esp-idf/components/unity/unity_port_esp32.c

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/*
* SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <string.h>
#include <stdbool.h>
#include "unity.h"
#include "sdkconfig.h"
#include "hal/cpu_hal.h"
#include "esp_rom_uart.h"
#include "esp_private/esp_clk.h"
static uint32_t s_test_start, s_test_stop;
void unity_putc(int c)
{
if (c == '\n') {
esp_rom_uart_tx_one_char('\r');
esp_rom_uart_tx_one_char('\n');
} else if (c == '\r') {
} else {
esp_rom_uart_tx_one_char(c);
}
}
void unity_flush(void)
{
esp_rom_uart_tx_wait_idle(CONFIG_ESP_CONSOLE_UART_NUM);
}
#define iscontrol(c) ((c) <= '\x1f' || (c) == '\x7f')
static void esp_unity_readline(char* dst, size_t len)
{
/* Read line from console with support for echoing and backspaces */
size_t write_index = 0;
for (;;) {
char c = 0;
bool got_char = esp_rom_uart_rx_one_char((uint8_t*)&c) == 0;
if (!got_char) {
continue;
}
if (c == '\r' || c == '\n') {
/* Add null terminator and return on newline */
unity_putc('\n');
dst[write_index] = '\0';
return;
} else if (c == '\b') {
if (write_index > 0) {
/* Delete previously entered character */
write_index--;
esp_rom_uart_tx_one_char('\b');
esp_rom_uart_tx_one_char(' ');
esp_rom_uart_tx_one_char('\b');
}
} else if (len > 0 && write_index < len - 1 && !iscontrol(c)) {
/* Write a max of len - 1 characters to allow for null terminator */
unity_putc(c);
dst[write_index++] = c;
}
}
}
/* To start a unit test from a GDB session without console input,
* - set a break at unity_gets ('hb unity_gets')
* - resume the program ('c')
* - modify this value to the desired command line ('set {char[64]} unity_input_from_gdb = "5"')
* - optionally set a break point in the test being debugged
* - resume the program ('c')
*/
char unity_input_from_gdb[64];
void unity_gets(char *dst, size_t len)
{
size_t unity_input_from_gdb_len = strlen(unity_input_from_gdb);
if (unity_input_from_gdb_len > 0 && unity_input_from_gdb_len < len - 1) {
memcpy(dst, unity_input_from_gdb, unity_input_from_gdb_len);
dst[unity_input_from_gdb_len] = '\n';
dst[unity_input_from_gdb_len + 1] = 0;
memset(unity_input_from_gdb, 0, sizeof(unity_input_from_gdb));
return;
}
/* Flush anything already in the RX buffer */
uint8_t ignore;
while (esp_rom_uart_rx_one_char(&ignore) == 0) { }
/* Read input */
esp_unity_readline(dst, len);
}
void unity_exec_time_start(void)
{
s_test_start = cpu_hal_get_cycle_count();
}
void unity_exec_time_stop(void)
{
s_test_stop = cpu_hal_get_cycle_count();
}
uint32_t unity_exec_time_get_ms(void)
{
return (s_test_stop - s_test_start) / (esp_clk_cpu_freq() / 1000);
}