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1 | /* |
2 | * wm8988.c -- WM8988 ALSA SoC audio driver | |
3 | * | |
4 | * Copyright 2009 Wolfson Microelectronics plc | |
5 | * Copyright 2005 Openedhand Ltd. | |
6 | * | |
7 | * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #include <linux/module.h> | |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/delay.h> | |
18 | #include <linux/pm.h> | |
19 | #include <linux/i2c.h> | |
20 | #include <linux/spi/spi.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <sound/core.h> | |
23 | #include <sound/pcm.h> | |
24 | #include <sound/pcm_params.h> | |
25 | #include <sound/tlv.h> | |
26 | #include <sound/soc.h> | |
27 | #include <sound/soc-dapm.h> | |
28 | #include <sound/initval.h> | |
29 | ||
30 | #include "wm8988.h" | |
31 | ||
32 | /* | |
33 | * wm8988 register cache | |
34 | * We can't read the WM8988 register space when we | |
35 | * are using 2 wire for device control, so we cache them instead. | |
36 | */ | |
37 | static const u16 wm8988_reg[] = { | |
38 | 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */ | |
39 | 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */ | |
40 | 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */ | |
41 | 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */ | |
42 | 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */ | |
43 | 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */ | |
44 | 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */ | |
45 | 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */ | |
46 | 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */ | |
47 | 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */ | |
48 | 0x0079, 0x0079, 0x0079, /* 40 */ | |
49 | }; | |
50 | ||
51 | /* codec private data */ | |
52 | struct wm8988_priv { | |
53 | unsigned int sysclk; | |
54 | struct snd_soc_codec codec; | |
55 | struct snd_pcm_hw_constraint_list *sysclk_constraints; | |
56 | u16 reg_cache[WM8988_NUM_REG]; | |
57 | }; | |
58 | ||
59 | ||
17a52fd6 | 60 | #define wm8988_reset(c) snd_soc_write(c, WM8988_RESET, 0) |
5409fb4e MB |
61 | |
62 | /* | |
63 | * WM8988 Controls | |
64 | */ | |
65 | ||
66 | static const char *bass_boost_txt[] = {"Linear Control", "Adaptive Boost"}; | |
67 | static const struct soc_enum bass_boost = | |
68 | SOC_ENUM_SINGLE(WM8988_BASS, 7, 2, bass_boost_txt); | |
69 | ||
70 | static const char *bass_filter_txt[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" }; | |
71 | static const struct soc_enum bass_filter = | |
72 | SOC_ENUM_SINGLE(WM8988_BASS, 6, 2, bass_filter_txt); | |
73 | ||
74 | static const char *treble_txt[] = {"8kHz", "4kHz"}; | |
75 | static const struct soc_enum treble = | |
76 | SOC_ENUM_SINGLE(WM8988_TREBLE, 6, 2, treble_txt); | |
77 | ||
78 | static const char *stereo_3d_lc_txt[] = {"200Hz", "500Hz"}; | |
79 | static const struct soc_enum stereo_3d_lc = | |
80 | SOC_ENUM_SINGLE(WM8988_3D, 5, 2, stereo_3d_lc_txt); | |
81 | ||
82 | static const char *stereo_3d_uc_txt[] = {"2.2kHz", "1.5kHz"}; | |
83 | static const struct soc_enum stereo_3d_uc = | |
84 | SOC_ENUM_SINGLE(WM8988_3D, 6, 2, stereo_3d_uc_txt); | |
85 | ||
86 | static const char *stereo_3d_func_txt[] = {"Capture", "Playback"}; | |
87 | static const struct soc_enum stereo_3d_func = | |
88 | SOC_ENUM_SINGLE(WM8988_3D, 7, 2, stereo_3d_func_txt); | |
89 | ||
90 | static const char *alc_func_txt[] = {"Off", "Right", "Left", "Stereo"}; | |
91 | static const struct soc_enum alc_func = | |
92 | SOC_ENUM_SINGLE(WM8988_ALC1, 7, 4, alc_func_txt); | |
93 | ||
94 | static const char *ng_type_txt[] = {"Constant PGA Gain", | |
95 | "Mute ADC Output"}; | |
96 | static const struct soc_enum ng_type = | |
97 | SOC_ENUM_SINGLE(WM8988_NGATE, 1, 2, ng_type_txt); | |
98 | ||
99 | static const char *deemph_txt[] = {"None", "32Khz", "44.1Khz", "48Khz"}; | |
100 | static const struct soc_enum deemph = | |
101 | SOC_ENUM_SINGLE(WM8988_ADCDAC, 1, 4, deemph_txt); | |
102 | ||
103 | static const char *adcpol_txt[] = {"Normal", "L Invert", "R Invert", | |
104 | "L + R Invert"}; | |
105 | static const struct soc_enum adcpol = | |
106 | SOC_ENUM_SINGLE(WM8988_ADCDAC, 5, 4, adcpol_txt); | |
107 | ||
108 | static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0); | |
109 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1); | |
110 | static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); | |
111 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); | |
112 | static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); | |
113 | ||
114 | static const struct snd_kcontrol_new wm8988_snd_controls[] = { | |
115 | ||
116 | SOC_ENUM("Bass Boost", bass_boost), | |
117 | SOC_ENUM("Bass Filter", bass_filter), | |
118 | SOC_SINGLE("Bass Volume", WM8988_BASS, 0, 15, 1), | |
119 | ||
120 | SOC_SINGLE("Treble Volume", WM8988_TREBLE, 0, 15, 0), | |
121 | SOC_ENUM("Treble Cut-off", treble), | |
122 | ||
