esp-idf/components/driver/test/test_spi_slave_hd.c

/*
 Tests for the spi slave hd mode
*/

#include "esp_log.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "unity.h"

#include "soc/spi_periph.h"
#include "driver/spi_master.h"
#include "esp_serial_slave_link/essl_spi.h"

#if !DISABLED_FOR_TARGETS(ESP32C3)
//There is only one GPSPI controller on ESP32C3, so single-board test is disabled.

#if SOC_SPI_SUPPORT_SLAVE_HD_VER2
#include "driver/spi_slave_hd.h"
#include "esp_rom_gpio.h"
#include "unity.h"
#include "test/test_common_spi.h"

#define TEST_DMA_MAX_SIZE    14000
#define TEST_BUFFER_SIZE 256     ///< buffer size of each wrdma buffer in fifo mode
#define TEST_SEG_SIZE   25

//ESP32-S2 cannot do single board test over IOMUX+GPIO matrix
#define TEST_MASTER_GPIO_MATRIX     1

#define SPI_SLOT_TEST_DEFAULT_CONFIG() {\
    .spics_io_num = PIN_NUM_CS, \
    .flags = 0, \
    .mode = 0, \
    .command_bits = 8,\
    .address_bits = 8,\
    .dummy_bits = 8,\
    .queue_size = 10,\
}

//context definition for the tcf framework
typedef struct {
    WORD_ALIGNED_ATTR uint8_t master_wrdma_buf[TEST_DMA_MAX_SIZE];
    WORD_ALIGNED_ATTR uint8_t master_rddma_buf[TEST_DMA_MAX_SIZE];
    WORD_ALIGNED_ATTR uint8_t slave_wrdma_buf[TEST_DMA_MAX_SIZE];
    WORD_ALIGNED_ATTR uint8_t slave_rddma_buf[TEST_DMA_MAX_SIZE];
    SemaphoreHandle_t ev_rdbuf;
    SemaphoreHandle_t ev_wrbuf;

    spi_slave_hd_data_t tx_data;
    spi_slave_hd_data_t rx_data;
} testhd_context_t;


static uint32_t get_hd_flags(void)
{
#if !defined(SLAVE_SUPPORT_QIO)
    return 0;
#endif
    int flag_id = rand() % 5;
    ESP_LOGI("io mode", "%d", flag_id);

    switch (flag_id) {
        case 1:
            return SPI_TRANS_MODE_DIO;
        case 2:
            return SPI_TRANS_MODE_DIO | SPI_TRANS_MODE_DIOQIO_ADDR;
        case 3:
            return SPI_TRANS_MODE_QIO;
        case 4:
            return SPI_TRANS_MODE_QIO | SPI_TRANS_MODE_DIOQIO_ADDR;
        default:
            return 0;
    }
}

void config_single_board_test_pin(void)
{
    esp_rom_gpio_connect_out_signal(PIN_NUM_MOSI, spi_periph_signal[TEST_SPI_HOST].spid_out, 0, 0);
    esp_rom_gpio_connect_in_signal(PIN_NUM_MOSI, spi_periph_signal[TEST_SLAVE_HOST].spid_in, 0);

    esp_rom_gpio_connect_out_signal(PIN_NUM_MISO, spi_periph_signal[TEST_SLAVE_HOST].spiq_out, 0, 0);
    esp_rom_gpio_connect_in_signal(PIN_NUM_MISO, spi_periph_signal[TEST_SPI_HOST].spiq_in, 0);

    esp_rom_gpio_connect_out_signal(PIN_NUM_CS, spi_periph_signal[TEST_SPI_HOST].spics_out[0], 0, 0);
    esp_rom_gpio_connect_in_signal(PIN_NUM_CS, spi_periph_signal[TEST_SLAVE_HOST].spics_in, 0);

