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6
7#include <sound/soc.h>
8#include <sound/soc-dapm.h>
9#include <sound/jack.h>
10#include <linux/module.h>
11
12#include "../codecs/wm8962.h"
13
14static int sample_rate = 44100;
15
16static int tobermory_set_bias_level(struct snd_soc_card *card,
17 struct snd_soc_dapm_context *dapm,
18 enum snd_soc_bias_level level)
19{
20 struct snd_soc_pcm_runtime *rtd;
21 struct snd_soc_dai *codec_dai;
22 int ret;
23
24 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
25 codec_dai = snd_soc_rtd_to_codec(rtd, 0);
26
27 if (dapm->dev != codec_dai->dev)
28 return 0;
29
30 switch (level) {
31 case SND_SOC_BIAS_PREPARE:
32 if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
33 ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
34 WM8962_FLL_MCLK, 32768,
35 sample_rate * 512);
36 if (ret < 0)
37 pr_err("Failed to start FLL: %d\n", ret);
38
39 ret = snd_soc_dai_set_sysclk(codec_dai,
40 WM8962_SYSCLK_FLL,
41 sample_rate * 512,
42 SND_SOC_CLOCK_IN);
43 if (ret < 0) {
44 pr_err("Failed to set SYSCLK: %d\n", ret);
45 snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
46 0, 0, 0);
47 return ret;
48 }
49 }
50 break;
51
52 default:
53 break;
54 }
55
56 return 0;
57}
58
59static int tobermory_set_bias_level_post(struct snd_soc_card *card,
60 struct snd_soc_dapm_context *dapm,
61 enum snd_soc_bias_level level)
62{
63 struct snd_soc_pcm_runtime *rtd;
64 struct snd_soc_dai *codec_dai;
65 int ret;
66
67 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
68 codec_dai = snd_soc_rtd_to_codec(rtd, 0);
69
70 if (dapm->dev != codec_dai->dev)
71 return 0;
72
73 switch (level) {
74 case SND_SOC_BIAS_STANDBY:
75 ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
76 32768, SND_SOC_CLOCK_IN);
77 if (ret < 0) {
78 pr_err("Failed to switch away from FLL: %d\n", ret);
79 return ret;
80 }
81
82 ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
83 0, 0, 0);
84 if (ret < 0) {
85 pr_err("Failed to stop FLL: %d\n", ret);
86 return ret;
87 }
88 break;
89
90 default:
91 break;
92 }
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 const struct snd_soc_ops tobermory_ops = {
106 .hw_params = tobermory_hw_params,
107};
108
109SND_SOC_DAILINK_DEFS(cpu,
110 DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")),
111 DAILINK_COMP_ARRAY(COMP_CODEC("wm8962.1-001a", "wm8962")),
112 DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0")));
113
114static struct snd_soc_dai_link tobermory_dai[] = {
115 {
116 .name = "CPU",
117 .stream_name = "CPU",
118 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
119 | SND_SOC_DAIFMT_CBP_CFP,
120 .ops = &tobermory_ops,
121 SND_SOC_DAILINK_REG(cpu),
122 },
123};
124
125static const struct snd_kcontrol_new controls[] = {
126 SOC_DAPM_PIN_SWITCH("Main Speaker"),
127 SOC_DAPM_PIN_SWITCH("DMIC"),
128};
129
130static const struct snd_soc_dapm_widget widgets[] = {
131 SND_SOC_DAPM_HP("Headphone", NULL),
132 SND_SOC_DAPM_MIC("Headset Mic", NULL),
133
134 SND_SOC_DAPM_MIC("DMIC", NULL),
135 SND_SOC_DAPM_MIC("AMIC", NULL),
136
137 SND_SOC_DAPM_SPK("Main Speaker", NULL),
138};
139
140static const struct snd_soc_dapm_route audio_paths[] = {
141 { "Headphone", NULL, "HPOUTL" },
142 { "Headphone", NULL, "HPOUTR" },
143
144 { "Main Speaker", NULL, "SPKOUTL" },
145 { "Main Speaker", NULL, "SPKOUTR" },
146
147 { "Headset Mic", NULL, "MICBIAS" },
148 { "IN4L", NULL, "Headset Mic" },
149 { "IN4R", NULL, "Headset Mic" },
150
151 { "AMIC", NULL, "MICBIAS" },
152 { "IN1L", NULL, "AMIC" },
153 { "IN1R", NULL, "AMIC" },
154
155 { "DMIC", NULL, "MICBIAS" },
156 { "DMICDAT", NULL, "DMIC" },
157};
158
159static struct snd_soc_jack tobermory_headset;
160
161
162static struct snd_soc_jack_pin tobermory_headset_pins[] = {
163 {
164 .pin = "Headset Mic",
165 .mask = SND_JACK_MICROPHONE,
166 },
167 {
168 .pin = "Headphone",
169 .mask = SND_JACK_MICROPHONE,
170 },
171};
172
173static int tobermory_late_probe(struct snd_soc_card *card)
174{
175 struct snd_soc_pcm_runtime *rtd;
176 struct snd_soc_component *component;
177 struct snd_soc_dai *codec_dai;
178 int ret;
179
180 rtd = snd_soc_get_pcm_runtime(card, &card->dai_link[0]);
181 component = snd_soc_rtd_to_codec(rtd, 0)->component;
182 codec_dai = snd_soc_rtd_to_codec(rtd, 0);
183
184 ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
185 32768, SND_SOC_CLOCK_IN);
186 if (ret < 0)
187 return ret;
188
189 ret = snd_soc_card_jack_new_pins(card, "Headset", SND_JACK_HEADSET |
190 SND_JACK_BTN_0, &tobermory_headset,
191 tobermory_headset_pins,
192 ARRAY_SIZE(tobermory_headset_pins));
193 if (ret)
194 return ret;
195
196 wm8962_mic_detect(component, &tobermory_headset);
197
198 return 0;
199}
200
201static struct snd_soc_card tobermory = {
202 .name = "Tobermory",
203 .owner = THIS_MODULE,
204 .dai_link = tobermory_dai,
205 .num_links = ARRAY_SIZE(tobermory_dai),
206
207 .set_bias_level = tobermory_set_bias_level,
208 .set_bias_level_post = tobermory_set_bias_level_post,
209
210 .controls = controls,
211 .num_controls = ARRAY_SIZE(controls),
212 .dapm_widgets = widgets,
213 .num_dapm_widgets = ARRAY_SIZE(widgets),
214 .dapm_routes = audio_paths,
215 .num_dapm_routes = ARRAY_SIZE(audio_paths),
216 .fully_routed = true,
217
218 .late_probe = tobermory_late_probe,
219};
220
221static int tobermory_probe(struct platform_device *pdev)
222{
223 struct snd_soc_card *card = &tobermory;
224 int ret;
225
226 card->dev = &pdev->dev;
227
228 ret = devm_snd_soc_register_card(&pdev->dev, card);
229 if (ret)
230 dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n");
231
232 return ret;
233}
234
235static struct platform_driver tobermory_driver = {
236 .driver = {
237 .name = "tobermory",
238 .pm = &snd_soc_pm_ops,
239 },
240 .probe = tobermory_probe,
241};
242
243module_platform_driver(tobermory_driver);
244
245MODULE_DESCRIPTION("Tobermory audio support");
246MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
247MODULE_LICENSE("GPL");
248MODULE_ALIAS("platform:tobermory");
249
