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kernel_samsung_a34x-permissive/drivers/power/supply/mtk_pe4.c
Fede2782 c05564c4d8
Import A346BXXU1AWB9 kernel source 
Android 13
2024-04-28 15:49:01 +02:00

2023 lines
50 KiB
C
Executable file
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2019 MediaTek Inc.
*/
/*
*
* Filename:
* ---------
* mtk_pe4.c
*
* Project:
* --------
* Android_Software
*
* Description:
* ------------
* This Module defines functions of Battery charging
*
* Author:
* -------
* Wy Chuang
*
*/
#include <linux/init.h> /* For init/exit macros */
#include <linux/module.h> /* For MODULE_ marcros */
#include <linux/fs.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/platform_device.h>
#include <linux/device.h>
#include <linux/kdev_t.h>
#include <linux/fs.h>
#include <linux/cdev.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/wait.h>
#include <linux/slab.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/poll.h>
#include <linux/power_supply.h>
#include <linux/pm_wakeup.h>
#include <linux/time.h>
#include <linux/mutex.h>
#include <linux/kthread.h>
#include <linux/proc_fs.h>
#include <linux/platform_device.h>
#include <linux/seq_file.h>
#include <linux/scatterlist.h>
#include <linux/suspend.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_address.h>
#include <linux/reboot.h>
#include "mtk_pe4.h"
#include "mtk_charger_algorithm_class.h"
#define PE40_VBUS_STEP 50
#define PE40_MIN_WATT 5000000
#define PE40_VBUS_IR_DROP_THRESHOLD 1200
static int pe4_dbg_level = PE4_DEBUG_LEVEL;
int pe4_get_debug_level(void)
{
return pe4_dbg_level;
}
void mtk_pe40_reset(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe40;
pe40 = dev_get_drvdata(&alg->dev);
if (pe40->state == PE4_RUN || pe40->state == PE4_INIT ||
pe40->state == PE4_TUNING || pe40->state == PE4_POSTCC) {
pe4_hal_set_adapter_cap_end(alg, 5000, 2000);
pe4_hal_set_mivr(alg, CHG1, pe40->min_charger_voltage);
pe4_hal_enable_vbus_ovp(alg, true);
pe40->polling_interval = 10;
pe40->state = PE4_HW_READY;
pe4_err("set TD true\n");
pe4_hal_enable_termination(alg, CHG1, true);
if (alg->config == DUAL_CHARGERS_IN_SERIES) {
pe4_hal_enable_charger(alg, CHG2, false);
pe4_hal_charger_enable_chip(alg, CHG2, false);
}
}
pe40->cap.nr = 0;
pe40->pe4_input_current_limit = -1;
pe40->pe4_input_current_limit_setting = -1;
pe40->max_vbus = pe40->pe40_max_vbus;
pe40->max_ibus = pe40->pe40_max_ibus;
pe40->max_charger_ibus = pe40->pe40_max_ibus *
(100 - pe40->ibus_err) / 100;
}
static int _pe4_init_algo(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe4;
int cnt;
pe4 = dev_get_drvdata(&alg->dev);
pe4_dbg("%s\n", __func__);
mutex_lock(&pe4->access_lock);
if (pe4_hal_init_hardware(alg) != 0) {
pe4->state = PE4_HW_FAIL;
pe4_err("%s:init hw fail\n", __func__);
} else
pe4->state = PE4_HW_READY;
mtk_pe40_reset(alg);
if (alg->config == DUAL_CHARGERS_IN_PARALLEL) {
pe4_err("%s does not support DUAL_CHARGERS_IN_PARALLEL\n",
__func__);
alg->config = SINGLE_CHARGER;
} else if (alg->config == DUAL_CHARGERS_IN_SERIES) {
cnt = pe4_hal_get_charger_cnt(alg);
if (cnt == 2)
alg->config = DUAL_CHARGERS_IN_SERIES;
else
alg->config = SINGLE_CHARGER;
} else
alg->config = SINGLE_CHARGER;
mutex_unlock(&pe4->access_lock);
return 0;
}
static char *pe4_state_to_str(int state)
{
switch (state) {
case PE4_HW_UNINIT:
return "PE4_HW_UNINIT";
case PE4_HW_FAIL:
return "PE4_HW_FAIL";
case PE4_HW_READY:
return "PE4_HW_READY";
case PE4_TA_NOT_SUPPORT:
return "PE4_TA_NOT_SUPPORT";
case PE4_RUN:
return "PE4_RUN";
case PE4_TUNING:
return "PE4_TUNING";
case PE4_POSTCC:
return "PE4_POSTCC";
case PE4_INIT:
return "PE4_INIT";
default:
break;
}
pe4_err("%s unknown state:%d\n", __func__
, state);
return "PE4_UNKNOWN";
}
static int _pe4_is_algo_ready(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe4;
int ret_value, uisoc;
int ret, tmp;
int oldstate;
pe4 = dev_get_drvdata(&alg->dev);
mutex_lock(&pe4->access_lock);
__pm_stay_awake(pe4->suspend_lock);
oldstate = pe4->state;
switch (pe4->state) {
case PE4_HW_UNINIT:
case PE4_HW_FAIL:
ret_value = ALG_INIT_FAIL;
break;
case PE4_INIT:
case PE4_HW_READY:
uisoc = pe4_hal_get_uisoc(alg);
ret = pe4_hal_is_pd_adapter_ready(alg);
ret_value = ret;
if (ret == ALG_READY) {
uisoc = pe4_hal_get_uisoc(alg);
tmp = pe4_hal_get_battery_temperature(alg);
pe4_err("c:%d,%d uisoc:%d,%d tmp:%d,%d,%d\n",
pe4->input_current_limit1,
pe4->charging_current_limit1,
uisoc,
pe4->pe40_stop_battery_soc,
tmp,
pe4->high_temp_to_enter_pe40,
pe4->low_temp_to_enter_pe40);
if (pe4->input_current_limit1 != -1 ||
pe4->charging_current_limit1 != -1 ||
pe4->input_current_limit2 != -1 ||
pe4->charging_current_limit2 != -1 ||
uisoc > pe4->pe40_stop_battery_soc ||
uisoc == -1 ||
tmp > pe4->high_temp_to_enter_pe40 ||
tmp < pe4->low_temp_to_enter_pe40)
ret_value = ALG_NOT_READY;
} else if (ret == ALG_TA_NOT_SUPPORT)
pe4->state = PE4_TA_NOT_SUPPORT;
break;
case PE4_TA_NOT_SUPPORT:
ret_value = ALG_TA_NOT_SUPPORT;
break;
case PE4_RUN:
case PE4_TUNING:
case PE4_POSTCC:
ret_value = ALG_RUNNING;
break;
default:
ret_value = ALG_INIT_FAIL;
break;
}
pe4_dbg("%s state:%s=>%s ret:%d\n", __func__,
pe4_state_to_str(oldstate),
pe4_state_to_str(pe4->state),
ret_value);
__pm_relax(pe4->suspend_lock);
mutex_unlock(&pe4->access_lock);
return ret_value;
}
void mtk_pe40_init_cap(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe4;
pe4 = dev_get_drvdata(&alg->dev);
pe4_hal_get_adapter_cap(alg, &pe4->cap);
}
int mtk_pe40_get_setting_by_watt(struct chg_alg_device *alg, int *voltage,
int *adapter_ibus, int *actual_current, int watt,
int *ibus_current_setting)
{
int i = 0;
struct mtk_pe40 *pe40;
struct pe4_power_cap *pe40_cap;
int vbus = 0, ibus = 0, ibus_setting = 0;
int idx = 0, ta_ibus = 0;
pe40 = dev_get_drvdata(&alg->dev);
pe40_cap = &pe40->cap;
pe4_dbg("%s cv:%d icl:%d:%d:%d:%d, watt:%d pdp:%d,%d\n",
__func__,
pe40->cv,
pe40->input_current_limit1,
pe40->input_current_limit2,
pe40->pe4_input_current_limit,
pe40->pe4_input_current_limit_setting,
