From 7b824bbdd6210155bac9e1a1d795f94f8f2927b2 Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Sat, 26 Mar 2011 21:16:04 -0700 Subject: Input: wacom - constify wacom_features for a new missed Bamboo models Signed-off-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 5597637cfd41..ba6e17c5e254 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1366,23 +1366,23 @@ static const struct wacom_features wacom_features_0xE3 = { "Wacom ISDv4 E3", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255, 0, TABLETPC2FG }; static const struct wacom_features wacom_features_0x47 = { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, 31, INTUOS }; -static struct wacom_features wacom_features_0xD0 = +static const struct wacom_features wacom_features_0xD0 = { "Wacom Bamboo 2FG", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; -static struct wacom_features wacom_features_0xD1 = +static const struct wacom_features wacom_features_0xD1 = { "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; -static struct wacom_features wacom_features_0xD2 = +static const struct wacom_features wacom_features_0xD2 = { "Wacom Bamboo Craft", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; -static struct wacom_features wacom_features_0xD3 = +static const struct wacom_features wacom_features_0xD3 = { "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; static const struct wacom_features wacom_features_0xD4 = { "Wacom Bamboo Pen", WACOM_PKGLEN_BBFUN, 14720, 9200, 255, 63, BAMBOO_PT }; -static struct wacom_features wacom_features_0xD6 = +static const struct wacom_features wacom_features_0xD6 = { "Wacom BambooPT 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; -static struct wacom_features wacom_features_0xD7 = +static const struct wacom_features wacom_features_0xD7 = { "Wacom BambooPT 2FG Small", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; -static struct wacom_features wacom_features_0xD8 = +static const struct wacom_features wacom_features_0xD8 = { "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; -static struct wacom_features wacom_features_0xDA = +static const struct wacom_features wacom_features_0xDA = { "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; static struct wacom_features wacom_features_0xDB = { "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; -- cgit v1.2.3 From e35fb8c1db2d6fc92783d492e458d19b06502742 Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Sat, 26 Mar 2011 21:16:05 -0700 Subject: Input: wacom - report resolution for pen devices Touch resolution is reported to the userland by retrieving the value from the HID descriptor. But pen resolution is not since it can not be retrieved. The current Wacom X driver has a resolution table. To centralize the source of these values, the resolution entries are added in the wacom_features struct for x and y coordinates respectively. The values are then reported to the userland. Signed-off-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 271 ++++++++++++++++++++++++++------------- drivers/input/tablet/wacom_wac.h | 2 + 2 files changed, 181 insertions(+), 92 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index ba6e17c5e254..c87d94ff6ae4 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -16,6 +16,14 @@ #include "wacom.h" #include +/* resolution for penabled devices */ +#define WACOM_PL_RES 20 +#define WACOM_PENPRTN_RES 40 +#define WACOM_VOLITO_RES 50 +#define WACOM_GRAPHIRE_RES 80 +#define WACOM_INTUOS_RES 100 +#define WACOM_INTUOS3_RES 200 + static int wacom_penpartner_irq(struct wacom_wac *wacom) { unsigned char *data = wacom->data; @@ -1055,6 +1063,19 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev, input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max, features->pressure_fuzz, 0); + if (features->device_type == BTN_TOOL_PEN) { + /* penabled devices have fixed resolution for each model */ + input_abs_set_res(input_dev, ABS_X, features->x_resolution); + input_abs_set_res(input_dev, ABS_Y, features->y_resolution); + } else { + input_abs_set_res(input_dev, ABS_X, + wacom_calculate_touch_res(features->x_max, + features->x_phy)); + input_abs_set_res(input_dev, ABS_Y, + wacom_calculate_touch_res(features->y_max, + features->y_phy)); + } + __set_bit(ABS_MISC, input_dev->absbit); switch (wacom_wac->features.type) { @@ -1171,15 +1192,9 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev, case TABLETPC: __clear_bit(ABS_MISC, input_dev->absbit); - if (features->device_type != BTN_TOOL_PEN) { - input_abs_set_res(input_dev, ABS_X, - wacom_calculate_touch_res(features->x_max, - features->x_phy)); - input_abs_set_res(input_dev, ABS_Y, - wacom_calculate_touch_res(features->y_max, - features->y_phy)); + if (features->device_type != BTN_TOOL_PEN) break; /* no need to process stylus stuff */ - } + /* fall through */ case PL: @@ -1216,12 +1231,6 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev, input_set_abs_params(input_dev, ABS_MT_PRESSURE, 0, features->pressure_max, features->pressure_fuzz, 0); - input_abs_set_res(input_dev, ABS_X, - wacom_calculate_touch_res(features->x_max, - features->x_phy)); - input_abs_set_res(input_dev, ABS_Y, - wacom_calculate_touch_res(features->y_max, - features->y_phy)); } else if (features->device_type == BTN_TOOL_PEN) { __set_bit(BTN_TOOL_RUBBER, input_dev->keybit); __set_bit(BTN_TOOL_PEN, input_dev->keybit); @@ -1233,161 +1242,239 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev, } static const struct wacom_features wacom_features_0x00 = - { "Wacom Penpartner", WACOM_PKGLEN_PENPRTN, 5040, 3780, 255, 0, PENPARTNER }; + { "Wacom Penpartner", WACOM_PKGLEN_PENPRTN, 5040, 3780, 255, + 0, PENPARTNER, WACOM_PENPRTN_RES, WACOM_PENPRTN_RES }; static const struct wacom_features wacom_features_0x10 = - { "Wacom Graphire", WACOM_PKGLEN_GRAPHIRE, 10206, 7422, 511, 63, GRAPHIRE }; + { "Wacom Graphire", WACOM_PKGLEN_GRAPHIRE, 10206, 7422, 511, + 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES }; static const struct wacom_features wacom_features_0x11 = - { "Wacom Graphire2 4x5", WACOM_PKGLEN_GRAPHIRE, 10206, 7422, 511, 63, GRAPHIRE }; + { "Wacom Graphire2 4x5", WACOM_PKGLEN_GRAPHIRE, 10206, 7422, 511, + 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES }; static const struct wacom_features wacom_features_0x12 = - { "Wacom Graphire2 5x7", WACOM_PKGLEN_GRAPHIRE, 13918, 10206, 511, 63, GRAPHIRE }; + { "Wacom Graphire2 5x7", WACOM_PKGLEN_GRAPHIRE, 13918, 10206, 511, + 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES }; static const struct wacom_features wacom_features_0x13 = - { "Wacom Graphire3", WACOM_PKGLEN_GRAPHIRE, 10208, 7424, 511, 63, GRAPHIRE }; + { "Wacom Graphire3", WACOM_PKGLEN_GRAPHIRE, 10208, 7424, 511, + 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES }; static const struct wacom_features wacom_features_0x14 = - { "Wacom Graphire3 6x8", WACOM_PKGLEN_GRAPHIRE, 16704, 12064, 511, 63, GRAPHIRE }; + { "Wacom Graphire3 6x8", WACOM_PKGLEN_GRAPHIRE, 16704, 12064, 511, + 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES }; static const struct wacom_features wacom_features_0x15 = - { "Wacom Graphire4 4x5", WACOM_PKGLEN_GRAPHIRE, 10208, 7424, 511, 63, WACOM_G4 }; + { "Wacom Graphire4 4x5", WACOM_PKGLEN_GRAPHIRE, 10208, 7424, 511, + 63, WACOM_G4, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES }; static const struct wacom_features wacom_features_0x16 = - { "Wacom Graphire4 6x8", WACOM_PKGLEN_GRAPHIRE, 16704, 12064, 511, 63, WACOM_G4 }; + { "Wacom Graphire4 6x8", WACOM_PKGLEN_GRAPHIRE, 16704, 12064, 511, + 63, WACOM_G4, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES }; static const struct wacom_features wacom_features_0x17 = - { "Wacom BambooFun 4x5", WACOM_PKGLEN_BBFUN, 14760, 9225, 511, 63, WACOM_MO }; + { "Wacom BambooFun 4x5", WACOM_PKGLEN_BBFUN, 14760, 9225, 511, + 63, WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x18 = - { "Wacom BambooFun 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 511, 63, WACOM_MO }; + { "Wacom BambooFun 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 511, + 63, WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x19 = - { "Wacom Bamboo1 Medium", WACOM_PKGLEN_GRAPHIRE, 16704, 12064, 511, 63, GRAPHIRE }; + { "Wacom Bamboo1 Medium", WACOM_PKGLEN_GRAPHIRE, 16704, 12064, 511, + 63, GRAPHIRE, WACOM_GRAPHIRE_RES, WACOM_GRAPHIRE_RES }; static const struct wacom_features wacom_features_0x60 = - { "Wacom Volito", WACOM_PKGLEN_GRAPHIRE, 5104, 3712, 511, 63, GRAPHIRE }; + { "Wacom Volito", WACOM_PKGLEN_GRAPHIRE, 5104, 3712, 511, + 63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES }; static const struct wacom_features wacom_features_0x61 = - { "Wacom PenStation2", WACOM_PKGLEN_GRAPHIRE, 3250, 2320, 255, 63, GRAPHIRE }; + { "Wacom PenStation2", WACOM_PKGLEN_GRAPHIRE, 3250, 2320, 255, + 63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES }; static const struct wacom_features wacom_features_0x62 = - { "Wacom Volito2 4x5", WACOM_PKGLEN_GRAPHIRE, 5104, 3712, 511, 63, GRAPHIRE }; + { "Wacom Volito2 4x5", WACOM_PKGLEN_GRAPHIRE, 5104, 3712, 511, + 63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES }; static const struct wacom_features wacom_features_0x63 = - { "Wacom Volito2 2x3", WACOM_PKGLEN_GRAPHIRE, 3248, 2320, 511, 63, GRAPHIRE }; + { "Wacom Volito2 2x3", WACOM_PKGLEN_GRAPHIRE, 3248, 2320, 511, + 63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES }; static const struct wacom_features wacom_features_0x64 = - { "Wacom PenPartner2", WACOM_PKGLEN_GRAPHIRE, 3250, 2320, 511, 63, GRAPHIRE }; + { "Wacom PenPartner2", WACOM_PKGLEN_GRAPHIRE, 3250, 2320, 511, + 63, GRAPHIRE, WACOM_VOLITO_RES, WACOM_VOLITO_RES }; static const struct wacom_features wacom_features_0x65 = - { "Wacom Bamboo", WACOM_PKGLEN_BBFUN, 14760, 9225, 511, 63, WACOM_MO }; + { "Wacom Bamboo", WACOM_PKGLEN_BBFUN, 14760, 9225, 511, + 63, WACOM_MO, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x69 = - { "Wacom Bamboo1", WACOM_PKGLEN_GRAPHIRE, 5104, 3712, 511, 63, GRAPHIRE }; + { "Wacom Bamboo1", WACOM_PKGLEN_GRAPHIRE, 5104, 3712, 511, + 63, GRAPHIRE, WACOM_PENPRTN_RES, WACOM_PENPRTN_RES }; static const struct wacom_features wacom_features_0x20 = - { "Wacom Intuos 4x5", WACOM_PKGLEN_INTUOS, 12700, 10600, 1023, 31, INTUOS }; + { "Wacom Intuos 4x5", WACOM_PKGLEN_INTUOS, 12700, 10600, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x21 = - { "Wacom Intuos 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, 31, INTUOS }; + { "Wacom Intuos 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x22 = - { "Wacom Intuos 9x12", WACOM_PKGLEN_INTUOS, 30480, 24060, 1023, 31, INTUOS }; + { "Wacom Intuos 9x12", WACOM_PKGLEN_INTUOS, 30480, 24060, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x23 = - { "Wacom Intuos 12x12", WACOM_PKGLEN_INTUOS, 30480, 31680, 1023, 31, INTUOS }; + { "Wacom Intuos 12x12", WACOM_PKGLEN_INTUOS, 30480, 31680, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x24 = - { "Wacom Intuos 12x18", WACOM_PKGLEN_INTUOS, 45720, 31680, 1023, 31, INTUOS }; + { "Wacom Intuos 12x18", WACOM_PKGLEN_INTUOS, 45720, 31680, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x30 = - { "Wacom PL400", WACOM_PKGLEN_GRAPHIRE, 5408, 4056, 255, 0, PL }; + { "Wacom PL400", WACOM_PKGLEN_GRAPHIRE, 5408, 4056, 255, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0x31 = - { "Wacom PL500", WACOM_PKGLEN_GRAPHIRE, 6144, 4608, 255, 0, PL }; + { "Wacom PL500", WACOM_PKGLEN_GRAPHIRE, 6144, 4608, 255, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0x32 = - { "Wacom PL600", WACOM_PKGLEN_GRAPHIRE, 6126, 4604, 255, 0, PL }; + { "Wacom PL600", WACOM_PKGLEN_GRAPHIRE, 6126, 4604, 255, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0x33 = - { "Wacom PL600SX", WACOM_PKGLEN_GRAPHIRE, 6260, 5016, 255, 0, PL }; + { "Wacom PL600SX", WACOM_PKGLEN_GRAPHIRE, 6260, 5016, 255, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0x34 = - { "Wacom PL550", WACOM_PKGLEN_GRAPHIRE, 6144, 4608, 511, 0, PL }; + { "Wacom PL550", WACOM_PKGLEN_GRAPHIRE, 6144, 4608, 511, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0x35 = - { "Wacom PL800", WACOM_PKGLEN_GRAPHIRE, 7220, 5780, 511, 0, PL }; + { "Wacom PL800", WACOM_PKGLEN_GRAPHIRE, 7220, 5780, 511, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0x37 = - { "Wacom PL700", WACOM_PKGLEN_GRAPHIRE, 6758, 5406, 511, 0, PL }; + { "Wacom PL700", WACOM_PKGLEN_GRAPHIRE, 6758, 5406, 511, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0x38 = - { "Wacom PL510", WACOM_PKGLEN_GRAPHIRE, 6282, 4762, 511, 0, PL }; + { "Wacom PL510", WACOM_PKGLEN_GRAPHIRE, 6282, 4762, 511, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0x39 = - { "Wacom DTU710", WACOM_PKGLEN_GRAPHIRE, 34080, 27660, 511, 0, PL }; + { "Wacom DTU710", WACOM_PKGLEN_GRAPHIRE, 34080, 27660, 511, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0xC4 = - { "Wacom DTF521", WACOM_PKGLEN_GRAPHIRE, 6282, 4762, 511, 0, PL }; + { "Wacom DTF521", WACOM_PKGLEN_GRAPHIRE, 6282, 4762, 511, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0xC0 = - { "Wacom DTF720", WACOM_PKGLEN_GRAPHIRE, 6858, 5506, 511, 0, PL }; + { "Wacom DTF720", WACOM_PKGLEN_GRAPHIRE, 6858, 5506, 511, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0xC2 = - { "Wacom DTF720a", WACOM_PKGLEN_GRAPHIRE, 6858, 5506, 511, 0, PL }; + { "Wacom DTF720a", WACOM_PKGLEN_GRAPHIRE, 6858, 5506, 511, + 0, PL, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0x03 = - { "Wacom Cintiq Partner", WACOM_PKGLEN_GRAPHIRE, 20480, 15360, 511, 0, PTU }; + { "Wacom Cintiq Partner", WACOM_PKGLEN_GRAPHIRE, 20480, 15360, 511, + 0, PTU, WACOM_PL_RES, WACOM_PL_RES }; static const struct wacom_features wacom_features_0x41 = - { "Wacom Intuos2 4x5", WACOM_PKGLEN_INTUOS, 12700, 10600, 1023, 31, INTUOS }; + { "Wacom Intuos2 4x5", WACOM_PKGLEN_INTUOS, 12700, 10600, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x42 = - { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, 31, INTUOS }; + { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x43 = - { "Wacom Intuos2 9x12", WACOM_PKGLEN_INTUOS, 30480, 24060, 1023, 31, INTUOS }; + { "Wacom Intuos2 9x12", WACOM_PKGLEN_INTUOS, 30480, 24060, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x44 = - { "Wacom Intuos2 12x12", WACOM_PKGLEN_INTUOS, 30480, 31680, 1023, 31, INTUOS }; + { "Wacom Intuos2 12x12", WACOM_PKGLEN_INTUOS, 30480, 31680, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x45 = - { "Wacom Intuos2 12x18", WACOM_PKGLEN_INTUOS, 45720, 31680, 1023, 31, INTUOS }; + { "Wacom Intuos2 12x18", WACOM_PKGLEN_INTUOS, 45720, 31680, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xB0 = - { "Wacom Intuos3 4x5", WACOM_PKGLEN_INTUOS, 25400, 20320, 1023, 63, INTUOS3S }; + { "Wacom Intuos3 4x5", WACOM_PKGLEN_INTUOS, 25400, 20320, 1023, + 63, INTUOS3S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xB1 = - { "Wacom Intuos3 6x8", WACOM_PKGLEN_INTUOS, 40640, 30480, 1023, 63, INTUOS3 }; + { "Wacom Intuos3 6x8", WACOM_PKGLEN_INTUOS, 40640, 30480, 1023, + 63, INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xB2 = - { "Wacom Intuos3 9x12", WACOM_PKGLEN_INTUOS, 60960, 45720, 1023, 63, INTUOS3 }; + { "Wacom Intuos3 9x12", WACOM_PKGLEN_INTUOS, 60960, 45720, 1023, + 63, INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xB3 = - { "Wacom Intuos3 12x12", WACOM_PKGLEN_INTUOS, 60960, 60960, 1023, 63, INTUOS3L }; + { "Wacom Intuos3 12x12", WACOM_PKGLEN_INTUOS, 60960, 60960, 1023, + 63, INTUOS3L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xB4 = - { "Wacom Intuos3 12x19", WACOM_PKGLEN_INTUOS, 97536, 60960, 1023, 63, INTUOS3L }; + { "Wacom Intuos3 12x19", WACOM_PKGLEN_INTUOS, 97536, 60960, 1023, + 63, INTUOS3L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xB5 = - { "Wacom Intuos3 6x11", WACOM_PKGLEN_INTUOS, 54204, 31750, 1023, 63, INTUOS3 }; + { "Wacom Intuos3 6x11", WACOM_PKGLEN_INTUOS, 54204, 31750, 1023, + 63, INTUOS3, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xB7 = - { "Wacom Intuos3 4x6", WACOM_PKGLEN_INTUOS, 31496, 19685, 1023, 63, INTUOS3S }; + { "Wacom Intuos3 4x6", WACOM_PKGLEN_INTUOS, 31496, 19685, 1023, + 63, INTUOS3S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xB8 = - { "Wacom Intuos4 4x6", WACOM_PKGLEN_INTUOS, 31496, 19685, 2047, 63, INTUOS4S }; + { "Wacom Intuos4 4x6", WACOM_PKGLEN_INTUOS, 31496, 19685, 2047, + 63, INTUOS4S, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xB9 = - { "Wacom Intuos4 6x9", WACOM_PKGLEN_INTUOS, 44704, 27940, 2047, 63, INTUOS4 }; + { "Wacom Intuos4 6x9", WACOM_PKGLEN_INTUOS, 44704, 27940, 2047, + 63, INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xBA = - { "Wacom Intuos4 8x13", WACOM_PKGLEN_INTUOS, 65024, 40640, 2047, 63, INTUOS4L }; + { "Wacom Intuos4 8x13", WACOM_PKGLEN_INTUOS, 65024, 40640, 2047, + 63, INTUOS4L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xBB = - { "Wacom Intuos4 12x19", WACOM_PKGLEN_INTUOS, 97536, 60960, 2047, 63, INTUOS4L }; + { "Wacom Intuos4 12x19", WACOM_PKGLEN_INTUOS, 97536, 60960, 2047, + 63, INTUOS4L, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xBC = - { "Wacom Intuos4 WL", WACOM_PKGLEN_INTUOS, 40840, 25400, 2047, 63, INTUOS4 }; + { "Wacom Intuos4 WL", WACOM_PKGLEN_INTUOS, 40840, 25400, 2047, + 63, INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0x3F = - { "Wacom Cintiq 21UX", WACOM_PKGLEN_INTUOS, 87200, 65600, 1023, 63, CINTIQ }; + { "Wacom Cintiq 21UX", WACOM_PKGLEN_INTUOS, 87200, 65600, 1023, + 63, CINTIQ, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xC5 = - { "Wacom Cintiq 20WSX", WACOM_PKGLEN_INTUOS, 86680, 54180, 1023, 63, WACOM_BEE }; + { "Wacom Cintiq 20WSX", WACOM_PKGLEN_INTUOS, 86680, 54180, 1023, + 63, WACOM_BEE, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xC6 = - { "Wacom Cintiq 12WX", WACOM_PKGLEN_INTUOS, 53020, 33440, 1023, 63, WACOM_BEE }; + { "Wacom Cintiq 12WX", WACOM_PKGLEN_INTUOS, 53020, 33440, 1023, + 63, WACOM_BEE, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xC7 = - { "Wacom DTU1931", WACOM_PKGLEN_GRAPHIRE, 37832, 30305, 511, 0, PL }; + { "Wacom DTU1931", WACOM_PKGLEN_GRAPHIRE, 37832, 30305, 511, + 0, PL, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xCE = - { "Wacom DTU2231", WACOM_PKGLEN_GRAPHIRE, 47864, 27011, 511, 0, DTU }; + { "Wacom DTU2231", WACOM_PKGLEN_GRAPHIRE, 47864, 27011, 511, + 0, DTU, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xF0 = - { "Wacom DTU1631", WACOM_PKGLEN_GRAPHIRE, 34623, 19553, 511, 0, DTU }; + { "Wacom DTU1631", WACOM_PKGLEN_GRAPHIRE, 34623, 19553, 511, + 0, DTU, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xCC = - { "Wacom Cintiq 21UX2", WACOM_PKGLEN_INTUOS, 87200, 65600, 2047, 63, WACOM_21UX2 }; + { "Wacom Cintiq 21UX2", WACOM_PKGLEN_INTUOS, 87200, 65600, 2047, + 63, WACOM_21UX2, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0x90 = - { "Wacom ISDv4 90", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255, 0, TABLETPC }; + { "Wacom ISDv4 90", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255, + 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x93 = - { "Wacom ISDv4 93", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255, 0, TABLETPC }; + { "Wacom ISDv4 93", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255, + 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x9A = - { "Wacom ISDv4 9A", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255, 0, TABLETPC }; + { "Wacom ISDv4 9A", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255, + 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x9F = - { "Wacom ISDv4 9F", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255, 0, TABLETPC }; + { "Wacom ISDv4 9F", WACOM_PKGLEN_GRAPHIRE, 26202, 16325, 255, + 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xE2 = - { "Wacom ISDv4 E2", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255, 0, TABLETPC2FG }; + { "Wacom ISDv4 E2", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255, + 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xE3 = - { "Wacom ISDv4 E3", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255, 0, TABLETPC2FG }; + { "Wacom ISDv4 E3", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255, + 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x47 = - { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, 31, INTUOS }; + { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, + 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xD0 = - { "Wacom Bamboo 2FG", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; + { "Wacom Bamboo 2FG", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, + 63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xD1 = - { "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; + { "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, + 63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xD2 = - { "Wacom Bamboo Craft", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; + { "Wacom Bamboo Craft", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, + 63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xD3 = - { "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; + { "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, + 63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xD4 = - { "Wacom Bamboo Pen", WACOM_PKGLEN_BBFUN, 14720, 9200, 255, 63, BAMBOO_PT }; + { "Wacom Bamboo Pen", WACOM_PKGLEN_BBFUN, 14720, 9200, 255, + 63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xD6 = - { "Wacom BambooPT 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; + { "Wacom BambooPT 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, + 63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xD7 = - { "Wacom BambooPT 2FG Small", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; + { "Wacom BambooPT 2FG Small", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, + 63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xD8 = - { "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; + { "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, + 63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0xDA = - { "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT }; + { "Wacom Bamboo 2FG 4x5 SE", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, + 63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static struct wacom_features wacom_features_0xDB = - { "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT }; + { "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, + 63, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x6004 = - { "ISD-V4", WACOM_PKGLEN_GRAPHIRE, 12800, 8000, 255, 0, TABLETPC }; + { "ISD-V4", WACOM_PKGLEN_GRAPHIRE, 12800, 8000, 255, + 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; #define USB_DEVICE_WACOM(prod) \ USB_DEVICE(USB_VENDOR_ID_WACOM, prod), \ diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h index 835f756b150c..53eb71b68330 100644 --- a/drivers/input/tablet/wacom_wac.h +++ b/drivers/input/tablet/wacom_wac.h @@ -74,6 +74,8 @@ struct wacom_features { int pressure_max; int distance_max; int type; + int x_resolution; + int y_resolution; int device_type; int x_phy; int y_phy; -- cgit v1.2.3 From d51ca07634b8a441f731e087e93775a67d629a8c Mon Sep 17 00:00:00 2001 From: Sylvestre Ledru Date: Sat, 26 Mar 2011 22:52:25 -0700 Subject: Input: h3600_ts_input - fix a spelling error Signed-off-by: Sylvestre Ledru Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/h3600_ts_input.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c index b4d7f63deff1..efa06882de00 100644 --- a/drivers/input/touchscreen/h3600_ts_input.c +++ b/drivers/input/touchscreen/h3600_ts_input.c @@ -62,7 +62,7 @@ MODULE_LICENSE("GPL"); Programmer has no control over these numbers. TODO there are holes - specifically 1,7,0x0a */ -#define VERSION_ID 0 /* Get Version (request/respose) */ +#define VERSION_ID 0 /* Get Version (request/response) */ #define KEYBD_ID 2 /* Keyboard (event) */ #define TOUCHS_ID 3 /* Touch Screen (event)*/ #define EEPROM_READ_ID 4 /* (request/response) */ -- cgit v1.2.3 From f3cf5c4fedbe13880cd80a9fa1aebae79ebef20e Mon Sep 17 00:00:00 2001 From: Seth Forshee Date: Sat, 26 Mar 2011 22:53:34 -0700 Subject: Input: sparse-keymap - report scancodes with key events Scancodes are useful debugging aids when incorrect keycodes are being sent, as is common with laptop hotkeys. Signed-off-by: Seth Forshee Signed-off-by: Dmitry Torokhov --- drivers/input/sparse-keymap.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c index 337bf51bc984..74bca5d2f6dc 100644 --- a/drivers/input/sparse-keymap.c +++ b/drivers/input/sparse-keymap.c @@ -208,6 +208,11 @@ int sparse_keymap_setup(struct input_dev *dev, } } + if (test_bit(EV_KEY, dev->evbit)) { + __set_bit(EV_MSC, dev->evbit); + __set_bit(MSC_SCAN, dev->mscbit); + } + dev->keycode = map; dev->keycodemax = map_size; dev->getkeycode = sparse_keymap_getkeycode; @@ -268,6 +273,7 @@ void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *k { switch (ke->type) { case KE_KEY: + input_event(dev, EV_MSC, MSC_SCAN, ke->code); input_report_key(dev, ke->keycode, value); input_sync(dev); if (value && autorelease) { -- cgit v1.2.3 From 170531bae648c0ef8d56b44dc5bd8d67717b0db9 Mon Sep 17 00:00:00 2001 From: Seth Forshee Date: Sat, 26 Mar 2011 22:53:34 -0700 Subject: Input: sparse-keymap - report KEY_UNKNOWN for unknown scan codes This allows for debugging non-functional keys easily from userspace. Signed-off-by: Seth Forshee Signed-off-by: Dmitry Torokhov --- drivers/input/sparse-keymap.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c index 74bca5d2f6dc..fdb6a3976f94 100644 --- a/drivers/input/sparse-keymap.c +++ b/drivers/input/sparse-keymap.c @@ -209,6 +209,7 @@ int sparse_keymap_setup(struct input_dev *dev, } if (test_bit(EV_KEY, dev->evbit)) { + __set_bit(KEY_UNKNOWN, dev->keybit); __set_bit(EV_MSC, dev->evbit); __set_bit(MSC_SCAN, dev->mscbit); } @@ -311,12 +312,19 @@ bool sparse_keymap_report_event(struct input_dev *dev, unsigned int code, { const struct key_entry *ke = sparse_keymap_entry_from_scancode(dev, code); + struct key_entry unknown_ke; if (ke) { sparse_keymap_report_entry(dev, ke, value, autorelease); return true; } + /* Report an unknown key event as a debugging aid */ + unknown_ke.type = KE_KEY; + unknown_ke.code = code; + unknown_ke.keycode = KEY_UNKNOWN; + sparse_keymap_report_entry(dev, &unknown_ke, value, true); + return false; } EXPORT_SYMBOL(sparse_keymap_report_event); -- cgit v1.2.3 From a718d79cc0e0c2f0aa82ba2c54383a18f15b7738 Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Wed, 30 Mar 2011 22:25:34 -0700 Subject: Input: uinput - allow for 0/0 min/max on absolute axes. Some devices provide absolute axes with min/max of 0/0 (e.g. wacom's ABS_MISC axis). Current uinput restrictions do not allow duplication of these devices and require hacks in userspace to work around this. If the kernel accepts physical devices with a min/max of 0/0, uinput shouldn't disallow the same range. Signed-off-by: Peter Hutterer Signed-off-by: Dmitry Torokhov --- drivers/input/misc/uinput.