~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/sound/soc/codecs/wm8750.c

Version: ~ [ linux-5.13-rc5 ] ~ [ linux-5.12.9 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.42 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.124 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.193 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.235 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.271 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.271 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.18.140 ] ~ [ linux-3.16.85 ] ~ [ linux-3.14.79 ] ~ [ linux-3.12.74 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 // SPDX-License-Identifier: GPL-2.0-only
  2 /*
  3  * wm8750.c -- WM8750 ALSA SoC audio driver
  4  *
  5  * Copyright 2005 Openedhand Ltd.
  6  *
  7  * Author: Richard Purdie <richard@openedhand.com>
  8  *
  9  * Based on WM8753.c
 10  */
 11 
 12 #include <linux/module.h>
 13 #include <linux/moduleparam.h>
 14 #include <linux/init.h>
 15 #include <linux/delay.h>
 16 #include <linux/pm.h>
 17 #include <linux/i2c.h>
 18 #include <linux/regmap.h>
 19 #include <linux/spi/spi.h>
 20 #include <linux/slab.h>
 21 #include <linux/of_device.h>
 22 #include <sound/core.h>
 23 #include <sound/pcm.h>
 24 #include <sound/pcm_params.h>
 25 #include <sound/soc.h>
 26 #include <sound/initval.h>
 27 
 28 #include "wm8750.h"
 29 
 30 /*
 31  * wm8750 register cache
 32  * We can't read the WM8750 register space when we
 33  * are using 2 wire for device control, so we cache them instead.
 34  */
 35 static const struct reg_default wm8750_reg_defaults[] = {
 36         {  0, 0x0097 },
 37         {  1, 0x0097 },
 38         {  2, 0x0079 },
 39         {  3, 0x0079 },
 40         {  4, 0x0000 },
 41         {  5, 0x0008 },
 42         {  6, 0x0000 },
 43         {  7, 0x000a },
 44         {  8, 0x0000 },
 45         {  9, 0x0000 },
 46         { 10, 0x00ff },
 47         { 11, 0x00ff },
 48         { 12, 0x000f },
 49         { 13, 0x000f },
 50         { 14, 0x0000 },
 51         { 15, 0x0000 },
 52         { 16, 0x0000 },
 53         { 17, 0x007b },
 54         { 18, 0x0000 },
 55         { 19, 0x0032 },
 56         { 20, 0x0000 },
 57         { 21, 0x00c3 },
 58         { 22, 0x00c3 },
 59         { 23, 0x00c0 },
 60         { 24, 0x0000 },
 61         { 25, 0x0000 },
 62         { 26, 0x0000 },
 63         { 27, 0x0000 },
 64         { 28, 0x0000 },
 65         { 29, 0x0000 },
 66         { 30, 0x0000 },
 67         { 31, 0x0000 },
 68         { 32, 0x0000 },
 69         { 33, 0x0000 },
 70         { 34, 0x0050 },
 71         { 35, 0x0050 },
 72         { 36, 0x0050 },
 73         { 37, 0x0050 },
 74         { 38, 0x0050 },
 75         { 39, 0x0050 },
 76         { 40, 0x0079 },
 77         { 41, 0x0079 },
 78         { 42, 0x0079 },
 79 };
 80 
 81 /* codec private data */
 82 struct wm8750_priv {
 83         unsigned int sysclk;
 84 };
 85 
 86 #define wm8750_reset(c) snd_soc_component_write(c, WM8750_RESET, 0)
 87 
 88 /*
 89  * WM8750 Controls
 90  */
 91 static const char *wm8750_bass[] = {"Linear Control", "Adaptive Boost"};
 92 static const char *wm8750_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
 93 static const char *wm8750_treble[] = {"8kHz", "4kHz"};
 94 static const char *wm8750_3d_lc[] = {"200Hz", "500Hz"};
 95 static const char *wm8750_3d_uc[] = {"2.2kHz", "1.5kHz"};
 96 static const char *wm8750_3d_func[] = {"Capture", "Playback"};
 97 static const char *wm8750_alc_func[] = {"Off", "Right", "Left", "Stereo"};
 98 static const char *wm8750_ng_type[] = {"Constant PGA Gain",
 99         "Mute ADC Output"};
100 static const char *wm8750_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA",
101         "Differential"};
102 static const char *wm8750_pga_sel[] = {"Line 1", "Line 2", "Line 3",
103         "Differential"};
104 static const char *wm8750_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut",
105         "ROUT1"};
106 static const char *wm8750_diff_sel[] = {"Line 1", "Line 2"};
107 static const char *wm8750_adcpol[] = {"Normal", "L Invert", "R Invert",
108         "L + R Invert"};
