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-rw-r--r--liblight/lights.c386
1 files changed, 0 insertions, 386 deletions
diff --git a/liblight/lights.c b/liblight/lights.c
deleted file mode 100644
index 14777a5..0000000
--- a/liblight/lights.c
+++ /dev/null
@@ -1,386 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- * Copyright (C) 2014 The Linux Foundation. All rights reserved.
- * Copyright (C) 2015 The CyanogenMod Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "lights"
-
-#include <cutils/log.h>
-
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <pthread.h>
-
-#include <sys/ioctl.h>
-#include <sys/types.h>
-
-#include <hardware/lights.h>
-
-/******************************************************************************/
-
-static pthread_once_t g_init = PTHREAD_ONCE_INIT;
-static pthread_mutex_t g_lock = PTHREAD_MUTEX_INITIALIZER;
-static struct light_state_t g_attention;
-static struct light_state_t g_notification;
-static struct light_state_t g_battery;
-
-char const*const RED_LED_FILE
- = "/sys/class/leds/led:rgb_red/brightness";
-
-char const*const LCD_FILE
- = "/sys/class/leds/lcd-backlight/brightness";
-
-char const*const RED_DUTY_PCTS_FILE
- = "/sys/class/leds/led:rgb_red/duty_pcts";
-
-char const*const RED_START_IDX_FILE
- = "/sys/class/leds/led:rgb_red/start_idx";
-
-char const*const RED_PAUSE_LO_FILE
- = "/sys/class/leds/led:rgb_red/pause_lo";
-
-char const*const RED_PAUSE_HI_FILE
- = "/sys/class/leds/led:rgb_red/pause_hi";
-
-char const*const RED_RAMP_STEP_MS_FILE
- = "/sys/class/leds/led:rgb_red/ramp_step_ms";
-
-char const*const RED_BLINK_FILE
- = "/sys/class/leds/led:rgb_red/blink";
-
-#define RAMP_SIZE 8
-static int BRIGHTNESS_RAMP[RAMP_SIZE]
- = { 0, 12, 25, 37, 50, 72, 85, 100 };
-#define RAMP_STEP_DURATION 50
-
-/**
- * device methods
- */
-
-void init_globals(void)
-{
- // init the mutex
- pthread_mutex_init(&g_lock, NULL);
-}
-
-static int
-write_int(char const* path, int value)
-{
- int fd;
- static int already_warned = 0;
-
- fd = open(path, O_RDWR);
- if (fd >= 0) {
- char buffer[20];
- int bytes = snprintf(buffer, sizeof(buffer), "%d\n", value);
- ssize_t amt = write(fd, buffer, (size_t)bytes);
- close(fd);
- return amt == -1 ? -errno : 0;
- } else {
- if (already_warned == 0) {
- ALOGE("write_int failed to open %s\n", path);
- already_warned = 1;
- }
- return -errno;
- }
-}
-
-static int
-write_str(char const* path, char* value)
-{
- int fd;
- static int already_warned = 0;
-
- fd = open(path, O_RDWR);
- if (fd >= 0) {
- char buffer[1024];
- int bytes = snprintf(buffer, sizeof(buffer), "%s\n", value);
- ssize_t amt = write(fd, buffer, (size_t)bytes);
- close(fd);
- return amt == -1 ? -errno : 0;
- } else {
- if (already_warned == 0) {
- ALOGE("write_int failed to open %s\n", path);
- already_warned = 1;
- }
- return -errno;
- }
-}
-
-static int
-is_lit(struct light_state_t const* state)
-{
- return state->color & 0x00ffffff;
-}
-
-static int
-rgb_to_brightness(struct light_state_t const* state)
-{
- int color = state->color & 0x00ffffff;
- return ((77*((color>>16)&0x00ff))
- + (150*((color>>8)&0x00ff)) + (29*(color&0x00ff))) >> 8;
-}
-
-static int
-set_light_backlight(struct light_device_t* dev,
- struct light_state_t const* state)
-{
- int err = 0;
- int brightness = rgb_to_brightness(state);
- if(!dev) {
- return -1;
- }
- pthread_mutex_lock(&g_lock);
- err = write_int(LCD_FILE, brightness);
- pthread_mutex_unlock(&g_lock);
- return err;
-}
-
-
-static char*
-get_scaled_duty_pcts(int brightness)
-{
- char *buf = malloc(5 * RAMP_SIZE * sizeof(char));
- char *pad = "";
- int i = 0;
-
- memset(buf, 0, 5 * RAMP_SIZE * sizeof(char));
-
- for (i = 0; i < RAMP_SIZE; i++) {
- char temp[5] = "";
- snprintf(temp, sizeof(temp), "%s%d", pad, (BRIGHTNESS_RAMP[i] * brightness / 255));
- strcat(buf, temp);
- pad = ",";
- }
- ALOGV("%s: brightness=%d duty=%s", __func__, brightness, buf);
- return buf;
-}
-
-static int
-set_speaker_light_locked(struct light_device_t* dev,
- struct light_state_t const* state)
-{
- int red;
- int blink;
- int onMS, offMS, stepDuration, pauseHi;
- unsigned int colorRGB;
- char *duty;
-
- if(!dev) {
- return -1;
- }
-
- switch (state->flashMode) {
- case LIGHT_FLASH_TIMED:
- onMS = state->flashOnMS;
- offMS = state->flashOffMS;
- break;
- case LIGHT_FLASH_NONE:
- default:
- onMS = 0;
- offMS = 0;
- break;
- }
-
- colorRGB = state->color;
-
- ALOGV("set_speaker_light_locked mode %d, colorRGB=%08X, onMS=%d, offMS=%d\n",
- state->flashMode, colorRGB, onMS, offMS);
-
- red = (colorRGB >> 16) & 0xFF;
-
- blink = onMS > 0 && offMS > 0;
-
- // disable all blinking to start
- write_int(RED_BLINK_FILE, 0);
-
- if (blink) {
- stepDuration = RAMP_STEP_DURATION;
- pauseHi = onMS - (stepDuration * RAMP_SIZE * 2);
- if (stepDuration * RAMP_SIZE * 2 > onMS) {
- stepDuration = onMS / (RAMP_SIZE * 2);
- pauseHi = 0;
- }
-
- // red
- write_int(RED_START_IDX_FILE, 0);
- duty = get_scaled_duty_pcts(red);
- write_str(RED_DUTY_PCTS_FILE, duty);
- write_int(RED_PAUSE_LO_FILE, offMS);
- // The led driver is configured to ramp up then ramp
- // down the lut. This effectively doubles the ramp duration.
