]>
Commit | Line | Data |
---|---|---|
74e72201 MV |
1 | /* |
2 | * linux/sound/soc/pxa/palm27x.c | |
3 | * | |
4 | * SoC Audio driver for Palm T|X, T5 and LifeDrive | |
5 | * | |
6 | * based on tosa.c | |
7 | * | |
8 | * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/moduleparam.h> | |
18 | #include <linux/device.h> | |
19 | #include <linux/gpio.h> | |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/irq.h> | |
22 | ||
23 | #include <sound/core.h> | |
24 | #include <sound/pcm.h> | |
25 | #include <sound/soc.h> | |
26 | #include <sound/soc-dapm.h> | |
27 | ||
28 | #include <asm/mach-types.h> | |
29 | #include <mach/audio.h> | |
30 | #include <mach/palmasoc.h> | |
31 | ||
32 | #include "../codecs/wm9712.h" | |
33 | #include "pxa2xx-pcm.h" | |
34 | #include "pxa2xx-ac97.h" | |
35 | ||
36 | static int palm27x_jack_func = 1; | |
37 | static int palm27x_spk_func = 1; | |
38 | static int palm27x_ep_gpio = -1; | |
39 | ||
40 | static void palm27x_ext_control(struct snd_soc_codec *codec) | |
41 | { | |
42 | if (!palm27x_spk_func) | |
43 | snd_soc_dapm_enable_pin(codec, "Speaker"); | |
44 | else | |
45 | snd_soc_dapm_disable_pin(codec, "Speaker"); | |
46 | ||
47 | if (!palm27x_jack_func) | |
48 | snd_soc_dapm_enable_pin(codec, "Headphone Jack"); | |
49 | else | |
50 | snd_soc_dapm_disable_pin(codec, "Headphone Jack"); | |
51 | ||
52 | snd_soc_dapm_sync(codec); | |
53 | } | |
54 | ||
55 | static int palm27x_startup(struct snd_pcm_substream *substream) | |
56 | { | |
57 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
58 | struct snd_soc_codec *codec = rtd->socdev->codec; | |
59 | ||
60 | /* check the jack status at stream startup */ | |
61 | palm27x_ext_control(codec); | |
62 | return 0; | |
63 | } | |
64 | ||
65 | static struct snd_soc_ops palm27x_ops = { | |
66 | .startup = palm27x_startup, | |
67 | }; | |
68 | ||
69 | static irqreturn_t palm27x_interrupt(int irq, void *v) | |
70 | { | |
71 | palm27x_spk_func = gpio_get_value(palm27x_ep_gpio); | |
72 | palm27x_jack_func = !palm27x_spk_func; | |
73 | return IRQ_HANDLED; | |
74 | } | |
75 | ||
76 | static int palm27x_get_jack(struct snd_kcontrol *kcontrol, | |
77 | struct snd_ctl_elem_value *ucontrol) | |
78 | { | |
79 | ucontrol->value.integer.value[0] = palm27x_jack_func; | |
80 | return 0; | |
81 | } | |
82 | ||
83 | static int palm27x_set_jack(struct snd_kcontrol *kcontrol, | |
84 | struct snd_ctl_elem_value *ucontrol) | |
85 | { | |
86 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
87 | ||
88 | if (palm27x_jack_func == ucontrol->value.integer.value[0]) | |
89 | return 0; | |
90 | ||
91 | palm27x_jack_func = ucontrol->value.integer.value[0]; | |
92 | palm27x_ext_control(codec); | |
93 | return 1; | |
94 | } | |
95 | ||
96 | static int palm27x_get_spk(struct snd_kcontrol *kcontrol, | |
97 | struct snd_ctl_elem_value *ucontrol) | |
98 | { | |
99 | ucontrol->value.integer.value[0] = palm27x_spk_func; | |
100 | return 0; | |
101 | } | |
102 | ||
103 | static int palm27x_set_spk(struct snd_kcontrol *kcontrol, | |
104 | struct snd_ctl_elem_value *ucontrol) | |
105 | { | |
106 | struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | |
107 | ||
108 | if (palm27x_spk_func == ucontrol->value.integer.value[0]) | |
109 | return 0; | |
110 | ||
111 | palm27x_spk_func = ucontrol->value.integer.value[0]; | |
112 | palm27x_ext_control(codec); | |
113 | return 1; | |
114 | } | |
115 | ||
116 | /* PalmTX machine dapm widgets */ | |
117 | static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = { | |
118 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
119 | SND_SOC_DAPM_SPK("Speaker", NULL), | |
120 | }; | |
121 | ||
122 | /* PalmTX audio map */ | |
123 | static const struct snd_soc_dapm_route audio_map[] = { | |
124 | /* headphone connected to HPOUTL, HPOUTR */ | |
125 | {"Headphone Jack", NULL, "HPOUTL"}, | |
126 | {"Headphone Jack", NULL, "HPOUTR"}, | |
127 | ||
128 | /* ext speaker connected to ROUT2, LOUT2 */ | |
129 | {"Speaker", NULL, "LOUT2"}, | |
130 | {"Speaker", NULL, "ROUT2"}, | |
131 | }; | |
132 | ||
133 | static const char *jack_function[] = {"Headphone", "Off"}; | |
134 | static const char *spk_function[] = {"On", "Off"}; | |
135 | static const struct soc_enum palm27x_enum[] = { | |
136 | SOC_ENUM_SINGLE_EXT(2, jack_function), | |
137 | SOC_ENUM_SINGLE_EXT(2, spk_function), | |
138 | }; | |
139 | ||
