wireguard-linux/sound/firewire/fireface/ff.c, branch jd/unified-crypt-queue

ALSA: firewire: use KBUILD_MODNAME for struct driver.name instead of string

2020-03-06T14:54:03Z

KBUILD_MODNAME is available to name kernel modules according to its object name. This commit uses the macro instead of string for name field of struct driver since drivers in ALSA firewire stack have the same name of each object name. Signed-off-by: Takashi Sakamoto Link: https://lore.kernel.org/r/20200306135229.11659-1-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 345

2019-06-05T15:37:08Z

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 Reviewed-by: Alexios Zavras Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000437.521539229@linutronix.de Signed-off-by: Greg Kroah-Hartman

ALSA: fireface: support rx MIDI functionality for Fireface UCX

2019-01-22T16:20:56Z

In latter model of Fireface series, asynchronous transaction includes a prefix byte to indicate the way to decode included MIDI bytes. Upper 4 bits of the prefix byte indicates port number, and the rest 4 bits indicate the way to decode rest of bytes for MIDI messages. Basically the rest bits indicates the number of bytes for MIDI message. However, if the last byte of each MIDi message is included, the rest bits are 0xf. For example: message: f0 00 00 66 14 20 00 00 f7 offset: content (big endian, port 0) '0030: 0x02f00000 '0030: 0x03006614 '0030: 0x03200000 '0030: 0x0ff70000 This commit supports encoding scheme for the above and allows applications to transfer MIDI messages via ALSA rawmidi interface. An unused member (running_status) is reused to keep state of transmission of system exclusive messages. For your information, this is a dump of config rom. $ sudo ./hinawa-config-rom-printer /dev/fw1 { 'bus-info': { 'bmc': False, 'chip_ID': 13225063715, 'cmc': False, 'cyc_clk_acc': 0, 'imc': False, 'isc': True, 'max_rec': 512, 'name': '1394', 'node_vendor_ID': 2613}, 'root-directory': [ [ 'NODE_CAPABILITIES', { 'addressing': {'64': True, 'fix': True, 'prv': False}, 'misc': {'int': False, 'ms': False, 'spt': True}, 'state': { 'atn': False, 'ded': False, 'drq': True, 'elo': False, 'init': False, 'lst': True, 'off': False}, 'testing': {'bas': False, 'ext': False}}], ['VENDOR', 2613], ['DESCRIPTOR', 'RME!'], ['EUI_64', 2873037108442403], [ 'UNIT', [ ['SPECIFIER_ID', 2613], ['VERSION', 4], ['MODEL', 1054720], ['DESCRIPTOR', 'Fireface UCX']]]]} Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai

ALSA: fireface: add model-dependent parameter for address to receive async transaction for MIDI messages

2019-01-22T16:20:53Z

Between former and latter models, destination address to receive asynchronous transactions for MIDI messages is different. This commit adds model-dependent parameter for the addresses. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai

ALSA: fireface: support tx MIDI functionality of Fireface UCX

2019-01-22T16:20:51Z

Fireface UCX transfers asynchronous transactions for MIDI messages. One transaction includes quadlet data therefore it can transfer 3 message bytes as maximum. Base address of the destination is configured by two settings; a register for higher 8 byte of the address, and a bitflag to option register indicates lower 8byte. The register for higher address is 0x'ffff'0000'0034. Unfortunately, firmware v24 includes a bug to ignore registered value for the destination address and transfers to 0x0001xxxxxxxx always. This driver doesn't work well if the bug exists, therefore users should install the latest firmware (v27). The bitflag is a part of value to be written to option register (0x'ffff'0000'0014). lower addr: bitflag (little endian) '0000'0000: 0x00002000 '0000'0080: 0x00004000 '0000'0100: 0x00008000 '0000'0180: 0x00010000 This register includes more options but they are not relevant to packet streaming or MIDI functionality. This driver don't touch it. Furthermore, the transaction is sent to address offset incremented by 4 byte to the offset in previous time. When it reaches base address plus 0x7c, next offset is the base address. Content of the transaction includes a prefix byte. Upper 4 bits of the byte indicates port number, and the rest 4 bits indicate the way to decode rest of bytes for MIDI message. Except for system exclusive messages, the rest bits are the same as status bits of the message without channel bits. For system exclusive messages, the rest bits are encoded according to included message bytes. For example: message: f0 7e 7f 09 01 f7 offset: content (little endian, port 0) '0000: 0x04f07e7f '0004: 0x070901f7 message: f0 00 00 66 14 20 00 00 00 f7 offset: content (little endian, port 1) '0014: 0x14f00000 '0018: 0x14661420 '001c: 0x14000000 '0020: 0x15f70000 message: f0 00 00 66 14 20 00 00 f7 offset: content (little endian, port 0) '0078: 0x04f00000 '007c: 0x04661420 '0000: 0x070000f7 This commit supports decoding scheme for the above and allows applications to receive MIDI messages via ALSA rawmidi interface. The lower 8 bytes of destination address is fixed to 0x'0000'0000, thus this driver expects userspace applications to configure option register with bitflag 0x00002000 in advance. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai

ALSA: fireface: add model-dependent parameter for address range to receive async transaction

2019-01-22T16:20:50Z

In Fireface series, drivers can register destination address for asynchronous transaction which transfers MIDI messages from device. In former models, all of the transactions arrive at the registered address without any offset. In latter models, each of the transaction arrives at the registered address with sequential offset within 0x00 to 0x7f. This seems to be for discontinuity detection. This commit adds model-dependent member for the address range. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai

ALSA: fireface: add support for Fireface UCX

2019-01-21T14:12:25Z

Fireface UFX was shipped by RME GmbH in 2012. This model supports later protocol for management of isochronous communication and synchronization of sampling transmission frequency. This commit adds support for the model. At present, it's not clear how to encode MIDI messages and decide destination address for asynchronous transaction, thus this commit adds support for isochronous communication for PCM frames only. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai

ALSA: fireface: code refactoring to handle model-specific registers

2018-12-16T09:18:31Z

As a result of investigation for Fireface 800, 'struct snd_ff_spec.regs' is just for higher address to receive tx asynchronous packets of MIDI messages, thus it can be simplified. This commit simplifies it. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai

ALSA: fireface: add support for packet streaming on Fireface 800

2018-12-16T09:18:29Z

This commit adds a functionality to multiplex PCM frames into isochronous packets and demultiplex PCM frames from isochronous packets for ALSA PCM applications. Fireface 800 voluntarily maintains resources for tx isochronous communication. It performs reservation of isochronous channel and allocation/update of bandwidth in some cases below: - at a first request to allocation after bus resets - at requests to allocation when further bandwidth is required When request is grant and the unit is prepared, read data from 0x0000801c0008 represents isochronous channel for tx stream, then the unit can handle requests to start communication. If driver send the request without checking the register, the unit takes panic to continue bus resets. The unit starts transmission of tx packets after receiving several rx packets from driver. I note that the unit can process tx/rx packets and generate/record sound regardless of HOST LED. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai

ALSA: fireface: add support for Fireface 800 with MIDI functionality only

2018-12-11T13:58:01Z

Fireface 800 is a flagship model of RME GmbH for audio and music units on IEEE 1394 bus, shipped 2004. This model consists of four chips: - TI TSB81BA3D for physical layer on cable environment of EEE 1394 bus - TI TSB82AA2 for link layer for 1394 OHCI bus bridge to PCI bus - Xilinx Spartan-3 FPGA XC3S400 - Xilinx High-Performance CPLD XC9572XL This commit adds support Fireface 800. In this time, the support is restricted to its MIDI functionality, thus this commit adds some condition statements to avoid touching streaming functionality. Unlike Fireface 400, Fireface 800 has no functionality to suppress asynchronous transactions for MIDI messages except for unregister of listen address in controller side, thus the feature is available as is. Signed-off-by: Takashi Sakamoto Signed-off-by: Takashi Iwai