kopia lustrzana https://github.com/espressif/esp-idf
254 wiersze
9.1 KiB
C
254 wiersze
9.1 KiB
C
/*
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* SPDX-FileCopyrightText: 2021-2024 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 "test_spi_utils.h"
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#include "driver/spi_slave.h"
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#include "esp_log.h"
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#include "driver/gpio.h"
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#include "esp_private/gpio.h"
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#include "hal/gpio_hal.h"
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#include "esp_rom_gpio.h"
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int test_freq_default[] = TEST_FREQ_DEFAULT();
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const char MASTER_TAG[] = "test_master";
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const char SLAVE_TAG[] = "test_slave";
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DRAM_ATTR uint8_t spitest_master_send[] = {
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0x93, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0, 0xaa, 0xcc, 0xff, 0xee, 0x55, 0x77, 0x88, 0x43,
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0x74,
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0x93, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0, 0xaa, 0xcc, 0xff, 0xee, 0x55, 0x77, 0x88, 0x43,
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0x74,
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0x93, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0, 0xaa, 0xcc, 0xff, 0xee, 0x55, 0x77, 0x88, 0x43,
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0x74,
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};
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DRAM_ATTR uint8_t spitest_slave_send[] = {
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0xaa, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x13, 0x57, 0x9b, 0xdf, 0x24, 0x68, 0xac, 0xe0,
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0xda,
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0xaa, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x13, 0x57, 0x9b, 0xdf, 0x24, 0x68, 0xac, 0xe0,
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0xda,
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0xaa, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10, 0x13, 0x57, 0x9b, 0xdf, 0x24, 0x68, 0xac, 0xe0,
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0xda,
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};
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void spitest_def_param(void* arg)
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{
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spitest_param_set_t *param_set = (spitest_param_set_t*)arg;
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param_set->test_size = 8;
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if (param_set->freq_list == NULL) {
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param_set->freq_list = test_freq_default;
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}
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}
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/**********************************************************************************
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* functions for slave task
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*********************************************************************************/
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esp_err_t init_slave_context(spi_slave_task_context_t *context, spi_host_device_t host)
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{
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context->data_to_send = xQueueCreate(16, sizeof(slave_txdata_t));
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if (context->data_to_send == NULL) {
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return ESP_ERR_NO_MEM;
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}
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context->data_received = xRingbufferCreate(1024, RINGBUF_TYPE_NOSPLIT);
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if (context->data_received == NULL) {
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return ESP_ERR_NO_MEM;
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}
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context->spi = host;
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return ESP_OK;
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}
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void deinit_slave_context(spi_slave_task_context_t *context)
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{
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TEST_ASSERT(context->data_to_send != NULL);
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vQueueDelete(context->data_to_send);
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context->data_to_send = NULL;
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TEST_ASSERT(context->data_received != NULL);
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vRingbufferDelete(context->data_received);
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context->data_received = NULL;
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}
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/* The task requires a queue and a ringbuf, which should be initialized before task starts.
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Send ``slave_txdata_t`` to the queue to make the task send data;
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the task returns data got to the ringbuf, which should have sufficient size.
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*/
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void spitest_slave_task(void* arg)
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{
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spi_slave_task_context_t* context = (spi_slave_task_context_t*) arg;
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QueueHandle_t queue = context->data_to_send;
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RingbufHandle_t ringbuf = context->data_received;
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uint8_t recvbuf[320 + 8];
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slave_txdata_t txdata;
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ESP_LOGI(SLAVE_TAG, "slave up");
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//never quit, but blocked by the queue, waiting to be killed, when no more send from main task.
