Version:  2.0.40 2.2.26 2.4.37 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18

Linux/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/crc32.h>
 61 #include <linux/usb.h>
 62 #include <linux/firmware.h>
 63 #include <linux/ctype.h>
 64 #include <linux/sched.h>
 65 #include <linux/kthread.h>
 66 #include <linux/mutex.h>
 67 #include <linux/freezer.h>
 68 #include <linux/slab.h>
 69 #include <linux/kernel.h>
 70 
 71 #include <asm/unaligned.h>
 72 
 73 #include "usbatm.h"
 74 
 75 #define EAGLEUSBVERSION "ueagle 1.4"
 76 
 77 
 78 /*
 79  * Debug macros
 80  */
 81 #define uea_dbg(usb_dev, format, args...)       \
 82         do { \
 83                 if (debug >= 1) \
 84                         dev_dbg(&(usb_dev)->dev, \
 85                                 "[ueagle-atm dbg] %s: " format, \
 86                                         __func__, ##args); \
 87         } while (0)
 88 
 89 #define uea_vdbg(usb_dev, format, args...)      \
 90         do { \
 91                 if (debug >= 2) \
 92                         dev_dbg(&(usb_dev)->dev, \
 93                                 "[ueagle-atm vdbg]  " format, ##args); \
 94         } while (0)
 95 
 96 #define uea_enters(usb_dev) \
 97         uea_vdbg(usb_dev, "entering %s\n" , __func__)
 98 
 99 #define uea_leaves(usb_dev) \
100         uea_vdbg(usb_dev, "leaving  %s\n" , __func__)
101 
102 #define uea_err(usb_dev, format, args...) \
103         dev_err(&(usb_dev)->dev , "[UEAGLE-ATM] " format , ##args)
104 
105 #define uea_warn(usb_dev, format, args...) \
106         dev_warn(&(usb_dev)->dev , "[Ueagle-atm] " format, ##args)
107 
108 #define uea_info(usb_dev, format, args...) \
109         dev_info(&(usb_dev)->dev , "[ueagle-atm] " format, ##args)
110 
111 struct intr_pkt;
112 
113 /* cmv's from firmware */
114 struct uea_cmvs_v1 {
115         u32 address;
116         u16 offset;
117         u32 data;
118 } __packed;
119 
120 struct uea_cmvs_v2 {
121         u32 group;
122         u32 address;
123         u32 offset;
124         u32 data;
125 } __packed;
126 
127 /* information about currently processed cmv */
128 struct cmv_dsc_e1 {
129         u8 function;
130         u16 idx;
131         u32 address;
132         u16 offset;
133 };
134 
135 struct cmv_dsc_e4 {
136         u16 function;
137         u16 offset;
138         u16 address;
139         u16 group;
140 };
141 
142 union cmv_dsc {
143         struct cmv_dsc_e1 e1;
144         struct cmv_dsc_e4 e4;
145 };
146 
147 struct uea_softc {
148         struct usb_device *usb_dev;
149         struct usbatm_data *usbatm;
150 
151         int modem_index;
152         unsigned int driver_info;
153         int annex;
154 #define ANNEXA 0
155 #define ANNEXB 1
156 
157         int booting;
158         int reset;
159 
160         wait_queue_head_t sync_q;
161 
162         struct task_struct *kthread;
163         u32 data;
164         u32 data1;
165 
166         int cmv_ack;
167         union cmv_dsc cmv_dsc;
168 
169         struct work_struct task;
170         u16 pageno;
171         u16 ovl;
172 
173         const struct firmware *dsp_firm;
174         struct urb *urb_int;
175 
176         void (*dispatch_cmv) (struct uea_softc *, struct intr_pkt *);
177         void (*schedule_load_page) (struct uea_softc *, struct intr_pkt *);
178         int (*stat) (struct uea_softc *);
179         int (*send_cmvs) (struct uea_softc *);
180 
181         /* keep in sync with eaglectl */
182         struct uea_stats {
183                 struct {
184                         u32 state;
185                         u32 flags;
186                         u32 mflags;
187                         u32 vidcpe;
188                         u32 vidco;
189                         u32 dsrate;
190                         u32 usrate;
191                         u32 dsunc;
192                         u32 usunc;
193                         u32 dscorr;
194                         u32 uscorr;
195                         u32 txflow;
196                         u32 rxflow;
197                         u32 usattenuation;
198                         u32 dsattenuation;
199                         u32 dsmargin;
200                         u32 usmargin;
201                         u32 firmid;
202                 } phy;
203         } stats;
204 };
205 
206 /*
207  * Elsa IDs
208  */
209 #define ELSA_VID                0x05CC
210 #define ELSA_PID_PSTFIRM        0x3350
211 #define ELSA_PID_PREFIRM        0x3351
212 
213 #define ELSA_PID_A_PREFIRM      0x3352
214 #define ELSA_PID_A_PSTFIRM      0x3353
215 #define ELSA_PID_B_PREFIRM      0x3362
216 #define ELSA_PID_B_PSTFIRM      0x3363
217 
218 /*
219  * Devolo IDs : pots if (pid & 0x10)
220  */
221 #define DEVOLO_VID                      0x1039
222 #define DEVOLO_EAGLE_I_A_PID_PSTFIRM    0x2110
223 #define DEVOLO_EAGLE_I_A_PID_PREFIRM    0x2111
224 
225 #define DEVOLO_EAGLE_I_B_PID_PSTFIRM    0x2100
226 #define DEVOLO_EAGLE_I_B_PID_PREFIRM    0x2101
227 
228 #define DEVOLO_EAGLE_II_A_PID_PSTFIRM   0x2130
229 #define DEVOLO_EAGLE_II_A_PID_PREFIRM   0x2131
230 
231 #define DEVOLO_EAGLE_II_B_PID_PSTFIRM   0x2120
232 #define DEVOLO_EAGLE_II_B_PID_PREFIRM   0x2121
233 
234 /*
235  * Reference design USB IDs
236  */
237 #define ANALOG_VID              0x1110
238 #define ADI930_PID_PREFIRM      0x9001
239 #define ADI930_PID_PSTFIRM      0x9000
240 
241 #define EAGLE_I_PID_PREFIRM     0x9010  /* Eagle I */
242 #define EAGLE_I_PID_PSTFIRM     0x900F  /* Eagle I */
243 
244 #define EAGLE_IIC_PID_PREFIRM   0x9024  /* Eagle IIC */
245 #define EAGLE_IIC_PID_PSTFIRM   0x9023  /* Eagle IIC */
246 
247 #define EAGLE_II_PID_PREFIRM    0x9022  /* Eagle II */
248 #define EAGLE_II_PID_PSTFIRM    0x9021  /* Eagle II */
249 
250 #define EAGLE_III_PID_PREFIRM   0x9032  /* Eagle III */
251 #define EAGLE_III_PID_PSTFIRM   0x9031  /* Eagle III */
252 
253 #define EAGLE_IV_PID_PREFIRM    0x9042  /* Eagle IV */
254 #define EAGLE_IV_PID_PSTFIRM    0x9041  /* Eagle IV */
255 
256 /*
257  * USR USB IDs
258  */
259 #define USR_VID                 0x0BAF
260 #define MILLER_A_PID_PREFIRM    0x00F2
261 #define MILLER_A_PID_PSTFIRM    0x00F1
262 #define MILLER_B_PID_PREFIRM    0x00FA
263 #define MILLER_B_PID_PSTFIRM    0x00F9
264 #define HEINEKEN_A_PID_PREFIRM  0x00F6
265 #define HEINEKEN_A_PID_PSTFIRM  0x00F5
266 #define HEINEKEN_B_PID_PREFIRM  0x00F8
267 #define HEINEKEN_B_PID_PSTFIRM  0x00F7
268 
269 #define PREFIRM 0
270 #define PSTFIRM (1<<7)
271 #define AUTO_ANNEX_A (1<<8)
272 #define AUTO_ANNEX_B (1<<9)
273 
274 enum {
275         ADI930 = 0,
276         EAGLE_I,
277         EAGLE_II,
278         EAGLE_III,
279         EAGLE_IV
280 };
281 
282 /* macros for both struct usb_device_id and struct uea_softc */
283 #define UEA_IS_PREFIRM(x) \
284         (!((x)->driver_info & PSTFIRM))
285 #define UEA_CHIP_VERSION(x) \
286         ((x)->driver_info & 0xf)
287 
288 #define IS_ISDN(x) \
289         ((x)->annex & ANNEXB)
290 
291 #define INS_TO_USBDEV(ins) (ins->usb_dev)
292 
293 #define GET_STATUS(data) \
294         ((data >> 8) & 0xf)
295 
296 #define IS_OPERATIONAL(sc) \
297         ((UEA_CHIP_VERSION(sc) != EAGLE_IV) ? \
298         (GET_STATUS(sc->stats.phy.state) == 2) : \
299         (sc->stats.phy.state == 7))
300 
301 /*
302  * Set of macros to handle unaligned data in the firmware blob.
303  * The FW_GET_BYTE() macro is provided only for consistency.
304  */
305 
306 #define FW_GET_BYTE(p) (*((__u8 *) (p)))
307 
308 #define FW_DIR "ueagle-atm/"
309 #define EAGLE_FIRMWARE FW_DIR "eagle.fw"
310 #define ADI930_FIRMWARE FW_DIR "adi930.fw"
311 #define EAGLE_I_FIRMWARE FW_DIR "eagleI.fw"
312 #define EAGLE_II_FIRMWARE FW_DIR "eagleII.fw"
313 #define EAGLE_III_FIRMWARE FW_DIR "eagleIII.fw"
314 #define EAGLE_IV_FIRMWARE FW_DIR "eagleIV.fw"
315 
316 #define DSP4I_FIRMWARE FW_DIR "DSP4i.bin"
317 #define DSP4P_FIRMWARE FW_DIR "DSP4p.bin"
318 #define DSP9I_FIRMWARE FW_DIR "DSP9i.bin"
319 #define DSP9P_FIRMWARE FW_DIR "DSP9p.bin"
320 #define DSPEI_FIRMWARE FW_DIR "DSPei.bin"
321 #define DSPEP_FIRMWARE FW_DIR "DSPep.bin"
322 #define FPGA930_FIRMWARE FW_DIR "930-fpga.bin"
323 
324 #define CMV4P_FIRMWARE FW_DIR "CMV4p.bin"
325 #define CMV4PV2_FIRMWARE FW_DIR "CMV4p.bin.v2"
326 #define CMV4I_FIRMWARE FW_DIR "CMV4i.bin"
327 #define CMV4IV2_FIRMWARE FW_DIR "CMV4i.bin.v2"
328 #define CMV9P_FIRMWARE FW_DIR "CMV9p.bin"
329 #define CMV9PV2_FIRMWARE FW_DIR "CMV9p.bin.v2"
330 #define CMV9I_FIRMWARE FW_DIR "CMV9i.bin"
331 #define CMV9IV2_FIRMWARE FW_DIR "CMV9i.bin.v2"
332 #define CMVEP_FIRMWARE FW_DIR "CMVep.bin"
333 #define CMVEPV2_FIRMWARE FW_DIR "CMVep.bin.v2"
334 #define CMVEI_FIRMWARE FW_DIR "CMVei.bin"
335 #define CMVEIV2_FIRMWARE FW_DIR "CMVei.bin.v2"
336 
337 #define UEA_FW_NAME_MAX 30
338 #define NB_MODEM 4
339 
340 #define BULK_TIMEOUT 300
341 #define CTRL_TIMEOUT 1000
342 
343 #define ACK_TIMEOUT msecs_to_jiffies(3000)
344 
345 #define UEA_INTR_IFACE_NO       0
346 #define UEA_US_IFACE_NO         1
347 #define UEA_DS_IFACE_NO         2
348 
349 #define FASTEST_ISO_INTF        8
350 
351 #define UEA_BULK_DATA_PIPE      0x02
352 #define UEA_IDMA_PIPE           0x04
353 #define UEA_INTR_PIPE           0x04
354 #define UEA_ISO_DATA_PIPE       0x08
355 
356 #define UEA_E1_SET_BLOCK        0x0001
357 #define UEA_E4_SET_BLOCK        0x002c
358 #define UEA_SET_MODE            0x0003
359 #define UEA_SET_2183_DATA       0x0004
360 #define UEA_SET_TIMEOUT         0x0011
361 
362 #define UEA_LOOPBACK_OFF        0x0002
363 #define UEA_LOOPBACK_ON         0x0003
364 #define UEA_BOOT_IDMA           0x0006
365 #define UEA_START_RESET         0x0007
366 #define UEA_END_RESET           0x0008
367 
368 #define UEA_SWAP_MAILBOX        (0x3fcd | 0x4000)
369 #define UEA_MPTX_START          (0x3fce | 0x4000)
370 #define UEA_MPTX_MAILBOX        (0x3fd6 | 0x4000)
371 #define UEA_MPRX_MAILBOX        (0x3fdf | 0x4000)
372 
373 /* block information in eagle4 dsp firmware  */
374 struct block_index {
375         __le32 PageOffset;
376         __le32 NotLastBlock;
377         __le32 dummy;
378         __le32 PageSize;
379         __le32 PageAddress;
380         __le16 dummy1;
381         __le16 PageNumber;
382 } __packed;
383 
384 #define E4_IS_BOOT_PAGE(PageSize) ((le32_to_cpu(PageSize)) & 0x80000000)
385 #define E4_PAGE_BYTES(PageSize) ((le32_to_cpu(PageSize) & 0x7fffffff) * 4)
386 
387 #define E4_L1_STRING_HEADER 0x10
388 #define E4_MAX_PAGE_NUMBER 0x58
389 #define E4_NO_SWAPPAGE_HEADERS 0x31
390 
391 /* l1_code is eagle4 dsp firmware format */
392 struct l1_code {
393         u8 string_header[E4_L1_STRING_HEADER];
394         u8 page_number_to_block_index[E4_MAX_PAGE_NUMBER];
