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16#include <asm/mach-types.h>
17
18#include <linux/module.h>
19#include <linux/platform_device.h>
20#include <linux/slab.h>
21#include <linux/gpio.h>
22#include <linux/of_gpio.h>
23
24#include <sound/core.h>
25#include <sound/jack.h>
26#include <sound/pcm.h>
27#include <sound/pcm_params.h>
28#include <sound/soc.h>
29
30#include "../codecs/alc5632.h"
31
32#include "tegra_asoc_utils.h"
33
34#define DRV_NAME "tegra-alc5632"
35
36struct tegra_alc5632 {
37 struct tegra_asoc_utils_data util_data;
38 int gpio_hp_det;
39};
40
41static int tegra_alc5632_asoc_hw_params(struct snd_pcm_substream *substream,
42 struct snd_pcm_hw_params *params)
43{
44 struct snd_soc_pcm_runtime *rtd = substream->private_data;
45 struct snd_soc_dai *codec_dai = rtd->codec_dai;
46 struct snd_soc_codec *codec = codec_dai->codec;
47 struct snd_soc_card *card = codec->card;
48 struct tegra_alc5632 *alc5632 = snd_soc_card_get_drvdata(card);
49 int srate, mclk;
50 int err;
51
52 srate = params_rate(params);
53 mclk = 512 * srate;
54
55 err = tegra_asoc_utils_set_rate(&alc5632->util_data, srate, mclk);
56 if (err < 0) {
57 dev_err(card->dev, "Can't configure clocks\n");
58 return err;
59 }
60
61 err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
62 SND_SOC_CLOCK_IN);
63 if (err < 0) {
64 dev_err(card->dev, "codec_dai clock not set\n");
65 return err;
66 }
67
68 return 0;
69}
70
71static struct snd_soc_ops tegra_alc5632_asoc_ops = {
72 .hw_params = tegra_alc5632_asoc_hw_params,
73};
74
75static struct snd_soc_jack tegra_alc5632_hs_jack;
76
77static struct snd_soc_jack_pin tegra_alc5632_hs_jack_pins[] = {
78 {
79 .pin = "Headset Mic",
80 .mask = SND_JACK_MICROPHONE,
81 },
82 {
83 .pin = "Headset Stereophone",
84 .mask = SND_JACK_HEADPHONE,
85 },
86};
87
88static struct snd_soc_jack_gpio tegra_alc5632_hp_jack_gpio = {
89 .name = "Headset detection",
90 .report = SND_JACK_HEADSET,
91 .debounce_time = 150,
92};
93
94static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = {
95 SND_SOC_DAPM_SPK("Int Spk", NULL),
96 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
97 SND_SOC_DAPM_MIC("Headset Mic", NULL),
98 SND_SOC_DAPM_MIC("Digital Mic", NULL),
99};
100
101static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
102 SOC_DAPM_PIN_SWITCH("Int Spk"),
103};
104
105static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
106{
107 struct snd_soc_dai *codec_dai = rtd->codec_dai;
108 struct snd_soc_codec *codec = codec_dai->codec;
109 struct snd_soc_dapm_context *dapm = &codec->dapm;
110 struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(codec->card);
111
112 snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET,
113 &tegra_alc5632_hs_jack);
114 snd_soc_jack_add_pins(&tegra_alc5632_hs_jack,
115 ARRAY_SIZE(tegra_alc5632_hs_jack_pins),
116 tegra_alc5632_hs_jack_pins);
117
118 if (gpio_is_valid(machine->gpio_hp_det)) {
119 tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
120 snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
121 1,
122 &tegra_alc5632_hp_jack_gpio);
123 }
124
125 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
126
127 return 0;
128}
129
130static struct snd_soc_dai_link tegra_alc5632_dai = {
131 .name = "ALC5632",
132 .stream_name = "ALC5632 PCM",
133 .codec_dai_name = "alc5632-hifi",
134 .init = tegra_alc5632_asoc_init,
135 .ops = &tegra_alc5632_asoc_ops,
136 .dai_fmt = SND_SOC_DAIFMT_I2S
137 | SND_SOC_DAIFMT_NB_NF
138 | SND_SOC_DAIFMT_CBS_CFS,
139};
140
141static struct snd_soc_card snd_soc_tegra_alc5632 = {
