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* ALSA: firewire-lib: postpone to start IR contextTakashi Sakamoto2019-10-191-6/+73
| | | | | | | | | | | | | | | | | | | | | | | | Some devices have a quirk to postpone transmission of isoc packet for several dozen or hundred isoc cycles since configured to transmit. Furthermore, some devices have a quirk to transmit isoc packet with discontinued data of its header. In 1394 OHCI specification, software allows to start isoc context with certain isoc cycle. Linux firewire subsystem has kernel API to use it as well. This commit uses the functionality of 1394 OHCI controller to handle the quirks. At present, this feature is convenient to ALSA bebob and fireface driver. As a result, some devices can be safely handled, as long as I know: - MAudio FireWire solo - MAudio ProFire Lightbridge - MAudio FireWire 410 - Roland FA-66 Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191018061911.24909-7-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: handle several AMDTP streams in callback handler of IRQ ↵Takashi Sakamoto2019-10-191-43/+136
| | | | | | | | | | | | | | | | | | | | | | target This commit changes AMDTP domain to run on an IT context of 1394 OHCI as IRQ target. No hardware interrupt is scheduled for the other isoc contexts. All of the isoc context are processed in a callback for an isoc context of IRQ target. The IRQ target is automatically selected from a list of AMDTP streams, thus users of AMDTP domain should add an AMDTP stream for IT context at least. The reason to select IT context as IRQ target is that the IT context runs on local 1394 OHCI controller and it can be used as reliable, constant IRQ generator. On the other hand, IR context can include skip cycle according to isoc packet transferred by device. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191018061911.24909-6-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: cancel flushing isoc context in the laste step to ↵Takashi Sakamoto2019-10-191-4/+0
| | | | | | | | | | | | | | process context callback The aim of AMDTP domain is to process several isoc context in the same time. However, current implementation is against this idea because it flushes each isoc context in the end of processing context callback. This commit cancels it. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191018061911.24909-5-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: replace ack callback to flush isoc contexts in AMDTP domainTakashi Sakamoto2019-10-191-9/+15
| | | | | | | | | | An isoc context for AMDTP stream is flushed to queue packet by a call of pcm.ack. This commit extends this for AMDTP domain. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191018061911.24909-4-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: replace pointer callback to flush isoc contexts in AMDTP ↵Takashi Sakamoto2019-10-191-21/+30
| | | | | | | | | | | | domain An isoc context for AMDTP stream is flushed to queue packet by a call of pcm.pointer. This commit extends this for AMDTP domain. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191018061911.24909-3-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: tune the minimum available size of PCM periodTakashi Sakamoto2019-10-181-1/+13
| | | | | | | | | | | | | | | | | | | | In IEC 61883-1/6, one isoc packet can transfer events up to the value of syt interval. This comes from the interval of isoc cycle. As 1394 OHCI controller can generate hardware IRQ per isoc packet, the interval is calculated as 125 usec. In IEC 61883-1/6, two ways of transmission is described; blocking and non-blocking methods. In blocking method, the sequence of packet includes 'empty' or 'NODATA' packets which include no events. In non-blocking method, the number of events per packet is variable up to the syt interval. This commit uses double of the value of syt interval as minimum available size of PCM period due to the above protocol design. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191017155424.885-13-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: tune the maximum available size of PCM periodTakashi Sakamoto2019-10-181-11/+18
| | | | | | | | | | | | | | Linux driver for 1394 OHCI controller voluntarily flushes isoc context when total size of accumulated context header reached PAGE_SIZE. This kicks tasklet for the isoc context. This is inconvenient to process runtime of PCM substream. This commit adds a restriction of the maximum size of PCM period to avoid this behaviour. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191017155424.885-12-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: schedule hardware IRQ according to the size of PCM periodTakashi Sakamoto2019-10-181-15/+55
