drivers/telephony/ixj.c

   1 /****************************************************************************
   2  *    ixj.c
   3  *
   4  * Device Driver for Quicknet Technologies, Inc.'s Telephony cards
   5  * including the Internet PhoneJACK, Internet PhoneJACK Lite,
   6  * Internet PhoneJACK PCI, Internet LineJACK, Internet PhoneCARD and
   7  * SmartCABLE
   8  *
   9  *    (c) Copyright 1999-2001  Quicknet Technologies, Inc.
  10  *
  11  *    This program is free software; you can redistribute it and/or
  12  *    modify it under the terms of the GNU General Public License
  13  *    as published by the Free Software Foundation; either version
  14  *    2 of the License, or (at your option) any later version.
  15  *
  16  * Author:          Ed Okerson, <eokerson@quicknet.net>
  17  *
  18  * Contributors:    Greg Herlein, <gherlein@quicknet.net>
  19  *                  David W. Erhart, <derhart@quicknet.net>
  20  *                  John Sellers, <jsellers@quicknet.net>
  21  *                  Mike Preston, <mpreston@quicknet.net>
  22  *
  23  * Fixes:           David Huggins-Daines, <dhd@cepstral.com>
  24  *                  Fabio Ferrari, <fabio.ferrari@digitro.com.br>
  25  *                  Artis Kugevics, <artis@mt.lv>
  26  *                  Daniele Bellucci, <bellucda@tiscali.it>
  27  *
  28  * More information about the hardware related to this driver can be found
  29  * at our website:    http://www.quicknet.net
  30  *
  31  * IN NO EVENT SHALL QUICKNET TECHNOLOGIES, INC. BE LIABLE TO ANY PARTY FOR
  32  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
  33  * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF QUICKNET
  34  * TECHNOLOGIES, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35  *
  36  * QUICKNET TECHNOLOGIES, INC. SPECIFICALLY DISCLAIMS ANY WARRANTIES,
  37  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  38  * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  39  * ON AN "AS IS" BASIS, AND QUICKNET TECHNOLOGIES, INC. HAS NO OBLIGATION
  40  * TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  41  *
  42  ***************************************************************************/
  43
  44 /*
  45  * Revision 4.8  2003/07/09 19:39:00  Daniele Bellucci
  46  * Audit some copy_*_user and minor cleanup.
  47  *
  48  * Revision 4.7  2001/08/13 06:19:33  craigs
  49  * Added additional changes from Alan Cox and John Anderson for
  50  * 2.2 to 2.4 cleanup and bounds checking
  51  *
  52  * Revision 4.6  2001/08/13 01:05:05  craigs
  53  * Really fixed PHONE_QUERY_CODEC problem this time
  54  *
  55  * Revision 4.5  2001/08/13 00:11:03  craigs
  56  * Fixed problem in handling of PHONE_QUERY_CODEC, thanks to Shane Anderson
  57  *
  58  * Revision 4.4  2001/08/07 07:58:12  craigs
  59  * Changed back to three digit version numbers
  60  * Added tagbuild target to allow automatic and easy tagging of versions
  61  *
  62  * Revision 4.3  2001/08/07 07:24:47  craigs
  63  * Added ixj-ver.h to allow easy configuration management of driver
  64  * Added display of version number in /prox/ixj
  65  *
  66  * Revision 4.2  2001/08/06 07:07:19  craigs
  67  * Reverted IXJCTL_DSP_TYPE and IXJCTL_DSP_VERSION files to original
  68  * behaviour of returning int rather than short *
  69  *
  70  * Revision 4.1  2001/08/05 00:17:37  craigs
  71  * More changes for correct PCMCIA installation
  72  * Start of changes for backward Linux compatibility
  73  *
  74  * Revision 4.0  2001/08/04 12:33:12  craigs
  75  * New version using GNU autoconf
  76  *
  77  * Revision 3.105  2001/07/20 23:14:32  eokerson
  78  * More work on CallerID generation when using ring cadences.
  79  *
  80  * Revision 3.104  2001/07/06 01:33:55  eokerson
  81  * Some bugfixes from Robert Vojta <vojta@ipex.cz> and a few mods to the Makefile.
  82  *
  83  * Revision 3.103  2001/07/05 19:20:16  eokerson
  84  * Updated HOWTO
  85  * Changed mic gain to 30dB on Internet LineJACK mic/speaker port.
  86  *
  87  * Revision 3.102  2001/07/03 23:51:21  eokerson
  88  * Un-mute mic on Internet LineJACK when in speakerphone mode.
  89  *
  90  * Revision 3.101  2001/07/02 19:26:56  eokerson
  91  * Removed initialiazation of ixjdebug and ixj_convert_loaded so they will go in the .bss instead of the .data
  92  *
  93  * Revision 3.100  2001/07/02 19:18:27  eokerson
  94  * Changed driver to make dynamic allocation possible.  We now pass IXJ * between functions instead of array indexes.
  95  * Fixed the way the POTS and PSTN ports interact during a PSTN call to allow local answering.
  96  * Fixed speaker mode on Internet LineJACK.
  97  *
  98  * Revision 3.99  2001/05/09 14:11:16  eokerson
  99  * Fixed kmalloc error in ixj_build_filter_cadence.  Thanks David Chan <cat@waulogy.stanford.edu>.
 100  *
 101  * Revision 3.98  2001/05/08 19:55:33  eokerson
 102  * Fixed POTS hookstate detection while it is connected to PSTN port.
 103  *
 104  * Revision 3.97  2001/05/08 00:01:04  eokerson
 105  * Fixed kernel oops when sending caller ID data.
 106  *
 107  * Revision 3.96  2001/05/04 23:09:30  eokerson
 108  * Now uses one kernel timer for each card, instead of one for the entire driver.
 109  *
 110  * Revision 3.95  2001/04/25 22:06:47  eokerson
 111  * Fixed squawking at beginning of some G.723.1 calls.
 112  *
 113  * Revision 3.94  2001/04/03 23:42:00  eokerson
 114  * Added linear volume ioctls
 115  * Added raw filter load ioctl
 116  *
 117  * Revision 3.93  2001/02/27 01:00:06  eokerson
 118  * Fixed blocking in CallerID.
 119  * Reduced size of ixj structure for smaller driver footprint.
 120  *
 121  * Revision 3.92  2001/02/20 22:02:59  eokerson
 122  * Fixed isapnp and pcmcia module compatibility for 2.4.x kernels.
 123  * Improved PSTN ring detection.
 124  * Fixed wink generation on POTS ports.
 125  *
 126  * Revision 3.91  2001/02/13 00:55:44  eokerson
 127  * Turn AEC back on after changing frame sizes.
 128  *
 129  * Revision 3.90  2001/02/12 16:42:00  eokerson
 130  * Added ALAW codec, thanks to Fabio Ferrari for the table based converters to make ALAW from ULAW.
 131  *
 132  * Revision 3.89  2001/02/12 15:41:16  eokerson
 133  * Fix from Artis Kugevics - Tone gains were not being set correctly.
 134  *
 135  * Revision 3.88  2001/02/05 23:25:42  eokerson
 136  * Fixed lockup bugs with deregister.
 137  *
 138  * Revision 3.87  2001/01/29 21:00:39  eokerson
 139  * Fix from Fabio Ferrari <fabio.ferrari@digitro.com.br> to properly handle EAGAIN and EINTR during non-blocking write.
 140  * Updated copyright date.
 141  *
 142  * Revision 3.86  2001/01/23 23:53:46  eokerson
 143  * Fixes to G.729 compatibility.
 144  *
 145  * Revision 3.85  2001/01/23 21:30:36  eokerson
 146  * Added verbage about cards supported.
 147  * Removed commands that put the card in low power mode at some times that it should not be in low power mode.
 148  *
 149  * Revision 3.84  2001/01/22 23:32:10  eokerson
 150  * Some bugfixes from David Huggins-Daines, <dhd@cepstral.com> and other cleanups.
 151  *
 152  * Revision 3.83  2001/01/19 14:51:41  eokerson
 153  * Fixed ixj_WriteDSPCommand to decrement usage counter when command fails.
 154  *
 155  * Revision 3.82  2001/01/19 00:34:49  eokerson
 156  * Added verbosity to write overlap errors.
 157  *
 158  * Revision 3.81  2001/01/18 23:56:54  eokerson
 159  * Fixed PSTN line test functions.
 160  *
 161  * Revision 3.80  2001/01/18 22:29:27  eokerson
 162  * Updated AEC/AGC values for different cards.
 163  *
 164  * Revision 3.79  2001/01/17 02:58:54  eokerson
 165  * Fixed AEC reset after Caller ID.
 166  * Fixed Codec lockup after Caller ID on Call Waiting when not using 30ms frames.
 167  *
 168  * Revision 3.78  2001/01/16 19:43:09  eokerson
 169  * Added support for Linux 2.4.x kernels.
 170  *
 171  * Revision 3.77  2001/01/09 04:00:52  eokerson
 172  * Linetest will now test the line, even if it has previously succeeded.
 173  *
 174  * Revision 3.76  2001/01/08 19:27:00  eokerson
 175  * Fixed problem with standard cable on Internet PhoneCARD.
 176  *
 177  * Revision 3.75  2000/12/22 16:52:14  eokerson
 178  * Modified to allow hookstate detection on the POTS port when the PSTN port is selected.
 179  *
 180  * Revision 3.74  2000/12/08 22:41:50  eokerson
 181  * Added capability for G729B.
 182  *
 183  * Revision 3.73  2000/12/07 23:35:16  eokerson
 184  * Added capability to have different ring pattern before CallerID data.
 185  * Added hookstate checks in CallerID routines to stop FSK.
 186  *
 187  * Revision 3.72  2000/12/06 19:31:31  eokerson
 188  * Modified signal behavior to only send one signal per event.
 189  *
 190  * Revision 3.71  2000/12/06 03:23:08  eokerson
 191  * Fixed CallerID on Call Waiting.
 192  *
 193  * Revision 3.70  2000/12/04 21:29:37  eokerson
 194  * Added checking to Smart Cable gain functions.
 195  *
 196  * Revision 3.69  2000/12/04 21:05:20  eokerson
 197  * Changed ixjdebug levels.
 198  * Added ioctls to change gains in Internet Phone CARD Smart Cable.
 199  *
 200  * Revision 3.68  2000/12/04 00:17:21  craigs
 201  * Changed mixer voice gain to +6dB rather than 0dB
 202  *
 203  * Revision 3.67  2000/11/30 21:25:51  eokerson
 204  * Fixed write signal errors.
 205  *
 206  * Revision 3.66  2000/11/29 22:42:44  eokerson
 207  * Fixed PSTN ring detect problems.
 208  *
 209  * Revision 3.65  2000/11/29 07:31:55  craigs
 210  * Added new 425Hz filter co-efficients
 211  * Added card-specific DTMF prescaler initialisation
 212  *
 213  * Revision 3.64  2000/11/28 14:03:32  craigs
 214  * Changed certain mixer initialisations to be 0dB rather than 12dB
 215  * Added additional information to /proc/ixj
 216  *
 217  * Revision 3.63  2000/11/28 11:38:41  craigs
 218  * Added display of AEC modes in AUTO and AGC mode
 219  *
 220  * Revision 3.62  2000/11/28 04:05:44  eokerson
 221  * Improved PSTN ring detection routine.
 222  *
 223  * Revision 3.61  2000/11/27 21:53:12  eokerson
 224  * Fixed flash detection.
 225  *
 226  * Revision 3.60  2000/11/27 15:57:29  eokerson
 227  * More work on G.729 load routines.
 228  *
 229  * Revision 3.59  2000/11/25 21:55:12  eokerson
 230  * Fixed errors in G.729 load routine.
 231  *
 232  * Revision 3.58  2000/11/25 04:08:29  eokerson
 233  * Added board locks around G.729 and TS85 load routines.
 234  *
 235  * Revision 3.57  2000/11/24 05:35:17  craigs
 236  * Added ability to retrieve mixer values on LineJACK
 237  * Added complete initialisation of all mixer values at startup
 238  * Fixed spelling mistake
 239  *
 240  * Revision 3.56  2000/11/23 02:52:11  robertj
 241  * Added cvs change log keyword.
 242  * Fixed bug in capabilities list when using G.729 module.
 243  *
 244  */
 245
 246 #include "ixj-ver.h"
 247
 248 #define PERFMON_STATS
 249 #define IXJDEBUG 0
 250 #define MAXRINGS 5
 251
 252 #include <linux/module.h>
 253
 254 #include <linux/init.h>
 255 #include <linux/sched.h>
 256 #include <linux/kernel.h>       /* printk() */
 257 #include <linux/fs.h>           /* everything... */
 258 #include <linux/errno.h>        /* error codes */
 259 #include <linux/slab.h>
 260 #include <linux/mutex.h>
 261 #include <linux/mm.h>
 262 #include <linux/ioport.h>
 263 #include <linux/interrupt.h>
 264 #include <linux/proc_fs.h>
 265 #include <linux/poll.h>
 266 #include <linux/timer.h>
 267 #include <linux/delay.h>
 268 #include <linux/pci.h>
 269
 270 #include <asm/io.h>
 271 #include <asm/uaccess.h>
 272
 273 #include <linux/isapnp.h>
 274
 275 #include "ixj.h"
 276
 277 #define TYPE(inode) (iminor(inode) >> 4)
 278 #define NUM(inode) (iminor(inode) & 0xf)
 279
 280 static DEFINE_MUTEX(ixj_mutex);
 281 static int ixjdebug;
 282 static int hertz = HZ;
 283 static int samplerate = 100;
 284
 285 module_param(ixjdebug, int, 0);
 286
 287 static DEFINE_PCI_DEVICE_TABLE(ixj_pci_tbl) = {
 288         { PCI_VENDOR_ID_QUICKNET, PCI_DEVICE_ID_QUICKNET_XJ,
 289           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 290         { }
 291 };
 292 MODULE_DEVICE_TABLE(pci, ixj_pci_tbl);
 293
 294 /************************************************************************
 295 *
 296 * ixjdebug meanings are now bit mapped instead of level based
 297 * Values can be or'ed together to turn on multiple messages
 298 *
 299 * bit  0 (0x0001) = any failure
 300 * bit  1 (0x0002) = general messages
 301 * bit  2 (0x0004) = POTS ringing related
 302 * bit  3 (0x0008) = PSTN events
 303 * bit  4 (0x0010) = PSTN Cadence state details
 304 * bit  5 (0x0020) = Tone detection triggers
 305 * bit  6 (0x0040) = Tone detection cadence details
 306 * bit  7 (0x0080) = ioctl tracking
 307 * bit  8 (0x0100) = signal tracking
 308 * bit  9 (0x0200) = CallerID generation details
 309 *
 310 ************************************************************************/
 311
 312 #ifdef IXJ_DYN_ALLOC
 313
 314 static IXJ *ixj[IXJMAX];
 315 #define get_ixj(b)      ixj[(b)]
 316
 317 /*
 318  *      Allocate a free IXJ device
 319  */
 320
 321 static IXJ *ixj_alloc()
 322 {
 323         for(cnt=0; cnt<IXJMAX; cnt++)
 324         {
 325                 if(ixj[cnt] == NULL || !ixj[cnt]->DSPbase)
 326                 {
 327                         j = kmalloc(sizeof(IXJ), GFP_KERNEL);
 328                         if (j == NULL)
 329                                 return NULL;
 330                         ixj[cnt] = j;
 331                         return j;
 332                 }
 333         }
 334         return NULL;
 335 }
 336
 337 static void ixj_fsk_free(IXJ *j)
 338 {
 339         kfree(j->fskdata);
 340         j->fskdata = NULL;
 341 }
 342
 343 static void ixj_fsk_alloc(IXJ *j)
 344 {
 345         if(!j->fskdata) {
 346                 j->fskdata = kmalloc(8000, GFP_KERNEL);
 347                 if (!j->fskdata) {
 348                         if(ixjdebug & 0x0200) {
 349                                 printk("IXJ phone%d - allocate failed\n", j->board);
 350                         }
 351                         return;
 352                 } else {
 353                         j->fsksize = 8000;
 354                         if(ixjdebug & 0x0200) {
 355                                 printk("IXJ phone%d - allocate succeeded\n", j->board);
 356                         }
 357                 }
 358         }
 359 }
 360
 361 #else
 362
 363 static IXJ ixj[IXJMAX];
 364 #define get_ixj(b)      (&ixj[(b)])
 365
 366 /*
 367  *      Allocate a free IXJ device
 368  */
 369
 370 static IXJ *ixj_alloc(void)
 371 {
 372         int cnt;
 373         for(cnt=0; cnt<IXJMAX; cnt++) {
 374                 if(!ixj[cnt].DSPbase)
 375                         return &ixj[cnt];
 376         }
 377         return NULL;
 378 }
 379
 380 static inline void ixj_fsk_free(IXJ *j) {;}
 381
 382 static inline void ixj_fsk_alloc(IXJ *j)
 383 {
 384         j->fsksize = 8000;
 385 }
 386
 387 #endif
 388
 389 #ifdef PERFMON_STATS
 390 #define ixj_perfmon(x)  ((x)++)
 391 #else
 392 #define ixj_perfmon(x)  do { } while(0)
 393 #endif
 394
 395 static int ixj_convert_loaded;
 396
 397 static int ixj_WriteDSPCommand(unsigned short, IXJ *j);
 398
 399 /************************************************************************
 400 *
 401 * These are function definitions to allow external modules to register
 402 * enhanced functionality call backs.
