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android_kernel_samsung_hero.../drivers/input/keyboard/abov_touchkey_ft16xx.c
HackerOO7 2bd1731e0a init: OSRC G9300ZCU2APF7
2016-08-17 16:41:52 +08:00

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47 KiB
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/* abov_touchkey.c -- Linux driver for abov chip as touchkey
*
* Copyright (C) 2013 Samsung Electronics Co.Ltd
* Author: Junkyeong Kim <jk0430.kim@samsung.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
*/
#include <linux/delay.h>
#include <linux/firmware.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/input/mt.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#include <asm/unaligned.h>
#include <linux/regulator/consumer.h>
#include <linux/pinctrl/consumer.h>
#ifdef CONFIG_OF
#include <linux/of_gpio.h>
#endif
#ifdef CONFIG_INPUT_BOOSTER
#include <linux/input/input_booster.h>
#endif
#define ABOV_TK_NAME "abov-touchkey"
/* registers */
#define ABOV_BTNSTATUS 0x00
#define ABOV_FW_VER 0x01
#define ABOV_PCB_VER 0x02
#define ABOV_COMMAND 0x03
#define ABOV_THRESHOLD 0x04
#define ABOV_SENS 0x05
#define ABOV_SETIDAC 0x06
#define ABOV_DIFFDATA 0x0A
#define ABOV_RAWDATA 0x0E
#define ABOV_VENDORID 0x12
#define ABOV_GLOVE 0x13
#define ABOV_KEYBOARD 0x13
#define ABOV_MD_VER 0x14
#define ABOV_FLIP 0x15
/* command */
#define CMD_LED_ON 0x10
#define CMD_LED_OFF 0x20
#define CMD_DATA_UPDATE 0x40
#define CMD_LED_CTRL_ON 0x60
#define CMD_LED_CTRL_OFF 0x70
#define CMD_STOP_MODE 0x80
#define CMD_GLOVE_OFF 0x10
#define CMD_GLOVE_ON 0x20
#define CMD_MOBILE_KBD_OFF 0x10
#define CMD_MOBILE_KBD_ON 0x20
#define CMD_FLIP_OFF 0x10
#define CMD_FLIP_ON 0x20
#define ABOV_BOOT_DELAY 45
#define ABOV_RESET_DELAY 150
static struct device *sec_touchkey;
/* Force FW update if module# is different */
#define FORCE_FW_UPDATE_DIFF_MODULE
/* Touchkey LED twinkle during booting in factory sw (in LCD detached status) */
#ifdef CONFIG_SEC_FACTORY
#define LED_TWINKLE_BOOTING
#endif
#define TK_FW_PATH_SDCARD "/sdcard/Firmware/TOUCHKEY/abov_fw.bin"
#ifdef LED_TWINKLE_BOOTING
static void led_twinkle_work(struct work_struct *work);
#endif
static void abov_tk_resume_work(struct work_struct *work);
static int abov_tk_resume(struct device *dev);
#define I2C_M_WR 0 /* for i2c */
enum {
BUILT_IN = 0,
SDCARD,
};
#ifdef CONFIG_SAMSUNG_LPM_MODE
extern int poweroff_charging;
#endif
extern int get_lcd_attached(char *mode);
extern unsigned int system_rev;
extern struct class *sec_class;
static int touchkey_keycode[] = { 0,
KEY_RECENT, KEY_BACK,
};
struct abov_tk_info {
struct i2c_client *client;
struct input_dev *input_dev;
struct abov_touchkey_dt_data *dtdata;
struct mutex lock;
struct pinctrl *pinctrl;
struct mutex device;
struct delayed_work resume_work;
const struct firmware *firm_data_bin;
const u8 *firm_data_ums;
char phys[32];
long firm_size;
int irq;
u16 menu_s;
u16 back_s;
u16 menu_raw;
u16 back_raw;
int (*power) (bool on);
int touchkey_count;
u8 fw_update_state;
u8 fw_ver;
u8 md_ver;
u8 checksum_h;
u8 checksum_l;
u8 fw_ver_bin;
u8 md_ver_bin;
u8 checksum_h_bin;
u8 checksum_l_bin;
bool enabled;
#ifdef GLOVE_MODE
bool glovemode;
#endif
bool keyboard_mode;
bool flip_mode;
bool probe_done;
#ifdef LED_TWINKLE_BOOTING
struct delayed_work led_twinkle_work;
bool led_twinkle_check;
#endif
#ifdef CONFIG_INPUT_BOOSTER
struct input_booster *tkey_booster;
#endif
};
struct abov_touchkey_dt_data {
unsigned long irq_flag;
int gpio_int;
int gpio_sda;
int gpio_scl;
int sub_det;
int gpio_tkey_led_en;
bool reg_boot_on;
struct regulator *vdd_io_vreg;
struct regulator *avdd_vreg;
int (*power) (struct abov_touchkey_dt_data *dtdata, bool on);
const char *fw_name;
};
static int abov_tk_input_open(struct input_dev *dev);
static void abov_tk_input_close(struct input_dev *dev);
static int abov_tk_i2c_read_checksum(struct abov_tk_info *info);
static int abov_touchkey_led_status;
static int abov_touchled_cmd_reserved;
static int abov_mode_enable(struct i2c_client *client, u8 cmd_reg, u8 cmd)
{
return i2c_smbus_write_byte_data(client, cmd_reg, cmd);
}
static int abov_tk_i2c_read(struct i2c_client *client,
u8 reg, u8 *val, unsigned int len)
{
struct abov_tk_info *info = i2c_get_clientdata(client);
struct i2c_msg msg;
int ret;
int retry = 3;
mutex_lock(&info->lock);
msg.addr = client->addr;
msg.flags = I2C_M_WR;
msg.len = 1;
msg.buf = &reg;
while (retry--) {
ret = i2c_transfer(client->adapter, &msg, 1);
if (ret >= 0)
break;
dev_err(&client->dev, "%s fail(address set)(%d)\n",
__func__, retry);
usleep_range(10 * 1000, 10 * 1000);
}
if (ret < 0) {
mutex_unlock(&info->lock);
return ret;
}
retry = 3;
msg.flags = 1;/*I2C_M_RD*/
msg.len = len;
msg.buf = val;
while (retry--) {
ret = i2c_transfer(client->adapter, &msg, 1);
if (ret >= 0) {
mutex_unlock(&info->lock);
return 0;
}
dev_err(&client->dev, "%s fail(data read)(%d)\n",
__func__, retry);
usleep_range(10 * 1000, 10 * 1000);
}
mutex_unlock(&info->lock);
return ret;
}
static int abov_tk_i2c_write(struct i2c_client *client,
u8 reg, u8 *val, unsigned int len)
{
struct abov_tk_info *info = i2c_get_clientdata(client);
struct i2c_msg msg[1];
unsigned char data[2];
int ret;
int retry = 3;
mutex_lock(&info->lock);
data[0] = reg;
data[1] = *val;
msg->addr = client->addr;
msg->flags = I2C_M_WR;
msg->len = 2;
msg->buf = data;
while (retry--) {
ret = i2c_transfer(client->adapter, msg, 1);
if (ret >= 0) {
mutex_unlock(&info->lock);
return 0;
}
dev_err(&client->dev, "%s fail(%d)\n",
__func__, retry);
usleep_range(10 * 1000, 10 * 1000);
}
mutex_unlock(&info->lock);
return ret;
}
static void release_all_fingers(struct abov_tk_info *info)
{
struct i2c_client *client = info->client;
int i;
dev_dbg(&client->dev, "[TK] %s\n", __func__);
