drivers/usb/atm/ueagle-atm.c

   1 /*-
   2  * Copyright (c) 2003, 2004
   3  *      Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
   4  *
   5  * Copyright (c) 2005-2007 Matthieu Castet <castet.matthieu@free.fr>
   6  * Copyright (c) 2005-2007 Stanislaw Gruszka <stf_xl@wp.pl>
   7  *
   8  * This software is available to you under a choice of one of two
   9  * licenses. You may choose to be licensed under the terms of the GNU
  10  * General Public License (GPL) Version 2, available from the file
  11  * COPYING in the main directory of this source tree, or the
  12  * BSD license below:
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions
  16  * are met:
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice unmodified, this list of conditions, and the following
  19  *    disclaimer.
  20  * 2. Redistributions in binary form must reproduce the above copyright
  21  *    notice, this list of conditions and the following disclaimer in the
  22  *    documentation and/or other materials provided with the distribution.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * GPL license :
  37  * This program is free software; you can redistribute it and/or
  38  * modify it under the terms of the GNU General Public License
  39  * as published by the Free Software Foundation; either version 2
  40  * of the License, or (at your option) any later version.
  41  *
  42  * This program is distributed in the hope that it will be useful,
  43  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  44  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  45  * GNU General Public License for more details.
  46  *
  47  * You should have received a copy of the GNU General Public License
  48  * along with this program; if not, write to the Free Software
  49  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  50  *
  51  *
  52  * HISTORY : some part of the code was base on ueagle 1.3 BSD driver,
  53  * Damien Bergamini agree to put his code under a DUAL GPL/BSD license.
  54  *
  55  * The rest of the code was was rewritten from scratch.
  56  */
  57
  58 #include <linux/module.h>
  59 #include <linux/moduleparam.h>
  60 #include <linux/init.h>
  61 #include <linux/crc32.h>
  62 #include <linux/usb.h>
  63 #include <linux/firmware.h>
  64 #include <linux/ctype.h>
  65 #include <linux/sched.h>
  66 #include <linux/kthread.h>
  67 #include <linux/mutex.h>
  68 #include <linux/freezer.h>
  69 #include <linux/slab.h>
  70 #include <linux/kernel.h>
  71
  72 #include <asm/unaligned.h>
  73
  74 #include "usbatm.h"
  75
  76 #define EAGLEUSBVERSION "ueagle 1.4"
  77
  78
  79 /*
  80  * Debug macros
  81  */
  82 #define uea_dbg(usb_dev, format, args...)       \
  83         do { \
  84                 if (debug >= 1) \
  85                         dev_dbg(&(usb_dev)->dev, \
  86                                 "[ueagle-atm dbg] %s: " format, \
  87                                         __func__, ##args); \
  88         } while (0)
  89
  90 #define uea_vdbg(usb_dev, format, args...)      \
  91         do { \
  92                 if (debug >= 2) \
  93                         dev_dbg(&(usb_dev)->dev, \
  94                                 "[ueagle-atm vdbg]  " format, ##args); \
  95         } while (0)
  96
  97 #define uea_enters(usb_dev) \
  98         uea_vdbg(usb_dev, "entering %s\n" , __func__)
  99
 100 #define uea_leaves(usb_dev) \
 101         uea_vdbg(usb_dev, "leaving  %s\n" , __func__)
 102
 103 #define uea_err(usb_dev, format, args...) \
 104         dev_err(&(usb_dev)->dev , "[UEAGLE-ATM] " format , ##args)
 105
 106 #define uea_warn(usb_dev, format, args...) \
 107         dev_warn(&(usb_dev)->dev , "[Ueagle-atm] " format, ##args)
 108
 109 #define uea_info(usb_dev, format, args...) \
 110         dev_info(&(usb_dev)->dev , "[ueagle-atm] " format, ##args)
 111
 112 struct intr_pkt;
 113
 114 /* cmv's from firmware */
 115 struct uea_cmvs_v1 {
 116         u32 address;
 117         u16 offset;
 118         u32 data;
 119 } __attribute__ ((packed));
 120
 121 struct uea_cmvs_v2 {
 122         u32 group;
 123         u32 address;
 124         u32 offset;
 125         u32 data;
 126 } __attribute__ ((packed));
 127
 128 /* information about currently processed cmv */
 129 struct cmv_dsc_e1 {
 130         u8 function;
 131         u16 idx;
 132         u32 address;
 133         u16 offset;
 134 };
 135
 136 struct cmv_dsc_e4 {
 137         u16 function;
 138         u16 offset;
 139         u16 address;
 140         u16 group;
 141 };
 142
 143 union cmv_dsc {
 144         struct cmv_dsc_e1 e1;
 145         struct cmv_dsc_e4 e4;
 146 };
 147
 148 struct uea_softc {
 149         struct usb_device *usb_dev;
 150         struct usbatm_data *usbatm;
 151
 152         int modem_index;
 153         unsigned int driver_info;
 154         int annex;
 155 #define ANNEXA 0
 156 #define ANNEXB 1
 157
 158         int booting;
 159         int reset;
 160
 161         wait_queue_head_t sync_q;
 162
 163         struct task_struct *kthread;
 164         u32 data;
 165         u32 data1;
 166
 167         int cmv_ack;
 168         union cmv_dsc cmv_dsc;
 169
 170         struct work_struct task;
 171         struct workqueue_struct *work_q;
 172         u16 pageno;
 173         u16 ovl;
 174
 175         const struct firmware *dsp_firm;
 176         struct urb *urb_int;
 177
 178         void (*dispatch_cmv) (struct uea_softc *, struct intr_pkt *);
 179         void (*schedule_load_page) (struct uea_softc *, struct intr_pkt *);
 180         int (*stat) (struct uea_softc *);
 181         int (*send_cmvs) (struct uea_softc *);
 182
 183         /* keep in sync with eaglectl */
 184         struct uea_stats {
 185                 struct {
 186                         u32 state;
 187                         u32 flags;
 188                         u32 mflags;
 189                         u32 vidcpe;
 190                         u32 vidco;
 191                         u32 dsrate;
 192                         u32 usrate;
 193                         u32 dsunc;
 194                         u32 usunc;
 195                         u32 dscorr;
 196                         u32 uscorr;
 197                         u32 txflow;
 198                         u32 rxflow;
 199                         u32 usattenuation;
 200                         u32 dsattenuation;
 201                         u32 dsmargin;
 202                         u32 usmargin;
 203                         u32 firmid;
 204                 } phy;
 205         } stats;
 206 };
 207
 208 /*
 209  * Elsa IDs
 210  */
 211 #define ELSA_VID                0x05CC
 212 #define ELSA_PID_PSTFIRM        0x3350
 213 #define ELSA_PID_PREFIRM        0x3351
 214
 215 #define ELSA_PID_A_PREFIRM      0x3352
 216 #define ELSA_PID_A_PSTFIRM      0x3353
 217 #define ELSA_PID_B_PREFIRM      0x3362
 218 #define ELSA_PID_B_PSTFIRM      0x3363
 219
 220 /*
 221  * Devolo IDs : pots if (pid & 0x10)
 222  */
 223 #define DEVOLO_VID                      0x1039
 224 #define DEVOLO_EAGLE_I_A_PID_PSTFIRM    0x2110
 225 #define DEVOLO_EAGLE_I_A_PID_PREFIRM    0x2111
 226
 227 #define DEVOLO_EAGLE_I_B_PID_PSTFIRM    0x2100
 228 #define DEVOLO_EAGLE_I_B_PID_PREFIRM    0x2101
 229
 230 #define DEVOLO_EAGLE_II_A_PID_PSTFIRM   0x2130
 231 #define DEVOLO_EAGLE_II_A_PID_PREFIRM   0x2131
 232
 233 #define DEVOLO_EAGLE_II_B_PID_PSTFIRM   0x2120
 234 #define DEVOLO_EAGLE_II_B_PID_PREFIRM   0x2121
 235
 236 /*
 237  * Reference design USB IDs
 238  */
 239 #define ANALOG_VID              0x1110
 240 #define ADI930_PID_PREFIRM      0x9001
 241 #define ADI930_PID_PSTFIRM      0x9000
 242
 243 #define EAGLE_I_PID_PREFIRM     0x9010  /* Eagle I */
 244 #define EAGLE_I_PID_PSTFIRM     0x900F  /* Eagle I */
 245
 246 #define EAGLE_IIC_PID_PREFIRM   0x9024  /* Eagle IIC */
 247 #define EAGLE_IIC_PID_PSTFIRM   0x9023  /* Eagle IIC */
 248
 249 #define EAGLE_II_PID_PREFIRM    0x9022  /* Eagle II */
 250 #define EAGLE_II_PID_PSTFIRM    0x9021  /* Eagle II */
 251
 252 #define EAGLE_III_PID_PREFIRM   0x9032  /* Eagle III */
 253 #define EAGLE_III_PID_PSTFIRM   0x9031  /* Eagle III */
 254
 255 #define EAGLE_IV_PID_PREFIRM    0x9042  /* Eagle IV */
 256 #define EAGLE_IV_PID_PSTFIRM    0x9041  /* Eagle IV */
 257
 258 /*
 259  * USR USB IDs
 260  */
 261 #define USR_VID                 0x0BAF
 262 #define MILLER_A_PID_PREFIRM    0x00F2
 263 #define MILLER_A_PID_PSTFIRM    0x00F1
 264 #define MILLER_B_PID_PREFIRM    0x00FA
 265 #define MILLER_B_PID_PSTFIRM    0x00F9
 266 #define HEINEKEN_A_PID_PREFIRM  0x00F6
 267 #define HEINEKEN_A_PID_PSTFIRM  0x00F5
 268 #define HEINEKEN_B_PID_PREFIRM  0x00F8
 269 #define HEINEKEN_B_PID_PSTFIRM  0x00F7
 270
 271 #define PREFIRM 0
 272 #define PSTFIRM (1<<7)
 273 #define AUTO_ANNEX_A (1<<8)
 274 #define AUTO_ANNEX_B (1<<9)
 275
 276 enum {
 277         ADI930 = 0,
 278         EAGLE_I,
 279         EAGLE_II,
 280         EAGLE_III,
 281         EAGLE_IV
 282 };
 283
 284 /* macros for both struct usb_device_id and struct uea_softc */
 285 #define UEA_IS_PREFIRM(x) \
 286         (!((x)->driver_info & PSTFIRM))
 287 #define UEA_CHIP_VERSION(x) \
 288         ((x)->driver_info & 0xf)
 289
 290 #define IS_ISDN(x) \
 291         ((x)->annex & ANNEXB)
 292
 293 #define INS_TO_USBDEV(ins) (ins->usb_dev)
 294
 295 #define GET_STATUS(data) \
 296         ((data >> 8) & 0xf)
 297
 298 #define IS_OPERATIONAL(sc) \
 299         ((UEA_CHIP_VERSION(sc) != EAGLE_IV) ? \
 300         (GET_STATUS(sc->stats.phy.state) == 2) : \
 301         (sc->stats.phy.state == 7))
 302
 303 /*
 304  * Set of macros to handle unaligned data in the firmware blob.
 305  * The FW_GET_BYTE() macro is provided only for consistency.
