linux/sound/pci/es1938.c
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   1/*
   2 *  Driver for ESS Solo-1 (ES1938, ES1946, ES1969) soundcard
   3 *  Copyright (c) by Jaromir Koutek <miri@punknet.cz>,
   4 *                   Jaroslav Kysela <perex@perex.cz>,
   5 *                   Thomas Sailer <sailer@ife.ee.ethz.ch>,
   6 *                   Abramo Bagnara <abramo@alsa-project.org>,
   7 *                   Markus Gruber <gruber@eikon.tum.de>
   8 * 
   9 * Rewritten from sonicvibes.c source.
  10 *
  11 *  TODO:
  12 *    Rewrite better spinlocks
  13 *
  14 *
  15 *   This program is free software; you can redistribute it and/or modify
  16 *   it under the terms of the GNU General Public License as published by
  17 *   the Free Software Foundation; either version 2 of the License, or
  18 *   (at your option) any later version.
  19 *
  20 *   This program is distributed in the hope that it will be useful,
  21 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 *   GNU General Public License for more details.
  24 *
  25 *   You should have received a copy of the GNU General Public License
  26 *   along with this program; if not, write to the Free Software
  27 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  28 *
  29 */
  30
  31/*
  32  NOTES:
  33  - Capture data is written unaligned starting from dma_base + 1 so I need to
  34    disable mmap and to add a copy callback.
  35  - After several cycle of the following:
  36    while : ; do arecord -d1 -f cd -t raw | aplay -f cd ; done
  37    a "playback write error (DMA or IRQ trouble?)" may happen.
  38    This is due to playback interrupts not generated.
  39    I suspect a timing issue.
  40  - Sometimes the interrupt handler is invoked wrongly during playback.
  41    This generates some harmless "Unexpected hw_pointer: wrong interrupt
  42    acknowledge".
  43    I've seen that using small period sizes.
  44    Reproducible with:
  45    mpg123 test.mp3 &
  46    hdparm -t -T /dev/hda
  47*/
  48
  49
  50#include <linux/init.h>
  51#include <linux/interrupt.h>
  52#include <linux/pci.h>
  53#include <linux/slab.h>
  54#include <linux/gameport.h>
  55#include <linux/moduleparam.h>
  56#include <linux/delay.h>
  57#include <linux/dma-mapping.h>
  58#include <sound/core.h>
  59#include <sound/control.h>
  60#include <sound/pcm.h>
  61#include <sound/opl3.h>
  62#include <sound/mpu401.h>
  63#include <sound/initval.h>
  64#include <sound/tlv.h>
  65
  66#include <asm/io.h>
  67
  68MODULE_AUTHOR("Jaromir Koutek <miri@punknet.cz>");
  69MODULE_DESCRIPTION("ESS Solo-1");
  70MODULE_LICENSE("GPL");
  71MODULE_SUPPORTED_DEVICE("{{ESS,ES1938},"
  72                "{ESS,ES1946},"
  73                "{ESS,ES1969},"
  74                "{TerraTec,128i PCI}}");
  75
  76#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
  77#define SUPPORT_JOYSTICK 1
  78#endif
  79
  80static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  81static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  82static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  83
  84module_param_array(index, int, NULL, 0444);
  85MODULE_PARM_DESC(index, "Index value for ESS Solo-1 soundcard.");
  86module_param_array(id, charp, NULL, 0444);
  87MODULE_PARM_DESC(id, "ID string for ESS Solo-1 soundcard.");
  88module_param_array(enable, bool, NULL, 0444);
  89MODULE_PARM_DESC(enable, "Enable ESS Solo-1 soundcard.");
  90
  91#define SLIO_REG(chip, x) ((chip)->io_port + ESSIO_REG_##x)
  92
  93#define SLDM_REG(chip, x) ((chip)->ddma_port + ESSDM_REG_##x)
  94
  95#define SLSB_REG(chip, x) ((chip)->sb_port + ESSSB_REG_##x)
  96
  97#define SL_PCI_LEGACYCONTROL            0x40
  98#define SL_PCI_CONFIG                   0x50
  99#define SL_PCI_DDMACONTROL              0x60
 100
 101#define ESSIO_REG_AUDIO2DMAADDR         0
 102#define ESSIO_REG_AUDIO2DMACOUNT        4
 103#define ESSIO_REG_AUDIO2MODE            6
 104#define ESSIO_REG_IRQCONTROL            7
 105
 106#define ESSDM_REG_DMAADDR               0x00
 107#define ESSDM_REG_DMACOUNT              0x04
 108#define ESSDM_REG_DMACOMMAND            0x08
 109#define ESSDM_REG_DMASTATUS             0x08
 110#define ESSDM_REG_DMAMODE               0x0b
 111#define ESSDM_REG_DMACLEAR              0x0d
 112#define ESSDM_REG_DMAMASK               0x0f
 113
 114#define ESSSB_REG_FMLOWADDR             0x00
 115#define ESSSB_REG_FMHIGHADDR            0x02
 116#define ESSSB_REG_MIXERADDR             0x04
 117#define ESSSB_REG_MIXERDATA             0x05
 118
 119#define ESSSB_IREG_AUDIO1               0x14
 120#define ESSSB_IREG_MICMIX               0x1a
 121#define ESSSB_IREG_RECSRC               0x1c
 122#define ESSSB_IREG_MASTER               0x32
 123#define ESSSB_IREG_FM                   0x36
 124#define ESSSB_IREG_AUXACD               0x38
 125#define ESSSB_IREG_AUXB                 0x3a
 126#define ESSSB_IREG_PCSPEAKER            0x3c
 127#define ESSSB_IREG_LINE                 0x3e
 128#define ESSSB_IREG_SPATCONTROL          0x50
 129#define ESSSB_IREG_SPATLEVEL            0x52
 130#define ESSSB_IREG_MASTER_LEFT          0x60
 131#define ESSSB_IREG_MASTER_RIGHT         0x62
 132#define ESSSB_IREG_MPU401CONTROL        0x64
 133#define ESSSB_IREG_MICMIXRECORD         0x68
 134#define ESSSB_IREG_AUDIO2RECORD         0x69
 135#define ESSSB_IREG_AUXACDRECORD         0x6a
 136#define ESSSB_IREG_FMRECORD             0x6b
 137#define ESSSB_IREG_AUXBRECORD           0x6c
 138#define ESSSB_IREG_MONO                 0x6d
 139#define ESSSB_IREG_LINERECORD           0x6e
 140#define ESSSB_IREG_MONORECORD           0x6f
 141#define ESSSB_IREG_AUDIO2SAMPLE         0x70
 142#define ESSSB_IREG_AUDIO2MODE           0x71
 143#define ESSSB_IREG_AUDIO2FILTER         0x72
 144#define ESSSB_IREG_AUDIO2TCOUNTL        0x74
 145#define ESSSB_IREG_AUDIO2TCOUNTH        0x76
 146#define ESSSB_IREG_AUDIO2CONTROL1       0x78
 147#define ESSSB_IREG_AUDIO2CONTROL2       0x7a
 148#define ESSSB_IREG_AUDIO2               0x7c
 149
 150#define ESSSB_REG_RESET                 0x06
 151
 152#define ESSSB_REG_READDATA              0x0a
 153#define ESSSB_REG_WRITEDATA             0x0c
 154#define ESSSB_REG_READSTATUS            0x0c
 155
 156#define ESSSB_REG_STATUS                0x0e
 157
 158#define ESS_CMD_EXTSAMPLERATE           0xa1
 159#define ESS_CMD_FILTERDIV               0xa2
 160#define ESS_CMD_DMACNTRELOADL           0xa4
 161#define ESS_CMD_DMACNTRELOADH           0xa5
 162#define ESS_CMD_ANALOGCONTROL           0xa8
 163#define ESS_CMD_IRQCONTROL              0xb1
 164#define ESS_CMD_DRQCONTROL              0xb2
 165#define ESS_CMD_RECLEVEL                0xb4
 166#define ESS_CMD_SETFORMAT               0xb6
 167#define ESS_CMD_SETFORMAT2              0xb7
 168#define ESS_CMD_DMACONTROL              0xb8
 169#define ESS_CMD_DMATYPE                 0xb9
 170#define ESS_CMD_OFFSETLEFT              0xba    
 171#define ESS_CMD_OFFSETRIGHT             0xbb
 172#define ESS_CMD_READREG                 0xc0
 173#define ESS_CMD_ENABLEEXT               0xc6
 174#define ESS_CMD_PAUSEDMA                0xd0
 175#define ESS_CMD_ENABLEAUDIO1            0xd1
 176#define ESS_CMD_STOPAUDIO1              0xd3
 177#define ESS_CMD_AUDIO1STATUS            0xd8
 178#define ESS_CMD_CONTDMA                 0xd4
 179#define ESS_CMD_TESTIRQ                 0xf2
 180
 181#define ESS_RECSRC_MIC          0
 182#define ESS_RECSRC_AUXACD       2
 183#define ESS_RECSRC_AUXB         5
 184#define ESS_RECSRC_LINE         6
 185#define ESS_RECSRC_NONE         7
 186
 187#define DAC1 0x01
 188#define ADC1 0x02
 189#define DAC2 0x04
 190
 191/*
 192
 193 */
 194
 195#define SAVED_REG_SIZE  32 /* max. number of registers to save */
 196
 197struct es1938 {
 198        int irq;
 199
 200        unsigned long io_port;
 201        unsigned long sb_port;
 202        unsigned long vc_port;
 203        unsigned long mpu_port;
 204        unsigned long game_port;
 205        unsigned long ddma_port;
 206
 207        unsigned char irqmask;
 208        unsigned char revision;
 209
 210        struct snd_kcontrol *hw_volume;
 211        struct snd_kcontrol *hw_switch;
 212        struct snd_kcontrol *master_volume;
 213        struct snd_kcontrol *master_switch;
 214
 215        struct pci_dev *pci;
 216        struct snd_card *card;
 217        struct snd_pcm *pcm;
 218        struct snd_pcm_substream *capture_substream;
 219        struct snd_pcm_substream *playback1_substream;
 220        struct snd_pcm_substream *playback2_substream;
 221        struct snd_rawmidi *rmidi;
 222
 223        unsigned int dma1_size;
 224        unsigned int dma2_size;
 225        unsigned int dma1_start;
 226        unsigned int dma2_start;
 227        unsigned int dma1_shift;
 228        unsigned int dma2_shift;
 229        unsigned int last_capture_dmaaddr;
 230        unsigned int active;
 231
 232        spinlock_t reg_lock;
 233        spinlock_t mixer_lock;
 234        struct snd_info_entry *proc_entry;
 235
 236#ifdef SUPPORT_JOYSTICK
 237        struct gameport *gameport;
 238#endif
 239#ifdef CONFIG_PM
 240        unsigned char saved_regs[SAVED_REG_SIZE];
 241#endif
 242};
 243
 244static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id);
 245
 246static struct pci_device_id snd_es1938_ids[] = {
 247        { 0x125d, 0x1969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* Solo-1 */
 248        { 0, }
 249};
 250
 251MODULE_DEVICE_TABLE(pci, snd_es1938_ids);
