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         int __user *p = (int __user *)arg;
 849
 850         VALIDATE_STATE(s);
 851         if (cmd == SOUND_MIXER_PRIVATE1) {
 852                 /* enable/disable/query mixer preamp */
 853                 if (get_user(val, p))
 854                         return -EFAULT;
 855                 if (val != -1) {
 856                         s->mix.micpreamp = !!val;
 857                         wrcodec(s, 0x19, s->mix.micpreamp);
 858                 }
 859                 return put_user(s->mix.micpreamp, p);
 860         }
 861         if (cmd == SOUND_MIXER_PRIVATE2) {
 862                 /* enable/disable/query use of linein as second lineout */
 863                 if (get_user(val, p))
 864                         return -EFAULT;
 865                 if (val != -1) {
 866                         spin_lock_irqsave(&s->lock, flags);
 867                         if (val)
 868                                 s->ctrl |= CTRL_XCTL0;
 869                         else
 870                                 s->ctrl &= ~CTRL_XCTL0;
 871                         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 872                         spin_unlock_irqrestore(&s->lock, flags);
 873                 }
 874                 return put_user((s->ctrl & CTRL_XCTL0) ? 1 : 0, p);
 875         }
 876         if (cmd == SOUND_MIXER_PRIVATE3) {
 877                 /* enable/disable/query microphone impedance setting */
 878                 if (get_user(val, p))
 879                         return -EFAULT;
 880                 if (val != -1) {
 881                         spin_lock_irqsave(&s->lock, flags);
 882                         if (val)
 883                                 s->ctrl |= CTRL_XCTL1;
 884                         else
 885                                 s->ctrl &= ~CTRL_XCTL1;
 886                         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
 887                         spin_unlock_irqrestore(&s->lock, flags);
 888                 }
 889                 return put_user((s->ctrl & CTRL_XCTL1) ? 1 : 0, p);
 890         }
 891         if (cmd == SOUND_MIXER_INFO) {
 892                 mixer_info info;
 893                 strncpy(info.id, "ES1370", sizeof(info.id));
 894                 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
 895                 info.modify_counter = s->mix.modcnt;
 896                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
 897                         return -EFAULT;
 898                 return 0;
 899         }
 900         if (cmd == SOUND_OLD_MIXER_INFO) {
 901                 _old_mixer_info info;
 902                 strncpy(info.id, "ES1370", sizeof(info.id));
 903                 strncpy(info.name, "Ensoniq ES1370", sizeof(info.name));
 904                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
 905                         return -EFAULT;
 906                 return 0;
 907         }
 908         if (cmd == OSS_GETVERSION)
 909                 return put_user(SOUND_VERSION, p);
 910         if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int))
 911                 return -EINVAL;
 912         if (_SIOC_DIR(cmd) == _SIOC_READ) {
 913                 switch (_IOC_NR(cmd)) {
 914                 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
 915                         return put_user(s->mix.recsrc, p);
 916
 917                 case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
 918                         val = SOUND_MASK_IMIX;
 919                         for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
 920                                 if (mixtable[i].avail)
 921                                         val |= 1 << i;
 922                         return put_user(val, p);
 923
 924                 case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
 925                         for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
 926                                 if (mixtable[i].recmask)
 927                                         val |= 1 << i;
 928                         return put_user(val, p);
 929
 930                 case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
 931                         for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
 932                                 if (mixtable[i].stereo)
 933                                         val |= 1 << i;
 934                         return put_user(val, p);
 935
 936                 case SOUND_MIXER_CAPS:
 937                         return put_user(0, p);
 938
 939                 case SOUND_MIXER_IMIX:
 940                         return put_user(s->mix.imix, p);
 941
 942                 default:
 943                         i = _IOC_NR(cmd);
 944                         if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
 945                                 return -EINVAL;
 946                         return put_user(s->mix.vol[mixtable[i].volidx], p);
 947                 }
 948         }
 949         if (_SIOC_DIR(cmd) != (_SIOC_READ|_SIOC_WRITE))
 950                 return -EINVAL;
 951         s->mix.modcnt++;
 952         switch (_IOC_NR(cmd)) {
 953
 954         case SOUND_MIXER_IMIX:
 955                 if (get_user(s->mix.imix, p))
 956                         return -EFAULT;
 957                 set_recsrc(s, s->mix.recsrc);
 958                 return 0;
 959
 960         case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
 961                 if (get_user(val, p))
 962                         return -EFAULT;
 963                 set_recsrc(s, val);
 964                 return 0;
 965
 966         default:
 967                 i = _IOC_NR(cmd);
 968                 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].avail)
 969                         return -EINVAL;
 970                 if (get_user(val, p))
 971                         return -EFAULT;
 972                 l = val & 0xff;
 973                 if (l > 100)
 974                         l = 100;
 975                 if (mixtable[i].stereo) {
 976                         r = (val >> 8) & 0xff;
 977                         if (r > 100)
 978                                 r = 100;
 979                         if (l < 7) {
 980                                 rl = 0x80;
 981                                 l = 0;
 982                         } else {
 983                                 rl = 31 - ((l - 7) / 3);
 984                                 l = (31 - rl) * 3 + 7;
 985                         }
 986                         if (r < 7) {
 987                                 rr = 0x80;
 988                                 r = 0;
 989                         } else {
 990                                 rr =  31 - ((r - 7) / 3);
 991                                 r = (31 - rr) * 3 + 7;
 992                         }
 993                         wrcodec(s, mixtable[i].right, rr);
 994                 } else {
 995                         if (mixtable[i].left == 15) {
 996                                 if (l < 2) {
 997                                         rr = rl = 0x80;
 998                                         r = l = 0;
 999                                 } else {
1000                                         rl = 7 - ((l - 2) / 14);
1001                                         r = l = (7 - rl) * 14 + 2;
1002                                 }
1003                         } else {
1004                                 if (l < 7) {
1005                                         rl = 0x80;
1006                                         r = l = 0;
1007                                 } else {
1008                                         rl = 31 - ((l - 7) / 3);
1009                                         r = l = (31 - rl) * 3 + 7;
1010                                 }
1011                         }
1012                 }
1013                 wrcodec(s, mixtable[i].left, rl);
1014 #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
1015                 s->mix.vol[mixtable[i].volidx] = ((unsigned int)r << 8) | l;
1016 #else
1017                 s->mix.vol[mixtable[i].volidx] = val;
1018 #endif
1019                 return put_user(s->mix.vol[mixtable[i].volidx], p);
1020         }
1021 }
1022
1023 /* --------------------------------------------------------------------- */
1024
1025 static int es1370_open_mixdev(struct inode *inode, struct file *file)
1026 {
1027         unsigned int minor = iminor(inode);
1028         struct list_head *list;
1029         struct es1370_state *s;
1030
1031         for (list = devs.next; ; list = list->next) {
1032                 if (list == &devs)
1033                         return -ENODEV;
1034                 s = list_entry(list, struct es1370_state, devs);
1035                 if (s->dev_mixer == minor)
1036                         break;
1037         }
1038         VALIDATE_STATE(s);
1039         file->private_data = s;
1040         return 0;
1041 }
1042
1043 static int es1370_release_mixdev(struct inode *inode, struct file *file)
1044 {
1045         struct es1370_state *s = (struct es1370_state *)file->private_data;
1046
1047         VALIDATE_STATE(s);
1048         return 0;
1049 }
1050
1051 static int es1370_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1052 {
1053         return mixer_ioctl((struct es1370_state *)file->private_data, cmd, arg);
1054 }
1055
1056 static /*const*/ struct file_operations es1370_mixer_fops = {
1057         .owner          = THIS_MODULE,
1058         .llseek         = no_llseek,
1059         .ioctl          = es1370_ioctl_mixdev,
1060         .open           = es1370_open_mixdev,
1061         .release        = es1370_release_mixdev,
1062 };
1063
1064 /* --------------------------------------------------------------------- */
1065
1066 static int drain_dac1(struct es1370_state *s, int nonblock)
1067 {
1068         DECLARE_WAITQUEUE(wait, current);
1069         unsigned long flags;
1070         int count, tmo;
1071
1072         if (s->dma_dac1.mapped || !s->dma_dac1.ready)
1073                 return 0;
1074         add_wait_queue(&s->dma_dac1.wait, &wait);
1075         for (;;) {
1076                 __set_current_state(TASK_INTERRUPTIBLE);
1077                 spin_lock_irqsave(&s->lock, flags);
1078                 count = s->dma_dac1.count;
1079                 spin_unlock_irqrestore(&s->lock, flags);
1080                 if (count <= 0)
1081                         break;
1082                 if (signal_pending(current))
1083                         break;
1084                 if (nonblock) {
