* Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov>
* Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org>
* Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de>
- * Copyright (C) 2005, 2007 Bartlomiej Zolnierkiewicz
+ * Copyright (C) 2005, 2007-2009 Bartlomiej Zolnierkiewicz
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
* See Documentation/cdrom/ide-cd for usage information.
*
* Suggestions are welcome. Patches that work are more welcome though. ;-)
- * For those wishing to work on this driver, please be sure you download
- * and comply with the latest Mt. Fuji (SFF8090 version 4) and ATAPI
- * (SFF-8020i rev 2.6) standards. These documents can be obtained by
- * anonymous ftp from:
- * ftp://fission.dt.wdc.com/pub/standards/SFF_atapi/spec/SFF8020-r2.6/PS/8020r26.ps
- * ftp://ftp.avc-pioneer.com/Mtfuji4/Spec/Fuji4r10.pdf
+ *
+ * Documentation:
+ * Mt. Fuji (SFF8090 version 4) and ATAPI (SFF-8020i rev 2.6) standards.
*
* For historical changelog please see:
* Documentation/ide/ChangeLog.ide-cd.1994-2004
{
int log = 0;
- ide_debug_log(IDE_DBG_SENSE, "Call %s, sense_key: 0x%x\n", __func__,
- sense->sense_key);
+ ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key);
if (!sense || !rq || (rq->cmd_flags & REQ_QUIET))
return 0;
unsigned long bio_sectors;
struct cdrom_info *info = drive->driver_data;
- ide_debug_log(IDE_DBG_SENSE, "Call %s, error_code: 0x%x, "
- "sense_key: 0x%x\n", __func__, sense->error_code,
- sense->sense_key);
+ ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x",
+ sense->error_code, sense->sense_key);
if (failed_command)
- ide_debug_log(IDE_DBG_SENSE, "%s: failed cmd: 0x%x\n",
- __func__, failed_command->cmd[0]);
+ ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x",
+ failed_command->cmd[0]);
if (!cdrom_log_sense(drive, failed_command, sense))
return;
struct request *failed_command)
{
struct cdrom_info *info = drive->driver_data;
- struct request *rq = &info->request_sense_request;
+ struct request *rq = &drive->request_sense_rq;
- ide_debug_log(IDE_DBG_SENSE, "Call %s\n", __func__);
+ ide_debug_log(IDE_DBG_SENSE, "enter");
if (sense == NULL)
sense = &info->sense_data;
rq->buffer = (void *) failed_command;
if (failed_command)
- ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x\n",
- failed_command->cmd[0]);
+ ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x",
+ failed_command->cmd[0]);
drive->hwif->rq = NULL;
elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0);
}
-static void cdrom_end_request(ide_drive_t *drive, int uptodate)
+static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq)
{
- struct request *rq = drive->hwif->rq;
- int nsectors = rq->hard_cur_sectors;
-
- ide_debug_log(IDE_DBG_FUNC, "Call %s, cmd: 0x%x, uptodate: 0x%x, "
- "nsectors: %d\n", __func__, rq->cmd[0], uptodate,
- nsectors);
-
- if (blk_sense_request(rq) && uptodate) {
- /*
- * For REQ_TYPE_SENSE, "rq->buffer" points to the original
- * failed request
- */
- struct request *failed = (struct request *) rq->buffer;
- struct cdrom_info *info = drive->driver_data;
- void *sense = &info->sense_data;
-
- if (failed) {
- if (failed->sense) {
- sense = failed->sense;
- failed->sense_len = rq->sense_len;
- }
- cdrom_analyze_sense_data(drive, failed, sense);
- /*
- * now end the failed request
- */
- if (blk_fs_request(failed)) {
- if (ide_end_dequeued_request(drive, failed, 0,
- failed->hard_nr_sectors))
- BUG();
- } else {
- if (blk_end_request(failed, -EIO,
- failed->data_len))
- BUG();
- }
- } else
- cdrom_analyze_sense_data(drive, NULL, sense);
- }
-
- if (!rq->current_nr_sectors && blk_fs_request(rq))
- uptodate = 1;
- /* make sure it's fully ended */
- if (blk_pc_request(rq))
- nsectors = (rq->data_len + 511) >> 9;
- if (!nsectors)
- nsectors = 1;
-
- ide_debug_log(IDE_DBG_FUNC, "Exit %s, uptodate: 0x%x, nsectors: %d\n",
- __func__, uptodate, nsectors);
+ /*
+ * For REQ_TYPE_SENSE, "rq->buffer" points to the original
+ * failed request
+ */
+ struct request *failed = (struct request *)rq->buffer;
+ struct cdrom_info *info = drive->driver_data;
+ void *sense = &info->sense_data;
- ide_end_request(drive, uptodate, nsectors);
-}
+ if (failed) {
+ if (failed->sense) {
+ sense = failed->sense;
+ failed->sense_len = rq->sense_len;
+ }
+ cdrom_analyze_sense_data(drive, failed, sense);
-static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 st)
-{
- if (st & 0x80)
- return;
- ide_dump_status(drive, msg, st);
+ if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed)))
+ BUG();
+ } else
+ cdrom_analyze_sense_data(drive, NULL, sense);
}
/*
* Returns:
* 0: if the request should be continued.
