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android_kernel_samsung_msm8226/drivers/extcon/extcon-max77804k.c

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/*
* max77804k-muic.c - MUIC driver for the Maxim 77804k
*
* Copyright (C) 2012 Samsung Electronics.
* <sukdong.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 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/kernel.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/workqueue.h>
#include <linux/input.h>
#include <linux/mfd/max77804k.h>
#include <linux/mfd/max77804k-private.h>
#ifdef CONFIG_USB_HOST_NOTIFY
#include <linux/host_notify.h>
#endif
#include <linux/wakelock.h>
#include <linux/switch.h>
#ifdef CONFIG_USBHUB_USB3804k
#include <linux/usb3804k.h>
#endif
#include <linux/delay.h>
#include <linux/extcon.h>
#if defined(CONFIG_SWITCH_DUAL_MODEM) || defined(CONFIG_MUIC_RUSTPROOF_UART)
#include <linux/sec_param.h>
#endif
#define DEV_NAME "max77804k-muic"
#if defined(CONFIG_CHARGER_SMB1357)
extern int smb1357_otg_control(int enable);
#endif
#if defined(CONFIG_MUIC_DET_JACK)
#define MICEN_VALUE 1
#else
#define MICEN_VALUE 0
#endif
/* for providing API */
static struct max77804k_muic_info *gInfo;
/* For restore charger interrupt states */
static u8 chg_int_state;
/* MAX77804K MUIC CHG_TYP setting values */
enum {
/* No Valid voltage at VB (Vvb < Vvbdet) */
CHGTYP_NO_VOLTAGE = 0x00,
/* Unknown (D+/D- does not present a valid USB charger signature) */
CHGTYP_USB = 0x01,
/* Charging Downstream Port */
CHGTYP_DOWNSTREAM_PORT = 0x02,
/* Dedicated Charger (D+/D- shorted) */
CHGTYP_DEDICATED_CHGR = 0x03,
/* Special 500mA charger, max current 500mA */
CHGTYP_500MA = 0x04,
/* Special 1A charger, max current 1A */
CHGTYP_1A = 0x05,
/* 3.3V Bias on D+/D- */
CHGTYP_SPECIAL_CHGR = 0x06,
/* Dead Battery Charging, max current 100mA */
CHGTYP_DB_100MA = 0x07,
CHGTYP_MAX,
CHGTYP_INIT,
CHGTYP_MIN = CHGTYP_NO_VOLTAGE
};
#define CHGTYP (CHGTYP_USB | CHGTYP_DOWNSTREAM_PORT |\
CHGTYP_DEDICATED_CHGR | CHGTYP_500MA | CHGTYP_1A)
enum {
ADC_GND = 0x00,
ADC_MHL_OR_SENDEND = 0x01,
ADC_BUTTON_S1 = 0x02,
ADC_BUTTON_S2 = 0x03,
ADC_BUTTON_S3 = 0x04,
ADC_BUTTON_S4 = 0x05,
ADC_BUTTON_S5 = 0x06,
ADC_BUTTON_S6 = 0x07,
ADC_BUTTON_S7 = 0x08,
ADC_BUTTON_S8 = 0x09,
ADC_BUTTON_S11 = 0x0c,
ADC_BUTTON_S12 = 0x0d,
ADC_VZW_USB_DOCK = 0x0e, /* 0x01110 28.7K ohm VZW Dock */
ADC_VZW_INCOMPATIBLE = 0x0f, /* 0x01111 34K ohm VZW Incompatible */
ADC_SMARTDOCK = 0x10, /* 0x10000 40.2K ohm */
ADC_HMT = 0x11, /* 0x10001 49.9K ohm */
ADC_AUDIODOCK = 0x12, /* 0x10010 64.9K ohm */
ADC_LANHUB = 0x13, /* 0x10011 80.07K ohm */
ADC_CHARGING_CABLE = 0x14, /* 0x10100 102K ohm */
ADC_MPOS = 0x15, /* 0x10100 102K ohm */
ADC_UART = 0x16, /* 0x10100 102K ohm */
ADC_CEA936ATYPE1_CHG = 0x17, /* 0x10111 200K ohm */
ADC_JIG_USB_OFF = 0x18, /* 0x11000 255K ohm */
ADC_JIG_USB_ON = 0x19, /* 0x11001 301K ohm */
ADC_DESKDOCK = 0x1a, /* 0x11010 365K ohm */
ADC_CEA936ATYPE2_CHG = 0x1b, /* 0x11011 442K ohm */
ADC_JIG_UART_OFF = 0x1c, /* 0x11100 523K ohm */
ADC_JIG_UART_ON = 0x1d, /* 0x11101 619K ohm */
ADC_CARDOCK = 0x1d, /* 0x11101 619K ohm */
#if defined(CONFIG_MUIC_DET_JACK)
ADC_EARJACK = 0x1e, /* 0x11110 1000 or 1002 ohm */
ADC_DOCK_VOL_DN = 0x0a, /* 0x01010 14.46K ohm */
ADC_DOCK_VOL_UP = 0x0b, /* 0x01011 17.26K ohm */
#else
ADC_PHONE_POWERED = 0x1e, /* 0x11110 1000 or 1002 ohm */
ADC_BUTTON_S9 = 0x0a,
ADC_BUTTON_S10 = 0x0b,
#endif
ADC_OPEN = 0x1f
};
struct max77804k_muic_info {
struct device *dev;
struct max77804k_dev *max77804k;
struct i2c_client *muic;
struct max77804k_muic_data *muic_data;
struct extcon_dev *edev;
int irq_adc;
int irq_vbvolt;
int irq_chgtype;
int mansw;
int path;
int otg_test;
u8 adc_mode;
struct wake_lock muic_wake_lock;
enum cable_type_muic cable_type;
enum extcon_cable_name cable_name;
struct delayed_work init_work;
#if defined(CONFIG_MUIC_DET_JACK)
struct input_dev *input;
struct work_struct earjack_work;
struct work_struct earjackkey_work;
#endif
struct mutex mutex;
#if !defined(CONFIG_MUIC_MAX77804K_SUPPORT_CAR_DOCK)
bool is_factory_start;
#endif /* !CONFIG_MUIC_MAX77804K_SUPORT_CAR_DOCK */
#if defined(CONFIG_MUIC_SUPPORT_RUSTPROOF)
bool uart_en;
#endif
u8 adc;
u8 adc1k;
u8 chgtyp;
u8 vbvolt;
bool is_adc_open_prev;
#if defined(CONFIG_MUIC_DET_JACK)
bool eardetected;
bool earkeypressed;
int init_detect_done;
unsigned int old_keycode;
unsigned int keycode;
#endif
#if defined(CONFIG_MUIC_SUPPORT_MMD_CTL)
bool mmd_en;
#endif
#if defined(CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
unsigned int pre_state;
unsigned int curr_state;
bool lanhub_ta_status;
#endif
};
#if defined(CONFIG_MUIC_DET_JACK)
static struct switch_dev switch_earjack = {
.name = "h2w", /* /sys/class/switch/h2w/state */
};
static struct switch_dev switch_earjackkey = {
.name = "send_end", /* /sys/class/switch/send_end/state */
};
#endif
static const char const *max77804k_path_name[] = {
[PATH_OPEN] = "OPEN",
[PATH_USB_AP] = "USB-AP",
[PATH_AUDIO] = "AUDIO",
[PATH_UART_AP] = "UART-AP",
[PATH_USB_CP] = "USB-CP",
[PATH_UART_CP] = "UART-CP",
NULL,
};
static struct switch_dev switch_uart3 = {
.name = "uart3", /* /sys/class/switch/uart3/state */
};
static int if_muic_info;
static int switch_sel;
static int if_pmic_rev;
int is_cardock;
static bool is_lpm_mode;
EXPORT_SYMBOL(is_cardock);
void max77804k_update_jig_state(struct max77804k_muic_info *info);
/* func : get_if_pmic_inifo
* switch_sel value get from bootloader comand line
* switch_sel data consist 8 bits (xxxxzzzz)
* first 4bits(zzzz) mean path infomation.