123 | SOC_SINGLE("3D Switch", WM8988_3D, 0, 1, 0), | |
124 | SOC_SINGLE("3D Volume", WM8988_3D, 1, 15, 0), | |
125 | SOC_ENUM("3D Lower Cut-off", stereo_3d_lc), | |
126 | SOC_ENUM("3D Upper Cut-off", stereo_3d_uc), | |
127 | SOC_ENUM("3D Mode", stereo_3d_func), | |
128 | ||
129 | SOC_SINGLE("ALC Capture Target Volume", WM8988_ALC1, 0, 7, 0), | |
130 | SOC_SINGLE("ALC Capture Max Volume", WM8988_ALC1, 4, 7, 0), | |
131 | SOC_ENUM("ALC Capture Function", alc_func), | |
132 | SOC_SINGLE("ALC Capture ZC Switch", WM8988_ALC2, 7, 1, 0), | |
133 | SOC_SINGLE("ALC Capture Hold Time", WM8988_ALC2, 0, 15, 0), | |
134 | SOC_SINGLE("ALC Capture Decay Time", WM8988_ALC3, 4, 15, 0), | |
135 | SOC_SINGLE("ALC Capture Attack Time", WM8988_ALC3, 0, 15, 0), | |
136 | SOC_SINGLE("ALC Capture NG Threshold", WM8988_NGATE, 3, 31, 0), | |
137 | SOC_ENUM("ALC Capture NG Type", ng_type), | |
138 | SOC_SINGLE("ALC Capture NG Switch", WM8988_NGATE, 0, 1, 0), | |
139 | ||
140 | SOC_SINGLE("ZC Timeout Switch", WM8988_ADCTL1, 0, 1, 0), | |
141 | ||
142 | SOC_DOUBLE_R_TLV("Capture Digital Volume", WM8988_LADC, WM8988_RADC, | |
143 | 0, 255, 0, adc_tlv), | |
144 | SOC_DOUBLE_R_TLV("Capture Volume", WM8988_LINVOL, WM8988_RINVOL, | |
145 | 0, 63, 0, pga_tlv), | |
146 | SOC_DOUBLE_R("Capture ZC Switch", WM8988_LINVOL, WM8988_RINVOL, 6, 1, 0), | |
147 | SOC_DOUBLE_R("Capture Switch", WM8988_LINVOL, WM8988_RINVOL, 7, 1, 1), | |
148 | ||
149 | SOC_ENUM("Playback De-emphasis", deemph), | |
150 | ||
151 | SOC_ENUM("Capture Polarity", adcpol), | |
152 | SOC_SINGLE("Playback 6dB Attenuate", WM8988_ADCDAC, 7, 1, 0), | |
153 | SOC_SINGLE("Capture 6dB Attenuate", WM8988_ADCDAC, 8, 1, 0), | |
154 | ||
155 | SOC_DOUBLE_R_TLV("PCM Volume", WM8988_LDAC, WM8988_RDAC, 0, 255, 0, dac_tlv), | |
156 | ||
157 | SOC_SINGLE_TLV("Left Mixer Left Bypass Volume", WM8988_LOUTM1, 4, 7, 1, | |
158 | bypass_tlv), | |
159 | SOC_SINGLE_TLV("Left Mixer Right Bypass Volume", WM8988_LOUTM2, 4, 7, 1, | |
160 | bypass_tlv), | |
161 | SOC_SINGLE_TLV("Right Mixer Left Bypass Volume", WM8988_ROUTM1, 4, 7, 1, | |
162 | bypass_tlv), | |
163 | SOC_SINGLE_TLV("Right Mixer Right Bypass Volume", WM8988_ROUTM2, 4, 7, 1, | |
164 | bypass_tlv), | |
165 | ||
166 | SOC_DOUBLE_R("Output 1 Playback ZC Switch", WM8988_LOUT1V, | |
167 | WM8988_ROUT1V, 7, 1, 0), | |
168 | SOC_DOUBLE_R_TLV("Output 1 Playback Volume", WM8988_LOUT1V, WM8988_ROUT1V, | |
169 | 0, 127, 0, out_tlv), | |
170 | ||
171 | SOC_DOUBLE_R("Output 2 Playback ZC Switch", WM8988_LOUT2V, | |
172 | WM8988_ROUT2V, 7, 1, 0), | |
173 | SOC_DOUBLE_R_TLV("Output 2 Playback Volume", WM8988_LOUT2V, WM8988_ROUT2V, | |
174 | 0, 127, 0, out_tlv), | |
175 | ||
176 | }; | |
177 | ||
178 | /* | |
179 | * DAPM Controls | |
180 | */ | |
181 | ||
182 | static int wm8988_lrc_control(struct snd_soc_dapm_widget *w, | |
183 | struct snd_kcontrol *kcontrol, int event) | |
184 | { | |
185 | struct snd_soc_codec *codec = w->codec; | |
17a52fd6 | 186 | u16 adctl2 = snd_soc_read(codec, WM8988_ADCTL2); |
5409fb4e MB |
187 | |
188 | /* Use the DAC to gate LRC if active, otherwise use ADC */ | |
17a52fd6 | 189 | if (snd_soc_read(codec, WM8988_PWR2) & 0x180) |
5409fb4e MB |
190 | adctl2 &= ~0x4; |
191 | else | |
192 | adctl2 |= 0x4; | |
193 | ||
17a52fd6 | 194 | return snd_soc_write(codec, WM8988_ADCTL2, adctl2); |
5409fb4e MB |
195 | } |
196 | ||
197 | static const char *wm8988_line_texts[] = { | |
198 | "Line 1", "Line 2", "PGA", "Differential"}; | |
199 | ||
200 | static const unsigned int wm8988_line_values[] = { | |
201 | 0, 1, 3, 4}; | |
202 | ||
203 | static const struct soc_enum wm8988_lline_enum = | |
204 | SOC_VALUE_ENUM_SINGLE(WM8988_LOUTM1, 0, 7, | |
205 | ARRAY_SIZE(wm8988_line_texts), | |
206 | wm8988_line_texts, | |
207 | wm8988_line_values); | |
208 | static const struct snd_kcontrol_new wm8988_left_line_controls = | |
209 | SOC_DAPM_VALUE_ENUM("Route", wm8988_lline_enum); | |
210 | ||
211 | static const struct soc_enum wm8988_rline_enum = | |
212 | SOC_VALUE_ENUM_SINGLE(WM8988_ROUTM1, 0, 7, | |
213 | ARRAY_SIZE(wm8988_line_texts), | |
214 | wm8988_line_texts, | |
215 | wm8988_line_values); | |
216 | static const struct snd_kcontrol_new wm8988_right_line_controls = | |
217 | SOC_DAPM_VALUE_ENUM("Route", wm8988_lline_enum); | |
218 | ||
219 | /* Left Mixer */ | |
220 | static const struct snd_kcontrol_new wm8988_left_mixer_controls[] = { | |
221 | SOC_DAPM_SINGLE("Playback Switch", WM8988_LOUTM1, 8, 1, 0), | |
222 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8988_LOUTM1, 7, 1, 0), | |
223 | SOC_DAPM_SINGLE("Right Playback Switch", WM8988_LOUTM2, 8, 1, 0), | |
224 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8988_LOUTM2, 7, 1, 0), | |
225 | }; | |
226 | ||
227 | /* Right Mixer */ | |
228 | static const struct snd_kcontrol_new wm8988_right_mixer_controls[] = { | |
229 | SOC_DAPM_SINGLE("Left Playback Switch", WM8988_ROUTM1, 8, 1, 0), | |