- * 1: if the request was ended.
+ * 1: if the request will be going through error recovery.
+ * 2: if the request should be ended.
*/
static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
{
err = ide_read_error(drive);
sense_key = err >> 4;
- if (rq == NULL) {
- printk(KERN_ERR PFX "%s: missing rq in %s\n",
- drive->name, __func__);
- return 1;
- }
-
- ide_debug_log(IDE_DBG_RQ, "%s: stat: 0x%x, good_stat: 0x%x, "
- "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x, err: 0x%x\n",
- __func__, stat, good_stat, rq->cmd[0], rq->cmd_type, err);
+ ide_debug_log(IDE_DBG_RQ, "stat: 0x%x, good_stat: 0x%x, cmd[0]: 0x%x, "
+ "rq->cmd_type: 0x%x, err: 0x%x",
+ stat, good_stat, rq->cmd[0], rq->cmd_type,
+ err);
if (blk_sense_request(rq)) {
/*
* Just give up.
*/
rq->cmd_flags |= REQ_FAILED;
- cdrom_end_request(drive, 0);
- ide_error(drive, "request sense failure", stat);
- return 1;
-
+ return 2;
} else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) {
/* All other functions, except for READ. */
* No point in retrying after an illegal request or data
* protect error.
*/
- ide_dump_status_no_sense(drive, "command error", stat);
+ ide_dump_status(drive, "command error", stat);
do_end_request = 1;
} else if (sense_key == MEDIUM_ERROR) {
/*
* No point in re-trying a zillion times on a bad
* sector. If we got here the error is not correctable.
*/
- ide_dump_status_no_sense(drive,
- "media error (bad sector)",
- stat);
+ ide_dump_status(drive, "media error (bad sector)",
+ stat);
do_end_request = 1;
} else if (sense_key == BLANK_CHECK) {
/* disk appears blank ?? */
- ide_dump_status_no_sense(drive, "media error (blank)",
- stat);
+ ide_dump_status(drive, "media error (blank)", stat);
do_end_request = 1;
} else if ((err & ~ATA_ABORTED) != 0) {
/* go to the default handler for other errors */
*/
if (stat & ATA_ERR)
cdrom_queue_request_sense(drive, NULL, NULL);
+ return 1;
} else {
blk_dump_rq_flags(rq, PFX "bad rq");
- cdrom_end_request(drive, 0);
+ return 2;
}
- /* retry, or handle the next request */
- return 1;
-
end_request:
if (stat & ATA_ERR) {
struct request_queue *q = drive->queue;
hwif->rq = NULL;
cdrom_queue_request_sense(drive, rq->sense, rq);
+ return 1;
} else
- cdrom_end_request(drive, 0);
-
- return 1;
+ return 2;
}
/*
{
ide_hwif_t *hwif = drive->hwif;
- ide_debug_log(IDE_DBG_FUNC, "Call %s, ireason: 0x%x, rw: 0x%x\n",
- __func__, ireason, rw);
+ ide_debug_log(IDE_DBG_FUNC, "ireason: 0x%x, rw: 0x%x", ireason, rw);
/*
* ireason == 0: the drive wants to receive data from us
if (rq->cmd_type == REQ_TYPE_ATA_PC)
rq->cmd_flags |= REQ_FAILED;
- cdrom_end_request(drive, 0);
return -1;
}
-/*
- * Assume that the drive will always provide data in multiples of at least
- * SECTOR_SIZE, as it gets hairy to keep track of the transfers otherwise.