1085                         remove_wait_queue(&s->dma_dac1.wait, &wait);
1086                         set_current_state(TASK_RUNNING);
1087                         return -EBUSY;
1088                 }
1089                 tmo = 3 * HZ * (count + s->dma_dac1.fragsize) / 2
1090                         / dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL];
1091                 tmo >>= sample_shift[(s->sctrl & SCTRL_P1FMT) >> SCTRL_SH_P1FMT];
1092                 if (!schedule_timeout(tmo + 1))
1093                         DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1094         }
1095         remove_wait_queue(&s->dma_dac1.wait, &wait);
1096         set_current_state(TASK_RUNNING);
1097         if (signal_pending(current))
1098                 return -ERESTARTSYS;
1099         return 0;
1100 }
1101
1102 static int drain_dac2(struct es1370_state *s, int nonblock)
1103 {
1104         DECLARE_WAITQUEUE(wait, current);
1105         unsigned long flags;
1106         int count, tmo;
1107
1108         if (s->dma_dac2.mapped || !s->dma_dac2.ready)
1109                 return 0;
1110         add_wait_queue(&s->dma_dac2.wait, &wait);
1111         for (;;) {
1112                 __set_current_state(TASK_INTERRUPTIBLE);
1113                 spin_lock_irqsave(&s->lock, flags);
1114                 count = s->dma_dac2.count;
1115                 spin_unlock_irqrestore(&s->lock, flags);
1116                 if (count <= 0)
1117                         break;
1118                 if (signal_pending(current))
1119                         break;
1120                 if (nonblock) {
1121                         remove_wait_queue(&s->dma_dac2.wait, &wait);
1122                         set_current_state(TASK_RUNNING);
1123                         return -EBUSY;
1124                 }
1125                 tmo = 3 * HZ * (count + s->dma_dac2.fragsize) / 2
1126                         / DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV);
1127                 tmo >>= sample_shift[(s->sctrl & SCTRL_P2FMT) >> SCTRL_SH_P2FMT];
1128                 if (!schedule_timeout(tmo + 1))
1129                         DBG(printk(KERN_DEBUG "es1370: dma timed out??\n");)
1130         }
1131         remove_wait_queue(&s->dma_dac2.wait, &wait);
1132         set_current_state(TASK_RUNNING);
1133         if (signal_pending(current))
1134                 return -ERESTARTSYS;
1135         return 0;
1136 }
1137
1138 /* --------------------------------------------------------------------- */
1139
1140 static ssize_t es1370_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
1141 {
1142         struct es1370_state *s = (struct es1370_state *)file->private_data;
1143         DECLARE_WAITQUEUE(wait, current);
1144         ssize_t ret = 0;
1145         unsigned long flags;
1146         unsigned swptr;
1147         int cnt;
1148
1149         VALIDATE_STATE(s);
1150         if (ppos != &file->f_pos)
1151                 return -ESPIPE;
1152         if (s->dma_adc.mapped)
1153                 return -ENXIO;
1154         if (!access_ok(VERIFY_WRITE, buffer, count))
1155                 return -EFAULT;
1156         down(&s->sem);
1157         if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1158                 goto out;
1159
1160         add_wait_queue(&s->dma_adc.wait, &wait);
1161         while (count > 0) {
1162                 spin_lock_irqsave(&s->lock, flags);
1163                 swptr = s->dma_adc.swptr;
1164                 cnt = s->dma_adc.dmasize-swptr;
1165                 if (s->dma_adc.count < cnt)
1166                         cnt = s->dma_adc.count;
1167                 if (cnt <= 0)
1168                         __set_current_state(TASK_INTERRUPTIBLE);
1169                 spin_unlock_irqrestore(&s->lock, flags);
1170                 if (cnt > count)
1171                         cnt = count;
1172                 if (cnt <= 0) {
1173                         if (s->dma_adc.enabled)
1174                                 start_adc(s);
1175                         if (file->f_flags & O_NONBLOCK) {
1176                                 if (!ret)
1177                                         ret = -EAGAIN;
1178                                 goto out;
1179                         }
1180                         up(&s->sem);
1181                         schedule();
1182                         if (signal_pending(current)) {
1183                                 if (!ret)
1184                                         ret = -ERESTARTSYS;
1185                                 goto out;
1186                         }
1187                         down(&s->sem);
1188                         if (s->dma_adc.mapped)
1189                         {
1190                                 ret = -ENXIO;
1191                                 goto out;
1192                         }
1193                         continue;
1194                 }
1195                 if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
1196                         if (!ret)
1197                                 ret = -EFAULT;
1198                         goto out;
1199                 }
1200                 swptr = (swptr + cnt) % s->dma_adc.dmasize;
1201                 spin_lock_irqsave(&s->lock, flags);
1202                 s->dma_adc.swptr = swptr;
1203                 s->dma_adc.count -= cnt;
1204                 spin_unlock_irqrestore(&s->lock, flags);
1205                 count -= cnt;
1206                 buffer += cnt;
1207                 ret += cnt;
1208                 if (s->dma_adc.enabled)
1209                         start_adc(s);
1210         }
1211 out:
1212         up(&s->sem);
1213         remove_wait_queue(&s->dma_adc.wait, &wait);
1214         set_current_state(TASK_RUNNING);
1215         return ret;
1216 }
1217
1218 static ssize_t es1370_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
1219 {
1220         struct es1370_state *s = (struct es1370_state *)file->private_data;
1221         DECLARE_WAITQUEUE(wait, current);
1222         ssize_t ret = 0;
1223         unsigned long flags;
1224         unsigned swptr;
1225         int cnt;
1226
1227         VALIDATE_STATE(s);
1228         if (ppos != &file->f_pos)
1229                 return -ESPIPE;
1230         if (s->dma_dac2.mapped)
1231                 return -ENXIO;
1232         if (!access_ok(VERIFY_READ, buffer, count))
1233                 return -EFAULT;
1234         down(&s->sem);
1235         if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1236                 goto out;
1237         ret = 0;
1238         add_wait_queue(&s->dma_dac2.wait, &wait);
1239         while (count > 0) {
1240                 spin_lock_irqsave(&s->lock, flags);
1241                 if (s->dma_dac2.count < 0) {
1242                         s->dma_dac2.count = 0;
1243                         s->dma_dac2.swptr = s->dma_dac2.hwptr;
1244                 }
1245                 swptr = s->dma_dac2.swptr;
1246                 cnt = s->dma_dac2.dmasize-swptr;
1247                 if (s->dma_dac2.count + cnt > s->dma_dac2.dmasize)
1248                         cnt = s->dma_dac2.dmasize - s->dma_dac2.count;
1249                 if (cnt <= 0)
1250                         __set_current_state(TASK_INTERRUPTIBLE);
1251                 spin_unlock_irqrestore(&s->lock, flags);
1252                 if (cnt > count)
1253                         cnt = count;
1254                 if (cnt <= 0) {
1255                         if (s->dma_dac2.enabled)
1256                                 start_dac2(s);
1257                         if (file->f_flags & O_NONBLOCK) {
1258                                 if (!ret)
1259                                         ret = -EAGAIN;
1260                                 goto out;
1261                         }
1262                         up(&s->sem);
1263                         schedule();
1264                         if (signal_pending(current)) {
1265                                 if (!ret)
1266                                         ret = -ERESTARTSYS;
1267                                 goto out;
1268                         }
1269                         down(&s->sem);
1270                         if (s->dma_dac2.mapped)
1271                         {
1272                         ret = -ENXIO;
1273                         goto out;
1274                         }
1275                         continue;
1276                 }
1277                 if (copy_from_user(s->dma_dac2.rawbuf + swptr, buffer, cnt)) {
1278                         if (!ret)
1279                                 ret = -EFAULT;
1280                         goto out;
1281                 }
1282                 swptr = (swptr + cnt) % s->dma_dac2.dmasize;
1283                 spin_lock_irqsave(&s->lock, flags);
1284                 s->dma_dac2.swptr = swptr;
1285                 s->dma_dac2.count += cnt;
1286                 s->dma_dac2.endcleared = 0;
1287                 spin_unlock_irqrestore(&s->lock, flags);
1288                 count -= cnt;
1289                 buffer += cnt;
1290                 ret += cnt;
1291                 if (s->dma_dac2.enabled)
1292                         start_dac2(s);
1293         }
1294 out:
1295         up(&s->sem);
1296         remove_wait_queue(&s->dma_dac2.wait, &wait);
1297         set_current_state(TASK_RUNNING);
1298         return ret;
1299 }
1300
1301 /* No kernel lock - we have our own spinlock */
1302 static unsigned int es1370_poll(struct file *file, struct poll_table_struct *wait)
1303 {
1304         struct es1370_state *s = (struct es1370_state *)file->private_data;
1305         unsigned long flags;
1306         unsigned int mask = 0;
1307
1308         VALIDATE_STATE(s);
1309         if (file->f_mode & FMODE_WRITE) {
1310                 if (!s->dma_dac2.ready && prog_dmabuf_dac2(s))
1311                         return 0;
1312                 poll_wait(file, &s->dma_dac2.wait, wait);
1313         }
1314         if (file->f_mode & FMODE_READ) {
1315                 if (!s->dma_adc.ready && prog_dmabuf_adc(s))
1316                         return 0;
1317                 poll_wait(file, &s->dma_adc.wait, wait);
1318         }
1319         spin_lock_irqsave(&s->lock, flags);
1320         es1370_update_ptr(s);
1321         if (file->f_mode & FMODE_READ) {
1322                 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
1323                         mask |= POLLIN | POLLRDNORM;
1324         }
1325         if (file->f_mode & FMODE_WRITE) {
1326                 if (s->dma_dac2.mapped) {
1327                         if (s->dma_dac2.count >= (signed)s->dma_dac2.fragsize)
1328                                 mask |= POLLOUT | POLLWRNORM;
1329                 } else {
