sound/pci/es1938.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Driver for ESS Solo-1 (ES1938, ES1946, ES1969) soundcard
   4  *  Copyright (c) by Jaromir Koutek <miri@punknet.cz>,
   5  *                   Jaroslav Kysela <perex@perex.cz>,
   6  *                   Thomas Sailer <sailer@ife.ee.ethz.ch>,
   7  *                   Abramo Bagnara <abramo@alsa-project.org>,
   8  *                   Markus Gruber <gruber@eikon.tum.de>
   9  *
  10  * Rewritten from sonicvibes.c source.
  11  *
  12  *  TODO:
  13  *    Rewrite better spinlocks
  14  */
  15
  16 /*
  17   NOTES:
  18   - Capture data is written unaligned starting from dma_base + 1 so I need to
  19     disable mmap and to add a copy callback.
  20   - After several cycle of the following:
  21     while : ; do arecord -d1 -f cd -t raw | aplay -f cd ; done
  22     a "playback write error (DMA or IRQ trouble?)" may happen.
  23     This is due to playback interrupts not generated.
  24     I suspect a timing issue.
  25   - Sometimes the interrupt handler is invoked wrongly during playback.
  26     This generates some harmless "Unexpected hw_pointer: wrong interrupt
  27     acknowledge".
  28     I've seen that using small period sizes.
  29     Reproducible with:
  30     mpg123 test.mp3 &
  31     hdparm -t -T /dev/hda
  32 */
  33
  34
  35 #include <linux/init.h>
  36 #include <linux/interrupt.h>
  37 #include <linux/pci.h>
  38 #include <linux/slab.h>
  39 #include <linux/gameport.h>
  40 #include <linux/module.h>
  41 #include <linux/delay.h>
  42 #include <linux/dma-mapping.h>
  43 #include <linux/io.h>
  44 #include <sound/core.h>
  45 #include <sound/control.h>
  46 #include <sound/pcm.h>
  47 #include <sound/opl3.h>
  48 #include <sound/mpu401.h>
  49 #include <sound/initval.h>
  50 #include <sound/tlv.h>
  51
  52 MODULE_AUTHOR("Jaromir Koutek <miri@punknet.cz>");
  53 MODULE_DESCRIPTION("ESS Solo-1");
  54 MODULE_LICENSE("GPL");
  55 MODULE_SUPPORTED_DEVICE("{{ESS,ES1938},"
  56                 "{ESS,ES1946},"
  57                 "{ESS,ES1969},"
  58                 "{TerraTec,128i PCI}}");
  59
  60 #if IS_REACHABLE(CONFIG_GAMEPORT)
  61 #define SUPPORT_JOYSTICK 1
  62 #endif
  63
  64 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  65 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  66 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;     /* Enable this card */
  67
  68 module_param_array(index, int, NULL, 0444);
  69 MODULE_PARM_DESC(index, "Index value for ESS Solo-1 soundcard.");
  70 module_param_array(id, charp, NULL, 0444);
  71 MODULE_PARM_DESC(id, "ID string for ESS Solo-1 soundcard.");
  72 module_param_array(enable, bool, NULL, 0444);
  73 MODULE_PARM_DESC(enable, "Enable ESS Solo-1 soundcard.");
  74
  75 #define SLIO_REG(chip, x) ((chip)->io_port + ESSIO_REG_##x)
  76
  77 #define SLDM_REG(chip, x) ((chip)->ddma_port + ESSDM_REG_##x)
  78
  79 #define SLSB_REG(chip, x) ((chip)->sb_port + ESSSB_REG_##x)
  80
  81 #define SL_PCI_LEGACYCONTROL            0x40
  82 #define SL_PCI_CONFIG                   0x50
  83 #define SL_PCI_DDMACONTROL              0x60
  84
  85 #define ESSIO_REG_AUDIO2DMAADDR         0
  86 #define ESSIO_REG_AUDIO2DMACOUNT        4
  87 #define ESSIO_REG_AUDIO2MODE            6
  88 #define ESSIO_REG_IRQCONTROL            7
  89
  90 #define ESSDM_REG_DMAADDR               0x00
  91 #define ESSDM_REG_DMACOUNT              0x04
  92 #define ESSDM_REG_DMACOMMAND            0x08
  93 #define ESSDM_REG_DMASTATUS             0x08
  94 #define ESSDM_REG_DMAMODE               0x0b
  95 #define ESSDM_REG_DMACLEAR              0x0d
  96 #define ESSDM_REG_DMAMASK               0x0f
  97
  98 #define ESSSB_REG_FMLOWADDR             0x00
  99 #define ESSSB_REG_FMHIGHADDR            0x02
 100 #define ESSSB_REG_MIXERADDR             0x04
 101 #define ESSSB_REG_MIXERDATA             0x05
 102
 103 #define ESSSB_IREG_AUDIO1               0x14
 104 #define ESSSB_IREG_MICMIX               0x1a
 105 #define ESSSB_IREG_RECSRC               0x1c
 106 #define ESSSB_IREG_MASTER               0x32
 107 #define ESSSB_IREG_FM                   0x36
 108 #define ESSSB_IREG_AUXACD               0x38
 109 #define ESSSB_IREG_AUXB                 0x3a
 110 #define ESSSB_IREG_PCSPEAKER            0x3c
 111 #define ESSSB_IREG_LINE                 0x3e
 112 #define ESSSB_IREG_SPATCONTROL          0x50
 113 #define ESSSB_IREG_SPATLEVEL            0x52
 114 #define ESSSB_IREG_MASTER_LEFT          0x60
 115 #define ESSSB_IREG_MASTER_RIGHT         0x62
 116 #define ESSSB_IREG_MPU401CONTROL        0x64
 117 #define ESSSB_IREG_MICMIXRECORD         0x68
 118 #define ESSSB_IREG_AUDIO2RECORD         0x69
 119 #define ESSSB_IREG_AUXACDRECORD         0x6a
 120 #define ESSSB_IREG_FMRECORD             0x6b
 121 #define ESSSB_IREG_AUXBRECORD           0x6c
 122 #define ESSSB_IREG_MONO                 0x6d
 123 #define ESSSB_IREG_LINERECORD           0x6e
 124 #define ESSSB_IREG_MONORECORD           0x6f
 125 #define ESSSB_IREG_AUDIO2SAMPLE         0x70
 126 #define ESSSB_IREG_AUDIO2MODE           0x71
 127 #define ESSSB_IREG_AUDIO2FILTER         0x72
 128 #define ESSSB_IREG_AUDIO2TCOUNTL        0x74
 129 #define ESSSB_IREG_AUDIO2TCOUNTH        0x76
 130 #define ESSSB_IREG_AUDIO2CONTROL1       0x78
 131 #define ESSSB_IREG_AUDIO2CONTROL2       0x7a
 132 #define ESSSB_IREG_AUDIO2               0x7c
 133
 134 #define ESSSB_REG_RESET                 0x06
 135
 136 #define ESSSB_REG_READDATA              0x0a
 137 #define ESSSB_REG_WRITEDATA             0x0c
 138 #define ESSSB_REG_READSTATUS            0x0c
 139
 140 #define ESSSB_REG_STATUS                0x0e
 141
 142 #define ESS_CMD_EXTSAMPLERATE           0xa1
 143 #define ESS_CMD_FILTERDIV               0xa2
 144 #define ESS_CMD_DMACNTRELOADL           0xa4
 145 #define ESS_CMD_DMACNTRELOADH           0xa5
 146 #define ESS_CMD_ANALOGCONTROL           0xa8
 147 #define ESS_CMD_IRQCONTROL              0xb1
 148 #define ESS_CMD_DRQCONTROL              0xb2
 149 #define ESS_CMD_RECLEVEL                0xb4
 150 #define ESS_CMD_SETFORMAT               0xb6
 151 #define ESS_CMD_SETFORMAT2              0xb7
 152 #define ESS_CMD_DMACONTROL              0xb8
 153 #define ESS_CMD_DMATYPE                 0xb9
 154 #define ESS_CMD_OFFSETLEFT              0xba
 155 #define ESS_CMD_OFFSETRIGHT             0xbb
 156 #define ESS_CMD_READREG                 0xc0
 157 #define ESS_CMD_ENABLEEXT               0xc6
 158 #define ESS_CMD_PAUSEDMA                0xd0
 159 #define ESS_CMD_ENABLEAUDIO1            0xd1
 160 #define ESS_CMD_STOPAUDIO1              0xd3
 161 #define ESS_CMD_AUDIO1STATUS            0xd8
 162 #define ESS_CMD_CONTDMA                 0xd4
 163 #define ESS_CMD_TESTIRQ                 0xf2
 164
 165 #define ESS_RECSRC_MIC          0
 166 #define ESS_RECSRC_AUXACD       2
 167 #define ESS_RECSRC_AUXB         5
 168 #define ESS_RECSRC_LINE         6
 169 #define ESS_RECSRC_NONE         7
 170
 171 #define DAC1 0x01
 172 #define ADC1 0x02
 173 #define DAC2 0x04
 174
 175 /*
 176
 177  */
 178
 179 #define SAVED_REG_SIZE  32 /* max. number of registers to save */
 180
 181 struct es1938 {
 182         int irq;
 183
 184         unsigned long io_port;
 185         unsigned long sb_port;
 186         unsigned long vc_port;
 187         unsigned long mpu_port;
 188         unsigned long game_port;
 189         unsigned long ddma_port;
 190
 191         unsigned char irqmask;
 192         unsigned char revision;
 193
 194         struct snd_kcontrol *hw_volume;
 195         struct snd_kcontrol *hw_switch;
 196         struct snd_kcontrol *master_volume;
 197         struct snd_kcontrol *master_switch;
 198
 199         struct pci_dev *pci;
 200         struct snd_card *card;
 201         struct snd_pcm *pcm;
 202         struct snd_pcm_substream *capture_substream;
 203         struct snd_pcm_substream *playback1_substream;
 204         struct snd_pcm_substream *playback2_substream;
 205         struct snd_rawmidi *rmidi;
 206
 207         unsigned int dma1_size;
 208         unsigned int dma2_size;
 209         unsigned int dma1_start;
 210         unsigned int dma2_start;
 211         unsigned int dma1_shift;
 212         unsigned int dma2_shift;
 213         unsigned int last_capture_dmaaddr;
 214         unsigned int active;
 215
 216         spinlock_t reg_lock;
 217         spinlock_t mixer_lock;
 218         struct snd_info_entry *proc_entry;
 219
 220 #ifdef SUPPORT_JOYSTICK
 221         struct gameport *gameport;
 222 #endif
 223 #ifdef CONFIG_PM_SLEEP
 224         unsigned char saved_regs[SAVED_REG_SIZE];
 225 #endif
 226 };
 227
 228 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id);
 229
 230 static const struct pci_device_id snd_es1938_ids[] = {
 231         { PCI_VDEVICE(ESS, 0x1969), 0, },   /* Solo-1 */
 232         { 0, }
 233 };
 234
 235 MODULE_DEVICE_TABLE(pci, snd_es1938_ids);
 236
 237 #define RESET_LOOP_TIMEOUT      0x10000
 238 #define WRITE_LOOP_TIMEOUT      0x10000
 239 #define GET_LOOP_TIMEOUT        0x01000
 240
 241 /* -----------------------------------------------------------------
 242  * Write to a mixer register
 243  * -----------------------------------------------------------------*/
 244 static void snd_es1938_mixer_write(struct es1938 *chip, unsigned char reg, unsigned char val)
 245 {
 246         unsigned long flags;
 247         spin_lock_irqsave(&chip->mixer_lock, flags);
 248         outb(reg, SLSB_REG(chip, MIXERADDR));
 249         outb(val, SLSB_REG(chip, MIXERDATA));