    esp_rom_gpio_connect_out_signal(PIN_NUM_CLK, spi_periph_signal[TEST_SPI_HOST].spiclk_out, 0, 0);
    esp_rom_gpio_connect_in_signal(PIN_NUM_CLK, spi_periph_signal[TEST_SLAVE_HOST].spiclk_in, 0);
}

static void init_master_hd(spi_device_handle_t* spi, const spitest_param_set_t* config, int freq)
{
    spi_bus_config_t bus_cfg = SPI_BUS_TEST_DEFAULT_CONFIG();
    bus_cfg.max_transfer_sz = TEST_DMA_MAX_SIZE;
    bus_cfg.quadhd_io_num = PIN_NUM_HD;
    bus_cfg.quadwp_io_num = PIN_NUM_WP;
#if defined(TEST_MASTER_GPIO_MATRIX) && CONFIG_IDF_TARGET_ESP32S2
    bus_cfg.flags |= SPICOMMON_BUSFLAG_GPIO_PINS;
#endif

    TEST_ESP_OK(spi_bus_initialize(TEST_SPI_HOST, &bus_cfg, TEST_SPI_HOST));
    spi_device_interface_config_t dev_cfg = SPI_DEVICE_TEST_DEFAULT_CONFIG();
    dev_cfg.flags = SPI_DEVICE_HALFDUPLEX;
    dev_cfg.command_bits = 8;
    dev_cfg.address_bits = 8;
    dev_cfg.dummy_bits = 8;
    dev_cfg.clock_speed_hz = freq;
    dev_cfg.mode = config->mode;
    dev_cfg.input_delay_ns = config->slave_tv_ns;
    TEST_ESP_OK(spi_bus_add_device(TEST_SPI_HOST, &dev_cfg, spi));
}

static void init_slave_hd(int mode, const spi_slave_hd_callback_config_t* callback)
{
    spi_bus_config_t bus_cfg = SPI_BUS_TEST_DEFAULT_CONFIG();
    bus_cfg.max_transfer_sz = TEST_DMA_MAX_SIZE*30;
    bus_cfg.quadwp_io_num = SLAVE_PIN_NUM_WP;
    bus_cfg.quadhd_io_num = SLAVE_PIN_NUM_HD;
#ifdef TEST_SLAVE_GPIO_MATRIX
    bus_cfg.flags |= SPICOMMON_BUSFLAG_FORCE_GPIO;
#endif
    spi_slave_hd_slot_config_t slave_hd_cfg = SPI_SLOT_TEST_DEFAULT_CONFIG();
    slave_hd_cfg.mode = mode;
    slave_hd_cfg.dma_chan = TEST_SLAVE_HOST;
    if (callback) {
        slave_hd_cfg.cb_config = *callback;
    } else {
        slave_hd_cfg.cb_config = (spi_slave_hd_callback_config_t){};
    }
    TEST_ESP_OK(spi_slave_hd_init(TEST_SLAVE_HOST, &bus_cfg, &slave_hd_cfg));
}

static void test_hd_init(void** arg)
{
    TEST_ASSERT(*arg==NULL);
    *arg = malloc(sizeof(testhd_context_t));
    assert(((int)arg%4)==0);
    testhd_context_t* context = (testhd_context_t*)*arg;
    TEST_ASSERT(context!=NULL);

    context->ev_rdbuf = xSemaphoreCreateBinary();
    context->ev_wrbuf = xSemaphoreCreateBinary();
}

static void test_hd_deinit(void* arg)
{
    testhd_context_t *context = arg;
    vSemaphoreDelete(context->ev_rdbuf);
    vSemaphoreDelete(context->ev_wrbuf);
}

esp_err_t wait_wrbuf_sig(testhd_context_t* context, TickType_t wait)
{
    BaseType_t r = xSemaphoreTake(context->ev_wrbuf, wait);
    if (r==pdTRUE) {
        return ESP_OK;
    } else {
        return ESP_ERR_TIMEOUT;
    }
}

