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added atapi support 

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1415 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Greg Watson 2004-03-13 03:54:08 +00:00
parent e54edf7a18
commit 12f5ef5f87
1 changed files with 14 additions and 11 deletions
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25
src/include/pc80/ide.h
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@ -36,16 +36,19 @@ struct harddisk_info {
uint8_t slave;
sector_t sectors;
int address_mode; /* am i lba (0x40) or chs (0x00) */
#define ADDRESS_MODE_CHS 0
#define ADDRESS_MODE_LBA 1
#define ADDRESS_MODE_LBA48 2
int drive_exists;
int slave_absent;
int basedrive;
#define ADDRESS_MODE_CHS 0
#define ADDRESS_MODE_LBA 1
#define ADDRESS_MODE_LBA48 2
#define ADDRESS_MODE_PACKET 3
uint32_t hw_sector_size;
unsigned drive_exists : 1;
unsigned slave_absent : 1;
unsigned removable : 1;
};
#define IDE_SECTOR_SIZE 0x200
#define CDROM_SECTOR_SIZE 0x400
#define IDE_BASE0 (0x1F0u) /* primary controller */
#define IDE_BASE1 (0x170u) /* secondary */
@ -196,15 +199,15 @@ struct ide_pio_command
#define IDE_FEATURE_ENABLE_REVERTING_TO_POWERON_DEFAULTS 0xCC
#define IDE_FEATURE_DISABLE_SERVICE_INTERRUPT 0xDE
#define NUM_HD (4)
#define IDE_MAX_CONTROLLERS 2
#define IDE_MAX_DRIVES (IDE_MAX_CONTROLLERS*2)
#define SECTOR_SIZE 512
#define SECTOR_SHIFT 9
/* Maximum block_size that may be set. */
#define DISK_BUFFER_SIZE (18 * SECTOR_SIZE)
extern struct harddisk_info harddisk_info[NUM_HD];
extern struct harddisk_info harddisk_info[];
extern int ide_init(void);
extern int ide_read_sector(int driveno, void * buf, unsigned int sector,
int byte_offset, int n_bytes);
extern int ide_probe(int drive);
extern int ide_read(int drive, sector_t sector, void *buffer);