mirror of https://github.com/ARMmbed/mbed-os.git
120 lines
3.8 KiB
C
120 lines
3.8 KiB
C
/* mbed Microcontroller Library
|
|
* Copyright (c) 2006-2013 ARM Limited
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "hal/gpio_api.h"
|
|
#include "platform/mbed_wait_api.h"
|
|
#include "platform/mbed_toolchain.h"
|
|
#include "platform/mbed_interface.h"
|
|
#include "platform/mbed_retarget.h"
|
|
#include "platform/mbed_critical.h"
|
|
|
|
WEAK MBED_NORETURN void mbed_die(void)
|
|
{
|
|
#if !defined (NRF51_H) && !defined(TARGET_EFM32)
|
|
core_util_critical_section_enter();
|
|
#endif
|
|
gpio_t led_err;
|
|
gpio_init_out(&led_err, LED1);
|
|
|
|
while (1) {
|
|
for (int i = 0; i < 4; ++i) {
|
|
gpio_write(&led_err, 1);
|
|
wait_us(150000);
|
|
gpio_write(&led_err, 0);
|
|
wait_us(150000);
|
|
}
|
|
|
|
for (int i = 0; i < 4; ++i) {
|
|
gpio_write(&led_err, 1);
|
|
wait_us(400000);
|
|
gpio_write(&led_err, 0);
|
|
wait_us(400000);
|
|
}
|
|
}
|
|
}
|
|
|
|
void mbed_error_printf(const char *format, ...)
|
|
{
|
|
va_list arg;
|
|
va_start(arg, format);
|
|
mbed_error_vprintf(format, arg);
|
|
va_end(arg);
|
|
}
|
|
|
|
void mbed_error_vprintf(const char *format, va_list arg)
|
|
{
|
|
char buffer[132];
|
|
int size = vsnprintf(buffer, sizeof buffer, format, arg);
|
|
if ((unsigned int)size >= sizeof buffer) {
|
|
/* Output was truncated - indicate by overwriting tail of buffer
|
|
* with ellipsis, newline and null terminator.
|
|
*/
|
|
static const char ellipsis[] = "...\n";
|
|
memcpy(&buffer[sizeof buffer - sizeof ellipsis], ellipsis, sizeof ellipsis);
|
|
}
|
|
if (size > 0) {
|
|
mbed_error_puts(buffer);
|
|
}
|
|
}
|
|
|
|
void mbed_error_puts(const char *str)
|
|
{
|
|
// Writing the string to the console in a critical section is
|
|
// potentially beneficial - for example in UARTSerial it
|
|
// forces the "unbuffered" mode that makes sure all characters
|
|
// go out now. If we made the call not in a critical section,
|
|
// it would go to the software buffer and we would be reliant
|
|
// on platform.stdio-flush-at-exit forcing a fsync before
|
|
// entering mbed_die().
|
|
//
|
|
// But this may be the very first write to the console, and hence
|
|
// require it to be initialized - doing this in a critical
|
|
// section could be problematic. So we prime it outside the
|
|
// critical section with a zero-length write - this forces
|
|
// the initialization.
|
|
//
|
|
// It's still possible that we were in a critical section
|
|
// or interrupt on entry anyway (eg if this is an error coming
|
|
// from inside RTX), so in other areas of the system we suppress
|
|
// things like mutex creation asserts and RTX traps while
|
|
// an error is in progress, so that console initialization
|
|
// may work.
|
|
write(STDERR_FILENO, str, 0);
|
|
|
|
core_util_critical_section_enter();
|
|
#if MBED_CONF_PLATFORM_STDIO_CONVERT_NEWLINES || MBED_CONF_PLATFORM_STDIO_CONVERT_TTY_NEWLINES
|
|
char stdio_out_prev = '\0';
|
|
for (; *str != '\0'; str++) {
|
|
if (*str == '\n' && stdio_out_prev != '\r') {
|
|
const char cr = '\r';
|
|
write(STDERR_FILENO, &cr, 1);
|
|
}
|
|
write(STDERR_FILENO, str, 1);
|
|
stdio_out_prev = *str;
|
|
}
|
|
#else
|
|
write(STDERR_FILENO, str, strlen(str));
|
|
#endif
|
|
core_util_critical_section_exit();
|
|
}
|
|
|
|
void mbed_error_vfprintf(const char *format, va_list arg)
|
|
{
|
|
mbed_error_vprintf(format, arg);
|
|
}
|