1086 lines
28 KiB
C
Executable file
1086 lines
28 KiB
C
Executable file
/*
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* Copyright (C) 2022 Awinic Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/wait.h>
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#include <linux/slab.h>
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#include <linux/fs.h>
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#include <linux/sched.h>
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#include <linux/poll.h>
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#include <linux/device.h>
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#include <linux/interrupt.h>
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/cdev.h>
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#include <linux/err.h>
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#include <linux/errno.h>
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#include <linux/time.h>
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#include <linux/io.h>
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#include <linux/uaccess.h>
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#include <linux/hrtimer.h>
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#include <linux/ktime.h>
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#include <linux/version.h>
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#include <linux/mutex.h>
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#include <linux/i2c.h>
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#include <linux/leds.h>
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#include <linux/of.h>
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#include <linux/workqueue.h>
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#include <linux/list.h>
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#include "flashlight.h"
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#include "flashlight-dt.h"
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#include "flashlight-core.h"
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/* device tree should be defined in flashlight-dt.h */
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#ifndef AW36515_DTNAME
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#define AW36515_DTNAME "mediatek,flashlights_aw36515"
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#endif
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#ifndef AW36515_DTNAME_I2C
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#define AW36515_DTNAME_I2C "mediatek,flashlights_aw36515"
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#endif
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#define AW36515_NAME "flashlights_aw36515"
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#define AW36515_DRIVER_VERSION "V1.1.0"
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/* define registers */
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#define AW36515_REG_ENABLE (0x01)
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#define AW36515_MASK_ENABLE_LED1 (0x01)
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#define AW36515_MASK_ENABLE_LED2 (0x02)
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#define AW36515_DISABLE (0x00)
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#define AW36515_ENABLE_LED1 (0x01)
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#define AW36515_ENABLE_LED1_TORCH (0x09)
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#define AW36515_ENABLE_LED1_FLASH (0x0D)
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#define AW36515_ENABLE_LED2 (0x02)
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#define AW36515_ENABLE_LED2_TORCH (0x0A)
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#define AW36515_ENABLE_LED2_FLASH (0x0E)
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#define AW36515_REG_TORCH_LEVEL_LED1 (0x05)
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#define AW36515_REG_FLASH_LEVEL_LED1 (0x03)
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#define AW36515_REG_TORCH_LEVEL_LED2 (0x06)
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#define AW36515_REG_FLASH_LEVEL_LED2 (0x04)
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#define AW36515_REG_TIMING_CONF (0x08)
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#define AW36515_TORCH_RAMP_TIME (0x10)
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#define AW36515_FLASH_TIMEOUT (0x0F)
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/* define channel, level */
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#define AW36515_CHANNEL_NUM 2
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#define AW36515_CHANNEL_CH1 0
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#define AW36515_CHANNEL_CH2 1
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#define AW36515_LEVEL_NUM 26
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#define AW36515_LEVEL_TORCH 6 //always in torch mode // prize modify by zhuzhengjiang
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#define CONFIG_PRIZE_SOFT_LED_ENABLE 1
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#define AW36515_DEBUG(format, args...) printk(KERN_WARNING format, ##args)
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/* define mutex and work queue */
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static DEFINE_MUTEX(aw36515_mutex);
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static struct work_struct aw36515_work_ch1;
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static struct work_struct aw36515_work_ch2;
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struct i2c_client *aw36515_flashlight_client;
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/* define usage count */
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static int use_count;
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/* define i2c */
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static struct i2c_client *aw36515_i2c_client;
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/* platform data
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* torch_pin_enable: TX1/TORCH pin isa hardware TORCH enable
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* pam_sync_pin_enable: TX2 Mode The ENVM/TX2 is a PAM Sync. on input
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* thermal_comp_mode_enable: LEDI/NTC pin in Thermal Comparator Mode
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* strobe_pin_disable: STROBE Input disabled
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* vout_mode_enable: Voltage Out Mode enable
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*/
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struct aw36515_platform_data {
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u8 torch_pin_enable;
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u8 pam_sync_pin_enable;
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u8 thermal_comp_mode_enable;
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u8 strobe_pin_disable;
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u8 vout_mode_enable;
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int channel_num;
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struct flashlight_device_id *dev_id;
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};
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/* aw36515 chip data */
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struct aw36515_chip_data {
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struct i2c_client *client;
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struct aw36515_platform_data *pdata;
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struct mutex lock;
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u8 last_flag;
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u8 no_pdata;
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};
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static struct platform_device *g_aw36515_pdev;
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static int led_num = -1;
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/******************************************************************************
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* aw36515 operations
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*****************************************************************************/