for (i = 1; i < info->touchkey_count; i++) {
input_report_key(info->input_dev,
touchkey_keycode[i], 0);
}
input_sync(info->input_dev);
#ifdef CONFIG_INPUT_BOOSTER
if (info->tkey_booster && info->tkey_booster->dvfs_set)
info->tkey_booster->dvfs_set(info->tkey_booster, 2);
#endif
}
static int abov_tk_reset_for_bootmode(struct abov_tk_info *info)
{
info->dtdata->power(info->dtdata, false);
msleep(50);
info->dtdata->power(info->dtdata, true);
return 0;
}
static void abov_tk_reset(struct abov_tk_info *info)
{
struct i2c_client *client = info->client;
if (info->enabled == false)
return;
dev_notice(&client->dev, "%s++\n", __func__);
disable_irq_nosync(info->irq);
info->enabled = false;
release_all_fingers(info);
abov_tk_reset_for_bootmode(info);
msleep(ABOV_RESET_DELAY);
if (info->flip_mode)
abov_mode_enable(client, ABOV_FLIP, CMD_FLIP_ON);
#ifdef GLOVE_MODE
else if (info->glovemode)
abov_mode_enable(client, ABOV_GLOVE, CMD_GLOVE_ON);
#endif
if (info->keyboard_mode)
abov_mode_enable(client, ABOV_KEYBOARD, CMD_MOBILE_KBD_ON);
info->enabled = true;
enable_irq(info->irq);
dev_notice(&client->dev, "%s--\n", __func__);
}
static irqreturn_t abov_tk_interrupt(int irq, void *dev_id)
{
struct abov_tk_info *info = dev_id;
struct i2c_client *client = info->client;
int ret, retry;
u8 buf;
int menu_data;
int back_data;
u8 menu_press;
u8 back_press;
#ifdef CONFIG_INPUT_BOOSTER
bool press;
#endif
ret = abov_tk_i2c_read(client, ABOV_BTNSTATUS, &buf, 1);
if (ret < 0) {
retry = 3;
while (retry--) {
dev_err(&client->dev, "%s read fail(%d)\n",
__func__, retry);
ret = abov_tk_i2c_read(client, ABOV_BTNSTATUS, &buf, 1);
if (ret == 0)
break;
usleep_range(10 * 1000, 10 * 1000);
}
if (retry == 0) {
abov_tk_reset(info);
return IRQ_HANDLED;
}
}
// added dual key mode concept for screen pinning(google)
menu_data = buf & 0x03;
back_data = (buf >> 2) & 0x03;
menu_press = !(menu_data % 2);
back_press = !(back_data % 2);
if (menu_data)
input_report_key(info->input_dev,
touchkey_keycode[1], menu_press);
if (back_data)
input_report_key(info->input_dev,
touchkey_keycode[2], back_press);
input_sync(info->input_dev);
#ifdef CONFIG_SAMSUNG_PRODUCT_SHIP
dev_notice(&client->dev,
"key %s%s ver0x%02x\n",
menu_data ? (menu_press ? "P" : "R") : "",
back_data ? (back_press ? "P" : "R") : "",
info->fw_ver);
#else
dev_notice(&client->dev,
"%s%s%x ver0x%02x\n",
menu_data ? (menu_press ? "menu P " : "menu R ") : "",
back_data ? (back_press ? "back P " : "back R ") : "",
buf, info->fw_ver);
#endif
#ifdef CONFIG_INPUT_BOOSTER
press = (menu_data ? menu_press : 0) || (back_data ? back_press : 0);
if (info->tkey_booster && info->tkey_booster->dvfs_set)
info->tkey_booster->dvfs_set(info->tkey_booster, press);
#endif
return IRQ_HANDLED;
}
#ifdef CONFIG_INPUT_BOOSTER
static ssize_t boost_level_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
int val, stage;
struct dvfs value;
if (!info->tkey_booster) {
dev_err(&info->client->dev,
"%s: booster is NULL\n", __func__);
return count;
}
sscanf(buf, "%d", &val);
stage = 1 << val;
if (!(info->tkey_booster->dvfs_stage & stage)) {
dev_info(&info->client->dev,
"%s: wrong cmd %d\n", __func__, val);
return count;
}
info->tkey_booster->dvfs_boost_mode = stage;
dev_info(&info->client->dev,
"%s: dvfs_boost_mode = 0x%X\n",
__func__, info->tkey_booster->dvfs_boost_mode);
if (info->tkey_booster->dvfs_boost_mode == DVFS_STAGE_NONE) {
if (info->tkey_booster->dvfs_set)
info->tkey_booster->dvfs_set(info->tkey_booster, 2);
} else if (info->tkey_booster->dvfs_boost_mode == DVFS_STAGE_SINGLE) {
input_booster_get_default_setting("head", &value);
info->tkey_booster->dvfs_freq = value.cpu_freq;
dev_info(&info->client->dev,
"%s: boost_mode SINGLE, dvfs_freq = %d\n",
__func__, info->tkey_booster->dvfs_freq);
} else if (info->tkey_booster->dvfs_boost_mode == DVFS_STAGE_DUAL) {
input_booster_get_default_setting("tail", &value);
info->tkey_booster->dvfs_freq = value.cpu_freq;
dev_info(&info->client->dev,
"%s: boost_mode DUAL, dvfs_freq = %d\n",
__func__, info->tkey_booster->dvfs_freq);
}
return count;
}
#endif
static int touchkey_led_set(struct abov_tk_info *info, int data)
{
u8 cmd;
int ret;
if (data == 1)
cmd = CMD_LED_ON;
else
cmd = CMD_LED_OFF;
if (!info->enabled)
goto out;
ret = abov_tk_i2c_write(info->client, ABOV_BTNSTATUS, &cmd, 1);
if (ret < 0) {
dev_err(&info->client->dev, "%s fail(%d)\n", __func__, ret);
goto out;
}
return 0;
out:
abov_touchled_cmd_reserved = 1;
abov_touchkey_led_status = cmd;
return 1;
}
static ssize_t touchkey_led_control(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->client;
int data;
int ret;
ret = sscanf(buf, "%d", &data);
if (ret != 1) {
dev_err(&client->dev, "%s: cmd read err\n", __func__);
return count;
}
if (!(data == 0 || data == 1)) {
dev_err(&client->dev, "%s: wrong command(%d)\n",
__func__, data);
return count;
}
#ifdef LED_TWINKLE_BOOTING
if (info->led_twinkle_check == 1) {
info->led_twinkle_check = 0;
cancel_delayed_work(&info->led_twinkle_work);
}
#endif
if (touchkey_led_set(info, data))
return count;
msleep(20);
abov_touchled_cmd_reserved = 0;
dev_notice(&client->dev, "%s data(%d)\n",__func__,data);
return count;
}
static ssize_t touchkey_threshold_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->client;
u8 r_buf;
int ret;
ret = abov_tk_i2c_read(client, ABOV_THRESHOLD, &r_buf, 1);
if (ret < 0) {
dev_err(&client->dev, "%s fail(%d)\n", __func__, ret);
r_buf = 0;
}
return snprintf(buf, PAGE_SIZE, "%d\n", r_buf);
}
static void get_diff_data(struct abov_tk_info *info)
{
struct i2c_client *client = info->client;
u8 r_buf[4];
int ret;
ret = abov_tk_i2c_read(client, ABOV_DIFFDATA, r_buf, 4);
if (ret < 0) {
dev_err(&client->dev, "%s fail(%d)\n", __func__, ret);
info->menu_s = 0;
info->back_s = 0;
return;
}
info->menu_s = (r_buf[0] << 8) | r_buf[1];