230 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8988_ROUTM1, 7, 1, 0), | |
231 | SOC_DAPM_SINGLE("Playback Switch", WM8988_ROUTM2, 8, 1, 0), | |
232 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8988_ROUTM2, 7, 1, 0), | |
233 | }; | |
234 | ||
235 | static const char *wm8988_pga_sel[] = {"Line 1", "Line 2", "Differential"}; | |
236 | static const unsigned int wm8988_pga_val[] = { 0, 1, 3 }; | |
237 | ||
238 | /* Left PGA Mux */ | |
239 | static const struct soc_enum wm8988_lpga_enum = | |
240 | SOC_VALUE_ENUM_SINGLE(WM8988_LADCIN, 6, 3, | |
241 | ARRAY_SIZE(wm8988_pga_sel), | |
242 | wm8988_pga_sel, | |
243 | wm8988_pga_val); | |
244 | static const struct snd_kcontrol_new wm8988_left_pga_controls = | |
245 | SOC_DAPM_VALUE_ENUM("Route", wm8988_lpga_enum); | |
246 | ||
247 | /* Right PGA Mux */ | |
248 | static const struct soc_enum wm8988_rpga_enum = | |
249 | SOC_VALUE_ENUM_SINGLE(WM8988_RADCIN, 6, 3, | |
250 | ARRAY_SIZE(wm8988_pga_sel), | |
251 | wm8988_pga_sel, | |
252 | wm8988_pga_val); | |
253 | static const struct snd_kcontrol_new wm8988_right_pga_controls = | |
254 | SOC_DAPM_VALUE_ENUM("Route", wm8988_rpga_enum); | |
255 | ||
256 | /* Differential Mux */ | |
257 | static const char *wm8988_diff_sel[] = {"Line 1", "Line 2"}; | |
258 | static const struct soc_enum diffmux = | |
259 | SOC_ENUM_SINGLE(WM8988_ADCIN, 8, 2, wm8988_diff_sel); | |
260 | static const struct snd_kcontrol_new wm8988_diffmux_controls = | |
261 | SOC_DAPM_ENUM("Route", diffmux); | |
262 | ||
263 | /* Mono ADC Mux */ | |
264 | static const char *wm8988_mono_mux[] = {"Stereo", "Mono (Left)", | |
265 | "Mono (Right)", "Digital Mono"}; | |
266 | static const struct soc_enum monomux = | |
267 | SOC_ENUM_SINGLE(WM8988_ADCIN, 6, 4, wm8988_mono_mux); | |
268 | static const struct snd_kcontrol_new wm8988_monomux_controls = | |
269 | SOC_DAPM_ENUM("Route", monomux); | |
270 | ||
271 | static const struct snd_soc_dapm_widget wm8988_dapm_widgets[] = { | |
272 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8988_PWR1, 1, 0), | |
273 | ||
274 | SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, | |
275 | &wm8988_diffmux_controls), | |
276 | SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, | |
277 | &wm8988_monomux_controls), | |
278 | SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, | |
279 | &wm8988_monomux_controls), | |
280 | ||
281 | SND_SOC_DAPM_MUX("Left PGA Mux", WM8988_PWR1, 5, 0, | |
282 | &wm8988_left_pga_controls), | |
283 | SND_SOC_DAPM_MUX("Right PGA Mux", WM8988_PWR1, 4, 0, | |
284 | &wm8988_right_pga_controls), | |
285 | ||
286 | SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, | |
287 | &wm8988_left_line_controls), | |
288 | SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, | |
289 | &wm8988_right_line_controls), | |
290 | ||
291 | SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8988_PWR1, 2, 0), | |
292 | SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8988_PWR1, 3, 0), | |
293 | ||
294 | SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8988_PWR2, 7, 0), | |
295 | SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8988_PWR2, 8, 0), | |
296 | ||
297 | SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, | |
298 | &wm8988_left_mixer_controls[0], | |
299 | ARRAY_SIZE(wm8988_left_mixer_controls)), | |
300 | SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, | |
301 | &wm8988_right_mixer_controls[0], | |
302 | ARRAY_SIZE(wm8988_right_mixer_controls)), | |
303 | ||
304 | SND_SOC_DAPM_PGA("Right Out 2", WM8988_PWR2, 3, 0, NULL, 0), | |
305 | SND_SOC_DAPM_PGA("Left Out 2", WM8988_PWR2, 4, 0, NULL, 0), | |
306 | SND_SOC_DAPM_PGA("Right Out 1", WM8988_PWR2, 5, 0, NULL, 0), | |
307 | SND_SOC_DAPM_PGA("Left Out 1", WM8988_PWR2, 6, 0, NULL, 0), | |
308 | ||
309 | SND_SOC_DAPM_POST("LRC control", wm8988_lrc_control), | |
310 | ||
311 | SND_SOC_DAPM_OUTPUT("LOUT1"), | |
312 | SND_SOC_DAPM_OUTPUT("ROUT1"), | |
313 | SND_SOC_DAPM_OUTPUT("LOUT2"), | |
314 | SND_SOC_DAPM_OUTPUT("ROUT2"), | |
315 | SND_SOC_DAPM_OUTPUT("VREF"), | |
316 | ||
317 | SND_SOC_DAPM_INPUT("LINPUT1"), | |
318 | SND_SOC_DAPM_INPUT("LINPUT2"), | |
319 | SND_SOC_DAPM_INPUT("RINPUT1"), | |
320 | SND_SOC_DAPM_INPUT("RINPUT2"), | |
321 | }; | |
322 | ||
323 | static const struct snd_soc_dapm_route audio_map[] = { | |
324 | ||
325 | { "Left Line Mux", "Line 1", "LINPUT1" }, | |
326 | { "Left Line Mux", "Line 2", "LINPUT2" }, | |
327 | { "Left Line Mux", "PGA", "Left PGA Mux" }, | |
328 | { "Left Line Mux", "Differential", "Differential Mux" }, | |
329 | ||
330 | { "Right Line Mux", "Line 1", "RINPUT1" }, | |
331 | { "Right Line Mux", "Line 2", "RINPUT2" }, | |
332 | { "Right Line Mux", "PGA", "Right PGA Mux" }, | |
333 | { "Right Line Mux", "Differential", "Differential Mux" }, | |
334 | ||
335 | { "Left PGA Mux", "Line 1", "LINPUT1" }, | |
336 | { "Left PGA Mux", "Line 2", "LINPUT2" }, | |
337 | { "Left PGA Mux", "Differential", "Differential Mux" }, | |