 250         spin_unlock_irqrestore(&chip->mixer_lock, flags);
 251         dev_dbg(chip->card->dev, "Mixer reg %02x set to %02x\n", reg, val);
 252 }
 253
 254 /* -----------------------------------------------------------------
 255  * Read from a mixer register
 256  * -----------------------------------------------------------------*/
 257 static int snd_es1938_mixer_read(struct es1938 *chip, unsigned char reg)
 258 {
 259         int data;
 260         unsigned long flags;
 261         spin_lock_irqsave(&chip->mixer_lock, flags);
 262         outb(reg, SLSB_REG(chip, MIXERADDR));
 263         data = inb(SLSB_REG(chip, MIXERDATA));
 264         spin_unlock_irqrestore(&chip->mixer_lock, flags);
 265         dev_dbg(chip->card->dev, "Mixer reg %02x now is %02x\n", reg, data);
 266         return data;
 267 }
 268
 269 /* -----------------------------------------------------------------
 270  * Write to some bits of a mixer register (return old value)
 271  * -----------------------------------------------------------------*/
 272 static int snd_es1938_mixer_bits(struct es1938 *chip, unsigned char reg,
 273                                  unsigned char mask, unsigned char val)
 274 {
 275         unsigned long flags;
 276         unsigned char old, new, oval;
 277         spin_lock_irqsave(&chip->mixer_lock, flags);
 278         outb(reg, SLSB_REG(chip, MIXERADDR));
 279         old = inb(SLSB_REG(chip, MIXERDATA));
 280         oval = old & mask;
 281         if (val != oval) {
 282                 new = (old & ~mask) | (val & mask);
 283                 outb(new, SLSB_REG(chip, MIXERDATA));
 284                 dev_dbg(chip->card->dev,
 285                         "Mixer reg %02x was %02x, set to %02x\n",
 286                            reg, old, new);
 287         }
 288         spin_unlock_irqrestore(&chip->mixer_lock, flags);
 289         return oval;
 290 }
 291
 292 /* -----------------------------------------------------------------
 293  * Write command to Controller Registers
 294  * -----------------------------------------------------------------*/
 295 static void snd_es1938_write_cmd(struct es1938 *chip, unsigned char cmd)
 296 {
 297         int i;
 298         unsigned char v;
 299         for (i = 0; i < WRITE_LOOP_TIMEOUT; i++) {
 300                 if (!(v = inb(SLSB_REG(chip, READSTATUS)) & 0x80)) {
 301                         outb(cmd, SLSB_REG(chip, WRITEDATA));
 302                         return;
 303                 }
 304         }
 305         dev_err(chip->card->dev,
 306                 "snd_es1938_write_cmd timeout (0x02%x/0x02%x)\n", cmd, v);
 307 }
 308
 309 /* -----------------------------------------------------------------
 310  * Read the Read Data Buffer
 311  * -----------------------------------------------------------------*/
 312 static int snd_es1938_get_byte(struct es1938 *chip)
 313 {
 314         int i;
 315         unsigned char v;
 316         for (i = GET_LOOP_TIMEOUT; i; i--)
 317                 if ((v = inb(SLSB_REG(chip, STATUS))) & 0x80)
 318                         return inb(SLSB_REG(chip, READDATA));
 319         dev_err(chip->card->dev, "get_byte timeout: status 0x02%x\n", v);
 320         return -ENODEV;
 321 }
 322
 323 /* -----------------------------------------------------------------
 324  * Write value cmd register
 325  * -----------------------------------------------------------------*/
 326 static void snd_es1938_write(struct es1938 *chip, unsigned char reg, unsigned char val)
 327 {
 328         unsigned long flags;
 329         spin_lock_irqsave(&chip->reg_lock, flags);
 330         snd_es1938_write_cmd(chip, reg);
 331         snd_es1938_write_cmd(chip, val);
 332         spin_unlock_irqrestore(&chip->reg_lock, flags);
 333         dev_dbg(chip->card->dev, "Reg %02x set to %02x\n", reg, val);
 334 }
 335
 336 /* -----------------------------------------------------------------
 337  * Read data from cmd register and return it
 338  * -----------------------------------------------------------------*/
 339 static unsigned char snd_es1938_read(struct es1938 *chip, unsigned char reg)
 340 {
 341         unsigned char val;
 342         unsigned long flags;
 343         spin_lock_irqsave(&chip->reg_lock, flags);
 344         snd_es1938_write_cmd(chip, ESS_CMD_READREG);
 345         snd_es1938_write_cmd(chip, reg);
 346         val = snd_es1938_get_byte(chip);
 347         spin_unlock_irqrestore(&chip->reg_lock, flags);
 348         dev_dbg(chip->card->dev, "Reg %02x now is %02x\n", reg, val);
 349         return val;
 350 }
 351
 352 /* -----------------------------------------------------------------
 353  * Write data to cmd register and return old value
 354  * -----------------------------------------------------------------*/
 355 static int snd_es1938_bits(struct es1938 *chip, unsigned char reg, unsigned char mask,
 356                            unsigned char val)
 357 {
 358         unsigned long flags;
 359         unsigned char old, new, oval;
 360         spin_lock_irqsave(&chip->reg_lock, flags);
 361         snd_es1938_write_cmd(chip, ESS_CMD_READREG);
 362         snd_es1938_write_cmd(chip, reg);
 363         old = snd_es1938_get_byte(chip);
 364         oval = old & mask;
 365         if (val != oval) {
 366                 snd_es1938_write_cmd(chip, reg);
 367                 new = (old & ~mask) | (val & mask);
 368                 snd_es1938_write_cmd(chip, new);
 369                 dev_dbg(chip->card->dev, "Reg %02x was %02x, set to %02x\n",
 370                            reg, old, new);
 371         }
 372         spin_unlock_irqrestore(&chip->reg_lock, flags);
 373         return oval;
 374 }
 375
 376 /* --------------------------------------------------------------------
 377  * Reset the chip
 378  * --------------------------------------------------------------------*/
 379 static void snd_es1938_reset(struct es1938 *chip)
 380 {
 381         int i;
 382
 383         outb(3, SLSB_REG(chip, RESET));
 384         inb(SLSB_REG(chip, RESET));
 385         outb(0, SLSB_REG(chip, RESET));
 386         for (i = 0; i < RESET_LOOP_TIMEOUT; i++) {
 387                 if (inb(SLSB_REG(chip, STATUS)) & 0x80) {
 388                         if (inb(SLSB_REG(chip, READDATA)) == 0xaa)
 389                                 goto __next;
 390                 }
 391         }
 392         dev_err(chip->card->dev, "ESS Solo-1 reset failed\n");
 393
 394      __next:
 395         snd_es1938_write_cmd(chip, ESS_CMD_ENABLEEXT);
 396
 397         /* Demand transfer DMA: 4 bytes per DMA request */
 398         snd_es1938_write(chip, ESS_CMD_DMATYPE, 2);
 399
 400         /* Change behaviour of register A1
 401            4x oversampling
 402            2nd channel DAC asynchronous */
 403         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2MODE, 0x32);
 404         /* enable/select DMA channel and IRQ channel */
 405         snd_es1938_bits(chip, ESS_CMD_IRQCONTROL, 0xf0, 0x50);
 406         snd_es1938_bits(chip, ESS_CMD_DRQCONTROL, 0xf0, 0x50);
 407         snd_es1938_write_cmd(chip, ESS_CMD_ENABLEAUDIO1);
 408         /* Set spatializer parameters to recommended values */
 409         snd_es1938_mixer_write(chip, 0x54, 0x8f);
 410         snd_es1938_mixer_write(chip, 0x56, 0x95);
 411         snd_es1938_mixer_write(chip, 0x58, 0x94);
 412         snd_es1938_mixer_write(chip, 0x5a, 0x80);
 413 }
 414
 415 /* --------------------------------------------------------------------
 416  * Reset the FIFOs
 417  * --------------------------------------------------------------------*/
 418 static void snd_es1938_reset_fifo(struct es1938 *chip)
 419 {
 420         outb(2, SLSB_REG(chip, RESET));
 421         outb(0, SLSB_REG(chip, RESET));
 422 }
 423
 424 static const struct snd_ratnum clocks[2] = {
 425         {
 426                 .num = 793800,
 427                 .den_min = 1,
 428                 .den_max = 128,
 429                 .den_step = 1,
 430         },
 431         {
 432                 .num = 768000,
 433                 .den_min = 1,
 434                 .den_max = 128,
 435                 .den_step = 1,
 436         }
 437 };
 438
 439 static const struct snd_pcm_hw_constraint_ratnums hw_constraints_clocks = {
 440         .nrats = 2,
 441         .rats = clocks,
 442 };
 443
 444
 445 static void snd_es1938_rate_set(struct es1938 *chip,
 446                                 struct snd_pcm_substream *substream,
 447                                 int mode)
 448 {
 449         unsigned int bits, div0;
 450         struct snd_pcm_runtime *runtime = substream->runtime;
 451         if (runtime->rate_num == clocks[0].num)
 452                 bits = 128 - runtime->rate_den;
 453         else
 454                 bits = 256 - runtime->rate_den;
 455
 456         /* set filter register */
 457         div0 = 256 - 7160000*20/(8*82*runtime->rate);
 458
 459         if (mode == DAC2) {
 460                 snd_es1938_mixer_write(chip, 0x70, bits);
 461                 snd_es1938_mixer_write(chip, 0x72, div0);
 462         } else {
 463                 snd_es1938_write(chip, 0xA1, bits);
 464                 snd_es1938_write(chip, 0xA2, div0);
 465         }
 466 }
 467
 468 /* --------------------------------------------------------------------
 469  * Configure Solo1 builtin DMA Controller
 470  * --------------------------------------------------------------------*/
 471
 472 static void snd_es1938_playback1_setdma(struct es1938 *chip)
 473 {
