summaryrefslogtreecommitdiff
path: root/drivers/usb/atm/ueagle-atm.c
blob: 00f171a7a8a01f91f5d58ebc4d1e51851e3e5b55 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
/*-
 * Copyright (c) 2003, 2004
 *	Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
 *
 * Copyright (c) 2005-2007 Matthieu Castet <castet.matthieu@free.fr>
 * Copyright (c) 2005-2007 Stanislaw Gruszka <stf_xl@wp.pl>
 *
 * This software is available to you under a choice of one of two
 * licenses. You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * BSD license below:
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * GPL license :
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 *
 * HISTORY : some part of the code was base on ueagle 1.3 BSD driver,
 * Damien Bergamini agree to put his code under a DUAL GPL/BSD license.
 *
 * The rest of the code was was rewritten from scratch.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/crc32.h>
#include <linux/usb.h>
#include <linux/firmware.h>
#include <linux/ctype.h>
#include <linux/sched.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/freezer.h>
#include <linux/slab.h>
#include <linux/kernel.h>

#include <asm/unaligned.h>

#include "usbatm.h"

#define EAGLEUSBVERSION "ueagle 1.4"


/*
 * Debug macros
 */
#define uea_dbg(usb_dev, format, args...)	\
	do { \
		if (debug >= 1) \
			dev_dbg(&(usb_dev)->dev, \
				"[ueagle-atm dbg] %s: " format, \
					__func__, ##args); \
	} while (0)

#define uea_vdbg(usb_dev, format, args...)	\
	do { \
		if (debug >= 2) \
			dev_dbg(&(usb_dev)->dev, \
				"[ueagle-atm vdbg]  " format, ##args); \
	} while (0)

#define uea_enters(usb_dev) \
	uea_vdbg(usb_dev, "entering %s\n" , __func__)

#define uea_leaves(usb_dev) \
	uea_vdbg(usb_dev, "leaving  %s\n" , __func__)

#define uea_err(usb_dev, format, args...) \
	dev_err(&(usb_dev)->dev , "[UEAGLE-ATM] " format , ##args)

#define uea_warn(usb_dev, format, args...) \
	dev_warn(&(usb_dev)->dev , "[Ueagle-atm] " format, ##args)

#define uea_info(usb_dev, format, args...) \
	dev_info(&(usb_dev)->dev , "[ueagle-atm] " format, ##args)

struct intr_pkt;

/* cmv's from firmware */
struct uea_cmvs_v1 {
	u32 address;
	u16 offset;
	u32 data;
} __packed;

struct uea_cmvs_v2 {
	u32 group;
	u32 address;
	u32 offset;
	u32 data;
} __packed;

/* information about currently processed cmv */
struct cmv_dsc_e1 {
	u8 function;
	u16 idx;
	u32 address;
	u16 offset;
};

struct cmv_dsc_e4 {
	u16 function;
	u16 offset;
	u16 address;
	u16 group;
};

union cmv_dsc {
	struct cmv_dsc_e1 e1;
	struct cmv_dsc_e4 e4;
};

struct uea_softc {
	struct usb_device *usb_dev;
	struct usbatm_data *usbatm;

	int modem_index;
	unsigned int driver_info;
	int annex;
#define ANNEXA 0
#define ANNEXB 1

	int booting;
	int reset;

	wait_queue_head_t sync_q;

	struct task_struct *kthread;
	u32 data;
	u32 data1;

	int cmv_ack;
	union cmv_dsc cmv_dsc;

	struct work_struct task;
	u16 pageno;
	u16 ovl;

	const struct firmware *dsp_firm;
	struct urb *urb_int;

	void (*dispatch_cmv) (struct uea_softc *, struct intr_pkt *);
	void (*schedule_load_page) (struct uea_softc *, struct intr_pkt *);
	int (*stat) (struct uea_softc *);
	int (*send_cmvs) (struct uea_softc *);

