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path: root/drivers/ide/ide-iops.c
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2008-07-16IDE: Report errors during drive reset back to user spaceElias Oltmanns
Make sure that each error condition during the execution of an HDIO_DRIVE_RESET ioctl is actually reported to the calling process. Also, unify the exit path of reset_pollfunc() when returning ide_stopped since the need of ->port_ops->reset_poll() to be treated specially has vanished (way back, it seems). Signed-off-by: Elias Oltmanns <eo@nebensachen.de> Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk> Cc: "Randy Dunlap" <randy.dunlap@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-16IDE: Fix HDIO_DRIVE_RESET handlingElias Oltmanns
Currently, the code path executing an HDIO_DRIVE_RESET ioctl is broken in various ways. Most importantly, it is treated as an out of band request in an illegal way which may very likely lead to system lock ups. Use the drive's request queue to avoid this problem (and fix a locking issue for free along the way). Signed-off-by: Elias Oltmanns <eo@nebensachen.de> Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk> Cc: "Randy Dunlap" <randy.dunlap@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: remove drive->ctlBartlomiej Zolnierkiewicz
Remove drive->ctl (it is always equal to 0x08 after init time). While at it: * Use ATA_DEVCTL_OBS define. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: pass 'hwif *' instead of 'drive *' to ->OUTBSYNC methodBartlomiej Zolnierkiewicz
There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: move IRQ unmasking out from ->tf_load methodBartlomiej Zolnierkiewicz
Move IRQ unmasking out from ->tf_load method to its users. There should be no functional changes caused by this patch (SELECT_MASK() is NOP except for hpt366, icside and sgiioc4). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: remove IDE_TFLAG_NO_SELECT_MASK taskfile flagBartlomiej Zolnierkiewicz
Always call SELECT_MASK(..., 0) in ide_tf_load() (needs to be done to match ide_set_irq(..., 1)) and then remove IDE_TFLAG_NO_SELECT_MASK taskfile flag. This change should only affect hpt366 and icside host drivers since ->maskproc(..., 0) for sgiioc4 is equivalent to ide_set_irq(..., 1). Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: remove commented out code from ide_config_drive_speed()Bartlomiej Zolnierkiewicz
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15ide: disable drive interrupts in ide_driveid_update()Mikhail Cherkashin
Since ide_driveid_update() uses polling to execute the IDENTIFY DEVICE command but clears nIEN bit in the control register and doesn't mask the IDE interrupt, the latter does happen and lead to the corresponding message to appear: ide0: unexpected interrupt, status=0x58, count=1 when e.g. running hdparm with option -X with a non-PCI IDE driver... Signed-off-by: Mikhail Cherkashin <mcherkashin@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-05-14make ide-iops.c:SELECT_MASK() staticAdrian Bunk
SELECT_MASK() can now become static. [bart: remove space between function name and open parenthesis] Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: add TSSTcorp CDDVDW SH-S202H to ivb_list[]Alexander Smal
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: skip "VLB sync" if host uses MMIOBartlomiej Zolnierkiewicz
* Skip "VLB sync" in ata_{in,out}put_data() if host uses MMIO. * Use I/O ops directly in ata_vlb_sync() an drop no longer needed 'ide_drive_t *drive' argument. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: remove ->INW and ->OUTW methodsBartlomiej Zolnierkiewicz
* Remove no longer used ->INW and ->OUTW methods. While at it: * scc_pata.c: scc_ide_{out,in}w() is called only in scc_tf_{load,read}() so inline it there. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: use IDE I/O helpers directly in ide_tf_{load,read}()Bartlomiej Zolnierkiewicz
There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: add ->tf_load and ->tf_read methodsBartlomiej Zolnierkiewicz
* Add ->tf_load and ->tf_read methods to ide_hwif_t and set the default methods in default_hwif_transport(). * Use ->tf_{load,read} instead o calling ide_tf_{load,read}() directly. * Make ide_tf_{load,read}() static. There should be no functional changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: move ide_tf_{load,read} to ide-iops.cBartlomiej Zolnierkiewicz
