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

// SPDX-License-Identifier: GPL-2.0-only
#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
457c8996	1	// SPDX-License-Identifier: GPL-2.0-only
1da177e4 LT	2	#include <linux/types.h>
	3	#include <linux/string.h>
	4	#include <linux/kernel.h>
38789fda	5	#include <linux/export.h>
1da177e4	6	#include <linux/interrupt.h>
1da177e4 LT	7	#include <linux/ide.h>
	8	#include <linux/bitops.h>
	9
745483f1	10	u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48)
c2b57cdc	11	{
745483f1	12	struct ide_taskfile *tf = &cmd->tf;
c2b57cdc BZ	13	u32 high, low;
c2b57cdc BZ	14
c2b57cdc	15	low = (tf->lbah << 16) \| (tf->lbam << 8) \| tf->lbal;
745483f1 SS	16	if (lba48) {
	17	tf = &cmd->hob;
	18	high = (tf->lbah << 16) \| (tf->lbam << 8) \| tf->lbal;
	19	} else
	20	high = tf->device & 0xf;
c2b57cdc BZ	21
	22	return ((u64)high << 24) \| low;
	23	}
a501633c	24	EXPORT_SYMBOL_GPL(ide_get_lba_addr);
c2b57cdc BZ	25
	26	static void ide_dump_sector(ide_drive_t *drive)
	27	{
22aa4b32 BZ	28	struct ide_cmd cmd;
22aa4b32 BZ	29	struct ide_taskfile *tf = &cmd.tf;
97100fc8	30	u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
c2b57cdc	31
22aa4b32	32	memset(&cmd, 0, sizeof(cmd));
60f85019 SS	33	if (lba48) {
	34	cmd.valid.in.tf = IDE_VALID_LBA;
	35	cmd.valid.in.hob = IDE_VALID_LBA;
	36	cmd.tf_flags = IDE_TFLAG_LBA48;
	37	} else
	38	cmd.valid.in.tf = IDE_VALID_LBA \| IDE_VALID_DEVICE;
c2b57cdc	39
3153c26b	40	ide_tf_readback(drive, &cmd);
c2b57cdc BZ	41
c2b57cdc BZ	42	if (lba48 \|\| (tf->device & ATA_LBA))
2f996acb	43	printk(KERN_CONT ", LBAsect=%llu",
745483f1	44	(unsigned long long)ide_get_lba_addr(&cmd, lba48));
c2b57cdc	45	else
2f996acb BZ	46	printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
2f996acb BZ	47	tf->device & 0xf, tf->lbal);
c2b57cdc BZ	48	}
c2b57cdc BZ	49
e62925dd	50	static void ide_dump_ata_error(ide_drive_t *drive, u8 err)
1da177e4	51	{
26bfcf21	52	printk(KERN_CONT "{ ");
2f996acb BZ	53	if (err & ATA_ABORTED)
2f996acb BZ	54	printk(KERN_CONT "DriveStatusError ");
3a7d2484	55	if (err & ATA_ICRC)
2f996acb BZ	56	printk(KERN_CONT "%s",
	57	(err & ATA_ABORTED) ? "BadCRC " : "BadSector ");
	58	if (err & ATA_UNC)
	59	printk(KERN_CONT "UncorrectableError ");
	60	if (err & ATA_IDNF)
	61	printk(KERN_CONT "SectorIdNotFound ");
	62	if (err & ATA_TRK0NF)
	63	printk(KERN_CONT "TrackZeroNotFound ");
	64	if (err & ATA_AMNF)
	65	printk(KERN_CONT "AddrMarkNotFound ");
	66	printk(KERN_CONT "}");
3a7d2484 BZ	67	if ((err & (ATA_BBK \| ATA_ABORTED)) == ATA_BBK \|\|
3a7d2484 BZ	68	(err & (ATA_UNC \| ATA_IDNF \| ATA_AMNF))) {
b65fac32 BZ	69	struct request *rq = drive->hwif->rq;
b65fac32 BZ	70
e62925dd	71	ide_dump_sector(drive);
b65fac32 BZ	72
b65fac32 BZ	73	if (rq)
2f996acb	74	printk(KERN_CONT ", sector=%llu",
9780e2dd	75	(unsigned long long)blk_rq_pos(rq));
1da177e4	76	}
2f996acb	77	printk(KERN_CONT "\n");
e62925dd BZ	78	}
	79
	80	static void ide_dump_atapi_error(ide_drive_t *drive, u8 err)
	81	{
26bfcf21	82	printk(KERN_CONT "{ ");
2f996acb BZ	83	if (err & ATAPI_ILI)
	84	printk(KERN_CONT "IllegalLengthIndication ");
	85	if (err & ATAPI_EOM)
	86	printk(KERN_CONT "EndOfMedia ");
	87	if (err & ATA_ABORTED)
	88	printk(KERN_CONT "AbortedCommand ");
	89	if (err & ATA_MCR)
	90	printk(KERN_CONT "MediaChangeRequested ");
	91	if (err & ATAPI_LFS)
	92	printk(KERN_CONT "LastFailedSense=0x%02x ",
	93	(err & ATAPI_LFS) >> 4);
	94	printk(KERN_CONT "}\n");
1da177e4 LT	95	}
	96
	97	/**
e62925dd	98	* ide_dump_status - translate ATA/ATAPI error
1da177e4 LT	99	* @drive: drive that status applies to
	100	* @msg: text message to print
	101	* @stat: status byte to decode
	102	*
	103	* Error reporting, in human readable form (luxurious, but a memory hog).
e62925dd BZ	104	* Combines the drive name, message and status byte to provide a
e62925dd BZ	105	* user understandable explanation of the device error.
1da177e4 LT	106	*/
1da177e4 LT	107
e62925dd	108	u8 ide_dump_status(ide_drive_t drive, const char msg, u8 stat)
1da177e4	109	{
0e38a66a	110	u8 err = 0;
1da177e4	111
2f996acb	112	printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat);
3a7d2484	113	if (stat & ATA_BUSY)
2f996acb	114	printk(KERN_CONT "Busy ");
1da177e4	115	else {
2f996acb BZ	116	if (stat & ATA_DRDY)
	117	printk(KERN_CONT "DriveReady ");
	118	if (stat & ATA_DF)
	119	printk(KERN_CONT "DeviceFault ");
	120	if (stat & ATA_DSC)
	121	printk(KERN_CONT "SeekComplete ");
	122	if (stat & ATA_DRQ)
	123	printk(KERN_CONT "DataRequest ");
	124	if (stat & ATA_CORR)
	125	printk(KERN_CONT "CorrectedError ");
27f00e53 HR	126	if (stat & ATA_SENSE)
27f00e53 HR	127	printk(KERN_CONT "Sense ");
2f996acb BZ	128	if (stat & ATA_ERR)
2f996acb BZ	129	printk(KERN_CONT "Error ");
1da177e4	130	}
2f996acb	131	printk(KERN_CONT "}\n");
3a7d2484	132	if ((stat & (ATA_BUSY \| ATA_ERR)) == ATA_ERR) {
64a57fe4	133	err = ide_read_error(drive);
2f996acb	134	printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err);
e62925dd BZ	135	if (drive->media == ide_disk)
	136	ide_dump_ata_error(drive, err);
	137	else
	138	ide_dump_atapi_error(drive, err);
1da177e4	139	}
cc30137a BZ	140
	141	printk(KERN_ERR "%s: possibly failed opcode: 0x%02x\n",
	142	drive->name, drive->hwif->cmd.tf.command);
	143
0e38a66a	144	return err;
1da177e4	145	}
1da177e4	146	EXPORT_SYMBOL(ide_dump_status);