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kernel_samsung_a53x/drivers/battery/fuelgauge/sm5714_fuelgauge/sm5714_fuelgauge.c

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Import A536BXXU9EXDC
2024-06-15 21:02:09 +02:00
/*
* sm5714_fuelgauge.c
* Samsung sm5714 Fuel Gauge Driver
*
* Copyright (C) 2019 Samsung Electronics
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/* #define BATTERY_LOG_MESSAGE */
#include "sm5714_fuelgauge.h"
#include <linux/of_gpio.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
static enum power_supply_property sm5714_fuelgauge_props[] = {
POWER_SUPPLY_PROP_ONLINE,
};
static char *sm5714_fg_supplied_to[] = {
"sm5714-fuelgauge",
};
#define MINVAL(a, b) ((a <= b) ? a : b)
#define MAXVAL(a, b) ((a > b) ? a : b)
#define LIMIT_N_CURR_MIXFACTOR -2000
#define TABLE_READ_COUNT 2
#define FG_ABNORMAL_RESET -1
#define IGNORE_N_I_OFFSET 1
#define SM5714_FG_FULL_DEBUG 1
#define I2C_ERROR_COUNT_MAX 5
#if defined(CONFIG_SEC_FACTORY)
#define FG_REG_CHECK_TABLE_LEN 11
#endif
#define SM5714_FUELGAUGE_VERSION "WF1"
/* void sm5714_adabt_full_offset(struct sm5714_fuelgauge_data *fuelgauge); */
static bool sm5714_fg_init(struct sm5714_fuelgauge_data *fuelgauge, bool is_surge);
static int sm5714_device_id = -1;
#if !defined(CONFIG_SEC_FACTORY)
static int sm5714_fg_debug_print;
#endif
static unsigned int __read_mostly lpcharge;
module_param(lpcharge, uint, 0444);
static int __read_mostly factory_mode;
module_param(factory_mode, int, 0444);
enum sm5714_battery_table_type {
DISCHARGE_TABLE = 0,
SOC_TABLE,
TABLE_MAX,
};
static int sm5714_regs[] = {
0x0000, 0x0001, 0x0003, 0x0004, 0x0010, 0x0013, 0x0020, 0x0021, 0x0022, 0x008B, 0x008C, 0x008D, 0x008E, 0x008F
};
static int sm5714_srams[] = {
0x0000, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008, 0x0009, 0x000A,
0x0015, 0x0016, 0x0017, 0x0018, 0x0019, 0x001A, 0x001B, 0x001C,
0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,
0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, 0x0044, 0x0045, 0x0046, 0x0047, 0x0048,
0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,
0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F,
0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,
0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x0087, 0x008A, 0x008B,
0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097,
0x0098, 0x0099, 0x009A, 0x009B, 0x009C, 0x009D, 0x009E, 0x009F,
0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF,
0x00D8, 0x00DF, 0x00ED, 0x00EE
};
#if defined(CONFIG_SEC_FACTORY)
static int sm5714_reg_check_table[2][11] = {
{0x60, 0x61, 0x62, 0x69, 0x6A, 0x6B, 0x6C, 0x6E, 0x6F, 0x7B, 0x7C},
{0x0800, 0x0000, 0x0800, 0x0000, 0x0800, 0x0000, 0x0000, 0x0000, 0x0000, 0x0733, 0x0002},
};
#endif
static int sm5714_get_lpmode(void) { return lpcharge; }
static unsigned int sm5714_get_facmode(void) { return factory_mode; }
static int sm5714_fg_find_addr(int addr)
{
int r_size = (int)ARRAY_SIZE(sm5714_regs);
int i;
for (i = 0; i < r_size; i++) {
if (sm5714_regs[i] == addr) {
pr_info("%s: addr: 0x%x == 0x%x is founded\n", __func__, sm5714_regs[i], addr);
return 1;
}
}
pr_info("%s: addr: 0x%x doesn't exist, cannot write data\n", __func__, addr);
return 0;
}
static int sm5714_fg_find_sram_addr(int addr)
{
int r_size = (int)ARRAY_SIZE(sm5714_srams);
int i;
for (i = 0; i < r_size; i++) {
if (sm5714_srams[i] == addr) {
pr_info("%s: addr: 0x%x == 0x%x is founded\n", __func__, sm5714_srams[i], addr);
return 1;
}
}
pr_info("%s: addr: 0x%x doesn't exist, cannot write data\n", __func__, addr);
return 0;
}
static int sm5714_fg_read_sram(struct sm5714_fuelgauge_data *fuelgauge, int sram_addr)
{
int data;
#if defined(CONFIG_SEC_FACTORY)
int addr;
#endif
mutex_lock(&fuelgauge->fg_lock);
if (sm5714_write_word(fuelgauge->i2c, SM5714_FG_REG_SRAM_RADDR, sram_addr)) {
pr_info("%s: SM5714_FG_REG_SRAM_RADDR write ERROR!!!!!\n", __func__);
mutex_unlock(&fuelgauge->fg_lock);
return -1;
}
data = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SRAM_RDATA);
#if defined(CONFIG_SEC_FACTORY)
addr = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SRAM_RADDR);
if (sram_addr != addr)
pr_info("%s: SM5714_FG_REG_SRAM_RADDR read ERROR!!!!!(0x%x, 0x%x)\n",
__func__, sram_addr, addr);
#endif
mutex_unlock(&fuelgauge->fg_lock);
return data;
}
static int sm5714_fg_write_sram(struct sm5714_fuelgauge_data *fuelgauge, int sram_addr, int data)
{
mutex_lock(&fuelgauge->fg_lock);
if (sm5714_write_word(fuelgauge->i2c, SM5714_FG_REG_SRAM_WADDR, sram_addr)) {
pr_info("%s: SM5714_FG_REG_SRAM_WADDR write ERROR!!!!!\n", __func__);
mutex_unlock(&fuelgauge->fg_lock);
return -1;
}
if (sm5714_write_word(fuelgauge->i2c, SM5714_FG_REG_SRAM_WDATA, data)) {
pr_info("%s: SM5714_FG_REG_SRAM_WDATA write ERROR!!!!!\n", __func__);
mutex_unlock(&fuelgauge->fg_lock);
return -1;
}
mutex_unlock(&fuelgauge->fg_lock);
return 1;
}
bool sm5714_fg_fuelalert_init(struct sm5714_fuelgauge_data *fuelgauge,
int soc);
#if !defined(CONFIG_SEC_FACTORY)
static void sm5714_dump_all(struct sm5714_fuelgauge_data *fuelgauge)
{
int val;
int i;
int r_size = (int)ARRAY_SIZE(sm5714_srams)/4;
char temp_buf[660] = {0,};
switch (sm5714_fg_debug_print%5) {
case 0:
for (i = 0; i < (int)ARRAY_SIZE(sm5714_regs); i++) {
val = -1;
val = sm5714_read_word(fuelgauge->i2c, sm5714_regs[i]);
sprintf(temp_buf+strlen(temp_buf), "%02x:%04x,", sm5714_regs[i], val);
}
pr_info("[sm5714_fg_all_regs] %s\n", temp_buf);
memset(temp_buf, 0x0, sizeof(temp_buf));
sm5714_fg_debug_print++;
break;
case 1:
for (i = 0; i < r_size; i++) {
val = -1;
val = sm5714_fg_read_sram(fuelgauge, sm5714_srams[i]);
sprintf(temp_buf+strlen(temp_buf), "%02x:%04x,", sm5714_srams[i], val);
}
pr_info("[sm5714_fg_all_srams_1] %s\n", temp_buf);
memset(temp_buf, 0x0, sizeof(temp_buf));
sm5714_fg_debug_print++;
break;
case 2:
for (i = r_size; i < r_size*2; i++) {
val = -1;
val = sm5714_fg_read_sram(fuelgauge, sm5714_srams[i]);
sprintf(temp_buf+strlen(temp_buf), "%02x:%04x,", sm5714_srams[i], val);
}
pr_info("[sm5714_fg_all_srams_2] %s\n", temp_buf);
memset(temp_buf, 0x0, sizeof(temp_buf));
sm5714_fg_debug_print++;
break;
case 3:
for (i = r_size*2; i < r_size*3; i++) {
val = -1;
val = sm5714_fg_read_sram(fuelgauge, sm5714_srams[i]);
sprintf(temp_buf+strlen(temp_buf), "%02x:%04x,", sm5714_srams[i], val);
}
pr_info("[sm5714_fg_all_srams_3] %s\n", temp_buf);
memset(temp_buf, 0x0, sizeof(temp_buf));
sm5714_fg_debug_print++;
break;
case 4:
for (i = r_size*3; i < r_size*4; i++) {
val = -1;
val = sm5714_fg_read_sram(fuelgauge, sm5714_srams[i]);
sprintf(temp_buf+strlen(temp_buf), "%02x:%04x,", sm5714_srams[i], val);
}
pr_info("[sm5714_fg_all_srams_4] %s\n", temp_buf);
memset(temp_buf, 0x0, sizeof(temp_buf));
sm5714_fg_debug_print = 0;
break;
}
}
#else
static void sm5714_fg_reg_dump(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret_data = 0;
int i;
char *str = NULL;
str = kzalloc(sizeof(char) * 2056, GFP_KERNEL);
if (!str)
return;
for (i = 0x00; i <= 0xff; i++) {
ret_data = -1;
ret_data = sm5714_read_word(fuelgauge->i2c, i);
sprintf(str + strlen(str), "%04x, ", ret_data);
if (((i + 0x1) % 0x20 == 0) && (i != 0xff))
sprintf(str + strlen(str), "\n");
}
pr_info("%s\n", str);
kfree(str);
}
static void sm5714_fuel_gauge_abnormal_reg_check(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret_data = 0, ret_addr = 0;
int addr, data;
int i, abnormal_reg = 0, retry_cnt = 0;
pr_info("%s\n", __func__);
sm5714_fg_reg_dump(fuelgauge);
for (i = 0; i < FG_REG_CHECK_TABLE_LEN; i++) {
retry_cnt = 0;
addr = sm5714_reg_check_table[0][i];
data = sm5714_reg_check_table[1][i];
ret_data = sm5714_fg_read_sram(fuelgauge, addr);
if (ret_data != data) {
abnormal_reg = 1;
pr_info("addr:0x%02x, data:0x%04x, comp data:0x%04x\n",
addr, data, ret_data);
do {
mutex_lock(&fuelgauge->fg_lock);
ret_addr = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SRAM_RADDR);
mutex_unlock(&fuelgauge->fg_lock);
pr_info("addr:0x%02x, data:0x%04x, comp addr:0x%04x (retry %d)\n",
addr, data, ret_addr, retry_cnt++);
msleep(20);
} while (ret_addr != addr && retry_cnt <= 10);
mutex_lock(&fuelgauge->fg_lock);
ret_data = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SRAM_RDATA);
mutex_unlock(&fuelgauge->fg_lock);
pr_info("addr:0x%02x, data:0x%04x, comp data:0x%04x\n",
addr, data, ret_data);
}
}
if (abnormal_reg) {
sm5714_fg_reg_dump(fuelgauge);
panic("sm5714-fg abnormal reg");
}
}
#endif
static bool sm5714_fg_check_reg_init_need(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret;
ret = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SYSTEM_STATUS);
if ((ret & INIT_CHECK_MASK) == DISABLE_RE_INIT) {
pr_info("%s: SM5714_REG_FG_SYSTEM_STATUS : 0x%x , return FALSE NO init need\n", __func__, ret);
return 0;
}
pr_info("%s: SM5714_REG_FG_SYSTEM_STATUS : 0x%x , return TRUE init need!!!!\n", __func__, ret);
return 1;
}
static unsigned int sm5714_get_vbat(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret1 = 0, ret2 = 0;
unsigned int vbat = 0, vbat_avg = 0; /* = 3500; 3500 means 3500mV*/
ret1 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_VBAT);
ret2 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_VBAT_AVG);
/* auto value change to vsys by jig */
if (sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SYSTEM_STATUS) & 0x8000) {
if (fuelgauge->isjigmoderealvbat) {
ret1 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_VSYS);
pr_info("%s : nENQ4 high JIG_ON, BUT need real VBAT, return VSYS_REG 0x%x\n", __func__, ret1);
} else
pr_info("%s : nENQ4 high JIG_ON, return VBAT_REG 0x%x, VSYS_REG 0x%x\n", __func__,
ret1, sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_VSYS));
} else if (sm5714_get_facmode()) {
vbat = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_VSYS);
pr_info("%s : nENQ4 low but factory_mode, VBAT_REG 0x%x, return VSYS_REG 0x%x\n", __func__, ret1, vbat);
ret1 = vbat;
}
if (ret1 < 0) {
pr_err("%s: read vbat reg fail", __func__);
vbat = 4000;
} else {
if (ret1 & 0x8000)
vbat = 2700 - (((ret1 & 0x7fff) * 10) / 109);
else
vbat = ((ret1 * 10) / 109) + 2700;
}
fuelgauge->info.batt_voltage = vbat;
if (ret2 < 0) {
pr_err("%s: read vbat_avg reg fail", __func__);
vbat_avg = vbat;
} else {
if (ret2 & 0x8000)
vbat_avg = 2700 - (((ret2 & 0x7fff) * 10) / 109);
else
vbat_avg = ((ret2 * 10) / 109) + 2700;
}
fuelgauge->info.batt_avgvoltage = vbat_avg;
if ((fuelgauge->vempty_mode == VEMPTY_MODE_SW_VALERT) &&
(vbat >= fuelgauge->battery_data->sw_v_empty_recover_vol)) {
fuelgauge->vempty_mode = VEMPTY_MODE_SW_RECOVERY;
sm5714_fg_fuelalert_init(fuelgauge,
fuelgauge->pdata->fuel_alert_soc);
pr_info("%s : Recoverd from SW V EMPTY Activation\n", __func__);
}
return vbat;
}
static unsigned int sm5714_get_ocv(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret;
unsigned int ocv; /* = 3500; *//*3500 means 3500mV*/
ret = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_OCV);
if (ret < 0) {
pr_err("%s: read ocv reg fail\n", __func__);
ocv = 4000;
} else {
ocv = (ret * 1000) >> 11;
}
fuelgauge->info.batt_ocv = ocv;
return ocv;
}
static int sm5714_get_curr(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret, s_stat, a_stat;
int curr = 0, curr_avg = 0; /* = 1000; 1000 means 1000mA*/
ret = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_CURRENT);
s_stat = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SYSTEM_STATUS);
a_stat = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_AUX_STAT);
if (ret < 0) {
pr_err("%s: read curr reg fail", __func__);
curr = 0;
} else {
curr = ((ret&0x7fff)*1000)/2044;
if (ret & 0x8000)
curr *= -1;
else if ((!(a_stat & 0x0020)) && (!fuelgauge->info.flag_chg_status))
curr = 0;
}
ret = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_CURRENT_AVG);
if (ret < 0) {
pr_err("%s: read curr_avg reg fail", __func__);
curr_avg = 0;
} else {
curr_avg = ((ret&0x7fff)*1000)/2044;
if (ret & 0x8000)
curr_avg *= -1;
else if ((!(a_stat & 0x0020)) && (!fuelgauge->info.flag_chg_status))
curr_avg = 0;
}
if (a_stat & 0x0400) {
curr = curr * 25 / 10;
curr_avg = curr_avg * 25 / 10;
}
if (s_stat & 0x8000) {
curr = 0;
curr_avg = 0;
}
fuelgauge->info.batt_current = curr;
fuelgauge->info.batt_avgcurrent = curr_avg;
return curr;
}
static int sm5714_get_temperature(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret;
int temp; /* = 250; 250 means 25.0oC*/
