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cw2217: Dynamic adjust UI_FULL

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Discharge:
update UI_FULL to Real_SOC when real_soc > UI_FULL
Charing:
adjust UI_FULL to close to UI_FULL_SET step by step

Change-Id: I443cbacb29bfef9198855256e79e700753312fed
Signed-off-by: xuwt2 <xuwt2@lenovo.com>
Reviewed-on: https://gerrit.mot.com/2536020
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Yonghua Yan <yanyh2@motorola.com>
Reviewed-by: Guobin Zhang <zhanggb@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
xuwt2 2023-03-10 22:07:03 +08:00 • committed by Wentao Xu
commit 7d45d05c31
1 changed files with 62 additions and 3 deletions
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65
drivers/power/cw2217b_fg_mmi/cw2217B_fuel_gauge_base.c
View file

@ -13,6 +13,7 @@
#include <linux/version.h>
#include <linux/sizes.h>
#include <linux/regulator/consumer.h>
#include <linux/jiffies.h>
#define CWFG_ENABLE_LOG 1 /* CHANGE Customer need to change this for enable/disable log */
@ -337,15 +338,53 @@ static int cw_get_voltage(struct cw_battery *cw_bat)
* enough for the application. The low byte(0x05) provides more accurate fractional part of the SOC and its
* LSB is (1/256) %.
*/
#ifndef MAX_VAL
#define MAX_VAL( x, y ) ( ((x) > (y)) ? (x) : (y) )
#endif
#define TIMER_INTERVALS 1000 * 60 /* unit:ms */
static bool jiffies_timer_expire(void) {
unsigned long cur_jiffies = jiffies;
static unsigned long last_jiffies = 0;
unsigned long intr_timeout = msecs_to_jiffies(TIMER_INTERVALS);
bool ret = false;
if (!last_jiffies)
last_jiffies = cur_jiffies;
if (time_after(cur_jiffies, intr_timeout + last_jiffies))
ret = true;
else
ret = false;
if (ret) {
cw_printk("exire 10s, curr_jiffies:%dms, last jiffies %d",
jiffies_to_msecs(cur_jiffies), jiffies_to_msecs(last_jiffies));
last_jiffies = cur_jiffies;
}
return ret;
}
static int cw_get_capacity(struct cw_battery *cw_bat)
{
int ret;
unsigned char reg_val[2] = { 0, 0 };
int ui_100 = cw_bat->ui_full;
int soc_h;
int soc_l;
int ui_soc;
int remainder;
int chr_st_now = 0;// 0 discharge, 1 charging;
static int ui_full_pre = 0;
int ui_full_temp = 0;
if (ui_full_pre == 0)
ui_full_pre = cw_bat->ui_full;
if (cw_bat->batt_status == POWER_SUPPLY_STATUS_CHARGING)
chr_st_now = 1;
else
chr_st_now = 0;
ret = cw_read_word(cw_bat->client, REG_SOC_INT, reg_val);
if (ret < 0)
@ -353,8 +392,28 @@ static int cw_get_capacity(struct cw_battery *cw_bat)
soc_h = reg_val[0];
soc_l = reg_val[1];
cw_bat->raw_soc = soc_h;
ui_soc = ((soc_h * 256 + soc_l) * 100)/ (ui_100 * 256);
remainder = (((soc_h * 256 + soc_l) * 100 * 100) / (ui_100 * 256)) % 100;
ui_full_temp = ui_full_pre;
if (chr_st_now) {
if (ui_full_temp > cw_bat->ui_full) {
if (jiffies_timer_expire()) {
ui_full_temp -= 1;
cw_printk("CW2015[%d]: UI_FULL-- %d!!!!\n", __LINE__, ui_full_temp);
}
}
}
if (!chr_st_now) {
if ((soc_h * 256 + soc_l) > ui_full_temp * 256) {
cw_printk("CW2015[%d]: update UI_FULL to %d from %d !!!!\n", __LINE__, (soc_h * 256 + soc_l) / 256, ui_full_temp);
ui_full_temp = (soc_h * 256 + soc_l) / 256;
}
}
ui_full_pre = ui_full_temp;
ui_soc = ((soc_h * 256 + soc_l) * 100)/ (ui_full_pre * 256);
remainder = (((soc_h * 256 + soc_l) * 100 * 100) / (ui_full_pre * 256)) % 100;
if (ui_soc >= 100){
cw_printk("CW2015[%d]: UI_SOC = %d larger 100!!!!\n", __LINE__, ui_soc);
ui_soc = 100;