1 /*
2 * tegra_alc5632.c -- Toshiba AC100(PAZ00) machine ASoC driver
3 *
4 * Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
5 * Copyright (C) 2012 - NVIDIA, Inc.
6 *
7 * Authors: Leon Romanovsky <leon@leon.nu>
8 * Andrey Danin <danindrey@mail.ru>
9 * Marc Dietrich <marvin24@gmx.de>
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 */
15
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
36 struct tegra_alc5632 {
37 struct tegra_asoc_utils_data util_data;
38 int gpio_hp_det;
39 };
40
tegra_alc5632_asoc_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)41 static 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
71 static struct snd_soc_ops tegra_alc5632_asoc_ops = {
72 .hw_params = tegra_alc5632_asoc_hw_params,
73 };
74
75 static struct snd_soc_jack tegra_alc5632_hs_jack;
76
77 static 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
88 static 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
94 static 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
101 static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
102 SOC_DAPM_PIN_SWITCH("Int Spk"),
103 };
104
tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime * rtd)105 static 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
130 static 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
141 static 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
tegra_alc5632_probe(struct platform_device * pdev)153 static 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 return -ENOMEM;
165 }
166
167 card->dev = &pdev->dev;
168 platform_set_drvdata(pdev, card);
169 snd_soc_card_set_drvdata(card, alc5632);
170
171 alc5632->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
172 if (alc5632->gpio_hp_det == -EPROBE_DEFER)
173 return -EPROBE_DEFER;
174
175 ret = snd_soc_of_parse_card_name(card, "nvidia,model");
176 if (ret)
177 goto err;
178
179 ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
180 if (ret)
181 goto err;
182
183 tegra_alc5632_dai.codec_of_node = of_parse_phandle(
184 pdev->dev.of_node, "nvidia,audio-codec", 0);
185
186 if (!tegra_alc5632_dai.codec_of_node) {
187 dev_err(&pdev->dev,
188 "Property 'nvidia,audio-codec' missing or invalid\n");
189 ret = -EINVAL;
190 goto err;
191 }
192
193 tegra_alc5632_dai.cpu_of_node = of_parse_phandle(np,
194 "nvidia,i2s-controller", 0);
195 if (!tegra_alc5632_dai.cpu_of_node) {
196 dev_err(&pdev->dev,
197 "Property 'nvidia,i2s-controller' missing or invalid\n");
198 ret = -EINVAL;
199 goto err;
200 }
201
202 tegra_alc5632_dai.platform_of_node = tegra_alc5632_dai.cpu_of_node;
203
204 ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
205 if (ret)
206 goto err;
207
208 ret = snd_soc_register_card(card);
209 if (ret) {
210 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
211 ret);
212 goto err_fini_utils;
213 }
214
215 return 0;
216
217 err_fini_utils:
218 tegra_asoc_utils_fini(&alc5632->util_data);
219 err:
220 return ret;
221 }
222
tegra_alc5632_remove(struct platform_device * pdev)223 static int tegra_alc5632_remove(struct platform_device *pdev)
224 {
225 struct snd_soc_card *card = platform_get_drvdata(pdev);
226 struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
227
228 snd_soc_jack_free_gpios(&tegra_alc5632_hs_jack, 1,
229 &tegra_alc5632_hp_jack_gpio);
230
231 snd_soc_unregister_card(card);
232
233 tegra_asoc_utils_fini(&machine->util_data);
234
235 return 0;
236 }
237
238 static const struct of_device_id tegra_alc5632_of_match[] = {
239 { .compatible = "nvidia,tegra-audio-alc5632", },
240 {},
241 };
242
243 static struct platform_driver tegra_alc5632_driver = {
244 .driver = {
245 .name = DRV_NAME,
246 .owner = THIS_MODULE,
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 };
253 module_platform_driver(tegra_alc5632_driver);
254
255 MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
256 MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
257 MODULE_LICENSE("GPL");
258 MODULE_ALIAS("platform:" DRV_NAME);
259 MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);
260