git.oblomov.eu Git - linux-2.6/blob - sound/pci/es1938.c

   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
  68 MODULE_AUTHOR("Jaromir Koutek <miri@punknet.cz>");
  69 MODULE_DESCRIPTION("ESS Solo-1");
  70 MODULE_LICENSE("GPL");
  71 MODULE_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
  80 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  81 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  82 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;      /* Enable this card */
  83
  84 module_param_array(index, int, NULL, 0444);
  85 MODULE_PARM_DESC(index, "Index value for ESS Solo-1 soundcard.");
  86 module_param_array(id, charp, NULL, 0444);
  87 MODULE_PARM_DESC(id, "ID string for ESS Solo-1 soundcard.");
  88 module_param_array(enable, bool, NULL, 0444);
  89 MODULE_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
 197 struct 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
 244 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id);
 245
 246 static 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
 251 MODULE_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  * -----------------------------------------------------------------*/
 261 static 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  * -----------------------------------------------------------------*/
 276 static 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  * -----------------------------------------------------------------*/
 293 static 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  * -----------------------------------------------------------------*/
 317 static 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  * -----------------------------------------------------------------*/
 333 static 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  * -----------------------------------------------------------------*/
 347 static 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  * -----------------------------------------------------------------*/
 362 static 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  * -----------------------------------------------------------------*/
 380 static 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  * --------------------------------------------------------------------*/
 406 static 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  * --------------------------------------------------------------------*/
 445 static 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
 451 static 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
 466 static struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
 467         .nrats = 2,
 468         .rats = clocks,
 469 };
 470
 471
 472 static 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
 499 static 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
 507 static 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
 522 static 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
 543 static 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
 566 static 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
 596 static 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
 619 static 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  * --------------------------------------------------------------------*/
 635 static 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  * ------------------------------------------------------------------------------*/
 683 static 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
 720 static 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
 762 static 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 */
 782 static 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
 812 static 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
 824 static 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
 841 static 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
 853 static 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  */
 879 static 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
 890 static 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  * ----------------------------------------------------------------------*/
 898 static 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  * -----------------------------------------------------------------------*/
 920 static 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
 940 static 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
 955 static 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
 980 static 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
 988 static 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
1006 static 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
1017 static 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
1029 static 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
1055 static 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
1072 static 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
1080 static 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
