Commit | Line | Data |
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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 | ||
1da177e4 LT |
9 | /** |
10 | * ide_toggle_bounce - handle bounce buffering | |
11 | * @drive: drive to update | |
12 | * @on: on/off boolean | |
13 | * | |
14 | * Enable or disable bounce buffering for the device. Drives move | |
15 | * between PIO and DMA and that changes the rules we need. | |
16 | */ | |
2f996acb | 17 | |
1da177e4 LT |
18 | void ide_toggle_bounce(ide_drive_t *drive, int on) |
19 | { | |
20 | u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */ | |
21 | ||
6593178d JB |
22 | if (!PCI_DMA_BUS_IS_PHYS) { |
23 | addr = BLK_BOUNCE_ANY; | |
24 | } else if (on && drive->media == ide_disk) { | |
36501650 BZ |
25 | struct device *dev = drive->hwif->dev; |
26 | ||
27 | if (dev && dev->dma_mask) | |
28 | addr = *dev->dma_mask; | |
1da177e4 LT |
29 | } |
30 | ||
31 | if (drive->queue) | |
32 | blk_queue_bounce_limit(drive->queue, addr); | |
33 | } | |
34 | ||
745483f1 | 35 | u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48) |
c2b57cdc | 36 | { |
745483f1 | 37 | struct ide_taskfile *tf = &cmd->tf; |
c2b57cdc BZ |
38 | u32 high, low; |
39 | ||
c2b57cdc | 40 | low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal; |
745483f1 SS |
41 | if (lba48) { |
42 | tf = &cmd->hob; | |
43 | high = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal; | |
44 | } else | |
45 | high = tf->device & 0xf; | |
c2b57cdc BZ |
46 | |
47 | return ((u64)high << 24) | low; | |
48 | } | |
a501633c | 49 | EXPORT_SYMBOL_GPL(ide_get_lba_addr); |
c2b57cdc BZ |
50 | |
51 | static void ide_dump_sector(ide_drive_t *drive) | |
52 | { | |
22aa4b32 BZ |
53 | struct ide_cmd cmd; |
54 | struct ide_taskfile *tf = &cmd.tf; | |
97100fc8 | 55 | u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48); |
c2b57cdc | 56 | |
22aa4b32 | 57 | memset(&cmd, 0, sizeof(cmd)); |
60f85019 SS |
58 | if (lba48) { |
59 | cmd.valid.in.tf = IDE_VALID_LBA; | |
60 | cmd.valid.in.hob = IDE_VALID_LBA; | |
61 | cmd.tf_flags = IDE_TFLAG_LBA48; | |
62 | } else | |
63 | cmd.valid.in.tf = IDE_VALID_LBA | IDE_VALID_DEVICE; | |
c2b57cdc | 64 | |
3153c26b | 65 | ide_tf_readback(drive, &cmd); |
c2b57cdc BZ |
66 | |
67 | if (lba48 || (tf->device & ATA_LBA)) | |
2f996acb | 68 | printk(KERN_CONT ", LBAsect=%llu", |
745483f1 | 69 | (unsigned long long)ide_get_lba_addr(&cmd, lba48)); |
c2b57cdc | 70 | else |
2f996acb BZ |
71 | printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam, |
72 | tf->device & 0xf, tf->lbal); | |
c2b57cdc BZ |
73 | } |
74 | ||
e62925dd | 75 | static void ide_dump_ata_error(ide_drive_t *drive, u8 err) |
1da177e4 | 76 | { |
26bfcf21 | 77 | printk(KERN_CONT "{ "); |
2f996acb BZ |
78 | if (err & ATA_ABORTED) |
79 | printk(KERN_CONT "DriveStatusError "); | |
3a7d2484 | 80 | if (err & ATA_ICRC) |
2f996acb BZ |
81 | printk(KERN_CONT "%s", |
82 | (err & ATA_ABORTED) ? "BadCRC " : "BadSector "); | |
83 | if (err & ATA_UNC) | |
84 | printk(KERN_CONT "UncorrectableError "); | |
85 | if (err & ATA_IDNF) | |
86 | printk(KERN_CONT "SectorIdNotFound "); | |
87 | if (err & ATA_TRK0NF) | |
88 | printk(KERN_CONT "TrackZeroNotFound "); | |
89 | if (err & ATA_AMNF) | |
90 | printk(KERN_CONT "AddrMarkNotFound "); | |
