aboutsummaryrefslogtreecommitdiff
path: root/drivers/ide/pci/sl82c105.c
AgeCommit message (Collapse)Author
2008-04-18ppc/sandpoint: remove ppc_ide_md hooksBartlomiej Zolnierkiewicz
* Add IDE_HFLAG_FORCE_LEGACY_IRQS host flag for Motorola-Sandpoint platform to sl82c105 host driver. * Disable ide_generic host driver in arch/ppc/configs/sandpoint_defconfig and enable sl82c105 one. * Remove ppc_ide_md hooks from arch/ppc/platforms/sandpoint.c - no need for them (sl82c105 host driver takes care of all this setup). * Then remove no longer needed <linux/ide.h> include. * Also update arch/ppc/platforms/sandpoint.h. Unfortunately (unlike lopec's case) sl82c105 host driver was not enabled in defconfing so there is a funcionality change. [ Not a big deal since sl82c105 is superior over ide_generic. ] Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-18ppc/lopec: remove ppc_ide_md hooksBartlomiej Zolnierkiewicz
* Add IDE_HFLAG_FORCE_LEGACY_IRQS host flag for Motorola-LoPEC platform to sl82c105 host driver. * Remove ppc_ide_md hooks from arch/ppc/platforms/lopec.c - no need for them (sl82c105 host driver takes care of all this setup). * Then remove no longer needed <linux/ide.h> include. Looking at arch/ppc/configs/lopec_defconfig: ... CONFIG_IDE_GENERIC=y CONFIG_BLK_DEV_IDEPCI=y # CONFIG_IDEPCI_SHARE_IRQ is not set # CONFIG_BLK_DEV_OFFBOARD is not set CONFIG_BLK_DEV_GENERIC=y # CONFIG_BLK_DEV_OPTI621 is not set CONFIG_BLK_DEV_SL82C105=y ... there should be no functional changes unless somebody preferred to disable sl82c105 host driver and use only ide_generic one (but why would anybody want to do such thing :-). PS It seems that lopec_defconfig hasn't been updated for ages but if somebody is going to do it please look into disabling IDE_GENERIC and BLK_DEV_GENERIC config options. Thanks. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-02ide: remove needless includes from PCI host driversBartlomiej Zolnierkiewicz
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>
2008-02-01ide: keep pointer to struct device instead of struct pci_dev in ide_hwif_tBartlomiej Zolnierkiewicz
Keep pointer to struct device instead of struct pci_dev in ide_hwif_t. While on it: * Use *dev->dma_mask instead of pci_dev->dma_mask in ide_toggle_bounce(). There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26sl82c105: remove no longer needed ->selectproc methodBartlomiej Zolnierkiewicz
* Program register 0x40 in sl82c105_resetproc(). * Remove no longer needed sl82c105_selectproc() and pci_set_drvdata() calls. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26sl82c105: program DMA/PIO timings in ->dma_start/->ide_dma_endBartlomiej Zolnierkiewicz
* Program DMA timings in sl82c105_dma_start() (->dma_start method) before starting DMA transfer. * Add sl82c105_dma_end() (->ide_dma_end method) to switch back to PIO timings when DMA transfer is complete. * In sl82c105_set_pio_mode() program timings regardless of ->using_dma setting and in sl82c105_set_dma_mode() only cache the new timings. * Remove no longer needed sl82c105_{ide_dma_on,off_quietly}(). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-25ide: add IDE_HFLAG_ABUSE_SET_DMA_MODE host flagBartlomiej Zolnierkiewicz
* Add IDE_HFLAG_ABUSE_SET_DMA_MODE host flag and use it to decide what to do with transfer modes < XFER_PIO_0 in ide_set_xfer_rate(). * Set IDE_HFLAG_ABUSE_SET_DMA_MODE in host drivers that need it (aec62xx, amd74xx, cs5520, cs5535, hpt34x, hpt366, pdc202xx_old, serverworks, tc86c001 and via82cxxx) and cleanup ->set_dma_mode methods in host drivers that don't (IDE core code guarantees that ->set_dma_mode will be called only for modes which are present in SWDMA/MWDMA/UDMA masks). While at it: * Add IDE_HFLAGS_HPT34X/HPT3XX/PDC202XX/SVWKS define in hpt34x/hpt366/pdc202xx_old/serverworks host driver. 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>
2007-10-20ide: constify struct ide_port_infoBartlomiej Zolnierkiewicz
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-20ide: replace ide_pci_device_t by struct ide_port_infoBartlomiej Zolnierkiewicz
