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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 <sound/core.h>
 31 #include <sound/tlv.h>
 32 
 33 #include "ice1712.h"
 34 #include "envy24ht.h"
 35 #include "juli.h"
 36 
 37 struct juli_spec {
 38         struct ak4114 *ak4114;
 39         unsigned int analog:1;
 40 };
 41 
 42 /*
 43  * chip addresses on I2C bus
 44  */
 45 #define AK4114_ADDR             0x20            /* S/PDIF receiver */
 46 #define AK4358_ADDR             0x22            /* DAC */
 47 
 48 /*
 49  * Juli does not use the standard ICE1724 clock scheme. Juli's ice1724 chip is
 50  * supplied by external clock provided by Xilinx array and MK73-1 PLL frequency
 51  * multiplier. Actual frequency is set by ice1724 GPIOs hooked to the Xilinx.
 52  *
 53  * The clock circuitry is supplied by the two ice1724 crystals. This
 54  * arrangement allows to generate independent clock signal for AK4114's input
 55  * rate detection circuit. As a result, Juli, unlike most other
 56  * ice1724+ak4114-based cards, detects spdif input rate correctly.
 57  * This fact is applied in the driver, allowing to modify PCM stream rate
 58  * parameter according to the actual input rate.
 59  *
 60  * Juli uses the remaining three stereo-channels of its DAC to optionally
 61  * monitor analog input, digital input, and digital output. The corresponding
 62  * I2S signals are routed by Xilinx, controlled by GPIOs.
 63  *
 64  * The master mute is implemented using output muting transistors (GPIO) in
 65  * combination with smuting the DAC.
 66  *
 67  * The card itself has no HW master volume control, implemented using the
 68  * vmaster control.
 69  *
 70  * TODO:
 71  * researching and fixing the input monitors
 72  */
 73 
 74 /*
 75  * GPIO pins
 76  */
 77 #define GPIO_FREQ_MASK          (3<<0)
 78 #define GPIO_FREQ_32KHZ         (0<<0)
 79 #define GPIO_FREQ_44KHZ         (1<<0)
 80 #define GPIO_FREQ_48KHZ         (2<<0)
 81 #define GPIO_MULTI_MASK         (3<<2)
 82 #define GPIO_MULTI_4X           (0<<2)
 83 #define GPIO_MULTI_2X           (1<<2)
 84 #define GPIO_MULTI_1X           (2<<2)          /* also external */
 85 #define GPIO_MULTI_HALF         (3<<2)
 86 #define GPIO_INTERNAL_CLOCK     (1<<4)          /* 0 = external, 1 = internal */
 87 #define GPIO_CLOCK_MASK         (1<<4)
 88 #define GPIO_ANALOG_PRESENT     (1<<5)          /* RO only: 0 = present */
 89 #define GPIO_RXMCLK_SEL         (1<<7)          /* must be 0 */
 90 #define GPIO_AK5385A_CKS0       (1<<8)
 91 #define GPIO_AK5385A_DFS1       (1<<9)
 92 #define GPIO_AK5385A_DFS0       (1<<10)
 93 #define GPIO_DIGOUT_MONITOR     (1<<11)         /* 1 = active */
 94 #define GPIO_DIGIN_MONITOR      (1<<12)         /* 1 = active */
 95 #define GPIO_ANAIN_MONITOR      (1<<13)         /* 1 = active */
 96 #define GPIO_AK5385A_CKS1       (1<<14)         /* must be 0 */
 97 #define GPIO_MUTE_CONTROL       (1<<15)         /* output mute, 1 = muted */
 98 
 99 #define GPIO_RATE_MASK          (GPIO_FREQ_MASK | GPIO_MULTI_MASK | \
100                 GPIO_CLOCK_MASK)
101 #define GPIO_AK5385A_MASK       (GPIO_AK5385A_CKS0 | GPIO_AK5385A_DFS0 | \
102                 GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS1)
103 
104 #define JULI_PCM_RATE   (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
105                 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
106                 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | \
107                 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \
108                 SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
109 
110 #define GPIO_RATE_16000         (GPIO_FREQ_32KHZ | GPIO_MULTI_HALF | \
111                 GPIO_INTERNAL_CLOCK)
112 #define GPIO_RATE_22050         (GPIO_FREQ_44KHZ | GPIO_MULTI_HALF | \
113                 GPIO_INTERNAL_CLOCK)
114 #define GPIO_RATE_24000         (GPIO_FREQ_48KHZ | GPIO_MULTI_HALF | \
115                 GPIO_INTERNAL_CLOCK)
116 #define GPIO_RATE_32000         (GPIO_FREQ_32KHZ | GPIO_MULTI_1X | \
117                 GPIO_INTERNAL_CLOCK)
118 #define GPIO_RATE_44100         (GPIO_FREQ_44KHZ | GPIO_MULTI_1X | \
119                 GPIO_INTERNAL_CLOCK)
