mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-28 14:00:44 +00:00
5202ef942f
It's necessary for making CPU child of DEVICE without causing circular header deps. Signed-off-by: Igor Mammedov <imammedo@redhat.com> [ehabkost: re-added the typedef to hw/irq.h after rebasing] Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
#ifndef QEMU_IRQ_H
|
|
#define QEMU_IRQ_H
|
|
|
|
/* Generic IRQ/GPIO pin infrastructure. */
|
|
|
|
typedef struct IRQState *qemu_irq;
|
|
|
|
typedef void (*qemu_irq_handler)(void *opaque, int n, int level);
|
|
|
|
void qemu_set_irq(qemu_irq irq, int level);
|
|
|
|
static inline void qemu_irq_raise(qemu_irq irq)
|
|
{
|
|
qemu_set_irq(irq, 1);
|
|
}
|
|
|
|
static inline void qemu_irq_lower(qemu_irq irq)
|
|
{
|
|
qemu_set_irq(irq, 0);
|
|
}
|
|
|
|
static inline void qemu_irq_pulse(qemu_irq irq)
|
|
{
|
|
qemu_set_irq(irq, 1);
|
|
qemu_set_irq(irq, 0);
|
|
}
|
|
|
|
/* Returns an array of N IRQs. Each IRQ is assigned the argument handler and
|
|
* opaque data.
|
|
*/
|
|
qemu_irq *qemu_allocate_irqs(qemu_irq_handler handler, void *opaque, int n);
|
|
|
|
/* Extends an Array of IRQs. Old IRQs have their handlers and opaque data
|
|
* preserved. New IRQs are assigned the argument handler and opaque data.
|
|
*/
|
|
qemu_irq *qemu_extend_irqs(qemu_irq *old, int n_old, qemu_irq_handler handler,
|
|
void *opaque, int n);
|
|
|
|
void qemu_free_irqs(qemu_irq *s);
|
|
|
|
/* Returns a new IRQ with opposite polarity. */
|
|
qemu_irq qemu_irq_invert(qemu_irq irq);
|
|
|
|
/* Returns a new IRQ which feeds into both the passed IRQs */
|
|
qemu_irq qemu_irq_split(qemu_irq irq1, qemu_irq irq2);
|
|
|
|
/* Returns a new IRQ set which connects 1:1 to another IRQ set, which
|
|
* may be set later.
|
|
*/
|
|
qemu_irq *qemu_irq_proxy(qemu_irq **target, int n);
|
|
|
|
/* For internal use in qtest. Similar to qemu_irq_split, but operating
|
|
on an existing vector of qemu_irq. */
|
|
void qemu_irq_intercept_in(qemu_irq *gpio_in, qemu_irq_handler handler, int n);
|
|
void qemu_irq_intercept_out(qemu_irq **gpio_out, qemu_irq_handler handler, int n);
|
|
|
|
#endif
|