ret = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_TEMPERATURE);
if (ret < 0) {
pr_err("%s: read temp reg fail", __func__);
temp = 0;
} else {
temp = (((ret&0x7FFF)*10) * 2989) >> 11 >> 8;
if (ret&0x8000)
temp *= -1;
}
fuelgauge->info.temp_fg = temp;
return temp;
}
static int sm5714_get_cycle(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret;
int cycle;
ret = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_SOC_CYCLE);
if (ret < 0) {
pr_err("%s: read cycle reg fail", __func__);
cycle = 0;
} else {
cycle = ret&0x00FF;
}
fuelgauge->info.batt_soc_cycle = cycle;
return cycle;
}
static int sm5714_get_asoc(struct sm5714_fuelgauge_data *fuelgauge)
{
int soh, pre_soh, h_flag, c_flag, delta_t, temp;
soh = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_AGING_RATE_FILT);
pre_soh = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_USER_RESERV_2);
c_flag = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_SOC_CYCLE);
pr_info("%s : asoc = %d, ic_soh = 0x%x, pre = 0x%x, cycle = %d, t = %d\n",
__func__, fuelgauge->info.soh, soh, pre_soh, c_flag, fuelgauge->info.temperature);
soh = soh * 100 / 2048;
h_flag = (pre_soh & 0x80)>>7;
pre_soh = pre_soh & 0x7F;
c_flag = (c_flag >> 4) % 2;
delta_t = fuelgauge->info.temperature/10 - fuelgauge->info.temp_std;
if (delta_t >= 0) {
if (soh < pre_soh) {
if (c_flag != h_flag) {
pre_soh = pre_soh-1;
temp = (c_flag<<7) | pre_soh;
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_USER_RESERV_2, temp);
pr_info("%s : pre_soh update to %d, write 0x%x\n", __func__, pre_soh, temp);
}
}
}
soh = pre_soh;
fuelgauge->info.soh = soh;
return fuelgauge->info.soh;
}
static void sm5714_vbatocv_check(struct sm5714_fuelgauge_data *fuelgauge)
{
if ((fuelgauge->is_charging) && (fuelgauge->info.batt_current < (fuelgauge->info.top_off)) &&
(fuelgauge->info.batt_current > (fuelgauge->info.top_off/3)) && (fuelgauge->info.batt_soc >= 900)) {
if (abs(fuelgauge->info.batt_ocv-fuelgauge->info.batt_voltage) > 30) { /* 30mV over */
fuelgauge->info.iocv_error_count++;
}
pr_info("%s: sm5714 FG iocv_error_count (%d)\n", __func__, fuelgauge->info.iocv_error_count);
if (fuelgauge->info.iocv_error_count > 3) /* prevent to overflow */
fuelgauge->info.iocv_error_count = 4;
} else {
fuelgauge->info.iocv_error_count = 0;
}
if (fuelgauge->info.iocv_error_count > 3) {
pr_info("%s: p_v - v = (%d)\n", __func__,
fuelgauge->info.p_batt_voltage - fuelgauge->info.batt_voltage);
if (abs(fuelgauge->info.p_batt_voltage - fuelgauge->info.batt_voltage) > 15) { /* 15mV over */
fuelgauge->info.iocv_error_count = 0;
} else {
/* mode change to mix RS manual mode */
pr_info("%s: mode change to mix RS manual mode\n", __func__);
/* RS manual value write */
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_MAX, fuelgauge->info.rs_value[0]+5);
}
} else {
/* voltage mode with 3.4V */
if (fuelgauge->vempty_mode != VEMPTY_MODE_HW) {
if ((fuelgauge->info.p_batt_voltage < fuelgauge->info.n_tem_poff) &&
(fuelgauge->info.batt_voltage < fuelgauge->info.n_tem_poff) &&
(!fuelgauge->is_charging)) {
pr_info("%s: mode change to normal tem mix RS manual mode\n", __func__);
/* mode change to mix RS manual mode */
/* RS manual value write */
if ((fuelgauge->info.p_batt_voltage <
(fuelgauge->info.n_tem_poff - fuelgauge->info.n_tem_poff_offset)) &&
(fuelgauge->info.batt_voltage <
(fuelgauge->info.n_tem_poff - fuelgauge->info.n_tem_poff_offset))) {
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_MAX,
fuelgauge->info.rs_value[0]+5);
} else {
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_MAX,
(fuelgauge->info.rs_value[0]<<1)+5);
}
} else {
pr_info("%s: mode change to mix RS auto mode\n", __func__);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_MAX, 0x3800);
}
} else { /* voltage mode with 3.25V, VEMPTY_MODE_HW mode */
if ((fuelgauge->info.p_batt_voltage < fuelgauge->info.l_tem_poff) &&
(fuelgauge->info.batt_voltage < fuelgauge->info.l_tem_poff) &&
(!fuelgauge->is_charging)) {
pr_info("%s: mode change to normal tem mix RS manual mode\n", __func__);
/* mode change to mix RS manual mode */
/* RS manual value write */
if ((fuelgauge->info.p_batt_voltage <
(fuelgauge->info.l_tem_poff - fuelgauge->info.l_tem_poff_offset)) &&
(fuelgauge->info.batt_voltage <
(fuelgauge->info.l_tem_poff - fuelgauge->info.l_tem_poff_offset))) {
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_MAX,
fuelgauge->info.rs_value[0]+5);
} else {
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_MAX,
(fuelgauge->info.rs_value[0]<<1)+5);
}
} else {
pr_info("%s: mode change to mix RS auto mode\n", __func__);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_MAX, 0x3800);
}
}
}
fuelgauge->info.p_batt_voltage = fuelgauge->info.batt_voltage;
fuelgauge->info.p_batt_current = fuelgauge->info.batt_current;
/* iocv error case cover end */
}
static void sm5714_ical_setup(struct sm5714_fuelgauge_data *fuelgauge)
{
if (!fuelgauge->info.i_dp_default) {
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_DP_IOFFSET, fuelgauge->info.dp_i_off);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_DP_IPSLOPE, fuelgauge->info.dp_i_pslo);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_DP_INSLOPE, fuelgauge->info.dp_i_nslo);
}
if (!fuelgauge->info.i_alg_default) {
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_ALG_IOFFSET, fuelgauge->info.alg_i_off);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_ALG_IPSLOPE, fuelgauge->info.alg_i_pslo);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_ALG_INSLOPE, fuelgauge->info.alg_i_nslo);
}
pr_info("%s: dp %d: <0x%x 0x%x 0x%x> alg %d: <0x%x 0x%x 0x%x>\n", __func__,
fuelgauge->info.i_dp_default,
fuelgauge->info.dp_i_off, fuelgauge->info.dp_i_pslo, fuelgauge->info.dp_i_nslo,
fuelgauge->info.i_alg_default,
fuelgauge->info.alg_i_off, fuelgauge->info.alg_i_pslo, fuelgauge->info.alg_i_nslo);
}
static void sm5714_vcal_setup(struct sm5714_fuelgauge_data *fuelgauge)
{
if (!fuelgauge->info.v_default) {
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_VOFFSET, fuelgauge->info.v_off);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_VSLOPE, fuelgauge->info.v_slo);
}
if (!fuelgauge->info.vt_default) {
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_VVT, fuelgauge->info.vtt);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_IVT, fuelgauge->info.ivt);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_IVV, fuelgauge->info.ivv);
}
pr_info("%s: vcal %d: <0x%x 0x%x> T %d: <0x%x 0x%x 0x%x>\n",
__func__,
fuelgauge->info.v_default, fuelgauge->info.v_off, fuelgauge->info.v_slo,
fuelgauge->info.vt_default, fuelgauge->info.vtt, fuelgauge->info.ivt, fuelgauge->info.ivv);
}
static int sm5714_fg_verified_write_word(struct i2c_client *client,
u8 reg_addr, u16 data)
{
int ret;
ret = sm5714_write_word(client, reg_addr, data);
if (ret < 0) {
msleep(50);
pr_info("1st fail i2c write %s: ret = %d, addr = 0x%x, data = 0x%x\n",
__func__, ret, reg_addr, data);
ret = sm5714_write_word(client, reg_addr, data);
if (ret < 0) {
msleep(50);
pr_info("2nd fail i2c write %s: ret = %d, addr = 0x%x, data = 0x%x\n",
__func__, ret, reg_addr, data);
ret = sm5714_write_word(client, reg_addr, data);
if (ret < 0) {
pr_info("3rd fail i2c write %s: ret = %d, addr = 0x%x, data = 0x%x\n",
__func__, ret, reg_addr, data);
}
}
}
return ret;
}
int sm5714_fg_calculate_iocv(struct sm5714_fuelgauge_data *fuelgauge)
{
bool only_lb = false, sign_i_offset = 0; /*valid_cb=false, */
int roop_start = 0, roop_max = 0, i = 0, cb_last_index = 0, cb_pre_last_index = 0;
int lb_v_buffer[FG_INIT_B_LEN+1] = {0, 0, 0, 0, 0, 0, 0, 0};
int lb_i_buffer[FG_INIT_B_LEN+1] = {0, 0, 0, 0, 0, 0, 0, 0};
int cb_v_buffer[FG_INIT_B_LEN+1] = {0, 0, 0, 0, 0, 0, 0, 0};
int cb_i_buffer[FG_INIT_B_LEN+1] = {0, 0, 0, 0, 0, 0, 0, 0};
int i_offset_margin = 0x14, i_vset_margin = 0x67;
int v_max = 0, v_min = 0, v_sum = 0;
int lb_v_avg = 0, cb_v_avg = 0, lb_v_set = 0, lb_i_set = 0, i_offset = 0; /* lb_v_minmax_offset=0, */
int i_max = 0, i_min = 0, i_sum = 0;
int lb_i_avg = 0, cb_i_avg = 0, cb_v_set = 0, cb_i_set = 0; /* lb_i_minmax_offset=0, */
int lb_i_p_v_min = 0, lb_i_n_v_max = 0, cb_i_p_v_min = 0, cb_i_n_v_max = 0;
int v_ret = 0, i_ret = 0, ret = 0;
ret = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_AUX_STAT);
pr_info("%s: iocv_status_read = addr : 0x%x , data : 0x%x\n", __func__, SM5714_FG_REG_AUX_STAT, ret);
/* init start */
if ((ret & 0x0800) == 0x0000)
only_lb = true;
/*
* if ((ret & 0x3000) == 0x3000)
* valid_cb = true;
*/
/* init end */
/* lb get start */
roop_max = (ret & 0xF000)>>12;
if (roop_max < 3) {
pr_info("%s: Not enough linear buffer(%d)\n", __func__, roop_max);
ret = ((sm5714_get_vbat(fuelgauge) << 8) / 125);
return ret;
}
if (roop_max > FG_INIT_B_LEN+1)
roop_max = FG_INIT_B_LEN+1;
roop_start = SM5714_FG_ADDR_SRAM_START_LB_V;
for (i = roop_start; i < roop_start + roop_max; i++) {
v_ret = sm5714_fg_read_sram(fuelgauge, i);
i_ret = sm5714_fg_read_sram(fuelgauge, i+0x10);
if ((i_ret&0x8000) == 0x8000)
i_ret = -(i_ret&0x7FFF);
lb_v_buffer[i-roop_start] = v_ret;
lb_i_buffer[i-roop_start] = i_ret;
if (i == roop_start) {
v_max = v_ret;
v_min = v_ret;
v_sum = v_ret;
i_max = i_ret;
i_min = i_ret;
i_sum = i_ret;
} else {
if (v_ret > v_max)
v_max = v_ret;
else if (v_ret < v_min)
v_min = v_ret;
v_sum = v_sum + v_ret;
if (i_ret > i_max)
i_max = i_ret;
else if (i_ret < i_min)
i_min = i_ret;
i_sum = i_sum + i_ret;
}
if (abs(i_ret) > i_vset_margin) {
if (i_ret > 0) {
if (lb_i_p_v_min == 0) {
lb_i_p_v_min = v_ret;
} else {
if (v_ret < lb_i_p_v_min)
lb_i_p_v_min = v_ret;
}
} else {
if (lb_i_n_v_max == 0) {
lb_i_n_v_max = v_ret;
} else {
if (v_ret > lb_i_n_v_max)
lb_i_n_v_max = v_ret;
}
}
}
}
v_sum = v_sum - v_max - v_min;
i_sum = i_sum - i_max - i_min;
/*
* lb_v_minmax_offset = v_max - v_min;
* lb_i_minmax_offset = i_max - i_min;
*/
lb_v_avg = v_sum / (roop_max-2);
lb_i_avg = i_sum / (roop_max-2);
/* lb get end */
/* lb_vset start */
if (abs(lb_i_buffer[roop_max-1]) < i_vset_margin) {
if (abs(lb_i_buffer[roop_max-2]) < i_vset_margin) {
lb_v_set = MAXVAL(lb_v_buffer[roop_max-2], lb_v_buffer[roop_max-1]);
if (abs(lb_i_buffer[roop_max-3]) < i_vset_margin)
lb_v_set = MAXVAL(lb_v_buffer[roop_max-3], lb_v_set);
} else {
lb_v_set = lb_v_buffer[roop_max-1];
}
} else {
lb_v_set = lb_v_avg;
}
if (lb_i_n_v_max > 0)
lb_v_set = MAXVAL(lb_i_n_v_max, lb_v_set);
/*
* else if (lb_i_p_v_min > 0) {
* lb_v_set = MINVAL(lb_i_p_v_min, lb_v_set);
* }
* lb_vset end
*
* lb offset make start
*/
if (roop_max > 3)
lb_i_set = (lb_i_buffer[2] + lb_i_buffer[3]) / 2;
if ((abs(lb_i_buffer[roop_max-1]) < i_offset_margin) && (abs(lb_i_set) < i_offset_margin))
lb_i_set = MAXVAL(lb_i_buffer[roop_max-1], lb_i_set);
else if (abs(lb_i_buffer[roop_max-1]) < i_offset_margin)
lb_i_set = lb_i_buffer[roop_max-1];
else if (abs(lb_i_set) < i_offset_margin)
i_offset = lb_i_set;
else
lb_i_set = 0;
i_offset = lb_i_set;
i_offset = i_offset + 4; /* add extra offset */
if (i_offset <= 0) {
sign_i_offset = 1;
#ifdef IGNORE_N_I_OFFSET
i_offset = 0;
#else
i_offset = -i_offset;
#endif
}
i_offset = i_offset>>1;
if (sign_i_offset == 0)
i_offset = i_offset|0x0080;
i_offset = i_offset | i_offset<<8;
pr_info("%s: iocv_l_max=0x%x, iocv_l_min=0x%x, iocv_l_avg=0x%x, lb_v_set=0x%x, roop_max=%d\n",
__func__, v_max, v_min, lb_v_avg, lb_v_set, roop_max);
pr_info("%s: ioci_l_max=0x%x, ioci_l_min=0x%x, ioci_l_avg=0x%x, lb_i_set=0x%x, i_offset=0x%x, sign_i_offset=%d\n",
__func__, i_max, i_min, lb_i_avg, lb_i_set, i_offset, sign_i_offset);
if (!only_lb) {
/* cb get start */
roop_start = SM5714_FG_ADDR_SRAM_START_CB_V;
roop_max = FG_INIT_B_LEN+1;
for (i = roop_start; i < roop_start + roop_max; i++) {
v_ret = sm5714_fg_read_sram(fuelgauge, i);
i_ret = sm5714_fg_read_sram(fuelgauge, i+0x10);
if ((i_ret&0x8000) == 0x8000)
i_ret = -(i_ret&0x7FFF);
cb_v_buffer[i-roop_start] = v_ret;
cb_i_buffer[i-roop_start] = i_ret;
if (i == roop_start) {
v_max = v_ret;
v_min = v_ret;
v_sum = v_ret;
i_max = i_ret;
i_min = i_ret;
i_sum = i_ret;
} else {
if (v_ret > v_max)
v_max = v_ret;
else if (v_ret < v_min)
v_min = v_ret;
v_sum = v_sum + v_ret;
if (i_ret > i_max)
i_max = i_ret;
else if (i_ret < i_min)
i_min = i_ret;
i_sum = i_sum + i_ret;
}
if (abs(i_ret) > i_vset_margin) {
if (i_ret > 0) {
if (cb_i_p_v_min == 0)
cb_i_p_v_min = v_ret;
else if (v_ret < cb_i_p_v_min)
cb_i_p_v_min = v_ret;
} else {
if (cb_i_n_v_max == 0)
