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TOMOYO Linux Cross Reference
Linux/sound/pci/ice1712/maya44.c

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  1 /*
  2  *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
  3  *
  4  *   Lowlevel functions for ESI Maya44 cards
  5  *
  6  *      Copyright (c) 2009 Takashi Iwai <tiwai@suse.de>
  7  *      Based on the patches by Rainer Zimmermann <mail@lightshed.de>
  8  *
  9  *   This program is free software; you can redistribute it and/or modify
 10  *   it under the terms of the GNU General Public License as published by
 11  *   the Free Software Foundation; either version 2 of the License, or
 12  *   (at your option) any later version.
 13  *
 14  *   This program is distributed in the hope that it will be useful,
 15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17  *   GNU General Public License for more details.
 18  *
 19  *   You should have received a copy of the GNU General Public License
 20  *   along with this program; if not, write to the Free Software
 21  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 22  *
 23  */
 24 
 25 #include <linux/init.h>
 26 #include <linux/slab.h>
 27 #include <linux/io.h>
 28 #include <sound/core.h>
 29 #include <sound/control.h>
 30 #include <sound/pcm.h>
 31 #include <sound/tlv.h>
 32 
 33 #include "ice1712.h"
 34 #include "envy24ht.h"
 35 #include "maya44.h"
 36 
 37 /* WM8776 register indexes */
 38 #define WM8776_REG_HEADPHONE_L          0x00
 39 #define WM8776_REG_HEADPHONE_R          0x01
 40 #define WM8776_REG_HEADPHONE_MASTER     0x02
 41 #define WM8776_REG_DAC_ATTEN_L          0x03
 42 #define WM8776_REG_DAC_ATTEN_R          0x04
 43 #define WM8776_REG_DAC_ATTEN_MASTER     0x05
 44 #define WM8776_REG_DAC_PHASE            0x06
 45 #define WM8776_REG_DAC_CONTROL          0x07
 46 #define WM8776_REG_DAC_MUTE             0x08
 47 #define WM8776_REG_DAC_DEEMPH           0x09
 48 #define WM8776_REG_DAC_IF_CONTROL       0x0a
 49 #define WM8776_REG_ADC_IF_CONTROL       0x0b
 50 #define WM8776_REG_MASTER_MODE_CONTROL  0x0c
 51 #define WM8776_REG_POWERDOWN            0x0d
 52 #define WM8776_REG_ADC_ATTEN_L          0x0e
 53 #define WM8776_REG_ADC_ATTEN_R          0x0f
 54 #define WM8776_REG_ADC_ALC1             0x10
 55 #define WM8776_REG_ADC_ALC2             0x11
 56 #define WM8776_REG_ADC_ALC3             0x12
 57 #define WM8776_REG_ADC_NOISE_GATE       0x13
 58 #define WM8776_REG_ADC_LIMITER          0x14
 59 #define WM8776_REG_ADC_MUX              0x15
 60 #define WM8776_REG_OUTPUT_MUX           0x16
 61 #define WM8776_REG_RESET                0x17
 62 
 63 #define WM8776_NUM_REGS                 0x18
 64 
 65 /* clock ratio identifiers for snd_wm8776_set_rate() */
 66 #define WM8776_CLOCK_RATIO_128FS        0
 67 #define WM8776_CLOCK_RATIO_192FS        1
 68 #define WM8776_CLOCK_RATIO_256FS        2
 69 #define WM8776_CLOCK_RATIO_384FS        3
 70 #define WM8776_CLOCK_RATIO_512FS        4
 71 #define WM8776_CLOCK_RATIO_768FS        5
 72 
 73 enum { WM_VOL_HP, WM_VOL_DAC, WM_VOL_ADC, WM_NUM_VOLS };
 74 enum { WM_SW_DAC, WM_SW_BYPASS, WM_NUM_SWITCHES };
 75 
 76 struct snd_wm8776 {
 77         unsigned char addr;
 78         unsigned short regs[WM8776_NUM_REGS];
 79         unsigned char volumes[WM_NUM_VOLS][2];
 80         unsigned int switch_bits;
 81 };
 82 
 83 struct snd_maya44 {
 84         struct snd_ice1712 *ice;
 85         struct snd_wm8776 wm[2];
 86         struct mutex mutex;
 87 };
 88 
 89 
 90 /* write the given register and save the data to the cache */
 91 static void wm8776_write(struct snd_ice1712 *ice, struct snd_wm8776 *wm,
 92                          unsigned char reg, unsigned short val)
 93 {
 94         /*