esp_err_t wait_rdbuf_sig(testhd_context_t* context, TickType_t wait)
{
    BaseType_t r = xSemaphoreTake(context->ev_rdbuf, wait);
    if (r==pdTRUE) {
        return ESP_OK;
    } else {
        return ESP_ERR_TIMEOUT;
    }
}

static void check_no_rx(testhd_context_t* context)
{
    spi_slave_hd_data_t* ret_trans;
    esp_err_t ret = spi_slave_hd_get_trans_res(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_RX, &ret_trans, 0);
    TEST_ASSERT_EQUAL(ESP_ERR_TIMEOUT, ret);
}

static void check_no_tx(testhd_context_t* context)
{
    spi_slave_hd_data_t* ret_trans;
    esp_err_t ret = spi_slave_hd_get_trans_res(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_TX, &ret_trans, 0);
    TEST_ASSERT_EQUAL(ESP_ERR_TIMEOUT, ret);
}

bool wrbuf_cb(void* arg, spi_slave_hd_event_t* ev, BaseType_t* awoken)
{
    TEST_ASSERT_EQUAL(SPI_EV_BUF_RX, ev->event);
    testhd_context_t* ctx = (testhd_context_t*)arg;
    BaseType_t r = xSemaphoreGiveFromISR(ctx->ev_wrbuf, awoken);
    TEST_ASSERT_TRUE(r);
    return true;
}

bool rdbuf_cb(void* arg, spi_slave_hd_event_t* ev, BaseType_t* awoken)
{
    TEST_ASSERT_EQUAL(SPI_EV_BUF_TX, ev->event);
    testhd_context_t* ctx = (testhd_context_t*)arg;
    BaseType_t r = xSemaphoreGiveFromISR(ctx->ev_rdbuf, awoken);
    TEST_ASSERT_TRUE(r);
    return true;
}

static void test_hd_start(spi_device_handle_t *spi, int freq, const spitest_param_set_t* cfg, testhd_context_t* ctx)
{
    init_master_hd(spi, cfg, freq);

    spi_slave_hd_callback_config_t callback = {
        .cb_buffer_rx = wrbuf_cb,
        .cb_buffer_tx = rdbuf_cb,
        .arg = ctx,
    };
    init_slave_hd(cfg->mode, &callback);

    //when test with single board via same set of mosi, miso, clk and cs pins.
    config_single_board_test_pin();

    wait_wrbuf_sig(ctx, 0);
    wait_rdbuf_sig(ctx, 0);
    check_no_rx(ctx);
    check_no_tx(ctx);


    srand(9322);
    for (int i = 0; i < TEST_DMA_MAX_SIZE; i++) ctx->slave_rddma_buf[i] = rand();
    for (int i = 0; i < TEST_DMA_MAX_SIZE; i++) ctx->master_wrdma_buf[i] = rand();

    int pos  = rand() % TEST_DMA_MAX_SIZE;
    int len = rand() % TEST_DMA_MAX_SIZE + 1;
    if (pos + len > TEST_DMA_MAX_SIZE) len = TEST_DMA_MAX_SIZE - pos;

    ESP_LOGI("rddma_load_len", "%d", len);
    ctx->tx_data = (spi_slave_hd_data_t) {
        .data = &ctx->slave_rddma_buf[pos],
        .len = len,
    };
    esp_err_t err = spi_slave_hd_queue_trans(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_TX, &ctx->tx_data, portMAX_DELAY);
    TEST_ESP_OK(err);

    ctx->rx_data = (spi_slave_hd_data_t) {
        .data = ctx->slave_wrdma_buf,
        .len = TEST_DMA_MAX_SIZE,
    };
    err = spi_slave_hd_queue_trans(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_RX, &ctx->rx_data, portMAX_DELAY);
    TEST_ESP_OK(err);
}


