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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-10 22:39:31 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-10 22:39:31 +0200
commit93734a234447a3c091f76d76f7351af9d4dde518 (patch)
treee133b68a95c54a84fa637893800d6e62b64a48fb /include/linux/ata.h
parent718c72e83da295efc9c8625b6f380ef10352d955 (diff)
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ide: ide_id_to_hd_driveid() -> ata_id_to_hd_driveid()
Rename ide_id_to_hd_driveid() to ata_id_to_hd_driveid() and move it to <linux/ata.h>. Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include/linux/ata.h')
-rw-r--r--include/linux/ata.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 81d9adeb819e..4c3f50070033 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -30,6 +30,7 @@
#define __LINUX_ATA_H__
#include <linux/types.h>
+#include <asm/byteorder.h>
/* defines only for the constants which don't work well as enums */
#define ATA_DMA_BOUNDARY 0xffffUL
@@ -781,6 +782,26 @@ static inline int atapi_id_dmadir(const u16 *dev_id)
return ata_id_major_version(dev_id) >= 7 && (dev_id[62] & 0x8000);
}
+static inline void ata_id_to_hd_driveid(u16 *id)
+{
+#ifdef __BIG_ENDIAN
+ /* accessed in struct hd_driveid as 8-bit values */
+ id[ATA_ID_MAX_MULTSECT] = __cpu_to_le16(id[ATA_ID_MAX_MULTSECT]);
+ id[ATA_ID_CAPABILITY] = __cpu_to_le16(id[ATA_ID_CAPABILITY]);
+ id[ATA_ID_OLD_PIO_MODES] = __cpu_to_le16(id[ATA_ID_OLD_PIO_MODES]);
+ id[ATA_ID_OLD_DMA_MODES] = __cpu_to_le16(id[ATA_ID_OLD_DMA_MODES]);
+ id[ATA_ID_MULTSECT] = __cpu_to_le16(id[ATA_ID_MULTSECT]);
+
+ /* as 32-bit values */
+ *(u32 *)&id[ATA_ID_LBA_CAPACITY] = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
+ *(u32 *)&id[ATA_ID_SPG] = ata_id_u32(id, ATA_ID_SPG);
+
+ /* as 64-bit value */
+ *(u64 *)&id[ATA_ID_LBA_CAPACITY_2] =
+ ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
+#endif
+}
+
static inline int is_multi_taskfile(struct ata_taskfile *tf)
{
return (tf->command == ATA_CMD_READ_MULTI) ||