sound/oss/es1370.c

   1 /*****************************************************************************/
   2
   3 /*
   4  *      es1370.c  --  Ensoniq ES1370/Asahi Kasei AK4531 audio driver.
   5  *
   6  *      Copyright (C) 1998-2001, 2003  Thomas Sailer (t.sailer@alumni.ethz.ch)
   7  *
   8  *      This program is free software; you can redistribute it and/or modify
   9  *      it under the terms of the GNU General Public License as published by
  10  *      the Free Software Foundation; either version 2 of the License, or
  11  *      (at your option) any later version.
  12  *
  13  *      This program is distributed in the hope that it will be useful,
  14  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *      GNU General Public License for more details.
  17  *
  18  *      You should have received a copy of the GNU General Public License
  19  *      along with this program; if not, write to the Free Software
  20  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  * Special thanks to David C. Niemi
  23  *
  24  *
  25  * Module command line parameters:
  26  *   lineout  if 1 the LINE jack is used as an output instead of an input.
  27  *            LINE then contains the unmixed dsp output. This can be used
  28  *            to make the card a four channel one: use dsp to output two
  29  *            channels to LINE and dac to output the other two channels to
  30  *            SPKR. Set the mixer to only output synth to SPKR.
  31  *   micbias  sets the +5V bias to the mic if using an electretmic.
  32  *
  33  *
  34  *  Note: sync mode is not yet supported (i.e. running dsp and dac from the same
  35  *  clock source)
  36  *
  37  *  Supported devices:
  38  *  /dev/dsp    standard /dev/dsp device, (mostly) OSS compatible
  39  *  /dev/mixer  standard /dev/mixer device, (mostly) OSS compatible
  40  *  /dev/dsp1   additional DAC, like /dev/dsp, but output only,
  41  *              only 5512, 11025, 22050 and 44100 samples/s,
  42  *              outputs to mixer "SYNTH" setting
  43  *  /dev/midi   simple MIDI UART interface, no ioctl
  44  *
  45  *  NOTE: the card does not have any FM/Wavetable synthesizer, it is supposed
  46  *  to be done in software. That is what /dev/dac is for. By now (Q2 1998)
  47  *  there are several MIDI to PCM (WAV) packages, one of them is timidity.
  48  *
  49  *  Revision history
  50  *    26.03.1998   0.1   Initial release
  51  *    31.03.1998   0.2   Fix bug in GETOSPACE
  52  *    04.04.1998   0.3   Make it work (again) under 2.0.33
  53  *                       Fix mixer write operation not returning the actual
  54  *                       settings
  55  *    05.04.1998   0.4   First attempt at using the new PCI stuff
  56  *    29.04.1998   0.5   Fix hang when ^C is pressed on amp
  57  *    07.05.1998   0.6   Don't double lock around stop_*() in *_release()
  58  *    10.05.1998   0.7   First stab at a simple midi interface (no bells&whistles)
  59  *    14.05.1998   0.8   Don't allow excessive interrupt rates
  60  *    08.06.1998   0.9   First release using Alan Cox' soundcore instead of
  61  *                       miscdevice
  62  *    05.07.1998   0.10  Fixed the driver to correctly maintin OSS style volume
  63  *                       settings (not sure if this should be standard)
  64  *                       Fixed many references: f_flags should be f_mode
  65  *                       -- Gerald Britton <gbritton@mit.edu>
  66  *    03.08.1998   0.11  Now mixer behaviour can basically be selected between
  67  *                       "OSS documented" and "OSS actual" behaviour
  68  *                       Fixed mixer table thanks to Hakan.Lennestal@lu.erisoft.se
  69  *                       On module startup, set DAC2 to 11kSPS instead of 5.5kSPS,
  70  *                       as it produces an annoying ssssh in the lower sampling rate
  71  *                       Do not include modversions.h
  72  *    22.08.1998   0.12  Mixer registers actually have 5 instead of 4 bits
  73  *                       pointed out by Itai Nahshon
  74  *    31.08.1998   0.13  Fix realplayer problems - dac.count issues
  75  *    08.10.1998   0.14  Joystick support fixed
  76  *                       -- Oliver Neukum <c188@org.chemie.uni-muenchen.de>
  77  *    10.12.1998   0.15  Fix drain_dac trying to wait on not yet initialized DMA
  78  *    16.12.1998   0.16  Don't wake up app until there are fragsize bytes to read/write
  79  *    06.01.1999   0.17  remove the silly SA_INTERRUPT flag.
  80  *                       hopefully killed the egcs section type conflict
  81  *    12.03.1999   0.18  cinfo.blocks should be reset after GETxPTR ioctl.
  82  *                       reported by Johan Maes <joma@telindus.be>
  83  *    22.03.1999   0.19  return EAGAIN instead of EBUSY when O_NONBLOCK
  84  *                       read/write cannot be executed
  85  *    07.04.1999   0.20  implemented the following ioctl's: SOUND_PCM_READ_RATE,
  86  *                       SOUND_PCM_READ_CHANNELS, SOUND_PCM_READ_BITS;
  87  *                       Alpha fixes reported by Peter Jones <pjones@redhat.com>
  88  *                       Note: joystick address handling might still be wrong on archs
  89  *                       other than i386
  90  *    10.05.1999   0.21  Added support for an electret mic for SB PCI64
  91  *                       to the Linux kernel sound driver. This mod also straighten
  92  *                       out the question marks around the mic impedance setting
  93  *                       (micz). From Kim.Berts@fisub.mail.abb.com
  94  *    11.05.1999   0.22  Implemented the IMIX call to mute recording monitor.
  95  *                       Guenter Geiger <geiger@epy.co.at>
  96  *    15.06.1999   0.23  Fix bad allocation bug.
  97  *                       Thanks to Deti Fliegl <fliegl@in.tum.de>
  98  *    28.06.1999   0.24  Add pci_set_master
  99  *    02.08.1999   0.25  Added workaround for the "phantom write" bug first
 100  *                       documented by Dave Sharpless from Anchor Games
 101  *    03.08.1999   0.26  adapt to Linus' new __setup/__initcall
 102  *                       added kernel command line option "es1370=joystick[,lineout[,micbias]]"
 103  *                       removed CONFIG_SOUND_ES1370_JOYPORT_BOOT kludge
 104  *    12.08.1999   0.27  module_init/__setup fixes
 105  *    19.08.1999   0.28  SOUND_MIXER_IMIX fixes, reported by Gianluca <gialluca@mail.tiscalinet.it>
 106  *    31.08.1999   0.29  add spin_lock_init
 107  *                       replaced current->state = x with set_current_state(x)
 108  *    03.09.1999   0.30  change read semantics for MIDI to match
 109  *                       OSS more closely; remove possible wakeup race
 110  *    28.10.1999   0.31  More waitqueue races fixed
 111  *    08.01.2000   0.32  Prevent some ioctl's from returning bad count values on underrun/overrun;
 112  *                       Tim Janik's BSE (Bedevilled Sound Engine) found this
 113  *    07.02.2000   0.33  Use pci_alloc_consistent and pci_register_driver
 114  *    21.11.2000   0.34  Initialize dma buffers in poll, otherwise poll may return a bogus mask
 115  *    12.12.2000   0.35  More dma buffer initializations, patch from
 116  *                       Tjeerd Mulder <tjeerd.mulder@fujitsu-siemens.com>
 117  *    07.01.2001   0.36  Timeout change in wrcodec as requested by Frank Klemm <pfk@fuchs.offl.uni-jena.de>
 118  *    31.01.2001   0.37  Register/Unregister gameport
 119  *                       Fix SETTRIGGER non OSS API conformity
 120  *    03.01.2003   0.38  open_mode fixes from Georg Acher <acher@in.tum.de>
 121  *
 122  * some important things missing in Ensoniq documentation:
 123  *
 124  * Experimental PCLKDIV results:  play the same waveforms on both DAC1 and DAC2
 125  * and vary PCLKDIV to obtain zero beat.
 126  *  5512sps:  254
 127  * 44100sps:   30
 128  * seems to be fs = 1411200/(PCLKDIV+2)
 129  *
 130  * should find out when curr_sample_ct is cleared and
 131  * where exactly the CCB fetches data
 132  *
 133  * The card uses a 22.5792 MHz crystal.
 134  * The LINEIN jack may be converted to an AOUT jack by
 135  * setting pin 47 (XCTL0) of the ES1370 to high.
 136  * Pin 48 (XCTL1) of the ES1370 sets the +5V bias for an electretmic
 137  *
 138  *
 139  */
 140
 141 /*****************************************************************************/
 142
 143 #include <linux/interrupt.h>
 144 #include <linux/module.h>
 145 #include <linux/string.h>
 146 #include <linux/ioport.h>
 147 #include <linux/sched.h>
 148 #include <linux/delay.h>
 149 #include <linux/sound.h>
 150 #include <linux/slab.h>
 151 #include <linux/soundcard.h>
 152 #include <linux/pci.h>
 153 #include <linux/smp_lock.h>
 154 #include <linux/init.h>
 155 #include <linux/poll.h>
 156 #include <linux/spinlock.h>
 157 #include <linux/gameport.h>
 158 #include <linux/wait.h>
 159
 160 #include <asm/io.h>
 161 #include <asm/page.h>
 162 #include <asm/uaccess.h>
 163
 164 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
 165 #define SUPPORT_JOYSTICK
 166 #endif
 167
 168 /* --------------------------------------------------------------------- */
 169
 170 #undef OSS_DOCUMENTED_MIXER_SEMANTICS
 171 #define DBG(x) {}
 172 /*#define DBG(x) {x}*/
 173
 174 /* --------------------------------------------------------------------- */
 175
 176 #ifndef PCI_VENDOR_ID_ENSONIQ
 177 #define PCI_VENDOR_ID_ENSONIQ        0x1274
 178 #endif
 179
 180 #ifndef PCI_DEVICE_ID_ENSONIQ_ES1370
 181 #define PCI_DEVICE_ID_ENSONIQ_ES1370 0x5000
 182 #endif
 183
 184 #define ES1370_MAGIC  ((PCI_VENDOR_ID_ENSONIQ<<16)|PCI_DEVICE_ID_ENSONIQ_ES1370)
 185
 186 #define ES1370_EXTENT             0x40
 187 #define JOY_EXTENT                8
 188
 189 #define ES1370_REG_CONTROL        0x00
 190 #define ES1370_REG_STATUS         0x04
 191 #define ES1370_REG_UART_DATA      0x08
 192 #define ES1370_REG_UART_STATUS    0x09
 193 #define ES1370_REG_UART_CONTROL   0x09
 194 #define ES1370_REG_UART_TEST      0x0a
 195 #define ES1370_REG_MEMPAGE        0x0c
 196 #define ES1370_REG_CODEC          0x10
 197 #define ES1370_REG_SERIAL_CONTROL 0x20
 198 #define ES1370_REG_DAC1_SCOUNT    0x24
 199 #define ES1370_REG_DAC2_SCOUNT    0x28
 200 #define ES1370_REG_ADC_SCOUNT     0x2c
 201
 202 #define ES1370_REG_DAC1_FRAMEADR    0xc30
 203 #define ES1370_REG_DAC1_FRAMECNT    0xc34
 204 #define ES1370_REG_DAC2_FRAMEADR    0xc38
 205 #define ES1370_REG_DAC2_FRAMECNT    0xc3c
 206 #define ES1370_REG_ADC_FRAMEADR     0xd30
 207 #define ES1370_REG_ADC_FRAMECNT     0xd34
 208 #define ES1370_REG_PHANTOM_FRAMEADR 0xd38
 209 #define ES1370_REG_PHANTOM_FRAMECNT 0xd3c
 210
 211 #define ES1370_FMT_U8_MONO     0
 212 #define ES1370_FMT_U8_STEREO   1
 213 #define ES1370_FMT_S16_MONO    2
 214 #define ES1370_FMT_S16_STEREO  3
 215 #define ES1370_FMT_STEREO      1
 216 #define ES1370_FMT_S16         2
 217 #define ES1370_FMT_MASK        3
 218
 219 static const unsigned sample_size[] = { 1, 2, 2, 4 };
 220 static const unsigned sample_shift[] = { 0, 1, 1, 2 };
 221
 222 static const unsigned dac1_samplerate[] = { 5512, 11025, 22050, 44100 };
 223
 224 #define DAC2_SRTODIV(x) (((1411200+(x)/2)/(x))-2)
 225 #define DAC2_DIVTOSR(x) (1411200/((x)+2))
 226
 227 #define CTRL_ADC_STOP   0x80000000  /* 1 = ADC stopped */
 228 #define CTRL_XCTL1      0x40000000  /* electret mic bias */
 229 #define CTRL_OPEN       0x20000000  /* no function, can be read and written */
 230 #define CTRL_PCLKDIV    0x1fff0000  /* ADC/DAC2 clock divider */
 231 #define CTRL_SH_PCLKDIV 16
 232 #define CTRL_MSFMTSEL   0x00008000  /* MPEG serial data fmt: 0 = Sony, 1 = I2S */
 233 #define CTRL_M_SBB      0x00004000  /* DAC2 clock: 0 = PCLKDIV, 1 = MPEG */
 234 #define CTRL_WTSRSEL    0x00003000  /* DAC1 clock freq: 0=5512, 1=11025, 2=22050, 3=44100 */
 235 #define CTRL_SH_WTSRSEL 12
 236 #define CTRL_DAC_SYNC   0x00000800  /* 1 = DAC2 runs off DAC1 clock */
 237 #define CTRL_CCB_INTRM  0x00000400  /* 1 = CCB "voice" ints enabled */
 238 #define CTRL_M_CB       0x00000200  /* recording source: 0 = ADC, 1 = MPEG */
 239 #define CTRL_XCTL0      0x00000100  /* 0 = Line in, 1 = Line out */
 240 #define CTRL_BREQ       0x00000080  /* 1 = test mode (internal mem test) */
 241 #define CTRL_DAC1_EN    0x00000040  /* enable DAC1 */
 242 #define CTRL_DAC2_EN    0x00000020  /* enable DAC2 */
 243 #define CTRL_ADC_EN     0x00000010  /* enable ADC */
 244 #define CTRL_UART_EN    0x00000008  /* enable MIDI uart */
 245 #define CTRL_JYSTK_EN   0x00000004  /* enable Joystick port (presumably at address 0x200) */
 246 #define CTRL_CDC_EN     0x00000002  /* enable serial (CODEC) interface */
 247 #define CTRL_SERR_DIS   0x00000001  /* 1 = disable PCI SERR signal */
 248
 249 #define STAT_INTR       0x80000000  /* wired or of all interrupt bits */
 250 #define STAT_CSTAT      0x00000400  /* 1 = codec busy or codec write in progress */
 251 #define STAT_CBUSY      0x00000200  /* 1 = codec busy */
 252 #define STAT_CWRIP      0x00000100  /* 1 = codec write in progress */
 253 #define STAT_VC         0x00000060  /* CCB int source, 0=DAC1, 1=DAC2, 2=ADC, 3=undef */
 254 #define STAT_SH_VC      5
 255 #define STAT_MCCB       0x00000010  /* CCB int pending */
 256 #define STAT_UART       0x00000008  /* UART int pending */
 257 #define STAT_DAC1       0x00000004  /* DAC1 int pending */
 258 #define STAT_DAC2       0x00000002  /* DAC2 int pending */
 259 #define STAT_ADC        0x00000001  /* ADC int pending */
 260
 261 #define USTAT_RXINT     0x80        /* UART rx int pending */
 262 #define USTAT_TXINT     0x04        /* UART tx int pending */
 263 #define USTAT_TXRDY     0x02        /* UART tx ready */
 264 #define USTAT_RXRDY     0x01        /* UART rx ready */
 265
 266 #define UCTRL_RXINTEN   0x80        /* 1 = enable RX ints */
 267 #define UCTRL_TXINTEN   0x60        /* TX int enable field mask */
 268 #define UCTRL_ENA_TXINT 0x20        /* enable TX int */
 269 #define UCTRL_CNTRL     0x03        /* control field */
 270 #define UCTRL_CNTRL_SWR 0x03        /* software reset command */
 271
 272 #define SCTRL_P2ENDINC    0x00380000  /*  */
 273 #define SCTRL_SH_P2ENDINC 19
 274 #define SCTRL_P2STINC     0x00070000  /*  */
 275 #define SCTRL_SH_P2STINC  16
 276 #define SCTRL_R1LOOPSEL   0x00008000  /* 0 = loop mode */
 277 #define SCTRL_P2LOOPSEL   0x00004000  /* 0 = loop mode */
 278 #define SCTRL_P1LOOPSEL   0x00002000  /* 0 = loop mode */
 279 #define SCTRL_P2PAUSE     0x00001000  /* 1 = pause mode */
 280 #define SCTRL_P1PAUSE     0x00000800  /* 1 = pause mode */
 281 #define SCTRL_R1INTEN     0x00000400  /* enable interrupt */
 282 #define SCTRL_P2INTEN     0x00000200  /* enable interrupt */
 283 #define SCTRL_P1INTEN     0x00000100  /* enable interrupt */
 284 #define SCTRL_P1SCTRLD    0x00000080  /* reload sample count register for DAC1 */
 285 #define SCTRL_P2DACSEN    0x00000040  /* 1 = DAC2 play back last sample when disabled */
 286 #define SCTRL_R1SEB       0x00000020  /* 1 = 16bit */
 287 #define SCTRL_R1SMB       0x00000010  /* 1 = stereo */
 288 #define SCTRL_R1FMT       0x00000030  /* format mask */
 289 #define SCTRL_SH_R1FMT    4
 290 #define SCTRL_P2SEB       0x00000008  /* 1 = 16bit */
 291 #define SCTRL_P2SMB       0x00000004  /* 1 = stereo */
 292 #define SCTRL_P2FMT       0x0000000c  /* format mask */
 293 #define SCTRL_SH_P2FMT    2
 294 #define SCTRL_P1SEB       0x00000002  /* 1 = 16bit */
 295 #define SCTRL_P1SMB       0x00000001  /* 1 = stereo */
 296 #define SCTRL_P1FMT       0x00000003  /* format mask */
 297 #define SCTRL_SH_P1FMT    0
 298
 299 /* misc stuff */
 300
 301 #define FMODE_DAC         4           /* slight misuse of mode_t */
 302
 303 /* MIDI buffer sizes */
 304
 305 #define MIDIINBUF  256
 306 #define MIDIOUTBUF 256