 252
 253#define RESET_LOOP_TIMEOUT      0x10000
 254#define WRITE_LOOP_TIMEOUT      0x10000
 255#define GET_LOOP_TIMEOUT        0x01000
 256
 257#undef REG_DEBUG
 258/* -----------------------------------------------------------------
 259 * Write to a mixer register
 260 * -----------------------------------------------------------------*/
 261static void snd_es1938_mixer_write(struct es1938 *chip, unsigned char reg, unsigned char val)
 262{
 263        unsigned long flags;
 264        spin_lock_irqsave(&chip->mixer_lock, flags);
 265        outb(reg, SLSB_REG(chip, MIXERADDR));
 266        outb(val, SLSB_REG(chip, MIXERDATA));
 267        spin_unlock_irqrestore(&chip->mixer_lock, flags);
 268#ifdef REG_DEBUG
 269        snd_printk(KERN_DEBUG "Mixer reg %02x set to %02x\n", reg, val);
 270#endif
 271}
 272
 273/* -----------------------------------------------------------------
 274 * Read from a mixer register
 275 * -----------------------------------------------------------------*/
 276static int snd_es1938_mixer_read(struct es1938 *chip, unsigned char reg)
 277{
 278        int data;
 279        unsigned long flags;
 280        spin_lock_irqsave(&chip->mixer_lock, flags);
 281        outb(reg, SLSB_REG(chip, MIXERADDR));
 282        data = inb(SLSB_REG(chip, MIXERDATA));
 283        spin_unlock_irqrestore(&chip->mixer_lock, flags);
 284#ifdef REG_DEBUG
 285        snd_printk(KERN_DEBUG "Mixer reg %02x now is %02x\n", reg, data);
 286#endif
 287        return data;
 288}
 289
 290/* -----------------------------------------------------------------
 291 * Write to some bits of a mixer register (return old value)
 292 * -----------------------------------------------------------------*/
 293static int snd_es1938_mixer_bits(struct es1938 *chip, unsigned char reg,
 294                                 unsigned char mask, unsigned char val)
 295{
 296        unsigned long flags;
 297        unsigned char old, new, oval;
 298        spin_lock_irqsave(&chip->mixer_lock, flags);
 299        outb(reg, SLSB_REG(chip, MIXERADDR));
 300        old = inb(SLSB_REG(chip, MIXERDATA));
 301        oval = old & mask;
 302        if (val != oval) {
 303                new = (old & ~mask) | (val & mask);
 304                outb(new, SLSB_REG(chip, MIXERDATA));
 305#ifdef REG_DEBUG
 306                snd_printk(KERN_DEBUG "Mixer reg %02x was %02x, set to %02x\n",
 307                           reg, old, new);
 308#endif
 309        }
 310        spin_unlock_irqrestore(&chip->mixer_lock, flags);
 311        return oval;
 312}
 313
 314/* -----------------------------------------------------------------
 315 * Write command to Controller Registers
 316 * -----------------------------------------------------------------*/
 317static void snd_es1938_write_cmd(struct es1938 *chip, unsigned char cmd)
 318{
 319        int i;
 320        unsigned char v;
 321        for (i = 0; i < WRITE_LOOP_TIMEOUT; i++) {
 322                if (!(v = inb(SLSB_REG(chip, READSTATUS)) & 0x80)) {
 323                        outb(cmd, SLSB_REG(chip, WRITEDATA));
 324                        return;
 325                }
 326        }
 327        printk(KERN_ERR "snd_es1938_write_cmd timeout (0x02%x/0x02%x)\n", cmd, v);
 328}
 329
 330/* -----------------------------------------------------------------
 331 * Read the Read Data Buffer
 332 * -----------------------------------------------------------------*/
 333static int snd_es1938_get_byte(struct es1938 *chip)
 334{
 335        int i;
 336        unsigned char v;
 337        for (i = GET_LOOP_TIMEOUT; i; i--)
 338                if ((v = inb(SLSB_REG(chip, STATUS))) & 0x80)
 339                        return inb(SLSB_REG(chip, READDATA));
 340        snd_printk(KERN_ERR "get_byte timeout: status 0x02%x\n", v);
 341        return -ENODEV;
 342}
 343
 344/* -----------------------------------------------------------------
 345 * Write value cmd register
 346 * -----------------------------------------------------------------*/
 347static void snd_es1938_write(struct es1938 *chip, unsigned char reg, unsigned char val)
 348{
 349        unsigned long flags;
 350        spin_lock_irqsave(&chip->reg_lock, flags);
 351        snd_es1938_write_cmd(chip, reg);
 352        snd_es1938_write_cmd(chip, val);
 353        spin_unlock_irqrestore(&chip->reg_lock, flags);
 354#ifdef REG_DEBUG
 355        snd_printk(KERN_DEBUG "Reg %02x set to %02x\n", reg, val);
 356#endif
 357}
 358
 359/* -----------------------------------------------------------------
 360 * Read data from cmd register and return it
 361 * -----------------------------------------------------------------*/
 362static unsigned char snd_es1938_read(struct es1938 *chip, unsigned char reg)
 363{
 364        unsigned char val;
 365        unsigned long flags;
 366        spin_lock_irqsave(&chip->reg_lock, flags);
 367        snd_es1938_write_cmd(chip, ESS_CMD_READREG);
 368        snd_es1938_write_cmd(chip, reg);
 369        val = snd_es1938_get_byte(chip);
 370        spin_unlock_irqrestore(&chip->reg_lock, flags);
 371#ifdef REG_DEBUG
 372        snd_printk(KERN_DEBUG "Reg %02x now is %02x\n", reg, val);
 373#endif
 374        return val;
 375}
 376
 377/* -----------------------------------------------------------------
 378 * Write data to cmd register and return old value
 379 * -----------------------------------------------------------------*/
 380static int snd_es1938_bits(struct es1938 *chip, unsigned char reg, unsigned char mask,
 381                           unsigned char val)
 382{
 383        unsigned long flags;
 384        unsigned char old, new, oval;
 385        spin_lock_irqsave(&chip->reg_lock, flags);
 386        snd_es1938_write_cmd(chip, ESS_CMD_READREG);
 387        snd_es1938_write_cmd(chip, reg);
 388        old = snd_es1938_get_byte(chip);
 389        oval = old & mask;
 390        if (val != oval) {
 391                snd_es1938_write_cmd(chip, reg);
 392                new = (old & ~mask) | (val & mask);
 393                snd_es1938_write_cmd(chip, new);
 394#ifdef REG_DEBUG
 395                snd_printk(KERN_DEBUG "Reg %02x was %02x, set to %02x\n",
 396                           reg, old, new);
 397#endif
 398        }
 399        spin_unlock_irqrestore(&chip->reg_lock, flags);
 400        return oval;
 401}
 402
 403/* --------------------------------------------------------------------
 404 * Reset the chip
 405 * --------------------------------------------------------------------*/
 406static void snd_es1938_reset(struct es1938 *chip)
 407{
 408        int i;
 409
 410        outb(3, SLSB_REG(chip, RESET));
 411        inb(SLSB_REG(chip, RESET));
 412        outb(0, SLSB_REG(chip, RESET));
 413        for (i = 0; i < RESET_LOOP_TIMEOUT; i++) {
 414                if (inb(SLSB_REG(chip, STATUS)) & 0x80) {
 415                        if (inb(SLSB_REG(chip, READDATA)) == 0xaa)
 416                                goto __next;
 417                }
 418        }
 419        snd_printk(KERN_ERR "ESS Solo-1 reset failed\n");
 420
 421     __next:
 422        snd_es1938_write_cmd(chip, ESS_CMD_ENABLEEXT);
 423
 424        /* Demand transfer DMA: 4 bytes per DMA request */
 425        snd_es1938_write(chip, ESS_CMD_DMATYPE, 2);
 426
 427        /* Change behaviour of register A1
 428           4x oversampling
 429           2nd channel DAC asynchronous */                                                      
 430        snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2MODE, 0x32);
 431        /* enable/select DMA channel and IRQ channel */
 432        snd_es1938_bits(chip, ESS_CMD_IRQCONTROL, 0xf0, 0x50);
 433        snd_es1938_bits(chip, ESS_CMD_DRQCONTROL, 0xf0, 0x50);
 434        snd_es1938_write_cmd(chip, ESS_CMD_ENABLEAUDIO1);
 435        /* Set spatializer parameters to recommended values */
 436        snd_es1938_mixer_write(chip, 0x54, 0x8f);
 437        snd_es1938_mixer_write(chip, 0x56, 0x95);
 438        snd_es1938_mixer_write(chip, 0x58, 0x94);
 439        snd_es1938_mixer_write(chip, 0x5a, 0x80);
 440}
 441
 442/* --------------------------------------------------------------------
 443 * Reset the FIFOs
 444 * --------------------------------------------------------------------*/
 445static void snd_es1938_reset_fifo(struct es1938 *chip)
 446{
 447        outb(2, SLSB_REG(chip, RESET));
 448        outb(0, SLSB_REG(chip, RESET));
 449}
 450
 451static struct snd_ratnum clocks[2] = {
 452        {
 453                .num = 793800,
 454                .den_min = 1,
 455                .den_max = 128,
 456                .den_step = 1,
 457        },
 458        {
 459                .num = 768000,
 460                .den_min = 1,
 461                .den_max = 128,
 462                .den_step = 1,
 463        }
 464};
 465
 466static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
 467        .nrats = 2,
 468        .rats = clocks,
 469};
 470
 471
 472static void snd_es1938_rate_set(struct es1938 *chip, 
 473                                struct snd_pcm_substream *substream,
 474                                int mode)
 475{
 476        unsigned int bits, div0;
 477        struct snd_pcm_runtime *runtime = substream->runtime;
 478        if (runtime->rate_num == clocks[0].num)
 479                bits = 128 - runtime->rate_den;
 480        else
 481                bits = 256 - runtime->rate_den;
 482
 483        /* set filter register */
 484        div0 = 256 - 7160000*20/(8*82*runtime->rate);
