542 lines
14 KiB
C
542 lines
14 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2018 MediaTek Inc.
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*
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/device.h>
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#include "mt_led_trigger.h"
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const char *mt_led_trigger_mode_name[MT_LED_MODE_MAX] = {
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"default_mode",
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"register_mode",
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"pwm_mode",
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"breath_mode",
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};
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static ssize_t mt_led_register_attr_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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static ssize_t mt_led_register_attr_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t cnt);
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static const struct device_attribute mt_led_register_mode_attrs[] = {
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__ATTR(soft_start_step, 0644,
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mt_led_register_attr_show, mt_led_register_attr_store),
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};
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static ssize_t mt_led_register_attr_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct led_classdev *led_cdev = dev_get_drvdata(dev);
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struct mt_led_info *info = (struct mt_led_info *)led_cdev;
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int ret = 0;
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ptrdiff_t cmd;
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unsigned int value;
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cmd = attr - mt_led_register_mode_attrs;
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buf[0] = '\0';
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dev_info(led_cdev->dev, "%s cmd = %d\n", __func__, (int)cmd);
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switch (cmd) {
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case REGISTER_MODE_ATTR_SFSTR:
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ret = info->ops->get_current_step(info, &value);
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if (ret < 0)
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return ret;
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break;
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default:
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return -EINVAL;
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}
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snprintf(buf, PAGE_SIZE, "%d\n", value);
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return strlen(buf);
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}
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static ssize_t mt_led_register_attr_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t cnt)
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{
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struct led_classdev *led_cdev = dev_get_drvdata(dev);
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struct mt_led_info *info = (struct mt_led_info *)led_cdev;
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int ret = 0;
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unsigned long value = 0;
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ptrdiff_t cmd;
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cmd = attr - mt_led_register_mode_attrs;
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ret = kstrtoul(buf, 10, &value);
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if (ret < 0)
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return ret;
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dev_info(led_cdev->dev, "%s cmd = %d\n", __func__, (int)cmd);
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switch (cmd) {
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case REGISTER_MODE_ATTR_SFSTR:
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ret = info->ops->set_current_step(info, value);
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if (ret < 0)
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return ret;
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break;
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default:
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break;
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}
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return cnt;
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}
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static int mt_led_register_activate(struct led_classdev *led)
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{
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struct mt_led_info *info = (struct mt_led_info *)led;
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int i = 0, ret = 0;
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if ((info->magic_code & MT_LED_MAGIC_MASK) == MT_LED_MAGIC_CODE &&
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(info->magic_code & MT_LED_MAGIC_REGISTER_MODE) != 0) {
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//check ops
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if (info->ops == NULL) {
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dev_notice(led->dev, "%s: operation is NULL\n", __func__);
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return 0;
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}
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for (i = 0; i < ARRAY_SIZE(mt_led_register_mode_attrs); i++) {
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ret = device_create_file(led->dev,
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mt_led_register_mode_attrs + i);
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if (ret < 0) {
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dev_notice(led->dev,