395         struct block_index page_header[E4_NO_SWAPPAGE_HEADERS];
396         u8 code[0];
397 } __packed;
398 
399 /* structures describing a block within a DSP page */
400 struct block_info_e1 {
401         __le16 wHdr;
402         __le16 wAddress;
403         __le16 wSize;
404         __le16 wOvlOffset;
405         __le16 wOvl;            /* overlay */
406         __le16 wLast;
407 } __packed;
408 #define E1_BLOCK_INFO_SIZE 12
409 
410 struct block_info_e4 {
411         __be16 wHdr;
412         __u8 bBootPage;
413         __u8 bPageNumber;
414         __be32 dwSize;
415         __be32 dwAddress;
416         __be16 wReserved;
417 } __packed;
418 #define E4_BLOCK_INFO_SIZE 14
419 
420 #define UEA_BIHDR 0xabcd
421 #define UEA_RESERVED 0xffff
422 
423 /* constants describing cmv type */
424 #define E1_PREAMBLE 0x535c
425 #define E1_MODEMTOHOST 0x01
426 #define E1_HOSTTOMODEM 0x10
427 
428 #define E1_MEMACCESS 0x1
429 #define E1_ADSLDIRECTIVE 0x7
430 #define E1_FUNCTION_TYPE(f) ((f) >> 4)
431 #define E1_FUNCTION_SUBTYPE(f) ((f) & 0x0f)
432 
433 #define E4_MEMACCESS 0
434 #define E4_ADSLDIRECTIVE 0xf
435 #define E4_FUNCTION_TYPE(f) ((f) >> 8)
436 #define E4_FUNCTION_SIZE(f) ((f) & 0x0f)
437 #define E4_FUNCTION_SUBTYPE(f) (((f) >> 4) & 0x0f)
438 
439 /* for MEMACCESS */
440 #define E1_REQUESTREAD  0x0
441 #define E1_REQUESTWRITE 0x1
442 #define E1_REPLYREAD    0x2
443 #define E1_REPLYWRITE   0x3
444 
445 #define E4_REQUESTREAD  0x0
446 #define E4_REQUESTWRITE 0x4
447 #define E4_REPLYREAD    (E4_REQUESTREAD | 1)
448 #define E4_REPLYWRITE   (E4_REQUESTWRITE | 1)
449 
450 /* for ADSLDIRECTIVE */
451 #define E1_KERNELREADY 0x0
452 #define E1_MODEMREADY  0x1
453 
454 #define E4_KERNELREADY 0x0
455 #define E4_MODEMREADY  0x1
456 
457 #define E1_MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf))
458 #define E4_MAKEFUNCTION(t, st, s) (((t) & 0xf) << 8 | \
459         ((st) & 0xf) << 4 | ((s) & 0xf))
460 
461 #define E1_MAKESA(a, b, c, d)                                           \
462         (((c) & 0xff) << 24 |                                           \
463          ((d) & 0xff) << 16 |                                           \
464          ((a) & 0xff) << 8  |                                           \
465          ((b) & 0xff))
466 
467 #define E1_GETSA1(a) ((a >> 8) & 0xff)
468 #define E1_GETSA2(a) (a & 0xff)
469 #define E1_GETSA3(a) ((a >> 24) & 0xff)
470 #define E1_GETSA4(a) ((a >> 16) & 0xff)
471 
472 #define E1_SA_CNTL E1_MAKESA('C', 'N', 'T', 'L')
473 #define E1_SA_DIAG E1_MAKESA('D', 'I', 'A', 'G')
474 #define E1_SA_INFO E1_MAKESA('I', 'N', 'F', 'O')
475 #define E1_SA_OPTN E1_MAKESA('O', 'P', 'T', 'N')
476 #define E1_SA_RATE E1_MAKESA('R', 'A', 'T', 'E')
477 #define E1_SA_STAT E1_MAKESA('S', 'T', 'A', 'T')
478 
479 #define E4_SA_CNTL 1
480 #define E4_SA_STAT 2
481 #define E4_SA_INFO 3
482 #define E4_SA_TEST 4
483 #define E4_SA_OPTN 5
484 #define E4_SA_RATE 6
485 #define E4_SA_DIAG 7
486 #define E4_SA_CNFG 8
487 
488 /* structures representing a CMV (Configuration and Management Variable) */
489 struct cmv_e1 {
490         __le16 wPreamble;
491         __u8 bDirection;
492         __u8 bFunction;
493         __le16 wIndex;
494         __le32 dwSymbolicAddress;
495         __le16 wOffsetAddress;
496         __le32 dwData;
497 } __packed;
498 
499 struct cmv_e4 {
500         __be16 wGroup;
501         __be16 wFunction;
502         __be16 wOffset;
503         __be16 wAddress;
504         __be32 dwData[6];
505 } __packed;
506 
507 /* structures representing swap information */
508 struct swap_info_e1 {
509         __u8 bSwapPageNo;
510         __u8 bOvl;              /* overlay */
511 } __packed;
512 
513 struct swap_info_e4 {
514         __u8 bSwapPageNo;
515 } __packed;
516 
517 /* structures representing interrupt data */
518 #define e1_bSwapPageNo  u.e1.s1.swapinfo.bSwapPageNo
519 #define e1_bOvl         u.e1.s1.swapinfo.bOvl
520 #define e4_bSwapPageNo  u.e4.s1.swapinfo.bSwapPageNo
521 
522 #define INT_LOADSWAPPAGE 0x0001
523 #define INT_INCOMINGCMV  0x0002
524 
525 union intr_data_e1 {
526         struct {
527                 struct swap_info_e1 swapinfo;
528                 __le16 wDataSize;
529         } __packed s1;
530         struct {
531                 struct cmv_e1 cmv;
532                 __le16 wDataSize;
533         } __packed s2;
534 } __packed;
535 
536 union intr_data_e4 {
537         struct {
538                 struct swap_info_e4 swapinfo;
539                 __le16 wDataSize;
540         } __packed s1;
541         struct {
542                 struct cmv_e4 cmv;
543                 __le16 wDataSize;
544         } __packed s2;
545 } __packed;
546 
547 struct intr_pkt {
548         __u8 bType;
549         __u8 bNotification;
550         __le16 wValue;
551         __le16 wIndex;
552         __le16 wLength;
553         __le16 wInterrupt;
554         union {
555                 union intr_data_e1 e1;
556                 union intr_data_e4 e4;
557         } u;
558 } __packed;
559 
560 #define E1_INTR_PKT_SIZE 28
561 #define E4_INTR_PKT_SIZE 64
562 
563 static struct usb_driver uea_driver;
564 static DEFINE_MUTEX(uea_mutex);
565 static const char * const chip_name[] = {
566         "ADI930", "Eagle I", "Eagle II", "Eagle III", "Eagle IV"};
567 
568 static int modem_index;
569 static unsigned int debug;
570 static unsigned int altsetting[NB_MODEM] = {
571                                 [0 ... (NB_MODEM - 1)] = FASTEST_ISO_INTF};
572 static bool sync_wait[NB_MODEM];
573 static char *cmv_file[NB_MODEM];
574 static int annex[NB_MODEM];
575 
576 module_param(debug, uint, 0644);
577 MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)");
578 module_param_array(altsetting, uint, NULL, 0644);
579 MODULE_PARM_DESC(altsetting, "alternate setting for incoming traffic: 0=bulk, "
580                              "1=isoc slowest, ... , 8=isoc fastest (default)");
581 module_param_array(sync_wait, bool, NULL, 0644);
582 MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM");
583 module_param_array(cmv_file, charp, NULL, 0644);
584 MODULE_PARM_DESC(cmv_file,
585                 "file name with configuration and management variables");
586 module_param_array(annex, uint, NULL, 0644);
587 MODULE_PARM_DESC(annex,
588                 "manually set annex a/b (0=auto, 1=annex a, 2=annex b)");
589 
590 #define uea_wait(sc, cond, timeo) \
591 ({ \
592         int _r = wait_event_interruptible_timeout(sc->sync_q, \
593                         (cond) || kthread_should_stop(), timeo); \
594         if (kthread_should_stop()) \
595                 _r = -ENODEV; \
596         _r; \
597 })
598 
599 #define UPDATE_ATM_STAT(type, val) \
600         do { \
601                 if (sc->usbatm->atm_dev) \
602                         sc->usbatm->atm_dev->type = val; \
603         } while (0)
604 
605 #define UPDATE_ATM_SIGNAL(val) \
606         do { \
607                 if (sc->usbatm->atm_dev) \
608                         atm_dev_signal_change(sc->usbatm->atm_dev, val); \
609         } while (0)
610 
611 
612 /* Firmware loading */
613 #define LOAD_INTERNAL     0xA0
614 #define F8051_USBCS       0x7f92
615 
616 /**
617  * uea_send_modem_cmd - Send a command for pre-firmware devices.
618  */
619 static int uea_send_modem_cmd(struct usb_device *usb,
620                               u16 addr, u16 size, const u8 *buff)
621 {
622         int ret = -ENOMEM;
623         u8 *xfer_buff;
624 
625         xfer_buff = kmemdup(buff, size, GFP_KERNEL);
626         if (xfer_buff) {
627                 ret = usb_control_msg(usb,
628                                       usb_sndctrlpipe(usb, 0),
629                                       LOAD_INTERNAL,
630                                       USB_DIR_OUT | USB_TYPE_VENDOR |
631                                       USB_RECIP_DEVICE, addr, 0, xfer_buff,
632                                       size, CTRL_TIMEOUT);
633                 kfree(xfer_buff);
634         }
635 
636         if (ret < 0)
637                 return ret;
638 
639         return (ret == size) ? 0 : -EIO;
640 }
641 
642 static void uea_upload_pre_firmware(const struct firmware *fw_entry,
643                                                                 void *context)
644 {
645         struct usb_device *usb = context;
646         const u8 *pfw;
647         u8 value;
648         u32 crc = 0;
649         int ret, size;
650 
651         uea_enters(usb);
652         if (!fw_entry) {
653                 uea_err(usb, "firmware is not available\n");
654                 goto err;
655         }
656 
657         pfw = fw_entry->data;
658         size = fw_entry->size;
659         if (size < 4)
660                 goto err_fw_corrupted;
661 
662         crc = get_unaligned_le32(pfw);
663         pfw += 4;
664         size -= 4;
665         if (crc32_be(0, pfw, size) != crc)
666                 goto err_fw_corrupted;
667 
668         /*
669          * Start to upload firmware : send reset
670          */
671         value = 1;
672         ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value);
673 
674         if (ret < 0) {
675                 uea_err(usb, "modem reset failed with error %d\n", ret);
676                 goto err;
677         }
678 
679         while (size > 3) {
680                 u8 len = FW_GET_BYTE(pfw);
681                 u16 add = get_unaligned_le16(pfw + 1);
682 
683                 size -= len + 3;
684                 if (size < 0)
685                         goto err_fw_corrupted;
686 
687                 ret = uea_send_modem_cmd(usb, add, len, pfw + 3);
688                 if (ret < 0) {
689                         uea_err(usb, "uploading firmware data failed "
690                                         "with error %d\n", ret);
691                         goto err;
692                 }
693                 pfw += len + 3;
694         }
695 
696         if (size != 0)
697                 goto err_fw_corrupted;
698 
699         /*
700          * Tell the modem we finish : de-assert reset
701          */
702         value = 0;
703         ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value);
704         if (ret < 0)
705                 uea_err(usb, "modem de-assert failed with error %d\n", ret);
706         else
707                 uea_info(usb, "firmware uploaded\n");
708 
709         goto err;
710 
711 err_fw_corrupted:
712         uea_err(usb, "firmware is corrupted\n");
713 err:
714         release_firmware(fw_entry);
715         uea_leaves(usb);
716 }
717 
718 /**
719  * uea_load_firmware - Load usb firmware for pre-firmware devices.
