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

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  1 /*
  2  *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
  3  *
  4  *   Lowlevel functions for ESI Juli@ cards
  5  *
  6  *      Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
  7  *                    2008 Pavel Hofman <dustin@seznam.cz>
  8  *
  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  *   You should have received a copy of the GNU General Public License
 21  *   along with this program; if not, write to the Free Software
 22  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 23  *
 24  */
 25 
 26 #include <linux/delay.h>
 27 #include <linux/interrupt.h>
 28 #include <linux/init.h>
 29 #include <linux/slab.h>
 30 #include <linux/string.h>
 31 #include <sound/core.h>
 32 #include <sound/tlv.h>
 33 
 34 #include "ice1712.h"
 35 #include "envy24ht.h"
 36 #include "juli.h"
 37 
 38 struct juli_spec {
 39         struct ak4114 *ak4114;
 40         unsigned int analog:1;
 41 };
 42 
 43 /*
 44  * chip addresses on I2C bus
 45  */
 46 #define AK4114_ADDR             0x20            /* S/PDIF receiver */
 47 #define AK4358_ADDR             0x22            /* DAC */
 48 
 49 /*
 50  * Juli does not use the standard ICE1724 clock scheme. Juli's ice1724 chip is
 51  * supplied by external clock provided by Xilinx array and MK73-1 PLL frequency
 52  * multiplier. Actual frequency is set by ice1724 GPIOs hooked to the Xilinx.
 53  *
 54  * The clock circuitry is supplied by the two ice1724 crystals. This
 55  * arrangement allows to generate independent clock signal for AK4114's input
 56  * rate detection circuit. As a result, Juli, unlike most other
 57  * ice1724+ak4114-based cards, detects spdif input rate correctly.
 58  * This fact is applied in the driver, allowing to modify PCM stream rate
 59  * parameter according to the actual input rate.
 60  *
 61  * Juli uses the remaining three stereo-channels of its DAC to optionally
 62  * monitor analog input, digital input, and digital output. The corresponding
 63  * I2S signals are routed by Xilinx, controlled by GPIOs.
 64  *
 65  * The master mute is implemented using output muting transistors (GPIO) in
 66  * combination with smuting the DAC.
 67  *
 68  * The card itself has no HW master volume control, implemented using the
 69  * vmaster control.
 70  *
 71  * TODO:
 72  * researching and fixing the input monitors
 73  */
 74 
 75 /*
 76  * GPIO pins
 77  */
 78 #define GPIO_FREQ_MASK          (3<<0)
 79 #define GPIO_FREQ_32KHZ         (0<<0)
 80 #define GPIO_FREQ_44KHZ         (1<<0)
 81 #define GPIO_FREQ_48KHZ         (2<<0)
 82 #define GPIO_MULTI_MASK         (3<<2)
 83 #define GPIO_MULTI_4X           (0<<2)
 84 #define GPIO_MULTI_2X           (1<<2)
 85 #define GPIO_MULTI_1X           (2<<2)          /* also external */
 86 #define GPIO_MULTI_HALF         (3<<2)
 87 #define GPIO_INTERNAL_CLOCK     (1<<4)          /* 0 = external, 1 = internal */
 88 #define GPIO_CLOCK_MASK         (1<<4)
 89 #define GPIO_ANALOG_PRESENT     (1<<5)          /* RO only: 0 = present */
 90 #define GPIO_RXMCLK_SEL         (1<<7)          /* must be 0 */
 91 #define GPIO_AK5385A_CKS0       (1<<8)
 92 #define GPIO_AK5385A_DFS1       (1<<9)
 93 #define GPIO_AK5385A_DFS0       (1<<10)
 94 #define GPIO_DIGOUT_MONITOR     (1<<11)         /* 1 = active */
 95 #define GPIO_DIGIN_MONITOR      (1<<12)         /* 1 = active */
 96 #define GPIO_ANAIN_MONITOR      (1<<13)         /* 1 = active */
 97 #define GPIO_AK5385A_CKS1       (1<<14)         /* must be 0 */
 98 #define GPIO_MUTE_CONTROL       (1<<15)         /* output mute, 1 = muted */
 99 
100 #define GPIO_RATE_MASK          (GPIO_FREQ_MASK | GPIO_MULTI_MASK | \
101                 GPIO_CLOCK_MASK)
102 #define GPIO_AK5385A_MASK       (GPIO_AK5385A_CKS0 | GPIO_AK5385A_DFS0 | \
103                 GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS1)
104 