watt,
pe40_cap->pwr_limit[i],
pe40_cap->pdp);
for (i = 0; i < pe40_cap->nr; i++) {
int max_ibus = 0;
int max_vbus = 0;
/* update upper bound */
if (pe40_cap->ma[i] > pe40->max_ibus)
max_ibus = pe40->max_ibus;
else
max_ibus = pe40_cap->ma[i];
pe4_err("1.%d %d %d %d\n",
pe40_cap->ma[i],
pe40->max_ibus,
max_ibus,
pe40->pe40_max_ibus);
if (pe40->input_current_limit1 != -1 &&
max_ibus > pe40->input_current_limit1 / 1000)
max_ibus = pe40->input_current_limit1 / 1000;
pe4_err("2.%d %d\n",
pe40->input_current_limit1,
max_ibus);
if (pe40->pe4_input_current_limit != -1 &&
max_ibus > (pe40->pe4_input_current_limit / 1000))
max_ibus = pe40->pe4_input_current_limit / 1000;
pe4_err("3.%d %d\n",
pe40->pe4_input_current_limit,
max_ibus);
pe40->max_charger_ibus = max_ibus *
(100 - pe40->ibus_err) / 100;
pe4_err("idx:%d nr:%d mV:%d:%d mA:%d\n",
i,
pe40_cap->nr,
pe40_cap->max_mv[i],
pe40_cap->min_mv[i],
pe40_cap->ma[i]);
pe4_err("ibus:%d %d err:%d\n",
pe40->max_charger_ibus,
max_ibus,
pe40->ibus_err);
if (pe40_cap->max_mv[i] > pe40->max_vbus)
max_vbus = pe40->max_vbus;
else
max_vbus = pe40_cap->max_mv[i];
if (*voltage != 0 && *voltage <= max_vbus &&
*voltage >= pe40_cap->min_mv[i]) {
ibus = watt / *voltage;
vbus = *voltage;
ibus_setting = max_ibus;
ta_ibus = pe40_cap->ma[i];
if (ibus <= max_ibus) {
idx = 1;
break;
}
}
/* is 5v ok ? */
if (max_vbus >= 5000 &&
pe40_cap->min_mv[i] <= 5000 &&
5000 * pe40->max_charger_ibus >= watt) {
vbus = 5000;
ibus = watt / 5000;
ibus_setting = max_ibus;
ta_ibus = pe40_cap->ma[i];
idx = 2;
break;
}
/* is power limit set */
if (pe40_cap->pwr_limit[i] && pe40_cap->pdp > 0) {
if (watt > pe40_cap->pdp * 1000000)
watt = pe40_cap->pdp * 1000000;
if (max_vbus * (pe40->max_charger_ibus - 200) >= watt) {
ibus = pe40->max_charger_ibus - 200;
vbus = watt / ibus;
ibus_setting = max_ibus;
ta_ibus = pe40_cap->ma[i];
if (vbus > max_vbus)
vbus = max_vbus;
if (vbus < pe40_cap->min_mv[i])
vbus = pe40_cap->min_mv[i];
idx = 4;
break;
}
}
/* is max watt ok */
if (max_vbus * (pe40->max_charger_ibus - 200) >= watt &&
!pe40_cap->pwr_limit[i]) {
ibus = pe40->max_charger_ibus - 200;
vbus = watt / ibus;
ibus_setting = max_ibus;
ta_ibus = pe40_cap->ma[i];
if (vbus < pe40_cap->min_mv[i])
vbus = pe40_cap->min_mv[i];
idx = 3;
break;
}
vbus = max_vbus;
ibus = pe40->max_charger_ibus;
ibus_setting = max_ibus;
ta_ibus = pe40_cap->ma[i];
idx = 5;
}
*voltage = vbus;
*ibus_current_setting = ibus_setting;
*actual_current = ibus;
*adapter_ibus = ta_ibus;
pe4_err("%s:[%d,%d]%d vbus:%d ibus:%d aicl:%d current:%d %d\n",
__func__,
idx, i,
watt, *voltage,
*adapter_ibus,
*ibus_current_setting,
ibus, pe40->max_charger_ibus);
return idx;
}
int mtk_pe40_pd_1st_request(struct chg_alg_device *alg,
int adapter_mv, int adapter_ma, int ma)
{
unsigned int oldmA = 3000000;
int ret;
int mivr;
// bool chg2_enable = false;
struct mtk_pe40 *pe4;
pe4 = dev_get_drvdata(&alg->dev);
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
if (is_dual_charger_supported(pinfo))
charger_dev_is_enabled(pinfo->chg2_dev, &chg2_enable);
#endif
mivr = pe4->min_charger_voltage / 1000;
pe4_hal_set_mivr(alg, CHG1, pe4->min_charger_voltage);
pe4_hal_get_input_current(alg, CHG1, &oldmA);
oldmA = oldmA / 1000;
pe4_err("pe40_pd_req:vbus:%d ibus:%d input_current:%d %d\n",
adapter_mv, adapter_ma, ma, oldmA);
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
if (pinfo->data.parallel_vbus && (oldmA * 2 > ma)) {
if (chg2_enable) {
charger_dev_set_input_current(pinfo->chg1_dev,
ma * 1000 / 2);
charger_dev_set_input_current(pinfo->chg2_dev,
ma * 1000 / 2);
} else
charger_dev_set_input_current(pinfo->chg1_dev,
ma * 1000);
} else if (pinfo->data.parallel_vbus == false && (oldmA > ma))
charger_dev_set_input_current(pinfo->chg1_dev, ma * 1000);
#else
if (oldmA > ma)
pe4_hal_set_input_current(alg, CHG1, ma * 1000);
#endif
ret = pe4_hal_1st_set_adapter_cap(alg, adapter_mv, adapter_ma);
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
if (pinfo->data.parallel_vbus && (oldmA * 2 < ma)) {
if (chg2_enable) {
charger_dev_set_input_current(pinfo->chg1_dev,
ma * 1000 / 2);
charger_dev_set_input_current(pinfo->chg2_dev,
ma * 1000 / 2);
} else
charger_dev_set_input_current(pinfo->chg1_dev,
ma * 1000);
} else if (pinfo->data.parallel_vbus == false && (oldmA < ma))
charger_dev_set_input_current(pinfo->chg1_dev, ma * 1000);
#else
if (oldmA < ma)
pe4_hal_set_input_current(alg, CHG1, ma * 1000);
#endif
if ((adapter_mv - PE40_VBUS_IR_DROP_THRESHOLD) > mivr)
mivr = adapter_mv - PE40_VBUS_IR_DROP_THRESHOLD;
pe4_hal_set_mivr(alg, CHG1, mivr * 1000);
pe4->pe4_input_current_limit_setting = ma * 1000;
return ret;
}
int mtk_pe40_pd_request(struct chg_alg_device *alg,
int *adapter_vbus, int *adapter_ibus, int ma)
{
unsigned int oldmA = 3000000;
unsigned int oldmivr = 4600;
int ret;
int mivr;
int adapter_mv, adapter_ma;
struct mtk_pe40 *pe40;
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
bool chg2_enable = false;
if (is_dual_charger_supported(pinfo))
charger_dev_is_enabled(pinfo->chg2_dev, &chg2_enable);
#endif
pe40 = dev_get_drvdata(&alg->dev);
adapter_mv = *adapter_vbus;
adapter_ma = *adapter_ibus;
pe4_hal_get_mivr(alg, CHG1, &oldmivr);
mivr = pe40->min_charger_voltage / 1000;
pe4_hal_set_mivr(alg, CHG1, pe40->min_charger_voltage);
pe4_hal_get_input_current(alg, CHG1, &oldmA);
oldmA = oldmA / 1000;
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
if (pinfo->data.parallel_vbus && (oldmA * 2 > ma)) {
if (chg2_enable) {
charger_dev_set_input_current(pinfo->chg1_dev,
ma * 1000 / 2);
charger_dev_set_input_current(pinfo->chg2_dev,
ma * 1000 / 2);
} else
charger_dev_set_input_current(pinfo->chg1_dev,
ma * 1000);
} else if (pinfo->data.parallel_vbus == false && (oldmA > ma))
charger_dev_set_input_current(pinfo->chg1_dev, ma * 1000);
#else
if (oldmA > ma)
pe4_hal_set_input_current(alg, CHG1, ma * 1000);
#endif
if (pe40->cap.pdp > 0 &&
adapter_mv * adapter_ma > pe40->cap.pdp * 1000000) {
*adapter_ibus = pe40->cap.pdp * 1000000 / adapter_mv;