 306  */
 307
 308 #define FW_GET_BYTE(p) (*((__u8 *) (p)))
 309
 310 #define FW_DIR "ueagle-atm/"
 311 #define UEA_FW_NAME_MAX 30
 312 #define NB_MODEM 4
 313
 314 #define BULK_TIMEOUT 300
 315 #define CTRL_TIMEOUT 1000
 316
 317 #define ACK_TIMEOUT msecs_to_jiffies(3000)
 318
 319 #define UEA_INTR_IFACE_NO       0
 320 #define UEA_US_IFACE_NO         1
 321 #define UEA_DS_IFACE_NO         2
 322
 323 #define FASTEST_ISO_INTF        8
 324
 325 #define UEA_BULK_DATA_PIPE      0x02
 326 #define UEA_IDMA_PIPE           0x04
 327 #define UEA_INTR_PIPE           0x04
 328 #define UEA_ISO_DATA_PIPE       0x08
 329
 330 #define UEA_E1_SET_BLOCK        0x0001
 331 #define UEA_E4_SET_BLOCK        0x002c
 332 #define UEA_SET_MODE            0x0003
 333 #define UEA_SET_2183_DATA       0x0004
 334 #define UEA_SET_TIMEOUT         0x0011
 335
 336 #define UEA_LOOPBACK_OFF        0x0002
 337 #define UEA_LOOPBACK_ON         0x0003
 338 #define UEA_BOOT_IDMA           0x0006
 339 #define UEA_START_RESET         0x0007
 340 #define UEA_END_RESET           0x0008
 341
 342 #define UEA_SWAP_MAILBOX        (0x3fcd | 0x4000)
 343 #define UEA_MPTX_START          (0x3fce | 0x4000)
 344 #define UEA_MPTX_MAILBOX        (0x3fd6 | 0x4000)
 345 #define UEA_MPRX_MAILBOX        (0x3fdf | 0x4000)
 346
 347 /* block information in eagle4 dsp firmware  */
 348 struct block_index {
 349         __le32 PageOffset;
 350         __le32 NotLastBlock;
 351         __le32 dummy;
 352         __le32 PageSize;
 353         __le32 PageAddress;
 354         __le16 dummy1;
 355         __le16 PageNumber;
 356 } __attribute__ ((packed));
 357
 358 #define E4_IS_BOOT_PAGE(PageSize) ((le32_to_cpu(PageSize)) & 0x80000000)
 359 #define E4_PAGE_BYTES(PageSize) ((le32_to_cpu(PageSize) & 0x7fffffff) * 4)
 360
 361 #define E4_L1_STRING_HEADER 0x10
 362 #define E4_MAX_PAGE_NUMBER 0x58
 363 #define E4_NO_SWAPPAGE_HEADERS 0x31
 364
 365 /* l1_code is eagle4 dsp firmware format */
 366 struct l1_code {
 367         u8 string_header[E4_L1_STRING_HEADER];
 368         u8 page_number_to_block_index[E4_MAX_PAGE_NUMBER];
 369         struct block_index page_header[E4_NO_SWAPPAGE_HEADERS];
 370         u8 code[0];
 371 } __attribute__ ((packed));
 372
 373 /* structures describing a block within a DSP page */
 374 struct block_info_e1 {
 375         __le16 wHdr;
 376         __le16 wAddress;
 377         __le16 wSize;
 378         __le16 wOvlOffset;
 379         __le16 wOvl;            /* overlay */
 380         __le16 wLast;
 381 } __attribute__ ((packed));
 382 #define E1_BLOCK_INFO_SIZE 12
 383
 384 struct block_info_e4 {
 385         __be16 wHdr;
 386         __u8 bBootPage;
 387         __u8 bPageNumber;
 388         __be32 dwSize;
 389         __be32 dwAddress;
 390         __be16 wReserved;
 391 } __attribute__ ((packed));
 392 #define E4_BLOCK_INFO_SIZE 14
 393
 394 #define UEA_BIHDR 0xabcd
 395 #define UEA_RESERVED 0xffff
 396
 397 /* constants describing cmv type */
 398 #define E1_PREAMBLE 0x535c
 399 #define E1_MODEMTOHOST 0x01
 400 #define E1_HOSTTOMODEM 0x10
 401
 402 #define E1_MEMACCESS 0x1
 403 #define E1_ADSLDIRECTIVE 0x7
 404 #define E1_FUNCTION_TYPE(f) ((f) >> 4)
 405 #define E1_FUNCTION_SUBTYPE(f) ((f) & 0x0f)
 406
 407 #define E4_MEMACCESS 0
 408 #define E4_ADSLDIRECTIVE 0xf
 409 #define E4_FUNCTION_TYPE(f) ((f) >> 8)
 410 #define E4_FUNCTION_SIZE(f) ((f) & 0x0f)
 411 #define E4_FUNCTION_SUBTYPE(f) (((f) >> 4) & 0x0f)
 412
 413 /* for MEMACCESS */
 414 #define E1_REQUESTREAD  0x0
 415 #define E1_REQUESTWRITE 0x1
 416 #define E1_REPLYREAD    0x2
 417 #define E1_REPLYWRITE   0x3
 418
 419 #define E4_REQUESTREAD  0x0
 420 #define E4_REQUESTWRITE 0x4
 421 #define E4_REPLYREAD    (E4_REQUESTREAD | 1)
 422 #define E4_REPLYWRITE   (E4_REQUESTWRITE | 1)
 423
 424 /* for ADSLDIRECTIVE */
 425 #define E1_KERNELREADY 0x0
 426 #define E1_MODEMREADY  0x1
 427
 428 #define E4_KERNELREADY 0x0
 429 #define E4_MODEMREADY  0x1
 430
 431 #define E1_MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf))
 432 #define E4_MAKEFUNCTION(t, st, s) (((t) & 0xf) << 8 | \
 433         ((st) & 0xf) << 4 | ((s) & 0xf))
 434
 435 #define E1_MAKESA(a, b, c, d)                                           \
 436         (((c) & 0xff) << 24 |                                           \
 437          ((d) & 0xff) << 16 |                                           \
 438          ((a) & 0xff) << 8  |                                           \
 439          ((b) & 0xff))
 440
 441 #define E1_GETSA1(a) ((a >> 8) & 0xff)
 442 #define E1_GETSA2(a) (a & 0xff)
 443 #define E1_GETSA3(a) ((a >> 24) & 0xff)
 444 #define E1_GETSA4(a) ((a >> 16) & 0xff)
 445
 446 #define E1_SA_CNTL E1_MAKESA('C', 'N', 'T', 'L')
 447 #define E1_SA_DIAG E1_MAKESA('D', 'I', 'A', 'G')
 448 #define E1_SA_INFO E1_MAKESA('I', 'N', 'F', 'O')
 449 #define E1_SA_OPTN E1_MAKESA('O', 'P', 'T', 'N')
 450 #define E1_SA_RATE E1_MAKESA('R', 'A', 'T', 'E')
 451 #define E1_SA_STAT E1_MAKESA('S', 'T', 'A', 'T')
 452
 453 #define E4_SA_CNTL 1
 454 #define E4_SA_STAT 2
 455 #define E4_SA_INFO 3
 456 #define E4_SA_TEST 4
 457 #define E4_SA_OPTN 5
 458 #define E4_SA_RATE 6
 459 #define E4_SA_DIAG 7
 460 #define E4_SA_CNFG 8
 461
 462 /* structures representing a CMV (Configuration and Management Variable) */
 463 struct cmv_e1 {
 464         __le16 wPreamble;
 465         __u8 bDirection;
 466         __u8 bFunction;
 467         __le16 wIndex;
 468         __le32 dwSymbolicAddress;
 469         __le16 wOffsetAddress;
 470         __le32 dwData;
 471 } __attribute__ ((packed));
 472
 473 struct cmv_e4 {
 474         __be16 wGroup;
 475         __be16 wFunction;
 476         __be16 wOffset;
 477         __be16 wAddress;
 478         __be32 dwData[6];
 479 } __attribute__ ((packed));
 480
 481 /* structures representing swap information */
 482 struct swap_info_e1 {
 483         __u8 bSwapPageNo;
 484         __u8 bOvl;              /* overlay */
 485 } __attribute__ ((packed));
 486
 487 struct swap_info_e4 {
 488         __u8 bSwapPageNo;
 489 } __attribute__ ((packed));
 490
 491 /* structures representing interrupt data */
 492 #define e1_bSwapPageNo  u.e1.s1.swapinfo.bSwapPageNo
 493 #define e1_bOvl         u.e1.s1.swapinfo.bOvl
 494 #define e4_bSwapPageNo  u.e4.s1.swapinfo.bSwapPageNo
 495
 496 #define INT_LOADSWAPPAGE 0x0001
 497 #define INT_INCOMINGCMV  0x0002
 498
 499 union intr_data_e1 {
 500         struct {
 501                 struct swap_info_e1 swapinfo;
 502                 __le16 wDataSize;
 503         } __attribute__ ((packed)) s1;
 504         struct {
 505                 struct cmv_e1 cmv;
 506                 __le16 wDataSize;
 507         } __attribute__ ((packed)) s2;
 508 } __attribute__ ((packed));
 509
 510 union intr_data_e4 {
 511         struct {
 512                 struct swap_info_e4 swapinfo;
 513                 __le16 wDataSize;
 514         } __attribute__ ((packed)) s1;
 515         struct {
 516                 struct cmv_e4 cmv;
 517                 __le16 wDataSize;
 518         } __attribute__ ((packed)) s2;
 519 } __attribute__ ((packed));
 520
 521 struct intr_pkt {
 522         __u8 bType;
 523         __u8 bNotification;
 524         __le16 wValue;
 525         __le16 wIndex;
 526         __le16 wLength;
 527         __le16 wInterrupt;
 528         union {
 529                 union intr_data_e1 e1;
 530                 union intr_data_e4 e4;
 531         } u;
 532 } __attribute__ ((packed));
 533
 534 #define E1_INTR_PKT_SIZE 28
 535 #define E4_INTR_PKT_SIZE 64
 536
 537 static struct usb_driver uea_driver;
 538 static DEFINE_MUTEX(uea_mutex);
 539 static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III",
 540                                                                 "Eagle IV"};
 541
 542 static int modem_index;
 543 static unsigned int debug;
 544 static unsigned int altsetting[NB_MODEM] = {
 545                                 [0 ... (NB_MODEM - 1)] = FASTEST_ISO_INTF};
 546 static int sync_wait[NB_MODEM];
 547 static char *cmv_file[NB_MODEM];
 548 static int annex[NB_MODEM];
 549
 550 module_param(debug, uint, 0644);
 551 MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)");
 552 module_param_array(altsetting, uint, NULL, 0644);
 553 MODULE_PARM_DESC(altsetting, "alternate setting for incoming traffic: 0=bulk, "
 554                              "1=isoc slowest, ... , 8=isoc fastest (default)");
 555 module_param_array(sync_wait, bool, NULL, 0644);
 556 MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM");
 557 module_param_array(cmv_file, charp, NULL, 0644);
 558 MODULE_PARM_DESC(cmv_file,
 559                 "file name with configuration and management variables");
 560 module_param_array(annex, uint, NULL, 0644);
 561 MODULE_PARM_DESC(annex,
 562                 "manually set annex a/b (0=auto, 1=annex a, 2=annex b)");
 563
 564 #define uea_wait(sc, cond, timeo) \
 565 ({ \
 566         int _r = wait_event_interruptible_timeout(sc->sync_q, \
 567                         (cond) || kthread_should_stop(), timeo); \
 568         if (kthread_should_stop()) \
 569                 _r = -ENODEV; \
 570         _r; \
 571 })
 572
 573 #define UPDATE_ATM_STAT(type, val) \
 574         do { \
 575                 if (sc->usbatm->atm_dev) \
 576                         sc->usbatm->atm_dev->type = val; \
 577         } while (0)
 578
 579 #define UPDATE_ATM_SIGNAL(val) \
 580         do { \
 581                 if (sc->usbatm->atm_dev) \
 582                         atm_dev_signal_change(sc->usbatm->atm_dev, val); \
 583         } while (0)
 584
 585
 586 /* Firmware loading */
 587 #define LOAD_INTERNAL     0xA0
 588 #define F8051_USBCS       0x7f92
 589
 590 /**
 591  * uea_send_modem_cmd - Send a command for pre-firmware devices.
 592  */
 593 static int uea_send_modem_cmd(struct usb_device *usb,
 594                               u16 addr, u16 size, const u8 *buff)
 595 {
 596         int ret = -ENOMEM;
 597         u8 *xfer_buff;
 598
 599         xfer_buff = kmemdup(buff, size, GFP_KERNEL);
 600         if (xfer_buff) {
 601                 ret = usb_control_msg(usb,
 602                                       usb_sndctrlpipe(usb, 0),
 603                                       LOAD_INTERNAL,
 604                                       USB_DIR_OUT | USB_TYPE_VENDOR |
 605                                       USB_RECIP_DEVICE, addr, 0, xfer_buff,
 606                                       size, CTRL_TIMEOUT);
 607                 kfree(xfer_buff);
 608         }
 609
 610         if (ret < 0)
 611                 return ret;
 612
 613         return (ret == size) ? 0 : -EIO;
 614 }
 615
 616 static void uea_upload_pre_firmware(const struct firmware *fw_entry,
 617                                                                 void *context)
 618 {
 619         struct usb_device *usb = context;
 620         const u8 *pfw;
 621         u8 value;
 622         u32 crc = 0;
 623         int ret, size;
 624
 625         uea_enters(usb);
 626         if (!fw_entry) {
 627                 uea_err(usb, "firmware is not available\n");
 628                 goto err;
 629         }
 630
 631         pfw = fw_entry->data;
 632         size = fw_entry->size;
 633         if (size < 4)
 634                 goto err_fw_corrupted;
 635
 636         crc = get_unaligned_le32(pfw);
 637         pfw += 4;
 638         size -= 4;
 639         if (crc32_be(0, pfw, size) != crc)
 640                 goto err_fw_corrupted;
 641
 642         /*
 643          * Start to upload firmware : send reset
 644          */
 645         value = 1;
 646         ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value);
 647
 648         if (ret < 0) {
 649                 uea_err(usb, "modem reset failed with error %d\n", ret);
 650                 goto err;
 651         }
 652
 653         while (size > 3) {
 654                 u8 len = FW_GET_BYTE(pfw);
 655                 u16 add = get_unaligned_le16(pfw + 1);
 656
 657                 size -= len + 3;
 658                 if (size < 0)
 659                         goto err_fw_corrupted;
 660
 661                 ret = uea_send_modem_cmd(usb, add, len, pfw + 3);
 662                 if (ret < 0) {
 663                         uea_err(usb, "uploading firmware data failed "
 664                                         "with error %d\n", ret);
 665                         goto err;
 666                 }
 667                 pfw += len + 3;
 668         }
 669
 670         if (size != 0)
 671                 goto err_fw_corrupted;
 672
 673         /*
 674          * Tell the modem we finish : de-assert reset
 675          */
 676         value = 0;
 677         ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value);
 678         if (ret < 0)
 679                 uea_err(usb, "modem de-assert failed with error %d\n", ret);
 680         else
 681                 uea_info(usb, "firmware uploaded\n");
 682
 683         goto err;
 684
 685 err_fw_corrupted:
 686         uea_err(usb, "firmware is corrupted\n");
 687 err:
 688         release_firmware(fw_entry);
 689         uea_leaves(usb);
 690 }
 691
 692 /**
 693  * uea_load_firmware - Load usb firmware for pre-firmware devices.
