ALSA: ASoC: update email address for Liam Girdwood
[linux-2.6.git] / sound / soc / pxa / spitz.c
1 /*
2  * spitz.c  --  SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
3  *
4  * Copyright 2005 Wolfson Microelectronics PLC.
5  * Copyright 2005 Openedhand Ltd.
6  *
7  * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
8  *          Richard Purdie <richard@openedhand.com>
9  *
10  *  This program is free software; you can redistribute  it and/or modify it
11  *  under  the terms of  the GNU General  Public License as published by the
12  *  Free Software Foundation;  either version 2 of the  License, or (at your
13  *  option) any later version.
14  *
15  */
16
17 #include <linux/module.h>
18 #include <linux/moduleparam.h>
19 #include <linux/timer.h>
20 #include <linux/interrupt.h>
21 #include <linux/platform_device.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/soc.h>
25 #include <sound/soc-dapm.h>
26
27 #include <asm/mach-types.h>
28 #include <asm/hardware/scoop.h>
29 #include <mach/pxa-regs.h>
30 #include <mach/hardware.h>
31 #include <mach/akita.h>
32 #include <mach/spitz.h>
33 #include "../codecs/wm8750.h"
34 #include "pxa2xx-pcm.h"
35 #include "pxa2xx-i2s.h"
36
37 #define SPITZ_HP        0
38 #define SPITZ_MIC       1
39 #define SPITZ_LINE      2
40 #define SPITZ_HEADSET   3
41 #define SPITZ_HP_OFF    4
42 #define SPITZ_SPK_ON    0
43 #define SPITZ_SPK_OFF   1
44
45  /* audio clock in Hz - rounded from 12.235MHz */
46 #define SPITZ_AUDIO_CLOCK 12288000
47
48 static int spitz_jack_func;
49 static int spitz_spk_func;
50
51 static void spitz_ext_control(struct snd_soc_codec *codec)
52 {
53         if (spitz_spk_func == SPITZ_SPK_ON)
54                 snd_soc_dapm_enable_pin(codec, "Ext Spk");
55         else
56                 snd_soc_dapm_disable_pin(codec, "Ext Spk");
57
58         /* set up jack connection */
59         switch (spitz_jack_func) {
60         case SPITZ_HP:
61                 /* enable and unmute hp jack, disable mic bias */
62                 snd_soc_dapm_disable_pin(codec, "Headset Jack");
63                 snd_soc_dapm_disable_pin(codec, "Mic Jack");
64                 snd_soc_dapm_disable_pin(codec, "Line Jack");
65                 snd_soc_dapm_enable_pin(codec, "Headphone Jack");
66                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
67                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
68                 break;
69         case SPITZ_MIC:
70                 /* enable mic jack and bias, mute hp */
71                 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
72                 snd_soc_dapm_disable_pin(codec, "Headset Jack");
73                 snd_soc_dapm_disable_pin(codec, "Line Jack");
74                 snd_soc_dapm_enable_pin(codec, "Mic Jack");
75                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
76                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
77                 break;
78         case SPITZ_LINE:
79                 /* enable line jack, disable mic bias and mute hp */
80                 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
81                 snd_soc_dapm_disable_pin(codec, "Headset Jack");
82                 snd_soc_dapm_disable_pin(codec, "Mic Jack");
83                 snd_soc_dapm_enable_pin(codec, "Line Jack");
84                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
85                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
86                 break;
87         case SPITZ_HEADSET:
88                 /* enable and unmute headset jack enable mic bias, mute L hp */
89                 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
90                 snd_soc_dapm_enable_pin(codec, "Mic Jack");
91                 snd_soc_dapm_disable_pin(codec, "Line Jack");
92                 snd_soc_dapm_enable_pin(codec, "Headset Jack");
93                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
94                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
95                 break;
96         case SPITZ_HP_OFF:
97
98                 /* jack removed, everything off */
99                 snd_soc_dapm_disable_pin(codec, "Headphone Jack");
100                 snd_soc_dapm_disable_pin(codec, "Headset Jack");
101                 snd_soc_dapm_disable_pin(codec, "Mic Jack");
102                 snd_soc_dapm_disable_pin(codec, "Line Jack");
103                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
104                 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
105                 break;
106         }
107         snd_soc_dapm_sync(codec);
108 }
109
110 static int spitz_startup(struct snd_pcm_substream *substream)