720  */
721 static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
722 {
723         int ret;
724         char *fw_name = EAGLE_FIRMWARE;
725 
726         uea_enters(usb);
727         uea_info(usb, "pre-firmware device, uploading firmware\n");
728 
729         switch (ver) {
730         case ADI930:
731                 fw_name = ADI930_FIRMWARE;
732                 break;
733         case EAGLE_I:
734                 fw_name = EAGLE_I_FIRMWARE;
735                 break;
736         case EAGLE_II:
737                 fw_name = EAGLE_II_FIRMWARE;
738                 break;
739         case EAGLE_III:
740                 fw_name = EAGLE_III_FIRMWARE;
741                 break;
742         case EAGLE_IV:
743                 fw_name = EAGLE_IV_FIRMWARE;
744                 break;
745         }
746 
747         ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev,
748                                         GFP_KERNEL, usb,
749                                         uea_upload_pre_firmware);
750         if (ret)
751                 uea_err(usb, "firmware %s is not available\n", fw_name);
752         else
753                 uea_info(usb, "loading firmware %s\n", fw_name);
754 
755         uea_leaves(usb);
756         return ret;
757 }
758 
759 /* modem management : dsp firmware, send/read CMV, monitoring statistic
760  */
761 
762 /*
763  * Make sure that the DSP code provided is safe to use.
764  */
765 static int check_dsp_e1(const u8 *dsp, unsigned int len)
766 {
767         u8 pagecount, blockcount;
768         u16 blocksize;
769         u32 pageoffset;
770         unsigned int i, j, p, pp;
771 
772         pagecount = FW_GET_BYTE(dsp);
773         p = 1;
774 
775         /* enough space for page offsets? */
776         if (p + 4 * pagecount > len)
777                 return 1;
778 
779         for (i = 0; i < pagecount; i++) {
780 
781                 pageoffset = get_unaligned_le32(dsp + p);
782                 p += 4;
783 
784                 if (pageoffset == 0)
785                         continue;
786 
787                 /* enough space for blockcount? */
788                 if (pageoffset >= len)
789                         return 1;
790 
791                 pp = pageoffset;
792                 blockcount = FW_GET_BYTE(dsp + pp);
793                 pp += 1;
794 
795                 for (j = 0; j < blockcount; j++) {
796 
797                         /* enough space for block header? */
798                         if (pp + 4 > len)
799                                 return 1;
800 
801                         pp += 2;        /* skip blockaddr */
802                         blocksize = get_unaligned_le16(dsp + pp);
803                         pp += 2;
804 
805                         /* enough space for block data? */
806                         if (pp + blocksize > len)
807                                 return 1;
808 
809                         pp += blocksize;
810                 }
811         }
812 
813         return 0;
814 }
815 
816 static int check_dsp_e4(const u8 *dsp, int len)
817 {
818         int i;
819         struct l1_code *p = (struct l1_code *) dsp;
820         unsigned int sum = p->code - dsp;
821 
822         if (len < sum)
823                 return 1;
824 
825         if (strcmp("STRATIPHY ANEXA", p->string_header) != 0 &&
826             strcmp("STRATIPHY ANEXB", p->string_header) != 0)
827                 return 1;
828 
829         for (i = 0; i < E4_MAX_PAGE_NUMBER; i++) {
830                 struct block_index *blockidx;
831                 u8 blockno = p->page_number_to_block_index[i];
832                 if (blockno >= E4_NO_SWAPPAGE_HEADERS)
833                         continue;
834 
835                 do {
836                         u64 l;
837 
838                         if (blockno >= E4_NO_SWAPPAGE_HEADERS)
839                                 return 1;
840 
841                         blockidx = &p->page_header[blockno++];
842                         if ((u8 *)(blockidx + 1) - dsp  >= len)
843                                 return 1;
844 
845                         if (le16_to_cpu(blockidx->PageNumber) != i)
846                                 return 1;
847 
848                         l = E4_PAGE_BYTES(blockidx->PageSize);
849                         sum += l;
850                         l += le32_to_cpu(blockidx->PageOffset);
851                         if (l > len)
852                                 return 1;
853 
854                 /* zero is zero regardless endianes */
855                 } while (blockidx->NotLastBlock);
856         }
857 
858         return (sum == len) ? 0 : 1;
859 }
860 
861 /*
862  * send data to the idma pipe
863  * */
864 static int uea_idma_write(struct uea_softc *sc, const void *data, u32 size)
865 {
866         int ret = -ENOMEM;
867         u8 *xfer_buff;
868         int bytes_read;
869 
870         xfer_buff = kmemdup(data, size, GFP_KERNEL);
871         if (!xfer_buff) {
872                 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
873                 return ret;
874         }
875 
876         ret = usb_bulk_msg(sc->usb_dev,
877                          usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
878                          xfer_buff, size, &bytes_read, BULK_TIMEOUT);
879 
880         kfree(xfer_buff);
881         if (ret < 0)
882                 return ret;
883         if (size != bytes_read) {
884                 uea_err(INS_TO_USBDEV(sc), "size != bytes_read %d %d\n", size,
885                        bytes_read);
886                 return -EIO;
887         }
888 
889         return 0;
890 }
891 
892 static int request_dsp(struct uea_softc *sc)
893 {
894         int ret;
895         char *dsp_name;
896 
897         if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
898                 if (IS_ISDN(sc))
899                         dsp_name = DSP4I_FIRMWARE;
900                 else
901                         dsp_name = DSP4P_FIRMWARE;
902         } else if (UEA_CHIP_VERSION(sc) == ADI930) {
903                 if (IS_ISDN(sc))
904                         dsp_name = DSP9I_FIRMWARE;
905                 else
906                         dsp_name = DSP9P_FIRMWARE;
907         } else {
908                 if (IS_ISDN(sc))
909                         dsp_name = DSPEI_FIRMWARE;
910                 else
911                         dsp_name = DSPEP_FIRMWARE;
912         }
913 
914         ret = request_firmware(&sc->dsp_firm, dsp_name, &sc->usb_dev->dev);
915         if (ret < 0) {
916                 uea_err(INS_TO_USBDEV(sc),
917                        "requesting firmware %s failed with error %d\n",
918                         dsp_name, ret);
919                 return ret;
920         }
921 
922         if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
923                 ret = check_dsp_e4(sc->dsp_firm->data, sc->dsp_firm->size);
924         else
925                 ret = check_dsp_e1(sc->dsp_firm->data, sc->dsp_firm->size);
926 
927         if (ret) {
928                 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
929                        dsp_name);
930                 release_firmware(sc->dsp_firm);
931                 sc->dsp_firm = NULL;
932                 return -EILSEQ;
933         }
934 
935         return 0;
936 }
937 
938 /*
939  * The uea_load_page() function must be called within a process context
940  */
941 static void uea_load_page_e1(struct work_struct *work)
942 {
943         struct uea_softc *sc = container_of(work, struct uea_softc, task);
944         u16 pageno = sc->pageno;
945         u16 ovl = sc->ovl;
946         struct block_info_e1 bi;
947 
948         const u8 *p;
949         u8 pagecount, blockcount;
950         u16 blockaddr, blocksize;
951         u32 pageoffset;
952         int i;
953 
954         /* reload firmware when reboot start and it's loaded already */
955         if (ovl == 0 && pageno == 0 && sc->dsp_firm) {
956                 release_firmware(sc->dsp_firm);
957                 sc->dsp_firm = NULL;
958         }
959 
960         if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
961                 return;
962 
963         p = sc->dsp_firm->data;
964         pagecount = FW_GET_BYTE(p);
965         p += 1;
966 
967         if (pageno >= pagecount)
968                 goto bad1;
969 
970         p += 4 * pageno;
971         pageoffset = get_unaligned_le32(p);
972 
973         if (pageoffset == 0)
974                 goto bad1;
975 
976         p = sc->dsp_firm->data + pageoffset;
977         blockcount = FW_GET_BYTE(p);
978         p += 1;
979 
980         uea_dbg(INS_TO_USBDEV(sc),
981                "sending %u blocks for DSP page %u\n", blockcount, pageno);
982 
983         bi.wHdr = cpu_to_le16(UEA_BIHDR);
984         bi.wOvl = cpu_to_le16(ovl);
985         bi.wOvlOffset = cpu_to_le16(ovl | 0x8000);
986 
987         for (i = 0; i < blockcount; i++) {
988                 blockaddr = get_unaligned_le16(p);
989                 p += 2;
990 
991                 blocksize = get_unaligned_le16(p);
992                 p += 2;
993 
994                 bi.wSize = cpu_to_le16(blocksize);
995                 bi.wAddress = cpu_to_le16(blockaddr);
996                 bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0);
997 
998                 /* send block info through the IDMA pipe */
999                 if (uea_idma_write(sc, &bi, E1_BLOCK_INFO_SIZE))
1000                         goto bad2;
1001 
1002                 /* send block data through the IDMA pipe */
1003                 if (uea_idma_write(sc, p, blocksize))
1004                         goto bad2;
1005 
1006                 p += blocksize;
1007         }
1008 
1009         return;
1010 
1011 bad2:
1012         uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i);
1013         return;
1014 bad1:
1015         uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n", pageno);
1016 }
1017 
1018 static void __uea_load_page_e4(struct uea_softc *sc, u8 pageno, int boot)
1019 {
1020         struct block_info_e4 bi;
1021         struct block_index *blockidx;
1022         struct l1_code *p = (struct l1_code *) sc->dsp_firm->data;
1023         u8 blockno = p->page_number_to_block_index[pageno];
1024 
1025         bi.wHdr = cpu_to_be16(UEA_BIHDR);
1026         bi.bBootPage = boot;
1027         bi.bPageNumber = pageno;
1028         bi.wReserved = cpu_to_be16(UEA_RESERVED);
1029 
1030         do {
1031                 const u8 *blockoffset;
1032                 unsigned int blocksize;
1033 
1034                 blockidx = &p->page_header[blockno];
1035                 blocksize = E4_PAGE_BYTES(blockidx->PageSize);
1036                 blockoffset = sc->dsp_firm->data + le32_to_cpu(
1037                                                         blockidx->PageOffset);
1038 
1039                 bi.dwSize = cpu_to_be32(blocksize);
1040                 bi.dwAddress = cpu_to_be32(le32_to_cpu(blockidx->PageAddress));
1041 
1042                 uea_dbg(INS_TO_USBDEV(sc),
1043                         "sending block %u for DSP page "
1044                         "%u size %u address %x\n",
1045                         blockno, pageno, blocksize,
1046                         le32_to_cpu(blockidx->PageAddress));
1047 
1048                 /* send block info through the IDMA pipe */
1049                 if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
1050                         goto bad;
1051 
1052                 /* send block data through the IDMA pipe */
1053                 if (uea_idma_write(sc, blockoffset, blocksize))
1054                         goto bad;
1055 
1056                 blockno++;
1057         } while (blockidx->NotLastBlock);
1058 
1059         return;
1060 
1061 bad:
1062         uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", blockno);
1063         return;
1064 }
1065 
1066 static void uea_load_page_e4(struct work_struct *work)
1067 {
1068         struct uea_softc *sc = container_of(work, struct uea_softc, task);
1069         u8 pageno = sc->pageno;
1070         int i;
1071         struct block_info_e4 bi;
1072         struct l1_code *p;
1073 
1074         uea_dbg(INS_TO_USBDEV(sc), "sending DSP page %u\n", pageno);
1075 
1076         /* reload firmware when reboot start and it's loaded already */
1077         if (pageno == 0 && sc->dsp_firm) {
1078                 release_firmware(sc->dsp_firm);
1079                 sc->dsp_firm = NULL;
1080         }
1081 
1082         if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
1083                 return;
1084 
1085         p = (struct l1_code *) sc->dsp_firm->data;
1086         if (pageno >= le16_to_cpu(p->page_header[0].PageNumber)) {
1087                 uea_err(INS_TO_USBDEV(sc), "invalid DSP "
1088                                                 "page %u requested\n", pageno);
1089                 return;
1090         }
1091 
1092         if (pageno != 0) {
1093                 __uea_load_page_e4(sc, pageno, 0);
1094                 return;
1095         }
1096 
1097         uea_dbg(INS_TO_USBDEV(sc),
1098                "sending Main DSP page %u\n", p->page_header[0].PageNumber);
1099 
1100         for (i = 0; i < le16_to_cpu(p->page_header[0].PageNumber); i++) {
1101                 if (E4_IS_BOOT_PAGE(p->page_header[i].PageSize))
1102                         __uea_load_page_e4(sc, i, 1);
1103         }
1104 
1105         uea_dbg(INS_TO_USBDEV(sc) , "sending start bi\n");
1106 
1107         bi.wHdr = cpu_to_be16(UEA_BIHDR);
1108         bi.bBootPage = 0;
1109         bi.bPageNumber = 0xff;
1110         bi.wReserved = cpu_to_be16(UEA_RESERVED);
1111         bi.dwSize = cpu_to_be32(E4_PAGE_BYTES(p->page_header[0].PageSize));
1112         bi.dwAddress = cpu_to_be32(le32_to_cpu(p->page_header[0].PageAddress));
1113 
1114         /* send block info through the IDMA pipe */
1115         if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
1116                 uea_err(INS_TO_USBDEV(sc), "sending DSP start bi failed\n");
1117 }
1118 
1119 static inline void wake_up_cmv_ack(struct uea_softc *sc)
1120 {
1121         BUG_ON(sc->cmv_ack);
1122         sc->cmv_ack = 1;
1123         wake_up(&sc->sync_q);
1124 }
1125 
1126 static inline int wait_cmv_ack(struct uea_softc *sc)
1127 {
1128         int ret = uea_wait(sc, sc->cmv_ack , ACK_TIMEOUT);
1129 
1130         sc->cmv_ack = 0;
1131 
