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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@suse.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 <sound/driver.h>
  51 #include <linux/init.h>
  52 #include <linux/interrupt.h>
  53 #include <linux/pci.h>
  54 #include <linux/slab.h>
  55 #include <linux/gameport.h>
  56 #include <linux/moduleparam.h>
  57 #include <linux/delay.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
  65 #include <asm/io.h>
  66
  67 MODULE_AUTHOR("Jaromir Koutek <miri@punknet.cz>");
  68 MODULE_DESCRIPTION("ESS Solo-1");
  69 MODULE_LICENSE("GPL");
  70 MODULE_SUPPORTED_DEVICE("{{ESS,ES1938},"
  71                 "{ESS,ES1946},"
  72                 "{ESS,ES1969},"
  73                 "{TerraTec,128i PCI}}");
  74
  75 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
  76 #define SUPPORT_JOYSTICK 1
  77 #endif
  78
  79 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  80 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  81 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  82
  83 module_param_array(index, int, NULL, 0444);
  84 MODULE_PARM_DESC(index, "Index value for ESS Solo-1 soundcard.");
  85 module_param_array(id, charp, NULL, 0444);
  86 MODULE_PARM_DESC(id, "ID string for ESS Solo-1 soundcard.");
  87 module_param_array(enable, bool, NULL, 0444);
  88 MODULE_PARM_DESC(enable, "Enable ESS Solo-1 soundcard.");
  89
  90 #define SLIO_REG(chip, x) ((chip)->io_port + ESSIO_REG_##x)
  91
  92 #define SLDM_REG(chip, x) ((chip)->ddma_port + ESSDM_REG_##x)
  93
  94 #define SLSB_REG(chip, x) ((chip)->sb_port + ESSSB_REG_##x)
  95
  96 #define SL_PCI_LEGACYCONTROL            0x40
  97 #define SL_PCI_CONFIG                   0x50
  98 #define SL_PCI_DDMACONTROL              0x60
  99
 100 #define ESSIO_REG_AUDIO2DMAADDR         0
 101 #define ESSIO_REG_AUDIO2DMACOUNT        4
 102 #define ESSIO_REG_AUDIO2MODE            6
 103 #define ESSIO_REG_IRQCONTROL            7
 104
 105 #define ESSDM_REG_DMAADDR               0x00
 106 #define ESSDM_REG_DMACOUNT              0x04
 107 #define ESSDM_REG_DMACOMMAND            0x08
 108 #define ESSDM_REG_DMASTATUS             0x08
 109 #define ESSDM_REG_DMAMODE               0x0b
 110 #define ESSDM_REG_DMACLEAR              0x0d
 111 #define ESSDM_REG_DMAMASK               0x0f
 112
 113 #define ESSSB_REG_FMLOWADDR             0x00
 114 #define ESSSB_REG_FMHIGHADDR            0x02
 115 #define ESSSB_REG_MIXERADDR             0x04
 116 #define ESSSB_REG_MIXERDATA             0x05
 117
 118 #define ESSSB_IREG_AUDIO1               0x14
 119 #define ESSSB_IREG_MICMIX               0x1a
 120 #define ESSSB_IREG_RECSRC               0x1c
 121 #define ESSSB_IREG_MASTER               0x32
 122 #define ESSSB_IREG_FM                   0x36
 123 #define ESSSB_IREG_AUXACD               0x38
 124 #define ESSSB_IREG_AUXB                 0x3a
 125 #define ESSSB_IREG_PCSPEAKER            0x3c
 126 #define ESSSB_IREG_LINE                 0x3e
 127 #define ESSSB_IREG_SPATCONTROL          0x50
 128 #define ESSSB_IREG_SPATLEVEL            0x52
 129 #define ESSSB_IREG_MASTER_LEFT          0x60
 130 #define ESSSB_IREG_MASTER_RIGHT         0x62
 131 #define ESSSB_IREG_MPU401CONTROL        0x64
 132 #define ESSSB_IREG_MICMIXRECORD         0x68
 133 #define ESSSB_IREG_AUDIO2RECORD         0x69
 134 #define ESSSB_IREG_AUXACDRECORD         0x6a
 135 #define ESSSB_IREG_FMRECORD             0x6b
 136 #define ESSSB_IREG_AUXBRECORD           0x6c
 137 #define ESSSB_IREG_MONO                 0x6d
 138 #define ESSSB_IREG_LINERECORD           0x6e
 139 #define ESSSB_IREG_MONORECORD           0x6f
 140 #define ESSSB_IREG_AUDIO2SAMPLE         0x70
 141 #define ESSSB_IREG_AUDIO2MODE           0x71
 142 #define ESSSB_IREG_AUDIO2FILTER         0x72
 143 #define ESSSB_IREG_AUDIO2TCOUNTL        0x74
 144 #define ESSSB_IREG_AUDIO2TCOUNTH        0x76
 145 #define ESSSB_IREG_AUDIO2CONTROL1       0x78
 146 #define ESSSB_IREG_AUDIO2CONTROL2       0x7a
 147 #define ESSSB_IREG_AUDIO2               0x7c
 148
 149 #define ESSSB_REG_RESET                 0x06
 150
 151 #define ESSSB_REG_READDATA              0x0a
 152 #define ESSSB_REG_WRITEDATA             0x0c
 153 #define ESSSB_REG_READSTATUS            0x0c
 154
 155 #define ESSSB_REG_STATUS                0x0e
 156
 157 #define ESS_CMD_EXTSAMPLERATE           0xa1
 158 #define ESS_CMD_FILTERDIV               0xa2
 159 #define ESS_CMD_DMACNTRELOADL           0xa4
 160 #define ESS_CMD_DMACNTRELOADH           0xa5
 161 #define ESS_CMD_ANALOGCONTROL           0xa8
 162 #define ESS_CMD_IRQCONTROL              0xb1
 163 #define ESS_CMD_DRQCONTROL              0xb2
 164 #define ESS_CMD_RECLEVEL                0xb4
 165 #define ESS_CMD_SETFORMAT               0xb6
 166 #define ESS_CMD_SETFORMAT2              0xb7
 167 #define ESS_CMD_DMACONTROL              0xb8
 168 #define ESS_CMD_DMATYPE                 0xb9
 169 #define ESS_CMD_OFFSETLEFT              0xba
 170 #define ESS_CMD_OFFSETRIGHT             0xbb
 171 #define ESS_CMD_READREG                 0xc0
 172 #define ESS_CMD_ENABLEEXT               0xc6
 173 #define ESS_CMD_PAUSEDMA                0xd0
 174 #define ESS_CMD_ENABLEAUDIO1            0xd1
 175 #define ESS_CMD_STOPAUDIO1              0xd3
 176 #define ESS_CMD_AUDIO1STATUS            0xd8
 177 #define ESS_CMD_CONTDMA                 0xd4
 178 #define ESS_CMD_TESTIRQ                 0xf2
 179
 180 #define ESS_RECSRC_MIC          0
 181 #define ESS_RECSRC_AUXACD       2
 182 #define ESS_RECSRC_AUXB         5
 183 #define ESS_RECSRC_LINE         6
 184 #define ESS_RECSRC_NONE         7
 185
 186 #define DAC1 0x01
 187 #define ADC1 0x02
 188 #define DAC2 0x04
 189
 190 /*
 191
 192  */
 193
 194 typedef struct _snd_es1938 es1938_t;
 195
 196 #define SAVED_REG_SIZE  32 /* max. number of registers to save */
 197
 198 struct _snd_es1938 {
 199         int irq;
 200
 201         unsigned long io_port;
 202         unsigned long sb_port;
 203         unsigned long vc_port;
 204         unsigned long mpu_port;
 205         unsigned long game_port;
 206         unsigned long ddma_port;
 207
 208         unsigned char irqmask;
 209         unsigned char revision;
 210
 211         snd_kcontrol_t *hw_volume;
 212         snd_kcontrol_t *hw_switch;
 213         snd_kcontrol_t *master_volume;
 214         snd_kcontrol_t *master_switch;
 215
 216         struct pci_dev *pci;
 217         snd_card_t *card;
 218         snd_pcm_t *pcm;
 219         snd_pcm_substream_t *capture_substream;
 220         snd_pcm_substream_t *playback1_substream;
 221         snd_pcm_substream_t *playback2_substream;
 222         snd_kmixer_t *mixer;
 223         snd_rawmidi_t *rmidi;
 224
 225         unsigned int dma1_size;
 226         unsigned int dma2_size;
 227         unsigned int dma1_start;
 228         unsigned int dma2_start;
 229         unsigned int dma1_shift;
 230         unsigned int dma2_shift;
 231         unsigned int active;
 232
 233         spinlock_t reg_lock;
 234         spinlock_t mixer_lock;
 235         snd_info_entry_t *proc_entry;
 236
 237 #ifdef SUPPORT_JOYSTICK
 238         struct gameport *gameport;
 239 #endif
 240 #ifdef CONFIG_PM
 241         unsigned char saved_regs[SAVED_REG_SIZE];
 242 #endif
 243 };
 244
 245 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 246
 247 static struct pci_device_id snd_es1938_ids[] = {
 248         { 0x125d, 0x1969, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* Solo-1 */
 249         { 0, }
 250 };
 251
 252 MODULE_DEVICE_TABLE(pci, snd_es1938_ids);
 253
 254 #define RESET_LOOP_TIMEOUT      0x10000
 255 #define WRITE_LOOP_TIMEOUT      0x10000
 256 #define GET_LOOP_TIMEOUT        0x01000
 257
 258 #undef REG_DEBUG
 259 /* -----------------------------------------------------------------
 260  * Write to a mixer register
 261  * -----------------------------------------------------------------*/
 262 static void snd_es1938_mixer_write(es1938_t *chip, unsigned char reg, unsigned char val)
 263 {
 264         unsigned long flags;
 265         spin_lock_irqsave(&chip->mixer_lock, flags);
 266         outb(reg, SLSB_REG(chip, MIXERADDR));
 267         outb(val, SLSB_REG(chip, MIXERDATA));
 268         spin_unlock_irqrestore(&chip->mixer_lock, flags);
 269 #ifdef REG_DEBUG
 270         snd_printk("Mixer reg %02x set to %02x\n", reg, val);
 271 #endif
 272 }
 273
 274 /* -----------------------------------------------------------------
 275  * Read from a mixer register
 276  * -----------------------------------------------------------------*/
