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TOMOYO Linux Cross Reference
Linux/sound/soc/sunxi/sun4i-codec.c

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  1 /*
  2  * Copyright 2014 Emilio López <emilio@elopez.com.ar>
  3  * Copyright 2014 Jon Smirl <jonsmirl@gmail.com>
  4  * Copyright 2015 Maxime Ripard <maxime.ripard@free-electrons.com>
  5  * Copyright 2015 Adam Sampson <ats@offog.org>
  6  * Copyright 2016 Chen-Yu Tsai <wens@csie.org>
  7  *
  8  * Based on the Allwinner SDK driver, released under the GPL.
  9  *
 10  * This program is free software; you can redistribute it and/or modify
 11  * it under the terms of the GNU General Public License as published by
 12  * the Free Software Foundation; either version 2 of the License, or
 13  * (at your option) any later version.
 14  *
 15  * This program is distributed in the hope that it will be useful,
 16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 18  * GNU General Public License for more details.
 19  */
 20 
 21 #include <linux/init.h>
 22 #include <linux/kernel.h>
 23 #include <linux/module.h>
 24 #include <linux/platform_device.h>
 25 #include <linux/delay.h>
 26 #include <linux/slab.h>
 27 #include <linux/of.h>
 28 #include <linux/of_address.h>
 29 #include <linux/of_device.h>
 30 #include <linux/of_platform.h>
 31 #include <linux/clk.h>
 32 #include <linux/regmap.h>
 33 #include <linux/reset.h>
 34 #include <linux/gpio/consumer.h>
 35 
 36 #include <sound/core.h>
 37 #include <sound/pcm.h>
 38 #include <sound/pcm_params.h>
 39 #include <sound/soc.h>
 40 #include <sound/tlv.h>
 41 #include <sound/initval.h>
 42 #include <sound/dmaengine_pcm.h>
 43 
 44 /* Codec DAC digital controls and FIFO registers */
 45 #define SUN4I_CODEC_DAC_DPC                     (0x00)
 46 #define SUN4I_CODEC_DAC_DPC_EN_DA                       (31)
 47 #define SUN4I_CODEC_DAC_DPC_DVOL                        (12)
 48 #define SUN4I_CODEC_DAC_FIFOC                   (0x04)
 49 #define SUN4I_CODEC_DAC_FIFOC_DAC_FS                    (29)
 50 #define SUN4I_CODEC_DAC_FIFOC_FIR_VERSION               (28)
 51 #define SUN4I_CODEC_DAC_FIFOC_SEND_LASAT                (26)
 52 #define SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE              (24)
 53 #define SUN4I_CODEC_DAC_FIFOC_DRQ_CLR_CNT               (21)
 54 #define SUN4I_CODEC_DAC_FIFOC_TX_TRIG_LEVEL             (8)
 55 #define SUN4I_CODEC_DAC_FIFOC_MONO_EN                   (6)
 56 #define SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS            (5)
 57 #define SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN                (4)
 58 #define SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH                (0)
 59 #define SUN4I_CODEC_DAC_FIFOS                   (0x08)
 60 #define SUN4I_CODEC_DAC_TXDATA                  (0x0c)
 61 
 62 /* Codec DAC side analog signal controls */
 63 #define SUN4I_CODEC_DAC_ACTL                    (0x10)
 64 #define SUN4I_CODEC_DAC_ACTL_DACAENR                    (31)
 65 #define SUN4I_CODEC_DAC_ACTL_DACAENL                    (30)
 66 #define SUN4I_CODEC_DAC_ACTL_MIXEN                      (29)
 67 #define SUN4I_CODEC_DAC_ACTL_LDACLMIXS                  (15)
 68 #define SUN4I_CODEC_DAC_ACTL_RDACRMIXS                  (14)
 69 #define SUN4I_CODEC_DAC_ACTL_LDACRMIXS                  (13)
 70 #define SUN4I_CODEC_DAC_ACTL_DACPAS                     (8)
 71 #define SUN4I_CODEC_DAC_ACTL_MIXPAS                     (7)
 72 #define SUN4I_CODEC_DAC_ACTL_PA_MUTE                    (6)
 73 #define SUN4I_CODEC_DAC_ACTL_PA_VOL                     (0)
 74 #define SUN4I_CODEC_DAC_TUNE                    (0x14)
 75 #define SUN4I_CODEC_DAC_DEBUG                   (0x18)
 76 
 77 /* Codec ADC digital controls and FIFO registers */
 78 #define SUN4I_CODEC_ADC_FIFOC                   (0x1c)
 79 #define SUN4I_CODEC_ADC_FIFOC_ADC_FS                    (29)
 80 #define SUN4I_CODEC_ADC_FIFOC_EN_AD                     (28)
 81 #define SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE              (24)
 82 #define SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL             (8)
 83 #define SUN4I_CODEC_ADC_FIFOC_MONO_EN                   (7)
 84 #define SUN4I_CODEC_ADC_FIFOC_RX_SAMPLE_BITS            (6)
 85 #define SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN                (4)
 86 #define SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH                (0)
 87 #define SUN4I_CODEC_ADC_FIFOS                   (0x20)
 88 #define SUN4I_CODEC_ADC_RXDATA                  (0x24)
 89 
 90 /* Codec ADC side analog signal controls */
 91 #define SUN4I_CODEC_ADC_ACTL                    (0x28)
 92 #define SUN4I_CODEC_ADC_ACTL_ADC_R_EN                   (31)
 93 #define SUN4I_CODEC_ADC_ACTL_ADC_L_EN                   (30)
 94 #define SUN4I_CODEC_ADC_ACTL_PREG1EN                    (29)
 95 #define SUN4I_CODEC_ADC_ACTL_PREG2EN                    (28)
 96 #define SUN4I_CODEC_ADC_ACTL_VMICEN                     (27)
 97 #define SUN4I_CODEC_ADC_ACTL_VADCG                      (20)
 98 #define SUN4I_CODEC_ADC_ACTL_ADCIS                      (17)
 99 #define SUN4I_CODEC_ADC_ACTL_PA_EN                      (4)
100 #define SUN4I_CODEC_ADC_ACTL_DDE                        (3)
101 #define SUN4I_CODEC_ADC_DEBUG                   (0x2c)
102 
103 /* FIFO counters */
104 #define SUN4I_CODEC_DAC_TXCNT                   (0x30)
105 #define SUN4I_CODEC_ADC_RXCNT                   (0x34)
106 
107 /* Calibration register (sun7i only) */
108 #define SUN7I_CODEC_AC_DAC_CAL                  (0x38)
109 
110 /* Microphone controls (sun7i only) */
111 #define SUN7I_CODEC_AC_MIC_PHONE_CAL            (0x3c)
112 
113 /*
114  * sun6i specific registers
115  *
116  * sun6i shares the same digital control and FIFO registers as sun4i,
117  * but only the DAC digital controls are at the same offset. The others
118  * have been moved around to accommodate extra analog controls.
119  */
120 
121 /* Codec DAC digital controls and FIFO registers */
122 #define SUN6I_CODEC_ADC_FIFOC                   (0x10)
123 #define SUN6I_CODEC_ADC_FIFOC_EN_AD                     (28)
124 #define SUN6I_CODEC_ADC_FIFOS                   (0x14)
125 #define SUN6I_CODEC_ADC_RXDATA                  (0x18)
126 
127 /* Output mixer and gain controls */
128 #define SUN6I_CODEC_OM_DACA_CTRL                (0x20)
129 #define SUN6I_CODEC_OM_DACA_CTRL_DACAREN                (31)
130 #define SUN6I_CODEC_OM_DACA_CTRL_DACALEN                (30)
131 #define SUN6I_CODEC_OM_DACA_CTRL_RMIXEN                 (29)
132 #define SUN6I_CODEC_OM_DACA_CTRL_LMIXEN                 (28)
133 #define SUN6I_CODEC_OM_DACA_CTRL_RMIX_MIC1              (23)
134 #define SUN6I_CODEC_OM_DACA_CTRL_RMIX_MIC2              (22)
135 #define SUN6I_CODEC_OM_DACA_CTRL_RMIX_PHONE             (21)
136 #define SUN6I_CODEC_OM_DACA_CTRL_RMIX_PHONEP            (20)
137 #define SUN6I_CODEC_OM_DACA_CTRL_RMIX_LINEINR           (19)
138 #define SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACR              (18)
139 #define SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACL              (17)
140 #define SUN6I_CODEC_OM_DACA_CTRL_LMIX_MIC1              (16)
141 #define SUN6I_CODEC_OM_DACA_CTRL_LMIX_MIC2              (15)
142 #define SUN6I_CODEC_OM_DACA_CTRL_LMIX_PHONE             (14)
143 #define SUN6I_CODEC_OM_DACA_CTRL_LMIX_PHONEN            (13)
144 #define SUN6I_CODEC_OM_DACA_CTRL_LMIX_LINEINL           (12)
145 #define SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACL              (11)
146 #define SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACR              (10)
147 #define SUN6I_CODEC_OM_DACA_CTRL_RHPIS                  (9)
148 #define SUN6I_CODEC_OM_DACA_CTRL_LHPIS                  (8)
149 #define SUN6I_CODEC_OM_DACA_CTRL_RHPPAMUTE              (7)
150 #define SUN6I_CODEC_OM_DACA_CTRL_LHPPAMUTE              (6)
151 #define SUN6I_CODEC_OM_DACA_CTRL_HPVOL                  (0)
152 #define SUN6I_CODEC_OM_PA_CTRL                  (0x24)
153 #define SUN6I_CODEC_OM_PA_CTRL_HPPAEN                   (31)
154 #define SUN6I_CODEC_OM_PA_CTRL_HPCOM_CTL                (29)
155 #define SUN6I_CODEC_OM_PA_CTRL_COMPTEN                  (28)
156 #define SUN6I_CODEC_OM_PA_CTRL_MIC1G                    (15)
157 #define SUN6I_CODEC_OM_PA_CTRL_MIC2G                    (12)
158 #define SUN6I_CODEC_OM_PA_CTRL_LINEING                  (9)
159 #define SUN6I_CODEC_OM_PA_CTRL_PHONEG                   (6)
160 #define SUN6I_CODEC_OM_PA_CTRL_PHONEPG                  (3)
161 #define SUN6I_CODEC_OM_PA_CTRL_PHONENG                  (0)
162 
163 /* Microphone, line out and phone out controls */
164 #define SUN6I_CODEC_MIC_CTRL                    (0x28)
165 #define SUN6I_CODEC_MIC_CTRL_HBIASEN                    (31)
166 #define SUN6I_CODEC_MIC_CTRL_MBIASEN                    (30)
167 #define SUN6I_CODEC_MIC_CTRL_MIC1AMPEN                  (28)
168 #define SUN6I_CODEC_MIC_CTRL_MIC1BOOST                  (25)
169 #define SUN6I_CODEC_MIC_CTRL_MIC2AMPEN                  (24)
170 #define SUN6I_CODEC_MIC_CTRL_MIC2BOOST                  (21)
171 #define SUN6I_CODEC_MIC_CTRL_MIC2SLT                    (20)
172 #define SUN6I_CODEC_MIC_CTRL_LINEOUTLEN                 (19)
173 #define SUN6I_CODEC_MIC_CTRL_LINEOUTREN                 (18)
174 #define SUN6I_CODEC_MIC_CTRL_LINEOUTLSRC                (17)
175 #define SUN6I_CODEC_MIC_CTRL_LINEOUTRSRC                (16)
176 #define SUN6I_CODEC_MIC_CTRL_LINEOUTVC                  (11)
177 #define SUN6I_CODEC_MIC_CTRL_PHONEPREG                  (8)
178 
179 /* ADC mixer controls */
180 #define SUN6I_CODEC_ADC_ACTL                    (0x2c)
181 #define SUN6I_CODEC_ADC_ACTL_ADCREN                     (31)
182 #define SUN6I_CODEC_ADC_ACTL_ADCLEN                     (30)
183 #define SUN6I_CODEC_ADC_ACTL_ADCRG                      (27)