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static const unsigned char aw36515_torch_level[AW36515_LEVEL_NUM] = {
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0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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// flash:duty * 7.83 + 3.91 MAX:2A
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static const unsigned char aw36515_flash_level[AW36515_LEVEL_NUM] = {
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0x04, 0x08, 0x0c, 0x10, 0x04, 0x18, 0x1c, 0x26, 0x31, 0x3c,
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0x47, 0x52, 0x5d, 0x68, 0x73, 0x7e, 0x89, 0x94, 0x9f, 0xaa,
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0xb5, 0xC0, 0xcb, 0xd6, 0xe1, 0xec};
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static volatile unsigned char aw36515_reg_enable;
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static volatile int aw36515_level_ch1 = -1;
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static volatile int aw36515_level_ch2 = -1;
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static int aw36515_is_torch(int level)
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{
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if (level >= AW36515_LEVEL_TORCH)
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return -1;
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return 0;
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}
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static int aw36515_verify_level(int level)
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{
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if (level < 0)
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level = 0;
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else if (level >= AW36515_LEVEL_NUM)
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level = AW36515_LEVEL_NUM - 1;
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return level;
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}
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/* i2c wrapper function */
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static int aw36515_write_reg(struct i2c_client *client, u8 reg, u8 val)
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{
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int ret;
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struct aw36515_chip_data *chip = i2c_get_clientdata(client);
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mutex_lock(&chip->lock);
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ret = i2c_smbus_write_byte_data(client, reg, val);
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mutex_unlock(&chip->lock);
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if (ret < 0)
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pr_err("failed writing at 0x%02x\n", reg);
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return ret;
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}
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static int aw36515_read_reg(struct i2c_client *client, u8 reg)
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{
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int val;
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struct aw36515_chip_data *chip = i2c_get_clientdata(client);
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mutex_lock(&chip->lock);
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val = i2c_smbus_read_byte_data(client, reg);
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mutex_unlock(&chip->lock);
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if (val < 0)
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pr_err("failed read at 0x%02x\n", reg);
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return val;
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}
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/* flashlight enable function */
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static int aw36515_enable_ch1(void)
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{
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unsigned char reg, val;
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reg = AW36515_REG_ENABLE;
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if (!aw36515_is_torch(aw36515_level_ch1)) {
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/* torch mode */
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aw36515_reg_enable |= AW36515_ENABLE_LED1_TORCH;
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} else {
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/* flash mode */
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aw36515_reg_enable |= AW36515_ENABLE_LED1_FLASH;
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}
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val = aw36515_reg_enable;
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return aw36515_write_reg(aw36515_i2c_client, reg, val);
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}
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static int aw36515_enable_ch2(void)
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{
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unsigned char reg, val;
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reg = AW36515_REG_ENABLE;
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if (!aw36515_is_torch(aw36515_level_ch2)) {
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/* torch mode */
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aw36515_reg_enable |= AW36515_ENABLE_LED2_TORCH;
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} else {
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/* flash mode */
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aw36515_reg_enable |= AW36515_ENABLE_LED2_FLASH;
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}
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val = aw36515_reg_enable;
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return aw36515_write_reg(aw36515_i2c_client, reg, val);
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}
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/* flashlight disable function */
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static int aw36515_disable_ch1(void)
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{
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unsigned char reg, val;
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reg = AW36515_REG_ENABLE;
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if (aw36515_reg_enable & AW36515_MASK_ENABLE_LED2) {
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/* if LED 2 is enable, disable LED 1 */
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aw36515_reg_enable &= (~AW36515_ENABLE_LED1);
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} else {
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/* if LED 2 is enable, disable LED 1 and clear mode */
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aw36515_reg_enable &= (~AW36515_ENABLE_LED1_FLASH);
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}
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val = aw36515_reg_enable;
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return aw36515_write_reg(aw36515_i2c_client, reg, val);
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}
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static int aw36515_disable_ch2(void)
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{
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unsigned char reg, val;
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reg = AW36515_REG_ENABLE;
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if (aw36515_reg_enable & AW36515_MASK_ENABLE_LED1) {
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/* if LED 1 is enable, disable LED 2 */
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aw36515_reg_enable &= (~AW36515_ENABLE_LED2);
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} else {
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/* if LED 1 is enable, disable LED 2 and clear mode */
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aw36515_reg_enable &= (~AW36515_ENABLE_LED2_FLASH);
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}
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val = aw36515_reg_enable;
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return aw36515_write_reg(aw36515_i2c_client, reg, val);
