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-rw-r--r--sound/soc/pxa/spitz.c374
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diff --git a/sound/soc/pxa/spitz.c b/sound/soc/pxa/spitz.c
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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 <liam.girdwood@wolfsonmicro.com>
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 * Revision history
16 * 30th Nov 2005 Initial version.
17 *
18 */
19
20#include <linux/module.h>
21#include <linux/moduleparam.h>
22#include <linux/timer.h>
23#include <linux/interrupt.h>
24#include <linux/platform_device.h>
25#include <sound/driver.h>
26#include <sound/core.h>
27#include <sound/pcm.h>
28#include <sound/soc.h>
29#include <sound/soc-dapm.h>
30
31#include <asm/mach-types.h>
32#include <asm/hardware/scoop.h>
33#include <asm/arch/pxa-regs.h>
34#include <asm/arch/hardware.h>
35#include <asm/arch/akita.h>
36#include <asm/arch/spitz.h>
37#include <asm/mach-types.h>
38#include "../codecs/wm8750.h"
39#include "pxa2xx-pcm.h"
40
41#define SPITZ_HP 0
42#define SPITZ_MIC 1
43#define SPITZ_LINE 2
44#define SPITZ_HEADSET 3
45#define SPITZ_HP_OFF 4
46#define SPITZ_SPK_ON 0
47#define SPITZ_SPK_OFF 1
48
49 /* audio clock in Hz - rounded from 12.235MHz */
50#define SPITZ_AUDIO_CLOCK 12288000
51
52static int spitz_jack_func;
53static int spitz_spk_func;
54
55static void spitz_ext_control(struct snd_soc_codec *codec)
56{
57 if (spitz_spk_func == SPITZ_SPK_ON)
58 snd_soc_dapm_set_endpoint(codec, "Ext Spk", 1);
59 else
60 snd_soc_dapm_set_endpoint(codec, "Ext Spk", 0);
61
62 /* set up jack connection */
63 switch (spitz_jack_func) {
64 case SPITZ_HP:
65 /* enable and unmute hp jack, disable mic bias */
66 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
67 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
68 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
69 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 1);
70 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
71 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
72 break;
73 case SPITZ_MIC:
74 /* enable mic jack and bias, mute hp */
75 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
76 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
77 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
78 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1);
79 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
80 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
81 break;
82 case SPITZ_LINE:
83 /* enable line jack, disable mic bias and mute hp */
84 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
85 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
86 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
87 snd_soc_dapm_set_endpoint(codec, "Line Jack", 1);
88 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
89 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
90 break;
91 case SPITZ_HEADSET:
92 /* enable and unmute headset jack enable mic bias, mute L hp */
93 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
94 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1);
95 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
96 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 1);
97 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
98 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
99 break;
100 case SPITZ_HP_OFF:
101
102 /* jack removed, everything off */
103 snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0);
104 snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0);
105 snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0);
106 snd_soc_dapm_set_endpoint(codec, "Line Jack", 0);
107 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L);
108 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R);
109 break;
110 }
