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aef05294 LPC |
1 | /* |
2 | * Machine driver for EVAL-ADAV801 and EVAL-ADAV803 on Analog Devices bfin | |
3 | * evaluation boards. | |
4 | * | |
5 | * Copyright 2011 Analog Devices Inc. | |
6 | * Author: Lars-Peter Clausen <lars@metafoo.de> | |
7 | * | |
8 | * Licensed under the GPL-2 or later. | |
9 | */ | |
10 | ||
11 | #include <linux/init.h> | |
12 | #include <linux/platform_device.h> | |
da155d5b | 13 | #include <linux/module.h> |
aef05294 LPC |
14 | #include <sound/core.h> |
15 | #include <sound/pcm.h> | |
16 | #include <sound/soc.h> | |
17 | ||
18 | #include "../codecs/adav80x.h" | |
19 | ||
20 | static const struct snd_soc_dapm_widget bfin_eval_adav80x_dapm_widgets[] = { | |
21 | SND_SOC_DAPM_LINE("Line Out", NULL), | |
22 | SND_SOC_DAPM_LINE("Line In", NULL), | |
23 | }; | |
24 | ||
25 | static const struct snd_soc_dapm_route bfin_eval_adav80x_dapm_routes[] = { | |
26 | { "Line Out", NULL, "VOUTL" }, | |
27 | { "Line Out", NULL, "VOUTR" }, | |
28 | ||
29 | { "VINL", NULL, "Line In" }, | |
30 | { "VINR", NULL, "Line In" }, | |
31 | }; | |
32 | ||
33 | static int bfin_eval_adav80x_hw_params(struct snd_pcm_substream *substream, | |
34 | struct snd_pcm_hw_params *params) | |
35 | { | |
36 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
aef05294 LPC |
37 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
38 | int ret; | |
39 | ||
aef05294 LPC |
40 | ret = snd_soc_dai_set_pll(codec_dai, ADAV80X_PLL1, ADAV80X_PLL_SRC_XTAL, |
41 | 27000000, params_rate(params) * 256); | |
42 | if (ret) | |
43 | return ret; | |
44 | ||
45 | ret = snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_PLL1, | |
46 | params_rate(params) * 256, SND_SOC_CLOCK_IN); | |
47 | ||
48 | return ret; | |
49 | } | |
50 | ||
51 | static int bfin_eval_adav80x_codec_init(struct snd_soc_pcm_runtime *rtd) | |
52 | { | |
53 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
54 | ||
55 | snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK1, 0, | |
56 | SND_SOC_CLOCK_OUT); | |
57 | snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK2, 0, | |
58 | SND_SOC_CLOCK_OUT); | |
59 | snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_SYSCLK3, 0, | |
60 | SND_SOC_CLOCK_OUT); | |
61 | ||
62 | snd_soc_dai_set_sysclk(codec_dai, ADAV80X_CLK_XTAL, 2700000, 0); | |
63 | ||
64 | return 0; | |
65 | } | |
66 | ||
67 | static struct snd_soc_ops bfin_eval_adav80x_ops = { | |
68 | .hw_params = bfin_eval_adav80x_hw_params, | |
69 | }; | |
70 | ||
71 | static struct snd_soc_dai_link bfin_eval_adav80x_dais[] = { | |
72 | { | |
73 | .name = "adav80x", | |
74 | .stream_name = "ADAV80x HiFi", | |
75 | .cpu_dai_name = "bfin-i2s.0", | |
76 | .codec_dai_name = "adav80x-hifi", | |
77 | .platform_name = "bfin-i2s-pcm-audio", | |
78 | .init = bfin_eval_adav80x_codec_init, | |
79 | .ops = &bfin_eval_adav80x_ops, | |
980b0bc6 LPC |
80 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
81 | SND_SOC_DAIFMT_CBM_CFM, | |
aef05294 LPC |
82 | }, |
83 | }; | |
84 | ||
85 | static struct snd_soc_card bfin_eval_adav80x = { | |
86 | .name = "bfin-eval-adav80x", | |
30e49530 | 87 | .owner = THIS_MODULE, |
aef05294 LPC |
88 | .dai_link = bfin_eval_adav80x_dais, |
89 | .num_links = ARRAY_SIZE(bfin_eval_adav80x_dais), | |
90 | ||
91 | .dapm_widgets = bfin_eval_adav80x_dapm_widgets, | |
92 | .num_dapm_widgets = ARRAY_SIZE(bfin_eval_adav80x_dapm_widgets), | |
93 | .dapm_routes = bfin_eval_adav80x_dapm_routes, | |
94 | .num_dapm_routes = ARRAY_SIZE(bfin_eval_adav80x_dapm_routes), | |
95 | }; | |
96 | ||
97 | enum bfin_eval_adav80x_type { | |
98 | BFIN_EVAL_ADAV801, | |
99 | BFIN_EVAL_ADAV803, | |
100 | }; | |
101 | ||
102 | static int bfin_eval_adav80x_probe(struct platform_device *pdev) | |
103 | { | |
104 | struct snd_soc_card *card = &bfin_eval_adav80x; | |
105 | const char *codec_name; | |
106 | ||
107 | switch (platform_get_device_id(pdev)->driver_data) { | |
108 | case BFIN_EVAL_ADAV801: | |
109 | codec_name = "spi0.1"; | |
110 | break; | |
111 | case BFIN_EVAL_ADAV803: | |
112 | codec_name = "adav803.0-0034"; | |
113 | break; | |
114 | default: | |
115 | return -EINVAL; | |
116 | } | |
117 | ||
118 | bfin_eval_adav80x_dais[0].codec_name = codec_name; | |
119 | ||
120 | card->dev = &pdev->dev; | |
121 | ||
76b0d1f5 | 122 | return devm_snd_soc_register_card(&pdev->dev, &bfin_eval_adav80x); |
aef05294 LPC |
123 | } |
124 | ||
125 | static const struct platform_device_id bfin_eval_adav80x_ids[] = { | |
126 | { "bfin-eval-adav801", BFIN_EVAL_ADAV801 }, | |
127 | { "bfin-eval-adav803", BFIN_EVAL_ADAV803 }, | |
128 | { }, | |
129 | }; | |
130 | MODULE_DEVICE_TABLE(platform, bfin_eval_adav80x_ids); | |
131 | ||
132 | static struct platform_driver bfin_eval_adav80x_driver = { | |
133 | .driver = { | |
134 | .name = "bfin-eval-adav80x", | |
aef05294 LPC |
135 | .pm = &snd_soc_pm_ops, |
136 | }, | |
137 | .probe = bfin_eval_adav80x_probe, | |
aef05294 LPC |
138 | .id_table = bfin_eval_adav80x_ids, |
139 | }; | |
140 | ||
fb80297e | 141 | module_platform_driver(bfin_eval_adav80x_driver); |
aef05294 LPC |
142 | |
143 | MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); | |
144 | MODULE_DESCRIPTION("ALSA SoC bfin adav80x driver"); | |
145 | MODULE_LICENSE("GPL"); |