* Rename struct ide_pci_device_s to struct ide_port_info. * Remove ide_pci_device_t typedef. While at it: * Fix __ide_pci_register_driver() comment. * Fix aec62xx_init_one() comment. * Remove unused 'cds' field from ide_hwgroup_t. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-20ide: add IDE_HFLAG_{IO_32BIT,UNMASK_IRQS} host flagsBartlomiej Zolnierkiewicz
Add IDE_HFLAG_{IO_32BIT,UNMASK_IRQS} host flag to tell ide_pci_setup_ports() to set drive->{io_32bit,unmask} for both drives on the interface. Convert amd74xx, sl82c105 and via82cxxx host drivers to use these new host flags. While at it: * Add IDE_HFLAGS_AMD define (amd74xx host driver). * Add IDE_HFLAGS_VIA define (via82cxxx host driver). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-19ide: set drive->autotune in ide_pci_setup_ports()Bartlomiej Zolnierkiewicz
Majority of host drivers using IDE PCI layer set drive->autotune, the only exceptions are: generic.c ns87415.c rz1000.c trm290.c * no ->set_pio_mode method it821x.c: * if memory allocation fails drive->autotune won't be set (but there also won't be ->set_pio_mode method in such case) piix.c: * MPIIX controller (no ->init_hwif method so also no ->set_pio_mode method) However if there is no ->set_pio_mode method there are no changes in behavior w.r.t. PIO tuning so always set drive->autotune in ide_pci_setup_ports(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-19ide: add ->mwdma_mask and ->swdma_mask to ide_pci_device_t (take 2)Bartlomiej Zolnierkiewicz
* Add ->mwdma_mask and ->swdma_mask to ide_pci_device_t. * Set ide_hwif_t DMA masks using DMA masks from ide_pci_device_t in setup-pci.c::ide_pci_setup_ports() (iff DMA base is valid and ->init_hwif method may still override them). * Convert IDE PCI host drivers to use ide_pci_device_t DMA masks. While at it: * Use ATA_{UDMA,MWDMA,SWDMA}* defines. * hpt34x.c: add separate ide_pci_device_t instances for HPT343 and HPT345. * serverworks.c: fix DMA masks being set before checking DMA base. v2: * Add missing masks to DECLARE_GENERIC_PCI_DEV() macro. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-19ide: add IDE_HFLAG_NO_{DMA,AUTODMA} host flagsBartlomiej Zolnierkiewicz
Add IDE_HFLAG_NO_{DMA,AUTODMA} host flags. Convert all host drivers using ide_pci_device_t to use these flags instead of d->autodma and then remove no longer needed d->autodma. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-19ide: add IDE_HFLAG_BOOTABLE host flagBartlomiej Zolnierkiewicz
Add IDE_HFLAG_BOOTABLE host flag and IDE_HFLAG_OFF_BOARD define. Convert all host drivers using ide_pci_device_t to use IDE_HFLAG_{BOOTABLE,OFF_BOARD} instead of d->bootable and then remove no longer needed d->bootable. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-19ide: add IDE_HFLAG_NO_ATAPI_DMA host flagBartlomiej Zolnierkiewicz
Add IDE_HFLAG_NO_ATAPI_DMA host flag and set it in host drivers which don't support ATAPI DMA. Then remove no longer needed hwif->atapi_dma. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-16ide: remove hwif->autodma and drive->autodmaBartlomiej Zolnierkiewicz
* hpt34x.c: disable DMA masks for HPT345 (hwif->autodma is zero so DMA won't be enabled anyway). * trm290.c: disable IDE_HFLAG_TRUST_BIOS_FOR_DMA flag (hwif->autodma is zero so DMA won't be enabled anyway). * Check noautodma global variable instead of drive->autodma in ide_tune_dma(). This fixes handling of "ide=nodma" kernel parameter for icside, ide-cris, au1xxx-ide, pmac, it821x, jmicron, sgiioc4 and siimage host drivers. * Remove hwif->autodma (it was not checked by IDE core code anyway) and drive->autodma (was set by all host drivers - except HPT345/TRM290 special cases - unless "ide=nodma" was used). While at it: - remove needless printk() from icside.c - remove stale FIXME/comment from ide-probe.c - don't force DMA off if PCI bus-mastering had to be enabled in setup-pci.c (this setting was always later over-ridden by host drivers anyway) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-16ide: use PCI_VDEVICE() macroBartlomiej Zolnierkiewicz