 403 *
 404 ************************************************************************/
 405
 406 static int Stub(IXJ * J, unsigned long arg)
 407 {
 408         return 0;
 409 }
 410
 411 static IXJ_REGFUNC ixj_PreRead = &Stub;
 412 static IXJ_REGFUNC ixj_PostRead = &Stub;
 413 static IXJ_REGFUNC ixj_PreWrite = &Stub;
 414 static IXJ_REGFUNC ixj_PostWrite = &Stub;
 415
 416 static void ixj_read_frame(IXJ *j);
 417 static void ixj_write_frame(IXJ *j);
 418 static void ixj_init_timer(IXJ *j);
 419 static void ixj_add_timer(IXJ * j);
 420 static void ixj_timeout(unsigned long ptr);
 421 static int read_filters(IXJ *j);
 422 static int LineMonitor(IXJ *j);
 423 static int ixj_fasync(int fd, struct file *, int mode);
 424 static int ixj_set_port(IXJ *j, int arg);
 425 static int ixj_set_pots(IXJ *j, int arg);
 426 static int ixj_hookstate(IXJ *j);
 427 static int ixj_record_start(IXJ *j);
 428 static void ixj_record_stop(IXJ *j);
 429 static void set_rec_volume(IXJ *j, int volume);
 430 static int get_rec_volume(IXJ *j);
 431 static int set_rec_codec(IXJ *j, int rate);
 432 static void ixj_vad(IXJ *j, int arg);
 433 static int ixj_play_start(IXJ *j);
 434 static void ixj_play_stop(IXJ *j);
 435 static int ixj_set_tone_on(unsigned short arg, IXJ *j);
 436 static int ixj_set_tone_off(unsigned short, IXJ *j);
 437 static int ixj_play_tone(IXJ *j, char tone);
 438 static void ixj_aec_start(IXJ *j, int level);
 439 static int idle(IXJ *j);
 440 static void ixj_ring_on(IXJ *j);
 441 static void ixj_ring_off(IXJ *j);
 442 static void aec_stop(IXJ *j);
 443 static void ixj_ringback(IXJ *j);
 444 static void ixj_busytone(IXJ *j);
 445 static void ixj_dialtone(IXJ *j);
 446 static void ixj_cpt_stop(IXJ *j);
 447 static char daa_int_read(IXJ *j);
 448 static char daa_CR_read(IXJ *j, int cr);
 449 static int daa_set_mode(IXJ *j, int mode);
 450 static int ixj_linetest(IXJ *j);
 451 static int ixj_daa_write(IXJ *j);
 452 static int ixj_daa_cid_read(IXJ *j);
 453 static void DAA_Coeff_US(IXJ *j);
 454 static void DAA_Coeff_UK(IXJ *j);
 455 static void DAA_Coeff_France(IXJ *j);
 456 static void DAA_Coeff_Germany(IXJ *j);
 457 static void DAA_Coeff_Australia(IXJ *j);
 458 static void DAA_Coeff_Japan(IXJ *j);
 459 static int ixj_init_filter(IXJ *j, IXJ_FILTER * jf);
 460 static int ixj_init_filter_raw(IXJ *j, IXJ_FILTER_RAW * jfr);
 461 static int ixj_init_tone(IXJ *j, IXJ_TONE * ti);
 462 static int ixj_build_cadence(IXJ *j, IXJ_CADENCE __user * cp);
 463 static int ixj_build_filter_cadence(IXJ *j, IXJ_FILTER_CADENCE __user * cp);
 464 /* Serial Control Interface funtions */
 465 static int SCI_Control(IXJ *j, int control);
 466 static int SCI_Prepare(IXJ *j);
 467 static int SCI_WaitHighSCI(IXJ *j);
 468 static int SCI_WaitLowSCI(IXJ *j);
 469 static DWORD PCIEE_GetSerialNumber(WORD wAddress);
 470 static int ixj_PCcontrol_wait(IXJ *j);
 471 static void ixj_pre_cid(IXJ *j);
 472 static void ixj_write_cid(IXJ *j);
 473 static void ixj_write_cid_bit(IXJ *j, int bit);
 474 static int set_base_frame(IXJ *j, int size);
 475 static int set_play_codec(IXJ *j, int rate);
 476 static void set_rec_depth(IXJ *j, int depth);
 477 static int ixj_mixer(long val, IXJ *j);
 478
 479 /************************************************************************
 480 CT8020/CT8021 Host Programmers Model
 481 Host address    Function                                        Access
 482 DSPbase +
 483 0-1             Aux Software Status Register (reserved)         Read Only
 484 2-3             Software Status Register                        Read Only
 485 4-5             Aux Software Control Register (reserved)        Read Write
 486 6-7             Software Control Register                       Read Write
 487 8-9             Hardware Status Register                        Read Only
 488 A-B             Hardware Control Register                       Read Write
 489 C-D Host Transmit (Write) Data Buffer Access Port (buffer input)Write Only
 490 E-F Host Receive (Read) Data Buffer Access Port (buffer input)  Read Only
 491 ************************************************************************/
 492
 493 static inline void ixj_read_HSR(IXJ *j)
 494 {
 495         j->hsr.bytes.low = inb_p(j->DSPbase + 8);
 496         j->hsr.bytes.high = inb_p(j->DSPbase + 9);
 497 }
 498
 499 static inline int IsControlReady(IXJ *j)
 500 {
 501         ixj_read_HSR(j);
 502         return j->hsr.bits.controlrdy ? 1 : 0;
 503 }
 504
 505 static inline int IsPCControlReady(IXJ *j)
 506 {
 507         j->pccr1.byte = inb_p(j->XILINXbase + 3);
 508         return j->pccr1.bits.crr ? 1 : 0;
 509 }
 510
 511 static inline int IsStatusReady(IXJ *j)
 512 {
 513         ixj_read_HSR(j);
 514         return j->hsr.bits.statusrdy ? 1 : 0;
 515 }
 516
 517 static inline int IsRxReady(IXJ *j)
 518 {
 519         ixj_read_HSR(j);
 520         ixj_perfmon(j->rxreadycheck);
 521         return j->hsr.bits.rxrdy ? 1 : 0;
 522 }
 523
 524 static inline int IsTxReady(IXJ *j)
 525 {
 526         ixj_read_HSR(j);
 527         ixj_perfmon(j->txreadycheck);
 528         return j->hsr.bits.txrdy ? 1 : 0;
 529 }
 530
 531 static inline void set_play_volume(IXJ *j, int volume)
 532 {
 533         if (ixjdebug & 0x0002)
 534                 printk(KERN_INFO "IXJ: /dev/phone%d Setting Play Volume to 0x%4.4x\n", j->board, volume);
 535         ixj_WriteDSPCommand(0xCF02, j);
 536         ixj_WriteDSPCommand(volume, j);
 537 }
 538
 539 static int set_play_volume_linear(IXJ *j, int volume)
 540 {
 541         int newvolume, dspplaymax;
 542
 543         if (ixjdebug & 0x0002)
 544                 printk(KERN_INFO "IXJ: /dev/phone %d Setting Linear Play Volume to 0x%4.4x\n", j->board, volume);
 545         if(volume > 100 || volume < 0) {
 546                 return -1;
 547         }
 548
 549         /* This should normalize the perceived volumes between the different cards caused by differences in the hardware */
 550         switch (j->cardtype) {
 551         case QTI_PHONEJACK:
 552                 dspplaymax = 0x380;
 553                 break;
 554         case QTI_LINEJACK:
 555                 if(j->port == PORT_PSTN) {
 556                         dspplaymax = 0x48;
 557                 } else {
 558                         dspplaymax = 0x100;
 559                 }
 560                 break;
 561         case QTI_PHONEJACK_LITE:
 562                 dspplaymax = 0x380;
 563                 break;
 564         case QTI_PHONEJACK_PCI:
 565                 dspplaymax = 0x6C;
 566                 break;
 567         case QTI_PHONECARD:
 568                 dspplaymax = 0x50;
 569                 break;
 570         default:
 571                 return -1;
 572         }
 573         newvolume = (dspplaymax * volume) / 100;
 574         set_play_volume(j, newvolume);
 575         return 0;
 576 }
 577
 578 static inline void set_play_depth(IXJ *j, int depth)
 579 {
 580         if (depth > 60)
 581                 depth = 60;
 582         if (depth < 0)
 583                 depth = 0;
 584         ixj_WriteDSPCommand(0x5280 + depth, j);
 585 }
 586
 587 static inline int get_play_volume(IXJ *j)
 588 {
 589         ixj_WriteDSPCommand(0xCF00, j);
 590         return j->ssr.high << 8 | j->ssr.low;
 591 }
 592
 593 static int get_play_volume_linear(IXJ *j)
 594 {
 595         int volume, newvolume, dspplaymax;
 596
 597         /* This should normalize the perceived volumes between the different cards caused by differences in the hardware */
 598         switch (j->cardtype) {
 599         case QTI_PHONEJACK:
 600                 dspplaymax = 0x380;
 601                 break;
 602         case QTI_LINEJACK:
 603                 if(j->port == PORT_PSTN) {
 604                         dspplaymax = 0x48;
 605                 } else {
 606                         dspplaymax = 0x100;
 607                 }
 608                 break;
 609         case QTI_PHONEJACK_LITE:
 610                 dspplaymax = 0x380;
 611                 break;
 612         case QTI_PHONEJACK_PCI:
 613                 dspplaymax = 0x6C;
 614                 break;
 615         case QTI_PHONECARD:
 616                 dspplaymax = 100;
 617                 break;
 618         default:
 619                 return -1;
 620         }
 621         volume = get_play_volume(j);
 622         newvolume = (volume * 100) / dspplaymax;
 623         if(newvolume > 100)
 624                 newvolume = 100;
 625         return newvolume;
 626 }
 627
 628 static inline BYTE SLIC_GetState(IXJ *j)
 629 {
 630         if (j->cardtype == QTI_PHONECARD) {
 631                 j->pccr1.byte = 0;
 632                 j->psccr.bits.dev = 3;
 633                 j->psccr.bits.rw = 1;
 634                 outw_p(j->psccr.byte << 8, j->XILINXbase + 0x00);
 635                 ixj_PCcontrol_wait(j);
 636                 j->pslic.byte = inw_p(j->XILINXbase + 0x00) & 0xFF;
 637                 ixj_PCcontrol_wait(j);
 638                 if (j->pslic.bits.powerdown)
 639                         return PLD_SLIC_STATE_OC;
 640                 else if (!j->pslic.bits.ring0 && !j->pslic.bits.ring1)
 641                         return PLD_SLIC_STATE_ACTIVE;
 642                 else
 643                         return PLD_SLIC_STATE_RINGING;
 644         } else {
 645                 j->pld_slicr.byte = inb_p(j->XILINXbase + 0x01);
 646         }
 647         return j->pld_slicr.bits.state;
 648 }
 649
 650 static bool SLIC_SetState(BYTE byState, IXJ *j)
 651 {
 652         bool fRetVal = false;
 653
 654         if (j->cardtype == QTI_PHONECARD) {
 655                 if (j->flags.pcmciasct) {
 656                         switch (byState) {
 657                         case PLD_SLIC_STATE_TIPOPEN:
 658                         case PLD_SLIC_STATE_OC:
 659                                 j->pslic.bits.powerdown = 1;
 660                                 j->pslic.bits.ring0 = j->pslic.bits.ring1 = 0;
 661                                 fRetVal = true;
 662                                 break;
 663                         case PLD_SLIC_STATE_RINGING:
 664                                 if (j->readers || j->writers) {
 665                                         j->pslic.bits.powerdown = 0;
 666                                         j->pslic.bits.ring0 = 1;
 667                                         j->pslic.bits.ring1 = 0;
 668                                         fRetVal = true;
 669                                 }
 670                                 break;
 671                         case PLD_SLIC_STATE_OHT:        /* On-hook transmit */
 672
 673                         case PLD_SLIC_STATE_STANDBY:
 674                         case PLD_SLIC_STATE_ACTIVE:
 675                                 if (j->readers || j->writers) {
 676                                         j->pslic.bits.powerdown = 0;
 677                                 } else {
 678                                         j->pslic.bits.powerdown = 1;
 679                                 }
 680                                 j->pslic.bits.ring0 = j->pslic.bits.ring1 = 0;
 681                                 fRetVal = true;
 682                                 break;
 683                         case PLD_SLIC_STATE_APR:        /* Active polarity reversal */
 684
 685                         case PLD_SLIC_STATE_OHTPR:      /* OHT polarity reversal */
 686
 687                         default:
 688                                 fRetVal = false;
 689                                 break;
 690                         }
 691                         j->psccr.bits.dev = 3;
 692                         j->psccr.bits.rw = 0;
 693                         outw_p(j->psccr.byte << 8 | j->pslic.byte, j->XILINXbase + 0x00);
 694                         ixj_PCcontrol_wait(j);
 695                 }
 696         } else {
 697                 /* Set the C1, C2, C3 & B2EN signals. */
 698                 switch (byState) {
 699                 case PLD_SLIC_STATE_OC:
 700                         j->pld_slicw.bits.c1 = 0;
 701                         j->pld_slicw.bits.c2 = 0;
 702                         j->pld_slicw.bits.c3 = 0;
 703                         j->pld_slicw.bits.b2en = 0;
 704                         outb_p(j->pld_slicw.byte, j->XILINXbase + 0x01);
 705                         fRetVal = true;
 706                         break;
 707                 case PLD_SLIC_STATE_RINGING:
 708                         j->pld_slicw.bits.c1 = 1;
 709                         j->pld_slicw.bits.c2 = 0;
 710                         j->pld_slicw.bits.c3 = 0;
 711                         j->pld_slicw.bits.b2en = 1;
 712                         outb_p(j->pld_slicw.byte, j->XILINXbase + 0x01);
 713                         fRetVal = true;
 714                         break;
 715                 case PLD_SLIC_STATE_ACTIVE:
 716                         j->pld_slicw.bits.c1 = 0;
 717                         j->pld_slicw.bits.c2 = 1;
 718                         j->pld_slicw.bits.c3 = 0;
 719                         j->pld_slicw.bits.b2en = 0;
 720                         outb_p(j->pld_slicw.byte, j->XILINXbase + 0x01);
 721                         fRetVal = true;
 722                         break;
 723                 case PLD_SLIC_STATE_OHT:        /* On-hook transmit */
 724
 725                         j->pld_slicw.bits.c1 = 1;
 726                         j->pld_slicw.bits.c2 = 1;
 727                         j->pld_slicw.bits.c3 = 0;
 728                         j->pld_slicw.bits.b2en = 0;
 729                         outb_p(j->pld_slicw.byte, j->XILINXbase + 0x01);
 730                         fRetVal = true;
 731                         break;
 732                 case PLD_SLIC_STATE_TIPOPEN:
 733                         j->pld_slicw.bits.c1 = 0;
 734                         j->pld_slicw.bits.c2 = 0;
 735                         j->pld_slicw.bits.c3 = 1;
 736                         j->pld_slicw.bits.b2en = 0;
 737                         outb_p(j->pld_slicw.byte, j->XILINXbase + 0x01);
 738                         fRetVal = true;
 739                         break;
 740                 case PLD_SLIC_STATE_STANDBY:
 741                         j->pld_slicw.bits.c1 = 1;
 742                         j->pld_slicw.bits.c2 = 0;
 743                         j->pld_slicw.bits.c3 = 1;
 744                         j->pld_slicw.bits.b2en = 1;
 745                         outb_p(j->pld_slicw.byte, j->XILINXbase + 0x01);
 746                         fRetVal = true;
 747                         break;
 748                 case PLD_SLIC_STATE_APR:        /* Active polarity reversal */
 749
 750                         j->pld_slicw.bits.c1 = 0;
 751                         j->pld_slicw.bits.c2 = 1;
 752                         j->pld_slicw.bits.c3 = 1;
 753                         j->pld_slicw.bits.b2en = 0;
 754                         outb_p(j->pld_slicw.byte, j->XILINXbase + 0x01);
 755                         fRetVal = true;
 756                         break;
 757                 case PLD_SLIC_STATE_OHTPR:      /* OHT polarity reversal */
 758
 759                         j->pld_slicw.bits.c1 = 1;
 760                         j->pld_slicw.bits.c2 = 1;
 761                         j->pld_slicw.bits.c3 = 1;
 762                         j->pld_slicw.bits.b2en = 0;
 763                         outb_p(j->pld_slicw.byte, j->XILINXbase + 0x01);
 764                         fRetVal = true;
 765                         break;
 766                 default:
 767                         fRetVal = false;
 768                         break;
 769                 }
 770         }
 771
 772         return fRetVal;
 773 }
 774
 775 static int ixj_wink(IXJ *j)
 776 {
 777         BYTE slicnow;
 778
 779         slicnow = SLIC_GetState(j);
 780
 781         j->pots_winkstart = jiffies;
 782         SLIC_SetState(PLD_SLIC_STATE_OC, j);
 783
 784         msleep(jiffies_to_msecs(j->winktime));
 785
 786         SLIC_SetState(slicnow, j);
 787         return 0;
 788 }
 789
 790 static void ixj_init_timer(IXJ *j)
 791 {
 792         init_timer(&j->timer);
 793         j->timer.function = ixj_timeout;
 794         j->timer.data = (unsigned long)j;
 795 }
 796
 797 static void ixj_add_timer(IXJ *j)
 798 {
 799         j->timer.expires = jiffies + (hertz / samplerate);
 800         add_timer(&j->timer);
 801 }
 802
 803 static void ixj_tone_timeout(IXJ *j)
 804 {
 805         IXJ_TONE ti;
 806
 807         j->tone_state++;
 808         if (j->tone_state == 3) {
 809                 j->tone_state = 0;
 810                 if (j->cadence_t) {
 811                         j->tone_cadence_state++;
 812                         if (j->tone_cadence_state >= j->cadence_t->elements_used) {
 813                                 switch (j->cadence_t->termination) {
 814                                 case PLAY_ONCE:
 815                                         ixj_cpt_stop(j);
 816                                         break;
 817                                 case REPEAT_LAST_ELEMENT:
 818                                         j->tone_cadence_state--;
 819                                         ixj_play_tone(j, j->cadence_t->ce[j->tone_cadence_state].index);
 820                                         break;
 821                                 case REPEAT_ALL:
 822                                         j->tone_cadence_state = 0;
