| Patrick Rudolph | 1194aa8 | 2017-05-21 08:49:44 +0200 | [diff] [blame^] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2017 Patrick Rudolph <siro@das-labor.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | |
| 16 | #include <southbridge/intel/common/gpio.h> |
| 17 | #include <console/console.h> |
| 18 | #include <device/device.h> |
| 19 | #include <ec/acpi/ec.h> |
| 20 | #include <option.h> |
| 21 | |
| 22 | #include "h8.h" |
| 23 | #include "chip.h" |
| 24 | |
| 25 | /* |
| 26 | * Controls BDC (Bluetooth daughter card) power. |
| 27 | */ |
| 28 | void h8_bluetooth_enable(int on) |
| 29 | { |
| 30 | if (on) |
| 31 | ec_set_bit(0x3a, 4); |
| 32 | else |
| 33 | ec_clr_bit(0x3a, 4); |
| 34 | } |
| 35 | |
| 36 | /* |
| 37 | * Detect BDC on supported MBs. |
| 38 | */ |
| 39 | bool h8_has_bdc(struct device *dev) |
| 40 | { |
| 41 | struct ec_lenovo_h8_config *conf = dev->chip_info; |
| 42 | |
| 43 | if (!conf->has_bdc_detection) { |
| 44 | printk(BIOS_INFO, "H8: BDC detection not implemented. " |
| 45 | "Assuming BDC installed\n"); |
| 46 | return true; |
| 47 | } |
| 48 | |
| 49 | if (get_gpio(conf->bdc_gpio_num) == conf->bdc_gpio_lvl) { |
| 50 | printk(BIOS_INFO, "H8: BDC installed\n"); |
| 51 | return true; |
| 52 | } |
| 53 | |
| 54 | printk(BIOS_INFO, "H8: BDC not installed\n"); |
| 55 | return false; |
| 56 | } |
| 57 | |
| 58 | /* |
| 59 | * Return BDC NVRAM setting. |
| 60 | */ |
| 61 | bool h8_bluetooth_nv_enable(void) |
| 62 | { |
| 63 | u8 val; |
| 64 | |
| 65 | if (get_option(&val, "bluetooth") != CB_SUCCESS) |
| 66 | return true; |
| 67 | |
| 68 | return val; |
| 69 | } |