📄 wm9705.c
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1 /*
2 * wm9705.c -- ALSA Soc WM9705 codec support
3 *
4 * Copyright 2008 Ian Molton <spyro@f2s.com>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; Version 2 of the License only.
9 *
10 */
11
12 #include <linux/init.h>
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/device.h>
16 #include <sound/core.h>
17 #include <sound/pcm.h>
18 #include <sound/ac97_codec.h>
19 #include <sound/initval.h>
20 #include <sound/soc.h>
21 #include <sound/soc-dapm.h>
22
23 #include "wm9705.h"
24
25 /*
26 * WM9705 register cache
27 */
28 static const u16 wm9705_reg[] = {
29 0x6150, 0x8000, 0x8000, 0x8000, /* 0x0 */
30 0x0000, 0x8000, 0x8008, 0x8008, /* 0x8 */
31 0x8808, 0x8808, 0x8808, 0x8808, /* 0x10 */
32 0x8808, 0x0000, 0x8000, 0x0000, /* 0x18 */
33 0x0000, 0x0000, 0x0000, 0x000f, /* 0x20 */
34 0x0605, 0x0000, 0xbb80, 0x0000, /* 0x28 */
35 0x0000, 0xbb80, 0x0000, 0x0000, /* 0x30 */
36 0x0000, 0x2000, 0x0000, 0x0000, /* 0x38 */
37 0x0000, 0x0000, 0x0000, 0x0000, /* 0x40 */
38 0x0000, 0x0000, 0x0000, 0x0000, /* 0x48 */
39 0x0000, 0x0000, 0x0000, 0x0000, /* 0x50 */
40 0x0000, 0x0000, 0x0000, 0x0000, /* 0x58 */
41 0x0000, 0x0000, 0x0000, 0x0000, /* 0x60 */
42 0x0000, 0x0000, 0x0000, 0x0000, /* 0x68 */
43 0x0000, 0x0808, 0x0000, 0x0006, /* 0x70 */
44 0x0000, 0x0000, 0x574d, 0x4c05, /* 0x78 */
45 };
46
47 static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = {
48 SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
49 SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
50 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
51 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
52 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
53 SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
54 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
55 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
56 SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1),
57 SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1),
58 SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1),
59 SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1),
60 SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1),
61 SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0),
62 SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0),
63 SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),
64 };
65
66 static const char *wm9705_mic[] = {"Mic 1", "Mic 2"};
67 static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC",
68 "Line", "Stereo Mix", "Mono Mix", "Phone"};
69
70 static const struct soc_enum wm9705_enum_mic =
71 SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, wm9705_mic);
72 static const struct soc_enum wm9705_enum_rec_l =
73 SOC_ENUM_SINGLE(AC97_REC_SEL, 8, 8, wm9705_rec_sel);
74 static const struct soc_enum wm9705_enum_rec_r =
75 SOC_ENUM_SINGLE(AC97_REC_SEL, 0, 8, wm9705_rec_sel);
76
77 /* Headphone Mixer */
78 static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = {
79 SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
80 SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1),
81 SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1),
82 SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1),
83 SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1),
84 };
85
86 /* Mic source */
87 static const struct snd_kcontrol_new wm9705_mic_src_controls =
88 SOC_DAPM_ENUM("Route", wm9705_enum_mic);
89
90 /* Capture source */
91 static const struct snd_kcontrol_new wm9705_capture_selectl_controls =
92 SOC_DAPM_ENUM("Route", wm9705_enum_rec_l);
93 static const struct snd_kcontrol_new wm9705_capture_selectr_controls =
94 SOC_DAPM_ENUM("Route", wm9705_enum_rec_r);
95
96 /* DAPM widgets */
97 static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = {
98 SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0,
99 &wm9705_mic_src_controls),
100 SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0,
101 &wm9705_capture_selectl_controls),
102 SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0,
103 &wm9705_capture_selectr_controls),
104 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
105 SND_SOC_NOPM, 0, 0),
106 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
107 SND_SOC_NOPM, 0, 0),
108 SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0,
109 &wm9705_hp_mixer_controls[0],
110 ARRAY_SIZE(wm9705_hp_mixer_controls)),
111 SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
112 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0),
113 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0),
114 SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
115 SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
116 SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
117 SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
118 SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
119 SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
120 SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
121 SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
122 SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
123 SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
124 SND_SOC_DAPM_OUTPUT("HPOUTL"),
125 SND_SOC_DAPM_OUTPUT("HPOUTR"),
126 SND_SOC_DAPM_OUTPUT("LOUT"),
127 SND_SOC_DAPM_OUTPUT("ROUT"),
128 SND_SOC_DAPM_OUTPUT("MONOOUT"),
129 SND_SOC_DAPM_INPUT("PHONE"),
130 SND_SOC_DAPM_INPUT("LINEINL"),
131 SND_SOC_DAPM_INPUT("LINEINR"),
132 SND_SOC_DAPM_INPUT("CDINL"),
133 SND_SOC_DAPM_INPUT("CDINR"),
134 SND_SOC_DAPM_INPUT("PCBEEP"),
135 SND_SOC_DAPM_INPUT("MIC1"),
136 SND_SOC_DAPM_INPUT("MIC2"),
137 };
138
139 /* Audio map
140 * WM9705 has no switches to disable the route from the inputs to the HP mixer
141 * so in order to prevent active inputs from forcing the audio outputs to be
142 * constantly enabled, we use the mutes on those inputs to simulate such
143 * controls.
