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path: root/drivers/ata/pata_sl82c105.c
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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>
2007-07-09[libata] PATA drivers: remove ATA_FLAG_SRSTJeff Garzik
This flag only has meaning in old-EH drivers, and these drivers have already been converted to the new EH. Remove. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-21libata: bump versionsJeff Garzik
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11libata: clean up SFF init messTejun Heo
The intention of using port_mask in SFF init helpers was to eventually support exoctic configurations such as combination of legacy and native port on the same controller. This never became actually necessary and the related code always has been subtly broken one way or the other. Now that new init model is in place, there is no reason to make common helpers capable of handling all corner cases. Exotic cases can simply dealt within LLDs as necessary. This patch removes port_mask handling in SFF init helpers. SFF init helpers don't take n_ports argument and interpret it into port_mask anymore. All information is carried via port_info. n_ports argument is dropped and always two ports are allocated. LLD can tell SFF to skip certain port by marking it dummy. Note that SFF code has been treating unuvailable ports this way for a long time until recent breakage fix from Linus and is consistent with how other drivers handle with unavailable ports. This fixes 1-port legacy host handling still broken after the recent native mode fix and simplifies SFF init logic. The following changes are made... * ata_pci_init_native_host() and ata_init_legacy_host() both now try to initialized whatever they can and mark failed ports dummy. They return 0 if any port is successfully initialized. * ata_pci_prepare_native_host() and ata_pci_init_one() now doesn't take n_ports argument. All info should be specified via port_info array. Always two ports are allocated. * ata_pci_init_bmdma() exported to be used by LLDs in exotic cases. * port_info handling in all LLDs are standardized - all port_info arrays are const stack variable named ppi. Unless the second port is different from the first, its port_info is specified as NULL (tells libata that it's identical to the last non-NULL port_info). * pata_hpt37x/hpt3x2n: don't modify static variable directly. Make an on-stack copy instead as ata_piix does. * pata_uli: It has 4 ports instead of 2. Don't use ata_pci_prepare_native_host(). Allocate the host explicitly and use init helpers. It's simple enough. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-01libata: add deadline support to prereset and reset methodsTejun Heo
Add @deadline to prereset and reset methods and make them honor it. ata_wait_ready() which directly takes @deadline is implemented to be used as the wait function. This patch is in preparation for EH timing improvements. * ata_wait_ready() never does busy sleep. It's only used from EH and no wait in EH is that urgent. This function also prints 'be patient' message automatically after 5 secs of waiting if more than 3 secs is remaining till deadline. * ata_bus_post_reset() now fails with error code if any of its wait fails. This is important because earlier reset tries will have shorter timeout than the spec requires. If a device fails to respond before the short timeout, reset should be retried with longer timeout rather than silently ignoring the device. There are three behavior differences. 1. Timeout is applied to both devices at once, not separately. This is more consistent with what the spec says. 2. When a device passes devchk but fails to become ready before deadline. Previouly, post_reset would just succeed and let device classification remove the device. New code fails the reset thus causing reset retry. After a few times, EH will give up disabling the port. 3. When slave device passes devchk but fails to become accessible (TF-wise) after reset. Original code disables dev1 after 30s timeout and continues as if the device doesn't exist, while the patched code fails reset. When this happens, new code fails reset on whole port rather than proceeding with only the primary device. If the failing device is suffering transient problems, new code retries reset which is a better behavior. If the failing device is actually broken, the net effect is identical to it, but not to the other device sharing the channel. In the previous code, reset would have succeeded after 30s thus detecting the working one. In the new code, reset fails and whole port gets disabled. IMO, it's a pathological case anyway (broken device sharing bus with working one) and doesn't really matter. * ata_bus_softreset() is changed to return error code from ata_bus_post_reset(). It used to return 0 unconditionally. * Spin up waiting is to be removed and not converted to honor deadline. * To be on the safe side, deadline is set to 40s for the time being. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata_sl82c105: restore cable detect methodAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-03-02[libata] pata_{legacy,sc1200,sl82c105}: add missing hooksJeff Garzik