 95          * WM8776 registers are up to 9 bits wide, bit 8 is placed in the LSB
 96          * of the address field
 97          */
 98         snd_vt1724_write_i2c(ice, wm->addr,
 99                              (reg << 1) | ((val >> 8) & 1),
100                              val & 0xff);
101         wm->regs[reg] = val;
102 }
103 
104 /*
105  * update the given register with and/or mask and save the data to the cache
106  */
107 static int wm8776_write_bits(struct snd_ice1712 *ice, struct snd_wm8776 *wm,
108                              unsigned char reg,
109                              unsigned short mask, unsigned short val)
110 {
111         val |= wm->regs[reg] & ~mask;
112         if (val != wm->regs[reg]) {
113                 wm8776_write(ice, wm, reg, val);
114                 return 1;
115         }
116         return 0;
117 }
118 
119 
120 /*
121  * WM8776 volume controls
122  */
123 
124 struct maya_vol_info {
125         unsigned int maxval;            /* volume range: 0..maxval */
126         unsigned char regs[2];          /* left and right registers */
127         unsigned short mask;            /* value mask */
128         unsigned short offset;          /* zero-value offset */
129         unsigned short mute;            /* mute bit */
130         unsigned short update;          /* update bits */
131         unsigned char mux_bits[2];      /* extra bits for ADC mute */
132 };
133 
134 static struct maya_vol_info vol_info[WM_NUM_VOLS] = {
135         [WM_VOL_HP] = {
136                 .maxval = 80,
137                 .regs = { WM8776_REG_HEADPHONE_L, WM8776_REG_HEADPHONE_R },
138                 .mask = 0x7f,
139                 .offset = 0x30,
140                 .mute = 0x00,
141                 .update = 0x180,        /* update and zero-cross enable */
142         },
143         [WM_VOL_DAC] = {
144                 .maxval = 255,
145                 .regs = { WM8776_REG_DAC_ATTEN_L, WM8776_REG_DAC_ATTEN_R },
146                 .mask = 0xff,
147                 .offset = 0x01,
148                 .mute = 0x00,
149                 .update = 0x100,        /* zero-cross enable */
150         },
151         [WM_VOL_ADC] = {
152                 .maxval = 91,
153                 .regs = { WM8776_REG_ADC_ATTEN_L, WM8776_REG_ADC_ATTEN_R },
154                 .mask = 0xff,
155                 .offset = 0xa5,
156                 .mute = 0xa5,
157                 .update = 0x100,        /* update */
158                 .mux_bits = { 0x80, 0x40 }, /* ADCMUX bits */
159         },
160 };
161 
162 /*
163  * dB tables
164  */
165 /* headphone output: mute, -73..+6db (1db step) */
166 static const DECLARE_TLV_DB_SCALE(db_scale_hp, -7400, 100, 1);
167 /* DAC output: mute, -127..0db (0.5db step) */
168 static const DECLARE_TLV_DB_SCALE(db_scale_dac, -12750, 50, 1);
169 /* ADC gain: mute, -21..+24db (0.5db step) */
170 static const DECLARE_TLV_DB_SCALE(db_scale_adc, -2100, 50, 1);
171 
172 static int maya_vol_info(struct snd_kcontrol *kcontrol,
173                          struct snd_ctl_elem_info *uinfo)
174 {
175         unsigned int idx = kcontrol->private_value;
176         struct maya_vol_info *vol = &vol_info[idx];
177 
178         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
179         uinfo->count = 2;
180         uinfo->value.integer.min = 0;
181         uinfo->value.integer.max = vol->maxval;
182         return 0;
183 }
184 
185 static int maya_vol_get(struct snd_kcontrol *kcontrol,
186                         struct snd_ctl_elem_value *ucontrol)
187 {
188         struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
189         struct snd_wm8776 *wm =
190                 &chip->wm[snd_ctl_get_ioff(kcontrol, &ucontrol->id)];
191         unsigned int idx = kcontrol->private_value;