1330                         if ((signed)s->dma_dac2.dmasize >= s->dma_dac2.count + (signed)s->dma_dac2.fragsize)
1331                                 mask |= POLLOUT | POLLWRNORM;
1332                 }
1333         }
1334         spin_unlock_irqrestore(&s->lock, flags);
1335         return mask;
1336 }
1337
1338 static int es1370_mmap(struct file *file, struct vm_area_struct *vma)
1339 {
1340         struct es1370_state *s = (struct es1370_state *)file->private_data;
1341         struct dmabuf *db;
1342         int ret = 0;
1343         unsigned long size;
1344
1345         VALIDATE_STATE(s);
1346         lock_kernel();
1347         down(&s->sem);
1348         if (vma->vm_flags & VM_WRITE) {
1349                 if ((ret = prog_dmabuf_dac2(s)) != 0) {
1350                         goto out;
1351                 }
1352                 db = &s->dma_dac2;
1353         } else if (vma->vm_flags & VM_READ) {
1354                 if ((ret = prog_dmabuf_adc(s)) != 0) {
1355                         goto out;
1356                 }
1357                 db = &s->dma_adc;
1358         } else  {
1359                 ret = -EINVAL;
1360                 goto out;
1361         }
1362         if (vma->vm_pgoff != 0) {
1363                 ret = -EINVAL;
1364                 goto out;
1365         }
1366         size = vma->vm_end - vma->vm_start;
1367         if (size > (PAGE_SIZE << db->buforder)) {
1368                 ret = -EINVAL;
1369                 goto out;
1370         }
1371         if (remap_page_range(vma, vma->vm_start, virt_to_phys(db->rawbuf), size, vma->vm_page_prot)) {
1372                 ret = -EAGAIN;
1373                 goto out;
1374         }
1375         db->mapped = 1;
1376 out:
1377         up(&s->sem);
1378         unlock_kernel();
1379         return ret;
1380 }
1381
1382 static int es1370_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1383 {
1384         struct es1370_state *s = (struct es1370_state *)file->private_data;
1385         unsigned long flags;
1386         audio_buf_info abinfo;
1387         count_info cinfo;
1388         int count;
1389         int val, mapped, ret;
1390         void __user *argp = (void __user *)arg;
1391         int __user *p = argp;
1392
1393         VALIDATE_STATE(s);
1394         mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac2.mapped) ||
1395                 ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
1396         switch (cmd) {
1397         case OSS_GETVERSION:
1398                 return put_user(SOUND_VERSION, p);
1399
1400         case SNDCTL_DSP_SYNC:
1401                 if (file->f_mode & FMODE_WRITE)
1402                         return drain_dac2(s, 0/*file->f_flags & O_NONBLOCK*/);
1403                 return 0;
1404
1405         case SNDCTL_DSP_SETDUPLEX:
1406                 return 0;
1407
1408         case SNDCTL_DSP_GETCAPS:
1409                 return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
1410
1411         case SNDCTL_DSP_RESET:
1412                 if (file->f_mode & FMODE_WRITE) {
1413                         stop_dac2(s);
1414                         synchronize_irq(s->irq);
1415                         s->dma_dac2.swptr = s->dma_dac2.hwptr = s->dma_dac2.count = s->dma_dac2.total_bytes = 0;
1416                 }
1417                 if (file->f_mode & FMODE_READ) {
1418                         stop_adc(s);
1419                         synchronize_irq(s->irq);
1420                         s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
1421                 }
1422                 return 0;
1423
1424         case SNDCTL_DSP_SPEED:
1425                 if (get_user(val, p))
1426                         return -EFAULT;
1427                 if (val >= 0) {
1428                         if (s->open_mode & (~file->f_mode) & (FMODE_READ|FMODE_WRITE))
1429                                 return -EINVAL;
1430                         if (val < 4000)
1431                                 val = 4000;
1432                         if (val > 50000)
1433                                 val = 50000;
1434                         stop_adc(s);
1435                         stop_dac2(s);
1436                         s->dma_adc.ready = s->dma_dac2.ready = 0;
1437                         spin_lock_irqsave(&s->lock, flags);
1438                         s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(val) << CTRL_SH_PCLKDIV);
1439                         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1440                         spin_unlock_irqrestore(&s->lock, flags);
1441                 }
1442                 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), p);
1443
1444         case SNDCTL_DSP_STEREO:
1445                 if (get_user(val, p))
1446                         return -EFAULT;
1447                 if (file->f_mode & FMODE_READ) {
1448                         stop_adc(s);
1449                         s->dma_adc.ready = 0;
1450                         spin_lock_irqsave(&s->lock, flags);
1451                         if (val)
1452                                 s->sctrl |= SCTRL_R1SMB;
1453                         else
1454                                 s->sctrl &= ~SCTRL_R1SMB;
1455                         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1456                         spin_unlock_irqrestore(&s->lock, flags);
1457                 }
1458                 if (file->f_mode & FMODE_WRITE) {
1459                         stop_dac2(s);
1460                         s->dma_dac2.ready = 0;
1461                         spin_lock_irqsave(&s->lock, flags);
1462                         if (val)
1463                                 s->sctrl |= SCTRL_P2SMB;
1464                         else
1465                                 s->sctrl &= ~SCTRL_P2SMB;
1466                         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1467                         spin_unlock_irqrestore(&s->lock, flags);
1468                 }
1469                 return 0;
1470
1471         case SNDCTL_DSP_CHANNELS:
1472                 if (get_user(val, p))
1473                         return -EFAULT;
1474                 if (val != 0) {
1475                         if (file->f_mode & FMODE_READ) {
1476                                 stop_adc(s);
1477                                 s->dma_adc.ready = 0;
1478                                 spin_lock_irqsave(&s->lock, flags);
1479                                 if (val >= 2)
1480                                         s->sctrl |= SCTRL_R1SMB;
1481                                 else
1482                                         s->sctrl &= ~SCTRL_R1SMB;
1483                                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1484                                 spin_unlock_irqrestore(&s->lock, flags);
1485                         }
1486                         if (file->f_mode & FMODE_WRITE) {
1487                                 stop_dac2(s);
1488                                 s->dma_dac2.ready = 0;
1489                                 spin_lock_irqsave(&s->lock, flags);
1490                                 if (val >= 2)
1491                                         s->sctrl |= SCTRL_P2SMB;
1492                                 else
1493                                         s->sctrl &= ~SCTRL_P2SMB;
1494                                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1495                                 spin_unlock_irqrestore(&s->lock, flags);
1496                         }
1497                 }
1498                 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ? 2 : 1, p);
1499
1500         case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1501                 return put_user(AFMT_S16_LE|AFMT_U8, p);
1502
1503         case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1504                 if (get_user(val, p))
1505                         return -EFAULT;
1506                 if (val != AFMT_QUERY) {
1507                         if (file->f_mode & FMODE_READ) {
1508                                 stop_adc(s);
1509                                 s->dma_adc.ready = 0;
1510                                 spin_lock_irqsave(&s->lock, flags);
1511                                 if (val == AFMT_S16_LE)
1512                                         s->sctrl |= SCTRL_R1SEB;
1513                                 else
1514                                         s->sctrl &= ~SCTRL_R1SEB;
1515                                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1516                                 spin_unlock_irqrestore(&s->lock, flags);
1517                         }
1518                         if (file->f_mode & FMODE_WRITE) {
1519                                 stop_dac2(s);
1520                                 s->dma_dac2.ready = 0;
1521                                 spin_lock_irqsave(&s->lock, flags);
1522                                 if (val == AFMT_S16_LE)
1523                                         s->sctrl |= SCTRL_P2SEB;
1524                                 else
1525                                         s->sctrl &= ~SCTRL_P2SEB;
1526                                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1527                                 spin_unlock_irqrestore(&s->lock, flags);
1528                         }
1529                 }
1530                 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1531                                 AFMT_S16_LE : AFMT_U8, p);
1532
1533         case SNDCTL_DSP_POST:
1534                 return 0;
1535
1536         case SNDCTL_DSP_GETTRIGGER:
1537                 val = 0;
1538                 if (file->f_mode & FMODE_READ && s->ctrl & CTRL_ADC_EN)
1539                         val |= PCM_ENABLE_INPUT;
1540                 if (file->f_mode & FMODE_WRITE && s->ctrl & CTRL_DAC2_EN)
1541                         val |= PCM_ENABLE_OUTPUT;
1542                 return put_user(val, p);
1543
1544         case SNDCTL_DSP_SETTRIGGER:
1545                 if (get_user(val, p))
1546                         return -EFAULT;
1547                 if (file->f_mode & FMODE_READ) {
1548                         if (val & PCM_ENABLE_INPUT) {
1549                                 if (!s->dma_adc.ready && (ret = prog_dmabuf_adc(s)))
1550                                         return ret;
1551                                 s->dma_adc.enabled = 1;
1552                                 start_adc(s);
1553                         } else {
1554                                 s->dma_adc.enabled = 0;
1555                                 stop_adc(s);
1556                         }