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 364bdf43a381..736056897e50 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -302,10 +302,14 @@ static int uinput_validate_absbits(struct input_dev *dev) int retval = 0; for (cnt = 0; cnt < ABS_CNT; cnt++) { + int min, max; if (!test_bit(cnt, dev->absbit)) continue; - if (input_abs_get_max(dev, cnt) <= input_abs_get_min(dev, cnt)) { + min = input_abs_get_min(dev, cnt); + max = input_abs_get_max(dev, cnt); + + if ((min != 0 || max != 0) && max <= min) { printk(KERN_DEBUG "%s: invalid abs[%02x] min:%d max:%d\n", UINPUT_NAME, cnt, -- cgit v1.2.3 From 799a2a215ed7f9398a8d528767e64b8e39904105 Mon Sep 17 00:00:00 2001 From: Rajeev Kumar Date: Wed, 30 Mar 2011 22:33:42 -0700 Subject: Input: spear-keyboard - fix inverted condition in interrupt handler We should return IRQ_NONE from interrupt handler in case keyboard does not report DATA_AVAIL condition. Signed-off-by: Rajeev Kumar Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/spear-keyboard.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c index bee03d64c453..d712dffd2157 100644 --- a/drivers/input/keyboard/spear-keyboard.c +++ b/drivers/input/keyboard/spear-keyboard.c @@ -69,7 +69,7 @@ static irqreturn_t spear_kbd_interrupt(int irq, void *dev_id) u8 sts, val; sts = readb(kbd->io_base + STATUS_REG); - if (sts & DATA_AVAIL) + if (!(sts & DATA_AVAIL)) return IRQ_NONE; if (kbd->last_key != KEY_RESERVED) { -- cgit v1.2.3 From 708748670c7c6dd5bd3b141473086e6937e72737 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 31 Mar 2011 00:01:58 -0700 Subject: Input: synaptics - fix crash in synaptics_module_init() 'struct dmi_system_id' arrays must always have a terminator to keep dmi_check_system() from looking at data (and possibly crashing) it isn't supposed to look at. The issue went unnoticed until ef8313bb1a22e7d2125d9d758aa8a81f1de91d81, but was introduced about a year earlier with 7705d548cbe33f18ea7713b9a07aa11047aaeca4 (which also similarly changed lifebook.c, but the problem there got eliminated shortly afterwards). The first hunk therefore is a stable candidate back to 2.6.33, while the full change is needed only on 2.6.38. Signed-off-by: Jan Beulich Cc: stable@kernel.org Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/synaptics.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index aa186cf6c514..e06e045bf907 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -836,8 +836,8 @@ static const struct dmi_system_id __initconst toshiba_dmi_table[] = { }, }, - { } #endif + { } }; static bool broken_olpc_ec; @@ -851,8 +851,8 @@ static const struct dmi_system_id __initconst olpc_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "XO"), }, }, - { } #endif + { } }; void __init synaptics_module_init(void) -- cgit v1.2.3 From a2a94e7323dad972f23b9000cab150026c929b9f Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Thu, 31 Mar 2011 00:11:48 -0700 Subject: Input: i8042 - downgrade selftest error message to dbg() On a "really fragile" laptop I noticed a single i8042.c: i8042 controller selftest failed. (0x1 != 0x55) error in the log. But there's no reason to print this message at KERN_ERR level each time that loop fails, especially since the message telling about the overall selftest failure is printed at KERN_INFO level (on X86). Add an actual error message for non-X86 systems, where a selftest failure is (apparently) more serious. Remove a space in an another error message. Signed-off-by: Paul Bolle Signed-off-by: Dmitry Torokhov --- drivers/input/serio/i8042.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index ac4c93689ab9..d37a48e099d0 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -869,15 +869,15 @@ static int i8042_controller_selftest(void) do { if (i8042_command(¶m, I8042_CMD_CTL_TEST)) { - pr_err("i8042 controller self test timeout\n"); + pr_err("i8042 controller selftest timeout\n"); return -ENODEV; } if (param == I8042_RET_CTL_TEST) return 0; - pr_err("i8042 controller selftest failed. (%#x != %#x)\n", - param, I8042_RET_CTL_TEST); + dbg("i8042 controller selftest: %#x != %#x\n", + param, I8042_RET_CTL_TEST); msleep(50); } while (i++ < 5); @@ -891,6 +891,7 @@ static int i8042_controller_selftest(void) pr_info("giving up on controller selftest, continuing anyway...\n"); return 0; #else + pr_err("i8042 controller selftest failed\n"); return -EIO; #endif } -- cgit v1.2.3 From 25985edcedea6396277003854657b5f3cb31a628 Mon Sep 17 00:00:00 2001 From: Lucas De Marchi Date: Wed, 30 Mar 2011 22:57:33 -0300 Subject: Fix common misspellings Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi --- drivers/input/joydev.c | 4 ++-- drivers/input/joystick/a3d.c | 4 ++-- drivers/input/keyboard/davinci_keyscan.c | 2 +- drivers/input/misc/adxl34x.c | 2 +- drivers/input/misc/keyspan_remote.c | 2 +- drivers/input/misc/wistron_btns.c | 2 +- drivers/input/mouse/bcm5974.c | 2 +- drivers/input/mouse/synaptics_i2c.c | 2 +- drivers/input/mouse/vsxxxaa.c | 2 +- drivers/input/serio/hp_sdc.c | 2 +- drivers/input/serio/xilinx_ps2.c | 2 +- drivers/input/touchscreen/intel-mid-touch.c | 2 +- drivers/input/touchscreen/ucb1400_ts.c | 2 +- drivers/input/touchscreen/wm9705.c | 2 +- drivers/input/touchscreen/wm9712.c | 2 +- drivers/input/touchscreen/wm9713.c | 2 +- drivers/input/touchscreen/wm97xx-core.c | 4 ++-- 17 files changed, 20 insertions(+), 20 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c index 3182c9cd1b0e..5688b5c88f24 100644 --- a/drivers/input/joydev.c +++ b/drivers/input/joydev.c @@ -758,7 +758,7 @@ static void joydev_remove_chrdev(struct joydev *joydev) } /* - * Mark device non-existant. This disables writes, ioctls and + * Mark device non-existent. This disables writes, ioctls and * prevents new users from opening the device. Already posted * blocking reads will stay, however new ones will fail. */ @@ -777,7 +777,7 @@ static void joydev_cleanup(struct joydev *joydev) joydev_hangup(joydev); joydev_remove_chrdev(joydev); - /* joydev is marked dead so noone else accesses joydev->open */ + /* joydev is marked dead so no one else accesses joydev->open */ if (joydev->open) input_close_device(handle); } diff --git a/drivers/input/joystick/a3d.c b/drivers/input/joystick/a3d.c index d259b41354b8..1639ab2b94b7 100644 --- a/drivers/input/joystick/a3d.c +++ b/drivers/input/joystick/a3d.c @@ -3,7 +3,7 @@ */ /* - * FP-Gaming Assasin 3D joystick driver for Linux + * FP-Gaming Assassin 3D joystick driver for Linux */ /* @@ -34,7 +34,7 @@ #include #include -#define DRIVER_DESC "FP-Gaming Assasin 3D joystick driver" +#define DRIVER_DESC "FP-Gaming Assassin 3D joystick driver" MODULE_AUTHOR("Vojtech Pavlik "); MODULE_DESCRIPTION(DRIVER_DESC); diff --git a/drivers/input/keyboard/davinci_keyscan.c b/drivers/input/keyboard/davinci_keyscan.c index a91ee941b5c1..cd89d17162a3 100644 --- a/drivers/input/keyboard/davinci_keyscan.c +++ b/drivers/input/keyboard/davinci_keyscan.c @@ -5,7 +5,7 @@ * * Author: Miguel Aguilar * - * Intial Code: Sandeep Paulraj + * Initial Code: Sandeep Paulraj * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/drivers/input/misc/adxl34x.c b/drivers/input/misc/adxl34x.c index de5900d50788..144ddbdeb9b3 100644 --- a/drivers/input/misc/adxl34x.c +++ b/drivers/input/misc/adxl34x.c @@ -716,7 +716,7 @@ struct adxl34x *adxl34x_probe(struct device *dev, int irq, pdata = dev->platform_data; if (!pdata) { dev_dbg(dev, - "No platfrom data: Using default initialization\n"); + "No platform data: Using default initialization\n"); pdata = &adxl34x_default_init; } diff --git a/drivers/input/misc/keyspan_remote.c b/drivers/input/misc/keyspan_remote.c index a93c525475c6..fc62256c963f 100644 --- a/drivers/input/misc/keyspan_remote.c +++ b/drivers/input/misc/keyspan_remote.c @@ -312,7 +312,7 @@ static void keyspan_check_data(struct usb_keyspan *remote) remote->data.tester = remote->data.tester >> 5; remote->data.bits_left -= 5; } else { - err("Bad message recieved, no stop bit found.\n"); + err("Bad message received, no stop bit found.\n"); } dev_dbg(&remote->udev->dev, diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c index 12501de0c5cd..52b419348983 100644 --- a/drivers/input/misc/wistron_btns.c +++ b/drivers/input/misc/wistron_btns.c @@ -274,7 +274,7 @@ static struct key_entry keymap_fs_amilo_pro_v3505[] __initdata = { { KE_BLUETOOTH, 0x30 }, /* Fn+F10 */ { KE_KEY, 0x31, {KEY_MAIL} }, /* mail button */ { KE_KEY, 0x36, {KEY_WWW} }, /* www button */ - { KE_WIFI, 0x78 }, /* satelite dish button */ + { KE_WIFI, 0x78 }, /* satellite dish button */ { KE_END, 0 } }; diff --git a/drivers/input/mouse/bcm5974.c b/drivers/input/mouse/bcm5974.c index 3aead91bacc8..3126983c004a 100644 --- a/drivers/input/mouse/bcm5974.c +++ b/drivers/input/mouse/bcm5974.c @@ -639,7 +639,7 @@ exit: * device, resulting in trackpad malfunction under certain * circumstances. To get around this problem, there is at least one * example that utilizes the USB_QUIRK_RESET_RESUME quirk in order to - * recieve a reset_resume request rather than the normal resume. + * receive a reset_resume request rather than the normal resume. * Since the implementation of reset_resume is equal to mode switch * plus start_traffic, it seems easier to always do the switch when * starting traffic on the device. diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c index f6aa26d305ed..cba3c84d2f21 100644 --- a/drivers/input/mouse/synaptics_i2c.c +++ b/drivers/input/mouse/synaptics_i2c.c @@ -462,7 +462,7 @@ static void synaptics_i2c_work_handler(struct work_struct *work) * While interrupt driven, there is no real need to poll the device. * But touchpads are very sensitive, so there could be errors * related to physical environment and the attention line isn't - * neccesarily asserted. In such case we can lose the touchpad. + * necessarily asserted. In such case we can lose the touchpad. * We poll the device once in THREAD_IRQ_SLEEP_SECS and * if error is detected, we try to reset and reconfigure the touchpad. */ diff --git a/drivers/input/mouse/vsxxxaa.c b/drivers/input/mouse/vsxxxaa.c index bf2c0c80d6cc..eb9a3cfbeefa 100644 --- a/drivers/input/mouse/vsxxxaa.c +++ b/drivers/input/mouse/vsxxxaa.c @@ -334,7 +334,7 @@ static void vsxxxaa_handle_POR_packet(struct vsxxxaa *mouse) * M: manufacturer location code * R: revision code * E: Error code. If it's in the range of 0x00..0x1f, only some - * minor problem occured. Errors >= 0x20 are considered bad + * minor problem occurred. Errors >= 0x20 are considered bad * and the device may not work properly... * D: <0010> == mouse, <0100> == tablet */ diff --git a/drivers/input/serio/hp_sdc.c b/drivers/input/serio/hp_sdc.c index 8c0b51c31424..42206205e4f5 100644 --- a/drivers/input/serio/hp_sdc.c +++ b/drivers/input/serio/hp_sdc.c @@ -955,7 +955,7 @@ static int __init hp_sdc_init_hppa(struct parisc_device *d) INIT_DELAYED_WORK(&moduleloader_work, request_module_delayed); ret = hp_sdc_init(); - /* after successfull initialization give SDC some time to settle + /* after successful initialization give SDC some time to settle * and then load the hp_sdc_mlc upper layer driver */ if (!ret) schedule_delayed_work(&moduleloader_work, diff --git a/drivers/input/serio/xilinx_ps2.c b/drivers/input/serio/xilinx_ps2.c index 7540bafc95cf..80baa53da5b1 100644 --- a/drivers/input/serio/xilinx_ps2.c +++ b/drivers/input/serio/xilinx_ps2.c @@ -225,7 +225,7 @@ static void sxps2_close(struct serio *pserio) /** * xps2_of_probe - probe method for the PS/2 device. * @of_dev: pointer to OF device structure - * @match: pointer to the stucture used for matching a device + * @match: pointer to the structure used for matching a device * * This function probes the PS/2 device in the device tree. * It initializes the driver data structure and the hardware. diff --git a/drivers/input/touchscreen/intel-mid-touch.c b/drivers/input/touchscreen/intel-mid-touch.c index c0307b22d86f..66c96bfc5522 100644 --- a/drivers/input/touchscreen/intel-mid-touch.c +++ b/drivers/input/touchscreen/intel-mid-touch.c @@ -542,7 +542,7 @@ static int __devinit mrstouch_adc_init(struct mrstouch_dev *tsdev) * ADC power on, start, enable PENDET and set loop delay * ADC loop delay is set to 4.5 ms approximately * Loop delay more than this results in jitter in adc readings - * Setting loop delay to 0 (continous loop) in MAXIM stops PENDET + * Setting loop delay to 0 (continuous loop) in MAXIM stops PENDET * interrupt generation sometimes. */ diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c index 028a5363eea1..3b5b5df04dd6 100644 --- a/drivers/input/touchscreen/ucb1400_ts.c +++ b/drivers/input/touchscreen/ucb1400_ts.c @@ -6,7 +6,7 @@ * Copyright: MontaVista Software, Inc. * * Spliting done by: Marek Vasut - * If something doesnt work and it worked before spliting, e-mail me, + * If something doesn't work and it worked before spliting, e-mail me, * dont bother Nicolas please ;-) * * This program is free software; you can redistribute it and/or modify diff --git a/drivers/input/touchscreen/wm9705.c b/drivers/input/touchscreen/wm9705.c index 6b5be742c27d..98e61175d3f5 100644 --- a/drivers/input/touchscreen/wm9705.c +++ b/drivers/input/touchscreen/wm9705.c @@ -306,7 +306,7 @@ static int wm9705_acc_enable(struct wm97xx *wm, int enable) dig2 = wm->dig[2]; if (enable) { - /* continous mode */ + /* continuous mode */ if (wm->mach_ops->acc_startup && (ret = wm->mach_ops->acc_startup(wm)) < 0) return ret; diff --git a/drivers/input/touchscreen/wm9712.c b/drivers/input/touchscreen/wm9712.c index 7490b05c3566..2bc2fb801009 100644 --- a/drivers/input/touchscreen/wm9712.c +++ b/drivers/input/touchscreen/wm9712.c @@ -419,7 +419,7 @@ static int wm9712_acc_enable(struct wm97xx *wm, int enable) dig2 = wm->dig[2]; if (enable) { - /* continous mode */ + /* continuous mode */ if (wm->mach_ops->acc_startup) { ret = wm->mach_ops->acc_startup(wm); if (ret < 0) diff --git a/drivers/input/touchscreen/wm9713.c b/drivers/input/touchscreen/wm9713.c index 238b5132712e..73ec99568f12 100644 --- a/drivers/input/touchscreen/wm9713.c +++ b/drivers/input/touchscreen/wm9713.c @@ -431,7 +431,7 @@ static int wm9713_acc_enable(struct wm97xx *wm, int enable) dig3 = wm->dig[2]; if (enable) { - /* continous mode */ + /* continuous mode */ if (wm->mach_ops->acc_startup && (ret = wm->mach_ops->acc_startup(wm)) < 0) return ret; diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c index 6b75c9f660ae..5dbe73af2f8f 100644 --- a/drivers/input/touchscreen/wm97xx-core.c +++ b/drivers/input/touchscreen/wm97xx-core.c @@ -335,7 +335,7 @@ static void wm97xx_pen_irq_worker(struct work_struct *work) */ if (!wm->mach_ops->acc_enabled || wm->mach_ops->acc_pen_down) { if (wm->pen_is_down && !pen_was_down) { - /* Data is not availiable immediately on pen down */ + /* Data is not available immediately on pen down */ queue_delayed_work(wm->ts_workq, &wm->ts_reader, 1); } @@ -354,7 +354,7 @@ static void wm97xx_pen_irq_worker(struct work_struct *work) * Codec PENDOWN irq handler * * We have to disable the codec interrupt in the handler because it - * can take upto 1ms to clear the interrupt source. We schedule a task + * can take up to 1ms to clear the interrupt source. We schedule a task * in a work queue to do the actual interaction with the chip. The * interrupt is then enabled again in the slow handler when the source * has been cleared. -- cgit v1.2.3 From 26fcd2a7618db6c16be6aa3e56c0f3c25381e5a3 Mon Sep 17 00:00:00 2001 From: Manoj Iyer Date: Thu, 31 Mar 2011 22:39:43 -0700 Subject: Input: wacom - add support for Lenovo tablet ID (0xE6) Signed-off-by: Manoj Iyer Acked-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index c87d94ff6ae4..08ba5ad9c9be 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1439,6 +1439,9 @@ static const struct wacom_features wacom_features_0xE2 = static const struct wacom_features wacom_features_0xE3 = { "Wacom ISDv4 E3", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255, 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; +static const struct wacom_features wacom_features_0xE6 = + { "Wacom ISDv4 E6", WACOM_PKGLEN_TPC2FG, 27760, 15694, 255, + 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x47 = { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, 31, INTUOS, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; @@ -1561,6 +1564,7 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0x9F) }, { USB_DEVICE_WACOM(0xE2) }, { USB_DEVICE_WACOM(0xE3) }, + { USB_DEVICE_WACOM(0xE6) }, { USB_DEVICE_WACOM(0x47) }, { USB_DEVICE_LENOVO(0x6004) }, { } -- cgit v1.2.3 From e28e1d93e9591d21e440f5210a9b4317c59445df Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 2 Apr 2011 21:20:24 -0700 Subject: Input: rpckbd - fix a leak of the IRQ during init failure In rpckbd_open prror path, free_irq() was using NULL rather than the driver data as the data pointer so free_irq() wouldn't have matched. Signed-off-by: Axel Lin Signed-off-by: Dmitry Torokhov --- drivers/input/serio/rpckbd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/serio/rpckbd.c b/drivers/input/serio/rpckbd.c index 9da6fbcaaa7e..7ec3c97dc1b9 100644 --- a/drivers/input/serio/rpckbd.c +++ b/drivers/input/serio/rpckbd.c @@ -90,7 +90,7 @@ static int rpckbd_open(struct serio *port) if (request_irq(IRQ_KEYBOARDTX, rpckbd_tx, 0, "rpckbd", port) != 0) { printk(KERN_ERR "rpckbd.c: Could not allocate keyboard transmit IRQ\n"); - free_irq(IRQ_KEYBOARDRX, NULL); + free_irq(IRQ_KEYBOARDRX, port); return -EBUSY; } -- cgit v1.2.3 From 8f74c0661c42104b3e3d2c032bc61efde15360ad Mon Sep 17 00:00:00 2001 From: Shubhrajyoti D Date: Wed, 6 Apr 2011 15:31:22 -0700 Subject: Input: twl4030_keypad - avoid potential NULL-pointer dereference Signed-off-by: Shubhrajyoti D Acked-by: Axel Lin Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/twl4030_keypad.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c index 09bef79d9da1..cc06c4b2f920 100644 --- a/drivers/input/keyboard/twl4030_keypad.c +++ b/drivers/input/keyboard/twl4030_keypad.c @@ -338,7 +338,7 @@ static int __devinit twl4030_kp_probe(struct platform_device *pdev) u8 reg; int error; - if (!pdata || !pdata->rows || !pdata->cols || + if (!pdata || !pdata->rows || !pdata->cols || !pdata->keymap_data || pdata->rows > TWL4030_MAX_ROWS || pdata->cols > TWL4030_MAX_COLS) { dev_err(&pdev->dev, "Invalid platform_data\n"); return -EINVAL; -- cgit v1.2.3 From 908433833cac977563e9bef8b206990d846876b4 Mon Sep 17 00:00:00 2001 From: Christoph Fritz Date: Wed, 6 Apr 2011 15:33:16 -0700 Subject: Input: h3600_ts - fix error handling at connect In case of an error in h3600ts_connect(), deconstruct in correct order and with the right calls. Signed-off-by: Christoph Fritz Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/h3600_ts_input.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c index efa06882de00..45f93d0f5592 100644 --- a/drivers/input/touchscreen/h3600_ts_input.c +++ b/drivers/input/touchscreen/h3600_ts_input.c @@ -399,31 +399,34 @@ static int h3600ts_connect(struct serio *serio, struct serio_driver *drv) IRQF_SHARED | IRQF_DISABLED, "h3600_action", &ts->dev)) { printk(KERN_ERR "h3600ts.c: Could not allocate Action Button IRQ!\n"); err = -EBUSY; - goto fail2; + goto fail1; } if (request_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, npower_button_handler, IRQF_SHARED | IRQF_DISABLED, "h3600_suspend", &ts->dev)) { printk(KERN_ERR "h3600ts.c: Could not allocate Power Button IRQ!\n"); err = -EBUSY; - goto fail3; + goto fail2; } serio_set_drvdata(serio, ts); err = serio_open(serio, drv); if (err) - return err; + goto fail3; //h3600_flite_control(1, 25); /* default brightness */ - input_register_device(ts->dev); + err = input_register_device(ts->dev); + if (err) + goto fail4; return 0; -fail3: free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev); +fail4: serio_close(serio); +fail3: serio_set_drvdata(serio, NULL); + free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev); fail2: free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts->dev); -fail1: serio_set_drvdata(serio, NULL); - input_free_device(input_dev); +fail1: input_free_device(input_dev); kfree(ts); return err; } -- cgit v1.2.3 From c68b2081250a87ba9b9a173faa5a600cc684602e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 11 Apr 2011 23:50:02 -0700 Subject: Input: twl4030_keypad - fix potential NULL dereference in twl4030_kp_probe() We should first check whether platform data is NULL or not, before dereferencing it to get the keymap. Signed-off-by: Axel Lin Reviewed-by: Felipe Balbi Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/twl4030_keypad.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c index cc06c4b2f920..a26922cf0e84 100644 --- a/drivers/input/keyboard/twl4030_keypad.c +++ b/drivers/input/keyboard/twl4030_keypad.c @@ -332,7 +332,7 @@ static int __devinit twl4030_kp_program(struct twl4030_keypad *kp) static int __devinit twl4030_kp_probe(struct platform_device *pdev) { struct twl4030_keypad_data *pdata = pdev->dev.platform_data; - const struct matrix_keymap_data *keymap_data = pdata->keymap_data; + const struct matrix_keymap_data *keymap_data; struct twl4030_keypad *kp; struct input_dev *input; u8 reg; @@ -344,6 +344,8 @@ static int __devinit twl4030_kp_probe(struct platform_device *pdev) return -EINVAL; } + keymap_data = pdata->keymap_data; + kp = kzalloc(sizeof(*kp), GFP_KERNEL); input = input_allocate_device(); if (!kp || !input) { -- cgit v1.2.3 From 92a47674f57b4a84a43ce93b0dfdb596c0543749 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Mon, 11 Apr 2011 23:34:37 -0700 Subject: Input: gpio_keys - add support for EV_ABS With this patch you can setup a group of GPIOs representing a specific position on an EV_ABS axis. Signed-off-by: Alexander Stein Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/gpio_keys.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c index eb3006361ee4..73e58a96ab99 100644 --- a/drivers/input/keyboard/gpio_keys.c +++ b/drivers/input/keyboard/gpio_keys.c @@ -324,7 +324,12 @@ static void gpio_keys_report_event(struct gpio_button_data *bdata) unsigned int type = button->type ?: EV_KEY; int state = (gpio_get_value_cansleep(button->gpio) ? 1 : 0) ^ button->active_low; - input_event(input, type, button->code, !!state); + if (type == EV_ABS) { + if (state) + input_event(input, type, button->code, button->value); + } else { + input_event(input, type, button->code, !!state); + } input_sync(input); } @@ -363,7 +368,7 @@ static int __devinit gpio_keys_setup_key(struct platform_device *pdev, struct gpio_button_data *bdata, struct gpio_keys_button *button) { - char *desc = button->desc ? button->desc : "gpio_keys"; + const char *desc = button->desc ? button->desc : "gpio_keys"; struct device *dev = &pdev->dev; unsigned long irqflags; int irq, error; -- cgit v1.2.3 From 467112777c462a592c27338eeea5d1a320e82b5f Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Mon, 11 Apr 2011 23:34:48 -0700 Subject: Input: gpio-keys - add support for setting device name This patch allows to set a device name which helps distinguishing several gpio-keys devices. Signed-off-by: Alexander Stein Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/gpio_keys.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c index 73e58a96ab99..6e6145b9a4c1 100644 --- a/drivers/input/keyboard/gpio_keys.c +++ b/drivers/input/keyboard/gpio_keys.c @@ -473,7 +473,7 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ddata); input_set_drvdata(input, ddata); - input->name = pdev->name; + input->name = pdata->name ? : pdev->name; input->phys = "gpio-keys/input0"; input->dev.parent = &pdev->dev; input->open = gpio_keys_open; -- cgit v1.2.3 From 4203306506ebe4eaaa84a2cbd7c1eb2fc0128faa Mon Sep 17 00:00:00 2001 From: Zhang Jiejing Date: Mon, 11 Apr 2011 23:48:23 -0700 Subject: Input: add driver for Maxim max11801 touchscreen controller Add MAXI max11801 resistive touchscreen controller driver. This driver uses Auto Mode and Aperture Mode. Support for other max1180x devices can be added to this driver as well, as they use almost the same register addresses and codes. You can find data sheet here: http://www.maxim-ic.com/datasheet/index.mvp/id/5943 Signed-off-by: Zhang Jiejing Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/Kconfig | 12 ++ drivers/input/touchscreen/Makefile | 1 + drivers/input/touchscreen/max11801_ts.c | 272 ++++++++++++++++++++++++++++++++ 3 files changed, 285 insertions(+) create mode 100644 drivers/input/touchscreen/max11801_ts.c (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 112ec55f2939..6b2d441a7dde 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -248,6 +248,18 @@ config TOUCHSCREEN_LPC32XX To compile this driver as a module, choose M here: the module will be called lpc32xx_ts. +config TOUCHSCREEN_MAX11801 + tristate "MAX11801 based touchscreens" + depends on I2C + help + Say Y here if you have a MAX11801 based touchscreen + controller. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called max11801_ts. + config TOUCHSCREEN_MCS5000 tristate "MELFAS MCS-5000 touchscreen" depends on I2C diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index ca94098d4c92..282d6f76ae26 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o obj-$(CONFIG_TOUCHSCREEN_INTEL_MID) += intel-mid-touch.o obj-$(CONFIG_TOUCHSCREEN_LPC32XX) += lpc32xx_ts.o +obj-$(CONFIG_TOUCHSCREEN_MAX11801) += max11801_ts.o obj-$(CONFIG_TOUCHSCREEN_MC13783) += mc13783_ts.o obj-$(CONFIG_TOUCHSCREEN_MCS5000) += mcs5000_ts.o obj-$(CONFIG_TOUCHSCREEN_MIGOR) += migor_ts.o diff --git a/drivers/input/touchscreen/max11801_ts.c b/drivers/input/touchscreen/max11801_ts.c new file mode 100644 index 000000000000..4f2713d92791 --- /dev/null +++ b/drivers/input/touchscreen/max11801_ts.c @@ -0,0 +1,272 @@ +/* + * Driver for MAXI MAX11801 - A Resistive touch screen controller with + * i2c interface + * + * Copyright (C) 2011 Freescale Semiconductor, Inc. + * Author: Zhang Jiejing + * + * Based on mcs5000_ts.