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

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  *   ALSA driver for ICEnsemble VT1724 (Envy24HT)
  4  *
  5  *   Lowlevel functions for ESI Juli@ cards
  6  *
  7  *      Copyright (c) 2004 Jaroslav Kysela <perex@perex.cz>
  8  *                    2008 Pavel Hofman <dustin@seznam.cz>
  9  */
 10 
 11 #include <linux/delay.h>
 12 #include <linux/interrupt.h>
 13 #include <linux/init.h>
 14 #include <linux/slab.h>
 15 #include <linux/string.h>
 16 #include <sound/core.h>
 17 #include <sound/tlv.h>
 18 
 19 #include "ice1712.h"
 20 #include "envy24ht.h"
 21 #include "juli.h"
 22 
 23 struct juli_spec {
 24         struct ak4114 *ak4114;
 25         unsigned int analog:1;
 26 };
 27 
 28 /*
 29  * chip addresses on I2C bus
 30  */
 31 #define AK4114_ADDR             0x20            /* S/PDIF receiver */
 32 #define AK4358_ADDR             0x22            /* DAC */
 33 
 34 /*
 35  * Juli does not use the standard ICE1724 clock scheme. Juli's ice1724 chip is
 36  * supplied by external clock provided by Xilinx array and MK73-1 PLL frequency
 37  * multiplier. Actual frequency is set by ice1724 GPIOs hooked to the Xilinx.
 38  *
 39  * The clock circuitry is supplied by the two ice1724 crystals. This
 40  * arrangement allows to generate independent clock signal for AK4114's input
 41  * rate detection circuit. As a result, Juli, unlike most other
 42  * ice1724+ak4114-based cards, detects spdif input rate correctly.
 43  * This fact is applied in the driver, allowing to modify PCM stream rate
 44  * parameter according to the actual input rate.
 45  *
 46  * Juli uses the remaining three stereo-channels of its DAC to optionally
 47  * monitor analog input, digital input, and digital output. The corresponding
 48  * I2S signals are routed by Xilinx, controlled by GPIOs.
 49  *
 50  * The master mute is implemented using output muting transistors (GPIO) in
 51  * combination with smuting the DAC.
 52  *
 53  * The card itself has no HW master volume control, implemented using the
 54  * vmaster control.
 55  *
 56  * TODO:
 57  * researching and fixing the input monitors
 58  */
 59 
 60 /*
 61  * GPIO pins
 62  */
 63 #define GPIO_FREQ_MASK          (3<<0)
 64 #define GPIO_FREQ_32KHZ         (0<<0)
 65 #define GPIO_FREQ_44KHZ         (1<<0)
 66 #define GPIO_FREQ_48KHZ         (2<<0)
 67 #define GPIO_MULTI_MASK         (3<<2)
 68 #define GPIO_MULTI_4X           (0<<2)
 69 #define GPIO_MULTI_2X           (1<<2)
 70 #define GPIO_MULTI_1X           (2<<2)          /* also external */
 71 #define GPIO_MULTI_HALF         (3<<2)
 72 #define GPIO_INTERNAL_CLOCK     (1<<4)          /* 0 = external, 1 = internal */
 73 #define GPIO_CLOCK_MASK         (1<<4)
 74 #define GPIO_ANALOG_PRESENT     (1<<5)          /* RO only: 0 = present */
 75 #define GPIO_RXMCLK_SEL         (1<<7)          /* must be 0 */
 76 #define GPIO_AK5385A_CKS0       (1<<8)
 77 #define GPIO_AK5385A_DFS1       (1<<9)
 78 #define GPIO_AK5385A_DFS0       (1<<10)
 79 #define GPIO_DIGOUT_MONITOR     (1<<11)         /* 1 = active */
 80 #define GPIO_DIGIN_MONITOR      (1<<12)         /* 1 = active */
 81 #define GPIO_ANAIN_MONITOR      (1<<13)         /* 1 = active */
 82 #define GPIO_AK5385A_CKS1       (1<<14)         /* must be 0 */
 83 #define GPIO_MUTE_CONTROL       (1<<15)         /* output mute, 1 = muted */
 84 
 85 #define GPIO_RATE_MASK          (GPIO_FREQ_MASK | GPIO_MULTI_MASK | \
 86                 GPIO_CLOCK_MASK)
 87 #define GPIO_AK5385A_MASK       (GPIO_AK5385A_CKS0 | GPIO_AK5385A_DFS0 | \
 88                 GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS1)
 89 
 90 #define JULI_PCM_RATE   (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
