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i82378/i82374: Do not create DMA controller twice 

This fixes a crash in PReP emulation when using DMA controller to access
floppy drive.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
master
Hervé Poussineau 2012-03-17 15:39:41 +01:00 committed by Andreas Färber
parent 42fe1c245f
commit 049a9f7b94
2 changed files with 7 additions and 3 deletions
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5
hw/i82374.c
View File

@ -38,6 +38,7 @@ do { fprintf(stderr, "i82374 ERROR: " fmt , ## __VA_ARGS__); } while (0)
typedef struct I82374State {
uint8_t commands[8];
qemu_irq out;
} I82374State;
static const VMStateDescription vmstate_i82374 = {
@ -99,7 +100,7 @@ static uint32_t i82374_read_descriptor(void *opaque, uint32_t nport)
static void i82374_init(I82374State *s)
{
DMA_init(1, NULL);
DMA_init(1, &s->out);
memset(s->commands, 0, sizeof(s->commands));
}
@ -132,6 +133,8 @@ static int i82374_isa_init(ISADevice *dev)
i82374_init(s);
qdev_init_gpio_out(&dev->qdev, &s->out, 1);
return 0;
}

5
hw/i82378.c
View File

@ -170,6 +170,7 @@ static void i82378_init(DeviceState *dev, I82378State *s)
{
ISABus *isabus = DO_UPCAST(ISABus, qbus, qdev_get_child_bus(dev, "isa.0"));
ISADevice *pit;
ISADevice *isa;
qemu_irq *out0_irq;
/* This device has:
@ -199,8 +200,8 @@ static void i82378_init(DeviceState *dev, I82378State *s)
pcspk_init(isabus, pit);
/* 2 82C37 (dma) */
DMA_init(1, &s->out[1]);
isa_create_simple(isabus, "i82374");
isa = isa_create_simple(isabus, "i82374");
qdev_connect_gpio_out(&isa->qdev, 0, s->out[1]);
/* timer */
isa_create_simple(isabus, "mc146818rtc");