	/* keep in sync with eaglectl */
	struct uea_stats {
		struct {
			u32 state;
			u32 flags;
			u32 mflags;
			u32 vidcpe;
			u32 vidco;
			u32 dsrate;
			u32 usrate;
			u32 dsunc;
			u32 usunc;
			u32 dscorr;
			u32 uscorr;
			u32 txflow;
			u32 rxflow;
			u32 usattenuation;
			u32 dsattenuation;
			u32 dsmargin;
			u32 usmargin;
			u32 firmid;
		} phy;
	} stats;
};

/*
 * Elsa IDs
 */
#define ELSA_VID		0x05CC
#define ELSA_PID_PSTFIRM	0x3350
#define ELSA_PID_PREFIRM	0x3351

#define ELSA_PID_A_PREFIRM	0x3352
#define ELSA_PID_A_PSTFIRM	0x3353
#define ELSA_PID_B_PREFIRM	0x3362
#define ELSA_PID_B_PSTFIRM	0x3363

/*
 * Devolo IDs : pots if (pid & 0x10)
 */
#define DEVOLO_VID			0x1039
#define DEVOLO_EAGLE_I_A_PID_PSTFIRM	0x2110
#define DEVOLO_EAGLE_I_A_PID_PREFIRM	0x2111

#define DEVOLO_EAGLE_I_B_PID_PSTFIRM	0x2100
#define DEVOLO_EAGLE_I_B_PID_PREFIRM	0x2101

#define DEVOLO_EAGLE_II_A_PID_PSTFIRM	0x2130
#define DEVOLO_EAGLE_II_A_PID_PREFIRM	0x2131

#define DEVOLO_EAGLE_II_B_PID_PSTFIRM	0x2120
#define DEVOLO_EAGLE_II_B_PID_PREFIRM	0x2121

/*
 * Reference design USB IDs
 */
#define ANALOG_VID		0x1110
#define ADI930_PID_PREFIRM	0x9001
#define ADI930_PID_PSTFIRM	0x9000

#define EAGLE_I_PID_PREFIRM	0x9010	/* Eagle I */
#define EAGLE_I_PID_PSTFIRM	0x900F	/* Eagle I */

#define EAGLE_IIC_PID_PREFIRM	0x9024	/* Eagle IIC */
#define EAGLE_IIC_PID_PSTFIRM	0x9023	/* Eagle IIC */

#define EAGLE_II_PID_PREFIRM	0x9022	/* Eagle II */
#define EAGLE_II_PID_PSTFIRM	0x9021	/* Eagle II */

#define EAGLE_III_PID_PREFIRM	0x9032	/* Eagle III */
#define EAGLE_III_PID_PSTFIRM	0x9031	/* Eagle III */

#define EAGLE_IV_PID_PREFIRM	0x9042  /* Eagle IV */
#define EAGLE_IV_PID_PSTFIRM	0x9041  /* Eagle IV */

/*
 * USR USB IDs
 */
#define USR_VID			0x0BAF
#define MILLER_A_PID_PREFIRM	0x00F2
#define MILLER_A_PID_PSTFIRM	0x00F1
#define MILLER_B_PID_PREFIRM	0x00FA
#define MILLER_B_PID_PSTFIRM	0x00F9
#define HEINEKEN_A_PID_PREFIRM	0x00F6
#define HEINEKEN_A_PID_PSTFIRM	0x00F5
#define HEINEKEN_B_PID_PREFIRM	0x00F8
#define HEINEKEN_B_PID_PSTFIRM	0x00F7

#define PREFIRM 0
#define PSTFIRM (1<<7)
#define AUTO_ANNEX_A (1<<8)
#define AUTO_ANNEX_B (1<<9)

enum {
	ADI930 = 0,
	EAGLE_I,
	EAGLE_II,
	EAGLE_III,
	EAGLE_IV
};