 823                                         if (j->cadence_t->ce[j->tone_cadence_state].freq0) {
 824                                                 ti.tone_index = j->cadence_t->ce[j->tone_cadence_state].index;
 825                                                 ti.freq0 = j->cadence_t->ce[j->tone_cadence_state].freq0;
 826                                                 ti.gain0 = j->cadence_t->ce[j->tone_cadence_state].gain0;
 827                                                 ti.freq1 = j->cadence_t->ce[j->tone_cadence_state].freq1;
 828                                                 ti.gain1 = j->cadence_t->ce[j->tone_cadence_state].gain1;
 829                                                 ixj_init_tone(j, &ti);
 830                                         }
 831                                         ixj_set_tone_on(j->cadence_t->ce[0].tone_on_time, j);
 832                                         ixj_set_tone_off(j->cadence_t->ce[0].tone_off_time, j);
 833                                         ixj_play_tone(j, j->cadence_t->ce[0].index);
 834                                         break;
 835                                 }
 836                         } else {
 837                                 if (j->cadence_t->ce[j->tone_cadence_state].gain0) {
 838                                         ti.tone_index = j->cadence_t->ce[j->tone_cadence_state].index;
 839                                         ti.freq0 = j->cadence_t->ce[j->tone_cadence_state].freq0;
 840                                         ti.gain0 = j->cadence_t->ce[j->tone_cadence_state].gain0;
 841                                         ti.freq1 = j->cadence_t->ce[j->tone_cadence_state].freq1;
 842                                         ti.gain1 = j->cadence_t->ce[j->tone_cadence_state].gain1;
 843                                         ixj_init_tone(j, &ti);
 844                                 }
 845                                 ixj_set_tone_on(j->cadence_t->ce[j->tone_cadence_state].tone_on_time, j);
 846                                 ixj_set_tone_off(j->cadence_t->ce[j->tone_cadence_state].tone_off_time, j);
 847                                 ixj_play_tone(j, j->cadence_t->ce[j->tone_cadence_state].index);
 848                         }
 849                 }
 850         }
 851 }
 852
 853 static inline void ixj_kill_fasync(IXJ *j, IXJ_SIGEVENT event, int dir)
 854 {
 855         if(j->ixj_signals[event]) {
 856                 if(ixjdebug & 0x0100)
 857                         printk("Sending signal for event %d\n", event);
 858                         /* Send apps notice of change */
 859                 /* see config.h for macro definition */
 860                 kill_fasync(&(j->async_queue), j->ixj_signals[event], dir);
 861         }
 862 }
 863
 864 static void ixj_pstn_state(IXJ *j)
 865 {
 866         int var;
 867         union XOPXR0 XR0, daaint;
 868
 869         var = 10;
 870
 871         XR0.reg = j->m_DAAShadowRegs.XOP_REGS.XOP.xr0.reg;
 872         daaint.reg = 0;
 873         XR0.bitreg.RMR = j->m_DAAShadowRegs.SOP_REGS.SOP.cr1.bitreg.RMR;
 874
 875         j->pld_scrr.byte = inb_p(j->XILINXbase);
 876         if (j->pld_scrr.bits.daaflag) {
 877                 daa_int_read(j);
 878                 if(j->m_DAAShadowRegs.XOP_REGS.XOP.xr0.bitreg.RING) {
 879                         if(time_after(jiffies, j->pstn_sleeptil) && !(j->flags.pots_pstn && j->hookstate)) {
 880                                 daaint.bitreg.RING = 1;
 881                                 if(ixjdebug & 0x0008) {
 882                                         printk(KERN_INFO "IXJ DAA Ring Interrupt /dev/phone%d at %ld\n", j->board, jiffies);
 883                                 }
 884                         } else {
 885                                 daa_set_mode(j, SOP_PU_RESET);
 886                         }
 887                 }
 888                 if(j->m_DAAShadowRegs.XOP_REGS.XOP.xr0.bitreg.Caller_ID) {
 889                         daaint.bitreg.Caller_ID = 1;
 890                         j->pstn_cid_intr = 1;
 891                         j->pstn_cid_received = jiffies;
 892                         if(ixjdebug & 0x0008) {
 893                                 printk(KERN_INFO "IXJ DAA Caller_ID Interrupt /dev/phone%d at %ld\n", j->board, jiffies);
 894                         }
 895                 }
 896                 if(j->m_DAAShadowRegs.XOP_REGS.XOP.xr0.bitreg.Cadence) {
 897                         daaint.bitreg.Cadence = 1;
 898                         if(ixjdebug & 0x0008) {
 899                                 printk(KERN_INFO "IXJ DAA Cadence Interrupt /dev/phone%d at %ld\n", j->board, jiffies);
 900                         }
 901                 }
 902                 if(j->m_DAAShadowRegs.XOP_REGS.XOP.xr0.bitreg.VDD_OK != XR0.bitreg.VDD_OK) {
 903                         daaint.bitreg.VDD_OK = 1;
 904                         daaint.bitreg.SI_0 = j->m_DAAShadowRegs.XOP_REGS.XOP.xr0.bitreg.VDD_OK;
 905                 }
 906         }
 907         daa_CR_read(j, 1);
 908         if(j->m_DAAShadowRegs.SOP_REGS.SOP.cr1.bitreg.RMR != XR0.bitreg.RMR && time_after(jiffies, j->pstn_sleeptil) && !(j->flags.pots_pstn && j->hookstate)) {
 909                 daaint.bitreg.RMR = 1;
 910                 daaint.bitreg.SI_1 = j->m_DAAShadowRegs.SOP_REGS.SOP.cr1.bitreg.RMR;
 911                 if(ixjdebug & 0x0008) {
 912                         printk(KERN_INFO "IXJ DAA RMR /dev/phone%d was %s for %ld\n", j->board, XR0.bitreg.RMR?"on":"off", jiffies - j->pstn_last_rmr);
 913                 }
 914                 j->pstn_prev_rmr = j->pstn_last_rmr;
 915                 j->pstn_last_rmr = jiffies;
 916         }
 917         switch(j->daa_mode) {
 918                 case SOP_PU_SLEEP:
 919                         if (daaint.bitreg.RING) {
 920                                 if (!j->flags.pstn_ringing) {
 921                                         if (j->daa_mode != SOP_PU_RINGING) {
 922                                                 j->pstn_ring_int = jiffies;
 923                                                 daa_set_mode(j, SOP_PU_RINGING);
 924                                         }
 925                                 }
 926                         }
 927                         break;
 928                 case SOP_PU_RINGING:
 929                         if (daaint.bitreg.RMR) {
 930                                 if (ixjdebug & 0x0008) {
 931                                         printk(KERN_INFO "IXJ Ring Cadence a state = %d /dev/phone%d at %ld\n", j->cadence_f[4].state, j->board, jiffies);
 932                                 }
 933                                 if (daaint.bitreg.SI_1) {                /* Rising edge of RMR */
 934                                         j->flags.pstn_rmr = 1;
 935                                         j->pstn_ring_start = jiffies;
 936                                         j->pstn_ring_stop = 0;
 937                                         j->ex.bits.pstn_ring = 0;
 938                                         if (j->cadence_f[4].state == 0) {
 939                                                 j->cadence_f[4].state = 1;
 940                                                 j->cadence_f[4].on1min = jiffies + (long)((j->cadence_f[4].on1 * hertz * (100 - var)) / 10000);
 941                                                 j->cadence_f[4].on1dot = jiffies + (long)((j->cadence_f[4].on1 * hertz * (100)) / 10000);
 942                                                 j->cadence_f[4].on1max = jiffies + (long)((j->cadence_f[4].on1 * hertz * (100 + var)) / 10000);
 943                                         } else if (j->cadence_f[4].state == 2) {
 944                                                 if((time_after(jiffies, j->cadence_f[4].off1min) &&
 945                                                     time_before(jiffies, j->cadence_f[4].off1max))) {
 946                                                         if (j->cadence_f[4].on2) {
 947                                                                 j->cadence_f[4].state = 3;
 948                                                                 j->cadence_f[4].on2min = jiffies + (long)((j->cadence_f[4].on2 * (hertz * (100 - var)) / 10000));
 949                                                                 j->cadence_f[4].on2dot = jiffies + (long)((j->cadence_f[4].on2 * (hertz * (100)) / 10000));
 950                                                                 j->cadence_f[4].on2max = jiffies + (long)((j->cadence_f[4].on2 * (hertz * (100 + var)) / 10000));
 951                                                         } else {
 952                                                                 j->cadence_f[4].state = 7;
 953                                                         }
 954                                                 } else {
 955                                                         if (ixjdebug & 0x0008) {
 956                                                                 printk(KERN_INFO "IXJ Ring Cadence fail state = %d /dev/phone%d at %ld should be %d\n",
 957                                                                                 j->cadence_f[4].state, j->board, jiffies - j->pstn_prev_rmr,
 958                                                                                 j->cadence_f[4].off1);
 959                                                         }
 960                                                         j->cadence_f[4].state = 0;
 961                                                 }
 962                                         } else if (j->cadence_f[4].state == 4) {
 963                                                 if((time_after(jiffies, j->cadence_f[4].off2min) &&
 964                                                     time_before(jiffies, j->cadence_f[4].off2max))) {
 965                                                         if (j->cadence_f[4].on3) {
 966                                                                 j->cadence_f[4].state = 5;
 967                                                                 j->cadence_f[4].on3min = jiffies + (long)((j->cadence_f[4].on3 * (hertz * (100 - var)) / 10000));
 968                                                                 j->cadence_f[4].on3dot = jiffies + (long)((j->cadence_f[4].on3 * (hertz * (100)) / 10000));
 969                                                                 j->cadence_f[4].on3max = jiffies + (long)((j->cadence_f[4].on3 * (hertz * (100 + var)) / 10000));
 970                                                         } else {
 971                                                                 j->cadence_f[4].state = 7;
 972                                                         }
 973                                                 } else {
 974                                                         if (ixjdebug & 0x0008) {
 975                                                                 printk(KERN_INFO "IXJ Ring Cadence fail state = %d /dev/phone%d at %ld should be %d\n",
 976                                                                                 j->cadence_f[4].state, j->board, jiffies - j->pstn_prev_rmr,
 977                                                                                 j->cadence_f[4].off2);
 978                                                         }
 979                                                         j->cadence_f[4].state = 0;
 980                                                 }
 981                                         } else if (j->cadence_f[4].state == 6) {
 982                                                 if((time_after(jiffies, j->cadence_f[4].off3min) &&
 983                                                     time_before(jiffies, j->cadence_f[4].off3max))) {
 984                                                         j->cadence_f[4].state = 7;
 985                                                 } else {
 986                                                         if (ixjdebug & 0x0008) {
 987                                                                 printk(KERN_INFO "IXJ Ring Cadence fail state = %d /dev/phone%d at %ld should be %d\n",
 988                                                                                 j->cadence_f[4].state, j->board, jiffies - j->pstn_prev_rmr,
 989                                                                                 j->cadence_f[4].off3);
 990                                                         }
 991                                                         j->cadence_f[4].state = 0;
 992                                                 }
 993                                         } else {
 994                                                 j->cadence_f[4].state = 0;
 995                                         }
 996                                 } else {                                /* Falling edge of RMR */
 997                                         j->pstn_ring_start = 0;
 998                                         j->pstn_ring_stop = jiffies;
 999                                         if (j->cadence_f[4].state == 1) {
1000                                                 if(!j->cadence_f[4].on1) {
1001                                                         j->cadence_f[4].state = 7;
1002                                                 } else if((time_after(jiffies, j->cadence_f[4].on1min) &&
1003                                                   time_before(jiffies, j->cadence_f[4].on1max))) {
1004                                                         if (j->cadence_f[4].off1) {
1005                                                                 j->cadence_f[4].state = 2;
1006                                                                 j->cadence_f[4].off1min = jiffies + (long)((j->cadence_f[4].off1 * (hertz * (100 - var)) / 10000));
1007                                                                 j->cadence_f[4].off1dot = jiffies + (long)((j->cadence_f[4].off1 * (hertz * (100)) / 10000));
1008                                                                 j->cadence_f[4].off1max = jiffies + (long)((j->cadence_f[4].off1 * (hertz * (100 + var)) / 10000));
1009                                                         } else {
1010                                                                 j->cadence_f[4].state = 7;
1011                                                         }
1012                                                 } else {
1013                                                         if (ixjdebug & 0x0008) {
1014                                                                 printk(KERN_INFO "IXJ Ring Cadence fail state = %d /dev/phone%d at %ld should be %d\n",
1015                                                                                 j->cadence_f[4].state, j->board, jiffies - j->pstn_prev_rmr,
1016                                                                                 j->cadence_f[4].on1);
1017                                                         }
1018                                                         j->cadence_f[4].state = 0;
1019                                                 }
1020                                         } else if (j->cadence_f[4].state == 3) {
1021                                                 if((time_after(jiffies, j->cadence_f[4].on2min) &&
1022                                                     time_before(jiffies, j->cadence_f[4].on2max))) {
1023                                                         if (j->cadence_f[4].off2) {
1024                                                                 j->cadence_f[4].state = 4;
1025                                                                 j->cadence_f[4].off2min = jiffies + (long)((j->cadence_f[4].off2 * (hertz * (100 - var)) / 10000));
1026                                                                 j->cadence_f[4].off2dot = jiffies + (long)((j->cadence_f[4].off2 * (hertz * (100)) / 10000));
1027                                                                 j->cadence_f[4].off2max = jiffies + (long)((j->cadence_f[4].off2 * (hertz * (100 + var)) / 10000));
1028                                                         } else {
1029                                                                 j->cadence_f[4].state = 7;
1030                                                         }
1031                                                 } else {
1032                                                         if (ixjdebug & 0x0008) {
1033                                                                 printk(KERN_INFO "IXJ Ring Cadence fail state = %d /dev/phone%d at %ld should be %d\n",
1034                                                                                 j->cadence_f[4].state, j->board, jiffies - j->pstn_prev_rmr,
1035                                                                                 j->cadence_f[4].on2);
1036                                                         }
1037                                                         j->cadence_f[4].state = 0;
1038                                                 }
1039                                         } else if (j->cadence_f[4].state == 5) {
1040                                                 if((time_after(jiffies, j->cadence_f[4].on3min) &&