 277 static int snd_es1938_mixer_read(es1938_t *chip, unsigned char reg)
 278 {
 279         int data;
 280         unsigned long flags;
 281         spin_lock_irqsave(&chip->mixer_lock, flags);
 282         outb(reg, SLSB_REG(chip, MIXERADDR));
 283         data = inb(SLSB_REG(chip, MIXERDATA));
 284         spin_unlock_irqrestore(&chip->mixer_lock, flags);
 285 #ifdef REG_DEBUG
 286         snd_printk("Mixer reg %02x now is %02x\n", reg, data);
 287 #endif
 288         return data;
 289 }
 290
 291 /* -----------------------------------------------------------------
 292  * Write to some bits of a mixer register (return old value)
 293  * -----------------------------------------------------------------*/
 294 static int snd_es1938_mixer_bits(es1938_t *chip, unsigned char reg, 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("Mixer reg %02x was %02x, set to %02x\n", reg, old, new);
 307 #endif
 308         }
 309         spin_unlock_irqrestore(&chip->mixer_lock, flags);
 310         return oval;
 311 }
 312
 313 /* -----------------------------------------------------------------
 314  * Write command to Controller Registers
 315  * -----------------------------------------------------------------*/
 316 static void snd_es1938_write_cmd(es1938_t *chip, unsigned char cmd)
 317 {
 318         int i;
 319         unsigned char v;
 320         for (i = 0; i < WRITE_LOOP_TIMEOUT; i++) {
 321                 if (!(v = inb(SLSB_REG(chip, READSTATUS)) & 0x80)) {
 322                         outb(cmd, SLSB_REG(chip, WRITEDATA));
 323                         return;
 324                 }
 325         }
 326         printk("snd_es1938_write_cmd timeout (0x02%x/0x02%x)\n", cmd, v);
 327 }
 328
 329 /* -----------------------------------------------------------------
 330  * Read the Read Data Buffer
 331  * -----------------------------------------------------------------*/
 332 static int snd_es1938_get_byte(es1938_t *chip)
 333 {
 334         int i;
 335         unsigned char v;
 336         for (i = GET_LOOP_TIMEOUT; i; i--)
 337                 if ((v = inb(SLSB_REG(chip, STATUS))) & 0x80)
 338                         return inb(SLSB_REG(chip, READDATA));
 339         snd_printk("get_byte timeout: status 0x02%x\n", v);
 340         return -ENODEV;
 341 }
 342
 343 /* -----------------------------------------------------------------
 344  * Write value cmd register
 345  * -----------------------------------------------------------------*/
 346 static void snd_es1938_write(es1938_t *chip, unsigned char reg, unsigned char val)
 347 {
 348         unsigned long flags;
 349         spin_lock_irqsave(&chip->reg_lock, flags);
 350         snd_es1938_write_cmd(chip, reg);
 351         snd_es1938_write_cmd(chip, val);
 352         spin_unlock_irqrestore(&chip->reg_lock, flags);
 353 #ifdef REG_DEBUG
 354         snd_printk("Reg %02x set to %02x\n", reg, val);
 355 #endif
 356 }
 357
 358 /* -----------------------------------------------------------------
 359  * Read data from cmd register and return it
 360  * -----------------------------------------------------------------*/
 361 static unsigned char snd_es1938_read(es1938_t *chip, unsigned char reg)
 362 {
 363         unsigned char val;
 364         unsigned long flags;
 365         spin_lock_irqsave(&chip->reg_lock, flags);
 366         snd_es1938_write_cmd(chip, ESS_CMD_READREG);
 367         snd_es1938_write_cmd(chip, reg);
 368         val = snd_es1938_get_byte(chip);
 369         spin_unlock_irqrestore(&chip->reg_lock, flags);
 370 #ifdef REG_DEBUG
 371         snd_printk("Reg %02x now is %02x\n", reg, val);
 372 #endif
 373         return val;
 374 }
 375
 376 /* -----------------------------------------------------------------
 377  * Write data to cmd register and return old value
 378  * -----------------------------------------------------------------*/
 379 static int snd_es1938_bits(es1938_t *chip, unsigned char reg, unsigned char mask, unsigned char val)
 380 {
 381         unsigned long flags;
 382         unsigned char old, new, oval;
 383         spin_lock_irqsave(&chip->reg_lock, flags);
 384         snd_es1938_write_cmd(chip, ESS_CMD_READREG);
 385         snd_es1938_write_cmd(chip, reg);
 386         old = snd_es1938_get_byte(chip);
 387         oval = old & mask;
 388         if (val != oval) {
 389                 snd_es1938_write_cmd(chip, reg);
 390                 new = (old & ~mask) | (val & mask);
 391                 snd_es1938_write_cmd(chip, new);
 392 #ifdef REG_DEBUG
 393                 snd_printk("Reg %02x was %02x, set to %02x\n", reg, old, new);
 394 #endif
 395         }
 396         spin_unlock_irqrestore(&chip->reg_lock, flags);
 397         return oval;
 398 }
 399
 400 /* --------------------------------------------------------------------
 401  * Reset the chip
 402  * --------------------------------------------------------------------*/
 403 static void snd_es1938_reset(es1938_t *chip)
 404 {
 405         int i;
 406
 407         outb(3, SLSB_REG(chip, RESET));
 408         inb(SLSB_REG(chip, RESET));
 409         outb(0, SLSB_REG(chip, RESET));
 410         for (i = 0; i < RESET_LOOP_TIMEOUT; i++) {
 411                 if (inb(SLSB_REG(chip, STATUS)) & 0x80) {
 412                         if (inb(SLSB_REG(chip, READDATA)) == 0xaa)
 413                                 goto __next;
 414                 }
 415         }
 416         snd_printk("ESS Solo-1 reset failed\n");
 417
 418      __next:
 419         snd_es1938_write_cmd(chip, ESS_CMD_ENABLEEXT);
 420
 421         /* Demand transfer DMA: 4 bytes per DMA request */
 422         snd_es1938_write(chip, ESS_CMD_DMATYPE, 2);
 423
 424         /* Change behaviour of register A1
 425            4x oversampling
 426            2nd channel DAC asynchronous */
 427         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2MODE, 0x32);
 428         /* enable/select DMA channel and IRQ channel */
 429         snd_es1938_bits(chip, ESS_CMD_IRQCONTROL, 0xf0, 0x50);
 430         snd_es1938_bits(chip, ESS_CMD_DRQCONTROL, 0xf0, 0x50);
 431         snd_es1938_write_cmd(chip, ESS_CMD_ENABLEAUDIO1);
 432         /* Set spatializer parameters to recommended values */
 433         snd_es1938_mixer_write(chip, 0x54, 0x8f);
 434         snd_es1938_mixer_write(chip, 0x56, 0x95);
 435         snd_es1938_mixer_write(chip, 0x58, 0x94);
 436         snd_es1938_mixer_write(chip, 0x5a, 0x80);
 437 }
 438
 439 /* --------------------------------------------------------------------
 440  * Reset the FIFOs
 441  * --------------------------------------------------------------------*/
 442 static void snd_es1938_reset_fifo(es1938_t *chip)
 443 {
 444         outb(2, SLSB_REG(chip, RESET));
 445         outb(0, SLSB_REG(chip, RESET));
 446 }
 447
 448 static ratnum_t clocks[2] = {
 449         {
 450                 .num = 793800,
 451                 .den_min = 1,
 452                 .den_max = 128,
 453                 .den_step = 1,
 454         },
 455         {
 456                 .num = 768000,
 457                 .den_min = 1,
 458                 .den_max = 128,
 459                 .den_step = 1,
 460         }
 461 };
 462
 463 static snd_pcm_hw_constraint_ratnums_t hw_constraints_clocks = {
 464         .nrats = 2,
 465         .rats = clocks,
 466 };
 467
 468
 469 static void snd_es1938_rate_set(es1938_t *chip,
 470                                 snd_pcm_substream_t *substream,
 471                                 int mode)
 472 {
 473         unsigned int bits, div0;
 474         snd_pcm_runtime_t *runtime = substream->runtime;
 475         if (runtime->rate_num == clocks[0].num)
 476                 bits = 128 - runtime->rate_den;
 477         else
 478                 bits = 256 - runtime->rate_den;
 479
 480         /* set filter register */
 481         div0 = 256 - 7160000*20/(8*82*runtime->rate);
 482
 483         if (mode == DAC2) {
 484                 snd_es1938_mixer_write(chip, 0x70, bits);
 485                 snd_es1938_mixer_write(chip, 0x72, div0);
 486         } else {
 487                 snd_es1938_write(chip, 0xA1, bits);
 488                 snd_es1938_write(chip, 0xA2, div0);
 489         }
 490 }
 491
 492 /* --------------------------------------------------------------------
 493  * Configure Solo1 builtin DMA Controller
 494  * --------------------------------------------------------------------*/
 495
 496 static void snd_es1938_playback1_setdma(es1938_t *chip)
 497 {
 498         outb(0x00, SLIO_REG(chip, AUDIO2MODE));