1557                 }
1558                 if (file->f_mode & FMODE_WRITE) {
1559                         if (val & PCM_ENABLE_OUTPUT) {
1560                                 if (!s->dma_dac2.ready && (ret = prog_dmabuf_dac2(s)))
1561                                         return ret;
1562                                 s->dma_dac2.enabled = 1;
1563                                 start_dac2(s);
1564                         } else {
1565                                 s->dma_dac2.enabled = 0;
1566                                 stop_dac2(s);
1567                         }
1568                 }
1569                 return 0;
1570
1571         case SNDCTL_DSP_GETOSPACE:
1572                 if (!(file->f_mode & FMODE_WRITE))
1573                         return -EINVAL;
1574                 if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
1575                         return val;
1576                 spin_lock_irqsave(&s->lock, flags);
1577                 es1370_update_ptr(s);
1578                 abinfo.fragsize = s->dma_dac2.fragsize;
1579                 count = s->dma_dac2.count;
1580                 if (count < 0)
1581                         count = 0;
1582                 abinfo.bytes = s->dma_dac2.dmasize - count;
1583                 abinfo.fragstotal = s->dma_dac2.numfrag;
1584                 abinfo.fragments = abinfo.bytes >> s->dma_dac2.fragshift;
1585                 spin_unlock_irqrestore(&s->lock, flags);
1586                 return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1587
1588         case SNDCTL_DSP_GETISPACE:
1589                 if (!(file->f_mode & FMODE_READ))
1590                         return -EINVAL;
1591                 if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0)
1592                         return val;
1593                 spin_lock_irqsave(&s->lock, flags);
1594                 es1370_update_ptr(s);
1595                 abinfo.fragsize = s->dma_adc.fragsize;
1596                 count = s->dma_adc.count;
1597                 if (count < 0)
1598                         count = 0;
1599                 abinfo.bytes = count;
1600                 abinfo.fragstotal = s->dma_adc.numfrag;
1601                 abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
1602                 spin_unlock_irqrestore(&s->lock, flags);
1603                 return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1604
1605         case SNDCTL_DSP_NONBLOCK:
1606                 file->f_flags |= O_NONBLOCK;
1607                 return 0;
1608
1609         case SNDCTL_DSP_GETODELAY:
1610                 if (!(file->f_mode & FMODE_WRITE))
1611                         return -EINVAL;
1612                 if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
1613                         return val;
1614                 spin_lock_irqsave(&s->lock, flags);
1615                 es1370_update_ptr(s);
1616                 count = s->dma_dac2.count;
1617                 spin_unlock_irqrestore(&s->lock, flags);
1618                 if (count < 0)
1619                         count = 0;
1620                 return put_user(count, p);
1621
1622         case SNDCTL_DSP_GETIPTR:
1623                 if (!(file->f_mode & FMODE_READ))
1624                         return -EINVAL;
1625                 if (!s->dma_adc.ready && (val = prog_dmabuf_adc(s)) != 0)
1626                         return val;
1627                 spin_lock_irqsave(&s->lock, flags);
1628                 es1370_update_ptr(s);
1629                 cinfo.bytes = s->dma_adc.total_bytes;
1630                 count = s->dma_adc.count;
1631                 if (count < 0)
1632                         count = 0;
1633                 cinfo.blocks = count >> s->dma_adc.fragshift;
1634                 cinfo.ptr = s->dma_adc.hwptr;
1635                 if (s->dma_adc.mapped)
1636                         s->dma_adc.count &= s->dma_adc.fragsize-1;
1637                 spin_unlock_irqrestore(&s->lock, flags);
1638                 if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
1639                         return -EFAULT;
1640                 return 0;
1641
1642         case SNDCTL_DSP_GETOPTR:
1643                 if (!(file->f_mode & FMODE_WRITE))
1644                         return -EINVAL;
1645                 if (!s->dma_dac2.ready && (val = prog_dmabuf_dac2(s)) != 0)
1646                         return val;
1647                 spin_lock_irqsave(&s->lock, flags);
1648                 es1370_update_ptr(s);
1649                 cinfo.bytes = s->dma_dac2.total_bytes;
1650                 count = s->dma_dac2.count;
1651                 if (count < 0)
1652                         count = 0;
1653                 cinfo.blocks = count >> s->dma_dac2.fragshift;
1654                 cinfo.ptr = s->dma_dac2.hwptr;
1655                 if (s->dma_dac2.mapped)
1656                         s->dma_dac2.count &= s->dma_dac2.fragsize-1;
1657                 spin_unlock_irqrestore(&s->lock, flags);
1658                 if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
1659                         return -EFAULT;
1660                 return 0;
1661
1662         case SNDCTL_DSP_GETBLKSIZE:
1663                 if (file->f_mode & FMODE_WRITE) {
1664                         if ((val = prog_dmabuf_dac2(s)))
1665                                 return val;
1666                         return put_user(s->dma_dac2.fragsize, p);
1667                 }
1668                 if ((val = prog_dmabuf_adc(s)))
1669                         return val;
1670                 return put_user(s->dma_adc.fragsize, p);
1671
1672         case SNDCTL_DSP_SETFRAGMENT:
1673                 if (get_user(val, p))
1674                         return -EFAULT;
1675                 if (file->f_mode & FMODE_READ) {
1676                         s->dma_adc.ossfragshift = val & 0xffff;
1677                         s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
1678                         if (s->dma_adc.ossfragshift < 4)
1679                                 s->dma_adc.ossfragshift = 4;
1680                         if (s->dma_adc.ossfragshift > 15)
1681                                 s->dma_adc.ossfragshift = 15;
1682                         if (s->dma_adc.ossmaxfrags < 4)
1683                                 s->dma_adc.ossmaxfrags = 4;
1684                 }
1685                 if (file->f_mode & FMODE_WRITE) {
1686                         s->dma_dac2.ossfragshift = val & 0xffff;
1687                         s->dma_dac2.ossmaxfrags = (val >> 16) & 0xffff;
1688                         if (s->dma_dac2.ossfragshift < 4)
1689                                 s->dma_dac2.ossfragshift = 4;
1690                         if (s->dma_dac2.ossfragshift > 15)
1691                                 s->dma_dac2.ossfragshift = 15;
1692                         if (s->dma_dac2.ossmaxfrags < 4)
1693                                 s->dma_dac2.ossmaxfrags = 4;
1694                 }
1695                 return 0;
1696
1697         case SNDCTL_DSP_SUBDIVIDE:
1698                 if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
1699                     (file->f_mode & FMODE_WRITE && s->dma_dac2.subdivision))
1700                         return -EINVAL;
1701                 if (get_user(val, p))
1702                         return -EFAULT;
1703                 if (val != 1 && val != 2 && val != 4)
1704                         return -EINVAL;
1705                 if (file->f_mode & FMODE_READ)
1706                         s->dma_adc.subdivision = val;
1707                 if (file->f_mode & FMODE_WRITE)
1708                         s->dma_dac2.subdivision = val;
1709                 return 0;
1710
1711         case SOUND_PCM_READ_RATE:
1712                 return put_user(DAC2_DIVTOSR((s->ctrl & CTRL_PCLKDIV) >> CTRL_SH_PCLKDIV), p);
1713
1714         case SOUND_PCM_READ_CHANNELS:
1715                 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SMB : SCTRL_P2SMB)) ?
1716                                 2 : 1, p);
1717
1718         case SOUND_PCM_READ_BITS:
1719                 return put_user((s->sctrl & ((file->f_mode & FMODE_READ) ? SCTRL_R1SEB : SCTRL_P2SEB)) ?
1720                                 16 : 8, p);
1721
1722         case SOUND_PCM_WRITE_FILTER:
1723         case SNDCTL_DSP_SETSYNCRO:
1724         case SOUND_PCM_READ_FILTER:
1725                 return -EINVAL;
1726
1727         }
1728         return mixer_ioctl(s, cmd, arg);
1729 }
1730
1731 static int es1370_open(struct inode *inode, struct file *file)
1732 {
1733         unsigned int minor = iminor(inode);
1734         DECLARE_WAITQUEUE(wait, current);
1735         unsigned long flags;
1736         struct list_head *list;
1737         struct es1370_state *s;
1738
1739         for (list = devs.next; ; list = list->next) {
1740                 if (list == &devs)
1741                         return -ENODEV;
1742                 s = list_entry(list, struct es1370_state, devs);
1743                 if (!((s->dev_audio ^ minor) & ~0xf))
1744                         break;
1745         }
1746         VALIDATE_STATE(s);
1747         file->private_data = s;
1748         /* wait for device to become free */
1749         down(&s->open_sem);
1750         while (s->open_mode & file->f_mode) {
1751                 if (file->f_flags & O_NONBLOCK) {
1752                         up(&s->open_sem);
1753                         return -EBUSY;
1754                 }
1755                 add_wait_queue(&s->open_wait, &wait);
1756                 __set_current_state(TASK_INTERRUPTIBLE);
1757                 up(&s->open_sem);
1758                 schedule();
1759                 remove_wait_queue(&s->open_wait, &wait);
1760                 set_current_state(TASK_RUNNING);
1761                 if (signal_pending(current))
1762                         return -ERESTARTSYS;
1763                 down(&s->open_sem);
1764         }
1765         spin_lock_irqsave(&s->lock, flags);
1766         if (!(s->open_mode & (FMODE_READ|FMODE_WRITE)))
1767                 s->ctrl = (s->ctrl & ~CTRL_PCLKDIV) | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV);
1768         if (file->f_mode & FMODE_READ) {
1769                 s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
1770                 s->dma_adc.enabled = 1;
1771                 s->sctrl &= ~SCTRL_R1FMT;
1772                 if ((minor & 0xf) == SND_DEV_DSP16)
1773                         s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_R1FMT;
1774                 else
1775                         s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_R1FMT;
1776         }
1777         if (file->f_mode & FMODE_WRITE) {