1041                                                     time_before(jiffies, j->cadence_f[4].on3max))) {
1042                                                         if (j->cadence_f[4].off3) {
1043                                                                 j->cadence_f[4].state = 6;
1044                                                                 j->cadence_f[4].off3min = jiffies + (long)((j->cadence_f[4].off3 * (hertz * (100 - var)) / 10000));
1045                                                                 j->cadence_f[4].off3dot = jiffies + (long)((j->cadence_f[4].off3 * (hertz * (100)) / 10000));
1046                                                                 j->cadence_f[4].off3max = jiffies + (long)((j->cadence_f[4].off3 * (hertz * (100 + var)) / 10000));
1047                                                         } else {
1048                                                                 j->cadence_f[4].state = 7;
1049                                                         }
1050                                                 } else {
1051                                                         j->cadence_f[4].state = 0;
1052                                                 }
1053                                         } else {
1054                                                 if (ixjdebug & 0x0008) {
1055                                                         printk(KERN_INFO "IXJ Ring Cadence fail state = %d /dev/phone%d at %ld should be %d\n",
1056                                                                         j->cadence_f[4].state, j->board, jiffies - j->pstn_prev_rmr,
1057                                                                         j->cadence_f[4].on3);
1058                                                 }
1059                                                 j->cadence_f[4].state = 0;
1060                                         }
1061                                 }
1062                                 if (ixjdebug & 0x0010) {
1063                                         printk(KERN_INFO "IXJ Ring Cadence b state = %d /dev/phone%d at %ld\n", j->cadence_f[4].state, j->board, jiffies);
1064                                 }
1065                                 if (ixjdebug & 0x0010) {
1066                                         switch(j->cadence_f[4].state) {
1067                                                 case 1:
1068                                                         printk(KERN_INFO "IXJ /dev/phone%d Next Ring Cadence state at %u min %ld - %ld - max %ld\n", j->board,
1069                                                 j->cadence_f[4].on1, j->cadence_f[4].on1min, j->cadence_f[4].on1dot, j->cadence_f[4].on1max);
1070                                                         break;
1071                                                 case 2:
1072                                                         printk(KERN_INFO "IXJ /dev/phone%d Next Ring Cadence state at %u min %ld - %ld - max %ld\n", j->board,
1073                                                 j->cadence_f[4].off1, j->cadence_f[4].off1min, j->cadence_f[4].off1dot, j->cadence_f[4].off1max);
1074                                                         break;
1075                                                 case 3:
1076                                                         printk(KERN_INFO "IXJ /dev/phone%d Next Ring Cadence state at %u min %ld - %ld - max %ld\n", j->board,
1077                                                 j->cadence_f[4].on2, j->cadence_f[4].on2min, j->cadence_f[4].on2dot, j->cadence_f[4].on2max);
1078                                                         break;
1079                                                 case 4:
1080                                                         printk(KERN_INFO "IXJ /dev/phone%d Next Ring Cadence state at %u min %ld - %ld - max %ld\n", j->board,
1081                                                 j->cadence_f[4].off2, j->cadence_f[4].off2min, j->cadence_f[4].off2dot, j->cadence_f[4].off2max);
1082                                                         break;
1083                                                 case 5:
1084                                                         printk(KERN_INFO "IXJ /dev/phone%d Next Ring Cadence state at %u min %ld - %ld - max %ld\n", j->board,
1085                                                 j->cadence_f[4].on3, j->cadence_f[4].on3min, j->cadence_f[4].on3dot, j->cadence_f[4].on3max);
1086                                                         break;
1087                                                 case 6:
1088                                                         printk(KERN_INFO "IXJ /dev/phone%d Next Ring Cadence state at %u min %ld - %ld - max %ld\n", j->board,
1089                                                 j->cadence_f[4].off3, j->cadence_f[4].off3min, j->cadence_f[4].off3dot, j->cadence_f[4].off3max);
1090                                                         break;
1091                                         }
1092                                 }
1093                         }
1094                         if (j->cadence_f[4].state == 7) {
1095                                 j->cadence_f[4].state = 0;
1096                                 j->pstn_ring_stop = jiffies;
1097                                 j->ex.bits.pstn_ring = 1;
1098                                 ixj_kill_fasync(j, SIG_PSTN_RING, POLL_IN);
1099                                 if(ixjdebug & 0x0008) {
1100                                         printk(KERN_INFO "IXJ Ring int set /dev/phone%d at %ld\n", j->board, jiffies);
1101                                 }
1102                         }
1103                         if((j->pstn_ring_int != 0 && time_after(jiffies, j->pstn_ring_int + (hertz * 5)) && !j->flags.pstn_rmr) ||
1104                            (j->pstn_ring_stop != 0 && time_after(jiffies, j->pstn_ring_stop + (hertz * 5)))) {
1105                                 if(ixjdebug & 0x0008) {
1106                                         printk("IXJ DAA no ring in 5 seconds /dev/phone%d at %ld\n", j->board, jiffies);
1107                                         printk("IXJ DAA pstn ring int /dev/phone%d at %ld\n", j->board, j->pstn_ring_int);
1108                                         printk("IXJ DAA pstn ring stop /dev/phone%d at %ld\n", j->board, j->pstn_ring_stop);
1109                                 }
1110                                 j->pstn_ring_stop = j->pstn_ring_int = 0;
1111                                 daa_set_mode(j, SOP_PU_SLEEP);
1112                         }
1113                         outb_p(j->pld_scrw.byte, j->XILINXbase);
1114                         if (j->pstn_cid_intr && time_after(jiffies, j->pstn_cid_received + hertz)) {
1115                                 ixj_daa_cid_read(j);
1116                                 j->ex.bits.caller_id = 1;
1117                                 ixj_kill_fasync(j, SIG_CALLER_ID, POLL_IN);
1118                                 j->pstn_cid_intr = 0;
1119                         }
1120                         if (daaint.bitreg.Cadence) {
1121                                 if(ixjdebug & 0x0008) {
1122                                         printk("IXJ DAA Cadence interrupt going to sleep /dev/phone%d\n", j->board);
1123                                 }
1124                                 daa_set_mode(j, SOP_PU_SLEEP);
1125                                 j->ex.bits.pstn_ring = 0;
1126                         }
1127                         break;
1128                 case SOP_PU_CONVERSATION:
1129                         if (daaint.bitreg.VDD_OK) {
1130                                 if(!daaint.bitreg.SI_0) {
1131                                         if (!j->pstn_winkstart) {
1132                                                 if(ixjdebug & 0x0008) {
1133                                                         printk("IXJ DAA possible wink /dev/phone%d %ld\n", j->board, jiffies);
1134                                                 }
1135                                                 j->pstn_winkstart = jiffies;
1136                                         }
1137                                 } else {
1138                                         if (j->pstn_winkstart) {
1139                                                 if(ixjdebug & 0x0008) {
1140                                                         printk("IXJ DAA possible wink end /dev/phone%d %ld\n", j->board, jiffies);
1141                                                 }
1142                                                 j->pstn_winkstart = 0;
1143                                         }
1144                                 }
1145                         }
1146                         if (j->pstn_winkstart && time_after(jiffies, j->pstn_winkstart + ((hertz * j->winktime) / 1000))) {
1147                                 if(ixjdebug & 0x0008) {
1148                                         printk("IXJ DAA wink detected going to sleep /dev/phone%d %ld\n", j->board, jiffies);
1149                                 }
1150                                 daa_set_mode(j, SOP_PU_SLEEP);
1151                                 j->pstn_winkstart = 0;
1152                                 j->ex.bits.pstn_wink = 1;
1153                                 ixj_kill_fasync(j, SIG_PSTN_WINK, POLL_IN);
1154                         }
1155                         break;
1156         }
1157 }
1158
1159 static void ixj_timeout(unsigned long ptr)
1160 {
1161         int board;
1162         unsigned long jifon;
1163         IXJ *j = (IXJ *)ptr;
1164         board = j->board;
1165
1166         if (j->DSPbase && atomic_read(&j->DSPWrite) == 0 && test_and_set_bit(board, (void *)&j->busyflags) == 0) {
1167                 ixj_perfmon(j->timerchecks);
1168                 j->hookstate = ixj_hookstate(j);
1169                 if (j->tone_state) {
1170                         if (!(j->hookstate)) {
1171                                 ixj_cpt_stop(j);
1172                                 if (j->m_hook) {
1173                                         j->m_hook = 0;
1174                                         j->ex.bits.hookstate = 1;
1175                                         ixj_kill_fasync(j, SIG_HOOKSTATE, POLL_IN);
1176                                 }
1177                                 clear_bit(board, &j->busyflags);
1178                                 ixj_add_timer(j);
1179                                 return;
1180                         }
1181                         if (j->tone_state == 1)
1182                                 jifon = ((hertz * j->tone_on_time) * 25 / 100000);
1183                         else
1184                                 jifon = ((hertz * j->tone_on_time) * 25 / 100000) + ((hertz * j->tone_off_time) * 25 / 100000);
1185                         if (time_before(jiffies, j->tone_start_jif + jifon)) {
1186                                 if (j->tone_state == 1) {
1187                                         ixj_play_tone(j, j->tone_index);
1188                                         if (j->dsp.low == 0x20) {
1189                                                 clear_bit(board, &j->busyflags);
1190                                                 ixj_add_timer(j);
1191                                                 return;
1192                                         }
1193                                 } else {
1194                                         ixj_play_tone(j, 0);
1195                                         if (j->dsp.low == 0x20) {
1196                                                 clear_bit(board, &j->busyflags);
1197                                                 ixj_add_timer(j);
1198                                                 return;
1199                                         }
1200                                 }
1201                         } else {
1202                                 ixj_tone_timeout(j);
1203                                 if (j->flags.dialtone) {
1204                                         ixj_dialtone(j);
1205                                 }
1206                                 if (j->flags.busytone) {
1207                                         ixj_busytone(j);
1208                                         if (j->dsp.low == 0x20) {
1209                                                 clear_bit(board, &j->busyflags);
1210                                                 ixj_add_timer(j);
1211                                                 return;
1212                                         }
1213                                 }
1214                                 if (j->flags.ringback) {
1215                                         ixj_ringback(j);
1216                                         if (j->dsp.low == 0x20) {
1217                                                 clear_bit(board, &j->busyflags);
1218                                                 ixj_add_timer(j);
1219                                                 return;
1220                                         }
1221                                 }
1222                                 if (!j->tone_state) {
1223                                         ixj_cpt_stop(j);
1224                                 }
1225                         }
1226                 }
1227                 if (!(j->tone_state && j->dsp.low == 0x20)) {
1228                         if (IsRxReady(j)) {
1229                                 ixj_read_frame(j);
1230                         }
1231                         if (IsTxReady(j)) {
1232                                 ixj_write_frame(j);
1233                         }
1234                 }
1235                 if (j->flags.cringing) {
1236                         if (j->hookstate & 1) {
1237                                 j->flags.cringing = 0;
1238                                 ixj_ring_off(j);
1239                         } else if(j->cadence_f[5].enable && ((!j->cadence_f[5].en_filter) || (j->cadence_f[5].en_filter && j->flags.firstring))) {
1240                                 switch(j->cadence_f[5].state) {
1241                                         case 0:
1242                                                 j->cadence_f[5].on1dot = jiffies + (long)((j->cadence_f[5].on1 * (hertz * 100) / 10000));
1243                                                 if (time_before(jiffies, j->cadence_f[5].on1dot)) {
1244                                                         if(ixjdebug & 0x0004) {
1245                                                                 printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
1246                                                         }
1247                                                         ixj_ring_on(j);
1248                                                 }
1249                                                 j->cadence_f[5].state = 1;
1250                                                 break;
1251                                         case 1:
1252                                                 if (time_after(jiffies, j->cadence_f[5].on1dot)) {
1253                                                         j->cadence_f[5].off1dot = jiffies + (long)((j->cadence_f[5].off1 * (hertz * 100) / 10000));
1254                                                         if(ixjdebug & 0x0004) {
1255                                                                 printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
1256                                                         }
1257                                                         ixj_ring_off(j);
1258                                                         j->cadence_f[5].state = 2;
1259                                                 }
1260                                                 break;
1261                                         case 2:
1262                                                 if (time_after(jiffies, j->cadence_f[5].off1dot)) {
1263                                                         if(ixjdebug & 0x0004) {
1264                                                                 printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
1265                                                         }
1266                                                         ixj_ring_on(j);
1267                                                         if (j->cadence_f[5].on2) {
1268                                                                 j->cadence_f[5].on2dot = jiffies + (long)((j->cadence_f[5].on2 * (hertz * 100) / 10000));
1269                                                                 j->cadence_f[5].state = 3;
1270                                                         } else {
1271                                                                 j->cadence_f[5].state = 7;
1272                                                         }
1273                                                 }
1274                                                 break;
1275                                         case 3:
1276                                                 if (time_after(jiffies, j->cadence_f[5].on2dot)) {
1277                                                         if(ixjdebug & 0x0004) {
1278                                                                 printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
1279                                                         }