109 static const char *wm8750_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
110 static const char *wm8750_mono_mux[] = {"Stereo", "Mono (Left)",
111         "Mono (Right)", "Digital Mono"};
112 
113 static const struct soc_enum wm8750_enum[] = {
114 SOC_ENUM_SINGLE(WM8750_BASS, 7, 2, wm8750_bass),
115 SOC_ENUM_SINGLE(WM8750_BASS, 6, 2, wm8750_bass_filter),
116 SOC_ENUM_SINGLE(WM8750_TREBLE, 6, 2, wm8750_treble),
117 SOC_ENUM_SINGLE(WM8750_3D, 5, 2, wm8750_3d_lc),
118 SOC_ENUM_SINGLE(WM8750_3D, 6, 2, wm8750_3d_uc),
119 SOC_ENUM_SINGLE(WM8750_3D, 7, 2, wm8750_3d_func),
120 SOC_ENUM_SINGLE(WM8750_ALC1, 7, 4, wm8750_alc_func),
121 SOC_ENUM_SINGLE(WM8750_NGATE, 1, 2, wm8750_ng_type),
122 SOC_ENUM_SINGLE(WM8750_LOUTM1, 0, 5, wm8750_line_mux),
123 SOC_ENUM_SINGLE(WM8750_ROUTM1, 0, 5, wm8750_line_mux),
124 SOC_ENUM_SINGLE(WM8750_LADCIN, 6, 4, wm8750_pga_sel), /* 10 */
125 SOC_ENUM_SINGLE(WM8750_RADCIN, 6, 4, wm8750_pga_sel),
126 SOC_ENUM_SINGLE(WM8750_ADCTL2, 7, 4, wm8750_out3),
127 SOC_ENUM_SINGLE(WM8750_ADCIN, 8, 2, wm8750_diff_sel),
128 SOC_ENUM_SINGLE(WM8750_ADCDAC, 5, 4, wm8750_adcpol),
129 SOC_ENUM_SINGLE(WM8750_ADCDAC, 1, 4, wm8750_deemph),
130 SOC_ENUM_SINGLE(WM8750_ADCIN, 6, 4, wm8750_mono_mux), /* 16 */
131 
132 };
133 
134 static const struct snd_kcontrol_new wm8750_snd_controls[] = {
135 
136 SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL, WM8750_RINVOL, 0, 63, 0),
137 SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL, WM8750_RINVOL, 6, 1, 0),
138 SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL, WM8750_RINVOL, 7, 1, 1),
139 
140 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V,
141         WM8750_ROUT1V, 7, 1, 0),
142 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V,
143         WM8750_ROUT2V, 7, 1, 0),
144 
145 SOC_ENUM("Playback De-emphasis", wm8750_enum[15]),
146 
147 SOC_ENUM("Capture Polarity", wm8750_enum[14]),
148 SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC, 7, 1, 0),
149 SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC, 8, 1, 0),
150 
151 SOC_DOUBLE_R("PCM Volume", WM8750_LDAC, WM8750_RDAC, 0, 255, 0),
152 
153 SOC_ENUM("Bass Boost", wm8750_enum[0]),
154 SOC_ENUM("Bass Filter", wm8750_enum[1]),
155 SOC_SINGLE("Bass Volume", WM8750_BASS, 0, 15, 1),
156 
157 SOC_SINGLE("Treble Volume", WM8750_TREBLE, 0, 15, 1),
158 SOC_ENUM("Treble Cut-off", wm8750_enum[2]),
159 
160 SOC_SINGLE("3D Switch", WM8750_3D, 0, 1, 0),
161 SOC_SINGLE("3D Volume", WM8750_3D, 1, 15, 0),
162 SOC_ENUM("3D Lower Cut-off", wm8750_enum[3]),
163 SOC_ENUM("3D Upper Cut-off", wm8750_enum[4]),
164 SOC_ENUM("3D Mode", wm8750_enum[5]),
165 
166 SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1, 0, 7, 0),
167 SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1, 4, 7, 0),
168 SOC_ENUM("ALC Capture Function", wm8750_enum[6]),
169 SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2, 7, 1, 0),
170 SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2, 0, 15, 0),
171 SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3, 4, 15, 0),
172 SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3, 0, 15, 0),
173 SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE, 3, 31, 0),
174 SOC_ENUM("ALC Capture NG Type", wm8750_enum[4]),
175 SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE, 0, 1, 0),
176 
177 SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC, 0, 255, 0),
178 SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC, 0, 255, 0),
179 
180 SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1, 0, 1, 0),
181 SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1, 1, 1, 0),
182 
183 SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2, 4, 1, 0),
184 
185 /* Unimplemented */
186 /* ADCDAC Bit 0 - ADCHPD */
187 /* ADCDAC Bit 4 - HPOR */
188 /* ADCTL1 Bit 2,3 - DATSEL */
189 /* ADCTL1 Bit 4,5 - DMONOMIX */
190 /* ADCTL1 Bit 6,7 - VSEL */
191 /* ADCTL2 Bit 2 - LRCM */
192 /* ADCTL2 Bit 3 - TRI */
193 /* ADCTL3 Bit 5 - HPFLREN */
194 /* ADCTL3 Bit 6 - VROI */
195 /* ADCTL3 Bit 7,8 - ADCLRM */
196 /* ADCIN Bit 4 - LDCM */
197 /* ADCIN Bit 5 - RDCM */
198 
199 SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN, WM8750_RADCIN, 4, 3, 0),
200 
