1 /*
2 * wm8983.c -- WM8983 ALSA SoC Audio driver
3 *
4 * Copyright 2011 Wolfson Microelectronics plc
5 *
6 * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
17 #include <linux/pm.h>
18 #include <linux/i2c.h>
19 #include <linux/spi/spi.h>
20 #include <linux/slab.h>
21 #include <sound/core.h>
22 #include <sound/pcm.h>
23 #include <sound/pcm_params.h>
24 #include <sound/soc.h>
25 #include <sound/initval.h>
26 #include <sound/tlv.h>
27
28 #include "wm8983.h"
29
30 static const u16 wm8983_reg_defs[WM8983_MAX_REGISTER + 1] = {
31 [0x00] = 0x0000, /* R0 - Software Reset */
32 [0x01] = 0x0000, /* R1 - Power management 1 */
33 [0x02] = 0x0000, /* R2 - Power management 2 */
34 [0x03] = 0x0000, /* R3 - Power management 3 */
35 [0x04] = 0x0050, /* R4 - Audio Interface */
36 [0x05] = 0x0000, /* R5 - Companding control */
37 [0x06] = 0x0140, /* R6 - Clock Gen control */
38 [0x07] = 0x0000, /* R7 - Additional control */
39 [0x08] = 0x0000, /* R8 - GPIO Control */
40 [0x09] = 0x0000, /* R9 - Jack Detect Control 1 */
41 [0x0A] = 0x0000, /* R10 - DAC Control */
42 [0x0B] = 0x00FF, /* R11 - Left DAC digital Vol */
43 [0x0C] = 0x00FF, /* R12 - Right DAC digital vol */
44 [0x0D] = 0x0000, /* R13 - Jack Detect Control 2 */
45 [0x0E] = 0x0100, /* R14 - ADC Control */
46 [0x0F] = 0x00FF, /* R15 - Left ADC Digital Vol */
47 [0x10] = 0x00FF, /* R16 - Right ADC Digital Vol */
48 [0x12] = 0x012C, /* R18 - EQ1 - low shelf */
49 [0x13] = 0x002C, /* R19 - EQ2 - peak 1 */
50 [0x14] = 0x002C, /* R20 - EQ3 - peak 2 */
51 [0x15] = 0x002C, /* R21 - EQ4 - peak 3 */
52 [0x16] = 0x002C, /* R22 - EQ5 - high shelf */
53 [0x18] = 0x0032, /* R24 - DAC Limiter 1 */
54 [0x19] = 0x0000, /* R25 - DAC Limiter 2 */
55 [0x1B] = 0x0000, /* R27 - Notch Filter 1 */
56 [0x1C] = 0x0000, /* R28 - Notch Filter 2 */
57 [0x1D] = 0x0000, /* R29 - Notch Filter 3 */
58 [0x1E] = 0x0000, /* R30 - Notch Filter 4 */
59 [0x20] = 0x0038, /* R32 - ALC control 1 */
60 [0x21] = 0x000B, /* R33 - ALC control 2 */
61 [0x22] = 0x0032, /* R34 - ALC control 3 */
62 [0x23] = 0x0000, /* R35 - Noise Gate */
63 [0x24] = 0x0008, /* R36 - PLL N */
64 [0x25] = 0x000C, /* R37 - PLL K 1 */
65 [0x26] = 0x0093, /* R38 - PLL K 2 */
66 [0x27] = 0x00E9, /* R39 - PLL K 3 */
67 [0x29] = 0x0000, /* R41 - 3D control */
68 [0x2A] = 0x0000, /* R42 - OUT4 to ADC */
69 [0x2B] = 0x0000, /* R43 - Beep control */
70 [0x2C] = 0x0033, /* R44 - Input ctrl */
71 [0x2D] = 0x0010, /* R45 - Left INP PGA gain ctrl */
72 [0x2E] = 0x0010, /* R46 - Right INP PGA gain ctrl */
73 [0x2F] = 0x0100, /* R47 - Left ADC BOOST ctrl */
74 [0x30] = 0x0100, /* R48 - Right ADC BOOST ctrl */
75 [0x31] = 0x0002, /* R49 - Output ctrl */
76 [0x32] = 0x0001, /* R50 - Left mixer ctrl */
77 [0x33] = 0x0001, /* R51 - Right mixer ctrl */
78 [0x34] = 0x0039, /* R52 - LOUT1 (HP) volume ctrl */
79 [0x35] = 0x0039, /* R53 - ROUT1 (HP) volume ctrl */
80 [0x36] = 0x0039, /* R54 - LOUT2 (SPK) volume ctrl */
81 [0x37] = 0x0039, /* R55 - ROUT2 (SPK) volume ctrl */
82 [0x38] = 0x0001, /* R56 - OUT3 mixer ctrl */
83 [0x39] = 0x0001, /* R57 - OUT4 (MONO) mix ctrl */
84 [0x3D] = 0x0000 /* R61 - BIAS CTRL */
85 };
86
87 static const struct wm8983_reg_access {
88 u16 read; /* Mask of readable bits */
89 u16 write; /* Mask of writable bits */
90 } wm8983_access_masks[WM8983_MAX_REGISTER + 1] = {
91 [0x00] = { 0x0000, 0x01FF }, /* R0 - Software Reset */
92 [0x01] = { 0x0000, 0x01FF }, /* R1 - Power management 1 */
93 [0x02] = { 0x0000, 0x01FF }, /* R2 - Power management 2 */
94 [0x03] = { 0x0000, 0x01EF }, /* R3 - Power management 3 */
95 [0x04] = { 0x0000, 0x01FF }, /* R4 - Audio Interface */
96 [0x05] = { 0x0000, 0x003F }, /* R5 - Companding control */
97 [0x06] = { 0x0000, 0x01FD }, /* R6 - Clock Gen control */
98 [0x07] = { 0x0000, 0x000F }, /* R7 - Additional control */
99 [0x08] = { 0x0000, 0x003F }, /* R8 - GPIO Control */
100 [0x09] = { 0x0000, 0x0070 }, /* R9 - Jack Detect Control 1 */
101 [0x0A] = { 0x0000, 0x004F }, /* R10 - DAC Control */
102 [0x0B] = { 0x0000, 0x01FF }, /* R11 - Left DAC digital Vol */
103 [0x0C] = { 0x0000, 0x01FF }, /* R12 - Right DAC digital vol */
104 [0x0D] = { 0x0000, 0x00FF }, /* R13 - Jack Detect Control 2 */
105 [0x0E] = { 0x0000, 0x01FB }, /* R14 - ADC Control */
106 [0x0F] = { 0x0000, 0x01FF }, /* R15 - Left ADC Digital Vol */
107 [0x10] = { 0x0000, 0x01FF }, /* R16 - Right ADC Digital Vol */
108 [0x12] = { 0x0000, 0x017F }, /* R18 - EQ1 - low shelf */
109 [0x13] = { 0x0000, 0x017F }, /* R19 - EQ2 - peak 1 */
110 [0x14] = { 0x0000, 0x017F }, /* R20 - EQ3 - peak 2 */
111 [0x15] = { 0x0000, 0x017F }, /* R21 - EQ4 - peak 3 */
112 [0x16] = { 0x0000, 0x007F }, /* R22 - EQ5 - high shelf */
113 [0x18] = { 0x0000, 0x01FF }, /* R24 - DAC Limiter 1 */
114 [0x19] = { 0x0000, 0x007F }, /* R25 - DAC Limiter 2 */
115 [0x1B] = { 0x0000, 0x01FF }, /* R27 - Notch Filter 1 */
116 [0x1C] = { 0x0000, 0x017F }, /* R28 - Notch Filter 2 */
117 [0x1D] = { 0x0000, 0x017F }, /* R29 - Notch Filter 3 */
118 [0x1E] = { 0x0000, 0x017F }, /* R30 - Notch Filter 4 */
119 [0x20] = { 0x0000, 0x01BF }, /* R32 - ALC control 1 */
120 [0x21] = { 0x0000, 0x00FF }, /* R33 - ALC control 2 */
121 [0x22] = { 0x0000, 0x01FF }, /* R34 - ALC control 3 */
122 [0x23] = { 0x0000, 0x000F }, /* R35 - Noise Gate */
