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2015-04-13Merge branch 'for-next' into for-linusTakashi Iwai2-5/+5
2015-04-08ALSA: bebob: fix to processing in big-endian machine for sending cueTakashi Sakamoto1-4/+4
Some M-Audio devices require to receive bootup command just after powering on, while codes in BeBoB driver doesn't work properly in big-endian machine because the command should be aligned by little-endian. This commit fixes this bug. This fix should go to stable kernel. Cc: Takayuki Shiroma <t.shiroma.oki@gmail.com> Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-12Merge branch 'for-linus' into for-nextTakashi Iwai3-13/+12
2015-03-10ALSA: firewire-lib: leave unit reference counting completelyTakashi Sakamoto1-2/+1
With previous commit, this module managed to leave the counting to each drivers, but the isochronous resources functionality still increment/decrement the count. This commit purge such codes to leave the responsibility to each drivers. Fix: c6f224dc20ad ('ALSA: firewire-lib: remove reference counting') Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-10Revert "ALSA: dice: fix wrong offsets for Dice interface"Takashi Sakamoto2-11/+11
This reverts commit 8cdebf71098c07168ef6335e2f1f35d85dbe3049. The reverted commit breaks out-stream functionality of Dice driver. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-10ALSA: firewire: Fix trivial typos in commentsYannick Guerrini2-5/+5
Change 'propper' to 'proper' Change 'paramters' to 'parameters' Change 'SYT_INTEVAL' to 'SYT_INTERVAL' Change 'aligh'/'alighed' to 'align'/'aligned' Signed-off-by: Yannick Guerrini <yguerrini@tomshardware.fr> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-01ALSA: dice: fix wrong offsets for Dice interfaceTakashi Sakamoto2-11/+11
For received packet stream, the offset of 'RX_SEQ_START' locates after the offset of 'RX_NUMBER_MIDI', although current macro and proc output includes wrong offsets. Fortunately, this bug doesn't affect streaming functionality because these macro is not used. This commit fixes these wrong macro and outputs. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-27ALSA: oxfw: fix a condition and return code in start_stream()Takashi Sakamoto1-2/+3
The amdtp_stream_wait_callback() doesn't return minus value and the return code is not for error code. This commit fixes with a propper condition and an error code. Fixes: f3699e2c7745 ('ALSA: oxfw: Change the way to start stream') Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-23ALSA: fireworks/bebob/dice/oxfw: make it possible to shutdown safelyTakashi Sakamoto6-28/+15
A part of these drivers, especially BeBoB driver, are programmed to wait some events. Thus the drivers should not destroy any data in .remove() context. This commit moves some destructors from 'struct fw_driver.remove()' to 'struct snd_card.private_free()' to shutdown safely. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-23ALSA: fireworks/bebob/dice/oxfw: allow stream destructor after releasing runtimeTakashi Sakamoto4-21/+30
Currently stream destructor in each driver has a problem to be called in a context in which sound card object is released, because the destructors call amdtp_stream_pcm_abort() and touch PCM runtime data. The PCM runtime data is destroyed in application's context with snd_pcm_close(), on the other hand PCM substream data is destroyed after sound card object is released, in most case after all of ALSA character devices are released. When PCM runtime is destroyed and PCM substream is remained, amdtp_stream_pcm_abort() touches PCM runtime data and causes Null-pointer-dereference. This commit changes stream destructors and allows each driver to call it after releasing runtime. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-23ALSA: firewire-lib: remove reference countingTakashi Sakamoto1-2/+1
AMDTP helper functions increment/decrement reference counter for an instance of FireWire unit, while it's complicated for each driver to process error state. In previous commit, each driver has the role of reference counting. This commit removes this role from the helper function. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-23ALSA: fireworks/bebob/dice/oxfw: add reference-counting for FireWire unitTakashi Sakamoto4-4/+42
Fireworks and Dice drivers try to touch instances of FireWire unit after sound card object is released, while references to the unit is decremented in .remove(). When unplugging during streaming, sound card object is released after .remove(), thus Fireworks and Dice drivers causes GPF or Null-pointer-dereferencing to application processes because an instance of FireWire unit was already released. This commit adds reference-counting for FireWire unit in drivers to allow them to touch an instance of FireWire unit after .remove(). In most case, any operations after .remove() may be failed safely. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Cc: <stable@vger.kernel.org> # 3.19+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-23ALSA: firewire-lib: fix an unexpected byte sequence for micro signTakashi Sakamoto1-1/+1