 307
 308 #define FMODE_MIDI_SHIFT 3
 309 #define FMODE_MIDI_READ  (FMODE_READ << FMODE_MIDI_SHIFT)
 310 #define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
 311
 312 /* --------------------------------------------------------------------- */
 313
 314 struct es1370_state {
 315         /* magic */
 316         unsigned int magic;
 317
 318         /* list of es1370 devices */
 319         struct list_head devs;
 320
 321         /* the corresponding pci_dev structure */
 322         struct pci_dev *dev;
 323
 324         /* soundcore stuff */
 325         int dev_audio;
 326         int dev_mixer;
 327         int dev_dac;
 328         int dev_midi;
 329
 330         /* hardware resources */
 331         unsigned long io; /* long for SPARC */
 332         unsigned int irq;
 333
 334         /* mixer registers; there is no HW readback */
 335         struct {
 336                 unsigned short vol[10];
 337                 unsigned int recsrc;
 338                 unsigned int modcnt;
 339                 unsigned short micpreamp;
 340                 unsigned int imix;
 341         } mix;
 342
 343         /* wave stuff */
 344         unsigned ctrl;
 345         unsigned sctrl;
 346
 347         spinlock_t lock;
 348         struct semaphore open_sem;
 349         mode_t open_mode;
 350         wait_queue_head_t open_wait;
 351
 352         struct dmabuf {
 353                 void *rawbuf;
 354                 dma_addr_t dmaaddr;
 355                 unsigned buforder;
 356                 unsigned numfrag;
 357                 unsigned fragshift;
 358                 unsigned hwptr, swptr;
 359                 unsigned total_bytes;
 360                 int count;
 361                 unsigned error; /* over/underrun */
 362                 wait_queue_head_t wait;
 363                 /* redundant, but makes calculations easier */
 364                 unsigned fragsize;
 365                 unsigned dmasize;
 366                 unsigned fragsamples;
 367                 /* OSS stuff */
 368                 unsigned mapped:1;
 369                 unsigned ready:1;
 370                 unsigned endcleared:1;
 371                 unsigned enabled:1;
 372                 unsigned ossfragshift;
 373                 int ossmaxfrags;
 374                 unsigned subdivision;
 375         } dma_dac1, dma_dac2, dma_adc;
 376
 377         /* The following buffer is used to point the phantom write channel to. */
 378         unsigned char *bugbuf_cpu;
 379         dma_addr_t bugbuf_dma;
 380
 381         /* midi stuff */
 382         struct {
 383                 unsigned ird, iwr, icnt;
 384                 unsigned ord, owr, ocnt;
 385                 wait_queue_head_t iwait;
 386                 wait_queue_head_t owait;
 387                 unsigned char ibuf[MIDIINBUF];
 388                 unsigned char obuf[MIDIOUTBUF];
 389         } midi;
 390
 391 #ifdef SUPPORT_JOYSTICK
 392         struct gameport *gameport;
 393 #endif
 394
 395         struct semaphore sem;
 396 };
 397
 398 /* --------------------------------------------------------------------- */
 399
 400 static LIST_HEAD(devs);
 401
 402 /* --------------------------------------------------------------------- */
 403
 404 static inline unsigned ld2(unsigned int x)
 405 {
 406         unsigned r = 0;
 407
 408         if (x >= 0x10000) {
 409                 x >>= 16;
 410                 r += 16;
 411         }
 412         if (x >= 0x100) {
 413                 x >>= 8;
 414                 r += 8;
 415         }
 416         if (x >= 0x10) {
 417                 x >>= 4;
 418                 r += 4;
 419         }
 420         if (x >= 4) {
 421                 x >>= 2;
 422                 r += 2;
 423         }
 424         if (x >= 2)
 425                 r++;
 426         return r;
 427 }
 428
 429 /* --------------------------------------------------------------------- */
 430
 431 static void wrcodec(struct es1370_state *s, unsigned char idx, unsigned char data)
 432 {
 433         unsigned long tmo = jiffies + HZ/10, j;
 434
 435         do {
 436                 j = jiffies;
 437                 if (!(inl(s->io+ES1370_REG_STATUS) & STAT_CSTAT)) {
 438                         outw((((unsigned short)idx)<<8)|data, s->io+ES1370_REG_CODEC);
 439                         return;
 440                 }
 441                 schedule();
 442         } while ((signed)(tmo-j) > 0);
 443         printk(KERN_ERR "es1370: write to codec register timeout\n");
 444 }
 445
 446 /* --------------------------------------------------------------------- */
 447
 448 static inline void stop_adc(struct es1370_state *s)
 449 {
 450         unsigned long flags;
 451
 452         spin_lock_irqsave(&s->lock, flags);
 453         s->ctrl &= ~CTRL_ADC_EN;
 454         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 455         spin_unlock_irqrestore(&s->lock, flags);
 456 }
 457
 458 static inline void stop_dac1(struct es1370_state *s)
 459 {
 460         unsigned long flags;
 461
 462         spin_lock_irqsave(&s->lock, flags);
 463         s->ctrl &= ~CTRL_DAC1_EN;
 464         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 465         spin_unlock_irqrestore(&s->lock, flags);
 466 }
 467
 468 static inline void stop_dac2(struct es1370_state *s)
 469 {
 470         unsigned long flags;
 471
 472         spin_lock_irqsave(&s->lock, flags);
 473         s->ctrl &= ~CTRL_DAC2_EN;
 474         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 475         spin_unlock_irqrestore(&s->lock, flags);
 476 }
 477
 478 static void start_dac1(struct es1370_state *s)
 479 {
 480         unsigned long flags;
 481         unsigned fragremain, fshift;
 482
 483         spin_lock_irqsave(&s->lock, flags);
 484         if (!(s->ctrl & CTRL_DAC1_EN) && (s->dma_dac1.mapped || s->dma_dac1.count > 0)
 485             && s->dma_dac1.ready) {
 486                 s->ctrl |= CTRL_DAC1_EN;
 487                 s->sctrl = (s->sctrl & ~(SCTRL_P1LOOPSEL | SCTRL_P1PAUSE | SCTRL_P1SCTRLD)) | SCTRL_P1INTEN;
 488                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
 489                 fragremain = ((- s->dma_dac1.hwptr) & (s->dma_dac1.fragsize-1));
 490                 fshift = sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
 491                 if (fragremain < 2*fshift)
 492                         fragremain = s->dma_dac1.fragsize;
 493                 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
 494                 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 495                 outl((s->dma_dac1.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC1_SCOUNT);
 496         }
 497         spin_unlock_irqrestore(&s->lock, flags);
 498 }
 499
 500 static void start_dac2(struct es1370_state *s)
 501 {
 502         unsigned long flags;
 503         unsigned fragremain, fshift;
 504
 505         spin_lock_irqsave(&s->lock, flags);
 506         if (!(s->ctrl & CTRL_DAC2_EN) && (s->dma_dac2.mapped || s->dma_dac2.count > 0)
 507             && s->dma_dac2.ready) {
 508                 s->ctrl |= CTRL_DAC2_EN;
 509                 s->sctrl = (s->sctrl & ~(SCTRL_P2LOOPSEL | SCTRL_P2PAUSE | SCTRL_P2DACSEN |
 510                                          SCTRL_P2ENDINC | SCTRL_P2STINC)) | SCTRL_P2INTEN |
 511                         (((s->sctrl & SCTRL_P2FMT) ? 2 : 1) << SCTRL_SH_P2ENDINC) |
 512                         (0 << SCTRL_SH_P2STINC);
 513                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
 514                 fragremain = ((- s->dma_dac2.hwptr) & (s->dma_dac2.fragsize-1));
 515                 fshift = sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
 516                 if (fragremain < 2*fshift)
 517                         fragremain = s->dma_dac2.fragsize;
 518                 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
 519                 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 520                 outl((s->dma_dac2.fragsize >> fshift) - 1, s->io+ES1370_REG_DAC2_SCOUNT);
 521         }
 522         spin_unlock_irqrestore(&s->lock, flags);
 523 }
 524
 525 static void start_adc(struct es1370_state *s)
 526 {
 527         unsigned long flags;
 528         unsigned fragremain, fshift;
 529
 530         spin_lock_irqsave(&s->lock, flags);
 531         if (!(s->ctrl & CTRL_ADC_EN) && (s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
 532             && s->dma_adc.ready) {
 533                 s->ctrl |= CTRL_ADC_EN;
 534                 s->sctrl = (s->sctrl & ~SCTRL_R1LOOPSEL) | SCTRL_R1INTEN;
 535                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
 536                 fragremain = ((- s->dma_adc.hwptr) & (s->dma_adc.fragsize-1));
 537                 fshift = sample_shift[(s->sctrl & SCTRL_R1FMT) >> SCTRL_SH_R1FMT];
 538                 if (fragremain < 2*fshift)
 539                         fragremain = s->dma_adc.fragsize;
 540                 outl((fragremain >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
 541                 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 542                 outl((s->dma_adc.fragsize >> fshift) - 1, s->io+ES1370_REG_ADC_SCOUNT);
 543         }
 544         spin_unlock_irqrestore(&s->lock, flags);
 545 }
 546
 547 /* --------------------------------------------------------------------- */
 548
 549 #define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
 550 #define DMABUF_MINORDER 1
 551
 552 static inline void dealloc_dmabuf(struct es1370_state *s, struct dmabuf *db)
 553 {
 554         struct page *page, *pend;
 555
 556         if (db->rawbuf) {
 557                 /* undo marking the pages as reserved */
 558                 pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
 559                 for (page = virt_to_page(db->rawbuf); page <= pend; page++)
 560                         ClearPageReserved(page);
 561                 pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, db->rawbuf, db->dmaaddr);
 562         }
 563         db->rawbuf = NULL;
 564         db->mapped = db->ready = 0;
 565 }
 566
 567 static int prog_dmabuf(struct es1370_state *s, struct dmabuf *db, unsigned rate, unsigned fmt, unsigned reg)
 568 {
 569         int order;
 570         unsigned bytepersec;
 571         unsigned bufs;
 572         struct page *page, *pend;
 573
 574         db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
 575         if (!db->rawbuf) {
 576                 db->ready = db->mapped = 0;
 577                 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
 578                         if ((db->rawbuf = pci_alloc_consistent(s->dev, PAGE_SIZE << order, &db->dmaaddr)))
 579                                 break;
 580                 if (!db->rawbuf)
 581                         return -ENOMEM;
 582                 db->buforder = order;
 583                 /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
 584                 pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
 585                 for (page = virt_to_page(db->rawbuf); page <= pend; page++)
 586                         SetPageReserved(page);
 587         }
 588         fmt &= ES1370_FMT_MASK;
 589         bytepersec = rate << sample_shift[fmt];
 590         bufs = PAGE_SIZE << db->buforder;
 591         if (db->ossfragshift) {
 592                 if ((1000 << db->ossfragshift) < bytepersec)
 593                         db->fragshift = ld2(bytepersec/1000);
 594                 else
 595                         db->fragshift = db->ossfragshift;
 596         } else {
 597                 db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
 598                 if (db->fragshift < 3)
 599                         db->fragshift = 3;
 600         }
 601         db->numfrag = bufs >> db->fragshift;
 602         while (db->numfrag < 4 && db->fragshift > 3) {
 603                 db->fragshift--;
 604                 db->numfrag = bufs >> db->fragshift;
 605         }
 606         db->fragsize = 1 << db->fragshift;
 607         if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
 608                 db->numfrag = db->ossmaxfrags;
 609         db->fragsamples = db->fragsize >> sample_shift[fmt];
 610         db->dmasize = db->numfrag << db->fragshift;
 611         memset(db->rawbuf, (fmt & ES1370_FMT_S16) ? 0 : 0x80, db->dmasize);
 612         outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
 613         outl(db->dmaaddr, s->io+(reg & 0xff));
 614         outl((db->dmasize >> 2)-1, s->io+((reg + 4) & 0xff));
 615         db->enabled = 1;
 616         db->ready = 1;
 617         return 0;
 618 }
 619
 620 static inline int prog_dmabuf_adc(struct es1370_state *s)
 621 {
 622         stop_adc(s);
 623         return prog_dmabuf(s, &s->dma_adc, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
 624                            (s->sctrl >> SCTRL_SH_R1FMT) & ES1370_FMT_MASK, ES1370_REG_ADC_FRAMEADR);
 625 }
 626
 627 static inline int prog_dmabuf_dac2(struct es1370_state *s)
 628 {
 629         stop_dac2(s);
 630         return prog_dmabuf(s, &s->dma_dac2, DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV),
 631                            (s->sctrl >> SCTRL_SH_P2FMT) & ES1370_FMT_MASK, ES1370_REG_DAC2_FRAMEADR);
 632 }
 633
 634 static inline int prog_dmabuf_dac1(struct es1370_state *s)
 635 {
 636         stop_dac1(s);
 637         return prog_dmabuf(s, &s->dma_dac1, dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL],
 638                            (s->sctrl >> SCTRL_SH_P1FMT) & ES1370_FMT_MASK, ES1370_REG_DAC1_FRAMEADR);
 639 }
 640
 641 static inline unsigned get_hwptr(struct es1370_state *s, struct dmabuf *db, unsigned reg)
 642 {
 643         unsigned hwptr, diff;
 644
 645         outl((reg >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
 646         hwptr = (inl(s->io+(reg & 0xff)) >> 14) & 0x3fffc;
 647         diff = (db->dmasize + hwptr - db->hwptr) % db->dmasize;
 648         db->hwptr = hwptr;
 649         return diff;
 650 }
 651
 652 static inline void clear_advance(void *buf, unsigned bsize, unsigned bptr, unsigned len, unsigned char c)
 653 {
 654         if (bptr + len > bsize) {
 655                 unsigned x = bsize - bptr;
 656                 memset(((char *)buf) + bptr, c, x);
 657                 bptr = 0;
 658                 len -= x;
 659         }
 660         memset(((char *)buf) + bptr, c, len);
 661 }
 662
 663 /* call with spinlock held! */
 664 static void es1370_update_ptr(struct es1370_state *s)
 665 {
 666         int diff;
 667
 668         /* update ADC pointer */
 669         if (s->ctrl & CTRL_ADC_EN) {
 670                 diff = get_hwptr(s, &s->dma_adc, ES1370_REG_ADC_FRAMECNT);
 671                 s->dma_adc.total_bytes += diff;
 672                 s->dma_adc.count += diff;
 673                 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
 674                         wake_up(&s->dma_adc.wait);
 675                 if (!s->dma_adc.mapped) {
 676                         if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
 677                                 s->ctrl &= ~CTRL_ADC_EN;
 678                                 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 679                                 s->dma_adc.error++;
 680                         }
 681                 }
 682         }
 683         /* update DAC1 pointer */
 684         if (s->ctrl & CTRL_DAC1_EN) {
 685                 diff = get_hwptr(s, &s->dma_dac1, ES1370_REG_DAC1_FRAMECNT);
 686                 s->dma_dac1.total_bytes += diff;
 687                 if (s->dma_dac1.mapped) {
 688                         s->dma_dac1.count += diff;
 689                         if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
 690                                 wake_up(&s->dma_dac1.wait);
