sound/oss/es1370.c

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