105 #define JULI_PCM_RATE   (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
106                 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
107                 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | \
108                 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \
109                 SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
110 
111 #define GPIO_RATE_16000         (GPIO_FREQ_32KHZ | GPIO_MULTI_HALF | \
112                 GPIO_INTERNAL_CLOCK)
113 #define GPIO_RATE_22050         (GPIO_FREQ_44KHZ | GPIO_MULTI_HALF | \
114                 GPIO_INTERNAL_CLOCK)
115 #define GPIO_RATE_24000         (GPIO_FREQ_48KHZ | GPIO_MULTI_HALF | \
116                 GPIO_INTERNAL_CLOCK)
117 #define GPIO_RATE_32000         (GPIO_FREQ_32KHZ | GPIO_MULTI_1X | \
118                 GPIO_INTERNAL_CLOCK)
119 #define GPIO_RATE_44100         (GPIO_FREQ_44KHZ | GPIO_MULTI_1X | \
120                 GPIO_INTERNAL_CLOCK)
121 #define GPIO_RATE_48000         (GPIO_FREQ_48KHZ | GPIO_MULTI_1X | \
122                 GPIO_INTERNAL_CLOCK)
123 #define GPIO_RATE_64000         (GPIO_FREQ_32KHZ | GPIO_MULTI_2X | \
124                 GPIO_INTERNAL_CLOCK)
125 #define GPIO_RATE_88200         (GPIO_FREQ_44KHZ | GPIO_MULTI_2X | \
126                 GPIO_INTERNAL_CLOCK)
127 #define GPIO_RATE_96000         (GPIO_FREQ_48KHZ | GPIO_MULTI_2X | \
128                 GPIO_INTERNAL_CLOCK)
129 #define GPIO_RATE_176400        (GPIO_FREQ_44KHZ | GPIO_MULTI_4X | \
130                 GPIO_INTERNAL_CLOCK)
131 #define GPIO_RATE_192000        (GPIO_FREQ_48KHZ | GPIO_MULTI_4X | \
132                 GPIO_INTERNAL_CLOCK)
133 
134 /*
135  * Initial setup of the conversion array GPIO <-> rate
136  */
137 static const unsigned int juli_rates[] = {
138         16000, 22050, 24000, 32000,
139         44100, 48000, 64000, 88200,
140         96000, 176400, 192000,
141 };
142 
143 static const unsigned int gpio_vals[] = {
144         GPIO_RATE_16000, GPIO_RATE_22050, GPIO_RATE_24000, GPIO_RATE_32000,
145         GPIO_RATE_44100, GPIO_RATE_48000, GPIO_RATE_64000, GPIO_RATE_88200,
146         GPIO_RATE_96000, GPIO_RATE_176400, GPIO_RATE_192000,
147 };
148 
149 static const struct snd_pcm_hw_constraint_list juli_rates_info = {
150         .count = ARRAY_SIZE(juli_rates),
151         .list = juli_rates,
152         .mask = 0,
153 };
154 
155 static int get_gpio_val(int rate)
156 {
157         int i;
158         for (i = 0; i < ARRAY_SIZE(juli_rates); i++)
159                 if (juli_rates[i] == rate)
160                         return gpio_vals[i];
161         return 0;
162 }
163 
164 static void juli_ak4114_write(void *private_data, unsigned char reg,
165                                 unsigned char val)
166 {
167         snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR,
168                                 reg, val);
169 }
170 
171 static unsigned char juli_ak4114_read(void *private_data, unsigned char reg)
172 {
173         return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data,
174                                         AK4114_ADDR, reg);
175 }
176 
177 /*
178  * If SPDIF capture and slaved to SPDIF-IN, setting runtime rate
179  * to the external rate
180  */
181 static void juli_spdif_in_open(struct snd_ice1712 *ice,
182                                 struct snd_pcm_substream *substream)
183 {
184         struct juli_spec *spec = ice->spec;
185         struct snd_pcm_runtime *runtime = substream->runtime;
186         int rate;
187 
188         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
189                         !ice->is_spdif_master(ice))
190                 return;
191         rate = snd_ak4114_external_rate(spec->ak4114);
192         if (rate >= runtime->hw.rate_min && rate <= runtime->hw.rate_max) {
193                 runtime->hw.rate_min = rate;
194                 runtime->hw.rate_max = rate;
195         }
196 }
197 
198 /*
199  * AK4358 section
200  */
