sound/pci/ice1712/juli.c

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
get_gpio_val
juli_ak4114_write
juli_ak4114_read
juli_spdif_in_open
juli_akm_lock
juli_akm_unlock
juli_akm_write
juli_akm_set_rate_val
juli_mute_get
juli_mute_put
ctl_find
add_slaves
juli_add_controls
juli_resume
juli_suspend
juli_is_spdif_master
juli_get_rate
juli_set_rate
juli_set_mclk
juli_set_spdif_clock
juli_ak4114_change
juli_init
   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 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 char *slave_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 struct snd_kcontrol *ctl_find(struct snd_card *card,
 412                                      const char *name)
 413 {
 414         struct snd_ctl_elem_id sid = {0};
 415 
 416         strlcpy(sid.name, name, sizeof(sid.name));
 417         sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 418         return snd_ctl_find_id(card, &sid);
 419 }
 420 
 421 static void add_slaves(struct snd_card *card,
 422                        struct snd_kcontrol *master,
 423                        char * const *list)
 424 {
 425         for (; *list; list++) {
 426                 struct snd_kcontrol *slave = ctl_find(card, *list);
 427                 /* dev_dbg(card->dev, "add_slaves - %s\n", *list); */
 428                 if (slave) {
 429                         /* dev_dbg(card->dev, "slave %s found\n", *list); */
 430                         snd_ctl_add_slave(master, slave);
 431                 }
 432         }
 433 }
 434 
 435 static int juli_add_controls(struct snd_ice1712 *ice)
 436 {
 437         struct juli_spec *spec = ice->spec;
 438         int err;
 439         unsigned int i;
 440         struct snd_kcontrol *vmaster;
 441 
 442         err = snd_ice1712_akm4xxx_build_controls(ice);
 443         if (err < 0)
 444                 return err;
 445 
 446         for (i = 0; i < ARRAY_SIZE(juli_mute_controls); i++) {
 447                 err = snd_ctl_add(ice->card,
 448                                 snd_ctl_new1(&juli_mute_controls[i], ice));
 449                 if (err < 0)
 450                         return err;
 451         }
 452         /* Create virtual master control */
 453         vmaster = snd_ctl_make_virtual_master("Master Playback Volume",
 454                                               juli_master_db_scale);
 455         if (!vmaster)
 456                 return -ENOMEM;
 457         add_slaves(ice->card, vmaster, slave_vols);
 458         err = snd_ctl_add(ice->card, vmaster);
 459         if (err < 0)
 460                 return err;
 461 
 462         /* only capture SPDIF over AK4114 */
 463         return snd_ak4114_build(spec->ak4114, NULL,
 464                         ice->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);
 465 }
 466 
 467 /*
 468  * suspend/resume
 469  * */
 470 
 471 #ifdef CONFIG_PM_SLEEP
 472 static int juli_resume(struct snd_ice1712 *ice)
 473 {
 474         struct snd_akm4xxx *ak = ice->akm;
 475         struct juli_spec *spec = ice->spec;
 476         /* akm4358 un-reset, un-mute */
 477         snd_akm4xxx_reset(ak, 0);
 478         /* reinit ak4114 */
 479         snd_ak4114_resume(spec->ak4114);
 480         return 0;
 481 }
 482 
 483 static int juli_suspend(struct snd_ice1712 *ice)
 484 {
 485         struct snd_akm4xxx *ak = ice->akm;
 486         struct juli_spec *spec = ice->spec;
 487         /* akm4358 reset and soft-mute */
 488         snd_akm4xxx_reset(ak, 1);
 489         snd_ak4114_suspend(spec->ak4114);
 490         return 0;
 491 }
 492 #endif
 493 
 494 /*
 495  * initialize the chip
 496  */
 497 
 498 static inline int juli_is_spdif_master(struct snd_ice1712 *ice)
 499 {
 500         return (ice->gpio.get_data(ice) & GPIO_INTERNAL_CLOCK) ? 0 : 1;
 501 }