192 
193         mutex_lock(&chip->mutex);
194         ucontrol->value.integer.value[0] = wm->volumes[idx][0];
195         ucontrol->value.integer.value[1] = wm->volumes[idx][1];
196         mutex_unlock(&chip->mutex);
197         return 0;
198 }
199 
200 static int maya_vol_put(struct snd_kcontrol *kcontrol,
201                         struct snd_ctl_elem_value *ucontrol)
202 {
203         struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
204         struct snd_wm8776 *wm =
205                 &chip->wm[snd_ctl_get_ioff(kcontrol, &ucontrol->id)];
206         unsigned int idx = kcontrol->private_value;
207         struct maya_vol_info *vol = &vol_info[idx];
208         unsigned int val, data;
209         int ch, changed = 0;
210 
211         mutex_lock(&chip->mutex);
212         for (ch = 0; ch < 2; ch++) {
213                 val = ucontrol->value.integer.value[ch];
214                 if (val > vol->maxval)
215                         val = vol->maxval;
216                 if (val == wm->volumes[idx][ch])
217                         continue;
218                 if (!val)
219                         data = vol->mute;
220                 else
221                         data = (val - 1) + vol->offset;
222                 data |= vol->update;
223                 changed |= wm8776_write_bits(chip->ice, wm, vol->regs[ch],
224                                              vol->mask | vol->update, data);
225                 if (vol->mux_bits[ch])
226                         wm8776_write_bits(chip->ice, wm, WM8776_REG_ADC_MUX,
227                                           vol->mux_bits[ch],
228                                           val ? 0 : vol->mux_bits[ch]);
229                 wm->volumes[idx][ch] = val;
230         }
231         mutex_unlock(&chip->mutex);
232         return changed;
233 }
234 
235 /*
236  * WM8776 switch controls
237  */
238 
239 #define COMPOSE_SW_VAL(idx, reg, mask)  ((idx) | ((reg) << 8) | ((mask) << 16))
240 #define GET_SW_VAL_IDX(val)     ((val) & 0xff)
241 #define GET_SW_VAL_REG(val)     (((val) >> 8) & 0xff)
242 #define GET_SW_VAL_MASK(val)    (((val) >> 16) & 0xff)
243 
244 #define maya_sw_info    snd_ctl_boolean_mono_info
245 
246 static int maya_sw_get(struct snd_kcontrol *kcontrol,
247                        struct snd_ctl_elem_value *ucontrol)
248 {
249         struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
250         struct snd_wm8776 *wm =
251                 &chip->wm[snd_ctl_get_ioff(kcontrol, &ucontrol->id)];
252         unsigned int idx = GET_SW_VAL_IDX(kcontrol->private_value);
253 
254         ucontrol->value.integer.value[0] = (wm->switch_bits >> idx) & 1;
255         return 0;
256 }
257 
258 static int maya_sw_put(struct snd_kcontrol *kcontrol,
259                        struct snd_ctl_elem_value *ucontrol)
260 {
261         struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
262         struct snd_wm8776 *wm =
263                 &chip->wm[snd_ctl_get_ioff(kcontrol, &ucontrol->id)];
264         unsigned int idx = GET_SW_VAL_IDX(kcontrol->private_value);
265         unsigned int mask, val;
266         int changed;
267 
268         mutex_lock(&chip->mutex);
269         mask = 1 << idx;
270         wm->switch_bits &= ~mask;
271         val = ucontrol->value.integer.value[0];
272         if (val)
273                 wm->switch_bits |= mask;
274         mask = GET_SW_VAL_MASK(kcontrol->private_value);
275         changed = wm8776_write_bits(chip->ice, wm,
276                                     GET_SW_VAL_REG(kcontrol->private_value),
277                                     mask, val ? mask : 0);
278         mutex_unlock(&chip->mutex);
279         return changed;
280 }
281 
282 /*
283  * GPIO pins (known ones for maya44)
