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2010-03-05ALSA: usb-audio: refactor codeDaniel Mack
Clean up the usb audio driver by factoring out a lot of functions to separate files. Code for procfs, quirks, urbs, format parsers etc all got a new home now. Moved almost all special quirk handling to quirks.c and introduced new generic functions to handle them, so the exceptions do not pollute the whole driver. Renamed usbaudio.c to card.c because this is what it actually does now. Renamed usbmidi.c to midi.c for namespace clarity. Removed more things from usbaudio.h. The non-standard drivers were adopted accordingly. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-05ALSA: usb-audio: header file cleanupsDaniel Mack
Rename snd-usb-lib to snd-usbmidi-lib as MIDI functions are the only thing it actually contains. Introduce a new header file to only declare these functions. Introduced usbmixer.h for all functions exported by usbmixer.c. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23ALSA: usbaudio: consolidate header filesDaniel Mack
Use the definitions from linux/usb/audio.h all over the ALSA USB audio driver and add some missing definitions there as well. Use the endpoint attribute macros from linux/usb/ch9 and remove the own things from sound/usb/usbaudio.h. Now things are also nicely prefixed which makes understanding the code easier. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-16Merge branch 'fixes' into develJaroslav Kysela
2010-02-16ALSA: USB MIDI support for Access Music VirusTISebastien Alaiwan
Here's a patch that adds MIDI support through USB for one of the Access Music synths, the VirusTI. The synth uses standard USBMIDI protocol on its USB interface 3, although it does signal "vendor specific" class. A magic string has to be sent on interface 3 to enable the sending of MIDI from the synth (this string was found by sniffing usb communication of the Windows driver). This is all my patch does, and it works on my computer. Please note that the synth can also do standard usb audio I/O on its interfaces 2&3, which already works with the current snd-usb-audio driver, except for the audio input from the synth. I'm going to work on it when I have some time. Signed-off-by: Sebastien Alaiwan <sebastien.alaiwan@gmail.com> Signed-off-by: Clemens Ladisch <clemens@ladisch.de> (cosmetics, list terminator) Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2010-02-16ALSA: usb-audio: reduce MIDI packet size to work around broken firmwareClemens Ladisch
Extend the list of devices whose firmware does not expect more than one USB MIDI packet in one USB packet. bug report: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3752 Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: <stable@kernel.org> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2009-11-24sound: usb: make the USB MIDI module more independentClemens Ladisch
Remove the dependecy from the USB MIDI code on the snd_usb_audio structure. This allows using the USB MIDI module from another driver without having to pretend to be the generic USB audio driver. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-24sound: usb-audio: allow switching altsetting on Roland USB MIDI devicesClemens Ladisch
Add a mixer control to select between the two altsettings on Roland USB MIDI devices where the input endpoint is either bulk or interrupt. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-20ALSA: sound: usbmidi: Use hweight16Akinobu Mita
Use hweight16 instead of Brian Kernighan's/Peter Wegner's method Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-07-15sound: usb-audio: add MIDI drain callbackClemens Ladisch
When draining, instead of waiting for fifty milliseconds, just wait for the currently active URBs to complete. This cuts the usual waiting time down to one USB frame, or zero in the common case when there is no URB. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-07-15sound: usb-audio: use multiple output URBsClemens Ladisch
Some newer USB MIDI interfaces use rather small packet sizes, so to get enough bandwidth, we have to be able to send multiple packets in one USB frame, so we have to use multiple URBs. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-07-15sound: usb-audio: use multiple input URBsClemens Ladisch
Some newer USB MIDI interfaces use rather small packet sizes, so to get enough bandwidth, we have to be able to receive multiple packets in one USB frame, so we have to use multiple URBs. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-05-27sound: usb-audio: make the MotU Fastlane work againClemens Ladisch