cb_i_n_v_max = v_ret;
else if (v_ret > cb_i_n_v_max)
cb_i_n_v_max = v_ret;
}
}
}
v_sum = v_sum - v_max - v_min;
i_sum = i_sum - i_max - i_min;
cb_v_avg = v_sum / (roop_max-2);
cb_i_avg = i_sum / (roop_max-2);
/* cb get end */
/* cb_vset start */
cb_last_index = ((ret & 0xF000)>>12)-(FG_INIT_B_LEN+1)-1; /*-8-1 */
if (cb_last_index < 0)
cb_last_index = FG_INIT_B_LEN;
for (i = roop_max; i > 0; i--) {
if (abs(cb_i_buffer[cb_last_index]) < i_vset_margin) {
cb_v_set = cb_v_buffer[cb_last_index];
if (abs(cb_i_buffer[cb_last_index]) < i_offset_margin)
cb_i_set = cb_i_buffer[cb_last_index];
cb_pre_last_index = cb_last_index - 1;
if (cb_pre_last_index < 0)
cb_pre_last_index = FG_INIT_B_LEN;
if (abs(cb_i_buffer[cb_pre_last_index]) < i_vset_margin) {
cb_v_set = MAXVAL(cb_v_buffer[cb_pre_last_index], cb_v_set);
if (abs(cb_i_buffer[cb_pre_last_index]) < i_offset_margin)
cb_i_set = MAXVAL(cb_i_buffer[cb_pre_last_index], cb_i_set);
}
} else {
cb_last_index--;
if (cb_last_index < 0)
cb_last_index = FG_INIT_B_LEN;
}
}
if (cb_v_set == 0) {
cb_v_set = cb_v_avg;
if (cb_i_set == 0)
cb_i_set = cb_i_avg;
}
if (cb_i_n_v_max > 0)
cb_v_set = MAXVAL(cb_i_n_v_max, cb_v_set);
/*
* else if(cb_i_p_v_min > 0)
* cb_v_set = MINVAL(cb_i_p_v_min, cb_v_set);
*
* cb_vset end
*
* cb offset make start
*/
if (abs(cb_i_set) < i_offset_margin) {
if (cb_i_set > lb_i_set) {
i_offset = cb_i_set;
i_offset = i_offset + 4; /* add extra offset */
if (i_offset <= 0) {
sign_i_offset = 1;
#ifdef IGNORE_N_I_OFFSET
i_offset = 0;
#else
i_offset = -i_offset;
#endif
}
i_offset = i_offset>>1;
if (sign_i_offset == 0)
i_offset = i_offset|0x0080;
i_offset = i_offset | i_offset<<8;
}
}
/* cb offset make end */
pr_info("%s: iocv_c_max=0x%x, iocv_c_min=0x%x, iocv_c_avg=0x%x, cb_v_set=0x%x, cb_last_index=%d\n",
__func__, v_max, v_min, cb_v_avg, cb_v_set, cb_last_index);
pr_info("%s: ioci_c_max=0x%x, ioci_c_min=0x%x, ioci_c_avg=0x%x, cb_i_set=0x%x, i_offset=0x%x, sign_i_offset=%d\n",
__func__, i_max, i_min, cb_i_avg, cb_i_set, i_offset, sign_i_offset);
}
/* final set */
if ((abs(cb_i_set) > i_vset_margin) || only_lb)
ret = MAXVAL(lb_v_set, cb_i_n_v_max);
else
ret = cb_v_set;
if (ret > fuelgauge->info.battery_table[DISCHARGE_TABLE][FG_TABLE_LEN-1]) {
pr_info("%s: iocv ret change 0x%x -> 0x%x\n", __func__,
ret, fuelgauge->info.battery_table[DISCHARGE_TABLE][FG_TABLE_LEN-1]);
ret = fuelgauge->info.battery_table[DISCHARGE_TABLE][FG_TABLE_LEN-1];
} else if (ret < fuelgauge->info.battery_table[DISCHARGE_TABLE][0]) {
pr_info("%s: iocv ret change 0x%x -> 0x%x\n", __func__,
ret, (fuelgauge->info.battery_table[DISCHARGE_TABLE][0] + 0x10));
ret = fuelgauge->info.battery_table[DISCHARGE_TABLE][0] + 0x10;
}
return ret;
}
void sm5714_set_aux_ctrl_cfg(struct sm5714_fuelgauge_data *fuelgauge)
{
int rsmanvalue;
sm5714_write_word(fuelgauge->i2c, SM5714_FG_REG_AUX_CTRL1, fuelgauge->info.aux_ctrl[0]);
sm5714_write_word(fuelgauge->i2c, SM5714_FG_REG_AUX_CTRL2, fuelgauge->info.aux_ctrl[1]);
rsmanvalue = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_AUTO_MAN_VALUE);
pr_info("%s: aux_ctrl1 = 0x%x, aux_ctrl2 = 0x%x, rsmanvalue = 0x%x\n",
__func__, fuelgauge->info.aux_ctrl[0], fuelgauge->info.aux_ctrl[1], rsmanvalue);
}
int get_v_max_index_by_cycle(struct sm5714_fuelgauge_data *fuelgauge)
{
int cycle_index = 0, len;
for (len = fuelgauge->pdata->num_age_step-1; len >= 0; --len) {
if (fuelgauge->chg_full_soc == fuelgauge->pdata->age_data_soc[len]) {
cycle_index = len;
break;
}
}
pr_info("%s: chg_full_soc = %d, index = %d\n", __func__, fuelgauge->chg_full_soc, cycle_index);
return cycle_index;
}
static bool sm5714_check_jig_status(struct sm5714_fuelgauge_data *fuelgauge)
{
bool ret = false;
if (fuelgauge->pdata->jig_gpio) {
if (fuelgauge->pdata->jig_low_active)
ret = !gpio_get_value(fuelgauge->pdata->jig_gpio);
else
ret = gpio_get_value(fuelgauge->pdata->jig_gpio);
}
pr_info("%s: jig_gpio(%d), ret(%d)\n",
__func__, fuelgauge->pdata->jig_gpio, ret);
return ret;
}
static bool sm5714_fg_reg_init(struct sm5714_fuelgauge_data *fuelgauge, bool is_surge)
{
int i, j, k, value, ret = 0;
uint8_t table_reg;
int write_table[TABLE_MAX][FG_TABLE_LEN+1];
pr_info("%s: START!!\n", __func__);
/* start first param_ctrl unlock */
sm5714_write_word(fuelgauge->i2c, SM5714_FG_REG_TABLE_UNLOCK, FG_PARAM_UNLOCK_CODE);
/* CAP write */
i = get_v_max_index_by_cycle(fuelgauge);
pr_info("%s: v_max_now is change %x -> %x\n", __func__,
fuelgauge->info.v_max_now, fuelgauge->info.v_max_table[i]);
pr_info("%s: q_max_now is change %x -> %x\n", __func__,
fuelgauge->info.q_max_now, fuelgauge->info.q_max_table[i]);
fuelgauge->info.v_max_now = fuelgauge->info.v_max_table[i];
fuelgauge->info.q_max_now = fuelgauge->info.q_max_table[i];
fuelgauge->info.cap = fuelgauge->info.q_max_now;
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_Q_MAX, fuelgauge->info.cap);
pr_info("%s: SM5714_FG_ADDR_SRAM_Q_MAX 0x%x\n",
__func__, fuelgauge->info.cap);
for (i = 0; i < TABLE_MAX; i++) {
for (j = 0; j <= FG_TABLE_LEN; j++) {
if (i == SOC_TABLE) {
write_table[i][j] = (fuelgauge->info.battery_table[i][j] * 2) -
(fuelgauge->info.battery_table[i][j] * fuelgauge->info.q_max_now /
fuelgauge->info.maxcap);
if (j == FG_TABLE_LEN) {
write_table[i][FG_TABLE_LEN-1] = 100*256;
write_table[i][FG_TABLE_LEN] = 100*256+26;
}
} else {
write_table[i][j] = fuelgauge->info.battery_table[i][j];
if (j == FG_TABLE_LEN-1) {
write_table[i][FG_TABLE_LEN-1] = fuelgauge->info.v_max_now;
if (write_table[i][FG_TABLE_LEN-1] < write_table[i][FG_TABLE_LEN-2]) {
write_table[i][FG_TABLE_LEN-2] =
write_table[i][FG_TABLE_LEN-1] - 0x18; // ~11.7mV
write_table[SOC_TABLE][FG_TABLE_LEN-2] =
(write_table[SOC_TABLE][FG_TABLE_LEN-1]*99)/100;
}
}
}
}
}
for (i = 0; i < TABLE_MAX; i++) {
table_reg = SM5714_FG_ADDR_TABLE0_0 + (i*(FG_TABLE_LEN+1));
for (j = 0; j <= FG_TABLE_LEN; j++) {
sm5714_fg_write_sram(fuelgauge, (table_reg + j), write_table[i][j]);
pr_info("%s: TABLE write [%d][%d] = 0x%x : 0x%x\n",
__func__, i, j, (table_reg + j), write_table[i][j]);
}
}
/*for verify table data write*/
for (i = 0; i < TABLE_MAX; i++) {
table_reg = SM5714_FG_ADDR_TABLE0_0 + (i*(FG_TABLE_LEN+1));
for (j = 0; j <= FG_TABLE_LEN; j++) {
if (write_table[i][j] == sm5714_fg_read_sram(fuelgauge, (table_reg + j))) {
pr_info("%s: TABLE data verify OK [%d][%d] = 0x%x : 0x%x\n",
__func__, i, j, (table_reg + j), write_table[i][j]);
} else {
ret |= I2C_ERROR_CHECK;
for (k = 1; k <= I2C_ERROR_COUNT_MAX; k++) {
pr_info("%s: TABLE write data ERROR!!!! rewrite [%d][%d] = 0x%x : 0x%x, count=%d\n",
__func__, i, j, (table_reg + j), write_table[i][j], k);
sm5714_fg_write_sram(fuelgauge, (table_reg + j), write_table[i][j]);
msleep(30);
if (write_table[i][j] == sm5714_fg_read_sram(fuelgauge, (table_reg + j))) {
pr_info("%s: TABLE rewrite OK [%d][%d] = 0x%x : 0x%x, count=%d\n",
__func__, i, j, (table_reg + j), write_table[i][j], k);
break;
}
if (k == I2C_ERROR_COUNT_MAX)
ret |= I2C_ERROR_REMAIN;
}
}
}
}
table_reg = SM5714_FG_ADDR_TABLE2_0;
for (j = 0; j <= FG_ADD_TABLE_LEN; j++) {
sm5714_fg_write_sram(fuelgauge, (table_reg + j), fuelgauge->info.battery_table[i][j]);
pr_info("%s: TABLE write OK [%d][%d] = 0x%x : 0x%x\n",
__func__, i, j, (table_reg + j), fuelgauge->info.battery_table[i][j]);
}
/* RS write */
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_MIN, fuelgauge->info.rs_value[1]);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_MAX, fuelgauge->info.rs_value[2]);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_FACTOR, fuelgauge->info.rs_value[3]);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_CHG_FACTOR, fuelgauge->info.rs_value[4]);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_DISCHG_FACTOR, fuelgauge->info.rs_value[5]);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_RS_AUTO_MAN_VALUE, fuelgauge->info.rs_value[6]);
pr_info("%s: spare=0x%x, MIN=0x%x, MAX=0x%x, FACTOR=0x%x, C_FACT=0x%x, D_FACT=0x%x, MAN_VALUE=0x%x\n", __func__,
fuelgauge->info.rs_value[0], fuelgauge->info.rs_value[1], fuelgauge->info.rs_value[2],
fuelgauge->info.rs_value[3], fuelgauge->info.rs_value[4], fuelgauge->info.rs_value[5],
fuelgauge->info.rs_value[6]);
/* surge reset defence */
if (is_surge) {
value = ((fuelgauge->info.batt_ocv<<8)/125);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_USER_RESERV_2, 0);
} else {
/* auto value change to vsys by jig */
if (sm5714_get_facmode()
&& !(sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SYSTEM_STATUS) & 0x8000)) {
pr_info("%s: nENQ4 low but factory mode, iocv is vsys read value\n", __func__);
value = ((sm5714_get_vbat(fuelgauge)<<8)/125);
} else {
pr_info("%s: iocv is buffer value\n", __func__);
value = sm5714_fg_calculate_iocv(fuelgauge);
}
}
usleep_range(10000, 11000);
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_INIT_OCV, value);
pr_info("%s: IOCV_MAN_WRITE = %d : 0x%x\n", __func__, SM5714_FG_ADDR_SRAM_INIT_OCV, value);
/* LOCK */
value = FG_PARAM_LOCK_CODE;
sm5714_write_word(fuelgauge->i2c, SM5714_FG_REG_TABLE_UNLOCK, value);
pr_info("%s: LAST PARAM CTRL VALUE = 0x%x : 0x%x\n", __func__, SM5714_FG_REG_TABLE_UNLOCK, value);
/* init delay */
msleep(20);
/* write batt data version */
ret |= (fuelgauge->info.data_ver << 4) & DATA_VERSION;
if (sm5714_check_jig_status(fuelgauge))
ret |= JIG_CONNECTED;
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_USER_RESERV_1, ret);
pr_info("%s: RESERVED = 0x%x : 0x%x\n", __func__, SM5714_FG_ADDR_SRAM_USER_RESERV_1, ret);
return 1;
}
static int sm5714_abnormal_reset_check(struct sm5714_fuelgauge_data *fuelgauge)
{
int cntl_read;
/* abnormal case process */
if (sm5714_fg_check_reg_init_need(fuelgauge)) {
cntl_read = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_CTRL);
pr_info("%s: SM5714 FG abnormal case!!!! SM5714_FG_REG_CTRL : 0x%x, is_FG_initialised : %d\n", __func__,
cntl_read, fuelgauge->info.is_FG_initialised);
if (fuelgauge->info.is_FG_initialised == 1) {
/* SW reset code */
fuelgauge->info.is_FG_initialised = 0;
if (sm5714_fg_verified_write_word(fuelgauge->i2c, SM5714_FG_REG_RESET, SW_RESET_OTP_CODE) < 0)
pr_info("%s: Warning!!!! SM5714 FG abnormal case.... SW reset FAIL\n", __func__);
else
pr_info("%s: SM5714 FG abnormal case.... SW reset OK\n", __func__);
/* delay 100ms */
msleep(100);
/* init code */
sm5714_fg_init(fuelgauge, true);
}
return FG_ABNORMAL_RESET;
}
return 0;
}
static unsigned int sm5714_get_device_id(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret;
ret = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_DEVICE_ID);
sm5714_device_id = ret;
pr_info("%s: SM5714 vender_id = 0x%x\n", __func__, ret);
return ret;
}
int sm5714_call_fg_device_id(void)
{
pr_info("%s: extern call SM5714 fg_device_id = 0x%x\n", __func__, sm5714_device_id);
return sm5714_device_id;
}
unsigned int sm5714_get_soc(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret;
unsigned int soc;
int retry_cnt = 2;
while (retry_cnt-- > 0) {
ret = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_SOC);
if (ret < 0) {
pr_err("%s: Warning!!!! read soc reg fail\n", __func__);
soc = 500;
} else {
soc = (ret * 10) >> 8;
if (ret > 0x63ff) {
if (((fuelgauge->info.batt_avgcurrent - fuelgauge->info.top_off) >
(fuelgauge->info.top_off/5)) ||
(fuelgauge->info.batt_avgcurrent <= 0)) {
if (fuelgauge->info.batt_soc == 999)
if (soc > 1)
soc = soc - 1;
}
}
}
/* for preventing soc jumping issue, read soc 1 more time */
if (abs(fuelgauge->info.batt_soc - (int)soc) > 50) {
if (sm5714_get_facmode()
|| (sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SYSTEM_STATUS) & 0x8000)) {
break;
}
pr_info("%s: Warning!!!! prev batt_soc = %d, current batt_soc = %d, ret = 0x%x\n",
__func__, fuelgauge->info.batt_soc, soc, ret);
} else {
break;
}
}
if (sm5714_get_facmode()
&& !(sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SYSTEM_STATUS) & 0x8000)) {
pr_info("%s: nENQ4 low but factory mode, SOC = %d, return pre_SOC = %d\n", __func__,
soc, fuelgauge->info.batt_soc);
return fuelgauge->info.batt_soc;
}
if (sm5714_abnormal_reset_check(fuelgauge) < 0) {
pr_info("%s: FG init ERROR!! pre_SOC returned!!, read_SOC = %d, pre_SOC = %d\n", __func__,
soc, fuelgauge->info.batt_soc);
return fuelgauge->info.batt_soc;
}
/* ocv update */
sm5714_get_ocv(fuelgauge);
/* for low temp power off test */
if (fuelgauge->info.volt_alert_flag && (fuelgauge->info.temperature < -100)) {
