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serial: add CONFIG_TTY_LAUNCH support

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this allow user start new program from tty

Signed-off-by: ligd <liguiding1@xiaomi.com>
This commit is contained in:
ligd
2021-12-15 13:40:45 +08:00
committed by Xiang Xiao
parent cff2bc05e0
commit 75aec04330
7 changed files with 200 additions and 3 deletions
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drivers/serial/serial_dma.c
+11 -3
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@@ -57,7 +57,7 @@
****************************************************************************/
#if defined(CONFIG_TTY_SIGINT) || defined(CONFIG_TTY_SIGTSTP) || \
defined(CONFIG_TTY_FORCE_PANIC)
defined(CONFIG_TTY_FORCE_PANIC) || defined(CONFIG_TTY_LAUNCH)
static int uart_check_signo(int pid, const char *buf, size_t size)
{
size_t i;
@@ -72,6 +72,14 @@ static int uart_check_signo(int pid, const char *buf, size_t size)
}
#endif
#ifdef CONFIG_TTY_LAUNCH
if (buf[i] == CONFIG_TTY_LAUNCH_CHAR)
{
uart_launch();
return 0;
}
#endif
#ifdef CONFIG_TTY_SIGINT
if (pid > 0 && buf[i] == CONFIG_TTY_SIGINT_CHAR)
{
@@ -105,7 +113,7 @@ static int uart_check_signo(int pid, const char *buf, size_t size)
#if defined(CONFIG_SERIAL_RXDMA) && \
(defined(CONFIG_TTY_SIGINT) || defined(CONFIG_TTY_SIGTSTP) || \
defined(CONFIG_TTY_FORCE_PANIC))
defined(CONFIG_TTY_FORCE_PANIC) || defined(CONFIG_TTY_LAUNCH))
static int uart_recvchars_signo(FAR uart_dev_t *dev)
{
FAR struct uart_dmaxfer_s *xfer = &dev->dmarx;
@@ -369,7 +377,7 @@ void uart_recvchars_done(FAR uart_dev_t *dev)
FAR struct uart_buffer_s *rxbuf = &dev->recv;
size_t nbytes = xfer->nbytes;
#if defined(CONFIG_TTY_SIGINT) || defined(CONFIG_TTY_SIGTSTP) || \
defined(CONFIG_TTY_FORCE_PANIC)
defined(CONFIG_TTY_FORCE_PANIC) || defined(CONFIG_TTY_LAUNCH)
int signo = 0;
/* Check if the SIGINT character is anywhere in the newly received DMA