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android_kernel_samsung_on5x.../drivers/muic/s2mu005-muic.c
awab228 f6dfaef42e Fixed MTP to work with TWRP
2018-06-19 23:16:04 +02:00

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/*
* driver/misc/s2mu005.c - S2MU005 micro USB switch device driver
*
* Copyright (C) 2015 Samsung Electronics
*
* 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 of the License, 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/wakelock.h>
#include <linux/muic/muic.h>
#include <linux/mfd/samsung/s2mu005.h>
#include <linux/mfd/samsung/s2mu005-private.h>
#include <linux/muic/s2mu005-muic.h>
#if defined(CONFIG_MUIC_NOTIFIER)
#include <linux/muic/muic_notifier.h>
#endif /* CONFIG_MUIC_NOTIFIER */
#if defined(CONFIG_VBUS_NOTIFIER)
#include <linux/vbus_notifier.h>
#endif /* CONFIG_VBUS_NOTIFIER */
#if defined(CONFIG_MUIC_UART_SWITCH)
#include <mach/pinctrl-samsung.h>
#endif
#define GPIO_LEVEL_HIGH 1
#define GPIO_LEVEL_LOW 0
static void s2mu005_muic_handle_attach(struct s2mu005_muic_data *muic_data,
muic_attached_dev_t new_dev, int adc, u8 vbvolt);
static void s2mu005_muic_handle_detach(struct s2mu005_muic_data *muic_data);
/*
#define DEBUG_MUIC
*/
#if defined(DEBUG_MUIC)
#define MAX_LOG 25
#define READ 0
#define WRITE 1
static u8 s2mu005_log_cnt;
static u8 s2mu005_log[MAX_LOG][3];
static int s2mu005_i2c_read_byte(struct i2c_client *client, u8 command);
static int s2mu005_i2c_write_byte(struct i2c_client *client,
u8 command, u8 value);
static void s2mu005_reg_log(u8 reg, u8 value, u8 rw)
{
s2mu005_log[s2mu005_log_cnt][0] = reg;
s2mu005_log[s2mu005_log_cnt][1] = value;
s2mu005_log[s2mu005_log_cnt][2] = rw;
s2mu005_log_cnt++;
if (s2mu005_log_cnt >= MAX_LOG)
s2mu005_log_cnt = 0;
}
static void s2mu005_print_reg_log(void)
{
int i;
u8 reg, value, rw;
char mesg[256] = "";
for (i = 0; i < MAX_LOG; i++) {
reg = s2mu005_log[s2mu005_log_cnt][0];
value = s2mu005_log[s2mu005_log_cnt][1];
rw = s2mu005_log[s2mu005_log_cnt][2];
s2mu005_log_cnt++;
if (s2mu005_log_cnt >= MAX_LOG)
s2mu005_log_cnt = 0;
sprintf(mesg+strlen(mesg), "%x(%x)%x ", reg, value, rw);
}
pr_info("%s:%s\n", __func__, mesg);
}
void s2mu005_read_reg_dump(struct s2mu005_muic_data *muic, char *mesg)
{
u8 val;
s2mu005_read_reg(muic->i2c, S2MU005_REG_MUIC_CTRL1, &val);
sprintf(mesg+strlen(mesg), "CTRL1:%x ", val);
s2mu005_read_reg(muic->i2c, S2MU005_REG_MUIC_SW_CTRL, &val);
sprintf(mesg+strlen(mesg), "SW_CTRL:%x ", val);
s2mu005_read_reg(muic->i2c, S2MU005_REG_MUIC_INT1_MASK, &val);
sprintf(mesg+strlen(mesg), "IM1:%x ", val);
s2mu005_read_reg(muic->i2c, S2MU005_REG_MUIC_INT2_MASK, &val);
sprintf(mesg+strlen(mesg), "IM2:%x ", val);
s2mu005_read_reg(muic->i2c, S2MU005_REG_MUIC_CHG_TYPE, &val);
sprintf(mesg+strlen(mesg), "CHG_T:%x ", val);
s2mu005_read_reg(muic->i2c, S2MU005_REG_MUIC_DEVICE_APPLE, &val);
sprintf(mesg+strlen(mesg), "APPLE_DT:%x ", val);
s2mu005_read_reg(muic->i2c, S2MU005_REG_MUIC_ADC, &val);
sprintf(mesg+strlen(mesg), "ADC:%x ", val);
s2mu005_read_reg(muic->i2c, S2MU005_REG_MUIC_DEVICE_TYPE1, &val);
sprintf(mesg+strlen(mesg), "DT1:%x ", val);
s2mu005_read_reg(muic->i2c, S2MU005_REG_MUIC_DEVICE_TYPE2, &val);
sprintf(mesg+strlen(mesg), "DT2:%x ", val);
s2mu005_read_reg(muic->i2c, S2MU005_REG_MUIC_DEVICE_TYPE3, &val);
sprintf(mesg+strlen(mesg), "DT3:%x ", val);
}
void s2mu005_print_reg_dump(struct s2mu005_muic_data *muic_data)
{
char mesg[256] = "";
s2mu005_read_reg_dump(muic_data, mesg);
pr_info("%s:%s\n", __func__, mesg);
}
#endif
static int s2mu005_i2c_read_byte(struct i2c_client *client, u8 command)
{
u8 ret;
int retry = 0;
s2mu005_read_reg(client, command, &ret);
while (ret < 0) {
pr_err("[muic] %s: reg(0x%x), retrying...\n",
__func__, command);
if (retry > 10) {
pr_err("[muic] %s: retry failed!!\n", __func__);
break;
}
msleep(100);
s2mu005_read_reg(client, command, &ret);
retry++;
}
#ifdef DEBUG_MUIC
s2mu005_reg_log(command, ret, retry << 1 | READ);
#endif
return ret;
}
static int s2mu005_i2c_write_byte(struct i2c_client *client,
u8 command, u8 value)
{
int ret;
int retry = 0;
u8 written = 0;
ret = s2mu005_write_reg(client, command, value);
while (ret < 0) {
pr_err("[muic] %s: reg(0x%x), retrying...\n",
__func__, command);
s2mu005_read_reg(client, command, &written);
if (written < 0)
pr_err("[muic] %s: reg(0x%x)\n",
__func__, command);
msleep(100);
ret = s2mu005_write_reg(client, command, value);
retry++;
}
#ifdef DEBUG_MUIC
s2mu005_reg_log(command, value, retry << 1 | WRITE);
#endif
return ret;
}
static int s2mu005_i2c_guaranteed_wbyte(struct i2c_client *client,
u8 command, u8 value)
{
int ret;
int retry = 0;
int written;
ret = s2mu005_i2c_write_byte(client, command, value);
written = s2mu005_i2c_read_byte(client, command);
while (written != value) {
pr_err("[muic] reg(0x%x): written(0x%x) != value(0x%x)\n",
command, written, value);
if (retry > 10) {
pr_err("[muic] %s: retry failed!!\n", __func__);
break;
}
msleep(100);
retry++;
ret = s2mu005_i2c_write_byte(client, command, value);
written = s2mu005_i2c_read_byte(client, command);
}
return ret;
}
#if defined(GPIO_USB_SEL)
static int s2mu005_set_gpio_usb_sel(int uart_sel)
{
return 0;
}
#endif /* GPIO_USB_SEL */
static int s2mu005_set_gpio_uart_sel(int uart_sel)
{
const char *mode;
#if !defined(CONFIG_MUIC_UART_SWITCH)
int uart_sel_gpio = muic_pdata.gpio_uart_sel;
int uart_sel_val;
int ret;
ret = gpio_request(uart_sel_gpio, "GPIO_UART_SEL");
if (ret) {
pr_err("[muic] failed to gpio_request GPIO_UART_SEL\n");
return ret;
}
uart_sel_val = gpio_get_value(uart_sel_gpio);
switch (uart_sel) {
case MUIC_PATH_UART_AP:
mode = "AP_UART";
if (gpio_is_valid(uart_sel_gpio))
gpio_direction_output(uart_sel_gpio, 1);
break;
case MUIC_PATH_UART_CP:
mode = "CP_UART";
if (gpio_is_valid(uart_sel_gpio))
gpio_direction_output(uart_sel_gpio, 0);
break;
default:
mode = "Error";
break;
}
uart_sel_val = gpio_get_value(uart_sel_gpio);
gpio_free(uart_sel_gpio);
pr_err("[muic] %s, GPIO_UART_SEL(%d)=%c\n",
mode, uart_sel_gpio, (uart_sel_val == 0 ? 'L' : 'H'));
#else
switch (uart_sel) {
case MUIC_PATH_UART_AP:
mode = "AP_UART";
pin_config_set(muic_pdata.uart_addr, muic_pdata.uart_rxd,
PINCFG_PACK(PINCFG_TYPE_FUNC, 0x2));
pin_config_set(muic_pdata.uart_addr, muic_pdata.uart_txd,
PINCFG_PACK(PINCFG_TYPE_FUNC, 0x2));
break;
case MUIC_PATH_UART_CP:
mode = "CP_UART";
pin_config_set(muic_pdata.uart_addr, muic_pdata.uart_rxd,
PINCFG_PACK(PINCFG_TYPE_FUNC, 0x3));
pin_config_set(muic_pdata.uart_addr, muic_pdata.uart_txd,
PINCFG_PACK(PINCFG_TYPE_FUNC, 0x3));
break;
default:
mode = "Error";
break;
}
printk(KERN_DEBUG "[muic] %s %s\n", __func__, mode);
#endif
return 0;
}
#if defined(GPIO_DOC_SWITCH)
static int s2mu005_set_gpio_doc_switch(int val)
{
int doc_switch_gpio = muic_pdata.gpio_doc_switch;
int doc_switch_val;
int ret;
ret = gpio_request(doc_switch_gpio, "GPIO_DOC_SWITCH");
if (ret) {
pr_err("[muic] failed to gpio_request GPIO_DOC_SWITCH\n");
return ret;
}
doc_switch_val = gpio_get_value(doc_switch_gpio);
if (gpio_is_valid(doc_switch_gpio))
gpio_set_value(doc_switch_gpio, val);
doc_switch_val = gpio_get_value(doc_switch_gpio);
gpio_free(doc_switch_gpio);
pr_err("[muic] GPIO_DOC_SWITCH(%d)=%c\n",
