展锐平台关机充电代码

./sprd/proprietories-source/charge

led的控制部分：

//./sprd/proprietories-source/charge/ui.c

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static void led_control(int level) {       static int led_flag = 0;          LOGE("***led_control***level=%d*led_flag=%d***\n",level,led_flag);       if (level > 100)         level = 100;       else if (level < 0)         level = 0;       if (level < 90) {         if (led_flag != LED_RED) {             led_on(LED_RED);             led_flag = LED_RED;         }       } else {          if (led_flag != LED_GREEN) {              led_on(LED_GREEN);              led_flag = LED_GREEN;         }      } }

//./sprd/proprietories-source/charge/backlight.c

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#define LED_GREEN_DEV                   "/sys/class/leds/green/brightness" #define LED_GREEN_MAX_DEV                   "/sys/class/leds/green/max_brightness" #define LED_RED_DEV                     "/sys/class/leds/red/brightness" #define LED_RED_MAX_DEV                     "/sys/class/leds/red/max_brightness" #define LED_BLUE_DEV                    "/sys/class/leds/blue/brightness" #define LED_BLUE_MAX_DEV                    "/sys/class/leds/blue/max_brightness"   #define LED_GREEN_DEV_K414                   "/sys/class/leds/sc27xx:green/brightness" #define LED_GREEN_MAX_DEV_K414                   "/sys/class/leds/sc27xx:green/max_brightness" #define LED_RED_DEV_K414                     "/sys/class/leds/sc27xx:red/brightness" #define LED_RED_MAX_DEV_K414                     "/sys/class/leds/sc27xx:red/max_brightness" #define LED_BLUE_DEV_K414                    "/sys/class/leds/sc27xx:blue/brightness" #define LED_BLUE_MAX_DEV_K414                    "/sys/class/leds/sc27xx:blue/max_brightness"   static int eng_led_red_test(int brightness) {         int fd;         int ret;         char buffer[8];           fd = open(LED_RED_DEV, O_RDWR);           if (fd < 0) {                 SPRD_DBG("%s: open %s fail", __func__, LED_RED_DEV);                 fd = open(LED_RED_DEV_K414,O_RDWR);                 if (fd < 0) {                         SPRD_DBG("%s: open %s fail", __func__, LED_RED_DEV_K414);                         return -1;                 }         }           memset(buffer, 0, sizeof(buffer));         sprintf(buffer, "%d", brightness);         ret = write(fd, buffer, strlen(buffer));           close(fd);           return 0; }   static int eng_led_blue_test(int brightness) {         int fd;         int ret;         char buffer[8];           fd = open(LED_BLUE_DEV, O_RDWR);           if (fd < 0) {                 SPRD_DBG("%s: open %s fail", __func__, LED_BLUE_DEV);                 fd = open(LED_BLUE_DEV_K414,O_RDWR);                 if (fd < 0) {                         SPRD_DBG("%s: open %s fail", __func__, LED_BLUE_DEV_K414);                         return -1;                 }         }           memset(buffer, 0, sizeof(buffer));         sprintf(buffer, "%d", brightness);         ret = write(fd, buffer, strlen(buffer));           close(fd);           return 0; }   void led_off(void) {     SPRD_DBG("%s: *********led_off****", __func__);         eng_led_green_test(0);         eng_led_red_test(0);         eng_led_blue_test(0); }   void led_on(int color) {      SPRD_DBG("%s: *********led_on****", __func__);         if (color == 1) {                 eng_led_green_test(max_green_led/2);                 eng_led_red_test(0);                 eng_led_blue_test(0);         } else if (color == 2) {                 eng_led_red_test(max_red_led/2);                 eng_led_green_test(0);                 eng_led_blue_test(0);         } else if (color == 3) {                 eng_led_blue_test(0);                 eng_led_red_test(max_green_led/2);                 eng_led_green_test(max_red_led/2);         } else {                 SPRD_DBG("%s: color is %d invalid\n", __func__, color);         } }