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while (1) {
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BaseType_t ret = xQueueReceive(queue, &txdata, portMAX_DELAY);
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assert(ret);
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spi_slave_transaction_t t = {};
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t.length = txdata.len;
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t.tx_buffer = txdata.start;
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t.rx_buffer = recvbuf + 8;
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//loop until trans_len != 0 to skip glitches
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do {
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TEST_ESP_OK(spi_slave_transmit(context->spi, &t, portMAX_DELAY));
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} while (t.trans_len <= 2);
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memcpy(recvbuf, &t.trans_len, sizeof(uint32_t));
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*(uint8_t**)(recvbuf + 4) = (uint8_t*)txdata.start;
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ESP_LOGD(SLAVE_TAG, "received: %" PRIu32, (uint32_t)t.trans_len);
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xRingbufferSend(ringbuf, recvbuf, 8 + (t.trans_len + 7) / 8, portMAX_DELAY);
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}
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}
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void slave_pull_up(const spi_bus_config_t* cfg, int spics_io_num)
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{
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gpio_set_pull_mode(cfg->mosi_io_num, GPIO_PULLUP_ONLY);
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gpio_set_pull_mode(cfg->sclk_io_num, GPIO_PULLUP_ONLY);
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gpio_set_pull_mode(spics_io_num, GPIO_PULLUP_ONLY);
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}
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/**********************************************************************************
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* functions for slave task
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*********************************************************************************/
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static int test_len[] = {1, 3, 5, 7, 9, 11, 33, 64};
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void spitest_init_transactions(const spitest_param_set_t *cfg, spitest_context_t* context)
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{
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spi_transaction_t* trans = context->master_trans;
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uint8_t *rx_buf_ptr = context->master_rxbuf;
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const spi_dup_t dup = cfg->dup;
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for (int i = 0; i < cfg->test_size; i++) {
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const void* tx_buffer = spitest_master_send + i % 8;
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int length = 8 * test_len[i];
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if (cfg->length_aligned) {
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length = (length + 31) & (~31);
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}
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if (dup == HALF_DUPLEX_MISO) {
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trans[i] = (spi_transaction_t) {
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.rx_buffer = rx_buf_ptr,
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.rxlength = length,
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};
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} else if (dup == HALF_DUPLEX_MOSI) {
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trans[i] = (spi_transaction_t) {
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.tx_buffer = tx_buffer,
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.length = length,
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};
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} else {
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trans[i] = (spi_transaction_t) {
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.tx_buffer = tx_buffer,
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.length = length,
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.rx_buffer = rx_buf_ptr,
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};
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}
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rx_buf_ptr = (uint8_t*)((uint32_t)(rx_buf_ptr + (length + 7) / 8 + 3) & (~3));
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const void* slave_tx = spitest_slave_send + (cfg->slave_unaligned_addr ? i % 3 : (i % 3) * 4);
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//prepare slave tx data
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context->slave_trans[i] = (slave_txdata_t) {
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.start = slave_tx,
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.len = 512,
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};
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if (cfg->slave_dma_chan != 0) {
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context->slave_trans[i].len = 1024;
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}
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}
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}
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void spitest_master_print_data(spi_transaction_t *t, int rxlength)
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{
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if (t->tx_buffer) {
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ESP_LOG_BUFFER_HEX("master tx", t->tx_buffer, t->length / 8);
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}
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if (t->rx_buffer) {
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ESP_LOG_BUFFER_HEX("master rx", t->rx_buffer, rxlength / 8);
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}
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}
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void spitest_slave_print_data(slave_rxdata_t *t, bool print_rxdata)
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{
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int rcv_len = (t->len + 7) / 8;
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ESP_LOGI(SLAVE_TAG, "trans_len: %" PRIu32, t->len);
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ESP_LOG_BUFFER_HEX("slave tx", t->tx_start, rcv_len);
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if (print_rxdata) {
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ESP_LOG_BUFFER_HEX("slave rx", t->data, rcv_len);
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}
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}
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esp_err_t spitest_check_data(int len, spi_transaction_t *master_t, slave_rxdata_t *slave_t, bool check_master_data, bool check_slave_len, bool check_slave_data)
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{
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esp_err_t ret = ESP_OK;
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uint32_t rcv_len = slave_t->len;
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//currently the rcv_len can be in range of [t->length-1, t->length+3]
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if (check_slave_len &&
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(rcv_len < len - 1 || rcv_len > len + 4)) {
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ret = ESP_FAIL;
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}
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if (check_master_data &&
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memcmp(slave_t->tx_start, master_t->rx_buffer, (len + 7) / 8) != 0) {
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ret = ESP_FAIL;
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}
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if (check_slave_data &&
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memcmp(master_t->tx_buffer, slave_t->data, (len + 7) / 8) != 0) {
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ret = ESP_FAIL;
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}
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if (ret != ESP_OK) {
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ESP_LOGI(SLAVE_TAG, "slave_recv_len: %" PRIu32, rcv_len);
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spitest_master_print_data(master_t, len);
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spitest_slave_print_data(slave_t, true);
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//already failed, try to use the TEST_ASSERT to output the reason...