info->back_s = (r_buf[2] << 8) | r_buf[3];
}
static ssize_t touchkey_menu_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
get_diff_data(info);
return sprintf(buf, "%d\n", info->menu_s);
}
static ssize_t touchkey_back_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
get_diff_data(info);
return sprintf(buf, "%d\n", info->back_s);
}
static void get_raw_data(struct abov_tk_info *info)
{
struct i2c_client *client = info->client;
u8 r_buf[4];
int ret;
ret = abov_tk_i2c_read(client, ABOV_RAWDATA, r_buf, 4);
if (ret < 0) {
dev_err(&client->dev, "%s fail(%d)\n", __func__, ret);
info->menu_raw = 0;
info->back_raw = 0;
return;
}
info->menu_raw = (r_buf[0] << 8) | r_buf[1];
info->back_raw = (r_buf[2] << 8) | r_buf[3];
}
static ssize_t touchkey_menu_raw_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
get_raw_data(info);
return snprintf(buf, PAGE_SIZE, "%d\n", info->menu_raw);
}
static ssize_t touchkey_back_raw_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
get_raw_data(info);
return snprintf(buf, PAGE_SIZE, "%d\n", info->back_raw);
}
static ssize_t bin_fw_ver(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->client;
dev_dbg(&client->dev, "fw version bin : 0x%x\n", info->fw_ver_bin);
return snprintf(buf, PAGE_SIZE, "0x%02x\n", info->fw_ver_bin);
}
static int get_tk_fw_version(struct abov_tk_info *info, bool bootmode)
{
struct i2c_client *client = info->client;
u8 buf;
int ret;
int retry = 3;
ret = abov_tk_i2c_read(client, ABOV_FW_VER, &buf, 1);
if (ret < 0) {
while (retry--) {
dev_err(&client->dev, "%s read fail(%d)\n",
__func__, retry);
if (!bootmode)
abov_tk_reset(info);
else
return -1;
ret = abov_tk_i2c_read(client, ABOV_FW_VER, &buf, 1);
if (ret == 0)
break;
}
if (retry == 0)
return -1;
}
info->fw_ver = buf;
retry = 3;
ret = abov_tk_i2c_read(client, ABOV_MD_VER, &buf, 1);
if (ret < 0) {
while (retry--) {
dev_err(&client->dev, "%s read fail(%d)\n",
__func__, retry);
if (!bootmode)
abov_tk_reset(info);
else
return -1;
ret = abov_tk_i2c_read(client, ABOV_MD_VER, &buf, 1);
if (ret == 0)
break;
}
if (retry == 0)
return -1;
}
info->md_ver = buf;
dev_notice(&client->dev, "%s : fw = 0x%x, md = 0x%x\n",
__func__, info->fw_ver, info->md_ver);
return 0;
}
static ssize_t read_fw_ver(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->client;
int ret;
ret = get_tk_fw_version(info, false);
if (ret < 0) {
dev_err(&client->dev, "%s read fail\n", __func__);
info->fw_ver = 0;
}
abov_tk_i2c_read_checksum(info);
return snprintf(buf, PAGE_SIZE, "0x%02x\n", info->fw_ver);
}
static int abov_load_fw(struct abov_tk_info *info, u8 cmd)
{
struct i2c_client *client = info->client;
struct file *fp;
mm_segment_t old_fs;
long fsize, nread;
int ret = 0;
switch(cmd) {
case BUILT_IN:
ret = request_firmware(&info->firm_data_bin,
info->dtdata->fw_name, &client->dev);
if (ret) {
dev_err(&client->dev,
"%s request_firmware fail. \n", __func__);
return ret;
}
/* Header info
* 0x00 0x91 : model info,
* 0x00 0x00 : module info (Rev 0.0),
* 0x00 0xF3 : F/W
* 0x00 0x00 0x17 0x10 : checksum
* ~ 22byte 0x00 */
info->fw_ver_bin = info->firm_data_bin->data[5];
info->md_ver_bin = info->firm_data_bin->data[1];
info->checksum_h_bin = info->firm_data_bin->data[8];
info->checksum_l_bin = info->firm_data_bin->data[9];
info->firm_size = info->firm_data_bin->size;
dev_notice(&client->dev, "%s : fw = 0x%x, md = 0x%x, crc = 0x%02x%02x\n",
__func__, info->fw_ver_bin, info->md_ver_bin,
info->checksum_h_bin, info->checksum_l_bin);
break;
case SDCARD:
old_fs = get_fs();
set_fs(get_ds());
fp = filp_open(TK_FW_PATH_SDCARD, O_RDONLY, S_IRUSR);
if (IS_ERR(fp)) {
dev_err(&client->dev,
"%s %s open error\n", __func__, TK_FW_PATH_SDCARD);
ret = -ENOENT;
goto fail_sdcard_open;
}
fsize = fp->f_path.dentry->d_inode->i_size;
info->firm_data_ums = kzalloc((size_t)fsize, GFP_KERNEL);
if (!info->firm_data_ums) {
dev_err(&client->dev,
"%s fail to kzalloc for fw\n", __func__);
ret = -ENOMEM;
goto fail_sdcard_kzalloc;
}
nread = vfs_read(fp,
(char __user *)info->firm_data_ums, fsize, &fp->f_pos);
if (nread != fsize) {
dev_err(&client->dev,
"%s fail to vfs_read file\n", __func__);
ret = -EINVAL;
goto fail_sdcard_size;
}
filp_close(fp, current->files);
set_fs(old_fs);
info->firm_size = nread;
break;
default:
ret = -1;
break;
}
dev_notice(&client->dev, "fw_size : %lu\n", info->firm_size);
dev_notice(&client->dev, "%s success\n", __func__);
return ret;
fail_sdcard_size:
kfree(&info->firm_data_ums);
fail_sdcard_kzalloc:
filp_close(fp, current->files);
fail_sdcard_open:
set_fs(old_fs);
return ret;
}
static int abov_tk_check_busy(struct abov_tk_info *info)
{
int ret, count = 0;
unsigned char val = 0x00;
do {
ret = i2c_master_recv(info->client, &val, sizeof(val));
if (val & 0x01) {
count++;
if (count > 1000)
dev_err(&info->client->dev,
"%s: busy %d\n", __func__, count);
return ret;
} else {
break;
}
} while(1);
return ret;
}
static int abov_tk_i2c_read_checksum(struct abov_tk_info *info)
{
unsigned char data[6] = {0xAC, 0x9E, 0x10, 0x00, 0x3F, 0xFF};
unsigned char checksum[5] = {0, };
int ret;
unsigned char reg = 0x00;
i2c_master_send(info->client, data, 6);
usleep_range(5 * 1000, 5 * 1000);
abov_tk_check_busy(info);
ret = abov_tk_i2c_read(info->client, reg, checksum, 5);
dev_info(&info->client->dev, "%s: ret:%d [%X][%X][%X][%X][%X]\n",
__func__, ret, checksum[0], checksum[1], checksum[2]
, checksum[3], checksum[4]);
info->checksum_h = checksum[3];
info->checksum_l = checksum[4];
return 0;
}
static int abov_tk_fw_write(struct abov_tk_info *info, unsigned char *addrH,
unsigned char *addrL, unsigned char *val)
{
int length = 36, ret = 0;
unsigned char data[36];
data[0] = 0xAC;
data[1] = 0x7A;
memcpy(&data[2], addrH, 1);
memcpy(&data[3], addrL, 1);
memcpy(&data[4], val, 32);