284  */
285 #define GPIO_PHANTOM_OFF        2
286 #define GPIO_MIC_RELAY          4
287 #define GPIO_SPDIF_IN_INV       5
288 #define GPIO_MUST_BE_0          7
289 
290 /*
291  * GPIO switch controls
292  */
293 
294 #define COMPOSE_GPIO_VAL(shift, inv)    ((shift) | ((inv) << 8))
295 #define GET_GPIO_VAL_SHIFT(val)         ((val) & 0xff)
296 #define GET_GPIO_VAL_INV(val)           (((val) >> 8) & 1)
297 
298 static int maya_set_gpio_bits(struct snd_ice1712 *ice, unsigned int mask,
299                               unsigned int bits)
300 {
301         unsigned int data;
302         data = snd_ice1712_gpio_read(ice);
303         if ((data & mask) == bits)
304                 return 0;
305         snd_ice1712_gpio_write(ice, (data & ~mask) | bits);
306         return 1;
307 }
308 
309 #define maya_gpio_sw_info       snd_ctl_boolean_mono_info
310 
311 static int maya_gpio_sw_get(struct snd_kcontrol *kcontrol,
312                             struct snd_ctl_elem_value *ucontrol)
313 {
314         struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
315         unsigned int shift = GET_GPIO_VAL_SHIFT(kcontrol->private_value);
316         unsigned int val;
317 
318         val = (snd_ice1712_gpio_read(chip->ice) >> shift) & 1;
319         if (GET_GPIO_VAL_INV(kcontrol->private_value))
320                 val = !val;
321         ucontrol->value.integer.value[0] = val;
322         return 0;
323 }
324 
325 static int maya_gpio_sw_put(struct snd_kcontrol *kcontrol,
326                             struct snd_ctl_elem_value *ucontrol)
327 {
328         struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
329         unsigned int shift = GET_GPIO_VAL_SHIFT(kcontrol->private_value);
330         unsigned int val, mask;
331         int changed;
332 
333         mutex_lock(&chip->mutex);
334         mask = 1 << shift;
335         val = ucontrol->value.integer.value[0];
336         if (GET_GPIO_VAL_INV(kcontrol->private_value))
337                 val = !val;
338         val = val ? mask : 0;
339         changed = maya_set_gpio_bits(chip->ice, mask, val);
340         mutex_unlock(&chip->mutex);
341         return changed;
342 }
343 
344 /*
345  * capture source selection
346  */
347 
348 /* known working input slots (0-4) */
349 #define MAYA_LINE_IN    1       /* in-2 */
350 #define MAYA_MIC_IN     3       /* in-4 */
351 
352 static void wm8776_select_input(struct snd_maya44 *chip, int idx, int line)
353 {
354         wm8776_write_bits(chip->ice, &chip->wm[idx], WM8776_REG_ADC_MUX,
355                           0x1f, 1 << line);
356 }
357 
358 static int maya_rec_src_info(struct snd_kcontrol *kcontrol,
359                              struct snd_ctl_elem_info *uinfo)
360 {
361         static char *texts[] = { "Line", "Mic" };
362 
363         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
364         uinfo->count = 1;
365         uinfo->value.enumerated.items = ARRAY_SIZE(texts);
366         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
367                 uinfo->value.enumerated.item =
368                         uinfo->value.enumerated.items - 1;
369         strcpy(uinfo->value.enumerated.name,
370                texts[uinfo->value.enumerated.item]);
371         return 0;
372 }
373 
374 static int maya_rec_src_get(struct snd_kcontrol *kcontrol,
375                             struct snd_ctl_elem_value *ucontrol)
376 {
377         struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
378         int sel;
379 
380         if (snd_ice1712_gpio_read(chip->ice) & (1 << GPIO_MIC_RELAY))
381                 sel = 1;
382         else
383                 sel = 0;
384         ucontrol->value.enumerated.item[0] = sel;
385         return 0;
386 }
387 
388 static int maya_rec_src_put(struct snd_kcontrol *kcontrol,