 499         outl(chip->dma2_start, SLIO_REG(chip, AUDIO2DMAADDR));
 500         outw(0, SLIO_REG(chip, AUDIO2DMACOUNT));
 501         outw(chip->dma2_size, SLIO_REG(chip, AUDIO2DMACOUNT));
 502 }
 503
 504 static void snd_es1938_playback2_setdma(es1938_t *chip)
 505 {
 506         /* Enable DMA controller */
 507         outb(0xc4, SLDM_REG(chip, DMACOMMAND));
 508         /* 1. Master reset */
 509         outb(0, SLDM_REG(chip, DMACLEAR));
 510         /* 2. Mask DMA */
 511         outb(1, SLDM_REG(chip, DMAMASK));
 512         outb(0x18, SLDM_REG(chip, DMAMODE));
 513         outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
 514         outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
 515         /* 3. Unmask DMA */
 516         outb(0, SLDM_REG(chip, DMAMASK));
 517 }
 518
 519 static void snd_es1938_capture_setdma(es1938_t *chip)
 520 {
 521         /* Enable DMA controller */
 522         outb(0xc4, SLDM_REG(chip, DMACOMMAND));
 523         /* 1. Master reset */
 524         outb(0, SLDM_REG(chip, DMACLEAR));
 525         /* 2. Mask DMA */
 526         outb(1, SLDM_REG(chip, DMAMASK));
 527         outb(0x14, SLDM_REG(chip, DMAMODE));
 528         outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
 529         outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
 530         /* 3. Unmask DMA */
 531         outb(0, SLDM_REG(chip, DMAMASK));
 532 }
 533
 534 /* ----------------------------------------------------------------------
 535  *
 536  *                           *** PCM part ***
 537  */
 538
 539 static int snd_es1938_capture_trigger(snd_pcm_substream_t * substream,
 540                                       int cmd)
 541 {
 542         es1938_t *chip = snd_pcm_substream_chip(substream);
 543         int val;
 544         switch (cmd) {
 545         case SNDRV_PCM_TRIGGER_START:
 546         case SNDRV_PCM_TRIGGER_RESUME:
 547                 val = 0x0f;
 548                 chip->active |= ADC1;
 549                 break;
 550         case SNDRV_PCM_TRIGGER_STOP:
 551         case SNDRV_PCM_TRIGGER_SUSPEND:
 552                 val = 0x00;
 553                 chip->active &= ~ADC1;
 554                 break;
 555         default:
 556                 return -EINVAL;
 557         }
 558         snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
 559         return 0;
 560 }
 561
 562 static int snd_es1938_playback1_trigger(snd_pcm_substream_t * substream,
 563                                         int cmd)
 564 {
 565         es1938_t *chip = snd_pcm_substream_chip(substream);
 566         switch (cmd) {
 567         case SNDRV_PCM_TRIGGER_START:
 568         case SNDRV_PCM_TRIGGER_RESUME:
 569                 /* According to the documentation this should be:
 570                    0x13 but that value may randomly swap stereo channels */
 571                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x92);
 572                 udelay(10);
 573                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x93);
 574                 /* This two stage init gives the FIFO -> DAC connection time to
 575                  * settle before first data from DMA flows in.  This should ensure
 576                  * no swapping of stereo channels.  Report a bug if otherwise :-) */
 577                 outb(0x0a, SLIO_REG(chip, AUDIO2MODE));
 578                 chip->active |= DAC2;
 579                 break;
 580         case SNDRV_PCM_TRIGGER_STOP:
 581         case SNDRV_PCM_TRIGGER_SUSPEND:
 582                 outb(0, SLIO_REG(chip, AUDIO2MODE));
 583                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0);
 584                 chip->active &= ~DAC2;
 585                 break;
 586         default:
 587                 return -EINVAL;
 588         }
 589         return 0;
 590 }
 591
 592 static int snd_es1938_playback2_trigger(snd_pcm_substream_t * substream,
 593                                         int cmd)
 594 {
 595         es1938_t *chip = snd_pcm_substream_chip(substream);
 596         int val;
 597         switch (cmd) {
 598         case SNDRV_PCM_TRIGGER_START:
 599         case SNDRV_PCM_TRIGGER_RESUME:
 600                 val = 5;
 601                 chip->active |= DAC1;
 602                 break;
 603         case SNDRV_PCM_TRIGGER_STOP:
 604         case SNDRV_PCM_TRIGGER_SUSPEND:
 605                 val = 0;
 606                 chip->active &= ~DAC1;
 607                 break;
 608         default:
 609                 return -EINVAL;
 610         }
 611         snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
 612         return 0;
 613 }
 614
 615 static int snd_es1938_playback_trigger(snd_pcm_substream_t *substream,
 616                                        int cmd)
 617 {
 618         switch (substream->number) {
 619         case 0:
 620                 return snd_es1938_playback1_trigger(substream, cmd);
 621         case 1:
 622                 return snd_es1938_playback2_trigger(substream, cmd);
 623         }
 624         snd_BUG();
 625         return -EINVAL;
 626 }
 627
 628 /* --------------------------------------------------------------------
 629  * First channel for Extended Mode Audio 1 ADC Operation
 630  * --------------------------------------------------------------------*/
 631 static int snd_es1938_capture_prepare(snd_pcm_substream_t * substream)
 632 {
 633         es1938_t *chip = snd_pcm_substream_chip(substream);
 634         snd_pcm_runtime_t *runtime = substream->runtime;
 635         int u, is8, mono;
 636         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 637         unsigned int count = snd_pcm_lib_period_bytes(substream);
 638
 639         chip->dma1_size = size;
 640         chip->dma1_start = runtime->dma_addr;
 641
 642         mono = (runtime->channels > 1) ? 0 : 1;
 643         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
 644         u = snd_pcm_format_unsigned(runtime->format);
 645
 646         chip->dma1_shift = 2 - mono - is8;
 647
 648         snd_es1938_reset_fifo(chip);
 649
 650         /* program type */
 651         snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
 652
 653         /* set clock and counters */
 654         snd_es1938_rate_set(chip, substream, ADC1);
 655
 656         count = 0x10000 - count;
 657         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
 658         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
 659
 660         /* initialize and configure ADC */
 661         snd_es1938_write(chip, ESS_CMD_SETFORMAT2, u ? 0x51 : 0x71);
 662         snd_es1938_write(chip, ESS_CMD_SETFORMAT2, 0x90 |
 663                        (u ? 0x00 : 0x20) |
 664                        (is8 ? 0x00 : 0x04) |
 665                        (mono ? 0x40 : 0x08));
 666
 667         //      snd_es1938_reset_fifo(chip);
 668
 669         /* 11. configure system interrupt controller and DMA controller */
 670         snd_es1938_capture_setdma(chip);
 671
 672         return 0;
 673 }
 674
 675
 676 /* ------------------------------------------------------------------------------
 677  * Second Audio channel DAC Operation
 678  * ------------------------------------------------------------------------------*/
 679 static int snd_es1938_playback1_prepare(snd_pcm_substream_t * substream)
 680 {
 681         es1938_t *chip = snd_pcm_substream_chip(substream);
 682         snd_pcm_runtime_t *runtime = substream->runtime;
 683         int u, is8, mono;
 684         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 685         unsigned int count = snd_pcm_lib_period_bytes(substream);
 686
 687         chip->dma2_size = size;
 688         chip->dma2_start = runtime->dma_addr;
 689
 690         mono = (runtime->channels > 1) ? 0 : 1;
 691         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
 692         u = snd_pcm_format_unsigned(runtime->format);
 693
 694         chip->dma2_shift = 2 - mono - is8;
 695
 696         snd_es1938_reset_fifo(chip);
 697
 698         /* set clock and counters */
 699         snd_es1938_rate_set(chip, substream, DAC2);
 700
 701         count >>= 1;
 702         count = 0x10000 - count;
 703         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTL, count & 0xff);
 704         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTH, count >> 8);
 705
 706         /* initialize and configure Audio 2 DAC */
 707         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x40 | (u ? 0 : 4) | (mono ? 0 : 2) | (is8 ? 0 : 1));