/* macros for both struct usb_device_id and struct uea_softc */
#define UEA_IS_PREFIRM(x) \
	(!((x)->driver_info & PSTFIRM))
#define UEA_CHIP_VERSION(x) \
	((x)->driver_info & 0xf)

#define IS_ISDN(x) \
	((x)->annex & ANNEXB)

#define INS_TO_USBDEV(ins) (ins->usb_dev)

#define GET_STATUS(data) \
	((data >> 8) & 0xf)

#define IS_OPERATIONAL(sc) \
	((UEA_CHIP_VERSION(sc) != EAGLE_IV) ? \
	(GET_STATUS(sc->stats.phy.state) == 2) : \
	(sc->stats.phy.state == 7))

/*
 * Set of macros to handle unaligned data in the firmware blob.
 * The FW_GET_BYTE() macro is provided only for consistency.
 */

#define FW_GET_BYTE(p) (*((__u8 *) (p)))

#define FW_DIR "ueagle-atm/"
#define UEA_FW_NAME_MAX 30
#define NB_MODEM 4

#define BULK_TIMEOUT 300
#define CTRL_TIMEOUT 1000

#define ACK_TIMEOUT msecs_to_jiffies(3000)

#define UEA_INTR_IFACE_NO	0
#define UEA_US_IFACE_NO		1
#define UEA_DS_IFACE_NO		2

#define FASTEST_ISO_INTF	8

#define UEA_BULK_DATA_PIPE	0x02
#define UEA_IDMA_PIPE		0x04
#define UEA_INTR_PIPE		0x04
#define UEA_ISO_DATA_PIPE	0x08

#define UEA_E1_SET_BLOCK	0x0001
#define UEA_E4_SET_BLOCK	0x002c
#define UEA_SET_MODE		0x0003
#define UEA_SET_2183_DATA	0x0004
#define UEA_SET_TIMEOUT		0x0011

#define UEA_LOOPBACK_OFF	0x0002
#define UEA_LOOPBACK_ON		0x0003
#define UEA_BOOT_IDMA		0x0006
#define UEA_START_RESET		0x0007
#define UEA_END_RESET		0x0008

#define UEA_SWAP_MAILBOX	(0x3fcd | 0x4000)
#define UEA_MPTX_START		(0x3fce | 0x4000)
#define UEA_MPTX_MAILBOX	(0x3fd6 | 0x4000)
#define UEA_MPRX_MAILBOX	(0x3fdf | 0x4000)

/* block information in eagle4 dsp firmware  */
struct block_index {
	__le32 PageOffset;
	__le32 NotLastBlock;
	__le32 dummy;
	__le32 PageSize;
	__le32 PageAddress;
	__le16 dummy1;
	__le16 PageNumber;
} __packed;

#define E4_IS_BOOT_PAGE(PageSize) ((le32_to_cpu(PageSize)) & 0x80000000)
#define E4_PAGE_BYTES(PageSize) ((le32_to_cpu(PageSize) & 0x7fffffff) * 4)

#define E4_L1_STRING_HEADER 0x10
#define E4_MAX_PAGE_NUMBER 0x58
#define E4_NO_SWAPPAGE_HEADERS 0x31

/* l1_code is eagle4 dsp firmware format */
struct l1_code {
	u8 string_header[E4_L1_STRING_HEADER];
	u8 page_number_to_block_index[E4_MAX_PAGE_NUMBER];
	struct block_index page_header[E4_NO_SWAPPAGE_HEADERS];
	u8 code[0];
} __packed;

/* structures describing a block within a DSP page */
struct block_info_e1 {
	__le16 wHdr;
	__le16 wAddress;
	__le16 wSize;
	__le16 wOvlOffset;
	__le16 wOvl;		/* overlay */
	__le16 wLast;
} __packed;
#define E1_BLOCK_INFO_SIZE 12

struct block_info_e4 {
	__be16 wHdr;
	__u8 bBootPage;
	__u8 bPageNumber;
	__be32 dwSize;
	__be32 dwAddress;
	__be16 wReserved;
} __packed;
#define E4_BLOCK_INFO_SIZE 14

