936 lines
24 KiB
C
Executable file
936 lines
24 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 AW36518_DTNAME
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#define AW36518_DTNAME "mediatek,flashlights_aw36518"
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#endif
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#ifndef AW36518_DTNAME_I2C
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#define AW36518_DTNAME_I2C "mediatek,flashlights_aw36518"
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#endif
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#define AW36518_NAME "flashlights_aw36518"
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#define AW36518_DRIVER_VERSION "V1.1.0"
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#define AW36518_REG_BOOST_CONFIG (0x07)
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#define AW36518_BIT_SOFT_RST_MASK (~(1<<7))
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#define AW36518_BIT_SOFT_RST_ENABLE (1<<7)
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#define AW36518_BIT_SOFT_RST_DISABLE (0<<7)
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/* define registers */
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#define AW36518_REG_CHIPID (0x00)
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#define AW36518_CHIPID (0x30)
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#define AW36518_REG_ENABLE (0x01)
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#define AW36518_MASK_ENABLE_LED1 (0x01)
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#define AW36518_DISABLE (0x00)
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#define AW36518_ENABLE_LED1 (0x03)
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#define AW36518_ENABLE_LED1_TORCH (0x0B)
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#define AW36518_REG_DEVICE_ID (0x0C)
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#define AW36518_DEVICE_ID (0x0A)
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#define AW36518_ENABLE_LED1_FLASH (0x0F)
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#define AW36518_REG_DUMMY (0x09)
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#define AW36518_REG_FLASH_LEVEL_LED1 (0x03)
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#define AW36518_REG_TORCH_LEVEL_LED1 (0x05)
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#define AW36518_REG_CTRL1 (0x31)
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#define AW36518_REG_CTRL2 (0x69)
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#define AW36518_REG_CHIP_VENDOR_ID (0x25)
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#define AW36518_CHIP_VENDOR_ID (0x04)
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#define AW36518_REG_TIMING_CONF (0x08)
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#define AW36518_TORCH_RAMP_TIME (0x10)
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#define AW36518_FLASH_TIMEOUT (0x0A)
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#define AW36518_CHIP_STANDBY (0x80)
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/* define channel, level */
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#define AW36518_CHANNEL_NUM 1
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#define AW36518_CHANNEL_CH1 0
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#define AW36518_LEVEL_NUM 26
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#define AW36518_LEVEL_TORCH 7
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#define AW_I2C_RETRIES 5
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#define AW_I2C_RETRY_DELAY 2
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/* define mutex and work queue */
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static DEFINE_MUTEX(aw36518_mutex);
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static struct work_struct aw36518_work_ch1;
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struct i2c_client *aw36518_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 *aw36518_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 aw36518_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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};
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/* aw36518 chip data */
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struct aw36518_chip_data {
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struct i2c_client *client;
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struct aw36518_platform_data *pdata;
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struct mutex lock;
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unsigned int chipID;
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unsigned int deviceID;
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bool is_mode_switch_init;
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u8 last_flag;
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u8 no_pdata;
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};
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/******************************************************************************
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* aw36518 operations
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*****************************************************************************/
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static const unsigned char aw36518_torch_level[AW36518_LEVEL_NUM] = {
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0x06, 0x0F, 0x17, 0x1F, 0x27, 0x2F, 0x37, 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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static const unsigned char aw36518_flash_level[AW36518_LEVEL_NUM] = {
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0x01, 0x03, 0x05, 0x07, 0x09, 0x0B, 0x0D, 0x10, 0x14, 0x19,
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0x1D, 0x21, 0x25, 0x2A, 0x2E, 0x32, 0x37, 0x3B, 0x3F, 0x43,
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0x48, 0x4C, 0x50, 0x54, 0x59, 0x5D};
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static volatile unsigned char aw36518_reg_enable;
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static volatile int aw36518_level_ch1 = -1;
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static int aw36518_is_torch(int level)
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{
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if (level >= AW36518_LEVEL_TORCH)
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return -1;
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return 0;
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}
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static int aw36518_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 >= AW36518_LEVEL_NUM)
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level = AW36518_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 aw36518_i2c_write(struct i2c_client *client, unsigned char reg, unsigned char val)
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{
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int ret;
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unsigned char cnt = 0;
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while (cnt < AW_I2C_RETRIES) {
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ret = i2c_smbus_write_byte_data(client, reg, val);
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if (ret < 0) {
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pr_info("%s: i2c_write addr=0x%02X, data=0x%02X, cnt=%d, error=%d\n",
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__func__, reg, val, cnt, ret);
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} else {
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break;
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}