 485                
 486        if (mode == DAC2) {
 487                snd_es1938_mixer_write(chip, 0x70, bits);
 488                snd_es1938_mixer_write(chip, 0x72, div0);
 489        } else {
 490                snd_es1938_write(chip, 0xA1, bits);
 491                snd_es1938_write(chip, 0xA2, div0);
 492        }
 493}
 494
 495/* --------------------------------------------------------------------
 496 * Configure Solo1 builtin DMA Controller
 497 * --------------------------------------------------------------------*/
 498
 499static void snd_es1938_playback1_setdma(struct es1938 *chip)
 500{
 501        outb(0x00, SLIO_REG(chip, AUDIO2MODE));
 502        outl(chip->dma2_start, SLIO_REG(chip, AUDIO2DMAADDR));
 503        outw(0, SLIO_REG(chip, AUDIO2DMACOUNT));
 504        outw(chip->dma2_size, SLIO_REG(chip, AUDIO2DMACOUNT));
 505}
 506
 507static void snd_es1938_playback2_setdma(struct es1938 *chip)
 508{
 509        /* Enable DMA controller */
 510        outb(0xc4, SLDM_REG(chip, DMACOMMAND));
 511        /* 1. Master reset */
 512        outb(0, SLDM_REG(chip, DMACLEAR));
 513        /* 2. Mask DMA */
 514        outb(1, SLDM_REG(chip, DMAMASK));
 515        outb(0x18, SLDM_REG(chip, DMAMODE));
 516        outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
 517        outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
 518        /* 3. Unmask DMA */
 519        outb(0, SLDM_REG(chip, DMAMASK));
 520}
 521
 522static void snd_es1938_capture_setdma(struct es1938 *chip)
 523{
 524        /* Enable DMA controller */
 525        outb(0xc4, SLDM_REG(chip, DMACOMMAND));
 526        /* 1. Master reset */
 527        outb(0, SLDM_REG(chip, DMACLEAR));
 528        /* 2. Mask DMA */
 529        outb(1, SLDM_REG(chip, DMAMASK));
 530        outb(0x14, SLDM_REG(chip, DMAMODE));
 531        outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
 532        chip->last_capture_dmaaddr = chip->dma1_start;
 533        outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
 534        /* 3. Unmask DMA */
 535        outb(0, SLDM_REG(chip, DMAMASK));
 536}
 537
 538/* ----------------------------------------------------------------------
 539 *
 540 *                           *** PCM part ***
 541 */
 542
 543static int snd_es1938_capture_trigger(struct snd_pcm_substream *substream,
 544                                      int cmd)
 545{
 546        struct es1938 *chip = snd_pcm_substream_chip(substream);
 547        int val;
 548        switch (cmd) {
 549        case SNDRV_PCM_TRIGGER_START:
 550        case SNDRV_PCM_TRIGGER_RESUME:
 551                val = 0x0f;
 552                chip->active |= ADC1;
 553                break;
 554        case SNDRV_PCM_TRIGGER_STOP:
 555        case SNDRV_PCM_TRIGGER_SUSPEND:
 556                val = 0x00;
 557                chip->active &= ~ADC1;
 558                break;
 559        default:
 560                return -EINVAL;
 561        }
 562        snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
 563        return 0;
 564}
 565
 566static int snd_es1938_playback1_trigger(struct snd_pcm_substream *substream,
 567                                        int cmd)
 568{
 569        struct es1938 *chip = snd_pcm_substream_chip(substream);
 570        switch (cmd) {
 571        case SNDRV_PCM_TRIGGER_START:
 572        case SNDRV_PCM_TRIGGER_RESUME:
 573                /* According to the documentation this should be:
 574                   0x13 but that value may randomly swap stereo channels */
 575                snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x92);
 576                udelay(10);
 577                snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x93);
 578                /* This two stage init gives the FIFO -> DAC connection time to
 579                 * settle before first data from DMA flows in.  This should ensure
 580                 * no swapping of stereo channels.  Report a bug if otherwise :-) */
 581                outb(0x0a, SLIO_REG(chip, AUDIO2MODE));
 582                chip->active |= DAC2;
 583                break;
 584        case SNDRV_PCM_TRIGGER_STOP:
 585        case SNDRV_PCM_TRIGGER_SUSPEND:
 586                outb(0, SLIO_REG(chip, AUDIO2MODE));
 587                snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0);
 588                chip->active &= ~DAC2;
 589                break;
 590        default:
 591                return -EINVAL;
 592        }
 593        return 0;
 594}
 595
 596static int snd_es1938_playback2_trigger(struct snd_pcm_substream *substream,
 597                                        int cmd)
 598{
 599        struct es1938 *chip = snd_pcm_substream_chip(substream);
 600        int val;
 601        switch (cmd) {
 602        case SNDRV_PCM_TRIGGER_START:
 603        case SNDRV_PCM_TRIGGER_RESUME:
 604                val = 5;
 605                chip->active |= DAC1;
 606                break;
 607        case SNDRV_PCM_TRIGGER_STOP:
 608        case SNDRV_PCM_TRIGGER_SUSPEND:
 609                val = 0;
 610                chip->active &= ~DAC1;
 611                break;
 612        default:
 613                return -EINVAL;
 614        }
 615        snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
 616        return 0;
 617}
 618
 619static int snd_es1938_playback_trigger(struct snd_pcm_substream *substream,
 620                                       int cmd)
 621{
 622        switch (substream->number) {
 623        case 0:
 624                return snd_es1938_playback1_trigger(substream, cmd);
 625        case 1:
 626                return snd_es1938_playback2_trigger(substream, cmd);
 627        }
 628        snd_BUG();
 629        return -EINVAL;
 630}
 631
 632/* --------------------------------------------------------------------
 633 * First channel for Extended Mode Audio 1 ADC Operation
 634 * --------------------------------------------------------------------*/
 635static int snd_es1938_capture_prepare(struct snd_pcm_substream *substream)
 636{
 637        struct es1938 *chip = snd_pcm_substream_chip(substream);
 638        struct snd_pcm_runtime *runtime = substream->runtime;
 639        int u, is8, mono;
 640        unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 641        unsigned int count = snd_pcm_lib_period_bytes(substream);
 642
 643        chip->dma1_size = size;
 644        chip->dma1_start = runtime->dma_addr;
 645
 646        mono = (runtime->channels > 1) ? 0 : 1;
 647        is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
 648        u = snd_pcm_format_unsigned(runtime->format);
 649
 650        chip->dma1_shift = 2 - mono - is8;
 651
 652        snd_es1938_reset_fifo(chip);
 653        
 654        /* program type */
 655        snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
 656
 657        /* set clock and counters */
 658        snd_es1938_rate_set(chip, substream, ADC1);
 659
 660        count = 0x10000 - count;
 661        snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
 662        snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
 663
 664        /* initialize and configure ADC */
 665        snd_es1938_write(chip, ESS_CMD_SETFORMAT2, u ? 0x51 : 0x71);
 666        snd_es1938_write(chip, ESS_CMD_SETFORMAT2, 0x90 | 
 667                       (u ? 0x00 : 0x20) | 
 668                       (is8 ? 0x00 : 0x04) | 
 669                       (mono ? 0x40 : 0x08));
 670
 671        //      snd_es1938_reset_fifo(chip);    
 672
 673        /* 11. configure system interrupt controller and DMA controller */
 674        snd_es1938_capture_setdma(chip);
 675
 676        return 0;
 677}
 678
 679
 680/* ------------------------------------------------------------------------------
 681 * Second Audio channel DAC Operation
 682 * ------------------------------------------------------------------------------*/
 683static int snd_es1938_playback1_prepare(struct snd_pcm_substream *substream)
 684{
 685        struct es1938 *chip = snd_pcm_substream_chip(substream);
 686        struct snd_pcm_runtime *runtime = substream->runtime;
 687        int u, is8, mono;
 688        unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 689        unsigned int count = snd_pcm_lib_period_bytes(substream);
 690
 691        chip->dma2_size = size;
 692        chip->dma2_start = runtime->dma_addr;
 693
 694        mono = (runtime->channels > 1) ? 0 : 1;
 695        is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
 696        u = snd_pcm_format_unsigned(runtime->format);
 697
 698        chip->dma2_shift = 2 - mono - is8;
 699
 700        snd_es1938_reset_fifo(chip);
 701
 702        /* set clock and counters */
 703        snd_es1938_rate_set(chip, substream, DAC2);
 704
 705        count >>= 1;
 706        count = 0x10000 - count;
 707        snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTL, count & 0xff);
 708        snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTH, count >> 8);
 709
 710        /* initialize and configure Audio 2 DAC */
 711        snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x40 | (u ? 0 : 4) |
 712                               (mono ? 0 : 2) | (is8 ? 0 : 1));
 713
 714        /* program DMA */
 715        snd_es1938_playback1_setdma(chip);
 716        
 717        return 0;
 718}
 719
 720static int snd_es1938_playback2_prepare(struct snd_pcm_substream *substream)
 721{
