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