LXR linux/sound/pci/ice1712/juli.c

   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
  37struct 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 */
 136static const unsigned int juli_rates[] = {
 137        16000, 22050, 24000, 32000,
 138        44100, 48000, 64000, 88200,
 139        96000, 176400, 192000,
 140};
 141
 142static const 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
 148static const struct snd_pcm_hw_constraint_list juli_rates_info = {
 149        .count = ARRAY_SIZE(juli_rates),
 150        .list = juli_rates,
 151        .mask = 0,
 152};
 153
 154static 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
 163static 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
 170static 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 */
 180static 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
 201static void juli_akm_lock(struct snd_akm4xxx *ak, int chip)
 202{
 203}
 204
 205static void juli_akm_unlock(struct snd_akm4xxx *ak, int chip)
 206{
 207}
 208
 209static 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 */
 222static 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        /* dev_dbg(ice->card->dev, "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
 277static 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
 285static 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
 303static 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
 318static 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        /* dev_dbg(ice->card->dev,
 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
 360static 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
 414static 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
 422static
 423DECLARE_TLV_DB_SCALE(juli_master_db_scale, -6350, 50, 1);
 424
 425static 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
 436static 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
 450static 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
 487static 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
 498static 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
 513static 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
 518static 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 */
 531static 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
 548static 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 */
 556static 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 */
 567static 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
 581static 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
 669static 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 */
 688struct 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