diff options
Diffstat (limited to 'liblights/lights.c')
| -rwxr-xr-x | liblights/lights.c | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/liblights/lights.c b/liblights/lights.c deleted file mode 100755 index 940b51c..0000000 --- a/liblights/lights.c +++ /dev/null @@ -1,217 +0,0 @@ -/* - * Copyright (C) 2011 The Android Open Source Project - * Copyright (C) 2011 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" -#define LOG_NDEBUG 0 - -#include <cutils/log.h> - -#include <stdint.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; - -char const*const PANEL_FILE - = "/sys/class/backlight/panel/brightness"; - -char const*const BUTTON_POWER - = "/sys/class/sec/sec_touchkey/enable_disable"; - -char const*const BUTTON_FILE - = "/sys/class/sec/sec_touchkey/brightness"; - -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 = sprintf(buffer, "%d\n", value); - int amt = write(fd, buffer, bytes); - close(fd); - return amt == -1 ? -errno : 0; - } else { - if (already_warned == 0) { - LOGE("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); - - pthread_mutex_lock(&g_lock); - err = write_int(PANEL_FILE, brightness); - err = write_int(BUTTON_FILE, brightness > 0 ? 1 : 0); - pthread_mutex_unlock(&g_lock); - - return err; -} - -static int -set_light_keyboard(struct light_device_t* dev, - struct light_state_t const* state) -{ - return 0; -} - -static int -set_light_buttons(struct light_device_t* dev, - struct light_state_t const* state) -{ - int err = 0; - int on = is_lit(state); - - pthread_mutex_lock(&g_lock); - LOGD("set_light_button on=%d\n", on ? 1 : 0); - err = write_int(BUTTON_FILE, on ? 1:0); - pthread_mutex_unlock(&g_lock); - - return err; -} - -static int -set_light_battery(struct light_device_t* dev, - struct light_state_t const* state) -{ - return 0; -} - -static int -set_light_notification(struct light_device_t* dev, - struct light_state_t const* state) -{ - return 0; -} - -static int -set_light_attention(struct light_device_t* dev, - struct light_state_t const* state) -{ - return 0; -} - -static int -close_lights(struct light_device_t *dev) -{ - if (dev) { - free(dev); - } - return 0; -} - - -/******************************************************************************/ -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_KEYBOARD, name)) { - set_light = set_light_keyboard; - } - else if (0 == strcmp(LIGHT_ID_BUTTONS, name)) { - set_light = set_light_buttons; - } - 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_notification; - } - 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)); - 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, -}; - -const struct hw_module_t HAL_MODULE_INFO_SYM = { - .tag = HARDWARE_MODULE_TAG, - .version_major = 1, - .version_minor = 0, - .id = LIGHTS_HARDWARE_MODULE_ID, - .name = "Samsung Exynos4210 Lights Module", - .author = "The CyanogenMod Project", - .methods = &lights_module_methods, -}; |