* next 4bits(xxxx) mean if pmic version info
*/
static int get_if_pmic_inifo(char *str)
{
get_option(&str, &if_muic_info);
switch_sel = if_muic_info & 0x0f;
if_pmic_rev = (if_muic_info & 0xf0) >> 4;
pr_info("%s %s: switch_sel: %x if_pmic_rev:%x\n",
__FILE__, __func__, switch_sel, if_pmic_rev);
return if_muic_info;
}
__setup("pmic_info=", get_if_pmic_inifo);
int get_switch_sel(void)
{
return switch_sel;
}
static int max77804k_muic_set_comp2_comn1_pass2
(struct max77804k_muic_info *info, int type, int path)
{
/* type 0 == usb, type 1 == uart */
u8 cntl1_val, cntl1_msk;
int ret = 0;
int val;
dev_info(info->dev, "func: %s type: %d path: %d\n",
__func__, type, path);
if (type == 0) {
if (path == PATH_USB_AP) {
info->muic_data->usb_sel = PATH_USB_AP;
val = MAX77804K_MUIC_CTRL1_BIN_1_001;
} else if (path == PATH_USB_CP) {
info->muic_data->usb_sel = PATH_USB_CP;
val = MAX77804K_MUIC_CTRL1_BIN_4_100;
} else {
dev_err(info->dev, "func: %s invalid usb path\n"
, __func__);
return -EINVAL;
}
} else if (type == 1) {
if (path == PATH_UART_AP) {
info->muic_data->uart_sel = PATH_UART_AP;
val = MAX77804K_MUIC_CTRL1_BIN_3_011;
} else if (path == PATH_UART_CP) {
info->muic_data->uart_sel = PATH_UART_CP;
val = MAX77804K_MUIC_CTRL1_BIN_5_101;
} else {
dev_err(info->dev, "func: %s invalid uart path\n"
, __func__);
return -EINVAL;
}
}
#if defined(CONFIG_MUIC_DET_JACK)
else if (type == 2) {
val = MAX77804K_MUIC_CTRL1_BIN_2_010;
}
#endif
else {
dev_err(info->dev, "func: %s invalid path type(%d)\n"
, __func__, type);
return -EINVAL;
}
cntl1_val = (val << COMN1SW_SHIFT) | (val << COMP2SW_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK;
#if defined(CONFIG_MUIC_DET_JACK)
if (type == 2 && info->init_detect_done == INIT_START) {
cntl1_val = cntl1_val | (MICEN_VALUE << MICEN_SHIFT);
cntl1_msk = cntl1_msk | MICEN_MASK;
}
#endif
max77804k_update_reg(info->muic, MAX77804K_MUIC_REG_CTRL1, cntl1_val,
cntl1_msk);
return ret;
}
static int max77804k_muic_set_uart_sel_pass2
(struct max77804k_muic_info *info, int path)
{
int ret = 0;
ret = max77804k_muic_set_comp2_comn1_pass2(info, 1/*uart*/, path);
return ret;
}
#if defined(CONFIG_MUIC_DET_JACK)
static int max77804k_muic_set_audio_path_pass2(struct max77804k_muic_info *info, int path)
{
int ret = 0;
ret = max77804k_muic_set_comp2_comn1_pass2(info, 2/*audio*/, path);
return ret;
}
#endif
static ssize_t max77804k_muic_show_usb_state(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
dev_info(info->dev, "func:%s info->cable_name:[%s]\n",
__func__, extcon_cable_name[info->cable_name]);
switch (info->cable_name) {
case EXTCON_USB:
case EXTCON_JIG_USBOFF:
case EXTCON_JIG_USBON:
return sprintf(buf, "USB_STATE_CONFIGURED\n");
default:
break;
}
return sprintf(buf, "USB_STATE_NOTCONFIGURED\n");
}
static ssize_t max77804k_muic_show_attached_dev(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
dev_info(info->dev, "func:%s info->cable_name:[%s]\n",
__func__, extcon_cable_name[info->cable_name]);
switch (info->cable_name) {
case EXTCON_NONE:
return sprintf(buf, "No cable\n");
case EXTCON_USB:
return sprintf(buf, "USB\n");
case EXTCON_USB_HOST:
return sprintf(buf, "OTG\n");
case EXTCON_USB_HOST_5V:
return sprintf(buf, "OTG Test\n");
case EXTCON_TA:
return sprintf(buf, "TA\n");
case EXTCON_UNDEFINED_CHARGER:
return sprintf(buf, "Undefined TA\n");
case EXTCON_CEA936_CHG:
return sprintf(buf, "CEA936 TA\n");
case EXTCON_CHARGE_DOWNSTREAM:
return sprintf(buf, "CDP\n");
case EXTCON_DESKDOCK:
return sprintf(buf, "Desk Dock\n");
case EXTCON_DESKDOCK_VB:
return sprintf(buf, "Desk Dock with VB\n");
case EXTCON_SMARTDOCK:
return sprintf(buf, "Smart Dock\n");
case EXTCON_SMARTDOCK_TA:
return sprintf(buf, "Smart Dock with TA\n");
case EXTCON_SMARTDOCK_USB:
return sprintf(buf, "Smart Dock with USB\n");
case EXTCON_AUDIODOCK:
return sprintf(buf, "Audio Dock\n");
case EXTCON_CARDOCK:
return sprintf(buf, "Car Dock\n");
case EXTCON_JIG_UARTOFF:
return sprintf(buf, "JIG UART OFF\n");
case EXTCON_JIG_UARTOFF_VB:
return sprintf(buf, "JIG UART OFF/VB\n");
case EXTCON_JIG_UARTON:
return sprintf(buf, "JIG UART ON\n");
case EXTCON_JIG_USBOFF:
return sprintf(buf, "JIG USB OFF\n");
case EXTCON_JIG_USBON:
return sprintf(buf, "JIG USB ON\n");
case EXTCON_MHL:
return sprintf(buf, "mHL\n");
case EXTCON_MHL_VB:
return sprintf(buf, "mHL charging\n");
case EXTCON_INCOMPATIBLE:
return sprintf(buf, "Incompatible TA\n");
case EXTCON_CHARGING_CABLE:
return sprintf(buf, "Charging Cable\n");
#if defined(CONFIG_MUIC_MAX77804K_SUPPORT_HMT_DETECTION)
case EXTCON_HMT:
return sprintf(buf, "HMT\n");
#endif
#if defined(CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
case EXTCON_LANHUB:
return sprintf(buf, "Lanhub\n");
case EXTCON_LANHUB_TA:
return sprintf(buf, "Lanhub with TA\n");
#endif
#if defined(CONFIG_MUIC_DET_JACK)
case EXTCON_EARJACK:
return sprintf(buf, "Earjack\n");
#endif
default:
break;
}
return sprintf(buf, "UNKNOWN\n");
}
static ssize_t max77804k_muic_show_manualsw(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
dev_info(info->dev, "func:%s ap(0),cp(1),vps(2)usb_sel:%d\n",
__func__, info->muic_data->usb_sel);/*For debuging*/
switch (info->muic_data->usb_sel) {
case PATH_USB_AP:
return sprintf(buf, "PDA\n");
case PATH_USB_CP:
return sprintf(buf, "MODEM\n");
case PATH_AUDIO:
return sprintf(buf, "Audio\n");
default:
break;
}
return sprintf(buf, "UNKNOWN\n");
}
static int max77804k_muic_set_usb_path(struct max77804k_muic_info *info,
int path);
static ssize_t max77804k_muic_set_manualsw(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
dev_info(info->dev, "func:%s buf:%s,count:%d\n", __func__, buf, count);
if (!strncasecmp(buf, "PDA", 3)) {
info->muic_data->usb_sel = PATH_USB_AP;
dev_info(info->dev, "%s: PATH_USB_AP\n", __func__);
} else if (!strncasecmp(buf, "MODEM", 5)) {
info->muic_data->usb_sel = PATH_USB_CP;
dev_info(info->dev, "%s: PATH_USB_CP\n", __func__);
max77804k_muic_set_usb_path(info, PATH_USB_CP);
} else
dev_warn(info->dev, "%s: Wrong command\n", __func__);
return count;
}
static ssize_t max77804k_muic_show_adc(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
int ret;
u8 val;
ret = max77804k_read_reg(info->muic, MAX77804K_MUIC_REG_STATUS1, &val);
dev_info(info->dev, "func:%s ret:%d val:%x\n", __func__, ret, val);
if (ret) {
dev_err(info->dev, "%s: fail to read muic reg\n", __func__);
return sprintf(buf, "UNKNOWN\n");
}
return sprintf(buf, "%x\n", (val & STATUS1_ADC_MASK));
}
static ssize_t max77804k_muic_show_audio_path(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
int ret;
u8 val;
ret = max77804k_read_reg(info->muic, MAX77804K_MUIC_REG_CTRL1, &val);
dev_info(info->dev, "func:%s ret:%d val:%x\n", __func__, ret, val);
if (ret) {
dev_err(info->dev, "%s: fail to read muic reg\n", __func__);
return sprintf(buf, "UNKNOWN\n");
}
return sprintf(buf, "%x\n", val);
}
static ssize_t max77804k_muic_set_audio_path(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->muic;
u8 cntl1_val, cntl1_msk;
u8 val;
dev_info(info->dev, "func:%s buf:%s\n", __func__, buf);
if (!strncmp(buf, "0", 1))
val = MAX77804K_MUIC_CTRL1_BIN_0_000;
else if (!strncmp(buf, "1", 1))
val = MAX77804K_MUIC_CTRL1_BIN_2_010;
else {
dev_warn(info->dev, "%s: Wrong command\n", __func__);
return count;
}
cntl1_val = (val << COMN1SW_SHIFT) | (val << COMP2SW_SHIFT) |
(MICEN_VALUE << MICEN_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK | MICEN_MASK;
max77804k_update_reg(client, MAX77804K_MUIC_REG_CTRL1, cntl1_val,
cntl1_msk);
dev_info(info->dev, "MUIC cntl1_val:%x, cntl1_msk:%x\n", cntl1_val,
cntl1_msk);
cntl1_val = MAX77804K_MUIC_CTRL1_BIN_0_000;
max77804k_read_reg(client, MAX77804K_MUIC_REG_CTRL1, &cntl1_val);
dev_info(info->dev, "%s: CNTL1(0x%02x)\n", __func__, cntl1_val);
return count;
}
static ssize_t max77804k_muic_show_otg_test(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
int ret;
u8 val;
ret = max77804k_read_reg(info->muic, MAX77804K_MUIC_REG_CDETCTRL1, &val);
dev_info(info->dev, "func:%s ret:%d val:%x buf%s\n",
__func__, ret, val, buf);
if (ret) {
dev_err(info->dev, "%s: fail to read muic reg\n", __func__);
return sprintf(buf, "UNKNOWN\n");
}
val &= CHGDETEN_MASK;
return sprintf(buf, "%x\n", val);
}
static ssize_t max77804k_muic_set_otg_test(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->muic;
u8 val;
dev_info(info->dev, "func:%s buf:%s\n", __func__, buf);
if (!strncmp(buf, "0", 1))
val = 0;
else if (!strncmp(buf, "1", 1))
val = 1;
else {
dev_warn(info->dev, "%s: Wrong command\n", __func__);
return count;
}
max77804k_update_reg(client, MAX77804K_MUIC_REG_CDETCTRL1,
val << CHGDETEN_SHIFT, CHGDETEN_MASK);
val = 0;
max77804k_read_reg(client, MAX77804K_MUIC_REG_CDETCTRL1, &val);
dev_info(info->dev, "%s: CDETCTRL(0x%02x)\n", __func__, val);
return count;
}
#if defined(CONFIG_ADC_ONESHOT)
static int max77804k_muic_set_adcmode(struct max77804k_muic_info *info,
int value)
{
int ret;
u8 val;
if (info->adc_mode == value) {
pr_info("%s: same value:%02x\n", __func__, value);
return 1;
}
dev_info(info->dev,"value:%02x\n", value);
if (!info->muic) {
dev_err(info->dev, "%s: no muic i2c client\n", __func__);
return -EINVAL;
}
val = value << CTRL4_ADCMODE_SHIFT;
