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