 694  */
 695 static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
 696 {
 697         int ret;
 698         char *fw_name = FW_DIR "eagle.fw";
 699
 700         uea_enters(usb);
 701         uea_info(usb, "pre-firmware device, uploading firmware\n");
 702
 703         switch (ver) {
 704         case ADI930:
 705                 fw_name = FW_DIR "adi930.fw";
 706                 break;
 707         case EAGLE_I:
 708                 fw_name = FW_DIR "eagleI.fw";
 709                 break;
 710         case EAGLE_II:
 711                 fw_name = FW_DIR "eagleII.fw";
 712                 break;
 713         case EAGLE_III:
 714                 fw_name = FW_DIR "eagleIII.fw";
 715                 break;
 716         case EAGLE_IV:
 717                 fw_name = FW_DIR "eagleIV.fw";
 718                 break;
 719         }
 720
 721         ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev,
 722                                         GFP_KERNEL, usb,
 723                                         uea_upload_pre_firmware);
 724         if (ret)
 725                 uea_err(usb, "firmware %s is not available\n", fw_name);
 726         else
 727                 uea_info(usb, "loading firmware %s\n", fw_name);
 728
 729         uea_leaves(usb);
 730         return ret;
 731 }
 732
 733 /* modem management : dsp firmware, send/read CMV, monitoring statistic
 734  */
 735
 736 /*
 737  * Make sure that the DSP code provided is safe to use.
 738  */
 739 static int check_dsp_e1(const u8 *dsp, unsigned int len)
 740 {
 741         u8 pagecount, blockcount;
 742         u16 blocksize;
 743         u32 pageoffset;
 744         unsigned int i, j, p, pp;
 745
 746         pagecount = FW_GET_BYTE(dsp);
 747         p = 1;
 748
 749         /* enough space for page offsets? */
 750         if (p + 4 * pagecount > len)
 751                 return 1;
 752
 753         for (i = 0; i < pagecount; i++) {
 754
 755                 pageoffset = get_unaligned_le32(dsp + p);
 756                 p += 4;
 757
 758                 if (pageoffset == 0)
 759                         continue;
 760
 761                 /* enough space for blockcount? */
 762                 if (pageoffset >= len)
 763                         return 1;
 764
 765                 pp = pageoffset;
 766                 blockcount = FW_GET_BYTE(dsp + pp);
 767                 pp += 1;
 768
 769                 for (j = 0; j < blockcount; j++) {
 770
 771                         /* enough space for block header? */
 772                         if (pp + 4 > len)
 773                                 return 1;
 774
 775                         pp += 2;        /* skip blockaddr */
 776                         blocksize = get_unaligned_le16(dsp + pp);
 777                         pp += 2;
 778
 779                         /* enough space for block data? */
 780                         if (pp + blocksize > len)
 781                                 return 1;
 782
 783                         pp += blocksize;
 784                 }
 785         }
 786
 787         return 0;
 788 }
 789
 790 static int check_dsp_e4(const u8 *dsp, int len)
 791 {
 792         int i;
 793         struct l1_code *p = (struct l1_code *) dsp;
 794         unsigned int sum = p->code - dsp;
 795
 796         if (len < sum)
 797                 return 1;
 798
 799         if (strcmp("STRATIPHY ANEXA", p->string_header) != 0 &&
 800             strcmp("STRATIPHY ANEXB", p->string_header) != 0)
 801                 return 1;
 802
 803         for (i = 0; i < E4_MAX_PAGE_NUMBER; i++) {
 804                 struct block_index *blockidx;
 805                 u8 blockno = p->page_number_to_block_index[i];
 806                 if (blockno >= E4_NO_SWAPPAGE_HEADERS)
 807                         continue;
 808
 809                 do {
 810                         u64 l;
 811
 812                         if (blockno >= E4_NO_SWAPPAGE_HEADERS)
 813                                 return 1;
 814
 815                         blockidx = &p->page_header[blockno++];
 816                         if ((u8 *)(blockidx + 1) - dsp  >= len)
 817                                 return 1;
 818
 819                         if (le16_to_cpu(blockidx->PageNumber) != i)
 820                                 return 1;
 821
 822                         l = E4_PAGE_BYTES(blockidx->PageSize);
 823                         sum += l;
 824                         l += le32_to_cpu(blockidx->PageOffset);
 825                         if (l > len)
 826                                 return 1;
 827
 828                 /* zero is zero regardless endianes */
 829                 } while (blockidx->NotLastBlock);
 830         }
 831
 832         return (sum == len) ? 0 : 1;
 833 }
 834
 835 /*
 836  * send data to the idma pipe
 837  * */
 838 static int uea_idma_write(struct uea_softc *sc, const void *data, u32 size)
 839 {
 840         int ret = -ENOMEM;
 841         u8 *xfer_buff;
 842         int bytes_read;
 843
 844         xfer_buff = kmemdup(data, size, GFP_KERNEL);
 845         if (!xfer_buff) {
 846                 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
 847                 return ret;
 848         }
 849
 850         ret = usb_bulk_msg(sc->usb_dev,
 851                          usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
 852                          xfer_buff, size, &bytes_read, BULK_TIMEOUT);
 853
 854         kfree(xfer_buff);
 855         if (ret < 0)
 856                 return ret;
 857         if (size != bytes_read) {
 858                 uea_err(INS_TO_USBDEV(sc), "size != bytes_read %d %d\n", size,
 859                        bytes_read);
 860                 return -EIO;
 861         }
 862
 863         return 0;
 864 }
 865
 866 static int request_dsp(struct uea_softc *sc)
 867 {
 868         int ret;
 869         char *dsp_name;
 870
 871         if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
 872                 if (IS_ISDN(sc))
 873                         dsp_name = FW_DIR "DSP4i.bin";
 874                 else
 875                         dsp_name = FW_DIR "DSP4p.bin";
 876         } else if (UEA_CHIP_VERSION(sc) == ADI930) {
 877                 if (IS_ISDN(sc))
 878                         dsp_name = FW_DIR "DSP9i.bin";
 879                 else
 880                         dsp_name = FW_DIR "DSP9p.bin";
 881         } else {
 882                 if (IS_ISDN(sc))
 883                         dsp_name = FW_DIR "DSPei.bin";
 884                 else
 885                         dsp_name = FW_DIR "DSPep.bin";
 886         }
 887
 888         ret = request_firmware(&sc->dsp_firm, dsp_name, &sc->usb_dev->dev);
 889         if (ret < 0) {
 890                 uea_err(INS_TO_USBDEV(sc),
 891                        "requesting firmware %s failed with error %d\n",
 892                         dsp_name, ret);
 893                 return ret;
 894         }
 895
 896         if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
 897                 ret = check_dsp_e4(sc->dsp_firm->data, sc->dsp_firm->size);
 898         else
 899                 ret = check_dsp_e1(sc->dsp_firm->data, sc->dsp_firm->size);
 900
 901         if (ret) {
 902                 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
 903                        dsp_name);
 904                 release_firmware(sc->dsp_firm);
 905                 sc->dsp_firm = NULL;
 906                 return -EILSEQ;
 907         }
 908
 909         return 0;
 910 }
 911
 912 /*
 913  * The uea_load_page() function must be called within a process context
 914  */
 915 static void uea_load_page_e1(struct work_struct *work)
 916 {
 917         struct uea_softc *sc = container_of(work, struct uea_softc, task);
 918         u16 pageno = sc->pageno;
 919         u16 ovl = sc->ovl;
 920         struct block_info_e1 bi;
 921
 922         const u8 *p;
 923         u8 pagecount, blockcount;
 924         u16 blockaddr, blocksize;
 925         u32 pageoffset;
 926         int i;
 927
 928         /* reload firmware when reboot start and it's loaded already */
 929         if (ovl == 0 && pageno == 0 && sc->dsp_firm) {
 930                 release_firmware(sc->dsp_firm);
 931                 sc->dsp_firm = NULL;
 932         }
 933
 934         if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
 935                 return;
 936
 937         p = sc->dsp_firm->data;
 938         pagecount = FW_GET_BYTE(p);
 939         p += 1;
 940
 941         if (pageno >= pagecount)
 942                 goto bad1;
 943
 944         p += 4 * pageno;
 945         pageoffset = get_unaligned_le32(p);
 946
 947         if (pageoffset == 0)
 948                 goto bad1;
 949
 950         p = sc->dsp_firm->data + pageoffset;
 951         blockcount = FW_GET_BYTE(p);
 952         p += 1;
 953
 954         uea_dbg(INS_TO_USBDEV(sc),
 955                "sending %u blocks for DSP page %u\n", blockcount, pageno);
 956
 957         bi.wHdr = cpu_to_le16(UEA_BIHDR);
 958         bi.wOvl = cpu_to_le16(ovl);
 959         bi.wOvlOffset = cpu_to_le16(ovl | 0x8000);
 960
 961         for (i = 0; i < blockcount; i++) {
 962                 blockaddr = get_unaligned_le16(p);
 963                 p += 2;
 964
 965                 blocksize = get_unaligned_le16(p);
 966                 p += 2;
 967
 968                 bi.wSize = cpu_to_le16(blocksize);
 969                 bi.wAddress = cpu_to_le16(blockaddr);
 970                 bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0);
 971
 972                 /* send block info through the IDMA pipe */
 973                 if (uea_idma_write(sc, &bi, E1_BLOCK_INFO_SIZE))
 974                         goto bad2;
 975
 976                 /* send block data through the IDMA pipe */
 977                 if (uea_idma_write(sc, p, blocksize))
 978                         goto bad2;
 979
 980                 p += blocksize;
 981         }
 982
 983         return;
 984
 985 bad2:
 986         uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i);
 987         return;
 988 bad1:
 989         uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n", pageno);
 990 }
 991
 992 static void __uea_load_page_e4(struct uea_softc *sc, u8 pageno, int boot)
 993 {
 994         struct block_info_e4 bi;
 995         struct block_index *blockidx;
 996         struct l1_code *p = (struct l1_code *) sc->dsp_firm->data;
 997         u8 blockno = p->page_number_to_block_index[pageno];
 998
 999         bi.wHdr = cpu_to_be16(UEA_BIHDR);
1000         bi.bBootPage = boot;
1001         bi.bPageNumber = pageno;
1002         bi.wReserved = cpu_to_be16(UEA_RESERVED);
1003
1004         do {
1005                 const u8 *blockoffset;
1006                 unsigned int blocksize;
1007
1008                 blockidx = &p->page_header[blockno];
1009                 blocksize = E4_PAGE_BYTES(blockidx->PageSize);
