esp-idf/components/esp_hw_support/test/test_gdma.c
2022-06-28 14:17:12 +08:00

74 lines
3.0 KiB
C

/*
* SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "unity.h"
#include "esp_private/gdma.h"
#include "soc/soc_caps.h"
#if SOC_GDMA_SUPPORTED
TEST_CASE("GDMA channel allocation", "[gdma]")
{
gdma_channel_alloc_config_t channel_config = {};
gdma_channel_handle_t tx_channels[SOC_GDMA_PAIRS_PER_GROUP] = {};
gdma_channel_handle_t rx_channels[SOC_GDMA_PAIRS_PER_GROUP] = {};
channel_config.direction = GDMA_CHANNEL_DIRECTION_TX;
gdma_tx_event_callbacks_t tx_cbs = {};
gdma_rx_event_callbacks_t rx_cbs = {};
// install TX channels for different peripherals
for (int i = 0; i < SOC_GDMA_PAIRS_PER_GROUP; i++) {
TEST_ESP_OK(gdma_new_channel(&channel_config, &tx_channels[i]));
TEST_ESP_OK(gdma_connect(tx_channels[i], GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_M2M, 0)));
TEST_ESP_OK(gdma_register_tx_event_callbacks(tx_channels[i], &tx_cbs, NULL));
};
TEST_ASSERT_EQUAL(ESP_ERR_NOT_FOUND, gdma_new_channel(&channel_config, &tx_channels[0]));
// Free interrupts before installing RX interrupts to ensure enough free interrupts
for (int i = 0; i < SOC_GDMA_PAIRS_PER_GROUP; i++) {
TEST_ESP_OK(gdma_disconnect(tx_channels[i]));
TEST_ESP_OK(gdma_del_channel(tx_channels[i]));
}
// install RX channels for different peripherals
channel_config.direction = GDMA_CHANNEL_DIRECTION_RX;
for (int i = 0; i < SOC_GDMA_PAIRS_PER_GROUP; i++) {
TEST_ESP_OK(gdma_new_channel(&channel_config, &rx_channels[i]));
TEST_ESP_OK(gdma_connect(rx_channels[i], GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_M2M, 0)));
TEST_ESP_OK(gdma_register_rx_event_callbacks(rx_channels[i], &rx_cbs, NULL));
}
TEST_ASSERT_EQUAL(ESP_ERR_NOT_FOUND, gdma_new_channel(&channel_config, &rx_channels[0]));
for (int i = 0; i < SOC_GDMA_PAIRS_PER_GROUP; i++) {
TEST_ESP_OK(gdma_disconnect(rx_channels[i]));
TEST_ESP_OK(gdma_del_channel(rx_channels[i]));
}
// install single and paired TX/RX channels
#if SOC_GDMA_PAIRS_PER_GROUP >= 2
// single tx channel
channel_config.direction = GDMA_CHANNEL_DIRECTION_TX;
TEST_ESP_OK(gdma_new_channel(&channel_config, &tx_channels[0]));
// create tx channel and reserve sibling
channel_config.direction = GDMA_CHANNEL_DIRECTION_TX;
channel_config.flags.reserve_sibling = 1;
TEST_ESP_OK(gdma_new_channel(&channel_config, &tx_channels[1]));
// create rx channel and specify sibling channel
channel_config.flags.reserve_sibling = 0;
channel_config.sibling_chan = tx_channels[1]; // specify sibling channel
channel_config.direction = GDMA_CHANNEL_DIRECTION_RX;
TEST_ESP_OK(gdma_new_channel(&channel_config, &rx_channels[1]));
channel_config.sibling_chan = NULL;
TEST_ESP_OK(gdma_new_channel(&channel_config, &rx_channels[0]));
for (int i = 0; i < 2; i++) {
TEST_ESP_OK(gdma_del_channel(tx_channels[i]));
TEST_ESP_OK(gdma_del_channel(rx_channels[i]));
}
#endif
}
#endif