Commit | Line | Data |
---|---|---|
5409fb4e MB |
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 | ||
60 | /* | |
61 | * read wm8988 register cache | |
62 | */ | |
63 | static inline unsigned int wm8988_read_reg_cache(struct snd_soc_codec *codec, | |
64 | unsigned int reg) | |
65 | { | |
66 | u16 *cache = codec->reg_cache; | |
67 | if (reg > WM8988_NUM_REG) | |
68 | return -1; | |
69 | return cache[reg]; | |
70 | } | |
71 | ||
72 | /* | |
73 | * write wm8988 register cache | |
74 | */ | |
75 | static inline void wm8988_write_reg_cache(struct snd_soc_codec *codec, | |
76 | unsigned int reg, unsigned int value) | |
77 | { | |
78 | u16 *cache = codec->reg_cache; | |
79 | if (reg > WM8988_NUM_REG) | |
80 | return; | |
81 | cache[reg] = value; | |
82 | } | |
83 | ||
84 | static int wm8988_write(struct snd_soc_codec *codec, unsigned int reg, | |
85 | unsigned int value) | |
86 | { | |
87 | u8 data[2]; | |
88 | ||
89 | /* data is | |
90 | * D15..D9 WM8753 register offset | |
91 | * D8...D0 register data | |
92 | */ | |
93 | data[0] = (reg << 1) | ((value >> 8) & 0x0001); | |
94 | data[1] = value & 0x00ff; | |
95 | ||
96 | wm8988_write_reg_cache(codec, reg, value); | |
97 | if (codec->hw_write(codec->control_data, data, 2) == 2) | |
98 | return 0; | |
99 | else | |
100 | return -EIO; | |
101 | } | |
102 | ||
103 | #define wm8988_reset(c) wm8988_write(c, WM8988_RESET, 0) | |
104 | ||
105 | /* | |
106 | * WM8988 Controls | |
107 | */ | |
108 | ||
109 | static const char *bass_boost_txt[] = {"Linear Control", "Adaptive Boost"}; | |
110 | static const struct soc_enum bass_boost = | |
111 | SOC_ENUM_SINGLE(WM8988_BASS, 7, 2, bass_boost_txt); | |
112 | ||
113 | static const char *bass_filter_txt[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" }; | |
114 | static const struct soc_enum bass_filter = | |
115 | SOC_ENUM_SINGLE(WM8988_BASS, 6, 2, bass_filter_txt); | |
116 | ||
117 | static const char *treble_txt[] = {"8kHz", "4kHz"}; | |
118 | static const struct soc_enum treble = | |
119 | SOC_ENUM_SINGLE(WM8988_TREBLE, 6, 2, treble_txt); | |
120 | ||
121 | static const char *stereo_3d_lc_txt[] = {"200Hz", "500Hz"}; | |
122 | static const struct soc_enum stereo_3d_lc = | |
123 | SOC_ENUM_SINGLE(WM8988_3D, 5, 2, stereo_3d_lc_txt); | |
124 | ||
125 | static const char *stereo_3d_uc_txt[] = {"2.2kHz", "1.5kHz"}; | |
126 | static const struct soc_enum stereo_3d_uc = | |
127 | SOC_ENUM_SINGLE(WM8988_3D, 6, 2, stereo_3d_uc_txt); | |
128 | ||
129 | static const char *stereo_3d_func_txt[] = {"Capture", "Playback"}; | |
130 | static const struct soc_enum stereo_3d_func = | |
131 | SOC_ENUM_SINGLE(WM8988_3D, 7, 2, stereo_3d_func_txt); | |
132 | ||
133 | static const char *alc_func_txt[] = {"Off", "Right", "Left", "Stereo"}; | |
134 | static const struct soc_enum alc_func = | |
135 | SOC_ENUM_SINGLE(WM8988_ALC1, 7, 4, alc_func_txt); | |
136 | ||
137 | static const char *ng_type_txt[] = {"Constant PGA Gain", | |
138 | "Mute ADC Output"}; | |
139 | static const struct soc_enum ng_type = | |
140 | SOC_ENUM_SINGLE(WM8988_NGATE, 1, 2, ng_type_txt); | |
141 | ||
142 | static const char *deemph_txt[] = {"None", "32Khz", "44.1Khz", "48Khz"}; | |
143 | static const struct soc_enum deemph = | |
144 | SOC_ENUM_SINGLE(WM8988_ADCDAC, 1, 4, deemph_txt); | |
145 | ||
146 | static const char *adcpol_txt[] = {"Normal", "L Invert", "R Invert", | |
147 | "L + R Invert"}; | |
148 | static const struct soc_enum adcpol = | |
149 | SOC_ENUM_SINGLE(WM8988_ADCDAC, 5, 4, adcpol_txt); | |
150 | ||
151 | static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0); | |
152 | static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1); | |
153 | static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1); | |
154 | static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); | |
155 | static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0); | |
156 | ||
157 | static const struct snd_kcontrol_new wm8988_snd_controls[] = { | |
158 | ||
159 | SOC_ENUM("Bass Boost", bass_boost), | |
160 | SOC_ENUM("Bass Filter", bass_filter), | |
161 | SOC_SINGLE("Bass Volume", WM8988_BASS, 0, 15, 1), | |
162 | ||
163 | SOC_SINGLE("Treble Volume", WM8988_TREBLE, 0, 15, 0), | |
164 | SOC_ENUM("Treble Cut-off", treble), | |
165 | ||
166 | SOC_SINGLE("3D Switch", WM8988_3D, 0, 1, 0), | |
167 | SOC_SINGLE("3D Volume", WM8988_3D, 1, 15, 0), | |
168 | SOC_ENUM("3D Lower Cut-off", stereo_3d_lc), | |
169 | SOC_ENUM("3D Upper Cut-off", stereo_3d_uc), | |
170 | SOC_ENUM("3D Mode", stereo_3d_func), | |
171 | ||
172 | SOC_SINGLE("ALC Capture Target Volume", WM8988_ALC1, 0, 7, 0), | |
173 | SOC_SINGLE("ALC Capture Max Volume", WM8988_ALC1, 4, 7, 0), | |
