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path: root/drivers/pnp/quirks.c
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* pnp: have quirk_system_pci_resources() include io resourcesRene Herman2008-07-26
| | | | | | | | | | | | | | | | | quirk_system_pci_resources() disables a PnP mem resource that overlaps a PCI BAR so as to not keep the PCI driver from claiming the resource. Have it do the same for io resources. Here, ACPI claims ports that overlap with my soundcard causing the soundcard driver to fail to load. It's unknown why my ACPI BIOS claims those ports; it did not use to but this is not a (kernel) regression. Some odd BIOS reconfig triggered by temporarily removing the card seems to have brought this on. Signed-off-by: Rene Herman <rene.herman@gmail.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: convert resource options to single linked listBjorn Helgaas2008-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ISAPNP, PNPBIOS, and ACPI describe the "possible resource settings" of a device, i.e., the possibilities an OS bus driver has when it assigns I/O port, MMIO, and other resources to the device. PNP used to maintain this "possible resource setting" information in one independent option structure and a list of dependent option structures for each device. Each of these option structures had lists of I/O, memory, IRQ, and DMA resources, for example: dev independent options ind-io0 -> ind-io1 ... ind-mem0 -> ind-mem1 ... ... dependent option set 0 dep0-io0 -> dep0-io1 ... dep0-mem0 -> dep0-mem1 ... ... dependent option set 1 dep1-io0 -> dep1-io1 ... dep1-mem0 -> dep1-mem1 ... ... ... This data structure was designed for ISAPNP, where the OS configures device resource settings by writing directly to configuration registers. The OS can write the registers in arbitrary order much like it writes PCI BARs. However, for PNPBIOS and ACPI devices, the OS uses firmware interfaces that perform device configuration, and it is important to pass the desired settings to those interfaces in the correct order. The OS learns the correct order by using firmware interfaces that return the "current resource settings" and "possible resource settings," but the option structures above doesn't store the ordering information. This patch replaces the independent and dependent lists with a single list of options. For example, a device might have possible resource settings like this: dev options ind-io0 -> dep0-io0 -> dep1->io0 -> ind-io1 ... All the possible settings are in the same list, in the order they come from the firmware "possible resource settings" list. Each entry is tagged with an independent/dependent flag. Dependent entries also have a "set number" and an optional priority value. All dependent entries must be assigned from the same set. For example, the OS can use all the entries from dependent set 0, or all the entries from dependent set 1, but it cannot mix entries from set 0 with entries from set 1. Prior to this patch PNP didn't keep track of the order of this list, and it assigned all independent options first, then all dependent ones. Using the example above, that resulted in a "desired configuration" list like this: ind->io0 -> ind->io1 -> depN-io0 ... instead of the list the firmware expects, which looks like this: ind->io0 -> depN-io0 -> ind-io1 ... Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
* PNP: support optional IRQ resourcesBjorn Helgaas2008-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds an IORESOURCE_IRQ_OPTIONAL flag for use when assigning resources to a device. If the flag is set and we are unable to assign an IRQ to the device, we can leave the IRQ disabled but allow the overall resource allocation to succeed. Some devices request an IRQ, but can run without an IRQ (possibly with degraded performance). This flag lets us run the device without the IRQ instead of just leaving the device disabled. This is a reimplementation of this previous change by Rene Herman <rene.herman@gmail.com>: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3b73a223661ed137c5d3d2635f954382e94f5a43 I reimplemented this for two reasons: - to prepare for converting all resource options into a single linked list, as opposed to the per-resource-type lists we have now, and - to preserve the order and number of resource options. In PNPBIOS and ACPI, we configure a device by giving firmware a list of resource assignments. It is important that this list has exactly the same number of resources, in the same order, as the "template" list we got from the firmware in the first place. The problem of a sound card MPU401 being left disabled for want of an IRQ was reported by Uwe Bugla <uwe.bugla@gmx.de>. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
* PNP: introduce pnp_irq_mask_t typedefBjorn Helgaas2008-07-16
