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20#include <linux/clk.h>
21#include <linux/platform_device.h>
22#include <linux/module.h>
23#include <sound/core.h>
24#include <sound/pcm.h>
25#include <sound/soc.h>
26
27#include <asm/mach-types.h>
28#include <linux/platform_data/asoc-ti-mcbsp.h>
29
30#include "omap-mcbsp.h"
31
32#include "../codecs/tlv320aic23.h"
33
34#define CODEC_CLOCK 12000000
35
36static int am3517evm_hw_params(struct snd_pcm_substream *substream,
37 struct snd_pcm_hw_params *params)
38{
39 struct snd_soc_pcm_runtime *rtd = substream->private_data;
40 struct snd_soc_dai *codec_dai = rtd->codec_dai;
41 int ret;
42
43
44 ret = snd_soc_dai_set_sysclk(codec_dai, 0,
45 CODEC_CLOCK, SND_SOC_CLOCK_IN);
46 if (ret < 0)
47 printk(KERN_ERR "can't set codec system clock\n");
48
49 return ret;
50}
51
52static struct snd_soc_ops am3517evm_ops = {
53 .hw_params = am3517evm_hw_params,
54};
55
56
57static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
58 SND_SOC_DAPM_HP("Line Out", NULL),
59 SND_SOC_DAPM_LINE("Line In", NULL),
60 SND_SOC_DAPM_MIC("Mic In", NULL),
61};
62
63static const struct snd_soc_dapm_route audio_map[] = {
64
65 {"Line Out", NULL, "LOUT"},
66 {"Line Out", NULL, "ROUT"},
67
68 {"LLINEIN", NULL, "Line In"},
69 {"RLINEIN", NULL, "Line In"},
70
71 {"MICIN", NULL, "Mic In"},
72};
73
74
75static struct snd_soc_dai_link am3517evm_dai = {
76 .name = "TLV320AIC23",
77 .stream_name = "AIC23",
78 .cpu_dai_name = "omap-mcbsp.1",
79 .codec_dai_name = "tlv320aic23-hifi",
80 .platform_name = "omap-mcbsp.1",
81 .codec_name = "tlv320aic23-codec.2-001a",
82 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
83 SND_SOC_DAIFMT_CBM_CFM,
84 .ops = &am3517evm_ops,
85};
86
87
88static struct snd_soc_card snd_soc_am3517evm = {
89 .name = "am3517evm",
90 .owner = THIS_MODULE,
91 .dai_link = &am3517evm_dai,
92 .num_links = 1,
93
94 .dapm_widgets = tlv320aic23_dapm_widgets,
95 .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
96 .dapm_routes = audio_map,
97 .num_dapm_routes = ARRAY_SIZE(audio_map),
98};
99
100static struct platform_device *am3517evm_snd_device;
101
102static int __init am3517evm_soc_init(void)
103{
104 int ret;
105
106 if (!machine_is_omap3517evm())
107 return -ENODEV;
108 pr_info("OMAP3517 / AM3517 EVM SoC init\n");
109
110 am3517evm_snd_device = platform_device_alloc("soc-audio", -1);
111 if (!am3517evm_snd_device) {
112 printk(KERN_ERR "Platform device allocation failed\n");
113 return -ENOMEM;
114 }
115
116 platform_set_drvdata(am3517evm_snd_device, &snd_soc_am3517evm);
117
118 ret = platform_device_add(am3517evm_snd_device);
119 if (ret)
120 goto err1;
121
122 return 0;
123
124err1:
125 printk(KERN_ERR "Unable to add platform device\n");
126 platform_device_put(am3517evm_snd_device);
127
128 return ret;
129}
130
131static void __exit am3517evm_soc_exit(void)
132{
133 platform_device_unregister(am3517evm_snd_device);
134}
135
136module_init(am3517evm_soc_init);
137module_exit(am3517evm_soc_exit);
138
139MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>");
140MODULE_DESCRIPTION("ALSA SoC OMAP3517 / AM3517 EVM");
141MODULE_LICENSE("GPL v2");
142