Alan Cox noticed several hooks in pata_* drivers were missing, when he authored his ->cable_detect hook patches. This patch extracts just those fixes from Alan's patches, adding the necessary hooks (usually ->freeze, ->thaw, and ->post_internal_cmd) to the drivers. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-26[libata] bump versionsJeff Garzik
Bump versions based on changes submitted during 2.6.21 merge window. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-21pata_sl82c105: remove un-needed code pathsAlan
Remove the DMA setup function. As pointed out by Sergey we set the actual DMA clock timing in set_dmamode so we don't actually need to do anything with it at set up time, but just leave the PIO timings loaded. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-15add delay around sl82c105_reset_engine callsOlaf Hering
The hald media changed polling does really confuse things. Noone knows why the delays are needed, but they give us access to the CD. An udelay(50) will give reliable access to the drive, but there is still one (or more) EH reset. The drive works without EH resets with udelay(100). Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-09pata_sl82c105: wrong assumptions about compatible PIO modesSergei Shtylyov
Fix the wrong "compatible" PIO mode choices: MWDMA0 has 480 ns cycle while PIO1 only has 383 ns cycle, and MWDMA2 timings matchs those of PIO4 exactly. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-09libata: add another IRQ calls (libata drivers)Akira Iguchi
This patch is against each libata driver. Two IRQ calls are added in ata_port_operations. - irq_on() is used to enable interrupts. - irq_ack() is used to acknowledge a device interrupt. In most drivers, ata_irq_on() and ata_irq_ack() are used for irq_on and irq_ack respectively. In some drivers (ex: ahci, sata_sil24) which cannot use them as is, ata_dummy_irq_on() and ata_dummy_irq_ack() are used. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-09libata: convert to iomapTejun Heo
Convert libata core layer and LLDs to use iomap. * managed iomap is used. Pointer to pcim_iomap_table() is cached at host->iomap and used through out LLDs. This basically replaces host->mmio_base. * if possible, pcim_iomap_regions() is used Most iomap operation conversions are taken from Jeff Garzik <jgarzik@pobox.com>'s iomap branch. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-09libata: update libata LLDs to use devresTejun Heo
Update libata LLDs to use devres. Core layer is already converted to support managed LLDs. This patch simplifies initialization and fixes many resource related bugs in init failure and detach path. For example, all converted drivers now handle ata_device_add() failure gracefully without excessive resource rollback code. As most resources are released automatically on driver detach, many drivers don't need or can do with much simpler ->{port|host}_stop(). In general, stop callbacks are need iff port or host needs to be given commands to shut it down. Note that freezing is enough in many cases and ports are automatically frozen before being detached. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-12-03[PATCH] libata: kill unnecessary sht->max_sectors initializationsTejun Heo
sht->max_sectors is overrided unconditionally in ->slave_configure. There's no reason to set it to any value. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-11-29[PATCH] libata: add missing sht->slave_destroyTejun Heo
Many LLDs are missing sht->slave_destroy. The method is mandatory to support device warm unplugging (echo 1 > /sys/.../delete). Without it, libata might access released scsi device. Signed-off-by: Tejun Heo <htejun@gmail.com>
2006-09-28[libata] PCI ID table cleanup in various driversJeff Garzik
* Use PCI_VDEVICE() macro * const-ify pci_device_id table * standardize list terminator as "{ }" * convert spaces to tab in pci_driver struct (Alan-ism) * various minor whitespace cleanups Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-27[libata] Don't use old-EH ->eng_timeout() hook when not neededJeff Garzik
The PATA driver set got converted to the new error handling setup, but the old hooks were accidentally left in place. Now, removed. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-26[PATCH] libata-eh: Remove layering violation and duplication when handling ↵Alan Cox
absent ports This removes the layering violation where drivers have to fiddle directly with EH flags. Instead we now recognize -ENOENT means "no port" and do the handling in the core code. This also removes an instance of a call to disable the port, and an identical printk from each driver doing this. Even better - future rule changes will be in one place only. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-31[libata #pata-drivers] Trim trailing whitespace.Jeff Garzik
2006-08-29[libata] Add a bunch of PATA drivers.Jeff Garzik
The vast majority of drivers and changes are from Alan Cox. Albert Lee contributed and maintains pata_pdc2027x. Adrian Bunk, Andrew Morton, and Tejun Heo contributed various minor fixes and updates. Signed-off-by: Jeff Garzik <jeff@garzik.org>