pe4_hal_set_input_current(alg, CHG1, *adapter_ibus * 1000);
}
ret = pe4_hal_set_adapter_cap(alg, adapter_mv, *adapter_ibus);
pe4_err("%s: vbus:%d ibus:%d ibus2:%d input_current:%d pdp:%d ret:%d\n",
__func__, adapter_mv, adapter_ma, *adapter_ibus, ma,
pe40->cap.pdp, ret);
if (ret == MTK_ADAPTER_PE4_REJECT) {
pe4_err("pe40_pd_req: reject\n");
goto err;
}
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
if (pinfo->data.parallel_vbus && (oldmA * 2 < ma)) {
if (chg2_enable) {
charger_dev_set_input_current(pinfo->chg1_dev,
ma * 1000 / 2);
charger_dev_set_input_current(pinfo->chg2_dev,
ma * 1000 / 2);
} else
charger_dev_set_input_current(pinfo->chg1_dev,
ma * 1000);
} else if (pinfo->data.parallel_vbus == false && (oldmA < ma))
charger_dev_set_input_current(pinfo->chg1_dev, ma * 1000);
#else
if (oldmA < ma)
pe4_hal_set_input_current(alg, CHG1, ma * 1000);
#endif
if ((adapter_mv - PE40_VBUS_IR_DROP_THRESHOLD) > mivr)
mivr = adapter_mv - PE40_VBUS_IR_DROP_THRESHOLD;
pe4_hal_set_mivr(alg, CHG1, mivr * 1000);
pe40->pe4_input_current_limit_setting = ma * 1000;
return ret;
err:
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
if (pinfo->data.parallel_vbus && (oldmA * 2 > ma)) {
if (chg2_enable) {
charger_dev_set_input_current(pinfo->chg1_dev,
ma * 1000 / 2);
charger_dev_set_input_current(pinfo->chg2_dev,
ma * 1000 / 2);
} else
charger_dev_set_input_current(pinfo->chg1_dev,
ma * 1000);
} else if (pinfo->data.parallel_vbus == false && (oldmA > ma))
charger_dev_set_input_current(pinfo->chg1_dev, ma * 1000);
#else
pe4_hal_set_input_current(alg, CHG1, ma * 1000);
#endif
pe4_hal_set_mivr(alg, CHG1, oldmivr);
return ret;
}
int mtk_pe40_get_ibus(struct chg_alg_device *alg, u32 *ibus)
{
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
int ret = 0;
unsigned int chg1_ibus = 0;
unsigned int chg2_ibus = 0;
int ibat = 0;
int chg1_ibat = 0;
int chg2_ibat = 0;
int chg2_watt = 0;
bool is_enable = false;
if (is_dual_charger_supported(pinfo) == true)
charger_dev_is_enabled(pinfo->chg2_dev, &is_enable);
#endif
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
if (pinfo->data.parallel_vbus) {
ret = charger_dev_get_ibus(pinfo->chg1_dev, &chg1_ibus);
if (is_enable) {
ret = charger_dev_get_ibat(pinfo->chg1_dev, &chg1_ibat);
if (ret < 0)
pe4_err("[%s] get ibat fail\n", __func__);
ret = charger_dev_get_ibat(pinfo->chg2_dev, &chg2_ibat);
if (ret < 0) {
ibat = battery_get_bat_current();
chg2_ibat = ibat * 100 - chg1_ibat;
}
if (ibat < 0 || chg2_ibat < 0)
chg2_watt = 0;
else
chg2_watt = chg2_ibat / 1000 *
battery_get_bat_voltage();
chg2_ibus = chg2_watt / battery_get_vbus() * 1000;
}
*ibus = chg1_ibus + chg2_ibus;
pe4_err("[%s] chg2_watt:%d ibat2:%d ibat1:%d ibat:%d ibus1:%d ibus2:%d ibus:%d\n",
__func__, chg2_watt, chg2_ibat, chg1_ibat, ibat * 100,
chg1_ibus, chg2_ibus, *ibus);
} else {
ret = charger_dev_get_ibus(pinfo->chg1_dev, ibus);
}
#endif
pe4_hal_get_ibus(alg, ibus);
return 0;
}
int mtk_pe40_get_init_watt(struct chg_alg_device *alg)
{
int ret;
struct mtk_pe40 *pe40;
int vbus1, ibus1;
int vbus2, ibus2;
int vbat1, vbat2;
int voltage = 0, input_current = 1000, actual_current = 0;
int voltage1 = 0, adapter_ibus;
bool is_enable = false, is_chip_enable = false;
int i;
pe40 = dev_get_drvdata(&alg->dev);
voltage = 0;
mtk_pe40_get_setting_by_watt(alg, &voltage, &adapter_ibus,
&actual_current, 27000000, &input_current);
ret = mtk_pe40_pd_request(alg, &voltage, &adapter_ibus,
input_current);
if (ret != 0 && ret != MTK_ADAPTER_PE4_REJECT) {
pe4_err("[pe40_i1] err:1 %d\n", ret);
return -1;
}
for (i = 0; i < 3 ; i++) {
pe4_hal_dump_registers(alg);
msleep(100);
}
mtk_pe40_get_ibus(alg, &ibus1);
vbus1 = pe4_hal_get_vbus(alg);
ibus1 = ibus1 / 1000;
vbat1 = pe4_hal_get_vbat(alg);
voltage1 = voltage;
voltage = 0;
mtk_pe40_get_setting_by_watt(alg, &voltage, &adapter_ibus,
&actual_current, 15000000, &input_current);
for (i = 0; i < 6 ; i++) {
ret = mtk_pe40_pd_request(alg, &voltage, &adapter_ibus,
input_current);
if (ret != 0) {
pe4_err("[pe40_i1] err:2 %d\n", ret);
return -1;
}
msleep(100);
mtk_pe40_get_ibus(alg, &ibus2);
vbus2 = pe4_hal_get_vbus(alg);
ibus2 = ibus2 / 1000;
vbat2 = pe4_hal_get_vbat(alg);
if (alg->config == DUAL_CHARGERS_IN_SERIES) {
pe4_hal_is_charger_enable(alg, CHG2, &is_enable);
is_chip_enable = pe4_hal_is_chip_enable(alg, CHG2);
}
pe4_err("[pe40_vbus] vbus1:%d ibus1:%d vbus2:%d ibus2:%d watt:%d en:%d %d vbat:%d %d\n",
vbus1, ibus1, vbus2, ibus2, voltage1 * ibus1, is_enable,
is_chip_enable, vbat1, vbat2);
}
return voltage1 * ibus1;
}
void mtk_pe40_end(struct chg_alg_device *alg, int type)
{
mtk_pe40_reset(alg);
pe4_err("%s: retry:%d\n", __func__, type);
}
int mtk_pe40_init_state(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe4;
int ret = 0;
int vbus1, vbat1, ibus1;
int vbus2, vbat2, ibus2;
struct pe4_pps_status cap, cap1, cap2;
int voltage, adapter_ibus = 1000, actual_current;
int watt = 0;
int i;
int input_current = 0;
bool chg2_chip_enabled = false;
int chg_cnt, is_chip_enabled;
pe4 = dev_get_drvdata(&alg->dev);
pe4_err("set TD false\n");
pe4_hal_enable_termination(alg, CHG1, false);
pe4_hal_enable_vbus_ovp(alg, false);
mtk_pe40_init_cap(alg);
voltage = 0;
mtk_pe40_get_setting_by_watt(alg, &voltage, &adapter_ibus,
&actual_current, 5000000, &input_current);
ret = mtk_pe40_pd_1st_request(alg, voltage, actual_current,
actual_current);
if (ret != 0) {
pe4_err("[pe40_i0] err:1 %d\n", ret);
goto retry;
}
/* disable charger */
pe4_hal_enable_powerpath(alg, CHG1, false);
chg_cnt = pe4_hal_get_charger_cnt(alg);
if (chg_cnt > 1 && alg->config == DUAL_CHARGERS_IN_SERIES) {
for (i = CHG2; i < CHG_MAX; i++) {
is_chip_enabled = pe4_hal_is_chip_enable(alg, i);
if (is_chip_enabled) {
pe4_hal_enable_charger(alg, i, false);
pe4_hal_charger_enable_chip(alg, i, false);
}
}
}
msleep(500);
cap.output_ma = 0;
cap.output_mv = 0;
ret = pe40_hal_get_adapter_output(alg, &cap);
pe4->can_query = true;
if (ret == 0 && (cap.output_ma == -1 || cap.output_mv == -1))