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + */ + +/* + * This driver aims to support the series of MAXI touch chips max11801 + * through max11803. The main difference between these 4 chips can be + * found in the table below: + * ----------------------------------------------------- + * | CHIP | AUTO MODE SUPPORT(FIFO) | INTERFACE | + * |----------------------------------------------------| + * | max11800 | YES | SPI | + * | max11801 | YES | I2C | + * | max11802 | NO | SPI | + * | max11803 | NO | I2C | + * ------------------------------------------------------ + * + * Currently, this driver only supports max11801. + * + * Data Sheet: + * http://www.maxim-ic.com/datasheet/index.mvp/id/5943 + */ + +#include +#include +#include +#include +#include +#include +#include + +/* Register Address define */ +#define GENERNAL_STATUS_REG 0x00 +#define GENERNAL_CONF_REG 0x01 +#define MESURE_RES_CONF_REG 0x02 +#define MESURE_AVER_CONF_REG 0x03 +#define ADC_SAMPLE_TIME_CONF_REG 0x04 +#define PANEL_SETUPTIME_CONF_REG 0x05 +#define DELAY_CONVERSION_CONF_REG 0x06 +#define TOUCH_DETECT_PULLUP_CONF_REG 0x07 +#define AUTO_MODE_TIME_CONF_REG 0x08 /* only for max11800/max11801 */ +#define APERTURE_CONF_REG 0x09 /* only for max11800/max11801 */ +#define AUX_MESURE_CONF_REG 0x0a +#define OP_MODE_CONF_REG 0x0b + +/* FIFO is found only in max11800 and max11801 */ +#define FIFO_RD_CMD (0x50 << 1) +#define MAX11801_FIFO_INT (1 << 2) +#define MAX11801_FIFO_OVERFLOW (1 << 3) + +#define XY_BUFSIZE 4 +#define XY_BUF_OFFSET 4 + +#define MAX11801_MAX_X 0xfff +#define MAX11801_MAX_Y 0xfff + +#define MEASURE_TAG_OFFSET 2 +#define MEASURE_TAG_MASK (3 << MEASURE_TAG_OFFSET) +#define EVENT_TAG_OFFSET 0 +#define EVENT_TAG_MASK (3 << EVENT_TAG_OFFSET) +#define MEASURE_X_TAG (0 << MEASURE_TAG_OFFSET) +#define MEASURE_Y_TAG (1 << MEASURE_TAG_OFFSET) + +/* These are the state of touch event state machine */ +enum { + EVENT_INIT, + EVENT_MIDDLE, + EVENT_RELEASE, + EVENT_FIFO_END +}; + +struct max11801_data { + struct i2c_client *client; + struct input_dev *input_dev; +}; + +static u8 read_register(struct i2c_client *client, int addr) +{ + /* XXX: The chip ignores LSB of register address */ + return i2c_smbus_read_byte_data(client, addr << 1); +} + +static int max11801_write_reg(struct i2c_client *client, int addr, int data) +{ + /* XXX: The chip ignores LSB of register address */ + return i2c_smbus_write_byte_data(client, addr << 1, data); +} + +static irqreturn_t max11801_ts_interrupt(int irq, void *dev_id) +{ + struct max11801_data *data = dev_id; + struct i2c_client *client = data->client; + int status, i, ret; + u8 buf[XY_BUFSIZE]; + int x = -1; + int y = -1; + + status = read_register(data->client, GENERNAL_STATUS_REG); + + if (status & (MAX11801_FIFO_INT | MAX11801_FIFO_OVERFLOW)) { + status = read_register(data->client, GENERNAL_STATUS_REG); + + ret = i2c_smbus_read_i2c_block_data(client, FIFO_RD_CMD, + XY_BUFSIZE, buf); + + /* + * We should get 4 bytes buffer that contains X,Y + * and event tag + */ + if (ret < XY_BUFSIZE) + goto out; + + for (i = 0; i < XY_BUFSIZE; i += XY_BUFSIZE / 2) { + if ((buf[i + 1] & MEASURE_TAG_MASK) == MEASURE_X_TAG) + x = (buf[i] << XY_BUF_OFFSET) + + (buf[i + 1] >> XY_BUF_OFFSET); + else if ((buf[i + 1] & MEASURE_TAG_MASK) == MEASURE_Y_TAG) + y = (buf[i] << XY_BUF_OFFSET) + + (buf[i + 1] >> XY_BUF_OFFSET); + } + + if ((buf[1] & EVENT_TAG_MASK) != (buf[3] & EVENT_TAG_MASK)) + goto out; + + switch (buf[1] & EVENT_TAG_MASK) { + case EVENT_INIT: + /* fall through */ + case EVENT_MIDDLE: + input_report_abs(data->input_dev, ABS_X, x); + input_report_abs(data->input_dev, ABS_Y, y); + input_event(data->input_dev, EV_KEY, BTN_TOUCH, 1); + input_sync(data->input_dev); + break; + + case EVENT_RELEASE: + input_event(data->input_dev, EV_KEY, BTN_TOUCH, 0); + input_sync(data->input_dev); + break; + + case EVENT_FIFO_END: + break; + } + } +out: + return IRQ_HANDLED; +} + +static void __devinit max11801_ts_phy_init(struct max11801_data *data) +{ + struct i2c_client *client = data->client; + + /* Average X,Y, take 16 samples, average eight media sample */ + max11801_write_reg(client, MESURE_AVER_CONF_REG, 0xff); + /* X,Y panel setup time set to 20us */ + max11801_write_reg(client, PANEL_SETUPTIME_CONF_REG, 0x11); + /* Rough pullup time (2uS), Fine pullup time (10us) */ + max11801_write_reg(client, TOUCH_DETECT_PULLUP_CONF_REG, 0x10); + /* Auto mode init period = 5ms , scan period = 5ms*/ + max11801_write_reg(client, AUTO_MODE_TIME_CONF_REG, 0xaa); + /* Aperture X,Y set to +- 4LSB */ + max11801_write_reg(client, APERTURE_CONF_REG, 0x33); + /* Enable Power, enable Automode, enable Aperture, enable Average X,Y */ + max11801_write_reg(client, OP_MODE_CONF_REG, 0x36); +} + +static int __devinit max11801_ts_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct max11801_data *data; + struct input_dev *input_dev; + int error; + + data = kzalloc(sizeof(struct max11801_data), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!data || !input_dev) { + dev_err(&client->dev, "Failed to allocate memory\n"); + error = -ENOMEM; + goto err_free_mem; + } + + data->client = client; + data->input_dev = input_dev; + + input_dev->name = "max11801_ts"; + input_dev->id.bustype = BUS_I2C; + input_dev->dev.parent = &client->dev; + + __set_bit(EV_ABS, input_dev->evbit); + __set_bit(EV_KEY, input_dev->evbit); + __set_bit(BTN_TOUCH, input_dev->keybit); + input_set_abs_params(input_dev, ABS_X, 0, MAX11801_MAX_X, 0, 0); + input_set_abs_params(input_dev, ABS_Y, 0, MAX11801_MAX_Y, 0, 0); + input_set_drvdata(input_dev, data); + + max11801_ts_phy_init(data); + + error = request_threaded_irq(client->irq, NULL, max11801_ts_interrupt, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + "max11801_ts", data); + if (error) { + dev_err(&client->dev, "Failed to register interrupt\n"); + goto err_free_mem; + } + + error = input_register_device(data->input_dev); + if (error) + goto err_free_irq; + + i2c_set_clientdata(client, data); + return 0; + +err_free_irq: + free_irq(client->irq, data); +err_free_mem: + input_free_device(input_dev); + kfree(data); + return error; +} + +static __devexit int max11801_ts_remove(struct i2c_client *client) +{ + struct max11801_data *data = i2c_get_clientdata(client); + + free_irq(client->irq, data); + input_unregister_device(data->input_dev); + kfree(data); + + return 0; +} + +static const struct i2c_device_id max11801_ts_id[] = { + {"max11801", 0}, + { } +}; +MODULE_DEVICE_TABLE(i2c, max11801_ts_id); + +static struct i2c_driver max11801_ts_driver = { + .driver = { + .name = "max11801_ts", + .owner = THIS_MODULE, + }, + .id_table = max11801_ts_id, + .probe = max11801_ts_probe, + .remove = __devexit_p(max11801_ts_remove), +}; + +static int __init max11801_ts_init(void) +{ + return i2c_add_driver(&max11801_ts_driver); +} + +static void __exit max11801_ts_exit(void) +{ + i2c_del_driver(&max11801_ts_driver); +} + +module_init(max11801_ts_init); +module_exit(max11801_ts_exit); + +MODULE_AUTHOR("Zhang Jiejing "); +MODULE_DESCRIPTION("Touchscreen driver for MAXI MAX11801 controller"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 910d80513056589d3b12b3aad8598d19e0a0a5bd Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Tue, 12 Apr 2011 23:14:38 -0700 Subject: Input: atmel_mxt_ts - support 12bit resolution Atmel touchscreen chip can support 12bit resolution and this patch modifies to get maximum x and y size from platform data. Signed-off-by: Joonyoung Shim Acked-by: Iiro Valkonen Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/atmel_mxt_ts.c | 53 +++++++++++++++++++++++--------- 1 file changed, 39 insertions(+), 14 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 4012436633b1..a97905a17b72 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -196,9 +196,12 @@ #define MXT_PRESS (1 << 6) #define MXT_DETECT (1 << 7) +/* Touch orient bits */ +#define MXT_XY_SWITCH (1 << 0) +#define MXT_X_INVERT (1 << 1) +#define MXT_Y_INVERT (1 << 2) + /* Touchscreen absolute values */ -#define MXT_MAX_XC 0x3ff -#define MXT_MAX_YC 0x3ff #define MXT_MAX_AREA 0xff #define MXT_MAX_FINGER 10 @@ -246,6 +249,8 @@ struct mxt_data { struct mxt_info info; struct mxt_finger finger[MXT_MAX_FINGER]; unsigned int irq; + unsigned int max_x; + unsigned int max_y; }; static bool mxt_object_readable(unsigned int type) @@ -549,8 +554,13 @@ static void mxt_input_touchevent(struct mxt_data *data, if (!(status & (MXT_PRESS | MXT_MOVE))) return; - x = (message->message[1] << 2) | ((message->message[3] & ~0x3f) >> 6); - y = (message->message[2] << 2) | ((message->message[3] & ~0xf3) >> 2); + x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf); + y = (message->message[2] << 4) | ((message->message[3] & 0xf)); + if (data->max_x < 1024) + x = x >> 2; + if (data->max_y < 1024) + y = y >> 2; + area = message->message[4]; dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id, @@ -845,6 +855,20 @@ static int mxt_initialize(struct mxt_data *data) return 0; } +static void mxt_calc_resolution(struct mxt_data *data) +{ + unsigned int max_x = data->pdata->x_size - 1; + unsigned int max_y = data->pdata->y_size - 1; + + if (data->pdata->orient & MXT_XY_SWITCH) { + data->max_x = max_y; + data->max_y = max_x; + } else { + data->max_x = max_x; + data->max_y = max_y; + } +} + static ssize_t mxt_object_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1052,31 +1076,32 @@ static int __devinit mxt_probe(struct i2c_client *client, input_dev->open = mxt_input_open; input_dev->close = mxt_input_close; + data->client = client; + data->input_dev = input_dev; + data->pdata = pdata; + data->irq = client->irq; + + mxt_calc_resolution(data); + __set_bit(EV_ABS, input_dev->evbit); __set_bit(EV_KEY, input_dev->evbit); __set_bit(BTN_TOUCH, input_dev->keybit); /* For single touch */ input_set_abs_params(input_dev, ABS_X, - 0, MXT_MAX_XC, 0, 0); + 0, data->max_x, 0, 0); input_set_abs_params(input_dev, ABS_Y, - 0, MXT_MAX_YC, 0, 0); + 0, data->max_y, 0, 0); /* For multi touch */ input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, MXT_MAX_AREA, 0, 0); input_set_abs_params(input_dev, ABS_MT_POSITION_X, - 0, MXT_MAX_XC, 0, 0); + 0, data->max_x, 0, 0); input_set_abs_params(input_dev, ABS_MT_POSITION_Y, - 0, MXT_MAX_YC, 0, 0); + 0, data->max_y, 0, 0); input_set_drvdata(input_dev, data); - - data->client = client; - data->input_dev = input_dev; - data->pdata = pdata; - data->irq = client->irq; - i2c_set_clientdata(client, data); error = mxt_initialize(data); -- cgit v1.2.3 From 08960a070add74cda8c968b8ace5418a5acf17c3 Mon Sep 17 00:00:00 2001 From: Iiro Valkonen Date: Tue, 12 Apr 2011 23:16:40 -0700 Subject: Input: atmel_mxt_ts - make CHG line high after enabling interrupts Make the CHG line (interrupt line) go high after the interrupts have been enabled to make sure we don't miss the falling edge. Signed-off-by: Iiro Valkonen Acked-by: Joonyoung Shim Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/atmel_mxt_ts.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index a97905a17b72..2accf1dffee9 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -814,10 +814,6 @@ static int mxt_initialize(struct mxt_data *data) if (error) return error; - error = mxt_make_highchg(data); - if (error) - return error; - mxt_handle_pdata(data); /* Backup to memory */ @@ -1005,6 +1001,10 @@ static ssize_t mxt_update_fw_store(struct device *dev, enable_irq(data->irq); + error = mxt_make_highchg(data); + if (error) + return error; + return count; } @@ -1115,6 +1115,10 @@ static int __devinit mxt_probe(struct i2c_client *client, goto err_free_object; } + error = mxt_make_highchg(data); + if (error) + goto err_free_irq; + error = input_register_device(input_dev); if (error) goto err_free_irq; -- cgit v1.2.3 From 8b86c1c28f569301aa1a113a060f9ed803300903 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Tue, 12 Apr 2011 23:18:59 -0700 Subject: Input: atmel_mxt_ts - convert to MT protocol B Atmel touchscreen chips can use MT protocol B because they can assign unique id to ABS_MT_TRACKING_ID from finger id provided by hardware. Signed-off-by: Joonyoung Shim Reviewed-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/atmel_mxt_ts.c | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 2accf1dffee9..1e61387c73ca 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -17,7 +17,7 @@ #include #include #include -#include +#include #include #include @@ -504,19 +504,21 @@ static void mxt_input_report(struct mxt_data *data, int single_id) if (!finger[id].status) continue; - input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, - finger[id].status != MXT_RELEASE ? - finger[id].area : 0); - input_report_abs(input_dev, ABS_MT_POSITION_X, - finger[id].x); - input_report_abs(input_dev, ABS_MT_POSITION_Y, - finger[id].y); - input_mt_sync(input_dev); + input_mt_slot(input_dev, id); + input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, + finger[id].status != MXT_RELEASE); - if (finger[id].status == MXT_RELEASE) - finger[id].status = 0; - else + if (finger[id].status != MXT_RELEASE) { finger_num++; + input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, + finger[id].area); + input_report_abs(input_dev, ABS_MT_POSITION_X, + finger[id].x); + input_report_abs(input_dev, ABS_MT_POSITION_Y, + finger[id].y); + } else { + finger[id].status = 0; + } } input_report_key(input_dev, BTN_TOUCH, finger_num > 0); @@ -1094,6 +1096,7 @@ static int __devinit mxt_probe(struct i2c_client *client, 0, data->max_y, 0, 0); /* For multi touch */ + input_mt_init_slots(input_dev, MXT_MAX_FINGER); input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0, MXT_MAX_AREA, 0, 0); input_set_abs_params(input_dev, ABS_MT_POSITION_X, -- cgit v1.2.3 From 9fb0f14e31b6101a0cc69a333b43541044f9b0a6 Mon Sep 17 00:00:00 2001 From: Jeff Brown Date: Tue, 12 Apr 2011 23:29:38 -0700 Subject: Input: evdev - indicate buffer overrun with SYN_DROPPED Add a new EV_SYN code, SYN_DROPPED, to inform the client when input events have been dropped from the evdev input buffer due to a buffer overrun. The client should use this event as a hint to reset its state or ignore all following events until the next packet begins. Signed-off-by: Jeff Brown [dtor@mail.ru: Implement Henrik's suggestion and drop old events in case of overflow.] Signed-off-by: Dmitry Torokhov --- drivers/input/evdev.c | 33 +++++++++++++++++++++------------ 1 file changed, 21 insertions(+), 12 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 7f42d3a454d2..88d8e4cb419a 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -39,13 +39,13 @@ struct evdev { }; struct evdev_client { - int head; - int tail; + unsigned int head; + unsigned int tail; spinlock_t buffer_lock; /* protects access to buffer, head and tail */ struct fasync_struct *fasync; struct evdev *evdev; struct list_head node; - int bufsize; + unsigned int bufsize; struct input_event buffer[]; }; @@ -55,16 +55,25 @@ static DEFINE_MUTEX(evdev_table_mutex); static void evdev_pass_event(struct evdev_client *client, struct input_event *event) { - /* - * Interrupts are disabled, just acquire the lock. - * Make sure we don't leave with the client buffer - * "empty" by having client->head == client->tail. - */ + /* Interrupts are disabled, just acquire the lock. */ spin_lock(&client->buffer_lock); - do { - client->buffer[client->head++] = *event; - client->head &= client->bufsize - 1; - } while (client->head == client->tail); + + client->buffer[client->head++] = *event; + client->head &= client->bufsize - 1; + + if (unlikely(client->head == client->tail)) { + /* + * This effectively "drops" all unconsumed events, leaving + * EV_SYN/SYN_DROPPED plus the newest event in the queue. + */ + client->tail = (client->head - 2) & (client->bufsize - 1); + + client->buffer[client->tail].time = event->time; + client->buffer[client->tail].type = EV_SYN; + client->buffer[client->tail].code = SYN_DROPPED; + client->buffer[client->tail].value = 0; + } + spin_unlock(&client->buffer_lock); if (event->type == EV_SYN) -- cgit v1.2.3 From 80b4895aa4578e9372d76cd4063f82d0c3994d77 Mon Sep 17 00:00:00 2001 From: Jeff Brown Date: Mon, 18 Apr 2011 10:08:02 -0700 Subject: Input: estimate number of events per packet Calculate a default based on the number of ABS axes, REL axes, and MT slots for the device during input device registration. Signed-off-by: Jeff Brown Reviewed-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov --- drivers/input/input.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/input.c b/drivers/input/input.c index d6e8bd8a851c..ebbceedc92f4 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -1746,6 +1746,42 @@ void input_set_capability(struct input_dev *dev, unsigned int type, unsigned int } EXPORT_SYMBOL(input_set_capability); +static unsigned int input_estimate_events_per_packet(struct input_dev *dev) +{ + int mt_slots; + int i; + unsigned int events; + + if (dev->mtsize) { + mt_slots = dev->mtsize; + } else if (test_bit(ABS_MT_TRACKING_ID, dev->absbit)) { + mt_slots = dev->absinfo[ABS_MT_TRACKING_ID].maximum - + dev->absinfo[ABS_MT_TRACKING_ID].minimum + 1, + clamp(mt_slots, 2, 32); + } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) { + mt_slots = 2; + } else { + mt_slots = 0; + } + + events = mt_slots + 1; /* count SYN_MT_REPORT and SYN_REPORT */ + + for (i = 0; i < ABS_CNT; i++) { + if (test_bit(i, dev->absbit)) { + if (input_is_mt_axis(i)) + events += mt_slots; + else + events++; + } + } + + for (i = 0; i < REL_CNT; i++) + if (test_bit(i, dev->relbit)) + events++; + + return events; +} + #define INPUT_CLEANSE_BITMASK(dev, type, bits) \ do { \ if (!test_bit(EV_##type, dev->evbit)) \ @@ -1793,6 +1829,10 @@ int input_register_device(struct input_dev *dev) /* Make sure that bitmasks not mentioned in dev->evbit are clean. */ input_cleanse_bitmasks(dev); + if (!dev->hint_events_per_packet) + dev->hint_events_per_packet = + input_estimate_events_per_packet(dev); + /* * If delay and period are pre-set by the driver, then autorepeating * is handled by the driver itself and we don't do it in input.c. -- cgit v1.2.3 From c36b58e8a9112017c2bcc322cc98e71241814303 Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Mon, 18 Apr 2011 10:17:17 -0700 Subject: Input: xen-kbdfront - fix mouse getting stuck after save/restore Mouse gets "stuck" after restore of PV guest but buttons are in working condition. If driver has been configured for ABS coordinates at start it will get XENKBD_TYPE_POS events and then suddenly after restore it'll start getting XENKBD_TYPE_MOTION events, that will be dropped later and they won't get into user-space. Regression was introduced by hunk 5 and 6 of 5ea5254aa0ad269cfbd2875c973ef25ab5b5e9db ("Input: xen-kbdfront - advertise either absolute or relative coordinates"). Driver on restore should ask xen for request-abs-pointer again if it is available. So restore parts that did it before 5ea5254. Acked-by: Olaf Hering Signed-off-by: Igor Mammedov [v1: Expanded the commit description] Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Dmitry Torokhov --- drivers/input/misc/xen-kbdfront.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c index 7077f9bf5ead..62bae99424e6 100644 --- a/drivers/input/misc/xen-kbdfront.c +++ b/drivers/input/misc/xen-kbdfront.c @@ -303,7 +303,7 @@ static void xenkbd_backend_changed(struct xenbus_device *dev, enum xenbus_state backend_state) { struct xenkbd_info *info = dev_get_drvdata(&dev->dev); - int val; + int ret, val; switch (backend_state) { case XenbusStateInitialising: @@ -316,6 +316,17 @@ static void xenkbd_backend_changed(struct xenbus_device *dev, case XenbusStateInitWait: InitWait: + ret = xenbus_scanf(XBT_NIL, info->xbdev->otherend, + "feature-abs-pointer", "%d", &val); + if (ret < 0) + val = 0; + if (val) { + ret = xenbus_printf(XBT_NIL, info->xbdev->nodename, + "request-abs-pointer", "1"); + if (ret) + pr_warning("xenkbd: can't request abs-pointer"); + } + xenbus_switch_state(dev, XenbusStateConnected); break; -- cgit v1.2.3 From b1c43f82c5aa265442f82dba31ce985ebb7aa71c Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Mon, 21 Mar 2011 12:25:08 +0200 Subject: tty: make receive_buf() return the amout of bytes received it makes it simpler to keep track of the amount of bytes received and simplifies how flush_to_ldisc counts the remaining bytes. It also fixes a bug of lost bytes on n_tty when flushing too many bytes via the USB serial gadget driver. Tested-by: Stefan Bigler Tested-by: Toby Gray Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/input/serio/serport.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/serio/serport.c b/drivers/input/serio/serport.c index 8755f5f3ad37..f3698967edf6 100644 --- a/drivers/input/serio/serport.c +++ b/drivers/input/serio/serport.c @@ -120,17 +120,21 @@ static void serport_ldisc_close(struct tty_struct *tty) * 'interrupt' routine. */ -static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count) +static unsigned int serport_ldisc_receive(struct tty_struct *tty, + const unsigned char *cp, char *fp, int count) { struct serport *serport = (struct serport*) tty->disc_data; unsigned long flags; unsigned int ch_flags; + int ret = 0; int i; spin_lock_irqsave(&serport->lock, flags); - if (!test_bit(SERPORT_ACTIVE, &serport->flags)) + if (!test_bit(SERPORT_ACTIVE, &serport->flags)) { + ret = -EINVAL; goto out; + } for (i = 0; i < count; i++) { switch (fp[i]) { @@ -152,6 +156,8 @@ static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *c out: spin_unlock_irqrestore(&serport->lock, flags); + + return ret == 0 ? count : ret; } /* -- cgit v1.2.3 From cdda911c34006f1089f3c87b1a1f31ab3a4722f2 Mon Sep 17 00:00:00 2001 From: Jeff Brown Date: Tue, 26 Apr 2011 22:16:11 -0700 Subject: Input: evdev - only signal polls on full packets This patch modifies evdev so that it only becomes readable when the buffer contains an EV_SYN/SYN_REPORT event. On SMP systems, it is possible for an evdev client blocked on poll() to wake up and read events from the evdev ring buffer at the same rate as they are enqueued. This can result in high CPU usage, particularly for MT devices, because the client ends up reading events one at a time instead of reading complete packets. We eliminate this problem by making the device readable only when the buffer contains at least one complete packet. This causes clients to block until the entire packet is available. Signed-off-by: Jeff Brown Signed-off-by: Dmitry Torokhov --- drivers/input/evdev.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 88d8e4cb419a..75c4e8683033 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -41,6 +41,7 @@ struct evdev { struct evdev_client { unsigned int head; unsigned int tail; + unsigned int packet_head; /* [future] position of the first element of next packet */ spinlock_t buffer_lock; /* protects access to buffer, head and tail */ struct fasync_struct *fasync; struct evdev *evdev; @@ -72,12 +73,16 @@ static void evdev_pass_event(struct evdev_client *client, client->buffer[client->tail].type = EV_SYN; client->buffer[client->tail].code = SYN_DROPPED; client->buffer[client->tail].value = 0; - } - spin_unlock(&client->buffer_lock); + client->packet_head = client->tail; + } - if (event->type == EV_SYN) + if (event->type == EV_SYN && event->code == SYN_REPORT) { + client->packet_head = client->head; kill_fasync(&client->fasync, SIGIO, POLL_IN); + } + + spin_unlock(&client->buffer_lock); } /* @@ -387,12 +392,12 @@ static ssize_t evdev_read(struct file *file, char __user *buffer, if (count < input_event_size()) return -EINVAL; - if (client->head == client->tail && evdev->exist && + if (client->packet_head == client->tail && evdev->exist && (file->f_flags & O_NONBLOCK)) return -EAGAIN; retval = wait_event_interruptible(evdev->wait, - client->head != client->tail || !evdev->exist); + client->packet_head != client->tail || !evdev->exist); if (retval) return retval; @@ -421,7 +426,7 @@ static unsigned int evdev_poll(struct file *file, poll_table *wait) poll_wait(file, &evdev->wait, wait); mask = evdev->exist ? POLLOUT | POLLWRNORM : POLLHUP | POLLERR; - if (client->head != client->tail) + if (client->packet_head != client->tail) mask |= POLLIN | POLLRDNORM; return mask; -- cgit v1.2.3 From 94bb530c247a29f75fc728e5f8374a83d59d7e45 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 27 Apr 2011 21:39:20 -0700 Subject: Input: qt1070 - add MODULE_DEVICE_TABLE Adding the necessary MODULE_DEVICE_TABLE() information allows the driver to be automatically loaded by udev Signed-off-by: Axel Lin Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/qt1070.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c index fba8404c7297..ca7b89196ab7 100644 --- a/drivers/input/keyboard/qt1070.c +++ b/drivers/input/keyboard/qt1070.c @@ -248,6 +248,7 @@ static const struct i2c_device_id qt1070_id[] = { { "qt1070", 0 }, { }, }; +MODULE_DEVICE_TABLE(i2c, qt1070_id); static struct i2c_driver qt1070_driver = { .driver = { -- cgit v1.2.3 From 60c8ba6478bb483ecd6069f566d02e33d319e72e Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 27 Apr 2011 21:39:57 -0700 Subject: Input: omap-keypad - fix a wrong free_irq() parameter In current implementation, free_irq() was using NULL rather than the driver data as the data pointer so free_irq() wouldn't have matched. Signed-off-by: Axel Lin Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/omap-keypad.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c index 0e2a19cb43d8..f23a743817db 100644 --- a/drivers/input/keyboard/omap-keypad.c +++ b/drivers/input/keyboard/omap-keypad.c @@ -413,7 +413,7 @@ static int __devinit omap_kp_probe(struct platform_device *pdev) return 0; err5: for (i = irq_idx - 1; i >=0; i--) - free_irq(row_gpios[i], NULL); + free_irq(row_gpios[i], omap_kp); err4: input_unregister_device(omap_kp->input); input_dev = NULL; @@ -444,11 +444,11 @@ static int __devexit omap_kp_remove(struct platform_device *pdev) gpio_free(col_gpios[i]); for (i = 0; i < omap_kp->rows; i++) { gpio_free(row_gpios[i]); - free_irq(gpio_to_irq(row_gpios[i]), NULL); + free_irq(gpio_to_irq(row_gpios[i]), omap_kp); } } else { omap_writew(1, OMAP1_MPUIO_BASE + OMAP_MPUIO_KBD_MASKIT); - free_irq(omap_kp->irq, NULL); + free_irq(omap_kp->irq, omap_kp); } del_timer_sync(&omap_kp->timer); -- cgit v1.2.3 From 5c9db64888ecabfb170081335f30e3d7192fbcf4 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 27 Apr 2011 21:41:19 -0700 Subject: Input: twl4030-pwrbutton - fix a leak of the IRQ during init failure In twl4030_pwrbutton_probe error path, free_irq() was using NULL rather than the driver data as the data pointer so free_irq() wouldn't have matched. Signed-off-by: Axel Lin Signed-off-by: Dmitry Torokhov --- drivers/input/misc/twl4030-pwrbutton.