1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Link Layer for Samsung S3FWRN5 NCI based Driver
 4 *
 5 * Copyright (C) 2015 Samsung Electrnoics
 6 * Robert Baldyga <r.baldyga@samsung.com>
 7 * Copyright (C) 2020 Samsung Electrnoics
 8 * Bongsu Jeon <bongsu.jeon@samsung.com>
 9 */
10
11#include <linux/gpio.h>
12#include <linux/delay.h>
13#include <linux/module.h>
14
15#include "phy_common.h"
16
17void s3fwrn5_phy_set_wake(void *phy_id, bool wake)
18{
19	struct phy_common *phy = phy_id;
20
21	mutex_lock(&phy->mutex);
22	gpio_set_value(phy->gpio_fw_wake, wake);
23	if (wake)
24		msleep(S3FWRN5_EN_WAIT_TIME);
25	mutex_unlock(&phy->mutex);
26}
27EXPORT_SYMBOL(s3fwrn5_phy_set_wake);
28
29bool s3fwrn5_phy_power_ctrl(struct phy_common *phy, enum s3fwrn5_mode mode)
30{
31	if (phy->mode == mode)
32		return false;
33
34	phy->mode = mode;
35
36	gpio_set_value(phy->gpio_en, 1);
37	gpio_set_value(phy->gpio_fw_wake, 0);
38	if (mode == S3FWRN5_MODE_FW)
39		gpio_set_value(phy->gpio_fw_wake, 1);
40
41	if (mode != S3FWRN5_MODE_COLD) {
42		msleep(S3FWRN5_EN_WAIT_TIME);
43		gpio_set_value(phy->gpio_en, 0);
44		msleep(S3FWRN5_EN_WAIT_TIME);
45	}
46
47	return true;
48}
49EXPORT_SYMBOL(s3fwrn5_phy_power_ctrl);
50
51void s3fwrn5_phy_set_mode(void *phy_id, enum s3fwrn5_mode mode)
52{
53	struct phy_common *phy = phy_id;
54
55	mutex_lock(&phy->mutex);
56
57	s3fwrn5_phy_power_ctrl(phy, mode);
58
59	mutex_unlock(&phy->mutex);
60}
61EXPORT_SYMBOL(s3fwrn5_phy_set_mode);
62
63enum s3fwrn5_mode s3fwrn5_phy_get_mode(void *phy_id)
64{
65	struct phy_common *phy = phy_id;
66	enum s3fwrn5_mode mode;
67
68	mutex_lock(&phy->mutex);
69
70	mode = phy->mode;
71
72	mutex_unlock(&phy->mutex);
73
74	return mode;
75}
76EXPORT_SYMBOL(s3fwrn5_phy_get_mode);