summaryrefslogtreecommitdiff
path: root/src/ec/lenovo/h8/bluetooth.c
blob: 0ee0c021955b8554c3a3cae0a7b0af3a385f4a02 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */

#include <southbridge/intel/common/gpio.h>
#include <console/console.h>
#include <device/device.h>
#include <ec/acpi/ec.h>
#include <option.h>
#include <types.h>

#include "h8.h"
#include "chip.h"

/*
 * Controls BDC (Bluetooth daughter card) power.
 */
void h8_bluetooth_enable(int on)
{
	if (on)
		ec_set_bit(0x3a, 4);
	else
		ec_clr_bit(0x3a, 4);
}

/*
 * Detect BDC on supported MBs.
 */
bool h8_has_bdc(struct device *dev)
{
	struct ec_lenovo_h8_config *conf = dev->chip_info;

	if (!conf->has_bdc_detection) {
		printk(BIOS_INFO, "H8: BDC detection not implemented. "
				  "Assuming BDC installed\n");
		return true;
	}

	if (get_gpio(conf->bdc_gpio_num) == conf->bdc_gpio_lvl) {
		printk(BIOS_INFO, "H8: BDC installed\n");
		return true;
	}

	printk(BIOS_INFO, "H8: BDC not installed\n");
	return false;
}

/*
 * Return BDC NVRAM setting.
 */
bool h8_bluetooth_nv_enable(void)
{
	u8 val;

	if (get_option(&val, "bluetooth") != CB_SUCCESS)
		return true;

	return val;
}