esp-idf/components/esp_hw_support/port/pau_regdma.c

/*
 * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <stdint.h>
#include <stdlib.h>
#include <esp_types.h>
#include "sdkconfig.h"
#include "esp_attr.h"
#include "soc/soc.h"
#include "esp_private/esp_pau.h"
#include "esp_log.h"
#include "soc/pcr_reg.h"

static __attribute__((unused)) const char *TAG = "pau_regdma";

typedef struct {
    pau_hal_context_t *hal;
} pau_context_t;

pau_context_t * __attribute__((weak)) PAU_instance(void)
{
    static pau_hal_context_t pau_hal = { .dev = &PAU };
    static pau_context_t pau_context = { .hal = &pau_hal };
    *(volatile uint32_t *)PCR_REGDMA_CONF_REG |= PCR_REGDMA_CLK_EN;
    return &pau_context;
}

void pau_regdma_set_entry_link_addr(pau_regdma_link_addr_t *link_entries)
{
    ESP_LOGD(TAG, "All link addresses %p,%p,%p,%p", (*link_entries)[0], (*link_entries)[1], (*link_entries)[2], (*link_entries)[3]);
    pau_hal_set_regdma_entry_link_addr(PAU_instance()->hal, link_entries);
}

void pau_regdma_set_modem_link_addr(void *link_addr)
{
    pau_hal_set_regdma_modem_link_addr(PAU_instance()->hal, link_addr);
}

void pau_regdma_trigger_modem_link_backup(void)
{
    pau_hal_start_regdma_modem_link(PAU_instance()->hal, true);
    pau_hal_stop_regdma_modem_link(PAU_instance()->hal);
}

void pau_regdma_trigger_modem_link_restore(void)
{
    pau_hal_start_regdma_modem_link(PAU_instance()->hal, false);
    pau_hal_stop_regdma_modem_link(PAU_instance()->hal);
}

void pau_regdma_set_extra_link_addr(void *link_addr)
{
    pau_hal_set_regdma_extra_link_addr(PAU_instance()->hal, link_addr);
}

void pau_regdma_trigger_extra_link_backup(void)
{
    pau_hal_start_regdma_extra_link(PAU_instance()->hal, true);
    pau_hal_stop_regdma_extra_link(PAU_instance()->hal);
}

void pau_regdma_trigger_extra_link_restore(void)
{
    pau_hal_start_regdma_extra_link(PAU_instance()->hal, false);
    pau_hal_stop_regdma_extra_link(PAU_instance()->hal);
}