LXR uboot/drivers/power/battery/bat

   1/*
   2 *  Copyright (C) 2012 Samsung Electronics
   3 *  Lukasz Majewski <l.majewski@samsung.com>
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <power/pmic.h>
  10#include <power/battery.h>
  11#include <power/max8997_pmic.h>
  12#include <errno.h>
  13
  14static struct battery battery_trats;
  15
  16static int power_battery_charge(struct pmic *bat)
  17{
  18        struct power_battery *p_bat = bat->pbat;
  19        struct battery *battery = p_bat->bat;
  20        int k;
  21
  22        if (bat->chrg->chrg_state(p_bat->chrg, PMIC_CHARGER_ENABLE, 450))
  23                return -1;
  24
  25        for (k = 0; bat->chrg->chrg_bat_present(p_bat->chrg) &&
  26                     bat->chrg->chrg_type(p_bat->muic) &&
  27                     battery->state_of_chrg < 100; k++) {
  28                udelay(2000000);
  29                if (!(k % 5))
  30                        puts(".");
  31                bat->fg->fg_battery_update(p_bat->fg, bat);
  32
  33                if (k == 200) {
  34                        debug(" %d [V]", battery->voltage_uV);
  35                        puts("\n");
  36                        k = 0;
  37                }
  38
  39                if (ctrlc()) {
  40                        printf("\nCharging disabled on request.\n");
  41                        goto exit;
  42                }
  43        }
  44 exit:
  45        bat->chrg->chrg_state(p_bat->chrg, PMIC_CHARGER_DISABLE, 0);
  46
  47        return 0;
  48}
  49
  50static int power_battery_init_trats(struct pmic *bat_,
  51                                    struct pmic *fg_,
  52                                    struct pmic *chrg_,
  53                                    struct pmic *muic_)
  54{
  55        bat_->pbat->fg = fg_;
  56        bat_->pbat->chrg = chrg_;
  57        bat_->pbat->muic = muic_;
  58
  59        bat_->fg = fg_->fg;
  60        bat_->chrg = chrg_->chrg;
  61        bat_->chrg->chrg_type = muic_->chrg->chrg_type;
  62        return 0;
  63}
  64
  65static struct power_battery power_bat_trats = {
  66        .bat = &battery_trats,
  67        .battery_init = power_battery_init_trats,
  68        .battery_charge = power_battery_charge,
  69};
  70
  71int power_bat_init(unsigned char bus)
  72{
  73        static const char name[] = "BAT_TRATS";
  74        struct pmic *p = pmic_alloc();
  75
  76        if (!p) {
  77                printf("%s: POWER allocation error!\n", __func__);
  78                return -ENOMEM;
  79        }
  80
  81        debug("Board BAT init\n");
  82
  83        p->interface = PMIC_NONE;
  84        p->name = name;
  85        p->bus = bus;
  86
  87        p->pbat = &power_bat_trats;
  88        return 0;
  89}
  90