kopia lustrzana https://github.com/espressif/esp-idf
89 wiersze
2.6 KiB
C
89 wiersze
2.6 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 "sdkconfig.h"
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#include "unity.h"
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#include "driver/uart.h"
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#include "esp_pm.h"
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#include "esp_log.h"
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#include "test_common.h"
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#include "esp_private/sleep_cpu.h" //for sleep_cpu_configure
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#define UART_TAG "Uart"
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#define TEST_BUF_SIZE 256
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//This should be larger than FIFO_SIZE + 2 * TEST_DRIVER_BUF_SIZE, so that blocking will happen
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#define TEST_WRITE_SIZE 1024
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#define TEST_RTS UART_PIN_NO_CHANGE
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#define TEST_CTS UART_PIN_NO_CHANGE
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#define TEST_UART_BAUD_RATE 115200
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#define MAX_FREQ (CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ)
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#if CONFIG_XTAL_FREQ_40
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#define MIN_FREQ 10
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#elif CONFIG_XTAL_FREQ_48
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#define MIN_FREQ 12
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#elif CONFIG_XTAL_FREQ_32
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#define MIN_FREQ 8
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#elif CONFIG_XTAL_FREQ_26
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#define MIN_FREQ 13
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#endif
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TEST_CASE("uart tx won't be blocked by auto light sleep", "[uart]")
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{
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uart_port_param_t port_param = {};
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TEST_ASSERT(port_select(&port_param));
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uart_port_t port_num = port_param.port_num;
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// Configure dynamic frequency scaling:
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// maximum and minimum frequencies are set in sdkconfig,
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// automatic light sleep is enabled if tickless idle support is enabled.
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esp_pm_config_t pm_config = {
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.max_freq_mhz = MAX_FREQ,
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.min_freq_mhz = MIN_FREQ,
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#if CONFIG_FREERTOS_USE_TICKLESS_IDLE
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.light_sleep_enable = true
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#endif
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};
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TEST_ESP_OK(esp_pm_configure(&pm_config));
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uart_config_t uart_config = {
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.baud_rate = TEST_UART_BAUD_RATE,
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.data_bits = UART_DATA_8_BITS,
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.parity = UART_PARITY_DISABLE,
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.stop_bits = UART_STOP_BITS_1,
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.flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
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.source_clk = port_param.default_src_clk,
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};
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int intr_alloc_flags = 0;
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TEST_ESP_OK(uart_driver_install(port_num, TEST_BUF_SIZE, 0, 0, NULL, intr_alloc_flags));
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TEST_ESP_OK(uart_param_config(port_num, &uart_config));
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TEST_ESP_OK(uart_set_pin(port_num, port_param.tx_pin_num, port_param.rx_pin_num, TEST_RTS, TEST_CTS));
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// Configure a temporary buffer for the incoming data
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const int len = TEST_WRITE_SIZE;
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uint8_t *data = (uint8_t *) malloc(len);
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//If auto lightsleep happen, there will be deadlock in either one of the two following functions
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uart_write_bytes(port_num, (const char *) data, len);
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uart_wait_tx_done(port_num, portMAX_DELAY);
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ESP_LOGI(UART_TAG, "return from uart_write_bytes");
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uart_driver_delete(port_num);
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free(data);
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#if CONFIG_FREERTOS_USE_TICKLESS_IDLE
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pm_config.light_sleep_enable = false;
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TEST_ESP_OK(esp_pm_configure(&pm_config));
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#endif
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}
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