Commit Graph

147440 Commits

Author SHA1 Message Date
Oswald Buddenhagen
e68235c8aa ALSA: emu10k1: fix synthesizer pitch for E-MU cards at 44.1 kHz
This is only a very partial fix - the frequency-dependent envelope & LFO
register values aren't adjusted.

But I'm not sure they were even correct at 48 kHz to start with, as most
of them are precalculated by common code which assumes an EMU8K-specific
44.1 kHz word clock, and it seems somewhat unlikely that the hardware's
register interpretation was adjusted to compensate for the different
word clock.

In any case I'm not going to spend time on fixing that, as this code is
unlikely to be actually used by anyone today.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230612191325.1315854-6-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-13 07:42:08 +02:00
Oswald Buddenhagen
19b89d15fa ALSA: emu10k1: fix sample rates for E-MU cards at 44.1 kHz word clock
Now that we know the actual word clock, we can:
- Put the resulting rate into the hardware info
- At 44.1 kHz word clock shift the rate for the pitch calculations,
  which presume a 48 kHz word clock

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230612191325.1315854-5-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-13 07:41:43 +02:00
Oswald Buddenhagen
e73b597e63 ALSA: emu10k1: query rate of external clock sources on E-MU cards
The value isn't used yet; the subsequent commits will do that.

This ignores the existence of rates above 48 kHz, which is fine, as the
hardware will just switch to the fallback clock source when fed with a
rate which is incompatible with the base clock multiplier, which
currently is always x1.

The sample rate display in /proc spdif-in is adjusted to reflect our
understanding of the input rates.

This is tested only with an 0404b card without sync card, so there is a
lot of room for improvement.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>

Link: https://lore.kernel.org/r/20230612191325.1315854-4-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-13 07:41:07 +02:00
Oswald Buddenhagen
60985241bf ALSA: emu10k1: make available E-MU clock sources card-specific
The actually available clock sources depend on the available audio input
ports and dedicated clock input ports.

This includes refactoring the code to be data-driven to remain
manageable.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230612191325.1315854-3-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-13 07:40:51 +02:00
Oswald Buddenhagen
1359886227 ALSA: emu10k1: split off E-MU fallback clock from clock source
So far, we set the fallback as a side effect of setting the source. But
the fallback makes no sense at all when an internal clock is selected.
Defaulting to 48k for S/PDIF & ADAT makes sense, but as that is the
global default and we're not changing it automatically any more, it's
just fine to leave it entirely to the explicit setting.

This changes the name of the pre-existing control to something more
appropriate (regardless of the split), so users will need to adjust
their mixer settings.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230612191325.1315854-2-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-13 07:39:50 +02:00
Takashi Iwai
508b662b69 Merge branch 'topic/midi20' into for-next
As the updated MIDI 2.0 spec has been published freshly, this is a
catch up to add the support for new specs, especially UMP v1.1
features, on Linux kernel.

The new UMP v1.1 introduced the concept of Function Blocks (FB), which
is a kind of superset of USB MIDI 2.0 Group Terminal Blocks (GTB).
The patch set adds the support for FB as the primary information
source while keeping the parse of GTB as fallback.  Also UMP v1.1
supports the groupless messages, the protocol switch, static FBs, and
other new fundamental features, and those are supported as well.

Link: https://www.midi.org/midi-articles/details-about-midi-2-0-midi-ci-profiles-and-property-exchange
Link: https://lore.kernel.org/r/20230612081054.17200-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-13 07:37:59 +02:00
Takashi Iwai
01dfa8e969 ALSA: ump: Add info flag bit for static blocks
UMP v1.1 spec allows to inform whether the function blocks are static
and not dynamically updated.  Add a new flag bit to
snd_ump_endpoint_info to reflect that attribute, too.

The flag is set when a USB MIDI device is still in the old MIDI 2.0
without UMP 1.1 support.  Then the driver falls back to GTBs, and they
are supposed to be static-only.

Link: https://lore.kernel.org/r/20230612081054.17200-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-12 18:22:34 +02:00
Takashi Iwai
6a8b4800ae ALSA: seq: ump: Notify UMP protocol change to sequencer
UMP v1.1 supports the protocol switch via a UMP Stream message.  When
it's received, we need to take care of the midi_version field in the
corresponding sequencer client, too.