201 SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1,
202         WM8750_LOUTM2, 4, 7, 1),
203 SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1,
204         WM8750_ROUTM2, 4, 7, 1),
205 SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1,
206         WM8750_MOUTM2, 4, 7, 1),
207 
208 SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV, 7, 1, 0),
209 
210 SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V, WM8750_ROUT1V,
211         0, 127, 0),
212 SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V, WM8750_ROUT2V,
213         0, 127, 0),
214 
215 SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV, 0, 127, 0),
216 
217 };
218 
219 /*
220  * DAPM Controls
221  */
222 
223 /* Left Mixer */
224 static const struct snd_kcontrol_new wm8750_left_mixer_controls[] = {
225 SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1, 8, 1, 0),
226 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1, 7, 1, 0),
227 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2, 8, 1, 0),
228 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2, 7, 1, 0),
229 };
230 
231 /* Right Mixer */
232 static const struct snd_kcontrol_new wm8750_right_mixer_controls[] = {
233 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1, 8, 1, 0),
234 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1, 7, 1, 0),
235 SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2, 8, 1, 0),
236 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2, 7, 1, 0),
237 };
238 
239 /* Mono Mixer */
240 static const struct snd_kcontrol_new wm8750_mono_mixer_controls[] = {
241 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1, 8, 1, 0),
242 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1, 7, 1, 0),
243 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2, 8, 1, 0),
244 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2, 7, 1, 0),
245 };
246 
247 /* Left Line Mux */
248 static const struct snd_kcontrol_new wm8750_left_line_controls =
249 SOC_DAPM_ENUM("Route", wm8750_enum[8]);
250 
251 /* Right Line Mux */
252 static const struct snd_kcontrol_new wm8750_right_line_controls =
253 SOC_DAPM_ENUM("Route", wm8750_enum[9]);
254 
255 /* Left PGA Mux */
256 static const struct snd_kcontrol_new wm8750_left_pga_controls =
257 SOC_DAPM_ENUM("Route", wm8750_enum[10]);
258 
259 /* Right PGA Mux */
260 static const struct snd_kcontrol_new wm8750_right_pga_controls =
261 SOC_DAPM_ENUM("Route", wm8750_enum[11]);
262 
263 /* Out 3 Mux */
264 static const struct snd_kcontrol_new wm8750_out3_controls =
265 SOC_DAPM_ENUM("Route", wm8750_enum[12]);
266 
267 /* Differential Mux */
268 static const struct snd_kcontrol_new wm8750_diffmux_controls =
269 SOC_DAPM_ENUM("Route", wm8750_enum[13]);
270 
271 /* Mono ADC Mux */
272 static const struct snd_kcontrol_new wm8750_monomux_controls =
273 SOC_DAPM_ENUM("Route", wm8750_enum[16]);
274 
275 static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
276         SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
277                 &wm8750_left_mixer_controls[0],
278                 ARRAY_SIZE(wm8750_left_mixer_controls)),
279         SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
280                 &wm8750_right_mixer_controls[0],
281                 ARRAY_SIZE(wm8750_right_mixer_controls)),
282         SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2, 2, 0,
283                 &wm8750_mono_mixer_controls[0],
284                 ARRAY_SIZE(wm8750_mono_mixer_controls)),
285 
286         SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2, 3, 0, NULL, 0),
287         SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2, 4, 0, NULL, 0),
288         SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2, 5, 0, NULL, 0),
289         SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2, 6, 0, NULL, 0),
290         SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2, 7, 0),
291         SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2, 8, 0),
292 
293         SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1, 1, 0),
294         SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1, 2, 0),