144 */
145 static const struct snd_soc_dapm_route audio_map[] = {
146 /* HP mixer */
147 {"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"},
148 {"HP Mixer", "CD Playback Switch", "CD PGA"},
149 {"HP Mixer", "Mic Playback Switch", "Mic PGA"},
150 {"HP Mixer", "Phone Playback Switch", "Phone PGA"},
151 {"HP Mixer", "Line Playback Switch", "Line PGA"},
152 {"HP Mixer", NULL, "Left DAC"},
153 {"HP Mixer", NULL, "Right DAC"},
154
155 /* mono mixer */
156 {"Mono Mixer", NULL, "HP Mixer"},
157
158 /* outputs */
159 {"Headphone PGA", NULL, "HP Mixer"},
160 {"HPOUTL", NULL, "Headphone PGA"},
161 {"HPOUTR", NULL, "Headphone PGA"},
162 {"Line out PGA", NULL, "HP Mixer"},
163 {"LOUT", NULL, "Line out PGA"},
164 {"ROUT", NULL, "Line out PGA"},
165 {"Mono PGA", NULL, "Mono Mixer"},
166 {"MONOOUT", NULL, "Mono PGA"},
167
168 /* inputs */
169 {"CD PGA", NULL, "CDINL"},
170 {"CD PGA", NULL, "CDINR"},
171 {"Line PGA", NULL, "LINEINL"},
172 {"Line PGA", NULL, "LINEINR"},
173 {"Phone PGA", NULL, "PHONE"},
174 {"Mic Source", "Mic 1", "MIC1"},
175 {"Mic Source", "Mic 2", "MIC2"},
176 {"Mic PGA", NULL, "Mic Source"},
177 {"PCBEEP PGA", NULL, "PCBEEP"},
178
179 /* Left capture selector */
180 {"Left Capture Source", "Mic", "Mic Source"},
181 {"Left Capture Source", "CD", "CDINL"},
182 {"Left Capture Source", "Line", "LINEINL"},
183 {"Left Capture Source", "Stereo Mix", "HP Mixer"},
184 {"Left Capture Source", "Mono Mix", "HP Mixer"},
185 {"Left Capture Source", "Phone", "PHONE"},
186
187 /* Right capture source */
188 {"Right Capture Source", "Mic", "Mic Source"},
189 {"Right Capture Source", "CD", "CDINR"},
190 {"Right Capture Source", "Line", "LINEINR"},
191 {"Right Capture Source", "Stereo Mix", "HP Mixer"},
192 {"Right Capture Source", "Mono Mix", "HP Mixer"},
193 {"Right Capture Source", "Phone", "PHONE"},
194
195 {"ADC PGA", NULL, "Left Capture Source"},
196 {"ADC PGA", NULL, "Right Capture Source"},
197
198 /* ADC's */
199 {"Left ADC", NULL, "ADC PGA"},
200 {"Right ADC", NULL, "ADC PGA"},
201 };
202
203 static int wm9705_add_widgets(struct snd_soc_codec *codec)
204 {
205 snd_soc_dapm_new_controls(codec, wm9705_dapm_widgets,
206 ARRAY_SIZE(wm9705_dapm_widgets));
207 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
208 snd_soc_dapm_new_widgets(codec);
209
210 return 0;
211 }
212
213 /* We use a register cache to enhance read performance. */
214 static unsigned int ac97_read(struct snd_soc_codec *codec, unsigned int reg)
215 {
216 u16 *cache = codec->reg_cache;
217
218 switch (reg) {
219 case AC97_RESET:
220 case AC97_VENDOR_ID1:
221 case AC97_VENDOR_ID2:
222 return soc_ac97_ops.read(codec->ac97, reg);
223 default:
224 reg = reg >> 1;
225
226 if (reg >= (ARRAY_SIZE(wm9705_reg)))
227 return -EIO;
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