diff options
Diffstat (limited to 'qemu/roms/seabios/src/block.h')
| -rw-r--r-- | qemu/roms/seabios/src/block.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/qemu/roms/seabios/src/block.h b/qemu/roms/seabios/src/block.h new file mode 100644 index 000000000..8182288d4 --- /dev/null +++ b/qemu/roms/seabios/src/block.h @@ -0,0 +1,109 @@ +#ifndef __BLOCK_H +#define __BLOCK_H + +#include "types.h" // u32 + + +/**************************************************************** + * Disk command request + ****************************************************************/ + +struct disk_op_s { + u64 lba; + void *buf_fl; + struct drive_s *drive_gf; + u16 count; + u8 command; +}; + +#define CMD_RESET 0x00 +#define CMD_READ 0x02 +#define CMD_WRITE 0x03 +#define CMD_VERIFY 0x04 +#define CMD_FORMAT 0x05 +#define CMD_SEEK 0x07 +#define CMD_ISREADY 0x10 + + +/**************************************************************** + * Global storage + ****************************************************************/ + +struct chs_s { + u16 head; + u16 cylinder; + u16 sector; + u16 pad; +}; + +struct drive_s { + u8 type; // Driver type (DTYPE_*) + u8 floppy_type; // Type of floppy (only for floppy drives). + struct chs_s lchs; // Logical CHS + u64 sectors; // Total sectors count + u32 cntl_id; // Unique id for a given driver type. + u8 removable; // Is media removable (currently unused) + + // Info for EDD calls + u8 translation; // type of translation + u16 blksize; // block size + struct chs_s pchs; // Physical CHS +}; + +#define DISK_SECTOR_SIZE 512 +#define CDROM_SECTOR_SIZE 2048 + +#define DTYPE_NONE 0x00 +#define DTYPE_FLOPPY 0x10 +#define DTYPE_ATA 0x20 +#define DTYPE_ATA_ATAPI 0x21 +#define DTYPE_RAMDISK 0x30 +#define DTYPE_CDEMU 0x40 +#define DTYPE_AHCI 0x50 +#define DTYPE_AHCI_ATAPI 0x51 +#define DTYPE_VIRTIO_SCSI 0x60 +#define DTYPE_VIRTIO_BLK 0x61 +#define DTYPE_USB 0x70 +#define DTYPE_USB_32 0x71 +#define DTYPE_UAS 0x72 +#define DTYPE_UAS_32 0x73 +#define DTYPE_LSI_SCSI 0x80 +#define DTYPE_ESP_SCSI 0x81 +#define DTYPE_MEGASAS 0x82 +#define DTYPE_PVSCSI 0x83 +#define DTYPE_SDCARD 0x90 + +#define MAXDESCSIZE 80 + +#define TRANSLATION_NONE 0 +#define TRANSLATION_LBA 1 +#define TRANSLATION_LARGE 2 +#define TRANSLATION_RECHS 3 + +#define EXTTYPE_FLOPPY 0 +#define EXTTYPE_HD 1 +#define EXTTYPE_CD 2 + +#define EXTSTART_HD 0x80 +#define EXTSTART_CD 0xE0 + + +/**************************************************************** + * Function defs + ****************************************************************/ + +// block.c +extern u8 FloppyCount, CDCount; +extern u8 *bounce_buf_fl; +struct drive_s *getDrive(u8 exttype, u8 extdriveoffset); +int getDriveId(u8 exttype, struct drive_s *drive); +void map_floppy_drive(struct drive_s *drive); +void map_hd_drive(struct drive_s *drive); +void map_cd_drive(struct drive_s *drive); +struct int13dpt_s; +int fill_edd(u16 seg, struct int13dpt_s *param_far, struct drive_s *drive_gf); +int process_op(struct disk_op_s *op); +int send_disk_op(struct disk_op_s *op); +int create_bounce_buf(void); + +#endif // block.h |