295         SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1, 3, 0),
296 
297         SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1, 5, 0,
298                 &wm8750_left_pga_controls),
299         SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1, 4, 0,
300                 &wm8750_right_pga_controls),
301         SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
302                 &wm8750_left_line_controls),
303         SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
304                 &wm8750_right_line_controls),
305 
306         SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8750_out3_controls),
307         SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2, 1, 0, NULL, 0),
308         SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2, 2, 0, NULL, 0),
309 
310         SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
311                 &wm8750_diffmux_controls),
312         SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
313                 &wm8750_monomux_controls),
314         SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
315                 &wm8750_monomux_controls),
316 
317         SND_SOC_DAPM_OUTPUT("LOUT1"),
318         SND_SOC_DAPM_OUTPUT("ROUT1"),
319         SND_SOC_DAPM_OUTPUT("LOUT2"),
320         SND_SOC_DAPM_OUTPUT("ROUT2"),
321         SND_SOC_DAPM_OUTPUT("MONO1"),
322         SND_SOC_DAPM_OUTPUT("OUT3"),
323         SND_SOC_DAPM_VMID("VREF"),
324 
325         SND_SOC_DAPM_INPUT("LINPUT1"),
326         SND_SOC_DAPM_INPUT("LINPUT2"),
327         SND_SOC_DAPM_INPUT("LINPUT3"),
328         SND_SOC_DAPM_INPUT("RINPUT1"),
329         SND_SOC_DAPM_INPUT("RINPUT2"),
330         SND_SOC_DAPM_INPUT("RINPUT3"),
331 };
332 
333 static const struct snd_soc_dapm_route wm8750_dapm_routes[] = {
334         /* left mixer */
335         {"Left Mixer", "Playback Switch", "Left DAC"},
336         {"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
337         {"Left Mixer", "Right Playback Switch", "Right DAC"},
338         {"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
339 
340         /* right mixer */
341         {"Right Mixer", "Left Playback Switch", "Left DAC"},
342         {"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
343         {"Right Mixer", "Playback Switch", "Right DAC"},
344         {"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
345 
346         /* left out 1 */
347         {"Left Out 1", NULL, "Left Mixer"},
348         {"LOUT1", NULL, "Left Out 1"},
349 
350         /* left out 2 */
351         {"Left Out 2", NULL, "Left Mixer"},
352         {"LOUT2", NULL, "Left Out 2"},
353 
354         /* right out 1 */
355         {"Right Out 1", NULL, "Right Mixer"},
356         {"ROUT1", NULL, "Right Out 1"},
357 
358         /* right out 2 */
359         {"Right Out 2", NULL, "Right Mixer"},
360         {"ROUT2", NULL, "Right Out 2"},
361 
362         /* mono mixer */
363         {"Mono Mixer", "Left Playback Switch", "Left DAC"},
364         {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
365         {"Mono Mixer", "Right Playback Switch", "Right DAC"},
366         {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
367 
368         /* mono out */
369         {"Mono Out 1", NULL, "Mono Mixer"},
370         {"MONO1", NULL, "Mono Out 1"},
371 
372         /* out 3 */
373         {"Out3 Mux", "VREF", "VREF"},
374         {"Out3 Mux", "ROUT1 + Vol", "ROUT1"},
375         {"Out3 Mux", "ROUT1", "Right Mixer"},
376         {"Out3 Mux", "MonoOut", "MONO1"},
377         {"Out 3", NULL, "Out3 Mux"},
378         {"OUT3", NULL, "Out 3"},
379 
380         /* Left Line Mux */
381         {"Left Line Mux", "Line 1", "LINPUT1"},
382         {"Left Line Mux", "Line 2", "LINPUT2"},
383         {"Left Line Mux", "Line 3", "LINPUT3"},
384         {"Left Line Mux", "PGA", "Left PGA Mux"},
385         {"Left Line Mux", "Differential", "Differential Mux"},
386 
387         /* Right Line Mux */
388         {"Right Line Mux", "Line 1", "RINPUT1"},
389         {"Right Line Mux", "Line 2", "RINPUT2"},
390         {"Right Line Mux", "Line 3", "RINPUT3"},
391         {"Right Line Mux", "PGA", "Right PGA Mux"},
