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1da177e4 LT |
1 | #include <linux/types.h> |
2 | #include <linux/string.h> | |
3 | #include <linux/kernel.h> | |
1da177e4 | 4 | #include <linux/interrupt.h> |
1da177e4 LT |
5 | #include <linux/ide.h> |
6 | #include <linux/bitops.h> | |
7 | ||
1da177e4 LT |
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 | */ | |
2f996acb | 16 | |
1da177e4 LT |
17 | void ide_toggle_bounce(ide_drive_t *drive, int on) |
18 | { | |
19 | u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */ | |
20 | ||
6593178d JB |
21 | if (!PCI_DMA_BUS_IS_PHYS) { |
22 | addr = BLK_BOUNCE_ANY; | |
23 | } else if (on && drive->media == ide_disk) { | |
36501650 BZ |
24 | struct device *dev = drive->hwif->dev; |
25 | ||
26 | if (dev && dev->dma_mask) | |
27 | addr = *dev->dma_mask; | |
1da177e4 LT |
28 | } |
29 | ||
30 | if (drive->queue) | |
31 | blk_queue_bounce_limit(drive->queue, addr); | |
32 | } | |
33 | ||
1da177e4 LT |
34 | static void ide_dump_opcode(ide_drive_t *drive) |
35 | { | |
b65fac32 | 36 | struct request *rq = drive->hwif->rq; |
22aa4b32 | 37 | struct ide_cmd *cmd = NULL; |
1da177e4 | 38 | |
1da177e4 LT |
39 | if (!rq) |
40 | return; | |
7267c337 BZ |
41 | |
42 | if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE) | |
22aa4b32 | 43 | cmd = rq->special; |
1da177e4 | 44 | |
2f996acb | 45 | printk(KERN_ERR "ide: failed opcode was: "); |
22aa4b32 | 46 | if (cmd == NULL) |
7267c337 | 47 | printk(KERN_CONT "unknown\n"); |
1da177e4 | 48 | else |
22aa4b32 | 49 | printk(KERN_CONT "0x%02x\n", cmd->tf.command); |
1da177e4 LT |
50 | } |
51 | ||
a501633c | 52 | u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48) |
c2b57cdc BZ |
53 | { |
54 | u32 high, low; | |
55 | ||
56 | if (lba48) | |
57 | high = (tf->hob_lbah << 16) | (tf->hob_lbam << 8) | | |
58 | tf->hob_lbal; | |
59 | else | |
60 | high = tf->device & 0xf; | |
61 | low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal; | |
62 | ||
63 | return ((u64)high << 24) | low; | |
64 | } | |
a501633c | 65 | EXPORT_SYMBOL_GPL(ide_get_lba_addr); |
c2b57cdc BZ |
66 | |
67 | static void ide_dump_sector(ide_drive_t *drive) | |
68 | { | |
22aa4b32 BZ |
69 | struct ide_cmd cmd; |
70 | struct ide_taskfile *tf = &cmd.tf; | |
97100fc8 | 71 | u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48); |
c2b57cdc | 72 | |
22aa4b32 | 73 | memset(&cmd, 0, sizeof(cmd)); |
60f85019 SS |
74 | if (lba48) { |
75 | cmd.valid.in.tf = IDE_VALID_LBA; | |
76 | cmd.valid.in.hob = IDE_VALID_LBA; | |
77 | cmd.tf_flags = IDE_TFLAG_LBA48; | |
78 | } else | |
79 | cmd.valid.in.tf = IDE_VALID_LBA | IDE_VALID_DEVICE; | |
c2b57cdc | 80 | |
22aa4b32 | 81 | drive->hwif->tp_ops->tf_read(drive, &cmd); |
c2b57cdc BZ |
82 | |
83 | if (lba48 || (tf->device & ATA_LBA)) | |
2f996acb | 84 | printk(KERN_CONT ", LBAsect=%llu", |
1c904fcf | 85 | (unsigned long long)ide_get_lba_addr(tf, lba48)); |
c2b57cdc | 86 | else |
2f996acb BZ |
87 | printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam, |
88 | tf->device & 0xf, tf->lbal); | |
c2b57cdc BZ |
89 | } |
90 | ||
e62925dd | 91 | static void ide_dump_ata_error(ide_drive_t *drive, u8 err) |
1da177e4 | 92 | { |
2f996acb BZ |
93 | printk(KERN_ERR "{ "); |
94 | if (err & ATA_ABORTED) | |
95 | printk(KERN_CONT "DriveStatusError "); | |
3a7d2484 | 96 | if (err & ATA_ICRC) |
2f996acb BZ |
97 | printk(KERN_CONT "%s", |
98 | (err & ATA_ABORTED) ? "BadCRC " : "BadSector "); | |