 722        struct es1938 *chip = snd_pcm_substream_chip(substream);
 723        struct snd_pcm_runtime *runtime = substream->runtime;
 724        int u, is8, mono;
 725        unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 726        unsigned int count = snd_pcm_lib_period_bytes(substream);
 727
 728        chip->dma1_size = size;
 729        chip->dma1_start = runtime->dma_addr;
 730
 731        mono = (runtime->channels > 1) ? 0 : 1;
 732        is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
 733        u = snd_pcm_format_unsigned(runtime->format);
 734
 735        chip->dma1_shift = 2 - mono - is8;
 736
 737        count = 0x10000 - count;
 738 
 739        /* reset */
 740        snd_es1938_reset_fifo(chip);
 741        
 742        snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
 743
 744        /* set clock and counters */
 745        snd_es1938_rate_set(chip, substream, DAC1);
 746        snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
 747        snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
 748
 749        /* initialized and configure DAC */
 750        snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x80 : 0x00);
 751        snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x51 : 0x71);
 752        snd_es1938_write(chip, ESS_CMD_SETFORMAT2, 
 753                         0x90 | (mono ? 0x40 : 0x08) |
 754                         (is8 ? 0x00 : 0x04) | (u ? 0x00 : 0x20));
 755
 756        /* program DMA */
 757        snd_es1938_playback2_setdma(chip);
 758        
 759        return 0;
 760}
 761
 762static int snd_es1938_playback_prepare(struct snd_pcm_substream *substream)
 763{
 764        switch (substream->number) {
 765        case 0:
 766                return snd_es1938_playback1_prepare(substream);
 767        case 1:
 768                return snd_es1938_playback2_prepare(substream);
 769        }
 770        snd_BUG();
 771        return -EINVAL;
 772}
 773
 774/* during the incrementing of dma counters the DMA register reads sometimes
 775   returns garbage. To ensure a valid hw pointer, the following checks which
 776   should be very unlikely to fail are used:
 777   - is the current DMA address in the valid DMA range ?
 778   - is the sum of DMA address and DMA counter pointing to the last DMA byte ?
 779   One can argue this could differ by one byte depending on which register is
 780   updated first, so the implementation below allows for that.
 781*/
 782static snd_pcm_uframes_t snd_es1938_capture_pointer(struct snd_pcm_substream *substream)
 783{
 784        struct es1938 *chip = snd_pcm_substream_chip(substream);
 785        size_t ptr;
 786#if 0
 787        size_t old, new;
 788        /* This stuff is *needed*, don't ask why - AB */
 789        old = inw(SLDM_REG(chip, DMACOUNT));
 790        while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
 791                old = new;
 792        ptr = chip->dma1_size - 1 - new;
 793#else
 794        size_t count;
 795        unsigned int diff;
 796
 797        ptr = inl(SLDM_REG(chip, DMAADDR));
 798        count = inw(SLDM_REG(chip, DMACOUNT));
 799        diff = chip->dma1_start + chip->dma1_size - ptr - count;
 800
 801        if (diff > 3 || ptr < chip->dma1_start
 802              || ptr >= chip->dma1_start+chip->dma1_size)
 803          ptr = chip->last_capture_dmaaddr;            /* bad, use last saved */
 804        else
 805          chip->last_capture_dmaaddr = ptr;            /* good, remember it */
 806
 807        ptr -= chip->dma1_start;
 808#endif
 809        return ptr >> chip->dma1_shift;
 810}
 811
 812static snd_pcm_uframes_t snd_es1938_playback1_pointer(struct snd_pcm_substream *substream)
 813{
 814        struct es1938 *chip = snd_pcm_substream_chip(substream);
 815        size_t ptr;
 816#if 1
 817        ptr = chip->dma2_size - inw(SLIO_REG(chip, AUDIO2DMACOUNT));
 818#else
 819        ptr = inl(SLIO_REG(chip, AUDIO2DMAADDR)) - chip->dma2_start;
 820#endif
 821        return ptr >> chip->dma2_shift;
 822}
 823
 824static snd_pcm_uframes_t snd_es1938_playback2_pointer(struct snd_pcm_substream *substream)
 825{
 826        struct es1938 *chip = snd_pcm_substream_chip(substream);
 827        size_t ptr;
 828        size_t old, new;
 829#if 1
 830        /* This stuff is *needed*, don't ask why - AB */
 831        old = inw(SLDM_REG(chip, DMACOUNT));
 832        while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
 833                old = new;
 834        ptr = chip->dma1_size - 1 - new;
 835#else
 836        ptr = inl(SLDM_REG(chip, DMAADDR)) - chip->dma1_start;
 837#endif
 838        return ptr >> chip->dma1_shift;
 839}
 840
 841static snd_pcm_uframes_t snd_es1938_playback_pointer(struct snd_pcm_substream *substream)
 842{
 843        switch (substream->number) {
 844        case 0:
 845                return snd_es1938_playback1_pointer(substream);
 846        case 1:
 847                return snd_es1938_playback2_pointer(substream);
 848        }
 849        snd_BUG();
 850        return -EINVAL;
 851}
 852
 853static int snd_es1938_capture_copy(struct snd_pcm_substream *substream,
 854                                   int channel,
 855                                   snd_pcm_uframes_t pos,
 856                                   void __user *dst,
 857                                   snd_pcm_uframes_t count)
 858{
 859        struct snd_pcm_runtime *runtime = substream->runtime;
 860        struct es1938 *chip = snd_pcm_substream_chip(substream);
 861        pos <<= chip->dma1_shift;
 862        count <<= chip->dma1_shift;
 863        snd_assert(pos + count <= chip->dma1_size, return -EINVAL);
 864        if (pos + count < chip->dma1_size) {
 865                if (copy_to_user(dst, runtime->dma_area + pos + 1, count))
 866                        return -EFAULT;
 867        } else {
 868                if (copy_to_user(dst, runtime->dma_area + pos + 1, count - 1))
 869                        return -EFAULT;
 870                if (put_user(runtime->dma_area[0], ((unsigned char __user *)dst) + count - 1))
 871                        return -EFAULT;
 872        }
 873        return 0;
 874}
 875
 876/*
 877 * buffer management
 878 */
 879static int snd_es1938_pcm_hw_params(struct snd_pcm_substream *substream,
 880                                    struct snd_pcm_hw_params *hw_params)
 881
 882{
 883        int err;
 884
 885        if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 886                return err;
 887        return 0;
 888}
 889
 890static int snd_es1938_pcm_hw_free(struct snd_pcm_substream *substream)
 891{
 892        return snd_pcm_lib_free_pages(substream);
 893}
 894
 895/* ----------------------------------------------------------------------
 896 * Audio1 Capture (ADC)
 897 * ----------------------------------------------------------------------*/
 898static struct snd_pcm_hardware snd_es1938_capture =
 899{
 900        .info =                 (SNDRV_PCM_INFO_INTERLEAVED |
 901                                SNDRV_PCM_INFO_BLOCK_TRANSFER),
 902        .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
 903                                 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
 904        .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 905        .rate_min =             6000,
 906        .rate_max =             48000,
 907        .channels_min =         1,
 908        .channels_max =         2,
 909        .buffer_bytes_max =     0x8000,       /* DMA controller screws on higher values */
 910        .period_bytes_min =     64,
 911        .period_bytes_max =     0x8000,
 912        .periods_min =          1,
 913        .periods_max =          1024,
 914        .fifo_size =            256,
 915};
 916
 917/* -----------------------------------------------------------------------
 918 * Audio2 Playback (DAC)
 919 * -----------------------------------------------------------------------*/
 920static struct snd_pcm_hardware snd_es1938_playback =
 921{
 922        .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 923                                 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 924                                 SNDRV_PCM_INFO_MMAP_VALID),
 925        .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
 926                                 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
 927        .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 928        .rate_min =             6000,
 929        .rate_max =             48000,
 930        .channels_min =         1,
 931        .channels_max =         2,
 932        .buffer_bytes_max =     0x8000,       /* DMA controller screws on higher values */
 933        .period_bytes_min =     64,
 934        .period_bytes_max =     0x8000,
 935        .periods_min =          1,
 936        .periods_max =          1024,
 937        .fifo_size =            256,
 938};
 939
 940static int snd_es1938_capture_open(struct snd_pcm_substream *substream)
 941{
 942        struct es1938 *chip = snd_pcm_substream_chip(substream);
 943        struct snd_pcm_runtime *runtime = substream->runtime;
 944
 945        if (chip->playback2_substream)
 946                return -EAGAIN;
 947        chip->capture_substream = substream;
 948        runtime->hw = snd_es1938_capture;
 949        snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 950                                      &hw_constraints_clocks);
