static ssize_t store_led_b(struct device *dev,
struct device_attribute *devattr,
const char *buf, size_t count)
{
struct max77828_rgb *max77828_rgb = dev_get_drvdata(dev);
unsigned int brightness;
char buff[10] = {0,};
int cnt, ret;
cnt = count;
cnt = (buf[cnt-1] == '\n') ? cnt-1 : cnt;
memcpy(buff, buf, cnt);
buff[cnt] = '\0';
ret = kstrtouint(buff, 0, &brightness);
if (ret != 0) {
dev_err(dev, "fail to get brightness.\n");
goto out;
}
if (brightness != 0) {
max77828_rgb_set(&max77828_rgb->led[BLUE], brightness);
max77828_rgb_blink(dev, 0, 0);
} else {
max77828_rgb_set(&max77828_rgb->led[BLUE], LED_OFF);
}
out:
return count;
}
static void max77828_rgb_reset(struct device *dev)
{
struct max77828_rgb *max77828_rgb = dev_get_drvdata(dev);
max77828_rgb_set(&max77828_rgb->led[RED], LED_OFF);
max77828_rgb_set(&max77828_rgb->led[GREEN], LED_OFF);
max77828_rgb_set(&max77828_rgb->led[BLUE], LED_OFF);
max77828_rgb_ramp(dev, 0, 0);
}
static ssize_t store_max77828_rgb_blink(struct device *dev,
struct device_attribute *devattr,
const char *buf, size_t count)
{
struct max77828_rgb *max77828_rgb = dev_get_drvdata(dev);
int led_brightness = 0;
int delay_on_time = 0;
int delay_off_time = 0;
u8 led_r_brightness = 0;
u8 led_g_brightness = 0;
u8 led_b_brightness = 0;
int ret;
ret = sscanf(buf, "0x%8x %5d %5d", &led_brightness,
&delay_on_time, &delay_off_time);
if (ret == 0) {
dev_err(dev, "fail to get led_blink value.\n");
return count;
}
/*Reset led*/
max77828_rgb_reset(dev);
led_r_brightness = (led_brightness & LED_R_MASK) >> 16;
led_g_brightness = (led_brightness & LED_G_MASK) >> 8;
led_b_brightness = led_brightness & LED_B_MASK;
/* In user case, LED current is restricted to less than 2mA */
led_r_brightness = (led_r_brightness * led_dynamic_current) / LED_MAX_CURRENT;
led_g_brightness = (led_g_brightness * led_dynamic_current) / LED_MAX_CURRENT;
led_b_brightness = (led_b_brightness * led_dynamic_current) / LED_MAX_CURRENT;
if (led_r_brightness) {
max77828_rgb_set(&max77828_rgb->led[RED], led_r_brightness);
}
if (led_g_brightness) {
max77828_rgb_set(&max77828_rgb->led[GREEN], led_g_brightness);
}
if (led_b_brightness) {
max77828_rgb_set(&max77828_rgb->led[BLUE], led_b_brightness);
}
/*Set LED blink mode*/
max77828_rgb_blink(dev, delay_on_time, delay_off_time);
dev_dbg(dev, "led_blink is called, Color:0x%X Brightness:%i\n",
led_brightness, led_dynamic_current);
return count;
}
static ssize_t max77828_led_b(struct device *dev,
struct device_attribute *devattr,
const char *buf, size_t count)
{
struct led_classdev *led_cdev = dev_get_drvdata(dev);
struct max77828_led_data *led_data = container_of(led_cdev, struct max77828_led_data, led);
char buff[10] = {0,};
int cnt, ret;
int brightness;
cnt = count;
cnt = (buf[cnt-1] == '\n') ? cnt-1 : cnt;
memcpy(buff, buf, cnt);
buff[cnt] = '\0';
ret = kstrtoint(buff, 0, &brightness);
if (ret != 0){
printk("fail to get brightness.\n");
goto out;
}
led_data->test_brightness = brightness;
led_data->data->id = MAX77828_RGB_B;
max77828_rgb_set(led_data);
out:
return count;
}
static void led_set(struct max77828_led_data *led_data)
{
struct max77828_led *data = led_data->data;
int id = data->id;
switch(id)
{
case MAX77828_FLASH:
max77828_flash_set(led_data);
break;
case MAX77828_TORCH:
max77828_torch_set(led_data);
break;
case MAX77828_RGB_R :
case MAX77828_RGB_G :
case MAX77828_RGB_B :
max77828_rgb_set(led_data);
break;
default:
pr_err("(%s) : LED id is not valid\n",__func__);
break;
}
return;
}
static ssize_t store_max77828_rgb_pattern(struct device *dev,
struct device_attribute *devattr,
const char *buf, size_t count)
{
struct max77828_rgb *max77828_rgb = dev_get_drvdata(dev);
unsigned int mode = 0;
int ret;
ret = sscanf(buf, "%1d", &mode);
if (ret == 0) {
dev_err(dev, "fail to get led_pattern mode.\n");
return count;
}
if (mode > POWERING)
return count;
/* Set all LEDs Off */
max77828_rgb_reset(dev);
if (mode == PATTERN_OFF)
return count;
/* Set to low power consumption mode */
if (led_lowpower_mode == 1)
led_dynamic_current = 0x5;
else
led_dynamic_current = 0x14;
switch (mode) {
case CHARGING:
max77828_rgb_set(&max77828_rgb->led[RED], led_dynamic_current);
max77828_rgb_blink(dev, 0, 0);
break;
case CHARGING_ERR:
max77828_rgb_set(&max77828_rgb->led[RED], led_dynamic_current);
max77828_rgb_blink(dev, 600, 400);
break;
case MISSED_NOTI:
max77828_rgb_set(&max77828_rgb->led[BLUE], led_dynamic_current);
max77828_rgb_blink(dev, 600, 4900);
break;
case LOW_BATTERY:
max77828_rgb_set(&max77828_rgb->led[RED], led_dynamic_current);
max77828_rgb_blink(dev, 600, 4900);
break;
case FULLY_CHARGED:
max77828_rgb_set(&max77828_rgb->led[GREEN], led_dynamic_current);
max77828_rgb_blink(dev, 0, 0);
break;
case POWERING:
max77828_rgb_set(&max77828_rgb->led[GREEN], led_dynamic_current);
max77828_rgb_set(&max77828_rgb->led[BLUE], led_dynamic_current);
max77828_rgb_ramp(dev, 1500, 700);
max77828_rgb_blink(dev, 200, 2500);
break;
default:
break;
}
return count;
}