pr_info("%s: volt_alert_flag is TRUE!!!! SOC make force ZERO!!!!\n", __func__);
fuelgauge->info.batt_soc = 0;
pr_info("%s: batt_soc = %d, soc = %d, ret = 0x%x\n", __func__, fuelgauge->info.batt_soc, soc, ret);
return 0;
}
fuelgauge->info.batt_soc = soc;
pr_info("%s: batt_soc = %d, soc = %d, ret = 0x%x\n", __func__, fuelgauge->info.batt_soc, soc, ret);
return soc;
}
static void sm5714_update_all_value(struct sm5714_fuelgauge_data *fuelgauge)
{
union power_supply_propval value;
fuelgauge->is_charging = (fuelgauge->info.flag_charge_health |
fuelgauge->ta_exist) && (fuelgauge->info.batt_current >= 30);
/* check charger status */
psy_do_property("battery", get,
POWER_SUPPLY_PROP_STATUS, value);
fuelgauge->info.flag_full_charge =
(value.intval == POWER_SUPPLY_STATUS_FULL) ? 1 : 0;
fuelgauge->info.flag_chg_status =
(value.intval == POWER_SUPPLY_STATUS_CHARGING) ? 1 : 0;
/* vbat */
sm5714_get_vbat(fuelgauge);
/* current */
sm5714_get_curr(fuelgauge);
/* temperature */
sm5714_get_temperature(fuelgauge);
/* cycle */
sm5714_get_cycle(fuelgauge);
/* carc */
sm5714_vbatocv_check(fuelgauge);
/* soc */
sm5714_get_soc(fuelgauge);
pr_info("%s: chg_h=%d, chg_f=%d, chg_s=%d, is_chg=%d, ta_exist=%d\n",
__func__, fuelgauge->info.flag_charge_health, fuelgauge->info.flag_full_charge,
fuelgauge->info.flag_chg_status, fuelgauge->is_charging, fuelgauge->ta_exist);
pr_info("%s: v=%d, v_avg=%d, i=%d, i_avg=%d, ocv=%d, fg_t=%d, b_t=%d, cycle=%d, soc=%d\n",
__func__, fuelgauge->info.batt_voltage, fuelgauge->info.batt_avgvoltage,
fuelgauge->info.batt_current, fuelgauge->info.batt_avgcurrent, fuelgauge->info.batt_ocv,
fuelgauge->info.temp_fg, fuelgauge->info.temperature, fuelgauge->info.batt_soc_cycle,
fuelgauge->info.batt_soc);
}
static int sm5714_fg_set_jig_mode_real_vbat(struct sm5714_fuelgauge_data *fuelgauge, int meas_mode)
{
int stat;
fuelgauge->isjigmoderealvbat = false;
if (sm5714_fg_check_reg_init_need(fuelgauge)) {
pr_info("%s: FG init fail!!\n", __func__);
return -1;
}
/** meas_mode = 0 is inbat mode with jig **/
if (meas_mode == 0) {
stat = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SYSTEM_STATUS);
if (stat & 0x8000) {
fuelgauge->isjigmoderealvbat = true;
pr_info("%s: FG check jig_ON!! and after read real VBAT!!\n", __func__);
} else
pr_info("%s: isjigmoderealvbat = 1 but FG check nENQ4 LOW!! check jig!!\n", __func__);
} else
pr_info("%s: meas_mode = 1, isjigmoderealvbat = false!!\n", __func__);
return 0;
}
void sm5714_fg_reset_capacity_by_jig_connection(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret;
ret = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_USER_RESERV_1);
ret &= ~JIG_CONNECTED;
if (sm5714_get_facmode()
| (sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SYSTEM_STATUS) & 0x8000))
ret |= JIG_CONNECTED;
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_USER_RESERV_1, ret);
pr_info("%s: set JIG_CONNECTED(0x%04x) (Jig Connection or bypass), fg_reset after reboot: %d\n",
__func__, ret, ret & JIG_CONNECTED);
}
int sm5714_fg_alert_init(struct sm5714_fuelgauge_data *fuelgauge, int soc)
{
int ret;
int value_soc_alarm;
fuelgauge->is_fuel_alerted = false;
/* check status */
ret = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_STATUS);
if (ret < 0) {
pr_err("%s: Failed to read SM5714_FG_REG_STATUS\n", __func__);
return -1;
}
value_soc_alarm = soc;
pr_info("%s: fg_irq= 0x%x, INT_STATUS=0x%x, SOC_ALARM=0x%x\n",
__func__, fuelgauge->fg_irq, ret, value_soc_alarm);
return 1;
}
static void sm5714_asoc_init(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret, temp;
ret = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_USER_RESERV_2);
temp = ret;
ret = ret & 0x7F;
if (ret == 0) {
fuelgauge->info.soh = 100;
temp = temp & 0x80;
temp = temp | fuelgauge->info.soh;
sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_USER_RESERV_2, temp);
pr_info("%s : soh reset %d, write 0x%x\n", __func__, fuelgauge->info.soh, temp);
} else {
fuelgauge->info.soh = ret;
pr_info("%s asoc restore : %d\n", __func__, fuelgauge->info.soh);
}
}
static irqreturn_t sm5714_jig_irq_thread(int irq, void *irq_data)
{
struct sm5714_fuelgauge_data *fuelgauge = irq_data;
if (sm5714_check_jig_status(fuelgauge))
sm5714_fg_reset_capacity_by_jig_connection(fuelgauge);
else
pr_info("%s: jig removed\n", __func__);
return IRQ_HANDLED;
}
static void sm5714_fg_iocv_buffer_read(struct sm5714_fuelgauge_data *fuelgauge)
{
int ret0, ret1, ret2, ret3, ret4, ret5, ret6, ret7;
ret0 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_V);
ret1 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_V+1);
ret2 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_V+2);
ret3 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_V+3);
ret4 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_V+4);
ret5 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_V+5);
ret6 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_V+6);
ret7 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_V+7);
pr_info("%s: sm5714 FG buffer lb_V = 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",
__func__, ret0, ret1, ret2, ret3, ret4, ret5, ret6, ret7);
ret0 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_V);
ret1 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_V+1);
ret2 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_V+2);
ret3 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_V+3);
ret4 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_V+4);
ret5 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_V+5);
ret6 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_V+6);
ret7 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_V+7);
pr_info("%s: sm5714 FG buffer cb_V = 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",
__func__, ret0, ret1, ret2, ret3, ret4, ret5, ret6, ret7);
ret0 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_I);
ret1 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_I+1);
ret2 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_I+2);
ret3 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_I+3);
ret4 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_I+4);
ret5 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_I+5);
ret6 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_I+6);
ret7 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_LB_I+7);
pr_info("%s: sm5714 FG buffer lb_I = 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",
__func__, ret0, ret1, ret2, ret3, ret4, ret5, ret6, ret7);
ret0 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_I);
ret1 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_I+1);
ret2 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_I+2);
ret3 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_I+3);
ret4 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_I+4);
ret5 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_I+5);
ret6 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_I+6);
ret7 = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_START_CB_I+7);
pr_info("%s: sm5714 FG buffer cb_I = 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",
__func__, ret0, ret1, ret2, ret3, ret4, ret5, ret6, ret7);
}
static bool sm5714_fg_init(struct sm5714_fuelgauge_data *fuelgauge, bool is_surge)
{
int error_remain, ret;
fuelgauge->info.is_FG_initialised = 0;
if (sm5714_get_device_id(fuelgauge) < 0)
return false;
if (fuelgauge->pdata->jig_gpio) {
int ret;
/* if (fuelgauge->pdata->jig_low_active) { */
if (0) {
ret = request_threaded_irq(fuelgauge->pdata->jig_irq,
NULL, sm5714_jig_irq_thread,
IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
"jig-irq", fuelgauge);
} else {
ret = request_threaded_irq(fuelgauge->pdata->jig_irq,
NULL, sm5714_jig_irq_thread,
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
"jig-irq", fuelgauge);
}
if (ret) {
pr_info("%s: Failed to Request IRQ\n",
__func__);
}
pr_info("%s: jig_result : %d\n", __func__, sm5714_check_jig_status(fuelgauge));
/* initial check for the JIG */
if (sm5714_check_jig_status(fuelgauge))
sm5714_fg_reset_capacity_by_jig_connection(fuelgauge);
}
fuelgauge->info.q_max_now = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_Q_MAX);
pr_info("%s: q_max_now = 0x%x\n", __func__, fuelgauge->info.q_max_now);
ret = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_USER_RESERV_1);
error_remain = (ret & I2C_ERROR_REMAIN) ? 1 : 0;
pr_info("%s: reserv_1 = 0x%x\n", __func__, ret);
if (sm5714_fg_check_reg_init_need(fuelgauge) || error_remain) {
if (sm5714_fg_reg_init(fuelgauge, is_surge))
pr_info("%s: boot time kernel init DONE!\n", __func__);
else
pr_info("%s: ERROR!! boot time kernel init ERROR!!\n", __func__);
}
// factory mode initial SOC make;
if (sm5714_get_facmode()
&& !(sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_SYSTEM_STATUS) & 0x8000)) {
ret = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_SOC);
if (ret < 0) {
pr_err("%s: Warning!!!! read soc reg fail\n", __func__);
fuelgauge->info.batt_soc = 500;
} else {
fuelgauge->info.batt_soc = (ret * 10) >> 8;
}
pr_info("%s: nENQ4 low but factory mode, initial SOC make= %d\n", __func__, fuelgauge->info.batt_soc);
}
// curr_cal setup
sm5714_ical_setup(fuelgauge);
sm5714_vcal_setup(fuelgauge);
/* write aux_ctrl cfg */
sm5714_set_aux_ctrl_cfg(fuelgauge);
sm5714_asoc_init(fuelgauge);
fuelgauge->info.is_FG_initialised = 1;
sm5714_fg_iocv_buffer_read(fuelgauge);
return true;
}
bool sm5714_fg_fuelalert_init(struct sm5714_fuelgauge_data *fuelgauge,
int soc)
{
/* 1. Set sm5714 alert configuration. */
if (sm5714_fg_alert_init(fuelgauge, soc) > 0)
return true;
else
return false;
}
void sm5714_fg_fuelalert_set(struct sm5714_fuelgauge_data *fuelgauge,
int enable)
{
u16 ret;
ret = sm5714_read_word(fuelgauge->i2c, SM5714_FG_REG_STATUS);
pr_info("%s: SM5714_FG_REG_STATUS(0x%x)\n",
__func__, ret);
if (ret & ENABLE_VL_ALARM && !sm5714_get_lpmode() && !fuelgauge->is_charging) {
pr_info("%s : Battery Voltage is Very Low!! SW V EMPTY ENABLE\n", __func__);
if (fuelgauge->vempty_mode == VEMPTY_MODE_SW ||
fuelgauge->vempty_mode == VEMPTY_MODE_SW_VALERT) {
fuelgauge->vempty_mode = VEMPTY_MODE_SW_VALERT;
} else {
union power_supply_propval value;
value.intval = fuelgauge->vempty_mode;
psy_do_property("battery", set,
POWER_SUPPLY_PROP_VOLTAGE_MIN, value);
}
}
}
bool sm5714_fg_fuelalert_process(void *irq_data)
{
struct sm5714_fuelgauge_data *fuelgauge =
(struct sm5714_fuelgauge_data *)irq_data;
sm5714_fg_fuelalert_set(fuelgauge, 0);
return true;
}
bool sm5714_fg_reset(struct sm5714_fuelgauge_data *fuelgauge, bool is_quickstart)
{
if (fuelgauge->info.is_FG_initialised == 0) {
pr_info("%s: Not work reset! prev init working! return!\n", __func__);
return true;
}
pr_info("%s: Start fg reset\n", __func__);
/* SW reset code */
fuelgauge->info.is_FG_initialised = 0;
sm5714_fg_verified_write_word(fuelgauge->i2c, SM5714_FG_REG_RESET, SW_RESET_CODE);
/* delay 1000ms */
msleep(1000);
if (is_quickstart) {
if (sm5714_fg_init(fuelgauge, false)) {
pr_info("%s: Quick Start !!\n", __func__);
} else {
pr_info("%s: sm5714_fg_init ERROR!!!!\n", __func__);
return false;
}
}
else {
if (sm5714_fg_init(fuelgauge, true)) {
pr_info("%s: BATT_LONG_LIFE reset !!\n", __func__);
} else {
pr_info("%s: sm5714_fg_init ERROR!!!!\n", __func__);
return false;
}
}
pr_info("%s: End fg reset\n", __func__);
return true;
}
#if defined(CONFIG_UI_SOC_PROLONGING)
static void sm5714_fg_adjust_capacity_max(
struct sm5714_fuelgauge_data *fuelgauge, int curr_raw_soc)
{
int diff = 0;
if (fuelgauge->is_charging && fuelgauge->capacity_max_conv) {
diff = curr_raw_soc - fuelgauge->prev_raw_soc;
if ((diff >= 1) && (fuelgauge->capacity_max < fuelgauge->g_capacity_max)) {
fuelgauge->capacity_max++;
} else if ((fuelgauge->capacity_max >= fuelgauge->g_capacity_max) || (curr_raw_soc == 1000)) {
fuelgauge->g_capacity_max = 0;
fuelgauge->capacity_max_conv = false;
}
pr_info("%s: curr_raw_soc(%d) prev_raw_soc(%d) capacity_max_conv(%d) Capacity Max(%d | %d)\n",
__func__, curr_raw_soc, fuelgauge->prev_raw_soc, fuelgauge->capacity_max_conv,
fuelgauge->capacity_max, fuelgauge->g_capacity_max);
}
fuelgauge->prev_raw_soc = curr_raw_soc;
}
#endif
static void sm5714_fg_get_scaled_capacity(
struct sm5714_fuelgauge_data *fuelgauge,
union power_supply_propval *val)
{
int raw_soc = val->intval;
val->intval = (val->intval < fuelgauge->pdata->capacity_min) ?