1778                 s->dma_dac2.ossfragshift = s->dma_dac2.ossmaxfrags = s->dma_dac2.subdivision = 0;
1779                 s->dma_dac2.enabled = 1;
1780                 s->sctrl &= ~SCTRL_P2FMT;
1781                 if ((minor & 0xf) == SND_DEV_DSP16)
1782                         s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P2FMT;
1783                 else
1784                         s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P2FMT;
1785         }
1786         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
1787         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
1788         spin_unlock_irqrestore(&s->lock, flags);
1789         s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
1790         up(&s->open_sem);
1791         init_MUTEX(&s->sem);
1792         return 0;
1793 }
1794
1795 static int es1370_release(struct inode *inode, struct file *file)
1796 {
1797         struct es1370_state *s = (struct es1370_state *)file->private_data;
1798
1799         VALIDATE_STATE(s);
1800         lock_kernel();
1801         if (file->f_mode & FMODE_WRITE)
1802                 drain_dac2(s, file->f_flags & O_NONBLOCK);
1803         down(&s->open_sem);
1804         if (file->f_mode & FMODE_WRITE) {
1805                 stop_dac2(s);
1806                 synchronize_irq(s->irq);
1807                 dealloc_dmabuf(s, &s->dma_dac2);
1808         }
1809         if (file->f_mode & FMODE_READ) {
1810                 stop_adc(s);
1811                 dealloc_dmabuf(s, &s->dma_adc);
1812         }
1813         s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
1814         wake_up(&s->open_wait);
1815         up(&s->open_sem);
1816         unlock_kernel();
1817         return 0;
1818 }
1819
1820 static /*const*/ struct file_operations es1370_audio_fops = {
1821         .owner          = THIS_MODULE,
1822         .llseek         = no_llseek,
1823         .read           = es1370_read,
1824         .write          = es1370_write,
1825         .poll           = es1370_poll,
1826         .ioctl          = es1370_ioctl,
1827         .mmap           = es1370_mmap,
1828         .open           = es1370_open,
1829         .release        = es1370_release,
1830 };
1831
1832 /* --------------------------------------------------------------------- */
1833
1834 static ssize_t es1370_write_dac(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
1835 {
1836         struct es1370_state *s = (struct es1370_state *)file->private_data;
1837         DECLARE_WAITQUEUE(wait, current);
1838         ssize_t ret = 0;
1839         unsigned long flags;
1840         unsigned swptr;
1841         int cnt;
1842
1843         VALIDATE_STATE(s);
1844         if (ppos != &file->f_pos)
1845                 return -ESPIPE;
1846         if (s->dma_dac1.mapped)
1847                 return -ENXIO;
1848         if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
1849                 return ret;
1850         if (!access_ok(VERIFY_READ, buffer, count))
1851                 return -EFAULT;
1852         add_wait_queue(&s->dma_dac1.wait, &wait);
1853         while (count > 0) {
1854                 spin_lock_irqsave(&s->lock, flags);
1855                 if (s->dma_dac1.count < 0) {
1856                         s->dma_dac1.count = 0;
1857                         s->dma_dac1.swptr = s->dma_dac1.hwptr;
1858                 }
1859                 swptr = s->dma_dac1.swptr;
1860                 cnt = s->dma_dac1.dmasize-swptr;
1861                 if (s->dma_dac1.count + cnt > s->dma_dac1.dmasize)
1862                         cnt = s->dma_dac1.dmasize - s->dma_dac1.count;
1863                 if (cnt <= 0)
1864                         __set_current_state(TASK_INTERRUPTIBLE);
1865                 spin_unlock_irqrestore(&s->lock, flags);
1866                 if (cnt > count)
1867                         cnt = count;
1868                 if (cnt <= 0) {
1869                         if (s->dma_dac1.enabled)
1870                                 start_dac1(s);
1871                         if (file->f_flags & O_NONBLOCK) {
1872                                 if (!ret)
1873                                         ret = -EAGAIN;
1874                                 break;
1875                         }
1876                         schedule();
1877                         if (signal_pending(current)) {
1878                                 if (!ret)
1879                                         ret = -ERESTARTSYS;
1880                                 break;
1881                         }
1882                         continue;
1883                 }
1884                 if (copy_from_user(s->dma_dac1.rawbuf + swptr, buffer, cnt)) {
1885                         if (!ret)
1886                                 ret = -EFAULT;
1887                         break;
1888                 }
1889                 swptr = (swptr + cnt) % s->dma_dac1.dmasize;
1890                 spin_lock_irqsave(&s->lock, flags);
1891                 s->dma_dac1.swptr = swptr;
1892                 s->dma_dac1.count += cnt;
1893                 s->dma_dac1.endcleared = 0;
1894                 spin_unlock_irqrestore(&s->lock, flags);
1895                 count -= cnt;
1896                 buffer += cnt;
1897                 ret += cnt;
1898                 if (s->dma_dac1.enabled)
1899                         start_dac1(s);
1900         }
1901         remove_wait_queue(&s->dma_dac1.wait, &wait);
1902         set_current_state(TASK_RUNNING);
1903         return ret;
1904 }
1905
1906 /* No kernel lock - we have our own spinlock */
1907 static unsigned int es1370_poll_dac(struct file *file, struct poll_table_struct *wait)
1908 {
1909         struct es1370_state *s = (struct es1370_state *)file->private_data;
1910         unsigned long flags;
1911         unsigned int mask = 0;
1912
1913         VALIDATE_STATE(s);
1914         if (!s->dma_dac1.ready && prog_dmabuf_dac1(s))
1915                 return 0;
1916         poll_wait(file, &s->dma_dac1.wait, wait);
1917         spin_lock_irqsave(&s->lock, flags);
1918         es1370_update_ptr(s);
1919         if (s->dma_dac1.mapped) {
1920                 if (s->dma_dac1.count >= (signed)s->dma_dac1.fragsize)
1921                         mask |= POLLOUT | POLLWRNORM;
1922         } else {
1923                 if ((signed)s->dma_dac1.dmasize >= s->dma_dac1.count + (signed)s->dma_dac1.fragsize)
1924                         mask |= POLLOUT | POLLWRNORM;
1925         }
1926         spin_unlock_irqrestore(&s->lock, flags);
1927         return mask;
1928 }
1929
1930 static int es1370_mmap_dac(struct file *file, struct vm_area_struct *vma)
1931 {
1932         struct es1370_state *s = (struct es1370_state *)file->private_data;
1933         int ret;
1934         unsigned long size;
1935
1936         VALIDATE_STATE(s);
1937         if (!(vma->vm_flags & VM_WRITE))
1938                 return -EINVAL;
1939         lock_kernel();
1940         if ((ret = prog_dmabuf_dac1(s)) != 0)
1941                 goto out;
1942         ret = -EINVAL;
1943         if (vma->vm_pgoff != 0)
1944                 goto out;
1945         size = vma->vm_end - vma->vm_start;
1946         if (size > (PAGE_SIZE << s->dma_dac1.buforder))
1947                 goto out;
1948         ret = -EAGAIN;
1949         if (remap_page_range(vma, vma->vm_start, virt_to_phys(s->dma_dac1.rawbuf), size, vma->vm_page_prot))
1950                 goto out;
1951         s->dma_dac1.mapped = 1;
1952         ret = 0;
1953 out:
1954         unlock_kernel();
1955         return ret;
1956 }
1957
1958 static int es1370_ioctl_dac(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1959 {
1960         struct es1370_state *s = (struct es1370_state *)file->private_data;
1961         unsigned long flags;
1962         audio_buf_info abinfo;
1963         count_info cinfo;
1964         int count;
1965         unsigned ctrl;
1966         int val, ret;
1967         int __user *p = (int __user *)arg;
1968
1969         VALIDATE_STATE(s);
1970         switch (cmd) {
1971         case OSS_GETVERSION:
1972                 return put_user(SOUND_VERSION, p);
1973
1974         case SNDCTL_DSP_SYNC:
1975                 return drain_dac1(s, 0/*file->f_flags & O_NONBLOCK*/);
1976
1977         case SNDCTL_DSP_SETDUPLEX:
1978                 return -EINVAL;
1979
1980         case SNDCTL_DSP_GETCAPS:
1981                 return put_user(DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
1982
1983         case SNDCTL_DSP_RESET:
1984                 stop_dac1(s);
1985                 synchronize_irq(s->irq);
1986                 s->dma_dac1.swptr = s->dma_dac1.hwptr = s->dma_dac1.count = s->dma_dac1.total_bytes = 0;
1987                 return 0;
1988
1989         case SNDCTL_DSP_SPEED:
1990                 if (get_user(val, p))
1991                         return -EFAULT;
1992                 if (val >= 0) {
1993                         stop_dac1(s);
1994                         s->dma_dac1.ready = 0;
1995                         for (ctrl = 0; ctrl <= 2; ctrl++)
1996                                 if (val < (dac1_samplerate[ctrl] + dac1_samplerate[ctrl+1]) / 2)
1997                                         break;
1998                         spin_lock_irqsave(&s->lock, flags);
1999                         s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (ctrl << CTRL_SH_WTSRSEL);
2000                         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2001                         spin_unlock_irqrestore(&s->lock, flags);
2002                 }
2003                 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], p);
2004
2005         case SNDCTL_DSP_STEREO:
2006                 if (get_user(val, p))
2007                         return -EFAULT;
2008                 stop_dac1(s);
2009                 s->dma_dac1.ready = 0;
2010                 spin_lock_irqsave(&s->lock, flags);
2011                 if (val)
2012                         s->sctrl |= SCTRL_P1SMB;
2013                 else
2014                         s->sctrl &= ~SCTRL_P1SMB;
2015                 outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2016                 spin_unlock_irqrestore(&s->lock, flags);
2017                 return 0;
2018
2019         case SNDCTL_DSP_CHANNELS:
2020                 if (get_user(val, p))
2021                         return -EFAULT;
2022                 if (val != 0) {
2023                         if (s->dma_dac1.mapped)
2024                                 return -EINVAL;
2025                         stop_dac1(s);
2026                         s->dma_dac1.ready = 0;
2027                         spin_lock_irqsave(&s->lock, flags);