1093 static 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
1102 static 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
1118 static 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
1128 static 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
1139 static 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
1148 static 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
1157 static 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
1166 static 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
1188 static 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
1200 static 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
1217 static 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
1249 static 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
1261 static 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
1287 static 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
1323 static 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
1329 static 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
1335 static 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
1341 static 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
1347 static 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
1353 static const DECLARE_TLV_DB_SCALE(db_scale_capture, 0, 150, 0);
1354
1355 static struct snd_kcontrol_new snd_es1938_controls[] = {
1356 ES1938_DOUBLE_TLV("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0,
1357                   db_scale_master),
1358 ES1938_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 },
1375 ES1938_SINGLE("Hardware Volume Split", 0, 0x64, 7, 1, 0),
1376 ES1938_DOUBLE_TLV("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0,
1377                   db_scale_line),
1378 ES1938_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1379 ES1938_DOUBLE_TLV("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0,
1380                   db_scale_mic),
1381 ES1938_DOUBLE_TLV("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0,
1382                   db_scale_line),
1383 ES1938_DOUBLE_TLV("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0,
1384                   db_scale_mic),
1385 ES1938_DOUBLE_TLV("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0,
1386                   db_scale_line),
1387 ES1938_DOUBLE_TLV("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0,
1388                   db_scale_capture),
1389 ES1938_SINGLE("PC Speaker Volume", 0, 0x3c, 0, 7, 0),
1390 ES1938_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1391 ES1938_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 },
1399 ES1938_DOUBLE_TLV("Mono Input Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0,
1400                   db_scale_line),
1401 ES1938_DOUBLE_TLV("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0,
1402                   db_scale_audio2),
1403 ES1938_DOUBLE_TLV("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0,
1404                   db_scale_mic),
1405 ES1938_DOUBLE_TLV("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0,
1406                   db_scale_line),
1407 ES1938_DOUBLE_TLV("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0,
1408                   db_scale_mic),
1409 ES1938_DOUBLE_TLV("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0,
1410                   db_scale_line),
1411 ES1938_DOUBLE_TLV("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0,
1412                   db_scale_line),
1413 ES1938_DOUBLE_TLV("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0,
1414                   db_scale_line),
1415 ES1938_DOUBLE_TLV("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0,
1416                   db_scale_audio2),
1417 ES1938_DOUBLE_TLV("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0,
1418                   db_scale_audio1),
1419 ES1938_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 },
1427 ES1938_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  */
1437 static 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
1468 static 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
1476 static 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                 synchronize_irq(chip->irq);
1492                 free_irq(chip->irq, chip);
1493                 chip->irq = -1;
1494         }
1495         pci_disable_device(pci);
1496         pci_save_state(pci);
1497         pci_set_power_state(pci, pci_choose_state(pci, state));
1498         return 0;
1499 }
1500
1501 static int es1938_resume(struct pci_dev *pci)
1502 {
1503         struct snd_card *card = pci_get_drvdata(pci);
1504         struct es1938 *chip = card->private_data;
1505         unsigned char *s, *d;
1506
1507         pci_set_power_state(pci, PCI_D0);
1508         pci_restore_state(pci);
1509         if (pci_enable_device(pci) < 0) {
1510                 printk(KERN_ERR "es1938: pci_enable_device failed, "
1511                        "disabling device\n");
1512                 snd_card_disconnect(card);
1513                 return -EIO;
1514         }
1515