1280                                                         ixj_ring_off(j);
1281                                                         if (j->cadence_f[5].off2) {
1282                                                                 j->cadence_f[5].off2dot = jiffies + (long)((j->cadence_f[5].off2 * (hertz * 100) / 10000));
1283                                                                 j->cadence_f[5].state = 4;
1284                                                         } else {
1285                                                                 j->cadence_f[5].state = 7;
1286                                                         }
1287                                                 }
1288                                                 break;
1289                                         case 4:
1290                                                 if (time_after(jiffies, j->cadence_f[5].off2dot)) {
1291                                                         if(ixjdebug & 0x0004) {
1292                                                                 printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
1293                                                         }
1294                                                         ixj_ring_on(j);
1295                                                         if (j->cadence_f[5].on3) {
1296                                                                 j->cadence_f[5].on3dot = jiffies + (long)((j->cadence_f[5].on3 * (hertz * 100) / 10000));
1297                                                                 j->cadence_f[5].state = 5;
1298                                                         } else {
1299                                                                 j->cadence_f[5].state = 7;
1300                                                         }
1301                                                 }
1302                                                 break;
1303                                         case 5:
1304                                                 if (time_after(jiffies, j->cadence_f[5].on3dot)) {
1305                                                         if(ixjdebug & 0x0004) {
1306                                                                 printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
1307                                                         }
1308                                                         ixj_ring_off(j);
1309                                                         if (j->cadence_f[5].off3) {
1310                                                                 j->cadence_f[5].off3dot = jiffies + (long)((j->cadence_f[5].off3 * (hertz * 100) / 10000));
1311                                                                 j->cadence_f[5].state = 6;
1312                                                         } else {
1313                                                                 j->cadence_f[5].state = 7;
1314                                                         }
1315                                                 }
1316                                                 break;
1317                                         case 6:
1318                                                 if (time_after(jiffies, j->cadence_f[5].off3dot)) {
1319                                                         if(ixjdebug & 0x0004) {
1320                                                                 printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
1321                                                         }
1322                                                         j->cadence_f[5].state = 7;
1323                                                 }
1324                                                 break;
1325                                         case 7:
1326                                                 if(ixjdebug & 0x0004) {
1327                                                         printk("Ringing cadence state = %d - %ld\n", j->cadence_f[5].state, jiffies);
1328                                                 }
1329                                                 j->flags.cidring = 1;
1330                                                 j->cadence_f[5].state = 0;
1331                                                 break;
1332                                 }
1333                                 if (j->flags.cidring && !j->flags.cidsent) {
1334                                         j->flags.cidsent = 1;
1335                                         if(j->fskdcnt) {
1336                                                 SLIC_SetState(PLD_SLIC_STATE_OHT, j);
1337                                                 ixj_pre_cid(j);
1338                                         }
1339                                         j->flags.cidring = 0;
1340                                 }
1341                                 clear_bit(board, &j->busyflags);
1342                                 ixj_add_timer(j);
1343                                 return;
1344                         } else {
1345                                 if (time_after(jiffies, j->ring_cadence_jif + (hertz / 2))) {
1346                                         if (j->flags.cidring && !j->flags.cidsent) {
1347                                                 j->flags.cidsent = 1;
1348                                                 if(j->fskdcnt) {
1349                                                         SLIC_SetState(PLD_SLIC_STATE_OHT, j);
1350                                                         ixj_pre_cid(j);
1351                                                 }
1352                                                 j->flags.cidring = 0;
1353                                         }
1354                                         j->ring_cadence_t--;
1355                                         if (j->ring_cadence_t == -1)
1356                                                 j->ring_cadence_t = 15;
1357                                         j->ring_cadence_jif = jiffies;
1358
1359                                         if (j->ring_cadence & 1 << j->ring_cadence_t) {
1360                                                 if(j->flags.cidsent && j->cadence_f[5].en_filter)
1361                                                         j->flags.firstring = 1;
1362                                                 else
1363                                                         ixj_ring_on(j);
1364                                         } else {
1365                                                 ixj_ring_off(j);
1366                                                 if(!j->flags.cidsent)
1367                                                         j->flags.cidring = 1;
1368                                         }
1369                                 }
1370                                 clear_bit(board, &j->busyflags);
1371                                 ixj_add_timer(j);
1372                                 return;
1373                         }
1374                 }
1375                 if (!j->flags.ringing) {
1376                         if (j->hookstate) { /* & 1) { */
1377                                 if (j->dsp.low != 0x20 &&
1378                                     SLIC_GetState(j) != PLD_SLIC_STATE_ACTIVE) {
1379                                         SLIC_SetState(PLD_SLIC_STATE_ACTIVE, j);
1380                                 }
1381                                 LineMonitor(j);
1382                                 read_filters(j);
1383                                 ixj_WriteDSPCommand(0x511B, j);
1384                                 j->proc_load = j->ssr.high << 8 | j->ssr.low;
1385                                 if (!j->m_hook && (j->hookstate & 1)) {
1386                                         j->m_hook = j->ex.bits.hookstate = 1;
1387                                         ixj_kill_fasync(j, SIG_HOOKSTATE, POLL_IN);
1388                                 }
1389                         } else {
1390                                 if (j->ex.bits.dtmf_ready) {
1391                                         j->dtmf_wp = j->dtmf_rp = j->ex.bits.dtmf_ready = 0;
1392                                 }
1393                                 if (j->m_hook) {
1394                                         j->m_hook = 0;
1395                                         j->ex.bits.hookstate = 1;
1396                                         ixj_kill_fasync(j, SIG_HOOKSTATE, POLL_IN);
1397                                 }
1398                         }
1399                 }
1400                 if (j->cardtype == QTI_LINEJACK && !j->flags.pstncheck && j->flags.pstn_present) {
1401                         ixj_pstn_state(j);
1402                 }
1403                 if (j->ex.bytes) {
1404                         wake_up_interruptible(&j->poll_q);      /* Wake any blocked selects */
1405                 }
1406                 clear_bit(board, &j->busyflags);
1407         }
1408         ixj_add_timer(j);
1409 }
1410
1411 static int ixj_status_wait(IXJ *j)
1412 {
1413         unsigned long jif;
1414
1415         jif = jiffies + ((60 * hertz) / 100);
1416         while (!IsStatusReady(j)) {
1417                 ixj_perfmon(j->statuswait);
1418                 if (time_after(jiffies, jif)) {
1419                         ixj_perfmon(j->statuswaitfail);
1420                         return -1;
1421                 }
1422         }
1423         return 0;
1424 }
1425
1426 static int ixj_PCcontrol_wait(IXJ *j)
1427 {
1428         unsigned long jif;
1429
1430         jif = jiffies + ((60 * hertz) / 100);
1431         while (!IsPCControlReady(j)) {
1432                 ixj_perfmon(j->pcontrolwait);
1433                 if (time_after(jiffies, jif)) {
1434                         ixj_perfmon(j->pcontrolwaitfail);
1435                         return -1;
1436                 }
1437         }
1438         return 0;
1439 }
1440
1441 static int ixj_WriteDSPCommand(unsigned short cmd, IXJ *j)
1442 {
1443         BYTES bytes;
1444         unsigned long jif;
1445
1446         atomic_inc(&j->DSPWrite);
1447         if(atomic_read(&j->DSPWrite) > 1) {
1448                 printk("IXJ %d DSP write overlap attempting command 0x%4.4x\n", j->board, cmd);
1449                 return -1;
1450         }
1451         bytes.high = (cmd & 0xFF00) >> 8;
1452         bytes.low = cmd & 0x00FF;
1453         jif = jiffies + ((60 * hertz) / 100);
1454         while (!IsControlReady(j)) {
1455                 ixj_perfmon(j->iscontrolready);
1456                 if (time_after(jiffies, jif)) {
1457                         ixj_perfmon(j->iscontrolreadyfail);
1458                         atomic_dec(&j->DSPWrite);
1459                         if(atomic_read(&j->DSPWrite) > 0) {
1460                                 printk("IXJ %d DSP overlaped command 0x%4.4x during control ready failure.\n", j->board, cmd);
1461                                 while(atomic_read(&j->DSPWrite) > 0) {
1462                                         atomic_dec(&j->DSPWrite);
1463                                 }
1464                         }
1465                         return -1;
1466                 }
1467         }
1468         outb(bytes.low, j->DSPbase + 6);
1469         outb(bytes.high, j->DSPbase + 7);
1470
1471         if (ixj_status_wait(j)) {
1472                 j->ssr.low = 0xFF;
1473                 j->ssr.high = 0xFF;
1474                 atomic_dec(&j->DSPWrite);
1475                 if(atomic_read(&j->DSPWrite) > 0) {
1476                         printk("IXJ %d DSP overlaped command 0x%4.4x during status wait failure.\n", j->board, cmd);
1477                         while(atomic_read(&j->DSPWrite) > 0) {
1478                                 atomic_dec(&j->DSPWrite);
1479                         }
1480                 }
1481                 return -1;
1482         }
1483 /* Read Software Status Register */
1484         j->ssr.low = inb_p(j->DSPbase + 2);
1485         j->ssr.high = inb_p(j->DSPbase + 3);
1486         atomic_dec(&j->DSPWrite);
1487         if(atomic_read(&j->DSPWrite) > 0) {
1488                 printk("IXJ %d DSP overlaped command 0x%4.4x\n", j->board, cmd);
1489                 while(atomic_read(&j->DSPWrite) > 0) {
1490                         atomic_dec(&j->DSPWrite);
1491                 }
1492         }
1493         return 0;
1494 }
1495
1496 /***************************************************************************
1497 *
1498 *  General Purpose IO Register read routine
1499 *
1500 ***************************************************************************/
1501 static inline int ixj_gpio_read(IXJ *j)
1502 {
1503         if (ixj_WriteDSPCommand(0x5143, j))
1504                 return -1;
1505
1506         j->gpio.bytes.low = j->ssr.low;
1507         j->gpio.bytes.high = j->ssr.high;
1508
1509         return 0;
1510 }
1511
1512 static inline void LED_SetState(int state, IXJ *j)
1513 {
1514         if (j->cardtype == QTI_LINEJACK) {
1515                 j->pld_scrw.bits.led1 = state & 0x1 ? 1 : 0;
1516                 j->pld_scrw.bits.led2 = state & 0x2 ? 1 : 0;
1517                 j->pld_scrw.bits.led3 = state & 0x4 ? 1 : 0;
1518                 j->pld_scrw.bits.led4 = state & 0x8 ? 1 : 0;
1519
1520                 outb(j->pld_scrw.byte, j->XILINXbase);
1521         }
1522 }
1523
1524 /*********************************************************************
1525 *  GPIO Pins are configured as follows on the Quicknet Internet
1526 *  PhoneJACK Telephony Cards
1527 *
1528 * POTS Select        GPIO_6=0 GPIO_7=0
1529 * Mic/Speaker Select GPIO_6=0 GPIO_7=1
1530 * Handset Select     GPIO_6=1 GPIO_7=0
1531 *
1532 * SLIC Active        GPIO_1=0 GPIO_2=1 GPIO_5=0
1533 * SLIC Ringing       GPIO_1=1 GPIO_2=1 GPIO_5=0
1534 * SLIC Open Circuit  GPIO_1=0 GPIO_2=0 GPIO_5=0
1535 *
1536 * Hook Switch changes reported on GPIO_3
1537 *********************************************************************/
1538 static int ixj_set_port(IXJ *j, int arg)
1539 {
1540         if (j->cardtype == QTI_PHONEJACK_LITE) {
1541                 if (arg != PORT_POTS)
1542                         return 10;
1543                 else
1544                         return 0;
1545         }
1546         switch (arg) {
1547         case PORT_POTS:
1548                 j->port = PORT_POTS;
1549                 switch (j->cardtype) {
1550                 case QTI_PHONECARD:
1551                         if (j->flags.pcmciasct == 1)
1552                                 SLIC_SetState(PLD_SLIC_STATE_ACTIVE, j);
1553                         else
1554                                 return 11;
1555                         break;
1556                 case QTI_PHONEJACK_PCI:
1557                         j->pld_slicw.pcib.mic = 0;
1558                         j->pld_slicw.pcib.spk = 0;
1559                         outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
1560                         break;
1561                 case QTI_LINEJACK:
1562                         ixj_set_pots(j, 0);                     /* Disconnect POTS/PSTN relay */
1563                         if (ixj_WriteDSPCommand(0xC528, j))             /* Write CODEC config to
1564                                                                            Software Control Register */
1565                                 return 2;
1566                         j->pld_scrw.bits.daafsyncen = 0;        /* Turn off DAA Frame Sync */
1567
1568                         outb(j->pld_scrw.byte, j->XILINXbase);
1569                         j->pld_clock.byte = 0;
1570                         outb(j->pld_clock.byte, j->XILINXbase + 0x04);
1571                         j->pld_slicw.bits.rly1 = 1;
1572                         j->pld_slicw.bits.spken = 0;
1573                         outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
1574                         ixj_mixer(0x1200, j);   /* Turn Off MIC switch on mixer left */
1575                         ixj_mixer(0x1401, j);   /* Turn On Mono1 switch on mixer left */
1576                         ixj_mixer(0x1300, j);       /* Turn Off MIC switch on mixer right */
1577                         ixj_mixer(0x1501, j);       /* Turn On Mono1 switch on mixer right */
1578                         ixj_mixer(0x0E80, j);   /*Mic mute */
1579                         ixj_mixer(0x0F00, j);   /* Set mono out (SLIC) to 0dB */
1580                         ixj_mixer(0x0080, j);   /* Mute Master Left volume */
1581                         ixj_mixer(0x0180, j);   /* Mute Master Right volume */
1582                         SLIC_SetState(PLD_SLIC_STATE_STANDBY, j);
1583 /*                      SLIC_SetState(PLD_SLIC_STATE_ACTIVE, j); */
1584                         break;
1585                 case QTI_PHONEJACK:
1586                         j->gpio.bytes.high = 0x0B;
1587                         j->gpio.bits.gpio6 = 0;
1588                         j->gpio.bits.gpio7 = 0;
1589                         ixj_WriteDSPCommand(j->gpio.word, j);
1590                         break;
1591                 }
1592                 break;
1593         case PORT_PSTN:
1594                 if (j->cardtype == QTI_LINEJACK) {
1595                         ixj_WriteDSPCommand(0xC534, j); /* Write CODEC config to Software Control Register */
1596
1597                         j->pld_slicw.bits.rly3 = 0;
1598                         j->pld_slicw.bits.rly1 = 1;
