Commit Graph

26 Commits

Author SHA1 Message Date
Kuninori Morimoto 3e3b62950a
ASoC: codecs: use asoc_substream_to_rtd()
Now we can use asoc_substream_to_rtd() macro,
let's use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/871rl70yse.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-23 19:07:38 +01:00
Pierre-Louis Bossart 56bbfbfdab
ASoC: codecs: rt*: fix 'defined but not used' warning
Fix W=1 warning when ACPI is not defined

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200707190612.97799-14-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-07-09 21:56:50 +01:00
Wei Yongjun 9558ad2155
ASoC: rt5677: Use devm_snd_soc_register_component()
Using devm_snd_soc_register_component() can make the code
shorter and cleaner.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200507094335.14302-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-07 13:18:03 +01:00
Takashi Iwai 9a560089e9
ASoC: rt5677-spi: Use managed buffer allocation
Clean up the driver with the new managed buffer allocation API.
The superfluous snd_pcm_lib_malloc_pages() and
snd_pcm_lib_free_pages() calls are dropped.

Cc: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20191210142614.19405-20-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-12-11 16:43:29 +00:00
Takashi Iwai 09578eacaa ASoC: More updates for v5.5
Some more development work for v5.5.  Highlights include:
 
  - More cleanups from Morimoto-san.
  - Trigger word detection for RT5677.
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Merge tag 'asoc-v5.5-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: More updates for v5.5

Some more development work for v5.5.  Highlights include:

 - More cleanups from Morimoto-san.
 - Trigger word detection for RT5677.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-11-25 14:27:41 +01:00
Ben Zhang 461c623270
ASoC: rt5677: Load firmware via SPI using delayed work
The firmware rt5677_elf_vad is an ELF binary obtained from
request_firmware(). Sections of the ELF are loaded to
the DSP via SPI. A model (e.g. en_us.mmap) can optionally be
loaded to the DSP at RT5677_MODEL_ADDR to overwrite the
baked-in model in rt5677_elf_vad.

Then we switch to DSP mode, load firmware, and let DSP run.
When a hotword is detected, an interrupt is fired and
rt5677_irq() is called. When 'DSP VAD Switch' is turned off,
the codec is set back to normal mode.

The kcontrol 'DSP VAD Switch' is automatically enabled/disabled
when the hotwording PCM stream is opened/closed.

Signed-off-by: Ben Zhang <benzh@chromium.org>
Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Link: https://lore.kernel.org/r/20191106011335.223061-2-cujomalainey@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-11-11 13:01:59 +00:00
Takashi Iwai f541220cd5 ASoC: rt5677-spi: Convert to the common vmalloc memalloc
The recent change (*) in the ALSA memalloc core allows us to drop the
special vmalloc-specific allocation and page handling.  This patch
coverts to the common code.
(*) 1fe7f397cfe2: ALSA: memalloc: Add vmalloc buffer allocation
                  support
    7e8edae39fd1: ALSA: pcm: Handle special page mapping in the
                  default mmap handler

Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Curtis Malainey <cujomalainey@chromium.org>
Link: https://lore.kernel.org/r/20191108094641.20086-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-11-09 18:02:53 +01:00
Kuninori Morimoto d247568bb2
ASoC: rt5677-spi: fixup compile warning
This patch fixup this warning

LINUX/sound/soc/codecs/rt5677-spi.c: In function ‘rt5677_spi_pcm_close’:
LINUX/sound/soc/codecs/rt5677-spi.c:114:30: warning: unused variable ‘rtd’ [-Wunused-variable]
  struct snd_soc_pcm_runtime *rtd = substream->private_data;
                              ^~~

Fixes: a0e0d13542 ("ASoC: rt5677: Add a PCM device for streaming hotword via SPI")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87a79idajh.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-30 12:55:27 +00:00
Curtis Malainey 6442793abf
ASoC: rt5677-spi: fix sparse warnings
Fix bugs reported by kbuild test robot

Fixes: a0e0d13542 ("ASoC: rt5677: Add a PCM device for streaming hotword via SPI")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Link: https://lore.kernel.org/r/20191024184026.183913-1-cujomalainey@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-25 11:06:08 +01:00
Colin Ian King f8a6043570
ASoC: rt5677: Add missing null check for failed allocation of rt5677_dsp
The allocation of rt5677_dsp can potentially fail and return null, so add
a null check and return -ENOMEM on a memory allocation failure.

Addresses-Coverity: ("Dereference null return")
Fixes: a0e0d13542 ("ASoC: rt5677: Add a PCM device for streaming hotword via SPI")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20191024124610.18182-1-colin.king@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-25 11:05:47 +01:00
Ben Zhang a0e0d13542
ASoC: rt5677: Add a PCM device for streaming hotword via SPI
This patch implements a PCM interface for streaming hotword
phrases over SPI. Userspace can open the PCM device at anytime.
The stream is blocked when no hotword is detected. The mic
audio buffer on the DSP is a ~128KByte ring buffer that holds
~4sec of audio samples recorded from the DMIC (S16_LE, mono,
16KHz). After a hotword is detected, previous 2 seconds of audio
(containing the detected hotword) is streamed first, then live
capture continues until userspace closes the PCM stream.