1132         uea_dbg(INS_TO_USBDEV(sc), "wait_event_timeout : %d ms\n",
1133                         jiffies_to_msecs(ret));
1134 
1135         if (ret < 0)
1136                 return ret;
1137 
1138         return (ret == 0) ? -ETIMEDOUT : 0;
1139 }
1140 
1141 #define UCDC_SEND_ENCAPSULATED_COMMAND 0x00
1142 
1143 static int uea_request(struct uea_softc *sc,
1144                 u16 value, u16 index, u16 size, const void *data)
1145 {
1146         u8 *xfer_buff;
1147         int ret = -ENOMEM;
1148 
1149         xfer_buff = kmemdup(data, size, GFP_KERNEL);
1150         if (!xfer_buff) {
1151                 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
1152                 return ret;
1153         }
1154 
1155         ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
1156                               UCDC_SEND_ENCAPSULATED_COMMAND,
1157                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1158                               value, index, xfer_buff, size, CTRL_TIMEOUT);
1159 
1160         kfree(xfer_buff);
1161         if (ret < 0) {
1162                 uea_err(INS_TO_USBDEV(sc), "usb_control_msg error %d\n", ret);
1163                 return ret;
1164         }
1165 
1166         if (ret != size) {
1167                 uea_err(INS_TO_USBDEV(sc),
1168                        "usb_control_msg send only %d bytes (instead of %d)\n",
1169                        ret, size);
1170                 return -EIO;
1171         }
1172 
1173         return 0;
1174 }
1175 
1176 static int uea_cmv_e1(struct uea_softc *sc,
1177                 u8 function, u32 address, u16 offset, u32 data)
1178 {
1179         struct cmv_e1 cmv;
1180         int ret;
1181 
1182         uea_enters(INS_TO_USBDEV(sc));
1183         uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Address : %c%c%c%c, "
1184                         "offset : 0x%04x, data : 0x%08x\n",
1185                         E1_FUNCTION_TYPE(function),
1186                         E1_FUNCTION_SUBTYPE(function),
1187                         E1_GETSA1(address), E1_GETSA2(address),
1188                         E1_GETSA3(address),
1189                         E1_GETSA4(address), offset, data);
1190 
1191         /* we send a request, but we expect a reply */
1192         sc->cmv_dsc.e1.function = function | 0x2;
1193         sc->cmv_dsc.e1.idx++;
1194         sc->cmv_dsc.e1.address = address;
1195         sc->cmv_dsc.e1.offset = offset;
1196 
1197         cmv.wPreamble = cpu_to_le16(E1_PREAMBLE);
1198         cmv.bDirection = E1_HOSTTOMODEM;
1199         cmv.bFunction = function;
1200         cmv.wIndex = cpu_to_le16(sc->cmv_dsc.e1.idx);
1201         put_unaligned_le32(address, &cmv.dwSymbolicAddress);
1202         cmv.wOffsetAddress = cpu_to_le16(offset);
1203         put_unaligned_le32(data >> 16 | data << 16, &cmv.dwData);
1204 
1205         ret = uea_request(sc, UEA_E1_SET_BLOCK, UEA_MPTX_START,
1206                                                         sizeof(cmv), &cmv);
1207         if (ret < 0)
1208                 return ret;
1209         ret = wait_cmv_ack(sc);
1210         uea_leaves(INS_TO_USBDEV(sc));
1211         return ret;
1212 }
1213 
1214 static int uea_cmv_e4(struct uea_softc *sc,
1215                 u16 function, u16 group, u16 address, u16 offset, u32 data)
1216 {
1217         struct cmv_e4 cmv;
1218         int ret;
1219 
1220         uea_enters(INS_TO_USBDEV(sc));
1221         memset(&cmv, 0, sizeof(cmv));
1222 
1223         uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Group : 0x%04x, "
1224                  "Address : 0x%04x, offset : 0x%04x, data : 0x%08x\n",
1225                  E4_FUNCTION_TYPE(function), E4_FUNCTION_SUBTYPE(function),
1226                  group, address, offset, data);
1227 
1228         /* we send a request, but we expect a reply */
1229         sc->cmv_dsc.e4.function = function | (0x1 << 4);
1230         sc->cmv_dsc.e4.offset = offset;
1231         sc->cmv_dsc.e4.address = address;
1232         sc->cmv_dsc.e4.group = group;
1233 
1234         cmv.wFunction = cpu_to_be16(function);
1235         cmv.wGroup = cpu_to_be16(group);
1236         cmv.wAddress = cpu_to_be16(address);
1237         cmv.wOffset = cpu_to_be16(offset);
1238         cmv.dwData[0] = cpu_to_be32(data);
1239 
1240         ret = uea_request(sc, UEA_E4_SET_BLOCK, UEA_MPTX_START,
1241                                                         sizeof(cmv), &cmv);
1242         if (ret < 0)
1243                 return ret;
1244         ret = wait_cmv_ack(sc);
1245         uea_leaves(INS_TO_USBDEV(sc));
1246         return ret;
1247 }
1248 
1249 static inline int uea_read_cmv_e1(struct uea_softc *sc,
1250                 u32 address, u16 offset, u32 *data)
1251 {
1252         int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTREAD),
1253                           address, offset, 0);
1254         if (ret < 0)
1255                 uea_err(INS_TO_USBDEV(sc),
1256                         "reading cmv failed with error %d\n", ret);
1257         else
1258                 *data = sc->data;
1259 
1260         return ret;
1261 }
1262 
1263 static inline int uea_read_cmv_e4(struct uea_softc *sc,
1264                 u8 size, u16 group, u16 address, u16 offset, u32 *data)
1265 {
1266         int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
1267                                                         E4_REQUESTREAD, size),
1268                           group, address, offset, 0);
1269         if (ret < 0)
1270                 uea_err(INS_TO_USBDEV(sc),
1271                         "reading cmv failed with error %d\n", ret);
1272         else {
1273                 *data = sc->data;
1274                 /* size is in 16-bit word quantities */
1275                 if (size > 2)
1276                         *(data + 1) = sc->data1;
1277         }
1278         return ret;
1279 }
1280 
1281 static inline int uea_write_cmv_e1(struct uea_softc *sc,
1282                 u32 address, u16 offset, u32 data)
1283 {
1284         int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTWRITE),
1285                           address, offset, data);
1286         if (ret < 0)
1287                 uea_err(INS_TO_USBDEV(sc),
1288                         "writing cmv failed with error %d\n", ret);
1289 
1290         return ret;
1291 }
1292 
1293 static inline int uea_write_cmv_e4(struct uea_softc *sc,
1294                 u8 size, u16 group, u16 address, u16 offset, u32 data)
1295 {
1296         int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
1297                                                         E4_REQUESTWRITE, size),
1298                           group, address, offset, data);
1299         if (ret < 0)
1300                 uea_err(INS_TO_USBDEV(sc),
1301                         "writing cmv failed with error %d\n", ret);
1302 
1303         return ret;
1304 }
1305 
1306 static void uea_set_bulk_timeout(struct uea_softc *sc, u32 dsrate)
1307 {
1308         int ret;
1309         u16 timeout;
1310 
1311         /* in bulk mode the modem have problem with high rate
1312          * changing internal timing could improve things, but the
1313          * value is mysterious.
1314          * ADI930 don't support it (-EPIPE error).
1315          */
1316 
1317         if (UEA_CHIP_VERSION(sc) == ADI930 ||
1318             altsetting[sc->modem_index] > 0 ||
1319             sc->stats.phy.dsrate == dsrate)
1320                 return;
1321 
1322         /* Original timming (1Mbit/s) from ADI (used in windows driver) */
1323         timeout = (dsrate <= 1024*1024) ? 0 : 1;
1324         ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
1325         uea_info(INS_TO_USBDEV(sc), "setting new timeout %d%s\n",
1326                  timeout,  ret < 0 ? " failed" : "");
1327 
1328 }
1329 
1330 /*
1331  * Monitor the modem and update the stat
1332  * return 0 if everything is ok
1333  * return < 0 if an error occurs (-EAGAIN reboot needed)
1334  */
1335 static int uea_stat_e1(struct uea_softc *sc)
1336 {
1337         u32 data;
1338         int ret;
1339 
1340         uea_enters(INS_TO_USBDEV(sc));
1341         data = sc->stats.phy.state;
1342 
1343         ret = uea_read_cmv_e1(sc, E1_SA_STAT, 0, &sc->stats.phy.state);
1344         if (ret < 0)
1345                 return ret;
1346 
1347         switch (GET_STATUS(sc->stats.phy.state)) {
1348         case 0:         /* not yet synchronized */
1349                 uea_dbg(INS_TO_USBDEV(sc),
1350                        "modem not yet synchronized\n");
1351                 return 0;
1352 
1353         case 1:         /* initialization */
1354                 uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
1355                 return 0;
1356 
1357         case 2:         /* operational */
1358                 uea_vdbg(INS_TO_USBDEV(sc), "modem operational\n");
1359                 break;
1360 
1361         case 3:         /* fail ... */
1362                 uea_info(INS_TO_USBDEV(sc), "modem synchronization failed"
1363                                         " (may be try other cmv/dsp)\n");
1364                 return -EAGAIN;
1365 
1366         case 4 ... 6:   /* test state */
1367                 uea_warn(INS_TO_USBDEV(sc),
1368                                 "modem in test mode - not supported\n");
1369                 return -EAGAIN;
1370 
1371         case 7:         /* fast-retain ... */
1372                 uea_info(INS_TO_USBDEV(sc), "modem in fast-retain mode\n");
1373                 return 0;
1374         default:
1375                 uea_err(INS_TO_USBDEV(sc), "modem invalid SW mode %d\n",
1376                         GET_STATUS(sc->stats.phy.state));
1377                 return -EAGAIN;
1378         }
1379 
1380         if (GET_STATUS(data) != 2) {
1381                 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
1382                 uea_info(INS_TO_USBDEV(sc), "modem operational\n");
1383 
1384                 /* release the dsp firmware as it is not needed until
1385                  * the next failure
1386                  */
1387                 release_firmware(sc->dsp_firm);
1388                 sc->dsp_firm = NULL;
1389         }
1390 
1391         /* always update it as atm layer could not be init when we switch to
1392          * operational state
1393          */
1394         UPDATE_ATM_SIGNAL(ATM_PHY_SIG_FOUND);
1395 
1396         /* wake up processes waiting for synchronization */
1397         wake_up(&sc->sync_q);
1398 
1399         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 2, &sc->stats.phy.flags);
1400         if (ret < 0)
1401                 return ret;
1402         sc->stats.phy.mflags |= sc->stats.phy.flags;
1403 
1404         /* in case of a flags ( for example delineation LOSS (& 0x10)),
1405          * we check the status again in order to detect the failure earlier
1406          */
1407         if (sc->stats.phy.flags) {
1408                 uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
1409                        sc->stats.phy.flags);
1410                 return 0;
1411         }
1412 
1413         ret = uea_read_cmv_e1(sc, E1_SA_RATE, 0, &data);
1414         if (ret < 0)
1415                 return ret;
1416 
1417         uea_set_bulk_timeout(sc, (data >> 16) * 32);
1418         sc->stats.phy.dsrate = (data >> 16) * 32;
1419         sc->stats.phy.usrate = (data & 0xffff) * 32;
1420         UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
1421 
1422         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 23, &data);
1423         if (ret < 0)
1424                 return ret;
1425         sc->stats.phy.dsattenuation = (data & 0xff) / 2;
1426 
1427         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 47, &data);
1428         if (ret < 0)
1429                 return ret;
1430         sc->stats.phy.usattenuation = (data & 0xff) / 2;
1431 
1432         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 25, &sc->stats.phy.dsmargin);
1433         if (ret < 0)
1434                 return ret;
1435 
1436         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 49, &sc->stats.phy.usmargin);
1437         if (ret < 0)
1438                 return ret;
1439 
1440         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 51, &sc->stats.phy.rxflow);
1441         if (ret < 0)
1442                 return ret;
1443 
1444         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 52, &sc->stats.phy.txflow);
1445         if (ret < 0)
1446                 return ret;
1447 
1448         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 54, &sc->stats.phy.dsunc);
1449         if (ret < 0)
1450                 return ret;
1451 
1452         /* only for atu-c */
1453         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 58, &sc->stats.phy.usunc);
1454         if (ret < 0)
1455                 return ret;
1456 
1457         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 53, &sc->stats.phy.dscorr);
1458         if (ret < 0)
1459                 return ret;
1460 
1461         /* only for atu-c */
1462         ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 57, &sc->stats.phy.uscorr);
1463         if (ret < 0)
1464                 return ret;
1465 
1466         ret = uea_read_cmv_e1(sc, E1_SA_INFO, 8, &sc->stats.phy.vidco);
1467         if (ret < 0)
1468                 return ret;
1469 
1470         ret = uea_read_cmv_e1(sc, E1_SA_INFO, 13, &sc->stats.phy.vidcpe);
1471         if (ret < 0)
1472                 return ret;
1473 
1474         return 0;
1475 }
1476 
1477 static int uea_stat_e4(struct uea_softc *sc)
1478 {
1479         u32 data;
1480         u32 tmp_arr[2];
1481         int ret;
1482 
1483         uea_enters(INS_TO_USBDEV(sc));
1484         data = sc->stats.phy.state;
1485 
1486         /* XXX only need to be done before operationnal... */
1487         ret = uea_read_cmv_e4(sc, 1, E4_SA_STAT, 0, 0, &sc->stats.phy.state);
1488         if (ret < 0)
1489                 return ret;
1490 
1491         switch (sc->stats.phy.state) {
1492         case 0x0:       /* not yet synchronized */
1493         case 0x1:
1494         case 0x3:
1495         case 0x4:
1496                 uea_dbg(INS_TO_USBDEV(sc), "modem not yet "
1497                                                 "synchronized\n");
1498                 return 0;
1499         case 0x5:       /* initialization */
1500         case 0x6:
1501         case 0x9:
1502         case 0xa:
1503                 uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
1504                 return 0;
1505         case 0x2:       /* fail ... */
1506                 uea_info(INS_TO_USBDEV(sc), "modem synchronization "
1507                                 "failed (may be try other cmv/dsp)\n");
1508                 return -EAGAIN;
1509         case 0x7:       /* operational */
1510                 break;
1511         default:
1512                 uea_warn(INS_TO_USBDEV(sc), "unknown state: %x\n",
1513                                                 sc->stats.phy.state);
1514                 return 0;
1515         }
1516 
1517         if (data != 7) {
1518                 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
1519                 uea_info(INS_TO_USBDEV(sc), "modem operational\n");
1520 
1521                 /* release the dsp firmware as it is not needed until
1522                  * the next failure
1523                  */
1524                 release_firmware(sc->dsp_firm);
1525                 sc->dsp_firm = NULL;
1526         }
1527 
1528         /* always update it as atm layer could not be init when we switch to
1529          * operational state
1530          */
1531         UPDATE_ATM_SIGNAL(ATM_PHY_SIG_FOUND);
1532 
1533         /* wake up processes waiting for synchronization */
1534         wake_up(&sc->sync_q);
1535 
1536         /* TODO improve this state machine :
1537          * we need some CMV info : what they do and their unit
1538          * we should find the equivalent of eagle3- CMV
1539          */
1540         /* check flags */
1541         ret = uea_read_cmv_e4(sc, 1, E4_SA_DIAG, 0, 0, &sc->stats.phy.flags);
1542         if (ret < 0)
1543                 return ret;
1544         sc->stats.phy.mflags |= sc->stats.phy.flags;
1545 
1546         /* in case of a flags ( for example delineation LOSS (& 0x10)),
1547          * we check the status again in order to detect the failure earlier
1548          */
1549         if (sc->stats.phy.flags) {
1550                 uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
1551                        sc->stats.phy.flags);
1552                 if (sc->stats.phy.flags & 1) /* delineation LOSS */
1553                         return -EAGAIN;
1554                 if (sc->stats.phy.flags & 0x4000) /* Reset Flag */
1555                         return -EAGAIN;
1556                 return 0;
1557         }
1558 
1559         /* rate data may be in upper or lower half of 64 bit word, strange */
1560         ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 0, 0, tmp_arr);
1561         if (ret < 0)
1562                 return ret;
1563         data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
1564         sc->stats.phy.usrate = data / 1000;
1565 
1566         ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 1, 0, tmp_arr);
1567         if (ret < 0)
1568                 return ret;
1569         data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
1570         uea_set_bulk_timeout(sc, data / 1000);
1571         sc->stats.phy.dsrate = data / 1000;
1572         UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
1573 
1574         ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 1, &data);
1575         if (ret < 0)
1576                 return ret;
1577         sc->stats.phy.dsattenuation = data / 10;
1578 
1579         ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 1, &data);
1580         if (ret < 0)
1581                 return ret;
1582         sc->stats.phy.usattenuation = data / 10;
1583 
1584         ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 3, &data);
1585         if (ret < 0)
1586                 return ret;
1587         sc->stats.phy.dsmargin = data / 2;
1588 
1589         ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 3, &data);
1590         if (ret < 0)
1591                 return ret;
1592         sc->stats.phy.usmargin = data / 10;
1593 
1594         return 0;
1595 }
1596 
1597 static void cmvs_file_name(struct uea_softc *sc, char *const cmv_name, int ver)
1598 {
1599         char file_arr[] = "CMVxy.bin";
1600         char *file;
1601 
1602         kparam_block_sysfs_write(cmv_file);
1603         /* set proper name corresponding modem version and line type */
1604         if (cmv_file[sc->modem_index] == NULL) {
1605                 if (UEA_CHIP_VERSION(sc) == ADI930)
1606                         file_arr[3] = '9';
1607                 else if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
1608                         file_arr[3] = '4';
1609                 else
1610                         file_arr[3] = 'e';
1611 
1612                 file_arr[4] = IS_ISDN(sc) ? 'i' : 'p';
1613                 file = file_arr;
1614         } else
1615                 file = cmv_file[sc->modem_index];
1616 
1617         strcpy(cmv_name, FW_DIR);
1618         strlcat(cmv_name, file, UEA_FW_NAME_MAX);
1619         if (ver == 2)
1620                 strlcat(cmv_name, ".v2", UEA_FW_NAME_MAX);
1621         kparam_unblock_sysfs_write(cmv_file);
1622 }
1623 
1624 static int request_cmvs_old(struct uea_softc *sc,
1625                  void **cmvs, const struct firmware **fw)
1626 {
1627         int ret, size;
1628         u8 *data;
1629         char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */
1630 
1631         cmvs_file_name(sc, cmv_name, 1);
1632         ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
1633         if (ret < 0) {
1634                 uea_err(INS_TO_USBDEV(sc),
1635                        "requesting firmware %s failed with error %d\n",
1636                        cmv_name, ret);
1637                 return ret;
1638         }
1639 
1640         data = (u8 *) (*fw)->data;
1641         size = (*fw)->size;
1642         if (size < 1)
1643                 goto err_fw_corrupted;
1644 
1645         if (size != *data * sizeof(struct uea_cmvs_v1) + 1)
1646                 goto err_fw_corrupted;
1647 
1648         *cmvs = (void *)(data + 1);
1649         return *data;
1650 
1651 err_fw_corrupted:
1652         uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
1653         release_firmware(*fw);
1654         return -EILSEQ;
1655 }
1656 
1657 static int request_cmvs(struct uea_softc *sc,
1658                  void **cmvs, const struct firmware **fw, int *ver)
1659 {
1660         int ret, size;
1661         u32 crc;
1662         u8 *data;
1663         char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */
1664 
1665         cmvs_file_name(sc, cmv_name, 2);
1666         ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
1667         if (ret < 0) {
1668                 /* if caller can handle old version, try to provide it */
1669                 if (*ver == 1) {
1670                         uea_warn(INS_TO_USBDEV(sc), "requesting "
1671                                                         "firmware %s failed, "
1672                                 "try to get older cmvs\n", cmv_name);
1673                         return request_cmvs_old(sc, cmvs, fw);
1674                 }
1675                 uea_err(INS_TO_USBDEV(sc),
1676                        "requesting firmware %s failed with error %d\n",
1677                        cmv_name, ret);
1678                 return ret;
1679         }
1680 
1681         size = (*fw)->size;
1682         data = (u8 *) (*fw)->data;
1683         if (size < 4 || strncmp(data, "cmv2", 4) != 0) {
1684                 if (*ver == 1) {
1685                         uea_warn(INS_TO_USBDEV(sc), "firmware %s is corrupted,"
1686                                 " try to get older cmvs\n", cmv_name);
1687                         release_firmware(*fw);
1688                         return request_cmvs_old(sc, cmvs, fw);
1689                 }
1690                 goto err_fw_corrupted;
1691         }
1692 
1693         *ver = 2;
1694 
1695         data += 4;
1696         size -= 4;
1697         if (size < 5)
1698                 goto err_fw_corrupted;
1699 
1700         crc = get_unaligned_le32(data);
1701         data += 4;
1702         size -= 4;
1703         if (crc32_be(0, data, size) != crc)
1704                 goto err_fw_corrupted;
1705 
1706         if (size != *data * sizeof(struct uea_cmvs_v2) + 1)
1707                 goto err_fw_corrupted;
1708 
1709         *cmvs = (void *) (data + 1);
1710         return *data;
1711 
1712 err_fw_corrupted:
1713         uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
1714         release_firmware(*fw);
1715         return -EILSEQ;
1716 }
1717 
1718 static int uea_send_cmvs_e1(struct uea_softc *sc)
1719 {
1720         int i, ret, len;
1721         void *cmvs_ptr;
1722         const struct firmware *cmvs_fw;
1723         int ver = 1; /* we can handle v1 cmv firmware version; */
1724 
1725         /* Enter in R-IDLE (cmv) until instructed otherwise */
1726         ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 1);
1727         if (ret < 0)
1728                 return ret;
1729 
1730         /* Dump firmware version */
1731         ret = uea_read_cmv_e1(sc, E1_SA_INFO, 10, &sc->stats.phy.firmid);
1732         if (ret < 0)
1733                 return ret;
1734         uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
1735                         sc->stats.phy.firmid);
1736 
1737         /* get options */
1738         ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
1739         if (ret < 0)
1740                 return ret;
1741 
1742         /* send options */
1743         if (ver == 1) {
1744                 struct uea_cmvs_v1 *cmvs_v1 = cmvs_ptr;
1745 
1746                 uea_warn(INS_TO_USBDEV(sc), "use deprecated cmvs version, "
1747                         "please update your firmware\n");
1748 
1749                 for (i = 0; i < len; i++) {
1750                         ret = uea_write_cmv_e1(sc,
1751                                 get_unaligned_le32(&cmvs_v1[i].address),
1752                                 get_unaligned_le16(&cmvs_v1[i].offset),
1753                                 get_unaligned_le32(&cmvs_v1[i].data));
1754                         if (ret < 0)
1755                                 goto out;
1756                 }
1757         } else if (ver == 2) {
1758                 struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
1759 
1760                 for (i = 0; i < len; i++) {
1761                         ret = uea_write_cmv_e1(sc,
1762                                 get_unaligned_le32(&cmvs_v2[i].address),
1763                                 (u16) get_unaligned_le32(&cmvs_v2[i].offset),
1764                                 get_unaligned_le32(&cmvs_v2[i].data));
1765                         if (ret < 0)
1766                                 goto out;
1767                 }
1768         } else {
1769                 /* This really should not happen */
1770                 uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
1771                 goto out;
1772         }
1773 
1774         /* Enter in R-ACT-REQ */
1775         ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 2);
1776         uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
1777         uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
1778                                                 "synchronization...\n");
1779 out:
1780         release_firmware(cmvs_fw);
1781         return ret;
1782 }
1783 
1784 static int uea_send_cmvs_e4(struct uea_softc *sc)
1785 {
1786         int i, ret, len;
1787         void *cmvs_ptr;
1788         const struct firmware *cmvs_fw;
1789         int ver = 2; /* we can only handle v2 cmv firmware version; */
1790 
1791         /* Enter in R-IDLE (cmv) until instructed otherwise */
1792         ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 1);
1793         if (ret < 0)
1794                 return ret;
1795 
1796         /* Dump firmware version */
1797         /* XXX don't read the 3th byte as it is always 6 */
1798         ret = uea_read_cmv_e4(sc, 2, E4_SA_INFO, 55, 0, &sc->stats.phy.firmid);
1799         if (ret < 0)
1800                 return ret;
1801         uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
1802                         sc->stats.phy.firmid);
1803 
1804 
1805         /* get options */
1806         ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
1807         if (ret < 0)
1808                 return ret;
1809 
1810         /* send options */
1811         if (ver == 2) {
1812                 struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
1813 
1814                 for (i = 0; i < len; i++) {
1815                         ret = uea_write_cmv_e4(sc, 1,
1816                                 get_unaligned_le32(&cmvs_v2[i].group),
1817                                 get_unaligned_le32(&cmvs_v2[i].address),
1818                                 get_unaligned_le32(&cmvs_v2[i].offset),
1819                                 get_unaligned_le32(&cmvs_v2[i].data));
1820                         if (ret < 0)
1821                                 goto out;
1822                 }
1823         } else {
1824                 /* This really should not happen */
1825                 uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
1826                 goto out;
1827         }
1828 
1829         /* Enter in R-ACT-REQ */
1830         ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 2);
1831         uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
1832         uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
1833                                                 "synchronization...\n");
1834 out:
1835         release_firmware(cmvs_fw);
1836         return ret;
1837 }
1838 
1839 /* Start boot post firmware modem:
1840  * - send reset commands through usb control pipe
1841  * - start workqueue for DSP loading
1842  * - send CMV options to modem
1843  */
1844 
1845 static int uea_start_reset(struct uea_softc *sc)
1846 {
1847         u16 zero = 0;   /* ;-) */
1848         int ret;
1849 
1850         uea_enters(INS_TO_USBDEV(sc));
1851         uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");
1852 
1853         /* mask interrupt */
1854         sc->booting = 1;
1855         /* We need to set this here because, a ack timeout could have occurred,
1856          * but before we start the reboot, the ack occurs and set this to 1.
