root / include / hw / irq.h @ d91a68a7
History | View | Annotate | Download (1.8 kB)
1 | 87ecb68b | pbrook | #ifndef QEMU_IRQ_H
|
---|---|---|---|
2 | 87ecb68b | pbrook | #define QEMU_IRQ_H
|
3 | 87ecb68b | pbrook | |
4 | d537cf6c | pbrook | /* Generic IRQ/GPIO pin infrastructure. */
|
5 | d537cf6c | pbrook | |
6 | 5202ef94 | Igor Mammedov | typedef struct IRQState *qemu_irq; |
7 | 5202ef94 | Igor Mammedov | |
8 | d537cf6c | pbrook | typedef void (*qemu_irq_handler)(void *opaque, int n, int level); |
9 | d537cf6c | pbrook | |
10 | d537cf6c | pbrook | void qemu_set_irq(qemu_irq irq, int level); |
11 | d537cf6c | pbrook | |
12 | d537cf6c | pbrook | static inline void qemu_irq_raise(qemu_irq irq) |
13 | d537cf6c | pbrook | { |
14 | d537cf6c | pbrook | qemu_set_irq(irq, 1);
|
15 | d537cf6c | pbrook | } |
16 | d537cf6c | pbrook | |
17 | d537cf6c | pbrook | static inline void qemu_irq_lower(qemu_irq irq) |
18 | d537cf6c | pbrook | { |
19 | d537cf6c | pbrook | qemu_set_irq(irq, 0);
|
20 | d537cf6c | pbrook | } |
21 | d537cf6c | pbrook | |
22 | 106627d0 | balrog | static inline void qemu_irq_pulse(qemu_irq irq) |
23 | 106627d0 | balrog | { |
24 | 106627d0 | balrog | qemu_set_irq(irq, 1);
|
25 | 106627d0 | balrog | qemu_set_irq(irq, 0);
|
26 | 106627d0 | balrog | } |
27 | 106627d0 | balrog | |
28 | 1e5b31e6 | Peter A. G. Crosthwaite | /* Returns an array of N IRQs. Each IRQ is assigned the argument handler and
|
29 | 1e5b31e6 | Peter A. G. Crosthwaite | * opaque data.
|
30 | 1e5b31e6 | Peter A. G. Crosthwaite | */
|
31 | d537cf6c | pbrook | qemu_irq *qemu_allocate_irqs(qemu_irq_handler handler, void *opaque, int n); |
32 | 1e5b31e6 | Peter A. G. Crosthwaite | |
33 | a8a9d30b | Marcel Apfelbaum | /*
|
34 | a8a9d30b | Marcel Apfelbaum | * Allocates a single IRQ. The irq is assigned with a handler, an opaque
|
35 | a8a9d30b | Marcel Apfelbaum | * data and the interrupt number.
|
36 | a8a9d30b | Marcel Apfelbaum | */
|
37 | a8a9d30b | Marcel Apfelbaum | qemu_irq qemu_allocate_irq(qemu_irq_handler handler, void *opaque, int n); |
38 | a8a9d30b | Marcel Apfelbaum | |
39 | 1e5b31e6 | Peter A. G. Crosthwaite | /* Extends an Array of IRQs. Old IRQs have their handlers and opaque data
|
40 | 1e5b31e6 | Peter A. G. Crosthwaite | * preserved. New IRQs are assigned the argument handler and opaque data.
|
41 | 1e5b31e6 | Peter A. G. Crosthwaite | */
|
42 | 1e5b31e6 | Peter A. G. Crosthwaite | qemu_irq *qemu_extend_irqs(qemu_irq *old, int n_old, qemu_irq_handler handler,
|
43 | 1e5b31e6 | Peter A. G. Crosthwaite | void *opaque, int n); |
44 | 1e5b31e6 | Peter A. G. Crosthwaite | |
45 | 51bf9e7e | aliguori | void qemu_free_irqs(qemu_irq *s);
|
46 | a8a9d30b | Marcel Apfelbaum | void qemu_free_irq(qemu_irq irq);
|
47 | d537cf6c | pbrook | |
48 | b50a6563 | balrog | /* Returns a new IRQ with opposite polarity. */
|
49 | b50a6563 | balrog | qemu_irq qemu_irq_invert(qemu_irq irq); |
50 | 87ecb68b | pbrook | |
51 | 9793212b | Peter Maydell | /* Returns a new IRQ which feeds into both the passed IRQs */
|
52 | 9793212b | Peter Maydell | qemu_irq qemu_irq_split(qemu_irq irq1, qemu_irq irq2); |
53 | 9793212b | Peter Maydell | |
54 | 22ec3283 | Avi Kivity | /* Returns a new IRQ set which connects 1:1 to another IRQ set, which
|
55 | 22ec3283 | Avi Kivity | * may be set later.
|
56 | 22ec3283 | Avi Kivity | */
|
57 | 22ec3283 | Avi Kivity | qemu_irq *qemu_irq_proxy(qemu_irq **target, int n);
|
58 | 22ec3283 | Avi Kivity | |
59 | 20288345 | Paolo Bonzini | /* For internal use in qtest. Similar to qemu_irq_split, but operating
|
60 | 20288345 | Paolo Bonzini | on an existing vector of qemu_irq. */
|
61 | 20288345 | Paolo Bonzini | void qemu_irq_intercept_in(qemu_irq *gpio_in, qemu_irq_handler handler, int n); |
62 | 20288345 | Paolo Bonzini | void qemu_irq_intercept_out(qemu_irq **gpio_out, qemu_irq_handler handler, int n); |
63 | 20288345 | Paolo Bonzini | |
64 | 87ecb68b | pbrook | #endif |