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9#include <linux/gpio/consumer.h>
10#include <linux/module.h>
11
12#include <sound/soc.h>
13#include <sound/jack.h>
14
15#include "i2s.h"
16#include "../codecs/wm8750.h"
17
18
19
20
21
22static struct snd_soc_card snd_soc_smartq;
23
24static int smartq_hifi_hw_params(struct snd_pcm_substream *substream,
25 struct snd_pcm_hw_params *params)
26{
27 struct snd_soc_pcm_runtime *rtd = substream->private_data;
28 struct snd_soc_dai *codec_dai = rtd->codec_dai;
29 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
30 unsigned int clk = 0;
31 int ret;
32
33 switch (params_rate(params)) {
34 case 8000:
35 case 16000:
36 case 32000:
37 case 48000:
38 case 96000:
39 clk = 12288000;
40 break;
41 case 11025:
42 case 22050:
43 case 44100:
44 case 88200:
45 clk = 11289600;
46 break;
47 }
48
49
50 ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
51 0, SND_SOC_CLOCK_IN);
52 if (ret < 0)
53 return ret;
54
55
56 ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
57 0, SND_SOC_CLOCK_IN);
58 if (ret < 0)
59 return ret;
60
61
62 ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
63 SND_SOC_CLOCK_IN);
64 if (ret < 0)
65 return ret;
66
67 return 0;
68}
69
70
71
72
73static struct snd_soc_ops smartq_hifi_ops = {
74 .hw_params = smartq_hifi_hw_params,
75};
76
77static struct snd_soc_jack smartq_jack;
78
79static struct snd_soc_jack_pin smartq_jack_pins[] = {
80
81 {
82 .pin = "Internal Speaker",
83 .mask = SND_JACK_HEADPHONE,
84 },
85};
86
87static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
88 {
89 .gpio = -1,
90 .name = "headphone detect",
91 .report = SND_JACK_HEADPHONE,
92 .debounce_time = 200,
93 },
94};
95
96static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
97 SOC_DAPM_PIN_SWITCH("Internal Speaker"),
98 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
99 SOC_DAPM_PIN_SWITCH("Internal Mic"),
100};
101
102static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
103 struct snd_kcontrol *k,
104 int event)
105{
106 struct gpio_desc *gpio = snd_soc_card_get_drvdata(&snd_soc_smartq);
107
108 gpiod_set_value(gpio, SND_SOC_DAPM_EVENT_OFF(event));
109
110 return 0;
111}
112
113static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
114 SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
115 SND_SOC_DAPM_HP("Headphone Jack", NULL),
116 SND_SOC_DAPM_MIC("Internal Mic", NULL),
117};
118
119static const struct snd_soc_dapm_route audio_map[] = {
120 {"Headphone Jack", NULL, "LOUT2"},
121 {"Headphone Jack", NULL, "ROUT2"},
122
123 {"Internal Speaker", NULL, "LOUT2"},
124 {"Internal Speaker", NULL, "ROUT2"},
125
126 {"Mic Bias", NULL, "Internal Mic"},
127 {"LINPUT2", NULL, "Mic Bias"},
128};
129
130static int smartq_wm8987_init(struct snd_soc_pcm_runtime *rtd)
131{
132 struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
133 int err = 0;
134
135
136 snd_soc_dapm_nc_pin(dapm, "LINPUT1");
137 snd_soc_dapm_nc_pin(dapm, "RINPUT1");
138 snd_soc_dapm_nc_pin(dapm, "OUT3");
139 snd_soc_dapm_nc_pin(dapm, "ROUT1");
140
141
142 err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
143 SND_JACK_HEADPHONE, &smartq_jack,
144 smartq_jack_pins,
145 ARRAY_SIZE(smartq_jack_pins));
146 if (err)
147 return err;
148
149 err = snd_soc_jack_add_gpios(&smartq_jack,
150 ARRAY_SIZE(smartq_jack_gpios),
151 smartq_jack_gpios);
152
153 return err;
154}
155
156static struct snd_soc_dai_link smartq_dai[] = {
157 {
158 .name = "wm8987",
159 .stream_name = "SmartQ Hi-Fi",
160 .cpu_dai_name = "samsung-i2s.0",
161 .codec_dai_name = "wm8750-hifi",
162 .platform_name = "samsung-i2s.0",
163 .codec_name = "wm8750.0-0x1a",
164 .init = smartq_wm8987_init,
165 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
166 SND_SOC_DAIFMT_CBS_CFS,
167 .ops = &smartq_hifi_ops,
168 },
169};
170
171static struct snd_soc_card snd_soc_smartq = {
172 .name = "SmartQ",
173 .owner = THIS_MODULE,
174 .dai_link = smartq_dai,
175 .num_links = ARRAY_SIZE(smartq_dai),
176
177 .dapm_widgets = wm8987_dapm_widgets,
178 .num_dapm_widgets = ARRAY_SIZE(wm8987_dapm_widgets),
179 .dapm_routes = audio_map,
180 .num_dapm_routes = ARRAY_SIZE(audio_map),
181 .controls = wm8987_smartq_controls,
182 .num_controls = ARRAY_SIZE(wm8987_smartq_controls),
183};
184
185static int smartq_probe(struct platform_device *pdev)
186{
187 struct gpio_desc *gpio;
188 int ret;
189
190 platform_set_drvdata(pdev, &snd_soc_smartq);
191
192
193 gpio = devm_gpiod_get(&pdev->dev, "amplifiers shutdown",
194 GPIOD_OUT_HIGH);
195 if (IS_ERR(gpio)) {
196 dev_err(&pdev->dev, "Failed to register GPK12\n");
197 ret = PTR_ERR(gpio);
198 goto out;
199 }
200 snd_soc_card_set_drvdata(&snd_soc_smartq, gpio);
201
202 ret = devm_snd_soc_register_card(&pdev->dev, &snd_soc_smartq);
203 if (ret)
204 dev_err(&pdev->dev, "Failed to register card\n");
205
206out:
207 return ret;
208}
209
210static struct platform_driver smartq_driver = {
211 .driver = {
212 .name = "smartq-audio",
213 },
214 .probe = smartq_probe,
215};
216
217module_platform_driver(smartq_driver);
218
219
220MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
221MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
222MODULE_LICENSE("GPL");
223