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c index f16972bddca4..38e4b507b94c 100644 --- a/drivers/input/misc/twl4030-pwrbutton.c +++ b/drivers/input/misc/twl4030-pwrbutton.c @@ -89,7 +89,7 @@ static int __init twl4030_pwrbutton_probe(struct platform_device *pdev) return 0; free_irq: - free_irq(irq, NULL); + free_irq(irq, pwr); free_input_dev: input_free_device(pwr); return err; -- cgit v1.2.3 From f5346668150c37094b42cc2d07ec5fd1451eb980 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Apr 2011 23:08:34 -0700 Subject: Input: wm831x-ts - fix races with IRQ management If the WM831x pen down and data IRQs run in parallel it is possible for the data and pen down IRQs to deadlock themselves as one is part way through disabling its operation while the other is part way through enabling. Fix this by always disabling the pen down interrupt while data is active and vice versa. When a changeover is required we disable the IRQ that is to be stopped then schedule work that will enable the new IRQ. We need to handle the data flow in the data IRQ as the readback from the device needs to be ordered correctly with the IRQ for robust operation. This also fixes an issue when using the built in IRQs due to enable_irq() not being valid from interrupt context on an interrupt controller with bus operations like the built in IRQ controller - this issue may also have affected other interrupt controllers. We can't rely on having the data and pen down IRQs available via GPIOs on the CPU on every system. Signed-off-by: Mark Brown Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/wm831x-ts.c | 54 +++++++++++++++++++++++++++++++---- 1 file changed, 49 insertions(+), 5 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c index 6ae054f8e0aa..b9373012b3e6 100644 --- a/drivers/input/touchscreen/wm831x-ts.c +++ b/drivers/input/touchscreen/wm831x-ts.c @@ -68,8 +68,23 @@ struct wm831x_ts { unsigned int pd_irq; bool pressure; bool pen_down; + struct work_struct pd_data_work; }; +static void wm831x_pd_data_work(struct work_struct *work) +{ + struct wm831x_ts *wm831x_ts = + container_of(work, struct wm831x_ts, pd_data_work); + + if (wm831x_ts->pen_down) { + enable_irq(wm831x_ts->data_irq); + dev_dbg(wm831x_ts->wm831x->dev, "IRQ PD->DATA done\n"); + } else { + enable_irq(wm831x_ts->pd_irq); + dev_dbg(wm831x_ts->wm831x->dev, "IRQ DATA->PD done\n"); + } +} + static irqreturn_t wm831x_ts_data_irq(int irq, void *irq_data) { struct wm831x_ts *wm831x_ts = irq_data; @@ -110,6 +125,9 @@ static irqreturn_t wm831x_ts_data_irq(int irq, void *irq_data) } if (!wm831x_ts->pen_down) { + /* Switch from data to pen down */ + dev_dbg(wm831x->dev, "IRQ DATA->PD\n"); + disable_irq_nosync(wm831x_ts->data_irq); /* Don't need data any more */ @@ -128,6 +146,8 @@ static irqreturn_t wm831x_ts_data_irq(int irq, void *irq_data) ABS_PRESSURE, 0); input_report_key(wm831x_ts->input_dev, BTN_TOUCH, 0); + + schedule_work(&wm831x_ts->pd_data_work); } input_sync(wm831x_ts->input_dev); @@ -141,6 +161,11 @@ static irqreturn_t wm831x_ts_pen_down_irq(int irq, void *irq_data) struct wm831x *wm831x = wm831x_ts->wm831x; int ena = 0; + if (wm831x_ts->pen_down) + return IRQ_HANDLED; + + disable_irq_nosync(wm831x_ts->pd_irq); + /* Start collecting data */ if (wm831x_ts->pressure) ena |= WM831X_TCH_Z_ENA; @@ -156,7 +181,10 @@ static irqreturn_t wm831x_ts_pen_down_irq(int irq, void *irq_data) WM831X_TCHPD_EINT, WM831X_TCHPD_EINT); wm831x_ts->pen_down = true; - enable_irq(wm831x_ts->data_irq); + + /* Switch from pen down to data */ + dev_dbg(wm831x->dev, "IRQ PD->DATA\n"); + schedule_work(&wm831x_ts->pd_data_work); return IRQ_HANDLED; } @@ -182,13 +210,28 @@ static void wm831x_ts_input_close(struct input_dev *idev) struct wm831x_ts *wm831x_ts = input_get_drvdata(idev); struct wm831x *wm831x = wm831x_ts->wm831x; + /* Shut the controller down, disabling all other functionality too */ wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1, - WM831X_TCH_ENA | WM831X_TCH_CVT_ENA | - WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA | - WM831X_TCH_Z_ENA, 0); + WM831X_TCH_ENA | WM831X_TCH_X_ENA | + WM831X_TCH_Y_ENA | WM831X_TCH_Z_ENA, 0); - if (wm831x_ts->pen_down) + /* Make sure any pending IRQs are done, the above will prevent + * new ones firing. + */ + synchronize_irq(wm831x_ts->data_irq); + synchronize_irq(wm831x_ts->pd_irq); + + /* Make sure the IRQ completion work is quiesced */ + flush_work_sync(&wm831x_ts->pd_data_work); + + /* If we ended up with the pen down then make sure we revert back + * to pen detection state for the next time we start up. + */ + if (wm831x_ts->pen_down) { disable_irq(wm831x_ts->data_irq); + enable_irq(wm831x_ts->pd_irq); + wm831x_ts->pen_down = false; + } } static __devinit int wm831x_ts_probe(struct platform_device *pdev) @@ -212,6 +255,7 @@ static __devinit int wm831x_ts_probe(struct platform_device *pdev) wm831x_ts->wm831x = wm831x; wm831x_ts->input_dev = input_dev; + INIT_WORK(&wm831x_ts->pd_data_work, wm831x_pd_data_work); /* * If we have a direct IRQ use it, otherwise use the interrupt -- cgit v1.2.3 From acad9853b95df6a3887f52e0ec88e4a77119ee28 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Apr 2011 23:08:51 -0700 Subject: Input: wm831x-ts - allow IRQ flags to be specified This allows maximum flexibility for configuring the direct GPIO based interrupts. Signed-off-by: Mark Brown Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/wm831x-ts.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c index b9373012b3e6..78e8705df20d 100644 --- a/drivers/input/touchscreen/wm831x-ts.c +++ b/drivers/input/touchscreen/wm831x-ts.c @@ -241,7 +241,7 @@ static __devinit int wm831x_ts_probe(struct platform_device *pdev) struct wm831x_pdata *core_pdata = dev_get_platdata(pdev->dev.parent); struct wm831x_touch_pdata *pdata = NULL; struct input_dev *input_dev; - int error; + int error, irqf; if (core_pdata) pdata = core_pdata->touch; @@ -314,9 +314,14 @@ static __devinit int wm831x_ts_probe(struct platform_device *pdev) wm831x_set_bits(wm831x, WM831X_TOUCH_CONTROL_1, WM831X_TCH_RATE_MASK, 6); + if (pdata && pdata->data_irqf) + irqf = pdata->data_irqf; + else + irqf = IRQF_TRIGGER_HIGH; + error = request_threaded_irq(wm831x_ts->data_irq, NULL, wm831x_ts_data_irq, - IRQF_ONESHOT, + irqf | IRQF_ONESHOT, "Touchscreen data", wm831x_ts); if (error) { dev_err(&pdev->dev, "Failed to request data IRQ %d: %d\n", @@ -325,9 +330,14 @@ static __devinit int wm831x_ts_probe(struct platform_device *pdev) } disable_irq(wm831x_ts->data_irq); + if (pdata && pdata->pd_irqf) + irqf = pdata->pd_irqf; + else + irqf = IRQF_TRIGGER_HIGH; + error = request_threaded_irq(wm831x_ts->pd_irq, NULL, wm831x_ts_pen_down_irq, - IRQF_ONESHOT, + irqf | IRQF_ONESHOT, "Touchscreen pen down", wm831x_ts); if (error) { dev_err(&pdev->dev, "Failed to request pen down IRQ %d: %d\n", -- cgit v1.2.3 From bf283707d5fb174ec09215ae19860ad04ba7b67a Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 27 Apr 2011 23:09:26 -0700 Subject: Input: wm831x-ts - move BTN_TOUCH reporting to data transfer Don't report BTN_TOUCH until we've got data as some less robust applications can be confused by getting a touch event by itself and it doesn't seem unreasonable for them to expect coordinates along with a touch. Signed-off-by: Mark Brown Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/wm831x-ts.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c index 78e8705df20d..9175d49d2546 100644 --- a/drivers/input/touchscreen/wm831x-ts.c +++ b/drivers/input/touchscreen/wm831x-ts.c @@ -148,6 +148,8 @@ static irqreturn_t wm831x_ts_data_irq(int irq, void *irq_data) input_report_key(wm831x_ts->input_dev, BTN_TOUCH, 0); schedule_work(&wm831x_ts->pd_data_work); + } else { + input_report_key(wm831x_ts->input_dev, BTN_TOUCH, 1); } input_sync(wm831x_ts->input_dev); @@ -174,9 +176,6 @@ static irqreturn_t wm831x_ts_pen_down_irq(int irq, void *irq_data) WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA | WM831X_TCH_Z_ENA, WM831X_TCH_X_ENA | WM831X_TCH_Y_ENA | ena); - input_report_key(wm831x_ts->input_dev, BTN_TOUCH, 1); - input_sync(wm831x_ts->input_dev); - wm831x_set_bits(wm831x, WM831X_INTERRUPT_STATUS_1, WM831X_TCHPD_EINT, WM831X_TCHPD_EINT); -- cgit v1.2.3 From 34abeeb23575c9c25b8c582d582e5bcfcd1cf338 Mon Sep 17 00:00:00 2001 From: Rakesh Iyer Date: Wed, 27 Apr 2011 23:18:15 -0700 Subject: Input: tegra-kbc - add ghost key filter Add ghost key filtering support for the Nvidia Tegra matrix keyboard. Signed-off-by: Rakesh Iyer Reviewed-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/tegra-kbc.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c index 99ce9032d08c..5fb4b972f205 100644 --- a/drivers/input/keyboard/tegra-kbc.c +++ b/drivers/input/keyboard/tegra-kbc.c @@ -72,6 +72,7 @@ struct tegra_kbc { unsigned int repoll_dly; unsigned long cp_dly_jiffies; bool use_fn_map; + bool use_ghost_filter; const struct tegra_kbc_platform_data *pdata; unsigned short keycode[KBC_MAX_KEY * 2]; unsigned short current_keys[KBC_MAX_KPENT]; @@ -260,6 +261,8 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc) unsigned int num_down = 0; unsigned long flags; bool fn_keypress = false; + bool key_in_same_row = false; + bool key_in_same_col = false; spin_lock_irqsave(&kbc->lock, flags); for (i = 0; i < KBC_MAX_KPENT; i++) { @@ -284,6 +287,34 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc) val >>= 8; } + /* + * Matrix keyboard designs are prone to keyboard ghosting. + * Ghosting occurs if there are 3 keys such that - + * any 2 of the 3 keys share a row, and any 2 of them share a column. + * If so ignore the key presses for this iteration. + */ + if ((kbc->use_ghost_filter) && (num_down >= 3)) { + for (i = 0; i < num_down; i++) { + unsigned int j; + u8 curr_col = scancodes[i] & 0x07; + u8 curr_row = scancodes[i] >> KBC_ROW_SHIFT; + + /* + * Find 2 keys such that one key is in the same row + * and the other is in the same column as the i-th key. + */ + for (j = i + 1; j < num_down; j++) { + u8 col = scancodes[j] & 0x07; + u8 row = scancodes[j] >> KBC_ROW_SHIFT; + + if (col == curr_col) + key_in_same_col = true; + if (row == curr_row) + key_in_same_row = true; + } + } + } + /* * If the platform uses Fn keymaps, translate keys on a Fn keypress. * Function keycodes are KBC_MAX_KEY apart from the plain keycodes. @@ -297,6 +328,10 @@ static void tegra_kbc_report_keys(struct tegra_kbc *kbc) spin_unlock_irqrestore(&kbc->lock, flags); + /* Ignore the key presses for this iteration? */ + if (key_in_same_col && key_in_same_row) + return; + tegra_kbc_report_released_keys(kbc->idev, kbc->current_keys, kbc->num_pressed_keys, keycodes, num_down); @@ -652,6 +687,7 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev) input_dev->keycodemax *= 2; kbc->use_fn_map = pdata->use_fn_map; + kbc->use_ghost_filter = pdata->use_ghost_filter; keymap_data = pdata->keymap_data ?: &tegra_kbc_default_keymap_data; matrix_keypad_build_keymap(keymap_data, KBC_ROW_SHIFT, input_dev->keycode, input_dev->keybit); -- cgit v1.2.3 From e490ebdc3ce1a58e66aeacc485294a45710067f5 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 27 Apr 2011 23:20:16 -0700 Subject: Input: input-polldev - use system-wide freezable workqueue With introduction of concurrency-managed work queues there is rarely a point in creating private workqueues. Signed-off-by: Dmitry Torokhov --- drivers/input/input-polldev.c | 56 +++---------------------------------------- 1 file changed, 3 insertions(+), 53 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c index 3037842a60d8..b1aabde87523 100644 --- a/drivers/input/input-polldev.c +++ b/drivers/input/input-polldev.c @@ -13,6 +13,7 @@ #include #include #include +#include #include MODULE_AUTHOR("Dmitry Torokhov "); @@ -20,44 +21,6 @@ MODULE_DESCRIPTION("Generic implementation of a polled input device"); MODULE_LICENSE("GPL v2"); MODULE_VERSION("0.1"); -static DEFINE_MUTEX(polldev_mutex); -static int polldev_users; -static struct workqueue_struct *polldev_wq; - -static int input_polldev_start_workqueue(void) -{ - int retval; - - retval = mutex_lock_interruptible(&polldev_mutex); - if (retval) - return retval; - - if (!polldev_users) { - polldev_wq = create_singlethread_workqueue("ipolldevd"); - if (!polldev_wq) { - pr_err("failed to create ipolldevd workqueue\n"); - retval = -ENOMEM; - goto out; - } - } - - polldev_users++; - - out: - mutex_unlock(&polldev_mutex); - return retval; -} - -static void input_polldev_stop_workqueue(void) -{ - mutex_lock(&polldev_mutex); - - if (!--polldev_users) - destroy_workqueue(polldev_wq); - - mutex_unlock(&polldev_mutex); -} - static void input_polldev_queue_work(struct input_polled_dev *dev) { unsigned long delay; @@ -66,7 +29,7 @@ static void input_polldev_queue_work(struct input_polled_dev *dev) if (delay >= HZ) delay = round_jiffies_relative(delay); - queue_delayed_work(polldev_wq, &dev->work, delay); + queue_delayed_work(system_freezable_wq, &dev->work, delay); } static void input_polled_device_work(struct work_struct *work) @@ -81,18 +44,13 @@ static void input_polled_device_work(struct work_struct *work) static int input_open_polled_device(struct input_dev *input) { struct input_polled_dev *dev = input_get_drvdata(input); - int error; - - error = input_polldev_start_workqueue(); - if (error) - return error; if (dev->open) dev->open(dev); /* Only start polling if polling is enabled */ if (dev->poll_interval > 0) - queue_delayed_work(polldev_wq, &dev->work, 0); + queue_delayed_work(system_freezable_wq, &dev->work, 0); return 0; } @@ -102,13 +60,6 @@ static void input_close_polled_device(struct input_dev *input) struct input_polled_dev *dev = input_get_drvdata(input); cancel_delayed_work_sync(&dev->work); - /* - * Clean up work struct to remove references to the workqueue. - * It may be destroyed by the next call. This causes problems - * at next device open-close in case of poll_interval == 0. - */ - INIT_DELAYED_WORK(&dev->work, dev->work.work.func); - input_polldev_stop_workqueue(); if (dev->close) dev->close(dev); @@ -295,4 +246,3 @@ void input_unregister_polled_device(struct input_polled_dev *dev) input_unregister_device(dev->input); } EXPORT_SYMBOL(input_unregister_polled_device); - -- cgit v1.2.3 From b6d2a3e6ff6a7019b4a240b6bc4a4d74ce82d533 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 28 Apr 2011 09:32:44 -0700 Subject: Input: sh_keysc - implement runtime PM support Convert the KEYSC driver from MSTP bit control through a magic clock string to making use of Runtime PM. Also, update the system suspend/resume callbacks to drop the Runtime PM reference in the case of wakeup disabled. Signed-off-by: Magnus Damm Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/sh_keysc.c | 40 +++++++++++++++------------------------ 1 file changed, 15 insertions(+), 25 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c index d7dafd9425b6..429ac2b77438 100644 --- a/drivers/input/keyboard/sh_keysc.c +++ b/drivers/input/keyboard/sh_keysc.c @@ -20,7 +20,7 @@ #include #include #include -#include +#include #include #include @@ -37,7 +37,6 @@ static const struct { struct sh_keysc_priv { void __iomem *iomem_base; - struct clk *clk; DECLARE_BITMAP(last_keys, SH_KEYSC_MAXKEYS); struct input_dev *input; struct sh_keysc_info pdata; @@ -169,7 +168,6 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) struct sh_keysc_info *pdata; struct resource *res; struct input_dev *input; - char clk_name[8]; int i; int irq, error; @@ -210,19 +208,11 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) goto err1; } - snprintf(clk_name, sizeof(clk_name), "keysc%d", pdev->id); - priv->clk = clk_get(&pdev->dev, clk_name); - if (IS_ERR(priv->clk)) { - dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name); - error = PTR_ERR(priv->clk); - goto err2; - } - priv->input = input_allocate_device(); if (!priv->input) { dev_err(&pdev->dev, "failed to allocate input device\n"); error = -ENOMEM; - goto err3; + goto err2; } input = priv->input; @@ -244,7 +234,7 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) error = request_irq(irq, sh_keysc_isr, 0, pdev->name, pdev); if (error) { dev_err(&pdev->dev, "failed to request IRQ\n"); - goto err4; + goto err3; } for (i = 0; i < SH_KEYSC_MAXKEYS; i++) @@ -254,10 +244,11 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) error = input_register_device(input); if (error) { dev_err(&pdev->dev, "failed to register input device\n"); - goto err5; + goto err4; } - clk_enable(priv->clk); + pm_runtime_enable(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); sh_keysc_write(priv, KYCR1, (sh_keysc_mode[pdata->mode].kymd << 8) | pdata->scan_timing); @@ -267,12 +258,10 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) return 0; - err5: - free_irq(irq, pdev); err4: - input_free_device(input); + free_irq(irq, pdev); err3: - clk_put(priv->clk); + input_free_device(input); err2: iounmap(priv->iomem_base); err1: @@ -292,8 +281,8 @@ static int __devexit sh_keysc_remove(struct platform_device *pdev) free_irq(platform_get_irq(pdev, 0), pdev); iounmap(priv->iomem_base); - clk_disable(priv->clk); - clk_put(priv->clk); + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); platform_set_drvdata(pdev, NULL); kfree(priv); @@ -311,14 +300,13 @@ static int sh_keysc_suspend(struct device *dev) value = sh_keysc_read(priv, KYCR1); if (device_may_wakeup(dev)) { - value |= 0x80; + sh_keysc_write(priv, KYCR1, value | 0x80); enable_irq_wake(irq); } else { - value &= ~0x80; + sh_keysc_write(priv, KYCR1, value & ~0x80); + pm_runtime_put_sync(dev); } - sh_keysc_write(priv, KYCR1, value); - return 0; } @@ -329,6 +317,8 @@ static int sh_keysc_resume(struct device *dev) if (device_may_wakeup(dev)) disable_irq_wake(irq); + else + pm_runtime_get_sync(dev); return 0; } -- cgit v1.2.3 From 2dfb9a85ecb86f00b085d6fca7d4bb8dc6764710 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Thu, 28 Apr 2011 09:34:32 -0700 Subject: Input: sh_keysc - switch to threaded IRQ handler Update the KEYSC driver to make use of threaded IRQs with IRQF_ONESHOT to improve interrupt latency. The driver is using udelay() in the ISR to make sure the hardware has stabilized. Without using interrupt threads this delay may affect the latency of the rest of the system. Also pass dev_name() as string for /proc/interrupts. Signed-off-by: Magnus Damm Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/sh_keysc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c index 429ac2b77438..66eea50fccf5 100644 --- a/drivers/input/keyboard/sh_keysc.c +++ b/drivers/input/keyboard/sh_keysc.c @@ -231,7 +231,8 @@ static int __devinit sh_keysc_probe(struct platform_device *pdev) input->keycodesize = sizeof(pdata->keycodes[0]); input->keycodemax = ARRAY_SIZE(pdata->keycodes); - error = request_irq(irq, sh_keysc_isr, 0, pdev->name, pdev); + error = request_threaded_irq(irq, NULL, sh_keysc_isr, IRQF_ONESHOT, + dev_name(&pdev->dev), pdev); if (error) { dev_err(&pdev->dev, "failed to request IRQ\n"); goto err3; -- cgit v1.2.3 From 12d0cef701775f7f52667c33e57a5fe61fa49bd5 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Mon, 2 May 2011 23:09:19 -0700 Subject: Input: sh_keysc - make sh_keysc_device_driver static This variable is not used outside of the module so we should mark it as static. Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/sh_keysc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c index 66eea50fccf5..cb4f258477ce 100644 --- a/drivers/input/keyboard/sh_keysc.c +++ b/drivers/input/keyboard/sh_keysc.c @@ -329,7 +329,7 @@ static const struct dev_pm_ops sh_keysc_dev_pm_ops = { .resume = sh_keysc_resume, }; -struct platform_driver sh_keysc_device_driver = { +static struct platform_driver sh_keysc_device_driver = { .probe = sh_keysc_probe, .remove = __devexit_p(sh_keysc_remove), .driver = { -- cgit v1.2.3 From 4296f1ad5aa513500a87a4709579d31be8ba461f Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 3 May 2011 08:56:56 -0700 Subject: Input: h3600_ts_input - fix a leak of the IRQ during init failure Make sure we are passing the same cookie in all calls to request_irq() and free_irq(). Signed-off-by: Axel Lin Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/h3600_ts_input.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/h3600_ts_input.c b/drivers/input/touchscreen/h3600_ts_input.c index 45f93d0f5592..211811ae5525 100644 --- a/drivers/input/touchscreen/h3600_ts_input.c +++ b/drivers/input/touchscreen/h3600_ts_input.c @@ -396,14 +396,14 @@ static int h3600ts_connect(struct serio *serio, struct serio_driver *drv) set_GPIO_IRQ_edge(GPIO_BITSY_NPOWER_BUTTON, GPIO_RISING_EDGE); if (request_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, action_button_handler, - IRQF_SHARED | IRQF_DISABLED, "h3600_action", &ts->dev)) { + IRQF_SHARED | IRQF_DISABLED, "h3600_action", ts->dev)) { printk(KERN_ERR "h3600ts.c: Could not allocate Action Button IRQ!\n"); err = -EBUSY; goto fail1; } if (request_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, npower_button_handler, - IRQF_SHARED | IRQF_DISABLED, "h3600_suspend", &ts->dev)) { + IRQF_SHARED | IRQF_DISABLED, "h3600_suspend", ts->dev)) { printk(KERN_ERR "h3600ts.c: Could not allocate Power Button IRQ!\n"); err = -EBUSY; goto fail2; @@ -439,8 +439,8 @@ static void h3600ts_disconnect(struct serio *serio) { struct h3600_dev *ts = serio_get_drvdata(serio); - free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, &ts->dev); - free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, &ts->dev); + free_irq(IRQ_GPIO_BITSY_ACTION_BUTTON, ts->dev); + free_irq(IRQ_GPIO_BITSY_NPOWER_BUTTON, ts->dev); input_get_device(ts->dev); input_unregister_device(ts->dev); serio_close(serio); -- cgit v1.2.3 From 9cc7c80b57c66d08e67f297169783d1f07288066 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 4 May 2011 20:54:27 -0700 Subject: Input: sh_keysc - only compile PM code if PM is enabled Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/sh_keysc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c index cb4f258477ce..834cf98e7efb 100644 --- a/drivers/input/keyboard/sh_keysc.c +++ b/drivers/input/keyboard/sh_keysc.c @@ -291,6 +291,7 @@ static int __devexit sh_keysc_remove(struct platform_device *pdev) return 0; } +#if CONFIG_PM_SLEEP static int sh_keysc_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); @@ -323,11 +324,10 @@ static int sh_keysc_resume(struct device *dev) return 0; } +#endif -static const struct dev_pm_ops sh_keysc_dev_pm_ops = { - .suspend = sh_keysc_suspend, - .resume = sh_keysc_resume, -}; +static SIMPLE_DEV_PM_OPS(sh_keysc_dev_pm_ops, + sh_keysc_suspend, sh_keysc_resume); static struct platform_driver sh_keysc_device_driver = { .probe = sh_keysc_probe, -- cgit v1.2.3 From 7388754e0399d341e6d02fc7394b3727cad57371 Mon Sep 17 00:00:00 2001 From: Ville Syrjala Date: Wed, 4 May 2011 20:54:27 -0700 Subject: Input: ati_remote2 - return the error code from sysfs channel_mask store If the channel_mask setup fails when configuring it through sysfs, return the error code to the caller instead of claiming success. Signed-off-by: Ville Syrjala Signed-off-by: Dmitry Torokhov --- drivers/input/misc/ati_remote2.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c index 9ccdb82d869a..1de58e8a1b71 100644 --- a/drivers/input/misc/ati_remote2.c +++ b/drivers/input/misc/ati_remote2.c @@ -737,14 +737,17 @@ static ssize_t ati_remote2_store_channel_mask(struct device *dev, mutex_lock(&ati_remote2_mutex); - if (mask != ar2->channel_mask && !ati_remote2_setup(ar2, mask)) - ar2->channel_mask = mask; + if (mask != ar2->channel_mask) { + r = ati_remote2_setup(ar2, mask); + if (!r) + ar2->channel_mask = mask; + } mutex_unlock(&ati_remote2_mutex); usb_autopm_put_interface(ar2->intf[0]); - return count; + return r ? r : count; } static ssize_t ati_remote2_show_mode_mask(struct device *dev, -- cgit v1.2.3 From 1dbe7dada2d03d1313183d439068f1f951a91244 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Thu, 5 May 2011 08:40:14 -0700 Subject: Input: ads7846 - make transfer buffers DMA safe req.sample needs its own cacheline otherwise accessing req.msg fetches it in again. Note: This effect doesn't occur if the underlying SPI driver doesn't use DMA at all. Signed-off-by: Alexander Stein Acked-by: Jonathan Cameron Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ads7846.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index c24946f51256..ab51a8dbdb5a 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -281,17 +281,25 @@ struct ser_req { u8 command; u8 ref_off; u16 scratch; - __be16 sample; struct spi_message msg; struct spi_transfer xfer[6]; + /* + * DMA (thus cache coherency maintenance) requires the + * transfer buffers to live in their own cache lines. + */ + __be16 sample ____cacheline_aligned; }; struct ads7845_ser_req { u8 command[3]; u8 pwrdown[3]; - u8 sample[3]; struct spi_message msg; struct spi_transfer xfer[2]; + /* + * DMA (thus cache coherency maintenance) requires the + * transfer buffers to live in their own cache lines. + */ + u8 sample[3] ____cacheline_aligned; }; static int ads7846_read12_ser(struct device *dev, unsigned command) -- cgit v1.2.3 From 28350e330cfab46b60a1dbf763b678d859f9f3d9 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Thu, 5 May 2011 08:40:46 -0700 Subject: Input: ads7846 - remove unused variable from struct ads7845_ser_req Signed-off-by: Alexander Stein Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ads7846.