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Barry Songc8489c32009-07-23 02:10:34 +08001/*
Barry Song698c3752010-03-19 11:18:40 +08002 * File: sound/soc/blackfin/bf5xx-ad193x.c
Barry Songc8489c32009-07-23 02:10:34 +08003 * Author: Barry Song <Barry.Song@analog.com>
4 *
5 * Created: Thur June 4 2009
Barry Song698c3752010-03-19 11:18:40 +08006 * Description: Board driver for ad193x sound chip
Barry Songc8489c32009-07-23 02:10:34 +08007 *
8 * Bugs: Enter bugs at http://blackfin.uclinux.org/
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, see the file COPYING, or write
22 * to the Free Software Foundation, Inc.,
23 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 */
25
26#include <linux/module.h>
27#include <linux/moduleparam.h>
28#include <linux/device.h>
29#include <sound/core.h>
30#include <sound/pcm.h>
31#include <sound/soc.h>
Barry Songc8489c32009-07-23 02:10:34 +080032#include <sound/pcm_params.h>
33
34#include <asm/blackfin.h>
35#include <asm/cacheflush.h>
36#include <asm/irq.h>
37#include <asm/dma.h>
38#include <asm/portmux.h>
39
Barry Song698c3752010-03-19 11:18:40 +080040#include "../codecs/ad193x.h"
Barry Songc8489c32009-07-23 02:10:34 +080041
42#include "bf5xx-tdm-pcm.h"
43#include "bf5xx-tdm.h"
44
Barry Song698c3752010-03-19 11:18:40 +080045static struct snd_soc_card bf5xx_ad193x;
Barry Songc8489c32009-07-23 02:10:34 +080046
Barry Song698c3752010-03-19 11:18:40 +080047static int bf5xx_ad193x_hw_params(struct snd_pcm_substream *substream,
Barry Songc8489c32009-07-23 02:10:34 +080048 struct snd_pcm_hw_params *params)
49{
50 struct snd_soc_pcm_runtime *rtd = substream->private_data;
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +000051 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
52 struct snd_soc_dai *codec_dai = rtd->codec_dai;
Scott Jiangf04cd9c2011-03-27 05:33:04 -040053 unsigned int clk = 0;
Barry Song08db48f2009-09-15 11:24:52 +080054 unsigned int channel_map[] = {0, 1, 2, 3, 4, 5, 6, 7};
Barry Songc8489c32009-07-23 02:10:34 +080055 int ret = 0;
Scott Jiangf04cd9c2011-03-27 05:33:04 -040056
57 switch (params_rate(params)) {
58 case 48000:
Scott Jiang25ea5242011-08-12 18:04:12 -040059 clk = 24576000;
Scott Jiangf04cd9c2011-03-27 05:33:04 -040060 break;
61 }
62
Barry Songc8489c32009-07-23 02:10:34 +080063 /* set cpu DAI configuration */
64 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A |
65 SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
66 if (ret < 0)
67 return ret;
68
69 /* set codec DAI configuration */
70 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A |
71 SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM);
72 if (ret < 0)
73 return ret;
74
Scott Jiangf04cd9c2011-03-27 05:33:04 -040075 /* set the codec system clock for DAC and ADC */
76 ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk,
77 SND_SOC_CLOCK_IN);
78 if (ret < 0)
79 return ret;
80
Barry Songc8489c32009-07-23 02:10:34 +080081 /* set codec DAI slots, 8 channels, all channels are enabled */
Barry Song08db48f2009-09-15 11:24:52 +080082 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xFF, 0xFF, 8, 32);
83 if (ret < 0)
84 return ret;
85
86 /* set cpu DAI channel mapping */
