- patches.arch/x86_mce_intel_decode_physical_address.patch:
[linux-flexiantxendom0-3.2.10.git] / sound / soc / omap / rx51.c
1 /*
2  * rx51.c  --  SoC audio for Nokia RX-51
3  *
4  * Copyright (C) 2008 - 2009 Nokia Corporation
5  *
6  * Contact: Peter Ujfalusi <peter.ujfalusi@nokia.com>
7  *          Eduardo Valentin <eduardo.valentin@nokia.com>
8  *          Jarkko Nikula <jhnikula@gmail.com>
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License
12  * version 2 as published by the Free Software Foundation.
13  *
14  * This program is distributed in the hope that it will be useful, but
15  * WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17  * General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22  * 02110-1301 USA
23  *
24  */
25
26 #include <linux/delay.h>
27 #include <linux/gpio.h>
28 #include <linux/platform_device.h>
29 #include <sound/core.h>
30 #include <sound/pcm.h>
31 #include <sound/soc.h>
32 #include <sound/soc-dapm.h>
33
34 #include <asm/mach-types.h>
35
36 #include "omap-mcbsp.h"
37 #include "omap-pcm.h"
38 #include "../codecs/tlv320aic3x.h"
39
40 /*
41  * REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
42  * gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
43  */
44 #define RX51_SPEAKER_AMP_TWL_GPIO       (192 + 7)
45
46 static int rx51_spk_func;
47 static int rx51_dmic_func;
48
49 static void rx51_ext_control(struct snd_soc_codec *codec)
50 {
51         if (rx51_spk_func)
52                 snd_soc_dapm_enable_pin(codec, "Ext Spk");
53         else
54                 snd_soc_dapm_disable_pin(codec, "Ext Spk");
55         if (rx51_dmic_func)
56                 snd_soc_dapm_enable_pin(codec, "DMic");
57         else
58                 snd_soc_dapm_disable_pin(codec, "DMic");
59
60         snd_soc_dapm_sync(codec);
61 }
62
63 static int rx51_startup(struct snd_pcm_substream *substream)
64 {
65         struct snd_pcm_runtime *runtime = substream->runtime;
66         struct snd_soc_pcm_runtime *rtd = substream->private_data;
67         struct snd_soc_codec *codec = rtd->socdev->card->codec;
68
69         snd_pcm_hw_constraint_minmax(runtime,
70                                      SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
71         rx51_ext_control(codec);
72
73         return 0;
74 }
75
76 static int rx51_hw_params(struct snd_pcm_substream *substream,
77         struct snd_pcm_hw_params *params)
78 {
79         struct snd_soc_pcm_runtime *rtd = substream->private_data;
80         struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
81         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
82         int err;
83
84         /* Set codec DAI configuration */
85         err = snd_soc_dai_set_fmt(codec_dai,
86                                   SND_SOC_DAIFMT_DSP_A |
87                                   SND_SOC_DAIFMT_IB_NF |
88                                   SND_SOC_DAIFMT_CBM_CFM);
89         if (err < 0)
90                 return err;
91
92         /* Set cpu DAI configuration */
93         err = snd_soc_dai_set_fmt(cpu_dai,
94                                   SND_SOC_DAIFMT_DSP_A |
95                                   SND_SOC_DAIFMT_IB_NF |
96                                   SND_SOC_DAIFMT_CBM_CFM);
97         if (err < 0)
98                 return err;
99
100         /* Set the codec system clock for DAC and ADC */
101         return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
102                                       SND_SOC_CLOCK_IN);
103 }
104
105 static struct snd_soc_ops rx51_ops = {
106         .startup = rx51_startup,
107         .hw_params = rx51_hw_params,
108 };
109
110 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
111                         struct snd_ctl_elem_value *ucontrol)
112 {
113         ucontrol->value.integer.value[0] = rx51_spk_func;
114
115         return 0;
116 }
117
118 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
119                         struct snd_ctl_elem_value *ucontrol)
120 {
121         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
122
123         if (rx51_spk_func == ucontrol->value.integer.value[0])
124                 return 0;
125
126         rx51_spk_func = ucontrol->value.integer.value[0];
127         rx51_ext_control(codec);
128
129         return 1;
130 }
131
132 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
133                           struct snd_kcontrol *k, int event)
134 {
135         if (SND_SOC_DAPM_EVENT_ON(event))
136                 gpio_set_value(RX51_SPEAKER_AMP_TWL_GPIO, 1);
137         else
138                 gpio_set_value(RX51_SPEAKER_AMP_TWL_GPIO, 0);
139
140         return 0;
141 }
142
143 static int rx51_get_input(struct snd_kcontrol *kcontrol,
144                           struct snd_ctl_elem_value *ucontrol)
