From e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb Mon Sep 17 00:00:00 2001 From: Yang Zhang Date: Fri, 28 Aug 2015 09:58:54 +0800 Subject: Add qemu 2.4.0 Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang --- qemu/include/hw/irq.h | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 qemu/include/hw/irq.h (limited to 'qemu/include/hw/irq.h') diff --git a/qemu/include/hw/irq.h b/qemu/include/hw/irq.h new file mode 100644 index 000000000..4c4c2eaf9 --- /dev/null +++ b/qemu/include/hw/irq.h @@ -0,0 +1,65 @@ +#ifndef QEMU_IRQ_H +#define QEMU_IRQ_H + +/* Generic IRQ/GPIO pin infrastructure. */ + +#define TYPE_IRQ "irq" + +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); + +/* + * Allocates a single IRQ. The irq is assigned with a handler, an opaque + * data and the interrupt number. + */ +qemu_irq qemu_allocate_irq(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, int n); +void qemu_free_irq(qemu_irq irq); + +/* 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); + +#endif -- cgit 1.2.3-korg