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
188 val = (u16 *)ucontrol->value.bytes.data;
189 reg = NAU8822_REG_EQ1;
190 for (i = 0; i < params->max / sizeof(u16); i++) {
191 reg_val = snd_soc_component_read(component, reg + i);
192 /* conversion of 16-bit integers between native CPU format
193 * and big endian format
194 */
195 reg_val = cpu_to_be16(reg_val);
196 memcpy(val + i, ®_val, sizeof(reg_val));
197 }
198
199 return 0;
200 }
201
202 /* The EQ parameters put function is to make configuration of 5 band equalizer
203 * control. These configuration includes central frequency, equalizer gain,
204 * cut-off frequency, bandwidth control, and equalizer path.
205 * The regmap raw write can't work here because regmap doesn't provide
206 * register and value format for register with address 7 bits and value 9 bits.
207 * Therefore, the driver makes value format according to the endianness of
208 * bytes type control element and writes data to codec.
209 */
nau8822_eq_put(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)210 static int nau8822_eq_put(struct snd_kcontrol *kcontrol,
211 struct snd_ctl_elem_value *ucontrol)
212 {
213 struct snd_soc_component *component =
214 snd_soc_kcontrol_component(kcontrol);
215 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
216 void *data;
217 u16 *val, value;
218 int i, reg, ret;
219
220 data = kmemdup(ucontrol->value.bytes.data,
221 params->max, GFP_KERNEL | GFP_DMA);
222 if (!data)
223 return -ENOMEM;
224
225 val = (u16 *)data;
226 reg = NAU8822_REG_EQ1;
227 for (i = 0; i < params->max / sizeof(u16); i++) {
228 /* conversion of 16-bit integers between native CPU format
229 * and big endian format
230 */
231 value = be16_to_cpu(*(val + i));
232 ret = snd_soc_component_write(component, reg + i, value);
233 if (ret) {
234 dev_err(component->dev,
235 "EQ configuration fail, register: %x ret: %d\n",
236 reg + i, ret);
237 kfree(data);
238 return ret;
239 }
240 }
241 kfree(data);
242
243 return 0;
244 }
245
246 static const char * const nau8822_companding[] = {
247 "Off", "NC", "u-law", "A-law"};
248
249 static const struct soc_enum nau8822_companding_adc_enum =
250 SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_ADCCM_SFT,
251 ARRAY_SIZE(nau8822_companding), nau8822_companding);
252
253 static const struct soc_enum nau8822_companding_dac_enum =
254 SOC_ENUM_SINGLE(NAU8822_REG_COMPANDING_CONTROL, NAU8822_DACCM_SFT,
255 ARRAY_SIZE(nau8822_companding), nau8822_companding);
256
257 static const char * const nau8822_eqmode[] = {"Capture", "Playback"};
258
259 static const struct soc_enum nau8822_eqmode_enum =
260 SOC_ENUM_SINGLE(NAU8822_REG_EQ1, NAU8822_EQM_SFT,
261 ARRAY_SIZE(nau8822_eqmode), nau8822_eqmode);
262
263 static const char * const nau8822_alc1[] = {"Off", "Right", "Left", "Both"};
264 static const char * const nau8822_alc3[] = {"Normal", "Limiter"};
265
266 static const struct soc_enum nau8822_alc_enable_enum =
267 SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_1, NAU8822_ALCEN_SFT,
268 ARRAY_SIZE(nau8822_alc1), nau8822_alc1);
269
270 static const struct soc_enum nau8822_alc_mode_enum =
271 SOC_ENUM_SINGLE(NAU8822_REG_ALC_CONTROL_3, NAU8822_ALCM_SFT,
272 ARRAY_SIZE(nau8822_alc3), nau8822_alc3);
273
274 static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1);
275 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1200, 75, 0);
276 static const DECLARE_TLV_DB_SCALE(spk_tlv, -5700, 100, 0);
277 static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0);
278 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1500, 300, 1);
279 static const DECLARE_TLV_DB_SCALE(limiter_tlv, 0, 100, 0);
280
281 static const struct snd_kcontrol_new nau8822_snd_controls[] = {
282 SOC_ENUM("ADC Companding", nau8822_companding_adc_enum),
