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| author | Jan Luebbe | 2021-08-06 16:47:00 +0200 |
|---|---|---|
| committer | Peter Maydell | 2021-08-25 11:48:50 +0200 |
| commit | d60af909d5131300596d4f6f052b2d0f44e76560 (patch) | |
| tree | 12ea2a01a387b231f78f31688e717e80ae62a928 | |
| parent | target/arm: kvm: use RCU_READ_LOCK_GUARD() in kvm_arch_fixup_msi_route() (diff) | |
| download | qemu-d60af909d5131300596d4f6f052b2d0f44e76560.tar.gz qemu-d60af909d5131300596d4f6f052b2d0f44e76560.tar.xz qemu-d60af909d5131300596d4f6f052b2d0f44e76560.zip | |
hw/char/pl011: add support for sending break
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 <jlu@pengutronix.de>
Message-id: 20210806144700.3751979-1-jlu@pengutronix.de
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| -rw-r--r-- | hw/char/pl011.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/char/pl011.c b/hw/char/pl011.c index dc85527a5f..6e2d7f7509 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; |