From b797318666dade9675a253d311125ae7b568e2f8 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Wed, 24 Sep 2014 12:32:17 +0200 Subject: sysbus: Expose IRQ enumeration helpers Sysbus devices can get their IRQ lines connected to other devices. It is possible to figure out which IRQ line a connection is on and whether a sysbus device even provides an IRQ connector at a specific offset. This patch exposes helpers to make this information publicly accessible. We will need it for the platform bus dynamic sysbus enumeration. Signed-off-by: Alexander Graf --- hw/core/qdev.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'hw/core/qdev.c') diff --git a/hw/core/qdev.c b/hw/core/qdev.c index b3d519645a..413b41376f 100644 --- a/hw/core/qdev.c +++ b/hw/core/qdev.c @@ -453,6 +453,17 @@ void qdev_connect_gpio_out_named(DeviceState *dev, const char *name, int n, g_free(propname); } +qemu_irq qdev_get_gpio_out_connector(DeviceState *dev, const char *name, int n) +{ + char *propname = g_strdup_printf("%s[%d]", + name ? name : "unnamed-gpio-out", n); + + qemu_irq ret = (qemu_irq)object_property_get_link(OBJECT(dev), propname, + NULL); + + return ret; +} + /* disconnect a GPIO ouput, returning the disconnected input (if any) */ static qemu_irq qdev_disconnect_gpio_out_named(DeviceState *dev, -- cgit v1.2.3