While at it: - make struct pci_device_id tables const - use PCI_DEVICE_ID_ITE_8213 define in it8213.c - fix comment in generic.c Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-16ide: remove ->ide_dma_check (take 2)Bartlomiej Zolnierkiewicz
* Add IDE_HFLAG_TRUST_BIOS_FOR_DMA host flag for host drivers that depend on BIOS for programming device/controller for DMA. Set it in cy82c693, generic, ns87415, opti621 and trm290 host drivers. * Add IDE_HFLAG_VDMA host flag for host drivers using VDMA. Set it in cs5520 host driver. * Teach ide_tune_dma() about IDE_HFLAG_TRUST_BIOS_FOR_DMA flag. * Add generic ide_dma_check() helper and remove all open coded ->ide_dma_check implementations. Fix all places checking for presence of ->ide_dma_check hook to check for ->ide_dma_on instead. * Remove no longer needed code from config_drive_for_dma(). * Make ide_tune_dma() static. v2: * Fix config_drive_for_dma() return values. * Fix ide-dma.c build for CONFIG_BLK_DEV_IDEDMA_PCI=n by adding dummy config_drive_for_dma() inline. * Fix IDE_HFLAG_TRUST_BIOS_FOR_DMA handling in ide_dma_check(). * Fix init_hwif_it8213() comment. There should be no functionality changes caused by this patch. Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-16sl82c105: add PIO autotune fallback to ->ide_dma_checkBartlomiej Zolnierkiewicz
Since sl82c105 re-programs DMA/PIO timings for DMA enable/disable, and sets ->autotune this change shouldn't have any other effect than bringing sl82c105 driver in-line with other host drivers wrt ->ide_dma_check implementation. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-13ide: move ide_config_drive_speed() calls to upper layers (take 2)Bartlomiej Zolnierkiewicz
* Convert {ide_hwif_t,ide_pci_device_t}->host_flag to be u16. * Add IDE_HFLAG_POST_SET_MODE host flag to indicate the need to program the host for the transfer mode after programming the device. Set it in au1xxx-ide, amd74xx, cs5530, cs5535, pdc202xx_new, sc1200, pmac and via82cxxx host drivers. * Add IDE_HFLAG_NO_SET_MODE host flag to indicate the need to completely skip programming of host/device for the transfer mode ("smart" hosts). Set it in it821x host driver and check it in ide_tune_dma(). * Add ide_set_pio_mode()/ide_set_dma_mode() helpers and convert all direct ->set_pio_mode/->speedproc users to use these helpers. * Move ide_config_drive_speed() calls from ->set_pio_mode/->speedproc methods to callers. * Rename ->speedproc method to ->set_dma_mode, make it void and update all implementations accordingly. * Update ide_set_xfer_rate() comments. * Unexport ide_config_drive_speed(). v2: * Fix issues noticed by Sergei: - export ide_set_dma_mode() instead of moving ->set_pio_mode abuse wrt to setting DMA modes from sc1200_set_pio_mode() to do_special() - check IDE_HFLAG_NO_SET_MODE in ide_tune_dma() - check for (hwif->set_pio_mode) == NULL in ide_set_pio_mode() - check for (hwif->set_dma_mode) == NULL in ide_set_dma_mode() - return -1 from ide_set_{pio,dma}_mode() if ->set_{pio,dma}_mode == NULL - don't set ->set_{pio,dma}_mode on it821x in "smart" mode - fix build problem in pmac.c - minor fixes in au1xxx-ide.c/cs5530.c/siimage.c - improve patch description Changes in behavior caused by this patch: - HDIO_SET_PIO_MODE ioctl would now return -ENOSYS for attempts to change PIO mode if it821x controller is in "smart" mode - removal of two debugging printk-s (from cs5530.c and sc1200.c) - transfer modes 0x00-0x07 passed from user space may be programmed twice on the device (not really an issue since 0x00 is not supported correctly by any host driver ATM, 0x01 is not supported at all and 0x02-0x07 are invalid) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11ide: use only ->set_pio_mode method for programming PIO modes (take 2)Bartlomiej Zolnierkiewicz
Use ->set_pio_mode method to program PIO modes in ide_set_xfer_rate() (the only place which used ->speedproc to program PIO modes) and remove handling of PIO modes from all ->speedproc implementations. v2: * Fix pmac_ide_tune_chipset() comment. There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11ide: add ide_set{_max}_pio() (take 4)Bartlomiej Zolnierkiewicz