| | | | | | | | | | | | | | | | | ALSA IEC 61883-1/6 packet streaming engine controls 1394 OHCI controller to generate hardware IRQ for fixed number of isochronous packets (=16) since its first commit. This commit allow the engine to generate it for variable period according to the number of event to handle. For outgoing stream, internal calculator is used to check the accumulated events. For incoming stream, the number of data block in the packet of stream is used to check the accumulated events. When it's unavailable, fixed number of packet roughly calculated in advance is used instead of event counting. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191017155424.885-11-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: use variable size of queue for isoc packets instead of ↵Takashi Sakamoto2019-10-181-17/+28
| | | | | | | | | | | | | | | | | fixed size The number of packets in packet buffer has been fixed number (=48) since first commit of ALSA IEC 61883-1/6 packet streaming engine. This commit allows the engine to use variable number of packets in the buffer. The size is calculated by a parameter in AMDTP domain structure surely to store the number of events in the packets of buffer. Although the value of parameter is expected to come from 'period size' parameter of PCM substream, at present 48 is still used. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191017155424.885-2-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: add a member into AMDTP domain for events per periodTakashi Sakamoto2019-10-171-0/+4
| | | | | | | | | | | | | | | | | | | | | In IEC 61883-6, it's called as 'event' what has presentation time represented by timestamp in CIP header. Although the ratio of the number of event against the number of data block is different depending on event data type represented by the specific field in CIP header, it's just one in the most cases supported by ALSA IEC 61883-1/6 engine. In 1394 OHCI specification, applications can schedule hardware IRQ by configuring descriptor with IRQ flag for packet against each isochronous cycle. For future commit, I use the hardware IRQ for isoc IT context to acknowledge the elapse of PCM period for both playback/capture directions on AMDTP streams in the same domain. This commit is a preparation for the above idea. This commit adds a member into AMDTP domain structure to record the number of PCM frames. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20191007110532.30270-2-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: remove WARN_ON() at destruction of AMDTP domainTakashi Sakamoto2019-09-071-1/+2
| | | | | | | | | | | | | | | | The destructor of AMDTP domain has WARN_ON() for the list of associated AMDTP stream. Although this reminds a case that developers forget to program consumer drivers to stop AMDTP domain, it hits when AMDTP domain is not initialized yet. This occurs when initialization of sound card fails as well and it's superfluous. This commit removes the WARN_ON. Although the API to AMDTP domain does nothing, it's left for future usage. Fixes: 3ec3d7a3ff106 ("ALSA: firewire-lib: add AMDTP domain structure to handle several isoc contexts") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20190906131414.15370-1-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: fix isoc cycle count to which rx packet is scheduledTakashi Sakamoto2019-08-291-1/+1
| | | | | | | | | | When introducing the list of packet descriptor, for rx packet, the calculation of scheduled isoc cycle is omitted. This commit fixes the bug. Fixes: f4f6ae7b7c1f ("ALSA: firewire-lib: use packet descriptor for IT context") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: localize kernel APIs to start/stop each AMDTP streamTakashi Sakamoto2019-08-051-4/+2
| | | | | | | | As a result to support AMDTP domain, no drivers call kernel APIs to start/stop each AMDTP stream. This commit localize these APIs. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: add a kernel API to start AMDTP streams in AMDTP domainTakashi Sakamoto2019-08-051-0/+24
| | | | | | | | This commit adds a kernel API to start a couple of isochronous contexts for some AMDTP streams. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: add a kernel API to add AMDTP stream into AMDTP domainTakashi Sakamoto2019-08-051-0/+26
| | | | | | | | This commit adds a kernel API to insert AMDTP stream to list in AMDTP domain. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: add a kernel API to stop a couple of AMDTP streams in ↵Takashi Sakamoto2019-08-051-0/+16
| | | | | | | | | | | AMDTP domain This commit adds a kernel API to stop a couple of isochronous contexts for AMDTP streams. The API is not protected with any lock primitive. Callers should use this with enough lock against concurrent access. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: add AMDTP domain structure to handle several isoc contextsTakashi Sakamoto2019-08-051-0/+22
| | | | | | | | | This commit adds 'struct amdtp_domain' structure. This structure has list of instance of AMDTP stream to handle a couple of isochronous contexts. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: process payload of isoc context according to packet ↵Takashi Sakamoto2019-07-221-15/+10
