mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
381 lines
10 KiB
381 lines
10 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* tegra_wm8903.c - Tegra machine ASoC driver for boards using WM8903 codec. |
|
* |
|
* Author: Stephen Warren <[email protected]> |
|
* Copyright (C) 2010-2012 - NVIDIA, Inc. |
|
* |
|
* Based on code copyright/by: |
|
* |
|
* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd. |
|
* |
|
* Copyright 2007 Wolfson Microelectronics PLC. |
|
* Author: Graeme Gregory |
|
* [email protected] or [email protected] |
|
*/ |
|
|
|
#include <linux/module.h> |
|
#include <linux/platform_device.h> |
|
#include <linux/slab.h> |
|
#include <linux/gpio.h> |
|
#include <linux/of_gpio.h> |
|
|
|
#include <sound/core.h> |
|
#include <sound/jack.h> |
|
#include <sound/pcm.h> |
|
#include <sound/pcm_params.h> |
|
#include <sound/soc.h> |
|
|
|
#include "../codecs/wm8903.h" |
|
|
|
#include "tegra_asoc_utils.h" |
|
|
|
#define DRV_NAME "tegra-snd-wm8903" |
|
|
|
struct tegra_wm8903 { |
|
int gpio_spkr_en; |
|
int gpio_hp_det; |
|
int gpio_hp_mute; |
|
int gpio_int_mic_en; |
|
int gpio_ext_mic_en; |
|
struct tegra_asoc_utils_data util_data; |
|
}; |
|
|
|
static int tegra_wm8903_hw_params(struct snd_pcm_substream *substream, |
|
struct snd_pcm_hw_params *params) |
|
{ |
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
|
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
|
struct snd_soc_card *card = rtd->card; |
|
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card); |
|
int srate, mclk; |
|
int err; |
|
|
|
srate = params_rate(params); |
|
switch (srate) { |
|
case 64000: |
|
case 88200: |
|
case 96000: |
|
mclk = 128 * srate; |
|
break; |
|
default: |
|
mclk = 256 * srate; |
|
break; |
|
} |
|
/* FIXME: Codec only requires >= 3MHz if OSR==0 */ |
|
while (mclk < 6000000) |
|
mclk *= 2; |
|
|
|
err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk); |
|
if (err < 0) { |
|
dev_err(card->dev, "Can't configure clocks\n"); |
|
return err; |
|
} |
|
|
|
err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, |
|
SND_SOC_CLOCK_IN); |
|
if (err < 0) { |
|
dev_err(card->dev, "codec_dai clock not set\n"); |
|
return err; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static const struct snd_soc_ops tegra_wm8903_ops = { |
|
.hw_params = tegra_wm8903_hw_params, |
|
}; |
|
|
|
static struct snd_soc_jack tegra_wm8903_hp_jack; |
|
|
|
static struct snd_soc_jack_pin tegra_wm8903_hp_jack_pins[] = { |
|
{ |
|
.pin = "Headphone Jack", |
|
.mask = SND_JACK_HEADPHONE, |
|
}, |
|
}; |
|
|
|
static struct snd_soc_jack_gpio tegra_wm8903_hp_jack_gpio = { |
|
.name = "headphone detect", |
|
.report = SND_JACK_HEADPHONE, |
|
.debounce_time = 150, |
|
.invert = 1, |
|
}; |
|
|
|
static struct snd_soc_jack tegra_wm8903_mic_jack; |
|
|
|
static struct snd_soc_jack_pin tegra_wm8903_mic_jack_pins[] = { |
|
{ |
|
.pin = "Mic Jack", |
|
.mask = SND_JACK_MICROPHONE, |
|
}, |
|
}; |
|
|
|
static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w, |
|
struct snd_kcontrol *k, int event) |
|
{ |
|
struct snd_soc_dapm_context *dapm = w->dapm; |
|
struct snd_soc_card *card = dapm->card; |
|
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card); |
|
|
|
if (!gpio_is_valid(machine->gpio_spkr_en)) |
|
return 0; |
|
|
|
gpio_set_value_cansleep(machine->gpio_spkr_en, |
|
SND_SOC_DAPM_EVENT_ON(event)); |
|
|
|
return 0; |
|
} |
|
|
|
static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w, |
|
struct snd_kcontrol *k, int event) |
|
{ |
|
struct snd_soc_dapm_context *dapm = w->dapm; |
|
struct snd_soc_card *card = dapm->card; |
|
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card); |
|
|
|
if (!gpio_is_valid(machine->gpio_hp_mute)) |
|
return 0; |
|
|
|