doc_switch_gpio, (doc_switch_val == 0 ? 'L' : 'H'));
return 0;
}
#endif /* GPIO_DOC_SWITCH */
#ifdef CONFIG_SEC_FACTORY
static int set_otg_reg(struct s2mu005_muic_data *muic_data, bool on)
{
struct i2c_client *i2c = muic_data->i2c;
u8 reg_val;
int ret = 0;
/* 0x1e : hidden register */
ret = s2mu005_i2c_read_byte(i2c, 0x1e);
if (ret < 0)
pr_err("[muic] %s err read 0x1e reg(%d)\n", __func__, ret);
/* Set 0x1e[5:4] bit to 0x11 or 0x01 */
if (on)
reg_val = ret | (0x1 << 5);
else
reg_val = ret & ~(0x1 << 5);
if (reg_val ^ ret) {
pr_err("[muic] %s 0x%x != 0x%x, update\n", __func__, reg_val, ret);
ret = s2mu005_i2c_guaranteed_wbyte(i2c, 0x1e, reg_val);
if (ret < 0)
pr_err("[muic] %s err write(%d)\n", __func__, ret);
} else {
pr_err("[muic] %s 0x%x == 0x%x, just return\n", __func__, reg_val, ret);
return 0;
}
ret = s2mu005_i2c_read_byte(i2c, 0x1e);
if (ret < 0)
pr_err("[muic] %s err read reg 0x1e(%d)\n", __func__, ret);
else
pr_err("[muic] %s after change(0x%x)\n", __func__, ret);
return ret;
}
static int init_otg_reg(struct s2mu005_muic_data *muic_data)
{
struct i2c_client *i2c = muic_data->i2c;
u8 reg_val;
int ret = 0;
/* 0x73 : check EVT0 or EVT1 */
ret = s2mu005_i2c_read_byte(i2c, 0x73);
if (ret < 0)
pr_err("[muic] %s err read 'reg 0x73'(%d)\n", __func__, ret);
if ((ret&0xF) > 0)
return 0;
/* 0x89 : hidden register */
ret = s2mu005_i2c_read_byte(i2c, 0x89);
if (ret < 0)
pr_err("[muic] %s err read 'reg 0x89'(%d)\n", __func__, ret);
/* Set 0x89[1] bit : T_DET_VAL */
reg_val = ret | (0x1 << 1);
if (reg_val ^ ret) {
pr_err("[muic] %s 0x%x != 0x%x, update\n", __func__, reg_val, ret);
ret = s2mu005_i2c_guaranteed_wbyte(i2c, 0x89, reg_val);
if (ret < 0)
pr_err("[muic] %s err write(%d)\n", __func__, ret);
} else {
pr_err("[muic] %s 0x%x == 0x%x, just return\n", __func__, reg_val, ret);
return 0;
}
ret = s2mu005_i2c_read_byte(i2c, 0x89);
if (ret < 0)
pr_err("[muic] %s err read 'reg 0x89'(%d)\n", __func__, ret);
else
pr_err("[muic] %s after change(0x%x)\n", __func__, ret);
/* 0x92 : hidden register */
ret = s2mu005_i2c_read_byte(i2c, 0x92);
if (ret < 0)
pr_err("[muic] %s err read 'reg 0x92'(%d)\n", __func__, ret);
/* Set 0x92[7] bit : EN_JIG_AP */
reg_val = ret | (0x1 << 7);
if (reg_val ^ ret) {
pr_err("[muic] %s 0x%x != 0x%x, update\n", __func__, reg_val, ret);
ret = s2mu005_i2c_guaranteed_wbyte(i2c, 0x92, reg_val);
if (ret < 0)
pr_err("[muic] %s err write(%d)\n", __func__, ret);
} else {
pr_err("[muic] %s 0x%x == 0x%x, just return\n", __func__, reg_val, ret);
return 0;
}
ret = s2mu005_i2c_read_byte(i2c, 0x92);
if (ret < 0)
pr_err("[muic] %s err read 'reg 0x92'(%d)\n", __func__, ret);
else
pr_err("[muic] %s after change(0x%x)\n", __func__, ret);
return ret;
}
#endif
static int s2mu005_muic_jig_on(struct s2mu005_muic_data *muic_data)
{
bool en = muic_data->is_jig_on;
int reg = 0;
pr_err("[muic] %s: %s\n", __func__, en ? "on" : "off");
reg = s2mu005_i2c_read_byte(muic_data->i2c,
S2MU005_REG_MUIC_SW_CTRL);
if (en)
reg |= MANUAL_SW_JIG_EN;
else
reg &= ~(MANUAL_SW_JIG_EN);
return s2mu005_i2c_write_byte(muic_data->i2c,
S2MU005_REG_MUIC_SW_CTRL, (u8)reg);
}
static ssize_t s2mu005_muic_show_uart_en(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
int ret = 0;
if (!muic_data->is_rustproof) {
pr_err("[muic] %s UART ENABLE\n", __func__);
ret = sprintf(buf, "1\n");
} else {
pr_err("[muic] %s UART DISABLE\n", __func__);
ret = sprintf(buf, "0\n");
}
return ret;
}
static ssize_t s2mu005_muic_set_uart_en(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
if (!strncmp(buf, "1", 1))
muic_data->is_rustproof = false;
else if (!strncmp(buf, "0", 1))
muic_data->is_rustproof = true;
else
pr_err("[muic] %s invalid value\n", __func__);
pr_err("[muic] %s uart_en(%d)\n",
__func__, !muic_data->is_rustproof);
return count;
}
static ssize_t s2mu005_muic_show_uart_sel(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
struct muic_platform_data *pdata = muic_data->pdata;
int ret = 0;
switch (pdata->uart_path) {
case MUIC_PATH_UART_AP:
pr_err("[muic] %s AP\n", __func__);
ret = sprintf(buf, "AP\n");
break;
case MUIC_PATH_UART_CP:
pr_err("[muic] %s CP\n", __func__);
ret = sprintf(buf, "CP\n");
break;
default:
pr_err("[muic] %s UNKNOWN\n", __func__);
ret = sprintf(buf, "UNKNOWN\n");
break;
}
return ret;
}
static int switch_to_ap_uart(struct s2mu005_muic_data *muic_data);
static int switch_to_cp_uart(struct s2mu005_muic_data *muic_data);
static ssize_t s2mu005_muic_set_uart_sel(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
struct muic_platform_data *pdata = muic_data->pdata;
if (!strncasecmp(buf, "AP", 2)) {
pdata->uart_path = MUIC_PATH_UART_AP;
switch_to_ap_uart(muic_data);
} else if (!strncasecmp(buf, "CP", 2)) {
pdata->uart_path = MUIC_PATH_UART_CP;
switch_to_cp_uart(muic_data);
} else
pr_err("[muic] %s invalid value\n", __func__);
pr_err("[muic] %s uart_path(%d)\n",
__func__, pdata->uart_path);
return count;
}
static ssize_t s2mu005_muic_show_usb_sel(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
struct muic_platform_data *pdata = muic_data->pdata;
switch (pdata->usb_path) {
case MUIC_PATH_USB_AP:
return sprintf(buf, "PDA\n");
case MUIC_PATH_USB_CP:
return sprintf(buf, "MODEM\n");
default:
break;
}
pr_err("[muic] %s UNKNOWN\n", __func__);
return sprintf(buf, "UNKNOWN\n");
}
static ssize_t s2mu005_muic_set_usb_sel(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
struct muic_platform_data *pdata = muic_data->pdata;
if (!strncasecmp(buf, "PDA", 3))
pdata->usb_path = MUIC_PATH_USB_AP;
else if (!strncasecmp(buf, "MODEM", 5))
pdata->usb_path = MUIC_PATH_USB_CP;
else
pr_err("[muic] %s invalid value\n", __func__);
pr_err("[muic] %s usb_path(%d)\n",
__func__, pdata->usb_path);
return count;
}
static ssize_t s2mu005_muic_show_usb_en(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
return sprintf(buf, "%s:%s attached_dev = %d\n",
MUIC_DEV_NAME, __func__, muic_data->attached_dev);
}
static ssize_t s2mu005_muic_set_usb_en(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
muic_attached_dev_t new_dev = ATTACHED_DEV_USB_MUIC;
if (!strncasecmp(buf, "1", 1))
s2mu005_muic_handle_attach(muic_data, new_dev, 0, 0);
else if (!strncasecmp(buf, "0", 1))
s2mu005_muic_handle_detach(muic_data);
else
pr_err("[muic] %s invalid value\n", __func__);
pr_err("[muic] %s attached_dev(%d)\n",
__func__, muic_data->attached_dev);
return count;
}
static ssize_t s2mu005_muic_show_adc(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
int ret;
mutex_lock(&muic_data->muic_mutex);
ret = s2mu005_i2c_read_byte(muic_data->i2c, S2MU005_REG_MUIC_ADC);
mutex_unlock(&muic_data->muic_mutex);
if (ret < 0) {
pr_err("[muic] %s err read adc reg(%d)\n",
__func__, ret);
return sprintf(buf, "UNKNOWN\n");
}
return sprintf(buf, "%x\n", (ret & ADC_MASK));
}
static ssize_t s2mu005_muic_show_usb_state(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
static unsigned long swtich_slot_time;
if (printk_timed_ratelimit(&swtich_slot_time, 5000))
pr_err("[muic] %s muic_data->attached_dev(%d)\n",
__func__, muic_data->attached_dev);
switch (muic_data->attached_dev) {
case ATTACHED_DEV_USB_MUIC:
case ATTACHED_DEV_CDP_MUIC:
case ATTACHED_DEV_JIG_USB_OFF_MUIC:
case ATTACHED_DEV_JIG_USB_ON_MUIC:
return sprintf(buf, "USB_STATE_CONFIGURED\n");
default:
break;
}
return 0;
}
#ifdef DEBUG_MUIC
static ssize_t s2mu005_muic_show_mansw(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
int ret;
mutex_lock(&muic_data->muic_mutex);
ret = s2mu005_i2c_read_byte(muic_data->i2c, S2MU005_REG_MUIC_SW_CTRL);
mutex_unlock(&muic_data->muic_mutex);
pr_info("func:%s ret:%d buf%s\n", __func__, ret, buf);
if (ret < 0) {
pr_err("%s: fail to read muic reg\n", __func__);
return sprintf(buf, "UNKNOWN\n");
}
return sprintf(buf, "0x%x\n", ret);
}
static ssize_t s2mu005_muic_show_interrupt_status(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
int st1, st2;
mutex_lock(&muic_data->muic_mutex);
st1 = s2mu005_i2c_read_byte(muic_data->i2c, S2MU005_REG_MUIC_INT1);
st2 = s2mu005_i2c_read_byte(muic_data->i2c, S2MU005_REG_MUIC_INT2);
mutex_unlock(&muic_data->muic_mutex);
pr_info("func:%s st1:0x%x st2:0x%x buf%s\n", __func__, st1, st2, buf);
if (st1 < 0 || st2 < 0) {
pr_err("%s: fail to read muic reg\n", __func__);
return sprintf(buf, "UNKNOWN\n");
}
return sprintf(buf, "st1:0x%x st2:0x%x\n", st1, st2);
}
static ssize_t s2mu005_muic_show_registers(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
char mesg[256] = "";
mutex_lock(&muic_data->muic_mutex);
s2mu005_read_reg_dump(muic_data, mesg);
mutex_unlock(&muic_data->muic_mutex);
pr_info("%s:%s\n", __func__, mesg);
return sprintf(buf, "%s\n", mesg);
}
#endif
#if defined(CONFIG_USB_HOST_NOTIFY)
static ssize_t s2mu005_muic_show_otg_test(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
int ret;
u8 val = 0;
mutex_lock(&muic_data->muic_mutex);
ret = s2mu005_i2c_read_byte(muic_data->i2c,
S2MU005_REG_MUIC_INT2_MASK);
mutex_unlock(&muic_data->muic_mutex);
if (ret < 0) {
pr_err("[muic] %s: fail to read muic reg\n", __func__);
return sprintf(buf, "UNKNOWN\n");
}
pr_err("[muic] func:%s ret:%d val:%x buf%s\n",
__func__, ret, val, buf);
val &= INT_VBUS_ON_MASK;
return sprintf(buf, "%x\n", val);
}
static ssize_t s2mu005_muic_set_otg_test(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
pr_err("[muic] %s buf:%s\n", __func__, buf);
/*
* The otg_test is set 0 durring the otg test. Not 1 !!!
*/
if (!strncmp(buf, "0", 1)) {
muic_data->is_otg_test = 1;
#ifdef CONFIG_SEC_FACTORY
set_otg_reg(muic_data, 1);
#endif
} else if (!strncmp(buf, "1", 1)) {
muic_data->is_otg_test = 0;
#ifdef CONFIG_SEC_FACTORY
set_otg_reg(muic_data, 0);
#endif
} else {
pr_err("[muic] %s Wrong command\n", __func__);
return count;
}
return count;
}
#endif
static ssize_t s2mu005_muic_show_attached_dev(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
pr_err("[muic] %s :%d\n",
__func__, muic_data->attached_dev);
switch (muic_data->attached_dev) {
case ATTACHED_DEV_NONE_MUIC:
return sprintf(buf, "No VPS\n");
case ATTACHED_DEV_USB_MUIC:
return sprintf(buf, "USB\n");
case ATTACHED_DEV_CDP_MUIC:
return sprintf(buf, "CDP\n");
case ATTACHED_DEV_OTG_MUIC:
return sprintf(buf, "OTG\n");
case ATTACHED_DEV_TA_MUIC:
return sprintf(buf, "TA\n");
case ATTACHED_DEV_JIG_UART_OFF_MUIC:
return sprintf(buf, "JIG UART OFF\n");
case ATTACHED_DEV_JIG_UART_OFF_VB_MUIC:
return sprintf(buf, "JIG UART OFF/VB\n");
case ATTACHED_DEV_JIG_UART_ON_MUIC:
return sprintf(buf, "JIG UART ON\n");
case ATTACHED_DEV_JIG_USB_OFF_MUIC:
return sprintf(buf, "JIG USB OFF\n");
case ATTACHED_DEV_JIG_USB_ON_MUIC:
return sprintf(buf, "JIG USB ON\n");
case ATTACHED_DEV_DESKDOCK_MUIC:
return sprintf(buf, "DESKDOCK\n");
case ATTACHED_DEV_AUDIODOCK_MUIC:
return sprintf(buf, "AUDIODOCK\n");
default:
break;
}
return sprintf(buf, "UNKNOWN\n");
}
static ssize_t s2mu005_muic_show_audio_path(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return 0;
}
static ssize_t s2mu005_muic_set_audio_path(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
return 0;
}
static ssize_t s2mu005_muic_show_apo_factory(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
const char *mode;
/* true: Factory mode, false: not Factory mode */
if (muic_data->is_factory_start)
mode = "FACTORY_MODE";
else
mode = "NOT_FACTORY_MODE";
pr_err("[muic] %s : %s\n",
__func__, mode);
return sprintf(buf, "%s\n", mode);
}
static ssize_t s2mu005_muic_set_apo_factory(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
const char *mode;
pr_err("[muic] %s buf:%s\n",
__func__, buf);
/* "FACTORY_START": factory mode */
if (!strncmp(buf, "FACTORY_START", 13)) {
muic_data->is_factory_start = true;
mode = "FACTORY_MODE";
} else {
pr_err("[muic] %s Wrong command\n", __func__);
return count;
}
return count;
}
static DEVICE_ATTR(uart_en, 0664, s2mu005_muic_show_uart_en,
s2mu005_muic_set_uart_en);
static DEVICE_ATTR(uart_sel, 0664, s2mu005_muic_show_uart_sel,
s2mu005_muic_set_uart_sel);
static DEVICE_ATTR(usb_sel, 0664,
s2mu005_muic_show_usb_sel, s2mu005_muic_set_usb_sel);
static DEVICE_ATTR(adc, 0664, s2mu005_muic_show_adc, NULL);
#ifdef DEBUG_MUIC
static DEVICE_ATTR(mansw, 0664, s2mu005_muic_show_mansw, NULL);
static DEVICE_ATTR(dump_registers, 0664, s2mu005_muic_show_registers, NULL);
static DEVICE_ATTR(int_status, 0664, s2mu005_muic_show_interrupt_status, NULL);
#endif
static DEVICE_ATTR(usb_state, 0664, s2mu005_muic_show_usb_state, NULL);
#if defined(CONFIG_USB_HOST_NOTIFY)
static DEVICE_ATTR(otg_test, 0664,
s2mu005_muic_show_otg_test, s2mu005_muic_set_otg_test);
#endif
static DEVICE_ATTR(attached_dev, 0664, s2mu005_muic_show_attached_dev, NULL);
static DEVICE_ATTR(audio_path, 0664,
s2mu005_muic_show_audio_path, s2mu005_muic_set_audio_path);
static DEVICE_ATTR(apo_factory, 0664,
s2mu005_muic_show_apo_factory,
s2mu005_muic_set_apo_factory);
static DEVICE_ATTR(usb_en, 0664,
s2mu005_muic_show_usb_en,
s2mu005_muic_set_usb_en);
static struct attribute *s2mu005_muic_attributes[] = {
&dev_attr_uart_en.attr,
&dev_attr_uart_sel.attr,
&dev_attr_usb_sel.attr,
&dev_attr_adc.attr,
#ifdef DEBUG_MUIC
&dev_attr_mansw.attr,
&dev_attr_dump_registers.attr,
&dev_attr_int_status.attr,
#endif
&dev_attr_usb_state.attr,
#if defined(CONFIG_USB_HOST_NOTIFY)
&dev_attr_otg_test.attr,
#endif
&dev_attr_attached_dev.attr,
&dev_attr_audio_path.attr,
&dev_attr_apo_factory.attr,
&dev_attr_usb_en.attr,
NULL
};
static const struct attribute_group s2mu005_muic_group = {
.attrs = s2mu005_muic_attributes,
};
static int set_ctrl_reg(struct s2mu005_muic_data *muic_data, int shift, bool on)
{
struct i2c_client *i2c = muic_data->i2c;
u8 reg_val;
int ret = 0;
ret = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_CTRL1);
if (ret < 0)
pr_err("[muic] %s err read CTRL(%d)\n",
__func__, ret);
if (on)
reg_val = ret | (0x1 << shift);
else
reg_val = ret & ~(0x1 << shift);
if (reg_val ^ ret) {
pr_err("[muic] %s 0x%x != 0x%x, update\n",
__func__, reg_val, ret);
ret = s2mu005_i2c_guaranteed_wbyte(i2c, S2MU005_REG_MUIC_CTRL1,
reg_val);
if (ret < 0)
pr_err("[muic] %s err write(%d)\n",
__func__, ret);
} else {
pr_err("[muic] %s 0x%x == 0x%x, just return\n",
__func__, reg_val, ret);
return 0;
}
ret = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_CTRL1);
if (ret < 0)
pr_err("[muic] %s err read CTRL(%d)\n", __func__, ret);
else
pr_err("[muic] %s after change(0x%x)\n",
__func__, ret);
return ret;