 708
 709         /* program DMA */
 710         snd_es1938_playback1_setdma(chip);
 711
 712         return 0;
 713 }
 714
 715 static int snd_es1938_playback2_prepare(snd_pcm_substream_t * substream)
 716 {
 717         es1938_t *chip = snd_pcm_substream_chip(substream);
 718         snd_pcm_runtime_t *runtime = substream->runtime;
 719         int u, is8, mono;
 720         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 721         unsigned int count = snd_pcm_lib_period_bytes(substream);
 722
 723         chip->dma1_size = size;
 724         chip->dma1_start = runtime->dma_addr;
 725
 726         mono = (runtime->channels > 1) ? 0 : 1;
 727         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
 728         u = snd_pcm_format_unsigned(runtime->format);
 729
 730         chip->dma1_shift = 2 - mono - is8;
 731
 732         count = 0x10000 - count;
 733
 734         /* reset */
 735         snd_es1938_reset_fifo(chip);
 736
 737         snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
 738
 739         /* set clock and counters */
 740         snd_es1938_rate_set(chip, substream, DAC1);
 741         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
 742         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
 743
 744         /* initialized and configure DAC */
 745         snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x80 : 0x00);
 746         snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x51 : 0x71);
 747         snd_es1938_write(chip, ESS_CMD_SETFORMAT2,
 748                          0x90 | (mono ? 0x40 : 0x08) |
 749                          (is8 ? 0x00 : 0x04) | (u ? 0x00 : 0x20));
 750
 751         /* program DMA */
 752         snd_es1938_playback2_setdma(chip);
 753
 754         return 0;
 755 }
 756
 757 static int snd_es1938_playback_prepare(snd_pcm_substream_t *substream)
 758 {
 759         switch (substream->number) {
 760         case 0:
 761                 return snd_es1938_playback1_prepare(substream);
 762         case 1:
 763                 return snd_es1938_playback2_prepare(substream);
 764         }
 765         snd_BUG();
 766         return -EINVAL;
 767 }
 768
 769 static snd_pcm_uframes_t snd_es1938_capture_pointer(snd_pcm_substream_t * substream)
 770 {
 771         es1938_t *chip = snd_pcm_substream_chip(substream);
 772         size_t ptr;
 773         size_t old, new;
 774 #if 1
 775         /* This stuff is *needed*, don't ask why - AB */
 776         old = inw(SLDM_REG(chip, DMACOUNT));
 777         while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
 778                 old = new;
 779         ptr = chip->dma1_size - 1 - new;
 780 #else
 781         ptr = inl(SLDM_REG(chip, DMAADDR)) - chip->dma1_start;
 782 #endif
 783         return ptr >> chip->dma1_shift;
 784 }
 785
 786 static snd_pcm_uframes_t snd_es1938_playback1_pointer(snd_pcm_substream_t * substream)
 787 {
 788         es1938_t *chip = snd_pcm_substream_chip(substream);
 789         size_t ptr;
 790 #if 1
 791         ptr = chip->dma2_size - inw(SLIO_REG(chip, AUDIO2DMACOUNT));
 792 #else
 793         ptr = inl(SLIO_REG(chip, AUDIO2DMAADDR)) - chip->dma2_start;
 794 #endif
 795         return ptr >> chip->dma2_shift;
 796 }
 797
 798 static snd_pcm_uframes_t snd_es1938_playback2_pointer(snd_pcm_substream_t * substream)
 799 {
 800         es1938_t *chip = snd_pcm_substream_chip(substream);
 801         size_t ptr;
 802         size_t old, new;
 803 #if 1
 804         /* This stuff is *needed*, don't ask why - AB */
 805         old = inw(SLDM_REG(chip, DMACOUNT));
 806         while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
 807                 old = new;
 808         ptr = chip->dma1_size - 1 - new;
 809 #else
 810         ptr = inl(SLDM_REG(chip, DMAADDR)) - chip->dma1_start;
 811 #endif
 812         return ptr >> chip->dma1_shift;
 813 }
 814
 815 static snd_pcm_uframes_t snd_es1938_playback_pointer(snd_pcm_substream_t *substream)
 816 {
 817         switch (substream->number) {
 818         case 0:
 819                 return snd_es1938_playback1_pointer(substream);
 820         case 1:
 821                 return snd_es1938_playback2_pointer(substream);
 822         }
 823         snd_BUG();
 824         return -EINVAL;
 825 }
 826
 827 static int snd_es1938_capture_copy(snd_pcm_substream_t *substream,
 828                                    int channel,
 829                                    snd_pcm_uframes_t pos,
 830                                    void __user *dst,
 831                                    snd_pcm_uframes_t count)
 832 {
 833         snd_pcm_runtime_t *runtime = substream->runtime;
 834         es1938_t *chip = snd_pcm_substream_chip(substream);
 835         pos <<= chip->dma1_shift;
 836         count <<= chip->dma1_shift;
 837         snd_assert(pos + count <= chip->dma1_size, return -EINVAL);
 838         if (pos + count < chip->dma1_size) {
 839                 if (copy_to_user(dst, runtime->dma_area + pos + 1, count))
 840                         return -EFAULT;
 841         } else {
 842                 if (copy_to_user(dst, runtime->dma_area + pos + 1, count - 1))
 843                         return -EFAULT;
 844                 if (put_user(runtime->dma_area[0], ((unsigned char __user *)dst) + count - 1))
 845                         return -EFAULT;
 846         }
 847         return 0;
 848 }
 849
 850 /*
 851  * buffer management
 852  */
 853 static int snd_es1938_pcm_hw_params(snd_pcm_substream_t *substream,
 854                                     snd_pcm_hw_params_t * hw_params)
 855
 856 {
 857         int err;
 858
 859         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 860                 return err;
 861         return 0;
 862 }
 863
 864 static int snd_es1938_pcm_hw_free(snd_pcm_substream_t *substream)
 865 {
 866         return snd_pcm_lib_free_pages(substream);
 867 }
 868
 869 /* ----------------------------------------------------------------------
 870  * Audio1 Capture (ADC)
 871  * ----------------------------------------------------------------------*/
 872 static snd_pcm_hardware_t snd_es1938_capture =
 873 {
 874         .info =                 (SNDRV_PCM_INFO_INTERLEAVED |
 875                                 SNDRV_PCM_INFO_BLOCK_TRANSFER),
 876         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE,
 877         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 878         .rate_min =             6000,
 879         .rate_max =             48000,
 880         .channels_min =         1,
 881         .channels_max =         2,
 882         .buffer_bytes_max =     0x8000,       /* DMA controller screws on higher values */
 883         .period_bytes_min =     64,
 884         .period_bytes_max =     0x8000,
 885         .periods_min =          1,
 886         .periods_max =          1024,
 887         .fifo_size =            256,
 888 };
 889
 890 /* -----------------------------------------------------------------------
 891  * Audio2 Playback (DAC)
 892  * -----------------------------------------------------------------------*/
 893 static snd_pcm_hardware_t snd_es1938_playback =
 894 {
 895         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 896                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 897                                  SNDRV_PCM_INFO_MMAP_VALID),
 898         .formats =              SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE,
 899         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 900         .rate_min =             6000,
 901         .rate_max =             48000,
 902         .channels_min =         1,
 903         .channels_max =         2,
 904         .buffer_bytes_max =     0x8000,       /* DMA controller screws on higher values */
 905         .period_bytes_min =     64,
 906         .period_bytes_max =     0x8000,
 907         .periods_min =          1,
 908         .periods_max =          1024,
 909         .fifo_size =            256,
 910 };
 911
 912 static int snd_es1938_capture_open(snd_pcm_substream_t * substream)
 913 {
 914         es1938_t *chip = snd_pcm_substream_chip(substream);
 915         snd_pcm_runtime_t *runtime = substream->runtime;
 916
 917         if (chip->playback2_substream)
 918                 return -EAGAIN;
 919         chip->capture_substream = substream;
 920         runtime->hw = snd_es1938_capture;
 921         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 922                                       &hw_constraints_clocks);