The sign for microsecond (U+0085, MICRO SIGN) was encoded to '0x c2 b5' by UTF-8 character encoding scheme. But the byte sequence was converted to '0x c3 82 c2 b5' in a previous commit. As a result, the byte sequence cannot represent microsecond sign in UTF-8 or ASCII. This may confuse developers. This commit replaces the sign to string expression with 'microseconds' to purge superfluous troubles. Fixes: 5c697e5b46ef("ALSA: firewire-lib: remove rx_blocks_for_midi quirk") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-16ALSA: firewire-lib: limit the MIDI data rateClemens Ladisch2-6/+57
Do no send MIDI bytes at the full rate at which FireWire packets happen to be sent, but restrict them to the actual rate of a real MIDI port. This is required by the specification, and prevents data loss when the device's buffer overruns. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Tested-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-16ALSA: firewire-lib: remove rx_blocks_for_midi quirkClemens Ladisch4-19/+8
There are several devices that expect to receive MIDI data only in the first eight data blocks of a packet. If the driver restricts the data rate to the allowed rate (as mandated by the specification, but not yet implemented by this driver), this happens naturally. Therefore, there is no reason to ever try to use more data packets with any device. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Tested-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-07ALSA: fireworks: fix an endianness bug for transaction lengthTakashi Sakamoto1-1/+1
Although the 't->length' is a big-endian value, it's used without any conversion. This means that the driver always uses 'length' parameter. Fixes: 555e8a8f7f14("ALSA: fireworks: Add command/response functionality into hwdep interface") Reported-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-15ALSA: oxfw: some signedness bugsDan Carpenter3-5/+6
This code tends to use unsigned variables by default and it causes signedness bugs when we use negative variables for error handling. The "i" and "j" variables are used to iterated over small positive values and so they should be type "int". The "len" variable doesn't *need* to be signed but it should be signed to make the code easier to read and audit. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-14ALSA: oxfw: fix detect_loud_models() return valueDan Carpenter1-1/+1
This code causes a static checker warning: sound/firewire/oxfw/oxfw.c:46 detect_loud_models() warn: signedness bug returning '(-2)' The detect_loud_models() function should return false on falure, so that we don't try to set up the loud code for hardware that doesn't support it. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: oxfw: Add hwdep interfaceTakashi Sakamoto8-2/+276
This interface is designed for mixer/control application. By using this interface, an application can get information about firewire node, can lock/unlock kernel streaming and can get notification at starting/stopping kernel streaming. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: oxfw: Add support for capture/playback MIDI messagesTakashi Sakamoto5-1/+208
This commit adds MIDI functionality with an assumption of 'if the device has MIDI comformant data channels in its stream formation, the device has one MIDI port'. When no streams have already started, MIDI functionality starts stream with current sampling rate. When MIDI functionality has already starts some streams and PCM functionality is going to start streams at different sampling rate, this driver stops streams once and changes sampling rate, then restarts streams for both PCM/MIDI substreams. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: oxfw: add support for capturing PCM samplesTakashi Sakamoto1-20/+180
In previous commit, a support for transmitted packets is added. This commit add a support for capturing PCM samples. When any streams are already started, this driver should not change sampling rate of the device, thus this commit also adds a restriction of sampling rate in this situation. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: oxfw: Add support AMDTP in-streamTakashi Sakamoto5-75/+279