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cnt++;
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msleep(AW_I2C_RETRY_DELAY);
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}
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return ret;
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}
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static int aw36518_i2c_read(struct i2c_client *client, unsigned char reg, unsigned char *val)
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{
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int ret;
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unsigned char cnt = 0;
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while (cnt < AW_I2C_RETRIES) {
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ret = i2c_smbus_read_byte_data(client, reg);
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if (ret < 0) {
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pr_info("%s: i2c_read addr=0x%02X, cnt=%d, error=%d\n",
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__func__, reg, cnt, ret);
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} else {
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*val = ret;
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break;
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}
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cnt++;
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msleep(AW_I2C_RETRY_DELAY);
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}
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return ret;
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}
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static void aw36518_mode_cfg_init(void)
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{
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struct aw36518_chip_data *pdata = aw36518_i2c_client->dev.driver_data;
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if (pdata->is_mode_switch_init)
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{
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aw36518_i2c_write(aw36518_i2c_client, AW36518_REG_CTRL2, 0x02);
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aw36518_i2c_write(aw36518_i2c_client, AW36518_REG_CTRL1, 0x0C);
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}
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}
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static void aw36518_soft_reset(void)
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{
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unsigned char reg_val;
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aw36518_i2c_read(aw36518_i2c_client, AW36518_REG_BOOST_CONFIG, ®_val);
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reg_val &= AW36518_BIT_SOFT_RST_MASK;
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reg_val |= AW36518_BIT_SOFT_RST_ENABLE;
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aw36518_i2c_write(aw36518_i2c_client, AW36518_REG_BOOST_CONFIG, reg_val);
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msleep(5);
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}
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/* flashlight enable function */
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static int aw36518_enable_ch1(void)
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{
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unsigned char reg, val;
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aw36518_mode_cfg_init();
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printk("aw36518_is_torch(aw36518_level_ch1)==%d\n",aw36518_is_torch(aw36518_level_ch1));
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reg = AW36518_REG_ENABLE;
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if (!aw36518_is_torch(aw36518_level_ch1)) {
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/* torch mode */
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printk(" enter torch mode set.\n");
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aw36518_reg_enable |= AW36518_ENABLE_LED1_TORCH;
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} else {
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/* flash mode */
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printk("enter flash mode set.\n");
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aw36518_reg_enable |= AW36518_ENABLE_LED1_FLASH;
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}
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val = aw36518_reg_enable;
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printk("aw36518_is_torch(aw36518_level_ch1)==%d\n",aw36518_is_torch(aw36518_level_ch1));
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aw36518_i2c_write(aw36518_i2c_client, AW36518_REG_ENABLE, 0x0b);
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return aw36518_i2c_write(aw36518_i2c_client, AW36518_REG_ENABLE, 0x0b);
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}
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/* flashlight disable function */
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static int aw36518_disable_ch1(void)
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{
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unsigned char reg, val;
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aw36518_mode_cfg_init();
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reg = AW36518_REG_ENABLE;
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aw36518_reg_enable &= (~AW36518_ENABLE_LED1_FLASH);
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val = aw36518_reg_enable;
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return aw36518_i2c_write(aw36518_i2c_client, reg, val);
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}
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static int aw36518_enable(int channel)
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{
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if (channel == AW36518_CHANNEL_CH1)
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aw36518_enable_ch1();
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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 aw36518_disable(int channel)
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{
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if (channel == AW36518_CHANNEL_CH1)
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aw36518_disable_ch1();
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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 aw36518_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 = aw36518_verify_level(level);
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/* set torch brightness level */
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reg = AW36518_REG_TORCH_LEVEL_LED1;
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val = aw36518_torch_level[level];
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ret = aw36518_i2c_write(aw36518_i2c_client, reg, val);
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aw36518_level_ch1 = level;
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/* set flash brightness level */
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reg = AW36518_REG_FLASH_LEVEL_LED1;
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val = aw36518_flash_level[level];
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ret = aw36518_i2c_write(aw36518_i2c_client, reg, val);
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return ret;
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}
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static int aw36518_set_level(int channel, int level)
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{
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if (channel == AW36518_CHANNEL_CH1)
