1 /*
2 * tavorevb3.c -- SoC audio for Tavor EVB3
3 *
4 * Copyright (C) 2010 Marvell International Ltd.
5 * Haojian Zhuang <haojian.zhuang@marvell.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/device.h>
15 #include <linux/clk.h>
16 #include <linux/i2c.h>
17 #include <sound/core.h>
18 #include <sound/pcm.h>
19 #include <sound/pcm_params.h>
20 #include <sound/soc.h>
21 #include <sound/jack.h>
22
23 #include <asm/mach-types.h>
24
25 #include "../codecs/88pm860x-codec.h"
26 #include "pxa-ssp.h"
27
28 static int evb3_pm860x_init(struct snd_soc_pcm_runtime *rtd);
29
30 static struct platform_device *evb3_snd_device;
31
32 static struct snd_soc_jack hs_jack, mic_jack;
33
34 static struct snd_soc_jack_pin hs_jack_pins[] = {
35 { .pin = "Headset Stereophone", .mask = SND_JACK_HEADPHONE, },
36 };
37
38 static struct snd_soc_jack_pin mic_jack_pins[] = {
39 { .pin = "Headset Mic 2", .mask = SND_JACK_MICROPHONE, },
40 };
41
42 /* tavorevb3 machine dapm widgets */
43 static const struct snd_soc_dapm_widget evb3_dapm_widgets[] = {
44 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
45 SND_SOC_DAPM_LINE("Lineout Out 1", NULL),
46 SND_SOC_DAPM_LINE("Lineout Out 2", NULL),
47 SND_SOC_DAPM_SPK("Ext Speaker", NULL),
48 SND_SOC_DAPM_MIC("Ext Mic 1", NULL),
49 SND_SOC_DAPM_MIC("Headset Mic 2", NULL),
50 SND_SOC_DAPM_MIC("Ext Mic 3", NULL),
51 };
52
53 /* tavorevb3 machine audio map */
54 static const struct snd_soc_dapm_route evb3_audio_map[] = {
55 {"Headset Stereophone", NULL, "HS1"},
56 {"Headset Stereophone", NULL, "HS2"},
57
58 {"Ext Speaker", NULL, "LSP"},
59 {"Ext Speaker", NULL, "LSN"},
60
61 {"Lineout Out 1", NULL, "LINEOUT1"},
62 {"Lineout Out 2", NULL, "LINEOUT2"},
63
64 {"MIC1P", NULL, "Mic1 Bias"},
65 {"MIC1N", NULL, "Mic1 Bias"},
66 {"Mic1 Bias", NULL, "Ext Mic 1"},
67
68 {"MIC2P", NULL, "Mic1 Bias"},
69 {"MIC2N", NULL, "Mic1 Bias"},
70 {"Mic1 Bias", NULL, "Headset Mic 2"},
71
72 {"MIC3P", NULL, "Mic3 Bias"},
73 {"MIC3N", NULL, "Mic3 Bias"},
74 {"Mic3 Bias", NULL, "Ext Mic 3"},
75 };
76
evb3_i2s_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)77 static int evb3_i2s_hw_params(struct snd_pcm_substream *substream,
78 struct snd_pcm_hw_params *params)
79 {
80 struct snd_soc_pcm_runtime *rtd = substream->private_data;
81 struct snd_soc_dai *codec_dai = rtd->codec_dai;
82 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
83 int width = snd_pcm_format_physical_width(params_format(params));
84 int ret;
85
86 ret = snd_soc_dai_set_sysclk(cpu_dai, PXA_SSP_CLK_NET_PLL, 0,
87 PM860X_CLK_DIR_OUT);
88 if (ret < 0)
89 return ret;
90
91 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 0, PM860X_CLK_DIR_OUT);
92 if (ret < 0)
93 return ret;
94
95 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 3, 3, 2, width);
96 return ret;
97 }
98
99 static struct snd_soc_ops evb3_i2s_ops = {
100 .hw_params = evb3_i2s_hw_params,
101 };
102
103 static struct snd_soc_dai_link evb3_dai[] = {
104 {
105 .name = "88PM860x I2S",
106 .stream_name = "I2S Audio",
107 .cpu_dai_name = "pxa-ssp-dai.1",
108 .codec_dai_name = "88pm860x-i2s",
109 .platform_name = "pxa-pcm-audio",
110 .codec_name = "88pm860x-codec",
111 .init = evb3_pm860x_init,
112 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
113 SND_SOC_DAIFMT_CBM_CFM,
114 .ops = &evb3_i2s_ops,
115 },
116 };
117
118 static struct snd_soc_card snd_soc_card_evb3 = {
119 .name = "Tavor EVB3",
120 .owner = THIS_MODULE,
121 .dai_link = evb3_dai,
122 .num_links = ARRAY_SIZE(evb3_dai),
123
124 .dapm_widgets = evb3_dapm_widgets,
125 .num_dapm_widgets = ARRAY_SIZE(evb3_dapm_widgets),
126 .dapm_routes = evb3_audio_map,
127 .num_dapm_routes = ARRAY_SIZE(evb3_audio_map),
128 };
129
evb3_pm860x_init(struct snd_soc_pcm_runtime * rtd)130 static int evb3_pm860x_init(struct snd_soc_pcm_runtime *rtd)
131 {
132 struct snd_soc_codec *codec = rtd->codec;
133 struct snd_soc_dapm_context *dapm = &codec->dapm;
134
135 /* connected pins */
136 snd_soc_dapm_enable_pin(dapm, "Ext Speaker");
137 snd_soc_dapm_enable_pin(dapm, "Ext Mic 1");
138 snd_soc_dapm_enable_pin(dapm, "Ext Mic 3");
139 snd_soc_dapm_disable_pin(dapm, "Headset Mic 2");
140 snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
141
142 /* Headset jack detection */
143 snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE
144 | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
145 &hs_jack);
146 snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
147 hs_jack_pins);
148 snd_soc_jack_new(codec, "Microphone Jack", SND_JACK_MICROPHONE,
149 &mic_jack);
150 snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
151 mic_jack_pins);
152
153 /* headphone, microphone detection & headset short detection */
154 pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
155 SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
156 pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
157 return 0;
158 }
159
tavorevb3_init(void)160 static int __init tavorevb3_init(void)
161 {
162 int ret;
163
164 if (!machine_is_tavorevb3())
165 return -ENODEV;
166 evb3_snd_device = platform_device_alloc("soc-audio", -1);
167 if (!evb3_snd_device)
168 return -ENOMEM;
169
170 platform_set_drvdata(evb3_snd_device, &snd_soc_card_evb3);
171
172 ret = platform_device_add(evb3_snd_device);
173 if (ret)
174 platform_device_put(evb3_snd_device);
175
176 return ret;
177 }
178
tavorevb3_exit(void)179 static void __exit tavorevb3_exit(void)
180 {
181 platform_device_unregister(evb3_snd_device);
182 }
183
184 module_init(tavorevb3_init);
185 module_exit(tavorevb3_exit);
186
187 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
188 MODULE_DESCRIPTION("ALSA SoC 88PM860x Tavor EVB3");
189 MODULE_LICENSE("GPL");
190