2 * rx51.c -- SoC audio for Nokia RX-51
4 * Copyright (C) 2008 - 2009 Nokia Corporation
6 * Contact: Peter Ujfalusi <peter.ujfalusi@nokia.com>
7 * Eduardo Valentin <eduardo.valentin@nokia.com>
8 * Jarkko Nikula <jhnikula@gmail.com>
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.
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.
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
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 <sound/soc-dapm.h>
34 #include <plat/mcbsp.h>
36 #include <asm/mach-types.h>
38 #include "omap-mcbsp.h"
40 #include "../codecs/tlv320aic3x.h"
42 #define RX51_TVOUT_SEL_GPIO 40
43 #define RX51_JACK_DETECT_GPIO 177
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
48 #define RX51_SPEAKER_AMP_TWL_GPIO (192 + 7)
52 RX51_JACK_TVOUT, /* tv-out */
55 static int rx51_spk_func;
56 static int rx51_dmic_func;
57 static int rx51_jack_func;
59 static void rx51_ext_control(struct snd_soc_codec *codec)
61 struct snd_soc_dapm_context *dapm = &codec->dapm;
64 snd_soc_dapm_enable_pin(dapm, "Ext Spk");
66 snd_soc_dapm_disable_pin(dapm, "Ext Spk");
68 snd_soc_dapm_enable_pin(dapm, "DMic");
70 snd_soc_dapm_disable_pin(dapm, "DMic");
72 gpio_set_value(RX51_TVOUT_SEL_GPIO,
73 rx51_jack_func == RX51_JACK_TVOUT);
75 snd_soc_dapm_sync(dapm);
78 static int rx51_startup(struct snd_pcm_substream *substream)
80 struct snd_pcm_runtime *runtime = substream->runtime;
81 struct snd_soc_pcm_runtime *rtd = substream->private_data;
82 struct snd_soc_codec *codec = rtd->codec;
84 snd_pcm_hw_constraint_minmax(runtime,
85 SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
86 rx51_ext_control(codec);
91 static int rx51_hw_params(struct snd_pcm_substream *substream,
92 struct snd_pcm_hw_params *params)
94 struct snd_soc_pcm_runtime *rtd = substream->private_data;
95 struct snd_soc_dai *codec_dai = rtd->codec_dai;
96 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
99 /* Set codec DAI configuration */
100 err = snd_soc_dai_set_fmt(codec_dai,
101 SND_SOC_DAIFMT_DSP_A |
102 SND_SOC_DAIFMT_IB_NF |
103 SND_SOC_DAIFMT_CBM_CFM);
107 /* Set cpu DAI configuration */
108 err = snd_soc_dai_set_fmt(cpu_dai,
109 SND_SOC_DAIFMT_DSP_A |
110 SND_SOC_DAIFMT_IB_NF |
111 SND_SOC_DAIFMT_CBM_CFM);
115 /* Set the codec system clock for DAC and ADC */
116 return snd_soc_dai_set_sysclk(codec_dai, 0, 19200000,
120 static struct snd_soc_ops rx51_ops = {
121 .startup = rx51_startup,
122 .hw_params = rx51_hw_params,
125 static int rx51_get_spk(struct snd_kcontrol *kcontrol,
126 struct snd_ctl_elem_value *ucontrol)
128 ucontrol->value.integer.value[0] = rx51_spk_func;
133 static int rx51_set_spk(struct snd_kcontrol *kcontrol,
134 struct snd_ctl_elem_value *ucontrol)
136 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
138 if (rx51_spk_func == ucontrol->value.integer.value[0])
141 rx51_spk_func = ucontrol->value.integer.value[0];
142 rx51_ext_control(codec);
147 static int rx51_spk_event(struct snd_soc_dapm_widget *w,
148 struct snd_kcontrol *k, int event)
150 if (SND_SOC_DAPM_EVENT_ON(event))
151 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 1);
153 gpio_set_value_cansleep(RX51_SPEAKER_AMP_TWL_GPIO, 0);
158 static int rx51_get_input(struct snd_kcontrol *kcontrol,
159 struct snd_ctl_elem_value *ucontrol)
161 ucontrol->value.integer.value[0] = rx51_dmic_func;
166 static int rx51_set_input(struct snd_kcontrol *kcontrol,
167 struct snd_ctl_elem_value *ucontrol)
169 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
171 if (rx51_dmic_func == ucontrol->value.integer.value[0])
174 rx51_dmic_func = ucontrol->value.integer.value[0];
175 rx51_ext_control(codec);
180 static int rx51_get_jack(struct snd_kcontrol *kcontrol,
181 struct snd_ctl_elem_value *ucontrol)
183 ucontrol->value.integer.value[0] = rx51_jack_func;
188 static int rx51_set_jack(struct snd_kcontrol *kcontrol,
189 struct snd_ctl_elem_value *ucontrol)
