diff options
Diffstat (limited to 'drivers/input/touchscreen/gt1151/gt1x_extents.c')
| -rw-r--r-- | drivers/input/touchscreen/gt1151/gt1x_extents.c | 932 |
1 files changed, 932 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/gt1151/gt1x_extents.c b/drivers/input/touchscreen/gt1151/gt1x_extents.c new file mode 100644 index 000000000000..d0d215cc30a3 --- /dev/null +++ b/drivers/input/touchscreen/gt1151/gt1x_extents.c @@ -0,0 +1,932 @@ +/* drivers/input/touchscreen/gt1x_extents.c +* +* 2010 - 2014 Goodix Technology. +* +* 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, or +* (at your option) any later version. +* +* This program is distributed in the hope that it will be a reference +* to you, when you are integrating the GOODiX's CTP IC into your system, +* 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. +* +* Version: 1.4 +* Release Date: 2015/07/10 +*/ + +#include <linux/interrupt.h> +#include <linux/i2c.h> +#include <linux/sched.h> +#include <linux/kthread.h> +#include <linux/wait.h> +#include <linux/time.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/miscdevice.h> +#include <linux/input.h> + +#include <asm/uaccess.h> +#include <linux/proc_fs.h> /*proc */ + +#include <asm/ioctl.h> +#include "gt1x_generic.h" + +#if GTP_GESTURE_WAKEUP + +#define GESTURE_NODE "goodix_gesture" +#define GESTURE_MAX_POINT_COUNT 64 + +#pragma pack(1) +typedef struct { + u8 ic_msg[6]; /*from the first byte */ + u8 gestures[4]; + u8 data[3 + GESTURE_MAX_POINT_COUNT * 4 + 80]; /*80 bytes for extra data */ +} st_gesture_data; +#pragma pack() + +#define SETBIT(longlong, bit) (longlong[bit/8] |= (1 << bit%8)) +#define CLEARBIT(longlong, bit) (longlong[bit/8] &=(~(1 << bit%8))) +#define QUERYBIT(longlong, bit) (!!(longlong[bit/8] & (1 << bit%8))) + +#define CHKBITS_32 32 +#define CHKBITS_16 16 +#define CHKBITS_8 8 + +int gesture_enabled = 0; /* module switch */ +DOZE_T gesture_doze_status = DOZE_DISABLED; /* doze status */ + +static u8 gestures_flag[32]; /* gesture flag, every bit stands for a gesture */ +static st_gesture_data gesture_data; /* gesture data buffer */ +static struct mutex gesture_data_mutex; /* lock for gesture data */ + +static ssize_t gt1x_gesture_data_read(struct file *file, char __user * page, size_t size, loff_t * ppos) +{ + s32 ret = -1; + GTP_DEBUG("visit gt1x_gesture_data_read. ppos:%d", (int)*ppos); + if (*ppos) { + return 0; + } + if (size == 4) { + ret = copy_to_user(((u8 __user *) page), "GT1X", 4); + return 4; + } + ret = simple_read_from_buffer(page, size, ppos, &gesture_data, sizeof(gesture_data)); + + GTP_DEBUG("Got the gesture data."); + return ret; +} + +static ssize_t gt1x_gesture_data_write(struct file *filp, const char __user * buff, size_t len, loff_t * off) +{ + s32 ret = 0; + + GTP_DEBUG_FUNC(); + + ret = copy_from_user(&gesture_enabled, buff, 1); + if (ret) { + GTP_ERROR("copy_from_user failed."); + return -EPERM; + } + + GTP_DEBUG("gesture enabled:%x, ret:%d", gesture_enabled, ret); + + return len; +} + +/** +* calc_checksum - Calc