| | | | | | | | | | | This adds a typedef for the IRQ bitmap, which should cause no functional change, but will make it easier to pass a pointer to a bitmap to pnp_register_irq_resource(). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Acked-by: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
* PNP: replace pnp_resource_table with dynamically allocated resourcesBjorn Helgaas2008-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PNP used to have a fixed-size pnp_resource_table for tracking the resources used by a device. This table often overflowed, so we've had to increase the table size, which wastes memory because most devices have very few resources. This patch replaces the table with a linked list of resources where the entries are allocated on demand. This removes messages like these: pnpacpi: exceeded the max number of IO resources 00:01: too many I/O port resources References: http://bugzilla.kernel.org/show_bug.cgi?id=9535 http://bugzilla.kernel.org/show_bug.cgi?id=9740 http://lkml.org/lkml/2007/11/30/110 This patch also changes the way PNP uses the IORESOURCE_UNSET, IORESOURCE_AUTO, and IORESOURCE_DISABLED flags. Prior to this patch, the pnp_resource_table entries used the flags like this: IORESOURCE_UNSET This table entry is unused and available for use. When this flag is set, we shouldn't look at anything else in the resource structure. This flag is set when a resource table entry is initialized. IORESOURCE_AUTO This resource was assigned automatically by pnp_assign_{io,mem,etc}(). This flag is set when a resource table entry is initialized and cleared whenever we discover a resource setting by reading an ISAPNP config register, parsing a PNPBIOS resource data stream, parsing an ACPI _CRS list, or interpreting a sysfs "set" command. Resources marked IORESOURCE_AUTO are reinitialized and marked as IORESOURCE_UNSET by pnp_clean_resource_table() in these cases: - before we attempt to assign resources automatically, - if we fail to assign resources automatically, - after disabling a device IORESOURCE_DISABLED Set by pnp_assign_{io,mem,etc}() when automatic assignment fails. Also set by PNPBIOS and PNPACPI for: - invalid IRQs or GSI registration failures - invalid DMA channels - I/O ports above 0x10000 - mem ranges with negative length After this patch, there is no pnp_resource_table, and the resource list entries use the flags like this: IORESOURCE_UNSET This flag is no longer used in PNP. Instead of keeping IORESOURCE_UNSET entries in the resource list, we remove entries from the list and free them. IORESOURCE_AUTO No change in meaning: it still means the resource was assigned automatically by pnp_assign_{port,mem,etc}(), but these functions now set the bit explicitly. We still "clean" a device's resource list in the same places, but rather than reinitializing IORESOURCE_AUTO entries, we just remove them from the list. Note that IORESOURCE_AUTO entries are always at the end of the list, so removing them doesn't reorder other list entries. This is because non-IORESOURCE_AUTO entries are added by the ISAPNP, PNPBIOS, or PNPACPI "get resources" methods and by the sysfs "set" command. In each of these cases, we completely free the resource list first. IORESOURCE_DISABLED In addition to the cases where we used to set this flag, ISAPNP now adds an IORESOURCE_DISABLED resource when it reads a configuration register with a "disabled" value. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
* PNP: mark resources that conflict with PCI devices "disabled"Bjorn Helgaas2008-06-02
| | | | | | | | | | | | | | | Both the PNP/PCI conflict detection quirk and the PNP system driver must use the same mechanism to mark resources as disabled. I think it's best to keep the resource and to keep the type bit (IORESOURCE_MEM, etc), so that we match the list from firmware as closely as possible. Fixes this regression from 2.6.25: http://lkml.org/lkml/2008/6/1/82 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Tested-by: Avuton Olrich <avuton@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Clean up 'print_fn_descriptor_symbol()' typesLinus Torvalds2008-05-15
| | | | | | | | | | | | Everybody wants to pass it a function pointer, and in fact, that is what you _must_ pass it for it to make sense (since it knows that ia64 and ppc64 use descriptors for function pointers and fetches the actual address from there). So don't make the argument be a 'unsigned long' and force everybody to add a cast. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pnp: add ISAPnP MPU option quirksRene Herman2008-05-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AD181x and AZT230 chips don't support an IRQ-less MPU401 option but work fine without one. This adds (priority functional) IRQ-less options for each port option to help systems with few available IRQs. The AD1815 quirk can't use pnp_register_irq_resource() due to doubly penalizing the IRQ. Also, while not a practical issue due to no IRQ option being present for the dependents, this needs to add in front, not back. Doesn't use pnp_register_port_resource() for symetry with above. This does not delete the AD1815 independent option even though it should be empty after the IRQ transfer due to AD1816 coming with an empty but still present independent option by default. Was tested on AD1815, AD1816 and AZT2320. The ALSA snd-ad1818a driver also support the AZT2002 ID for MPU401 but this doesn't as I was unable to test it. Signed-off-by: Rene Herman <rene.herman@gmail.com> Tested-by: Uwe Bugla <uwe.bugla@gmx.de> Acked-by: Uwe Bugla <uwe.bugla@gmx.de> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Len Brown <len.brown@intel.com Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pnp: clean up pnp_fixup_device()Rene Herman2008-05-14
