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14#include <linux/platform_device.h>
15#include <linux/module.h>
16#include <sound/core.h>
17#include <sound/pcm.h>
18#include <sound/soc.h>
19
20#include <asm/mach-types.h>
21#include <mach/hardware.h>
22
23#include "../codecs/tlv320aic23.h"
24
25#define CODEC_CLOCK 5644800
26
27static int snappercl15_hw_params(struct snd_pcm_substream *substream,
28 struct snd_pcm_hw_params *params)
29{
30 struct snd_soc_pcm_runtime *rtd = substream->private_data;
31 struct snd_soc_dai *codec_dai = rtd->codec_dai;
32 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
33 int err;
34
35 err = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK,
36 SND_SOC_CLOCK_IN);
37 if (err)
38 return err;
39
40 err = snd_soc_dai_set_sysclk(cpu_dai, 0, CODEC_CLOCK,
41 SND_SOC_CLOCK_OUT);
42 if (err)
43 return err;
44
45 return 0;
46}
47
48static struct snd_soc_ops snappercl15_ops = {
49 .hw_params = snappercl15_hw_params,
50};
51
52static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
53 SND_SOC_DAPM_HP("Headphone Jack", NULL),
54 SND_SOC_DAPM_LINE("Line In", NULL),
55 SND_SOC_DAPM_MIC("Mic Jack", NULL),
56};
57
58static const struct snd_soc_dapm_route audio_map[] = {
59 {"Headphone Jack", NULL, "LHPOUT"},
60 {"Headphone Jack", NULL, "RHPOUT"},
61
62 {"LLINEIN", NULL, "Line In"},
63 {"RLINEIN", NULL, "Line In"},
64
65 {"MICIN", NULL, "Mic Jack"},
66};
67
68static int snappercl15_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd)
69{
70 struct snd_soc_codec *codec = rtd->codec;
71 struct snd_soc_dapm_context *dapm = &codec->dapm;
72
73 snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets,
74 ARRAY_SIZE(tlv320aic23_dapm_widgets));
75
76 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
77 return 0;
78}
79
80static struct snd_soc_dai_link snappercl15_dai = {
81 .name = "tlv320aic23",
82 .stream_name = "AIC23",
83 .cpu_dai_name = "ep93xx-i2s",
84 .codec_dai_name = "tlv320aic23-hifi",
85 .codec_name = "tlv320aic23-codec.0-001a",
86 .platform_name = "ep93xx-pcm-audio",
87 .init = snappercl15_tlv320aic23_init,
88 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_IF |
89 SND_SOC_DAIFMT_CBS_CFS,
90 .ops = &snappercl15_ops,
91};
92
93static struct snd_soc_card snd_soc_snappercl15 = {
94 .name = "Snapper CL15",
95 .owner = THIS_MODULE,
96 .dai_link = &snappercl15_dai,
97 .num_links = 1,
98};
99
100static int snappercl15_probe(struct platform_device *pdev)
101{
102 struct snd_soc_card *card = &snd_soc_snappercl15;
103 int ret;
104
105 ret = ep93xx_i2s_acquire();
106 if (ret)
107 return ret;
108
109 card->dev = &pdev->dev;
110
111 ret = snd_soc_register_card(card);
112 if (ret) {
113 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
114 ret);
115 ep93xx_i2s_release();
116 }
117
118 return ret;
119}
120
121static int snappercl15_remove(struct platform_device *pdev)
122{
123 struct snd_soc_card *card = platform_get_drvdata(pdev);
124
125 snd_soc_unregister_card(card);
126 ep93xx_i2s_release();
127
128 return 0;
129}
130
131static struct platform_driver snappercl15_driver = {
132 .driver = {
133 .name = "snappercl15-audio",
134 .owner = THIS_MODULE,
135 },
136 .probe = snappercl15_probe,
137 .remove = snappercl15_remove,
138};
139
140module_platform_driver(snappercl15_driver);
141
142MODULE_AUTHOR("Ryan Mallon");
143MODULE_DESCRIPTION("ALSA SoC Snapper CL15");
144MODULE_LICENSE("GPL");
145MODULE_ALIAS("platform:snappercl15-audio");
146