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}
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static int aw36515_enable(int channel)
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{
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if (channel == AW36515_CHANNEL_CH1)
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aw36515_enable_ch1();
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else if (channel == AW36515_CHANNEL_CH2)
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aw36515_enable_ch2();
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else {
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pr_err("%s, Error channel\n", __func__);
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return -1;
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}
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return 0;
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}
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static int aw36515_disable(int channel)
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{
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if (channel == AW36515_CHANNEL_CH1)
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aw36515_disable_ch1();
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else if (channel == AW36515_CHANNEL_CH2)
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aw36515_disable_ch2();
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else {
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pr_err("Error channel\n");
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return -1;
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}
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return 0;
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}
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/* set flashlight level */
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static int aw36515_set_level_ch1(int level)
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{
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int ret;
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unsigned char reg, val;
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level = aw36515_verify_level(level);
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/* set torch brightness level */
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reg = AW36515_REG_TORCH_LEVEL_LED1;
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val = aw36515_torch_level[level];
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ret = aw36515_write_reg(aw36515_i2c_client, reg, val);
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aw36515_level_ch1 = level;
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/* set flash brightness level */
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reg = AW36515_REG_FLASH_LEVEL_LED1;
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val = aw36515_flash_level[level];
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ret = aw36515_write_reg(aw36515_i2c_client, reg, val);
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return ret;
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}
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int aw36515_set_level_ch2(int level)
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{
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int ret;
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unsigned char reg, val;
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level = aw36515_verify_level(level);
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/* set torch brightness level */
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reg = AW36515_REG_TORCH_LEVEL_LED2;
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val = aw36515_torch_level[level];
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ret = aw36515_write_reg(aw36515_i2c_client, reg, val);
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aw36515_level_ch2 = level;
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/* set flash brightness level */
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reg = AW36515_REG_FLASH_LEVEL_LED2;
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val = aw36515_flash_level[level];
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ret = aw36515_write_reg(aw36515_i2c_client, reg, val);
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return ret;
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}
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static int aw36515_set_level(int channel, int level)
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{
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if (channel == AW36515_CHANNEL_CH1)
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aw36515_set_level_ch1(level);
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else if (channel == AW36515_CHANNEL_CH2)
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aw36515_set_level_ch2(level);
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else {
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pr_err("%s, Error channel\n", __func__);
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return -1;
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}
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return 0;
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}
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/* flashlight init */
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int aw36515_init(void)
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{
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int ret;
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unsigned char reg, val;
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usleep_range(2000, 2500);
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/* clear enable register */
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reg = AW36515_REG_ENABLE;
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val = AW36515_DISABLE;
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ret = aw36515_write_reg(aw36515_i2c_client, reg, val);
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aw36515_reg_enable = val;
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/* set torch current ramp time and flash timeout */
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reg = AW36515_REG_TIMING_CONF;
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val = AW36515_TORCH_RAMP_TIME | AW36515_FLASH_TIMEOUT;
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ret = aw36515_write_reg(aw36515_i2c_client, reg, val);
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return ret;
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}
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/* flashlight uninit */
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int aw36515_uninit(void)
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{
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aw36515_disable(AW36515_CHANNEL_CH1);
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aw36515_disable(AW36515_CHANNEL_CH2);
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return 0;
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}
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/******************************************************************************
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* Timer and work queue
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*****************************************************************************/
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static struct hrtimer aw36515_timer_ch1;
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static struct hrtimer aw36515_timer_ch2;
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static unsigned int aw36515_timeout_ms[AW36515_CHANNEL_NUM];
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static void aw36515_work_disable_ch1(struct work_struct *data)
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{
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AW36515_DEBUG("ht work queue callback\n");
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aw36515_disable_ch1();
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}
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static void aw36515_work_disable_ch2(struct work_struct *data)
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{
