419 lines
8.6 KiB
C
419 lines
8.6 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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/*
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*
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* Filename:
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* ---------
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* mtk_charger.c
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*
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* Project:
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* --------
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* Android_Software
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*
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* Description:
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* ------------
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* This Module defines functions of Battery charging
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*
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* Author:
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* -------
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* Wy Chuang
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*
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*/
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#include <linux/init.h> /* For init/exit macros */
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#include <linux/module.h> /* For MODULE_ marcros */
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#include <linux/fs.h>
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#include <linux/device.h>
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#include <linux/interrupt.h>
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#include <linux/spinlock.h>
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#include <linux/platform_device.h>
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#include <linux/device.h>
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#include <linux/kdev_t.h>
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#include <linux/fs.h>
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#include <linux/cdev.h>
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#include <linux/delay.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/wait.h>
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#include <linux/slab.h>
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#include <linux/fs.h>
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#include <linux/sched.h>
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#include <linux/poll.h>
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#include <linux/power_supply.h>
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#include <linux/pm_wakeup.h>
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#include <linux/time.h>
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#include <linux/mutex.h>
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#include <linux/kthread.h>
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#include <linux/proc_fs.h>
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#include <linux/platform_device.h>
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#include <linux/seq_file.h>
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#include <linux/scatterlist.h>
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#include <linux/suspend.h>
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#include <linux/of.h>
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#include <linux/of_irq.h>
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#include <linux/of_address.h>
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#include <linux/reboot.h>
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/* necessary header */
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#include "mtk_pe.h"
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#include "charger_class.h"
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/* dependent on platform */
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#include "mtk_charger.h"
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struct pe_hal {
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struct charger_device *chg1_dev;
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struct charger_device *chg2_dev;
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};
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int pe_hal_init_hardware(struct chg_alg_device *alg)
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{
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struct mtk_pe *pe;
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struct pe_hal *hal;
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pr_notice("%s\n", __func__);
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if (alg == NULL) {
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pr_notice("%s: alg is null\n", __func__);
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return -EINVAL;
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}
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pe = dev_get_drvdata(&alg->dev);
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hal = chg_alg_dev_get_drv_hal_data(alg);
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if (hal == NULL) {
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hal = devm_kzalloc(&pe->pdev->dev, sizeof(*hal), GFP_KERNEL);
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if (!hal)
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return -ENOMEM;
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chg_alg_dev_set_drv_hal_data(alg, hal);
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}
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hal->chg1_dev = get_charger_by_name("primary_chg");
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if (hal->chg1_dev)
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pr_notice("%s: Found primary charger\n", __func__);
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else {
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pr_notice("%s: Error : can't find primary charger\n",
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__func__);
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return -ENODEV;
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}
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return 0;
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}
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static int get_pmic_vbus(int *vchr)
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{
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union power_supply_propval prop;
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static struct power_supply *chg_psy;
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int ret;
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if (chg_psy == NULL)
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chg_psy = power_supply_get_by_name("mtk_charger_type");
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if (chg_psy == NULL || IS_ERR(chg_psy)) {
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pr_notice("%s Couldn't get chg_psy\n", __func__);
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ret = -1;
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} else {
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ret = power_supply_get_property(chg_psy,
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POWER_SUPPLY_PROP_VOLTAGE_NOW, &prop);
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}
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*vchr = prop.intval * 1000;
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pr_notice("%s vbus:%d\n", __func__,
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prop.intval);
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return ret;
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}
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/* Unit of the following functions are uV, uA */
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int pe_hal_get_vbus(struct chg_alg_device *alg)
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{