Previous commit adds support for some devices which can capture PCM samples. These devices transmit AMDTP stream in non-blocking mode. This commit adds functionality to handle AMDTP incoming stream. OXFW seems to have two quirks: - Transmits packets with non-zero dbc in its beginning - Transmits packets with wrong values in syt field For the first quirk, this commit adds CIP_SKIP_INIT_DBC_CHECK flag for incoming stream to skip first check of dbc. For the second quirk, this commit doesn't add duplex stream which Fireworks/BeBoB drivers use. So OXFW driver generates syt value for outgoing stream. Here are examples of a sequence of packets transmitted by Behringer F-Control Audio 202. There are differences between sequences of syt value when OXFW driver transfers outgoing stream or not. When driver gives no outgoing stream: Index Payload CIP_Header_0 CIP_Header_1 38 14 00020092 900103D1 39 12 00020098 900102FF 40 12 0002009D 9001027F 41 14 000200A2 90010396 42 14 000200A8 900102E8 43 12 000200AE 90010219 44 14 000200B3 90010331 45 12 000200B9 9001025F 46 14 000200BE 90010376 47 12 000200C4 900102A1 00 12 000200C9 9001023E 01 14 000200CE 90010358 02 12 000200D4 90010289 03 16 000200D9 900103A3 04 12 000200E0 900102DD 05 14 000200E5 900103F1 06 12 000200EB 90010335 07 12 000200F0 90010263 08 14 000200F5 9001037C 09 12 000200FB 900102AE When driver gives outgoing stream: Index Payload CIP_Header_0 CIP_Header_1 38 12 000200BD 900104A8 39 14 000200C2 900104A8 40 12 000200C8 900104AC 41 14 000200CD 900104A9 42 12 000200D3 900104B1 43 14 000200D8 900104A8 44 12 000200DE 900104AA 45 14 000200E3 900104A9 46 14 000200E9 900104AE 47 12 000200EF 900104A8 00 14 000200F4 900104AD 01 12 000200FA 900104A7 02 14 000200FF 900104A9 03 12 00020005 900104A9 04 14 0002000A 900104B1 05 12 00020010 900104AA 06 14 00020015 900104AD 07 12 0002001B 900104A7 08 14 00020020 900104AC 09 12 00020026 900104A7 Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: oxfw: Add support for Behringer/Mackie devicesTakashi Sakamoto2-6/+91
Some devices produced by Behringer/Mackie are based on OXFW970/971. This commit adds support for them. Additionally, this commit changes the way to name card with some information in config rom. Ids of some Mackie(Loud) models are not identified, therefore this commit applies name detection for these models. The devices support capture/playback of PCM-samples and some of them supports capture/playback of MIDI messages. These functionalities are implemented by followed commits. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: oxfw: Change the way to start streamTakashi Sakamoto3-48/+138
In past commit, this driver can keep stream formations for each sampling rate. So its stream functionality can decide stream formations with given some parameters. This commit moves related codes from PCM functionality to stream functionality. Furthermore, to set stream format correctly, this commit uses AV/C Stream Format Information command instead of AV/C Input/Output Plug Signal Format command. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: oxfw: Add proc interface for debugging purposeTakashi Sakamoto5-1/+118
This commit adds proc interface to get information about stream formation. This commit also adds snd_oxfw_stream_get_current_formation() to get current stream formation. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: oxfw: Change the way to make PCM rules/constraintsTakashi Sakamoto4-86/+410
In previous commit, this driver can get to know stream formations at each supported sampling rates. This commit uses it to make PCM rules/constraints and obsoletes hard-coded rules/constraints. For this purpose, this commit adds 'struct snd_oxfw_stream_formation' and snd_oxfw_stream_parse_format() to parse data channel formation of data block. According to datasheet of OXFW970/971, they support 32.0kHz to 196.0kHz. As long as developers investigate, some devices are confirmed to have several formats for the same sampling rate. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: oxfw: Add support for AV/C stream format command to get/set supported stream formationTakashi Sakamoto3-1/+187
OXFW970/971 may supports AV/C Stream Format Information Specification 1.1 Working Draft (Apr 2005, 1394TA). By using this command, drivers can get to know stream formations which device supports. This commit adds 'EXTENDED STREAM FORMAT INFORMATION' command. This command has two subfunctions, 'SINGLE' and 'LIST'. Drivers can use 'SINGLE' subfunction to know/set current formation of AMDTP stream, Drivers can use 'LIST' subfunction to know an available formation of AMDTP stream in a certain sampling rate. But some devices don't implement the 'LIST' subfunction. So this commit uses an assumption that 'if they don't implement it, they don't change stream formation depending on current each sampling rate'. With this assumption, this driver generates formations for such devices by: 1.getting current formation by SINGLE subfunction 2.getting supported sampling rates 3.applying current formation for all of supported sampling rates Followed commit implements a parser of this format information. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: oxfw: Change the way to name cardTakashi Sakamoto2-23/+34
This is a preparation for more models. In following commit, members of 'struct snd_card' related to name becomes to consists of vendor and model strings in device's config-rom. Current supported devices also has strings in their config rom, but the strings are too long to name sound card, thus this driver still keep hard-coded vendor and model names for them. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: dice: Add support for MIDI capture/playbackTakashi Sakamoto5-2/+168
