1 #include <linux/types.h>
2 #include <linux/string.h>
3 #include <linux/kernel.h>
4 #include <linux/interrupt.h>
6 #include <linux/bitops.h>
9 * ide_toggle_bounce - handle bounce buffering
10 * @drive: drive to update
13 * Enable or disable bounce buffering for the device. Drives move
14 * between PIO and DMA and that changes the rules we need.
17 void ide_toggle_bounce(ide_drive_t *drive, int on)
19 u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */
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;
26 if (dev && dev->dma_mask)
27 addr = *dev->dma_mask;
31 blk_queue_bounce_limit(drive->queue, addr);
34 static void ide_dump_opcode(ide_drive_t *drive)
36 struct request *rq = drive->hwif->rq;
37 ide_task_t *task = NULL;
42 if (rq->cmd_type == REQ_TYPE_ATA_TASKFILE)
45 printk(KERN_ERR "ide: failed opcode was: ");
47 printk(KERN_CONT "unknown\n");
49 printk(KERN_CONT "0x%02x\n", task->tf.command);
52 u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48)
57 high = (tf->hob_lbah << 16) | (tf->hob_lbam << 8) |
60 high = tf->device & 0xf;
61 low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
63 return ((u64)high << 24) | low;
65 EXPORT_SYMBOL_GPL(ide_get_lba_addr);
67 static void ide_dump_sector(ide_drive_t *drive)
70 struct ide_taskfile *tf = &task.tf;
71 u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48);
73 memset(&task, 0, sizeof(task));
75 task.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_HOB_LBA |
78 task.tf_flags = IDE_TFLAG_IN_LBA | IDE_TFLAG_IN_DEVICE;
80 drive->hwif->tp_ops->tf_read(drive, &task);
82 if (lba48 || (tf->device & ATA_LBA))
83 printk(KERN_CONT ", LBAsect=%llu",
84 (unsigned long long)ide_get_lba_addr(tf, lba48));
86 printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam,
87 tf->device & 0xf, tf->lbal);
90 static void ide_dump_ata_error(ide_drive_t *drive, u8 err)
92 printk(KERN_ERR "{ ");
93 if (err & ATA_ABORTED)
94 printk(KERN_CONT "DriveStatusError ");
96 printk(KERN_CONT "%s",
97 (err & ATA_ABORTED) ? "BadCRC " : "BadSector ");
99 printk(KERN_CONT "UncorrectableError ");
101 printk(KERN_CONT "SectorIdNotFound ");
102 if (err & ATA_TRK0NF)
103 printk(KERN_CONT "TrackZeroNotFound ");
105 printk(KERN_CONT "AddrMarkNotFound ");
106 printk(KERN_CONT "}");
107 if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK ||
108 (err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) {
109 struct request *rq = drive->hwif->rq;
111 ide_dump_sector(drive);
114 printk(KERN_CONT ", sector=%llu",
115 (unsigned long long)rq->sector);
117 printk(KERN_CONT "\n");
120 static void ide_dump_atapi_error(ide_drive_t *drive, u8 err)
122 printk(KERN_ERR "{ ");
124 printk(KERN_CONT "IllegalLengthIndication ");
126 printk(KERN_CONT "EndOfMedia ");
127 if (err & ATA_ABORTED)
128 printk(KERN_CONT "AbortedCommand ");
130 printk(KERN_CONT "MediaChangeRequested ");
132 printk(KERN_CONT "LastFailedSense=0x%02x ",
133 (err & ATAPI_LFS) >> 4);
134 printk(KERN_CONT "}\n");
138 * ide_dump_status - translate ATA/ATAPI error
139 * @drive: drive that status applies to
140 * @msg: text message to print
141 * @stat: status byte to decode
143 * Error reporting, in human readable form (luxurious, but a memory hog).
144 * Combines the drive name, message and status byte to provide a
145 * user understandable explanation of the device error.
148 u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat)
152 printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat);
154 printk(KERN_CONT "Busy ");
157 printk(KERN_CONT "DriveReady ");
159 printk(KERN_CONT "DeviceFault ");
161 printk(KERN_CONT "SeekComplete ");
163 printk(KERN_CONT "DataRequest ");
165 printk(KERN_CONT "CorrectedError ");
167 printk(KERN_CONT "Index ");
169 printk(KERN_CONT "Error ");
171 printk(KERN_CONT "}\n");
172 if ((stat & (ATA_BUSY | ATA_ERR)) == ATA_ERR) {
173 err = ide_read_error(drive);
174 printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err);
175 if (drive->media == ide_disk)
176 ide_dump_ata_error(drive, err);
178 ide_dump_atapi_error(drive, err);
180 ide_dump_opcode(drive);
183 EXPORT_SYMBOL(ide_dump_status);