1010                 blockoffset = sc->dsp_firm->data + le32_to_cpu(
1011                                                         blockidx->PageOffset);
1012
1013                 bi.dwSize = cpu_to_be32(blocksize);
1014                 bi.dwAddress = cpu_to_be32(le32_to_cpu(blockidx->PageAddress));
1015
1016                 uea_dbg(INS_TO_USBDEV(sc),
1017                         "sending block %u for DSP page "
1018                         "%u size %u address %x\n",
1019                         blockno, pageno, blocksize,
1020                         le32_to_cpu(blockidx->PageAddress));
1021
1022                 /* send block info through the IDMA pipe */
1023                 if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
1024                         goto bad;
1025
1026                 /* send block data through the IDMA pipe */
1027                 if (uea_idma_write(sc, blockoffset, blocksize))
1028                         goto bad;
1029
1030                 blockno++;
1031         } while (blockidx->NotLastBlock);
1032
1033         return;
1034
1035 bad:
1036         uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", blockno);
1037         return;
1038 }
1039
1040 static void uea_load_page_e4(struct work_struct *work)
1041 {
1042         struct uea_softc *sc = container_of(work, struct uea_softc, task);
1043         u8 pageno = sc->pageno;
1044         int i;
1045         struct block_info_e4 bi;
1046         struct l1_code *p;
1047
1048         uea_dbg(INS_TO_USBDEV(sc), "sending DSP page %u\n", pageno);
1049
1050         /* reload firmware when reboot start and it's loaded already */
1051         if (pageno == 0 && sc->dsp_firm) {
1052                 release_firmware(sc->dsp_firm);
1053                 sc->dsp_firm = NULL;
1054         }
1055
1056         if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
1057                 return;
1058
1059         p = (struct l1_code *) sc->dsp_firm->data;
1060         if (pageno >= le16_to_cpu(p->page_header[0].PageNumber)) {
1061                 uea_err(INS_TO_USBDEV(sc), "invalid DSP "
1062                                                 "page %u requested\n", pageno);
1063                 return;
1064         }
1065
1066         if (pageno != 0) {
1067                 __uea_load_page_e4(sc, pageno, 0);
1068                 return;
1069         }
1070
1071         uea_dbg(INS_TO_USBDEV(sc),
1072                "sending Main DSP page %u\n", p->page_header[0].PageNumber);
1073
1074         for (i = 0; i < le16_to_cpu(p->page_header[0].PageNumber); i++) {
1075                 if (E4_IS_BOOT_PAGE(p->page_header[i].PageSize))
1076                         __uea_load_page_e4(sc, i, 1);
1077         }
1078
1079         uea_dbg(INS_TO_USBDEV(sc) , "sending start bi\n");
1080
1081         bi.wHdr = cpu_to_be16(UEA_BIHDR);
1082         bi.bBootPage = 0;
1083         bi.bPageNumber = 0xff;
1084         bi.wReserved = cpu_to_be16(UEA_RESERVED);
1085         bi.dwSize = cpu_to_be32(E4_PAGE_BYTES(p->page_header[0].PageSize));
1086         bi.dwAddress = cpu_to_be32(le32_to_cpu(p->page_header[0].PageAddress));
1087
1088         /* send block info through the IDMA pipe */
1089         if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
1090                 uea_err(INS_TO_USBDEV(sc), "sending DSP start bi failed\n");
1091 }
1092
1093 static inline void wake_up_cmv_ack(struct uea_softc *sc)
1094 {
1095         BUG_ON(sc->cmv_ack);
1096         sc->cmv_ack = 1;
1097         wake_up(&sc->sync_q);
1098 }
1099
1100 static inline int wait_cmv_ack(struct uea_softc *sc)
1101 {
1102         int ret = uea_wait(sc, sc->cmv_ack , ACK_TIMEOUT);
1103
1104         sc->cmv_ack = 0;
1105
1106         uea_dbg(INS_TO_USBDEV(sc), "wait_event_timeout : %d ms\n",
1107                         jiffies_to_msecs(ret));
1108
1109         if (ret < 0)
1110                 return ret;
1111
1112         return (ret == 0) ? -ETIMEDOUT : 0;
1113 }
1114
1115 #define UCDC_SEND_ENCAPSULATED_COMMAND 0x00
1116
1117 static int uea_request(struct uea_softc *sc,
1118                 u16 value, u16 index, u16 size, const void *data)
1119 {
1120         u8 *xfer_buff;
1121         int ret = -ENOMEM;
1122
1123         xfer_buff = kmemdup(data, size, GFP_KERNEL);
1124         if (!xfer_buff) {
1125                 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
1126                 return ret;
1127         }
1128
1129         ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
1130                               UCDC_SEND_ENCAPSULATED_COMMAND,
1131                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1132                               value, index, xfer_buff, size, CTRL_TIMEOUT);
1133
1134         kfree(xfer_buff);
1135         if (ret < 0) {
1136                 uea_err(INS_TO_USBDEV(sc), "usb_control_msg error %d\n", ret);
1137                 return ret;
1138         }
1139
1140         if (ret != size) {
1141                 uea_err(INS_TO_USBDEV(sc),
1142                        "usb_control_msg send only %d bytes (instead of %d)\n",
1143                        ret, size);
1144                 return -EIO;
1145         }
1146
1147         return 0;
1148 }
1149
1150 static int uea_cmv_e1(struct uea_softc *sc,
1151                 u8 function, u32 address, u16 offset, u32 data)
1152 {
1153         struct cmv_e1 cmv;
1154         int ret;
1155
1156         uea_enters(INS_TO_USBDEV(sc));
1157         uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Address : %c%c%c%c, "
1158                         "offset : 0x%04x, data : 0x%08x\n",
1159                         E1_FUNCTION_TYPE(function),
1160                         E1_FUNCTION_SUBTYPE(function),
1161                         E1_GETSA1(address), E1_GETSA2(address),
1162                         E1_GETSA3(address),
1163                         E1_GETSA4(address), offset, data);
1164
1165         /* we send a request, but we expect a reply */
1166         sc->cmv_dsc.e1.function = function | 0x2;
1167         sc->cmv_dsc.e1.idx++;
1168         sc->cmv_dsc.e1.address = address;
1169         sc->cmv_dsc.e1.offset = offset;
1170
1171         cmv.wPreamble = cpu_to_le16(E1_PREAMBLE);
1172         cmv.bDirection = E1_HOSTTOMODEM;
1173         cmv.bFunction = function;
1174         cmv.wIndex = cpu_to_le16(sc->cmv_dsc.e1.idx);
1175         put_unaligned_le32(address, &cmv.dwSymbolicAddress);
1176         cmv.wOffsetAddress = cpu_to_le16(offset);
1177         put_unaligned_le32(data >> 16 | data << 16, &cmv.dwData);
1178
1179         ret = uea_request(sc, UEA_E1_SET_BLOCK, UEA_MPTX_START,
1180                                                         sizeof(cmv), &cmv);
1181         if (ret < 0)
1182                 return ret;
1183         ret = wait_cmv_ack(sc);
1184         uea_leaves(INS_TO_USBDEV(sc));
1185         return ret;
1186 }
1187
1188 static int uea_cmv_e4(struct uea_softc *sc,
1189                 u16 function, u16 group, u16 address, u16 offset, u32 data)
1190 {
1191         struct cmv_e4 cmv;
1192         int ret;
1193
1194         uea_enters(INS_TO_USBDEV(sc));
1195         memset(&cmv, 0, sizeof(cmv));
1196
1197         uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Group : 0x%04x, "
1198                  "Address : 0x%04x, offset : 0x%04x, data : 0x%08x\n",
1199                  E4_FUNCTION_TYPE(function), E4_FUNCTION_SUBTYPE(function),
1200                  group, address, offset, data);
1201
1202         /* we send a request, but we expect a reply */
1203         sc->cmv_dsc.e4.function = function | (0x1 << 4);
1204         sc->cmv_dsc.e4.offset = offset;
1205         sc->cmv_dsc.e4.address = address;
1206         sc->cmv_dsc.e4.group = group;
1207
1208         cmv.wFunction = cpu_to_be16(function);
1209         cmv.wGroup = cpu_to_be16(group);
1210         cmv.wAddress = cpu_to_be16(address);
1211         cmv.wOffset = cpu_to_be16(offset);
1212         cmv.dwData[0] = cpu_to_be32(data);
1213
1214         ret = uea_request(sc, UEA_E4_SET_BLOCK, UEA_MPTX_START,
1215                                                         sizeof(cmv), &cmv);
1216         if (ret < 0)
1217                 return ret;
1218         ret = wait_cmv_ack(sc);
1219         uea_leaves(INS_TO_USBDEV(sc));
1220         return ret;
1221 }
1222
1223 static inline int uea_read_cmv_e1(struct uea_softc *sc,
1224                 u32 address, u16 offset, u32 *data)
1225 {
1226         int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTREAD),
1227                           address, offset, 0);
1228         if (ret < 0)
1229                 uea_err(INS_TO_USBDEV(sc),
1230                         "reading cmv failed with error %d\n", ret);
1231         else
1232                 *data = sc->data;
1233
1234         return ret;
1235 }
1236
1237 static inline int uea_read_cmv_e4(struct uea_softc *sc,
1238                 u8 size, u16 group, u16 address, u16 offset, u32 *data)
1239 {
1240         int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
1241                                                         E4_REQUESTREAD, size),
1242                           group, address, offset, 0);
1243         if (ret < 0)
1244                 uea_err(INS_TO_USBDEV(sc),
1245                         "reading cmv failed with error %d\n", ret);
1246         else {
1247                 *data = sc->data;
1248                 /* size is in 16-bit word quantities */
1249                 if (size > 2)
1250                         *(data + 1) = sc->data1;
1251         }
1252         return ret;
1253 }
1254
1255 static inline int uea_write_cmv_e1(struct uea_softc *sc,
1256                 u32 address, u16 offset, u32 data)
1257 {
1258         int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTWRITE),
1259                           address, offset, data);
1260         if (ret < 0)
1261                 uea_err(INS_TO_USBDEV(sc),
1262                         "writing cmv failed with error %d\n", ret);
1263
1264         return ret;
1265 }
1266
1267 static inline int uea_write_cmv_e4(struct uea_softc *sc,
1268                 u8 size, u16 group, u16 address, u16 offset, u32 data)
1269 {
1270         int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
1271                                                         E4_REQUESTWRITE, size),
1272                           group, address, offset, data);
1273         if (ret < 0)
1274                 uea_err(INS_TO_USBDEV(sc),
1275                         "writing cmv failed with error %d\n", ret);
1276
1277         return ret;
1278 }
1279
1280 static void uea_set_bulk_timeout(struct uea_softc *sc, u32 dsrate)
1281 {
1282         int ret;
1283         u16 timeout;
1284
1285         /* in bulk mode the modem have problem with high rate
1286          * changing internal timing could improve things, but the
1287          * value is misterious.
1288          * ADI930 don't support it (-EPIPE error).
