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[Qemu-devel] [PATCH v6 09/13] qdev: Define qdev_get_gpio_out
From: |
Alistair Francis |
Subject: |
[Qemu-devel] [PATCH v6 09/13] qdev: Define qdev_get_gpio_out |
Date: |
Thu, 12 May 2016 15:46:13 -0700 |
From: Peter Crosthwaite <address@hidden>
An API similar to the existing qdev_get_gpio_in() except gets outputs.
Useful for:
1: Implementing lightweight devices that don't want to keep pointers
to their own GPIOs. They can get their GPIO pointers at runtime from
QOM using this API.
2: testing or debugging code which may wish to override the
hardware generated value of of a GPIO with a user specified value
(E.G. interrupt injection).
Signed-off-by: Peter Crosthwaite <address@hidden>
Signed-off-by: Alistair Francis <address@hidden>
---
hw/core/qdev.c | 12 ++++++++++++
include/hw/qdev-core.h | 2 ++
2 files changed, 14 insertions(+)
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index db41aa1..e3015d2 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -489,6 +489,18 @@ qemu_irq qdev_get_gpio_in(DeviceState *dev, int n)
return qdev_get_gpio_in_named(dev, NULL, n);
}
+qemu_irq qdev_get_gpio_out_named(DeviceState *dev, const char *name, int n)
+{
+ char *propname = g_strdup_printf("%s[%d]",
+ name ? name : "unnamed-gpio-out", n);
+ return (qemu_irq)object_property_get_link(OBJECT(dev), propname, NULL);
+}
+
+qemu_irq qdev_get_gpio_out(DeviceState *dev, int n)
+{
+ return qdev_get_gpio_out_named(dev, NULL, n);
+}
+
void qdev_connect_gpio_out_named(DeviceState *dev, const char *name, int n,
qemu_irq pin)
{
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 1ce02b2..0e216af 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -285,6 +285,8 @@ bool qdev_machine_modified(void);
qemu_irq qdev_get_gpio_in(DeviceState *dev, int n);
qemu_irq qdev_get_gpio_in_named(DeviceState *dev, const char *name, int n);
+qemu_irq qdev_get_gpio_out(DeviceState *dev, int n);
+qemu_irq qdev_get_gpio_out_named(DeviceState *dev, const char *name, int n);
void qdev_connect_gpio_out(DeviceState *dev, int n, qemu_irq pin);
void qdev_connect_gpio_out_named(DeviceState *dev, const char *name, int n,
--
2.7.4
- [Qemu-devel] [PATCH v6 00/13] data-driven device registers, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 01/13] bitops: Add MAKE_64BIT_MASK macro, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 02/13] register: Add Register API, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 03/13] register: Add Memory API glue, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 05/13] register: QOMify, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 06/13] register: Add block initialise helper, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 04/13] register: Define REG and FIELD macros, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 08/13] xilinx_zynq: Connect devcfg to the Zynq machine model, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 07/13] dma: Add Xilinx Zynq devcfg device model, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 09/13] qdev: Define qdev_get_gpio_out,
Alistair Francis <=
- [Qemu-devel] [PATCH v6 10/13] irq: Add opaque setter routine, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 11/13] register: Add GPIO API, Alistair Francis, 2016/05/12
- [Qemu-devel] [PATCH v6 12/13] misc: Introduce ZynqMP IOU SLCR, Alistair Francis, 2016/05/12