120 #define GPIO_RATE_48000         (GPIO_FREQ_48KHZ | GPIO_MULTI_1X | \
121                 GPIO_INTERNAL_CLOCK)
122 #define GPIO_RATE_64000         (GPIO_FREQ_32KHZ | GPIO_MULTI_2X | \
123                 GPIO_INTERNAL_CLOCK)
124 #define GPIO_RATE_88200         (GPIO_FREQ_44KHZ | GPIO_MULTI_2X | \
125                 GPIO_INTERNAL_CLOCK)
126 #define GPIO_RATE_96000         (GPIO_FREQ_48KHZ | GPIO_MULTI_2X | \
127                 GPIO_INTERNAL_CLOCK)
128 #define GPIO_RATE_176400        (GPIO_FREQ_44KHZ | GPIO_MULTI_4X | \
129                 GPIO_INTERNAL_CLOCK)
130 #define GPIO_RATE_192000        (GPIO_FREQ_48KHZ | GPIO_MULTI_4X | \
131                 GPIO_INTERNAL_CLOCK)
132 
133 /*
134  * Initial setup of the conversion array GPIO <-> rate
135  */
136 static unsigned int juli_rates[] = {
137         16000, 22050, 24000, 32000,
138         44100, 48000, 64000, 88200,
139         96000, 176400, 192000,
140 };
141 
142 static unsigned int gpio_vals[] = {
143         GPIO_RATE_16000, GPIO_RATE_22050, GPIO_RATE_24000, GPIO_RATE_32000,
144         GPIO_RATE_44100, GPIO_RATE_48000, GPIO_RATE_64000, GPIO_RATE_88200,
145         GPIO_RATE_96000, GPIO_RATE_176400, GPIO_RATE_192000,
146 };
147 
148 static struct snd_pcm_hw_constraint_list juli_rates_info = {
149         .count = ARRAY_SIZE(juli_rates),
150         .list = juli_rates,
151         .mask = 0,
152 };
153 
154 static int get_gpio_val(int rate)
155 {
156         int i;
157         for (i = 0; i < ARRAY_SIZE(juli_rates); i++)
158                 if (juli_rates[i] == rate)
159                         return gpio_vals[i];
160         return 0;
161 }
162 
163 static void juli_ak4114_write(void *private_data, unsigned char reg,
164                                 unsigned char val)
165 {
166         snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR,
167                                 reg, val);
168 }
169 
170 static unsigned char juli_ak4114_read(void *private_data, unsigned char reg)
171 {
172         return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data,
173                                         AK4114_ADDR, reg);
174 }
175 
176 /*
177  * If SPDIF capture and slaved to SPDIF-IN, setting runtime rate
178  * to the external rate
179  */
180 static void juli_spdif_in_open(struct snd_ice1712 *ice,
181                                 struct snd_pcm_substream *substream)
182 {
183         struct juli_spec *spec = ice->spec;
184         struct snd_pcm_runtime *runtime = substream->runtime;
185         int rate;
186 
187         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
188                         !ice->is_spdif_master(ice))
189                 return;
190         rate = snd_ak4114_external_rate(spec->ak4114);
191         if (rate >= runtime->hw.rate_min && rate <= runtime->hw.rate_max) {
192                 runtime->hw.rate_min = rate;
193                 runtime->hw.rate_max = rate;
194         }
195 }
196 
197 /*
198  * AK4358 section
199  */
200 
201 static void juli_akm_lock(struct snd_akm4xxx *ak, int chip)
202 {
203 }
204 
205 static void juli_akm_unlock(struct snd_akm4xxx *ak, int chip)
206 {
207 }
208 
209 static void juli_akm_write(struct snd_akm4xxx *ak, int chip,
210                            unsigned char addr, unsigned char data)
211 {
212         struct snd_ice1712 *ice = ak->private_data[0];
213          
214         if (snd_BUG_ON(chip))
215                 return;
216         snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data);
217 }
218 
219 /*
220  * change the rate of envy24HT, AK4358, AK5385
221  */
222 static void juli_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
223 {
224         unsigned char old, tmp, ak4358_dfs;
225         unsigned int ak5385_pins, old_gpio, new_gpio;
226         struct snd_ice1712 *ice = ak->private_data[0];
227         struct juli_spec *spec = ice->spec;
228 
229         if (rate == 0)  /* no hint - S/PDIF input is master or the new spdif
230                            input rate undetected, simply return */
231                 return;
232 
233         /* adjust DFS on codecs */
234         if (rate > 96000)  {
235                 ak4358_dfs = 2;
236                 ak5385_pins = GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS0;