Kernel 2.6.18 broke the MotU Fastlane, which uses duplicate endpoint numbers in a manner that is not only illegal but also confuses the kernel's endpoint descriptor caching mechanism. To work around this, we have to add a separate usb_set_interface() call to guide the USB core to the correct descriptors. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Reported-and-tested-by: David Fries <david@fries.net> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-02-16sound: usb-audio: fix uninitialized variable with M-Audio MIDI interfacesClemens Ladisch
Fix the snd_usbmidi_create_endpoints_midiman() function, which forgot to set the out_interval member of the endpoint info structure for Midiman/ M-Audio devices. Since kernel 2.6.24, any non-zero value makes the driver use interrupt transfers instead of bulk transfers. With EHCI controllers, these random interval values result in unbearably large latencies for output MIDI transfers. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Reported-by: David <devurandom@foobox.com> Tested-by: David <devurandom@foobox.com> Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-01-04ALSA: sound/usb: Use negated usb_endpoint_xfer_control, etcJulia Lawall
This patch extends 42a6e66f1e40a930d093c33ba0bb9d8d8e4555ed by using usb_endpoint_xfer_control, usb_endpoint_xfer_isoc, usb_endpoint_xfer_bulk, and usb_endpoint_xfer_int in the negated case as well. This patch also rewrites some calls to usb_endpoint_dir_in as negated calls to !usb_endpoint_dir_out, and vice versa, to better correspond to the intent of the original code. The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ struct usb_endpoint_descriptor *epd; @@ - (usb_endpoint_type(epd) != \(USB_ENDPOINT_XFER_CONTROL\|0\)) + !usb_endpoint_xfer_control(epd) @@ struct usb_endpoint_descriptor *epd; @@ - (usb_endpoint_type(epd) != \(USB_ENDPOINT_XFER_ISOC\|1\)) + !usb_endpoint_xfer_isoc(epd) @@ struct usb_endpoint_descriptor *epd; @@ - (usb_endpoint_type(epd) != \(USB_ENDPOINT_XFER_BULK\|2\)) + !usb_endpoint_xfer_bulk(epd) @@ struct usb_endpoint_descriptor *epd; @@ - (usb_endpoint_type(epd) != \(USB_ENDPOINT_XFER_INT\|3\)) + !usb_endpoint_xfer_int(epd) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-01-01ALSA: sound/usb: use USB API functions rather than constantsJulia Lawall
This set of patches introduces calls to the following set of functions: usb_endpoint_dir_in(epd) usb_endpoint_dir_out(epd) usb_endpoint_is_bulk_in(epd) usb_endpoint_is_bulk_out(epd) usb_endpoint_is_int_in(epd) usb_endpoint_is_int_out(epd) usb_endpoint_num(epd) usb_endpoint_type(epd) usb_endpoint_xfer_bulk(epd) usb_endpoint_xfer_control(epd) usb_endpoint_xfer_int(epd) usb_endpoint_xfer_isoc(epd) In some cases, introducing one of these functions is not possible, and it just replaces an explicit integer value by one of the following constants: USB_ENDPOINT_XFER_BULK USB_ENDPOINT_XFER_CONTROL USB_ENDPOINT_XFER_INT USB_ENDPOINT_XFER_ISOC An extract of the semantic patch that makes these changes is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r1@ struct usb_endpoint_descriptor *epd; @@ - ((epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) == - \(USB_ENDPOINT_XFER_CONTROL\|0\)) + usb_endpoint_xfer_control(epd) @r5@ struct usb_endpoint_descriptor *epd; @@ - ((epd->bEndpointAddress & \(USB_ENDPOINT_DIR_MASK\|0x80\)) == - \(USB_DIR_IN\|0x80\)) + usb_endpoint_dir_in(epd) @inc@ @@ #include <linux/usb.h> @depends on !inc && (r1||r5)@ @@ + #include <linux/usb.h> #include <linux/usb/...> // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-12-18ALSA: hda - Convert from takslet_hi_schedule() to tasklet_schedule()Takashi Iwai
Replace all tasklet_hi_schedule() callers with the normal tasklet_schedule(). The former often causes troubles with RT-kernels, and has actually no merit. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-10-10ALSA: usb - Fix possible Oops at USB-MIDI disconnectionTakashi Iwai
The endpoints should be released immediately at disconnection rather than the delayed release. This could be a reason of Oops at USB-audio device disconnection being used. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-08-01ALSA: Add USB US122L driverKarsten Wiese
Added a new US122L usb-audio driver. This driver works together with a dedicated alsa-lib plugin. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-02-22[ALSA] race between disconnect and error handling in usbmidiTakashi Iwai