1857          * So we will failed to wait Ready CMV.
1858          */
1859         sc->cmv_ack = 0;
1860         UPDATE_ATM_SIGNAL(ATM_PHY_SIG_LOST);
1861 
1862         /* reset statistics */
1863         memset(&sc->stats, 0, sizeof(struct uea_stats));
1864 
1865         /* tell the modem that we want to boot in IDMA mode */
1866         uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1867         uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL);
1868 
1869         /* enter reset mode */
1870         uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL);
1871 
1872         /* original driver use 200ms, but windows driver use 100ms */
1873         ret = uea_wait(sc, 0, msecs_to_jiffies(100));
1874         if (ret < 0)
1875                 return ret;
1876 
1877         /* leave reset mode */
1878         uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);
1879 
1880         if (UEA_CHIP_VERSION(sc) != EAGLE_IV) {
1881                 /* clear tx and rx mailboxes */
1882                 uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
1883                 uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
1884                 uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
1885         }
1886 
1887         ret = uea_wait(sc, 0, msecs_to_jiffies(1000));
1888         if (ret < 0)
1889                 return ret;
1890 
1891         if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
1892                 sc->cmv_dsc.e4.function = E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
1893                                                         E4_MODEMREADY, 1);
1894         else
1895                 sc->cmv_dsc.e1.function = E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
1896                                                         E1_MODEMREADY);
1897 
1898         /* demask interrupt */
1899         sc->booting = 0;
1900 
1901         /* start loading DSP */
1902         sc->pageno = 0;
1903         sc->ovl = 0;
1904         schedule_work(&sc->task);
1905 
1906         /* wait for modem ready CMV */
1907         ret = wait_cmv_ack(sc);
1908         if (ret < 0)
1909                 return ret;
1910 
1911         uea_vdbg(INS_TO_USBDEV(sc), "Ready CMV received\n");
1912 
1913         ret = sc->send_cmvs(sc);
1914         if (ret < 0)
1915                 return ret;
1916 
1917         sc->reset = 0;
1918         uea_leaves(INS_TO_USBDEV(sc));
1919         return ret;
1920 }
1921 
1922 /*
1923  * In case of an error wait 1s before rebooting the modem
1924  * if the modem don't request reboot (-EAGAIN).
1925  * Monitor the modem every 1s.
1926  */
1927 
1928 static int uea_kthread(void *data)
1929 {
1930         struct uea_softc *sc = data;
1931         int ret = -EAGAIN;
1932 
1933         set_freezable();
1934         uea_enters(INS_TO_USBDEV(sc));
1935         while (!kthread_should_stop()) {
1936                 if (ret < 0 || sc->reset)
1937                         ret = uea_start_reset(sc);
1938                 if (!ret)
1939                         ret = sc->stat(sc);
1940                 if (ret != -EAGAIN)
1941                         uea_wait(sc, 0, msecs_to_jiffies(1000));
1942                 try_to_freeze();
1943         }
1944         uea_leaves(INS_TO_USBDEV(sc));
1945         return ret;
1946 }
1947 
1948 /* Load second usb firmware for ADI930 chip */
1949 static int load_XILINX_firmware(struct uea_softc *sc)
1950 {
1951         const struct firmware *fw_entry;
1952         int ret, size, u, ln;
1953         const u8 *pfw;
1954         u8 value;
1955         char *fw_name = FPGA930_FIRMWARE;
1956 
1957         uea_enters(INS_TO_USBDEV(sc));
1958 
1959         ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev);
1960         if (ret) {
1961                 uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n",
1962                        fw_name);
1963                 goto err0;
1964         }
1965 
1966         pfw = fw_entry->data;
1967         size = fw_entry->size;
1968         if (size != 0x577B) {
1969                 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1970                        fw_name);
1971                 ret = -EILSEQ;
1972                 goto err1;
1973         }
1974         for (u = 0; u < size; u += ln) {
1975                 ln = min(size - u, 64);
1976                 ret = uea_request(sc, 0xe, 0, ln, pfw + u);
1977                 if (ret < 0) {
1978                         uea_err(INS_TO_USBDEV(sc),
1979                                "elsa download data failed (%d)\n", ret);
1980                         goto err1;
1981                 }
1982         }
1983 
1984         /* finish to send the fpga */
1985         ret = uea_request(sc, 0xe, 1, 0, NULL);
1986         if (ret < 0) {
1987                 uea_err(INS_TO_USBDEV(sc),
1988                                 "elsa download data failed (%d)\n", ret);
1989                 goto err1;
1990         }
1991 
1992         /* Tell the modem we finish : de-assert reset */
1993         value = 0;
1994         ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
1995         if (ret < 0)
1996                 uea_err(sc->usb_dev, "elsa de-assert failed with error"
1997                                                                 " %d\n", ret);
1998 
1999 err1:
2000         release_firmware(fw_entry);
2001 err0:
2002         uea_leaves(INS_TO_USBDEV(sc));
2003         return ret;
2004 }
2005 
2006 /* The modem send us an ack. First with check if it right */
2007 static void uea_dispatch_cmv_e1(struct uea_softc *sc, struct intr_pkt *intr)
2008 {
2009         struct cmv_dsc_e1 *dsc = &sc->cmv_dsc.e1;
2010         struct cmv_e1 *cmv = &intr->u.e1.s2.cmv;
2011 
2012         uea_enters(INS_TO_USBDEV(sc));
2013         if (le16_to_cpu(cmv->wPreamble) != E1_PREAMBLE)
2014                 goto bad1;
2015 
2016         if (cmv->bDirection != E1_MODEMTOHOST)
2017                 goto bad1;
2018 
2019         /* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
2020          * the first MEMACCESS cmv. Ignore it...
2021          */
2022         if (cmv->bFunction != dsc->function) {
2023                 if (UEA_CHIP_VERSION(sc) == ADI930
2024                                 && cmv->bFunction ==  E1_MAKEFUNCTION(2, 2)) {
2025                         cmv->wIndex = cpu_to_le16(dsc->idx);
2026                         put_unaligned_le32(dsc->address,
2027                                                 &cmv->dwSymbolicAddress);
2028                         cmv->wOffsetAddress = cpu_to_le16(dsc->offset);
2029                 } else
2030                         goto bad2;
2031         }
2032 
2033         if (cmv->bFunction == E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
2034                                                         E1_MODEMREADY)) {
2035                 wake_up_cmv_ack(sc);
2036                 uea_leaves(INS_TO_USBDEV(sc));
2037                 return;
2038         }
2039 
2040         /* in case of MEMACCESS */
2041         if (le16_to_cpu(cmv->wIndex) != dsc->idx ||
2042             get_unaligned_le32(&cmv->dwSymbolicAddress) != dsc->address ||
2043             le16_to_cpu(cmv->wOffsetAddress) != dsc->offset)
2044                 goto bad2;
2045 
2046         sc->data = get_unaligned_le32(&cmv->dwData);
2047         sc->data = sc->data << 16 | sc->data >> 16;
2048 
2049         wake_up_cmv_ack(sc);
2050         uea_leaves(INS_TO_USBDEV(sc));
2051         return;
2052 
2053 bad2:
2054         uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
2055                         "Function : %d, Subfunction : %d\n",
2056                         E1_FUNCTION_TYPE(cmv->bFunction),
2057                         E1_FUNCTION_SUBTYPE(cmv->bFunction));
2058         uea_leaves(INS_TO_USBDEV(sc));
2059         return;
2060 
2061 bad1:
2062         uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
2063                         "wPreamble %d, bDirection %d\n",
2064                         le16_to_cpu(cmv->wPreamble), cmv->bDirection);
2065         uea_leaves(INS_TO_USBDEV(sc));
2066 }
2067 
2068 /* The modem send us an ack. First with check if it right */
2069 static void uea_dispatch_cmv_e4(struct uea_softc *sc, struct intr_pkt *intr)
2070 {
2071         struct cmv_dsc_e4 *dsc = &sc->cmv_dsc.e4;
2072         struct cmv_e4 *cmv = &intr->u.e4.s2.cmv;
2073 
2074         uea_enters(INS_TO_USBDEV(sc));
2075         uea_dbg(INS_TO_USBDEV(sc), "cmv %x %x %x %x %x %x\n",
2076                 be16_to_cpu(cmv->wGroup), be16_to_cpu(cmv->wFunction),
2077                 be16_to_cpu(cmv->wOffset), be16_to_cpu(cmv->wAddress),
2078                 be32_to_cpu(cmv->dwData[0]), be32_to_cpu(cmv->dwData[1]));
2079 
2080         if (be16_to_cpu(cmv->wFunction) != dsc->function)
2081                 goto bad2;
2082 
2083         if (be16_to_cpu(cmv->wFunction) == E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
2084                                                 E4_MODEMREADY, 1)) {
2085                 wake_up_cmv_ack(sc);
2086                 uea_leaves(INS_TO_USBDEV(sc));
2087                 return;
2088         }
2089 
2090         /* in case of MEMACCESS */
2091         if (be16_to_cpu(cmv->wOffset) != dsc->offset ||
2092             be16_to_cpu(cmv->wGroup) != dsc->group ||
2093             be16_to_cpu(cmv->wAddress) != dsc->address)
2094                 goto bad2;
2095 
2096         sc->data = be32_to_cpu(cmv->dwData[0]);
2097         sc->data1 = be32_to_cpu(cmv->dwData[1]);
2098         wake_up_cmv_ack(sc);
2099         uea_leaves(INS_TO_USBDEV(sc));
2100         return;
2101 
2102 bad2:
2103         uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
2104                         "Function : %d, Subfunction : %d\n",
2105                         E4_FUNCTION_TYPE(cmv->wFunction),
2106                         E4_FUNCTION_SUBTYPE(cmv->wFunction));
2107         uea_leaves(INS_TO_USBDEV(sc));
2108         return;
2109 }
2110 
2111 static void uea_schedule_load_page_e1(struct uea_softc *sc,
2112                                                 struct intr_pkt *intr)
2113 {
2114         sc->pageno = intr->e1_bSwapPageNo;
2115         sc->ovl = intr->e1_bOvl >> 4 | intr->e1_bOvl << 4;
2116         schedule_work(&sc->task);
2117 }
2118 
2119 static void uea_schedule_load_page_e4(struct uea_softc *sc,
2120                                                 struct intr_pkt *intr)
2121 {
2122         sc->pageno = intr->e4_bSwapPageNo;
2123         schedule_work(&sc->task);
2124 }
2125 
2126 /*
2127  * interrupt handler
2128  */
2129 static void uea_intr(struct urb *urb)
2130 {
2131         struct uea_softc *sc = urb->context;
2132         struct intr_pkt *intr = urb->transfer_buffer;
2133         int status = urb->status;
2134 
2135         uea_enters(INS_TO_USBDEV(sc));
2136 
2137         if (unlikely(status < 0)) {
2138                 uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n",
2139                        status);
2140                 return;
2141         }
2142 
2143         /* device-to-host interrupt */
2144         if (intr->bType != 0x08 || sc->booting) {
2145                 uea_err(INS_TO_USBDEV(sc), "wrong interrupt\n");
2146                 goto resubmit;
2147         }
2148 
2149         switch (le16_to_cpu(intr->wInterrupt)) {
2150         case INT_LOADSWAPPAGE:
2151                 sc->schedule_load_page(sc, intr);
2152                 break;
2153 
2154         case INT_INCOMINGCMV:
2155                 sc->dispatch_cmv(sc, intr);
2156                 break;
2157 
2158         default:
2159                 uea_err(INS_TO_USBDEV(sc), "unknown interrupt %u\n",
2160                        le16_to_cpu(intr->wInterrupt));
2161         }
2162 
2163 resubmit:
2164         usb_submit_urb(sc->urb_int, GFP_ATOMIC);
2165 }
2166 
2167 /*
2168  * Start the modem : init the data and start kernel thread
2169  */
2170 static int uea_boot(struct uea_softc *sc)
2171 {
2172         int ret, size;
2173         struct intr_pkt *intr;
2174 
2175         uea_enters(INS_TO_USBDEV(sc));
2176 
2177         if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2178                 size = E4_INTR_PKT_SIZE;
2179                 sc->dispatch_cmv = uea_dispatch_cmv_e4;
2180                 sc->schedule_load_page = uea_schedule_load_page_e4;
2181                 sc->stat = uea_stat_e4;
2182                 sc->send_cmvs = uea_send_cmvs_e4;
2183                 INIT_WORK(&sc->task, uea_load_page_e4);
2184         } else {
2185                 size = E1_INTR_PKT_SIZE;
2186                 sc->dispatch_cmv = uea_dispatch_cmv_e1;
2187                 sc->schedule_load_page = uea_schedule_load_page_e1;
2188                 sc->stat = uea_stat_e1;
2189                 sc->send_cmvs = uea_send_cmvs_e1;
2190                 INIT_WORK(&sc->task, uea_load_page_e1);
2191         }
2192 
2193         init_waitqueue_head(&sc->sync_q);
2194 
2195         if (UEA_CHIP_VERSION(sc) == ADI930)
2196                 load_XILINX_firmware(sc);
2197 
2198         intr = kmalloc(size, GFP_KERNEL);
2199         if (!intr) {
2200                 uea_err(INS_TO_USBDEV(sc),
2201                        "cannot allocate interrupt package\n");
2202                 goto err0;
2203         }
2204 
2205         sc->urb_int = usb_alloc_urb(0, GFP_KERNEL);
2206         if (!sc->urb_int) {
2207                 uea_err(INS_TO_USBDEV(sc), "cannot allocate interrupt URB\n");
2208                 goto err1;
2209         }
2210 
2211         usb_fill_int_urb(sc->urb_int, sc->usb_dev,
2212                          usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
2213                          intr, size, uea_intr, sc,
2214                          sc->usb_dev->actconfig->interface[0]->altsetting[0].
