1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // nau8822.c -- NAU8822 ALSA Soc Audio driver
4 //
5 // Copyright 2017 Nuvoton Technology Crop.
6 //
7 // Author: David Lin <ctlin0@nuvoton.com>
8 // Co-author: John Hsu <kchsu0@nuvoton.com>
9 // Co-author: Seven Li <wtli@nuvoton.com>
10 //
11 // Based on WM8974.c
12
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
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/regmap.h>
21 #include <linux/slab.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include <sound/initval.h>
27 #include <sound/tlv.h>
28 #include <asm/div64.h>
29 #include "nau8822.h"
30
31 #define NAU_PLL_FREQ_MAX 100000000
32 #define NAU_PLL_FREQ_MIN 90000000
33 #define NAU_PLL_REF_MAX 33000000
34 #define NAU_PLL_REF_MIN 8000000
35 #define NAU_PLL_OPTOP_MIN 6
36
37 static const int nau8822_mclk_scaler[] = { 10, 15, 20, 30, 40, 60, 80, 120 };
38
39 static const struct reg_default nau8822_reg_defaults[] = {
40 { NAU8822_REG_POWER_MANAGEMENT_1, 0x0000 },
41 { NAU8822_REG_POWER_MANAGEMENT_2, 0x0000 },
42 { NAU8822_REG_POWER_MANAGEMENT_3, 0x0000 },
43 { NAU8822_REG_AUDIO_INTERFACE, 0x0050 },
44 { NAU8822_REG_COMPANDING_CONTROL, 0x0000 },
45 { NAU8822_REG_CLOCKING, 0x0140 },
46 { NAU8822_REG_ADDITIONAL_CONTROL, 0x0000 },
47 { NAU8822_REG_GPIO_CONTROL, 0x0000 },
48 { NAU8822_REG_JACK_DETECT_CONTROL_1, 0x0000 },
49 { NAU8822_REG_DAC_CONTROL, 0x0000 },
50 { NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME, 0x00ff },
51 { NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 0x00ff },
52 { NAU8822_REG_JACK_DETECT_CONTROL_2, 0x0000 },
53 { NAU8822_REG_ADC_CONTROL, 0x0100 },
54 { NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME, 0x00ff },
55 { NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 0x00ff },
56 { NAU8822_REG_EQ1, 0x012c },
57 { NAU8822_REG_EQ2, 0x002c },
58 { NAU8822_REG_EQ3, 0x002c },
59 { NAU8822_REG_EQ4, 0x002c },
60 { NAU8822_REG_EQ5, 0x002c },
61 { NAU8822_REG_DAC_LIMITER_1, 0x0032 },
62 { NAU8822_REG_DAC_LIMITER_2, 0x0000 },
63 { NAU8822_REG_NOTCH_FILTER_1, 0x0000 },
64 { NAU8822_REG_NOTCH_FILTER_2, 0x0000 },
65 { NAU8822_REG_NOTCH_FILTER_3, 0x0000 },
66 { NAU8822_REG_NOTCH_FILTER_4, 0x0000 },
67 { NAU8822_REG_ALC_CONTROL_1, 0x0038 },
68 { NAU8822_REG_ALC_CONTROL_2, 0x000b },
69 { NAU8822_REG_ALC_CONTROL_3, 0x0032 },
70 { NAU8822_REG_NOISE_GATE, 0x0010 },
71 { NAU8822_REG_PLL_N, 0x0008 },
72 { NAU8822_REG_PLL_K1, 0x000c },
73 { NAU8822_REG_PLL_K2, 0x0093 },
74 { NAU8822_REG_PLL_K3, 0x00e9 },
75 { NAU8822_REG_3D_CONTROL, 0x0000 },
76 { NAU8822_REG_RIGHT_SPEAKER_CONTROL, 0x0000 },
77 { NAU8822_REG_INPUT_CONTROL, 0x0033 },
78 { NAU8822_REG_LEFT_INP_PGA_CONTROL, 0x0010 },
79 { NAU8822_REG_RIGHT_INP_PGA_CONTROL, 0x0010 },
80 { NAU8822_REG_LEFT_ADC_BOOST_CONTROL, 0x0100 },
81 { NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 0x0100 },
82 { NAU8822_REG_OUTPUT_CONTROL, 0x0002 },
83 { NAU8822_REG_LEFT_MIXER_CONTROL, 0x0001 },
84 { NAU8822_REG_RIGHT_MIXER_CONTROL, 0x0001 },
85 { NAU8822_REG_LHP_VOLUME, 0x0039 },
86 { NAU8822_REG_RHP_VOLUME, 0x0039 },
87 { NAU8822_REG_LSPKOUT_VOLUME, 0x0039 },
88 { NAU8822_REG_RSPKOUT_VOLUME, 0x0039 },
89 { NAU8822_REG_AUX2_MIXER, 0x0001 },
90 { NAU8822_REG_AUX1_MIXER, 0x0001 },
91 { NAU8822_REG_POWER_MANAGEMENT_4, 0x0000 },
92 { NAU8822_REG_LEFT_TIME_SLOT, 0x0000 },
93 { NAU8822_REG_MISC, 0x0020 },
94 { NAU8822_REG_RIGHT_TIME_SLOT, 0x0000 },
95 { NAU8822_REG_DEVICE_REVISION, 0x007f },
96 { NAU8822_REG_DEVICE_ID, 0x001a },
97 { NAU8822_REG_DAC_DITHER, 0x0114 },
98 { NAU8822_REG_ALC_ENHANCE_1, 0x0000 },
99 { NAU8822_REG_ALC_ENHANCE_2, 0x0000 },
100 { NAU8822_REG_192KHZ_SAMPLING, 0x0008 },
101 { NAU8822_REG_MISC_CONTROL, 0x0000 },
102 { NAU8822_REG_INPUT_TIEOFF, 0x0000 },
103 { NAU8822_REG_POWER_REDUCTION, 0x0000 },
104 { NAU8822_REG_AGC_PEAK2PEAK, 0x0000 },
105 { NAU8822_REG_AGC_PEAK_DETECT, 0x0000 },
106 { NAU8822_REG_AUTOMUTE_CONTROL, 0x0000 },
107 { NAU8822_REG_OUTPUT_TIEOFF, 0x0000 },
108 };
109
nau8822_readable_reg(struct device * dev,unsigned int reg)110 static bool nau8822_readable_reg(struct device *dev, unsigned int reg)
111 {
112 switch (reg) {
113 case NAU8822_REG_RESET ... NAU8822_REG_JACK_DETECT_CONTROL_1:
114 case NAU8822_REG_DAC_CONTROL ... NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME:
115 case NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME:
116 case NAU8822_REG_EQ1 ... NAU8822_REG_EQ5:
117 case NAU8822_REG_DAC_LIMITER_1 ... NAU8822_REG_DAC_LIMITER_2:
118 case NAU8822_REG_NOTCH_FILTER_1 ... NAU8822_REG_NOTCH_FILTER_4:
119 case NAU8822_REG_ALC_CONTROL_1 ...NAU8822_REG_PLL_K3:
120 case NAU8822_REG_3D_CONTROL:
121 case NAU8822_REG_RIGHT_SPEAKER_CONTROL:
122 case NAU8822_REG_INPUT_CONTROL ... NAU8822_REG_LEFT_ADC_BOOST_CONTROL:
123 case NAU8822_REG_RIGHT_ADC_BOOST_CONTROL ... NAU8822_REG_AUX1_MIXER:
124 case NAU8822_REG_POWER_MANAGEMENT_4 ... NAU8822_REG_DEVICE_ID:
125 case NAU8822_REG_DAC_DITHER:
126 case NAU8822_REG_ALC_ENHANCE_1 ... NAU8822_REG_MISC_CONTROL:
127 case NAU8822_REG_INPUT_TIEOFF ... NAU8822_REG_OUTPUT_TIEOFF:
128 return true;
129 default:
130 return false;
131 }
132 }
133
nau8822_writeable_reg(struct device * dev,unsigned int reg)134 static bool nau8822_writeable_reg(struct device *dev, unsigned int reg)
135 {
136 switch (reg) {
137 case NAU8822_REG_RESET ... NAU8822_REG_JACK_DETECT_CONTROL_1:
138 case NAU8822_REG_DAC_CONTROL ... NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME:
139 case NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME:
140 case NAU8822_REG_EQ1 ... NAU8822_REG_EQ5:
141 case NAU8822_REG_DAC_LIMITER_1 ... NAU8822_REG_DAC_LIMITER_2:
142 case NAU8822_REG_NOTCH_FILTER_1 ... NAU8822_REG_NOTCH_FILTER_4:
143 case NAU8822_REG_ALC_CONTROL_1 ...NAU8822_REG_PLL_K3:
144 case NAU8822_REG_3D_CONTROL:
145 case NAU8822_REG_RIGHT_SPEAKER_CONTROL:
146 case NAU8822_REG_INPUT_CONTROL ... NAU8822_REG_LEFT_ADC_BOOST_CONTROL:
147 case NAU8822_REG_RIGHT_ADC_BOOST_CONTROL ... NAU8822_REG_AUX1_MIXER:
148 case NAU8822_REG_POWER_MANAGEMENT_4 ... NAU8822_REG_DEVICE_ID:
149 case NAU8822_REG_DAC_DITHER:
150 case NAU8822_REG_ALC_ENHANCE_1 ... NAU8822_REG_MISC_CONTROL:
151 case NAU8822_REG_INPUT_TIEOFF ... NAU8822_REG_OUTPUT_TIEOFF:
152 return true;
153 default:
154 return false;
155 }
156 }
157
nau8822_volatile(struct device * dev,unsigned int reg)158 static bool nau8822_volatile(struct device *dev, unsigned int reg)
159 {
160 switch (reg) {
161 case NAU8822_REG_RESET:
162 case NAU8822_REG_DEVICE_REVISION:
163 case NAU8822_REG_DEVICE_ID:
164 case NAU8822_REG_AGC_PEAK2PEAK:
165 case NAU8822_REG_AGC_PEAK_DETECT:
166 case NAU8822_REG_AUTOMUTE_CONTROL:
167 return true;
168 default:
169 return false;
170 }
171 }
172
173 /* The EQ parameters get function is to get the 5 band equalizer control.
174 * The regmap raw read can't work here because regmap doesn't provide
175 * value format for value width of 9 bits. Therefore, the driver reads data
176 * from cache and makes value format according to the endianness of
177 * bytes type control element.
178 */
nau8822_eq_get(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)179 static int nau8822_eq_get(struct snd_kcontrol *kcontrol,
180 struct snd_ctl_elem_value *ucontrol)
181 {
182 struct snd_soc_component *component =
183 snd_soc_kcontrol_component(kcontrol);
184 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
185 int i, reg;
186 u16 reg_val, *val;
187 __be16 tmp;
188
189 val = (u16 *)ucontrol->value.bytes.data;
190 reg = NAU8822_REG_EQ1;
191 for (i = 0; i < params->max / sizeof(u16); i++) {
192 reg_val = snd_soc_component_read(component, reg + i);
193 /* conversion of 16-bit integers between native CPU format
194 * and big endian format
195 */
196 tmp = cpu_to_be16(reg_val);
197 memcpy(val + i, &tmp, sizeof(tmp));
198 }
199
200 return 0;
201 }
202
203 /* The EQ parameters put function is to make configuration of 5 band equalizer
204 * control. These configuration includes central frequency, equalizer gain,
205 * cut-off frequency, bandwidth control, and equalizer path.
206 * The regmap raw write can't work here because regmap doesn't provide
207 * register and value format for register with address 7 bits and value 9 bits.
208 * Therefore, the driver makes value format according to the endianness of
209 * bytes type control element and writes data to codec.
210 */
nau8822_eq_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)211 static int nau8822_eq_put(struct snd_kcontrol *kcontrol,
212 struct snd_ctl_elem_value *ucontrol)
213 {
214 struct snd_soc_component *component =
215 snd_soc_kcontrol_component(kcontrol);
216 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
217 void *data;
218 u16 *val, value;
219 int i, reg, ret;
220 __be16 *tmp;
221
222 data = kmemdup(ucontrol->value.bytes.data,
223 params->max, GFP_KERNEL | GFP_DMA);
224 if (!data)
225 return -ENOMEM;
226
227 val = (u16 *)data;
228 reg = NAU8822_REG_EQ1;
229 for (i = 0; i < params->max / sizeof(u16); i++) {
230 /* conversion of 16-bit integers between native CPU format
231 * and big endian format
232 */
233 tmp = (__be16 *)(val + i);
234 value = be16_to_cpup(tmp);
235 ret = snd_soc_component_write(component, reg + i, value);
236 if (ret) {
237 dev_err(component->dev,
238 "EQ configuration fail, register: %x ret: %d\n",
239 reg + i, ret);
240 kfree(data);
241 return ret;
242 }
243 }
244 kfree(data);
245
246 return 0;
247 }
248
249 static const char * const nau8822_companding[] = {
250 "Off", "NC", "u-law", "A-law"};
251
252 static const struct soc_enum nau8822_companding_adc_enum =
253 SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_ADCCM_SFT,
254 ARRAY_SIZE(nau8822_companding), nau8822_companding);
255
256 static const struct soc_enum nau8822_companding_dac_enum =
257 SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_DACCM_SFT,
258 ARRAY_SIZE(nau8822_companding), nau8822_companding);
259
260 static const char * const nau8822_eqmode[] = {"Capture", "Playback"};
261
262 static const struct soc_enum nau8822_eqmode_enum =
263 SOC_ENUM_SINGLE(NAU8822_REG_EQ1, NAU8822_EQM_SFT,
264 ARRAY_SIZE(nau8822_eqmode), nau8822_eqmode);
265
266 static const char * const nau8822_alc1[] = {"Off", "Right", "Left", "Both"};
267 static const char * const nau8822_alc3[] = {"Normal", "Limiter"};
268
269 static const struct soc_enum nau8822_alc_enable_enum =
270 SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_1, NAU8822_ALCEN_SFT,
271 ARRAY_SIZE(nau8822_alc1), nau8822_alc1);
272
273 static const struct soc_enum nau8822_alc_mode_enum =
274 SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_3, NAU8822_ALCM_SFT,
275 ARRAY_SIZE(nau8822_alc3), nau8822_alc3);
276
277 static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1);
278 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0);
279 static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0);
280 static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0);
281 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1500, 300, 1);
282 static const DECLARE_TLV_DB_SCALE(limiter_tlv, 0, 100, 0);
283
284 static const struct snd_kcontrol_new nau8822_snd_controls[] = {
285 SOC_ENUM("ADC Companding", nau8822_companding_adc_enum),
286 SOC_ENUM("DAC Companding", nau8822_companding_dac_enum),
287
288 SOC_ENUM("EQ Function", nau8822_eqmode_enum),
289 SND_SOC_BYTES_EXT("EQ Parameters", 10,
290 nau8822_eq_get, nau8822_eq_put),
291
292 SOC_DOUBLE("DAC Inversion Switch",
293 NAU8822_REG_DAC_CONTROL, 0, 1, 1, 0),
294 SOC_DOUBLE_R_TLV("PCM Volume",
295 NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME,
296 NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv),
297
298 SOC_SINGLE("High Pass Filter Switch",
299 NAU8822_REG_ADC_CONTROL, 8, 1, 0),
300 SOC_SINGLE("High Pass Cut Off",
301 NAU8822_REG_ADC_CONTROL, 4, 7, 0),
302
303 SOC_DOUBLE("ADC Inversion Switch",
304 NAU8822_REG_ADC_CONTROL, 0, 1, 1, 0),
305 SOC_DOUBLE_R_TLV("ADC Volume",
306 NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME,
307 NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv),
308
309 SOC_SINGLE("DAC Limiter Switch",
310 NAU8822_REG_DAC_LIMITER_1, 8, 1, 0),
311 SOC_SINGLE("DAC Limiter Decay",
312 NAU8822_REG_DAC_LIMITER_1, 4, 15, 0),
313 SOC_SINGLE("DAC Limiter Attack",
314 NAU8822_REG_DAC_LIMITER_1, 0, 15, 0),
315 SOC_SINGLE("DAC Limiter Threshold",
316 NAU8822_REG_DAC_LIMITER_2, 4, 7, 0),
317 SOC_SINGLE_TLV("DAC Limiter Volume",
318 NAU8822_REG_DAC_LIMITER_2, 0, 12, 0, limiter_tlv),
319
320 SOC_ENUM("ALC Mode", nau8822_alc_mode_enum),
321 SOC_ENUM("ALC Enable Switch", nau8822_alc_enable_enum),
322 SOC_SINGLE("ALC Min Gain",
323 NAU8822_REG_ALC_CONTROL_1, 0, 7, 0),
324 SOC_SINGLE("ALC Max Gain",
325 NAU8822_REG_ALC_CONTROL_1, 3, 7, 0),
326 SOC_SINGLE("ALC Hold",
327 NAU8822_REG_ALC_CONTROL_2, 4, 10, 0),
328 SOC_SINGLE("ALC Target",
329 NAU8822_REG_ALC_CONTROL_2, 0, 15, 0),
330 SOC_SINGLE("ALC Decay",
331 NAU8822_REG_ALC_CONTROL_3, 4, 10, 0),
332 SOC_SINGLE("ALC Attack",
333 NAU8822_REG_ALC_CONTROL_3, 0, 10, 0),
334 SOC_SINGLE("ALC Noise Gate Switch",
335 NAU8822_REG_NOISE_GATE, 3, 1, 0),
336 SOC_SINGLE("ALC Noise Gate Threshold",
337 NAU8822_REG_NOISE_GATE, 0, 7, 0),
338
339 SOC_DOUBLE_R("PGA ZC Switch",
340 NAU8822_REG_LEFT_INP_PGA_CONTROL,
341 NAU8822_REG_RIGHT_INP_PGA_CONTROL,
342 7, 1, 0),
343 SOC_DOUBLE_R_TLV("PGA Volume",
344 NAU8822_REG_LEFT_INP_PGA_CONTROL,
345 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 0, 63, 0, inpga_tlv),
346
347 SOC_DOUBLE_R("Headphone ZC Switch",
348 NAU8822_REG_LHP_VOLUME,
349 NAU8822_REG_RHP_VOLUME, 7, 1, 0),
350 SOC_DOUBLE_R("Headphone Playback Switch",
351 NAU8822_REG_LHP_VOLUME,
352 NAU8822_REG_RHP_VOLUME, 6, 1, 1),
353 SOC_DOUBLE_R_TLV("Headphone Volume",
354 NAU8822_REG_LHP_VOLUME,
355 NAU8822_REG_RHP_VOLUME, 0, 63, 0, spk_tlv),
356
357 SOC_DOUBLE_R("Speaker ZC Switch",
358 NAU8822_REG_LSPKOUT_VOLUME,
359 NAU8822_REG_RSPKOUT_VOLUME, 7, 1, 0),
360 SOC_DOUBLE_R("Speaker Playback Switch",
361 NAU8822_REG_LSPKOUT_VOLUME,
362 NAU8822_REG_RSPKOUT_VOLUME, 6, 1, 1),
363 SOC_DOUBLE_R_TLV("Speaker Volume",
364 NAU8822_REG_LSPKOUT_VOLUME,
365 NAU8822_REG_RSPKOUT_VOLUME, 0, 63, 0, spk_tlv),
366
367 SOC_DOUBLE_R("AUXOUT Playback Switch",
368 NAU8822_REG_AUX2_MIXER,
369 NAU8822_REG_AUX1_MIXER, 6, 1, 1),
370
371 SOC_DOUBLE_R_TLV("PGA Boost Volume",
372 NAU8822_REG_LEFT_ADC_BOOST_CONTROL,
373 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 8, 1, 0, pga_boost_tlv),
374 SOC_DOUBLE_R_TLV("L2/R2 Boost Volume",
375 NAU8822_REG_LEFT_ADC_BOOST_CONTROL,
376 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 4, 7, 0, boost_tlv),
377 SOC_DOUBLE_R_TLV("Aux Boost Volume",
378 NAU8822_REG_LEFT_ADC_BOOST_CONTROL,
379 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 0, 7, 0, boost_tlv),
380
381 SOC_SINGLE("DAC 128x Oversampling Switch",
382 NAU8822_REG_DAC_CONTROL, 5, 1, 0),
383 SOC_SINGLE("ADC 128x Oversampling Switch",
384 NAU8822_REG_ADC_CONTROL, 5, 1, 0),
385 };
386
387 /* LMAIN and RMAIN Mixer */
388 static const struct snd_kcontrol_new nau8822_left_out_mixer[] = {
389 SOC_DAPM_SINGLE("LINMIX Switch",
390 NAU8822_REG_LEFT_MIXER_CONTROL, 1, 1, 0),
391 SOC_DAPM_SINGLE("LAUX Switch",
392 NAU8822_REG_LEFT_MIXER_CONTROL, 5, 1, 0),
393 SOC_DAPM_SINGLE("LDAC Switch",
394 NAU8822_REG_LEFT_MIXER_CONTROL, 0, 1, 0),
395 SOC_DAPM_SINGLE("RDAC Switch",
396 NAU8822_REG_OUTPUT_CONTROL, 5, 1, 0),
397 };
398
399 static const struct snd_kcontrol_new nau8822_right_out_mixer[] = {
400 SOC_DAPM_SINGLE("RINMIX Switch",
401 NAU8822_REG_RIGHT_MIXER_CONTROL, 1, 1, 0),
402 SOC_DAPM_SINGLE("RAUX Switch",
403 NAU8822_REG_RIGHT_MIXER_CONTROL, 5, 1, 0),
404 SOC_DAPM_SINGLE("RDAC Switch",
405 NAU8822_REG_RIGHT_MIXER_CONTROL, 0, 1, 0),
406 SOC_DAPM_SINGLE("LDAC Switch",
407 NAU8822_REG_OUTPUT_CONTROL, 6, 1, 0),
408 };
409
410 /* AUX1 and AUX2 Mixer */
411 static const struct snd_kcontrol_new nau8822_auxout1_mixer[] = {
412 SOC_DAPM_SINGLE("RDAC Switch", NAU8822_REG_AUX1_MIXER, 0, 1, 0),
413 SOC_DAPM_SINGLE("RMIX Switch", NAU8822_REG_AUX1_MIXER, 1, 1, 0),
414 SOC_DAPM_SINGLE("RINMIX Switch", NAU8822_REG_AUX1_MIXER, 2, 1, 0),
415 SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX1_MIXER, 3, 1, 0),
416 SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX1_MIXER, 4, 1, 0),
417 };
418
419 static const struct snd_kcontrol_new nau8822_auxout2_mixer[] = {
420 SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX2_MIXER, 0, 1, 0),
421 SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX2_MIXER, 1, 1, 0),
422 SOC_DAPM_SINGLE("LINMIX Switch", NAU8822_REG_AUX2_MIXER, 2, 1, 0),
423 SOC_DAPM_SINGLE("AUX1MIX Output Switch",
424 NAU8822_REG_AUX2_MIXER, 3, 1, 0),
425 };
426
427 /* Input PGA */
428 static const struct snd_kcontrol_new nau8822_left_input_mixer[] = {
429 SOC_DAPM_SINGLE("L2 Switch", NAU8822_REG_INPUT_CONTROL, 2, 1, 0),
430 SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 1, 1, 0),
431 SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 0, 1, 0),
432 };
433 static const struct snd_kcontrol_new nau8822_right_input_mixer[] = {
434 SOC_DAPM_SINGLE("R2 Switch", NAU8822_REG_INPUT_CONTROL, 6, 1, 0),
435 SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 5, 1, 0),
436 SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 4, 1, 0),
437 };
438
439 /* Loopback Switch */
440 static const struct snd_kcontrol_new nau8822_loopback =
441 SOC_DAPM_SINGLE("Switch", NAU8822_REG_COMPANDING_CONTROL,
442 NAU8822_ADDAP_SFT, 1, 0);
443
check_mclk_select_pll(struct snd_soc_dapm_widget * source,struct snd_soc_dapm_widget * sink)444 static int check_mclk_select_pll(struct snd_soc_dapm_widget *source,
445 struct snd_soc_dapm_widget *sink)
446 {
447 struct snd_soc_component *component =
448 snd_soc_dapm_to_component(source->dapm);
449 unsigned int value;
450
451 value = snd_soc_component_read(component, NAU8822_REG_CLOCKING);
452
453 return (value & NAU8822_CLKM_MASK);
454 }
455
456 static const struct snd_soc_dapm_widget nau8822_dapm_widgets[] = {
457 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
458 NAU8822_REG_POWER_MANAGEMENT_3, 0, 0),
459 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
460 NAU8822_REG_POWER_MANAGEMENT_3, 1, 0),
461 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture",
462 NAU8822_REG_POWER_MANAGEMENT_2, 0, 0),
463 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture",
464 NAU8822_REG_POWER_MANAGEMENT_2, 1, 0),
465
466 SOC_MIXER_ARRAY("Left Output Mixer",
467 NAU8822_REG_POWER_MANAGEMENT_3, 2, 0, nau8822_left_out_mixer),
468 SOC_MIXER_ARRAY("Right Output Mixer",
469 NAU8822_REG_POWER_MANAGEMENT_3, 3, 0, nau8822_right_out_mixer),
470 SOC_MIXER_ARRAY("AUX1 Output Mixer",
471 NAU8822_REG_POWER_MANAGEMENT_1, 7, 0, nau8822_auxout1_mixer),
472 SOC_MIXER_ARRAY("AUX2 Output Mixer",
473 NAU8822_REG_POWER_MANAGEMENT_1, 6, 0, nau8822_auxout2_mixer),
474
475 SOC_MIXER_ARRAY("Left Input Mixer",
476 NAU8822_REG_POWER_MANAGEMENT_2,
477 2, 0, nau8822_left_input_mixer),
478 SOC_MIXER_ARRAY("Right Input Mixer",
479 NAU8822_REG_POWER_MANAGEMENT_2,
480 3, 0, nau8822_right_input_mixer),
481
482 SND_SOC_DAPM_PGA("Left Boost Mixer",
483 NAU8822_REG_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
484 SND_SOC_DAPM_PGA("Right Boost Mixer",
485 NAU8822_REG_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
486
487 SND_SOC_DAPM_PGA("Left Capture PGA",
488 NAU8822_REG_LEFT_INP_PGA_CONTROL, 6, 1, NULL, 0),
489 SND_SOC_DAPM_PGA("Right Capture PGA",
490 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 6, 1, NULL, 0),
491
492 SND_SOC_DAPM_PGA("Left Headphone Out",
493 NAU8822_REG_POWER_MANAGEMENT_2, 7, 0, NULL, 0),
494 SND_SOC_DAPM_PGA("Right Headphone Out",
495 NAU8822_REG_POWER_MANAGEMENT_2, 8, 0, NULL, 0),
496
497 SND_SOC_DAPM_PGA("Left Speaker Out",
498 NAU8822_REG_POWER_MANAGEMENT_3, 6, 0, NULL, 0),
499 SND_SOC_DAPM_PGA("Right Speaker Out",
500 NAU8822_REG_POWER_MANAGEMENT_3, 5, 0, NULL, 0),
501
502 SND_SOC_DAPM_PGA("AUX1 Out",
503 NAU8822_REG_POWER_MANAGEMENT_3, 8, 0, NULL, 0),
504 SND_SOC_DAPM_PGA("AUX2 Out",
505 NAU8822_REG_POWER_MANAGEMENT_3, 7, 0, NULL, 0),
506
507 SND_SOC_DAPM_SUPPLY("Mic Bias",
508 NAU8822_REG_POWER_MANAGEMENT_1, 4, 0, NULL, 0),
509 SND_SOC_DAPM_SUPPLY("PLL",
510 NAU8822_REG_POWER_MANAGEMENT_1, 5, 0, NULL, 0),
511
512 SND_SOC_DAPM_SWITCH("Digital Loopback", SND_SOC_NOPM, 0, 0,
513 &nau8822_loopback),
514
515 SND_SOC_DAPM_INPUT("LMICN"),
516 SND_SOC_DAPM_INPUT("LMICP"),
517 SND_SOC_DAPM_INPUT("RMICN"),
518 SND_SOC_DAPM_INPUT("RMICP"),
519 SND_SOC_DAPM_INPUT("LAUX"),
520 SND_SOC_DAPM_INPUT("RAUX"),
521 SND_SOC_DAPM_INPUT("L2"),
522 SND_SOC_DAPM_INPUT("R2"),
523 SND_SOC_DAPM_OUTPUT("LHP"),
524 SND_SOC_DAPM_OUTPUT("RHP"),
525 SND_SOC_DAPM_OUTPUT("LSPK"),
526 SND_SOC_DAPM_OUTPUT("RSPK"),
527 SND_SOC_DAPM_OUTPUT("AUXOUT1"),
528 SND_SOC_DAPM_OUTPUT("AUXOUT2"),
529 };
530
531 static const struct snd_soc_dapm_route nau8822_dapm_routes[] = {
532 {"Right DAC", NULL, "PLL", check_mclk_select_pll},
533 {"Left DAC", NULL, "PLL", check_mclk_select_pll},
534
535 /* LMAIN and RMAIN Mixer */
536 {"Right Output Mixer", "LDAC Switch", "Left DAC"},
537 {"Right Output Mixer", "RDAC Switch", "Right DAC"},
538 {"Right Output Mixer", "RAUX Switch", "RAUX"},
539 {"Right Output Mixer", "RINMIX Switch", "Right Boost Mixer"},
540
541 {"Left Output Mixer", "LDAC Switch", "Left DAC"},
542 {"Left Output Mixer", "RDAC Switch", "Right DAC"},
543 {"Left Output Mixer", "LAUX Switch", "LAUX"},
544 {"Left Output Mixer", "LINMIX Switch", "Left Boost Mixer"},
545
546 /* AUX1 and AUX2 Mixer */
547 {"AUX1 Output Mixer", "RDAC Switch", "Right DAC"},
548 {"AUX1 Output Mixer", "RMIX Switch", "Right Output Mixer"},
549 {"AUX1 Output Mixer", "RINMIX Switch", "Right Boost Mixer"},
550 {"AUX1 Output Mixer", "LDAC Switch", "Left DAC"},
551 {"AUX1 Output Mixer", "LMIX Switch", "Left Output Mixer"},
552
553 {"AUX2 Output Mixer", "LDAC Switch", "Left DAC"},
554 {"AUX2 Output Mixer", "LMIX Switch", "Left Output Mixer"},
555 {"AUX2 Output Mixer", "LINMIX Switch", "Left Boost Mixer"},
556 {"AUX2 Output Mixer", "AUX1MIX Output Switch", "AUX1 Output Mixer"},
557
558 /* Outputs */
559 {"Right Headphone Out", NULL, "Right Output Mixer"},
560 {"RHP", NULL, "Right Headphone Out"},
561
562 {"Left Headphone Out", NULL, "Left Output Mixer"},
563 {"LHP", NULL, "Left Headphone Out"},
564
565 {"Right Speaker Out", NULL, "Right Output Mixer"},
566 {"RSPK", NULL, "Right Speaker Out"},
567
568 {"Left Speaker Out", NULL, "Left Output Mixer"},
569 {"LSPK", NULL, "Left Speaker Out"},
570
571 {"AUX1 Out", NULL, "AUX1 Output Mixer"},
572 {"AUX2 Out", NULL, "AUX2 Output Mixer"},
573 {"AUXOUT1", NULL, "AUX1 Out"},
574 {"AUXOUT2", NULL, "AUX2 Out"},
575
576 /* Boost Mixer */
577 {"Right ADC", NULL, "PLL", check_mclk_select_pll},
578 {"Left ADC", NULL, "PLL", check_mclk_select_pll},
579
580 {"Right ADC", NULL, "Right Boost Mixer"},
581
582 {"Right Boost Mixer", NULL, "RAUX"},
583 {"Right Boost Mixer", NULL, "Right Capture PGA"},
584 {"Right Boost Mixer", NULL, "R2"},
585
586 {"Left ADC", NULL, "Left Boost Mixer"},
587
588 {"Left Boost Mixer", NULL, "LAUX"},
589 {"Left Boost Mixer", NULL, "Left Capture PGA"},
590 {"Left Boost Mixer", NULL, "L2"},
591
592 /* Input PGA */
593 {"Right Capture PGA", NULL, "Right Input Mixer"},
594 {"Left Capture PGA", NULL, "Left Input Mixer"},
595
596 /* Enable Microphone Power */
597 {"Right Capture PGA", NULL, "Mic Bias"},
598 {"Left Capture PGA", NULL, "Mic Bias"},
599
600 {"Right Input Mixer", "R2 Switch", "R2"},
601 {"Right Input Mixer", "MicN Switch", "RMICN"},
602 {"Right Input Mixer", "MicP Switch", "RMICP"},
603
604 {"Left Input Mixer", "L2 Switch", "L2"},
605 {"Left Input Mixer", "MicN Switch", "LMICN"},
606 {"Left Input Mixer", "MicP Switch", "LMICP"},
607
608 /* Digital Loopback */
609 {"Digital Loopback", "Switch", "Left ADC"},
610 {"Digital Loopback", "Switch", "Right ADC"},
611 {"Left DAC", NULL, "Digital Loopback"},
612 {"Right DAC", NULL, "Digital Loopback"},
613 };
614
nau8822_set_dai_sysclk(struct snd_soc_dai * dai,int clk_id,unsigned int freq,int dir)615 static int nau8822_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
616 unsigned int freq, int dir)
617 {
618 struct snd_soc_component *component = dai->component;
619 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
620
621 nau8822->div_id = clk_id;
622 nau8822->sysclk = freq;
623 dev_dbg(component->dev, "master sysclk %dHz, source %s\n", freq,
624 clk_id == NAU8822_CLK_PLL ? "PLL" : "MCLK");
625
626 return 0;
627 }
628
nau8822_calc_pll(unsigned int pll_in,unsigned int fs,struct nau8822_pll * pll_param)629 static int nau8822_calc_pll(unsigned int pll_in, unsigned int fs,
630 struct nau8822_pll *pll_param)
631 {
632 u64 f2, f2_max, pll_ratio;
633 int i, scal_sel;
634
635 if (pll_in > NAU_PLL_REF_MAX || pll_in < NAU_PLL_REF_MIN)
636 return -EINVAL;
637 f2_max = 0;
638 scal_sel = ARRAY_SIZE(nau8822_mclk_scaler);
639
640 for (i = 0; i < scal_sel; i++) {
641 f2 = 256 * fs * 4 * nau8822_mclk_scaler[i] / 10;
642 if (f2 > NAU_PLL_FREQ_MIN && f2 < NAU_PLL_FREQ_MAX &&
643 f2_max < f2) {
644 f2_max = f2;
645 scal_sel = i;
646 }
647 }
648
649 if (ARRAY_SIZE(nau8822_mclk_scaler) == scal_sel)
650 return -EINVAL;
651 pll_param->mclk_scaler = scal_sel;
652 f2 = f2_max;
653
654 /* Calculate the PLL 4-bit integer input and the PLL 24-bit fractional
655 * input; round up the 24+4bit.
656 */
657 pll_ratio = div_u64(f2 << 28, pll_in);
658 pll_param->pre_factor = 0;
659 if (((pll_ratio >> 28) & 0xF) < NAU_PLL_OPTOP_MIN) {
660 pll_ratio <<= 1;
661 pll_param->pre_factor = 1;
662 }
663 pll_param->pll_int = (pll_ratio >> 28) & 0xF;
664 pll_param->pll_frac = ((pll_ratio & 0xFFFFFFF) >> 4);
665
666 return 0;
667 }
668
nau8822_config_clkdiv(struct snd_soc_dai * dai,int div,int rate)669 static int nau8822_config_clkdiv(struct snd_soc_dai *dai, int div, int rate)
670 {
671 struct snd_soc_component *component = dai->component;
672 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
673 struct nau8822_pll *pll = &nau8822->pll;
674 int i, sclk, imclk;
675
676 switch (nau8822->div_id) {
677 case NAU8822_CLK_MCLK:
678 /* Configure the master clock prescaler div to make system
679 * clock to approximate the internal master clock (IMCLK);
680 * and large or equal to IMCLK.
681 */
682 div = 0;
683 imclk = rate * 256;
684 for (i = 1; i < ARRAY_SIZE(nau8822_mclk_scaler); i++) {
685 sclk = (nau8822->sysclk * 10) / nau8822_mclk_scaler[i];
686 if (sclk < imclk)
687 break;
688 div = i;
689 }
690 dev_dbg(component->dev, "master clock prescaler %x for fs %d\n",
691 div, rate);
692
693 /* master clock from MCLK and disable PLL */
694 snd_soc_component_update_bits(component,
695 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK,
696 (div << NAU8822_MCLKSEL_SFT));
697 snd_soc_component_update_bits(component,
698 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK,
699 NAU8822_CLKM_MCLK);
700 break;
701
702 case NAU8822_CLK_PLL:
703 /* master clock from PLL and enable PLL */
704 if (pll->mclk_scaler != div) {
705 dev_err(component->dev,
706 "master clock prescaler not meet PLL parameters\n");
707 return -EINVAL;
708 }
709 snd_soc_component_update_bits(component,
710 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK,
711 (div << NAU8822_MCLKSEL_SFT));
712 snd_soc_component_update_bits(component,
713 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK,
714 NAU8822_CLKM_PLL);
715 break;
716
717 default:
718 return -EINVAL;
719 }
720
721 return 0;
722 }
723
nau8822_set_pll(struct snd_soc_dai * dai,int pll_id,int source,unsigned int freq_in,unsigned int freq_out)724 static int nau8822_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
725 unsigned int freq_in, unsigned int freq_out)
726 {
727 struct snd_soc_component *component = dai->component;
728 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
729 struct nau8822_pll *pll_param = &nau8822->pll;
730 int ret, fs;
731
732 if (freq_in == pll_param->freq_in &&
733 freq_out == pll_param->freq_out)
734 return 0;
735
736 if (freq_out == 0) {
737 dev_dbg(component->dev, "PLL disabled\n");
738 snd_soc_component_update_bits(component,
739 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_OFF);
740 return 0;
741 }
742
743 fs = freq_out / 256;
744
745 ret = nau8822_calc_pll(freq_in, fs, pll_param);
746 if (ret < 0) {
747 dev_err(component->dev, "Unsupported input clock %d\n",
748 freq_in);
749 return ret;
750 }
751
752 dev_info(component->dev,
753 "pll_int=%x pll_frac=%x mclk_scaler=%x pre_factor=%x\n",
754 pll_param->pll_int, pll_param->pll_frac,
755 pll_param->mclk_scaler, pll_param->pre_factor);
756
757 snd_soc_component_update_bits(component,
758 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_OFF);
759 snd_soc_component_update_bits(component,
760 NAU8822_REG_PLL_N, NAU8822_PLLMCLK_DIV2 | NAU8822_PLLN_MASK,
761 (pll_param->pre_factor ? NAU8822_PLLMCLK_DIV2 : 0) |
762 pll_param->pll_int);
763 snd_soc_component_write(component,
764 NAU8822_REG_PLL_K1, (pll_param->pll_frac >> NAU8822_PLLK1_SFT) &
765 NAU8822_PLLK1_MASK);
766 snd_soc_component_write(component,
767 NAU8822_REG_PLL_K2, (pll_param->pll_frac >> NAU8822_PLLK2_SFT) &
768 NAU8822_PLLK2_MASK);
769 snd_soc_component_write(component,
770 NAU8822_REG_PLL_K3, pll_param->pll_frac & NAU8822_PLLK3_MASK);
771 snd_soc_component_update_bits(component,
772 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK,
773 pll_param->mclk_scaler << NAU8822_MCLKSEL_SFT);
774 snd_soc_component_update_bits(component,
775 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, NAU8822_CLKM_PLL);
776 snd_soc_component_update_bits(component,
777 NAU8822_REG_POWER_MANAGEMENT_1, NAU8822_PLL_EN_MASK, NAU8822_PLL_ON);
778
779 pll_param->freq_in = freq_in;
780 pll_param->freq_out = freq_out;
781
782 return 0;
783 }
784
nau8822_set_dai_fmt(struct snd_soc_dai * dai,unsigned int fmt)785 static int nau8822_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
786 {
787 struct snd_soc_component *component = dai->component;
788 u16 ctrl1_val = 0, ctrl2_val = 0;
789
790 dev_dbg(component->dev, "%s\n", __func__);
791
792 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
793 case SND_SOC_DAIFMT_CBM_CFM:
794 ctrl2_val |= 1;
795 break;
796 case SND_SOC_DAIFMT_CBS_CFS:
797 ctrl2_val &= ~1;
798 break;
799 default:
800 return -EINVAL;
801 }
802
803 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
804 case SND_SOC_DAIFMT_I2S:
805 ctrl1_val |= 0x10;
806 break;
807 case SND_SOC_DAIFMT_RIGHT_J:
808 break;
809 case SND_SOC_DAIFMT_LEFT_J:
810 ctrl1_val |= 0x8;
811 break;
812 case SND_SOC_DAIFMT_DSP_A:
813 ctrl1_val |= 0x18;
814 break;
815 default:
816 return -EINVAL;
817 }
818
819 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
820 case SND_SOC_DAIFMT_NB_NF:
821 break;
822 case SND_SOC_DAIFMT_IB_IF:
823 ctrl1_val |= 0x180;
824 break;
825 case SND_SOC_DAIFMT_IB_NF:
826 ctrl1_val |= 0x100;
827 break;
828 case SND_SOC_DAIFMT_NB_IF:
829 ctrl1_val |= 0x80;
830 break;
831 default:
832 return -EINVAL;
833 }
834
835 snd_soc_component_update_bits(component,
836 NAU8822_REG_AUDIO_INTERFACE,
837 NAU8822_AIFMT_MASK | NAU8822_LRP_MASK | NAU8822_BCLKP_MASK,
838 ctrl1_val);
839 snd_soc_component_update_bits(component,
840 NAU8822_REG_CLOCKING, NAU8822_CLKIOEN_MASK, ctrl2_val);
841
842 return 0;
843 }
844
nau8822_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)845 static int nau8822_hw_params(struct snd_pcm_substream *substream,
846 struct snd_pcm_hw_params *params,
847 struct snd_soc_dai *dai)
848 {
849 struct snd_soc_component *component = dai->component;
850 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
851 int val_len = 0, val_rate = 0;
852 unsigned int ctrl_val, bclk_fs, bclk_div;
853
854 /* make BCLK and LRC divide configuration if the codec as master. */
855 ctrl_val = snd_soc_component_read(component, NAU8822_REG_CLOCKING);
856 if (ctrl_val & NAU8822_CLK_MASTER) {
857 /* get the bclk and fs ratio */
858 bclk_fs = snd_soc_params_to_bclk(params) / params_rate(params);
859 if (bclk_fs <= 32)
860 bclk_div = NAU8822_BCLKDIV_8;
861 else if (bclk_fs <= 64)
862 bclk_div = NAU8822_BCLKDIV_4;
863 else if (bclk_fs <= 128)
864 bclk_div = NAU8822_BCLKDIV_2;
865 else
866 return -EINVAL;
867 snd_soc_component_update_bits(component, NAU8822_REG_CLOCKING,
868 NAU8822_BCLKSEL_MASK, bclk_div);
869 }
870
871 switch (params_format(params)) {
872 case SNDRV_PCM_FORMAT_S16_LE:
873 break;
874 case SNDRV_PCM_FORMAT_S20_3LE:
875 val_len |= NAU8822_WLEN_20;
876 break;
877 case SNDRV_PCM_FORMAT_S24_LE:
878 val_len |= NAU8822_WLEN_24;
879 break;
880 case SNDRV_PCM_FORMAT_S32_LE:
881 val_len |= NAU8822_WLEN_32;
882 break;
883 default:
884 return -EINVAL;
885 }
886
887 switch (params_rate(params)) {
888 case 8000:
889 val_rate |= NAU8822_SMPLR_8K;
890 break;
891 case 11025:
892 val_rate |= NAU8822_SMPLR_12K;
893 break;
894 case 16000:
895 val_rate |= NAU8822_SMPLR_16K;
896 break;
897 case 22050:
898 val_rate |= NAU8822_SMPLR_24K;
899 break;
900 case 32000:
901 val_rate |= NAU8822_SMPLR_32K;
902 break;
903 case 44100:
904 case 48000:
905 break;
906 default:
907 return -EINVAL;
908 }
909
910 snd_soc_component_update_bits(component,
911 NAU8822_REG_AUDIO_INTERFACE, NAU8822_WLEN_MASK, val_len);
912 snd_soc_component_update_bits(component,
913 NAU8822_REG_ADDITIONAL_CONTROL, NAU8822_SMPLR_MASK, val_rate);
914
915 /* If the master clock is from MCLK, provide the runtime FS for driver
916 * to get the master clock prescaler configuration.
917 */
918 if (nau8822->div_id == NAU8822_CLK_MCLK)
919 nau8822_config_clkdiv(dai, 0, params_rate(params));
920
921 return 0;
922 }
923
nau8822_mute(struct snd_soc_dai * dai,int mute,int direction)924 static int nau8822_mute(struct snd_soc_dai *dai, int mute, int direction)
925 {
926 struct snd_soc_component *component = dai->component;
927
928 dev_dbg(component->dev, "%s: %d\n", __func__, mute);
929
930 if (mute)
931 snd_soc_component_update_bits(component,
932 NAU8822_REG_DAC_CONTROL, 0x40, 0x40);
933 else
934 snd_soc_component_update_bits(component,
935 NAU8822_REG_DAC_CONTROL, 0x40, 0);
936
937 return 0;
938 }
939
nau8822_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)940 static int nau8822_set_bias_level(struct snd_soc_component *component,
941 enum snd_soc_bias_level level)
942 {
943 switch (level) {
944 case SND_SOC_BIAS_ON:
945 case SND_SOC_BIAS_PREPARE:
946 snd_soc_component_update_bits(component,
947 NAU8822_REG_POWER_MANAGEMENT_1,
948 NAU8822_REFIMP_MASK, NAU8822_REFIMP_80K);
949 break;
950
951 case SND_SOC_BIAS_STANDBY:
952 snd_soc_component_update_bits(component,
953 NAU8822_REG_POWER_MANAGEMENT_1,
954 NAU8822_IOBUF_EN | NAU8822_ABIAS_EN,
955 NAU8822_IOBUF_EN | NAU8822_ABIAS_EN);
956
957 if (snd_soc_component_get_bias_level(component) ==
958 SND_SOC_BIAS_OFF) {
959 snd_soc_component_update_bits(component,
960 NAU8822_REG_POWER_MANAGEMENT_1,
961 NAU8822_REFIMP_MASK, NAU8822_REFIMP_3K);
962 mdelay(100);
963 }
964 snd_soc_component_update_bits(component,
965 NAU8822_REG_POWER_MANAGEMENT_1,
966 NAU8822_REFIMP_MASK, NAU8822_REFIMP_300K);
967 break;
968
969 case SND_SOC_BIAS_OFF:
970 snd_soc_component_write(component,
971 NAU8822_REG_POWER_MANAGEMENT_1, 0);
972 snd_soc_component_write(component,
973 NAU8822_REG_POWER_MANAGEMENT_2, 0);
974 snd_soc_component_write(component,
975 NAU8822_REG_POWER_MANAGEMENT_3, 0);
976 break;
977 }
978
979 dev_dbg(component->dev, "%s: %d\n", __func__, level);
980
981 return 0;
982 }
983
984 #define NAU8822_RATES (SNDRV_PCM_RATE_8000_48000)
985
986 #define NAU8822_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
987 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
988
989 static const struct snd_soc_dai_ops nau8822_dai_ops = {
990 .hw_params = nau8822_hw_params,
991 .mute_stream = nau8822_mute,
992 .set_fmt = nau8822_set_dai_fmt,
993 .set_sysclk = nau8822_set_dai_sysclk,
994 .set_pll = nau8822_set_pll,
995 .no_capture_mute = 1,
996 };
997
998 static struct snd_soc_dai_driver nau8822_dai = {
999 .name = "nau8822-hifi",
1000 .playback = {
1001 .stream_name = "Playback",
1002 .channels_min = 1,
1003 .channels_max = 2,
1004 .rates = NAU8822_RATES,
1005 .formats = NAU8822_FORMATS,
1006 },
1007 .capture = {
1008 .stream_name = "Capture",
1009 .channels_min = 1,
1010 .channels_max = 2,
1011 .rates = NAU8822_RATES,
1012 .formats = NAU8822_FORMATS,
1013 },
1014 .ops = &nau8822_dai_ops,
1015 .symmetric_rate = 1,
1016 };
1017
nau8822_suspend(struct snd_soc_component * component)1018 static int nau8822_suspend(struct snd_soc_component *component)
1019 {
1020 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
1021
1022 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
1023
1024 regcache_mark_dirty(nau8822->regmap);
1025
1026 return 0;
1027 }
1028
nau8822_resume(struct snd_soc_component * component)1029 static int nau8822_resume(struct snd_soc_component *component)
1030 {
1031 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
1032
1033 regcache_sync(nau8822->regmap);
1034
1035 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
1036
1037 return 0;
1038 }
1039
1040 /*
1041 * These registers contain an "update" bit - bit 8. This means, for example,
1042 * that one can write new DAC digital volume for both channels, but only when
1043 * the update bit is set, will also the volume be updated - simultaneously for
1044 * both channels.
1045 */
1046 static const int update_reg[] = {
1047 NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME,
1048 NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME,
1049 NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME,
1050 NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME,
1051 NAU8822_REG_LEFT_INP_PGA_CONTROL,
1052 NAU8822_REG_RIGHT_INP_PGA_CONTROL,
1053 NAU8822_REG_LHP_VOLUME,
1054 NAU8822_REG_RHP_VOLUME,
1055 NAU8822_REG_LSPKOUT_VOLUME,
1056 NAU8822_REG_RSPKOUT_VOLUME,
1057 };
1058
nau8822_probe(struct snd_soc_component * component)1059 static int nau8822_probe(struct snd_soc_component *component)
1060 {
1061 int i;
1062 struct device_node *of_node = component->dev->of_node;
1063
1064 /*
1065 * Set the update bit in all registers, that have one. This way all
1066 * writes to those registers will also cause the update bit to be
1067 * written.
1068 */
1069 for (i = 0; i < ARRAY_SIZE(update_reg); i++)
1070 snd_soc_component_update_bits(component,
1071 update_reg[i], 0x100, 0x100);
1072
1073 /* Check property to configure the two loudspeaker outputs as
1074 * a single Bridge Tied Load output
1075 */
1076 if (of_property_read_bool(of_node, "nuvoton,spk-btl"))
1077 snd_soc_component_update_bits(component,
1078 NAU8822_REG_RIGHT_SPEAKER_CONTROL,
1079 NAU8822_RSUBBYP, NAU8822_RSUBBYP);
1080
1081 return 0;
1082 }
1083
1084 static const struct snd_soc_component_driver soc_component_dev_nau8822 = {
1085 .probe = nau8822_probe,
1086 .suspend = nau8822_suspend,
1087 .resume = nau8822_resume,
1088 .set_bias_level = nau8822_set_bias_level,
1089 .controls = nau8822_snd_controls,
1090 .num_controls = ARRAY_SIZE(nau8822_snd_controls),
1091 .dapm_widgets = nau8822_dapm_widgets,
1092 .num_dapm_widgets = ARRAY_SIZE(nau8822_dapm_widgets),
1093 .dapm_routes = nau8822_dapm_routes,
1094 .num_dapm_routes = ARRAY_SIZE(nau8822_dapm_routes),
1095 .idle_bias_on = 1,
1096 .use_pmdown_time = 1,
1097 .endianness = 1,
1098 };
1099
1100 static const struct regmap_config nau8822_regmap_config = {
1101 .reg_bits = 7,
1102 .val_bits = 9,
1103
1104 .max_register = NAU8822_REG_MAX_REGISTER,
1105 .volatile_reg = nau8822_volatile,
1106
1107 .readable_reg = nau8822_readable_reg,
1108 .writeable_reg = nau8822_writeable_reg,
1109
1110 .cache_type = REGCACHE_RBTREE,
1111 .reg_defaults = nau8822_reg_defaults,
1112 .num_reg_defaults = ARRAY_SIZE(nau8822_reg_defaults),
1113 };
1114
nau8822_i2c_probe(struct i2c_client * i2c)1115 static int nau8822_i2c_probe(struct i2c_client *i2c)
1116 {
1117 struct device *dev = &i2c->dev;
1118 struct nau8822 *nau8822 = dev_get_platdata(dev);
1119 int ret;
1120
1121 if (!nau8822) {
1122 nau8822 = devm_kzalloc(dev, sizeof(*nau8822), GFP_KERNEL);
1123 if (nau8822 == NULL)
1124 return -ENOMEM;
1125 }
1126 i2c_set_clientdata(i2c, nau8822);
1127
1128 nau8822->regmap = devm_regmap_init_i2c(i2c, &nau8822_regmap_config);
1129 if (IS_ERR(nau8822->regmap)) {
1130 ret = PTR_ERR(nau8822->regmap);
1131 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
1132 return ret;
1133 }
1134 nau8822->dev = dev;
1135
1136 /* Reset the codec */
1137 ret = regmap_write(nau8822->regmap, NAU8822_REG_RESET, 0x00);
1138 if (ret != 0) {
1139 dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
1140 return ret;
1141 }
1142
1143 ret = devm_snd_soc_register_component(dev, &soc_component_dev_nau8822,
1144 &nau8822_dai, 1);
1145 if (ret != 0) {
1146 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
1147 return ret;
1148 }
1149
1150 return 0;
1151 }
1152
1153 static const struct i2c_device_id nau8822_i2c_id[] = {
1154 { "nau8822", 0 },
1155 { }
1156 };
1157 MODULE_DEVICE_TABLE(i2c, nau8822_i2c_id);
1158
1159 #ifdef CONFIG_OF
1160 static const struct of_device_id nau8822_of_match[] = {
1161 { .compatible = "nuvoton,nau8822", },
1162 { }
1163 };
1164 MODULE_DEVICE_TABLE(of, nau8822_of_match);
1165 #endif
1166
1167 static struct i2c_driver nau8822_i2c_driver = {
1168 .driver = {
1169 .name = "nau8822",
1170 .of_match_table = of_match_ptr(nau8822_of_match),
1171 },
1172 .probe = nau8822_i2c_probe,
1173 .id_table = nau8822_i2c_id,
1174 };
1175 module_i2c_driver(nau8822_i2c_driver);
1176
1177 MODULE_DESCRIPTION("ASoC NAU8822 codec driver");
1178 MODULE_AUTHOR("David Lin <ctlin0@nuvoton.com>");
1179 MODULE_LICENSE("GPL v2");
1180