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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
0b5e92c5 JC |
2 | /* |
3 | * wm8940.c -- WM8940 ALSA Soc Audio driver | |
4 | * | |
5 | * Author: Jonathan Cameron <jic23@cam.ac.uk> | |
6 | * | |
7 | * Based on wm8510.c | |
8 | * Copyright 2006 Wolfson Microelectronics PLC. | |
9 | * Author: Liam Girdwood <lrg@slimlogic.co.uk> | |
10 | * | |
0b5e92c5 JC |
11 | * Not currently handled: |
12 | * Notch filter control | |
13 | * AUXMode (inverting vs mixer) | |
14 | * No means to obtain current gain if alc enabled. | |
15 | * No use made of gpio | |
16 | * Fast VMID discharge for power down | |
17 | * Soft Start | |
18 | * DLR and ALR Swaps not enabled | |
19 | * Digital Sidetone not supported | |
20 | */ | |
21 | #include <linux/module.h> | |
22 | #include <linux/moduleparam.h> | |
23 | #include <linux/kernel.h> | |
24 | #include <linux/init.h> | |
25 | #include <linux/delay.h> | |
26 | #include <linux/pm.h> | |
27 | #include <linux/i2c.h> | |
fbbf7fea | 28 | #include <linux/regmap.h> |
5a0e3ad6 | 29 | #include <linux/slab.h> |
0b5e92c5 JC |
30 | #include <sound/core.h> |
31 | #include <sound/pcm.h> | |
32 | #include <sound/pcm_params.h> | |
33 | #include <sound/soc.h> | |
0b5e92c5 JC |
34 | #include <sound/initval.h> |
35 | #include <sound/tlv.h> | |
36 | ||
37 | #include "wm8940.h" | |
38 | ||
39 | struct wm8940_priv { | |
40 | unsigned int sysclk; | |
fbbf7fea | 41 | struct regmap *regmap; |
0b5e92c5 JC |
42 | }; |
43 | ||
fbbf7fea | 44 | static bool wm8940_volatile_register(struct device *dev, unsigned int reg) |
788b6e8e AL |
45 | { |
46 | switch (reg) { | |
47 | case WM8940_SOFTRESET: | |
fbbf7fea | 48 | return true; |
788b6e8e | 49 | default: |
fbbf7fea MB |
50 | return false; |
51 | } | |
52 | } | |
53 | ||
54 | static bool wm8940_readable_register(struct device *dev, unsigned int reg) | |
55 | { | |
56 | switch (reg) { | |
57 | case WM8940_SOFTRESET: | |
58 | case WM8940_POWER1: | |
59 | case WM8940_POWER2: | |
60 | case WM8940_POWER3: | |
61 | case WM8940_IFACE: | |
62 | case WM8940_COMPANDINGCTL: | |
63 | case WM8940_CLOCK: | |
64 | case WM8940_ADDCNTRL: | |
65 | case WM8940_GPIO: | |
66 | case WM8940_CTLINT: | |
67 | case WM8940_DAC: | |
68 | case WM8940_DACVOL: | |
69 | case WM8940_ADC: | |
70 | case WM8940_ADCVOL: | |
71 | case WM8940_NOTCH1: | |
72 | case WM8940_NOTCH2: | |
73 | case WM8940_NOTCH3: | |
74 | case WM8940_NOTCH4: | |
75 | case WM8940_NOTCH5: | |
76 | case WM8940_NOTCH6: | |
77 | case WM8940_NOTCH7: | |
78 | case WM8940_NOTCH8: | |
79 | case WM8940_DACLIM1: | |
80 | case WM8940_DACLIM2: | |
81 | case WM8940_ALC1: | |
82 | case WM8940_ALC2: | |
83 | case WM8940_ALC3: | |
84 | case WM8940_NOISEGATE: | |
85 | case WM8940_PLLN: | |
86 | case WM8940_PLLK1: | |
87 | case WM8940_PLLK2: | |
88 | case WM8940_PLLK3: | |
89 | case WM8940_ALC4: | |
90 | case WM8940_INPUTCTL: | |
91 | case WM8940_PGAGAIN: | |
92 | case WM8940_ADCBOOST: | |
93 | case WM8940_OUTPUTCTL: | |
94 | case WM8940_SPKMIX: | |
95 | case WM8940_SPKVOL: | |
96 | case WM8940_MONOMIX: | |
97 | return true; | |
98 | default: | |
99 | return false; | |
788b6e8e AL |
100 | } |
101 | } | |
102 | ||
fbbf7fea MB |
103 | static const struct reg_default wm8940_reg_defaults[] = { |
104 | { 0x1, 0x0000 }, /* Power 1 */ | |
105 | { 0x2, 0x0000 }, /* Power 2 */ | |
106 | { 0x3, 0x0000 }, /* Power 3 */ | |
107 | { 0x4, 0x0010 }, /* Interface Control */ | |
108 | { 0x5, 0x0000 }, /* Companding Control */ | |
109 | { 0x6, 0x0140 }, /* Clock Control */ | |
110 | { 0x7, 0x0000 }, /* Additional Controls */ | |
111 | { 0x8, 0x0000 }, /* GPIO Control */ | |
112 | { 0x9, 0x0002 }, /* Auto Increment Control */ | |
113 | { 0xa, 0x0000 }, /* DAC Control */ | |
114 | { 0xb, 0x00FF }, /* DAC Volume */ | |
115 | ||
116 | { 0xe, 0x0100 }, /* ADC Control */ | |
117 | { 0xf, 0x00FF }, /* ADC Volume */ | |
118 | { 0x10, 0x0000 }, /* Notch Filter 1 Control 1 */ | |
119 | { 0x11, 0x0000 }, /* Notch Filter 1 Control 2 */ | |
120 | { 0x12, 0x0000 }, /* Notch Filter 2 Control 1 */ | |
121 | { 0x13, 0x0000 }, /* Notch Filter 2 Control 2 */ | |
122 | { 0x14, 0x0000 }, /* Notch Filter 3 Control 1 */ | |
123 | { 0x15, 0x0000 }, /* Notch Filter 3 Control 2 */ | |
124 | { 0x16, 0x0000 }, /* Notch Filter 4 Control 1 */ | |
125 | { 0x17, 0x0000 }, /* Notch Filter 4 Control 2 */ | |
126 | { 0x18, 0x0032 }, /* DAC Limit Control 1 */ | |
127 | { 0x19, 0x0000 }, /* DAC Limit Control 2 */ | |
128 | ||
129 | { 0x20, 0x0038 }, /* ALC Control 1 */ | |
130 | { 0x21, 0x000B }, /* ALC Control 2 */ | |
131 | { 0x22, 0x0032 }, /* ALC Control 3 */ | |
132 | { 0x23, 0x0000 }, /* Noise Gate */ | |
133 | { 0x24, 0x0041 }, /* PLLN */ | |
134 | { 0x25, 0x000C }, /* PLLK1 */ | |
135 | { 0x26, 0x0093 }, /* PLLK2 */ | |
136 | { 0x27, 0x00E9 }, /* PLLK3 */ | |
137 | ||
138 | { 0x2a, 0x0030 }, /* ALC Control 4 */ | |
139 | ||
140 | { 0x2c, 0x0002 }, /* Input Control */ | |
141 | { 0x2d, 0x0050 }, /* PGA Gain */ | |
142 | ||
143 | { 0x2f, 0x0002 }, /* ADC Boost Control */ | |
144 | ||
145 | { 0x31, 0x0002 }, /* Output Control */ | |
146 | { 0x32, 0x0000 }, /* Speaker Mixer Control */ | |
147 | ||
148 | { 0x36, 0x0079 }, /* Speaker Volume */ | |
149 | ||
150 | { 0x38, 0x0000 }, /* Mono Mixer Control */ | |
0b5e92c5 JC |
151 | }; |
152 | ||
0b5e92c5 | 153 | static const char *wm8940_companding[] = { "Off", "NC", "u-law", "A-law" }; |
47ef3427 TI |
154 | static SOC_ENUM_SINGLE_DECL(wm8940_adc_companding_enum, |
155 | WM8940_COMPANDINGCTL, 1, wm8940_companding); | |
156 | static SOC_ENUM_SINGLE_DECL(wm8940_dac_companding_enum, | |
157 | WM8940_COMPANDINGCTL, 3, wm8940_companding); | |
0b5e92c5 JC |
158 | |
159 | static const char *wm8940_alc_mode_text[] = {"ALC", "Limiter"}; | |
47ef3427 TI |
160 | static SOC_ENUM_SINGLE_DECL(wm8940_alc_mode_enum, |
161 | WM8940_ALC3, 8, wm8940_alc_mode_text); | |
0b5e92c5 JC |
162 | |
163 | static const char *wm8940_mic_bias_level_text[] = {"0.9", "0.65"}; | |
47ef3427 TI |
164 | static SOC_ENUM_SINGLE_DECL(wm8940_mic_bias_level_enum, |
165 | WM8940_INPUTCTL, 8, wm8940_mic_bias_level_text); | |
0b5e92c5 JC |
166 | |
167 | static const char *wm8940_filter_mode_text[] = {"Audio", "Application"}; | |
47ef3427 TI |
168 | static SOC_ENUM_SINGLE_DECL(wm8940_filter_mode_enum, |
169 | WM8940_ADC, 7, wm8940_filter_mode_text); | |
0b5e92c5 | 170 | |
6be01cfb MB |
171 | static DECLARE_TLV_DB_SCALE(wm8940_spk_vol_tlv, -5700, 100, 1); |
172 | static DECLARE_TLV_DB_SCALE(wm8940_att_tlv, -1000, 1000, 0); | |
173 | static DECLARE_TLV_DB_SCALE(wm8940_pga_vol_tlv, -1200, 75, 0); | |
174 | static DECLARE_TLV_DB_SCALE(wm8940_alc_min_tlv, -1200, 600, 0); | |
175 | static DECLARE_TLV_DB_SCALE(wm8940_alc_max_tlv, 675, 600, 0); | |
176 | static DECLARE_TLV_DB_SCALE(wm8940_alc_tar_tlv, -2250, 50, 0); | |
177 | static DECLARE_TLV_DB_SCALE(wm8940_lim_boost_tlv, 0, 100, 0); | |
178 | static DECLARE_TLV_DB_SCALE(wm8940_lim_thresh_tlv, -600, 100, 0); | |
179 | static DECLARE_TLV_DB_SCALE(wm8940_adc_tlv, -12750, 50, 1); | |
180 | static DECLARE_TLV_DB_SCALE(wm8940_capture_boost_vol_tlv, 0, 2000, 0); | |
0b5e92c5 JC |
181 | |
182 | static const struct snd_kcontrol_new wm8940_snd_controls[] = { | |
183 | SOC_SINGLE("Digital Loopback Switch", WM8940_COMPANDINGCTL, | |
184 | 6, 1, 0), | |
185 | SOC_ENUM("DAC Companding", wm8940_dac_companding_enum), | |
186 | SOC_ENUM("ADC Companding", wm8940_adc_companding_enum), | |
187 | ||
188 | SOC_ENUM("ALC Mode", wm8940_alc_mode_enum), | |
189 | SOC_SINGLE("ALC Switch", WM8940_ALC1, 8, 1, 0), | |
190 | SOC_SINGLE_TLV("ALC Capture Max Gain", WM8940_ALC1, | |
191 | 3, 7, 1, wm8940_alc_max_tlv), | |
192 | SOC_SINGLE_TLV("ALC Capture Min Gain", WM8940_ALC1, | |
193 | 0, 7, 0, wm8940_alc_min_tlv), | |
194 | SOC_SINGLE_TLV("ALC Capture Target", WM8940_ALC2, | |
195 | 0, 14, 0, wm8940_alc_tar_tlv), | |
196 | SOC_SINGLE("ALC Capture Hold", WM8940_ALC2, 4, 10, 0), | |
197 | SOC_SINGLE("ALC Capture Decay", WM8940_ALC3, 4, 10, 0), | |
198 | SOC_SINGLE("ALC Capture Attach", WM8940_ALC3, 0, 10, 0), | |
199 | SOC_SINGLE("ALC ZC Switch", WM8940_ALC4, 1, 1, 0), | |
200 | SOC_SINGLE("ALC Capture Noise Gate Switch", WM8940_NOISEGATE, | |
201 | 3, 1, 0), | |
202 | SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8940_NOISEGATE, | |
203 | 0, 7, 0), | |
204 | ||
205 | SOC_SINGLE("DAC Playback Limiter Switch", WM8940_DACLIM1, 8, 1, 0), | |
206 | SOC_SINGLE("DAC Playback Limiter Attack", WM8940_DACLIM1, 0, 9, 0), | |
207 | SOC_SINGLE("DAC Playback Limiter Decay", WM8940_DACLIM1, 4, 11, 0), | |
208 | SOC_SINGLE_TLV("DAC Playback Limiter Threshold", WM8940_DACLIM2, | |
209 | 4, 9, 1, wm8940_lim_thresh_tlv), | |
210 | SOC_SINGLE_TLV("DAC Playback Limiter Boost", WM8940_DACLIM2, | |
211 | 0, 12, 0, wm8940_lim_boost_tlv), | |
212 | ||
213 | SOC_SINGLE("Capture PGA ZC Switch", WM8940_PGAGAIN, 7, 1, 0), | |
214 | SOC_SINGLE_TLV("Capture PGA Volume", WM8940_PGAGAIN, | |
215 | 0, 63, 0, wm8940_pga_vol_tlv), | |
216 | SOC_SINGLE_TLV("Digital Playback Volume", WM8940_DACVOL, | |
217 | 0, 255, 0, wm8940_adc_tlv), | |
218 | SOC_SINGLE_TLV("Digital Capture Volume", WM8940_ADCVOL, | |
219 | 0, 255, 0, wm8940_adc_tlv), | |
220 | SOC_ENUM("Mic Bias Level", wm8940_mic_bias_level_enum), | |
221 | SOC_SINGLE_TLV("Capture Boost Volue", WM8940_ADCBOOST, | |
222 | 8, 1, 0, wm8940_capture_boost_vol_tlv), | |
223 | SOC_SINGLE_TLV("Speaker Playback Volume", WM8940_SPKVOL, | |
224 | 0, 63, 0, wm8940_spk_vol_tlv), | |
225 | SOC_SINGLE("Speaker Playback Switch", WM8940_SPKVOL, 6, 1, 1), | |
226 | ||
227 | SOC_SINGLE_TLV("Speaker Mixer Line Bypass Volume", WM8940_SPKVOL, | |
228 | 8, 1, 1, wm8940_att_tlv), | |
229 | SOC_SINGLE("Speaker Playback ZC Switch", WM8940_SPKVOL, 7, 1, 0), | |
230 | ||
231 | SOC_SINGLE("Mono Out Switch", WM8940_MONOMIX, 6, 1, 1), | |
232 | SOC_SINGLE_TLV("Mono Mixer Line Bypass Volume", WM8940_MONOMIX, | |
233 | 7, 1, 1, wm8940_att_tlv), | |
234 | ||
235 | SOC_SINGLE("High Pass Filter Switch", WM8940_ADC, 8, 1, 0), | |
236 | SOC_ENUM("High Pass Filter Mode", wm8940_filter_mode_enum), | |
237 | SOC_SINGLE("High Pass Filter Cut Off", WM8940_ADC, 4, 7, 0), | |
238 | SOC_SINGLE("ADC Inversion Switch", WM8940_ADC, 0, 1, 0), | |
239 | SOC_SINGLE("DAC Inversion Switch", WM8940_DAC, 0, 1, 0), | |
240 | SOC_SINGLE("DAC Auto Mute Switch", WM8940_DAC, 2, 1, 0), | |
241 | SOC_SINGLE("ZC Timeout Clock Switch", WM8940_ADDCNTRL, 0, 1, 0), | |
242 | }; | |
243 | ||
244 | static const struct snd_kcontrol_new wm8940_speaker_mixer_controls[] = { | |
245 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8940_SPKMIX, 1, 1, 0), | |
246 | SOC_DAPM_SINGLE("Aux Playback Switch", WM8940_SPKMIX, 5, 1, 0), | |
247 | SOC_DAPM_SINGLE("PCM Playback Switch", WM8940_SPKMIX, 0, 1, 0), | |
248 | }; | |
249 | ||
250 | static const struct snd_kcontrol_new wm8940_mono_mixer_controls[] = { | |
251 | SOC_DAPM_SINGLE("Line Bypass Switch", WM8940_MONOMIX, 1, 1, 0), | |
252 | SOC_DAPM_SINGLE("Aux Playback Switch", WM8940_MONOMIX, 2, 1, 0), | |
253 | SOC_DAPM_SINGLE("PCM Playback Switch", WM8940_MONOMIX, 0, 1, 0), | |
254 | }; | |
255 | ||
6be01cfb | 256 | static DECLARE_TLV_DB_SCALE(wm8940_boost_vol_tlv, -1500, 300, 1); |
0b5e92c5 JC |
257 | static const struct snd_kcontrol_new wm8940_input_boost_controls[] = { |
258 | SOC_DAPM_SINGLE("Mic PGA Switch", WM8940_PGAGAIN, 6, 1, 1), | |
259 | SOC_DAPM_SINGLE_TLV("Aux Volume", WM8940_ADCBOOST, | |
260 | 0, 7, 0, wm8940_boost_vol_tlv), | |
261 | SOC_DAPM_SINGLE_TLV("Mic Volume", WM8940_ADCBOOST, | |
262 | 4, 7, 0, wm8940_boost_vol_tlv), | |
263 | }; | |
264 | ||
265 | static const struct snd_kcontrol_new wm8940_micpga_controls[] = { | |
266 | SOC_DAPM_SINGLE("AUX Switch", WM8940_INPUTCTL, 2, 1, 0), | |
267 | SOC_DAPM_SINGLE("MICP Switch", WM8940_INPUTCTL, 0, 1, 0), | |
268 | SOC_DAPM_SINGLE("MICN Switch", WM8940_INPUTCTL, 1, 1, 0), | |
269 | }; | |
270 | ||
271 | static const struct snd_soc_dapm_widget wm8940_dapm_widgets[] = { | |
272 | SND_SOC_DAPM_MIXER("Speaker Mixer", WM8940_POWER3, 2, 0, | |
273 | &wm8940_speaker_mixer_controls[0], | |
274 | ARRAY_SIZE(wm8940_speaker_mixer_controls)), | |
275 | SND_SOC_DAPM_MIXER("Mono Mixer", WM8940_POWER3, 3, 0, | |
276 | &wm8940_mono_mixer_controls[0], | |
277 | ARRAY_SIZE(wm8940_mono_mixer_controls)), | |
278 | SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8940_POWER3, 0, 0), | |
279 | ||
280 | SND_SOC_DAPM_PGA("SpkN Out", WM8940_POWER3, 5, 0, NULL, 0), | |
281 | SND_SOC_DAPM_PGA("SpkP Out", WM8940_POWER3, 6, 0, NULL, 0), | |
282 | SND_SOC_DAPM_PGA("Mono Out", WM8940_POWER3, 7, 0, NULL, 0), | |
283 | SND_SOC_DAPM_OUTPUT("MONOOUT"), | |
284 | SND_SOC_DAPM_OUTPUT("SPKOUTP"), | |
285 | SND_SOC_DAPM_OUTPUT("SPKOUTN"), | |
286 | ||
287 | SND_SOC_DAPM_PGA("Aux Input", WM8940_POWER1, 6, 0, NULL, 0), | |
288 | SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8940_POWER2, 0, 0), | |
289 | SND_SOC_DAPM_MIXER("Mic PGA", WM8940_POWER2, 2, 0, | |
290 | &wm8940_micpga_controls[0], | |
291 | ARRAY_SIZE(wm8940_micpga_controls)), | |
292 | SND_SOC_DAPM_MIXER("Boost Mixer", WM8940_POWER2, 4, 0, | |
293 | &wm8940_input_boost_controls[0], | |
294 | ARRAY_SIZE(wm8940_input_boost_controls)), | |
295 | SND_SOC_DAPM_MICBIAS("Mic Bias", WM8940_POWER1, 4, 0), | |
296 | ||
297 | SND_SOC_DAPM_INPUT("MICN"), | |
298 | SND_SOC_DAPM_INPUT("MICP"), | |
299 | SND_SOC_DAPM_INPUT("AUX"), | |
300 | }; | |
301 | ||
6435e5be | 302 | static const struct snd_soc_dapm_route wm8940_dapm_routes[] = { |
0b5e92c5 JC |
303 | /* Mono output mixer */ |
304 | {"Mono Mixer", "PCM Playback Switch", "DAC"}, | |
305 | {"Mono Mixer", "Aux Playback Switch", "Aux Input"}, | |
306 | {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"}, | |
307 | ||
308 | /* Speaker output mixer */ | |
309 | {"Speaker Mixer", "PCM Playback Switch", "DAC"}, | |
310 | {"Speaker Mixer", "Aux Playback Switch", "Aux Input"}, | |
311 | {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"}, | |
312 | ||
313 | /* Outputs */ | |
314 | {"Mono Out", NULL, "Mono Mixer"}, | |
315 | {"MONOOUT", NULL, "Mono Out"}, | |
316 | {"SpkN Out", NULL, "Speaker Mixer"}, | |
317 | {"SpkP Out", NULL, "Speaker Mixer"}, | |
318 | {"SPKOUTN", NULL, "SpkN Out"}, | |
319 | {"SPKOUTP", NULL, "SpkP Out"}, | |
320 | ||
321 | /* Microphone PGA */ | |
322 | {"Mic PGA", "MICN Switch", "MICN"}, | |
323 | {"Mic PGA", "MICP Switch", "MICP"}, | |
324 | {"Mic PGA", "AUX Switch", "AUX"}, | |
325 | ||
326 | /* Boost Mixer */ | |
327 | {"Boost Mixer", "Mic PGA Switch", "Mic PGA"}, | |
328 | {"Boost Mixer", "Mic Volume", "MICP"}, | |
329 | {"Boost Mixer", "Aux Volume", "Aux Input"}, | |
330 | ||
331 | {"ADC", NULL, "Boost Mixer"}, | |
332 | }; | |
333 | ||
78e89b82 | 334 | #define wm8940_reset(c) snd_soc_component_write(c, WM8940_SOFTRESET, 0); |
0b5e92c5 JC |
335 | |
336 | static int wm8940_set_dai_fmt(struct snd_soc_dai *codec_dai, | |
337 | unsigned int fmt) | |
338 | { | |
78e89b82 | 339 | struct snd_soc_component *component = codec_dai->component; |
6d75dfc3 KM |
340 | u16 iface = snd_soc_component_read(component, WM8940_IFACE) & 0xFE67; |
341 | u16 clk = snd_soc_component_read(component, WM8940_CLOCK) & 0x1fe; | |
0b5e92c5 JC |
342 | |
343 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
344 | case SND_SOC_DAIFMT_CBM_CFM: | |
345 | clk |= 1; | |
346 | break; | |
347 | case SND_SOC_DAIFMT_CBS_CFS: | |
348 | break; | |
349 | default: | |
350 | return -EINVAL; | |
351 | } | |
78e89b82 | 352 | snd_soc_component_write(component, WM8940_CLOCK, clk); |
0b5e92c5 JC |
353 | |
354 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
355 | case SND_SOC_DAIFMT_I2S: | |
356 | iface |= (2 << 3); | |
357 | break; | |
358 | case SND_SOC_DAIFMT_LEFT_J: | |
359 | iface |= (1 << 3); | |
360 | break; | |
361 | case SND_SOC_DAIFMT_RIGHT_J: | |
362 | break; | |
363 | case SND_SOC_DAIFMT_DSP_A: | |
364 | iface |= (3 << 3); | |
365 | break; | |
366 | case SND_SOC_DAIFMT_DSP_B: | |
367 | iface |= (3 << 3) | (1 << 7); | |
368 | break; | |
369 | } | |
370 | ||
371 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
372 | case SND_SOC_DAIFMT_NB_NF: | |
373 | break; | |
374 | case SND_SOC_DAIFMT_NB_IF: | |
375 | iface |= (1 << 7); | |
376 | break; | |
377 | case SND_SOC_DAIFMT_IB_NF: | |
378 | iface |= (1 << 8); | |
379 | break; | |
380 | case SND_SOC_DAIFMT_IB_IF: | |
381 | iface |= (1 << 8) | (1 << 7); | |
382 | break; | |
383 | } | |
384 | ||
78e89b82 | 385 | snd_soc_component_write(component, WM8940_IFACE, iface); |
0b5e92c5 JC |
386 | |
387 | return 0; | |
388 | } | |
389 | ||
390 | static int wm8940_i2s_hw_params(struct snd_pcm_substream *substream, | |
391 | struct snd_pcm_hw_params *params, | |
392 | struct snd_soc_dai *dai) | |
393 | { | |
78e89b82 | 394 | struct snd_soc_component *component = dai->component; |
6d75dfc3 KM |
395 | u16 iface = snd_soc_component_read(component, WM8940_IFACE) & 0xFD9F; |
396 | u16 addcntrl = snd_soc_component_read(component, WM8940_ADDCNTRL) & 0xFFF1; | |
397 | u16 companding = snd_soc_component_read(component, | |
0b5e92c5 JC |
398 | WM8940_COMPANDINGCTL) & 0xFFDF; |
399 | int ret; | |
400 | ||
401 | /* LoutR control */ | |
402 | if (substream->stream == SNDRV_PCM_STREAM_CAPTURE | |
403 | && params_channels(params) == 2) | |
404 | iface |= (1 << 9); | |
405 | ||
406 | switch (params_rate(params)) { | |
b3172f22 | 407 | case 8000: |
0b5e92c5 JC |
408 | addcntrl |= (0x5 << 1); |
409 | break; | |
b3172f22 | 410 | case 11025: |
0b5e92c5 JC |
411 | addcntrl |= (0x4 << 1); |
412 | break; | |
b3172f22 | 413 | case 16000: |
0b5e92c5 JC |
414 | addcntrl |= (0x3 << 1); |
415 | break; | |
b3172f22 | 416 | case 22050: |
0b5e92c5 JC |
417 | addcntrl |= (0x2 << 1); |
418 | break; | |
b3172f22 | 419 | case 32000: |
0b5e92c5 JC |
420 | addcntrl |= (0x1 << 1); |
421 | break; | |
b3172f22 GL |
422 | case 44100: |
423 | case 48000: | |
0b5e92c5 JC |
424 | break; |
425 | } | |
78e89b82 | 426 | ret = snd_soc_component_write(component, WM8940_ADDCNTRL, addcntrl); |
0b5e92c5 JC |
427 | if (ret) |
428 | goto error_ret; | |
429 | ||
74b24c38 MB |
430 | switch (params_width(params)) { |
431 | case 8: | |
0b5e92c5 JC |
432 | companding = companding | (1 << 5); |
433 | break; | |
74b24c38 | 434 | case 16: |
0b5e92c5 | 435 | break; |
74b24c38 | 436 | case 20: |
0b5e92c5 JC |
437 | iface |= (1 << 5); |
438 | break; | |
74b24c38 | 439 | case 24: |
0b5e92c5 JC |
440 | iface |= (2 << 5); |
441 | break; | |
74b24c38 | 442 | case 32: |
0b5e92c5 JC |
443 | iface |= (3 << 5); |
444 | break; | |
445 | } | |
78e89b82 | 446 | ret = snd_soc_component_write(component, WM8940_COMPANDINGCTL, companding); |
0b5e92c5 JC |
447 | if (ret) |
448 | goto error_ret; | |
78e89b82 | 449 | ret = snd_soc_component_write(component, WM8940_IFACE, iface); |
0b5e92c5 JC |
450 | |
451 | error_ret: | |
452 | return ret; | |
453 | } | |
454 | ||
26d3c16e | 455 | static int wm8940_mute(struct snd_soc_dai *dai, int mute, int direction) |
0b5e92c5 | 456 | { |
78e89b82 | 457 | struct snd_soc_component *component = dai->component; |
6d75dfc3 | 458 | u16 mute_reg = snd_soc_component_read(component, WM8940_DAC) & 0xffbf; |
0b5e92c5 JC |
459 | |
460 | if (mute) | |
461 | mute_reg |= 0x40; | |
462 | ||
78e89b82 | 463 | return snd_soc_component_write(component, WM8940_DAC, mute_reg); |
0b5e92c5 JC |
464 | } |
465 | ||
78e89b82 | 466 | static int wm8940_set_bias_level(struct snd_soc_component *component, |
0b5e92c5 JC |
467 | enum snd_soc_bias_level level) |
468 | { | |
78e89b82 | 469 | struct wm8940_priv *wm8940 = snd_soc_component_get_drvdata(component); |
0b5e92c5 | 470 | u16 val; |
6d75dfc3 | 471 | u16 pwr_reg = snd_soc_component_read(component, WM8940_POWER1) & 0x1F0; |
0b5e92c5 JC |
472 | int ret = 0; |
473 | ||
474 | switch (level) { | |
475 | case SND_SOC_BIAS_ON: | |
476 | /* ensure bufioen and biasen */ | |
477 | pwr_reg |= (1 << 2) | (1 << 3); | |
478 | /* Enable thermal shutdown */ | |
6d75dfc3 | 479 | val = snd_soc_component_read(component, WM8940_OUTPUTCTL); |
78e89b82 | 480 | ret = snd_soc_component_write(component, WM8940_OUTPUTCTL, val | 0x2); |
0b5e92c5 JC |
481 | if (ret) |
482 | break; | |
483 | /* set vmid to 75k */ | |
78e89b82 | 484 | ret = snd_soc_component_write(component, WM8940_POWER1, pwr_reg | 0x1); |
0b5e92c5 JC |
485 | break; |
486 | case SND_SOC_BIAS_PREPARE: | |
487 | /* ensure bufioen and biasen */ | |
488 | pwr_reg |= (1 << 2) | (1 << 3); | |
78e89b82 | 489 | ret = snd_soc_component_write(component, WM8940_POWER1, pwr_reg | 0x1); |
0b5e92c5 JC |
490 | break; |
491 | case SND_SOC_BIAS_STANDBY: | |
78e89b82 | 492 | if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { |
fbbf7fea | 493 | ret = regcache_sync(wm8940->regmap); |
788b6e8e | 494 | if (ret < 0) { |
78e89b82 | 495 | dev_err(component->dev, "Failed to sync cache: %d\n", ret); |
788b6e8e AL |
496 | return ret; |
497 | } | |
498 | } | |
499 | ||
0b5e92c5 JC |
500 | /* ensure bufioen and biasen */ |
501 | pwr_reg |= (1 << 2) | (1 << 3); | |
502 | /* set vmid to 300k for standby */ | |
78e89b82 | 503 | ret = snd_soc_component_write(component, WM8940_POWER1, pwr_reg | 0x2); |
0b5e92c5 JC |
504 | break; |
505 | case SND_SOC_BIAS_OFF: | |
78e89b82 | 506 | ret = snd_soc_component_write(component, WM8940_POWER1, pwr_reg); |
0b5e92c5 JC |
507 | break; |
508 | } | |
509 | ||
510 | return ret; | |
511 | } | |
512 | ||
513 | struct pll_ { | |
514 | unsigned int pre_scale:2; | |
515 | unsigned int n:4; | |
516 | unsigned int k; | |
517 | }; | |
518 | ||
519 | static struct pll_ pll_div; | |
520 | ||
521 | /* The size in bits of the pll divide multiplied by 10 | |
522 | * to allow rounding later */ | |
523 | #define FIXED_PLL_SIZE ((1 << 24) * 10) | |
524 | static void pll_factors(unsigned int target, unsigned int source) | |
525 | { | |
526 | unsigned long long Kpart; | |
527 | unsigned int K, Ndiv, Nmod; | |
528 | /* The left shift ist to avoid accuracy loss when right shifting */ | |
529 | Ndiv = target / source; | |
530 | ||
531 | if (Ndiv > 12) { | |
532 | source <<= 1; | |
533 | /* Multiply by 2 */ | |
534 | pll_div.pre_scale = 0; | |
535 | Ndiv = target / source; | |
536 | } else if (Ndiv < 3) { | |
537 | source >>= 2; | |
538 | /* Divide by 4 */ | |
539 | pll_div.pre_scale = 3; | |
540 | Ndiv = target / source; | |
541 | } else if (Ndiv < 6) { | |
542 | source >>= 1; | |
543 | /* divide by 2 */ | |
544 | pll_div.pre_scale = 2; | |
545 | Ndiv = target / source; | |
546 | } else | |
547 | pll_div.pre_scale = 1; | |
548 | ||
549 | if ((Ndiv < 6) || (Ndiv > 12)) | |
550 | printk(KERN_WARNING | |
551 | "WM8940 N value %d outwith recommended range!d\n", | |
552 | Ndiv); | |
553 | ||
554 | pll_div.n = Ndiv; | |
555 | Nmod = target % source; | |
556 | Kpart = FIXED_PLL_SIZE * (long long)Nmod; | |
557 | ||
558 | do_div(Kpart, source); | |
559 | ||
560 | K = Kpart & 0xFFFFFFFF; | |
561 | ||
562 | /* Check if we need to round */ | |
563 | if ((K % 10) >= 5) | |
564 | K += 5; | |
565 | ||
566 | /* Move down to proper range now rounding is done */ | |
567 | K /= 10; | |
568 | ||
569 | pll_div.k = K; | |
570 | } | |
571 | ||
572 | /* Untested at the moment */ | |
85488037 MB |
573 | static int wm8940_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id, |
574 | int source, unsigned int freq_in, unsigned int freq_out) | |
0b5e92c5 | 575 | { |
78e89b82 | 576 | struct snd_soc_component *component = codec_dai->component; |
0b5e92c5 JC |
577 | u16 reg; |
578 | ||
579 | /* Turn off PLL */ | |
6d75dfc3 | 580 | reg = snd_soc_component_read(component, WM8940_POWER1); |
78e89b82 | 581 | snd_soc_component_write(component, WM8940_POWER1, reg & 0x1df); |
0b5e92c5 JC |
582 | |
583 | if (freq_in == 0 || freq_out == 0) { | |
584 | /* Clock CODEC directly from MCLK */ | |
6d75dfc3 | 585 | reg = snd_soc_component_read(component, WM8940_CLOCK); |
78e89b82 | 586 | snd_soc_component_write(component, WM8940_CLOCK, reg & 0x0ff); |
0b5e92c5 | 587 | /* Pll power down */ |
78e89b82 | 588 | snd_soc_component_write(component, WM8940_PLLN, (1 << 7)); |
0b5e92c5 JC |
589 | return 0; |
590 | } | |
591 | ||
592 | /* Pll is followed by a frequency divide by 4 */ | |
593 | pll_factors(freq_out*4, freq_in); | |
594 | if (pll_div.k) | |
78e89b82 | 595 | snd_soc_component_write(component, WM8940_PLLN, |
0b5e92c5 JC |
596 | (pll_div.pre_scale << 4) | pll_div.n | (1 << 6)); |
597 | else /* No factional component */ | |
78e89b82 | 598 | snd_soc_component_write(component, WM8940_PLLN, |
0b5e92c5 | 599 | (pll_div.pre_scale << 4) | pll_div.n); |
78e89b82 KM |
600 | snd_soc_component_write(component, WM8940_PLLK1, pll_div.k >> 18); |
601 | snd_soc_component_write(component, WM8940_PLLK2, (pll_div.k >> 9) & 0x1ff); | |
602 | snd_soc_component_write(component, WM8940_PLLK3, pll_div.k & 0x1ff); | |
0b5e92c5 | 603 | /* Enable the PLL */ |
6d75dfc3 | 604 | reg = snd_soc_component_read(component, WM8940_POWER1); |
78e89b82 | 605 | snd_soc_component_write(component, WM8940_POWER1, reg | 0x020); |
0b5e92c5 JC |
606 | |
607 | /* Run CODEC from PLL instead of MCLK */ | |
6d75dfc3 | 608 | reg = snd_soc_component_read(component, WM8940_CLOCK); |
78e89b82 | 609 | snd_soc_component_write(component, WM8940_CLOCK, reg | 0x100); |
0b5e92c5 JC |
610 | |
611 | return 0; | |
612 | } | |
613 | ||
614 | static int wm8940_set_dai_sysclk(struct snd_soc_dai *codec_dai, | |
615 | int clk_id, unsigned int freq, int dir) | |
616 | { | |
78e89b82 KM |
617 | struct snd_soc_component *component = codec_dai->component; |
618 | struct wm8940_priv *wm8940 = snd_soc_component_get_drvdata(component); | |
0b5e92c5 JC |
619 | |
620 | switch (freq) { | |
621 | case 11289600: | |
622 | case 12000000: | |
623 | case 12288000: | |
624 | case 16934400: | |
625 | case 18432000: | |
626 | wm8940->sysclk = freq; | |
627 | return 0; | |
628 | } | |
629 | return -EINVAL; | |
630 | } | |
631 | ||
632 | static int wm8940_set_dai_clkdiv(struct snd_soc_dai *codec_dai, | |
633 | int div_id, int div) | |
634 | { | |
78e89b82 | 635 | struct snd_soc_component *component = codec_dai->component; |
0b5e92c5 JC |
636 | u16 reg; |
637 | int ret = 0; | |
638 | ||
639 | switch (div_id) { | |
640 | case WM8940_BCLKDIV: | |
6d75dfc3 | 641 | reg = snd_soc_component_read(component, WM8940_CLOCK) & 0xFFE3; |
78e89b82 | 642 | ret = snd_soc_component_write(component, WM8940_CLOCK, reg | (div << 2)); |
0b5e92c5 JC |
643 | break; |
644 | case WM8940_MCLKDIV: | |
6d75dfc3 | 645 | reg = snd_soc_component_read(component, WM8940_CLOCK) & 0xFF1F; |
78e89b82 | 646 | ret = snd_soc_component_write(component, WM8940_CLOCK, reg | (div << 5)); |
0b5e92c5 JC |
647 | break; |
648 | case WM8940_OPCLKDIV: | |
6d75dfc3 | 649 | reg = snd_soc_component_read(component, WM8940_GPIO) & 0xFFCF; |
78e89b82 | 650 | ret = snd_soc_component_write(component, WM8940_GPIO, reg | (div << 4)); |
0b5e92c5 JC |
651 | break; |
652 | } | |
653 | return ret; | |
654 | } | |
655 | ||
656 | #define WM8940_RATES SNDRV_PCM_RATE_8000_48000 | |
657 | ||
658 | #define WM8940_FORMATS (SNDRV_PCM_FMTBIT_S8 | \ | |
659 | SNDRV_PCM_FMTBIT_S16_LE | \ | |
660 | SNDRV_PCM_FMTBIT_S20_3LE | \ | |
661 | SNDRV_PCM_FMTBIT_S24_LE | \ | |
662 | SNDRV_PCM_FMTBIT_S32_LE) | |
663 | ||
85e7652d | 664 | static const struct snd_soc_dai_ops wm8940_dai_ops = { |
0b5e92c5 JC |
665 | .hw_params = wm8940_i2s_hw_params, |
666 | .set_sysclk = wm8940_set_dai_sysclk, | |
26d3c16e | 667 | .mute_stream = wm8940_mute, |
0b5e92c5 JC |
668 | .set_fmt = wm8940_set_dai_fmt, |
669 | .set_clkdiv = wm8940_set_dai_clkdiv, | |
670 | .set_pll = wm8940_set_dai_pll, | |
26d3c16e | 671 | .no_capture_mute = 1, |
0b5e92c5 JC |
672 | }; |
673 | ||
f0fba2ad LG |
674 | static struct snd_soc_dai_driver wm8940_dai = { |
675 | .name = "wm8940-hifi", | |
0b5e92c5 JC |
676 | .playback = { |
677 | .stream_name = "Playback", | |
678 | .channels_min = 1, | |
679 | .channels_max = 2, | |
680 | .rates = WM8940_RATES, | |
681 | .formats = WM8940_FORMATS, | |
682 | }, | |
683 | .capture = { | |
684 | .stream_name = "Capture", | |
685 | .channels_min = 1, | |
686 | .channels_max = 2, | |
687 | .rates = WM8940_RATES, | |
688 | .formats = WM8940_FORMATS, | |
689 | }, | |
690 | .ops = &wm8940_dai_ops, | |
07695752 | 691 | .symmetric_rate = 1, |
0b5e92c5 | 692 | }; |
0b5e92c5 | 693 | |
78e89b82 | 694 | static int wm8940_probe(struct snd_soc_component *component) |
0b5e92c5 | 695 | { |
78e89b82 | 696 | struct wm8940_setup_data *pdata = component->dev->platform_data; |
0b5e92c5 JC |
697 | int ret; |
698 | u16 reg; | |
0b5e92c5 | 699 | |
78e89b82 | 700 | ret = wm8940_reset(component); |
0b5e92c5 | 701 | if (ret < 0) { |
78e89b82 | 702 | dev_err(component->dev, "Failed to issue reset\n"); |
0b5e92c5 JC |
703 | return ret; |
704 | } | |
705 | ||
78e89b82 | 706 | snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY); |
0b5e92c5 | 707 | |
78e89b82 | 708 | ret = snd_soc_component_write(component, WM8940_POWER1, 0x180); |
0b5e92c5 JC |
709 | if (ret < 0) |
710 | return ret; | |
711 | ||
712 | if (!pdata) | |
78e89b82 | 713 | dev_warn(component->dev, "No platform data supplied\n"); |
0b5e92c5 | 714 | else { |
6d75dfc3 | 715 | reg = snd_soc_component_read(component, WM8940_OUTPUTCTL); |
78e89b82 | 716 | ret = snd_soc_component_write(component, WM8940_OUTPUTCTL, reg | pdata->vroi); |
0b5e92c5 JC |
717 | if (ret < 0) |
718 | return ret; | |
719 | } | |
720 | ||
f0fba2ad | 721 | return ret; |
0b5e92c5 JC |
722 | } |
723 | ||
78e89b82 KM |
724 | static const struct snd_soc_component_driver soc_component_dev_wm8940 = { |
725 | .probe = wm8940_probe, | |
726 | .set_bias_level = wm8940_set_bias_level, | |
727 | .controls = wm8940_snd_controls, | |
728 | .num_controls = ARRAY_SIZE(wm8940_snd_controls), | |
729 | .dapm_widgets = wm8940_dapm_widgets, | |
730 | .num_dapm_widgets = ARRAY_SIZE(wm8940_dapm_widgets), | |
731 | .dapm_routes = wm8940_dapm_routes, | |
732 | .num_dapm_routes = ARRAY_SIZE(wm8940_dapm_routes), | |
733 | .suspend_bias_off = 1, | |
734 | .idle_bias_on = 1, | |
735 | .use_pmdown_time = 1, | |
736 | .endianness = 1, | |
737 | .non_legacy_dai_naming = 1, | |
fbbf7fea MB |
738 | }; |
739 | ||
740 | static const struct regmap_config wm8940_regmap = { | |
741 | .reg_bits = 8, | |
742 | .val_bits = 16, | |
743 | ||
744 | .max_register = WM8940_MONOMIX, | |
745 | .reg_defaults = wm8940_reg_defaults, | |
746 | .num_reg_defaults = ARRAY_SIZE(wm8940_reg_defaults), | |
50c7a0ef | 747 | .cache_type = REGCACHE_RBTREE, |
fbbf7fea MB |
748 | |
749 | .readable_reg = wm8940_readable_register, | |
750 | .volatile_reg = wm8940_volatile_register, | |
f0fba2ad LG |
751 | }; |
752 | ||
7a79e94e BP |
753 | static int wm8940_i2c_probe(struct i2c_client *i2c, |
754 | const struct i2c_device_id *id) | |
0b5e92c5 JC |
755 | { |
756 | struct wm8940_priv *wm8940; | |
f0fba2ad | 757 | int ret; |
0b5e92c5 | 758 | |
42dad0d8 MB |
759 | wm8940 = devm_kzalloc(&i2c->dev, sizeof(struct wm8940_priv), |
760 | GFP_KERNEL); | |
0b5e92c5 JC |
761 | if (wm8940 == NULL) |
762 | return -ENOMEM; | |
763 | ||
fbbf7fea MB |
764 | wm8940->regmap = devm_regmap_init_i2c(i2c, &wm8940_regmap); |
765 | if (IS_ERR(wm8940->regmap)) | |
766 | return PTR_ERR(wm8940->regmap); | |
767 | ||
0b5e92c5 | 768 | i2c_set_clientdata(i2c, wm8940); |
0b5e92c5 | 769 | |
78e89b82 KM |
770 | ret = devm_snd_soc_register_component(&i2c->dev, |
771 | &soc_component_dev_wm8940, &wm8940_dai, 1); | |
42dad0d8 | 772 | |
db1e18de | 773 | return ret; |
0b5e92c5 JC |
774 | } |
775 | ||
0b5e92c5 JC |
776 | static const struct i2c_device_id wm8940_i2c_id[] = { |
777 | { "wm8940", 0 }, | |
778 | { } | |
779 | }; | |
780 | MODULE_DEVICE_TABLE(i2c, wm8940_i2c_id); | |
781 | ||
782 | static struct i2c_driver wm8940_i2c_driver = { | |
783 | .driver = { | |
091edccf | 784 | .name = "wm8940", |
0b5e92c5 | 785 | }, |
f0fba2ad | 786 | .probe = wm8940_i2c_probe, |
0b5e92c5 JC |
787 | .id_table = wm8940_i2c_id, |
788 | }; | |
789 | ||
794836b9 | 790 | module_i2c_driver(wm8940_i2c_driver); |
0b5e92c5 JC |
791 | |
792 | MODULE_DESCRIPTION("ASoC WM8940 driver"); | |
793 | MODULE_AUTHOR("Jonathan Cameron"); | |
794 | MODULE_LICENSE("GPL"); |