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index ab51a8dbdb5a..1de1c19dad30 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -292,7 +292,6 @@ struct ser_req { struct ads7845_ser_req { u8 command[3]; - u8 pwrdown[3]; struct spi_message msg; struct spi_transfer xfer[2]; /* -- cgit v1.2.3 From baafb435372dd48e3854028aec669effae957c9e Mon Sep 17 00:00:00 2001 From: Rakesh Iyer Date: Wed, 11 May 2011 14:24:10 -0700 Subject: Input: tegra-kbc - change wakeup logic to be all or nothing Tegra hardware design cannot reliably support an arbitrary set of keys waking up the system. Modify wakeup logic so either any key wakes the system up or none will do. Signed-off-by: Rakesh Iyer Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/tegra-kbc.c | 24 ++---------------------- 1 file changed, 2 insertions(+), 22 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c index 5fb4b972f205..2b3b73ec6689 100644 --- a/drivers/input/keyboard/tegra-kbc.c +++ b/drivers/input/keyboard/tegra-kbc.c @@ -66,8 +66,6 @@ struct tegra_kbc { void __iomem *mmio; struct input_dev *idev; unsigned int irq; - unsigned int wake_enable_rows; - unsigned int wake_enable_cols; spinlock_t lock; unsigned int repoll_dly; unsigned long cp_dly_jiffies; @@ -418,21 +416,11 @@ static void tegra_kbc_setup_wakekeys(struct tegra_kbc *kbc, bool filter) int i; unsigned int rst_val; - BUG_ON(pdata->wake_cnt > KBC_MAX_KEY); - rst_val = (filter && pdata->wake_cnt) ? ~0 : 0; + /* Either mask all keys or none. */ + rst_val = (filter && !pdata->wakeup) ? ~0 : 0; for (i = 0; i < KBC_MAX_ROW; i++) writel(rst_val, kbc->mmio + KBC_ROW0_MASK_0 + i * 4); - - if (filter) { - for (i = 0; i < pdata->wake_cnt; i++) { - u32 val, addr; - addr = pdata->wake_cfg[i].row * 4 + KBC_ROW0_MASK_0; - val = readl(kbc->mmio + addr); - val &= ~(1 << pdata->wake_cfg[i].col); - writel(val, kbc->mmio + addr); - } - } } static void tegra_kbc_config_pins(struct tegra_kbc *kbc) @@ -594,7 +582,6 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev) struct resource *res; int irq; int err; - int i; int num_rows = 0; unsigned int debounce_cnt; unsigned int scan_time_rows; @@ -651,13 +638,6 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev) goto err_iounmap; } - kbc->wake_enable_rows = 0; - kbc->wake_enable_cols = 0; - for (i = 0; i < pdata->wake_cnt; i++) { - kbc->wake_enable_rows |= (1 << pdata->wake_cfg[i].row); - kbc->wake_enable_cols |= (1 << pdata->wake_cfg[i].col); - } - /* * The time delay between two consecutive reads of the FIFO is * the sum of the repeat time and the time taken for scanning -- cgit v1.2.3 From 521a8f5cb79d1017d00d26143227159674e3b79d Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Wed, 11 May 2011 16:33:50 -0700 Subject: Input: rotary-encoder - refactor and clean up Refactor state retrieval and event reporting in interrupt handler. Remove a few empty lines. Signed-off-by: Johan Hovold Reviewed-by: H Hartley Sweeten Acked-by: Daniel Mack Signed-off-by: Dmitry Torokhov --- drivers/input/misc/rotary_encoder.c | 77 +++++++++++++++++++++---------------- 1 file changed, 44 insertions(+), 33 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c index 7e64d01da2be..077b80bdca69 100644 --- a/drivers/input/misc/rotary_encoder.c +++ b/drivers/input/misc/rotary_encoder.c @@ -40,50 +40,62 @@ struct rotary_encoder { unsigned char dir; /* 0 - clockwise, 1 - CCW */ }; -static irqreturn_t rotary_encoder_irq(int irq, void *dev_id) +static int rotary_encoder_get_state(struct rotary_encoder_platform_data *pdata) { - struct rotary_encoder *encoder = dev_id; - struct rotary_encoder_platform_data *pdata = encoder->pdata; int a = !!gpio_get_value(pdata->gpio_a); int b = !!gpio_get_value(pdata->gpio_b); - int state; a ^= pdata->inverted_a; b ^= pdata->inverted_b; - state = (a << 1) | b; - switch (state) { + return ((a << 1) | b); +} - case 0x0: - if (!encoder->armed) - break; +static void rotary_encoder_report_event(struct rotary_encoder *encoder) +{ + struct rotary_encoder_platform_data *pdata = encoder->pdata; - if (pdata->relative_axis) { - input_report_rel(encoder->input, pdata->axis, - encoder->dir ? -1 : 1); - } else { - unsigned int pos = encoder->pos; - - if (encoder->dir) { - /* turning counter-clockwise */ - if (pdata->rollover) - pos += pdata->steps; - if (pos) - pos--; - } else { - /* turning clockwise */ - if (pdata->rollover || pos < pdata->steps) - pos++; - } + if (pdata->relative_axis) { + input_report_rel(encoder->input, + pdata->axis, encoder->dir ? -1 : 1); + } else { + unsigned int pos = encoder->pos; + + if (encoder->dir) { + /* turning counter-clockwise */ if (pdata->rollover) - pos %= pdata->steps; - encoder->pos = pos; - input_report_abs(encoder->input, pdata->axis, - encoder->pos); + pos += pdata->steps; + if (pos) + pos--; + } else { + /* turning clockwise */ + if (pdata->rollover || pos < pdata->steps) + pos++; } - input_sync(encoder->input); - encoder->armed = false; + if (pdata->rollover) + pos %= pdata->steps; + + encoder->pos = pos; + input_report_abs(encoder->input, pdata->axis, encoder->pos); + } + + input_sync(encoder->input); +} + +static irqreturn_t rotary_encoder_irq(int irq, void *dev_id) +{ + struct rotary_encoder *encoder = dev_id; + int state; + + state = rotary_encoder_get_state(encoder->pdata); + + switch (state) { + case 0x0: + if (encoder->armed) { + rotary_encoder_report_event(encoder); + encoder->armed = false; + } break; case 0x1: @@ -254,4 +266,3 @@ MODULE_ALIAS("platform:" DRV_NAME); MODULE_DESCRIPTION("GPIO rotary encoder driver"); MODULE_AUTHOR("Daniel Mack "); MODULE_LICENSE("GPL v2"); - -- cgit v1.2.3 From e70bdd41bd0ead91b4a43e9d656ac1569d7c8779 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Wed, 11 May 2011 16:35:30 -0700 Subject: Input: rotary-encoder - add support for half-period encoders Add support for encoders that have two detents per input signal period. Signed-off-by: Johan Hovold Acked-by: Daniel Mack Signed-off-by: Dmitry Torokhov --- drivers/input/misc/rotary_encoder.c | 42 ++++++++++++++++++++++++++++++++++--- 1 file changed, 39 insertions(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c index 077b80bdca69..2c8b84dd9dac 100644 --- a/drivers/input/misc/rotary_encoder.c +++ b/drivers/input/misc/rotary_encoder.c @@ -2,6 +2,7 @@ * rotary_encoder.c * * (c) 2009 Daniel Mack + * Copyright (C) 2011 Johan Hovold * * state machine code inspired by code from Tim Ruetz * @@ -38,6 +39,8 @@ struct rotary_encoder { bool armed; unsigned char dir; /* 0 - clockwise, 1 - CCW */ + + char last_stable; }; static int rotary_encoder_get_state(struct rotary_encoder_platform_data *pdata) @@ -112,11 +115,37 @@ static irqreturn_t rotary_encoder_irq(int irq, void *dev_id) return IRQ_HANDLED; } +static irqreturn_t rotary_encoder_half_period_irq(int irq, void *dev_id) +{ + struct rotary_encoder *encoder = dev_id; + int state; + + state = rotary_encoder_get_state(encoder->pdata); + + switch (state) { + case 0x00: + case 0x03: + if (state != encoder->last_stable) { + rotary_encoder_report_event(encoder); + encoder->last_stable = state; + } + break; + + case 0x01: + case 0x02: + encoder->dir = (encoder->last_stable + state) & 0x01; + break; + } + + return IRQ_HANDLED; +} + static int __devinit rotary_encoder_probe(struct platform_device *pdev) { struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data; struct rotary_encoder *encoder; struct input_dev *input; + irq_handler_t handler; int err; if (!pdata) { @@ -187,7 +216,14 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev) } /* request the IRQs */ - err = request_irq(encoder->irq_a, &rotary_encoder_irq, + if (pdata->half_period) { + handler = &rotary_encoder_half_period_irq; + encoder->last_stable = rotary_encoder_get_state(pdata); + } else { + handler = &rotary_encoder_irq; + } + + err = request_irq(encoder->irq_a, handler, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, DRV_NAME, encoder); if (err) { @@ -196,7 +232,7 @@ static int __devinit rotary_encoder_probe(struct platform_device *pdev) goto exit_free_gpio_b; } - err = request_irq(encoder->irq_b, &rotary_encoder_irq, + err = request_irq(encoder->irq_b, handler, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, DRV_NAME, encoder); if (err) { @@ -264,5 +300,5 @@ module_exit(rotary_encoder_exit); MODULE_ALIAS("platform:" DRV_NAME); MODULE_DESCRIPTION("GPIO rotary encoder driver"); -MODULE_AUTHOR("Daniel Mack "); +MODULE_AUTHOR("Daniel Mack , Johan Hovold"); MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From ebcaaad9d5e8fd284b8dcf25a24999420f0f56d8 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Wed, 11 May 2011 16:24:08 -0700 Subject: Input: ads7846 - add possibility to use external vref on ads7846 Just set vref_mv in your platform config to use external vref. Otherwise the internal one is used. Signed-off-by: Alexander Stein Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ads7846.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index c24946f51256..e4ee43e159d2 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -109,6 +109,7 @@ struct ads7846 { u16 pressure_max; bool swap_xy; + bool use_internal; struct ads7846_packet *packet; @@ -300,7 +301,6 @@ static int ads7846_read12_ser(struct device *dev, unsigned command) struct ads7846 *ts = dev_get_drvdata(dev); struct ser_req *req; int status; - int use_internal; req = kzalloc(sizeof *req, GFP_KERNEL); if (!req) @@ -308,11 +308,8 @@ static int ads7846_read12_ser(struct device *dev, unsigned command) spi_message_init(&req->msg); - /* FIXME boards with ads7846 might use external vref instead ... */ - use_internal = (ts->model == 7846); - /* maybe turn on internal vREF, and let it settle */ - if (use_internal) { + if (ts->use_internal) { req->ref_on = REF_ON; req->xfer[0].tx_buf = &req->ref_on; req->xfer[0].len = 1; @@ -324,8 +321,14 @@ static int ads7846_read12_ser(struct device *dev, unsigned command) /* for 1uF, settle for 800 usec; no cap, 100 usec. */ req->xfer[1].delay_usecs = ts->vref_delay_usecs; spi_message_add_tail(&req->xfer[1], &req->msg); + + /* Enable reference voltage */ + command |= ADS_PD10_REF_ON; } + /* Enable ADC in every case */ + command |= ADS_PD10_ADC_ON; + /* take sample */ req->command = (u8) command; req->xfer[2].tx_buf = &req->command; @@ -409,7 +412,7 @@ name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \ { \ struct ads7846 *ts = dev_get_drvdata(dev); \ ssize_t v = ads7846_read12_ser(dev, \ - READ_12BIT_SER(var) | ADS_PD10_ALL_ON); \ + READ_12BIT_SER(var)); \ if (v < 0) \ return v; \ return sprintf(buf, "%u\n", adjust(ts, v)); \ @@ -502,6 +505,7 @@ static int ads784x_hwmon_register(struct spi_device *spi, struct ads7846 *ts) if (!ts->vref_mv) { dev_dbg(&spi->dev, "assuming 2.5V internal vREF\n"); ts->vref_mv = 2500; + ts->use_internal = true; } break; case 7845: @@ -1333,8 +1337,7 @@ static int __devinit ads7846_probe(struct spi_device *spi) if (ts->model == 7845) ads7845_read12_ser(&spi->dev, PWRDOWN); else - (void) ads7846_read12_ser(&spi->dev, - READ_12BIT_SER(vaux) | ADS_PD10_ALL_ON); + (void) ads7846_read12_ser(&spi->dev, READ_12BIT_SER(vaux)); err = sysfs_create_group(&spi->dev.kobj, &ads784x_attr_group); if (err) -- cgit v1.2.3 From 1201e7e67634624aec89317cf308cd0d3d8d4770 Mon Sep 17 00:00:00 2001 From: Igor Grinberg Date: Wed, 11 May 2011 15:45:05 -0700 Subject: Input: ads7846 - fix gpio_pendown configuration The pendown gpio was requested but not configured for input. Configure it for input. Signed-off-by: Igor Grinberg Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ads7846.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index e4ee43e159d2..beb754ff931b 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -966,6 +966,13 @@ static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads784 pdata->gpio_pendown); return err; } + err = gpio_direction_input(pdata->gpio_pendown); + if (err) { + dev_err(&spi->dev, "failed to setup pendown GPIO%d\n", + pdata->gpio_pendown); + gpio_free(pdata->gpio_pendown); + return err; + } ts->gpio_pendown = pdata->gpio_pendown; -- cgit v1.2.3 From 7cbbb758d3c93b24b45b169af55440d2e7d5b7f6 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 11 May 2011 15:38:10 -0700 Subject: Input: remove useless synchronize_rcu() calls There is no need to call synchronize_rcu() after a list insertion, or a NULL->ptr assignment. However, the reverse operations do need this call. Signed-off-by: Eric Dumazet Signed-off-by: Dmitry Torokhov --- drivers/input/evdev.c | 2 -- drivers/input/input.c | 1 - drivers/input/joydev.c | 1 - drivers/input/mousedev.c | 1 - 4 files changed, 5 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 75c4e8683033..be0921ef6b52 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -164,7 +164,6 @@ static int evdev_grab(struct evdev *evdev, struct evdev_client *client) return error; rcu_assign_pointer(evdev->grab, client); - synchronize_rcu(); return 0; } @@ -187,7 +186,6 @@ static void evdev_attach_client(struct evdev *evdev, spin_lock(&evdev->client_lock); list_add_tail_rcu(&client->node, &evdev->client_list); spin_unlock(&evdev->client_lock); - synchronize_rcu(); } static void evdev_detach_client(struct evdev *evdev, diff --git a/drivers/input/input.c b/drivers/input/input.c index ebbceedc92f4..75e11c7b70fd 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -451,7 +451,6 @@ int input_grab_device(struct input_handle *handle) } rcu_assign_pointer(dev->grab, handle); - synchronize_rcu(); out: mutex_unlock(&dev->mutex); diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c index 5688b5c88f24..c24ec2d5f926 100644 --- a/drivers/input/joydev.c +++ b/drivers/input/joydev.c @@ -180,7 +180,6 @@ static void joydev_attach_client(struct joydev *joydev, spin_lock(&joydev->client_lock); list_add_tail_rcu(&client->node, &joydev->client_list); spin_unlock(&joydev->client_lock); - synchronize_rcu(); } static void joydev_detach_client(struct joydev *joydev, diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c index 7630273e9474..257e033986e4 100644 --- a/drivers/input/mousedev.c +++ b/drivers/input/mousedev.c @@ -508,7 +508,6 @@ static void mousedev_attach_client(struct mousedev *mousedev, spin_lock(&mousedev->client_lock); list_add_tail_rcu(&client->node, &mousedev->client_list); spin_unlock(&mousedev->client_lock); - synchronize_rcu(); } static void mousedev_detach_client(struct mousedev *mousedev, -- cgit v1.2.3 From 36682b81de32090f5c9fac165e71ab8939aab8c0 Mon Sep 17 00:00:00 2001 From: Zhang Jiejing Date: Wed, 11 May 2011 14:32:01 -0700 Subject: Input: add driver FSL MPR121 capacitive touch sensor This patch adds basic support for Freescale MPR121 capacitive touch sensor. It's an i2c controller with up to 12 capacitance sensing inputs. Product information (data sheet, application notes) can be found here: http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPR121 Signed-off-by: Zhang Jiejing Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/Kconfig | 12 ++ drivers/input/keyboard/Makefile | 1 + drivers/input/keyboard/mpr121_touchkey.c | 339 +++++++++++++++++++++++++++++++ 3 files changed, 352 insertions(+) create mode 100644 drivers/input/keyboard/mpr121_touchkey.c (limited to 'drivers/input') diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index b16bed038f72..dec090ac7d31 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -325,6 +325,18 @@ config KEYBOARD_MCS To compile this driver as a module, choose M here: the module will be called mcs_touchkey. +config KEYBOARD_MPR121 + tristate "Freescale MPR121 Touchkey" + depends on I2C + help + Say Y here if you have Freescale MPR121 touchkey controller + chip in your system. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called mpr121_touchkey. + config KEYBOARD_IMX tristate "IMX keypad support" depends on ARCH_MXC diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index 878e6c20deb0..b45361009f2e 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o obj-$(CONFIG_KEYBOARD_MATRIX) += matrix_keypad.o obj-$(CONFIG_KEYBOARD_MAX7359) += max7359_keypad.o obj-$(CONFIG_KEYBOARD_MCS) += mcs_touchkey.o +obj-$(CONFIG_KEYBOARD_MPR121) += mpr121_touchkey.o obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o obj-$(CONFIG_KEYBOARD_NOMADIK) += nomadik-ske-keypad.o obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o diff --git a/drivers/input/keyboard/mpr121_touchkey.c b/drivers/input/keyboard/mpr121_touchkey.c new file mode 100644 index 000000000000..0a9e81194888 --- /dev/null +++ b/drivers/input/keyboard/mpr121_touchkey.c @@ -0,0 +1,339 @@ +/* + * Touchkey driver for Freescale MPR121 Controllor + * + * Copyright (C) 2011 Freescale Semiconductor, Inc. + * Author: Zhang Jiejing + * + * Based on mcs_touchkey.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Register definitions */ +#define ELE_TOUCH_STATUS_0_ADDR 0x0 +#define ELE_TOUCH_STATUS_1_ADDR 0X1 +#define MHD_RISING_ADDR 0x2b +#define NHD_RISING_ADDR 0x2c +#define NCL_RISING_ADDR 0x2d +#define FDL_RISING_ADDR 0x2e +#define MHD_FALLING_ADDR 0x2f +#define NHD_FALLING_ADDR 0x30 +#define NCL_FALLING_ADDR 0x31 +#define FDL_FALLING_ADDR 0x32 +#define ELE0_TOUCH_THRESHOLD_ADDR 0x41 +#define ELE0_RELEASE_THRESHOLD_ADDR 0x42 +#define AFE_CONF_ADDR 0x5c +#define FILTER_CONF_ADDR 0x5d + +/* + * ELECTRODE_CONF_ADDR: This register configures the number of + * enabled capacitance sensing inputs and its run/suspend mode. + */ +#define ELECTRODE_CONF_ADDR 0x5e +#define AUTO_CONFIG_CTRL_ADDR 0x7b +#define AUTO_CONFIG_USL_ADDR 0x7d +#define AUTO_CONFIG_LSL_ADDR 0x7e +#define AUTO_CONFIG_TL_ADDR 0x7f + +/* Threshold of touch/release trigger */ +#define TOUCH_THRESHOLD 0x0f +#define RELEASE_THRESHOLD 0x0a +/* Masks for touch and release triggers */ +#define TOUCH_STATUS_MASK 0xfff +/* MPR121 has 12 keys */ +#define MPR121_MAX_KEY_COUNT 12 + +struct mpr121_touchkey { + struct i2c_client *client; + struct input_dev *input_dev; + unsigned int key_val; + unsigned int statusbits; + unsigned int keycount; + u16 keycodes[MPR121_MAX_KEY_COUNT]; +}; + +struct mpr121_init_register { + int addr; + u8 val; +}; + +static const struct mpr121_init_register init_reg_table[] __devinitconst = { + { MHD_RISING_ADDR, 0x1 }, + { NHD_RISING_ADDR, 0x1 }, + { MHD_FALLING_ADDR, 0x1 }, + { NHD_FALLING_ADDR, 0x1 }, + { NCL_FALLING_ADDR, 0xff }, + { FDL_FALLING_ADDR, 0x02 }, + { FILTER_CONF_ADDR, 0x04 }, + { AFE_CONF_ADDR, 0x0b }, + { AUTO_CONFIG_CTRL_ADDR, 0x0b }, +}; + +static irqreturn_t mpr_touchkey_interrupt(int irq, void *dev_id) +{ + struct mpr121_touchkey *mpr121 = dev_id; + struct i2c_client *client = mpr121->client; + struct input_dev *input = mpr121->input_dev; + unsigned int key_num, key_val, pressed; + int reg; + + reg = i2c_smbus_read_byte_data(client, ELE_TOUCH_STATUS_1_ADDR); + if (reg < 0) { + dev_err(&client->dev, "i2c read error [%d]\n", reg); + goto out; + } + + reg <<= 8; + reg |= i2c_smbus_read_byte_data(client, ELE_TOUCH_STATUS_0_ADDR); + if (reg < 0) { + dev_err(&client->dev, "i2c read error [%d]\n", reg); + goto out; + } + + reg &= TOUCH_STATUS_MASK; + /* use old press bit to figure out which bit changed */ + key_num = ffs(reg ^ mpr121->statusbits) - 1; + pressed = reg & (1 << key_num); + mpr121->statusbits = reg; + + key_val = mpr121->keycodes[key_num]; + + input_event(input, EV_MSC, MSC_SCAN, key_num); + input_report_key(input, key_val, pressed); + input_sync(input); + + dev_dbg(&client->dev, "key %d %d %s\n", key_num, key_val, + pressed ? "pressed" : "released"); + +out: + return IRQ_HANDLED; +} + +static int __devinit mpr121_phys_init(const struct mpr121_platform_data *pdata, + struct mpr121_touchkey *mpr121, + struct i2c_client *client) +{ + const struct mpr121_init_register *reg; + unsigned char usl, lsl, tl; + int i, t, vdd, ret; + + /* Set up touch/release threshold for ele0-ele11 */ + for (i = 0; i <= MPR121_MAX_KEY_COUNT; i++) { + t = ELE0_TOUCH_THRESHOLD_ADDR + (i * 2); + ret = i2c_smbus_write_byte_data(client, t, TOUCH_THRESHOLD); + if (ret < 0) + goto err_i2c_write; + ret = i2c_smbus_write_byte_data(client, t + 1, + RELEASE_THRESHOLD); + if (ret < 0) + goto err_i2c_write; + } + + /* Set up init register */ + for (i = 0; i < ARRAY_SIZE(init_reg_table); i++) { + reg = &init_reg_table[i]; + ret = i2c_smbus_write_byte_data(client, reg->addr, reg->val); + if (ret < 0) + goto err_i2c_write; + } + + + /* + * Capacitance on sensing input varies and needs to be compensated. + * The internal MPR121-auto-configuration can do this if it's + * registers are set properly (based on pdata->vdd_uv). + */ + vdd = pdata->vdd_uv / 1000; + usl = ((vdd - 700) * 256) / vdd; + lsl = (usl * 65) / 100; + tl = (usl * 90) / 100; + ret = i2c_smbus_write_byte_data(client, AUTO_CONFIG_USL_ADDR, usl); + ret |= i2c_smbus_write_byte_data(client, AUTO_CONFIG_LSL_ADDR, lsl); + ret |= i2c_smbus_write_byte_data(client, AUTO_CONFIG_TL_ADDR, tl); + ret |= i2c_smbus_write_byte_data(client, ELECTRODE_CONF_ADDR, + mpr121->keycount); + if (ret != 0) + goto err_i2c_write; + + dev_dbg(&client->dev, "set up with %x keys.\n", mpr121->keycount); + + return 0; + +err_i2c_write: + dev_err(&client->dev, "i2c write error: %d\n", ret); + return ret; +} + +static int __devinit mpr_touchkey_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + const struct mpr121_platform_data *pdata = client->dev.platform_data; + struct mpr121_touchkey *mpr121; + struct input_dev *input_dev; + int error; + int i; + + if (!pdata) { + dev_err(&client->dev, "no platform data defined\n"); + return -EINVAL; + } + + if (!pdata->keymap || !pdata->keymap_size) { + dev_err(&client->dev, "missing keymap data\n"); + return -EINVAL; + } + + if (pdata->keymap_size > MPR121_MAX_KEY_COUNT) { + dev_err(&client->dev, "too many keys defined\n"); + return -EINVAL; + } + + if (!client->irq) { + dev_err(&client->dev, "irq number should not be zero\n"); + return -EINVAL; + } + + mpr121 = kzalloc(sizeof(struct mpr121_touchkey), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!mpr121 || !input_dev) { + dev_err(&client->dev, "Failed to allocate memory\n"); + error = -ENOMEM; + goto err_free_mem; + } + + mpr121->client = client; + mpr121->input_dev = input_dev; + mpr121->keycount = pdata->keymap_size; + + input_dev->name = "Freescale MPR121 Touchkey"; + input_dev->id.bustype = BUS_I2C; + input_dev->dev.parent = &client->dev; + input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); + + input_dev->keycode = mpr121->keycodes; + input_dev->keycodesize = sizeof(mpr121->keycodes[0]); + input_dev->keycodemax = mpr121->keycount; + + for (i = 0; i < pdata->keymap_size; i++) { + input_set_capability(input_dev, EV_KEY, pdata->keymap[i]); + mpr121->keycodes[i] = pdata->keymap[i]; + } + + error = mpr121_phys_init(pdata, mpr121, client); + if (error) { + dev_err(&client->dev, "Failed to init register\n"); + goto err_free_mem; + } + + error = request_threaded_irq(client->irq, NULL, + mpr_touchkey_interrupt, + IRQF_TRIGGER_FALLING, + client->dev.driver->name, mpr121); + if (error) { + dev_err(&client->dev, "Failed to register interrupt\n"); + goto err_free_mem; + } + + error = input_register_device(input_dev); + if (error) + goto err_free_irq; + + i2c_set_clientdata(client, mpr121); + device_init_wakeup(&client->dev, pdata->wakeup); + + return 0; + +err_free_irq: + free_irq(client->irq, mpr121); +err_free_mem: + input_free_device(input_dev); + kfree(mpr121); + return error; +} + +static int __devexit mpr_touchkey_remove(struct i2c_client *client) +{ + struct mpr121_touchkey *mpr121 = i2c_get_clientdata(client); + + free_irq(client->irq, mpr121); + input_unregister_device(mpr121->input_dev); + kfree(mpr121); + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int mpr_suspend(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + + if (device_may_wakeup(&client->dev)) + enable_irq_wake(client->irq); + + i2c_smbus_write_byte_data(client, ELECTRODE_CONF_ADDR, 0x00); + + return 0; +} + +static int mpr_resume(struct device *dev) +{ + struct i2c_client *client = to_i2c_client(dev); + struct mpr121_touchkey *mpr121 = i2c_get_clientdata(client); + + if (device_may_wakeup(&client->dev)) + disable_irq_wake(client->irq); + + i2c_smbus_write_byte_data(client, ELECTRODE_CONF_ADDR, + mpr121->keycount); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(mpr121_touchkey_pm_ops, mpr_suspend, mpr_resume); + +static const struct i2c_device_id mpr121_id[] = { + { "mpr121_touchkey", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, mpr121_id); + +static struct i2c_driver mpr_touchkey_driver = { + .driver = { + .name = "mpr121", + .owner = THIS_MODULE, + .pm = &mpr121_touchkey_pm_ops, + }, + .id_table = mpr121_id, + .probe = mpr_touchkey_probe, + .remove = __devexit_p(mpr_touchkey_remove), +}; + +static int __init mpr_touchkey_init(void) +{ + return i2c_add_driver(&mpr_touchkey_driver); +} +module_init(mpr_touchkey_init); + +static void __exit mpr_touchkey_exit(void) +{ + i2c_del_driver(&mpr_touchkey_driver); +} +module_exit(mpr_touchkey_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Zhang Jiejing "); +MODULE_DESCRIPTION("Touch Key driver for Freescale MPR121 Chip"); -- cgit v1.2.3 From 18aecc2b645bbb07851b196452a2af314222069b Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Wed, 4 May 2011 14:38:26 -0400 Subject: arch/tile: finish enabling support for TILE-Gx 64-bit chip This support was partially present in the existing code (look for "__tilegx__" ifdefs) but with this change you can build a working kernel using the TILE-Gx toolchain and ARCH=tilegx. Most of these files are new, generally adding a foo_64.c file where previously there was just a foo_32.c file. The ARCH=tilegx directive redirects to arch/tile, not arch/tilegx, using the existing SRCARCH mechanism in the top-level Makefile. Changes to existing files: - and changed to factor the include of in the common header. - and arch/tile/kernel/compat.c changed to remove the "const" markers I had put on compat_sys_execve() when trying to match some recent similar changes to the non-compat execve. It turns out the compat version wasn't "upgraded" to use const. - and were previously included accidentally, with the 32-bit contents. Now they have the proper 64-bit contents. Finally, I had to hack the existing hacky drivers/input/input-compat.h to add yet another "#ifdef" for INPUT_COMPAT_TEST (same as x86_64). Signed-off-by: Chris Metcalf Acked-by: Dmitry Torokhov [drivers/input] --- drivers/input/input-compat.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/input-compat.h b/drivers/input/input-compat.h index 4d8ea32e8a00..22be27b424de 100644 --- a/drivers/input/input-compat.h +++ b/drivers/input/input-compat.h @@ -19,7 +19,7 @@ /* Note to the author of this code: did it ever occur to you why the ifdefs are needed? Think about it again. -AK */ -#ifdef CONFIG_X86_64 +#if defined(CONFIG_X86_64) || defined(CONFIG_TILE) # define INPUT_COMPAT_TEST is_compat_task() #elif defined(CONFIG_S390) # define INPUT_COMPAT_TEST test_thread_flag(TIF_31BIT) -- cgit v1.2.3 From 215ef98677c3e43cefd2159d76543f368a7f87b9 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 14 May 2011 22:22:38 -0700 Subject: Input: atmel_tsadcc - correct call to input_free_device This error handling code can be reached before ts_dev->input is initialized, so it is safer to always use the original name, input_dev. Signed-off-by: Julia Lawall Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/atmel_tsadcc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/atmel_tsadcc.c b/drivers/input/touchscreen/atmel_tsadcc.c index 3d9b5166ebe9..432c69be6ac6 100644 --- a/drivers/input/touchscreen/atmel_tsadcc.c +++ b/drivers/input/touchscreen/atmel_tsadcc.c @@ -317,7 +317,7 @@ err_unmap_regs: err_release_mem: release_mem_region(res->start, resource_size(res)); err_free_dev: - input_free_device(ts_dev->input); + input_free_device(input_dev); err_free_mem: kfree(ts_dev); return err; -- cgit v1.2.3 From f941c705f68fa62f694678bf2efde64dfb9962bb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=89ric=20Piel?= Date: Mon, 16 May 2011 22:45:54 -0700 Subject: Input: elantech - export pressure and width when supported MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Using the info of the Dell/Ubuntu driver, described in the protocol document, report both width and pressure when pressing 1 and 3 fingers, for the versions of the touchpad which support it. Signed-off-by: Éric Piel Reviewed-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/elantech.c | 23 ++++++++++++++++++++++- drivers/input/mouse/elantech.h | 6 ++++++ 2 files changed, 28 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 04d9bf320a4f..5cde11f4ef5e 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -248,9 +248,10 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse) */ static void elantech_report_absolute_v2(struct psmouse *psmouse) { + struct elantech_data *etd = psmouse->private; struct input_dev *dev = psmouse->dev; unsigned char *packet = psmouse->packet; - int fingers, x1, y1, x2, y2; + int fingers, x1, y1, x2, y2, width = 0, pres = 0; /* byte 0: n1 n0 . . . . R L */ fingers = (packet[0] & 0xc0) >> 6; @@ -278,6 +279,8 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) */ input_report_abs(dev, ABS_Y, ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5])); + pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4); + width = ((packet[0] & 0x30) >> 2) | ((packet[3] & 0x30) >> 4); break; case 2: @@ -311,6 +314,10 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) input_report_abs(dev, ABS_HAT0Y, y1); input_report_abs(dev, ABS_HAT1X, x2); input_report_abs(dev, ABS_HAT1Y, y2); + + /* Unknown so just report sensible values */ + pres = 127; + width = 7; break; } @@ -320,6 +327,10 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) input_report_key(dev, BTN_TOOL_QUADTAP, fingers == 4); input_report_key(dev, BTN_LEFT, packet[0] & 0x01); input_report_key(dev, BTN_RIGHT, packet[0] & 0x02); + if (etd->reports_pressure) { + input_report_abs(dev, ABS_PRESSURE, pres); + input_report_abs(dev, ABS_TOOL_WIDTH, width); + } input_sync(dev); } @@ -478,6 +489,12 @@ static void elantech_set_input_params(struct psmouse *psmouse) __set_bit(BTN_TOOL_QUADTAP, dev->keybit); input_set_abs_params(dev, ABS_X, ETP_XMIN_V2, ETP_XMAX_V2, 0, 0); input_set_abs_params(dev, ABS_Y, ETP_YMIN_V2, ETP_YMAX_V2, 0, 0); + if (etd->reports_pressure) { + input_set_abs_params(dev, ABS_PRESSURE, ETP_PMIN_V2, + ETP_PMAX_V2, 0, 0); + input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2, + ETP_WMAX_V2, 0, 0); + } input_set_abs_params(dev, ABS_HAT0X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0); input_set_abs_params(dev, ABS_HAT0Y, ETP_2FT_YMIN, ETP_2FT_YMAX, 0, 0); input_set_abs_params(dev, ABS_HAT1X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0); @@ -725,6 +742,10 @@ int elantech_init(struct psmouse *psmouse) etd->debug = 1; /* Don't know how to do parity checking for version 2 */ etd->paritycheck = 0; + + if (etd->fw_version >= 0x020800) + etd->reports_pressure = true; + } else { etd->hw_version = 1; etd->paritycheck = 1; diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h index aa4aac5d2198..fabb2b99615c 100644 --- a/drivers/input/mouse/elantech.h +++ b/drivers/input/mouse/elantech.h @@ -77,6 +77,11 @@ #define ETP_YMIN_V2 ( 0 + ETP_EDGE_FUZZ_V2) #define ETP_YMAX_V2 ( 768 - ETP_EDGE_FUZZ_V2) +#define ETP_PMIN_V2 0 +#define ETP_PMAX_V2 255 +#define ETP_WMIN_V2 0 +#define ETP_WMAX_V2 15 + /* * For two finger touches the coordinate of each finger gets reported * separately but with reduced resolution. @@ -102,6 +107,7 @@ struct elantech_data { unsigned char capabilities; bool paritycheck; bool jumpy_cursor; + bool reports_pressure; unsigned char hw_version; unsigned int fw_version; unsigned int single_finger_reports; -- cgit v1.2.3 From 89eec4d71e0a4e47a2f12a08992ada7500ea78a0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=89ric=20Piel?