cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

phy_common.c (1595B)

      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);