The driver resubmits URBs from an error handler and schedules the error handler from the URBs' completion handlers. To reliably kill the cycle a flag must be used. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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>
2007-10-16[ALSA] usb-audio: add workaround for ESI MIDI Mate/RomIO IIClemens Ladisch
Force low speed USB MIDI devices like the ESI MIDI Mate and RomIO II to use interrupt transfers because the USB core would not be happy about low speed bulk transfers. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] usb-audio: allow output interrupt transfers for MIDIClemens Ladisch
Allow output interrupt transfers for some MIDI devices that require them. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] usb-audio: fix parsing of SysEx messages from CME keyboardsClemens Ladisch
When CME keyboards send a SysEx message (e.g. master volume), the USB packet uses a format different from the standard format. Parsing this packet according to the specification corrupts the SysEx message itself and can cause the following MIDI messages to be misinterpreted, too. This patch adds a workaround for this case. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11[ALSA] usb-audio: work around wrong wMaxPacketSize on ESI M4UClemens Ladisch
Add a workaround for the ESI M4U that claims to support 32-byte packets but ignores the remaining bytes of packets bigger than four bytes. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-05-11[ALSA] usb-audio: work around broken M-Audio MidiSport Uno firmwareClemens Ladisch
The firmware of the M-Audio USB Uno MIDI Interface has, at least in hardware revision 1.25, a bug that garbles its USB output. When it receives a Note On MIDI message that uses running status, the resulting USB MIDI packet has a wrong CIN (4 instead of 9) and a wrong length (2 bytes, the status byte is still missing). This patch adds a workaround to track the CINs and the MIDI messages of received USB MIDI packets to detect whether a packet with CIN 4 is a correct SysEx packet or a buggy running status packet. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-12-01usb: usbmidi kill urb cleanupMariusz Kozlowski
- usb_kill_urb() cleanup Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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)
2006-10-01[PATCH] kmemdup: some usersAlexey Dobriyan
Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27USB: Dealias -110 code (more complete)Pete Zaitcev
The purpose of this patch is to split off the case when a device does not reply on the lower level (which is reported by HC hardware), and a case when the device accepted the request, but does not reply at upper level. This redefinition allows to diagnose issues easier, without asking the user if the -110 happened "immediately". The usbmon splits such cases already thanks to its timestamp, but it's not always available. I adjusted all drivers which I found affected (by searching for "urb"). Out of tree drivers may suffer a little bit, but I do not expect much breakage. At worst they may print a few messages. Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-22[ALSA] USB midi: Remove duplicate CS_AUDIO_* #definesBen Williamson
Removed the CS_AUDIO_* #defines, which were duplicates of the class-specific USB_DT_CS_* #defines in <linux/usb_ch9.h>. Signed-off-by: Ben Williamson <ben.williamson@greyinnovation.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-06-22[ALSA] rawmidi: add get_port_info callback for sequencer information flagsClemens Ladisch
Add a get_port_info callback to the snd_rawmidi_global_ops structure to allow the USB MIDI driver to supply information flags for the sequencer ports created by seq_midi. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-03-22[ALSA] usb-audio: optimize snd_usbmidi_count_bits()Clemens Ladisch
Modules: USB generic driver Reduce the code size of the snd_usbmidi_count_bits() function by using simpler operations. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-03-22[ALSA] usb-audio: rename QUIRK_MIDI_MIDITECH to QUIRK_MIDI_CMEClemens Ladisch
Modules: USB generic driver Rename QUIRK_MIDI_MIDITECH to QUIRK_MIDI_CME because Miditech keyboards are built by CME and use the same protocol, and don't force a Miditech product name for the USB ID used by both Miditech and CME UF-x keyboards. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-03-22[ALSA] usb-audio: cosmetic changesClemens Ladisch
Modules: USB generic driver Move some entries around to keep them sorted by ID. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2006-03-22[ALSA] Add support for EDIROL UM-3exBrent Cook