#define REG_REGION_SIZE SOC_SPI_MAXIMUM_BUFFER_SIZE

void check_no_signal(testhd_context_t* context)
{
    vTaskDelay(1);
    TEST_ASSERT(wait_wrbuf_sig(context, 0) == ESP_ERR_TIMEOUT);
    TEST_ASSERT(wait_rdbuf_sig(context, 0) == ESP_ERR_TIMEOUT);
    check_no_rx(context);
    check_no_tx(context);
}

void test_wrdma(testhd_context_t* ctx, const spitest_param_set_t *cfg, spi_device_handle_t spi)
{
    int pos = rand() % TEST_DMA_MAX_SIZE;
    int len = rand() % TEST_DMA_MAX_SIZE+1;
    if (pos+len > TEST_DMA_MAX_SIZE) len = TEST_DMA_MAX_SIZE - pos;

    int test_seg_size = len;//TEST_SEG_SIZE;
    ESP_LOGW("test_wrdma", "len: %d, seg_size: %d\n", len, test_seg_size);
    TEST_ESP_OK(essl_spi_wrdma(spi, &ctx->master_wrdma_buf[pos], len, test_seg_size, get_hd_flags()));

    spi_slave_hd_data_t* ret_trans;
    esp_err_t ret = spi_slave_hd_get_trans_res(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_RX, &ret_trans, portMAX_DELAY);
    TEST_ESP_OK(ret);
    TEST_ASSERT_EQUAL(&ctx->rx_data, ret_trans);
    TEST_ASSERT_EQUAL(len, ret_trans->trans_len);

    TEST_ASSERT_EQUAL_HEX8_ARRAY(&ctx->master_wrdma_buf[pos], ctx->slave_wrdma_buf, len);

    ctx->rx_data = (spi_slave_hd_data_t) {
        .data = ctx->slave_wrdma_buf,
        .len = TEST_DMA_MAX_SIZE,
    };
    esp_err_t err = spi_slave_hd_queue_trans(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_RX, &ctx->rx_data, portMAX_DELAY);
    TEST_ESP_OK(err);
}

void test_rddma(testhd_context_t* ctx, const spitest_param_set_t* cfg, spi_device_handle_t spi)
{
    uint8_t* data_expected = ctx->tx_data.data;
    int len;
    int test_seg_size;


    len = ctx->tx_data.len;
    test_seg_size = TEST_SEG_SIZE;

    ESP_LOGW("test_rddma", "pos: %d, len: %d, slave_tx: %d, seg_size: %d\n", data_expected - ctx->slave_rddma_buf, len, ctx->tx_data.len, test_seg_size);

    TEST_ESP_OK(essl_spi_rddma(spi, ctx->master_rddma_buf, len, test_seg_size, get_hd_flags()));

    spi_slave_hd_data_t* ret_trans;
    esp_err_t ret = spi_slave_hd_get_trans_res(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_TX, &ret_trans, portMAX_DELAY);
    TEST_ESP_OK(ret);
    TEST_ASSERT_EQUAL(&ctx->tx_data, ret_trans);

    spitest_cmp_or_dump(data_expected, ctx->master_rddma_buf, len);

    int pos = rand() % TEST_DMA_MAX_SIZE;
    len = rand() % TEST_DMA_MAX_SIZE+1;
    if (pos + len > TEST_DMA_MAX_SIZE) len = TEST_DMA_MAX_SIZE - pos;

    ctx->tx_data = (spi_slave_hd_data_t) {
        .data = &ctx->slave_rddma_buf[pos],
        .len = len,
    };
    esp_err_t err = spi_slave_hd_queue_trans(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_TX, &ctx->tx_data, portMAX_DELAY);
    TEST_ESP_OK(err);
}

static void test_hd_loop(const void* arg1, void* arg2)
{
    const spitest_param_set_t *test_cfg = arg1;
    testhd_context_t *context = arg2;
    const int *timing_speed_array = test_cfg->freq_list;