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"%s: create file fail %d\n",
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__func__, i);
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goto out_create_file;
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}
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}
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ret = info->ops->change_mode(led, MT_LED_REGISTER_MODE);
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if (ret < 0) {
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dev_notice(led->dev, "%s: change mode fail\n", __func__);
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goto out_change_mode;
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}
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return ret;
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out_change_mode:
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i = ARRAY_SIZE(mt_led_register_mode_attrs);
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out_create_file:
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while (--i > 0)
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device_remove_file(led->dev, mt_led_register_mode_attrs + i);
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} else
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dev_notice(led->dev, "not Support MT REGISTER Trigger\n");
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return ret;
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}
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static void mt_led_register_deactivate(struct led_classdev *led)
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{
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struct mt_led_info *info = (struct mt_led_info *)led;
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int i = 0, ret = 0;
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for (i = 0; i < ARRAY_SIZE(mt_led_register_mode_attrs); i++)
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device_remove_file(led->dev, mt_led_register_mode_attrs + i);
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ret = info->ops->change_mode(led, MT_LED_DEFAULT_MODE);
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if (ret < 0)
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dev_notice(led->dev, "%s change mode fail\n", __func__);
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}
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static ssize_t mt_led_pwm_attr_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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static ssize_t mt_led_pwm_attr_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t cnt);
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static const struct device_attribute mt_led_pwm_mode_attrs[] = {
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__ATTR(pwm_dim_duty, 0644, mt_led_pwm_attr_show, mt_led_pwm_attr_store),
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__ATTR(pwm_dim_freq, 0644, mt_led_pwm_attr_show, mt_led_pwm_attr_store),
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__ATTR(list_duty, 0444, mt_led_pwm_attr_show, NULL),
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__ATTR(list_freq, 0444, mt_led_pwm_attr_show, NULL),
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};
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static ssize_t mt_led_pwm_attr_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct led_classdev *led_cdev = dev_get_drvdata(dev);
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struct mt_led_info *info = (struct mt_led_info *)led_cdev;
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int ret = 0;
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ptrdiff_t cmd = attr - mt_led_pwm_mode_attrs;
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//no float in kernel
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int precision = 10000;
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int value_HZ;
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unsigned int dim_duty;
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unsigned int dim_freq;
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buf[0] = '\0';
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dev_info(led_cdev->dev, "%s cmd = %d\n", __func__, (int)cmd);
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switch (cmd) {
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case PWM_MODE_ATTR_DIM_DUTY:
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ret = info->ops->get_pwm_dim_duty(info, &dim_duty);
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if (ret < 0)
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return ret;
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snprintf(buf, PAGE_SIZE, "%d (0~255)\n", dim_duty);
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break;
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case PWM_MODE_ATTR_DIM_FREQ:
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ret = info->ops->get_pwm_dim_freq(info, &dim_freq);
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if (ret < 0)
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return ret;
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value_HZ = (1000*precision)/((dim_freq+1)*2);
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snprintf(buf, PAGE_SIZE, "%d.%d Hz\n", value_HZ/precision, value_HZ%precision);
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break;
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case PWM_MODE_ATTR_LIST_DUTY:
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ret = info->ops->list_pwm_duty(info, buf);
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break;
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case PWM_MODE_ATTR_LIST_FREQ:
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ret = info->ops->list_pwm_freq(info, buf);
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break;
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default:
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return -EINVAL;
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}
