From: Jan Luebbe <j...@pengutronix.de>
Break events are currently only handled by chardev/char-serial.c, so we
just ignore errors, which results in no behaviour change for other
chardevs.
Signed-off-by: Jan Luebbe <j...@pengutronix.de>
Message-id: 20210806144700.3751979-1-...@pengutronix.de
Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
hw/char/pl011.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/hw/char/pl011.c b/hw/char/pl011.c
index dc85527a5f9..6e2d7f75095 100644
--- a/hw/char/pl011.c
+++ b/hw/char/pl011.c
@@ -26,6 +26,7 @@
#include "hw/qdev-properties-system.h"
#include "migration/vmstate.h"
#include "chardev/char-fe.h"
+#include "chardev/char-serial.h"
#include "qemu/log.h"
#include "qemu/module.h"
#include "trace.h"
@@ -231,6 +232,11 @@ static void pl011_write(void *opaque, hwaddr offset,
s->read_count = 0;
s->read_pos = 0;
}
+ if ((s->lcr ^ value) & 0x1) {
+ int break_enable = value & 0x1;
+ qemu_chr_fe_ioctl(&s->chr, CHR_IOCTL_SERIAL_SET_BREAK,
+ &break_enable);
+ }
s->lcr = value;
pl011_set_read_trigger(s);
break;
--
2.20.1