2215                          endpoint[0].desc.bInterval);
2216 
2217         ret = usb_submit_urb(sc->urb_int, GFP_KERNEL);
2218         if (ret < 0) {
2219                 uea_err(INS_TO_USBDEV(sc),
2220                        "urb submition failed with error %d\n", ret);
2221                 goto err1;
2222         }
2223 
2224         /* Create worker thread, but don't start it here.  Start it after
2225          * all usbatm generic initialization is done.
2226          */
2227         sc->kthread = kthread_create(uea_kthread, sc, "ueagle-atm");
2228         if (IS_ERR(sc->kthread)) {
2229                 uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
2230                 goto err2;
2231         }
2232 
2233         uea_leaves(INS_TO_USBDEV(sc));
2234         return 0;
2235 
2236 err2:
2237         usb_kill_urb(sc->urb_int);
2238 err1:
2239         usb_free_urb(sc->urb_int);
2240         sc->urb_int = NULL;
2241         kfree(intr);
2242 err0:
2243         uea_leaves(INS_TO_USBDEV(sc));
2244         return -ENOMEM;
2245 }
2246 
2247 /*
2248  * Stop the modem : kill kernel thread and free data
2249  */
2250 static void uea_stop(struct uea_softc *sc)
2251 {
2252         int ret;
2253         uea_enters(INS_TO_USBDEV(sc));
2254         ret = kthread_stop(sc->kthread);
2255         uea_dbg(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret);
2256 
2257         uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
2258 
2259         usb_kill_urb(sc->urb_int);
2260         kfree(sc->urb_int->transfer_buffer);
2261         usb_free_urb(sc->urb_int);
2262 
2263         /* flush the work item, when no one can schedule it */
2264         flush_work(&sc->task);
2265 
2266         release_firmware(sc->dsp_firm);
2267         uea_leaves(INS_TO_USBDEV(sc));
2268 }
2269 
2270 /* syfs interface */
2271 static struct uea_softc *dev_to_uea(struct device *dev)
2272 {
2273         struct usb_interface *intf;
2274         struct usbatm_data *usbatm;
2275 
2276         intf = to_usb_interface(dev);
2277         if (!intf)
2278                 return NULL;
2279 
2280         usbatm = usb_get_intfdata(intf);
2281         if (!usbatm)
2282                 return NULL;
2283 
2284         return usbatm->driver_data;
2285 }
2286 
2287 static ssize_t read_status(struct device *dev, struct device_attribute *attr,
2288                 char *buf)
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         ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.state);
2298 out:
2299         mutex_unlock(&uea_mutex);
2300         return ret;
2301 }
2302 
2303 static ssize_t reboot(struct device *dev, struct device_attribute *attr,
2304                 const char *buf, size_t count)
2305 {
2306         int ret = -ENODEV;
2307         struct uea_softc *sc;
2308 
2309         mutex_lock(&uea_mutex);
2310         sc = dev_to_uea(dev);
2311         if (!sc)
2312                 goto out;
2313         sc->reset = 1;
2314         ret = count;
2315 out:
2316         mutex_unlock(&uea_mutex);
2317         return ret;
2318 }
2319 
2320 static DEVICE_ATTR(stat_status, S_IWUSR | S_IRUGO, read_status, reboot);
2321 
2322 static ssize_t read_human_status(struct device *dev,
2323                         struct device_attribute *attr, char *buf)
2324 {
2325         int ret = -ENODEV;
2326         int modem_state;
2327         struct uea_softc *sc;
2328 
2329         mutex_lock(&uea_mutex);
2330         sc = dev_to_uea(dev);
2331         if (!sc)
2332                 goto out;
2333 
2334         if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2335                 switch (sc->stats.phy.state) {
2336                 case 0x0:       /* not yet synchronized */
2337                 case 0x1:
2338                 case 0x3:
2339                 case 0x4:
2340                         modem_state = 0;
2341                         break;
2342                 case 0x5:       /* initialization */
2343                 case 0x6:
2344                 case 0x9:
2345                 case 0xa:
2346                         modem_state = 1;
2347                         break;
2348                 case 0x7:       /* operational */
2349                         modem_state = 2;
2350                         break;
2351                 case 0x2:       /* fail ... */
2352                         modem_state = 3;
2353                         break;
2354                 default:        /* unknown */
2355                         modem_state = 4;
2356                         break;
2357                 }
2358         } else
2359                 modem_state = GET_STATUS(sc->stats.phy.state);
2360 
2361         switch (modem_state) {
2362         case 0:
2363                 ret = sprintf(buf, "Modem is booting\n");
2364                 break;
2365         case 1:
2366                 ret = sprintf(buf, "Modem is initializing\n");
2367                 break;
2368         case 2:
2369                 ret = sprintf(buf, "Modem is operational\n");
2370                 break;
2371         case 3:
2372                 ret = sprintf(buf, "Modem synchronization failed\n");
2373                 break;
2374         default:
2375                 ret = sprintf(buf, "Modem state is unknown\n");
2376                 break;
2377         }
2378 out:
2379         mutex_unlock(&uea_mutex);
2380         return ret;
2381 }
2382 
2383 static DEVICE_ATTR(stat_human_status, S_IRUGO, read_human_status, NULL);
2384 
2385 static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
2386                 char *buf)
2387 {
2388         int ret = -ENODEV;
2389         struct uea_softc *sc;
2390         char *delin = "GOOD";
2391 
2392         mutex_lock(&uea_mutex);
2393         sc = dev_to_uea(dev);
2394         if (!sc)
2395                 goto out;
2396 
2397         if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2398                 if (sc->stats.phy.flags & 0x4000)
2399                         delin = "RESET";
2400                 else if (sc->stats.phy.flags & 0x0001)
2401                         delin = "LOSS";
2402         } else {
2403                 if (sc->stats.phy.flags & 0x0C00)
2404                         delin = "ERROR";
2405                 else if (sc->stats.phy.flags & 0x0030)
2406                         delin = "LOSS";
2407         }
2408 
2409         ret = sprintf(buf, "%s\n", delin);
2410 out:
2411         mutex_unlock(&uea_mutex);
2412         return ret;
2413 }
2414 
2415 static DEVICE_ATTR(stat_delin, S_IRUGO, read_delin, NULL);
2416 
2417 #define UEA_ATTR(name, reset)                                   \
2418                                                                 \
2419 static ssize_t read_##name(struct device *dev,                  \
2420                 struct device_attribute *attr, char *buf)       \
2421 {                                                               \
2422         int ret = -ENODEV;                                      \
2423         struct uea_softc *sc;                                   \
2424                                                                 \
2425         mutex_lock(&uea_mutex);                                 \
2426         sc = dev_to_uea(dev);                                   \
2427         if (!sc)                                                \
2428                 goto out;                                       \
2429         ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name);  \
2430         if (reset)                                              \
2431                 sc->stats.phy.name = 0;                         \
2432 out:                                                            \
2433         mutex_unlock(&uea_mutex);                               \
2434         return ret;                                             \
2435 }                                                               \
2436                                                                 \
2437 static DEVICE_ATTR(stat_##name, S_IRUGO, read_##name, NULL)
2438 
2439 UEA_ATTR(mflags, 1);
2440 UEA_ATTR(vidcpe, 0);
2441 UEA_ATTR(usrate, 0);
2442 UEA_ATTR(dsrate, 0);
2443 UEA_ATTR(usattenuation, 0);
2444 UEA_ATTR(dsattenuation, 0);
2445 UEA_ATTR(usmargin, 0);
2446 UEA_ATTR(dsmargin, 0);
2447 UEA_ATTR(txflow, 0);
2448 UEA_ATTR(rxflow, 0);
2449 UEA_ATTR(uscorr, 0);
2450 UEA_ATTR(dscorr, 0);
2451 UEA_ATTR(usunc, 0);
2452 UEA_ATTR(dsunc, 0);
2453 UEA_ATTR(firmid, 0);
2454 
2455 /* Retrieve the device End System Identifier (MAC) */
2456 
2457 static int uea_getesi(struct uea_softc *sc, u_char * esi)
2458 {
2459         unsigned char mac_str[2 * ETH_ALEN + 1];
2460         int i;
2461         if (usb_string
2462             (sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str,
2463              sizeof(mac_str)) != 2 * ETH_ALEN)
2464                 return 1;
2465 
2466         for (i = 0; i < ETH_ALEN; i++)
2467                 esi[i] = hex_to_bin(mac_str[2 * i]) * 16 +
2468                          hex_to_bin(mac_str[2 * i + 1]);
2469 
2470         return 0;
2471 }
2472 
2473 /* ATM stuff */
2474 static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
2475 {
2476         struct uea_softc *sc = usbatm->driver_data;
2477 
2478         return uea_getesi(sc, atm_dev->esi);
2479 }
2480 
2481 static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
2482 {
2483         struct uea_softc *sc = usbatm->driver_data;
2484 
2485         wait_event_interruptible(sc->sync_q, IS_OPERATIONAL(sc));
2486 
2487         return 0;
2488 
2489 }
2490 
2491 static int claim_interface(struct usb_device *usb_dev,
2492                            struct usbatm_data *usbatm, int ifnum)
2493 {
2494         int ret;
2495         struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum);
2496 
2497         if (!intf) {
2498                 uea_err(usb_dev, "interface %d not found\n", ifnum);
2499                 return -ENODEV;
2500         }
2501 
2502         ret = usb_driver_claim_interface(&uea_driver, intf, usbatm);
2503         if (ret != 0)
2504                 uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum,
2505                        ret);
2506         return ret;
2507 }
2508 
2509 static struct attribute *attrs[] = {
2510         &dev_attr_stat_status.attr,
2511         &dev_attr_stat_mflags.attr,
2512         &dev_attr_stat_human_status.attr,
2513         &dev_attr_stat_delin.attr,
2514         &dev_attr_stat_vidcpe.attr,
2515         &dev_attr_stat_usrate.attr,
2516         &dev_attr_stat_dsrate.attr,
2517         &dev_attr_stat_usattenuation.attr,
2518         &dev_attr_stat_dsattenuation.attr,
2519         &dev_attr_stat_usmargin.attr,
2520         &dev_attr_stat_dsmargin.attr,
2521         &dev_attr_stat_txflow.attr,
2522         &dev_attr_stat_rxflow.attr,
2523         &dev_attr_stat_uscorr.attr,
2524         &dev_attr_stat_dscorr.attr,
2525         &dev_attr_stat_usunc.attr,
2526         &dev_attr_stat_dsunc.attr,
2527         &dev_attr_stat_firmid.attr,
2528         NULL,
2529 };
2530 static struct attribute_group attr_grp = {
2531         .attrs = attrs,
2532 };
2533 
2534 static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
2535                    const struct usb_device_id *id)
2536 {
2537         struct usb_device *usb = interface_to_usbdev(intf);
2538         struct uea_softc *sc;
2539         int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
2540         unsigned int alt;
2541 
2542         uea_enters(usb);
2543 
2544         /* interface 0 is for firmware/monitoring */
2545         if (ifnum != UEA_INTR_IFACE_NO)