0 : ((val->intval - fuelgauge->pdata->capacity_min) * 1000 /
(fuelgauge->capacity_max - fuelgauge->pdata->capacity_min));
pr_info("%s: capacity max (%d) scaled capacity (%d.%d) raw_soc (%d.%d)\n",
__func__, fuelgauge->capacity_max, val->intval / 10, val->intval % 10,
raw_soc / 10, raw_soc % 10);
}
/* capacity is integer */
static void sm5714_fg_get_atomic_capacity(
struct sm5714_fuelgauge_data *fuelgauge,
union power_supply_propval *val)
{
pr_debug("%s : NOW(%d), OLD(%d)\n",
__func__, val->intval, fuelgauge->capacity_old);
if (fuelgauge->pdata->capacity_calculation_type &
SEC_FUELGAUGE_CAPACITY_TYPE_ATOMIC) {
if (fuelgauge->capacity_old < val->intval)
val->intval = fuelgauge->capacity_old + 1;
else if (fuelgauge->capacity_old > val->intval)
val->intval = fuelgauge->capacity_old - 1;
}
/* keep SOC stable in abnormal status */
if (fuelgauge->pdata->capacity_calculation_type &
SEC_FUELGAUGE_CAPACITY_TYPE_SKIP_ABNORMAL) {
if (!fuelgauge->is_charging &&
fuelgauge->capacity_old < val->intval) {
pr_err("%s: capacity (old %d : new %d)\n",
__func__, fuelgauge->capacity_old, val->intval);
val->intval = fuelgauge->capacity_old;
}
}
/* updated old capacity */
fuelgauge->capacity_old = val->intval;
}
static int sm5714_fg_check_capacity_max(
int capacity_max, int cap_max, int cap_margin)
{
int cap_min = 0;
cap_min = (cap_max - cap_margin);
return (capacity_max < cap_min) ? cap_min :
((capacity_max >= cap_max) ? cap_max : capacity_max);
}
#if defined(CONFIG_UI_SOC_PROLONGING)
static void sm5714_fg_calculate_dynamic_scale(
struct sm5714_fuelgauge_data *fuelgauge, int capacity, bool scale_by_full)
{
union power_supply_propval raw_soc_val;
int min_cap = fuelgauge->pdata->capacity_max - fuelgauge->pdata->capacity_max_margin;
int scaling_factor = 1;
if ((capacity > 100) || ((capacity * 10) < min_cap)) {
pr_err("%s: invalid capacity(%d)\n", __func__, capacity);
return;
}
raw_soc_val.intval = sm5714_get_soc(fuelgauge);
if (capacity < 100)
fuelgauge->capacity_max_conv = false; //Force full sequence , need to decrease capacity_max
if ((raw_soc_val.intval < min_cap) || (fuelgauge->capacity_max_conv)) {
pr_info("%s: skip routine - raw_soc(%d), min_cap(%d), cap_max_conv(%d)\n",
__func__, raw_soc_val.intval, min_cap, fuelgauge->capacity_max_conv);
return;
}
if (capacity == 100)
scaling_factor = 2;
fuelgauge->capacity_max = (raw_soc_val.intval * 100 / (capacity + scaling_factor));
fuelgauge->capacity_old = capacity;
fuelgauge->capacity_max =
sm5714_fg_check_capacity_max(
fuelgauge->capacity_max,
fuelgauge->pdata->capacity_max,
fuelgauge->pdata->capacity_max_margin);
pr_info("%s: %d is used for capacity_max, capacity(%d)\n",
__func__, fuelgauge->capacity_max, capacity);
if ((capacity == 100) && !fuelgauge->capacity_max_conv && scale_by_full) {
fuelgauge->capacity_max_conv = true;
fuelgauge->g_capacity_max = 990;
pr_info("%s: Goal capacity max %d\n", __func__, fuelgauge->g_capacity_max);
}
}
#else
static void sm5714_fg_calculate_dynamic_scale(
struct sm5714_fuelgauge_data *fuelgauge, int capacity)
{
union power_supply_propval raw_soc_val;
int min_cap = fuelgauge->pdata->capacity_max - fuelgauge->pdata->capacity_max_margin;
if ((capacity > 100) || ((capacity * 10) < min_cap)) {
pr_err("%s: invalid capacity(%d)\n", __func__, capacity);
return;
}
raw_soc_val.intval = sm5714_get_soc(fuelgauge);
if (capacity < 100)
fuelgauge->capacity_max_updated = false; //Force full sequence , need to decrease capacity_max
if (raw_soc_val.intval < min_cap || (fuelgauge->capacity_max_updated)) {
pr_info("%s: raw soc(%d) is very low, skip routine\n",
__func__, raw_soc_val.intval);
return;
}
fuelgauge->capacity_max =
(raw_soc_val.intval * 100 / (capacity + 1));
fuelgauge->capacity_old = capacity;
fuelgauge->capacity_max =
sm5714_fg_check_capacity_max(
fuelgauge->capacity_max,
fuelgauge->pdata->capacity_max,
fuelgauge->pdata->capacity_max_margin);
fuelgauge->capacity_max_updated = true;
pr_info("%s: %d is used for capacity_max, capacity(%d)\n",
__func__, fuelgauge->capacity_max, capacity);
}
#endif
#if defined(CONFIG_EN_OOPS)
static void sm5714_set_full_value(struct sm5714_fuelgauge_data *fuelgauge,
int cable_type)
{
pr_info("%s : sm5714 todo\n",
__func__);
}
#endif
static void sm5714_fg_set_vempty(struct sm5714_fuelgauge_data *fuelgauge, int vempty_mode)
{
u16 data = 0;
u32 value_v_alarm = 0;
if (!fuelgauge->using_temp_compensation) {
pr_info("%s: does not use temp compensation, default hw vempty\n", __func__);
vempty_mode = VEMPTY_MODE_HW;
}
fuelgauge->vempty_mode = vempty_mode;
switch (vempty_mode) {
case VEMPTY_MODE_SW:
/* HW Vempty Disable */
/* set volt alert threshold */
value_v_alarm = (fuelgauge->battery_data->sw_v_empty_vol - 2700)*109/10;
if (sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_INTR_VL, value_v_alarm) < 0) {
pr_info("%s: Failed to write VALRT_THRESHOLD_REG\n", __func__);
return;
}
data = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_INTR_VL);
pr_info("%s: HW V EMPTY Disable, SW V EMPTY Enable with %d mV (%d)\n",
__func__, fuelgauge->battery_data->sw_v_empty_vol, data);
break;
default:
/* HW Vempty works together with CISD v_alarm */
value_v_alarm = (fuelgauge->battery_data->sw_v_empty_vol_cisd - 2700)*109/10;
if (sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_INTR_VL, value_v_alarm) < 0) {
pr_info("%s: Failed to write VALRT_THRESHOLD_REG\n", __func__);
return;
}
data = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_INTR_VL);
pr_info("%s: HW V EMPTY Enable, SW V EMPTY Disable %d mV (%d)\n",
__func__, fuelgauge->battery_data->sw_v_empty_vol_cisd, data);
break;
}
/* for v_alarm Hysteresis */
value_v_alarm = (fuelgauge->info.value_v_alarm_hys)*109/10;
if (sm5714_fg_write_sram(fuelgauge, SM5714_FG_ADDR_SRAM_INTR_VL_HYS, value_v_alarm) < 0) {
pr_info("%s: Failed to write VALRT_THRESHOLD_REG\n", __func__);
return;
}
data = sm5714_fg_read_sram(fuelgauge, SM5714_FG_ADDR_SRAM_INTR_VL_HYS);
pr_info("%s: VALRT_THRESHOLD hysteresis set %d mV (0x%x)\n",
__func__, fuelgauge->info.value_v_alarm_hys, data);
}
static int sm5714_get_bat_id(int bat_id[], int bat_gpio_cnt)
{
int battery_id = 0;
int i = 0;
for (i = (bat_gpio_cnt - 1); i >= 0; i--)
battery_id += bat_id[i] << i;
return battery_id;
}
static void sm5714_reset_bat_id(struct sm5714_fuelgauge_data *fuelgauge)
{
int bat_id[BAT_GPIO_NO] = {0, };
int i = 0;
for (i = 0; i < fuelgauge->pdata->bat_gpio_cnt; i++)
bat_id[i] = gpio_get_value(fuelgauge->pdata->bat_id_gpio[i]);
fuelgauge->battery_data->battery_id =
sm5714_get_bat_id(bat_id, fuelgauge->pdata->bat_gpio_cnt);
}
static void sm5714_fg_bd_log(struct sm5714_fuelgauge_data *fuelgauge)
{
memset(fuelgauge->d_buf, 0x0, sizeof(fuelgauge->d_buf));
snprintf(fuelgauge->d_buf + strlen(fuelgauge->d_buf), sizeof(fuelgauge->d_buf) - strlen(fuelgauge->d_buf),
"%d,%d,%d",
fuelgauge->info.batt_ocv,
fuelgauge->info.batt_soc * 10,
fuelgauge->capacity_max);
}
static int sm5714_fg_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct sm5714_fuelgauge_data *fuelgauge = power_supply_get_drvdata(psy);
enum power_supply_ext_property ext_psp = (enum power_supply_ext_property) psp;
#if defined(CONFIG_NO_BATTERY)
return 0;
#endif
/*
* static int abnormal_current_cnt = 0;
* union power_supply_propval value;
*/
if (atomic_read(&fuelgauge->shutdown_cnt) > 0) {
dev_info(fuelgauge->dev, "%s: fuelgauge already shutdown\n", __func__);
return -EINVAL;
}
switch ((int)psp) {
/* Cell voltage (VCELL, mV) */
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
sm5714_get_vbat(fuelgauge);
val->intval = fuelgauge->info.batt_voltage;
break;
case POWER_SUPPLY_PROP_VOLTAGE_AVG:
val->intval = fuelgauge->info.batt_avgvoltage;
break;
case POWER_SUPPLY_PROP_VOLTAGE_OCV:
val->intval = fuelgauge->info.batt_ocv;
break;
/* Current */
case POWER_SUPPLY_PROP_CURRENT_NOW:
sm5714_get_curr(fuelgauge);
if (val->intval == SEC_BATTERY_CURRENT_UA)
val->intval = fuelgauge->info.batt_current * 1000;
else
val->intval = fuelgauge->info.batt_current;
break;
/* Average Current */
case POWER_SUPPLY_PROP_CURRENT_AVG:
if (val->intval == SEC_BATTERY_CURRENT_UA)
val->intval = fuelgauge->info.batt_avgcurrent * 1000;
else
val->intval = fuelgauge->info.batt_avgcurrent;
break;
/* Full Capacity */
case POWER_SUPPLY_PROP_ENERGY_NOW:
switch (val->intval) {
case SEC_BATTERY_CAPACITY_DESIGNED:
break;
case SEC_BATTERY_CAPACITY_ABSOLUTE:
break;
case SEC_BATTERY_CAPACITY_TEMPERARY:
break;
case SEC_BATTERY_CAPACITY_CURRENT:
break;
case SEC_BATTERY_CAPACITY_AGEDCELL:
break;
case SEC_BATTERY_CAPACITY_CYCLE:
sm5714_get_cycle(fuelgauge);
val->intval = fuelgauge->info.batt_soc_cycle;
break;
case SEC_BATTERY_CAPACITY_FULL:
val->intval = fuelgauge->pdata->capacity_full;
break;
default:
val->intval = -1;
break;
}
break;
/* SOC (%) */
case POWER_SUPPLY_PROP_CAPACITY:
sm5714_update_all_value(fuelgauge);
#if !defined(CONFIG_SEC_FACTORY)
/* for_debug */
sm5714_dump_all(fuelgauge);
#else
sm5714_fuel_gauge_abnormal_reg_check(fuelgauge);
#endif
/* SM5714 F/G unit is 0.1%, raw ==> convert the unit to 0.01% */
if (val->intval == SEC_FUELGAUGE_CAPACITY_TYPE_RAW) {
val->intval = fuelgauge->info.batt_soc * 10;
break;
} else if (val->intval == SEC_FUELGAUGE_CAPACITY_TYPE_DYNAMIC_SCALE) {
val->intval = fuelgauge->raw_capacity;
break;
}
val->intval = fuelgauge->info.batt_soc;
#if defined(CONFIG_UI_SOC_PROLONGING)
if (fuelgauge->pdata->capacity_calculation_type &
(SEC_FUELGAUGE_CAPACITY_TYPE_SCALE | SEC_FUELGAUGE_CAPACITY_TYPE_DYNAMIC_SCALE)) {
sm5714_fg_adjust_capacity_max(fuelgauge, val->intval);
sm5714_fg_get_scaled_capacity(fuelgauge, val);
if (val->intval > 1020) {
pr_info("%s: scaled capacity (%d)\n", __func__, val->intval);
sm5714_fg_calculate_dynamic_scale(fuelgauge, 100, false);
}
}
#else
if (fuelgauge->pdata->capacity_calculation_type &
(SEC_FUELGAUGE_CAPACITY_TYPE_SCALE | SEC_FUELGAUGE_CAPACITY_TYPE_DYNAMIC_SCALE))
sm5714_fg_get_scaled_capacity(fuelgauge, val);
#endif
/* capacity should be between 0% and 100%
* (0.1% degree)
*/
if (val->intval > 1000)
val->intval = 1000;
if (val->intval < 0)
val->intval = 0;
fuelgauge->raw_capacity = val->intval;
/* get only integer part */
val->intval /= 10;
/* SW/HW V Empty setting */
if (fuelgauge->using_hw_vempty) {
if (fuelgauge->info.temperature <= (int)fuelgauge->low_temp_limit) {
if (fuelgauge->raw_capacity <= 50 &&
fuelgauge->vempty_mode != VEMPTY_MODE_HW)
sm5714_fg_set_vempty(fuelgauge, VEMPTY_MODE_HW);
else if (fuelgauge->raw_capacity > 50 &&
fuelgauge->vempty_mode == VEMPTY_MODE_HW) {
sm5714_fg_set_vempty(fuelgauge, VEMPTY_MODE_SW);
}
} else if (fuelgauge->vempty_mode != VEMPTY_MODE_HW) {
sm5714_fg_set_vempty(fuelgauge, VEMPTY_MODE_HW);
}
}
if (!fuelgauge->is_charging &&
fuelgauge->vempty_mode == VEMPTY_MODE_SW_VALERT && !sm5714_get_lpmode()) {
pr_info("%s : SW V EMPTY. Decrease SOC\n", __func__);
if (fuelgauge->capacity_old > 0)
val->intval = fuelgauge->capacity_old - 1;
else
val->intval = 0;
} else if ((fuelgauge->vempty_mode == VEMPTY_MODE_SW_RECOVERY) &&
(val->intval == fuelgauge->capacity_old)) {
fuelgauge->vempty_mode = VEMPTY_MODE_SW;
}
/* check whether doing the wake_unlock */
if ((val->intval > fuelgauge->pdata->fuel_alert_soc) &&
fuelgauge->is_fuel_alerted) {
sm5714_fg_fuelalert_init(fuelgauge,
fuelgauge->pdata->fuel_alert_soc);
}
#if defined(CONFIG_UI_SOC_PROLONGING)
/* Check UI soc reached 100% from 99% , no need to adjust now */
if ((val->intval == 100) && (fuelgauge->capacity_old < 100) &&
(fuelgauge->capacity_max_conv == true))
fuelgauge->capacity_max_conv = false;
#else
/* Check UI soc reached 100% from 99% via forced charge sequence,
* capacity_max needs to be updated again after cable disconnection.