2028                         if (val >= 2)
2029                                 s->sctrl |= SCTRL_P1SMB;
2030                         else
2031                                 s->sctrl &= ~SCTRL_P1SMB;
2032                         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2033                         spin_unlock_irqrestore(&s->lock, flags);
2034                 }
2035                 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p);
2036
2037         case SNDCTL_DSP_GETFMTS: /* Returns a mask */
2038                 return put_user(AFMT_S16_LE|AFMT_U8, p);
2039
2040         case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
2041                 if (get_user(val, p))
2042                         return -EFAULT;
2043                 if (val != AFMT_QUERY) {
2044                         stop_dac1(s);
2045                         s->dma_dac1.ready = 0;
2046                         spin_lock_irqsave(&s->lock, flags);
2047                         if (val == AFMT_S16_LE)
2048                                 s->sctrl |= SCTRL_P1SEB;
2049                         else
2050                                 s->sctrl &= ~SCTRL_P1SEB;
2051                         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2052                         spin_unlock_irqrestore(&s->lock, flags);
2053                 }
2054                 return put_user((s->sctrl & SCTRL_P1SEB) ? AFMT_S16_LE : AFMT_U8, p);
2055
2056         case SNDCTL_DSP_POST:
2057                 return 0;
2058
2059         case SNDCTL_DSP_GETTRIGGER:
2060                 return put_user((s->ctrl & CTRL_DAC1_EN) ? PCM_ENABLE_OUTPUT : 0, p);
2061
2062         case SNDCTL_DSP_SETTRIGGER:
2063                 if (get_user(val, p))
2064                         return -EFAULT;
2065                 if (val & PCM_ENABLE_OUTPUT) {
2066                         if (!s->dma_dac1.ready && (ret = prog_dmabuf_dac1(s)))
2067                                 return ret;
2068                         s->dma_dac1.enabled = 1;
2069                         start_dac1(s);
2070                 } else {
2071                         s->dma_dac1.enabled = 0;
2072                         stop_dac1(s);
2073                 }
2074                 return 0;
2075
2076         case SNDCTL_DSP_GETOSPACE:
2077                 if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
2078                         return val;
2079                 spin_lock_irqsave(&s->lock, flags);
2080                 es1370_update_ptr(s);
2081                 abinfo.fragsize = s->dma_dac1.fragsize;
2082                 count = s->dma_dac1.count;
2083                 if (count < 0)
2084                         count = 0;
2085                 abinfo.bytes = s->dma_dac1.dmasize - count;
2086                 abinfo.fragstotal = s->dma_dac1.numfrag;
2087                 abinfo.fragments = abinfo.bytes >> s->dma_dac1.fragshift;
2088                 spin_unlock_irqrestore(&s->lock, flags);
2089                 return copy_to_user((void __user *)arg, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
2090
2091         case SNDCTL_DSP_NONBLOCK:
2092                 file->f_flags |= O_NONBLOCK;
2093                 return 0;
2094
2095         case SNDCTL_DSP_GETODELAY:
2096                 if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
2097                         return val;
2098                 spin_lock_irqsave(&s->lock, flags);
2099                 es1370_update_ptr(s);
2100                 count = s->dma_dac1.count;
2101                 spin_unlock_irqrestore(&s->lock, flags);
2102                 if (count < 0)
2103                         count = 0;
2104                 return put_user(count, p);
2105
2106         case SNDCTL_DSP_GETOPTR:
2107                 if (!s->dma_dac1.ready && (val = prog_dmabuf_dac1(s)) != 0)
2108                         return val;
2109                 spin_lock_irqsave(&s->lock, flags);
2110                 es1370_update_ptr(s);
2111                 cinfo.bytes = s->dma_dac1.total_bytes;
2112                 count = s->dma_dac1.count;
2113                 if (count < 0)
2114                         count = 0;
2115                 cinfo.blocks = count >> s->dma_dac1.fragshift;
2116                 cinfo.ptr = s->dma_dac1.hwptr;
2117                 if (s->dma_dac1.mapped)
2118                         s->dma_dac1.count &= s->dma_dac1.fragsize-1;
2119                 spin_unlock_irqrestore(&s->lock, flags);
2120                 if (copy_to_user((void __user *)arg, &cinfo, sizeof(cinfo)))
2121                         return -EFAULT;
2122                 return 0;
2123
2124         case SNDCTL_DSP_GETBLKSIZE:
2125                 if ((val = prog_dmabuf_dac1(s)))
2126                         return val;
2127                 return put_user(s->dma_dac1.fragsize, p);
2128
2129         case SNDCTL_DSP_SETFRAGMENT:
2130                 if (get_user(val, p))
2131                         return -EFAULT;
2132                 s->dma_dac1.ossfragshift = val & 0xffff;
2133                 s->dma_dac1.ossmaxfrags = (val >> 16) & 0xffff;
2134                 if (s->dma_dac1.ossfragshift < 4)
2135                         s->dma_dac1.ossfragshift = 4;
2136                 if (s->dma_dac1.ossfragshift > 15)
2137                         s->dma_dac1.ossfragshift = 15;
2138                 if (s->dma_dac1.ossmaxfrags < 4)
2139                         s->dma_dac1.ossmaxfrags = 4;
2140                 return 0;
2141
2142         case SNDCTL_DSP_SUBDIVIDE:
2143                 if (s->dma_dac1.subdivision)
2144                         return -EINVAL;
2145                 if (get_user(val, p))
2146                         return -EFAULT;
2147                 if (val != 1 && val != 2 && val != 4)
2148                         return -EINVAL;
2149                 s->dma_dac1.subdivision = val;
2150                 return 0;
2151
2152         case SOUND_PCM_READ_RATE:
2153                 return put_user(dac1_samplerate[(s->ctrl & CTRL_WTSRSEL) >> CTRL_SH_WTSRSEL], p);
2154
2155         case SOUND_PCM_READ_CHANNELS:
2156                 return put_user((s->sctrl & SCTRL_P1SMB) ? 2 : 1, p);
2157
2158         case SOUND_PCM_READ_BITS:
2159                 return put_user((s->sctrl & SCTRL_P1SEB) ? 16 : 8, p);
2160
2161         case SOUND_PCM_WRITE_FILTER:
2162         case SNDCTL_DSP_SETSYNCRO:
2163         case SOUND_PCM_READ_FILTER:
2164                 return -EINVAL;
2165
2166         }
2167         return mixer_ioctl(s, cmd, arg);
2168 }
2169
2170 static int es1370_open_dac(struct inode *inode, struct file *file)
2171 {
2172         unsigned int minor = iminor(inode);
2173         DECLARE_WAITQUEUE(wait, current);
2174         unsigned long flags;
2175         struct list_head *list;
2176         struct es1370_state *s;
2177
2178         for (list = devs.next; ; list = list->next) {
2179                 if (list == &devs)
2180                         return -ENODEV;
2181                 s = list_entry(list, struct es1370_state, devs);
2182                 if (!((s->dev_dac ^ minor) & ~0xf))
2183                         break;
2184         }
2185         VALIDATE_STATE(s);
2186         /* we allow opening with O_RDWR, most programs do it although they will only write */
2187 #if 0
2188         if (file->f_mode & FMODE_READ)
2189                 return -EPERM;
2190 #endif
2191         if (!(file->f_mode & FMODE_WRITE))
2192                 return -EINVAL;
2193         file->private_data = s;
2194         /* wait for device to become free */
2195         down(&s->open_sem);
2196         while (s->open_mode & FMODE_DAC) {
2197                 if (file->f_flags & O_NONBLOCK) {
2198                         up(&s->open_sem);
2199                         return -EBUSY;
2200                 }
2201                 add_wait_queue(&s->open_wait, &wait);
2202                 __set_current_state(TASK_INTERRUPTIBLE);
2203                 up(&s->open_sem);
2204                 schedule();
2205                 remove_wait_queue(&s->open_wait, &wait);
2206                 set_current_state(TASK_RUNNING);
2207                 if (signal_pending(current))
2208                         return -ERESTARTSYS;
2209                 down(&s->open_sem);
2210         }
2211         s->dma_dac1.ossfragshift = s->dma_dac1.ossmaxfrags = s->dma_dac1.subdivision = 0;
2212         s->dma_dac1.enabled = 1;
2213         spin_lock_irqsave(&s->lock, flags);
2214         s->ctrl = (s->ctrl & ~CTRL_WTSRSEL) | (1 << CTRL_SH_WTSRSEL);
2215         s->sctrl &= ~SCTRL_P1FMT;
2216         if ((minor & 0xf) == SND_DEV_DSP16)
2217                 s->sctrl |= ES1370_FMT_S16_MONO << SCTRL_SH_P1FMT;
2218         else
2219                 s->sctrl |= ES1370_FMT_U8_MONO << SCTRL_SH_P1FMT;
2220         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2221         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2222         spin_unlock_irqrestore(&s->lock, flags);
2223         s->open_mode |= FMODE_DAC;
2224         up(&s->open_sem);
2225         return 0;
2226 }
2227
2228 static int es1370_release_dac(struct inode *inode, struct file *file)
2229 {
2230         struct es1370_state *s = (struct es1370_state *)file->private_data;
2231
2232         VALIDATE_STATE(s);
2233         lock_kernel();
2234         drain_dac1(s, file->f_flags & O_NONBLOCK);
2235         down(&s->open_sem);
2236         stop_dac1(s);
2237         dealloc_dmabuf(s, &s->dma_dac1);
2238         s->open_mode &= ~FMODE_DAC;
2239         wake_up(&s->open_wait);
2240         up(&s->open_sem);
2241         unlock_kernel();
2242         return 0;
2243 }
2244
2245 static /*const*/ struct file_operations es1370_dac_fops = {
2246         .owner          = THIS_MODULE,
2247         .llseek         = no_llseek,
2248         .write          = es1370_write_dac,
2249         .poll           = es1370_poll_dac,
2250         .ioctl          = es1370_ioctl_dac,
2251         .mmap           = es1370_mmap_dac,
2252         .open           = es1370_open_dac,
2253         .release        = es1370_release_dac,
2254 };
2255
2256 /* --------------------------------------------------------------------- */
2257
2258 static ssize_t es1370_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
2259 {
2260         struct es1370_state *s = (struct es1370_state *)file->private_data;
2261         DECLARE_WAITQUEUE(wait, current);
2262         ssize_t ret;
2263         unsigned long flags;
2264         unsigned ptr;
2265         int cnt;
2266
2267         VALIDATE_STATE(s);
2268         if (ppos != &file->f_pos)
2269                 return -ESPIPE;
2270         if (!access_ok(VERIFY_WRITE, buffer, count))
2271                 return -EFAULT;
