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12#include <sound/soc.h>
13#include <sound/soc-dapm.h>
14#include <sound/jack.h>
15#include <linux/gpio.h>
16#include <linux/module.h>
17
18#include "../codecs/wm8962.h"
19
20static int sample_rate = 44100;
21
22static int tobermory_set_bias_level(struct snd_soc_card *card,
23 struct snd_soc_dapm_context *dapm,
24 enum snd_soc_bias_level level)
25{
26 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
27 int ret;
28
29 if (dapm->dev != codec_dai->dev)
30 return 0;
31
32 switch (level) {
33 case SND_SOC_BIAS_PREPARE:
34 if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
35 ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
36 WM8962_FLL_MCLK, 32768,
37 sample_rate * 512);
38 if (ret < 0)
39 pr_err("Failed to start FLL: %d\n", ret);
40
41 ret = snd_soc_dai_set_sysclk(codec_dai,
42 WM8962_SYSCLK_FLL,
43 sample_rate * 512,
44 SND_SOC_CLOCK_IN);
45 if (ret < 0) {
46 pr_err("Failed to set SYSCLK: %d\n", ret);
47 snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
48 0, 0, 0);
49 return ret;
50 }
51 }
52 break;
53
54 default:
55 break;
56 }
57
58 return 0;
59}
60
61static int tobermory_set_bias_level_post(struct snd_soc_card *card,
62 struct snd_soc_dapm_context *dapm,
63 enum snd_soc_bias_level level)
64{
65 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
66 int ret;
67
68 if (dapm->dev != codec_dai->dev)
69 return 0;
70
71 switch (level) {
72 case SND_SOC_BIAS_STANDBY:
73 ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
74 32768, SND_SOC_CLOCK_IN);
75 if (ret < 0) {
76 pr_err("Failed to switch away from FLL: %d\n", ret);
77 return ret;
78 }
79
80 ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
81 0, 0, 0);
82 if (ret < 0) {
83 pr_err("Failed to stop FLL: %d\n", ret);
84 return ret;
85 }
86 break;
87
88 default:
89 break;
90 }
91
92 dapm->bias_level = level;
93
94 return 0;
95}
96
97static int tobermory_hw_params(struct snd_pcm_substream *substream,
98 struct snd_pcm_hw_params *params)
99{
100 sample_rate = params_rate(params);
101
102 return 0;
103}
104
105static struct snd_soc_ops tobermory_ops = {
106 .hw_params = tobermory_hw_params,
107};
108
109static struct snd_soc_dai_link tobermory_dai[] = {
110 {
111 .name = "CPU",
112 .stream_name = "CPU",
113 .cpu_dai_name = "samsung-i2s.0",
114 .codec_dai_name = "wm8962",
115 .platform_name = "samsung-i2s.0",
116 .codec_name = "wm8962.1-001a",
117 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
118 | SND_SOC_DAIFMT_CBM_CFM,
119 .ops = &tobermory_ops,
120 },
121};
122
123static const struct snd_kcontrol_new controls[] = {
124 SOC_DAPM_PIN_SWITCH("Main Speaker"),
125 SOC_DAPM_PIN_SWITCH("DMIC"),
126};
127
128static struct snd_soc_dapm_widget widgets[] = {
129 SND_SOC_DAPM_HP("Headphone", NULL),
130 SND_SOC_DAPM_MIC("Headset Mic", NULL),
131
132 SND_SOC_DAPM_MIC("DMIC", NULL),
133 SND_SOC_DAPM_MIC("AMIC", NULL),
134
135 SND_SOC_DAPM_SPK("Main Speaker", NULL),
136};
137
138static struct snd_soc_dapm_route audio_paths[] = {
139 { "Headphone", NULL, "HPOUTL" },
140 { "Headphone", NULL, "HPOUTR" },
141
142 { "Main Speaker", NULL, "SPKOUTL" },
143 { "Main Speaker", NULL, "SPKOUTR" },
144
145 { "Headset Mic", NULL, "MICBIAS" },
146 { "IN4L", NULL, "Headset Mic" },
147 { "IN4R", NULL, "Headset Mic" },
148
149 { "AMIC", NULL, "MICBIAS" },
150 { "IN1L", NULL, "AMIC" },
151 { "IN1R", NULL, "AMIC" },
152
153 { "DMIC", NULL, "MICBIAS" },
154 { "DMICDAT", NULL, "DMIC" },
155};
156
157static struct snd_soc_jack tobermory_headset;
158
159
160static struct snd_soc_jack_pin tobermory_headset_pins[] = {
161 {
162 .pin = "Headset Mic",
163 .mask = SND_JACK_MICROPHONE,
164 },
165 {
166 .pin = "Headphone",
167 .mask = SND_JACK_MICROPHONE,
168 },
169};
170
171static int tobermory_late_probe(struct snd_soc_card *card)
172{
173 struct snd_soc_codec *codec = card->rtd[0].codec;
174 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
175 int ret;
176
177 ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
178 32768, SND_SOC_CLOCK_IN);
179 if (ret < 0)
180 return ret;
181
182 ret = snd_soc_card_jack_new(card, "Headset", SND_JACK_HEADSET |
183 SND_JACK_BTN_0, &tobermory_headset,
184 tobermory_headset_pins,
185 ARRAY_SIZE(tobermory_headset_pins));
186 if (ret)
187 return ret;
188
189 wm8962_mic_detect(codec, &tobermory_headset);
190
191 return 0;
192}
193
194static struct snd_soc_card tobermory = {
195 .name = "Tobermory",
196 .owner = THIS_MODULE,
197 .dai_link = tobermory_dai,
198 .num_links = ARRAY_SIZE(tobermory_dai),
199
200 .set_bias_level = tobermory_set_bias_level,
201 .set_bias_level_post = tobermory_set_bias_level_post,
202
203 .controls = controls,
204 .num_controls = ARRAY_SIZE(controls),
205 .dapm_widgets = widgets,
206 .num_dapm_widgets = ARRAY_SIZE(widgets),
207 .dapm_routes = audio_paths,
208 .num_dapm_routes = ARRAY_SIZE(audio_paths),
209 .fully_routed = true,
210
211 .late_probe = tobermory_late_probe,
212};
213
214static int tobermory_probe(struct platform_device *pdev)
215{
216 struct snd_soc_card *card = &tobermory;
217 int ret;
218
219 card->dev = &pdev->dev;
220
221 ret = devm_snd_soc_register_card(&pdev->dev, card);
222 if (ret)
223 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
224 ret);
225
226 return ret;
227}
228
229static struct platform_driver tobermory_driver = {
230 .driver = {
231 .name = "tobermory",
232 .pm = &snd_soc_pm_ops,
233 },
234 .probe = tobermory_probe,
235};
236
237module_platform_driver(tobermory_driver);
238
239MODULE_DESCRIPTION("Tobermory audio support");
240MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
241MODULE_LICENSE("GPL");
242MODULE_ALIAS("platform:tobermory");
243