87 ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map),
88 channel_map, ARRAY_SIZE(channel_map), channel_map);
Barry Songc8489c32009-07-23 02:10:34 +080089 if (ret < 0)
90 return ret;
91
92 return 0;
93}
94
Barry Song698c3752010-03-19 11:18:40 +080095static struct snd_soc_ops bf5xx_ad193x_ops = {
Barry Song698c3752010-03-19 11:18:40 +080096 .hw_params = bf5xx_ad193x_hw_params,
Barry Songc8489c32009-07-23 02:10:34 +080097};
98
Barry Song2c66cb92011-03-28 01:45:10 -040099static struct snd_soc_dai_link bf5xx_ad193x_dai[] = {
100 {
101 .name = "ad193x",
102 .stream_name = "AD193X",
103 .cpu_dai_name = "bfin-tdm.0",
104 .codec_dai_name ="ad193x-hifi",
105 .platform_name = "bfin-tdm-pcm-audio",
Lars-Peter Clausenc5d2e652011-09-05 13:49:57 +0200106 .codec_name = "spi0.5",
Barry Song2c66cb92011-03-28 01:45:10 -0400107 .ops = &bf5xx_ad193x_ops,
108 },
109 {
110 .name = "ad193x",
111 .stream_name = "AD193X",
112 .cpu_dai_name = "bfin-tdm.1",
113 .codec_dai_name ="ad193x-hifi",
114 .platform_name = "bfin-tdm-pcm-audio",
Lars-Peter Clausenc5d2e652011-09-05 13:49:57 +0200115 .codec_name = "spi0.5",
Barry Song2c66cb92011-03-28 01:45:10 -0400116 .ops = &bf5xx_ad193x_ops,
117 },
Barry Songc8489c32009-07-23 02:10:34 +0800118};
119
Barry Song698c3752010-03-19 11:18:40 +0800120static struct snd_soc_card bf5xx_ad193x = {
Mike Frysingerbfe4ee02011-03-28 01:45:09 -0400121 .name = "bfin-ad193x",
Barry Song2c66cb92011-03-28 01:45:10 -0400122 .dai_link = &bf5xx_ad193x_dai[CONFIG_SND_BF5XX_SPORT_NUM],
Barry Songc8489c32009-07-23 02:10:34 +0800123 .num_links = 1,
124};
125
Barry Song698c3752010-03-19 11:18:40 +0800126static struct platform_device *bfxx_ad193x_snd_device;
Barry Songc8489c32009-07-23 02:10:34 +0800127
Barry Song698c3752010-03-19 11:18:40 +0800128static int __init bf5xx_ad193x_init(void)
Barry Songc8489c32009-07-23 02:10:34 +0800129{
130 int ret;
131
Barry Song698c3752010-03-19 11:18:40 +0800132 bfxx_ad193x_snd_device = platform_device_alloc("soc-audio", -1);
133 if (!bfxx_ad193x_snd_device)
Barry Songc8489c32009-07-23 02:10:34 +0800134 return -ENOMEM;
135
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000136 platform_set_drvdata(bfxx_ad193x_snd_device, &bf5xx_ad193x);
Barry Song698c3752010-03-19 11:18:40 +0800137 ret = platform_device_add(bfxx_ad193x_snd_device);
Barry Songc8489c32009-07-23 02:10:34 +0800138
139 if (ret)
Barry Song698c3752010-03-19 11:18:40 +0800140 platform_device_put(bfxx_ad193x_snd_device);
Barry Songc8489c32009-07-23 02:10:34 +0800141
142 return ret;
143}
144
Barry Song698c3752010-03-19 11:18:40 +0800145static void __exit bf5xx_ad193x_exit(void)
Barry Songc8489c32009-07-23 02:10:34 +0800146{
Barry Song698c3752010-03-19 11:18:40 +0800147 platform_device_unregister(bfxx_ad193x_snd_device);
Barry Songc8489c32009-07-23 02:10:34 +0800148}
149
Barry Song698c3752010-03-19 11:18:40 +0800150module_init(bf5xx_ad193x_init);
151module_exit(bf5xx_ad193x_exit);
Barry Songc8489c32009-07-23 02:10:34 +0800152
153/* Module information */
154MODULE_AUTHOR("Barry Song");
Barry Song698c3752010-03-19 11:18:40 +0800155MODULE_DESCRIPTION("ALSA SoC AD193X board driver");
Barry Songc8489c32009-07-23 02:10:34 +0800156MODULE_LICENSE("GPL");
157