    ESP_LOGI(MASTER_TAG, "****************** %s ***************", test_cfg->pset_name);
    for (int j = 0; ; j++) {
        spi_device_handle_t spi;
        const int freq = timing_speed_array[j];
        if (freq==0) break;
        if (test_cfg->freq_limit && freq > test_cfg->freq_limit) break;

        ESP_LOGI(MASTER_TAG, "======> %dk", freq / 1000);

        test_hd_start(&spi, freq, test_cfg, context);

        uint8_t* mem_ptr;
        uint8_t slave_mem[REG_REGION_SIZE];
        uint8_t recv_buffer[REG_REGION_SIZE];

        srand(123);
        uint32_t mem[(REG_REGION_SIZE/4)];
        for (int i = 0; i < (REG_REGION_SIZE/4); i++) {
            mem[i] = rand();
        }
        mem_ptr = (uint8_t*)mem;

        check_no_signal(context);

        spi_slave_hd_write_buffer(TEST_SLAVE_HOST, 0, (uint8_t *) mem, SOC_SPI_MAXIMUM_BUFFER_SIZE);

        srand(123);
        for (int i = 0; i < (REG_REGION_SIZE/4); i++) {
            TEST_ASSERT(mem[i] == rand());
        }
        check_no_signal(context);
        test_rddma(context, test_cfg, spi);

        for (int i = 0; i < 128; i ++) {
            int pos = rand()%REG_REGION_SIZE;
            int len = rand()%REG_REGION_SIZE+1;
            if (len+pos>REG_REGION_SIZE) len = REG_REGION_SIZE-pos;

            memset(recv_buffer, 0xcc, sizeof(recv_buffer));

            check_no_signal(context);
            test_wrdma(context, test_cfg, spi);
            check_no_signal(context);
            test_rddma(context, test_cfg, spi);

            check_no_signal(context);
            TEST_ESP_OK(essl_spi_rdbuf(spi, recv_buffer, pos, len, get_hd_flags()));
            wait_rdbuf_sig(context, portMAX_DELAY);

            ESP_LOGI("mem", "pos: %d, len: %d", pos, len);
            // ESP_LOG_BUFFER_HEX("recv_buffer", recv_buffer, len);
            // ESP_LOG_BUFFER_HEX("mem", &mem_ptr[pos], len);
            TEST_ASSERT_EQUAL_HEX8_ARRAY(&mem_ptr[pos], recv_buffer, len);
        }

        check_no_signal(context);

        //clear slave buffer
        memset(mem, 0xcc, REG_REGION_SIZE);
        memcpy(slave_mem, mem, REG_REGION_SIZE);

        TEST_ESP_OK(essl_spi_wrbuf(spi, mem_ptr, 0, REG_REGION_SIZE, get_hd_flags()));
        wait_wrbuf_sig(context, portMAX_DELAY);

        TEST_ESP_OK(essl_spi_rdbuf(spi, recv_buffer, 0, REG_REGION_SIZE, get_hd_flags()));
        wait_rdbuf_sig(context, portMAX_DELAY);

        TEST_ASSERT_EQUAL_HEX8_ARRAY(slave_mem, recv_buffer, REG_REGION_SIZE);

        srand(466);
        for (int i = 0; i < 64; i ++) {
            ESP_LOGI("temp_i", "^^^^^^^^^^^^^^^^ %d ^^^^^^^^^^", i);
            for (int j = 0; j < (REG_REGION_SIZE/4); j++) {
                mem[j] = rand();
            }
            for (int k = 0; k < 2; k++) {
                int pos = rand() % REG_REGION_SIZE;
                int len = rand() % REG_REGION_SIZE + 1;
                if (len + pos > REG_REGION_SIZE) len = REG_REGION_SIZE - pos;

                printf("pos: %d, len: %d\n", pos, len);

