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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@ti.com>
7 * Eduardo Valentin <eduardo.valentin@nokia.com>
8 * Jarkko Nikula <jarkko.nikula@bitmer.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/jack.h>
31#include <sound/pcm.h>
32#include <sound/soc.h>
33#include <plat/mcbsp.h>
34#include "../codecs/tpa6130a2.h"
35
36#include <asm/mach-types.h>
37
38#include "omap-mcbsp.h"
39#include "omap-pcm.h"
40
41#define RX51_TVOUT_SEL_GPIO 40
42#define RX51_JACK_DETECT_GPIO 177
43#define RX51_ECI_SW_GPIO 182
44/*
45 * REVISIT: TWL4030 GPIO base in RX-51. Now statically defined to 192. This
46 * gpio is reserved in arch/arm/mach-omap2/board-rx51-peripherals.c
47 */
48#define RX51_SPEAKER_AMP_TWL_GPIO (192 + 7)
49
50enum {
51 RX51_JACK_DISABLED,
52 RX51_JACK_TVOUT, /* tv-out with stereo output */
53 RX51_JACK_HP, /* headphone: stereo output, no mic */
54 RX51_JACK_HS, /* headset: stereo output with mic */
55};
56
57static int rx51_spk_func;
58static int rx51_dmic_func;
59static int rx51_jack_func;
60
61static void rx51_ext_control(struct snd_soc_codec *codec)
62{
63 struct snd_soc_dapm_context *dapm = &codec->dapm;
64 int hp = 0, hs = 0, tvout = 0;
65
66 switch (rx51_jack_func) {
67 case RX51_JACK_TVOUT:
68 tvout = 1;
69 hp = 1;
70 break;
71 case RX51_JACK_HS:
72 hs = 1;
73 case RX51_JACK_HP:
74 hp = 1;
75 break;
76 }
77
78 if (rx51_spk_func)
79 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
80 else
81 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
82 if (rx51_dmic_func)
83 snd_soc_dapm_enable_pin(dapm, "DMic");
84 else
85 snd_soc_dapm_disable_pin(dapm, "DMic");
86 if (hp)
87 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
88 else
89 snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
90 if (hs)
91 snd_soc_dapm_enable_pin(dapm, "HS Mic");
92 else
93 snd_soc_dapm_disable_pin(dapm, "HS Mic");
94
95 gpio_set_value(RX51_TVOUT_SEL_GPIO, tvout);
96
97 snd_soc_dapm_sync(dapm);
98}
99
100static int rx51_startup(struct snd_pcm_substream *substream)
101{
102 struct snd_pcm_runtime *runtime = substream->runtime;
103 struct snd_soc_pcm_runtime *rtd = substream->private_data;
104 struct snd_soc_codec *codec = rtd->codec;
105
106 snd_pcm_hw_constraint_minmax(runtime,
107 SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
108 rx51_ext_control(codec);
109
110 return 0;
111}
112
113static int rx51_hw_params(struct snd_pcm_substream *substream,
114 struct snd_pcm_hw_params *params)
115{
116 struct snd_soc_pcm_runtime *rtd = substream->private_data;
117 struct snd_soc_dai *codec_dai = rtd->codec_dai;
118 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
119 int err;
120
121 /* Set codec DAI configuration */
122 err = snd_soc_dai_set_fmt(codec_dai,
123 SND_SOC_DAIFMT_DSP_A |
124 SND_SOC_DAIFMT_IB_NF |
125 SND_SOC_DAIFMT_CBM_CFM);
126 if (err < 0)
127 return err;
128
129 /* Set cpu DAI configuration */
130 err = snd_soc_dai_set_fmt(cpu_dai,
131 SND_SOC_DAIFMT_DSP_A |
132 SND_SOC_DAIFMT_IB_NF |
133 SND_SOC_DAIFMT_CBM_CFM);
134 if (err < 0)
135 return err;
136
137 /* Set the codec system clock for DAC and ADC */
138 return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
139 SND_SOC_CLOCK_IN);
140}
141
142static struct snd_soc_ops rx51_ops = {
143 .startup = rx51_startup,
144 .hw_params = rx51_hw_params,
145};
146
147static int rx51_get_spk(struct snd_kcontrol *kcontrol,
148 struct snd_ctl_elem_value *ucontrol)
149{
150 ucontrol->value.integer.value[0] = rx51_spk_func;
151
152 return 0;
153}
154
155static int rx51_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 (rx51_spk_func == ucontrol->value.integer.value[0])
161 return 0;
162
163 rx51_spk_func = ucontrol->value.integer.value[0];
164 rx51_ext_control(codec);
165
166 return 1;
167}
168
169static int rx51_spk_event(struct snd_soc_dapm_widget *w,
170 struct snd_kcontrol *k, int event)
171{
172 if (SND_SOC_DAPM_EVENT_ON(event))
173 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