}
static int set_int_mask(struct s2mu005_muic_data *muic_data, bool on)
{
int shift = CTRL_INT_MASK_SHIFT;
int ret = 0;
ret = set_ctrl_reg(muic_data, shift, on);
return ret;
}
static int set_manual_sw(struct s2mu005_muic_data *muic_data, bool on)
{
int shift = CTRL_MANUAL_SW_SHIFT;
int ret = 0;
ret = set_ctrl_reg(muic_data, shift, on);
return ret;
}
static int set_com_sw(struct s2mu005_muic_data *muic_data,
enum s2mu005_reg_manual_sw_value reg_val)
{
struct i2c_client *i2c = muic_data->i2c;
int ret = 0;
int temp = 0;
/* --- MANSW [7:5][4:2][1][0] : DM DP RSVD JIG --- */
temp = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_SW_CTRL);
if (temp < 0)
pr_err("[muic] %s err read MANSW(0x%x)\n",
__func__, temp);
if ((reg_val & MANUAL_SW_DM_DP_MASK) != (temp & MANUAL_SW_DM_DP_MASK)) {
pr_err("[muic] %s 0x%x != 0x%x, update\n",
__func__, (reg_val & MANUAL_SW_DM_DP_MASK), (temp & MANUAL_SW_DM_DP_MASK));
ret = s2mu005_i2c_guaranteed_wbyte(i2c,
S2MU005_REG_MUIC_SW_CTRL, ((reg_val & MANUAL_SW_DM_DP_MASK)|(temp & 0x03)));
if (ret < 0)
pr_err("[muic] %s err write MANSW(0x%x)\n",
__func__, ((reg_val & MANUAL_SW_DM_DP_MASK)|(temp & 0x03)));
} else {
pr_err("[muic] %s MANSW reg(0x%x), just pass\n",
__func__, reg_val);
}
return ret;
}
static int com_to_open_with_vbus(struct s2mu005_muic_data *muic_data)
{
enum s2mu005_reg_manual_sw_value reg_val;
int ret = 0;
reg_val = MANSW_OPEN_WITH_VBUS;
ret = set_com_sw(muic_data, reg_val);
if (ret)
pr_err("[muic] %s set_com_sw err\n", __func__);
return ret;
}
#ifndef com_to_open
static int com_to_open(struct s2mu005_muic_data *muic_data)
{
enum s2mu005_reg_manual_sw_value reg_val;
int ret = 0;
u8 vbvolt;
vbvolt = s2mu005_i2c_read_byte(muic_data->i2c, S2MU005_REG_MUIC_DEVICE_APPLE);
vbvolt &= DEV_TYPE_APPLE_VBUS_WAKEUP;
if (vbvolt) {
ret = com_to_open_with_vbus(muic_data);
return ret;
}
reg_val = MANSW_OPEN;
ret = set_com_sw(muic_data, reg_val);
if (ret)
pr_err("[muic] %s set_com_sw err\n", __func__);
return ret;
}
#endif
static int com_to_usb(struct s2mu005_muic_data *muic_data)
{
enum s2mu005_reg_manual_sw_value reg_val;
int ret = 0;
reg_val = MANSW_USB;
ret = set_com_sw(muic_data, reg_val);
if (ret)
pr_err("[muic] %s set_com_usb err\n", __func__);
return ret;
}
static int com_to_otg(struct s2mu005_muic_data *muic_data)
{
enum s2mu005_reg_manual_sw_value reg_val;
int ret = 0;
reg_val = MANSW_OTG;
ret = set_com_sw(muic_data, reg_val);
if (ret)
pr_err("[muic] %s set_com_otg err\n", __func__);
return ret;
}
static int com_to_uart(struct s2mu005_muic_data *muic_data)
{
enum s2mu005_reg_manual_sw_value reg_val;
int ret = 0;
if (muic_data->is_rustproof) {
pr_err("[muic] %s rustproof mode\n", __func__);
return ret;
}
reg_val = MANSW_UART;
ret = set_com_sw(muic_data, reg_val);
if (ret)
pr_err("[muic] %s set_com_uart err\n", __func__);
return ret;
}
static int com_to_audio(struct s2mu005_muic_data *muic_data)
{
enum s2mu005_reg_manual_sw_value reg_val;
int ret = 0;
reg_val = MANSW_AUDIO;
ret = set_com_sw(muic_data, reg_val);
if (ret)
pr_err("[muic] %s set_com_audio err\n", __func__);
return ret;
}
static int switch_to_dock_audio(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
ret = com_to_audio(muic_data);
if (ret) {
pr_err("[muic] %s com->audio set err\n", __func__);
return ret;
}
return ret;
}
static int switch_to_system_audio(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
return ret;
}
static int switch_to_ap_usb(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
ret = com_to_usb(muic_data);
if (ret) {
pr_err("[muic] %s com->usb set err\n", __func__);
return ret;
}
return ret;
}
static int switch_to_cp_usb(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
ret = com_to_usb(muic_data);
if (ret) {
pr_err("[muic] %s com->usb set err\n", __func__);
return ret;
}
return ret;
}
static int switch_to_ap_uart(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
#if !defined(CONFIG_MUIC_UART_SWITCH)
if (muic_data->pdata->gpio_uart_sel)
#endif
muic_data->pdata->set_gpio_uart_sel(MUIC_PATH_UART_AP);
ret = com_to_uart(muic_data);
if (ret) {
pr_err("[muic] %s com->uart set err\n", __func__);
return ret;
}
return ret;
}
static int switch_to_cp_uart(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
#if !defined(CONFIG_MUIC_UART_SWITCH)
if (muic_data->pdata->gpio_uart_sel)
#endif
muic_data->pdata->set_gpio_uart_sel(MUIC_PATH_UART_CP);
ret = com_to_uart(muic_data);
if (ret) {
pr_err("[muic] %s com->uart set err\n", __func__);
return ret;
}
return ret;
}
static int attach_charger(struct s2mu005_muic_data *muic_data,
muic_attached_dev_t new_dev)
{
int ret = 0;
pr_err("[muic] %s : %d\n", __func__, new_dev);
muic_data->attached_dev = new_dev;
return ret;
}
static int detach_charger(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
muic_data->attached_dev = ATTACHED_DEV_NONE_MUIC;
return ret;
}
static int attach_usb_util(struct s2mu005_muic_data *muic_data,
muic_attached_dev_t new_dev)
{
int ret = 0;
ret = attach_charger(muic_data, new_dev);
if (ret)
return ret;
if (muic_data->pdata->usb_path == MUIC_PATH_USB_CP) {
ret = switch_to_cp_usb(muic_data);
return ret;
}
ret = switch_to_ap_usb(muic_data);
return ret;
}
static int attach_usb(struct s2mu005_muic_data *muic_data,
muic_attached_dev_t new_dev)
{
int ret = 0;
if (muic_data->attached_dev == new_dev) {
pr_err("[muic] %s duplicated\n", __func__);
return ret;
}
pr_err("%s:%s\n", MFD_DEV_NAME, __func__);
pr_err("[muic] %s\n", __func__);
ret = attach_usb_util(muic_data, new_dev);
if (ret)
return ret;
return ret;
}
#if 0
static int set_vbus_interrupt(struct s2mu005_muic_data *muic_data, int enable)
{
struct i2c_client *i2c = muic_data->i2c;
int ret = 0;
if (enable) {
ret = s2mu005_i2c_write_byte(i2c, S2MU005_REG_MUIC_INT2_MASK,
REG_INTMASK2_VBUS);
if (ret < 0)
pr_err("[muic] %s(%d)\n", __func__, ret);
} else {
ret = s2mu005_i2c_write_byte(i2c, S2MU005_REG_MUIC_INT2_MASK,
REG_INTMASK2_VALUE);
if (ret < 0)
pr_err("[muic] %s(%d)\n", __func__, ret);
}
return ret;
}
#endif
static int attach_otg_usb(struct s2mu005_muic_data *muic_data,
muic_attached_dev_t new_dev)
{
int ret = 0;
if (muic_data->attached_dev == new_dev) {
pr_err("[muic] %s duplicated\n", __func__);
return ret;
}
pr_err("[muic] %s\n", __func__);
#ifdef CONFIG_MUIC_S2MU005_SUPPORT_LANHUB
/* LANHUB doesn't work under AUTO switch mode, so turn it off */
/* set MANUAL SW mode */
set_manual_sw(muic_data, 0);
/* enable RAW DATA mode, only for OTG LANHUB */
set_ctrl_reg(muic_data, CTRL_RAW_DATA_SHIFT , 0);
#endif
ret = com_to_otg(muic_data);
muic_data->attached_dev = new_dev;
return ret;
}
static int detach_otg_usb(struct s2mu005_muic_data *muic_data)
{
struct muic_platform_data *pdata = muic_data->pdata;
int ret = 0;
pr_err("[muic] %s : %d\n",
__func__, muic_data->attached_dev);
ret = com_to_open(muic_data);
if (ret)
return ret;
#ifdef CONFIG_MUIC_S2MU005_SUPPORT_LANHUB
/* disable RAW DATA mode */
set_ctrl_reg(muic_data, CTRL_RAW_DATA_SHIFT , 1);
#ifdef CONFIG_MACH_DEGAS
/* System rev less than 0.1 cannot use Auto switch mode in DEGAS */
if (system_rev >= 0x1)
#endif
/* set AUTO SW mode */
set_manual_sw(muic_data, 1);
#endif
muic_data->attached_dev = ATTACHED_DEV_NONE_MUIC;