This commit adds a support for MIDI capture/playback When MIDI substrams already start streaming and PCM substreams are going to join at different sampling rate, streams are stopped once. Then sampling rate is changed and streams are restarted. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: dice: Add support for capturing PCM samplesTakashi Sakamoto2-17/+147
This commit adds a support for capturing PCM samples. When opposite PCM substream is already running, available sampling rate is limited at current one. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: dice: Support for non SYT-Match sampling clock source modeTakashi Sakamoto4-19/+58
This commit allows this driver to handle devices with non SYT-Match sampling clock source. When sampling clock source is SYT-Match mode, devices handle 'presentation timestamp' in received packets and generates sampling clock according to the information. In this case, driver is synchronization master and must transfer correct value in SYT field of each packets in outgoing stream, then the outgoing stream is a master stream. On the other hand, non SYT-Match mode, devices do this. So drivers must pick up the value in SYT field of incoming packets and use the value for outgoing stream. Currently firewire-lib module achieve this work. Furthermore, without SYT-Match and internal clock source, the sampling rate should be fixed for the other devices connected to the handled device. This commit add a restriction of sampling rate at this situation. With these implementations, this driver has no need to set clock source. This commit remove set function. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: dice: Add support for duplex streams with synchronizationTakashi Sakamoto4-87/+202
This commit adds support for AMDTP in-stream. As a result, Dice driver supports full duplex streams with synchronization. AMDTP can transfer timestamps in its packets. By handling the timestamp, devices can synchronize to the other devices or drivers on the same bus. When Dice chipset is 'enabled', it starts streams with correct settings. This 'enable' register is global, thus, when a stream is started to run, an opposite stream can't start unless turning off 'enable'. Therefore a pair of streams must be running. This causes a loss of CPU usage when single stream is needed for neither playbacking or capturing. This commit assumes that playback-only models also have a functionality to transmit stream for delivering timestamps. Currently, sampling clock source is restricted to SYT-Match mode. This is improved in followed commit. I note that at SYT-Match mode, Dice can select from 4 streams for synchronization but this driver uses the 1st stream only for simplicity. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-10ALSA: dice: Change the way to start streamTakashi Sakamoto4-131/+143
Streaming functionality can start streams when rate is given but currently some codes are in PCM functionality. This commit changes the way to start stream and add some arrangement to make it easy to understand the way. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-01ALSA: dice: fix semicolon.cocci warningsFengguang Wu1-1/+1
sound/firewire/dice/dice-transaction.c:34:2-3: Unneeded semicolon Removes unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci CC: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: oxfw: Split control functionality to a new fileTakashi Sakamoto4-277/+287
This is a help for works in followed patches. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: oxfw: Split PCM functionality to a new fileTakashi Sakamoto4-240/+255
This is a help for works in followed patches. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: oxfw: Split stream functionality to a new file and add a header fileTakashi Sakamoto4-109/+159
This is a help for works in followed patches. And this commit remove 'fw_unit_get()/fw_unit_put()' because these are called by helper functions in 'snd-firewire-lib'. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: oxfw: Move to its own directoryTakashi Sakamoto3-5/+7
Followed commits add much codes. To make the work easy, this commit creates own directory and move current file to it. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: speakers: Rename to oxfw and rename some membersTakashi Sakamoto3-177/+180
This commit renames 'firewire-speakers' to 'oxfw' to enhance support for devices which based on OXFW970/971. A line for MODULE_ALIAS is added. Additionally, to help for works in followed paches, some members in private structure are renamed. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: dice: remove experimental stateTakashi Sakamoto1-2/+2
Some developers test this driver, thus it's better to remove its experimental state. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: dice: Add new functions for constraints of PCM parametersTakashi Sakamoto1-44/+65
