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,
26 },
27 {
28 .pin = "Headset Mic",
29 .mask = SND_JACK_MICROPHONE,
30 },
31 {
32 .pin = "Line Out",
33 .mask = SND_JACK_LINEOUT,
34 },
35 };
36
37 static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd)
38 {
39 struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
40 int ret;
41
42 ret = snd_soc_component_set_sysclk(component, WM5100_CLK_SYSCLK,
43 WM5100_CLKSRC_MCLK1, MCLK1_RATE,
44 SND_SOC_CLOCK_IN);
45 if (ret < 0) {
46 pr_err("Failed to set SYSCLK clock source: %d\n", ret);
47 return ret;
48 }
49
50 /* Clock OPCLK, used by the other audio components. */
51 ret = snd_soc_component_set_sysclk(component, WM5100_CLK_OPCLK, 0,
52 CLKOUT_RATE, 0);
53 if (ret < 0) {
54 pr_err("Failed to set OPCLK rate: %d\n", ret);
55 return ret;
56 }
57
58 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset",
59 SND_JACK_LINEOUT | SND_JACK_HEADSET |
60 SND_JACK_BTN_0,
61 &lowland_headset, lowland_headset_pins,
62 ARRAY_SIZE(lowland_headset_pins));
63 if (ret)
64 return ret;
65
66 wm5100_detect(component, &lowland_headset);
67
68 return 0;
69 }
70
71 static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)
72 {
73 struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
74
75 snd_soc_dapm_nc_pin(&rtd->card->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
82 static 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
90 SND_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
95 SND_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
99 SND_SOC_DAILINK_DEFS(speaker,
100 DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif3")),
101 DAILINK_COMP_ARRAY(COMP_CODEC("wm9081.1-006c", "wm9081-hifi")));
102
103 static 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_CBM_CFM,
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_CBM_CFM,
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_CBM_CFM,
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
133 static struct snd_soc_codec_conf lowland_codec_conf[] = {
134 {
135 .dlc = COMP_CODEC_CONF("wm9081.1-006c"),
136 .name_prefix = "Sub",
137 },
138 };
139
140 static 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
150 static 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
161 static 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
170 static 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
186 static 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
200 static struct platform_driver lowland_driver = {
201 .driver = {
202 .name = "lowland",
203 .pm = &snd_soc_pm_ops,
204 },
205 .probe = lowland_probe,
206 };
207
208 module_platform_driver(lowland_driver);
209
210 MODULE_DESCRIPTION("Lowland audio support");
211 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
212 MODULE_LICENSE("GPL");
213 MODULE_ALIAS("platform:lowland");
214
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