                TEST_ESP_OK(essl_spi_wrbuf(spi, &mem_ptr[pos], pos, len, get_hd_flags()));
                wait_wrbuf_sig(context, portMAX_DELAY);
                memcpy(&slave_mem[pos], &mem_ptr[pos], len);
            }

            check_no_signal(context);
            test_rddma(context, test_cfg, spi);

            check_no_signal(context);
            test_wrdma(context, test_cfg, spi);

            TEST_ESP_OK(essl_spi_rdbuf(spi, recv_buffer, 0, REG_REGION_SIZE, get_hd_flags()));

            wait_rdbuf_sig(context, portMAX_DELAY);

            check_no_signal(context);

            TEST_ASSERT_EQUAL_HEX8_ARRAY(&slave_mem, recv_buffer, REG_REGION_SIZE);
        }

        master_free_device_bus(spi);
        spi_slave_hd_deinit(TEST_SLAVE_HOST);
    }
}

static const ptest_func_t hd_test_func = {
    .pre_test = test_hd_init,
    .post_test = test_hd_deinit,
    .loop = test_hd_loop,
    .def_param = spitest_def_param,
};

#define TEST_SPI_HD(name, test_set) \
    PARAM_GROUP_DECLARE(name, test_set) \
    TEST_SINGLE_BOARD(name, test_set, "[spi][timeout=120]", &hd_test_func)

static int test_freq_hd[] = {
    // 100*1000,
    // SPI_MASTER_FREQ_10M, //maximum freq MISO stable before next latch edge
    // SPI_MASTER_FREQ_20M, //maximum freq MISO stable before next latch edge
    SPI_MASTER_FREQ_40M, //maximum freq MISO stable before next latch edge
    0,
};

#define TEST_HD_IN_CONTINUOUS_MODE  true

static spitest_param_set_t hd_conf[] = {
    { .pset_name = "MODE0",
        .freq_list = test_freq_hd,
      .dup = FULL_DUPLEX,
      .master_iomux = false,
      .slave_iomux = false,
      .slave_tv_ns = TV_WITH_ESP_SLAVE,
      .mode = 0,
    },
    { .pset_name = "MODE1",
        .freq_list = test_freq_hd,
      .dup = FULL_DUPLEX,
      .master_iomux = false,
      .slave_iomux = false,
      .slave_tv_ns = TV_WITH_ESP_SLAVE,
      .mode = 1,
    },
    { .pset_name = "MODE2",
        .freq_list = test_freq_hd,
      .dup = FULL_DUPLEX,
      .master_iomux = false,
      .slave_iomux = false,
      .slave_tv_ns = TV_WITH_ESP_SLAVE,
      .mode = 2,
    },
    { .pset_name = "MODE3",
        .freq_list = test_freq_hd,
      .dup = FULL_DUPLEX,
      .master_iomux = false,
      .slave_iomux = false,
      .slave_tv_ns = TV_WITH_ESP_SLAVE,
      .mode = 3,
    },
};
TEST_SPI_HD(HD, hd_conf);

/*
 * When the previous transaction of master exceeds the length of slave prepared too long, the
 * interrupt of slave will be triggered in side that transaction. In the ISR slave has to prepare
 * for the next transaction, while the master is still sending the previous one.
 *
 * This test checks that the previous trans will not influence the data slave prepared for the next transaction.
 */
TEST_CASE("test spi slave hd segment mode, master too long", "[spi][spi_slv_hd]")
{
    spi_device_handle_t spi;
    spitest_param_set_t *cfg = &hd_conf[0];
    int freq = 100*1000; // the frequency should be small enough for the slave to prepare new trans

    init_master_hd(&spi, cfg, freq);

    //no callback needed
    init_slave_hd(cfg->mode, NULL);

    //Use GPIO matrix to connect signal of master and slave via same set of pins on one board.
    config_single_board_test_pin();

    const int send_buf_size = 1024;

