From aaaade3f059fa1b57283d4a7c8351a42ec747bf0 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 10 Oct 2008 22:39:21 +0200 Subject: ide: WIN_* -> ATA_CMD_* * Use ATA_CMD_* defines instead of WIN_* ones. While at it: * EXABYTE_ENABLE_NEXT -> ATA_EXABYTE_ENABLE_NEST * SETFEATURES_{EN,DIS}_WCACHE -> SETFEATURES_WC_{ON,OFF} * SETFEATURES_{EN,DIS}_AAM -> SETFEATURES_AAM_{ON,OFF} * SMART_* -> ATA_SMART_* * Remove stale comment from ide-proc.c. Partially based on earlier work by Chris Wedgwood. Acked-by: Chris Wedgwood Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index adf04f99cdeb..2433fce6c111 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -303,7 +303,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, /* Issue the packet command */ if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { - ide_execute_command(drive, WIN_PACKETCMD, handler, + ide_execute_command(drive, ATA_CMD_PACKET, handler, timeout, NULL); return ide_started; } else { -- cgit v1.2.3 From 3a7d24841ad794ae64c90d7d00d62a83741912aa Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 10 Oct 2008 22:39:21 +0200 Subject: ide: use ATA_* defines instead of *_STAT and *_ERR ones * ERR_STAT -> ATA_ERR * INDEX_STAT -> ATA_IDX * ECC_STAT -> ATA_CORR * DRQ_STAT -> ATA_DRQ * SEEK_STAT -> ATA_DSC * WRERR_STAT -> ATA_DF * READY_STAT -> ATA_DRDY * BUSY_STAT -> ATA_BUSY * MARK_ERR -> ATA_AMNF * TRK0_ERR -> ATA_TRK0NF * ABRT_ERR -> ATA_ABORTED * MCR_ERR -> ATA_MCR * ID_ERR -> ATA_IDNF * MC_ERR -> ATA_MC * ECC_ERR -> ATA_UNC * ICRC_ERR -> ATA_ICRC * BBD_ERR -> ATA_BBK Also: * ILI_ERR -> ATAPI_ILI * EOM_ERR -> ATAPI_EOM * LFS_ERR -> ATAPI_LFS * CD -> ATAPI_COD * IO -> ATAPI_IO Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 32 +++++++++++++++++--------------- 1 file changed, 17 insertions(+), 15 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 2433fce6c111..12674e6519e6 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -41,7 +41,7 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { if (hwif->dma_ops->dma_end(drive) || - (drive->media == ide_tape && !scsi && (stat & ERR_STAT))) { + (drive->media == ide_tape && !scsi && (stat & ATA_ERR))) { if (drive->media == ide_floppy && !scsi) printk(KERN_ERR "%s: DMA %s error\n", drive->name, rq_data_dir(pc->rq) @@ -56,7 +56,7 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, } /* No more interrupts */ - if ((stat & DRQ_STAT) == 0) { + if ((stat & ATA_DRQ) == 0) { debug_log("Packet command completed, %d bytes transferred\n", pc->xferred); @@ -65,10 +65,10 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, local_irq_enable_in_hardirq(); if (drive->media == ide_tape && !scsi && - (stat & ERR_STAT) && rq->cmd[0] == REQUEST_SENSE) - stat &= ~ERR_STAT; + (stat & ATA_ERR) && rq->cmd[0] == REQUEST_SENSE) + stat &= ~ATA_ERR; - if ((stat & ERR_STAT) || (pc->flags & PC_FLAG_DMA_ERROR)) { + if ((stat & ATA_ERR) || (pc->flags & PC_FLAG_DMA_ERROR)) { /* Error detected */ debug_log("%s: I/O error\n", drive->name); @@ -95,7 +95,7 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, cmd_finished: pc->error = 0; if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) && - (stat & SEEK_STAT) == 0) { + (stat & ATA_DSC) == 0) { dsc_handle(drive); return ide_stopped; } @@ -117,17 +117,18 @@ cmd_finished: /* Get the number of bytes to transfer on this interrupt. */ ide_read_bcount_and_ireason(drive, &bcount, &ireason); - if (ireason & CD) { + if (ireason & ATAPI_COD) { printk(KERN_ERR "%s: CoD != 0 in %s\n", drive->name, __func__); return ide_do_reset(drive); } - if (((ireason & IO) == IO) == !!(pc->flags & PC_FLAG_WRITING)) { + if (((ireason & ATAPI_IO) == ATAPI_IO) == + !!(pc->flags & PC_FLAG_WRITING)) { /* Hopefully, we will never get here */ printk(KERN_ERR "%s: We wanted to %s, but the device wants us " "to %s!\n", drive->name, - (ireason & IO) ? "Write" : "Read", - (ireason & IO) ? "Read" : "Write"); + (ireason & ATAPI_IO) ? "Write" : "Read", + (ireason & ATAPI_IO) ? "Read" : "Write"); return ide_do_reset(drive); } @@ -205,7 +206,8 @@ static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason) { int retries = 100; - while (retries-- && ((ireason & CD) == 0 || (ireason & IO))) { + while (retries-- && ((ireason & ATAPI_COD) == 0 || + (ireason & ATAPI_IO))) { printk(KERN_ERR "%s: (IO,CoD != (0,1) while issuing " "a packet command, retrying\n", drive->name); udelay(100); @@ -214,8 +216,8 @@ static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason) printk(KERN_ERR "%s: (IO,CoD != (0,1) while issuing " "a packet command, ignoring\n", drive->name); - ireason |= CD; - ireason &= ~IO; + ireason |= ATAPI_COD; + ireason &= ~ATAPI_IO; } } @@ -231,7 +233,7 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, ide_startstop_t startstop; u8 ireason; - if (ide_wait_stat(&startstop, drive, DRQ_STAT, BUSY_STAT, WAIT_READY)) { + if (ide_wait_stat(&startstop, drive, ATA_DRQ, ATA_BUSY, WAIT_READY)) { printk(KERN_ERR "%s: Strange, packet command initiated yet " "DRQ isn't