338 | ||
339 | { "Right PGA Mux", "Line 1", "RINPUT1" }, | |
340 | { "Right PGA Mux", "Line 2", "RINPUT2" }, | |
341 | { "Right PGA Mux", "Differential", "Differential Mux" }, | |
342 | ||
343 | { "Differential Mux", "Line 1", "LINPUT1" }, | |
344 | { "Differential Mux", "Line 1", "RINPUT1" }, | |
345 | { "Differential Mux", "Line 2", "LINPUT2" }, | |
346 | { "Differential Mux", "Line 2", "RINPUT2" }, | |
347 | ||
348 | { "Left ADC Mux", "Stereo", "Left PGA Mux" }, | |
349 | { "Left ADC Mux", "Mono (Left)", "Left PGA Mux" }, | |
350 | { "Left ADC Mux", "Digital Mono", "Left PGA Mux" }, | |
351 | ||
352 | { "Right ADC Mux", "Stereo", "Right PGA Mux" }, | |
353 | { "Right ADC Mux", "Mono (Right)", "Right PGA Mux" }, | |
354 | { "Right ADC Mux", "Digital Mono", "Right PGA Mux" }, | |
355 | ||
356 | { "Left ADC", NULL, "Left ADC Mux" }, | |
357 | { "Right ADC", NULL, "Right ADC Mux" }, | |
358 | ||
359 | { "Left Line Mux", "Line 1", "LINPUT1" }, | |
360 | { "Left Line Mux", "Line 2", "LINPUT2" }, | |
361 | { "Left Line Mux", "PGA", "Left PGA Mux" }, | |
362 | { "Left Line Mux", "Differential", "Differential Mux" }, | |
363 | ||
364 | { "Right Line Mux", "Line 1", "RINPUT1" }, | |
365 | { "Right Line Mux", "Line 2", "RINPUT2" }, | |
366 | { "Right Line Mux", "PGA", "Right PGA Mux" }, | |
367 | { "Right Line Mux", "Differential", "Differential Mux" }, | |
368 | ||
369 | { "Left Mixer", "Playback Switch", "Left DAC" }, | |
370 | { "Left Mixer", "Left Bypass Switch", "Left Line Mux" }, | |
371 | { "Left Mixer", "Right Playback Switch", "Right DAC" }, | |
372 | { "Left Mixer", "Right Bypass Switch", "Right Line Mux" }, | |
373 | ||
374 | { "Right Mixer", "Left Playback Switch", "Left DAC" }, | |
375 | { "Right Mixer", "Left Bypass Switch", "Left Line Mux" }, | |
376 | { "Right Mixer", "Playback Switch", "Right DAC" }, | |
377 | { "Right Mixer", "Right Bypass Switch", "Right Line Mux" }, | |
378 | ||
379 | { "Left Out 1", NULL, "Left Mixer" }, | |
380 | { "LOUT1", NULL, "Left Out 1" }, | |
381 | { "Right Out 1", NULL, "Right Mixer" }, | |
382 | { "ROUT1", NULL, "Right Out 1" }, | |
383 | ||
384 | { "Left Out 2", NULL, "Left Mixer" }, | |
385 | { "LOUT2", NULL, "Left Out 2" }, | |
386 | { "Right Out 2", NULL, "Right Mixer" }, | |
387 | { "ROUT2", NULL, "Right Out 2" }, | |
388 | }; | |
389 | ||
390 | struct _coeff_div { | |
391 | u32 mclk; | |
392 | u32 rate; | |
393 | u16 fs; | |
394 | u8 sr:5; | |
395 | u8 usb:1; | |
396 | }; | |
397 | ||
398 | /* codec hifi mclk clock divider coefficients */ | |
399 | static const struct _coeff_div coeff_div[] = { | |
400 | /* 8k */ | |
401 | {12288000, 8000, 1536, 0x6, 0x0}, | |
402 | {11289600, 8000, 1408, 0x16, 0x0}, | |
403 | {18432000, 8000, 2304, 0x7, 0x0}, | |
404 | {16934400, 8000, 2112, 0x17, 0x0}, | |
405 | {12000000, 8000, 1500, 0x6, 0x1}, | |
406 | ||
407 | /* 11.025k */ | |
408 | {11289600, 11025, 1024, 0x18, 0x0}, | |
409 | {16934400, 11025, 1536, 0x19, 0x0}, | |
410 | {12000000, 11025, 1088, 0x19, 0x1}, | |
411 | ||
412 | /* 16k */ | |
413 | {12288000, 16000, 768, 0xa, 0x0}, | |
414 | {18432000, 16000, 1152, 0xb, 0x0}, | |
415 | {12000000, 16000, 750, 0xa, 0x1}, | |
416 | ||
417 | /* 22.05k */ | |
418 | {11289600, 22050, 512, 0x1a, 0x0}, | |
419 | {16934400, 22050, 768, 0x1b, 0x0}, | |
420 | {12000000, 22050, 544, 0x1b, 0x1}, | |
421 | ||
422 | /* 32k */ | |
423 | {12288000, 32000, 384, 0xc, 0x0}, | |
424 | {18432000, 32000, 576, 0xd, 0x0}, | |
425 | {12000000, 32000, 375, 0xa, 0x1}, | |
426 | ||
427 | /* 44.1k */ | |
428 | {11289600, 44100, 256, 0x10, 0x0}, | |
429 | {16934400, 44100, 384, 0x11, 0x0}, | |
430 | {12000000, 44100, 272, 0x11, 0x1}, | |
431 | ||
432 | /* 48k */ | |
433 | {12288000, 48000, 256, 0x0, 0x0}, | |
434 | {18432000, 48000, 384, 0x1, 0x0}, | |
435 | {12000000, 48000, 250, 0x0, 0x1}, | |
436 | ||
437 | /* 88.2k */ | |
438 | {11289600, 88200, 128, 0x1e, 0x0}, | |
439 | {16934400, 88200, 192, 0x1f, 0x0}, | |
440 | {12000000, 88200, 136, 0x1f, 0x1}, | |
441 | ||
442 | /* 96k */ | |
443 | {12288000, 96000, 128, 0xe, 0x0}, | |
444 | {18432000, 96000, 192, 0xf, 0x0}, | |
445 | {12000000, 96000, 125, 0xe, 0x1}, | |
446 | }; | |
447 | ||
448 | static inline int get_coeff(int mclk, int rate) | |
449 | { | |
450 | int i; | |
451 | ||
452 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
453 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
454 | return i; | |
455 | } | |
456 | ||
457 | return -EINVAL; | |
458 | } | |
459 | ||
460 | /* The set of rates we can generate from the above for each SYSCLK */ | |
461 | ||
462 | static unsigned int rates_12288[] = { | |
463 | 8000, 12000, 16000, 24000, 24000, 32000, 48000, 96000, | |
464 | }; | |
465 | ||
466 | static struct snd_pcm_hw_constraint_list constraints_12288 = { | |
467 | .count = ARRAY_SIZE(rates_12288), | |
468 | .list = rates_12288, | |
469 | }; | |
470 | ||
471 | static unsigned int rates_112896[] = { | |