 474         outb(0x00, SLIO_REG(chip, AUDIO2MODE));
 475         outl(chip->dma2_start, SLIO_REG(chip, AUDIO2DMAADDR));
 476         outw(0, SLIO_REG(chip, AUDIO2DMACOUNT));
 477         outw(chip->dma2_size, SLIO_REG(chip, AUDIO2DMACOUNT));
 478 }
 479
 480 static void snd_es1938_playback2_setdma(struct es1938 *chip)
 481 {
 482         /* Enable DMA controller */
 483         outb(0xc4, SLDM_REG(chip, DMACOMMAND));
 484         /* 1. Master reset */
 485         outb(0, SLDM_REG(chip, DMACLEAR));
 486         /* 2. Mask DMA */
 487         outb(1, SLDM_REG(chip, DMAMASK));
 488         outb(0x18, SLDM_REG(chip, DMAMODE));
 489         outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
 490         outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
 491         /* 3. Unmask DMA */
 492         outb(0, SLDM_REG(chip, DMAMASK));
 493 }
 494
 495 static void snd_es1938_capture_setdma(struct es1938 *chip)
 496 {
 497         /* Enable DMA controller */
 498         outb(0xc4, SLDM_REG(chip, DMACOMMAND));
 499         /* 1. Master reset */
 500         outb(0, SLDM_REG(chip, DMACLEAR));
 501         /* 2. Mask DMA */
 502         outb(1, SLDM_REG(chip, DMAMASK));
 503         outb(0x14, SLDM_REG(chip, DMAMODE));
 504         outl(chip->dma1_start, SLDM_REG(chip, DMAADDR));
 505         chip->last_capture_dmaaddr = chip->dma1_start;
 506         outw(chip->dma1_size - 1, SLDM_REG(chip, DMACOUNT));
 507         /* 3. Unmask DMA */
 508         outb(0, SLDM_REG(chip, DMAMASK));
 509 }
 510
 511 /* ----------------------------------------------------------------------
 512  *
 513  *                           *** PCM part ***
 514  */
 515
 516 static int snd_es1938_capture_trigger(struct snd_pcm_substream *substream,
 517                                       int cmd)
 518 {
 519         struct es1938 *chip = snd_pcm_substream_chip(substream);
 520         int val;
 521         switch (cmd) {
 522         case SNDRV_PCM_TRIGGER_START:
 523         case SNDRV_PCM_TRIGGER_RESUME:
 524                 val = 0x0f;
 525                 chip->active |= ADC1;
 526                 break;
 527         case SNDRV_PCM_TRIGGER_STOP:
 528         case SNDRV_PCM_TRIGGER_SUSPEND:
 529                 val = 0x00;
 530                 chip->active &= ~ADC1;
 531                 break;
 532         default:
 533                 return -EINVAL;
 534         }
 535         snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
 536         return 0;
 537 }
 538
 539 static int snd_es1938_playback1_trigger(struct snd_pcm_substream *substream,
 540                                         int cmd)
 541 {
 542         struct es1938 *chip = snd_pcm_substream_chip(substream);
 543         switch (cmd) {
 544         case SNDRV_PCM_TRIGGER_START:
 545         case SNDRV_PCM_TRIGGER_RESUME:
 546                 /* According to the documentation this should be:
 547                    0x13 but that value may randomly swap stereo channels */
 548                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x92);
 549                 udelay(10);
 550                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x93);
 551                 /* This two stage init gives the FIFO -> DAC connection time to
 552                  * settle before first data from DMA flows in.  This should ensure
 553                  * no swapping of stereo channels.  Report a bug if otherwise :-) */
 554                 outb(0x0a, SLIO_REG(chip, AUDIO2MODE));
 555                 chip->active |= DAC2;
 556                 break;
 557         case SNDRV_PCM_TRIGGER_STOP:
 558         case SNDRV_PCM_TRIGGER_SUSPEND:
 559                 outb(0, SLIO_REG(chip, AUDIO2MODE));
 560                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0);
 561                 chip->active &= ~DAC2;
 562                 break;
 563         default:
 564                 return -EINVAL;
 565         }
 566         return 0;
 567 }
 568
 569 static int snd_es1938_playback2_trigger(struct snd_pcm_substream *substream,
 570                                         int cmd)
 571 {
 572         struct es1938 *chip = snd_pcm_substream_chip(substream);
 573         int val;
 574         switch (cmd) {
 575         case SNDRV_PCM_TRIGGER_START:
 576         case SNDRV_PCM_TRIGGER_RESUME:
 577                 val = 5;
 578                 chip->active |= DAC1;
 579                 break;
 580         case SNDRV_PCM_TRIGGER_STOP:
 581         case SNDRV_PCM_TRIGGER_SUSPEND:
 582                 val = 0;
 583                 chip->active &= ~DAC1;
 584                 break;
 585         default:
 586                 return -EINVAL;
 587         }
 588         snd_es1938_write(chip, ESS_CMD_DMACONTROL, val);
 589         return 0;
 590 }
 591
 592 static int snd_es1938_playback_trigger(struct snd_pcm_substream *substream,
 593                                        int cmd)
 594 {
 595         switch (substream->number) {
 596         case 0:
 597                 return snd_es1938_playback1_trigger(substream, cmd);
 598         case 1:
 599                 return snd_es1938_playback2_trigger(substream, cmd);
 600         }
 601         snd_BUG();
 602         return -EINVAL;
 603 }
 604
 605 /* --------------------------------------------------------------------
 606  * First channel for Extended Mode Audio 1 ADC Operation
 607  * --------------------------------------------------------------------*/
 608 static int snd_es1938_capture_prepare(struct snd_pcm_substream *substream)
 609 {
 610         struct es1938 *chip = snd_pcm_substream_chip(substream);
 611         struct snd_pcm_runtime *runtime = substream->runtime;
 612         int u, is8, mono;
 613         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 614         unsigned int count = snd_pcm_lib_period_bytes(substream);
 615
 616         chip->dma1_size = size;
 617         chip->dma1_start = runtime->dma_addr;
 618
 619         mono = (runtime->channels > 1) ? 0 : 1;
 620         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
 621         u = snd_pcm_format_unsigned(runtime->format);
 622
 623         chip->dma1_shift = 2 - mono - is8;
 624
 625         snd_es1938_reset_fifo(chip);
 626
 627         /* program type */
 628         snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
 629
 630         /* set clock and counters */
 631         snd_es1938_rate_set(chip, substream, ADC1);
 632
 633         count = 0x10000 - count;
 634         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
 635         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
 636
 637         /* initialize and configure ADC */
 638         snd_es1938_write(chip, ESS_CMD_SETFORMAT2, u ? 0x51 : 0x71);
 639         snd_es1938_write(chip, ESS_CMD_SETFORMAT2, 0x90 |
 640                        (u ? 0x00 : 0x20) |
 641                        (is8 ? 0x00 : 0x04) |
 642                        (mono ? 0x40 : 0x08));
 643
 644         //      snd_es1938_reset_fifo(chip);
 645
 646         /* 11. configure system interrupt controller and DMA controller */
 647         snd_es1938_capture_setdma(chip);
 648
 649         return 0;
 650 }
 651
 652
 653 /* ------------------------------------------------------------------------------
 654  * Second Audio channel DAC Operation
 655  * ------------------------------------------------------------------------------*/
 656 static int snd_es1938_playback1_prepare(struct snd_pcm_substream *substream)
 657 {
 658         struct es1938 *chip = snd_pcm_substream_chip(substream);
 659         struct snd_pcm_runtime *runtime = substream->runtime;
 660         int u, is8, mono;
 661         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 662         unsigned int count = snd_pcm_lib_period_bytes(substream);
 663
 664         chip->dma2_size = size;
 665         chip->dma2_start = runtime->dma_addr;
 666
 667         mono = (runtime->channels > 1) ? 0 : 1;
 668         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
 669         u = snd_pcm_format_unsigned(runtime->format);
 670
 671         chip->dma2_shift = 2 - mono - is8;
 672
 673         snd_es1938_reset_fifo(chip);
 674
 675         /* set clock and counters */
 676         snd_es1938_rate_set(chip, substream, DAC2);
 677
 678         count >>= 1;
 679         count = 0x10000 - count;
 680         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTL, count & 0xff);
 681         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2TCOUNTH, count >> 8);
 682
 683         /* initialize and configure Audio 2 DAC */
 684         snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x40 | (u ? 0 : 4) |
 685                                (mono ? 0 : 2) | (is8 ? 0 : 1));
 686
 687         /* program DMA */
 688         snd_es1938_playback1_setdma(chip);
 689
 690         return 0;
 691 }
 692
 693 static int snd_es1938_playback2_prepare(struct snd_pcm_substream *substream)
 694 {
 695         struct es1938 *chip = snd_pcm_substream_chip(substream);
 696         struct snd_pcm_runtime *runtime = substream->runtime;
 697         int u, is8, mono;
 698         unsigned int size = snd_pcm_lib_buffer_bytes(substream);
 699         unsigned int count = snd_pcm_lib_period_bytes(substream);
 700
 701         chip->dma1_size = size;
 702         chip->dma1_start = runtime->dma_addr;
 703
 704         mono = (runtime->channels > 1) ? 0 : 1;
 705         is8 = snd_pcm_format_width(runtime->format) == 16 ? 0 : 1;
 706         u = snd_pcm_format_unsigned(runtime->format);
 707
