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[PULL 39/44] hw/char/pl011: add support for sending break
From: |
Peter Maydell |
Subject: |
[PULL 39/44] hw/char/pl011: add support for sending break |
Date: |
Wed, 25 Aug 2021 11:35:29 +0100 |
From: Jan Luebbe <jlu@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 <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>
---
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
- [PULL 33/44] target/arm: Implement MVE scatter-gather insns, (continued)
- [PULL 33/44] target/arm: Implement MVE scatter-gather insns, Peter Maydell, 2021/08/25
- [PULL 36/44] target/arm: Re-indent sdiv and udiv helpers, Peter Maydell, 2021/08/25
- [PULL 34/44] target/arm: Implement MVE scatter-gather immediate forms, Peter Maydell, 2021/08/25
- [PULL 24/44] target/arm: Rename MVEGenDualAccOpFn to MVEGenLongDualAccOpFn, Peter Maydell, 2021/08/25
- [PULL 32/44] target/arm: Implement MVE VCTP, Peter Maydell, 2021/08/25
- [PULL 35/44] target/arm: Implement MVE interleaving loads/stores, Peter Maydell, 2021/08/25
- [PULL 38/44] target/arm: kvm: use RCU_READ_LOCK_GUARD() in kvm_arch_fixup_msi_route(), Peter Maydell, 2021/08/25
- [PULL 37/44] target/arm: Implement M-profile trapping on division by zero, Peter Maydell, 2021/08/25
- [PULL 40/44] fsl-imx6ul: Instantiate SAI1/2/3 and ASRC as unimplemented devices, Peter Maydell, 2021/08/25
- [PULL 43/44] fsl-imx7: Instantiate SAI1/2/3 as unimplemented devices, Peter Maydell, 2021/08/25
- [PULL 39/44] hw/char/pl011: add support for sending break,
Peter Maydell <=
- [PULL 44/44] docs: Document how to use gdb with unix sockets, Peter Maydell, 2021/08/25
- [PULL 41/44] hw/dma/pl330: Add memory region to replace default, Peter Maydell, 2021/08/25
- [PULL 42/44] sbsa-ref: Rename SBSA_GWDT enum value, Peter Maydell, 2021/08/25
- Re: [PULL 00/44] target-arm queue, Peter Maydell, 2021/08/25