]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - sound/soc/pxa/hx4700.c
ASoC: max98504: Add missing MAX98504 on SND_SOC_ALL_CODECS
[mirror_ubuntu-bionic-kernel.git] / sound / soc / pxa / hx4700.c
1 /*
2 * SoC audio for HP iPAQ hx4700
3 *
4 * Copyright (c) 2009 Philipp Zabel
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 */
12
13 #include <linux/module.h>
14 #include <linux/timer.h>
15 #include <linux/interrupt.h>
16 #include <linux/platform_device.h>
17 #include <linux/delay.h>
18 #include <linux/gpio.h>
19
20 #include <sound/core.h>
21 #include <sound/jack.h>
22 #include <sound/pcm.h>
23 #include <sound/pcm_params.h>
24 #include <sound/soc.h>
25
26 #include <mach/hx4700.h>
27 #include <asm/mach-types.h>
28 #include "pxa2xx-i2s.h"
29
30 #include "../codecs/ak4641.h"
31
32 static struct snd_soc_jack hs_jack;
33
34 /* Headphones jack detection DAPM pin */
35 static struct snd_soc_jack_pin hs_jack_pin[] = {
36 {
37 .pin = "Headphone Jack",
38 .mask = SND_JACK_HEADPHONE,
39 },
40 {
41 .pin = "Speaker",
42 /* disable speaker when hp jack is inserted */
43 .mask = SND_JACK_HEADPHONE,
44 .invert = 1,
45 },
46 };
47
48 /* Headphones jack detection GPIO */
49 static struct snd_soc_jack_gpio hs_jack_gpio = {
50 .gpio = GPIO75_HX4700_EARPHONE_nDET,
51 .invert = true,
52 .name = "hp-gpio",
53 .report = SND_JACK_HEADPHONE,
54 .debounce_time = 200,
55 };
56
57 /*
58 * iPAQ hx4700 uses I2S for capture and playback.
59 */
60 static int hx4700_hw_params(struct snd_pcm_substream *substream,
61 struct snd_pcm_hw_params *params)
62 {
63 struct snd_soc_pcm_runtime *rtd = substream->private_data;
64 struct snd_soc_dai *codec_dai = rtd->codec_dai;
65 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
66 int ret = 0;
67
68 /* set the I2S system clock as output */
69 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
70 SND_SOC_CLOCK_OUT);
71 if (ret < 0)
72 return ret;
73
74 /* inform codec driver about clock freq *
75 * (PXA I2S always uses divider 256) */
76 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 256 * params_rate(params),
77 SND_SOC_CLOCK_IN);
78 if (ret < 0)
79 return ret;
80
81 return 0;
82 }
83
84 static struct snd_soc_ops hx4700_ops = {
85 .hw_params = hx4700_hw_params,
86 };
87
88 static int hx4700_spk_power(struct snd_soc_dapm_widget *w,
89 struct snd_kcontrol *k, int event)
90 {
91 gpio_set_value(GPIO107_HX4700_SPK_nSD, !!SND_SOC_DAPM_EVENT_ON(event));
92 return 0;
93 }
94
95 static int hx4700_hp_power(struct snd_soc_dapm_widget *w,
96 struct snd_kcontrol *k, int event)
97 {
98 gpio_set_value(GPIO92_HX4700_HP_DRIVER, !!SND_SOC_DAPM_EVENT_ON(event));
99 return 0;
100 }
101
102 /* hx4700 machine dapm widgets */
103 static const struct snd_soc_dapm_widget hx4700_dapm_widgets[] = {
104 SND_SOC_DAPM_HP("Headphone Jack", hx4700_hp_power),
105 SND_SOC_DAPM_SPK("Speaker", hx4700_spk_power),
106 SND_SOC_DAPM_MIC("Built-in Microphone", NULL),
107 };
108
109 /* hx4700 machine audio_map */
110 static const struct snd_soc_dapm_route hx4700_audio_map[] = {
111
112 /* Headphone connected to LOUT, ROUT */
113 {"Headphone Jack", NULL, "LOUT"},
114 {"Headphone Jack", NULL, "ROUT"},