237         } else if (rate > 48000) {
238                 ak4358_dfs = 1;
239                 ak5385_pins = GPIO_AK5385A_DFS0;
240         } else {
241                 ak4358_dfs = 0;
242                 ak5385_pins = 0;
243         }
244         /* AK5385 first, since it requires cold reset affecting both codecs */
245         old_gpio = ice->gpio.get_data(ice);
246         new_gpio =  (old_gpio & ~GPIO_AK5385A_MASK) | ak5385_pins;
247         /* printk(KERN_DEBUG "JULI - ak5385 set_rate_val: new gpio 0x%x\n",
248                 new_gpio); */
249         ice->gpio.set_data(ice, new_gpio);
250 
251         /* cold reset */
252         old = inb(ICEMT1724(ice, AC97_CMD));
253         outb(old | VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
254         udelay(1);
255         outb(old & ~VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
256 
257         /* AK4358 */
258         /* set new value, reset DFS */
259         tmp = snd_akm4xxx_get(ak, 0, 2);
260         snd_akm4xxx_reset(ak, 1);
261         tmp = snd_akm4xxx_get(ak, 0, 2);
262         tmp &= ~(0x03 << 4);
263         tmp |= ak4358_dfs << 4;
264         snd_akm4xxx_set(ak, 0, 2, tmp);
265         snd_akm4xxx_reset(ak, 0);
266 
267         /* reinit ak4114 */
268         snd_ak4114_reinit(spec->ak4114);
269 }
270 
271 #define AK_DAC(xname, xch)      { .name = xname, .num_channels = xch }
272 #define PCM_VOLUME              "PCM Playback Volume"
273 #define MONITOR_AN_IN_VOLUME    "Monitor Analog In Volume"
274 #define MONITOR_DIG_IN_VOLUME   "Monitor Digital In Volume"
275 #define MONITOR_DIG_OUT_VOLUME  "Monitor Digital Out Volume"
276 
277 static const struct snd_akm4xxx_dac_channel juli_dac[] = {
278         AK_DAC(PCM_VOLUME, 2),
279         AK_DAC(MONITOR_AN_IN_VOLUME, 2),
280         AK_DAC(MONITOR_DIG_OUT_VOLUME, 2),
281         AK_DAC(MONITOR_DIG_IN_VOLUME, 2),
282 };
283 
284 
285 static struct snd_akm4xxx akm_juli_dac = {
286         .type = SND_AK4358,
287         .num_dacs = 8,  /* DAC1 - analog out
288                            DAC2 - analog in monitor
289                            DAC3 - digital out monitor
290                            DAC4 - digital in monitor
291                          */
292         .ops = {
293                 .lock = juli_akm_lock,
294                 .unlock = juli_akm_unlock,
295                 .write = juli_akm_write,
296                 .set_rate_val = juli_akm_set_rate_val
297         },
298         .dac_info = juli_dac,
299 };
300 
301 #define juli_mute_info          snd_ctl_boolean_mono_info
302 
303 static int juli_mute_get(struct snd_kcontrol *kcontrol,
304                 struct snd_ctl_elem_value *ucontrol)
305 {
306         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
307         unsigned int val;
308         val = ice->gpio.get_data(ice) & (unsigned int) kcontrol->private_value;
309         if (kcontrol->private_value == GPIO_MUTE_CONTROL)
310                 /* val 0 = signal on */
311                 ucontrol->value.integer.value[0] = (val) ? 0 : 1;
312         else
313                 /* val 1 = signal on */
314                 ucontrol->value.integer.value[0] = (val) ? 1 : 0;
315         return 0;
316 }
317 
318 static int juli_mute_put(struct snd_kcontrol *kcontrol,
319                 struct snd_ctl_elem_value *ucontrol)
320 {
321         struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
322         unsigned int old_gpio, new_gpio;
323         old_gpio = ice->gpio.get_data(ice);
324         if (ucontrol->value.integer.value[0]) {
325                 /* unmute */
326                 if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
327                         /* 0 = signal on */
328                         new_gpio = old_gpio & ~GPIO_MUTE_CONTROL;
329                         /* un-smuting DAC */
330                         snd_akm4xxx_write(ice->akm, 0, 0x01, 0x01);
331                 } else
332                         /* 1 = signal on */
333                         new_gpio =  old_gpio |
334                                 (unsigned int) kcontrol->private_value;
335         } else {
336                 /* mute */
337                 if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
338                         /* 1 = signal off */