checksum. +* @buf: data to be calc +* @len: length of buf. +* @bits: checkbits +* Return true-pass, false:not pass. +*/ +static bool calc_checksum(u8 *buf, int len, int bits) +{ + int i; + + if (bits == CHKBITS_16) { + u16 chksum, *b = (u16 *)buf; + + if (len % 2) { + return false; + } + + len /= 2; + for (i = 0, chksum = 0; i < len; i++) { + if (i == len - 1) + chksum += le16_to_cpu(b[i]); + else + chksum += be16_to_cpu(b[i]); + } + return chksum == 0 ? true : false; + } else if (bits == CHKBITS_8) { + u8 chksum; + + for (i = 0, chksum =0; i < len; i++) { + chksum += buf[i]; + } + return chksum == 0 ? true : false; + } + + return false; +} + +int gesture_enter_doze(void) +{ + int retry = 0; + + GTP_DEBUG_FUNC(); + GTP_DEBUG("Entering doze mode..."); + while (retry++ < 5) { + if (!gt1x_send_cmd(0x08, 0)) { + gesture_doze_status = DOZE_ENABLED; + GTP_DEBUG("Working in doze mode!"); + return 0; + } + msleep(10); + } + GTP_ERROR("Send doze cmd failed."); + return -1; +} + +s32 gesture_event_handler(struct input_dev * dev) +{ + u8 doze_buf[4] = { 0 }, ges_type; + static int err_flag1 = 0, err_flag2 = 0; + int len, extra_len, need_chk; + unsigned int key_code; + s32 ret = 0; + + if (DOZE_ENABLED != gesture_doze_status) { + return -1; + } + + /** package: -head 4B + track points + extra info- + * - head - + * doze_buf[0]: gesture type, + * doze_buf[1]: number of gesture points , + * doze_buf[2]: protocol type, + * doze_buf[3]: gesture extra data length. + */ + ret = gt1x_i2c_read(GTP_REG_WAKEUP_GESTURE, doze_buf, 4); + if (ret < 0) { + return 0; + } + + ges_type = doze_buf[0]; + len = doze_buf[1]; + need_chk = doze_buf[2] & 0x80; + extra_len = doze_buf[3]; + + GTP_DEBUG("0x%x = 0x%02X,0x%02X,0x%02X,0x%02X", GTP_REG_WAKEUP_GESTURE, + doze_buf[0], doze_buf[1], doze_buf[2], doze_buf[3]); + + if (len > GESTURE_MAX_POINT_COUNT) { + GTP_ERROR("Gesture contain too many points!(%d)", len); + len = GESTURE_MAX_POINT_COUNT; + } + + if (extra_len > 32) { + GTP_ERROR("Gesture contain too many extra data!(%d)", extra_len); + extra_len = 32; + } + + /* get gesture extra info */ + if (extra_len >= 0) { + u8 ges_data[extra_len + 1]; + + /* head 4 + extra data * 4 + chksum 1 */ + ret = gt1x_i2c_read(GTP_REG_WAKEUP_GESTURE + 4, + ges_data, extra_len + 1); + if (ret < 0) { + GTP_ERROR("Read extra gesture data failed."); + return 0; + } + + if (likely(need_chk)) { /* calc checksum */ + bool val; + + ges_data[extra_len] += doze_buf[0] + doze_buf[1] + + doze_buf[2] + doze_buf[3]; + + val = calc_checksum(ges_data, extra_len + 1, CHKBITS_8); + if (unlikely(!val)) { /* check failed */ + GTP_ERROR("Gesture checksum error."); + if (err_flag1) { + err_flag1 = 0; + ret = 0; + goto clear_reg; + } else { + /* just return 0 without clear reg, + this will receive another int, we + check the data in the next frame */ + err_flag1 = 1; + return 0; + } + } + + err_flag1 = 0; + } + + mutex_lock(&gesture_data_mutex); + memcpy(&gesture_data.data[4 + len * 4], ges_data, extra_len); + mutex_unlock(&gesture_data_mutex); + } + + /* check