115
116 /* Speaker connected to MOUT2 */
117 {"Speaker", NULL, "MOUT2"},
118
119 /* Microphone connected to MICIN */
120 {"MICIN", NULL, "Built-in Microphone"},
121 {"AIN", NULL, "MICOUT"},
122 };
123
124 /*
125 * Logic for a ak4641 as connected on a HP iPAQ hx4700
126 */
127 static int hx4700_ak4641_init(struct snd_soc_pcm_runtime *rtd)
128 {
129 int err;
130
131 /* Jack detection API stuff */
132 err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
133 SND_JACK_HEADPHONE, &hs_jack, hs_jack_pin,
134 ARRAY_SIZE(hs_jack_pin));
135 if (err)
136 return err;
137
138 err = snd_soc_jack_add_gpios(&hs_jack, 1, &hs_jack_gpio);
139
140 return err;
141 }
142
143 static int hx4700_card_remove(struct snd_soc_card *card)
144 {
145 snd_soc_jack_free_gpios(&hs_jack, 1, &hs_jack_gpio);
146
147 return 0;
148 }
149
150 /* hx4700 digital audio interface glue - connects codec <--> CPU */
151 static struct snd_soc_dai_link hx4700_dai = {
152 .name = "ak4641",
153 .stream_name = "AK4641",
154 .cpu_dai_name = "pxa2xx-i2s",
155 .codec_dai_name = "ak4641-hifi",
156 .platform_name = "pxa-pcm-audio",
157 .codec_name = "ak4641.0-0012",
158 .init = hx4700_ak4641_init,
159 .dai_fmt = SND_SOC_DAIFMT_MSB | SND_SOC_DAIFMT_NB_NF |
160 SND_SOC_DAIFMT_CBS_CFS,
161 .ops = &hx4700_ops,
162 };
163
164 /* hx4700 audio machine driver */
165 static struct snd_soc_card snd_soc_card_hx4700 = {
166 .name = "iPAQ hx4700",
167 .owner = THIS_MODULE,
168 .remove = hx4700_card_remove,
169 .dai_link = &hx4700_dai,
170 .num_links = 1,
171 .dapm_widgets = hx4700_dapm_widgets,
172 .num_dapm_widgets = ARRAY_SIZE(hx4700_dapm_widgets),
173 .dapm_routes = hx4700_audio_map,
174 .num_dapm_routes = ARRAY_SIZE(hx4700_audio_map),
175 .fully_routed = true,
176 };
177
178 static struct gpio hx4700_audio_gpios[] = {
179 { GPIO107_HX4700_SPK_nSD, GPIOF_OUT_INIT_HIGH, "SPK_POWER" },
180 { GPIO92_HX4700_HP_DRIVER, GPIOF_OUT_INIT_LOW, "EP_POWER" },
181 };
182
183 static int hx4700_audio_probe(struct platform_device *pdev)
184 {
185 int ret;
186
187 if (!machine_is_h4700())
188 return -ENODEV;
189
190 ret = gpio_request_array(hx4700_audio_gpios,
191 ARRAY_SIZE(hx4700_audio_gpios));
192 if (ret)
193 return ret;
194
195 snd_soc_card_hx4700.dev = &pdev->dev;
196 ret = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_hx4700);
197 if (ret)
198 gpio_free_array(hx4700_audio_gpios,
199 ARRAY_SIZE(hx4700_audio_gpios));
200
201 return ret;
202 }
203
204 static int hx4700_audio_remove(struct platform_device *pdev)
205 {
206 gpio_set_value(GPIO92_HX4700_HP_DRIVER, 0);
207 gpio_set_value(GPIO107_HX4700_SPK_nSD, 0);
208
209 gpio_free_array(hx4700_audio_gpios, ARRAY_SIZE(hx4700_audio_gpios));
210 return 0;
211 }
212
213 static struct platform_driver hx4700_audio_driver = {
214 .driver = {
215 .name = "hx4700-audio",
216 .pm = &snd_soc_pm_ops,
217 },
218 .probe = hx4700_audio_probe,
219 .remove = hx4700_audio_remove,
220 };
221
222 module_platform_driver(hx4700_audio_driver);
223
224 MODULE_AUTHOR("Philipp Zabel");
225 MODULE_DESCRIPTION("ALSA SoC iPAQ hx4700");
226 MODULE_LICENSE("GPL");
227 MODULE_ALIAS("platform:hx4700-audio");