When transferring, copy one period at a time then call
snd_pcm_period_elapsed(). This reduces the latency of transferring
the initial ~2sec of audio after hotword detect since audio samples
are available for userspace earlier.

Signed-off-by: Ben Zhang <benzh@chromium.org>
Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Link: https://lore.kernel.org/r/20191018200449.141123-2-cujomalainey@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-22 17:55:16 +01:00
Mark Brown 53c8b29abe Linux 5.2-rc6
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Merge tag 'v5.2-rc6' into asoc-5.3

Linux 5.2-rc6
2019-06-26 12:39:34 +01:00
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Mark Brown a41016e403
Merge branch 'for-5.2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.3 2019-05-21 22:00:33 +01:00
Curtis Malainey 7b8164c1a2
ASoC: rt5677-spi: Handle over reading when flipping bytes
There is a case when a we want to read a large number of bytes that
require a burst but is not a multiple of the word size (8). When this
happens rt5677_spi_reverse will run off the end of the buffer. The
solution is to tell spi_reverse the actual size of the destination and
stop if we reach it even if we have data left that we read.

Cc: Ben Zhang <benzh@chromium.org>
Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-20 15:16:56 +01:00
Mark Brown 1c7c3237c0 Linux 5.2-rc1
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Merge tag 'v5.2-rc1' into asoc-5.3

Linux 5.2-rc1
2019-05-20 11:53:50 +01:00
Curtis Malainey b9960f6ea2
ASoC: rt5677-spi: Rename driver to differentiate from main codec
Currently the SPI driver and the main codec share the same name. This
will become confusing when looking up components when using both
drivers.

Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-06 23:57:16 +09:00
Curtis Malainey a46eb52322
ASoC: RT5677-SPI: Disable 16Bit SPI Transfers
The current algorithm allows 3 types of transfers, 16bit, 32bit and
burst. According to Realtek, 16bit transfers have a special restriction
in that it is restricted to the memory region of
0x18020000 ~ 0x18021000. This region is the memory location of the I2C
registers. The current algorithm does not uphold this restriction and
therefore fails to complete writes.

Since this has been broken for some time it likely no one is using it.
Better to simply disable the 16 bit writes. This will allow users to
properly load firmware over SPI without data corruption.

Signed-off-by: Curtis Malainey <cujomalainey@chromium.org>
Reviewed-by: Ben Zhang <benzh@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
2019-05-06 23:43:42 +09:00
Oder Chiou 2b070f6739
ASoC: rt5677-spi: Add ACPI ID
Add the ACPI ID for the product "chromebook pixel 2015" to match the
coreboot settings.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-01 15:04:04 +07:00
Linus Walleij 65ba4dd520
ASoC: rt5677-spi: Drop unused GPIO include
This SPI driver does not use the legacy GPIO header so
just delete it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-18 12:49:33 -07:00
Corentin Labbe df3b573349 ASoC: rt5677: Remove unneeded linux/miscdevice.h include
sound/soc/codecs/rt5677-spi.c does not use any miscdevice so this patch
remove this unnecessary inclusion.

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-12-15 16:27:19 +00:00
Takashi Iwai a40db07fbf ASoC: rt5677: Remove superfluous linux/kthread.h inclusion
It's nowhere used in this driver code.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-16 17:37:49 +00:00
Andrew F. Davis 3821a065f5 spi: Drop owner assignment from spi_drivers
An spi_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-28 10:30:17 +09:00
Ben Zhang 7d4d443eb4 ASoC: rt5677: Allow arbitrary block read/write via SPI
Added rt5677_spi_read() and refactored rt5677_spi_write() so that
an arbitrary block in the DSP address space can be read/written
via SPI. For example, this allows us to load an ELF DSP firmware
with sparse sections, and stream audio samples from DSP ring buffer.

Signed-off-by: Ben Zhang <benzh@chromium.org>
Acked-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-08-25 17:34:30 +01:00
Ben Zhang e29bee098e ASoC: rt5677: fix rt5677 spi driver build
Create a separate module for rt5677 spi driver. Without
this patch, the build fails due to multiple defs of
'init_module' and 'cleanup_module'. module_spi_driver()
defines its own module, so it can't be part of the rt5677
module.

Signed-off-by: Ben Zhang <benzh@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-23 11:06:06 +01:00
Oder Chiou af48f1d08a ASoC: rt5677: Support DSP function for VAD application
The ALC5677 has a programmable DSP, and there is a SPI that is dadicated for DSP
firmware loading. Therefore, the patch includes a SPI driver for writing the DSP
firmware. The VAD(Voice Activaty Detection) has be implemented and use the DSP to
recognize the key phase.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-20 12:22:20 +01:00