gesture type (if available?) */ + if (ges_type == 0 || !QUERYBIT(gestures_flag, ges_type)) { + GTP_INFO("Gesture[0x%02X] has been disabled.", doze_buf[0]); + doze_buf[0] = 0x00; + gt1x_i2c_write(GTP_REG_WAKEUP_GESTURE, doze_buf, 1); + gesture_enter_doze(); + return 0; + } + + /* get gesture point data */ + if (len > 0) { /* coor num * 4 + chksum 2*/ + u8 ges_data[len * 4 + 2]; + + ret = gt1x_i2c_read(GES_BUFFER_ADDR, ges_data, len * 4); + if (ret < 0) { + GTP_ERROR("Read gesture data failed."); + return 0; + } + + /* checksum reg for gesture point data */ + ret = gt1x_i2c_read(0x819F, &ges_data[len * 4], 2); + if (ret < 0) { + GTP_ERROR("Read gesture data failed."); + return 0; + } + + if (likely(need_chk)) { + bool val = calc_checksum(ges_data, + len * 4 + 2, CHKBITS_16); + if (unlikely(!val)) { /* check failed */ + GTP_ERROR("Gesture checksum error."); + if (err_flag2) { + err_flag2 = 0; + ret = 0; + goto clear_reg; + } else { + err_flag2 = 1; + return 0; + } + } + + err_flag2 = 0; + } + + mutex_lock(&gesture_data_mutex); + memcpy(&gesture_data.data[4], ges_data, len * 4); + mutex_unlock(&gesture_data_mutex); + } + + mutex_lock(&gesture_data_mutex); + gesture_data.data[0] = ges_type; // gesture type + gesture_data.data[1] = len; // gesture points number + gesture_data.data[2] = doze_buf[2] & 0x7F; // protocol type + gesture_data.data[3] = extra_len; // gesture date length + mutex_unlock(&gesture_data_mutex); + + /* get key code */ + key_code = ges_type < 16? KEY_GES_CUSTOM : KEY_GES_REGULAR; + GTP_DEBUG("Gesture: 0x%02X, points: %d", doze_buf[0], doze_buf[1]); + + input_report_key(dev, key_code, 1); + input_sync(dev); + input_report_key(dev, key_code, 0); + input_sync(dev); + +clear_reg: + doze_buf[0] = 0; // clear ges flag + gt1x_i2c_write(GTP_REG_WAKEUP_GESTURE, doze_buf, 1); + return ret; +} + +void gesture_clear_wakeup_data(void) +{ + mutex_lock(&gesture_data_mutex); + memset(gesture_data.data, 0, 4); + mutex_unlock(&gesture_data_mutex); +} + +void gt1x_gesture_debug(int on) +{ + if (on) { + gesture_enabled = 1; + memset(gestures_flag, 0xFF, sizeof(gestures_flag)); + } else { + gesture_enabled = 0; + memset(gestures_flag, 0x00, sizeof(gestures_flag)); + gesture_doze_status = DOZE_DISABLED; + } + GTP_DEBUG("Gesture debug %s", on ? "on":"off"); +} + +#endif // GTP_GESTURE_WAKEUP + +//HotKnot module +#if GTP_HOTKNOT +#define HOTKNOT_NODE "hotknot" +#define HOTKNOT_VERSION "GOODIX,GT1X" +u8 hotknot_enabled = 0; +u8 hotknot_transfer_mode = 0; + +static int hotknot_open(struct inode *node, struct file *flip) +{ + GTP_DEBUG("Hotknot is enabled."); + hotknot_enabled = 1; + return 0; +} + +static int hotknot_release(struct inode *node, struct file *filp) +{ + GTP_DEBUG("Hotknot is disabled."); + hotknot_enabled = 0; + return 0; +} + +static s32 hotknot_enter_transfer_mode(void) +{ + int ret = 0; + u8 buffer[5] = { 0 }; + + hotknot_transfer_mode = 1; +#if GTP_ESD_PROTECT + gt1x_esd_switch(SWITCH_OFF); +#endif + + gt1x_irq_disable(); + gt1x_send_cmd(GTP_CMD_HN_TRANSFER, 