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: add ide_execute_pkt_cmd() helperBartlomiej Zolnierkiewicz
Add ide_execute_pkt_cmd() helper for executing PACKET command, then convert ATAPI device drivers to use it. As a nice side-effect this fixes ide-{floppy,tape,scsi} w.r.t. ide_lock taking (ide-cd was OK). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: always use ->OUTBSYNC method for executing commandsBartlomiej Zolnierkiewicz
Always use ->OUTBSYNC method for executing commands so the posting is done if needed (this affects only pmac and scc_pata host drivers at the moment). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: remove ->INS{W,L} and ->OUTS{W,L} methodsBartlomiej Zolnierkiewicz
* Use ins{w,l}()/outs{w,l}() and __ide_mm_ins{w,l}()/__ide_mm_outs{w,l}() directly in ata_{in,out}put_data() (by using IDE_HFLAG_MMIO host flag to decide which I/O ops are required). * Remove no longer needed ->INS{W,L} and ->OUTS{W,L} methods (ide-h8300, au1xxx-ide and scc_pata implement their own ->{in,out}put_data methods). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: merge ->atapi_*put_bytes and ->ata_*put_data methodsBartlomiej Zolnierkiewicz
* Merge ->atapi_{in,out}put_bytes and ->ata_{in,out}put_data methods into new ->{in,out}put_data methods which take number of bytes to transfer as an argument and always do padding. While at it: * Use 'hwif' or 'drive->hwif' instead of 'HWIF(drive)'. There should be no functional changes caused by this patch (all users of ->ata_{in,out}put_data methods were using multiply-of-4 word counts). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28falconide/q40ide: add ->atapi_*put_bytes and ->ata_*put_data methods (take 2)Bartlomiej Zolnierkiewicz
* Add ->atapi_{in,out}put_bytes and ->ata_{in,out}put_data methods to falconide and q40ide host drivers (->ata_* methods are implemented on top of ->atapi_* methods so they also do byte-swapping now). * Cleanup atapi_{in,out}put_bytes(). v2: * Add 'struct request *rq' argument to ->ata_{in,out}put_data methods and don't byte-swap disk fs requests (we shouldn't un-swap fs requests because fs itself is stored byte-swapped on the disk) - this is how things were done before the patch (ideally device mapper should be used instead but it would break existing setups and would have some performance impact). Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michael Schmitz <schmitz@debian.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Richard Zidlicky <rz@linux-m68k.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-27ide: add struct ide_io_ports (take 3)Bartlomiej Zolnierkiewicz
* Add struct ide_io_ports and use it instead of `unsigned long io_ports[]` in ide_hwif_t. * Rename io_ports[] in hw_regs_t to io_ports_array[]. * Use un-named union for 'unsigned long io_ports_array[]' and 'struct ide_io_ports io_ports' in hw_regs_t. * Remove IDE_*_OFFSET defines. v2: * scc_pata.c build fix from Stephen Rothwell. v3: * Fix ctl_adrr typo in Sparc-specific part of ns87415.c. (Noticed by Andrew Morton) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: add struct ide_dma_ops (take 3)Bartlomiej Zolnierkiewicz
Add struct ide_dma_ops and convert core code + drivers to use it. While at it: * Drop "ide_" prefix from ->ide_dma_end and ->ide_dma_test_irq methods. * Drop "ide_" "infixes" from DMA methods. * au1xxx-ide.c: - use auide_dma_{test_irq,end}() directly in auide_dma_timeout() * pdc202xx_old.c: - drop "old_" "infixes" from DMA methods * siimage.c: - add siimage_dma_test_irq() helper - print SATA warning in siimage_init_one() * Remove no longer needed ->init_hwif implementations. v2: * Changes based on review from Sergei: - s/siimage_ide_dma_test_irq/siimage_dma_test_irq/ - s/drive->hwif/hwif/ in idefloppy_pc_intr(). - fix patch description w.r.t. au1xxx-ide changes - fix au1xxx-ide build - fix naming for cmd64*_dma_ops - drop "ide_" and "old_" infixes - s/hpt3xxx_dma_ops/hpt37x_dma_ops/ - s/hpt370x_dma_ops/hpt370_dma_ops/ - use correct DMA ops for HPT302/N, HPT371/N and HPT374 - s/it821x_smart_dma_ops/it821x_pass_through_dma_ops/ v3: * Two bugs slipped in v2 (noticed by Sergei): - use correct DMA ops for HPT374 (for real this time) - handle HPT370/HPT370A properly Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: add struct ide_port_ops (take 2)Bartlomiej Zolnierkiewicz