142 .name = "tegra-alc5632",
143 .owner = THIS_MODULE,
144 .dai_link = &tegra_alc5632_dai,
145 .num_links = 1,
146 .controls = tegra_alc5632_controls,
147 .num_controls = ARRAY_SIZE(tegra_alc5632_controls),
148 .dapm_widgets = tegra_alc5632_dapm_widgets,
149 .num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
150 .fully_routed = true,
151};
152
153static __devinit int tegra_alc5632_probe(struct platform_device *pdev)
154{
155 struct device_node *np = pdev->dev.of_node;
156 struct snd_soc_card *card = &snd_soc_tegra_alc5632;
157 struct tegra_alc5632 *alc5632;
158 int ret;
159
160 alc5632 = devm_kzalloc(&pdev->dev,
161 sizeof(struct tegra_alc5632), GFP_KERNEL);
162 if (!alc5632) {
163 dev_err(&pdev->dev, "Can't allocate tegra_alc5632\n");
164 ret = -ENOMEM;
165 goto err;
166 }
167
168 card->dev = &pdev->dev;
169 platform_set_drvdata(pdev, card);
170 snd_soc_card_set_drvdata(card, alc5632);
171
172 if (!(pdev->dev.of_node)) {
173 dev_err(&pdev->dev, "Must be instantiated using device tree\n");
174 ret = -EINVAL;
175 goto err;
176 }
177
178 alc5632->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
179 if (alc5632->gpio_hp_det == -EPROBE_DEFER)
180 return -EPROBE_DEFER;
181
182 ret = snd_soc_of_parse_card_name(card, "nvidia,model");
183 if (ret)
184 goto err;
185
186 ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
187 if (ret)
188 goto err;
189
190 tegra_alc5632_dai.codec_of_node = of_parse_phandle(
191 pdev->dev.of_node, "nvidia,audio-codec", 0);
192
193 if (!tegra_alc5632_dai.codec_of_node) {
194 dev_err(&pdev->dev,
195 "Property 'nvidia,audio-codec' missing or invalid\n");
196 ret = -EINVAL;
197 goto err;
198 }
199
200 tegra_alc5632_dai.cpu_of_node = of_parse_phandle(
201 pdev->dev.of_node, "nvidia,i2s-controller", 0);
202 if (!tegra_alc5632_dai.cpu_of_node) {
203 dev_err(&pdev->dev,
204 "Property 'nvidia,i2s-controller' missing or invalid\n");
205 ret = -EINVAL;
206 goto err;
207 }
208
209 tegra_alc5632_dai.platform_of_node = tegra_alc5632_dai.cpu_of_node;
210
211 ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
212 if (ret)
213 goto err;
214
215 ret = snd_soc_register_card(card);
216 if (ret) {
217 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
218 ret);
219 goto err_fini_utils;
220 }
221
222 return 0;
223
224err_fini_utils:
225 tegra_asoc_utils_fini(&alc5632->util_data);
226err:
227 return ret;
228}
229
230static int __devexit tegra_alc5632_remove(struct platform_device *pdev)
231{
232 struct snd_soc_card *card = platform_get_drvdata(pdev);
233 struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
234
235 snd_soc_jack_free_gpios(&tegra_alc5632_hs_jack, 1,
236 &tegra_alc5632_hp_jack_gpio);
237
238 snd_soc_unregister_card(card);
239
240 tegra_asoc_utils_fini(&machine->util_data);
241
242 return 0;
243}
244
245static const struct of_device_id tegra_alc5632_of_match[] __devinitconst = {
246 { .compatible = "nvidia,tegra-audio-alc5632", },
247 {},
248};
249
250static struct platform_driver tegra_alc5632_driver = {
251 .driver = {
252 .name = DRV_NAME,
253 .owner = THIS_MODULE,
254 .pm = &snd_soc_pm_ops,
255 .of_match_table = tegra_alc5632_of_match,
256 },
257 .probe = tegra_alc5632_probe,
258 .remove = __devexit_p(tegra_alc5632_remove),
259};
260module_platform_driver(tegra_alc5632_driver);
261
262MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
263MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
264MODULE_LICENSE("GPL");
265MODULE_ALIAS("platform:" DRV_NAME);
266MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);
267