gpio_set_value_cansleep(machine->gpio_hp_mute, |
|
!SND_SOC_DAPM_EVENT_ON(event)); |
|
|
|
return 0; |
|
} |
|
|
|
static int tegra_wm8903_event_int_mic(struct snd_soc_dapm_widget *w, |
|
struct snd_kcontrol *k, int event) |
|
{ |
|
struct snd_soc_dapm_context *dapm = w->dapm; |
|
struct snd_soc_card *card = dapm->card; |
|
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card); |
|
|
|
if (!gpio_is_valid(machine->gpio_int_mic_en)) |
|
return 0; |
|
|
|
gpio_set_value_cansleep(machine->gpio_int_mic_en, |
|
SND_SOC_DAPM_EVENT_ON(event)); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct snd_soc_dapm_widget tegra_wm8903_dapm_widgets[] = { |
|
SND_SOC_DAPM_SPK("Int Spk", tegra_wm8903_event_int_spk), |
|
SND_SOC_DAPM_HP("Headphone Jack", tegra_wm8903_event_hp), |
|
SND_SOC_DAPM_MIC("Mic Jack", NULL), |
|
SND_SOC_DAPM_MIC("Int Mic", tegra_wm8903_event_int_mic), |
|
}; |
|
|
|
static const struct snd_kcontrol_new tegra_wm8903_controls[] = { |
|
SOC_DAPM_PIN_SWITCH("Int Spk"), |
|
SOC_DAPM_PIN_SWITCH("Int Mic"), |
|
}; |
|
|
|
static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd) |
|
{ |
|
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
|
struct snd_soc_component *component = codec_dai->component; |
|
struct snd_soc_card *card = rtd->card; |
|
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card); |
|
int shrt = 0; |
|
|
|
if (gpio_is_valid(machine->gpio_hp_det)) { |
|
tegra_wm8903_hp_jack_gpio.gpio = machine->gpio_hp_det; |
|
snd_soc_card_jack_new(rtd->card, "Headphone Jack", |
|
SND_JACK_HEADPHONE, &tegra_wm8903_hp_jack, |
|
tegra_wm8903_hp_jack_pins, |
|
ARRAY_SIZE(tegra_wm8903_hp_jack_pins)); |
|
snd_soc_jack_add_gpios(&tegra_wm8903_hp_jack, |
|
1, |
|
&tegra_wm8903_hp_jack_gpio); |
|
} |
|
|
|
if (of_property_read_bool(card->dev->of_node, "nvidia,headset")) |
|
shrt = SND_JACK_MICROPHONE; |
|
|
|
snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE, |
|
&tegra_wm8903_mic_jack, |
|
tegra_wm8903_mic_jack_pins, |
|
ARRAY_SIZE(tegra_wm8903_mic_jack_pins)); |
|
wm8903_mic_detect(component, &tegra_wm8903_mic_jack, SND_JACK_MICROPHONE, |
|
shrt); |
|
|
|
snd_soc_dapm_force_enable_pin(&card->dapm, "MICBIAS"); |
|
|
|
return 0; |
|
} |
|
|
|
static int tegra_wm8903_remove(struct snd_soc_card *card) |
|
{ |
|
struct snd_soc_pcm_runtime *rtd = |
|
snd_soc_get_pcm_runtime(card, &card->dai_link[0]); |
|
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
|
struct snd_soc_component *component = codec_dai->component; |
|
|
|
wm8903_mic_detect(component, NULL, 0, 0); |
|
|
|
return 0; |
|
} |
|
|
|
SND_SOC_DAILINK_DEFS(hifi, |
|
DAILINK_COMP_ARRAY(COMP_EMPTY()), |
|
DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8903-hifi")), |
|
DAILINK_COMP_ARRAY(COMP_EMPTY())); |
|
|
|
static struct snd_soc_dai_link tegra_wm8903_dai = { |
|
.name = "WM8903", |
|
.stream_name = "WM8903 PCM", |
|
.init = tegra_wm8903_init, |
|
.ops = &tegra_wm8903_ops, |
|
.dai_fmt = SND_SOC_DAIFMT_I2S | |
|
SND_SOC_DAIFMT_NB_NF | |
|
SND_SOC_DAIFMT_CBS_CFS, |
|
SND_SOC_DAILINK_REG(hifi), |
|
}; |
|
|
|
static struct snd_soc_card snd_soc_tegra_wm8903 = { |
|
.name = "tegra-wm8903", |
|
.owner = THIS_MODULE, |
|
.dai_link = &tegra_wm8903_dai, |
|
.num_links = 1, |
|
.remove = tegra_wm8903_remove, |
|
.controls = tegra_wm8903_controls, |
|
.num_controls = ARRAY_SIZE(tegra_wm8903_controls), |
|
.dapm_widgets = tegra_wm8903_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(tegra_wm8903_dapm_widgets), |
|
.fully_routed = true, |
|
}; |
|
|
|
static int tegra_wm8903_driver_probe(struct platform_device *pdev) |
|
{ |
|
struct device_node *np = pdev->dev.of_node; |
|
struct snd_soc_card *card = &snd_soc_tegra_wm8903; |
|
struct tegra_wm8903 *machine; |
|
int ret; |
|
|
|
machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_wm8903), |