201 
202 static void juli_akm_lock(struct snd_akm4xxx *ak, int chip)
203 {
204 }
205 
206 static void juli_akm_unlock(struct snd_akm4xxx *ak, int chip)
207 {
208 }
209 
210 static void juli_akm_write(struct snd_akm4xxx *ak, int chip,
211                            unsigned char addr, unsigned char data)
212 {
213         struct snd_ice1712 *ice = ak->private_data[0];
214          
215         if (snd_BUG_ON(chip))
216                 return;
217         snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data);
218 }
219 
220 /*
221  * change the rate of envy24HT, AK4358, AK5385
222  */
223 static void juli_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
224 {
225         unsigned char old, tmp, ak4358_dfs;
226         unsigned int ak5385_pins, old_gpio, new_gpio;
227         struct snd_ice1712 *ice = ak->private_data[0];
228         struct juli_spec *spec = ice->spec;
229 
230         if (rate == 0)  /* no hint - S/PDIF input is master or the new spdif
231                            input rate undetected, simply return */
232                 return;
233 
234         /* adjust DFS on codecs */
235         if (rate > 96000)  {
236                 ak4358_dfs = 2;
237                 ak5385_pins = GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS0;
238         } else if (rate > 48000) {
239                 ak4358_dfs = 1;
240                 ak5385_pins = GPIO_AK5385A_DFS0;
241         } else {
242                 ak4358_dfs = 0;
243                 ak5385_pins = 0;
244         }
245         /* AK5385 first, since it requires cold reset affecting both codecs */
246         old_gpio = ice->gpio.get_data(ice);
247         new_gpio =  (old_gpio & ~GPIO_AK5385A_MASK) | ak5385_pins;
248         /* dev_dbg(ice->card->dev, "JULI - ak5385 set_rate_val: new gpio 0x%x\n",
249                 new_gpio); */
250         ice->gpio.set_data(ice, new_gpio);
251 
252         /* cold reset */
253         old = inb(ICEMT1724(ice, AC97_CMD));
254         outb(old | VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
255         udelay(1);
256         outb(old & ~VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
257 
258         /* AK4358 */
259         /* set new value, reset DFS */
260         tmp = snd_akm4xxx_get(ak, 0, 2);
261         snd_akm4xxx_reset(ak, 1);
262         tmp = snd_akm4xxx_get(ak, 0, 2);
263         tmp &= ~(0x03 << 4);
264         tmp |= ak4358_dfs << 4;
265         snd_akm4xxx_set(ak, 0, 2, tmp);
266         snd_akm4xxx_reset(ak, 0);
267 
268         /* reinit ak4114 */
269         snd_ak4114_reinit(spec->ak4114);
270 }
271 
272 #define AK_DAC(xname, xch)      { .name = xname, .num_channels = xch }
273 #define PCM_VOLUME              "PCM Playback Volume"
274 #define MONITOR_AN_IN_VOLUME    "Monitor Analog In Volume"
275 #define MONITOR_DIG_IN_VOLUME   "Monitor Digital In Volume"
276 #define MONITOR_DIG_OUT_VOLUME  "Monitor Digital Out Volume"
277 
278 static const struct snd_akm4xxx_dac_channel juli_dac[] = {
279         AK_DAC(PCM_VOLUME, 2),
280         AK_DAC(MONITOR_AN_IN_VOLUME, 2),
281         AK_DAC(MONITOR_DIG_OUT_VOLUME, 2),
282         AK_DAC(MONITOR_DIG_IN_VOLUME, 2),
283 };
284 
285 
286 static const struct snd_akm4xxx akm_juli_dac = {
287         .type = SND_AK4358,
288         .num_dacs = 8,  /* DAC1 - analog out
289                            DAC2 - analog in monitor
290                            DAC3 - digital out monitor
291                            DAC4 - digital in monitor
292                          */
293         .ops = {
294                 .lock = juli_akm_lock,
295                 .unlock = juli_akm_unlock,
296                 .write = juli_akm_write,
297                 .set_rate_val = juli_akm_set_rate_val
298         },
299         .dac_info = juli_dac,
300 };
301 
302 #define juli_mute_info          snd_ctl_boolean_mono_info
303 
304 static int juli_mute_get(struct snd_kcontrol *kcontrol,
305                 struct snd_ctl_elem_value *ucontrol)