 708         chip->dma1_shift = 2 - mono - is8;
 709
 710         count = 0x10000 - count;
 711
 712         /* reset */
 713         snd_es1938_reset_fifo(chip);
 714
 715         snd_es1938_bits(chip, ESS_CMD_ANALOGCONTROL, 0x03, (mono ? 2 : 1));
 716
 717         /* set clock and counters */
 718         snd_es1938_rate_set(chip, substream, DAC1);
 719         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADL, count & 0xff);
 720         snd_es1938_write(chip, ESS_CMD_DMACNTRELOADH, count >> 8);
 721
 722         /* initialized and configure DAC */
 723         snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x80 : 0x00);
 724         snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x51 : 0x71);
 725         snd_es1938_write(chip, ESS_CMD_SETFORMAT2,
 726                          0x90 | (mono ? 0x40 : 0x08) |
 727                          (is8 ? 0x00 : 0x04) | (u ? 0x00 : 0x20));
 728
 729         /* program DMA */
 730         snd_es1938_playback2_setdma(chip);
 731
 732         return 0;
 733 }
 734
 735 static int snd_es1938_playback_prepare(struct snd_pcm_substream *substream)
 736 {
 737         switch (substream->number) {
 738         case 0:
 739                 return snd_es1938_playback1_prepare(substream);
 740         case 1:
 741                 return snd_es1938_playback2_prepare(substream);
 742         }
 743         snd_BUG();
 744         return -EINVAL;
 745 }
 746
 747 /* during the incrementing of dma counters the DMA register reads sometimes
 748    returns garbage. To ensure a valid hw pointer, the following checks which
 749    should be very unlikely to fail are used:
 750    - is the current DMA address in the valid DMA range ?
 751    - is the sum of DMA address and DMA counter pointing to the last DMA byte ?
 752    One can argue this could differ by one byte depending on which register is
 753    updated first, so the implementation below allows for that.
 754 */
 755 static snd_pcm_uframes_t snd_es1938_capture_pointer(struct snd_pcm_substream *substream)
 756 {
 757         struct es1938 *chip = snd_pcm_substream_chip(substream);
 758         size_t ptr;
 759 #if 0
 760         size_t old, new;
 761         /* This stuff is *needed*, don't ask why - AB */
 762         old = inw(SLDM_REG(chip, DMACOUNT));
 763         while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
 764                 old = new;
 765         ptr = chip->dma1_size - 1 - new;
 766 #else
 767         size_t count;
 768         unsigned int diff;
 769
 770         ptr = inl(SLDM_REG(chip, DMAADDR));
 771         count = inw(SLDM_REG(chip, DMACOUNT));
 772         diff = chip->dma1_start + chip->dma1_size - ptr - count;
 773
 774         if (diff > 3 || ptr < chip->dma1_start
 775               || ptr >= chip->dma1_start+chip->dma1_size)
 776           ptr = chip->last_capture_dmaaddr;            /* bad, use last saved */
 777         else
 778           chip->last_capture_dmaaddr = ptr;            /* good, remember it */
 779
 780         ptr -= chip->dma1_start;
 781 #endif
 782         return ptr >> chip->dma1_shift;
 783 }
 784
 785 static snd_pcm_uframes_t snd_es1938_playback1_pointer(struct snd_pcm_substream *substream)
 786 {
 787         struct es1938 *chip = snd_pcm_substream_chip(substream);
 788         size_t ptr;
 789 #if 1
 790         ptr = chip->dma2_size - inw(SLIO_REG(chip, AUDIO2DMACOUNT));
 791 #else
 792         ptr = inl(SLIO_REG(chip, AUDIO2DMAADDR)) - chip->dma2_start;
 793 #endif
 794         return ptr >> chip->dma2_shift;
 795 }
 796
 797 static snd_pcm_uframes_t snd_es1938_playback2_pointer(struct snd_pcm_substream *substream)
 798 {
 799         struct es1938 *chip = snd_pcm_substream_chip(substream);
 800         size_t ptr;
 801         size_t old, new;
 802 #if 1
 803         /* This stuff is *needed*, don't ask why - AB */
 804         old = inw(SLDM_REG(chip, DMACOUNT));
 805         while ((new = inw(SLDM_REG(chip, DMACOUNT))) != old)
 806                 old = new;
 807         ptr = chip->dma1_size - 1 - new;
 808 #else
 809         ptr = inl(SLDM_REG(chip, DMAADDR)) - chip->dma1_start;
 810 #endif
 811         return ptr >> chip->dma1_shift;
 812 }
 813
 814 static snd_pcm_uframes_t snd_es1938_playback_pointer(struct snd_pcm_substream *substream)
 815 {
 816         switch (substream->number) {
 817         case 0:
 818                 return snd_es1938_playback1_pointer(substream);
 819         case 1:
 820                 return snd_es1938_playback2_pointer(substream);
 821         }
 822         snd_BUG();
 823         return -EINVAL;
 824 }
 825
 826 static int snd_es1938_capture_copy(struct snd_pcm_substream *substream,
 827                                    int channel, unsigned long pos,
 828                                    void __user *dst, unsigned long count)
 829 {
 830         struct snd_pcm_runtime *runtime = substream->runtime;
 831         struct es1938 *chip = snd_pcm_substream_chip(substream);
 832
 833         if (snd_BUG_ON(pos + count > chip->dma1_size))
 834                 return -EINVAL;
 835         if (pos + count < chip->dma1_size) {
 836                 if (copy_to_user(dst, runtime->dma_area + pos + 1, count))
 837                         return -EFAULT;
 838         } else {
 839                 if (copy_to_user(dst, runtime->dma_area + pos + 1, count - 1))
 840                         return -EFAULT;
 841                 if (put_user(runtime->dma_area[0],
 842                              ((unsigned char __user *)dst) + count - 1))
 843                         return -EFAULT;
 844         }
 845         return 0;
 846 }
 847
 848 static int snd_es1938_capture_copy_kernel(struct snd_pcm_substream *substream,
 849                                           int channel, unsigned long pos,
 850                                           void *dst, unsigned long count)
 851 {
 852         struct snd_pcm_runtime *runtime = substream->runtime;
 853         struct es1938 *chip = snd_pcm_substream_chip(substream);
 854
 855         if (snd_BUG_ON(pos + count > chip->dma1_size))
 856                 return -EINVAL;
 857         if (pos + count < chip->dma1_size) {
 858                 memcpy(dst, runtime->dma_area + pos + 1, count);
 859         } else {
 860                 memcpy(dst, runtime->dma_area + pos + 1, count - 1);
 861                 runtime->dma_area[0] = *((unsigned char *)dst + count - 1);
 862         }
 863         return 0;
 864 }
 865
 866 /*
 867  * buffer management
 868  */
 869 static int snd_es1938_pcm_hw_params(struct snd_pcm_substream *substream,
 870                                     struct snd_pcm_hw_params *hw_params)
 871
 872 {
 873         int err;
 874
 875         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 876                 return err;
 877         return 0;
 878 }
 879
 880 static int snd_es1938_pcm_hw_free(struct snd_pcm_substream *substream)
 881 {
 882         return snd_pcm_lib_free_pages(substream);
 883 }
 884
 885 /* ----------------------------------------------------------------------
 886  * Audio1 Capture (ADC)
 887  * ----------------------------------------------------------------------*/
 888 static const struct snd_pcm_hardware snd_es1938_capture =
 889 {
 890         .info =                 (SNDRV_PCM_INFO_INTERLEAVED |
 891                                 SNDRV_PCM_INFO_BLOCK_TRANSFER),
 892         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
 893                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
 894         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 895         .rate_min =             6000,
 896         .rate_max =             48000,
 897         .channels_min =         1,
 898         .channels_max =         2,
 899         .buffer_bytes_max =     0x8000,       /* DMA controller screws on higher values */
 900         .period_bytes_min =     64,
 901         .period_bytes_max =     0x8000,
 902         .periods_min =          1,
 903         .periods_max =          1024,
 904         .fifo_size =            256,
 905 };
 906
 907 /* -----------------------------------------------------------------------
 908  * Audio2 Playback (DAC)
 909  * -----------------------------------------------------------------------*/
 910 static const struct snd_pcm_hardware snd_es1938_playback =
 911 {
 912         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 913                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
 914                                  SNDRV_PCM_INFO_MMAP_VALID),
 915         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
 916                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
 917         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 918         .rate_min =             6000,
 919         .rate_max =             48000,
 920         .channels_min =         1,
 921         .channels_max =         2,
 922         .buffer_bytes_max =     0x8000,       /* DMA controller screws on higher values */
 923         .period_bytes_min =     64,
 924         .period_bytes_max =     0x8000,
 925         .periods_min =          1,
 926         .periods_max =          1024,
 927         .fifo_size =            256,
 928 };
 929
 930 static int snd_es1938_capture_open(struct snd_pcm_substream *substream)
 931 {
 932         struct es1938 *chip = snd_pcm_substream_chip(substream);
 933         struct snd_pcm_runtime *runtime = substream->runtime;
 934
 935         if (chip->playback2_substream)
 936                 return -EAGAIN;
