hw/ide/pci.h

   1 #ifndef HW_IDE_PCI_H
   2 #define HW_IDE_PCI_H
   3
   4 #include <hw/ide/internal.h>
   5
   6 #define BM_STATUS_DMAING 0x01
   7 #define BM_STATUS_ERROR  0x02
   8 #define BM_STATUS_INT    0x04
   9
  10 #define BM_CMD_START     0x01
  11 #define BM_CMD_READ      0x08
  12
  13 typedef struct BMDMAState {
  14     IDEDMA dma;
  15     uint8_t cmd;
  16     uint8_t status;
  17     uint32_t addr;
  18
  19     IDEBus *bus;
  20     /* current transfer state */
  21     uint32_t cur_addr;
  22     uint32_t cur_prd_last;
  23     uint32_t cur_prd_addr;
  24     uint32_t cur_prd_len;
  25     BlockCompletionFunc *dma_cb;
  26     MemoryRegion addr_ioport;
  27     MemoryRegion extra_io;
  28     qemu_irq irq;
  29
  30     /* Bit 0-2 and 7:   BM status register
  31      * Bit 3-6:         bus->error_status */
  32     uint8_t migration_compat_status;
  33     uint8_t migration_retry_unit;
  34     int64_t migration_retry_sector_num;
  35     uint32_t migration_retry_nsector;
  36
  37     struct PCIIDEState *pci_dev;
  38 } BMDMAState;
  39
  40 typedef struct CMD646BAR {
  41     MemoryRegion cmd;
  42     MemoryRegion data;
  43     IDEBus *bus;
  44     struct PCIIDEState *pci_dev;
  45 } CMD646BAR;
  46
  47 #define TYPE_PCI_IDE "pci-ide"
  48 #define PCI_IDE(obj) OBJECT_CHECK(PCIIDEState, (obj), TYPE_PCI_IDE)
  49
  50 typedef struct PCIIDEState {
  51     /*< private >*/
  52     PCIDevice parent_obj;
  53     /*< public >*/
  54
  55     IDEBus bus[2];
  56     BMDMAState bmdma[2];
  57     uint32_t secondary; /* used only for cmd646 */
  58     MemoryRegion bmdma_bar;
  59     CMD646BAR cmd646_bar[2]; /* used only for cmd646 */
  60 } PCIIDEState;
  61
  62
  63 static inline IDEState *bmdma_active_if(BMDMAState *bmdma)
  64 {
  65     assert(bmdma->bus->retry_unit != (uint8_t)-1);
  66     return bmdma->bus->ifs + bmdma->bus->retry_unit;
  67 }
  68
  69
  70 void bmdma_init(IDEBus *bus, BMDMAState *bm, PCIIDEState *d);
  71 void bmdma_cmd_writeb(BMDMAState *bm, uint32_t val);
  72 extern MemoryRegionOps bmdma_addr_ioport_ops;
  73 void pci_ide_create_devs(PCIDevice *dev, DriveInfo **hd_table);
  74
  75 extern const VMStateDescription vmstate_ide_pci;
  76 #endif