1289          */
1290
1291         if (UEA_CHIP_VERSION(sc) == ADI930 ||
1292             altsetting[sc->modem_index] > 0 ||
1293             sc->stats.phy.dsrate == dsrate)
1294                 return;
1295
1296         /* Original timming (1Mbit/s) from ADI (used in windows driver) */
1297         timeout = (dsrate <= 1024*1024) ? 0 : 1;
1298         ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
1299         uea_info(INS_TO_USBDEV(sc), "setting new timeout %d%s\n",
1300                  timeout,  ret < 0 ? " failed" : "");
1301
1302 }
1303
1304 /*
1305  * Monitor the modem and update the stat
1306  * return 0 if everything is ok
1307  * return < 0 if an error occurs (-EAGAIN reboot needed)
1308  */
1309 static int uea_stat_e1(struct uea_softc *sc)
1310 {
1311         u32 data;
1312         int ret;
1313
1314         uea_enters(INS_TO_USBDEV(sc));
1315         data = sc->stats.phy.state;
1316
1317         ret = uea_read_cmv_e1(sc, E1_SA_STAT, 0, &sc->stats.phy.state);
1318         if (ret < 0)
1319                 return ret;
1320
1321         switch (GET_STATUS(sc->stats.phy.state)) {
1322         case 0:         /* not yet synchronized */
1323                 uea_dbg(INS_TO_USBDEV(sc),
1324                        "modem not yet synchronized\n");
1325                 return 0;
1326
1327         case 1:         /* initialization */
1328                 uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
1329                 return 0;
1330
1331         case 2:         /* operational */
1332                 uea_vdbg(INS_TO_USBDEV(sc), "modem operational\n");
1333                 break;
1334
1335         case 3:         /* fail ... */
1336                 uea_info(INS_TO_USBDEV(sc), "modem synchronization failed"
1337                                         " (may be try other cmv/dsp)\n");
1338                 return -EAGAIN;
1339
1340         case 4 ... 6:   /* test state */
1341                 uea_warn(INS_TO_USBDEV(sc),
1342                                 "modem in test mode - not supported\n");
1343                 return -EAGAIN;
1344
1345         case 7:         /* fast-retain ... */
1346                 uea_info(INS_TO_USBDEV(sc), "modem in fast-retain mode\n");
1347                 return 0;
1348         default:
1349                 uea_err(INS_TO_USBDEV(sc), "modem invalid SW mode %d\n",
1350                         GET_STATUS(sc->stats.phy.state));
1351                 return -EAGAIN;
1352         }
1353
1354         if (GET_STATUS(data) != 2) {
1355                 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
1356                 uea_info(INS_TO_USBDEV(sc), "modem operational\n");
1357
1358                 /* release the dsp firmware as it is not needed until
1359                  * the next failure
1360                  */
1361                 if (sc->dsp_firm) {
1362                         release_firmware(sc->dsp_firm);
1363                         sc->dsp_firm = NULL;
1364                 }
1365         }
1366
1367         /* always update it as atm layer could not be init when we switch to
1368          * operational state
1369          */
1370         UPDATE_ATM_SIGNAL(ATM_PHY_SIG_FOUND);
1371
1372         /* wake up processes waiting for synchronization */
1373         wake_up(&sc->sync_q);
1374
1375         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 2, &sc->stats.phy.flags);
1376         if (ret < 0)
1377                 return ret;
1378         sc->stats.phy.mflags |= sc->stats.phy.flags;
1379
1380         /* in case of a flags ( for example delineation LOSS (& 0x10)),
1381          * we check the status again in order to detect the failure earlier
1382          */
1383         if (sc->stats.phy.flags) {
1384                 uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
1385                        sc->stats.phy.flags);
1386                 return 0;
1387         }
1388
1389         ret = uea_read_cmv_e1(sc, E1_SA_RATE, 0, &data);
1390         if (ret < 0)
1391                 return ret;
1392
1393         uea_set_bulk_timeout(sc, (data >> 16) * 32);
1394         sc->stats.phy.dsrate = (data >> 16) * 32;
1395         sc->stats.phy.usrate = (data & 0xffff) * 32;
1396         UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
1397
1398         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 23, &data);
1399         if (ret < 0)
1400                 return ret;
1401         sc->stats.phy.dsattenuation = (data & 0xff) / 2;
1402
1403         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 47, &data);
1404         if (ret < 0)
1405                 return ret;
1406         sc->stats.phy.usattenuation = (data & 0xff) / 2;
1407
1408         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 25, &sc->stats.phy.dsmargin);
1409         if (ret < 0)
1410                 return ret;
1411
1412         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 49, &sc->stats.phy.usmargin);
1413         if (ret < 0)
1414                 return ret;
1415
1416         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 51, &sc->stats.phy.rxflow);
1417         if (ret < 0)
1418                 return ret;
1419
1420         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 52, &sc->stats.phy.txflow);
1421         if (ret < 0)
1422                 return ret;
1423
1424         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 54, &sc->stats.phy.dsunc);
1425         if (ret < 0)
1426                 return ret;
1427
1428         /* only for atu-c */
1429         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 58, &sc->stats.phy.usunc);
1430         if (ret < 0)
1431                 return ret;
1432
1433         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 53, &sc->stats.phy.dscorr);
1434         if (ret < 0)
1435                 return ret;
1436
1437         /* only for atu-c */
1438         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 57, &sc->stats.phy.uscorr);
1439         if (ret < 0)
1440                 return ret;
1441
1442         ret = uea_read_cmv_e1(sc, E1_SA_INFO, 8, &sc->stats.phy.vidco);
1443         if (ret < 0)
1444                 return ret;
1445
1446         ret = uea_read_cmv_e1(sc, E1_SA_INFO, 13, &sc->stats.phy.vidcpe);
1447         if (ret < 0)
1448                 return ret;
1449
1450         return 0;
1451 }
1452
1453 static int uea_stat_e4(struct uea_softc *sc)
1454 {
1455         u32 data;
1456         u32 tmp_arr[2];
1457         int ret;
1458
1459         uea_enters(INS_TO_USBDEV(sc));
1460         data = sc->stats.phy.state;
1461
1462         /* XXX only need to be done before operationnal... */
1463         ret = uea_read_cmv_e4(sc, 1, E4_SA_STAT, 0, 0, &sc->stats.phy.state);
1464         if (ret < 0)
1465                 return ret;
1466
1467         switch (sc->stats.phy.state) {
1468         case 0x0:       /* not yet synchronized */
1469         case 0x1:
1470         case 0x3:
1471         case 0x4:
1472                 uea_dbg(INS_TO_USBDEV(sc), "modem not yet "
1473                                                 "synchronized\n");
1474                 return 0;
1475         case 0x5:       /* initialization */
1476         case 0x6:
1477         case 0x9:
1478         case 0xa:
1479                 uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
1480                 return 0;
1481         case 0x2:       /* fail ... */
1482                 uea_info(INS_TO_USBDEV(sc), "modem synchronization "
1483                                 "failed (may be try other cmv/dsp)\n");
1484                 return -EAGAIN;
1485         case 0x7:       /* operational */
1486                 break;
1487         default:
1488                 uea_warn(INS_TO_USBDEV(sc), "unknown state: %x\n",
1489                                                 sc->stats.phy.state);
1490                 return 0;
1491         }
1492
1493         if (data != 7) {
1494                 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
1495                 uea_info(INS_TO_USBDEV(sc), "modem operational\n");
1496
1497                 /* release the dsp firmware as it is not needed until
1498                  * the next failure
1499                  */
1500                 if (sc->dsp_firm) {
1501                         release_firmware(sc->dsp_firm);
1502                         sc->dsp_firm = NULL;
1503                 }
1504         }
1505
1506         /* always update it as atm layer could not be init when we switch to
1507          * operational state
1508          */
1509         UPDATE_ATM_SIGNAL(ATM_PHY_SIG_FOUND);
1510
1511         /* wake up processes waiting for synchronization */
1512         wake_up(&sc->sync_q);
1513
1514         /* TODO improve this state machine :
1515          * we need some CMV info : what they do and their unit
1516          * we should find the equivalent of eagle3- CMV
1517          */
1518         /* check flags */
1519         ret = uea_read_cmv_e4(sc, 1, E4_SA_DIAG, 0, 0, &sc->stats.phy.flags);
1520         if (ret < 0)
1521                 return ret;
1522         sc->stats.phy.mflags |= sc->stats.phy.flags;
1523
1524         /* in case of a flags ( for example delineation LOSS (& 0x10)),
1525          * we check the status again in order to detect the failure earlier
1526          */
1527         if (sc->stats.phy.flags) {
1528                 uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
1529                        sc->stats.phy.flags);
1530                 if (sc->stats.phy.flags & 1) /* delineation LOSS */
1531                         return -EAGAIN;
1532                 if (sc->stats.phy.flags & 0x4000) /* Reset Flag */
1533                         return -EAGAIN;
1534                 return 0;
1535         }
1536
1537         /* rate data may be in upper or lower half of 64 bit word, strange */
1538         ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 0, 0, tmp_arr);
1539         if (ret < 0)
1540                 return ret;
1541         data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
1542         sc->stats.phy.usrate = data / 1000;
1543
1544         ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 1, 0, tmp_arr);
1545         if (ret < 0)
1546                 return ret;
1547         data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
1548         uea_set_bulk_timeout(sc, data / 1000);
1549         sc->stats.phy.dsrate = data / 1000;
1550         UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
1551
1552         ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 1, &data);
1553         if (ret < 0)
1554                 return ret;
1555         sc->stats.phy.dsattenuation = data / 10;
1556
1557         ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 1, &data);
1558         if (ret < 0)
1559                 return ret;
1560         sc->stats.phy.usattenuation = data / 10;
1561
1562         ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 3, &data);
1563         if (ret < 0)
1564                 return ret;
1565         sc->stats.phy.dsmargin = data / 2;
1566
1567         ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 3, &data);
1568         if (ret < 0)
1569                 return ret;
1570         sc->stats.phy.usmargin = data / 10;
1571
1572         return 0;
1573 }
1574
1575 static void cmvs_file_name(struct uea_softc *sc, char *const cmv_name, int ver)
1576 {
1577         char file_arr[] = "CMVxy.bin";
1578         char *file;
1579
1580         kparam_block_sysfs_write(cmv_file);
1581         /* set proper name corresponding modem version and line type */
1582         if (cmv_file[sc->modem_index] == NULL) {
1583                 if (UEA_CHIP_VERSION(sc) == ADI930)
1584                         file_arr[3] = '9';
1585                 else if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
1586                         file_arr[3] = '4';
1587                 else
1588                         file_arr[3] = 'e';
1589
1590                 file_arr[4] = IS_ISDN(sc) ? 'i' : 'p';
1591                 file = file_arr;
1592         } else
1593                 file = cmv_file[sc->modem_index];
1594
1595         strcpy(cmv_name, FW_DIR);
1596         strlcat(cmv_name, file, UEA_FW_NAME_MAX);
1597         if (ver == 2)
1598                 strlcat(cmv_name, ".v2", UEA_FW_NAME_MAX);
1599         kparam_unblock_sysfs_write(cmv_file);
1600 }
1601
1602 static int request_cmvs_old(struct uea_softc *sc,
1603                  void **cmvs, const struct firmware **fw)
1604 {
1605         int ret, size;
1606         u8 *data;
1607         char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */
1608
1609         cmvs_file_name(sc, cmv_name, 1);
1610         ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
1611         if (ret < 0) {
1612                 uea_err(INS_TO_USBDEV(sc),
1613                        "requesting firmware %s failed with error %d\n",
1614                        cmv_name, ret);
1615                 return ret;
1616         }
1617
1618         data = (u8 *) (*fw)->data;
1619         size = (*fw)->size;
1620         if (size < 1)
1621                 goto err_fw_corrupted;
1622
1623         if (size != *data * sizeof(struct uea_cmvs_v1) + 1)
1624                 goto err_fw_corrupted;
1625
1626         *cmvs = (void *)(data + 1);
1627         return *data;
1628
1629 err_fw_corrupted:
1630         uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
1631         release_firmware(*fw);
1632         return -EILSEQ;
1633 }
1634
1635 static int request_cmvs(struct uea_softc *sc,
1636                  void **cmvs, const struct firmware **fw, int *ver)
1637 {
1638         int ret, size;
1639         u32 crc;
1640         u8 *data;
1641         char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */
1642
1643         cmvs_file_name(sc, cmv_name, 2);
1644         ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
1645         if (ret < 0) {
1646                 /* if caller can handle old version, try to provide it */
1647                 if (*ver == 1) {
1648                         uea_warn(INS_TO_USBDEV(sc), "requesting "
1649                                                         "firmware %s failed, "
1650                                 "try to get older cmvs\n", cmv_name);
1651                         return request_cmvs_old(sc, cmvs, fw);
1652                 }
1653                 uea_err(INS_TO_USBDEV(sc),
1654                        "requesting firmware %s failed with error %d\n",
1655                        cmv_name, ret);
1656                 return ret;
1657         }
1658
1659         size = (*fw)->size;
1660         data = (u8 *) (*fw)->data;
1661         if (size < 4 || strncmp(data, "cmv2", 4) != 0) {
1662                 if (*ver == 1) {
1663                         uea_warn(INS_TO_USBDEV(sc), "firmware %s is corrupted,"
1664                                 " try to get older cmvs\n", cmv_name);
1665                         release_firmware(*fw);
1666                         return request_cmvs_old(sc, cmvs, fw);
1667                 }
1668                 goto err_fw_corrupted;
1669         }
1670
1671         *ver = 2;
1672
1673         data += 4;
1674         size -= 4;
1675         if (size < 5)
1676                 goto err_fw_corrupted;
1677
1678         crc = get_unaligned_le32(data);
1679         data += 4;
1680         size -= 4;
1681         if (crc32_be(0, data, size) != crc)
1682                 goto err_fw_corrupted;
1683
1684         if (size != *data * sizeof(struct uea_cmvs_v2) + 1)
1685                 goto err_fw_corrupted;
1686
1687         *cmvs = (void *) (data + 1);
1688         return *data;
1689
1690 err_fw_corrupted:
1691         uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
1692         release_firmware(*fw);
1693         return -EILSEQ;
1694 }
1695
1696 static int uea_send_cmvs_e1(struct uea_softc *sc)
1697 {
1698         int i, ret, len;
1699         void *cmvs_ptr;
1700         const struct firmware *cmvs_fw;
1701         int ver = 1; /* we can handle v1 cmv firmware version; */
1702
1703         /* Enter in R-IDLE (cmv) until instructed otherwise */
1704         ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 1);
1705         if (ret < 0)
1706                 return ret;
1707
1708         /* Dump firmware version */
1709         ret = uea_read_cmv_e1(sc, E1_SA_INFO, 10, &sc->stats.phy.firmid);
1710         if (ret < 0)
1711                 return ret;
1712         uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
1713                         sc->stats.phy.firmid);
1714
1715         /* get options */
1716         ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
1717         if (ret < 0)
1718                 return ret;
1719
1720         /* send options */
1721         if (ver == 1) {
1722                 struct uea_cmvs_v1 *cmvs_v1 = cmvs_ptr;
1723
1724                 uea_warn(INS_TO_USBDEV(sc), "use deprecated cmvs version, "
1725                         "please update your firmware\n");
1726
1727                 for (i = 0; i < len; i++) {
1728                         ret = uea_write_cmv_e1(sc,
1729                                 get_unaligned_le32(&cmvs_v1[i].address),
1730                                 get_unaligned_le16(&cmvs_v1[i].offset),
1731                                 get_unaligned_le32(&cmvs_v1[i].data));
1732                         if (ret < 0)
1733                                 goto out;
1734                 }
1735         } else if (ver == 2) {
1736                 struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
1737
1738                 for (i = 0; i < len; i++) {
1739                         ret = uea_write_cmv_e1(sc,
1740                                 get_unaligned_le32(&cmvs_v2[i].address),
1741                                 (u16) get_unaligned_le32(&cmvs_v2[i].offset),
1742                                 get_unaligned_le32(&cmvs_v2[i].data));
1743                         if (ret < 0)
1744                                 goto out;
1745                 }
1746         } else {
1747                 /* This realy should not happen */
1748                 uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
1749                 goto out;
1750         }
1751
1752         /* Enter in R-ACT-REQ */
1753         ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 2);
1754         uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
1755         uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
1756                                                 "synchronization...\n");
1757 out:
1758         release_firmware(cmvs_fw);
1759         return ret;
1760 }
1761
1762 static int uea_send_cmvs_e4(struct uea_softc *sc)
1763 {
1764         int i, ret, len;
1765         void *cmvs_ptr;
1766         const struct firmware *cmvs_fw;
1767         int ver = 2; /* we can only handle v2 cmv firmware version; */
1768
1769         /* Enter in R-IDLE (cmv) until instructed otherwise */
1770         ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 1);
1771         if (ret < 0)
1772                 return ret;
1773
1774         /* Dump firmware version */
1775         /* XXX don't read the 3th byte as it is always 6 */
1776         ret = uea_read_cmv_e4(sc, 2, E4_SA_INFO, 55, 0, &sc->stats.phy.firmid);
1777         if (ret < 0)
1778                 return ret;
1779         uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
1780                         sc->stats.phy.firmid);
1781
1782
1783         /* get options */
1784         ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
1785         if (ret < 0)
1786                 return ret;
1787
1788         /* send options */
1789         if (ver == 2) {
1790                 struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
1791
1792                 for (i = 0; i < len; i++) {
1793                         ret = uea_write_cmv_e4(sc, 1,
1794                                 get_unaligned_le32(&cmvs_v2[i].group),
1795                                 get_unaligned_le32(&cmvs_v2[i].address),
1796                                 get_unaligned_le32(&cmvs_v2[i].offset),
1797                                 get_unaligned_le32(&cmvs_v2[i].data));
1798                         if (ret < 0)
1799                                 goto out;
1800                 }
1801         } else {
1802                 /* This realy should not happen */
1803                 uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
1804                 goto out;
1805         }
1806
1807         /* Enter in R-ACT-REQ */
1808         ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 2);
1809         uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
1810         uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
1811                                                 "synchronization...\n");
1812 out:
1813         release_firmware(cmvs_fw);
1814         return ret;
1815 }
1816
1817 /* Start boot post firmware modem:
1818  * - send reset commands through usb control pipe
1819  * - start workqueue for DSP loading
1820  * - send CMV options to modem
1821  */
1822
1823 static int uea_start_reset(struct uea_softc *sc)
1824 {
1825         u16 zero = 0;   /* ;-) */
1826         int ret;
1827
1828         uea_enters(INS_TO_USBDEV(sc));
1829         uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");
1830
1831         /* mask interrupt */
1832         sc->booting = 1;
1833         /* We need to set this here because, a ack timeout could have occured,
1834          * but before we start the reboot, the ack occurs and set this to 1.