1516         if (request_irq(pci->irq, snd_es1938_interrupt,
1517                         IRQF_SHARED, "ES1938", chip)) {
1518                 printk(KERN_ERR "es1938: unable to grab IRQ %d, "
1519                        "disabling device\n", pci->irq);
1520                 snd_card_disconnect(card);
1521                 return -EIO;
1522         }
1523         chip->irq = pci->irq;
1524         snd_es1938_chip_init(chip);
1525
1526         /* restore mixer-related registers */
1527         for (s = saved_regs, d = chip->saved_regs; *s; s++, d++) {
1528                 if (*s < 0xa0)
1529                         snd_es1938_mixer_write(chip, *s, *d);
1530                 else
1531                         snd_es1938_write(chip, *s, *d);
1532         }
1533
1534         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1535         return 0;
1536 }
1537 #endif /* CONFIG_PM */
1538
1539 #ifdef SUPPORT_JOYSTICK
1540 static int __devinit snd_es1938_create_gameport(struct es1938 *chip)
1541 {
1542         struct gameport *gp;
1543
1544         chip->gameport = gp = gameport_allocate_port();
1545         if (!gp) {
1546                 printk(KERN_ERR "es1938: cannot allocate memory for gameport\n");
1547                 return -ENOMEM;
1548         }
1549
1550         gameport_set_name(gp, "ES1938");
1551         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1552         gameport_set_dev_parent(gp, &chip->pci->dev);
1553         gp->io = chip->game_port;
1554
1555         gameport_register_port(gp);
1556
1557         return 0;
1558 }
1559
1560 static void snd_es1938_free_gameport(struct es1938 *chip)
1561 {
1562         if (chip->gameport) {
1563                 gameport_unregister_port(chip->gameport);
1564                 chip->gameport = NULL;
1565         }
1566 }
1567 #else
1568 static inline int snd_es1938_create_gameport(struct es1938 *chip) { return -ENOSYS; }
1569 static inline void snd_es1938_free_gameport(struct es1938 *chip) { }
1570 #endif /* SUPPORT_JOYSTICK */
1571
1572 static int snd_es1938_free(struct es1938 *chip)
1573 {
1574         /* disable irqs */
1575         outb(0x00, SLIO_REG(chip, IRQCONTROL));
1576         if (chip->rmidi)
1577                 snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0);
1578
1579         snd_es1938_free_gameport(chip);
1580
1581         if (chip->irq >= 0) {
1582                 synchronize_irq(chip->irq);
1583                 free_irq(chip->irq, chip);
1584         }
1585         pci_release_regions(chip->pci);
1586         pci_disable_device(chip->pci);
1587         kfree(chip);
1588         return 0;
1589 }
1590
1591 static int snd_es1938_dev_free(struct snd_device *device)
1592 {
1593         struct es1938 *chip = device->device_data;
1594         return snd_es1938_free(chip);
1595 }
1596
1597 static int __devinit snd_es1938_create(struct snd_card *card,
1598                                     struct pci_dev * pci,
1599                                     struct es1938 ** rchip)
1600 {
1601         struct es1938 *chip;
1602         int err;
1603         static struct snd_device_ops ops = {
1604                 .dev_free =     snd_es1938_dev_free,
1605         };
1606
1607         *rchip = NULL;
1608
1609         /* enable PCI device */
1610         if ((err = pci_enable_device(pci)) < 0)
1611                 return err;
1612         /* check, if we can restrict PCI DMA transfers to 24 bits */
1613         if (pci_set_dma_mask(pci, DMA_24BIT_MASK) < 0 ||
1614             pci_set_consistent_dma_mask(pci, DMA_24BIT_MASK) < 0) {
1615                 snd_printk(KERN_ERR "architecture does not support 24bit PCI busmaster DMA\n");
1616                 pci_disable_device(pci);
1617                 return -ENXIO;
1618         }
1619
1620         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1621         if (chip == NULL) {
1622                 pci_disable_device(pci);
1623                 return -ENOMEM;
1624         }
1625         spin_lock_init(&chip->reg_lock);
1626         spin_lock_init(&chip->mixer_lock);
1627         chip->card = card;
1628         chip->pci = pci;
1629         chip->irq = -1;
1630         if ((err = pci_request_regions(pci, "ESS Solo-1")) < 0) {
1631                 kfree(chip);
1632                 pci_disable_device(pci);
1633                 return err;
1634         }
1635         chip->io_port = pci_resource_start(pci, 0);
1636         chip->sb_port = pci_resource_start(pci, 1);
1637         chip->vc_port = pci_resource_start(pci, 2);
1638         chip->mpu_port = pci_resource_start(pci, 3);
1639         chip->game_port = pci_resource_start(pci, 4);
1640         if (request_irq(pci->irq, snd_es1938_interrupt, IRQF_SHARED,
1641                         "ES1938", chip)) {
1642                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
1643                 snd_es1938_free(chip);
1644                 return -EBUSY;
1645         }
1646         chip->irq = pci->irq;
1647 #ifdef ES1938_DDEBUG
1648         snd_printk(KERN_DEBUG "create: io: 0x%lx, sb: 0x%lx, vc: 0x%lx, mpu: 0x%lx, game: 0x%lx\n",
