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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> | |
25 | #include <sound/soc-dapm.h> | |
26 | ||
27 | #include <asm/mach-types.h> | |
28 | #include <mach/hardware.h> | |
29 | #include <mach/gpio.h> | |
30 | #include <plat/mcbsp.h> | |
31 | ||
32 | #include "omap-mcbsp.h" | |
33 | #include "omap-pcm.h" | |
34 | ||
35 | #include "../codecs/tlv320aic23.h" | |
36 | ||
37 | #define CODEC_CLOCK 12000000 | |
38 | ||
39 | static int am3517evm_hw_params(struct snd_pcm_substream *substream, | |
40 | struct snd_pcm_hw_params *params) | |
41 | { | |
42 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
43 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
44 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
89e9abe7 AA |
45 | int ret; |
46 | ||
47 | /* Set codec DAI configuration */ | |
48 | ret = snd_soc_dai_set_fmt(codec_dai, | |
49 | SND_SOC_DAIFMT_DSP_B | | |
50 | SND_SOC_DAIFMT_NB_NF | | |
51 | SND_SOC_DAIFMT_CBM_CFM); | |
52 | if (ret < 0) { | |
53 | printk(KERN_ERR "can't set codec DAI configuration\n"); | |
54 | return ret; | |
55 | } | |
56 | ||
57 | /* Set cpu DAI configuration */ | |
58 | ret = snd_soc_dai_set_fmt(cpu_dai, | |
59 | SND_SOC_DAIFMT_DSP_B | | |
60 | SND_SOC_DAIFMT_NB_NF | | |
61 | SND_SOC_DAIFMT_CBM_CFM); | |
62 | if (ret < 0) { | |
63 | printk(KERN_ERR "can't set cpu DAI configuration\n"); | |
64 | return ret; | |
65 | } | |
66 | ||
67 | /* Set the codec system clock for DAC and ADC */ | |
68 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, | |
69 | CODEC_CLOCK, SND_SOC_CLOCK_IN); | |
70 | if (ret < 0) { | |
71 | printk(KERN_ERR "can't set codec system clock\n"); | |
72 | return ret; | |
73 | } | |
74 | ||
75 | ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_CLKR_SRC_CLKX, 0, | |
76 | SND_SOC_CLOCK_IN); | |
77 | if (ret < 0) { | |
78 | printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_CLKR_SRC_CLKX\n"); | |
79 | return ret; | |
80 | } | |
81 | ||
82 | snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_FSR_SRC_FSX, 0, | |
83 | SND_SOC_CLOCK_IN); | |
84 | if (ret < 0) { | |
85 | printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_FSR_SRC_FSX\n"); | |
86 | return ret; | |
87 | } | |
88 | ||
89 | return 0; | |
90 | } | |
91 | ||
92 | static struct snd_soc_ops am3517evm_ops = { | |
93 | .hw_params = am3517evm_hw_params, | |
94 | }; | |
95 | ||
96 | /* am3517evm machine dapm widgets */ | |
97 | static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = { | |
98 | SND_SOC_DAPM_HP("Line Out", NULL), | |
99 | SND_SOC_DAPM_LINE("Line In", NULL), | |
100 | SND_SOC_DAPM_MIC("Mic In", NULL), | |
101 | }; | |
102 | ||
103 | static const struct snd_soc_dapm_route audio_map[] = { | |
104 | /* Line Out connected to LLOUT, RLOUT */ | |
105 | {"Line Out", NULL, "LOUT"}, | |
106 | {"Line Out", NULL, "ROUT"}, | |
107 | ||
108 | {"LLINEIN", NULL, "Line In"}, | |
109 | {"RLINEIN", NULL, "Line In"}, | |
110 | ||
111 | {"MICIN", NULL, "Mic In"}, | |
112 | }; | |
113 | ||
f0fba2ad | 114 | static int am3517evm_aic23_init(struct snd_soc_pcm_runtime *rtd) |
89e9abe7 | 115 | { |
f0fba2ad LG |
116 | struct snd_soc_codec *codec = rtd->codec; |
117 | ||
89e9abe7 AA |
118 | /* Add am3517-evm specific widgets */ |
119 | snd_soc_dapm_new_controls(codec, tlv320aic23_dapm_widgets, | |
120 | ARRAY_SIZE(tlv320aic23_dapm_widgets)); | |
121 | ||
122 | /* Set up davinci-evm specific audio path audio_map */ | |
123 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
124 | ||
125 | /* always connected */ | |
126 | snd_soc_dapm_enable_pin(codec, "Line Out"); | |
127 | snd_soc_dapm_enable_pin(codec, "Line In"); | |
128 | snd_soc_dapm_enable_pin(codec, "Mic In"); | |
129 | ||
130 | snd_soc_dapm_sync(codec); | |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
135 | /* Digital audio interface glue - connects codec <--> CPU */ | |
136 | static struct snd_soc_dai_link am3517evm_dai = { | |
137 | .name = "TLV320AIC23", | |
138 | .stream_name = "AIC23", | |
f0fba2ad LG |
139 | .cpu_dai_name ="omap-mcbsp-dai.0", |
140 | .codec_dai_name = "tlv320aic23-hifi", | |
141 | .platform_name = "omap-pcm-audio", | |
142 | .codec_name = "tlv320aic23-codec", | |
89e9abe7 AA |
143 | .init = am3517evm_aic23_init, |
144 | .ops = &am3517evm_ops, | |
145 | }; | |
146 | ||
147 | /* Audio machine driver */ | |
148 | static struct snd_soc_card snd_soc_am3517evm = { | |
149 | .name = "am3517evm", | |
89e9abe7 AA |
150 | .dai_link = &am3517evm_dai, |
151 | .num_links = 1, | |
152 | }; | |
153 | ||
89e9abe7 AA |
154 | static struct platform_device *am3517evm_snd_device; |
155 | ||
156 | static int __init am3517evm_soc_init(void) | |
157 | { | |
158 | int ret; | |
159 | ||
ec588ae6 | 160 | if (!machine_is_omap3517evm()) |
89e9abe7 | 161 | return -ENODEV; |
89e9abe7 AA |
162 | pr_info("OMAP3517 / AM3517 EVM SoC init\n"); |
163 | ||
164 | am3517evm_snd_device = platform_device_alloc("soc-audio", -1); | |
165 | if (!am3517evm_snd_device) { | |
166 | printk(KERN_ERR "Platform device allocation failed\n"); | |
167 | return -ENOMEM; | |
168 | } | |
169 | ||
f0fba2ad | 170 | platform_set_drvdata(am3517evm_snd_device, &snd_soc_am3517evm); |
89e9abe7 AA |
171 | |
172 | ret = platform_device_add(am3517evm_snd_device); | |
173 | if (ret) | |
174 | goto err1; | |
175 | ||
176 | return 0; | |
177 | ||
178 | err1: | |
179 | printk(KERN_ERR "Unable to add platform device\n"); | |
180 | platform_device_put(am3517evm_snd_device); | |
181 | ||
182 | return ret; | |
183 | } | |
184 | ||
185 | static void __exit am3517evm_soc_exit(void) | |
186 | { | |
187 | platform_device_unregister(am3517evm_snd_device); | |
188 | } | |
189 | ||
190 | module_init(am3517evm_soc_init); | |
191 | module_exit(am3517evm_soc_exit); | |
192 | ||
193 | MODULE_AUTHOR("Anuj Aggarwal <anuj.aggarwal@ti.com>"); | |
194 | MODULE_DESCRIPTION("ALSA SoC OMAP3517 / AM3517 EVM"); | |
195 | MODULE_LICENSE("GPL v2"); |