174 | SOC_ENUM("ALC Capture Function", alc_func), | |
175 | SOC_SINGLE("ALC Capture ZC Switch", WM8988_ALC2, 7, 1, 0), | |
176 | SOC_SINGLE("ALC Capture Hold Time", WM8988_ALC2, 0, 15, 0), | |
177 | SOC_SINGLE("ALC Capture Decay Time", WM8988_ALC3, 4, 15, 0), | |
178 | SOC_SINGLE("ALC Capture Attack Time", WM8988_ALC3, 0, 15, 0), | |
179 | SOC_SINGLE("ALC Capture NG Threshold", WM8988_NGATE, 3, 31, 0), | |
180 | SOC_ENUM("ALC Capture NG Type", ng_type), | |
181 | SOC_SINGLE("ALC Capture NG Switch", WM8988_NGATE, 0, 1, 0), | |
182 | ||
183 | SOC_SINGLE("ZC Timeout Switch", WM8988_ADCTL1, 0, 1, 0), | |
184 | ||
185 | SOC_DOUBLE_R_TLV("Capture Digital Volume", WM8988_LADC, WM8988_RADC, | |
186 | 0, 255, 0, adc_tlv), | |
187 | SOC_DOUBLE_R_TLV("Capture Volume", WM8988_LINVOL, WM8988_RINVOL, | |
188 | 0, 63, 0, pga_tlv), | |
189 | SOC_DOUBLE_R("Capture ZC Switch", WM8988_LINVOL, WM8988_RINVOL, 6, 1, 0), | |
190 | SOC_DOUBLE_R("Capture Switch", WM8988_LINVOL, WM8988_RINVOL, 7, 1, 1), | |
191 | ||
192 | SOC_ENUM("Playback De-emphasis", deemph), | |
193 | ||
194 | SOC_ENUM("Capture Polarity", adcpol), | |
195 | SOC_SINGLE("Playback 6dB Attenuate", WM8988_ADCDAC, 7, 1, 0), | |
196 | SOC_SINGLE("Capture 6dB Attenuate", WM8988_ADCDAC, 8, 1, 0), | |
197 | ||
198 | SOC_DOUBLE_R_TLV("PCM Volume", WM8988_LDAC, WM8988_RDAC, 0, 255, 0, dac_tlv), | |
199 | ||
200 | SOC_SINGLE_TLV("Left Mixer Left Bypass Volume", WM8988_LOUTM1, 4, 7, 1, | |
201 | bypass_tlv), | |
202 | SOC_SINGLE_TLV("Left Mixer Right Bypass Volume", WM8988_LOUTM2, 4, 7, 1, | |
203 | bypass_tlv), | |
204 | SOC_SINGLE_TLV("Right Mixer Left Bypass Volume", WM8988_ROUTM1, 4, 7, 1, | |
205 | bypass_tlv), | |
206 | SOC_SINGLE_TLV("Right Mixer Right Bypass Volume", WM8988_ROUTM2, 4, 7, 1, | |
207 | bypass_tlv), | |
208 | ||
209 | SOC_DOUBLE_R("Output 1 Playback ZC Switch", WM8988_LOUT1V, | |
210 | WM8988_ROUT1V, 7, 1, 0), | |
211 | SOC_DOUBLE_R_TLV("Output 1 Playback Volume", WM8988_LOUT1V, WM8988_ROUT1V, | |
212 | 0, 127, 0, out_tlv), | |
213 | ||
214 | SOC_DOUBLE_R("Output 2 Playback ZC Switch", WM8988_LOUT2V, | |
215 | WM8988_ROUT2V, 7, 1, 0), | |
216 | SOC_DOUBLE_R_TLV("Output 2 Playback Volume", WM8988_LOUT2V, WM8988_ROUT2V, | |
217 | 0, 127, 0, out_tlv), | |
218 | ||
219 | }; | |
220 | ||
221 | /* | |
222 | * DAPM Controls | |
223 | */ | |
224 | ||
225 | static int wm8988_lrc_control(struct snd_soc_dapm_widget *w, | |
226 | struct snd_kcontrol *kcontrol, int event) | |
227 | { | |
228 | struct snd_soc_codec *codec = w->codec; | |
229 | u16 adctl2 = wm8988_read_reg_cache(codec, WM8988_ADCTL2); | |
230 | ||
231 | /* Use the DAC to gate LRC if active, otherwise use ADC */ | |
232 | if (wm8988_read_reg_cache(codec, WM8988_PWR2) & 0x180) | |
233 | adctl2 &= ~0x4; | |
234 | else | |
235 | adctl2 |= 0x4; | |
236 | ||
237 | return wm8988_write(codec, WM8988_ADCTL2, adctl2); | |
238 | } | |
239 | ||
240 | static const char *wm8988_line_texts[] = { | |
241 | "Line 1", "Line 2", "PGA", "Differential"}; | |
242 | ||
243 | static const unsigned int wm8988_line_values[] = { | |
244 | 0, 1, 3, 4}; | |
245 | ||
246 | static const struct soc_enum wm8988_lline_enum = | |
247 | SOC_VALUE_ENUM_SINGLE(WM8988_LOUTM1, 0, 7, | |
248 | ARRAY_SIZE(wm8988_line_texts), | |
249 | wm8988_line_texts, | |
250 | wm8988_line_values); | |
251 | static const struct snd_kcontrol_new wm8988_left_line_controls = | |
252 | SOC_DAPM_VALUE_ENUM("Route", wm8988_lline_enum); | |
253 | ||
254 | static const struct soc_enum wm8988_rline_enum = | |
255 | SOC_VALUE_ENUM_SINGLE(WM8988_ROUTM1, 0, 7, | |
256 | ARRAY_SIZE(wm8988_line_texts), | |
257 | wm8988_line_texts, | |
258 | wm8988_line_values); | |
259 | static const struct snd_kcontrol_new wm8988_right_line_controls = | |
260 | SOC_DAPM_VALUE_ENUM("Route", wm8988_lline_enum); | |
261 | ||
262 | /* Left Mixer */ | |
263 | static const struct snd_kcontrol_new wm8988_left_mixer_controls[] = { | |
264 | SOC_DAPM_SINGLE("Playback Switch", WM8988_LOUTM1, 8, 1, 0), | |
265 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8988_LOUTM1, 7, 1, 0), | |
266 | SOC_DAPM_SINGLE("Right Playback Switch", WM8988_LOUTM2, 8, 1, 0), | |
267 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8988_LOUTM2, 7, 1, 0), | |
268 | }; | |
269 | ||
270 | /* Right Mixer */ | |
271 | static const struct snd_kcontrol_new wm8988_right_mixer_controls[] = { | |
272 | SOC_DAPM_SINGLE("Left Playback Switch", WM8988_ROUTM1, 8, 1, 0), | |
273 | SOC_DAPM_SINGLE("Left Bypass Switch", WM8988_ROUTM1, 7, 1, 0), | |
274 | SOC_DAPM_SINGLE("Playback Switch", WM8988_ROUTM2, 8, 1, 0), | |
275 | SOC_DAPM_SINGLE("Right Bypass Switch", WM8988_ROUTM2, 7, 1, 0), | |
276 | }; | |
277 | ||