- */
-static int ide_cd_check_transfer_size(ide_drive_t *drive, int len)
-{
- ide_debug_log(IDE_DBG_FUNC, "Call %s, len: %d\n", __func__, len);
-
- if ((len % SECTOR_SIZE) == 0)
- return 0;
-
- printk(KERN_ERR PFX "%s: %s: Bad transfer size %d\n", drive->name,
- __func__, len);
-
- if (drive->atapi_flags & IDE_AFLAG_LIMIT_NFRAMES)
- printk(KERN_ERR PFX "This drive is not supported by this "
- "version of the driver\n");
- else {
- printk(KERN_ERR PFX "Trying to limit transfer sizes\n");
- drive->atapi_flags |= IDE_AFLAG_LIMIT_NFRAMES;
- }
-
- return 1;
-}
-
-static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive,
- struct request *rq)
+static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd)
{
- ide_debug_log(IDE_DBG_RQ, "Call %s: rq->cmd_flags: 0x%x\n", __func__,
- rq->cmd_flags);
-
- if (rq_data_dir(rq) == READ) {
- unsigned short sectors_per_frame =
- queue_hardsect_size(drive->queue) >> SECTOR_BITS;
- int nskip = rq->sector & (sectors_per_frame - 1);
+ struct request *rq = cmd->rq;
- /*
- * If the requested sector doesn't start on a frame boundary,
- * we must adjust the start of the transfer so that it does,
- * and remember to skip the first few sectors.
- *
- * If the rq->current_nr_sectors field is larger than the size
- * of the buffer, it will mean that we're to skip a number of
- * sectors equal to the amount by which rq->current_nr_sectors
- * is larger than the buffer size.
- */
- if (nskip > 0) {
- /* sanity check... */
- if (rq->current_nr_sectors !=
- bio_cur_sectors(rq->bio)) {
- printk(KERN_ERR PFX "%s: %s: buffer botch (%u)\n",
- drive->name, __func__,
- rq->current_nr_sectors);
- cdrom_end_request(drive, 0);
- return ide_stopped;
- }
- rq->current_nr_sectors += nskip;
- }
- }
-
- /* set up the command */
- rq->timeout = ATAPI_WAIT_PC;
-
- return ide_started;
-}
-
-/*
- * Fix up a possibly partially-processed request so that we can start it over
- * entirely, or even put it back on the request queue.
- */
-static void ide_cd_restore_request(ide_drive_t *drive, struct request *rq)
-{
-
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
-
- if (rq->buffer != bio_data(rq->bio)) {
- sector_t n =
- (rq->buffer - (char *)bio_data(rq->bio)) / SECTOR_SIZE;
-
- rq->buffer = bio_data(rq->bio);
- rq->nr_sectors += n;
- rq->sector -= n;
- }
- rq->current_nr_sectors = bio_cur_sectors(rq->bio);
- rq->hard_cur_sectors = rq->current_nr_sectors;
- rq->hard_nr_sectors = rq->nr_sectors;
- rq->hard_sector = rq->sector;
- rq->q->prep_rq_fn(rq->q, rq);
-}
-
-static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct request *rq)
-{
- ide_debug_log(IDE_DBG_FUNC, "Call %s, rq->cmd[0]: 0x%x\n",
- __func__, rq->cmd[0]);
+ ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]);
/*
* Some of the trailing request sense fields are optional,
* and some drives don't send them. Sigh.
*/
if (rq->cmd[0] == GPCMD_REQUEST_SENSE &&
- rq->data_len > 0 && rq->data_len <= 5)
- while (rq->data_len > 0) {
- *(u8 *)rq->data++ = 0;
- --rq->data_len;
+ cmd->nleft > 0 && cmd->nleft <= 5) {
+ unsigned int ofs = cmd->nbytes - cmd->nleft;
+
+ while (cmd->nleft > 0) {
+ *((u8 *)rq->data + ofs++) = 0;
+ cmd->nleft--;
}
+ }
}
int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd,
if (!sense)
sense = &local_sense;
- ide_debug_log(IDE_DBG_PC, "Call %s, cmd[0]: 0x%x, write: 0x%x, "
- "timeout: %d, cmd_flags: 0x%x\n", __func__, cmd[0], write,
- timeout, cmd_flags);
+ ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, "
+ "cmd_flags: 0x%x",
+ cmd[0], write, timeout, cmd_flags);
/* start of retry loop */
do {
return (flags & REQ_FAILED) ? -EIO : 0;
}
-/*
- * Called from blk_end_request_callback() after the data of the request is
- * completed and before the request itself is completed. By returning value '1',
- * blk_end_request_callback() returns immediately without completing it.