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aw36518_set_level_ch1(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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int aw36518_read_vendor_id(void)
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{
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unsigned char val, reg_data;
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struct aw36518_chip_data *pdata = aw36518_i2c_client->dev.driver_data;
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usleep_range(2000, 2500);
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/* read chip vendor information */
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aw36518_i2c_read(aw36518_i2c_client, AW36518_REG_CHIP_VENDOR_ID, &val);
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pr_info("aw36518 0x25 vendorID = 0x%2x\n", val);
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aw36518_i2c_read(aw36518_i2c_client, AW36518_REG_DUMMY, ®_data);
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pr_info("aw36518 0x09 ver = 0x%2x\n", reg_data);
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if (((val & 0x04) == AW36518_CHIP_VENDOR_ID) && !(reg_data & 0x01)) {
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pr_info("aw36518 is_mode_switch_init is true\n");
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pdata->is_mode_switch_init = true;
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} else {
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pdata->is_mode_switch_init = false;
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pr_info("aw36518 is_mode_switch_init is false\n");
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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 aw36518_init(void)
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{
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int ret;
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unsigned char reg, val;
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/* clear enable register */
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aw36518_mode_cfg_init();
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reg = AW36518_REG_ENABLE;
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val = AW36518_DISABLE;
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ret = aw36518_i2c_write(aw36518_i2c_client, reg, val);
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aw36518_reg_enable = val;
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/* set torch current ramp time and flash timeout */
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reg = AW36518_REG_TIMING_CONF;
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val = AW36518_TORCH_RAMP_TIME | AW36518_FLASH_TIMEOUT;
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ret = aw36518_i2c_write(aw36518_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 aw36518_uninit(void)
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{
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aw36518_disable(AW36518_CHANNEL_CH1);
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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 aw36518_timer_ch1;
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static unsigned int aw36518_timeout_ms[AW36518_CHANNEL_NUM];
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static void aw36518_work_disable_ch1(struct work_struct *data)
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{
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pr_info("%s, ht work queue callback\n", __func__);
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aw36518_disable_ch1();
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}
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static enum hrtimer_restart aw36518_timer_func_ch1(struct hrtimer *timer)
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{
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schedule_work(&aw36518_work_ch1);
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return HRTIMER_NORESTART;
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}
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int aw36518_timer_start(int channel, ktime_t ktime)
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{
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if (channel == AW36518_CHANNEL_CH1)
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hrtimer_start(&aw36518_timer_ch1, 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 aw36518_timer_cancel(int channel)
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{
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if (channel == AW36518_CHANNEL_CH1)
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hrtimer_cancel(&aw36518_timer_ch1);
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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 aw36518_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 >= AW36518_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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aw36518_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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aw36518_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 (aw36518_timeout_ms[channel]) {
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ktime =
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ktime_set(aw36518_timeout_ms[channel] / 1000,
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(aw36518_timeout_ms[channel] % 1000) * 1000000);
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aw36518_timer_start(channel, ktime);
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}
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aw36518_enable(channel);
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} else {
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aw36518_disable(channel);
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aw36518_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 aw36518_open(void)
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{
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/* Actual behavior move to set driver function */
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/*since power saving issue */
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return 0;
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}
|
|
|
|
static int aw36518_release(void)
|
|
{
|
|
/* uninit chip and clear usage count */
|
|
mutex_lock(&aw36518_mutex);
|
|
use_count--;
|
|
if (!use_count)
|
|
aw36518_uninit();
|
|
if (use_count < 0)
|
|
use_count = 0;
|
|
mutex_unlock(&aw36518_mutex);
|
|
|
|
pr_info("Release: %d\n", use_count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aw36518_set_driver(int set)
|
|
{
|
|
/* init chip and set usage count */
|
|
mutex_lock(&aw36518_mutex);
|
|
if (!use_count)
|
|
aw36518_init();
|
|
use_count++;
|
|
mutex_unlock(&aw36518_mutex);
|
|
|
|
pr_info("Set driver: %d\n", use_count);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t aw36518_strobe_store(struct flashlight_arg arg)
|
|
{
|
|
aw36518_set_driver(1);
|
|
aw36518_set_level(arg.ct, arg.level);
|
|
aw36518_enable(arg.ct);
|
|
msleep(arg.dur);
|
|
aw36518_disable(arg.ct);
|
|
aw36518_set_driver(0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct flashlight_operations aw36518_ops = {
|
|
aw36518_open,
|
|
aw36518_release,
|
|
aw36518_ioctl,
|
|
aw36518_strobe_store,
|
|
aw36518_set_driver
|
|
};
|
|
|
|
/******************************************************************************
|
|
* I2C device and driver
|
|
*****************************************************************************/
|
|
static int aw36518_chip_init(struct aw36518_chip_data *chip)
|
|
{
|
|
/* NOTE: Chip initialication move to
|
|
*"set driver" operation for power saving issue.
