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