asserted\n", drive->name); return startstop; @@ -241,7 +243,7 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, if (drive->media == ide_tape && !drive->scsi) ireason = ide_wait_ireason(drive, ireason); - if ((ireason & CD) == 0 || (ireason & IO)) { + if ((ireason & ATAPI_COD) == 0 || (ireason & ATAPI_IO)) { printk(KERN_ERR "%s: (IO,CoD) != (0,1) while issuing " "a packet command\n", drive->name); return ide_do_reset(drive); -- cgit v1.2.3 From 51509eec34debffec3c6f481f7371c9aeb6c63c1 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 10 Oct 2008 22:39:34 +0200 Subject: ide: add ide_check_atapi_device() helper * Add ide_check_atapi_device() to ide-atapi.c and convert ide-{floppy,tape}.c to use it instead of ide*_identify_device(). While at it: * Add DRV_NAME defines to ide-{floppy,tape}.c. Cc: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 12674e6519e6..61c52fb665ca 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -14,6 +14,53 @@ #define debug_log(fmt, args...) do {} while (0) #endif +/* + * Check whether we can support a device, + * based on the ATAPI IDENTIFY command results. + */ +int ide_check_atapi_device(ide_drive_t *drive, const char *s) +{ + u16 *id = drive->id; + u8 gcw[2], protocol, device_type, removable, drq_type, packet_size; + + *((u16 *)&gcw) = id[ATA_ID_CONFIG]; + + protocol = (gcw[1] & 0xC0) >> 6; + device_type = gcw[1] & 0x1F; + removable = (gcw[0] & 0x80) >> 7; + drq_type = (gcw[0] & 0x60) >> 5; + packet_size = gcw[0] & 0x03; + +#ifdef CONFIG_PPC + /* kludge for Apple PowerBook internal zip */ + if (drive->media == ide_floppy && device_type == 5 && + !strstr((char *)&id[ATA_ID_PROD], "CD-ROM") && + strstr((char *)&id[ATA_ID_PROD], "ZIP")) + device_type = 0; +#endif + + if (protocol != 2) + printk(KERN_ERR "%s: %s: protocol (0x%02x) is not ATAPI\n", + s, drive->name, protocol); + else if ((drive->media == ide_floppy && device_type != 0) || + (drive->media == ide_tape && device_type != 1)) + printk(KERN_ERR "%s: %s: invalid device type (0x%02x)\n", + s, drive->name, device_type); + else if (removable == 0) + printk(KERN_ERR "%s: %s: the removable flag is not set\n", + s, drive->name); + else if (drive->media == ide_floppy && drq_type == 3) + printk(KERN_ERR "%s: %s: sorry, DRQ type (0x%02x) not " + "supported\n", s, drive->name, drq_type); + else if (packet_size != 0) + printk(KERN_ERR "%s: %s: packet size (0x%02x) is not 12 " + "bytes\n", s, drive->name, packet_size); + else + return 1; + return 0; +} +EXPORT_SYMBOL_GPL(ide_check_atapi_device); + /* TODO: unify the code thus making some arguments go away */ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, -- cgit v1.2.3 From acaa0f5f675ccf6b8a3a11a933419068b1ea1f46 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 10 Oct 2008 22:39:36 +0200 Subject: ide: add ide_io_buffers() helper * Make ->io_buffers method return number of bytes transferred. * Use ide_end_request() instead of idefloppy_end_request() in ide_floppy_io_buffers() and then move the call out to ide_pc_intr(). * Add ide_io_buffers() helper and convert ide-{floppy,scsi}.c to use it instead of ide*_io_buffers(). There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 63 +++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 59 insertions(+), 4 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 61c52fb665ca..3d44b45650f6 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -61,12 +61,62 @@ int ide_check_atapi_device(ide_drive_t *drive, const char *s) } EXPORT_SYMBOL_GPL(ide_check_atapi_device); +/* PIO data transfer routine using the scatter gather table. */ +int ide_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, + unsigned int bcount, int write) +{ + ide_hwif_t *hwif = drive->hwif; + const struct ide_tp_ops *tp_ops = hwif->tp_ops; + xfer_func_t *xf = write ? tp_ops->output_data : tp_ops->input_data; + struct scatterlist *sg = pc->sg; + char *buf; + int count, done = 0; + + while (bcount) { + count = min(sg->length - pc->b_count, bcount); + + if (PageHighMem(sg_page(sg))) { + unsigned long flags; + + local_irq_save(flags); + buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; + xf(drive, NULL, buf + pc->b_count, count); + kunmap_atomic(buf - sg->offset, KM_IRQ0); + local_irq_restore(flags); + } else { + buf = sg_virt(sg); + xf(drive, NULL, buf + pc->b_count, count); + } + + bcount -= count; + pc->b_count += count; + done += count; + + if (pc->b_count == sg->length) { + if (!--pc->sg_cnt) + break; + pc->sg = sg = sg_next(sg); + pc->b_count = 0; + } + } + + if (bcount) { + printk(KERN_ERR "%s: %d leftover bytes, %s\n", drive->name, + bcount, write ? "padding with zeros" + : "discarding data"); + ide_pad_transfer(drive, write, bcount); + } + + return done; +} +EXPORT_SYMBOL_GPL(ide_io_buffers); + /* TODO: unify the code thus making some arguments go away */ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *), - void (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int)) + int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int)) { ide_hwif_t *hwif = drive->hwif; struct request *rq = hwif->hwgroup->rq; @@ -219,9 +269,14 @@ cmd_finished: if ((drive->media == ide_floppy && !scsi && !pc->buf) || (drive->media == ide_tape && !scsi && pc->bh) || - (scsi && pc->sg)) - io_buffers(drive, pc, bcount, !!