This patch introduces a new ops to notify the protocol change to
snd_seq_ump_ops for handling it.

Link: https://lore.kernel.org/r/20230612081054.17200-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-12 18:22:33 +02:00
Takashi Iwai
4a16a3af05 ALSA: seq: ump: Handle FB info update
This patch implements the handling of the dynamic update of FB info.

When the FB info update is received after the initial parsing, it
means the dynamic FB info update.  We compare the result, and if the
actual update is detected, it's notified via a new ops,
notify_fb_change, to the sequencer client, and the corresponding
sequencer ports are updated accordingly.

Link: https://lore.kernel.org/r/20230612081054.17200-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-12 18:22:31 +02:00
Takashi Iwai
5437ac9bad ALSA: seq: ump: Handle groupless messages
The UMP Utility and Stream messages are "groupless", i.e. an incoming
groupless packet should be sent only to the UMP EP port, and the event
with the groupless message is sent to UMP EP as is without the group
translation per port.

Also, the former reserved bit 0 for the client group filter is now
used for groupless events.  When the bit 0 is set, the groupless
events are filtered out and skipped.

Link: https://lore.kernel.org/r/20230612081054.17200-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-12 18:22:29 +02:00
Takashi Iwai
37e0e14128 ALSA: ump: Support UMP Endpoint and Function Block parsing
This patch adds the basic support for UMP Endpoint and UMP Function
Block parsing, which are extended in the new UMP v1.1 spec.
The patch provides a new helper function to perform the query of the
UMP Endpoint information and builds up the UMP blocks based on UMP
Function Block information.  For the communication over the UMP
Endpoint, it opens the rawmidi device once internally, inquiries the
UMP Endpoint and Function Block info by sending new UMP Stream
messages, and waits for the response for each query.

The new UMP spec allows to update the FB info and change its
associated groups or its activeness on the fly, too.  For catching it,
the UMP core keeps watching the incoming UMP messages, and
snd_ump_receive() handles the incoming UMP Stream messages to refresh
the FB info.

Link: https://lore.kernel.org/r/20230612081054.17200-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-12 18:22:26 +02:00
Takashi Iwai
e375b8a045 ALSA: ump: Add more attributes to UMP EP and FB info
Add a few more fields to snd_ump_endpoint_info and snd_ump_block_info
that are added in the new v1.1 spec.  Those are filled by the UMP Stream
messages.

The rawmidi protocol version is bumped to 2.0.4 to indicate those
updates.

Also, update the proc outputs to show the newly introduced fields.

Link: https://lore.kernel.org/r/20230612081054.17200-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-12 18:22:25 +02:00
Yanteng Si
942ccdd834 ALSA: hda: Workaround for SDnCTL register on loongson
On loongson controller, after calling snd_hdac_stream_updateb()
to enable DMA engine, the SDnCTL.STRM will become to zero.  We
need to access SDnCTL in dword to keep SDnCTL.STRM is not changed.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Yingkun Meng <mengyingkun@loongson.cn>
Acked-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/r/27aeddf5ebbe7c69631cec0e489c1b264be94990.1686128807.git.siyanteng@loongson.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-07 12:41:21 +02:00
Yanteng Si
cbc3e98acf ALSA: hda: Using polling mode for loongson controller by default
On loongson controller, RIRBSTS.RINTFL cannot be cleared,
azx_interrupt() is called all the time. We disable RIRB
interrupt, and use polling mode by default.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Yingkun Meng <mengyingkun@loongson.cn>
Acked-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/r/d309a75424d438b958d90d797b4f1ba45468e090.1686128807.git.siyanteng@loongson.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-07 12:37:25 +02:00
Yanteng Si
28bd137a3c ALSA: hda: Add Loongson LS7A HD-Audio support
Add the new PCI ID 0x0014 0x7a07 and the new PCI ID 0x0014 0x7a37
Loongson HDA controller.

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Acked-by: Huacai Chen <chenhuacai@loongson.cn>
Link: https://lore.kernel.org/r/993587483b9509796b29a416f257fcfb4b15c6ea.1686128807.git.siyanteng@loongson.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-07 12:36:38 +02:00
Takashi Iwai
1a76499410 Merge branch 'topic/midi20' into for-next
Pull fixes for a couple of minor issues spotted by bots.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-05 16:50:04 +02:00
Takashi Iwai
4f4e711266 ALSA: usb-audio: Use __le16 for 16bit USB descriptor fields
Use proper notion for 16bit values for fixing the sparse warnings.