pe4->can_query = false;
else if (ret == 1)
pe4->can_query = false;
else if (ret != 0) {
pe4_err("[pe40_i0] err:2 %d\n", ret);
goto err;
}
pe4_err("[pe40_i0] can_query:%d ret:%d\n",
pe4->can_query,
ret);
pe4->pmic_vbus = pe4_hal_get_vbus(alg);
pe4->TA_vbus = cap.output_mv;
pe4->vbus_cali = pe4->TA_vbus - pe4->pmic_vbus;
pe4_err("[pe40_i0]pmic_vbus:%d TA_vbus:%d cali:%d ibus:%d chip2:%d\n",
pe4->pmic_vbus, pe4->TA_vbus, pe4->vbus_cali,
cap.output_ma, chg2_chip_enabled);
/*enable charger*/
pe4_hal_enable_powerpath(alg, CHG1, true);
if (alg->config == SINGLE_CHARGER) {
pe4_hal_set_charging_current(alg,
CHG1, pe4->sc_charger_current);
pe4_hal_set_input_current(alg,
CHG1, pe4->sc_input_current);
} else if (alg->config == DUAL_CHARGERS_IN_SERIES) {
pe4_hal_set_charging_current(alg,
CHG1, pe4->dcs_chg2_charger_current);
pe4_hal_set_input_current(alg,
CHG1, pe4->dcs_input_current);
chg_cnt = pe4_hal_get_charger_cnt(alg);
if (chg_cnt > 1) {
for (i = CHG2; i < CHG_MAX; i++) {
is_chip_enabled =
pe4_hal_is_chip_enable(alg, i);
if (is_chip_enabled == false) {
pe4_hal_charger_enable_chip(
alg, i, true);
pe4_hal_enable_charger(alg, i, true);
pe4_hal_set_charging_current(alg,
CHG2,
pe4->dcs_chg2_charger_current);
pe4_hal_set_input_current(alg,
CHG2,
pe4->dcs_chg2_charger_current);
}
}
}
}
pe4_hal_dump_registers(alg);
msleep(100);
if (cap.output_ma > 100) {
pe4_err("[pe40_i0] FOD fail :%d\n", cap.output_ma);
goto err;
}
if (pe4->can_query == true) {
/* measure 1 */
voltage = 0;
mtk_pe40_get_setting_by_watt(alg, &voltage, &adapter_ibus,
&actual_current, 5000000, &input_current);
ret = mtk_pe40_pd_request(alg, &voltage, &actual_current,
actual_current);
if (ret != 0) {
pe4_err("[pe40_i0] err:3 %d\n", ret);
goto err;
}
for (i = 0; i < 4; i++) {
msleep(250);
vbus1 = pe4_hal_get_vbus(alg);
vbat1 = pe4_hal_get_vbat(alg);
mtk_pe40_get_ibus(alg, &ibus1);
ibus1 = ibus1 / 1000;
ret = pe40_hal_get_adapter_output(alg, &cap1);
if (ret != 0) {
pe4_err("[pe40_i0] err:4 %d\n", ret);
goto err;
}
pe4_err("[pe40_i11]vbus:%d ibus:%d vbat:%d TA_vbus:%d TA_ibus:%d setting:%d %d\n",
vbus1, ibus1, vbat1,
cap1.output_mv, cap1.output_ma,
voltage, actual_current);
if (abs(cap1.output_ma - actual_current) < 200)
break;
}
/* measure 2 */
voltage = 0;
mtk_pe40_get_setting_by_watt(alg, &voltage, &adapter_ibus,
&actual_current, 7500000, &input_current);
ret = mtk_pe40_pd_request(alg, &voltage, &actual_current,
actual_current);
if (ret != 0) {
pe4_err("[pe40_i0] err:5 %d\n", ret);
goto err;
}
for (i = 0; i < 4; i++) {
msleep(250);
vbus2 = pe4_hal_get_vbus(alg);
vbat2 = pe4_hal_get_vbat(alg);
mtk_pe40_get_ibus(alg, &ibus2);
ibus2 = ibus2 / 1000;
ret = pe40_hal_get_adapter_output(alg, &cap2);
if (ret != 0)
goto err;
pe4_err("[pe40_i12]vbus:%d ibus:%d vbat:%d TA_vbus:%d TA_ibus:%d setting:%d %d\n",
vbus2, ibus2, vbat2,
cap2.output_mv, cap2.output_ma,
voltage, actual_current);
if (abs(cap2.output_ma - actual_current) < 200)
break;
}
pe4_err("[pe40_i1]vbus:%d,%d,%d,%d ibus:%d,%d,%d,%d vbat:%d,%d\n",
vbus1, vbus2, cap1.output_mv, cap2.output_mv,
ibus1, ibus2, cap1.output_ma, cap2.output_ma,
vbat1, vbat2);
pe4->r_sw = abs((vbus2 - vbus1) - (vbat2 - vbat1)) * 1000 /
abs(cap2.output_ma - cap1.output_ma);
pe4->r_cable = abs((cap2.output_mv - cap1.output_mv) -
(vbus2 - vbus1)) * 1000 /
abs(cap2.output_ma - cap1.output_ma);
pe4->r_cable_2 = abs(cap2.output_mv - pe4->vbus_cali - vbus2)
* 1000 / abs(cap2.output_ma);
pe4->r_cable_1 = abs(cap1.output_mv - pe4->vbus_cali - vbus1)
* 1000 / abs(cap1.output_ma);
if (pe4->r_cable_1 < pe4->pe40_r_cable_3a_lower)
pe4->pe4_input_current_limit = 5000000;
else if (pe4->r_cable_1 >= pe4->pe40_r_cable_3a_lower &&
pe4->r_cable_1 < pe4->pe40_r_cable_2a_lower)
pe4->pe4_input_current_limit = 3000000;
else if (pe4->r_cable_1 >= pe4->pe40_r_cable_2a_lower &&
pe4->r_cable_1 < pe4->pe40_r_cable_1a_lower)
pe4->pe4_input_current_limit = 2000000;
else if (pe4->r_cable_1 >= pe4->pe40_r_cable_1a_lower)
pe4->pe4_input_current_limit = 1000000;
pe4_err("[pe40_i2]r_sw:%d r_cable:%d r_cable_1:%d r_cable_2:%d pe4_icl:%d\n",
pe4->r_sw, pe4->r_cable, pe4->r_cable_1,
pe4->r_cable_2, pe4->pe4_input_current_limit);
} else
pe4_err("TA does not support query\n");
watt = mtk_pe40_get_init_watt(alg);
voltage = 0;
mtk_pe40_get_setting_by_watt(alg, &voltage, &adapter_ibus,
&actual_current, watt, &input_current);
pe4->avbus = voltage / 10 * 10;
ret = mtk_pe40_pd_request(alg, &pe4->avbus, &adapter_ibus,
input_current);
if (ret != 0 && ret != MTK_ADAPTER_PE4_REJECT) {
pe4_err("[pe40_i0] err:6 %d\n", ret);
goto err;
}
pe4->avbus = voltage;
pe4->ibus = watt / voltage;
pe4->watt = watt;
pe4->state = PE4_RUN;
pe4->polling_interval = 10;
return 0;
retry:
mtk_pe40_end(alg, 0);
return 0;
err:
mtk_pe40_end(alg, 2);
return 0;
}
int mtk_pe40_safety_check(struct chg_alg_device *alg)
{
int vbus;
struct mtk_pe40 *pe40;
struct pe4_pps_status cap;
//struct pd_status TAstatus = {0,};
struct pe4_adapter_status TAstatus;
int ret;
int tmp;
int i;
int high_tmp_cnt = 0;
pe40 = dev_get_drvdata(&alg->dev);
TAstatus.ocp = 0;
TAstatus.otp = 0;
TAstatus.ovp = 0;
TAstatus.temperature = 0;
/* vbus ov */
vbus = pe4_hal_get_vbus(alg);
if (vbus - pe40->avbus >= 2000) {
pe4_err("[pe40_err]vbus ov :vbus:%d avbus:%d\n",
vbus, pe40->avbus);
goto err;
}
/* cable voltage drop check */
if (pe40->can_query == true) {
ret = pe40_hal_get_adapter_output(alg, &cap);
if (ret != 0) {
pe4_err("[pe40_err] err:1 %d\n", ret);
goto err;
}
if (cap.output_mv != -1 &&
(cap.output_mv - vbus) > PE40_VBUS_IR_DROP_THRESHOLD) {
pe4_err("[pe40_err]vbus ov2 vbus:%d TAvbus:%d %d %d\n",
vbus, cap.output_mv,
PE40_VBUS_IR_DROP_THRESHOLD,
(cap.output_mv - vbus) >
PE40_VBUS_IR_DROP_THRESHOLD);
goto err;
}
/* TA V_BUS OVP */
if (cap.output_mv >= pe40->avbus * 12 / 10) {
pe4_err("[pe40_err]TA vbus ovp :vbus:%d avbus:%d\n",
cap.output_mv, pe40->avbus);
goto err;
}
}
/* TA Thermal */
for (i = 0; i < 3; i++) {
ret = pe40_hal_get_adapter_status(alg, &TAstatus);