*/
if ((val->intval == 100) && (fuelgauge->capacity_old < 100) &&
(fuelgauge->capacity_max_updated == true))
fuelgauge->capacity_max_updated = false;
#endif
/* (Only for atomic capacity)
* In initial time, capacity_old is 0.
* and in resume from sleep,
* capacity_old is too different from actual soc.
* should update capacity_old
* by val->intval in booting or resume.
*/
if (fuelgauge->initial_update_of_soc) {
fuelgauge->initial_update_of_soc = false;
if (fuelgauge->vempty_mode != VEMPTY_MODE_SW_VALERT) {
/* updated old capacity */
fuelgauge->capacity_old = val->intval;
break;
}
}
if (fuelgauge->sleep_initial_update_of_soc) {
fuelgauge->sleep_initial_update_of_soc = false;
/* updated old capacity in case of resume */
if (fuelgauge->is_charging ||
((!fuelgauge->is_charging) && (fuelgauge->capacity_old >= val->intval))) {
fuelgauge->capacity_old = val->intval;
break;
}
}
if (fuelgauge->pdata->capacity_calculation_type &
(SEC_FUELGAUGE_CAPACITY_TYPE_ATOMIC |
SEC_FUELGAUGE_CAPACITY_TYPE_SKIP_ABNORMAL)){
sm5714_fg_get_atomic_capacity(fuelgauge, val);
}
break;
/* Battery Temperature */
case POWER_SUPPLY_PROP_TEMP:
/* Target Temperature */
case POWER_SUPPLY_PROP_TEMP_AMBIENT:
sm5714_get_temperature(fuelgauge);
val->intval = fuelgauge->info.temp_fg;
break;
#if defined(CONFIG_EN_OOPS)
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
return -ENODATA;
#endif
case POWER_SUPPLY_PROP_ENERGY_FULL:
val->intval = sm5714_get_asoc(fuelgauge);
break;
case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
val->intval = fuelgauge->capacity_max;
break;
case POWER_SUPPLY_PROP_CHARGE_COUNTER:
val->intval =
fuelgauge->battery_data->Capacity * fuelgauge->raw_capacity;
pr_info("%s: charge_counter = %d\n", __func__, val->intval);
break;
case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
return -ENODATA;
case POWER_SUPPLY_EXT_PROP_MIN ... POWER_SUPPLY_EXT_PROP_MAX:
switch (ext_psp) {
case POWER_SUPPLY_EXT_PROP_JIG_GPIO:
if (fuelgauge->pdata->jig_gpio)
val->intval = gpio_get_value(fuelgauge->pdata->jig_gpio);
else
val->intval = -1;
pr_info("%s: jig gpio = %d\n", __func__, val->intval);
break;
case POWER_SUPPLY_EXT_PROP_MONITOR_WORK:
break;
case POWER_SUPPLY_EXT_PROP_BATTERY_ID:
if (!val->intval) {
if (fuelgauge->pdata->bat_gpio_cnt > 0)
sm5714_reset_bat_id(fuelgauge);
val->intval = fuelgauge->battery_data->battery_id;
pr_info("%s: bat_id_gpio = %d\n", __func__, val->intval);
}
break;
case POWER_SUPPLY_EXT_PROP_BATT_DUMP:
sm5714_fg_bd_log(fuelgauge);
val->strval = fuelgauge->d_buf;
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
return 0;
}
#if defined(CONFIG_UPDATE_BATTERY_DATA)
static int sm5714_fuelgauge_parse_dt(struct sm5714_fuelgauge_data *fuelgauge);
#endif
static int sm5714_fg_set_property(struct power_supply *psy,
enum power_supply_property psp,
const union power_supply_propval *val)
{
struct sm5714_fuelgauge_data *fuelgauge = power_supply_get_drvdata(psy);
enum power_supply_ext_property ext_psp = (enum power_supply_ext_property) psp;
/*u8 data[2] = {0, 0}; */
if (atomic_read(&fuelgauge->shutdown_cnt) > 0) {
dev_info(fuelgauge->dev, "%s: fuelgauge already shutdown\n", __func__);
return -EINVAL;
}
switch ((int)psp) {
case POWER_SUPPLY_PROP_STATUS:
if (val->intval == POWER_SUPPLY_STATUS_FULL) {
pr_info("%s: POWER_SUPPLY_PROP_CHARGE_FULL : q_max_now = 0x%x\n",
__func__, fuelgauge->info.q_max_now);
if (fuelgauge->info.q_max_now !=
fuelgauge->info.q_max_table[get_v_max_index_by_cycle(fuelgauge)]) {
if (!sm5714_fg_reset(fuelgauge, false))
return -EINVAL;
}
}
break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
if (fuelgauge->pdata->capacity_calculation_type &
SEC_FUELGAUGE_CAPACITY_TYPE_DYNAMIC_SCALE)
#if defined(CONFIG_UI_SOC_PROLONGING)
sm5714_fg_calculate_dynamic_scale(fuelgauge, val->intval, true);
#else
sm5714_fg_calculate_dynamic_scale(fuelgauge, val->intval);
#endif
break;
#if defined(CONFIG_EN_OOPS)
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
sm5714_set_full_value(fuelgauge, val->intval);
break;
#endif
case POWER_SUPPLY_PROP_ONLINE:
fuelgauge->cable_type = val->intval;
if (is_nocharge_type(fuelgauge->cable_type)) {
fuelgauge->ta_exist = false;
fuelgauge->is_charging = false;
} else {
fuelgauge->ta_exist = true;
fuelgauge->is_charging = true;
/* enable alert */
if (fuelgauge->vempty_mode >= VEMPTY_MODE_SW_VALERT) {
sm5714_fg_set_vempty(fuelgauge, VEMPTY_MODE_HW);
fuelgauge->initial_update_of_soc = true;
sm5714_fg_fuelalert_init(fuelgauge,
fuelgauge->pdata->fuel_alert_soc);
}
}
break;
/* Battery Temperature */
case POWER_SUPPLY_PROP_CAPACITY:
if (val->intval == SEC_FUELGAUGE_CAPACITY_TYPE_RESET) {
fuelgauge->initial_update_of_soc = true;
if (!sm5714_fg_reset(fuelgauge, true))
return -EINVAL;
}
break;
case POWER_SUPPLY_PROP_TEMP:
fuelgauge->info.temperature = val->intval;
if (val->intval < 0)
pr_info("%s: set the low temp reset! temp : %d\n",
__func__, val->intval);
break;
case POWER_SUPPLY_PROP_TEMP_AMBIENT:
break;
case POWER_SUPPLY_PROP_HEALTH:
fuelgauge->info.flag_charge_health =
(val->intval == POWER_SUPPLY_HEALTH_GOOD) ? 1 : 0;
pr_info("%s: charge health from charger = 0x%x\n", __func__, val->intval);
break;
case POWER_SUPPLY_PROP_ENERGY_NOW:
sm5714_fg_reset_capacity_by_jig_connection(fuelgauge);
break;
case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN:
pr_info("%s: capacity_max changed, %d -> %d\n",
__func__, fuelgauge->capacity_max, val->intval);
fuelgauge->capacity_max =
sm5714_fg_check_capacity_max(
val->intval,
fuelgauge->pdata->capacity_max,
fuelgauge->pdata->capacity_max_margin);
fuelgauge->initial_update_of_soc = true;
#if defined(CONFIG_UI_SOC_PROLONGING)
fuelgauge->g_capacity_max = 990;
fuelgauge->capacity_max_conv = true;
#endif
break;
case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
pr_info("%s: full condition soc changed, %d -> %d\n",
__func__, fuelgauge->chg_full_soc, val->intval);
fuelgauge->chg_full_soc = val->intval;
break;
#if defined(CONFIG_UPDATE_BATTERY_DATA)
case POWER_SUPPLY_PROP_POWER_DESIGN:
sm5714_fuelgauge_parse_dt(fuelgauge);
break;
#endif
case POWER_SUPPLY_EXT_PROP_MIN ... POWER_SUPPLY_EXT_PROP_MAX:
switch (ext_psp) {
case POWER_SUPPLY_EXT_PROP_FGSRC_SWITCHING:
sm5714_fg_set_jig_mode_real_vbat(fuelgauge, val->intval);
break;
case POWER_SUPPLY_EXT_PROP_FUELGAUGE_FACTORY:
if (val->intval) {
pr_info("%s: bypass mode is enabled\n", __func__);
sm5714_fg_reset_capacity_by_jig_connection(fuelgauge);
}
break;
case POWER_SUPPLY_EXT_PROP_CHARGING_ENABLED:
break;
default:
return -EINVAL;
}
break;
default:
return -EINVAL;
}
return 0;
}
static void sm5714_fg_isr_work(struct work_struct *work)
{
struct sm5714_fuelgauge_data *fuelgauge =
container_of(work, struct sm5714_fuelgauge_data, isr_work.work);
/* process for fuel gauge chip */
sm5714_fg_fuelalert_process(fuelgauge);
__pm_relax(fuelgauge->fuel_alert_ws);
}
static irqreturn_t sm5714_fg_irq_thread(int irq, void *irq_data)
{
struct sm5714_fuelgauge_data *fuelgauge = irq_data;
pr_info("%s\n", __func__);
if (fuelgauge->is_fuel_alerted)
return IRQ_HANDLED;
__pm_stay_awake(fuelgauge->fuel_alert_ws);
fuelgauge->is_fuel_alerted = true;
schedule_delayed_work(&fuelgauge->isr_work, 0);
return IRQ_HANDLED;
}
static int sm5714_fuelgauge_debugfs_show(struct seq_file *s, void *data)
{
struct sm5714_fuelgauge_data *fuelgauge = s->private;
int i;
u8 reg;
u8 reg_data;
seq_puts(s, "SM5714 FUELGAUGE IC :\n");
seq_puts(s, "===================\n");
for (i = 0; i < 16; i++) {
if (i == 12)
continue;
for (reg = 0; reg < 0x10; reg++) {
reg_data = sm5714_read_word(fuelgauge->i2c, reg + i * 0x10);
seq_printf(s, "0x%02x:\t0x%04x\n", reg + i * 0x10, reg_data);
}
if (i == 4)
i = 10;
}
seq_puts(s, "\n");
return 0;
}
static int sm5714_fuelgauge_debugfs_open(struct inode *inode, struct file *file)
{
return single_open(file, sm5714_fuelgauge_debugfs_show, inode->i_private);
}
static const struct file_operations sm5714_fuelgauge_debugfs_fops = {
.open = sm5714_fuelgauge_debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#define FREE_IRQ(_irq, _dev_id, _name) \
do { \
if (_irq) { \
free_irq(_irq, _dev_id); \
pr_info("%s: IRQ(%d):%s free done\n", \
__func__, _irq, _name); \
} \
} while (0)
static void sm5714_fuelgauge_free_irqs(struct sm5714_fuelgauge_data *fuelgauge)
{
if (fuelgauge->fg_irq) {
pr_info("%s: start\n", __func__);
/* free fuelgauge IRQ */
FREE_IRQ(fuelgauge->fg_irq, fuelgauge, "fuelgauge-irq");
pr_info("%s: end\n", __func__);
}
}
#ifdef CONFIG_OF
#define PROPERTY_NAME_SIZE 128
#define PINFO(format, args...) \
pr_info("%s() line-%d: " format, __func__, __LINE__, ## args)
static void temp_parse_dt(struct sm5714_fuelgauge_platform_data *pdata)
{
struct device_node *np = of_find_node_by_name(NULL, "battery");
int ret = 0, len = 0;
unsigned int i = 0;
bool age_data_by_common_offset = of_property_read_bool(np, "battery,age_data_by_common_offset");
pr_info("%s: age_data_by_common_offset is %s", __func__, (age_data_by_common_offset ? "true" : "false"));
if (age_data_by_common_offset) {
char *age_data_soc_str = "battery,age_data_full_condition_soc";
len = of_property_count_u32_elems(np, age_data_soc_str);
if (len > 0) {
pdata->num_age_step = len;
pdata->age_data_soc = kcalloc(pdata->num_age_step, sizeof(u32), GFP_KERNEL);
ret = of_property_read_u32_array(np, age_data_soc_str, pdata->age_data_soc, len);
} else {
pr_info("%s : Error in Calculating %s Size - %d\n", __func__, age_data_soc_str, len);
}
} else {
sec_age_data_t *age_data_temp;
len = of_property_count_u32_elems(np, "battery,age_data");
if (len > 0) {
pdata->num_age_step = (sizeof(u32) * len) / sizeof(sec_age_data_t);
age_data_temp = kzalloc((sizeof(u32) * len), GFP_KERNEL);
pdata->age_data_soc = kcalloc(pdata->num_age_step, sizeof(u32), GFP_KERNEL);
ret = of_property_read_u32_array(np, "battery,age_data", (u32 *)age_data_temp, len);
if (!ret) {
for (i = 0; i < pdata->num_age_step; ++i)
pdata->age_data_soc[i] = age_data_temp[i].full_condition_soc;
}
kfree(age_data_temp);
}
}
if (ret) {
pr_err("%s failed to read battery->pdata->age_data: %d\n", __func__, ret);
kfree(pdata->age_data_soc);
pdata->age_data_soc = NULL;
pdata->num_age_step = 0;
} else {
pr_err("%s num_age_step : %d\n", __func__, pdata->num_age_step);
for (i = 0; i < pdata->num_age_step; ++i)
pr_err("%s [%d/%d] soc:%d", __func__, i, pdata->num_age_step-1, pdata->age_data_soc[i]);
}
}