 951        snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
 952        return 0;
 953}
 954
 955static int snd_es1938_playback_open(struct snd_pcm_substream *substream)
 956{
 957        struct es1938 *chip = snd_pcm_substream_chip(substream);
 958        struct snd_pcm_runtime *runtime = substream->runtime;
 959
 960        switch (substream->number) {
 961        case 0:
 962                chip->playback1_substream = substream;
 963                break;
 964        case 1:
 965                if (chip->capture_substream)
 966                        return -EAGAIN;
 967                chip->playback2_substream = substream;
 968                break;
 969        default:
 970                snd_BUG();
 971                return -EINVAL;
 972        }
 973        runtime->hw = snd_es1938_playback;
 974        snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 975                                      &hw_constraints_clocks);
 976        snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
 977        return 0;
 978}
 979
 980static int snd_es1938_capture_close(struct snd_pcm_substream *substream)
 981{
 982        struct es1938 *chip = snd_pcm_substream_chip(substream);
 983
 984        chip->capture_substream = NULL;
 985        return 0;
 986}
 987
 988static int snd_es1938_playback_close(struct snd_pcm_substream *substream)
 989{
 990        struct es1938 *chip = snd_pcm_substream_chip(substream);
 991
 992        switch (substream->number) {
 993        case 0:
 994                chip->playback1_substream = NULL;
 995                break;
 996        case 1:
 997                chip->playback2_substream = NULL;
 998                break;
 999        default:
1000                snd_BUG();
1001                return -EINVAL;
1002        }
1003        return 0;
1004}
1005
1006static struct snd_pcm_ops snd_es1938_playback_ops = {
1007        .open =         snd_es1938_playback_open,
1008        .close =        snd_es1938_playback_close,
1009        .ioctl =        snd_pcm_lib_ioctl,
1010        .hw_params =    snd_es1938_pcm_hw_params,
1011        .hw_free =      snd_es1938_pcm_hw_free,
1012        .prepare =      snd_es1938_playback_prepare,
1013        .trigger =      snd_es1938_playback_trigger,
1014        .pointer =      snd_es1938_playback_pointer,
1015};
1016
1017static struct snd_pcm_ops snd_es1938_capture_ops = {
1018        .open =         snd_es1938_capture_open,
1019        .close =        snd_es1938_capture_close,
1020        .ioctl =        snd_pcm_lib_ioctl,
1021        .hw_params =    snd_es1938_pcm_hw_params,
1022        .hw_free =      snd_es1938_pcm_hw_free,
1023        .prepare =      snd_es1938_capture_prepare,
1024        .trigger =      snd_es1938_capture_trigger,
1025        .pointer =      snd_es1938_capture_pointer,
1026        .copy =         snd_es1938_capture_copy,
1027};
1028
1029static int __devinit snd_es1938_new_pcm(struct es1938 *chip, int device)
1030{
1031        struct snd_pcm *pcm;
1032        int err;
1033
1034        if ((err = snd_pcm_new(chip->card, "es-1938-1946", device, 2, 1, &pcm)) < 0)
1035                return err;
1036        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1938_playback_ops);
1037        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1938_capture_ops);
1038        
1039        pcm->private_data = chip;
1040        pcm->info_flags = 0;
1041        strcpy(pcm->name, "ESS Solo-1");
1042
1043        snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1044                                              snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1045
1046        chip->pcm = pcm;
1047        return 0;
1048}
1049
1050/* -------------------------------------------------------------------
1051 * 
1052 *                       *** Mixer part ***
1053 */
1054
1055static int snd_es1938_info_mux(struct snd_kcontrol *kcontrol,
1056                               struct snd_ctl_elem_info *uinfo)
1057{
1058        static char *texts[8] = {
1059                "Mic", "Mic Master", "CD", "AOUT",
1060                "Mic1", "Mix", "Line", "Master"
1061        };
1062
1063        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1064        uinfo->count = 1;
1065        uinfo->value.enumerated.items = 8;
1066        if (uinfo->value.enumerated.item > 7)
1067                uinfo->value.enumerated.item = 7;
1068        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1069        return 0;
1070}
1071
1072static int snd_es1938_get_mux(struct snd_kcontrol *kcontrol,
1073                              struct snd_ctl_elem_value *ucontrol)
1074{
1075        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1076        ucontrol->value.enumerated.item[0] = snd_es1938_mixer_read(chip, 0x1c) & 0x07;
1077        return 0;
1078}
1079
1080static int snd_es1938_put_mux(struct snd_kcontrol *kcontrol,
1081                              struct snd_ctl_elem_value *ucontrol)
1082{
1083        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1084        unsigned char val = ucontrol->value.enumerated.item[0];
1085        
1086        if (val > 7)
1087                return -EINVAL;
1088        return snd_es1938_mixer_bits(chip, 0x1c, 0x07, val) != val;
1089}
1090
1091#define snd_es1938_info_spatializer_enable      snd_ctl_boolean_mono_info
1092
1093static int snd_es1938_get_spatializer_enable(struct snd_kcontrol *kcontrol,
1094                                             struct snd_ctl_elem_value *ucontrol)
1095{
1096        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1097        unsigned char val = snd_es1938_mixer_read(chip, 0x50);
1098        ucontrol->value.integer.value[0] = !!(val & 8);
1099        return 0;
1100}
1101
1102static int snd_es1938_put_spatializer_enable(struct snd_kcontrol *kcontrol,
1103                                             struct snd_ctl_elem_value *ucontrol)
1104{
1105        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1106        unsigned char oval, nval;
1107        int change;
1108        nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1109        oval = snd_es1938_mixer_read(chip, 0x50) & 0x0c;
1110        change = nval != oval;
1111        if (change) {
1112                snd_es1938_mixer_write(chip, 0x50, nval & ~0x04);
1113                snd_es1938_mixer_write(chip, 0x50, nval);
1114        }
1115        return change;
1116}
1117
1118static int snd_es1938_info_hw_volume(struct snd_kcontrol *kcontrol,
1119                                     struct snd_ctl_elem_info *uinfo)
1120{
1121        uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1122        uinfo->count = 2;
1123        uinfo->value.integer.min = 0;
1124        uinfo->value.integer.max = 63;
1125        return 0;
1126}
1127
1128static int snd_es1938_get_hw_volume(struct snd_kcontrol *kcontrol,
1129                                    struct snd_ctl_elem_value *ucontrol)
1130{
1131        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1132        ucontrol->value.integer.value[0] = snd_es1938_mixer_read(chip, 0x61) & 0x3f;
1133        ucontrol->value.integer.value[1] = snd_es1938_mixer_read(chip, 0x63) & 0x3f;
1134        return 0;
1135}
1136
1137#define snd_es1938_info_hw_switch               snd_ctl_boolean_stereo_info
1138
1139static int snd_es1938_get_hw_switch(struct snd_kcontrol *kcontrol,
1140                                    struct snd_ctl_elem_value *ucontrol)
1141{
1142        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1143        ucontrol->value.integer.value[0] = !(snd_es1938_mixer_read(chip, 0x61) & 0x40);
1144        ucontrol->value.integer.value[1] = !(snd_es1938_mixer_read(chip, 0x63) & 0x40);
1145        return 0;
1146}
1147
1148static void snd_es1938_hwv_free(struct snd_kcontrol *kcontrol)
1149{
1150        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1151        chip->master_volume = NULL;
1152        chip->master_switch = NULL;
1153        chip->hw_volume = NULL;
1154        chip->hw_switch = NULL;
1155}
1156
1157static int snd_es1938_reg_bits(struct es1938 *chip, unsigned char reg,
1158                               unsigned char mask, unsigned char val)
1159{
1160        if (reg < 0xa0)
1161                return snd_es1938_mixer_bits(chip, reg, mask, val);
1162        else
1163                return snd_es1938_bits(chip, reg, mask, val);
1164}
1165
1166static int snd_es1938_reg_read(struct es1938 *chip, unsigned char reg)
1167{
1168        if (reg < 0xa0)
1169                return snd_es1938_mixer_read(chip, reg);
1170        else
1171                return snd_es1938_read(chip, reg);
1172}
1173
1174#define ES1938_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv)    \
1175{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1176  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,\
1177  .name = xname, .index = xindex, \
1178  .info = snd_es1938_info_single, \
1179  .get = snd_es1938_get_single, .put = snd_es1938_put_single, \
1180  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
1181  .tlv = { .p = xtlv } }
1182#define ES1938_SINGLE(xname, xindex, reg, shift, mask, invert) \
1183{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1184  .info = snd_es1938_info_single, \
1185  .get = snd_es1938_get_single, .put = snd_es1938_put_single, \
1186  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1187
1188static int snd_es1938_info_single(struct snd_kcontrol *kcontrol,
1189                                  struct snd_ctl_elem_info *uinfo)
1190{