472 | 8000, 11025, 22050, 44100, | |
473 | }; | |
474 | ||
475 | static struct snd_pcm_hw_constraint_list constraints_112896 = { | |
476 | .count = ARRAY_SIZE(rates_112896), | |
477 | .list = rates_112896, | |
478 | }; | |
479 | ||
480 | static unsigned int rates_12[] = { | |
481 | 8000, 11025, 12000, 16000, 22050, 2400, 32000, 41100, 48000, | |
482 | 48000, 88235, 96000, | |
483 | }; | |
484 | ||
485 | static struct snd_pcm_hw_constraint_list constraints_12 = { | |
486 | .count = ARRAY_SIZE(rates_12), | |
487 | .list = rates_12, | |
488 | }; | |
489 | ||
490 | /* | |
491 | * Note that this should be called from init rather than from hw_params. | |
492 | */ | |
493 | static int wm8988_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
494 | int clk_id, unsigned int freq, int dir) | |
495 | { | |
496 | struct snd_soc_codec *codec = codec_dai->codec; | |
497 | struct wm8988_priv *wm8988 = codec->private_data; | |
498 | ||
499 | switch (freq) { | |
500 | case 11289600: | |
501 | case 18432000: | |
502 | case 22579200: | |
503 | case 36864000: | |
504 | wm8988->sysclk_constraints = &constraints_112896; | |
505 | wm8988->sysclk = freq; | |
506 | return 0; | |
507 | ||
508 | case 12288000: | |
509 | case 16934400: | |
510 | case 24576000: | |
511 | case 33868800: | |
512 | wm8988->sysclk_constraints = &constraints_12288; | |
513 | wm8988->sysclk = freq; | |
514 | return 0; | |
515 | ||
516 | case 12000000: | |
517 | case 24000000: | |
518 | wm8988->sysclk_constraints = &constraints_12; | |
519 | wm8988->sysclk = freq; | |
520 | return 0; | |
521 | } | |
522 | return -EINVAL; | |
523 | } | |
524 | ||
525 | static int wm8988_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
526 | unsigned int fmt) | |
527 | { | |
528 | struct snd_soc_codec *codec = codec_dai->codec; | |
529 | u16 iface = 0; | |
530 | ||
531 | /* set master/slave audio interface */ | |
532 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
533 | case SND_SOC_DAIFMT_CBM_CFM: | |
534 | iface = 0x0040; | |
535 | break; | |
536 | case SND_SOC_DAIFMT_CBS_CFS: | |
537 | break; | |
538 | default: | |
539 | return -EINVAL; | |
540 | } | |
541 | ||
542 | /* interface format */ | |
543 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
544 | case SND_SOC_DAIFMT_I2S: | |
545 | iface |= 0x0002; | |
546 | break; | |
547 | case SND_SOC_DAIFMT_RIGHT_J: | |
548 | break; | |
549 | case SND_SOC_DAIFMT_LEFT_J: | |
550 | iface |= 0x0001; | |
551 | break; | |
552 | case SND_SOC_DAIFMT_DSP_A: | |
553 | iface |= 0x0003; | |
554 | break; | |
555 | case SND_SOC_DAIFMT_DSP_B: | |
556 | iface |= 0x0013; | |
557 | break; | |
558 | default: | |
559 | return -EINVAL; | |
560 | } | |
561 | ||
562 | /* clock inversion */ | |
563 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
564 | case SND_SOC_DAIFMT_NB_NF: | |
565 | break; | |
566 | case SND_SOC_DAIFMT_IB_IF: | |
567 | iface |= 0x0090; | |
568 | break; | |
569 | case SND_SOC_DAIFMT_IB_NF: | |
570 | iface |= 0x0080; | |
571 | break; | |
572 | case SND_SOC_DAIFMT_NB_IF: | |
573 | iface |= 0x0010; | |
574 | break; | |
575 | default: | |
576 | return -EINVAL; | |
577 | } | |
578 | ||
17a52fd6 | 579 | snd_soc_write(codec, WM8988_IFACE, iface); |
5409fb4e MB |
580 | return 0; |
581 | } | |
582 | ||
583 | static int wm8988_pcm_startup(struct snd_pcm_substream *substream, | |
584 | struct snd_soc_dai *dai) | |
585 | { | |
586 | struct snd_soc_codec *codec = dai->codec; | |
587 | struct wm8988_priv *wm8988 = codec->private_data; | |
588 | ||
589 | /* The set of sample rates that can be supported depends on the | |
590 | * MCLK supplied to the CODEC - enforce this. | |
591 | */ | |
592 | if (!wm8988->sysclk) { | |
593 | dev_err(codec->dev, | |
594 | "No MCLK configured, call set_sysclk() on init\n"); | |
595 | return -EINVAL; | |
596 | } | |
597 | ||
598 | snd_pcm_hw_constraint_list(substream->runtime, 0, | |
599 | SNDRV_PCM_HW_PARAM_RATE, | |
600 | wm8988->sysclk_constraints); | |
601 | ||
602 | return 0; | |
603 | } | |
604 | ||
605 | static int wm8988_pcm_hw_params(struct snd_pcm_substream *substream, | |
606 | struct snd_pcm_hw_params *params, | |
607 | struct snd_soc_dai *dai) | |
608 | { | |
609 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
610 | struct snd_soc_device *socdev = rtd->socdev; | |
611 | struct snd_soc_codec *codec = socdev->card->codec; | |
612 | struct wm8988_priv *wm8988 = codec->private_data; | |
17a52fd6 MB |
613 | u16 iface = snd_soc_read(codec, WM8988_IFACE) & 0x1f3; |
614 | u16 srate = snd_soc_read(codec, WM8988_SRATE) & 0x180; | |
5409fb4e MB |
615 | int coeff; |
616 | ||
617 | coeff = get_coeff(wm8988->sysclk, params_rate(params)); | |
618 | if (coeff < 0) { | |
619 | coeff = get_coeff(wm8988->sysclk / 2, params_rate(params)); | |
620 | srate |= 0x40; | |
621 | } | |
622 | if (coeff < 0) { | |
623 | dev_err(codec->dev, | |
624 | "Unable to configure sample rate %dHz with %dHz MCLK\n", | |