static int sm5714_fuelgauge_parse_dt(struct sm5714_fuelgauge_data *fuelgauge)
{
struct sm5714_fuelgauge_platform_data *pdata = fuelgauge->pdata;
char prop_name[PROPERTY_NAME_SIZE];
int battery_id = -1;
int table[24];
int v_max_table[5];
int q_max_table[5];
int rs_value[7];
int battery_type[3];
int v_alarm[2];
int set_temp_poff[4];
int i_cal[8];
int v_cal[7];
int aux_ctrl[2];
int ret;
int i, j;
int bat_id[BAT_GPIO_NO] = {0, };
struct device_node *np = of_find_node_by_name(NULL, "sm5714-fuelgauge");
/* reset, irq gpio info */
if (np == NULL) {
pr_err("%s np NULL\n", __func__);
} else {
ret = of_property_read_u32(np, "fuelgauge,capacity_max",
&fuelgauge->pdata->capacity_max);
if (ret < 0)
pr_err("%s error reading capacity_max %d\n", __func__, ret);
ret = of_property_read_u32(np, "fuelgauge,capacity_max_margin",
&fuelgauge->pdata->capacity_max_margin);
if (ret < 0) {
pr_err("%s error reading capacity_max_margin %d\n", __func__, ret);
fuelgauge->pdata->capacity_max_margin = 300;
}
ret = of_property_read_u32(np, "fuelgauge,capacity",
&fuelgauge->pdata->capacity_full);
if (ret < 0)
pr_err("%s error reading capacity %d\n", __func__, ret);
ret = of_property_read_u32(np, "fuelgauge,capacity_min",
&fuelgauge->pdata->capacity_min);
if (ret < 0)
pr_err("%s error reading capacity_min %d\n", __func__, ret);
pr_info("%s: capacity_max: %d, capacity_min: %d, capacity_max_margin: %d\n",
__func__, fuelgauge->pdata->capacity_max, fuelgauge->pdata->capacity_min,
fuelgauge->pdata->capacity_max_margin);
ret = of_property_read_u32(np, "fuelgauge,capacity_calculation_type",
&fuelgauge->pdata->capacity_calculation_type);
if (ret < 0)
pr_err("%s error reading capacity_calculation_type %d\n",
__func__, ret);
ret = of_property_read_u32(np, "fuelgauge,fuel_alert_soc",
&fuelgauge->pdata->fuel_alert_soc);
if (ret < 0)
pr_err("%s error reading pdata->fuel_alert_soc %d\n",
__func__, ret);
fuelgauge->pdata->repeated_fuelalert = of_property_read_bool(np,
"fuelgaguge,repeated_fuelalert");
pr_info("%s: calculation_type: 0x%x, fuel_alert_soc: %d,\n"
"repeated_fuelalert: %d\n", __func__,
fuelgauge->pdata->capacity_calculation_type,
fuelgauge->pdata->fuel_alert_soc, fuelgauge->pdata->repeated_fuelalert);
fuelgauge->using_temp_compensation = of_property_read_bool(np,
"fuelgauge,using_temp_compensation");
if (fuelgauge->using_temp_compensation) {
ret = of_property_read_u32(np, "fuelgauge,low_temp_limit",
&fuelgauge->low_temp_limit);
if (ret < 0)
pr_err("%s error reading low temp limit %d\n", __func__, ret);
pr_info("%s : LOW TEMP LIMIT(%d)\n",
__func__, fuelgauge->low_temp_limit);
}
fuelgauge->using_hw_vempty = of_property_read_bool(np,
"fuelgauge,using_hw_vempty");
if (fuelgauge->using_hw_vempty) {
ret = of_property_read_u32(np, "fuelgauge,v_empty",
&fuelgauge->battery_data->V_empty);
if (ret < 0)
pr_err("%s error reading v_empty %d\n",
__func__, ret);
ret = of_property_read_u32(np, "fuelgauge,v_empty_origin",
&fuelgauge->battery_data->V_empty_origin);
if (ret < 0)
pr_err("%s error reading v_empty_origin %d\n",
__func__, ret);
ret = of_property_read_u32(np, "fuelgauge,sw_v_empty_voltage_cisd",
&fuelgauge->battery_data->sw_v_empty_vol_cisd);
if (ret < 0) {
pr_err("%s error reading sw_v_empty_default_vol_cise %d\n",
__func__, ret);
fuelgauge->battery_data->sw_v_empty_vol_cisd = 3100;
}
ret = of_property_read_u32(np, "fuelgauge,sw_v_empty_voltage",
&fuelgauge->battery_data->sw_v_empty_vol);
if (ret < 0) {
pr_err("%s error reading sw_v_empty_default_vol %d\n",
__func__, ret);
fuelgauge->battery_data->sw_v_empty_vol = 3200;
}
ret = of_property_read_u32(np, "fuelgauge,sw_v_empty_recover_voltage",
&fuelgauge->battery_data->sw_v_empty_recover_vol);
if (ret < 0) {
pr_err("%s error reading sw_v_empty_recover_vol %d\n",
__func__, ret);
fuelgauge->battery_data->sw_v_empty_recover_vol = 3480;
}
ret = of_property_read_u32(np, "fuelgauge,vbat_ovp",
&fuelgauge->battery_data->vbat_ovp);
if (ret < 0) {
pr_err("%s error reading vbat_ovp %d\n",
__func__, ret);
fuelgauge->battery_data->vbat_ovp = 4400;
}
pr_info("%s : SW V Empty (%d)mV, SW V Empty recover (%d)mV, CISD V_Alarm (%d)mV, Vbat OVP (%d)mV\n",
__func__,
fuelgauge->battery_data->sw_v_empty_vol,
fuelgauge->battery_data->sw_v_empty_recover_vol,
fuelgauge->battery_data->sw_v_empty_vol_cisd,
fuelgauge->battery_data->vbat_ovp);
}
fuelgauge->pdata->jig_gpio = of_get_named_gpio(np, "fuelgauge,jig_gpio", 0);
if (fuelgauge->pdata->jig_gpio < 0) {
pr_err("%s error reading jig_gpio = %d\n",
__func__, fuelgauge->pdata->jig_gpio);
fuelgauge->pdata->jig_gpio = 0;
} else {
fuelgauge->pdata->jig_irq = gpio_to_irq(fuelgauge->pdata->jig_gpio);
}
/*
* if (fuelgauge->pdata->jig_gpio) {
* ret = of_property_read_u32(np, "fuelgauge,jig_low_active",
* &fuelgauge->pdata->jig_low_active);
* if (ret < 0) {
* pr_err("%s error reading jig_low_active %d\n", __func__, ret);
* fuelgauge->pdata->jig_low_active = 0;
* }
* }
*/
ret = of_property_read_u32(np, "fuelgauge,fg_resistor",
&fuelgauge->fg_resistor);
if (ret < 0) {
pr_err("%s error reading fg_resistor %d\n",
__func__, ret);
fuelgauge->fg_resistor = 1;
}
#if defined(CONFIG_EN_OOPS)
/* todo cap redesign */
#endif
ret = of_property_read_u32(np, "fuelgauge,capacity",
&fuelgauge->battery_data->Capacity);
if (ret < 0)
pr_err("%s error reading Capacity %d\n",
__func__, ret);
ret = of_property_read_u32(np, "battery,full_condition_soc",
&fuelgauge->pdata->full_condition_soc);
if (ret) {
fuelgauge->pdata->full_condition_soc = 93;
pr_info("%s : Full condition soc is Empty\n", __func__);
}
}
pdata->bat_gpio_cnt = of_gpio_named_count(np, "fuelgauge,bat_id_gpio");
/* not run if gpio gpio cnt is less than 1 */
if (pdata->bat_gpio_cnt > 0) {
pr_info("%s: Has %d bat_id_gpios\n", __func__, pdata->bat_gpio_cnt);
if (pdata->bat_gpio_cnt > BAT_GPIO_NO) {
pr_err("%s: bat_id_gpio, catch out-of bounds array read\n",
__func__);
pdata->bat_gpio_cnt = BAT_GPIO_NO;
}
for (i = 0; i < pdata->bat_gpio_cnt; i++) {
pdata->bat_id_gpio[i] = of_get_named_gpio(np, "fuelgauge,bat_id_gpio", i);
if (pdata->bat_id_gpio[i] >= 0) {
bat_id[i] = gpio_get_value(pdata->bat_id_gpio[i]);
} else {
pr_err("%s: error reading bat_id_gpio = %d\n",
__func__, pdata->bat_id_gpio[i]);
bat_id[i] = 0;
}
}
fuelgauge->battery_data->battery_id =
sm5714_get_bat_id(bat_id, pdata->bat_gpio_cnt);
pr_info("%s: battery_id (gpio) = %d\n", __func__, fuelgauge->battery_data->battery_id);
} else {
fuelgauge->battery_data->battery_id = 0;
}
/* get battery_params node for reg init */
np = of_find_node_by_name(of_node_get(np), "battery_params");
if (np == NULL) {
PINFO("Cannot find child node \"battery_params\"\n");
return -EINVAL;
}
if (fuelgauge->battery_data->battery_id >= 0) {
battery_id = fuelgauge->battery_data->battery_id;
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "battery_type");
ret = of_property_read_u32_array(np, prop_name, battery_type, 2);
if (ret < 0) {
PINFO("no battery_id(%d) data\n", battery_id);
/* get battery_id */
battery_id = 0;
if (of_property_read_u32(np, "battery,id", &battery_id) < 0)
PINFO("not battery,id property\n");
PINFO("use battery default id = %d\n", battery_id);
}
} else {
if (of_property_read_u32(np, "battery,id", &battery_id) < 0)
PINFO("not battery,id property\n");
}
PINFO("battery id = %d\n", battery_id);
/* get battery_table */
for (i = DISCHARGE_TABLE; i < TABLE_MAX; i++) {
snprintf(prop_name, PROPERTY_NAME_SIZE,
"battery%d,%s%d", battery_id, "battery_table", i);
ret = of_property_read_u32_array(np, prop_name, table, 24);
if (ret < 0)
PINFO("Can get prop %s (%d)\n", prop_name, ret);
for (j = 0; j <= FG_TABLE_LEN; j++) {
fuelgauge->info.battery_table[i][j] = table[j];
PINFO("%s = <table[%d][%d] 0x%x>\n", prop_name, i, j, table[j]);
}
}
snprintf(prop_name, PROPERTY_NAME_SIZE,
"battery%d,%s%d", battery_id, "battery_table", i);
ret = of_property_read_u32_array(np, prop_name, table, 16);
if (ret < 0)
PINFO("Can get prop %s (%d)\n", prop_name, ret);
for (j = 0; j <= FG_ADD_TABLE_LEN; j++) {
fuelgauge->info.battery_table[i][j] = table[j];
PINFO("%s = <table[%d][%d] 0x%x>\n", prop_name, i, j, table[j]);
}
/* get rs_value */
for (i = 0; i < 7; i++) {
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "rs_value");
ret = of_property_read_u32_array(np, prop_name, rs_value, 7);
if (ret < 0)
PINFO("Can get prop %s (%d)\n", prop_name, ret);
fuelgauge->info.rs_value[i] = rs_value[i];
}
/*spare min max factor chg_factor dischg_factor manvalue*/
PINFO("%s = <0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x>\n", prop_name,
rs_value[0], rs_value[1], rs_value[2], rs_value[3], rs_value[4], rs_value[5], rs_value[6]);
/* battery_type */
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "battery_type");
ret = of_property_read_u32_array(np, prop_name, battery_type, 2);
if (ret < 0)
PINFO("Can get prop %s (%d)\n", prop_name, ret);
fuelgauge->info.batt_v_max = battery_type[0];
fuelgauge->info.cap = battery_type[1];
fuelgauge->info.maxcap = battery_type[1];
PINFO("%s = <%d 0x%x>\n", prop_name,
fuelgauge->info.batt_v_max, fuelgauge->info.cap);
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "v_max_table");
ret = of_property_read_u32_array(np, prop_name, v_max_table, fuelgauge->pdata->num_age_step);
if (ret < 0) {
PINFO("Can get prop %s (%d)\n", prop_name, ret);
for (i = 0; i < fuelgauge->pdata->num_age_step; i++) {
fuelgauge->info.v_max_table[i] = fuelgauge->info.battery_table[DISCHARGE_TABLE][FG_TABLE_LEN-1];
PINFO("%s = <v_max_table[%d] 0x%x>\n", prop_name, i, fuelgauge->info.v_max_table[i]);
}
} else {
for (i = 0; i < fuelgauge->pdata->num_age_step; i++) {
fuelgauge->info.v_max_table[i] = v_max_table[i];
PINFO("%s = <v_max_table[%d] 0x%x>\n", prop_name, i, fuelgauge->info.v_max_table[i]);
}
}
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "q_max_table");
ret = of_property_read_u32_array(np, prop_name, q_max_table, fuelgauge->pdata->num_age_step);
if (ret < 0) {
PINFO("Can get prop %s (%d)\n", prop_name, ret);
for (i = 0; i < fuelgauge->pdata->num_age_step; i++) {
fuelgauge->info.q_max_table[i] = fuelgauge->info.cap;
PINFO("%s = <q_max_table[%d] 0x%x>\n", prop_name, i, fuelgauge->info.q_max_table[i]);
}
} else {
for (i = 0; i < fuelgauge->pdata->num_age_step; i++) {
fuelgauge->info.q_max_table[i] = q_max_table[i];
PINFO("%s = <q_max_table[%d] 0x%x>\n", prop_name, i, fuelgauge->info.q_max_table[i]);
}
}
fuelgauge->chg_full_soc = fuelgauge->pdata->age_data_soc ?