278 | static const char *wm8988_pga_sel[] = {"Line 1", "Line 2", "Differential"}; | |
279 | static const unsigned int wm8988_pga_val[] = { 0, 1, 3 }; | |
280 | ||
281 | /* Left PGA Mux */ | |
282 | static const struct soc_enum wm8988_lpga_enum = | |
283 | SOC_VALUE_ENUM_SINGLE(WM8988_LADCIN, 6, 3, | |
284 | ARRAY_SIZE(wm8988_pga_sel), | |
285 | wm8988_pga_sel, | |
286 | wm8988_pga_val); | |
287 | static const struct snd_kcontrol_new wm8988_left_pga_controls = | |
288 | SOC_DAPM_VALUE_ENUM("Route", wm8988_lpga_enum); | |
289 | ||
290 | /* Right PGA Mux */ | |
291 | static const struct soc_enum wm8988_rpga_enum = | |
292 | SOC_VALUE_ENUM_SINGLE(WM8988_RADCIN, 6, 3, | |
293 | ARRAY_SIZE(wm8988_pga_sel), | |
294 | wm8988_pga_sel, | |
295 | wm8988_pga_val); | |
296 | static const struct snd_kcontrol_new wm8988_right_pga_controls = | |
297 | SOC_DAPM_VALUE_ENUM("Route", wm8988_rpga_enum); | |
298 | ||
299 | /* Differential Mux */ | |
300 | static const char *wm8988_diff_sel[] = {"Line 1", "Line 2"}; | |
301 | static const struct soc_enum diffmux = | |
302 | SOC_ENUM_SINGLE(WM8988_ADCIN, 8, 2, wm8988_diff_sel); | |
303 | static const struct snd_kcontrol_new wm8988_diffmux_controls = | |
304 | SOC_DAPM_ENUM("Route", diffmux); | |
305 | ||
306 | /* Mono ADC Mux */ | |
307 | static const char *wm8988_mono_mux[] = {"Stereo", "Mono (Left)", | |
308 | "Mono (Right)", "Digital Mono"}; | |
309 | static const struct soc_enum monomux = | |
310 | SOC_ENUM_SINGLE(WM8988_ADCIN, 6, 4, wm8988_mono_mux); | |
311 | static const struct snd_kcontrol_new wm8988_monomux_controls = | |
312 | SOC_DAPM_ENUM("Route", monomux); | |
313 | ||
314 | static const struct snd_soc_dapm_widget wm8988_dapm_widgets[] = { | |
315 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8988_PWR1, 1, 0), | |
316 | ||
317 | SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0, | |
318 | &wm8988_diffmux_controls), | |
319 | SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0, | |
320 | &wm8988_monomux_controls), | |
321 | SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0, | |
322 | &wm8988_monomux_controls), | |
323 | ||
324 | SND_SOC_DAPM_MUX("Left PGA Mux", WM8988_PWR1, 5, 0, | |
325 | &wm8988_left_pga_controls), | |
326 | SND_SOC_DAPM_MUX("Right PGA Mux", WM8988_PWR1, 4, 0, | |
327 | &wm8988_right_pga_controls), | |
328 | ||
329 | SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0, | |
330 | &wm8988_left_line_controls), | |
331 | SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0, | |
332 | &wm8988_right_line_controls), | |
333 | ||
334 | SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8988_PWR1, 2, 0), | |
335 | SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8988_PWR1, 3, 0), | |
336 | ||
337 | SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8988_PWR2, 7, 0), | |
338 | SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8988_PWR2, 8, 0), | |
339 | ||
340 | SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0, | |
341 | &wm8988_left_mixer_controls[0], | |
342 | ARRAY_SIZE(wm8988_left_mixer_controls)), | |
343 | SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0, | |
344 | &wm8988_right_mixer_controls[0], | |
345 | ARRAY_SIZE(wm8988_right_mixer_controls)), | |
346 | ||
347 | SND_SOC_DAPM_PGA("Right Out 2", WM8988_PWR2, 3, 0, NULL, 0), | |
348 | SND_SOC_DAPM_PGA("Left Out 2", WM8988_PWR2, 4, 0, NULL, 0), | |
349 | SND_SOC_DAPM_PGA("Right Out 1", WM8988_PWR2, 5, 0, NULL, 0), | |
350 | SND_SOC_DAPM_PGA("Left Out 1", WM8988_PWR2, 6, 0, NULL, 0), | |
351 | ||
352 | SND_SOC_DAPM_POST("LRC control", wm8988_lrc_control), | |
353 | ||
354 | SND_SOC_DAPM_OUTPUT("LOUT1"), | |
355 | SND_SOC_DAPM_OUTPUT("ROUT1"), | |
356 | SND_SOC_DAPM_OUTPUT("LOUT2"), | |
357 | SND_SOC_DAPM_OUTPUT("ROUT2"), | |
358 | SND_SOC_DAPM_OUTPUT("VREF"), | |
359 | ||
360 | SND_SOC_DAPM_INPUT("LINPUT1"), | |
361 | SND_SOC_DAPM_INPUT("LINPUT2"), | |
362 | SND_SOC_DAPM_INPUT("RINPUT1"), | |
363 | SND_SOC_DAPM_INPUT("RINPUT2"), | |
364 | }; | |
365 | ||
366 | static const struct snd_soc_dapm_route audio_map[] = { | |
367 | ||
368 | { "Left Line Mux", "Line 1", "LINPUT1" }, | |
369 | { "Left Line Mux", "Line 2", "LINPUT2" }, | |
370 | { "Left Line Mux", "PGA", "Left PGA Mux" }, | |
371 | { "Left Line Mux", "Differential", "Differential Mux" }, | |
372 | ||
373 | { "Right Line Mux", "Line 1", "RINPUT1" }, | |
374 | { "Right Line Mux", "Line 2", "RINPUT2" }, | |
375 | { "Right Line Mux", "PGA", "Right PGA Mux" }, | |
376 | { "Right Line Mux", "Differential", "Differential Mux" }, | |
377 | ||
378 | { "Left PGA Mux", "Line 1", "LINPUT1" }, | |
379 | { "Left PGA Mux", "Line 2", "LINPUT2" }, | |
380 | { "Left PGA Mux", "Differential", "Differential Mux" }, | |
381 | ||