392         {"Right Line Mux", "Differential", "Differential Mux"},
393 
394         /* Left PGA Mux */
395         {"Left PGA Mux", "Line 1", "LINPUT1"},
396         {"Left PGA Mux", "Line 2", "LINPUT2"},
397         {"Left PGA Mux", "Line 3", "LINPUT3"},
398         {"Left PGA Mux", "Differential", "Differential Mux"},
399 
400         /* Right PGA Mux */
401         {"Right PGA Mux", "Line 1", "RINPUT1"},
402         {"Right PGA Mux", "Line 2", "RINPUT2"},
403         {"Right PGA Mux", "Line 3", "RINPUT3"},
404         {"Right PGA Mux", "Differential", "Differential Mux"},
405 
406         /* Differential Mux */
407         {"Differential Mux", "Line 1", "LINPUT1"},
408         {"Differential Mux", "Line 1", "RINPUT1"},
409         {"Differential Mux", "Line 2", "LINPUT2"},
410         {"Differential Mux", "Line 2", "RINPUT2"},
411 
412         /* Left ADC Mux */
413         {"Left ADC Mux", "Stereo", "Left PGA Mux"},
414         {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
415         {"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
416 
417         /* Right ADC Mux */
418         {"Right ADC Mux", "Stereo", "Right PGA Mux"},
419         {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
420         {"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
421 
422         /* ADC */
423         {"Left ADC", NULL, "Left ADC Mux"},
424         {"Right ADC", NULL, "Right ADC Mux"},
425 };
426 
427 struct _coeff_div {
428         u32 mclk;
429         u32 rate;
430         u16 fs;
431         u8 sr:5;
432         u8 usb:1;
433 };
434 
435 /* codec hifi mclk clock divider coefficients */
436 static const struct _coeff_div coeff_div[] = {
437         /* 8k */
438         {12288000, 8000, 1536, 0x6, 0x0},
439         {11289600, 8000, 1408, 0x16, 0x0},
440         {18432000, 8000, 2304, 0x7, 0x0},
441         {16934400, 8000, 2112, 0x17, 0x0},
442         {12000000, 8000, 1500, 0x6, 0x1},
443 
444         /* 11.025k */
445         {11289600, 11025, 1024, 0x18, 0x0},
446         {16934400, 11025, 1536, 0x19, 0x0},
447         {12000000, 11025, 1088, 0x19, 0x1},
448 
449         /* 16k */
450         {12288000, 16000, 768, 0xa, 0x0},
451         {18432000, 16000, 1152, 0xb, 0x0},
452         {12000000, 16000, 750, 0xa, 0x1},
453 
454         /* 22.05k */
455         {11289600, 22050, 512, 0x1a, 0x0},
456         {16934400, 22050, 768, 0x1b, 0x0},
457         {12000000, 22050, 544, 0x1b, 0x1},
458 
459         /* 32k */
460         {12288000, 32000, 384, 0xc, 0x0},
461         {18432000, 32000, 576, 0xd, 0x0},
462         {12000000, 32000, 375, 0xa, 0x1},
463 
464         /* 44.1k */
465         {11289600, 44100, 256, 0x10, 0x0},
466         {16934400, 44100, 384, 0x11, 0x0},
467         {12000000, 44100, 272, 0x11, 0x1},
468 
469         /* 48k */
470         {12288000, 48000, 256, 0x0, 0x0},
471         {18432000, 48000, 384, 0x1, 0x0},
472         {12000000, 48000, 250, 0x0, 0x1},
473 
474         /* 88.2k */
475         {11289600, 88200, 128, 0x1e, 0x0},
476         {16934400, 88200, 192, 0x1f, 0x0},
477         {12000000, 88200, 136, 0x1f, 0x1},
478 
479         /* 96k */
480         {12288000, 96000, 128, 0xe, 0x0},
481         {18432000, 96000, 192, 0xf, 0x0},
482         {12000000, 96000, 125, 0xe, 0x1},
483 };
484 
485 static inline int get_coeff(int mclk, int rate)
486 {
487         int i;
488 
489         for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
490                 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
491                         return i;
492         }
493 
494         printk(KERN_ERR "wm8750: could not get coeff for mclk %d @ rate %d\n",
495                 mclk, rate);
496         return -EINVAL;
497 }
498 
499 static int wm8750_set_dai_sysclk(struct snd_soc_dai *codec_dai,
500                 int clk_id, unsigned int freq, int dir)
501 {
502         struct snd_soc_component *component = codec_dai->component;
503         struct wm8750_priv *wm8750 = snd_soc_component_get_drvdata(component);
504 
505         switch (freq) {
506         case 11289600:
507         case 12000000:
508         case 12288000:
509         case 16934400:
510         case 18432000:
511                 wm8750->sysclk = freq;
512                 return 0;
513         }
514         return -EINVAL;
515 }
516 
517 static int wm8750_set_dai_fmt(struct snd_soc_dai *codec_dai,
518                 unsigned int fmt)
519 {
520         struct snd_soc_component *component = codec_dai->component;
521         u16 iface = 0;
522 
523         /* set master/slave audio interface */
524         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
525         case SND_SOC_DAIFMT_CBM_CFM:
526                 iface = 0x0040;
527                 break;
528         case SND_SOC_DAIFMT_CBS_CFS:
529                 break;
530         default:
531                 return -EINVAL;
532         }
533 
534         /* interface format */
535         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
536         case SND_SOC_DAIFMT_I2S:
537                 iface |= 0x0002;
538                 break;
539         case SND_SOC_DAIFMT_RIGHT_J:
540                 break;
541         case SND_SOC_DAIFMT_LEFT_J:
542                 iface |= 0x0001;
543                 break;
544         case SND_SOC_DAIFMT_DSP_A:
545                 iface |= 0x0003;
546                 break;
547         case SND_SOC_DAIFMT_DSP_B:
548                 iface |= 0x0013;
549                 break;
550         default:
551                 return -EINVAL;
552         }
553 
554         /* clock inversion */
555         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
556         case SND_SOC_DAIFMT_NB_NF:
557                 break;
558         case SND_SOC_DAIFMT_IB_IF:
559                 iface |= 0x0090;
560                 break;
561         case SND_SOC_DAIFMT_IB_NF:
562                 iface |= 0x0080;
563                 break;
564         case SND_SOC_DAIFMT_NB_IF:
565                 iface |= 0x0010;
566                 break;
567         default:
568                 return -EINVAL;
569         }
570 
571         snd_soc_component_write(component, WM8750_IFACE, iface);
572         return 0;
573 }
574 
575 static int wm8750_pcm_hw_params(struct snd_pcm_substream *substream,
576                                 struct snd_pcm_hw_params *params,
577                                 struct snd_soc_dai *dai)
578 {
579         struct snd_soc_component *component = dai->component;
580         struct wm8750_priv *wm8750 = snd_soc_component_get_drvdata(component);
581         u16 iface = snd_soc_component_read32(component, WM8750_IFACE) & 0x1f3;
582         u16 srate = snd_soc_component_read32(component, WM8750_SRATE) & 0x1c0;
583         int coeff = get_coeff(wm8750->sysclk, params_rate(params));
584 
585         /* bit size */
586         switch (params_width(params)) {
587         case 16:
588                 break;
589         case 20:
590                 iface |= 0x0004;
591                 break;
592         case 24:
593                 iface |= 0x0008;
594                 break;
595         case 32:
596                 iface |= 0x000c;
597                 break;
598         }
599 
600         /* set iface & srate */
601         snd_soc_component_write(component, WM8750_IFACE, iface);
602         if (coeff >= 0)
603                 snd_soc_component_write(component, WM8750_SRATE, srate |
604                         (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
605 
606         return 0;
607 }
608 
609 static int wm8750_mute(struct snd_soc_dai *dai, int mute)
610 {
611         struct snd_soc_component *component = dai->component;
612         u16 mute_reg = snd_soc_component_read32(component, WM8750_ADCDAC) & 0xfff7;
613 
614         if (mute)
615                 snd_soc_component_write(component, WM8750_ADCDAC, mute_reg | 0x8);
616         else
617                 snd_soc_component_write(component, WM8750_ADCDAC, mute_reg);
618         return 0;
619 }
620 
621 static int wm8750_set_bias_level(struct snd_soc_component *component,
622                                  enum snd_soc_bias_level level)
623 {
624         u16 pwr_reg = snd_soc_component_read32(component, WM8750_PWR1) & 0xfe3e;
625 
626         switch (level) {
627         case SND_SOC_BIAS_ON:
628                 /* set vmid to 50k and unmute dac */
629                 snd_soc_component_write(component, WM8750_PWR1, pwr_reg | 0x00c0);
630                 break;
631         case SND_SOC_BIAS_PREPARE:
632                 break;
633         case SND_SOC_BIAS_STANDBY:
634                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
635                         snd_soc_component_cache_sync(component);
636 
637                         /* Set VMID to 5k */
638                         snd_soc_component_write(component, WM8750_PWR1, pwr_reg | 0x01c1);
639 
640                         /* ...and ramp */
641                         msleep(1000);
642                 }
643 
644                 /* mute dac and set vmid to 500k, enable VREF */
645                 snd_soc_component_write(component, WM8750_PWR1, pwr_reg | 0x0141);
646                 break;
647         case SND_SOC_BIAS_OFF:
648                 snd_soc_component_write(component, WM8750_PWR1, 0x0001);
649                 break;
650         }
651         return 0;
652 }
653 
654 #define WM8750_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
655         SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
656         SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
657 
658 #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
659         SNDRV_PCM_FMTBIT_S24_LE)
660 
661 static const struct snd_soc_dai_ops wm8750_dai_ops = {
662         .hw_params      = wm8750_pcm_hw_params,
663         .digital_mute   = wm8750_mute,
664         .set_fmt        = wm8750_set_dai_fmt,
665         .set_sysclk     = wm8750_set_dai_sysclk,
666 };
667 
668 static struct snd_soc_dai_driver wm8750_dai = {
669         .name = "wm8750-hifi",
670         .playback = {
671                 .stream_name = "Playback",
672                 .channels_min = 1,
673                 .channels_max = 2,
674                 .rates = WM8750_RATES,
675                 .formats = WM8750_FORMATS,},
676         .capture = {
677                 .stream_name = "Capture",
678                 .channels_min = 1,
679                 .channels_max = 2,
680                 .rates = WM8750_RATES,
681                 .formats = WM8750_FORMATS,},
682         .ops = &wm8750_dai_ops,
683 };
684 
685 static int wm8750_probe(struct snd_soc_component *component)
686 {
687         int ret;
688 
689         ret = wm8750_reset(component);
690         if (ret < 0) {
691                 printk(KERN_ERR "wm8750: failed to reset: %d\n", ret);
692                 return ret;
693         }
694 
695         /* set the update bits */
696         snd_soc_component_update_bits(component, WM8750_LDAC, 0x0100, 0x0100);
697         snd_soc_component_update_bits(component, WM8750_RDAC, 0x0100, 0x0100);
698         snd_soc_component_update_bits(component, WM8750_LOUT1V, 0x0100, 0x0100);
699         snd_soc_component_update_bits(component, WM8750_ROUT1V, 0x0100, 0x0100);
700         snd_soc_component_update_bits(component, WM8750_LOUT2V, 0x0100, 0x0100);
701         snd_soc_component_update_bits(component, WM8750_ROUT2V, 0x0100, 0x0100);
702         snd_soc_component_update_bits(component, WM8750_LINVOL, 0x0100, 0x0100);
703         snd_soc_component_update_bits(component, WM8750_RINVOL, 0x0100, 0x0100);
704 
705         return ret;
706 }
707 
708 static const struct snd_soc_component_driver soc_component_dev_wm8750 = {
709         .probe                  = wm8750_probe,
710         .set_bias_level         = wm8750_set_bias_level,
711         .controls               = wm8750_snd_controls,
712         .num_controls           = ARRAY_SIZE(wm8750_snd_controls),
713         .dapm_widgets           = wm8750_dapm_widgets,
714         .num_dapm_widgets       = ARRAY_SIZE(wm8750_dapm_widgets),
715         .dapm_routes            = wm8750_dapm_routes,
716         .num_dapm_routes        = ARRAY_SIZE(wm8750_dapm_routes),
717         .suspend_bias_off       = 1,
718         .idle_bias_on           = 1,
719         .use_pmdown_time        = 1,
720         .endianness             = 1,
721         .non_legacy_dai_naming  = 1,
722 };
723 
724 static const struct of_device_id wm8750_of_match[] = {