1649                    chip->io_port, chip->sb_port, chip->vc_port, chip->mpu_port, chip->game_port);
1650 #endif
1651
1652         chip->ddma_port = chip->vc_port + 0x00;         /* fix from Thomas Sailer */
1653
1654         snd_es1938_chip_init(chip);
1655
1656         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1657                 snd_es1938_free(chip);
1658                 return err;
1659         }
1660
1661         snd_card_set_dev(card, &pci->dev);
1662
1663         *rchip = chip;
1664         return 0;
1665 }
1666
1667 /* --------------------------------------------------------------------
1668  * Interrupt handler
1669  * -------------------------------------------------------------------- */
1670 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id)
1671 {
1672         struct es1938 *chip = dev_id;
1673         unsigned char status, audiostatus;
1674         int handled = 0;
1675
1676         status = inb(SLIO_REG(chip, IRQCONTROL));
1677 #if 0
1678         printk("Es1938debug - interrupt status: =0x%x\n", status);
1679 #endif
1680
1681         /* AUDIO 1 */
1682         if (status & 0x10) {
1683 #if 0
1684                 printk("Es1938debug - AUDIO channel 1 interrupt\n");
1685                 printk("Es1938debug - AUDIO channel 1 DMAC DMA count: %u\n",
1686                        inw(SLDM_REG(chip, DMACOUNT)));
1687                 printk("Es1938debug - AUDIO channel 1 DMAC DMA base: %u\n",
1688                        inl(SLDM_REG(chip, DMAADDR)));
1689                 printk("Es1938debug - AUDIO channel 1 DMAC DMA status: 0x%x\n",
1690                        inl(SLDM_REG(chip, DMASTATUS)));
1691 #endif
1692                 /* clear irq */
1693                 handled = 1;
1694                 audiostatus = inb(SLSB_REG(chip, STATUS));
1695                 if (chip->active & ADC1)
1696                         snd_pcm_period_elapsed(chip->capture_substream);
1697                 else if (chip->active & DAC1)
1698                         snd_pcm_period_elapsed(chip->playback2_substream);
1699         }
1700
1701         /* AUDIO 2 */
1702         if (status & 0x20) {
1703 #if 0
1704                 printk("Es1938debug - AUDIO channel 2 interrupt\n");
1705                 printk("Es1938debug - AUDIO channel 2 DMAC DMA count: %u\n",
1706                        inw(SLIO_REG(chip, AUDIO2DMACOUNT)));
1707                 printk("Es1938debug - AUDIO channel 2 DMAC DMA base: %u\n",
1708                        inl(SLIO_REG(chip, AUDIO2DMAADDR)));
1709
1710 #endif
1711                 /* clear irq */
1712                 handled = 1;
1713                 snd_es1938_mixer_bits(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x80, 0);
1714                 if (chip->active & DAC2)
1715                         snd_pcm_period_elapsed(chip->playback1_substream);
1716         }
1717
1718         /* Hardware volume */
1719         if (status & 0x40) {
1720                 int split = snd_es1938_mixer_read(chip, 0x64) & 0x80;
1721                 handled = 1;
1722                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
1723                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
1724                 if (!split) {
1725                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1726                                        &chip->master_switch->id);
1727                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1728                                        &chip->master_volume->id);
1729                 }
1730                 /* ack interrupt */
1731                 snd_es1938_mixer_write(chip, 0x66, 0x00);
1732         }
1733
1734         /* MPU401 */
1735         if (status & 0x80) {
1736                 // the following line is evil! It switches off MIDI interrupt handling after the first interrupt received.
1737                 // replacing the last 0 by 0x40 works for ESS-Solo1, but just doing nothing works as well!
1738                 // andreas@flying-snail.de
1739                 // snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0); /* ack? */
1740                 if (chip->rmidi) {
1741                         handled = 1;
1742                         snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
1743                 }
1744         }
1745         return IRQ_RETVAL(handled);
1746 }
1747
1748 #define ES1938_DMA_SIZE 64
1749
1750 static int __devinit snd_es1938_mixer(struct es1938 *chip)
1751 {
1752         struct snd_card *card;
1753         unsigned int idx;
1754         int err;
1755
1756         card = chip->card;
1757
1758         strcpy(card->mixername, "ESS Solo-1");
1759
1760         for (idx = 0; idx < ARRAY_SIZE(snd_es1938_controls); idx++) {
1761                 struct snd_kcontrol *kctl;
1762                 kctl = snd_ctl_new1(&snd_es1938_controls[idx], chip);
1763                 switch (idx) {
1764                         case 0:
1765                                 chip->master_volume = kctl;
1766                                 kctl->private_free = snd_es1938_hwv_free;
1767                                 break;
