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e6b5be2be4
linux-next/sound/soc/codecs/wm9705.c
Linus Torvalds e6b5be2be4 Driver core patches for 3.19-rc1 
Here's the set of driver core patches for 3.19-rc1.
 
 They are dominated by the removal of the .owner field in platform
 drivers.  They touch a lot of files, but they are "simple" changes, just
 removing a line in a structure.
 
 Other than that, a few minor driver core and debugfs changes.  There are
 some ath9k patches coming in through this tree that have been acked by
 the wireless maintainers as they relied on the debugfs changes.
 
 Everything has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev_<level>_once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...
2014-12-14 16:10:09 -08:00

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/*
* wm9705.c -- ALSA Soc WM9705 codec support
*
* Copyright 2008 Ian Molton <spyro@f2s.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; Version 2 of the License only.
*
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include "wm9705.h"
/*
* WM9705 register cache
*/
static const u16 wm9705_reg[] = {
0x6150, 0x8000, 0x8000, 0x8000, /* 0x0 */
0x0000, 0x8000, 0x8008, 0x8008, /* 0x8 */
0x8808, 0x8808, 0x8808, 0x8808, /* 0x10 */
0x8808, 0x0000, 0x8000, 0x0000, /* 0x18 */
0x0000, 0x0000, 0x0000, 0x000f, /* 0x20 */
0x0605, 0x0000, 0xbb80, 0x0000, /* 0x28 */
0x0000, 0xbb80, 0x0000, 0x0000, /* 0x30 */
0x0000, 0x2000, 0x0000, 0x0000, /* 0x38 */
0x0000, 0x0000, 0x0000, 0x0000, /* 0x40 */
0x0000, 0x0000, 0x0000, 0x0000, /* 0x48 */
0x0000, 0x0000, 0x0000, 0x0000, /* 0x50 */
0x0000, 0x0000, 0x0000, 0x0000, /* 0x58 */
0x0000, 0x0000, 0x0000, 0x0000, /* 0x60 */
0x0000, 0x0000, 0x0000, 0x0000, /* 0x68 */
0x0000, 0x0808, 0x0000, 0x0006, /* 0x70 */
0x0000, 0x0000, 0x574d, 0x4c05, /* 0x78 */
};
static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = {
SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1),
SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1),
SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1),
SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1),
SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1),
SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0),
SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0),
SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),
};
static const char *wm9705_mic[] = {"Mic 1", "Mic 2"};
static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC",
"Line", "Stereo Mix", "Mono Mix", "Phone"};
static SOC_ENUM_SINGLE_DECL(wm9705_enum_mic,
AC97_GENERAL_PURPOSE, 8, wm9705_mic);
static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_l,
AC97_REC_SEL, 8, wm9705_rec_sel);
static SOC_ENUM_SINGLE_DECL(wm9705_enum_rec_r,
AC97_REC_SEL, 0, wm9705_rec_sel);
/* Headphone Mixer */
static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = {
SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1),
SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1),
SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1),
SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1),
};
/* Mic source */
static const struct snd_kcontrol_new wm9705_mic_src_controls =
SOC_DAPM_ENUM("Route", wm9705_enum_mic);
/* Capture source */
static const struct snd_kcontrol_new wm9705_capture_selectl_controls =
SOC_DAPM_ENUM("Route", wm9705_enum_rec_l);
static const struct snd_kcontrol_new wm9705_capture_selectr_controls =
SOC_DAPM_ENUM("Route", wm9705_enum_rec_r);
/* DAPM widgets */
static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = {
SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0,
&wm9705_mic_src_controls),
SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0,
&wm9705_capture_selectl_controls),
SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0,
&wm9705_capture_selectr_controls),
SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0,
&wm9705_hp_mixer_controls[0],
ARRAY_SIZE(wm9705_hp_mixer_controls)),
SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_OUTPUT("HPOUTL"),
SND_SOC_DAPM_OUTPUT("HPOUTR"),
SND_SOC_DAPM_OUTPUT("LOUT"),
SND_SOC_DAPM_OUTPUT("ROUT"),
SND_SOC_DAPM_OUTPUT("MONOOUT"),
SND_SOC_DAPM_INPUT("PHONE"),
SND_SOC_DAPM_INPUT("LINEINL"),
SND_SOC_DAPM_INPUT("LINEINR"),
SND_SOC_DAPM_INPUT("CDINL"),
SND_SOC_DAPM_INPUT("CDINR"),
SND_SOC_DAPM_INPUT("PCBEEP"),
SND_SOC_DAPM_INPUT("MIC1"),
SND_SOC_DAPM_INPUT("MIC2"),
};
/* Audio map
* WM9705 has no switches to disable the route from the inputs to the HP mixer
* so in order to prevent active inputs from forcing the audio outputs to be
* constantly enabled, we use the mutes on those inputs to simulate such
* controls.