Modules: USB generic driver This is my naive attempt at adding ALSA device support. The attached patch provides support for the EDIROL UM-3ex. This is a 3-port USB midi interface with a built-in USB hub and the ability to chain 2 other UM-3x's in a master-slave configuration. I only have one, so I do not know how this works in practice. Though this is a 3-port device, I had to throw in that 4th 'Control' interface to the definition in order to make the 3rd port work. If I set in/out_cables to 0x000b, a 3rd interface appears on the driver, but it does nothing. Changing it to 0x000f allows the 3rd interface to work, but of course interface 4 does not work because it does not exist. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03[ALSA] Remove xxx_t typedefs: USB-AudioTakashi Iwai
Modules: USB generic driver Remove xxx_t typedefs from the USB-Audio driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-11-04[ALSA] usb-audio: remove superfluous includeClemens Ladisch
Modules: USB generic driver Remove a superfluous include of the sound/minors.h header. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-11-04[ALSA] usb-audio: remove old compatibility wrappers (2/2)Clemens Ladisch
Modules: USB generic driver Move the usb_complete_callback() compatibility wrapper out of the kernel tree. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-11-04[ALSA] usb-audio: remove old compatibility wrappers (1/2)Clemens Ladisch
Modules: USB generic driver Move the usb_pipe_needs_resubmit() compatibility wrapper out of the kernel tree. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-11-04[ALSA] usb-audio: simplify MIDI quirk handlingClemens Ladisch
Modules: USB generic driver Simplify the handling of MIDI quirks by treating an interface without quirks as a QUIRK_MIDI_STANDARD_INTERFACE. This also fixes the bug where a MIDI_STANDARD quirk would not be recognized. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-10-28[PATCH] gfp_t: drivers/usbAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-12[ALSA] Replace with kzalloc() - othersTakashi Iwai
Documentation,SA11xx UDA1341 driver,Generic drivers,MPU401 UART,OPL3 OPL4,Digigram VX core,I2C cs8427,I2C lib core,I2C tea6330t,L3 drivers AK4114 receiver,AK4117 receiver,PDAudioCF driver,PPC PMAC driver SPARC AMD7930 driver,SPARC cs4231 driver,Synth,Common EMU synth USB generic driver,USB USX2Y Replace kcalloc(1,..) with kzalloc(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
2005-08-30[ALSA] usb-audio: throttle MIDI URB resubmits on USB errorsClemens Ladisch
USB generic driver When a USB error occurs that might indicate that the device has been unplugged, don't resubmit the URB immediately to prevent flooding the log with error messages before khubd has us disconnect()ed. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-08-30[ALSA] usb-audio: fix Emagic MIDI protocol handlingClemens Ladisch
USB generic driver Emagic devices pad their packets not with 0xff bytes but with a 0xff byte followed by garbage, so we have to stop at the first such byte. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-08-30[ALSA] usb-audio: use usb_buffer_alloc/freeClemens Ladisch
USB generic driver Use the USB buffer allocation functions to avoid repeated DMA mappings of our buffers, which are re-used quite a lot. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-07-28[ALSA] usb-audio - add support for Miditech USB MIDI keyboardsClemens Ladisch
USB generic driver Add support for Miditech Midistart and MidiStudio keyboards (another case of devices using the standard protocol but having no descriptors). Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-07-28[ALSA] usb-audio - rename QUIRK_MIDI_MOTU to QUIRK_MIDI_RAWClemens Ladisch
USB generic driver Rename the protocol used by the MOTU FastLane to 'raw' because it might be useful with other devices, and there are other MOTU interfaces that do not use this protocol. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29[ALSA] usb-audio - cache vendor/product IDsClemens Ladisch
USB generic driver Cache the decoded values of idVendor/idProduct to get rid of most of those ugly le16_to_cpu() calls. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
2005-05-29[ALSA] usb-audio - remove superfluous parameterClemens Ladisch
USB generic driver,USB USX2Y This patch removes the superfluous driver parameter from the disconnect functions. Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
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