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 int LineMonitor(IXJ *j)
2609 {
2610         if (j->dtmf_proc) {
2611                 return -1;
2612         }
2613         j->dtmf_proc = 1;
2614
2615         if (ixj_WriteDSPCommand(0x7000, j))             /* Line Monitor */
2616                 return -1;
2617
2618         j->dtmf.bytes.high = j->ssr.high;
2619         j->dtmf.bytes.low = j->ssr.low;
2620         if (!j->dtmf_state && j->dtmf.bits.dtmf_valid) {
2621                 j->dtmf_state = 1;
2622                 j->dtmf_current = j->dtmf.bits.digit;
2623         }
2624         if (j->dtmf_state && !j->dtmf.bits.dtmf_valid)  /* && j->dtmf_wp != j->dtmf_rp) */
2625          {
2626                 if(!j->cidcw_wait) {
2627                         j->dtmfbuffer[j->dtmf_wp] = j->dtmf_current;
2628                         j->dtmf_wp++;
2629                         if (j->dtmf_wp == 79)
2630                                 j->dtmf_wp = 0;
2631                         j->ex.bits.dtmf_ready = 1;
2632                         if(j->ex_sig.bits.dtmf_ready) {
2633                                 ixj_kill_fasync(j, SIG_DTMF_READY, POLL_IN);
2634                         }
2635                 }
2636                 else if(j->dtmf_current == 0x00 || j->dtmf_current == 0x0D) {
2637                         if(ixjdebug & 0x0020) {
2638                                 printk("IXJ phone%d saw CIDCW Ack DTMF %d from display at %ld\n", j->board, j->dtmf_current, jiffies);
2639                         }
2640                         j->flags.cidcw_ack = 1;
2641                 }
2642                 j->dtmf_state = 0;
2643         }
2644         j->dtmf_proc = 0;
2645
2646         return 0;
2647 }
2648
2649 /************************************************************************
2650 *
2651 * Functions to allow alaw <-> ulaw conversions.
2652 *
2653 ************************************************************************/
2654
2655 static void ulaw2alaw(unsigned char *buff, unsigned long len)
2656 {
2657         static unsigned char table_ulaw2alaw[] =
2658         {
2659                 0x2A, 0x2B, 0x28, 0x29, 0x2E, 0x2F, 0x2C, 0x2D,
2660                 0x22, 0x23, 0x20, 0x21, 0x26, 0x27, 0x24, 0x25,
2661                 0x3A, 0x3B, 0x38, 0x39, 0x3E, 0x3F, 0x3C, 0x3D,
2662                 0x32, 0x33, 0x30, 0x31, 0x36, 0x37, 0x34, 0x35,
2663                 0x0B, 0x08, 0x09, 0x0E, 0x0F, 0x0C, 0x0D, 0x02,
2664                 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05, 0x1A,
2665                 0x1B, 0x18, 0x19, 0x1E, 0x1F, 0x1C, 0x1D, 0x12,
2666                 0x13, 0x10, 0x11, 0x16, 0x17, 0x14, 0x15, 0x6B,
2667                 0x68, 0x69, 0x6E, 0x6F, 0x6C, 0x6D, 0x62, 0x63,
2668                 0x60, 0x61, 0x66, 0x67, 0x64, 0x65, 0x7B, 0x79,
2669                 0x7E, 0x7F, 0x7C, 0x7D, 0x72, 0x73, 0x70, 0x71,
2670                 0x76, 0x77, 0x74, 0x75, 0x4B, 0x49, 0x4F, 0x4D,
2671                 0x42, 0x43, 0x40, 0x41, 0x46, 0x47, 0x44, 0x45,
2672                 0x5A, 0x5B, 0x58, 0x59, 0x5E, 0x5F, 0x5C, 0x5D,
2673                 0x52, 0x52, 0x53, 0x53, 0x50, 0x50, 0x51, 0x51,
2674                 0x56, 0x56, 0x57, 0x57, 0x54, 0x54, 0x55, 0xD5,
2675                 0xAA, 0xAB, 0xA8, 0xA9, 0xAE, 0xAF, 0xAC, 0xAD,
2676                 0xA2, 0xA3, 0xA0, 0xA1, 0xA6, 0xA7, 0xA4, 0xA5,