339                         new_gpio = old_gpio | GPIO_MUTE_CONTROL;
340                         /* smuting DAC */
341                         snd_akm4xxx_write(ice->akm, 0, 0x01, 0x03);
342                 } else
343                         /* 0 = signal off */
344                         new_gpio =  old_gpio &
345                                 ~((unsigned int) kcontrol->private_value);
346         }
347         /* printk(KERN_DEBUG
348                 "JULI - mute/unmute: control_value: 0x%x, old_gpio: 0x%x, "
349                 "new_gpio 0x%x\n",
350                 (unsigned int)ucontrol->value.integer.value[0], old_gpio,
351                 new_gpio); */
352         if (old_gpio != new_gpio) {
353                 ice->gpio.set_data(ice, new_gpio);
354                 return 1;
355         }
356         /* no change */
357         return 0;
358 }
359 
360 static struct snd_kcontrol_new juli_mute_controls[] = {
361         {
362                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
363                 .name = "Master Playback Switch",
364                 .info = juli_mute_info,
365                 .get = juli_mute_get,
366                 .put = juli_mute_put,
367                 .private_value = GPIO_MUTE_CONTROL,
368         },
369         /* Although the following functionality respects the succint NDA'd
370          * documentation from the card manufacturer, and the same way of
371          * operation is coded in OSS Juli driver, only Digital Out monitor
372          * seems to work. Surprisingly, Analog input monitor outputs Digital
373          * output data. The two are independent, as enabling both doubles
374          * volume of the monitor sound.
375          *
376          * Checking traces on the board suggests the functionality described
377          * by the manufacturer is correct - I2S from ADC and AK4114
378          * go to ICE as well as to Xilinx, I2S inputs of DAC2,3,4 (the monitor
379          * inputs) are fed from Xilinx.
380          *
381          * I even checked traces on board and coded a support in driver for
382          * an alternative possibility - the unused I2S ICE output channels
383          * switched to HW-IN/SPDIF-IN and providing the monitoring signal to
384          * the DAC - to no avail. The I2S outputs seem to be unconnected.
385          *
386          * The windows driver supports the monitoring correctly.
387          */
388         {
389                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
390                 .name = "Monitor Analog In Switch",
391                 .info = juli_mute_info,
392                 .get = juli_mute_get,
393                 .put = juli_mute_put,
394                 .private_value = GPIO_ANAIN_MONITOR,
395         },
396         {
397                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
398                 .name = "Monitor Digital Out Switch",
399                 .info = juli_mute_info,
400                 .get = juli_mute_get,
401                 .put = juli_mute_put,
402                 .private_value = GPIO_DIGOUT_MONITOR,
403         },
404         {
405                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
406                 .name = "Monitor Digital In Switch",
407                 .info = juli_mute_info,
408                 .get = juli_mute_get,
409                 .put = juli_mute_put,
410                 .private_value = GPIO_DIGIN_MONITOR,
411         },
412 };
413 
414 static char *slave_vols[] = {
415         PCM_VOLUME,
416         MONITOR_AN_IN_VOLUME,
417         MONITOR_DIG_IN_VOLUME,
418         MONITOR_DIG_OUT_VOLUME,
419         NULL
420 };
421 
422 static
423 DECLARE_TLV_DB_SCALE(juli_master_db_scale, -6350, 50, 1);
424 
425 static struct snd_kcontrol *ctl_find(struct snd_card *card,
426                                      const char *name)
427 {
428         struct snd_ctl_elem_id sid;
429         memset(&sid, 0, sizeof(sid));
430         /* FIXME: strcpy is bad. */
431         strcpy(sid.name, 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                 /* printk(KERN_DEBUG "add_slaves - %s\n", *list); */
443                 if (slave) {