- */
-static int cdrom_newpc_intr_dummy_cb(struct request *rq)
+static void ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
{
- return 1;
+ unsigned int nr_bytes = cmd->nbytes - cmd->nleft;
+
+ if (cmd->tf_flags & IDE_TFLAG_WRITE)
+ nr_bytes -= cmd->last_xfer_len;
+
+ if (nr_bytes > 0)
+ ide_complete_rq(drive, 0, nr_bytes);
}
static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
+ struct ide_cmd *cmd = &hwif->cmd;
struct request *rq = hwif->rq;
- xfer_func_t *xferfunc;
ide_expiry_t *expiry = NULL;
int dma_error = 0, dma, stat, thislen, uptodate = 0;
- int write = (rq_data_dir(rq) == WRITE) ? 1 : 0;
+ int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc, nsectors;
+ int sense = blk_sense_request(rq);
unsigned int timeout;
u16 len;
u8 ireason;
- ide_debug_log(IDE_DBG_PC, "Call %s, rq->cmd[0]: 0x%x, write: 0x%x\n",
- __func__, rq->cmd[0], write);
+ ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x",
+ rq->cmd[0], write);
/* check for errors */
dma = drive->dma;
if (dma) {
drive->dma = 0;
+ drive->waiting_for_dma = 0;
dma_error = hwif->dma_ops->dma_end(drive);
+ ide_dma_unmap_sg(drive, cmd);
if (dma_error) {
printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name,
write ? "write" : "read");
}
}
- if (cdrom_decode_status(drive, 0, &stat))
+ rc = cdrom_decode_status(drive, 0, &stat);
+ if (rc) {
+ if (rc == 2)
+ goto out_end;
return ide_stopped;
+ }
/* using dma, transfer is complete now */
if (dma) {
if (dma_error)
return ide_error(drive, "dma error", stat);
- if (blk_fs_request(rq)) {
- ide_end_request(drive, 1, rq->nr_sectors);
- return ide_stopped;
- } else if (rq->cmd_type == REQ_TYPE_ATA_PC && !rq->bio) {
- ide_end_request(drive, 1, 1);
- return ide_stopped;
- }
- goto end_request;
+ uptodate = 1;
+ goto out_end;
}
ide_read_bcount_and_ireason(drive, &len, &ireason);
- thislen = blk_fs_request(rq) ? len : rq->data_len;
+ thislen = blk_fs_request(rq) ? len : cmd->nleft;
if (thislen > len)
thislen = len;
- ide_debug_log(IDE_DBG_PC, "%s: DRQ: stat: 0x%x, thislen: %d\n",
- __func__, stat, thislen);
+ ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d",
+ stat, thislen);
/* If DRQ is clear, the command has completed. */
if ((stat & ATA_DRQ) == 0) {
* Otherwise, complete the command normally.
*/
uptodate = 1;
- if (rq->current_nr_sectors > 0) {
+ if (cmd->nleft > 0) {
printk(KERN_ERR PFX "%s: %s: data underrun "
- "(%d blocks)\n",
- drive->name, __func__,
- rq->current_nr_sectors);
+ "(%u bytes)\n", drive->name, __func__,
+ cmd->nleft);
if (!write)
rq->cmd_flags |= REQ_FAILED;
uptodate = 0;
}
- cdrom_end_request(drive, uptodate);
- return ide_stopped;
} else if (!blk_pc_request(rq)) {
- ide_cd_request_sense_fixup(drive, rq);
+ ide_cd_request_sense_fixup(drive, cmd);
/* complain if we still have data left to transfer */
- uptodate = rq->data_len ? 0 : 1;
+ uptodate = cmd->nleft ? 0 : 1;
+ if (uptodate == 0)
+ rq->cmd_flags |= REQ_FAILED;
}
- goto end_request;
+ goto out_end;
}
/* check which way to transfer data */
- if (ide_cd_check_ireason(drive, rq, len, ireason, write))
- return ide_stopped;
+ rc = ide_cd_check_ireason(drive, rq, len, ireason, write);
+ if (rc)
+ goto out_end;
- if (blk_fs_request(rq)) {
- if (write == 0) {
- int nskip;
-
- if (ide_cd_check_transfer_size(drive, len)) {
- cdrom_end_request(drive, 0);
- return ide_stopped;
- }
+ cmd->last_xfer_len = 0;
- /*
- * First, figure out if we need to bit-bucket
- * any of the leading sectors.
