drivers/power/battery/bat_trats.c

   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
  14 static struct battery battery_trats;
  15
  16 static 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, 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, CHARGER_DISABLE, 0);
  46
  47         return 0;
  48 }
  49
  50 static 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
  65 static 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
  71 int 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 }