lowland.c

  1// SPDX-License-Identifier: GPL-2.0+
  2//
  3// Lowland audio support
  4//
  5// Copyright 2011 Wolfson Microelectronics
  6
  7#include <sound/soc.h>
  8#include <sound/soc-dapm.h>
  9#include <sound/jack.h>
 10#include <linux/module.h>
 11
 12#include "../codecs/wm5100.h"
 13#include "../codecs/wm9081.h"
 14
 15#define MCLK1_RATE (44100 * 512)
 16#define CLKOUT_RATE (44100 * 256)
 17
 18static struct snd_soc_jack lowland_headset;
 19
 20/* Headset jack detection DAPM pins */
 21static struct snd_soc_jack_pin lowland_headset_pins[] = {
 22	{
 23		.pin = "Headphone",
 24		.mask = SND_JACK_HEADPHONE,
 25	},
 26	{
 27		.pin = "Headset Mic",
 28		.mask = SND_JACK_MICROPHONE,
 29	},
 30	{
 31		.pin = "Line Out",
 32		.mask = SND_JACK_LINEOUT,
 33	},
 34};
 35
 36static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd)
 37{
 38	struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
 39	int ret;
 40
 41	ret = snd_soc_component_set_sysclk(component, WM5100_CLK_SYSCLK,
 42				       WM5100_CLKSRC_MCLK1, MCLK1_RATE,
 43				       SND_SOC_CLOCK_IN);
 44	if (ret < 0) {
 45		pr_err("Failed to set SYSCLK clock source: %d\n", ret);
 46		return ret;
 47	}
 48
 49	/* Clock OPCLK, used by the other audio components. */
 50	ret = snd_soc_component_set_sysclk(component, WM5100_CLK_OPCLK, 0,
 51				       CLKOUT_RATE, 0);
 52	if (ret < 0) {
 53		pr_err("Failed to set OPCLK rate: %d\n", ret);
 54		return ret;
 55	}
 56
 57	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset",
 58					 SND_JACK_LINEOUT | SND_JACK_HEADSET |
 59					 SND_JACK_BTN_0,
 60					 &lowland_headset, lowland_headset_pins,
 61					 ARRAY_SIZE(lowland_headset_pins));
 62	if (ret)
 63		return ret;
 64
 65	wm5100_detect(component, &lowland_headset);
 66
 67	return 0;
 68}
 69
 70static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)
 71{
 72	struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
 73	struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(rtd->card);
 74
 75	snd_soc_dapm_disable_pin(dapm, "LINEOUT");
 76
 77	/* At any time the WM9081 is active it will have this clock */
 78	return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0,
 79					CLKOUT_RATE, 0);
 80}
 81
 82static const struct snd_soc_pcm_stream sub_params = {
 83	.formats = SNDRV_PCM_FMTBIT_S32_LE,
 84	.rate_min = 44100,
 85	.rate_max = 44100,
 86	.channels_min = 2,
 87	.channels_max = 2,
 88};
 89
 90SND_SOC_DAILINK_DEFS(cpu,
 91	DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
 92	DAILINK_COMP_ARRAY(COMP_CODEC("wm5100.1-001a", "wm5100-aif1")),
 93	DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
 94
 95SND_SOC_DAILINK_DEFS(baseband,
 96	DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif2")),
 97	DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1")));
 98
 99SND_SOC_DAILINK_DEFS(speaker,
100	DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif3")),
101	DAILINK_COMP_ARRAY(COMP_CODEC("wm9081.1-006c", "wm9081-hifi")));
102
103static struct snd_soc_dai_link lowland_dai[] = {
104	{
105		.name = "CPU",
106		.stream_name = "CPU",
107		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
108				SND_SOC_DAIFMT_CBP_CFP,
109		.init = lowland_wm5100_init,
110		SND_SOC_DAILINK_REG(cpu),
111	},
112	{
113		.name = "Baseband",
114		.stream_name = "Baseband",
115		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
116				SND_SOC_DAIFMT_CBP_CFP,
117		.ignore_suspend = 1,
118		SND_SOC_DAILINK_REG(baseband),
119	},
120	{
121		.name = "Sub Speaker",
122		.stream_name = "Sub Speaker",
123		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
124				SND_SOC_DAIFMT_CBP_CFP,
125		.ignore_suspend = 1,
126		.c2c_params = &sub_params,
127		.num_c2c_params = 1,
128		.init = lowland_wm9081_init,
129		SND_SOC_DAILINK_REG(speaker),
130	},
131};
132
133static struct snd_soc_codec_conf lowland_codec_conf[] = {
134	{
135		.dlc = COMP_CODEC_CONF("wm9081.1-006c"),
136		.name_prefix = "Sub",
137	},
138};
139
140static const struct snd_kcontrol_new controls[] = {
141	SOC_DAPM_PIN_SWITCH("Main Speaker"),
142	SOC_DAPM_PIN_SWITCH("Main DMIC"),
143	SOC_DAPM_PIN_SWITCH("Main AMIC"),
144	SOC_DAPM_PIN_SWITCH("WM1250 Input"),
145	SOC_DAPM_PIN_SWITCH("WM1250 Output"),
146	SOC_DAPM_PIN_SWITCH("Headphone"),
147	SOC_DAPM_PIN_SWITCH("Line Out"),
148};
149
150static const struct snd_soc_dapm_widget widgets[] = {
151	SND_SOC_DAPM_HP("Headphone", NULL),
152	SND_SOC_DAPM_MIC("Headset Mic", NULL),
153	SND_SOC_DAPM_LINE("Line Out", NULL),
154
155	SND_SOC_DAPM_SPK("Main Speaker", NULL),
156
157	SND_SOC_DAPM_MIC("Main AMIC", NULL),
158	SND_SOC_DAPM_MIC("Main DMIC", NULL),
159};
160
161static const struct snd_soc_dapm_route audio_paths[] = {
162	{ "Sub IN1", NULL, "HPOUT2L" },
163	{ "Sub IN2", NULL, "HPOUT2R" },
164
165	{ "Main Speaker", NULL, "Sub SPKN" },
166	{ "Main Speaker", NULL, "Sub SPKP" },
167	{ "Main Speaker", NULL, "SPKDAT1" },
168};
169
170static struct snd_soc_card lowland = {
171	.name = "Lowland",
172	.owner = THIS_MODULE,
173	.dai_link = lowland_dai,
174	.num_links = ARRAY_SIZE(lowland_dai),
175	.codec_conf = lowland_codec_conf,
176	.num_configs = ARRAY_SIZE(lowland_codec_conf),
177
178	.controls = controls,
179	.num_controls = ARRAY_SIZE(controls),
180	.dapm_widgets = widgets,
181	.num_dapm_widgets = ARRAY_SIZE(widgets),
182	.dapm_routes = audio_paths,
183	.num_dapm_routes = ARRAY_SIZE(audio_paths),
184};
185
186static int lowland_probe(struct platform_device *pdev)
187{
188	struct snd_soc_card *card = &lowland;
189	int ret;
190
191	card->dev = &pdev->dev;
192
193	ret = devm_snd_soc_register_card(&pdev->dev, card);
194	if (ret)
195		dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n");
196
197	return ret;
198}
199
200static struct platform_driver lowland_driver = {
201	.driver = {
202		.name = "lowland",
203		.pm = &snd_soc_pm_ops,
204	},
205	.probe = lowland_probe,
206};
207
208module_platform_driver(lowland_driver);
209
210MODULE_DESCRIPTION("Lowland audio support");
211MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
212MODULE_LICENSE("GPL");
213MODULE_ALIAS("platform:lowland");