382 | { "Right PGA Mux", "Line 1", "RINPUT1" }, | |
383 | { "Right PGA Mux", "Line 2", "RINPUT2" }, | |
384 | { "Right PGA Mux", "Differential", "Differential Mux" }, | |
385 | ||
386 | { "Differential Mux", "Line 1", "LINPUT1" }, | |
387 | { "Differential Mux", "Line 1", "RINPUT1" }, | |
388 | { "Differential Mux", "Line 2", "LINPUT2" }, | |
389 | { "Differential Mux", "Line 2", "RINPUT2" }, | |
390 | ||
391 | { "Left ADC Mux", "Stereo", "Left PGA Mux" }, | |
392 | { "Left ADC Mux", "Mono (Left)", "Left PGA Mux" }, | |
393 | { "Left ADC Mux", "Digital Mono", "Left PGA Mux" }, | |
394 | ||
395 | { "Right ADC Mux", "Stereo", "Right PGA Mux" }, | |
396 | { "Right ADC Mux", "Mono (Right)", "Right PGA Mux" }, | |
397 | { "Right ADC Mux", "Digital Mono", "Right PGA Mux" }, | |
398 | ||
399 | { "Left ADC", NULL, "Left ADC Mux" }, | |
400 | { "Right ADC", NULL, "Right ADC Mux" }, | |
401 | ||
402 | { "Left Line Mux", "Line 1", "LINPUT1" }, | |
403 | { "Left Line Mux", "Line 2", "LINPUT2" }, | |
404 | { "Left Line Mux", "PGA", "Left PGA Mux" }, | |
405 | { "Left Line Mux", "Differential", "Differential Mux" }, | |
406 | ||
407 | { "Right Line Mux", "Line 1", "RINPUT1" }, | |
408 | { "Right Line Mux", "Line 2", "RINPUT2" }, | |
409 | { "Right Line Mux", "PGA", "Right PGA Mux" }, | |
410 | { "Right Line Mux", "Differential", "Differential Mux" }, | |
411 | ||
412 | { "Left Mixer", "Playback Switch", "Left DAC" }, | |
413 | { "Left Mixer", "Left Bypass Switch", "Left Line Mux" }, | |
414 | { "Left Mixer", "Right Playback Switch", "Right DAC" }, | |
415 | { "Left Mixer", "Right Bypass Switch", "Right Line Mux" }, | |
416 | ||
417 | { "Right Mixer", "Left Playback Switch", "Left DAC" }, | |
418 | { "Right Mixer", "Left Bypass Switch", "Left Line Mux" }, | |
419 | { "Right Mixer", "Playback Switch", "Right DAC" }, | |
420 | { "Right Mixer", "Right Bypass Switch", "Right Line Mux" }, | |
421 | ||
422 | { "Left Out 1", NULL, "Left Mixer" }, | |
423 | { "LOUT1", NULL, "Left Out 1" }, | |
424 | { "Right Out 1", NULL, "Right Mixer" }, | |
425 | { "ROUT1", NULL, "Right Out 1" }, | |
426 | ||
427 | { "Left Out 2", NULL, "Left Mixer" }, | |
428 | { "LOUT2", NULL, "Left Out 2" }, | |
429 | { "Right Out 2", NULL, "Right Mixer" }, | |
430 | { "ROUT2", NULL, "Right Out 2" }, | |
431 | }; | |
432 | ||
433 | struct _coeff_div { | |
434 | u32 mclk; | |
435 | u32 rate; | |
436 | u16 fs; | |
437 | u8 sr:5; | |
438 | u8 usb:1; | |
439 | }; | |
440 | ||
441 | /* codec hifi mclk clock divider coefficients */ | |
442 | static const struct _coeff_div coeff_div[] = { | |
443 | /* 8k */ | |
444 | {12288000, 8000, 1536, 0x6, 0x0}, | |
445 | {11289600, 8000, 1408, 0x16, 0x0}, | |
446 | {18432000, 8000, 2304, 0x7, 0x0}, | |
447 | {16934400, 8000, 2112, 0x17, 0x0}, | |
448 | {12000000, 8000, 1500, 0x6, 0x1}, | |
449 | ||
450 | /* 11.025k */ | |
451 | {11289600, 11025, 1024, 0x18, 0x0}, | |
452 | {16934400, 11025, 1536, 0x19, 0x0}, | |
453 | {12000000, 11025, 1088, 0x19, 0x1}, | |
454 | ||
455 | /* 16k */ | |
456 | {12288000, 16000, 768, 0xa, 0x0}, | |
457 | {18432000, 16000, 1152, 0xb, 0x0}, | |
458 | {12000000, 16000, 750, 0xa, 0x1}, | |
459 | ||
460 | /* 22.05k */ | |
461 | {11289600, 22050, 512, 0x1a, 0x0}, | |
462 | {16934400, 22050, 768, 0x1b, 0x0}, | |
463 | {12000000, 22050, 544, 0x1b, 0x1}, | |
464 | ||
465 | /* 32k */ | |
466 | {12288000, 32000, 384, 0xc, 0x0}, | |
467 | {18432000, 32000, 576, 0xd, 0x0}, | |
468 | {12000000, 32000, 375, 0xa, 0x1}, | |
469 | ||
470 | /* 44.1k */ | |
471 | {11289600, 44100, 256, 0x10, 0x0}, | |
472 | {16934400, 44100, 384, 0x11, 0x0}, | |
473 | {12000000, 44100, 272, 0x11, 0x1}, | |
474 | ||
475 | /* 48k */ | |
476 | {12288000, 48000, 256, 0x0, 0x0}, | |
477 | {18432000, 48000, 384, 0x1, 0x0}, | |
478 | {12000000, 48000, 250, 0x0, 0x1}, | |
479 | ||
480 | /* 88.2k */ | |
481 | {11289600, 88200, 128, 0x1e, 0x0}, | |
482 | {16934400, 88200, 192, 0x1f, 0x0}, | |
483 | {12000000, 88200, 136, 0x1f, 0x1}, | |
484 | ||
485 | /* 96k */ | |
486 | {12288000, 96000, 128, 0xe, 0x0}, | |
487 | {18432000, 96000, 192, 0xf, 0x0}, | |
488 | {12000000, 96000, 125, 0xe, 0x1}, | |
489 | }; | |
490 | ||
491 | static inline int get_coeff(int mclk, int rate) | |
492 | { | |
493 | int i; | |
494 | ||
495 | for (i = 0; i < ARRAY_SIZE(coeff_div); i++) { | |
496 | if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk) | |
497 | return i; | |
498 | } | |
499 | ||
500 | return -EINVAL; | |
501 | } | |
502 | ||
503 | /* The set of rates we can generate from the above for each SYSCLK */ | |
504 | ||
505 | static unsigned int rates_12288[] = { | |
506 | 8000, 12000, 16000, 24000, 24000, 32000, 48000, 96000, | |
507 | }; | |
508 | ||