1768                         case 1:
1769                                 chip->master_switch = kctl;
1770                                 kctl->private_free = snd_es1938_hwv_free;
1771                                 break;
1772                         case 2:
1773                                 chip->hw_volume = kctl;
1774                                 kctl->private_free = snd_es1938_hwv_free;
1775                                 break;
1776                         case 3:
1777                                 chip->hw_switch = kctl;
1778                                 kctl->private_free = snd_es1938_hwv_free;
1779                                 break;
1780                         }
1781                 if ((err = snd_ctl_add(card, kctl)) < 0)
1782                         return err;
1783         }
1784         return 0;
1785 }
1786
1787
1788 static int __devinit snd_es1938_probe(struct pci_dev *pci,
1789                                       const struct pci_device_id *pci_id)
1790 {
1791         static int dev;
1792         struct snd_card *card;
1793         struct es1938 *chip;
1794         struct snd_opl3 *opl3;
1795         int idx, err;
1796
1797         if (dev >= SNDRV_CARDS)
1798                 return -ENODEV;
1799         if (!enable[dev]) {
1800                 dev++;
1801                 return -ENOENT;
1802         }
1803
1804         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
1805         if (card == NULL)
1806                 return -ENOMEM;
1807         for (idx = 0; idx < 5; idx++) {
1808                 if (pci_resource_start(pci, idx) == 0 ||
1809                     !(pci_resource_flags(pci, idx) & IORESOURCE_IO)) {
1810                         snd_card_free(card);
1811                         return -ENODEV;
1812                 }
1813         }
1814         if ((err = snd_es1938_create(card, pci, &chip)) < 0) {
1815                 snd_card_free(card);
1816                 return err;
1817         }
1818         card->private_data = chip;
1819
1820         strcpy(card->driver, "ES1938");
1821         strcpy(card->shortname, "ESS ES1938 (Solo-1)");
1822         sprintf(card->longname, "%s rev %i, irq %i",
1823                 card->shortname,
1824                 chip->revision,
1825                 chip->irq);
1826
1827         if ((err = snd_es1938_new_pcm(chip, 0)) < 0) {
1828                 snd_card_free(card);
1829                 return err;
1830         }
1831         if ((err = snd_es1938_mixer(chip)) < 0) {
1832                 snd_card_free(card);
1833                 return err;
1834         }
1835         if (snd_opl3_create(card,
1836                             SLSB_REG(chip, FMLOWADDR),
1837                             SLSB_REG(chip, FMHIGHADDR),
1838                             OPL3_HW_OPL3, 1, &opl3) < 0) {
1839                 printk(KERN_ERR "es1938: OPL3 not detected at 0x%lx\n",
1840                            SLSB_REG(chip, FMLOWADDR));
1841         } else {
1842                 if ((err = snd_opl3_timer_new(opl3, 0, 1)) < 0) {
1843                         snd_card_free(card);
1844                         return err;
1845                 }
1846                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1847                         snd_card_free(card);
1848                         return err;
1849                 }
1850         }
1851         if (snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
1852                                 chip->mpu_port, MPU401_INFO_INTEGRATED,
1853                                 chip->irq, 0, &chip->rmidi) < 0) {
1854                 printk(KERN_ERR "es1938: unable to initialize MPU-401\n");
1855         } else {
1856                 // this line is vital for MIDI interrupt handling on ess-solo1
1857                 // andreas@flying-snail.de
1858                 snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0x40);
1859         }
1860
1861         snd_es1938_create_gameport(chip);
1862
1863         if ((err = snd_card_register(card)) < 0) {
1864                 snd_card_free(card);
1865                 return err;
1866         }
1867
1868         pci_set_drvdata(pci, card);
1869         dev++;
1870         return 0;
1871 }
1872
1873 static void __devexit snd_es1938_remove(struct pci_dev *pci)
1874 {
1875         snd_card_free(pci_get_drvdata(pci));
1876         pci_set_drvdata(pci, NULL);
1877 }
1878
1879 static struct pci_driver driver = {
1880         .name = "ESS ES1938 (Solo-1)",
1881         .id_table = snd_es1938_ids,
1882         .probe = snd_es1938_probe,
1883         .remove = __devexit_p(snd_es1938_remove),
1884 #ifdef CONFIG_PM
1885         .suspend = es1938_suspend,
1886         .resume = es1938_resume,
1887 #endif
1888 };
1889
1890 static int __init alsa_card_es1938_init(void)
1891 {
1892         return pci_register_driver(&driver);
1893 }
1894
1895 static void __exit alsa_card_es1938_exit(void)
1896 {
1897         pci_unregister_driver(&driver);
1898 }
1899
1900 module_init(alsa_card_es1938_init)
1901 module_exit(alsa_card_es1938_exit)