#define UEA_BIHDR 0xabcd
#define UEA_RESERVED 0xffff

/* constants describing cmv type */
#define E1_PREAMBLE 0x535c
#define E1_MODEMTOHOST 0x01
#define E1_HOSTTOMODEM 0x10

#define E1_MEMACCESS 0x1
#define E1_ADSLDIRECTIVE 0x7
#define E1_FUNCTION_TYPE(f) ((f) >> 4)
#define E1_FUNCTION_SUBTYPE(f) ((f) & 0x0f)

#define E4_MEMACCESS 0
#define E4_ADSLDIRECTIVE 0xf
#define E4_FUNCTION_TYPE(f) ((f) >> 8)
#define E4_FUNCTION_SIZE(f) ((f) & 0x0f)
#define E4_FUNCTION_SUBTYPE(f) (((f) >> 4) & 0x0f)

/* for MEMACCESS */
#define E1_REQUESTREAD	0x0
#define E1_REQUESTWRITE	0x1
#define E1_REPLYREAD	0x2
#define E1_REPLYWRITE	0x3

#define E4_REQUESTREAD	0x0
#define E4_REQUESTWRITE	0x4
#define E4_REPLYREAD	(E4_REQUESTREAD | 1)
#define E4_REPLYWRITE	(E4_REQUESTWRITE | 1)

/* for ADSLDIRECTIVE */
#define E1_KERNELREADY 0x0
#define E1_MODEMREADY  0x1

#define E4_KERNELREADY 0x0
#define E4_MODEMREADY  0x1

#define E1_MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf))
#define E4_MAKEFUNCTION(t, st, s) (((t) & 0xf) << 8 | \
	((st) & 0xf) << 4 | ((s) & 0xf))

#define E1_MAKESA(a, b, c, d)						\
	(((c) & 0xff) << 24 |						\
	 ((d) & 0xff) << 16 |						\
	 ((a) & 0xff) << 8  |						\
	 ((b) & 0xff))

#define E1_GETSA1(a) ((a >> 8) & 0xff)
#define E1_GETSA2(a) (a & 0xff)
#define E1_GETSA3(a) ((a >> 24) & 0xff)
#define E1_GETSA4(a) ((a >> 16) & 0xff)

#define E1_SA_CNTL E1_MAKESA('C', 'N', 'T', 'L')
#define E1_SA_DIAG E1_MAKESA('D', 'I', 'A', 'G')
#define E1_SA_INFO E1_MAKESA('I', 'N', 'F', 'O')
#define E1_SA_OPTN E1_MAKESA('O', 'P', 'T', 'N')
#define E1_SA_RATE E1_MAKESA('R', 'A', 'T', 'E')
#define E1_SA_STAT E1_MAKESA('S', 'T', 'A', 'T')

#define E4_SA_CNTL 1
#define E4_SA_STAT 2
#define E4_SA_INFO 3
#define E4_SA_TEST 4
#define E4_SA_OPTN 5
#define E4_SA_RATE 6
#define E4_SA_DIAG 7
#define E4_SA_CNFG 8

/* structures representing a CMV (Configuration and Management Variable) */
struct cmv_e1 {
	__le16 wPreamble;
	__u8 bDirection;
	__u8 bFunction;
	__le16 wIndex;
	__le32 dwSymbolicAddress;
	__le16 wOffsetAddress;
	__le32 dwData;
} __packed;

struct cmv_e4 {
	__be16 wGroup;
	__be16 wFunction;
	__be16 wOffset;
	__be16 wAddress;
	__be32 dwData[6];
} __packed;

/* structures representing swap information */
struct swap_info_e1 {
	__u8 bSwapPageNo;
	__u8 bOvl;		/* overlay */
} __packed;

struct swap_info_e4 {
	__u8 bSwapPageNo;
} __packed;