306 {
307         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
308         unsigned int val;
309         val = ice->gpio.get_data(ice) & (unsigned int) kcontrol->private_value;
310         if (kcontrol->private_value == GPIO_MUTE_CONTROL)
311                 /* val 0 = signal on */
312                 ucontrol->value.integer.value[0] = (val) ? 0 : 1;
313         else
314                 /* val 1 = signal on */
315                 ucontrol->value.integer.value[0] = (val) ? 1 : 0;
316         return 0;
317 }
318 
319 static int juli_mute_put(struct snd_kcontrol *kcontrol,
320                 struct snd_ctl_elem_value *ucontrol)
321 {
322         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
323         unsigned int old_gpio, new_gpio;
324         old_gpio = ice->gpio.get_data(ice);
325         if (ucontrol->value.integer.value[0]) {
326                 /* unmute */
327                 if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
328                         /* 0 = signal on */
329                         new_gpio = old_gpio & ~GPIO_MUTE_CONTROL;
330                         /* un-smuting DAC */
331                         snd_akm4xxx_write(ice->akm, 0, 0x01, 0x01);
332                 } else
333                         /* 1 = signal on */
334                         new_gpio =  old_gpio |
335                                 (unsigned int) kcontrol->private_value;
336         } else {
337                 /* mute */
338                 if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
339                         /* 1 = signal off */
340                         new_gpio = old_gpio | GPIO_MUTE_CONTROL;
341                         /* smuting DAC */
342                         snd_akm4xxx_write(ice->akm, 0, 0x01, 0x03);
343                 } else
344                         /* 0 = signal off */
345                         new_gpio =  old_gpio &
346                                 ~((unsigned int) kcontrol->private_value);
347         }
348         /* dev_dbg(ice->card->dev,
349                 "JULI - mute/unmute: control_value: 0x%x, old_gpio: 0x%x, "
350                 "new_gpio 0x%x\n",
351                 (unsigned int)ucontrol->value.integer.value[0], old_gpio,
352                 new_gpio); */
353         if (old_gpio != new_gpio) {
354                 ice->gpio.set_data(ice, new_gpio);
355                 return 1;
356         }
357         /* no change */
358         return 0;
359 }
360 
361 static struct snd_kcontrol_new juli_mute_controls[] = {
362         {
363                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
364                 .name = "Master Playback Switch",
365                 .info = juli_mute_info,
366                 .get = juli_mute_get,
367                 .put = juli_mute_put,
368                 .private_value = GPIO_MUTE_CONTROL,
369         },
370         /* Although the following functionality respects the succint NDA'd
371          * documentation from the card manufacturer, and the same way of
372          * operation is coded in OSS Juli driver, only Digital Out monitor
373          * seems to work. Surprisingly, Analog input monitor outputs Digital
374          * output data. The two are independent, as enabling both doubles
375          * volume of the monitor sound.
376          *
377          * Checking traces on the board suggests the functionality described
378          * by the manufacturer is correct - I2S from ADC and AK4114
379          * go to ICE as well as to Xilinx, I2S inputs of DAC2,3,4 (the monitor
380          * inputs) are fed from Xilinx.
381          *
382          * I even checked traces on board and coded a support in driver for
383          * an alternative possibility - the unused I2S ICE output channels
384          * switched to HW-IN/SPDIF-IN and providing the monitoring signal to
385          * the DAC - to no avail. The I2S outputs seem to be unconnected.