140 | static const struct snd_kcontrol_new palm27x_controls[] = { | |
141 | SOC_ENUM_EXT("Jack Function", palm27x_enum[0], palm27x_get_jack, | |
142 | palm27x_set_jack), | |
143 | SOC_ENUM_EXT("Speaker Function", palm27x_enum[1], palm27x_get_spk, | |
144 | palm27x_set_spk), | |
145 | }; | |
146 | ||
147 | static int palm27x_ac97_init(struct snd_soc_codec *codec) | |
148 | { | |
149 | int i, err; | |
150 | ||
151 | snd_soc_dapm_nc_pin(codec, "OUT3"); | |
152 | snd_soc_dapm_nc_pin(codec, "MONOOUT"); | |
153 | ||
154 | /* add palm27x specific controls */ | |
155 | for (i = 0; i < ARRAY_SIZE(palm27x_controls); i++) { | |
156 | err = snd_ctl_add(codec->card, | |
157 | snd_soc_cnew(&palm27x_controls[i], | |
158 | codec, NULL)); | |
159 | if (err < 0) | |
160 | return err; | |
161 | } | |
162 | ||
163 | /* add palm27x specific widgets */ | |
164 | snd_soc_dapm_new_controls(codec, palm27x_dapm_widgets, | |
165 | ARRAY_SIZE(palm27x_dapm_widgets)); | |
166 | ||
167 | /* set up palm27x specific audio path audio_map */ | |
168 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
169 | ||
170 | snd_soc_dapm_sync(codec); | |
171 | return 0; | |
172 | } | |
173 | ||
174 | static struct snd_soc_dai_link palm27x_dai[] = { | |
175 | { | |
176 | .name = "AC97 HiFi", | |
177 | .stream_name = "AC97 HiFi", | |
178 | .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], | |
179 | .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI], | |
180 | .init = palm27x_ac97_init, | |
181 | .ops = &palm27x_ops, | |
182 | }, | |
183 | { | |
184 | .name = "AC97 Aux", | |
185 | .stream_name = "AC97 Aux", | |
186 | .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX], | |
187 | .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX], | |
188 | .ops = &palm27x_ops, | |
189 | }, | |
190 | }; | |
191 | ||
87506549 | 192 | static struct snd_soc_card palm27x_asoc = { |
74e72201 | 193 | .name = "Palm/PXA27x", |
87689d56 | 194 | .platform = &pxa2xx_soc_platform, |
74e72201 MV |
195 | .dai_link = palm27x_dai, |
196 | .num_links = ARRAY_SIZE(palm27x_dai), | |
197 | }; | |
198 | ||
199 | static struct snd_soc_device palm27x_snd_devdata = { | |
87506549 | 200 | .card = &palm27x_asoc, |
74e72201 MV |
201 | .codec_dev = &soc_codec_dev_wm9712, |
202 | }; | |
203 | ||
204 | static struct platform_device *palm27x_snd_device; | |
205 | ||
206 | static int __init palm27x_asoc_init(void) | |
207 | { | |
208 | int ret; | |
209 | ||
210 | if (!(machine_is_palmtx() || machine_is_palmt5() || | |
211 | machine_is_palmld())) | |
212 | return -ENODEV; | |
213 | ||
214 | ret = gpio_request(palm27x_ep_gpio, "Headphone Jack"); | |
215 | if (ret) | |
216 | return ret; | |
217 | ret = gpio_direction_input(palm27x_ep_gpio); | |
218 | if (ret) | |
219 | goto err_alloc; | |
220 | ||
221 | if (request_irq(gpio_to_irq(palm27x_ep_gpio), palm27x_interrupt, | |
222 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, | |
223 | "Headphone jack", NULL)) | |
224 | goto err_alloc; | |
225 | ||
226 | palm27x_snd_device = platform_device_alloc("soc-audio", -1); | |
227 | if (!palm27x_snd_device) { | |
228 | ret = -ENOMEM; | |
229 | goto err_dev; | |
230 | } | |
231 | ||
232 | platform_set_drvdata(palm27x_snd_device, &palm27x_snd_devdata); | |
233 | palm27x_snd_devdata.dev = &palm27x_snd_device->dev; | |
234 | ret = platform_device_add(palm27x_snd_device); | |
235 | ||
236 | if (ret != 0) | |
237 | goto put_device; | |
238 | ||
239 | return 0; | |
240 | ||
241 | put_device: | |
242 | platform_device_put(palm27x_snd_device); | |
243 | err_dev: | |
244 | free_irq(gpio_to_irq(palm27x_ep_gpio), NULL); | |
245 | err_alloc: | |
246 | gpio_free(palm27x_ep_gpio); | |
247 | ||
248 | return ret; | |
249 | } | |
250 | ||
251 | static void __exit palm27x_asoc_exit(void) | |
252 | { | |
253 | free_irq(gpio_to_irq(palm27x_ep_gpio), NULL); | |
254 | gpio_free(palm27x_ep_gpio); | |
255 | platform_device_unregister(palm27x_snd_device); | |
256 | } | |
257 | ||
258 | void __init palm27x_asoc_set_pdata(struct palm27x_asoc_info *data) | |
259 | { | |
260 | palm27x_ep_gpio = data->jack_gpio; | |
261 | } | |
262 | ||
263 | module_init(palm27x_asoc_init); | |
264 | module_exit(palm27x_asoc_exit); | |
265 | ||
266 | /* Module information */ | |
267 | MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); | |
268 | MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive"); | |
269 | MODULE_LICENSE("GPL"); |