/* structures representing interrupt data */
#define e1_bSwapPageNo	u.e1.s1.swapinfo.bSwapPageNo
#define e1_bOvl		u.e1.s1.swapinfo.bOvl
#define e4_bSwapPageNo  u.e4.s1.swapinfo.bSwapPageNo

#define INT_LOADSWAPPAGE 0x0001
#define INT_INCOMINGCMV  0x0002

union intr_data_e1 {
	struct {
		struct swap_info_e1 swapinfo;
		__le16 wDataSize;
	} __packed s1;
	struct {
		struct cmv_e1 cmv;
		__le16 wDataSize;
	} __packed s2;
} __packed;

union intr_data_e4 {
	struct {
		struct swap_info_e4 swapinfo;
		__le16 wDataSize;
	} __packed s1;
	struct {
		struct cmv_e4 cmv;
		__le16 wDataSize;
	} __packed s2;
} __packed;

struct intr_pkt {
	__u8 bType;
	__u8 bNotification;
	__le16 wValue;
	__le16 wIndex;
	__le16 wLength;
	__le16 wInterrupt;
	union {
		union intr_data_e1 e1;
		union intr_data_e4 e4;
	} u;
} __packed;

#define E1_INTR_PKT_SIZE 28
#define E4_INTR_PKT_SIZE 64

static struct usb_driver uea_driver;
static DEFINE_MUTEX(uea_mutex);
static const char * const chip_name[] = {
	"ADI930", "Eagle I", "Eagle II", "Eagle III", "Eagle IV"};

static int modem_index;
static unsigned int debug;
static unsigned int altsetting[NB_MODEM] = {
				[0 ... (NB_MODEM - 1)] = FASTEST_ISO_INTF};
static int sync_wait[NB_MODEM];
static char *cmv_file[NB_MODEM];
static int annex[NB_MODEM];

module_param(debug, uint, 0644);
MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)");
module_param_array(altsetting, uint, NULL, 0644);
MODULE_PARM_DESC(altsetting, "alternate setting for incoming traffic: 0=bulk, "
			     "1=isoc slowest, ... , 8=isoc fastest (default)");
module_param_array(sync_wait, bool, NULL, 0644);
MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM");
module_param_array(cmv_file, charp, NULL, 0644);
MODULE_PARM_DESC(cmv_file,
		"file name with configuration and management variables");
module_param_array(annex, uint, NULL, 0644);
MODULE_PARM_DESC(annex,
		"manually set annex a/b (0=auto, 1=annex a, 2=annex b)");

#define uea_wait(sc, cond, timeo) \
({ \
	int _r = wait_event_interruptible_timeout(sc->sync_q, \
			(cond) || kthread_should_stop(), timeo); \
	if (kthread_should_stop()) \
		_r = -ENODEV; \
	_r; \
})

#define UPDATE_ATM_STAT(type, val) \
	do { \
		if (sc->usbatm->atm_dev) \
			sc->usbatm->atm_dev->type = val; \
	} while (0)

#define UPDATE_ATM_SIGNAL(val) \
	do { \
		if (sc->usbatm->atm_dev) \
			atm_dev_signal_change(sc->usbatm->atm_dev, val); \
	} while (0)


/* Firmware loading */
#define LOAD_INTERNAL     0xA0
#define F8051_USBCS       0x7f92

/**
 * uea_send_modem_cmd - Send a command for pre-firmware devices.
 */
static int uea_send_modem_cmd(struct usb_device *usb,
			      u16 addr, u16 size, const u8 *buff)
{
	int ret = -ENOMEM;
	u8 *xfer_buff;

	xfer_buff = kmemdup(buff, size, GFP_KERNEL);
	if (xfer_buff) {
		ret = usb_control_msg(usb,
				      usb_sndctrlpipe(usb, 0),
				      LOAD_INTERNAL,
				      USB_DIR_OUT | USB_TYPE_VENDOR |
				      USB_RECIP_DEVICE, addr, 0, xfer_buff,
				      size, CTRL_TIMEOUT);
		kfree(xfer_buff);
	}

