Contributors: 15
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Liam Girdwood |
991 |
72.23% |
6 |
18.75% |
| Arnd Bergmann |
89 |
6.49% |
1 |
3.12% |
| Dmitry Eremin-Solenikov |
71 |
5.17% |
1 |
3.12% |
| Axel Lin |
58 |
4.23% |
5 |
15.62% |
| Kuninori Morimoto |
52 |
3.79% |
4 |
12.50% |
| Charles Keepax |
33 |
2.41% |
1 |
3.12% |
| Marek Vašut |
19 |
1.38% |
1 |
3.12% |
| Eric Miao |
16 |
1.17% |
2 |
6.25% |
| Takashi Iwai |
12 |
0.87% |
1 |
3.12% |
| Mark Brown |
11 |
0.80% |
3 |
9.38% |
| Lars-Peter Clausen |
9 |
0.66% |
3 |
9.38% |
| Jarkko Nikula |
5 |
0.36% |
1 |
3.12% |
| Philipp Zabel |
3 |
0.22% |
1 |
3.12% |
| Thomas Gleixner |
2 |
0.15% |
1 |
3.12% |
| Bhumika Goyal |
1 |
0.07% |
1 |
3.12% |
| Total |
1372 |
|
32 |
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
*
* Copyright 2005 Wolfson Microelectronics PLC.
* Copyright 2005 Openedhand Ltd.
*
* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
* Richard Purdie <richard@openedhand.com>
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/gpio/consumer.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <asm/mach-types.h>
#include "../codecs/wm8750.h"
#include "pxa2xx-i2s.h"
#define SPITZ_HP 0
#define SPITZ_MIC 1
#define SPITZ_LINE 2
#define SPITZ_HEADSET 3
#define SPITZ_HP_OFF 4
#define SPITZ_SPK_ON 0
#define SPITZ_SPK_OFF 1
/* audio clock in Hz - rounded from 12.235MHz */
#define SPITZ_AUDIO_CLOCK 12288000
static int spitz_jack_func;
static int spitz_spk_func;
static struct gpio_desc *gpiod_mic, *gpiod_mute_l, *gpiod_mute_r;
static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
{
snd_soc_dapm_mutex_lock(dapm);
if (spitz_spk_func == SPITZ_SPK_ON)
snd_soc_dapm_enable_pin_unlocked(dapm, "Ext Spk");
else
snd_soc_dapm_disable_pin_unlocked(dapm, "Ext Spk");
/* set up jack connection */
switch (spitz_jack_func) {
case SPITZ_HP:
/* enable and unmute hp jack, disable mic bias */
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
gpiod_set_value(gpiod_mute_l, 1);
gpiod_set_value(gpiod_mute_r, 1);
break;
case SPITZ_MIC:
/* enable mic jack and bias, mute hp */
snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
gpiod_set_value(gpiod_mute_l, 0);
gpiod_set_value(gpiod_mute_r, 0);
break;
case SPITZ_LINE:
/* enable line jack, disable mic bias and mute hp */
snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
snd_soc_dapm_enable_pin_unlocked(dapm, "Line Jack");
gpiod_set_value(gpiod_mute_l, 0);
gpiod_set_value(gpiod_mute_r, 0);
break;
case SPITZ_HEADSET:
/* enable and unmute headset jack enable mic bias, mute L hp */
snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
snd_soc_dapm_enable_pin_unlocked(dapm, "Mic Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
gpiod_set_value(gpiod_mute_l, 0);
gpiod_set_value(gpiod_mute_r, 1);
break;
case SPITZ_HP_OFF:
/* jack removed, everything off */
snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Mic Jack");
snd_soc_dapm_disable_pin_unlocked(dapm, "Line Jack");
gpiod_set_value(gpiod_mute_l, 0);
gpiod_set_value(gpiod_mute_r, 0);
break;
}
snd_soc_dapm_sync_unlocked(dapm);
snd_soc_dapm_mutex_unlock(dapm);
}
static int spitz_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
/* check the jack status at stream startup */
spitz_ext_control(&rtd->card->dapm);
return 0;
}
static int spitz_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
unsigned int clk = 0;
int ret = 0;
switch (params_rate(params)) {
case 8000:
case 16000:
case 48000:
case 96000:
clk = 12288000;
break;
case 11025:
case 22050:
case 44100:
clk = 11289600;
break;
}
/* set the codec system clock for DAC and ADC */
ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
/* set the I2S system clock as input (unused) */
ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
return 0;
}
static const struct snd_soc_ops spitz_ops = {
.startup = spitz_startup,
.hw_params = spitz_hw_params,
};
static int spitz_get_jack(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.enumerated.item[0] = spitz_jack_func;
