From c2b57cdc1d2976444d451a2a2e43e11b61ed0638 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 25 Jan 2008 22:17:17 +0100 Subject: ide: add ide_tf_read() helper * Factor out code reading taskfile registers from ide_end_drive_cmd() to the new ide_tf_read() helper. * Add IDE_TFLAG_IN_* taskfile flags to indicate the need to load particular IDE taskfile register in ide_tf_read(). * Update ide_end_drive_cmd() to set respective IDE_TFLAG_IN_* taksfile flags. * Add ide_get_lba_addr() for getting LBA sector address from taskfile struct. * Factor out code getting sector address from ide_dump_ata_status() to the new ide_dump_sector() function. * Convert ide_dump_sector() to use ide_tf_read() and ide_get_lba_addr(). * Remove no longer needed ide_read_24(). The only change in functionality caused by this patch is that ide_dump_ata_status() no longer prints "high"/"low" parts of LBA48 sector address (of course LBA48 sector address is still printed). Cc: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-lib.c | 69 +++++++++++++++++++++++++++------------------------ 1 file changed, 37 insertions(+), 32 deletions(-) (limited to 'drivers/ide/ide-lib.c') diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c index 001085845a79..15736d4ce9b4 100644 --- a/drivers/ide/ide-lib.c +++ b/drivers/ide/ide-lib.c @@ -479,6 +479,42 @@ static void ide_dump_opcode(ide_drive_t *drive) printk("0x%02x\n", opcode); } +static u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48) +{ + u32 high, low; + + if (lba48) + high = (tf->hob_lbah << 16) | (tf->hob_lbam << 8) | + tf->hob_lbal; + else + high = tf->device & 0xf; + low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal; + + return ((u64)high << 24) | low; +} + +static void ide_dump_sector(ide_drive_t *drive) +{ + ide_task_t task; + struct ide_taskfile *tf = &task.tf; + int lba48 = (drive->addressing == 1) ? 1 : 0; + + memset(&task, 0, sizeof(task)); + if (lba48) + task.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_HOB_LBA | + IDE_TFLAG_LBA48; + else + task.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_DEVICE; + + ide_tf_read(drive, &task); + + if (lba48 || (tf->device & ATA_LBA)) + printk(", LBAsect=%llu", ide_get_lba_addr(tf, lba48)); + else + printk(", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam, + tf->device & 0xf, tf->lbal); +} + static u8 ide_dump_ata_status(ide_drive_t *drive, const char *msg, u8 stat) { ide_hwif_t *hwif = HWIF(drive); @@ -512,38 +548,7 @@ static u8 ide_dump_ata_status(ide_drive_t *drive, const char *msg, u8 stat) printk("}"); if ((err & (BBD_ERR | ABRT_ERR)) == BBD_ERR || (err & (ECC_ERR|ID_ERR|MARK_ERR))) { - if (drive->addressing == 1) { - __u64 sectors = 0; - u32 low = 0, high = 0; - hwif->OUTB(drive->ctl&~0x80, IDE_CONTROL_REG); - low = ide_read_24(drive); - hwif->OUTB(drive->ctl|0x80, IDE_CONTROL_REG); - high = ide_read_24(drive); - sectors = ((__u64)high << 24) | low; - printk(", LBAsect=%llu, high=%d, low=%d", - (unsigned long long) sectors, - high, low); - } else { - u8 sector, lcyl, hcyl, cur; - - sector = hwif->INB(IDE_SECTOR_REG); - lcyl = hwif->INB(IDE_LCYL_REG); - hcyl = hwif->INB(IDE_HCYL_REG); - cur = hwif->INB(IDE_SELECT_REG); - - if (cur & 0x40) { /* using LBA? */ - printk(", LBAsect=%ld", (unsigned long) - ((cur & 0xf) << 24) | - (hcyl << 16) | - (lcyl << 8) | - sector); - } else { - printk(", CHS=%d/%d/%d", - (hcyl << 8) + lcyl, - cur & 0xf, - sector); - } - } + ide_dump_sector(drive); if (HWGROUP(drive) && HWGROUP(drive)->rq) printk(", sector=%llu", (unsigned long long)HWGROUP(drive)->rq->sector); -- cgit v1.2.3