	if (ret < 0)
		return ret;

	return (ret == size) ? 0 : -EIO;
}

static void uea_upload_pre_firmware(const struct firmware *fw_entry,
								void *context)
{
	struct usb_device *usb = context;
	const u8 *pfw;
	u8 value;
	u32 crc = 0;
	int ret, size;

	uea_enters(usb);
	if (!fw_entry) {
		uea_err(usb, "firmware is not available\n");
		goto err;
	}

	pfw = fw_entry->data;
	size = fw_entry->size;
	if (size < 4)
		goto err_fw_corrupted;

	crc = get_unaligned_le32(pfw);
	pfw += 4;
	size -= 4;
	if (crc32_be(0, pfw, size) != crc)
		goto err_fw_corrupted;

	/*
	 * Start to upload firmware : send reset
	 */
	value = 1;
	ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value);

	if (ret < 0) {
		uea_err(usb, "modem reset failed with error %d\n", ret);
		goto err;
	}

	while (size > 3) {
		u8 len = FW_GET_BYTE(pfw);
		u16 add = get_unaligned_le16(pfw + 1);

		size -= len + 3;
		if (size < 0)
			goto err_fw_corrupted;

		ret = uea_send_modem_cmd(usb, add, len, pfw + 3);
		if (ret < 0) {
			uea_err(usb, "uploading firmware data failed "
					"with error %d\n", ret);
			goto err;
		}
		pfw += len + 3;
	}

	if (size != 0)
		goto err_fw_corrupted;

	/*
	 * Tell the modem we finish : de-assert reset
	 */
	value = 0;
	ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value);
	if (ret < 0)
		uea_err(usb, "modem de-assert failed with error %d\n", ret);
	else
		uea_info(usb, "firmware uploaded\n");

	goto err;

err_fw_corrupted:
	uea_err(usb, "firmware is corrupted\n");
err:
	release_firmware(fw_entry);
	uea_leaves(usb);
}

/**
 * uea_load_firmware - Load usb firmware for pre-firmware devices.
 */
static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
{
	int ret;
	char *fw_name = FW_DIR "eagle.fw";

	uea_enters(usb);
	uea_info(usb, "pre-firmware device, uploading firmware\n");

	switch (ver) {
	case ADI930:
		fw_name = FW_DIR "adi930.fw";
		break;
	case EAGLE_I:
		fw_name = FW_DIR "eagleI.fw";
		break;
	case EAGLE_II:
		fw_name = FW_DIR "eagleII.fw";
		break;
	case EAGLE_III:
		fw_name = FW_DIR "eagleIII.fw";
		break;
	case EAGLE_IV:
		fw_name = FW_DIR "eagleIV.fw";
		break;
	}

	ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev,
					GFP_KERNEL, usb,
					uea_upload_pre_firmware);
	if (ret)
		uea_err(usb, "firmware %s is not available\n", fw_name);
	else
		uea_info(usb, "loading firmware %s\n", fw_name);

	uea_leaves(usb);
	return ret;
}

/* modem management : dsp firmware, send/read CMV, monitoring statistic
 */

/*
 * Make sure that the DSP code provided is safe to use.
 */
static int check_dsp_e1(const u8 *dsp, unsigned int len)
{
	u8 pagecount, blockcount;
	u16 blocksize;
	u32 pageoffset;
	unsigned int i, j, p, pp;

	pagecount = FW_GET_BYTE(dsp);
	p = 1;

	/* enough space for page offsets? */
	if (p + 4 * pagecount > len)
		return 1;

	for (i = 0; i < pagecount; i++) {

		pageoffset = get_unaligned_le32(dsp + p);
		p += 4;

		if (pageoffset == 0)
			continue;