1191        int mask = (kcontrol->private_value >> 16) & 0xff;
1192
1193        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1194        uinfo->count = 1;
1195        uinfo->value.integer.min = 0;
1196        uinfo->value.integer.max = mask;
1197        return 0;
1198}
1199
1200static int snd_es1938_get_single(struct snd_kcontrol *kcontrol,
1201                                 struct snd_ctl_elem_value *ucontrol)
1202{
1203        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1204        int reg = kcontrol->private_value & 0xff;
1205        int shift = (kcontrol->private_value >> 8) & 0xff;
1206        int mask = (kcontrol->private_value >> 16) & 0xff;
1207        int invert = (kcontrol->private_value >> 24) & 0xff;
1208        int val;
1209        
1210        val = snd_es1938_reg_read(chip, reg);
1211        ucontrol->value.integer.value[0] = (val >> shift) & mask;
1212        if (invert)
1213                ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1214        return 0;
1215}
1216
1217static int snd_es1938_put_single(struct snd_kcontrol *kcontrol,
1218                                 struct snd_ctl_elem_value *ucontrol)
1219{
1220        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1221        int reg = kcontrol->private_value & 0xff;
1222        int shift = (kcontrol->private_value >> 8) & 0xff;
1223        int mask = (kcontrol->private_value >> 16) & 0xff;
1224        int invert = (kcontrol->private_value >> 24) & 0xff;
1225        unsigned char val;
1226        
1227        val = (ucontrol->value.integer.value[0] & mask);
1228        if (invert)
1229                val = mask - val;
1230        mask <<= shift;
1231        val <<= shift;
1232        return snd_es1938_reg_bits(chip, reg, mask, val) != val;
1233}
1234
1235#define ES1938_DOUBLE_TLV(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert, xtlv) \
1236{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1237  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,\
1238  .name = xname, .index = xindex, \
1239  .info = snd_es1938_info_double, \
1240  .get = snd_es1938_get_double, .put = snd_es1938_put_double, \
1241  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22), \
1242  .tlv = { .p = xtlv } }
1243#define ES1938_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1244{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1245  .info = snd_es1938_info_double, \
1246  .get = snd_es1938_get_double, .put = snd_es1938_put_double, \
1247  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1248
1249static int snd_es1938_info_double(struct snd_kcontrol *kcontrol,
1250                                  struct snd_ctl_elem_info *uinfo)
1251{
1252        int mask = (kcontrol->private_value >> 24) & 0xff;
1253
1254        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1255        uinfo->count = 2;
1256        uinfo->value.integer.min = 0;
1257        uinfo->value.integer.max = mask;
1258        return 0;
1259}
1260
1261static int snd_es1938_get_double(struct snd_kcontrol *kcontrol,
1262                                 struct snd_ctl_elem_value *ucontrol)
1263{
1264        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1265        int left_reg = kcontrol->private_value & 0xff;
1266        int right_reg = (kcontrol->private_value >> 8) & 0xff;
1267        int shift_left = (kcontrol->private_value >> 16) & 0x07;
1268        int shift_right = (kcontrol->private_value >> 19) & 0x07;
1269        int mask = (kcontrol->private_value >> 24) & 0xff;
1270        int invert = (kcontrol->private_value >> 22) & 1;
1271        unsigned char left, right;
1272        
1273        left = snd_es1938_reg_read(chip, left_reg);
1274        if (left_reg != right_reg)
1275                right = snd_es1938_reg_read(chip, right_reg);
1276        else
1277                right = left;
1278        ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1279        ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1280        if (invert) {
1281                ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1282                ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1283        }
1284        return 0;
1285}
1286
1287static int snd_es1938_put_double(struct snd_kcontrol *kcontrol,
1288                                 struct snd_ctl_elem_value *ucontrol)
1289{
1290        struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1291        int left_reg = kcontrol->private_value & 0xff;
1292        int right_reg = (kcontrol->private_value >> 8) & 0xff;
1293        int shift_left = (kcontrol->private_value >> 16) & 0x07;
1294        int shift_right = (kcontrol->private_value >> 19) & 0x07;
1295        int mask = (kcontrol->private_value >> 24) & 0xff;
1296        int invert = (kcontrol->private_value >> 22) & 1;
1297        int change;
1298        unsigned char val1, val2, mask1, mask2;
1299        
1300        val1 = ucontrol->value.integer.value[0] & mask;
1301        val2 = ucontrol->value.integer.value[1] & mask;
1302        if (invert) {
1303                val1 = mask - val1;
1304                val2 = mask - val2;
1305        }
1306        val1 <<= shift_left;
1307        val2 <<= shift_right;
1308        mask1 = mask << shift_left;
1309        mask2 = mask << shift_right;
1310        if (left_reg != right_reg) {
1311                change = 0;
1312                if (snd_es1938_reg_bits(chip, left_reg, mask1, val1) != val1)
1313                        change = 1;
1314                if (snd_es1938_reg_bits(chip, right_reg, mask2, val2) != val2)
1315                        change = 1;
1316        } else {
1317                change = (snd_es1938_reg_bits(chip, left_reg, mask1 | mask2, 
1318                                              val1 | val2) != (val1 | val2));
1319        }
1320        return change;
1321}
1322
1323static unsigned int db_scale_master[] = {
1324        TLV_DB_RANGE_HEAD(2),
1325        0, 54, TLV_DB_SCALE_ITEM(-3600, 50, 1),
1326        54, 63, TLV_DB_SCALE_ITEM(-900, 100, 0),
1327};
1328
1329static unsigned int db_scale_audio1[] = {
1330        TLV_DB_RANGE_HEAD(2),
1331        0, 8, TLV_DB_SCALE_ITEM(-3300, 300, 1),
1332        8, 15, TLV_DB_SCALE_ITEM(-900, 150, 0),
1333};
1334
1335static unsigned int db_scale_audio2[] = {
1336        TLV_DB_RANGE_HEAD(2),
1337        0, 8, TLV_DB_SCALE_ITEM(-3450, 300, 1),
1338        8, 15, TLV_DB_SCALE_ITEM(-1050, 150, 0),
1339};
1340
1341static unsigned int db_scale_mic[] = {
1342        TLV_DB_RANGE_HEAD(2),
1343        0, 8, TLV_DB_SCALE_ITEM(-2400, 300, 1),
1344        8, 15, TLV_DB_SCALE_ITEM(0, 150, 0),
1345};
1346
1347static unsigned int db_scale_line[] = {
1348        TLV_DB_RANGE_HEAD(2),
1349        0, 8, TLV_DB_SCALE_ITEM(-3150, 300, 1),
1350        8, 15, TLV_DB_SCALE_ITEM(-750, 150, 0),
1351};
1352
1353static const DECLARE_TLV_DB_SCALE(db_scale_capture, 0, 150, 0);
1354
1355static struct snd_kcontrol_new snd_es1938_controls[] = {
1356ES1938_DOUBLE_TLV("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0,
1357                  db_scale_master),
1358ES1938_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1359{
1360        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1361        .name = "Hardware Master Playback Volume",
1362        .access = SNDRV_CTL_ELEM_ACCESS_READ,
1363        .info = snd_es1938_info_hw_volume,
1364        .get = snd_es1938_get_hw_volume,
1365},
1366{
1367        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1368        .access = (SNDRV_CTL_ELEM_ACCESS_READ |
1369                   SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1370        .name = "Hardware Master Playback Switch",
1371        .info = snd_es1938_info_hw_switch,
1372        .get = snd_es1938_get_hw_switch,
1373        .tlv = { .p = db_scale_master },
1374},
1375ES1938_SINGLE("Hardware Volume Split", 0, 0x64, 7, 1, 0),
1376ES1938_DOUBLE_TLV("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0,
1377                  db_scale_line),
1378ES1938_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1379ES1938_DOUBLE_TLV("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0,
1380                  db_scale_mic),
1381ES1938_DOUBLE_TLV("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0,
1382                  db_scale_line),
1383ES1938_DOUBLE_TLV("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0,
1384                  db_scale_mic),
1385ES1938_DOUBLE_TLV("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0,
1386                  db_scale_line),
1387ES1938_DOUBLE_TLV("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0,
1388                  db_scale_capture),
1389ES1938_SINGLE("PC Speaker Volume", 0, 0x3c, 0, 7, 0),
1390ES1938_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1391ES1938_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
1392{
1393        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1394        .name = "Capture Source",
1395        .info = snd_es1938_info_mux,
1396        .get = snd_es1938_get_mux,
1397        .put = snd_es1938_put_mux,
1398},
1399ES1938_DOUBLE_TLV("Mono Input Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0,
1400                  db_scale_line),
1401ES1938_DOUBLE_TLV("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0,
1402                  db_scale_audio2),
1403ES1938_DOUBLE_TLV("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0,
1404                  db_scale_mic),
1405ES1938_DOUBLE_TLV("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0,
