esp-idf/components/esp_phy/src/phy_init_esp32hxx.c

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "esp_attr.h"
#include "freertos/portmacro.h"
#include "esp_phy_init.h"
#include "phy.h"

#define PHY_ENABLE_VERSION_PRINT 1

static DRAM_ATTR portMUX_TYPE s_phy_int_mux = portMUX_INITIALIZER_UNLOCKED;
extern void phy_version_print(void);

static _lock_t s_phy_access_lock;

/* Reference count of enabling PHY */
static uint8_t s_phy_access_ref = 0;

extern void bt_bb_v2_init_cmplx(int print_version);

uint32_t IRAM_ATTR phy_enter_critical(void)
{
    if (xPortInIsrContext()) {
        portENTER_CRITICAL_ISR(&s_phy_int_mux);

    } else {
        portENTER_CRITICAL(&s_phy_int_mux);
    }
    // Interrupt level will be stored in current tcb, so always return zero.
    return 0;
}

void IRAM_ATTR phy_exit_critical(uint32_t level)
{
    // Param level don't need any more, ignore it.
    if (xPortInIsrContext()) {
        portEXIT_CRITICAL_ISR(&s_phy_int_mux);
    } else {
        portEXIT_CRITICAL(&s_phy_int_mux);
    }
}

void esp_phy_enable(void)
{
    _lock_acquire(&s_phy_access_lock);
    if (s_phy_access_ref == 0) {
        register_chipv7_phy(NULL, NULL, PHY_RF_CAL_FULL);
        bt_bb_v2_init_cmplx(PHY_ENABLE_VERSION_PRINT);
        phy_version_print();
    }

    s_phy_access_ref++;

    _lock_release(&s_phy_access_lock);
    // ESP32H2-TODO: enable common clk.
}

void esp_phy_disable(void)
{
    // ESP32H2-TODO: close rf and disable clk for modem sleep and light sleep
}