if (pdata->usb_path == MUIC_PATH_USB_CP)
return ret;
return ret;
}
static int detach_usb(struct s2mu005_muic_data *muic_data)
{
struct muic_platform_data *pdata = muic_data->pdata;
int ret = 0;
pr_err("[muic] %s : %d\n",
__func__, muic_data->attached_dev);
ret = detach_charger(muic_data);
if (ret)
return ret;
ret = com_to_open(muic_data);
if (ret)
return ret;
muic_data->attached_dev = ATTACHED_DEV_NONE_MUIC;
if (pdata->usb_path == MUIC_PATH_USB_CP)
return ret;
return ret;
}
static int attach_deskdock(struct s2mu005_muic_data *muic_data,
muic_attached_dev_t new_dev, u8 vbvolt)
{
int ret = 0;
pr_err("[muic] %s vbus(%x)\n", __func__, vbvolt);
#ifdef CONFIG_MACH_DEGAS
/* Audio-out doesn't work under AUTO switch mode, so turn it off */
/* set MANUAL SW mode */
set_manual_sw(muic_data, 0);
#endif
ret = switch_to_dock_audio(muic_data);
if (ret)
return ret;
if (vbvolt)
ret = attach_charger(muic_data, new_dev);
else
ret = detach_charger(muic_data);
if (ret)
return ret;
muic_data->attached_dev = new_dev;
return ret;
}
static int detach_deskdock(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
#ifdef CONFIG_MACH_DEGAS
/* System rev less than 0.1 cannot use Auto switch mode in DEGAS */
if (system_rev >= 0x1)
set_manual_sw(muic_data, 1); /* set AUTO SW mode */
#endif
ret = switch_to_system_audio(muic_data);
if (ret)
pr_err("[muic] %s err changing audio path(%d)\n",
__func__, ret);
ret = detach_charger(muic_data);
if (ret)
pr_err("[muic] %s err detach_charger(%d)\n",
__func__, ret);
muic_data->attached_dev = ATTACHED_DEV_NONE_MUIC;
return ret;
}
static int attach_audiodock(struct s2mu005_muic_data *muic_data,
muic_attached_dev_t new_dev, u8 vbus)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
if (!vbus) {
ret = detach_charger(muic_data);
if (ret)
pr_err("[muic] %s err detach_charger(%d)\n",
__func__, ret);
ret = com_to_open(muic_data);
if (ret)
return ret;
muic_data->attached_dev = new_dev;
return ret;
}
ret = attach_usb_util(muic_data, new_dev);
if (ret)
pr_err("[muic] %s attach_usb_util(%d)\n",
__func__, ret);
muic_data->attached_dev = new_dev;
return ret;
}
static int detach_audiodock(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
ret = detach_charger(muic_data);
if (ret)
pr_err("[muic] %s err detach_charger(%d)\n",
__func__, ret);
ret = com_to_open(muic_data);
if (ret)
return ret;
muic_data->attached_dev = ATTACHED_DEV_NONE_MUIC;
return ret;
}
static int attach_jig_uart_boot_off(struct s2mu005_muic_data *muic_data,
muic_attached_dev_t new_dev)
{
struct muic_platform_data *pdata = muic_data->pdata;
int ret = 0;
pr_err("[muic] %s(%d)\n",
__func__, new_dev);
if (pdata->uart_path == MUIC_PATH_UART_AP)
ret = switch_to_ap_uart(muic_data);
else
ret = switch_to_cp_uart(muic_data);
ret = attach_charger(muic_data, new_dev);
return ret;
}
static int detach_jig_uart_boot_off(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_err("[muic] %s\n", __func__);
ret = detach_charger(muic_data);
if (ret)
pr_err("[muic] %s err detach_charger(%d)\n", __func__, ret);
muic_data->attached_dev = ATTACHED_DEV_NONE_MUIC;
return ret;
}
static int attach_jig_uart_boot_on(struct s2mu005_muic_data *muic_data,
muic_attached_dev_t new_dev)
{
int ret = 0;
pr_err("[muic] %s(%d)\n",
__func__, new_dev);
ret = set_com_sw(muic_data, MANSW_OPEN);
if (ret)
pr_err("[muic] %s set_com_sw err\n", __func__);
muic_data->attached_dev = ATTACHED_DEV_JIG_UART_ON_MUIC;
return ret;
}
static int dettach_jig_uart_boot_on(struct s2mu005_muic_data *muic_data)
{
pr_err("[muic] %s\n", __func__);
muic_data->attached_dev = ATTACHED_DEV_NONE_MUIC;
return 0;
}
static int attach_jig_usb_boot_off(struct s2mu005_muic_data *muic_data,
u8 vbvolt)
{
int ret = 0;
if (muic_data->attached_dev == ATTACHED_DEV_JIG_USB_OFF_MUIC) {
pr_err("[muic] %s duplicated\n", __func__);
return ret;
}
pr_err("[muic] %s\n", __func__);
ret = attach_usb_util(muic_data, ATTACHED_DEV_JIG_USB_OFF_MUIC);
if (ret)
return ret;
return ret;
}
static int attach_jig_usb_boot_on(struct s2mu005_muic_data *muic_data,
u8 vbvolt)
{
int ret = 0;
if (muic_data->attached_dev == ATTACHED_DEV_JIG_USB_ON_MUIC) {
pr_err("[muic] %s duplicated\n", __func__);
return ret;
}
pr_err("[muic] %s\n", __func__);
ret = attach_usb_util(muic_data, ATTACHED_DEV_JIG_USB_ON_MUIC);
if (ret)
return ret;
return ret;
}
static void s2mu005_muic_handle_attach(struct s2mu005_muic_data *muic_data,
muic_attached_dev_t new_dev, int adc, u8 vbvolt)
{
int ret = 0;
bool noti = (new_dev != muic_data->attached_dev) ? true : false;
muic_data->is_jig_on = false;
pr_err("[muic] %s : muic_data->attached_dev: %d, new_dev: %d, muic_data->suspended: %d\n",
__func__, muic_data->attached_dev, new_dev, muic_data->suspended);
switch (muic_data->attached_dev) {
case ATTACHED_DEV_USB_MUIC:
case ATTACHED_DEV_CDP_MUIC:
case ATTACHED_DEV_JIG_USB_OFF_MUIC:
case ATTACHED_DEV_JIG_USB_ON_MUIC:
if (new_dev != muic_data->attached_dev) {
pr_err("[muic] %s new(%d)!=attached(%d)\n",
__func__, new_dev, muic_data->attached_dev);
ret = detach_usb(muic_data);
}
break;
case ATTACHED_DEV_OTG_MUIC:
/* OTG -> LANHUB, meaning TA is attached to LANHUB(OTG) */
if (new_dev != muic_data->attached_dev) {
pr_err("[muic] %s new(%d)!=attached(%d)",
__func__, new_dev, muic_data->attached_dev);
ret = detach_otg_usb(muic_data);
}
break;
case ATTACHED_DEV_AUDIODOCK_MUIC:
if (new_dev != muic_data->attached_dev) {
pr_err("[muic] %s new(%d)!=attached(%d)\n",
__func__, new_dev, muic_data->attached_dev);
ret = detach_audiodock(muic_data);
}
break;
case ATTACHED_DEV_TA_MUIC:
case ATTACHED_DEV_UNDEFINED_CHARGING_MUIC:
if (new_dev != muic_data->attached_dev) {
pr_err("[muic] %s new(%d)!=attached(%d)\n",
__func__, new_dev, muic_data->attached_dev);
ret = detach_charger(muic_data);
}
break;
case ATTACHED_DEV_JIG_UART_OFF_VB_OTG_MUIC:
case ATTACHED_DEV_JIG_UART_OFF_VB_FG_MUIC:
case ATTACHED_DEV_JIG_UART_OFF_VB_MUIC:
case ATTACHED_DEV_JIG_UART_OFF_MUIC:
if (new_dev != ATTACHED_DEV_JIG_UART_OFF_MUIC) {
pr_err("[muic] %s new(%d)!=attached(%d)\n",
__func__, new_dev, muic_data->attached_dev);
ret = detach_jig_uart_boot_off(muic_data);
}
break;
case ATTACHED_DEV_JIG_UART_ON_MUIC:
case ATTACHED_DEV_DESKDOCK_MUIC:
if (new_dev != muic_data->attached_dev) {
pr_err("[muic] %s new(%d)!=attached(%d)\n",
__func__, new_dev, muic_data->attached_dev);
if (muic_data->is_factory_start)
ret = detach_deskdock(muic_data);
else {
noti = false;
ret = dettach_jig_uart_boot_on(muic_data);
}
}
break;
default:
break;
}
#if defined(CONFIG_MUIC_NOTIFIER)
if (noti) {
if (!muic_data->suspended)
muic_notifier_detach_attached_dev(muic_data->attached_dev);
else
muic_data->need_to_noti = true;
}
#endif /* CONFIG_MUIC_NOTIFIER */
switch (new_dev) {
case ATTACHED_DEV_USB_MUIC:
case ATTACHED_DEV_CDP_MUIC:
ret = attach_usb(muic_data, new_dev);
break;
case ATTACHED_DEV_OTG_MUIC:
ret = attach_otg_usb(muic_data, new_dev);
break;
case ATTACHED_DEV_AUDIODOCK_MUIC:
ret = attach_audiodock(muic_data, new_dev, vbvolt);
break;
case ATTACHED_DEV_TA_MUIC:
case ATTACHED_DEV_UNDEFINED_CHARGING_MUIC:
com_to_open_with_vbus(muic_data);
ret = attach_charger(muic_data, new_dev);
break;
case ATTACHED_DEV_JIG_UART_OFF_VB_OTG_MUIC:
case ATTACHED_DEV_JIG_UART_OFF_VB_FG_MUIC:
case ATTACHED_DEV_JIG_UART_OFF_VB_MUIC:
case ATTACHED_DEV_JIG_UART_OFF_MUIC:
muic_data->is_jig_on = true;
ret = attach_jig_uart_boot_off(muic_data, new_dev);
break;
case ATTACHED_DEV_JIG_UART_ON_MUIC:
/* call attach_deskdock to wake up the device */
muic_data->is_jig_on = true;
if (muic_data->is_factory_start)
ret = attach_deskdock(muic_data, new_dev, vbvolt);
else {
noti = false;
ret = attach_jig_uart_boot_on(muic_data, new_dev);
}
break;
case ATTACHED_DEV_JIG_USB_OFF_MUIC:
muic_data->is_jig_on = true;
ret = attach_jig_usb_boot_off(muic_data, vbvolt);
break;
case ATTACHED_DEV_JIG_USB_ON_MUIC:
muic_data->is_jig_on = true;
ret = attach_jig_usb_boot_on(muic_data, vbvolt);
break;
case ATTACHED_DEV_DESKDOCK_MUIC:
ret = attach_deskdock(muic_data, new_dev, vbvolt);
break;
case ATTACHED_DEV_UNKNOWN_MUIC:
com_to_open_with_vbus(muic_data);
ret = attach_charger(muic_data, new_dev);
break;
default:
noti = false;
pr_err("[muic] %s unsupported dev=%d, adc=0x%x, vbus=%c\n",
__func__, new_dev, adc, (vbvolt ? 'O' : 'X'));
break;
}
#if !defined(CONFIG_MUIC_S2MU005_ENABLE_AUTOSW)
ret = s2mu005_muic_jig_on(muic_data);
#endif
if (ret)
pr_err("[muic] %s something wrong %d (ERR=%d)\n",
__func__, new_dev, ret);
pr_err("%s:%s\n", MFD_DEV_NAME, __func__);
#if defined(CONFIG_MUIC_NOTIFIER)
if (noti) {
if (!muic_data->suspended)
muic_notifier_attach_attached_dev(new_dev);
else
muic_data->need_to_noti = true;
}
#endif /* CONFIG_MUIC_NOTIFIER */
}
static void s2mu005_muic_handle_detach(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
bool noti = true;
ret = com_to_open(muic_data);
switch (muic_data->attached_dev) {
case ATTACHED_DEV_JIG_USB_OFF_MUIC:
case ATTACHED_DEV_JIG_USB_ON_MUIC:
muic_data->is_jig_on = false;
case ATTACHED_DEV_USB_MUIC:
case ATTACHED_DEV_CDP_MUIC:
ret = detach_usb(muic_data);
break;
case ATTACHED_DEV_OTG_MUIC:
ret = detach_otg_usb(muic_data);
break;
case ATTACHED_DEV_TA_MUIC:
case ATTACHED_DEV_UNDEFINED_CHARGING_MUIC:
ret = detach_charger(muic_data);
break;
case ATTACHED_DEV_JIG_UART_OFF_VB_OTG_MUIC:
case ATTACHED_DEV_JIG_UART_OFF_VB_FG_MUIC:
case ATTACHED_DEV_JIG_UART_OFF_VB_MUIC:
case ATTACHED_DEV_JIG_UART_OFF_MUIC:
muic_data->is_jig_on = false;
ret = detach_jig_uart_boot_off(muic_data);
break;
case ATTACHED_DEV_JIG_UART_ON_MUIC:
muic_data->is_jig_on = false;
case ATTACHED_DEV_DESKDOCK_MUIC:
if (muic_data->is_factory_start)
ret = detach_deskdock(muic_data);
else {
noti = false;
ret = dettach_jig_uart_boot_on(muic_data);
}
break;
case ATTACHED_DEV_AUDIODOCK_MUIC:
ret = detach_audiodock(muic_data);
break;
case ATTACHED_DEV_NONE_MUIC:
pr_err("[muic] %s duplicated(NONE)\n", __func__);
break;
case ATTACHED_DEV_UNKNOWN_MUIC:
pr_err("[muic] %s UNKNOWN\n", __func__);
ret = detach_charger(muic_data);
muic_data->attached_dev = ATTACHED_DEV_NONE_MUIC;
break;
default:
noti = false;
pr_err("[muic] %s invalid type(%d)\n",
__func__, muic_data->attached_dev);
muic_data->attached_dev = ATTACHED_DEV_NONE_MUIC;
break;
}
#if !defined(CONFIG_MUIC_S2MU005_ENABLE_AUTOSW)
ret = s2mu005_muic_jig_on(muic_data);
#endif
if (ret)
pr_err("[muic] %s something wrong %d (ERR=%d)\n",
__func__, muic_data->attached_dev, ret);
#if defined(CONFIG_MUIC_NOTIFIER)
if (noti) {
if (!muic_data->suspended)
muic_notifier_detach_attached_dev(muic_data->attached_dev);
else
muic_data->need_to_noti = true;
}
#endif /* CONFIG_MUIC_NOTIFIER */
}
static void s2mu005_muic_detect_dev(struct s2mu005_muic_data *muic_data)
{
struct i2c_client *i2c = muic_data->i2c;
muic_attached_dev_t new_dev = ATTACHED_DEV_UNKNOWN_MUIC;
int intr = MUIC_INTR_DETACH;
int vbvolt = 0, vmid = 0;
int val1 = 0, val2 = 0, val3 = 0, val4 = 0, adc = 0;
int val5 = 0, val6 = 0, val7 = 0;
val1 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_DEVICE_TYPE1);
val2 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_DEVICE_TYPE2);
val3 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_DEVICE_TYPE3);
val4 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_SC_STATUS0);
adc = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_ADC);
val5 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_DEVICE_APPLE);
val6 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_CHG_TYPE);
val7 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_SC_STATUS2);
vbvolt = !!(val5 & DEV_TYPE_APPLE_VBUS_WAKEUP);
vmid = !!(val7 & 0x7);
pr_err("[muic] dev[1:0x%x, 2:0x%x, 3:0x%x]\n"
", adc:0x%x, vbvolt:0x%x, apple:0x%x, chg_type:0x%x, vmid:0x%x\n",
val1, val2, val3, adc, vbvolt, val5, val6, vmid);
pr_err("%s:%s\n", MFD_DEV_NAME, __func__);
if (ADC_CONVERSION_MASK & adc) {
pr_err("[muic] ADC conversion error!\n");
return ;
}
/* Work-Around for EVT0 : only if VBUS connected, then apply CDP */
/*========================================== */
if (muic_data->muic_version == 0) {
if (vbvolt) {
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_USB_MUIC;
pr_err("[muic] EVT0 Work-around USB_CDP DETECTED\n");
}
}
/* Attached */
switch (val1) {
case DEV_TYPE1_CDP:
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_CDP_MUIC;
pr_err("[muic] USB_CDP DETECTED\n");
break;
case DEV_TYPE1_USB:
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_USB_MUIC;
pr_err("[muic] USB DETECTED\n");
break;
case DEV_TYPE1_DEDICATED_CHG:
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_TA_MUIC;
pr_err("[muic] DEDICATED CHARGER DETECTED\n");
break;
case DEV_TYPE1_USB_OTG:
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_OTG_MUIC;
pr_err("[muic] USB_OTG DETECTED\n");
break;
case DEV_TYPE1_T1_T2_CHG:
intr = MUIC_INTR_ATTACH;
/* 200K, 442K should be checkef */
if (ADC_CEA936ATYPE2_CHG == adc)
new_dev = ATTACHED_DEV_TA_MUIC;
else
new_dev = ATTACHED_DEV_USB_MUIC;
break;
default:
break;
}
switch (val2) {
case DEV_TYPE2_JIG_UART_OFF:
intr = MUIC_INTR_ATTACH;
if (muic_data->is_otg_test) {
mdelay(100);
val7 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_SC_STATUS2);
vmid = val7 & 0x7;
if (vmid == 0x4) {
pr_err("[muic] OTG_TEST DETECTED, vmid = %d\n", vmid);
vbvolt = 1;
new_dev = ATTACHED_DEV_JIG_UART_OFF_VB_OTG_MUIC;
} else
new_dev = ATTACHED_DEV_JIG_UART_OFF_MUIC;
} else if (vbvolt)
new_dev = ATTACHED_DEV_JIG_UART_OFF_VB_MUIC;
else
new_dev = ATTACHED_DEV_JIG_UART_OFF_MUIC;
pr_err("[muic] JIG_UART_OFF DETECTED\n");
break;
case DEV_TYPE2_JIG_USB_OFF:
if (!vbvolt)
break;
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_JIG_USB_OFF_MUIC;
pr_err("[muic] JIG_USB_OFF DETECTED\n");
break;
case DEV_TYPE2_JIG_USB_ON:
if (!vbvolt)
break;
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_JIG_USB_ON_MUIC;
pr_err("[muic] JIG_USB_ON DETECTED\n");
break;
case DEV_TYPE2_JIG_UART_ON:
if (new_dev != ATTACHED_DEV_JIG_UART_ON_MUIC) {
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_JIG_UART_ON_MUIC;
pr_err("[muic] ADC JIG_UART_ON DETECTED\n");
}
break;
default:
break;
}
if (muic_data->muic_version > 0) {
if ((val6 & DEV_TYPE_CHG_TYPE) &&
(new_dev == ATTACHED_DEV_UNKNOWN_MUIC)) {
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_TA_MUIC;
pr_err("[muic] TYPE3_CHARGER DETECTED\n");
}
if (val2 & DEV_TYPE2_AV || val3 & DEV_TYPE3_AV_WITH_VBUS) {
#ifdef CONFIG_MUIC_S2MU005_SUPPORT_DESKDOCK