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printk("lt work queue callback\n");
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aw36515_disable_ch2();
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}
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static enum hrtimer_restart aw36515_timer_func_ch1(struct hrtimer *timer)
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{
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schedule_work(&aw36515_work_ch1);
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return HRTIMER_NORESTART;
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}
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static enum hrtimer_restart aw36515_timer_func_ch2(struct hrtimer *timer)
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{
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schedule_work(&aw36515_work_ch2);
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return HRTIMER_NORESTART;
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}
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int aw36515_timer_start(int channel, ktime_t ktime)
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{
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if (channel == AW36515_CHANNEL_CH1)
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hrtimer_start(&aw36515_timer_ch1, ktime, HRTIMER_MODE_REL);
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else if (channel == AW36515_CHANNEL_CH2)
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hrtimer_start(&aw36515_timer_ch2, ktime, HRTIMER_MODE_REL);
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else {
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pr_err("%s, Error channel\n", __func__);
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return -1;
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}
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return 0;
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}
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int aw36515_timer_cancel(int channel)
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{
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if (channel == AW36515_CHANNEL_CH1)
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hrtimer_cancel(&aw36515_timer_ch1);
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else if (channel == AW36515_CHANNEL_CH2)
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hrtimer_cancel(&aw36515_timer_ch2);
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else {
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pr_err("Error channel\n");
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return -1;
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}
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return 0;
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}
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/******************************************************************************
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* Flashlight operations
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*****************************************************************************/
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static int aw36515_ioctl(unsigned int cmd, unsigned long arg)
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{
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struct flashlight_dev_arg *fl_arg;
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int channel;
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ktime_t ktime;
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fl_arg = (struct flashlight_dev_arg *)arg;
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channel = fl_arg->channel;
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/* verify channel */
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if (channel < 0 || channel >= AW36515_CHANNEL_NUM) {
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pr_err("%s, Failed with error channel\n", __func__);
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return -EINVAL;
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}
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switch (cmd) {
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case FLASH_IOC_SET_TIME_OUT_TIME_MS:
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pr_info("%s, FLASH_IOC_SET_TIME_OUT_TIME_MS(%d): %d\n",
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__func__, channel, (int)fl_arg->arg);
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aw36515_timeout_ms[channel] = fl_arg->arg;
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break;
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case FLASH_IOC_SET_DUTY:
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pr_info("%s. FLASH_IOC_SET_DUTY(%d): %d\n",
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__func__, channel, (int)fl_arg->arg);
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aw36515_set_level(channel, fl_arg->arg);
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break;
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case FLASH_IOC_SET_ONOFF:
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pr_info("%s. FLASH_IOC_SET_ONOFF(%d): %d\n",
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__func__, channel, (int)fl_arg->arg);
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if (fl_arg->arg == 1) {
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if (aw36515_timeout_ms[channel]) {
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ktime =
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ktime_set(aw36515_timeout_ms[channel] / 1000,
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(aw36515_timeout_ms[channel] % 1000) * 1000000);
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aw36515_timer_start(channel, ktime);
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}
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aw36515_enable(channel);
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} else {
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aw36515_disable(channel);
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aw36515_timer_cancel(channel);
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}
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break;
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default:
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pr_info("No such command and arg(%d): (%d, %d)\n",
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channel, _IOC_NR(cmd), (int)fl_arg->arg);
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return -ENOTTY;
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}
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return 0;
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}
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static int aw36515_open(void)
|
|
{
|
|
/* Actual behavior move to set driver function */
|
|
/*since power saving issue */
|
|
return 0;
|
|
}
|
|
|
|
static int aw36515_release(void)
|
|
{
|
|
/* uninit chip and clear usage count */
|
|
mutex_lock(&aw36515_mutex);
|
|
use_count--;
|
|
if (!use_count)
|
|
aw36515_uninit();
|
|
if (use_count < 0)
|
|
use_count = 0;
|
|
mutex_unlock(&aw36515_mutex);
|
|
|
|
pr_info("Release: %d\n", use_count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aw36515_set_driver(int set)
|
|
{
|
|
/* init chip and set usage count */
|
|
mutex_lock(&aw36515_mutex);
|
|
if (!use_count)
|
|
aw36515_init();
|
|
use_count++;
|
|
mutex_unlock(&aw36515_mutex);
|
|
|
|
pr_info("Set driver: %d\n", use_count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t aw36515_strobe_store(struct flashlight_arg arg)
|
|
{
|
|
aw36515_set_driver(1);
|
|
aw36515_set_level(arg.ct, arg.level);
|
|
aw36515_enable(arg.ct);
|
|
msleep(arg.dur);
|
|
aw36515_disable(arg.ct);
|
|
aw36515_set_driver(0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct flashlight_operations aw36515_ops = {
|
|
aw36515_open,
|
|
aw36515_release,
|
|
aw36515_ioctl,
|
|
aw36515_strobe_store,
|
|
aw36515_set_driver
|
|
};
|
|
|
|
/******************************************************************************
|
|
* I2C device and driver
|
|
*****************************************************************************/
|
|
static int aw36515_chip_init(struct aw36515_chip_data *chip)
|
|
{
|
|
/* NOTE: Chip initialication move to
|
|
*"set driver" operation for power saving issue.