 691                 } else {
 692                         s->dma_dac1.count -= diff;
 693                         if (s->dma_dac1.count <= 0) {
 694                                 s->ctrl &= ~CTRL_DAC1_EN;
 695                                 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 696                                 s->dma_dac1.error++;
 697                         } else if (s->dma_dac1.count <= (signed)s->dma_dac1.fragsize && !s->dma_dac1.endcleared) {
 698                                 clear_advance(s->dma_dac1.rawbuf, s->dma_dac1.dmasize, s->dma_dac1.swptr,
 699                                               s->dma_dac1.fragsize, (s->sctrl & SCTRL_P1SEB) ? 0 : 0x80);
 700                                 s->dma_dac1.endcleared = 1;
 701                         }
 702                         if (s->dma_dac1.count + (signed)s->dma_dac1.fragsize <= (signed)s->dma_dac1.dmasize)
 703                                 wake_up(&s->dma_dac1.wait);
 704                 }
 705         }
 706         /* update DAC2 pointer */
 707         if (s->ctrl & CTRL_DAC2_EN) {
 708                 diff = get_hwptr(s, &s->dma_dac2, ES1370_REG_DAC2_FRAMECNT);
 709                 s->dma_dac2.total_bytes += diff;
 710                 if (s->dma_dac2.mapped) {
 711                         s->dma_dac2.count += diff;
 712                         if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
 713                                 wake_up(&s->dma_dac2.wait);
 714                 } else {
 715                         s->dma_dac2.count -= diff;
 716                         if (s->dma_dac2.count <= 0) {
 717                                 s->ctrl &= ~CTRL_DAC2_EN;
 718                                 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 719                                 s->dma_dac2.error++;
 720                         } else if (s->dma_dac2.count <= (signed)s->dma_dac2.fragsize && !s->dma_dac2.endcleared) {
 721                                 clear_advance(s->dma_dac2.rawbuf, s->dma_dac2.dmasize, s->dma_dac2.swptr,
 722                                               s->dma_dac2.fragsize, (s->sctrl & SCTRL_P2SEB) ? 0 : 0x80);
 723                                 s->dma_dac2.endcleared = 1;
 724                         }
 725                         if (s->dma_dac2.count + (signed)s->dma_dac2.fragsize <= (signed)s->dma_dac2.dmasize)
 726                                 wake_up(&s->dma_dac2.wait);
 727                 }
 728         }
 729 }
 730
 731 /* hold spinlock for the following! */
 732 static void es1370_handle_midi(struct es1370_state *s)
 733 {
 734         unsigned char ch;
 735         int wake;
 736
 737         if (!(s->ctrl & CTRL_UART_EN))
 738                 return;
 739         wake = 0;
 740         while (inb(s->io+ES1370_REG_UART_STATUS) & USTAT_RXRDY) {
 741                 ch = inb(s->io+ES1370_REG_UART_DATA);
 742                 if (s->midi.icnt < MIDIINBUF) {
 743                         s->midi.ibuf[s->midi.iwr] = ch;
 744                         s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
 745                         s->midi.icnt++;
 746                 }
 747                 wake = 1;
 748         }
 749         if (wake)
 750                 wake_up(&s->midi.iwait);
 751         wake = 0;
 752         while ((inb(s->io+ES1370_REG_UART_STATUS) & USTAT_TXRDY) && s->midi.ocnt > 0) {
 753                 outb(s->midi.obuf[s->midi.ord], s->io+ES1370_REG_UART_DATA);
 754                 s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
 755                 s->midi.ocnt--;
 756                 if (s->midi.ocnt < MIDIOUTBUF-16)
 757                         wake = 1;
 758         }
 759         if (wake)
 760                 wake_up(&s->midi.owait);
 761         outb((s->midi.ocnt > 0) ? UCTRL_RXINTEN | UCTRL_ENA_TXINT : UCTRL_RXINTEN, s->io+ES1370_REG_UART_CONTROL);
 762 }
 763
 764 static irqreturn_t es1370_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 765 {
 766         struct es1370_state *s = (struct es1370_state *)dev_id;
 767         unsigned int intsrc, sctl;
 768
 769         /* fastpath out, to ease interrupt sharing */
 770         intsrc = inl(s->io+ES1370_REG_STATUS);
 771         if (!(intsrc & 0x80000000))
 772                 return IRQ_NONE;
 773         spin_lock(&s->lock);
 774         /* clear audio interrupts first */
 775         sctl = s->sctrl;
 776         if (intsrc & STAT_ADC)
 777                 sctl &= ~SCTRL_R1INTEN;
 778         if (intsrc & STAT_DAC1)
 779                 sctl &= ~SCTRL_P1INTEN;
 780         if (intsrc & STAT_DAC2)
 781                 sctl &= ~SCTRL_P2INTEN;
 782         outl(sctl, s->io+ES1370_REG_SERIAL_CONTROL);
 783         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
 784         es1370_update_ptr(s);
 785         es1370_handle_midi(s);
 786         spin_unlock(&s->lock);
 787         return IRQ_HANDLED;
 788 }
 789
 790 /* --------------------------------------------------------------------- */
 791
 792 static const char invalid_magic[] = KERN_CRIT "es1370: invalid magic value\n";
 793
 794 #define VALIDATE_STATE(s)                         \
 795 ({                                                \
 796         if (!(s) || (s)->magic != ES1370_MAGIC) { \
 797                 printk(invalid_magic);            \
 798                 return -ENXIO;                    \
 799         }                                         \
 800 })
 801
 802 /* --------------------------------------------------------------------- */
 803
 804 static const struct {
 805         unsigned volidx:4;
 806         unsigned left:4;
 807         unsigned right:4;
 808         unsigned stereo:1;
 809         unsigned recmask:13;
 810         unsigned avail:1;
 811 } mixtable[SOUND_MIXER_NRDEVICES] = {
 812         [SOUND_MIXER_VOLUME] = { 0, 0x0, 0x1, 1, 0x0000, 1 },   /* master */
 813         [SOUND_MIXER_PCM]    = { 1, 0x2, 0x3, 1, 0x0400, 1 },   /* voice */
 814         [SOUND_MIXER_SYNTH]  = { 2, 0x4, 0x5, 1, 0x0060, 1 },   /* FM */
 815         [SOUND_MIXER_CD]     = { 3, 0x6, 0x7, 1, 0x0006, 1 },   /* CD */
 816         [SOUND_MIXER_LINE]   = { 4, 0x8, 0x9, 1, 0x0018, 1 },   /* Line */
 817         [SOUND_MIXER_LINE1]  = { 5, 0xa, 0xb, 1, 0x1800, 1 },   /* AUX */
 818         [SOUND_MIXER_LINE2]  = { 6, 0xc, 0x0, 0, 0x0100, 1 },   /* Mono1 */
 819         [SOUND_MIXER_LINE3]  = { 7, 0xd, 0x0, 0, 0x0200, 1 },   /* Mono2 */
 820         [SOUND_MIXER_MIC]    = { 8, 0xe, 0x0, 0, 0x0001, 1 },   /* Mic */
 821         [SOUND_MIXER_OGAIN]  = { 9, 0xf, 0x0, 0, 0x0000, 1 }    /* mono out */
 822 };
 823
 824 static void set_recsrc(struct es1370_state *s, unsigned int val)
 825 {
 826         unsigned int i, j;
 827
 828         for (j = i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
 829                 if (!(val & (1 << i)))
 830                         continue;
 831                 if (!mixtable[i].recmask) {
 832                         val &= ~(1 << i);
 833                         continue;
 834                 }
 835                 j |= mixtable[i].recmask;
 836         }
 837         s->mix.recsrc = val;
 838         wrcodec(s, 0x12, j & 0xd5);
 839         wrcodec(s, 0x13, j & 0xaa);
 840         wrcodec(s, 0x14, (j >> 8) & 0x17);
 841         wrcodec(s, 0x15, (j >> 8) & 0x0f);
 842         i = (j & 0x37f) | ((j << 1) & 0x3000) | 0xc60;
 843         if (!s->mix.imix) {
 844                 i &= 0xff60;  /* mute record and line monitor */
 845         }
 846         wrcodec(s, 0x10, i);
 847         wrcodec(s, 0x11, i >> 8);
 848 }
 849
 850 static int mixer_ioctl(struct es1370_state *s, unsigned int cmd, unsigned long arg)
 851 {
 852         unsigned long flags;
 853         int i, val;
 854         unsigned char l, r, rl, rr;
 855         int __user *p = (int __user *)arg;
 856
 857         VALIDATE_STATE(s);
 858         if (cmd == SOUND_MIXER_PRIVATE1) {
 859                 /* enable/disable/query mixer preamp */
 860                 if (get_user(val, p))
 861                         return -EFAULT;
 862                 if (val != -1) {
 863                         s->mix.micpreamp = !!val;
 864                         wrcodec(s, 0x19, s->mix.micpreamp);
 865                 }
 866                 return put_user(s->mix.micpreamp, p);
 867         }
 868         if (cmd == SOUND_MIXER_PRIVATE2) {
 869                 /* enable/disable/query use of linein as second lineout */
 870                 if (get_user(val, p))
 871                         return -EFAULT;
 872                 if (val != -1) {
 873                         spin_lock_irqsave(&s->lock, flags);
 874                         if (val)
 875                                 s->ctrl |= CTRL_XCTL0;
 876                         else
 877                                 s->ctrl &= ~CTRL_XCTL0;
 878                         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 879                         spin_unlock_irqrestore(&s->lock, flags);
 880                 }
 881                 return put_user((s->ctrl & CTRL_XCTL0) ? 1 : 0, p);
 882         }
 883         if (cmd == SOUND_MIXER_PRIVATE3) {
 884                 /* enable/disable/query microphone impedance setting */
 885                 if (get_user(val, p))
 886                         return -EFAULT;
 887                 if (val != -1) {
 888                         spin_lock_irqsave(&s->lock, flags);
 889                         if (val)
 890                                 s->ctrl |= CTRL_XCTL1;
 891                         else
 892                                 s->ctrl &= ~CTRL_XCTL1;
 893                         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 894                         spin_unlock_irqrestore(&s->lock, flags);
 895                 }
 896                 return put_user((s->ctrl & CTRL_XCTL1) ? 1 : 0, p);
 897         }
 898         if (cmd == SOUND_MIXER_INFO) {
 899                 mixer_info info;
 900                 strncpy(info.id, "ES1370", sizeof(info.id));
 901                 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
 902                 info.modify_counter = s->mix.modcnt;
 903                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
 904                         return -EFAULT;
 905                 return 0;
 906         }
 907         if (cmd == SOUND_OLD_MIXER_INFO) {
 908                 _old_mixer_info info;
 909                 strncpy(info.id, "ES1370", sizeof(info.id));
 910                 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
 911                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
 912                         return -EFAULT;
 913                 return 0;
 914         }
 915         if (cmd == OSS_GETVERSION)
 916                 return put_user(SOUND_VERSION, p);
 917         if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int))
 918                 return -EINVAL;
 919         if (_SIOC_DIR(cmd) == _SIOC_READ) {
 920                 switch (_IOC_NR(cmd)) {
 921                 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
 922                         return put_user(s->mix.recsrc, p);
 923
 924                 case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
 925                         val = SOUND_MASK_IMIX;
 926                         for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
 927                                 if (mixtable[i].avail)
 928                                         val |= 1 << i;
 929                         return put_user(val, p);
 930
 931                 case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
 932                         for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
 933                                 if (mixtable[i].recmask)
 934                                         val |= 1 << i;
 935                         return put_user(val, p);
 936
 937                 case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
 938                         for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
 939                                 if (mixtable[i].stereo)
 940                                         val |= 1 << i;
 941                         return put_user(val, p);
 942
 943                 case SOUND_MIXER_CAPS:
 944                         return put_user(0, p);
 945
 946                 case SOUND_MIXER_IMIX:
 947                         return put_user(s->mix.imix, p);
 948
 949                 default:
 950                         i = _IOC_NR(cmd);
 951                         if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
 952                                 return -EINVAL;
 953                         return put_user(s->mix.vol[mixtable[i].volidx], p);
 954                 }
 955         }
 956         if (_SIOC_DIR(cmd) != (_SIOC_READ|_SIOC_WRITE))
 957                 return -EINVAL;
 958         s->mix.modcnt++;
 959         switch (_IOC_NR(cmd)) {
 960
 961         case SOUND_MIXER_IMIX:
 962                 if (get_user(s->mix.imix, p))
 963                         return -EFAULT;
 964                 set_recsrc(s, s->mix.recsrc);
 965                 return 0;
 966
 967         case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
 968                 if (get_user(val, p))
 969                         return -EFAULT;
 970                 set_recsrc(s, val);
 971                 return 0;
 972
 973         default:
 974                 i = _IOC_NR(cmd);
 975                 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
 976                         return -EINVAL;
 977                 if (get_user(val, p))
 978                         return -EFAULT;
 979                 l = val & 0xff;
 980                 if (l > 100)
 981                         l = 100;
 982                 if (mixtable[i].stereo) {
 983                         r = (val >> 8) & 0xff;
 984                         if (r > 100)
 985                                 r = 100;
 986                         if (l < 7) {
 987                                 rl = 0x80;
 988                                 l = 0;
 989                         } else {
 990                                 rl = 31 - ((l - 7) / 3);
 991                                 l = (31 - rl) * 3 + 7;
 992                         }
 993                         if (r < 7) {
 994                                 rr = 0x80;
 995                                 r = 0;
 996                         } else {
 997                                 rr =  31 - ((r - 7) / 3);
 998                                 r = (31 - rr) * 3 + 7;
 999                         }
1000                         wrcodec(s, mixtable[i].right, rr);
1001                 } else {
1002                         if (mixtable[i].left == 15) {
1003                                 if (l < 2) {
1004                                         rr = rl = 0x80;
1005                                         r = l = 0;
1006                                 } else {
1007                                         rl = 7 - ((l - 2) / 14);
1008                                         r = l = (7 - rl) * 14 + 2;
1009                                 }
1010                         } else {
1011                                 if (l < 7) {
1012                                         rl = 0x80;
1013                                         r = l = 0;
1014                                 } else {
1015                                         rl = 31 - ((l - 7) / 3);
1016                                         r = l = (31 - rl) * 3 + 7;
1017                                 }
1018                         }
1019                 }
1020                 wrcodec(s, mixtable[i].left, rl);
1021 #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
1022                 s->mix.vol[mixtable[i].volidx] = ((unsigned int)r << 8) | l;