111 snd_soc_dapm_sync_endpoints(codec);
112}
113
114static int spitz_startup(struct snd_pcm_substream *substream)
115{
116 struct snd_soc_pcm_runtime *rtd = substream->private_data;
117 struct snd_soc_codec *codec = rtd->socdev->codec;
118
119 /* check the jack status at stream startup */
120 spitz_ext_control(codec);
121 return 0;
122}
123
124static struct snd_soc_ops spitz_ops = {
125 .startup = spitz_startup,
126};
127
128static int spitz_get_jack(struct snd_kcontrol *kcontrol,
129 struct snd_ctl_elem_value *ucontrol)
130{
131 ucontrol->value.integer.value[0] = spitz_jack_func;
132 return 0;
133}
134
135static int spitz_set_jack(struct snd_kcontrol *kcontrol,
136 struct snd_ctl_elem_value *ucontrol)
137{
138 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
139
140 if (spitz_jack_func == ucontrol->value.integer.value[0])
141 return 0;
142
143 spitz_jack_func = ucontrol->value.integer.value[0];
144 spitz_ext_control(codec);
145 return 1;
146}
147
148static int spitz_get_spk(struct snd_kcontrol *kcontrol,
149 struct snd_ctl_elem_value *ucontrol)
150{
151 ucontrol->value.integer.value[0] = spitz_spk_func;
152 return 0;
153}
154
155static int spitz_set_spk(struct snd_kcontrol *kcontrol,
156 struct snd_ctl_elem_value *ucontrol)
157{
158 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
159
160 if (spitz_spk_func == ucontrol->value.integer.value[0])
161 return 0;
162
163 spitz_spk_func = ucontrol->value.integer.value[0];
164 spitz_ext_control(codec);
165 return 1;
166}
167
168static int spitz_mic_bias(struct snd_soc_dapm_widget *w, int event)
169{
170 if (machine_is_borzoi() || machine_is_spitz()) {
171 if (SND_SOC_DAPM_EVENT_ON(event))
172 set_scoop_gpio(&spitzscoop2_device.dev,
173 SPITZ_SCP2_MIC_BIAS);
174 else
175 reset_scoop_gpio(&spitzscoop2_device.dev,
176 SPITZ_SCP2_MIC_BIAS);
177 }
178
179 if (machine_is_akita()) {
180 if (SND_SOC_DAPM_EVENT_ON(event))
181 akita_set_ioexp(&akitaioexp_device.dev,
182 AKITA_IOEXP_MIC_BIAS);
183 else
184 akita_reset_ioexp(&akitaioexp_device.dev,
185 AKITA_IOEXP_MIC_BIAS);
186 }
187 return 0;
188}
189
190/* spitz machine dapm widgets */
191static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
192 SND_SOC_DAPM_HP("Headphone Jack", NULL),
193 SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
194 SND_SOC_DAPM_SPK("Ext Spk", NULL),
195 SND_SOC_DAPM_LINE("Line Jack", NULL),
196
197 /* headset is a mic and mono headphone */
198 SND_SOC_DAPM_HP("Headset Jack", NULL),
199};
200
201/* Spitz machine audio_map */
202static const char *audio_map[][3] = {
203
204 /* headphone connected to LOUT1, ROUT1 */
205 {"Headphone Jack", NULL, "LOUT1"},
206 {"Headphone Jack", NULL, "ROUT1"},
207
208 /* headset connected to ROUT1 and LINPUT1 with bias (def below) */
209 {"Headset Jack", NULL, "ROUT1"},
210
211 /* ext speaker connected to LOUT2, ROUT2 */
212 {"Ext Spk", NULL , "ROUT2"},
213 {"Ext Spk", NULL , "LOUT2"},
214
215 /* mic is connected to input 1 - with bias */
216 {"LINPUT1", NULL, "Mic Bias"},
217 {"Mic Bias", NULL, "Mic Jack"},
218
219 /* line is connected to input 1 - no bias */
220 {"LINPUT1", NULL, "Line Jack"},
221
222 {NULL, NULL, NULL},
223};
224
225static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
226 "Off"};
227static const char *spk_function[] = {"On", "Off"};
228static const struct soc_enum spitz_enum[] = {
229 SOC_ENUM_SINGLE_EXT(5, jack_function),
230 SOC_ENUM_SINGLE_EXT(2, spk_function),
231};
232
233static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
234 SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
235 spitz_set_jack),
236 SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
237 spitz_set_spk),
238};
239
240/*
241 * Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device
242 */
243static int spitz_wm8750_init(struct snd_soc_codec *codec)
244{