509 | static struct snd_pcm_hw_constraint_list constraints_12288 = { | |
510 | .count = ARRAY_SIZE(rates_12288), | |
511 | .list = rates_12288, | |
512 | }; | |
513 | ||
514 | static unsigned int rates_112896[] = { | |
515 | 8000, 11025, 22050, 44100, | |
516 | }; | |
517 | ||
518 | static struct snd_pcm_hw_constraint_list constraints_112896 = { | |
519 | .count = ARRAY_SIZE(rates_112896), | |
520 | .list = rates_112896, | |
521 | }; | |
522 | ||
523 | static unsigned int rates_12[] = { | |
524 | 8000, 11025, 12000, 16000, 22050, 2400, 32000, 41100, 48000, | |
525 | 48000, 88235, 96000, | |
526 | }; | |
527 | ||
528 | static struct snd_pcm_hw_constraint_list constraints_12 = { | |
529 | .count = ARRAY_SIZE(rates_12), | |
530 | .list = rates_12, | |
531 | }; | |
532 | ||
533 | /* | |
534 | * Note that this should be called from init rather than from hw_params. | |
535 | */ | |
536 | static int wm8988_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
537 | int clk_id, unsigned int freq, int dir) | |
538 | { | |
539 | struct snd_soc_codec *codec = codec_dai->codec; | |
540 | struct wm8988_priv *wm8988 = codec->private_data; | |
541 | ||
542 | switch (freq) { | |
543 | case 11289600: | |
544 | case 18432000: | |
545 | case 22579200: | |
546 | case 36864000: | |
547 | wm8988->sysclk_constraints = &constraints_112896; | |
548 | wm8988->sysclk = freq; | |
549 | return 0; | |
550 | ||
551 | case 12288000: | |
552 | case 16934400: | |
553 | case 24576000: | |
554 | case 33868800: | |
555 | wm8988->sysclk_constraints = &constraints_12288; | |
556 | wm8988->sysclk = freq; | |
557 | return 0; | |
558 | ||
559 | case 12000000: | |
560 | case 24000000: | |
561 | wm8988->sysclk_constraints = &constraints_12; | |
562 | wm8988->sysclk = freq; | |
563 | return 0; | |
564 | } | |
565 | return -EINVAL; | |
566 | } | |
567 | ||
568 | static int wm8988_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
569 | unsigned int fmt) | |
570 | { | |
571 | struct snd_soc_codec *codec = codec_dai->codec; | |
572 | u16 iface = 0; | |
573 | ||
574 | /* set master/slave audio interface */ | |
575 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
576 | case SND_SOC_DAIFMT_CBM_CFM: | |
577 | iface = 0x0040; | |
578 | break; | |
579 | case SND_SOC_DAIFMT_CBS_CFS: | |
580 | break; | |
581 | default: | |
582 | return -EINVAL; | |
583 | } | |
584 | ||
585 | /* interface format */ | |
586 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
587 | case SND_SOC_DAIFMT_I2S: | |
588 | iface |= 0x0002; | |
589 | break; | |
590 | case SND_SOC_DAIFMT_RIGHT_J: | |
591 | break; | |
592 | case SND_SOC_DAIFMT_LEFT_J: | |
593 | iface |= 0x0001; | |
594 | break; | |
595 | case SND_SOC_DAIFMT_DSP_A: | |
596 | iface |= 0x0003; | |
597 | break; | |
598 | case SND_SOC_DAIFMT_DSP_B: | |
599 | iface |= 0x0013; | |
600 | break; | |
601 | default: | |
602 | return -EINVAL; | |
603 | } | |
604 | ||
605 | /* clock inversion */ | |
606 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
607 | case SND_SOC_DAIFMT_NB_NF: | |
608 | break; | |
609 | case SND_SOC_DAIFMT_IB_IF: | |
610 | iface |= 0x0090; | |
611 | break; | |
612 | case SND_SOC_DAIFMT_IB_NF: | |
613 | iface |= 0x0080; | |
614 | break; | |
615 | case SND_SOC_DAIFMT_NB_IF: | |
616 | iface |= 0x0010; | |
617 | break; | |
618 | default: | |
619 | return -EINVAL; | |
620 | } | |
621 | ||
622 | wm8988_write(codec, WM8988_IFACE, iface); | |
623 | return 0; | |
624 | } | |
625 | ||
626 | static int wm8988_pcm_startup(struct snd_pcm_substream *substream, | |
627 | struct snd_soc_dai *dai) | |
628 | { | |
629 | struct snd_soc_codec *codec = dai->codec; | |
630 | struct wm8988_priv *wm8988 = codec->private_data; | |
631 | ||
632 | /* The set of sample rates that can be supported depends on the | |
633 | * MCLK supplied to the CODEC - enforce this. | |
634 | */ | |
635 | if (!wm8988->sysclk) { | |
636 | dev_err(codec->dev, | |
637 | "No MCLK configured, call set_sysclk() on init\n"); | |
638 | return -EINVAL; | |
639 | } | |
640 | ||
641 | snd_pcm_hw_constraint_list(substream->runtime, 0, | |
642 | SNDRV_PCM_HW_PARAM_RATE, | |
643 | wm8988->sysclk_constraints); | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
648 | static int wm8988_pcm_hw_params(struct snd_pcm_substream *substream, | |
649 | struct snd_pcm_hw_params *params, | |
650 | struct snd_soc_dai *dai) | |
651 | { | |
652 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
653 | struct snd_soc_device *socdev = rtd->socdev; | |
654 | struct snd_soc_codec *codec = socdev->card->codec; | |
655 | struct wm8988_priv *wm8988 = codec->private_data; | |
656 | u16 iface = wm8988_read_reg_cache(codec, WM8988_IFACE) & 0x1f3; | |
