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 <asm/io.h>
  27#include <linux/delay.h>
  28#include <linux/interrupt.h>
  29#include <linux/init.h>
  30#include <linux/slab.h>
  31#include <sound/core.h>
  32#include <sound/tlv.h>
  33
  34#include "ice1712.h"
  35#include "envy24ht.h"
  36#include "juli.h"
  37
  38struct juli_spec {
  39        struct ak4114 *ak4114;
  40        unsigned int analog:1;
  41};
  42
  43/*
  44 * chip addresses on I2C bus
  45 */
  46#define AK4114_ADDR             0x20            /* S/PDIF receiver */
  47#define AK4358_ADDR             0x22            /* DAC */
  48
  49/*
  50 * Juli does not use the standard ICE1724 clock scheme. Juli's ice1724 chip is
  51 * supplied by external clock provided by Xilinx array and MK73-1 PLL frequency
  52 * multiplier. Actual frequency is set by ice1724 GPIOs hooked to the Xilinx.
  53 *
  54 * The clock circuitry is supplied by the two ice1724 crystals. This
  55 * arrangement allows to generate independent clock signal for AK4114's input
  56 * rate detection circuit. As a result, Juli, unlike most other
  57 * ice1724+ak4114-based cards, detects spdif input rate correctly.
  58 * This fact is applied in the driver, allowing to modify PCM stream rate
  59 * parameter according to the actual input rate.
  60 *
  61 * Juli uses the remaining three stereo-channels of its DAC to optionally
  62 * monitor analog input, digital input, and digital output. The corresponding
  63 * I2S signals are routed by Xilinx, controlled by GPIOs.
  64 *
  65 * The master mute is implemented using output muting transistors (GPIO) in
  66 * combination with smuting the DAC.
  67 *
  68 * The card itself has no HW master volume control, implemented using the
  69 * vmaster control.
  70 *
  71 * TODO:
  72 * researching and fixing the input monitors
  73 */
  74
  75/*
  76 * GPIO pins
  77 */
  78#define GPIO_FREQ_MASK          (3<<0)
  79#define GPIO_FREQ_32KHZ         (0<<0)
  80#define GPIO_FREQ_44KHZ         (1<<0)
  81#define GPIO_FREQ_48KHZ         (2<<0)
  82#define GPIO_MULTI_MASK         (3<<2)
  83#define GPIO_MULTI_4X           (0<<2)
  84#define GPIO_MULTI_2X           (1<<2)
  85#define GPIO_MULTI_1X           (2<<2)          /* also external */
  86#define GPIO_MULTI_HALF         (3<<2)
  87#define GPIO_INTERNAL_CLOCK     (1<<4)          /* 0 = external, 1 = internal */
  88#define GPIO_CLOCK_MASK         (1<<4)
  89#define GPIO_ANALOG_PRESENT     (1<<5)          /* RO only: 0 = present */
  90#define GPIO_RXMCLK_SEL         (1<<7)          /* must be 0 */
  91#define GPIO_AK5385A_CKS0       (1<<8)
  92#define GPIO_AK5385A_DFS1       (1<<9)
  93#define GPIO_AK5385A_DFS0       (1<<10)
  94#define GPIO_DIGOUT_MONITOR     (1<<11)         /* 1 = active */
  95#define GPIO_DIGIN_MONITOR      (1<<12)         /* 1 = active */
  96#define GPIO_ANAIN_MONITOR      (1<<13)         /* 1 = active */
  97#define GPIO_AK5385A_CKS1       (1<<14)         /* must be 0 */
  98#define GPIO_MUTE_CONTROL       (1<<15)         /* output mute, 1 = muted */
  99
 100#define GPIO_RATE_MASK          (GPIO_FREQ_MASK | GPIO_MULTI_MASK | \
 101                GPIO_CLOCK_MASK)
 102#define GPIO_AK5385A_MASK       (GPIO_AK5385A_CKS0 | GPIO_AK5385A_DFS0 | \
 103                GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS1)
 104
 105#define JULI_PCM_RATE   (SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
 106                SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
 107                SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | \
 108                SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \
 109                SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)
 110
 111#define GPIO_RATE_16000         (GPIO_FREQ_32KHZ | GPIO_MULTI_HALF | \
 112                GPIO_INTERNAL_CLOCK)
 113#define GPIO_RATE_22050         (GPIO_FREQ_44KHZ | GPIO_MULTI_HALF | \
 114                GPIO_INTERNAL_CLOCK)
 115#define GPIO_RATE_24000         (GPIO_FREQ_48KHZ | GPIO_MULTI_HALF | \
 116                GPIO_INTERNAL_CLOCK)
 117#define GPIO_RATE_32000         (GPIO_FREQ_32KHZ | GPIO_MULTI_1X | \
 118                GPIO_INTERNAL_CLOCK)
 119#define GPIO_RATE_44100         (GPIO_FREQ_44KHZ | GPIO_MULTI_1X | \
 120                GPIO_INTERNAL_CLOCK)
 121#define GPIO_RATE_48000         (GPIO_FREQ_48KHZ | GPIO_MULTI_1X | \
 122                GPIO_INTERNAL_CLOCK)
 123#define GPIO_RATE_64000         (GPIO_FREQ_32KHZ | GPIO_MULTI_2X | \
 124                GPIO_INTERNAL_CLOCK)