1835          * So we will failed to wait Ready CMV.
1836          */
1837         sc->cmv_ack = 0;
1838         UPDATE_ATM_SIGNAL(ATM_PHY_SIG_LOST);
1839
1840         /* reset statistics */
1841         memset(&sc->stats, 0, sizeof(struct uea_stats));
1842
1843         /* tell the modem that we want to boot in IDMA mode */
1844         uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1845         uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL);
1846
1847         /* enter reset mode */
1848         uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL);
1849
1850         /* original driver use 200ms, but windows driver use 100ms */
1851         ret = uea_wait(sc, 0, msecs_to_jiffies(100));
1852         if (ret < 0)
1853                 return ret;
1854
1855         /* leave reset mode */
1856         uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);
1857
1858         if (UEA_CHIP_VERSION(sc) != EAGLE_IV) {
1859                 /* clear tx and rx mailboxes */
1860                 uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
1861                 uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
1862                 uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
1863         }
1864
1865         ret = uea_wait(sc, 0, msecs_to_jiffies(1000));
1866         if (ret < 0)
1867                 return ret;
1868
1869         if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
1870                 sc->cmv_dsc.e4.function = E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
1871                                                         E4_MODEMREADY, 1);
1872         else
1873                 sc->cmv_dsc.e1.function = E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
1874                                                         E1_MODEMREADY);
1875
1876         /* demask interrupt */
1877         sc->booting = 0;
1878
1879         /* start loading DSP */
1880         sc->pageno = 0;
1881         sc->ovl = 0;
1882         queue_work(sc->work_q, &sc->task);
1883
1884         /* wait for modem ready CMV */
1885         ret = wait_cmv_ack(sc);
1886         if (ret < 0)
1887                 return ret;
1888
1889         uea_vdbg(INS_TO_USBDEV(sc), "Ready CMV received\n");
1890
1891         ret = sc->send_cmvs(sc);
1892         if (ret < 0)
1893                 return ret;
1894
1895         sc->reset = 0;
1896         uea_leaves(INS_TO_USBDEV(sc));
1897         return ret;
1898 }
1899
1900 /*
1901  * In case of an error wait 1s before rebooting the modem
1902  * if the modem don't request reboot (-EAGAIN).
1903  * Monitor the modem every 1s.
1904  */
1905
1906 static int uea_kthread(void *data)
1907 {
1908         struct uea_softc *sc = data;
1909         int ret = -EAGAIN;
1910
1911         set_freezable();
1912         uea_enters(INS_TO_USBDEV(sc));
1913         while (!kthread_should_stop()) {
1914                 if (ret < 0 || sc->reset)
1915                         ret = uea_start_reset(sc);
1916                 if (!ret)
1917                         ret = sc->stat(sc);
1918                 if (ret != -EAGAIN)
1919                         uea_wait(sc, 0, msecs_to_jiffies(1000));
1920                 try_to_freeze();
1921         }
1922         uea_leaves(INS_TO_USBDEV(sc));
1923         return ret;
1924 }
1925
1926 /* Load second usb firmware for ADI930 chip */
1927 static int load_XILINX_firmware(struct uea_softc *sc)
1928 {
1929         const struct firmware *fw_entry;
1930         int ret, size, u, ln;
1931         const u8 *pfw;
1932         u8 value;
1933         char *fw_name = FW_DIR "930-fpga.bin";
1934
1935         uea_enters(INS_TO_USBDEV(sc));
1936
1937         ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev);
1938         if (ret) {
1939                 uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n",
1940                        fw_name);
1941                 goto err0;
1942         }
1943
1944         pfw = fw_entry->data;
1945         size = fw_entry->size;
1946         if (size != 0x577B) {
1947                 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1948                        fw_name);
1949                 ret = -EILSEQ;
1950                 goto err1;
1951         }
1952         for (u = 0; u < size; u += ln) {
1953                 ln = min(size - u, 64);
1954                 ret = uea_request(sc, 0xe, 0, ln, pfw + u);
1955                 if (ret < 0) {
1956                         uea_err(INS_TO_USBDEV(sc),
1957                                "elsa download data failed (%d)\n", ret);
1958                         goto err1;
1959                 }
1960         }
1961
1962         /* finish to send the fpga */
1963         ret = uea_request(sc, 0xe, 1, 0, NULL);
1964         if (ret < 0) {
1965                 uea_err(INS_TO_USBDEV(sc),
1966                                 "elsa download data failed (%d)\n", ret);
1967                 goto err1;
1968         }
1969
1970         /* Tell the modem we finish : de-assert reset */
1971         value = 0;
1972         ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
1973         if (ret < 0)
1974                 uea_err(sc->usb_dev, "elsa de-assert failed with error"
1975                                                                 " %d\n", ret);
1976
1977 err1:
1978         release_firmware(fw_entry);
1979 err0:
1980         uea_leaves(INS_TO_USBDEV(sc));
1981         return ret;
1982 }
1983
1984 /* The modem send us an ack. First with check if it right */
1985 static void uea_dispatch_cmv_e1(struct uea_softc *sc, struct intr_pkt *intr)
1986 {
1987         struct cmv_dsc_e1 *dsc = &sc->cmv_dsc.e1;
1988         struct cmv_e1 *cmv = &intr->u.e1.s2.cmv;
1989
1990         uea_enters(INS_TO_USBDEV(sc));
1991         if (le16_to_cpu(cmv->wPreamble) != E1_PREAMBLE)
1992                 goto bad1;
1993
1994         if (cmv->bDirection != E1_MODEMTOHOST)
1995                 goto bad1;
1996
1997         /* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
1998          * the first MEMACCESS cmv. Ignore it...
1999          */
2000         if (cmv->bFunction != dsc->function) {
2001                 if (UEA_CHIP_VERSION(sc) == ADI930
2002                                 && cmv->bFunction ==  E1_MAKEFUNCTION(2, 2)) {
2003                         cmv->wIndex = cpu_to_le16(dsc->idx);
2004                         put_unaligned_le32(dsc->address,
2005                                                 &cmv->dwSymbolicAddress);
2006                         cmv->wOffsetAddress = cpu_to_le16(dsc->offset);
2007                 } else
2008                         goto bad2;
2009         }
2010
2011         if (cmv->bFunction == E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
2012                                                         E1_MODEMREADY)) {
2013                 wake_up_cmv_ack(sc);
2014                 uea_leaves(INS_TO_USBDEV(sc));
2015                 return;
2016         }
2017
2018         /* in case of MEMACCESS */
2019         if (le16_to_cpu(cmv->wIndex) != dsc->idx ||
2020             get_unaligned_le32(&cmv->dwSymbolicAddress) != dsc->address ||
2021             le16_to_cpu(cmv->wOffsetAddress) != dsc->offset)
2022                 goto bad2;
2023
2024         sc->data = get_unaligned_le32(&cmv->dwData);
2025         sc->data = sc->data << 16 | sc->data >> 16;
2026
2027         wake_up_cmv_ack(sc);
2028         uea_leaves(INS_TO_USBDEV(sc));
2029         return;
2030
2031 bad2:
2032         uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
2033                         "Function : %d, Subfunction : %d\n",
2034                         E1_FUNCTION_TYPE(cmv->bFunction),
2035                         E1_FUNCTION_SUBTYPE(cmv->bFunction));
2036         uea_leaves(INS_TO_USBDEV(sc));
2037         return;
2038
2039 bad1:
2040         uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
2041                         "wPreamble %d, bDirection %d\n",
2042                         le16_to_cpu(cmv->wPreamble), cmv->bDirection);
2043         uea_leaves(INS_TO_USBDEV(sc));
2044 }
2045
2046 /* The modem send us an ack. First with check if it right */
2047 static void uea_dispatch_cmv_e4(struct uea_softc *sc, struct intr_pkt *intr)
2048 {
2049         struct cmv_dsc_e4 *dsc = &sc->cmv_dsc.e4;
2050         struct cmv_e4 *cmv = &intr->u.e4.s2.cmv;
2051
2052         uea_enters(INS_TO_USBDEV(sc));
2053         uea_dbg(INS_TO_USBDEV(sc), "cmv %x %x %x %x %x %x\n",
2054                 be16_to_cpu(cmv->wGroup), be16_to_cpu(cmv->wFunction),
2055                 be16_to_cpu(cmv->wOffset), be16_to_cpu(cmv->wAddress),
2056                 be32_to_cpu(cmv->dwData[0]), be32_to_cpu(cmv->dwData[1]));
2057
2058         if (be16_to_cpu(cmv->wFunction) != dsc->function)
2059                 goto bad2;
2060
2061         if (be16_to_cpu(cmv->wFunction) == E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
2062                                                 E4_MODEMREADY, 1)) {
2063                 wake_up_cmv_ack(sc);
2064                 uea_leaves(INS_TO_USBDEV(sc));
2065                 return;
2066         }
2067
2068         /* in case of MEMACCESS */
2069         if (be16_to_cpu(cmv->wOffset) != dsc->offset ||
2070             be16_to_cpu(cmv->wGroup) != dsc->group ||
2071             be16_to_cpu(cmv->wAddress) != dsc->address)
2072                 goto bad2;
2073
2074         sc->data = be32_to_cpu(cmv->dwData[0]);
2075         sc->data1 = be32_to_cpu(cmv->dwData[1]);
2076         wake_up_cmv_ack(sc);
2077         uea_leaves(INS_TO_USBDEV(sc));
2078         return;
2079
2080 bad2:
2081         uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
2082                         "Function : %d, Subfunction : %d\n",
2083                         E4_FUNCTION_TYPE(cmv->wFunction),
2084                         E4_FUNCTION_SUBTYPE(cmv->wFunction));
2085         uea_leaves(INS_TO_USBDEV(sc));
2086         return;
2087 }
2088
2089 static void uea_schedule_load_page_e1(struct uea_softc *sc,
2090                                                 struct intr_pkt *intr)
2091 {
2092         sc->pageno = intr->e1_bSwapPageNo;
2093         sc->ovl = intr->e1_bOvl >> 4 | intr->e1_bOvl << 4;
2094         queue_work(sc->work_q, &sc->task);
2095 }
2096
2097 static void uea_schedule_load_page_e4(struct uea_softc *sc,
2098                                                 struct intr_pkt *intr)
2099 {
2100         sc->pageno = intr->e4_bSwapPageNo;
2101         queue_work(sc->work_q, &sc->task);
2102 }
2103
2104 /*
2105  * interrupt handler
2106  */
2107 static void uea_intr(struct urb *urb)
2108 {
2109         struct uea_softc *sc = urb->context;
2110         struct intr_pkt *intr = urb->transfer_buffer;
2111         int status = urb->status;
2112
2113         uea_enters(INS_TO_USBDEV(sc));
2114
2115         if (unlikely(status < 0)) {
2116                 uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n",
2117                        status);
2118                 return;
2119         }
2120
2121         /* device-to-host interrupt */
2122         if (intr->bType != 0x08 || sc->booting) {
2123                 uea_err(INS_TO_USBDEV(sc), "wrong interrupt\n");
2124                 goto resubmit;
2125         }
2126
2127         switch (le16_to_cpu(intr->wInterrupt)) {
2128         case INT_LOADSWAPPAGE:
2129                 sc->schedule_load_page(sc, intr);
2130                 break;
2131
2132         case INT_INCOMINGCMV:
2133                 sc->dispatch_cmv(sc, intr);
2134                 break;
2135
2136         default:
2137                 uea_err(INS_TO_USBDEV(sc), "unknown interrupt %u\n",
2138                        le16_to_cpu(intr->wInterrupt));
2139         }
2140
2141 resubmit:
2142         usb_submit_urb(sc->urb_int, GFP_ATOMIC);
2143 }
2144
2145 /*
2146  * Start the modem : init the data and start kernel thread
2147  */
2148 static int uea_boot(struct uea_softc *sc)
2149 {
2150         int ret, size;
2151         struct intr_pkt *intr;
2152
2153         uea_enters(INS_TO_USBDEV(sc));
2154
2155         if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2156                 size = E4_INTR_PKT_SIZE;