dev_info(info->dev, "ADC MODE(0x%02x)\n", val);
ret = max77804k_update_reg(info->muic, MAX77804K_MUIC_REG_CTRL4, val,
CTRL4_ADCMODE_MASK);
if (ret < 0) {
dev_err(info->dev, "%s: fail to update reg\n", __func__);
return -EINVAL;
}
info->adc_mode = value;
return 0;
}
#endif
static void max77804k_muic_set_adcdbset(struct max77804k_muic_info *info,
int value)
{
int ret;
u8 val;
dev_info(info->dev, "func:%s value:%x\n", __func__, value);
if (value > 3) {
dev_err(info->dev, "%s: invalid value(%x)\n", __func__, value);
return;
}
if (!info->muic) {
dev_err(info->dev, "%s: no muic i2c client\n", __func__);
return;
}
val = value << CTRL4_ADCDBSET_SHIFT;
dev_info(info->dev, "%s: ADCDBSET(0x%02x)\n", __func__, val);
ret = max77804k_update_reg(info->muic, MAX77804K_MUIC_REG_CTRL4, val,
CTRL4_ADCDBSET_MASK);
if (ret < 0)
dev_err(info->dev, "%s: fail to update reg\n", __func__);
}
static ssize_t max77804k_muic_show_adc_debounce_time(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
int ret;
u8 val;
dev_info(info->dev, "func:%s buf:%s\n", __func__, buf);
if (!info->muic)
return sprintf(buf, "No I2C client\n");
ret = max77804k_read_reg(info->muic, MAX77804K_MUIC_REG_CTRL4, &val);
if (ret) {
dev_err(info->dev, "%s: fail to read muic reg\n", __func__);
return sprintf(buf, "UNKNOWN\n");
}
val &= CTRL4_ADCDBSET_MASK;
val = val >> CTRL4_ADCDBSET_SHIFT;
dev_info(info->dev, "func:%s val:%x\n", __func__, val);
return sprintf(buf, "%x\n", val);
}
#if defined(CONFIG_MUIC_SUPPORT_RUSTPROOF)
static ssize_t max77804k_muic_set_uart_en(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
dev_info(info->dev, "%s, buf : %s\n", __func__, buf);
if (!strncasecmp(buf, "0", 1))
info->uart_en = false;
else if (!strncasecmp(buf, "1", 1))
info->uart_en = true;
else
dev_warn(info->dev, "%s: Wrong command\n", __func__);
return count;
}
static ssize_t max77804k_muic_show_uart_en(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
dev_info(info->dev, "func: UART is %s %s\n", __func__,
((info->uart_en)?"ENABLED":"DISABLED"));/*For debuging*/
if(info->uart_en)
return sprintf(buf, "1\n"); /* Enabled */
else
return sprintf(buf, "0\n"); /* Disabled */
}
#endif
static ssize_t max77804k_muic_set_uart_sel(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
dev_info(info->dev, "%s, buf : %s\n",__func__,buf);
if (!strncasecmp(buf, "AP", 2)) {
int ret = max77804k_muic_set_uart_sel_pass2
(info, PATH_UART_AP);
if (ret >= 0){
info->muic_data->uart_sel = PATH_UART_AP;
dev_info(info->dev, "UART PATH(CP:0, AP:1):%d\n",
info->muic_data->uart_sel);
}else
dev_err(info->dev, "%s: Change(AP) fail!!", __func__);
#if defined(CONFIG_SWITCH_DUAL_MODEM)
} else if (!strncasecmp(buf, "CP2", 3)) {
int ret = max77804k_muic_set_uart_sel_pass2
(info, PATH_UART_CP);
if (ret >= 0){
info->muic_data->uart_sel = PATH_UART_CP;
dev_info(info->dev, "UART PATH(CP:0, AP:1):%d\n",
info->muic_data->uart_sel);
}else
dev_err(info->dev, "%s: Change(CP) fail!!", __func__);
#endif
} else if (!strncasecmp(buf, "CP", 2)) {
int ret = max77804k_muic_set_uart_sel_pass2
(info, PATH_UART_CP);
if (ret >= 0){
info->muic_data->uart_sel = PATH_UART_CP;
dev_info(info->dev, "UART PATH(CP:0, AP:1):%d\n",
info->muic_data->uart_sel);
}else
dev_err(info->dev, "%s: Change(CP) fail!!", __func__);
} else {
dev_warn(info->dev, "%s: Wrong command\n", __func__);
}
return count;
}
static ssize_t max77804k_muic_show_uart_sel(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
dev_info(info->dev, "func:%s cp(0),ap(1)usb_sel:%d\n",
__func__, info->muic_data->uart_sel);/*For debuging*/
switch (info->muic_data->uart_sel) {
case PATH_UART_AP:
return sprintf(buf, "AP\n");
break;
case PATH_UART_CP:
#if defined(CONFIG_SWITCH_DUAL_MODEM)
return sprintf(buf, "CP2\n");
#else
return sprintf(buf, "CP\n");
#endif
break;
default:
break;
}
return sprintf(buf, "UNKNOWN\n");
}
static ssize_t max77804k_muic_show_charger_type(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
u8 adc, status;
int ret;
ret = max77804k_read_reg(info->muic, MAX77804K_MUIC_REG_STATUS1, &status);
adc = status & STATUS1_ADC_MASK;
/* SYSFS Node : chg_type
* SYSFS State
* 0 : Dedicated Charger
* 1 : Non-Dedicated Charger
* 2 : Cigar Jack
*/
switch (adc){
case ADC_MHL_OR_SENDEND:
case ADC_VZW_USB_DOCK:
case ADC_SMARTDOCK:
case ADC_AUDIODOCK:
case ADC_DESKDOCK:
case ADC_CARDOCK:
case ADC_OPEN:
dev_info(info->dev, "%s: Dedicated Charger State\n", __func__);
return snprintf(buf, 4, "%d\n", 0);
break;
case ADC_CEA936ATYPE1_CHG:
dev_info(info->dev, "%s: Undedicated Charger State\n", __func__);
return snprintf(buf, 4, "%d\n", 1);
break;
case ADC_CEA936ATYPE2_CHG:
dev_info(info->dev, "%s: Dedicated Charger State\n", __func__);
return snprintf(buf, 4, "%d\n", 2);
break;
default:
dev_info(info->dev, "%s: Undeclared State\n", __func__);
break;
}
return snprintf(buf, 9, "%s\n", "UNKNOWN");
}
#if defined(CONFIG_MUIC_SUPPORT_MMD_CTL)
static ssize_t max77804k_muic_show_mmd_en(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
/* mmd_en
* -> ture : 1 / false : 0
*/
if (info->mmd_en)
return sprintf(buf, "%d\n", 1);
else
return sprintf(buf, "%d\n", 0);
}
static ssize_t max77804k_muic_set_mmd_en(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
pr_info("%s:%s buf:%s\n", DEV_NAME, __func__, buf);
if (!strncmp(buf, "1", 1))
info->mmd_en = true;
else
info->mmd_en = false;
pr_info("%s:%s Multimedia dock is %s\n",
DEV_NAME, __func__, info->mmd_en?"Enabled":"Disabled");
return count;
}
#endif
#if !defined(CONFIG_MUIC_MAX77804K_SUPPORT_CAR_DOCK)
static ssize_t max77804k_muic_show_apo_factory(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
const char *mode;
/* true: Factory mode, false: not Factory mode */
if (info->is_factory_start)
mode = "FACTORY_MODE";
else
mode = "NOT_FACTORY_MODE";
pr_info("%s:%s apo factory=%s\n", DEV_NAME, __func__, mode);
return sprintf(buf, "%s\n", mode);
}
static ssize_t max77804k_muic_set_apo_factory(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
const char *mode;
pr_info("%s:%s buf:%s\n", DEV_NAME, __func__, buf);
/* "FACTORY_START": factory mode */
if (!strncmp(buf, "FACTORY_START", 13)) {
info->is_factory_start = true;
mode = "FACTORY_MODE";
} else {
pr_warn("%s:%s Wrong command\n", DEV_NAME, __func__);
return count;
}
pr_info("%s:%s apo factory=%s\n", DEV_NAME, __func__, mode);
return count;
}
#endif /* !CONFIG_MUIC_MAX77804K_SUPPORT_CAR_DOCK */
#if defined(CONFIG_MUIC_DET_JACK)
static ssize_t key_state_onoff_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
int value = 0;
if (info->earkeypressed && info->keycode == KEY_MEDIA)
value = 1;
return snprintf(buf, 4, "%d\n", value);
}
static ssize_t earjack_state_onoff_show(struct device *dev, struct device_attribute *attr, char *buf)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
int value = 0;
if (info->eardetected == true)
value = 1;
return snprintf(buf, 4, "%d\n", value);
}
#endif
#if !defined(CONFIG_MUIC_MAX77804K_SUPPORT_CAR_DOCK)
static DEVICE_ATTR(apo_factory, 0664,
max77804k_muic_show_apo_factory,
max77804k_muic_set_apo_factory);
#endif /* !CONFIG_MUIC_MAX77804K_SUPPORT_CAR_DOCK */
#if defined(CONFIG_MUIC_SUPPORT_MMD_CTL)
static DEVICE_ATTR(mmd_en, 0664, max77804k_muic_show_mmd_en, max77804k_muic_set_mmd_en);
#endif
static DEVICE_ATTR(chg_type, 0664, max77804k_muic_show_charger_type, NULL);
static DEVICE_ATTR(uart_sel, 0664, max77804k_muic_show_uart_sel,
max77804k_muic_set_uart_sel);
#if defined(CONFIG_MUIC_SUPPORT_RUSTPROOF)
static DEVICE_ATTR(uart_en, 0664, max77804k_muic_show_uart_en,
max77804k_muic_set_uart_en);
#endif
static DEVICE_ATTR(usb_state, S_IRUGO, max77804k_muic_show_usb_state, NULL);
static DEVICE_ATTR(attached_dev, S_IRUGO, max77804k_muic_show_attached_dev, NULL);
static DEVICE_ATTR(usb_sel, 0664,
max77804k_muic_show_manualsw, max77804k_muic_set_manualsw);
static DEVICE_ATTR(adc, S_IRUGO, max77804k_muic_show_adc, NULL);
static DEVICE_ATTR(audio_path, 0664,
max77804k_muic_show_audio_path, max77804k_muic_set_audio_path);
static DEVICE_ATTR(otg_test, 0664,
max77804k_muic_show_otg_test, max77804k_muic_set_otg_test);
static DEVICE_ATTR(adc_debounce_time, 0664,
max77804k_muic_show_adc_debounce_time,
NULL);
#if defined(CONFIG_MUIC_DET_JACK)
static DEVICE_ATTR(key_state, 0444,
key_state_onoff_show, NULL);
static DEVICE_ATTR(state, 0444,
earjack_state_onoff_show, NULL);
#endif
static struct attribute *max77804k_muic_attributes[] = {
&dev_attr_uart_sel.attr,
#if defined(CONFIG_MUIC_SUPPORT_RUSTPROOF)
&dev_attr_uart_en.attr,
#endif
&dev_attr_usb_state.attr,
&dev_attr_attached_dev.attr,
&dev_attr_usb_sel.attr,
&dev_attr_adc.attr,
&dev_attr_audio_path.attr,
&dev_attr_otg_test.attr,
&dev_attr_adc_debounce_time.attr,
&dev_attr_chg_type.attr,
#if defined(CONFIG_MUIC_SUPPORT_MMD_CTL)
&dev_attr_mmd_en.attr,
#endif
#if !defined(CONFIG_MUIC_MAX77804K_SUPPORT_CAR_DOCK)
&dev_attr_apo_factory.attr,
#endif /* !CONFIG_MUIC_MAX77804K_SUPPORT_CAR_DOCK */
NULL
};
static void max77804k_muic_uart_uevent(int state)
{
#if !defined(CONFIG_MUIC_DET_JACK)
if (switch_uart3.dev != NULL) {
switch_set_state(&switch_uart3, state);
dev_info(gInfo->dev, "%s: state:%d\n", __func__, state);
}
#endif
}
static const struct attribute_group max77804k_muic_group = {