 937         chip->capture_substream = substream;
 938         runtime->hw = snd_es1938_capture;
 939         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 940                                       &hw_constraints_clocks);
 941         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
 942         return 0;
 943 }
 944
 945 static int snd_es1938_playback_open(struct snd_pcm_substream *substream)
 946 {
 947         struct es1938 *chip = snd_pcm_substream_chip(substream);
 948         struct snd_pcm_runtime *runtime = substream->runtime;
 949
 950         switch (substream->number) {
 951         case 0:
 952                 chip->playback1_substream = substream;
 953                 break;
 954         case 1:
 955                 if (chip->capture_substream)
 956                         return -EAGAIN;
 957                 chip->playback2_substream = substream;
 958                 break;
 959         default:
 960                 snd_BUG();
 961                 return -EINVAL;
 962         }
 963         runtime->hw = snd_es1938_playback;
 964         snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
 965                                       &hw_constraints_clocks);
 966         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 0, 0xff00);
 967         return 0;
 968 }
 969
 970 static int snd_es1938_capture_close(struct snd_pcm_substream *substream)
 971 {
 972         struct es1938 *chip = snd_pcm_substream_chip(substream);
 973
 974         chip->capture_substream = NULL;
 975         return 0;
 976 }
 977
 978 static int snd_es1938_playback_close(struct snd_pcm_substream *substream)
 979 {
 980         struct es1938 *chip = snd_pcm_substream_chip(substream);
 981
 982         switch (substream->number) {
 983         case 0:
 984                 chip->playback1_substream = NULL;
 985                 break;
 986         case 1:
 987                 chip->playback2_substream = NULL;
 988                 break;
 989         default:
 990                 snd_BUG();
 991                 return -EINVAL;
 992         }
 993         return 0;
 994 }
 995
 996 static const struct snd_pcm_ops snd_es1938_playback_ops = {
 997         .open =         snd_es1938_playback_open,
 998         .close =        snd_es1938_playback_close,
 999         .ioctl =        snd_pcm_lib_ioctl,
1000         .hw_params =    snd_es1938_pcm_hw_params,
1001         .hw_free =      snd_es1938_pcm_hw_free,
1002         .prepare =      snd_es1938_playback_prepare,
1003         .trigger =      snd_es1938_playback_trigger,
1004         .pointer =      snd_es1938_playback_pointer,
1005 };
1006
1007 static const struct snd_pcm_ops snd_es1938_capture_ops = {
1008         .open =         snd_es1938_capture_open,
1009         .close =        snd_es1938_capture_close,
1010         .ioctl =        snd_pcm_lib_ioctl,
1011         .hw_params =    snd_es1938_pcm_hw_params,
1012         .hw_free =      snd_es1938_pcm_hw_free,
1013         .prepare =      snd_es1938_capture_prepare,
1014         .trigger =      snd_es1938_capture_trigger,
1015         .pointer =      snd_es1938_capture_pointer,
1016         .copy_user =    snd_es1938_capture_copy,
1017         .copy_kernel =  snd_es1938_capture_copy_kernel,
1018 };
1019
1020 static int snd_es1938_new_pcm(struct es1938 *chip, int device)
1021 {
1022         struct snd_pcm *pcm;
1023         int err;
1024
1025         if ((err = snd_pcm_new(chip->card, "es-1938-1946", device, 2, 1, &pcm)) < 0)
1026                 return err;
1027         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_es1938_playback_ops);
1028         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_es1938_capture_ops);
1029
1030         pcm->private_data = chip;
1031         pcm->info_flags = 0;
1032         strcpy(pcm->name, "ESS Solo-1");
1033
1034         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1035                                               &chip->pci->dev,
1036                                               64*1024, 64*1024);
1037
1038         chip->pcm = pcm;
1039         return 0;
1040 }
1041
1042 /* -------------------------------------------------------------------
1043  *
1044  *                       *** Mixer part ***
1045  */
1046
1047 static int snd_es1938_info_mux(struct snd_kcontrol *kcontrol,
1048                                struct snd_ctl_elem_info *uinfo)
1049 {
1050         static const char * const texts[8] = {
1051                 "Mic", "Mic Master", "CD", "AOUT",
1052                 "Mic1", "Mix", "Line", "Master"
1053         };
1054
1055         return snd_ctl_enum_info(uinfo, 1, 8, texts);
1056 }
1057
1058 static int snd_es1938_get_mux(struct snd_kcontrol *kcontrol,
1059                               struct snd_ctl_elem_value *ucontrol)
1060 {
1061         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1062         ucontrol->value.enumerated.item[0] = snd_es1938_mixer_read(chip, 0x1c) & 0x07;
1063         return 0;
1064 }
1065
1066 static int snd_es1938_put_mux(struct snd_kcontrol *kcontrol,
1067                               struct snd_ctl_elem_value *ucontrol)
1068 {
1069         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1070         unsigned char val = ucontrol->value.enumerated.item[0];
1071
1072         if (val > 7)
1073                 return -EINVAL;
1074         return snd_es1938_mixer_bits(chip, 0x1c, 0x07, val) != val;
1075 }
1076
1077 #define snd_es1938_info_spatializer_enable      snd_ctl_boolean_mono_info
1078
1079 static int snd_es1938_get_spatializer_enable(struct snd_kcontrol *kcontrol,
1080                                              struct snd_ctl_elem_value *ucontrol)
1081 {
1082         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1083         unsigned char val = snd_es1938_mixer_read(chip, 0x50);
1084         ucontrol->value.integer.value[0] = !!(val & 8);
1085         return 0;
1086 }
1087
1088 static int snd_es1938_put_spatializer_enable(struct snd_kcontrol *kcontrol,
1089                                              struct snd_ctl_elem_value *ucontrol)
1090 {
1091         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1092         unsigned char oval, nval;
1093         int change;
1094         nval = ucontrol->value.integer.value[0] ? 0x0c : 0x04;
1095         oval = snd_es1938_mixer_read(chip, 0x50) & 0x0c;
1096         change = nval != oval;
1097         if (change) {
1098                 snd_es1938_mixer_write(chip, 0x50, nval & ~0x04);
1099                 snd_es1938_mixer_write(chip, 0x50, nval);
1100         }
1101         return change;
1102 }
1103
1104 static int snd_es1938_info_hw_volume(struct snd_kcontrol *kcontrol,
1105                                      struct snd_ctl_elem_info *uinfo)
1106 {
1107         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
1108         uinfo->count = 2;
1109         uinfo->value.integer.min = 0;
1110         uinfo->value.integer.max = 63;
1111         return 0;
1112 }
1113
1114 static int snd_es1938_get_hw_volume(struct snd_kcontrol *kcontrol,
1115                                     struct snd_ctl_elem_value *ucontrol)
1116 {
1117         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1118         ucontrol->value.integer.value[0] = snd_es1938_mixer_read(chip, 0x61) & 0x3f;
1119         ucontrol->value.integer.value[1] = snd_es1938_mixer_read(chip, 0x63) & 0x3f;
1120         return 0;
1121 }
1122
1123 #define snd_es1938_info_hw_switch               snd_ctl_boolean_stereo_info
1124
1125 static int snd_es1938_get_hw_switch(struct snd_kcontrol *kcontrol,
1126                                     struct snd_ctl_elem_value *ucontrol)
1127 {
1128         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1129         ucontrol->value.integer.value[0] = !(snd_es1938_mixer_read(chip, 0x61) & 0x40);
1130         ucontrol->value.integer.value[1] = !(snd_es1938_mixer_read(chip, 0x63) & 0x40);
1131         return 0;
1132 }
1133
1134 static void snd_es1938_hwv_free(struct snd_kcontrol *kcontrol)
1135 {
1136         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1137         chip->master_volume = NULL;
1138         chip->master_switch = NULL;
1139         chip->hw_volume = NULL;
1140         chip->hw_switch = NULL;
1141 }
1142
1143 static int snd_es1938_reg_bits(struct es1938 *chip, unsigned char reg,
1144                                unsigned char mask, unsigned char val)
1145 {
1146         if (reg < 0xa0)
1147                 return snd_es1938_mixer_bits(chip, reg, mask, val);
1148         else
1149                 return snd_es1938_bits(chip, reg, mask, val);
1150 }
1151
1152 static int snd_es1938_reg_read(struct es1938 *chip, unsigned char reg)
1153 {
1154         if (reg < 0xa0)
1155                 return snd_es1938_mixer_read(chip, reg);
1156         else
1157                 return snd_es1938_read(chip, reg);
1158 }
1159
1160 #define ES1938_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv)    \
1161 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1162   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,\
1163   .name = xname, .index = xindex, \
1164   .info = snd_es1938_info_single, \
1165   .get = snd_es1938_get_single, .put = snd_es1938_put_single, \
1166   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
1167   .tlv = { .p = xtlv } }
1168 #define ES1938_SINGLE(xname, xindex, reg, shift, mask, invert) \
1169 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1170   .info = snd_es1938_info_single, \
1171   .get = snd_es1938_get_single, .put = snd_es1938_put_single, \