ret = i2c_master_send(info->client, data, length);
if (ret != length) {
dev_err(&info->client->dev,
"%s: write fail[%x%x], %d\n", __func__, *addrH, *addrL, ret);
return ret;
}
usleep_range(3 * 1000, 3 * 1000);
abov_tk_check_busy(info);
return 0;
}
static int abov_tk_fw_mode_enter(struct abov_tk_info *info)
{
unsigned char data[3] = {0xAC, 0x5B, 0x2D};
int ret = 0;
ret = i2c_master_send(info->client, data, 3);
if (ret != 3) {
dev_err(&info->client->dev,
"%s: write fail\n", __func__);
return -1;
}
return 0;
}
static int abov_tk_fw_update(struct abov_tk_info *info, u8 cmd)
{
int ret, ii = 0;
int count;
unsigned short address;
unsigned char addrH, addrL;
unsigned char data[32] = {0, };
dev_err(&info->client->dev, "%s: start\n", __func__);
count = info->firm_size / 32;
address = 0x1000;
dev_err(&info->client->dev, "%s: reset\n", __func__);
abov_tk_reset_for_bootmode(info);
msleep(ABOV_BOOT_DELAY);
ret = abov_tk_fw_mode_enter(info);
if (ret < 0) {
dev_err(&info->client->dev,
"%s: failed to enter fw_mode\n", __func__);
return ret;
}
dev_err(&info->client->dev, "%s: fw_mode_cmd sended\n", __func__);
msleep(1100);
dev_err(&info->client->dev, "%s: fw_write start\n", __func__);
for (ii = 1; ii < count; ii++) {
/* first 32byte is header */
addrH = (unsigned char)((address >> 8) & 0xFF);
addrL = (unsigned char)(address & 0xFF);
if (cmd == BUILT_IN)
memcpy(data, &info->firm_data_bin->data[ii * 32], 32);
else if (cmd == SDCARD)
memcpy(data, &info->firm_data_ums[ii * 32], 32);
ret = abov_tk_fw_write(info, &addrH, &addrL, data);
if (ret < 0) {
pr_err("%s: err, no device : %d\n", __func__, ret);
return ret;
}
address += 0x20;
memset(data, 0, 32);
}
dev_err(&info->client->dev, "%s: fw_write end\n", __func__);
ret = abov_tk_i2c_read_checksum(info);
dev_err(&info->client->dev, "%s: checksum readed\n", __func__);
return ret;
}
static void abov_release_fw(struct abov_tk_info *info, u8 cmd)
{
switch(cmd) {
case BUILT_IN:
release_firmware(info->firm_data_bin);
break;
case SDCARD:
kfree(info->firm_data_ums);
break;
default:
break;
}
}
static int abov_flash_fw(struct abov_tk_info *info, bool probe, u8 cmd)
{
struct i2c_client *client = info->client;
int retry = 2;
int ret;
int block_count;
int fw_ver, checksum_h, checksum_l;
ret = get_tk_fw_version(info, probe);
if (ret)
info->fw_ver = 0;
ret = abov_load_fw(info, cmd);
if (ret) {
dev_err(&client->dev,
"%s fw load fail\n", __func__);
return ret;
}
if (cmd == BUILT_IN) {
fw_ver = info->fw_ver_bin;
checksum_h = info->checksum_h_bin;
checksum_l = info->checksum_l_bin;
} else if (cmd == SDCARD) {
fw_ver = info->firm_data_ums[5];
checksum_h = info->firm_data_ums[8];
checksum_l = info->firm_data_ums[9];
} else {
ret = -1;
goto out;
}
block_count = (int)(info->firm_size / 32);
while (retry--) {
ret = abov_tk_fw_update(info, cmd);
if (ret < 0)
break;
if ((info->checksum_h != checksum_h) ||
(info->checksum_l != checksum_l)) {
dev_err(&client->dev,
"%s checksum fail.(0x%x,0x%x),(0x%x,0x%x) retry:%d\n",
__func__, info->checksum_h, info->checksum_l,
checksum_h, checksum_l, retry);
ret = -1;
continue;
} else {
dev_info(&client->dev, "%s checksum success, 0x%02x%02x\n",
__func__, info->checksum_h, info->checksum_l);
}
abov_tk_reset_for_bootmode(info);
msleep(ABOV_RESET_DELAY);
ret = get_tk_fw_version(info, true);
if (ret) {
dev_err(&client->dev, "%s fw version read fail\n", __func__);
ret = -1;
continue;
}
if (info->fw_ver == 0) {
dev_err(&client->dev, "%s fw version fail (0x%x)\n",
__func__, info->fw_ver);
ret = -1;
continue;
}
if (info->fw_ver != fw_ver) {
dev_err(&client->dev, "%s fw version fail ic:0x%x, bin:0x%x\n",
__func__, info->fw_ver, fw_ver);
ret = -1;
continue;
}
ret = 0;
break;
}
out:
abov_release_fw(info, cmd);
return ret;
}
static ssize_t touchkey_fw_update(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->client;
int ret;
u8 cmd;
switch(*buf) {
case 's':
case 'S':
cmd = BUILT_IN;
break;
case 'i':
case 'I':
cmd = SDCARD;
break;
default:
info->fw_update_state = 2;
goto touchkey_fw_update_out;
}
info->fw_update_state = 1;
disable_irq(info->irq);
info->enabled = false;
ret = abov_flash_fw(info, false, cmd);
if (ret) {
dev_err(&client->dev, "%s fail\n", __func__);
// info->fw_update_state = 2;
info->fw_update_state = 0;
} else {
dev_notice(&client->dev, "%s success\n", __func__);
info->fw_update_state = 0;
}
if (info->flip_mode)
abov_mode_enable(client, ABOV_FLIP, CMD_FLIP_ON);
#ifdef GLOVE_MODE
else if (info->glovemode)
abov_mode_enable(client, ABOV_GLOVE, CMD_GLOVE_ON);
#endif
if (info->keyboard_mode)
abov_mode_enable(client, ABOV_KEYBOARD, CMD_MOBILE_KBD_ON);
info->enabled = true;
enable_irq(info->irq);
touchkey_fw_update_out:
dev_dbg(&client->dev, "%s : %d\n", __func__, info->fw_update_state);
return count;
}
static ssize_t touchkey_fw_update_status(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->client;
int count = 0;
dev_info(&client->dev, "%s : %d\n", __func__, info->fw_update_state);
if (info->fw_update_state == 0)
count = snprintf(buf, PAGE_SIZE, "PASS\n");
else if (info->fw_update_state == 1)
count = snprintf(buf, PAGE_SIZE, "Downloading\n");
else if (info->fw_update_state == 2)
count = snprintf(buf, PAGE_SIZE, "Fail\n");
return count;
}
#ifdef GLOVE_MODE
static ssize_t abov_glove_mode(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->client;
int scan_buffer;
int ret;
u8 cmd;
ret = sscanf(buf, "%d", &scan_buffer);
if (ret != 1) {
dev_err(&client->dev, "%s: cmd read err\n", __func__);
return count;
}
if (!(scan_buffer == 0 || scan_buffer == 1)) {
dev_err(&client->dev, "%s: wrong command(%d)\n",
__func__, scan_buffer);
return count;
}
if (!info->enabled)
return count;
if (info->glovemode == scan_buffer) {
dev_err(&client->dev, "%s same command(%d)\n",
