LXR uboot/drivers/power/battery/bat

   1/*
   2 *  Copyright (C) 2012 Samsung Electronics
   3 *  Lukasz Majewski <l.majewski@samsung.com>
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24#include <common.h>
  25#include <power/pmic.h>
  26#include <power/battery.h>
  27#include <power/max8997_pmic.h>
  28#include <errno.h>
  29
  30static struct battery battery_trats;
  31
  32static int power_battery_charge(struct pmic *bat)
  33{
  34        struct power_battery *p_bat = bat->pbat;
  35        struct battery *battery = p_bat->bat;
  36        int k;
  37
  38        if (bat->chrg->chrg_state(p_bat->chrg, CHARGER_ENABLE, 450))
  39                return -1;
  40
  41        for (k = 0; bat->chrg->chrg_bat_present(p_bat->chrg) &&
  42                     bat->chrg->chrg_type(p_bat->muic) &&
  43                     battery->state_of_chrg < 100; k++) {
  44                udelay(10000000);
  45                puts(".");
  46                bat->fg->fg_battery_update(p_bat->fg, bat);
  47
  48                if (k == 100) {
  49                        debug(" %d [V]", battery->voltage_uV);
  50                        puts("\n");
  51                        k = 0;
  52                }
  53
  54        }
  55
  56        bat->chrg->chrg_state(p_bat->chrg, CHARGER_DISABLE, 0);
  57
  58        return 0;
  59}
  60
  61static int power_battery_init_trats(struct pmic *bat_,
  62                                    struct pmic *fg_,
  63                                    struct pmic *chrg_,
  64                                    struct pmic *muic_)
  65{
  66        bat_->pbat->fg = fg_;
  67        bat_->pbat->chrg = chrg_;
  68        bat_->pbat->muic = muic_;
  69
  70        bat_->fg = fg_->fg;
  71        bat_->chrg = chrg_->chrg;
  72        bat_->chrg->chrg_type = muic_->chrg->chrg_type;
  73        return 0;
  74}
  75
  76static struct power_battery power_bat_trats = {
  77        .bat = &battery_trats,
  78        .battery_init = power_battery_init_trats,
  79        .battery_charge = power_battery_charge,
  80};
  81
  82int power_bat_init(unsigned char bus)
  83{
  84        static const char name[] = "BAT_TRATS";
  85        struct pmic *p = pmic_alloc();
  86
  87        if (!p) {
  88                printf("%s: POWER allocation error!\n", __func__);
  89                return -ENOMEM;
  90        }
  91
  92        debug("Board BAT init\n");
  93
  94        p->interface = PMIC_NONE;
  95        p->name = name;
  96        p->bus = bus;
  97
  98        p->pbat = &power_bat_trats;
  99        return 0;
 100}
 101