- 22 May, 2021 7 commits
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Takashi Sakamoto authored
In later commit, transfer delay is used in both IR and IT contexts. This commit refactors regardless of transfer delay. Signed-off-by:
Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20210522013303.49596-7-o-takashi@sakamocchi.jpSigned-off-by:
Takashi Iwai <tiwai@suse.de>
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Takashi Sakamoto authored
This commit dissolves sequence generator in terms of the number of data blocks per packet. Signed-off-by:
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Takashi Sakamoto authored
This commit dissolves sequence generator in terms of syt offsets for packet. Signed-off-by:
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Takashi Sakamoto authored
This commit refactors the arguments of helper function to generate the descriptors of packet. Signed-off-by:
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Takashi Sakamoto authored
Current implementation pools the sequence in AMDTP domain. This is convenient regarding to memory usage and computation time, however inconvenient for the devices such that several rx streams are expected to transfer timing information independently. This commit refactors to pool the sequence per rx packet stream. Signed-off-by:
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Takashi Sakamoto authored
Many devices are unaware of syt field in rx CIP for playback timing. This commit adds a flag to cancel processing syt field. Actually, syt calculation is required to decide the number of events per rx packet. The flag put 0xffff to CIP header of rx packet. On the other hand, The value of syt field in CIP header of tx packet is unavailable. The sequence of packet descriptor for tx packet includes 0 for the offset of syt field to avoid computation. Signed-off-by:
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Takashi Sakamoto authored
The check of error is just done for the case that CIP header is available. This commit moves auto variable into the branch to process CIP header. Addresses-Coverity: ("Uninitialized scalar variable") Fixes: c09010ee ("ALSA: firewire-lib: handle the case that empty isochronous packet payload for CIP") Suggested-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
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- 21 May, 2021 1 commit
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Takashi Iwai authored
The cur variable indicating the currently selected clock source can be theoretically used as uninitialized after the recent commit 481f17c4 ("ALSA: usb-audio: Handle error for the current selector gracefully"). For addressing it, initialize it before use. Also, one place seems setting 0 to a wrong variable ret, instead of cur; otherwise it makes little sense. Since the initialization is done beforehand, we can get rid of this line, too. Fixes: 481f17c4 ("ALSA: usb-audio: Handle error for the current selector gracefully") Reported-by:
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- 20 May, 2021 8 commits
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Takashi Sakamoto authored
When starting AMDTP domain, tasks in process context yields running CPU till all of isochronous context get callback, with an assumption that it's OK to process content of packet. However several isochronous cycles are skipped to transfer rx packets, or the content of rx packets are dropped, to manage the timing to start processing the packets. This commit changes the timing for tasks in process context to wake up when processing content of packet is actually ready. Signed-off-by:
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Takashi Sakamoto authored
DICE ASICs support several pairs of isochronous packet streaming and expect software to queue packets with the same timing information into the same isochronous cycle. This commit adds structure member to manage the cycle to start processing packet in several IT contexts. The cycle is decided when batch of isochronous cycle is skipped in callback to isochronous context for IRQ target. Signed-off-by:
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Takashi Sakamoto authored
It's several hundred cycles from starting isochronous contexts and the actual cycle to start processing content of packet. It's useless to start the context for IRQ target apart from the other contexts. This commit refactors helper function to start AMDTP domain in the point. Signed-off-by:
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Takashi Sakamoto authored
Current implementation of ALSA IEC 61883-1/6 packet streaming engine allows drivers to decide isochronous cycle to start IR context. This option is mainly used to avoid processing the sequence of packet with some quirks; e.g. discontinuity of counter. However, it's inconvenient to fail to continue packet processing when the target device doesn't start transmission of packet till the decided cycle. This commit changes the behaviour. As an alternative to the start cycle for IR context, the cycle count to drop content of packet in the beginning of IR context. Signed-off-by:
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Takashi Sakamoto authored
DICE ASICs support several pairs of isochronous packet streaming. It's convenient for drivers to process content of the packet in the same cycle timing. This commit adds structure member to manage the cycle to start processing packet in several IR contexts. The cycle is decided in the first callback of the IR contexts. The content of packet is dropped till the cycle. Signed-off-by:
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Takashi Sakamoto authored
This commit refactors regarding to the size of CIP header. Signed-off-by:
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Takashi Sakamoto authored
It's convenient to calculate the size of context payload apart from the size of isochronous packet payload. This commit adds a helper function for it. Signed-off-by:
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Takashi Sakamoto authored
Some macros are added to refactor codes related to CIP header. Signed-off-by:
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- 19 May, 2021 4 commits
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Takashi Iwai authored
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Takashi Iwai authored
Currently we bail out when the device returns an error or an invalid value for the current clock selector value via uac_clock_selector_get_val(). But it's possible that the device is really uninitialized and waits for the setup of the proper route at first. For handling such a case, this patch lets the driver dealing with the error or the invalid error more gracefully, choosing the clock source automatically instead. Link: https://lore.kernel.org/r/20210518152112.8016-3-tiwai@suse.deSigned-off-by:
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Takashi Iwai authored
This patch just does refactoring of the UAC2/3 clock setup code. There should be no functional changes. The major changes are: * Provide union objects for pointing both UAC2 and UAC3 objects * Unify clock source, selector and multiplier helper functions * Unify __uac_clock_find_source() to deal with both UAC2 and UAC3 equally Link: https://lore.kernel.org/r/20210518152112.8016-2-tiwai@suse.deSigned-off-by:
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Colin Ian King authored
The array bounds check on clock_names is currently checking the size of the entire array rather than the number of elements in the array leading to a potential array bounds read error. Fix this by using the ARRAY_SIZE macro instead of sizeof. Addresses-Coverity: ("Out-of-bounds read") Fixes: 08fdced6 ("ALSA: rawmidi: Add framing mode") Signed-off-by:
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- 18 May, 2021 20 commits
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Takashi Sakamoto authored
This commit fulfils sequence descriptors for skipped cycle when it's one cycle. This is preparation for future integration. Signed-off-by:
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Takashi Sakamoto authored
Within devices supported by drivers in ALSA firewire stack, OXFW-based devices and Fireface devices are known to skip isochronous cycle for packet transmission. The former is due to the jumbo payload quirk. The latter is due to vendor protocol in which empty packet is not transferred in blocking mode. Although nothing to do just for handling events of the packet, packet continuity is necessarily for media clock recovery. This commit checks whether any cycle is continue or not. Signed-off-by:
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Takashi Sakamoto authored
The size of CIP payload is now passed to helper function to parse CIP header. Signed-off-by:
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Takashi Sakamoto authored
This commit refactors regarding to function argument for the length of isochronous packet payload. Signed-off-by:
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Takashi Sakamoto authored
Some macros and functions are renamed so that they compute isochronous cycle within maximum count of second in isochronous context of 1394 OHCI. Signed-off-by:
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Takashi Sakamoto authored
A internal structure is used to gather parameters relevant to sequence descriptor. Signed-off-by:
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Takashi Sakamoto authored
Two quadlets are at least included in isochronous packet payload for Common Isochronous Packet (CIP) format in IEC 61883-1. However, it's better to equip ALSA IEC 61883-1/6 packet streaming engine for contrary packet. This commit handles isochronous cycle to process such packet so that the cycle is skipped. Signed-off-by:
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Takashi Sakamoto authored
The number of PCM frame per period is common between PCM substreams handled in AMDTP stream in AMDTP domain. Signed-off-by:
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Takashi Iwai authored
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Takashi Sakamoto authored
Stanton SCS.1m and Apogee Duet FireWire use blocking transmission method unlike the other models. Signed-off-by:
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Takashi Sakamoto authored
A new entry is added to the quirk enumeration for wrong_dbs quirk to obsolete structure member. Signed-off-by:
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Takashi Sakamoto authored
A new macro is added to describe the maximum number of cycles to accept cycle skip by jumbo payload quirk. Signed-off-by:
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Takashi Sakamoto authored
This commit adds enumeration to describe quirks of OXFW ASICs. Signed-off-by:
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Takashi Sakamoto authored
ALSA OXFW supports two types of ASICS; OXFW970 and OXFW971. The former is known to have a quirk we call 'jumbo payload' that some isochronous cycles are skipped to transfer isochronous packets during handling asynchronous transaction. The quirk seems to correspond to firmware initially delivered by Oxford Semiconductor since the quirk is not confirmed for Mackie Onyx Satellite in which the revised firmware is available. The quirk is not confirmed in the latter. This commit adds code comment to describe the quirk. Signed-off-by:
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Takashi Sakamoto authored
Loud Technologies Mackie Onyx Satellite is identified as the model with OXFW970 ASIC. This commit adds explicit entry for the model. Signed-off-by:
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Takashi Sakamoto authored
Loud Technologies Tapco Link.FireWire 4x6 is identified as the model with OXFW970 ASIC. This commit adds explicit entry for the model. Signed-off-by:
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Takashi Sakamoto authored
This commit changes condition statement to call mackie models detection just for the device entry. Additionally, comment is added for Onyx 1640i. Signed-off-by:
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Takashi Sakamoto authored
All of the devices known to be based on OXFW ASICs have the same layout of configuration ROM, in which unit directory includes vendor, model, specifier_id and version immediate values. Especially, the pair of specifier_id and version is fixed to represent AV/C general protocol. This commit refactors device entries to fulfil with these 4 elements. Signed-off-by:
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Takashi Sakamoto authored
It brings some inconvenience in practice to use enumerated type for variable to which bitwise OR with enumerator constant is assigned. This commit replaces declarations of enumerated type with int type. Suggested-by:
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Takashi Sakamoto authored
This reverts commit 0edabdfe. I've explained that optional FireWire card for d.2 is also built-in to d.2 Pro, however it's wrong. The optional card uses DM1000 ASIC and has 'Mackie DJ Mixer' in its model name of configuration ROM. On the other hand, built-in FireWire card for d.2 Pro and d.4 Pro uses OXFW971 ASIC and has 'd.Pro' in its model name according to manuals and user experiences. The former card is not the card for d.2 Pro. They are similar in appearance but different internally. Signed-off-by:
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