__func__, scan_buffer);
return count;
}
if (scan_buffer == 1) {
dev_notice(&client->dev, "%s glove mode\n", __func__);
cmd = CMD_GLOVE_ON;
} else {
dev_notice(&client->dev, "%s normal mode\n", __func__);
cmd = CMD_GLOVE_OFF;
}
ret = abov_mode_enable(client, ABOV_GLOVE, cmd);
if (ret < 0) {
dev_err(&client->dev, "%s fail(%d)\n", __func__, ret);
return count;
}
info->glovemode = scan_buffer;
return count;
}
static ssize_t abov_glove_mode_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", info->glovemode);
}
#endif
static ssize_t keyboard_cover_mode_enable(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->client;
int keyboard_mode_on;
int ret;
u8 cmd;
dev_dbg(&client->dev, "%s : Mobile KBD sysfs node called\n",__func__);
sscanf(buf, "%d", &keyboard_mode_on);
dev_info(&client->dev, "%s : %d\n",
__func__, keyboard_mode_on);
if (!(keyboard_mode_on == 0 || keyboard_mode_on == 1)) {
dev_err(&client->dev, "%s: wrong command(%d)\n",
__func__, keyboard_mode_on);
return count;
}
if (!info->enabled)
goto out;
if (info->keyboard_mode == keyboard_mode_on) {
dev_err(&client->dev, "%s same command(%d)\n",
__func__, keyboard_mode_on);
goto out;
}
if (keyboard_mode_on == 1) {
cmd = CMD_MOBILE_KBD_ON;
} else {
cmd = CMD_MOBILE_KBD_OFF;
}
/* mobile keyboard use same register with glove mode */
ret = abov_mode_enable(client, ABOV_KEYBOARD, cmd);
if (ret < 0) {
dev_err(&client->dev, "%s fail(%d)\n", __func__, ret);
goto out;
}
out:
info->keyboard_mode = keyboard_mode_on;
return count;
}
static ssize_t flip_cover_mode_enable(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct abov_tk_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->client;
int flip_mode_on;
int ret;
u8 cmd;
sscanf(buf, "%d\n", &flip_mode_on);
dev_info(&client->dev, "%s : %d\n", __func__, flip_mode_on);
if (!info->enabled)
goto out;
/* glove mode control */
if (flip_mode_on) {
cmd = CMD_FLIP_ON;
} else {
#ifdef GLOVE_MODE
if (info->glovemode)
cmd = CMD_GLOVE_ON;
#endif
cmd = CMD_FLIP_OFF;
}
#ifdef GLOVE_MODE
if (info->glovemode) {
ret = abov_mode_enable(client, ABOV_GLOVE, cmd);
if (ret < 0) {
dev_err(&client->dev, "%s glove mode fail(%d)\n", __func__, ret);
goto out;
}
} else
#endif
{
ret = abov_mode_enable(client, ABOV_FLIP, cmd);
if (ret < 0) {
dev_err(&client->dev, "%s flip mode fail(%d)\n", __func__, ret);
goto out;
}
}
out:
info->flip_mode = flip_mode_on;
return count;
}
static DEVICE_ATTR(touchkey_threshold, S_IRUGO, touchkey_threshold_show, NULL);
static DEVICE_ATTR(brightness, S_IRUGO | S_IWUSR | S_IWGRP, NULL,
touchkey_led_control);
static DEVICE_ATTR(touchkey_recent, S_IRUGO, touchkey_menu_show, NULL);
static DEVICE_ATTR(touchkey_back, S_IRUGO, touchkey_back_show, NULL);
static DEVICE_ATTR(touchkey_recent_raw, S_IRUGO, touchkey_menu_raw_show, NULL);
static DEVICE_ATTR(touchkey_back_raw, S_IRUGO, touchkey_back_raw_show, NULL);
static DEVICE_ATTR(touchkey_firm_version_phone, S_IRUGO, bin_fw_ver, NULL);
static DEVICE_ATTR(touchkey_firm_version_panel, S_IRUGO, read_fw_ver, NULL);
static DEVICE_ATTR(touchkey_firm_update, S_IRUGO | S_IWUSR | S_IWGRP, NULL,
touchkey_fw_update);
static DEVICE_ATTR(touchkey_firm_update_status, S_IRUGO | S_IWUSR | S_IWGRP,
touchkey_fw_update_status, NULL);
#ifdef GLOVE_MODE
static DEVICE_ATTR(glove_mode, S_IRUGO | S_IWUSR | S_IWGRP,
abov_glove_mode_show, abov_glove_mode);
#endif
static DEVICE_ATTR(keyboard_mode, S_IRUGO | S_IWUSR | S_IWGRP, NULL,
keyboard_cover_mode_enable);
static DEVICE_ATTR(flip_mode, S_IRUGO | S_IWUSR | S_IWGRP, NULL,
flip_cover_mode_enable);
#ifdef CONFIG_INPUT_BOOSTER
static DEVICE_ATTR(boost_level,
S_IWUSR | S_IWGRP, NULL, boost_level_store);
#endif
static struct attribute *sec_touchkey_attributes[] = {
&dev_attr_touchkey_threshold.attr,
&dev_attr_brightness.attr,
&dev_attr_touchkey_recent.attr,
&dev_attr_touchkey_back.attr,
&dev_attr_touchkey_recent_raw.attr,
&dev_attr_touchkey_back_raw.attr,
&dev_attr_touchkey_firm_version_phone.attr,
&dev_attr_touchkey_firm_version_panel.attr,
&dev_attr_touchkey_firm_update.attr,
&dev_attr_touchkey_firm_update_status.attr,
#ifdef GLOVE_MODE
&dev_attr_glove_mode.attr,
#endif
&dev_attr_keyboard_mode.attr,
&dev_attr_flip_mode.attr,
#ifdef CONFIG_INPUT_BOOSTER
&dev_attr_boost_level.attr,
#endif
NULL,
};
static struct attribute_group sec_touchkey_attr_group = {
.attrs = sec_touchkey_attributes,
};
static int abov_tk_fw_check(struct abov_tk_info *info)
{
struct i2c_client *client = info->client;
int ret;
bool force = false;
ret = get_tk_fw_version(info, true);
if (ret) {
dev_err(&client->dev,
"%s: i2c fail...[%d], addr[%d]\n",
__func__, ret, info->client->addr);
#ifdef LED_TWINKLE_BOOTING
/* regard I2C fail & LCD attached status as no TKEY device */
if (get_lcd_attached("GET") == 0) {
dev_err(&client->dev,
"%s : LCD is not attached\n", __func__);
return ret;
}
#endif
}
ret = abov_load_fw(info, BUILT_IN);
if (ret) {
dev_err(&client->dev,
"%s fw load fail\n", __func__);
return -1;
}
abov_release_fw(info, BUILT_IN);
#ifdef FORCE_FW_UPDATE_DIFF_MODULE
if (info->md_ver != info->md_ver_bin) {
dev_err(&client->dev,
"MD version is different.(IC %x, BN %x). Do force FW update\n",
info->md_ver, info->md_ver_bin);
force = true;
}
#endif
if (info->fw_ver < info->fw_ver_bin || info->fw_ver > 0xf0 || force == true) {
dev_err(&client->dev, "excute tk firmware update (0x%x -> 0x%x)\n",
info->fw_ver, info->fw_ver_bin);
ret = abov_flash_fw(info, true, BUILT_IN);
if (ret) {
dev_err(&client->dev,
"failed to abov_flash_fw (%d)\n", ret);
} else {
dev_err(&client->dev,
"fw update success\n");
}
}
return ret;
}
static int abov_power(struct abov_touchkey_dt_data *dtdata, bool on)
{
static bool reg_boot_on = true;
int ret = 0;
if (reg_boot_on && !dtdata->reg_boot_on)
reg_boot_on = false;
// 3.3V on,off control.