1172   .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) }
1173
1174 static int snd_es1938_info_single(struct snd_kcontrol *kcontrol,
1175                                   struct snd_ctl_elem_info *uinfo)
1176 {
1177         int mask = (kcontrol->private_value >> 16) & 0xff;
1178
1179         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1180         uinfo->count = 1;
1181         uinfo->value.integer.min = 0;
1182         uinfo->value.integer.max = mask;
1183         return 0;
1184 }
1185
1186 static int snd_es1938_get_single(struct snd_kcontrol *kcontrol,
1187                                  struct snd_ctl_elem_value *ucontrol)
1188 {
1189         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1190         int reg = kcontrol->private_value & 0xff;
1191         int shift = (kcontrol->private_value >> 8) & 0xff;
1192         int mask = (kcontrol->private_value >> 16) & 0xff;
1193         int invert = (kcontrol->private_value >> 24) & 0xff;
1194         int val;
1195
1196         val = snd_es1938_reg_read(chip, reg);
1197         ucontrol->value.integer.value[0] = (val >> shift) & mask;
1198         if (invert)
1199                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1200         return 0;
1201 }
1202
1203 static int snd_es1938_put_single(struct snd_kcontrol *kcontrol,
1204                                  struct snd_ctl_elem_value *ucontrol)
1205 {
1206         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1207         int reg = kcontrol->private_value & 0xff;
1208         int shift = (kcontrol->private_value >> 8) & 0xff;
1209         int mask = (kcontrol->private_value >> 16) & 0xff;
1210         int invert = (kcontrol->private_value >> 24) & 0xff;
1211         unsigned char val;
1212
1213         val = (ucontrol->value.integer.value[0] & mask);
1214         if (invert)
1215                 val = mask - val;
1216         mask <<= shift;
1217         val <<= shift;
1218         return snd_es1938_reg_bits(chip, reg, mask, val) != val;
1219 }
1220
1221 #define ES1938_DOUBLE_TLV(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert, xtlv) \
1222 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
1223   .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ,\
1224   .name = xname, .index = xindex, \
1225   .info = snd_es1938_info_double, \
1226   .get = snd_es1938_get_double, .put = snd_es1938_put_double, \
1227   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22), \
1228   .tlv = { .p = xtlv } }
1229 #define ES1938_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert) \
1230 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
1231   .info = snd_es1938_info_double, \
1232   .get = snd_es1938_get_double, .put = snd_es1938_put_double, \
1233   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
1234
1235 static int snd_es1938_info_double(struct snd_kcontrol *kcontrol,
1236                                   struct snd_ctl_elem_info *uinfo)
1237 {
1238         int mask = (kcontrol->private_value >> 24) & 0xff;
1239
1240         uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1241         uinfo->count = 2;
1242         uinfo->value.integer.min = 0;
1243         uinfo->value.integer.max = mask;
1244         return 0;
1245 }
1246
1247 static int snd_es1938_get_double(struct snd_kcontrol *kcontrol,
1248                                  struct snd_ctl_elem_value *ucontrol)
1249 {
1250         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1251         int left_reg = kcontrol->private_value & 0xff;
1252         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1253         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1254         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1255         int mask = (kcontrol->private_value >> 24) & 0xff;
1256         int invert = (kcontrol->private_value >> 22) & 1;
1257         unsigned char left, right;
1258
1259         left = snd_es1938_reg_read(chip, left_reg);
1260         if (left_reg != right_reg)
1261                 right = snd_es1938_reg_read(chip, right_reg);
1262         else
1263                 right = left;
1264         ucontrol->value.integer.value[0] = (left >> shift_left) & mask;
1265         ucontrol->value.integer.value[1] = (right >> shift_right) & mask;
1266         if (invert) {
1267                 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
1268                 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
1269         }
1270         return 0;
1271 }
1272
1273 static int snd_es1938_put_double(struct snd_kcontrol *kcontrol,
1274                                  struct snd_ctl_elem_value *ucontrol)
1275 {
1276         struct es1938 *chip = snd_kcontrol_chip(kcontrol);
1277         int left_reg = kcontrol->private_value & 0xff;
1278         int right_reg = (kcontrol->private_value >> 8) & 0xff;
1279         int shift_left = (kcontrol->private_value >> 16) & 0x07;
1280         int shift_right = (kcontrol->private_value >> 19) & 0x07;
1281         int mask = (kcontrol->private_value >> 24) & 0xff;
1282         int invert = (kcontrol->private_value >> 22) & 1;
1283         int change;
1284         unsigned char val1, val2, mask1, mask2;
1285
1286         val1 = ucontrol->value.integer.value[0] & mask;
1287         val2 = ucontrol->value.integer.value[1] & mask;
1288         if (invert) {
1289                 val1 = mask - val1;
1290                 val2 = mask - val2;
1291         }
1292         val1 <<= shift_left;
1293         val2 <<= shift_right;
1294         mask1 = mask << shift_left;
1295         mask2 = mask << shift_right;
1296         if (left_reg != right_reg) {
1297                 change = 0;
1298                 if (snd_es1938_reg_bits(chip, left_reg, mask1, val1) != val1)
1299                         change = 1;
1300                 if (snd_es1938_reg_bits(chip, right_reg, mask2, val2) != val2)
1301                         change = 1;
1302         } else {
1303                 change = (snd_es1938_reg_bits(chip, left_reg, mask1 | mask2,
1304                                               val1 | val2) != (val1 | val2));
1305         }
1306         return change;
1307 }
1308
1309 static const DECLARE_TLV_DB_RANGE(db_scale_master,
1310         0, 54, TLV_DB_SCALE_ITEM(-3600, 50, 1),
1311         54, 63, TLV_DB_SCALE_ITEM(-900, 100, 0),
1312 );
1313
1314 static const DECLARE_TLV_DB_RANGE(db_scale_audio1,
1315         0, 8, TLV_DB_SCALE_ITEM(-3300, 300, 1),
1316         8, 15, TLV_DB_SCALE_ITEM(-900, 150, 0),
1317 );
1318
1319 static const DECLARE_TLV_DB_RANGE(db_scale_audio2,
1320         0, 8, TLV_DB_SCALE_ITEM(-3450, 300, 1),
1321         8, 15, TLV_DB_SCALE_ITEM(-1050, 150, 0),
1322 );
1323
1324 static const DECLARE_TLV_DB_RANGE(db_scale_mic,
1325         0, 8, TLV_DB_SCALE_ITEM(-2400, 300, 1),
1326         8, 15, TLV_DB_SCALE_ITEM(0, 150, 0),
1327 );
1328
1329 static const DECLARE_TLV_DB_RANGE(db_scale_line,
1330         0, 8, TLV_DB_SCALE_ITEM(-3150, 300, 1),
1331         8, 15, TLV_DB_SCALE_ITEM(-750, 150, 0),
1332 );
1333
1334 static const DECLARE_TLV_DB_SCALE(db_scale_capture, 0, 150, 0);
1335
1336 static struct snd_kcontrol_new snd_es1938_controls[] = {
1337 ES1938_DOUBLE_TLV("Master Playback Volume", 0, 0x60, 0x62, 0, 0, 63, 0,
1338                   db_scale_master),
1339 ES1938_DOUBLE("Master Playback Switch", 0, 0x60, 0x62, 6, 6, 1, 1),
1340 {
1341         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1342         .name = "Hardware Master Playback Volume",
1343         .access = SNDRV_CTL_ELEM_ACCESS_READ,
1344         .info = snd_es1938_info_hw_volume,
1345         .get = snd_es1938_get_hw_volume,
1346 },
1347 {
1348         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1349         .access = (SNDRV_CTL_ELEM_ACCESS_READ |
1350                    SNDRV_CTL_ELEM_ACCESS_TLV_READ),
1351         .name = "Hardware Master Playback Switch",
1352         .info = snd_es1938_info_hw_switch,
1353         .get = snd_es1938_get_hw_switch,
1354         .tlv = { .p = db_scale_master },
1355 },
1356 ES1938_SINGLE("Hardware Volume Split", 0, 0x64, 7, 1, 0),
1357 ES1938_DOUBLE_TLV("Line Playback Volume", 0, 0x3e, 0x3e, 4, 0, 15, 0,
1358                   db_scale_line),
1359 ES1938_DOUBLE("CD Playback Volume", 0, 0x38, 0x38, 4, 0, 15, 0),
1360 ES1938_DOUBLE_TLV("FM Playback Volume", 0, 0x36, 0x36, 4, 0, 15, 0,
1361                   db_scale_mic),
1362 ES1938_DOUBLE_TLV("Mono Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0,
1363                   db_scale_line),
1364 ES1938_DOUBLE_TLV("Mic Playback Volume", 0, 0x1a, 0x1a, 4, 0, 15, 0,
1365                   db_scale_mic),
1366 ES1938_DOUBLE_TLV("Aux Playback Volume", 0, 0x3a, 0x3a, 4, 0, 15, 0,
1367                   db_scale_line),
1368 ES1938_DOUBLE_TLV("Capture Volume", 0, 0xb4, 0xb4, 4, 0, 15, 0,
1369                   db_scale_capture),
1370 ES1938_SINGLE("Beep Volume", 0, 0x3c, 0, 7, 0),
1371 ES1938_SINGLE("Record Monitor", 0, 0xa8, 3, 1, 0),
1372 ES1938_SINGLE("Capture Switch", 0, 0x1c, 4, 1, 1),
1373 {
1374         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1375         .name = "Capture Source",
1376         .info = snd_es1938_info_mux,
1377         .get = snd_es1938_get_mux,
1378         .put = snd_es1938_put_mux,
1379 },
1380 ES1938_DOUBLE_TLV("Mono Input Playback Volume", 0, 0x6d, 0x6d, 4, 0, 15, 0,
1381                   db_scale_line),
1382 ES1938_DOUBLE_TLV("PCM Capture Volume", 0, 0x69, 0x69, 4, 0, 15, 0,
1383                   db_scale_audio2),
1384 ES1938_DOUBLE_TLV("Mic Capture Volume", 0, 0x68, 0x68, 4, 0, 15, 0,
