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feat(driver_spi): slave driver support config different tx/rx length

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This commit is contained in:
wanckl
2026-07-06 11:58:20 +08:00
committed by Wan Lei
parent 169aded5b1
commit 072f62d70d
7 changed files with 103 additions and 66 deletions
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components/esp_driver_spi/test_apps/slave/main/test_spi_slave.c
+62 -48
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2021-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -152,7 +152,7 @@ TEST_CASE("test fullduplex slave with only TX direction", "[spi]")
spi_slave_transaction_t slave_t;
spi_slave_transaction_t *out;
memset(&slave_t, 0, sizeof(spi_slave_transaction_t));
slave_t.length = 8 * 32;
slave_t.tx_length = 8 * 32;
slave_t.tx_buffer = slave_txbuf;
slave_t.rx_buffer = NULL;
slave_t.flags |= SPI_SLAVE_TRANS_DMA_BUFFER_ALIGN_AUTO;
@@ -189,7 +189,7 @@ TEST_CASE("test fullduplex slave with only TX direction", "[spi]")
}
#define TEST_SLV_RX_BUF_LEN 15
TEST_CASE("Test slave rx no_dma overwrite when length below/over config", "[spi]")
TEST_CASE("Test slave rx_buffer overwrite if trans_len below/over config_len", "[spi]")
{
spi_bus_config_t buscfg = SPI_BUS_TEST_DEFAULT_CONFIG();
buscfg.flags |= SPICOMMON_BUSFLAG_GPIO_PINS;
@@ -198,65 +198,79 @@ TEST_CASE("Test slave rx no_dma overwrite when length below/over config", "[spi]
spi_device_interface_config_t devcfg = SPI_DEVICE_TEST_DEFAULT_CONFIG();
TEST_ESP_OK(spi_bus_add_device(TEST_SPI_HOST, &devcfg, &spidev0));
spi_slave_interface_config_t slvcfg = SPI_SLAVE_TEST_DEFAULT_CONFIG();
TEST_ESP_OK(spi_slave_initialize(TEST_SLAVE_HOST, &buscfg, &slvcfg, SPI_DMA_DISABLED));
for (int use_dma = 0; use_dma < 2; use_dma++) {
printf("\n------------- DMA: %s -------------\n", use_dma ? "Enable" : "Disable");
spi_slave_interface_config_t slvcfg = SPI_SLAVE_TEST_DEFAULT_CONFIG();
TEST_ESP_OK(spi_slave_initialize(TEST_SLAVE_HOST, &buscfg, &slvcfg, use_dma ? SPI_DMA_CH_AUTO : SPI_DMA_DISABLED));
same_pin_func_sel(TEST_SPI_HOST, TEST_SLAVE_HOST, buscfg, devcfg.spics_io_num);
//initialize master and slave on the same pins break some of the output configs, fix them
same_pin_func_sel(TEST_SPI_HOST, TEST_SLAVE_HOST, buscfg, devcfg.spics_io_num);
uint8_t master_tx[TEST_SLV_RX_BUF_LEN], master_rx[TEST_SLV_RX_BUF_LEN];
uint8_t slave_tx[TEST_SLV_RX_BUF_LEN], slave_rx[TEST_SLV_RX_BUF_LEN];
for (uint8_t i = 0; i < TEST_SLV_RX_BUF_LEN; i++) {
master_tx[i] = TEST_SLV_RX_BUF_LEN - i;
slave_tx[i] = i + 1;
slave_rx[i] = 100;
}
uint8_t master_tx[TEST_SLV_RX_BUF_LEN], slave_rx[TEST_SLV_RX_BUF_LEN];
for (uint8_t i = 0; i < TEST_SLV_RX_BUF_LEN; i++) {
master_tx[i] = TEST_SLV_RX_BUF_LEN - i;
slave_rx[i] = 100;
}
//------------------------------ trans_len < config_len ------------------------------
printf("Testing trans_len < config_len:\n");
spi_slave_transaction_t *slave_out, slave_tans = {
.tx_buffer = slave_tx,
.rx_buffer = slave_rx,
.tx_length = 8 * 10, // let tx shorter than rx but larger than trans_len
.rx_length = 8 * (TEST_SLV_RX_BUF_LEN),
.flags = SPI_SLAVE_TRANS_DMA_BUFFER_ALIGN_AUTO,
};
TEST_ESP_OK(spi_slave_queue_trans(TEST_SLAVE_HOST, &slave_tans, portMAX_DELAY));
//------------------------------ trans_len < config_len ------------------------------
printf("Testing trans_len < config_len:\n");
spi_slave_transaction_t *slave_out, slave_tans = {
.length = 8 * TEST_SLV_RX_BUF_LEN,
.rx_buffer = slave_rx,
};
TEST_ESP_OK(spi_slave_queue_trans(TEST_SLAVE_HOST, &slave_tans, portMAX_DELAY));
spi_transaction_t master_tans = {
.length = 8 * 7,
.rx_buffer = master_rx,
.tx_buffer = master_tx,