if (!IS_ERR_OR_NULL(dtdata->avdd_vreg)) {
if (on) {
/* temp block for bringup, regulator_is_enabled is not working: always returned as 0 */
/* if (!reg_boot_on && regulator_is_enabled(dtdata->avdd_vreg)) {
pr_err("[TKEY] %s: 3p3 is already enabled\n", __func__);
} else {*/
ret = regulator_enable(dtdata->avdd_vreg);
if (ret) {
pr_err("[TKEY] %s: 3p3 enable fail ret=%d\n", __func__, ret);
// return ret;
}
// }
reg_boot_on = false;
} else {
// if (regulator_is_enabled(dtdata->avdd_vreg)) {
ret = regulator_disable(dtdata->avdd_vreg);
if (ret) {
pr_err("[TKEY] %s: 3p3 disable fail ret=%d\n", __func__, ret);
// return ret;
}
/* } else {
pr_err("[TKEY] %s: 3p3 is already disabled\n", __func__);
}*/
}
}
// 1.8V on,off control.
if (!IS_ERR_OR_NULL(dtdata->vdd_io_vreg)) {
if (on)
ret = regulator_enable(dtdata->vdd_io_vreg);
else
ret = regulator_disable(dtdata->vdd_io_vreg);
if (ret)
pr_err("[TKEY] %s: iovdd reg %s fail ret=%d\n",
__func__, on ? "enable" : "disable", ret);
}
pr_info("[TKEY] %s %s", __func__, on ? "ON" : "OFF");
if (!IS_ERR_OR_NULL(dtdata->avdd_vreg))
pr_cont(", avdd is %s", regulator_is_enabled(dtdata->avdd_vreg) ? "ON" : "OFF");
if (!IS_ERR_OR_NULL(dtdata->vdd_io_vreg))
pr_cont(", vdd_io is %s", regulator_is_enabled(dtdata->vdd_io_vreg) ? "ON" : "OFF");
pr_cont("\n");
if (gpio_is_valid(dtdata->gpio_tkey_led_en)) {
gpio_direction_output(dtdata->gpio_tkey_led_en, on);
pr_info("[TKEY] %s: %s: %d\n", __func__, on ? "on" : "off",
gpio_get_value(dtdata->gpio_tkey_led_en));
}
return ret;
}
static int abov_pinctrl_configure(struct abov_tk_info *info,
bool active)
{
struct pinctrl_state *set_state;
int retval;
if (active) {
set_state =
pinctrl_lookup_state(info->pinctrl,
"touchkey_active");
if (IS_ERR(set_state)) {
dev_err(&info->client->dev,
"%s: cannot get ts pinctrl active state\n", __func__);
return PTR_ERR(set_state);
}
} else {
set_state =
pinctrl_lookup_state(info->pinctrl,
"touchkey_suspend");
if (IS_ERR(set_state)) {
dev_err(&info->client->dev,
"%s: cannot get gpiokey pinctrl sleep state\n", __func__);
return PTR_ERR(set_state);
}
}
retval = pinctrl_select_state(info->pinctrl, set_state);
if (retval) {
dev_err(&info->client->dev,
"%s: cannot set ts pinctrl active state\n", __func__);
return retval;
}
return 0;
}
static int abov_gpio_reg_init(struct device *dev,
struct abov_touchkey_dt_data *dtdata)
{
int ret = 0;
if (gpio_is_valid(dtdata->gpio_int)) {
ret = gpio_request(dtdata->gpio_int, "tkey_gpio_int");
if (ret < 0) {
dev_err(dev, "unable to request gpio_int\n");
return ret;
}
}
if (gpio_is_valid(dtdata->gpio_tkey_led_en)) {
ret = gpio_request(dtdata->gpio_tkey_led_en, "gpio_tkey_led_en");
if (ret < 0) {
dev_err(dev, "unable to request gpio_tkey_led_en. ignoring\n");
ret = 0;
}
}
if (gpio_is_valid(dtdata->sub_det)) {
ret = gpio_request(dtdata->sub_det, "gpio_tkey_sub_det");
if (ret < 0) {
dev_err(dev, "unable to request gpio_tkey_sub_det. ignoring\n");
ret = 0;
}
}
dtdata->vdd_io_vreg = regulator_get(dev, "vddo");
if (IS_ERR(dtdata->vdd_io_vreg)) {
dtdata->vdd_io_vreg = NULL;
dev_err(dev, "dtdata->vdd_io_vreg get error, ignoring\n");
} else {
regulator_set_voltage(dtdata->vdd_io_vreg, 1800000, 1800000);
}
dtdata->avdd_vreg = regulator_get(dev, "avdd");
if (IS_ERR(dtdata->avdd_vreg)) {
dev_err(dev, "dtdata->avdd_vreg get error\n");
ret = -ENODEV;
} else {
regulator_set_voltage(dtdata->avdd_vreg, 3300000, 3300000);
}
dtdata->power = abov_power;
return ret;
}
#ifdef CONFIG_OF
static int abov_parse_dt(struct device *dev,
struct abov_touchkey_dt_data *dtdata)
{
struct device_node *np = dev->of_node;
int rc;
dtdata->gpio_int = of_get_named_gpio(np, "abov,irq-gpio", 0);
if (!gpio_is_valid(dtdata->gpio_int)) {
dev_err(dev, "unable to get gpio_int\n");
return dtdata->gpio_int;
}
dtdata->gpio_scl = of_get_named_gpio(np, "abov,scl-gpio", 0);
if (!gpio_is_valid(dtdata->gpio_scl)) {
dev_err(dev, "unable to get gpio_scl\n");
return dtdata->gpio_scl;
}
dtdata->gpio_sda = of_get_named_gpio(np, "abov,sda-gpio", 0);
if (!gpio_is_valid(dtdata->gpio_sda)) {
dev_err(dev, "unable to get gpio_sda\n");
return dtdata->gpio_sda;
}
dtdata->sub_det = of_get_named_gpio(np, "abov,sub-det", 0);
if (!gpio_is_valid(dtdata->sub_det)) {
dev_info(dev, "unable to get sub_det\n");
} else {
dev_info(dev, "%s: sub_det:%d\n",__func__, dtdata->sub_det);
}
dtdata->gpio_tkey_led_en = of_get_named_gpio(np, "abov,tkey_led_en-gpio", 0);
if (!gpio_is_valid(dtdata->gpio_tkey_led_en)) {
dev_err(dev, "unable to get gpio_tkey_led_en...ignoring\n");
}
dtdata->reg_boot_on = of_property_read_bool(np, "abov,reg-boot-on");
rc = of_property_read_string(np, "abov,fw-name", &dtdata->fw_name);
if (rc < 0) {
dev_info(dev, "%s: Unable to read abov,fw_name\n", __func__);
return rc;
}
dev_info(dev, "%s: gpio_int:%d, gpio_scl:%d,"
" gpio_sda:%d, gpio_led_en:%d, reg_boot_on:%d, fw_name:%s\n",
__func__, dtdata->gpio_int, dtdata->gpio_scl,
dtdata->gpio_sda, dtdata->gpio_tkey_led_en,
dtdata->reg_boot_on, dtdata->fw_name);
return 0;
}
#else
static int abov_parse_dt(struct device *dev,
struct abov_touchkey_dt_data *dtdata)
{
return -ENODEV;
}
#endif
static int abov_tk_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct abov_tk_info *info;