1023 #else
1024                 s->mix.vol[mixtable[i].volidx] = val;
1025 #endif
1026                 return put_user(s->mix.vol[mixtable[i].volidx], p);
1027         }
1028 }
1029
1030 /* --------------------------------------------------------------------- */
1031
1032 static int es1370_open_mixdev(struct inode *inode, struct file *file)
1033 {
1034         unsigned int minor = iminor(inode);
1035         struct list_head *list;
1036         struct es1370_state *s;
1037
1038         for (list = devs.next; ; list = list->next) {
1039                 if (list == &devs)
1040                         return -ENODEV;
1041                 s = list_entry(list, struct es1370_state, devs);
1042                 if (s->dev_mixer == minor)
1043                         break;
1044         }
1045         VALIDATE_STATE(s);
1046         file->private_data = s;
1047         return nonseekable_open(inode, file);
1048 }
1049
1050 static int es1370_release_mixdev(struct inode *inode, struct file *file)
1051 {
1052         struct es1370_state *s = (struct es1370_state *)file->private_data;
1053
1054         VALIDATE_STATE(s);
1055         return 0;
1056 }
1057
1058 static int es1370_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1059 {
1060         return mixer_ioctl((struct es1370_state *)file->private_data, cmd, arg);
1061 }
1062
1063 static /*const*/ struct file_operations es1370_mixer_fops = {
1064         .owner          = THIS_MODULE,
1065         .llseek         = no_llseek,
1066         .ioctl          = es1370_ioctl_mixdev,
1067         .open           = es1370_open_mixdev,
1068         .release        = es1370_release_mixdev,
1069 };
1070
1071 /* --------------------------------------------------------------------- */
1072
1073 static int drain_dac1(struct es1370_state *s, int nonblock)
1074 {
1075         DECLARE_WAITQUEUE(wait, current);
1076         unsigned long flags;
1077         int count, tmo;
1078
1079         if (s->dma_dac1.mapped || !s->dma_dac1.ready)
1080                 return 0;
1081         add_wait_queue(&s->dma_dac1.wait, &wait);
1082         for (;;) {
1083                 __set_current_state(TASK_INTERRUPTIBLE);
1084                 spin_lock_irqsave(&s->lock, flags);
1085                 count = s->dma_dac1.count;
1086                 spin_unlock_irqrestore(&s->lock, flags);
1087                 if (count <= 0)
1088                         break;
1089                 if (signal_pending(current))
1090                         break;
1091                 if (nonblock) {
1092                         remove_wait_queue(&s->dma_dac1.wait, &wait);
1093                         set_current_state(TASK_RUNNING);
1094                         return -EBUSY;
1095                 }
1096                 tmo = 3 * HZ * (count + s->dma_dac1.fragsize) / 2
1097                         / dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL];
1098                 tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
1099                 if (!schedule_timeout(tmo + 1))
1100                         DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1101         }
1102         remove_wait_queue(&s->dma_dac1.wait, &wait);
1103         set_current_state(TASK_RUNNING);
1104         if (signal_pending(current))
1105                 return -ERESTARTSYS;
1106         return 0;
1107 }
1108
1109 static int drain_dac2(struct es1370_state *s, int nonblock)
1110 {
1111         DECLARE_WAITQUEUE(wait, current);
1112         unsigned long flags;
1113         int count, tmo;
1114
1115         if (s->dma_dac2.mapped || !s->dma_dac2.ready)
1116                 return 0;
1117         add_wait_queue(&s->dma_dac2.wait, &wait);
1118         for (;;) {
1119                 __set_current_state(TASK_INTERRUPTIBLE);
1120                 spin_lock_irqsave(&s->lock, flags);
1121                 count = s->dma_dac2.count;
1122                 spin_unlock_irqrestore(&s->lock, flags);
1123                 if (count <= 0)
1124                         break;
1125                 if (signal_pending(current))
1126                         break;
1127                 if (nonblock) {
1128                         remove_wait_queue(&s->dma_dac2.wait, &wait);
1129                         set_current_state(TASK_RUNNING);
1130                         return -EBUSY;
1131                 }
1132                 tmo = 3 * HZ * (count + s->dma_dac2.fragsize) / 2
1133                         / DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV);
1134                 tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
1135                 if (!schedule_timeout(tmo + 1))
1136                         DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1137         }
1138         remove_wait_queue(&s->dma_dac2.wait, &wait);
1139         set_current_state(TASK_RUNNING);
1140         if (signal_pending(current))
1141                 return -ERESTARTSYS;
1142         return 0;
1143 }
1144
1145 /* --------------------------------------------------------------------- */
1146
1147 static ssize_t es1370_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
1148 {
1149         struct es1370_state *s = (struct es1370_state *)file->private_data;
1150         DECLARE_WAITQUEUE(wait, current);
1151         ssize_t ret = 0;
1152         unsigned long flags;
1153         unsigned swptr;
1154         int cnt;
1155
1156         VALIDATE_STATE(s);
1157         if (s->dma_adc.mapped)
1158                 return -ENXIO;
1159         if (!access_ok(VERIFY_WRITE, buffer, count))
1160                 return -EFAULT;
1161         down(&s->sem);
1162         if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1163                 goto out;
1164
1165         add_wait_queue(&s->dma_adc.wait, &wait);
1166         while (count > 0) {
1167                 spin_lock_irqsave(&s->lock, flags);
1168                 swptr = s->dma_adc.swptr;
1169                 cnt = s->dma_adc.dmasize-swptr;
1170                 if (s->dma_adc.count < cnt)
1171                         cnt = s->dma_adc.count;
1172                 if (cnt <= 0)
1173                         __set_current_state(TASK_INTERRUPTIBLE);
1174                 spin_unlock_irqrestore(&s->lock, flags);
1175                 if (cnt > count)
1176                         cnt = count;
1177                 if (cnt <= 0) {
1178                         if (s->dma_adc.enabled)
1179                                 start_adc(s);
1180                         if (file->f_flags & O_NONBLOCK) {
1181                                 if (!ret)
1182                                         ret = -EAGAIN;
1183                                 goto out;
1184                         }
1185                         up(&s->sem);
1186                         schedule();
1187                         if (signal_pending(current)) {
1188                                 if (!ret)
1189                                         ret = -ERESTARTSYS;
1190                                 goto out;
1191                         }
1192                         down(&s->sem);
1193                         if (s->dma_adc.mapped)
1194                         {
1195                                 ret = -ENXIO;
1196                                 goto out;
1197                         }
1198                         continue;
1199                 }
1200                 if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
1201                         if (!ret)
1202                                 ret = -EFAULT;
1203                         goto out;
1204                 }
1205                 swptr = (swptr + cnt) % s->dma_adc.dmasize;
1206                 spin_lock_irqsave(&s->lock, flags);
1207                 s->dma_adc.swptr = swptr;
1208                 s->dma_adc.count -= cnt;
1209                 spin_unlock_irqrestore(&s->lock, flags);
1210                 count -= cnt;
1211                 buffer += cnt;
1212                 ret += cnt;
1213                 if (s->dma_adc.enabled)
1214                         start_adc(s);
1215         }
1216 out:
1217         up(&s->sem);
1218         remove_wait_queue(&s->dma_adc.wait, &wait);
1219         set_current_state(TASK_RUNNING);
1220         return ret;
1221 }
1222
1223 static ssize_t es1370_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
1224 {
1225         struct es1370_state *s = (struct es1370_state *)file->private_data;
1226         DECLARE_WAITQUEUE(wait, current);
1227         ssize_t ret = 0;
1228         unsigned long flags;
1229         unsigned swptr;
1230         int cnt;
1231
1232         VALIDATE_STATE(s);
1233         if (s->dma_dac2.mapped)
1234                 return -ENXIO;
1235         if (!access_ok(VERIFY_READ, buffer, count))
1236                 return -EFAULT;
1237         down(&s->sem);
1238         if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1239                 goto out;
1240         ret = 0;
1241         add_wait_queue(&s->dma_dac2.wait, &wait);
1242         while (count > 0) {
1243                 spin_lock_irqsave(&s->lock, flags);
1244                 if (s->dma_dac2.count < 0) {
1245                         s->dma_dac2.count = 0;
1246                         s->dma_dac2.swptr = s->dma_dac2.hwptr;
1247                 }
1248                 swptr = s->dma_dac2.swptr;
1249                 cnt = s->dma_dac2.dmasize-swptr;
1250                 if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize)
1251                         cnt = s->dma_dac2.dmasize - s->dma_dac2.count;
1252                 if (cnt <= 0)
1253                         __set_current_state(TASK_INTERRUPTIBLE);
1254                 spin_unlock_irqrestore(&s->lock, flags);
1255                 if (cnt > count)
1256                         cnt = count;
1257                 if (cnt <= 0) {
1258                         if (s->dma_dac2.enabled)
1259                                 start_dac2(s);
1260                         if (file->f_flags & O_NONBLOCK) {
1261                                 if (!ret)
1262                                         ret = -EAGAIN;
1263                                 goto out;
1264                         }
1265                         up(&s->sem);
1266                         schedule();
1267                         if (signal_pending(current)) {
1268                                 if (!ret)
1269                                         ret = -ERESTARTSYS;
1270                                 goto out;
1271                         }
1272                         down(&s->sem);
1273                         if (s->dma_dac2.mapped)
1274                         {
1275                         ret = -ENXIO;
1276                         goto out;
1277                         }
1278                         continue;
1279                 }
1280                 if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt)) {
1281                         if (!ret)
1282                                 ret = -EFAULT;
1283                         goto out;
1284                 }
1285                 swptr = (swptr + cnt) % s->dma_dac2.dmasize;
1286                 spin_lock_irqsave(&s->lock, flags);
1287                 s->dma_dac2.swptr = swptr;
1288                 s->dma_dac2.count += cnt;
1289                 s->dma_dac2.endcleared = 0;
1290                 spin_unlock_irqrestore(&s->lock, flags);
1291                 count -= cnt;
1292                 buffer += cnt;
1293                 ret += cnt;
1294                 if (s->dma_dac2.enabled)
1295                         start_dac2(s);
1296         }
1297 out:
1298         up(&s->sem);
1299         remove_wait_queue(&s->dma_dac2.wait, &wait);
1300         set_current_state(TASK_RUNNING);
1301         return ret;
1302 }
1303
1304 /* No kernel lock - we have our own spinlock */
1305 static unsigned int es1370_poll(struct file *file, struct poll_table_struct *wait)
1306 {
1307         struct es1370_state *s = (struct es1370_state *)file->private_data;
1308         unsigned long flags;
1309         unsigned int mask = 0;
1310
1311         VALIDATE_STATE(s);
1312         if (file->f_mode & FMODE_WRITE) {
1313                 if (!s->dma_dac2.ready && prog_dmabuf_dac2(s))
1314                         return 0;
1315                 poll_wait(file, &s->dma_dac2.wait, wait);
1316         }
1317         if (file->f_mode & FMODE_READ) {
1318                 if (!s->dma_adc.ready && prog_dmabuf_adc(s))
1319                         return 0;
1320                 poll_wait(file, &s->dma_adc.wait, wait);
1321         }
1322         spin_lock_irqsave(&s->lock, flags);
1323         es1370_update_ptr(s);
1324         if (file->f_mode & FMODE_READ) {
1325                 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
1326                         mask |= POLLIN | POLLRDNORM;
1327         }
1328         if (file->f_mode & FMODE_WRITE) {
1329                 if (s->dma_dac2.mapped) {
1330                         if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
1331                                 mask |= POLLOUT | POLLWRNORM;
1332                 } else {
1333                         if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize)
1334                                 mask |= POLLOUT | POLLWRNORM;
1335                 }
1336         }
1337         spin_unlock_irqrestore(&s->lock, flags);
1338         return mask;
1339 }
1340
1341 static int es1370_mmap(struct file *file, struct vm_area_struct *vma)
1342 {
1343         struct es1370_state *s = (struct es1370_state *)file->private_data;
1344         struct dmabuf *db;
1345         int ret = 0;
1346         unsigned long size;
1347
1348         VALIDATE_STATE(s);
1349         lock_kernel();
1350         down(&s->sem);
1351         if (vma->vm_flags & VM_WRITE) {
1352                 if ((ret = prog_dmabuf_dac2(s)) != 0) {
1353                         goto out;
1354                 }
1355                 db = &s->dma_dac2;
1356         } else if (vma->vm_flags & VM_READ) {
1357                 if ((ret = prog_dmabuf_adc(s)) != 0) {
1358                         goto out;
1359                 }
1360                 db = &s->dma_adc;
1361         } else  {
1362                 ret = -EINVAL;
1363                 goto out;
1364         }
1365         if (vma->vm_pgoff != 0) {
1366                 ret = -EINVAL;
1367                 goto out;
1368         }
1369         size = vma->vm_end - vma->vm_start;
1370         if (size > (PAGE_SIZE << db->buforder)) {
1371                 ret = -EINVAL;
1372                 goto out;
1373         }
1374         if (remap_pfn_range(vma, vma->vm_start,
1375                                 virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
1376                                 size, vma->vm_page_prot)) {
1377                 ret = -EAGAIN;
1378                 goto out;
1379         }
1380         db->mapped = 1;
1381 out:
1382         up(&s->sem);
1383         unlock_kernel();
1384         return ret;
1385 }
1386
1387 static int es1370_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1388 {
1389         struct es1370_state *s = (struct es1370_state *)file->private_data;
1390         unsigned long flags;
1391         audio_buf_info abinfo;
1392         count_info cinfo;
1393         int count;
1394         int val, mapped, ret;
1395         void __user *argp = (void __user *)arg;
1396         int __user *p = argp;
1397
1398         VALIDATE_STATE(s);
1399         mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) ||
1400                 ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
1401         switch (cmd) {
1402         case OSS_GETVERSION:
1403                 return put_user(SOUND_VERSION, p);
1404
1405         case SNDCTL_DSP_SYNC:
1406                 if (file->f_mode & FMODE_WRITE)
1407                         return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/);