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int ret = 0;
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int vchr = 0;
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struct pe_hal *hal;
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if (alg == NULL)
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return -EINVAL;
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hal = chg_alg_dev_get_drv_hal_data(alg);
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ret = charger_dev_get_vbus(hal->chg1_dev, &vchr);
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if (ret < 0) {
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ret = get_pmic_vbus(&vchr);
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if (ret < 0)
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pr_notice("%s: get vbus failed: %d\n", __func__, ret);
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}
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return vchr;
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}
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int pe_hal_get_ibat(struct chg_alg_device *alg)
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{
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union power_supply_propval prop;
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struct power_supply *bat_psy = NULL;
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int ret;
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struct mtk_pe *pe;
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if (alg == NULL)
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return -EINVAL;
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pe = dev_get_drvdata(&alg->dev);
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bat_psy = pe->bat_psy;
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if (bat_psy == NULL || IS_ERR(bat_psy)) {
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pr_notice("%s retry to get pe->bat_psy\n", __func__);
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bat_psy = devm_power_supply_get_by_phandle(&pe->pdev->dev, "gauge");
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pe->bat_psy = bat_psy;
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}
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if (bat_psy == NULL || IS_ERR(bat_psy)) {
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pr_notice("%s Couldn't get bat_psy\n", __func__);
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ret = 0;
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} else {
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ret = power_supply_get_property(bat_psy,
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POWER_SUPPLY_PROP_CURRENT_NOW, &prop);
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ret = prop.intval;
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}
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pr_debug("%s:%d\n", __func__,
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ret);
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return ret;
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}
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int pe_hal_get_charging_current(struct chg_alg_device *alg,
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enum chg_idx chgidx, u32 *ua)
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{
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struct pe_hal *hal;
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if (alg == NULL)
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return -EINVAL;
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hal = chg_alg_dev_get_drv_hal_data(alg);
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if (chgidx == CHG1 && hal->chg1_dev != NULL)
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charger_dev_get_charging_current(hal->chg1_dev, ua);
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else if (chgidx == CHG2 && hal->chg2_dev != NULL)
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charger_dev_get_charging_current(hal->chg2_dev, ua);
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pr_notice("%s idx:%d %d\n", __func__, chgidx, ua);
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return 0;
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}
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/* Enable/Disable HW & SW VBUS OVP */
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int pe_hal_enable_vbus_ovp(struct chg_alg_device *alg, bool enable)
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{
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mtk_chg_enable_vbus_ovp(enable);
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return 0;
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}
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int pe_hal_enable_charging(struct chg_alg_device *alg, bool enable)
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{
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int ret = 0;
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struct pe_hal *hal;
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if (alg == NULL)
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return -EINVAL;
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hal = chg_alg_dev_get_drv_hal_data(alg);
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ret = charger_dev_enable(hal->chg1_dev, enable);
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if (ret < 0)
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chr_err("%s: failed, ret = %d\n", __func__, ret);
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return ret;
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}
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int pe_hal_set_mivr(struct chg_alg_device *alg, enum chg_idx chgidx, int uV)
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{
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int ret = 0;
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struct mtk_pe *pe;
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struct pe_hal *hal;
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if (alg == NULL)
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return -EINVAL;
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pe = dev_get_drvdata(&alg->dev);
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hal = chg_alg_dev_get_drv_hal_data(alg);
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ret = charger_dev_set_mivr(hal->chg1_dev, uV);
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if (ret < 0)
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pr_notice("%s: failed, ret = %d\n", __func__, ret);
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return ret;
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}
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int pe_hal_get_uisoc(struct chg_alg_device *alg)
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{
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union power_supply_propval prop;
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struct power_supply *bat_psy = NULL;
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int ret;
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struct mtk_pe *pe;
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if (alg == NULL)
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return -EINVAL;
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pe = dev_get_drvdata(&alg->dev);
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bat_psy = pe->bat_psy;
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if (bat_psy == NULL || IS_ERR(bat_psy)) {
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pr_notice("%s retry to get pe->bat_psy\n", __func__);
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bat_psy = devm_power_supply_get_by_phandle(&pe->pdev->dev, "gauge");
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pe->bat_psy = bat_psy;
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}
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if (bat_psy == NULL || IS_ERR(bat_psy)) {
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pr_notice("%s Couldn't get bat_psy\n", __func__);
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ret = 50;
