summaryrefslogtreecommitdiff
path: root/hw/ide/pci.h
blob: 0f2d4b91a77037eb343ae82003a66ec0ce8dff97 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
#ifndef HW_IDE_PCI_H
#define HW_IDE_PCI_H

#include <hw/ide/internal.h>

#define BM_STATUS_DMAING 0x01
#define BM_STATUS_ERROR  0x02
#define BM_STATUS_INT    0x04

#define BM_CMD_START     0x01
#define BM_CMD_READ      0x08

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;
    BlockCompletionFunc *dma_cb;
    MemoryRegion addr_ioport;
    MemoryRegion extra_io;
    qemu_irq irq;

    /* Bit 0-2 and 7:   BM status register
     * Bit 3-6:         bus->error_status */
    uint8_t migration_compat_status;
    uint8_t migration_retry_unit;
    int64_t migration_retry_sector_num;
    uint32_t migration_retry_nsector;

    struct PCIIDEState *pci_dev;
} BMDMAState;

typedef struct CMD646BAR {
    MemoryRegion cmd;
    MemoryRegion data;
    IDEBus *bus;
    struct PCIIDEState *pci_dev;
} CMD646BAR;

#define TYPE_PCI_IDE "pci-ide"
#define PCI_IDE(obj) OBJECT_CHECK(PCIIDEState, (obj), TYPE_PCI_IDE)

typedef struct PCIIDEState {
    /*< private >*/
    PCIDevice parent_obj;
    /*< public >*/

    IDEBus bus[2];
    BMDMAState bmdma[2];
    uint32_t secondary; /* used only for cmd646 */
    MemoryRegion bmdma_bar;
    CMD646BAR cmd646_bar[2]; /* used only for cmd646 */
} PCIIDEState;


static inline IDEState *bmdma_active_if(BMDMAState *bmdma)
{
    assert(bmdma->bus->retry_unit != (uint8_t)-1);
    return bmdma->bus->ifs + bmdma->bus->retry_unit;
}


void bmdma_init(IDEBus *bus, BMDMAState *bm, PCIIDEState *d);
void bmdma_cmd_writeb(BMDMAState *bm, uint32_t val);
extern MemoryRegionOps bmdma_addr_ioport_ops;
void pci_ide_create_devs(PCIDevice *dev, DriveInfo **hd_table);

extern const VMStateDescription vmstate_ide_pci;
#endif