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
 31static struct snd_soc_jack hs_jack, mic_jack;
 32
 33static struct snd_soc_jack_pin hs_jack_pins[] = {
 34	{ .pin = "Headset Stereophone",	.mask = SND_JACK_HEADPHONE, },
 35};
 36
 37static struct snd_soc_jack_pin mic_jack_pins[] = {
 38	{ .pin = "Headset Mic 2",	.mask = SND_JACK_MICROPHONE, },
 39};
 40
 41/* ttc machine dapm widgets */
 42static 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 */
 53static 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
 76static int ttc_pm860x_init(struct snd_soc_pcm_runtime *rtd)
 77{
 78	struct snd_soc_codec *codec = rtd->codec;
 79
 80	/* Headset jack detection */
 81	snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE |
 82			      SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
 83			      &hs_jack, hs_jack_pins, ARRAY_SIZE(hs_jack_pins));
 84	snd_soc_card_jack_new(rtd->card, "Microphone Jack", SND_JACK_MICROPHONE,
 85			      &mic_jack, mic_jack_pins,
 86			      ARRAY_SIZE(mic_jack_pins));
 87
 88	/* headphone, microphone detection & headset short detection */
 89	pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
 90			      SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
 91	pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
 92
 93	return 0;
 94}
 95
 96/* ttc/td-dkb digital audio interface glue - connects codec <--> CPU */
 97static struct snd_soc_dai_link ttc_pm860x_hifi_dai[] = {
 98{
 99	 .name = "88pm860x i2s",
100	 .stream_name = "audio playback",
101	 .codec_name = "88pm860x-codec",
102	 .platform_name = "mmp-pcm-audio",
103	 .cpu_dai_name = "pxa-ssp-dai.1",
104	 .codec_dai_name = "88pm860x-i2s",
105	 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
106			SND_SOC_DAIFMT_CBM_CFM,
107	 .init = ttc_pm860x_init,
108},
109};
110
111/* ttc/td audio machine driver */
112static struct snd_soc_card ttc_dkb_card = {
113	.name = "ttc-dkb-hifi",
114	.owner = THIS_MODULE,
115	.dai_link = ttc_pm860x_hifi_dai,
116	.num_links = ARRAY_SIZE(ttc_pm860x_hifi_dai),
117
118	.dapm_widgets = ttc_dapm_widgets,
119	.num_dapm_widgets = ARRAY_SIZE(ttc_dapm_widgets),
120	.dapm_routes = ttc_audio_map,
121	.num_dapm_routes = ARRAY_SIZE(ttc_audio_map),
122};
123
124static int ttc_dkb_probe(struct platform_device *pdev)
125{
126	struct snd_soc_card *card = &ttc_dkb_card;
127	int ret;
128
129	card->dev = &pdev->dev;
130
131	ret = devm_snd_soc_register_card(&pdev->dev, card);
132	if (ret)
133		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
134			ret);
135
136	return ret;
137}
138
139static struct platform_driver ttc_dkb_driver = {
140	.driver		= {
141		.name	= "ttc-dkb-audio",
142		.pm     = &snd_soc_pm_ops,
143	},
144	.probe		= ttc_dkb_probe,
145};
146
147module_platform_driver(ttc_dkb_driver);
148
149/* Module information */
150MODULE_AUTHOR("Qiao Zhou, <zhouqiao@marvell.com>");
151MODULE_DESCRIPTION("ALSA SoC TTC DKB");
152MODULE_LICENSE("GPL");
153MODULE_ALIAS("platform:ttc-dkb-audio");