1 /*
2 * File: sound/soc/blackfin/bf5xx-ad1980.c
3 * Author: Cliff Cai <Cliff.Cai@analog.com>
4 *
5 * Created: Tue June 06 2008
6 * Description: Board driver for AD1980/1 audio codec
7 *
8 * Modified:
9 * Copyright 2008 Analog Devices Inc.
10 *
11 * Bugs: Enter bugs at http://blackfin.uclinux.org/
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, see the file COPYING, or write
25 * to the Free Software Foundation, Inc.,
26 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
27 */
28
29 #include <linux/module.h>
30 #include <linux/moduleparam.h>
31 #include <linux/device.h>
32 #include <asm/dma.h>
33
34 #include <sound/core.h>
35 #include <sound/pcm.h>
36 #include <sound/soc.h>
37
38 #include <linux/gpio.h>
39 #include <asm/portmux.h>
40
41 #include "../codecs/ad1980.h"
42 #include "bf5xx-sport.h"
43 #include "bf5xx-ac97-pcm.h"
44 #include "bf5xx-ac97.h"
45
46 static struct snd_soc_card bf5xx_board;
47
bf5xx_board_startup(struct snd_pcm_substream * substream)48 static int bf5xx_board_startup(struct snd_pcm_substream *substream)
49 {
50 struct snd_soc_pcm_runtime *rtd = substream->private_data;
51 struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
52
53 pr_debug("%s enter\n", __func__);
54 cpu_dai->private_data = sport_handle;
55 return 0;
56 }
57
58 static struct snd_soc_ops bf5xx_board_ops = {
59 .startup = bf5xx_board_startup,
60 };
61
62 static struct snd_soc_dai_link bf5xx_board_dai = {
63 .name = "AC97",
64 .stream_name = "AC97 HiFi",
65 .cpu_dai = &bfin_ac97_dai,
66 .codec_dai = &ad1980_dai,
67 .ops = &bf5xx_board_ops,
68 };
69
70 static struct snd_soc_card bf5xx_board = {
71 .name = "bf5xx-board",
72 .platform = &bf5xx_ac97_soc_platform,
73 .dai_link = &bf5xx_board_dai,
74 .num_links = 1,
75 };
76
77 static struct snd_soc_device bf5xx_board_snd_devdata = {
78 .card = &bf5xx_board,
79 .codec_dev = &soc_codec_dev_ad1980,
80 };
81
82 static struct platform_device *bf5xx_board_snd_device;
83
bf5xx_board_init(void)84 static int __init bf5xx_board_init(void)
85 {
86 int ret;
87
88 bf5xx_board_snd_device = platform_device_alloc("soc-audio", -1);
89 if (!bf5xx_board_snd_device)
90 return -ENOMEM;
91
92 platform_set_drvdata(bf5xx_board_snd_device, &bf5xx_board_snd_devdata);
93 bf5xx_board_snd_devdata.dev = &bf5xx_board_snd_device->dev;
94 ret = platform_device_add(bf5xx_board_snd_device);
95
96 if (ret)
97 platform_device_put(bf5xx_board_snd_device);
98
99 return ret;
100 }
101
bf5xx_board_exit(void)102 static void __exit bf5xx_board_exit(void)
103 {
104 platform_device_unregister(bf5xx_board_snd_device);
105 }
106
107 module_init(bf5xx_board_init);
108 module_exit(bf5xx_board_exit);
109
110 /* Module information */
111 MODULE_AUTHOR("Cliff Cai");
112 MODULE_DESCRIPTION("ALSA SoC AD1980/1 BF5xx board");
113 MODULE_LICENSE("GPL");
114