444                         /* printk(KERN_DEBUG "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         err = snd_ak4114_build(spec->ak4114, NULL,
479                         ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
480         if (err < 0)
481                 return err;
482         return 0;
483 }
484 
485 /*
486  * suspend/resume
487  * */
488 
489 #ifdef CONFIG_PM_SLEEP
490 static int juli_resume(struct snd_ice1712 *ice)
491 {
492         struct snd_akm4xxx *ak = ice->akm;
493         struct juli_spec *spec = ice->spec;
494         /* akm4358 un-reset, un-mute */
495         snd_akm4xxx_reset(ak, 0);
496         /* reinit ak4114 */
497         snd_ak4114_reinit(spec->ak4114);
498         return 0;
499 }
500 
501 static int juli_suspend(struct snd_ice1712 *ice)
502 {
503         struct snd_akm4xxx *ak = ice->akm;
504         /* akm4358 reset and soft-mute */
505         snd_akm4xxx_reset(ak, 1);
506         return 0;
507 }
508 #endif
509 
510 /*
511  * initialize the chip
512  */
513 
514 static inline int juli_is_spdif_master(struct snd_ice1712 *ice)
515 {
516         return (ice->gpio.get_data(ice) & GPIO_INTERNAL_CLOCK) ? 0 : 1;
517 }
518 
519 static unsigned int juli_get_rate(struct snd_ice1712 *ice)
520 {
521         int i;
522         unsigned char result;
523 
524         result =  ice->gpio.get_data(ice) & GPIO_RATE_MASK;
525         for (i = 0; i < ARRAY_SIZE(gpio_vals); i++)
526                 if (gpio_vals[i] == result)
527                         return juli_rates[i];
528         return 0;
529 }
530 
531 /* setting new rate */
532 static void juli_set_rate(struct snd_ice1712 *ice, unsigned int rate)
533 {
534         unsigned int old, new;
535         unsigned char val;
536 
537         old = ice->gpio.get_data(ice);
538         new =  (old & ~GPIO_RATE_MASK) | get_gpio_val(rate);
539         /* printk(KERN_DEBUG "JULI - set_rate: old %x, new %x\n",
540                         old & GPIO_RATE_MASK,
541                         new & GPIO_RATE_MASK); */
542 
543         ice->gpio.set_data(ice, new);
544         /* switching to external clock - supplied by external circuits */
545         val = inb(ICEMT1724(ice, RATE));
546         outb(val | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
547 }
548 
549 static inline unsigned char juli_set_mclk(struct snd_ice1712 *ice,
550                                           unsigned int rate)
551 {
552         /* no change in master clock */
553         return 0;
554 }
555 
556 /* setting clock to external - SPDIF */
557 static int juli_set_spdif_clock(struct snd_ice1712 *ice, int type)
558 {
559         unsigned int old;
560         old = ice->gpio.get_data(ice);
561         /* external clock (= 0), multiply 1x, 48kHz */
562         ice->gpio.set_data(ice, (old & ~GPIO_RATE_MASK) | GPIO_MULTI_1X |
563                         GPIO_FREQ_48KHZ);
564         return 0;
565 }
566 
567 /* Called when ak4114 detects change in the input SPDIF stream */
568 static void juli_ak4114_change(struct ak4114 *ak4114, unsigned char c0,
569                                unsigned char c1)
570 {
571         struct snd_ice1712 *ice = ak4114->change_callback_private;
572         int rate;
573         if (ice->is_spdif_master(ice) && c1) {
574                 /* only for SPDIF master mode, rate was changed */
575                 rate = snd_ak4114_external_rate(ak4114);
576                 /* printk(KERN_DEBUG "ak4114 - input rate changed to %d\n",
577                                 rate); */
578                 juli_akm_set_rate_val(ice->akm, rate);
579         }
580 }
581 
582 static int juli_init(struct snd_ice1712 *ice)
583 {
584         static const unsigned char ak4114_init_vals[] = {
585                 /* AK4117_REG_PWRDN */  AK4114_RST | AK4114_PWN |
586                                         AK4114_OCKS0 | AK4114_OCKS1,
587                 /* AK4114_REQ_FORMAT */ AK4114_DIF_I24I2S,
588                 /* AK4114_REG_IO0 */    AK4114_TX1E,
589                 /* AK4114_REG_IO1 */    AK4114_EFH_1024 | AK4114_DIT |
590                                         AK4114_IPS(1),
591                 /* AK4114_REG_INT0_MASK */ 0,
592                 /* AK4114_REG_INT1_MASK */ 0
593         };
594         static const unsigned char ak4114_init_txcsb[] = {