0); + msleep(100); + gt1x_irq_enable(); + + ret = gt1x_i2c_read(0x8140, buffer, sizeof(buffer)); + if (ret) { + hotknot_transfer_mode = 0; + return ret; + } + + buffer[4] = 0; + GTP_DEBUG("enter transfer mode: %s ", buffer); + if (strcmp(buffer, "GHot")) { + hotknot_transfer_mode = 0; + return ERROR_HN_VER; + } + + return 0; +} + +static s32 hotknot_load_hotknot_subsystem(void) +{ + return hotknot_enter_transfer_mode(); +} + +static s32 hotknot_load_authentication_subsystem(void) +{ + s32 ret = 0; + u8 buffer[5] = { 0 }; + ret = gt1x_hold_ss51_dsp_no_reset(); + if (ret < 0) { + GTP_ERROR("Hold ss51 fail!"); + return ERROR; + } + + if (gt1x_chip_type == CHIP_TYPE_GT1X) { + GTP_INFO("hotknot load jump code."); + ret = gt1x_load_patch(gt1x_patch_jump_fw, 4096, 0, 1024 * 8); + if (ret < 0) { + GTP_ERROR("Load jump code fail!"); + return ret; + } + GTP_INFO("hotknot load auth code."); + ret = gt1x_load_patch(hotknot_auth_fw, 4096, 4096, 1024 * 8); + if (ret < 0) { + GTP_ERROR("Load auth system fail!"); + return ret; + } + } else { /* GT2X */ + GTP_INFO("hotknot load auth code."); + ret = gt1x_load_patch(hotknot_auth_fw, 4096, 0, 1024 * 6); + if (ret < 0) { + GTP_ERROR("load auth system fail!"); + return ret; + } + } + + ret = gt1x_startup_patch(); + if (ret < 0) { + GTP_ERROR("Startup auth system fail!"); + return ret; + } + ret = gt1x_i2c_read(GTP_REG_VERSION, buffer, 4); + if (ret < 0) { + GTP_ERROR("i2c read error!"); + return ERROR_IIC; + } + buffer[4] = 0; + GTP_INFO("Current System version: %s", buffer); + return 0; +} + +static s32 hotknot_recovery_main_system(void) +{ + gt1x_irq_disable(); + gt1x_reset_guitar(); + gt1x_irq_enable(); +#if GTP_ESD_PROTECT + gt1x_esd_switch(SWITCH_ON); +#endif + hotknot_transfer_mode = 0; + return 0; +} + +#if HOTKNOT_BLOCK_RW +DECLARE_WAIT_QUEUE_HEAD(bp_waiter); +static u8 got_hotknot_state = 0; +static u8 got_hotknot_extra_state = 0; +static u8 wait_hotknot_state = 0; +static u8 force_wake_flag = 0; +static u8 block_enable = 0; +s32 hotknot_paired_flag = 0; + +static s32 hotknot_block_rw(u8 rqst_hotknot_state, s32 wait_hotknot_timeout) +{ + s32 ret = 0; + + wait_hotknot_state |= rqst_hotknot_state; + GTP_DEBUG("Goodix tool received wait polling state:0x%x,timeout:%d, all wait state:0x%x", rqst_hotknot_state, wait_hotknot_timeout, wait_hotknot_state); + got_hotknot_state &= (~rqst_hotknot_state); + + set_current_state(TASK_INTERRUPTIBLE); + if (wait_hotknot_timeout <= 0) { + wait_event_interruptible(bp_waiter, force_wake_flag || rqst_hotknot_state == (got_hotknot_state & rqst_hotknot_state)); + } else { + wait_event_interruptible_timeout(bp_waiter, force_wake_flag || rqst_hotknot_state == (got_hotknot_state & rqst_hotknot_state), wait_hotknot_timeout); + } + + wait_hotknot_state &= (~rqst_hotknot_state); + + if (rqst_hotknot_state != (got_hotknot_state & rqst_hotknot_state)) { + GTP_ERROR("Wait 0x%x block polling waiter failed.", rqst_hotknot_state); + ret = -1; + } + + force_wake_flag = 0; + return ret; +} + +static void