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* libata: implement and use ata_port_desc() to report port configurationTejun Heo2007-10-121-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, port configuration reporting has the following problems. * iomapped address is reported instead of raw address * report contains irrelevant fields or lacks necessary fields for non-SFF controllers. * host->irq/irq2 are there just for reporting and hacky. This patch implements and uses ata_port_desc() and ata_port_pbar_desc(). ata_port_desc() is almost identical to ata_ehi_push_desc() except that it takes @ap instead of @ehi, has no locking requirement, can only be used during host initialization and " " is used as separator instead of ", ". ata_port_pbar_desc() is a helper to ease reporting of a PCI BAR or an offsetted address into it. LLD pushes whatever description it wants using the above two functions. The accumulated description is printed on host registration after "[S/P]ATA max MAX_XFERMODE ". SFF init helpers and ata_host_activate() automatically add descriptions for addresses and irq respectively, so only LLDs which isn't standard SFF need to add custom descriptions. In many cases, such controllers need to report different things anyway. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata: Switch most of the remaining SFF drivers to ata_sff_port_startAlan Cox2007-10-121-1/+1
| | | | | | | | This avoids allocating DMA buffers if not needed but at the moment is mostly just a neatness item. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [libata] Remove ->port_disable() hookJeff Garzik2007-10-121-1/+0
| | | | | | | | It was always set to ata_port_disable(). Removed the hook, and replaced the very few ap->ops->port_disable() callsites with direct calls to ata_port_disable(). Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [libata] Remove ->irq_ack() hook, and ata_dummy_irq_on()Jeff Garzik2007-10-121-1/+0
| | | | | | | | | | | | | * ->irq_ack() is redundant to what the irq handler already performs... chk-status + irq-clear. Furthermore, it is only called in one place, when screaming-irq-debugging is enabled, so we don't want to bother with a hook just for that. * ata_dummy_irq_on() is only ever used in drivers that have no callpath reaching ->irq_on(). Remove .irq_on hook from those drivers, and the now-unused ata_dummy_irq_on() Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata-link: introduce ata_linkTejun Heo2007-10-121-1/+1
| | | | | | | | | | | | | | | | | | | Introduce ata_link. It abstracts PHY and sits between ata_port and ata_device. This new level of abstraction is necessary to support SATA Port Multiplier, which basically adds a bunch of links (PHYs) to a ATA host port. Fields related to command execution, spd_limit and EH are per-link and thus moved to ata_link. This patch only defines the host link. Multiple link handling will be added later. Also, a lot of ap->link derefences are added but many of them will be removed as each part is converted to deal directly with ata_link instead of ata_port. This patch introduces no behavior change. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata: bump versionsJeff Garzik2007-05-211-1/+1
| | | | Signed-off-by: Jeff Garzik <jeff@garzik.org>
* SPIN_LOCK_UNLOCKED cleanup in drivers/ata/pata_winbond.cMilind Arun Choudhary2007-04-281-1/+1
| | | | | | | | | remove SPIN_LOCK_UNLOCKED, use DEFINE_SPINLOCK instead Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata: convert the remaining PATA drivers to new init modelTejun Heo2007-04-281-51/+46
| | | | | | | | | | | | | | | | | Convert pdc_adma, pata_cs5520, pata_isapnp, pata_ixp4xx_cf, pata_legacy, pata_mpc52xx, pata_mpiix, pata_pcmcia, pata_pdc2027x, pata_platform, pata_qdi, pata_scc and pata_winbond to new init model. * init_one()'s now follow more consistent init order * cs5520 now registers one host with two ports, not two hosts. If any of the two ports are disabled, it's made dummy as other drivers do. Tested pdc_adma and pata_legacy. Both are as broken as before. The rest are compile tested only. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* pata_winbondAlan Cox2007-04-281-1/+0
| | | | | | | Not a PCI device so doesn't need PCI includes Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* pata_winbond: restore cable methodAlan Cox2007-04-281-0/+1
| | | | | | 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>
* [libata] bump versionsJeff Garzik2007-02-261-1/+1
| | | | | | Bump versions based on changes submitted during 2.6.21 merge window. Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata: add another IRQ calls (libata drivers)Akira Iguchi2007-02-091-0/+2
| | | | | | | | | | | | | | | | | | 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>
* libata: convert to iomapTejun Heo2007-02-091-8/+19
| | | | | | | | | | | | | | | | 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>
* libata: update libata LLDs to use devresTejun Heo2007-02-091-3/+1
| | | | | | | | | | | | | | | | | 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>
* [libata] trim trailing whitespaceJeff Garzik2007-02-091-8/+8
| | | | | | Most of these contributed by that mysterious figger known as A.C. Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] ata: fix platform_device_register_simple() error checkAkinobu Mita2006-12-161-2/+2
| | | | | | | | | | | The return value of platform_device_register_simple() should be checked by IS_ERR(). Cc: Jeff Garzik <jgarzik@pobox.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] libata: kill unnecessary sht->max_sectors initializationsTejun Heo2006-12-031-1/+0
| | | | | | | 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>
* [PATCH] libata: add missing sht->slave_destroyTejun Heo2006-12-031-0/+1
| | | | | | | Add missing sht->slave_destroy. Most drivers received this fix in didn't. Fix those four drives. Signed-off-by: Tejun Heo <htejun@gmail.com>
* [PATCH] libata: Winbond supportAlan Cox2006-12-011-0/+306
Winbond 83759A support in non-multichip mode (afaik nobody ever used multichip mode anyway). The 83759 is not supported by this driver as it is already handled elsewhere and doens't use the same interfaces. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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