389                             struct snd_ctl_elem_value *ucontrol)
390 {
391         struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
392         int sel = ucontrol->value.enumerated.item[0];
393         int changed;
394 
395         mutex_lock(&chip->mutex);
396         changed = maya_set_gpio_bits(chip->ice, 1 << GPIO_MIC_RELAY,
397                                      sel ? (1 << GPIO_MIC_RELAY) : 0);
398         wm8776_select_input(chip, 0, sel ? MAYA_MIC_IN : MAYA_LINE_IN);
399         mutex_unlock(&chip->mutex);
400         return changed;
401 }
402 
403 /*
404  * Maya44 routing switch settings have different meanings than the standard
405  * ice1724 switches as defined in snd_vt1724_pro_route_info (ice1724.c).
406  */
407 static int maya_pb_route_info(struct snd_kcontrol *kcontrol,
408                               struct snd_ctl_elem_info *uinfo)
409 {
410         static char *texts[] = {
411                 "PCM Out", /* 0 */
412                 "Input 1", "Input 2", "Input 3", "Input 4"
413         };
414 
415         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
416         uinfo->count = 1;
417         uinfo->value.enumerated.items = ARRAY_SIZE(texts);
418         if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
419                 uinfo->value.enumerated.item =
420                         uinfo->value.enumerated.items - 1;
421         strcpy(uinfo->value.enumerated.name,
422                texts[uinfo->value.enumerated.item]);
423         return 0;
424 }
425 
426 static int maya_pb_route_shift(int idx)
427 {
428         static const unsigned char shift[10] =
429                 { 8, 20, 0, 3, 11, 23, 14, 26, 17, 29 };
430         return shift[idx % 10];
431 }
432 
433 static int maya_pb_route_get(struct snd_kcontrol *kcontrol,
434                              struct snd_ctl_elem_value *ucontrol)
435 {
436         struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
437         int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
438         ucontrol->value.enumerated.item[0] =
439                 snd_ice1724_get_route_val(chip->ice, maya_pb_route_shift(idx));
440         return 0;
441 }
442 
443 static int maya_pb_route_put(struct snd_kcontrol *kcontrol,
444                              struct snd_ctl_elem_value *ucontrol)
445 {
446         struct snd_maya44 *chip = snd_kcontrol_chip(kcontrol);
447         int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
448         return snd_ice1724_put_route_val(chip->ice,
449                                          ucontrol->value.enumerated.item[0],
450                                          maya_pb_route_shift(idx));
451 }
452 
453 
454 /*
455  * controls to be added
456  */
457 
458 static struct snd_kcontrol_new maya_controls[] __devinitdata = {
459         {
460                 .name = "Crossmix Playback Volume",
461                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
462                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
463                         SNDRV_CTL_ELEM_ACCESS_TLV_READ,
464                 .info = maya_vol_info,
465                 .get = maya_vol_get,
466                 .put = maya_vol_put,
467                 .tlv = { .p = db_scale_hp },
468                 .private_value = WM_VOL_HP,
469                 .count = 2,
470         },
471         {
472                 .name = "PCM Playback Volume",
473                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
474                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
475                         SNDRV_CTL_ELEM_ACCESS_TLV_READ,
476                 .info = maya_vol_info,
477                 .get = maya_vol_get,
478                 .put = maya_vol_put,
