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3093e48c BD |
1 | /* sound/soc/s3c24xx/jive_wm8750.c |
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 | ||
14 | #include <linux/module.h> | |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/timer.h> | |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/platform_device.h> | |
19 | #include <linux/clk.h> | |
20 | ||
21 | #include <sound/core.h> | |
22 | #include <sound/pcm.h> | |
23 | #include <sound/soc.h> | |
24 | #include <sound/soc-dapm.h> | |
25 | ||
26 | #include <asm/mach-types.h> | |
27 | ||
d3ff5a3e | 28 | #include "s3c-dma.h" |
3093e48c BD |
29 | #include "s3c2412-i2s.h" |
30 | ||
31 | #include "../codecs/wm8750.h" | |
32 | ||
33 | static const struct snd_soc_dapm_route audio_map[] = { | |
34 | { "Headphone Jack", NULL, "LOUT1" }, | |
35 | { "Headphone Jack", NULL, "ROUT1" }, | |
36 | { "Internal Speaker", NULL, "LOUT2" }, | |
37 | { "Internal Speaker", NULL, "ROUT2" }, | |
38 | { "LINPUT1", NULL, "Line Input" }, | |
39 | { "RINPUT1", NULL, "Line Input" }, | |
40 | }; | |
41 | ||
42 | static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = { | |
43 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
44 | SND_SOC_DAPM_SPK("Internal Speaker", NULL), | |
45 | SND_SOC_DAPM_LINE("Line In", NULL), | |
46 | }; | |
47 | ||
3093e48c BD |
48 | static int jive_hw_params(struct snd_pcm_substream *substream, |
49 | struct snd_pcm_hw_params *params) | |
50 | { | |
51 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
52 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
53 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
dc85447b | 54 | struct s3c_i2sv2_rate_calc div; |
3093e48c BD |
55 | unsigned int clk = 0; |
56 | int ret = 0; | |
57 | ||
58 | switch (params_rate(params)) { | |
59 | case 8000: | |
60 | case 16000: | |
61 | case 48000: | |
62 | case 96000: | |
63 | clk = 12288000; | |
64 | break; | |
65 | case 11025: | |
66 | case 22050: | |
67 | case 44100: | |
68 | clk = 11289600; | |
69 | break; | |
70 | } | |
71 | ||
01c4cad4 | 72 | s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params), |
57282427 | 73 | s3c_i2sv2_get_clock(cpu_dai)); |
3093e48c BD |
74 | |
75 | /* set codec DAI configuration */ | |
76 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | | |
77 | SND_SOC_DAIFMT_NB_NF | | |
78 | SND_SOC_DAIFMT_CBS_CFS); | |
79 | if (ret < 0) | |
80 | return ret; | |
81 | ||
82 | /* set cpu DAI configuration */ | |
83 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | | |
84 | SND_SOC_DAIFMT_NB_NF | | |
85 | SND_SOC_DAIFMT_CBS_CFS); | |
86 | if (ret < 0) | |
87 | return ret; | |
88 | ||
89 | /* set the codec system clock for DAC and ADC */ | |
90 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk, | |
91 | SND_SOC_CLOCK_IN); | |
92 | if (ret < 0) | |
93 | return ret; | |
94 | ||
95 | ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div); | |
96 | if (ret < 0) | |
97 | return ret; | |
98 | ||
99 | ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER, | |
100 | div.clk_div - 1); | |
101 | if (ret < 0) | |
102 | return ret; | |
103 | ||
104 | return 0; | |
105 | } | |
106 | ||
107 | static struct snd_soc_ops jive_ops = { | |
3093e48c BD |
108 | .hw_params = jive_hw_params, |
109 | }; | |
110 | ||
f0fba2ad | 111 | static int jive_wm8750_init(struct snd_soc_pcm_runtime *rtd) |
3093e48c | 112 | { |
f0fba2ad | 113 | struct snd_soc_codec *codec = rtd->codec; |
3093e48c BD |
114 | int err; |
115 | ||
116 | /* These endpoints are not being used. */ | |
a1b3eaeb MB |
117 | snd_soc_dapm_nc_pin(codec, "LINPUT2"); |
118 | snd_soc_dapm_nc_pin(codec, "RINPUT2"); | |
119 | snd_soc_dapm_nc_pin(codec, "LINPUT3"); | |
120 | snd_soc_dapm_nc_pin(codec, "RINPUT3"); | |
121 | snd_soc_dapm_nc_pin(codec, "OUT3"); | |
122 | snd_soc_dapm_nc_pin(codec, "MONO"); | |
3093e48c BD |
123 | |
124 | /* Add jive specific widgets */ | |
125 | err = snd_soc_dapm_new_controls(codec, wm8750_dapm_widgets, | |
126 | ARRAY_SIZE(wm8750_dapm_widgets)); | |
127 | if (err) { | |
128 | printk(KERN_ERR "%s: failed to add widgets (%d)\n", | |
129 | __func__, err); | |
130 | return err; | |
131 | } | |
132 | ||
133 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
134 | snd_soc_dapm_sync(codec); | |
135 | ||
136 | return 0; | |
137 | } | |
138 | ||
139 | static struct snd_soc_dai_link jive_dai = { | |
140 | .name = "wm8750", | |
141 | .stream_name = "WM8750", | |
f0fba2ad LG |
142 | .cpu_dai_name = "s3c2412-i2s", |
143 | .codec_dai_name = "wm8750-hifi", | |
144 | .platform_name = "s3c24xx-pcm-audio", | |
145 | .codec_name = "wm8750-codec.0-0x1a", | |
3093e48c BD |
146 | .init = jive_wm8750_init, |
147 | .ops = &jive_ops, | |
148 | }; | |
149 | ||
150 | /* jive audio machine driver */ | |
01c4cad4 | 151 | static struct snd_soc_card snd_soc_machine_jive = { |
3093e48c BD |
152 | .name = "Jive", |
153 | .dai_link = &jive_dai, | |
154 | .num_links = 1, | |
155 | }; | |
156 | ||
3093e48c BD |
157 | static struct platform_device *jive_snd_device; |
158 | ||
159 | static int __init jive_init(void) | |
160 | { | |
161 | int ret; | |
162 | ||
163 | if (!machine_is_jive()) | |
164 | return 0; | |
165 | ||
166 | printk("JIVE WM8750 Audio support\n"); | |
167 | ||
168 | jive_snd_device = platform_device_alloc("soc-audio", -1); | |
169 | if (!jive_snd_device) | |
170 | return -ENOMEM; | |
171 | ||
f0fba2ad | 172 | platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive); |
3093e48c BD |
173 | ret = platform_device_add(jive_snd_device); |
174 | ||
175 | if (ret) | |
176 | platform_device_put(jive_snd_device); | |
177 | ||
178 | return ret; | |
179 | } | |
180 | ||
181 | static void __exit jive_exit(void) | |
182 | { | |
183 | platform_device_unregister(jive_snd_device); | |
184 | } | |
185 | ||
186 | module_init(jive_init); | |
187 | module_exit(jive_exit); | |
188 | ||
189 | MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>"); | |
190 | MODULE_DESCRIPTION("ALSA SoC Jive Audio support"); | |
191 | MODULE_LICENSE("GPL"); |