184 #define SUN6I_CODEC_ADC_ACTL_ADCLG                      (24)
185 #define SUN6I_CODEC_ADC_ACTL_RADCMIX_MIC1               (13)
186 #define SUN6I_CODEC_ADC_ACTL_RADCMIX_MIC2               (12)
187 #define SUN6I_CODEC_ADC_ACTL_RADCMIX_PHONE              (11)
188 #define SUN6I_CODEC_ADC_ACTL_RADCMIX_PHONEP             (10)
189 #define SUN6I_CODEC_ADC_ACTL_RADCMIX_LINEINR            (9)
190 #define SUN6I_CODEC_ADC_ACTL_RADCMIX_OMIXR              (8)
191 #define SUN6I_CODEC_ADC_ACTL_RADCMIX_OMIXL              (7)
192 #define SUN6I_CODEC_ADC_ACTL_LADCMIX_MIC1               (6)
193 #define SUN6I_CODEC_ADC_ACTL_LADCMIX_MIC2               (5)
194 #define SUN6I_CODEC_ADC_ACTL_LADCMIX_PHONE              (4)
195 #define SUN6I_CODEC_ADC_ACTL_LADCMIX_PHONEN             (3)
196 #define SUN6I_CODEC_ADC_ACTL_LADCMIX_LINEINL            (2)
197 #define SUN6I_CODEC_ADC_ACTL_LADCMIX_OMIXL              (1)
198 #define SUN6I_CODEC_ADC_ACTL_LADCMIX_OMIXR              (0)
199 
200 /* Analog performance tuning controls */
201 #define SUN6I_CODEC_ADDA_TUNE                   (0x30)
202 
203 /* Calibration controls */
204 #define SUN6I_CODEC_CALIBRATION                 (0x34)
205 
206 /* FIFO counters */
207 #define SUN6I_CODEC_DAC_TXCNT                   (0x40)
208 #define SUN6I_CODEC_ADC_RXCNT                   (0x44)
209 
210 /* headset jack detection and button support registers */
211 #define SUN6I_CODEC_HMIC_CTL                    (0x50)
212 #define SUN6I_CODEC_HMIC_DATA                   (0x54)
213 
214 /* TODO sun6i DAP (Digital Audio Processing) bits */
215 
216 /* FIFO counters moved on A23 */
217 #define SUN8I_A23_CODEC_DAC_TXCNT               (0x1c)
218 #define SUN8I_A23_CODEC_ADC_RXCNT               (0x20)
219 
220 /* TX FIFO moved on H3 */
221 #define SUN8I_H3_CODEC_DAC_TXDATA               (0x20)
222 #define SUN8I_H3_CODEC_DAC_DBG                  (0x48)
223 #define SUN8I_H3_CODEC_ADC_DBG                  (0x4c)
224 
225 /* TODO H3 DAP (Digital Audio Processing) bits */
226 
227 struct sun4i_codec {
228         struct device   *dev;
229         struct regmap   *regmap;
230         struct clk      *clk_apb;
231         struct clk      *clk_module;
232         struct reset_control *rst;
233         struct gpio_desc *gpio_pa;
234 
235         /* ADC_FIFOC register is at different offset on different SoCs */
236         struct regmap_field *reg_adc_fifoc;
237 
238         struct snd_dmaengine_dai_dma_data       capture_dma_data;
239         struct snd_dmaengine_dai_dma_data       playback_dma_data;
240 };
241 
242 static void sun4i_codec_start_playback(struct sun4i_codec *scodec)
243 {
244         /* Flush TX FIFO */
245         regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
246                            BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH),
247                            BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH));
248 
249         /* Enable DAC DRQ */
250         regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
251                            BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN),
252                            BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN));
253 }
254 
255 static void sun4i_codec_stop_playback(struct sun4i_codec *scodec)
256 {
257         /* Disable DAC DRQ */
258         regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
259                            BIT(SUN4I_CODEC_DAC_FIFOC_DAC_DRQ_EN),
260                            0);
261 }
262 
263 static void sun4i_codec_start_capture(struct sun4i_codec *scodec)
264 {
265         /* Enable ADC DRQ */
266         regmap_field_update_bits(scodec->reg_adc_fifoc,
267                                  BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN),
268                                  BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN));
269 }
270 
271 static void sun4i_codec_stop_capture(struct sun4i_codec *scodec)
272 {
273         /* Disable ADC DRQ */
274         regmap_field_update_bits(scodec->reg_adc_fifoc,
275                                  BIT(SUN4I_CODEC_ADC_FIFOC_ADC_DRQ_EN), 0);
276 }
277 
278 static int sun4i_codec_trigger(struct snd_pcm_substream *substream, int cmd,
279                                struct snd_soc_dai *dai)
280 {
281         struct snd_soc_pcm_runtime *rtd = substream->private_data;
282         struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
283 
284         switch (cmd) {
285         case SNDRV_PCM_TRIGGER_START:
286         case SNDRV_PCM_TRIGGER_RESUME:
287         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
288                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
289                         sun4i_codec_start_playback(scodec);
290                 else
291                         sun4i_codec_start_capture(scodec);
292                 break;
293 
294         case SNDRV_PCM_TRIGGER_STOP:
295         case SNDRV_PCM_TRIGGER_SUSPEND:
296         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
297                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
298                         sun4i_codec_stop_playback(scodec);
299                 else
300                         sun4i_codec_stop_capture(scodec);
301                 break;
302 
303         default:
304                 return -EINVAL;
305         }
306 
307         return 0;
308 }
309 
310 static int sun4i_codec_prepare_capture(struct snd_pcm_substream *substream,
311                                        struct snd_soc_dai *dai)
312 {
313         struct snd_soc_pcm_runtime *rtd = substream->private_data;
314         struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
315 
316 
317         /* Flush RX FIFO */
318         regmap_field_update_bits(scodec->reg_adc_fifoc,
319                                  BIT(SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH),
320                                  BIT(SUN4I_CODEC_ADC_FIFOC_FIFO_FLUSH));
321 
322 
323         /* Set RX FIFO trigger level */
324         regmap_field_update_bits(scodec->reg_adc_fifoc,
325                                  0xf << SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL,
326                                  0x7 << SUN4I_CODEC_ADC_FIFOC_RX_TRIG_LEVEL);
327 
328         /*
329          * FIXME: Undocumented in the datasheet, but
330          *        Allwinner's code mentions that it is related
331          *        related to microphone gain
332          */
333         if (of_device_is_compatible(scodec->dev->of_node,
334                                     "allwinner,sun4i-a10-codec") ||
335             of_device_is_compatible(scodec->dev->of_node,
336                                     "allwinner,sun7i-a20-codec")) {
337                 regmap_update_bits(scodec->regmap, SUN4I_CODEC_ADC_ACTL,
338                                    0x3 << 25,
339                                    0x1 << 25);
340         }
341 
342         if (of_device_is_compatible(scodec->dev->of_node,
343                                     "allwinner,sun7i-a20-codec"))
344                 /* FIXME: Undocumented bits */
345                 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_TUNE,
346                                    0x3 << 8,
347                                    0x1 << 8);
348 
349         return 0;
350 }
351 
352 static int sun4i_codec_prepare_playback(struct snd_pcm_substream *substream,
353                                         struct snd_soc_dai *dai)
354 {
355         struct snd_soc_pcm_runtime *rtd = substream->private_data;
356         struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
357         u32 val;
358 
359         /* Flush the TX FIFO */
360         regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
361                            BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH),
362                            BIT(SUN4I_CODEC_DAC_FIFOC_FIFO_FLUSH));
363 
364         /* Set TX FIFO Empty Trigger Level */
365         regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
366                            0x3f << SUN4I_CODEC_DAC_FIFOC_TX_TRIG_LEVEL,
367                            0xf << SUN4I_CODEC_DAC_FIFOC_TX_TRIG_LEVEL);
368 
369         if (substream->runtime->rate > 32000)
370                 /* Use 64 bits FIR filter */
371                 val = 0;
372         else
373                 /* Use 32 bits FIR filter */
374                 val = BIT(SUN4I_CODEC_DAC_FIFOC_FIR_VERSION);
375 
376         regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
377                            BIT(SUN4I_CODEC_DAC_FIFOC_FIR_VERSION),
378                            val);
379 
380         /* Send zeros when we have an underrun */
381         regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
382                            BIT(SUN4I_CODEC_DAC_FIFOC_SEND_LASAT),
383                            0);
384 
385         return 0;
386 };
387 
388 static int sun4i_codec_prepare(struct snd_pcm_substream *substream,
389                                struct snd_soc_dai *dai)
390 {
391         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
392                 return sun4i_codec_prepare_playback(substream, dai);
393 
394         return sun4i_codec_prepare_capture(substream, dai);
395 }
396 
397 static unsigned long sun4i_codec_get_mod_freq(struct snd_pcm_hw_params *params)
398 {
399         unsigned int rate = params_rate(params);
400 
401         switch (rate) {
402         case 176400:
403         case 88200:
404         case 44100:
405         case 33075:
406         case 22050:
407         case 14700:
408         case 11025:
409         case 7350:
410                 return 22579200;
411 
412         case 192000:
413         case 96000:
414         case 48000:
415         case 32000:
416         case 24000:
417         case 16000:
418         case 12000:
419         case 8000:
420                 return 24576000;
421 
422         default:
423                 return 0;
424         }
425 }
426 
427 static int sun4i_codec_get_hw_rate(struct snd_pcm_hw_params *params)
428 {
429         unsigned int rate = params_rate(params);
430 
431         switch (rate) {
432         case 192000:
433         case 176400:
434                 return 6;
435 
436         case 96000:
437         case 88200:
438                 return 7;
439 
440         case 48000:
441         case 44100:
442                 return 0;
443 
444         case 32000:
445         case 33075:
446                 return 1;
447 
448         case 24000:
449         case 22050:
450                 return 2;
451 
452         case 16000:
453         case 14700:
454                 return 3;
455 
456         case 12000:
457         case 11025:
458                 return 4;
459 
460         case 8000:
461         case 7350:
462                 return 5;
463 
464         default:
465                 return -EINVAL;
466         }
467 }
468 
469 static int sun4i_codec_hw_params_capture(struct sun4i_codec *scodec,
470                                          struct snd_pcm_hw_params *params,
471                                          unsigned int hwrate)
472 {
473         /* Set ADC sample rate */
474         regmap_field_update_bits(scodec->reg_adc_fifoc,
475                                  7 << SUN4I_CODEC_ADC_FIFOC_ADC_FS,
476                                  hwrate << SUN4I_CODEC_ADC_FIFOC_ADC_FS);
477 
478         /* Set the number of channels we want to use */
479         if (params_channels(params) == 1)
480                 regmap_field_update_bits(scodec->reg_adc_fifoc,
481                                          BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN),
482                                          BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN));
483         else
484                 regmap_field_update_bits(scodec->reg_adc_fifoc,
485                                          BIT(SUN4I_CODEC_ADC_FIFOC_MONO_EN),
486                                          0);
487 
488         /* Set the number of sample bits to either 16 or 24 bits */
489         if (hw_param_interval(params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min == 32) {
490                 regmap_field_update_bits(scodec->reg_adc_fifoc,
491                                    BIT(SUN4I_CODEC_ADC_FIFOC_RX_SAMPLE_BITS),
492                                    BIT(SUN4I_CODEC_ADC_FIFOC_RX_SAMPLE_BITS));
493 
494                 regmap_field_update_bits(scodec->reg_adc_fifoc,
495                                    BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE),
496                                    0);
497 
498                 scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
499         } else {
500                 regmap_field_update_bits(scodec->reg_adc_fifoc,
501                                    BIT(SUN4I_CODEC_ADC_FIFOC_RX_SAMPLE_BITS),
502                                    0);
503 
504                 /* Fill most significant bits with valid data MSB */
505                 regmap_field_update_bits(scodec->reg_adc_fifoc,
506                                    BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE),
507                                    BIT(SUN4I_CODEC_ADC_FIFOC_RX_FIFO_MODE));
508 
509                 scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
510         }
511 
512         return 0;
513 }
514 
515 static int sun4i_codec_hw_params_playback(struct sun4i_codec *scodec,
516                                           struct snd_pcm_hw_params *params,
517                                           unsigned int hwrate)
518 {
519         u32 val;
520 
521         /* Set DAC sample rate */
522         regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
523                            7 << SUN4I_CODEC_DAC_FIFOC_DAC_FS,
524                            hwrate << SUN4I_CODEC_DAC_FIFOC_DAC_FS);
525 
526         /* Set the number of channels we want to use */
527         if (params_channels(params) == 1)
528                 val = BIT(SUN4I_CODEC_DAC_FIFOC_MONO_EN);
529         else
530                 val = 0;
531 
532         regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
533                            BIT(SUN4I_CODEC_DAC_FIFOC_MONO_EN),
534                            val);
535 
536         /* Set the number of sample bits to either 16 or 24 bits */
537         if (hw_param_interval(params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min == 32) {
538                 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
539                                    BIT(SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS),
540                                    BIT(SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS));
541 
542                 /* Set TX FIFO mode to padding the LSBs with 0 */
543                 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
544                                    BIT(SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE),
545                                    0);
546 
547                 scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
548         } else {
549                 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
550                                    BIT(SUN4I_CODEC_DAC_FIFOC_TX_SAMPLE_BITS),
551                                    0);
552 
553                 /* Set TX FIFO mode to repeat the MSB */
554                 regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
555                                    BIT(SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE),
556                                    BIT(SUN4I_CODEC_DAC_FIFOC_TX_FIFO_MODE));
557 
558                 scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
559         }
560 
561         return 0;
562 }
563 
564 static int sun4i_codec_hw_params(struct snd_pcm_substream *substream,
565                                  struct snd_pcm_hw_params *params,
566                                  struct snd_soc_dai *dai)
567 {
568         struct snd_soc_pcm_runtime *rtd = substream->private_data;
569         struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
570         unsigned long clk_freq;
571         int ret, hwrate;
572 
573         clk_freq = sun4i_codec_get_mod_freq(params);
574         if (!clk_freq)
575                 return -EINVAL;
576 
577         ret = clk_set_rate(scodec->clk_module, clk_freq);
578         if (ret)
579                 return ret;
580 
581         hwrate = sun4i_codec_get_hw_rate(params);
582         if (hwrate < 0)
583                 return hwrate;
584 
585         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
586                 return sun4i_codec_hw_params_playback(scodec, params,
587                                                       hwrate);
588 
589         return sun4i_codec_hw_params_capture(scodec, params,
590                                              hwrate);
591 }
592 
593 
594 static unsigned int sun4i_codec_src_rates[] = {
595         8000, 11025, 12000, 16000, 22050, 24000, 32000,
596         44100, 48000, 96000, 192000
597 };
598 
599 
600 static struct snd_pcm_hw_constraint_list sun4i_codec_constraints = {
601         .count  = ARRAY_SIZE(sun4i_codec_src_rates),
602         .list   = sun4i_codec_src_rates,
603 };
604 
605 
606 static int sun4i_codec_startup(struct snd_pcm_substream *substream,
607                                struct snd_soc_dai *dai)
608 {
609         struct snd_soc_pcm_runtime *rtd = substream->private_data;
610         struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
611 
612         snd_pcm_hw_constraint_list(substream->runtime, 0,
613                                 SNDRV_PCM_HW_PARAM_RATE, &sun4i_codec_constraints);
614 
615         /*
616          * Stop issuing DRQ when we have room for less than 16 samples
617          * in our TX FIFO
618          */
619         regmap_update_bits(scodec->regmap, SUN4I_CODEC_DAC_FIFOC,
620                            3 << SUN4I_CODEC_DAC_FIFOC_DRQ_CLR_CNT,
621                            3 << SUN4I_CODEC_DAC_FIFOC_DRQ_CLR_CNT);
622 
623         return clk_prepare_enable(scodec->clk_module);
624 }
625 
626 static void sun4i_codec_shutdown(struct snd_pcm_substream *substream,
627                                  struct snd_soc_dai *dai)
628 {
629         struct snd_soc_pcm_runtime *rtd = substream->private_data;
630         struct sun4i_codec *scodec = snd_soc_card_get_drvdata(rtd->card);
631 
632         clk_disable_unprepare(scodec->clk_module);
633 }
634 
635 static const struct snd_soc_dai_ops sun4i_codec_dai_ops = {
636         .startup        = sun4i_codec_startup,
637         .shutdown       = sun4i_codec_shutdown,
638         .trigger        = sun4i_codec_trigger,
639         .hw_params      = sun4i_codec_hw_params,
640         .prepare        = sun4i_codec_prepare,
641 };
642 
643 static struct snd_soc_dai_driver sun4i_codec_dai = {
644         .name   = "Codec",
645         .ops    = &sun4i_codec_dai_ops,
646         .playback = {
647                 .stream_name    = "Codec Playback",
648                 .channels_min   = 1,
649                 .channels_max   = 2,
650                 .rate_min       = 8000,
651                 .rate_max       = 192000,
652                 .rates          = SNDRV_PCM_RATE_CONTINUOUS,
653                 .formats        = SNDRV_PCM_FMTBIT_S16_LE |
654                                   SNDRV_PCM_FMTBIT_S32_LE,
655                 .sig_bits       = 24,
656         },
657         .capture = {
658                 .stream_name    = "Codec Capture",
659                 .channels_min   = 1,
