Commit | Line | Data |
---|---|---|
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> | |
c8489c3e BS |
32 | #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 | ||
698c3756 | 40 | #include "../codecs/ad193x.h" |
c8489c3e BS |
41 | |
42 | #include "bf5xx-tdm-pcm.h" | |
43 | #include "bf5xx-tdm.h" | |
44 | ||
698c3756 | 45 | static struct snd_soc_card bf5xx_ad193x; |
c8489c3e | 46 | |
698c3756 | 47 | static int bf5xx_ad193x_hw_params(struct snd_pcm_substream *substream, |
c8489c3e BS |
48 | struct snd_pcm_hw_params *params) |
49 | { | |
50 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
51 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
52 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
f04cd9cb | 53 | unsigned int clk = 0; |
08db48f1 | 54 | unsigned int channel_map[] = {0, 1, 2, 3, 4, 5, 6, 7}; |
c8489c3e | 55 | int ret = 0; |
f04cd9cb SJ |
56 | |
57 | switch (params_rate(params)) { | |
58 | case 48000: | |
59 | clk = 12288000; | |
60 | break; | |
61 | } | |
62 | ||
c8489c3e BS |
63 | /* 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 | ||
f04cd9cb SJ |
75 | /* 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 | ||
c8489c3e | 81 | /* set codec DAI slots, 8 channels, all channels are enabled */ |
08db48f1 BS |
82 | 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); | |
c8489c3e BS |
89 | if (ret < 0) |
90 | return ret; | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
698c3756 | 95 | static struct snd_soc_ops bf5xx_ad193x_ops = { |
698c3756 | 96 | .hw_params = bf5xx_ad193x_hw_params, |
c8489c3e BS |
97 | }; |
98 | ||
2c66cb99 BS |
99 | static 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", | |
106 | .codec_name = "ad193x.5", | |
107 | .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", | |
115 | .codec_name = "ad193x.5", | |
116 | .ops = &bf5xx_ad193x_ops, | |
117 | }, | |
c8489c3e BS |
118 | }; |
119 | ||
698c3756 | 120 | static struct snd_soc_card bf5xx_ad193x = { |
bfe4ee0a | 121 | .name = "bfin-ad193x", |
2c66cb99 | 122 | .dai_link = &bf5xx_ad193x_dai[CONFIG_SND_BF5XX_SPORT_NUM], |
c8489c3e BS |
123 | .num_links = 1, |
124 | }; | |
125 | ||
698c3756 | 126 | static struct platform_device *bfxx_ad193x_snd_device; |
c8489c3e | 127 | |
698c3756 | 128 | static int __init bf5xx_ad193x_init(void) |
c8489c3e BS |
129 | { |
130 | int ret; | |
131 | ||
698c3756 BS |
132 | bfxx_ad193x_snd_device = platform_device_alloc("soc-audio", -1); |
133 | if (!bfxx_ad193x_snd_device) | |
c8489c3e BS |
134 | return -ENOMEM; |
135 | ||
f0fba2ad | 136 | platform_set_drvdata(bfxx_ad193x_snd_device, &bf5xx_ad193x); |
698c3756 | 137 | ret = platform_device_add(bfxx_ad193x_snd_device); |
c8489c3e BS |
138 | |
139 | if (ret) | |
698c3756 | 140 | platform_device_put(bfxx_ad193x_snd_device); |
c8489c3e BS |
141 | |
142 | return ret; | |
143 | } | |
144 | ||
698c3756 | 145 | static void __exit bf5xx_ad193x_exit(void) |
c8489c3e | 146 | { |
698c3756 | 147 | platform_device_unregister(bfxx_ad193x_snd_device); |
c8489c3e BS |
148 | } |
149 | ||
698c3756 BS |
150 | module_init(bf5xx_ad193x_init); |
151 | module_exit(bf5xx_ad193x_exit); | |
c8489c3e BS |
152 | |
153 | /* Module information */ | |
154 | MODULE_AUTHOR("Barry Song"); | |
698c3756 | 155 | MODULE_DESCRIPTION("ALSA SoC AD193X board driver"); |
c8489c3e BS |
156 | MODULE_LICENSE("GPL"); |
157 |