if (TAstatus.temperature >= 100 &&
TAstatus.temperature != 0 &&
ret != MTK_ADAPTER_PE4_NOT_SUPPORT &&
ret != MTK_ADAPTER_PE4_TIMEOUT) {
high_tmp_cnt++;
pe4_err("[pe40]TA Thermal:%d cnt:%d\n",
TAstatus.temperature, high_tmp_cnt);
} else if (ret == MTK_ADAPTER_PE4_TIMEOUT) {
pe4_err("[pe40]TA adapter_dev_get_status timeout\n");
goto err;
} else
break;
if (high_tmp_cnt >= 3) {
pe4_err("[pe40_err]TA Thermal: %d thd:%d cnt:%d\n",
TAstatus.temperature, 100, high_tmp_cnt);
goto err;
}
}
if (ret == MTK_ADAPTER_PE4_NOT_SUPPORT)
pe4_err("[pe40]TA adapter_dev_get_status not support\n");
else {
if (TAstatus.ocp || TAstatus.otp || TAstatus.ovp) {
pe4_err("[pe40_err]TA protect: ocp:%d otp:%d ovp:%d\n",
TAstatus.ocp,
TAstatus.otp,
TAstatus.ovp);
goto err;
}
pe4_err("PD_TA:TA protect: ocp:%d otp:%d ovp:%d tmp:%d\n",
TAstatus.ocp,
TAstatus.otp,
TAstatus.ovp,
TAstatus.temperature);
}
tmp = pe4_hal_get_battery_temperature(alg);
if (tmp > pe40->high_temp_to_leave_pe40 ||
tmp < pe40->low_temp_to_leave_pe40) {
pe4_err("[pe40_err]tmp:%d threshold:%d %d\n",
tmp, pe40->high_temp_to_leave_pe40,
pe40->low_temp_to_leave_pe40);
return 1;
}
return 0;
err:
return -1;
}
int mtk_pe40_cc_state(struct chg_alg_device *alg)
{
int ibus = 0, vbat, ibat, vbus, compare_ibus = 0;
int icl, ccl, ccl2, cv, max_icl;
struct mtk_pe40 *pe40;
int ret;
int oldavbus = 0;
int oldibus = 0;
int watt;
int max_watt;
// struct charger_data *pdata;
int actual_current;
int new_watt = 0;
int adapter_ibus = 0;
int input_current = 0;
int icl_threshold;
unsigned int mivr1 = 0;
unsigned int mivr2 = 0;
bool chg1_mivr = false;
bool chg2_mivr = false;
bool chg2_enable = false;
bool chg2_chip_enable = false;
bool thermal_skip = false;
pe40 = dev_get_drvdata(&alg->dev);
vbat = pe4_hal_get_vbat(alg);
ibat = pe4_hal_get_ibat(alg);
mtk_pe40_get_ibus(alg, &ibus);
ibus = ibus / 1000;
oldibus = ibus;
pe4_hal_get_mivr_state(alg, CHG1, &chg1_mivr);
pe4_hal_get_mivr(alg, CHG1, &mivr1);
if (alg->config == DUAL_CHARGERS_IN_SERIES) {
chg2_chip_enable = pe4_hal_is_chip_enable(alg, CHG2);
pe4_hal_is_charger_enable(alg, CHG2, &chg2_enable);
if (chg2_chip_enable) {
pe4_hal_get_mivr_state(alg, CHG2, &chg2_mivr);
pe4_hal_get_mivr(alg, CHG2, &mivr2);
}
}
vbus = pe4_hal_get_vbus(alg);
ccl = pe40->charger_current1 / 1000;
ccl2 = pe40->charger_current1 / 1000;
cv = pe40->cv / 1000;
watt = pe40->avbus * ibus;
icl = pe40->input_current1 / 1000 *
(100 - pe40->ibus_err) / 100;
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
if (pinfo->data.parallel_vbus) {
charger_dev_get_ibus(pinfo->chg1_dev, &compare_ibus);
compare_ibus = compare_ibus / 1000;
if (icl > pe40->max_charger_ibus / 2)
max_icl = pe40->max_charger_ibus / 2;
else
max_icl = icl;
} else {
compare_ibus = ibus;
if (icl > pe40->max_charger_ibus)
max_icl = pe40->max_charger_ibus;
else
max_icl = icl;
}
#else
compare_ibus = ibus;
if (icl > pe40->max_charger_ibus)
max_icl = pe40->max_charger_ibus;
else
max_icl = icl;
#endif
icl_threshold = 100;
max_watt = pe40->avbus * max_icl;
pe4_err("[pe40_cc]vbus:%d:%d,ibus:%d,cibus:%d,ibat:%d icl:%d:%d,ccl:%d,%d,vbat:%d,maxIbus:%d,mivr:%d,%d\n",
pe40->avbus, vbus,
ibus,
compare_ibus,
ibat,
icl, max_icl,
ccl, ccl2,
vbat, pe40->max_charger_ibus,
chg1_mivr, chg2_mivr);
if ((chg1_mivr && (vbus < mivr1 / 1000 - 500)) ||
(chg2_mivr && (vbus < mivr2 / 1000 - 500))) {
mtk_pe40_end(alg, 1);
return 0;
}
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
if (pinfo->data.parallel_vbus) {
if (pinfo->chg1_data.thermal_input_current_limit != -1 ||
pinfo->chg2_data.thermal_input_current_limit != -1)
thermal_skip = true;
}
#endif
if (((chg1_mivr || chg2_mivr) && !thermal_skip) ||
((compare_ibus >= (max_icl - icl_threshold)) && !thermal_skip) ||
(compare_ibus <= (max_icl - icl_threshold * 2))) {
oldavbus = pe40->avbus;
if (chg1_mivr || chg2_mivr) {
pe40->avbus = pe40->avbus + 50;
#ifdef PE4_DUAL_CHARGER_IN_PARALLEL
if (pinfo->data.parallel_vbus)
new_watt = (pe40->avbus + 50) * icl * 2;
else
new_watt = (pe40->avbus + 50) * icl;
#else
new_watt = (pe40->avbus + 50) * icl;
#endif
} else if (compare_ibus >= (max_icl - icl_threshold)) {
pe40->avbus = pe40->avbus + 50;
new_watt = (pe40->avbus + 50) * ibus;
} else if (compare_ibus <= (max_icl - icl_threshold * 2)) {
if (chg2_enable && (mivr2 / 1000 < 5000) &&
((vbus - 50) < (mivr2 / 1000 + 100)))
new_watt = watt;
else {
new_watt = pe40->avbus * pe40->ibus - 500000;
pe40->avbus = pe40->avbus - 50;
}
}
ret = mtk_pe40_get_setting_by_watt(alg, &pe40->avbus,
&adapter_ibus, &actual_current, new_watt,
&input_current);
if (ibus >= (max_icl - icl_threshold) && ret != 4)
pe40->polling_interval = 3;
if (pe40->avbus <= 5000)
pe40->avbus = 5000;
if (abs(pe40->avbus - oldavbus) >= 50) {
ret = mtk_pe40_pd_request(alg, &pe40->avbus,
&adapter_ibus, input_current);
if (ret != 0 && ret != MTK_ADAPTER_PE4_REJECT) {
pe4_err("pe4 end2 error1\n");
goto err;
}
}
msleep(100);
vbat = pe4_hal_get_vbat(alg);
ibat = pe4_hal_get_ibat(alg);
mtk_pe40_get_ibus(alg, &ibus);
vbus = pe4_hal_get_vbat(alg);
ibus = ibus / 1000;
icl = pe40->input_current_limit1 / 1000;
ccl = pe40->charger_current1 / 1000;
pe40->watt = pe40->avbus * ibus;
pe40->vbus = vbus;
pe40->ibus = ibus;
} else
pe40->polling_interval = 10;
ret = mtk_pe40_safety_check(alg);
if (ret == -1) {
pe4_err("pe4 end2 error2\n");
goto err;
}
if (ret == 1)
goto disable_hv;
if (pe40->avbus * oldibus <= PE40_MIN_WATT) {
if (pe40->charging_current_limit1 != -1 ||
pe40->input_current_limit1 != -1)
mtk_pe40_end(alg, 1);
else
mtk_pe40_end(alg, 1);
}
return 0;
disable_hv:
mtk_pe40_end(alg, 0);
return 0;
err:
mtk_pe40_end(alg, 2);
return 0;
}
static int pe4_sc_set_charger(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe4;
int ichg1_min = -1, aicr1_min = -1;
int ret;
int min_icl = 0;
pe4 = dev_get_drvdata(&alg->dev);
if (pe4->input_current_limit1 == 0 ||
pe4->charging_current_limit1 == 0) {
pe4_err("input/charging current is 0, end Pd\n");
return -1;
}
mutex_lock(&pe4->data_lock);
