[linux-2.6-block.git] / drivers / ide / ide-lib.c

#include <linux/types.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/export.h>
#include <linux/interrupt.h>
#include <linux/ide.h>
#include <linux/bitops.h>

u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48)
{
	struct ide_taskfile *tf = &cmd->tf;
	u32 high, low;

	low  = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
	if (lba48) {
		tf = &cmd->hob;
		high = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
	} else
		high = tf->device & 0xf;

	return ((u64)high << 24) | low;
}
EXPORT_SYMBOL_GPL(ide_get_lba_addr);

static void ide_dump_sector(ide_drive_t *drive)
{
	struct ide_cmd cmd;
	struct ide_taskfile *tf = &cmd.tf;
	u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);

	memset(&cmd, 0, sizeof(cmd));
	if (lba48) {
		cmd.valid.in.tf  = IDE_VALID_LBA;
		cmd.valid.in.hob = IDE_VALID_LBA;
		cmd.tf_flags = IDE_TFLAG_LBA48;
	} else
		cmd.valid.in.tf  = IDE_VALID_LBA | IDE_VALID_DEVICE;

	ide_tf_readback(drive, &cmd);

	if (lba48 || (tf->device & ATA_LBA))
		printk(KERN_CONT ", LBAsect=%llu",
			(unsigned long long)ide_get_lba_addr(&cmd, lba48));
	else
		printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
			tf->device & 0xf, tf->lbal);
}

static void ide_dump_ata_error(ide_drive_t *drive, u8 err)
{
	printk(KERN_CONT "{ ");
	if (err & ATA_ABORTED)
		printk(KERN_CONT "DriveStatusError ");
	if (err & ATA_ICRC)
		printk(KERN_CONT "%s",
			(err & ATA_ABORTED) ? "BadCRC " : "BadSector ");
	if (err & ATA_UNC)
		printk(KERN_CONT "UncorrectableError ");
	if (err & ATA_IDNF)
		printk(KERN_CONT "SectorIdNotFound ");
	if (err & ATA_TRK0NF)
		printk(KERN_CONT "TrackZeroNotFound ");
	if (err & ATA_AMNF)
		printk(KERN_CONT "AddrMarkNotFound ");
	printk(KERN_CONT "}");
	if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK ||
	    (err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) {
		struct request *rq = drive->hwif->rq;

		ide_dump_sector(drive);

		if (rq)
			printk(KERN_CONT ", sector=%llu",
			       (unsigned long long)blk_rq_pos(rq));
	}
	printk(KERN_CONT "\n");
}

static void ide_dump_atapi_error(ide_drive_t *drive, u8 err)
{
	printk(KERN_CONT "{ ");
	if (err & ATAPI_ILI)
		printk(KERN_CONT "IllegalLengthIndication ");
	if (err & ATAPI_EOM)
		printk(KERN_CONT "EndOfMedia ");
	if (err & ATA_ABORTED)
		printk(KERN_CONT "AbortedCommand ");
	if (err & ATA_MCR)
		printk(KERN_CONT "MediaChangeRequested ");
	if (err & ATAPI_LFS)
		printk(KERN_CONT "LastFailedSense=0x%02x ",
			(err & ATAPI_LFS) >> 4);
	printk(KERN_CONT "}\n");
}

/**
 *	ide_dump_status		-	translate ATA/ATAPI error
 *	@drive: drive that status applies to
 *	@msg: text message to print
 *	@stat: status byte to decode
 *
 *	Error reporting, in human readable form (luxurious, but a memory hog).
 *	Combines the drive name, message and status byte to provide a
 *	user understandable explanation of the device error.
 */

u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat)
{
	u8 err = 0;

	printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat);
	if (stat & ATA_BUSY)
		printk(KERN_CONT "Busy ");
	else {
		if (stat & ATA_DRDY)
			printk(KERN_CONT "DriveReady ");
		if (stat & ATA_DF)
			printk(KERN_CONT "DeviceFault ");
		if (stat & ATA_DSC)
			printk(KERN_CONT "SeekComplete ");
		if (stat & ATA_DRQ)
			printk(KERN_CONT "DataRequest ");
		if (stat & ATA_CORR)
			printk(KERN_CONT "CorrectedError ");
		if (stat & ATA_SENSE)
			printk(KERN_CONT "Sense ");
		if (stat & ATA_ERR)
			printk(KERN_CONT "Error ");
	}
	printk(KERN_CONT "}\n");
	if ((stat & (ATA_BUSY | ATA_ERR)) == ATA_ERR) {
		err = ide_read_error(drive);
		printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err);
		if (drive->media == ide_disk)
			ide_dump_ata_error(drive, err);
		else
			ide_dump_atapi_error(drive, err);
	}

	printk(KERN_ERR "%s: possibly failed opcode: 0x%02x\n",
		drive->name, drive->hwif->cmd.tf.command);

	return err;
}
EXPORT_SYMBOL(ide_dump_status);
Commit	Line	Data
1da177e4 LT	1	#include <linux/types.h>
	2	#include <linux/string.h>
	3	#include <linux/kernel.h>
38789fda	4	#include <linux/export.h>
1da177e4	5	#include <linux/interrupt.h>
1da177e4 LT	6	#include <linux/ide.h>
	7	#include <linux/bitops.h>
	8
745483f1	9	u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48)
c2b57cdc	10	{
745483f1	11	struct ide_taskfile *tf = &cmd->tf;
c2b57cdc BZ	12	u32 high, low;
c2b57cdc BZ	13
c2b57cdc	14	low = (tf->lbah << 16) \| (tf->lbam << 8) \| tf->lbal;
745483f1 SS	15	if (lba48) {
	16	tf = &cmd->hob;
	17	high = (tf->lbah << 16) \| (tf->lbam << 8) \| tf->lbal;
	18	} else
	19	high = tf->device & 0xf;
c2b57cdc BZ	20
	21	return ((u64)high << 24) \| low;
	22	}
a501633c	23	EXPORT_SYMBOL_GPL(ide_get_lba_addr);
c2b57cdc BZ	24
	25	static void ide_dump_sector(ide_drive_t *drive)
	26	{
22aa4b32 BZ	27	struct ide_cmd cmd;
22aa4b32 BZ	28	struct ide_taskfile *tf = &cmd.tf;
97100fc8	29	u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
c2b57cdc	30
22aa4b32	31	memset(&cmd, 0, sizeof(cmd));
60f85019 SS	32	if (lba48) {
	33	cmd.valid.in.tf = IDE_VALID_LBA;
	34	cmd.valid.in.hob = IDE_VALID_LBA;
	35	cmd.tf_flags = IDE_TFLAG_LBA48;
	36	} else
	37	cmd.valid.in.tf = IDE_VALID_LBA \| IDE_VALID_DEVICE;
c2b57cdc	38
3153c26b	39	ide_tf_readback(drive, &cmd);
c2b57cdc BZ	40
c2b57cdc BZ	41	if (lba48 \|\| (tf->device & ATA_LBA))
2f996acb	42	printk(KERN_CONT ", LBAsect=%llu",
745483f1	43	(unsigned long long)ide_get_lba_addr(&cmd, lba48));
c2b57cdc	44	else
2f996acb BZ	45	printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
2f996acb BZ	46	tf->device & 0xf, tf->lbal);
c2b57cdc BZ	47	}
c2b57cdc BZ	48
e62925dd	49	static void ide_dump_ata_error(ide_drive_t *drive, u8 err)
1da177e4	50	{
26bfcf21	51	printk(KERN_CONT "{ ");
2f996acb BZ	52	if (err & ATA_ABORTED)
2f996acb BZ	53	printk(KERN_CONT "DriveStatusError ");
3a7d2484	54	if (err & ATA_ICRC)
2f996acb BZ	55	printk(KERN_CONT "%s",
	56	(err & ATA_ABORTED) ? "BadCRC " : "BadSector ");
	57	if (err & ATA_UNC)
	58	printk(KERN_CONT "UncorrectableError ");
	59	if (err & ATA_IDNF)