 125#define GPIO_RATE_88200         (GPIO_FREQ_44KHZ | GPIO_MULTI_2X | \
 126                GPIO_INTERNAL_CLOCK)
 127#define GPIO_RATE_96000         (GPIO_FREQ_48KHZ | GPIO_MULTI_2X | \
 128                GPIO_INTERNAL_CLOCK)
 129#define GPIO_RATE_176400        (GPIO_FREQ_44KHZ | GPIO_MULTI_4X | \
 130                GPIO_INTERNAL_CLOCK)
 131#define GPIO_RATE_192000        (GPIO_FREQ_48KHZ | GPIO_MULTI_4X | \
 132                GPIO_INTERNAL_CLOCK)
 133
 134/*
 135 * Initial setup of the conversion array GPIO <-> rate
 136 */
 137static unsigned int juli_rates[] = {
 138        16000, 22050, 24000, 32000,
 139        44100, 48000, 64000, 88200,
 140        96000, 176400, 192000,
 141};
 142
 143static unsigned int gpio_vals[] = {
 144        GPIO_RATE_16000, GPIO_RATE_22050, GPIO_RATE_24000, GPIO_RATE_32000,
 145        GPIO_RATE_44100, GPIO_RATE_48000, GPIO_RATE_64000, GPIO_RATE_88200,
 146        GPIO_RATE_96000, GPIO_RATE_176400, GPIO_RATE_192000,
 147};
 148
 149static struct snd_pcm_hw_constraint_list juli_rates_info = {
 150        .count = ARRAY_SIZE(juli_rates),
 151        .list = juli_rates,
 152        .mask = 0,
 153};
 154
 155static int get_gpio_val(int rate)
 156{
 157        int i;
 158        for (i = 0; i < ARRAY_SIZE(juli_rates); i++)
 159                if (juli_rates[i] == rate)
 160                        return gpio_vals[i];
 161        return 0;
 162}
 163
 164static void juli_ak4114_write(void *private_data, unsigned char reg,
 165                                unsigned char val)
 166{
 167        snd_vt1724_write_i2c((struct snd_ice1712 *)private_data, AK4114_ADDR,
 168                                reg, val);
 169}
 170
 171static unsigned char juli_ak4114_read(void *private_data, unsigned char reg)
 172{
 173        return snd_vt1724_read_i2c((struct snd_ice1712 *)private_data,
 174                                        AK4114_ADDR, reg);
 175}
 176
 177/*
 178 * If SPDIF capture and slaved to SPDIF-IN, setting runtime rate
 179 * to the external rate
 180 */
 181static void juli_spdif_in_open(struct snd_ice1712 *ice,
 182                                struct snd_pcm_substream *substream)
 183{
 184        struct juli_spec *spec = ice->spec;
 185        struct snd_pcm_runtime *runtime = substream->runtime;
 186        int rate;
 187
 188        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
 189                        !ice->is_spdif_master(ice))
 190                return;
 191        rate = snd_ak4114_external_rate(spec->ak4114);
 192        if (rate >= runtime->hw.rate_min && rate <= runtime->hw.rate_max) {
 193                runtime->hw.rate_min = rate;
 194                runtime->hw.rate_max = rate;
 195        }
 196}
 197
 198/*
 199 * AK4358 section
 200 */
 201
 202static void juli_akm_lock(struct snd_akm4xxx *ak, int chip)
 203{
 204}
 205
 206static void juli_akm_unlock(struct snd_akm4xxx *ak, int chip)
 207{
 208}
 209
 210static void juli_akm_write(struct snd_akm4xxx *ak, int chip,
 211                           unsigned char addr, unsigned char data)
 212{
 213        struct snd_ice1712 *ice = ak->private_data[0];
 214         
 215        if (snd_BUG_ON(chip))
 216                return;
 217        snd_vt1724_write_i2c(ice, AK4358_ADDR, addr, data);
 218}
 219
 220/*
 221 * change the rate of envy24HT, AK4358, AK5385
 222 */
 223static void juli_akm_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
 224{
 225        unsigned char old, tmp, ak4358_dfs;
 226        unsigned int ak5385_pins, old_gpio, new_gpio;
 227        struct snd_ice1712 *ice = ak->private_data[0];
 228        struct juli_spec *spec = ice->spec;
 229
 230        if (rate == 0)  /* no hint - S/PDIF input is master or the new spdif
 231                           input rate undetected, simply return */
 232                return;
 233
 234        /* adjust DFS on codecs */
 235        if (rate > 96000)  {
 236                ak4358_dfs = 2;
 237                ak5385_pins = GPIO_AK5385A_DFS1 | GPIO_AK5385A_CKS0;
 238        } else if (rate > 48000) {
 239                ak4358_dfs = 1;
 240                ak5385_pins = GPIO_AK5385A_DFS0;
 241        } else {
 242                ak4358_dfs = 0;
 243                ak5385_pins = 0;
 244        }
 245        /* AK5385 first, since it requires cold reset affecting both codecs */
 246        old_gpio = ice->gpio.get_data(ice);
 247        new_gpio =  (old_gpio & ~GPIO_AK5385A_MASK) | ak5385_pins;
 248        /* printk(KERN_DEBUG "JULI - ak5385 set_rate_val: new gpio 0x%x\n",
 249                new_gpio); */