657 | u16 srate = wm8988_read_reg_cache(codec, WM8988_SRATE) & 0x180; | |
658 | int coeff; | |
659 | ||
660 | coeff = get_coeff(wm8988->sysclk, params_rate(params)); | |
661 | if (coeff < 0) { | |
662 | coeff = get_coeff(wm8988->sysclk / 2, params_rate(params)); | |
663 | srate |= 0x40; | |
664 | } | |
665 | if (coeff < 0) { | |
666 | dev_err(codec->dev, | |
667 | "Unable to configure sample rate %dHz with %dHz MCLK\n", | |
668 | params_rate(params), wm8988->sysclk); | |
669 | return coeff; | |
670 | } | |
671 | ||
672 | /* bit size */ | |
673 | switch (params_format(params)) { | |
674 | case SNDRV_PCM_FORMAT_S16_LE: | |
675 | break; | |
676 | case SNDRV_PCM_FORMAT_S20_3LE: | |
677 | iface |= 0x0004; | |
678 | break; | |
679 | case SNDRV_PCM_FORMAT_S24_LE: | |
680 | iface |= 0x0008; | |
681 | break; | |
682 | case SNDRV_PCM_FORMAT_S32_LE: | |
683 | iface |= 0x000c; | |
684 | break; | |
685 | } | |
686 | ||
687 | /* set iface & srate */ | |
688 | wm8988_write(codec, WM8988_IFACE, iface); | |
689 | if (coeff >= 0) | |
690 | wm8988_write(codec, WM8988_SRATE, srate | | |
691 | (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); | |
692 | ||
693 | return 0; | |
694 | } | |
695 | ||
696 | static int wm8988_mute(struct snd_soc_dai *dai, int mute) | |
697 | { | |
698 | struct snd_soc_codec *codec = dai->codec; | |
699 | u16 mute_reg = wm8988_read_reg_cache(codec, WM8988_ADCDAC) & 0xfff7; | |
700 | ||
701 | if (mute) | |
702 | wm8988_write(codec, WM8988_ADCDAC, mute_reg | 0x8); | |
703 | else | |
704 | wm8988_write(codec, WM8988_ADCDAC, mute_reg); | |
705 | return 0; | |
706 | } | |
707 | ||
708 | static int wm8988_set_bias_level(struct snd_soc_codec *codec, | |
709 | enum snd_soc_bias_level level) | |
710 | { | |
711 | u16 pwr_reg = wm8988_read_reg_cache(codec, WM8988_PWR1) & ~0x1c1; | |
712 | ||
713 | switch (level) { | |
714 | case SND_SOC_BIAS_ON: | |
715 | break; | |
716 | ||
717 | case SND_SOC_BIAS_PREPARE: | |
718 | /* VREF, VMID=2x50k, digital enabled */ | |
719 | wm8988_write(codec, WM8988_PWR1, pwr_reg | 0x00c0); | |
720 | break; | |
721 | ||
722 | case SND_SOC_BIAS_STANDBY: | |
723 | if (codec->bias_level == SND_SOC_BIAS_OFF) { | |
724 | /* VREF, VMID=2x5k */ | |
725 | wm8988_write(codec, WM8988_PWR1, pwr_reg | 0x1c1); | |
726 | ||
727 | /* Charge caps */ | |
728 | msleep(100); | |
729 | } | |
730 | ||
731 | /* VREF, VMID=2*500k, digital stopped */ | |
732 | wm8988_write(codec, WM8988_PWR1, pwr_reg | 0x0141); | |
733 | break; | |
734 | ||
735 | case SND_SOC_BIAS_OFF: | |
736 | wm8988_write(codec, WM8988_PWR1, 0x0000); | |
737 | break; | |
738 | } | |
739 | codec->bias_level = level; | |
740 | return 0; | |
741 | } | |
742 | ||
743 | #define WM8988_RATES SNDRV_PCM_RATE_8000_96000 | |
744 | ||
745 | #define WM8988_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
746 | SNDRV_PCM_FMTBIT_S24_LE) | |
747 | ||
748 | static struct snd_soc_dai_ops wm8988_ops = { | |
749 | .startup = wm8988_pcm_startup, | |
750 | .hw_params = wm8988_pcm_hw_params, | |
751 | .set_fmt = wm8988_set_dai_fmt, | |
752 | .set_sysclk = wm8988_set_dai_sysclk, | |
753 | .digital_mute = wm8988_mute, | |
754 | }; | |
755 | ||
756 | struct snd_soc_dai wm8988_dai = { | |
757 | .name = "WM8988", | |
758 | .playback = { | |
759 | .stream_name = "Playback", | |
760 | .channels_min = 1, | |
761 | .channels_max = 2, | |
762 | .rates = WM8988_RATES, | |
763 | .formats = WM8988_FORMATS, | |
764 | }, | |
765 | .capture = { | |
766 | .stream_name = "Capture", | |
767 | .channels_min = 1, | |
768 | .channels_max = 2, | |
769 | .rates = WM8988_RATES, | |
770 | .formats = WM8988_FORMATS, | |
771 | }, | |
772 | .ops = &wm8988_ops, | |
773 | .symmetric_rates = 1, | |
774 | }; | |
775 | EXPORT_SYMBOL_GPL(wm8988_dai); | |
776 | ||
777 | static int wm8988_suspend(struct platform_device *pdev, pm_message_t state) | |
778 | { | |
779 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
780 | struct snd_soc_codec *codec = socdev->card->codec; | |
781 | ||
782 | wm8988_set_bias_level(codec, SND_SOC_BIAS_OFF); | |
783 | return 0; | |
784 | } | |
785 | ||
786 | static int wm8988_resume(struct platform_device *pdev) | |
787 | { | |
788 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
789 | struct snd_soc_codec *codec = socdev->card->codec; | |
790 | int i; | |
791 | u8 data[2]; | |
792 | u16 *cache = codec->reg_cache; | |
793 | ||
794 | /* Sync reg_cache with the hardware */ | |
795 | for (i = 0; i < WM8988_NUM_REG; i++) { | |
796 | if (i == WM8988_RESET) | |
797 | continue; | |
798 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); | |
799 | data[1] = cache[i] & 0x00ff; | |
800 | codec->hw_write(codec->control_data, data, 2); | |
801 | } | |
802 | ||
