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