This commit adds a new functions and some arrangement for PCM restriction. This arrangement is due to the number of channels which each Dice device has. I note that minimum number for period becomes 2, instead of 1 because its PCM functionality has SNDRV_PCM_INFO_BATCH, this means that the driver uses double (or more) buffering so the minimum number for period should be 2. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: dice: Split proc interface into a fileTakashi Sakamoto4-245/+257
This commit adds a file and move some codes related to proc output. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: dice: Split hwdep functionality into a fileTakashi Sakamoto4-182/+195
This commit adds a file and move some codes related to hwdep functionality. This interface is designed for mixer/control application. By using hwdep interface, the application can get information about firewire node, can lock/unlock kernel streaming and can get notification at starting/stopping kernel streaming. Additionally, this interface give a way to read Dice notification. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: dice: Split PCM functionality into a fileTakashi Sakamoto5-292/+305
This commit adds a file and move some codes related to PCM functionality. Currently PCM playback is supported. PCM capture will be supported in followed commits. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: dice: Split stream functionality into a fileTakashi Sakamoto4-233/+288
This commit adds a file with some helper functions for streaming, and move some codes into the file with some arrangements. Well-known CMP is not used to start/stop streams for Dice chipset. It's achieved by writing to specific address. We call this way as 'enable'. When devices are 'enabled', streaming starts in registered isochronous channel. Some helper functions are already implemented in previous commit. Basically, the stream is compliant to IEC 61883-6, so-called as AMDTP. But Dice has a specific quirk, so called-as 'Dual Wire'. This quirk is applied at 176.4/192.0kHz. In this mode, each packet includes double number of events than number in the specification, and stream runs at a half of sampling rate. There is another quirk at bus reset. Dice chipset handles drivers' request but don't re-enable streaming. So stream should be stopped. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: dice: Split transaction functionality into a fileTakashi Sakamoto4-383/+653
This commit adds a file with some helper functions for transaction, and move some codes into the file with some arrangements. For Dice chipset, well-known FCP or AV/C commands are not used to control devices. It's achieved by read/write transactions into specific addresses. Dice's address area is split into 5 areas. Each area has its own role. The offset for each area can be got by reading head of the address area. By reading these areas, drivers can get to know device status. By writing these areas, drivers can change device status. Dice has a specific mechanism called as 'notification'. When device status is changed, Dice devices tells the event by sending transaction. This notification is sent to an address which drivers register in advance. But this causes an issue to drivers. To handle the notification, drivers need to allocate its own callback function to the address region in host controller. This region is exclusive. For the other applications, drivers must give a mechanism to read the received notification. For this purpose, Dice driver already implements hwdep interface. Dice chipset doesn't allow drivers to register several addresses. In this reason, when this driver is applied to a device, the other drivers should _not_ try to register its own address to the device. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: dice: Move file to its own directoryTakashi Sakamoto4-5/+6
In followed commits, dice driver is split into several files. For easily managing these files, this commit adds subdirectory and move file into the directory. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: dice: Rename structure and its membersTakashi Sakamoto1-81/+81
Currently, dice driver supports AMDTP out-stream. In followed commits, AMDTP in-stream will be supported but current name of members in dice structure are not propper. This commit renames these members to proper name. Additionally, for easily distinguishing local symbols from structure tag, rename dice tag into snd_dice. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-29ALSA: dice: suppress checkpatch.pl warningsTakashi Sakamoto1-4/+5
The checkpatch.pl generates some warnings due to: - C99 comment - a line over 80 characters - min() for parameters with different types Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-11-18ALSA: firewire-lib: fix kerneldoc errorsTakashi Sakamoto2-2/+24
Complete missing parameters, correct wrong reference, and add an explaination about the differences between the latest specification and our implementation. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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