660                 .channels_max   = 2,
661                 .rate_min       = 8000,
662                 .rate_max       = 48000,
663                 .rates          = SNDRV_PCM_RATE_CONTINUOUS,
664                 .formats        = SNDRV_PCM_FMTBIT_S16_LE |
665                                   SNDRV_PCM_FMTBIT_S32_LE,
666                 .sig_bits       = 24,
667         },
668 };
669 
670 /*** sun4i Codec ***/
671 static const struct snd_kcontrol_new sun4i_codec_pa_mute =
672         SOC_DAPM_SINGLE("Switch", SUN4I_CODEC_DAC_ACTL,
673                         SUN4I_CODEC_DAC_ACTL_PA_MUTE, 1, 0);
674 
675 static DECLARE_TLV_DB_SCALE(sun4i_codec_pa_volume_scale, -6300, 100, 1);
676 
677 static const struct snd_kcontrol_new sun4i_codec_controls[] = {
678         SOC_SINGLE_TLV("Power Amplifier Volume", SUN4I_CODEC_DAC_ACTL,
679                        SUN4I_CODEC_DAC_ACTL_PA_VOL, 0x3F, 0,
680                        sun4i_codec_pa_volume_scale),
681 };
682 
683 static const struct snd_kcontrol_new sun4i_codec_left_mixer_controls[] = {
684         SOC_DAPM_SINGLE("Left DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
685                         SUN4I_CODEC_DAC_ACTL_LDACLMIXS, 1, 0),
686 };
687 
688 static const struct snd_kcontrol_new sun4i_codec_right_mixer_controls[] = {
689         SOC_DAPM_SINGLE("Right DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
690                         SUN4I_CODEC_DAC_ACTL_RDACRMIXS, 1, 0),
691         SOC_DAPM_SINGLE("Left DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
692                         SUN4I_CODEC_DAC_ACTL_LDACRMIXS, 1, 0),
693 };
694 
695 static const struct snd_kcontrol_new sun4i_codec_pa_mixer_controls[] = {
696         SOC_DAPM_SINGLE("DAC Playback Switch", SUN4I_CODEC_DAC_ACTL,
697                         SUN4I_CODEC_DAC_ACTL_DACPAS, 1, 0),
698         SOC_DAPM_SINGLE("Mixer Playback Switch", SUN4I_CODEC_DAC_ACTL,
699                         SUN4I_CODEC_DAC_ACTL_MIXPAS, 1, 0),
700 };
701 
702 static const struct snd_soc_dapm_widget sun4i_codec_codec_dapm_widgets[] = {
703         /* Digital parts of the ADCs */
704         SND_SOC_DAPM_SUPPLY("ADC", SUN4I_CODEC_ADC_FIFOC,
705                             SUN4I_CODEC_ADC_FIFOC_EN_AD, 0,
706                             NULL, 0),
707 
708         /* Digital parts of the DACs */
709         SND_SOC_DAPM_SUPPLY("DAC", SUN4I_CODEC_DAC_DPC,
710                             SUN4I_CODEC_DAC_DPC_EN_DA, 0,
711                             NULL, 0),
712 
713         /* Analog parts of the ADCs */
714         SND_SOC_DAPM_ADC("Left ADC", "Codec Capture", SUN4I_CODEC_ADC_ACTL,
715                          SUN4I_CODEC_ADC_ACTL_ADC_L_EN, 0),
716         SND_SOC_DAPM_ADC("Right ADC", "Codec Capture", SUN4I_CODEC_ADC_ACTL,
717                          SUN4I_CODEC_ADC_ACTL_ADC_R_EN, 0),
718 
719         /* Analog parts of the DACs */
720         SND_SOC_DAPM_DAC("Left DAC", "Codec Playback", SUN4I_CODEC_DAC_ACTL,
721                          SUN4I_CODEC_DAC_ACTL_DACAENL, 0),
722         SND_SOC_DAPM_DAC("Right DAC", "Codec Playback", SUN4I_CODEC_DAC_ACTL,
723                          SUN4I_CODEC_DAC_ACTL_DACAENR, 0),
724 
725         /* Mixers */
726         SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
727                            sun4i_codec_left_mixer_controls,
728                            ARRAY_SIZE(sun4i_codec_left_mixer_controls)),
729         SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
730                            sun4i_codec_right_mixer_controls,
731                            ARRAY_SIZE(sun4i_codec_right_mixer_controls)),
732 
733         /* Global Mixer Enable */
734         SND_SOC_DAPM_SUPPLY("Mixer Enable", SUN4I_CODEC_DAC_ACTL,
735                             SUN4I_CODEC_DAC_ACTL_MIXEN, 0, NULL, 0),
736 
737         /* VMIC */
738         SND_SOC_DAPM_SUPPLY("VMIC", SUN4I_CODEC_ADC_ACTL,
739                             SUN4I_CODEC_ADC_ACTL_VMICEN, 0, NULL, 0),
740 
741         /* Mic Pre-Amplifiers */
742         SND_SOC_DAPM_PGA("MIC1 Pre-Amplifier", SUN4I_CODEC_ADC_ACTL,
743                          SUN4I_CODEC_ADC_ACTL_PREG1EN, 0, NULL, 0),
744 
745         /* Power Amplifier */
746         SND_SOC_DAPM_MIXER("Power Amplifier", SUN4I_CODEC_ADC_ACTL,
747                            SUN4I_CODEC_ADC_ACTL_PA_EN, 0,
748                            sun4i_codec_pa_mixer_controls,
749                            ARRAY_SIZE(sun4i_codec_pa_mixer_controls)),
750         SND_SOC_DAPM_SWITCH("Power Amplifier Mute", SND_SOC_NOPM, 0, 0,
751                             &sun4i_codec_pa_mute),
752 
753         SND_SOC_DAPM_INPUT("Mic1"),
754 
755         SND_SOC_DAPM_OUTPUT("HP Right"),
756         SND_SOC_DAPM_OUTPUT("HP Left"),
757 };
758 
759 static const struct snd_soc_dapm_route sun4i_codec_codec_dapm_routes[] = {
760         /* Left ADC / DAC Routes */
761         { "Left ADC", NULL, "ADC" },
762         { "Left DAC", NULL, "DAC" },
763 
764         /* Right ADC / DAC Routes */
765         { "Right ADC", NULL, "ADC" },
766         { "Right DAC", NULL, "DAC" },
767 
768         /* Right Mixer Routes */
769         { "Right Mixer", NULL, "Mixer Enable" },
770         { "Right Mixer", "Left DAC Playback Switch", "Left DAC" },
771         { "Right Mixer", "Right DAC Playback Switch", "Right DAC" },
772 
773         /* Left Mixer Routes */
774         { "Left Mixer", NULL, "Mixer Enable" },
775         { "Left Mixer", "Left DAC Playback Switch", "Left DAC" },
776 
777         /* Power Amplifier Routes */
778         { "Power Amplifier", "Mixer Playback Switch", "Left Mixer" },
779         { "Power Amplifier", "Mixer Playback Switch", "Right Mixer" },
780         { "Power Amplifier", "DAC Playback Switch", "Left DAC" },
781         { "Power Amplifier", "DAC Playback Switch", "Right DAC" },
782 
783         /* Headphone Output Routes */
784         { "Power Amplifier Mute", "Switch", "Power Amplifier" },
785         { "HP Right", NULL, "Power Amplifier Mute" },
786         { "HP Left", NULL, "Power Amplifier Mute" },
787 
788         /* Mic1 Routes */
789         { "Left ADC", NULL, "MIC1 Pre-Amplifier" },
790         { "Right ADC", NULL, "MIC1 Pre-Amplifier" },
791         { "MIC1 Pre-Amplifier", NULL, "Mic1"},
792         { "Mic1", NULL, "VMIC" },
793 };
794 
795 static const struct snd_soc_component_driver sun4i_codec_codec = {
796         .controls               = sun4i_codec_controls,
797         .num_controls           = ARRAY_SIZE(sun4i_codec_controls),
798         .dapm_widgets           = sun4i_codec_codec_dapm_widgets,
799         .num_dapm_widgets       = ARRAY_SIZE(sun4i_codec_codec_dapm_widgets),
800         .dapm_routes            = sun4i_codec_codec_dapm_routes,
801         .num_dapm_routes        = ARRAY_SIZE(sun4i_codec_codec_dapm_routes),
802         .idle_bias_on           = 1,
803         .use_pmdown_time        = 1,
804         .endianness             = 1,
805         .non_legacy_dai_naming  = 1,
806 };
807 
808 /*** sun6i Codec ***/
809 
810 /* mixer controls */
811 static const struct snd_kcontrol_new sun6i_codec_mixer_controls[] = {
812         SOC_DAPM_DOUBLE("DAC Playback Switch",
813                         SUN6I_CODEC_OM_DACA_CTRL,
814                         SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACL,
815                         SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACR, 1, 0),
816         SOC_DAPM_DOUBLE("DAC Reversed Playback Switch",
817                         SUN6I_CODEC_OM_DACA_CTRL,
818                         SUN6I_CODEC_OM_DACA_CTRL_LMIX_DACR,
819                         SUN6I_CODEC_OM_DACA_CTRL_RMIX_DACL, 1, 0),
820         SOC_DAPM_DOUBLE("Line In Playback Switch",
821                         SUN6I_CODEC_OM_DACA_CTRL,
822                         SUN6I_CODEC_OM_DACA_CTRL_LMIX_LINEINL,
823                         SUN6I_CODEC_OM_DACA_CTRL_RMIX_LINEINR, 1, 0),
824         SOC_DAPM_DOUBLE("Mic1 Playback Switch",
825                         SUN6I_CODEC_OM_DACA_CTRL,
826                         SUN6I_CODEC_OM_DACA_CTRL_LMIX_MIC1,
827                         SUN6I_CODEC_OM_DACA_CTRL_RMIX_MIC1, 1, 0),
828         SOC_DAPM_DOUBLE("Mic2 Playback Switch",
829                         SUN6I_CODEC_OM_DACA_CTRL,
830                         SUN6I_CODEC_OM_DACA_CTRL_LMIX_MIC2,
831                         SUN6I_CODEC_OM_DACA_CTRL_RMIX_MIC2, 1, 0),
832 };
833 
834 /* ADC mixer controls */
835 static const struct snd_kcontrol_new sun6i_codec_adc_mixer_controls[] = {
836         SOC_DAPM_DOUBLE("Mixer Capture Switch",
837                         SUN6I_CODEC_ADC_ACTL,
838                         SUN6I_CODEC_ADC_ACTL_LADCMIX_OMIXL,
839                         SUN6I_CODEC_ADC_ACTL_RADCMIX_OMIXR, 1, 0),
840         SOC_DAPM_DOUBLE("Mixer Reversed Capture Switch",
841                         SUN6I_CODEC_ADC_ACTL,
842                         SUN6I_CODEC_ADC_ACTL_LADCMIX_OMIXR,
843                         SUN6I_CODEC_ADC_ACTL_RADCMIX_OMIXL, 1, 0),
844         SOC_DAPM_DOUBLE("Line In Capture Switch",
845                         SUN6I_CODEC_ADC_ACTL,
846                         SUN6I_CODEC_ADC_ACTL_LADCMIX_LINEINL,
847                         SUN6I_CODEC_ADC_ACTL_RADCMIX_LINEINR, 1, 0),
848         SOC_DAPM_DOUBLE("Mic1 Capture Switch",
849                         SUN6I_CODEC_ADC_ACTL,
850                         SUN6I_CODEC_ADC_ACTL_LADCMIX_MIC1,
851                         SUN6I_CODEC_ADC_ACTL_RADCMIX_MIC1, 1, 0),
852         SOC_DAPM_DOUBLE("Mic2 Capture Switch",
853                         SUN6I_CODEC_ADC_ACTL,
854                         SUN6I_CODEC_ADC_ACTL_LADCMIX_MIC2,
855                         SUN6I_CODEC_ADC_ACTL_RADCMIX_MIC2, 1, 0),
856 };
857 
858 /* headphone controls */
859 static const char * const sun6i_codec_hp_src_enum_text[] = {