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_DESKDOCK_MUIC;
#else
new_dev = ATTACHED_DEV_UNKNOWN_MUIC;
#endif
pr_err("[muic] DESKDOCK DETECTED\n");
}
/* If there is no matching device found using device type registers
use ADC to find the attached device */
if (new_dev == ATTACHED_DEV_UNKNOWN_MUIC) {
switch (adc) {
case ADC_CEA936ATYPE1_CHG: /*200k ohm */
intr = MUIC_INTR_ATTACH;
/* This is workaournd for LG USB cable
which has 219k ohm ID */
new_dev = ATTACHED_DEV_USB_MUIC;
pr_err("[muic] TYPE1 CHARGER DETECTED(USB)\n");
break;
case ADC_CEA936ATYPE2_CHG:
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_TA_MUIC;
pr_err("[muic] TYPE1/2 CHARGER DETECTED(TA)\n");
break;
case ADC_JIG_USB_OFF: /* 255k */
if (!vbvolt)
break;
if (new_dev != ATTACHED_DEV_JIG_USB_OFF_MUIC) {
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_JIG_USB_OFF_MUIC;
pr_err("[muic] ADC JIG_USB_OFF DETECTED\n");
}
break;
case ADC_JIG_USB_ON:
if (!vbvolt)
break;
if (new_dev != ATTACHED_DEV_JIG_USB_ON_MUIC) {
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_JIG_USB_ON_MUIC;
pr_err("[muic] ADC JIG_USB_ON DETECTED\n");
}
break;
case ADC_JIG_UART_OFF:
intr = MUIC_INTR_ATTACH;
if (muic_data->is_otg_test) {
mdelay(100);
val7 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_SC_STATUS2);
vmid = val7 & 0x7;
if (vmid == 0x4) {
pr_err("[muic] OTG_TEST DETECTED, vmid = %d\n", vmid);
vbvolt = 1;
new_dev = ATTACHED_DEV_JIG_UART_OFF_VB_OTG_MUIC;
} else
new_dev = ATTACHED_DEV_JIG_UART_OFF_MUIC;
} else if (vbvolt)
new_dev = ATTACHED_DEV_JIG_UART_OFF_VB_MUIC;
else
new_dev = ATTACHED_DEV_JIG_UART_OFF_MUIC;
pr_err("[muic] ADC JIG_UART_OFF DETECTED\n");
break;
case ADC_JIG_UART_ON:
if (new_dev != ATTACHED_DEV_JIG_UART_ON_MUIC) {
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_JIG_UART_ON_MUIC;
pr_err("[muic] ADC JIG_UART_ON DETECTED\n");
}
break;
case ADC_SMARTDOCK: /* 0x10000 40.2K ohm */
/* SMARTDOCK is not supported */
/* force not to charge the device with SMARTDOCK */
break;
case ADC_AUDIODOCK:
#ifdef CONFIG_MUIC_S2MU005_SUPPORT_AUDIODOCK
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_AUDIODOCK_MUIC;
#endif
pr_err("[muic] ADC AUDIODOCK DETECTED\n");
break;
case ADC_OPEN:
/* sometimes muic fails to
catch JIG_UART_OFF detaching */
/* double check with ADC */
if (new_dev == ATTACHED_DEV_JIG_UART_OFF_MUIC) {
new_dev = ATTACHED_DEV_UNKNOWN_MUIC;
intr = MUIC_INTR_DETACH;
pr_err("[muic] ADC OPEN DETECTED\n");
}
break;
default:
pr_err("[muic] %s unsupported ADC(0x%02x)\n",
__func__, adc);
break;
}
}
}
/*========================================== */
#if 0
if ((ATTACHED_DEV_UNKNOWN_MUIC == new_dev)
&& (ADC_OPEN != adc)) {
if (vbvolt) {
intr = MUIC_INTR_ATTACH;
new_dev = ATTACHED_DEV_UNDEFINED_CHARGING_MUIC;
pr_err("[muic] UNDEFINED VB DETECTED\n");
} else
intr = MUIC_INTR_DETACH;
}
#endif
if (intr == MUIC_INTR_ATTACH)
s2mu005_muic_handle_attach(muic_data, new_dev, adc, vbvolt);
else
s2mu005_muic_handle_detach(muic_data);
#if defined(CONFIG_VBUS_NOTIFIER)
vbus_notifier_handle((!!vbvolt) ? STATUS_VBUS_HIGH : STATUS_VBUS_LOW);
#endif /* CONFIG_VBUS_NOTIFIER */
}
static int s2mu005_muic_reg_init(struct s2mu005_muic_data *muic_data)
{
struct i2c_client *i2c = muic_data->i2c;
int ret;
int val1, val2, val3, adc;
pr_err("[muic] %s\n", __func__);
#if 0
ret = s2mu005_i2c_read_byte(i2c, S2MU005_MUIC_REG_DEVID);
if (ret == 0x18)
muic_data->rev_id = 2;
else
muic_data->rev_id = 0;
#endif
val1 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_DEVICE_TYPE1);
val2 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_DEVICE_TYPE2);
val3 = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_DEVICE_TYPE3);
adc = s2mu005_i2c_read_byte(i2c, S2MU005_REG_MUIC_ADC);
pr_err("[muic] dev[1:0x%x, 2:0x%x, 3:0x%x], adc:0x%x\n", val1, val2, val3, adc);
ret = s2mu005_i2c_guaranteed_wbyte(i2c,
S2MU005_REG_MUIC_CTRL1, CTRL_MASK);
if (ret < 0)
pr_err("[muic] failed to write ctrl(%d)\n", ret);
return ret;
}
static irqreturn_t s2mu005_muic_irq_thread(int irq, void *data)
{
struct s2mu005_muic_data *muic_data = data;
mutex_lock(&muic_data->muic_mutex);
wake_lock(&muic_data->wake_lock);
pr_err("%s:%s\n", MFD_DEV_NAME, __func__);
/* device detection */
s2mu005_muic_detect_dev(muic_data);
wake_unlock(&muic_data->wake_lock);
mutex_unlock(&muic_data->muic_mutex);
return IRQ_HANDLED;
}
static int s2mu005_init_rev_info(struct s2mu005_muic_data *muic_data)
{
u8 dev_id;
int ret = 0;
pr_err("[muic] %s\n", __func__);
dev_id = s2mu005_i2c_read_byte(muic_data->i2c, S2MU005_REG_REV_ID);
if (dev_id < 0) {
pr_err("[muic] %s(%d)\n", __func__, dev_id);
ret = -ENODEV;
} else {
muic_data->muic_vendor = 0x05;
muic_data->muic_version = (dev_id & 0x0F);
pr_err("[muic] %s : vendor=0x%x, ver=0x%x\n",
__func__, muic_data->muic_vendor,
muic_data->muic_version);
}
return ret;
}
#define REQUEST_IRQ(_irq, _dev_id, _name) \
do { \
ret = request_threaded_irq(_irq, NULL, s2mu005_muic_irq_thread, \
0, _name, _dev_id); \
if (ret < 0) { \
pr_err("%s:%s Failed to request IRQ #%d: %d\n", \
MUIC_DEV_NAME, __func__, _irq, ret); \
_irq = 0; \
} \
} while (0)
static int s2mu005_muic_irq_init(struct s2mu005_muic_data *muic_data)
{
int ret = 0;
pr_info("%s:%s\n", MUIC_DEV_NAME, __func__);
if (muic_data->mfd_pdata && (muic_data->mfd_pdata->irq_base > 0)) {
int irq_base = muic_data->mfd_pdata->irq_base;
/* request MUIC IRQ */
muic_data->irq_attach = irq_base + S2MU005_MUIC_IRQ1_ATTATCH;
REQUEST_IRQ(muic_data->irq_attach, muic_data, "muic-attach");
muic_data->irq_detach = irq_base + S2MU005_MUIC_IRQ1_DETACH;
REQUEST_IRQ(muic_data->irq_detach, muic_data, "muic-detach");
muic_data->irq_rid_chg = irq_base + S2MU005_MUIC_IRQ1_RID_CHG;
REQUEST_IRQ(muic_data->irq_rid_chg, muic_data, "muic-rid_chg");
muic_data->irq_vbus_on = irq_base + S2MU005_MUIC_IRQ2_VBUS_ON;
REQUEST_IRQ(muic_data->irq_vbus_on, muic_data, "muic-vbus_on");
muic_data->irq_rsvd_attach = irq_base + S2MU005_MUIC_IRQ2_RSVD_ATTACH;
REQUEST_IRQ(muic_data->irq_rsvd_attach, muic_data, "muic-rsvd_attach");
muic_data->irq_adc_change = irq_base + S2MU005_MUIC_IRQ2_ADC_CHANGE;
REQUEST_IRQ(muic_data->irq_adc_change, muic_data, "muic-adc_change");
muic_data->irq_av_charge = irq_base + S2MU005_MUIC_IRQ2_AV_CHARGE;
REQUEST_IRQ(muic_data->irq_av_charge, muic_data, "muic-av_charge");
muic_data->irq_vbus_off = irq_base + S2MU005_MUIC_IRQ2_VBUS_OFF;
REQUEST_IRQ(muic_data->irq_vbus_off, muic_data, "muic-vbus_off");
}
pr_err("%s:%s\n", MFD_DEV_NAME, __func__);
pr_err("%s:%s muic-attach(%d), muic-detach(%d), muic-rid_chg(%d), muic-vbus_on(%d)",
MUIC_DEV_NAME, __func__, muic_data->irq_attach, muic_data->irq_detach, muic_data->irq_rid_chg, \
muic_data->irq_vbus_on);
pr_err("muic-rsvd_attach(%d), muic-adc_change(%d), muic-av_charge(%d), muic-vbus_off(%d)\n",
muic_data->irq_rsvd_attach, muic_data->irq_adc_change, muic_data->irq_av_charge, muic_data->irq_vbus_off);
return ret;
}
#define FREE_IRQ(_irq, _dev_id, _name) \
do { \
if (_irq) { \
free_irq(_irq, _dev_id); \
pr_info("%s:%s IRQ(%d):%s free done\n", MUIC_DEV_NAME, \
__func__, _irq, _name); \
} \
} while (0)
static void s2mu005_muic_free_irqs(struct s2mu005_muic_data *muic_data)
{
