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c8489c3e | 1 | /* |
698c3756 | 2 | * File: sound/soc/blackfin/bf5xx-ad193x.c |
c8489c3e BS |
3 | * Author: Barry Song <Barry.Song@analog.com> |
4 | * | |
5 | * Created: Thur June 4 2009 | |
698c3756 | 6 | * Description: Board driver for ad193x sound chip |
c8489c3e BS |
7 | * |
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> | |
32 | #include <sound/soc-dapm.h> | |
33 | #include <sound/pcm_params.h> | |
34 | ||
35 | #include <asm/blackfin.h> | |
36 | #include <asm/cacheflush.h> | |
37 | #include <asm/irq.h> | |
38 | #include <asm/dma.h> | |
39 | #include <asm/portmux.h> | |
40 | ||
698c3756 | 41 | #include "../codecs/ad193x.h" |
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42 | #include "bf5xx-sport.h" |
43 | ||
44 | #include "bf5xx-tdm-pcm.h" | |
45 | #include "bf5xx-tdm.h" | |
46 | ||
698c3756 | 47 | static struct snd_soc_card bf5xx_ad193x; |
c8489c3e | 48 | |
698c3756 | 49 | static int bf5xx_ad193x_startup(struct snd_pcm_substream *substream) |
c8489c3e BS |
50 | { |
51 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 52 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
c8489c3e | 53 | |
f0fba2ad | 54 | snd_soc_dai_set_drvdata(cpu_dai, sport_handle); |
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55 | return 0; |
56 | } | |
57 | ||
698c3756 | 58 | static int bf5xx_ad193x_hw_params(struct snd_pcm_substream *substream, |
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59 | struct snd_pcm_hw_params *params) |
60 | { | |
61 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
62 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
63 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
08db48f1 | 64 | unsigned int channel_map[] = {0, 1, 2, 3, 4, 5, 6, 7}; |
c8489c3e BS |
65 | int ret = 0; |
66 | /* set cpu DAI configuration */ | |
67 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_DSP_A | | |
68 | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM); | |
69 | if (ret < 0) | |
70 | return ret; | |
71 | ||
72 | /* set codec DAI configuration */ | |
73 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_A | | |
74 | SND_SOC_DAIFMT_IB_IF | SND_SOC_DAIFMT_CBM_CFM); | |
75 | if (ret < 0) | |
76 | return ret; | |
77 | ||
78 | /* set codec DAI slots, 8 channels, all channels are enabled */ | |
08db48f1 BS |
79 | ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xFF, 0xFF, 8, 32); |
80 | if (ret < 0) | |
81 | return ret; | |
82 | ||
83 | /* set cpu DAI channel mapping */ | |
84 | ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map), | |
85 | channel_map, ARRAY_SIZE(channel_map), channel_map); | |
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86 | if (ret < 0) |
87 | return ret; | |
88 | ||
89 | return 0; | |
90 | } | |
91 | ||
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92 | static struct snd_soc_ops bf5xx_ad193x_ops = { |
93 | .startup = bf5xx_ad193x_startup, | |
94 | .hw_params = bf5xx_ad193x_hw_params, | |
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95 | }; |
96 | ||
698c3756 BS |
97 | static struct snd_soc_dai_link bf5xx_ad193x_dai = { |
98 | .name = "ad193x", | |
99 | .stream_name = "AD193X", | |
f0fba2ad LG |
100 | .cpu_dai_name = "bf5xx-tdm", |
101 | .codec_dai_name ="ad193x-hifi", | |
102 | .platform_name = "bf5xx-tdm-pcm-audio", | |
103 | .codec_name = "ad193x-codec.5", | |
698c3756 | 104 | .ops = &bf5xx_ad193x_ops, |
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105 | }; |
106 | ||
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107 | static struct snd_soc_card bf5xx_ad193x = { |
108 | .name = "bf5xx_ad193x", | |
698c3756 | 109 | .dai_link = &bf5xx_ad193x_dai, |
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110 | .num_links = 1, |
111 | }; | |
112 | ||
698c3756 | 113 | static struct platform_device *bfxx_ad193x_snd_device; |
c8489c3e | 114 | |
698c3756 | 115 | static int __init bf5xx_ad193x_init(void) |
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116 | { |
117 | int ret; | |
118 | ||
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119 | bfxx_ad193x_snd_device = platform_device_alloc("soc-audio", -1); |
120 | if (!bfxx_ad193x_snd_device) | |
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121 | return -ENOMEM; |
122 | ||
f0fba2ad | 123 | platform_set_drvdata(bfxx_ad193x_snd_device, &bf5xx_ad193x); |
698c3756 | 124 | ret = platform_device_add(bfxx_ad193x_snd_device); |
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125 | |
126 | if (ret) | |
698c3756 | 127 | platform_device_put(bfxx_ad193x_snd_device); |
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128 | |
129 | return ret; | |
130 | } | |
131 | ||
698c3756 | 132 | static void __exit bf5xx_ad193x_exit(void) |
c8489c3e | 133 | { |
698c3756 | 134 | platform_device_unregister(bfxx_ad193x_snd_device); |
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135 | } |
136 | ||
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137 | module_init(bf5xx_ad193x_init); |
138 | module_exit(bf5xx_ad193x_exit); | |
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139 | |
140 | /* Module information */ | |
141 | MODULE_AUTHOR("Barry Song"); | |
698c3756 | 142 | MODULE_DESCRIPTION("ALSA SoC AD193X board driver"); |
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143 | MODULE_LICENSE("GPL"); |
144 |