123 [0x24] = { 0x0000, 0x001F }, /* R36 - PLL N */
124 [0x25] = { 0x0000, 0x003F }, /* R37 - PLL K 1 */
125 [0x26] = { 0x0000, 0x01FF }, /* R38 - PLL K 2 */
126 [0x27] = { 0x0000, 0x01FF }, /* R39 - PLL K 3 */
127 [0x29] = { 0x0000, 0x000F }, /* R41 - 3D control */
128 [0x2A] = { 0x0000, 0x01E7 }, /* R42 - OUT4 to ADC */
129 [0x2B] = { 0x0000, 0x01BF }, /* R43 - Beep control */
130 [0x2C] = { 0x0000, 0x0177 }, /* R44 - Input ctrl */
131 [0x2D] = { 0x0000, 0x01FF }, /* R45 - Left INP PGA gain ctrl */
132 [0x2E] = { 0x0000, 0x01FF }, /* R46 - Right INP PGA gain ctrl */
133 [0x2F] = { 0x0000, 0x0177 }, /* R47 - Left ADC BOOST ctrl */
134 [0x30] = { 0x0000, 0x0177 }, /* R48 - Right ADC BOOST ctrl */
135 [0x31] = { 0x0000, 0x007F }, /* R49 - Output ctrl */
136 [0x32] = { 0x0000, 0x01FF }, /* R50 - Left mixer ctrl */
137 [0x33] = { 0x0000, 0x01FF }, /* R51 - Right mixer ctrl */
138 [0x34] = { 0x0000, 0x01FF }, /* R52 - LOUT1 (HP) volume ctrl */
139 [0x35] = { 0x0000, 0x01FF }, /* R53 - ROUT1 (HP) volume ctrl */
140 [0x36] = { 0x0000, 0x01FF }, /* R54 - LOUT2 (SPK) volume ctrl */
141 [0x37] = { 0x0000, 0x01FF }, /* R55 - ROUT2 (SPK) volume ctrl */
142 [0x38] = { 0x0000, 0x004F }, /* R56 - OUT3 mixer ctrl */
143 [0x39] = { 0x0000, 0x00FF }, /* R57 - OUT4 (MONO) mix ctrl */
144 [0x3D] = { 0x0000, 0x0100 } /* R61 - BIAS CTRL */
145 };
146
147 /* vol/gain update regs */
148 static const int vol_update_regs[] = {
149 WM8983_LEFT_DAC_DIGITAL_VOL,
150 WM8983_RIGHT_DAC_DIGITAL_VOL,
151 WM8983_LEFT_ADC_DIGITAL_VOL,
152 WM8983_RIGHT_ADC_DIGITAL_VOL,
153 WM8983_LOUT1_HP_VOLUME_CTRL,
154 WM8983_ROUT1_HP_VOLUME_CTRL,
155 WM8983_LOUT2_SPK_VOLUME_CTRL,
156 WM8983_ROUT2_SPK_VOLUME_CTRL,
157 WM8983_LEFT_INP_PGA_GAIN_CTRL,
158 WM8983_RIGHT_INP_PGA_GAIN_CTRL
159 };
160
161 struct wm8983_priv {
162 enum snd_soc_control_type control_type;
163 u32 sysclk;
164 u32 bclk;
165 };
166
167 static const struct {
168 int div;
169 int ratio;
170 } fs_ratios[] = {
171 { 10, 128 },
172 { 15, 192 },
173 { 20, 256 },
174 { 30, 384 },
175 { 40, 512 },
176 { 60, 768 },
177 { 80, 1024 },
178 { 120, 1536 }
179 };
180
181 static const int srates[] = { 48000, 32000, 24000, 16000, 12000, 8000 };
182
183 static const int bclk_divs[] = {
184 1, 2, 4, 8, 16, 32
185 };
186
187 static int eqmode_get(struct snd_kcontrol *kcontrol,
188 struct snd_ctl_elem_value *ucontrol);
189 static int eqmode_put(struct snd_kcontrol *kcontrol,
190 struct snd_ctl_elem_value *ucontrol);
191
192 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
193 static const DECLARE_TLV_DB_SCALE(adc_tlv, -12700, 50, 1);
194 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
195 static const DECLARE_TLV_DB_SCALE(lim_thresh_tlv, -600, 100, 0);
196 static const DECLARE_TLV_DB_SCALE(lim_boost_tlv, 0, 100, 0);
197 static const DECLARE_TLV_DB_SCALE(alc_min_tlv, -1200, 600, 0);
198 static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -675, 600, 0);
199 static const DECLARE_TLV_DB_SCALE(alc_tar_tlv, -2250, 150, 0);
200 static const DECLARE_TLV_DB_SCALE(pga_vol_tlv, -1200, 75, 0);
201 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
202 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
203 static const DECLARE_TLV_DB_SCALE(aux_tlv, -1500, 300, 0);
204 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
205 static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0);
206
207 static const char *alc_sel_text[] = { "Off", "Right", "Left", "Stereo" };
208 static const SOC_ENUM_SINGLE_DECL(alc_sel, WM8983_ALC_CONTROL_1, 7,
209 alc_sel_text);
210
211 static const char *alc_mode_text[] = { "ALC", "Limiter" };
212 static const SOC_ENUM_SINGLE_DECL(alc_mode, WM8983_ALC_CONTROL_3, 8,
213 alc_mode_text);
214
215 static const char *filter_mode_text[] = { "Audio", "Application" };
216 static const SOC_ENUM_SINGLE_DECL(filter_mode, WM8983_ADC_CONTROL, 7,
217 filter_mode_text);
218
219 static const char *eq_bw_text[] = { "Narrow", "Wide" };
220 static const char *eqmode_text[] = { "Capture", "Playback" };
221 static const SOC_ENUM_SINGLE_EXT_DECL(eqmode, eqmode_text);
222
223 static const char *eq1_cutoff_text[] = {
224 "80Hz", "105Hz", "135Hz", "175Hz"
225 };
226 static const SOC_ENUM_SINGLE_DECL(eq1_cutoff, WM8983_EQ1_LOW_SHELF, 5,
227 eq1_cutoff_text);
228 static const char *eq2_cutoff_text[] = {
229 "230Hz", "300Hz", "385Hz", "500Hz"
230 };
231 static const SOC_ENUM_SINGLE_DECL(eq2_bw, WM8983_EQ2_PEAK_1, 8, eq_bw_text);
232 static const SOC_ENUM_SINGLE_DECL(eq2_cutoff, WM8983_EQ2_PEAK_1, 5,
233 eq2_cutoff_text);
234 static const char *eq3_cutoff_text[] = {
235 "650Hz", "850Hz", "1.1kHz", "1.4kHz"
236 };
237 static const SOC_ENUM_SINGLE_DECL(eq3_bw, WM8983_EQ3_PEAK_2, 8, eq_bw_text);
238 static const SOC_ENUM_SINGLE_DECL(eq3_cutoff, WM8983_EQ3_PEAK_2, 5,
239 eq3_cutoff_text);
240 static const char *eq4_cutoff_text[] = {
241 "1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz"
242 };
243 static const SOC_ENUM_SINGLE_DECL(eq4_bw, WM8983_EQ4_PEAK_3, 8, eq_bw_text);
244 static const SOC_ENUM_SINGLE_DECL(eq4_cutoff, WM8983_EQ4_PEAK_3, 5,
245 eq4_cutoff_text);
246 static const char *eq5_cutoff_text[] = {
247 "5.3kHz", "6.9kHz", "9kHz", "11.7kHz"
248 };
249 static const SOC_ENUM_SINGLE_DECL(eq5_cutoff, WM8983_EQ5_HIGH_SHELF, 5,