479                 .tlv = { .p = db_scale_dac },
480                 .private_value = WM_VOL_DAC,
481                 .count = 2,
482         },
483         {
484                 .name = "Line Capture Volume",
485                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
486                 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
487                         SNDRV_CTL_ELEM_ACCESS_TLV_READ,
488                 .info = maya_vol_info,
489                 .get = maya_vol_get,
490                 .put = maya_vol_put,
491                 .tlv = { .p = db_scale_adc },
492                 .private_value = WM_VOL_ADC,
493                 .count = 2,
494         },
495         {
496                 .name = "PCM Playback Switch",
497                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
498                 .info = maya_sw_info,
499                 .get = maya_sw_get,
500                 .put = maya_sw_put,
501                 .private_value = COMPOSE_SW_VAL(WM_SW_DAC,
502                                                 WM8776_REG_OUTPUT_MUX, 0x01),
503                 .count = 2,
504         },
505         {
506                 .name = "Bypass Playback Switch",
507                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
508                 .info = maya_sw_info,
509                 .get = maya_sw_get,
510                 .put = maya_sw_put,
511                 .private_value = COMPOSE_SW_VAL(WM_SW_BYPASS,
512                                                 WM8776_REG_OUTPUT_MUX, 0x04),
513                 .count = 2,
514         },
515         {
516                 .name = "Capture Source",
517                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
518                 .info = maya_rec_src_info,
519                 .get = maya_rec_src_get,
520                 .put = maya_rec_src_put,
521         },
522         {
523                 .name = "Mic Phantom Power Switch",
524                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
525                 .info = maya_gpio_sw_info,
526                 .get = maya_gpio_sw_get,
527                 .put = maya_gpio_sw_put,
528                 .private_value = COMPOSE_GPIO_VAL(GPIO_PHANTOM_OFF, 1),
529         },
530         {
531                 .name = "SPDIF Capture Switch",
532                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
533                 .info = maya_gpio_sw_info,
534                 .get = maya_gpio_sw_get,
535                 .put = maya_gpio_sw_put,
536                 .private_value = COMPOSE_GPIO_VAL(GPIO_SPDIF_IN_INV, 1),
537         },
538         {
539                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
540                 .name = "H/W Playback Route",
541                 .info = maya_pb_route_info,
542                 .get = maya_pb_route_get,
543                 .put = maya_pb_route_put,
544                 .count = 4,  /* FIXME: do controls 5-9 have any meaning? */
545         },
546 };
547 
548 static int __devinit maya44_add_controls(struct snd_ice1712 *ice)
549 {
550         int err, i;
551 
552         for (i = 0; i < ARRAY_SIZE(maya_controls); i++) {
553                 err = snd_ctl_add(ice->card, snd_ctl_new1(&maya_controls[i],
554                                                           ice->spec));
555                 if (err < 0)
556                         return err;
557         }
558         return 0;
559 }
560 
561 
562 /*
563  * initialize a wm8776 chip
564  */
565 static void __devinit wm8776_init(struct snd_ice1712 *ice,
566                                   struct snd_wm8776 *wm, unsigned int addr)
567 {
568         static const unsigned short inits_wm8776[] = {
569                 0x02, 0x100, /* R2: headphone L+R muted + update */
