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 /*
30 * WARNING:
31 *
32 * Because Analog Devices Inc. discontinued the ad1980 sound chip since
33 * Sep. 2009, this ad1980 driver is not maintained, tested and supported
34 * by ADI now.
35 */
36
37 #include <linux/module.h>
38 #include <linux/moduleparam.h>
39 #include <linux/device.h>
40 #include <asm/dma.h>
41
42 #include <sound/core.h>
43 #include <sound/pcm.h>
44 #include <sound/soc.h>
45
46 #include <linux/gpio.h>
47 #include <asm/portmux.h>
48
49 #include "../codecs/ad1980.h"
50 #include "bf5xx-sport.h"
51 #include "bf5xx-ac97-pcm.h"
52 #include "bf5xx-ac97.h"
53
54 static struct snd_soc_card bf5xx_board;
55
bf5xx_board_startup(struct snd_pcm_substream * substream)56 static int bf5xx_board_startup(struct snd_pcm_substream *substream)
57 {
58 struct snd_soc_pcm_runtime *rtd = substream->private_data;
59 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
60
61 pr_debug("%s enter\n", __func__);
62 snd_soc_dai_set_drvdata(cpu_dai, sport_handle);
63 return 0;
64 }
65
66 static struct snd_soc_ops bf5xx_board_ops = {
67 .startup = bf5xx_board_startup,
68 };
69
70 static struct snd_soc_dai_link bf5xx_board_dai = {
71 .name = "AC97",
72 .stream_name = "AC97 HiFi",
73 .cpu_dai_name = "bfin-ac97",
74 .codec_dai_name = "ad1980-hifi",
75 .platform_name = "bfin-pcm-audio",
76 .codec_name = "ad1980-codec",
77 .ops = &bf5xx_board_ops,
78 };
79
80 static struct snd_soc_card bf5xx_board = {
81 .name = "bf5xx-board",
82 .dai_link = &bf5xx_board_dai,
83 .num_links = 1,
84 };
85
86 static struct platform_device *bf5xx_board_snd_device;
87
bf5xx_board_init(void)88 static int __init bf5xx_board_init(void)
89 {
90 int ret;
91
92 bf5xx_board_snd_device = platform_device_alloc("soc-audio", -1);
93 if (!bf5xx_board_snd_device)
94 return -ENOMEM;
95
96 platform_set_drvdata(bf5xx_board_snd_device, &bf5xx_board);
97 ret = platform_device_add(bf5xx_board_snd_device);
98
99 if (ret)
100 platform_device_put(bf5xx_board_snd_device);
101
102 return ret;
103 }
104
bf5xx_board_exit(void)105 static void __exit bf5xx_board_exit(void)
106 {
107 platform_device_unregister(bf5xx_board_snd_device);
108 }
109
110 module_init(bf5xx_board_init);
111 module_exit(bf5xx_board_exit);
112
113 /* Module information */
114 MODULE_AUTHOR("Cliff Cai");
115 MODULE_DESCRIPTION("ALSA SoC AD1980/1 BF5xx board (Obsolete)");
116 MODULE_LICENSE("GPL");
117