250 eq5_cutoff_text);
251
252 static const char *speaker_mode_text[] = { "Class A/B", "Class D" };
253 static const SOC_ENUM_SINGLE_DECL(speaker_mode, 0x17, 8, speaker_mode_text);
254
255 static const char *depth_3d_text[] = {
256 "Off",
257 "6.67%",
258 "13.3%",
259 "20%",
260 "26.7%",
261 "33.3%",
262 "40%",
263 "46.6%",
264 "53.3%",
265 "60%",
266 "66.7%",
267 "73.3%",
268 "80%",
269 "86.7%",
270 "93.3%",
271 "100%"
272 };
273 static const SOC_ENUM_SINGLE_DECL(depth_3d, WM8983_3D_CONTROL, 0,
274 depth_3d_text);
275
276 static const struct snd_kcontrol_new wm8983_snd_controls[] = {
277 SOC_SINGLE("Digital Loopback Switch", WM8983_COMPANDING_CONTROL,
278 0, 1, 0),
279
280 SOC_ENUM("ALC Capture Function", alc_sel),
281 SOC_SINGLE_TLV("ALC Capture Max Volume", WM8983_ALC_CONTROL_1,
282 3, 7, 0, alc_max_tlv),
283 SOC_SINGLE_TLV("ALC Capture Min Volume", WM8983_ALC_CONTROL_1,
284 0, 7, 0, alc_min_tlv),
285 SOC_SINGLE_TLV("ALC Capture Target Volume", WM8983_ALC_CONTROL_2,
286 0, 15, 0, alc_tar_tlv),
287 SOC_SINGLE("ALC Capture Attack", WM8983_ALC_CONTROL_3, 0, 10, 0),
288 SOC_SINGLE("ALC Capture Hold", WM8983_ALC_CONTROL_2, 4, 10, 0),
289 SOC_SINGLE("ALC Capture Decay", WM8983_ALC_CONTROL_3, 4, 10, 0),
290 SOC_ENUM("ALC Mode", alc_mode),
291 SOC_SINGLE("ALC Capture NG Switch", WM8983_NOISE_GATE,
292 3, 1, 0),
293 SOC_SINGLE("ALC Capture NG Threshold", WM8983_NOISE_GATE,
294 0, 7, 1),
295
296 SOC_DOUBLE_R_TLV("Capture Volume", WM8983_LEFT_ADC_DIGITAL_VOL,
297 WM8983_RIGHT_ADC_DIGITAL_VOL, 0, 255, 0, adc_tlv),
298 SOC_DOUBLE_R("Capture PGA ZC Switch", WM8983_LEFT_INP_PGA_GAIN_CTRL,
299 WM8983_RIGHT_INP_PGA_GAIN_CTRL, 7, 1, 0),
300 SOC_DOUBLE_R_TLV("Capture PGA Volume", WM8983_LEFT_INP_PGA_GAIN_CTRL,
301 WM8983_RIGHT_INP_PGA_GAIN_CTRL, 0, 63, 0, pga_vol_tlv),
302
303 SOC_DOUBLE_R_TLV("Capture PGA Boost Volume",
304 WM8983_LEFT_ADC_BOOST_CTRL, WM8983_RIGHT_ADC_BOOST_CTRL,
305 8, 1, 0, pga_boost_tlv),
306
307 SOC_DOUBLE("ADC Inversion Switch", WM8983_ADC_CONTROL, 0, 1, 1, 0),
308 SOC_SINGLE("ADC 128x Oversampling Switch", WM8983_ADC_CONTROL, 8, 1, 0),
309
310 SOC_DOUBLE_R_TLV("Playback Volume", WM8983_LEFT_DAC_DIGITAL_VOL,
311 WM8983_RIGHT_DAC_DIGITAL_VOL, 0, 255, 0, dac_tlv),
312
313 SOC_SINGLE("DAC Playback Limiter Switch", WM8983_DAC_LIMITER_1, 8, 1, 0),
314 SOC_SINGLE("DAC Playback Limiter Decay", WM8983_DAC_LIMITER_1, 4, 10, 0),
315 SOC_SINGLE("DAC Playback Limiter Attack", WM8983_DAC_LIMITER_1, 0, 11, 0),
316 SOC_SINGLE_TLV("DAC Playback Limiter Threshold", WM8983_DAC_LIMITER_2,
317 4, 7, 1, lim_thresh_tlv),
318 SOC_SINGLE_TLV("DAC Playback Limiter Boost Volume", WM8983_DAC_LIMITER_2,
319 0, 12, 0, lim_boost_tlv),
320 SOC_DOUBLE("DAC Inversion Switch", WM8983_DAC_CONTROL, 0, 1, 1, 0),
321 SOC_SINGLE("DAC Auto Mute Switch", WM8983_DAC_CONTROL, 2, 1, 0),
322 SOC_SINGLE("DAC 128x Oversampling Switch", WM8983_DAC_CONTROL, 3, 1, 0),
323
324 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8983_LOUT1_HP_VOLUME_CTRL,
325 WM8983_ROUT1_HP_VOLUME_CTRL, 0, 63, 0, out_tlv),
326 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8983_LOUT1_HP_VOLUME_CTRL,
327 WM8983_ROUT1_HP_VOLUME_CTRL, 7, 1, 0),
328 SOC_DOUBLE_R("Headphone Switch", WM8983_LOUT1_HP_VOLUME_CTRL,
329 WM8983_ROUT1_HP_VOLUME_CTRL, 6, 1, 1),
330
331 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8983_LOUT2_SPK_VOLUME_CTRL,
332 WM8983_ROUT2_SPK_VOLUME_CTRL, 0, 63, 0, out_tlv),
333 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8983_LOUT2_SPK_VOLUME_CTRL,
334 WM8983_ROUT2_SPK_VOLUME_CTRL, 7, 1, 0),
335 SOC_DOUBLE_R("Speaker Switch", WM8983_LOUT2_SPK_VOLUME_CTRL,
336 WM8983_ROUT2_SPK_VOLUME_CTRL, 6, 1, 1),
337
338 SOC_SINGLE("OUT3 Switch", WM8983_OUT3_MIXER_CTRL,
339 6, 1, 1),
340
341 SOC_SINGLE("OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
342 6, 1, 1),
343
344 SOC_SINGLE("High Pass Filter Switch", WM8983_ADC_CONTROL, 8, 1, 0),
345 SOC_ENUM("High Pass Filter Mode", filter_mode),
346 SOC_SINGLE("High Pass Filter Cutoff", WM8983_ADC_CONTROL, 4, 7, 0),
347
348 SOC_DOUBLE_R_TLV("Aux Bypass Volume",
349 WM8983_LEFT_MIXER_CTRL, WM8983_RIGHT_MIXER_CTRL, 6, 7, 0,
350 aux_tlv),
351
352 SOC_DOUBLE_R_TLV("Input PGA Bypass Volume",
353 WM8983_LEFT_MIXER_CTRL, WM8983_RIGHT_MIXER_CTRL, 2, 7, 0,
354 bypass_tlv),
355
356 SOC_ENUM_EXT("Equalizer Function", eqmode, eqmode_get, eqmode_put),
357 SOC_ENUM("EQ1 Cutoff", eq1_cutoff),
358 SOC_SINGLE_TLV("EQ1 Volume", WM8983_EQ1_LOW_SHELF, 0, 24, 1, eq_tlv),
359 SOC_ENUM("EQ2 Bandwith", eq2_bw),
360 SOC_ENUM("EQ2 Cutoff", eq2_cutoff),
361 SOC_SINGLE_TLV("EQ2 Volume", WM8983_EQ2_PEAK_1, 0, 24, 1, eq_tlv),
362 SOC_ENUM("EQ3 Bandwith", eq3_bw),
363 SOC_ENUM("EQ3 Cutoff", eq3_cutoff),
364 SOC_SINGLE_TLV("EQ3 Volume", WM8983_EQ3_PEAK_2, 0, 24, 1, eq_tlv),
365 SOC_ENUM("EQ4 Bandwith", eq4_bw),
366 SOC_ENUM("EQ4 Cutoff", eq4_cutoff),
367 SOC_SINGLE_TLV("EQ4 Volume", WM8983_EQ4_PEAK_3, 0, 24, 1, eq_tlv),
368 SOC_ENUM("EQ5 Cutoff", eq5_cutoff),
369 SOC_SINGLE_TLV("EQ5 Volume", WM8983_EQ5_HIGH_SHELF, 0, 24, 1, eq_tlv),
370
371 SOC_ENUM("3D Depth", depth_3d),
372
373 SOC_ENUM("Speaker Mode", speaker_mode)
374 };
375
376 static const struct snd_kcontrol_new left_out_mixer[] = {
377 SOC_DAPM_SINGLE("Line Switch", WM8983_LEFT_MIXER_CTRL, 1, 1, 0),