 923         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
 924         return 0;
 925 }
 926
 927 static int snd_es1938_playback_open(snd_pcm_substream_t * substream)
 928 {
 929         es1938_t *chip = snd_pcm_substream_chip(substream);
 930         snd_pcm_runtime_t *runtime = substream->runtime;
 931
 932         switch (substream->number) {
 933         case 0:
 934                 chip->playback1_substream = substream;
 935                 break;
 936         case 1:
 937                 if (chip->capture_substream)
 938                         return -EAGAIN;
 939                 chip->playback2_substream = substream;
 940                 break;
 941         default:
 942                 snd_BUG();
 943                 return -EINVAL;
 944         }
 945         runtime->hw = snd_es1938_playback;
 946         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 947                                       &hw_constraints_clocks);
 948         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
 949         return 0;
 950 }
 951
 952 static int snd_es1938_capture_close(snd_pcm_substream_t * substream)
 953 {
 954         es1938_t *chip = snd_pcm_substream_chip(substream);
 955
 956         chip->capture_substream = NULL;
 957         return 0;
 958 }
 959
 960 static int snd_es1938_playback_close(snd_pcm_substream_t * substream)
 961 {
 962         es1938_t *chip = snd_pcm_substream_chip(substream);
 963
 964         switch (substream->number) {
 965         case 0:
 966                 chip->playback1_substream = NULL;
 967                 break;
 968         case 1:
 969                 chip->playback2_substream = NULL;
 970                 break;
 971         default:
 972                 snd_BUG();
 973                 return -EINVAL;
 974         }
 975         return 0;
 976 }
 977
 978 static snd_pcm_ops_t snd_es1938_playback_ops = {
 979         .open =         snd_es1938_playback_open,
 980         .close =        snd_es1938_playback_close,
 981         .ioctl =        snd_pcm_lib_ioctl,
 982         .hw_params =    snd_es1938_pcm_hw_params,
 983         .hw_free =      snd_es1938_pcm_hw_free,
 984         .prepare =      snd_es1938_playback_prepare,
 985         .trigger =      snd_es1938_playback_trigger,
 986         .pointer =      snd_es1938_playback_pointer,
 987 };
 988
 989 static snd_pcm_ops_t snd_es1938_capture_ops = {
 990         .open =         snd_es1938_capture_open,
 991         .close =        snd_es1938_capture_close,
 992         .ioctl =        snd_pcm_lib_ioctl,
 993         .hw_params =    snd_es1938_pcm_hw_params,
 994         .hw_free =      snd_es1938_pcm_hw_free,
 995         .prepare =      snd_es1938_capture_prepare,
 996         .trigger =      snd_es1938_capture_trigger,
 997         .pointer =      snd_es1938_capture_pointer,
 998         .copy =         snd_es1938_capture_copy,
 999 };
1000
1001 static void snd_es1938_free_pcm(snd_pcm_t *pcm)
1002 {
1003         snd_pcm_lib_preallocate_free_for_all(pcm);
1004 }
1005
1006 static int __devinit snd_es1938_new_pcm(es1938_t *chip, int device)
1007 {
1008         snd_pcm_t *pcm;
1009         int err;
1010
1011         if ((err = snd_pcm_new(chip->card, "es-1938-1946", device, 2, 1, &pcm)) < 0)
1012                 return err;
1013         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1938_playback_ops);
1014         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1938_capture_ops);
1015
1016         pcm->private_data = chip;
1017         pcm->private_free = snd_es1938_free_pcm;
1018         pcm->info_flags = 0;
1019         strcpy(pcm->name, "ESS Solo-1");
1020
1021         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1022                                               snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
1023
1024         chip->pcm = pcm;
1025         return 0;
1026 }
1027
1028 /* -------------------------------------------------------------------
1029  *
1030  *                       *** Mixer part ***
1031  */
1032
1033 static int snd_es1938_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1034 {
1035         static char *texts[8] = {
1036                 "Mic", "Mic Master", "CD", "AOUT",
1037                 "Mic1", "Mix", "Line", "Master"
1038         };
1039
1040         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1041         uinfo->count = 1;
1042         uinfo->value.enumerated.items = 8;
1043         if (uinfo->value.enumerated.item > 7)
1044                 uinfo->value.enumerated.item = 7;
1045         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
1046         return 0;
1047 }
1048
1049 static int snd_es1938_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1050 {
1051         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1052         ucontrol->value.enumerated.item[0] = snd_es1938_mixer_read(chip, 0x1c) & 0x07;
1053         return 0;
1054 }
1055
1056 static int snd_es1938_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1057 {
1058         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1059         unsigned char val = ucontrol->value.enumerated.item[0];
1060
1061         if (val > 7)
1062                 return -EINVAL;
1063         return snd_es1938_mixer_bits(chip, 0x1c, 0x07, val) != val;
1064 }
1065
1066 static int snd_es1938_info_spatializer_enable(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1067 {
1068         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1069         uinfo->count = 1;
1070         uinfo->value.integer.min = 0;
1071         uinfo->value.integer.max = 1;
1072         return 0;
1073 }
1074
1075 static int snd_es1938_get_spatializer_enable(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1076 {
1077         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1078         unsigned char val = snd_es1938_mixer_read(chip, 0x50);
1079         ucontrol->value.integer.value[0] = !!(val & 8);
1080         return 0;
1081 }
1082
1083 static int snd_es1938_put_spatializer_enable(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1084 {
1085         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1086         unsigned char oval, nval;
1087         int change;
1088         nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1089         oval = snd_es1938_mixer_read(chip, 0x50) & 0x0c;
1090         change = nval != oval;
1091         if (change) {
1092                 snd_es1938_mixer_write(chip, 0x50, nval & ~0x04);
1093                 snd_es1938_mixer_write(chip, 0x50, nval);
1094         }
1095         return change;
1096 }
1097
1098 static int snd_es1938_info_hw_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1099 {
1100         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1101         uinfo->count = 2;
1102         uinfo->value.integer.min = 0;
1103         uinfo->value.integer.max = 63;
1104         return 0;
1105 }
1106
1107 static int snd_es1938_get_hw_volume(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1108 {
1109         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1110         ucontrol->value.integer.value[0] = snd_es1938_mixer_read(chip, 0x61) & 0x3f;
1111         ucontrol->value.integer.value[1] = snd_es1938_mixer_read(chip, 0x63) & 0x3f;
1112         return 0;
1113 }
1114
1115 static int snd_es1938_info_hw_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1116 {
1117         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1118         uinfo->count = 2;
1119         uinfo->value.integer.min = 0;
1120         uinfo->value.integer.max = 1;
1121         return 0;
1122 }
1123
1124 static int snd_es1938_get_hw_switch(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1125 {
1126         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1127         ucontrol->value.integer.value[0] = !(snd_es1938_mixer_read(chip, 0x61) & 0x40);
1128         ucontrol->value.integer.value[1] = !(snd_es1938_mixer_read(chip, 0x63) & 0x40);
1129         return 0;
1130 }
1131
1132 static void snd_es1938_hwv_free(snd_kcontrol_t *kcontrol)
1133 {
1134         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1135         chip->master_volume = NULL;
1136         chip->master_switch = NULL;
1137         chip->hw_volume = NULL;
1138         chip->hw_switch = NULL;
1139 }
1140
1141 static int snd_es1938_reg_bits(es1938_t *chip, unsigned char reg,
1142                                unsigned char mask, unsigned char val)
1143 {
1144         if (reg < 0xa0)
1145                 return snd_es1938_mixer_bits(chip, reg, mask, val);