(pc->flags & PC_FLAG_WRITING)); - else + (scsi && pc->sg)) { + int done = io_buffers(drive, pc, bcount, + !!(pc->flags & PC_FLAG_WRITING)); + + /* FIXME: don't do partial completions */ + if (drive->media == ide_floppy && !scsi) + ide_end_request(drive, 1, done >> 9); + } else xferfunc(drive, NULL, pc->cur_pos, bcount); /* Update the current position */ -- cgit v1.2.3 From 7bf7420a318978cd6042e5a5da34b7cfa18ae559 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 10 Oct 2008 22:39:37 +0200 Subject: ide: add ide_init_pc() helper * Add IDE_PC_BUFFER_SIZE define. * Add ide_init_pc() and convert ide-{floppy,tape}.c to use it instead of ide*_init_pc(). * Remove no longer used IDE*_PC_BUFFER_SIZE and ide*_init_pc(). There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 3d44b45650f6..8f0842ce77f5 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -111,6 +111,14 @@ int ide_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, } EXPORT_SYMBOL_GPL(ide_io_buffers); +void ide_init_pc(struct ide_atapi_pc *pc) +{ + memset(pc, 0, sizeof(*pc)); + pc->buf = pc->pc_buf; + pc->buf_size = IDE_PC_BUFFER_SIZE; +} +EXPORT_SYMBOL_GPL(ide_init_pc); + /* TODO: unify the code thus making some arguments go away */ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, -- cgit v1.2.3 From 7645c1514c7d34ebdf3ea0e8ee3a935c08abceb2 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 10 Oct 2008 22:39:37 +0200 Subject: ide: add ide_queue_pc_head() helper * Move REQ_IDETAPE_* enums to . * Add ide_queue_pc_head() and convert ide-{floppy,tape}.c to use it instead of ide*_queue_pc_head(). * Remove no longer used ide*_queue_pc_head(). There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 8f0842ce77f5..da71bfce92e8 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -119,6 +119,26 @@ void ide_init_pc(struct ide_atapi_pc *pc) } EXPORT_SYMBOL_GPL(ide_init_pc); +/* + * Generate a new packet command request in front of the request queue, before + * the current request, so that it will be processed immediately, on the next + * pass through the driver. + */ +void ide_queue_pc_head(ide_drive_t *drive, struct gendisk *disk, + struct ide_atapi_pc *pc, struct request *rq) +{ + blk_rq_init(NULL, rq); + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->cmd_flags |= REQ_PREEMPT; + rq->buffer = (char *)pc; + rq->rq_disk = disk; + memcpy(rq->cmd, pc->c, 12); + if (drive->media == ide_tape) + rq->cmd[13] = REQ_IDETAPE_PC1; + ide_do_drive_cmd(drive, rq); +} +EXPORT_SYMBOL_GPL(ide_queue_pc_head); + /* TODO: unify the code thus making some arguments go away */ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, -- cgit v1.2.3 From 2ac07d920604eeee8966d52e70161f9b31fe90a3 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 10 Oct 2008 22:39:38 +0200 Subject: ide: add ide_queue_pc_tail() helper * Add ide_queue_pc_tail() and convert ide-{floppy,tape}.c to use it instead of ide*_queue_pc_tail(). * Remove no longer used ide*_queue_pc_tail(). There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index da71bfce92e8..f82ddfb9a44e 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -139,6 +139,29 @@ void ide_queue_pc_head(ide_drive_t *drive, struct gendisk *disk, } EXPORT_SYMBOL_GPL(ide_queue_pc_head); +/* + * Add a special packet command request to the tail of the request queue, + * and wait for it to be serviced. + */ +int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, + struct ide_atapi_pc *pc) +{ + struct request *rq; + int error; + + rq = blk_get_request(drive->queue, READ, __GFP_WAIT); + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->buffer = (char *)pc; + memcpy(rq->cmd, pc->c, 12); + if (drive->media == ide_tape) + rq->cmd[13] = REQ_IDETAPE_PC1; + error = blk_execute_rq(drive->queue, disk, rq, 0); + blk_put_request(rq); + + return error; +} +EXPORT_SYMBOL_GPL(ide_queue_pc_tail); + /* TODO: unify the code thus making some arguments go away */ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, -- cgit v1.2.3 From 0578042db3191e1ac76b53d213f2a691c3e1eaed Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 10 Oct 2008 22:39:38 +0200 Subject: ide: add ide_set_media_lock() helper * Set IDE_AFLAG_NO_DOORLOCK in idetape_get_mode_sense_result(), check it in ide_tape_set_media_lock() and cleanup idetape_create_prevent_cmd(). * Set IDE_AFLAG_NO_DOORLOCK in ide_floppy_create_read_capacity_cmd() and check it instead of IDE_AFLAG_CLIK_DRIVE in ide_floppy_set_media_lock(). * Add ide_set_media_lock() helper and convert ide-{floppy,tape}.c to use it. * Remove no longer used ide*_create_prevent_cmd()/ide*_set_media_lock(). * Update comment in accordingly. Acked-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index f82ddfb9a44e..c647a40c0d33 