| | | | | | | | | | | | | | Make it look a bit more like pci_fixup_device/pci_do_fixups. Also print the PnP ID and delete the () from the "foo+0x0/0x1234()". Signed-off-by: Rene Herman <rene.herman@gmail.com> Tested-by: Uwe Bugla <uwe.bugla@gmx.de> Acked-by: Uwe Bugla <uwe.bugla@gmx.de> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Takashi Iwai <tiwai@suse.de> Cc: Len Brown <len.brown@intel.com Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: remove PNP_MAX_* usesBjorn Helgaas2008-04-29
| | | | | | | | | Remove some PNP_MAX_* uses. The pnp_resource_table isn't dynamic yet, but with pnp_get_resource(), we can start moving away from the table size constants. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
* PNP: remove pnp_mem_flags() as an lvalueBjorn Helgaas2008-04-29
| | | | | | | | | | A future change will change pnp_mem_flags() from a "#define that simplifies to an lvalue" to "an inline function that returns the flags value." Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-By: Rene Herman <rene.herman@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
* PNP: use dev_printk for quirk messagesBjorn Helgaas2008-04-28
| | | | | | | | | | Convert quirk printks to dev_printk(). [akpm@linux-foundation.org: fix warnings, improve output text] Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: simplify quirk debug outputBjorn Helgaas2008-04-28
| | | | | | | | | print_fn_descriptor_symbol() prints the address if we don't have a symbol, so no need to print both. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: disable PNP motherboard resources that overlap PCI BARsBjorn Helgaas2008-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some BIOSes have PNP motherboard devices with resources that partially overlap PCI BARs. The PNP system driver claims these motherboard resources, which prevents the normal PCI driver from requesting them later. This patch disables the PNP resources that conflict with PCI BARs so they won't be claimed by the PNP system driver. Of course, this only works if PCI devices have already been enumerated. Currently this is the case because PCI devices are discovered before any PNP init via this path: acpi_pci_root_init() -> acpi_pci_root_add() -> pci_acpi_scan_root() -> pci_scan_bus_parented() -> pci_scan_child_bus() -> ... Avuton Olrich tested this and confirmed that it fixes his ALSA sound card (see http://lkml.org/lkml/2008/1/27/168). References: https://bugzilla.redhat.com/show_bug.cgi?id=280641 https://bugzilla.redhat.com/show_bug.cgi?id=313491 http://lkml.org/lkml/2008/1/9/449 http://thread.gmane.org/gmane.linux.acpi.devel/27312 http://lkml.org/lkml/2008/1/27/168 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: revert Supermicro H8DCE motherboard quirkBjorn Helgaas2008-03-12
| | | | | | | | | There are other systems with similar problems (http://lkml.org/lkml/2008/1/27/168), so we need a more generic quirk. Remove the Supermicro-specific one first. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: disable Supermicro H8DCE motherboard resources that overlap SATA BARsBjorn Helgaas2008-02-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some Supermicro BIOSes describe a SATA PCI BAR as a motherboard resource. The PNP system driver claims motherboard resources, and this prevents the sata_nv driver from requesting it later. This patch disables the PNP0C01/PNP0C02 resources so they won't be claimed by the PNP system driver, so they'll available for sata_nv. This fixes the bugs below, where sata_nv detects only two out of four SATA drives. The signature includes dmesg lines similar to these: pnp: 00:09: iomem range 0xdfefc000-0xdfefcfff has been reserved pnp: 00:09: iomem range 0xdfefd000-0xdfefd3ff has been reserved pnp: 00:09: iomem range 0xdfefe000-0xdfefe3ff has been reserved PCI: Unable to reserve mem region #6:1000@dfefd000 for device 0000:80:07.0 sata_nv: probe of 0000:80:07.0 failed with error -16 PCI: Unable to reserve mem region #6:1000@dfefe000 for device 0000:80:08.0 sata_nv: probe of 0000:80:08.0 failed with error -16 References: https://bugzilla.redhat.com/show_bug.cgi?id=280641 https://bugzilla.redhat.com/show_bug.cgi?id=313491 http://lkml.org/lkml/2008/1/9/449 http://thread.gmane.org/gmane.linux.acpi.devel/27312 This is post-2.6.24 material. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: use dev_info(), dev_err(), etc in coreBjorn Helgaas2007-10-17