- */
- nskip = min_t(int, rq->current_nr_sectors
- - bio_cur_sectors(rq->bio),
- thislen >> 9);
- if (nskip > 0) {
- ide_pad_transfer(drive, write, nskip << 9);
- rq->current_nr_sectors -= nskip;
- thislen -= (nskip << 9);
- }
- }
- }
-
- if (ireason == 0) {
- write = 1;
- xferfunc = hwif->tp_ops->output_data;
- } else {
- write = 0;
- xferfunc = hwif->tp_ops->input_data;
- }
-
- ide_debug_log(IDE_DBG_PC, "%s: data transfer, rq->cmd_type: 0x%x, "
- "ireason: 0x%x\n", __func__, rq->cmd_type, ireason);
+ ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, "
+ "ireason: 0x%x",
+ rq->cmd_type, ireason);
/* transfer data */
while (thislen > 0) {
- u8 *ptr = blk_fs_request(rq) ? NULL : rq->data;
- int blen = rq->data_len;
-
- /* bio backed? */
- if (rq->bio) {
- if (blk_fs_request(rq)) {
- ptr = rq->buffer;
- blen = rq->current_nr_sectors << 9;
- } else {
- ptr = bio_data(rq->bio);
- blen = bio_iovec(rq->bio)->bv_len;
- }
- }
+ int blen = min_t(int, thislen, cmd->nleft);
- if (!ptr) {
- if (blk_fs_request(rq) && !write)
- /*
- * If the buffers are full, pipe the rest into
- * oblivion.
- */
- ide_pad_transfer(drive, 0, thislen);
- else {
- printk(KERN_ERR PFX "%s: confused, missing data\n",
- drive->name);
- blk_dump_rq_flags(rq, rq_data_dir(rq)
- ? "cdrom_newpc_intr, write"
- : "cdrom_newpc_intr, read");
- }
+ if (cmd->nleft == 0)
break;
- }
-
- if (blen > thislen)
- blen = thislen;
- xferfunc(drive, NULL, ptr, blen);
+ ide_pio_bytes(drive, cmd, write, blen);
+ cmd->last_xfer_len += blen;
thislen -= blen;
len -= blen;
- if (blk_fs_request(rq)) {
- rq->buffer += blen;
- rq->nr_sectors -= (blen >> 9);
- rq->current_nr_sectors -= (blen >> 9);
- rq->sector += (blen >> 9);
-
- if (rq->current_nr_sectors == 0 && rq->nr_sectors)
- cdrom_end_request(drive, 1);
- } else {
- rq->data_len -= blen;
-
- /*
- * The request can't be completed until DRQ is cleared.
- * So complete the data, but don't complete the request
- * using the dummy function for the callback feature
- * of blk_end_request_callback().