191 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
193 if (rx51_jack_func == ucontrol->value.integer.value[0])
196 rx51_jack_func = ucontrol->value.integer.value[0];
197 rx51_ext_control(codec);
202 static struct snd_soc_jack rx51_av_jack;
204 static struct snd_soc_jack_gpio rx51_av_jack_gpios[] = {
206 .gpio = RX51_JACK_DETECT_GPIO,
207 .name = "avdet-gpio",
208 .report = SND_JACK_VIDEOOUT,
210 .debounce_time = 200,
214 static const struct snd_soc_dapm_widget aic34_dapm_widgets[] = {
215 SND_SOC_DAPM_SPK("Ext Spk", rx51_spk_event),
216 SND_SOC_DAPM_MIC("DMic", NULL),
219 static const struct snd_soc_dapm_route audio_map[] = {
220 {"Ext Spk", NULL, "HPLOUT"},
221 {"Ext Spk", NULL, "HPROUT"},
223 {"DMic Rate 64", NULL, "Mic Bias 2V"},
224 {"Mic Bias 2V", NULL, "DMic"},
227 static const char *spk_function[] = {"Off", "On"};
228 static const char *input_function[] = {"ADC", "Digital Mic"};
229 static const char *jack_function[] = {"Off", "TV-OUT"};
231 static const struct soc_enum rx51_enum[] = {
232 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
233 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
234 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
237 static const struct snd_kcontrol_new aic34_rx51_controls[] = {
238 SOC_ENUM_EXT("Speaker Function", rx51_enum[0],
239 rx51_get_spk, rx51_set_spk),
240 SOC_ENUM_EXT("Input Select", rx51_enum[1],
241 rx51_get_input, rx51_set_input),
242 SOC_ENUM_EXT("Jack Function", rx51_enum[2],
243 rx51_get_jack, rx51_set_jack),
246 static int rx51_aic34_init(struct snd_soc_pcm_runtime *rtd)
248 struct snd_soc_codec *codec = rtd->codec;
249 struct snd_soc_dapm_context *dapm = &codec->dapm;
252 /* Set up NC codec pins */
253 snd_soc_dapm_nc_pin(dapm, "MIC3L");
254 snd_soc_dapm_nc_pin(dapm, "MIC3R");
255 snd_soc_dapm_nc_pin(dapm, "LINE1R");
257 /* Add RX-51 specific controls */
258 err = snd_soc_add_controls(codec, aic34_rx51_controls,
259 ARRAY_SIZE(aic34_rx51_controls));
263 /* Add RX-51 specific widgets */
264 snd_soc_dapm_new_controls(dapm, aic34_dapm_widgets,
265 ARRAY_SIZE(aic34_dapm_widgets));
267 /* Set up RX-51 specific audio path audio_map */
268 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
270 snd_soc_dapm_sync(dapm);
272 /* AV jack detection */
273 err = snd_soc_jack_new(codec, "AV Jack",
274 SND_JACK_VIDEOOUT, &rx51_av_jack);
277 err = snd_soc_jack_add_gpios(&rx51_av_jack,
278 ARRAY_SIZE(rx51_av_jack_gpios),
284 /* Digital audio interface glue - connects codec <--> CPU */
285 static struct snd_soc_dai_link rx51_dai[] = {
287 .name = "TLV320AIC34",
288 .stream_name = "AIC34",
289 .cpu_dai_name = "omap-mcbsp-dai.1",
290 .codec_dai_name = "tlv320aic3x-hifi",
291 .platform_name = "omap-pcm-audio",
292 .codec_name = "tlv320aic3x-codec.2-0018",
293 .init = rx51_aic34_init,
299 static struct snd_soc_card rx51_sound_card = {
301 .dai_link = rx51_dai,
302 .num_links = ARRAY_SIZE(rx51_dai),
305 static struct platform_device *rx51_snd_device;
307 static int __init rx51_soc_init(void)
311 if (!machine_is_nokia_rx51())
314 err = gpio_request(RX51_TVOUT_SEL_GPIO, "tvout_sel");
316 goto err_gpio_tvout_sel;
317 gpio_direction_output(RX51_TVOUT_SEL_GPIO, 0);
319 rx51_snd_device = platform_device_alloc("soc-audio", -1);
320 if (!rx51_snd_device) {
325 platform_set_drvdata(rx51_snd_device, &rx51_sound_card);
327 err = platform_device_add(rx51_snd_device);
333 platform_device_put(rx51_snd_device);
335 gpio_free(RX51_TVOUT_SEL_GPIO);
341 static void __exit rx51_soc_exit(void)
343 snd_soc_jack_free_gpios(&rx51_av_jack, ARRAY_SIZE(rx51_av_jack_gpios),
346 platform_device_unregister(rx51_snd_device);
347 gpio_free(RX51_TVOUT_SEL_GPIO);
350 module_init(rx51_soc_init);
351 module_exit(rx51_soc_exit);
353 MODULE_AUTHOR("Nokia Corporation");
354 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
355 MODULE_LICENSE("GPL");