|
GFP_KERNEL); |
|
if (!machine) |
|
return -ENOMEM; |
|
|
|
card->dev = &pdev->dev; |
|
snd_soc_card_set_drvdata(card, machine); |
|
|
|
machine->gpio_spkr_en = of_get_named_gpio(np, "nvidia,spkr-en-gpios", |
|
0); |
|
if (machine->gpio_spkr_en == -EPROBE_DEFER) |
|
return -EPROBE_DEFER; |
|
if (gpio_is_valid(machine->gpio_spkr_en)) { |
|
ret = devm_gpio_request_one(&pdev->dev, machine->gpio_spkr_en, |
|
GPIOF_OUT_INIT_LOW, "spkr_en"); |
|
if (ret) { |
|
dev_err(card->dev, "cannot get spkr_en gpio\n"); |
|
return ret; |
|
} |
|
} |
|
|
|
machine->gpio_hp_mute = of_get_named_gpio(np, "nvidia,hp-mute-gpios", |
|
0); |
|
if (machine->gpio_hp_mute == -EPROBE_DEFER) |
|
return -EPROBE_DEFER; |
|
if (gpio_is_valid(machine->gpio_hp_mute)) { |
|
ret = devm_gpio_request_one(&pdev->dev, machine->gpio_hp_mute, |
|
GPIOF_OUT_INIT_HIGH, "hp_mute"); |
|
if (ret) { |
|
dev_err(card->dev, "cannot get hp_mute gpio\n"); |
|
return ret; |
|
} |
|
} |
|
|
|
machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0); |
|
if (machine->gpio_hp_det == -EPROBE_DEFER) |
|
return -EPROBE_DEFER; |
|
|
|
machine->gpio_int_mic_en = of_get_named_gpio(np, |
|
"nvidia,int-mic-en-gpios", 0); |
|
if (machine->gpio_int_mic_en == -EPROBE_DEFER) |
|
return -EPROBE_DEFER; |
|
if (gpio_is_valid(machine->gpio_int_mic_en)) { |
|
/* Disable int mic; enable signal is active-high */ |
|
ret = devm_gpio_request_one(&pdev->dev, |
|
machine->gpio_int_mic_en, |
|
GPIOF_OUT_INIT_LOW, "int_mic_en"); |
|
if (ret) { |
|
dev_err(card->dev, "cannot get int_mic_en gpio\n"); |
|
return ret; |
|
} |
|
} |
|
|
|
machine->gpio_ext_mic_en = of_get_named_gpio(np, |
|
"nvidia,ext-mic-en-gpios", 0); |
|
if (machine->gpio_ext_mic_en == -EPROBE_DEFER) |
|
return -EPROBE_DEFER; |
|
if (gpio_is_valid(machine->gpio_ext_mic_en)) { |
|
/* Enable ext mic; enable signal is active-low */ |
|
ret = devm_gpio_request_one(&pdev->dev, |
|
machine->gpio_ext_mic_en, |
|
GPIOF_OUT_INIT_LOW, "ext_mic_en"); |
|
if (ret) { |
|
dev_err(card->dev, "cannot get ext_mic_en gpio\n"); |
|
return ret; |
|
} |
|
} |
|
|
|
ret = snd_soc_of_parse_card_name(card, "nvidia,model"); |
|
if (ret) |
|
return ret; |
|
|
|
ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing"); |
|
if (ret) |
|
return ret; |
|
|
|
tegra_wm8903_dai.codecs->of_node = of_parse_phandle(np, |
|
"nvidia,audio-codec", 0); |
|
if (!tegra_wm8903_dai.codecs->of_node) { |
|
dev_err(&pdev->dev, |
|
"Property 'nvidia,audio-codec' missing or invalid\n"); |
|
return -EINVAL; |
|
} |
|
|
|
tegra_wm8903_dai.cpus->of_node = of_parse_phandle(np, |
|
"nvidia,i2s-controller", 0); |
|
if (!tegra_wm8903_dai.cpus->of_node) { |
|
dev_err(&pdev->dev, |
|
"Property 'nvidia,i2s-controller' missing or invalid\n"); |
|
return -EINVAL; |
|
} |
|
|
|
tegra_wm8903_dai.platforms->of_node = tegra_wm8903_dai.cpus->of_node; |
|
|
|
ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev); |
|
if (ret) |
|
return ret; |
|
|
|
ret = devm_snd_soc_register_card(&pdev->dev, card); |
|
if (ret) |
|
return dev_err_probe(&pdev->dev, ret, |
|
"snd_soc_register_card failed\n"); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct of_device_id tegra_wm8903_of_match[] = { |
|
{ .compatible = "nvidia,tegra-audio-wm8903", }, |
|
{}, |
|
}; |
|
|
|
static struct platform_driver tegra_wm8903_driver = { |
|
.driver = { |
|
.name = DRV_NAME, |
|
.pm = &snd_soc_pm_ops, |
|
.of_match_table = tegra_wm8903_of_match, |
|
}, |
|
.probe = tegra_wm8903_driver_probe, |
|
}; |
|
module_platform_driver(tegra_wm8903_driver); |
|
|
|
MODULE_AUTHOR("Stephen Warren <[email protected]>"); |
|
MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_ALIAS("platform:" DRV_NAME); |
|
MODULE_DEVICE_TABLE(of, tegra_wm8903_of_match);
|
|
|