mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
|
/*
|
||
|
|
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
#include <sys/param.h>
|
||
|
|
#include "sdkconfig.h"
|
||
|
|
#if CONFIG_GDMA_ENABLE_DEBUG_LOG
|
||
|
|
// The local log level must be defined before including esp_log.h
|
||
|
|
// Set the maximum log level for this source file
|
||
|
|
#define LOG_LOCAL_LEVEL ESP_LOG_DEBUG
|
||
|
|
#endif
|
||
|
|
#include "freertos/FreeRTOS.h"
|
||
|
|
#include "freertos/task.h"
|
||
|
|
#include "soc/soc_caps.h"
|
||
|
|
#include "soc/periph_defs.h"
|
||
|
|
#include "esp_log.h"
|
||
|
|
#include "esp_check.h"
|
||
|
|
#include "gdma_priv.h"
|
||
|
|
|
||
|
|
static const char *TAG = "gdma";
|
||
|
|
|
||
|
|
esp_err_t gdma_config_crc_calculator(gdma_channel_handle_t dma_chan, const gdma_crc_calculator_config_t *config)
|
||
|
|
{
|
||
|
|
ESP_RETURN_ON_FALSE(dma_chan && config, ESP_ERR_INVALID_ARG, TAG, "invalid argument");
|
||
|
|
gdma_pair_t *pair = dma_chan->pair;
|
||
|
|
gdma_group_t *group = pair->group;
|
||
|
|
gdma_hal_context_t *hal = &group->hal;
|
||
|
|
switch (group->bus_id) {
|
||
|
|
#if SOC_AHB_GDMA_SUPPORTED
|
||
|
|
case SOC_GDMA_BUS_AHB:
|
||
|
|
ESP_RETURN_ON_FALSE(config->crc_bit_width <= GDMA_LL_AHB_MAX_CRC_BIT_WIDTH, ESP_ERR_INVALID_ARG, TAG, "invalid crc bit width");
|
||
|
|
break;
|
||
|
|
#endif // SOC_AHB_GDMA_SUPPORTED
|
||
|
|
#if SOC_AXI_GDMA_SUPPORTED
|
||
|
|
case SOC_GDMA_BUS_AXI:
|
||
|
|
ESP_RETURN_ON_FALSE(config->crc_bit_width <= GDMA_LL_AXI_MAX_CRC_BIT_WIDTH, ESP_ERR_INVALID_ARG, TAG, "invalid crc bit width");
|
||
|
|
break;
|
||
|
|
#endif // SOC_AXI_GDMA_SUPPORTED
|
||
|
|
default:
|
||
|
|
ESP_LOGE(TAG, "invalid bus id: %d", group->bus_id);
|
||
|
|
return ESP_ERR_INVALID_ARG;
|
||
|
|
}
|
||
|
|
|
||
|
|
// clear the previous CRC result
|
||
|
|
gdma_hal_clear_crc(hal, pair->pair_id, dma_chan->direction);
|
||
|
|
|
||
|
|
// set polynomial and initial value
|
||
|
|
gdma_hal_crc_config_t hal_config = {
|
||
|
|
.crc_bit_width = config->crc_bit_width,
|
||
|
|
.poly_hex = config->poly_hex,
|
||
|
|
.init_value = config->init_value,
|
||
|
|
.reverse_data_mask = config->reverse_data_mask,
|
||
|
|
};
|
||
|
|
gdma_hal_set_crc_poly(hal, pair->pair_id, dma_chan->direction, &hal_config);
|
||
|
|
|
||
|
|
return ESP_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
esp_err_t gdma_crc_get_result(gdma_channel_handle_t dma_chan, uint32_t *result)
|
||
|
|
{
|
||
|
|
ESP_RETURN_ON_FALSE(dma_chan && result, ESP_ERR_INVALID_ARG, TAG, "invalid argument");
|
||
|
|
gdma_pair_t *pair = dma_chan->pair;
|
||
|
|
gdma_group_t *group = pair->group;
|
||
|
|
gdma_hal_context_t *hal = &group->hal;
|
||
|
|
|
||
|
|
*result = gdma_hal_get_crc_result(hal, pair->pair_id, dma_chan->direction);
|
||
|
|
|
||
|
|
return ESP_OK;
|
||
|
|
}
|