hotknot_wakeup_block(void) +{ + GTP_DEBUG("Manual wakeup all block polling waiter!"); + got_hotknot_state = 0; + wait_hotknot_state = 0; + force_wake_flag = 1; + wake_up_interruptible(&bp_waiter); +} + +s32 hotknot_event_handler(u8 * data) +{ + u8 hn_pxy_state = 0; + u8 hn_pxy_state_bak = 0; + static u8 hn_paired_cnt = 0; + u8 hn_state_buf[10] = { 0 }; + u8 finger = data[0]; + u8 id = 0; + + if (block_enable && !hotknot_paired_flag && (finger & 0x0F)) { + id = data[1]; + hn_pxy_state = data[2] & 0x80; + hn_pxy_state_bak = data[3] & 0x80; + if ((32 == id) && (0x80 == hn_pxy_state) && (0x80 == hn_pxy_state_bak)) { +#ifdef HN_DBLCFM_PAIRED + if (hn_paired_cnt++ < 2) { + return 0; + } +#endif + GTP_DEBUG("HotKnot paired!"); + if (wait_hotknot_state & HN_DEVICE_PAIRED) { + GTP_DEBUG("INT wakeup HN_DEVICE_PAIRED block polling waiter"); + got_hotknot_state |= HN_DEVICE_PAIRED; + wake_up_interruptible(&bp_waiter); + } + block_enable = 0; + hotknot_paired_flag = 1; + return 0; + } else { + got_hotknot_state &= (~HN_DEVICE_PAIRED); + hn_paired_cnt = 0; + } + } + + if (hotknot_paired_flag) { + s32 ret = -1; + ret = gt1x_i2c_read(GTP_REG_HN_STATE, hn_state_buf, 6); + if (ret < 0) { + GTP_ERROR("I2C transfer error. errno:%d\n ", ret); + return 0; + } + + got_hotknot_state = 0; + + GTP_DEBUG("wait_hotknot_state:%x", wait_hotknot_state); + GTP_DEBUG("[0x8800~0x8803]=0x%x,0x%x,0x%x,0x%x", hn_state_buf[0], hn_state_buf[1], hn_state_buf[2], hn_state_buf[3]); + + if (wait_hotknot_state & HN_MASTER_SEND) { + if ((0x03 == hn_state_buf[0]) || (0x04 == hn_state_buf[0]) + || (0x07 == hn_state_buf[0])) { + GTP_DEBUG("Wakeup HN_MASTER_SEND block polling waiter"); + got_hotknot_state |= HN_MASTER_SEND; + got_hotknot_extra_state = hn_state_buf[0]; + wake_up_interruptible(&bp_waiter); + } + } else if (wait_hotknot_state & HN_SLAVE_RECEIVED) { + if ((0x03 == hn_state_buf[1]) || (0x04 == hn_state_buf[1]) + || (0x07 == hn_state_buf[1])) { + GTP_DEBUG("Wakeup HN_SLAVE_RECEIVED block polling waiter:0x%x", hn_state_buf[1]); + got_hotknot_state |= HN_SLAVE_RECEIVED; + got_hotknot_extra_state = hn_state_buf[1]; + wake_up_interruptible(&bp_waiter); + } + } else if (wait_hotknot_state & HN_MASTER_DEPARTED) { + if (0x07 == hn_state_buf[0]) { + GTP_DEBUG("Wakeup HN_MASTER_DEPARTED block polling waiter"); + got_hotknot_state |= HN_MASTER_DEPARTED; + wake_up_interruptible(&bp_waiter); + } + } else if (wait_hotknot_state & HN_SLAVE_DEPARTED) { + if (0x07 == hn_state_buf[1]) { + GTP_DEBUG("Wakeup HN_SLAVE_DEPARTED block polling waiter"); + got_hotknot_state |= HN_SLAVE_DEPARTED; + wake_up_interruptible(&bp_waiter); + } + } + return 0; + } + + return -1; +} +#endif //HOTKNOT_BLOCK_RW +#endif //GTP_HOTKNOT + +#define GOODIX_MAGIC_NUMBER 'G' +#define NEGLECT_SIZE_MASK (~(_IOC_SIZEMASK << _IOC_SIZESHIFT)) + +#define GESTURE_ENABLE _IO(GOODIX_MAGIC_NUMBER, 1) // 1 +#define GESTURE_DISABLE _IO(GOODIX_MAGIC_NUMBER, 2) +#define GESTURE_FLAG_SET _IO(GOODIX_MAGIC_NUMBER, 3) +#define GESTURE_FLAG_CLEAR _IO(GOODIX_MAGIC_NUMBER, 4) +//#define