1408                 return 0;
1409
1410         case SNDCTL_DSP_SETDUPLEX:
1411                 return 0;
1412
1413         case SNDCTL_DSP_GETCAPS:
1414                 return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
1415
1416         case SNDCTL_DSP_RESET:
1417                 if (file->f_mode & FMODE_WRITE) {
1418                         stop_dac2(s);
1419                         synchronize_irq(s->irq);
1420                         s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0;
1421                 }
1422                 if (file->f_mode & FMODE_READ) {
1423                         stop_adc(s);
1424                         synchronize_irq(s->irq);
1425                         s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
1426                 }
1427                 return 0;
1428
1429         case SNDCTL_DSP_SPEED:
1430                 if (get_user(val, p))
1431                         return -EFAULT;
1432                 if (val >= 0) {
1433                         if (s->open_mode & (~file->f_mode) & (FMODE_READ|FMODE_WRITE))
1434                                 return -EINVAL;
1435                         if (val < 4000)
1436                                 val = 4000;
1437                         if (val > 50000)
1438                                 val = 50000;
1439                         stop_adc(s);
1440                         stop_dac2(s);
1441                         s->dma_adc.ready = s->dma_dac2.ready = 0;
1442                         spin_lock_irqsave(&s->lock, flags);
1443                         s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(val) << CTRL_SH_PCLKDIV);
1444                         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1445                         spin_unlock_irqrestore(&s->lock, flags);
1446                 }
1447                 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), p);
1448
1449         case SNDCTL_DSP_STEREO:
1450                 if (get_user(val, p))
1451                         return -EFAULT;
1452                 if (file->f_mode & FMODE_READ) {
1453                         stop_adc(s);
1454                         s->dma_adc.ready = 0;
1455                         spin_lock_irqsave(&s->lock, flags);
1456                         if (val)
1457                                 s->sctrl |= SCTRL_R1SMB;
1458                         else
1459                                 s->sctrl &= ~SCTRL_R1SMB;
1460                         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1461                         spin_unlock_irqrestore(&s->lock, flags);
1462                 }
1463                 if (file->f_mode & FMODE_WRITE) {
1464                         stop_dac2(s);
1465                         s->dma_dac2.ready = 0;
1466                         spin_lock_irqsave(&s->lock, flags);
1467                         if (val)
1468                                 s->sctrl |= SCTRL_P2SMB;
1469                         else
1470                                 s->sctrl &= ~SCTRL_P2SMB;
1471                         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1472                         spin_unlock_irqrestore(&s->lock, flags);
1473                 }
1474                 return 0;
1475
1476         case SNDCTL_DSP_CHANNELS:
1477                 if (get_user(val, p))
1478                         return -EFAULT;
1479                 if (val != 0) {
1480                         if (file->f_mode & FMODE_READ) {
1481                                 stop_adc(s);
1482                                 s->dma_adc.ready = 0;
1483                                 spin_lock_irqsave(&s->lock, flags);
1484                                 if (val >= 2)
1485                                         s->sctrl |= SCTRL_R1SMB;
1486                                 else
1487                                         s->sctrl &= ~SCTRL_R1SMB;
1488                                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1489                                 spin_unlock_irqrestore(&s->lock, flags);
1490                         }
1491                         if (file->f_mode & FMODE_WRITE) {
1492                                 stop_dac2(s);
1493                                 s->dma_dac2.ready = 0;
1494                                 spin_lock_irqsave(&s->lock, flags);
1495                                 if (val >= 2)
1496                                         s->sctrl |= SCTRL_P2SMB;
1497                                 else
1498                                         s->sctrl &= ~SCTRL_P2SMB;
1499                                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1500                                 spin_unlock_irqrestore(&s->lock, flags);
1501                         }
1502                 }
1503                 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, p);
1504
1505         case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1506                 return put_user(AFMT_S16_LE|AFMT_U8, p);
1507
1508         case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1509                 if (get_user(val, p))
1510                         return -EFAULT;
1511                 if (val != AFMT_QUERY) {
1512                         if (file->f_mode & FMODE_READ) {
1513                                 stop_adc(s);
1514                                 s->dma_adc.ready = 0;
1515                                 spin_lock_irqsave(&s->lock, flags);
1516                                 if (val == AFMT_S16_LE)
1517                                         s->sctrl |= SCTRL_R1SEB;
1518                                 else
1519                                         s->sctrl &= ~SCTRL_R1SEB;
1520                                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1521                                 spin_unlock_irqrestore(&s->lock, flags);
1522                         }
1523                         if (file->f_mode & FMODE_WRITE) {
1524                                 stop_dac2(s);
1525                                 s->dma_dac2.ready = 0;
1526                                 spin_lock_irqsave(&s->lock, flags);
1527                                 if (val == AFMT_S16_LE)
1528                                         s->sctrl |= SCTRL_P2SEB;
1529                                 else
1530                                         s->sctrl &= ~SCTRL_P2SEB;
1531                                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1532                                 spin_unlock_irqrestore(&s->lock, flags);
1533                         }
1534                 }
1535                 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1536                                 AFMT_S16_LE : AFMT_U8, p);
1537
1538         case SNDCTL_DSP_POST:
1539                 return 0;
1540
1541         case SNDCTL_DSP_GETTRIGGER:
1542                 val = 0;
1543                 if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN)
1544                         val |= PCM_ENABLE_INPUT;
1545                 if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN)
1546                         val |= PCM_ENABLE_OUTPUT;
1547                 return put_user(val, p);
1548
1549         case SNDCTL_DSP_SETTRIGGER:
1550                 if (get_user(val, p))
1551                         return -EFAULT;
1552                 if (file->f_mode & FMODE_READ) {
1553                         if (val & PCM_ENABLE_INPUT) {
1554                                 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1555                                         return ret;
1556                                 s->dma_adc.enabled = 1;
1557                                 start_adc(s);
1558                         } else {
1559                                 s->dma_adc.enabled = 0;
1560                                 stop_adc(s);
1561                         }
1562                 }
1563                 if (file->f_mode & FMODE_WRITE) {
1564                         if (val & PCM_ENABLE_OUTPUT) {
1565                                 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1566                                         return ret;
1567                                 s->dma_dac2.enabled = 1;
1568                                 start_dac2(s);
1569                         } else {
1570                                 s->dma_dac2.enabled = 0;
1571                                 stop_dac2(s);
1572                         }
1573                 }
1574                 return 0;
1575
1576         case SNDCTL_DSP_GETOSPACE:
1577                 if (!(file->f_mode & FMODE_WRITE))
1578                         return -EINVAL;
1579                 if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
1580                         return val;
1581                 spin_lock_irqsave(&s->lock, flags);
1582                 es1370_update_ptr(s);
1583                 abinfo.fragsize = s->dma_dac2.fragsize;
1584                 count = s->dma_dac2.count;
1585                 if (count < 0)
1586                         count = 0;
1587                 abinfo.bytes = s->dma_dac2.dmasize - count;
1588                 abinfo.fragstotal = s->dma_dac2.numfrag;
1589                 abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift;
1590                 spin_unlock_irqrestore(&s->lock, flags);
1591                 return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1592
1593         case SNDCTL_DSP_GETISPACE:
1594                 if (!(file->f_mode & FMODE_READ))
1595                         return -EINVAL;
1596                 if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0)
1597                         return val;
1598                 spin_lock_irqsave(&s->lock, flags);
1599                 es1370_update_ptr(s);
1600                 abinfo.fragsize = s->dma_adc.fragsize;
1601                 count = s->dma_adc.count;
1602                 if (count < 0)
1603                         count = 0;
1604                 abinfo.bytes = count;
1605                 abinfo.fragstotal = s->dma_adc.numfrag;
1606                 abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
1607                 spin_unlock_irqrestore(&s->lock, flags);
1608                 return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1609
1610         case SNDCTL_DSP_NONBLOCK:
1611                 file->f_flags |= O_NONBLOCK;
1612                 return 0;
1613
1614         case SNDCTL_DSP_GETODELAY:
1615                 if (!(file->f_mode & FMODE_WRITE))
1616                         return -EINVAL;
1617                 if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
1618                         return val;
1619                 spin_lock_irqsave(&s->lock, flags);
1620                 es1370_update_ptr(s);
1621                 count = s->dma_dac2.count;
1622                 spin_unlock_irqrestore(&s->lock, flags);
1623                 if (count < 0)
1624                         count = 0;
1625                 return put_user(count, p);
1626
1627         case SNDCTL_DSP_GETIPTR:
1628                 if (!(file->f_mode & FMODE_READ))
1629                         return -EINVAL;
1630                 if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0)
1631                         return val;
1632                 spin_lock_irqsave(&s->lock, flags);
1633                 es1370_update_ptr(s);
1634                 cinfo.bytes = s->dma_adc.total_bytes;
1635                 count = s->dma_adc.count;
1636                 if (count < 0)
1637                         count = 0;
1638                 cinfo.blocks = count >> s->dma_adc.fragshift;
1639                 cinfo.ptr = s->dma_adc.hwptr;
1640                 if (s->dma_adc.mapped)
1641                         s->dma_adc.count &= s->dma_adc.fragsize-1;
1642                 spin_unlock_irqrestore(&s->lock, flags);
1643                 if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
1644                         return -EFAULT;
1645                 return 0;
1646
1647         case SNDCTL_DSP_GETOPTR:
1648                 if (!(file->f_mode & FMODE_WRITE))
1649                         return -EINVAL;
1650                 if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
1651                         return val;
1652                 spin_lock_irqsave(&s->lock, flags);
1653                 es1370_update_ptr(s);
1654                 cinfo.bytes = s->dma_dac2.total_bytes;
1655                 count = s->dma_dac2.count;
1656                 if (count < 0)
1657                         count = 0;
1658                 cinfo.blocks = count >> s->dma_dac2.fragshift;
1659                 cinfo.ptr = s->dma_dac2.hwptr;
1660                 if (s->dma_dac2.mapped)
1661                         s->dma_dac2.count &= s->dma_dac2.fragsize-1;
1662                 spin_unlock_irqrestore(&s->lock, flags);
1663                 if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
1664                         return -EFAULT;
1665                 return 0;
1666
1667         case SNDCTL_DSP_GETBLKSIZE:
1668                 if (file->f_mode & FMODE_WRITE) {
1669                         if ((val = prog_dmabuf_dac2(s)))
1670                                 return val;
1671                         return put_user(s->dma_dac2.fragsize, p);
1672                 }
1673                 if ((val = prog_dmabuf_adc(s)))
1674                         return val;
1675                 return put_user(s->dma_adc.fragsize, p);
1676
1677         case SNDCTL_DSP_SETFRAGMENT:
1678                 if (get_user(val, p))
1679                         return -EFAULT;
1680                 if (file->f_mode & FMODE_READ) {
1681                         s->dma_adc.ossfragshift = val & 0xffff;
1682                         s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
1683                         if (s->dma_adc.ossfragshift < 4)
1684                                 s->dma_adc.ossfragshift = 4;
1685                         if (s->dma_adc.ossfragshift > 15)
1686                                 s->dma_adc.ossfragshift = 15;
1687                         if (s->dma_adc.ossmaxfrags < 4)
1688                                 s->dma_adc.ossmaxfrags = 4;
1689                 }
1690                 if (file->f_mode & FMODE_WRITE) {
1691                         s->dma_dac2.ossfragshift = val & 0xffff;
1692                         s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff;
1693                         if (s->dma_dac2.ossfragshift < 4)
1694                                 s->dma_dac2.ossfragshift = 4;
1695                         if (s->dma_dac2.ossfragshift > 15)
1696                                 s->dma_dac2.ossfragshift = 15;
1697                         if (s->dma_dac2.ossmaxfrags < 4)
1698                                 s->dma_dac2.ossmaxfrags = 4;
1699                 }
1700                 return 0;
1701
1702         case SNDCTL_DSP_SUBDIVIDE:
1703                 if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
1704                     (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision))
1705                         return -EINVAL;
1706                 if (get_user(val, p))
1707                         return -EFAULT;
1708                 if (val != 1 && val != 2 && val != 4)
1709                         return -EINVAL;
1710                 if (file->f_mode & FMODE_READ)
1711                         s->dma_adc.subdivision = val;
1712                 if (file->f_mode & FMODE_WRITE)
1713                         s->dma_dac2.subdivision = val;
1714                 return 0;
1715
1716         case SOUND_PCM_READ_RATE:
1717                 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), p);
1718
1719         case SOUND_PCM_READ_CHANNELS:
1720                 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ?
