Version:  2.0.40 2.2.26 2.4.37 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17

Linux/sound/soc/tegra/tegra_alc5632.c

  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 <linux/module.h>
 17 #include <linux/platform_device.h>
 18 #include <linux/slab.h>
 19 #include <linux/gpio.h>
 20 #include <linux/of_gpio.h>
 21 
 22 #include <sound/core.h>
 23 #include <sound/jack.h>
 24 #include <sound/pcm.h>
 25 #include <sound/pcm_params.h>
 26 #include <sound/soc.h>
 27 
 28 #include "../codecs/alc5632.h"
 29 
 30 #include "tegra_asoc_utils.h"
 31 
 32 #define DRV_NAME "tegra-alc5632"
 33 
 34 struct tegra_alc5632 {
 35         struct tegra_asoc_utils_data util_data;
 36         int gpio_hp_det;
 37 };
 38 
 39 static int tegra_alc5632_asoc_hw_params(struct snd_pcm_substream *substream,
 40                                         struct snd_pcm_hw_params *params)
 41 {
 42         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 43         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 44         struct snd_soc_card *card = rtd->card;
 45         struct tegra_alc5632 *alc5632 = snd_soc_card_get_drvdata(card);
 46         int srate, mclk;
 47         int err;
 48 
 49         srate = params_rate(params);
 50         mclk = 512 * srate;
 51 
 52         err = tegra_asoc_utils_set_rate(&alc5632->util_data, srate, mclk);
 53         if (err < 0) {
 54                 dev_err(card->dev, "Can't configure clocks\n");
 55                 return err;
 56         }
 57 
 58         err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
 59                                         SND_SOC_CLOCK_IN);
 60         if (err < 0) {
 61                 dev_err(card->dev, "codec_dai clock not set\n");
 62                 return err;
 63         }
 64 
 65         return 0;
 66 }
 67 
 68 static struct snd_soc_ops tegra_alc5632_asoc_ops = {
 69         .hw_params = tegra_alc5632_asoc_hw_params,
 70 };
 71 
 72 static struct snd_soc_jack tegra_alc5632_hs_jack;
 73 
 74 static struct snd_soc_jack_pin tegra_alc5632_hs_jack_pins[] = {
 75         {
 76                 .pin = "Headset Mic",
 77                 .mask = SND_JACK_MICROPHONE,
 78         },
 79         {
 80                 .pin = "Headset Stereophone",
 81                 .mask = SND_JACK_HEADPHONE,
 82         },
 83 };
 84 
 85 static struct snd_soc_jack_gpio tegra_alc5632_hp_jack_gpio = {
 86         .name = "Headset detection",
 87         .report = SND_JACK_HEADSET,
 88         .debounce_time = 150,
 89 };
 90 
 91 static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = {
 92         SND_SOC_DAPM_SPK("Int Spk", NULL),
 93         SND_SOC_DAPM_HP("Headset Stereophone", NULL),
 94         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 95         SND_SOC_DAPM_MIC("Digital Mic", NULL),
 96 };
 97 
 98 static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
 99         SOC_DAPM_PIN_SWITCH("Int Spk"),
100 };
101 
102 static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
103 {
104         struct snd_soc_dai *codec_dai = rtd->codec_dai;
105         struct snd_soc_codec *codec = codec_dai->codec;
106         struct snd_soc_dapm_context *dapm = &codec->dapm;
107         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(rtd->card);
108 
109         snd_soc_jack_new(codec, "Headset Jack", SND_JACK_HEADSET,
110                          &tegra_alc5632_hs_jack);
111         snd_soc_jack_add_pins(&tegra_alc5632_hs_jack,
112                         ARRAY_SIZE(tegra_alc5632_hs_jack_pins),
113                         tegra_alc5632_hs_jack_pins);
114 
115         if (gpio_is_valid(machine->gpio_hp_det)) {
116                 tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
117                 snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
118                                                 1,
119                                                 &tegra_alc5632_hp_jack_gpio);
120         }
121 
122         snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
123 
124         return 0;
125 }
126 
127 static int tegra_alc5632_card_remove(struct snd_soc_card *card)
128 {
129         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
130 
131         if (gpio_is_valid(machine->gpio_hp_det)) {
132                 snd_soc_jack_free_gpios(&tegra_alc5632_hs_jack, 1,
133                                         &tegra_alc5632_hp_jack_gpio);
134         }
135 