if (pe4->charging_current_limit1 != -1) {
if (pe4->charging_current_limit1 <
pe4->sc_charger_current)
pe4->charger_current1 =
pe4->charging_current_limit1;
ret = pe4_hal_get_min_charging_current(alg, CHG1, &ichg1_min);
if (ret != -ENOTSUPP &&
pe4->charging_current_limit1 < ichg1_min)
pe4->charger_current1 = 0;
} else
pe4->charger_current1 = pe4->sc_charger_current;
min_icl = pe4->sc_input_current;
if (pe4->pe4_input_current_limit != -1 &&
pe4->pe4_input_current_limit < min_icl)
min_icl = pe4->pe4_input_current_limit;
if (pe4->pe4_input_current_limit_setting != -1 &&
pe4->pe4_input_current_limit_setting < min_icl)
min_icl = pe4->pe4_input_current_limit_setting;
if (pe4->input_current_limit1 != -1 &&
pe4->input_current_limit1 < min_icl) {
pe4->input_current1 = pe4->input_current_limit1;
ret = pe4_hal_get_min_input_current(alg, CHG1, &aicr1_min);
if (ret != -ENOTSUPP && pe4->input_current_limit1 < aicr1_min)
pe4->input_current1 = 0;
} else
pe4->input_current1 = min_icl;
mutex_unlock(&pe4->data_lock);
if (pe4->input_current1 == 0 ||
pe4->charger_current1 == 0) {
pe4_err("current is zero %d %d\n",
pe4->input_current1,
pe4->charger_current1);
return -1;
}
pe4_hal_set_charging_current(alg,
CHG1, pe4->charger_current1);
pe4_hal_set_input_current(alg,
CHG1, pe4->input_current1);
pe4_hal_set_cv(alg,
CHG1, pe4->cv);
pe4_dbg("%s m:%d s:%d cv:%d chg1:%d,%d min:%d:%d\n", __func__,
alg->config,
pe4->state,
pe4->cv,
pe4->input_current1,
pe4->charger_current1,
ichg1_min,
aicr1_min);
return 0;
}
static int pe4_dcs_set_charger(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe4;
bool chg2_chip_enabled = false;
int ret;
int ichg1_min = -1, ichg2_min = -1;
int aicr1_min = -1;
int min_icl;
pe4 = dev_get_drvdata(&alg->dev);
if (pe4->input_current_limit1 == 0 ||
pe4->charging_current_limit1 == 0 ||
pe4->charging_current_limit2 == 0) {
pr_notice("input/charging current is 0, end PD\n");
return -1;
}
mutex_lock(&pe4->data_lock);
min_icl = pe4->dcs_input_current;
if (pe4->pe4_input_current_limit != -1 &&
pe4->pe4_input_current_limit < min_icl)
min_icl = pe4->pe4_input_current_limit;
if (pe4->pe4_input_current_limit_setting != -1 &&
pe4->pe4_input_current_limit_setting < min_icl)
min_icl = pe4->pe4_input_current_limit_setting;
if (pe4->input_current_limit1 != -1 &&
pe4->input_current_limit1 < min_icl) {
pe4->input_current1 = pe4->input_current_limit1;
ret = pe4_hal_get_min_input_current(alg, CHG1, &aicr1_min);
if (ret != -ENOTSUPP && pe4->input_current_limit1 < aicr1_min)
pe4->input_current1 = 0;
} else
pe4->input_current1 = min_icl;
if (pe4->charging_current_limit1 != -1 &&
pe4->charging_current_limit1 <
pe4->dcs_chg1_charger_current) {
pe4->charger_current1 = pe4->charging_current_limit1;
ret = pe4_hal_get_min_charging_current(alg, CHG1, &ichg1_min);
if (ret != -ENOTSUPP &&
pe4->charging_current_limit1 < ichg1_min)
pe4->charger_current1 = 0;
} else
pe4->charger_current1 = pe4->dcs_chg1_charger_current;
if (pe4->state == PE4_RUN)
pe4->charger_current2 = pe4->dcs_chg2_charger_current;
if (pe4->charging_current_limit2 != -1 &&
pe4->charging_current_limit2 <
pe4->charger_current2) {
pe4->charger_current2 = pe4->charging_current_limit2;
ret = pe4_hal_get_min_charging_current(alg, CHG2, &ichg1_min);
if (ret != -ENOTSUPP &&
pe4->charging_current_limit2 < ichg1_min)
pe4->charger_current2 = 0;
}
mutex_unlock(&pe4->data_lock);
if (pe4->input_current1 == 0 ||
pe4->charger_current1 == 0 ||
pe4->charger_current2 == 0) {
pe4_err("current is zero %d %d %d\n",
pe4->input_current1,
pe4->charger_current1,
pe4->charger_current2);
pe4_hal_enable_charger(alg, CHG2, false);
pe4_hal_charger_enable_chip(alg, CHG2, false);
return -1;
}
chg2_chip_enabled = pe4_hal_is_chip_enable(alg, CHG2);
pe4_err("chg2_en:%d pe4_state:%d\n",
chg2_chip_enabled, pe4->state);
if (pe4->state == PE4_RUN) {
if (!chg2_chip_enabled)
pe4_hal_charger_enable_chip(alg, CHG2, true);
pe4_hal_enable_charger(alg, CHG2, true);
pe4_hal_set_cv(alg, CHG2, pe4->cv + 200000);
pe4_hal_set_input_current(alg,
CHG2, pe4->charger_current2);
pe4_hal_set_charging_current(alg,
CHG2, pe4->charger_current2);
pe4_hal_set_eoc_current(alg, CHG1,
pe4->dual_polling_ieoc);
pe4_hal_enable_termination(alg, CHG1, false);
pe4_hal_safety_check(alg, pe4->dual_polling_ieoc);
} else if (pe4->state == PE4_TUNING) {
if (!chg2_chip_enabled)
pe4_hal_charger_enable_chip(alg, CHG2, true);
pe4_hal_enable_charger(alg, CHG2, true);
pe4_hal_set_eoc_current(alg, CHG1, pe4->dual_polling_ieoc);
pe4_hal_enable_termination(alg, CHG1, false);
pe4_hal_safety_check(alg, pe4->dual_polling_ieoc);
} else if (pe4->state == PE4_POSTCC) {
pe4_hal_set_eoc_current(alg, CHG1, 150000);
pe4_hal_reset_eoc_state(alg);
pe4_hal_enable_termination(alg, CHG1, true);
} else {
pe4_err("%s state error!", __func__);
return -1;
}
pe4_hal_set_charging_current(alg,
CHG1, pe4->charger_current1);
pe4_hal_set_input_current(alg,
CHG1, pe4->input_current1);
pe4_hal_set_cv(alg,
CHG1, pe4->cv);
pe4_dbg("%s m:%d s:%d cv:%d chg1:%d,%d chg2:%d,%d chg2en:%d min:%d,%d,%d\n",
__func__,
alg->config,
pe4->state,
pe4->cv,
pe4->input_current1,
pe4->charger_current1,
pe4->input_current2,
pe4->charger_current2,
chg2_chip_enabled,
ichg1_min,
ichg2_min,
aicr1_min);
return 0;
}
static void _pe4_set_current(struct chg_alg_device *alg)
{
int ret_value;
if (alg->config == DUAL_CHARGERS_IN_SERIES) {
if (pe4_dcs_set_charger(alg) != 0) {
ret_value = ALG_DONE;
//goto out;
}
} else {
if (pe4_sc_set_charger(alg) != 0) {
ret_value = ALG_DONE;
//goto out;
}
}
}
static int _pe4_start_algo(struct chg_alg_device *alg)
{
int ret = 0, ret_value = 0;
struct mtk_pe40 *pe4;
bool again;
int uisoc, tmp;
pe4 = dev_get_drvdata(&alg->dev);
mutex_lock(&pe4->access_lock);
__pm_stay_awake(pe4->suspend_lock);
do {
pe4_info("%s state:%d %s %d\n", __func__,
pe4->state,
pe4_state_to_str(pe4->state),
again);
again = false;
switch (pe4->state) {
case PE4_HW_UNINIT:
case PE4_HW_FAIL:
ret_value = ALG_INIT_FAIL;
break;
case PE4_HW_READY:
uisoc = pe4_hal_get_uisoc(alg);
ret = pe4_hal_is_pd_adapter_ready(alg);
ret_value = ret;
if (ret == ALG_READY) {
uisoc = pe4_hal_get_uisoc(alg);
tmp = pe4_hal_get_battery_temperature(alg);
if (pe4->input_current_limit1 != -1 ||
pe4->charging_current_limit1 != -1 ||
pe4->input_current_limit2 != -1 ||
pe4->charging_current_limit2 != -1 ||
uisoc > pe4->pe40_stop_battery_soc ||
uisoc == -1 ||
tmp > pe4->high_temp_to_enter_pe40 ||
tmp < pe4->low_temp_to_enter_pe40) {
ret_value = ALG_NOT_READY;
pe4_info("%d %d %d %d %d\n",
pe4->input_current_limit1,
pe4->charging_current_limit1,
pe4->pe40_stop_battery_soc,
pe4->high_temp_to_enter_pe40,
pe4->low_temp_to_enter_pe40);
} else {
again = true;
pe4->state = PE4_INIT;
}
} else if (ret == ALG_TA_NOT_SUPPORT)
pe4->state = PE4_TA_NOT_SUPPORT;
break;
case PE4_TA_NOT_SUPPORT:
ret_value = ALG_TA_NOT_SUPPORT;
break;
case PE4_INIT:
pe4_hal_set_charging_current(alg,
CHG1, pe4->charger_current1);
mtk_pe40_init_state(alg);
again = true;
break;
case PE4_RUN:
case PE4_TUNING:
case PE4_POSTCC:
pe4_hal_set_charging_current(alg,
CHG1, pe4->charger_current1);
_pe4_set_current(alg);
mtk_pe40_cc_state(alg);
break;
default:
pe4_err("PE4 unknown state:%d\n", pe4->state);
ret_value = ALG_INIT_FAIL;
break;
}
} while (again == true);
__pm_relax(pe4->suspend_lock);
mutex_unlock(&pe4->access_lock);
return ret_value;
}
static bool _pe4_is_algo_running(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe4;
pe4_dbg("%s\n", __func__);
pe4 = dev_get_drvdata(&alg->dev);
if (pe4->state == PE4_RUN || pe4->state == PE4_INIT ||
pe4->state == PE4_TUNING || pe4->state == PE4_POSTCC)
return true;
return false;
}
static int _pe4_stop_algo(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe4;
pe4 = dev_get_drvdata(&alg->dev);
pe4_dbg("%s %d\n", __func__, pe4->state);
if (pe4->state == PE4_RUN || pe4->state == PE4_INIT ||
pe4->state == PE4_TUNING || pe4->state == PE4_POSTCC)
mtk_pe40_end(alg, 0);
return 0;
}
static int pe4_plugout_reset(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe4;
pe4 = dev_get_drvdata(&alg->dev);
switch (pe4->state) {
case PE4_HW_UNINIT:
case PE4_HW_FAIL:
case PE4_HW_READY:
break;
case PE4_TA_NOT_SUPPORT:
pe4->state = PE4_HW_READY;
break;
case PE4_INIT:
case PE4_RUN:
case PE4_TUNING:
case PE4_POSTCC:
mtk_pe40_end(alg, 3);
break;
default:
break;
}
return 0;
}
static int pe4_full_evt(struct chg_alg_device *alg)
{
struct mtk_pe40 *pe4;
int ret = 0;
bool chg_en, chg2_enabled = false;
int ichg2, ichg2_min;
int ret_value;
pe4 = dev_get_drvdata(&alg->dev);
switch (pe4->state) {
case PE4_HW_UNINIT:
case PE4_HW_FAIL:
case PE4_HW_READY:
case PE4_TA_NOT_SUPPORT:
case PE4_INIT:
break;
case PE4_RUN:
case PE4_TUNING:
case PE4_POSTCC:
if (alg->config == DUAL_CHARGERS_IN_SERIES) {
pe4_hal_is_charger_enable(
alg, CHG2, &chg_en);
chg2_enabled = pe4_hal_is_chip_enable(alg, CHG2);
if (!chg_en || !chg2_enabled) {
/* notify eoc , fix me */
pe4->state = PE4_HW_READY;
pe4_err("%s: charging done:%d %d\n",
__func__, chg_en, chg2_enabled);
if (alg->is_polling_mode == false)
ret_value = 1;
} else {
pe4_hal_get_charging_current(alg, CHG2, &ichg2);
ret = pe4_hal_get_min_charging_current(
alg, CHG2, &ichg2_min);
if (ret == -ENOTSUPP)
ichg2_min = 100000;
pe4_err("ichg2:%d, ichg2_min:%d state:%d\n",
ichg2, ichg2_min, pe4->state);
if (ichg2 - 500000 <= ichg2_min) {
pe4->state = PE4_POSTCC;
pe4_hal_enable_charger(alg,
CHG2, false);
pe4_hal_set_eoc_current(alg,
CHG1, 150000);
pe4_hal_reset_eoc_state(alg);
pe4_hal_enable_termination(alg,
CHG1, true);
} else {
pe4->state = PE4_TUNING;
mutex_lock(&pe4->data_lock);
if (pe4->charger_current2 >= 500000)
pe4->charger_current2 =
ichg2 - 500000;
pe4_hal_set_charging_current(alg,
CHG2, pe4->charger_current2);
mutex_unlock(&pe4->data_lock);
}
ret_value = 1;
}
} else {
if (pe4->state == PE4_RUN) {
pe4_err("%s evt full\n", __func__);
pe4->state = PE4_HW_READY;
}
}
break;
default:
ret_value = ALG_INIT_FAIL;
break;
}
return ret_value;
}
static int _pe4_notifier_call(struct chg_alg_device *alg,
struct chg_alg_notify *notify)
{
struct mtk_pe40 *pe4;
int ret_value;
pe4 = dev_get_drvdata(&alg->dev);
pe4_err("%s evt:%d, state:%s\n", __func__, notify->evt,
pe4_state_to_str(pe4->state));
switch (notify->evt) {
case EVT_PLUG_OUT:
ret_value = pe4_plugout_reset(alg);
break;
case EVT_FULL:
ret_value = pe4_full_evt(alg);
break;
default:
ret_value = -EINVAL;
}
return ret_value;
}
static void mtk_pe4_parse_dt(struct mtk_pe40 *pe4,
struct device *dev)
{
struct device_node *np = dev->of_node;
u32 val;
if (of_property_read_u32(np, "pe40_max_vbus", &val) >= 0)
pe4->pe40_max_vbus = val;
else {
pe4_err("use default pe40_max_vbus:%d\n", PE40_MAX_VBUS);
pe4->pe40_max_vbus = PE40_MAX_VBUS;
}
if (of_property_read_u32(np, "pe40_max_ibus", &val) >= 0)
pe4->pe40_max_ibus = val;
else {
pe4_err("use default pe40_max_ibus:%d\n", PE40_MAX_IBUS);
pe4->pe40_max_ibus = PE40_MAX_IBUS;
}
if (of_property_read_u32(np, "min_charger_voltage", &val) >= 0)
pe4->min_charger_voltage = val;
else {
pe4_err("use default V_CHARGER_MIN:%d\n", V_CHARGER_MIN);
pe4->min_charger_voltage = V_CHARGER_MIN;
}
if (of_property_read_u32(np, "pe40_stop_battery_soc", &val) >= 0)
pe4->pe40_stop_battery_soc = val;
else {
pe4_err("use default pe40_stop_battery_soc:%d\n", 80);
pe4->pe40_stop_battery_soc = 80;
}
if (of_property_read_u32(np, "high_temp_to_leave_pe40", &val) >= 0) {
pe4->high_temp_to_leave_pe40 = val;
} else {
pe4_err("use default high_temp_to_leave_pe40:%d\n",
HIGH_TEMP_TO_LEAVE_PE40);
pe4->high_temp_to_leave_pe40 = HIGH_TEMP_TO_LEAVE_PE40;
}
if (of_property_read_u32(np, "high_temp_to_enter_pe40", &val) >= 0) {
pe4->high_temp_to_enter_pe40 = val;
} else {
pe4_err("use default high_temp_to_enter_pe40:%d\n",
HIGH_TEMP_TO_ENTER_PE40);
pe4->high_temp_to_enter_pe40 = HIGH_TEMP_TO_ENTER_PE40;
}
if (of_property_read_u32(np, "low_temp_to_leave_pe40", &val) >= 0) {
pe4->low_temp_to_leave_pe40 = val;
} else {
pe4_err("use default low_temp_to_leave_pe40:%d\n",
LOW_TEMP_TO_LEAVE_PE40);