378 SOC_DAPM_SINGLE("Aux Switch", WM8983_LEFT_MIXER_CTRL, 5, 1, 0),
379 SOC_DAPM_SINGLE("PCM Switch", WM8983_LEFT_MIXER_CTRL, 0, 1, 0),
380 };
381
382 static const struct snd_kcontrol_new right_out_mixer[] = {
383 SOC_DAPM_SINGLE("Line Switch", WM8983_RIGHT_MIXER_CTRL, 1, 1, 0),
384 SOC_DAPM_SINGLE("Aux Switch", WM8983_RIGHT_MIXER_CTRL, 5, 1, 0),
385 SOC_DAPM_SINGLE("PCM Switch", WM8983_RIGHT_MIXER_CTRL, 0, 1, 0),
386 };
387
388 static const struct snd_kcontrol_new left_input_mixer[] = {
389 SOC_DAPM_SINGLE("L2 Switch", WM8983_INPUT_CTRL, 2, 1, 0),
390 SOC_DAPM_SINGLE("MicN Switch", WM8983_INPUT_CTRL, 1, 1, 0),
391 SOC_DAPM_SINGLE("MicP Switch", WM8983_INPUT_CTRL, 0, 1, 0),
392 };
393
394 static const struct snd_kcontrol_new right_input_mixer[] = {
395 SOC_DAPM_SINGLE("R2 Switch", WM8983_INPUT_CTRL, 6, 1, 0),
396 SOC_DAPM_SINGLE("MicN Switch", WM8983_INPUT_CTRL, 5, 1, 0),
397 SOC_DAPM_SINGLE("MicP Switch", WM8983_INPUT_CTRL, 4, 1, 0),
398 };
399
400 static const struct snd_kcontrol_new left_boost_mixer[] = {
401 SOC_DAPM_SINGLE_TLV("L2 Volume", WM8983_LEFT_ADC_BOOST_CTRL,
402 4, 7, 0, boost_tlv),
403 SOC_DAPM_SINGLE_TLV("AUXL Volume", WM8983_LEFT_ADC_BOOST_CTRL,
404 0, 7, 0, boost_tlv)
405 };
406
407 static const struct snd_kcontrol_new out3_mixer[] = {
408 SOC_DAPM_SINGLE("LMIX2OUT3 Switch", WM8983_OUT3_MIXER_CTRL,
409 1, 1, 0),
410 SOC_DAPM_SINGLE("LDAC2OUT3 Switch", WM8983_OUT3_MIXER_CTRL,
411 0, 1, 0),
412 };
413
414 static const struct snd_kcontrol_new out4_mixer[] = {
415 SOC_DAPM_SINGLE("LMIX2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
416 4, 1, 0),
417 SOC_DAPM_SINGLE("RMIX2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
418 1, 1, 0),
419 SOC_DAPM_SINGLE("LDAC2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
420 3, 1, 0),
421 SOC_DAPM_SINGLE("RDAC2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
422 0, 1, 0),
423 };
424
425 static const struct snd_kcontrol_new right_boost_mixer[] = {
426 SOC_DAPM_SINGLE_TLV("R2 Volume", WM8983_RIGHT_ADC_BOOST_CTRL,
427 4, 7, 0, boost_tlv),
428 SOC_DAPM_SINGLE_TLV("AUXR Volume", WM8983_RIGHT_ADC_BOOST_CTRL,
429 0, 7, 0, boost_tlv)
430 };
431
432 static const struct snd_soc_dapm_widget wm8983_dapm_widgets[] = {
433 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8983_POWER_MANAGEMENT_3,
434 0, 0),
435 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8983_POWER_MANAGEMENT_3,
436 1, 0),
437 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8983_POWER_MANAGEMENT_2,
438 0, 0),
439 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8983_POWER_MANAGEMENT_2,
440 1, 0),
441
442 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8983_POWER_MANAGEMENT_3,
443 2, 0, left_out_mixer, ARRAY_SIZE(left_out_mixer)),
444 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8983_POWER_MANAGEMENT_3,
445 3, 0, right_out_mixer, ARRAY_SIZE(right_out_mixer)),
446
447 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8983_POWER_MANAGEMENT_2,
448 2, 0, left_input_mixer, ARRAY_SIZE(left_input_mixer)),
449 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8983_POWER_MANAGEMENT_2,
450 3, 0, right_input_mixer, ARRAY_SIZE(right_input_mixer)),
451
452 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8983_POWER_MANAGEMENT_2,
453 4, 0, left_boost_mixer, ARRAY_SIZE(left_boost_mixer)),
454 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8983_POWER_MANAGEMENT_2,
455 5, 0, right_boost_mixer, ARRAY_SIZE(right_boost_mixer)),
456
457 SND_SOC_DAPM_MIXER("OUT3 Mixer", WM8983_POWER_MANAGEMENT_1,
458 6, 0, out3_mixer, ARRAY_SIZE(out3_mixer)),
459
460 SND_SOC_DAPM_MIXER("OUT4 Mixer", WM8983_POWER_MANAGEMENT_1,
461 7, 0, out4_mixer, ARRAY_SIZE(out4_mixer)),
462
463 SND_SOC_DAPM_PGA("Left Capture PGA", WM8983_LEFT_INP_PGA_GAIN_CTRL,
464 6, 1, NULL, 0),
465 SND_SOC_DAPM_PGA("Right Capture PGA", WM8983_RIGHT_INP_PGA_GAIN_CTRL,
466 6, 1, NULL, 0),
467
468 SND_SOC_DAPM_PGA("Left Headphone Out", WM8983_POWER_MANAGEMENT_2,
469 7, 0, NULL, 0),
470 SND_SOC_DAPM_PGA("Right Headphone Out", WM8983_POWER_MANAGEMENT_2,
471 8, 0, NULL, 0),
472
473 SND_SOC_DAPM_PGA("Left Speaker Out", WM8983_POWER_MANAGEMENT_3,
474 5, 0, NULL, 0),
475 SND_SOC_DAPM_PGA("Right Speaker Out", WM8983_POWER_MANAGEMENT_3,
476 6, 0, NULL, 0),
477
478 SND_SOC_DAPM_PGA("OUT3 Out", WM8983_POWER_MANAGEMENT_3,
479 7, 0, NULL, 0),
480
481 SND_SOC_DAPM_PGA("OUT4 Out", WM8983_POWER_MANAGEMENT_3,
482 8, 0, NULL, 0),
483
484 SND_SOC_DAPM_SUPPLY("Mic Bias", WM8983_POWER_MANAGEMENT_1, 4, 0,
485 NULL, 0),
486
487 SND_SOC_DAPM_INPUT("LIN"),
488 SND_SOC_DAPM_INPUT("LIP"),
489 SND_SOC_DAPM_INPUT("RIN"),
490 SND_SOC_DAPM_INPUT("RIP"),
491 SND_SOC_DAPM_INPUT("AUXL"),
492 SND_SOC_DAPM_INPUT("AUXR"),
493 SND_SOC_DAPM_INPUT("L2"),
494 SND_SOC_DAPM_INPUT("R2"),
495 SND_SOC_DAPM_OUTPUT("HPL"),
496 SND_SOC_DAPM_OUTPUT("HPR"),
497 SND_SOC_DAPM_OUTPUT("SPKL"),
498 SND_SOC_DAPM_OUTPUT("SPKR"),
499 SND_SOC_DAPM_OUTPUT("OUT3"),
500 SND_SOC_DAPM_OUTPUT("OUT4")
501 };
502
503 static const struct snd_soc_dapm_route wm8983_audio_map[] = {
504 { "OUT3 Mixer", "LMIX2OUT3 Switch", "Left Output Mixer" },
505 { "OUT3 Mixer", "LDAC2OUT3 Switch", "Left DAC" },
506
507 { "OUT3 Out", NULL, "OUT3 Mixer" },
508 { "OUT3", NULL, "OUT3 Out" },
509