	60	printk(KERN_CONT "SectorIdNotFound ");
	61	if (err & ATA_TRK0NF)
	62	printk(KERN_CONT "TrackZeroNotFound ");
	63	if (err & ATA_AMNF)
	64	printk(KERN_CONT "AddrMarkNotFound ");
	65	printk(KERN_CONT "}");
3a7d2484 BZ	66	if ((err & (ATA_BBK \| ATA_ABORTED)) == ATA_BBK \|\|
3a7d2484 BZ	67	(err & (ATA_UNC \| ATA_IDNF \| ATA_AMNF))) {
b65fac32 BZ	68	struct request *rq = drive->hwif->rq;
b65fac32 BZ	69
e62925dd	70	ide_dump_sector(drive);
b65fac32 BZ	71
b65fac32 BZ	72	if (rq)
2f996acb	73	printk(KERN_CONT ", sector=%llu",
9780e2dd	74	(unsigned long long)blk_rq_pos(rq));
1da177e4	75	}
2f996acb	76	printk(KERN_CONT "\n");
e62925dd BZ	77	}
	78
	79	static void ide_dump_atapi_error(ide_drive_t *drive, u8 err)
	80	{
26bfcf21	81	printk(KERN_CONT "{ ");
2f996acb BZ	82	if (err & ATAPI_ILI)
	83	printk(KERN_CONT "IllegalLengthIndication ");
	84	if (err & ATAPI_EOM)
	85	printk(KERN_CONT "EndOfMedia ");
	86	if (err & ATA_ABORTED)
	87	printk(KERN_CONT "AbortedCommand ");
	88	if (err & ATA_MCR)
	89	printk(KERN_CONT "MediaChangeRequested ");
	90	if (err & ATAPI_LFS)
	91	printk(KERN_CONT "LastFailedSense=0x%02x ",
	92	(err & ATAPI_LFS) >> 4);
	93	printk(KERN_CONT "}\n");
1da177e4 LT	94	}
	95
	96	/**
e62925dd	97	* ide_dump_status - translate ATA/ATAPI error
1da177e4 LT	98	* @drive: drive that status applies to
	99	* @msg: text message to print
	100	* @stat: status byte to decode
	101	*
	102	* Error reporting, in human readable form (luxurious, but a memory hog).
e62925dd BZ	103	* Combines the drive name, message and status byte to provide a
e62925dd BZ	104	* user understandable explanation of the device error.
1da177e4 LT	105	*/
1da177e4 LT	106
e62925dd	107	u8 ide_dump_status(ide_drive_t drive, const char msg, u8 stat)
1da177e4	108	{
0e38a66a	109	u8 err = 0;
1da177e4	110
2f996acb	111	printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat);
3a7d2484	112	if (stat & ATA_BUSY)
2f996acb	113	printk(KERN_CONT "Busy ");
1da177e4	114	else {
2f996acb BZ	115	if (stat & ATA_DRDY)
	116	printk(KERN_CONT "DriveReady ");
	117	if (stat & ATA_DF)
	118	printk(KERN_CONT "DeviceFault ");
	119	if (stat & ATA_DSC)
	120	printk(KERN_CONT "SeekComplete ");
	121	if (stat & ATA_DRQ)
	122	printk(KERN_CONT "DataRequest ");
	123	if (stat & ATA_CORR)
	124	printk(KERN_CONT "CorrectedError ");
27f00e53 HR	125	if (stat & ATA_SENSE)
27f00e53 HR	126	printk(KERN_CONT "Sense ");
2f996acb BZ	127	if (stat & ATA_ERR)
2f996acb BZ	128	printk(KERN_CONT "Error ");
1da177e4	129	}
2f996acb	130	printk(KERN_CONT "}\n");
3a7d2484	131	if ((stat & (ATA_BUSY \| ATA_ERR)) == ATA_ERR) {
64a57fe4	132	err = ide_read_error(drive);
2f996acb	133	printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err);
e62925dd BZ	134	if (drive->media == ide_disk)
	135	ide_dump_ata_error(drive, err);
	136	else
	137	ide_dump_atapi_error(drive, err);
1da177e4	138	}
cc30137a BZ	139
	140	printk(KERN_ERR "%s: possibly failed opcode: 0x%02x\n",
	141	drive->name, drive->hwif->cmd.tf.command);
	142
0e38a66a	143	return err;
1da177e4	144	}
1da177e4	145	EXPORT_SYMBOL(ide_dump_status);