|
|
*/
|
|
return 0;
|
|
}
|
|
|
|
/***************************************************************************/
|
|
/*AW36515 Debug file */
|
|
/***************************************************************************/
|
|
static ssize_t
|
|
aw36515_get_reg(struct device *cd, struct device_attribute *attr, char *buf)
|
|
{
|
|
unsigned char reg_val;
|
|
unsigned char i;
|
|
ssize_t len = 0;
|
|
|
|
for (i = 0; i < 0x0E; i++) {
|
|
reg_val = aw36515_read_reg(aw36515_i2c_client, i);
|
|
len += snprintf(buf+len, PAGE_SIZE-len,
|
|
"reg0x%2X = 0x%2X\n", i, reg_val);
|
|
}
|
|
len += snprintf(buf+len, PAGE_SIZE-len, "\r\n");
|
|
return len;
|
|
}
|
|
|
|
static ssize_t aw36515_set_reg(struct device *cd,
|
|
struct device_attribute *attr, const char *buf, size_t len)
|
|
{
|
|
unsigned int databuf[2];
|
|
|
|
if (sscanf(buf, "%x %x", &databuf[0], &databuf[1]) == 2)
|
|
aw36515_write_reg(aw36515_i2c_client, databuf[0], databuf[1]);
|
|
return len;
|
|
}
|
|
|
|
|
|
static ssize_t aw36515_store(struct device *cd,
|
|
struct device_attribute *attr, const char *buf, size_t len)
|
|
{
|
|
if(buf[0] == '0')
|
|
{
|
|
aw36515_enable(AW36515_CHANNEL_CH1);
|
|
}
|
|
else if(buf[0] == '1')
|
|
{
|
|
aw36515_disable(AW36515_CHANNEL_CH1);
|
|
}
|
|
else if(buf[0] == '2')
|
|
{
|
|
aw36515_enable(AW36515_CHANNEL_CH2);
|
|
}
|
|
else if(buf[0] == '3')
|
|
{
|
|
aw36515_disable(AW36515_CHANNEL_CH2);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
static DEVICE_ATTR(reg, 0660, aw36515_get_reg, aw36515_set_reg);
|
|
static DEVICE_ATTR(set, 0660, NULL, aw36515_store);
|
|
|
|
static int aw36515_create_sysfs(struct i2c_client *client)
|
|
{
|
|
int err;
|
|
struct device *dev = &(client->dev);
|
|
|
|
err = device_create_file(dev, &dev_attr_reg);
|
|
|
|
err = device_create_file(dev, &dev_attr_set);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int aw36515_parse_dt(struct device *dev,
|
|
struct aw36515_platform_data *pdata)
|
|
{
|
|
struct device_node *np, *cnp;
|
|
u32 decouple = 0;
|
|
int i = 0;
|
|
|
|
if (!dev || !dev->of_node || !pdata)
|
|
return -ENODEV;
|
|
|
|
np = dev->of_node;
|
|
|
|
pdata->channel_num = of_get_child_count(np);
|
|
if (!pdata->channel_num) {
|
|
AW36515_DEBUG("Parse no dt, node.\n");
|
|
return 0;
|
|
}
|
|
AW36515_DEBUG("Channel number(%d).\n", pdata->channel_num);
|
|
|
|
if (of_property_read_u32(np, "decouple", &decouple))
|
|
AW36515_DEBUG("Parse no dt, decouple.\n");
|
|
|
|
if (of_property_read_u32(np, "led_num", &led_num))
|
|
AW36515_DEBUG("Parse no dt, led_num.\n");
|
|
|
|
pdata->dev_id = devm_kzalloc(dev,
|
|
pdata->channel_num *
|
|
sizeof(struct flashlight_device_id),
|
|
GFP_KERNEL);
|
|
if (!pdata->dev_id)
|
|
return -ENOMEM;
|
|
|
|
for_each_child_of_node(np, cnp) {
|
|
if (of_property_read_u32(cnp, "type", &pdata->dev_id[i].type))
|
|
goto err_node_put;
|
|
if (of_property_read_u32(cnp, "ct", &pdata->dev_id[i].ct))
|
|
goto err_node_put;
|
|
if (of_property_read_u32(cnp, "part", &pdata->dev_id[i].part))
|
|
goto err_node_put;
|
|
snprintf(pdata->dev_id[i].name, FLASHLIGHT_NAME_SIZE,
|
|
AW36515_NAME);
|
|
pdata->dev_id[i].channel = i;
|
|
pdata->dev_id[i].decouple = decouple;
|
|
|
|
AW36515_DEBUG("Parse dt (type,ct,part,name,channel,decouple)=(%d,%d,%d,%s,%d,%d).\n",
|
|
pdata->dev_id[i].type, pdata->dev_id[i].ct,
|
|
pdata->dev_id[i].part, pdata->dev_id[i].name,
|
|
pdata->dev_id[i].channel,
|
|
pdata->dev_id[i].decouple);
|
|
i++;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_node_put:
|
|
of_node_put(cnp);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int
|
|
aw36515_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
|
{
|
|