| | | | | | | | | | descriptors This commit changes each of data block processing layer so that it receives list of packet descriptor. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: pass packet descriptor to data block processing layerTakashi Sakamoto2019-07-221-4/+2
| | | | | | | | | This commit changes signature of callback function to call data block processing layer with packet descriptor. At present, the layer is called per packet. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: code refactoring to process context payloadsTakashi Sakamoto2019-07-221-25/+22
| | | | | | | | This is code refactoring for common processing for payloads of ishocornous context. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: code refactoring to process PCM substreamTakashi Sakamoto2019-07-221-20/+25
| | | | | | | | This is code refactoring to separate PCM substream processing from packet queueing. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: use packet descriptor for IR contextTakashi Sakamoto2019-07-221-33/+63
| | | | | | | | This commit uses packet descriptor to parse headers of IR context and parse timing information for sequence transferred by target device. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: use packet descriptor for IT contextTakashi Sakamoto2019-07-221-24/+44
| | | | | | | | This commit uses packet descriptor to parse headers of IT context and generate timing information for ideal sequence. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: add list of packet descriptorTakashi Sakamoto2019-07-221-3/+12
| | | | | | | | | | | | | | | In current implementation of ALSA IEC 61883-1/6 packet streaming engine, 16 packets are handled in one interrupt of isochronous context of OHCI 1394. Overall packet processing runs for each. However, this is not better in a point to split the processing into several parts. This commit is an attempt to add intermediate representation for parameters required for the parts. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: pass no syt information to data block processing layerTakashi Sakamoto2019-07-221-3/+2
| | | | | | | | | | | In a previous commit, the variable passed from packet streaming layer for syt variable is useless. This commit obsoletes it. In my future work, the syt information is passed to data block processing layer by another way. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: add syt_override member for some protocolsTakashi Sakamoto2019-07-221-0/+6
| | | | | | | | | | | | | | | Some protocols don't use syt field of CIP header to represent presentation timestamp. For such protocol, ALSA IEC 61883-1/6 packet streaming engine uses a pointer into local variable for the value of syt to call data block processing layer. However, it can decide the value when initializing packet streaming layer. This commit adds 'syt_override' member for packet streaming layer. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: operate data block counter in top level of processing ↵Takashi Sakamoto2019-07-221-27/+26
| | | | | | | | | | | for IR context In ALSA IEC 61883-1/6 packet streaming engine, two types of data block counter are supported. This commit applies code refactoring to make it explicitly for IR context. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: operate data block counter in top level of processing ↵Takashi Sakamoto2019-07-221-19/+20
| | | | | | | | | | | for IT context In ALSA IEC 61883-1/6 packet streaming engine, two types of data block counter are supported. This commit applies code refactoring to make it explicitly for IT context. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: pass data block counter to data block processing layerTakashi Sakamoto2019-07-221-2/+2
| | | | | | | | | | | | | | | This is a preparation for future commit that 'struct amdtp_stream.data_block_count' does not represent the value of data block count for current data block. However, data block count is required for calculation of sequence index in sequence-multiplied data channel. Some of data block processing layer require it; e.g. for AM824 data block. This commit passes data block count to the processing layer. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: pass data block count as an argument to tracepoints eventTakashi Sakamoto2019-07-221-2/+2
| | | | | | | | | This is a preparation for future commit that 'struct amdtp_stream.data_block_count' does not represent the value of data block count for current data block. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: obsolete ctx_data.tx.first_dbc with CIP_UNALIGHED_DBC flagTakashi Sakamoto2019-07-221-2/+1