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -162,6 +162,21 @@ int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, } EXPORT_SYMBOL_GPL(ide_queue_pc_tail); +int ide_set_media_lock(ide_drive_t *drive, struct gendisk *disk, int on) +{ + struct ide_atapi_pc pc; + + if (drive->atapi_flags & IDE_AFLAG_NO_DOORLOCK) + return 0; + + ide_init_pc(&pc); + pc.c[0] = ALLOW_MEDIUM_REMOVAL; + pc.c[4] = on; + + return ide_queue_pc_tail(drive, disk, &pc); +} +EXPORT_SYMBOL_GPL(ide_set_media_lock); + /* TODO: unify the code thus making some arguments go away */ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, -- cgit v1.2.3 From 0c8a6c7aead1d3be85ce53e3aaacd52e38ede03e Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 10 Oct 2008 22:39:39 +0200 Subject: ide: add ide_do_start_stop() helper * Add ide_do_start_stop() helper and convert ide-{floppy,tape}.c to use it. * Remove no longer used idefloppy_create_start_stop_cmd() and idetape_create_load_unload_cmd(). There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index c647a40c0d33..58411591edf3 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -162,6 +162,21 @@ int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, } EXPORT_SYMBOL_GPL(ide_queue_pc_tail); +int ide_do_start_stop(ide_drive_t *drive, struct gendisk *disk, int start) +{ + struct ide_atapi_pc pc; + + ide_init_pc(&pc); + pc.c[0] = START_STOP; + pc.c[4] = start; + + if (drive->media == ide_tape) + pc.flags |= PC_FLAG_WAIT_FOR_DSC; + + return ide_queue_pc_tail(drive, disk, &pc); +} +EXPORT_SYMBOL_GPL(ide_do_start_stop); + int ide_set_media_lock(ide_drive_t *drive, struct gendisk *disk, int on) { struct ide_atapi_pc pc; -- cgit v1.2.3 From de699ad595fb45022d1b049ed91ffd06fdd16c13 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Fri, 10 Oct 2008 22:39:39 +0200 Subject: ide: add ide_do_test_unit_ready() helper * Add ide_do_test_unit_ready() helper and convert ide-{floppy,tape}.c to use it. * Remove no longer used idetape_create_test_unit_ready_cmd(). There should be no functional changes caused by this patch. Acked-by: Borislav Petkov Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 58411591edf3..608c5bade929 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -162,6 +162,17 @@ int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, } EXPORT_SYMBOL_GPL(ide_queue_pc_tail); +int ide_do_test_unit_ready(ide_drive_t *drive, struct gendisk *disk) +{ + struct ide_atapi_pc pc; + + ide_init_pc(&pc); + pc.c[0] = TEST_UNIT_READY; + + return ide_queue_pc_tail(drive, disk, &pc); +} +EXPORT_SYMBOL_GPL(ide_do_test_unit_ready); + int ide_do_start_stop(ide_drive_t *drive, struct gendisk *disk, int start) { struct ide_atapi_pc pc; -- cgit v1.2.3 From b14c72127fbe8f97e49de7437520175673f7306a Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 13 Oct 2008 21:39:30 +0200 Subject: ide: drop dsc_handle argument from ide_pc_intr() * Add 'int dsc' argument to ->pc_callback method. * Call ide_tape_handle_dsc() internally in ide_tape_callback() if dsc argument is set and update ide_pc_intr() accordingly. There should be no functional changes caused by this patch. Cc: Borislav Petkov Acked-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 608c5bade929..fb27c94aeb0d 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -207,7 +207,7 @@ EXPORT_SYMBOL_GPL(ide_set_media_lock); ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), - void (*retry_pc)(ide_drive_t *), void (*dsc_handle)(ide_drive_t *), + void (*retry_pc)(ide_drive_t *), int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int)) { ide_hwif_t *hwif = drive->hwif; @@ -216,12 +216,12 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, xfer_func_t *xferfunc; unsigned int temp; u16 bcount; - u8 stat, ireason, scsi = drive->scsi; + u8 stat, ireason, scsi = drive->scsi, dsc = 0; debug_log("Enter %s - interrupt handler\n", __func__); if (pc->flags & PC_FLAG_TIMEDOUT) { - drive->pc_callback(drive); + drive->pc_callback(drive, 0); return ide_stopped; } @@ -283,14 +283,12 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, } cmd_finished: pc->error = 0; - if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) && - (stat & ATA_DSC) == 0) { - dsc_handle(drive); - return ide_stopped; - } + + if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) && (stat & ATA_DSC) == 0) + dsc = 1; /* Command finished - Call the callback function */ - drive->pc_callback(drive); + drive->pc_callback(drive, dsc); return ide_stopped; } -- cgit v1.2.3 From 2b9efba48283f34083df6bc53f6752fba4e4d409 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 13 Oct 2008 21:39:31 +0200 Subject: ide: add pointer to the current packet command to ide_drive_t * Add pointer to the current packet command (struct ide_atapi_pc *pc) to ide_drive_t and use it instead of the pointer in struct ide_*_obj. * Use drive->pc in ide_{issue,transfer}_pc() and ide_pc_intr() instead of 'pc' argument. There should be no functional changes caused by this