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if (ret < 0)
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return ret;
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return strlen(buf);
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}
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static ssize_t mt_led_pwm_attr_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t cnt)
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{
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struct led_classdev *led_cdev = dev_get_drvdata(dev);
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struct mt_led_info *info = (struct mt_led_info *)led_cdev;
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int ret = 0;
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unsigned long value = 0;
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ptrdiff_t cmd = attr - mt_led_pwm_mode_attrs;
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ret = kstrtoul(buf, 10, &value);
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if (ret < 0)
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return ret;
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dev_info(led_cdev->dev, "%s cmd = %d\n", __func__, (int)cmd);
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switch (cmd) {
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case PWM_MODE_ATTR_DIM_DUTY:
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ret = info->ops->set_pwm_dim_duty(info, value);
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break;
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case PWM_MODE_ATTR_DIM_FREQ:
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ret = info->ops->set_pwm_dim_freq(info, value);
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break;
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default:
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return -EINVAL;
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}
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if (ret < 0)
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return ret;
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return cnt;
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}
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static int mt_led_pwm_activate(struct led_classdev *led)
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{
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struct mt_led_info *info = (struct mt_led_info *)led;
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int i = 0, ret = 0;
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if ((info->magic_code & MT_LED_MAGIC_MASK) == MT_LED_MAGIC_CODE &&
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(info->magic_code & MT_LED_MAGIC_PWM_MODE) != 0) {
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//check ops
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if (info->ops == NULL) {
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dev_notice(led->dev, "%s: operation is NULL\n", __func__);
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return 0;
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}
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for (i = 0; i < ARRAY_SIZE(mt_led_pwm_mode_attrs); i++) {
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ret = device_create_file(led->dev,
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mt_led_pwm_mode_attrs + i);
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if (ret < 0) {
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dev_notice(led->dev,
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"%s: create file fail %d\n",
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__func__, i);
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goto out_create_file;
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}
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}
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ret = info->ops->change_mode(led, MT_LED_PWM_MODE);
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if (ret < 0) {
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dev_notice(led->dev, "%s change pwm_mode fail\n", __func__);
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goto out_change_mode;
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}
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return ret;
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out_change_mode:
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i = ARRAY_SIZE(mt_led_pwm_mode_attrs);
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out_create_file:
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while (--i > 0)
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device_remove_file(led->dev, mt_led_pwm_mode_attrs + i);
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} else
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dev_notice(led->dev, "Not Support MT PWM Trigger\n");
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return ret;
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}
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static void mt_led_pwm_deactivate(struct led_classdev *led)
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{
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struct mt_led_info *info = (struct mt_led_info *)led;
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int i = 0, ret = 0;
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for (i = 0; i < ARRAY_SIZE(mt_led_pwm_mode_attrs); i++)
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device_remove_file(led->dev, mt_led_pwm_mode_attrs + i);
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ret = info->ops->change_mode(led, MT_LED_DEFAULT_MODE);
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if (ret < 0)
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dev_notice(led->dev, "%s change mode fail\n", __func__);
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}
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static ssize_t mt_led_breath_attr_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t cnt);