860         "DAC", "Mixer",
861 };
862 
863 static SOC_ENUM_DOUBLE_DECL(sun6i_codec_hp_src_enum,
864                             SUN6I_CODEC_OM_DACA_CTRL,
865                             SUN6I_CODEC_OM_DACA_CTRL_LHPIS,
866                             SUN6I_CODEC_OM_DACA_CTRL_RHPIS,
867                             sun6i_codec_hp_src_enum_text);
868 
869 static const struct snd_kcontrol_new sun6i_codec_hp_src[] = {
870         SOC_DAPM_ENUM("Headphone Source Playback Route",
871                       sun6i_codec_hp_src_enum),
872 };
873 
874 /* microphone controls */
875 static const char * const sun6i_codec_mic2_src_enum_text[] = {
876         "Mic2", "Mic3",
877 };
878 
879 static SOC_ENUM_SINGLE_DECL(sun6i_codec_mic2_src_enum,
880                             SUN6I_CODEC_MIC_CTRL,
881                             SUN6I_CODEC_MIC_CTRL_MIC2SLT,
882                             sun6i_codec_mic2_src_enum_text);
883 
884 static const struct snd_kcontrol_new sun6i_codec_mic2_src[] = {
885         SOC_DAPM_ENUM("Mic2 Amplifier Source Route",
886                       sun6i_codec_mic2_src_enum),
887 };
888 
889 /* line out controls */
890 static const char * const sun6i_codec_lineout_src_enum_text[] = {
891         "Stereo", "Mono Differential",
892 };
893 
894 static SOC_ENUM_DOUBLE_DECL(sun6i_codec_lineout_src_enum,
895                             SUN6I_CODEC_MIC_CTRL,
896                             SUN6I_CODEC_MIC_CTRL_LINEOUTLSRC,
897                             SUN6I_CODEC_MIC_CTRL_LINEOUTRSRC,
898                             sun6i_codec_lineout_src_enum_text);
899 
900 static const struct snd_kcontrol_new sun6i_codec_lineout_src[] = {
901         SOC_DAPM_ENUM("Line Out Source Playback Route",
902                       sun6i_codec_lineout_src_enum),
903 };
904 
905 /* volume / mute controls */
906 static const DECLARE_TLV_DB_SCALE(sun6i_codec_dvol_scale, -7308, 116, 0);
907 static const DECLARE_TLV_DB_SCALE(sun6i_codec_hp_vol_scale, -6300, 100, 1);
908 static const DECLARE_TLV_DB_SCALE(sun6i_codec_out_mixer_pregain_scale,
909                                   -450, 150, 0);
910 static const DECLARE_TLV_DB_RANGE(sun6i_codec_lineout_vol_scale,
911         0, 1, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
912         2, 31, TLV_DB_SCALE_ITEM(-4350, 150, 0),
913 );
914 static const DECLARE_TLV_DB_RANGE(sun6i_codec_mic_gain_scale,
915         0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
916         1, 7, TLV_DB_SCALE_ITEM(2400, 300, 0),
917 );
918 
919 static const struct snd_kcontrol_new sun6i_codec_codec_widgets[] = {
920         SOC_SINGLE_TLV("DAC Playback Volume", SUN4I_CODEC_DAC_DPC,
921                        SUN4I_CODEC_DAC_DPC_DVOL, 0x3f, 1,
922                        sun6i_codec_dvol_scale),
923         SOC_SINGLE_TLV("Headphone Playback Volume",
924                        SUN6I_CODEC_OM_DACA_CTRL,
925                        SUN6I_CODEC_OM_DACA_CTRL_HPVOL, 0x3f, 0,
926                        sun6i_codec_hp_vol_scale),
927         SOC_SINGLE_TLV("Line Out Playback Volume",
928                        SUN6I_CODEC_MIC_CTRL,
929                        SUN6I_CODEC_MIC_CTRL_LINEOUTVC, 0x1f, 0,
930                        sun6i_codec_lineout_vol_scale),
931         SOC_DOUBLE("Headphone Playback Switch",
932                    SUN6I_CODEC_OM_DACA_CTRL,
933                    SUN6I_CODEC_OM_DACA_CTRL_LHPPAMUTE,
934                    SUN6I_CODEC_OM_DACA_CTRL_RHPPAMUTE, 1, 0),
935         SOC_DOUBLE("Line Out Playback Switch",
936                    SUN6I_CODEC_MIC_CTRL,
937                    SUN6I_CODEC_MIC_CTRL_LINEOUTLEN,
938                    SUN6I_CODEC_MIC_CTRL_LINEOUTREN, 1, 0),
939         /* Mixer pre-gains */
940         SOC_SINGLE_TLV("Line In Playback Volume",
941                        SUN6I_CODEC_OM_PA_CTRL, SUN6I_CODEC_OM_PA_CTRL_LINEING,
942                        0x7, 0, sun6i_codec_out_mixer_pregain_scale),
943         SOC_SINGLE_TLV("Mic1 Playback Volume",
944                        SUN6I_CODEC_OM_PA_CTRL, SUN6I_CODEC_OM_PA_CTRL_MIC1G,
945                        0x7, 0, sun6i_codec_out_mixer_pregain_scale),
946         SOC_SINGLE_TLV("Mic2 Playback Volume",
947                        SUN6I_CODEC_OM_PA_CTRL, SUN6I_CODEC_OM_PA_CTRL_MIC2G,
948                        0x7, 0, sun6i_codec_out_mixer_pregain_scale),
949 
950         /* Microphone Amp boost gains */
951         SOC_SINGLE_TLV("Mic1 Boost Volume", SUN6I_CODEC_MIC_CTRL,
952                        SUN6I_CODEC_MIC_CTRL_MIC1BOOST, 0x7, 0,
953                        sun6i_codec_mic_gain_scale),
954         SOC_SINGLE_TLV("Mic2 Boost Volume", SUN6I_CODEC_MIC_CTRL,
955                        SUN6I_CODEC_MIC_CTRL_MIC2BOOST, 0x7, 0,
956                        sun6i_codec_mic_gain_scale),
957         SOC_DOUBLE_TLV("ADC Capture Volume",
958                        SUN6I_CODEC_ADC_ACTL, SUN6I_CODEC_ADC_ACTL_ADCLG,
959                        SUN6I_CODEC_ADC_ACTL_ADCRG, 0x7, 0,
960                        sun6i_codec_out_mixer_pregain_scale),
961 };
962 
963 static const struct snd_soc_dapm_widget sun6i_codec_codec_dapm_widgets[] = {
964         /* Microphone inputs */
965         SND_SOC_DAPM_INPUT("MIC1"),
966         SND_SOC_DAPM_INPUT("MIC2"),
967         SND_SOC_DAPM_INPUT("MIC3"),
968 
969         /* Microphone Bias */
970         SND_SOC_DAPM_SUPPLY("HBIAS", SUN6I_CODEC_MIC_CTRL,
971                             SUN6I_CODEC_MIC_CTRL_HBIASEN, 0, NULL, 0),
972         SND_SOC_DAPM_SUPPLY("MBIAS", SUN6I_CODEC_MIC_CTRL,
973                             SUN6I_CODEC_MIC_CTRL_MBIASEN, 0, NULL, 0),
974 
975         /* Mic input path */
976         SND_SOC_DAPM_MUX("Mic2 Amplifier Source Route",
977                          SND_SOC_NOPM, 0, 0, sun6i_codec_mic2_src),
978         SND_SOC_DAPM_PGA("Mic1 Amplifier", SUN6I_CODEC_MIC_CTRL,
979                          SUN6I_CODEC_MIC_CTRL_MIC1AMPEN, 0, NULL, 0),
980         SND_SOC_DAPM_PGA("Mic2 Amplifier", SUN6I_CODEC_MIC_CTRL,
981                          SUN6I_CODEC_MIC_CTRL_MIC2AMPEN, 0, NULL, 0),
982 
983         /* Line In */
984         SND_SOC_DAPM_INPUT("LINEIN"),
985 
986         /* Digital parts of the ADCs */
987         SND_SOC_DAPM_SUPPLY("ADC Enable", SUN6I_CODEC_ADC_FIFOC,
988                             SUN6I_CODEC_ADC_FIFOC_EN_AD, 0,
989                             NULL, 0),
990 
991         /* Analog parts of the ADCs */
992         SND_SOC_DAPM_ADC("Left ADC", "Codec Capture", SUN6I_CODEC_ADC_ACTL,
993                          SUN6I_CODEC_ADC_ACTL_ADCLEN, 0),
994         SND_SOC_DAPM_ADC("Right ADC", "Codec Capture", SUN6I_CODEC_ADC_ACTL,
995                          SUN6I_CODEC_ADC_ACTL_ADCREN, 0),
996 
997         /* ADC Mixers */
998         SOC_MIXER_ARRAY("Left ADC Mixer", SND_SOC_NOPM, 0, 0,
999                         sun6i_codec_adc_mixer_controls),
1000         SOC_MIXER_ARRAY("Right ADC Mixer", SND_SOC_NOPM, 0, 0,
1001                         sun6i_codec_adc_mixer_controls),
1002 
1003         /* Digital parts of the DACs */
1004         SND_SOC_DAPM_SUPPLY("DAC Enable", SUN4I_CODEC_DAC_DPC,
1005                             SUN4I_CODEC_DAC_DPC_EN_DA, 0,
1006                             NULL, 0),
1007 
1008         /* Analog parts of the DACs */
1009         SND_SOC_DAPM_DAC("Left DAC", "Codec Playback",
1010                          SUN6I_CODEC_OM_DACA_CTRL,
1011                          SUN6I_CODEC_OM_DACA_CTRL_DACALEN, 0),
1012         SND_SOC_DAPM_DAC("Right DAC", "Codec Playback",
1013                          SUN6I_CODEC_OM_DACA_CTRL,
1014                          SUN6I_CODEC_OM_DACA_CTRL_DACAREN, 0),
1015 
1016         /* Mixers */
1017         SOC_MIXER_ARRAY("Left Mixer", SUN6I_CODEC_OM_DACA_CTRL,
1018                         SUN6I_CODEC_OM_DACA_CTRL_LMIXEN, 0,
1019                         sun6i_codec_mixer_controls),
1020         SOC_MIXER_ARRAY("Right Mixer", SUN6I_CODEC_OM_DACA_CTRL,
1021                         SUN6I_CODEC_OM_DACA_CTRL_RMIXEN, 0,
1022                         sun6i_codec_mixer_controls),
1023 
1024         /* Headphone output path */
1025         SND_SOC_DAPM_MUX("Headphone Source Playback Route",
1026                          SND_SOC_NOPM, 0, 0, sun6i_codec_hp_src),
1027         SND_SOC_DAPM_OUT_DRV("Headphone Amp", SUN6I_CODEC_OM_PA_CTRL,
1028                              SUN6I_CODEC_OM_PA_CTRL_HPPAEN, 0, NULL, 0),
1029         SND_SOC_DAPM_SUPPLY("HPCOM Protection", SUN6I_CODEC_OM_PA_CTRL,
1030                             SUN6I_CODEC_OM_PA_CTRL_COMPTEN, 0, NULL, 0),
1031         SND_SOC_DAPM_REG(snd_soc_dapm_supply, "HPCOM", SUN6I_CODEC_OM_PA_CTRL,
1032                          SUN6I_CODEC_OM_PA_CTRL_HPCOM_CTL, 0x3, 0x3, 0),
1033         SND_SOC_DAPM_OUTPUT("HP"),
1034 
1035         /* Line Out path */
1036         SND_SOC_DAPM_MUX("Line Out Source Playback Route",
1037                          SND_SOC_NOPM, 0, 0, sun6i_codec_lineout_src),
1038         SND_SOC_DAPM_OUTPUT("LINEOUT"),
1039 };
1040 
1041 static const struct snd_soc_dapm_route sun6i_codec_codec_dapm_routes[] = {
1042         /* DAC Routes */
1043         { "Left DAC", NULL, "DAC Enable" },
1044         { "Right DAC", NULL, "DAC Enable" },
1045 
1046         /* Microphone Routes */
1047         { "Mic1 Amplifier", NULL, "MIC1"},
1048         { "Mic2 Amplifier Source Route", "Mic2", "MIC2" },
1049         { "Mic2 Amplifier Source Route", "Mic3", "MIC3" },
1050         { "Mic2 Amplifier", NULL, "Mic2 Amplifier Source Route"},
1051 
1052         /* Left Mixer Routes */
1053         { "Left Mixer", "DAC Playback Switch", "Left DAC" },
1054         { "Left Mixer", "DAC Reversed Playback Switch", "Right DAC" },
1055         { "Left Mixer", "Line In Playback Switch", "LINEIN" },
1056         { "Left Mixer", "Mic1 Playback Switch", "Mic1 Amplifier" },