1406                  db_scale_line),
1407ES1938_DOUBLE_TLV("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0,
1408                  db_scale_mic),
1409ES1938_DOUBLE_TLV("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0,
1410                  db_scale_line),
1411ES1938_DOUBLE_TLV("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0,
1412                  db_scale_line),
1413ES1938_DOUBLE_TLV("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0,
1414                  db_scale_line),
1415ES1938_DOUBLE_TLV("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0,
1416                  db_scale_audio2),
1417ES1938_DOUBLE_TLV("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0,
1418                  db_scale_audio1),
1419ES1938_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1420{
1421        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1422        .name = "3D Control - Switch",
1423        .info = snd_es1938_info_spatializer_enable,
1424        .get = snd_es1938_get_spatializer_enable,
1425        .put = snd_es1938_put_spatializer_enable,
1426},
1427ES1938_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0)
1428};
1429
1430
1431/* ---------------------------------------------------------------------------- */
1432/* ---------------------------------------------------------------------------- */
1433
1434/*
1435 * initialize the chip - used by resume callback, too
1436 */
1437static void snd_es1938_chip_init(struct es1938 *chip)
1438{
1439        /* reset chip */
1440        snd_es1938_reset(chip);
1441
1442        /* configure native mode */
1443
1444        /* enable bus master */
1445        pci_set_master(chip->pci);
1446
1447        /* disable legacy audio */
1448        pci_write_config_word(chip->pci, SL_PCI_LEGACYCONTROL, 0x805f);
1449
1450        /* set DDMA base */
1451        pci_write_config_word(chip->pci, SL_PCI_DDMACONTROL, chip->ddma_port | 1);
1452
1453        /* set DMA/IRQ policy */
1454        pci_write_config_dword(chip->pci, SL_PCI_CONFIG, 0);
1455
1456        /* enable Audio 1, Audio 2, MPU401 IRQ and HW volume IRQ*/
1457        outb(0xf0, SLIO_REG(chip, IRQCONTROL));
1458
1459        /* reset DMA */
1460        outb(0, SLDM_REG(chip, DMACLEAR));
1461}
1462
1463#ifdef CONFIG_PM
1464/*
1465 * PM support
1466 */
1467
1468static unsigned char saved_regs[SAVED_REG_SIZE+1] = {
1469        0x14, 0x1a, 0x1c, 0x3a, 0x3c, 0x3e, 0x36, 0x38,
1470        0x50, 0x52, 0x60, 0x61, 0x62, 0x63, 0x64, 0x68,
1471        0x69, 0x6a, 0x6b, 0x6d, 0x6e, 0x6f, 0x7c, 0x7d,
1472        0xa8, 0xb4,
1473};
1474
1475
1476static int es1938_suspend(struct pci_dev *pci, pm_message_t state)
1477{
1478        struct snd_card *card = pci_get_drvdata(pci);
1479        struct es1938 *chip = card->private_data;
1480        unsigned char *s, *d;
1481
1482        snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1483        snd_pcm_suspend_all(chip->pcm);
1484
1485        /* save mixer-related registers */
1486        for (s = saved_regs, d = chip->saved_regs; *s; s++, d++)
1487                *d = snd_es1938_reg_read(chip, *s);
1488
1489        outb(0x00, SLIO_REG(chip, IRQCONTROL)); /* disable irqs */
1490        if (chip->irq >= 0) {
1491                free_irq(chip->irq, chip);
1492                chip->irq = -1;
1493        }
1494        pci_disable_device(pci);
1495        pci_save_state(pci);
1496        pci_set_power_state(pci, pci_choose_state(pci, state));
1497        return 0;
1498}
1499
1500static int es1938_resume(struct pci_dev *pci)
1501{
1502        struct snd_card *card = pci_get_drvdata(pci);
1503        struct es1938 *chip = card->private_data;
1504        unsigned char *s, *d;
1505
1506        pci_set_power_state(pci, PCI_D0);
1507        pci_restore_state(pci);
1508        if (pci_enable_device(pci) < 0) {
1509                printk(KERN_ERR "es1938: pci_enable_device failed, "
1510                       "disabling device\n");
1511                snd_card_disconnect(card);
1512                return -EIO;
1513        }
1514
1515        if (request_irq(pci->irq, snd_es1938_interrupt,
1516                        IRQF_SHARED, "ES1938", chip)) {
1517                printk(KERN_ERR "es1938: unable to grab IRQ %d, "
1518                       "disabling device\n", pci->irq);
1519                snd_card_disconnect(card);
1520                return -EIO;
1521        }
1522        chip->irq = pci->irq;
1523        snd_es1938_chip_init(chip);
1524
1525        /* restore mixer-related registers */
1526        for (s = saved_regs, d = chip->saved_regs; *s; s++, d++) {
1527                if (*s < 0xa0)
1528                        snd_es1938_mixer_write(chip, *s, *d);
1529                else
1530                        snd_es1938_write(chip, *s, *d);
1531        }
1532
1533        snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1534        return 0;
1535}
1536#endif /* CONFIG_PM */
1537
1538#ifdef SUPPORT_JOYSTICK
1539static int __devinit snd_es1938_create_gameport(struct es1938 *chip)
1540{
1541        struct gameport *gp;
1542
1543        chip->gameport = gp = gameport_allocate_port();
1544        if (!gp) {
1545                printk(KERN_ERR "es1938: cannot allocate memory for gameport\n");
1546                return -ENOMEM;
1547        }
1548
1549        gameport_set_name(gp, "ES1938");
1550        gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1551        gameport_set_dev_parent(gp, &chip->pci->dev);
1552        gp->io = chip->game_port;
1553
1554        gameport_register_port(gp);
1555
1556        return 0;
1557}
1558
1559static void snd_es1938_free_gameport(struct es1938 *chip)
1560{
1561        if (chip->gameport) {
1562                gameport_unregister_port(chip->gameport);
1563                chip->gameport = NULL;
1564        }
1565}
1566#else
1567static inline int snd_es1938_create_gameport(struct es1938 *chip) { return -ENOSYS; }
1568static inline void snd_es1938_free_gameport(struct es1938 *chip) { }
1569#endif /* SUPPORT_JOYSTICK */
1570
1571static int snd_es1938_free(struct es1938 *chip)
1572{
1573        /* disable irqs */
1574        outb(0x00, SLIO_REG(chip, IRQCONTROL));
1575        if (chip->rmidi)
1576                snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0);
1577
1578        snd_es1938_free_gameport(chip);
1579
1580        if (chip->irq >= 0)
1581                free_irq(chip->irq, chip);
1582        pci_release_regions(chip->pci);
1583        pci_disable_device(chip->pci);
1584        kfree(chip);
1585        return 0;
1586}
1587
1588static int snd_es1938_dev_free(struct snd_device *device)
1589{
1590        struct es1938 *chip = device->device_data;
1591        return snd_es1938_free(chip);
1592}
1593
1594static int __devinit snd_es1938_create(struct snd_card *card,
1595                                    struct pci_dev * pci,
1596                                    struct es1938 ** rchip)
1597{
1598        struct es1938 *chip;
1599        int err;
1600        static struct snd_device_ops ops = {
1601                .dev_free =     snd_es1938_dev_free,
1602        };
1603
1604        *rchip = NULL;
1605
1606        /* enable PCI device */
1607        if ((err = pci_enable_device(pci)) < 0)
1608                return err;
1609        /* check, if we can restrict PCI DMA transfers to 24 bits */
1610        if (pci_set_dma_mask(pci, DMA_24BIT_MASK) < 0 ||
1611            pci_set_consistent_dma_mask(pci, DMA_24BIT_MASK) < 0) {
1612                snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n");
1613                pci_disable_device(pci);
1614                return -ENXIO;
1615        }
1616
1617        chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1618        if (chip == NULL) {
1619                pci_disable_device(pci);
1620                return -ENOMEM;
1621        }
1622        spin_lock_init(&chip->reg_lock);
1623        spin_lock_init(&chip->mixer_lock);
1624        chip->card = card;
1625        chip->pci = pci;
1626        chip->irq = -1;
1627        if ((err = pci_request_regions(pci, "ESS Solo-1")) < 0) {
1628                kfree(chip);
1629                pci_disable_device(pci);
1630                return err;
1631        }
1632        chip->io_port = pci_resource_start(pci, 0);
1633        chip->sb_port = pci_resource_start(pci, 1);
1634        chip->vc_port = pci_resource_start(pci, 2);
1635        chip->mpu_port = pci_resource_start(pci, 3);
1636        chip->game_port = pci_resource_start(pci, 4);
1637        if (request_irq(pci->irq, snd_es1938_interrupt, IRQF_SHARED,
1638                        "ES1938", chip)) {
1639                snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1640                snd_es1938_free(chip);
1641                return -EBUSY;
1642        }
1643        chip->irq = pci->irq;
1644#ifdef ES1938_DDEBUG
1645        snd_printk(KERN_DEBUG "create: io: 0x%lx, sb: 0x%lx, vc: 0x%lx, mpu: 0x%lx, game: 0x%lx\n",
1646                   chip->io_port, chip->sb_port, chip->vc_port, chip->mpu_port, chip->game_port);
1647#endif
1648
1649        chip->ddma_port = chip->vc_port + 0x00;         /* fix from Thomas Sailer */
1650
1651        snd_es1938_chip_init(chip);
1652
1653        if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1654                snd_es1938_free(chip);
1655                return err;
1656        }
1657
1658        snd_card_set_dev(card, &pci->dev);
1659
1660        *rchip = chip;
1661        return 0;
1662}
1663