2677                 0xBA, 0xBB, 0xB8, 0xB9, 0xBE, 0xBF, 0xBC, 0xBD,
2678                 0xB2, 0xB3, 0xB0, 0xB1, 0xB6, 0xB7, 0xB4, 0xB5,
2679                 0x8B, 0x88, 0x89, 0x8E, 0x8F, 0x8C, 0x8D, 0x82,
2680                 0x83, 0x80, 0x81, 0x86, 0x87, 0x84, 0x85, 0x9A,
2681                 0x9B, 0x98, 0x99, 0x9E, 0x9F, 0x9C, 0x9D, 0x92,
2682                 0x93, 0x90, 0x91, 0x96, 0x97, 0x94, 0x95, 0xEB,
2683                 0xE8, 0xE9, 0xEE, 0xEF, 0xEC, 0xED, 0xE2, 0xE3,
2684                 0xE0, 0xE1, 0xE6, 0xE7, 0xE4, 0xE5, 0xFB, 0xF9,
2685                 0xFE, 0xFF, 0xFC, 0xFD, 0xF2, 0xF3, 0xF0, 0xF1,
2686                 0xF6, 0xF7, 0xF4, 0xF5, 0xCB, 0xC9, 0xCF, 0xCD,
2687                 0xC2, 0xC3, 0xC0, 0xC1, 0xC6, 0xC7, 0xC4, 0xC5,
2688                 0xDA, 0xDB, 0xD8, 0xD9, 0xDE, 0xDF, 0xDC, 0xDD,
2689                 0xD2, 0xD2, 0xD3, 0xD3, 0xD0, 0xD0, 0xD1, 0xD1,
2690                 0xD6, 0xD6, 0xD7, 0xD7, 0xD4, 0xD4, 0xD5, 0xD5
2691         };
2692
2693         while (len--)
2694         {
2695                 *buff = table_ulaw2alaw[*(unsigned char *)buff];
2696                 buff++;
2697         }
2698 }
2699
2700 static void alaw2ulaw(unsigned char *buff, unsigned long len)
2701 {
2702         static unsigned char table_alaw2ulaw[] =
2703         {
2704                 0x29, 0x2A, 0x27, 0x28, 0x2D, 0x2E, 0x2B, 0x2C,
2705                 0x21, 0x22, 0x1F, 0x20, 0x25, 0x26, 0x23, 0x24,
2706                 0x39, 0x3A, 0x37, 0x38, 0x3D, 0x3E, 0x3B, 0x3C,
2707                 0x31, 0x32, 0x2F, 0x30, 0x35, 0x36, 0x33, 0x34,
2708                 0x0A, 0x0B, 0x08, 0x09, 0x0E, 0x0F, 0x0C, 0x0D,
2709                 0x02, 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05,
2710                 0x1A, 0x1B, 0x18, 0x19, 0x1E, 0x1F, 0x1C, 0x1D,
2711                 0x12, 0x13, 0x10, 0x11, 0x16, 0x17, 0x14, 0x15,
2712                 0x62, 0x63, 0x60, 0x61, 0x66, 0x67, 0x64, 0x65,
2713                 0x5D, 0x5D, 0x5C, 0x5C, 0x5F, 0x5F, 0x5E, 0x5E,
2714                 0x74, 0x76, 0x70, 0x72, 0x7C, 0x7E, 0x78, 0x7A,
2715                 0x6A, 0x6B, 0x68, 0x69, 0x6E, 0x6F, 0x6C, 0x6D,
2716                 0x48, 0x49, 0x46, 0x47, 0x4C, 0x4D, 0x4A, 0x4B,
2717                 0x40, 0x41, 0x3F, 0x3F, 0x44, 0x45, 0x42, 0x43,
2718                 0x56, 0x57, 0x54, 0x55, 0x5A, 0x5B, 0x58, 0x59,
2719                 0x4F, 0x4F, 0x4E, 0x4E, 0x52, 0x53, 0x50, 0x51,
2720                 0xA9, 0xAA, 0xA7, 0xA8, 0xAD, 0xAE, 0xAB, 0xAC,
2721                 0xA1, 0xA2, 0x9F, 0xA0, 0xA5, 0xA6, 0xA3, 0xA4,
2722                 0xB9, 0xBA, 0xB7, 0xB8, 0xBD, 0xBE, 0xBB, 0xBC,
2723                 0xB1, 0xB2, 0xAF, 0xB0, 0xB5, 0xB6, 0xB3, 0xB4,
2724                 0x8A, 0x8B, 0x88, 0x89, 0x8E, 0x8F, 0x8C, 0x8D,
2725                 0x82, 0x83, 0x80, 0x81, 0x86, 0x87, 0x84, 0x85,
2726                 0x9A, 0x9B, 0x98, 0x99, 0x9E, 0x9F, 0x9C, 0x9D,
2727                 0x92, 0x93, 0x90, 0x91, 0x96, 0x97, 0x94, 0x95,
2728                 0xE2, 0xE3, 0xE0, 0xE1, 0xE6, 0xE7, 0xE4, 0xE5,
2729                 0xDD, 0xDD, 0xDC, 0xDC, 0xDF, 0xDF, 0xDE, 0xDE,
2730                 0xF4, 0xF6, 0xF0, 0xF2, 0xFC, 0xFE, 0xF8, 0xFA,
2731                 0xEA, 0xEB, 0xE8, 0xE9, 0xEE, 0xEF, 0xEC, 0xED,
2732                 0xC8, 0xC9, 0xC6, 0xC7, 0xCC, 0xCD, 0xCA, 0xCB,
2733                 0xC0, 0xC1, 0xBF, 0xBF, 0xC4, 0xC5, 0xC2, 0xC3,