 91                 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
 92                 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | \
 93                 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \
 94                 SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
 95 
 96 #define GPIO_RATE_16000         (GPIO_FREQ_32KHZ | GPIO_MULTI_HALF | \
 97                 GPIO_INTERNAL_CLOCK)
 98 #define GPIO_RATE_22050         (GPIO_FREQ_44KHZ | GPIO_MULTI_HALF | \
 99                 GPIO_INTERNAL_CLOCK)
100 #define GPIO_RATE_24000         (GPIO_FREQ_48KHZ | GPIO_MULTI_HALF | \
101                 GPIO_INTERNAL_CLOCK)
102 #define GPIO_RATE_32000         (GPIO_FREQ_32KHZ | GPIO_MULTI_1X | \
103                 GPIO_INTERNAL_CLOCK)
104 #define GPIO_RATE_44100         (GPIO_FREQ_44KHZ | GPIO_MULTI_1X | \
105                 GPIO_INTERNAL_CLOCK)
106 #define GPIO_RATE_48000         (GPIO_FREQ_48KHZ | GPIO_MULTI_1X | \
107                 GPIO_INTERNAL_CLOCK)
108 #define GPIO_RATE_64000         (GPIO_FREQ_32KHZ | GPIO_MULTI_2X | \
109                 GPIO_INTERNAL_CLOCK)
110 #define GPIO_RATE_88200         (GPIO_FREQ_44KHZ | GPIO_MULTI_2X | \
111                 GPIO_INTERNAL_CLOCK)
112 #define GPIO_RATE_96000         (GPIO_FREQ_48KHZ | GPIO_MULTI_2X | \
113                 GPIO_INTERNAL_CLOCK)
114 #define GPIO_RATE_176400        (GPIO_FREQ_44KHZ | GPIO_MULTI_4X | \
115                 GPIO_INTERNAL_CLOCK)
116 #define GPIO_RATE_192000        (GPIO_FREQ_48KHZ | GPIO_MULTI_4X | \
117                 GPIO_INTERNAL_CLOCK)
118 
119 /*
120  * Initial setup of the conversion array GPIO <-> rate
121  */
122 static const unsigned int juli_rates[] = {
123         16000, 22050, 24000, 32000,
124         44100, 48000, 64000, 88200,
125         96000, 176400, 192000,
126 };
127 
128 static const unsigned int gpio_vals[] = {
129         GPIO_RATE_16000, GPIO_RATE_22050, GPIO_RATE_24000, GPIO_RATE_32000,
130         GPIO_RATE_44100, GPIO_RATE_48000, GPIO_RATE_64000, GPIO_RATE_88200,
131         GPIO_RATE_96000, GPIO_RATE_176400, GPIO_RATE_192000,
132 };
133 
134 static const struct snd_pcm_hw_constraint_list juli_rates_info = {
135         .count = ARRAY_SIZE(juli_rates),
136         .list = juli_rates,
137         .mask = 0,
138 };
139 
140 static int get_gpio_val(int rate)
141 {
142         int i;
143         for (i = 0; i < ARRAY_SIZE(juli_rates); i++)
144                 if (juli_rates[i] == rate)
145                         return gpio_vals[i];
146         return 0;
147 }
148 
149 static void juli_ak4114_write(void *private_data, unsigned char reg,
150                                 unsigned char val)
151 {
152         snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR,
153                                 reg, val);
154 }
155 
156 static unsigned char juli_ak4114_read(void *private_data, unsigned char reg)
157 {
158         return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data,
159                                         AK4114_ADDR, reg);
160 }
161 
162 /*
163  * If SPDIF capture and slaved to SPDIF-IN, setting runtime rate
164  * to the external rate
165  */
166 static void juli_spdif_in_open(struct snd_ice1712 *ice,
167                                 struct snd_pcm_substream *substream)
168 {
169         struct juli_spec *spec = ice->spec;
170         struct snd_pcm_runtime *runtime = substream->runtime;
171         int rate;
172 
173         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
174                         !ice->is_spdif_master(ice))
175                 return;
176         rate = snd_ak4114_external_rate(spec->ak4114);
177         if (rate >= runtime->hw.rate_min && rate <= runtime->hw.rate_max) {
