ide: remove drive->driveid
* Factor out HDIO_[OBSOLETE,GET]_IDENTITY ioctls handling
to ide_get_identity_ioctl().
* Use temporary buffer in ide_get_identity_ioctl() instead
of accessing drive->id directly.
* Add ide_id_to_hd_driveid() inline to convert raw id into
struct hd_driveid format (needed on big-endian).
* Use ide_id_to_hd_driveid() in ide_get_identity_ioctl(),
cleanup ide_fix_driveid() and switch ide to use use raw id.
* Remove no longer needed drive->driveid.
This leaves us with 3 users of struct hd_driveid in tree:
- arch/um/drivers/ubd_kern.c
- drivers/block/xsysace.c
- drivers/usb/storage/isd200.c
While at it:
* Use ata_id_u{32,64}() and ata_id_has_{dma,lba,iordy}() macros.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index f1669bc..8f1ec03 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -101,13 +101,14 @@
*/
static int lba_capacity_is_ok(u16 *id)
{
- struct hd_driveid *driveid = (struct hd_driveid *)id;
unsigned long lba_sects, chs_sects, head, tail;
/* No non-LBA info .. so valid! */
if (id[ATA_ID_CYLS] == 0)
return 1;
+ lba_sects = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
+
/*
* The ATA spec tells large drives to return
* C/H/S = 16383/16/63 independent of their size.
@@ -118,10 +119,9 @@
(id[ATA_ID_CYLS] == 4092 && id[ATA_ID_CUR_CYLS] == 16383)) &&
id[ATA_ID_SECTORS] == 63 &&
(id[ATA_ID_HEADS] == 15 || id[ATA_ID_HEADS] == 16) &&
- (driveid->lba_capacity >= 16383 * 63 * id[ATA_ID_HEADS]))
+ (lba_sects >= 16383 * 63 * id[ATA_ID_HEADS]))
return 1;
- lba_sects = driveid->lba_capacity;
chs_sects = id[ATA_ID_CYLS] * id[ATA_ID_HEADS] * id[ATA_ID_SECTORS];
/* perform a rough sanity check on lba_sects: within 10% is OK */
@@ -133,7 +133,7 @@
tail = (lba_sects & 0xffff);
lba_sects = (head | (tail << 16));
if ((lba_sects - chs_sects) < chs_sects/10) {
- driveid->lba_capacity = lba_sects;
+ *(__le32 *)&id[ATA_ID_LBA_CAPACITY] = __cpu_to_le32(lba_sects);
return 1; /* lba_capacity is (now) good */
}
@@ -403,7 +403,7 @@
{
return (id[ATA_ID_COMMAND_SET_2] & 0x0400) &&
(id[ATA_ID_CFS_ENABLE_2] & 0x0400) &&
- ((struct hd_driveid *)id)->lba_capacity_2;
+ ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
}
/*
@@ -456,7 +456,6 @@
static void init_idedisk_capacity(ide_drive_t *drive)
{
- struct hd_driveid *driveid = drive->driveid;
u16 *id = drive->id;
/*
* If this drive supports the Host Protected Area feature set,
@@ -467,13 +466,13 @@
if (idedisk_supports_lba48(id)) {
/* drive speaks 48-bit LBA */
drive->select.b.lba = 1;
- drive->capacity64 = driveid->lba_capacity_2;
+ drive->capacity64 = ata_id_u64(id, ATA_ID_LBA_CAPACITY_2);
if (hpa)
idedisk_check_hpa(drive);
- } else if ((driveid->capability & 2) && lba_capacity_is_ok(id)) {
+ } else if (ata_id_has_lba(id) && lba_capacity_is_ok(id)) {
/* drive speaks 28-bit LBA */
drive->select.b.lba = 1;
- drive->capacity64 = driveid->lba_capacity;
+ drive->capacity64 = ata_id_u32(id, ATA_ID_LBA_CAPACITY);
if (hpa)
idedisk_check_hpa(drive);
} else {
@@ -622,7 +621,7 @@
struct request *rq;
int error;
- if (arg < 0 || arg > drive->driveid->max_multsect)
+ if (arg < 0 || arg > (drive->id[ATA_ID_MAX_MULTSECT] & 0xff))
return -EINVAL;
if (drive->special.b.set_multmode)
@@ -775,8 +774,8 @@
ide_add_setting(drive, "address", SETTING_RW, TYPE_BYTE, 0, 2, 1, 1,
&drive->addressing, set_lba_addressing);
ide_add_setting(drive, "multcount", SETTING_RW, TYPE_BYTE, 0,
- drive->driveid->max_multsect, 1, 1, &drive->mult_count,
- set_multcount);
+ drive->id[ATA_ID_MAX_MULTSECT] & 0xff, 1, 1,
+ &drive->mult_count, set_multcount);
ide_add_setting(drive, "nowerr", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1,
&drive->nowerr, set_nowerr);
ide_add_setting(drive, "lun", SETTING_RW, TYPE_INT, 0, 7, 1, 1,