1146         else
1147                 return snd_es1938_bits(chip, reg, mask, val);
1148 }
1149
1150 static int snd_es1938_reg_read(es1938_t *chip, unsigned char reg)
1151 {
1152         if (reg < 0xa0)
1153                 return snd_es1938_mixer_read(chip, reg);
1154         else
1155                 return snd_es1938_read(chip, reg);
1156 }
1157
1158 #define ES1938_SINGLE(xname, xindex, reg, shift, mask, invert) \
1159 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1160   .info = snd_es1938_info_single, \
1161   .get = snd_es1938_get_single, .put = snd_es1938_put_single, \
1162   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1163
1164 static int snd_es1938_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1165 {
1166         int mask = (kcontrol->private_value >> 16) & 0xff;
1167
1168         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1169         uinfo->count = 1;
1170         uinfo->value.integer.min = 0;
1171         uinfo->value.integer.max = mask;
1172         return 0;
1173 }
1174
1175 static int snd_es1938_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1176 {
1177         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1178         int reg = kcontrol->private_value & 0xff;
1179         int shift = (kcontrol->private_value >> 8) & 0xff;
1180         int mask = (kcontrol->private_value >> 16) & 0xff;
1181         int invert = (kcontrol->private_value >> 24) & 0xff;
1182         int val;
1183
1184         val = snd_es1938_reg_read(chip, reg);
1185         ucontrol->value.integer.value[0] = (val >> shift) & mask;
1186         if (invert)
1187                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1188         return 0;
1189 }
1190
1191 static int snd_es1938_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1192 {
1193         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1194         int reg = kcontrol->private_value & 0xff;
1195         int shift = (kcontrol->private_value >> 8) & 0xff;
1196         int mask = (kcontrol->private_value >> 16) & 0xff;
1197         int invert = (kcontrol->private_value >> 24) & 0xff;
1198         unsigned char val;
1199
1200         val = (ucontrol->value.integer.value[0] & mask);
1201         if (invert)
1202                 val = mask - val;
1203         mask <<= shift;
1204         val <<= shift;
1205         return snd_es1938_reg_bits(chip, reg, mask, val) != val;
1206 }
1207
1208 #define ES1938_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1209 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1210   .info = snd_es1938_info_double, \
1211   .get = snd_es1938_get_double, .put = snd_es1938_put_double, \
1212   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1213
1214 static int snd_es1938_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
1215 {
1216         int mask = (kcontrol->private_value >> 24) & 0xff;
1217
1218         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1219         uinfo->count = 2;
1220         uinfo->value.integer.min = 0;
1221         uinfo->value.integer.max = mask;
1222         return 0;
1223 }
1224
1225 static int snd_es1938_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1226 {
1227         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1228         int left_reg = kcontrol->private_value & 0xff;
1229         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1230         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1231         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1232         int mask = (kcontrol->private_value >> 24) & 0xff;
1233         int invert = (kcontrol->private_value >> 22) & 1;
1234         unsigned char left, right;
1235
1236         left = snd_es1938_reg_read(chip, left_reg);
1237         if (left_reg != right_reg)
1238                 right = snd_es1938_reg_read(chip, right_reg);
1239         else
1240                 right = left;
1241         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1242         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1243         if (invert) {
1244                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1245                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1246         }
1247         return 0;
1248 }
1249
1250 static int snd_es1938_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1251 {
1252         es1938_t *chip = snd_kcontrol_chip(kcontrol);
1253         int left_reg = kcontrol->private_value & 0xff;
1254         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1255         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1256         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1257         int mask = (kcontrol->private_value >> 24) & 0xff;
1258         int invert = (kcontrol->private_value >> 22) & 1;
1259         int change;
1260         unsigned char val1, val2, mask1, mask2;
1261
1262         val1 = ucontrol->value.integer.value[0] & mask;
1263         val2 = ucontrol->value.integer.value[1] & mask;
1264         if (invert) {
1265                 val1 = mask - val1;
1266                 val2 = mask - val2;
1267         }
1268         val1 <<= shift_left;
1269         val2 <<= shift_right;
1270         mask1 = mask << shift_left;
1271         mask2 = mask << shift_right;
1272         if (left_reg != right_reg) {
1273                 change = 0;
1274                 if (snd_es1938_reg_bits(chip, left_reg, mask1, val1) != val1)
1275                         change = 1;
1276                 if (snd_es1938_reg_bits(chip, right_reg, mask2, val2) != val2)
1277                         change = 1;
1278         } else {
1279                 change = (snd_es1938_reg_bits(chip, left_reg, mask1 | mask2,
1280                                               val1 | val2) != (val1 | val2));
1281         }
1282         return change;
1283 }
1284
1285 static snd_kcontrol_new_t snd_es1938_controls[] = {
1286 ES1938_DOUBLE("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0),
1287 ES1938_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1288 {
1289         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1290         .name = "Hardware Master Playback Volume",
1291         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1292         .info = snd_es1938_info_hw_volume,
1293         .get = snd_es1938_get_hw_volume,
1294 },
1295 {
1296         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1297         .name = "Hardware Master Playback Switch",
1298         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1299         .info = snd_es1938_info_hw_switch,
1300         .get = snd_es1938_get_hw_switch,
1301 },
1302 ES1938_SINGLE("Hardware Volume Split", 0, 0x64, 7, 1, 0),
1303 ES1938_DOUBLE("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0),
1304 ES1938_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1305 ES1938_DOUBLE("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0),
1306 ES1938_DOUBLE("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1307 ES1938_DOUBLE("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0),
1308 ES1938_DOUBLE("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0),
1309 ES1938_DOUBLE("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0),
1310 ES1938_SINGLE("PC Speaker Volume", 0, 0x3c, 0, 7, 0),
1311 ES1938_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1312 ES1938_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
1313 {
1314         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1315         .name = "Capture Source",
1316         .info = snd_es1938_info_mux,
1317         .get = snd_es1938_get_mux,
1318         .put = snd_es1938_put_mux,
1319 },
1320 ES1938_DOUBLE("Mono Input Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0),
1321 ES1938_DOUBLE("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0),
1322 ES1938_DOUBLE("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0),
1323 ES1938_DOUBLE("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0),
1324 ES1938_DOUBLE("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0),
1325 ES1938_DOUBLE("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0),
1326 ES1938_DOUBLE("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0),
1327 ES1938_DOUBLE("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0),
1328 ES1938_DOUBLE("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0),
1329 ES1938_DOUBLE("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0),
1330 ES1938_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1331 {