595                 0x41, 0x02, 0x2c, 0x00, 0x00
596         };
597         int err;
598         struct juli_spec *spec;
599         struct snd_akm4xxx *ak;
600 
601         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
602         if (!spec)
603                 return -ENOMEM;
604         ice->spec = spec;
605 
606         err = snd_ak4114_create(ice->card,
607                                 juli_ak4114_read,
608                                 juli_ak4114_write,
609                                 ak4114_init_vals, ak4114_init_txcsb,
610                                 ice, &spec->ak4114);
611         if (err < 0)
612                 return err;
613         /* callback for codecs rate setting */
614         spec->ak4114->change_callback = juli_ak4114_change;
615         spec->ak4114->change_callback_private = ice;
616         /* AK4114 in Juli can detect external rate correctly */
617         spec->ak4114->check_flags = 0;
618 
619 #if 0
620 /*
621  * it seems that the analog doughter board detection does not work reliably, so
622  * force the analog flag; it should be very rare (if ever) to come at Juli@
623  * used without the analog daughter board
624  */
625         spec->analog = (ice->gpio.get_data(ice) & GPIO_ANALOG_PRESENT) ? 0 : 1;
626 #else
627         spec->analog = 1;
628 #endif
629 
630         if (spec->analog) {
631                 printk(KERN_INFO "juli@: analog I/O detected\n");
632                 ice->num_total_dacs = 2;
633                 ice->num_total_adcs = 2;
634 
635                 ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
636                 ak = ice->akm;
637                 if (!ak)
638                         return -ENOMEM;
639                 ice->akm_codecs = 1;
640                 err = snd_ice1712_akm4xxx_init(ak, &akm_juli_dac, NULL, ice);
641                 if (err < 0)
642                         return err;
643         }
644 
645         /* juli is clocked by Xilinx array */
646         ice->hw_rates = &juli_rates_info;
647         ice->is_spdif_master = juli_is_spdif_master;
648         ice->get_rate = juli_get_rate;
649         ice->set_rate = juli_set_rate;
650         ice->set_mclk = juli_set_mclk;
651         ice->set_spdif_clock = juli_set_spdif_clock;
652 
653         ice->spdif.ops.open = juli_spdif_in_open;
654 
655 #ifdef CONFIG_PM_SLEEP
656         ice->pm_resume = juli_resume;
657         ice->pm_suspend = juli_suspend;
658         ice->pm_suspend_enabled = 1;
659 #endif
660 
661         return 0;
662 }
663 
664 
665 /*
666  * Juli@ boards don't provide the EEPROM data except for the vendor IDs.
667  * hence the driver needs to sets up it properly.
668  */
669 
670 static unsigned char juli_eeprom[] = {
671         [ICE_EEP2_SYSCONF]     = 0x2b,  /* clock 512, mpu401, 1xADC, 1xDACs,
672                                            SPDIF in */
673         [ICE_EEP2_ACLINK]      = 0x80,  /* I2S */
674         [ICE_EEP2_I2S]         = 0xf8,  /* vol, 96k, 24bit, 192k */
675         [ICE_EEP2_SPDIF]       = 0xc3,  /* out-en, out-int, spdif-in */
676         [ICE_EEP2_GPIO_DIR]    = 0x9f,  /* 5, 6:inputs; 7, 4-0 outputs*/
677         [ICE_EEP2_GPIO_DIR1]   = 0xff,
678         [ICE_EEP2_GPIO_DIR2]   = 0x7f,
679         [ICE_EEP2_GPIO_MASK]   = 0x60,  /* 5, 6: locked; 7, 4-0 writable */
680         [ICE_EEP2_GPIO_MASK1]  = 0x00,  /* 0-7 writable */
681         [ICE_EEP2_GPIO_MASK2]  = 0x7f,
682         [ICE_EEP2_GPIO_STATE]  = GPIO_FREQ_48KHZ | GPIO_MULTI_1X |
683                GPIO_INTERNAL_CLOCK,     /* internal clock, multiple 1x, 48kHz*/
684         [ICE_EEP2_GPIO_STATE1] = 0x00,  /* unmuted */
685         [ICE_EEP2_GPIO_STATE2] = 0x00,
686 };
687 
688 /* entry point */
689 struct snd_ice1712_card_info snd_vt1724_juli_cards[] = {
690         {
691                 .subvendor = VT1724_SUBDEVICE_JULI,
692                 .name = "ESI Juli@",
693                 .model = "juli",
694                 .chip_init = juli_init,
695                 .build_controls = juli_add_controls,
696                 .eeprom_size = sizeof(juli_eeprom),
697                 .eeprom_data = juli_eeprom,
698         },
699         { } /* terminator */
700 };
701 

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