.attrs = max77804k_muic_attributes,
};
static int max77804k_muic_set_usb_path(struct max77804k_muic_info *info, int path)
{
struct i2c_client *client = info->muic;
int ret;
u8 cntl1_val, cntl1_msk;
int val;
dev_info(info->dev, "func:%s path:%d, cable_name:%d\n", __func__, path, info->cable_name);
ret = max77804k_muic_set_safeout(path);
if (ret) {
dev_err(info->dev, "%s: fail to set safout!\n",
__func__);
return ret;
}
switch (path) {
case PATH_USB_AP:
dev_info(info->dev, "%s: PATH_USB_AP\n", __func__);
val = MAX77804K_MUIC_CTRL1_BIN_1_001;
cntl1_val = (val << COMN1SW_SHIFT) | (val << COMP2SW_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK;
break;
case PATH_AUDIO:
dev_info(info->dev, "%s: PATH_AUDIO\n", __func__);
/* SL1, SR2 */
cntl1_val = (MAX77804K_MUIC_CTRL1_BIN_2_010 << COMN1SW_SHIFT)
| (MAX77804K_MUIC_CTRL1_BIN_2_010 << COMP2SW_SHIFT) |
(MICEN_VALUE << MICEN_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK | MICEN_MASK;
break;
case PATH_USB_CP:
dev_info(info->dev, "%s: PATH_USB_CP\n", __func__);
val = MAX77804K_MUIC_CTRL1_BIN_4_100;
cntl1_val = (val << COMN1SW_SHIFT) | (val << COMP2SW_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK;
break;
case PATH_OPEN:
dev_info(info->dev, "%s: PATH_OPEN\n", __func__);
val = MAX77804K_MUIC_CTRL1_BIN_0_000;
cntl1_val = (val << COMN1SW_SHIFT) | (val << COMP2SW_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK;
break;
default:
dev_warn(info->dev, "%s: invalid path(%d)\n", __func__, path);
return -EINVAL;
}
dev_info(info->dev, "%s: Set manual path\n", __func__);
if (info->cable_name != EXTCON_CARDOCK)
max77804k_update_reg(client, MAX77804K_MUIC_REG_CTRL1, cntl1_val,
cntl1_msk);
max77804k_update_reg(client, MAX77804K_MUIC_REG_CTRL2,
CTRL2_CPEn1_LOWPWD0,
CTRL2_CPEn_MASK | CTRL2_LOWPWD_MASK);
cntl1_val = MAX77804K_MUIC_CTRL1_BIN_0_000;
max77804k_read_reg(client, MAX77804K_MUIC_REG_CTRL1, &cntl1_val);
dev_info(info->dev, "%s: CNTL1(0x%02x)\n", __func__, cntl1_val);
cntl1_val = MAX77804K_MUIC_CTRL1_BIN_0_000;
max77804k_read_reg(client, MAX77804K_MUIC_REG_CTRL2, &cntl1_val);
dev_info(info->dev, "%s: CNTL2(0x%02x)\n", __func__, cntl1_val);
sysfs_notify(&switch_dev->kobj, NULL, "usb_sel");
return 0;
}
void max77804k_muic_send_event(int val)
{
char *envp[2];
if (val == 0)
envp[0] = "USB_CONNECTION=READY";
else
envp[0] = "USB_CONNECTION=DISCONNECTED";
envp[1] = NULL;
dev_info(gInfo->dev, "%s\n", __func__);
kobject_uevent_env(&gInfo->dev->kobj, KOBJ_CHANGE, envp);
}
extern unsigned int system_rev;
#if defined(CONFIG_MUIC_DET_JACK)
static void max77804k_muic_earjack_detect_workfunc(struct work_struct *work)
{
struct max77804k_muic_info *info = container_of(work, struct max77804k_muic_info, earjack_work);
dev_info(info->dev, "%s:EarJack Work eardetected= %d\n", __func__, info->eardetected);
/* send event jack type to upper layer */
switch_set_state(&switch_earjack, info->eardetected);
return;
}
static int max77804k_muic_earjack_detect(struct max77804k_muic_info *info, bool attached)
{
dev_info(info->dev, "%s:EarJack attached= %d\n", __func__,attached);
if (info->init_detect_done == NOT_INIT)
return 0;
if (info->cable_type == CABLE_TYPE_EARJACK_MUIC) {
dev_info(info->dev, "%s: duplicated(EarJack)\n", __func__);
return 0;
}
info->eardetected = attached ? true : false;
schedule_work(&info->earjack_work);
max77804k_muic_set_audio_path_pass2(info, 0);
return 0;
}
static void max77804k_muic_earjack_key_detect_workfunc(struct work_struct *work)
{
struct max77804k_muic_info *info = container_of(work, struct max77804k_muic_info, earjackkey_work);
dev_info(info->dev, "%s:EarJackKey Work earkeypressed= %d\n", __func__, info->earkeypressed);
/* send event sendend key type to upper layer */
switch_set_state(&switch_earjackkey, info->earkeypressed);
return;
}
static int max77804k_muic_earjack_key_detect(struct max77804k_muic_info *info, int adc)
{
unsigned int code;
dev_info(info->dev, "%s:EarJackKey\n", __func__);
if (info->earkeypressed) {
switch (adc) {
case ADC_MHL_OR_SENDEND:
code = KEY_MEDIA;
info->old_keycode = KEY_MEDIA;
break;
case ADC_DOCK_VOL_UP:
code = KEY_VOLUMEUP;
info->old_keycode = KEY_VOLUMEUP;
break;
case ADC_DOCK_VOL_DN:
code = KEY_VOLUMEDOWN;
info->old_keycode = KEY_VOLUMEDOWN;
break;
default:
dev_info(info->dev, "%s: should not reach here(0x%x)\n", __func__, adc);
return 0;
}
info->keycode = code;
}
else {
code = info->old_keycode;
}
/* send event sendend key type to upper layer */
input_event(info->input, EV_KEY, code, info->earkeypressed);
input_sync(info->input);
schedule_work(&info->earjackkey_work);
return 0;
}
#endif
void max77804k_otg_control(struct max77804k_muic_info *info, int enable)
{
u8 int_mask, cdetctrl1, chg_cnfg_00;
#if defined(CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
u8 val;
#endif
pr_info("%s: enable(%d)\n", __func__, enable);
if (enable) {
/* disable charger interrupt */
max77804k_read_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_INT_MASK, &int_mask);
chg_int_state = int_mask;
int_mask |= (1 << 4); /* disable chgin intr */
int_mask |= (1 << 6); /* disable chg */
int_mask &= ~(1 << 0); /* enable byp intr */
max77804k_write_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_INT_MASK, int_mask);
/* disable charger detection */
max77804k_read_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, &cdetctrl1);
cdetctrl1 &= ~(1 << 0);
max77804k_write_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, cdetctrl1);
#if defined(CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
if(info->lanhub_ta_status == false) {
pr_info("%s: adc: %d info->lanhub_ta_status = %d \n",__func__,info->adc, info->lanhub_ta_status);
/* OTG on, boost on, DIS_MUIC_CTRL=1 */
max77804k_update_reg(info->max77804k->i2c, MAX77804K_CHG_REG_CHG_CNFG_00,
CHG_CNFG_00_OTG_CTRL, CHG_CNFG_00_OTG_CTRL);
} else if (info->lanhub_ta_status == true) {
/* OTG on, boost on, CHGIN on, EN_MUIC_CTRL=1 */
pr_info("%s: adc: %d info->lanhub_ta_status = %d \n",__func__,info->adc, info->lanhub_ta_status);
max77804k_read_reg(info->max77804k->i2c, MAX77804K_CHG_REG_CHG_CNFG_00, &val);
val &= 0x0F;
max77804k_write_reg(info->max77804k->i2c, MAX77804K_CHG_REG_CHG_CNFG_00, val);
}
#else
/* OTG on, boost on, DIS_MUIC_CTRL=1 */
max77804k_update_reg(info->max77804k->i2c, MAX77804K_CHG_REG_CHG_CNFG_00,
CHG_CNFG_00_OTG_CTRL, CHG_CNFG_00_OTG_CTRL);
#endif
max77804k_read_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_CNFG_00, &chg_cnfg_00);
/* Update CHG_CNFG_11 to 0x50(5V) */
max77804k_write_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_CNFG_11, 0x50);
} else {
/* OTG off, boost off, (buck on),
DIS_MUIC_CTRL = 0 unless CHG_ENA = 1 */
max77804k_update_reg(info->max77804k->i2c, MAX77804K_CHG_REG_CHG_CNFG_00,
0x00, CHG_CNFG_00_OTG_CTRL);
max77804k_read_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_CNFG_00, &chg_cnfg_00);
/* Update CHG_CNFG_11 to 0x00(3V) */
max77804k_write_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_CNFG_11, 0x00);
mdelay(50);
/* [MAX77804] Workaround to get rid of reading dummy(0x00) */
/* disable charger detection again */
max77804k_read_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, &cdetctrl1);
cdetctrl1 &= ~(1 << 0);
max77804k_write_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, cdetctrl1);
mdelay(10);
/* enable charger detection */
max77804k_read_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, &cdetctrl1);
cdetctrl1 |= (1 << 0);
max77804k_write_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, cdetctrl1);
/* enable charger interrupt */
max77804k_write_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_INT_MASK, chg_int_state);
max77804k_read_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_INT_MASK, &int_mask);
}
pr_info("%s: INT_MASK(0x%x), CDETCTRL1(0x%x), CHG_CNFG_00(0x%x)\n",
__func__, int_mask, cdetctrl1, chg_cnfg_00);
}
#if defined(CONFIG_CHARGER_SMB1357)
void max77804k_muic_only_otg_control(struct max77804k_muic_info *info, int enable)
{
u8 cdetctrl1;
pr_info("%s: enable(%d)\n", __func__, enable);
if (enable) {
/* disable charger detection */
max77804k_read_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, &cdetctrl1);
cdetctrl1 &= ~(1 << 0);
max77804k_write_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, cdetctrl1);
} else {
/* enable charger detection */
max77804k_read_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, &cdetctrl1);
cdetctrl1 |= (1 << 0);
max77804k_write_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, cdetctrl1);
}
pr_info("%s: CDETCTRL1(0x%x)\n", __func__, cdetctrl1);
}
#endif
void max77804k_powered_otg_control(struct max77804k_muic_info *info, int enable)
{
pr_info("%s: enable(%d)\n", __func__, enable);
if (enable) {
/* OTG on, boost on */
max77804k_write_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_CNFG_00, 0x05);
max77804k_write_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_CNFG_02, 0x0E);
/* Update CHG_CNFG_11 to 0x50(5V) */
max77804k_write_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_CNFG_11, 0x50);
} else {
/* OTG off, boost off, (buck on) */
max77804k_write_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_CNFG_00, 0x04);