pe4->low_temp_to_leave_pe40 = LOW_TEMP_TO_LEAVE_PE40;
}
if (of_property_read_u32(np, "low_temp_to_enter_pe40", &val) >= 0) {
pe4->low_temp_to_enter_pe40 = val;
} else {
pe4_err("use default low_temp_to_enter_pe40:%d\n",
LOW_TEMP_TO_ENTER_PE40);
pe4->low_temp_to_enter_pe40 = LOW_TEMP_TO_ENTER_PE40;
}
if (of_property_read_u32(np, "ibus_err", &val) >= 0) {
pe4->ibus_err = val;
} else {
pe4_err("use default ibus_err:%d\n",
IBUS_ERR);
pe4->ibus_err = IBUS_ERR;
}
if (of_property_read_u32(np, "pe40_r_cable_1a_lower", &val) >= 0)
pe4->pe40_r_cable_1a_lower = val;
else {
pe4_err("use default pe40_r_cable_1a_lower:%d\n", 530);
pe4->pe40_r_cable_1a_lower = 530;
}
if (of_property_read_u32(np, "pe40_r_cable_2a_lower", &val) >= 0)
pe4->pe40_r_cable_2a_lower = val;
else {
pe4_err("use default pe40_r_cable_2a_lower:%d\n", 390);
pe4->pe40_r_cable_2a_lower = 390;
}
if (of_property_read_u32(np, "pe40_r_cable_3a_lower", &val) >= 0)
pe4->pe40_r_cable_3a_lower = val;
else {
pe4_err("use default pe40_r_cable_3a_lower:%d\n", 252);
pe4->pe40_r_cable_3a_lower = 252;
}
/* single charger */
if (of_property_read_u32(np, "sc_input_current", &val)
>= 0) {
pe4->sc_input_current = val;
} else {
pe4_err("use default sc_input_current:%d\n", 3000000);
pe4->sc_input_current = 3000000;
}
if (of_property_read_u32(np, "sc_charger_current", &val)
>= 0) {
pe4->sc_charger_current = val;
} else {
pe4_err("use default sc_charger_current:%d\n", 3000000);
pe4->sc_charger_current = 3000000;
}
/* dual charger in series*/
if (of_property_read_u32(np, "dcs_input_current", &val)
>= 0) {
pe4->dcs_input_current = val;
} else {
pe4_err("use default dcs_input_current:%d\n", 3000000);
pe4->dcs_input_current = 3000000;
}
if (of_property_read_u32(np, "dcs_chg1_charger_current", &val)
>= 0) {
pe4->dcs_chg1_charger_current = val;
} else {
pe4_err("use default dcs_chg1_charger_current:%d\n", 1500000);
pe4->dcs_chg1_charger_current = 1500000;
}
if (of_property_read_u32(np, "dcs_chg2_charger_current", &val)
>= 0) {
pe4->dcs_chg2_charger_current = val;
} else {
pe4_err("use default dcs_chg2_charger_current:%d\n", 1500000);
pe4->dcs_chg2_charger_current = 1500000;
}
if (of_property_read_u32(np, "dual_polling_ieoc", &val) >= 0)
pe4->dual_polling_ieoc = val;
else {
pr_notice("use default dual_polling_ieoc :%d\n", 750000);
pe4->dual_polling_ieoc = 750000;
}
if (of_property_read_u32(np, "slave_mivr_diff", &val) >= 0)
pe4->slave_mivr_diff = val;
else {
pr_notice("use default slave_mivr_diff:%d\n",
PE4_SLAVE_MIVR_DIFF);
pe4->slave_mivr_diff = PE4_SLAVE_MIVR_DIFF;
}
}
int _pe4_get_status(struct chg_alg_device *alg,
enum chg_alg_props s, int *value)
{
pr_notice("%s\n", __func__);
if (s == ALG_MAX_VBUS)
*value = 10000;
else
pr_notice("%s does not support prop:%d\n", __func__, s);
return 0;
}
int _pe4_set_setting(struct chg_alg_device *alg_dev,
struct chg_limit_setting *setting)
{
struct mtk_pe40 *pe4;
pe4 = dev_get_drvdata(&alg_dev->dev);
pe4_dbg("%s cv:%d icl:%d,%d cc:%d,%d\n",
__func__,
setting->cv,
setting->input_current_limit1,
setting->input_current_limit2,
setting->charging_current_limit1,
setting->charging_current_limit2);
mutex_lock(&pe4->access_lock);
__pm_stay_awake(pe4->suspend_lock);
pe4->cv = setting->cv;
pe4->input_current_limit1 = setting->input_current_limit1;
pe4->input_current_limit2 = setting->input_current_limit2;
pe4->charging_current_limit1 = setting->charging_current_limit1;
pe4->charging_current_limit2 = setting->charging_current_limit2;
pe4_dbg("%s cv:%d icl1:%d:%d icl2:%d:%d icl:%d:%d cc:%d:%d\n",
__func__,
setting->cv,
pe4->input_current1,
pe4->input_current_limit2,
pe4->input_current2,
pe4->input_current_limit2,
pe4->pe4_input_current_limit,
pe4->pe4_input_current_limit_setting,
pe4->charger_current1,
pe4->charger_current2);
__pm_relax(pe4->suspend_lock);
mutex_unlock(&pe4->access_lock);
return 0;
}
int _pe4_set_prop(struct chg_alg_device *alg,
enum chg_alg_props s, int value)
{
pr_notice("%s %d %d\n", __func__, s, value);
return 0;
}
static struct chg_alg_ops pe4_alg_ops = {
.init_algo = _pe4_init_algo,
.is_algo_ready = _pe4_is_algo_ready,
.start_algo = _pe4_start_algo,
.is_algo_running = _pe4_is_algo_running,
.stop_algo = _pe4_stop_algo,
.notifier_call = _pe4_notifier_call,
.get_prop = _pe4_get_status,
.set_prop = _pe4_set_prop,
.set_current_limit = _pe4_set_setting,
};
static int mtk_pe4_probe(struct platform_device *pdev)
{
struct mtk_pe40 *pe4 = NULL;
pr_notice("%s: starts\n", __func__);
pe4 = devm_kzalloc(&pdev->dev, sizeof(*pe4), GFP_KERNEL);
if (!pe4)
return -ENOMEM;
platform_set_drvdata(pdev, pe4);
pe4->pdev = pdev;
mutex_init(&pe4->access_lock);
mutex_init(&pe4->data_lock);
pe4->suspend_lock =
wakeup_source_register(NULL, "PE4.0 suspend wakelock");
mtk_pe4_parse_dt(pe4, &pdev->dev);
pe4->bat_psy = devm_power_supply_get_by_phandle(&pdev->dev, "gauge");
if (IS_ERR_OR_NULL(pe4->bat_psy))
pe4_err("%s: devm power fail to get pe4->bat_psy\n", __func__);
pe4->alg = chg_alg_device_register("pe4", &pdev->dev,
pe4, &pe4_alg_ops, NULL);
return 0;
}
static int mtk_pe4_remove(struct platform_device *dev)
{
return 0;
}
static void mtk_pe4_shutdown(struct platform_device *dev)
{
}
static const struct of_device_id mtk_pe4_of_match[] = {
{.compatible = "mediatek,charger,pe4",},
{},
};
MODULE_DEVICE_TABLE(of, mtk_pe4_of_match);
struct platform_device pe4_device = {
.name = "pe4",
.id = -1,
};
static struct platform_driver pe4_driver = {
.probe = mtk_pe4_probe,
.remove = mtk_pe4_remove,
.shutdown = mtk_pe4_shutdown,
.driver = {
.name = "pe4",
.of_match_table = mtk_pe4_of_match,
},
};
static int __init mtk_pe4_init(void)
{
return platform_driver_register(&pe4_driver);
}
late_initcall(mtk_pe4_init);
static void __exit mtk_pe4_exit(void)
{
platform_driver_unregister(&pe4_driver);
}
module_exit(mtk_pe4_exit);
MODULE_AUTHOR("wy.chuang <wy.chuang@mediatek.com>");
MODULE_DESCRIPTION("MTK Pump Express 4 algorithm Driver");
MODULE_LICENSE("GPL");
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