Fixes: f8ddb0fb32 ("ALSA: usb-audio: Define USB MIDI 2.0 specs")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202305260528.wcqjXso8-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202305270534.odwHL9F0-lkp@intel.com/
Link: https://lore.kernel.org/r/20230605144758.6677-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-05 16:48:54 +02:00
Oswald Buddenhagen
db987421b5 ALSA: emu10k1: vastly improve usefulness of info in /proc
- Include the FX bus map, without which the already present send routing
  info would require looking up the documentation.
- Include the physical I/O channels as known to the driver
- Make the multi-channel capture map actually name the mapped input
  channels rather than "FXBUS" (Audigy) or even "???" (SbLive)
- The latter two are omitted for E-MU cards, as their physical I/O is
  routed through the FPGA
- While at it, make the "Card" field somewhat more useful

This includes de-duplicating the label tables between emuproc and emufx,
updating/improving the FX bus label table, and making the SB Live! 5.1
multi-track capture channel mapping hack data-driven.

Tested-by: Jonathan Dowland <jon@dow.land>
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230526101659.437969-7-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-05 09:26:45 +02:00
Oswald Buddenhagen
6ab13291ba ALSA: emu10k1: make E-MU FPGA register dump in /proc more useful
Include the routing information, which can be actually read back.

Somewhat as a drive-by, make the register dump format less obscure - the
previous one made no sense at all.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230526101659.437969-6-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-06-05 09:26:26 +02:00
Oswald Buddenhagen
11ee59bdac ALSA: emu10k1: add synchronized start of multi-channel playback
We use independent voices for the channels, so we need to make an effort
to ensure that they are actually in sync.

The hardware doesn't provide atomicity, so we may need to retry a few
times, due to NMIs, PCI contention, and the wrong phase of the moon.

Solution inspired by kX-project.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230523200709.236023-3-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-24 12:10:29 +02:00
Takashi Iwai
e7684f3bae Merge branch 'topic/midi20' into for-next
Pull a fixup for build error on big-endian archs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-24 09:10:15 +02:00
Stephen Rothwell
dafb82e7d3 ALSA: ump: Correct snd_ump_midi1_msg_program definition
The #endif is placed obviously at a wrong position, which caused a
build error on the big endian machine.

Fixes: 0b5288f5fe ("ALSA: ump: Add legacy raw MIDI support")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/r/20230524135448.3ecad334@canb.auug.org.au
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-24 09:09:19 +02:00
Takashi Iwai
03a58514d4 Merge branch 'topic/midi20' into for-next
This is a (largish) patch set for adding the support of MIDI 2.0
functionality, mainly targeted for USB devices.  MIDI 2.0 is a
complete overhaul of the 40-years old MIDI 1.0.  Unlike MIDI 1.0 byte
stream, MIDI 2.0 uses packets in 32bit words for Universal MIDI Packet
(UMP) protocol.  It supports both MIDI 1.0 commands for compatibility
and the extended MIDI 2.0 commands for higher resolutions and more
functions.

For supporting the UMP, the patch set extends the existing ALSA
rawmidi and sequencer interfaces, and adds the USB MIDI 2.0 support to
the standard USB-audio driver.

The rawmidi for UMP has a different device name (/dev/snd/umpC*D*) and
it reads/writes UMP packet data in 32bit CPU-native endianness.  For
the old MIDI 1.0 applications, the legacy rawmidi interface is
provided, too.

As default, USB-audio driver will take the alternate setting for MIDI
2.0 interface, and the compatibility with MIDI 1.0 is provided via the
rawmidi common layer.  However, user may let the driver falling back
to the old MIDI 1.0 interface by a module option, too.

A UMP-capable rawmidi device can create the corresponding ALSA
sequencer client(s) to support the UMP Endpoint and UMP Group
connections.  As a nature of ALSA sequencer, arbitrary connections
between clients/ports are allowed, and the ALSA sequencer core
performs the automatic conversions for the connections between a new
UMP sequencer client and a legacy MIDI 1.0 sequencer client.  It
allows the existing application to use MIDI 2.0 devices without
changes.