|
|
*/
|
|
int ret = 0;
|
|
|
|
ret = aw36518_init();
|
|
|
|
return ret;
|
|
}
|
|
|
|
/***************************************************************************/
|
|
/*AW36518 Debug file */
|
|
/***************************************************************************/
|
|
static ssize_t
|
|
aw36518_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++) {
|
|
aw36518_i2c_read(aw36518_i2c_client, i, ®_val);
|
|
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 aw36518_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)
|
|
aw36518_i2c_write(aw36518_i2c_client, databuf[0], databuf[1]);
|
|
return len;
|
|
}
|
|
|
|
static DEVICE_ATTR(reg, 0660, aw36518_get_reg, aw36518_set_reg);
|
|
|
|
static int aw36518_create_sysfs(struct i2c_client *client)
|
|
{
|
|
int err;
|
|
struct device *dev = &(client->dev);
|
|
|
|
err = device_create_file(dev, &dev_attr_reg);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
aw36518_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
|
|
{
|
|
struct aw36518_chip_data *chip;
|
|
struct aw36518_platform_data *pdata = client->dev.platform_data;
|
|
int err;
|
|
|
|
pr_info("%s Probe start.\n", __func__);
|
|
|
|
/* check i2c */
|
|
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
|
|
pr_err("%s, Failed to check i2c functionality.\n", __func__);
|
|
err = -ENODEV;
|
|
goto err_out;
|
|
}
|
|
|
|
/* init chip private data */
|
|
chip = kzalloc(sizeof(struct aw36518_chip_data), GFP_KERNEL);
|
|
if (!chip) {
|
|
pr_err("%s, Failed to kzalloc memory.\n", __func__);
|
|
err = -ENOMEM;
|
|
goto err_out;
|
|
}
|
|
chip->client = client;
|
|
|
|
/* init platform data */
|
|
if (!pdata) {
|
|
pr_err("%s, Platform data does not exist\n", __func__);
|
|
pdata =
|
|
kzalloc(sizeof(struct aw36518_platform_data), GFP_KERNEL);
|
|
if (!pdata) {
|
|
pr_err("%s, Failed to kzalloc memory.\n", __func__);
|
|
err = -ENOMEM;
|
|
goto err_init_pdata;
|
|
}
|
|
chip->no_pdata = 1;
|
|
}
|
|
chip->pdata = pdata;
|
|
i2c_set_clientdata(client, chip);
|
|
aw36518_i2c_client = client;
|
|
|
|
/* init mutex and spinlock */
|
|
mutex_init(&chip->lock);
|
|
|
|
/* read 0x25 vendor id */
|
|
aw36518_read_vendor_id();
|
|
|
|
/* soft rst */
|
|
aw36518_soft_reset();
|
|
|
|
/* init work queue */
|
|
INIT_WORK(&aw36518_work_ch1, aw36518_work_disable_ch1);
|
|
|
|
/* init timer */
|
|
hrtimer_init(&aw36518_timer_ch1, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
|
|
aw36518_timer_ch1.function = aw36518_timer_func_ch1;
|
|
aw36518_timeout_ms[AW36518_CHANNEL_CH1] = 100;
|
|
|
|
/* init chip hw */
|
|
aw36518_chip_init(chip);
|
|
|
|
/* register flashlight operations */
|
|
if (flashlight_dev_register(AW36518_NAME, &aw36518_ops)) {
|
|
pr_err("%s,Failed to register flashlight device.\n", __func__);
|
|
err = -EFAULT;
|
|
goto err_free;
|
|
}
|
|
|
|
/* clear usage count */
|
|
use_count = 0;
|
|
|
|
aw36518_create_sysfs(client);
|
|
|
|
pr_info("%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 aw36518_i2c_remove(struct i2c_client *client)
|
|
{
|
|
struct aw36518_chip_data *chip = i2c_get_clientdata(client);
|
|
|
|
pr_info("Remove start.\n");
|
|
|
|
/* flush work queue */
|
|
flush_work(&aw36518_work_ch1);
|
|
|
|
/* unregister flashlight operations */
|
|
flashlight_dev_unregister(AW36518_NAME);
|
|
|
|
/* free resource */