struct aw36515_chip_data *chip;
|
|
struct aw36515_platform_data *pdata = client->dev.platform_data;
|
|
int err;
|
|
int i;
|
|
|
|
AW36515_DEBUG("%s Probe start.\n", __func__);
|
|
|
|
/* check i2c */
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
|
|
pr_err("Failed to check i2c functionality.\n");
|
|
err = -ENODEV;
|
|
goto err_out;
|
|
}
|
|
|
|
/* init chip private data */
|
|
chip = kzalloc(sizeof(struct aw36515_chip_data), GFP_KERNEL);
|
|
if (!chip) {
|
|
err = -ENOMEM;
|
|
goto err_out;
|
|
}
|
|
chip->client = client;
|
|
|
|
/* init platform data */
|
|
if (!pdata) {
|
|
pr_err("Platform data does not exist\n");
|
|
pdata =
|
|
kzalloc(sizeof(struct aw36515_platform_data), GFP_KERNEL);
|
|
if (!pdata) {
|
|
err = -ENOMEM;
|
|
goto err_init_pdata;
|
|
}
|
|
chip->no_pdata = 1;
|
|
}
|
|
chip->pdata = pdata;
|
|
|
|
err = aw36515_parse_dt(&g_aw36515_pdev->dev, chip->pdata);
|
|
if (err)
|
|
goto err_init_pdata;
|
|
|
|
i2c_set_clientdata(client, chip);
|
|
aw36515_i2c_client = client;
|
|
|
|
/* init mutex and spinlock */
|
|
mutex_init(&chip->lock);
|
|
|
|
/* init work queue */
|
|
INIT_WORK(&aw36515_work_ch1, aw36515_work_disable_ch1);
|
|
INIT_WORK(&aw36515_work_ch2, aw36515_work_disable_ch2);
|
|
|
|
/* init timer */
|
|
hrtimer_init(&aw36515_timer_ch1, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
|
|
aw36515_timer_ch1.function = aw36515_timer_func_ch1;
|
|
hrtimer_init(&aw36515_timer_ch2, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
|
|
aw36515_timer_ch2.function = aw36515_timer_func_ch2;
|
|
aw36515_timeout_ms[AW36515_CHANNEL_CH1] = 100;
|
|
aw36515_timeout_ms[AW36515_CHANNEL_CH2] = 100;
|
|
|
|
/* init chip hw */
|
|
aw36515_chip_init(chip);
|
|
|
|
/* register flashlight device */
|
|
if (pdata->channel_num) {
|
|
for (i = 0; i < pdata->channel_num; i++) {
|
|
if (flashlight_dev_register_by_device_id(&pdata->dev_id[i], &aw36515_ops)) {
|
|
err = -EFAULT;
|
|
goto err_free;
|
|
}
|
|
}
|
|
} else {
|
|
if (flashlight_dev_register(AW36515_NAME, &aw36515_ops)) {
|
|
err = -EFAULT;
|
|
goto err_free;
|
|
}
|
|
}
|
|
|
|
/* clear usage count */
|
|
use_count = 0;
|
|
|
|
aw36515_create_sysfs(client);
|
|
|
|
AW36515_DEBUG("%s Probe done.\n", __func__);
|
|
|
|
return 0;
|
|
|
|
err_free:
|
|
kfree(chip->pdata);
|
|
err_init_pdata:
|
|
i2c_set_clientdata(client, NULL);
|
|
kfree(chip);
|
|
err_out:
|
|
return err;
|
|
}
|
|
|
|
static int aw36515_i2c_remove(struct i2c_client *client)
|
|
{
|
|
struct aw36515_chip_data *chip = i2c_get_clientdata(client);
|
|
|
|
AW36515_DEBUG("Remove start.\n");
|
|
|
|
/* flush work queue */
|
|
flush_work(&aw36515_work_ch1);
|
|
flush_work(&aw36515_work_ch2);
|
|
|
|
/* unregister flashlight operations */
|
|
flashlight_dev_unregister(AW36515_NAME);
|
|
|
|
/* free resource */
|
|
if (chip->no_pdata)
|
|
kfree(chip->pdata);
|
|
kfree(chip);
|
|
|
|
AW36515_DEBUG("Remove done.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id aw36515_i2c_id[] = {
|
|
{AW36515_NAME, 0},
|
|
{}
|
|
};
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id aw36515_i2c_of_match[] = {
|
|
{.compatible = AW36515_DTNAME_I2C},
|
|
{},
|
|
};
|
|
#endif
|
|
|
|
static struct i2c_driver aw36515_i2c_driver = {
|
|
.driver = {
|
|
.name = AW36515_NAME,
|
|
#ifdef CONFIG_OF
|
|
.of_match_table = aw36515_i2c_of_match,
|
|
#endif
|
|
},
|
|
.probe = aw36515_i2c_probe,
|
|
.remove = aw36515_i2c_remove,
|
|
.id_table = aw36515_i2c_id,
|
|
};
|
|
|
|
#if CONFIG_PRIZE_SOFT_LED_ENABLE
|
|
//prize add by lipengpeng 20220610 start
|
|
static volatile int cur_soft_torch_status = 0;
|
|
|
|
static ssize_t device_soft_torch_value_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