};
memset(master_rx, 0x55, TEST_SLV_RX_BUF_LEN);
spi_device_polling_transmit(spidev0, &master_tans);
spi_transaction_t master_tans = {
.length = 8 * 7,
.tx_buffer = master_tx,
};
spi_device_polling_transmit(spidev0, &master_tans);
TEST_ESP_OK(spi_slave_get_trans_result(TEST_SLAVE_HOST, &slave_out, portMAX_DELAY));
TEST_ESP_OK(spi_slave_get_trans_result(TEST_SLAVE_HOST, &slave_out, portMAX_DELAY));
ESP_LOGI(SLAVE_TAG, "trans_len: %d, config_len rx %d tx %d", master_tans.length / 8, slave_tans.rx_length / 8, slave_tans.tx_length / 8);
ESP_LOG_BUFFER_HEX("master tx", master_tans.tx_buffer, master_tans.length / 8);
ESP_LOG_BUFFER_HEX("slave rx", slave_tans.rx_buffer, TEST_SLV_RX_BUF_LEN);
ESP_LOG_BUFFER_HEX("master rx", master_rx, TEST_SLV_RX_BUF_LEN);
ESP_LOGI(SLAVE_TAG, "trans_len: %d, config_len %d", slave_tans.trans_len / 8, slave_tans.length / 8);
ESP_LOG_BUFFER_HEX("master tx", master_tans.tx_buffer, master_tans.length / 8);
ESP_LOG_BUFFER_HEX("slave rx", slave_tans.rx_buffer, TEST_SLV_RX_BUF_LEN);
TEST_ASSERT_EQUAL(master_tans.length, slave_tans.trans_len);
for (uint8_t i = slave_tans.trans_len; i < slave_tans.rx_length; i += 8) {
TEST_ASSERT_EQUAL(slave_rx[i / 8], 100);
}
TEST_ASSERT_EQUAL_HEX8_ARRAY(slave_tx, master_rx, master_tans.length / 8);
TEST_ASSERT_EQUAL(master_tans.length, slave_tans.trans_len);
for (uint8_t i = slave_tans.trans_len; i < slave_tans.length; i += 8) {
TEST_ASSERT_EQUAL(slave_rx[i / 8], 100);
}
//------------------------------ trans_len > config_len ------------------------------
printf("Testing trans_len > config_len:\n");
slave_tans.rx_length = 8 * 8;
slave_tans.tx_length = 8 * 10;
TEST_ESP_OK(spi_slave_queue_trans(TEST_SLAVE_HOST, &slave_tans, portMAX_DELAY));
//------------------------------ trans_len > config_len ------------------------------
printf("Testing trans_len > config_len:\n");
slave_tans.length = 8 * 9;
TEST_ESP_OK(spi_slave_queue_trans(TEST_SLAVE_HOST, &slave_tans, portMAX_DELAY));
master_tans.length = 8 * 13,
master_tans.rxlength = 8 * 13;
spi_device_polling_transmit(spidev0, &master_tans);
master_tans.length = 8 * 11,
spi_device_polling_transmit(spidev0, &master_tans);
TEST_ESP_OK(spi_slave_get_trans_result(TEST_SLAVE_HOST, &slave_out, portMAX_DELAY));
TEST_ESP_OK(spi_slave_get_trans_result(TEST_SLAVE_HOST, &slave_out, portMAX_DELAY));
ESP_LOGI(SLAVE_TAG, "trans_len: %d, config_len %d", master_tans.length / 8, slave_tans.trans_len / 8);
ESP_LOG_BUFFER_HEX("master tx", master_tans.tx_buffer, master_tans.length / 8);
ESP_LOG_BUFFER_HEX("slave rx", slave_tans.rx_buffer, TEST_SLV_RX_BUF_LEN);
ESP_LOGI(SLAVE_TAG, "trans_len: %d, config_len rx %d tx %d", master_tans.length / 8, slave_tans.rx_length / 8, slave_tans.tx_length / 8);
ESP_LOG_BUFFER_HEX("master tx", master_tans.tx_buffer, master_tans.length / 8);
ESP_LOG_BUFFER_HEX("slave rx", slave_tans.rx_buffer, TEST_SLV_RX_BUF_LEN);
ESP_LOG_BUFFER_HEX("master rx", master_rx, TEST_SLV_RX_BUF_LEN);
#if !CONFIG_IDF_TARGET_ESP32 // esp32 already hardware limited trans_len <= config_len
TEST_ASSERT_EQUAL(master_tans.length, slave_tans.trans_len);
TEST_ASSERT_EQUAL(master_tans.length, slave_tans.trans_len);
#endif
for (uint8_t i = slave_tans.length; i < TEST_SLV_RX_BUF_LEN * 8; i += 8) {
TEST_ASSERT_EQUAL(slave_rx[i / 8], 100);
}
for (uint8_t i = slave_tans.rx_length; i < TEST_SLV_RX_BUF_LEN * 8; i += 8) {
TEST_ASSERT_EQUAL(slave_rx[i / 8], 100);
}
TEST_ASSERT_EQUAL_HEX8_ARRAY(slave_tx, master_rx, slave_tans.tx_length / 8);
TEST_ESP_OK(spi_slave_free(TEST_SLAVE_HOST));
TEST_ESP_OK(spi_slave_free(TEST_SLAVE_HOST));
}
TEST_ESP_OK(spi_bus_remove_device(spidev0));
TEST_ESP_OK(spi_bus_free(TEST_SPI_HOST));
}