2157                 sc->dispatch_cmv = uea_dispatch_cmv_e4;
2158                 sc->schedule_load_page = uea_schedule_load_page_e4;
2159                 sc->stat = uea_stat_e4;
2160                 sc->send_cmvs = uea_send_cmvs_e4;
2161                 INIT_WORK(&sc->task, uea_load_page_e4);
2162         } else {
2163                 size = E1_INTR_PKT_SIZE;
2164                 sc->dispatch_cmv = uea_dispatch_cmv_e1;
2165                 sc->schedule_load_page = uea_schedule_load_page_e1;
2166                 sc->stat = uea_stat_e1;
2167                 sc->send_cmvs = uea_send_cmvs_e1;
2168                 INIT_WORK(&sc->task, uea_load_page_e1);
2169         }
2170
2171         init_waitqueue_head(&sc->sync_q);
2172
2173         sc->work_q = create_workqueue("ueagle-dsp");
2174         if (!sc->work_q) {
2175                 uea_err(INS_TO_USBDEV(sc), "cannot allocate workqueue\n");
2176                 uea_leaves(INS_TO_USBDEV(sc));
2177                 return -ENOMEM;
2178         }
2179
2180         if (UEA_CHIP_VERSION(sc) == ADI930)
2181                 load_XILINX_firmware(sc);
2182
2183         intr = kmalloc(size, GFP_KERNEL);
2184         if (!intr) {
2185                 uea_err(INS_TO_USBDEV(sc),
2186                        "cannot allocate interrupt package\n");
2187                 goto err0;
2188         }
2189
2190         sc->urb_int = usb_alloc_urb(0, GFP_KERNEL);
2191         if (!sc->urb_int) {
2192                 uea_err(INS_TO_USBDEV(sc), "cannot allocate interrupt URB\n");
2193                 goto err1;
2194         }
2195
2196         usb_fill_int_urb(sc->urb_int, sc->usb_dev,
2197                          usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
2198                          intr, size, uea_intr, sc,
2199                          sc->usb_dev->actconfig->interface[0]->altsetting[0].
2200                          endpoint[0].desc.bInterval);
2201
2202         ret = usb_submit_urb(sc->urb_int, GFP_KERNEL);
2203         if (ret < 0) {
2204                 uea_err(INS_TO_USBDEV(sc),
2205                        "urb submition failed with error %d\n", ret);
2206                 goto err1;
2207         }
2208
2209         sc->kthread = kthread_run(uea_kthread, sc, "ueagle-atm");
2210         if (sc->kthread == ERR_PTR(-ENOMEM)) {
2211                 uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
2212                 goto err2;
2213         }
2214
2215         uea_leaves(INS_TO_USBDEV(sc));
2216         return 0;
2217
2218 err2:
2219         usb_kill_urb(sc->urb_int);
2220 err1:
2221         usb_free_urb(sc->urb_int);
2222         sc->urb_int = NULL;
2223         kfree(intr);
2224 err0:
2225         destroy_workqueue(sc->work_q);
2226         uea_leaves(INS_TO_USBDEV(sc));
2227         return -ENOMEM;
2228 }
2229
2230 /*
2231  * Stop the modem : kill kernel thread and free data
2232  */
2233 static void uea_stop(struct uea_softc *sc)
2234 {
2235         int ret;
2236         uea_enters(INS_TO_USBDEV(sc));
2237         ret = kthread_stop(sc->kthread);
2238         uea_dbg(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret);
2239
2240         uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
2241
2242         usb_kill_urb(sc->urb_int);
2243         kfree(sc->urb_int->transfer_buffer);
2244         usb_free_urb(sc->urb_int);
2245
2246         /* stop any pending boot process, when no one can schedule work */
2247         destroy_workqueue(sc->work_q);
2248
2249         if (sc->dsp_firm)
2250                 release_firmware(sc->dsp_firm);
2251         uea_leaves(INS_TO_USBDEV(sc));
2252 }
2253
2254 /* syfs interface */
2255 static struct uea_softc *dev_to_uea(struct device *dev)
2256 {
2257         struct usb_interface *intf;
2258         struct usbatm_data *usbatm;
2259
2260         intf = to_usb_interface(dev);
2261         if (!intf)
2262                 return NULL;
2263
2264         usbatm = usb_get_intfdata(intf);
2265         if (!usbatm)
2266                 return NULL;
2267
2268         return usbatm->driver_data;
2269 }
2270
2271 static ssize_t read_status(struct device *dev, struct device_attribute *attr,
2272                 char *buf)
2273 {
2274         int ret = -ENODEV;
2275         struct uea_softc *sc;
2276
2277         mutex_lock(&uea_mutex);
2278         sc = dev_to_uea(dev);
2279         if (!sc)
2280                 goto out;
2281         ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.state);
2282 out:
2283         mutex_unlock(&uea_mutex);
2284         return ret;
2285 }
2286
2287 static ssize_t reboot(struct device *dev, struct device_attribute *attr,
2288                 const char *buf, size_t count)
2289 {
2290         int ret = -ENODEV;
2291         struct uea_softc *sc;
2292
2293         mutex_lock(&uea_mutex);
2294         sc = dev_to_uea(dev);
2295         if (!sc)
2296                 goto out;
2297         sc->reset = 1;
2298         ret = count;
2299 out:
2300         mutex_unlock(&uea_mutex);
2301         return ret;
2302 }
2303
2304 static DEVICE_ATTR(stat_status, S_IWUSR | S_IRUGO, read_status, reboot);
2305
2306 static ssize_t read_human_status(struct device *dev,
2307                         struct device_attribute *attr, char *buf)
2308 {
2309         int ret = -ENODEV;
2310         int modem_state;
2311         struct uea_softc *sc;
2312
2313         mutex_lock(&uea_mutex);
2314         sc = dev_to_uea(dev);
2315         if (!sc)
2316                 goto out;
2317
2318         if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2319                 switch (sc->stats.phy.state) {
2320                 case 0x0:       /* not yet synchronized */
2321                 case 0x1:
2322                 case 0x3:
2323                 case 0x4:
2324                         modem_state = 0;
2325                         break;
2326                 case 0x5:       /* initialization */
2327                 case 0x6:
2328                 case 0x9:
2329                 case 0xa:
2330                         modem_state = 1;
2331                         break;
2332                 case 0x7:       /* operational */
2333                         modem_state = 2;
2334                         break;
2335                 case 0x2:       /* fail ... */
2336                         modem_state = 3;
2337                         break;
2338                 default:        /* unknown */
2339                         modem_state = 4;
2340                         break;
2341                 }
2342         } else
2343                 modem_state = GET_STATUS(sc->stats.phy.state);
2344
2345         switch (modem_state) {
2346         case 0:
2347                 ret = sprintf(buf, "Modem is booting\n");
2348                 break;
2349         case 1:
2350                 ret = sprintf(buf, "Modem is initializing\n");
2351                 break;
2352         case 2:
2353                 ret = sprintf(buf, "Modem is operational\n");
2354                 break;
2355         case 3:
2356                 ret = sprintf(buf, "Modem synchronization failed\n");
2357                 break;
2358         default:
2359                 ret = sprintf(buf, "Modem state is unknown\n");
2360                 break;
2361         }
2362 out:
2363         mutex_unlock(&uea_mutex);
2364         return ret;
2365 }
2366
2367 static DEVICE_ATTR(stat_human_status, S_IRUGO, read_human_status, NULL);
2368
2369 static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
2370                 char *buf)
2371 {
2372         int ret = -ENODEV;
2373         struct uea_softc *sc;
2374         char *delin = "GOOD";
2375
2376         mutex_lock(&uea_mutex);
2377         sc = dev_to_uea(dev);
2378         if (!sc)
2379                 goto out;
2380
2381         if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2382                 if (sc->stats.phy.flags & 0x4000)
2383                         delin = "RESET";
2384                 else if (sc->stats.phy.flags & 0x0001)
2385                         delin = "LOSS";
2386         } else {
2387                 if (sc->stats.phy.flags & 0x0C00)
2388                         delin = "ERROR";
2389                 else if (sc->stats.phy.flags & 0x0030)
2390                         delin = "LOSS";
2391         }
2392
2393         ret = sprintf(buf, "%s\n", delin);
2394 out:
2395         mutex_unlock(&uea_mutex);
2396         return ret;
2397 }
2398
2399 static DEVICE_ATTR(stat_delin, S_IRUGO, read_delin, NULL);
2400
2401 #define UEA_ATTR(name, reset)                                   \
2402                                                                 \
2403 static ssize_t read_##name(struct device *dev,                  \
2404                 struct device_attribute *attr, char *buf)       \
2405 {                                                               \
2406         int ret = -ENODEV;                                      \
2407         struct uea_softc *sc;                                   \
2408                                                                 \
2409         mutex_lock(&uea_mutex);                                 \
2410         sc = dev_to_uea(dev);                                   \
2411         if (!sc)                                                \
2412                 goto out;                                       \
2413         ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name);  \
2414         if (reset)                                              \
2415                 sc->stats.phy.name = 0;                         \
2416 out:                                                            \
2417         mutex_unlock(&uea_mutex);                               \
2418         return ret;                                             \
2419 }                                                               \
2420                                                                 \
2421 static DEVICE_ATTR(stat_##name, S_IRUGO, read_##name, NULL)
2422
2423 UEA_ATTR(mflags, 1);
2424 UEA_ATTR(vidcpe, 0);
2425 UEA_ATTR(usrate, 0);
2426 UEA_ATTR(dsrate, 0);
2427 UEA_ATTR(usattenuation, 0);
2428 UEA_ATTR(dsattenuation, 0);
2429 UEA_ATTR(usmargin, 0);
2430 UEA_ATTR(dsmargin, 0);
2431 UEA_ATTR(txflow, 0);
2432 UEA_ATTR(rxflow, 0);
2433 UEA_ATTR(uscorr, 0);
2434 UEA_ATTR(dscorr, 0);
2435 UEA_ATTR(usunc, 0);
2436 UEA_ATTR(dsunc, 0);
2437 UEA_ATTR(firmid, 0);
2438
2439 /* Retrieve the device End System Identifier (MAC) */
2440
2441 static int uea_getesi(struct uea_softc *sc, u_char * esi)
2442 {
2443         unsigned char mac_str[2 * ETH_ALEN + 1];
2444         int i;
2445         if (usb_string
2446             (sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str,
2447              sizeof(mac_str)) != 2 * ETH_ALEN)
2448                 return 1;
2449
2450         for (i = 0; i < ETH_ALEN; i++)
2451                 esi[i] = hex_to_bin(mac_str[2 * i]) * 16 +
2452                          hex_to_bin(mac_str[2 * i + 1]);
2453
2454         return 0;
2455 }
2456
2457 /* ATM stuff */
2458 static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
2459 {
2460         struct uea_softc *sc = usbatm->driver_data;
2461
2462         return uea_getesi(sc, atm_dev->esi);
2463 }
2464
2465 static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
2466 {
2467         struct uea_softc *sc = usbatm->driver_data;
2468
2469         wait_event_interruptible(sc->sync_q, IS_OPERATIONAL(sc));
2470
2471         return 0;
2472
2473 }
2474
2475 static int claim_interface(struct usb_device *usb_dev,
2476                            struct usbatm_data *usbatm, int ifnum)
2477 {
2478         int ret;
2479         struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum);
2480
2481         if (!intf) {
2482                 uea_err(usb_dev, "interface %d not found\n", ifnum);
2483                 return -ENODEV;
2484         }
2485
2486         ret = usb_driver_claim_interface(&uea_driver, intf, usbatm);
2487         if (ret != 0)
2488                 uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum,
2489                        ret);
2490         return ret;
2491 }
2492
2493 static struct attribute *attrs[] = {
2494         &dev_attr_stat_status.attr,