1385                   db_scale_mic),
1386 ES1938_DOUBLE_TLV("Line Capture Volume", 0, 0x6e, 0x6e, 4, 0, 15, 0,
1387                   db_scale_line),
1388 ES1938_DOUBLE_TLV("FM Capture Volume", 0, 0x6b, 0x6b, 4, 0, 15, 0,
1389                   db_scale_mic),
1390 ES1938_DOUBLE_TLV("Mono Capture Volume", 0, 0x6f, 0x6f, 4, 0, 15, 0,
1391                   db_scale_line),
1392 ES1938_DOUBLE_TLV("CD Capture Volume", 0, 0x6a, 0x6a, 4, 0, 15, 0,
1393                   db_scale_line),
1394 ES1938_DOUBLE_TLV("Aux Capture Volume", 0, 0x6c, 0x6c, 4, 0, 15, 0,
1395                   db_scale_line),
1396 ES1938_DOUBLE_TLV("PCM Playback Volume", 0, 0x7c, 0x7c, 4, 0, 15, 0,
1397                   db_scale_audio2),
1398 ES1938_DOUBLE_TLV("PCM Playback Volume", 1, 0x14, 0x14, 4, 0, 15, 0,
1399                   db_scale_audio1),
1400 ES1938_SINGLE("3D Control - Level", 0, 0x52, 0, 63, 0),
1401 {
1402         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1403         .name = "3D Control - Switch",
1404         .info = snd_es1938_info_spatializer_enable,
1405         .get = snd_es1938_get_spatializer_enable,
1406         .put = snd_es1938_put_spatializer_enable,
1407 },
1408 ES1938_SINGLE("Mic Boost (+26dB)", 0, 0x7d, 3, 1, 0)
1409 };
1410
1411
1412 /* ---------------------------------------------------------------------------- */
1413 /* ---------------------------------------------------------------------------- */
1414
1415 /*
1416  * initialize the chip - used by resume callback, too
1417  */
1418 static void snd_es1938_chip_init(struct es1938 *chip)
1419 {
1420         /* reset chip */
1421         snd_es1938_reset(chip);
1422
1423         /* configure native mode */
1424
1425         /* enable bus master */
1426         pci_set_master(chip->pci);
1427
1428         /* disable legacy audio */
1429         pci_write_config_word(chip->pci, SL_PCI_LEGACYCONTROL, 0x805f);
1430
1431         /* set DDMA base */
1432         pci_write_config_word(chip->pci, SL_PCI_DDMACONTROL, chip->ddma_port | 1);
1433
1434         /* set DMA/IRQ policy */
1435         pci_write_config_dword(chip->pci, SL_PCI_CONFIG, 0);
1436
1437         /* enable Audio 1, Audio 2, MPU401 IRQ and HW volume IRQ*/
1438         outb(0xf0, SLIO_REG(chip, IRQCONTROL));
1439
1440         /* reset DMA */
1441         outb(0, SLDM_REG(chip, DMACLEAR));
1442 }
1443
1444 #ifdef CONFIG_PM_SLEEP
1445 /*
1446  * PM support
1447  */
1448
1449 static unsigned char saved_regs[SAVED_REG_SIZE+1] = {
1450         0x14, 0x1a, 0x1c, 0x3a, 0x3c, 0x3e, 0x36, 0x38,
1451         0x50, 0x52, 0x60, 0x61, 0x62, 0x63, 0x64, 0x68,
1452         0x69, 0x6a, 0x6b, 0x6d, 0x6e, 0x6f, 0x7c, 0x7d,
1453         0xa8, 0xb4,
1454 };
1455
1456
1457 static int es1938_suspend(struct device *dev)
1458 {
1459         struct snd_card *card = dev_get_drvdata(dev);
1460         struct es1938 *chip = card->private_data;
1461         unsigned char *s, *d;
1462
1463         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1464
1465         /* save mixer-related registers */
1466         for (s = saved_regs, d = chip->saved_regs; *s; s++, d++)
1467                 *d = snd_es1938_reg_read(chip, *s);
1468
1469         outb(0x00, SLIO_REG(chip, IRQCONTROL)); /* disable irqs */
1470         if (chip->irq >= 0) {
1471                 free_irq(chip->irq, chip);
1472                 chip->irq = -1;
1473         }
1474         return 0;
1475 }
1476
1477 static int es1938_resume(struct device *dev)
1478 {
1479         struct pci_dev *pci = to_pci_dev(dev);
1480         struct snd_card *card = dev_get_drvdata(dev);
1481         struct es1938 *chip = card->private_data;
1482         unsigned char *s, *d;
1483
1484         if (request_irq(pci->irq, snd_es1938_interrupt,
1485                         IRQF_SHARED, KBUILD_MODNAME, chip)) {
1486                 dev_err(dev, "unable to grab IRQ %d, disabling device\n",
1487                         pci->irq);
1488                 snd_card_disconnect(card);
1489                 return -EIO;
1490         }
1491         chip->irq = pci->irq;
1492         snd_es1938_chip_init(chip);
1493
1494         /* restore mixer-related registers */
1495         for (s = saved_regs, d = chip->saved_regs; *s; s++, d++) {
1496                 if (*s < 0xa0)
1497                         snd_es1938_mixer_write(chip, *s, *d);
1498                 else
1499                         snd_es1938_write(chip, *s, *d);
1500         }
1501
1502         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1503         return 0;
1504 }
1505
1506 static SIMPLE_DEV_PM_OPS(es1938_pm, es1938_suspend, es1938_resume);
1507 #define ES1938_PM_OPS   &es1938_pm
1508 #else
1509 #define ES1938_PM_OPS   NULL
1510 #endif /* CONFIG_PM_SLEEP */
1511
1512 #ifdef SUPPORT_JOYSTICK
1513 static int snd_es1938_create_gameport(struct es1938 *chip)
1514 {
1515         struct gameport *gp;
1516
1517         chip->gameport = gp = gameport_allocate_port();
1518         if (!gp) {
1519                 dev_err(chip->card->dev,
1520                         "cannot allocate memory for gameport\n");
1521                 return -ENOMEM;
1522         }
1523
1524         gameport_set_name(gp, "ES1938");
1525         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
1526         gameport_set_dev_parent(gp, &chip->pci->dev);
1527         gp->io = chip->game_port;
1528
1529         gameport_register_port(gp);
1530
1531         return 0;
1532 }
1533
1534 static void snd_es1938_free_gameport(struct es1938 *chip)
1535 {
1536         if (chip->gameport) {
1537                 gameport_unregister_port(chip->gameport);
1538                 chip->gameport = NULL;
1539         }
1540 }
1541 #else
1542 static inline int snd_es1938_create_gameport(struct es1938 *chip) { return -ENOSYS; }
1543 static inline void snd_es1938_free_gameport(struct es1938 *chip) { }
1544 #endif /* SUPPORT_JOYSTICK */
1545
1546 static int snd_es1938_free(struct es1938 *chip)
1547 {
1548         /* disable irqs */
1549         outb(0x00, SLIO_REG(chip, IRQCONTROL));
1550         if (chip->rmidi)
1551                 snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0);
1552
1553         snd_es1938_free_gameport(chip);
1554
1555         if (chip->irq >= 0)
1556                 free_irq(chip->irq, chip);
1557         pci_release_regions(chip->pci);
1558         pci_disable_device(chip->pci);
1559         kfree(chip);
1560         return 0;
1561 }
1562
1563 static int snd_es1938_dev_free(struct snd_device *device)
1564 {
1565         struct es1938 *chip = device->device_data;
1566         return snd_es1938_free(chip);
1567 }
1568
1569 static int snd_es1938_create(struct snd_card *card,
1570                              struct pci_dev *pci,
1571                              struct es1938 **rchip)
1572 {
1573         struct es1938 *chip;
1574         int err;
1575         static struct snd_device_ops ops = {
1576                 .dev_free =     snd_es1938_dev_free,
1577         };
1578
1579         *rchip = NULL;
1580
1581         /* enable PCI device */
1582         if ((err = pci_enable_device(pci)) < 0)
1583                 return err;
1584         /* check, if we can restrict PCI DMA transfers to 24 bits */
1585         if (dma_set_mask(&pci->dev, DMA_BIT_MASK(24)) < 0 ||
1586             dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(24)) < 0) {
1587                 dev_err(card->dev,
1588                         "architecture does not support 24bit PCI busmaster DMA\n");
1589                 pci_disable_device(pci);
1590                 return -ENXIO;
1591         }
1592
1593         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1594         if (chip == NULL) {
1595                 pci_disable_device(pci);
1596                 return -ENOMEM;
1597         }
1598         spin_lock_init(&chip->reg_lock);
1599         spin_lock_init(&chip->mixer_lock);
1600         chip->card = card;
1601         chip->pci = pci;
1602         chip->irq = -1;
1603         if ((err = pci_request_regions(pci, "ESS Solo-1")) < 0) {
1604                 kfree(chip);
1605                 pci_disable_device(pci);
1606                 return err;
1607         }
1608         chip->io_port = pci_resource_start(pci, 0);
1609         chip->sb_port = pci_resource_start(pci, 1);
1610         chip->vc_port = pci_resource_start(pci, 2);
1611         chip->mpu_port = pci_resource_start(pci, 3);
1612         chip->game_port = pci_resource_start(pci, 4);
1613         if (request_irq(pci->irq, snd_es1938_interrupt, IRQF_SHARED,
1614                         KBUILD_MODNAME, chip)) {
1615                 dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq);
1616                 snd_es1938_free(chip);
1617                 return -EBUSY;
1618         }
1619         chip->irq = pci->irq;
1620         dev_dbg(card->dev,
1621                 "create: io: 0x%lx, sb: 0x%lx, vc: 0x%lx, mpu: 0x%lx, game: 0x%lx\n",
1622                    chip->io_port, chip->sb_port, chip->vc_port, chip->mpu_port, chip->game_port);
1623
1624         chip->ddma_port = chip->vc_port + 0x00;         /* fix from Thomas Sailer */
1625
1626         snd_es1938_chip_init(chip);
1627
1628         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1629                 snd_es1938_free(chip);
1630                 return err;
1631         }
1632
1633         *rchip = chip;
1634         return 0;
1635 }
1636
1637 /* --------------------------------------------------------------------
1638  * Interrupt handler