803 | wm8988_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
804 | ||
805 | return 0; | |
806 | } | |
807 | ||
808 | static struct snd_soc_codec *wm8988_codec; | |
809 | ||
810 | static int wm8988_probe(struct platform_device *pdev) | |
811 | { | |
812 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
813 | struct snd_soc_codec *codec; | |
814 | int ret = 0; | |
815 | ||
816 | if (wm8988_codec == NULL) { | |
817 | dev_err(&pdev->dev, "Codec device not registered\n"); | |
818 | return -ENODEV; | |
819 | } | |
820 | ||
821 | socdev->card->codec = wm8988_codec; | |
822 | codec = wm8988_codec; | |
823 | ||
824 | /* register pcms */ | |
825 | ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); | |
826 | if (ret < 0) { | |
827 | dev_err(codec->dev, "failed to create pcms: %d\n", ret); | |
828 | goto pcm_err; | |
829 | } | |
830 | ||
831 | snd_soc_add_controls(codec, wm8988_snd_controls, | |
832 | ARRAY_SIZE(wm8988_snd_controls)); | |
833 | snd_soc_dapm_new_controls(codec, wm8988_dapm_widgets, | |
834 | ARRAY_SIZE(wm8988_dapm_widgets)); | |
835 | snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); | |
836 | snd_soc_dapm_new_widgets(codec); | |
837 | ||
838 | ret = snd_soc_init_card(socdev); | |
839 | if (ret < 0) { | |
840 | dev_err(codec->dev, "failed to register card: %d\n", ret); | |
841 | goto card_err; | |
842 | } | |
843 | ||
844 | return ret; | |
845 | ||
846 | card_err: | |
847 | snd_soc_free_pcms(socdev); | |
848 | snd_soc_dapm_free(socdev); | |
849 | pcm_err: | |
850 | return ret; | |
851 | } | |
852 | ||
853 | static int wm8988_remove(struct platform_device *pdev) | |
854 | { | |
855 | struct snd_soc_device *socdev = platform_get_drvdata(pdev); | |
856 | ||
857 | snd_soc_free_pcms(socdev); | |
858 | snd_soc_dapm_free(socdev); | |
859 | ||
860 | return 0; | |
861 | } | |
862 | ||
863 | struct snd_soc_codec_device soc_codec_dev_wm8988 = { | |
864 | .probe = wm8988_probe, | |
865 | .remove = wm8988_remove, | |
866 | .suspend = wm8988_suspend, | |
867 | .resume = wm8988_resume, | |
868 | }; | |
869 | EXPORT_SYMBOL_GPL(soc_codec_dev_wm8988); | |
870 | ||
871 | static int wm8988_register(struct wm8988_priv *wm8988) | |
872 | { | |
873 | struct snd_soc_codec *codec = &wm8988->codec; | |
874 | int ret; | |
875 | u16 reg; | |
876 | ||
877 | if (wm8988_codec) { | |
878 | dev_err(codec->dev, "Another WM8988 is registered\n"); | |
879 | ret = -EINVAL; | |
880 | goto err; | |
881 | } | |
882 | ||
883 | mutex_init(&codec->mutex); | |
884 | INIT_LIST_HEAD(&codec->dapm_widgets); | |
885 | INIT_LIST_HEAD(&codec->dapm_paths); | |
886 | ||
887 | codec->private_data = wm8988; | |
888 | codec->name = "WM8988"; | |
889 | codec->owner = THIS_MODULE; | |
890 | codec->read = wm8988_read_reg_cache; | |
891 | codec->write = wm8988_write; | |
892 | codec->dai = &wm8988_dai; | |
893 | codec->num_dai = 1; | |
894 | codec->reg_cache_size = ARRAY_SIZE(wm8988->reg_cache); | |
895 | codec->reg_cache = &wm8988->reg_cache; | |
896 | codec->bias_level = SND_SOC_BIAS_OFF; | |
897 | codec->set_bias_level = wm8988_set_bias_level; | |
898 | ||
899 | memcpy(codec->reg_cache, wm8988_reg, | |
900 | sizeof(wm8988_reg)); | |
901 | ||
902 | ret = wm8988_reset(codec); | |
903 | if (ret < 0) { | |
904 | dev_err(codec->dev, "Failed to issue reset\n"); | |
905 | return ret; | |
906 | } | |
907 | ||
908 | /* set the update bits (we always update left then right) */ | |
909 | reg = wm8988_read_reg_cache(codec, WM8988_RADC); | |
910 | wm8988_write(codec, WM8988_RADC, reg | 0x100); | |
911 | reg = wm8988_read_reg_cache(codec, WM8988_RDAC); | |
912 | wm8988_write(codec, WM8988_RDAC, reg | 0x0100); | |
913 | reg = wm8988_read_reg_cache(codec, WM8988_ROUT1V); | |
914 | wm8988_write(codec, WM8988_ROUT1V, reg | 0x0100); | |
915 | reg = wm8988_read_reg_cache(codec, WM8988_ROUT2V); | |
916 | wm8988_write(codec, WM8988_ROUT2V, reg | 0x0100); | |
917 | reg = wm8988_read_reg_cache(codec, WM8988_RINVOL); | |
918 | wm8988_write(codec, WM8988_RINVOL, reg | 0x0100); | |
919 | ||
920 | wm8988_set_bias_level(&wm8988->codec, SND_SOC_BIAS_STANDBY); | |
921 | ||
922 | wm8988_dai.dev = codec->dev; | |
923 | ||
924 | wm8988_codec = codec; | |
925 | ||
926 | ret = snd_soc_register_codec(codec); | |
927 | if (ret != 0) { | |
928 | dev_err(codec->dev, "Failed to register codec: %d\n", ret); | |
929 | return ret; | |
930 | } | |
931 | ||
932 | ret = snd_soc_register_dai(&wm8988_dai); | |
933 | if (ret != 0) { | |
934 | dev_err(codec->dev, "Failed to register DAI: %d\n", ret); | |
935 | snd_soc_unregister_codec(codec); | |
936 | return ret; | |
937 | } | |
938 | ||
939 | return 0; | |
940 | ||
941 | err: | |
942 | kfree(wm8988); | |
943 | return ret; | |
944 | } | |