91 | printk(KERN_CONT "}"); | |
3a7d2484 BZ |
92 | if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK || |
93 | (err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) { | |
b65fac32 BZ |
94 | struct request *rq = drive->hwif->rq; |
95 | ||
e62925dd | 96 | ide_dump_sector(drive); |
b65fac32 BZ |
97 | |
98 | if (rq) | |
2f996acb | 99 | printk(KERN_CONT ", sector=%llu", |
9780e2dd | 100 | (unsigned long long)blk_rq_pos(rq)); |
1da177e4 | 101 | } |
2f996acb | 102 | printk(KERN_CONT "\n"); |
e62925dd BZ |
103 | } |
104 | ||
105 | static void ide_dump_atapi_error(ide_drive_t *drive, u8 err) | |
106 | { | |
26bfcf21 | 107 | printk(KERN_CONT "{ "); |
2f996acb BZ |
108 | if (err & ATAPI_ILI) |
109 | printk(KERN_CONT "IllegalLengthIndication "); | |
110 | if (err & ATAPI_EOM) | |
111 | printk(KERN_CONT "EndOfMedia "); | |
112 | if (err & ATA_ABORTED) | |
113 | printk(KERN_CONT "AbortedCommand "); | |
114 | if (err & ATA_MCR) | |
115 | printk(KERN_CONT "MediaChangeRequested "); | |
116 | if (err & ATAPI_LFS) | |
117 | printk(KERN_CONT "LastFailedSense=0x%02x ", | |
118 | (err & ATAPI_LFS) >> 4); | |
119 | printk(KERN_CONT "}\n"); | |
1da177e4 LT |
120 | } |
121 | ||
122 | /** | |
e62925dd | 123 | * ide_dump_status - translate ATA/ATAPI error |
1da177e4 LT |
124 | * @drive: drive that status applies to |
125 | * @msg: text message to print | |
126 | * @stat: status byte to decode | |
127 | * | |
128 | * Error reporting, in human readable form (luxurious, but a memory hog). | |
e62925dd BZ |
129 | * Combines the drive name, message and status byte to provide a |
130 | * user understandable explanation of the device error. | |
1da177e4 LT |
131 | */ |
132 | ||
e62925dd | 133 | u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat) |
1da177e4 | 134 | { |
0e38a66a | 135 | u8 err = 0; |
1da177e4 | 136 | |
2f996acb | 137 | printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat); |
3a7d2484 | 138 | if (stat & ATA_BUSY) |
2f996acb | 139 | printk(KERN_CONT "Busy "); |
1da177e4 | 140 | else { |
2f996acb BZ |
141 | if (stat & ATA_DRDY) |
142 | printk(KERN_CONT "DriveReady "); | |
143 | if (stat & ATA_DF) | |
144 | printk(KERN_CONT "DeviceFault "); | |
145 | if (stat & ATA_DSC) | |
146 | printk(KERN_CONT "SeekComplete "); | |
147 | if (stat & ATA_DRQ) | |
148 | printk(KERN_CONT "DataRequest "); | |
149 | if (stat & ATA_CORR) | |
150 | printk(KERN_CONT "CorrectedError "); | |
27f00e53 HR |
151 | if (stat & ATA_SENSE) |
152 | printk(KERN_CONT "Sense "); | |
2f996acb BZ |
153 | if (stat & ATA_ERR) |
154 | printk(KERN_CONT "Error "); | |
1da177e4 | 155 | } |
2f996acb | 156 | printk(KERN_CONT "}\n"); |
3a7d2484 | 157 | if ((stat & (ATA_BUSY | ATA_ERR)) == ATA_ERR) { |
64a57fe4 | 158 | err = ide_read_error(drive); |
2f996acb | 159 | printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err); |
e62925dd BZ |
160 | if (drive->media == ide_disk) |
161 | ide_dump_ata_error(drive, err); | |
162 | else | |
163 | ide_dump_atapi_error(drive, err); | |
1da177e4 | 164 | } |
cc30137a BZ |
165 | |
166 | printk(KERN_ERR "%s: possibly failed opcode: 0x%02x\n", | |
167 | drive->name, drive->hwif->cmd.tf.command); | |
168 | ||
0e38a66a | 169 | return err; |
1da177e4 | 170 | } |
1da177e4 | 171 | EXPORT_SYMBOL(ide_dump_status); |