1332         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1333         .name = "3D Control - Switch",
1334         .info = snd_es1938_info_spatializer_enable,
1335         .get = snd_es1938_get_spatializer_enable,
1336         .put = snd_es1938_put_spatializer_enable,
1337 },
1338 ES1938_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0)
1339 };
1340
1341
1342 /* ---------------------------------------------------------------------------- */
1343 /* ---------------------------------------------------------------------------- */
1344
1345 /*
1346  * initialize the chip - used by resume callback, too
1347  */
1348 static void snd_es1938_chip_init(es1938_t *chip)
1349 {
1350         /* reset chip */
1351         snd_es1938_reset(chip);
1352
1353         /* configure native mode */
1354
1355         /* enable bus master */
1356         pci_set_master(chip->pci);
1357
1358         /* disable legacy audio */
1359         pci_write_config_word(chip->pci, SL_PCI_LEGACYCONTROL, 0x805f);
1360
1361         /* set DDMA base */
1362         pci_write_config_word(chip->pci, SL_PCI_DDMACONTROL, chip->ddma_port | 1);
1363
1364         /* set DMA/IRQ policy */
1365         pci_write_config_dword(chip->pci, SL_PCI_CONFIG, 0);
1366
1367         /* enable Audio 1, Audio 2, MPU401 IRQ and HW volume IRQ*/
1368         outb(0xf0, SLIO_REG(chip, IRQCONTROL));
1369
1370         /* reset DMA */
1371         outb(0, SLDM_REG(chip, DMACLEAR));
1372 }
1373
1374 #ifdef CONFIG_PM
1375 /*
1376  * PM support
1377  */
1378
1379 static unsigned char saved_regs[SAVED_REG_SIZE+1] = {
1380         0x14, 0x1a, 0x1c, 0x3a, 0x3c, 0x3e, 0x36, 0x38,
1381         0x50, 0x52, 0x60, 0x61, 0x62, 0x63, 0x64, 0x68,
1382         0x69, 0x6a, 0x6b, 0x6d, 0x6e, 0x6f, 0x7c, 0x7d,
1383         0xa8, 0xb4,
1384 };
1385
1386
1387 static int es1938_suspend(snd_card_t *card, pm_message_t state)
1388 {
1389         es1938_t *chip = card->pm_private_data;
1390         unsigned char *s, *d;
1391
1392         snd_pcm_suspend_all(chip->pcm);
1393
1394         /* save mixer-related registers */
1395         for (s = saved_regs, d = chip->saved_regs; *s; s++, d++)
1396                 *d = snd_es1938_reg_read(chip, *s);
1397
1398         outb(0x00, SLIO_REG(chip, IRQCONTROL)); /* disable irqs */
1399         if (chip->irq >= 0)
1400                 free_irq(chip->irq, (void *)chip);
1401         pci_disable_device(chip->pci);
1402         return 0;
1403 }
1404
1405 static int es1938_resume(snd_card_t *card)
1406 {
1407         es1938_t *chip = card->pm_private_data;
1408         unsigned char *s, *d;
1409
1410         pci_enable_device(chip->pci);
1411         request_irq(chip->pci->irq, snd_es1938_interrupt,
1412                     SA_INTERRUPT|SA_SHIRQ, "ES1938", (void *)chip);
1413         chip->irq = chip->pci->irq;
1414         snd_es1938_chip_init(chip);
1415
1416         /* restore mixer-related registers */
1417         for (s = saved_regs, d = chip->saved_regs; *s; s++, d++) {
1418                 if (*s < 0xa0)
1419                         snd_es1938_mixer_write(chip, *s, *d);
1420                 else
1421                         snd_es1938_write(chip, *s, *d);
1422         }
1423
1424         return 0;
1425 }
1426 #endif /* CONFIG_PM */
1427
1428 #ifdef SUPPORT_JOYSTICK
1429 static int __devinit snd_es1938_create_gameport(es1938_t *chip)
1430 {
1431         struct gameport *gp;
1432
1433         chip->gameport = gp = gameport_allocate_port();
1434         if (!gp) {
1435                 printk(KERN_ERR "es1938: cannot allocate memory for gameport\n");
1436                 return -ENOMEM;
1437         }
1438
1439         gameport_set_name(gp, "ES1938");
1440         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1441         gameport_set_dev_parent(gp, &chip->pci->dev);
1442         gp->io = chip->game_port;
1443
1444         gameport_register_port(gp);
1445
1446         return 0;
1447 }
1448
1449 static void snd_es1938_free_gameport(es1938_t *chip)
1450 {
1451         if (chip->gameport) {
1452                 gameport_unregister_port(chip->gameport);
1453                 chip->gameport = NULL;
1454         }
1455 }
1456 #else
1457 static inline int snd_es1938_create_gameport(es1938_t *chip) { return -ENOSYS; }
1458 static inline void snd_es1938_free_gameport(es1938_t *chip) { }
1459 #endif /* SUPPORT_JOYSTICK */
1460
1461 static int snd_es1938_free(es1938_t *chip)
1462 {
1463         /* disable irqs */
1464         outb(0x00, SLIO_REG(chip, IRQCONTROL));
1465         if (chip->rmidi)
1466                 snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0);
1467
1468         snd_es1938_free_gameport(chip);
1469
1470         if (chip->irq >= 0)
1471                 free_irq(chip->irq, (void *)chip);
1472         pci_release_regions(chip->pci);
1473         pci_disable_device(chip->pci);
1474         kfree(chip);
1475         return 0;
1476 }
1477
1478 static int snd_es1938_dev_free(snd_device_t *device)
1479 {
1480         es1938_t *chip = device->device_data;
1481         return snd_es1938_free(chip);
1482 }
1483
1484 static int __devinit snd_es1938_create(snd_card_t * card,
1485                                     struct pci_dev * pci,
1486                                     es1938_t ** rchip)
1487 {
1488         es1938_t *chip;
1489         int err;
1490         static snd_device_ops_t ops = {
1491                 .dev_free =     snd_es1938_dev_free,
1492         };
1493
1494         *rchip = NULL;
1495
1496         /* enable PCI device */
1497         if ((err = pci_enable_device(pci)) < 0)
1498                 return err;
1499         /* check, if we can restrict PCI DMA transfers to 24 bits */
1500         if (pci_set_dma_mask(pci, 0x00ffffff) < 0 ||
1501             pci_set_consistent_dma_mask(pci, 0x00ffffff) < 0) {
1502                 snd_printk("architecture does not support 24bit PCI busmaster DMA\n");
1503                 pci_disable_device(pci);
1504                 return -ENXIO;
1505         }
1506
1507         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1508         if (chip == NULL) {
1509                 pci_disable_device(pci);
1510                 return -ENOMEM;
1511         }
1512         spin_lock_init(&chip->reg_lock);
1513         spin_lock_init(&chip->mixer_lock);
1514         chip->card = card;
1515         chip->pci = pci;
1516         if ((err = pci_request_regions(pci, "ESS Solo-1")) < 0) {
1517                 kfree(chip);
1518                 pci_disable_device(pci);
1519                 return err;
1520         }
1521         chip->io_port = pci_resource_start(pci, 0);
1522         chip->sb_port = pci_resource_start(pci, 1);
1523         chip->vc_port = pci_resource_start(pci, 2);
1524         chip->mpu_port = pci_resource_start(pci, 3);
1525         chip->game_port = pci_resource_start(pci, 4);
1526         if (request_irq(pci->irq, snd_es1938_interrupt, SA_INTERRUPT|SA_SHIRQ, "ES1938", (void *)chip)) {
1527                 snd_printk("unable to grab IRQ %d\n", pci->irq);
1528                 snd_es1938_free(chip);
1529                 return -EBUSY;
1530         }
1531         chip->irq = pci->irq;
1532 #ifdef ES1938_DDEBUG
1533         snd_printk("create: io: 0x%lx, sb: 0x%lx, vc: 0x%lx, mpu: 0x%lx, game: 0x%lx\n",
1534                    chip->io_port, chip->sb_port, chip->vc_port, chip->mpu_port, chip->game_port);
1535 #endif
1536
1537         chip->ddma_port = chip->vc_port + 0x00;         /* fix from Thomas Sailer */
1538
1539         snd_es1938_chip_init(chip);
1540
1541         snd_card_set_pm_callback(card, es1938_suspend, es1938_resume, chip);
1542
1543         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1544                 snd_es1938_free(chip);
1545                 return err;
1546         }
1547
1548         snd_card_set_dev(card, &pci->dev);
1549
1550         *rchip = chip;
1551         return 0;
1552 }
1553
1554 /* --------------------------------------------------------------------
1555  * Interrupt handler
1556  * -------------------------------------------------------------------- */
1557 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id, struct pt_regs *regs)
1558 {
1559         es1938_t *chip = dev_id;
1560         unsigned char status, audiostatus;
1561         int handled = 0;
1562
1563         status = inb(SLIO_REG(chip, IRQCONTROL));
1564 #if 0
1565         printk("Es1938debug - interrupt status: =0x%x\n", status);
1566 #endif
1567
1568         /* AUDIO 1 */
1569         if (status & 0x10) {
1570 #if 0
1571                 printk("Es1938debug - AUDIO channel 1 interrupt\n");