/* Update CHG_CNFG_11 to 0x00(3V) */
max77804k_write_reg(info->max77804k->i2c,
MAX77804K_CHG_REG_CHG_CNFG_11, 0x00);
}
}
/* use in mach for otg */
int muic_otg_control(int enable)
{
pr_debug("%s: enable(%d)\n", __func__, enable);
gInfo->otg_test = enable;
#if defined(CONFIG_CHARGER_SMB1357)
max77804k_muic_only_otg_control(gInfo, enable);
smb1357_otg_control(enable);
#else
max77804k_otg_control(gInfo, enable);
#endif
return 0;
}
/* use in mach for powered-otg */
void powered_otg_control(int enable)
{
pr_debug("%s: enable(%d)\n", __func__, enable);
max77804k_powered_otg_control(gInfo, enable);
}
#if 0
static void max77804k_muic_set_cddelay(struct max77804k_muic_info *info)
{
u8 cdetctrl1;
int ret;
ret = max77804k_read_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, &cdetctrl1);
pr_info("%s:%s read CDETCTRL1=0x%x, ret=%d\n", DEV_NAME, __func__,
cdetctrl1, ret);
if ((cdetctrl1 & 0x10) == 0x10) {
pr_info("%s:%s CDDelay already setted, return\n", DEV_NAME,
__func__);
return;
}
cdetctrl1 |= 0x10;
ret = max77804k_write_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, cdetctrl1);
pr_info("%s:%s write CDETCTRL1=0x%x, ret=%d\n", DEV_NAME,
__func__, cdetctrl1, ret);
}
static void max77804k_muic_clear_cddelay(struct max77804k_muic_info *info)
{
u8 cdetctrl1;
int ret;
ret = max77804k_read_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, &cdetctrl1);
pr_info("%s:%s read CDETCTRL1=0x%x, ret=%d\n", DEV_NAME, __func__,
cdetctrl1, ret);
if ((cdetctrl1 & 0x10) == 0x0) {
pr_info("%s:%s CDDelay already cleared, return\n", DEV_NAME,
__func__);
return;
}
cdetctrl1 &= ~(0x10);
ret = max77804k_write_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, cdetctrl1);
pr_info("%s:%s write CDETCTRL1=0x%x, ret=%d\n", DEV_NAME,
__func__, cdetctrl1, ret);
}
#endif
static int max77804k_muic_set_path(struct max77804k_muic_info *info, int path)
{
int ret;
u8 ctrl1_val, ctrl1_msk;
u8 ctrl2_val, ctrl2_msk;
int val;
dev_info(info->dev, "set path to (%d)\n", path);
ret = max77804k_muic_set_safeout(path);
if (ret) {
dev_err(info->dev, "fail to set safout!(%d)\n", ret);
return ret;
}
if ((info->max77804k->pmic_rev == MAX77804K_REV_PASS1) &&
((path == PATH_USB_CP) || (path == PATH_UART_CP))) {
dev_info(info->dev,
"PASS1 doesn't support manual path to CP.\n");
if (path == PATH_USB_CP)
path = PATH_USB_AP;
else if (path == PATH_UART_CP)
path = PATH_UART_AP;
}
switch (path) {
case PATH_OPEN:
val = MAX77804K_MUIC_CTRL1_BIN_0_000;
break;
case PATH_USB_AP:
val = MAX77804K_MUIC_CTRL1_BIN_1_001;
break;
case PATH_AUDIO:
val = MAX77804K_MUIC_CTRL1_BIN_2_010;
break;
case PATH_UART_AP:
val = MAX77804K_MUIC_CTRL1_BIN_3_011;
break;
case PATH_USB_CP:
val = MAX77804K_MUIC_CTRL1_BIN_4_100;
break;
case PATH_UART_CP:
val = MAX77804K_MUIC_CTRL1_BIN_5_101;
break;
default:
dev_warn(info->dev, "invalid path(%d)\n", path);
return -EINVAL;
}
ctrl1_val = (val << COMN1SW_SHIFT) | (val << COMP2SW_SHIFT);
ctrl1_msk = COMN1SW_MASK | COMP2SW_MASK;
if (path == PATH_AUDIO) {
ctrl1_val |= MICEN_VALUE << MICEN_SHIFT;
ctrl1_msk |= MICEN_MASK;
}
max77804k_update_reg(info->muic,
MAX77804K_MUIC_REG_CTRL1, ctrl1_val, ctrl1_msk);
ctrl2_val = CTRL2_CPEn1_LOWPWD0;
ctrl2_msk = CTRL2_CPEn_MASK | CTRL2_LOWPWD_MASK;
max77804k_update_reg(info->muic,
MAX77804K_MUIC_REG_CTRL2, ctrl2_val, ctrl2_msk);
return 0;
}
#if defined(CONFIG_MUIC_MAX77804K_SUPPORT_HMT_DETECTION)
#define MAX77804K_PATH_FIX_USB_MASK \
(BIT(EXTCON_USB_HOST) | BIT(EXTCON_SMARTDOCK) \
| BIT(EXTCON_AUDIODOCK) | BIT(EXTCON_HMT))
#else
#define MAX77804K_PATH_FIX_USB_MASK \
(BIT(EXTCON_USB_HOST) | BIT(EXTCON_SMARTDOCK) | BIT(EXTCON_AUDIODOCK))
#endif
#define MAX77804K_PATH_USB_MASK \
(BIT(EXTCON_USB) | BIT(EXTCON_JIG_USBOFF) | BIT(EXTCON_JIG_USBON))
#if defined(CONFIG_MUIC_DET_JACK)
#define MAX77804K_PATH_AUDIO_MASK \
(BIT(EXTCON_DESKDOCK) | BIT(EXTCON_CARDOCK) | BIT(EXTCON_EARJACK))
#else
#define MAX77804K_PATH_AUDIO_MASK \
(BIT(EXTCON_DESKDOCK) | BIT(EXTCON_CARDOCK))
#endif
#define MAX77804K_PATH_UART_MASK \
(BIT(EXTCON_JIG_UARTOFF) | BIT(EXTCON_JIG_UARTON) | BIT(EXTCON_USB_HOST_5V))
#if defined(CONFIG_CHARGER_SMB1357)
#define MAX77804K_PATH_TA_MASK \
(BIT(EXTCON_SMARTDOCK_TA) | BIT(EXTCON_TA))
#endif
static int set_muic_path(struct max77804k_muic_info *info)
{
u32 state = info->edev->state;
int path;
int ret = 0;
dev_info(info->dev, "%s: current state=0x%x, path=%s\n",
__func__, state, max77804k_path_name[info->path]);
if (state & MAX77804K_PATH_FIX_USB_MASK)
path = PATH_USB_AP;
else if (state & MAX77804K_PATH_USB_MASK) {
/* set path to usb following usb_sel */
if (info->muic_data->usb_sel == PATH_USB_CP)
path = PATH_USB_CP;
else
path = PATH_USB_AP;
} else if (state & MAX77804K_PATH_UART_MASK) {
/* set path to uart following uart_sel */
if (info->muic_data->uart_sel == PATH_UART_CP)
path = PATH_UART_CP;
else
path = PATH_UART_AP;
} else if (state & MAX77804K_PATH_AUDIO_MASK)
path = PATH_AUDIO;
#if defined(CONFIG_CHARGER_SMB1357)
else if (state & MAX77804K_PATH_TA_MASK) {
/* set path to TA */
path = PATH_USB_CP;
}
#endif
else {
dev_info(info->dev, "%s: don't have to set path\n", __func__);
return 0;
}
#if defined(CONFIG_MUIC_SUPPORT_RUSTPROOF)
if (!(info->uart_en) && path == PATH_UART_AP) {
dev_info(info->dev, "%s: UART is Disabled for preventing water damage\n", __func__);
path = PATH_OPEN;
}
#endif
ret = max77804k_muic_set_path(info, path);
if (ret < 0) {
dev_err(info->dev, "fail to set path(%s->%s),stat=%x,ret=%d\n",
max77804k_path_name[info->path],
max77804k_path_name[path], state, ret);
return ret;
}
dev_info(info->dev, "%s: path: %s -> %s\n", __func__,
max77804k_path_name[info->path],
max77804k_path_name[path]);
info->path = path;
return 0;
}
#if defined (CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
extern int sec_otg_notify(int event);
static bool lanhub_otg_connected;
#endif
/**
* Desc: In general, it sets the extcon cable worker and sets muic path,
* One shot mode-LPM is set - if no state change(condition Occur in Nested interrupt call).
**/
static void _detected(struct max77804k_muic_info *info, u32 new_state)
{
u32 current_state;
u32 changed_state;
int index;
int attach;
int ret;
current_state = info->edev->state;
changed_state = current_state ^ new_state;
dev_info(info->dev, "state: cur=0x%x, new=0x%x, changed=0x%x\n",
current_state, new_state, changed_state);
for (index = 0; index < SUPPORTED_CABLE_MAX; index++) {
if (!(changed_state & BIT(index)))
continue;
if (new_state & BIT(index))
attach = 1;
else
attach = 0;
ret = extcon_set_cable_state(info->edev,
extcon_cable_name[index], attach);
if (unlikely(ret < 0))
dev_err(info->dev, "fail to notify %s(%d), %d, ret=%d\n",
extcon_cable_name[index], index, attach, ret);
}
#if defined(CONFIG_ADC_ONESHOT)
/* Set ADC Mode to oneshot */
#if defined (CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
if (!new_state && !lanhub_otg_connected) {
#else
if (!new_state) {
#endif
max77804k_muic_set_adcmode(info, ADC_ONESHOT);
msleep(50);
}
#endif
set_muic_path(info);
}
#if defined CONFIG_ID_BYPASS_SBL
int otg_attached = 0;
#endif
static int max77804k_muic_handle_attach(struct max77804k_muic_info *info,
u8 status1, u8 status2)
{
u8 adc;
u8 vbvolt;
u8 chgtyp;
u8 chgdetrun;
u8 adc1k;
u32 pre_state;
u32 new_state;
new_state = 0;
pre_state = info->edev->state;
adc = status1 & STATUS1_ADC_MASK;
/* Only MHL cable */
adc1k = status1 & STATUS1_ADC1K_MASK;
/* Charger type detection */
chgtyp = status2 & STATUS2_CHGTYP_MASK;
/* When vb >= vbdet then it is set */
vbvolt = status2 & STATUS2_VBVOLT_MASK;
/* To make MUIC detect charger detection.*/
chgdetrun = status2 & STATUS2_CHGDETRUN_MASK;
dev_info(info->dev, "%s: \n",__func__);
dev_info(info->dev, "st1:0x%x st2:0x%x\n", status1, status2);
dev_info(info->dev,
"adc:0x%x, adc1k:0x%x, chgtyp:0x%x, vbvolt:%d\n",
adc, adc1k, chgtyp, vbvolt);
dev_info(info->dev, "chgdetrun:0x%x, prev state:0x%x\n",
chgdetrun, pre_state);
/* Workaround for Factory mode in MUIC PASS2.
* Abandon adc interrupt of approximately +-100K range
* if previous cable status was JIG UART BOOT OFF.
* In uart path cp, adc is unstable state
* MUIC PASS2 turn to AP_UART mode automatically
* So, in this state set correct path manually.
*/
#if 0
if (info->max77804k->pmic_rev > MAX77804K_REV_PASS1) {
if ((pre_state & BIT(EXTCON_JIG_UARTOFF)) &&
((adc == ADC_JIG_UART_OFF + 1 ||
(adc == ADC_JIG_UART_OFF - 1))) &&
(info->muic_data->uart_sel == PATH_UART_CP)) {
dev_warn(info->dev, "abandon ADC\n");
new_state = BIT(EXTCON_JIG_UARTOFF);
goto __found_cable;
}
}
#endif
/* 1Kohm ID regiter detection (mHL)
* Old MUIC : ADC value:0x00 or 0x01, ADCLow:1
* New MUIC : ADC value is not set(Open), ADCLow:1, ADCError:1
*/
if ((info->adc != ADC_OPEN) || (info->adc1k & STATUS1_ADC1K_MASK))
info->is_adc_open_prev = false;
if (adc1k) {
#if defined(CONFIG_USBID_STANDARD_VER_01)
#if !defined(CONFIG_MUIC_MAX77804K_SUPPORT_MHL_CABLE_DETECTION)
if (vbvolt) {
new_state = BIT(EXTCON_TA);
info->cable_name = EXTCON_UNDEFINED_CHARGER;
}
#endif
#else
/* 9th bit gets set for MHL cable. */
new_state = BIT(EXTCON_MHL);
info->cable_name = EXTCON_MHL;
/* If is_otg_boost is true,
* it means that vbolt is from the device to accessory.
