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2009-05-12sound: remove driver_data direct access of struct deviceGreg Kroah-Hartman
In the near future, the driver core is going to not allow direct access to the driver_data pointer in struct device. Instead, the functions dev_get_drvdata() and dev_set_drvdata() should be used. These functions have been around since the beginning, so are backwards compatible with all older kernel versions. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-01-15ALSA: snd-aoa: handle older machinesJohannes Berg
This patch changes snd-aoa to handle some older machines that are currently handled by snd-powermac. snd-aoa has a number of advantages though, notably it can autoload better and is generally a more modern driver. By hardcoding the accepted device-ids (last hunk of the patch) I'm trying to avoid regressions because this driver will otherwise load automatically and not let snd-powermac load. People who are unhappy with snd-powermac and have a device-id property in the device tree are encouraged to read this patch and make a patch to amend this as appropriate. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-12-25Merge branch 'topic/aoa' into to-pushTakashi Iwai
2008-10-23ALSA: aoa: clean up file namesJohannes Berg
This cleans up the apple onboard audio driver filenames. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-10-23ALSA: aoa i2sbus: don't overwrite module parameterJohannes Berg
We shouldn't modify a global variable here. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-01-31[ALSA] Remove sound/driver.hTakashi Iwai
This header file exists only for some hacks to adapt alsa-driver tree. It's useless for building in the kernel. Let's move a few lines in it to sound/core.h and remove it. With this patch, sound/driver.h isn't removed but has just a single compile warning to include it. This should be really killed in future. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] aoa - fix compile warningTakashi Iwai
Set a proper error code in the error path of i2sbus_attach_codec(). Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31[ALSA] add number of periods constraint to snd-aoaHeikki Lindholm
The aoa driver is not specifying constraints on number of periods, and, it seems, it might end with a non-integer number, which it cannot deal with. Fix by adding a proper constraint. Signed-off-by: Heikki Lindholm <holindho@cs.helsinki.fi> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-05-11[ALSA] snd-aoa-i2sbus: use MODULE_DEVICE_TABLE instead of plain MODULE_ALIASJohannes Berg
This patch changes snd-aoa-i2sbus to use MODULE_DEVICE_TABLE instead of a hardcoded MODULE_ALIAS. Thanks to Sylvain Munaut for pointing this out. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-07[POWERPC] Rename device_is_compatible to of_device_is_compatibleStephen Rothwell
for consistency with other Open Firmware interfaces (and Sparc). This is just a straight replacement. This leaves the compatibility define in place. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-13[POWERPC] Rename get_property to of_get_property: soundStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-13[POWERPC] get_property returns constStephen Rothwell
This just tidies up some of the remains. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-09[ALSA] aoa i2sbus: Stop Apple i2s DMA gracefullyPaul Mackerras
This fixes the problem of getting extra bytes inserted at the beginning of a recording when using the Apple i2s interface and DBDMA controller. It turns out that we can't just abort the DMA; we have to let it stop at the end of a command, and then wait for the S7 bit to be set before turning off the DBDMA controller. Doing that for playback doesn't seem to be necessary, but doesn't hurt either. We use the technique used by the Darwin driver: make each transfer command branch to a stop command if the S0 status bit is set. Thus we can ask the DMA controller to stop at the end of the current command by setting S0. The interrupt routine now looks at and clears the status word of the DBDMA command ring. This is necessary so it can know when the DBDMA controller has seen that S0 is set, and so when it should look for the DBDMA controller being stopped and S7 being set. This also ended up simplifying the calculation in i2sbus_pcm_pointer. Tested on a 15 inch albook. [Addition by Johannes] I modified this patch and added the suspend/resume bits to it to get my powermac into a decent state when playing sound across suspend to disk that has a different bitrate from what the firmware programs the hardware to. I also added the SNDRV_PCM_INFO_JOINT_DUPLEX flag because it seemed the right thing to do and I was looking at the info stuff. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09[ALSA] aoa: fix up i2sbus_attach_codecJohannes Berg
This patch changes i2sbus_attach_codec to implement a proper error handling strategy using labels to jump to the right part. Since it has an elaborate set-up sequence it also needs that tear-down, which I had hard-coded inbetween all the checks. This increases readability and should reduce .text size as well. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-02-09[ALSA] aoa: set device pointer in pcmsJohannes Berg
This patch makes a few whitespace cleanups and makes i2sbus assign the new struct device pointer in struct snd_pcm so that the proper device symlink shows up in sysfs. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-07-10[PATCH] aoa: i2sbus: revamp control layerBenjamin Herrenschmidt
This patch revamps the i2sbus control layer by using the macio/keylargo functions instead of directly mapping. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10[PATCH] aoa: i2sbus: fix for PowerMac7,2 and 7,3Benjamin Herrenschmidt
This patch cleans up the resource handling in i2sbus and adds workarounds for the broken device trees on the PowerMac7,2 and 7,3. Some of this code will later move again when macio_asic is going to export all the sub-nodes too. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10[PATCH] aoa: i2sbus: move module parameter declaration upBenjamin Herrenschmidt
This patch moves the i2sbus 'force' module parameter declaration to the top of the file. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10[PATCH] Fix snd-aoa irq conversionAndreas Schwab
Use proper irq mapping interface for snd-aoa-i2sbus. Signed-off-by: Andreas Schwab <schwab@suse.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03[POWERPC] Add new interrupt mapping core and change platforms to use itBenjamin Herrenschmidt
This adds the new irq remapper core and removes the old one. Because there are some fundamental conflicts with the old code, like the value of NO_IRQ which I'm now setting to 0 (as per discussions with Linus), etc..., this commit also changes the relevant platform and driver code over to use the new remapper (so as not to cause difficulties later in bisecting). This patch removes the old pre-parsing of the open firmware interrupt tree along with all the bogus assumptions it made to try to renumber interrupts according to the platform. This is all to be handled by the new code now. For the pSeries XICS interrupt controller, a single remapper host is created for the whole machine regardless of how many interrupt presentation and source controllers are found, and it's set to match any device node that isn't a 8259. That works fine on pSeries and avoids having to deal with some of the complexities of split source controllers vs. presentation controllers in the pSeries device trees. The powerpc i8259 PIC driver now always requests the legacy interrupt range. It also has the feature of being able to match any device node (including NULL) if passed no device node as an input. That will help porting over platforms with broken device-trees like Pegasos who don't have a proper interrupt tree. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-22[ALSA] snd-aoa: add snd-aoaJohannes Berg
This large patch adds all of snd-aoa. Consisting of many modules, it currently replaces snd-powermac for all layout-id based machines and handles many more (for example new powerbooks and powermacs with digital output that previously couldn't be used at all). It also has support for all layout-IDs that Apple has (judging from their Info.plist file) but not all are tested. The driver currently has 2 known regressions over snd-powermac: * it doesn't handle powermac 7,2 and 7,3 * it doesn't have a DRC control on snapper-based machines I will fix those during the 2.6.18 development cycle. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Takashi Iwai <tiwai@suse.de>