245 int i, err;
246
247 /* NC codec pins */
248 snd_soc_dapm_set_endpoint(codec, "RINPUT1", 0);
249 snd_soc_dapm_set_endpoint(codec, "LINPUT2", 0);
250 snd_soc_dapm_set_endpoint(codec, "RINPUT2", 0);
251 snd_soc_dapm_set_endpoint(codec, "LINPUT3", 0);
252 snd_soc_dapm_set_endpoint(codec, "RINPUT3", 0);
253 snd_soc_dapm_set_endpoint(codec, "OUT3", 0);
254 snd_soc_dapm_set_endpoint(codec, "MONO", 0);
255
256 /* Add spitz specific controls */
257 for (i = 0; i < ARRAY_SIZE(wm8750_spitz_controls); i++) {
258 err = snd_ctl_add(codec->card,
259 snd_soc_cnew(&wm8750_spitz_controls[i], codec, NULL));
260 if (err < 0)
261 return err;
262 }
263
264 /* Add spitz specific widgets */
265 for (i = 0; i < ARRAY_SIZE(wm8750_dapm_widgets); i++) {
266 snd_soc_dapm_new_control(codec, &wm8750_dapm_widgets[i]);
267 }
268
269 /* Set up spitz specific audio path audio_map */
270 for (i = 0; audio_map[i][0] != NULL; i++) {
271 snd_soc_dapm_connect_input(codec, audio_map[i][0],
272 audio_map[i][1], audio_map[i][2]);
273 }
274
275 snd_soc_dapm_sync_endpoints(codec);
276 return 0;
277}
278
279static unsigned int spitz_config_sysclk(struct snd_soc_pcm_runtime *rtd,
280 struct snd_soc_clock_info *info)
281{
282 if (info->bclk_master & SND_SOC_DAIFMT_CBS_CFS) {
283 /* pxa2xx is i2s master */
284 switch (info->rate) {
285 case 11025:
286 case 22050:
287 case 44100:
288 case 88200:
289 /* configure codec digital filters
290 * for 11.025, 22.05, 44.1, 88.2 */
291 rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
292 11289600);
293 break;
294 default:
295 /* configure codec digital filters for all other rates */
296 rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
297 SPITZ_AUDIO_CLOCK);
298 break;
299 }
300 /* configure pxa2xx i2s interface clocks as master */
301 return rtd->cpu_dai->config_sysclk(rtd->cpu_dai, info,
302 SPITZ_AUDIO_CLOCK);
303 } else {
304 /* codec is i2s master - only configure codec DAI clock */
305 return rtd->codec_dai->config_sysclk(rtd->codec_dai, info,
306 SPITZ_AUDIO_CLOCK);
307 }
308}
309
310/* spitz digital audio interface glue - connects codec <--> CPU */
311static struct snd_soc_dai_link spitz_dai = {
312 .name = "wm8750",
313 .stream_name = "WM8750",
314 .cpu_dai = &pxa_i2s_dai,
315 .codec_dai = &wm8750_dai,
316 .init = spitz_wm8750_init,
317 .config_sysclk = spitz_config_sysclk,
318};
319
320/* spitz audio machine driver */
321static struct snd_soc_machine snd_soc_machine_spitz = {
322 .name = "Spitz",
323 .dai_link = &spitz_dai,
324 .num_links = 1,
325 .ops = &spitz_ops,
326};
327
328/* spitz audio private data */
329static struct wm8750_setup_data spitz_wm8750_setup = {
330 .i2c_address = 0x1b,
331};
332
333/* spitz audio subsystem */
334static struct snd_soc_device spitz_snd_devdata = {
335 .machine = &snd_soc_machine_spitz,
336 .platform = &pxa2xx_soc_platform,
337 .codec_dev = &soc_codec_dev_wm8750,
338 .codec_data = &spitz_wm8750_setup,
339};
340
341static struct platform_device *spitz_snd_device;
342
343static int __init spitz_init(void)
344{
345 int ret;
346
347 if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita()))
348 return -ENODEV;
349
350 spitz_snd_device = platform_device_alloc("soc-audio", -1);
351 if (!spitz_snd_device)
352 return -ENOMEM;
353
354 platform_set_drvdata(spitz_snd_device, &spitz_snd_devdata);
355 spitz_snd_devdata.dev = &spitz_snd_device->dev;
356 ret = platform_device_add(spitz_snd_device);
357
358 if (ret)
359 platform_device_put(spitz_snd_device);
360
361 return ret;
362}
363
364static void __exit spitz_exit(void)
365{
366 platform_device_unregister(spitz_snd_device);
367}
368
369module_init(spitz_init);
370module_exit(spitz_exit);
371
372MODULE_AUTHOR("Richard Purdie");
373MODULE_DESCRIPTION("ALSA SoC Spitz");
374MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-13 17:06:37 -0500