2734                 0xD6, 0xD7, 0xD4, 0xD5, 0xDA, 0xDB, 0xD8, 0xD9,
2735                 0xCF, 0xCF, 0xCE, 0xCE, 0xD2, 0xD3, 0xD0, 0xD1
2736         };
2737
2738         while (len--)
2739         {
2740                 *buff = table_alaw2ulaw[*(unsigned char *)buff];
2741                 buff++;
2742         }
2743 }
2744
2745 static ssize_t ixj_read(struct file * file_p, char __user *buf, size_t length, loff_t * ppos)
2746 {
2747         unsigned long i = *ppos;
2748         IXJ * j = get_ixj(NUM(file_p->f_path.dentry->d_inode));
2749
2750         DECLARE_WAITQUEUE(wait, current);
2751
2752         if (j->flags.inread)
2753                 return -EALREADY;
2754
2755         j->flags.inread = 1;
2756
2757         add_wait_queue(&j->read_q, &wait);
2758         set_current_state(TASK_INTERRUPTIBLE);
2759         mb();
2760
2761         while (!j->read_buffer_ready || (j->dtmf_state && j->flags.dtmf_oob)) {
2762                 ++j->read_wait;
2763                 if (file_p->f_flags & O_NONBLOCK) {
2764                         set_current_state(TASK_RUNNING);
2765                         remove_wait_queue(&j->read_q, &wait);
2766                         j->flags.inread = 0;
2767                         return -EAGAIN;
2768                 }
2769                 if (!ixj_hookstate(j)) {
2770                         set_current_state(TASK_RUNNING);
2771                         remove_wait_queue(&j->read_q, &wait);
2772                         j->flags.inread = 0;
2773                         return 0;
2774                 }
2775                 interruptible_sleep_on(&j->read_q);
2776                 if (signal_pending(current)) {
2777                         set_current_state(TASK_RUNNING);
2778                         remove_wait_queue(&j->read_q, &wait);
2779                         j->flags.inread = 0;
2780                         return -EINTR;
2781                 }
2782         }
2783
2784         remove_wait_queue(&j->read_q, &wait);
2785         set_current_state(TASK_RUNNING);
2786         /* Don't ever copy more than the user asks */
2787         if(j->rec_codec == ALAW)
2788                 ulaw2alaw(j->read_buffer, min(length, j->read_buffer_size));
2789         i = copy_to_user(buf, j->read_buffer, min(length, j->read_buffer_size));
2790         j->read_buffer_ready = 0;
2791         if (i) {
2792                 j->flags.inread = 0;
2793                 return -EFAULT;
2794         } else {
2795                 j->flags.inread = 0;
2796                 return min(length, j->read_buffer_size);
2797         }
2798 }
2799
2800 static ssize_t ixj_enhanced_read(struct file * file_p, char __user *buf, size_t length,
2801                           loff_t * ppos)
2802 {
2803         int pre_retval;
2804         ssize_t read_retval = 0;
2805         IXJ *j = get_ixj(NUM(file_p->f_path.dentry->d_inode));
2806
2807         pre_retval = ixj_PreRead(j, 0L);
2808         switch (pre_retval) {
2809         case NORMAL:
2810                 read_retval = ixj_read(file_p, buf, length, ppos);
2811                 ixj_PostRead(j, 0L);
2812                 break;
2813         case NOPOST:
2814                 read_retval = ixj_read(file_p, buf, length, ppos);
2815                 break;
2816         case POSTONLY:
2817                 ixj_PostRead(j, 0L);
2818                 break;
2819         default:
2820                 read_retval = pre_retval;
2821         }
2822         return read_retval;
2823 }
2824
2825 static ssize_t ixj_write(struct file *file_p, const char __user *buf, size_t count, loff_t * ppos)
2826 {
2827         unsigned long i = *ppos;
2828         IXJ *j = file_p->private_data;
2829
2830         DECLARE_WAITQUEUE(wait, current);
2831
2832         if (j->flags.inwrite)
2833                 return -EALREADY;
2834
2835         j->flags.inwrite = 1;
2836
2837         add_wait_queue(&j->write_q, &wait);
2838         set_current_state(TASK_INTERRUPTIBLE);
2839         mb();
2840
2841
2842         while (!j->write_buffers_empty) {
2843                 ++j->write_wait;
2844                 if (file_p->f_flags & O_NONBLOCK) {
2845                         set_current_state(TASK_RUNNING);
2846                         remove_wait_queue(&j->write_q, &wait);
2847                         j->flags.inwrite = 0;
2848                         return -EAGAIN;
2849                 }
2850                 if (!ixj_hookstate(j)) {
2851                         set_current_state(TASK_RUNNING);
2852                         remove_wait_queue(&j->write_q, &wait);
2853                         j->flags.inwrite = 0;
2854                         return 0;
2855                 }
2856                 interruptible_sleep_on(&j->write_q);
2857                 if (signal_pending(current)) {
2858                         set_current_state(TASK_RUNNING);
2859                         remove_wait_queue(&j->write_q, &wait);
2860                         j->flags.inwrite = 0;
2861                         return -EINTR;
2862                 }
2863         }
2864         set_current_state(TASK_RUNNING);
2865         remove_wait_queue(&j->write_q, &wait);
2866         if (j->write_buffer_wp + count >= j->write_buffer_end)
2867                 j->write_buffer_wp = j->write_buffer;
2868         i = copy_from_user(j->write_buffer_wp, buf, min(count, j->write_buffer_size));
2869         if (i) {
2870                 j->flags.inwrite = 0;
2871                 return -EFAULT;
2872         }
2873        if(j->play_codec == ALAW)
2874                alaw2ulaw(j->write_buffer_wp, min(count, j->write_buffer_size));
2875         j->flags.inwrite = 0;
2876         return min(count, j->write_buffer_size);
2877 }
2878
2879 static ssize_t ixj_enhanced_write(struct file * file_p, const char __user *buf, size_t count, loff_t * ppos)
2880 {
2881         int pre_retval;
2882         ssize_t write_retval = 0;
2883
2884         IXJ *j = get_ixj(NUM(file_p->f_path.dentry->d_inode));
2885
2886         pre_retval = ixj_PreWrite(j, 0L);
2887         switch (pre_retval) {
2888         case NORMAL:
2889                 write_retval = ixj_write(file_p, buf, count, ppos);
2890                 if (write_retval > 0) {
2891                         ixj_PostWrite(j, 0L);
2892                         j->write_buffer_wp += write_retval;
2893                         j->write_buffers_empty--;
2894                 }
2895                 break;
2896         case NOPOST:
2897                 write_retval = ixj_write(file_p, buf, count, ppos);
2898                 if (write_retval > 0) {
2899                         j->write_buffer_wp += write_retval;
2900                         j->write_buffers_empty--;
2901                 }
2902                 break;