1664/* --------------------------------------------------------------------
1665 * Interrupt handler
1666 * -------------------------------------------------------------------- */
1667static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id)
1668{
1669        struct es1938 *chip = dev_id;
1670        unsigned char status, audiostatus;
1671        int handled = 0;
1672
1673        status = inb(SLIO_REG(chip, IRQCONTROL));
1674#if 0
1675        printk("Es1938debug - interrupt status: =0x%x\n", status);
1676#endif
1677        
1678        /* AUDIO 1 */
1679        if (status & 0x10) {
1680#if 0
1681                printk("Es1938debug - AUDIO channel 1 interrupt\n");
1682                printk("Es1938debug - AUDIO channel 1 DMAC DMA count: %u\n",
1683                       inw(SLDM_REG(chip, DMACOUNT)));
1684                printk("Es1938debug - AUDIO channel 1 DMAC DMA base: %u\n",
1685                       inl(SLDM_REG(chip, DMAADDR)));
1686                printk("Es1938debug - AUDIO channel 1 DMAC DMA status: 0x%x\n",
1687                       inl(SLDM_REG(chip, DMASTATUS)));
1688#endif
1689                /* clear irq */
1690                handled = 1;
1691                audiostatus = inb(SLSB_REG(chip, STATUS));
1692                if (chip->active & ADC1)
1693                        snd_pcm_period_elapsed(chip->capture_substream);
1694                else if (chip->active & DAC1)
1695                        snd_pcm_period_elapsed(chip->playback2_substream);
1696        }
1697        
1698        /* AUDIO 2 */
1699        if (status & 0x20) {
1700#if 0
1701                printk("Es1938debug - AUDIO channel 2 interrupt\n");
1702                printk("Es1938debug - AUDIO channel 2 DMAC DMA count: %u\n",
1703                       inw(SLIO_REG(chip, AUDIO2DMACOUNT)));
1704                printk("Es1938debug - AUDIO channel 2 DMAC DMA base: %u\n",
1705                       inl(SLIO_REG(chip, AUDIO2DMAADDR)));
1706
1707#endif
1708                /* clear irq */
1709                handled = 1;
1710                snd_es1938_mixer_bits(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x80, 0);
1711                if (chip->active & DAC2)
1712                        snd_pcm_period_elapsed(chip->playback1_substream);
1713        }
1714
1715        /* Hardware volume */
1716        if (status & 0x40) {
1717                int split = snd_es1938_mixer_read(chip, 0x64) & 0x80;
1718                handled = 1;
1719                snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
1720                snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
1721                if (!split) {
1722                        snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1723                                       &chip->master_switch->id);
1724                        snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1725                                       &chip->master_volume->id);
1726                }
1727                /* ack interrupt */
1728                snd_es1938_mixer_write(chip, 0x66, 0x00);
1729        }
1730
1731        /* MPU401 */
1732        if (status & 0x80) {
1733                // the following line is evil! It switches off MIDI interrupt handling after the first interrupt received.
1734                // replacing the last 0 by 0x40 works for ESS-Solo1, but just doing nothing works as well!
1735                // andreas@flying-snail.de
1736                // snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0); /* ack? */
1737                if (chip->rmidi) {
1738                        handled = 1;
1739                        snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
1740                }
1741        }
1742        return IRQ_RETVAL(handled);
1743}
1744
1745#define ES1938_DMA_SIZE 64
1746
1747static int __devinit snd_es1938_mixer(struct es1938 *chip)
1748{
1749        struct snd_card *card;
1750        unsigned int idx;
1751        int err;
1752
1753        card = chip->card;
1754
1755        strcpy(card->mixername, "ESS Solo-1");
1756
1757        for (idx = 0; idx < ARRAY_SIZE(snd_es1938_controls); idx++) {
1758                struct snd_kcontrol *kctl;
1759                kctl = snd_ctl_new1(&snd_es1938_controls[idx], chip);
1760                switch (idx) {
1761                        case 0:
1762                                chip->master_volume = kctl;
1763                                kctl->private_free = snd_es1938_hwv_free;
1764                                break;
1765                        case 1:
1766                                chip->master_switch = kctl;
1767                                kctl->private_free = snd_es1938_hwv_free;
1768                                break;
1769                        case 2:
1770                                chip->hw_volume = kctl;
1771                                kctl->private_free = snd_es1938_hwv_free;
1772                                break;
1773                        case 3:
1774                                chip->hw_switch = kctl;
1775                                kctl->private_free = snd_es1938_hwv_free;
1776                                break;
1777                        }
1778                if ((err = snd_ctl_add(card, kctl)) < 0)
1779                        return err;
1780        }
1781        return 0;
1782}
1783       
1784
1785static int __devinit snd_es1938_probe(struct pci_dev *pci,
1786                                      const struct pci_device_id *pci_id)
1787{
1788        static int dev;
1789        struct snd_card *card;
1790        struct es1938 *chip;
1791        struct snd_opl3 *opl3;
1792        int idx, err;
1793
1794        if (dev >= SNDRV_CARDS)
1795                return -ENODEV;
1796        if (!enable[dev]) {
1797                dev++;
1798                return -ENOENT;
1799        }
1800
1801        card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1802        if (card == NULL)
1803                return -ENOMEM;
1804        for (idx = 0; idx < 5; idx++) {
1805                if (pci_resource_start(pci, idx) == 0 ||
1806                    !(pci_resource_flags(pci, idx) & IORESOURCE_IO)) {
1807                        snd_card_free(card);
1808                        return -ENODEV;
1809                }
1810        }
1811        if ((err = snd_es1938_create(card, pci, &chip)) < 0) {
1812                snd_card_free(card);
1813                return err;
1814        }
1815        card->private_data = chip;
1816
1817        strcpy(card->driver, "ES1938");
1818        strcpy(card->shortname, "ESS ES1938 (Solo-1)");
1819        sprintf(card->longname, "%s rev %i, irq %i",
1820                card->shortname,
1821                chip->revision,
1822                chip->irq);
1823
1824        if ((err = snd_es1938_new_pcm(chip, 0)) < 0) {
1825                snd_card_free(card);
1826                return err;
1827        }
1828        if ((err = snd_es1938_mixer(chip)) < 0) {
1829                snd_card_free(card);
1830                return err;
1831        }
1832        if (snd_opl3_create(card,
1833                            SLSB_REG(chip, FMLOWADDR),
1834                            SLSB_REG(chip, FMHIGHADDR),
1835                            OPL3_HW_OPL3, 1, &opl3) < 0) {
1836                printk(KERN_ERR "es1938: OPL3 not detected at 0x%lx\n",
1837                           SLSB_REG(chip, FMLOWADDR));
1838        } else {
1839                if ((err = snd_opl3_timer_new(opl3, 0, 1)) < 0) {
1840                        snd_card_free(card);
1841                        return err;
1842                }
1843                if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1844                        snd_card_free(card);
1845                        return err;
1846                }
1847        }
1848        if (snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
1849                                chip->mpu_port, MPU401_INFO_INTEGRATED,
1850                                chip->irq, 0, &chip->rmidi) < 0) {
1851                printk(KERN_ERR "es1938: unable to initialize MPU-401\n");
1852        } else {
1853                // this line is vital for MIDI interrupt handling on ess-solo1
1854                // andreas@flying-snail.de
1855                snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0x40);
1856        }
1857
1858        snd_es1938_create_gameport(chip);
1859
1860        if ((err = snd_card_register(card)) < 0) {
1861                snd_card_free(card);
1862                return err;
1863        }
1864
1865        pci_set_drvdata(pci, card);
1866        dev++;
1867        return 0;
1868}
1869
1870static void __devexit snd_es1938_remove(struct pci_dev *pci)
1871{
1872        snd_card_free(pci_get_drvdata(pci));
1873        pci_set_drvdata(pci, NULL);
1874}
1875
1876static struct pci_driver driver = {
1877        .name = "ESS ES1938 (Solo-1)",
1878        .id_table = snd_es1938_ids,
1879        .probe = snd_es1938_probe,
1880        .remove = __devexit_p(snd_es1938_remove),
1881#ifdef CONFIG_PM
1882        .suspend = es1938_suspend,
1883        .resume = es1938_resume,
1884#endif
1885};
1886
1887static int __init alsa_card_es1938_init(void)
1888{
1889        return pci_register_driver(&driver);
1890}
1891
1892static void __exit alsa_card_es1938_exit(void)
1893{
1894        pci_unregister_driver(&driver);
1895}
1896
1897module_init(alsa_card_es1938_init)
1898module_exit(alsa_card_es1938_exit)
1899