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
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
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
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
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