Commit | Line | Data |
---|---|---|
0a1bf553 MB |
1 | /* |
2 | * wm8974.c -- WM8974 ALSA Soc Audio driver | |
3 | * | |
8b83a193 | 4 | * Copyright 2006-2009 Wolfson Microelectronics PLC. |
0a1bf553 | 5 | * |
4fcbbb67 | 6 | * Author: Liam Girdwood <linux@wolfsonmicro.com> |
0a1bf553 MB |
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> | |
0a1bf553 MB |
15 | #include <linux/kernel.h> |
16 | #include <linux/init.h> | |
17 | #include <linux/delay.h> | |
18 | #include <linux/pm.h> | |
19 | #include <linux/i2c.h> | |
20 | #include <linux/platform_device.h> | |
5a0e3ad6 | 21 | #include <linux/slab.h> |
0a1bf553 MB |
22 | #include <sound/core.h> |
23 | #include <sound/pcm.h> | |
24 | #include <sound/pcm_params.h> | |
25 | #include <sound/soc.h> | |
0a1bf553 | 26 | #include <sound/initval.h> |
a5f8d2f1 | 27 | #include <sound/tlv.h> |
0a1bf553 MB |
28 | |
29 | #include "wm8974.h" | |
30 | ||
0a1bf553 | 31 | static const u16 wm8974_reg[WM8974_CACHEREGNUM] = { |
1a55b3f6 MB |
32 | 0x0000, 0x0000, 0x0000, 0x0000, |
33 | 0x0050, 0x0000, 0x0140, 0x0000, | |
34 | 0x0000, 0x0000, 0x0000, 0x00ff, | |
35 | 0x0000, 0x0000, 0x0100, 0x00ff, | |
36 | 0x0000, 0x0000, 0x012c, 0x002c, | |
37 | 0x002c, 0x002c, 0x002c, 0x0000, | |
38 | 0x0032, 0x0000, 0x0000, 0x0000, | |
39 | 0x0000, 0x0000, 0x0000, 0x0000, | |
40 | 0x0038, 0x000b, 0x0032, 0x0000, | |
41 | 0x0008, 0x000c, 0x0093, 0x00e9, | |
42 | 0x0000, 0x0000, 0x0000, 0x0000, | |
43 | 0x0003, 0x0010, 0x0000, 0x0000, | |
44 | 0x0000, 0x0002, 0x0000, 0x0000, | |
45 | 0x0000, 0x0000, 0x0039, 0x0000, | |
46 | 0x0000, | |
0a1bf553 MB |
47 | }; |
48 | ||
df1ef7a3 | 49 | #define WM8974_POWER1_BIASEN 0x08 |
48c03ce7 | 50 | #define WM8974_POWER1_BUFIOEN 0x04 |
df1ef7a3 | 51 | |
4fcbbb67 | 52 | struct wm8974_priv { |
f0fba2ad | 53 | enum snd_soc_control_type control_type; |
4fcbbb67 MB |
54 | }; |
55 | ||
1e97f50b | 56 | #define wm8974_reset(c) snd_soc_write(c, WM8974_RESET, 0) |
0a1bf553 MB |
57 | |
58 | static const char *wm8974_companding[] = {"Off", "NC", "u-law", "A-law" }; | |
59 | static const char *wm8974_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz" }; | |
60 | static const char *wm8974_eqmode[] = {"Capture", "Playback" }; | |
61 | static const char *wm8974_bw[] = {"Narrow", "Wide" }; | |
62 | static const char *wm8974_eq1[] = {"80Hz", "105Hz", "135Hz", "175Hz" }; | |
63 | static const char *wm8974_eq2[] = {"230Hz", "300Hz", "385Hz", "500Hz" }; | |
64 | static const char *wm8974_eq3[] = {"650Hz", "850Hz", "1.1kHz", "1.4kHz" }; | |
65 | static const char *wm8974_eq4[] = {"1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz" }; | |
66 | static const char *wm8974_eq5[] = {"5.3kHz", "6.9kHz", "9kHz", "11.7kHz" }; | |
67 | static const char *wm8974_alc[] = {"ALC", "Limiter" }; | |
68 | ||
69 | static const struct soc_enum wm8974_enum[] = { | |
70 | SOC_ENUM_SINGLE(WM8974_COMP, 1, 4, wm8974_companding), /* adc */ | |
71 | SOC_ENUM_SINGLE(WM8974_COMP, 3, 4, wm8974_companding), /* dac */ | |
72 | SOC_ENUM_SINGLE(WM8974_DAC, 4, 4, wm8974_deemp), | |
73 | SOC_ENUM_SINGLE(WM8974_EQ1, 8, 2, wm8974_eqmode), | |
74 | ||
75 | SOC_ENUM_SINGLE(WM8974_EQ1, 5, 4, wm8974_eq1), | |
76 | SOC_ENUM_SINGLE(WM8974_EQ2, 8, 2, wm8974_bw), | |
77 | SOC_ENUM_SINGLE(WM8974_EQ2, 5, 4, wm8974_eq2), | |
78 | SOC_ENUM_SINGLE(WM8974_EQ3, 8, 2, wm8974_bw), | |
79 | ||
80 | SOC_ENUM_SINGLE(WM8974_EQ3, 5, 4, wm8974_eq3), | |
81 | SOC_ENUM_SINGLE(WM8974_EQ4, 8, 2, wm8974_bw), | |
82 | SOC_ENUM_SINGLE(WM8974_EQ4, 5, 4, wm8974_eq4), | |
83 | SOC_ENUM_SINGLE(WM8974_EQ5, 8, 2, wm8974_bw), | |
84 | ||
85 | SOC_ENUM_SINGLE(WM8974_EQ5, 5, 4, wm8974_eq5), | |
86 | SOC_ENUM_SINGLE(WM8974_ALC3, 8, 2, wm8974_alc), | |
87 | }; | |
88 | ||
8a123ee2 MB |
89 | static const char *wm8974_auxmode_text[] = { "Buffer", "Mixer" }; |
90 | ||
91 | static const struct soc_enum wm8974_auxmode = | |
92 | SOC_ENUM_SINGLE(WM8974_INPUT, 3, 2, wm8974_auxmode_text); | |
93 | ||
a5f8d2f1 MB |
94 | static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1); |
95 | static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); | |
96 | static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0); | |
97 | static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0); | |
98 | ||
0a1bf553 MB |
99 | static const struct snd_kcontrol_new wm8974_snd_controls[] = { |
100 | ||
101 | SOC_SINGLE("Digital Loopback Switch", WM8974_COMP, 0, 1, 0), | |
102 | ||
103 | SOC_ENUM("DAC Companding", wm8974_enum[1]), | |
104 | SOC_ENUM("ADC Companding", wm8974_enum[0]), | |
105 | ||
106 | SOC_ENUM("Playback De-emphasis", wm8974_enum[2]), | |
107 | SOC_SINGLE("DAC Inversion Switch", WM8974_DAC, 0, 1, 0), | |
108 | ||
a5f8d2f1 | 109 | SOC_SINGLE_TLV("PCM Volume", WM8974_DACVOL, 0, 255, 0, digital_tlv), |
0a1bf553 MB |
110 | |
111 | SOC_SINGLE("High Pass Filter Switch", WM8974_ADC, 8, 1, 0), | |
112 | SOC_SINGLE("High Pass Cut Off", WM8974_ADC, 4, 7, 0), | |
25cbf465 | 113 | SOC_SINGLE("ADC Inversion Switch", WM8974_ADC, 0, 1, 0), |
0a1bf553 | 114 | |
a5f8d2f1 | 115 | SOC_SINGLE_TLV("Capture Volume", WM8974_ADCVOL, 0, 255, 0, digital_tlv), |
0a1bf553 MB |
116 | |
117 | SOC_ENUM("Equaliser Function", wm8974_enum[3]), | |
118 | SOC_ENUM("EQ1 Cut Off", wm8974_enum[4]), | |
a5f8d2f1 | 119 | SOC_SINGLE_TLV("EQ1 Volume", WM8974_EQ1, 0, 24, 1, eq_tlv), |
0a1bf553 MB |
120 | |
121 | SOC_ENUM("Equaliser EQ2 Bandwith", wm8974_enum[5]), | |
122 | SOC_ENUM("EQ2 Cut Off", wm8974_enum[6]), | |
a5f8d2f1 | 123 | SOC_SINGLE_TLV("EQ2 Volume", WM8974_EQ2, 0, 24, 1, eq_tlv), |
0a1bf553 MB |
124 | |
125 | SOC_ENUM("Equaliser EQ3 Bandwith", wm8974_enum[7]), | |
126 | SOC_ENUM("EQ3 Cut Off", wm8974_enum[8]), | |
a5f8d2f1 | 127 | SOC_SINGLE_TLV("EQ3 Volume", WM8974_EQ3, 0, 24, 1, eq_tlv), |
0a1bf553 MB |
128 | |
129 | SOC_ENUM("Equaliser EQ4 Bandwith", wm8974_enum[9]), | |
130 | SOC_ENUM("EQ4 Cut Off", wm8974_enum[10]), | |
a5f8d2f1 | 131 | SOC_SINGLE_TLV("EQ4 Volume", WM8974_EQ4, 0, 24, 1, eq_tlv), |
0a1bf553 MB |
132 | |
133 | SOC_ENUM("Equaliser EQ5 Bandwith", wm8974_enum[11]), | |
134 | SOC_ENUM("EQ5 Cut Off", wm8974_enum[12]), | |
a5f8d2f1 | 135 | SOC_SINGLE_TLV("EQ5 Volume", WM8974_EQ5, 0, 24, 1, eq_tlv), |
0a1bf553 MB |
136 | |
137 | SOC_SINGLE("DAC Playback Limiter Switch", WM8974_DACLIM1, 8, 1, 0), | |
138 | SOC_SINGLE("DAC Playback Limiter Decay", WM8974_DACLIM1, 4, 15, 0), | |
139 | SOC_SINGLE("DAC Playback Limiter Attack", WM8974_DACLIM1, 0, 15, 0), | |
140 | ||
141 | SOC_SINGLE("DAC Playback Limiter Threshold", WM8974_DACLIM2, 4, 7, 0), | |
142 | SOC_SINGLE("DAC Playback Limiter Boost", WM8974_DACLIM2, 0, 15, 0), | |
143 | ||
144 | SOC_SINGLE("ALC Enable Switch", WM8974_ALC1, 8, 1, 0), | |
145 | SOC_SINGLE("ALC Capture Max Gain", WM8974_ALC1, 3, 7, 0), | |
146 | SOC_SINGLE("ALC Capture Min Gain", WM8974_ALC1, 0, 7, 0), | |
147 | ||
148 | SOC_SINGLE("ALC Capture ZC Switch", WM8974_ALC2, 8, 1, 0), | |
149 | SOC_SINGLE("ALC Capture Hold", WM8974_ALC2, 4, 7, 0), | |
150 | SOC_SINGLE("ALC Capture Target", WM8974_ALC2, 0, 15, 0), | |
151 | ||
152 | SOC_ENUM("ALC Capture Mode", wm8974_enum[13]), | |
153 | SOC_SINGLE("ALC Capture Decay", WM8974_ALC3, 4, 15, 0), | |
154 | SOC_SINGLE("ALC Capture Attack", WM8974_ALC3, 0, 15, 0), | |
155 | ||
156 | SOC_SINGLE("ALC Capture Noise Gate Switch", WM8974_NGATE, 3, 1, 0), | |
157 | SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8974_NGATE, 0, 7, 0), | |
158 | ||
159 | SOC_SINGLE("Capture PGA ZC Switch", WM8974_INPPGA, 7, 1, 0), | |
a5f8d2f1 | 160 | SOC_SINGLE_TLV("Capture PGA Volume", WM8974_INPPGA, 0, 63, 0, inpga_tlv), |
0a1bf553 MB |
161 | |
162 | SOC_SINGLE("Speaker Playback ZC Switch", WM8974_SPKVOL, 7, 1, 0), | |
163 | SOC_SINGLE("Speaker Playback Switch", WM8974_SPKVOL, 6, 1, 1), | |
8a123ee2 MB |
164 | SOC_SINGLE_TLV("Speaker Playback Volume", WM8974_SPKVOL, 0, 63, 0, spk_tlv), |
165 | ||
166 | SOC_ENUM("Aux Mode", wm8974_auxmode), | |
0a1bf553 MB |
167 | |
168 | SOC_SINGLE("Capture Boost(+20dB)", WM8974_ADCBOOST, 8, 1, 0), | |
8a123ee2 | 169 | SOC_SINGLE("Mono Playback Switch", WM8974_MONOMIX, 6, 1, 1), |
b2c3e923 GL |
170 | |
171 | /* DAC / ADC oversampling */ | |
172 | SOC_SINGLE("DAC 128x Oversampling Switch", WM8974_DAC, 8, 1, 0), | |
173 | SOC_SINGLE("ADC 128x Oversampling Switch", WM8974_ADC, 8, 1, 0), | |
0a1bf553 MB |
174 | }; |
175 | ||
0a1bf553 MB |
176 | /* Speaker Output Mixer */ |
177 | static const struct snd_kcontrol_new wm8974_speaker_mixer_controls[] = { | |
178 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8974_SPKMIX, 1, 1, 0), | |
179 | SOC_DAPM_SINGLE("Aux Playback Switch", WM8974_SPKMIX, 5, 1, 0), | |
759512fb | 180 | SOC_DAPM_SINGLE("PCM Playback Switch", WM8974_SPKMIX, 0, 1, 0), |
0a1bf553 MB |
181 | }; |
182 | ||
183 | /* Mono Output Mixer */ | |
184 | static const struct snd_kcontrol_new wm8974_mono_mixer_controls[] = { | |
185 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8974_MONOMIX, 1, 1, 0), | |
186 | SOC_DAPM_SINGLE("Aux Playback Switch", WM8974_MONOMIX, 2, 1, 0), | |
8a123ee2 MB |
187 | SOC_DAPM_SINGLE("PCM Playback Switch", WM8974_MONOMIX, 0, 1, 0), |
188 | }; | |
189 | ||
190 | /* Boost mixer */ | |
191 | static const struct snd_kcontrol_new wm8974_boost_mixer[] = { | |
192 | SOC_DAPM_SINGLE("Aux Switch", WM8974_INPPGA, 6, 1, 0), | |
193 | }; | |
194 | ||
195 | /* Input PGA */ | |
196 | static const struct snd_kcontrol_new wm8974_inpga[] = { | |
197 | SOC_DAPM_SINGLE("Aux Switch", WM8974_INPUT, 2, 1, 0), | |
198 | SOC_DAPM_SINGLE("MicN Switch", WM8974_INPUT, 1, 1, 0), | |
199 | SOC_DAPM_SINGLE("MicP Switch", WM8974_INPUT, 0, 1, 0), | |
0a1bf553 MB |
200 | }; |
201 | ||
202 | /* AUX Input boost vol */ | |
203 | static const struct snd_kcontrol_new wm8974_aux_boost_controls = | |
204 | SOC_DAPM_SINGLE("Aux Volume", WM8974_ADCBOOST, 0, 7, 0); | |
205 | ||
206 | /* Mic Input boost vol */ | |
207 | static const struct snd_kcontrol_new wm8974_mic_boost_controls = | |
208 | SOC_DAPM_SINGLE("Mic Volume", WM8974_ADCBOOST, 4, 7, 0); | |
209 | ||
0a1bf553 MB |
210 | static const struct snd_soc_dapm_widget wm8974_dapm_widgets[] = { |
211 | SND_SOC_DAPM_MIXER("Speaker Mixer", WM8974_POWER3, 2, 0, | |
212 | &wm8974_speaker_mixer_controls[0], | |
213 | ARRAY_SIZE(wm8974_speaker_mixer_controls)), | |
214 | SND_SOC_DAPM_MIXER("Mono Mixer", WM8974_POWER3, 3, 0, | |
215 | &wm8974_mono_mixer_controls[0], | |
216 | ARRAY_SIZE(wm8974_mono_mixer_controls)), | |
217 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8974_POWER3, 0, 0), | |
8a123ee2 | 218 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8974_POWER2, 0, 0), |
0a1bf553 MB |
219 | SND_SOC_DAPM_PGA("Aux Input", WM8974_POWER1, 6, 0, NULL, 0), |
220 | SND_SOC_DAPM_PGA("SpkN Out", WM8974_POWER3, 5, 0, NULL, 0), | |
221 | SND_SOC_DAPM_PGA("SpkP Out", WM8974_POWER3, 6, 0, NULL, 0), | |
222 | SND_SOC_DAPM_PGA("Mono Out", WM8974_POWER3, 7, 0, NULL, 0), | |
0a1bf553 | 223 | |
8a123ee2 MB |
224 | SND_SOC_DAPM_MIXER("Input PGA", WM8974_POWER2, 2, 0, wm8974_inpga, |
225 | ARRAY_SIZE(wm8974_inpga)), | |
226 | SND_SOC_DAPM_MIXER("Boost Mixer", WM8974_POWER2, 4, 0, | |
227 | wm8974_boost_mixer, ARRAY_SIZE(wm8974_boost_mixer)), | |
0a1bf553 MB |
228 | |
229 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8974_POWER1, 4, 0), | |
230 | ||
231 | SND_SOC_DAPM_INPUT("MICN"), | |
232 | SND_SOC_DAPM_INPUT("MICP"), | |
233 | SND_SOC_DAPM_INPUT("AUX"), | |
234 | SND_SOC_DAPM_OUTPUT("MONOOUT"), | |
235 | SND_SOC_DAPM_OUTPUT("SPKOUTP"), | |
236 | SND_SOC_DAPM_OUTPUT("SPKOUTN"), | |
237 | }; | |
238 | ||
239 | static const struct snd_soc_dapm_route audio_map[] = { | |
240 | /* Mono output mixer */ | |
241 | {"Mono Mixer", "PCM Playback Switch", "DAC"}, | |
242 | {"Mono Mixer", "Aux Playback Switch", "Aux Input"}, | |
243 | {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"}, | |
244 | ||
245 | /* Speaker output mixer */ | |
246 | {"Speaker Mixer", "PCM Playback Switch", "DAC"}, | |
247 | {"Speaker Mixer", "Aux Playback Switch", "Aux Input"}, | |
248 | {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"}, | |
249 | ||
250 | /* Outputs */ | |
251 | {"Mono Out", NULL, "Mono Mixer"}, | |
252 | {"MONOOUT", NULL, "Mono Out"}, | |
253 | {"SpkN Out", NULL, "Speaker Mixer"}, | |
254 | {"SpkP Out", NULL, "Speaker Mixer"}, | |
255 | {"SPKOUTN", NULL, "SpkN Out"}, | |
256 | {"SPKOUTP", NULL, "SpkP Out"}, | |
257 | ||
258 | /* Boost Mixer */ | |
8a123ee2 MB |
259 | {"ADC", NULL, "Boost Mixer"}, |
260 | {"Boost Mixer", "Aux Switch", "Aux Input"}, | |
261 | {"Boost Mixer", NULL, "Input PGA"}, | |
262 | {"Boost Mixer", NULL, "MICP"}, | |
263 | ||
264 | /* Input PGA */ | |
265 | {"Input PGA", "Aux Switch", "Aux Input"}, | |
266 | {"Input PGA", "MicN Switch", "MICN"}, | |
267 | {"Input PGA", "MicP Switch", "MICP"}, | |
0a1bf553 MB |
268 | |
269 | /* Inputs */ | |
8a123ee2 | 270 | {"Aux Input", NULL, "AUX"}, |
0a1bf553 MB |
271 | }; |
272 | ||
273 | static int wm8974_add_widgets(struct snd_soc_codec *codec) | |
274 | { | |
ce6120cc | 275 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
0a1bf553 | 276 | |
ce6120cc LG |
277 | snd_soc_dapm_new_controls(dapm, wm8974_dapm_widgets, |
278 | ARRAY_SIZE(wm8974_dapm_widgets)); | |
279 | snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); | |
0a1bf553 | 280 | |
0a1bf553 MB |
281 | return 0; |
282 | } | |
283 | ||
284 | struct pll_ { | |
c36b2fc7 | 285 | unsigned int pre_div:1; |
0a1bf553 MB |
286 | unsigned int n:4; |
287 | unsigned int k; | |
288 | }; | |
289 | ||
91d0c3ec MB |
290 | /* The size in bits of the pll divide multiplied by 10 |
291 | * to allow rounding later */ | |
292 | #define FIXED_PLL_SIZE ((1 << 24) * 10) | |
293 | ||
c36b2fc7 MB |
294 | static void pll_factors(struct pll_ *pll_div, |
295 | unsigned int target, unsigned int source) | |
91d0c3ec MB |
296 | { |
297 | unsigned long long Kpart; | |
298 | unsigned int K, Ndiv, Nmod; | |
299 | ||
c36b2fc7 MB |
300 | /* There is a fixed divide by 4 in the output path */ |
301 | target *= 4; | |
302 | ||
91d0c3ec MB |
303 | Ndiv = target / source; |
304 | if (Ndiv < 6) { | |
c36b2fc7 MB |
305 | source /= 2; |
306 | pll_div->pre_div = 1; | |
91d0c3ec MB |
307 | Ndiv = target / source; |
308 | } else | |
c36b2fc7 | 309 | pll_div->pre_div = 0; |
91d0c3ec MB |
310 | |
311 | if ((Ndiv < 6) || (Ndiv > 12)) | |
312 | printk(KERN_WARNING | |
8b83a193 | 313 | "WM8974 N value %u outwith recommended range!\n", |
91d0c3ec MB |
314 | Ndiv); |
315 | ||
c36b2fc7 | 316 | pll_div->n = Ndiv; |
91d0c3ec MB |
317 | Nmod = target % source; |
318 | Kpart = FIXED_PLL_SIZE * (long long)Nmod; | |
319 | ||
320 | do_div(Kpart, source); | |
321 | ||
322 | K = Kpart & 0xFFFFFFFF; | |
323 | ||
324 | /* Check if we need to round */ | |
325 | if ((K % 10) >= 5) | |
326 | K += 5; | |
327 | ||
328 | /* Move down to proper range now rounding is done */ | |
329 | K /= 10; | |
330 | ||
c36b2fc7 | 331 | pll_div->k = K; |
91d0c3ec | 332 | } |
0a1bf553 | 333 | |
85488037 MB |
334 | static int wm8974_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, |
335 | int source, unsigned int freq_in, unsigned int freq_out) | |
0a1bf553 MB |
336 | { |
337 | struct snd_soc_codec *codec = codec_dai->codec; | |
c36b2fc7 | 338 | struct pll_ pll_div; |
0a1bf553 MB |
339 | u16 reg; |
340 | ||
1a55b3f6 | 341 | if (freq_in == 0 || freq_out == 0) { |
91d0c3ec | 342 | /* Clock CODEC directly from MCLK */ |
1e97f50b MB |
343 | reg = snd_soc_read(codec, WM8974_CLOCK); |
344 | snd_soc_write(codec, WM8974_CLOCK, reg & 0x0ff); | |
91d0c3ec MB |
345 | |
346 | /* Turn off PLL */ | |
1e97f50b MB |
347 | reg = snd_soc_read(codec, WM8974_POWER1); |
348 | snd_soc_write(codec, WM8974_POWER1, reg & 0x1df); | |
0a1bf553 MB |
349 | return 0; |
350 | } | |
351 | ||
c36b2fc7 | 352 | pll_factors(&pll_div, freq_out, freq_in); |
91d0c3ec | 353 | |
1e97f50b MB |
354 | snd_soc_write(codec, WM8974_PLLN, (pll_div.pre_div << 4) | pll_div.n); |
355 | snd_soc_write(codec, WM8974_PLLK1, pll_div.k >> 18); | |
356 | snd_soc_write(codec, WM8974_PLLK2, (pll_div.k >> 9) & 0x1ff); | |
357 | snd_soc_write(codec, WM8974_PLLK3, pll_div.k & 0x1ff); | |
358 | reg = snd_soc_read(codec, WM8974_POWER1); | |
359 | snd_soc_write(codec, WM8974_POWER1, reg | 0x020); | |
1a55b3f6 | 360 | |
91d0c3ec | 361 | /* Run CODEC from PLL instead of MCLK */ |
1e97f50b MB |
362 | reg = snd_soc_read(codec, WM8974_CLOCK); |
363 | snd_soc_write(codec, WM8974_CLOCK, reg | 0x100); | |
91d0c3ec MB |
364 | |
365 | return 0; | |
0a1bf553 MB |
366 | } |
367 | ||
368 | /* | |
369 | * Configure WM8974 clock dividers. | |
370 | */ | |
371 | static int wm8974_set_dai_clkdiv(struct snd_soc_dai *codec_dai, | |
372 | int div_id, int div) | |
373 | { | |
374 | struct snd_soc_codec *codec = codec_dai->codec; | |
375 | u16 reg; | |
376 | ||
377 | switch (div_id) { | |
378 | case WM8974_OPCLKDIV: | |
1e97f50b MB |
379 | reg = snd_soc_read(codec, WM8974_GPIO) & 0x1cf; |
380 | snd_soc_write(codec, WM8974_GPIO, reg | div); | |
0a1bf553 MB |
381 | break; |
382 | case WM8974_MCLKDIV: | |
1e97f50b MB |
383 | reg = snd_soc_read(codec, WM8974_CLOCK) & 0x11f; |
384 | snd_soc_write(codec, WM8974_CLOCK, reg | div); | |
0a1bf553 | 385 | break; |
0a1bf553 | 386 | case WM8974_BCLKDIV: |
1e97f50b MB |
387 | reg = snd_soc_read(codec, WM8974_CLOCK) & 0x1e3; |
388 | snd_soc_write(codec, WM8974_CLOCK, reg | div); | |
0a1bf553 MB |
389 | break; |
390 | default: | |
391 | return -EINVAL; | |
392 | } | |
393 | ||
394 | return 0; | |
395 | } | |
396 | ||
397 | static int wm8974_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
398 | unsigned int fmt) | |
399 | { | |
400 | struct snd_soc_codec *codec = codec_dai->codec; | |
401 | u16 iface = 0; | |
1e97f50b | 402 | u16 clk = snd_soc_read(codec, WM8974_CLOCK) & 0x1fe; |
0a1bf553 MB |
403 | |
404 | /* set master/slave audio interface */ | |
405 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
406 | case SND_SOC_DAIFMT_CBM_CFM: | |
407 | clk |= 0x0001; | |
408 | break; | |
409 | case SND_SOC_DAIFMT_CBS_CFS: | |
410 | break; | |
411 | default: | |
412 | return -EINVAL; | |
413 | } | |
414 | ||
415 | /* interface format */ | |
416 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
417 | case SND_SOC_DAIFMT_I2S: | |
418 | iface |= 0x0010; | |
419 | break; | |
420 | case SND_SOC_DAIFMT_RIGHT_J: | |
421 | break; | |
422 | case SND_SOC_DAIFMT_LEFT_J: | |
423 | iface |= 0x0008; | |
424 | break; | |
425 | case SND_SOC_DAIFMT_DSP_A: | |
426 | iface |= 0x00018; | |
427 | break; | |
428 | default: | |
429 | return -EINVAL; | |
430 | } | |
431 | ||
432 | /* clock inversion */ | |
433 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
434 | case SND_SOC_DAIFMT_NB_NF: | |
435 | break; | |
436 | case SND_SOC_DAIFMT_IB_IF: | |
437 | iface |= 0x0180; | |
438 | break; | |
439 | case SND_SOC_DAIFMT_IB_NF: | |
440 | iface |= 0x0100; | |
441 | break; | |
442 | case SND_SOC_DAIFMT_NB_IF: | |
443 | iface |= 0x0080; | |
444 | break; | |
445 | default: | |
446 | return -EINVAL; | |
447 | } | |
448 | ||
1e97f50b MB |
449 | snd_soc_write(codec, WM8974_IFACE, iface); |
450 | snd_soc_write(codec, WM8974_CLOCK, clk); | |
0a1bf553 MB |
451 | return 0; |
452 | } | |
453 | ||
454 | static int wm8974_pcm_hw_params(struct snd_pcm_substream *substream, | |
455 | struct snd_pcm_hw_params *params, | |
456 | struct snd_soc_dai *dai) | |
457 | { | |
458 | struct snd_soc_codec *codec = dai->codec; | |
1e97f50b MB |
459 | u16 iface = snd_soc_read(codec, WM8974_IFACE) & 0x19f; |
460 | u16 adn = snd_soc_read(codec, WM8974_ADD) & 0x1f1; | |
0a1bf553 MB |
461 | |
462 | /* bit size */ | |
463 | switch (params_format(params)) { | |
464 | case SNDRV_PCM_FORMAT_S16_LE: | |
465 | break; | |
466 | case SNDRV_PCM_FORMAT_S20_3LE: | |
467 | iface |= 0x0020; | |
468 | break; | |
469 | case SNDRV_PCM_FORMAT_S24_LE: | |
470 | iface |= 0x0040; | |
471 | break; | |
472 | case SNDRV_PCM_FORMAT_S32_LE: | |
473 | iface |= 0x0060; | |
474 | break; | |
475 | } | |
476 | ||
477 | /* filter coefficient */ | |
478 | switch (params_rate(params)) { | |
b3172f22 | 479 | case 8000: |
0a1bf553 MB |
480 | adn |= 0x5 << 1; |
481 | break; | |
b3172f22 | 482 | case 11025: |
0a1bf553 MB |
483 | adn |= 0x4 << 1; |
484 | break; | |
b3172f22 | 485 | case 16000: |
0a1bf553 MB |
486 | adn |= 0x3 << 1; |
487 | break; | |
b3172f22 | 488 | case 22050: |
0a1bf553 MB |
489 | adn |= 0x2 << 1; |
490 | break; | |
b3172f22 | 491 | case 32000: |
0a1bf553 MB |
492 | adn |= 0x1 << 1; |
493 | break; | |
b3172f22 GL |
494 | case 44100: |
495 | case 48000: | |
0a1bf553 MB |
496 | break; |
497 | } | |
498 | ||
1e97f50b MB |
499 | snd_soc_write(codec, WM8974_IFACE, iface); |
500 | snd_soc_write(codec, WM8974_ADD, adn); | |
0a1bf553 MB |
501 | return 0; |
502 | } | |
503 | ||
504 | static int wm8974_mute(struct snd_soc_dai *dai, int mute) | |
505 | { | |
506 | struct snd_soc_codec *codec = dai->codec; | |
1e97f50b | 507 | u16 mute_reg = snd_soc_read(codec, WM8974_DAC) & 0xffbf; |
0a1bf553 | 508 | |
1a55b3f6 | 509 | if (mute) |
1e97f50b | 510 | snd_soc_write(codec, WM8974_DAC, mute_reg | 0x40); |
0a1bf553 | 511 | else |
1e97f50b | 512 | snd_soc_write(codec, WM8974_DAC, mute_reg); |
0a1bf553 MB |
513 | return 0; |
514 | } | |
515 | ||
516 | /* liam need to make this lower power with dapm */ | |
517 | static int wm8974_set_bias_level(struct snd_soc_codec *codec, | |
518 | enum snd_soc_bias_level level) | |
519 | { | |
1e97f50b | 520 | u16 power1 = snd_soc_read(codec, WM8974_POWER1) & ~0x3; |
df1ef7a3 | 521 | |
0a1bf553 MB |
522 | switch (level) { |
523 | case SND_SOC_BIAS_ON: | |
0a1bf553 | 524 | case SND_SOC_BIAS_PREPARE: |
df1ef7a3 | 525 | power1 |= 0x1; /* VMID 50k */ |
1e97f50b | 526 | snd_soc_write(codec, WM8974_POWER1, power1); |
0a1bf553 | 527 | break; |
df1ef7a3 | 528 | |
0a1bf553 | 529 | case SND_SOC_BIAS_STANDBY: |
df1ef7a3 MB |
530 | power1 |= WM8974_POWER1_BIASEN | WM8974_POWER1_BUFIOEN; |
531 | ||
ce6120cc | 532 | if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { |
df1ef7a3 | 533 | /* Initial cap charge at VMID 5k */ |
1e97f50b | 534 | snd_soc_write(codec, WM8974_POWER1, power1 | 0x3); |
df1ef7a3 MB |
535 | mdelay(100); |
536 | } | |
537 | ||
538 | power1 |= 0x2; /* VMID 500k */ | |
1e97f50b | 539 | snd_soc_write(codec, WM8974_POWER1, power1); |
0a1bf553 | 540 | break; |
df1ef7a3 | 541 | |
0a1bf553 | 542 | case SND_SOC_BIAS_OFF: |
1e97f50b MB |
543 | snd_soc_write(codec, WM8974_POWER1, 0); |
544 | snd_soc_write(codec, WM8974_POWER2, 0); | |
545 | snd_soc_write(codec, WM8974_POWER3, 0); | |
0a1bf553 MB |
546 | break; |
547 | } | |
df1ef7a3 | 548 | |
ce6120cc | 549 | codec->dapm.bias_level = level; |
0a1bf553 MB |
550 | return 0; |
551 | } | |
552 | ||
1a55b3f6 | 553 | #define WM8974_RATES (SNDRV_PCM_RATE_8000_48000) |
0a1bf553 MB |
554 | |
555 | #define WM8974_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
556 | SNDRV_PCM_FMTBIT_S24_LE) | |
557 | ||
558 | static struct snd_soc_dai_ops wm8974_ops = { | |
559 | .hw_params = wm8974_pcm_hw_params, | |
560 | .digital_mute = wm8974_mute, | |
561 | .set_fmt = wm8974_set_dai_fmt, | |
562 | .set_clkdiv = wm8974_set_dai_clkdiv, | |
563 | .set_pll = wm8974_set_dai_pll, | |
564 | }; | |
565 | ||
f0fba2ad LG |
566 | static struct snd_soc_dai_driver wm8974_dai = { |
567 | .name = "wm8974-hifi", | |
0a1bf553 MB |
568 | .playback = { |
569 | .stream_name = "Playback", | |
570 | .channels_min = 1, | |
33d81af4 | 571 | .channels_max = 2, /* Only 1 channel of data */ |
0a1bf553 MB |
572 | .rates = WM8974_RATES, |
573 | .formats = WM8974_FORMATS,}, | |
574 | .capture = { | |
575 | .stream_name = "Capture", | |
576 | .channels_min = 1, | |
33d81af4 | 577 | .channels_max = 2, /* Only 1 channel of data */ |
0a1bf553 MB |
578 | .rates = WM8974_RATES, |
579 | .formats = WM8974_FORMATS,}, | |
580 | .ops = &wm8974_ops, | |
cb11d39e | 581 | .symmetric_rates = 1, |
0a1bf553 | 582 | }; |
0a1bf553 | 583 | |
f0fba2ad | 584 | static int wm8974_suspend(struct snd_soc_codec *codec, pm_message_t state) |
0a1bf553 | 585 | { |
0a1bf553 MB |
586 | wm8974_set_bias_level(codec, SND_SOC_BIAS_OFF); |
587 | return 0; | |
588 | } | |
589 | ||
f0fba2ad | 590 | static int wm8974_resume(struct snd_soc_codec *codec) |
0a1bf553 | 591 | { |
0a1bf553 MB |
592 | int i; |
593 | u8 data[2]; | |
594 | u16 *cache = codec->reg_cache; | |
595 | ||
596 | /* Sync reg_cache with the hardware */ | |
597 | for (i = 0; i < ARRAY_SIZE(wm8974_reg); i++) { | |
598 | data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); | |
599 | data[1] = cache[i] & 0x00ff; | |
600 | codec->hw_write(codec->control_data, data, 2); | |
601 | } | |
602 | wm8974_set_bias_level(codec, SND_SOC_BIAS_STANDBY); | |
29e189c2 | 603 | |
0a1bf553 MB |
604 | return 0; |
605 | } | |
606 | ||
f0fba2ad | 607 | static int wm8974_probe(struct snd_soc_codec *codec) |
0a1bf553 | 608 | { |
0a1bf553 MB |
609 | int ret = 0; |
610 | ||
f0fba2ad LG |
611 | ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_I2C); |
612 | if (ret < 0) { | |
613 | dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); | |
614 | return ret; | |
4fcbbb67 | 615 | } |
0a1bf553 | 616 | |
f0fba2ad | 617 | ret = wm8974_reset(codec); |
1a55b3f6 | 618 | if (ret < 0) { |
f0fba2ad LG |
619 | dev_err(codec->dev, "Failed to issue reset\n"); |
620 | return ret; | |
0a1bf553 MB |
621 | } |
622 | ||
f0fba2ad | 623 | wm8974_set_bias_level(codec, SND_SOC_BIAS_STANDBY); |
4fcbbb67 MB |
624 | snd_soc_add_controls(codec, wm8974_snd_controls, |
625 | ARRAY_SIZE(wm8974_snd_controls)); | |
0a1bf553 | 626 | wm8974_add_widgets(codec); |
4fcbbb67 | 627 | |
0a1bf553 | 628 | return ret; |
0a1bf553 MB |
629 | } |
630 | ||
4fcbbb67 | 631 | /* power down chip */ |
f0fba2ad | 632 | static int wm8974_remove(struct snd_soc_codec *codec) |
4fcbbb67 | 633 | { |
f0fba2ad | 634 | wm8974_set_bias_level(codec, SND_SOC_BIAS_OFF); |
4fcbbb67 MB |
635 | return 0; |
636 | } | |
0a1bf553 | 637 | |
f0fba2ad | 638 | static struct snd_soc_codec_driver soc_codec_dev_wm8974 = { |
4fcbbb67 MB |
639 | .probe = wm8974_probe, |
640 | .remove = wm8974_remove, | |
641 | .suspend = wm8974_suspend, | |
642 | .resume = wm8974_resume, | |
f0fba2ad LG |
643 | .set_bias_level = wm8974_set_bias_level, |
644 | .reg_cache_size = ARRAY_SIZE(wm8974_reg), | |
645 | .reg_word_size = sizeof(u16), | |
646 | .reg_cache_default = wm8974_reg, | |
4fcbbb67 | 647 | }; |
0a1bf553 | 648 | |
f0fba2ad | 649 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
4fcbbb67 MB |
650 | static __devinit int wm8974_i2c_probe(struct i2c_client *i2c, |
651 | const struct i2c_device_id *id) | |
0a1bf553 | 652 | { |
4fcbbb67 | 653 | struct wm8974_priv *wm8974; |
f0fba2ad | 654 | int ret; |
0a1bf553 | 655 | |
4fcbbb67 MB |
656 | wm8974 = kzalloc(sizeof(struct wm8974_priv), GFP_KERNEL); |
657 | if (wm8974 == NULL) | |
0a1bf553 MB |
658 | return -ENOMEM; |
659 | ||
4fcbbb67 | 660 | i2c_set_clientdata(i2c, wm8974); |
0a1bf553 | 661 | |
f0fba2ad LG |
662 | ret = snd_soc_register_codec(&i2c->dev, |
663 | &soc_codec_dev_wm8974, &wm8974_dai, 1); | |
664 | if (ret < 0) | |
665 | kfree(wm8974); | |
666 | return ret; | |
4fcbbb67 | 667 | } |
0a1bf553 | 668 | |
4fcbbb67 MB |
669 | static __devexit int wm8974_i2c_remove(struct i2c_client *client) |
670 | { | |
f0fba2ad LG |
671 | snd_soc_unregister_codec(&client->dev); |
672 | kfree(i2c_get_clientdata(client)); | |
0a1bf553 MB |
673 | return 0; |
674 | } | |
675 | ||
4fcbbb67 MB |
676 | static const struct i2c_device_id wm8974_i2c_id[] = { |
677 | { "wm8974", 0 }, | |
678 | { } | |
679 | }; | |
680 | MODULE_DEVICE_TABLE(i2c, wm8974_i2c_id); | |
681 | ||
682 | static struct i2c_driver wm8974_i2c_driver = { | |
683 | .driver = { | |
f0fba2ad | 684 | .name = "wm8974-codec", |
4fcbbb67 MB |
685 | .owner = THIS_MODULE, |
686 | }, | |
687 | .probe = wm8974_i2c_probe, | |
688 | .remove = __devexit_p(wm8974_i2c_remove), | |
689 | .id_table = wm8974_i2c_id, | |
0a1bf553 | 690 | }; |
f0fba2ad | 691 | #endif |
0a1bf553 MB |
692 | |
693 | static int __init wm8974_modinit(void) | |
694 | { | |
f0fba2ad LG |
695 | int ret = 0; |
696 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) | |
697 | ret = i2c_add_driver(&wm8974_i2c_driver); | |
698 | if (ret != 0) { | |
699 | printk(KERN_ERR "Failed to register wm8974 I2C driver: %d\n", | |
700 | ret); | |
701 | } | |
702 | #endif | |
703 | return ret; | |
0a1bf553 MB |
704 | } |
705 | module_init(wm8974_modinit); | |
706 | ||
707 | static void __exit wm8974_exit(void) | |
708 | { | |
f0fba2ad | 709 | #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) |
4fcbbb67 | 710 | i2c_del_driver(&wm8974_i2c_driver); |
f0fba2ad | 711 | #endif |
0a1bf553 MB |
712 | } |
713 | module_exit(wm8974_exit); | |
714 | ||
715 | MODULE_DESCRIPTION("ASoC WM8974 driver"); | |
716 | MODULE_AUTHOR("Liam Girdwood"); | |
717 | MODULE_LICENSE("GPL"); |