SET_ENABLED_GESTURE (_IOW(GOODIX_MAGIC_NUMBER, 5, u8) & NEGLECT_SIZE_MASK) +#define GESTURE_DATA_OBTAIN (_IOR(GOODIX_MAGIC_NUMBER, 6, u8) & NEGLECT_SIZE_MASK) +#define GESTURE_DATA_ERASE _IO(GOODIX_MAGIC_NUMBER, 7) + +//#define HOTKNOT_LOAD_SUBSYSTEM (_IOW(GOODIX_MAGIC_NUMBER, 6, u8) & NEGLECT_SIZE_MASK) +#define HOTKNOT_LOAD_HOTKNOT _IO(GOODIX_MAGIC_NUMBER, 20) +#define HOTKNOT_LOAD_AUTHENTICATION _IO(GOODIX_MAGIC_NUMBER, 21) +#define HOTKNOT_RECOVERY_MAIN _IO(GOODIX_MAGIC_NUMBER, 22) +//#define HOTKNOT_BLOCK_RW (_IOW(GOODIX_MAGIC_NUMBER, 6, u8) & NEGLECT_SIZE_MASK) +#define HOTKNOT_DEVICES_PAIRED _IO(GOODIX_MAGIC_NUMBER, 23) +#define HOTKNOT_MASTER_SEND _IO(GOODIX_MAGIC_NUMBER, 24) +#define HOTKNOT_SLAVE_RECEIVE _IO(GOODIX_MAGIC_NUMBER, 25) +//#define HOTKNOT_DEVICES_COMMUNICATION +#define HOTKNOT_MASTER_DEPARTED _IO(GOODIX_MAGIC_NUMBER, 26) +#define HOTKNOT_SLAVE_DEPARTED _IO(GOODIX_MAGIC_NUMBER, 27) +#define HOTKNOT_VENDOR_VERSION (_IOR(GOODIX_MAGIC_NUMBER, 28, u8) & NEGLECT_SIZE_MASK) +#define HOTKNOT_WAKEUP_BLOCK _IO(GOODIX_MAGIC_NUMBER, 29) + +#define IO_IIC_READ (_IOR(GOODIX_MAGIC_NUMBER, 100, u8) & NEGLECT_SIZE_MASK) +#define IO_IIC_WRITE (_IOW(GOODIX_MAGIC_NUMBER, 101, u8) & NEGLECT_SIZE_MASK) +#define IO_RESET_GUITAR _IO(GOODIX_MAGIC_NUMBER, 102) +#define IO_DISABLE_IRQ _IO(GOODIX_MAGIC_NUMBER, 103) +#define IO_ENABLE_IRQ _IO(GOODIX_MAGIC_NUMBER, 104) +#define IO_GET_VERISON (_IOR(GOODIX_MAGIC_NUMBER, 110, u8) & NEGLECT_SIZE_MASK) +#define IO_PRINT (_IOW(GOODIX_MAGIC_NUMBER, 111, u8) & NEGLECT_SIZE_MASK) +#define IO_VERSION "V1.3-20150420" + +#define CMD_HEAD_LENGTH 20 +static s32 io_iic_read(u8 * data, void __user * arg) +{ + s32 err = ERROR; + s32 data_length = 0; + u16 addr = 0; + + err = copy_from_user(data, arg, CMD_HEAD_LENGTH); + if (err) { + GTP_ERROR("Can't access the memory."); + return ERROR_MEM; + } + + addr = data[0] << 8 | data[1]; + data_length = data[2] << 8 | data[3]; + + err = gt1x_i2c_read(addr, &data[CMD_HEAD_LENGTH], data_length); + if (!err) { + err = copy_to_user(&((u8 __user *) arg)[CMD_HEAD_LENGTH], &data[CMD_HEAD_LENGTH], data_length); + if (err) { + GTP_ERROR("ERROR when copy to user.[addr: %04x], [read length:%d]", addr, data_length); + return ERROR_MEM; + } + err = CMD_HEAD_LENGTH + data_length; + } + //GTP_DEBUG("IIC_READ.addr:0x%4x, length:%d, ret:%d", addr, data_length, err); + //GTP_DEBUG_ARRAY((&data[CMD_HEAD_LENGTH]), data_length); + + return err; +} + +static s32 io_iic_write(u8 * data) +{ + s32 err = ERROR; + s32 data_length = 0; + u16 addr = 0; + + addr = data[0] << 8 | data[1]; + data_length = data[2] << 8 | data[3]; + + err = gt1x_i2c_write(addr, &data[CMD_HEAD_LENGTH], data_length); + if (!err) { + err = CMD_HEAD_LENGTH + data_length; + } + + //GTP_DEBUG("IIC_WRITE.addr:0x%4x, length:%d, ret:%d", addr, data_length, err); + //GTP_DEBUG_ARRAY((&data[CMD_HEAD_LENGTH]), data_length); + return err; +} + +//@return, 0:operate successfully +// > 0: the length of memory size ioctl has accessed, +// error otherwise. +static long