2272         if (count == 0)
2273                 return 0;
2274         ret = 0;
2275         add_wait_queue(&s->midi.iwait, &wait);
2276         while (count > 0) {
2277                 spin_lock_irqsave(&s->lock, flags);
2278                 ptr = s->midi.ird;
2279                 cnt = MIDIINBUF - ptr;
2280                 if (s->midi.icnt < cnt)
2281                         cnt = s->midi.icnt;
2282                 if (cnt <= 0)
2283                         __set_current_state(TASK_INTERRUPTIBLE);
2284                 spin_unlock_irqrestore(&s->lock, flags);
2285                 if (cnt > count)
2286                         cnt = count;
2287                 if (cnt <= 0) {
2288                         if (file->f_flags & O_NONBLOCK) {
2289                                 if (!ret)
2290                                         ret = -EAGAIN;
2291                                 break;
2292                         }
2293                         schedule();
2294                         if (signal_pending(current)) {
2295                                 if (!ret)
2296                                         ret = -ERESTARTSYS;
2297                                 break;
2298                         }
2299                         continue;
2300                 }
2301                 if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt)) {
2302                         if (!ret)
2303                                 ret = -EFAULT;
2304                         break;
2305                 }
2306                 ptr = (ptr + cnt) % MIDIINBUF;
2307                 spin_lock_irqsave(&s->lock, flags);
2308                 s->midi.ird = ptr;
2309                 s->midi.icnt -= cnt;
2310                 spin_unlock_irqrestore(&s->lock, flags);
2311                 count -= cnt;
2312                 buffer += cnt;
2313                 ret += cnt;
2314                 break;
2315         }
2316         __set_current_state(TASK_RUNNING);
2317         remove_wait_queue(&s->midi.iwait, &wait);
2318         return ret;
2319 }
2320
2321 static ssize_t es1370_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
2322 {
2323         struct es1370_state *s = (struct es1370_state *)file->private_data;
2324         DECLARE_WAITQUEUE(wait, current);
2325         ssize_t ret;
2326         unsigned long flags;
2327         unsigned ptr;
2328         int cnt;
2329
2330         VALIDATE_STATE(s);
2331         if (ppos != &file->f_pos)
2332                 return -ESPIPE;
2333         if (!access_ok(VERIFY_READ, buffer, count))
2334                 return -EFAULT;
2335         if (count == 0)
2336                 return 0;
2337         ret = 0;
2338         add_wait_queue(&s->midi.owait, &wait);
2339         while (count > 0) {
2340                 spin_lock_irqsave(&s->lock, flags);
2341                 ptr = s->midi.owr;
2342                 cnt = MIDIOUTBUF - ptr;
2343                 if (s->midi.ocnt + cnt > MIDIOUTBUF)
2344                         cnt = MIDIOUTBUF - s->midi.ocnt;
2345                 if (cnt <= 0) {
2346                         __set_current_state(TASK_INTERRUPTIBLE);
2347                         es1370_handle_midi(s);
2348                 }
2349                 spin_unlock_irqrestore(&s->lock, flags);
2350                 if (cnt > count)
2351                         cnt = count;
2352                 if (cnt <= 0) {
2353                         if (file->f_flags & O_NONBLOCK) {
2354                                 if (!ret)
2355                                         ret = -EAGAIN;
2356                                 break;
2357                         }
2358                         schedule();
2359                         if (signal_pending(current)) {
2360                                 if (!ret)
2361                                         ret = -ERESTARTSYS;
2362                                 break;
2363                         }
2364                         continue;
2365                 }
2366                 if (copy_from_user(s->midi.obuf + ptr, buffer, cnt)) {
2367                         if (!ret)
2368                                 ret = -EFAULT;
2369                         break;
2370                 }
2371                 ptr = (ptr + cnt) % MIDIOUTBUF;
2372                 spin_lock_irqsave(&s->lock, flags);
2373                 s->midi.owr = ptr;
2374                 s->midi.ocnt += cnt;
2375                 spin_unlock_irqrestore(&s->lock, flags);
2376                 count -= cnt;
2377                 buffer += cnt;
2378                 ret += cnt;
2379                 spin_lock_irqsave(&s->lock, flags);
2380                 es1370_handle_midi(s);
2381                 spin_unlock_irqrestore(&s->lock, flags);
2382         }
2383         __set_current_state(TASK_RUNNING);
2384         remove_wait_queue(&s->midi.owait, &wait);
2385         return ret;
2386 }
2387
2388 /* No kernel lock - we have our own spinlock */
2389 static unsigned int es1370_midi_poll(struct file *file, struct poll_table_struct *wait)
2390 {
2391         struct es1370_state *s = (struct es1370_state *)file->private_data;
2392         unsigned long flags;
2393         unsigned int mask = 0;
2394
2395         VALIDATE_STATE(s);
2396         if (file->f_mode & FMODE_WRITE)
2397                 poll_wait(file, &s->midi.owait, wait);
2398         if (file->f_mode & FMODE_READ)
2399                 poll_wait(file, &s->midi.iwait, wait);
2400         spin_lock_irqsave(&s->lock, flags);
2401         if (file->f_mode & FMODE_READ) {
2402                 if (s->midi.icnt > 0)
2403                         mask |= POLLIN | POLLRDNORM;
2404         }
2405         if (file->f_mode & FMODE_WRITE) {
2406                 if (s->midi.ocnt < MIDIOUTBUF)
2407                         mask |= POLLOUT | POLLWRNORM;
2408         }
2409         spin_unlock_irqrestore(&s->lock, flags);
2410         return mask;
2411 }
2412
2413 static int es1370_midi_open(struct inode *inode, struct file *file)
2414 {
2415         unsigned int minor = iminor(inode);
2416         DECLARE_WAITQUEUE(wait, current);
2417         unsigned long flags;
2418         struct list_head *list;
2419         struct es1370_state *s;
2420
2421         for (list = devs.next; ; list = list->next) {
2422                 if (list == &devs)
2423                         return -ENODEV;
2424                 s = list_entry(list, struct es1370_state, devs);
2425                 if (s->dev_midi == minor)
2426                         break;
2427         }
2428         VALIDATE_STATE(s);
2429         file->private_data = s;
2430         /* wait for device to become free */
2431         down(&s->open_sem);
2432         while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
2433                 if (file->f_flags & O_NONBLOCK) {
2434                         up(&s->open_sem);
2435                         return -EBUSY;
2436                 }
2437                 add_wait_queue(&s->open_wait, &wait);
2438                 __set_current_state(TASK_INTERRUPTIBLE);
2439                 up(&s->open_sem);
2440                 schedule();
2441                 remove_wait_queue(&s->open_wait, &wait);
2442                 set_current_state(TASK_RUNNING);
2443                 if (signal_pending(current))
2444                         return -ERESTARTSYS;
2445                 down(&s->open_sem);
2446         }
2447         spin_lock_irqsave(&s->lock, flags);
2448         if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2449                 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2450                 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2451                 outb(UCTRL_CNTRL_SWR, s->io+ES1370_REG_UART_CONTROL);
2452                 outb(0, s->io+ES1370_REG_UART_CONTROL);
2453                 outb(0, s->io+ES1370_REG_UART_TEST);
2454         }
2455         if (file->f_mode & FMODE_READ) {
2456                 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2457         }
2458         if (file->f_mode & FMODE_WRITE) {
2459                 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2460         }
2461         s->ctrl |= CTRL_UART_EN;
2462         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2463         es1370_handle_midi(s);
2464         spin_unlock_irqrestore(&s->lock, flags);
2465         s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
2466         up(&s->open_sem);
2467         return 0;
2468 }
2469
2470 static int es1370_midi_release(struct inode *inode, struct file *file)
2471 {
2472         struct es1370_state *s = (struct es1370_state *)file->private_data;
2473         DECLARE_WAITQUEUE(wait, current);
2474         unsigned long flags;
2475         unsigned count, tmo;
2476
2477         VALIDATE_STATE(s);
2478
2479         lock_kernel();
2480         if (file->f_mode & FMODE_WRITE) {
2481                 add_wait_queue(&s->midi.owait, &wait);
2482                 for (;;) {
2483                         __set_current_state(TASK_INTERRUPTIBLE);
2484                         spin_lock_irqsave(&s->lock, flags);
2485                         count = s->midi.ocnt;
2486                         spin_unlock_irqrestore(&s->lock, flags);
2487                         if (count <= 0)
2488                                 break;
2489                         if (signal_pending(current))
2490                                 break;
2491                         if (file->f_flags & O_NONBLOCK)
2492                                 break;
2493                         tmo = (count * HZ) / 3100;
2494                         if (!schedule_timeout(tmo ? : 1) && tmo)
2495                                 DBG(printk(KERN_DEBUG "es1370: midi timed out??\n");)
2496                 }
2497                 remove_wait_queue(&s->midi.owait, &wait);
2498                 set_current_state(TASK_RUNNING);
2499         }
2500         down(&s->open_sem);
2501         s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
2502         spin_lock_irqsave(&s->lock, flags);
2503         if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2504                 s->ctrl &= ~CTRL_UART_EN;
2505                 outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2506         }
2507         spin_unlock_irqrestore(&s->lock, flags);
2508         wake_up(&s->open_wait);
2509         up(&s->open_sem);
2510         unlock_kernel();
2511         return 0;
2512 }
2513
2514 static /*const*/ struct file_operations es1370_midi_fops = {
2515         .owner          = THIS_MODULE,
2516         .llseek         = no_llseek,
2517         .read           = es1370_midi_read,
2518         .write          = es1370_midi_write,
2519         .poll           = es1370_midi_poll,