111 {
112         struct snd_soc_pcm_runtime *rtd = substream->private_data;
113         struct snd_soc_codec *codec = rtd->socdev->codec;
114
115         /* check the jack status at stream startup */
116         spitz_ext_control(codec);
117         return 0;
118 }
119
120 static int spitz_hw_params(struct snd_pcm_substream *substream,
121         struct snd_pcm_hw_params *params)
122 {
123         struct snd_soc_pcm_runtime *rtd = substream->private_data;
124         struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
125         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
126         unsigned int clk = 0;
127         int ret = 0;
128
129         switch (params_rate(params)) {
130         case 8000:
131         case 16000:
132         case 48000:
133         case 96000:
134                 clk = 12288000;
135                 break;
136         case 11025:
137         case 22050:
138         case 44100:
139                 clk = 11289600;
140                 break;
141         }
142
143         /* set codec DAI configuration */
144         ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
145                 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
146         if (ret < 0)
147                 return ret;
148
149         /* set cpu DAI configuration */
150         ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
151                 SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
152         if (ret < 0)
153                 return ret;
154
155         /* set the codec system clock for DAC and ADC */
156         ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
157                 SND_SOC_CLOCK_IN);
158         if (ret < 0)
159                 return ret;
160
161         /* set the I2S system clock as input (unused) */
162         ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
163                 SND_SOC_CLOCK_IN);
164         if (ret < 0)
165                 return ret;
166
167         return 0;
168 }
169
170 static struct snd_soc_ops spitz_ops = {
171         .startup = spitz_startup,
172         .hw_params = spitz_hw_params,
173 };
174
175 static int spitz_get_jack(struct snd_kcontrol *kcontrol,
176         struct snd_ctl_elem_value *ucontrol)
177 {
178         ucontrol->value.integer.value[0] = spitz_jack_func;
179         return 0;
180 }
181
182 static int spitz_set_jack(struct snd_kcontrol *kcontrol,
183         struct snd_ctl_elem_value *ucontrol)
184 {
185         struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
186
187         if (spitz_jack_func == ucontrol->value.integer.value[0])
188                 return 0;
189
190         spitz_jack_func = ucontrol->value.integer.value[0];
191         spitz_ext_control(codec);
192         return 1;
193 }
194
195 static int spitz_get_spk(struct snd_kcontrol *kcontrol,
196         struct snd_ctl_elem_value *ucontrol)
197 {
198         ucontrol->value.integer.value[0] = spitz_spk_func;
199         return 0;
200 }
201
202 static int spitz_set_spk(struct snd_kcontrol *kcontrol,
203         struct snd_ctl_elem_value *ucontrol)
204 {
205         struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);
206
207         if (spitz_spk_func == ucontrol->value.integer.value[0])
208                 return 0;
209
210         spitz_spk_func = ucontrol->value.integer.value[0];
211         spitz_ext_control(codec);
212         return 1;
213 }
214
215 static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
216         struct snd_kcontrol *k, int event)
217 {
218         if (machine_is_borzoi() || machine_is_spitz()) {
219                 if (SND_SOC_DAPM_EVENT_ON(event))
220                         set_scoop_gpio(&spitzscoop2_device.dev,
221                                 SPITZ_SCP2_MIC_BIAS);
222                 else
223                         reset_scoop_gpio(&spitzscoop2_device.dev,
224                                 SPITZ_SCP2_MIC_BIAS);
225         }
226
227         if (machine_is_akita()) {
228                 if (SND_SOC_DAPM_EVENT_ON(event))
229                         akita_set_ioexp(&akitaioexp_device.dev,
230                                 AKITA_IOEXP_MIC_BIAS);
231                 else
232                         akita_reset_ioexp(&akitaioexp_device.dev,
233                                 AKITA_IOEXP_MIC_BIAS);
234         }
235         return 0;
236 }
237
238 /* spitz machine dapm widgets */
239 static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
240         SND_SOC_DAPM_HP("Headphone Jack", NULL),
241         SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
242         SND_SOC_DAPM_SPK("Ext Spk", NULL),
243         SND_SOC_DAPM_LINE("Line Jack", NULL),
244
245         /* headset is a mic and mono headphone */