gt1x_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + u32 value = 0; + s32 ret = 0; //the initial value must be 0 + u8 *data = NULL; + +#if GTP_AUTO_UPDATE + int cnt = 30; + /* Blocking when firmwaer updating */ + while (cnt-- && update_info.status) { + ssleep(1); + } +#endif + + //GTP_DEBUG("IOCTL CMD:%x", cmd); + /* GTP_DEBUG("command:%d, length:%d, rw:%s", + _IOC_NR(cmd), + _IOC_SIZE(cmd), + (_IOC_DIR(cmd) & _IOC_READ) ? "read" : (_IOC_DIR(cmd) & _IOC_WRITE) ? "write" : "-"); + */ + + if (_IOC_DIR(cmd)) { + s32 err = -1; + s32 data_length = _IOC_SIZE(cmd); + data = (u8 *) kzalloc(data_length, GFP_KERNEL); + memset(data, 0, data_length); + + if (_IOC_DIR(cmd) & _IOC_WRITE) { + err = copy_from_user(data, (void __user *)arg, data_length); + if (err) { + GTP_ERROR("Can't access the memory."); + kfree(data); + return -1; + } + } + } else { + value = (u32) arg; + } + + switch (cmd & NEGLECT_SIZE_MASK) { + case IO_GET_VERISON: + if ((u8 __user *) arg) { + ret = copy_to_user(((u8 __user *) arg), IO_VERSION, sizeof(IO_VERSION)); + if (!ret) { + ret = sizeof(IO_VERSION); + } + GTP_INFO("%s", IO_VERSION); + } + break; + case IO_IIC_READ: + ret = io_iic_read(data, (void __user *)arg); + break; + + case IO_IIC_WRITE: + ret = io_iic_write(data); + break; + + case IO_RESET_GUITAR: + gt1x_irq_disable(); + gt1x_reset_guitar(); + gt1x_irq_enable(); + break; + + case IO_DISABLE_IRQ: + gt1x_irq_disable(); +#if GTP_ESD_PROTECT + gt1x_esd_switch(SWITCH_OFF); +#endif + break; + + case IO_ENABLE_IRQ: + gt1x_irq_enable(); +#if GTP_ESD_PROTECT + gt1x_esd_switch(SWITCH_ON); +#endif + break; + + //print a string to syc log messages between application and kernel. + case IO_PRINT: + if (data) + GTP_INFO("%s", (char *)data); + break; + +#if GTP_GESTURE_WAKEUP + case GESTURE_ENABLE: + GTP_DEBUG("Gesture switch ON."); + gesture_enabled = 1; + break; + + case GESTURE_DISABLE: + GTP_DEBUG("Gesture switch OFF."); + gesture_enabled = 0; + break; + + case GESTURE_FLAG_SET: + SETBIT(gestures_flag, (u8) value); + GTP_DEBUG("Gesture flag: 0x%02X enabled.", value); + break; + + case GESTURE_FLAG_CLEAR: + CLEARBIT(gestures_flag, (u8) value); + GTP_DEBUG("Gesture flag: 0x%02X disabled.", value); + break; + + case GESTURE_DATA_OBTAIN: + GTP_DEBUG("Obtain gesture data."); + mutex_lock(&gesture_data_mutex); + ret = copy_to_user(((u8 __user *) arg), &gesture_data.data, 4 + gesture_data.data[1] * 4 + gesture_data.data[3]); + if (ret) { + GTP_ERROR("ERROR when copy gesture data to user."); + ret = ERROR_MEM; + } else { + ret = 4 + gesture_data.data[1] * 4 + gesture_data.data[3]; + } + mutex_unlock(&gesture_data_mutex); + break; + + case GESTURE_DATA_ERASE: + GTP_DEBUG("ERASE_GESTURE_DATA"); + gesture_clear_wakeup_data(); + break; +#endif // GTP_GESTURE_WAKEUP + +#if GTP_HOTKNOT + case HOTKNOT_VENDOR_VERSION: + ret = copy_to_user(((u8 __user *) arg), HOTKNOT_VERSION, sizeof(HOTKNOT_VERSION)); + if (!ret) { + ret = sizeof(HOTKNOT_VERSION); + } + break; + case HOTKNOT_LOAD_HOTKNOT: + ret = hotknot_load_hotknot_subsystem(); + break; + + case