2495         &dev_attr_stat_mflags.attr,
2496         &dev_attr_stat_human_status.attr,
2497         &dev_attr_stat_delin.attr,
2498         &dev_attr_stat_vidcpe.attr,
2499         &dev_attr_stat_usrate.attr,
2500         &dev_attr_stat_dsrate.attr,
2501         &dev_attr_stat_usattenuation.attr,
2502         &dev_attr_stat_dsattenuation.attr,
2503         &dev_attr_stat_usmargin.attr,
2504         &dev_attr_stat_dsmargin.attr,
2505         &dev_attr_stat_txflow.attr,
2506         &dev_attr_stat_rxflow.attr,
2507         &dev_attr_stat_uscorr.attr,
2508         &dev_attr_stat_dscorr.attr,
2509         &dev_attr_stat_usunc.attr,
2510         &dev_attr_stat_dsunc.attr,
2511         &dev_attr_stat_firmid.attr,
2512         NULL,
2513 };
2514 static struct attribute_group attr_grp = {
2515         .attrs = attrs,
2516 };
2517
2518 static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
2519                    const struct usb_device_id *id)
2520 {
2521         struct usb_device *usb = interface_to_usbdev(intf);
2522         struct uea_softc *sc;
2523         int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
2524         unsigned int alt;
2525
2526         uea_enters(usb);
2527
2528         /* interface 0 is for firmware/monitoring */
2529         if (ifnum != UEA_INTR_IFACE_NO)
2530                 return -ENODEV;
2531
2532         usbatm->flags = (sync_wait[modem_index] ? 0 : UDSL_SKIP_HEAVY_INIT);
2533
2534         /* interface 1 is for outbound traffic */
2535         ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO);
2536         if (ret < 0)
2537                 return ret;
2538
2539         /* ADI930 has only 2 interfaces and inbound traffic is on interface 1 */
2540         if (UEA_CHIP_VERSION(id) != ADI930) {
2541                 /* interface 2 is for inbound traffic */
2542                 ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO);
2543                 if (ret < 0)
2544                         return ret;
2545         }
2546
2547         sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
2548         if (!sc) {
2549                 uea_err(usb, "uea_init: not enough memory !\n");
2550                 return -ENOMEM;
2551         }
2552
2553         sc->usb_dev = usb;
2554         usbatm->driver_data = sc;
2555         sc->usbatm = usbatm;
2556         sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0;
2557         sc->driver_info = id->driver_info;
2558
2559         /* first try to use module parameter */
2560         if (annex[sc->modem_index] == 1)
2561                 sc->annex = ANNEXA;
2562         else if (annex[sc->modem_index] == 2)
2563                 sc->annex = ANNEXB;
2564         /* try to autodetect annex */
2565         else if (sc->driver_info & AUTO_ANNEX_A)
2566                 sc->annex = ANNEXA;
2567         else if (sc->driver_info & AUTO_ANNEX_B)
2568                 sc->annex = ANNEXB;
2569         else
2570                 sc->annex = (le16_to_cpu
2571                 (sc->usb_dev->descriptor.bcdDevice) & 0x80) ? ANNEXB : ANNEXA;
2572
2573         alt = altsetting[sc->modem_index];
2574         /* ADI930 don't support iso */
2575         if (UEA_CHIP_VERSION(id) != ADI930 && alt > 0) {
2576                 if (alt <= 8 &&
2577                         usb_set_interface(usb, UEA_DS_IFACE_NO, alt) == 0) {
2578                         uea_dbg(usb, "set alternate %u for 2 interface\n", alt);
2579                         uea_info(usb, "using iso mode\n");
2580                         usbatm->flags |= UDSL_USE_ISOC | UDSL_IGNORE_EILSEQ;
2581                 } else {
2582                         uea_err(usb, "setting alternate %u failed for "
2583                                         "2 interface, using bulk mode\n", alt);
2584                 }
2585         }
2586
2587         ret = sysfs_create_group(&intf->dev.kobj, &attr_grp);
2588         if (ret < 0)
2589                 goto error;
2590
2591         ret = uea_boot(sc);
2592         if (ret < 0)
2593                 goto error_rm_grp;
2594
2595         return 0;
2596
2597 error_rm_grp:
2598         sysfs_remove_group(&intf->dev.kobj, &attr_grp);
2599 error:
2600         kfree(sc);
2601         return ret;
2602 }
2603
2604 static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
2605 {
2606         struct uea_softc *sc = usbatm->driver_data;
2607
2608         sysfs_remove_group(&intf->dev.kobj, &attr_grp);
2609         uea_stop(sc);
2610         kfree(sc);
2611 }
2612
2613 static struct usbatm_driver uea_usbatm_driver = {
2614         .driver_name = "ueagle-atm",
2615         .bind = uea_bind,
2616         .atm_start = uea_atm_open,
2617         .unbind = uea_unbind,
2618         .heavy_init = uea_heavy,
2619         .bulk_in = UEA_BULK_DATA_PIPE,
2620         .bulk_out = UEA_BULK_DATA_PIPE,
2621         .isoc_in = UEA_ISO_DATA_PIPE,
2622 };
2623
2624 static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
2625 {
2626         struct usb_device *usb = interface_to_usbdev(intf);
2627
2628         uea_enters(usb);
2629         uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) Rev (%#X): %s\n",
2630                 le16_to_cpu(usb->descriptor.idVendor),
2631                 le16_to_cpu(usb->descriptor.idProduct),
2632                 le16_to_cpu(usb->descriptor.bcdDevice),
2633                 chip_name[UEA_CHIP_VERSION(id)]);
2634
2635         usb_reset_device(usb);
2636
2637         if (UEA_IS_PREFIRM(id))
2638                 return uea_load_firmware(usb, UEA_CHIP_VERSION(id));
2639
2640         return usbatm_usb_probe(intf, id, &uea_usbatm_driver);
2641 }
2642
2643 static void uea_disconnect(struct usb_interface *intf)
2644 {
2645         struct usb_device *usb = interface_to_usbdev(intf);
2646         int ifnum = intf->altsetting->desc.bInterfaceNumber;
2647         uea_enters(usb);
2648
2649         /* ADI930 has 2 interfaces and eagle 3 interfaces.
2650          * Pre-firmware device has one interface
2651          */
2652         if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) {
2653                 mutex_lock(&uea_mutex);
2654                 usbatm_usb_disconnect(intf);
2655                 mutex_unlock(&uea_mutex);
2656                 uea_info(usb, "ADSL device removed\n");
2657         }
2658
2659         uea_leaves(usb);
2660 }
2661
2662 /*
2663  * List of supported VID/PID
2664  */
2665 static const struct usb_device_id uea_ids[] = {
2666         {USB_DEVICE(ANALOG_VID, ADI930_PID_PREFIRM),
2667                 .driver_info = ADI930 | PREFIRM},
2668         {USB_DEVICE(ANALOG_VID, ADI930_PID_PSTFIRM),
2669                 .driver_info = ADI930 | PSTFIRM},
2670         {USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PREFIRM),
2671                 .driver_info = EAGLE_I | PREFIRM},
2672         {USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PSTFIRM),
2673                 .driver_info = EAGLE_I | PSTFIRM},
2674         {USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PREFIRM),
2675                 .driver_info = EAGLE_II | PREFIRM},
2676         {USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PSTFIRM),
2677                 .driver_info = EAGLE_II | PSTFIRM},
2678         {USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PREFIRM),
2679                 .driver_info = EAGLE_II | PREFIRM},
2680         {USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PSTFIRM),
2681                 .driver_info = EAGLE_II | PSTFIRM},
2682         {USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PREFIRM),
2683                 .driver_info = EAGLE_III | PREFIRM},
2684         {USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PSTFIRM),
2685                 .driver_info = EAGLE_III | PSTFIRM},
2686         {USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PREFIRM),
2687                 .driver_info = EAGLE_IV | PREFIRM},
2688         {USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PSTFIRM),
2689                 .driver_info = EAGLE_IV | PSTFIRM},
2690         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PREFIRM),
2691                 .driver_info = EAGLE_I | PREFIRM},
2692         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PSTFIRM),
2693                 .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
2694         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PREFIRM),
2695                 .driver_info = EAGLE_I | PREFIRM},
2696         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PSTFIRM),
2697                 .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
2698         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PREFIRM),
2699                 .driver_info = EAGLE_II | PREFIRM},
2700         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PSTFIRM),
2701                 .driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_A},
2702         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PREFIRM),
2703                 .driver_info = EAGLE_II | PREFIRM},
2704         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PSTFIRM),
2705                 .driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_B},
2706         {USB_DEVICE(ELSA_VID,   ELSA_PID_PREFIRM),
2707                 .driver_info = ADI930 | PREFIRM},
2708         {USB_DEVICE(ELSA_VID,   ELSA_PID_PSTFIRM),
2709                 .driver_info = ADI930 | PSTFIRM},
2710         {USB_DEVICE(ELSA_VID,   ELSA_PID_A_PREFIRM),
2711                 .driver_info = ADI930 | PREFIRM},
2712         {USB_DEVICE(ELSA_VID,   ELSA_PID_A_PSTFIRM),
2713                 .driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_A},
2714         {USB_DEVICE(ELSA_VID,   ELSA_PID_B_PREFIRM),
2715                 .driver_info = ADI930 | PREFIRM},
2716         {USB_DEVICE(ELSA_VID,   ELSA_PID_B_PSTFIRM),
2717                 .driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_B},
2718         {USB_DEVICE(USR_VID,    MILLER_A_PID_PREFIRM),
2719                 .driver_info = EAGLE_I | PREFIRM},
2720         {USB_DEVICE(USR_VID,    MILLER_A_PID_PSTFIRM),
2721                 .driver_info = EAGLE_I | PSTFIRM  | AUTO_ANNEX_A},
2722         {USB_DEVICE(USR_VID,    MILLER_B_PID_PREFIRM),
2723                 .driver_info = EAGLE_I | PREFIRM},
2724         {USB_DEVICE(USR_VID,    MILLER_B_PID_PSTFIRM),
2725                 .driver_info = EAGLE_I | PSTFIRM  | AUTO_ANNEX_B},
2726         {USB_DEVICE(USR_VID,    HEINEKEN_A_PID_PREFIRM),
2727                 .driver_info = EAGLE_I | PREFIRM},
2728         {USB_DEVICE(USR_VID,    HEINEKEN_A_PID_PSTFIRM),
2729                 .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
2730         {USB_DEVICE(USR_VID,    HEINEKEN_B_PID_PREFIRM),
2731                 .driver_info = EAGLE_I | PREFIRM},
2732         {USB_DEVICE(USR_VID,    HEINEKEN_B_PID_PSTFIRM),
2733                 .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
2734         {}
2735 };
2736
2737 /*
2738  * USB driver descriptor
2739  */
2740 static struct usb_driver uea_driver = {
2741         .name = "ueagle-atm",
2742         .id_table = uea_ids,
2743         .probe = uea_probe,
2744         .disconnect = uea_disconnect,
2745 };
2746
2747 MODULE_DEVICE_TABLE(usb, uea_ids);
2748
2749 /**
2750  * uea_init - Initialize the module.
2751  *      Register to USB subsystem
2752  */
2753 static int __init uea_init(void)
2754 {
2755         printk(KERN_INFO "[ueagle-atm] driver " EAGLEUSBVERSION " loaded\n");
2756
2757         usb_register(&uea_driver);
2758
2759         return 0;
2760 }
2761
2762 module_init(uea_init);
2763
2764 /**
2765  * uea_exit  -  Destroy module
2766  *    Deregister with USB subsystem
2767  */
2768 static void __exit uea_exit(void)
2769 {
2770         /*
2771          * This calls automatically the uea_disconnect method if necessary:
2772          */
2773         usb_deregister(&uea_driver);
2774
2775         printk(KERN_INFO "[ueagle-atm] driver unloaded\n");
2776 }
2777
2778 module_exit(uea_exit);
2779
2780 MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka");
2781 MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver");
2782 MODULE_LICENSE("Dual BSD/GPL");