*/
static const struct snd_soc_dapm_route wm9705_audio_map[] = {
/* HP mixer */
{"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"},
{"HP Mixer", "CD Playback Switch", "CD PGA"},
{"HP Mixer", "Mic Playback Switch", "Mic PGA"},
{"HP Mixer", "Phone Playback Switch", "Phone PGA"},
{"HP Mixer", "Line Playback Switch", "Line PGA"},
{"HP Mixer", NULL, "Left DAC"},
{"HP Mixer", NULL, "Right DAC"},
/* mono mixer */
{"Mono Mixer", NULL, "HP Mixer"},
/* outputs */
{"Headphone PGA", NULL, "HP Mixer"},
{"HPOUTL", NULL, "Headphone PGA"},
{"HPOUTR", NULL, "Headphone PGA"},
{"Line out PGA", NULL, "HP Mixer"},
{"LOUT", NULL, "Line out PGA"},
{"ROUT", NULL, "Line out PGA"},
{"Mono PGA", NULL, "Mono Mixer"},
{"MONOOUT", NULL, "Mono PGA"},
/* inputs */
{"CD PGA", NULL, "CDINL"},
{"CD PGA", NULL, "CDINR"},
{"Line PGA", NULL, "LINEINL"},
{"Line PGA", NULL, "LINEINR"},
{"Phone PGA", NULL, "PHONE"},
{"Mic Source", "Mic 1", "MIC1"},
{"Mic Source", "Mic 2", "MIC2"},
{"Mic PGA", NULL, "Mic Source"},
{"PCBEEP PGA", NULL, "PCBEEP"},
/* Left capture selector */
{"Left Capture Source", "Mic", "Mic Source"},
{"Left Capture Source", "CD", "CDINL"},
{"Left Capture Source", "Line", "LINEINL"},
{"Left Capture Source", "Stereo Mix", "HP Mixer"},
{"Left Capture Source", "Mono Mix", "HP Mixer"},
{"Left Capture Source", "Phone", "PHONE"},
/* Right capture source */
{"Right Capture Source", "Mic", "Mic Source"},
{"Right Capture Source", "CD", "CDINR"},
{"Right Capture Source", "Line", "LINEINR"},
{"Right Capture Source", "Stereo Mix", "HP Mixer"},
{"Right Capture Source", "Mono Mix", "HP Mixer"},
{"Right Capture Source", "Phone", "PHONE"},
{"ADC PGA", NULL, "Left Capture Source"},
{"ADC PGA", NULL, "Right Capture Source"},
/* ADC's */
{"Left ADC", NULL, "ADC PGA"},
{"Right ADC", NULL, "ADC PGA"},
};
/* We use a register cache to enhance read performance. */
static unsigned int ac97_read(struct snd_soc_codec *codec, unsigned int reg)
{
struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
u16 *cache = codec->reg_cache;
switch (reg) {
case AC97_RESET:
case AC97_VENDOR_ID1:
case AC97_VENDOR_ID2:
return soc_ac97_ops->read(ac97, reg);
default:
reg = reg >> 1;
if (reg >= (ARRAY_SIZE(wm9705_reg)))
return -EIO;
return cache[reg];
}
}
static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int val)
{
struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
u16 *cache = codec->reg_cache;
soc_ac97_ops->write(ac97, reg, val);
reg = reg >> 1;
if (reg < (ARRAY_SIZE(wm9705_reg)))
cache[reg] = val;
return 0;
}
static int ac97_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
int reg;
u16 vra;
vra = ac97_read(codec, AC97_EXTENDED_STATUS);
ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
reg = AC97_PCM_FRONT_DAC_RATE;
else
reg = AC97_PCM_LR_ADC_RATE;
return ac97_write(codec, reg, substream->runtime->rate);
}
#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000)
static const struct snd_soc_dai_ops wm9705_dai_ops = {
.prepare = ac97_prepare,
};
static struct snd_soc_dai_driver wm9705_dai[] = {
{
.name = "wm9705-hifi",
.playback = {
.stream_name = "HiFi Playback",
.channels_min = 1,
