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TOMOYO Linux Cross Reference
Linux/sound/soc/codecs/tda7419.c

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  1 // SPDX-License-Identifier: GPL-2.0-only
  2 /*
  3  * TDA7419 audio processor driver
  4  *
  5  * Copyright 2018 Konsulko Group
  6  *
  7  * Author: Matt Porter <mporter@konsulko.com>
  8  */
  9 
 10 #include <linux/i2c.h>
 11 #include <linux/init.h>
 12 #include <linux/module.h>
 13 #include <linux/regmap.h>
 14 #include <sound/core.h>
 15 #include <sound/control.h>
 16 #include <sound/soc.h>
 17 #include <sound/tlv.h>
 18 
 19 #define TDA7419_MAIN_SRC_REG            0x00
 20 #define TDA7419_LOUDNESS_REG            0x01
 21 #define TDA7419_MUTE_CLK_REG            0x02
 22 #define TDA7419_VOLUME_REG              0x03
 23 #define TDA7419_TREBLE_REG              0x04
 24 #define TDA7419_MIDDLE_REG              0x05
 25 #define TDA7419_BASS_REG                0x06
 26 #define TDA7419_SECOND_SRC_REG          0x07
 27 #define TDA7419_SUB_MID_BASS_REG        0x08
 28 #define TDA7419_MIXING_GAIN_REG         0x09
 29 #define TDA7419_ATTENUATOR_LF_REG       0x0a
 30 #define TDA7419_ATTENUATOR_RF_REG       0x0b
 31 #define TDA7419_ATTENUATOR_LR_REG       0x0c
 32 #define TDA7419_ATTENUATOR_RR_REG       0x0d
 33 #define TDA7419_MIXING_LEVEL_REG        0x0e
 34 #define TDA7419_ATTENUATOR_SUB_REG      0x0f
 35 #define TDA7419_SA_CLK_AC_REG           0x10
 36 #define TDA7419_TESTING_REG             0x11
 37 
 38 #define TDA7419_MAIN_SRC_SEL            0
 39 #define TDA7419_MAIN_SRC_GAIN           3
 40 #define TDA7419_MAIN_SRC_AUTOZERO       7
 41 
 42 #define TDA7419_LOUDNESS_ATTEN          0
 43 #define TDA7419_LOUDNESS_CENTER_FREQ    4
 44 #define TDA7419_LOUDNESS_BOOST          6
 45 #define TDA7419_LOUDNESS_SOFT_STEP      7
 46 
 47 #define TDA7419_VOLUME_SOFT_STEP        7
 48 
 49 #define TDA7419_SOFT_MUTE               0
 50 #define TDA7419_MUTE_INFLUENCE          1
 51 #define TDA7419_SOFT_MUTE_TIME          2
 52 #define TDA7419_SOFT_STEP_TIME          4
 53 #define TDA7419_CLK_FAST_MODE           7
 54 
 55 #define TDA7419_TREBLE_CENTER_FREQ      5
 56 #define TDA7419_REF_OUT_SELECT          7
 57 
 58 #define TDA7419_MIDDLE_Q_FACTOR         5
 59 #define TDA7419_MIDDLE_SOFT_STEP        7
 60 
 61 #define TDA7419_BASS_Q_FACTOR           5
 62 #define TDA7419_BASS_SOFT_STEP          7
 63 
 64 #define TDA7419_SECOND_SRC_SEL          0
 65 #define TDA7419_SECOND_SRC_GAIN         3
 66 #define TDA7419_REAR_SPKR_SRC           7
 67 
 68 #define TDA7419_SUB_CUT_OFF_FREQ        0
 69 #define TDA7419_MIDDLE_CENTER_FREQ      2
 70 #define TDA7419_BASS_CENTER_FREQ        4
 71 #define TDA7419_BASS_DC_MODE            6
 72 #define TDA7419_SMOOTHING_FILTER        7
 73 
 74 #define TDA7419_MIX_LF                  0
 75 #define TDA7419_MIX_RF                  1
 76 #define TDA7419_MIX_ENABLE              2
 77 #define TDA7419_SUB_ENABLE              3
 78 #define TDA7419_HPF_GAIN                4
 79 
 80 #define TDA7419_SA_Q_FACTOR             0
 81 #define TDA7419_RESET_MODE              1
 82 #define TDA7419_SA_SOURCE               2
 83 #define TDA7419_SA_RUN                  3
 84 #define TDA7419_RESET                   4
 85 #define TDA7419_CLK_SOURCE              5
 86 #define TDA7419_COUPLING_MODE           6
 87 
 88 struct tda7419_data {
 89         struct regmap *regmap;
 90 };
 91 
 92 static bool tda7419_readable_reg(struct device *dev, unsigned int reg)
 93 {
 94         return false;
 95 }
 96 
 97 static const struct reg_default tda7419_regmap_defaults[] = {
 98         { TDA7419_MAIN_SRC_REG, 0xfe },
 99         { TDA7419_LOUDNESS_REG, 0xfe },
100         { TDA7419_MUTE_CLK_REG, 0xfe },
101         { TDA7419_VOLUME_REG, 0xfe },
102         { TDA7419_TREBLE_REG, 0xfe },
103         { TDA7419_MIDDLE_REG, 0xfe },
104         { TDA7419_BASS_REG, 0xfe },
105         { TDA7419_SECOND_SRC_REG, 0xfe },
106         { TDA7419_SUB_MID_BASS_REG, 0xfe },
107         { TDA7419_MIXING_GAIN_REG, 0xfe },
108         { TDA7419_ATTENUATOR_LF_REG, 0xfe },
109         { TDA7419_ATTENUATOR_RF_REG, 0xfe },
110         { TDA7419_ATTENUATOR_LR_REG, 0xfe },
111         { TDA7419_ATTENUATOR_RR_REG, 0xfe },
112         { TDA7419_MIXING_LEVEL_REG, 0xfe },
113         { TDA7419_ATTENUATOR_SUB_REG, 0xfe },
114         { TDA7419_SA_CLK_AC_REG, 0xfe },
115         { TDA7419_TESTING_REG, 0xfe },
116 };
117 
118 static const struct regmap_config tda7419_regmap_config = {
119         .reg_bits = 8,
120         .val_bits = 8,
121         .max_register = TDA7419_TESTING_REG,
122         .cache_type = REGCACHE_RBTREE,
123         .readable_reg = tda7419_readable_reg,
124         .reg_defaults = tda7419_regmap_defaults,
125         .num_reg_defaults = ARRAY_SIZE(tda7419_regmap_defaults),
126 };
127 
128 struct tda7419_vol_control {
129         int min, max;
130         unsigned int reg, rreg, mask, thresh;
131         unsigned int invert:1;
132 };
133 
134 static inline bool tda7419_vol_is_stereo(struct tda7419_vol_control *tvc)
135 {
136         if (tvc->reg == tvc->rreg)
137                 return false;
138 
139         return true;
140 }
141 
142 static int tda7419_vol_info(struct snd_kcontrol *kcontrol,
143         struct snd_ctl_elem_info *uinfo)
144 {
145         struct tda7419_vol_control *tvc =
146                 (struct tda7419_vol_control *)kcontrol->private_value;
147 
148         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
149         uinfo->count = tda7419_vol_is_stereo(tvc) ? 2 : 1;
150         uinfo->value.integer.min = tvc->min;
151         uinfo->value.integer.max = tvc->max;
152 
153         return 0;
154 }
155 
156 static inline int tda7419_vol_get_value(int val, unsigned int mask,
157                                         int min, int thresh,
158                                         unsigned int invert)
159 {
160         val &= mask;
161         if (val < thresh) {
162                 if (invert)
163                         val = 0 - val;
164         } else if (val > thresh) {
165                 if (invert)
166                         val = val - thresh;
167                 else
168                         val = thresh - val;
169         }
170 
171         if (val < min)
172                 val = min;
173 
174         return val;
175 }
176 
177 static int tda7419_vol_get(struct snd_kcontrol *kcontrol,
178                            struct snd_ctl_elem_value *ucontrol)
179 {
180         struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
181         struct tda7419_vol_control *tvc =
182                 (struct tda7419_vol_control *)kcontrol->private_value;
183         unsigned int reg = tvc->reg;
184         unsigned int rreg = tvc->rreg;
185         unsigned int mask = tvc->mask;
186         int min = tvc->min;
187         int thresh = tvc->thresh;
188         unsigned int invert = tvc->invert;
189         int val;
190         int ret;
191 
192         ret = snd_soc_component_read(component, reg, &val);
193         if (ret < 0)
194                 return ret;
195         ucontrol->value.integer.value[0] =
196                 tda7419_vol_get_value(val, mask, min, thresh, invert);
197 
198         if (tda7419_vol_is_stereo(tvc)) {
199                 ret = snd_soc_component_read(component, rreg, &val);
200                 if (ret < 0)
201                         return ret;
202                 ucontrol->value.integer.value[1] =
203                         tda7419_vol_get_value(val, mask, min, thresh, invert);
204         }
205 
206         return 0;
207 }
208 
209 static inline int tda7419_vol_put_value(int val, int thresh,
210                                         unsigned int invert)
211 {
212         if (val < 0) {
213                 if (invert)
214                         val = abs(val);
215                 else
216                         val = thresh - val;
217         } else if ((val > 0) && invert) {
218                 val += thresh;
219         }
220 
221         return val;
222 }
223 
224 static int tda7419_vol_put(struct snd_kcontrol *kcontrol,
225                            struct snd_ctl_elem_value *ucontrol)
226 {
227         struct snd_soc_component *component =
228                 snd_kcontrol_chip(kcontrol);
229         struct tda7419_vol_control *tvc =
230                 (struct tda7419_vol_control *)kcontrol->private_value;
231         unsigned int reg = tvc->reg;
232         unsigned int rreg = tvc->rreg;
233         unsigned int mask = tvc->mask;
234         int thresh = tvc->thresh;
235         unsigned int invert = tvc->invert;
236         int val;
237         int ret;
238 
239         val = tda7419_vol_put_value(ucontrol->value.integer.value[0],
240                                     thresh, invert);
241         ret = snd_soc_component_update_bits(component, reg,
242                                             mask, val);
243         if (ret < 0)
244                 return ret;
245 
246         if (tda7419_vol_is_stereo(tvc)) {
247                 val = tda7419_vol_put_value(ucontrol->value.integer.value[1],
248                                             thresh, invert);
249                 ret = snd_soc_component_update_bits(component, rreg,
250                                                     mask, val);
251         }
252 
253         return ret;
254 }
255 
256 #define TDA7419_SINGLE_VALUE(xreg, xmask, xmin, xmax, xthresh, xinvert) \
257         ((unsigned long)&(struct tda7419_vol_control) \
258         {.reg = xreg, .rreg = xreg, .mask = xmask, .min = xmin, \
259          .max = xmax, .thresh = xthresh, .invert = xinvert})
260 
261 #define TDA7419_DOUBLE_R_VALUE(xregl, xregr, xmask, xmin, xmax, xthresh, \
262                                xinvert) \
263         ((unsigned long)&(struct tda7419_vol_control) \
264         {.reg = xregl, .rreg = xregr, .mask = xmask, .min = xmin, \
265          .max = xmax, .thresh = xthresh, .invert = xinvert})
266 
267 #define TDA7419_SINGLE_TLV(xname, xreg, xmask, xmin, xmax, xthresh, \
268                            xinvert, xtlv_array) \
269 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
270         .name = xname, \
271         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
272                 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
273         .tlv.p = (xtlv_array), \
274         .info = tda7419_vol_info, \
275         .get = tda7419_vol_get, \
276         .put = tda7419_vol_put, \
277         .private_value = TDA7419_SINGLE_VALUE(xreg, xmask, xmin, \
278                                               xmax, xthresh, xinvert), \
279 }
280 
281 #define TDA7419_DOUBLE_R_TLV(xname, xregl, xregr, xmask, xmin, xmax, \
282                              xthresh, xinvert, xtlv_array) \
283 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
284         .name = xname, \
285         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
286                 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
287         .tlv.p = (xtlv_array), \
288         .info = tda7419_vol_info, \
289         .get = tda7419_vol_get, \
290         .put = tda7419_vol_put, \
291         .private_value = TDA7419_DOUBLE_R_VALUE(xregl, xregr, xmask, \
292                                                 xmin, xmax, xthresh, \
293                                                 xinvert), \
294 }
295 
296 static const char * const enum_src_sel[] = {
297         "QD", "SE1", "SE2", "SE3", "SE", "Mute", "Mute", "Mute"};
298 static SOC_ENUM_SINGLE_DECL(soc_enum_main_src_sel,
299         TDA7419_MAIN_SRC_REG, TDA7419_MAIN_SRC_SEL, enum_src_sel);
300 static const struct snd_kcontrol_new soc_mux_main_src_sel =
301         SOC_DAPM_ENUM("Main Source Select", soc_enum_main_src_sel);
302 static DECLARE_TLV_DB_SCALE(tlv_src_gain, 0, 100, 0);
303 static DECLARE_TLV_DB_SCALE(tlv_loudness_atten, -1500, 100, 0);
304 static const char * const enum_loudness_center_freq[] = {
305         "Flat", "400 Hz", "800 Hz", "2400 Hz"};
306 static SOC_ENUM_SINGLE_DECL(soc_enum_loudness_center_freq,
307         TDA7419_LOUDNESS_REG, TDA7419_LOUDNESS_CENTER_FREQ,
308         enum_loudness_center_freq);
309 static const char * const enum_mute_influence[] = {
310         "Pin and IIC", "IIC"};
311 static SOC_ENUM_SINGLE_DECL(soc_enum_mute_influence,
312         TDA7419_MUTE_CLK_REG, TDA7419_MUTE_INFLUENCE, enum_mute_influence);
313 static const char * const enum_soft_mute_time[] = {
314         "0.48 ms", "0.96 ms", "123 ms", "123 ms"};
315 static SOC_ENUM_SINGLE_DECL(soc_enum_soft_mute_time,
316         TDA7419_MUTE_CLK_REG, TDA7419_SOFT_MUTE_TIME, enum_soft_mute_time);
317 static const char * const enum_soft_step_time[] = {
318         "0.160 ms", "0.321 ms", "0.642 ms", "1.28 ms",
319         "2.56 ms", "5.12 ms", "10.24 ms", "20.48 ms"};
320 static SOC_ENUM_SINGLE_DECL(soc_enum_soft_step_time,
321         TDA7419_MUTE_CLK_REG, TDA7419_SOFT_STEP_TIME, enum_soft_step_time);
322 static DECLARE_TLV_DB_SCALE(tlv_volume, -8000, 100, 1);
323 static const char * const enum_treble_center_freq[] = {
324         "10.0 kHz", "12.5 kHz", "15.0 kHz", "17.5 kHz"};
325 static DECLARE_TLV_DB_SCALE(tlv_filter, -1500, 100, 0);
326 static SOC_ENUM_SINGLE_DECL(soc_enum_treble_center_freq,
327         TDA7419_TREBLE_REG, TDA7419_TREBLE_CENTER_FREQ,
328         enum_treble_center_freq);
329 static const char * const enum_ref_out_select[] = {
330         "External Vref (4 V)", "Internal Vref (3.3 V)"};
331 static SOC_ENUM_SINGLE_DECL(soc_enum_ref_out_select,
332         TDA7419_TREBLE_REG, TDA7419_REF_OUT_SELECT, enum_ref_out_select);
333 static const char * const enum_middle_q_factor[] = {
334         "0.5", "0.75", "1.0", "1.25"};
335 static SOC_ENUM_SINGLE_DECL(soc_enum_middle_q_factor,
336         TDA7419_MIDDLE_REG, TDA7419_MIDDLE_Q_FACTOR, enum_middle_q_factor);
337 static const char * const enum_bass_q_factor[] = {
338         "1.0", "1.25", "1.5", "2.0"};
339 static SOC_ENUM_SINGLE_DECL(soc_enum_bass_q_factor,
340         TDA7419_BASS_REG, TDA7419_BASS_Q_FACTOR, enum_bass_q_factor);
341 static SOC_ENUM_SINGLE_DECL(soc_enum_second_src_sel,
342         TDA7419_SECOND_SRC_REG, TDA7419_SECOND_SRC_SEL, enum_src_sel);
343 static const struct snd_kcontrol_new soc_mux_second_src_sel =
344         SOC_DAPM_ENUM("Second Source Select", soc_enum_second_src_sel);
345 static const char * const enum_rear_spkr_src[] = {
346         "Main", "Second"};
347 static SOC_ENUM_SINGLE_DECL(soc_enum_rear_spkr_src,
348         TDA7419_SECOND_SRC_REG, TDA7419_REAR_SPKR_SRC, enum_rear_spkr_src);
349 static const struct snd_kcontrol_new soc_mux_rear_spkr_src =
350         SOC_DAPM_ENUM("Rear Speaker Source", soc_enum_rear_spkr_src);
351 static const char * const enum_sub_cut_off_freq[] = {
352         "Flat", "80 Hz", "120 Hz", "160 Hz"};
353 static SOC_ENUM_SINGLE_DECL(soc_enum_sub_cut_off_freq,
354         TDA7419_SUB_MID_BASS_REG, TDA7419_SUB_CUT_OFF_FREQ,
355         enum_sub_cut_off_freq);
356 static const char * const enum_middle_center_freq[] = {
357         "500 Hz", "1000 Hz", "1500 Hz", "2500 Hz"};
358 static SOC_ENUM_SINGLE_DECL(soc_enum_middle_center_freq,
359         TDA7419_SUB_MID_BASS_REG, TDA7419_MIDDLE_CENTER_FREQ,
360         enum_middle_center_freq);
361 static const char * const enum_bass_center_freq[] = {
362         "60 Hz", "80 Hz", "100 Hz", "200 Hz"};
363 static SOC_ENUM_SINGLE_DECL(soc_enum_bass_center_freq,
364         TDA7419_SUB_MID_BASS_REG, TDA7419_BASS_CENTER_FREQ,
365         enum_bass_center_freq);
366 static const char * const enum_sa_q_factor[] = {
367         "3.5", "1.75" };
368 static SOC_ENUM_SINGLE_DECL(soc_enum_sa_q_factor,
369         TDA7419_SA_CLK_AC_REG, TDA7419_SA_Q_FACTOR, enum_sa_q_factor);
370 static const char * const enum_reset_mode[] = {
371         "IIC", "Auto" };
372 static SOC_ENUM_SINGLE_DECL(soc_enum_reset_mode,
373         TDA7419_SA_CLK_AC_REG, TDA7419_RESET_MODE, enum_reset_mode);
374 static const char * const enum_sa_src[] = {
375         "Bass", "In Gain" };
376 static SOC_ENUM_SINGLE_DECL(soc_enum_sa_src,
377         TDA7419_SA_CLK_AC_REG, TDA7419_SA_SOURCE, enum_sa_src);
378 static const char * const enum_clk_src[] = {
379         "Internal", "External" };
380 static SOC_ENUM_SINGLE_DECL(soc_enum_clk_src,
381         TDA7419_SA_CLK_AC_REG, TDA7419_CLK_SOURCE, enum_clk_src);
382 static const char * const enum_coupling_mode[] = {
383         "DC Coupling (without HPF)", "AC Coupling after In Gain",
384         "DC Coupling (with HPF)", "AC Coupling after Bass" };
385 static SOC_ENUM_SINGLE_DECL(soc_enum_coupling_mode,
386         TDA7419_SA_CLK_AC_REG, TDA7419_COUPLING_MODE, enum_coupling_mode);
387 
388 /* ASoC Controls */
389 static struct snd_kcontrol_new tda7419_controls[] = {
390 SOC_SINGLE_TLV("Main Source Capture Volume", TDA7419_MAIN_SRC_REG,
391                TDA7419_MAIN_SRC_GAIN, 15, 0, tlv_src_gain),
392 SOC_SINGLE("Main Source AutoZero Switch", TDA7419_MAIN_SRC_REG,
393            TDA7419_MAIN_SRC_AUTOZERO, 1, 1),
394 SOC_SINGLE_TLV("Loudness Playback Volume", TDA7419_LOUDNESS_REG,
395                TDA7419_LOUDNESS_ATTEN, 15, 1, tlv_loudness_atten),
396 SOC_ENUM("Loudness Center Frequency", soc_enum_loudness_center_freq),
397 SOC_SINGLE("Loudness High Boost Switch", TDA7419_LOUDNESS_REG,
398            TDA7419_LOUDNESS_BOOST, 1, 1),
399 SOC_SINGLE("Loudness Soft Step Switch", TDA7419_LOUDNESS_REG,
400            TDA7419_LOUDNESS_SOFT_STEP, 1, 1),
401 SOC_SINGLE("Soft Mute Switch", TDA7419_MUTE_CLK_REG, TDA7419_SOFT_MUTE, 1, 1),
402 SOC_ENUM("Mute Influence", soc_enum_mute_influence),
403 SOC_ENUM("Soft Mute Time", soc_enum_soft_mute_time),
404 SOC_ENUM("Soft Step Time", soc_enum_soft_step_time),
405 SOC_SINGLE("Clock Fast Mode Switch", TDA7419_MUTE_CLK_REG,
406            TDA7419_CLK_FAST_MODE, 1, 1),
407 TDA7419_SINGLE_TLV("Master Playback Volume", TDA7419_VOLUME_REG,
408                    0x7f, -80, 15, 0x10, 0, tlv_volume),
409 SOC_SINGLE("Volume Soft Step Switch", TDA7419_VOLUME_REG,
410            TDA7419_VOLUME_SOFT_STEP, 1, 1),
411 TDA7419_SINGLE_TLV("Treble Playback Volume", TDA7419_TREBLE_REG,
412                    0x1f, -15, 15, 0x10, 1, tlv_filter),
413 SOC_ENUM("Treble Center Frequency", soc_enum_treble_center_freq),
414 SOC_ENUM("Reference Output Select", soc_enum_ref_out_select),
415 TDA7419_SINGLE_TLV("Middle Playback Volume", TDA7419_MIDDLE_REG,
416                    0x1f, -15, 15, 0x10, 1, tlv_filter),
417 SOC_ENUM("Middle Q Factor", soc_enum_middle_q_factor),
418 SOC_SINGLE("Middle Soft Step Switch", TDA7419_MIDDLE_REG,
419            TDA7419_MIDDLE_SOFT_STEP, 1, 1),
420 TDA7419_SINGLE_TLV("Bass Playback Volume", TDA7419_BASS_REG,
421                    0x1f, -15, 15, 0x10, 1, tlv_filter),
422 SOC_ENUM("Bass Q Factor", soc_enum_bass_q_factor),
423 SOC_SINGLE("Bass Soft Step Switch", TDA7419_BASS_REG,
424            TDA7419_BASS_SOFT_STEP, 1, 1),
425 SOC_SINGLE_TLV("Second Source Capture Volume", TDA7419_SECOND_SRC_REG,
426                TDA7419_SECOND_SRC_GAIN, 15, 0, tlv_src_gain),
427 SOC_ENUM("Subwoofer Cut-off Frequency", soc_enum_sub_cut_off_freq),
428 SOC_ENUM("Middle Center Frequency", soc_enum_middle_center_freq),
429 SOC_ENUM("Bass Center Frequency", soc_enum_bass_center_freq),
430 SOC_SINGLE("Bass DC Mode Switch", TDA7419_SUB_MID_BASS_REG,
431            TDA7419_BASS_DC_MODE, 1, 1),
432 SOC_SINGLE("Smoothing Filter Switch", TDA7419_SUB_MID_BASS_REG,
433            TDA7419_SMOOTHING_FILTER, 1, 1),
434 TDA7419_DOUBLE_R_TLV("Front Speaker Playback Volume", TDA7419_ATTENUATOR_LF_REG,
435                      TDA7419_ATTENUATOR_RF_REG, 0x7f, -80, 15, 0x10, 0,
436                      tlv_volume),
437 SOC_SINGLE("Left Front Soft Step Switch", TDA7419_ATTENUATOR_LF_REG,
438            TDA7419_VOLUME_SOFT_STEP, 1, 1),
439 SOC_SINGLE("Right Front Soft Step Switch", TDA7419_ATTENUATOR_RF_REG,
440            TDA7419_VOLUME_SOFT_STEP, 1, 1),
441 TDA7419_DOUBLE_R_TLV("Rear Speaker Playback Volume", TDA7419_ATTENUATOR_LR_REG,
442                      TDA7419_ATTENUATOR_RR_REG, 0x7f, -80, 15, 0x10, 0,
443                      tlv_volume),
444 SOC_SINGLE("Left Rear Soft Step Switch", TDA7419_ATTENUATOR_LR_REG,
445            TDA7419_VOLUME_SOFT_STEP, 1, 1),
446 SOC_SINGLE("Right Rear Soft Step Switch", TDA7419_ATTENUATOR_RR_REG,
447            TDA7419_VOLUME_SOFT_STEP, 1, 1),
448 TDA7419_SINGLE_TLV("Mixing Capture Volume", TDA7419_MIXING_LEVEL_REG,
449                    0x7f, -80, 15, 0x10, 0, tlv_volume),
450 SOC_SINGLE("Mixing Level Soft Step Switch", TDA7419_MIXING_LEVEL_REG,
451            TDA7419_VOLUME_SOFT_STEP, 1, 1),
452 TDA7419_SINGLE_TLV("Subwoofer Playback Volume", TDA7419_ATTENUATOR_SUB_REG,
453                    0x7f, -80, 15, 0x10, 0, tlv_volume),
454 SOC_SINGLE("Subwoofer Soft Step Switch", TDA7419_ATTENUATOR_SUB_REG,
455            TDA7419_VOLUME_SOFT_STEP, 1, 1),
456 SOC_ENUM("Spectrum Analyzer Q Factor", soc_enum_sa_q_factor),
457 SOC_ENUM("Spectrum Analyzer Reset Mode", soc_enum_reset_mode),
458 SOC_ENUM("Spectrum Analyzer Source", soc_enum_sa_src),
459 SOC_SINGLE("Spectrum Analyzer Run Switch", TDA7419_SA_CLK_AC_REG,
460            TDA7419_SA_RUN, 1, 1),
461 SOC_SINGLE("Spectrum Analyzer Reset Switch", TDA7419_SA_CLK_AC_REG,
462            TDA7419_RESET, 1, 1),
463 SOC_ENUM("Clock Source", soc_enum_clk_src),
464 SOC_ENUM("Coupling Mode", soc_enum_coupling_mode),
465 };
466 
467 static const struct snd_kcontrol_new soc_mixer_lf_output_controls[] = {
468         SOC_DAPM_SINGLE("Mix to LF Speaker Switch",
469                         TDA7419_MIXING_GAIN_REG,
470                         TDA7419_MIX_LF, 1, 1),
471 };
472 
473 static const struct snd_kcontrol_new soc_mixer_rf_output_controls[] = {
474         SOC_DAPM_SINGLE("Mix to RF Speaker Switch",
475                         TDA7419_MIXING_GAIN_REG,
476                         TDA7419_MIX_RF, 1, 1),
477 };
478 
479 static const struct snd_kcontrol_new soc_mix_enable_switch_controls[] = {
480         SOC_DAPM_SINGLE("Switch", TDA7419_MIXING_GAIN_REG,
481                         TDA7419_MIX_ENABLE, 1, 1),
482 };
483 
484 static const struct snd_kcontrol_new soc_sub_enable_switch_controls[] = {
485         SOC_DAPM_SINGLE("Switch", TDA7419_MIXING_GAIN_REG,
486                         TDA7419_MIX_ENABLE, 1, 1),
487 };
488 
489 static const struct snd_soc_dapm_widget tda7419_dapm_widgets[] = {
490         SND_SOC_DAPM_INPUT("SE3L"),
491         SND_SOC_DAPM_INPUT("SE3R"),
492         SND_SOC_DAPM_INPUT("SE2L"),
493         SND_SOC_DAPM_INPUT("SE2R"),
494         SND_SOC_DAPM_INPUT("SE1L"),
495         SND_SOC_DAPM_INPUT("SE1R"),
496         SND_SOC_DAPM_INPUT("DIFFL"),
497         SND_SOC_DAPM_INPUT("DIFFR"),
498         SND_SOC_DAPM_INPUT("MIX"),
499 
500         SND_SOC_DAPM_MUX("Main Source Select", SND_SOC_NOPM,
501                          0, 0, &soc_mux_main_src_sel),
502         SND_SOC_DAPM_MUX("Second Source Select", SND_SOC_NOPM,
503                          0, 0, &soc_mux_second_src_sel),
504         SND_SOC_DAPM_MUX("Rear Speaker Source", SND_SOC_NOPM,
505                          0, 0, &soc_mux_rear_spkr_src),
506 
507         SND_SOC_DAPM_SWITCH("Mix Enable", SND_SOC_NOPM,
508                         0, 0, &soc_mix_enable_switch_controls[0]),
509         SND_SOC_DAPM_MIXER_NAMED_CTL("LF Output Mixer", SND_SOC_NOPM,
510                         0, 0, &soc_mixer_lf_output_controls[0],
511                         ARRAY_SIZE(soc_mixer_lf_output_controls)),
512         SND_SOC_DAPM_MIXER_NAMED_CTL("RF Output Mixer", SND_SOC_NOPM,
513                         0, 0, &soc_mixer_rf_output_controls[0],
514                         ARRAY_SIZE(soc_mixer_rf_output_controls)),
515 
516         SND_SOC_DAPM_SWITCH("Subwoofer Enable",
517                         SND_SOC_NOPM, 0, 0,
518                         &soc_sub_enable_switch_controls[0]),
519 
520         SND_SOC_DAPM_OUTPUT("OUTLF"),
521         SND_SOC_DAPM_OUTPUT("OUTRF"),
522         SND_SOC_DAPM_OUTPUT("OUTLR"),
523         SND_SOC_DAPM_OUTPUT("OUTRR"),
524         SND_SOC_DAPM_OUTPUT("OUTSW"),
525 };
526 
527 static const struct snd_soc_dapm_route tda7419_dapm_routes[] = {
528         {"Main Source Select", "SE3", "SE3L"},
529         {"Main Source Select", "SE3", "SE3R"},
530         {"Main Source Select", "SE2", "SE2L"},
531         {"Main Source Select", "SE2", "SE2R"},
532         {"Main Source Select", "SE1", "SE1L"},
533         {"Main Source Select", "SE1", "SE1R"},
534         {"Main Source Select", "SE", "DIFFL"},
535         {"Main Source Select", "SE", "DIFFR"},
536         {"Main Source Select", "QD", "DIFFL"},
537         {"Main Source Select", "QD", "DIFFR"},
538 
539         {"Second Source Select", "SE3", "SE3L"},
540         {"Second Source Select", "SE3", "SE3R"},
541         {"Second Source Select", "SE2", "SE2L"},
542         {"Second Source Select", "SE2", "SE2R"},
543         {"Second Source Select", "SE1", "SE1L"},
544         {"Second Source Select", "SE1", "SE1R"},
545         {"Second Source Select", "SE", "DIFFL"},
546         {"Second Source Select", "SE", "DIFFR"},
547         {"Second Source Select", "QD", "DIFFL"},
548         {"Second Source Select", "QD", "DIFFR"},
549 
550         {"Rear Speaker Source", "Main", "Main Source Select"},
551         {"Rear Speaker Source", "Second", "Second Source Select"},
552 
553         {"Subwoofer Enable", "Switch", "Main Source Select"},
554 
555         {"Mix Enable", "Switch", "MIX"},
556 
557         {"LF Output Mixer", NULL, "Main Source Select"},
558         {"LF Output Mixer", "Mix to LF Speaker Switch", "Mix Enable"},
559         {"RF Output Mixer", NULL, "Main Source Select"},
560         {"RF Output Mixer", "Mix to RF Speaker Switch", "Mix Enable"},
561 
562         {"OUTLF", NULL, "LF Output Mixer"},
563         {"OUTRF", NULL, "RF Output Mixer"},
564         {"OUTLR", NULL, "Rear Speaker Source"},
565         {"OUTRR", NULL, "Rear Speaker Source"},
566         {"OUTSW", NULL, "Subwoofer Enable"},
567 };
568 
569 static const struct snd_soc_component_driver tda7419_component_driver = {
570         .name                   = "tda7419",
571         .controls               = tda7419_controls,
572         .num_controls           = ARRAY_SIZE(tda7419_controls),
573         .dapm_widgets           = tda7419_dapm_widgets,
574         .num_dapm_widgets       = ARRAY_SIZE(tda7419_dapm_widgets),
575         .dapm_routes            = tda7419_dapm_routes,
576         .num_dapm_routes        = ARRAY_SIZE(tda7419_dapm_routes),
577 };
578 
579 static int tda7419_probe(struct i2c_client *i2c,
580                          const struct i2c_device_id *id)
581 {
582         struct tda7419_data *tda7419;
583         int i, ret;
584 
585         tda7419 = devm_kzalloc(&i2c->dev,
586                                sizeof(struct tda7419_data),
587                                GFP_KERNEL);
588         if (tda7419 == NULL)
589                 return -ENOMEM;
590 
591         i2c_set_clientdata(i2c, tda7419);
592 
593         tda7419->regmap = devm_regmap_init_i2c(i2c, &tda7419_regmap_config);
594         if (IS_ERR(tda7419->regmap)) {
595                 ret = PTR_ERR(tda7419->regmap);
596                 dev_err(&i2c->dev, "error initializing regmap: %d\n",
597                                 ret);
598                 return ret;
599         }
600 
601         /*
602          * Reset registers to power-on defaults. The part does not provide a
603          * soft-reset function and the registers are not readable. This ensures
604          * that the cache matches register contents even if the registers have
605          * been previously initialized and not power cycled before probe.
606          */
607         for (i = 0; i < ARRAY_SIZE(tda7419_regmap_defaults); i++)
608                 regmap_write(tda7419->regmap,
609                              tda7419_regmap_defaults[i].reg,
610                              tda7419_regmap_defaults[i].def);
611 
612         ret = devm_snd_soc_register_component(&i2c->dev,
613                 &tda7419_component_driver, NULL, 0);
614         if (ret < 0) {
615                 dev_err(&i2c->dev, "error registering component: %d\n",
616                                 ret);
617         }
618 
619         return ret;
620 }
621 
622 static const struct i2c_device_id tda7419_i2c_id[] = {
623         { "tda7419", 0 },
624         { }
625 };
626 MODULE_DEVICE_TABLE(i2c, tda7419_i2c_id);
627 
628 static const struct of_device_id tda7419_of_match[] = {
629         { .compatible = "st,tda7419" },
630         { },
631 };
632 
633 static struct i2c_driver tda7419_driver = {
634         .driver = {
635                 .name   = "tda7419",
636                 .of_match_table = tda7419_of_match,
637         },
638         .probe          = tda7419_probe,
639         .id_table       = tda7419_i2c_id,
640 };
641 
642 module_i2c_driver(tda7419_driver);
643 
644 MODULE_AUTHOR("Matt Porter <mporter@konsulko.com>");
645 MODULE_DESCRIPTION("TDA7419 audio processor driver");
646 MODULE_LICENSE("GPL");
647 

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