 250        ice->gpio.set_data(ice, new_gpio);
 251
 252        /* cold reset */
 253        old = inb(ICEMT1724(ice, AC97_CMD));
 254        outb(old | VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
 255        udelay(1);
 256        outb(old & ~VT1724_AC97_COLD, ICEMT1724(ice, AC97_CMD));
 257
 258        /* AK4358 */
 259        /* set new value, reset DFS */
 260        tmp = snd_akm4xxx_get(ak, 0, 2);
 261        snd_akm4xxx_reset(ak, 1);
 262        tmp = snd_akm4xxx_get(ak, 0, 2);
 263        tmp &= ~(0x03 << 4);
 264        tmp |= ak4358_dfs << 4;
 265        snd_akm4xxx_set(ak, 0, 2, tmp);
 266        snd_akm4xxx_reset(ak, 0);
 267
 268        /* reinit ak4114 */
 269        snd_ak4114_reinit(spec->ak4114);
 270}
 271
 272#define AK_DAC(xname, xch)      { .name = xname, .num_channels = xch }
 273#define PCM_VOLUME              "PCM Playback Volume"
 274#define MONITOR_AN_IN_VOLUME    "Monitor Analog In Volume"
 275#define MONITOR_DIG_IN_VOLUME   "Monitor Digital In Volume"
 276#define MONITOR_DIG_OUT_VOLUME  "Monitor Digital Out Volume"
 277
 278static const struct snd_akm4xxx_dac_channel juli_dac[] = {
 279        AK_DAC(PCM_VOLUME, 2),
 280        AK_DAC(MONITOR_AN_IN_VOLUME, 2),
 281        AK_DAC(MONITOR_DIG_OUT_VOLUME, 2),
 282        AK_DAC(MONITOR_DIG_IN_VOLUME, 2),
 283};
 284
 285
 286static struct snd_akm4xxx akm_juli_dac __devinitdata = {
 287        .type = SND_AK4358,
 288        .num_dacs = 8,  /* DAC1 - analog out
 289                           DAC2 - analog in monitor
 290                           DAC3 - digital out monitor
 291                           DAC4 - digital in monitor
 292                         */
 293        .ops = {
 294                .lock = juli_akm_lock,
 295                .unlock = juli_akm_unlock,
 296                .write = juli_akm_write,
 297                .set_rate_val = juli_akm_set_rate_val
 298        },
 299        .dac_info = juli_dac,
 300};
 301
 302#define juli_mute_info          snd_ctl_boolean_mono_info
 303
 304static int juli_mute_get(struct snd_kcontrol *kcontrol,
 305                struct snd_ctl_elem_value *ucontrol)
 306{
 307        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 308        unsigned int val;
 309        val = ice->gpio.get_data(ice) & (unsigned int) kcontrol->private_value;
 310        if (kcontrol->private_value == GPIO_MUTE_CONTROL)
 311                /* val 0 = signal on */
 312                ucontrol->value.integer.value[0] = (val) ? 0 : 1;
 313        else
 314                /* val 1 = signal on */
 315                ucontrol->value.integer.value[0] = (val) ? 1 : 0;
 316        return 0;
 317}
 318
 319static int juli_mute_put(struct snd_kcontrol *kcontrol,
 320                struct snd_ctl_elem_value *ucontrol)
 321{
 322        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
 323        unsigned int old_gpio, new_gpio;
 324        old_gpio = ice->gpio.get_data(ice);
 325        if (ucontrol->value.integer.value[0]) {
 326                /* unmute */
 327                if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
 328                        /* 0 = signal on */
 329                        new_gpio = old_gpio & ~GPIO_MUTE_CONTROL;
 330                        /* un-smuting DAC */
 331                        snd_akm4xxx_write(ice->akm, 0, 0x01, 0x01);
 332                } else
 333                        /* 1 = signal on */
 334                        new_gpio =  old_gpio |
 335                                (unsigned int) kcontrol->private_value;
 336        } else {
 337                /* mute */
 338                if (kcontrol->private_value == GPIO_MUTE_CONTROL) {
 339                        /* 1 = signal off */
 340                        new_gpio = old_gpio | GPIO_MUTE_CONTROL;
 341                        /* smuting DAC */
 342                        snd_akm4xxx_write(ice->akm, 0, 0x01, 0x03);
 343                } else
 344                        /* 0 = signal off */
 345                        new_gpio =  old_gpio &
 346                                ~((unsigned int) kcontrol->private_value);
 347        }
 348        /* printk(KERN_DEBUG
 349                "JULI - mute/unmute: control_value: 0x%x, old_gpio: 0x%x, "
 350                "new_gpio 0x%x\n",
 351                (unsigned int)ucontrol->value.integer.value[0], old_gpio,
 352                new_gpio); */
 353        if (old_gpio != new_gpio) {
 354                ice->gpio.set_data(ice, new_gpio);
 355                return 1;
 356        }
 357        /* no change */