 502 
 503 static unsigned int juli_get_rate(struct snd_ice1712 *ice)
 504 {
 505         int i;
 506         unsigned char result;
 507 
 508         result =  ice->gpio.get_data(ice) & GPIO_RATE_MASK;
 509         for (i = 0; i < ARRAY_SIZE(gpio_vals); i++)
 510                 if (gpio_vals[i] == result)
 511                         return juli_rates[i];
 512         return 0;
 513 }
 514 
 515 /* setting new rate */
 516 static void juli_set_rate(struct snd_ice1712 *ice, unsigned int rate)
 517 {
 518         unsigned int old, new;
 519         unsigned char val;
 520 
 521         old = ice->gpio.get_data(ice);
 522         new =  (old & ~GPIO_RATE_MASK) | get_gpio_val(rate);
 523         /* dev_dbg(ice->card->dev, "JULI - set_rate: old %x, new %x\n",
 524                         old & GPIO_RATE_MASK,
 525                         new & GPIO_RATE_MASK); */
 526 
 527         ice->gpio.set_data(ice, new);
 528         /* switching to external clock - supplied by external circuits */
 529         val = inb(ICEMT1724(ice, RATE));
 530         outb(val | VT1724_SPDIF_MASTER, ICEMT1724(ice, RATE));
 531 }
 532 
 533 static inline unsigned char juli_set_mclk(struct snd_ice1712 *ice,
 534                                           unsigned int rate)
 535 {
 536         /* no change in master clock */
 537         return 0;
 538 }
 539 
 540 /* setting clock to external - SPDIF */
 541 static int juli_set_spdif_clock(struct snd_ice1712 *ice, int type)
 542 {
 543         unsigned int old;
 544         old = ice->gpio.get_data(ice);
 545         /* external clock (= 0), multiply 1x, 48kHz */
 546         ice->gpio.set_data(ice, (old & ~GPIO_RATE_MASK) | GPIO_MULTI_1X |
 547                         GPIO_FREQ_48KHZ);
 548         return 0;
 549 }
 550 
 551 /* Called when ak4114 detects change in the input SPDIF stream */
 552 static void juli_ak4114_change(struct ak4114 *ak4114, unsigned char c0,
 553                                unsigned char c1)
 554 {
 555         struct snd_ice1712 *ice = ak4114->change_callback_private;
 556         int rate;
 557         if (ice->is_spdif_master(ice) && c1) {
 558                 /* only for SPDIF master mode, rate was changed */
 559                 rate = snd_ak4114_external_rate(ak4114);
 560                 /* dev_dbg(ice->card->dev, "ak4114 - input rate changed to %d\n",
 561                                 rate); */
 562                 juli_akm_set_rate_val(ice->akm, rate);
 563         }
 564 }
 565 
 566 static int juli_init(struct snd_ice1712 *ice)
 567 {
 568         static const unsigned char ak4114_init_vals[] = {
 569                 /* AK4117_REG_PWRDN */  AK4114_RST | AK4114_PWN |
 570                                         AK4114_OCKS0 | AK4114_OCKS1,
 571                 /* AK4114_REQ_FORMAT */ AK4114_DIF_I24I2S,
 572                 /* AK4114_REG_IO0 */    AK4114_TX1E,
 573                 /* AK4114_REG_IO1 */    AK4114_EFH_1024 | AK4114_DIT |
 574                                         AK4114_IPS(1),
 575                 /* AK4114_REG_INT0_MASK */ 0,
 576                 /* AK4114_REG_INT1_MASK */ 0
 577         };
 578         static const unsigned char ak4114_init_txcsb[] = {
 579                 0x41, 0x02, 0x2c, 0x00, 0x00
 580         };
 581         int err;
 582         struct juli_spec *spec;
 583         struct snd_akm4xxx *ak;
 584 
 585         spec = kzalloc(sizeof(*spec), GFP_KERNEL);
 586         if (!spec)
 587                 return -ENOMEM;
 588         ice->spec = spec;
 589 
 590         err = snd_ak4114_create(ice->card,
 591                                 juli_ak4114_read,
 592                                 juli_ak4114_write,
 593                                 ak4114_init_vals, ak4114_init_txcsb,
 594                                 ice, &spec->ak4114);