510 { "OUT4 Mixer", "LMIX2OUT4 Switch", "Left Output Mixer" },
511 { "OUT4 Mixer", "RMIX2OUT4 Switch", "Right Output Mixer" },
512 { "OUT4 Mixer", "LDAC2OUT4 Switch", "Left DAC" },
513 { "OUT4 Mixer", "RDAC2OUT4 Switch", "Right DAC" },
514
515 { "OUT4 Out", NULL, "OUT4 Mixer" },
516 { "OUT4", NULL, "OUT4 Out" },
517
518 { "Right Output Mixer", "PCM Switch", "Right DAC" },
519 { "Right Output Mixer", "Aux Switch", "AUXR" },
520 { "Right Output Mixer", "Line Switch", "Right Boost Mixer" },
521
522 { "Left Output Mixer", "PCM Switch", "Left DAC" },
523 { "Left Output Mixer", "Aux Switch", "AUXL" },
524 { "Left Output Mixer", "Line Switch", "Left Boost Mixer" },
525
526 { "Right Headphone Out", NULL, "Right Output Mixer" },
527 { "HPR", NULL, "Right Headphone Out" },
528
529 { "Left Headphone Out", NULL, "Left Output Mixer" },
530 { "HPL", NULL, "Left Headphone Out" },
531
532 { "Right Speaker Out", NULL, "Right Output Mixer" },
533 { "SPKR", NULL, "Right Speaker Out" },
534
535 { "Left Speaker Out", NULL, "Left Output Mixer" },
536 { "SPKL", NULL, "Left Speaker Out" },
537
538 { "Right ADC", NULL, "Right Boost Mixer" },
539
540 { "Right Boost Mixer", "AUXR Volume", "AUXR" },
541 { "Right Boost Mixer", NULL, "Right Capture PGA" },
542 { "Right Boost Mixer", "R2 Volume", "R2" },
543
544 { "Left ADC", NULL, "Left Boost Mixer" },
545
546 { "Left Boost Mixer", "AUXL Volume", "AUXL" },
547 { "Left Boost Mixer", NULL, "Left Capture PGA" },
548 { "Left Boost Mixer", "L2 Volume", "L2" },
549
550 { "Right Capture PGA", NULL, "Right Input Mixer" },
551 { "Left Capture PGA", NULL, "Left Input Mixer" },
552
553 { "Right Input Mixer", "R2 Switch", "R2" },
554 { "Right Input Mixer", "MicN Switch", "RIN" },
555 { "Right Input Mixer", "MicP Switch", "RIP" },
556
557 { "Left Input Mixer", "L2 Switch", "L2" },
558 { "Left Input Mixer", "MicN Switch", "LIN" },
559 { "Left Input Mixer", "MicP Switch", "LIP" },
560 };
561
eqmode_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)562 static int eqmode_get(struct snd_kcontrol *kcontrol,
563 struct snd_ctl_elem_value *ucontrol)
564 {
565 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
566 unsigned int reg;
567
568 reg = snd_soc_read(codec, WM8983_EQ1_LOW_SHELF);
569 if (reg & WM8983_EQ3DMODE)
570 ucontrol->value.integer.value[0] = 1;
571 else
572 ucontrol->value.integer.value[0] = 0;
573
574 return 0;
575 }
576
eqmode_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)577 static int eqmode_put(struct snd_kcontrol *kcontrol,
578 struct snd_ctl_elem_value *ucontrol)
579 {
580 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
581 unsigned int regpwr2, regpwr3;
582 unsigned int reg_eq;
583
584 if (ucontrol->value.integer.value[0] != 0
585 && ucontrol->value.integer.value[0] != 1)
586 return -EINVAL;
587
588 reg_eq = snd_soc_read(codec, WM8983_EQ1_LOW_SHELF);
589 switch ((reg_eq & WM8983_EQ3DMODE) >> WM8983_EQ3DMODE_SHIFT) {
590 case 0:
591 if (!ucontrol->value.integer.value[0])
592 return 0;
593 break;
594 case 1:
595 if (ucontrol->value.integer.value[0])
596 return 0;
597 break;
598 }
599
600 regpwr2 = snd_soc_read(codec, WM8983_POWER_MANAGEMENT_2);
601 regpwr3 = snd_soc_read(codec, WM8983_POWER_MANAGEMENT_3);
602 /* disable the DACs and ADCs */
603 snd_soc_update_bits(codec, WM8983_POWER_MANAGEMENT_2,
604 WM8983_ADCENR_MASK | WM8983_ADCENL_MASK, 0);
605 snd_soc_update_bits(codec, WM8983_POWER_MANAGEMENT_3,
606 WM8983_DACENR_MASK | WM8983_DACENL_MASK, 0);
607 /* set the desired eqmode */
608 snd_soc_update_bits(codec, WM8983_EQ1_LOW_SHELF,
609 WM8983_EQ3DMODE_MASK,
610 ucontrol->value.integer.value[0]
611 << WM8983_EQ3DMODE_SHIFT);
612 /* restore DAC/ADC configuration */
613 snd_soc_write(codec, WM8983_POWER_MANAGEMENT_2, regpwr2);
614 snd_soc_write(codec, WM8983_POWER_MANAGEMENT_3, regpwr3);
615 return 0;
616 }
617
wm8983_readable(struct snd_soc_codec * codec,unsigned int reg)618 static int wm8983_readable(struct snd_soc_codec *codec, unsigned int reg)
619 {
620 if (reg > WM8983_MAX_REGISTER)
621 return 0;
622
623 return wm8983_access_masks[reg].read != 0;
624 }
625
wm8983_dac_mute(struct snd_soc_dai * dai,int mute)626 static int wm8983_dac_mute(struct snd_soc_dai *dai, int mute)
627 {
628 struct snd_soc_codec *codec = dai->codec;
629
630 return snd_soc_update_bits(codec, WM8983_DAC_CONTROL,
631 WM8983_SOFTMUTE_MASK,
632 !!mute << WM8983_SOFTMUTE_SHIFT);
633 }
634
wm8983_set_fmt(struct snd_soc_dai * dai,unsigned int fmt)635 static int wm8983_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
636 {
637 struct snd_soc_codec *codec = dai->codec;
638 u16 format, master, bcp, lrp;
639
640 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
641 case SND_SOC_DAIFMT_I2S:
642 format = 0x2;
643 break;
644 case SND_SOC_DAIFMT_RIGHT_J:
645 format = 0x0;
646 break;
647 case SND_SOC_DAIFMT_LEFT_J:
648 format = 0x1;
649 break;
650 case SND_SOC_DAIFMT_DSP_A:
651 case SND_SOC_DAIFMT_DSP_B:
652 format = 0x3;
653 break;
654 default:
655 dev_err(dai->dev, "Unknown dai format\n");
656 return -EINVAL;
657 }
658
659 snd_soc_update_bits(codec, WM8983_AUDIO_INTERFACE,
660 WM8983_FMT_MASK, format << WM8983_FMT_SHIFT);
661
662 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
663 case SND_SOC_DAIFMT_CBM_CFM:
664 master = 1;
665 break;