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} else {
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ret = power_supply_get_property(bat_psy,
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POWER_SUPPLY_PROP_CAPACITY, &prop);
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ret = prop.intval;
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}
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pr_notice("%s:%d\n", __func__,
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ret);
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return ret;
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}
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int pe_hal_get_charger_type(struct chg_alg_device *alg)
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{
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struct mtk_charger *info = NULL;
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struct power_supply *chg_psy = NULL;
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int ret = 0;
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if (alg == NULL)
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return -EINVAL;
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chg_psy = power_supply_get_by_name("mtk-master-charger");
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if (chg_psy == NULL || IS_ERR(chg_psy)) {
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pr_notice("%s Couldn't get chg_psy\n", __func__);
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return -EINVAL;
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} else {
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info = (struct mtk_charger *)power_supply_get_drvdata(chg_psy);
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if (info == NULL)
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return -EINVAL;
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ret = info->chr_type;
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}
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pr_notice("%s type:%d\n", __func__, ret);
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return info->chr_type;
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}
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int pe_hal_send_ta_current_pattern(struct chg_alg_device *alg,
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bool increase)
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{
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struct pe_hal *hal;
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if (alg == NULL)
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return -EINVAL;
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hal = chg_alg_dev_get_drv_hal_data(alg);
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return charger_dev_send_ta_current_pattern(hal->chg1_dev,
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increase);
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}
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int pe_hal_get_charger_cnt(struct chg_alg_device *alg)
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{
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struct pe_hal *hal;
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int cnt = 0;
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if (alg == NULL)
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return -EINVAL;
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hal = chg_alg_dev_get_drv_hal_data(alg);
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if (hal->chg1_dev != NULL)
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cnt++;
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if (hal->chg2_dev != NULL)
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cnt++;
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return cnt;
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}
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bool pe_hal_is_chip_enable(struct chg_alg_device *alg, enum chg_idx chgidx)
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{
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struct pe_hal *hal;
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bool is_chip_enable = false;
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if (alg == NULL)
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return -EINVAL;
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hal = chg_alg_dev_get_drv_hal_data(alg);
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if (chgidx == CHG1)
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charger_dev_is_chip_enabled(hal->chg1_dev,
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&is_chip_enable);
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else if (chgidx == CHG2)
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charger_dev_is_chip_enabled(hal->chg2_dev,
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&is_chip_enable);
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return is_chip_enable;
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}
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int pe_hal_enable_chip(struct chg_alg_device *alg, enum chg_idx chgidx, bool en)
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{
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struct pe_hal *hal;
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if (alg == NULL)
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return -EINVAL;
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hal = chg_alg_dev_get_drv_hal_data(alg);
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if (chgidx == CHG1)
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charger_dev_enable_chip(hal->chg1_dev, en);
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else if (chgidx == CHG2)
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charger_dev_enable_chip(hal->chg2_dev, en);
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return 0;
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}
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int pe_hal_reset_ta(struct chg_alg_device *alg, enum chg_idx chgidx)
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{
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struct pe_hal *hal;
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int ret;
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if (alg == NULL)
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return -EINVAL;
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hal = chg_alg_dev_get_drv_hal_data(alg);
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ret = charger_dev_reset_ta(hal->chg1_dev);
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if (ret != 0)
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return -1;
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return 0;
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}
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int pe_hal_set_cv(struct chg_alg_device *alg,
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enum chg_idx chgidx, u32 uv)
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{
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struct pe_hal *hal;
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|
if (alg == NULL)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
hal = chg_alg_dev_get_drv_hal_data(alg);
|
||
|
|
charger_dev_set_constant_voltage(hal->chg1_dev,
|
||
|
|
uv);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int pe_hal_set_charging_current(struct chg_alg_device *alg,
|
||
|
|
enum chg_idx chgidx, u32 ua)
|
||
|
|
{
|
||
|
|
struct pe_hal *hal;
|
||
|
|
|
||
|
|
if (alg == NULL)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
hal = chg_alg_dev_get_drv_hal_data(alg);
|
||
|
|
charger_dev_set_charging_current(hal->chg1_dev, ua);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int pe_hal_set_input_current(struct chg_alg_device *alg,
|
||
|
|
enum chg_idx chgidx, u32 ua)
|
||
|
|
{
|
||
|
|
struct pe_hal *hal;
|
||
|
|
|
||
|
|
if (alg == NULL)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
hal = chg_alg_dev_get_drv_hal_data(alg);
|
||
|
|
charger_dev_set_input_current(hal->chg1_dev, ua);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|