174 else
175 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
176
177 return 0;
178}
179
180static int rx51_hp_event(struct snd_soc_dapm_widget *w,
181 struct snd_kcontrol *k, int event)
182{
183 struct snd_soc_codec *codec = w->dapm->codec;
184
185 if (SND_SOC_DAPM_EVENT_ON(event))
186 tpa6130a2_stereo_enable(codec, 1);
187 else
188 tpa6130a2_stereo_enable(codec, 0);
189
190 return 0;
191}
192
193static int rx51_get_input(struct snd_kcontrol *kcontrol,
194 struct snd_ctl_elem_value *ucontrol)
195{
196 ucontrol->value.integer.value[0] = rx51_dmic_func;
197
198 return 0;
199}
200
201static int rx51_set_input(struct snd_kcontrol *kcontrol,
202 struct snd_ctl_elem_value *ucontrol)
203{
204 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
205
206 if (rx51_dmic_func == ucontrol->value.integer.value[0])
207 return 0;
208
209 rx51_dmic_func = ucontrol->value.integer.value[0];
210 rx51_ext_control(codec);
211
212 return 1;
213}
214
215static int rx51_get_jack(struct snd_kcontrol *kcontrol,
216 struct snd_ctl_elem_value *ucontrol)
217{
218 ucontrol->value.integer.value[0] = rx51_jack_func;
219
220 return 0;
221}
222
223static int rx51_set_jack(struct snd_kcontrol *kcontrol,
224 struct snd_ctl_elem_value *ucontrol)
225{
226 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
227
228 if (rx51_jack_func == ucontrol->value.integer.value[0])
229 return 0;
230
231 rx51_jack_func = ucontrol->value.integer.value[0];
232 rx51_ext_control(codec);
233
234 return 1;
235}
236
237static struct snd_soc_jack rx51_av_jack;
238
239static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
240 {
241 .gpio = RX51_JACK_DETECT_GPIO,
242 .name = "avdet-gpio",
243 .report = SND_JACK_HEADSET,
244 .invert = 1,
245 .debounce_time = 200,
246 },
247};
248
249static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
250 SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
251 SND_SOC_DAPM_MIC("DMic", NULL),
252 SND_SOC_DAPM_HP("Headphone Jack", rx51_hp_event),
253 SND_SOC_DAPM_MIC("HS Mic", NULL),
254 SND_SOC_DAPM_LINE("FM Transmitter", NULL),
255};
256
257static const struct snd_soc_dapm_widget aic34_dapm_widgetsb[] = {
258 SND_SOC_DAPM_SPK("Earphone", NULL),
259};
260
261static const struct snd_soc_dapm_route audio_map[] = {
262 {"Ext Spk", NULL, "HPLOUT"},
263 {"Ext Spk", NULL, "HPROUT"},
264 {"Headphone Jack", NULL, "LLOUT"},
265 {"Headphone Jack", NULL, "RLOUT"},
266 {"FM Transmitter", NULL, "LLOUT"},
267 {"FM Transmitter", NULL, "RLOUT"},
268
269 {"DMic Rate 64", NULL, "Mic Bias 2V"},
270 {"Mic Bias 2V", NULL, "DMic"},
271};
272
273static const struct snd_soc_dapm_route audio_mapb[] = {
274 {"b LINE2R", NULL, "MONO_LOUT"},
275 {"Earphone", NULL, "b HPLOUT"},
276
277 {"LINE1L", NULL, "b Mic Bias 2.5V"},
278 {"b Mic Bias 2.5V", NULL, "HS Mic"}
279};
280
281static const char *spk_function[] = {"Off", "On"};
282static const char *input_function[] = {"ADC", "Digital Mic"};
283static const char *jack_function[] = {"Off", "TV-OUT", "Headphone", "Headset"};
284
285static const struct soc_enum rx51_enum[] = {
286 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
287 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
288 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
289};
290
291static const struct snd_kcontrol_new aic34_rx51_controls[] = {
292 SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
293 rx51_get_spk, rx51_set_spk),
294 SOC_ENUM_EXT("Input Select", rx51_enum[1],
295 rx51_get_input, rx51_set_input),
296 SOC_ENUM_EXT("Jack Function", rx51_enum[2],
297 rx51_get_jack, rx51_set_jack),
298 SOC_DAPM_PIN_SWITCH("FM Transmitter"),
299};
300
301static const struct snd_kcontrol_new aic34_rx51_controlsb[] = {
302 SOC_DAPM_PIN_SWITCH("Earphone"),
303};
304
305static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
306{
307 struct snd_soc_codec *codec = rtd->codec;
308 struct snd_soc_dapm_context *dapm = &codec->dapm;
309 int err;
310
311 /* Set up NC codec pins */
312 snd_soc_dapm_nc_pin(dapm, "MIC3L");