178                 runtime->hw.rate_min = rate;
179                 runtime->hw.rate_max = rate;
180         }
181 }
182 
183 /*
184  * AK4358 section
185  */
186 
187 static void juli_akm_lock(struct snd_akm4xxx *ak, int chip)
188 {
189 }
190 
191 static void juli_akm_unlock(struct snd_akm4xxx *ak, int chip)
192 {
193 }
194 
195 static void juli_akm_write(struct snd_akm4xxx *ak, int chip,
196                            unsigned char addr, unsigned char data)
197 {
198         struct snd_ice1712 *ice = ak->private_data[0];
199          
200         if (snd_BUG_ON(chip))
201                 return;
202         snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data);
203 }
204 
205 /*
206  * change the rate of envy24HT, AK4358, AK5385
207  */
208 static void juli_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
209 {
210         unsigned char old, tmp, ak4358_dfs;
211         unsigned int ak5385_pins, old_gpio, new_gpio;
212         struct snd_ice1712 *ice = ak->private_data[0];
213         struct juli_spec *spec = ice->spec;
214 
215         if (rate == 0)  /* no hint - S/PDIF input is master or the new spdif
216                            input rate undetected, simply return */
217                 return;
218 
219         /* adjust DFS on codecs */
220         if (rate > 96000)  {
221                 ak4358_dfs = 2;
222                 ak5385_pins = GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS0;
223         } else if (rate > 48000) {
224                 ak4358_dfs = 1;
225                 ak5385_pins = GPIO_AK5385A_DFS0;
226         } else {
227                 ak4358_dfs = 0;
228                 ak5385_pins = 0;
229         }
230         /* AK5385 first, since it requires cold reset affecting both codecs */
231         old_gpio = ice->gpio.get_data(ice);
232         new_gpio =  (old_gpio & ~GPIO_AK5385A_MASK) | ak5385_pins;
233         /* dev_dbg(ice->card->dev, "JULI - ak5385 set_rate_val: new gpio 0x%x\n",
234                 new_gpio); */
235         ice->gpio.set_data(ice, new_gpio);
236 
237         /* cold reset */
238         old = inb(ICEMT1724(ice, AC97_CMD));
239         outb(old | VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
240         udelay(1);
241         outb(old & ~VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
242 
243         /* AK4358 */
244         /* set new value, reset DFS */
245         tmp = snd_akm4xxx_get(ak, 0, 2);
246         snd_akm4xxx_reset(ak, 1);
247         tmp = snd_akm4xxx_get(ak, 0, 2);
248         tmp &= ~(0x03 << 4);
249         tmp |= ak4358_dfs << 4;
250         snd_akm4xxx_set(ak, 0, 2, tmp);
251         snd_akm4xxx_reset(ak, 0);
252 
253         /* reinit ak4114 */
254         snd_ak4114_reinit(spec->ak4114);
255 }
256 
257 #define AK_DAC(xname, xch)      { .name = xname, .num_channels = xch }
258 #define PCM_VOLUME              "PCM Playback Volume"
259 #define MONITOR_AN_IN_VOLUME    "Monitor Analog In Volume"
260 #define MONITOR_DIG_IN_VOLUME   "Monitor Digital In Volume"
261 #define MONITOR_DIG_OUT_VOLUME  "Monitor Digital Out Volume"
262 
263 static const struct snd_akm4xxx_dac_channel juli_dac[] = {
264         AK_DAC(PCM_VOLUME, 2),
265         AK_DAC(MONITOR_AN_IN_VOLUME, 2),
266         AK_DAC(MONITOR_DIG_OUT_VOLUME, 2),
267         AK_DAC(MONITOR_DIG_IN_VOLUME, 2),
268 };
269 
270 
271 static const struct snd_akm4xxx akm_juli_dac = {
272         .type = SND_AK4358,
273         .num_dacs = 8,  /* DAC1 - analog out
274                            DAC2 - analog in monitor
275                            DAC3 - digital out monitor
276                            DAC4 - digital in monitor
277                          */
278         .ops = {