625 | params_rate(params), wm8988->sysclk); | |
626 | return coeff; | |
627 | } | |
628 | ||
629 | /* bit size */ | |
630 | switch (params_format(params)) { | |
631 | case SNDRV_PCM_FORMAT_S16_LE: | |
632 | break; | |
633 | case SNDRV_PCM_FORMAT_S20_3LE: | |
634 | iface |= 0x0004; | |
635 | break; | |
636 | case SNDRV_PCM_FORMAT_S24_LE: | |
637 | iface |= 0x0008; | |
638 | break; | |
639 | case SNDRV_PCM_FORMAT_S32_LE: | |
640 | iface |= 0x000c; | |
641 | break; | |
642 | } | |
643 | ||
644 | /* set iface & srate */ | |
17a52fd6 | 645 | snd_soc_write(codec, WM8988_IFACE, iface); |
5409fb4e | 646 | if (coeff >= 0) |
17a52fd6 | 647 | snd_soc_write(codec, WM8988_SRATE, srate | |
5409fb4e MB |
648 | (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); |
649 | ||
650 | return 0; | |
651 | } | |
652 | ||
653 | static int wm8988_mute(struct snd_soc_dai *dai, int mute) | |
654 | { | |
655 | struct snd_soc_codec *codec = dai->codec; | |
17a52fd6 | 656 | u16 mute_reg = snd_soc_read(codec, WM8988_ADCDAC) & 0xfff7; |
5409fb4e MB |
657 | |
658 | if (mute) | |
17a52fd6 | 659 | snd_soc_write(codec, WM8988_ADCDAC, mute_reg | 0x8); |
5409fb4e | 660 | else |
17a52fd6 | 661 | snd_soc_write(codec, WM8988_ADCDAC, mute_reg); |
5409fb4e MB |
662 | return 0; |
663 | } | |
664 | ||
665 | static int wm8988_set_bias_level(struct snd_soc_codec *codec, | |
666 | enum snd_soc_bias_level level) | |
667 | { | |
17a52fd6 | 668 | u16 pwr_reg = snd_soc_read(codec, WM8988_PWR1) & ~0x1c1; |
5409fb4e MB |
669 | |
670 | switch (level) { | |
671 | case SND_SOC_BIAS_ON: | |
672 | break; | |
673 | ||
674 | case SND_SOC_BIAS_PREPARE: | |
675 | /* VREF, VMID=2x50k, digital enabled */ | |
17a52fd6 | 676 | snd_soc_write(codec, WM8988_PWR1, pwr_reg | 0x00c0); |
5409fb4e MB |
677 | break; |
678 | ||
679 | case SND_SOC_BIAS_STANDBY: | |
680 | if (codec->bias_level == SND_SOC_BIAS_OFF) { | |
681 | /* VREF, VMID=2x5k */ | |
17a52fd6 | 682 | snd_soc_write(codec, WM8988_PWR1, pwr_reg | 0x1c1); |
5409fb4e MB |
683 | |
684 | /* Charge caps */ | |
685 | msleep(100); | |
686 | } | |
687 | ||
688 | /* VREF, VMID=2*500k, digital stopped */ | |
17a52fd6 | 689 | snd_soc_write(codec, WM8988_PWR1, pwr_reg | 0x0141); |
5409fb4e MB |
690 | break; |
691 | ||
692 | case SND_SOC_BIAS_OFF: | |
17a52fd6 | 693 | snd_soc_write(codec, WM8988_PWR1, 0x0000); |
5409fb4e MB |
694 | break; |
695 | } | |
696 | codec->bias_level = level; | |
697 | return 0; | |
698 | } | |
699 | ||
700 | #define WM8988_RATES SNDRV_PCM_RATE_8000_96000 | |
701 | ||
702 | #define WM8988_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
703 | SNDRV_PCM_FMTBIT_S24_LE) | |
704 | ||
705 | static struct snd_soc_dai_ops wm8988_ops = { | |
706 | .startup = wm8988_pcm_startup, | |
707 | .hw_params = wm8988_pcm_hw_params, | |
708 | .set_fmt = wm8988_set_dai_fmt, | |
709 | .set_sysclk = wm8988_set_dai_sysclk, | |
710 | .digital_mute = wm8988_mute, | |
711 | }; | |
712 | ||
713 | struct snd_soc_dai wm8988_dai = { | |
714 | .name = "WM8988", | |
715 | .playback = { | |
716 | .stream_name = "Playback", | |
717 | .channels_min = 1, | |
718 | .channels_max = 2, | |
719 | .rates = WM8988_RATES, | |
720 | .formats = WM8988_FORMATS, | |
721 | }, | |
722 | .capture = { | |
723 | .stream_name = "Capture", | |
724 | .channels_min = 1, | |
725 | .channels_max = 2, | |
726 | .rates = WM8988_RATES, | |
727 | .formats = WM8988_FORMATS, | |
728 | }, | |
729 | .ops = &wm8988_ops, | |
730 | .symmetric_rates = 1, | |
731 | }; | |
732 | EXPORT_SYMBOL_GPL(wm8988_dai); | |
733 | ||
734 | static int wm8988_suspend(struct platform_device *pdev, pm_message_t state) | |
735 | { | |
736 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
737 | struct snd_soc_codec *codec = socdev->card->codec; | |
738 | ||
739 | wm8988_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
740 | return 0; | |
741 | } | |
742 | ||
743 | static int wm8988_resume(struct platform_device *pdev) | |
744 | { | |
745 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
746 | struct snd_soc_codec *codec = socdev->card->codec; | |
747 | int i; | |
748 | u8 data[2]; | |
749 | u16 *cache = codec->reg_cache; | |
750 | ||
751 | /* Sync reg_cache with the hardware */ | |
752 | for (i = 0; i < WM8988_NUM_REG; i++) { | |
753 | if (i == WM8988_RESET) | |
754 | continue; | |
755 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); | |
756 | data[1] = cache[i] & 0x00ff; | |
757 | codec->hw_write(codec->control_data, data, 2); | |
758 | } | |
759 | ||
760 | wm8988_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
761 | ||
762 | return 0; | |
763 | } | |
764 | ||
765 | static struct snd_soc_codec *wm8988_codec; | |
766 | ||
767 | static int wm8988_probe(struct platform_device *pdev) | |
768 | { | |
769 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
770 | struct snd_soc_codec *codec; | |
771 | int ret = 0; | |
772 | ||
773 | if (wm8988_codec == NULL) { | |
