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/pcm.h>
31 #include <sound/soc.h>
32 #include <sound/soc-dapm.h>
34 #include <asm/mach-types.h>
36 #include "omap-mcbsp.h"
38 #include "../codecs/tlv320aic3x.h"
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
44 #define RX51_SPEAKER_AMP_TWL_GPIO (192 + 7)
46 static int rx51_spk_func
;
47 static int rx51_dmic_func
;
49 static void rx51_ext_control(struct snd_soc_codec
*codec
)
52 snd_soc_dapm_enable_pin(codec
, "Ext Spk");
54 snd_soc_dapm_disable_pin(codec
, "Ext Spk");
56 snd_soc_dapm_enable_pin(codec
, "DMic");
58 snd_soc_dapm_disable_pin(codec
, "DMic");
60 snd_soc_dapm_sync(codec
);
63 static int rx51_startup(struct snd_pcm_substream
*substream
)
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
;
69 snd_pcm_hw_constraint_minmax(runtime
,
70 SNDRV_PCM_HW_PARAM_CHANNELS
, 2, 2);
71 rx51_ext_control(codec
);
76 static int rx51_hw_params(struct snd_pcm_substream
*substream
,
77 struct snd_pcm_hw_params
*params
)
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
;
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
);
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
);
100 /* Set the codec system clock for DAC and ADC */
101 return snd_soc_dai_set_sysclk(codec_dai
, 0, 19200000,
105 static struct snd_soc_ops rx51_ops
= {
106 .startup
= rx51_startup
,
107 .hw_params
= rx51_hw_params
,
110 static int rx51_get_spk(struct snd_kcontrol
*kcontrol
,
111 struct snd_ctl_elem_value
*ucontrol
)
113 ucontrol
->value
.integer
.value
[0] = rx51_spk_func
;
118 static int rx51_set_spk(struct snd_kcontrol
*kcontrol
,
119 struct snd_ctl_elem_value
*ucontrol
)
121 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
123 if (rx51_spk_func
== ucontrol
->value
.integer
.value
[0])
126 rx51_spk_func
= ucontrol
->value
.integer
.value
[0];
127 rx51_ext_control(codec
);
132 static int rx51_spk_event(struct snd_soc_dapm_widget
*w
,
133 struct snd_kcontrol
*k
, int event
)
135 if (SND_SOC_DAPM_EVENT_ON(event
))
136 gpio_set_value(RX51_SPEAKER_AMP_TWL_GPIO
, 1);
138 gpio_set_value(RX51_SPEAKER_AMP_TWL_GPIO
, 0);
143 static int rx51_get_input(struct snd_kcontrol
*kcontrol
,
144 struct snd_ctl_elem_value
*ucontrol
)
146 ucontrol
->value
.integer
.value
[0] = rx51_dmic_func
;
151 static int rx51_set_input(struct snd_kcontrol
*kcontrol
,
152 struct snd_ctl_elem_value
*ucontrol
)
154 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
156 if (rx51_dmic_func
== ucontrol
->value
.integer
.value
[0])
159 rx51_dmic_func
= ucontrol
->value
.integer
.value
[0];
160 rx51_ext_control(codec
);
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
),
170 static const struct snd_soc_dapm_route audio_map
[] = {
171 {"Ext Spk", NULL
, "HPLOUT"},
172 {"Ext Spk", NULL
, "HPROUT"},
174 {"DMic Rate 64", NULL
, "Mic Bias 2V"},
175 {"Mic Bias 2V", NULL
, "DMic"},
178 static const char *spk_function
[] = {"Off", "On"};
179 static const char *input_function
[] = {"ADC", "Digital Mic"};
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
),
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
),
193 static int rx51_aic34_init(struct snd_soc_codec
*codec
)
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");
202 /* Add RX-51 specific controls */
203 err
= snd_soc_add_controls(codec
, aic34_rx51_controls
,
204 ARRAY_SIZE(aic34_rx51_controls
));
208 /* Add RX-51 specific widgets */
209 snd_soc_dapm_new_controls(codec
, aic34_dapm_widgets
,
210 ARRAY_SIZE(aic34_dapm_widgets
));
212 /* Set up RX-51 specific audio path audio_map */
213 snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
215 snd_soc_dapm_sync(codec
);
220 /* Digital audio interface glue - connects codec <--> CPU */
221 static struct snd_soc_dai_link rx51_dai
[] = {
223 .name
= "TLV320AIC34",
224 .stream_name
= "AIC34",
225 .cpu_dai
= &omap_mcbsp_dai
[0],
226 .codec_dai
= &aic3x_dai
,
227 .init
= rx51_aic34_init
,
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
,
239 static struct snd_soc_card rx51_sound_card
= {
241 .dai_link
= rx51_dai
,
242 .num_links
= ARRAY_SIZE(rx51_dai
),
243 .platform
= &omap_soc_platform
,
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
,
253 static struct platform_device
*rx51_snd_device
;
255 static int __init
rx51_soc_init(void)
259 if (!machine_is_nokia_rx51())
262 rx51_snd_device
= platform_device_alloc("soc-audio", -1);
263 if (!rx51_snd_device
) {
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 */
272 err
= platform_device_add(rx51_snd_device
);
278 platform_device_put(rx51_snd_device
);
284 static void __exit
rx51_soc_exit(void)
286 platform_device_unregister(rx51_snd_device
);
289 module_init(rx51_soc_init
);
290 module_exit(rx51_soc_exit
);
292 MODULE_AUTHOR("Nokia Corporation");
293 MODULE_DESCRIPTION("ALSA SoC Nokia RX-51");
294 MODULE_LICENSE("GPL");