1599                         j->pld_slicw.bits.spken = 0;
1600                         outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
1601                         j->port = PORT_PSTN;
1602                 } else {
1603                         return 4;
1604                 }
1605                 break;
1606         case PORT_SPEAKER:
1607                 j->port = PORT_SPEAKER;
1608                 switch (j->cardtype) {
1609                 case QTI_PHONECARD:
1610                         if (j->flags.pcmciasct) {
1611                                 SLIC_SetState(PLD_SLIC_STATE_OC, j);
1612                         }
1613                         break;
1614                 case QTI_PHONEJACK_PCI:
1615                         j->pld_slicw.pcib.mic = 1;
1616                         j->pld_slicw.pcib.spk = 1;
1617                         outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
1618                         break;
1619                 case QTI_LINEJACK:
1620                         ixj_set_pots(j, 0);                     /* Disconnect POTS/PSTN relay */
1621                         if (ixj_WriteDSPCommand(0xC528, j))             /* Write CODEC config to
1622                                                                            Software Control Register */
1623                                 return 2;
1624                         j->pld_scrw.bits.daafsyncen = 0;        /* Turn off DAA Frame Sync */
1625
1626                         outb(j->pld_scrw.byte, j->XILINXbase);
1627                         j->pld_clock.byte = 0;
1628                         outb(j->pld_clock.byte, j->XILINXbase + 0x04);
1629                         j->pld_slicw.bits.rly1 = 1;
1630                         j->pld_slicw.bits.spken = 1;
1631                         outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
1632                         ixj_mixer(0x1201, j);   /* Turn On MIC switch on mixer left */
1633                         ixj_mixer(0x1400, j);   /* Turn Off Mono1 switch on mixer left */
1634                         ixj_mixer(0x1301, j);       /* Turn On MIC switch on mixer right */
1635                         ixj_mixer(0x1500, j);       /* Turn Off Mono1 switch on mixer right */
1636                         ixj_mixer(0x0E06, j);   /*Mic un-mute 0dB */
1637                         ixj_mixer(0x0F80, j);   /* Mute mono out (SLIC) */
1638                         ixj_mixer(0x0000, j);   /* Set Master Left volume to 0dB */
1639                         ixj_mixer(0x0100, j);   /* Set Master Right volume to 0dB */
1640                         break;
1641                 case QTI_PHONEJACK:
1642                         j->gpio.bytes.high = 0x0B;
1643                         j->gpio.bits.gpio6 = 0;
1644                         j->gpio.bits.gpio7 = 1;
1645                         ixj_WriteDSPCommand(j->gpio.word, j);
1646                         break;
1647                 }
1648                 break;
1649         case PORT_HANDSET:
1650                 if (j->cardtype != QTI_PHONEJACK) {
1651                         return 5;
1652                 } else {
1653                         j->gpio.bytes.high = 0x0B;
1654                         j->gpio.bits.gpio6 = 1;
1655                         j->gpio.bits.gpio7 = 0;
1656                         ixj_WriteDSPCommand(j->gpio.word, j);
1657                         j->port = PORT_HANDSET;
1658                 }
1659                 break;
1660         default:
1661                 return 6;
1662                 break;
1663         }
1664         return 0;
1665 }
1666
1667 static int ixj_set_pots(IXJ *j, int arg)
1668 {
1669         if (j->cardtype == QTI_LINEJACK) {
1670                 if (arg) {
1671                         if (j->port == PORT_PSTN) {
1672                                 j->pld_slicw.bits.rly1 = 0;
1673                                 outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
1674                                 j->flags.pots_pstn = 1;
1675                                 return 1;
1676                         } else {
1677                                 j->flags.pots_pstn = 0;
1678                                 return 0;
1679                         }
1680                 } else {
1681                         j->pld_slicw.bits.rly1 = 1;
1682                         outb(j->pld_slicw.byte, j->XILINXbase + 0x01);
1683                         j->flags.pots_pstn = 0;
1684                         return 1;
1685                 }
1686         } else {
1687                 return 0;
1688         }
1689 }
1690
1691 static void ixj_ring_on(IXJ *j)
1692 {
1693         if (j->dsp.low == 0x20) /* Internet PhoneJACK */
1694          {
1695                 if (ixjdebug & 0x0004)
1696                         printk(KERN_INFO "IXJ Ring On /dev/phone%d\n",  j->board);
1697
1698                 j->gpio.bytes.high = 0x0B;
1699                 j->gpio.bytes.low = 0x00;
1700                 j->gpio.bits.gpio1 = 1;
1701                 j->gpio.bits.gpio2 = 1;
1702                 j->gpio.bits.gpio5 = 0;
1703                 ixj_WriteDSPCommand(j->gpio.word, j);   /* send the ring signal */
1704         } else                  /* Internet LineJACK, Internet PhoneJACK Lite or Internet PhoneJACK PCI */
1705         {
1706                 if (ixjdebug & 0x0004)
1707                         printk(KERN_INFO "IXJ Ring On /dev/phone%d\n", j->board);
1708
1709                 SLIC_SetState(PLD_SLIC_STATE_RINGING, j);
1710         }
1711 }
1712
1713 static int ixj_siadc(IXJ *j, int val)
1714 {
1715         if(j->cardtype == QTI_PHONECARD){
1716                 if(j->flags.pcmciascp){
1717                         if(val == -1)
1718                                 return j->siadc.bits.rxg;
1719
1720                         if(val < 0 || val > 0x1F)
1721                                 return -1;
1722
1723                         j->siadc.bits.hom = 0;                          /* Handset Out Mute */
1724                         j->siadc.bits.lom = 0;                          /* Line Out Mute */
1725                         j->siadc.bits.rxg = val;                        /*(0xC000 - 0x41C8) / 0x4EF;    RX PGA Gain */
1726                         j->psccr.bits.addr = 6;                         /* R/W Smart Cable Register Address */
1727                         j->psccr.bits.rw = 0;                           /* Read / Write flag */
1728                         j->psccr.bits.dev = 0;
1729                         outb(j->siadc.byte, j->XILINXbase + 0x00);
1730                         outb(j->psccr.byte, j->XILINXbase + 0x01);
1731                         ixj_PCcontrol_wait(j);
1732                         return j->siadc.bits.rxg;
1733                 }
1734         }
1735         return -1;
1736 }
1737
1738 static int ixj_sidac(IXJ *j, int val)
1739 {
1740         if(j->cardtype == QTI_PHONECARD){
1741                 if(j->flags.pcmciascp){
1742                         if(val == -1)
1743                                 return j->sidac.bits.txg;
1744
1745                         if(val < 0 || val > 0x1F)
1746                                 return -1;
1747
1748                         j->sidac.bits.srm = 1;                          /* Speaker Right Mute */
1749                         j->sidac.bits.slm = 1;                          /* Speaker Left Mute */
1750                         j->sidac.bits.txg = val;                        /* (0xC000 - 0x45E4) / 0x5D3;    TX PGA Gain */
1751                         j->psccr.bits.addr = 7;                         /* R/W Smart Cable Register Address */
1752                         j->psccr.bits.rw = 0;                           /* Read / Write flag */
1753                         j->psccr.bits.dev = 0;
1754                         outb(j->sidac.byte, j->XILINXbase + 0x00);
1755                         outb(j->psccr.byte, j->XILINXbase + 0x01);
1756                         ixj_PCcontrol_wait(j);
1757                         return j->sidac.bits.txg;
1758                 }
1759         }
1760         return -1;
1761 }
1762
1763 static int ixj_pcmcia_cable_check(IXJ *j)
1764 {
1765         j->pccr1.byte = inb_p(j->XILINXbase + 0x03);
1766         if (!j->flags.pcmciastate) {
1767                 j->pccr2.byte = inb_p(j->XILINXbase + 0x02);
1768                 if (j->pccr1.bits.drf || j->pccr2.bits.rstc) {
1769                         j->flags.pcmciastate = 4;
1770                         return 0;
1771                 }
1772                 if (j->pccr1.bits.ed) {
1773                         j->pccr1.bits.ed = 0;
1774                         j->psccr.bits.dev = 3;
1775                         j->psccr.bits.rw = 1;
1776                         outw_p(j->psccr.byte << 8, j->XILINXbase + 0x00);
1777                         ixj_PCcontrol_wait(j);
1778                         j->pslic.byte = inw_p(j->XILINXbase + 0x00) & 0xFF;
1779                         j->pslic.bits.led2 = j->pslic.bits.det ? 1 : 0;
1780                         j->psccr.bits.dev = 3;
1781                         j->psccr.bits.rw = 0;
1782                         outw_p(j->psccr.byte << 8 | j->pslic.byte, j->XILINXbase + 0x00);
1783                         ixj_PCcontrol_wait(j);
1784                         return j->pslic.bits.led2 ? 1 : 0;
1785                 } else if (j->flags.pcmciasct) {
1786                         return j->r_hook;
1787                 } else {
1788                         return 1;
1789                 }
1790         } else if (j->flags.pcmciastate == 4) {
1791                 if (!j->pccr1.bits.drf) {
1792                         j->flags.pcmciastate = 3;
1793                 }
1794                 return 0;
1795         } else if (j->flags.pcmciastate == 3) {
1796                 j->pccr2.bits.pwr = 0;
1797                 j->pccr2.bits.rstc = 1;
1798                 outb(j->pccr2.byte, j->XILINXbase + 0x02);
1799                 j->checkwait = jiffies + (hertz * 2);
1800                 j->flags.incheck = 1;
1801                 j->flags.pcmciastate = 2;
1802                 return 0;
1803         } else if (j->flags.pcmciastate == 2) {
1804                 if (j->flags.incheck) {
1805                         if (time_before(jiffies, j->checkwait)) {
1806                                 return 0;
1807                         } else {
1808                                 j->flags.incheck = 0;
1809                         }
1810                 }
1811                 j->pccr2.bits.pwr = 0;
1812                 j->pccr2.bits.rstc = 0;
1813                 outb_p(j->pccr2.byte, j->XILINXbase + 0x02);
1814                 j->flags.pcmciastate = 1;
1815                 return 0;
1816         } else if (j->flags.pcmciastate == 1) {
1817                 j->flags.pcmciastate = 0;
1818                 if (!j->pccr1.bits.drf) {
1819                         j->psccr.bits.dev = 3;
1820                         j->psccr.bits.rw = 1;
1821                         outb_p(j->psccr.byte, j->XILINXbase + 0x01);
1822                         ixj_PCcontrol_wait(j);
1823                         j->flags.pcmciascp = 1;         /* Set Cable Present Flag */
1824
1825                         j->flags.pcmciasct = (inw_p(j->XILINXbase + 0x00) >> 8) & 0x03;         /* Get Cable Type */
1826
1827                         if (j->flags.pcmciasct == 3) {
1828                                 j->flags.pcmciastate = 4;
1829                                 return 0;
1830                         } else if (j->flags.pcmciasct == 0) {
1831                                 j->pccr2.bits.pwr = 1;
1832                                 j->pccr2.bits.rstc = 0;
1833                                 outb_p(j->pccr2.byte, j->XILINXbase + 0x02);
1834                                 j->port = PORT_SPEAKER;
1835                         } else {
1836                                 j->port = PORT_POTS;
1837                         }
1838                         j->sic1.bits.cpd = 0;                           /* Chip Power Down */
1839                         j->sic1.bits.mpd = 0;                           /* MIC Bias Power Down */
1840                         j->sic1.bits.hpd = 0;                           /* Handset Bias Power Down */
1841                         j->sic1.bits.lpd = 0;                           /* Line Bias Power Down */
1842                         j->sic1.bits.spd = 1;                           /* Speaker Drive Power Down */
1843                         j->psccr.bits.addr = 1;                         /* R/W Smart Cable Register Address */
1844                         j->psccr.bits.rw = 0;                           /* Read / Write flag */
1845                         j->psccr.bits.dev = 0;
1846                         outb(j->sic1.byte, j->XILINXbase + 0x00);
1847                         outb(j->psccr.byte, j->XILINXbase + 0x01);
1848                         ixj_PCcontrol_wait(j);
1849
1850                         j->sic2.bits.al = 0;                            /* Analog Loopback DAC analog -> ADC analog */
1851                         j->sic2.bits.dl2 = 0;                           /* Digital Loopback DAC -> ADC one bit */
1852                         j->sic2.bits.dl1 = 0;                           /* Digital Loopback ADC -> DAC one bit */
1853                         j->sic2.bits.pll = 0;                           /* 1 = div 10, 0 = div 5 */
1854                         j->sic2.bits.hpd = 0;                           /* HPF disable */
1855                         j->psccr.bits.addr = 2;                         /* R/W Smart Cable Register Address */
1856                         j->psccr.bits.rw = 0;                           /* Read / Write flag */
1857                         j->psccr.bits.dev = 0;
1858                         outb(j->sic2.byte, j->XILINXbase + 0x00);
1859                         outb(j->psccr.byte, j->XILINXbase + 0x01);
1860                         ixj_PCcontrol_wait(j);
1861
1862                         j->psccr.bits.addr = 3;                         /* R/W Smart Cable Register Address */
1863                         j->psccr.bits.rw = 0;                           /* Read / Write flag */
1864                         j->psccr.bits.dev = 0;
1865                         outb(0x00, j->XILINXbase + 0x00);               /* PLL Divide N1 */
1866                         outb(j->psccr.byte, j->XILINXbase + 0x01);
1867                         ixj_PCcontrol_wait(j);
1868
1869                         j->psccr.bits.addr = 4;                         /* R/W Smart Cable Register Address */
1870                         j->psccr.bits.rw = 0;                           /* Read / Write flag */
1871                         j->psccr.bits.dev = 0;
1872                         outb(0x09, j->XILINXbase + 0x00);               /* PLL Multiply M1 */
1873                         outb(j->psccr.byte, j->XILINXbase + 0x01);
1874                         ixj_PCcontrol_wait(j);
1875
1876                         j->sirxg.bits.lig = 1;                          /* Line In Gain */
1877                         j->sirxg.bits.lim = 1;                          /* Line In Mute */
1878                         j->sirxg.bits.mcg = 0;                          /* MIC In Gain was 3 */
1879                         j->sirxg.bits.mcm = 0;                          /* MIC In Mute */
1880                         j->sirxg.bits.him = 0;                          /* Handset In Mute */
1881                         j->sirxg.bits.iir = 1;                          /* IIR */
1882                         j->psccr.bits.addr = 5;                         /* R/W Smart Cable Register Address */
1883                         j->psccr.bits.rw = 0;                           /* Read / Write flag */
1884                         j->psccr.bits.dev = 0;
1885                         outb(j->sirxg.byte, j->XILINXbase + 0x00);
1886                         outb(j->psccr.byte, j->XILINXbase + 0x01);
1887                         ixj_PCcontrol_wait(j);
1888
1889                         ixj_siadc(j, 0x17);
1890                         ixj_sidac(j, 0x1D);
1891
1892                         j->siaatt.bits.sot = 0;
1893                         j->psccr.bits.addr = 9;                         /* R/W Smart Cable Register Address */
1894                         j->psccr.bits.rw = 0;                           /* Read / Write flag */
1895                         j->psccr.bits.dev = 0;
1896                         outb(j->siaatt.byte, j->XILINXbase + 0x00);
1897                         outb(j->psccr.byte, j->XILINXbase + 0x01);
1898                         ixj_PCcontrol_wait(j);
1899
1900                         if (j->flags.pcmciasct == 1 && !j->readers && !j->writers) {
1901                                 j->psccr.byte = j->pslic.byte = 0;
1902                                 j->pslic.bits.powerdown = 1;
1903                                 j->psccr.bits.dev = 3;
1904                                 j->psccr.bits.rw = 0;
1905                                 outw_p(j->psccr.byte << 8 | j->pslic.byte, j->XILINXbase + 0x00);
1906                                 ixj_PCcontrol_wait(j);
1907                         }
1908                 }
1909                 return 0;
1910         } else {
1911                 j->flags.pcmciascp = 0;
1912                 return 0;
1913         }
1914         return 0;
1915 }
1916
1917 static int ixj_hookstate(IXJ *j)
1918 {
1919         int fOffHook = 0;
1920
1921         switch (j->cardtype) {
1922         case QTI_PHONEJACK:
1923                 ixj_gpio_read(j);
1924                 fOffHook = j->gpio.bits.gpio3read ? 1 : 0;
1925                 break;
1926         case QTI_LINEJACK:
1927         case QTI_PHONEJACK_LITE:
1928         case QTI_PHONEJACK_PCI:
1929                 SLIC_GetState(j);
1930                 if(j->cardtype == QTI_LINEJACK && j->flags.pots_pstn == 1 && (j->readers || j->writers)) {
1931                         fOffHook = j->pld_slicr.bits.potspstn ? 1 : 0;
1932                         if(fOffHook != j->p_hook) {
1933                                 if(!j->checkwait) {
1934                                         j->checkwait = jiffies;
1935                                 }
1936                                 if(time_before(jiffies, j->checkwait + 2)) {
1937                                         fOffHook ^= 1;
1938                                 } else {
1939                                         j->checkwait = 0;
1940                                 }
1941                                 j->p_hook = fOffHook;
1942                                 printk("IXJ : /dev/phone%d pots-pstn hookstate check %d at %ld\n", j->board, fOffHook, jiffies);
1943                         }
1944                 } else {
1945                         if (j->pld_slicr.bits.state == PLD_SLIC_STATE_ACTIVE ||
1946                             j->pld_slicr.bits.state == PLD_SLIC_STATE_STANDBY) {
1947                                 if (j->flags.ringing || j->flags.cringing) {
1948                                         if (!in_interrupt()) {
1949                                                 msleep(20);
1950                                         }
1951                                         SLIC_GetState(j);
1952                                         if (j->pld_slicr.bits.state == PLD_SLIC_STATE_RINGING) {
1953                                                 ixj_ring_on(j);
1954                                         }
1955                                 }
1956                                 if (j->cardtype == QTI_PHONEJACK_PCI) {
1957                                         j->pld_scrr.byte = inb_p(j->XILINXbase);
1958                                         fOffHook = j->pld_scrr.pcib.det ? 1 : 0;
1959                                 } else
1960                                         fOffHook = j->pld_slicr.bits.det ? 1 : 0;
1961                         }
1962                 }
1963                 break;
1964         case QTI_PHONECARD:
1965                 fOffHook = ixj_pcmcia_cable_check(j);
1966                 break;
1967         }
1968         if (j->r_hook != fOffHook) {
1969                 j->r_hook = fOffHook;
1970                 if (j->port == PORT_SPEAKER || j->port == PORT_HANDSET) { // || (j->port == PORT_PSTN && j->flags.pots_pstn == 0)) {
1971                         j->ex.bits.hookstate = 1;
1972                         ixj_kill_fasync(j, SIG_HOOKSTATE, POLL_IN);
1973                 } else if (!fOffHook) {
1974                         j->flash_end = jiffies + ((60 * hertz) / 100);
1975                 }
1976         }
1977         if (fOffHook) {
1978                 if(time_before(jiffies, j->flash_end)) {
1979                         j->ex.bits.flash = 1;
1980                         j->flash_end = 0;
1981                         ixj_kill_fasync(j, SIG_FLASH, POLL_IN);
1982                 }
1983         } else {
1984                 if(time_before(jiffies, j->flash_end)) {
1985                         fOffHook = 1;
1986                 }
1987         }
1988
1989         if (j->port == PORT_PSTN && j->daa_mode == SOP_PU_CONVERSATION)
1990                 fOffHook |= 2;
1991
1992         if (j->port == PORT_SPEAKER) {
1993                 if(j->cardtype == QTI_PHONECARD) {
1994                         if(j->flags.pcmciascp && j->flags.pcmciasct) {
1995                                 fOffHook |= 2;
1996                         }
1997                 } else {
1998                         fOffHook |= 2;
1999                 }
2000         }
2001
2002         if (j->port == PORT_HANDSET)
2003                 fOffHook |= 2;
2004
2005         return fOffHook;
2006 }
2007
2008 static void ixj_ring_off(IXJ *j)
2009 {
2010         if (j->dsp.low == 0x20) /* Internet PhoneJACK */
2011          {
2012                 if (ixjdebug & 0x0004)
2013                         printk(KERN_INFO "IXJ Ring Off\n");
2014                 j->gpio.bytes.high = 0x0B;
2015                 j->gpio.bytes.low = 0x00;
2016                 j->gpio.bits.gpio1 = 0;
2017                 j->gpio.bits.gpio2 = 1;
2018                 j->gpio.bits.gpio5 = 0;
2019                 ixj_WriteDSPCommand(j->gpio.word, j);
2020         } else                  /* Internet LineJACK */
2021         {
2022                 if (ixjdebug & 0x0004)
2023                         printk(KERN_INFO "IXJ Ring Off\n");
2024
2025                 if(!j->flags.cidplay)
2026                         SLIC_SetState(PLD_SLIC_STATE_STANDBY, j);
2027
2028                 SLIC_GetState(j);
2029         }
2030 }
2031
2032 static void ixj_ring_start(IXJ *j)
2033 {
2034         j->flags.cringing = 1;
2035         if (ixjdebug & 0x0004)
2036                 printk(KERN_INFO "IXJ Cadence Ringing Start /dev/phone%d\n", j->board);
2037         if (ixj_hookstate(j) & 1) {
2038                 if (j->port == PORT_POTS)
2039                         ixj_ring_off(j);
2040                 j->flags.cringing = 0;
2041                 if (ixjdebug & 0x0004)
2042                         printk(KERN_INFO "IXJ Cadence Ringing Stopped /dev/phone%d off hook\n", j->board);
2043         } else if(j->cadence_f[5].enable && (!j->cadence_f[5].en_filter)) {
2044                 j->ring_cadence_jif = jiffies;
2045                 j->flags.cidsent = j->flags.cidring = 0;
2046                 j->cadence_f[5].state = 0;
2047                 if(j->cadence_f[5].on1)
2048                         ixj_ring_on(j);
2049         } else {
2050                 j->ring_cadence_jif = jiffies;
2051                 j->ring_cadence_t = 15;
2052                 if (j->ring_cadence & 1 << j->ring_cadence_t) {
2053                         ixj_ring_on(j);
2054                 } else {
2055                         ixj_ring_off(j);
2056                 }
2057                 j->flags.cidsent = j->flags.cidring = j->flags.firstring = 0;
2058         }
2059 }
2060
2061 static int ixj_ring(IXJ *j)
2062 {
2063         char cntr;
2064         unsigned long jif;
2065
2066         j->flags.ringing = 1;
2067         if (ixj_hookstate(j) & 1) {
2068                 ixj_ring_off(j);
2069                 j->flags.ringing = 0;
2070                 return 1;
2071         }
2072         for (cntr = 0; cntr < j->maxrings; cntr++) {
2073                 jif = jiffies + (1 * hertz);
2074                 ixj_ring_on(j);
2075                 while (time_before(jiffies, jif)) {
2076                         if (ixj_hookstate(j) & 1) {
2077                                 ixj_ring_off(j);
2078                                 j->flags.ringing = 0;
2079                                 return 1;
2080                         }
2081                         schedule_timeout_interruptible(1);
2082                         if (signal_pending(current))
2083                                 break;
2084                 }
2085                 jif = jiffies + (3 * hertz);
2086                 ixj_ring_off(j);
2087                 while (time_before(jiffies, jif)) {
2088                         if (ixj_hookstate(j) & 1) {
2089                                 msleep(10);
2090                                 if (ixj_hookstate(j) & 1) {
2091                                         j->flags.ringing = 0;
2092                                         return 1;
2093                                 }
2094                         }
2095                         schedule_timeout_interruptible(1);
2096                         if (signal_pending(current))
2097                                 break;
2098                 }
2099         }
2100         ixj_ring_off(j);
2101         j->flags.ringing = 0;
2102         return 0;
2103 }
2104
2105 static int ixj_open(struct phone_device *p, struct file *file_p)
2106 {
2107         IXJ *j = get_ixj(p->board);
2108         file_p->private_data = j;
2109
2110         if (!j->DSPbase)
2111                 return -ENODEV;
2112
2113         if (file_p->f_mode & FMODE_READ) {
2114                 if(!j->readers) {
2115                         j->readers++;
2116                 } else {
2117                         return -EBUSY;
2118                 }
2119         }
2120
2121         if (file_p->f_mode & FMODE_WRITE) {
2122                 if(!j->writers) {
2123                         j->writers++;
2124                 } else {
2125                         if (file_p->f_mode & FMODE_READ){
2126                                 j->readers--;
2127                         }
2128                         return -EBUSY;
2129                 }
2130         }
2131
2132         if (j->cardtype == QTI_PHONECARD) {
2133                 j->pslic.bits.powerdown = 0;
2134                 j->psccr.bits.dev = 3;
2135                 j->psccr.bits.rw = 0;
2136                 outw_p(j->psccr.byte << 8 | j->pslic.byte, j->XILINXbase + 0x00);
2137                 ixj_PCcontrol_wait(j);
2138         }
2139
2140         j->flags.cidplay = 0;
2141         j->flags.cidcw_ack = 0;
2142
2143         if (ixjdebug & 0x0002)
2144                 printk(KERN_INFO "Opening board %d\n", p->board);
2145
2146         j->framesread = j->frameswritten = 0;
2147         return 0;
2148 }
2149
2150 static int ixj_release(struct inode *inode, struct file *file_p)
2151 {
2152         IXJ_TONE ti;
2153         int cnt;
2154         IXJ *j = file_p->private_data;
2155         int board = j->p.board;
2156
2157         /*
2158          *    Set up locks to ensure that only one process is talking to the DSP at a time.
2159          *    This is necessary to keep the DSP from locking up.
2160          */
2161         while(test_and_set_bit(board, (void *)&j->busyflags) != 0)
2162                 schedule_timeout_interruptible(1);
2163         if (ixjdebug & 0x0002)
2164                 printk(KERN_INFO "Closing board %d\n", NUM(inode));
2165
2166         if (j->cardtype == QTI_PHONECARD)
2167                 ixj_set_port(j, PORT_SPEAKER);
2168         else
2169                 ixj_set_port(j, PORT_POTS);
2170
2171         aec_stop(j);
2172         ixj_play_stop(j);
2173         ixj_record_stop(j);
2174         set_play_volume(j, 0x100);
2175         set_rec_volume(j, 0x100);
2176         ixj_ring_off(j);
2177
2178         /* Restore the tone table to default settings. */
2179         ti.tone_index = 10;
2180         ti.gain0 = 1;
2181         ti.freq0 = hz941;
2182         ti.gain1 = 0;
2183         ti.freq1 = hz1209;
2184         ixj_init_tone(j, &ti);
2185         ti.tone_index = 11;
2186         ti.gain0 = 1;
2187         ti.freq0 = hz941;
2188         ti.gain1 = 0;
2189         ti.freq1 = hz1336;
2190         ixj_init_tone(j, &ti);
2191         ti.tone_index = 12;
2192         ti.gain0 = 1;
2193         ti.freq0 = hz941;
2194         ti.gain1 = 0;
2195         ti.freq1 = hz1477;
2196         ixj_init_tone(j, &ti);
2197         ti.tone_index = 13;
2198         ti.gain0 = 1;
2199         ti.freq0 = hz800;
2200         ti.gain1 = 0;
2201         ti.freq1 = 0;
2202         ixj_init_tone(j, &ti);
2203         ti.tone_index = 14;
2204         ti.gain0 = 1;
2205         ti.freq0 = hz1000;
2206         ti.gain1 = 0;
2207         ti.freq1 = 0;
2208         ixj_init_tone(j, &ti);
2209         ti.tone_index = 15;
2210         ti.gain0 = 1;
2211         ti.freq0 = hz1250;
2212         ti.gain1 = 0;
2213         ti.freq1 = 0;
2214         ixj_init_tone(j, &ti);
2215         ti.tone_index = 16;
2216         ti.gain0 = 1;
2217         ti.freq0 = hz950;
2218         ti.gain1 = 0;
2219         ti.freq1 = 0;
2220         ixj_init_tone(j, &ti);
2221         ti.tone_index = 17;
2222         ti.gain0 = 1;
2223         ti.freq0 = hz1100;
2224         ti.gain1 = 0;
2225         ti.freq1 = 0;
2226         ixj_init_tone(j, &ti);
2227         ti.tone_index = 18;
2228         ti.gain0 = 1;
2229         ti.freq0 = hz1400;
2230         ti.gain1 = 0;
2231         ti.freq1 = 0;
2232         ixj_init_tone(j, &ti);
2233         ti.tone_index = 19;
2234         ti.gain0 = 1;
2235         ti.freq0 = hz1500;
2236         ti.gain1 = 0;
2237         ti.freq1 = 0;
2238         ixj_init_tone(j, &ti);
2239         ti.tone_index = 20;
2240         ti.gain0 = 1;
2241         ti.freq0 = hz1600;
2242         ti.gain1 = 0;
2243         ti.freq1 = 0;
2244         ixj_init_tone(j, &ti);
2245         ti.tone_index = 21;
2246         ti.gain0 = 1;
2247         ti.freq0 = hz1800;
2248         ti.gain1 = 0;
2249         ti.freq1 = 0;
2250         ixj_init_tone(j, &ti);
2251         ti.tone_index = 22;
2252         ti.gain0 = 1;
2253         ti.freq0 = hz2100;
2254         ti.gain1 = 0;
2255         ti.freq1 = 0;
2256         ixj_init_tone(j, &ti);
2257         ti.tone_index = 23;
2258         ti.gain0 = 1;
2259         ti.freq0 = hz1300;
2260         ti.gain1 = 0;
2261         ti.freq1 = 0;
2262         ixj_init_tone(j, &ti);
2263         ti.tone_index = 24;
2264         ti.gain0 = 1;
2265         ti.freq0 = hz2450;
2266         ti.gain1 = 0;
2267         ti.freq1 = 0;
2268         ixj_init_tone(j, &ti);
2269         ti.tone_index = 25;
2270         ti.gain0 = 1;
2271         ti.freq0 = hz350;
2272         ti.gain1 = 0;
2273         ti.freq1 = hz440;
2274         ixj_init_tone(j, &ti);
2275         ti.tone_index = 26;
2276         ti.gain0 = 1;
2277         ti.freq0 = hz440;
2278         ti.gain1 = 0;
2279         ti.freq1 = hz480;
2280         ixj_init_tone(j, &ti);
2281         ti.tone_index = 27;
2282         ti.gain0 = 1;
2283         ti.freq0 = hz480;
2284         ti.gain1 = 0;
2285         ti.freq1 = hz620;
2286         ixj_init_tone(j, &ti);
2287
2288         set_rec_depth(j, 2);    /* Set Record Channel Limit to 2 frames */
2289
2290         set_play_depth(j, 2);   /* Set Playback Channel Limit to 2 frames */
2291
2292         j->ex.bits.dtmf_ready = 0;
2293         j->dtmf_state = 0;
2294         j->dtmf_wp = j->dtmf_rp = 0;
2295         j->rec_mode = j->play_mode = -1;
2296         j->flags.ringing = 0;
2297         j->maxrings = MAXRINGS;
2298         j->ring_cadence = USA_RING_CADENCE;
2299         if(j->cadence_f[5].enable) {
2300                 j->cadence_f[5].enable = j->cadence_f[5].en_filter = j->cadence_f[5].state = 0;
2301         }
2302         j->drybuffer = 0;
2303         j->winktime = 320;
2304         j->flags.dtmf_oob = 0;
2305         for (cnt = 0; cnt < 4; cnt++)
2306                 j->cadence_f[cnt].enable = 0;
2307
2308         idle(j);
2309
2310         if(j->cardtype == QTI_PHONECARD) {
2311                 SLIC_SetState(PLD_SLIC_STATE_OC, j);
2312         }
2313
2314         if (file_p->f_mode & FMODE_READ)
2315                 j->readers--;
2316         if (file_p->f_mode & FMODE_WRITE)
2317                 j->writers--;
2318
2319         if (j->read_buffer && !j->readers) {
2320                 kfree(j->read_buffer);
2321                 j->read_buffer = NULL;
2322                 j->read_buffer_size = 0;
2323         }
2324         if (j->write_buffer && !j->writers) {
2325                 kfree(j->write_buffer);
2326                 j->write_buffer = NULL;
2327                 j->write_buffer_size = 0;
2328         }
2329         j->rec_codec = j->play_codec = 0;
2330         j->rec_frame_size = j->play_frame_size = 0;
2331         j->flags.cidsent = j->flags.cidring = 0;
2332
2333         if(j->cardtype == QTI_LINEJACK && !j->readers && !j->writers) {
2334                 ixj_set_port(j, PORT_PSTN);
2335                 daa_set_mode(j, SOP_PU_SLEEP);
2336                 ixj_set_pots(j, 1);
2337         }
2338         ixj_WriteDSPCommand(0x0FE3, j); /* Put the DSP in 1/5 power mode. */
2339
2340         /* Set up the default signals for events */
2341         for (cnt = 0; cnt < 35; cnt++)
2342                 j->ixj_signals[cnt] = SIGIO;
2343
2344         /* Set the excetion signal enable flags */
2345         j->ex_sig.bits.dtmf_ready = j->ex_sig.bits.hookstate = j->ex_sig.bits.flash = j->ex_sig.bits.pstn_ring =
2346         j->ex_sig.bits.caller_id = j->ex_sig.bits.pstn_wink = j->ex_sig.bits.f0 = j->ex_sig.bits.f1 = j->ex_sig.bits.f2 =
2347         j->ex_sig.bits.f3 = j->ex_sig.bits.fc0 = j->ex_sig.bits.fc1 = j->ex_sig.bits.fc2 = j->ex_sig.bits.fc3 = 1;
2348
2349         file_p->private_data = NULL;
2350         clear_bit(board, &j->busyflags);
2351         return 0;
2352 }
2353
2354 static int read_filters(IXJ *j)
2355 {
2356         unsigned short fc, cnt, trg;
2357         int var;
2358
2359         trg = 0;
2360         if (ixj_WriteDSPCommand(0x5144, j)) {
2361                 if(ixjdebug & 0x0001) {
2362                         printk(KERN_INFO "Read Frame Counter failed!\n");
2363                 }
2364                 return -1;
2365         }
2366         fc = j->ssr.high << 8 | j->ssr.low;
2367         if (fc == j->frame_count)
2368                 return 1;
2369
2370         j->frame_count = fc;
2371
2372         if (j->dtmf_proc)
2373                 return 1;
2374
2375         var = 10;
2376
2377         for (cnt = 0; cnt < 4; cnt++) {
2378                 if (ixj_WriteDSPCommand(0x5154 + cnt, j)) {