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static ssize_t mt_led_breath_attr_show(struct device *dev,
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struct device_attribute *attr, char *buf);
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static const struct device_attribute mt_led_breath_mode_attrs[] = {
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__ATTR(tr1, 0644, mt_led_breath_attr_show, mt_led_breath_attr_store),
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__ATTR(tr2, 0644, mt_led_breath_attr_show, mt_led_breath_attr_store),
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__ATTR(tf1, 0644, mt_led_breath_attr_show, mt_led_breath_attr_store),
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__ATTR(tf2, 0644, mt_led_breath_attr_show, mt_led_breath_attr_store),
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__ATTR(ton, 0644, mt_led_breath_attr_show, mt_led_breath_attr_store),
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__ATTR(toff, 0644, mt_led_breath_attr_show, mt_led_breath_attr_store),
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__ATTR(list_time, 0444, mt_led_breath_attr_show, NULL),
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};
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static ssize_t mt_led_breath_attr_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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int ret = 0;
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ptrdiff_t cmd = attr - mt_led_breath_mode_attrs;
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struct led_classdev *led_cdev = dev_get_drvdata(dev);
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struct mt_led_info *info = (struct mt_led_info *)led_cdev;
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unsigned int value;
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buf[0] = '\0';
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dev_info(led_cdev->dev, "%s cmd = %d\n", __func__, (int)cmd);
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switch (cmd) {
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case BREATH_MODE_ATTR_TR1:
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ret = info->ops->get_breath_tr1(info, &value);
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break;
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case BREATH_MODE_ATTR_TR2:
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ret = info->ops->get_breath_tr2(info, &value);
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break;
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case BREATH_MODE_ATTR_TF1:
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ret = info->ops->get_breath_tf1(info, &value);
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break;
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case BREATH_MODE_ATTR_TF2:
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ret = info->ops->get_breath_tf2(info, &value);
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break;
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case BREATH_MODE_ATTR_TON:
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ret = info->ops->get_breath_ton(info, &value);
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break;
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case BREATH_MODE_ATTR_TOFF:
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ret = info->ops->get_breath_toff(info, &value);
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break;
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default:
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return -EINVAL;
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}
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if (ret < 0)
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return ret;
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snprintf(buf, PAGE_SIZE, "%d\n", value);
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return strlen(buf);
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}
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static ssize_t mt_led_breath_attr_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t cnt)
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{
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struct led_classdev *led_cdev = dev_get_drvdata(dev);
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struct mt_led_info *info = (struct mt_led_info *)led_cdev;
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int ret = 0;
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unsigned long value = 0;
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ptrdiff_t cmd = attr - mt_led_breath_mode_attrs;
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ret = kstrtoul(buf, 10, &value);
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if (ret < 0)
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return ret;
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dev_info(led_cdev->dev, "%s cmd = %d\n", __func__, (int)cmd);
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switch (cmd) {
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case BREATH_MODE_ATTR_TR1:
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ret = info->ops->set_breath_tr1(info, value);
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break;
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case BREATH_MODE_ATTR_TR2:
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ret = info->ops->set_breath_tr2(info, value);
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break;
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case BREATH_MODE_ATTR_TF1:
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ret = info->ops->set_breath_tf1(info, value);
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break;
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case BREATH_MODE_ATTR_TF2:
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ret = info->ops->set_breath_tf2(info, value);
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break;
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case BREATH_MODE_ATTR_TON:
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ret = info->ops->set_breath_ton(info, value);
