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 17 void 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 msleep(S3FWRN5_EN_WAIT_TIME); 24 mutex_unlock(&phy->mutex); 25 } 26 EXPORT_SYMBOL(s3fwrn5_phy_set_wake); 27 28 bool s3fwrn5_phy_power_ctrl(struct phy_common *phy, enum s3fwrn5_mode mode) 29 { 30 if (phy->mode == mode) 31 return false; 32 33 phy->mode = mode; 34 35 gpio_set_value(phy->gpio_en, 1); 36 gpio_set_value(phy->gpio_fw_wake, 0); 37 if (mode == S3FWRN5_MODE_FW) 38 gpio_set_value(phy->gpio_fw_wake, 1); 39 40 if (mode != S3FWRN5_MODE_COLD) { 41 msleep(S3FWRN5_EN_WAIT_TIME); 42 gpio_set_value(phy->gpio_en, 0); 43 msleep(S3FWRN5_EN_WAIT_TIME); 44 } 45 46 return true; 47 } 48 EXPORT_SYMBOL(s3fwrn5_phy_power_ctrl); 49 50 void s3fwrn5_phy_set_mode(void *phy_id, enum s3fwrn5_mode mode) 51 { 52 struct phy_common *phy = phy_id; 53 54 mutex_lock(&phy->mutex); 55 56 s3fwrn5_phy_power_ctrl(phy, mode); 57 58 mutex_unlock(&phy->mutex); 59 } 60 EXPORT_SYMBOL(s3fwrn5_phy_set_mode); 61 62 enum s3fwrn5_mode s3fwrn5_phy_get_mode(void *phy_id) 63 { 64 struct phy_common *phy = phy_id; 65 enum s3fwrn5_mode mode; 66 67 mutex_lock(&phy->mutex); 68 69 mode = phy->mode; 70 71 mutex_unlock(&phy->mutex); 72 73 return mode; 74 } 75 EXPORT_SYMBOL(s3fwrn5_phy_get_mode); 76