ATA_MAX_DEVICES = 2, /* per bus/port */
ATA_MAX_PRD = 256, /* we could make these 256/256 */
ATA_SECT_SIZE = 512,
+ ATA_MAX_SECTORS = 256,
+ ATA_MAX_SECTORS_LBA48 = 65535,/* TODO: 65536? */
ATA_ID_WORDS = 256,
ATA_ID_SERNO_OFS = 10,
XFER_UDMA_2 = 0x42,
XFER_UDMA_1 = 0x41,
XFER_UDMA_0 = 0x40,
+ XFER_MW_DMA_4 = 0x24, /* CFA only */
+ XFER_MW_DMA_3 = 0x23, /* CFA only */
XFER_MW_DMA_2 = 0x22,
XFER_MW_DMA_1 = 0x21,
XFER_MW_DMA_0 = 0x20,
XFER_SW_DMA_2 = 0x12,
XFER_SW_DMA_1 = 0x11,
XFER_SW_DMA_0 = 0x10,
+ XFER_PIO_6 = 0x0E, /* CFA only */
+ XFER_PIO_5 = 0x0D, /* CFA only */
XFER_PIO_4 = 0x0C,
XFER_PIO_3 = 0x0B,
XFER_PIO_2 = 0x0A,
XFER_PIO_0 = 0x08,
XFER_PIO_SLOW = 0x00,
+ SETFEATURES_WC_ON = 0x02, /* Enable write cache */
+ SETFEATURES_WC_OFF = 0x82, /* Disable write cache */
+
/* ATAPI stuff */
ATAPI_PKT_DMA = (1 << 0),
ATAPI_DMADIR = (1 << 2), /* ATAPI data dir:
ATA_CBL_NONE = 0,
ATA_CBL_PATA40 = 1,
ATA_CBL_PATA80 = 2,
- ATA_CBL_PATA_UNK = 3,
- ATA_CBL_SATA = 4,
+ ATA_CBL_PATA40_SHORT = 3, /* 40 wire cable to high UDMA spec */
+ ATA_CBL_PATA_UNK = 4,
+ ATA_CBL_SATA = 5,
/* SATA Status and Control Registers */
SCR_STATUS = 0,
};
#define ata_id_is_ata(id) (((id)[0] & (1 << 15)) == 0)
-#define ata_id_is_cfa(id) ((id)[0] == 0x848A)
#define ata_id_is_sata(id) ((id)[93] == 0)
#define ata_id_rahead_enabled(id) ((id)[85] & (1 << 6))
#define ata_id_wcache_enabled(id) ((id)[85] & (1 << 5))
{
unsigned int mver;
+ if (id[ATA_ID_MAJOR_VER] == 0xFFFF)
+ return 0;
+
for (mver = 14; mver >= 1; mver--)
if (id[ATA_ID_MAJOR_VER] & (1 << mver))
break;
static inline int ata_id_current_chs_valid(const u16 *id)
{
- /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command
- has not been issued to the device then the values of
+ /* For ATA-1 devices, if the INITIALIZE DEVICE PARAMETERS command
+ has not been issued to the device then the values of
id[54] to id[56] are vendor specific. */
return (id[53] & 0x01) && /* Current translation valid */
id[54] && /* cylinders in current translation */
id[56]; /* sectors in current translation */
}
+static inline int ata_id_is_cfa(const u16 *id)
+{
+ u16 v = id[0];
+ if (v == 0x848A) /* Standard CF */
+ return 1;
+ /* Could be CF hiding as standard ATA */
+ if (ata_id_major_version(id) >= 3 && id[82] != 0xFFFF &&
+ (id[82] & ( 1 << 2)))
+ return 1;
+ return 0;
+}
+
+static inline int ata_drive_40wire(const u16 *dev_id)
+{
+ if (ata_id_major_version(dev_id) >= 5 && ata_id_is_sata(dev_id))
+ return 0; /* SATA */
+ if (dev_id[93] & 0x4000)
+ return 0; /* 80 wire */
+ return 1;
+}
+
static inline int atapi_cdb_len(const u16 *dev_id)
{
u16 tmp = dev_id[0] & 0x3;