1572                 printk("Es1938debug - AUDIO channel 1 DMAC DMA count: %u\n", inw(SLDM_REG(chip, DMACOUNT)));
1573                 printk("Es1938debug - AUDIO channel 1 DMAC DMA base: %u\n", inl(SLDM_REG(chip, DMAADDR)));
1574                 printk("Es1938debug - AUDIO channel 1 DMAC DMA status: 0x%x\n", inl(SLDM_REG(chip, DMASTATUS)));
1575 #endif
1576                 /* clear irq */
1577                 handled = 1;
1578                 audiostatus = inb(SLSB_REG(chip, STATUS));
1579                 if (chip->active & ADC1)
1580                         snd_pcm_period_elapsed(chip->capture_substream);
1581                 else if (chip->active & DAC1)
1582                         snd_pcm_period_elapsed(chip->playback2_substream);
1583         }
1584
1585         /* AUDIO 2 */
1586         if (status & 0x20) {
1587 #if 0
1588                 printk("Es1938debug - AUDIO channel 2 interrupt\n");
1589                 printk("Es1938debug - AUDIO channel 2 DMAC DMA count: %u\n", inw(SLIO_REG(chip, AUDIO2DMACOUNT)));
1590                 printk("Es1938debug - AUDIO channel 2 DMAC DMA base: %u\n", inl(SLIO_REG(chip, AUDIO2DMAADDR)));
1591
1592 #endif
1593                 /* clear irq */
1594                 handled = 1;
1595                 snd_es1938_mixer_bits(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x80, 0);
1596                 if (chip->active & DAC2)
1597                         snd_pcm_period_elapsed(chip->playback1_substream);
1598         }
1599
1600         /* Hardware volume */
1601         if (status & 0x40) {
1602                 int split = snd_es1938_mixer_read(chip, 0x64) & 0x80;
1603                 handled = 1;
1604                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
1605                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
1606                 if (!split) {
1607                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_switch->id);
1608                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->master_volume->id);
1609                 }
1610                 /* ack interrupt */
1611                 snd_es1938_mixer_write(chip, 0x66, 0x00);
1612         }
1613
1614         /* MPU401 */
1615         if (status & 0x80) {
1616                 // the following line is evil! It switches off MIDI interrupt handling after the first interrupt received.
1617                 // replacing the last 0 by 0x40 works for ESS-Solo1, but just doing nothing works as well!
1618                 // andreas@flying-snail.de
1619                 // snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0); /* ack? */
1620                 if (chip->rmidi) {
1621                         handled = 1;
1622                         snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data, regs);
1623                 }
1624         }
1625         return IRQ_RETVAL(handled);
1626 }
1627
1628 #define ES1938_DMA_SIZE 64
1629
1630 static int __devinit snd_es1938_mixer(es1938_t *chip)
1631 {
1632         snd_card_t *card;
1633         unsigned int idx;
1634         int err;
1635
1636         card = chip->card;
1637
1638         strcpy(card->mixername, "ESS Solo-1");
1639
1640         for (idx = 0; idx < ARRAY_SIZE(snd_es1938_controls); idx++) {
1641                 snd_kcontrol_t *kctl;
1642                 kctl = snd_ctl_new1(&snd_es1938_controls[idx], chip);
1643                 switch (idx) {
1644                         case 0:
1645                                 chip->master_volume = kctl;
1646                                 kctl->private_free = snd_es1938_hwv_free;
1647                                 break;
1648                         case 1:
1649                                 chip->master_switch = kctl;
1650                                 kctl->private_free = snd_es1938_hwv_free;
1651                                 break;
1652                         case 2:
1653                                 chip->hw_volume = kctl;
1654                                 kctl->private_free = snd_es1938_hwv_free;
1655                                 break;
1656                         case 3:
1657                                 chip->hw_switch = kctl;
1658                                 kctl->private_free = snd_es1938_hwv_free;
1659                                 break;
1660                         }
1661                 if ((err = snd_ctl_add(card, kctl)) < 0)
1662                         return err;
1663         }
1664         return 0;
1665 }
1666
1667
1668 static int __devinit snd_es1938_probe(struct pci_dev *pci,
1669                                       const struct pci_device_id *pci_id)
1670 {
1671         static int dev;
1672         snd_card_t *card;
1673         es1938_t *chip;
1674         opl3_t *opl3;
1675         int idx, err;
1676
1677         if (dev >= SNDRV_CARDS)
1678                 return -ENODEV;
1679         if (!enable[dev]) {
1680                 dev++;
1681                 return -ENOENT;
1682         }
1683
1684         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1685         if (card == NULL)
1686                 return -ENOMEM;
1687         for (idx = 0; idx < 5; idx++) {
1688                 if (pci_resource_start(pci, idx) == 0 ||
1689                     !(pci_resource_flags(pci, idx) & IORESOURCE_IO)) {
1690                         snd_card_free(card);
1691                         return -ENODEV;
1692                 }
1693         }
1694         if ((err = snd_es1938_create(card, pci, &chip)) < 0) {
1695                 snd_card_free(card);
1696                 return err;
1697         }
1698
1699         strcpy(card->driver, "ES1938");
1700         strcpy(card->shortname, "ESS ES1938 (Solo-1)");
1701         sprintf(card->longname, "%s rev %i, irq %i",
1702                 card->shortname,
1703                 chip->revision,
1704                 chip->irq);
1705
1706         if ((err = snd_es1938_new_pcm(chip, 0)) < 0) {
1707                 snd_card_free(card);
1708                 return err;
1709         }
1710         if ((err = snd_es1938_mixer(chip)) < 0) {
1711                 snd_card_free(card);
1712                 return err;
1713         }
1714         if (snd_opl3_create(card,
1715                             SLSB_REG(chip, FMLOWADDR),
1716                             SLSB_REG(chip, FMHIGHADDR),
1717                             OPL3_HW_OPL3, 1, &opl3) < 0) {
1718                 printk(KERN_ERR "es1938: OPL3 not detected at 0x%lx\n",
1719                            SLSB_REG(chip, FMLOWADDR));
1720         } else {
1721                 if ((err = snd_opl3_timer_new(opl3, 0, 1)) < 0) {
1722                         snd_card_free(card);
1723                         return err;
1724                 }
1725                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1726                         snd_card_free(card);
1727                         return err;
1728                 }
1729         }
1730         if (snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
1731                                 chip->mpu_port, 1, chip->irq, 0, &chip->rmidi) < 0) {
1732                 printk(KERN_ERR "es1938: unable to initialize MPU-401\n");
1733         } else {
1734                 // this line is vital for MIDI interrupt handling on ess-solo1
1735                 // andreas@flying-snail.de
1736                 snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0x40);
1737         }
1738
1739         snd_es1938_create_gameport(chip);
1740
1741         if ((err = snd_card_register(card)) < 0) {
1742                 snd_card_free(card);
1743                 return err;
1744         }
1745
1746         pci_set_drvdata(pci, card);
1747         dev++;
1748         return 0;
1749 }
1750
1751 static void __devexit snd_es1938_remove(struct pci_dev *pci)
1752 {
1753         snd_card_free(pci_get_drvdata(pci));
1754         pci_set_drvdata(pci, NULL);
1755 }
1756
1757 static struct pci_driver driver = {
1758         .name = "ESS ES1938 (Solo-1)",
1759         .owner = THIS_MODULE,
1760         .id_table = snd_es1938_ids,
1761         .probe = snd_es1938_probe,
1762         .remove = __devexit_p(snd_es1938_remove),
1763         SND_PCI_PM_CALLBACKS
1764 };
1765
1766 static int __init alsa_card_es1938_init(void)
1767 {
1768         return pci_register_driver(&driver);
1769 }
1770
1771 static void __exit alsa_card_es1938_exit(void)
1772 {
1773         pci_unregister_driver(&driver);
1774 }
1775
1776 module_init(alsa_card_es1938_init)
1777 module_exit(alsa_card_es1938_exit)