diff options
| author | Jan Kiszka <jan.kiszka@siemens.com> | 2012-01-10 16:31:16 +0100 |
|---|---|---|
| committer | Jan Kiszka <jan.kiszka@siemens.com> | 2012-01-19 12:14:40 +0100 |
| commit | 9aa78c425f6cd6a57ec53dd1a76233a080dc83b6 (patch) | |
| tree | 966d41aba4166404e61fc0ae60555e67168190c5 /hw/i8259.c | |
| parent | 7a380ca350f84b5b99391da20a2b4ea505b0524d (diff) | |
i8259: Completely privatize PicState
Use DeviceState instead of PicState in the public i8259 API. This is
cleaner and allows to reorganize the PIC data structures for KVM reuse.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Diffstat (limited to 'hw/i8259.c')
| -rw-r--r-- | hw/i8259.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/hw/i8259.c b/hw/i8259.c index 7331e0e61c..cfaa35c092 100644 --- a/hw/i8259.c +++ b/hw/i8259.c @@ -40,6 +40,8 @@ //#define DEBUG_IRQ_LATENCY //#define DEBUG_IRQ_COUNT +typedef struct PicState PicState; + struct PicState { ISADevice dev; uint8_t last_irr; /* edge detection */ @@ -76,7 +78,7 @@ static uint64_t irq_count[16]; #ifdef DEBUG_IRQ_LATENCY static int64_t irq_time[16]; #endif -PicState *isa_pic; +DeviceState *isa_pic; static PicState *slave_pic; /* return the highest priority found in mask (highest = smallest @@ -206,8 +208,9 @@ static void pic_intack(PicState *s, int irq) pic_update_irq(s); } -int pic_read_irq(PicState *s) +int pic_read_irq(DeviceState *d) { + PicState *s = DO_UPCAST(PicState, dev.qdev, d); int irq, irq2, intno; irq = pic_get_irq(s); @@ -269,7 +272,7 @@ static void pic_init_reset(PicState *s) static void pic_reset(DeviceState *dev) { - PicState *s = container_of(dev, PicState, dev.qdev); + PicState *s = DO_UPCAST(PicState, dev.qdev, dev); pic_init_reset(s); s->elcr = 0; @@ -399,8 +402,10 @@ static uint64_t pic_ioport_read(void *opaque, target_phys_addr_t addr, return ret; } -int pic_get_output(PicState *s) +int pic_get_output(DeviceState *d) { + PicState *s = DO_UPCAST(PicState, dev.qdev, d); + return (pic_get_irq(s) >= 0); } @@ -491,7 +496,7 @@ void pic_info(Monitor *mon) return; } for (i = 0; i < 2; i++) { - s = i == 0 ? isa_pic : slave_pic; + s = i == 0 ? DO_UPCAST(PicState, dev.qdev, isa_pic) : slave_pic; monitor_printf(mon, "pic%d: irr=%02x imr=%02x isr=%02x hprio=%d " "irq_base=%02x rr_sel=%d elcr=%02x fnm=%d\n", i, s->irr, s->imr, s->isr, s->priority_add, @@ -538,7 +543,7 @@ qemu_irq *i8259_init(ISABus *bus, qemu_irq parent_irq) irq_set[i] = qdev_get_gpio_in(&dev->qdev, i); } - isa_pic = DO_UPCAST(PicState, dev, dev); + isa_pic = &dev->qdev; dev = isa_create(bus, "isa-i8259"); qdev_prop_set_uint32(&dev->qdev, "iobase", 0xa0); |