* Move hooks for port/host specific methods from ide_hwif_t to 'struct ide_port_ops'. * Add 'const struct ide_port_ops *port_ops' to 'struct ide_port_info' and ide_hwif_t. * Update host drivers and core code accordingly. While at it: * Rename ata66_*() cable detect functions to *_cable_detect() to match the standard naming. (Suggested by Sergei Shtylyov) v2: * Fix build for bast-ide. (Noticed by Andrew Morton) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-18ide: remove IDE_*_REG macrosBartlomiej Zolnierkiewicz
* Add IDE_{ALTSTATUS,IREASON,BCOUNTL,BCOUNTH}_OFFSET defines. * Remove IDE_*_REG macros - this results in more readable and slightly smaller code. There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-02ide: use ->ata_input_data in ide_driveid_update()Bartlomiej Zolnierkiewicz
Use ->ata_input_data method instead of calling ata_input_data() directly. Currently it matters only for (broken) ide-cris host driver but it may change in the future. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-03-29Revert "ide: change master/slave IDENTIFY order"Bartlomiej Zolnierkiewicz
This reverts commit b140b99c413ce410197cfcd4014e757cd745226a. [ conflict in drivers/ide/ide-probe.c fixed manually ] It turned out that probing order change causes problems for some drives: http://bugzilla.kernel.org/show_bug.cgi?id=10239 Since root causes are still being investigated and are unlikely to be fixed before 2.6.25 lets revert this change for now. As a result cable detection becomes less reliable when compared with 2.6.24 but the affected drives are useable again. Reported-by: Richard Genoud <richard.genoud@gmail.com> Bisected-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-11ide: insert BUG_ON() into __ide_set_handler() (take 2)Sergei Shtylyov
Replace the check for hwgroup->handler and printk(KERN_CRIT, ...) at the start of __ide_set_handler() with mere BUG_ON() while removing such from the caller, ide_execute_command(). Fix up the code formatting, while at it... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-06ide: add ide_read_error() inline helperBartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-06ide: add ide_read_[alt]status() inline helpersBartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-06ide: remove redundant BUG_ON() from [atapi_]reset_pollfunc()Bartlomiej Zolnierkiewicz
Same BUG_ON() is present inside ide_set_handler(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-02ide: move check_dma_crc() to ide-dma.cBartlomiej Zolnierkiewicz
* Move check_dma_crc() to ide-dma.c and add inline version for CONFIG_BLK_DEV_IDEDMA=n case. * Rename check_dma_crc() to ide_check_dma_crc(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-02ide: remove ide_auto_reduce_xfer()Bartlomiej Zolnierkiewicz
While at it: * Remove needless '!drive->crc_count' check. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-02ide: move drive->crc_count check out from check_dma_crc()Bartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-02ide: remove ide_ata66_check()Bartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-02ide: remove set_transfer()Bartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-02ide: unexport SELECT_DRIVE()Bartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-02ide: use __ide_set_handler() in ide_execute_command()Bartlomiej Zolnierkiewicz
* Use __ide_set_handler() in ide_execute_command(). While at it: * Fix whitespace damage in ide_execute_command(). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: make probe_hwif() return an error valueBartlomiej Zolnierkiewicz
Make probe_hwif() return an error value. While at it: * Remove comment about MAX_DRIVES == 2 limitation (it is not special to probe_hwif(), it is a general assumption taken by a lot of IDE code). * Rename probe_hwif() to ide_probe_port(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: delete filenames/versions from commentsBartlomiej Zolnierkiewicz