* Add IDE_HFLAG_ABUSE_{PREFETCH,FAST_DEVSEL,DMA_MODES} flags and set them in ht6560, cmd640, cmd64x and sc1200 host drivers. * Add set_pio_mode_abuse() for checking if host driver has a non-standard ->tuneproc() implementation and use it in do_special(). * Add ide_set_pio() for setting PIO mode (it uses hwif->pio_mask to find the maximum PIO mode supported by the host), also add ide_set_max_pio() wrapper for ide_set_pio() to use for auto-tuning. Convert users of ->tuneproc to use ide_set{_max}_pio() where possible. This leaves only do_special(), set_using_pio(), ide_hwif_restore() and ide_set_pio() as a direct users of ->tuneproc. * Remove no longer needed ide_get_best_pio_mode() calls and printk-s reporting PIO mode selected from ->tuneproc implementations. * Rename ->tuneproc hook to ->set_pio_mode and make 'pio' argument const. * Remove stale comment from ide_config_drive_speed(). v2: * Fix "ata_" prefix (Noticed by Jeff). v3: * Minor cleanups/fixups per Sergei's suggestions. v4: * Fix compile problem in drivers/ide/pci/cmd640.c (Noticed by Andrew Morton). * Improve some ->set_pio_mode comments. Reviewed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11ide: move ide_rate_filter() calls to the upper layer (take 2)Bartlomiej Zolnierkiewicz
* Move ide_rate_filter() calls from host drivers to IDE core. * Make ide_rate_filter() static. * Make 'speed' argument of ->speedproc const. v2: * Fix it8213_tune_chipset() comment. 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>
2007-07-20ide: add PIO masksBartlomiej Zolnierkiewicz
* Add ATA_PIO[0-6] defines to <linux/ata.h>. * Add ->pio_mask field to ide_pci_device_t and ide_hwif_t. * Add PIO masks to host drivers. <linux/ata.h> change ACK-ed by Jeff Garzik <jeff@garzik.org>. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-20ide: drop "PIO data" argument from ide_get_best_pio_mode()Bartlomiej Zolnierkiewicz
* Drop no longer needed "PIO data" argument from ide_get_best_pio_mode() and convert all users accordingly. * Remove no longer needed ide_pio_data_t. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-20ide: add ide_pio_cycle_time() helper (take 2)Bartlomiej Zolnierkiewicz
* Add ide_pio_cycle_time() helper. * Use it in ali14xx/ht6560b/qd65xx/cmd64{0,x}/sl82c105 and pmac host drivers (previously cycle time given by the device was only used for "pio" == 255). * Remove no longer needed ide_pio_data_t.cycle_time field. v2: * Fix "ata_" prefix (Noticed by Jeff). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-20ide: add ide_pci_device_t.host_flags (take 2)Bartlomiej Zolnierkiewicz
* Rename ide_pci_device_t.flags to ide_pci_device_t.host_flags and IDEPCI_FLAG_ISA_PORTS flag to IDE_HFLAG_ISA_PORTS. * Add IDE_HFLAG_SINGLE flag for single channel devices. * Convert core code and all IDE PCI drivers to use IDE_HFLAG_SINGLE and remove no longer needed ide_pci_device_t.channels field. v2: * Fix issues noticed by Sergei: - correct code alignment in scc_pata.c - s/IDE_HFLAG_SINGLE/~IDE_HFLAG_SINGLE/ in serverworks.c Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-20ide: add ide_dev_has_iordy() helper (take 4)Bartlomiej Zolnierkiewicz
* Add ide_dev_has_iordy() helper and use it sl82c105 host driver. * Remove no longer needed ide_pio_data_t.use_iordy field. v2/v3: * Fix issues noticed by Sergei: - correct patch description - fix comment in ide_get_best_pio_mode() v4: * Fix "ata_" prefix (Noticed by Jeff). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-11PCI: Change all drivers to use pci_device->revisionAuke Kok
Instead of all drivers reading pci config space to get the revision ID, they can now use the pci_device->revision member. This exposes some issues where drivers where reading a word or a dword for the revision number, and adding useless error-handling around the read. Some drivers even just read it for no purpose of all. In devices where the revision ID is being copied over and used in what appears to be the equivalent of hotpath, I have left the copy code and the cached copy as not to influence the driver's performance. Compile tested with make all{yes,mod}config on x86_64 and i386. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-09ide: make void and rename ide_dma_timeout() methodSergei Shtylyov