- */
- if (rq->bio)
- blk_end_request_callback(rq, 0, blen,
- cdrom_newpc_intr_dummy_cb);
- else
- rq->data += blen;
- }
- if (!write && blk_sense_request(rq))
+ if (sense && write == 0)
rq->sense_len += blen;
}
/* pad, if necessary */
- if (!blk_fs_request(rq) && len > 0)
- ide_pad_transfer(drive, write, len);
+ if (len > 0) {
+ if (blk_fs_request(rq) == 0 || write == 0)
+ ide_pad_transfer(drive, write, len);
+ else {
+ printk(KERN_ERR PFX "%s: confused, missing data\n",
+ drive->name);
+ blk_dump_rq_flags(rq, "cdrom_newpc_intr");
+ }
+ }
if (blk_pc_request(rq)) {
timeout = rq->timeout;
expiry = ide_cd_expiry;
}
- ide_set_handler(drive, cdrom_newpc_intr, timeout, expiry);
+ hwif->expiry = expiry;
+ ide_set_handler(drive, cdrom_newpc_intr, timeout);
return ide_started;
-end_request:
- if (blk_pc_request(rq)) {
+out_end:
+ if (blk_pc_request(rq) && rc == 0) {
unsigned int dlen = rq->data_len;
- if (dma)
- rq->data_len = 0;
+ rq->data_len = 0;
if (blk_end_request(rq, 0, dlen))
BUG();
hwif->rq = NULL;
} else {
- if (!uptodate)
- rq->cmd_flags |= REQ_FAILED;
- cdrom_end_request(drive, uptodate);
+ if (sense && uptodate)
+ ide_cd_complete_failed_rq(drive, rq);
+
+ if (blk_fs_request(rq)) {
+ if (cmd->nleft == 0)
+ uptodate = 1;
+ } else {
+ if (uptodate <= 0 && rq->errors == 0)
+ rq->errors = -EIO;
+ }
+
+ if (uptodate == 0)
+ ide_cd_error_cmd(drive, cmd);
+
+ /* make sure it's fully ended */
+ if (blk_pc_request(rq))
+ nsectors = (rq->data_len + 511) >> 9;
+ else
+ nsectors = rq->hard_nr_sectors;
+
+ if (nsectors == 0)
+ nsectors = 1;
+
+ if (blk_fs_request(rq) == 0) {
+ rq->data_len -= (cmd->nbytes - cmd->nleft);
+ if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE))
+ rq->data_len += cmd->last_xfer_len;
+ }
+
+ ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9);
+
+ if (sense && rc == 2)
+ ide_error(drive, "request sense failure", stat);
}
return ide_stopped;
}
static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
{
struct cdrom_info *cd = drive->driver_data;
+ struct request_queue *q = drive->queue;
int write = rq_data_dir(rq) == WRITE;
unsigned short sectors_per_frame =
- queue_hardsect_size(drive->queue) >> SECTOR_BITS;
+ queue_hardsect_size(q) >> SECTOR_BITS;
- ide_debug_log(IDE_DBG_RQ, "Call %s, rq->cmd[0]: 0x%x, write: 0x%x, "
- "secs_per_frame: %u\n",
- __func__, rq->cmd[0], write, sectors_per_frame);
+ ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, "
+ "secs_per_frame: %u",
+ rq->cmd[0], rq->cmd_flags, sectors_per_frame);
if (write) {
/* disk has become write protected */
- if (get_disk_ro(cd->disk)) {
- cdrom_end_request(drive, 0);
+ if (get_disk_ro(cd->disk))
return ide_stopped;
- }
} else {
/*
* We may be retrying this request after an error. Fix up any
* weirdness which might be present in the request packet.
*/
- ide_cd_restore_request(drive, rq);
+ q->prep_rq_fn(q, rq);
}
- /* use DMA, if possible / writes *must* be hardware frame aligned */
+ /* fs requests *must* be hardware frame aligned */
if ((rq->nr_sectors & (sectors_per_frame - 1)) ||
- (rq->sector & (sectors_per_frame - 1))) {
- if (write) {
- cdrom_end_request(drive, 0);
- return ide_stopped;
- }
- drive->dma = 0;
- } else
- drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
+ (rq->sector & (sectors_per_frame - 1)))
+ return ide_stopped;
+
+ /* use DMA, if possible */
+ drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
if (write)
cd->devinfo.media_written = 1;
+ rq->timeout = ATAPI_WAIT_PC;
+
return ide_started;
}
static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
{
- ide_debug_log(IDE_DBG_PC, "Call %s, rq->cmd[0]: 0x%x, "
- "rq->cmd_type: 0x%x\n", __func__, rq->cmd[0],
- rq->cmd_type);
+ ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x",
