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serial: merge serial check signo to one place

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Signed-off-by: ligd <liguiding1@xiaomi.com>
This commit is contained in:
ligd
2021-12-20 17:44:08 +08:00
committed by Petro Karashchenko
parent 065553e59b
commit 5a0ab205ca
4 changed files with 96 additions and 145 deletions
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include/nuttx/serial/serial.h
+15 -5
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@@ -496,16 +496,26 @@ void uart_recvchars_done(FAR uart_dev_t *dev);
void uart_reset_sem(FAR uart_dev_t *dev);
/****************************************************************************
* Name: uart_lanch
* Name: uart_check_special
*
* Description:
* This function is called when user want lanch a new program by
* using a special char.
* Check if the SIGINT or SIGTSTP character is in the contiguous Rx DMA
* buffer region. The first signal associated with the first such
* character is returned.
*
* If there multiple such characters in the buffer, only the signal
* associated with the first is returned (this a bug!)
*
* Returned Value:
* 0 if a signal-related character does not appear in the. Otherwise,
* SIGKILL or SIGTSTP may be returned to indicate the appropriate signal
* action.
*
****************************************************************************/
#ifdef CONFIG_TTY_LAUNCH
void uart_launch(void);
#if defined(CONFIG_TTY_SIGINT) || defined(CONFIG_TTY_SIGTSTP) || \
defined(CONFIG_TTY_FORCE_PANIC) || defined(CONFIG_TTY_LAUNCH)
int uart_check_special(FAR uart_dev_t *dev, const char *buf, size_t size);
#endif
#undef EXTERN