386          *
387          * The windows driver supports the monitoring correctly.
388          */
389         {
390                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
391                 .name = "Monitor Analog In Switch",
392                 .info = juli_mute_info,
393                 .get = juli_mute_get,
394                 .put = juli_mute_put,
395                 .private_value = GPIO_ANAIN_MONITOR,
396         },
397         {
398                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
399                 .name = "Monitor Digital Out Switch",
400                 .info = juli_mute_info,
401                 .get = juli_mute_get,
402                 .put = juli_mute_put,
403                 .private_value = GPIO_DIGOUT_MONITOR,
404         },
405         {
406                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
407                 .name = "Monitor Digital In Switch",
408                 .info = juli_mute_info,
409                 .get = juli_mute_get,
410                 .put = juli_mute_put,
411                 .private_value = GPIO_DIGIN_MONITOR,
412         },
413 };
414 
415 static char *slave_vols[] = {
416         PCM_VOLUME,
417         MONITOR_AN_IN_VOLUME,
418         MONITOR_DIG_IN_VOLUME,
419         MONITOR_DIG_OUT_VOLUME,
420         NULL
421 };
422 
423 static
424 DECLARE_TLV_DB_SCALE(juli_master_db_scale, -6350, 50, 1);
425 
426 static struct snd_kcontrol *ctl_find(struct snd_card *card,
427                                      const char *name)
428 {
429         struct snd_ctl_elem_id sid = {0};
430 
431         strlcpy(sid.name, name, sizeof(sid.name));
432         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
433         return snd_ctl_find_id(card, &sid);
434 }
435 
436 static void add_slaves(struct snd_card *card,
437                        struct snd_kcontrol *master,
438                        char * const *list)
439 {
440         for (; *list; list++) {
441                 struct snd_kcontrol *slave = ctl_find(card, *list);
442                 /* dev_dbg(card->dev, "add_slaves - %s\n", *list); */
443                 if (slave) {
444                         /* dev_dbg(card->dev, "slave %s found\n", *list); */
445                         snd_ctl_add_slave(master, slave);
446                 }
447         }
448 }
449 
450 static int juli_add_controls(struct snd_ice1712 *ice)
451 {
452         struct juli_spec *spec = ice->spec;
453         int err;
454         unsigned int i;
455         struct snd_kcontrol *vmaster;
456 
457         err = snd_ice1712_akm4xxx_build_controls(ice);
458         if (err < 0)
459                 return err;
460 
461         for (i = 0; i < ARRAY_SIZE(juli_mute_controls); i++) {
462                 err = snd_ctl_add(ice->card,
463                                 snd_ctl_new1(&juli_mute_controls[i], ice));
464                 if (err < 0)
465                         return err;
466         }
467         /* Create virtual master control */
468         vmaster = snd_ctl_make_virtual_master("Master Playback Volume",
469                                               juli_master_db_scale);
470         if (!vmaster)
471                 return -ENOMEM;
472         add_slaves(ice->card, vmaster, slave_vols);
473         err = snd_ctl_add(ice->card, vmaster);
474         if (err < 0)
475                 return err;
476 
477         /* only capture SPDIF over AK4114 */
478         return snd_ak4114_build(spec->ak4114, NULL,
479                         ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
480 }
481 
482 /*
483  * suspend/resume
484  * */
485 
486 #ifdef CONFIG_PM_SLEEP
487 static int juli_resume(struct snd_ice1712 *ice)
488 {
489         struct snd_akm4xxx *ak = ice->akm;
490         struct juli_spec *spec = ice->spec;
491         /* akm4358 un-reset, un-mute */
492         snd_akm4xxx_reset(ak, 0);
493         /* reinit ak4114 */
494         snd_ak4114_resume(spec->ak4114);