313 snd_soc_dapm_nc_pin(dapm, "MIC3R");
314 snd_soc_dapm_nc_pin(dapm, "LINE1R");
315
316 /* Add RX-51 specific controls */
317 err = snd_soc_add_controls(codec, aic34_rx51_controls,
318 ARRAY_SIZE(aic34_rx51_controls));
319 if (err < 0)
320 return err;
321
322 /* Add RX-51 specific widgets */
323 snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
324 ARRAY_SIZE(aic34_dapm_widgets));
325
326 /* Set up RX-51 specific audio path audio_map */
327 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
328
329 err = tpa6130a2_add_controls(codec);
330 if (err < 0)
331 return err;
332 snd_soc_limit_volume(codec, "TPA6130A2 Headphone Playback Volume", 42);
333
334 err = omap_mcbsp_st_add_controls(codec, 1);
335 if (err < 0)
336 return err;
337
338 snd_soc_dapm_sync(dapm);
339
340 /* AV jack detection */
341 err = snd_soc_jack_new(codec, "AV Jack",
342 SND_JACK_HEADSET | SND_JACK_VIDEOOUT,
343 &rx51_av_jack);
344 if (err)
345 return err;
346 err = snd_soc_jack_add_gpios(&rx51_av_jack,
347 ARRAY_SIZE(rx51_av_jack_gpios),
348 rx51_av_jack_gpios);
349
350 return err;
351}
352
353static int rx51_aic34b_init(struct snd_soc_dapm_context *dapm)
354{
355 int err;
356
357 err = snd_soc_add_controls(dapm->codec, aic34_rx51_controlsb,
358 ARRAY_SIZE(aic34_rx51_controlsb));
359 if (err < 0)
360 return err;
361
362 err = snd_soc_dapm_new_controls(dapm, aic34_dapm_widgetsb,
363 ARRAY_SIZE(aic34_dapm_widgetsb));
364 if (err < 0)
365 return 0;
366
367 return snd_soc_dapm_add_routes(dapm, audio_mapb,
368 ARRAY_SIZE(audio_mapb));
369}
370
371/* Digital audio interface glue - connects codec <--> CPU */
372static struct snd_soc_dai_link rx51_dai[] = {
373 {
374 .name = "TLV320AIC34",
375 .stream_name = "AIC34",
376 .cpu_dai_name = "omap-mcbsp-dai.1",
377 .codec_dai_name = "tlv320aic3x-hifi",
378 .platform_name = "omap-pcm-audio",
379 .codec_name = "tlv320aic3x-codec.2-0018",
380 .init = rx51_aic34_init,
381 .ops = &rx51_ops,
382 },
383};
384
385struct snd_soc_aux_dev rx51_aux_dev[] = {
386 {
387 .name = "TLV320AIC34b",
388 .codec_name = "tlv320aic3x-codec.2-0019",
389 .init = rx51_aic34b_init,
390 },
391};
392
393static struct snd_soc_codec_conf rx51_codec_conf[] = {
394 {
395 .dev_name = "tlv320aic3x-codec.2-0019",
396 .name_prefix = "b",
397 },
398};
399
400/* Audio card */
401static struct snd_soc_card rx51_sound_card = {
402 .name = "RX-51",
403 .dai_link = rx51_dai,
404 .num_links = ARRAY_SIZE(rx51_dai),
405 .aux_dev = rx51_aux_dev,
406 .num_aux_devs = ARRAY_SIZE(rx51_aux_dev),
407 .codec_conf = rx51_codec_conf,
408 .num_configs = ARRAY_SIZE(rx51_codec_conf),
409};
410
411static struct platform_device *rx51_snd_device;
412
413static int __init rx51_soc_init(void)
414{
415 int err;
416
417 if (!machine_is_nokia_rx51())
418 return -ENODEV;
419
420 err = gpio_request_one(RX51_TVOUT_SEL_GPIO,
421 GPIOF_DIR_OUT | GPIOF_INIT_LOW, "tvout_sel");
422 if (err)
423 goto err_gpio_tvout_sel;
424 err = gpio_request_one(RX51_ECI_SW_GPIO,
425 GPIOF_DIR_OUT | GPIOF_INIT_HIGH, "eci_sw");
426 if (err)
427 goto err_gpio_eci_sw;
428
429 rx51_snd_device = platform_device_alloc("soc-audio", -1);
430 if (!rx51_snd_device) {
431 err = -ENOMEM;
432 goto err1;
433 }
434
435 platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
436
437 err = platform_device_add(rx51_snd_device);
438 if (err)
439 goto err2;
440
441 return 0;
442err2:
443 platform_device_put(rx51_snd_device);
444err1:
445 gpio_free(RX51_ECI_SW_GPIO);
446err_gpio_eci_sw:
447 gpio_free(RX51_TVOUT_SEL_GPIO);
448err_gpio_tvout_sel:
449
450 return err;
451}
452
453static void __exit rx51_soc_exit(void)
454{
455 snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
456 rx51_av_jack_gpios);
457
458 platform_device_unregister(rx51_snd_device);
459 gpio_free(RX51_ECI_SW_GPIO);
460 gpio_free(RX51_TVOUT_SEL_GPIO);
461}
462
463module_init(rx51_soc_init);
464module_exit(rx51_soc_exit);
465
466MODULE_AUTHOR("Nokia Corporation");
467MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
468MODULE_LICENSE("GPL");