666 case SND_SOC_DAIFMT_CBS_CFS:
667 master = 0;
668 break;
669 default:
670 dev_err(dai->dev, "Unknown master/slave configuration\n");
671 return -EINVAL;
672 }
673
674 snd_soc_update_bits(codec, WM8983_CLOCK_GEN_CONTROL,
675 WM8983_MS_MASK, master << WM8983_MS_SHIFT);
676
677 /* FIXME: We don't currently support DSP A/B modes */
678 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
679 case SND_SOC_DAIFMT_DSP_A:
680 case SND_SOC_DAIFMT_DSP_B:
681 dev_err(dai->dev, "DSP A/B modes are not supported\n");
682 return -EINVAL;
683 default:
684 break;
685 }
686
687 bcp = lrp = 0;
688 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
689 case SND_SOC_DAIFMT_NB_NF:
690 break;
691 case SND_SOC_DAIFMT_IB_IF:
692 bcp = lrp = 1;
693 break;
694 case SND_SOC_DAIFMT_IB_NF:
695 bcp = 1;
696 break;
697 case SND_SOC_DAIFMT_NB_IF:
698 lrp = 1;
699 break;
700 default:
701 dev_err(dai->dev, "Unknown polarity configuration\n");
702 return -EINVAL;
703 }
704
705 snd_soc_update_bits(codec, WM8983_AUDIO_INTERFACE,
706 WM8983_LRCP_MASK, lrp << WM8983_LRCP_SHIFT);
707 snd_soc_update_bits(codec, WM8983_AUDIO_INTERFACE,
708 WM8983_BCP_MASK, bcp << WM8983_BCP_SHIFT);
709 return 0;
710 }
711
wm8983_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)712 static int wm8983_hw_params(struct snd_pcm_substream *substream,
713 struct snd_pcm_hw_params *params,
714 struct snd_soc_dai *dai)
715 {
716 int i;
717 struct snd_soc_codec *codec = dai->codec;
718 struct wm8983_priv *wm8983 = snd_soc_codec_get_drvdata(codec);
719 u16 blen, srate_idx;
720 u32 tmp;
721 int srate_best;
722 int ret;
723
724 ret = snd_soc_params_to_bclk(params);
725 if (ret < 0) {
726 dev_err(codec->dev, "Failed to convert params to bclk: %d\n", ret);
727 return ret;
728 }
729
730 wm8983->bclk = ret;
731
732 switch (params_format(params)) {
733 case SNDRV_PCM_FORMAT_S16_LE:
734 blen = 0x0;
735 break;
736 case SNDRV_PCM_FORMAT_S20_3LE:
737 blen = 0x1;
738 break;
739 case SNDRV_PCM_FORMAT_S24_LE:
740 blen = 0x2;
741 break;
742 case SNDRV_PCM_FORMAT_S32_LE:
743 blen = 0x3;
744 break;
745 default:
746 dev_err(dai->dev, "Unsupported word length %u\n",
747 params_format(params));
748 return -EINVAL;
749 }
750
751 snd_soc_update_bits(codec, WM8983_AUDIO_INTERFACE,
752 WM8983_WL_MASK, blen << WM8983_WL_SHIFT);
753
754 /*
755 * match to the nearest possible sample rate and rely
756 * on the array index to configure the SR register
757 */
758 srate_idx = 0;
759 srate_best = abs(srates[0] - params_rate(params));
760 for (i = 1; i < ARRAY_SIZE(srates); ++i) {
761 if (abs(srates[i] - params_rate(params)) >= srate_best)
762 continue;
763 srate_idx = i;
764 srate_best = abs(srates[i] - params_rate(params));
765 }
766
767 dev_dbg(dai->dev, "Selected SRATE = %d\n", srates[srate_idx]);
768 snd_soc_update_bits(codec, WM8983_ADDITIONAL_CONTROL,
769 WM8983_SR_MASK, srate_idx << WM8983_SR_SHIFT);
770
771 dev_dbg(dai->dev, "Target BCLK = %uHz\n", wm8983->bclk);
772 dev_dbg(dai->dev, "SYSCLK = %uHz\n", wm8983->sysclk);
773
774 for (i = 0; i < ARRAY_SIZE(fs_ratios); ++i) {
775 if (wm8983->sysclk / params_rate(params)
776 == fs_ratios[i].ratio)
777 break;
778 }
779
780 if (i == ARRAY_SIZE(fs_ratios)) {
781 dev_err(dai->dev, "Unable to configure MCLK ratio %u/%u\n",
782 wm8983->sysclk, params_rate(params));
783 return -EINVAL;
784 }
785
786 dev_dbg(dai->dev, "MCLK ratio = %dfs\n", fs_ratios[i].ratio);
787 snd_soc_update_bits(codec, WM8983_CLOCK_GEN_CONTROL,
788 WM8983_MCLKDIV_MASK, i << WM8983_MCLKDIV_SHIFT);
789
790 /* select the appropriate bclk divider */
791 tmp = (wm8983->sysclk / fs_ratios[i].div) * 10;
792 for (i = 0; i < ARRAY_SIZE(bclk_divs); ++i) {
793 if (wm8983->bclk == tmp / bclk_divs[i])
794 break;
795 }
796
797 if (i == ARRAY_SIZE(bclk_divs)) {
798 dev_err(dai->dev, "No matching BCLK divider found\n");
799 return -EINVAL;
800 }
801
802 dev_dbg(dai->dev, "BCLK div = %d\n", i);
803 snd_soc_update_bits(codec, WM8983_CLOCK_GEN_CONTROL,
804 WM8983_BCLKDIV_MASK, i << WM8983_BCLKDIV_SHIFT);
805
806 return 0;
807 }
808
809 struct pll_div {
810 u32 div2:1;
811 u32 n:4;
812 u32 k:24;
813 };
814
815 #define FIXED_PLL_SIZE ((1ULL << 24) * 10)
pll_factors(struct pll_div * pll_div,unsigned int target,unsigned int source)816 static int pll_factors(struct pll_div *pll_div, unsigned int target,
817 unsigned int source)
818 {
819 u64 Kpart;
820 unsigned long int K, Ndiv, Nmod;
821
822 pll_div->div2 = 0;
823 Ndiv = target / source;
824 if (Ndiv < 6) {
825 source >>= 1;
826 pll_div->div2 = 1;
827 Ndiv = target / source;
828 }
829
830 if (Ndiv < 6 || Ndiv > 12) {
831 printk(KERN_ERR "%s: WM8983 N value is not within"
832 " the recommended range: %lu\n", __func__, Ndiv);
833 return -EINVAL;
834 }
835 pll_div->n = Ndiv;
836
837 Nmod = target % source;
838 Kpart = FIXED_PLL_SIZE * (u64)Nmod;
839
840 do_div(Kpart, source);
841
842 K = Kpart & 0xffffffff;
843 if ((K % 10) >= 5)
844 K += 5;
845 K /= 10;
846 pll_div->k = K;
847 return 0;
848 }
849
wm8983_set_pll(struct snd_soc_dai * dai,int pll_id,int source,unsigned int freq_in,unsigned int freq_out)850 static int wm8983_set_pll(struct snd_soc_dai *dai, int pll_id,
851 int source, unsigned int freq_in,
852 unsigned int freq_out)
853 {
854 int ret;
855 struct snd_soc_codec *codec;
