1 /*
2  * SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  */
6 
7 #include <stdbool.h>
8 #include "regi2c_ctrl.h"
9 #include "driver/adc.h"
10 
11 /*
12  * This file is used to override the hooks provided by the PHY lib for some system features.
13  * Call phy_override() so that this file will be linked.
14  */
15 
16 static bool s_wifi_adc_xpd_flag;
17 
include_esp_phy_override(void)18 void include_esp_phy_override(void)
19 {
20     /* When this empty function is called, all functions below will be linked. */
21 }
22 
23 /* Coordinate ADC power with other modules. */
24 // It seems that it is only required on ESP32, but we still compile it for all chips, in case it is
25 // called by PHY unexpectedly.
set_xpd_sar(bool en)26 void set_xpd_sar(bool en)
27 {
28     if (s_wifi_adc_xpd_flag == en) {
29         /* ignore repeated calls to set_xpd_sar when the state is already correct */
30         return;
31     }
32 
33     s_wifi_adc_xpd_flag = en;
34     if (en) {
35         adc_power_acquire();
36     } else {
37         adc_power_release();
38     }
39 }
40 
41 //add spinlock protection
phy_i2c_enter_critical(void)42 IRAM_ATTR void phy_i2c_enter_critical(void)
43 {
44     regi2c_enter_critical();
45 }
46 
phy_i2c_exit_critical(void)47 IRAM_ATTR void phy_i2c_exit_critical(void)
48 {
49     regi2c_exit_critical();
50 }
51