+ rq->cmd[0], rq->cmd_type);
if (blk_pc_request(rq))
rq->cmd_flags |= REQ_QUIET;
static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
sector_t block)
{
- ide_debug_log(IDE_DBG_RQ, "Call %s, rq->cmd[0]: 0x%x, "
- "rq->cmd_type: 0x%x, block: %llu\n",
- __func__, rq->cmd[0], rq->cmd_type,
- (unsigned long long)block);
+ struct ide_cmd cmd;
+ int uptodate = 0, nsectors;
+
+ ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu",
+ rq->cmd[0], (unsigned long long)block);
+
+ if (drive->debug_mask & IDE_DBG_RQ)
+ blk_dump_rq_flags(rq, "ide_cd_do_request");
if (blk_fs_request(rq)) {
if (cdrom_start_rw(drive, rq) == ide_stopped)
- return ide_stopped;
-
- if (ide_cd_prepare_rw_request(drive, rq) == ide_stopped)
- return ide_stopped;
+ goto out_end;
} else if (blk_sense_request(rq) || blk_pc_request(rq) ||
rq->cmd_type == REQ_TYPE_ATA_PC) {
if (!rq->timeout)
cdrom_do_block_pc(drive, rq);
} else if (blk_special_request(rq)) {
/* right now this can only be a reset... */
- cdrom_end_request(drive, 1);
- return ide_stopped;
+ uptodate = 1;
+ goto out_end;
} else {
blk_dump_rq_flags(rq, DRV_NAME " bad flags");
- cdrom_end_request(drive, 0);
- return ide_stopped;
+ if (rq->errors == 0)
+ rq->errors = -EIO;
+ goto out_end;
+ }
+
+ memset(&cmd, 0, sizeof(cmd));
+
+ if (rq_data_dir(rq))
+ cmd.tf_flags |= IDE_TFLAG_WRITE;
+
+ cmd.rq = rq;
+
+ if (blk_fs_request(rq) || rq->data_len) {
+ ide_init_sg_cmd(&cmd, blk_fs_request(rq) ? (rq->nr_sectors << 9)
+ : rq->data_len);
+ ide_map_sg(drive, &cmd);
}
- return ide_issue_pc(drive);
+ return ide_issue_pc(drive, &cmd);
+out_end:
+ nsectors = rq->hard_nr_sectors;
+
+ if (nsectors == 0)
+ nsectors = 1;
+
+ ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9);
+
+ return ide_stopped;
}
/*
struct cdrom_device_info *cdi = &info->devinfo;
unsigned char cmd[BLK_MAX_CDB];
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+ ide_debug_log(IDE_DBG_FUNC, "enter");
memset(cmd, 0, BLK_MAX_CDB);
cmd[0] = GPCMD_TEST_UNIT_READY;
unsigned len = sizeof(capbuf);
u32 blocklen;
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+ ide_debug_log(IDE_DBG_FUNC, "enter");
memset(cmd, 0, BLK_MAX_CDB);
cmd[0] = GPCMD_READ_CDVD_CAPACITY;
*capacity = 1 + be32_to_cpu(capbuf.lba);
*sectors_per_frame = blocklen >> SECTOR_BITS;
- ide_debug_log(IDE_DBG_PROBE, "%s: cap: %lu, sectors_per_frame: %lu\n",
- __func__, *capacity, *sectors_per_frame);
+ ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu",
+ *capacity, *sectors_per_frame);
return 0;
}
{
unsigned char cmd[BLK_MAX_CDB];
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+ ide_debug_log(IDE_DBG_FUNC, "enter");
memset(cmd, 0, BLK_MAX_CDB);
long last_written;
unsigned long sectors_per_frame = SECTORS_PER_FRAME;
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+ ide_debug_log(IDE_DBG_FUNC, "enter");
if (toc == NULL) {
/* try to allocate space */
struct packet_command cgc;
int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE;
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+ ide_debug_log(IDE_DBG_FUNC, "enter");
if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0)
size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE;
struct cdrom_info *cd = drive->driver_data;
u16 curspeed, maxspeed;
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+ ide_debug_log(IDE_DBG_FUNC, "enter");
if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) {
curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]);
maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]);
}
- ide_debug_log(IDE_DBG_PROBE, "%s: curspeed: %u, maxspeed: %u\n",
- __func__, curspeed, maxspeed);
+ ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u",
+ curspeed, maxspeed);
cd->current_speed = (curspeed + (176/2)) / 176;
cd->max_speed = (maxspeed + (176/2)) / 176;
