1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * nau8810.c -- NAU8810 ALSA Soc Audio driver
4 *
5 * Copyright 2016 Nuvoton Technology Corp.
6 *
7 * Author: David Lin <ctlin0@nuvoton.com>
8 *
9 * Based on WM8974.c
10 */
11
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
17 #include <linux/pm.h>
18 #include <linux/i2c.h>
19 #include <linux/regmap.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 "nau8810.h"
29
30 #define NAU_PLL_FREQ_MAX 100000000
31 #define NAU_PLL_FREQ_MIN 90000000
32 #define NAU_PLL_REF_MAX 33000000
33 #define NAU_PLL_REF_MIN 8000000
34 #define NAU_PLL_OPTOP_MIN 6
35
36
37 static const int nau8810_mclk_scaler[] = { 10, 15, 20, 30, 40, 60, 80, 120 };
38
39 static const struct reg_default nau8810_reg_defaults[] = {
40 { NAU8810_REG_POWER1, 0x0000 },
41 { NAU8810_REG_POWER2, 0x0000 },
42 { NAU8810_REG_POWER3, 0x0000 },
43 { NAU8810_REG_IFACE, 0x0050 },
44 { NAU8810_REG_COMP, 0x0000 },
45 { NAU8810_REG_CLOCK, 0x0140 },
46 { NAU8810_REG_SMPLR, 0x0000 },
47 { NAU8810_REG_DAC, 0x0000 },
48 { NAU8810_REG_DACGAIN, 0x00FF },
49 { NAU8810_REG_ADC, 0x0100 },
50 { NAU8810_REG_ADCGAIN, 0x00FF },
51 { NAU8810_REG_EQ1, 0x012C },
52 { NAU8810_REG_EQ2, 0x002C },
53 { NAU8810_REG_EQ3, 0x002C },
54 { NAU8810_REG_EQ4, 0x002C },
55 { NAU8810_REG_EQ5, 0x002C },
56 { NAU8810_REG_DACLIM1, 0x0032 },
57 { NAU8810_REG_DACLIM2, 0x0000 },
58 { NAU8810_REG_NOTCH1, 0x0000 },
59 { NAU8810_REG_NOTCH2, 0x0000 },
60 { NAU8810_REG_NOTCH3, 0x0000 },
61 { NAU8810_REG_NOTCH4, 0x0000 },
62 { NAU8810_REG_ALC1, 0x0038 },
63 { NAU8810_REG_ALC2, 0x000B },
64 { NAU8810_REG_ALC3, 0x0032 },
65 { NAU8810_REG_NOISEGATE, 0x0000 },
66 { NAU8810_REG_PLLN, 0x0008 },
67 { NAU8810_REG_PLLK1, 0x000C },
68 { NAU8810_REG_PLLK2, 0x0093 },
69 { NAU8810_REG_PLLK3, 0x00E9 },
70 { NAU8810_REG_ATTEN, 0x0000 },
71 { NAU8810_REG_INPUT_SIGNAL, 0x0003 },
72 { NAU8810_REG_PGAGAIN, 0x0010 },
73 { NAU8810_REG_ADCBOOST, 0x0100 },
74 { NAU8810_REG_OUTPUT, 0x0002 },
75 { NAU8810_REG_SPKMIX, 0x0001 },
76 { NAU8810_REG_SPKGAIN, 0x0039 },
77 { NAU8810_REG_MONOMIX, 0x0001 },
78 { NAU8810_REG_POWER4, 0x0000 },
79 { NAU8810_REG_TSLOTCTL1, 0x0000 },
80 { NAU8810_REG_TSLOTCTL2, 0x0020 },
81 { NAU8810_REG_DEVICE_REVID, 0x0000 },
82 { NAU8810_REG_I2C_DEVICEID, 0x001A },
83 { NAU8810_REG_ADDITIONID, 0x00CA },
84 { NAU8810_REG_RESERVE, 0x0124 },
85 { NAU8810_REG_OUTCTL, 0x0001 },
86 { NAU8810_REG_ALC1ENHAN1, 0x0010 },
87 { NAU8810_REG_ALC1ENHAN2, 0x0000 },
88 { NAU8810_REG_MISCCTL, 0x0000 },
89 { NAU8810_REG_OUTTIEOFF, 0x0000 },
90 { NAU8810_REG_AGCP2POUT, 0x0000 },
91 { NAU8810_REG_AGCPOUT, 0x0000 },
92 { NAU8810_REG_AMTCTL, 0x0000 },
93 { NAU8810_REG_OUTTIEOFFMAN, 0x0000 },
94 };
95
nau8810_readable_reg(struct device * dev,unsigned int reg)96 static bool nau8810_readable_reg(struct device *dev, unsigned int reg)
97 {
98 switch (reg) {
99 case NAU8810_REG_RESET ... NAU8810_REG_SMPLR:
100 case NAU8810_REG_DAC ... NAU8810_REG_DACGAIN:
101 case NAU8810_REG_ADC ... NAU8810_REG_ADCGAIN:
102 case NAU8810_REG_EQ1 ... NAU8810_REG_EQ5:
103 case NAU8810_REG_DACLIM1 ... NAU8810_REG_DACLIM2:
104 case NAU8810_REG_NOTCH1 ... NAU8810_REG_NOTCH4:
105 case NAU8810_REG_ALC1 ... NAU8810_REG_ATTEN:
106 case NAU8810_REG_INPUT_SIGNAL ... NAU8810_REG_PGAGAIN:
107 case NAU8810_REG_ADCBOOST:
108 case NAU8810_REG_OUTPUT ... NAU8810_REG_SPKMIX:
109 case NAU8810_REG_SPKGAIN:
110 case NAU8810_REG_MONOMIX:
111 case NAU8810_REG_POWER4 ... NAU8810_REG_TSLOTCTL2:
112 case NAU8810_REG_DEVICE_REVID ... NAU8810_REG_RESERVE:
113 case NAU8810_REG_OUTCTL ... NAU8810_REG_ALC1ENHAN2:
114 case NAU8810_REG_MISCCTL:
115 case NAU8810_REG_OUTTIEOFF ... NAU8810_REG_OUTTIEOFFMAN:
116 return true;
117 default:
118 return false;
119 }
120 }
121
nau8810_writeable_reg(struct device * dev,unsigned int reg)122 static bool nau8810_writeable_reg(struct device *dev, unsigned int reg)
123 {
124 switch (reg) {
125 case NAU8810_REG_RESET ... NAU8810_REG_SMPLR:
126 case NAU8810_REG_DAC ... NAU8810_REG_DACGAIN:
127 case NAU8810_REG_ADC ... NAU8810_REG_ADCGAIN:
128 case NAU8810_REG_EQ1 ... NAU8810_REG_EQ5:
129 case NAU8810_REG_DACLIM1 ... NAU8810_REG_DACLIM2:
130 case NAU8810_REG_NOTCH1 ... NAU8810_REG_NOTCH4:
131 case NAU8810_REG_ALC1 ... NAU8810_REG_ATTEN:
132 case NAU8810_REG_INPUT_SIGNAL ... NAU8810_REG_PGAGAIN:
133 case NAU8810_REG_ADCBOOST:
134 case NAU8810_REG_OUTPUT ... NAU8810_REG_SPKMIX:
135 case NAU8810_REG_SPKGAIN:
136 case NAU8810_REG_MONOMIX:
137 case NAU8810_REG_POWER4 ... NAU8810_REG_TSLOTCTL2:
138 case NAU8810_REG_OUTCTL ... NAU8810_REG_ALC1ENHAN2:
139 case NAU8810_REG_MISCCTL:
140 case NAU8810_REG_OUTTIEOFF ... NAU8810_REG_OUTTIEOFFMAN:
141 return true;
142 default:
143 return false;
144 }
145 }
146
nau8810_volatile_reg(struct device * dev,unsigned int reg)147 static bool nau8810_volatile_reg(struct device *dev, unsigned int reg)
148 {
149 switch (reg) {
150 case NAU8810_REG_RESET:
151 case NAU8810_REG_DEVICE_REVID ... NAU8810_REG_RESERVE:
152 return true;
153 default:
154 return false;
155 }
156 }
157
158 /* The EQ parameters get function is to get the 5 band equalizer control.
159 * The regmap raw read can't work here because regmap doesn't provide
160 * value format for value width of 9 bits. Therefore, the driver reads data
161 * from cache and makes value format according to the endianness of
162 * bytes type control element.
163 */
nau8810_eq_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)164 static int nau8810_eq_get(struct snd_kcontrol *kcontrol,
165 struct snd_ctl_elem_value *ucontrol)
166 {
167 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
168 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
169 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
170 int i, reg, reg_val;
171 u16 *val;
172
173 val = (u16 *)ucontrol->value.bytes.data;
174 reg = NAU8810_REG_EQ1;
175 for (i = 0; i < params->max / sizeof(u16); i++) {
176 regmap_read(nau8810->regmap, reg + i, ®_val);
177 /* conversion of 16-bit integers between native CPU format
178 * and big endian format
179 */
180 reg_val = cpu_to_be16(reg_val);
181 memcpy(val + i, ®_val, sizeof(reg_val));
182 }
183
184 return 0;
185 }
186
187 /* The EQ parameters put function is to make configuration of 5 band equalizer
188 * control. These configuration includes central frequency, equalizer gain,
189 * cut-off frequency, bandwidth control, and equalizer path.
190 * The regmap raw write can't work here because regmap doesn't provide
191 * register and value format for register with address 7 bits and value 9 bits.
192 * Therefore, the driver makes value format according to the endianness of
193 * bytes type control element and writes data to codec.
194 */
nau8810_eq_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)195 static int nau8810_eq_put(struct snd_kcontrol *kcontrol,
196 struct snd_ctl_elem_value *ucontrol)
197 {
198 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
199 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
200 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
201 void *data;
202 u16 *val, value;
203 int i, reg, ret;
204
205 data = kmemdup(ucontrol->value.bytes.data,
206 params->max, GFP_KERNEL | GFP_DMA);
207 if (!data)
208 return -ENOMEM;
209
210 val = (u16 *)data;
211 reg = NAU8810_REG_EQ1;
212 for (i = 0; i < params->max / sizeof(u16); i++) {
213 /* conversion of 16-bit integers between native CPU format
214 * and big endian format
215 */
216 value = be16_to_cpu(*(val + i));
217 ret = regmap_write(nau8810->regmap, reg + i, value);
218 if (ret) {
219 dev_err(component->dev, "EQ configuration fail, register: %x ret: %d\n",
220 reg + i, ret);
221 kfree(data);
222 return ret;
223 }
224 }
225 kfree(data);
226
227 return 0;
228 }
229
230 static const char * const nau8810_companding[] = {
231 "Off", "NC", "u-law", "A-law" };
232
233 static const struct soc_enum nau8810_companding_adc_enum =
234 SOC_ENUM_SINGLE(NAU8810_REG_COMP, NAU8810_ADCCM_SFT,
235 ARRAY_SIZE(nau8810_companding), nau8810_companding);
236
237 static const struct soc_enum nau8810_companding_dac_enum =
238 SOC_ENUM_SINGLE(NAU8810_REG_COMP, NAU8810_DACCM_SFT,
239 ARRAY_SIZE(nau8810_companding), nau8810_companding);
240
241 static const char * const nau8810_deemp[] = {
242 "None", "32kHz", "44.1kHz", "48kHz" };
243
244 static const struct soc_enum nau8810_deemp_enum =
245 SOC_ENUM_SINGLE(NAU8810_REG_DAC, NAU8810_DEEMP_SFT,
246 ARRAY_SIZE(nau8810_deemp), nau8810_deemp);
247
248 static const char * const nau8810_eqmode[] = {"Capture", "Playback" };
249
250 static const struct soc_enum nau8810_eqmode_enum =
251 SOC_ENUM_SINGLE(NAU8810_REG_EQ1, NAU8810_EQM_SFT,
252 ARRAY_SIZE(nau8810_eqmode), nau8810_eqmode);
253
254 static const char * const nau8810_alc[] = {"Normal", "Limiter" };
255
256 static const struct soc_enum nau8810_alc_enum =
257 SOC_ENUM_SINGLE(NAU8810_REG_ALC3, NAU8810_ALCM_SFT,
258 ARRAY_SIZE(nau8810_alc), nau8810_alc);
259
260 static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1);
261 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
262 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0);
263 static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0);
264
265 static const struct snd_kcontrol_new nau8810_snd_controls[] = {
266 SOC_ENUM("ADC Companding", nau8810_companding_adc_enum),
267 SOC_ENUM("DAC Companding", nau8810_companding_dac_enum),
268 SOC_ENUM("DAC De-emphasis", nau8810_deemp_enum),
269
270 SOC_ENUM("EQ Function", nau8810_eqmode_enum),
271 SND_SOC_BYTES_EXT("EQ Parameters", 10,
272 nau8810_eq_get, nau8810_eq_put),
273
274 SOC_SINGLE("DAC Inversion Switch", NAU8810_REG_DAC,
275 NAU8810_DACPL_SFT, 1, 0),
276 SOC_SINGLE_TLV("Playback Volume", NAU8810_REG_DACGAIN,
277 NAU8810_DACGAIN_SFT, 0xff, 0, digital_tlv),
278
279 SOC_SINGLE("High Pass Filter Switch", NAU8810_REG_ADC,
280 NAU8810_HPFEN_SFT, 1, 0),
281 SOC_SINGLE("High Pass Cut Off", NAU8810_REG_ADC,
282 NAU8810_HPF_SFT, 0x7, 0),
283
284 SOC_SINGLE("ADC Inversion Switch", NAU8810_REG_ADC,
285 NAU8810_ADCPL_SFT, 1, 0),
286 SOC_SINGLE_TLV("Capture Volume", NAU8810_REG_ADCGAIN,
287 NAU8810_ADCGAIN_SFT, 0xff, 0, digital_tlv),
288
289 SOC_SINGLE_TLV("EQ1 Volume", NAU8810_REG_EQ1,
290 NAU8810_EQ1GC_SFT, 0x18, 1, eq_tlv),
291 SOC_SINGLE_TLV("EQ2 Volume", NAU8810_REG_EQ2,
292 NAU8810_EQ2GC_SFT, 0x18, 1, eq_tlv),
293 SOC_SINGLE_TLV("EQ3 Volume", NAU8810_REG_EQ3,
294 NAU8810_EQ3GC_SFT, 0x18, 1, eq_tlv),
295 SOC_SINGLE_TLV("EQ4 Volume", NAU8810_REG_EQ4,
296 NAU8810_EQ4GC_SFT, 0x18, 1, eq_tlv),
297 SOC_SINGLE_TLV("EQ5 Volume", NAU8810_REG_EQ5,
298 NAU8810_EQ5GC_SFT, 0x18, 1, eq_tlv),
299
300 SOC_SINGLE("DAC Limiter Switch", NAU8810_REG_DACLIM1,
301 NAU8810_DACLIMEN_SFT, 1, 0),
302 SOC_SINGLE("DAC Limiter Decay", NAU8810_REG_DACLIM1,
303 NAU8810_DACLIMDCY_SFT, 0xf, 0),
304 SOC_SINGLE("DAC Limiter Attack", NAU8810_REG_DACLIM1,
305 NAU8810_DACLIMATK_SFT, 0xf, 0),
306 SOC_SINGLE("DAC Limiter Threshold", NAU8810_REG_DACLIM2,
307 NAU8810_DACLIMTHL_SFT, 0x7, 0),
308 SOC_SINGLE("DAC Limiter Boost", NAU8810_REG_DACLIM2,
309 NAU8810_DACLIMBST_SFT, 0xf, 0),
310
311 SOC_ENUM("ALC Mode", nau8810_alc_enum),
312 SOC_SINGLE("ALC Enable Switch", NAU8810_REG_ALC1,
313 NAU8810_ALCEN_SFT, 1, 0),
314 SOC_SINGLE("ALC Max Volume", NAU8810_REG_ALC1,
315 NAU8810_ALCMXGAIN_SFT, 0x7, 0),
316 SOC_SINGLE("ALC Min Volume", NAU8810_REG_ALC1,
317 NAU8810_ALCMINGAIN_SFT, 0x7, 0),
318 SOC_SINGLE("ALC ZC Switch", NAU8810_REG_ALC2,
319 NAU8810_ALCZC_SFT, 1, 0),
320 SOC_SINGLE("ALC Hold", NAU8810_REG_ALC2,
321 NAU8810_ALCHT_SFT, 0xf, 0),
322 SOC_SINGLE("ALC Target", NAU8810_REG_ALC2,
323 NAU8810_ALCSL_SFT, 0xf, 0),
324 SOC_SINGLE("ALC Decay", NAU8810_REG_ALC3,
325 NAU8810_ALCDCY_SFT, 0xf, 0),
326 SOC_SINGLE("ALC Attack", NAU8810_REG_ALC3,
327 NAU8810_ALCATK_SFT, 0xf, 0),
328 SOC_SINGLE("ALC Noise Gate Switch", NAU8810_REG_NOISEGATE,
329 NAU8810_ALCNEN_SFT, 1, 0),
330 SOC_SINGLE("ALC Noise Gate Threshold", NAU8810_REG_NOISEGATE,
331 NAU8810_ALCNTH_SFT, 0x7, 0),
332
333 SOC_SINGLE("PGA ZC Switch", NAU8810_REG_PGAGAIN,
334 NAU8810_PGAZC_SFT, 1, 0),
335 SOC_SINGLE_TLV("PGA Volume", NAU8810_REG_PGAGAIN,
336 NAU8810_PGAGAIN_SFT, 0x3f, 0, inpga_tlv),
337
338 SOC_SINGLE("Speaker ZC Switch", NAU8810_REG_SPKGAIN,
339 NAU8810_SPKZC_SFT, 1, 0),
340 SOC_SINGLE("Speaker Mute Switch", NAU8810_REG_SPKGAIN,
341 NAU8810_SPKMT_SFT, 1, 0),
342 SOC_SINGLE_TLV("Speaker Volume", NAU8810_REG_SPKGAIN,
343 NAU8810_SPKGAIN_SFT, 0x3f, 0, spk_tlv),
344
345 SOC_SINGLE("Capture Boost(+20dB)", NAU8810_REG_ADCBOOST,
346 NAU8810_PGABST_SFT, 1, 0),
347 SOC_SINGLE("Mono Mute Switch", NAU8810_REG_MONOMIX,
348 NAU8810_MOUTMXMT_SFT, 1, 0),
349
350 SOC_SINGLE("DAC Oversampling Rate(128x) Switch", NAU8810_REG_DAC,
351 NAU8810_DACOS_SFT, 1, 0),
352 SOC_SINGLE("ADC Oversampling Rate(128x) Switch", NAU8810_REG_ADC,
353 NAU8810_ADCOS_SFT, 1, 0),
354 };
355
356 /* Speaker Output Mixer */
357 static const struct snd_kcontrol_new nau8810_speaker_mixer_controls[] = {
358 SOC_DAPM_SINGLE("AUX Bypass Switch", NAU8810_REG_SPKMIX,
359 NAU8810_AUXSPK_SFT, 1, 0),
360 SOC_DAPM_SINGLE("Line Bypass Switch", NAU8810_REG_SPKMIX,
361 NAU8810_BYPSPK_SFT, 1, 0),
362 SOC_DAPM_SINGLE("PCM Playback Switch", NAU8810_REG_SPKMIX,
363 NAU8810_DACSPK_SFT, 1, 0),
364 };
365
366 /* Mono Output Mixer */
367 static const struct snd_kcontrol_new nau8810_mono_mixer_controls[] = {
368 SOC_DAPM_SINGLE("AUX Bypass Switch", NAU8810_REG_MONOMIX,
369 NAU8810_AUXMOUT_SFT, 1, 0),
370 SOC_DAPM_SINGLE("Line Bypass Switch", NAU8810_REG_MONOMIX,
371 NAU8810_BYPMOUT_SFT, 1, 0),
372 SOC_DAPM_SINGLE("PCM Playback Switch", NAU8810_REG_MONOMIX,
373 NAU8810_DACMOUT_SFT, 1, 0),
374 };
375
376 /* PGA Mute */
377 static const struct snd_kcontrol_new nau8810_pgaboost_mixer_controls[] = {
378 SOC_DAPM_SINGLE("AUX PGA Switch", NAU8810_REG_ADCBOOST,
379 NAU8810_AUXBSTGAIN_SFT, 0x7, 0),
380 SOC_DAPM_SINGLE("PGA Mute Switch", NAU8810_REG_PGAGAIN,
381 NAU8810_PGAMT_SFT, 1, 1),
382 SOC_DAPM_SINGLE("PMIC PGA Switch", NAU8810_REG_ADCBOOST,
383 NAU8810_PMICBSTGAIN_SFT, 0x7, 0),
384 };
385
386 /* Input PGA */
387 static const struct snd_kcontrol_new nau8810_inpga[] = {
388 SOC_DAPM_SINGLE("AUX Switch", NAU8810_REG_INPUT_SIGNAL,
389 NAU8810_AUXPGA_SFT, 1, 0),
390 SOC_DAPM_SINGLE("MicN Switch", NAU8810_REG_INPUT_SIGNAL,
391 NAU8810_NMICPGA_SFT, 1, 0),
392 SOC_DAPM_SINGLE("MicP Switch", NAU8810_REG_INPUT_SIGNAL,
393 NAU8810_PMICPGA_SFT, 1, 0),
394 };
395
396 /* Loopback Switch */
397 static const struct snd_kcontrol_new nau8810_loopback =
398 SOC_DAPM_SINGLE("Switch", NAU8810_REG_COMP,
399 NAU8810_ADDAP_SFT, 1, 0);
400
check_mclk_select_pll(struct snd_soc_dapm_widget * source,struct snd_soc_dapm_widget * sink)401 static int check_mclk_select_pll(struct snd_soc_dapm_widget *source,
402 struct snd_soc_dapm_widget *sink)
403 {
404 struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
405 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
406 unsigned int value;
407
408 regmap_read(nau8810->regmap, NAU8810_REG_CLOCK, &value);
409 return (value & NAU8810_CLKM_MASK);
410 }
411
check_mic_enabled(struct snd_soc_dapm_widget * source,struct snd_soc_dapm_widget * sink)412 static int check_mic_enabled(struct snd_soc_dapm_widget *source,
413 struct snd_soc_dapm_widget *sink)
414 {
415 struct snd_soc_component *component =
416 snd_soc_dapm_to_component(source->dapm);
417 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
418 unsigned int value;
419
420 regmap_read(nau8810->regmap, NAU8810_REG_INPUT_SIGNAL, &value);
421 if (value & NAU8810_PMICPGA_EN || value & NAU8810_NMICPGA_EN)
422 return 1;
423 regmap_read(nau8810->regmap, NAU8810_REG_ADCBOOST, &value);
424 if (value & NAU8810_PMICBSTGAIN_MASK)
425 return 1;
426 return 0;
427 }
428
429 static const struct snd_soc_dapm_widget nau8810_dapm_widgets[] = {
430 SND_SOC_DAPM_MIXER("Speaker Mixer", NAU8810_REG_POWER3,
431 NAU8810_SPKMX_EN_SFT, 0, &nau8810_speaker_mixer_controls[0],
432 ARRAY_SIZE(nau8810_speaker_mixer_controls)),
433 SND_SOC_DAPM_MIXER("Mono Mixer", NAU8810_REG_POWER3,
434 NAU8810_MOUTMX_EN_SFT, 0, &nau8810_mono_mixer_controls[0],
435 ARRAY_SIZE(nau8810_mono_mixer_controls)),
436 SND_SOC_DAPM_DAC("DAC", "Playback", NAU8810_REG_POWER3,
437 NAU8810_DAC_EN_SFT, 0),
438 SND_SOC_DAPM_ADC("ADC", "Capture", NAU8810_REG_POWER2,
439 NAU8810_ADC_EN_SFT, 0),
440 SND_SOC_DAPM_PGA("SpkN Out", NAU8810_REG_POWER3,
441 NAU8810_NSPK_EN_SFT, 0, NULL, 0),
442 SND_SOC_DAPM_PGA("SpkP Out", NAU8810_REG_POWER3,
443 NAU8810_PSPK_EN_SFT, 0, NULL, 0),
444 SND_SOC_DAPM_PGA("Mono Out", NAU8810_REG_POWER3,
445 NAU8810_MOUT_EN_SFT, 0, NULL, 0),
446
447 SND_SOC_DAPM_MIXER("Input PGA", NAU8810_REG_POWER2,
448 NAU8810_PGA_EN_SFT, 0, nau8810_inpga,
449 ARRAY_SIZE(nau8810_inpga)),
450 SND_SOC_DAPM_MIXER("Input Boost Stage", NAU8810_REG_POWER2,
451 NAU8810_BST_EN_SFT, 0, nau8810_pgaboost_mixer_controls,
452 ARRAY_SIZE(nau8810_pgaboost_mixer_controls)),
453 SND_SOC_DAPM_PGA("AUX Input", NAU8810_REG_POWER1,
454 NAU8810_AUX_EN_SFT, 0, NULL, 0),
455
456 SND_SOC_DAPM_SUPPLY("Mic Bias", NAU8810_REG_POWER1,
457 NAU8810_MICBIAS_EN_SFT, 0, NULL, 0),
458 SND_SOC_DAPM_SUPPLY("PLL", NAU8810_REG_POWER1,
459 NAU8810_PLL_EN_SFT, 0, NULL, 0),
460
461 SND_SOC_DAPM_SWITCH("Digital Loopback", SND_SOC_NOPM, 0, 0,
462 &nau8810_loopback),
463
464 SND_SOC_DAPM_INPUT("AUX"),
465 SND_SOC_DAPM_INPUT("MICN"),
466 SND_SOC_DAPM_INPUT("MICP"),
467 SND_SOC_DAPM_OUTPUT("MONOOUT"),
468 SND_SOC_DAPM_OUTPUT("SPKOUTP"),
469 SND_SOC_DAPM_OUTPUT("SPKOUTN"),
470 };
471
472 static const struct snd_soc_dapm_route nau8810_dapm_routes[] = {
473 {"DAC", NULL, "PLL", check_mclk_select_pll},
474
475 /* Mono output mixer */
476 {"Mono Mixer", "AUX Bypass Switch", "AUX Input"},
477 {"Mono Mixer", "PCM Playback Switch", "DAC"},
478 {"Mono Mixer", "Line Bypass Switch", "Input Boost Stage"},
479
480 /* Speaker output mixer */
481 {"Speaker Mixer", "AUX Bypass Switch", "AUX Input"},
482 {"Speaker Mixer", "PCM Playback Switch", "DAC"},
483 {"Speaker Mixer", "Line Bypass Switch", "Input Boost Stage"},
484
485 /* Outputs */
486 {"Mono Out", NULL, "Mono Mixer"},
487 {"MONOOUT", NULL, "Mono Out"},
488 {"SpkN Out", NULL, "Speaker Mixer"},
489 {"SpkP Out", NULL, "Speaker Mixer"},
490 {"SPKOUTN", NULL, "SpkN Out"},
491 {"SPKOUTP", NULL, "SpkP Out"},
492
493 /* Input Boost Stage */
494 {"ADC", NULL, "Input Boost Stage"},
495 {"ADC", NULL, "PLL", check_mclk_select_pll},
496 {"Input Boost Stage", "AUX PGA Switch", "AUX Input"},
497 {"Input Boost Stage", "PGA Mute Switch", "Input PGA"},
498 {"Input Boost Stage", "PMIC PGA Switch", "MICP"},
499
500 /* Input PGA */
501 {"Input PGA", NULL, "Mic Bias", check_mic_enabled},
502 {"Input PGA", "AUX Switch", "AUX Input"},
503 {"Input PGA", "MicN Switch", "MICN"},
504 {"Input PGA", "MicP Switch", "MICP"},
505 {"AUX Input", NULL, "AUX"},
506
507 /* Digital Looptack */
508 {"Digital Loopback", "Switch", "ADC"},
509 {"DAC", NULL, "Digital Loopback"},
510 };
511
nau8810_set_sysclk(struct snd_soc_dai * dai,int clk_id,unsigned int freq,int dir)512 static int nau8810_set_sysclk(struct snd_soc_dai *dai,
513 int clk_id, unsigned int freq, int dir)
514 {
515 struct snd_soc_component *component = dai->component;
516 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
517
518 nau8810->clk_id = clk_id;
519 nau8810->sysclk = freq;
520 dev_dbg(nau8810->dev, "master sysclk %dHz, source %s\n",
521 freq, clk_id == NAU8810_SCLK_PLL ? "PLL" : "MCLK");
522
523 return 0;
524 }
525
nau8810_calc_pll(unsigned int pll_in,unsigned int fs,struct nau8810_pll * pll_param)526 static int nau8810_calc_pll(unsigned int pll_in,
527 unsigned int fs, struct nau8810_pll *pll_param)
528 {
529 u64 f2, f2_max, pll_ratio;
530 int i, scal_sel;
531
532 if (pll_in > NAU_PLL_REF_MAX || pll_in < NAU_PLL_REF_MIN)
533 return -EINVAL;
534
535 f2_max = 0;
536 scal_sel = ARRAY_SIZE(nau8810_mclk_scaler);
537 for (i = 0; i < ARRAY_SIZE(nau8810_mclk_scaler); i++) {
538 f2 = 256ULL * fs * 4 * nau8810_mclk_scaler[i];
539 f2 = div_u64(f2, 10);
540 if (f2 > NAU_PLL_FREQ_MIN && f2 < NAU_PLL_FREQ_MAX &&
541 f2_max < f2) {
542 f2_max = f2;
543 scal_sel = i;
544 }
545 }
546 if (ARRAY_SIZE(nau8810_mclk_scaler) == scal_sel)
547 return -EINVAL;
548 pll_param->mclk_scaler = scal_sel;
549 f2 = f2_max;
550
551 /* Calculate the PLL 4-bit integer input and the PLL 24-bit fractional
552 * input; round up the 24+4bit.
553 */
554 pll_ratio = div_u64(f2 << 28, pll_in);
555 pll_param->pre_factor = 0;
556 if (((pll_ratio >> 28) & 0xF) < NAU_PLL_OPTOP_MIN) {
557 pll_ratio <<= 1;
558 pll_param->pre_factor = 1;
559 }
560 pll_param->pll_int = (pll_ratio >> 28) & 0xF;
561 pll_param->pll_frac = ((pll_ratio & 0xFFFFFFF) >> 4);
562
563 return 0;
564 }
565
nau8810_set_pll(struct snd_soc_dai * codec_dai,int pll_id,int source,unsigned int freq_in,unsigned int freq_out)566 static int nau8810_set_pll(struct snd_soc_dai *codec_dai, int pll_id,
567 int source, unsigned int freq_in, unsigned int freq_out)
568 {
569 struct snd_soc_component *component = codec_dai->component;
570 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
571 struct regmap *map = nau8810->regmap;
572 struct nau8810_pll *pll_param = &nau8810->pll;
573 int ret, fs;
574
575 fs = freq_out / 256;
576 ret = nau8810_calc_pll(freq_in, fs, pll_param);
577 if (ret < 0) {
578 dev_err(nau8810->dev, "Unsupported input clock %d\n", freq_in);
579 return ret;
580 }
581 dev_info(nau8810->dev, "pll_int=%x pll_frac=%x mclk_scaler=%x pre_factor=%x\n",
582 pll_param->pll_int, pll_param->pll_frac, pll_param->mclk_scaler,
583 pll_param->pre_factor);
584
585 regmap_update_bits(map, NAU8810_REG_PLLN,
586 NAU8810_PLLMCLK_DIV2 | NAU8810_PLLN_MASK,
587 (pll_param->pre_factor ? NAU8810_PLLMCLK_DIV2 : 0) |
588 pll_param->pll_int);
589 regmap_write(map, NAU8810_REG_PLLK1,
590 (pll_param->pll_frac >> NAU8810_PLLK1_SFT) &
591 NAU8810_PLLK1_MASK);
592 regmap_write(map, NAU8810_REG_PLLK2,
593 (pll_param->pll_frac >> NAU8810_PLLK2_SFT) &
594 NAU8810_PLLK2_MASK);
595 regmap_write(map, NAU8810_REG_PLLK3,
596 pll_param->pll_frac & NAU8810_PLLK3_MASK);
597 regmap_update_bits(map, NAU8810_REG_CLOCK, NAU8810_MCLKSEL_MASK,
598 pll_param->mclk_scaler << NAU8810_MCLKSEL_SFT);
599 regmap_update_bits(map, NAU8810_REG_CLOCK,
600 NAU8810_CLKM_MASK, NAU8810_CLKM_PLL);
601
602 return 0;
603 }
604
nau8810_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)605 static int nau8810_set_dai_fmt(struct snd_soc_dai *codec_dai,
606 unsigned int fmt)
607 {
608 struct snd_soc_component *component = codec_dai->component;
609 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
610 u16 ctrl1_val = 0, ctrl2_val = 0;
611
612 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
613 case SND_SOC_DAIFMT_CBM_CFM:
614 ctrl2_val |= NAU8810_CLKIO_MASTER;
615 break;
616 case SND_SOC_DAIFMT_CBS_CFS:
617 break;
618 default:
619 return -EINVAL;
620 }
621
622 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
623 case SND_SOC_DAIFMT_I2S:
624 ctrl1_val |= NAU8810_AIFMT_I2S;
625 break;
626 case SND_SOC_DAIFMT_RIGHT_J:
627 break;
628 case SND_SOC_DAIFMT_LEFT_J:
629 ctrl1_val |= NAU8810_AIFMT_LEFT;
630 break;
631 case SND_SOC_DAIFMT_DSP_A:
632 ctrl1_val |= NAU8810_AIFMT_PCM_A;
633 break;
634 default:
635 return -EINVAL;
636 }
637
638 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
639 case SND_SOC_DAIFMT_NB_NF:
640 break;
641 case SND_SOC_DAIFMT_IB_IF:
642 ctrl1_val |= NAU8810_BCLKP_IB | NAU8810_FSP_IF;
643 break;
644 case SND_SOC_DAIFMT_IB_NF:
645 ctrl1_val |= NAU8810_BCLKP_IB;
646 break;
647 case SND_SOC_DAIFMT_NB_IF:
648 ctrl1_val |= NAU8810_FSP_IF;
649 break;
650 default:
651 return -EINVAL;
652 }
653
654 regmap_update_bits(nau8810->regmap, NAU8810_REG_IFACE,
655 NAU8810_AIFMT_MASK | NAU8810_FSP_IF |
656 NAU8810_BCLKP_IB, ctrl1_val);
657 regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK,
658 NAU8810_CLKIO_MASK, ctrl2_val);
659
660 return 0;
661 }
662
nau8810_mclk_clkdiv(struct nau8810 * nau8810,int rate)663 static int nau8810_mclk_clkdiv(struct nau8810 *nau8810, int rate)
664 {
665 int i, sclk, imclk = rate * 256, div = 0;
666
667 if (!nau8810->sysclk) {
668 dev_err(nau8810->dev, "Make mclk div configuration fail because of invalid system clock\n");
669 return -EINVAL;
670 }
671
672 /* Configure the master clock prescaler div to make system
673 * clock to approximate the internal master clock (IMCLK);
674 * and large or equal to IMCLK.
675 */
676 for (i = 1; i < ARRAY_SIZE(nau8810_mclk_scaler); i++) {
677 sclk = (nau8810->sysclk * 10) /
678 nau8810_mclk_scaler[i];
679 if (sclk < imclk)
680 break;
681 div = i;
682 }
683 dev_dbg(nau8810->dev,
684 "master clock prescaler %x for fs %d\n", div, rate);
685
686 /* master clock from MCLK and disable PLL */
687 regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK,
688 NAU8810_MCLKSEL_MASK, (div << NAU8810_MCLKSEL_SFT));
689 regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK,
690 NAU8810_CLKM_MASK, NAU8810_CLKM_MCLK);
691
692 return 0;
693 }
694
nau8810_pcm_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)695 static int nau8810_pcm_hw_params(struct snd_pcm_substream *substream,
696 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
697 {
698 struct snd_soc_component *component = dai->component;
699 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
700 int val_len = 0, val_rate = 0, ret = 0;
701 unsigned int ctrl_val, bclk_fs, bclk_div;
702
703 /* Select BCLK configuration if the codec as master. */
704 regmap_read(nau8810->regmap, NAU8810_REG_CLOCK, &ctrl_val);
705 if (ctrl_val & NAU8810_CLKIO_MASTER) {
706 /* get the bclk and fs ratio */
707 bclk_fs = snd_soc_params_to_bclk(params) / params_rate(params);
708 if (bclk_fs <= 32)
709 bclk_div = NAU8810_BCLKDIV_8;
710 else if (bclk_fs <= 64)
711 bclk_div = NAU8810_BCLKDIV_4;
712 else if (bclk_fs <= 128)
713 bclk_div = NAU8810_BCLKDIV_2;
714 else
715 return -EINVAL;
716 regmap_update_bits(nau8810->regmap, NAU8810_REG_CLOCK,
717 NAU8810_BCLKSEL_MASK, bclk_div);
718 }
719
720 switch (params_width(params)) {
721 case 16:
722 break;
723 case 20:
724 val_len |= NAU8810_WLEN_20;
725 break;
726 case 24:
727 val_len |= NAU8810_WLEN_24;
728 break;
729 case 32:
730 val_len |= NAU8810_WLEN_32;
731 break;
732 }
733
734 switch (params_rate(params)) {
735 case 8000:
736 val_rate |= NAU8810_SMPLR_8K;
737 break;
738 case 11025:
739 val_rate |= NAU8810_SMPLR_12K;
740 break;
741 case 16000:
742 val_rate |= NAU8810_SMPLR_16K;
743 break;
744 case 22050:
745 val_rate |= NAU8810_SMPLR_24K;
746 break;
747 case 32000:
748 val_rate |= NAU8810_SMPLR_32K;
749 break;
750 case 44100:
751 case 48000:
752 break;
753 }
754
755 regmap_update_bits(nau8810->regmap, NAU8810_REG_IFACE,
756 NAU8810_WLEN_MASK, val_len);
757 regmap_update_bits(nau8810->regmap, NAU8810_REG_SMPLR,
758 NAU8810_SMPLR_MASK, val_rate);
759
760 /* If the master clock is from MCLK, provide the runtime FS for driver
761 * to get the master clock prescaler configuration.
762 */
763 if (nau8810->clk_id == NAU8810_SCLK_MCLK) {
764 ret = nau8810_mclk_clkdiv(nau8810, params_rate(params));
765 if (ret < 0)
766 dev_err(nau8810->dev, "MCLK div configuration fail\n");
767 }
768
769 return ret;
770 }
771
nau8810_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)772 static int nau8810_set_bias_level(struct snd_soc_component *component,
773 enum snd_soc_bias_level level)
774 {
775 struct nau8810 *nau8810 = snd_soc_component_get_drvdata(component);
776 struct regmap *map = nau8810->regmap;
777
778 switch (level) {
779 case SND_SOC_BIAS_ON:
780 case SND_SOC_BIAS_PREPARE:
781 regmap_update_bits(map, NAU8810_REG_POWER1,
782 NAU8810_REFIMP_MASK, NAU8810_REFIMP_80K);
783 break;
784
785 case SND_SOC_BIAS_STANDBY:
786 regmap_update_bits(map, NAU8810_REG_POWER1,
787 NAU8810_IOBUF_EN | NAU8810_ABIAS_EN,
788 NAU8810_IOBUF_EN | NAU8810_ABIAS_EN);
789
790 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
791 regcache_sync(map);
792 regmap_update_bits(map, NAU8810_REG_POWER1,
793 NAU8810_REFIMP_MASK, NAU8810_REFIMP_3K);
794 mdelay(100);
795 }
796 regmap_update_bits(map, NAU8810_REG_POWER1,
797 NAU8810_REFIMP_MASK, NAU8810_REFIMP_300K);
798 break;
799
800 case SND_SOC_BIAS_OFF:
801 regmap_write(map, NAU8810_REG_POWER1, 0);
802 regmap_write(map, NAU8810_REG_POWER2, 0);
803 regmap_write(map, NAU8810_REG_POWER3, 0);
804 break;
805 }
806
807 return 0;
808 }
809
810
811 #define NAU8810_RATES (SNDRV_PCM_RATE_8000_48000)
812
813 #define NAU8810_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
814 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
815
816 static const struct snd_soc_dai_ops nau8810_ops = {
817 .hw_params = nau8810_pcm_hw_params,
818 .set_fmt = nau8810_set_dai_fmt,
819 .set_sysclk = nau8810_set_sysclk,
820 .set_pll = nau8810_set_pll,
821 };
822
823 static struct snd_soc_dai_driver nau8810_dai = {
824 .name = "nau8810-hifi",
825 .playback = {
826 .stream_name = "Playback",
827 .channels_min = 1,
828 .channels_max = 2, /* Only 1 channel of data */
829 .rates = NAU8810_RATES,
830 .formats = NAU8810_FORMATS,
831 },
832 .capture = {
833 .stream_name = "Capture",
834 .channels_min = 1,
835 .channels_max = 2, /* Only 1 channel of data */
836 .rates = NAU8810_RATES,
837 .formats = NAU8810_FORMATS,
838 },
839 .ops = &nau8810_ops,
840 .symmetric_rates = 1,
841 };
842
843 static const struct regmap_config nau8810_regmap_config = {
844 .reg_bits = 7,
845 .val_bits = 9,
846
847 .max_register = NAU8810_REG_MAX,
848 .readable_reg = nau8810_readable_reg,
849 .writeable_reg = nau8810_writeable_reg,
850 .volatile_reg = nau8810_volatile_reg,
851
852 .cache_type = REGCACHE_RBTREE,
853 .reg_defaults = nau8810_reg_defaults,
854 .num_reg_defaults = ARRAY_SIZE(nau8810_reg_defaults),
855 };
856
857 static const struct snd_soc_component_driver nau8810_component_driver = {
858 .set_bias_level = nau8810_set_bias_level,
859 .controls = nau8810_snd_controls,
860 .num_controls = ARRAY_SIZE(nau8810_snd_controls),
861 .dapm_widgets = nau8810_dapm_widgets,
862 .num_dapm_widgets = ARRAY_SIZE(nau8810_dapm_widgets),
863 .dapm_routes = nau8810_dapm_routes,
864 .num_dapm_routes = ARRAY_SIZE(nau8810_dapm_routes),
865 .suspend_bias_off = 1,
866 .idle_bias_on = 1,
867 .use_pmdown_time = 1,
868 .endianness = 1,
869 .non_legacy_dai_naming = 1,
870 };
871
nau8810_i2c_probe(struct i2c_client * i2c,const struct i2c_device_id * id)872 static int nau8810_i2c_probe(struct i2c_client *i2c,
873 const struct i2c_device_id *id)
874 {
875 struct device *dev = &i2c->dev;
876 struct nau8810 *nau8810 = dev_get_platdata(dev);
877
878 if (!nau8810) {
879 nau8810 = devm_kzalloc(dev, sizeof(*nau8810), GFP_KERNEL);
880 if (!nau8810)
881 return -ENOMEM;
882 }
883 i2c_set_clientdata(i2c, nau8810);
884
885 nau8810->regmap = devm_regmap_init_i2c(i2c, &nau8810_regmap_config);
886 if (IS_ERR(nau8810->regmap))
887 return PTR_ERR(nau8810->regmap);
888 nau8810->dev = dev;
889
890 regmap_write(nau8810->regmap, NAU8810_REG_RESET, 0x00);
891
892 return devm_snd_soc_register_component(dev,
893 &nau8810_component_driver, &nau8810_dai, 1);
894 }
895
896 static const struct i2c_device_id nau8810_i2c_id[] = {
897 { "nau8810", 0 },
898 { "nau8812", 0 },
899 { "nau8814", 0 },
900 { }
901 };
902 MODULE_DEVICE_TABLE(i2c, nau8810_i2c_id);
903
904 #ifdef CONFIG_OF
905 static const struct of_device_id nau8810_of_match[] = {
906 { .compatible = "nuvoton,nau8810", },
907 { .compatible = "nuvoton,nau8812", },
908 { .compatible = "nuvoton,nau8814", },
909 { }
910 };
911 MODULE_DEVICE_TABLE(of, nau8810_of_match);
912 #endif
913
914 static struct i2c_driver nau8810_i2c_driver = {
915 .driver = {
916 .name = "nau8810",
917 .of_match_table = of_match_ptr(nau8810_of_match),
918 },
919 .probe = nau8810_i2c_probe,
920 .id_table = nau8810_i2c_id,
921 };
922
923 module_i2c_driver(nau8810_i2c_driver);
924
925 MODULE_DESCRIPTION("ASoC NAU8810 driver");
926 MODULE_AUTHOR("David Lin <ctlin0@nuvoton.com>");
927 MODULE_LICENSE("GPL v2");
928
