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/* Copyright 2021 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <stddef.h>
#include "common.h"
#include "printf.h"
#include "uart.h"
static int __tx_char(void *context, int c)
{
/*
* Translate '\n' to '\r\n', bypass on Zephyr because printk also
* does this translation.
*/
if (!IS_ENABLED(CONFIG_ZEPHYR) && c == '\n' &&
uart_tx_char_raw(context, '\r'))
return 1;
return uart_tx_char_raw(context, c);
}
int uart_putc(int c)
{
int rv = __tx_char(NULL, c);
uart_tx_start();
return rv ? EC_ERROR_OVERFLOW : EC_SUCCESS;
}
int uart_puts(const char *outstr)
{
/* Put all characters in the output buffer */
while (*outstr) {
if (__tx_char(NULL, *outstr++) != 0)
break;
}
uart_tx_start();
/* Successful if we consumed all output */
return *outstr ? EC_ERROR_OVERFLOW : EC_SUCCESS;
}
int uart_put(const char *out, int len)
{
/* Put all characters in the output buffer */
while (len--) {
if (__tx_char(NULL, *out++) != 0)
break;
}
uart_tx_start();
/* Successful if we consumed all output */
return len ? EC_ERROR_OVERFLOW : EC_SUCCESS;
}
int uart_put_raw(const char *out, int len)
{
/* Put all characters in the output buffer */
while (len--) {
if (uart_tx_char_raw(NULL, *out++) != 0)
break;
}
uart_tx_start();
/* Successful if we consumed all output */
return len ? EC_ERROR_OVERFLOW : EC_SUCCESS;
}
int uart_vprintf(const char *format, va_list args)
{
int rv = vfnprintf(__tx_char, NULL, format, args);
uart_tx_start();
return rv;
}
int uart_printf(const char *format, ...)
{
int rv;
va_list args;
va_start(args, format);
rv = uart_vprintf(format, args);
va_end(args);
return rv;
}
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