- write_int(RED_PAUSE_HI_FILE, pauseHi);
- write_int(RED_RAMP_STEP_MS_FILE, stepDuration);
- free(duty);
-
- // start the party
- write_int(RED_BLINK_FILE, red);
-
- } else {
- write_int(RED_LED_FILE, red);
- }
-
-
- return 0;
-}
-
-static void
-handle_speaker_light_locked(struct light_device_t* dev)
-{
- if (is_lit(&g_attention)) {
- set_speaker_light_locked(dev, &g_attention);
- } else if (is_lit(&g_notification)) {
- set_speaker_light_locked(dev, &g_notification);
- } else {
- set_speaker_light_locked(dev, &g_battery);
- }
-}
-
-static int
-set_light_battery(struct light_device_t* dev,
- struct light_state_t const* state)
-{
- pthread_mutex_lock(&g_lock);
- g_battery = *state;
- handle_speaker_light_locked(dev);
- pthread_mutex_unlock(&g_lock);
- return 0;
-}
-
-static int
-set_light_notifications(struct light_device_t* dev,
- struct light_state_t const* state)
-{
- pthread_mutex_lock(&g_lock);
-
- unsigned int brightness;
- unsigned int color;
- unsigned int rgb[3];
-
- g_notification = *state;
-
- // If a brightness has been applied by the user
- brightness = (g_notification.color & 0xFF000000) >> 24;
- if (brightness > 0 && brightness < 0xFF) {
-
- // Retrieve each of the RGB colors
- color = g_notification.color & 0x00FFFFFF;
- rgb[0] = (color >> 16) & 0xFF;
- rgb[1] = (color >> 8) & 0xFF;
- rgb[2] = color & 0xFF;
-
- // Apply the brightness level
- if (rgb[0] > 0)
- rgb[0] = (rgb[0] * brightness) / 0xFF;
- if (rgb[1] > 0)
- rgb[1] = (rgb[1] * brightness) / 0xFF;
- if (rgb[2] > 0)
- rgb[2] = (rgb[2] * brightness) / 0xFF;
-
- // Update with the new color
- g_notification.color = (rgb[0] << 16) + (rgb[1] << 8) + rgb[2];
- }
-
- handle_speaker_light_locked(dev);
- pthread_mutex_unlock(&g_lock);
- return 0;
-}
-
-static int
-set_light_attention(struct light_device_t* dev,
- struct light_state_t const* state)
-{
- pthread_mutex_lock(&g_lock);
- g_attention = *state;
- handle_speaker_light_locked(dev);
- pthread_mutex_unlock(&g_lock);
- return 0;
-}
-
-/** Close the lights device */
-static int
-close_lights(struct light_device_t *dev)
-{
- if (dev) {
- free(dev);
- }
- return 0;
-}
-
-
-/******************************************************************************/
-
-/**
- * module methods
- */
-
-/** Open a new instance of a lights device using name */
-static int open_lights(const struct hw_module_t* module, char const* name,
- struct hw_device_t** device)
-{
- int (*set_light)(struct light_device_t* dev,
- struct light_state_t const* state);
-
- if (0 == strcmp(LIGHT_ID_BACKLIGHT, name))
- set_light = set_light_backlight;
- else if (0 == strcmp(LIGHT_ID_BATTERY, name))
- set_light = set_light_battery;
- else if (0 == strcmp(LIGHT_ID_NOTIFICATIONS, name))
- set_light = set_light_notifications;
- else if (0 == strcmp(LIGHT_ID_ATTENTION, name))
- set_light = set_light_attention;
- else
- return -EINVAL;
-
- pthread_once(&g_init, init_globals);
-
- struct light_device_t *dev = malloc(sizeof(struct light_device_t));
-
- if(!dev)
- return -ENOMEM;
-
- memset(dev, 0, sizeof(*dev));
-
- dev->common.tag = HARDWARE_DEVICE_TAG;
- dev->common.version = 0;
- dev->common.module = (struct hw_module_t*)module;
- dev->common.close = (int (*)(struct hw_device_t*))close_lights;
- dev->set_light = set_light;
-
- *device = (struct hw_device_t*)dev;
- return 0;
-}
-
-static struct hw_module_methods_t lights_module_methods = {
- .open = open_lights,
-};
-
-/*
- * The lights Module
- */
-struct hw_module_t HAL_MODULE_INFO_SYM = {
- .tag = HARDWARE_MODULE_TAG,
- .version_major = 1,
- .version_minor = 0,
- .id = LIGHTS_HARDWARE_MODULE_ID,
- .name = "ZUK Z2 Lights Module",
- .author = "The CyanogenMod Project",
- .methods = &lights_module_methods,
-};
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