patch. Cc: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index fb27c94aeb0d..0069c4f08244 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -204,12 +204,13 @@ int ide_set_media_lock(ide_drive_t *drive, struct gendisk *disk, int on) EXPORT_SYMBOL_GPL(ide_set_media_lock); /* TODO: unify the code thus making some arguments go away */ -ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, +ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), void (*retry_pc)(ide_drive_t *), int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int)) { + struct ide_atapi_pc *pc = drive->pc; ide_hwif_t *hwif = drive->hwif; struct request *rq = hwif->hwgroup->rq; const struct ide_tp_ops *tp_ops = hwif->tp_ops; @@ -416,10 +417,11 @@ static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason) return ireason; } -ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, +ide_startstop_t ide_transfer_pc(ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry) { + struct ide_atapi_pc *pc = drive->pc; ide_hwif_t *hwif = drive->hwif; struct request *rq = hwif->hwgroup->rq; ide_startstop_t startstop; @@ -458,10 +460,11 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, } EXPORT_SYMBOL_GPL(ide_transfer_pc); -ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_atapi_pc *pc, +ide_startstop_t ide_issue_pc(ide_drive_t *drive, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry) { + struct ide_atapi_pc *pc = drive->pc; ide_hwif_t *hwif = drive->hwif; u16 bcount; u8 dma = 0; -- cgit v1.2.3 From 844b9468523c8c2c45b90df4efcabcbe4926b5ab Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 13 Oct 2008 21:39:31 +0200 Subject: ide: drop 'timeout' and 'expiry' arguments from ide_pc_intr() * Move idescsi_expiry() to ide-atapi.c. * Move get_timeout() to . * Drop 'timeout' and 'expiry' arguments from ide_pc_intr(). While at it: * idescsi_expiry() -> ide_scsi_expiry() * get_timeout() -> ide_scsi_get_timeout() There should be no functional changes caused by this patch. Cc: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 34 +++++++++++++++++++++++++++------- 1 file changed, 27 insertions(+), 7 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 0069c4f08244..184835141412 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -203,9 +203,21 @@ int ide_set_media_lock(ide_drive_t *drive, struct gendisk *disk, int on) } EXPORT_SYMBOL_GPL(ide_set_media_lock); +int ide_scsi_expiry(ide_drive_t *drive) +{ + struct ide_atapi_pc *pc = drive->pc; + + debug_log("%s called for %lu at %lu\n", __func__, + pc->scsi_cmd->serial_number, jiffies); + + pc->flags |= PC_FLAG_TIMEDOUT; + + return 0; /* we do not want the IDE subsystem to retry */ +} +EXPORT_SYMBOL_GPL(ide_scsi_expiry); + /* TODO: unify the code thus making some arguments go away */ -ide_startstop_t ide_pc_intr(ide_drive_t *drive, - ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, +ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler, void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), void (*retry_pc)(ide_drive_t *), int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int)) @@ -215,12 +227,22 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct request *rq = hwif->hwgroup->rq; const struct ide_tp_ops *tp_ops = hwif->tp_ops; xfer_func_t *xferfunc; - unsigned int temp; + ide_expiry_t *expiry; + unsigned int timeout, temp; u16 bcount; u8 stat, ireason, scsi = drive->scsi, dsc = 0; debug_log("Enter %s - interrupt handler\n", __func__); + if (scsi) { + timeout = ide_scsi_get_timeout(pc); + expiry = ide_scsi_expiry; + } else { + timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD + : WAIT_TAPE_CMD; + expiry = NULL; + } + if (pc->flags & PC_FLAG_TIMEDOUT) { drive->pc_callback(drive, 0); return ide_stopped; @@ -347,9 +369,7 @@ cmd_finished: pc->xferred += temp; pc->cur_pos += temp; ide_pad_transfer(drive, 0, bcount - temp); - ide_set_handler(drive, handler, timeout, - expiry); - return ide_started; + goto next_irq; } debug_log("The device wants to send us more data than " "expected - allowing transfer\n"); @@ -376,7 +396,7 @@ cmd_finished: debug_log("[cmd %x] transferred %d bytes on that intr.\n", rq->cmd[0], bcount); - +next_irq: /* And set the interrupt handler again */ ide_set_handler(drive, handler, timeout, expiry); return ide_started; -- cgit v1.2.3 From 6b0da28b2d0f4f4e2c55689fc062db569075ff60 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 13 Oct 2008 21:39:32 +0200 Subject: ide: add ide_retry_pc() helper * Add ide_create_request_sense_cmd() and ide_retry_pc() helpers and convert ide-{atapi,floppy,tape}.c to use them. * Remove no longer used ide*_create_request_sense_cmd(), ide*_retry_pc() and 'retry_pc' argument from ide_pc_intr(). * Make ide_queue_pc_head() static. There should be no functional changes caused by this patch. Cc: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 39 ++++++++++++++++++++++++++++++++++----- 1 file changed, 34 insertions(+), 5 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 184835141412..d758dcd87178 