279                 .lock = juli_akm_lock,
280                 .unlock = juli_akm_unlock,
281                 .write = juli_akm_write,
282                 .set_rate_val = juli_akm_set_rate_val
283         },
284         .dac_info = juli_dac,
285 };
286 
287 #define juli_mute_info          snd_ctl_boolean_mono_info
288 
289 static int juli_mute_get(struct snd_kcontrol *kcontrol,
290                 struct snd_ctl_elem_value *ucontrol)
291 {
292         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
293         unsigned int val;
294         val = ice->gpio.get_data(ice) & (unsigned int) kcontrol->private_value;
295         if (kcontrol->private_value == GPIO_MUTE_CONTROL)
296                 /* val 0 = signal on */
297                 ucontrol->value.integer.value[0] = (val) ? 0 : 1;
298         else
299                 /* val 1 = signal on */
300                 ucontrol->value.integer.value[0] = (val) ? 1 : 0;
301         return 0;
302 }
303 
304 static int juli_mute_put(struct snd_kcontrol *kcontrol,
305                 struct snd_ctl_elem_value *ucontrol)
306 {
307         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
308         unsigned int old_gpio, new_gpio;
309         old_gpio = ice->gpio.get_data(ice);
310         if (ucontrol->value.integer.value[0]) {
311                 /* unmute */
312                 if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
313                         /* 0 = signal on */
314                         new_gpio = old_gpio & ~GPIO_MUTE_CONTROL;
315                         /* un-smuting DAC */
316                         snd_akm4xxx_write(ice->akm, 0, 0x01, 0x01);
317                 } else
318                         /* 1 = signal on */
319                         new_gpio =  old_gpio |
320                                 (unsigned int) kcontrol->private_value;
321         } else {
322                 /* mute */
323                 if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
324                         /* 1 = signal off */
325                         new_gpio = old_gpio | GPIO_MUTE_CONTROL;
326                         /* smuting DAC */
327                         snd_akm4xxx_write(ice->akm, 0, 0x01, 0x03);
328                 } else
329                         /* 0 = signal off */
330                         new_gpio =  old_gpio &
331                                 ~((unsigned int) kcontrol->private_value);
332         }
333         /* dev_dbg(ice->card->dev,
334                 "JULI - mute/unmute: control_value: 0x%x, old_gpio: 0x%x, "
335                 "new_gpio 0x%x\n",
336                 (unsigned int)ucontrol->value.integer.value[0], old_gpio,
337                 new_gpio); */
338         if (old_gpio != new_gpio) {
339                 ice->gpio.set_data(ice, new_gpio);
340                 return 1;
341         }
342         /* no change */
343         return 0;
344 }
345 
346 static const struct snd_kcontrol_new juli_mute_controls[] = {
347         {
348                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
349                 .name = "Master Playback Switch",
350                 .info = juli_mute_info,
351                 .get = juli_mute_get,
352                 .put = juli_mute_put,
353                 .private_value = GPIO_MUTE_CONTROL,
354         },
355         /* Although the following functionality respects the succint NDA'd
356          * documentation from the card manufacturer, and the same way of
357          * operation is coded in OSS Juli driver, only Digital Out monitor
358          * seems to work. Surprisingly, Analog input monitor outputs Digital
359          * output data. The two are independent, as enabling both doubles
360          * volume of the monitor sound.