2520         .open           = es1370_midi_open,
2521         .release        = es1370_midi_release,
2522 };
2523
2524 /* --------------------------------------------------------------------- */
2525
2526 /* maximum number of devices; only used for command line params */
2527 #define NR_DEVICE 5
2528
2529 static int lineout[NR_DEVICE];
2530 static int micbias[NR_DEVICE];
2531
2532 static unsigned int devindex;
2533
2534 MODULE_PARM(lineout, "1-" __MODULE_STRING(NR_DEVICE) "i");
2535 MODULE_PARM_DESC(lineout, "if 1 the LINE input is converted to LINE out");
2536 MODULE_PARM(micbias, "1-" __MODULE_STRING(NR_DEVICE) "i");
2537 MODULE_PARM_DESC(micbias, "sets the +5V bias for an electret microphone");
2538
2539 MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
2540 MODULE_DESCRIPTION("ES1370 AudioPCI Driver");
2541 MODULE_LICENSE("GPL");
2542
2543
2544 /* --------------------------------------------------------------------- */
2545
2546 static struct initvol {
2547         int mixch;
2548         int vol;
2549 } initvol[] __initdata = {
2550         { SOUND_MIXER_WRITE_VOLUME, 0x4040 },
2551         { SOUND_MIXER_WRITE_PCM, 0x4040 },
2552         { SOUND_MIXER_WRITE_SYNTH, 0x4040 },
2553         { SOUND_MIXER_WRITE_CD, 0x4040 },
2554         { SOUND_MIXER_WRITE_LINE, 0x4040 },
2555         { SOUND_MIXER_WRITE_LINE1, 0x4040 },
2556         { SOUND_MIXER_WRITE_LINE2, 0x4040 },
2557         { SOUND_MIXER_WRITE_LINE3, 0x4040 },
2558         { SOUND_MIXER_WRITE_MIC, 0x4040 },
2559         { SOUND_MIXER_WRITE_OGAIN, 0x4040 }
2560 };
2561
2562 static int __devinit es1370_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid)
2563 {
2564         struct es1370_state *s;
2565         mm_segment_t fs;
2566         int i, val, ret;
2567
2568         if ((ret=pci_enable_device(pcidev)))
2569                 return ret;
2570
2571         if ( !(pci_resource_flags(pcidev, 0) & IORESOURCE_IO) ||
2572              !pci_resource_start(pcidev, 0)
2573         )
2574                 return -ENODEV;
2575         if (pcidev->irq == 0)
2576                 return -ENODEV;
2577         i = pci_set_dma_mask(pcidev, 0xffffffff);
2578         if (i) {
2579                 printk(KERN_WARNING "es1370: architecture does not support 32bit PCI busmaster DMA\n");
2580                 return i;
2581         }
2582         if (!(s = kmalloc(sizeof(struct es1370_state), GFP_KERNEL))) {
2583                 printk(KERN_WARNING "es1370: out of memory\n");
2584                 return -ENOMEM;
2585         }
2586         memset(s, 0, sizeof(struct es1370_state));
2587         init_waitqueue_head(&s->dma_adc.wait);
2588         init_waitqueue_head(&s->dma_dac1.wait);
2589         init_waitqueue_head(&s->dma_dac2.wait);
2590         init_waitqueue_head(&s->open_wait);
2591         init_waitqueue_head(&s->midi.iwait);
2592         init_waitqueue_head(&s->midi.owait);
2593         init_MUTEX(&s->open_sem);
2594         spin_lock_init(&s->lock);
2595         s->magic = ES1370_MAGIC;
2596         s->dev = pcidev;
2597         s->io = pci_resource_start(pcidev, 0);
2598         s->irq = pcidev->irq;
2599         if (!request_region(s->io, ES1370_EXTENT, "es1370")) {
2600                 printk(KERN_ERR "es1370: io ports %#lx-%#lx in use\n", s->io, s->io+ES1370_EXTENT-1);
2601                 ret = -EBUSY;
2602                 goto err_region;
2603         }
2604         if ((ret=request_irq(s->irq, es1370_interrupt, SA_SHIRQ, "es1370",s))) {
2605                 printk(KERN_ERR "es1370: irq %u in use\n", s->irq);
2606                 goto err_irq;
2607         }
2608
2609         /* initialize codec registers */
2610         /* note: setting CTRL_SERR_DIS is reported to break
2611          * mic bias setting (by Kim.Berts@fisub.mail.abb.com) */
2612         s->ctrl = CTRL_CDC_EN | (DAC2_SRTODIV(8000) << CTRL_SH_PCLKDIV) | (1 << CTRL_SH_WTSRSEL);
2613         s->gameport.io = 0;
2614         if (!request_region(0x200, JOY_EXTENT, "es1370"))
2615                 printk(KERN_ERR "es1370: joystick io port 0x200 in use\n");
2616         else {
2617                 s->ctrl |= CTRL_JYSTK_EN;
2618                 s->gameport.io = 0x200;
2619         }
2620         if (lineout[devindex])
2621                 s->ctrl |= CTRL_XCTL0;
2622         if (micbias[devindex])
2623                 s->ctrl |= CTRL_XCTL1;
2624         s->sctrl = 0;
2625         printk(KERN_INFO "es1370: found adapter at io %#lx irq %u\n"
2626                KERN_INFO "es1370: features: joystick %s, line %s, mic impedance %s\n",
2627                s->io, s->irq, (s->ctrl & CTRL_JYSTK_EN) ? "on" : "off",
2628                (s->ctrl & CTRL_XCTL0) ? "out" : "in",
2629                        (s->ctrl & CTRL_XCTL1) ? "1" : "0");
2630         /* register devices */
2631         if ((s->dev_audio = register_sound_dsp(&es1370_audio_fops, -1)) < 0) {
2632                 ret = s->dev_audio;
2633                 goto err_dev1;
2634         }
2635         if ((s->dev_mixer = register_sound_mixer(&es1370_mixer_fops, -1)) < 0) {
2636                 ret = s->dev_mixer;
2637                 goto err_dev2;
2638         }
2639         if ((s->dev_dac = register_sound_dsp(&es1370_dac_fops, -1)) < 0) {
2640                 ret = s->dev_dac;
2641                 goto err_dev3;
2642         }
2643         if ((s->dev_midi = register_sound_midi(&es1370_midi_fops, -1)) < 0) {
2644                 ret = s->dev_midi;
2645                 goto err_dev4;
2646         }
2647         /* initialize the chips */
2648         outl(s->ctrl, s->io+ES1370_REG_CONTROL);
2649         outl(s->sctrl, s->io+ES1370_REG_SERIAL_CONTROL);
2650         /* point phantom write channel to "bugbuf" */
2651         s->bugbuf_cpu = pci_alloc_consistent(pcidev,16,&s->bugbuf_dma);
2652         if (!s->bugbuf_cpu) {
2653                 ret = -ENOMEM;
2654                 goto err_dev5;
2655         }
2656         outl((ES1370_REG_PHANTOM_FRAMEADR >> 8) & 15, s->io+ES1370_REG_MEMPAGE);
2657         outl(s->bugbuf_dma, s->io+(ES1370_REG_PHANTOM_FRAMEADR & 0xff));
2658         outl(0, s->io+(ES1370_REG_PHANTOM_FRAMECNT & 0xff));
2659         pci_set_master(pcidev);  /* enable bus mastering */
2660         wrcodec(s, 0x16, 3); /* no RST, PD */
2661         wrcodec(s, 0x17, 0); /* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off the LRCLK2 PLL; program DAC_SYNC=0!!  */
2662         wrcodec(s, 0x18, 0); /* recording source is mixer */
2663         wrcodec(s, 0x19, s->mix.micpreamp = 1); /* turn on MIC preamp */
2664         s->mix.imix = 1;
2665         fs = get_fs();
2666         set_fs(KERNEL_DS);
2667         val = SOUND_MASK_LINE|SOUND_MASK_SYNTH|SOUND_MASK_CD;
2668         mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
2669         for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
2670                 val = initvol[i].vol;
2671                 mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
2672         }
2673         set_fs(fs);
2674         /* register gameport */
2675         if (s->gameport.io)
2676                 gameport_register_port(&s->gameport);
2677
2678         /* store it in the driver field */
2679         pci_set_drvdata(pcidev, s);
2680         /* put it into driver list */
2681         list_add_tail(&s->devs, &devs);
2682         /* increment devindex */
2683         if (devindex < NR_DEVICE-1)
2684                 devindex++;
2685         return 0;
2686
2687  err_dev5:
2688         unregister_sound_midi(s->dev_midi);
2689  err_dev4:
2690         unregister_sound_dsp(s->dev_dac);
2691  err_dev3:
2692         unregister_sound_mixer(s->dev_mixer);
2693  err_dev2:
2694         unregister_sound_dsp(s->dev_audio);
2695  err_dev1:
2696         printk(KERN_ERR "es1370: cannot register misc device\n");
2697         free_irq(s->irq, s);
2698         if (s->gameport.io)
2699                 release_region(s->gameport.io, JOY_EXTENT);
2700  err_irq:
2701         release_region(s->io, ES1370_EXTENT);
2702  err_region:
2703         kfree(s);
2704         return ret;
2705 }
2706
2707 static void __devexit es1370_remove(struct pci_dev *dev)
2708 {
2709         struct es1370_state *s = pci_get_drvdata(dev);
2710
2711         if (!s)
2712                 return;
2713         list_del(&s->devs);
2714         outl(CTRL_SERR_DIS | (1 << CTRL_SH_WTSRSEL), s->io+ES1370_REG_CONTROL); /* switch everything off */
2715         outl(0, s->io+ES1370_REG_SERIAL_CONTROL); /* clear serial interrupts */
2716         synchronize_irq(s->irq);
2717         free_irq(s->irq, s);
2718         if (s->gameport.io) {
2719                 gameport_unregister_port(&s->gameport);
2720                 release_region(s->gameport.io, JOY_EXTENT);
2721         }
2722         release_region(s->io, ES1370_EXTENT);
2723         unregister_sound_dsp(s->dev_audio);
2724         unregister_sound_mixer(s->dev_mixer);
2725         unregister_sound_dsp(s->dev_dac);
2726         unregister_sound_midi(s->dev_midi);
2727         pci_free_consistent(dev, 16, s->bugbuf_cpu, s->bugbuf_dma);
2728         kfree(s);
2729         pci_set_drvdata(dev, NULL);
2730 }
2731
2732 static struct pci_device_id id_table[] = {
2733         { PCI_VENDOR_ID_ENSONIQ, PCI_DEVICE_ID_ENSONIQ_ES1370, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
2734         { 0, }
2735 };
2736
2737 MODULE_DEVICE_TABLE(pci, id_table);
2738
2739 static struct pci_driver es1370_driver = {
2740         .name           = "es1370",
2741         .id_table       = id_table,
2742         .probe          = es1370_probe,
2743         .remove         = __devexit_p(es1370_remove),
2744 };
2745
2746 static int __init init_es1370(void)
2747 {
2748         printk(KERN_INFO "es1370: version v0.38 time " __TIME__ " " __DATE__ "\n");
2749         return pci_module_init(&es1370_driver);
2750 }
2751
2752 static void __exit cleanup_es1370(void)
2753 {
2754         printk(KERN_INFO "es1370: unloading\n");
2755         pci_unregister_driver(&es1370_driver);
2756 }
2757
2758 module_init(init_es1370);
2759 module_exit(cleanup_es1370);
2760
2761 /* --------------------------------------------------------------------- */
2762
2763 #ifndef MODULE
2764
2765 /* format is: es1370=lineout[,micbias]] */
2766
2767 static int __init es1370_setup(char *str)
2768 {
2769         static unsigned __initdata nr_dev = 0;
2770
2771         if (nr_dev >= NR_DEVICE)
2772                 return 0;
2773
2774         (void)
2775         ((get_option(&str,&lineout [nr_dev]) == 2)
2776          && get_option(&str,&micbias [nr_dev])
2777         );
2778
2779         nr_dev++;
2780         return 1;
2781 }
2782
2783 __setup("es1370=", es1370_setup);
2784
2785 #endif /* MODULE */