856 struct pll_div pll_div;
857
858 codec = dai->codec;
859 if (freq_in && freq_out) {
860 ret = pll_factors(&pll_div, freq_out * 4 * 2, freq_in);
861 if (ret)
862 return ret;
863 }
864
865 /* disable the PLL before re-programming it */
866 snd_soc_update_bits(codec, WM8983_POWER_MANAGEMENT_1,
867 WM8983_PLLEN_MASK, 0);
868
869 if (!freq_in || !freq_out)
870 return 0;
871
872 /* set PLLN and PRESCALE */
873 snd_soc_write(codec, WM8983_PLL_N,
874 (pll_div.div2 << WM8983_PLL_PRESCALE_SHIFT)
875 | pll_div.n);
876 /* set PLLK */
877 snd_soc_write(codec, WM8983_PLL_K_3, pll_div.k & 0x1ff);
878 snd_soc_write(codec, WM8983_PLL_K_2, (pll_div.k >> 9) & 0x1ff);
879 snd_soc_write(codec, WM8983_PLL_K_1, (pll_div.k >> 18));
880 /* enable the PLL */
881 snd_soc_update_bits(codec, WM8983_POWER_MANAGEMENT_1,
882 WM8983_PLLEN_MASK, WM8983_PLLEN);
883 return 0;
884 }
885
wm8983_set_sysclk(struct snd_soc_dai * dai,int clk_id,unsigned int freq,int dir)886 static int wm8983_set_sysclk(struct snd_soc_dai *dai,
887 int clk_id, unsigned int freq, int dir)
888 {
889 struct snd_soc_codec *codec = dai->codec;
890 struct wm8983_priv *wm8983 = snd_soc_codec_get_drvdata(codec);
891
892 switch (clk_id) {
893 case WM8983_CLKSRC_MCLK:
894 snd_soc_update_bits(codec, WM8983_CLOCK_GEN_CONTROL,
895 WM8983_CLKSEL_MASK, 0);
896 break;
897 case WM8983_CLKSRC_PLL:
898 snd_soc_update_bits(codec, WM8983_CLOCK_GEN_CONTROL,
899 WM8983_CLKSEL_MASK, WM8983_CLKSEL);
900 break;
901 default:
902 dev_err(dai->dev, "Unknown clock source: %d\n", clk_id);
903 return -EINVAL;
904 }
905
906 wm8983->sysclk = freq;
907 return 0;
908 }
909
wm8983_set_bias_level(struct snd_soc_codec * codec,enum snd_soc_bias_level level)910 static int wm8983_set_bias_level(struct snd_soc_codec *codec,
911 enum snd_soc_bias_level level)
912 {
913 int ret;
914
915 switch (level) {
916 case SND_SOC_BIAS_ON:
917 case SND_SOC_BIAS_PREPARE:
918 /* VMID at 100k */
919 snd_soc_update_bits(codec, WM8983_POWER_MANAGEMENT_1,
920 WM8983_VMIDSEL_MASK,
921 1 << WM8983_VMIDSEL_SHIFT);
922 break;
923 case SND_SOC_BIAS_STANDBY:
924 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
925 ret = snd_soc_cache_sync(codec);
926 if (ret < 0) {
927 dev_err(codec->dev, "Failed to sync cache: %d\n", ret);
928 return ret;
929 }
930 /* enable anti-pop features */
931 snd_soc_update_bits(codec, WM8983_OUT4_TO_ADC,
932 WM8983_POBCTRL_MASK | WM8983_DELEN_MASK,
933 WM8983_POBCTRL | WM8983_DELEN);
934 /* enable thermal shutdown */
935 snd_soc_update_bits(codec, WM8983_OUTPUT_CTRL,
936 WM8983_TSDEN_MASK, WM8983_TSDEN);
937 /* enable BIASEN */
938 snd_soc_update_bits(codec, WM8983_POWER_MANAGEMENT_1,
939 WM8983_BIASEN_MASK, WM8983_BIASEN);
940 /* VMID at 100k */
941 snd_soc_update_bits(codec, WM8983_POWER_MANAGEMENT_1,
942 WM8983_VMIDSEL_MASK,
943 1 << WM8983_VMIDSEL_SHIFT);
944 msleep(250);
945 /* disable anti-pop features */
946 snd_soc_update_bits(codec, WM8983_OUT4_TO_ADC,
947 WM8983_POBCTRL_MASK |
948 WM8983_DELEN_MASK, 0);
949 }
950
951 /* VMID at 500k */
952 snd_soc_update_bits(codec, WM8983_POWER_MANAGEMENT_1,
953 WM8983_VMIDSEL_MASK,
954 2 << WM8983_VMIDSEL_SHIFT);
955 break;
956 case SND_SOC_BIAS_OFF:
957 /* disable thermal shutdown */
958 snd_soc_update_bits(codec, WM8983_OUTPUT_CTRL,
959 WM8983_TSDEN_MASK, 0);
960 /* disable VMIDSEL and BIASEN */
961 snd_soc_update_bits(codec, WM8983_POWER_MANAGEMENT_1,
962 WM8983_VMIDSEL_MASK | WM8983_BIASEN_MASK,
963 0);
964 /* wait for VMID to discharge */
965 msleep(100);
966 snd_soc_write(codec, WM8983_POWER_MANAGEMENT_1, 0);
967 snd_soc_write(codec, WM8983_POWER_MANAGEMENT_2, 0);
968 snd_soc_write(codec, WM8983_POWER_MANAGEMENT_3, 0);
969 break;
970 }
971
972 codec->dapm.bias_level = level;
973 return 0;
974 }
975
976 #ifdef CONFIG_PM
wm8983_suspend(struct snd_soc_codec * codec)977 static int wm8983_suspend(struct snd_soc_codec *codec)
978 {
979 wm8983_set_bias_level(codec, SND_SOC_BIAS_OFF);
980 return 0;
981 }
982
wm8983_resume(struct snd_soc_codec * codec)983 static int wm8983_resume(struct snd_soc_codec *codec)
984 {
985 wm8983_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
986 return 0;
987 }
988 #else
989 #define wm8983_suspend NULL
990 #define wm8983_resume NULL
991 #endif
992
wm8983_remove(struct snd_soc_codec * codec)993 static int wm8983_remove(struct snd_soc_codec *codec)
994 {
995 wm8983_set_bias_level(codec, SND_SOC_BIAS_OFF);
996 return 0;
997 }
998
wm8983_probe(struct snd_soc_codec * codec)999 static int wm8983_probe(struct snd_soc_codec *codec)
1000 {
1001 int ret;
1002 struct wm8983_priv *wm8983 = snd_soc_codec_get_drvdata(codec);
1003 int i;
1004
1005 ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8983->control_type);
1006 if (ret < 0) {
1007 dev_err(codec->dev, "Failed to set cache i/o: %d\n", ret);
1008 return ret;
1009 }
1010
1011 ret = snd_soc_write(codec, WM8983_SOFTWARE_RESET, 0);
1012 if (ret < 0) {
1013 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1014 return ret;
1015 }
1016
1017 /* set the vol/gain update bits */
1018 for (i = 0; i < ARRAY_SIZE(vol_update_regs); ++i)
1019 snd_soc_update_bits(codec, vol_update_regs[i],
1020 0x100, 0x100);
1021
1022 /* mute all outputs and set PGAs to minimum gain */
1023 for (i = WM8983_LOUT1_HP_VOLUME_CTRL;
1024 i <= WM8983_OUT4_MONO_MIX_CTRL; ++i)