361          *
362          * Checking traces on the board suggests the functionality described
363          * by the manufacturer is correct - I2S from ADC and AK4114
364          * go to ICE as well as to Xilinx, I2S inputs of DAC2,3,4 (the monitor
365          * inputs) are fed from Xilinx.
366          *
367          * I even checked traces on board and coded a support in driver for
368          * an alternative possibility - the unused I2S ICE output channels
369          * switched to HW-IN/SPDIF-IN and providing the monitoring signal to
370          * the DAC - to no avail. The I2S outputs seem to be unconnected.
371          *
372          * The windows driver supports the monitoring correctly.
373          */
374         {
375                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
376                 .name = "Monitor Analog In Switch",
377                 .info = juli_mute_info,
378                 .get = juli_mute_get,
379                 .put = juli_mute_put,
380                 .private_value = GPIO_ANAIN_MONITOR,
381         },
382         {
383                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
384                 .name = "Monitor Digital Out Switch",
385                 .info = juli_mute_info,
386                 .get = juli_mute_get,
387                 .put = juli_mute_put,
388                 .private_value = GPIO_DIGOUT_MONITOR,
389         },
390         {
391                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
392                 .name = "Monitor Digital In Switch",
393                 .info = juli_mute_info,
394                 .get = juli_mute_get,
395                 .put = juli_mute_put,
396                 .private_value = GPIO_DIGIN_MONITOR,
397         },
398 };
399 
400 static const char * const follower_vols[] = {
401         PCM_VOLUME,
402         MONITOR_AN_IN_VOLUME,
403         MONITOR_DIG_IN_VOLUME,
404         MONITOR_DIG_OUT_VOLUME,
405         NULL
406 };
407 
408 static
409 DECLARE_TLV_DB_SCALE(juli_master_db_scale, -6350, 50, 1);
410 
411 static int juli_add_controls(struct snd_ice1712 *ice)
412 {
413         struct juli_spec *spec = ice->spec;
414         int err;
415         unsigned int i;
416         struct snd_kcontrol *vmaster;
417 
418         err = snd_ice1712_akm4xxx_build_controls(ice);
419         if (err < 0)
420                 return err;
421 
422         for (i = 0; i < ARRAY_SIZE(juli_mute_controls); i++) {
423                 err = snd_ctl_add(ice->card,
424                                 snd_ctl_new1(&juli_mute_controls[i], ice));
425                 if (err < 0)
426                         return err;
427         }
428         /* Create virtual master control */
429         vmaster = snd_ctl_make_virtual_master("Master Playback Volume",
430                                               juli_master_db_scale);
431         if (!vmaster)
432                 return -ENOMEM;
433         err = snd_ctl_add(ice->card, vmaster);
434         if (err < 0)
435                 return err;
436         err = snd_ctl_add_followers(ice->card, vmaster, follower_vols);
437         if (err < 0)
438                 return err;
439 
440         /* only capture SPDIF over AK4114 */
441         return snd_ak4114_build(spec->ak4114, NULL,
442                         ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
443 }
444 
445 /*
446  * suspend/resume
447  * */
448 
449 #ifdef CONFIG_PM_SLEEP
450 static int juli_resume(struct snd_ice1712 *ice)
451 {
452         struct snd_akm4xxx *ak = ice->akm;
453         struct juli_spec *spec = ice->spec;
454         /* akm4358 un-reset, un-mute */
455         snd_akm4xxx_reset(ak, 0);
456         /* reinit ak4114 */
457         snd_ak4114_resume(spec->ak4114);
458         return 0;
459 }
460 
461 static int juli_suspend(struct snd_ice1712 *ice)
462 {
463         struct snd_akm4xxx *ak = ice->akm;