struct input_dev *input_dev;
int ret = 0;
pr_err("%s++\n", __func__);
if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
dev_err(&client->dev,
"i2c_check_functionality fail\n");
return -EIO;
}
info = kzalloc(sizeof(struct abov_tk_info), GFP_KERNEL);
if (!info) {
dev_err(&client->dev, "Failed to allocate memory\n");
ret = -ENOMEM;
goto err_alloc;
}
input_dev = input_allocate_device();
if (!input_dev) {
dev_err(&client->dev,
"Failed to allocate memory for input device\n");
ret = -ENOMEM;
goto err_input_alloc;
}
info->client = client;
info->input_dev = input_dev;
info->probe_done = false;
if (client->dev.of_node) {
struct abov_touchkey_dt_data *dtdata;
dtdata = devm_kzalloc(&client->dev,
sizeof(struct abov_touchkey_dt_data), GFP_KERNEL);
if (!dtdata) {
dev_err(&client->dev, "Failed to allocate memory\n");
ret = -ENOMEM;
goto err_config;
}
ret = abov_parse_dt(&client->dev, dtdata);
if (ret)
goto err_config;
info->dtdata = dtdata;
} else
info->dtdata = client->dev.platform_data;
if (info->dtdata == NULL) {
pr_err("failed to get platform data\n");
goto err_config;
}
/* Get pinctrl if target uses pinctrl */
info->pinctrl = devm_pinctrl_get(&client->dev);
if (IS_ERR(info->pinctrl)) {
if (PTR_ERR(info->pinctrl) == -EPROBE_DEFER)
goto err_config;
pr_err("%s: Target does not use pinctrl\n", __func__);
info->pinctrl = NULL;
}
if (info->pinctrl) {
ret = abov_pinctrl_configure(info, true);
if (ret)
pr_err("%s: cannot set ts pinctrl active state\n", __func__);
}
ret = abov_gpio_reg_init(&client->dev, info->dtdata);
if (ret) {
dev_err(&client->dev, "failed to init reg\n");
goto pwr_config;
}
if (info->dtdata->power)
info->dtdata->power(info->dtdata, true);
if (!info->dtdata->reg_boot_on)
msleep(ABOV_RESET_DELAY);
if (gpio_is_valid(info->dtdata->sub_det)) {
ret = gpio_get_value(info->dtdata->sub_det);
if (ret) {
dev_err(&client->dev, "Device wasn't connected to board\n");
#ifdef CONFIG_SEC_FACTORY
ret = -ENODEV;
goto err_i2c_check;
#endif
}
}
info->enabled = true;
info->irq = -1;
client->irq = gpio_to_irq(info->dtdata->gpio_int);
mutex_init(&info->lock);
mutex_init(&info->device);
info->touchkey_count = sizeof(touchkey_keycode) / sizeof(int);
i2c_set_clientdata(client, info);
ret = abov_tk_fw_check(info);
if (ret) {
dev_err(&client->dev,
"failed to firmware check (%d)\n", ret);
goto err_reg_input_dev;
}
snprintf(info->phys, sizeof(info->phys),
"%s/input0", dev_name(&client->dev));
input_dev->name = "sec_touchkey";
input_dev->phys = info->phys;
input_dev->id.bustype = BUS_HOST;
input_dev->dev.parent = &client->dev;
input_dev->open = abov_tk_input_open;
input_dev->close = abov_tk_input_close;
set_bit(EV_KEY, input_dev->evbit);
set_bit(KEY_RECENT, input_dev->keybit);
set_bit(KEY_BACK, input_dev->keybit);
set_bit(EV_LED, input_dev->evbit);
set_bit(LED_MISC, input_dev->ledbit);
input_set_drvdata(input_dev, info);
INIT_DELAYED_WORK(&info->resume_work, abov_tk_resume_work);
ret = input_register_device(input_dev);
if (ret) {
dev_err(&client->dev, "failed to register input dev (%d)\n",
ret);
goto err_reg_input_dev;
}
#ifdef CONFIG_INPUT_BOOSTER
info->tkey_booster = input_booster_allocate(INPUT_BOOSTER_ID_TKEY);
if (!info->tkey_booster) {
dev_err(&client->dev,
"%s [ERROR] failed to allocate input booster\n", __func__);
goto err_alloc_booster_failed;
}
#endif
if (!info->dtdata->irq_flag) {
dev_err(&client->dev, "no irq_flag\n");
ret = request_threaded_irq(client->irq, NULL, abov_tk_interrupt,
IRQF_TRIGGER_LOW | IRQF_ONESHOT, ABOV_TK_NAME, info);
} else {
ret = request_threaded_irq(client->irq, NULL, abov_tk_interrupt,
info->dtdata->irq_flag, ABOV_TK_NAME, info);
}
if (ret < 0) {
dev_err(&client->dev, "Failed to register interrupt\n");
goto err_req_irq;
}
info->irq = client->irq;
sec_touchkey = device_create(sec_class,
NULL, 0, info, "sec_touchkey");
if (IS_ERR(sec_touchkey))
dev_err(&client->dev,
"Failed to create device for the touchkey sysfs\n");
ret = sysfs_create_group(&sec_touchkey->kobj,
&sec_touchkey_attr_group);
if (ret)
dev_err(&client->dev, "Failed to create sysfs group\n");
ret = sysfs_create_link(&sec_touchkey->kobj,
&info->input_dev->dev.kobj, "input");
if (ret < 0) {
dev_err(&info->client->dev,
"%s: Failed to create input symbolic link\n",
__func__);
}
#ifdef LED_TWINKLE_BOOTING
if (get_lcd_attached("GET") == 0) {
dev_err(&client->dev,
"%s : LCD is not connected. so start LED twinkle \n", __func__);
INIT_DELAYED_WORK(&info->led_twinkle_work, led_twinkle_work);
info->led_twinkle_check = 1;
schedule_delayed_work(&info->led_twinkle_work, msecs_to_jiffies(400));
}
#endif
dev_err(&client->dev, "%s done\n", __func__);
info->probe_done = true;
return 0;
err_req_irq:
#ifdef CONFIG_INPUT_BOOSTER
input_booster_free(info->tkey_booster);
info->tkey_booster = NULL;
err_alloc_booster_failed:
#endif
input_unregister_device(input_dev);
err_reg_input_dev:
mutex_destroy(&info->lock);
mutex_destroy(&info->device);
#ifdef CONFIG_SEC_FACTORY
err_i2c_check:
#endif
if (info->dtdata->power)
info->dtdata->power(info->dtdata, false);
pwr_config:
err_config:
input_free_device(input_dev);
err_input_alloc:
kfree(info);
err_alloc:
if (ret >= 0)
ret = -EIO;
pr_err("%s is failed, ret=%d\n", __func__, ret);
return ret;
}
