1 /*
2 * saarb.c -- SoC audio for saarb
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 saarb_pm860x_init(struct snd_soc_pcm_runtime *rtd);
29
30 static struct platform_device *saarb_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 /* saarb machine dapm widgets */
43 static const struct snd_soc_dapm_widget saarb_dapm_widgets[] = {
44 SND_SOC_DAPM_HP("Headphone 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", NULL),
50 SND_SOC_DAPM_MIC("Ext Mic 3", NULL),
51 };
52
53 /* saarb machine audio map */
54 static const struct snd_soc_dapm_route saarb_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
saarb_i2s_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)77 static int saarb_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
97 return ret;
98 }
99
100 static struct snd_soc_ops saarb_i2s_ops = {
101 .hw_params = saarb_i2s_hw_params,
102 };
103
104 static struct snd_soc_dai_link saarb_dai[] = {
105 {
106 .name = "88PM860x I2S",
107 .stream_name = "I2S Audio",
108 .cpu_dai_name = "pxa-ssp-dai.1",
109 .codec_dai_name = "88pm860x-i2s",
110 .platform_name = "pxa-pcm-audio",
111 .codec_name = "88pm860x-codec",
112 .init = saarb_pm860x_init,
113 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
114 SND_SOC_DAIFMT_CBM_CFM,
115 .ops = &saarb_i2s_ops,
116 },
117 };
118
119 static struct snd_soc_card snd_soc_card_saarb = {
120 .name = "Saarb",
121 .owner = THIS_MODULE,
122 .dai_link = saarb_dai,
123 .num_links = ARRAY_SIZE(saarb_dai),
124
125 .dapm_widgets = saarb_dapm_widgets,
126 .num_dapm_widgets = ARRAY_SIZE(saarb_dapm_widgets),
127 .dapm_routes = saarb_audio_map,
128 .num_dapm_routes = ARRAY_SIZE(saarb_audio_map),
129 };
130
saarb_pm860x_init(struct snd_soc_pcm_runtime * rtd)131 static int saarb_pm860x_init(struct snd_soc_pcm_runtime *rtd)
132 {
133 struct snd_soc_codec *codec = rtd->codec;
134 struct snd_soc_dapm_context *dapm = &codec->dapm;
135
136 /* connected pins */
137 snd_soc_dapm_enable_pin(dapm, "Ext Speaker");
138 snd_soc_dapm_enable_pin(dapm, "Ext Mic 1");
139 snd_soc_dapm_enable_pin(dapm, "Ext Mic 3");
140 snd_soc_dapm_disable_pin(dapm, "Headset Mic 2");
141 snd_soc_dapm_disable_pin(dapm, "Headset Stereophone");
142
143 /* Headset jack detection */
144 snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE
145 | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2,
146 &hs_jack);
147 snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
148 hs_jack_pins);
149 snd_soc_jack_new(codec, "Microphone Jack", SND_JACK_MICROPHONE,
150 &mic_jack);
151 snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
152 mic_jack_pins);
153
154 /* headphone, microphone detection & headset short detection */
155 pm860x_hs_jack_detect(codec, &hs_jack, SND_JACK_HEADPHONE,
156 SND_JACK_BTN_0, SND_JACK_BTN_1, SND_JACK_BTN_2);
157 pm860x_mic_jack_detect(codec, &hs_jack, SND_JACK_MICROPHONE);
158 return 0;
159 }
160
saarb_init(void)161 static int __init saarb_init(void)
162 {
163 int ret;
164
165 if (!machine_is_saarb())
166 return -ENODEV;
167 saarb_snd_device = platform_device_alloc("soc-audio", -1);
168 if (!saarb_snd_device)
169 return -ENOMEM;
170
171 platform_set_drvdata(saarb_snd_device, &snd_soc_card_saarb);
172
173 ret = platform_device_add(saarb_snd_device);
174 if (ret)
175 platform_device_put(saarb_snd_device);
176
177 return ret;
178 }
179
saarb_exit(void)180 static void __exit saarb_exit(void)
181 {
182 platform_device_unregister(saarb_snd_device);
183 }
184
185 module_init(saarb_init);
186 module_exit(saarb_exit);
187
188 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
189 MODULE_DESCRIPTION("ALSA SoC 88PM860x Saarb");
190 MODULE_LICENSE("GPL");
191