| | | | | | | | | | | | | | | | | | | | | Recent firmware for Fireworks board module have a quirk to start transmission of CIP with non-zero value for its data block counter. In current implementation of ALSA firewire stack, the quirk is handled by 'struct amdtp_stream.ctx_data.tx.first_dbc' with value 0x02. However, the value comes from reverse engineering. It's better to handle this quirk without the explicit value. In a process to parse CIP header, the quirk of data block counter affects decision of sequence index in sequence-multiplexed data channel; i.e. MIDI conformant data channel. In Fireworks, the index is decided by the number of data blocks from top of the same CIP, thus the value of data block counter is useless. This commit adds CIP_UNALIGHED_DBC flag and obsoletes the explicit value for this quirk. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: code refactoring for local variablesTakashi Sakamoto2019-07-081-6/+8
| | | | | | | | It's better to use int type for loop index. For consistency, the name of local variable for the number of data block should be plural. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: code refactoring for post operation to data block counterTakashi Sakamoto2019-07-081-10/+10
| | | | | | | | | | | | As a result of former commits, post operation to data block count for cases without CIP_DBC_IS_END_EVENT can be done just with data_block_counter member of amdtp_stream structure. This commit adds code refactoring to obsolete local variable for data block counter. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: code refactoring for error path of parser for CIP headerTakashi Sakamoto2019-07-081-9/+2
| | | | | | | | | | When a parser for CIP header returns -EAGAIN, no extra care is needed to probe tracepoints event. This commit adds code refactoring for the error path. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: fix different data block counter between probed event ↵Takashi Sakamoto2019-07-081-3/+3
| | | | | | | | | | | | | and transferred isochronous packet For IT context, tracepoints event is probed after calculating next data block counter. This brings difference of data block counter between the probed event and actual isochronous packet. This commit fixes it. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: fix initial value of data block count for IR context ↵Takashi Sakamoto2019-07-081-2/+4
| | | | | | | | | | | | | | | | | | | | without CIP_DBC_IS_END_EVENT For IR context, ALSA IEC 61883-1/6 engine uses initial value of data block counter as UINT_MAX, to detect first isochronous packet in the middle of packet streaming. At present, when CIP_DBC_IS_END_EVENT is not used (i.e. for drivers except for ALSA fireworks driver), the initial value is used as is for tracepoints event. However, the engine can detect the value of dbc field in the payload of first isochronous packet and the value should be assigned to the event. This commit fixes the bug. Fixes: 76864868dbab ("ALSA: firewire-lib: cache next data_block_counter after probing tracepoints event for IR context") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib/fireface: fix initial value of data block counter for IR ↵Takashi Sakamoto2019-07-081-1/+5
| | | | | | | | | | | | | | | | | | | context with CIP_NO_HEADER For IR context, ALSA IEC 61883-1/6 engine uses initial value of data block counter as UINT_MAX, to detect first isochronous packet in the middle of packet streaming. At present, when CIP_NO_HEADER is used (i.e. for ALSA fireface driver), the initial value is used for tracepoints event. 0x00 should be for the event when the initial value is UINT_MAX because isochronous packets with CIP_NO_HEADER option has no field for data block count. This commit fixes the bug. Fixes: 76864868dbab ("ALSA: firewire-lib: cache next data_block_counter after probing tracepoints event for IR context") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib: fix invalid length of rx packet payload for tracepoint ↵Takashi Sakamoto2019-07-081-5/+7
| | | | | | | | | | | | | | | events Although CIP header is handled as context header, the length of isochronous packet includes two quadlets for its payload. In tracepoints event the value of payload_quadlets should includes the two quadlets. But at present it doesn't. This commit fixes the bug. Fixes: b18f0cfaf16b ("ALSA: firewire-lib: use 8 byte packet header for IT context to separate CIP header from CIP payload") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Merge tag 'asoc-v5.3' of ↵Takashi Iwai2019-07-081-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Updates for v5.3 This is a very big update, mainly thanks to Morimoto-san's refactoring work and some fairly large new drivers. - Lots more work on moving towards a component based framework from Morimoto-san. - Support for force disconnecting muxes from Jerome Brunet. - New drivers for Cirrus Logic CS47L35, CS47L85 and CS47L90, Conexant CX2072X, Realtek RT1011 and RT1308. Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 345Thomas Gleixner2019-06-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): licensed under the terms of the gnu general public license version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 88 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000437.521539229@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | ALSA: firewire-lib: fix to process MIDI conformant data channel for AM824 formatTakashi Sakamoto2019-06-281-12/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In IEC 61883-6, 8 MIDI data streams are multiplexed into single MIDI conformant data channel. The index of stream is calculated by modulo 8 of the value of data block counter. Therefore data block processing layer requires valid value of data block counter. In recent changes of ALSA IEC 61883-1/6 engine, the value of data block counter is changed before calling data block processing layer. This brings miss detection of MIDI messages in non-blocking transmission method is used. This commit fixes the bug by changing chached data block counter after calling data block processing layer. Fixes: e335425b6596 ("ALSA: firewire-lib: split helper function to check incoming CIP header") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: firewire-lib: cache next data_block_counter after probing tracepoints ↵Takashi Sakamoto2019-06-281-22/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | event for IR context For debugging purpose, ALSA IEC 61883-1/6 engine has tracepoints event. In current implementation, next data block counter is stored as current data block counter before probing the event for IR isoc context. It's not good to check current packet parameter. This commit changes to assign the next data block counter after probing the event. Besides, Fireworks devices has a quirk to transfer isoc packet with data block counter for the last data block. For this quirk, the assignment is done before calling data block processing layer. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: firewire-lib: refactoring to obsolete IR packet handlerTakashi Sakamoto2019-05-241-37/+39
| | | | | | | | | | | | | | | | | | | | | | | | As a result of heavy refactoring based on IR context header, the packet handler becomes simpler. This commit merges the packet handler into function for IR context callback. The logic to parse IR context header and tracepoints event is split to a function. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: firewire-lib: refactoring to obsolete IT packet handlerTakashi Sakamoto2019-05-241-31/+31
| | | | | | | | | | | | | | | | | | | | | | | | As a result of heavy refactoring based on IT packet header, the packet handler becomes simpler. This commit merges the packet handler into function for IT context callback. The logic to build IT packet header and tracepoints event is split to a function. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: firewire-lib: fix data block counter for incoming packet without CIP ↵Takashi Sakamoto2019-05-241-0/+2
| | | | | | | | | | | | | | | | | | | | | | header The value of data block counter is not calculated for incoming packet without CIP header. This commit fixes the bug. Fixes: 947b437e1263 ("ALSA: firewire-lib: unify packet handler for IR context") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: firewire-lib: use 8 byte packet header for IT context to separate CIP ↵Takashi Sakamoto2019-05-241-28/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | header from CIP payload In Linux firewire subsystem, for IT context, some quadlets of isochronous packet payload can be indicated as a part of packet header to queue to the context. This commit uses the packet header to split CIP headers from CIP payload. As a result, regardless of CIP or non-CIP, context payload includes data blocks only. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: firewire-lib: code refactoring to queueing packetsTakashi Sakamoto2019-05-241-28/+26
| | | | | | | | | | | | | | | | | | This commit is a preparation to queue IT packet with header. To enable packet handler to fill the header, this commit uses kernel stack for data structure of packet parameter in several part of this file. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: firewire-lib: unify packet handler for IT contextTakashi Sakamoto2019-05-241-41/+18
| | | | | | | | | | | | | | | | | | The handlers for packet with CIP and without CIP include common codes. This commit unifies them and remove an member for pointer to callback function from data structure. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: firewire-lib: split helper function to generate CIP headerTakashi Sakamoto2019-05-241-8/+14
| | | | | | | | | | | | | | | | This is minor code refactoring to split a function to generate CIP header. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: firewire-lib: unify packet handler for IR contextTakashi Sakamoto2019-05-231-39/+15
| | | | | | | | | | | | | | | | | | | | Usage of 16 bytes IR context header allows to handle context payload by the same code for with-CIP and without-CIP packets. This commit unifies both handlers of with-CIP and without-CIP packets. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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