246         SND_SOC_DAPM_HP("Headset Jack", NULL),
247 };
248
249 /* Spitz machine audio_map */
250 static const struct snd_soc_dapm_route audio_map[] = {
251
252         /* headphone connected to LOUT1, ROUT1 */
253         {"Headphone Jack", NULL, "LOUT1"},
254         {"Headphone Jack", NULL, "ROUT1"},
255
256         /* headset connected to ROUT1 and LINPUT1 with bias (def below) */
257         {"Headset Jack", NULL, "ROUT1"},
258
259         /* ext speaker connected to LOUT2, ROUT2  */
260         {"Ext Spk", NULL , "ROUT2"},
261         {"Ext Spk", NULL , "LOUT2"},
262
263         /* mic is connected to input 1 - with bias */
264         {"LINPUT1", NULL, "Mic Bias"},
265         {"Mic Bias", NULL, "Mic Jack"},
266
267         /* line is connected to input 1 - no bias */
268         {"LINPUT1", NULL, "Line Jack"},
269 };
270
271 static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
272         "Off"};
273 static const char *spk_function[] = {"On", "Off"};
274 static const struct soc_enum spitz_enum[] = {
275         SOC_ENUM_SINGLE_EXT(5, jack_function),
276         SOC_ENUM_SINGLE_EXT(2, spk_function),
277 };
278
279 static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
280         SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
281                 spitz_set_jack),
282         SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
283                 spitz_set_spk),
284 };
285
286 /*
287  * Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device
288  */
289 static int spitz_wm8750_init(struct snd_soc_codec *codec)
290 {
291         int i, err;
292
293         /* NC codec pins */
294         snd_soc_dapm_nc_pin(codec, "RINPUT1");
295         snd_soc_dapm_nc_pin(codec, "LINPUT2");
296         snd_soc_dapm_nc_pin(codec, "RINPUT2");
297         snd_soc_dapm_nc_pin(codec, "LINPUT3");
298         snd_soc_dapm_nc_pin(codec, "RINPUT3");
299         snd_soc_dapm_nc_pin(codec, "OUT3");
300         snd_soc_dapm_nc_pin(codec, "MONO1");
301
302         /* Add spitz specific controls */
303         for (i = 0; i < ARRAY_SIZE(wm8750_spitz_controls); i++) {
304                 err = snd_ctl_add(codec->card,
305                         snd_soc_cnew(&wm8750_spitz_controls[i], codec, NULL));
306                 if (err < 0)
307                         return err;
308         }
309
310         /* Add spitz specific widgets */
311         snd_soc_dapm_new_controls(codec, wm8750_dapm_widgets,
312                                   ARRAY_SIZE(wm8750_dapm_widgets));
313
314         /* Set up spitz specific audio paths */
315         snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
316
317         snd_soc_dapm_sync(codec);
318         return 0;
319 }
320
321 /* spitz digital audio interface glue - connects codec <--> CPU */
322 static struct snd_soc_dai_link spitz_dai = {
323         .name = "wm8750",
324         .stream_name = "WM8750",
325         .cpu_dai = &pxa_i2s_dai,
326         .codec_dai = &wm8750_dai,
327         .init = spitz_wm8750_init,
328         .ops = &spitz_ops,
329 };
330
331 /* spitz audio machine driver */
332 static struct snd_soc_machine snd_soc_machine_spitz = {
333         .name = "Spitz",
334         .dai_link = &spitz_dai,
335         .num_links = 1,
336 };
337
338 /* spitz audio private data */
339 static struct wm8750_setup_data spitz_wm8750_setup = {
340         .i2c_bus = 0,
341         .i2c_address = 0x1b,
342 };
343
344 /* spitz audio subsystem */
345 static struct snd_soc_device spitz_snd_devdata = {
346         .machine = &snd_soc_machine_spitz,
347         .platform = &pxa2xx_soc_platform,
348         .codec_dev = &soc_codec_dev_wm8750,
349         .codec_data = &spitz_wm8750_setup,
350 };
351
352 static struct platform_device *spitz_snd_device;
353
354 static int __init spitz_init(void)
355 {
356         int ret;
357
358         if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita()))
359                 return -ENODEV;
360
361         spitz_snd_device = platform_device_alloc("soc-audio", -1);
362         if (!spitz_snd_device)
363                 return -ENOMEM;
364
365         platform_set_drvdata(spitz_snd_device, &spitz_snd_devdata);
366         spitz_snd_devdata.dev = &spitz_snd_device->dev;
367         ret = platform_device_add(spitz_snd_device);
368
369         if (ret)
370                 platform_device_put(spitz_snd_device);
371
372         return ret;
373 }
374
375 static void __exit spitz_exit(void)
376 {
377         platform_device_unregister(spitz_snd_device);
378 }
379
380 module_init(spitz_init);
381 module_exit(spitz_exit);
382
383 MODULE_AUTHOR("Richard Purdie");
384 MODULE_DESCRIPTION("ALSA SoC Spitz");
385 MODULE_LICENSE("GPL");