283 SOC_ENUM("DAC Companding", nau8822_companding_dac_enum),
284
285 SOC_ENUM("EQ Function", nau8822_eqmode_enum),
286 SND_SOC_BYTES_EXT("EQ Parameters", 10,
287 nau8822_eq_get, nau8822_eq_put),
288
289 SOC_DOUBLE("DAC Inversion Switch",
290 NAU8822_REG_DAC_CONTROL, 0, 1, 1, 0),
291 SOC_DOUBLE_R_TLV("PCM Volume",
292 NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME,
293 NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv),
294
295 SOC_SINGLE("High Pass Filter Switch",
296 NAU8822_REG_ADC_CONTROL, 8, 1, 0),
297 SOC_SINGLE("High Pass Cut Off",
298 NAU8822_REG_ADC_CONTROL, 4, 7, 0),
299
300 SOC_DOUBLE("ADC Inversion Switch",
301 NAU8822_REG_ADC_CONTROL, 0, 1, 1, 0),
302 SOC_DOUBLE_R_TLV("ADC Volume",
303 NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME,
304 NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME, 0, 255, 0, digital_tlv),
305
306 SOC_SINGLE("DAC Limiter Switch",
307 NAU8822_REG_DAC_LIMITER_1, 8, 1, 0),
308 SOC_SINGLE("DAC Limiter Decay",
309 NAU8822_REG_DAC_LIMITER_1, 4, 15, 0),
310 SOC_SINGLE("DAC Limiter Attack",
311 NAU8822_REG_DAC_LIMITER_1, 0, 15, 0),
312 SOC_SINGLE("DAC Limiter Threshold",
313 NAU8822_REG_DAC_LIMITER_2, 4, 7, 0),
314 SOC_SINGLE_TLV("DAC Limiter Volume",
315 NAU8822_REG_DAC_LIMITER_2, 0, 12, 0, limiter_tlv),
316
317 SOC_ENUM("ALC Mode", nau8822_alc_mode_enum),
318 SOC_ENUM("ALC Enable Switch", nau8822_alc_enable_enum),
319 SOC_SINGLE("ALC Min Gain",
320 NAU8822_REG_ALC_CONTROL_1, 0, 7, 0),
321 SOC_SINGLE("ALC Max Gain",
322 NAU8822_REG_ALC_CONTROL_1, 3, 7, 0),
323 SOC_SINGLE("ALC Hold",
324 NAU8822_REG_ALC_CONTROL_2, 4, 10, 0),
325 SOC_SINGLE("ALC Target",
326 NAU8822_REG_ALC_CONTROL_2, 0, 15, 0),
327 SOC_SINGLE("ALC Decay",
328 NAU8822_REG_ALC_CONTROL_3, 4, 10, 0),
329 SOC_SINGLE("ALC Attack",
330 NAU8822_REG_ALC_CONTROL_3, 0, 10, 0),
331 SOC_SINGLE("ALC Noise Gate Switch",
332 NAU8822_REG_NOISE_GATE, 3, 1, 0),
333 SOC_SINGLE("ALC Noise Gate Threshold",
334 NAU8822_REG_NOISE_GATE, 0, 7, 0),
335
336 SOC_DOUBLE_R("PGA ZC Switch",
337 NAU8822_REG_LEFT_INP_PGA_CONTROL,
338 NAU8822_REG_RIGHT_INP_PGA_CONTROL,
339 7, 1, 0),
340 SOC_DOUBLE_R_TLV("PGA Volume",
341 NAU8822_REG_LEFT_INP_PGA_CONTROL,
342 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 0, 63, 0, inpga_tlv),
343
344 SOC_DOUBLE_R("Headphone ZC Switch",
345 NAU8822_REG_LHP_VOLUME,
346 NAU8822_REG_RHP_VOLUME, 7, 1, 0),
347 SOC_DOUBLE_R("Headphone Playback Switch",
348 NAU8822_REG_LHP_VOLUME,
349 NAU8822_REG_RHP_VOLUME, 6, 1, 1),
350 SOC_DOUBLE_R_TLV("Headphone Volume",
351 NAU8822_REG_LHP_VOLUME,
352 NAU8822_REG_RHP_VOLUME, 0, 63, 0, spk_tlv),
353
354 SOC_DOUBLE_R("Speaker ZC Switch",
355 NAU8822_REG_LSPKOUT_VOLUME,
356 NAU8822_REG_RSPKOUT_VOLUME, 7, 1, 0),
357 SOC_DOUBLE_R("Speaker Playback Switch",
358 NAU8822_REG_LSPKOUT_VOLUME,
359 NAU8822_REG_RSPKOUT_VOLUME, 6, 1, 1),
360 SOC_DOUBLE_R_TLV("Speaker Volume",
361 NAU8822_REG_LSPKOUT_VOLUME,
362 NAU8822_REG_RSPKOUT_VOLUME, 0, 63, 0, spk_tlv),
363
364 SOC_DOUBLE_R("AUXOUT Playback Switch",
365 NAU8822_REG_AUX2_MIXER,
366 NAU8822_REG_AUX1_MIXER, 6, 1, 1),
367
368 SOC_DOUBLE_R_TLV("PGA Boost Volume",
369 NAU8822_REG_LEFT_ADC_BOOST_CONTROL,
370 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 8, 1, 0, pga_boost_tlv),
371 SOC_DOUBLE_R_TLV("L2/R2 Boost Volume",
372 NAU8822_REG_LEFT_ADC_BOOST_CONTROL,
373 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 4, 7, 0, boost_tlv),
374 SOC_DOUBLE_R_TLV("Aux Boost Volume",
375 NAU8822_REG_LEFT_ADC_BOOST_CONTROL,
376 NAU8822_REG_RIGHT_ADC_BOOST_CONTROL, 0, 7, 0, boost_tlv),
377
378 SOC_SINGLE("DAC 128x Oversampling Switch",
379 NAU8822_REG_DAC_CONTROL, 5, 1, 0),
380 SOC_SINGLE("ADC 128x Oversampling Switch",
381 NAU8822_REG_ADC_CONTROL, 5, 1, 0),
382 };
383
384 /* LMAIN and RMAIN Mixer */
385 static const struct snd_kcontrol_new nau8822_left_out_mixer[] = {
386 SOC_DAPM_SINGLE("LINMIX Switch",
387 NAU8822_REG_LEFT_MIXER_CONTROL, 1, 1, 0),
388 SOC_DAPM_SINGLE("LAUX Switch",
389 NAU8822_REG_LEFT_MIXER_CONTROL, 5, 1, 0),
390 SOC_DAPM_SINGLE("LDAC Switch",
391 NAU8822_REG_LEFT_MIXER_CONTROL, 0, 1, 0),
392 SOC_DAPM_SINGLE("RDAC Switch",
393 NAU8822_REG_OUTPUT_CONTROL, 5, 1, 0),
394 };
395
396 static const struct snd_kcontrol_new nau8822_right_out_mixer[] = {
397 SOC_DAPM_SINGLE("RINMIX Switch",
398 NAU8822_REG_RIGHT_MIXER_CONTROL, 1, 1, 0),
399 SOC_DAPM_SINGLE("RAUX Switch",
400 NAU8822_REG_RIGHT_MIXER_CONTROL, 5, 1, 0),
401 SOC_DAPM_SINGLE("RDAC Switch",
402 NAU8822_REG_RIGHT_MIXER_CONTROL, 0, 1, 0),
403 SOC_DAPM_SINGLE("LDAC Switch",
404 NAU8822_REG_OUTPUT_CONTROL, 6, 1, 0),
405 };
406
407 /* AUX1 and AUX2 Mixer */
408 static const struct snd_kcontrol_new nau8822_auxout1_mixer[] = {
409 SOC_DAPM_SINGLE("RDAC Switch", NAU8822_REG_AUX1_MIXER, 0, 1, 0),
410 SOC_DAPM_SINGLE("RMIX Switch", NAU8822_REG_AUX1_MIXER, 1, 1, 0),
411 SOC_DAPM_SINGLE("RINMIX Switch", NAU8822_REG_AUX1_MIXER, 2, 1, 0),
412 SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX1_MIXER, 3, 1, 0),
413 SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX1_MIXER, 4, 1, 0),
414 };
415
416 static const struct snd_kcontrol_new nau8822_auxout2_mixer[] = {
417 SOC_DAPM_SINGLE("LDAC Switch", NAU8822_REG_AUX2_MIXER, 0, 1, 0),
418 SOC_DAPM_SINGLE("LMIX Switch", NAU8822_REG_AUX2_MIXER, 1, 1, 0),
419 SOC_DAPM_SINGLE("LINMIX Switch", NAU8822_REG_AUX2_MIXER, 2, 1, 0),
420 SOC_DAPM_SINGLE("AUX1MIX Output Switch",
421 NAU8822_REG_AUX2_MIXER, 3, 1, 0),
422 };
423
424 /* Input PGA */
425 static const struct snd_kcontrol_new nau8822_left_input_mixer[] = {
426 SOC_DAPM_SINGLE("L2 Switch", NAU8822_REG_INPUT_CONTROL, 2, 1, 0),
427 SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 1, 1, 0),
428 SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 0, 1, 0),
429 };
430 static const struct snd_kcontrol_new nau8822_right_input_mixer[] = {
431 SOC_DAPM_SINGLE("R2 Switch", NAU8822_REG_INPUT_CONTROL, 6, 1, 0),
432 SOC_DAPM_SINGLE("MicN Switch", NAU8822_REG_INPUT_CONTROL, 5, 1, 0),
433 SOC_DAPM_SINGLE("MicP Switch", NAU8822_REG_INPUT_CONTROL, 4, 1, 0),
434 };
435
436 /* Loopback Switch */
437 static const struct snd_kcontrol_new nau8822_loopback =
438 SOC_DAPM_SINGLE("Switch", NAU8822_REG_COMPANDING_CONTROL,
439 NAU8822_ADDAP_SFT, 1, 0);
440
check_mclk_select_pll(struct snd_soc_dapm_widget * source,struct snd_soc_dapm_widget * sink)441 static int check_mclk_select_pll(struct snd_soc_dapm_widget *source,
442 struct snd_soc_dapm_widget *sink)
443 {
444 struct snd_soc_component *component =
445 snd_soc_dapm_to_component(source->dapm);
446 unsigned int value;
447
448 value = snd_soc_component_read(component, NAU8822_REG_CLOCKING);
449
450 return (value & NAU8822_CLKM_MASK);
451 }
452
453 static const struct snd_soc_dapm_widget nau8822_dapm_widgets[] = {
454 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
455 NAU8822_REG_POWER_MANAGEMENT_3, 0, 0),
456 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
457 NAU8822_REG_POWER_MANAGEMENT_3, 1, 0),
458 SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture",
459 NAU8822_REG_POWER_MANAGEMENT_2, 0, 0),
460 SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture",
461 NAU8822_REG_POWER_MANAGEMENT_2, 1, 0),
462
463 SOC_MIXER_ARRAY("Left Output Mixer",
464 NAU8822_REG_POWER_MANAGEMENT_3, 2, 0, nau8822_left_out_mixer),
465 SOC_MIXER_ARRAY("Right Output Mixer",
466 NAU8822_REG_POWER_MANAGEMENT_3, 3, 0, nau8822_right_out_mixer),
467 SOC_MIXER_ARRAY("AUX1 Output Mixer",
468 NAU8822_REG_POWER_MANAGEMENT_1, 7, 0, nau8822_auxout1_mixer),
469 SOC_MIXER_ARRAY("AUX2 Output Mixer",
470 NAU8822_REG_POWER_MANAGEMENT_1, 6, 0, nau8822_auxout2_mixer),
471
472 SOC_MIXER_ARRAY("Left Input Mixer",
473 NAU8822_REG_POWER_MANAGEMENT_2,
474 2, 0, nau8822_left_input_mixer),
475 SOC_MIXER_ARRAY("Right Input Mixer",
476 NAU8822_REG_POWER_MANAGEMENT_2,
477 3, 0, nau8822_right_input_mixer),
478
479 SND_SOC_DAPM_PGA("Left Boost Mixer",
480 NAU8822_REG_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
481 SND_SOC_DAPM_PGA("Right Boost Mixer",
482 NAU8822_REG_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
483
484 SND_SOC_DAPM_PGA("Left Capture PGA",
485 NAU8822_REG_LEFT_INP_PGA_CONTROL, 6, 1, NULL, 0),
486 SND_SOC_DAPM_PGA("Right Capture PGA",
487 NAU8822_REG_RIGHT_INP_PGA_CONTROL, 6, 1, NULL, 0),
488
489 SND_SOC_DAPM_PGA("Left Headphone Out",
490 NAU8822_REG_POWER_MANAGEMENT_2, 7, 0, NULL, 0),
491 SND_SOC_DAPM_PGA("Right Headphone Out",
492 NAU8822_REG_POWER_MANAGEMENT_2, 8, 0, NULL, 0),
493
494 SND_SOC_DAPM_PGA("Left Speaker Out",
495 NAU8822_REG_POWER_MANAGEMENT_3, 6, 0, NULL, 0),
496 SND_SOC_DAPM_PGA("Right Speaker Out",
497 NAU8822_REG_POWER_MANAGEMENT_3, 5, 0, NULL, 0),
498
499 SND_SOC_DAPM_PGA("AUX1 Out",
500 NAU8822_REG_POWER_MANAGEMENT_3, 8, 0, NULL, 0),
501 SND_SOC_DAPM_PGA("AUX2 Out",
502 NAU8822_REG_POWER_MANAGEMENT_3, 7, 0, NULL, 0),
503
504 SND_SOC_DAPM_SUPPLY("Mic Bias",
505 NAU8822_REG_POWER_MANAGEMENT_1, 4, 0, NULL, 0),
506 SND_SOC_DAPM_SUPPLY("PLL",
507 NAU8822_REG_POWER_MANAGEMENT_1, 5, 0, NULL, 0),
508
509 SND_SOC_DAPM_SWITCH("Digital Loopback", SND_SOC_NOPM, 0, 0,
510 &nau8822_loopback),
511
512 SND_SOC_DAPM_INPUT("LMICN"),
513 SND_SOC_DAPM_INPUT("LMICP"),
514 SND_SOC_DAPM_INPUT("RMICN"),
515 SND_SOC_DAPM_INPUT("RMICP"),
516 SND_SOC_DAPM_INPUT("LAUX"),
517 SND_SOC_DAPM_INPUT("RAUX"),
518 SND_SOC_DAPM_INPUT("L2"),
519 SND_SOC_DAPM_INPUT("R2"),
520 SND_SOC_DAPM_OUTPUT("LHP"),
521 SND_SOC_DAPM_OUTPUT("RHP"),
522 SND_SOC_DAPM_OUTPUT("LSPK"),
523 SND_SOC_DAPM_OUTPUT("RSPK"),
524 SND_SOC_DAPM_OUTPUT("AUXOUT1"),
525 SND_SOC_DAPM_OUTPUT("AUXOUT2"),
526 };
527
528 static const struct snd_soc_dapm_route nau8822_dapm_routes[] = {
529 {"Right DAC", NULL, "PLL", check_mclk_select_pll},
530 {"Left DAC", NULL, "PLL", check_mclk_select_pll},
531
532 /* LMAIN and RMAIN Mixer */
533 {"Right Output Mixer", "LDAC Switch", "Left DAC"},
534 {"Right Output Mixer", "RDAC Switch", "Right DAC"},
535 {"Right Output Mixer", "RAUX Switch", "RAUX"},
536 {"Right Output Mixer", "RINMIX Switch", "Right Boost Mixer"},
537
538 {"Left Output Mixer", "LDAC Switch", "Left DAC"},
539 {"Left Output Mixer", "RDAC Switch", "Right DAC"},
540 {"Left Output Mixer", "LAUX Switch", "LAUX"},
541 {"Left Output Mixer", "LINMIX Switch", "Left Boost Mixer"},
542
543 /* AUX1 and AUX2 Mixer */
544 {"AUX1 Output Mixer", "RDAC Switch", "Right DAC"},
545 {"AUX1 Output Mixer", "RMIX Switch", "Right Output Mixer"},
546 {"AUX1 Output Mixer", "RINMIX Switch", "Right Boost Mixer"},
547 {"AUX1 Output Mixer", "LDAC Switch", "Left DAC"},
548 {"AUX1 Output Mixer", "LMIX Switch", "Left Output Mixer"},
549
550 {"AUX2 Output Mixer", "LDAC Switch", "Left DAC"},
551 {"AUX2 Output Mixer", "LMIX Switch", "Left Output Mixer"},
552 {"AUX2 Output Mixer", "LINMIX Switch", "Left Boost Mixer"},
553 {"AUX2 Output Mixer", "AUX1MIX Output Switch", "AUX1 Output Mixer"},
554
555 /* Outputs */
556 {"Right Headphone Out", NULL, "Right Output Mixer"},
557 {"RHP", NULL, "Right Headphone Out"},
558
559 {"Left Headphone Out", NULL, "Left Output Mixer"},
560 {"LHP", NULL, "Left Headphone Out"},
561
562 {"Right Speaker Out", NULL, "Right Output Mixer"},
563 {"RSPK", NULL, "Right Speaker Out"},
564
565 {"Left Speaker Out", NULL, "Left Output Mixer"},
566 {"LSPK", NULL, "Left Speaker Out"},
567
568 {"AUX1 Out", NULL, "AUX1 Output Mixer"},
569 {"AUX2 Out", NULL, "AUX2 Output Mixer"},
570 {"AUXOUT1", NULL, "AUX1 Out"},
571 {"AUXOUT2", NULL, "AUX2 Out"},
572
573 /* Boost Mixer */
574 {"Right ADC", NULL, "PLL", check_mclk_select_pll},
575 {"Left ADC", NULL, "PLL", check_mclk_select_pll},
576
577 {"Right ADC", NULL, "Right Boost Mixer"},
578
579 {"Right Boost Mixer", NULL, "RAUX"},
580 {"Right Boost Mixer", NULL, "Right Capture PGA"},
581 {"Right Boost Mixer", NULL, "R2"},
582
583 {"Left ADC", NULL, "Left Boost Mixer"},
584
585 {"Left Boost Mixer", NULL, "LAUX"},
586 {"Left Boost Mixer", NULL, "Left Capture PGA"},
587 {"Left Boost Mixer", NULL, "L2"},
588
589 /* Input PGA */
590 {"Right Capture PGA", NULL, "Right Input Mixer"},
591 {"Left Capture PGA", NULL, "Left Input Mixer"},
592
593 /* Enable Microphone Power */
594 {"Right Capture PGA", NULL, "Mic Bias"},
595 {"Left Capture PGA", NULL, "Mic Bias"},
596
597 {"Right Input Mixer", "R2 Switch", "R2"},
598 {"Right Input Mixer", "MicN Switch", "RMICN"},
599 {"Right Input Mixer", "MicP Switch", "RMICP"},
600
601 {"Left Input Mixer", "L2 Switch", "L2"},
602 {"Left Input Mixer", "MicN Switch", "LMICN"},
603 {"Left Input Mixer", "MicP Switch", "LMICP"},
604
605 /* Digital Loopback */
606 {"Digital Loopback", "Switch", "Left ADC"},
607 {"Digital Loopback", "Switch", "Right ADC"},
608 {"Left DAC", NULL, "Digital Loopback"},
609 {"Right DAC", NULL, "Digital Loopback"},
610 };
611
nau8822_set_dai_sysclk(struct snd_soc_dai * dai,int clk_id,unsigned int freq,int dir)612 static int nau8822_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
613 unsigned int freq, int dir)
614 {
615 struct snd_soc_component *component = dai->component;
616 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
617
618 nau8822->div_id = clk_id;
619 nau8822->sysclk = freq;
620 dev_dbg(component->dev, "master sysclk %dHz, source %s\n", freq,
621 clk_id == NAU8822_CLK_PLL ? "PLL" : "MCLK");
622
623 return 0;
624 }
625
nau8822_calc_pll(unsigned int pll_in,unsigned int fs,struct nau8822_pll * pll_param)626 static int nau8822_calc_pll(unsigned int pll_in, unsigned int fs,
627 struct nau8822_pll *pll_param)
628 {
629 u64 f2, f2_max, pll_ratio;
630 int i, scal_sel;
631
632 if (pll_in > NAU_PLL_REF_MAX || pll_in < NAU_PLL_REF_MIN)
633 return -EINVAL;
634 f2_max = 0;
635 scal_sel = ARRAY_SIZE(nau8822_mclk_scaler);
636
637 for (i = 0; i < scal_sel; i++) {
638 f2 = 256 * fs * 4 * nau8822_mclk_scaler[i] / 10;
639 if (f2 > NAU_PLL_FREQ_MIN && f2 < NAU_PLL_FREQ_MAX &&
640 f2_max < f2) {
641 f2_max = f2;
642 scal_sel = i;
643 }
644 }
645
646 if (ARRAY_SIZE(nau8822_mclk_scaler) == scal_sel)
647 return -EINVAL;
648 pll_param->mclk_scaler = scal_sel;
649 f2 = f2_max;
650
651 /* Calculate the PLL 4-bit integer input and the PLL 24-bit fractional
652 * input; round up the 24+4bit.
653 */
654 pll_ratio = div_u64(f2 << 28, pll_in);
655 pll_param->pre_factor = 0;
656 if (((pll_ratio >> 28) & 0xF) < NAU_PLL_OPTOP_MIN) {
657 pll_ratio <<= 1;
658 pll_param->pre_factor = 1;
659 }
660 pll_param->pll_int = (pll_ratio >> 28) & 0xF;
661 pll_param->pll_frac = ((pll_ratio & 0xFFFFFFF) >> 4);
662
663 return 0;
664 }
665
nau8822_config_clkdiv(struct snd_soc_dai * dai,int div,int rate)666 static int nau8822_config_clkdiv(struct snd_soc_dai *dai, int div, int rate)
667 {
668 struct snd_soc_component *component = dai->component;
669 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
670 struct nau8822_pll *pll = &nau8822->pll;
671 int i, sclk, imclk;
672
673 switch (nau8822->div_id) {
674 case NAU8822_CLK_MCLK:
675 /* Configure the master clock prescaler div to make system
676 * clock to approximate the internal master clock (IMCLK);
677 * and large or equal to IMCLK.
678 */
679 div = 0;
680 imclk = rate * 256;
681 for (i = 1; i < ARRAY_SIZE(nau8822_mclk_scaler); i++) {
682 sclk = (nau8822->sysclk * 10) / nau8822_mclk_scaler[i];
683 if (sclk < imclk)
684 break;
685 div = i;
686 }
687 dev_dbg(component->dev, "master clock prescaler %x for fs %d\n",
688 div, rate);
689
690 /* master clock from MCLK and disable PLL */
691 snd_soc_component_update_bits(component,
692 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK,
693 (div << NAU8822_MCLKSEL_SFT));
694 snd_soc_component_update_bits(component,
695 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK,
696 NAU8822_CLKM_MCLK);
697 break;
698
699 case NAU8822_CLK_PLL:
700 /* master clock from PLL and enable PLL */
701 if (pll->mclk_scaler != div) {
702 dev_err(component->dev,
703 "master clock prescaler not meet PLL parameters\n");
704 return -EINVAL;
705 }
706 snd_soc_component_update_bits(component,
707 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK,
708 (div << NAU8822_MCLKSEL_SFT));
709 snd_soc_component_update_bits(component,
710 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK,
711 NAU8822_CLKM_PLL);
712 break;
713
714 default:
715 return -EINVAL;
716 }
717
718 return 0;
719 }
720
nau8822_set_pll(struct snd_soc_dai * dai,int pll_id,int source,unsigned int freq_in,unsigned int freq_out)721 static int nau8822_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
722 unsigned int freq_in, unsigned int freq_out)
723 {
724 struct snd_soc_component *component = dai->component;
725 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
726 struct nau8822_pll *pll_param = &nau8822->pll;
727 int ret, fs;
728
729 fs = freq_out / 256;
730
731 ret = nau8822_calc_pll(freq_in, fs, pll_param);
732 if (ret < 0) {
733 dev_err(component->dev, "Unsupported input clock %d\n",
734 freq_in);
735 return ret;
736 }
737
738 dev_info(component->dev,
739 "pll_int=%x pll_frac=%x mclk_scaler=%x pre_factor=%x\n",
740 pll_param->pll_int, pll_param->pll_frac,
741 pll_param->mclk_scaler, pll_param->pre_factor);
742
743 snd_soc_component_update_bits(component,
744 NAU8822_REG_PLL_N, NAU8822_PLLMCLK_DIV2 | NAU8822_PLLN_MASK,
745 (pll_param->pre_factor ? NAU8822_PLLMCLK_DIV2 : 0) |
746 pll_param->pll_int);
747 snd_soc_component_write(component,
748 NAU8822_REG_PLL_K1, (pll_param->pll_frac >> NAU8822_PLLK1_SFT) &
749 NAU8822_PLLK1_MASK);
750 snd_soc_component_write(component,
751 NAU8822_REG_PLL_K2, (pll_param->pll_frac >> NAU8822_PLLK2_SFT) &
752 NAU8822_PLLK2_MASK);
753 snd_soc_component_write(component,
754 NAU8822_REG_PLL_K3, pll_param->pll_frac & NAU8822_PLLK3_MASK);
755 snd_soc_component_update_bits(component,
756 NAU8822_REG_CLOCKING, NAU8822_MCLKSEL_MASK,
757 pll_param->mclk_scaler << NAU8822_MCLKSEL_SFT);
758 snd_soc_component_update_bits(component,
759 NAU8822_REG_CLOCKING, NAU8822_CLKM_MASK, NAU8822_CLKM_PLL);
760
761 return 0;
762 }
763
nau8822_set_dai_fmt(struct snd_soc_dai * dai,unsigned int fmt)764 static int nau8822_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
765 {
766 struct snd_soc_component *component = dai->component;
767 u16 ctrl1_val = 0, ctrl2_val = 0;
768
769 dev_dbg(component->dev, "%s\n", __func__);
770
771 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
772 case SND_SOC_DAIFMT_CBM_CFM:
773 ctrl2_val |= 1;
774 break;
775 case SND_SOC_DAIFMT_CBS_CFS:
776 ctrl2_val &= ~1;
777 break;
778 default:
779 return -EINVAL;
780 }
781
782 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
783 case SND_SOC_DAIFMT_I2S:
784 ctrl1_val |= 0x10;
785 break;
786 case SND_SOC_DAIFMT_RIGHT_J:
787 break;
788 case SND_SOC_DAIFMT_LEFT_J:
789 ctrl1_val |= 0x8;
790 break;
791 case SND_SOC_DAIFMT_DSP_A:
792 ctrl1_val |= 0x18;
793 break;
794 default:
795 return -EINVAL;
796 }
797
798 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
799 case SND_SOC_DAIFMT_NB_NF:
800 break;
801 case SND_SOC_DAIFMT_IB_IF:
802 ctrl1_val |= 0x180;
803 break;
804 case SND_SOC_DAIFMT_IB_NF:
805 ctrl1_val |= 0x100;
806 break;
807 case SND_SOC_DAIFMT_NB_IF:
808 ctrl1_val |= 0x80;
809 break;
810 default:
811 return -EINVAL;
812 }
813
814 snd_soc_component_update_bits(component,
815 NAU8822_REG_AUDIO_INTERFACE,
816 NAU8822_AIFMT_MASK | NAU8822_LRP_MASK | NAU8822_BCLKP_MASK,
817 ctrl1_val);
818 snd_soc_component_update_bits(component,
819 NAU8822_REG_CLOCKING, NAU8822_CLKIOEN_MASK, ctrl2_val);
820
821 return 0;
822 }
823
nau8822_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)824 static int nau8822_hw_params(struct snd_pcm_substream *substream,
825 struct snd_pcm_hw_params *params,
826 struct snd_soc_dai *dai)
827 {
828 struct snd_soc_component *component = dai->component;
829 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
830 int val_len = 0, val_rate = 0;
831 unsigned int ctrl_val, bclk_fs, bclk_div;
832
833 /* make BCLK and LRC divide configuration if the codec as master. */
834 ctrl_val = snd_soc_component_read(component, NAU8822_REG_CLOCKING);
835 if (ctrl_val & NAU8822_CLK_MASTER) {
836 /* get the bclk and fs ratio */
837 bclk_fs = snd_soc_params_to_bclk(params) / params_rate(params);
838 if (bclk_fs <= 32)
839 bclk_div = NAU8822_BCLKDIV_8;
840 else if (bclk_fs <= 64)
841 bclk_div = NAU8822_BCLKDIV_4;
842 else if (bclk_fs <= 128)
843 bclk_div = NAU8822_BCLKDIV_2;
844 else
845 return -EINVAL;
846 snd_soc_component_update_bits(component, NAU8822_REG_CLOCKING,
847 NAU8822_BCLKSEL_MASK, bclk_div);
848 }
849
850 switch (params_format(params)) {
851 case SNDRV_PCM_FORMAT_S16_LE:
852 break;
853 case SNDRV_PCM_FORMAT_S20_3LE:
854 val_len |= NAU8822_WLEN_20;
855 break;
856 case SNDRV_PCM_FORMAT_S24_LE:
857 val_len |= NAU8822_WLEN_24;
858 break;
859 case SNDRV_PCM_FORMAT_S32_LE:
860 val_len |= NAU8822_WLEN_32;
861 break;
862 default:
863 return -EINVAL;
864 }
865
866 switch (params_rate(params)) {
867 case 8000:
868 val_rate |= NAU8822_SMPLR_8K;
869 break;
870 case 11025:
871 val_rate |= NAU8822_SMPLR_12K;
872 break;
873 case 16000:
874 val_rate |= NAU8822_SMPLR_16K;
875 break;
876 case 22050:
877 val_rate |= NAU8822_SMPLR_24K;
878 break;
879 case 32000:
880 val_rate |= NAU8822_SMPLR_32K;
881 break;
882 case 44100:
883 case 48000:
884 break;
885 default:
886 return -EINVAL;
887 }
888
889 snd_soc_component_update_bits(component,
890 NAU8822_REG_AUDIO_INTERFACE, NAU8822_WLEN_MASK, val_len);
891 snd_soc_component_update_bits(component,
892 NAU8822_REG_ADDITIONAL_CONTROL, NAU8822_SMPLR_MASK, val_rate);
893
894 /* If the master clock is from MCLK, provide the runtime FS for driver
895 * to get the master clock prescaler configuration.
896 */
897 if (nau8822->div_id == NAU8822_CLK_MCLK)
898 nau8822_config_clkdiv(dai, 0, params_rate(params));
899
900 return 0;
901 }
902
nau8822_mute(struct snd_soc_dai * dai,int mute,int direction)903 static int nau8822_mute(struct snd_soc_dai *dai, int mute, int direction)
904 {
905 struct snd_soc_component *component = dai->component;
906
907 dev_dbg(component->dev, "%s: %d\n", __func__, mute);
908
909 if (mute)
910 snd_soc_component_update_bits(component,
911 NAU8822_REG_DAC_CONTROL, 0x40, 0x40);
912 else
913 snd_soc_component_update_bits(component,
914 NAU8822_REG_DAC_CONTROL, 0x40, 0);
915
916 return 0;
917 }
918
nau8822_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)919 static int nau8822_set_bias_level(struct snd_soc_component *component,
920 enum snd_soc_bias_level level)
921 {
922 switch (level) {
923 case SND_SOC_BIAS_ON:
924 case SND_SOC_BIAS_PREPARE:
925 snd_soc_component_update_bits(component,
926 NAU8822_REG_POWER_MANAGEMENT_1,
927 NAU8822_REFIMP_MASK, NAU8822_REFIMP_80K);
928 break;
929
930 case SND_SOC_BIAS_STANDBY:
931 snd_soc_component_update_bits(component,
932 NAU8822_REG_POWER_MANAGEMENT_1,
933 NAU8822_IOBUF_EN | NAU8822_ABIAS_EN,
934 NAU8822_IOBUF_EN | NAU8822_ABIAS_EN);
935
936 if (snd_soc_component_get_bias_level(component) ==
937 SND_SOC_BIAS_OFF) {
938 snd_soc_component_update_bits(component,
939 NAU8822_REG_POWER_MANAGEMENT_1,
940 NAU8822_REFIMP_MASK, NAU8822_REFIMP_3K);
941 mdelay(100);
942 }
943 snd_soc_component_update_bits(component,
944 NAU8822_REG_POWER_MANAGEMENT_1,
945 NAU8822_REFIMP_MASK, NAU8822_REFIMP_300K);
946 break;
947
948 case SND_SOC_BIAS_OFF:
949 snd_soc_component_write(component,
950 NAU8822_REG_POWER_MANAGEMENT_1, 0);
951 snd_soc_component_write(component,
952 NAU8822_REG_POWER_MANAGEMENT_2, 0);
953 snd_soc_component_write(component,
954 NAU8822_REG_POWER_MANAGEMENT_3, 0);
955 break;
956 }
957
958 dev_dbg(component->dev, "%s: %d\n", __func__, level);
959
960 return 0;
961 }
962
963 #define NAU8822_RATES (SNDRV_PCM_RATE_8000_48000)
964
965 #define NAU8822_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
966 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
967
968 static const struct snd_soc_dai_ops nau8822_dai_ops = {
969 .hw_params = nau8822_hw_params,
970 .mute_stream = nau8822_mute,
971 .set_fmt = nau8822_set_dai_fmt,
972 .set_sysclk = nau8822_set_dai_sysclk,
973 .set_pll = nau8822_set_pll,
974 .no_capture_mute = 1,
975 };
976
977 static struct snd_soc_dai_driver nau8822_dai = {
978 .name = "nau8822-hifi",
979 .playback = {
980 .stream_name = "Playback",
981 .channels_min = 1,
982 .channels_max = 2,
983 .rates = NAU8822_RATES,
984 .formats = NAU8822_FORMATS,
985 },
986 .capture = {
987 .stream_name = "Capture",
988 .channels_min = 1,
989 .channels_max = 2,
990 .rates = NAU8822_RATES,
991 .formats = NAU8822_FORMATS,
992 },
993 .ops = &nau8822_dai_ops,
994 .symmetric_rates = 1,
995 };
996
nau8822_suspend(struct snd_soc_component * component)997 static int nau8822_suspend(struct snd_soc_component *component)
998 {
999 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
1000
1001 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
1002
1003 regcache_mark_dirty(nau8822->regmap);
1004
1005 return 0;
1006 }
1007
nau8822_resume(struct snd_soc_component * component)1008 static int nau8822_resume(struct snd_soc_component *component)
1009 {
1010 struct nau8822 *nau8822 = snd_soc_component_get_drvdata(component);
1011
1012 regcache_sync(nau8822->regmap);
1013
1014 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
1015
1016 return 0;
1017 }
1018
1019 /*
1020 * These registers contain an "update" bit - bit 8. This means, for example,
1021 * that one can write new DAC digital volume for both channels, but only when
1022 * the update bit is set, will also the volume be updated - simultaneously for
1023 * both channels.
1024 */
1025 static const int update_reg[] = {
1026 NAU8822_REG_LEFT_DAC_DIGITAL_VOLUME,
1027 NAU8822_REG_RIGHT_DAC_DIGITAL_VOLUME,
1028 NAU8822_REG_LEFT_ADC_DIGITAL_VOLUME,
1029 NAU8822_REG_RIGHT_ADC_DIGITAL_VOLUME,
1030 NAU8822_REG_LEFT_INP_PGA_CONTROL,
1031 NAU8822_REG_RIGHT_INP_PGA_CONTROL,
1032 NAU8822_REG_LHP_VOLUME,
1033 NAU8822_REG_RHP_VOLUME,
1034 NAU8822_REG_LSPKOUT_VOLUME,
1035 NAU8822_REG_RSPKOUT_VOLUME,
1036 };
1037
nau8822_probe(struct snd_soc_component * component)1038 static int nau8822_probe(struct snd_soc_component *component)
1039 {
1040 int i;
1041
1042 /*
1043 * Set the update bit in all registers, that have one. This way all
1044 * writes to those registers will also cause the update bit to be
1045 * written.
1046 */
1047 for (i = 0; i < ARRAY_SIZE(update_reg); i++)
1048 snd_soc_component_update_bits(component,
1049 update_reg[i], 0x100, 0x100);
1050
1051 return 0;
1052 }
1053
1054 static const struct snd_soc_component_driver soc_component_dev_nau8822 = {
1055 .probe = nau8822_probe,
1056 .suspend = nau8822_suspend,
1057 .resume = nau8822_resume,
1058 .set_bias_level = nau8822_set_bias_level,
1059 .controls = nau8822_snd_controls,
1060 .num_controls = ARRAY_SIZE(nau8822_snd_controls),
1061 .dapm_widgets = nau8822_dapm_widgets,
1062 .num_dapm_widgets = ARRAY_SIZE(nau8822_dapm_widgets),
1063 .dapm_routes = nau8822_dapm_routes,
1064 .num_dapm_routes = ARRAY_SIZE(nau8822_dapm_routes),
1065 .idle_bias_on = 1,
1066 .use_pmdown_time = 1,
1067 .endianness = 1,
1068 .non_legacy_dai_naming = 1,
1069 };
1070
1071 static const struct regmap_config nau8822_regmap_config = {
1072 .reg_bits = 7,
1073 .val_bits = 9,
1074
1075 .max_register = NAU8822_REG_MAX_REGISTER,
1076 .volatile_reg = nau8822_volatile,
1077
1078 .readable_reg = nau8822_readable_reg,
1079 .writeable_reg = nau8822_writeable_reg,
1080
1081 .cache_type = REGCACHE_RBTREE,
1082 .reg_defaults = nau8822_reg_defaults,
1083 .num_reg_defaults = ARRAY_SIZE(nau8822_reg_defaults),
1084 };
1085
nau8822_i2c_probe(struct i2c_client * i2c,const struct i2c_device_id * id)1086 static int nau8822_i2c_probe(struct i2c_client *i2c,
1087 const struct i2c_device_id *id)
1088 {
1089 struct device *dev = &i2c->dev;
1090 struct nau8822 *nau8822 = dev_get_platdata(dev);
1091 int ret;
1092
1093 if (!nau8822) {
1094 nau8822 = devm_kzalloc(dev, sizeof(*nau8822), GFP_KERNEL);
1095 if (nau8822 == NULL)
1096 return -ENOMEM;
1097 }
1098 i2c_set_clientdata(i2c, nau8822);
1099
1100 nau8822->regmap = devm_regmap_init_i2c(i2c, &nau8822_regmap_config);
1101 if (IS_ERR(nau8822->regmap)) {
1102 ret = PTR_ERR(nau8822->regmap);
1103 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
1104 return ret;
1105 }
1106 nau8822->dev = dev;
1107
1108 /* Reset the codec */
1109 ret = regmap_write(nau8822->regmap, NAU8822_REG_RESET, 0x00);
1110 if (ret != 0) {
1111 dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
1112 return ret;
1113 }
1114
1115 ret = devm_snd_soc_register_component(dev, &soc_component_dev_nau8822,
1116 &nau8822_dai, 1);
1117 if (ret != 0) {
1118 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
1119 return ret;
1120 }
1121
1122 return 0;
1123 }
1124
1125 static const struct i2c_device_id nau8822_i2c_id[] = {
1126 { "nau8822", 0 },
1127 { }
1128 };
1129 MODULE_DEVICE_TABLE(i2c, nau8822_i2c_id);
1130
1131 #ifdef CONFIG_OF
1132 static const struct of_device_id nau8822_of_match[] = {
1133 { .compatible = "nuvoton,nau8822", },
1134 { }
1135 };
1136 MODULE_DEVICE_TABLE(of, nau8822_of_match);
1137 #endif
1138
1139 static struct i2c_driver nau8822_i2c_driver = {
1140 .driver = {
1141 .name = "nau8822",
1142 .of_match_table = of_match_ptr(nau8822_of_match),
1143 },
1144 .probe = nau8822_i2c_probe,
1145 .id_table = nau8822_i2c_id,
1146 };
1147 module_i2c_driver(nau8822_i2c_driver);
1148
1149 MODULE_DESCRIPTION("ASoC NAU8822 codec driver");
1150 MODULE_AUTHOR("David Lin <ctlin0@nuvoton.com>");
1151 MODULE_LICENSE("GPL v2");
1152