fuelgauge->pdata->age_data_soc[0] : fuelgauge->pdata->full_condition_soc;
fuelgauge->info.v_max_now = fuelgauge->info.v_max_table[0];
fuelgauge->info.q_max_now = fuelgauge->info.q_max_table[0];
PINFO("%s = <v_max_now = 0x%x>, <q_max_now = 0x%x>, <chg_full_soc = %d>\n", prop_name,
fuelgauge->info.v_max_now, fuelgauge->info.q_max_now, fuelgauge->chg_full_soc);
/* V_ALARM */
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "v_alarm");
ret = of_property_read_u32_array(np, prop_name, v_alarm, 2);
if (ret < 0)
PINFO("Can get prop %s (%d)\n", prop_name, ret);
fuelgauge->info.value_v_alarm = v_alarm[0];
fuelgauge->info.value_v_alarm_hys = v_alarm[1];
PINFO("%s = <%d %d>\n", prop_name, fuelgauge->info.value_v_alarm, fuelgauge->info.value_v_alarm_hys);
/* TOP OFF */
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "topoff");
ret = of_property_read_u32_array(np, prop_name, &fuelgauge->info.top_off, 1);
if (ret < 0)
PINFO("Can get prop %s (%d)\n", prop_name, ret);
PINFO("%s = <%d>\n", prop_name, fuelgauge->info.top_off);
/* i CAL */
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "i_cal");
ret = of_property_read_u32_array(np, prop_name, i_cal, 8);
if (ret < 0) {
PINFO("Can get prop %s (%d)\n", prop_name, ret);
} else {
fuelgauge->info.i_dp_default = i_cal[0];
fuelgauge->info.dp_i_off = i_cal[1];
fuelgauge->info.dp_i_pslo = i_cal[2];
fuelgauge->info.dp_i_nslo = i_cal[3];
fuelgauge->info.i_alg_default = i_cal[4];
fuelgauge->info.alg_i_off = i_cal[5];
fuelgauge->info.alg_i_pslo = i_cal[6];
fuelgauge->info.alg_i_nslo = i_cal[7];
}
PINFO("%s = dp : [%d]<0x%x 0x%x 0x%x> alg : [%d]<0x%x 0x%x 0x%x>\n", prop_name,
fuelgauge->info.i_dp_default, fuelgauge->info.dp_i_off,
fuelgauge->info.dp_i_pslo, fuelgauge->info.dp_i_nslo,
fuelgauge->info.i_alg_default, fuelgauge->info.alg_i_off,
fuelgauge->info.alg_i_pslo, fuelgauge->info.alg_i_nslo);
/* v CAL */
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "v_cal");
ret = of_property_read_u32_array(np, prop_name, v_cal, 7);
if (ret < 0) {
PINFO("Can get prop %s (%d)\n", prop_name, ret);
} else {
fuelgauge->info.v_default = v_cal[0];
fuelgauge->info.v_off = v_cal[1];
fuelgauge->info.v_slo = v_cal[2];
fuelgauge->info.vt_default = v_cal[3];
fuelgauge->info.vtt = v_cal[4];
fuelgauge->info.ivt = v_cal[5];
fuelgauge->info.ivv = v_cal[6];
}
PINFO("%s = v : [%d]<0x%x 0x%x> vt : [%d]<0x%x 0x%x 0x%x>\n", prop_name,
fuelgauge->info.v_default, fuelgauge->info.v_off, fuelgauge->info.v_slo
, fuelgauge->info.vt_default, fuelgauge->info.vtt, fuelgauge->info.ivt, fuelgauge->info.ivv);
/* temp_std */
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "temp_std");
ret = of_property_read_u32_array(np, prop_name, &fuelgauge->info.temp_std, 1);
if (ret < 0)
PINFO("Can get prop %s (%d)\n", prop_name, ret);
PINFO("%s = <%d>\n", prop_name, fuelgauge->info.temp_std);
/* tem poff level */
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "tem_poff");
ret = of_property_read_u32_array(np, prop_name, set_temp_poff, 4);
if (ret < 0)
PINFO("Can get prop %s (%d)\n", prop_name, ret);
fuelgauge->info.n_tem_poff = set_temp_poff[0];
fuelgauge->info.n_tem_poff_offset = set_temp_poff[1];
fuelgauge->info.l_tem_poff = set_temp_poff[2];
fuelgauge->info.l_tem_poff_offset = set_temp_poff[3];
PINFO("%s = <%d, %d, %d, %d>\n",
prop_name,
fuelgauge->info.n_tem_poff, fuelgauge->info.n_tem_poff_offset,
fuelgauge->info.l_tem_poff, fuelgauge->info.l_tem_poff_offset);
/* aux_ctrl setting */
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "aux_ctrl");
ret = of_property_read_u32_array(np, prop_name, aux_ctrl, 2);
if (ret < 0)
PINFO("Can get prop %s (%d)\n", prop_name, ret);
fuelgauge->info.aux_ctrl[0] = aux_ctrl[0];
fuelgauge->info.aux_ctrl[1] = aux_ctrl[1];
/* batt data version */
snprintf(prop_name, PROPERTY_NAME_SIZE, "battery%d,%s", battery_id, "data_ver");
ret = of_property_read_u32_array(np, prop_name, &fuelgauge->info.data_ver, 1);
if (ret < 0)
PINFO("Can get prop %s (%d)\n", prop_name, ret);
PINFO("%s = <%d>\n", prop_name, fuelgauge->info.data_ver);
return 0;
}
#endif
static struct device_attribute sm5714_attrs[] = {
sm5714_FG_ATTR(chip_id),
sm5714_FG_ATTR(data),
sm5714_FG_ATTR(data_1),
sm5714_FG_ATTR(data_sram),
sm5714_FG_ATTR(data_sram_1),
};
static int sm5714_fg_create_attrs(struct device *dev)
{
int i, rc;
for (i = 0; i < (int)ARRAY_SIZE(sm5714_attrs); i++) {
rc = device_create_file(dev, &sm5714_attrs[i]);
if (rc)
goto create_attrs_failed;
}
return rc;
create_attrs_failed:
dev_err(dev, "%s: failed (%d)\n", __func__, rc);
while (i--)
device_remove_file(dev, &sm5714_attrs[i]);
return rc;
}
ssize_t sm5714_fg_show_attrs(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct power_supply *psy = dev_get_drvdata(dev);
struct sm5714_fuelgauge_data *fuelgauge = power_supply_get_drvdata(psy);
const ptrdiff_t offset = attr - sm5714_attrs;
int i = 0;
u16 data;
u8 addr;
switch (offset) {
case CHIP_ID:
case DATA:
for (addr = 0; addr < (int)ARRAY_SIZE(sm5714_regs); addr++) {
data = -1;
data = sm5714_read_word(fuelgauge->i2c, sm5714_regs[addr]);
i += scnprintf(buf + i, PAGE_SIZE - i,
"0x%02X[0x%04X],", sm5714_regs[addr], data);
}
i += scnprintf(buf + i, PAGE_SIZE - i, "\n");
break;
case DATA_1:
data = sm5714_read_word(fuelgauge->i2c, fuelgauge->read_reg);
i += scnprintf(buf + i, PAGE_SIZE - i,
"0x%02X : 0x%04X\n", fuelgauge->read_reg, data);
break;
case DATA_SRAM:
for (addr = 0; addr < (int)ARRAY_SIZE(sm5714_srams); addr++) {
data = -1;
data = sm5714_fg_read_sram(fuelgauge, sm5714_srams[addr]);
i += scnprintf(buf + i, PAGE_SIZE - i,
"0x%02X[0x%04X],", sm5714_srams[addr], data);
}
i += scnprintf(buf + i, PAGE_SIZE - i, "\n");
break;
case DATA_SRAM_1:
data = sm5714_fg_read_sram(fuelgauge, fuelgauge->read_sram_reg);
i += scnprintf(buf + i, PAGE_SIZE - i,
"0x%02X : 0x%04X\n", fuelgauge->read_sram_reg, data);
break;
default:
return -EINVAL;
}
return i;
}
ssize_t sm5714_fg_store_attrs(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct power_supply *psy = dev_get_drvdata(dev);
struct sm5714_fuelgauge_data *fuelgauge = power_supply_get_drvdata(psy);
const ptrdiff_t offset = attr - sm5714_attrs;
int ret = 0;
int addr, data;
switch (offset) {
case CHIP_ID:
ret = count;
break;
case DATA:
if (sscanf(buf, "0x%8x 0x%8x", &addr, &data) == 2) {
dev_info(fuelgauge->dev,
"%s: addr: 0x%x, data: 0x%x\n", __func__, addr, data);
if (sm5714_fg_find_addr(addr)) {
if (sm5714_write_word(fuelgauge->i2c, addr, data) < 0) {
dev_info(fuelgauge->dev,
"%s: addr: 0x%x write fail\n", __func__, addr);
ret = -EINVAL;
}
} else {
dev_info(fuelgauge->dev,
"%s: addr: 0x%x is wrong\n", __func__, addr);
ret = -EINVAL;
}
}
ret = count;
break;
case DATA_1:
if (sscanf(buf, "0x%8x", &addr) == 1)
fuelgauge->read_reg = addr;
ret = count;
break;
case DATA_SRAM:
if (sscanf(buf, "0x%8x 0x%8x", &addr, &data) == 2) {
dev_info(fuelgauge->dev,
"%s: addr: 0x%x, data: 0x%x\n", __func__, addr, data);
if (sm5714_fg_find_sram_addr(addr)) {
if (sm5714_fg_write_sram(fuelgauge, addr, data) < 0) {
dev_info(fuelgauge->dev,
"%s: addr: 0x%x write fail\n", __func__, addr);
ret = -EINVAL;
}
} else {
dev_info(fuelgauge->dev,
"%s: addr: 0x%x is wrong\n", __func__, addr);
ret = -EINVAL;
}
}
ret = count;
break;
case DATA_SRAM_1:
if (sscanf(buf, "0x%8x", &addr) == 1)
fuelgauge->read_sram_reg = addr;
ret = count;
break;
default:
ret = -EINVAL;
}
return ret;
}
static const struct power_supply_desc sm5714_fuelgauge_power_supply_desc = {
.name = "sm5714-fuelgauge",
.type = POWER_SUPPLY_TYPE_UNKNOWN,
.properties = sm5714_fuelgauge_props,
.num_properties = ARRAY_SIZE(sm5714_fuelgauge_props),
.get_property = sm5714_fg_get_property,
.set_property = sm5714_fg_set_property,
};
static int sm5714_fuelgauge_probe(struct platform_device *pdev)
{
struct sm5714_dev *sm5714 = dev_get_drvdata(pdev->dev.parent);
struct sm5714_platform_data *pdata = dev_get_platdata(sm5714->dev);
struct sm5714_fuelgauge_data *fuelgauge;
struct sm5714_fuelgauge_platform_data *fuelgauge_data;
/* struct power_supply_config fuelgauge_cfg = {}; */
struct power_supply_config psy_fg = {};
int ret = 0;
union power_supply_propval raw_soc_val;
#if defined(CONFIG_DISABLE_SAVE_CAPACITY_MAX)
u16 reg_data;
#endif
pr_info("%s: SM5714 Fuelgauge Driver Loading probe start\n", __func__);
fuelgauge = kzalloc(sizeof(*fuelgauge), GFP_KERNEL);
if (!fuelgauge)
return -ENOMEM;
fuelgauge_data = kzalloc(sizeof(struct sm5714_fuelgauge_platform_data), GFP_KERNEL);
if (!fuelgauge_data) {
ret = -ENOMEM;
goto err_free;
}
mutex_init(&fuelgauge->fg_lock);
fuelgauge->dev = &pdev->dev;
fuelgauge->pdata = fuelgauge_data;
fuelgauge->i2c = sm5714->fuelgauge;
/* fuelgauge->pmic = sm5714->i2c; */
fuelgauge->sm5714_pdata = pdata;
fuelgauge->pmic_rev = sm5714->pmic_rev;
fuelgauge->vender_id = sm5714->vender_id;
atomic_set(&fuelgauge->shutdown_cnt, 0);
temp_parse_dt(fuelgauge->pdata);
#if defined(CONFIG_OF)
fuelgauge->battery_data = kzalloc(sizeof(struct battery_data_t),
GFP_KERNEL);
if (!fuelgauge->battery_data) {
ret = -ENOMEM;
goto err_pdata_free;
}
ret = sm5714_fuelgauge_parse_dt(fuelgauge);
if (ret < 0) {
pr_err("%s not found fuelgauge dt! ret[%d]\n",
__func__, ret);
goto err_data_free;
}
#endif
/* initialize value */
fuelgauge->isjigmoderealvbat = false;
platform_set_drvdata(pdev, fuelgauge);
(void) debugfs_create_file("sm5714-fuelgauge-regs",
0444, NULL, (void *)fuelgauge, &sm5714_fuelgauge_debugfs_fops);
if (!sm5714_fg_init(fuelgauge, false)) {
pr_err("%s: Failed to Initialize Fuelgauge\n", __func__);
goto err_data_free;
}
fuelgauge->capacity_max = fuelgauge->pdata->capacity_max;
raw_soc_val.intval = sm5714_get_soc(fuelgauge);
#if defined(CONFIG_DISABLE_SAVE_CAPACITY_MAX)
pr_info("%s : CONFIG_DISABLE_SAVE_CAPACITY_MAX\n",
__func__);
#endif
#if defined(CONFIG_UI_SOC_PROLONGING)
if (raw_soc_val.intval > fuelgauge->capacity_max)
sm5714_fg_calculate_dynamic_scale(fuelgauge, 100, false);
#else
if (raw_soc_val.intval > fuelgauge->capacity_max)
sm5714_fg_calculate_dynamic_scale(fuelgauge, 100);
#endif
/* SW/HW init code. SW/HW V Empty mode must be opposite ! */
fuelgauge->info.temperature = 300; /* default value */
pr_info("%s: SW/HW V empty init\n", __func__);
sm5714_fg_set_vempty(fuelgauge, VEMPTY_MODE_HW);
psy_fg.drv_data = fuelgauge;
psy_fg.supplied_to = sm5714_fg_supplied_to;
psy_fg.num_supplicants = ARRAY_SIZE(sm5714_fg_supplied_to),
fuelgauge->psy_fg = power_supply_register(&pdev->dev, &sm5714_fuelgauge_power_supply_desc, &psy_fg);
if (!fuelgauge->psy_fg) {
dev_err(&pdev->dev, "%s: failed to power supply fg register", __func__);
goto err_data_free;
}
fuelgauge->fg_irq = pdata->irq_base + SM5714_FG_IRQ_INT_LOW_VOLTAGE;
pr_info("[%s]IRQ_BASE(%d) FG_IRQ(%d)\n",
__func__, pdata->irq_base, fuelgauge->fg_irq);
fuelgauge->is_fuel_alerted = false;
if (fuelgauge->pdata->fuel_alert_soc >= 0) {
if (sm5714_fg_fuelalert_init(fuelgauge,
fuelgauge->pdata->fuel_alert_soc)) {
fuelgauge->fuel_alert_ws = wakeup_source_register(&pdev->dev, "fuel_alerted");
if (fuelgauge->fg_irq) {
INIT_DELAYED_WORK(&fuelgauge->isr_work, sm5714_fg_isr_work);
ret = request_threaded_irq(fuelgauge->fg_irq,
NULL, sm5714_fg_irq_thread,
0,
"fuelgauge-irq", fuelgauge);
if (ret) {
pr_err("%s: Failed to Request IRQ\n", __func__);
goto err_supply_unreg;
}
}
} else {
pr_err("%s: Failed to Initialize Fuel-alert\n",
__func__);
goto err_supply_unreg;
}
}
fuelgauge->sleep_initial_update_of_soc = false;
fuelgauge->initial_update_of_soc = true;
ret = sm5714_fg_create_attrs(&fuelgauge->psy_fg->dev);
if (ret) {
dev_err(sm5714->dev,
"%s : Failed to create_attrs\n", __func__);
}
sec_chg_set_dev_init(SC_DEV_FG);
pr_info("%s: SM5714 Fuelgauge Driver[%s] Loaded\n", __func__, SM5714_FUELGAUGE_VERSION);
return 0;
err_supply_unreg:
sm5714_fuelgauge_free_irqs(fuelgauge);
power_supply_unregister(fuelgauge->psy_fg);
err_data_free:
#if defined(CONFIG_OF)
kfree(fuelgauge->battery_data);
#endif
err_pdata_free:
kfree(fuelgauge_data);
mutex_destroy(&fuelgauge->fg_lock);
err_free:
kfree(fuelgauge);
return ret;
}
static int sm5714_fuelgauge_remove(struct platform_device *pdev)
{
struct sm5714_fuelgauge_data *fuelgauge =
platform_get_drvdata(pdev);
sm5714_fuelgauge_free_irqs(fuelgauge);
if (fuelgauge->pdata->fuel_alert_soc >= 0)
wakeup_source_unregister(fuelgauge->fuel_alert_ws);
mutex_destroy(&fuelgauge->fg_lock);
kfree(fuelgauge);
return 0;
}
static int sm5714_fuelgauge_suspend(struct device *dev)
{
return 0;
}
static int sm5714_fuelgauge_resume(struct device *dev)
{
struct sm5714_fuelgauge_data *fuelgauge = dev_get_drvdata(dev);
fuelgauge->sleep_initial_update_of_soc = true;
return 0;
}
static void sm5714_fuelgauge_shutdown(struct platform_device *pdev)
{
struct sm5714_fuelgauge_data *fuelgauge = platform_get_drvdata(pdev);
pr_info("%s: ++\n", __func__);
atomic_inc(&fuelgauge->shutdown_cnt);
sm5714_fuelgauge_free_irqs(fuelgauge);
if (fuelgauge->using_hw_vempty)
sm5714_fg_set_vempty(fuelgauge, false);
pr_info("%s: --\n", __func__);
}
static SIMPLE_DEV_PM_OPS(sm5714_fuelgauge_pm_ops, sm5714_fuelgauge_suspend,
sm5714_fuelgauge_resume);
static struct platform_driver sm5714_fuelgauge_driver = {
.driver = {
.name = "sm5714-fuelgauge",
.owner = THIS_MODULE,
#ifdef CONFIG_PM
.pm = &sm5714_fuelgauge_pm_ops,
#endif
},
.probe = sm5714_fuelgauge_probe,
.remove = sm5714_fuelgauge_remove,
.shutdown = sm5714_fuelgauge_shutdown,
};
static int __init sm5714_fuelgauge_init(void)
{
pr_info("%s:\n", __func__);
return platform_driver_register(&sm5714_fuelgauge_driver);
}
static void __exit sm5714_fuelgauge_exit(void)
{
platform_driver_unregister(&sm5714_fuelgauge_driver);
}
module_init(sm5714_fuelgauge_init);
module_exit(sm5714_fuelgauge_exit);
MODULE_DESCRIPTION("Samsung SM5714 Fuel Gauge Driver");
MODULE_AUTHOR("Samsung Electronics");
MODULE_LICENSE("GPL");
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