Since ide_dma_timeout() method's result is discarded, make it return 'void'. While at it, drop 'ide_' from the method's name, drop the '__' prefix from the default method's name, and do some cleanups in this method driver-wise: - in ide-dma.c, au1xxx-ide.c, and pdc202xx_old.c, define/use 'hwif' variable; - in au1xxx-ide.c, get rid of commented out printk(); - in sl82c105.c, get rid of unnecessary variables. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-07-09ide: make void and rename ide_dma_lostirq() methodSergei Shtylyov
Since ide_dma_lostirq() method's result is discarded, make it return 'void'. While at it, rename the method to dma_lost_irq(), drop the '__' prefix from the default method's name, and do some cleanups in this method driver-wise: - in aec62xx.c, rename the method in accordance with other drivers, and get rid of unnecessary variables there; - in pdc202xx_old.c, define/use 'hwif' variable; - in sgiioc4.c, rearrange the code to call the resetproc() method directly. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16sl82c105: Switch to ref counting APIAlan Cox
Not sure how this one got missed in the great purge some time ago but it did. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16ide: remove ide_dma_enable()Bartlomiej Zolnierkiewicz
* check ->speedproc return value in ide_tune_dma() * use ide_tune_dma() in cmd64x/cs5530/sc1200/siimage/sl82c105/scc_pata drivers * remove no longer needed ide_dma_enable() Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-16sl82c105: add speedproc() method and MWDMA0/1 supportSergei Shtylyov
Add the speedproc() method for setting transfer modes, modify config_for_dma() to call it and use ide_max_dma_mode() to select the best DMA mode. Add support for the multiword DMA modes 0 and 1, using the upper half of the 'drive_data' field to store the DMA timings to program into the drive control register when DMA is turned on for real. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-05sl82c105: DMA support code cleanup (take 4)Sergei Shtylyov
Fold the now equivalent code in the ide_dma_check() method into a mere call to ide_use_dma(). Make config_for_dma() return non-zero if DMA mode has been set and call it from the ide_dma_check() method instead of ide_dma_on(). Defer writing the DMA timings to the chip registers until DMA is really turned on (and do not enable IORDY for DMA). Remove unneeded code from the init_hwif() method, improve its overall looks. Rename the dma_start(), ide_dma_check(), and ide_dma_lostirq() methods, and also use more proper hwif->dma_command, fix printk() and comment in the latter one as well. While at it, cleanup style in several places. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-05-05sl82c105: rework PIO support (take 2)Sergei Shtylyov
Get rid of the 'pio_speed' member of 'ide_drive_t' that was only used by this driver by storing the PIO mode timings in the 'drive_data' instead -- this allows us to greatly simplify the process of "reloading" of the chip's timing register and do it right in sl82c150_dma_off_quietly() and to get rid of two extra arguments to config_for_pio() -- which got renamed to sl82c105_tune_pio() and now returns a PIO mode selected, with ide_config_drive_speed() call moved into the tuneproc() method, now called sl82c105_tune_drive() with the code to set drive's 'io_32bit' and 'unmask' flags in its turn moved to its proper place in the init_hwif() method. Also, while at it, rename get_timing_sl82c105() into get_pio_timings() and get rid of the code in it clamping cycle counts to 32 which was both incorrect and never executed anyway... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-02-17ide: make ide_hwif_t.ide_dma_{host_off,off_quietly} void (v2)Bartlomiej Zolnierkiewicz