1639  * -------------------------------------------------------------------- */
1640 static irqreturn_t snd_es1938_interrupt(int irq, void *dev_id)
1641 {
1642         struct es1938 *chip = dev_id;
1643         unsigned char status, audiostatus;
1644         int handled = 0;
1645
1646         status = inb(SLIO_REG(chip, IRQCONTROL));
1647 #if 0
1648         dev_dbg(chip->card->dev,
1649                 "Es1938debug - interrupt status: =0x%x\n", status);
1650 #endif
1651
1652         /* AUDIO 1 */
1653         if (status & 0x10) {
1654 #if 0
1655                 dev_dbg(chip->card->dev,
1656                        "Es1938debug - AUDIO channel 1 interrupt\n");
1657                 dev_dbg(chip->card->dev,
1658                        "Es1938debug - AUDIO channel 1 DMAC DMA count: %u\n",
1659                        inw(SLDM_REG(chip, DMACOUNT)));
1660                 dev_dbg(chip->card->dev,
1661                        "Es1938debug - AUDIO channel 1 DMAC DMA base: %u\n",
1662                        inl(SLDM_REG(chip, DMAADDR)));
1663                 dev_dbg(chip->card->dev,
1664                        "Es1938debug - AUDIO channel 1 DMAC DMA status: 0x%x\n",
1665                        inl(SLDM_REG(chip, DMASTATUS)));
1666 #endif
1667                 /* clear irq */
1668                 handled = 1;
1669                 audiostatus = inb(SLSB_REG(chip, STATUS));
1670                 if (chip->active & ADC1)
1671                         snd_pcm_period_elapsed(chip->capture_substream);
1672                 else if (chip->active & DAC1)
1673                         snd_pcm_period_elapsed(chip->playback2_substream);
1674         }
1675
1676         /* AUDIO 2 */
1677         if (status & 0x20) {
1678 #if 0
1679                 dev_dbg(chip->card->dev,
1680                        "Es1938debug - AUDIO channel 2 interrupt\n");
1681                 dev_dbg(chip->card->dev,
1682                        "Es1938debug - AUDIO channel 2 DMAC DMA count: %u\n",
1683                        inw(SLIO_REG(chip, AUDIO2DMACOUNT)));
1684                 dev_dbg(chip->card->dev,
1685                        "Es1938debug - AUDIO channel 2 DMAC DMA base: %u\n",
1686                        inl(SLIO_REG(chip, AUDIO2DMAADDR)));
1687
1688 #endif
1689                 /* clear irq */
1690                 handled = 1;
1691                 snd_es1938_mixer_bits(chip, ESSSB_IREG_AUDIO2CONTROL2, 0x80, 0);
1692                 if (chip->active & DAC2)
1693                         snd_pcm_period_elapsed(chip->playback1_substream);
1694         }
1695
1696         /* Hardware volume */
1697         if (status & 0x40) {
1698                 int split = snd_es1938_mixer_read(chip, 0x64) & 0x80;
1699                 handled = 1;
1700                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_switch->id);
1701                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &chip->hw_volume->id);
1702                 if (!split) {
1703                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1704                                        &chip->master_switch->id);
1705                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1706                                        &chip->master_volume->id);
1707                 }
1708                 /* ack interrupt */
1709                 snd_es1938_mixer_write(chip, 0x66, 0x00);
1710         }
1711
1712         /* MPU401 */
1713         if (status & 0x80) {
1714                 // the following line is evil! It switches off MIDI interrupt handling after the first interrupt received.
1715                 // replacing the last 0 by 0x40 works for ESS-Solo1, but just doing nothing works as well!
1716                 // andreas@flying-snail.de
1717                 // snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0); /* ack? */
1718                 if (chip->rmidi) {
1719                         handled = 1;
1720                         snd_mpu401_uart_interrupt(irq, chip->rmidi->private_data);
1721                 }
1722         }
1723         return IRQ_RETVAL(handled);
1724 }
1725
1726 #define ES1938_DMA_SIZE 64
1727
1728 static int snd_es1938_mixer(struct es1938 *chip)
1729 {
1730         struct snd_card *card;
1731         unsigned int idx;
1732         int err;
1733
1734         card = chip->card;
1735
1736         strcpy(card->mixername, "ESS Solo-1");
1737
1738         for (idx = 0; idx < ARRAY_SIZE(snd_es1938_controls); idx++) {
1739                 struct snd_kcontrol *kctl;
1740                 kctl = snd_ctl_new1(&snd_es1938_controls[idx], chip);
1741                 switch (idx) {
1742                         case 0:
1743                                 chip->master_volume = kctl;
1744                                 kctl->private_free = snd_es1938_hwv_free;
1745                                 break;
1746                         case 1:
1747                                 chip->master_switch = kctl;
1748                                 kctl->private_free = snd_es1938_hwv_free;
1749                                 break;
1750                         case 2:
1751                                 chip->hw_volume = kctl;
1752                                 kctl->private_free = snd_es1938_hwv_free;
1753                                 break;
1754                         case 3:
1755                                 chip->hw_switch = kctl;
1756                                 kctl->private_free = snd_es1938_hwv_free;
1757                                 break;
1758                         }
1759                 if ((err = snd_ctl_add(card, kctl)) < 0)
1760                         return err;
1761         }
1762         return 0;
1763 }
1764
1765
1766 static int snd_es1938_probe(struct pci_dev *pci,
1767                             const struct pci_device_id *pci_id)
1768 {
1769         static int dev;
1770         struct snd_card *card;
1771         struct es1938 *chip;
1772         struct snd_opl3 *opl3;
1773         int idx, err;
1774
1775         if (dev >= SNDRV_CARDS)
1776                 return -ENODEV;
1777         if (!enable[dev]) {
1778                 dev++;
1779                 return -ENOENT;
1780         }
1781
1782         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1783                            0, &card);
1784         if (err < 0)
1785                 return err;
1786         for (idx = 0; idx < 5; idx++) {
1787                 if (pci_resource_start(pci, idx) == 0 ||
1788                     !(pci_resource_flags(pci, idx) & IORESOURCE_IO)) {
1789                         snd_card_free(card);
1790                         return -ENODEV;
1791                 }
1792         }
1793         if ((err = snd_es1938_create(card, pci, &chip)) < 0) {
1794                 snd_card_free(card);
1795                 return err;
1796         }
1797         card->private_data = chip;
1798
1799         strcpy(card->driver, "ES1938");
1800         strcpy(card->shortname, "ESS ES1938 (Solo-1)");
1801         sprintf(card->longname, "%s rev %i, irq %i",
1802                 card->shortname,
1803                 chip->revision,
1804                 chip->irq);
1805
1806         if ((err = snd_es1938_new_pcm(chip, 0)) < 0) {
1807                 snd_card_free(card);
1808                 return err;
1809         }
1810         if ((err = snd_es1938_mixer(chip)) < 0) {
1811                 snd_card_free(card);
1812                 return err;
1813         }
1814         if (snd_opl3_create(card,
1815                             SLSB_REG(chip, FMLOWADDR),
1816                             SLSB_REG(chip, FMHIGHADDR),
1817                             OPL3_HW_OPL3, 1, &opl3) < 0) {
1818                 dev_err(card->dev, "OPL3 not detected at 0x%lx\n",
1819                            SLSB_REG(chip, FMLOWADDR));
1820         } else {
1821                 if ((err = snd_opl3_timer_new(opl3, 0, 1)) < 0) {
1822                         snd_card_free(card);
1823                         return err;
1824                 }
1825                 if ((err = snd_opl3_hwdep_new(opl3, 0, 1, NULL)) < 0) {
1826                         snd_card_free(card);
1827                         return err;
1828                 }
1829         }
1830         if (snd_mpu401_uart_new(card, 0, MPU401_HW_MPU401,
1831                                 chip->mpu_port,
1832                                 MPU401_INFO_INTEGRATED | MPU401_INFO_IRQ_HOOK,
1833                                 -1, &chip->rmidi) < 0) {
1834                 dev_err(card->dev, "unable to initialize MPU-401\n");
1835         } else {
1836                 // this line is vital for MIDI interrupt handling on ess-solo1
1837                 // andreas@flying-snail.de
1838                 snd_es1938_mixer_bits(chip, ESSSB_IREG_MPU401CONTROL, 0x40, 0x40);
1839         }
1840
1841         snd_es1938_create_gameport(chip);
1842
1843         if ((err = snd_card_register(card)) < 0) {
1844                 snd_card_free(card);
1845                 return err;
1846         }
1847
1848         pci_set_drvdata(pci, card);
1849         dev++;
1850         return 0;
1851 }
1852
1853 static void snd_es1938_remove(struct pci_dev *pci)
1854 {
1855         snd_card_free(pci_get_drvdata(pci));
1856 }
1857
1858 static struct pci_driver es1938_driver = {
1859         .name = KBUILD_MODNAME,
1860         .id_table = snd_es1938_ids,
1861         .probe = snd_es1938_probe,
1862         .remove = snd_es1938_remove,
1863         .driver = {
1864                 .pm = ES1938_PM_OPS,
1865         },
1866 };
1867
1868 module_pci_driver(es1938_driver);