774 | dev_err(&pdev->dev, "Codec device not registered\n"); | |
775 | return -ENODEV; | |
776 | } | |
777 | ||
778 | socdev->card->codec = wm8988_codec; | |
779 | codec = wm8988_codec; | |
780 | ||
781 | /* register pcms */ | |
782 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
783 | if (ret < 0) { | |
784 | dev_err(codec->dev, "failed to create pcms: %d\n", ret); | |
785 | goto pcm_err; | |
786 | } | |
787 | ||
788 | snd_soc_add_controls(codec, wm8988_snd_controls, | |
789 | ARRAY_SIZE(wm8988_snd_controls)); | |
790 | snd_soc_dapm_new_controls(codec, wm8988_dapm_widgets, | |
791 | ARRAY_SIZE(wm8988_dapm_widgets)); | |
792 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
793 | snd_soc_dapm_new_widgets(codec); | |
794 | ||
795 | ret = snd_soc_init_card(socdev); | |
796 | if (ret < 0) { | |
797 | dev_err(codec->dev, "failed to register card: %d\n", ret); | |
798 | goto card_err; | |
799 | } | |
800 | ||
801 | return ret; | |
802 | ||
803 | card_err: | |
804 | snd_soc_free_pcms(socdev); | |
805 | snd_soc_dapm_free(socdev); | |
806 | pcm_err: | |
807 | return ret; | |
808 | } | |
809 | ||
810 | static int wm8988_remove(struct platform_device *pdev) | |
811 | { | |
812 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
813 | ||
814 | snd_soc_free_pcms(socdev); | |
815 | snd_soc_dapm_free(socdev); | |
816 | ||
817 | return 0; | |
818 | } | |
819 | ||
820 | struct snd_soc_codec_device soc_codec_dev_wm8988 = { | |
821 | .probe = wm8988_probe, | |
822 | .remove = wm8988_remove, | |
823 | .suspend = wm8988_suspend, | |
824 | .resume = wm8988_resume, | |
825 | }; | |
826 | EXPORT_SYMBOL_GPL(soc_codec_dev_wm8988); | |
827 | ||
7084a42b MB |
828 | static int wm8988_register(struct wm8988_priv *wm8988, |
829 | enum snd_soc_control_type control) | |
5409fb4e MB |
830 | { |
831 | struct snd_soc_codec *codec = &wm8988->codec; | |
832 | int ret; | |
833 | u16 reg; | |
834 | ||
835 | if (wm8988_codec) { | |
836 | dev_err(codec->dev, "Another WM8988 is registered\n"); | |
837 | ret = -EINVAL; | |
838 | goto err; | |
839 | } | |
840 | ||
841 | mutex_init(&codec->mutex); | |
842 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
843 | INIT_LIST_HEAD(&codec->dapm_paths); | |
844 | ||
845 | codec->private_data = wm8988; | |
846 | codec->name = "WM8988"; | |
847 | codec->owner = THIS_MODULE; | |
5409fb4e MB |
848 | codec->dai = &wm8988_dai; |
849 | codec->num_dai = 1; | |
850 | codec->reg_cache_size = ARRAY_SIZE(wm8988->reg_cache); | |
851 | codec->reg_cache = &wm8988->reg_cache; | |
852 | codec->bias_level = SND_SOC_BIAS_OFF; | |
853 | codec->set_bias_level = wm8988_set_bias_level; | |
854 | ||
855 | memcpy(codec->reg_cache, wm8988_reg, | |
856 | sizeof(wm8988_reg)); | |
857 | ||
7084a42b | 858 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); |
17a52fd6 MB |
859 | if (ret < 0) { |
860 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
861 | goto err; | |
862 | } | |
863 | ||
5409fb4e MB |
864 | ret = wm8988_reset(codec); |
865 | if (ret < 0) { | |
866 | dev_err(codec->dev, "Failed to issue reset\n"); | |
5420f307 | 867 | goto err; |
5409fb4e MB |
868 | } |
869 | ||
870 | /* set the update bits (we always update left then right) */ | |
17a52fd6 MB |
871 | reg = snd_soc_read(codec, WM8988_RADC); |
872 | snd_soc_write(codec, WM8988_RADC, reg | 0x100); | |
873 | reg = snd_soc_read(codec, WM8988_RDAC); | |
874 | snd_soc_write(codec, WM8988_RDAC, reg | 0x0100); | |
875 | reg = snd_soc_read(codec, WM8988_ROUT1V); | |
876 | snd_soc_write(codec, WM8988_ROUT1V, reg | 0x0100); | |
877 | reg = snd_soc_read(codec, WM8988_ROUT2V); | |
878 | snd_soc_write(codec, WM8988_ROUT2V, reg | 0x0100); | |
879 | reg = snd_soc_read(codec, WM8988_RINVOL); | |
880 | snd_soc_write(codec, WM8988_RINVOL, reg | 0x0100); | |
5409fb4e MB |
881 | |
882 | wm8988_set_bias_level(&wm8988->codec, SND_SOC_BIAS_STANDBY); | |
883 | ||
884 | wm8988_dai.dev = codec->dev; | |
885 | ||
886 | wm8988_codec = codec; | |
887 | ||
888 | ret = snd_soc_register_codec(codec); | |
889 | if (ret != 0) { | |
890 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); | |
5420f307 | 891 | goto err; |
5409fb4e MB |
892 | } |
893 | ||
894 | ret = snd_soc_register_dai(&wm8988_dai); | |
895 | if (ret != 0) { | |
896 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
897 | snd_soc_unregister_codec(codec); | |
5420f307 | 898 | goto err_codec; |
5409fb4e MB |
899 | } |
900 | ||
901 | return 0; | |
902 | ||
5420f307 MB |
903 | err_codec: |
904 | snd_soc_unregister_codec(codec); | |
5409fb4e MB |
905 | err: |
906 | kfree(wm8988); | |
907 | return ret; | |
908 | } | |
909 | ||
910 | static void wm8988_unregister(struct wm8988_priv *wm8988) | |
911 | { | |
912 | wm8988_set_bias_level(&wm8988->codec, SND_SOC_BIAS_OFF); | |
913 | snd_soc_unregister_dai(&wm8988_dai); | |
914 | snd_soc_unregister_codec(&wm8988->codec); | |
915 | kfree(wm8988); | |
916 | wm8988_codec = NULL; | |
917 | } | |
918 | ||