2379                         if(ixjdebug & 0x0001) {
2380                                 printk(KERN_INFO "Select Filter %d failed!\n", cnt);
2381                         }
2382                         return -1;
2383                 }
2384                 if (ixj_WriteDSPCommand(0x515C, j)) {
2385                         if(ixjdebug & 0x0001) {
2386                                 printk(KERN_INFO "Read Filter History %d failed!\n", cnt);
2387                         }
2388                         return -1;
2389                 }
2390                 j->filter_hist[cnt] = j->ssr.high << 8 | j->ssr.low;
2391
2392                 if (j->cadence_f[cnt].enable) {
2393                         if (j->filter_hist[cnt] & 3 && !(j->filter_hist[cnt] & 12)) {
2394                                 if (j->cadence_f[cnt].state == 0) {
2395                                         j->cadence_f[cnt].state = 1;
2396                                         j->cadence_f[cnt].on1min = jiffies + (long)((j->cadence_f[cnt].on1 * (hertz * (100 - var)) / 10000));
2397                                         j->cadence_f[cnt].on1dot = jiffies + (long)((j->cadence_f[cnt].on1 * (hertz * (100)) / 10000));
2398                                         j->cadence_f[cnt].on1max = jiffies + (long)((j->cadence_f[cnt].on1 * (hertz * (100 + var)) / 10000));
2399                                 } else if (j->cadence_f[cnt].state == 2 &&
2400                                            (time_after(jiffies, j->cadence_f[cnt].off1min) &&
2401                                             time_before(jiffies, j->cadence_f[cnt].off1max))) {
2402                                         if (j->cadence_f[cnt].on2) {
2403                                                 j->cadence_f[cnt].state = 3;
2404                                                 j->cadence_f[cnt].on2min = jiffies + (long)((j->cadence_f[cnt].on2 * (hertz * (100 - var)) / 10000));
2405                                                 j->cadence_f[cnt].on2dot = jiffies + (long)((j->cadence_f[cnt].on2 * (hertz * (100)) / 10000));
2406                                                 j->cadence_f[cnt].on2max = jiffies + (long)((j->cadence_f[cnt].on2 * (hertz * (100 + var)) / 10000));
2407                                         } else {
2408                                                 j->cadence_f[cnt].state = 7;
2409                                         }
2410                                 } else if (j->cadence_f[cnt].state == 4 &&
2411                                            (time_after(jiffies, j->cadence_f[cnt].off2min) &&
2412                                             time_before(jiffies, j->cadence_f[cnt].off2max))) {
2413                                         if (j->cadence_f[cnt].on3) {
2414                                                 j->cadence_f[cnt].state = 5;
2415                                                 j->cadence_f[cnt].on3min = jiffies + (long)((j->cadence_f[cnt].on3 * (hertz * (100 - var)) / 10000));
2416                                                 j->cadence_f[cnt].on3dot = jiffies + (long)((j->cadence_f[cnt].on3 * (hertz * (100)) / 10000));
2417                                                 j->cadence_f[cnt].on3max = jiffies + (long)((j->cadence_f[cnt].on3 * (hertz * (100 + var)) / 10000));
2418                                         } else {
2419                                                 j->cadence_f[cnt].state = 7;
2420                                         }
2421                                 } else {
2422                                         j->cadence_f[cnt].state = 0;
2423                                 }
2424                         } else if (j->filter_hist[cnt] & 12 && !(j->filter_hist[cnt] & 3)) {
2425                                 if (j->cadence_f[cnt].state == 1) {
2426                                         if(!j->cadence_f[cnt].on1) {
2427                                                 j->cadence_f[cnt].state = 7;
2428                                         } else if((time_after(jiffies, j->cadence_f[cnt].on1min) &&
2429                                           time_before(jiffies, j->cadence_f[cnt].on1max))) {
2430                                                 if(j->cadence_f[cnt].off1) {
2431                                                         j->cadence_f[cnt].state = 2;
2432                                                         j->cadence_f[cnt].off1min = jiffies + (long)((j->cadence_f[cnt].off1 * (hertz * (100 - var)) / 10000));
2433                                                         j->cadence_f[cnt].off1dot = jiffies + (long)((j->cadence_f[cnt].off1 * (hertz * (100)) / 10000));
2434                                                         j->cadence_f[cnt].off1max = jiffies + (long)((j->cadence_f[cnt].off1 * (hertz * (100 + var)) / 10000));
2435                                                 } else {
2436                                                         j->cadence_f[cnt].state = 7;
2437                                                 }
2438                                         } else {
2439                                                 j->cadence_f[cnt].state = 0;
2440                                         }
2441                                 } else if (j->cadence_f[cnt].state == 3) {
2442                                         if((time_after(jiffies, j->cadence_f[cnt].on2min) &&
2443                                             time_before(jiffies, j->cadence_f[cnt].on2max))) {
2444                                                 if(j->cadence_f[cnt].off2) {
2445                                                         j->cadence_f[cnt].state = 4;
2446                                                         j->cadence_f[cnt].off2min = jiffies + (long)((j->cadence_f[cnt].off2 * (hertz * (100 - var)) / 10000));
2447                                                         j->cadence_f[cnt].off2dot = jiffies + (long)((j->cadence_f[cnt].off2 * (hertz * (100)) / 10000));
2448                                                         j->cadence_f[cnt].off2max = jiffies + (long)((j->cadence_f[cnt].off2 * (hertz * (100 + var)) / 10000));
2449                                                 } else {
2450                                                         j->cadence_f[cnt].state = 7;
2451                                                 }
2452                                         } else {
2453                                                 j->cadence_f[cnt].state = 0;
2454                                         }
2455                                 } else if (j->cadence_f[cnt].state == 5) {
2456                                         if ((time_after(jiffies, j->cadence_f[cnt].on3min) &&
2457                                             time_before(jiffies, j->cadence_f[cnt].on3max))) {
2458                                                 if(j->cadence_f[cnt].off3) {
2459                                                         j->cadence_f[cnt].state = 6;
2460                                                         j->cadence_f[cnt].off3min = jiffies + (long)((j->cadence_f[cnt].off3 * (hertz * (100 - var)) / 10000));
2461                                                         j->cadence_f[cnt].off3dot = jiffies + (long)((j->cadence_f[cnt].off3 * (hertz * (100)) / 10000));
2462                                                         j->cadence_f[cnt].off3max = jiffies + (long)((j->cadence_f[cnt].off3 * (hertz * (100 + var)) / 10000));
2463                                                 } else {
2464                                                         j->cadence_f[cnt].state = 7;
2465                                                 }
2466                                         } else {
2467                                                 j->cadence_f[cnt].state = 0;
2468                                         }
2469                                 } else {
2470                                         j->cadence_f[cnt].state = 0;
2471                                 }
2472                         } else {
2473                                 switch(j->cadence_f[cnt].state) {
2474                                         case 1:
2475                                                 if(time_after(jiffies, j->cadence_f[cnt].on1dot) &&
2476                                                    !j->cadence_f[cnt].off1 &&
2477                                                    !j->cadence_f[cnt].on2 && !j->cadence_f[cnt].off2 &&
2478                                                    !j->cadence_f[cnt].on3 && !j->cadence_f[cnt].off3) {
2479                                                         j->cadence_f[cnt].state = 7;
2480                                                 }
2481                                                 break;
2482                                         case 3:
2483                                                 if(time_after(jiffies, j->cadence_f[cnt].on2dot) &&
2484                                                    !j->cadence_f[cnt].off2 &&
2485                                                    !j->cadence_f[cnt].on3 && !j->cadence_f[cnt].off3) {
2486                                                         j->cadence_f[cnt].state = 7;
2487                                                 }
2488                                                 break;
2489                                         case 5:
2490                                                 if(time_after(jiffies, j->cadence_f[cnt].on3dot) &&
2491                                                    !j->cadence_f[cnt].off3) {
2492                                                         j->cadence_f[cnt].state = 7;
2493                                                 }
2494                                                 break;
2495                                 }
2496                         }
2497
2498                         if (ixjdebug & 0x0040) {
2499                                 printk(KERN_INFO "IXJ Tone Cadence state = %d /dev/phone%d at %ld\n", j->cadence_f[cnt].state, j->board, jiffies);
2500                                 switch(j->cadence_f[cnt].state) {
2501                                         case 0:
2502                                                 printk(KERN_INFO "IXJ /dev/phone%d No Tone detected\n", j->board);
2503                                                 break;
2504                                         case 1:
2505                                                 printk(KERN_INFO "IXJ /dev/phone%d Next Tone Cadence state at %u %ld - %ld - %ld\n", j->board,
2506                                         j->cadence_f[cnt].on1, j->cadence_f[cnt].on1min, j->cadence_f[cnt].on1dot, j->cadence_f[cnt].on1max);
2507                                                 break;
2508                                         case 2:
2509                                                 printk(KERN_INFO "IXJ /dev/phone%d Next Tone Cadence state at %ld - %ld\n", j->board, j->cadence_f[cnt].off1min,
2510                                                                                                                         j->cadence_f[cnt].off1max);
2511                                                 break;
2512                                         case 3:
2513                                                 printk(KERN_INFO "IXJ /dev/phone%d Next Tone Cadence state at %ld - %ld\n", j->board, j->cadence_f[cnt].on2min,
2514                                                                                                                         j->cadence_f[cnt].on2max);
2515                                                 break;
2516                                         case 4:
2517                                                 printk(KERN_INFO "IXJ /dev/phone%d Next Tone Cadence state at %ld - %ld\n", j->board, j->cadence_f[cnt].off2min,
2518                                                                                                                         j->cadence_f[cnt].off2max);
2519                                                 break;
2520                                         case 5:
2521                                                 printk(KERN_INFO "IXJ /dev/phone%d Next Tone Cadence state at %ld - %ld\n", j->board, j->cadence_f[cnt].on3min,
2522                                                                                                                         j->cadence_f[cnt].on3max);
2523                                                 break;
2524                                         case 6:
2525                                                 printk(KERN_INFO "IXJ /dev/phone%d Next Tone Cadence state at %ld - %ld\n", j->board, j->cadence_f[cnt].off3min,
2526                                                                                                                         j->cadence_f[cnt].off3max);
2527                                                 break;
2528                                 }
2529                         }
2530                 }
2531                 if (j->cadence_f[cnt].state == 7) {
2532                         j->cadence_f[cnt].state = 0;
2533                         if (j->cadence_f[cnt].enable == 1)
2534                                 j->cadence_f[cnt].enable = 0;
2535                         switch (cnt) {
2536                         case 0:
2537                                 if(ixjdebug & 0x0020) {
2538                                         printk(KERN_INFO "Filter Cadence 0 triggered %ld\n", jiffies);
2539                                 }
2540                                 j->ex.bits.fc0 = 1;
2541                                 ixj_kill_fasync(j, SIG_FC0, POLL_IN);
2542                                 break;
2543                         case 1:
2544                                 if(ixjdebug & 0x0020) {
2545                                         printk(KERN_INFO "Filter Cadence 1 triggered %ld\n", jiffies);
2546                                 }
2547                                 j->ex.bits.fc1 = 1;
2548                                 ixj_kill_fasync(j, SIG_FC1, POLL_IN);
2549                                 break;
2550                         case 2:
2551                                 if(ixjdebug & 0x0020) {
2552                                         printk(KERN_INFO "Filter Cadence 2 triggered %ld\n", jiffies);
2553                                 }
2554                                 j->ex.bits.fc2 = 1;
2555                                 ixj_kill_fasync(j, SIG_FC2, POLL_IN);
2556                                 break;
2557                         case 3:
2558                                 if(ixjdebug & 0x0020) {
2559                                         printk(KERN_INFO "Filter Cadence 3 triggered %ld\n", jiffies);
2560                                 }
2561                                 j->ex.bits.fc3 = 1;
2562                                 ixj_kill_fasync(j, SIG_FC3, POLL_IN);
2563                                 break;
2564                         }
2565                 }
2566                 if (j->filter_en[cnt] && ((j->filter_hist[cnt] & 3 && !(j->filter_hist[cnt] & 12)) ||
2567                                           (j->filter_hist[cnt] & 12 && !(j->filter_hist[cnt] & 3)))) {
2568                         if((j->filter_hist[cnt] & 3 && !(j->filter_hist[cnt] & 12))) {
2569                                 trg = 1;
2570                         } else if((j->filter_hist[cnt] & 12 && !(j->filter_hist[cnt] & 3))) {
2571                                 trg = 0;
2572                         }
2573                         switch (cnt) {
2574                         case 0:
2575                                 if(ixjdebug & 0x0020) {
2576                                         printk(KERN_INFO "Filter 0 triggered %d at %ld\n", trg, jiffies);
2577                                 }
2578                                 j->ex.bits.f0 = 1;
2579                                 ixj_kill_fasync(j, SIG_F0, POLL_IN);
2580                                 break;
2581                         case 1:
2582                                 if(ixjdebug & 0x0020) {
2583                                         printk(KERN_INFO "Filter 1 triggered %d at %ld\n", trg, jiffies);
2584                                 }
2585                                 j->ex.bits.f1 = 1;
2586                                 ixj_kill_fasync(j, SIG_F1, POLL_IN);
2587                                 break;
2588                         case 2:
2589                                 if(ixjdebug & 0x0020) {
2590                                         printk(KERN_INFO "Filter 2 triggered %d at %ld\n", trg, jiffies);
2591                                 }
2592                                 j->ex.bits.f2 = 1;
2593                                 ixj_kill_fasync(j, SIG_F2, POLL_IN);
2594                                 break;
2595                         case 3:
2596                                 if(ixjdebug & 0x0020) {
2597                                         printk(KERN_INFO "Filter 3 triggered %d at %ld\n", trg, jiffies);
2598                                 }
2599                                 j->ex.bits.f3 = 1;
2600                                 ixj_kill_fasync(j, SIG_F3, POLL_IN);
2601                                 break;
2602                         }
2603                 }
2604         }
2605         return 0;
2606 }
2607
2608 static in