= Date: Mon, 16 May 2011 22:45:54 -0700 Subject: Input: elantech - report multitouch with proper ABS_MT messages MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Multitouch info was reported only via a old protocol used by the proprietary X driver from elantech. Let's report the multitouch info also following the official MT protocol. It's semi-mt because the device only reports the lowest/highest coordinates. This was done following the multi-touch-protocol.txt documentation, and inspired by the bcm5974 and elantech implementations. Testing was light as there is not many applications using this protocol yet, but the X synaptics driver didn't complain and the X multitouch driver behaved correctly. Signed-off-by: Éric Piel Reviewed-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/elantech.c | 39 ++++++++++++++++++++++++++++++++++----- 1 file changed, 34 insertions(+), 5 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 5cde11f4ef5e..32648b34b115 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include "psmouse.h" @@ -242,6 +243,27 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse) input_sync(dev); } +static void elantech_set_slot(struct input_dev *dev, int slot, bool active, + unsigned int x, unsigned int y) +{ + input_mt_slot(dev, slot); + input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); + if (active) { + input_report_abs(dev, ABS_MT_POSITION_X, x); + input_report_abs(dev, ABS_MT_POSITION_Y, y); + } +} + +/* x1 < x2 and y1 < y2 when two fingers, x = y = 0 when not pressed */ +static void elantech_report_semi_mt_data(struct input_dev *dev, + unsigned int num_fingers, + unsigned int x1, unsigned int y1, + unsigned int x2, unsigned int y2) +{ + elantech_set_slot(dev, 0, num_fingers != 0, x1, y1); + elantech_set_slot(dev, 1, num_fingers == 2, x2, y2); +} + /* * Interpret complete data packets and report absolute mode input events for * hardware version 2. (6 byte packets) @@ -251,7 +273,7 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) struct elantech_data *etd = psmouse->private; struct input_dev *dev = psmouse->dev; unsigned char *packet = psmouse->packet; - int fingers, x1, y1, x2, y2, width = 0, pres = 0; + unsigned int fingers, x1 = 0, y1 = 0, x2 = 0, y2 = 0, width = 0, pres = 0; /* byte 0: n1 n0 . . . . R L */ fingers = (packet[0] & 0xc0) >> 6; @@ -271,14 +293,16 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) * byte 1: . . . . . x10 x9 x8 * byte 2: x7 x6 x5 x4 x4 x2 x1 x0 */ - input_report_abs(dev, ABS_X, - ((packet[1] & 0x07) << 8) | packet[2]); + x1 = ((packet[1] & 0x07) << 8) | packet[2]; /* * byte 4: . . . . . . y9 y8 * byte 5: y7 y6 y5 y4 y3 y2 y1 y0 */ - input_report_abs(dev, ABS_Y, - ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5])); + y1 = ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5]); + + input_report_abs(dev, ABS_X, x1); + input_report_abs(dev, ABS_Y, y1); + pres = (packet[1] & 0xf0) | ((packet[4] & 0xf0) >> 4); width = ((packet[0] & 0x30) >> 2) | ((packet[3] & 0x30) >> 4); break; @@ -321,6 +345,7 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) break; } + elantech_report_semi_mt_data(dev, fingers, x1, y1, x2, y2); input_report_key(dev, BTN_TOOL_FINGER, fingers == 1); input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2); input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3); @@ -495,6 +520,10 @@ static void elantech_set_input_params(struct psmouse *psmouse) input_set_abs_params(dev, ABS_TOOL_WIDTH, ETP_WMIN_V2, ETP_WMAX_V2, 0, 0); } + __set_bit(INPUT_PROP_SEMI_MT, dev->propbit); + input_mt_init_slots(dev, 2); + input_set_abs_params(dev, ABS_MT_POSITION_X, ETP_XMIN_V2, ETP_XMAX_V2, 0, 0); + input_set_abs_params(dev, ABS_MT_POSITION_Y, ETP_YMIN_V2, ETP_YMAX_V2, 0, 0); input_set_abs_params(dev, ABS_HAT0X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0); input_set_abs_params(dev, ABS_HAT0Y, ETP_2FT_YMIN, ETP_2FT_YMAX, 0, 0); input_set_abs_params(dev, ABS_HAT1X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0); -- cgit v1.2.3 From 9cb6cfae4e792d9f92612dd57ee1e3ff218f17a6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=89ric=20Piel?= Date: Mon, 16 May 2011 22:45:54 -0700 Subject: Input: elantech - remove support for proprietary X driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Apparently somewhere someone had a proprietary X driver. To get the multitouch info, it uses some hack on the normal API instead of using the multitouch protocol. Now that the multitouch info is transmitted correctly it makes not much sense to keep it. Especially because it's impossible to find this proprietary X driver anywhere, so the number of users must be very low. Signed-off-by: Éric Piel Reviewed-by: Henrik Rydberg Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/elantech.c | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 32648b34b115..32503565faf9 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -330,14 +330,6 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) */ input_report_abs(dev, ABS_X, x1 << 2); input_report_abs(dev, ABS_Y, y1 << 2); - /* - * For compatibility with the proprietary X Elantech driver - * report both coordinates as hat coordinates - */ - input_report_abs(dev, ABS_HAT0X, x1); - input_report_abs(dev, ABS_HAT0Y, y1); - input_report_abs(dev, ABS_HAT1X, x2); - input_report_abs(dev, ABS_HAT1Y, y2); /* Unknown so just report sensible values */ pres = 127; @@ -524,10 +516,6 @@ static void elantech_set_input_params(struct psmouse *psmouse) input_mt_init_slots(dev, 2); input_set_abs_params(dev, ABS_MT_POSITION_X, ETP_XMIN_V2, ETP_XMAX_V2, 0, 0); input_set_abs_params(dev, ABS_MT_POSITION_Y, ETP_YMIN_V2, ETP_YMAX_V2, 0, 0); - input_set_abs_params(dev, ABS_HAT0X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0); - input_set_abs_params(dev, ABS_HAT0Y, ETP_2FT_YMIN, ETP_2FT_YMAX, 0, 0); - input_set_abs_params(dev, ABS_HAT1X, ETP_2FT_XMIN, ETP_2FT_XMAX, 0, 0); - input_set_abs_params(dev, ABS_HAT1Y, ETP_2FT_YMIN, ETP_2FT_YMAX, 0, 0); break; } } -- cgit v1.2.3 From dc5f4f5e9a3434bfe925f05db9db2908fbab771f Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 16 May 2011 23:17:11 -0700 Subject: Input: ad714x - fix up input configuration Add missing input name and set up parent devices so input devices will show in proper places in sysfs tree. Signed-off-by: Michael Hennerich Tested-by: Jean-Francois Dagenais Signed-off-by: Dmitry Torokhov --- drivers/input/misc/ad714x.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/input') diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c index c431d09e401a..2ceb0289a757 100644 --- a/drivers/input/misc/ad714x.c +++ b/drivers/input/misc/ad714x.c @@ -1149,6 +1149,8 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, input[alloc_idx]->id.bustype = bus_type; input[alloc_idx]->id.product = ad714x->product; input[alloc_idx]->id.version = ad714x->version; + input[alloc_idx]->name = "ad714x_captouch_slider"; + input[alloc_idx]->dev.parent = dev; error = input_register_device(input[alloc_idx]); if (error) @@ -1179,6 +1181,8 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, input[alloc_idx]->id.bustype = bus_type; input[alloc_idx]->id.product = ad714x->product; input[alloc_idx]->id.version = ad714x->version; + input[alloc_idx]->name = "ad714x_captouch_wheel"; + input[alloc_idx]->dev.parent = dev; error = input_register_device(input[alloc_idx]); if (error) @@ -1212,6 +1216,8 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, input[alloc_idx]->id.bustype = bus_type; input[alloc_idx]->id.product = ad714x->product; input[alloc_idx]->id.version = ad714x->version; + input[alloc_idx]->name = "ad714x_captouch_pad"; + input[alloc_idx]->dev.parent = dev; error = input_register_device(input[alloc_idx]); if (error) @@ -1240,6 +1246,8 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, input[alloc_idx]->id.bustype = bus_type; input[alloc_idx]->id.product = ad714x->product; input[alloc_idx]->id.version = ad714x->version; + input[alloc_idx]->name = "ad714x_captouch_button"; + input[alloc_idx]->dev.parent = dev; error = input_register_device(input[alloc_idx]); if (error) -- cgit v1.2.3 From e223cc7e96ddbcd32c4a0314d42ae56ade8008e5 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 16 May 2011 23:17:23 -0700 Subject: Input: ad714x - fix threshold and completion interrupt masks Fix two issues in the threshold and completion interrupt mask and unmask functions. According to the AD714x datasheets the highest stage completion interrupt should be enabled. Fix mask computation. Signed-off-by: Michael Hennerich Tested-by: Jean-Francois Dagenais Signed-off-by: Dmitry Torokhov --- drivers/input/misc/ad714x.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c index 2ceb0289a757..0f2db45f730c 100644 --- a/drivers/input/misc/ad714x.c +++ b/drivers/input/misc/ad714x.c @@ -158,10 +158,10 @@ static void ad714x_use_com_int(struct ad714x_chip *ad714x, unsigned short data; unsigned short mask; - mask = ((1 << (end_stage + 1)) - 1) - (1 << start_stage); + mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1); ad714x->read(ad714x->dev, STG_COM_INT_EN_REG, &data); - data |= 1 << start_stage; + data |= 1 << end_stage; ad714x->write(ad714x->dev, STG_COM_INT_EN_REG, data); ad714x->read(ad714x->dev, STG_HIGH_INT_EN_REG, &data); @@ -175,10 +175,10 @@ static void ad714x_use_thr_int(struct ad714x_chip *ad714x, unsigned short data; unsigned short mask; - mask = ((1 << (end_stage + 1)) - 1) - (1 << start_stage); + mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1); ad714x->read(ad714x->dev, STG_COM_INT_EN_REG, &data); - data &= ~(1 << start_stage); + data &= ~(1 << end_stage); ad714x->write(ad714x->dev, STG_COM_INT_EN_REG, data); ad714x->read(ad714x->dev, STG_HIGH_INT_EN_REG, &data); -- cgit v1.2.3 From 3532cb0ca2774b05e3c660f536ba3d1b38061fc9 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 16 May 2011 23:17:34 -0700 Subject: Input: ad714x - allow platform code to specify irqflags Add option to specify irqflags in platfrom data. Also update copyright notice. Signed-off-by: Michael Hennerich Tested-by: Jean-Francois Dagenais Signed-off-by: Dmitry Torokhov --- drivers/input/misc/ad714x.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c index 0f2db45f730c..5f683ec2999e 100644 --- a/drivers/input/misc/ad714x.c +++ b/drivers/input/misc/ad714x.c @@ -1257,7 +1257,9 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, } error = request_threaded_irq(ad714x->irq, NULL, ad714x_interrupt_thread, - IRQF_TRIGGER_FALLING, "ad714x_captouch", ad714x); + plat_data->irqflags ? + plat_data->irqflags : IRQF_TRIGGER_FALLING, + "ad714x_captouch", ad714x); if (error) { dev_err(dev, "can't allocate irq %d\n", ad714x->irq); goto err_unreg_dev; -- cgit v1.2.3 From f1e430e6369f5edac552d99bff15369ef8c6bbd2 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 16 May 2011 23:17:40 -0700 Subject: Input: ad714x - fix captouch wheel option algorithm As reported by Jean-Francois Dagenais, the wheel algorithm caused a divide by zero exception due to missing variable pre-initialization. In fact it turned out that the whole algorithm had several problems. It is therefore replaced with something that is known working. Signed-off-by: Michael Hennerich Tested-by: Jean-Francois Dagenais Signed-off-by: Dmitry Torokhov --- drivers/input/misc/ad714x.c | 109 ++++++++------------------------------------ 1 file changed, 19 insertions(+), 90 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c index 5f683ec2999e..c3a62c42cd28 100644 --- a/drivers/input/misc/ad714x.c +++ b/drivers/input/misc/ad714x.c @@ -79,13 +79,7 @@ struct ad714x_slider_drv { struct ad714x_wheel_drv { int abs_pos; int flt_pos; - int pre_mean_value; int pre_highest_stage; - int pre_mean_value_no_offset; - int mean_value; - int mean_value_no_offset; - int pos_offset; - int pos_ratio; int highest_stage; enum ad714x_device_state state; struct input_dev *input; @@ -404,7 +398,6 @@ static void ad714x_slider_state_machine(struct ad714x_chip *ad714x, int idx) ad714x_slider_cal_highest_stage(ad714x, idx); ad714x_slider_cal_abs_pos(ad714x, idx); ad714x_slider_cal_flt_pos(ad714x, idx); - input_report_abs(sw->input, ABS_X, sw->flt_pos); input_report_key(sw->input, BTN_TOUCH, 1); } else { @@ -468,104 +461,41 @@ static void ad714x_wheel_cal_sensor_val(struct ad714x_chip *ad714x, int idx) /* * When the scroll wheel is activated, we compute the absolute position based * on the sensor values. To calculate the position, we first determine the - * sensor that has the greatest response among the 8 sensors that constitutes - * the scrollwheel. Then we determined the 2 sensors on either sides of the + * sensor that has the greatest response among the sensors that constitutes + * the scrollwheel. Then we determined the sensors on either sides of the * sensor with the highest response and we apply weights to these sensors. The - * result of this computation gives us the mean value which defined by the - * following formula: - * For i= second_before_highest_stage to i= second_after_highest_stage - * v += Sensor response(i)*WEIGHT*(i+3) - * w += Sensor response(i) - * Mean_Value=v/w - * pos_on_scrollwheel = (Mean_Value - position_offset) / position_ratio + * result of this computation gives us the mean value. */ -#define WEIGHT_FACTOR 30 -/* This constant prevents the "PositionOffset" from reaching a big value */ -#define OFFSET_POSITION_CLAMP 120 static void ad714x_wheel_cal_abs_pos(struct ad714x_chip *ad714x, int idx) { struct ad714x_wheel_plat *hw = &ad714x->hw->wheel[idx]; struct ad714x_wheel_drv *sw = &ad714x->sw->wheel[idx]; int stage_num = hw->end_stage - hw->start_stage + 1; - int second_before, first_before, highest, first_after, second_after; + int first_before, highest, first_after; int a_param, b_param; - /* Calculate Mean value */ - - second_before = (sw->highest_stage + stage_num - 2) % stage_num; first_before = (sw->highest_stage + stage_num - 1) % stage_num; highest = sw->highest_stage; first_after = (sw->highest_stage + stage_num + 1) % stage_num; - second_after = (sw->highest_stage + stage_num + 2) % stage_num; - - if (((sw->highest_stage - hw->start_stage) > 1) && - ((hw->end_stage - sw->highest_stage) > 1)) { - a_param = ad714x->sensor_val[second_before] * - (second_before - hw->start_stage + 3) + - ad714x->sensor_val[first_before] * - (second_before - hw->start_stage + 3) + - ad714x->sensor_val[highest] * - (second_before - hw->start_stage + 3) + - ad714x->sensor_val[first_after] * - (first_after - hw->start_stage + 3) + - ad714x->sensor_val[second_after] * - (second_after - hw->start_stage + 3); - } else { - a_param = ad714x->sensor_val[second_before] * - (second_before - hw->start_stage + 1) + - ad714x->sensor_val[first_before] * - (second_before - hw->start_stage + 2) + - ad714x->sensor_val[highest] * - (second_before - hw->start_stage + 3) + - ad714x->sensor_val[first_after] * - (first_after - hw->start_stage + 4) + - ad714x->sensor_val[second_after] * - (second_after - hw->start_stage + 5); - } - a_param *= WEIGHT_FACTOR; - b_param = ad714x->sensor_val[second_before] + + a_param = ad714x->sensor_val[highest] * + (highest - hw->start_stage) + + ad714x->sensor_val[first_before] * + (highest - hw->start_stage - 1) + + ad714x->sensor_val[first_after] * + (highest - hw->start_stage + 1); + b_param = ad714x->sensor_val[highest] + ad714x->sensor_val[first_before] + - ad714x->sensor_val[highest] + - ad714x->sensor_val[first_after] + - ad714x->sensor_val[second_after]; - - sw->pre_mean_value = sw->mean_value; - sw->mean_value = a_param / b_param; - - /* Calculate the offset */ - - if ((sw->pre_highest_stage == hw->end_stage) && - (sw->highest_stage == hw->start_stage)) - sw->pos_offset = sw->mean_value; - else if ((sw->pre_highest_stage == hw->start_stage) && - (sw->highest_stage == hw->end_stage)) - sw->pos_offset = sw->pre_mean_value; - - if (sw->pos_offset > OFFSET_POSITION_CLAMP) - sw->pos_offset = OFFSET_POSITION_CLAMP; - - /* Calculate the mean value without the offset */ - - sw->pre_mean_value_no_offset = sw->mean_value_no_offset; - sw->mean_value_no_offset = sw->mean_value - sw->pos_offset; - if (sw->mean_value_no_offset < 0) - sw->mean_value_no_offset = 0; - - /* Calculate ratio to scale down to NUMBER_OF_WANTED_POSITIONS */ - - if ((sw->pre_highest_stage == hw->end_stage) && - (sw->highest_stage == hw->start_stage)) - sw->pos_ratio = (sw->pre_mean_value_no_offset * 100) / - hw->max_coord; - else if ((sw->pre_highest_stage == hw->start_stage) && - (sw->highest_stage == hw->end_stage)) - sw->pos_ratio = (sw->mean_value_no_offset * 100) / - hw->max_coord; - sw->abs_pos = (sw->mean_value_no_offset * 100) / sw->pos_ratio; + ad714x->sensor_val[first_after]; + + sw->abs_pos = ((hw->max_coord / (hw->end_stage - hw->start_stage)) * + a_param) / b_param; + if (sw->abs_pos > hw->max_coord) sw->abs_pos = hw->max_coord; + else if (sw->abs_pos < 0) + sw->abs_pos = 0; } static void ad714x_wheel_cal_flt_pos(struct ad714x_chip *ad714x, int idx) @@ -639,9 +569,8 @@ static void ad714x_wheel_state_machine(struct ad714x_chip *ad714x, int idx) ad714x_wheel_cal_highest_stage(ad714x, idx); ad714x_wheel_cal_abs_pos(ad714x, idx); ad714x_wheel_cal_flt_pos(ad714x, idx); - input_report_abs(sw->input, ABS_WHEEL, - sw->abs_pos); + sw->flt_pos); input_report_key(sw->input, BTN_TOUCH, 1); } else { /* When the user lifts off the sensor, configure -- cgit v1.2.3 From 4a1a42af0aba011e263098f107a2f45e0de2f279 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 17 May 2011 09:29:45 -0700 Subject: Input: tsc2007 - debounce pressure measurement When the controller signals a pen-down event via the platform-specific GPIO, while the sample values indicate an invalid measurement, the measurement needs to be repeated. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/tsc2007.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index 80467f262331..df4ae354969d 100644 --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -156,6 +156,7 @@ static void tsc2007_work(struct work_struct *work) { struct tsc2007 *ts = container_of(to_delayed_work(work), struct tsc2007, work); + bool debounced = false; struct ts_event tc; u32 rt; @@ -191,6 +192,7 @@ static void tsc2007_work(struct work_struct *work) * repeat at least once more the measurement. */ dev_dbg(&ts->client->dev, "ignored pressure %d\n", rt); + debounced = true; goto out; } @@ -225,7 +227,7 @@ static void tsc2007_work(struct work_struct *work) } out: - if (ts->pendown) + if (ts->pendown || debounced) schedule_delayed_work(&ts->work, msecs_to_jiffies(TS_POLL_PERIOD)); else -- cgit v1.2.3 From 84005eb5ea2939d448047fcf6924b3b9b6ed974d Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 17 May 2011 09:31:01 -0700 Subject: Input: tsc2007 - add max_rt parameter to platform data Finger touch events or very quick stylus events on low-quality panels can cause the tsc2007 to read bogus values. Looking at oscilloscope snapshots, this seems to be caused by the touch event disappearing during the measurements. These bogus values result in misclicks, where the X and Y values deviate from the real position. Most of these misclicks can be filtered out by setting a low enough threshold for the maximum resistance (which is loosely the inverse of the pressure) allowed to consider a set of values valid. Since this behaviour is largely dependent on the type and quality of the panel, this commit introduces the max_rt parameter. The default value is kept at MAX_12BIT. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/tsc2007.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index df4ae354969d..8c48a91a6783 100644 --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -75,6 +75,7 @@ struct tsc2007 { u16 model; u16 x_plate_ohms; + u16 max_rt; bool pendown; int irq; @@ -185,7 +186,7 @@ static void tsc2007_work(struct work_struct *work) tsc2007_read_values(ts, &tc); rt = tsc2007_calculate_pressure(ts, &tc); - if (rt > MAX_12BIT) { + if (rt > ts->max_rt) { /* * Sample found inconsistent by debouncing or pressure is * beyond the maximum. Don't report it to user space, @@ -294,6 +295,7 @@ static int __devinit tsc2007_probe(struct i2c_client *client, ts->model = pdata->model; ts->x_plate_ohms = pdata->x_plate_ohms; + ts->max_rt = pdata->max_rt ? : MAX_12BIT; ts->get_pendown_state = pdata->get_pendown_state; ts->clear_penirq = pdata->clear_penirq; -- cgit v1.2.3 From 2d137c7ed25f9754f52495af570897ad993e4fe7 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 17 May 2011 09:31:33 -0700 Subject: Input: tsc2007 - add poll_delay parameter to platform data Depending on the quality of the touch panel, the time for the X-, X+, Y- and Y+ inputs to settle may vary. The poll_delay parameter can be used to override the default of 1 millisecond. Cc: Dmitry Torokhov Cc: Kwangwoo Lee Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/tsc2007.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index 8c48a91a6783..faa82ddb014b 100644 --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -27,7 +27,6 @@ #include #include -#define TS_POLL_DELAY 1 /* ms delay between samples */ #define TS_POLL_PERIOD 1 /* ms delay between samples */ #define TSC2007_MEASURE_TEMP0 (0x0 << 4) @@ -76,6 +75,7 @@ struct tsc2007 { u16 model; u16 x_plate_ohms; u16 max_rt; + unsigned long poll_delay; bool pendown; int irq; @@ -242,7 +242,7 @@ static irqreturn_t tsc2007_irq(int irq, void *handle) if (!ts->get_pendown_state || likely(ts->get_pendown_state())) { disable_irq_nosync(ts->irq); schedule_delayed_work(&ts->work, - msecs_to_jiffies(TS_POLL_DELAY)); + msecs_to_jiffies(ts->poll_delay)); } if (ts->clear_penirq) @@ -296,6 +296,7 @@ static int __devinit tsc2007_probe(struct i2c_client *client, ts->model = pdata->model; ts->x_plate_ohms = pdata->x_plate_ohms; ts->max_rt = pdata->max_rt ? : MAX_12BIT; + ts->poll_delay = pdata->poll_delay ? : 1; ts->get_pendown_state = pdata->get_pendown_state; ts->clear_penirq = pdata->clear_penirq; -- cgit v1.2.3 From 1af38eac8cdb70dbad3086b4f1bf7296eb1b09b1 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 17 May 2011 09:32:02 -0700 Subject: Input: tsc2007 - add poll_period parameter to platform data This new parameter allows the polling frequency to be configured while keeping the default of once every millisecond. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/tsc2007.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index faa82ddb014b..87c40c79f71e 100644 --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -27,8 +27,6 @@ #include #include -#define TS_POLL_PERIOD 1 /* ms delay between samples */ - #define TSC2007_MEASURE_TEMP0 (0x0 << 4) #define TSC2007_MEASURE_AUX (0x2 << 4) #define TSC2007_MEASURE_TEMP1 (0x4 << 4) @@ -76,6 +74,7 @@ struct tsc2007 { u16 x_plate_ohms; u16 max_rt; unsigned long poll_delay; + unsigned long poll_period; bool pendown; int irq; @@ -230,7 +229,7 @@ static void tsc2007_work(struct work_struct *work) out: if (ts->pendown || debounced) schedule_delayed_work(&ts->work, - msecs_to_jiffies(TS_POLL_PERIOD)); + msecs_to_jiffies(ts->poll_period)); else enable_irq(ts->irq); } @@ -297,6 +296,7 @@ static int __devinit tsc2007_probe(struct i2c_client *client, ts->x_plate_ohms = pdata->x_plate_ohms; ts->max_rt = pdata->max_rt ? : MAX_12BIT; ts->poll_delay = pdata->poll_delay ? : 1; + ts->poll_period = pdata->poll_period ? : 1; ts->get_pendown_state = pdata->get_pendown_state; ts->clear_penirq = pdata->clear_penirq; -- cgit v1.2.3 From 891e376b1e864519bf7e49fa741f473078318530 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 17 May 2011 09:32:29 -0700 Subject: Input: tsc2007 - add X, Y and Z fuzz factors to platform data These new platform-specific values can be used to set the fuzz parameter passed to the input_set_abs_params() function for the ABS_X, ABS_Y and ABS_PRESSURE axes. Signed-off-by: Thierry Reding Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/tsc2007.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c index 87c40c79f71e..fadc11545b1e 100644 --- a/drivers/input/touchscreen/tsc2007.c +++ b/drivers/input/touchscreen/tsc2007.c @@ -310,9 +310,10 @@ static int __devinit tsc2007_probe(struct i2c_client *client, input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); - input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0); - input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0); - input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT, 0, 0); + input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, pdata->fuzzx, 0); + input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, pdata->fuzzy, 0); + input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT, + pdata->fuzzz, 0); if (pdata->init_platform_hw) pdata->init_platform_hw(); -- cgit v1.2.3 From 9d2e173644bb5c42ff1b280fbdda3f195a7cf1f7 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Thu, 19 May 2011 00:59:32 -0700 Subject: Input: ADP5589 - new driver for I2C Keypad Decoder and I/O Expander From http://www.analog.com/ADP5589: The ADP5589 is an I/O port expander and keypad matrix decoder designed for QWERTY type phones that require a large keypad matrix and expanded I/O lines. Signed-off-by: Michael Hennerich Signed-off-by: Mike Frysinger Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/Kconfig | 10 + drivers/input/keyboard/Makefile | 1 + drivers/input/keyboard/adp5589-keys.c | 771 ++++++++++++++++++++++++++++++++++ 3 files changed, 782 insertions(+) create mode 100644 drivers/input/keyboard/adp5589-keys.c (limited to 'drivers/input') diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index dec090ac7d31..69badb4e06aa 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -32,6 +32,16 @@ config KEYBOARD_ADP5588 To compile this driver as a module, choose M here: the module will be called adp5588-keys. +config KEYBOARD_ADP5589 + tristate "ADP5589 I2C QWERTY Keypad and IO Expander" + depends on I2C + help + Say Y here if you want to use a ADP5589 attached to your + system I2C bus. + + To compile this driver as a module, choose M here: the + module will be called adp5589-keys. + config KEYBOARD_AMIGA tristate "Amiga keyboard" depends on AMIGA diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index b45361009f2e..c49cf8e04cd7 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_KEYBOARD_ADP5520) += adp5520-keys.o obj-$(CONFIG_KEYBOARD_ADP5588) += adp5588-keys.o +obj-$(CONFIG_KEYBOARD_ADP5589) += adp5589-keys.o obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c new file mode 100644 index 000000000000..631598663aab --- /dev/null +++ b/drivers/input/keyboard/adp5589-keys.c @@ -0,0 +1,771 @@ +/* + * Description: keypad driver for ADP5589 + * I2C QWERTY Keypad and IO Expander + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * Copyright (C) 2010-2011 Analog Devices Inc. + * Licensed under the GPL-2. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +/* GENERAL_CFG Register */ +#define OSC_EN (1 << 7) +#define CORE_CLK(x) (((x) & 0x3) << 5) +#define LCK_TRK_LOGIC (1 << 4) +#define LCK_TRK_GPI (1 << 3) +#define INT_CFG (1 << 1) +#define RST_CFG (1 << 0) + +/* INT_EN Register */ +#define LOGIC2_IEN (1 << 5) +#define LOGIC1_IEN (1 << 4) +#define LOCK_IEN (1 << 3) +#define OVRFLOW_IEN (1 << 2) +#define GPI_IEN (1 << 1) +#define EVENT_IEN (1 << 0) + +/* Interrupt Status Register */ +#define LOGIC2_INT (1 << 5) +#define LOGIC1_INT (1 << 4) +#define LOCK_INT (1 << 3) +#define OVRFLOW_INT (1 << 2) +#define GPI_INT (1 << 1) +#define EVENT_INT (1 << 0) + +/* STATUS Register */ + +#define LOGIC2_STAT (1 << 7) +#define LOGIC1_STAT (1 << 6) +#define LOCK_STAT (1 << 5) +#define KEC 0xF + +/* PIN_CONFIG_D Register */ +#define C4_EXTEND_CFG (1 << 6) /* RESET2 */ +#define R4_EXTEND_CFG (1 << 5) /* RESET1 */ + +/* LOCK_CFG */ +#define LOCK_EN (1 << 0) + +#define PTIME_MASK 0x3 +#define LTIME_MASK 0x3 + +/* Key Event Register xy */ +#define KEY_EV_PRESSED (1 << 7) +#define KEY_EV_MASK (0x7F) + +#define KEYP_MAX_EVENT 16 + +#define MAXGPIO 19 +#define ADP_BANK(offs) ((offs) >> 3) +#define ADP_BIT(offs) (1u << ((offs) & 0x7)) + +struct adp5589_kpad { + struct i2c_client *client; + struct input_dev *input; + unsigned short keycode[ADP5589_KEYMAPSIZE]; + const struct adp5589_gpi_map *gpimap; + unsigned short gpimapsize; + unsigned extend_cfg; +#ifdef CONFIG_GPIOLIB + unsigned char gpiomap[MAXGPIO]; + bool export_gpio; + struct gpio_chip gc; + struct mutex gpio_lock; /* Protect cached dir, dat_out */ + u8 dat_out[3]; + u8 dir[3]; +#endif +}; + +static int adp5589_read(struct i2c_client *client, u8 reg) +{ + int ret = i2c_smbus_read_byte_data(client, reg); + + if (ret < 0) + dev_err(&client->dev, "Read Error\n"); + + return ret; +} + +static int adp5589_write(struct i2c_client *client, u8 reg, u8 val) +{ + return i2c_smbus_write_byte_data(client, reg, val); +} + +#ifdef CONFIG_GPIOLIB +static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off) +{ + struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc); + unsigned int bank = ADP_BANK(kpad->gpiomap[off]); + unsigned int bit = ADP_BIT(kpad->gpiomap[off]); + + return !!(adp5589_read(kpad->client, ADP5589_GPI_STATUS_A + bank) & + bit); +} + +static void adp5589_gpio_set_value(struct gpio_chip *chip, + unsigned off, int val) +{ + struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc); + unsigned int bank = ADP_BANK(kpad->gpiomap[off]); + unsigned int bit = ADP_BIT(kpad->gpiomap[off]); + + mutex_lock(&kpad->gpio_lock); + + if (val) + kpad->dat_out[bank] |= bit; + else + kpad->dat_out[bank] &= ~bit; + + adp5589_write(kpad->client, ADP5589_GPO_DATA_OUT_A + bank, + kpad->dat_out[bank]); + + mutex_unlock(&kpad->gpio_lock); +} + +static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off) +{ + struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc); + unsigned int bank = ADP_BANK(kpad->gpiomap[off]); + unsigned int bit = ADP_BIT(kpad->gpiomap[off]); + int ret; + + mutex_lock(&kpad->gpio_lock); + + kpad->dir[bank] &= ~bit; + ret = adp5589_write(kpad->client, ADP5589_GPIO_DIRECTION_A + bank, + kpad->dir[bank]); + + mutex_unlock(&kpad->gpio_lock); + + return ret; +} + +static int adp5589_gpio_direction_output(struct gpio_chip *chip, + unsigned off, int val) +{ + struct adp5589_kpad *kpad = container_of(chip, struct adp5589_kpad, gc); + unsigned int bank = ADP_BANK(kpad->gpiomap[off]); + unsigned int bit = ADP_BIT(kpad->gpiomap[off]); + int ret; + + mutex_lock(&kpad->gpio_lock); + + kpad->dir[bank] |= bit; + + if (val) + kpad->dat_out[bank] |= bit; + else + kpad->dat_out[bank] &= ~bit; + + ret = adp5589_write(kpad->client, ADP5589_GPO_DATA_OUT_A + bank, + kpad->dat_out[bank]); + ret |= adp5589_write(kpad->client, ADP5589_GPIO_DIRECTION_A + bank, + kpad->dir[bank]); + + mutex_unlock(&kpad->gpio_lock); + + return ret; +} + +static int __devinit adp5589_build_gpiomap(struct adp5589_kpad *kpad, + const struct adp5589_kpad_platform_data *pdata) +{ + bool pin_used[MAXGPIO]; + int n_unused = 0; + int i; + + memset(pin_used, false, sizeof(pin_used)); + + for (i = 0; i < MAXGPIO; i++) + if (pdata->keypad_en_mask & (1 << i)) + pin_used[i] = true; + + for (i = 0; i < kpad->gpimapsize; i++) + pin_used[kpad->gpimap[i].pin - ADP5589_GPI_PIN_BASE] = true; + + if (kpad->extend_cfg & R4_EXTEND_CFG) + pin_used[4] = true; + + if (kpad->extend_cfg & C4_EXTEND_CFG) + pin_used[12] = true; + + for (i = 0; i < MAXGPIO; i++) + if (!pin_used[i]) + kpad->gpiomap[n_unused++] = i; + + return n_unused; +} + +static int __devinit adp5589_gpio_add(struct adp5589_kpad *kpad) +{ + struct device *dev = &kpad->client->dev; + const struct adp5589_kpad_platform_data *pdata = dev->platform_data; + const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data; + int i, error; + + if (!gpio_data) + return 0; + + kpad->gc.ngpio = adp5589_build_gpiomap(kpad, pdata); + if (kpad->gc.ngpio == 0) { + dev_info(dev, "No unused gpios left to export\n"); + return 0; + } + + kpad->export_gpio = true; + + kpad->gc.direction_input = adp5589_gpio_direction_input; + kpad->gc.direction_output = adp5589_gpio_direction_output; + kpad->gc.get = adp5589_gpio_get_value; + kpad->gc.set = adp5589_gpio_set_value; + kpad->gc.can_sleep = 1; + + kpad->gc.base = gpio_data->gpio_start; + kpad->gc.label = kpad->client->name; + kpad->gc.owner = THIS_MODULE; + + mutex_init(&kpad->gpio_lock); + + error = gpiochip_add(&kpad->gc); + if (error) { + dev_err(dev, "gpiochip_add failed, err: %d\n", error); + return error; + } + + for (i = 0; i <= ADP_BANK(MAXGPIO); i++) { + kpad->dat_out[i] = adp5589_read(kpad->client, + ADP5589_GPO_DATA_OUT_A + i); + kpad->dir[i] = adp5589_read(kpad->client, + ADP5589_GPIO_DIRECTION_A + i); + } + + if (gpio_data->setup) { + error = gpio_data->setup(kpad->client, + kpad->gc.base, kpad->gc.ngpio, + gpio_data->context); + if (error) + dev_warn(dev, "setup failed, %d\n", error); + } + + return 0; +} + +static void __devexit adp5589_gpio_remove(struct adp5589_kpad *kpad) +{ + struct device *dev = &kpad->client->dev; + const struct adp5589_kpad_platform_data *pdata = dev->platform_data; + const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data; + int error; + + if (!kpad->export_gpio) + return; + + if (gpio_data->teardown) { + error = gpio_data->teardown(kpad->client, + kpad->gc.base, kpad->gc.ngpio, + gpio_data->context); + if (error) + dev_warn(dev, "teardown failed %d\n", error); + } + + error = gpiochip_remove(&kpad->gc); + if (error) + dev_warn(dev, "gpiochip_remove failed %d\n", error); +} +#else +static inline int adp5589_gpio_add(struct adp5589_kpad *kpad) +{ + return 0; +} + +static inline void adp5589_gpio_remove(struct adp5589_kpad *kpad) +{ +} +#endif + +static void adp5589_report_switches(struct adp5589_kpad *kpad, + int key, int key_val) +{ + int i; + + for (i = 0; i < kpad->gpimapsize; i++) { + if (key_val == kpad->gpimap[i].pin) { + input_report_switch(kpad->input, + kpad->gpimap[i].sw_evt, + key & KEY_EV_PRESSED); + break; + } + } +} + +static void adp5589_report_events(struct adp5589_kpad *kpad, int ev_cnt) +{ + int i; + + for (i = 0; i < ev_cnt; i++) { + int key = adp5589_read(kpad->client, ADP5589_FIFO_1 + i); + int key_val = key & KEY_EV_MASK; + + if (key_val >= ADP5589_GPI_PIN_BASE && + key_val <= ADP5589_GPI_PIN_END) { + adp5589_report_switches(kpad, key, key_val); + } else { + input_report_key(kpad->input, + kpad->keycode[key_val - 1], + key & KEY_EV_PRESSED); + } + } +} + +static irqreturn_t adp5589_irq(int irq, void *handle) +{ + struct adp5589_kpad *kpad = handle; + struct i2c_client *client = kpad->client; + int status, ev_cnt; + + status = adp5589_read(client, ADP5589_INT_STATUS); + + if (status & OVRFLOW_INT) /* Unlikely and should never happen */ + dev_err(&client->dev, "Event Overflow Error\n"); + + if (status & EVENT_INT) { + ev_cnt = adp5589_read(client, ADP5589_STATUS) & KEC; + if (ev_cnt) { + adp5589_report_events(kpad, ev_cnt); + input_sync(kpad->input); + } + } + + adp5589_write(client, ADP5589_INT_STATUS, status); /* Status is W1C */ + + return IRQ_HANDLED; +} + +static int __devinit adp5589_get_evcode(struct adp5589_kpad *kpad, unsigned short key) +{ + int i; + + for (i = 0; i < ADP5589_KEYMAPSIZE; i++) + if (key == kpad->keycode[i]) + return (i + 1) | KEY_EV_PRESSED; + + dev_err(&kpad->client->dev, "RESET/UNLOCK key not in keycode map\n"); + + return -EINVAL; +} + +static int __devinit adp5589_setup(struct adp5589_kpad *kpad) +{ + struct i2c_client *client = kpad->client; + const struct adp5589_kpad_platform_data *pdata = + client->dev.platform_data; + int i, ret; + unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0; + unsigned char pull_mask = 0; + + ret = adp5589_write(client, ADP5589_PIN_CONFIG_A, + pdata->keypad_en_mask & 0xFF); + ret |= adp5589_write(client, ADP5589_PIN_CONFIG_B, + (pdata->keypad_en_mask >> 8) & 0xFF); + ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C, + (pdata->keypad_en_mask >> 16) & 0xFF); + + if (pdata->en_keylock) { + ret |= adp5589_write(client, ADP5589_UNLOCK1, + pdata->unlock_key1); + ret |= adp5589_write(client, ADP5589_UNLOCK2, + pdata->unlock_key2); + ret |= adp5589_write(client, ADP5589_UNLOCK_TIMERS, + pdata->unlock_timer & LTIME_MASK); + ret |= adp5589_write(client, ADP5589_LOCK_CFG, LOCK_EN); + } + + for (i = 0; i < KEYP_MAX_EVENT; i++) + ret |= adp5589_read(client, ADP5589_FIFO_1 + i); + + for (i = 0; i < pdata->gpimapsize; i++) { + unsigned short pin = pdata->gpimap[i].pin; + + if (pin <= ADP5589_GPI_PIN_ROW_END) { + evt_mode1 |= (1 << (pin - ADP5589_GPI_PIN_ROW_BASE)); + } else { + evt_mode2 |= + ((1 << (pin - ADP5589_GPI_PIN_COL_BASE)) & 0xFF); + evt_mode3 |= + ((1 << (pin - ADP5589_GPI_PIN_COL_BASE)) >> 8); + } + } + + if (pdata->gpimapsize) { + ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_A, evt_mode1); + ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_B, evt_mode2); + ret |= adp5589_write(client, ADP5589_GPI_EVENT_EN_C, evt_mode3); + } + + if (pdata->pull_dis_mask & pdata->pullup_en_100k & + pdata->pullup_en_300k & pdata->pulldown_en_300k) + dev_warn(&client->dev, "Conflicting pull resistor config\n"); + + for (i = 0; i < MAXGPIO; i++) { + unsigned val = 0; + + if (pdata->pullup_en_300k & (1 << i)) + val = 0; + else if (pdata->pulldown_en_300k & (1 << i)) + val = 1; + else if (pdata->pullup_en_100k & (1 << i)) + val = 2; + else if (pdata->pull_dis_mask & (1 << i)) + val = 3; + + pull_mask |= val << (2 * (i & 0x3)); + + if ((i & 0x3) == 0x3 || i == MAXGPIO - 1) { + ret |= adp5589_write(client, + ADP5589_RPULL_CONFIG_A + (i >> 2), + pull_mask); + pull_mask = 0; + } + } + + if (pdata->reset1_key_1 && pdata->reset1_key_2 && pdata->reset1_key_3) { + ret |= adp5589_write(client, ADP5589_RESET1_EVENT_A, + adp5589_get_evcode(kpad, + pdata->reset1_key_1)); + ret |= adp5589_write(client, ADP5589_RESET1_EVENT_B, + adp5589_get_evcode(kpad, + pdata->reset1_key_2)); + ret |= adp5589_write(client, ADP5589_RESET1_EVENT_C, + adp5589_get_evcode(kpad, + pdata->reset1_key_3)); + kpad->extend_cfg |= R4_EXTEND_CFG; + } + + if (pdata->reset2_key_1 && pdata->reset2_key_2) { + ret |= adp5589_write(client, ADP5589_RESET2_EVENT_A, + adp5589_get_evcode(kpad, + pdata->reset2_key_1)); + ret |= adp5589_write(client, ADP5589_RESET2_EVENT_B, + adp5589_get_evcode(kpad, + pdata->reset2_key_2)); + kpad->extend_cfg |= C4_EXTEND_CFG; + } + + if (kpad->extend_cfg) { + ret |= adp5589_write(client, ADP5589_RESET_CFG, + pdata->reset_cfg); + ret |= adp5589_write(client, ADP5589_PIN_CONFIG_D, + kpad->extend_cfg); + } + + for (i = 0; i <= ADP_BANK(MAXGPIO); i++) + ret |= adp5589_write(client, ADP5589_DEBOUNCE_DIS_A + i, + pdata->debounce_dis_mask >> (i * 8)); + + ret |= adp5589_write(client, ADP5589_POLL_PTIME_CFG, + pdata->scan_cycle_time & PTIME_MASK); + ret |= adp5589_write(client, ADP5589_INT_STATUS, LOGIC2_INT | + LOGIC1_INT | OVRFLOW_INT | LOCK_INT | + GPI_INT | EVENT_INT); /* Status is W1C */ + + ret |= adp5589_write(client, ADP5589_GENERAL_CFG, + INT_CFG | OSC_EN | CORE_CLK(3)); + ret |= adp5589_write(client, ADP5589_INT_EN, + OVRFLOW_IEN | GPI_IEN | EVENT_IEN); + + if (ret < 0) { + dev_err(&client->dev, "Write Error\n"); + return ret; + } + + return 0; +} + +static void __devinit adp5589_report_switch_state(struct adp5589_kpad *kpad) +{ + int gpi_stat1 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_A); + int gpi_stat2 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_B); + int gpi_stat3 = adp5589_read(kpad->client, ADP5589_GPI_STATUS_C); + int gpi_stat_tmp, pin_loc; + int i; + + for (i = 0; i < kpad->gpimapsize; i++) { + unsigned short pin = kpad->gpimap[i].pin; + + if (pin <= ADP5589_GPI_PIN_ROW_END) { + gpi_stat_tmp = gpi_stat1; + pin_loc = pin - ADP5589_GPI_PIN_ROW_BASE; + } else if ((pin - ADP5589_GPI_PIN_COL_BASE) < 8) { + gpi_stat_tmp = gpi_stat2; + pin_loc = pin - ADP5589_GPI_PIN_COL_BASE; + } else { + gpi_stat_tmp = gpi_stat3; + pin_loc = pin - ADP5589_GPI_PIN_COL_BASE - 8; + } + + if (gpi_stat_tmp < 0) { + dev_err(&kpad->client->dev, + "Can't read GPIO_DAT_STAT switch" + " %d default to OFF\n", pin); + gpi_stat_tmp = 0; + } + + input_report_switch(kpad->input, + kpad->gpimap[i].sw_evt, + !(gpi_stat_tmp & (1 << pin_loc))); + } + + input_sync(kpad->input); +} + +static int __devinit adp5589_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct adp5589_kpad *kpad; + const struct adp5589_kpad_platform_data *pdata; + struct input_dev *input; + unsigned int revid; + int ret, i; + int error; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA)) { + dev_err(&client->dev, "SMBUS Byte Data not Supported\n"); + return -EIO; + } + + pdata = client->dev.platform_data; + if (!pdata) { + dev_err(&client->dev, "no platform data?\n"); + return -EINVAL; + } + + if (!((pdata->keypad_en_mask & 0xFF) && + (pdata->keypad_en_mask >> 8)) || !pdata->keymap) { + dev_err(&client->dev, "no rows, cols or keymap from pdata\n"); + return -EINVAL; + } + + if (pdata->keymapsize != ADP5589_KEYMAPSIZE) { + dev_err(&client->dev, "invalid keymapsize\n"); + return -EINVAL; + } + + if (!pdata->gpimap && pdata->gpimapsize) { + dev_err(&client->dev, "invalid gpimap from pdata\n"); + return -EINVAL; + } + + if (pdata->gpimapsize > ADP5589_GPIMAPSIZE_MAX) { + dev_err(&client->dev, "invalid gpimapsize\n"); + return -EINVAL; + } + + for (i = 0; i < pdata->gpimapsize; i++) { + unsigned short pin = pdata->gpimap[i].pin; + + if (pin < ADP5589_GPI_PIN_BASE || pin > ADP5589_GPI_PIN_END) { + dev_err(&client->dev, "invalid gpi pin data\n"); + return -EINVAL; + } + + if ((1 << (pin - ADP5589_GPI_PIN_ROW_BASE)) & + pdata->keypad_en_mask) { + dev_err(&client->dev, "invalid gpi row/col data\n"); + return -EINVAL; + } + } + + if (!client->irq) { + dev_err(&client->dev, "no IRQ?\n"); + return -EINVAL; + } + + kpad = kzalloc(sizeof(*kpad), GFP_KERNEL); + input = input_allocate_device(); + if (!kpad || !input) { + error = -ENOMEM; + goto err_free_mem; + } + + kpad->client = client; + kpad->input = input; + + ret = adp5589_read(client, ADP5589_ID); + if (ret < 0) { + error = ret; + goto err_free_mem; + } + + revid = (u8) ret & ADP5589_DEVICE_ID_MASK; + + input->name = client->name; + input->phys = "adp5589-keys/input0"; + input->dev.parent = &client->dev; + + input_set_drvdata(input, kpad); + + input->id.bustype = BUS_I2C; + input->id.vendor = 0x0001; + input->id.product = 0x0001; + input->id.version = revid; + + input->keycodesize = sizeof(kpad->keycode[0]); + input->keycodemax = pdata->keymapsize; + input->keycode = kpad->keycode; + + memcpy(kpad->keycode, pdata->keymap, + pdata->keymapsize * input->keycodesize); + + kpad->gpimap = pdata->gpimap; + kpad->gpimapsize = pdata->gpimapsize; + + /* setup input device */ + __set_bit(EV_KEY, input->evbit); + + if (pdata->repeat) + __set_bit(EV_REP, input->evbit); + + for (i = 0; i < input->keycodemax; i++) + __set_bit(kpad->keycode[i] & KEY_MAX, input->keybit); + __clear_bit(KEY_RESERVED, input->keybit); + + if (kpad->gpimapsize) + __set_bit(EV_SW, input->evbit); + for (i = 0; i < kpad->gpimapsize; i++) + __set_bit(kpad->gpimap[i].sw_evt, input->swbit); + + error = input_register_device(input); + if (error) { + dev_err(&client->dev, "unable to register input device\n"); + goto err_free_mem; + } + + error = request_threaded_irq(client->irq, NULL, adp5589_irq, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + client->dev.driver->name, kpad); + if (error) { + dev_err(&client->dev, "irq %d busy?\n", client->irq); + goto err_unreg_dev; + } + + error = adp5589_setup(kpad); + if (error) + goto err_free_irq; + + if (kpad->gpimapsize) + adp5589_report_switch_state(kpad); + + error = adp5589_gpio_add(kpad); + if (error) + goto err_free_irq; + + device_init_wakeup(&client->dev, 1); + i2c_set_clientdata(client, kpad); + + dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq); + return 0; + +err_free_irq: + free_irq(client->irq, kpad); +err_unreg_dev: + input_unregister_device(input); + input = NULL; +err_free_mem: + input_free_device(input); + kfree(kpad); + + return error; +} + +static int __devexit adp5589_remove(struct i2c_client *client) +{ + struct adp5589_kpad *kpad = i2c_get_clientdata(client); + + adp5589_write(client, ADP5589_GENERAL_CFG, 0); + free_irq(client->irq, kpad); + input_unregister_device(kpad->input); + adp5589_gpio_remove(kpad); + kfree(kpad); + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int adp5589_suspend(struct device *dev) +{ + struct adp5589_kpad *kpad = dev_get_drvdata(dev); + struct i2c_client *client = kpad->client; + + disable_irq(client->irq); + + if (device_may_wakeup(&client->dev)) + enable_irq_wake(client->irq); + + return 0; +} + +static int adp5589_resume(struct device *dev) +{ + struct adp5589_kpad *kpad = dev_get_drvdata(dev); + struct i2c_client *client = kpad->client; + + if (device_may_wakeup(&client->dev)) + disable_irq_wake(client->irq); + + enable_irq(client->irq); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume); + +static const struct i2c_device_id adp5589_id[] = { + {"adp5589-keys", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, adp5589_id); + +static struct i2c_driver adp5589_driver = { + .driver = { + .name = KBUILD_MODNAME, + .owner = THIS_MODULE, + .pm = &adp5589_dev_pm_ops, + }, + .probe = adp5589_probe, + .remove = __devexit_p(adp5589_remove), + .id_table = adp5589_id, +}; + +static int __init adp5589_init(void) +{ + return i2c_add_driver(&adp5589_driver); +} +module_init(adp5589_init); + +static void __exit adp5589_exit(void) +{ + i2c_del_driver(&adp5589_driver); +} +module_exit(adp5589_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Michael Hennerich "); +MODULE_DESCRIPTION("ADP5589 Keypad driver"); -- cgit v1.2.3 From 7786908c3c1bb38dcc5cd2c037251c05507eef16 Mon Sep 17 00:00:00 2001 From: Michael Schmitz Date: Tue, 16 Dec 2008 21:26:03 +0100 Subject: input/atari: Use the correct mouse interrupt hook The Atari keyboard driver calls atari_mouse_interrupt_hook if it's set, not atari_input_mouse_interrupt_hook. Fix below. [geert] Killed off atari_mouse_interrupt_hook completely, after fixing another incorrect assignment in atarimouse.c. Signed-off-by: Michael Schmitz Signed-off-by: Geert Uytterhoeven --- drivers/input/mouse/atarimouse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/input') diff --git a/drivers/input/mouse/atarimouse.c b/drivers/input/mouse/atarimouse.c index adf45b3040e9..a57143ce80b5 100644 --- a/drivers/input/mouse/atarimouse.c +++ b/drivers/input/mouse/atarimouse.c @@ -108,7 +108,7 @@ static int atamouse_open(struct input_dev *dev) static void atamouse_close(struct input_dev *dev) { ikbd_mouse_disable(); - atari_mouse_interrupt_hook = NULL; + atari_input_mouse_interrupt_hook = NULL; } static int __init atamouse_init(void) -- cgit v1.2.3 From 186f200a95cbd13c291cdd3ddeb07aad0a3782cc Mon Sep 17 00:00:00 2001 From: Michael Schmitz Date: Sun, 28 Dec 2008 23:00:45 +0100 Subject: input/atari: Fix atarimouse init Atarimouse fails to load as a module (with ENODEV), due to a brown paper bag bug, misinterpreting the semantics of atari_keyb_init(). [geert] Propagate the return value of atari_keyb_init() everywhere Signed-off-by: Michael Schmitz Signed-off-by: Geert Uytterhoeven --- drivers/input/keyboard/atakbd.c | 5 +++-- drivers/input/mouse/atarimouse.c | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/keyboard/atakbd.c b/drivers/input/keyboard/atakbd.c index 1839194ea987..10bcd4ae5402 100644 --- a/drivers/input/keyboard/atakbd.c +++ b/drivers/input/keyboard/atakbd.c @@ -223,8 +223,9 @@ static int __init atakbd_init(void) return -ENODEV; // need to init core driver if not already done so - if (atari_keyb_init()) - return -ENODEV; + error = atari_keyb_init(); + if (error) + return error; atakbd_dev = input_allocate_device(); if (!atakbd_dev) diff --git a/drivers/input/mouse/atarimouse.c b/drivers/input/mouse/atarimouse.c index a57143ce80b5..16a9d0ffab8a 100644 --- a/drivers/input/mouse/atarimouse.c +++ b/drivers/input/mouse/atarimouse.c @@ -118,8 +118,9 @@ static int __init atamouse_init(void) if (!MACH_IS_ATARI || !ATARIHW_PRESENT(ST_MFP)) return -ENODEV; - if (!atari_keyb_init()) - return -ENODEV; + error = atari_keyb_init(); + if (error) + return error; atamouse_dev = input_allocate_device(); if (!atamouse_dev) -- cgit v1.2.3 From 659e6ed55ff8d617c895c10288644e3e6107834e Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Mon, 31 Jan 2011 20:15:04 +0100 Subject: input/atari: Fix mouse movement and button mapping Up and down movements were reversed, left and right buttons were swapped. Signed-off-by: Geert Uytterhoeven --- drivers/input/mouse/atarimouse.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/mouse/atarimouse.c b/drivers/input/mouse/atarimouse.c index 16a9d0ffab8a..5c4a692bf73a 100644 --- a/drivers/input/mouse/atarimouse.c +++ b/drivers/input/mouse/atarimouse.c @@ -77,15 +77,15 @@ static void atamouse_interrupt(char *buf) #endif /* only relative events get here */ - dx = buf[1]; - dy = -buf[2]; + dx = buf[1]; + dy = buf[2]; input_report_rel(atamouse_dev, REL_X, dx); input_report_rel(atamouse_dev, REL_Y, dy); - input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x1); + input_report_key(atamouse_dev, BTN_LEFT, buttons & 0x4); input_report_key(atamouse_dev, BTN_MIDDLE, buttons & 0x2); - input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x4); + input_report_key(atamouse_dev, BTN_RIGHT, buttons & 0x1); input_sync(atamouse_dev); -- cgit v1.2.3 From a4579ad2bb6557834ebfafc8d2942891516fb4ad Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Wed, 6 Apr 2011 15:57:17 +0200 Subject: mfd: Use mfd cell platform_data for twl4030 codec cells platform bits With the addition of a platform device mfd_cell pointer, MFD drivers can go back to passing platform data back to their sub drivers. This allows for an mfd_cell->mfd_data removal and thus keep the sub drivers MFD agnostic. This is mostly needed for non MFD aware sub drivers. Cc: Peter Ujfalusi Cc: Mark Brown Cc: Liam Girdwood Cc: Dmitry Torokhov Signed-off-by: Samuel Ortiz --- drivers/input/misc/twl4030-vibra.