570                 0x05, 0x100, /* R5: DAC output L+R muted + update */
571                 0x06, 0x000, /* R6: DAC output phase normal */
572                 0x07, 0x091, /* R7: DAC enable zero cross detection,
573                                 normal output */
574                 0x08, 0x000, /* R8: DAC soft mute off */
575                 0x09, 0x000, /* R9: no deemph, DAC zero detect disabled */
576                 0x0a, 0x022, /* R10: DAC I2C mode, std polarities, 24bit */
577                 0x0b, 0x022, /* R11: ADC I2C mode, std polarities, 24bit,
578                                 highpass filter enabled */
579                 0x0c, 0x042, /* R12: ADC+DAC slave, ADC+DAC 44,1kHz */
580                 0x0d, 0x000, /* R13: all power up */
581                 0x0e, 0x100, /* R14: ADC left muted,
582                                 enable zero cross detection */
583                 0x0f, 0x100, /* R15: ADC right muted,
584                                 enable zero cross detection */
585                              /* R16: ALC...*/
586                 0x11, 0x000, /* R17: disable ALC */
587                              /* R18: ALC...*/
588                              /* R19: noise gate...*/
589                 0x15, 0x000, /* R21: ADC input mux init, mute all inputs */
590                 0x16, 0x001, /* R22: output mux, select DAC */
591                 0xff, 0xff
592         };
593 
594         const unsigned short *ptr;
595         unsigned char reg;
596         unsigned short data;
597 
598         wm->addr = addr;
599         /* enable DAC output; mute bypass, aux & all inputs */
600         wm->switch_bits = (1 << WM_SW_DAC);
601 
602         ptr = inits_wm8776;
603         while (*ptr != 0xff) {
604                 reg = *ptr++;
605                 data = *ptr++;
606                 wm8776_write(ice, wm, reg, data);
607         }
608 }
609 
610 
611 /*
612  * change the rate on the WM8776 codecs.
613  * this assumes that the VT17xx's rate is changed by the calling function.
614  * NOTE: even though the WM8776's are running in slave mode and rate
615  * selection is automatic, we need to call snd_wm8776_set_rate() here
616  * to make sure some flags are set correctly.
617  */
618 static void set_rate(struct snd_ice1712 *ice, unsigned int rate)
619 {
620         struct snd_maya44 *chip = ice->spec;
621         unsigned int ratio, adc_ratio, val;
622         int i;
623 
624         switch (rate) {
625         case 192000:
626                 ratio = WM8776_CLOCK_RATIO_128FS;
627                 break;
628         case 176400:
629                 ratio = WM8776_CLOCK_RATIO_128FS;
630                 break;
631         case 96000:
632                 ratio = WM8776_CLOCK_RATIO_256FS;
633                 break;
634         case 88200:
635                 ratio = WM8776_CLOCK_RATIO_384FS;
636                 break;
637         case 48000:
638                 ratio = WM8776_CLOCK_RATIO_512FS;
639                 break;
640         case 44100:
641                 ratio = WM8776_CLOCK_RATIO_512FS;
642                 break;
643         case 32000:
644                 ratio = WM8776_CLOCK_RATIO_768FS;
645                 break;
646         case 0:
647                 /* no hint - S/PDIF input is master, simply return */
648                 return;
649         default:
650                 snd_BUG();
651                 return;
652         }
653 
654         /*
655          * this currently sets the same rate for ADC and DAC, but limits
656          * ADC rate to 256X (96kHz). For 256X mode (96kHz), this sets ADC
657          * oversampling to 64x, as recommended by WM8776 datasheet.
658          * Setting the rate is not really necessary in slave mode.