464         struct juli_spec *spec = ice->spec;
465         /* akm4358 reset and soft-mute */
466         snd_akm4xxx_reset(ak, 1);
467         snd_ak4114_suspend(spec->ak4114);
468         return 0;
469 }
470 #endif
471 
472 /*
473  * initialize the chip
474  */
475 
476 static inline int juli_is_spdif_master(struct snd_ice1712 *ice)
477 {
478         return (ice->gpio.get_data(ice) & GPIO_INTERNAL_CLOCK) ? 0 : 1;
479 }
480 
481 static unsigned int juli_get_rate(struct snd_ice1712 *ice)
482 {
483         int i;
484         unsigned char result;
485 
486         result =  ice->gpio.get_data(ice) & GPIO_RATE_MASK;
487         for (i = 0; i < ARRAY_SIZE(gpio_vals); i++)
488                 if (gpio_vals[i] == result)
489                         return juli_rates[i];
490         return 0;
491 }
492 
493 /* setting new rate */
494 static void juli_set_rate(struct snd_ice1712 *ice, unsigned int rate)
495 {
496         unsigned int old, new;
497         unsigned char val;
498 
499         old = ice->gpio.get_data(ice);
500         new =  (old & ~GPIO_RATE_MASK) | get_gpio_val(rate);
501         /* dev_dbg(ice->card->dev, "JULI - set_rate: old %x, new %x\n",
502                         old & GPIO_RATE_MASK,
503                         new & GPIO_RATE_MASK); */
504 
505         ice->gpio.set_data(ice, new);
506         /* switching to external clock - supplied by external circuits */
507         val = inb(ICEMT1724(ice, RATE));
508         outb(val | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
509 }
510 
511 static inline unsigned char juli_set_mclk(struct snd_ice1712 *ice,
512                                           unsigned int rate)
513 {
514         /* no change in master clock */
515         return 0;
516 }
517 
518 /* setting clock to external - SPDIF */
519 static int juli_set_spdif_clock(struct snd_ice1712 *ice, int type)
520 {
521         unsigned int old;
522         old = ice->gpio.get_data(ice);
523         /* external clock (= 0), multiply 1x, 48kHz */
524         ice->gpio.set_data(ice, (old & ~GPIO_RATE_MASK) | GPIO_MULTI_1X |
525                         GPIO_FREQ_48KHZ);
526         return 0;
527 }
528 
529 /* Called when ak4114 detects change in the input SPDIF stream */
530 static void juli_ak4114_change(struct ak4114 *ak4114, unsigned char c0,
531                                unsigned char c1)
532 {
533         struct snd_ice1712 *ice = ak4114->change_callback_private;
534         int rate;
535         if (ice->is_spdif_master(ice) && c1) {
536                 /* only for SPDIF master mode, rate was changed */
537                 rate = snd_ak4114_external_rate(ak4114);
538                 /* dev_dbg(ice->card->dev, "ak4114 - input rate changed to %d\n",
539                                 rate); */
540                 juli_akm_set_rate_val(ice->akm, rate);
541         }
542 }
543 
544 static int juli_init(struct snd_ice1712 *ice)
545 {
546         static const unsigned char ak4114_init_vals[] = {
547                 /* AK4117_REG_PWRDN */  AK4114_RST | AK4114_PWN |
548                                         AK4114_OCKS0 | AK4114_OCKS1,
549                 /* AK4114_REQ_FORMAT */ AK4114_DIF_I24I2S,
550                 /* AK4114_REG_IO0 */    AK4114_TX1E,
551                 /* AK4114_REG_IO1 */    AK4114_EFH_1024 | AK4114_DIT |
552                                         AK4114_IPS(1),
553                 /* AK4114_REG_INT0_MASK */ 0,
554                 /* AK4114_REG_INT1_MASK */ 0
555         };
556         static const unsigned char ak4114_init_txcsb[] = {
557                 0x41, 0x02, 0x2c, 0x00, 0x00
558         };
559         int err;
560         struct juli_spec *spec;
561         struct snd_akm4xxx *ak;
562 
563         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
564         if (!spec)
565                 return -ENOMEM;
566         ice->spec = spec;
567 
568         err = snd_ak4114_create(ice->card,