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -124,8 +124,8 @@ EXPORT_SYMBOL_GPL(ide_init_pc); * the current request, so that it will be processed immediately, on the next * pass through the driver. */ -void ide_queue_pc_head(ide_drive_t *drive, struct gendisk *disk, - struct ide_atapi_pc *pc, struct request *rq) +static void ide_queue_pc_head(ide_drive_t *drive, struct gendisk *disk, + struct ide_atapi_pc *pc, struct request *rq) { blk_rq_init(NULL, rq); rq->cmd_type = REQ_TYPE_SPECIAL; @@ -137,7 +137,6 @@ void ide_queue_pc_head(ide_drive_t *drive, struct gendisk *disk, rq->cmd[13] = REQ_IDETAPE_PC1; ide_do_drive_cmd(drive, rq); } -EXPORT_SYMBOL_GPL(ide_queue_pc_head); /* * Add a special packet command request to the tail of the request queue, @@ -203,6 +202,37 @@ int ide_set_media_lock(ide_drive_t *drive, struct gendisk *disk, int on) } EXPORT_SYMBOL_GPL(ide_set_media_lock); +void ide_create_request_sense_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc) +{ + ide_init_pc(pc); + pc->c[0] = REQUEST_SENSE; + if (drive->media == ide_floppy) { + pc->c[4] = 255; + pc->req_xfer = 18; + } else { + pc->c[4] = 20; + pc->req_xfer = 20; + } +} +EXPORT_SYMBOL_GPL(ide_create_request_sense_cmd); + +/* + * Called when an error was detected during the last packet command. + * We queue a request sense packet command in the head of the request list. + */ +void ide_retry_pc(ide_drive_t *drive, struct gendisk *disk) +{ + struct request *rq = &drive->request_sense_rq; + struct ide_atapi_pc *pc = &drive->request_sense_pc; + + (void)ide_read_error(drive); + ide_create_request_sense_cmd(drive, pc); + if (drive->media == ide_tape) + set_bit(IDE_AFLAG_IGNORE_DSC, &drive->atapi_flags); + ide_queue_pc_head(drive, disk, pc, rq); +} +EXPORT_SYMBOL_GPL(ide_retry_pc); + int ide_scsi_expiry(ide_drive_t *drive) { struct ide_atapi_pc *pc = drive->pc; @@ -219,7 +249,6 @@ EXPORT_SYMBOL_GPL(ide_scsi_expiry); /* TODO: unify the code thus making some arguments go away */ ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler, void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), - void (*retry_pc)(ide_drive_t *), int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int)) { struct ide_atapi_pc *pc = drive->pc; @@ -299,7 +328,7 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler, debug_log("[cmd %x]: check condition\n", rq->cmd[0]); /* Retry operation */ - retry_pc(drive); + ide_retry_pc(drive, rq->rq_disk); /* queued, but not started */ return ide_stopped; -- cgit v1.2.3 From 85e39035ca381846b031690f4d1ac1f0660da0a2 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 13 Oct 2008 21:39:32 +0200 Subject: ide: add ->pc_{update,io}_buffers methods Add ->pc_{update,io}_buffers methods to ide_drive_t and use them instead of {update,io}_buffers ide_pc_intr() arguments. There should be no functional changes caused by this patch. Cc: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index d758dcd87178..f46bc5124e00 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -246,10 +246,7 @@ int ide_scsi_expiry(ide_drive_t *drive) } EXPORT_SYMBOL_GPL(ide_scsi_expiry); -/* TODO: unify the code thus making some arguments go away */ -ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler, - void (*update_buffers)(ide_drive_t *, struct ide_atapi_pc *), - int (*io_buffers)(ide_drive_t *, struct ide_atapi_pc *, unsigned, int)) +ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler) { struct ide_atapi_pc *pc = drive->pc; ide_hwif_t *hwif = drive->hwif; @@ -290,8 +287,8 @@ ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler, pc->flags |= PC_FLAG_DMA_ERROR; } else { pc->xferred = pc->req_xfer; - if (update_buffers) - update_buffers(drive, pc); + if (drive->pc_update_buffers) + drive->pc_update_buffers(drive, pc); } debug_log("%s: DMA finished\n", drive->name); } @@ -386,7 +383,8 @@ cmd_finished: temp = 0; if (temp) { if (pc->sg) - io_buffers(drive, pc, temp, 0); + drive->pc_io_buffers(drive, pc, + temp, 0); else tp_ops->input_data(drive, NULL, pc->cur_pos, temp); @@ -410,7 +408,7 @@ cmd_finished: if ((drive->media == ide_floppy && !scsi && !pc->buf) || (drive->media == ide_tape && !scsi && pc->bh) || (scsi && pc->sg)) { - int done = io_buffers(drive, pc, bcount, + int done = drive->pc_io_buffers(drive, pc, bcount, !!