printk("aw36515 cur_soft_torch_status=%d\n", cur_soft_torch_status);
|
|
return sprintf(buf, "%u\n", cur_soft_torch_status);
|
|
}
|
|
static ssize_t device_soft_torch_value_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t size)
|
|
{
|
|
//ktime_t ktime;
|
|
|
|
printk("aw36515 %s ON/OFF value = %d:\n ", cur_soft_torch_status);
|
|
if(sscanf(buf, "%u", &cur_soft_torch_status) != 1)
|
|
{
|
|
printk("aw36515Invalid values\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if(1==cur_soft_torch_status)
|
|
{
|
|
//aw36515_timeout_ms[AW36515_CHANNEL_CH1]=100;
|
|
|
|
//aw36515_set_level(AW36515_CHANNEL_CH1, 1);
|
|
//printk("aw36515_set_level[AW36515_CHANNEL_CH1]=%d\n",aw36515_timeout_ms[AW36515_CHANNEL_CH1]);
|
|
//if (aw36515_timeout_ms[AW36515_CHANNEL_CH1]) {
|
|
// printk("aw36515_timeout_ms[AW36515_CHANNEL_CH1]=%d\n",aw36515_timeout_ms[AW36515_CHANNEL_CH1]);
|
|
// ktime =ktime_set(aw36515_timeout_ms[AW36515_CHANNEL_CH1] / 1000,
|
|
// (aw36515_timeout_ms[AW36515_CHANNEL_CH1] % 1000) * 1000000);
|
|
// aw36515_timer_start(AW36515_CHANNEL_CH1, ktime);
|
|
|
|
// }
|
|
aw36515_enable(AW36515_CHANNEL_CH1);
|
|
aw36515_set_level_ch1(6);
|
|
|
|
}else{
|
|
aw36515_disable(AW36515_CHANNEL_CH1);
|
|
aw36515_timer_cancel(AW36515_CHANNEL_CH1);
|
|
aw36515_set_level_ch1(0);
|
|
|
|
}
|
|
return size;
|
|
}
|
|
|
|
static DEVICE_ATTR(soft_torch_value, 0664, device_soft_torch_value_show, device_soft_torch_value_store);
|
|
|
|
static volatile int cur_soft_torch2_status = 0;
|
|
|
|
static ssize_t device_soft_torch2_value_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
printk("aw36515 cur_soft_torch2_status=%d\n", cur_soft_torch2_status);
|
|
return sprintf(buf, "%u\n", cur_soft_torch2_status);
|
|
}
|
|
static ssize_t device_soft_torch2_value_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t size)
|
|
{
|
|
//ktime_t ktime;
|
|
|
|
printk("aw36515 %s ON/OFF value = %d:\n ", cur_soft_torch2_status);
|
|
if(sscanf(buf, "%u", &cur_soft_torch2_status) != 1)
|
|
{
|
|
printk("aw36515Invalid values\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if(1==cur_soft_torch2_status)
|
|
{
|
|
//aw36515_timeout_ms[AW36515_CHANNEL_CH1]=100;
|
|
|
|
//aw36515_set_level(AW36515_CHANNEL_CH1, 1);
|
|
//printk("aw36515_set_level[AW36515_CHANNEL_CH1]=%d\n",aw36515_timeout_ms[AW36515_CHANNEL_CH1]);
|
|
//if (aw36515_timeout_ms[AW36515_CHANNEL_CH1]) {
|
|
// printk("aw36515_timeout_ms[AW36515_CHANNEL_CH1]=%d\n",aw36515_timeout_ms[AW36515_CHANNEL_CH1]);
|
|
// ktime =ktime_set(aw36515_timeout_ms[AW36515_CHANNEL_CH1] / 1000,
|
|
// (aw36515_timeout_ms[AW36515_CHANNEL_CH1] % 1000) * 1000000);
|
|
// aw36515_timer_start(AW36515_CHANNEL_CH1, ktime);
|
|
|
|
// }
|
|
aw36515_enable(AW36515_CHANNEL_CH2);
|
|
aw36515_set_level_ch2(6);
|
|
|
|
}else{
|
|
aw36515_disable(AW36515_CHANNEL_CH2);
|
|
aw36515_timer_cancel(AW36515_CHANNEL_CH2);
|
|
aw36515_set_level_ch2(0);
|
|
|
|
}
|
|
return size;
|
|
}
|
|
|
|
static DEVICE_ATTR(soft_torch2_value, 0664, device_soft_torch2_value_show, device_soft_torch2_value_store);
|
|
#endif
|
|
//prize add by lipengpeng 20220610 end
|
|
/******************************************************************************
|
|
* Platform device and driver
|
|
*****************************************************************************/
|
|
#if CONFIG_PRIZE_SOFT_LED_ENABLE
|
|
struct class *flash_soft_torch_class; //prize add by lipengpeng 20220610 start
|
|
struct class *flash_soft_torch2_class; //prize add by lipengpeng 20220610 start
|
|
#endif
|
|
//struct class *flash_torch_class; //prize add by lipengpeng 20220610 start
|
|
|
|
static int aw36515_probe(struct platform_device *dev)