569                                 juli_ak4114_read,
570                                 juli_ak4114_write,
571                                 ak4114_init_vals, ak4114_init_txcsb,
572                                 ice, &spec->ak4114);
573         if (err < 0)
574                 return err;
575         /* callback for codecs rate setting */
576         spec->ak4114->change_callback = juli_ak4114_change;
577         spec->ak4114->change_callback_private = ice;
578         /* AK4114 in Juli can detect external rate correctly */
579         spec->ak4114->check_flags = 0;
580 
581 #if 0
582 /*
583  * it seems that the analog doughter board detection does not work reliably, so
584  * force the analog flag; it should be very rare (if ever) to come at Juli@
585  * used without the analog daughter board
586  */
587         spec->analog = (ice->gpio.get_data(ice) & GPIO_ANALOG_PRESENT) ? 0 : 1;
588 #else
589         spec->analog = 1;
590 #endif
591 
592         if (spec->analog) {
593                 dev_info(ice->card->dev, "juli@: analog I/O detected\n");
594                 ice->num_total_dacs = 2;
595                 ice->num_total_adcs = 2;
596 
597                 ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
598                 ak = ice->akm;
599                 if (!ak)
600                         return -ENOMEM;
601                 ice->akm_codecs = 1;
602                 err = snd_ice1712_akm4xxx_init(ak, &akm_juli_dac, NULL, ice);
603                 if (err < 0)
604                         return err;
605         }
606 
607         /* juli is clocked by Xilinx array */
608         ice->hw_rates = &juli_rates_info;
609         ice->is_spdif_master = juli_is_spdif_master;
610         ice->get_rate = juli_get_rate;
611         ice->set_rate = juli_set_rate;
612         ice->set_mclk = juli_set_mclk;
613         ice->set_spdif_clock = juli_set_spdif_clock;
614 
615         ice->spdif.ops.open = juli_spdif_in_open;
616 
617 #ifdef CONFIG_PM_SLEEP
618         ice->pm_resume = juli_resume;
619         ice->pm_suspend = juli_suspend;
620         ice->pm_suspend_enabled = 1;
621 #endif
622 
623         return 0;
624 }
625 
626 
627 /*
628  * Juli@ boards don't provide the EEPROM data except for the vendor IDs.
629  * hence the driver needs to sets up it properly.
630  */
631 
632 static const unsigned char juli_eeprom[] = {
633         [ICE_EEP2_SYSCONF]     = 0x2b,  /* clock 512, mpu401, 1xADC, 1xDACs,
634                                            SPDIF in */
635         [ICE_EEP2_ACLINK]      = 0x80,  /* I2S */
636         [ICE_EEP2_I2S]         = 0xf8,  /* vol, 96k, 24bit, 192k */
637         [ICE_EEP2_SPDIF]       = 0xc3,  /* out-en, out-int, spdif-in */
638         [ICE_EEP2_GPIO_DIR]    = 0x9f,  /* 5, 6:inputs; 7, 4-0 outputs*/
639         [ICE_EEP2_GPIO_DIR1]   = 0xff,
640         [ICE_EEP2_GPIO_DIR2]   = 0x7f,
641         [ICE_EEP2_GPIO_MASK]   = 0x60,  /* 5, 6: locked; 7, 4-0 writable */
642         [ICE_EEP2_GPIO_MASK1]  = 0x00,  /* 0-7 writable */
643         [ICE_EEP2_GPIO_MASK2]  = 0x7f,
644         [ICE_EEP2_GPIO_STATE]  = GPIO_FREQ_48KHZ | GPIO_MULTI_1X |
645                GPIO_INTERNAL_CLOCK,     /* internal clock, multiple 1x, 48kHz*/
646         [ICE_EEP2_GPIO_STATE1] = 0x00,  /* unmuted */
647         [ICE_EEP2_GPIO_STATE2] = 0x00,
648 };
649 
650 /* entry point */
651 struct snd_ice1712_card_info snd_vt1724_juli_cards[] = {
652         {
653                 .subvendor = VT1724_SUBDEVICE_JULI,
654                 .name = "ESI Juli@",
655                 .model = "juli",
656                 .chip_init = juli_init,
657                 .build_controls = juli_add_controls,
658                 .eeprom_size = sizeof(juli_eeprom),
659                 .eeprom_data = juli_eeprom,
660         },
661         { } /* terminator */
662 };
663 

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