1057         { "Left Mixer", "Mic2 Playback Switch", "Mic2 Amplifier" },
1058 
1059         /* Right Mixer Routes */
1060         { "Right Mixer", "DAC Playback Switch", "Right DAC" },
1061         { "Right Mixer", "DAC Reversed Playback Switch", "Left DAC" },
1062         { "Right Mixer", "Line In Playback Switch", "LINEIN" },
1063         { "Right Mixer", "Mic1 Playback Switch", "Mic1 Amplifier" },
1064         { "Right Mixer", "Mic2 Playback Switch", "Mic2 Amplifier" },
1065 
1066         /* Left ADC Mixer Routes */
1067         { "Left ADC Mixer", "Mixer Capture Switch", "Left Mixer" },
1068         { "Left ADC Mixer", "Mixer Reversed Capture Switch", "Right Mixer" },
1069         { "Left ADC Mixer", "Line In Capture Switch", "LINEIN" },
1070         { "Left ADC Mixer", "Mic1 Capture Switch", "Mic1 Amplifier" },
1071         { "Left ADC Mixer", "Mic2 Capture Switch", "Mic2 Amplifier" },
1072 
1073         /* Right ADC Mixer Routes */
1074         { "Right ADC Mixer", "Mixer Capture Switch", "Right Mixer" },
1075         { "Right ADC Mixer", "Mixer Reversed Capture Switch", "Left Mixer" },
1076         { "Right ADC Mixer", "Line In Capture Switch", "LINEIN" },
1077         { "Right ADC Mixer", "Mic1 Capture Switch", "Mic1 Amplifier" },
1078         { "Right ADC Mixer", "Mic2 Capture Switch", "Mic2 Amplifier" },
1079 
1080         /* Headphone Routes */
1081         { "Headphone Source Playback Route", "DAC", "Left DAC" },
1082         { "Headphone Source Playback Route", "DAC", "Right DAC" },
1083         { "Headphone Source Playback Route", "Mixer", "Left Mixer" },
1084         { "Headphone Source Playback Route", "Mixer", "Right Mixer" },
1085         { "Headphone Amp", NULL, "Headphone Source Playback Route" },
1086         { "HP", NULL, "Headphone Amp" },
1087         { "HPCOM", NULL, "HPCOM Protection" },
1088 
1089         /* Line Out Routes */
1090         { "Line Out Source Playback Route", "Stereo", "Left Mixer" },
1091         { "Line Out Source Playback Route", "Stereo", "Right Mixer" },
1092         { "Line Out Source Playback Route", "Mono Differential", "Left Mixer" },
1093         { "Line Out Source Playback Route", "Mono Differential", "Right Mixer" },
1094         { "LINEOUT", NULL, "Line Out Source Playback Route" },
1095 
1096         /* ADC Routes */
1097         { "Left ADC", NULL, "ADC Enable" },
1098         { "Right ADC", NULL, "ADC Enable" },
1099         { "Left ADC", NULL, "Left ADC Mixer" },
1100         { "Right ADC", NULL, "Right ADC Mixer" },
1101 };
1102 
1103 static const struct snd_soc_component_driver sun6i_codec_codec = {
1104         .controls               = sun6i_codec_codec_widgets,
1105         .num_controls           = ARRAY_SIZE(sun6i_codec_codec_widgets),
1106         .dapm_widgets           = sun6i_codec_codec_dapm_widgets,
1107         .num_dapm_widgets       = ARRAY_SIZE(sun6i_codec_codec_dapm_widgets),
1108         .dapm_routes            = sun6i_codec_codec_dapm_routes,
1109         .num_dapm_routes        = ARRAY_SIZE(sun6i_codec_codec_dapm_routes),
1110         .idle_bias_on           = 1,
1111         .use_pmdown_time        = 1,
1112         .endianness             = 1,
1113         .non_legacy_dai_naming  = 1,
1114 };
1115 
1116 /* sun8i A23 codec */
1117 static const struct snd_kcontrol_new sun8i_a23_codec_codec_controls[] = {
1118         SOC_SINGLE_TLV("DAC Playback Volume", SUN4I_CODEC_DAC_DPC,
1119                        SUN4I_CODEC_DAC_DPC_DVOL, 0x3f, 1,
1120                        sun6i_codec_dvol_scale),
1121 };
1122 
1123 static const struct snd_soc_dapm_widget sun8i_a23_codec_codec_widgets[] = {
1124         /* Digital parts of the ADCs */
1125         SND_SOC_DAPM_SUPPLY("ADC Enable", SUN6I_CODEC_ADC_FIFOC,
1126                             SUN6I_CODEC_ADC_FIFOC_EN_AD, 0, NULL, 0),
1127         /* Digital parts of the DACs */
1128         SND_SOC_DAPM_SUPPLY("DAC Enable", SUN4I_CODEC_DAC_DPC,
1129                             SUN4I_CODEC_DAC_DPC_EN_DA, 0, NULL, 0),
1130 
1131 };
1132 
1133 static const struct snd_soc_component_driver sun8i_a23_codec_codec = {
1134         .controls               = sun8i_a23_codec_codec_controls,
1135         .num_controls           = ARRAY_SIZE(sun8i_a23_codec_codec_controls),
1136         .dapm_widgets           = sun8i_a23_codec_codec_widgets,
1137         .num_dapm_widgets       = ARRAY_SIZE(sun8i_a23_codec_codec_widgets),
1138         .idle_bias_on           = 1,
1139         .use_pmdown_time        = 1,
1140         .endianness             = 1,
1141         .non_legacy_dai_naming  = 1,
1142 };
1143 
1144 static const struct snd_soc_component_driver sun4i_codec_component = {
1145         .name = "sun4i-codec",
1146 };
1147 
1148 #define SUN4I_CODEC_RATES       SNDRV_PCM_RATE_CONTINUOUS
1149 #define SUN4I_CODEC_FORMATS     (SNDRV_PCM_FMTBIT_S16_LE | \
1150                                  SNDRV_PCM_FMTBIT_S32_LE)
1151 
1152 static int sun4i_codec_dai_probe(struct snd_soc_dai *dai)
1153 {
1154         struct snd_soc_card *card = snd_soc_dai_get_drvdata(dai);
1155         struct sun4i_codec *scodec = snd_soc_card_get_drvdata(card);
1156 
1157         snd_soc_dai_init_dma_data(dai, &scodec->playback_dma_data,
1158                                   &scodec->capture_dma_data);
1159 
1160         return 0;
1161 }
1162 
1163 static struct snd_soc_dai_driver dummy_cpu_dai = {
1164         .name   = "sun4i-codec-cpu-dai",
1165         .probe  = sun4i_codec_dai_probe,
1166         .playback = {
1167                 .stream_name    = "Playback",
1168                 .channels_min   = 1,
1169                 .channels_max   = 2,
1170                 .rates          = SUN4I_CODEC_RATES,
1171                 .formats        = SUN4I_CODEC_FORMATS,
1172                 .sig_bits       = 24,
1173         },
1174         .capture = {
1175                 .stream_name    = "Capture",
1176                 .channels_min   = 1,
1177                 .channels_max   = 2,
1178                 .rates          = SUN4I_CODEC_RATES,
1179                 .formats        = SUN4I_CODEC_FORMATS,
1180                 .sig_bits       = 24,
1181          },
1182 };
1183 
1184 static struct snd_soc_dai_link *sun4i_codec_create_link(struct device *dev,
1185                                                         int *num_links)
1186 {
1187         struct snd_soc_dai_link *link = devm_kzalloc(dev, sizeof(*link),
1188                                                      GFP_KERNEL);
1189         if (!link)
1190                 return NULL;
1191 
1192         link->name              = "cdc";
1193         link->stream_name       = "CDC PCM";
1194         link->codec_dai_name    = "Codec";
1195         link->cpu_dai_name      = dev_name(dev);
1196         link->codec_name        = dev_name(dev);
1197         link->platform_name     = dev_name(dev);
1198         link->dai_fmt           = SND_SOC_DAIFMT_I2S;
1199 
1200         *num_links = 1;
1201 
1202         return link;
1203 };
1204 
1205 static int sun4i_codec_spk_event(struct snd_soc_dapm_widget *w,
1206                                  struct snd_kcontrol *k, int event)
1207 {
1208         struct sun4i_codec *scodec = snd_soc_card_get_drvdata(w->dapm->card);
1209 
1210         gpiod_set_value_cansleep(scodec->gpio_pa,
1211                                  !!SND_SOC_DAPM_EVENT_ON(event));
1212 
1213         return 0;
1214 }
1215 
1216 static const struct snd_soc_dapm_widget sun4i_codec_card_dapm_widgets[] = {
1217         SND_SOC_DAPM_SPK("Speaker", sun4i_codec_spk_event),
1218 };
1219 
1220 static const struct snd_soc_dapm_route sun4i_codec_card_dapm_routes[] = {
1221         { "Speaker", NULL, "HP Right" },
1222         { "Speaker", NULL, "HP Left" },
1223 };
1224 
1225 static struct snd_soc_card *sun4i_codec_create_card(struct device *dev)
1226 {
1227         struct snd_soc_card *card;
1228 
1229         card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
1230         if (!card)
1231                 return ERR_PTR(-ENOMEM);
1232 
1233         card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
1234         if (!card->dai_link)
1235                 return ERR_PTR(-ENOMEM);
1236 
1237         card->dev               = dev;
1238         card->name              = "sun4i-codec";
1239         card->dapm_widgets      = sun4i_codec_card_dapm_widgets;
1240         card->num_dapm_widgets  = ARRAY_SIZE(sun4i_codec_card_dapm_widgets);
1241         card->dapm_routes       = sun4i_codec_card_dapm_routes;
1242         card->num_dapm_routes   = ARRAY_SIZE(sun4i_codec_card_dapm_routes);
1243 
1244         return card;
1245 };
1246 
1247 static const struct snd_soc_dapm_widget sun6i_codec_card_dapm_widgets[] = {
1248         SND_SOC_DAPM_HP("Headphone", NULL),
1249         SND_SOC_DAPM_LINE("Line In", NULL),
1250         SND_SOC_DAPM_LINE("Line Out", NULL),
1251         SND_SOC_DAPM_MIC("Headset Mic", NULL),
1252         SND_SOC_DAPM_MIC("Mic", NULL),
1253         SND_SOC_DAPM_SPK("Speaker", sun4i_codec_spk_event),
1254 };
1255 
1256 static struct snd_soc_card *sun6i_codec_create_card(struct device *dev)
1257 {
1258         struct snd_soc_card *card;
1259         int ret;
1260 
1261         card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
1262         if (!card)
1263                 return ERR_PTR(-ENOMEM);
1264 
1265         card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
1266         if (!card->dai_link)
1267                 return ERR_PTR(-ENOMEM);
1268 
1269         card->dev               = dev;
1270         card->name              = "A31 Audio Codec";
1271         card->dapm_widgets      = sun6i_codec_card_dapm_widgets;
1272         card->num_dapm_widgets  = ARRAY_SIZE(sun6i_codec_card_dapm_widgets);
1273         card->fully_routed      = true;
1274 