|
|
if (chip->no_pdata)
|
|
kfree(chip->pdata);
|
|
kfree(chip);
|
|
|
|
pr_info("Remove done.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void aw36518_i2c_shutdown(struct i2c_client *client)
|
|
{
|
|
pr_info("aw36518 shutdown start.\n");
|
|
|
|
aw36518_mode_cfg_init();
|
|
|
|
aw36518_i2c_write(aw36518_i2c_client, AW36518_REG_ENABLE,
|
|
AW36518_CHIP_STANDBY);
|
|
|
|
pr_info("aw36518 shutdown done.\n");
|
|
}
|
|
|
|
|
|
static const struct i2c_device_id aw36518_i2c_id[] = {
|
|
{AW36518_NAME, 0},
|
|
{}
|
|
};
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id aw36518_i2c_of_match[] = {
|
|
{.compatible = AW36518_DTNAME_I2C},
|
|
{},
|
|
};
|
|
#endif
|
|
|
|
static struct i2c_driver aw36518_i2c_driver = {
|
|
.driver = {
|
|
.name = AW36518_NAME,
|
|
#ifdef CONFIG_OF
|
|
.of_match_table = aw36518_i2c_of_match,
|
|
#endif
|
|
},
|
|
.probe = aw36518_i2c_probe,
|
|
.remove = aw36518_i2c_remove,
|
|
.shutdown = aw36518_i2c_shutdown,
|
|
.id_table = aw36518_i2c_id,
|
|
};
|
|
|
|
//prize add by lipengpeng 20220610 start
|
|
static volatile int cur_irtouch_status = 0;
|
|
|
|
static ssize_t device_irtouch_value_show(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
printk("aw36518 cur_irtouch_status=%d\n", cur_irtouch_status);
|
|
return sprintf(buf, "%u\n", cur_irtouch_status);
|
|
}
|
|
static ssize_t device_irtouch_value_store(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t size)
|
|
{
|
|
//ktime_t ktime;
|
|
|
|
printk("aw36518 %s ON/OFF value = %d:\n ", cur_irtouch_status);
|
|
if(sscanf(buf, "%u", &cur_irtouch_status) != 1)
|
|
{
|
|
printk("aw36518Invalid values\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if(1==cur_irtouch_status)
|
|
{
|
|
//aw36518_timeout_ms[AW36518_CHANNEL_CH1]=100;
|
|
|
|
//aw36518_set_level(AW36518_CHANNEL_CH1, 1);
|
|
//printk("aw36518_set_level[AW36518_CHANNEL_CH1]=%d\n",aw36518_timeout_ms[AW36518_CHANNEL_CH1]);
|
|
//if (aw36518_timeout_ms[AW36518_CHANNEL_CH1]) {
|
|
// printk("aw36518_timeout_ms[AW36518_CHANNEL_CH1]=%d\n",aw36518_timeout_ms[AW36518_CHANNEL_CH1]);
|
|
// ktime =ktime_set(aw36518_timeout_ms[AW36518_CHANNEL_CH1] / 1000,
|
|
// (aw36518_timeout_ms[AW36518_CHANNEL_CH1] % 1000) * 1000000);
|
|
// aw36518_timer_start(AW36518_CHANNEL_CH1, ktime);
|
|
|
|
// }
|
|
aw36518_enable(AW36518_CHANNEL_CH1);
|
|
aw36518_i2c_write(aw36518_i2c_client, 0x01, 0x0b);
|
|
|
|
}else{
|
|
aw36518_disable(AW36518_CHANNEL_CH1);
|
|
aw36518_timer_cancel(AW36518_CHANNEL_CH1);
|
|
aw36518_i2c_write(aw36518_i2c_client, 0x01, 0x00);
|
|
|
|
}
|
|
return size;
|
|
}
|
|
|
|
static DEVICE_ATTR(irtouch_value, 0664, device_irtouch_value_show, device_irtouch_value_store);
|
|
|
|
//prize add by lipengpeng 20220610 end
|
|
/******************************************************************************
|
|
* Platform device and driver
|
|
*****************************************************************************/
|
|
struct class *flash_irtouch_class; //prize add by lipengpeng 20220610 start
|
|
//struct class *flash_touch_class; //prize add by lipengpeng 20220610 start
|
|
|
|
static int aw36518_probe(struct platform_device *dev)
|
|
{
|
|
|
|
struct device *flash_irtouch_dev;
|
|
//struct device *flash_touch_dev;
|
|
|
|
|
|
printk(" aw36518 Probe start.\n");
|
|
//prize add by lipengpeng 20220610 start
