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Linux/sound/soc/pxa/ttc-dkb.c

  1 /*
  2  * linux/sound/soc/pxa/ttc_dkb.c
  3  *
  4  * Copyright (C) 2012 Marvell International Ltd.
  5  *
  6  * This program is free software; you can redistribute it and/or modify
  7  * it under the terms of the GNU General Public License as published by
  8  * the Free Software Foundation; either version 2 of the License, or
  9  * (at your option) any later version.
 10  *
 11  * This program is distributed in the hope that it will be useful,
 12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14  * GNU General Public License for more details.
 15  *
 16  * You should have received a copy of the GNU General Public License
 17  * along with this program; if not, write to the Free Software
 18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 19  *
 20  */
 21 #include <linux/module.h>
 22 #include <linux/moduleparam.h>
 23 #include <sound/core.h>
 24 #include <sound/pcm.h>
 25 #include <sound/soc.h>
 26 #include <sound/jack.h>
 27 #include <asm/mach-types.h>
 28 #include <sound/pcm_params.h>
 29 #include "../codecs/88pm860x-codec.h"
 30 
 31 static struct snd_soc_jack hs_jack, mic_jack;
 32 
 33 static struct snd_soc_jack_pin hs_jack_pins[] = {
 34         { .pin = "Headset Stereophone", .mask = SND_JACK_HEADPHONE, },
 35 };
 36 
 37 static struct snd_soc_jack_pin mic_jack_pins[] = {
 38         { .pin = "Headset Mic 2",       .mask = SND_JACK_MICROPHONE, },
 39 };
 40 
 41 /* ttc machine dapm widgets */
 42 static const struct snd_soc_dapm_widget ttc_dapm_widgets[] = {
 43         SND_SOC_DAPM_HP("Headset Stereophone", NULL),
 44         SND_SOC_DAPM_LINE("Lineout Out 1", NULL),
 45         SND_SOC_DAPM_LINE("Lineout Out 2", NULL),
 46         SND_SOC_DAPM_SPK("Ext Speaker", NULL),
 47         SND_SOC_DAPM_MIC("Ext Mic 1", NULL),
 48         SND_SOC_DAPM_MIC("Headset Mic 2", NULL),
 49         SND_SOC_DAPM_MIC("Ext Mic 3", NULL),
 50 };
 51 
 52 /* ttc machine audio map */
 53 static const struct snd_soc_dapm_route ttc_audio_map[] = {
 54         {"Headset Stereophone", NULL, "HS1"},
 55         {"Headset Stereophone", NULL, "HS2"},
 56 
 57         {"Ext Speaker", NULL, "LSP"},
 58         {"Ext Speaker", NULL, "LSN"},
 59 
 60         {"Lineout Out 1", NULL, "LINEOUT1"},
 61         {"Lineout Out 2", NULL, "LINEOUT2"},
 62 
 63         {"MIC1P", NULL, "Mic1 Bias"},
 64         {"MIC1N", NULL, "Mic1 Bias"},
 65         {"Mic1 Bias", NULL, "Ext Mic 1"},
 66 
 67         {"MIC2P", NULL, "Mic1 Bias"},
 68         {"MIC2N", NULL, "Mic1 Bias"},
 69         {"Mic1 Bias", NULL, "Headset Mic 2"},
 70 
 71         {"MIC3P", NULL, "Mic3 Bias"},
 72         {"MIC3N", NULL, "Mic3 Bias"},
 73         {"Mic3 Bias", NULL, "Ext Mic 3"},
 74 };
 75 
 76 static int ttc_pm860x_init(struct snd_soc_pcm_runtime *rtd)
 77 {
 78         struct snd_soc_codec *codec = rtd->codec;
 79         struct snd_soc_dapm_context *dapm = &codec->dapm;
 80 
 81         snd_soc_dapm_disable_pin(dapm, "Headset Mic 2");
 82         snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
 83 
 84         /* Headset jack detection */
 85         snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE
 86                         | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
 87                         &hs_jack);
 88         snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
 89                               hs_jack_pins);
 90         snd_soc_jack_new(codec, "Microphone Jack", SND_JACK_MICROPHONE,
 91                          &mic_jack);
 92         snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
 93                               mic_jack_pins);
 94 
 95         /* headphone, microphone detection & headset short detection */
 96         pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
 97                               SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
 98         pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
 99 
100         return 0;
101 }
102 
103 /* ttc/td-dkb digital audio interface glue - connects codec <--> CPU */
104 static struct snd_soc_dai_link ttc_pm860x_hifi_dai[] = {
105 {
106          .name = "88pm860x i2s",
107          .stream_name = "audio playback",
108          .codec_name = "88pm860x-codec",
109          .platform_name = "mmp-pcm-audio",
110          .cpu_dai_name = "pxa-ssp-dai.1",
111          .codec_dai_name = "88pm860x-i2s",
112          .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
113                         SND_SOC_DAIFMT_CBM_CFM,
114          .init = ttc_pm860x_init,
115 },
116 };
117 
118 /* ttc/td audio machine driver */
119 static struct snd_soc_card ttc_dkb_card = {
120         .name = "ttc-dkb-hifi",
121         .owner = THIS_MODULE,
122         .dai_link = ttc_pm860x_hifi_dai,
123         .num_links = ARRAY_SIZE(ttc_pm860x_hifi_dai),
124 
125         .dapm_widgets = ttc_dapm_widgets,
126         .num_dapm_widgets = ARRAY_SIZE(ttc_dapm_widgets),
127         .dapm_routes = ttc_audio_map,
128         .num_dapm_routes = ARRAY_SIZE(ttc_audio_map),
129 };
130 
131 static int ttc_dkb_probe(struct platform_device *pdev)
132 {
133         struct snd_soc_card *card = &ttc_dkb_card;
134         int ret;
135 
136         card->dev = &pdev->dev;
137 
138         ret = snd_soc_register_card(card);
139         if (ret)
140                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
141                         ret);
142 
143         return ret;
144 }
145 
146 static int ttc_dkb_remove(struct platform_device *pdev)
147 {
148         struct snd_soc_card *card = platform_get_drvdata(pdev);
149 
150         snd_soc_unregister_card(card);
151 
152         return 0;
153 }
154 
155 static struct platform_driver ttc_dkb_driver = {
156         .driver         = {
157                 .name   = "ttc-dkb-audio",
158                 .owner  = THIS_MODULE,
159                 .pm     = &snd_soc_pm_ops,
160         },
161         .probe          = ttc_dkb_probe,
162         .remove         = ttc_dkb_remove,
163 };
164 
165 module_platform_driver(ttc_dkb_driver);
166 
167 /* Module information */
168 MODULE_AUTHOR("Qiao Zhou, <zhouqiao@marvell.com>");
169 MODULE_DESCRIPTION("ALSA SoC TTC DKB");
170 MODULE_LICENSE("GPL");
171 MODULE_ALIAS("platform:ttc-dkb-audio");
172 

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