* Change in vbus detect */
if (vbvolt) {
new_state |= BIT(EXTCON_MHL_VB);
info->cable_name = EXTCON_MHL_VB;
}
#endif
goto __found_cable;
}
switch (adc) {
#if defined(CONFIG_USBID_STANDARD)
case (ADC_BUTTON_S1)...(ADC_BUTTON_S8):
#if !defined(CONFIG_MUIC_DET_JACK)
case ADC_MHL_OR_SENDEND:
case ADC_BUTTON_S9:
case ADC_BUTTON_S10:
case ADC_PHONE_POWERED:
#endif
case ADC_BUTTON_S11:
case ADC_BUTTON_S12:
case ADC_UART:
#if defined(CONFIG_USBID_STANDARD_VER_01)
case ADC_MPOS:
case ADC_VZW_USB_DOCK:
#if !defined(CONFIG_USB_HOST_NOTIFY)
case ADC_GND:
#endif
#if !defined(CONFIG_MUIC_SUPPORT_INCOMPATIBLE_CHARGER)
case ADC_VZW_INCOMPATIBLE:
#endif
#if !defined(CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
case ADC_LANHUB:
#endif
#if !defined(CONFIG_MUIC_SUPPORT_SMART_DOCK)
case ADC_SMARTDOCK:
#endif
#if !defined(CONFIG_MUIC_MAX77804K_SUPPORT_HMT_DETECTION)
case ADC_HMT:
#endif
#if !defined(CONFIG_MUIC_SUPPORT_DESK_DOCK)
case ADC_DESKDOCK:
#endif
#if !defined(CONFIG_MUIC_SUPPORT_AUDIO_DOCK)
case ADC_AUDIODOCK:
#endif
#endif
if (vbvolt) {
new_state = BIT(EXTCON_TA);
info->cable_name = EXTCON_UNDEFINED_CHARGER;
}
break;
#endif
#if defined(CONFIG_USB_HOST_NOTIFY)
case ADC_GND:
#if defined (CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
if (!max77804k_muic_set_adcmode(info, ADC_ALWAYS))
msleep(50);
info->curr_state = ADC_GND;
info->lanhub_ta_status = false;
lanhub_otg_connected = true;
#endif
new_state = BIT(EXTCON_USB_HOST);
info->cable_name = EXTCON_USB_HOST;
#if defined CONFIG_ID_BYPASS_SBL
otg_attached = 1;
#endif
break;
#endif
#if defined(CONFIG_MUIC_SUPPORT_INCOMPATIBLE_CHARGER)
case ADC_VZW_INCOMPATIBLE:
new_state = BIT(EXTCON_INCOMPATIBLE);
info->cable_name = EXTCON_INCOMPATIBLE;
break;
#endif
#if defined (CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
case ADC_LANHUB:
/* Call Lan Hub handler here */
if (!max77804k_muic_set_adcmode(info, ADC_ALWAYS))
msleep(50);
pr_info("%s:LANHUB+TA Detected\n",__func__);
lanhub_otg_connected = true;
if(info->lanhub_ta_status == true)
{
new_state |= (BIT(EXTCON_USB_HOST) | BIT(EXTCON_LANHUB_TA));
goto __found_cable;
}
if ((info->pre_state == ADC_OPEN) && (!chgtyp)) {
pr_info("%s:LANHUB+TA Attached Directly\n",__func__);
sec_otg_notify(HNOTIFY_ID);
new_state = (BIT(EXTCON_USB_HOST) | BIT(EXTCON_LANHUB_TA));
} else if(info->pre_state == ADC_GND) {
new_state = BIT(EXTCON_LANHUB_TA);
pr_info("%s:LANHUB to LANHUB+TA Change\n",__func__);
}
info->curr_state = ADC_LANHUB;
info->lanhub_ta_status = true;
break;
#endif
#if defined(CONFIG_MUIC_SUPPORT_SMART_DOCK)
case ADC_SMARTDOCK:
#if defined(CONFIG_ADC_ONESHOT)
/* Set ADC Mode to Always */
if (!max77804k_muic_set_adcmode(info, ADC_ALWAYS))
msleep(50);
#endif
new_state = BIT(EXTCON_SMARTDOCK);
info->cable_name = EXTCON_SMARTDOCK;
if (chgtyp == CHGTYP_DEDICATED_CHGR) {
new_state |= BIT(EXTCON_SMARTDOCK_TA);
info->cable_name = EXTCON_SMARTDOCK_TA;
} else if (chgtyp == CHGTYP_USB) {
new_state |= BIT(EXTCON_SMARTDOCK_USB);
info->cable_name = EXTCON_SMARTDOCK_USB;
}
break;
#endif
#if defined(CONFIG_MUIC_MAX77804K_SUPPORT_HMT_DETECTION)
case ADC_HMT:
#if defined(CONFIG_ADC_ONESHOT)
/* Set ADC Mode to Always */
if (!max77804k_muic_set_adcmode(info, ADC_ALWAYS))
msleep(50);
#endif
new_state = BIT(EXTCON_HMT);
new_state |= BIT(EXTCON_USB_HOST);
info->cable_name = EXTCON_HMT;
break;
#endif
case ADC_JIG_UART_OFF:
new_state = BIT(EXTCON_JIG_UARTOFF);
info->cable_name = EXTCON_JIG_UARTOFF;
if (vbvolt) {
if (gInfo->otg_test) {/* add for DFMS */
new_state |= BIT(EXTCON_USB_HOST_5V);
info->cable_name = EXTCON_USB_HOST_5V;
} else {
new_state |= BIT(EXTCON_JIG_UARTOFF_VB);
info->cable_name = EXTCON_JIG_UARTOFF_VB;
}
}
break;
case ADC_CARDOCK: /* ADC_CARDOCK == ADC_JIG_UART_ON */
#if defined(CONFIG_SEC_FACTORY)
new_state = BIT(EXTCON_CARDOCK);
#else
new_state = BIT(EXTCON_JIG_UARTON);
#endif
info->cable_name = EXTCON_JIG_UARTON;
break;
case ADC_JIG_USB_OFF:
if (vbvolt) {
new_state = BIT(EXTCON_JIG_USBOFF);
info->cable_name = EXTCON_JIG_USBOFF;
}
break;
case ADC_JIG_USB_ON:
if (vbvolt) {
new_state = BIT(EXTCON_JIG_USBON);
info->cable_name = EXTCON_JIG_USBON;
}
break;
#if defined(CONFIG_MUIC_SUPPORT_DESK_DOCK)
case ADC_DESKDOCK:
new_state = BIT(EXTCON_DESKDOCK);
info->cable_name = EXTCON_DESKDOCK;
if (vbvolt) {
new_state |= BIT(EXTCON_DESKDOCK_VB);
info->cable_name = EXTCON_DESKDOCK_VB;
}
break;
#endif
#if defined(CONFIG_MUIC_SUPPORT_AUDIO_DOCK)
case ADC_AUDIODOCK:
new_state = BIT(EXTCON_AUDIODOCK);
info->cable_name = EXTCON_AUDIODOCK;
break;
#endif
#if defined(CONFIG_MUIC_DET_JACK)
case ADC_MHL_OR_SENDEND:
case ADC_DOCK_VOL_UP:
case ADC_DOCK_VOL_DN:
if ((info->cable_type == CABLE_TYPE_EARJACK_MUIC)) {
new_state = BIT(EXTCON_EARJACK);
info->earkeypressed = true;
max77804k_muic_earjack_key_detect(info, adc);
}
break;
case ADC_EARJACK:
#if defined(CONFIG_ADC_ONESHOT)
max77804k_muic_set_adcmode(info, ADC_ALWAYS);
msleep(50);
#endif
new_state = BIT(EXTCON_EARJACK);
info->cable_name = EXTCON_EARJACK;
if ((info->cable_type == CABLE_TYPE_EARJACK_MUIC) && (info->earkeypressed)) {
info->earkeypressed = false;
max77804k_muic_earjack_key_detect(info, adc);
} else {
max77804k_muic_earjack_detect(info, true);
info->cable_type = CABLE_TYPE_EARJACK_MUIC;
}
break;
#endif
case ADC_CHARGING_CABLE:
#if defined(CONFIG_USBID_STANDARD_VER_01)
if (vbvolt) {
new_state = BIT(EXTCON_TA);
info->cable_name = EXTCON_UNDEFINED_CHARGER;
}
#else
new_state = BIT(EXTCON_CHARGING_CABLE);
info->cable_name = EXTCON_CHARGING_CABLE;
#endif
break;
case ADC_CEA936ATYPE1_CHG:
case ADC_CEA936ATYPE2_CHG:
#if defined(CONFIG_SEC_FACTORY)
new_state = BIT(EXTCON_JIG_UARTOFF);
info->cable_name = EXTCON_JIG_UARTOFF;
if (vbvolt) {
if (gInfo->otg_test) { /*add for DFMS */
new_state |= BIT(EXTCON_USB_HOST_5V);
info->cable_name = EXTCON_USB_HOST_5V;
}
}
break;
#endif
case ADC_OPEN:
#if defined (CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
info->curr_state = ADC_OPEN;
#endif
info->is_adc_open_prev = true;
switch (chgtyp) {
case CHGTYP_USB:
if (adc == ADC_CEA936ATYPE2_CHG) {
new_state = BIT(EXTCON_CEA936_CHG);
info->cable_name = EXTCON_CEA936_CHG;
} else {
new_state = BIT(EXTCON_USB);
info->cable_name = EXTCON_USB;
}
break;
case CHGTYP_DOWNSTREAM_PORT:
new_state = BIT(EXTCON_CHARGE_DOWNSTREAM);
info->cable_name = EXTCON_CHARGE_DOWNSTREAM;
break;
case CHGTYP_DEDICATED_CHGR:
case CHGTYP_500MA:
case CHGTYP_1A:
case CHGTYP_SPECIAL_CHGR:
new_state = BIT(EXTCON_TA);
info->cable_name = EXTCON_TA;
break;
default:
break;
}
break;
default:
#if defined(CONFIG_MUIC_SUPPORT_INCOMPATIBLE_CHARGER)
if (vbvolt) {
dev_warn(info->dev, "Incompatible adc=0x%x\n", adc);
new_state = BIT(EXTCON_INCOMPATIBLE);
info->cable_name = EXTCON_INCOMPATIBLE;
} else
#endif
{
if (is_lpm_mode && vbvolt) {
dev_warn(info->dev, "Incompatible adc=0x%x\n", adc);
new_state = BIT(EXTCON_INCOMPATIBLE);
info->cable_name = EXTCON_INCOMPATIBLE;
} else {
dev_warn(info->dev, "unsupported adc=0x%x\n", adc);
}
}
break;
}
if (!new_state) {
dev_warn(info->dev, "Fail to get cable type (adc=0x%x)\n", adc);
info->cable_name = EXTCON_NONE;
_detected(info, 0);
return -1;
}
#if defined(CONFIG_MUIC_SUPPORT_MMD_CTL)
if(!(info->mmd_en) && (new_state & BIT(EXTCON_SMARTDOCK))) {
#if defined(CONFIG_MUIC_SUPPORT_INCOMPATIBLE_CHARGER)
if (vbvolt) {
dev_warn(info->dev, "Incompatible adc=0x%x\n", adc);
new_state = BIT(EXTCON_INCOMPATIBLE);
} else
#endif
{
return 0;
}
}
#endif
__found_cable:
_detected(info, new_state);
max77804k_update_jig_state(info);
return 0;
}
static int max77804k_muic_handle_detach(struct max77804k_muic_info *info)
{
u8 ctrl2_val;
info->cable_name = EXTCON_NONE;
/* Workaround: irq doesn't occur after detaching mHL cable */
max77804k_write_reg(info->muic, MAX77804K_MUIC_REG_CTRL1,
MAX77804K_MUIC_CTRL1_BIN_0_000);
/* Enable Factory Accessory Detection State Machine */
max77804k_update_reg(info->muic,
MAX77804K_MUIC_REG_CTRL2, CTRL2_CPEn0_LOWPWD1,
CTRL2_CPEn_MASK | CTRL2_LOWPWD_MASK);
max77804k_read_reg(info->muic, MAX77804K_MUIC_REG_CTRL2,
&ctrl2_val);
dev_info(info->dev, "%s: CNTL2(0x%02x)\n", __func__, ctrl2_val);
#if defined(CONFIG_MUIC_DET_JACK)
if(info->cable_type == CABLE_TYPE_EARJACK_MUIC) {
dev_info(info->dev, "%s: EARJACK\n", __func__);
