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_pins(rtd->card, "Headset",
55 SND_JACK_LINEOUT | SND_JACK_HEADSET |
56 SND_JACK_BTN_0,
57 &lowland_headset, lowland_headset_pins,
58 ARRAY_SIZE(lowland_headset_pins));
59 if (ret)
60 return ret;
61
62 wm5100_detect(component, &lowland_headset);
63
64 return 0;
65 }
66
lowland_wm9081_init(struct snd_soc_pcm_runtime * rtd)67 static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd)
68 {
69 struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
70
71 snd_soc_dapm_nc_pin(&rtd->card->dapm, "LINEOUT");
72
73 /* At any time the WM9081 is active it will have this clock */
74 return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0,
75 CLKOUT_RATE, 0);
76 }
77
78 static const struct snd_soc_pcm_stream sub_params = {
79 .formats = SNDRV_PCM_FMTBIT_S32_LE,
80 .rate_min = 44100,
81 .rate_max = 44100,
82 .channels_min = 2,
83 .channels_max = 2,
84 };
85
86 SND_SOC_DAILINK_DEFS(cpu,
87 DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
88 DAILINK_COMP_ARRAY(COMP_CODEC("wm5100.1-001a", "wm5100-aif1")),
89 DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
90
91 SND_SOC_DAILINK_DEFS(baseband,
92 DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif2")),
93 DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1")));
94
95 SND_SOC_DAILINK_DEFS(speaker,
96 DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif3")),
97 DAILINK_COMP_ARRAY(COMP_CODEC("wm9081.1-006c", "wm9081-hifi")));
98
99 static struct snd_soc_dai_link lowland_dai[] = {
100 {
101 .name = "CPU",
102 .stream_name = "CPU",
103 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
104 SND_SOC_DAIFMT_CBM_CFM,
105 .init = lowland_wm5100_init,
106 SND_SOC_DAILINK_REG(cpu),
107 },
108 {
109 .name = "Baseband",
110 .stream_name = "Baseband",
111 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
112 SND_SOC_DAIFMT_CBM_CFM,
113 .ignore_suspend = 1,
114 SND_SOC_DAILINK_REG(baseband),
115 },
116 {
117 .name = "Sub Speaker",
118 .stream_name = "Sub Speaker",
119 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
120 SND_SOC_DAIFMT_CBM_CFM,
121 .ignore_suspend = 1,
122 .params = &sub_params,
123 .init = lowland_wm9081_init,
124 SND_SOC_DAILINK_REG(speaker),
125 },
126 };
127
128 static struct snd_soc_codec_conf lowland_codec_conf[] = {
129 {
130 .dlc = COMP_CODEC_CONF("wm9081.1-006c"),
131 .name_prefix = "Sub",
132 },
133 };
134
135 static const struct snd_kcontrol_new controls[] = {
136 SOC_DAPM_PIN_SWITCH("Main Speaker"),
137 SOC_DAPM_PIN_SWITCH("Main DMIC"),
138 SOC_DAPM_PIN_SWITCH("Main AMIC"),
139 SOC_DAPM_PIN_SWITCH("WM1250 Input"),
140 SOC_DAPM_PIN_SWITCH("WM1250 Output"),
141 SOC_DAPM_PIN_SWITCH("Headphone"),
142 };
143
144 static const struct snd_soc_dapm_widget widgets[] = {
145 SND_SOC_DAPM_HP("Headphone", NULL),
146 SND_SOC_DAPM_MIC("Headset Mic", NULL),
147
148 SND_SOC_DAPM_SPK("Main Speaker", NULL),
149
150 SND_SOC_DAPM_MIC("Main AMIC", NULL),
151 SND_SOC_DAPM_MIC("Main DMIC", NULL),
152 };
153
154 static const struct snd_soc_dapm_route audio_paths[] = {
155 { "Sub IN1", NULL, "HPOUT2L" },
156 { "Sub IN2", NULL, "HPOUT2R" },
157
158 { "Main Speaker", NULL, "Sub SPKN" },
159 { "Main Speaker", NULL, "Sub SPKP" },
160 { "Main Speaker", NULL, "SPKDAT1" },
161 };
162
163 static struct snd_soc_card lowland = {
164 .name = "Lowland",
165 .owner = THIS_MODULE,
166 .dai_link = lowland_dai,
167 .num_links = ARRAY_SIZE(lowland_dai),
168 .codec_conf = lowland_codec_conf,
169 .num_configs = ARRAY_SIZE(lowland_codec_conf),
170
171 .controls = controls,
172 .num_controls = ARRAY_SIZE(controls),
173 .dapm_widgets = widgets,
174 .num_dapm_widgets = ARRAY_SIZE(widgets),
175 .dapm_routes = audio_paths,
176 .num_dapm_routes = ARRAY_SIZE(audio_paths),
177 };
178
lowland_probe(struct platform_device * pdev)179 static int lowland_probe(struct platform_device *pdev)
180 {
181 struct snd_soc_card *card = &lowland;
182 int ret;
183
184 card->dev = &pdev->dev;
185
186 ret = devm_snd_soc_register_card(&pdev->dev, card);
187 if (ret)
188 dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n");
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