pr_info("%s:%s\n", MUIC_DEV_NAME, __func__);
/* free MUIC IRQ */
FREE_IRQ(muic_data->irq_attach, muic_data, "muic-attach");
FREE_IRQ(muic_data->irq_detach, muic_data, "muic-detach");
FREE_IRQ(muic_data->irq_rid_chg, muic_data, "muic-rid_chg");
FREE_IRQ(muic_data->irq_vbus_on, muic_data, "muic-vbus_on");
FREE_IRQ(muic_data->irq_rsvd_attach, muic_data, "muic-rsvd_attach");
FREE_IRQ(muic_data->irq_adc_change, muic_data, "muic-adc_change");
FREE_IRQ(muic_data->irq_av_charge, muic_data, "muic-av_charge");
FREE_IRQ(muic_data->irq_vbus_off, muic_data, "muic-vbus_off");
}
#if defined(CONFIG_OF)
static int of_s2mu005_muic_dt(struct device *dev, struct s2mu005_muic_data *muic_data)
{
struct device_node *np, *np_muic;
int ret = 0;
pr_info("%s:%s\n", MUIC_DEV_NAME, __func__);
np = dev->parent->of_node;
if (!np) {
pr_err("[muic] %s : could not find np\n", __func__);
return -ENODEV;
}
np_muic = of_find_node_by_name(np, "muic");
if (!np_muic) {
pr_err("[muic] %s : could not find muic sub-node np_muic\n", __func__);
return -EINVAL;
}
#if !defined(CONFIG_MUIC_UART_SWITCH)
if (of_gpio_count(np_muic) < 1) {
pr_err("[muic] %s : could not find muic gpio\n", __func__);
muic_data->pdata->gpio_uart_sel = 0;
} else
muic_data->pdata->gpio_uart_sel = of_get_gpio(np_muic, 0);
#else
muic_data->pdata->uart_addr =
(const char *)of_get_property(np_muic, "muic,uart_addr", NULL);
muic_data->pdata->uart_txd =
(const char *)of_get_property(np_muic, "muic,uart_txd", NULL);
muic_data->pdata->uart_rxd =
(const char *)of_get_property(np_muic, "muic,uart_rxd", NULL);
#endif
return ret;
}
#endif /* CONFIG_OF */
/* if need to set s2mu005 pdata */
static struct of_device_id s2mu005_muic_match_table[] = {
{ .compatible = "samsung,s2mu005-muic",},
{},
};
static int s2mu005_muic_probe(struct platform_device *pdev)
{
struct s2mu005_dev *s2mu005 = dev_get_drvdata(pdev->dev.parent);
struct s2mu005_platform_data *mfd_pdata = dev_get_platdata(s2mu005->dev);
struct s2mu005_muic_data *muic_data;
int ret = 0;
pr_err("[muic] %s:%s\n", MFD_DEV_NAME, __func__);
muic_data = kzalloc(sizeof(struct s2mu005_muic_data), GFP_KERNEL);
if (!muic_data) {
pr_err("[muic] %s: failed to allocate driver data\n", __func__);
ret = -ENOMEM;
goto err_return;
}
if (!mfd_pdata) {
pr_err("%s: failed to get s2mu005 mfd platform data\n", __func__);
ret = -ENOMEM;
goto err_kfree;
}
/* save platfom data for gpio control functions */
muic_data->dev = &pdev->dev;
muic_data->i2c = s2mu005->i2c;
muic_data->mfd_pdata = mfd_pdata;
muic_data->pdata = &muic_pdata;
#if defined(CONFIG_OF)
ret = of_s2mu005_muic_dt(&pdev->dev, muic_data);
if (ret < 0)
pr_err("[muic] no muic dt! ret[%d]\n", ret);
#endif /* CONFIG_OF */
mutex_init(&muic_data->muic_mutex);
muic_data->is_factory_start = false;
muic_data->attached_dev = ATTACHED_DEV_UNKNOWN_MUIC;
muic_data->is_usb_ready = false;
platform_set_drvdata(pdev, muic_data);
#if !defined(CONFIG_MUIC_UART_SWITCH)
if (muic_pdata.gpio_uart_sel)
#endif
muic_pdata.set_gpio_uart_sel = s2mu005_set_gpio_uart_sel;
#ifdef CONFIG_SEC_SYSFS
/* create sysfs group */
ret = sysfs_create_group(&switch_device->kobj, &s2mu005_muic_group);
if (ret) {
pr_err("[muic] failed to create sysfs\n");
goto fail;
}
dev_set_drvdata(switch_device, muic_data);
#endif
ret = s2mu005_init_rev_info(muic_data);
if (ret) {
pr_err("[muic] failed to init muic(%d)\n", ret);
goto fail;
}
ret = s2mu005_muic_reg_init(muic_data);
if (ret) {
pr_err("[muic] failed to init muic(%d)\n", ret);
goto fail;
}
#if 0
ret = s2mu005_i2c_read_byte(muic_data->i2c, S2MU005_REG_MUIC_SW_CTRL);
if (ret < 0)
pr_err("[muic] %s: err MANSW (%d)\n", __func__, ret);
else {
/* RUSTPROOF : disable UART connection if MANSW
from BL is OPEN_RUSTPROOF */
if (ret == MANSW_OPEN_RUSTPROOF) {
muic_data->is_rustproof = true;
com_to_open_with_vbus(muic_data);
} else {
muic_data->is_rustproof = false;
}
}
#else
muic_data->is_rustproof = muic_data->pdata->rustproof_on;
#endif
if (muic_data->pdata->init_switch_dev_cb)
muic_data->pdata->init_switch_dev_cb();
ret = s2mu005_muic_irq_init(muic_data);
if (ret) {
pr_err("[muic] %s: failed to init irq(%d)\n", __func__, ret);
goto fail_init_irq;
}
wake_lock_init(&muic_data->wake_lock, WAKE_LOCK_SUSPEND, "muic_wake");
/* initial cable detection */
set_int_mask(muic_data, false);
#ifdef CONFIG_SEC_FACTORY
init_otg_reg(muic_data);
#endif
s2mu005_muic_irq_thread(-1, muic_data);
return 0;
fail_init_irq:
s2mu005_muic_free_irqs(muic_data);
fail:
#ifdef CONFIG_SEC_SYSFS
sysfs_remove_group(&switch_device->kobj, &s2mu005_muic_group);
#endif
mutex_destroy(&muic_data->muic_mutex);
err_kfree:
kfree(muic_data);
err_return:
return ret;
}
static int s2mu005_muic_remove(struct platform_device *pdev)
{
struct s2mu005_muic_data *muic_data = platform_get_drvdata(pdev);
#ifdef CONFIG_SEC_SYSFS
sysfs_remove_group(&switch_device->kobj, &s2mu005_muic_group);
#endif
if (muic_data) {
pr_err("[muic] %s\n", __func__);
disable_irq_wake(muic_data->i2c->irq);
s2mu005_muic_free_irqs(muic_data);
mutex_destroy(&muic_data->muic_mutex);
i2c_set_clientdata(muic_data->i2c, NULL);
kfree(muic_data);
}
return 0;
}
static void s2mu005_muic_shutdown(struct device *dev)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
int ret;
pr_err("[muic] %s\n", __func__);
if (!muic_data->i2c) {
pr_err("[muic] %s no muic i2c client\n", __func__);
return;
}
pr_err("[muic] open D+,D-,V_bus line\n");
ret = com_to_open(muic_data);
if (ret < 0)
pr_err("[muic] fail to open mansw\n");
/* set auto sw mode before shutdown to make sure device goes into */
/* LPM charging when TA or USB is connected during off state */
pr_err("[muic] muic auto detection enable\n");
ret = set_manual_sw(muic_data, true);
if (ret < 0) {
pr_err("[muic] %s fail to update reg\n", __func__);
return;
}
}
#if defined CONFIG_PM
static int s2mu005_muic_suspend(struct device *dev)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
muic_data->suspended = true;
return 0;
}
static int s2mu005_muic_resume(struct device *dev)
{
struct s2mu005_muic_data *muic_data = dev_get_drvdata(dev);
muic_data->suspended = false;
if (muic_data->need_to_noti) {
if (muic_data->attached_dev)
muic_notifier_attach_attached_dev(muic_data->attached_dev);
else
muic_notifier_detach_attached_dev(muic_data->attached_dev);
muic_data->need_to_noti = false;
}
return 0;
}
#else
#define s2mu005_muic_suspend NULL
#define s2mu005_muic_resume NULL
#endif
static SIMPLE_DEV_PM_OPS(s2mu005_muic_pm_ops, s2mu005_muic_suspend,
s2mu005_muic_resume);
static struct platform_driver s2mu005_muic_driver = {
.driver = {
.name = "s2mu005-muic",
.owner = THIS_MODULE,
.of_match_table = s2mu005_muic_match_table,
#ifdef CONFIG_PM
.pm = &s2mu005_muic_pm_ops,
#endif
.shutdown = s2mu005_muic_shutdown,
},
.probe = s2mu005_muic_probe,
.remove = s2mu005_muic_remove,
};
static int __init s2mu005_muic_init(void)
{
return platform_driver_register(&s2mu005_muic_driver);
}
module_init(s2mu005_muic_init);
static void __exit s2mu005_muic_exit(void)
{
platform_driver_unregister(&s2mu005_muic_driver);
}
module_exit(s2mu005_muic_exit);
MODULE_DESCRIPTION("S2MU005 USB Switch driver");
MODULE_LICENSE("GPL");
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