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[Qemu-devel] [RFC PATCH v5 10/14] qdev: Define qdev_get_gpio_out
From: |
Peter Crosthwaite |
Subject: |
[Qemu-devel] [RFC PATCH v5 10/14] qdev: Define qdev_get_gpio_out |
Date: |
Mon, 27 Apr 2015 14:58:04 -0700 |
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>
---
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 6e6a65d..d736613 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -490,6 +490,18 @@ 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 4e673f9..95f7f0e 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -274,6 +274,8 @@ 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,
--
2.3.6.3.g2cc70ee
- [Qemu-devel] [RFC PATCH v5 02/14] register: Add Memory API glue, (continued)
- [Qemu-devel] [RFC PATCH v5 02/14] register: Add Memory API glue, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 07/14] bitops: Add ONES macro, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 06/14] register: Add block initialise helper, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 05/14] register: QOMify, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 01/14] register: Add Register API, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 04/14] register: Define REG and FIELD macros, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 14/14] misc: Introduce ZynqMP IOU SLCR, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 08/14] dma: Add Xilinx Zynq devcfg device model, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 12/14] irq: Add opaque setter routine, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 13/14] register: Add GPIO API, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 10/14] qdev: Define qdev_get_gpio_out,
Peter Crosthwaite <=
- [Qemu-devel] [RFC PATCH v5 09/14] xilinx_zynq: add devcfg to machine model, Peter Crosthwaite, 2015/04/27
- [Qemu-devel] [RFC PATCH v5 11/14] qdev: Add qdev_pass_all_gpios API, Peter Crosthwaite, 2015/04/27