_detected(info, 0);
info->earkeypressed = false;
max77804k_muic_earjack_key_detect(info, 0);
info->cable_type = CABLE_TYPE_NONE_MUIC;
max77804k_muic_earjack_detect(info, false);
max77804k_update_reg(info->muic,
MAX77804K_MUIC_REG_CTRL1, 0, MICEN_MASK);
#if defined(CONFIG_ADC_ONESHOT)
max77804k_muic_set_adcmode(info, ADC_ONESHOT);
msleep(50);
#endif
return 0;
}
#endif
#if defined (CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
lanhub_otg_connected = false;
if ((info->pre_state == ADC_OPEN)
&& (info->curr_state == ADC_LANHUB)) {
pr_err("Detach event only for ID pull , not 16 \n");
info->curr_state = ADC_OPEN;
info->edev->state &= ~(BIT(EXTCON_LANHUB_TA));
sec_otg_notify(HNOTIFY_ID_PULL);
}
#endif
#if defined CONFIG_ID_BYPASS_SBL
otg_attached = 0;
#endif
_detected(info, 0);
return 0;
}
static void max77804k_muic_detect_dev(struct max77804k_muic_info *info, int irq)
{
struct i2c_client *client = info->muic;
u8 status[2];
int intr = INT_ATTACH;
int ret;
u8 cntl1_val;
ret = max77804k_read_reg(client, MAX77804K_MUIC_REG_CTRL1, &cntl1_val);
dev_info(info->dev, "func:%s CONTROL1:%x\n", __func__, cntl1_val);
ret = max77804k_bulk_read(client, MAX77804K_MUIC_REG_STATUS1, 2, status);
dev_info(info->dev, "func:%s irq:%d ret:%d\n", __func__, irq, ret);
if (ret) {
dev_err(info->dev, "%s: fail to read muic reg(%d)\n", __func__,
ret);
return;
}
dev_info(info->dev, "%s: STATUS1:0x%x, 2:0x%x\n", __func__,
status[0], status[1]);
wake_lock_timeout(&info->muic_wake_lock, HZ * 2);
info->adc = status[0] & STATUS1_ADC_MASK;
info->chgtyp = status[1] & STATUS2_CHGTYP_MASK;
info->vbvolt = status[1] & STATUS2_VBVOLT_MASK;
info->adc1k = status[0] & STATUS1_ADC1K_MASK;
dev_info(info->dev,
"adc:0x%x, adc1k:0x%x, chgtyp:0x%x, vbvolt:%d adc open prev:%d\n",
info->adc, info->adc1k, info->chgtyp, info->vbvolt, info->is_adc_open_prev);
if ((!info->is_adc_open_prev) && (info->adc == ADC_OPEN) && (info->vbvolt)) {
/* added a 100ms delay after detach accessory */
msleep(100);
dev_info(info->dev, "wait 100ms for update status register\n");
ret = max77804k_bulk_read(client, MAX77804K_MUIC_REG_STATUS1, 2, status);
dev_info(info->dev, "func:%s irq:%d ret:%d\n", __func__, irq, ret);
info->adc = status[0] & STATUS1_ADC_MASK;
info->chgtyp = status[1] & STATUS2_CHGTYP_MASK;
info->vbvolt = status[1] & STATUS2_VBVOLT_MASK;
info->adc1k = status[0] & STATUS1_ADC1K_MASK;
dev_info(info->dev,
"adc:0x%x, adc1k:0x%x, chgtyp:0x%x, vbvolt:%d\n",
info->adc, info->adc1k, info->chgtyp, info->vbvolt);
}
if ((info->adc == ADC_OPEN) && (info->chgtyp == CHGTYP_NO_VOLTAGE))
{
intr = INT_DETACH;
}
if (intr == INT_ATTACH) {
dev_info(info->dev, "%s: ATTACHED/CHANGED\n", __func__);
max77804k_muic_handle_attach(info, status[0], status[1]);
} else if (intr == INT_DETACH) {
dev_info(info->dev, "%s: DETACHED\n", __func__);
#if defined (CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
info->pre_state = ADC_OPEN;
info->lanhub_ta_status = false;
#endif
info->is_adc_open_prev = true;
max77804k_muic_handle_detach(info);
} else {
pr_info("%s:%s device filtered, nothing affect.\n", DEV_NAME,
__func__);
}
return;
}
static irqreturn_t max77804k_muic_irq(int irq, void *data)
{
struct max77804k_muic_info *info = data;
dev_info(info->dev, "%s: irq:%d\n", __func__, irq);
#if defined(CONFIG_MUIC_DET_JACK)
if (!(info->init_detect_done == INIT_DONE))
return IRQ_HANDLED;
#endif
mutex_lock(&info->mutex);
max77804k_muic_detect_dev(info, irq);
mutex_unlock(&info->mutex);
return IRQ_HANDLED;
}
#define REQUEST_IRQ(_irq, _name) \
do { \
ret = request_threaded_irq(_irq, NULL, max77804k_muic_irq, \
0, _name, info); \
if (ret < 0) \
dev_err(info->dev, "Failed to request IRQ #%d: %d\n", \
_irq, ret); \
} while (0)
static int max77804k_muic_irq_init(struct max77804k_muic_info *info)
{
int ret, count;
u8 val;
dev_info(info->dev, "func:%s\n", __func__);
/* dev_info(info->dev, "%s: system_rev=%x\n", __func__, system_rev); */
/* INTMASK1 3:ADC1K 2:ADCErr 1:ADCLow 0:ADC */
/* INTMASK2 0:Chgtype */
max77804k_write_reg(info->muic, MAX77804K_MUIC_REG_INTMASK1, 0x09);
max77804k_write_reg(info->muic, MAX77804K_MUIC_REG_INTMASK2, 0x11);
max77804k_write_reg(info->muic, MAX77804K_MUIC_REG_INTMASK3, 0x00);
REQUEST_IRQ(info->irq_adc, "muic-adc");
REQUEST_IRQ(info->irq_chgtype, "muic-chgtype");
REQUEST_IRQ(info->irq_vbvolt, "muic-vbvolt");
dev_info(info->dev, "adc:%d chgtype:%d vbvolt:%d",
info->irq_adc, info->irq_chgtype, info->irq_vbvolt);
for (count = 1; count < 9 ; count ++) {
max77804k_read_reg(info->muic, count, &val);
dev_info(info->dev, "%s: reg=%x, val=%x\n", __func__,
count, val);
}
return 0;
}
static void max77804k_muic_init_detect(struct work_struct *work)
{
struct max77804k_muic_info *info =
container_of(work, struct max77804k_muic_info, init_work.work);
dev_info(info->dev, "func:%s\n", __func__);
mutex_lock(&info->mutex);
#if defined(CONFIG_MUIC_DET_JACK)
info->init_detect_done = INIT_START;
#endif
info->edev->state = 0;
max77804k_muic_detect_dev(info, -1);
#if defined(CONFIG_MUIC_DET_JACK)
info->init_detect_done = INIT_DONE;
#endif
mutex_unlock(&info->mutex);
}
void max77804k_update_jig_state(struct max77804k_muic_info *info)
{
struct i2c_client *client = info->muic;
//struct max77804k_muic_data *mdata = info->muic_data;
u8 reg_data, adc;
int ret, jig_state;
ret = max77804k_read_reg(client, MAX77804K_MUIC_REG_STATUS1, &reg_data);
if (ret) {
dev_err(info->dev, "%s: fail to read muic reg(%d)\n",
__func__, ret);
return;
}
adc = reg_data & STATUS1_ADC_MASK;
switch (adc) {
case ADC_JIG_UART_OFF:
case ADC_JIG_USB_OFF:
case ADC_JIG_USB_ON:
jig_state = true;
break;
default:
jig_state = false;
break;
}
// mdata->jig_state(jig_state);
max77804k_muic_uart_uevent(jig_state);
}
#ifdef CONFIG_USB_HOST_NOTIFY
struct booster_data sec_booster = {
.name = "max77804k",
.boost = muic_otg_control,
};
#endif
static int __init get_lpm_mode(char *str)
{
if (!strncasecmp(str, "lpm", 3)) {
pr_info("%s:lpm mode\n", __func__);
is_lpm_mode = true;
} else {
pr_info("%s:not lpm mode\n", __func__);
is_lpm_mode = false;
}
return 0;
}
__setup("androidboot.baseband=", get_lpm_mode);
static int __devinit max77804k_muic_probe(struct platform_device *pdev)
{
struct max77804k_dev *max77804k = dev_get_drvdata(pdev->dev.parent);
struct max77804k_platform_data *pdata = dev_get_platdata(max77804k->dev);
struct max77804k_muic_info *info;
#if defined(CONFIG_MUIC_DET_JACK)
struct input_dev *input;
struct class *audio;
struct device *earjack;
#endif
int ret;
u8 cdetctrl1;
pr_info("func:%s\n", __func__);
info = kzalloc(sizeof(struct max77804k_muic_info), GFP_KERNEL);
if (!info) {
dev_err(&pdev->dev, "%s: failed to allocate info\n", __func__);
ret = -ENOMEM;
goto err_return;
}
#if defined(CONFIG_MUIC_DET_JACK)
input = input_allocate_device();
if (!input) {
dev_err(&pdev->dev, "%s: failed to allocate input\n", __func__);
ret = -ENOMEM;
goto err_kfree;
}
#endif
info->dev = &pdev->dev;
info->max77804k = max77804k;
info->muic = max77804k->muic;
#if defined(CONFIG_MUIC_DET_JACK)
info->input = input;
#endif
info->irq_adc = max77804k->irq_base + MAX77804K_MUIC_IRQ_INT1_ADC;
info->irq_vbvolt = max77804k->irq_base + MAX77804K_MUIC_IRQ_INT2_VBVOLT;
info->irq_chgtype = max77804k->irq_base + MAX77804K_MUIC_IRQ_INT2_CHGTYP;
info->muic_data = pdata->muic_data;
info->muic_data->uart_sel = PATH_UART_AP;
info->is_adc_open_prev = true;
#if !defined(CONFIG_MUIC_MAX77804K_SUPPORT_CAR_DOCK)
info->is_factory_start = false;
#endif /* !CONFIG_MUIC_MZX77804k_SUPPORT_CAR_DOCK */
info->edev = devm_kzalloc(&pdev->dev, sizeof(struct extcon_dev),
GFP_KERNEL);
if (!info->edev) {
dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
ret = -ENOMEM;
goto err_input;
}
info->edev->name=EXTCON_DEV_NAME;
info->edev->supported_cable = extcon_cable_name;
ret = extcon_dev_register(info->edev, NULL);
if (ret) {
dev_err(&pdev->dev, "failed to register extcon device\n");
goto err_input;
}
wake_lock_init(&info->muic_wake_lock, WAKE_LOCK_SUSPEND,
"muic wake lock");
info->cable_name = EXTCON_NONE;
#if defined (CONFIG_MUIC_MAX77804K_SUPPORT_LANHUB)
info->lanhub_ta_status = false;
info->pre_state = ADC_OPEN;
info->curr_state = MAX77804K_MUIC_NONE;
#endif
info->muic_data->usb_sel = PATH_USB_AP;