 595         if (err < 0)
 596                 return err;
 597         /* callback for codecs rate setting */
 598         spec->ak4114->change_callback = juli_ak4114_change;
 599         spec->ak4114->change_callback_private = ice;
 600         /* AK4114 in Juli can detect external rate correctly */
 601         spec->ak4114->check_flags = 0;
 602 
 603 #if 0
 604 /*
 605  * it seems that the analog doughter board detection does not work reliably, so
 606  * force the analog flag; it should be very rare (if ever) to come at Juli@
 607  * used without the analog daughter board
 608  */
 609         spec->analog = (ice->gpio.get_data(ice) & GPIO_ANALOG_PRESENT) ? 0 : 1;
 610 #else
 611         spec->analog = 1;
 612 #endif
 613 
 614         if (spec->analog) {
 615                 dev_info(ice->card->dev, "juli@: analog I/O detected\n");
 616                 ice->num_total_dacs = 2;
 617                 ice->num_total_adcs = 2;
 618 
 619                 ice->akm = kzalloc(sizeof(struct snd_akm4xxx), GFP_KERNEL);
 620                 ak = ice->akm;
 621                 if (!ak)
 622                         return -ENOMEM;
 623                 ice->akm_codecs = 1;
 624                 err = snd_ice1712_akm4xxx_init(ak, &akm_juli_dac, NULL, ice);
 625                 if (err < 0)
 626                         return err;
 627         }
 628 
 629         /* juli is clocked by Xilinx array */
 630         ice->hw_rates = &juli_rates_info;
 631         ice->is_spdif_master = juli_is_spdif_master;
 632         ice->get_rate = juli_get_rate;
 633         ice->set_rate = juli_set_rate;
 634         ice->set_mclk = juli_set_mclk;
 635         ice->set_spdif_clock = juli_set_spdif_clock;
 636 
 637         ice->spdif.ops.open = juli_spdif_in_open;
 638 
 639 #ifdef CONFIG_PM_SLEEP
 640         ice->pm_resume = juli_resume;
 641         ice->pm_suspend = juli_suspend;
 642         ice->pm_suspend_enabled = 1;
 643 #endif
 644 
 645         return 0;
 646 }
 647 
 648 
 649 /*
 650  * Juli@ boards don't provide the EEPROM data except for the vendor IDs.
 651  * hence the driver needs to sets up it properly.
 652  */
 653 
 654 static unsigned char juli_eeprom[] = {
 655         [ICE_EEP2_SYSCONF]     = 0x2b,  /* clock 512, mpu401, 1xADC, 1xDACs,
 656                                            SPDIF in */
 657         [ICE_EEP2_ACLINK]      = 0x80,  /* I2S */
 658         [ICE_EEP2_I2S]         = 0xf8,  /* vol, 96k, 24bit, 192k */
 659         [ICE_EEP2_SPDIF]       = 0xc3,  /* out-en, out-int, spdif-in */
 660         [ICE_EEP2_GPIO_DIR]    = 0x9f,  /* 5, 6:inputs; 7, 4-0 outputs*/
 661         [ICE_EEP2_GPIO_DIR1]   = 0xff,
 662         [ICE_EEP2_GPIO_DIR2]   = 0x7f,
 663         [ICE_EEP2_GPIO_MASK]   = 0x60,  /* 5, 6: locked; 7, 4-0 writable */
 664         [ICE_EEP2_GPIO_MASK1]  = 0x00,  /* 0-7 writable */
 665         [ICE_EEP2_GPIO_MASK2]  = 0x7f,
 666         [ICE_EEP2_GPIO_STATE]  = GPIO_FREQ_48KHZ | GPIO_MULTI_1X |
 667                GPIO_INTERNAL_CLOCK,     /* internal clock, multiple 1x, 48kHz*/
 668         [ICE_EEP2_GPIO_STATE1] = 0x00,  /* unmuted */
 669         [ICE_EEP2_GPIO_STATE2] = 0x00,
 670 };
 671 
 672 /* entry point */
 673 struct snd_ice1712_card_info snd_vt1724_juli_cards[] = {
 674         {
 675                 .subvendor = VT1724_SUBDEVICE_JULI,
 676                 .name = "ESI Juli@",
 677                 .model = "juli",
 678                 .chip_init = juli_init,
 679                 .build_controls = juli_add_controls,
 680                 .eeprom_size = sizeof(juli_eeprom),
 681                 .eeprom_data = juli_eeprom,
 682         },
 683         { } /* terminator */
 684 };
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root/sound/pci/ice1712/juli.c

DEFINITIONS