* since ide_hwif_t.ide_dma_{host_off,off_quietly} always return '0' make these functions void and while at it drop "ide_" prefix * fix comment for __ide_dma_off_quietly() * make __ide_dma_{host_off,off_quietly,off}() void and drop "__" prefix v2: * while at it rename atiixp_ide_dma_host_off() to atiixp_dma_host_off(), sgiioc4_ide_dma_{host_off,off_quietly}() to sgiioc4_dma_{host_off,off_quietly}() and sl82c105_ide_dma_off_quietly() to sl82c105_dma_off_quietly() [ Noticed by Sergei Shtylyov <sshtylyov@ru.mvista.com>. ] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-02-17ide: add ide_set_dma() helper (v2)Bartlomiej Zolnierkiewicz
* add ide_set_dma() helper and make ide_hwif_t.ide_dma_check return -1 when DMA needs to be disabled (== need to call ->ide_dma_off_quietly) 0 when DMA needs to be enabled (== need to call ->ide_dma_on) 1 when DMA setting shouldn't be changed * fix IDE code to use ide_set_dma() instead if using ->ide_dma_check directly v2: * updated for scc_pata Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-02-17ide: use PIO/MMIO operations directly where possible (v2)Bartlomiej Zolnierkiewicz
This results in smaller/faster/simpler code and allows future optimizations. Also remove no longer needed ide[_mm]_{inl,outl}() and ide_hwif_t.{INL,OUTL}. v2: * updated for scc_pata Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-02-17sl82c105: DMA support fixesSergei Shtylyov
Fix a number of issues with the DMA support code: - driver claims support for all SW/MW DMA modes while supporting only MWDMA2; - ide_dma_check() method tries to enable DMA on the "known good" drives which don't support MWDMA2; - ide_dma_on() method upon failure to set drive to MWDMA2 re-tunes already tuned PIO mode and calls ide_dma_off() method instead of returning error; - ide_dma_off() method sets drive->current_speed while it doesn't actually change (only the PIO timings are re-loaded into the chip's registers); - init_hwif() method forcibly sets/resets both "drive DMA capable" bits while this is properly handled by ide_dma_{on,off}() methods being called later... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-01-27ide: add missing __init tags to IDE PCI host driversBartlomiej Zolnierkiewicz
also change __devinit tag for sgiioc4.c:ioc4_ide_init() to __init Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2006-12-08[PATCH] sl82c105: straighten up IDE control/status register cachingSergei Shtylyov
Straighten up the IDE control/status register caching -- you *really* can't cache the shared register per-channel and hope that it won't get out ouf sync. Set the PIO fallback mode to PIO0 for the slave drive as well as master -- there was no point in having them different (most probably a resutl of typo). Do a bit of reformat and cleanup while at it... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-28[PATCH] ide: housekeeping on IDE driversAlan Cox
Move auto arrays to static (const). Clean up using PCI_DEVICE in places, remove unreachable junk and dead code. Fix the serverworks cable detect logic (if ordering is wrong). Backport from libata. Plenty of scope for more cleanup left. Signed-off-by: Alan Cox <alan@redhat.com> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-12[ARM] Ensure sl82c105 IDE interfaces are serialized when using DMARussell King
We don't want to reset the DMA state machine while the other channel is in use. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-12[ARM] Fix broken sl82c105 DMA preventionRussell King
We must _never_ _ever_ on pain of death enable IDE DMA on SL82C105 chipsets where the southbridge revision is <= 5, otherwise data corruption will occur. Strangely this used to work, but something has changed in the upper echelons of the IDE layer to break the hosts decision to deny DMA. Let's make it crystal clear to the IDE layer that we know best. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-03[PATCH] ide: hotplug mark __devinit sl82c105.cHerbert Xu
From: Herbert Xu <herbert@gondor.apana.org.au> mark the __init section __devinit. Splitted up from the Debian kernel patch. Signed-off-by: maximilian attems <janitor@sternwelten.at> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!