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ide: cmd646 we can get the pci device with container_of

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Patchworks-ID: 35305
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Juan Quintela 2009-10-07 16:56:27 +02:00 committed by Anthony Liguori
parent 7e078316fd
commit 61f58e5934
1 changed files with 11 additions and 6 deletions
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17
hw/ide/cmd646.c
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@ -68,10 +68,19 @@ static void ide_map(PCIDevice *pci_dev, int region_num,
}
}
static PCIIDEState *pci_from_bm(BMDMAState *bm)
{
if (bm->unit == 0) {
return container_of(bm, PCIIDEState, bmdma[0]);
} else {
return container_of(bm, PCIIDEState, bmdma[1]);
}
}
static uint32_t bmdma_readb(void *opaque, uint32_t addr)
{
BMDMAState *bm = opaque;
PCIIDEState *pci_dev;
PCIIDEState *pci_dev = pci_from_bm(bm);
uint32_t val;
switch(addr & 3) {
@ -79,14 +88,12 @@ static uint32_t bmdma_readb(void *opaque, uint32_t addr)
val = bm->cmd;
break;
case 1:
pci_dev = bm->pci_dev;
val = pci_dev->dev.config[MRDMODE];
break;
case 2:
val = bm->status;
break;
case 3:
pci_dev = bm->pci_dev;
if (bm == &pci_dev->bmdma[0]) {
val = pci_dev->dev.config[UDIDETCR0];
} else {
@ -106,13 +113,12 @@ static uint32_t bmdma_readb(void *opaque, uint32_t addr)
static void bmdma_writeb(void *opaque, uint32_t addr, uint32_t val)
{
BMDMAState *bm = opaque;
PCIIDEState *pci_dev;
PCIIDEState *pci_dev = pci_from_bm(bm);
#ifdef DEBUG_IDE
printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val);
#endif
switch(addr & 3) {
case 1:
pci_dev = bm->pci_dev;
pci_dev->dev.config[MRDMODE] =
(pci_dev->dev.config[MRDMODE] & ~0x30) | (val & 0x30);
cmd646_update_irq(pci_dev);
@ -121,7 +127,6 @@ static void bmdma_writeb(void *opaque, uint32_t addr, uint32_t val)
bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
break;
case 3:
pci_dev = bm->pci_dev;
if (bm == &pci_dev->bmdma[0])
pci_dev->dev.config[UDIDETCR0] = val;
else