136         return 0;
137 }
138 
139 static struct snd_soc_dai_link tegra_alc5632_dai = {
140         .name = "ALC5632",
141         .stream_name = "ALC5632 PCM",
142         .codec_dai_name = "alc5632-hifi",
143         .init = tegra_alc5632_asoc_init,
144         .ops = &tegra_alc5632_asoc_ops,
145         .dai_fmt = SND_SOC_DAIFMT_I2S
146                            | SND_SOC_DAIFMT_NB_NF
147                            | SND_SOC_DAIFMT_CBS_CFS,
148 };
149 
150 static struct snd_soc_card snd_soc_tegra_alc5632 = {
151         .name = "tegra-alc5632",
152         .owner = THIS_MODULE,
153         .remove = tegra_alc5632_card_remove,
154         .dai_link = &tegra_alc5632_dai,
155         .num_links = 1,
156         .controls = tegra_alc5632_controls,
157         .num_controls = ARRAY_SIZE(tegra_alc5632_controls),
158         .dapm_widgets = tegra_alc5632_dapm_widgets,
159         .num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
160         .fully_routed = true,
161 };
162 
163 static int tegra_alc5632_probe(struct platform_device *pdev)
164 {
165         struct device_node *np = pdev->dev.of_node;
166         struct snd_soc_card *card = &snd_soc_tegra_alc5632;
167         struct tegra_alc5632 *alc5632;
168         int ret;
169 
170         alc5632 = devm_kzalloc(&pdev->dev,
171                         sizeof(struct tegra_alc5632), GFP_KERNEL);
172         if (!alc5632) {
173                 dev_err(&pdev->dev, "Can't allocate tegra_alc5632\n");
174                 return -ENOMEM;
175         }
176 
177         card->dev = &pdev->dev;
178         platform_set_drvdata(pdev, card);
179         snd_soc_card_set_drvdata(card, alc5632);
180 
181         alc5632->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
182         if (alc5632->gpio_hp_det == -EPROBE_DEFER)
183                 return -EPROBE_DEFER;
184 
185         ret = snd_soc_of_parse_card_name(card, "nvidia,model");
186         if (ret)
187                 goto err;
188 
189         ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
190         if (ret)
191                 goto err;
192 
193         tegra_alc5632_dai.codec_of_node = of_parse_phandle(
194                         pdev->dev.of_node, "nvidia,audio-codec", 0);
195 
196         if (!tegra_alc5632_dai.codec_of_node) {
197                 dev_err(&pdev->dev,
198                         "Property 'nvidia,audio-codec' missing or invalid\n");
199                 ret = -EINVAL;
200                 goto err;
201         }
202 
203         tegra_alc5632_dai.cpu_of_node = of_parse_phandle(np,
204                         "nvidia,i2s-controller", 0);
205         if (!tegra_alc5632_dai.cpu_of_node) {
206                 dev_err(&pdev->dev,
207                         "Property 'nvidia,i2s-controller' missing or invalid\n");
208                 ret = -EINVAL;
209                 goto err;
210         }
211 
212         tegra_alc5632_dai.platform_of_node = tegra_alc5632_dai.cpu_of_node;
213 
214         ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
215         if (ret)
216                 goto err;
217 
218         ret = snd_soc_register_card(card);
219         if (ret) {
220                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
221                         ret);
222                 goto err_fini_utils;
223         }
224 
225         return 0;
226 
227 err_fini_utils:
228         tegra_asoc_utils_fini(&alc5632->util_data);
229 err:
230         return ret;
231 }
232 
233 static int tegra_alc5632_remove(struct platform_device *pdev)
234 {
235         struct snd_soc_card *card = platform_get_drvdata(pdev);
236         struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
237 
238         snd_soc_unregister_card(card);
239 
240         tegra_asoc_utils_fini(&machine->util_data);
241 
242         return 0;
243 }
244 
245 static const struct of_device_id tegra_alc5632_of_match[] = {
246         { .compatible = "nvidia,tegra-audio-alc5632", },
247         {},
248 };
249 
250 static 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 = tegra_alc5632_remove,
259 };
260 module_platform_driver(tegra_alc5632_driver);
261 
262 MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
263 MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
264 MODULE_LICENSE("GPL");
265 MODULE_ALIAS("platform:" DRV_NAME);
266 MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);
267 

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