659          */
660         adc_ratio = ratio;
661         if (adc_ratio < WM8776_CLOCK_RATIO_256FS)
662                 adc_ratio = WM8776_CLOCK_RATIO_256FS;
663 
664         val = adc_ratio;
665         if (adc_ratio == WM8776_CLOCK_RATIO_256FS)
666                 val |= 8;
667         val |= ratio << 4;
668 
669         mutex_lock(&chip->mutex);
670         for (i = 0; i < 2; i++)
671                 wm8776_write_bits(ice, &chip->wm[i],
672                                   WM8776_REG_MASTER_MODE_CONTROL,
673                                   0x180, val);
674         mutex_unlock(&chip->mutex);
675 }
676 
677 /*
678  * supported sample rates (to override the default one)
679  */
680 
681 static unsigned int rates[] = {
682         32000, 44100, 48000, 64000, 88200, 96000, 176400, 192000
683 };
684 
685 /* playback rates: 32..192 kHz */
686 static struct snd_pcm_hw_constraint_list dac_rates = {
687         .count = ARRAY_SIZE(rates),
688         .list = rates,
689         .mask = 0
690 };
691 
692 
693 /*
694  * chip addresses on I2C bus
695  */
696 static unsigned char wm8776_addr[2] __devinitdata = {
697         0x34, 0x36, /* codec 0 & 1 */
698 };
699 
700 /*
701  * initialize the chip
702  */
703 static int __devinit maya44_init(struct snd_ice1712 *ice)
704 {
705         int i;
706         struct snd_maya44 *chip;
707 
708         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
709         if (!chip)
710                 return -ENOMEM;
711         mutex_init(&chip->mutex);
712         chip->ice = ice;
713         ice->spec = chip;
714 
715         /* initialise codecs */
716         ice->num_total_dacs = 4;
717         ice->num_total_adcs = 4;
718         ice->akm_codecs = 0;
719 
720         for (i = 0; i < 2; i++) {
721                 wm8776_init(ice, &chip->wm[i], wm8776_addr[i]);
722                 wm8776_select_input(chip, i, MAYA_LINE_IN);
723         }
724 
725         /* set card specific rates */
726         ice->hw_rates = &dac_rates;
727 
728         /* register change rate notifier */
729         ice->gpio.set_pro_rate = set_rate;
730 
731         /* RDMA1 (2nd input channel) is used for ADC by default */
732         ice->force_rdma1 = 1;
733 
734         /* have an own routing control */
735         ice->own_routing = 1;
736 
737         return 0;
738 }
739 
740 
741 /*
742  * Maya44 boards don't provide the EEPROM data except for the vendor IDs.
743  * hence the driver needs to sets up it properly.
744  */
745 
746 static unsigned char maya44_eeprom[] __devinitdata = {
747         [ICE_EEP2_SYSCONF]     = 0x45,
748                 /* clock xin1=49.152MHz, mpu401, 2 stereo ADCs+DACs */
749         [ICE_EEP2_ACLINK]      = 0x80,
750                 /* I2S */
751         [ICE_EEP2_I2S]         = 0xf8,
752                 /* vol, 96k, 24bit, 192k */
753         [ICE_EEP2_SPDIF]       = 0xc3,
754                 /* enable spdif out, spdif out supp, spdif-in, ext spdif out */
755         [ICE_EEP2_GPIO_DIR]    = 0xff,
756         [ICE_EEP2_GPIO_DIR1]   = 0xff,
757         [ICE_EEP2_GPIO_DIR2]   = 0xff,
758         [ICE_EEP2_GPIO_MASK]   = 0/*0x9f*/,
759         [ICE_EEP2_GPIO_MASK1]  = 0/*0xff*/,
760         [ICE_EEP2_GPIO_MASK2]  = 0/*0x7f*/,
761         [ICE_EEP2_GPIO_STATE]  = (1 << GPIO_PHANTOM_OFF) |
762                         (1 << GPIO_SPDIF_IN_INV),
763         [ICE_EEP2_GPIO_STATE1] = 0x00,
764         [ICE_EEP2_GPIO_STATE2] = 0x00,
765 };
766 
767 /* entry point */
768 struct snd_ice1712_card_info snd_vt1724_maya44_cards[] __devinitdata = {
769         {
770                 .subvendor = VT1724_SUBDEVICE_MAYA44,
771                 .name = "ESI Maya44",
772                 .model = "maya44",
773                 .chip_init = maya44_init,
774                 .build_controls = maya44_add_controls,
775                 .eeprom_size = sizeof(maya44_eeprom),
776                 .eeprom_data = maya44_eeprom,
777         },
778         { } /* terminator */
779 };
780 

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