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if (check_slave_len) {
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TEST_ASSERT(rcv_len >= len - 1 && rcv_len <= len + 4);
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}
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TEST_ASSERT_EQUAL_HEX8_ARRAY(slave_t->tx_start, master_t->rx_buffer, (len + 7) / 8);
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TEST_ASSERT_EQUAL_HEX8_ARRAY(master_t->tx_buffer, slave_t->data, (len + 7) / 8);
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}
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return ESP_OK;
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}
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void master_free_device_bus(spi_device_handle_t spi)
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{
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TEST_ESP_OK(spi_bus_remove_device(spi));
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TEST_ESP_OK(spi_bus_free(TEST_SPI_HOST));
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}
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void spitest_gpio_output_sel(uint32_t gpio_num, int func, uint32_t signal_idx)
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{
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gpio_func_sel(gpio_num, func);
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esp_rom_gpio_connect_out_signal(gpio_num, signal_idx, 0, 0);
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}
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void spitest_gpio_input_sel(uint32_t gpio_num, int func, uint32_t signal_idx)
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{
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gpio_func_sel(gpio_num, func);
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esp_rom_gpio_connect_in_signal(gpio_num, signal_idx, 0);
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}
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//Note this cs_num is the ID of the connected devices' ID, e.g. if 2 devices are connected to the bus,
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//then the cs_num of the 1st and 2nd devices are 0 and 1 respectively.
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void same_pin_func_sel(spi_bus_config_t bus, spi_device_interface_config_t dev, uint8_t cs_num)
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{
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spitest_gpio_output_sel(bus.mosi_io_num, FUNC_GPIO, spi_periph_signal[TEST_SPI_HOST].spid_out);
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spitest_gpio_input_sel(bus.mosi_io_num, FUNC_GPIO, spi_periph_signal[TEST_SLAVE_HOST].spid_in);
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spitest_gpio_output_sel(bus.miso_io_num, FUNC_GPIO, spi_periph_signal[TEST_SLAVE_HOST].spiq_out);
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spitest_gpio_input_sel(bus.miso_io_num, FUNC_GPIO, spi_periph_signal[TEST_SPI_HOST].spiq_in);
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spitest_gpio_output_sel(dev.spics_io_num, FUNC_GPIO, spi_periph_signal[TEST_SPI_HOST].spics_out[cs_num]);
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spitest_gpio_input_sel(dev.spics_io_num, FUNC_GPIO, spi_periph_signal[TEST_SLAVE_HOST].spics_in);
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spitest_gpio_output_sel(bus.sclk_io_num, FUNC_GPIO, spi_periph_signal[TEST_SPI_HOST].spiclk_out);
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spitest_gpio_input_sel(bus.sclk_io_num, FUNC_GPIO, spi_periph_signal[TEST_SLAVE_HOST].spiclk_in);
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#if CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3
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GPIO.func_in_sel_cfg[FSPIQ_IN_IDX].sig_in_sel = 1;
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#endif
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}
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