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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_pcm_runtime *rtd;
27 struct snd_soc_dai *codec_dai;
28 int ret;
29
30 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
31 codec_dai = rtd->codec_dai;
32
33 if (dapm->dev != codec_dai->dev)
34 return 0;
35
36 switch (level) {
37 case SND_SOC_BIAS_PREPARE:
38 if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
39 ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
40 WM8962_FLL_MCLK, 32768,
41 sample_rate * 512);
42 if (ret < 0)
43 pr_err("Failed to start FLL: %d\n", ret);
44
45 ret = snd_soc_dai_set_sysclk(codec_dai,
46 WM8962_SYSCLK_FLL,
47 sample_rate * 512,
48 SND_SOC_CLOCK_IN);
49 if (ret < 0) {
50 pr_err("Failed to set SYSCLK: %d\n", ret);
51 snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
52 0, 0, 0);
53 return ret;
54 }
55 }
56 break;
57
58 default:
59 break;
60 }
61
62 return 0;
63}
64
65static int tobermory_set_bias_level_post(struct snd_soc_card *card,
66 struct snd_soc_dapm_context *dapm,
67 enum snd_soc_bias_level level)
68{
69 struct snd_soc_pcm_runtime *rtd;
70 struct snd_soc_dai *codec_dai;
71 int ret;
72
73 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
74 codec_dai = rtd->codec_dai;
75
76 if (dapm->dev != codec_dai->dev)
77 return 0;
78
79 switch (level) {
80 case SND_SOC_BIAS_STANDBY:
81 ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
82 32768, SND_SOC_CLOCK_IN);
83 if (ret < 0) {
84 pr_err("Failed to switch away from FLL: %d\n", ret);
85 return ret;
86 }
87
88 ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
89 0, 0, 0);
90 if (ret < 0) {
91 pr_err("Failed to stop FLL: %d\n", ret);
92 return ret;
93 }
94 break;
95
96 default:
97 break;
98 }
99
100 dapm->bias_level = level;
101
102 return 0;
103}
104
105static int tobermory_hw_params(struct snd_pcm_substream *substream,
106 struct snd_pcm_hw_params *params)
107{
108 sample_rate = params_rate(params);
109
110 return 0;
111}
112
113static struct snd_soc_ops tobermory_ops = {
114 .hw_params = tobermory_hw_params,
115};
116
117static struct snd_soc_dai_link tobermory_dai[] = {
118 {
119 .name = "CPU",
120 .stream_name = "CPU",
121 .cpu_dai_name = "samsung-i2s.0",
122 .codec_dai_name = "wm8962",
123 .platform_name = "samsung-i2s.0",
124 .codec_name = "wm8962.1-001a",
125 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
126 | SND_SOC_DAIFMT_CBM_CFM,
127 .ops = &tobermory_ops,
128 },
129};
130
131static const struct snd_kcontrol_new controls[] = {
132 SOC_DAPM_PIN_SWITCH("Main Speaker"),
133 SOC_DAPM_PIN_SWITCH("DMIC"),
134};
135
136static struct snd_soc_dapm_widget widgets[] = {
137 SND_SOC_DAPM_HP("Headphone", NULL),
138 SND_SOC_DAPM_MIC("Headset Mic", NULL),
139
140 SND_SOC_DAPM_MIC("DMIC", NULL),
141 SND_SOC_DAPM_MIC("AMIC", NULL),
142
143 SND_SOC_DAPM_SPK("Main Speaker", NULL),
144};
145
146static struct snd_soc_dapm_route audio_paths[] = {
147 { "Headphone", NULL, "HPOUTL" },
148 { "Headphone", NULL, "HPOUTR" },
149
150 { "Main Speaker", NULL, "SPKOUTL" },
151 { "Main Speaker", NULL, "SPKOUTR" },
152
153 { "Headset Mic", NULL, "MICBIAS" },
154 { "IN4L", NULL, "Headset Mic" },
155 { "IN4R", NULL, "Headset Mic" },
156
157 { "AMIC", NULL, "MICBIAS" },
158 { "IN1L", NULL, "AMIC" },
159 { "IN1R", NULL, "AMIC" },
160
161 { "DMIC", NULL, "MICBIAS" },
162 { "DMICDAT", NULL, "DMIC" },
163};
164
165static struct snd_soc_jack tobermory_headset;
166
167
168static struct snd_soc_jack_pin tobermory_headset_pins[] = {
169 {
170 .pin = "Headset Mic",
171 .mask = SND_JACK_MICROPHONE,
172 },
173 {
174 .pin = "Headphone",
175 .mask = SND_JACK_MICROPHONE,
176 },
177};
178
179static int tobermory_late_probe(struct snd_soc_card *card)
180{
181 struct snd_soc_pcm_runtime *rtd;
182 struct snd_soc_component *component;
183 struct snd_soc_dai *codec_dai;
184 int ret;
185
186 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
187 component = rtd->codec_dai->component;
188 codec_dai = rtd->codec_dai;
189
190 ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
191 32768, SND_SOC_CLOCK_IN);
192 if (ret < 0)
193 return ret;
194
195 ret = snd_soc_card_jack_new(card, "Headset", SND_JACK_HEADSET |
196 SND_JACK_BTN_0, &tobermory_headset,
197 tobermory_headset_pins,
198 ARRAY_SIZE(tobermory_headset_pins));
199 if (ret)
200 return ret;
201
202 wm8962_mic_detect(component, &tobermory_headset);
203
204 return 0;
205}
206
207static struct snd_soc_card tobermory = {
208 .name = "Tobermory",
209 .owner = THIS_MODULE,
210 .dai_link = tobermory_dai,
211 .num_links = ARRAY_SIZE(tobermory_dai),
212
213 .set_bias_level = tobermory_set_bias_level,
214 .set_bias_level_post = tobermory_set_bias_level_post,
215
216 .controls = controls,
217 .num_controls = ARRAY_SIZE(controls),
218 .dapm_widgets = widgets,
219 .num_dapm_widgets = ARRAY_SIZE(widgets),
220 .dapm_routes = audio_paths,
221 .num_dapm_routes = ARRAY_SIZE(audio_paths),
222 .fully_routed = true,
223
224 .late_probe = tobermory_late_probe,
225};
226
227static int tobermory_probe(struct platform_device *pdev)
228{
229 struct snd_soc_card *card = &tobermory;
230 int ret;
231
232 card->dev = &pdev->dev;
233
234 ret = devm_snd_soc_register_card(&pdev->dev, card);
235 if (ret)
236 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
237 ret);
238
239 return ret;
240}
241
242static struct platform_driver tobermory_driver = {
243 .driver = {
244 .name = "tobermory",
245 .pm = &snd_soc_pm_ops,
246 },
247 .probe = tobermory_probe,
248};
249
250module_platform_driver(tobermory_driver);
251
252MODULE_DESCRIPTION("Tobermory audio support");
253MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
254MODULE_LICENSE("GPL");
255MODULE_ALIAS("platform:tobermory");
256