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break;
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case BREATH_MODE_ATTR_TOFF:
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ret = info->ops->set_breath_toff(info, value);
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break;
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default:
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return -EINVAL;
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}
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if (ret < 0)
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return ret;
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return cnt;
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}
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static int mt_led_breath_activate(struct led_classdev *led)
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{
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struct mt_led_info *info = (struct mt_led_info *)led;
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int i = 0, ret = 0;
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if ((info->magic_code & MT_LED_MAGIC_MASK) == MT_LED_MAGIC_CODE &&
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(info->magic_code & MT_LED_MAGIC_BREATH_MODE) != 0) {
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//check ops
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if (info->ops == NULL) {
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dev_notice(led->dev, "%s: operation is NULL\n", __func__);
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return 0;
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}
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for (i = 0; i < ARRAY_SIZE(mt_led_breath_mode_attrs); i++) {
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ret = device_create_file(led->dev,
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mt_led_breath_mode_attrs + i);
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if (ret < 0) {
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dev_notice(led->dev,
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"%s: create file fail %d\n",
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__func__, i);
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goto out_create_file;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
ret = info->ops->change_mode(led, MT_LED_BREATH_MODE);
|
||
|
if (ret < 0) {
|
||
|
dev_notice(led->dev, "%s change breath_mode fail: %d\n", __func__, ret);
|
||
|
goto out_change_mode;
|
||
|
}
|
||
|
|
||
|
return ret;
|
||
|
out_change_mode:
|
||
|
i = ARRAY_SIZE(mt_led_breath_mode_attrs);
|
||
|
out_create_file:
|
||
|
while (--i >= 0)
|
||
|
device_remove_file(
|
||
|
led->dev, mt_led_breath_mode_attrs + i);
|
||
|
} else
|
||
|
dev_notice(led->dev, "Not Support MT Breath Trigger\n");
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
static void mt_led_breath_deactivate(struct led_classdev *led)
|
||
|
{
|
||
|
struct mt_led_info *info = (struct mt_led_info *)led;
|
||
|
int i = 0, ret = 0;
|
||
|
|
||
|
for (i = 0; i < ARRAY_SIZE(mt_led_breath_mode_attrs); i++)
|
||
|
device_remove_file(led->dev, mt_led_breath_mode_attrs + i);
|
||
|
|
||
|
ret = info->ops->change_mode(led, MT_LED_DEFAULT_MODE);
|
||
|
if (ret < 0)
|
||
|
dev_notice(led->dev, "%s change mode fail\n", __func__);
|
||
|
}
|
||
|
|
||
|
|
||
|
static struct led_trigger mt_led_trigger[] = {
|
||
|
{
|
||
|
.name = "register_mode",
|
||
|
.activate = mt_led_register_activate,
|
||
|
.deactivate = mt_led_register_deactivate,
|
||
|
},
|
||
|
{
|
||
|
.name = "pwm_mode",
|
||
|
.activate = mt_led_pwm_activate,
|
||
|
.deactivate = mt_led_pwm_deactivate,
|
||
|
},
|
||
|
{
|
||
|
.name = "breath_mode",
|
||
|
.activate = mt_led_breath_activate,
|
||
|
.deactivate = mt_led_breath_deactivate,
|
||
|
},
|
||
|
};
|
||
|
|
||
|
int mt_led_check_ops(struct mt_led_ops *ops)
|
||
|
{
|
||
|
if (!ops->get_current_step)
|
||
|
return -EINVAL;
|
||
|
if (!ops->set_current_step)
|
||
|
return -EINVAL;
|
||
|
if (!ops->get_pwm_dim_duty)
|
||
|
return -EINVAL;
|
||
|
if (!ops->set_pwm_dim_duty)
|
||
|
return -EINVAL;
|
||
|
if (!ops->get_pwm_dim_freq)
|
||
|
return -EINVAL;
|
||
|
if (!ops->set_pwm_dim_freq)
|
||
|
return -EINVAL;
|
||
|
if (!ops->get_breath_tr1)
|
||
|
return -EINVAL;
|
||
|
if (!ops->set_breath_tr1)
|
||
|
return -EINVAL;
|
||
|
if (!ops->get_breath_tr2)
|
||
|
return -EINVAL;
|
||
|
if (!ops->set_breath_tr2)
|
||
|
return -EINVAL;
|
||
|
if (!ops->get_breath_tf1)
|
||
|
return -EINVAL;
|
||
|
if (!ops->set_breath_tf1)
|
||
|
return -EINVAL;
|
||
|
if (!ops->get_breath_tf2)
|
||
|
return -EINVAL;
|
||
|
if (!ops->set_breath_tf2)
|
||
|
return -EINVAL;
|
||
|
if (!ops->get_breath_ton)
|
||
|
return -EINVAL;
|
||
|
if (!ops->set_breath_ton)
|
||
|
return -EINVAL;
|
||
|
if (!ops->get_breath_toff)
|
||
|
return -EINVAL;
|
||
|
if (!ops->set_breath_toff)
|
||
|
return -EINVAL;
|
||
|
if (!ops->list_pwm_duty)
|
||
|
return -EINVAL;
|
||
|
if (!ops->list_pwm_freq)
|
||
|
return -EINVAL;
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int mt_led_trigger_register(struct mt_led_ops *ops)
|
||
|
{
|
||
|
int i = 0, ret = 0;
|
||
|
|
||
|
ret = mt_led_check_ops(ops);
|
||
|
if (ret < 0) {
|
||
|
pr_notice("%s all ops need to be implment\n", __func__);
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
for (i = 0; i < ARRAY_SIZE(mt_led_trigger); i++) {
|
||
|
ret = led_trigger_register(&mt_led_trigger[i]);
|
||
|
if (ret < 0) {
|
||
|
pr_notice("%s register led %d fail\n", __func__, i);
|
||
|
goto out_led_trigger;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
|
||
|
out_led_trigger:
|
||
|
while (--i > 0)
|
||
|
led_trigger_unregister(&mt_led_trigger[i]);
|
||
|
|
||
|
return -EINVAL;
|
||
|
}
|
||
|
|
||
|
void mt_led_trigger_unregister(void)
|
||
|
{
|
||
|
int i = 0;
|
||
|
|
||
|
for (i = 0; i < ARRAY_SIZE(mt_led_trigger); i++)
|
||
|
led_trigger_unregister(&mt_led_trigger[i]);
|
||
|
}
|
||
|
|
||
|
MODULE_AUTHOR("Mediatek Corporation>");
|
||
|
MODULE_DESCRIPTION("MT6357 PMIC LED Trigger");
|
||
|
MODULE_LICENSE("GPL");
|
||
|
MODULE_VERSION("1.0.0");
|