(pc->flags & PC_FLAG_WRITING)); /* FIXME: don't do partial completions */ -- cgit v1.2.3 From aa5d2de7b080873f6d9ac3aede423c9713bf0caa Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 13 Oct 2008 21:39:32 +0200 Subject: ide: make ide_pc_intr() static * Always use ide_pc_intr as a handler in ide_pc_intr(). * Remove no longer used ide*_pc_intr() and 'handler' argument from ide_{transfer_pc,pc_intr}(). * Make ide_pc_intr() static. There should be no functional changes caused by this patch. Cc: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index f46bc5124e00..b558663418d8 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -246,7 +246,12 @@ int ide_scsi_expiry(ide_drive_t *drive) } EXPORT_SYMBOL_GPL(ide_scsi_expiry); -ide_startstop_t ide_pc_intr(ide_drive_t *drive, ide_handler_t *handler) +/* + * This is the usual interrupt handler which will be called during a packet + * command. We will transfer some of the data (as requested by the drive) + * and will re-point interrupt handler to us. + */ +static ide_startstop_t ide_pc_intr(ide_drive_t *drive) { struct ide_atapi_pc *pc = drive->pc; ide_hwif_t *hwif = drive->hwif; @@ -425,10 +430,9 @@ cmd_finished: rq->cmd[0], bcount); next_irq: /* And set the interrupt handler again */ - ide_set_handler(drive, handler, timeout, expiry); + ide_set_handler(drive, ide_pc_intr, timeout, expiry); return ide_started; } -EXPORT_SYMBOL_GPL(ide_pc_intr); static u8 ide_read_ireason(ide_drive_t *drive) { @@ -464,8 +468,7 @@ static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason) return ireason; } -ide_startstop_t ide_transfer_pc(ide_drive_t *drive, - ide_handler_t *handler, unsigned int timeout, +ide_startstop_t ide_transfer_pc(ide_drive_t *drive, unsigned int timeout, ide_expiry_t *expiry) { struct ide_atapi_pc *pc = drive->pc; @@ -491,7 +494,7 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, } /* Set the interrupt routine */ - ide_set_handler(drive, handler, timeout, expiry); + ide_set_handler(drive, ide_pc_intr, timeout, expiry); /* Begin DMA, if necessary */ if (pc->flags & PC_FLAG_DMA_OK) { -- cgit v1.2.3 From baf08f0be6d986521bb2fbdc7af51fc4847da734 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 13 Oct 2008 21:39:32 +0200 Subject: ide: make ide_transfer_pc() static * Move ->ticks field from struct ide_floppy_obj to ide_drive_t. * Move idefloppy_transfer_pc() to ide-atapi.c and make ide_transfer_pc() use it. * Always use ide_transfer_pc as a handler in ide_issue_pc(). * Remove no longer used idefloppy_start_pc_transfer(), ide*_transfer_pc() and 'handler' argument from ide_issue_pc(). * Make ide_transfer_pc() static. While at it: * idefloppy_transfer_pc() -> ide_delayed_transfer_pc() * IDEFLOPPY_TICKS_DELAY -> IDEFLOPPY_PC_DELAY * ->ticks -> ->pc_delay There should be no functional changes caused by this patch. Cc: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 41 ++++++++++++++++++++++++++++++++++------- 1 file changed, 34 insertions(+), 7 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index b558663418d8..2521677e1f48 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -468,12 +468,22 @@ static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason) return ireason; } -ide_startstop_t ide_transfer_pc(ide_drive_t *drive, unsigned int timeout, - ide_expiry_t *expiry) +static int ide_delayed_transfer_pc(ide_drive_t *drive) +{ + /* Send the actual packet */ + drive->hwif->tp_ops->output_data(drive, NULL, drive->pc->c, 12); + + /* Timeout for the packet command */ + return WAIT_FLOPPY_CMD; +} + +static ide_startstop_t ide_transfer_pc(ide_drive_t *drive) { struct ide_atapi_pc *pc = drive->pc; ide_hwif_t *hwif = drive->hwif; struct request *rq = hwif->hwgroup->rq; + ide_expiry_t *expiry; + unsigned int timeout; ide_startstop_t startstop; u8 ireason; @@ -493,6 +503,25 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, unsigned int timeout, return ide_do_reset(drive); } + /* + * If necessary schedule the packet transfer to occur 'timeout' + * miliseconds later in ide_delayed_transfer_pc() after the device + * says it's ready for a packet. + */ + if (drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) { + timeout = drive->pc_delay; + expiry = &ide_delayed_transfer_pc; + } else { + if (drive->scsi) { + timeout = ide_scsi_get_timeout(pc); + expiry = ide_scsi_expiry; + } else { + timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD + : WAIT_TAPE_CMD; + expiry = NULL; + } + } + /* Set the interrupt routine */ ide_set_handler(drive, ide_pc_intr, timeout, expiry); @@ -508,10 +537,8 @@ ide_startstop_t ide_transfer_pc(ide_drive_t *drive, unsigned int timeout, return ide_started; } -EXPORT_SYMBOL_GPL(ide_transfer_pc); -ide_startstop_t ide_issue_pc(ide_drive_t *drive, - ide_handler_t *handler, unsigned int timeout, +ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout, ide_expiry_t *expiry) { struct ide_atapi_pc *pc = drive->pc; @@ -550,12 +577,12 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, /* Issue the packet command */ if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { - ide_execute_command(drive, ATA_CMD_PACKET, handler, + ide_execute_command(drive, ATA_CMD_PACKET, ide_transfer_pc, timeout, NULL); return ide_started; } else { ide_execute_pkt_cmd(drive); - return (*handler)(drive); + return ide_transfer_pc(drive); } } EXPORT_SYMBOL_GPL(ide_issue_pc); -- cgit v1.2.3 From 97100fc816badbbc162644cfde7ad39ae9211fb4 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 13 Oct 2008 21:39:36 +0200 Subject: ide: add device flags Add 'unsigned long dev_flags' to ide_drive_t and convert bitfields to IDE_DFLAG_* flags. While at it: - IDE_DFLAG_ADDRESSING -> IDE_DFLAG_LBA48 - fixup some comments - remove needless g->flags