|
|
flash_irtouch_class = class_create(THIS_MODULE, "flash_irtouch");
|
|
|
|
if (IS_ERR(flash_irtouch_class)) {
|
|
printk("Failed to create class(flash_irtouch_class)!");
|
|
return 0;
|
|
}
|
|
|
|
//flash_touch_class = class_create(THIS_MODULE, "flashlight_core");
|
|
|
|
//if (IS_ERR(flash_touch_class)) {
|
|
// printk("Failed to create class(flash_touch_class)!");
|
|
// return 0;
|
|
//}
|
|
|
|
flash_irtouch_dev = device_create(flash_irtouch_class, NULL, 0, NULL, "flash_irtouch_data");
|
|
if (IS_ERR(flash_irtouch_dev))
|
|
printk("Failed to create flash_irtouch_dev device");
|
|
|
|
|
|
//flash_touch_dev = device_create(flash_irtouch_class, NULL, 0, NULL, "flashlight");
|
|
//if (IS_ERR(flash_touch_dev))
|
|
// printk("Failed to create flash_touch_dev device");
|
|
|
|
if (device_create_file(flash_irtouch_dev, &dev_attr_irtouch_value) < 0)
|
|
printk("Failed to create device file(%s)!",dev_attr_irtouch_value.attr.name);
|
|
|
|
|
|
//if (device_create_file(flash_touch_dev, &dev_attr_touch_value) < 0)
|
|
// printk("Failed to create device file(%s)!",dev_attr_touch_value.attr.name);
|
|
|
|
//prize add by lipengpeng 20220610 end
|
|
if (i2c_add_driver(&aw36518_i2c_driver)) {
|
|
pr_err("Failed to add i2c driver.\n");
|
|
return -1;
|
|
}
|
|
|
|
pr_info("%s Probe done.\n", __func__);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int aw36518_remove(struct platform_device *dev)
|
|
{
|
|
pr_info("Remove start.\n");
|
|
|
|
i2c_del_driver(&aw36518_i2c_driver);
|
|
|
|
pr_info("Remove done.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_OF
|
|
static const struct of_device_id aw36518_of_match[] = {
|
|
{.compatible = AW36518_DTNAME},
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, aw36518_of_match);
|
|
#else
|
|
static struct platform_device aw36518_platform_device[] = {
|
|
{
|
|
.name = AW36518_NAME,
|
|
.id = 0,
|
|
.dev = {}
|
|
},
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(platform, aw36518_platform_device);
|
|
#endif
|
|
|
|
static struct platform_driver aw36518_platform_driver = {
|
|
.probe = aw36518_probe,
|
|
.remove = aw36518_remove,
|
|
.driver = {
|
|
.name = AW36518_NAME,
|
|
.owner = THIS_MODULE,
|
|
#ifdef CONFIG_OF
|
|
.of_match_table = aw36518_of_match,
|
|
#endif
|
|
},
|
|
};
|
|
|
|
static int __init flashlight_aw36518_init(void)
|
|
{
|
|
int ret;
|
|
|
|
pr_info("%s driver version %s.\n", __func__, AW36518_DRIVER_VERSION);
|
|
|
|
#ifndef CONFIG_OF
|
|
ret = platform_device_register(&aw36518_platform_device);
|
|
if (ret) {
|
|
pr_err("Failed to register platform device\n");
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
ret = platform_driver_register(&aw36518_platform_driver);
|
|
if (ret) {
|
|
pr_err("Failed to register platform driver\n");
|
|
return ret;
|
|
}
|
|
|
|
pr_info("flashlight_aw36518 Init done.\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit flashlight_aw36518_exit(void)
|
|
{
|
|
pr_info("flashlight_aw36518-Exit start.\n");
|
|
|
|
platform_driver_unregister(&aw36518_platform_driver);
|
|
|
|
pr_info("flashlight_aw36518 Exit done.\n");
|
|
}
|
|
|
|
module_init(flashlight_aw36518_init);
|
|
module_exit(flashlight_aw36518_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Awinic");
|
|
MODULE_DESCRIPTION("AW36518 Flashlight Driver");
|
|
|