919 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
920 | static int wm8988_i2c_probe(struct i2c_client *i2c, | |
921 | const struct i2c_device_id *id) | |
922 | { | |
923 | struct wm8988_priv *wm8988; | |
924 | struct snd_soc_codec *codec; | |
925 | ||
926 | wm8988 = kzalloc(sizeof(struct wm8988_priv), GFP_KERNEL); | |
927 | if (wm8988 == NULL) | |
928 | return -ENOMEM; | |
929 | ||
930 | codec = &wm8988->codec; | |
5409fb4e MB |
931 | |
932 | i2c_set_clientdata(i2c, wm8988); | |
933 | codec->control_data = i2c; | |
934 | ||
935 | codec->dev = &i2c->dev; | |
936 | ||
7084a42b | 937 | return wm8988_register(wm8988, SND_SOC_I2C); |
5409fb4e MB |
938 | } |
939 | ||
940 | static int wm8988_i2c_remove(struct i2c_client *client) | |
941 | { | |
942 | struct wm8988_priv *wm8988 = i2c_get_clientdata(client); | |
943 | wm8988_unregister(wm8988); | |
944 | return 0; | |
945 | } | |
946 | ||
b3b50b3f MB |
947 | #ifdef CONFIG_PM |
948 | static int wm8988_i2c_suspend(struct i2c_client *client, pm_message_t msg) | |
949 | { | |
950 | return snd_soc_suspend_device(&client->dev); | |
951 | } | |
952 | ||
953 | static int wm8988_i2c_resume(struct i2c_client *client) | |
954 | { | |
955 | return snd_soc_resume_device(&client->dev); | |
956 | } | |
957 | #else | |
958 | #define wm8988_i2c_suspend NULL | |
959 | #define wm8988_i2c_resume NULL | |
960 | #endif | |
961 | ||
5409fb4e MB |
962 | static const struct i2c_device_id wm8988_i2c_id[] = { |
963 | { "wm8988", 0 }, | |
964 | { } | |
965 | }; | |
966 | MODULE_DEVICE_TABLE(i2c, wm8988_i2c_id); | |
967 | ||
968 | static struct i2c_driver wm8988_i2c_driver = { | |
969 | .driver = { | |
970 | .name = "WM8988", | |
971 | .owner = THIS_MODULE, | |
972 | }, | |
973 | .probe = wm8988_i2c_probe, | |
974 | .remove = wm8988_i2c_remove, | |
b3b50b3f MB |
975 | .suspend = wm8988_i2c_suspend, |
976 | .resume = wm8988_i2c_resume, | |
5409fb4e MB |
977 | .id_table = wm8988_i2c_id, |
978 | }; | |
979 | #endif | |
980 | ||
981 | #if defined(CONFIG_SPI_MASTER) | |
5409fb4e MB |
982 | static int __devinit wm8988_spi_probe(struct spi_device *spi) |
983 | { | |
984 | struct wm8988_priv *wm8988; | |
985 | struct snd_soc_codec *codec; | |
986 | ||
987 | wm8988 = kzalloc(sizeof(struct wm8988_priv), GFP_KERNEL); | |
988 | if (wm8988 == NULL) | |
989 | return -ENOMEM; | |
990 | ||
991 | codec = &wm8988->codec; | |
5409fb4e MB |
992 | codec->control_data = spi; |
993 | codec->dev = &spi->dev; | |
994 | ||
995 | spi->dev.driver_data = wm8988; | |
996 | ||
7084a42b | 997 | return wm8988_register(wm8988, SND_SOC_SPI); |
5409fb4e MB |
998 | } |
999 | ||
1000 | static int __devexit wm8988_spi_remove(struct spi_device *spi) | |
1001 | { | |
1002 | struct wm8988_priv *wm8988 = spi->dev.driver_data; | |
1003 | ||
1004 | wm8988_unregister(wm8988); | |
1005 | ||
1006 | return 0; | |
1007 | } | |
1008 | ||
b3b50b3f MB |
1009 | #ifdef CONFIG_PM |
1010 | static int wm8988_spi_suspend(struct spi_device *spi, pm_message_t msg) | |
1011 | { | |
1012 | return snd_soc_suspend_device(&spi->dev); | |
1013 | } | |
1014 | ||
1015 | static int wm8988_spi_resume(struct spi_device *spi) | |
1016 | { | |
1017 | return snd_soc_resume_device(&spi->dev); | |
1018 | } | |
1019 | #else | |
1020 | #define wm8988_spi_suspend NULL | |
1021 | #define wm8988_spi_resume NULL | |
1022 | #endif | |
1023 | ||
5409fb4e MB |
1024 | static struct spi_driver wm8988_spi_driver = { |
1025 | .driver = { | |
1026 | .name = "wm8988", | |
1027 | .bus = &spi_bus_type, | |
1028 | .owner = THIS_MODULE, | |
1029 | }, | |
1030 | .probe = wm8988_spi_probe, | |
1031 | .remove = __devexit_p(wm8988_spi_remove), | |
b3b50b3f MB |
1032 | .suspend = wm8988_spi_suspend, |
1033 | .resume = wm8988_spi_resume, | |
5409fb4e MB |
1034 | }; |
1035 | #endif | |
1036 | ||
1037 | static int __init wm8988_modinit(void) | |
1038 | { | |
1039 | int ret; | |
1040 | ||
1041 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
1042 | ret = i2c_add_driver(&wm8988_i2c_driver); | |
1043 | if (ret != 0) | |
1044 | pr_err("WM8988: Unable to register I2C driver: %d\n", ret); | |
1045 | #endif | |
1046 | #if defined(CONFIG_SPI_MASTER) | |
1047 | ret = spi_register_driver(&wm8988_spi_driver); | |
1048 | if (ret != 0) | |
1049 | pr_err("WM8988: Unable to register SPI driver: %d\n", ret); | |
1050 | #endif | |
1051 | return ret; | |
1052 | } | |
1053 | module_init(wm8988_modinit); | |
1054 | ||
1055 | static void __exit wm8988_exit(void) | |
1056 | { | |
1057 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
1058 | i2c_del_driver(&wm8988_i2c_driver); | |
1059 | #endif | |
1060 | #if defined(CONFIG_SPI_MASTER) | |
1061 | spi_unregister_driver(&wm8988_spi_driver); | |
1062 | #endif | |
1063 | } | |
1064 | module_exit(wm8988_exit); | |
1065 | ||
1066 | ||
1067 | MODULE_DESCRIPTION("ASoC WM8988 driver"); | |
1068 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
1069 | MODULE_LICENSE("GPL"); |