The MIDI-CI, which is another major extension in MIDI 2.0, isn't
covered by this patch set.  It would be implemented rather in
user-space.

Roughly speaking, the first half of this patch set is for extending
the rawmidi and USB-audio, and the second half is for extending the
ALSA sequencer interface.

The patch set is based on 6.4-rc2 kernel, but all patches can be
cleanly applicable on 6.2 and 6.3 kernels, too (while 6.1 and older
kernels would need minor adjustment for uapi header changes).

The updates for alsa-lib and alsa-utils will follow shortly later.

The author thanks members of MIDI Association OS/API Working Group,
especially Andrew Mee, for great helps for the initial design and
debugging / testing the drivers.

Link: https://lore.kernel.org/r/20230523075358.9672-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 14:14:47 +02:00
Takashi Iwai
d2b7060777 ALSA: seq: Add UMP group filter
Add a new filter bitmap for UMP groups for reducing the unnecessary
read/write when the client is connected to UMP EP seq port.

The new group_filter field contains the bitmap for the groups, i.e.
when the bit is set, the corresponding group is filtered out and
the messages to that group won't be delivered.

The filter bitmap consists of each bit of 1-based UMP Group number.
The bit 0 is reserved for the future use.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-37-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:38 +02:00
Takashi Iwai
d2d247e35e ALSA: seq: Add ioctls for client UMP info query and setup
Add new ioctls for sequencer clients to query and set the UMP endpoint
and block information.

As a sequencer client corresponds to a UMP Endpoint, one UMP Endpoint
information can be assigned at most to a single sequencer client while
multiple UMP block infos can be assigned by passing the type with the
offset of block id (i.e. type = block_id + 1).

For the kernel client, only SNDRV_SEQ_IOCTL_GET_CLIENT_UMP_INFO is
allowed.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-35-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:36 +02:00
Takashi Iwai
81fd444aa3 ALSA: seq: Bind UMP device
This patch introduces a new ALSA sequencer client for the kernel UMP
object, snd-seq-ump-client.  It's a UMP version of snd-seq-midi
driver, while this driver creates a sequencer client per UMP endpoint
which contains (fixed) 16 ports.

The UMP rawmidi device is opened in APPEND mode for output, so that
multiple sequencer clients can share the same UMP endpoint, as well as
the legacy UMP rawmidi devices that are opened in APPEND mode, too.
For input, on the other hand, the incoming data is processed on the
fly in the dedicated hook, hence it doesn't open a rawmidi device.

The UMP packet group is updated upon delivery depending on the target
sequencer port (which corresponds to the actual UMP group).

Each sequencer port sets a new port type bit,
SNDRV_SEQ_PORT_TYPE_MIDI_UMP, in addition to the other standard
types for MIDI.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-33-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:33 +02:00
Takashi Iwai
329ffe11a0 ALSA: seq: Allow suppressing UMP conversions
A sequencer client like seq_dummy rather doesn't want to convert UMP
events but receives / sends as is.  Add a new event filter flag to
suppress the automatic UMP conversion and applies accordingly.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-32-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:32 +02:00
Takashi Iwai
a3ca3b3080 ALSA: seq: Add UMP group number to snd_seq_port_info
Add yet more new filed "ump_group" to snd_seq_port_info for specifying
the associated UMP Group number for each sequencer port.  This will be
referred in the upcoming automatic UMP conversion in sequencer core.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-30-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:27 +02:00
Takashi Iwai
ff166a9d19 ALSA: seq: Add port direction to snd_seq_port_info
Add a new field "direction" to snd_seq_port_info for allowing a client
to tell the expected direction of the port access.  A port might still
allow subscriptions for read/write (e.g. for MIDI-CI) even if the
primary usage of the port is a single direction (either input or
output only).  This new "direction" field can help to indicate such
cases.

When the direction is unspecified at creating a port and the port has
either read or write capability, the corresponding direction bits are
set automatically as default.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-29-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:25 +02:00
Takashi Iwai
177ccf811d ALSA: seq: Support MIDI 2.0 UMP Endpoint port
This is an extension to ALSA sequencer infrastructure to support the
MIDI 2.0 UMP Endpoint port.  It's a "catch-all" port that is supposed
to be present for each UMP Endpoint.  When this port is read via
subscription, it sends any events from all ports (UMP Groups) found in
the same client.

