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5033f43c | 1 | /* sound/soc/samsung/jive_wm8750.c |
3093e48c BD |
2 | * |
3 | * Copyright 2007,2008 Simtec Electronics | |
4 | * | |
5 | * Based on sound/soc/pxa/spitz.c | |
6 | * Copyright 2005 Wolfson Microelectronics PLC. | |
7 | * Copyright 2005 Openedhand Ltd. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
da155d5b | 14 | #include <linux/module.h> |
3093e48c | 15 | #include <sound/soc.h> |
3093e48c BD |
16 | |
17 | #include <asm/mach-types.h> | |
18 | ||
3093e48c | 19 | #include "s3c2412-i2s.h" |
3093e48c BD |
20 | #include "../codecs/wm8750.h" |
21 | ||
22 | static const struct snd_soc_dapm_route audio_map[] = { | |
23 | { "Headphone Jack", NULL, "LOUT1" }, | |
24 | { "Headphone Jack", NULL, "ROUT1" }, | |
25 | { "Internal Speaker", NULL, "LOUT2" }, | |
26 | { "Internal Speaker", NULL, "ROUT2" }, | |
27 | { "LINPUT1", NULL, "Line Input" }, | |
28 | { "RINPUT1", NULL, "Line Input" }, | |
29 | }; | |
30 | ||
31 | static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = { | |
32 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
33 | SND_SOC_DAPM_SPK("Internal Speaker", NULL), | |
34 | SND_SOC_DAPM_LINE("Line In", NULL), | |
35 | }; | |
36 | ||
3093e48c BD |
37 | static int jive_hw_params(struct snd_pcm_substream *substream, |
38 | struct snd_pcm_hw_params *params) | |
39 | { | |
40 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
41 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
42 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
dc85447b | 43 | struct s3c_i2sv2_rate_calc div; |
3093e48c BD |
44 | unsigned int clk = 0; |
45 | int ret = 0; | |
46 | ||
47 | switch (params_rate(params)) { | |
48 | case 8000: | |
49 | case 16000: | |
50 | case 48000: | |
51 | case 96000: | |
52 | clk = 12288000; | |
53 | break; | |
54 | case 11025: | |
55 | case 22050: | |
56 | case 44100: | |
57 | clk = 11289600; | |
58 | break; | |
59 | } | |
60 | ||
01c4cad4 | 61 | s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params), |
57282427 | 62 | s3c_i2sv2_get_clock(cpu_dai)); |
3093e48c BD |
63 | |
64 | /* set codec DAI configuration */ | |
65 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | | |
66 | SND_SOC_DAIFMT_NB_NF | | |
67 | SND_SOC_DAIFMT_CBS_CFS); | |
68 | if (ret < 0) | |
69 | return ret; | |
70 | ||
71 | /* set cpu DAI configuration */ | |
72 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | | |
73 | SND_SOC_DAIFMT_NB_NF | | |
74 | SND_SOC_DAIFMT_CBS_CFS); | |
75 | if (ret < 0) | |
76 | return ret; | |
77 | ||
78 | /* set the codec system clock for DAC and ADC */ | |
79 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk, | |
80 | SND_SOC_CLOCK_IN); | |
81 | if (ret < 0) | |
82 | return ret; | |
83 | ||
84 | ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div); | |
85 | if (ret < 0) | |
86 | return ret; | |
87 | ||
88 | ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER, | |
89 | div.clk_div - 1); | |
90 | if (ret < 0) | |
91 | return ret; | |
92 | ||
93 | return 0; | |
94 | } | |
95 | ||
96 | static struct snd_soc_ops jive_ops = { | |
3093e48c BD |
97 | .hw_params = jive_hw_params, |
98 | }; | |
99 | ||
f0fba2ad | 100 | static int jive_wm8750_init(struct snd_soc_pcm_runtime *rtd) |
3093e48c | 101 | { |
f0fba2ad | 102 | struct snd_soc_codec *codec = rtd->codec; |
ce6120cc | 103 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
3093e48c BD |
104 | int err; |
105 | ||
106 | /* These endpoints are not being used. */ | |
ce6120cc LG |
107 | snd_soc_dapm_nc_pin(dapm, "LINPUT2"); |
108 | snd_soc_dapm_nc_pin(dapm, "RINPUT2"); | |
109 | snd_soc_dapm_nc_pin(dapm, "LINPUT3"); | |
110 | snd_soc_dapm_nc_pin(dapm, "RINPUT3"); | |
111 | snd_soc_dapm_nc_pin(dapm, "OUT3"); | |
112 | snd_soc_dapm_nc_pin(dapm, "MONO"); | |
3093e48c | 113 | |
3093e48c BD |
114 | return 0; |
115 | } | |
116 | ||
117 | static struct snd_soc_dai_link jive_dai = { | |
118 | .name = "wm8750", | |
119 | .stream_name = "WM8750", | |
f0fba2ad LG |
120 | .cpu_dai_name = "s3c2412-i2s", |
121 | .codec_dai_name = "wm8750-hifi", | |
58bb4072 | 122 | .platform_name = "samsung-audio", |
dc5de62b | 123 | .codec_name = "wm8750.0-001a", |
3093e48c BD |
124 | .init = jive_wm8750_init, |
125 | .ops = &jive_ops, | |
126 | }; | |
127 | ||
128 | /* jive audio machine driver */ | |
01c4cad4 | 129 | static struct snd_soc_card snd_soc_machine_jive = { |
3093e48c BD |
130 | .name = "Jive", |
131 | .dai_link = &jive_dai, | |
132 | .num_links = 1, | |
03b5362d MB |
133 | |
134 | .dapm_widgtets = wm8750_dapm_widgets, | |
135 | .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets), | |
136 | .dapm_routes = audio_map, | |
137 | .num_dapm_routes = ARRAY_SIZE(audio_map), | |
3093e48c BD |
138 | }; |
139 | ||
3093e48c BD |
140 | static struct platform_device *jive_snd_device; |
141 | ||
142 | static int __init jive_init(void) | |
143 | { | |
144 | int ret; | |
145 | ||
146 | if (!machine_is_jive()) | |
147 | return 0; | |
148 | ||
149 | printk("JIVE WM8750 Audio support\n"); | |
150 | ||
151 | jive_snd_device = platform_device_alloc("soc-audio", -1); | |
152 | if (!jive_snd_device) | |
153 | return -ENOMEM; | |
154 | ||
f0fba2ad | 155 | platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive); |
3093e48c BD |
156 | ret = platform_device_add(jive_snd_device); |
157 | ||
158 | if (ret) | |
159 | platform_device_put(jive_snd_device); | |
160 | ||
161 | return ret; | |
162 | } | |
163 | ||
164 | static void __exit jive_exit(void) | |
165 | { | |
166 | platform_device_unregister(jive_snd_device); | |
167 | } | |
168 | ||
169 | module_init(jive_init); | |
170 | module_exit(jive_exit); | |
171 | ||
172 | MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); | |
173 | MODULE_DESCRIPTION("ALSA SoC Jive Audio support"); | |
174 | MODULE_LICENSE("GPL"); |