945 | ||
946 | static void wm8988_unregister(struct wm8988_priv *wm8988) | |
947 | { | |
948 | wm8988_set_bias_level(&wm8988->codec, SND_SOC_BIAS_OFF); | |
949 | snd_soc_unregister_dai(&wm8988_dai); | |
950 | snd_soc_unregister_codec(&wm8988->codec); | |
951 | kfree(wm8988); | |
952 | wm8988_codec = NULL; | |
953 | } | |
954 | ||
955 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
956 | static int wm8988_i2c_probe(struct i2c_client *i2c, | |
957 | const struct i2c_device_id *id) | |
958 | { | |
959 | struct wm8988_priv *wm8988; | |
960 | struct snd_soc_codec *codec; | |
961 | ||
962 | wm8988 = kzalloc(sizeof(struct wm8988_priv), GFP_KERNEL); | |
963 | if (wm8988 == NULL) | |
964 | return -ENOMEM; | |
965 | ||
966 | codec = &wm8988->codec; | |
967 | codec->hw_write = (hw_write_t)i2c_master_send; | |
968 | ||
969 | i2c_set_clientdata(i2c, wm8988); | |
970 | codec->control_data = i2c; | |
971 | ||
972 | codec->dev = &i2c->dev; | |
973 | ||
974 | return wm8988_register(wm8988); | |
975 | } | |
976 | ||
977 | static int wm8988_i2c_remove(struct i2c_client *client) | |
978 | { | |
979 | struct wm8988_priv *wm8988 = i2c_get_clientdata(client); | |
980 | wm8988_unregister(wm8988); | |
981 | return 0; | |
982 | } | |
983 | ||
984 | static const struct i2c_device_id wm8988_i2c_id[] = { | |
985 | { "wm8988", 0 }, | |
986 | { } | |
987 | }; | |
988 | MODULE_DEVICE_TABLE(i2c, wm8988_i2c_id); | |
989 | ||
990 | static struct i2c_driver wm8988_i2c_driver = { | |
991 | .driver = { | |
992 | .name = "WM8988", | |
993 | .owner = THIS_MODULE, | |
994 | }, | |
995 | .probe = wm8988_i2c_probe, | |
996 | .remove = wm8988_i2c_remove, | |
997 | .id_table = wm8988_i2c_id, | |
998 | }; | |
999 | #endif | |
1000 | ||
1001 | #if defined(CONFIG_SPI_MASTER) | |
1002 | static int wm8988_spi_write(struct spi_device *spi, const char *data, int len) | |
1003 | { | |
1004 | struct spi_transfer t; | |
1005 | struct spi_message m; | |
1006 | u8 msg[2]; | |
1007 | ||
1008 | if (len <= 0) | |
1009 | return 0; | |
1010 | ||
1011 | msg[0] = data[0]; | |
1012 | msg[1] = data[1]; | |
1013 | ||
1014 | spi_message_init(&m); | |
1015 | memset(&t, 0, (sizeof t)); | |
1016 | ||
1017 | t.tx_buf = &msg[0]; | |
1018 | t.len = len; | |
1019 | ||
1020 | spi_message_add_tail(&t, &m); | |
1021 | spi_sync(spi, &m); | |
1022 | ||
1023 | return len; | |
1024 | } | |
1025 | ||
1026 | static int __devinit wm8988_spi_probe(struct spi_device *spi) | |
1027 | { | |
1028 | struct wm8988_priv *wm8988; | |
1029 | struct snd_soc_codec *codec; | |
1030 | ||
1031 | wm8988 = kzalloc(sizeof(struct wm8988_priv), GFP_KERNEL); | |
1032 | if (wm8988 == NULL) | |
1033 | return -ENOMEM; | |
1034 | ||
1035 | codec = &wm8988->codec; | |
1036 | codec->hw_write = (hw_write_t)wm8988_spi_write; | |
1037 | codec->control_data = spi; | |
1038 | codec->dev = &spi->dev; | |
1039 | ||
1040 | spi->dev.driver_data = wm8988; | |
1041 | ||
1042 | return wm8988_register(wm8988); | |
1043 | } | |
1044 | ||
1045 | static int __devexit wm8988_spi_remove(struct spi_device *spi) | |
1046 | { | |
1047 | struct wm8988_priv *wm8988 = spi->dev.driver_data; | |
1048 | ||
1049 | wm8988_unregister(wm8988); | |
1050 | ||
1051 | return 0; | |
1052 | } | |
1053 | ||
1054 | static struct spi_driver wm8988_spi_driver = { | |
1055 | .driver = { | |
1056 | .name = "wm8988", | |
1057 | .bus = &spi_bus_type, | |
1058 | .owner = THIS_MODULE, | |
1059 | }, | |
1060 | .probe = wm8988_spi_probe, | |
1061 | .remove = __devexit_p(wm8988_spi_remove), | |
1062 | }; | |
1063 | #endif | |
1064 | ||
1065 | static int __init wm8988_modinit(void) | |
1066 | { | |
1067 | int ret; | |
1068 | ||
1069 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
1070 | ret = i2c_add_driver(&wm8988_i2c_driver); | |
1071 | if (ret != 0) | |
1072 | pr_err("WM8988: Unable to register I2C driver: %d\n", ret); | |
1073 | #endif | |
1074 | #if defined(CONFIG_SPI_MASTER) | |
1075 | ret = spi_register_driver(&wm8988_spi_driver); | |
1076 | if (ret != 0) | |
1077 | pr_err("WM8988: Unable to register SPI driver: %d\n", ret); | |
1078 | #endif | |
1079 | return ret; | |
1080 | } | |
1081 | module_init(wm8988_modinit); | |
1082 | ||
1083 | static void __exit wm8988_exit(void) | |
1084 | { | |
1085 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
1086 | i2c_del_driver(&wm8988_i2c_driver); | |
1087 | #endif | |
1088 | #if defined(CONFIG_SPI_MASTER) | |
1089 | spi_unregister_driver(&wm8988_spi_driver); | |
1090 | #endif | |
1091 | } | |
1092 | module_exit(wm8988_exit); | |
1093 | ||
1094 | ||
1095 | MODULE_DESCRIPTION("ASoC WM8988 driver"); | |
1096 | MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); | |
1097 | MODULE_LICENSE("GPL"); |