725         { .compatible = "wlf,wm8750", },
726         { .compatible = "wlf,wm8987", },
727         { }
728 };
729 MODULE_DEVICE_TABLE(of, wm8750_of_match);
730 
731 static const struct regmap_config wm8750_regmap = {
732         .reg_bits = 7,
733         .val_bits = 9,
734         .max_register = WM8750_MOUTV,
735 
736         .reg_defaults = wm8750_reg_defaults,
737         .num_reg_defaults = ARRAY_SIZE(wm8750_reg_defaults),
738         .cache_type = REGCACHE_RBTREE,
739 };
740 
741 #if defined(CONFIG_SPI_MASTER)
742 static int wm8750_spi_probe(struct spi_device *spi)
743 {
744         struct wm8750_priv *wm8750;
745         struct regmap *regmap;
746         int ret;
747 
748         wm8750 = devm_kzalloc(&spi->dev, sizeof(struct wm8750_priv),
749                               GFP_KERNEL);
750         if (wm8750 == NULL)
751                 return -ENOMEM;
752 
753         regmap = devm_regmap_init_spi(spi, &wm8750_regmap);
754         if (IS_ERR(regmap))
755                 return PTR_ERR(regmap);
756 
757         spi_set_drvdata(spi, wm8750);
758 
759         ret = devm_snd_soc_register_component(&spi->dev,
760                         &soc_component_dev_wm8750, &wm8750_dai, 1);
761         return ret;
762 }
763 
764 static const struct spi_device_id wm8750_spi_ids[] = {
765         { "wm8750", 0 },
766         { "wm8987", 0 },
767         { },
768 };
769 MODULE_DEVICE_TABLE(spi, wm8750_spi_ids);
770 
771 static struct spi_driver wm8750_spi_driver = {
772         .driver = {
773                 .name   = "wm8750",
774                 .of_match_table = wm8750_of_match,
775         },
776         .id_table       = wm8750_spi_ids,
777         .probe          = wm8750_spi_probe,
778 };
779 #endif /* CONFIG_SPI_MASTER */
780 
781 #if IS_ENABLED(CONFIG_I2C)
782 static int wm8750_i2c_probe(struct i2c_client *i2c,
783                             const struct i2c_device_id *id)
784 {
785         struct wm8750_priv *wm8750;
786         struct regmap *regmap;
787         int ret;
788 
789         wm8750 = devm_kzalloc(&i2c->dev, sizeof(struct wm8750_priv),
790                               GFP_KERNEL);
791         if (wm8750 == NULL)
792                 return -ENOMEM;
793 
794         i2c_set_clientdata(i2c, wm8750);
795 
796         regmap = devm_regmap_init_i2c(i2c, &wm8750_regmap);
797         if (IS_ERR(regmap))
798                 return PTR_ERR(regmap);
799 
800         ret = devm_snd_soc_register_component(&i2c->dev,
801                         &soc_component_dev_wm8750, &wm8750_dai, 1);
802         return ret;
803 }
804 
805 static const struct i2c_device_id wm8750_i2c_id[] = {
806         { "wm8750", 0 },
807         { "wm8987", 0 },
808         { }
809 };
810 MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id);
811 
812 static struct i2c_driver wm8750_i2c_driver = {
813         .driver = {
814                 .name = "wm8750",
815                 .of_match_table = wm8750_of_match,
816         },
817         .probe =    wm8750_i2c_probe,
818         .id_table = wm8750_i2c_id,
819 };
820 #endif
821 
822 static int __init wm8750_modinit(void)
823 {
824         int ret = 0;
825 #if IS_ENABLED(CONFIG_I2C)
826         ret = i2c_add_driver(&wm8750_i2c_driver);
827         if (ret != 0) {
828                 printk(KERN_ERR "Failed to register wm8750 I2C driver: %d\n",
829                        ret);
830         }
831 #endif
832 #if defined(CONFIG_SPI_MASTER)
833         ret = spi_register_driver(&wm8750_spi_driver);
834         if (ret != 0) {
835                 printk(KERN_ERR "Failed to register wm8750 SPI driver: %d\n",
836                        ret);
837         }
838 #endif
839         return ret;
840 }
841 module_init(wm8750_modinit);
842 
843 static void __exit wm8750_exit(void)
844 {
845 #if IS_ENABLED(CONFIG_I2C)
846         i2c_del_driver(&wm8750_i2c_driver);
847 #endif
848 #if defined(CONFIG_SPI_MASTER)
849         spi_unregister_driver(&wm8750_spi_driver);
850 #endif
851 }
852 module_exit(wm8750_exit);
853 
854 MODULE_DESCRIPTION("ASoC WM8750 driver");
855 MODULE_AUTHOR("Liam Girdwood");
856 MODULE_LICENSE("GPL");
857 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp