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1// SPDX-License-Identifier: GPL-2.0-only
2#include <linux/types.h>
3#include <linux/string.h>
4#include <linux/kernel.h>
5#include <linux/export.h>
6#include <linux/interrupt.h>
7#include <linux/ide.h>
8#include <linux/bitops.h>
9
10u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48)
11{
12 struct ide_taskfile *tf = &cmd->tf;
13 u32 high, low;
14
15 low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
16 if (lba48) {
17 tf = &cmd->hob;
18 high = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
19 } else
20 high = tf->device & 0xf;
21
22 return ((u64)high << 24) | low;
23}
24EXPORT_SYMBOL_GPL(ide_get_lba_addr);
25
26static void ide_dump_sector(ide_drive_t *drive)
27{
28 struct ide_cmd cmd;
29 struct ide_taskfile *tf = &cmd.tf;
30 u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
31
32 memset(&cmd, 0, sizeof(cmd));
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;
39
40 ide_tf_readback(drive, &cmd);
41
42 if (lba48 || (tf->device & ATA_LBA))
43 printk(KERN_CONT ", LBAsect=%llu",
44 (unsigned long long)ide_get_lba_addr(&cmd, lba48));
45 else
46 printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
47 tf->device & 0xf, tf->lbal);
48}
49
50static void ide_dump_ata_error(ide_drive_t *drive, u8 err)
51{
52 printk(KERN_CONT "{ ");
53 if (err & ATA_ABORTED)
54 printk(KERN_CONT "DriveStatusError ");
55 if (err & ATA_ICRC)
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 "}");
67 if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK ||
68 (err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) {
69 struct request *rq = drive->hwif->rq;
70
71 ide_dump_sector(drive);
72
73 if (rq)
74 printk(KERN_CONT ", sector=%llu",
75 (unsigned long long)blk_rq_pos(rq));
76 }
77 printk(KERN_CONT "\n");
78}
79
80static void ide_dump_atapi_error(ide_drive_t *drive, u8 err)
81{
82 printk(KERN_CONT "{ ");
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");
95}
96
97/**
98 * ide_dump_status - translate ATA/ATAPI error
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).
104 * Combines the drive name, message and status byte to provide a
105 * user understandable explanation of the device error.
106 */
107
108u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat)
109{
110 u8 err = 0;
111
112 printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat);
113 if (stat & ATA_BUSY)
114 printk(KERN_CONT "Busy ");
115 else {
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 ");
126 if (stat & ATA_SENSE)
127 printk(KERN_CONT "Sense ");
128 if (stat & ATA_ERR)
129 printk(KERN_CONT "Error ");
130 }
131 printk(KERN_CONT "}\n");
132 if ((stat & (ATA_BUSY | ATA_ERR)) == ATA_ERR) {
133 err = ide_read_error(drive);
134 printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err);
135 if (drive->media == ide_disk)
136 ide_dump_ata_error(drive, err);
137 else
138 ide_dump_atapi_error(drive, err);
139 }
140
141 printk(KERN_ERR "%s: possibly failed opcode: 0x%02x\n",
142 drive->name, drive->hwif->cmd.tf.command);
143
144 return err;
145}
146EXPORT_SYMBOL(ide_dump_status);
1#include <linux/types.h>
2#include <linux/string.h>
3#include <linux/kernel.h>
4#include <linux/interrupt.h>
5#include <linux/ide.h>
6#include <linux/bitops.h>
7
8/**
9 * ide_toggle_bounce - handle bounce buffering
10 * @drive: drive to update
11 * @on: on/off boolean
12 *
13 * Enable or disable bounce buffering for the device. Drives move
14 * between PIO and DMA and that changes the rules we need.
15 */
16
17void ide_toggle_bounce(ide_drive_t *drive, int on)
18{
19 u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */
20
21 if (!PCI_DMA_BUS_IS_PHYS) {
22 addr = BLK_BOUNCE_ANY;
23 } else if (on && drive->media == ide_disk) {
24 struct device *dev = drive->hwif->dev;
25
26 if (dev && dev->dma_mask)
27 addr = *dev->dma_mask;
28 }
29
30 if (drive->queue)
31 blk_queue_bounce_limit(drive->queue, addr);
32}
33
34u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48)
35{
36 struct ide_taskfile *tf = &cmd->tf;
37 u32 high, low;
38
39 low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
40 if (lba48) {
41 tf = &cmd->hob;
42 high = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
43 } else
44 high = tf->device & 0xf;
45
46 return ((u64)high << 24) | low;
47}
48EXPORT_SYMBOL_GPL(ide_get_lba_addr);
49
50static void ide_dump_sector(ide_drive_t *drive)
51{
52 struct ide_cmd cmd;
53 struct ide_taskfile *tf = &cmd.tf;
54 u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
55
56 memset(&cmd, 0, sizeof(cmd));
57 if (lba48) {
58 cmd.valid.in.tf = IDE_VALID_LBA;
59 cmd.valid.in.hob = IDE_VALID_LBA;
60 cmd.tf_flags = IDE_TFLAG_LBA48;
61 } else
62 cmd.valid.in.tf = IDE_VALID_LBA | IDE_VALID_DEVICE;
63
64 ide_tf_readback(drive, &cmd);
65
66 if (lba48 || (tf->device & ATA_LBA))
67 printk(KERN_CONT ", LBAsect=%llu",
68 (unsigned long long)ide_get_lba_addr(&cmd, lba48));
69 else
70 printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
71 tf->device & 0xf, tf->lbal);
72}
73
74static void ide_dump_ata_error(ide_drive_t *drive, u8 err)
75{
76 printk(KERN_CONT "{ ");
77 if (err & ATA_ABORTED)
78 printk(KERN_CONT "DriveStatusError ");
79 if (err & ATA_ICRC)
80 printk(KERN_CONT "%s",
81 (err & ATA_ABORTED) ? "BadCRC " : "BadSector ");
82 if (err & ATA_UNC)
83 printk(KERN_CONT "UncorrectableError ");
84 if (err & ATA_IDNF)
85 printk(KERN_CONT "SectorIdNotFound ");
86 if (err & ATA_TRK0NF)
87 printk(KERN_CONT "TrackZeroNotFound ");
88 if (err & ATA_AMNF)
89 printk(KERN_CONT "AddrMarkNotFound ");
90 printk(KERN_CONT "}");
91 if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK ||
92 (err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) {
93 struct request *rq = drive->hwif->rq;
94
95 ide_dump_sector(drive);
96
97 if (rq)
98 printk(KERN_CONT ", sector=%llu",
99 (unsigned long long)blk_rq_pos(rq));
100 }
101 printk(KERN_CONT "\n");
102}
103
104static void ide_dump_atapi_error(ide_drive_t *drive, u8 err)
105{
106 printk(KERN_CONT "{ ");
107 if (err & ATAPI_ILI)
108 printk(KERN_CONT "IllegalLengthIndication ");
109 if (err & ATAPI_EOM)
110 printk(KERN_CONT "EndOfMedia ");
111 if (err & ATA_ABORTED)
112 printk(KERN_CONT "AbortedCommand ");
113 if (err & ATA_MCR)
114 printk(KERN_CONT "MediaChangeRequested ");
115 if (err & ATAPI_LFS)
116 printk(KERN_CONT "LastFailedSense=0x%02x ",
117 (err & ATAPI_LFS) >> 4);
118 printk(KERN_CONT "}\n");
119}
120
121/**
122 * ide_dump_status - translate ATA/ATAPI error
123 * @drive: drive that status applies to
124 * @msg: text message to print
125 * @stat: status byte to decode
126 *
127 * Error reporting, in human readable form (luxurious, but a memory hog).
128 * Combines the drive name, message and status byte to provide a
129 * user understandable explanation of the device error.
130 */
131
132u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat)
133{
134 u8 err = 0;
135
136 printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat);
137 if (stat & ATA_BUSY)
138 printk(KERN_CONT "Busy ");
139 else {
140 if (stat & ATA_DRDY)
141 printk(KERN_CONT "DriveReady ");
142 if (stat & ATA_DF)
143 printk(KERN_CONT "DeviceFault ");
144 if (stat & ATA_DSC)
145 printk(KERN_CONT "SeekComplete ");
146 if (stat & ATA_DRQ)
147 printk(KERN_CONT "DataRequest ");
148 if (stat & ATA_CORR)
149 printk(KERN_CONT "CorrectedError ");
150 if (stat & ATA_IDX)
151 printk(KERN_CONT "Index ");
152 if (stat & ATA_ERR)
153 printk(KERN_CONT "Error ");
154 }
155 printk(KERN_CONT "}\n");
156 if ((stat & (ATA_BUSY | ATA_ERR)) == ATA_ERR) {
157 err = ide_read_error(drive);
158 printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err);
159 if (drive->media == ide_disk)
160 ide_dump_ata_error(drive, err);
161 else
162 ide_dump_atapi_error(drive, err);
163 }
164
165 printk(KERN_ERR "%s: possibly failed opcode: 0x%02x\n",
166 drive->name, drive->hwif->cmd.tf.command);
167
168 return err;
169}
170EXPORT_SYMBOL(ide_dump_status);