|
|
{
|
|
#if CONFIG_PRIZE_SOFT_LED_ENABLE
|
|
struct device *flash_soft_torch_dev;
|
|
struct device *flash_soft_torch2_dev;
|
|
//struct device *flash_torch_dev;
|
|
#endif
|
|
g_aw36515_pdev = dev;
|
|
printk(" aw36515 Probe start.\n");
|
|
//prize add by lipengpeng 20220610 start
|
|
#if CONFIG_PRIZE_SOFT_LED_ENABLE
|
|
flash_soft_torch_class = class_create(THIS_MODULE, "flash_soft_torch");
|
|
|
|
if (IS_ERR(flash_soft_torch_class)) {
|
|
printk("Failed to create class(flash_soft_torch_class)!");
|
|
return 0;
|
|
}
|
|
|
|
flash_soft_torch_dev = device_create(flash_soft_torch_class, NULL, 0, NULL, "flash_soft_torch_data");
|
|
if (IS_ERR(flash_soft_torch_dev))
|
|
printk("Failed to create flash_soft_torch_dev device");
|
|
|
|
if (device_create_file(flash_soft_torch_dev, &dev_attr_soft_torch_value) < 0)
|
|
printk("Failed to create device file(%s)!",dev_attr_soft_torch_value.attr.name);
|
|
|
|
flash_soft_torch2_class = class_create(THIS_MODULE, "flash_soft_torch2");
|
|
|
|
if (IS_ERR(flash_soft_torch2_class)) {
|
|
printk("Failed to create class(flash_soft_torch2_class)!");
|
|
return 0;
|
|
}
|
|
|
|
flash_soft_torch2_dev = device_create(flash_soft_torch2_class, NULL, 0, NULL, "flash_soft_torch2_data");
|
|
if (IS_ERR(flash_soft_torch2_dev))
|
|
printk("Failed to create flash_soft_torch2_dev device");
|
|
|
|
if (device_create_file(flash_soft_torch2_dev, &dev_attr_soft_torch2_value) < 0)
|
|
printk("Failed to create device file(%s)!",dev_attr_soft_torch2_value.attr.name);
|
|
#endif
|
|
//prize add by lipengpeng 20220610 end
|
|
if (i2c_add_driver(&aw36515_i2c_driver)) {
|
|
pr_err("Failed to add i2c driver.\n");
|
|
return -1;
|
|
}
|
|
|
|
pr_info("%s Probe done.\n", __func__);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aw36515_remove(struct platform_device *dev)
|
|
{
|
|
pr_info("Remove start.\n");
|
|
|
|
i2c_del_driver(&aw36515_i2c_driver);
|
|
|
|
pr_info("Remove done.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id aw36515_of_match[] = {
|
|
{.compatible = AW36515_DTNAME},
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, aw36515_of_match);
|
|
#else
|
|
static struct platform_device aw36515_platform_device[] = {
|
|
{
|
|
.name = AW36515_NAME,
|
|
.id = 0,
|
|
.dev = {}
|
|
},
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(platform, aw36515_platform_device);
|
|
#endif
|
|
|
|
static struct platform_driver aw36515_platform_driver = {
|
|
.probe = aw36515_probe,
|
|
.remove = aw36515_remove,
|
|
.driver = {
|
|
.name = AW36515_NAME,
|
|
.owner = THIS_MODULE,
|
|
#ifdef CONFIG_OF
|
|
.of_match_table = aw36515_of_match,
|
|
#endif
|
|
},
|
|
};
|
|
|
|
static int __init flashlight_aw36515_init(void)
|
|
{
|
|
int ret;
|
|
|
|
pr_info("%s driver version %s.\n", __func__, AW36515_DRIVER_VERSION);
|
|
|
|
#ifndef CONFIG_OF
|
|
ret = platform_device_register(&aw36515_platform_device);
|
|
if (ret) {
|
|
pr_err("Failed to register platform device\n");
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
ret = platform_driver_register(&aw36515_platform_driver);
|
|
if (ret) {
|
|
pr_err("Failed to register platform driver\n");
|
|
return ret;
|
|
}
|
|
|
|
pr_info("flashlight_aw36515 Init done.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit flashlight_aw36515_exit(void)
|
|
{
|
|
pr_info("flashlight_aw36515-Exit start.\n");
|
|
|
|
platform_driver_unregister(&aw36515_platform_driver);
|
|
|
|
pr_info("flashlight_aw36515 Exit done.\n");
|
|
}
|
|
|
|
module_init(flashlight_aw36515_init);
|
|
module_exit(flashlight_aw36515_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Awinic");
|
|
MODULE_DESCRIPTION("AW36515 Flashlight Driver");
|
|
|