.channels_max = 2,
.rates = WM9705_AC97_RATES,
.formats = SND_SOC_STD_AC97_FMTS,
},
.capture = {
.stream_name = "HiFi Capture",
.channels_min = 1,
.channels_max = 2,
.rates = WM9705_AC97_RATES,
.formats = SND_SOC_STD_AC97_FMTS,
},
.ops = &wm9705_dai_ops,
},
{
.name = "wm9705-aux",
.playback = {
.stream_name = "Aux Playback",
.channels_min = 1,
.channels_max = 1,
.rates = WM9705_AC97_RATES,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
}
};
static int wm9705_reset(struct snd_soc_codec *codec)
{
struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
if (soc_ac97_ops->reset) {
soc_ac97_ops->reset(ac97);
if (ac97_read(codec, 0) == wm9705_reg[0])
return 0; /* Success */
}
dev_err(codec->dev, "Failed to reset: AC97 link error\n");
return -EIO;
}
#ifdef CONFIG_PM
static int wm9705_soc_suspend(struct snd_soc_codec *codec)
{
struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
soc_ac97_ops->write(ac97, AC97_POWERDOWN, 0xffff);
return 0;
}
static int wm9705_soc_resume(struct snd_soc_codec *codec)
{
struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
int i, ret;
u16 *cache = codec->reg_cache;
ret = wm9705_reset(codec);
if (ret < 0)
return ret;
for (i = 2; i < ARRAY_SIZE(wm9705_reg) << 1; i += 2) {
soc_ac97_ops->write(ac97, i, cache[i>>1]);
}
return 0;
}
#else
#define wm9705_soc_suspend NULL
#define wm9705_soc_resume NULL
#endif
static int wm9705_soc_probe(struct snd_soc_codec *codec)
{
struct snd_ac97 *ac97;
int ret = 0;
ac97 = snd_soc_new_ac97_codec(codec);
if (IS_ERR(ac97)) {
ret = PTR_ERR(ac97);
dev_err(codec->dev, "Failed to register AC97 codec\n");
return ret;
}
snd_soc_codec_set_drvdata(codec, ac97);
ret = wm9705_reset(codec);
if (ret)
goto reset_err;
return 0;
reset_err:
snd_soc_free_ac97_codec(ac97);
return ret;
}
static int wm9705_soc_remove(struct snd_soc_codec *codec)
{
struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
snd_soc_free_ac97_codec(ac97);
return 0;
}
static struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
.probe = wm9705_soc_probe,
.remove = wm9705_soc_remove,
.suspend = wm9705_soc_suspend,
.resume = wm9705_soc_resume,
.read = ac97_read,
.write = ac97_write,
.reg_cache_size = ARRAY_SIZE(wm9705_reg),
.reg_word_size = sizeof(u16),
.reg_cache_step = 2,
.reg_cache_default = wm9705_reg,
.controls = wm9705_snd_ac97_controls,
.num_controls = ARRAY_SIZE(wm9705_snd_ac97_controls),
.dapm_widgets = wm9705_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(wm9705_dapm_widgets),
.dapm_routes = wm9705_audio_map,
.num_dapm_routes = ARRAY_SIZE(wm9705_audio_map),
};
static int wm9705_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev,
&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
}
static int wm9705_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
static struct platform_driver wm9705_codec_driver = {
.driver = {
.name = "wm9705-codec",
},
.probe = wm9705_probe,
.remove = wm9705_remove,
};
module_platform_driver(wm9705_codec_driver);
MODULE_DESCRIPTION("ASoC WM9705 driver");
MODULE_AUTHOR("Ian Molton");
MODULE_LICENSE("GPL v2");
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