145 {
146         ucontrol->value.integer.value[0] = rx51_dmic_func;
147
148         return 0;
149 }
150
151 static int rx51_set_input(struct snd_kcontrol *kcontrol,
152                           struct snd_ctl_elem_value *ucontrol)
153 {
154         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
155
156         if (rx51_dmic_func == ucontrol->value.integer.value[0])
157                 return 0;
158
159         rx51_dmic_func = ucontrol->value.integer.value[0];
160         rx51_ext_control(codec);
161
162         return 1;
163 }
164
165 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
166         SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
167         SND_SOC_DAPM_MIC("DMic", NULL),
168 };
169
170 static const struct snd_soc_dapm_route audio_map[] = {
171         {"Ext Spk", NULL, "HPLOUT"},
172         {"Ext Spk", NULL, "HPROUT"},
173
174         {"DMic Rate 64", NULL, "Mic Bias 2V"},
175         {"Mic Bias 2V", NULL, "DMic"},
176 };
177
178 static const char *spk_function[] = {"Off", "On"};
179 static const char *input_function[] = {"ADC", "Digital Mic"};
180
181 static const struct soc_enum rx51_enum[] = {
182         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
183         SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
184 };
185
186 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
187         SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
188                      rx51_get_spk, rx51_set_spk),
189         SOC_ENUM_EXT("Input Select",  rx51_enum[1],
190                      rx51_get_input, rx51_set_input),
191 };
192
193 static int rx51_aic34_init(struct snd_soc_codec *codec)
194 {
195         int err;
196
197         /* Set up NC codec pins */
198         snd_soc_dapm_nc_pin(codec, "MIC3L");
199         snd_soc_dapm_nc_pin(codec, "MIC3R");
200         snd_soc_dapm_nc_pin(codec, "LINE1R");
201
202         /* Add RX-51 specific controls */
203         err = snd_soc_add_controls(codec, aic34_rx51_controls,
204                                    ARRAY_SIZE(aic34_rx51_controls));
205         if (err < 0)
206                 return err;
207
208         /* Add RX-51 specific widgets */
209         snd_soc_dapm_new_controls(codec, aic34_dapm_widgets,
210                                   ARRAY_SIZE(aic34_dapm_widgets));
211
212         /* Set up RX-51 specific audio path audio_map */
213         snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
214
215         snd_soc_dapm_sync(codec);
216
217         return 0;
218 }
219
220 /* Digital audio interface glue - connects codec <--> CPU */
221 static struct snd_soc_dai_link rx51_dai[] = {
222         {
223                 .name = "TLV320AIC34",
224                 .stream_name = "AIC34",
225                 .cpu_dai = &omap_mcbsp_dai[0],
226                 .codec_dai = &aic3x_dai,
227                 .init = rx51_aic34_init,
228                 .ops = &rx51_ops,
229         },
230 };
231
232 /* Audio private data */
233 static struct aic3x_setup_data rx51_aic34_setup = {
234         .gpio_func[0] = AIC3X_GPIO1_FUNC_DISABLED,
235         .gpio_func[1] = AIC3X_GPIO2_FUNC_DIGITAL_MIC_INPUT,
236 };
237
238 /* Audio card */
239 static struct snd_soc_card rx51_sound_card = {
240         .name = "RX-51",
241         .dai_link = rx51_dai,
242         .num_links = ARRAY_SIZE(rx51_dai),
243         .platform = &omap_soc_platform,
244 };
245
246 /* Audio subsystem */
247 static struct snd_soc_device rx51_snd_devdata = {
248         .card = &rx51_sound_card,
249         .codec_dev = &soc_codec_dev_aic3x,
250         .codec_data = &rx51_aic34_setup,
251 };
252
253 static struct platform_device *rx51_snd_device;
254
255 static int __init rx51_soc_init(void)
256 {
257         int err;
258
259         if (!machine_is_nokia_rx51())
260                 return -ENODEV;
261
262         rx51_snd_device = platform_device_alloc("soc-audio", -1);
263         if (!rx51_snd_device) {
264                 err = -ENOMEM;
265                 goto err1;
266         }
267
268         platform_set_drvdata(rx51_snd_device, &rx51_snd_devdata);
269         rx51_snd_devdata.dev = &rx51_snd_device->dev;
270         *(unsigned int *)rx51_dai[0].cpu_dai->private_data = 1; /* McBSP2 */
271
272         err = platform_device_add(rx51_snd_device);
273         if (err)
274                 goto err2;
275
276         return 0;
277 err2:
278         platform_device_put(rx51_snd_device);
279 err1:
280
281         return err;
282 }
283
284 static void __exit rx51_soc_exit(void)
285 {
286         platform_device_unregister(rx51_snd_device);
287 }
288
289 module_init(rx51_soc_init);
290 module_exit(rx51_soc_exit);
291
292 MODULE_AUTHOR("Nokia Corporation");
293 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
294 MODULE_LICENSE("GPL");