| Łukasz Majewski | 294a97d | 2012-11-13 03:22:02 +0000 | [diff] [blame] | 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/power_chrg.h> |
| 27 | #include <power/max8997_muic.h> |
| 28 | #include <i2c.h> |
| 29 | #include <errno.h> |
| 30 | |
| 31 | static int power_chrg_get_type(struct pmic *p) |
| 32 | { |
| 33 | unsigned int val; |
| 34 | unsigned char charge_type, charger; |
| 35 | |
| 36 | if (pmic_probe(p)) |
| 37 | return CHARGER_NO; |
| 38 | |
| 39 | pmic_reg_read(p, MAX8997_MUIC_STATUS2, &val); |
| 40 | charge_type = val & MAX8997_MUIC_CHG_MASK; |
| 41 | |
| 42 | switch (charge_type) { |
| 43 | case MAX8997_MUIC_CHG_NO: |
| 44 | charger = CHARGER_NO; |
| 45 | break; |
| 46 | case MAX8997_MUIC_CHG_USB: |
| 47 | case MAX8997_MUIC_CHG_USB_D: |
| 48 | charger = CHARGER_USB; |
| 49 | break; |
| 50 | case MAX8997_MUIC_CHG_TA: |
| 51 | case MAX8997_MUIC_CHG_TA_1A: |
| 52 | charger = CHARGER_TA; |
| 53 | break; |
| 54 | case MAX8997_MUIC_CHG_TA_500: |
| 55 | charger = CHARGER_TA_500; |
| 56 | break; |
| 57 | default: |
| 58 | charger = CHARGER_UNKNOWN; |
| 59 | break; |
| 60 | } |
| 61 | |
| 62 | return charger; |
| 63 | } |
| 64 | |
| 65 | static struct power_chrg power_chrg_muic_ops = { |
| 66 | .chrg_type = power_chrg_get_type, |
| 67 | }; |
| 68 | |
| 69 | int power_muic_init(unsigned int bus) |
| 70 | { |
| 71 | static const char name[] = "MAX8997_MUIC"; |
| 72 | struct pmic *p = pmic_alloc(); |
| 73 | |
| 74 | if (!p) { |
| 75 | printf("%s: POWER allocation error!\n", __func__); |
| 76 | return -ENOMEM; |
| 77 | } |
| 78 | |
| 79 | debug("Board Micro USB Interface Controller init\n"); |
| 80 | |
| 81 | p->name = name; |
| 82 | p->interface = PMIC_I2C; |
| 83 | p->number_of_regs = MUIC_NUM_OF_REGS; |
| 84 | p->hw.i2c.addr = MAX8997_MUIC_I2C_ADDR; |
| 85 | p->hw.i2c.tx_num = 1; |
| 86 | p->bus = bus; |
| 87 | |
| 88 | p->chrg = &power_chrg_muic_ops; |
| 89 | return 0; |
| 90 | } |