#ifdef LED_TWINKLE_BOOTING
static void led_twinkle_work(struct work_struct *work)
{
struct abov_tk_info *info = container_of(work, struct abov_tk_info,
led_twinkle_work.work);
static bool led_on = 1;
static int count;
dev_err(&info->client->dev, "%s, on=%d, c=%d\n",__func__, led_on, count++ );
if (info->led_twinkle_check == 1) {
touchkey_led_set(info, led_on);
if (led_on)
led_on = 0;
else
led_on = 1;
schedule_delayed_work(&info->led_twinkle_work, msecs_to_jiffies(400));
} else {
if (led_on == 0)
touchkey_led_set(info, 0);
}
}
#endif
static void abov_tk_resume_work(struct work_struct *work)
{
struct abov_tk_info *info = container_of(work, struct abov_tk_info,
resume_work.work);
dev_info(&info->client->dev, "%s\n",__func__);
abov_tk_resume(&info->client->dev);
}
static int abov_tk_remove(struct i2c_client *client)
{
struct abov_tk_info *info = i2c_get_clientdata(client);
if (info->enabled)
info->dtdata->power(info->dtdata, false);
info->enabled = false;
if (info->irq >= 0)
free_irq(info->irq, info);
input_unregister_device(info->input_dev);
input_free_device(info->input_dev);
#ifdef CONFIG_INPUT_BOOSTER
input_booster_free(info->tkey_booster);
info->tkey_booster = NULL;
#endif
kfree(info);
return 0;
}
static void abov_tk_shutdown(struct i2c_client *client)
{
struct abov_tk_info *info = i2c_get_clientdata(client);
u8 cmd = CMD_LED_OFF;
dev_info(&info->client->dev, "%s\n",__func__);
cancel_delayed_work(&info->resume_work);
if (info->enabled) {
disable_irq(info->irq);
abov_tk_i2c_write(client, ABOV_BTNSTATUS, &cmd, 1);
info->enabled = false;
if (info->dtdata->power)
info->dtdata->power(info->dtdata, false);
}
}
static int abov_tk_suspend(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct abov_tk_info *info = i2c_get_clientdata(client);
if (!info->enabled) {
dev_err(&info->client->dev, "%s: already power off\n", __func__);
return 0;
}
dev_info(&info->client->dev, "%s: users=%d\n", __func__,
info->input_dev->users);
mutex_lock(&info->device);
disable_irq(info->irq);
info->enabled = false;
release_all_fingers(info);
if (info->dtdata->power)
info->dtdata->power(info->dtdata, false);
if (info->pinctrl)
abov_pinctrl_configure(info, false);
mutex_unlock(&info->device);
return 0;
}
static int abov_tk_resume(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct abov_tk_info *info = i2c_get_clientdata(client);
u8 led_data;
if (!info->probe_done)
return 0;
if (info->enabled) {
dev_err(&info->client->dev, "%s: already power on\n", __func__);
return 0;
}
dev_info(&info->client->dev, "%s: users=%d\n", __func__,
info->input_dev->users);
mutex_lock(&info->device);
if (info->pinctrl)
abov_pinctrl_configure(info, true);
if (info->dtdata->power) {
info->dtdata->power(info->dtdata, true);
msleep(ABOV_RESET_DELAY);
} else
get_tk_fw_version(info, true);
info->enabled = true;
if (info->flip_mode)
abov_mode_enable(info->client, ABOV_FLIP, CMD_FLIP_ON);
#ifdef GLOVE_MODE
else if (info->glovemode)
abov_mode_enable(client, ABOV_GLOVE, CMD_GLOVE_ON);
#endif
if (info->keyboard_mode)
abov_mode_enable(info->client, ABOV_KEYBOARD, CMD_MOBILE_KBD_ON);
if (abov_touchled_cmd_reserved && abov_touchkey_led_status == CMD_LED_ON) {
abov_touchled_cmd_reserved = 0;
led_data = abov_touchkey_led_status;
abov_tk_i2c_write(client, ABOV_BTNSTATUS, &led_data, 1);
dev_info(&info->client->dev, "%s: LED reserved %s\n",
__func__, (led_data == CMD_LED_ON) ? "on" : "off");
}
enable_irq(info->irq);
mutex_unlock(&info->device);
return 0;
}
static int abov_tk_input_open(struct input_dev *dev)
{
struct abov_tk_info *info = input_get_drvdata(dev);
// gpio_direction_input(info->dtdata->gpio_scl);
// gpio_direction_input(info->dtdata->gpio_sda);
schedule_delayed_work(&info->resume_work, msecs_to_jiffies(1));
// abov_tk_resume(&info->client->dev);
return 0;
}
static void abov_tk_input_close(struct input_dev *dev)
{
struct abov_tk_info *info = input_get_drvdata(dev);
#ifdef LED_TWINKLE_BOOTING
info->led_twinkle_check = 0;
#endif
cancel_delayed_work(&info->resume_work);
abov_tk_suspend(&info->client->dev);
// gpio_set_value(info->dtdata->gpio_scl, 1);
// gpio_set_value(info->dtdata->gpio_sda, 1);
}
static const struct i2c_device_id abov_tk_id[] = {
{ABOV_TK_NAME, 0},
{}
};
MODULE_DEVICE_TABLE(i2c, abov_tk_id);
#ifdef CONFIG_OF
static struct of_device_id abov_match_table[] = {
{ .compatible = "abov,mc96ft16xx",},
{ },
};
#else
#define abov_match_table NULL
#endif
static struct i2c_driver abov_tk_driver = {
.probe = abov_tk_probe,
.remove = abov_tk_remove,
.shutdown = abov_tk_shutdown,
.driver = {
.name = ABOV_TK_NAME,
.of_match_table = abov_match_table,
},
.id_table = abov_tk_id,
};
static int __init touchkey_init(void)
{
pr_err("%s: abov,mc96ft16xx\n", __func__);
#if defined(CONFIG_SAMSUNG_LPM_MODE)
if (poweroff_charging) {
pr_notice("%s : LPM Charging Mode!!\n", __func__);
return 0;
}
#endif
return i2c_add_driver(&abov_tk_driver);
}
static void __exit touchkey_exit(void)
{
i2c_del_driver(&abov_tk_driver);
}
module_init(touchkey_init);
module_exit(touchkey_exit);
/* Module information */
MODULE_AUTHOR("Samsung Electronics");
MODULE_DESCRIPTION("Touchkey driver for Abov MF16xx chip");
MODULE_LICENSE("GPL");
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