495         return 0;
496 }
497 
498 static int juli_suspend(struct snd_ice1712 *ice)
499 {
500         struct snd_akm4xxx *ak = ice->akm;
501         struct juli_spec *spec = ice->spec;
502         /* akm4358 reset and soft-mute */
503         snd_akm4xxx_reset(ak, 1);
504         snd_ak4114_suspend(spec->ak4114);
505         return 0;
506 }
507 #endif
508 
509 /*
510  * initialize the chip
511  */
512 
513 static inline int juli_is_spdif_master(struct snd_ice1712 *ice)
514 {
515         return (ice->gpio.get_data(ice) & GPIO_INTERNAL_CLOCK) ? 0 : 1;
516 }
517 
518 static unsigned int juli_get_rate(struct snd_ice1712 *ice)
519 {
520         int i;
521         unsigned char result;
522 
523         result =  ice->gpio.get_data(ice) & GPIO_RATE_MASK;
524         for (i = 0; i < ARRAY_SIZE(gpio_vals); i++)
525                 if (gpio_vals[i] == result)
526                         return juli_rates[i];
527         return 0;
528 }
529 
530 /* setting new rate */
531 static void juli_set_rate(struct snd_ice1712 *ice, unsigned int rate)
532 {
533         unsigned int old, new;
534         unsigned char val;
535 
536         old = ice->gpio.get_data(ice);
537         new =  (old & ~GPIO_RATE_MASK) | get_gpio_val(rate);
538         /* dev_dbg(ice->card->dev, "JULI - set_rate: old %x, new %x\n",
539                         old & GPIO_RATE_MASK,
540                         new & GPIO_RATE_MASK); */
541 
542         ice->gpio.set_data(ice, new);
543         /* switching to external clock - supplied by external circuits */
544         val = inb(ICEMT1724(ice, RATE));
545         outb(val | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
546 }
547 
548 static inline unsigned char juli_set_mclk(struct snd_ice1712 *ice,
549                                           unsigned int rate)
550 {
551         /* no change in master clock */
552         return 0;
553 }
554 
555 /* setting clock to external - SPDIF */
556 static int juli_set_spdif_clock(struct snd_ice1712 *ice, int type)
557 {
558         unsigned int old;
559         old = ice->gpio.get_data(ice);
560         /* external clock (= 0), multiply 1x, 48kHz */
561         ice->gpio.set_data(ice, (old & ~GPIO_RATE_MASK) | GPIO_MULTI_1X |
562                         GPIO_FREQ_48KHZ);
563         return 0;
564 }
565 
566 /* Called when ak4114 detects change in the input SPDIF stream */
567 static void juli_ak4114_change(struct ak4114 *ak4114, unsigned char c0,
568                                unsigned char c1)
569 {
570         struct snd_ice1712 *ice = ak4114->change_callback_private;
571         int rate;
572         if (ice->is_spdif_master(ice) && c1) {
573                 /* only for SPDIF master mode, rate was changed */
574                 rate = snd_ak4114_external_rate(ak4114);
575                 /* dev_dbg(ice->card->dev, "ak4114 - input rate changed to %d\n",
576                                 rate); */
577                 juli_akm_set_rate_val(ice->akm, rate);
578         }
579 }
580 
581 static int juli_init(struct snd_ice1712 *ice)
582 {
583         static const unsigned char ak4114_init_vals[] = {
584                 /* AK4117_REG_PWRDN */  AK4114_RST | AK4114_PWN |
585                                         AK4114_OCKS0 | AK4114_OCKS1,
586                 /* AK4114_REQ_FORMAT */ AK4114_DIF_I24I2S,
587                 /* AK4114_REG_IO0 */    AK4114_TX1E,
588                 /* AK4114_REG_IO1 */    AK4114_EFH_1024 | AK4114_DIT |
589                                         AK4114_IPS(1),
590                 /* AK4114_REG_INT0_MASK */ 0,
591                 /* AK4114_REG_INT1_MASK */ 0
592         };
593         static const unsigned char ak4114_init_txcsb[] = {
594                 0x41, 0x02, 0x2c, 0x00, 0x00
595         };
596         int err;
597         struct juli_spec *spec;
598         struct snd_akm4xxx *ak;
599 
600         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
601         if (!spec)
602                 return -ENOMEM;