#if defined(CONFIG_MUIC_DET_JACK)
info->eardetected = false;
info->earkeypressed = false;
info->init_detect_done = NOT_INIT;
info->old_keycode = 0;
info->keycode = 0;
#endif
gInfo = info;
platform_set_drvdata(pdev, info);
dev_info(info->dev, "adc:%d chgtype:%d\n",
info->irq_adc, info->irq_chgtype);
#if defined(CONFIG_MUIC_DET_JACK)
input->name = pdev->name;
input->phys = "deskdock-key/input0";
input->dev.parent = &pdev->dev;
input->id.bustype = BUS_HOST;
input->id.vendor = 0x0001;
input->id.product = 0x0001;
input->id.version = 0x0001;
/* Enable auto repeat feature of Linux input subsystem */
__set_bit(EV_REP, input->evbit);
dev_info(info->dev, "input->name:%s\n", input->name);
input_set_capability(input, EV_KEY, KEY_MEDIA);
input_set_capability(input, EV_KEY, KEY_VOLUMEUP);
input_set_capability(input, EV_KEY, KEY_VOLUMEDOWN);
input_set_capability(input, EV_KEY, KEY_PLAYPAUSE);
input_set_capability(input, EV_KEY, KEY_PREVIOUSSONG);
input_set_capability(input, EV_KEY, KEY_NEXTSONG);
ret = input_register_device(input);
if (ret) {
dev_err(info->dev, "%s: Unable to register input device, "
"error: %d\n", __func__, ret);
goto err_input;
}
#endif
#if defined(CONFIG_SWITCH_DUAL_MODEM) || defined(CONFIG_MUIC_RUSTPROOF_UART)
switch_sel &= 0xf;
if ((switch_sel & MAX77804K_SWITCH_SEL_1st_BIT_USB) == 0x1)
info->muic_data->usb_sel = PATH_USB_AP;
else
info->muic_data->usb_sel = PATH_USB_CP;
if ((switch_sel & MAX77804K_SWITCH_SEL_2nd_BIT_UART) == 0x1 << 1)
info->muic_data->uart_sel = PATH_UART_AP;
else
info->muic_data->uart_sel = PATH_UART_CP;
pr_err("%s: switch_sel: %x\n", __func__, switch_sel);
#endif
/* create sysfs group */
ret = sysfs_create_group(&switch_dev->kobj, &max77804k_muic_group);
pr_info("dev_set_drvdata:%s\n", __func__);
dev_set_drvdata(switch_dev, info);
if (ret) {
dev_err(&pdev->dev,
"failed to create max77804k muic attribute group\n");
goto err_input;
}
mutex_init(&info->mutex);
/* Set ADC debounce time: 25ms */
max77804k_muic_set_adcdbset(info, 2);
/* Set DCDTmr to 2sec */
max77804k_read_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, &cdetctrl1);
/* Get adcmode value */
max77804k_read_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CTRL4, &info->adc_mode);
info->adc_mode = info->adc_mode >> CTRL4_ADCMODE_SHIFT;
pr_info("%s: ADCMODE(0x%x)\n", __func__, info->adc_mode);
cdetctrl1 &= ~(1 << 5);
max77804k_write_reg(info->max77804k->muic,
MAX77804K_MUIC_REG_CDETCTRL1, cdetctrl1);
pr_info("%s: CDETCTRL1(0x%02x)\n", __func__, cdetctrl1);
#if defined(CONFIG_MUIC_DET_JACK)
ret = switch_dev_register(&switch_earjack);
if (ret < 0) {
pr_info("%s : Failed to register switch device\n", __func__);
goto err_switch_dev_register;
}
ret = switch_dev_register(&switch_earjackkey);
if (ret < 0) {
pr_info("%s : Failed to register switch device\n", __func__);
goto err_switch_dev_register;
}
audio = class_create(THIS_MODULE, "audio");
if (IS_ERR(audio)) {
pr_err("Failed to create class(audio)!\n");
goto err_switch_dev_register;
}
earjack = device_create(audio, NULL, 0, NULL, "earjack");
if (IS_ERR(earjack)) {
pr_err("Failed to create device(earjack)!\n");
goto err_switch_dev_register;
}
ret = device_create_file(earjack, &dev_attr_key_state);
if (ret) {
pr_err("Failed to create device file in sysfs entries(%s)!\n",
dev_attr_key_state.attr.name);
goto err_switch_dev_register;
}
ret = device_create_file(earjack, &dev_attr_state);
if (ret) {
pr_err("Failed to create device file in sysfs entries(%s)!\n",
dev_attr_state.attr.name);
goto err_switch_dev_register;
}
dev_set_drvdata(earjack, info);
#endif
ret = switch_dev_register(&switch_uart3);
if (ret < 0) {
pr_err("%s : Failed to register switch_uart3 device\n", __func__);
goto err_switch_uart3_dev_register;
}
ret = max77804k_muic_irq_init(info);
if (ret < 0) {
dev_err(&pdev->dev, "Failed to initialize MUIC irq:%d\n", ret);
goto fail;
}
#if defined(CONFIG_MUIC_SUPPORT_RUSTPROOF)
if ( (switch_sel&0x08) == 0x00 ) {
/* MAKE PATH OPEN */
max77804k_muic_set_path(info, PATH_OPEN);
pr_info("%s: uart en bit : %d\n", __func__, (switch_sel&0x08));
pr_info("%s: MUIC path is OPEN from now.\n", __func__);
} else {
pr_info("%s: uart enabled : %d\n", __func__, (switch_sel&0x08));
info->uart_en = true;
}
#endif
/* initial cable detection */
INIT_DELAYED_WORK(&info->init_work, max77804k_muic_init_detect);
schedule_delayed_work(&info->init_work, msecs_to_jiffies(3000));
#if defined(CONFIG_MUIC_DET_JACK)
INIT_WORK(&info->earjack_work, max77804k_muic_earjack_detect_workfunc);
INIT_WORK(&info->earjackkey_work, max77804k_muic_earjack_key_detect_workfunc);
#endif
/* init jig state */
max77804k_update_jig_state(info);
#ifdef CONFIG_USB_HOST_NOTIFY
sec_otg_register_booster(&sec_booster);
#endif
return 0;
fail:
if (info->irq_adc)
free_irq(info->irq_adc, NULL);
if (info->irq_chgtype)
free_irq(info->irq_chgtype, NULL);
if (info->irq_vbvolt)
free_irq(info->irq_vbvolt, NULL);
mutex_destroy(&info->mutex);
#if defined(CONFIG_MUIC_DET_JACK)
err_switch_dev_register:
switch_dev_unregister(&switch_earjack);
switch_dev_unregister(&switch_earjackkey);
#endif
err_switch_uart3_dev_register:
switch_dev_unregister(&switch_uart3);
err_input:
platform_set_drvdata(pdev, NULL);
wake_lock_destroy(&info->muic_wake_lock);
#if !defined(CONFIG_MUIC_DET_JACK)
kfree(info);
#else
err_kfree:
kfree(info);
#endif
err_return:
return ret;
}
#if !defined(CONFIG_SEC_FACTORY)
static int max77804k_suspend(struct device *dev)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
#if defined(CONFIG_CHARGER_SMB1357)
if (info) {
if (info->path == PATH_USB_CP)
return 0;
}
#endif
if (info) {
#if defined (CONFIG_MUIC_DET_JACK)
if (!info->eardetected)
#endif
max77804k_muic_set_path(info, PATH_OPEN);
} else {
pr_err("%s, dev_get_drvdata fail\n", __func__);
}
return 0;
}
static int max77804k_resume(struct device *dev)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
dev_info(info->dev, "func:%s\n", __func__);
#if defined(CONFIG_CHARGER_SMB1357)
if (info) {
if (info->path == PATH_USB_CP)
return 0;
}
#endif
if (info) {
if (info->edev->state)
max77804k_muic_set_path(info, info->path);
else
pr_info("%s, extcon cable none\n", __func__);
} else {
pr_err("%s, dev_get_drvdata fail\n", __func__);
}
return 0;
}
static const struct dev_pm_ops max77804k_dev_pm_ops = {
.suspend = max77804k_suspend,
.resume = max77804k_resume,
};
#endif
static int __devexit max77804k_muic_remove(struct platform_device *pdev)
{
struct max77804k_muic_info *info = platform_get_drvdata(pdev);
sysfs_remove_group(&switch_dev->kobj, &max77804k_muic_group);
if (info) {
dev_info(info->dev, "func:%s\n", __func__);
cancel_delayed_work(&info->init_work);
free_irq(info->irq_adc, info);
free_irq(info->irq_chgtype, info);
free_irq(info->irq_vbvolt, info);
wake_lock_destroy(&info->muic_wake_lock);
mutex_destroy(&info->mutex);
kfree(info);
}
return 0;
}
void max77804k_muic_shutdown(struct device *dev)
{
struct max77804k_muic_info *info = dev_get_drvdata(dev);
int ret;
u8 val;
dev_info(info->dev, "func:%s\n", __func__);
if (!info->muic) {
dev_err(info->dev, "%s: no muic i2c client\n", __func__);
return;
}
dev_info(info->dev, "%s: JIGSet: auto detection\n", __func__);
val = (0 << CTRL3_JIGSET_SHIFT) | (0 << CTRL3_BOOTSET_SHIFT);
ret = max77804k_update_reg(info->muic, MAX77804K_MUIC_REG_CTRL3, val,
CTRL3_JIGSET_MASK | CTRL3_BOOTSET_MASK);
if (ret < 0) {
dev_err(info->dev, "%s: fail to update reg\n", __func__);
return;
}
}
static struct platform_driver max77804k_muic_driver = {
.driver = {
.name = DEV_NAME,
.owner = THIS_MODULE,
#if !defined(CONFIG_SEC_FACTORY)
.pm = &max77804k_dev_pm_ops,
#endif
.shutdown = max77804k_muic_shutdown,
},
.probe = max77804k_muic_probe,
.remove = __devexit_p(max77804k_muic_remove),
};
static int __init max77804k_muic_init(void)
{
pr_info("func:%s\n", __func__);
return platform_driver_register(&max77804k_muic_driver);
}
module_init(max77804k_muic_init);
static void __exit max77804k_muic_exit(void)
{
pr_info("func:%s\n", __func__);
platform_driver_unregister(&max77804k_muic_driver);
}
module_exit(max77804k_muic_exit);
MODULE_DESCRIPTION("Maxim MAX77804K MUIC driver");
MODULE_AUTHOR("<sukdong.kim@samsung.com>");
MODULE_LICENSE("GPL");
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