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
tegra_alc5632_asoc_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)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
tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime * rtd)102 static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
103 {
104 struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(rtd->card);
105
106 snd_soc_card_jack_new(rtd->card, "Headset Jack", SND_JACK_HEADSET,
107 &tegra_alc5632_hs_jack,
108 tegra_alc5632_hs_jack_pins,
109 ARRAY_SIZE(tegra_alc5632_hs_jack_pins));
110
111 if (gpio_is_valid(machine->gpio_hp_det)) {
112 tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
113 snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
114 1,
115 &tegra_alc5632_hp_jack_gpio);
116 }
117
118 snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "MICBIAS1");
119
120 return 0;
121 }
122
tegra_alc5632_card_remove(struct snd_soc_card * card)123 static int tegra_alc5632_card_remove(struct snd_soc_card *card)
124 {
125 struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
126
127 if (gpio_is_valid(machine->gpio_hp_det)) {
128 snd_soc_jack_free_gpios(&tegra_alc5632_hs_jack, 1,
129 &tegra_alc5632_hp_jack_gpio);
130 }
131
132 return 0;
133 }
134
135 static struct snd_soc_dai_link tegra_alc5632_dai = {
136 .name = "ALC5632",
137 .stream_name = "ALC5632 PCM",
138 .codec_dai_name = "alc5632-hifi",
139 .init = tegra_alc5632_asoc_init,
140 .ops = &tegra_alc5632_asoc_ops,
141 .dai_fmt = SND_SOC_DAIFMT_I2S
142 | SND_SOC_DAIFMT_NB_NF
143 | SND_SOC_DAIFMT_CBS_CFS,
144 };
145
146 static struct snd_soc_card snd_soc_tegra_alc5632 = {
147 .name = "tegra-alc5632",
148 .owner = THIS_MODULE,
149 .remove = tegra_alc5632_card_remove,
150 .dai_link = &tegra_alc5632_dai,
151 .num_links = 1,
152 .controls = tegra_alc5632_controls,
153 .num_controls = ARRAY_SIZE(tegra_alc5632_controls),
154 .dapm_widgets = tegra_alc5632_dapm_widgets,
155 .num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
156 .fully_routed = true,
157 };
158
tegra_alc5632_probe(struct platform_device * pdev)159 static int tegra_alc5632_probe(struct platform_device *pdev)
160 {
161 struct device_node *np = pdev->dev.of_node;
162 struct snd_soc_card *card = &snd_soc_tegra_alc5632;
163 struct tegra_alc5632 *alc5632;
164 int ret;
165
166 alc5632 = devm_kzalloc(&pdev->dev,
167 sizeof(struct tegra_alc5632), GFP_KERNEL);
168 if (!alc5632) {
169 dev_err(&pdev->dev, "Can't allocate tegra_alc5632\n");
170 return -ENOMEM;
171 }
172
173 card->dev = &pdev->dev;
174 platform_set_drvdata(pdev, card);
175 snd_soc_card_set_drvdata(card, alc5632);
176
177 alc5632->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
178 if (alc5632->gpio_hp_det == -EPROBE_DEFER)
179 return -EPROBE_DEFER;
180
181 ret = snd_soc_of_parse_card_name(card, "nvidia,model");
182 if (ret)
183 goto err;
184
185 ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
186 if (ret)
187 goto err;
188
189 tegra_alc5632_dai.codec_of_node = of_parse_phandle(
190 pdev->dev.of_node, "nvidia,audio-codec", 0);
191
192 if (!tegra_alc5632_dai.codec_of_node) {
193 dev_err(&pdev->dev,
194 "Property 'nvidia,audio-codec' missing or invalid\n");
195 ret = -EINVAL;
196 goto err;
197 }
198
199 tegra_alc5632_dai.cpu_of_node = of_parse_phandle(np,
200 "nvidia,i2s-controller", 0);
201 if (!tegra_alc5632_dai.cpu_of_node) {
202 dev_err(&pdev->dev,
203 "Property 'nvidia,i2s-controller' missing or invalid\n");
204 ret = -EINVAL;
205 goto err;
206 }
207
208 tegra_alc5632_dai.platform_of_node = tegra_alc5632_dai.cpu_of_node;
209
210 ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
211 if (ret)
212 goto err;
213
214 ret = snd_soc_register_card(card);
215 if (ret) {
216 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
217 ret);
218 goto err_fini_utils;
219 }
220
221 return 0;
222
223 err_fini_utils:
224 tegra_asoc_utils_fini(&alc5632->util_data);
225 err:
226 return ret;
227 }
228
tegra_alc5632_remove(struct platform_device * pdev)229 static int tegra_alc5632_remove(struct platform_device *pdev)
230 {
231 struct snd_soc_card *card = platform_get_drvdata(pdev);
232 struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
233
234 snd_soc_unregister_card(card);
235
236 tegra_asoc_utils_fini(&machine->util_data);
237
238 return 0;
239 }
240
241 static const struct of_device_id tegra_alc5632_of_match[] = {
242 { .compatible = "nvidia,tegra-audio-alc5632", },
243 {},
244 };
245
246 static struct platform_driver tegra_alc5632_driver = {
247 .driver = {
248 .name = DRV_NAME,
249 .pm = &snd_soc_pm_ops,
250 .of_match_table = tegra_alc5632_of_match,
251 },
252 .probe = tegra_alc5632_probe,
253 .remove = tegra_alc5632_remove,
254 };
255 module_platform_driver(tegra_alc5632_driver);
256
257 MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
258 MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
259 MODULE_LICENSE("GPL");
260 MODULE_ALIAS("platform:" DRV_NAME);
261 MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);
262