1721                                 2 : 1, p);
1722
1723         case SOUND_PCM_READ_BITS:
1724                 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1725                                 16 : 8, p);
1726
1727         case SOUND_PCM_WRITE_FILTER:
1728         case SNDCTL_DSP_SETSYNCRO:
1729         case SOUND_PCM_READ_FILTER:
1730                 return -EINVAL;
1731
1732         }
1733         return mixer_ioctl(s, cmd, arg);
1734 }
1735
1736 static int es1370_open(struct inode *inode, struct file *file)
1737 {
1738         unsigned int minor = iminor(inode);
1739         DECLARE_WAITQUEUE(wait, current);
1740         unsigned long flags;
1741         struct list_head *list;
1742         struct es1370_state *s;
1743
1744         for (list = devs.next; ; list = list->next) {
1745                 if (list == &devs)
1746                         return -ENODEV;
1747                 s = list_entry(list, struct es1370_state, devs);
1748                 if (!((s->dev_audio ^ minor) & ~0xf))
1749                         break;
1750         }
1751         VALIDATE_STATE(s);
1752         file->private_data = s;
1753         /* wait for device to become free */
1754         down(&s->open_sem);
1755         while (s->open_mode & file->f_mode) {
1756                 if (file->f_flags & O_NONBLOCK) {
1757                         up(&s->open_sem);
1758                         return -EBUSY;
1759                 }
1760                 add_wait_queue(&s->open_wait, &wait);
1761                 __set_current_state(TASK_INTERRUPTIBLE);
1762                 up(&s->open_sem);
1763                 schedule();
1764                 remove_wait_queue(&s->open_wait, &wait);
1765                 set_current_state(TASK_RUNNING);
1766                 if (signal_pending(current))
1767                         return -ERESTARTSYS;
1768                 down(&s->open_sem);
1769         }
1770         spin_lock_irqsave(&s->lock, flags);
1771         if (!(s->open_mode & (FMODE_READ|FMODE_WRITE)))
1772                 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV);
1773         if (file->f_mode & FMODE_READ) {
1774                 s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
1775                 s->dma_adc.enabled = 1;
1776                 s->sctrl &= ~SCTRL_R1FMT;
1777                 if ((minor & 0xf) == SND_DEV_DSP16)
1778                         s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_R1FMT;
1779                 else
1780                         s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_R1FMT;
1781         }
1782         if (file->f_mode & FMODE_WRITE) {
1783                 s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0;
1784                 s->dma_dac2.enabled = 1;
1785                 s->sctrl &= ~SCTRL_P2FMT;
1786                 if ((minor & 0xf) == SND_DEV_DSP16)
1787                         s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P2FMT;
1788                 else
1789                         s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P2FMT;
1790         }
1791         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1792         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1793         spin_unlock_irqrestore(&s->lock, flags);
1794         s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
1795         up(&s->open_sem);
1796         init_MUTEX(&s->sem);
1797         return nonseekable_open(inode, file);
1798 }
1799
1800 static int es1370_release(struct inode *inode, struct file *file)
1801 {
1802         struct es1370_state *s = (struct es1370_state *)file->private_data;
1803
1804         VALIDATE_STATE(s);
1805         lock_kernel();
1806         if (file->f_mode & FMODE_WRITE)
1807                 drain_dac2(s, file->f_flags & O_NONBLOCK);
1808         down(&s->open_sem);
1809         if (file->f_mode & FMODE_WRITE) {
1810                 stop_dac2(s);
1811                 synchronize_irq(s->irq);
1812                 dealloc_dmabuf(s, &s->dma_dac2);
1813         }
1814         if (file->f_mode & FMODE_READ) {
1815                 stop_adc(s);
1816                 dealloc_dmabuf(s, &s->dma_adc);
1817         }
1818         s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
1819         wake_up(&s->open_wait);
1820         up(&s->open_sem);
1821         unlock_kernel();
1822         return 0;
1823 }
1824
1825 static /*const*/ struct file_operations es1370_audio_fops = {
1826         .owner          = THIS_MODULE,
1827         .llseek         = no_llseek,
1828         .read           = es1370_read,
1829         .write          = es1370_write,
1830         .poll           = es1370_poll,
1831         .ioctl          = es1370_ioctl,
1832         .mmap           = es1370_mmap,
1833         .open           = es1370_open,
1834         .release        = es1370_release,
1835 };
1836
1837 /* --------------------------------------------------------------------- */
1838
1839 static ssize_t es1370_write_dac(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
1840 {
1841         struct es1370_state *s = (struct es1370_state *)file->private_data;
1842         DECLARE_WAITQUEUE(wait, current);
1843         ssize_t ret = 0;
1844         unsigned long flags;
1845         unsigned swptr;
1846         int cnt;
1847
1848         VALIDATE_STATE(s);
1849         if (s->dma_dac1.mapped)
1850                 return -ENXIO;
1851         if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1852                 return ret;
1853         if (!access_ok(VERIFY_READ, buffer, count))
1854                 return -EFAULT;
1855         add_wait_queue(&s->dma_dac1.wait, &wait);
1856         while (count > 0) {
1857                 spin_lock_irqsave(&s->lock, flags);
1858                 if (s->dma_dac1.count < 0) {
1859                         s->dma_dac1.count = 0;
1860                         s->dma_dac1.swptr = s->dma_dac1.hwptr;
1861                 }
1862                 swptr = s->dma_dac1.swptr;
1863                 cnt = s->dma_dac1.dmasize-swptr;
1864                 if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize)
1865                         cnt = s->dma_dac1.dmasize - s->dma_dac1.count;
1866                 if (cnt <= 0)
1867                         __set_current_state(TASK_INTERRUPTIBLE);
1868                 spin_unlock_irqrestore(&s->lock, flags);
1869                 if (cnt > count)
1870                         cnt = count;
1871                 if (cnt <= 0) {
1872                         if (s->dma_dac1.enabled)
1873                                 start_dac1(s);
1874                         if (file->f_flags & O_NONBLOCK) {
1875                                 if (!ret)
1876                                         ret = -EAGAIN;
1877                                 break;
1878                         }
1879                         schedule();
1880                         if (signal_pending(current)) {
1881                                 if (!ret)
1882                                         ret = -ERESTARTSYS;
1883                                 break;
1884                         }
1885                         continue;
1886                 }
1887                 if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt)) {
1888                         if (!ret)
1889                                 ret = -EFAULT;
1890                         break;
1891                 }
1892                 swptr = (swptr + cnt) % s->dma_dac1.dmasize;
1893                 spin_lock_irqsave(&s->lock, flags);
1894                 s->dma_dac1.swptr = swptr;
1895                 s->dma_dac1.count += cnt;
1896                 s->dma_dac1.endcleared = 0;
1897                 spin_unlock_irqrestore(&s->lock, flags);
1898                 count -= cnt;
1899                 buffer += cnt;
1900                 ret += cnt;
1901                 if (s->dma_dac1.enabled)
1902                         start_dac1(s);
1903         }
1904         remove_wait_queue(&s->dma_dac1.wait, &wait);
1905         set_current_state(TASK_RUNNING);
1906         return ret;
1907 }
1908
1909 /* No kernel lock - we have our own spinlock */
1910 static unsigned int es1370_poll_dac(struct file *file, struct poll_table_struct *wait)
1911 {
1912         struct es1370_state *s = (struct es1370_state *)file->private_data;
1913         unsigned long flags;
1914         unsigned int mask = 0;
1915
1916         VALIDATE_STATE(s);
1917         if (!s->dma_dac1.ready && prog_dmabuf_dac1(s))
1918                 return 0;
1919         poll_wait(file, &s->dma_dac1.wait, wait);
1920         spin_lock_irqsave(&s->lock, flags);
1921         es1370_update_ptr(s);
1922         if (s->dma_dac1.mapped) {
1923                 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
1924                         mask |= POLLOUT | POLLWRNORM;
1925         } else {
1926                 if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize)
1927                         mask |= POLLOUT | POLLWRNORM;
1928         }
1929         spin_unlock_irqrestore(&s->lock, flags);
1930         return mask;
1931 }
1932
1933 static int es1370_mmap_dac(struct file *file, struct vm_area_struct *vma)
1934 {
1935         struct es1370_state *s = (struct es1370_state *)file->private_data;
1936         int ret;
1937         unsigned long size;
1938
1939         VALIDATE_STATE(s);
1940         if (!(vma->vm_flags & VM_WRITE))
1941                 return -EINVAL;
1942         lock_kernel();
1943         if ((ret = prog_dmabuf_dac1(s)) != 0)
1944                 goto out;
1945         ret = -EINVAL;
1946         if (vma->vm_pgoff != 0)
1947                 goto out;
1948         size = vma->vm_end - vma->vm_start;
1949         if (size > (PAGE_SIZE << s->dma_dac1.buforder))
1950                 goto out;
1951         ret = -EAGAIN;
1952         if (remap_pfn_range(vma, vma->vm_start,
1953                         virt_to_phys(s->dma_dac1.rawbuf) >> PAGE_SHIFT,
1954                         size, vma->vm_page_prot))
1955                 goto out;
1956         s->dma_dac1.mapped = 1;
1957         ret = 0;
1958 out:
1959         unlock_kernel();
1960         return ret;
1961 }
1962
1963 static int es1370_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1964 {
1965         struct es1370_state *s = (struct es1370_state *)file->private_data;
1966         unsigned long flags;
1967         audio_buf_info abinfo;
1968         count_info cinfo;
1969         int count;
1970         unsigned ctrl;
1971         int val, ret;
1972         int __user *p = (int __user *)arg;
1973
1974         VALIDATE_STATE(s);
1975         switch (cmd) {
1976         case OSS_GETVERSION:
1977                 return put_user(SOUND_VERSION, p);
1978
1979         case SNDCTL_DSP_SYNC:
1980                 return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/);
1981
1982         case SNDCTL_DSP_SETDUPLEX:
1983                 return -EINVAL;
1984
1985         case SNDCTL_DSP_GETCAPS:
1986                 return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
1987
1988         case SNDCTL_DSP_RESET:
1989                 stop_dac1(s);
1990                 synchronize_irq(s->irq);
1991                 s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0;
1992                 return 0;
1993
1994         case SNDCTL_DSP_SPEED:
1995                 if (get_user(val, p))
1996                         return -EFAULT;
1997                 if (val >= 0) {
1998                         stop_dac1(s);
1999                         s->dma_dac1.ready = 0;
2000                         for (ctrl = 0; ctrl <= 2; ctrl++)
2001                                 if (val < (dac1_samplerate[ctrl] + dac1_samplerate[ctrl+1]) / 2)
2002                                         break;
2003                         spin_lock_irqsave(&s->lock, flags);
2004                         s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (ctrl << CTRL_SH_WTSRSEL);
2005                         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2006                         spin_unlock_irqrestore(&s->lock, flags);
2007                 }
2008                 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], p);
2009
2010         case SNDCTL_DSP_STEREO:
2011                 if (get_user(val, p))
2012                         return -EFAULT;
2013                 stop_dac1(s);
2014                 s->dma_dac1.ready = 0;
2015                 spin_lock_irqsave(&s->lock, flags);
2016                 if (val)
2017                         s->sctrl |= SCTRL_P1SMB;
2018                 else
2019                         s->sctrl &= ~SCTRL_P1SMB;
2020                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2021                 spin_unlock_irqrestore(&s->lock, flags);
2022                 return 0;
2023
2024         case SNDCTL_DSP_CHANNELS:
2025                 if (get_user(val, p))
2026                         return -EFAULT;
2027                 if (val != 0) {
2028                         if (s->dma_dac1.mapped)
2029                                 return -EINVAL;
2030                         stop_dac1(s);
2031                         s->dma_dac1.ready = 0;
2032                         spin_lock_irqsave(&s->lock, flags);
2033                         if (val >= 2)
2034                                 s->sctrl |= SCTRL_P1SMB;
2035                         else
2036                                 s->sctrl &= ~SCTRL_P1SMB;
2037                         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2038                         spin_unlock_irqrestore(&s->lock, flags);
2039                 }
2040                 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p);
2041
2042         case SNDCTL_DSP_GETFMTS: /* Returns a mask */
2043                 return put_user(AFMT_S16_LE|AFMT_U8, p);
2044
2045         case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
2046                 if (get_user(val, p))
2047                         return -EFAULT;
2048                 if (val != AFMT_QUERY) {
2049                         stop_dac1(s);
2050                         s->dma_dac1.ready = 0;
2051                         spin_lock_irqsave(&s->lock, flags);
2052                         if (val == AFMT_S16_LE)
2053                                 s->sctrl |= SCTRL_P1SEB;
2054                         else
2055                                 s->sctrl &= ~SCTRL_P1SEB;
2056                         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2057                         spin_unlock_irqrestore(&s->lock, flags);
2058                 }
2059                 return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, p);
2060
2061         case SNDCTL_DSP_POST:
2062                 return 0;
2063
2064         case SNDCTL_DSP_GETTRIGGER:
2065                 return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, p);
2066
2067         case SNDCTL_DSP_SETTRIGGER:
2068                 if (get_user(val, p))
2069                         return -EFAULT;
2070                 if (val & PCM_ENABLE_OUTPUT) {
2071                         if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
2072                                 return ret;
2073                         s->dma_dac1.enabled = 1;
2074                         start_dac1(s);
2075                 } else {