2546                 return -ENODEV;
2547 
2548         usbatm->flags = (sync_wait[modem_index] ? 0 : UDSL_SKIP_HEAVY_INIT);
2549 
2550         /* interface 1 is for outbound traffic */
2551         ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO);
2552         if (ret < 0)
2553                 return ret;
2554 
2555         /* ADI930 has only 2 interfaces and inbound traffic is on interface 1 */
2556         if (UEA_CHIP_VERSION(id) != ADI930) {
2557                 /* interface 2 is for inbound traffic */
2558                 ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO);
2559                 if (ret < 0)
2560                         return ret;
2561         }
2562 
2563         sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
2564         if (!sc) {
2565                 uea_err(usb, "uea_init: not enough memory !\n");
2566                 return -ENOMEM;
2567         }
2568 
2569         sc->usb_dev = usb;
2570         usbatm->driver_data = sc;
2571         sc->usbatm = usbatm;
2572         sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0;
2573         sc->driver_info = id->driver_info;
2574 
2575         /* first try to use module parameter */
2576         if (annex[sc->modem_index] == 1)
2577                 sc->annex = ANNEXA;
2578         else if (annex[sc->modem_index] == 2)
2579                 sc->annex = ANNEXB;
2580         /* try to autodetect annex */
2581         else if (sc->driver_info & AUTO_ANNEX_A)
2582                 sc->annex = ANNEXA;
2583         else if (sc->driver_info & AUTO_ANNEX_B)
2584                 sc->annex = ANNEXB;
2585         else
2586                 sc->annex = (le16_to_cpu
2587                 (sc->usb_dev->descriptor.bcdDevice) & 0x80) ? ANNEXB : ANNEXA;
2588 
2589         alt = altsetting[sc->modem_index];
2590         /* ADI930 don't support iso */
2591         if (UEA_CHIP_VERSION(id) != ADI930 && alt > 0) {
2592                 if (alt <= 8 &&
2593                         usb_set_interface(usb, UEA_DS_IFACE_NO, alt) == 0) {
2594                         uea_dbg(usb, "set alternate %u for 2 interface\n", alt);
2595                         uea_info(usb, "using iso mode\n");
2596                         usbatm->flags |= UDSL_USE_ISOC | UDSL_IGNORE_EILSEQ;
2597                 } else {
2598                         uea_err(usb, "setting alternate %u failed for "
2599                                         "2 interface, using bulk mode\n", alt);
2600                 }
2601         }
2602 
2603         ret = sysfs_create_group(&intf->dev.kobj, &attr_grp);
2604         if (ret < 0)
2605                 goto error;
2606 
2607         ret = uea_boot(sc);
2608         if (ret < 0)
2609                 goto error_rm_grp;
2610 
2611         return 0;
2612 
2613 error_rm_grp:
2614         sysfs_remove_group(&intf->dev.kobj, &attr_grp);
2615 error:
2616         kfree(sc);
2617         return ret;
2618 }
2619 
2620 static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
2621 {
2622         struct uea_softc *sc = usbatm->driver_data;
2623 
2624         sysfs_remove_group(&intf->dev.kobj, &attr_grp);
2625         uea_stop(sc);
2626         kfree(sc);
2627 }
2628 
2629 static struct usbatm_driver uea_usbatm_driver = {
2630         .driver_name = "ueagle-atm",
2631         .bind = uea_bind,
2632         .atm_start = uea_atm_open,
2633         .unbind = uea_unbind,
2634         .heavy_init = uea_heavy,
2635         .bulk_in = UEA_BULK_DATA_PIPE,
2636         .bulk_out = UEA_BULK_DATA_PIPE,
2637         .isoc_in = UEA_ISO_DATA_PIPE,
2638 };
2639 
2640 static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
2641 {
2642         struct usb_device *usb = interface_to_usbdev(intf);
2643         int ret;
2644 
2645         uea_enters(usb);
2646         uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) Rev (%#X): %s\n",
2647                 le16_to_cpu(usb->descriptor.idVendor),
2648                 le16_to_cpu(usb->descriptor.idProduct),
2649                 le16_to_cpu(usb->descriptor.bcdDevice),
2650                 chip_name[UEA_CHIP_VERSION(id)]);
2651 
2652         usb_reset_device(usb);
2653 
2654         if (UEA_IS_PREFIRM(id))
2655                 return uea_load_firmware(usb, UEA_CHIP_VERSION(id));
2656 
2657         ret = usbatm_usb_probe(intf, id, &uea_usbatm_driver);
2658         if (ret == 0) {
2659                 struct usbatm_data *usbatm = usb_get_intfdata(intf);
2660                 struct uea_softc *sc = usbatm->driver_data;
2661 
2662                 /* Ensure carrier is initialized to off as early as possible */
2663                 UPDATE_ATM_SIGNAL(ATM_PHY_SIG_LOST);
2664 
2665                 /* Only start the worker thread when all init is done */
2666                 wake_up_process(sc->kthread);
2667         }
2668 
2669         return ret;
2670 }
2671 
2672 static void uea_disconnect(struct usb_interface *intf)
2673 {
2674         struct usb_device *usb = interface_to_usbdev(intf);
2675         int ifnum = intf->altsetting->desc.bInterfaceNumber;
2676         uea_enters(usb);
2677 
2678         /* ADI930 has 2 interfaces and eagle 3 interfaces.
2679          * Pre-firmware device has one interface
2680          */
2681         if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) {
2682                 mutex_lock(&uea_mutex);
2683                 usbatm_usb_disconnect(intf);
2684                 mutex_unlock(&uea_mutex);
2685                 uea_info(usb, "ADSL device removed\n");
2686         }
2687 
2688         uea_leaves(usb);
2689 }
2690 
2691 /*
2692  * List of supported VID/PID
2693  */
2694 static const struct usb_device_id uea_ids[] = {
2695         {USB_DEVICE(ANALOG_VID, ADI930_PID_PREFIRM),
2696                 .driver_info = ADI930 | PREFIRM},
2697         {USB_DEVICE(ANALOG_VID, ADI930_PID_PSTFIRM),
2698                 .driver_info = ADI930 | PSTFIRM},
2699         {USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PREFIRM),
2700                 .driver_info = EAGLE_I | PREFIRM},
2701         {USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PSTFIRM),
2702                 .driver_info = EAGLE_I | PSTFIRM},
2703         {USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PREFIRM),
2704                 .driver_info = EAGLE_II | PREFIRM},
2705         {USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PSTFIRM),
2706                 .driver_info = EAGLE_II | PSTFIRM},
2707         {USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PREFIRM),
2708                 .driver_info = EAGLE_II | PREFIRM},
2709         {USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PSTFIRM),
2710                 .driver_info = EAGLE_II | PSTFIRM},
2711         {USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PREFIRM),
2712                 .driver_info = EAGLE_III | PREFIRM},
2713         {USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PSTFIRM),
2714                 .driver_info = EAGLE_III | PSTFIRM},
2715         {USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PREFIRM),
2716                 .driver_info = EAGLE_IV | PREFIRM},
2717         {USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PSTFIRM),
2718                 .driver_info = EAGLE_IV | PSTFIRM},
2719         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PREFIRM),
2720                 .driver_info = EAGLE_I | PREFIRM},
2721         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PSTFIRM),
2722                 .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
2723         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PREFIRM),
2724                 .driver_info = EAGLE_I | PREFIRM},
2725         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PSTFIRM),
2726                 .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
2727         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PREFIRM),
2728                 .driver_info = EAGLE_II | PREFIRM},
2729         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PSTFIRM),
2730                 .driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_A},
2731         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PREFIRM),
2732                 .driver_info = EAGLE_II | PREFIRM},
2733         {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PSTFIRM),
2734                 .driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_B},
2735         {USB_DEVICE(ELSA_VID,   ELSA_PID_PREFIRM),
2736                 .driver_info = ADI930 | PREFIRM},
2737         {USB_DEVICE(ELSA_VID,   ELSA_PID_PSTFIRM),
2738                 .driver_info = ADI930 | PSTFIRM},
2739         {USB_DEVICE(ELSA_VID,   ELSA_PID_A_PREFIRM),
2740                 .driver_info = ADI930 | PREFIRM},
2741         {USB_DEVICE(ELSA_VID,   ELSA_PID_A_PSTFIRM),
2742                 .driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_A},
2743         {USB_DEVICE(ELSA_VID,   ELSA_PID_B_PREFIRM),
2744                 .driver_info = ADI930 | PREFIRM},
2745         {USB_DEVICE(ELSA_VID,   ELSA_PID_B_PSTFIRM),
2746                 .driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_B},
2747         {USB_DEVICE(USR_VID,    MILLER_A_PID_PREFIRM),
2748                 .driver_info = EAGLE_I | PREFIRM},
2749         {USB_DEVICE(USR_VID,    MILLER_A_PID_PSTFIRM),
2750                 .driver_info = EAGLE_I | PSTFIRM  | AUTO_ANNEX_A},
2751         {USB_DEVICE(USR_VID,    MILLER_B_PID_PREFIRM),
2752                 .driver_info = EAGLE_I | PREFIRM},
2753         {USB_DEVICE(USR_VID,    MILLER_B_PID_PSTFIRM),
2754                 .driver_info = EAGLE_I | PSTFIRM  | AUTO_ANNEX_B},
2755         {USB_DEVICE(USR_VID,    HEINEKEN_A_PID_PREFIRM),
2756                 .driver_info = EAGLE_I | PREFIRM},
2757         {USB_DEVICE(USR_VID,    HEINEKEN_A_PID_PSTFIRM),
2758                 .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
2759         {USB_DEVICE(USR_VID,    HEINEKEN_B_PID_PREFIRM),
2760                 .driver_info = EAGLE_I | PREFIRM},
2761         {USB_DEVICE(USR_VID,    HEINEKEN_B_PID_PSTFIRM),
2762                 .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
2763         {}
2764 };
2765 
2766 /*
2767  * USB driver descriptor
2768  */
2769 static struct usb_driver uea_driver = {
2770         .name = "ueagle-atm",
2771         .id_table = uea_ids,
2772         .probe = uea_probe,
2773         .disconnect = uea_disconnect,
2774 };
2775 
2776 MODULE_DEVICE_TABLE(usb, uea_ids);
2777 
2778 module_usb_driver(uea_driver);
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");
2783 MODULE_FIRMWARE(EAGLE_FIRMWARE);
2784 MODULE_FIRMWARE(ADI930_FIRMWARE);
2785 MODULE_FIRMWARE(EAGLE_I_FIRMWARE);
2786 MODULE_FIRMWARE(EAGLE_II_FIRMWARE);
2787 MODULE_FIRMWARE(EAGLE_III_FIRMWARE);
2788 MODULE_FIRMWARE(EAGLE_IV_FIRMWARE);
2789 MODULE_FIRMWARE(DSP4I_FIRMWARE);
2790 MODULE_FIRMWARE(DSP4P_FIRMWARE);
2791 MODULE_FIRMWARE(DSP9I_FIRMWARE);
2792 MODULE_FIRMWARE(DSP9P_FIRMWARE);
2793 MODULE_FIRMWARE(DSPEI_FIRMWARE);
2794 MODULE_FIRMWARE(DSPEP_FIRMWARE);
2795 MODULE_FIRMWARE(FPGA930_FIRMWARE);
2796 MODULE_FIRMWARE(CMV4P_FIRMWARE);
2797 MODULE_FIRMWARE(CMV4PV2_FIRMWARE);
2798 MODULE_FIRMWARE(CMV4I_FIRMWARE);
2799 MODULE_FIRMWARE(CMV4IV2_FIRMWARE);
2800 MODULE_FIRMWARE(CMV9P_FIRMWARE);
2801 MODULE_FIRMWARE(CMV9PV2_FIRMWARE);
2802 MODULE_FIRMWARE(CMV9I_FIRMWARE);
2803 MODULE_FIRMWARE(CMV9IV2_FIRMWARE);
2804 MODULE_FIRMWARE(CMVEP_FIRMWARE);
2805 MODULE_FIRMWARE(CMVEPV2_FIRMWARE);
2806 MODULE_FIRMWARE(CMVEI_FIRMWARE);
2807 MODULE_FIRMWARE(CMVEIV2_FIRMWARE);
2808 

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