A UMP Endpoint port can be created with the new capability bit
SNDRV_SEQ_PORT_CAP_UMP_ENDPOINT.  Although the port assignment isn't
strictly defined, it should be the port number 0.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-28-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:24 +02:00
Takashi Iwai
74661932ac ALSA: seq: Add port inactive flag
This extends the ALSA sequencer port capability bit to indicate the
"inactive" flag.  When this flag is set, the port is essentially
invisible, and doesn't appear in the port query ioctls, while the
direct access and the connection to this port are still allowed.  The
active/inactive state can be flipped dynamically, so that it can be
visible at any time later.

This feature is introduced basically for UMP; some UMP Groups in a UMP
Block may be unassigned, hence those are practically invisible.  On
ALSA sequencer, the corresponding sequencer ports will get this new
"inactive" flag to indicate the invisible state.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-27-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:23 +02:00
Takashi Iwai
46397622a3 ALSA: seq: Add UMP support
Starting from this commit, we add the basic support of UMP (Universal
MIDI Packet) events on ALSA sequencer infrastructure.  The biggest
change here is that, for transferring UMP packets that are up to 128
bits, we extend the data payload of ALSA sequencer event record when
the client is declared to support for the new UMP events.

A new event flag bit, SNDRV_SEQ_EVENT_UMP, is defined and it shall be
set for the UMP packet events that have the larger payload of 128
bits, defined as struct snd_seq_ump_event.

For controlling the UMP feature enablement in kernel, a new Kconfig,
CONFIG_SND_SEQ_UMP is introduced.  The extended event for UMP is
available only when this Kconfig item is set.  Similarly, the size of
the internal snd_seq_event_cell also increases (in 4 bytes) when the
Kconfig item is set.  (But the size increase is effective only for
32bit architectures; 64bit archs already have padding there.)
Overall, when CONFIG_SND_SEQ_UMP isn't set, there is no change in the
event and cell, keeping the old sizes.

For applications that want to access the UMP packets, first of all, a
sequencer client has to declare the user-protocol to match with the
latest one via the new SNDRV_SEQ_IOCTL_USER_PVERSION; otherwise it's
treated as if a legacy client without UMP support.

Then the client can switch to the new UMP mode (MIDI 1.0 or MIDI 2.0)
with a new field, midi_version, in snd_seq_client_info.  When switched
to UMP mode (midi_version = 1 or 2), the client can write the UMP
events with SNDRV_SEQ_EVENT_UMP flag.  For reads, the alignment size
is changed from snd_seq_event (28 bytes) to snd_seq_ump_event (32
bytes).  When a UMP sequencer event is delivered to a legacy sequencer
client, it's ignored or handled as an error.

Conceptually, ALSA sequencer client and port correspond to the UMP
Endpoint and Group, respectively; each client may have multiple ports
and each port has the fixed number (16) of channels, total up to 256
channels.

As of this commit, ALSA sequencer core just sends and receives the UMP
events as-is from/to clients.  The automatic conversions between the
legacy events and the new UMP events will be implemented in a later
patch.

Along with this commit, bump the sequencer protocol version to 1.0.3.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-26-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:21 +02:00
Takashi Iwai
afb72505e4 ALSA: seq: Introduce SNDRV_SEQ_IOCTL_USER_PVERSION ioctl
For the future extension of ALSA sequencer ABI, introduce a new ioctl
SNDRV_SEQ_IOCTL_USER_PVERSION.  This is similar like the ioctls used
in PCM and other interfaces, for an application to specify its
supporting ABI version.

The use of this ioctl will be mandatory for the upcoming UMP support.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-25-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:19 +02:00
Takashi Iwai
ea46f79709 ALSA: seq: Add snd_seq_expand_var_event_at() helper
Create a new variant of snd_seq_expand_var_event() for expanding the
data starting from the given byte offset.  It'll be used by the new
UMP sequencer code later.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-19-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:14 +02:00
Takashi Iwai
0b5288f5fe ALSA: ump: Add legacy raw MIDI support
This patch extends the UMP core code to support the legacy MIDI 1.0
rawmidi devices.  When the new kconfig CONFIG_SND_UMP_LEGACY_RAWMIDI
is set, the UMP core allows to attach an additional rawmidi device for
each UMP Endpoint.  The rawmidi device contains 16 substreams where
each substream corresponds to a UMP Group belonging to the EP.  The
device reads/writes the legacy MIDI 1.0 byte streams and translates
from/to UMP packets.