return 0;
}
static int spitz_set_jack(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
if (spitz_jack_func == ucontrol->value.enumerated.item[0])
return 0;
spitz_jack_func = ucontrol->value.enumerated.item[0];
spitz_ext_control(&card->dapm);
return 1;
}
static int spitz_get_spk(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
ucontrol->value.enumerated.item[0] = spitz_spk_func;
return 0;
}
static int spitz_set_spk(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
if (spitz_spk_func == ucontrol->value.enumerated.item[0])
return 0;
spitz_spk_func = ucontrol->value.enumerated.item[0];
spitz_ext_control(&card->dapm);
return 1;
}
static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
gpiod_set_value_cansleep(gpiod_mic, SND_SOC_DAPM_EVENT_ON(event));
return 0;
}
/* spitz machine dapm widgets */
static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
SND_SOC_DAPM_SPK("Ext Spk", NULL),
SND_SOC_DAPM_LINE("Line Jack", NULL),
/* headset is a mic and mono headphone */
SND_SOC_DAPM_HP("Headset Jack", NULL),
};
/* Spitz machine audio_map */
static const struct snd_soc_dapm_route spitz_audio_map[] = {
/* headphone connected to LOUT1, ROUT1 */
{"Headphone Jack", NULL, "LOUT1"},
{"Headphone Jack", NULL, "ROUT1"},
/* headset connected to ROUT1 and LINPUT1 with bias (def below) */
{"Headset Jack", NULL, "ROUT1"},
/* ext speaker connected to LOUT2, ROUT2 */
{"Ext Spk", NULL, "ROUT2"},
{"Ext Spk", NULL, "LOUT2"},
/* mic is connected to input 1 - with bias */
{"LINPUT1", NULL, "Mic Bias"},
{"Mic Bias", NULL, "Mic Jack"},
/* line is connected to input 1 - no bias */
{"LINPUT1", NULL, "Line Jack"},
};
static const char * const jack_function[] = {"Headphone", "Mic", "Line",
"Headset", "Off"};
static const char * const spk_function[] = {"On", "Off"};
static const struct soc_enum spitz_enum[] = {
SOC_ENUM_SINGLE_EXT(5, jack_function),
SOC_ENUM_SINGLE_EXT(2, spk_function),
};
static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
spitz_set_jack),
SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
spitz_set_spk),
};
/* spitz digital audio interface glue - connects codec <--> CPU */
SND_SOC_DAILINK_DEFS(wm8750,
DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-i2s")),
DAILINK_COMP_ARRAY(COMP_CODEC("wm8750.0-001b", "wm8750-hifi")),
DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
static struct snd_soc_dai_link spitz_dai = {
.name = "wm8750",
.stream_name = "WM8750",
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
.ops = &spitz_ops,
SND_SOC_DAILINK_REG(wm8750),
};
/* spitz audio machine driver */
static struct snd_soc_card snd_soc_spitz = {
.name = "Spitz",
.owner = THIS_MODULE,
.dai_link = &spitz_dai,
.num_links = 1,
.controls = wm8750_spitz_controls,
.num_controls = ARRAY_SIZE(wm8750_spitz_controls),
.dapm_widgets = wm8750_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
.dapm_routes = spitz_audio_map,
.num_dapm_routes = ARRAY_SIZE(spitz_audio_map),
.fully_routed = true,
};
static int spitz_probe(struct platform_device *pdev)
{
struct snd_soc_card *card = &snd_soc_spitz;
int ret;
gpiod_mic = devm_gpiod_get(&pdev->dev, "mic", GPIOD_OUT_LOW);
if (IS_ERR(gpiod_mic))
return PTR_ERR(gpiod_mic);
gpiod_mute_l = devm_gpiod_get(&pdev->dev, "mute-l", GPIOD_OUT_LOW);
if (IS_ERR(gpiod_mute_l))
return PTR_ERR(gpiod_mute_l);
gpiod_mute_r = devm_gpiod_get(&pdev->dev, "mute-r", GPIOD_OUT_LOW);
if (IS_ERR(gpiod_mute_r))
return PTR_ERR(gpiod_mute_r);
card->dev = &pdev->dev;
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret)
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
ret);
return ret;
}
static struct platform_driver spitz_driver = {
.driver = {
.name = "spitz-audio",
.pm = &snd_soc_pm_ops,
},
.probe = spitz_probe,
};
module_platform_driver(spitz_driver);
MODULE_AUTHOR("Richard Purdie");
MODULE_DESCRIPTION("ALSA SoC Spitz");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:spitz-audio");