603         ice->spec = spec;
604 
605         err = snd_ak4114_create(ice->card,
606                                 juli_ak4114_read,
607                                 juli_ak4114_write,
608                                 ak4114_init_vals, ak4114_init_txcsb,
609                                 ice, &spec->ak4114);
610         if (err < 0)
611                 return err;
612         /* callback for codecs rate setting */
613         spec->ak4114->change_callback = juli_ak4114_change;
614         spec->ak4114->change_callback_private = ice;
615         /* AK4114 in Juli can detect external rate correctly */
616         spec->ak4114->check_flags = 0;
617 
618 #if 0
619 /*
620  * it seems that the analog doughter board detection does not work reliably, so
621  * force the analog flag; it should be very rare (if ever) to come at Juli@
622  * used without the analog daughter board
623  */
624         spec->analog = (ice->gpio.get_data(ice) & GPIO_ANALOG_PRESENT) ? 0 : 1;
625 #else
626         spec->analog = 1;
627 #endif
628 
629         if (spec->analog) {
630                 dev_info(ice->card->dev, "juli@: analog I/O detected\n");
631                 ice->num_total_dacs = 2;
632                 ice->num_total_adcs = 2;
633 
634                 ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
635                 ak = ice->akm;
636                 if (!ak)
637                         return -ENOMEM;
638                 ice->akm_codecs = 1;
639                 err = snd_ice1712_akm4xxx_init(ak, &akm_juli_dac, NULL, ice);
640                 if (err < 0)
641                         return err;
642         }
643 
644         /* juli is clocked by Xilinx array */
645         ice->hw_rates = &juli_rates_info;
646         ice->is_spdif_master = juli_is_spdif_master;
647         ice->get_rate = juli_get_rate;
648         ice->set_rate = juli_set_rate;
649         ice->set_mclk = juli_set_mclk;
650         ice->set_spdif_clock = juli_set_spdif_clock;
651 
652         ice->spdif.ops.open = juli_spdif_in_open;
653 
654 #ifdef CONFIG_PM_SLEEP
655         ice->pm_resume = juli_resume;
656         ice->pm_suspend = juli_suspend;
657         ice->pm_suspend_enabled = 1;
658 #endif
659 
660         return 0;
661 }
662 
663 
664 /*
665  * Juli@ boards don't provide the EEPROM data except for the vendor IDs.
666  * hence the driver needs to sets up it properly.
667  */
668 
669 static unsigned char juli_eeprom[] = {
670         [ICE_EEP2_SYSCONF]     = 0x2b,  /* clock 512, mpu401, 1xADC, 1xDACs,
671                                            SPDIF in */
672         [ICE_EEP2_ACLINK]      = 0x80,  /* I2S */
673         [ICE_EEP2_I2S]         = 0xf8,  /* vol, 96k, 24bit, 192k */
674         [ICE_EEP2_SPDIF]       = 0xc3,  /* out-en, out-int, spdif-in */
675         [ICE_EEP2_GPIO_DIR]    = 0x9f,  /* 5, 6:inputs; 7, 4-0 outputs*/
676         [ICE_EEP2_GPIO_DIR1]   = 0xff,
677         [ICE_EEP2_GPIO_DIR2]   = 0x7f,
678         [ICE_EEP2_GPIO_MASK]   = 0x60,  /* 5, 6: locked; 7, 4-0 writable */
679         [ICE_EEP2_GPIO_MASK1]  = 0x00,  /* 0-7 writable */
680         [ICE_EEP2_GPIO_MASK2]  = 0x7f,
681         [ICE_EEP2_GPIO_STATE]  = GPIO_FREQ_48KHZ | GPIO_MULTI_1X |
682                GPIO_INTERNAL_CLOCK,     /* internal clock, multiple 1x, 48kHz*/
683         [ICE_EEP2_GPIO_STATE1] = 0x00,  /* unmuted */
684         [ICE_EEP2_GPIO_STATE2] = 0x00,
685 };
686 
687 /* entry point */
688 struct snd_ice1712_card_info snd_vt1724_juli_cards[] = {
689         {
690                 .subvendor = VT1724_SUBDEVICE_JULI,
691                 .name = "ESI Juli@",
692                 .model = "juli",
693                 .chip_init = juli_init,
694                 .build_controls = juli_add_controls,
695                 .eeprom_size = sizeof(juli_eeprom),
696                 .eeprom_data = juli_eeprom,
697         },
698         { } /* terminator */
699 };
700 

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