    WORD_ALIGNED_ATTR uint8_t* slave_send_buf = malloc(send_buf_size * 2);
    WORD_ALIGNED_ATTR uint8_t* master_send_buf = malloc(send_buf_size * 2);
    WORD_ALIGNED_ATTR uint8_t* slave_recv_buf = malloc(send_buf_size * 2);
    WORD_ALIGNED_ATTR uint8_t* master_recv_buf = malloc(send_buf_size * 2);

    memset(slave_recv_buf, 0xcc, send_buf_size * 2);
    memset(master_recv_buf, 0xcc, send_buf_size * 2);
    srand (939);
    for (int i = 0; i< send_buf_size * 2; i++) {
        master_send_buf[i] = rand();
        slave_send_buf[i] = rand();
    }

    //make the first transaction short, so that the second one will be loaded while the master is
    //still doing the first transaction.
    int trans_len[] = {5, send_buf_size};
    spi_slave_hd_data_t slave_trans[4] = {
        //recv, the buffer size should be aligned to 4
        {
            .data = slave_recv_buf,
            .len = (trans_len[0] + 3) & (~3),
        },
        {
            .data = slave_recv_buf + send_buf_size,
            .len = (trans_len[1] + 3) & (~3),
        },
        //send
        {
            .data = slave_send_buf,
            .len = trans_len[0],
        },
        {
            .data = slave_send_buf + send_buf_size,
            .len = trans_len[1],
        },
    };

    for (int i = 0; i < 2; i ++) {
        TEST_ESP_OK(spi_slave_hd_queue_trans(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_RX, &slave_trans[i], portMAX_DELAY));
    }
    for (int i = 2; i < 4; i ++) {
        TEST_ESP_OK(spi_slave_hd_queue_trans(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_TX, &slave_trans[i], portMAX_DELAY));
    }

    essl_spi_wrdma(spi, master_send_buf, send_buf_size, -1, 0);
    essl_spi_wrdma(spi, master_send_buf + send_buf_size, send_buf_size, 5, 0);

    essl_spi_rddma(spi, master_recv_buf, send_buf_size, -1, 0);
    essl_spi_rddma(spi, master_recv_buf + send_buf_size, send_buf_size, 5, 0);

    for (int i = 0; i < 2; i ++) {
        spi_slave_hd_data_t *ret_trans;
        TEST_ESP_OK(spi_slave_hd_get_trans_res(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_RX, &ret_trans, portMAX_DELAY));
        TEST_ASSERT(ret_trans == &slave_trans[i]);
        TEST_ASSERT_EQUAL(slave_trans[i].len, ret_trans->trans_len);
    }

    for (int i = 2; i < 4; i ++) {
        spi_slave_hd_data_t *ret_trans;
        TEST_ESP_OK(spi_slave_hd_get_trans_res(TEST_SLAVE_HOST, SPI_SLAVE_CHAN_TX, &ret_trans, portMAX_DELAY));
        TEST_ASSERT(ret_trans == &slave_trans[i]);
    }

    spitest_cmp_or_dump(slave_send_buf, master_recv_buf, trans_len[0]);
    spitest_cmp_or_dump(slave_send_buf + send_buf_size, master_recv_buf + send_buf_size, trans_len[1]);

    spitest_cmp_or_dump(master_send_buf, slave_recv_buf, trans_len[0]);
    spitest_cmp_or_dump(master_send_buf + send_buf_size, slave_recv_buf + send_buf_size, trans_len[1]);

    free(master_recv_buf);
    free(slave_recv_buf);
    free(master_send_buf);
    free(slave_send_buf);
    spi_slave_hd_deinit(TEST_SLAVE_HOST);
    master_free_device_bus(spi);
}

#endif  //SOC_SPI_SUPPORT_SLAVE_HD_VER2

#endif  //#if !DISABLED_FOR_TARGETS(ESP32C3)