2076                         s->dma_dac1.enabled = 0;
2077                         stop_dac1(s);
2078                 }
2079                 return 0;
2080
2081         case SNDCTL_DSP_GETOSPACE:
2082                 if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
2083                         return val;
2084                 spin_lock_irqsave(&s->lock, flags);
2085                 es1370_update_ptr(s);
2086                 abinfo.fragsize = s->dma_dac1.fragsize;
2087                 count = s->dma_dac1.count;
2088                 if (count < 0)
2089                         count = 0;
2090                 abinfo.bytes = s->dma_dac1.dmasize - count;
2091                 abinfo.fragstotal = s->dma_dac1.numfrag;
2092                 abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift;
2093                 spin_unlock_irqrestore(&s->lock, flags);
2094                 return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
2095
2096         case SNDCTL_DSP_NONBLOCK:
2097                 file->f_flags |= O_NONBLOCK;
2098                 return 0;
2099
2100         case SNDCTL_DSP_GETODELAY:
2101                 if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
2102                         return val;
2103                 spin_lock_irqsave(&s->lock, flags);
2104                 es1370_update_ptr(s);
2105                 count = s->dma_dac1.count;
2106                 spin_unlock_irqrestore(&s->lock, flags);
2107                 if (count < 0)
2108                         count = 0;
2109                 return put_user(count, p);
2110
2111         case SNDCTL_DSP_GETOPTR:
2112                 if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
2113                         return val;
2114                 spin_lock_irqsave(&s->lock, flags);
2115                 es1370_update_ptr(s);
2116                 cinfo.bytes = s->dma_dac1.total_bytes;
2117                 count = s->dma_dac1.count;
2118                 if (count < 0)
2119                         count = 0;
2120                 cinfo.blocks = count >> s->dma_dac1.fragshift;
2121                 cinfo.ptr = s->dma_dac1.hwptr;
2122                 if (s->dma_dac1.mapped)
2123                         s->dma_dac1.count &= s->dma_dac1.fragsize-1;
2124                 spin_unlock_irqrestore(&s->lock, flags);
2125                 if (copy_to_user((void __user *)arg, &cinfo, sizeof(cinfo)))
2126                         return -EFAULT;
2127                 return 0;
2128
2129         case SNDCTL_DSP_GETBLKSIZE:
2130                 if ((val = prog_dmabuf_dac1(s)))
2131                         return val;
2132                 return put_user(s->dma_dac1.fragsize, p);
2133
2134         case SNDCTL_DSP_SETFRAGMENT:
2135                 if (get_user(val, p))
2136                         return -EFAULT;
2137                 s->dma_dac1.ossfragshift = val & 0xffff;
2138                 s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff;
2139                 if (s->dma_dac1.ossfragshift < 4)
2140                         s->dma_dac1.ossfragshift = 4;
2141                 if (s->dma_dac1.ossfragshift > 15)
2142                         s->dma_dac1.ossfragshift = 15;
2143                 if (s->dma_dac1.ossmaxfrags < 4)
2144                         s->dma_dac1.ossmaxfrags = 4;
2145                 return 0;
2146
2147         case SNDCTL_DSP_SUBDIVIDE:
2148                 if (s->dma_dac1.subdivision)
2149                         return -EINVAL;
2150                 if (get_user(val, p))
2151                         return -EFAULT;
2152                 if (val != 1 && val != 2 && val != 4)
2153                         return -EINVAL;
2154                 s->dma_dac1.subdivision = val;
2155                 return 0;
2156
2157         case SOUND_PCM_READ_RATE:
2158                 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], p);
2159
2160         case SOUND_PCM_READ_CHANNELS:
2161                 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p);
2162
2163         case SOUND_PCM_READ_BITS:
2164                 return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, p);
2165
2166         case SOUND_PCM_WRITE_FILTER:
2167         case SNDCTL_DSP_SETSYNCRO:
2168         case SOUND_PCM_READ_FILTER:
2169                 return -EINVAL;
2170
2171         }
2172         return mixer_ioctl(s, cmd, arg);
2173 }
2174
2175 static int es1370_open_dac(struct inode *inode, struct file *file)
2176 {
2177         unsigned int minor = iminor(inode);
2178         DECLARE_WAITQUEUE(wait, current);
2179         unsigned long flags;
2180         struct list_head *list;
2181         struct es1370_state *s;
2182
2183         for (list = devs.next; ; list = list->next) {
2184                 if (list == &devs)
2185                         return -ENODEV;
2186                 s = list_entry(list, struct es1370_state, devs);
2187                 if (!((s->dev_dac ^ minor) & ~0xf))
2188                         break;
2189         }
2190         VALIDATE_STATE(s);
2191         /* we allow opening with O_RDWR, most programs do it although they will only write */
2192 #if 0
2193         if (file->f_mode & FMODE_READ)
2194                 return -EPERM;
2195 #endif
2196         if (!(file->f_mode & FMODE_WRITE))
2197                 return -EINVAL;
2198         file->private_data = s;
2199         /* wait for device to become free */
2200         down(&s->open_sem);
2201         while (s->open_mode & FMODE_DAC) {
2202                 if (file->f_flags & O_NONBLOCK) {
2203                         up(&s->open_sem);
2204                         return -EBUSY;
2205                 }
2206                 add_wait_queue(&s->open_wait, &wait);
2207                 __set_current_state(TASK_INTERRUPTIBLE);
2208                 up(&s->open_sem);
2209                 schedule();
2210                 remove_wait_queue(&s->open_wait, &wait);
2211                 set_current_state(TASK_RUNNING);
2212                 if (signal_pending(current))
2213                         return -ERESTARTSYS;
2214                 down(&s->open_sem);
2215         }
2216         s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
2217         s->dma_dac1.enabled = 1;
2218         spin_lock_irqsave(&s->lock, flags);
2219         s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (1 << CTRL_SH_WTSRSEL);
2220         s->sctrl &= ~SCTRL_P1FMT;
2221         if ((minor & 0xf) == SND_DEV_DSP16)
2222                 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P1FMT;
2223         else
2224                 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P1FMT;
2225         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2226         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2227         spin_unlock_irqrestore(&s->lock, flags);
2228         s->open_mode |= FMODE_DAC;
2229         up(&s->open_sem);
2230         return nonseekable_open(inode, file);
2231 }
2232
2233 static int es1370_release_dac(struct inode *inode, struct file *file)
2234 {
2235         struct es1370_state *s = (struct es1370_state *)file->private_data;
2236
2237         VALIDATE_STATE(s);
2238         lock_kernel();
2239         drain_dac1(s, file->f_flags & O_NONBLOCK);
2240         down(&s->open_sem);
2241         stop_dac1(s);
2242         dealloc_dmabuf(s, &s->dma_dac1);
2243         s->open_mode &= ~FMODE_DAC;
2244         wake_up(&s->open_wait);
2245         up(&s->open_sem);
2246         unlock_kernel();
2247         return 0;
2248 }
2249
2250 static /*const*/ struct file_operations es1370_dac_fops = {
2251         .owner          = THIS_MODULE,
2252         .llseek         = no_llseek,
2253         .write          = es1370_write_dac,
2254         .poll           = es1370_poll_dac,
2255         .ioctl          = es1370_ioctl_dac,
2256         .mmap           = es1370_mmap_dac,
2257         .open           = es1370_open_dac,
2258         .release        = es1370_release_dac,
2259 };
2260
2261 /* --------------------------------------------------------------------- */
2262
2263 static ssize_t es1370_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
2264 {
2265         struct es1370_state *s = (struct es1370_state *)file->private_data;
2266         DECLARE_WAITQUEUE(wait, current);
2267         ssize_t ret;
2268         unsigned long flags;
2269         unsigned ptr;
2270         int cnt;
2271
2272         VALIDATE_STATE(s);
2273         if (!access_ok(VERIFY_WRITE, buffer, count))
2274                 return -EFAULT;
2275         if (count == 0)
2276                 return 0;
2277         ret = 0;
2278         add_wait_queue(&s->midi.iwait, &wait);
2279         while (count > 0) {
2280                 spin_lock_irqsave(&s->lock, flags);
2281                 ptr = s->midi.ird;
2282                 cnt = MIDIINBUF - ptr;
2283                 if (s->midi.icnt < cnt)
2284                         cnt = s->midi.icnt;
2285                 if (cnt <= 0)
2286                         __set_current_state(TASK_INTERRUPTIBLE);
2287                 spin_unlock_irqrestore(&s->lock, flags);
2288                 if (cnt > count)
2289                         cnt = count;
2290                 if (cnt <= 0) {
2291                         if (file->f_flags & O_NONBLOCK) {
2292                                 if (!ret)
2293                                         ret = -EAGAIN;
2294                                 break;
2295                         }
2296                         schedule();
2297                         if (signal_pending(current)) {
2298                                 if (!ret)
2299                                         ret = -ERESTARTSYS;
2300                                 break;
2301                         }
2302                         continue;
2303                 }
2304                 if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt)) {
2305                         if (!ret)
2306                                 ret = -EFAULT;
2307                         break;
2308                 }
2309                 ptr = (ptr + cnt) % MIDIINBUF;
2310                 spin_lock_irqsave(&s->lock, flags);
2311                 s->midi.ird = ptr;
2312                 s->midi.icnt -= cnt;
2313                 spin_unlock_irqrestore(&s->lock, flags);
2314                 count -= cnt;
2315                 buffer += cnt;
2316                 ret += cnt;
2317                 break;
2318         }
2319         __set_current_state(TASK_RUNNING);
2320         remove_wait_queue(&s->midi.iwait, &wait);
2321         return ret;
2322 }
2323
2324 static ssize_t es1370_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
2325 {
2326         struct es1370_state *s = (struct es1370_state *)file->private_data;
2327         DECLARE_WAITQUEUE(wait, current);
2328         ssize_t ret;
2329         unsigned long flags;
2330         unsigned ptr;
2331         int cnt;
2332
2333         VALIDATE_STATE(s);
2334         if (!access_ok(VERIFY_READ, buffer, count))
2335                 return -EFAULT;
2336         if (count == 0)
2337                 return 0;
2338         ret = 0;
2339         add_wait_queue(&s->midi.owait, &wait);
2340         while (count > 0) {
2341                 spin_lock_irqsave(&s->lock, flags);
2342                 ptr = s->midi.owr;
2343                 cnt = MIDIOUTBUF - ptr;
2344                 if (s->midi.ocnt + cnt > MIDIOUTBUF)
2345                         cnt = MIDIOUTBUF - s->midi.ocnt;
2346                 if (cnt <= 0) {
2347                         __set_current_state(TASK_INTERRUPTIBLE);
2348                         es1370_handle_midi(s);
2349                 }
2350                 spin_unlock_irqrestore(&s->lock, flags);
2351                 if (cnt > count)
2352                         cnt = count;
2353                 if (cnt <= 0) {
2354                         if (file->f_flags & O_NONBLOCK) {
2355                                 if (!ret)
2356                                         ret = -EAGAIN;
2357                                 break;
2358                         }
2359                         schedule();
2360                         if (signal_pending(current)) {
2361                                 if (!ret)
2362                                         ret = -ERESTARTSYS;
2363                                 break;
2364                         }
2365                         continue;
2366                 }
2367                 if (copy_from_user(s->midi.obuf + ptr, buffer, cnt)) {
2368                         if (!ret)
2369                                 ret = -EFAULT;
2370                         break;
2371                 }
2372                 ptr = (ptr + cnt) % MIDIOUTBUF;
2373                 spin_lock_irqsave(&s->lock, flags);
2374                 s->midi.owr = ptr;
2375                 s->midi.ocnt += cnt;
2376                 spin_unlock_irqrestore(&s->lock, flags);
2377                 count -= cnt;
2378                 buffer += cnt;
2379                 ret += cnt;
2380                 spin_lock_irqsave(&s->lock, flags);
2381                 es1370_handle_midi(s);
2382                 spin_unlock_irqrestore(&s->lock, flags);
2383         }
2384         __set_current_state(TASK_RUNNING);
2385         remove_wait_queue(&s->midi.owait, &wait);
2386         return ret;
2387 }
2388
2389 /* No kernel lock - we have our own spinlock */
2390 static unsigned int es1370_midi_poll(struct file *file, struct poll_table_struct *wait)
2391 {
2392         struct es1370_state *s = (struct es1370_state *)file->private_data;
2393         unsigned long flags;
2394         unsigned int mask = 0;
2395
2396         VALIDATE_STATE(s);
2397         if (file->f_mode & FMODE_WRITE)
2398                 poll_wait(file, &s->midi.owait, wait);
2399         if (file->f_mode & FMODE_READ)
2400                 poll_wait(file, &s->midi.iwait, wait);
2401         spin_lock_irqsave(&s->lock, flags);
2402         if (file->f_mode & FMODE_READ) {
2403                 if (s->midi.icnt > 0)
2404                         mask |= POLLIN | POLLRDNORM;
2405         }
2406         if (file->f_mode & FMODE_WRITE) {
2407                 if (s->midi.ocnt < MIDIOUTBUF)
2408                         mask |= POLLOUT | POLLWRNORM;
2409         }
2410         spin_unlock_irqrestore(&s->lock, flags);
2411         return mask;
2412 }
2413
2414 static int es1370_midi_open(struct inode *inode, struct file *file)
2415 {
2416         unsigned int minor = iminor(inode);
2417         DECLARE_WAITQUEUE(wait, current);
2418         unsigned long flags;
2419         struct list_head *list;
2420         struct es1370_state *s;
2421
2422         for (list = devs.next; ; list = list->next) {
2423                 if (list == &devs)
2424                         return -ENODEV;
2425                 s = list_entry(list, struct es1370_state, devs);
2426                 if (s->dev_midi == minor)
2427                         break;
2428         }
2429         VALIDATE_STATE(s);
2430         file->private_data = s;
2431         /* wait for device to become free */
2432         down(&s->open_sem);
2433         while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
2434                 if (file->f_flags & O_NONBLOCK) {
2435                         up(&s->open_sem);
2436                         return -EBUSY;
2437                 }
