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89e9abe7 AA |
1 | /* |
2 | * am3517evm.c -- ALSA SoC support for OMAP3517 / AM3517 EVM | |
3 | * | |
4 | * Author: Anuj Aggarwal <anuj.aggarwal@ti.com> | |
5 | * | |
6 | * Based on sound/soc/omap/beagle.c by Steve Sakoman | |
7 | * | |
8 | * Copyright (C) 2009 Texas Instruments Incorporated | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation version 2. | |
13 | * | |
14 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, | |
15 | * whether express or implied; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | */ | |
19 | ||
20 | #include <linux/clk.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <sound/core.h> | |
23 | #include <sound/pcm.h> | |
24 | #include <sound/soc.h> | |
89e9abe7 AA |
25 | |
26 | #include <asm/mach-types.h> | |
27 | #include <mach/hardware.h> | |
28 | #include <mach/gpio.h> | |
29 | #include <plat/mcbsp.h> | |
30 | ||
31 | #include "omap-mcbsp.h" | |
32 | #include "omap-pcm.h" | |
33 | ||
34 | #include "../codecs/tlv320aic23.h" | |
35 | ||
36 | #define CODEC_CLOCK 12000000 | |
37 | ||
38 | static int am3517evm_hw_params(struct snd_pcm_substream *substream, | |
39 | struct snd_pcm_hw_params *params) | |
40 | { | |
41 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
42 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
43 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
89e9abe7 AA |
44 | int ret; |
45 | ||
89e9abe7 AA |
46 | /* Set the codec system clock for DAC and ADC */ |
47 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, | |
48 | CODEC_CLOCK, SND_SOC_CLOCK_IN); | |
49 | if (ret < 0) { | |
50 | printk(KERN_ERR "can't set codec system clock\n"); | |
51 | return ret; | |
52 | } | |
53 | ||
54 | ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_CLKR_SRC_CLKX, 0, | |
55 | SND_SOC_CLOCK_IN); | |
56 | if (ret < 0) { | |
57 | printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_CLKR_SRC_CLKX\n"); | |
58 | return ret; | |
59 | } | |
60 | ||
61 | snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_FSR_SRC_FSX, 0, | |
62 | SND_SOC_CLOCK_IN); | |
63 | if (ret < 0) { | |
64 | printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_FSR_SRC_FSX\n"); | |
65 | return ret; | |
66 | } | |
67 | ||
68 | return 0; | |
69 | } | |
70 | ||
71 | static struct snd_soc_ops am3517evm_ops = { | |
72 | .hw_params = am3517evm_hw_params, | |
73 | }; | |
74 | ||
75 | /* am3517evm machine dapm widgets */ | |
76 | static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { | |
77 | SND_SOC_DAPM_HP("Line Out", NULL), | |
78 | SND_SOC_DAPM_LINE("Line In", NULL), | |
79 | SND_SOC_DAPM_MIC("Mic In", NULL), | |
80 | }; | |
81 | ||
82 | static const struct snd_soc_dapm_route audio_map[] = { | |
83 | /* Line Out connected to LLOUT, RLOUT */ | |
84 | {"Line Out", NULL, "LOUT"}, | |
85 | {"Line Out", NULL, "ROUT"}, | |
86 | ||
87 | {"LLINEIN", NULL, "Line In"}, | |
88 | {"RLINEIN", NULL, "Line In"}, | |
89 | ||
90 | {"MICIN", NULL, "Mic In"}, | |
91 | }; | |
92 | ||
f0fba2ad | 93 | static int am3517evm_aic23_init(struct snd_soc_pcm_runtime *rtd) |
89e9abe7 | 94 | { |
f0fba2ad | 95 | struct snd_soc_codec *codec = rtd->codec; |
ce6120cc | 96 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
f0fba2ad | 97 | |
89e9abe7 | 98 | /* Add am3517-evm specific widgets */ |
ce6120cc | 99 | snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets, |
89e9abe7 AA |
100 | ARRAY_SIZE(tlv320aic23_dapm_widgets)); |
101 | ||
102 | /* Set up davinci-evm specific audio path audio_map */ | |
ce6120cc | 103 | snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); |
89e9abe7 AA |
104 | |
105 | /* always connected */ | |
ce6120cc LG |
106 | snd_soc_dapm_enable_pin(dapm, "Line Out"); |
107 | snd_soc_dapm_enable_pin(dapm, "Line In"); | |
108 | snd_soc_dapm_enable_pin(dapm, "Mic In"); | |
89e9abe7 | 109 | |
89e9abe7 AA |
110 | return 0; |
111 | } | |
112 | ||
113 | /* Digital audio interface glue - connects codec <--> CPU */ | |
114 | static struct snd_soc_dai_link am3517evm_dai = { | |
115 | .name = "TLV320AIC23", | |
116 | .stream_name = "AIC23", | |
f0fba2ad LG |
117 | .cpu_dai_name ="omap-mcbsp-dai.0", |
118 | .codec_dai_name = "tlv320aic23-hifi", | |
119 | .platform_name = "omap-pcm-audio", | |
ffd6eae2 | 120 | .codec_name = "tlv320aic23-codec.2-001a", |
cf9feff2 JN |
121 | .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF | |
122 | SND_SOC_DAIFMT_CBM_CFM, | |
89e9abe7 AA |
123 | .init = am3517evm_aic23_init, |
124 | .ops = &am3517evm_ops, | |
125 | }; | |
126 | ||
127 | /* Audio machine driver */ | |
128 | static struct snd_soc_card snd_soc_am3517evm = { | |
129 | .name = "am3517evm", | |
89e9abe7 AA |
130 | .dai_link = &am3517evm_dai, |
131 | .num_links = 1, | |
132 | }; | |
133 | ||
89e9abe7 AA |
134 | static struct platform_device *am3517evm_snd_device; |
135 | ||
136 | static int __init am3517evm_soc_init(void) | |
137 | { | |
138 | int ret; | |
139 | ||
ec588ae6 | 140 | if (!machine_is_omap3517evm()) |
89e9abe7 | 141 | return -ENODEV; |
89e9abe7 AA |
142 | pr_info("OMAP3517 / AM3517 EVM SoC init\n"); |
143 | ||
144 | am3517evm_snd_device = platform_device_alloc("soc-audio", -1); | |
145 | if (!am3517evm_snd_device) { | |
146 | printk(KERN_ERR "Platform device allocation failed\n"); | |
147 | return -ENOMEM; | |
148 | } | |
149 | ||
f0fba2ad | 150 | platform_set_drvdata(am3517evm_snd_device, &snd_soc_am3517evm); |
89e9abe7 AA |
151 | |
152 | ret = platform_device_add(am3517evm_snd_device); | |
153 | if (ret) | |
154 | goto err1; | |
155 | ||
156 | return 0; | |
157 | ||
158 | err1: | |
159 | printk(KERN_ERR "Unable to add platform device\n"); | |
160 | platform_device_put(am3517evm_snd_device); | |
161 | ||
162 | return ret; | |
163 | } | |
164 | ||
165 | static void __exit am3517evm_soc_exit(void) | |
166 | { | |
167 | platform_device_unregister(am3517evm_snd_device); | |
168 | } | |
169 | ||
170 | module_init(am3517evm_soc_init); | |
171 | module_exit(am3517evm_soc_exit); | |
172 | ||
173 | MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>"); | |
174 | MODULE_DESCRIPTION("ALSA SoC OMAP3517 / AM3517 EVM"); | |
175 | MODULE_LICENSE("GPL v2"); |