1275         ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
1276         if (ret)
1277                 dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
1278 
1279         return card;
1280 };
1281 
1282 /* Connect digital side enables to analog side widgets */
1283 static const struct snd_soc_dapm_route sun8i_codec_card_routes[] = {
1284         /* ADC Routes */
1285         { "Left ADC", NULL, "ADC Enable" },
1286         { "Right ADC", NULL, "ADC Enable" },
1287         { "Codec Capture", NULL, "Left ADC" },
1288         { "Codec Capture", NULL, "Right ADC" },
1289 
1290         /* DAC Routes */
1291         { "Left DAC", NULL, "DAC Enable" },
1292         { "Right DAC", NULL, "DAC Enable" },
1293         { "Left DAC", NULL, "Codec Playback" },
1294         { "Right DAC", NULL, "Codec Playback" },
1295 };
1296 
1297 static struct snd_soc_aux_dev aux_dev = {
1298         .name = "Codec Analog Controls",
1299 };
1300 
1301 static struct snd_soc_card *sun8i_a23_codec_create_card(struct device *dev)
1302 {
1303         struct snd_soc_card *card;
1304         int ret;
1305 
1306         card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
1307         if (!card)
1308                 return ERR_PTR(-ENOMEM);
1309 
1310         aux_dev.codec_of_node = of_parse_phandle(dev->of_node,
1311                                                  "allwinner,codec-analog-controls",
1312                                                  0);
1313         if (!aux_dev.codec_of_node) {
1314                 dev_err(dev, "Can't find analog controls for codec.\n");
1315                 return ERR_PTR(-EINVAL);
1316         };
1317 
1318         card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
1319         if (!card->dai_link)
1320                 return ERR_PTR(-ENOMEM);
1321 
1322         card->dev               = dev;
1323         card->name              = "A23 Audio Codec";
1324         card->dapm_widgets      = sun6i_codec_card_dapm_widgets;
1325         card->num_dapm_widgets  = ARRAY_SIZE(sun6i_codec_card_dapm_widgets);
1326         card->dapm_routes       = sun8i_codec_card_routes;
1327         card->num_dapm_routes   = ARRAY_SIZE(sun8i_codec_card_routes);
1328         card->aux_dev           = &aux_dev;
1329         card->num_aux_devs      = 1;
1330         card->fully_routed      = true;
1331 
1332         ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
1333         if (ret)
1334                 dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
1335 
1336         return card;
1337 };
1338 
1339 static struct snd_soc_card *sun8i_h3_codec_create_card(struct device *dev)
1340 {
1341         struct snd_soc_card *card;
1342         int ret;
1343 
1344         card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
1345         if (!card)
1346                 return ERR_PTR(-ENOMEM);
1347 
1348         aux_dev.codec_of_node = of_parse_phandle(dev->of_node,
1349                                                  "allwinner,codec-analog-controls",
1350                                                  0);
1351         if (!aux_dev.codec_of_node) {
1352                 dev_err(dev, "Can't find analog controls for codec.\n");
1353                 return ERR_PTR(-EINVAL);
1354         };
1355 
1356         card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
1357         if (!card->dai_link)
1358                 return ERR_PTR(-ENOMEM);
1359 
1360         card->dev               = dev;
1361         card->name              = "H3 Audio Codec";
1362         card->dapm_widgets      = sun6i_codec_card_dapm_widgets;
1363         card->num_dapm_widgets  = ARRAY_SIZE(sun6i_codec_card_dapm_widgets);
1364         card->dapm_routes       = sun8i_codec_card_routes;
1365         card->num_dapm_routes   = ARRAY_SIZE(sun8i_codec_card_routes);
1366         card->aux_dev           = &aux_dev;
1367         card->num_aux_devs      = 1;
1368         card->fully_routed      = true;
1369 
1370         ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
1371         if (ret)
1372                 dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
1373 
1374         return card;
1375 };
1376 
1377 static struct snd_soc_card *sun8i_v3s_codec_create_card(struct device *dev)
1378 {
1379         struct snd_soc_card *card;
1380         int ret;
1381 
1382         card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
1383         if (!card)
1384                 return ERR_PTR(-ENOMEM);
1385 
1386         aux_dev.codec_of_node = of_parse_phandle(dev->of_node,
1387                                                  "allwinner,codec-analog-controls",
1388                                                  0);
1389         if (!aux_dev.codec_of_node) {
1390                 dev_err(dev, "Can't find analog controls for codec.\n");
1391                 return ERR_PTR(-EINVAL);
1392         };
1393 
1394         card->dai_link = sun4i_codec_create_link(dev, &card->num_links);
1395         if (!card->dai_link)
1396                 return ERR_PTR(-ENOMEM);
1397 
1398         card->dev               = dev;
1399         card->name              = "V3s Audio Codec";
1400         card->dapm_widgets      = sun6i_codec_card_dapm_widgets;
1401         card->num_dapm_widgets  = ARRAY_SIZE(sun6i_codec_card_dapm_widgets);
1402         card->dapm_routes       = sun8i_codec_card_routes;
1403         card->num_dapm_routes   = ARRAY_SIZE(sun8i_codec_card_routes);
1404         card->aux_dev           = &aux_dev;
1405         card->num_aux_devs      = 1;
1406         card->fully_routed      = true;
1407 
1408         ret = snd_soc_of_parse_audio_routing(card, "allwinner,audio-routing");
1409         if (ret)
1410                 dev_warn(dev, "failed to parse audio-routing: %d\n", ret);
1411 
1412         return card;
1413 };
1414 
1415 static const struct regmap_config sun4i_codec_regmap_config = {
1416         .reg_bits       = 32,
1417         .reg_stride     = 4,
1418         .val_bits       = 32,
1419         .max_register   = SUN4I_CODEC_ADC_RXCNT,
1420 };
1421 
1422 static const struct regmap_config sun6i_codec_regmap_config = {
1423         .reg_bits       = 32,
1424         .reg_stride     = 4,
1425         .val_bits       = 32,
1426         .max_register   = SUN6I_CODEC_HMIC_DATA,
1427 };
1428 
1429 static const struct regmap_config sun7i_codec_regmap_config = {
1430         .reg_bits       = 32,
1431         .reg_stride     = 4,
1432         .val_bits       = 32,
1433         .max_register   = SUN7I_CODEC_AC_MIC_PHONE_CAL,
1434 };
1435 
1436 static const struct regmap_config sun8i_a23_codec_regmap_config = {
1437         .reg_bits       = 32,
1438         .reg_stride     = 4,
1439         .val_bits       = 32,
1440         .max_register   = SUN8I_A23_CODEC_ADC_RXCNT,
1441 };
1442 
1443 static const struct regmap_config sun8i_h3_codec_regmap_config = {
1444         .reg_bits       = 32,
1445         .reg_stride     = 4,
1446         .val_bits       = 32,
1447         .max_register   = SUN8I_H3_CODEC_ADC_DBG,
1448 };
1449 
1450 static const struct regmap_config sun8i_v3s_codec_regmap_config = {
1451         .reg_bits       = 32,
1452         .reg_stride     = 4,
1453         .val_bits       = 32,
1454         .max_register   = SUN8I_H3_CODEC_ADC_DBG,
1455 };
1456 
1457 struct sun4i_codec_quirks {
1458         const struct regmap_config *regmap_config;
1459         const struct snd_soc_component_driver *codec;
1460         struct snd_soc_card * (*create_card)(struct device *dev);
1461         struct reg_field reg_adc_fifoc; /* used for regmap_field */
1462         unsigned int reg_dac_txdata;    /* TX FIFO offset for DMA config */
1463         unsigned int reg_adc_rxdata;    /* RX FIFO offset for DMA config */
1464         bool has_reset;
1465 };
1466 
1467 static const struct sun4i_codec_quirks sun4i_codec_quirks = {
1468         .regmap_config  = &sun4i_codec_regmap_config,
1469         .codec          = &sun4i_codec_codec,
1470         .create_card    = sun4i_codec_create_card,
1471         .reg_adc_fifoc  = REG_FIELD(SUN4I_CODEC_ADC_FIFOC, 0, 31),
1472         .reg_dac_txdata = SUN4I_CODEC_DAC_TXDATA,
1473         .reg_adc_rxdata = SUN4I_CODEC_ADC_RXDATA,
1474 };
1475 
1476 static const struct sun4i_codec_quirks sun6i_a31_codec_quirks = {
1477         .regmap_config  = &sun6i_codec_regmap_config,
1478         .codec          = &sun6i_codec_codec,
1479         .create_card    = sun6i_codec_create_card,
1480         .reg_adc_fifoc  = REG_FIELD(SUN6I_CODEC_ADC_FIFOC, 0, 31),
1481         .reg_dac_txdata = SUN4I_CODEC_DAC_TXDATA,
1482         .reg_adc_rxdata = SUN6I_CODEC_ADC_RXDATA,
1483         .has_reset      = true,
1484 };
1485 
1486 static const struct sun4i_codec_quirks sun7i_codec_quirks = {
1487         .regmap_config  = &sun7i_codec_regmap_config,
1488         .codec          = &sun4i_codec_codec,
1489         .create_card    = sun4i_codec_create_card,
1490         .reg_adc_fifoc  = REG_FIELD(SUN4I_CODEC_ADC_FIFOC, 0, 31),
1491         .reg_dac_txdata = SUN4I_CODEC_DAC_TXDATA,
1492         .reg_adc_rxdata = SUN4I_CODEC_ADC_RXDATA,
1493 };
1494 
1495 static const struct sun4i_codec_quirks sun8i_a23_codec_quirks = {
1496         .regmap_config  = &sun8i_a23_codec_regmap_config,
1497         .codec          = &sun8i_a23_codec_codec,
1498         .create_card    = sun8i_a23_codec_create_card,
1499         .reg_adc_fifoc  = REG_FIELD(SUN6I_CODEC_ADC_FIFOC, 0, 31),
1500         .reg_dac_txdata = SUN4I_CODEC_DAC_TXDATA,
1501         .reg_adc_rxdata = SUN6I_CODEC_ADC_RXDATA,
1502         .has_reset      = true,
1503 };
1504 
1505 static const struct sun4i_codec_quirks sun8i_h3_codec_quirks = {
1506         .regmap_config  = &sun8i_h3_codec_regmap_config,
1507         /*
1508          * TODO Share the codec structure with A23 for now.
