#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> /** * ide_toggle_bounce - handle bounce buffering * @drive: drive to update * @on: on/off boolean * * Enable or disable bounce buffering for the device. Drives move * between PIO and DMA and that changes the rules we need. */ void ide_toggle_bounce(ide_drive_t *drive, int on){ u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */ if (!PCI_DMA_BUS_IS_PHYS) { addr = BLK_BOUNCE_ANY; } else if (on && drive->media == ide_disk) { struct device *dev = drive->hwif->dev; if (dev && dev->dma_mask) addr = *dev->dma_mask; } if (drive->queue) blk_queue_bounce_limit(drive->queue, addr);} 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_IDX) printk(KERN_CONT "Index "); 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);
#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>
/**
* ide_toggle_bounce - handle bounce buffering
* @drive: drive to update
* @on: on/off boolean
*
* Enable or disable bounce buffering for the device. Drives move
* between PIO and DMA and that changes the rules we need.
*/
void ide_toggle_bounce(ide_drive_t *drive, int on)
{
u64 addr = BLK_BOUNCE_HIGH; /* dma64_addr_t */
if (!PCI_DMA_BUS_IS_PHYS) {
addr = BLK_BOUNCE_ANY;
} else if (on && drive->media == ide_disk) {
struct device *dev = drive->hwif->dev;
if (dev && dev->dma_mask)
addr = *dev->dma_mask;
}
if (drive->queue)
blk_queue_bounce_limit(drive->queue, addr);
}
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_IDX)
printk(KERN_CONT "Index ");
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);