2903         case POSTONLY:
2904                 ixj_PostWrite(j, 0L);
2905                 break;
2906         default:
2907                 write_retval = pre_retval;
2908         }
2909         return write_retval;
2910 }
2911
2912 static void ixj_read_frame(IXJ *j)
2913 {
2914         int cnt, dly;
2915
2916         if (j->read_buffer) {
2917                 for (cnt = 0; cnt < j->rec_frame_size * 2; cnt += 2) {
2918                         if (!(cnt % 16) && !IsRxReady(j)) {
2919                                 dly = 0;
2920                                 while (!IsRxReady(j)) {
2921                                         if (dly++ > 5) {
2922                                                 dly = 0;
2923                                                 break;
2924                                         }
2925                                         udelay(10);
2926                                 }
2927                         }
2928                         /* Throw away word 0 of the 8021 compressed format to get standard G.729. */
2929                         if (j->rec_codec == G729 && (cnt == 0 || cnt == 10 || cnt == 20)) {
2930                                 inb_p(j->DSPbase + 0x0E);
2931                                 inb_p(j->DSPbase + 0x0F);
2932                         }
2933                         *(j->read_buffer + cnt) = inb_p(j->DSPbase + 0x0E);
2934                         *(j->read_buffer + cnt + 1) = inb_p(j->DSPbase + 0x0F);
2935                 }
2936                 ++j->framesread;
2937                 if (j->intercom != -1) {
2938                         if (IsTxReady(get_ixj(j->intercom))) {
2939                                 for (cnt = 0; cnt < j->rec_frame_size * 2; cnt += 2) {
2940                                         if (!(cnt % 16) && !IsTxReady(j)) {
2941                                                 dly = 0;
2942                                                 while (!IsTxReady(j)) {
2943                                                         if (dly++ > 5) {
2944                                                                 dly = 0;
2945                                                                 break;
2946                                                         }
2947                                                         udelay(10);
2948                                                 }
2949                                         }
2950                                         outb_p(*(j->read_buffer + cnt), get_ixj(j->intercom)->DSPbase + 0x0C);
2951                                         outb_p(*(j->read_buffer + cnt + 1), get_ixj(j->intercom)->DSPbase + 0x0D);
2952                                 }
2953                                 get_ixj(j->intercom)->frameswritten++;
2954                         }
2955                 } else {
2956                         j->read_buffer_ready = 1;
2957                         wake_up_interruptible(&j->read_q);      /* Wake any blocked readers */
2958
2959                         wake_up_interruptible(&j->poll_q);      /* Wake any blocked selects */
2960
2961                         if(j->ixj_signals[SIG_READ_READY])
2962                                 ixj_kill_fasync(j, SIG_READ_READY, POLL_OUT);
2963                 }
2964         }
2965 }
2966
2967 static short fsk[][6][20] =
2968 {
2969         {
2970     &nb