diff options
Diffstat (limited to 'drivers/serial/serial-uclass.c')
| -rw-r--r-- | drivers/serial/serial-uclass.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c index 0d43e9b625..da3e1eb3ab 100644 --- a/drivers/serial/serial-uclass.c +++ b/drivers/serial/serial-uclass.c @@ -238,6 +238,18 @@ static void _serial_puts(struct udevice *dev, const char *str) } while (*str); } +#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT +static void _serial_flush(struct udevice *dev) +{ + struct dm_serial_ops *ops = serial_get_ops(dev); + + if (!ops->pending) + return; + while (ops->pending(dev, false) > 0) + ; +} +#endif + static int __serial_getc(struct udevice *dev) { struct dm_serial_ops *ops = serial_get_ops(dev); @@ -315,6 +327,16 @@ void serial_puts(const char *str) _serial_puts(gd->cur_serial_dev, str); } +#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT +void serial_flush(void) +{ + if (!gd->cur_serial_dev) + return; + + _serial_flush(gd->cur_serial_dev); +} +#endif + int serial_getc(void) { if (!gd->cur_serial_dev) @@ -398,6 +420,13 @@ static void serial_stub_puts(struct stdio_dev *sdev, const char *str) _serial_puts(sdev->priv, str); } +#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT +static void serial_stub_flush(struct stdio_dev *sdev) +{ + _serial_flush(sdev->priv); +} +#endif + static int serial_stub_getc(struct stdio_dev *sdev) { return _serial_getc(sdev->priv); @@ -447,6 +476,7 @@ static int on_baudrate(const char *name, const char *value, enum env_op op, printf("## Switch baudrate to %d bps and press ENTER ...\n", baudrate); udelay(50000); + flush(); } gd->baudrate = baudrate; @@ -520,6 +550,7 @@ static int serial_post_probe(struct udevice *dev) sdev.priv = dev; sdev.putc = serial_stub_putc; sdev.puts = serial_stub_puts; + STDIO_DEV_ASSIGN_FLUSH(&sdev, serial_stub_flush); sdev.getc = serial_stub_getc; sdev.tstc = serial_stub_tstc; |