The legacy rawmidi devices are exclusive with the UMP rawmidi devices,
hence both of them can't be opened at the same time unless the UMP
rawmidi is opened in APPEND mode.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-15-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:09 +02:00
Takashi Iwai
6b41e64a5d ALSA: ump: Redirect rawmidi substream access via own helpers
This is a code refactoring for abstracting the rawmidi access to the
UMP's own helpers.  It's a preliminary work for the later code
refactoring of the UMP layer.

Until now, we access to the rawmidi substream directly from the
driver via rawmidi access helpers, but after this change, the driver
is supposed to access via the newly introduced snd_ump_ops and
receive/transmit via snd_ump_receive() and snd_ump_transmit() helpers.
As of this commit, those are merely wrappers for the rawmidi
substream, and no much function change is seen here.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-14-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:08 +02:00
Takashi Iwai
f8ddb0fb32 ALSA: usb-audio: Define USB MIDI 2.0 specs
Define new structs and constants from USB MIDI 2.0 specification,
to be used in the upcoming MIDI 2.0 support in USB-audio driver.

A new class-specific endpoint descriptor and group terminal block
descriptors are defined.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:11:01 +02:00
Takashi Iwai
fa030f666d ALSA: ump: Additional proc output
UMP devices may have more interesting information than the traditional
rawmidi.  Extend the rawmidi_global_ops to allow the optional proc
info output and show some more bits in the proc file for UMP.

Note that the "Groups" field shows the first and the last UMP Groups,
and both numbers are 1-based (i.e. the first group is 1).

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:10:59 +02:00
Takashi Iwai
30fc139260 ALSA: ump: Add ioctls to inquiry UMP EP and Block info via control API
It'd be convenient to have ioctls to inquiry the UMP Endpoint and UMP
Block information directly via the control API without opening the
rawmidi interface, just like SNDRV_CTL_IOCTL_RAWMIDI_INFO.

This patch extends the rawmidi ioctl handler to support those; new
ioctls, SNDRV_CTL_IOCTL_UMP_ENDPOINT_INFO and
SNDRV_CTL_IOCTL_UMP_BLOCK_INFO, return the snd_ump_endpoint and
snd_ump_block data that is specified by the device field,
respectively.

Suggested-by: Jaroslav Kysela <perex@perex.cz>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:10:58 +02:00
Takashi Iwai
127ae6f6da ALSA: rawmidi: Skip UMP devices at SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE
Applications may look for rawmidi devices with the ioctl
SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE.  Returning a UMP device from this
ioctl may confuse the existing applications that support only the
legacy rawmidi.

This patch changes the code to skip the UMP devices from the lookup
for avoiding the confusion, and introduces a new ioctl to look for the
UMP devices instead.

Along with this change, bump the CTL protocol version to 2.0.9.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:10:57 +02:00
Takashi Iwai
e3a8a5b726 ALSA: rawmidi: UMP support
This patch adds the support helpers for UMP (Universal MIDI Packet) in
ALSA core.

The basic design is that a rawmidi instance is assigned to each UMP
Endpoint.  A UMP Endpoint provides a UMP stream, typically
bidirectional (but can be also uni-directional, too), which may hold
up to 16 UMP Groups, where each UMP (input/output) Group corresponds
to the traditional MIDI I/O Endpoint.

Additionally, the ALSA UMP abstraction provides the multiple UMP
Blocks that can be assigned to each UMP Endpoint.  A UMP Block is a
metadata to hold the UMP Group clusters, and can represent the
functions assigned to each UMP Group.  A typical implementation of UMP
Block is the Group Terminal Blocks of USB MIDI 2.0 specification.

For distinguishing from the legacy byte-stream MIDI device, a new
device "umpC*D*" will be created, instead of the standard (MIDI 1.0)
devices "midiC*D*".  The UMP instance can be identified by the new
rawmidi info bit SNDRV_RAWMIDI_INFO_UMP, too.

A UMP rawmidi device reads/writes only in 4-bytes words alignment,
stored in CPU native endianness.

The transmit and receive functions take care of the input/out data
alignment, and may return zero or aligned size, and the params ioctl
may return -EINVAL when the given input/output buffer size isn't
aligned.