struct cdrom_info *info = drive->driver_data;
struct cdrom_device_info *devinfo = &info->devinfo;
- ide_debug_log(IDE_DBG_PROBE, "Call %s, nslots: %d\n", __func__, nslots);
+ ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots);
devinfo->ops = &ide_cdrom_dops;
devinfo->speed = info->current_speed;
mechtype_t mechtype;
int nslots = 1;
- ide_debug_log(IDE_DBG_PROBE, "Call %s, drive->media: 0x%x, "
- "drive->atapi_flags: 0x%lx\n", __func__, drive->media,
- drive->atapi_flags);
+ ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx",
+ drive->media, drive->atapi_flags);
cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R |
CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO |
#endif
static const struct cd_list_entry ide_cd_quirks_list[] = {
- /* Limit transfer size per interrupt. */
- { "SAMSUNG CD-ROM SCR-2430", NULL, IDE_AFLAG_LIMIT_NFRAMES },
- { "SAMSUNG CD-ROM SCR-2432", NULL, IDE_AFLAG_LIMIT_NFRAMES },
/* SCR-3231 doesn't support the SET_CD_SPEED command. */
{ "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT },
/* Old NEC260 (not R) was released before ATAPI 1.2 spec. */
{
struct cdrom_info *cd = drive->driver_data;
struct cdrom_device_info *cdi = &cd->devinfo;
+ struct request_queue *q = drive->queue;
u16 *id = drive->id;
char *fw_rev = (char *)&id[ATA_ID_FW_REV];
int nslots;
- ide_debug_log(IDE_DBG_PROBE, "Call %s\n", __func__);
+ ide_debug_log(IDE_DBG_PROBE, "enter");
- blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn);
- blk_queue_dma_alignment(drive->queue, 31);
- blk_queue_update_dma_pad(drive->queue, 15);
- drive->queue->unplug_delay = (1 * HZ) / 1000;
- if (!drive->queue->unplug_delay)
- drive->queue->unplug_delay = 1;
+ blk_queue_prep_rq(q, ide_cdrom_prep_fn);
+ blk_queue_dma_alignment(q, 31);
+ blk_queue_update_dma_pad(q, 15);
+
+ q->unplug_delay = max((1 * HZ) / 1000, 1);
drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id);
nslots = ide_cdrom_probe_capabilities(drive);
- /* set correct block size */
- blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE);
+ blk_queue_hardsect_size(q, CD_FRAMESIZE);
if (ide_cdrom_register(drive, nslots)) {
printk(KERN_ERR PFX "%s: %s failed to register device with the"
{
struct cdrom_info *info = drive->driver_data;
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+ ide_debug_log(IDE_DBG_FUNC, "enter");
ide_proc_unregister_driver(drive, info->driver);
device_del(&info->dev);
ide_drive_t *drive = info->drive;
struct gendisk *g = info->disk;
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
+ ide_debug_log(IDE_DBG_FUNC, "enter");
kfree(info->toc);
if (devinfo->handle == drive)
.remove = ide_cd_remove,
.version = IDECD_VERSION,
.do_request = ide_cd_do_request,
- .end_request = ide_end_request,
#ifdef CONFIG_IDE_PROC_FS
.proc_entries = ide_cd_proc_entries,
.proc_devsets = ide_cd_proc_devsets,
};
/* module options */
-static char *ignore;
-module_param(ignore, charp, 0400);
-
static unsigned long debug_mask;
module_param(debug_mask, ulong, 0644);
struct gendisk *g;
struct request_sense sense;
- ide_debug_log(IDE_DBG_PROBE, "Call %s, drive->driver_req: %s, "
- "drive->media: 0x%x\n", __func__, drive->driver_req,
- drive->media);
+ ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x",
+ drive->driver_req, drive->media);
if (!strstr("ide-cdrom", drive->driver_req))
goto failed;
if (drive->media != ide_cdrom && drive->media != ide_optical)
goto failed;
- /* skip drives that we were told to ignore */
- if (ignore != NULL) {
- if (strstr(ignore, drive->name)) {
- printk(KERN_INFO PFX "ignoring drive %s\n",
- drive->name);
- goto failed;
- }
- }
-
drive->debug_mask = debug_mask;
drive->irq_handler = cdrom_newpc_intr;
git.openpandora.org / pandora-kernel.git / blobdiff