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/input') diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c index 6a11694e3fc7..014dd4ad0d4f 100644 --- a/drivers/input/misc/twl4030-vibra.c +++ b/drivers/input/misc/twl4030-vibra.c @@ -29,7 +29,6 @@ #include #include #include -#include #include #include @@ -197,7 +196,7 @@ static SIMPLE_DEV_PM_OPS(twl4030_vibra_pm_ops, static int __devinit twl4030_vibra_probe(struct platform_device *pdev) { - struct twl4030_codec_vibra_data *pdata = mfd_get_data(pdev); + struct twl4030_codec_vibra_data *pdata = pdev->dev.platform_data; struct vibra_info *info; int ret; -- cgit v1.2.3 From 39325b59d88b42ba2ccf2e62c234059e9941a47c Mon Sep 17 00:00:00 2001 From: Trilok Soni Date: Thu, 19 May 2011 10:54:04 +0530 Subject: input: Add Qualcomm pm8xxx keypad controller driver Add Qualcomm PMIC8XXX based keypad controller driver supporting upto 18x8 matrix configuration. Acked-by: Dmitry Torokhov Signed-off-by: Trilok Soni Signed-off-by: Anirudh Ghayal Signed-off-by: Samuel Ortiz --- drivers/input/keyboard/Kconfig | 11 + drivers/input/keyboard/Makefile | 1 + drivers/input/keyboard/pmic8xxx-keypad.c | 799 +++++++++++++++++++++++++++++++ 3 files changed, 811 insertions(+) create mode 100644 drivers/input/keyboard/pmic8xxx-keypad.c (limited to 'drivers/input') diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index 69badb4e06aa..b4dee9d5a055 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -412,6 +412,17 @@ config KEYBOARD_PXA930_ROTARY To compile this driver as a module, choose M here: the module will be called pxa930_rotary. +config KEYBOARD_PMIC8XXX + tristate "Qualcomm PMIC8XXX keypad support" + depends on MFD_PM8XXX + help + Say Y here if you want to enable the driver for the PMIC8XXX + keypad provided as a reference design from Qualcomm. This is intended + to support upto 18x8 matrix based keypad design. + + To compile this driver as a module, choose M here: the module will + be called pmic8xxx-keypad. + config KEYBOARD_SAMSUNG tristate "Samsung keypad support" depends on SAMSUNG_DEV_KEYPAD diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index c49cf8e04cd7..ddde0fd476f7 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_KEYBOARD_NOMADIK) += nomadik-ske-keypad.o obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o obj-$(CONFIG_KEYBOARD_OMAP4) += omap4-keypad.o obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o +obj-$(CONFIG_KEYBOARD_PMIC8XXX) += pmic8xxx-keypad.o obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o obj-$(CONFIG_KEYBOARD_QT1070) += qt1070.o diff --git a/drivers/input/keyboard/pmic8xxx-keypad.c b/drivers/input/keyboard/pmic8xxx-keypad.c new file mode 100644 index 000000000000..40b02ae96f86 --- /dev/null +++ b/drivers/input/keyboard/pmic8xxx-keypad.c @@ -0,0 +1,799 @@ +/* Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define PM8XXX_MAX_ROWS 18 +#define PM8XXX_MAX_COLS 8 +#define PM8XXX_ROW_SHIFT 3 +#define PM8XXX_MATRIX_MAX_SIZE (PM8XXX_MAX_ROWS * PM8XXX_MAX_COLS) + +#define PM8XXX_MIN_ROWS 5 +#define PM8XXX_MIN_COLS 5 + +#define MAX_SCAN_DELAY 128 +#define MIN_SCAN_DELAY 1 + +/* in nanoseconds */ +#define MAX_ROW_HOLD_DELAY 122000 +#define MIN_ROW_HOLD_DELAY 30500 + +#define MAX_DEBOUNCE_TIME 20 +#define MIN_DEBOUNCE_TIME 5 + +#define KEYP_CTRL 0x148 + +#define KEYP_CTRL_EVNTS BIT(0) +#define KEYP_CTRL_EVNTS_MASK 0x3 + +#define KEYP_CTRL_SCAN_COLS_SHIFT 5 +#define KEYP_CTRL_SCAN_COLS_MIN 5 +#define KEYP_CTRL_SCAN_COLS_BITS 0x3 + +#define KEYP_CTRL_SCAN_ROWS_SHIFT 2 +#define KEYP_CTRL_SCAN_ROWS_MIN 5 +#define KEYP_CTRL_SCAN_ROWS_BITS 0x7 + +#define KEYP_CTRL_KEYP_EN BIT(7) + +#define KEYP_SCAN 0x149 + +#define KEYP_SCAN_READ_STATE BIT(0) +#define KEYP_SCAN_DBOUNCE_SHIFT 1 +#define KEYP_SCAN_PAUSE_SHIFT 3 +#define KEYP_SCAN_ROW_HOLD_SHIFT 6 + +#define KEYP_TEST 0x14A + +#define KEYP_TEST_CLEAR_RECENT_SCAN BIT(6) +#define KEYP_TEST_CLEAR_OLD_SCAN BIT(5) +#define KEYP_TEST_READ_RESET BIT(4) +#define KEYP_TEST_DTEST_EN BIT(3) +#define KEYP_TEST_ABORT_READ BIT(0) + +#define KEYP_TEST_DBG_SELECT_SHIFT 1 + +/* bits of these registers represent + * '0' for key press + * '1' for key release + */ +#define KEYP_RECENT_DATA 0x14B +#define KEYP_OLD_DATA 0x14C + +#define KEYP_CLOCK_FREQ 32768 + +/** + * struct pmic8xxx_kp - internal keypad data structure + * @pdata - keypad platform data pointer + * @input - input device pointer for keypad + * @key_sense_irq - key press/release irq number + * @key_stuck_irq - key stuck notification irq number + * @keycodes - array to hold the key codes + * @dev - parent device pointer + * @keystate - present key press/release state + * @stuckstate - present state when key stuck irq + * @ctrl_reg - control register value + */ +struct pmic8xxx_kp { + const struct pm8xxx_keypad_platform_data *pdata; + struct input_dev *input; + int key_sense_irq; + int key_stuck_irq; + + unsigned short keycodes[PM8XXX_MATRIX_MAX_SIZE]; + + struct device *dev; + u16 keystate[PM8XXX_MAX_ROWS]; + u16 stuckstate[PM8XXX_MAX_ROWS]; + + u8 ctrl_reg; +}; + +static int pmic8xxx_kp_write_u8(struct pmic8xxx_kp *kp, + u8 data, u16 reg) +{ + int rc; + + rc = pm8xxx_writeb(kp->dev->parent, reg, data); + return rc; +} + +static int pmic8xxx_kp_read(struct pmic8xxx_kp *kp, + u8 *data, u16 reg, unsigned num_bytes) +{ + int rc; + + rc = pm8xxx_read_buf(kp->dev->parent, reg, data, num_bytes); + return rc; +} + +static int pmic8xxx_kp_read_u8(struct pmic8xxx_kp *kp, + u8 *data, u16 reg) +{ + int rc; + + rc = pmic8xxx_kp_read(kp, data, reg, 1); + return rc; +} + +static u8 pmic8xxx_col_state(struct pmic8xxx_kp *kp, u8 col) +{ + /* all keys pressed on that particular row? */ + if (col == 0x00) + return 1 << kp->pdata->num_cols; + else + return col & ((1 << kp->pdata->num_cols) - 1); +} + +/* + * Synchronous read protocol for RevB0 onwards: + * + * 1. Write '1' to ReadState bit in KEYP_SCAN register + * 2. Wait 2*32KHz clocks, so that HW can successfully enter read mode + * synchronously + * 3. Read rows in old array first if events are more than one + * 4. Read rows in recent array + * 5. Wait 4*32KHz clocks + * 6. Write '0' to ReadState bit of KEYP_SCAN register so that hw can + * synchronously exit read mode. + */ +static int pmic8xxx_chk_sync_read(struct pmic8xxx_kp *kp) +{ + int rc; + u8 scan_val; + + rc = pmic8xxx_kp_read_u8(kp, &scan_val, KEYP_SCAN); + if (rc < 0) { + dev_err(kp->dev, "Error reading KEYP_SCAN reg, rc=%d\n", rc); + return rc; + } + + scan_val |= 0x1; + + rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN); + if (rc < 0) { + dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc); + return rc; + } + + /* 2 * 32KHz clocks */ + udelay((2 * DIV_ROUND_UP(USEC_PER_SEC, KEYP_CLOCK_FREQ)) + 1); + + return rc; +} + +static int pmic8xxx_kp_read_data(struct pmic8xxx_kp *kp, u16 *state, + u16 data_reg, int read_rows) +{ + int rc, row; + u8 new_data[PM8XXX_MAX_ROWS]; + + rc = pmic8xxx_kp_read(kp, new_data, data_reg, read_rows); + if (rc) + return rc; + + for (row = 0; row < kp->pdata->num_rows; row++) { + dev_dbg(kp->dev, "new_data[%d] = %d\n", row, + new_data[row]); + state[row] = pmic8xxx_col_state(kp, new_data[row]); + } + + return rc; +} + +static int pmic8xxx_kp_read_matrix(struct pmic8xxx_kp *kp, u16 *new_state, + u16 *old_state) +{ + int rc, read_rows; + u8 scan_val; + + if (kp->pdata->num_rows < PM8XXX_MIN_ROWS) + read_rows = PM8XXX_MIN_ROWS; + else + read_rows = kp->pdata->num_rows; + + pmic8xxx_chk_sync_read(kp); + + if (old_state) { + rc = pmic8xxx_kp_read_data(kp, old_state, KEYP_OLD_DATA, + read_rows); + if (rc < 0) { + dev_err(kp->dev, + "Error reading KEYP_OLD_DATA, rc=%d\n", rc); + return rc; + } + } + + rc = pmic8xxx_kp_read_data(kp, new_state, KEYP_RECENT_DATA, + read_rows); + if (rc < 0) { + dev_err(kp->dev, + "Error reading KEYP_RECENT_DATA, rc=%d\n", rc); + return rc; + } + + /* 4 * 32KHz clocks */ + udelay((4 * DIV_ROUND_UP(USEC_PER_SEC, KEYP_CLOCK_FREQ)) + 1); + + rc = pmic8xxx_kp_read_u8(kp, &scan_val, KEYP_SCAN); + if (rc < 0) { + dev_err(kp->dev, "Error reading KEYP_SCAN reg, rc=%d\n", rc); + return rc; + } + + scan_val &= 0xFE; + rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN); + if (rc < 0) + dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc); + + return rc; +} + +static void __pmic8xxx_kp_scan_matrix(struct pmic8xxx_kp *kp, u16 *new_state, + u16 *old_state) +{ + int row, col, code; + + for (row = 0; row < kp->pdata->num_rows; row++) { + int bits_changed = new_state[row] ^ old_state[row]; + + if (!bits_changed) + continue; + + for (col = 0; col < kp->pdata->num_cols; col++) { + if (!(bits_changed & (1 << col))) + continue; + + dev_dbg(kp->dev, "key [%d:%d] %s\n", row, col, + !(new_state[row] & (1 << col)) ? + "pressed" : "released"); + + code = MATRIX_SCAN_CODE(row, col, PM8XXX_ROW_SHIFT); + + input_event(kp->input, EV_MSC, MSC_SCAN, code); + input_report_key(kp->input, + kp->keycodes[code], + !(new_state[row] & (1 << col))); + + input_sync(kp->input); + } + } +} + +static bool pmic8xxx_detect_ghost_keys(struct pmic8xxx_kp *kp, u16 *new_state) +{ + int row, found_first = -1; + u16 check, row_state; + + check = 0; + for (row = 0; row < kp->pdata->num_rows; row++) { + row_state = (~new_state[row]) & + ((1 << kp->pdata->num_cols) - 1); + + if (hweight16(row_state) > 1) { + if (found_first == -1) + found_first = row; + if (check & row_state) { + dev_dbg(kp->dev, "detected ghost key on row[%d]" + " and row[%d]\n", found_first, row); + return true; + } + } + check |= row_state; + } + return false; +} + +static int pmic8xxx_kp_scan_matrix(struct pmic8xxx_kp *kp, unsigned int events) +{ + u16 new_state[PM8XXX_MAX_ROWS]; + u16 old_state[PM8XXX_MAX_ROWS]; + int rc; + + switch (events) { + case 0x1: + rc = pmic8xxx_kp_read_matrix(kp, new_state, NULL); + if (rc < 0) + return rc; + + /* detecting ghost key is not an error */ + if (pmic8xxx_detect_ghost_keys(kp, new_state)) + return 0; + __pmic8xxx_kp_scan_matrix(kp, new_state, kp->keystate); + memcpy(kp->keystate, new_state, sizeof(new_state)); + break; + case 0x3: /* two events - eventcounter is gray-coded */ + rc = pmic8xxx_kp_read_matrix(kp, new_state, old_state); + if (rc < 0) + return rc; + + __pmic8xxx_kp_scan_matrix(kp, old_state, kp->keystate); + __pmic8xxx_kp_scan_matrix(kp, new_state, old_state); + memcpy(kp->keystate, new_state, sizeof(new_state)); + break; + case 0x2: + dev_dbg(kp->dev, "Some key events were lost\n"); + rc = pmic8xxx_kp_read_matrix(kp, new_state, old_state); + if (rc < 0) + return rc; + __pmic8xxx_kp_scan_matrix(kp, old_state, kp->keystate); + __pmic8xxx_kp_scan_matrix(kp, new_state, old_state); + memcpy(kp->keystate, new_state, sizeof(new_state)); + break; + default: + rc = -EINVAL; + } + return rc; +} + +/* + * NOTE: We are reading recent and old data registers blindly + * whenever key-stuck interrupt happens, because events counter doesn't + * get updated when this interrupt happens due to key stuck doesn't get + * considered as key state change. + * + * We are not using old data register contents after they are being read + * because it might report the key which was pressed before the key being stuck + * as stuck key because it's pressed status is stored in the old data + * register. + */ +static irqreturn_t pmic8xxx_kp_stuck_irq(int irq, void *data) +{ + u16 new_state[PM8XXX_MAX_ROWS]; + u16 old_state[PM8XXX_MAX_ROWS]; + int rc; + struct pmic8xxx_kp *kp = data; + + rc = pmic8xxx_kp_read_matrix(kp, new_state, old_state); + if (rc < 0) { + dev_err(kp->dev, "failed to read keypad matrix\n"); + return IRQ_HANDLED; + } + + __pmic8xxx_kp_scan_matrix(kp, new_state, kp->stuckstate); + + return IRQ_HANDLED; +} + +static irqreturn_t pmic8xxx_kp_irq(int irq, void *data) +{ + struct pmic8xxx_kp *kp = data; + u8 ctrl_val, events; + int rc; + + rc = pmic8xxx_kp_read(kp, &ctrl_val, KEYP_CTRL, 1); + if (rc < 0) { + dev_err(kp->dev, "failed to read keyp_ctrl register\n"); + return IRQ_HANDLED; + } + + events = ctrl_val & KEYP_CTRL_EVNTS_MASK; + + rc = pmic8xxx_kp_scan_matrix(kp, events); + if (rc < 0) + dev_err(kp->dev, "failed to scan matrix\n"); + + return IRQ_HANDLED; +} + +static int __devinit pmic8xxx_kpd_init(struct pmic8xxx_kp *kp) +{ + int bits, rc, cycles; + u8 scan_val = 0, ctrl_val = 0; + static const u8 row_bits[] = { + 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7, + }; + + /* Find column bits */ + if (kp->pdata->num_cols < KEYP_CTRL_SCAN_COLS_MIN) + bits = 0; + else + bits = kp->pdata->num_cols - KEYP_CTRL_SCAN_COLS_MIN; + ctrl_val = (bits & KEYP_CTRL_SCAN_COLS_BITS) << + KEYP_CTRL_SCAN_COLS_SHIFT; + + /* Find row bits */ + if (kp->pdata->num_rows < KEYP_CTRL_SCAN_ROWS_MIN) + bits = 0; + else + bits = row_bits[kp->pdata->num_rows - KEYP_CTRL_SCAN_ROWS_MIN]; + + ctrl_val |= (bits << KEYP_CTRL_SCAN_ROWS_SHIFT); + + rc = pmic8xxx_kp_write_u8(kp, ctrl_val, KEYP_CTRL); + if (rc < 0) { + dev_err(kp->dev, "Error writing KEYP_CTRL reg, rc=%d\n", rc); + return rc; + } + + bits = (kp->pdata->debounce_ms / 5) - 1; + + scan_val |= (bits << KEYP_SCAN_DBOUNCE_SHIFT); + + bits = fls(kp->pdata->scan_delay_ms) - 1; + scan_val |= (bits << KEYP_SCAN_PAUSE_SHIFT); + + /* Row hold time is a multiple of 32KHz cycles. */ + cycles = (kp->pdata->row_hold_ns * KEYP_CLOCK_FREQ) / NSEC_PER_SEC; + + scan_val |= (cycles << KEYP_SCAN_ROW_HOLD_SHIFT); + + rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN); + if (rc) + dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc); + + return rc; + +} + +static int __devinit pmic8xxx_kp_config_gpio(int gpio_start, int num_gpios, + struct pmic8xxx_kp *kp, struct pm_gpio *gpio_config) +{ + int rc, i; + + if (gpio_start < 0 || num_gpios < 0) + return -EINVAL; + + for (i = 0; i < num_gpios; i++) { + rc = pm8xxx_gpio_config(gpio_start + i, gpio_config); + if (rc) { + dev_err(kp->dev, "%s: FAIL pm8xxx_gpio_config():" + "for PM GPIO [%d] rc=%d.\n", + __func__, gpio_start + i, rc); + return rc; + } + } + + return 0; +} + +static int pmic8xxx_kp_enable(struct pmic8xxx_kp *kp) +{ + int rc; + + kp->ctrl_reg |= KEYP_CTRL_KEYP_EN; + + rc = pmic8xxx_kp_write_u8(kp, kp->ctrl_reg, KEYP_CTRL); + if (rc < 0) + dev_err(kp->dev, "Error writing KEYP_CTRL reg, rc=%d\n", rc); + + return rc; +} + +static int pmic8xxx_kp_disable(struct pmic8xxx_kp *kp) +{ + int rc; + + kp->ctrl_reg &= ~KEYP_CTRL_KEYP_EN; + + rc = pmic8xxx_kp_write_u8(kp, kp->ctrl_reg, KEYP_CTRL); + if (rc < 0) + return rc; + + return rc; +} + +static int pmic8xxx_kp_open(struct input_dev *dev) +{ + struct pmic8xxx_kp *kp = input_get_drvdata(dev); + + return pmic8xxx_kp_enable(kp); +} + +static void pmic8xxx_kp_close(struct input_dev *dev) +{ + struct pmic8xxx_kp *kp = input_get_drvdata(dev); + + pmic8xxx_kp_disable(kp); +} + +/* + * keypad controller should be initialized in the following sequence + * only, otherwise it might get into FSM stuck state. + * + * - Initialize keypad control parameters, like no. of rows, columns, + * timing values etc., + * - configure rows and column gpios pull up/down. + * - set irq edge type. + * - enable the keypad controller. + */ +static int __devinit pmic8xxx_kp_probe(struct platform_device *pdev) +{ + const struct pm8xxx_keypad_platform_data *pdata = mfd_get_data(pdev); + const struct matrix_keymap_data *keymap_data; + struct pmic8xxx_kp *kp; + int rc; + u8 ctrl_val; + + struct pm_gpio kypd_drv = { + .direction = PM_GPIO_DIR_OUT, + .output_buffer = PM_GPIO_OUT_BUF_OPEN_DRAIN, + .output_value = 0, + .pull = PM_GPIO_PULL_NO, + .vin_sel = PM_GPIO_VIN_S3, + .out_strength = PM_GPIO_STRENGTH_LOW, + .function = PM_GPIO_FUNC_1, + .inv_int_pol = 1, + }; + + struct pm_gpio kypd_sns = { + .direction = PM_GPIO_DIR_IN, + .pull = PM_GPIO_PULL_UP_31P5, + .vin_sel = PM_GPIO_VIN_S3, + .out_strength = PM_GPIO_STRENGTH_NO, + .function = PM_GPIO_FUNC_NORMAL, + .inv_int_pol = 1, + }; + + + if (!pdata || !pdata->num_cols || !pdata->num_rows || + pdata->num_cols > PM8XXX_MAX_COLS || + pdata->num_rows > PM8XXX_MAX_ROWS || + pdata->num_cols < PM8XXX_MIN_COLS) { + dev_err(&pdev->dev, "invalid platform data\n"); + return -EINVAL; + } + + if (!pdata->scan_delay_ms || + pdata->scan_delay_ms > MAX_SCAN_DELAY || + pdata->scan_delay_ms < MIN_SCAN_DELAY || + !is_power_of_2(pdata->scan_delay_ms)) { + dev_err(&pdev->dev, "invalid keypad scan time supplied\n"); + return -EINVAL; + } + + if (!pdata->row_hold_ns || + pdata->row_hold_ns > MAX_ROW_HOLD_DELAY || + pdata->row_hold_ns < MIN_ROW_HOLD_DELAY || + ((pdata->row_hold_ns % MIN_ROW_HOLD_DELAY) != 0)) { + dev_err(&pdev->dev, "invalid keypad row hold time supplied\n"); + return -EINVAL; + } + + if (!pdata->debounce_ms || + ((pdata->debounce_ms % 5) != 0) || + pdata->debounce_ms > MAX_DEBOUNCE_TIME || + pdata->debounce_ms < MIN_DEBOUNCE_TIME) { + dev_err(&pdev->dev, "invalid debounce time supplied\n"); + return -EINVAL; + } + + keymap_data = pdata->keymap_data; + if (!keymap_data) { + dev_err(&pdev->dev, "no keymap data supplied\n"); + return -EINVAL; + } + + kp = kzalloc(sizeof(*kp), GFP_KERNEL); + if (!kp) + return -ENOMEM; + + platform_set_drvdata(pdev, kp); + + kp->pdata = pdata; + kp->dev = &pdev->dev; + + kp->input = input_allocate_device(); + if (!kp->input) { + dev_err(&pdev->dev, "unable to allocate input device\n"); + rc = -ENOMEM; + goto err_alloc_device; + } + + kp->key_sense_irq = platform_get_irq(pdev, 0); + if (kp->key_sense_irq < 0) { + dev_err(&pdev->dev, "unable to get keypad sense irq\n"); + rc = -ENXIO; + goto err_get_irq; + } + + kp->key_stuck_irq = platform_get_irq(pdev, 1); + if (kp->key_stuck_irq < 0) { + dev_err(&pdev->dev, "unable to get keypad stuck irq\n"); + rc = -ENXIO; + goto err_get_irq; + } + + kp->input->name = pdata->input_name ? : "PMIC8XXX keypad"; + kp->input->phys = pdata->input_phys_device ? : "pmic8xxx_keypad/input0"; + + kp->input->dev.parent = &pdev->dev; + + kp->input->id.bustype = BUS_I2C; + kp->input->id.version = 0x0001; + kp->input->id.product = 0x0001; + kp->input->id.vendor = 0x0001; + + kp->input->evbit[0] = BIT_MASK(EV_KEY); + + if (pdata->rep) + __set_bit(EV_REP, kp->input->evbit); + + kp->input->keycode = kp->keycodes; + kp->input->keycodemax = PM8XXX_MATRIX_MAX_SIZE; + kp->input->keycodesize = sizeof(kp->keycodes); + kp->input->open = pmic8xxx_kp_open; + kp->input->close = pmic8xxx_kp_close; + + matrix_keypad_build_keymap(keymap_data, PM8XXX_ROW_SHIFT, + kp->input->keycode, kp->input->keybit); + + input_set_capability(kp->input, EV_MSC, MSC_SCAN); + input_set_drvdata(kp->input, kp); + + /* initialize keypad state */ + memset(kp->keystate, 0xff, sizeof(kp->keystate)); + memset(kp->stuckstate, 0xff, sizeof(kp->stuckstate)); + + rc = pmic8xxx_kpd_init(kp); + if (rc < 0) { + dev_err(&pdev->dev, "unable to initialize keypad controller\n"); + goto err_get_irq; + } + + rc = pmic8xxx_kp_config_gpio(pdata->cols_gpio_start, + pdata->num_cols, kp, &kypd_sns); + if (rc < 0) { + dev_err(&pdev->dev, "unable to configure keypad sense lines\n"); + goto err_gpio_config; + } + + rc = pmic8xxx_kp_config_gpio(pdata->rows_gpio_start, + pdata->num_rows, kp, &kypd_drv); + if (rc < 0) { + dev_err(&pdev->dev, "unable to configure keypad drive lines\n"); + goto err_gpio_config; + } + + rc = request_any_context_irq(kp->key_sense_irq, pmic8xxx_kp_irq, + IRQF_TRIGGER_RISING, "pmic-keypad", kp); + if (rc < 0) { + dev_err(&pdev->dev, "failed to request keypad sense irq\n"); + goto err_get_irq; + } + + rc = request_any_context_irq(kp->key_stuck_irq, pmic8xxx_kp_stuck_irq, + IRQF_TRIGGER_RISING, "pmic-keypad-stuck", kp); + if (rc < 0) { + dev_err(&pdev->dev, "failed to request keypad stuck irq\n"); + goto err_req_stuck_irq; + } + + rc = pmic8xxx_kp_read_u8(kp, &ctrl_val, KEYP_CTRL); + if (rc < 0) { + dev_err(&pdev->dev, "failed to read KEYP_CTRL register\n"); + goto err_pmic_reg_read; + } + + kp->ctrl_reg = ctrl_val; + + rc = input_register_device(kp->input); + if (rc < 0) { + dev_err(&pdev->dev, "unable to register keypad input device\n"); + goto err_pmic_reg_read; + } + + device_init_wakeup(&pdev->dev, pdata->wakeup); + + return 0; + +err_pmic_reg_read: + free_irq(kp->key_stuck_irq, NULL); +err_req_stuck_irq: + free_irq(kp->key_sense_irq, NULL); +err_gpio_config: +err_get_irq: + input_free_device(kp->input); +err_alloc_device: + platform_set_drvdata(pdev, NULL); + kfree(kp); + return rc; +} + +static int __devexit pmic8xxx_kp_remove(struct platform_device *pdev) +{ + struct pmic8xxx_kp *kp = platform_get_drvdata(pdev); + + device_init_wakeup(&pdev->dev, 0); + free_irq(kp->key_stuck_irq, NULL); + free_irq(kp->key_sense_irq, NULL); + input_unregister_device(kp->input); + kfree(kp); + + platform_set_drvdata(pdev, NULL); + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int pmic8xxx_kp_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct pmic8xxx_kp *kp = platform_get_drvdata(pdev); + struct input_dev *input_dev = kp->input; + + if (device_may_wakeup(dev)) { + enable_irq_wake(kp->key_sense_irq); + } else { + mutex_lock(&input_dev->mutex); + + if (input_dev->users) + pmic8xxx_kp_disable(kp); + + mutex_unlock(&input_dev->mutex); + } + + return 0; +} + +static int pmic8xxx_kp_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct pmic8xxx_kp *kp = platform_get_drvdata(pdev); + struct input_dev *input_dev = kp->input; + + if (device_may_wakeup(dev)) { + disable_irq_wake(kp->key_sense_irq); + } else { + mutex_lock(&input_dev->mutex); + + if (input_dev->users) + pmic8xxx_kp_enable(kp); + + mutex_unlock(&input_dev->mutex); + } + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(pm8xxx_kp_pm_ops, + pmic8xxx_kp_suspend, pmic8xxx_kp_resume); + +static struct platform_driver pmic8xxx_kp_driver = { + .probe = pmic8xxx_kp_probe, + .remove = __devexit_p(pmic8xxx_kp_remove), + .driver = { + .name = PM8XXX_KEYPAD_DEV_NAME, + .owner = THIS_MODULE, + .pm = &pm8xxx_kp_pm_ops, + }, +}; + +static int __init pmic8xxx_kp_init(void) +{ + return platform_driver_register(&pmic8xxx_kp_driver); +} +module_init(pmic8xxx_kp_init); + +static void __exit pmic8xxx_kp_exit(void) +{ + platform_driver_unregister(&pmic8xxx_kp_driver); +} +module_exit(pmic8xxx_kp_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("PMIC8XXX keypad driver"); +MODULE_VERSION("1.0"); +MODULE_ALIAS("platform:pmic8xxx_keypad"); +MODULE_AUTHOR("Trilok Soni "); -- cgit v1.2.3 From 92d57a73e41047bff7d0812e06f893567876d455 Mon Sep 17 00:00:00 2001 From: Trilok Soni Date: Fri, 13 May 2011 15:17:51 +0530 Subject: input: Add support for Qualcomm PMIC8XXX power key Add support for PMIC8XXX power key driven over dedicated KYPD_PWR_N pin. Acked-by: Dmitry Torokhov Signed-off-by: Trilok Soni Signed-off-by: Anirudh Ghayal Signed-off-by: Samuel Ortiz --- drivers/input/misc/Kconfig | 11 ++ drivers/input/misc/Makefile | 1 + drivers/input/misc/pmic8xxx-pwrkey.c | 231 +++++++++++++++++++++++++++++++++++ 3 files changed, 243 insertions(+) create mode 100644 drivers/input/misc/pmic8xxx-pwrkey.c (limited to 'drivers/input') diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index f9cf0881b0e3..45dc6aa62ba4 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -330,6 +330,17 @@ config INPUT_PWM_BEEPER To compile this driver as a module, choose M here: the module will be called pwm-beeper. +config INPUT_PMIC8XXX_PWRKEY + tristate "PMIC8XXX power key support" + depends on MFD_PM8XXX + help + Say Y here if you want support for the PMIC8XXX power key. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called pmic8xxx-pwrkey. + config INPUT_GPIO_ROTARY_ENCODER tristate "Rotary encoders connected to GPIO pins" depends on GPIOLIB && GENERIC_GPIO diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile index e3f7984e6274..38efb2cb182b 100644 --- a/drivers/input/misc/Makefile +++ b/drivers/input/misc/Makefile @@ -33,6 +33,7 @@ obj-$(CONFIG_INPUT_PCF8574) += pcf8574_keypad.o obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o obj-$(CONFIG_INPUT_POWERMATE) += powermate.o obj-$(CONFIG_INPUT_PWM_BEEPER) += pwm-beeper.o +obj-$(CONFIG_INPUT_PMIC8XXX_PWRKEY) += pmic8xxx-pwrkey.o obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o diff --git a/drivers/input/misc/pmic8xxx-pwrkey.c b/drivers/input/misc/pmic8xxx-pwrkey.c new file mode 100644 index 000000000000..97e07e786e41 --- /dev/null +++ b/drivers/input/misc/pmic8xxx-pwrkey.c @@ -0,0 +1,231 @@ +/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#define PON_CNTL_1 0x1C +#define PON_CNTL_PULL_UP BIT(7) +#define PON_CNTL_TRIG_DELAY_MASK (0x7) + +/** + * struct pmic8xxx_pwrkey - pmic8xxx pwrkey information + * @key_press_irq: key press irq number + */ +struct pmic8xxx_pwrkey { + struct input_dev *pwr; + int key_press_irq; +}; + +static irqreturn_t pwrkey_press_irq(int irq, void *_pwrkey) +{ + struct pmic8xxx_pwrkey *pwrkey = _pwrkey; + + input_report_key(pwrkey->pwr, KEY_POWER, 1); + input_sync(pwrkey->pwr); + + return IRQ_HANDLED; +} + +static irqreturn_t pwrkey_release_irq(int irq, void *_pwrkey) +{ + struct pmic8xxx_pwrkey *pwrkey = _pwrkey; + + input_report_key(pwrkey->pwr, KEY_POWER, 0); + input_sync(pwrkey->pwr); + + return IRQ_HANDLED; +} + +#ifdef CONFIG_PM_SLEEP +static int pmic8xxx_pwrkey_suspend(struct device *dev) +{ + struct pmic8xxx_pwrkey *pwrkey = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) + enable_irq_wake(pwrkey->key_press_irq); + + return 0; +} + +static int pmic8xxx_pwrkey_resume(struct device *dev) +{ + struct pmic8xxx_pwrkey *pwrkey = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) + disable_irq_wake(pwrkey->key_press_irq); + + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(pm8xxx_pwr_key_pm_ops, + pmic8xxx_pwrkey_suspend, pmic8xxx_pwrkey_resume); + +static int __devinit pmic8xxx_pwrkey_probe(struct platform_device *pdev) +{ + struct input_dev *pwr; + int key_release_irq = platform_get_irq(pdev, 0); + int key_press_irq = platform_get_irq(pdev, 1); + int err; + unsigned int delay; + u8 pon_cntl; + struct pmic8xxx_pwrkey *pwrkey; + const struct pm8xxx_pwrkey_platform_data *pdata = mfd_get_data(pdev); + + if (!pdata) { + dev_err(&pdev->dev, "power key platform data not supplied\n"); + return -EINVAL; + } + + if (pdata->kpd_trigger_delay_us > 62500) { + dev_err(&pdev->dev, "invalid power key trigger delay\n"); + return -EINVAL; + } + + pwrkey = kzalloc(sizeof(*pwrkey), GFP_KERNEL); + if (!pwrkey) + return -ENOMEM; + + pwr = input_allocate_device(); + if (!pwr) { + dev_dbg(&pdev->dev, "Can't allocate power button\n"); + err = -ENOMEM; + goto free_pwrkey; + } + + input_set_capability(pwr, EV_KEY, KEY_POWER); + + pwr->name = "pmic8xxx_pwrkey"; + pwr->phys = "pmic8xxx_pwrkey/input0"; + pwr->dev.parent = &pdev->dev; + + delay = (pdata->kpd_trigger_delay_us << 10) / USEC_PER_SEC; + delay = 1 + ilog2(delay); + + err = pm8xxx_readb(pdev->dev.parent, PON_CNTL_1, &pon_cntl); + if (err < 0) { + dev_err(&pdev->dev, "failed reading PON_CNTL_1 err=%d\n", err); + goto free_input_dev; + } + + pon_cntl &= ~PON_CNTL_TRIG_DELAY_MASK; + pon_cntl |= (delay & PON_CNTL_TRIG_DELAY_MASK); + if (pdata->pull_up) + pon_cntl |= PON_CNTL_PULL_UP; + else + pon_cntl &= ~PON_CNTL_PULL_UP; + + err = pm8xxx_writeb(pdev->dev.parent, PON_CNTL_1, pon_cntl); + if (err < 0) { + dev_err(&pdev->dev, "failed writing PON_CNTL_1 err=%d\n", err); + goto free_input_dev; + } + + err = input_register_device(pwr); + if (err) { + dev_dbg(&pdev->dev, "Can't register power key: %d\n", err); + goto free_input_dev; + } + + pwrkey->key_press_irq = key_press_irq; + pwrkey->pwr = pwr; + + platform_set_drvdata(pdev, pwrkey); + + err = request_irq(key_press_irq, pwrkey_press_irq, + IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_press", pwrkey); + if (err < 0) { + dev_dbg(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n", + key_press_irq, err); + goto unreg_input_dev; + } + + err = request_irq(key_release_irq, pwrkey_release_irq, + IRQF_TRIGGER_RISING, "pmic8xxx_pwrkey_release", pwrkey); + if (err < 0) { + dev_dbg(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n", + key_release_irq, err); + + goto free_press_irq; + } + + device_init_wakeup(&pdev->dev, pdata->wakeup); + + return 0; + +free_press_irq: + free_irq(key_press_irq, NULL); +unreg_input_dev: + platform_set_drvdata(pdev, NULL); + input_unregister_device(pwr); + pwr = NULL; +free_input_dev: + input_free_device(pwr); +free_pwrkey: + kfree(pwrkey); + return err; +} + +static int __devexit pmic8xxx_pwrkey_remove(struct platform_device *pdev) +{ + struct pmic8xxx_pwrkey *pwrkey = platform_get_drvdata(pdev); + int key_release_irq = platform_get_irq(pdev, 0); + int key_press_irq = platform_get_irq(pdev, 1); + + device_init_wakeup(&pdev->dev, 0); + + free_irq(key_press_irq, pwrkey); + free_irq(key_release_irq, pwrkey); + input_unregister_device(pwrkey->pwr); + platform_set_drvdata(pdev, NULL); + kfree(pwrkey); + + return 0; +} + +static struct platform_driver pmic8xxx_pwrkey_driver = { + .probe = pmic8xxx_pwrkey_probe, + .remove = __devexit_p(pmic8xxx_pwrkey_remove), + .driver = { + .name = PM8XXX_PWRKEY_DEV_NAME, + .owner = THIS_MODULE, + .pm = &pm8xxx_pwr_key_pm_ops, + }, +}; + +static int __init pmic8xxx_pwrkey_init(void) +{ + return platform_driver_register(&pmic8xxx_pwrkey_driver); +} +module_init(pmic8xxx_pwrkey_init); + +static void __exit pmic8xxx_pwrkey_exit(void) +{ + platform_driver_unregister(&pmic8xxx_pwrkey_driver); +} +module_exit(pmic8xxx_pwrkey_exit); + +MODULE_ALIAS("platform:pmic8xxx_pwrkey"); +MODULE_DESCRIPTION("PMIC8XXX Power Key driver"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Trilok Soni "); 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