2438                 add_wait_queue(&s->open_wait, &wait);
2439                 __set_current_state(TASK_INTERRUPTIBLE);
2440                 up(&s->open_sem);
2441                 schedule();
2442                 remove_wait_queue(&s->open_wait, &wait);
2443                 set_current_state(TASK_RUNNING);
2444                 if (signal_pending(current))
2445                         return -ERESTARTSYS;
2446                 down(&s->open_sem);
2447         }
2448         spin_lock_irqsave(&s->lock, flags);
2449         if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2450                 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2451                 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2452                 outb(UCTRL_CNTRL_SWR, s->io+ES1370_REG_UART_CONTROL);
2453                 outb(0, s->io+ES1370_REG_UART_CONTROL);
2454                 outb(0, s->io+ES1370_REG_UART_TEST);
2455         }
2456         if (file->f_mode & FMODE_READ) {
2457                 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2458         }
2459         if (file->f_mode & FMODE_WRITE) {
2460                 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2461         }
2462         s->ctrl |= CTRL_UART_EN;
2463         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2464         es1370_handle_midi(s);
2465         spin_unlock_irqrestore(&s->lock, flags);
2466         s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
2467         up(&s->open_sem);
2468         return nonseekable_open(inode, file);
2469 }
2470
2471 static int es1370_midi_release(struct inode *inode, struct file *file)
2472 {
2473         struct es1370_state *s = (struct es1370_state *)file->private_data;
2474         DECLARE_WAITQUEUE(wait, current);
2475         unsigned long flags;
2476         unsigned count, tmo;
2477
2478         VALIDATE_STATE(s);
2479
2480         lock_kernel();
2481         if (file->f_mode & FMODE_WRITE) {
2482                 add_wait_queue(&s->midi.owait, &wait);
2483                 for (;;) {
2484                         __set_current_state(TASK_INTERRUPTIBLE);
2485                         spin_lock_irqsave(&s->lock, flags);
2486                         count = s->midi.ocnt;
2487                         spin_unlock_irqrestore(&s->lock, flags);
2488                         if (count <= 0)
2489                                 break;
2490                         if (signal_pending(current))
2491                                 break;
2492                         if (file->f_flags & O_NONBLOCK)
2493                                 break;
2494                         tmo = (count * HZ) / 3100;
2495                         if (!schedule_timeout(tmo ? : 1) && tmo)
2496                                 DBG(printk(KERN_DEBUG "es1370: midi timed out??\n");)
2497                 }
2498                 remove_wait_queue(&s->midi.owait, &wait);
2499                 set_current_state(TASK_RUNNING);
2500         }
2501         down(&s->open_sem);
2502         s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
2503         spin_lock_irqsave(&s->lock, flags);
2504         if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2505                 s->ctrl &= ~CTRL_UART_EN;
2506                 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2507         }
2508         spin_unlock_irqrestore(&s->lock, flags);
2509         wake_up(&s->open_wait);
2510         up(&s->open_sem);
2511         unlock_kernel();
2512         return 0;
2513 }
2514
2515 static /*const*/ struct file_operations es1370_midi_fops = {
2516         .owner          = THIS_MODULE,
2517         .llseek         = no_llseek,
2518         .read           = es1370_midi_read,
2519         .write          = es1370_midi_write,
2520         .poll           = es1370_midi_poll,
2521         .open           = es1370_midi_open,
2522         .release        = es1370_midi_release,
2523 };
2524
2525 /* --------------------------------------------------------------------- */
2526
2527 /* maximum number of devices; only used for command line params */
2528 #define NR_DEVICE 5
2529
2530 static int lineout[NR_DEVICE];
2531 static int micbias[NR_DEVICE];
2532
2533 static unsigned int devindex;
2534
2535 module_param_array(lineout, bool, NULL, 0);
2536 MODULE_PARM_DESC(lineout, "if 1 the LINE input is converted to LINE out");
2537 module_param_array(micbias, bool, NULL, 0);
2538 MODULE_PARM_DESC(micbias, "sets the +5V bias for an electret microphone");
2539
2540 MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
2541 MODULE_DESCRIPTION("ES1370 AudioPCI Driver");
2542 MODULE_LICENSE("GPL");
2543
2544
2545 /* --------------------------------------------------------------------- */
2546
2547 static struct initvol {
2548         int mixch;
2549         int vol;
2550 } initvol[] __devinitdata = {
2551         { SOUND_MIXER_WRITE_VOLUME, 0x4040 },
2552         { SOUND_MIXER_WRITE_PCM, 0x4040 },
2553         { SOUND_MIXER_WRITE_SYNTH, 0x4040 },
2554         { SOUND_MIXER_WRITE_CD, 0x4040 },
2555         { SOUND_MIXER_WRITE_LINE, 0x4040 },
2556         { SOUND_MIXER_WRITE_LINE1, 0x4040 },
2557         { SOUND_MIXER_WRITE_LINE2, 0x4040 },
2558         { SOUND_MIXER_WRITE_LINE3, 0x4040 },
2559         { SOUND_MIXER_WRITE_MIC, 0x4040 },
2560         { SOUND_MIXER_WRITE_OGAIN, 0x4040 }
2561 };
2562
2563 #ifdef SUPPORT_JOYSTICK
2564
2565 static int __devinit es1370_register_gameport(struct es1370_state *s)
2566 {
2567         struct gameport *gp;
2568
2569         if (!request_region(0x200, JOY_EXTENT, "es1370")) {
2570                 printk(KERN_ERR "es1370: joystick io port 0x200 in use\n");
2571                 return -EBUSY;
2572         }
2573
2574         s->gameport = gp = gameport_allocate_port();
2575         if (!gp) {
2576                 printk(KERN_ERR "es1370: can not allocate memory for gameport\n");
2577                 release_region(0x200, JOY_EXTENT);
2578                 return -ENOMEM;
2579         }
2580
2581         gameport_set_name(gp, "ESS1370");
2582         gameport_set_phys(gp, "pci%s/gameport0", pci_name(s->dev));
2583         gp->dev.parent = &s->dev->dev;
2584         gp->io = 0x200;
2585
2586         s->ctrl |= CTRL_JYSTK_EN;
2587         outl(s->ctrl, s->io + ES1370_REG_CONTROL);
2588
2589         gameport_register_port(gp);
2590
2591         return 0;
2592 }
2593
2594 static inline void es1370_unregister_gameport(struct es1370_state *s)
2595 {
2596         if (s->gameport) {
2597                 int gpio = s->gameport->io;
2598                 gameport_unregister_port(s->gameport);
2599                 release_region(gpio, JOY_EXTENT);
2600
2601         }
2602 }
2603
2604 #else
2605 static inline int es1370_register_gameport(struct es1370_state *s) { return -ENOSYS; }
2606 static inline void es1370_unregister_gameport(struct es1370_state *s) { }
2607 #endif /* SUPPORT_JOYSTICK */
2608
2609 static int __devinit es1370_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid)
2610 {
2611         struct es1370_state *s;
2612         mm_segment_t fs;
2613         int i, val, ret;
2614
2615         if ((ret=pci_enable_device(pcidev)))
2616                 return ret;
2617
2618         if ( !(pci_resource_flags(pcidev, 0) & IORESOURCE_IO) ||
2619              !pci_resource_start(pcidev, 0)
2620         )
2621                 return -ENODEV;
2622         if (pcidev->irq == 0)
2623                 return -ENODEV;
2624         i = pci_set_dma_mask(pcidev, 0xffffffff);
2625         if (i) {
2626                 printk(KERN_WARNING "es1370: architecture does not support 32bit PCI busmaster DMA\n");
2627                 return i;
2628         }
2629         if (!(s = kmalloc(sizeof(struct es1370_state), GFP_KERNEL))) {
2630                 printk(KERN_WARNING "es1370: out of memory\n");
2631                 return -ENOMEM;
2632         }
2633         memset(s, 0, sizeof(struct es1370_state));
2634         init_waitqueue_head(&s->dma_adc.wait);
2635         init_waitqueue_head(&s->dma_dac1.wait);
2636         init_waitqueue_head(&s->dma_dac2.wait);
2637         init_waitqueue_head(&s->open_wait);
2638         init_waitqueue_head(&s->midi.iwait);
2639         init_waitqueue_head(&s->midi.owait);
2640         init_MUTEX(&s->open_sem);
2641         spin_lock_init(&s->lock);
2642         s->magic = ES1370_MAGIC;
2643         s->dev = pcidev;
2644         s->io = pci_resource_start(pcidev, 0);
2645         s->irq = pcidev->irq;
2646         if (!request_region(s->io, ES1370_EXTENT, "es1370")) {
2647                 printk(KERN_ERR "es1370: io ports %#lx-%#lx in use\n", s->io, s->io+ES1370_EXTENT-1);
2648                 ret = -EBUSY;
2649                 goto err_region;
2650         }
2651         if ((ret=request_irq(s->irq, es1370_interrupt, SA_SHIRQ, "es1370",s))) {
2652                 printk(KERN_ERR "es1370: irq %u in use\n", s->irq);
2653                 goto err_irq;
2654         }
2655
2656         /* initialize codec registers */
2657         /* note: setting CTRL_SERR_DIS is reported to break
2658          * mic bias setting (by Kim.Berts@fisub.mail.abb.com) */
2659         s->ctrl = CTRL_CDC_EN | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV) | (1 << CTRL_SH_WTSRSEL);
2660         if (lineout[devindex])
2661                 s->ctrl |= CTRL_XCTL0;
2662         if (micbias[devindex])
2663                 s->ctrl |= CTRL_XCTL1;
2664         s->sctrl = 0;
2665         printk(KERN_INFO "es1370: adapter at io %#lx irq %u, line %s, mic impedance %s\n",
2666                s->io, s->irq, (s->ctrl & CTRL_XCTL0) ? "out" : "in",
2667                (s->ctrl & CTRL_XCTL1) ? "1" : "0");
2668         /* register devices */
2669         if ((s->dev_audio = register_sound_dsp(&es1370_audio_fops, -1)) < 0) {
2670                 ret = s->dev_audio;
2671                 goto err_dev1;
2672         }
2673         if ((s->dev_mixer = register_sound_mixer(&es1370_mixer_fops, -1)) < 0) {
2674                 ret = s->dev_mixer;
2675                 goto err_dev2;
2676         }
2677         if ((s->dev_dac = register_sound_dsp(&es1370_dac_fops, -1)) < 0) {
2678                 ret = s->dev_dac;
2679                 goto err_dev3;
2680         }
2681         if ((s->dev_midi = register_sound_midi(&es1370_midi_fops, -1)) < 0) {
2682                 ret = s->dev_midi;
2683                 goto err_dev4;
2684         }
2685         /* initialize the chips */
2686         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2687         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2688         /* point phantom write channel to "bugbuf" */
2689         s->bugbuf_cpu = pci_alloc_consistent(pcidev,16,&s->bugbuf_dma);
2690         if (!s->bugbuf_cpu) {
2691                 ret = -ENOMEM;
2692                 goto err_dev5;
2693         }
2694         outl((ES1370_REG_PHANTOM_FRAMEADR >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
2695         outl(s->bugbuf_dma, s->io+(ES1370_REG_PHANTOM_FRAMEADR & 0xff));
2696         outl(0, s->io+(ES1370_REG_PHANTOM_FRAMECNT & 0xff));
2697         pci_set_master(pcidev);  /* enable bus mastering */
2698         wrcodec(s, 0x16, 3); /* no RST, PD */
2699         wrcodec(s, 0x17, 0); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off the LRCLK2 PLL; program DAC_SYNC=0!!  */
2700         wrcodec(s, 0x18, 0); /* recording source is mixer */
2701         wrcodec(s, 0x19, s->mix.micpreamp = 1); /* turn on MIC preamp */
2702         s->mix.imix = 1;
2703         fs = get_fs();
2704         set_fs(KERNEL_DS);
2705         val = SOUND_MASK_LINE|SOUND_MASK_SYNTH|SOUND_MASK_CD;
2706         mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
2707         for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
2708                 val = initvol[i].vol;
2709                 mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
2710         }
2711         set_fs(fs);
2712
2713         es1370_register_gameport(s);
2714
2715         /* store it in the driver field */
2716         pci_set_drvdata(pcidev, s);
2717         /* put it into driver list */
2718         list_add_tail(&s->devs, &devs);
2719         /* increment devindex */
2720         if (devindex < NR_DEVICE-1)
2721                 devindex++;
2722         return 0;
2723
2724  err_dev5:
2725         unregister_sound_midi(s->dev_midi);
2726  err_dev4:
2727         unregister_sound_dsp(s->dev_dac);
2728  err_dev3:
2729         unregister_sound_mixer(s->dev_mixer);
2730  err_dev2:
2731         unregister_sound_dsp(s->dev_audio);
2732  err_dev1:
2733         printk(KERN_ERR "es1370: cannot register misc device\n");
2734         free_irq(s->irq, s);
2735  err_irq:
2736         release_region(s->io, ES1370_EXTENT);
2737  err_region:
2738         kfree(s);
2739         return ret;
2740 }
2741
2742 static void __devexit es1370_remove(struct pci_dev *dev)
2743 {
2744         struct es1370_state *s = pci_get_drvdata(dev);
2745
2746         if (!s)
2747                 return;
2748         list_del(&s->devs);
2749         outl(CTRL_SERR_DIS | (1 << CTRL_SH_WTSRSEL), s->io+ES1370_REG_CONTROL); /* switch everything off */
2750         outl(0, s->io+ES1370_REG_SERIAL_CONTROL); /* clear serial interrupts */
2751         synchronize_irq(s->irq);
2752         free_irq(s->irq, s);
2753         es1370_unregister_gameport(s);
2754         release_region(s->io, ES1370_EXTENT);
2755         unregister_sound_dsp(s->dev_audio);
2756         unregister_sound_mixer(s->dev_mixer);
2757         unregister_sound_dsp(s->dev_dac);
2758         unregister_sound_midi(s->dev_midi);
2759         pci_free_consistent(dev, 16, s->bugbuf_cpu, s->bugbuf_dma);
2760         kfree(s);
2761         pci_set_drvdata(dev, NULL);
2762 }
2763
2764 static struct pci_device_id id_table[] = {
2765         { PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1370, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
2766         { 0, }
2767 };
2768
2769 MODULE_DEVICE_TABLE(pci, id_table);
2770
2771 static struct pci_driver es1370_driver = {
2772         .name           = "es1370",
2773         .id_table       = id_table,
2774         .probe          = es1370_probe,
2775         .remove         = __devexit_p(es1370_remove),
2776 };
2777
2778 static int __init init_es1370(void)
2779 {
2780         printk(KERN_INFO "es1370: version v0.38 time " __TIME__ " " __DATE__ "\n");
2781         return pci_module_init(&es1370_driver);
2782 }
2783
2784 static void __exit cleanup_es1370(void)
2785 {
2786         printk(KERN_INFO "es1370: unloading\n");
2787         pci_unregister_driver(&es1370_driver);
2788 }
2789
2790 module_init(init_es1370);
2791 module_exit(cleanup_es1370);
2792
2793 /* --------------------------------------------------------------------- */
2794
2795 #ifndef MODULE
2796
2797 /* format is: es1370=lineout[,micbias]] */
2798
2799 static int __init es1370_setup(char *str)
2800 {
2801         static unsigned __initdata nr_dev = 0;
2802
2803         if (nr_dev >= NR_DEVICE)
2804                 return 0;
2805
2806         (void)
2807         ((get_option(&str,&lineout [nr_dev]) == 2)
2808          && get_option(&str,&micbias [nr_dev])
2809         );
2810
2811         nr_dev++;
2812         return 1;
2813 }
2814
2815 __setup("es1370=", es1370_setup);
2816
2817 #endif /* MODULE */