mirror of
https://github.com/qemu/qemu.git
synced 2024-12-03 00:33:39 +08:00
40a6238a20
The ATA core is currently heavily intertwined with BMDMA code. Let's loosen that a bit, so we can happily replace the DMA backend with different implementations. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
#ifndef HW_IDE_PCI_H
|
|
#define HW_IDE_PCI_H
|
|
|
|
#include <hw/ide/internal.h>
|
|
|
|
typedef struct BMDMAState {
|
|
IDEDMA dma;
|
|
uint8_t cmd;
|
|
uint8_t status;
|
|
uint32_t addr;
|
|
|
|
IDEBus *bus;
|
|
/* current transfer state */
|
|
uint32_t cur_addr;
|
|
uint32_t cur_prd_last;
|
|
uint32_t cur_prd_addr;
|
|
uint32_t cur_prd_len;
|
|
uint8_t unit;
|
|
BlockDriverCompletionFunc *dma_cb;
|
|
int64_t sector_num;
|
|
uint32_t nsector;
|
|
IORange addr_ioport;
|
|
QEMUBH *bh;
|
|
qemu_irq irq;
|
|
} BMDMAState;
|
|
|
|
typedef struct PCIIDEState {
|
|
PCIDevice dev;
|
|
IDEBus bus[2];
|
|
BMDMAState bmdma[2];
|
|
uint32_t secondary; /* used only for cmd646 */
|
|
} PCIIDEState;
|
|
|
|
|
|
static inline IDEState *bmdma_active_if(BMDMAState *bmdma)
|
|
{
|
|
assert(bmdma->unit != (uint8_t)-1);
|
|
return bmdma->bus->ifs + bmdma->unit;
|
|
}
|
|
|
|
|
|
void bmdma_init(IDEBus *bus, BMDMAState *bm);
|
|
void bmdma_cmd_writeb(void *opaque, uint32_t addr, uint32_t val);
|
|
extern const IORangeOps bmdma_addr_ioport_ops;
|
|
void pci_ide_create_devs(PCIDevice *dev, DriveInfo **hd_table);
|
|
|
|
extern const VMStateDescription vmstate_ide_pci;
|
|
#endif
|