99 | if (err & ATA_UNC) | |
100 | printk(KERN_CONT "UncorrectableError "); | |
101 | if (err & ATA_IDNF) | |
102 | printk(KERN_CONT "SectorIdNotFound "); | |
103 | if (err & ATA_TRK0NF) | |
104 | printk(KERN_CONT "TrackZeroNotFound "); | |
105 | if (err & ATA_AMNF) | |
106 | printk(KERN_CONT "AddrMarkNotFound "); | |
107 | printk(KERN_CONT "}"); | |
3a7d2484 BZ |
108 | if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK || |
109 | (err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) { | |
b65fac32 BZ |
110 | struct request *rq = drive->hwif->rq; |
111 | ||
e62925dd | 112 | ide_dump_sector(drive); |
b65fac32 BZ |
113 | |
114 | if (rq) | |
2f996acb | 115 | printk(KERN_CONT ", sector=%llu", |
b65fac32 | 116 | (unsigned long long)rq->sector); |
1da177e4 | 117 | } |
2f996acb | 118 | printk(KERN_CONT "\n"); |
e62925dd BZ |
119 | } |
120 | ||
121 | static void ide_dump_atapi_error(ide_drive_t *drive, u8 err) | |
122 | { | |
2f996acb BZ |
123 | printk(KERN_ERR "{ "); |
124 | if (err & ATAPI_ILI) | |
125 | printk(KERN_CONT "IllegalLengthIndication "); | |
126 | if (err & ATAPI_EOM) | |
127 | printk(KERN_CONT "EndOfMedia "); | |
128 | if (err & ATA_ABORTED) | |
129 | printk(KERN_CONT "AbortedCommand "); | |
130 | if (err & ATA_MCR) | |
131 | printk(KERN_CONT "MediaChangeRequested "); | |
132 | if (err & ATAPI_LFS) | |
133 | printk(KERN_CONT "LastFailedSense=0x%02x ", | |
134 | (err & ATAPI_LFS) >> 4); | |
135 | printk(KERN_CONT "}\n"); | |
1da177e4 LT |
136 | } |
137 | ||
138 | /** | |
e62925dd | 139 | * ide_dump_status - translate ATA/ATAPI error |
1da177e4 LT |
140 | * @drive: drive that status applies to |
141 | * @msg: text message to print | |
142 | * @stat: status byte to decode | |
143 | * | |
144 | * Error reporting, in human readable form (luxurious, but a memory hog). | |
e62925dd BZ |
145 | * Combines the drive name, message and status byte to provide a |
146 | * user understandable explanation of the device error. | |
1da177e4 LT |
147 | */ |
148 | ||
e62925dd | 149 | u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat) |
1da177e4 | 150 | { |
0e38a66a | 151 | u8 err = 0; |
1da177e4 | 152 | |
2f996acb | 153 | printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat); |
3a7d2484 | 154 | if (stat & ATA_BUSY) |
2f996acb | 155 | printk(KERN_CONT "Busy "); |
1da177e4 | 156 | else { |
2f996acb BZ |
157 | if (stat & ATA_DRDY) |
158 | printk(KERN_CONT "DriveReady "); | |
159 | if (stat & ATA_DF) | |
160 | printk(KERN_CONT "DeviceFault "); | |
161 | if (stat & ATA_DSC) | |
162 | printk(KERN_CONT "SeekComplete "); | |
163 | if (stat & ATA_DRQ) | |
164 | printk(KERN_CONT "DataRequest "); | |
165 | if (stat & ATA_CORR) | |
166 | printk(KERN_CONT "CorrectedError "); | |
167 | if (stat & ATA_IDX) | |
168 | printk(KERN_CONT "Index "); | |
169 | if (stat & ATA_ERR) | |
170 | printk(KERN_CONT "Error "); | |
1da177e4 | 171 | } |
2f996acb | 172 | printk(KERN_CONT "}\n"); |
3a7d2484 | 173 | if ((stat & (ATA_BUSY | ATA_ERR)) == ATA_ERR) { |
64a57fe4 | 174 | err = ide_read_error(drive); |
2f996acb | 175 | printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err); |
e62925dd BZ |
176 | if (drive->media == ide_disk) |
177 | ide_dump_ata_error(drive, err); | |
178 | else | |
179 | ide_dump_atapi_error(drive, err); | |
1da177e4 LT |
180 | } |
181 | ide_dump_opcode(drive); | |
0e38a66a | 182 | return err; |
1da177e4 | 183 | } |
1da177e4 | 184 | EXPORT_SYMBOL(ide_dump_status); |