zeroing from ide*_probe() There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 2521677e1f48..a1d8c3557a42 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -261,7 +261,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive) ide_expiry_t *expiry; unsigned int timeout, temp; u16 bcount; - u8 stat, ireason, scsi = drive->scsi, dsc = 0; + u8 stat, ireason, scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI), dsc = 0; debug_log("Enter %s - interrupt handler\n", __func__); @@ -494,7 +494,8 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive) } ireason = ide_read_ireason(drive); - if (drive->media == ide_tape && !drive->scsi) + if (drive->media == ide_tape && + (drive->dev_flags & IDE_DFLAG_SCSI) == 0) ireason = ide_wait_ireason(drive, ireason); if ((ireason & ATAPI_COD) == 0 || (ireason & ATAPI_IO)) { @@ -512,7 +513,7 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive) timeout = drive->pc_delay; expiry = &ide_delayed_transfer_pc; } else { - if (drive->scsi) { + if (drive->dev_flags & IDE_DFLAG_SCSI) { timeout = ide_scsi_get_timeout(pc); expiry = ide_scsi_expiry; } else { @@ -544,14 +545,14 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout, struct ide_atapi_pc *pc = drive->pc; ide_hwif_t *hwif = drive->hwif; u16 bcount; - u8 dma = 0; + u8 dma = 0, scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI); /* We haven't transferred any data yet */ pc->xferred = 0; pc->cur_pos = pc->buf; /* Request to transfer the entire buffer at once */ - if (drive->media == ide_tape && !drive->scsi) + if (drive->media == ide_tape && scsi == 0) bcount = pc->req_xfer; else bcount = min(pc->req_xfer, 63 * 1024); @@ -561,19 +562,19 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout, ide_dma_off(drive); } - if ((pc->flags & PC_FLAG_DMA_OK) && drive->using_dma) { - if (drive->scsi) + if ((pc->flags & PC_FLAG_DMA_OK) && + (drive->dev_flags & IDE_DFLAG_USING_DMA)) { + if (scsi) hwif->sg_mapped = 1; dma = !hwif->dma_ops->dma_setup(drive); - if (drive->scsi) + if (scsi) hwif->sg_mapped = 0; } if (!dma) pc->flags &= ~PC_FLAG_DMA_OK; - ide_pktcmd_tf_load(drive, drive->scsi ? 0 : IDE_TFLAG_OUT_DEVICE, - bcount, dma); + ide_pktcmd_tf_load(drive, scsi ? 0 : IDE_TFLAG_OUT_DEVICE, bcount, dma); /* Issue the packet command */ if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { -- cgit v1.2.3 From 0a9b6f8864362e31e348b12922a92b48b1b8cc94 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 13 Oct 2008 21:39:49 +0200 Subject: ide: add ide_drive_t.dma flag This flag is to accomodate ide-cd functionality into ide atapi. There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index a1d8c3557a42..d55784173a79 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -545,7 +545,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout, struct ide_atapi_pc *pc = drive->pc; ide_hwif_t *hwif = drive->hwif; u16 bcount; - u8 dma = 0, scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI); + u8 scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI); /* We haven't transferred any data yet */ pc->xferred = 0; @@ -566,15 +566,16 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout, (drive->dev_flags & IDE_DFLAG_USING_DMA)) { if (scsi) hwif->sg_mapped = 1; - dma = !hwif->dma_ops->dma_setup(drive); + drive->dma = !hwif->dma_ops->dma_setup(drive); if (scsi) hwif->sg_mapped = 0; } - if (!dma) + if (!drive->dma) pc->flags &= ~PC_FLAG_DMA_OK; - ide_pktcmd_tf_load(drive, scsi ? 0 : IDE_TFLAG_OUT_DEVICE, bcount, dma); + ide_pktcmd_tf_load(drive, scsi ? 0 : IDE_TFLAG_OUT_DEVICE, bcount, + drive->dma); /* Issue the packet command */ if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { -- cgit v1.2.3 From f9476b96b5c19a843d6256b8d228ebf1edabb1b6 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Mon, 13 Oct 2008 21:39:50 +0200 Subject: ide-atapi: assign taskfile flags per device type There should be no functional change resulting from this patch. Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-atapi.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers/ide/ide-atapi.c') diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index d55784173a79..2e305714c209 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -544,6 +544,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout, { struct ide_atapi_pc *pc = drive->pc; ide_hwif_t *hwif = drive->hwif; + u32 tf_flags; u16 bcount; u8 scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI); @@ -574,8 +575,14 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout, if (!drive->dma) pc->flags &= ~PC_FLAG_DMA_OK; - ide_pktcmd_tf_load(drive, scsi ? 0 : IDE_TFLAG_OUT_DEVICE, bcount, - drive->dma); + if (scsi) + tf_flags = 0; + else if (drive->media == ide_cdrom || drive->media == ide_optical) + tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL; + else + tf_flags = IDE_TFLAG_OUT_DEVICE; + + ide_pktcmd_tf_load(drive, tf_flags, bcount, drive->dma); /* Issue the packet command */ if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { -- cgit v1.2.3