| | | | | | | | | | | | If we have the struct pnp_dev available, we can use dev_info(), dev_err(), etc., to give a little more information and consistency. [akpm@linux-foundation.org: fix warning] Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: remove SMCf010 quirkBjorn Helgaas2007-09-11
| | | | | | | | | | | | If the quirk enables the SIR part of the SMCf010 device, the 8250 driver may claim it as a legacy ttyS device, which makes the legacy probe in the smsc-ircc2 driver fail. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Andrey Borzenkov <arvidjaar@mail.ru> Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: fix up after LindentBjorn Helgaas2007-07-26
| | | | | | | | | | These are manual fixups after running Lindent. No functional change. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Len Brown <lenb@kernel.org> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: Lindent all source filesBjorn Helgaas2007-07-26
| | | | | | | | | | | | | | | | | | Run Lindent on all PNP source files. Produced by: $ quilt new pnp-lindent $ find drivers/pnp -name \*.[ch] | xargs quilt add $ quilt add include/linux/{pnp.h,pnpbios.h} $ scripts/Lindent drivers/pnp/*.c drivers/pnp/*/*.c include/linux/pnp*.h $ quilt refresh --sort Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Len Brown <lenb@kernel.org> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP SMCf010 quirk: work around Toshiba Portege 4000 ACPI issuesBjorn Helgaas2007-07-06
| | | | | | | | | | | | | | | | | | | | | | | | When we enable the SMCf010 IR device, the Toshiba Portege 4000 BIOS claims the device is working, but it really isn't configured correctly. The BIOS *will* configure it, but only if we call _SRS after (1) reversing the order of the SIR and FIR I/O port regions and (2) changing the IRQ from active-high to active-low. This patch addresses the 2.6.22 regression: "no irda0 interface (2.6.21 was OK), smsc does not find chip" I tested this on a Portege 4000. The smsc-ircc2 driver correctly detects the device, and "irattach irda0 -s && irdadump" shows transmitted and received packets. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Andrey Borzenkov <arvidjaar@mail.ru> Cc: Samuel Ortiz <samuel@sortiz.org> Cc: "Linus Walleij (LD/EAB)" <linus.walleij@ericsson.com> Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP SMCf010 quirk: auto-config device if BIOS left it brokenBjorn Helgaas2007-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | Some HP firmware leaves the SMCf010 IRDA device incompletely configured, or reports the wrong resources in _CRS. As a workaround, when we find such a device, try to auto-configure the device. This ignores the _CRS data, picks a config from _PRS, and runs _SRS to configure the device. This makes smsc-ircc2 work correctly with PNP resources (with no preconfiguration!) on all the machines I tested. I think Windows does something like this by default for all devices, so we should consider doing the same thing in Linux. This patch addresses part of the 2.6.22 regression: "no irda0 interface (2.6.21 was OK), smsc does not find chip" It fixes smsc-ircc2 PNP device detection on HP nc6000, nc6220, nw8000, nw8240, and possibly other machines. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Samuel Ortiz <samuel@sortiz.org> Cc: "Linus Walleij (LD/EAB)" <linus.walleij@ericsson.com> Cc: Andrey Borzenkov <arvidjaar@mail.ru> Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* PNP: workaround HP BIOS defect that leaves SMCF010 device partly enabledBjorn Helgaas2007-05-08
| | | | | | | | | | | | | | | | | | | | | Some HP/Compaq firmware reports via ACPI that the SMCF010 IR device is enabled, but in fact, it leaves the device partly disabled. HP nw8240 BIOS 68DTV Ver. F.0F, released 9/15/2005 is one BIOS that has this problem. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Keith Owens <kaos@ocs.com.au> Cc: Len Brown <lenb@kernel.org> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Matthieu CASTET <castet.matthieu@free.fr> Cc: Jean Tourrilhes <jt@hpl.hp.com> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Ville Syrjala <syrjala@sci.fi> Cc: Russell King <rmk+serial@arm.linux.org.uk> Cc: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] PNP: make pnp_dbg conditional directly on CONFIG_PNP_DEBUGBjorn Helgaas2005-09-07
| | | | | | | | | | | Seems pointless to require .c files to test CONFIG_PNP_DEBUG and conditionally define DEBUG before including <linux/pnp.h>. Just test CONFIG_PNP_DEBUG directly in pnp.h. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Adam Belay <ambx1@neo.rr.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
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!
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