HOTKNOT_LOAD_AUTHENTICATION: +#if GTP_ESD_PROTECT + gt1x_esd_switch(SWITCH_OFF); +#endif + ret = hotknot_load_authentication_subsystem(); + break; + + case HOTKNOT_RECOVERY_MAIN: + ret = hotknot_recovery_main_system(); + break; +#if HOTKNOT_BLOCK_RW + case HOTKNOT_DEVICES_PAIRED: + hotknot_paired_flag = 0; + force_wake_flag = 0; + block_enable = 1; + ret = hotknot_block_rw(HN_DEVICE_PAIRED, (s32) value); + break; + + case HOTKNOT_MASTER_SEND: + ret = hotknot_block_rw(HN_MASTER_SEND, (s32) value); + if (!ret) + ret = got_hotknot_extra_state; + break; + + case HOTKNOT_SLAVE_RECEIVE: + ret = hotknot_block_rw(HN_SLAVE_RECEIVED, (s32) value); + if (!ret) + ret = got_hotknot_extra_state; + break; + + case HOTKNOT_MASTER_DEPARTED: + ret = hotknot_block_rw(HN_MASTER_DEPARTED, (s32) value); + break; + + case HOTKNOT_SLAVE_DEPARTED: + ret = hotknot_block_rw(HN_SLAVE_DEPARTED, (s32) value); + break; + + case HOTKNOT_WAKEUP_BLOCK: + hotknot_wakeup_block(); + break; +#endif //HOTKNOT_BLOCK_RW +#endif //GTP_HOTKNOT + + default: + GTP_INFO("Unknown cmd."); + ret = -1; + break; + } + + if (data != NULL) { + kfree(data); + } + + return ret; +} + +#ifdef CONFIG_COMPAT +static long gt1x_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + void __user *arg32 = compat_ptr(arg); + + if (!file->f_op || !file->f_op->unlocked_ioctl) + return -ENOTTY; + + return file->f_op->unlocked_ioctl(file, cmd, (unsigned long)arg32); +} +#endif + +static const struct file_operations gt1x_fops = { + .owner = THIS_MODULE, +#if GTP_GESTURE_WAKEUP + .read = gt1x_gesture_data_read, + .write = gt1x_gesture_data_write, +#endif + .unlocked_ioctl = gt1x_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = gt1x_compat_ioctl, +#endif +}; + +#if GTP_HOTKNOT +static const struct file_operations hotknot_fops = { + .open = hotknot_open, + .release = hotknot_release, + .unlocked_ioctl = gt1x_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = gt1x_compat_ioctl, +#endif +}; + +static struct miscdevice hotknot_misc_device = { + .minor = MISC_DYNAMIC_MINOR, + .name = HOTKNOT_NODE, + .fops = &hotknot_fops, +}; +#endif + +s32 gt1x_init_node(void) +{ +#if GTP_GESTURE_WAKEUP + struct proc_dir_entry *proc_entry = NULL; + mutex_init(&gesture_data_mutex); + memset(gestures_flag, 0, sizeof(gestures_flag)); + memset((u8 *) & gesture_data, 0, sizeof(st_gesture_data)); + + proc_entry = proc_create(GESTURE_NODE, 0666, NULL, >1x_fops); + if (proc_entry == NULL) { + GTP_ERROR("CAN't create proc entry /proc/%s.", GESTURE_NODE); + return -1; + } else { + GTP_INFO("Created proc entry /proc/%s.", GESTURE_NODE); + } +#endif + +#if GTP_HOTKNOT + if (misc_register(&hotknot_misc_device)) { + GTP_ERROR("CAN't create misc device in /dev/hotknot."); + return -1; + } else { + GTP_INFO("Created misc device in /dev/hotknot."); + } +#endif + return 0; +} + +void gt1x_deinit_node(void) +{ +#if GTP_GESTURE_WAKEUP + remove_proc_entry(GESTURE_NODE, NULL); +#endif + +#if GTP_HOTKNOT + misc_deregister(&hotknot_misc_device); +#endif +} |