1025 snd_soc_update_bits(codec, i, 0x40, 0x40);
1026
1027 /* enable soft mute */
1028 snd_soc_update_bits(codec, WM8983_DAC_CONTROL,
1029 WM8983_SOFTMUTE_MASK,
1030 WM8983_SOFTMUTE);
1031
1032 /* enable BIASCUT */
1033 snd_soc_update_bits(codec, WM8983_BIAS_CTRL,
1034 WM8983_BIASCUT, WM8983_BIASCUT);
1035 return 0;
1036 }
1037
1038 static const struct snd_soc_dai_ops wm8983_dai_ops = {
1039 .digital_mute = wm8983_dac_mute,
1040 .hw_params = wm8983_hw_params,
1041 .set_fmt = wm8983_set_fmt,
1042 .set_sysclk = wm8983_set_sysclk,
1043 .set_pll = wm8983_set_pll
1044 };
1045
1046 #define WM8983_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1047 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1048
1049 static struct snd_soc_dai_driver wm8983_dai = {
1050 .name = "wm8983-hifi",
1051 .playback = {
1052 .stream_name = "Playback",
1053 .channels_min = 2,
1054 .channels_max = 2,
1055 .rates = SNDRV_PCM_RATE_8000_48000,
1056 .formats = WM8983_FORMATS,
1057 },
1058 .capture = {
1059 .stream_name = "Capture",
1060 .channels_min = 2,
1061 .channels_max = 2,
1062 .rates = SNDRV_PCM_RATE_8000_48000,
1063 .formats = WM8983_FORMATS,
1064 },
1065 .ops = &wm8983_dai_ops,
1066 .symmetric_rates = 1
1067 };
1068
1069 static struct snd_soc_codec_driver soc_codec_dev_wm8983 = {
1070 .probe = wm8983_probe,
1071 .remove = wm8983_remove,
1072 .suspend = wm8983_suspend,
1073 .resume = wm8983_resume,
1074 .set_bias_level = wm8983_set_bias_level,
1075 .reg_cache_size = ARRAY_SIZE(wm8983_reg_defs),
1076 .reg_word_size = sizeof(u16),
1077 .reg_cache_default = wm8983_reg_defs,
1078 .controls = wm8983_snd_controls,
1079 .num_controls = ARRAY_SIZE(wm8983_snd_controls),
1080 .dapm_widgets = wm8983_dapm_widgets,
1081 .num_dapm_widgets = ARRAY_SIZE(wm8983_dapm_widgets),
1082 .dapm_routes = wm8983_audio_map,
1083 .num_dapm_routes = ARRAY_SIZE(wm8983_audio_map),
1084 .readable_register = wm8983_readable
1085 };
1086
1087 #if defined(CONFIG_SPI_MASTER)
wm8983_spi_probe(struct spi_device * spi)1088 static int __devinit wm8983_spi_probe(struct spi_device *spi)
1089 {
1090 struct wm8983_priv *wm8983;
1091 int ret;
1092
1093 wm8983 = kzalloc(sizeof *wm8983, GFP_KERNEL);
1094 if (!wm8983)
1095 return -ENOMEM;
1096
1097 wm8983->control_type = SND_SOC_SPI;
1098 spi_set_drvdata(spi, wm8983);
1099
1100 ret = snd_soc_register_codec(&spi->dev,
1101 &soc_codec_dev_wm8983, &wm8983_dai, 1);
1102 if (ret < 0)
1103 kfree(wm8983);
1104 return ret;
1105 }
1106
wm8983_spi_remove(struct spi_device * spi)1107 static int __devexit wm8983_spi_remove(struct spi_device *spi)
1108 {
1109 snd_soc_unregister_codec(&spi->dev);
1110 kfree(spi_get_drvdata(spi));
1111 return 0;
1112 }
1113
1114 static struct spi_driver wm8983_spi_driver = {
1115 .driver = {
1116 .name = "wm8983",
1117 .owner = THIS_MODULE,
1118 },
1119 .probe = wm8983_spi_probe,
1120 .remove = __devexit_p(wm8983_spi_remove)
1121 };
1122 #endif
1123
1124 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
wm8983_i2c_probe(struct i2c_client * i2c,const struct i2c_device_id * id)1125 static __devinit int wm8983_i2c_probe(struct i2c_client *i2c,
1126 const struct i2c_device_id *id)
1127 {
1128 struct wm8983_priv *wm8983;
1129 int ret;
1130
1131 wm8983 = kzalloc(sizeof *wm8983, GFP_KERNEL);
1132 if (!wm8983)
1133 return -ENOMEM;
1134
1135 wm8983->control_type = SND_SOC_I2C;
1136 i2c_set_clientdata(i2c, wm8983);
1137
1138 ret = snd_soc_register_codec(&i2c->dev,
1139 &soc_codec_dev_wm8983, &wm8983_dai, 1);
1140 if (ret < 0)
1141 kfree(wm8983);
1142 return ret;
1143 }
1144
wm8983_i2c_remove(struct i2c_client * client)1145 static __devexit int wm8983_i2c_remove(struct i2c_client *client)
1146 {
1147 snd_soc_unregister_codec(&client->dev);
1148 kfree(i2c_get_clientdata(client));
1149 return 0;
1150 }
1151
1152 static const struct i2c_device_id wm8983_i2c_id[] = {
1153 { "wm8983", 0 },
1154 { }
1155 };
1156 MODULE_DEVICE_TABLE(i2c, wm8983_i2c_id);
1157
1158 static struct i2c_driver wm8983_i2c_driver = {
1159 .driver = {
1160 .name = "wm8983",
1161 .owner = THIS_MODULE,
1162 },
1163 .probe = wm8983_i2c_probe,
1164 .remove = __devexit_p(wm8983_i2c_remove),
1165 .id_table = wm8983_i2c_id
1166 };
1167 #endif
1168
wm8983_modinit(void)1169 static int __init wm8983_modinit(void)
1170 {
1171 int ret = 0;
1172
1173 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1174 ret = i2c_add_driver(&wm8983_i2c_driver);
1175 if (ret) {
1176 printk(KERN_ERR "Failed to register wm8983 I2C driver: %d\n",
1177 ret);
1178 }
1179 #endif
1180 #if defined(CONFIG_SPI_MASTER)
1181 ret = spi_register_driver(&wm8983_spi_driver);
1182 if (ret != 0) {
1183 printk(KERN_ERR "Failed to register wm8983 SPI driver: %d\n",
1184 ret);
1185 }
1186 #endif
1187 return ret;
1188 }
1189 module_init(wm8983_modinit);
1190
wm8983_exit(void)1191 static void __exit wm8983_exit(void)
1192 {
1193 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1194 i2c_del_driver(&wm8983_i2c_driver);
1195 #endif
1196 #if defined(CONFIG_SPI_MASTER)
1197 spi_unregister_driver(&wm8983_spi_driver);
1198 #endif
1199 }
1200 module_exit(wm8983_exit);
1201
1202 MODULE_DESCRIPTION("ASoC WM8983 driver");
1203 MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
1204 MODULE_LICENSE("GPL");
1205