1509          * This should be split out when adding digital audio
1510          * processing support for the H3.
1511          */
1512         .codec          = &sun8i_a23_codec_codec,
1513         .create_card    = sun8i_h3_codec_create_card,
1514         .reg_adc_fifoc  = REG_FIELD(SUN6I_CODEC_ADC_FIFOC, 0, 31),
1515         .reg_dac_txdata = SUN8I_H3_CODEC_DAC_TXDATA,
1516         .reg_adc_rxdata = SUN6I_CODEC_ADC_RXDATA,
1517         .has_reset      = true,
1518 };
1519 
1520 static const struct sun4i_codec_quirks sun8i_v3s_codec_quirks = {
1521         .regmap_config  = &sun8i_v3s_codec_regmap_config,
1522         /*
1523          * TODO The codec structure should be split out, like
1524          * H3, when adding digital audio processing support.
1525          */
1526         .codec          = &sun8i_a23_codec_codec,
1527         .create_card    = sun8i_v3s_codec_create_card,
1528         .reg_adc_fifoc  = REG_FIELD(SUN6I_CODEC_ADC_FIFOC, 0, 31),
1529         .reg_dac_txdata = SUN8I_H3_CODEC_DAC_TXDATA,
1530         .reg_adc_rxdata = SUN6I_CODEC_ADC_RXDATA,
1531         .has_reset      = true,
1532 };
1533 
1534 static const struct of_device_id sun4i_codec_of_match[] = {
1535         {
1536                 .compatible = "allwinner,sun4i-a10-codec",
1537                 .data = &sun4i_codec_quirks,
1538         },
1539         {
1540                 .compatible = "allwinner,sun6i-a31-codec",
1541                 .data = &sun6i_a31_codec_quirks,
1542         },
1543         {
1544                 .compatible = "allwinner,sun7i-a20-codec",
1545                 .data = &sun7i_codec_quirks,
1546         },
1547         {
1548                 .compatible = "allwinner,sun8i-a23-codec",
1549                 .data = &sun8i_a23_codec_quirks,
1550         },
1551         {
1552                 .compatible = "allwinner,sun8i-h3-codec",
1553                 .data = &sun8i_h3_codec_quirks,
1554         },
1555         {
1556                 .compatible = "allwinner,sun8i-v3s-codec",
1557                 .data = &sun8i_v3s_codec_quirks,
1558         },
1559         {}
1560 };
1561 MODULE_DEVICE_TABLE(of, sun4i_codec_of_match);
1562 
1563 static int sun4i_codec_probe(struct platform_device *pdev)
1564 {
1565         struct snd_soc_card *card;
1566         struct sun4i_codec *scodec;
1567         const struct sun4i_codec_quirks *quirks;
1568         struct resource *res;
1569         void __iomem *base;
1570         int ret;
1571 
1572         scodec = devm_kzalloc(&pdev->dev, sizeof(*scodec), GFP_KERNEL);
1573         if (!scodec)
1574                 return -ENOMEM;
1575 
1576         scodec->dev = &pdev->dev;
1577 
1578         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1579         base = devm_ioremap_resource(&pdev->dev, res);
1580         if (IS_ERR(base)) {
1581                 dev_err(&pdev->dev, "Failed to map the registers\n");
1582                 return PTR_ERR(base);
1583         }
1584 
1585         quirks = of_device_get_match_data(&pdev->dev);
1586         if (quirks == NULL) {
1587                 dev_err(&pdev->dev, "Failed to determine the quirks to use\n");
1588                 return -ENODEV;
1589         }
1590 
1591         scodec->regmap = devm_regmap_init_mmio(&pdev->dev, base,
1592                                                quirks->regmap_config);
1593         if (IS_ERR(scodec->regmap)) {
1594                 dev_err(&pdev->dev, "Failed to create our regmap\n");
1595                 return PTR_ERR(scodec->regmap);
1596         }
1597 
1598         /* Get the clocks from the DT */
1599         scodec->clk_apb = devm_clk_get(&pdev->dev, "apb");
1600         if (IS_ERR(scodec->clk_apb)) {
1601                 dev_err(&pdev->dev, "Failed to get the APB clock\n");
1602                 return PTR_ERR(scodec->clk_apb);
1603         }
1604 
1605         scodec->clk_module = devm_clk_get(&pdev->dev, "codec");
1606         if (IS_ERR(scodec->clk_module)) {
1607                 dev_err(&pdev->dev, "Failed to get the module clock\n");
1608                 return PTR_ERR(scodec->clk_module);
1609         }
1610 
1611         if (quirks->has_reset) {
1612                 scodec->rst = devm_reset_control_get_exclusive(&pdev->dev,
1613                                                                NULL);
1614                 if (IS_ERR(scodec->rst)) {
1615                         dev_err(&pdev->dev, "Failed to get reset control\n");
1616                         return PTR_ERR(scodec->rst);
1617                 }
1618         }
1619 
1620         scodec->gpio_pa = devm_gpiod_get_optional(&pdev->dev, "allwinner,pa",
1621                                                   GPIOD_OUT_LOW);
1622         if (IS_ERR(scodec->gpio_pa)) {
1623                 ret = PTR_ERR(scodec->gpio_pa);
1624                 if (ret != -EPROBE_DEFER)
1625                         dev_err(&pdev->dev, "Failed to get pa gpio: %d\n", ret);
1626                 return ret;
1627         }
1628 
1629         /* reg_field setup */
1630         scodec->reg_adc_fifoc = devm_regmap_field_alloc(&pdev->dev,
1631                                                         scodec->regmap,
1632                                                         quirks->reg_adc_fifoc);
1633         if (IS_ERR(scodec->reg_adc_fifoc)) {
1634                 ret = PTR_ERR(scodec->reg_adc_fifoc);
1635                 dev_err(&pdev->dev, "Failed to create regmap fields: %d\n",
1636                         ret);
1637                 return ret;
1638         }
1639 
1640         /* Enable the bus clock */
1641         if (clk_prepare_enable(scodec->clk_apb)) {
1642                 dev_err(&pdev->dev, "Failed to enable the APB clock\n");
1643                 return -EINVAL;
1644         }
1645 
1646         /* Deassert the reset control */
1647         if (scodec->rst) {
1648                 ret = reset_control_deassert(scodec->rst);
1649                 if (ret) {
1650                         dev_err(&pdev->dev,
1651                                 "Failed to deassert the reset control\n");
1652                         goto err_clk_disable;
1653                 }
1654         }
1655 
1656         /* DMA configuration for TX FIFO */
1657         scodec->playback_dma_data.addr = res->start + quirks->reg_dac_txdata;
1658         scodec->playback_dma_data.maxburst = 8;
1659         scodec->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
1660 
1661         /* DMA configuration for RX FIFO */
1662         scodec->capture_dma_data.addr = res->start + quirks->reg_adc_rxdata;
1663         scodec->capture_dma_data.maxburst = 8;
1664         scodec->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
1665 
1666         ret = devm_snd_soc_register_component(&pdev->dev, quirks->codec,
1667                                      &sun4i_codec_dai, 1);
1668         if (ret) {
1669                 dev_err(&pdev->dev, "Failed to register our codec\n");
1670                 goto err_assert_reset;
1671         }
1672 
1673         ret = devm_snd_soc_register_component(&pdev->dev,
1674                                               &sun4i_codec_component,
1675                                               &dummy_cpu_dai, 1);
1676         if (ret) {
1677                 dev_err(&pdev->dev, "Failed to register our DAI\n");
1678                 goto err_assert_reset;
1679         }
1680 
1681         ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
1682         if (ret) {
1683                 dev_err(&pdev->dev, "Failed to register against DMAEngine\n");
1684                 goto err_assert_reset;
1685         }
1686 
1687         card = quirks->create_card(&pdev->dev);
1688         if (IS_ERR(card)) {
1689                 ret = PTR_ERR(card);
1690                 dev_err(&pdev->dev, "Failed to create our card\n");
1691                 goto err_assert_reset;
1692         }
1693 
1694         snd_soc_card_set_drvdata(card, scodec);
1695 
1696         ret = snd_soc_register_card(card);
1697         if (ret) {
1698                 dev_err(&pdev->dev, "Failed to register our card\n");
1699                 goto err_assert_reset;
1700         }
1701 
1702         return 0;
1703 
1704 err_assert_reset:
1705         if (scodec->rst)
1706                 reset_control_assert(scodec->rst);
1707 err_clk_disable:
1708         clk_disable_unprepare(scodec->clk_apb);
1709         return ret;
1710 }
1711 
1712 static int sun4i_codec_remove(struct platform_device *pdev)
1713 {
1714         struct snd_soc_card *card = platform_get_drvdata(pdev);
1715         struct sun4i_codec *scodec = snd_soc_card_get_drvdata(card);
1716 
1717         snd_soc_unregister_card(card);
1718         if (scodec->rst)
1719                 reset_control_assert(scodec->rst);
1720         clk_disable_unprepare(scodec->clk_apb);
1721 
1722         return 0;
1723 }
1724 
1725 static struct platform_driver sun4i_codec_driver = {
1726         .driver = {
1727                 .name = "sun4i-codec",
1728                 .of_match_table = sun4i_codec_of_match,
1729         },
1730         .probe = sun4i_codec_probe,
1731         .remove = sun4i_codec_remove,
1732 };
1733 module_platform_driver(sun4i_codec_driver);
1734 
1735 MODULE_DESCRIPTION("Allwinner A10 codec driver");
1736 MODULE_AUTHOR("Emilio López <emilio@elopez.com.ar>");
1737 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
1738 MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
1739 MODULE_AUTHOR("Chen-Yu Tsai <wens@csie.org>");
1740 MODULE_LICENSE("GPL");
1741 

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