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