 358        return 0;
 359}
 360
 361static struct snd_kcontrol_new juli_mute_controls[] __devinitdata = {
 362        {
 363                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 364                .name = "Master Playback Switch",
 365                .info = juli_mute_info,
 366                .get = juli_mute_get,
 367                .put = juli_mute_put,
 368                .private_value = GPIO_MUTE_CONTROL,
 369        },
 370        /* Although the following functionality respects the succint NDA'd
 371         * documentation from the card manufacturer, and the same way of
 372         * operation is coded in OSS Juli driver, only Digital Out monitor
 373         * seems to work. Surprisingly, Analog input monitor outputs Digital
 374         * output data. The two are independent, as enabling both doubles
 375         * volume of the monitor sound.
 376         *
 377         * Checking traces on the board suggests the functionality described
 378         * by the manufacturer is correct - I2S from ADC and AK4114
 379         * go to ICE as well as to Xilinx, I2S inputs of DAC2,3,4 (the monitor
 380         * inputs) are fed from Xilinx.
 381         *
 382         * I even checked traces on board and coded a support in driver for
 383         * an alternative possibility - the unused I2S ICE output channels
 384         * switched to HW-IN/SPDIF-IN and providing the monitoring signal to
 385         * the DAC - to no avail. The I2S outputs seem to be unconnected.
 386         *
 387         * The windows driver supports the monitoring correctly.
 388         */
 389        {
 390                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 391                .name = "Monitor Analog In Switch",
 392                .info = juli_mute_info,
 393                .get = juli_mute_get,
 394                .put = juli_mute_put,
 395                .private_value = GPIO_ANAIN_MONITOR,
 396        },
 397        {
 398                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 399                .name = "Monitor Digital Out Switch",
 400                .info = juli_mute_info,
 401                .get = juli_mute_get,
 402                .put = juli_mute_put,
 403                .private_value = GPIO_DIGOUT_MONITOR,
 404        },
 405        {
 406                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 407                .name = "Monitor Digital In Switch",
 408                .info = juli_mute_info,
 409                .get = juli_mute_get,
 410                .put = juli_mute_put,
 411                .private_value = GPIO_DIGIN_MONITOR,
 412        },
 413};
 414
 415static char *slave_vols[] __devinitdata = {
 416        PCM_VOLUME,
 417        MONITOR_AN_IN_VOLUME,
 418        MONITOR_DIG_IN_VOLUME,
 419        MONITOR_DIG_OUT_VOLUME,
 420        NULL
 421};
 422
 423static __devinitdata
 424DECLARE_TLV_DB_SCALE(juli_master_db_scale, -6350, 50, 1);
 425
 426static struct snd_kcontrol __devinit *ctl_find(struct snd_card *card,
 427                const char *name)
 428{
 429        struct snd_ctl_elem_id sid;
 430        memset(&sid, 0, sizeof(sid));
 431        /* FIXME: strcpy is bad. */
 432        strcpy(sid.name, name);
 433        sid.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 434        return snd_ctl_find_id(card, &sid);
 435}
 436
 437static void __devinit add_slaves(struct snd_card *card,
 438                                 struct snd_kcontrol *master, char **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
 450static int __devinit 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
 490static 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
 501static 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
 514static 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
 519static 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 */
 532static 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
 549static 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 */
 557static 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 */
 568static 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
 582static int __devinit 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
 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
 670static unsigned char juli_eeprom[] __devinitdata = {
 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 */
 689struct snd_ice1712_card_info snd_vt1724_juli_cards[] __devinitdata = {
 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