Delete filenames/versions from comments. I'm leaving decisions about adding DRV_VERSION defines and MODULE_VERSION()-s to maintainers of the respective drivers. While at it: * Remove unused VERSION define from ide.c. * Remove unused/stale DRV_VERSION define from au1xxx-ide.c. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: switch ide_cmd_ioctl() to use REQ_TYPE_ATA_TASKFILE requestsBartlomiej Zolnierkiewicz
Based on the earlier work by Tejun Heo. There should be no functionality changes caused by this patch. Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: add ide_set_irq() inline helperBartlomiej Zolnierkiewicz
There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: merge ->dma_host_{on,off} methods into ->dma_host_set methodBartlomiej Zolnierkiewicz
Merge ->dma_host_{on,off} methods into ->dma_host_set method which takes 'int on' argument. There should be no functionality changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: move drive->using_dma check to callers of ->dma_host_on methodBartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: remove ->ide_dma_on and ->dma_off_quietly methods from ide_hwif_tBartlomiej Zolnierkiewicz
* Make ide_dma_off_quietly() and __ide_dma_on() always available. * Drop "__" prefix from __ide_dma_on(). * Check for presence of ->dma_host_on instead of ->ide_dma_on. * Convert all users of ->ide_dma_on and ->dma_off_quietly methods to use ide_dma_on() and ide_dma_off_quietly() instead. * Remove no longer needed ->ide_dma_on and ->dma_off_quietly methods from ide_hwif_t. * Make ide_dma_on() void. There should be no functionality changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: (hopefully) fix VDMA for CS5520Bartlomiej Zolnierkiewicz
* Set the correct hwif->dma_base for the second channel in ide_get_or_set_dma_base(). * Remove DMA enable code from cs5520_set_pio_mode(), this can be handled by the generic ->dma_host_on method now. * Add VDMA check to ide_config_drive_speed(). * drive->using_dma was never enabled since cs5520 host driver's ->ide_dma_on method overrided the generic ->ide_dma_on (so __ide_dma_on() was never called, drive->using_dma was never set and VDMA was never used since it depends on drive->using_dma). Fix it by using ->dma_host_on method instead of ->ide_dma_on (also add matching ->dma_host_off method). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-25ide: add ide_tf_read() helperBartlomiej Zolnierkiewicz
* Factor out code reading taskfile registers from ide_end_drive_cmd() to the new ide_tf_read() helper. * Add IDE_TFLAG_IN_* taskfile flags to indicate the need to load particular IDE taskfile register in ide_tf_read(). * Update ide_end_drive_cmd() to set respective IDE_TFLAG_IN_* taksfile flags. * Add ide_get_lba_addr() for getting LBA sector address from taskfile struct. * Factor out code getting sector address from ide_dump_ata_status() to the new ide_dump_sector() function. * Convert ide_dump_sector() to use ide_tf_read() and ide_get_lba_addr(). * Remove no longer needed ide_read_24(). The only change in functionality caused by this patch is that ide_dump_ata_status() no longer prints "high"/"low" parts of LBA48 sector address (of course LBA48 sector address is still printed). Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-25ide: fix registers loading order in ide_dump_ata_status()Bartlomiej Zolnierkiewicz
Fix registers loading order in ide_dump_ata_status()/ide_read_24(). Load registers in this order: * IDE_SECTOR_REG * IDE_LCYL_REG * IDE_HCYL_REG * IDE_SELECT_REG It shouldn't affect anything (just a usual paranoia to separate changes which change the way in which hardware is accessed from code cleanups). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-25ide: remove SELECT_INTERRUPT()Bartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-25ide: remove QUIRK_LIST()Bartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-25ide: remove stale ide.h "configuration options"Bartlomiej Zolnierkiewicz
Remove stale ide.h "configuration options": * INITIAL_MULT_COUNT - always defined to 0 * SUPPORT_SLOW_DATA_PORTS - unused * OK_TO_RESET_CONTROLLER - always defined to 1 * DISABLE_IRQ_NOSYNC - always defined to 0 Leave SUPPORT_VLB_SYNC (defined to 0 for CRIS and FRV, otherwise to 1) for now but disallow overriding it by <asm/ide.h>. There should be no functionality changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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