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16#include <linux/gpio/consumer.h>
17#include <linux/module.h>
18
19#include <sound/soc.h>
20#include <sound/jack.h>
21
22#include "i2s.h"
23#include "../codecs/wm8750.h"
24
25
26
27
28
29static struct snd_soc_card snd_soc_smartq;
30
31static int smartq_hifi_hw_params(struct snd_pcm_substream *substream,
32 struct snd_pcm_hw_params *params)
33{
34 struct snd_soc_pcm_runtime *rtd = substream->private_data;
35 struct snd_soc_dai *codec_dai = rtd->codec_dai;
36 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
37 unsigned int clk = 0;
38 int ret;
39
40 switch (params_rate(params)) {
41 case 8000:
42 case 16000:
43 case 32000:
44 case 48000:
45 case 96000:
46 clk = 12288000;
47 break;
48 case 11025:
49 case 22050:
50 case 44100:
51 case 88200:
52 clk = 11289600;
53 break;
54 }
55
56
57 ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
58 0, SND_SOC_CLOCK_IN);
59 if (ret < 0)
60 return ret;
61
62
63 ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
64 0, SND_SOC_CLOCK_IN);
65 if (ret < 0)
66 return ret;
67
68
69 ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
70 SND_SOC_CLOCK_IN);
71 if (ret < 0)
72 return ret;
73
74 return 0;
75}
76
77
78
79
80static struct snd_soc_ops smartq_hifi_ops = {
81 .hw_params = smartq_hifi_hw_params,
82};
83
84static struct snd_soc_jack smartq_jack;
85
86static struct snd_soc_jack_pin smartq_jack_pins[] = {
87
88 {
89 .pin = "Internal Speaker",
90 .mask = SND_JACK_HEADPHONE,
91 },
92};
93
94static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
95 {
96 .gpio = -1,
97 .name = "headphone detect",
98 .report = SND_JACK_HEADPHONE,
99 .debounce_time = 200,
100 },
101};
102
103static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
104 SOC_DAPM_PIN_SWITCH("Internal Speaker"),
105 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
106 SOC_DAPM_PIN_SWITCH("Internal Mic"),
107};
108
109static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
110 struct snd_kcontrol *k,
111 int event)
112{
113 struct gpio_desc *gpio = snd_soc_card_get_drvdata(&snd_soc_smartq);
114
115 gpiod_set_value(gpio, SND_SOC_DAPM_EVENT_OFF(event));
116
117 return 0;
118}
119
120static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
121 SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
122 SND_SOC_DAPM_HP("Headphone Jack", NULL),
123 SND_SOC_DAPM_MIC("Internal Mic", NULL),
124};
125
126static const struct snd_soc_dapm_route audio_map[] = {
127 {"Headphone Jack", NULL, "LOUT2"},
128 {"Headphone Jack", NULL, "ROUT2"},
129
130 {"Internal Speaker", NULL, "LOUT2"},
131 {"Internal Speaker", NULL, "ROUT2"},
132
133 {"Mic Bias", NULL, "Internal Mic"},
134 {"LINPUT2", NULL, "Mic Bias"},
135};
136
137static int smartq_wm8987_init(struct snd_soc_pcm_runtime *rtd)
138{
139 struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
140 int err = 0;
141
142
143 snd_soc_dapm_nc_pin(dapm, "LINPUT1");
144 snd_soc_dapm_nc_pin(dapm, "RINPUT1");
145 snd_soc_dapm_nc_pin(dapm, "OUT3");
146 snd_soc_dapm_nc_pin(dapm, "ROUT1");
147
148
149 err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
150 SND_JACK_HEADPHONE, &smartq_jack,
151 smartq_jack_pins,
152 ARRAY_SIZE(smartq_jack_pins));
153 if (err)
154 return err;
155
156 err = snd_soc_jack_add_gpios(&smartq_jack,
157 ARRAY_SIZE(smartq_jack_gpios),
158 smartq_jack_gpios);
159
160 return err;
161}
162
163static struct snd_soc_dai_link smartq_dai[] = {
164 {
165 .name = "wm8987",
166 .stream_name = "SmartQ Hi-Fi",
167 .cpu_dai_name = "samsung-i2s.0",
168 .codec_dai_name = "wm8750-hifi",
169 .platform_name = "samsung-i2s.0",
170 .codec_name = "wm8750.0-0x1a",
171 .init = smartq_wm8987_init,
172 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
173 SND_SOC_DAIFMT_CBS_CFS,
174 .ops = &smartq_hifi_ops,
175 },
176};
177
178static struct snd_soc_card snd_soc_smartq = {
179 .name = "SmartQ",
180 .owner = THIS_MODULE,
181 .dai_link = smartq_dai,
182 .num_links = ARRAY_SIZE(smartq_dai),
183
184 .dapm_widgets = wm8987_dapm_widgets,
185 .num_dapm_widgets = ARRAY_SIZE(wm8987_dapm_widgets),
186 .dapm_routes = audio_map,
187 .num_dapm_routes = ARRAY_SIZE(audio_map),
188 .controls = wm8987_smartq_controls,
189 .num_controls = ARRAY_SIZE(wm8987_smartq_controls),
190};
191
192static int smartq_probe(struct platform_device *pdev)
193{
194 struct gpio_desc *gpio;
195 int ret;
196
197 platform_set_drvdata(pdev, &snd_soc_smartq);
198
199
200 gpio = devm_gpiod_get(&pdev->dev, "amplifiers shutdown",
201 GPIOD_OUT_HIGH);
202 if (IS_ERR(gpio)) {
203 dev_err(&pdev->dev, "Failed to register GPK12\n");
204 ret = PTR_ERR(gpio);
205 goto out;
206 }
207 snd_soc_card_set_drvdata(&snd_soc_smartq, gpio);
208
209 ret = devm_snd_soc_register_card(&pdev->dev, &snd_soc_smartq);
210 if (ret)
211 dev_err(&pdev->dev, "Failed to register card\n");
212
213out:
214 return ret;
215}
216
217static struct platform_driver smartq_driver = {
218 .driver = {
219 .name = "smartq-audio",
220 },
221 .probe = smartq_probe,
222};
223
224module_platform_driver(smartq_driver);
225
226
227MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
228MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
229MODULE_LICENSE("GPL");
230