A few new UMP-specific ioctls are added for obtaining the new UMP
endpoint and block information.

As of this commit, no ALSA sequencer instance is attached to UMP
devices yet.  They will be supported by later patches.

Along with those changes, the protocol version for rawmidi is bumped
to 2.0.3.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:10:54 +02:00
Takashi Iwai
fb3bd12159 ALSA: rawmidi: Add ioctl callback to snd_rawmidi_global_ops
A new callback, ioctl, is added to snd_rawmidi_global_ops for allowing
the driver to deal with the own ioctls.  This is another preparation
patch for the upcoming UMP support.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:10:53 +02:00
Takashi Iwai
09b62892dd ALSA: rawmidi: Pass rawmidi directly to snd_rawmidi_kernel_open()
snd_rawmidi_kernel_open() is used only internally from ALSA sequencer,
so far, and parsing the card / device matching table at each open is
redundant, as each sequencer client already gets the rawmidi object
beforehand.

This patch optimizes the path by passing the rawmidi object directly
at snd_rawmidi_kernel_open().  This is also a preparation for the
upcoming UMP rawmidi I/O support.

Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-23 12:10:52 +02:00
Oswald Buddenhagen
a915d60426 ALSA: emu10k1: revamp playback voice allocator
Instead of separate voices, we now allocate non-interleaved channels,
which may in turn contain two interleaved voices each. The higher-level
code keeps only one pointer per channel. The channels are not allocated
in one block any more, as there is no reason to do that. As a
consequence of that, and because it is cleaner regardless, we now let
the allocator store these pointers at a specified location, rather than
returning only the first one and having the calling code deduce the
remaining ones.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230518140947.3725394-8-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-20 10:16:20 +02:00
Oswald Buddenhagen
b4fea2d3f2 ALSA: emu10k1: make snd_emu10k1_voice_alloc() assign voices' epcm
The voice allocator clearly knows about the field (it resets it), so
it's more consistent (and leads to less duplicated code) to have the
constructor take it as a parameter.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230518140947.3725394-7-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-20 10:16:03 +02:00
Oswald Buddenhagen
82a9fa6e9e ALSA: emu10k1: make freeing untouched playback voices cheap
This allows us to drop the code that tries to preserve already allocated
voices upon repeated hw_param callback invocations. Getting it right for
multi-channel voices would otherwise get a bit hairy.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230518140947.3725394-5-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-18 16:55:56 +02:00
Oswald Buddenhagen
b840f8d8fc ALSA: emu10k1: improve voice status display in /proc
Eliminate the MIDI type, as there is no such thing - the MPU401 port
doesn't have anything to do with voices.

For clarity, differentiate between regular and extra voices.

Don't atomize the enum into bits in the table display.

Simplify/optimize the storage.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230518140947.3725394-4-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-18 16:49:09 +02:00
Oswald Buddenhagen
fccd6f31a4 ALSA: emu10k1: enable bit-exact playback, part 4: send amounts
On Audigy, the send amounts are merely targets, presumably to avoid
sound distortion due to sudden changes, which the EMU8K docu explicitly
warns about.

However, that "soft-start" would prevent bit-for-bit reproduction, so
we now force the current send amounts to their final values at PCM
playback init.

One might want to do that for the MIDI synthesizer as well, though it
seems mostly pointless due to the attack phase each note has anyway.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230518140339.3722279-3-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-18 16:41:59 +02:00
Oswald Buddenhagen
46055699e5 ALSA: emu10k1: introduce and use snd_emu10k1_ptr_write_multiple()
While this nicely denoises the code, the real intent is being able to
write many registers pseudo-atomically, which will come in handy later.

Idea stolen from kX-project.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>

Link: https://lore.kernel.org/r/20230518093134.3697955-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-18 13:08:23 +02:00
Oswald Buddenhagen
5b1cd21f0f ALSA: emu10k1: fix PCM playback cache and interrupt handling
The cache causes a fixed delay regardless of stream parameters.
Consequently, all that "cache invalidate size" calculation stuff was
garbage (which can be traced right back to Creative's OSS driver).

This also removes the definitions of registers CD1..CDF, because they
are accessed only relative to CD0 anyway.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230517174256.3657060-5-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-05-18 07:30:17 +02:00