		/* enough space for blockcount? */
		if (pageoffset >= len)
			return 1;

		pp = pageoffset;
		blockcount = FW_GET_BYTE(dsp + pp);
		pp += 1;

		for (j = 0; j < blockcount; j++) {

			/* enough space for block header? */
			if (pp + 4 > len)
				return 1;

			pp += 2;	/* skip blockaddr */
			blocksize = get_unaligned_le16(dsp + pp);
			pp += 2;

			/* enough space for block data? */
			if (pp + blocksize > len)
				return 1;

			pp += blocksize;
		}
	}

	return 0;
}

static int check_dsp_e4(const u8 *dsp, int len)
{
	int i;
	struct l1_code *p = (struct l1_code *) dsp;
	unsigned int sum = p->code - dsp;

	if (len < sum)
		return 1;

	if (strcmp("STRATIPHY ANEXA", p->string_header) != 0 &&
	    strcmp("STRATIPHY ANEXB", p->string_header) != 0)
		return 1;

	for (i = 0; i < E4_MAX_PAGE_NUMBER; i++) {
		struct block_index *blockidx;
		u8 blockno = p->page_number_to_block_index[i];
		if (blockno >= E4_NO_SWAPPAGE_HEADERS)
			continue;

		do {
			u64 l;

			if (blockno >= E4_NO_SWAPPAGE_HEADERS)
				return 1;

			blockidx = &p->page_header[blockno++];
			if ((u8 *)(blockidx + 1) - dsp  >= len)
				return 1;

			if (le16_to_cpu(blockidx->PageNumber) != i)
				return 1;

			l = E4_PAGE_BYTES(blockidx->PageSize);
			sum += l;
			l += le32_to_cpu(blockidx->PageOffset);
			if (l > len)
				return 1;

		/* zero is zero regardless endianes */
		} while (blockidx->NotLastBlock);
	}

	return (sum == len) ? 0 : 1;
}

/*
 * send data to the idma pipe
 * */
static int uea_idma_write(struct uea_softc *sc, const void *data, u32 size)
{
	int ret = -ENOMEM;
	u8 *xfer_buff;
	int bytes_read;

	xfer_buff = kmemdup(data, size, GFP_KERNEL);
	if (!xfer_buff) {
		uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
		return ret;
	}

	ret = usb_bulk_msg(sc->usb_dev,
			 usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
			 xfer_buff, size, &bytes_read, BULK_TIMEOUT);

	kfree(xfer_buff);
	if (ret < 0)
		return ret;
	if (size != bytes_read) {
		uea_err(INS_TO_USBDEV(sc), "size != bytes_read %d %d\n", size,
		       bytes_read);
		return -EIO;
	}

	return 0;
}

static int request_dsp(struct uea_softc *sc)
{
	int ret;
	char *dsp_name;

	if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
		if (IS_ISDN(sc))
			dsp_name = FW_DIR "DSP4i.bin";
		else
			dsp_name = FW_DIR "DSP4p.bin";
	} else if (UEA_CHIP_VERSION(sc) == ADI930) {
		if (IS_ISDN(sc))
			dsp_name = FW_DIR "DSP9i.bin";
		else
			dsp_name = FW_DIR "DSP9p.bin";
	} else {
		if (IS_ISDN(sc))
			dsp_name = FW_DIR "DSPei.bin";
		else
			dsp_name = FW_DIR "DSPep.bin";
	}

	ret = request_firmware(&sc->dsp_firm, dsp_name, &sc->usb_dev->dev);
	if (ret < 0) {
		uea_err(INS_TO_USBDEV(sc),
		       "requesting firmware %s failed with error %d\n",
			dsp_name, ret);
		return ret;
	}

	if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
		ret = check_dsp_e4(sc->dsp_firm->data, sc->dsp_firm->size);
	else
		ret = check_dsp_e1(sc->dsp_firm->data, sc->dsp_firm->size);

	if (ret) {
		uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
		       dsp_name);
		release_firmware(sc->dsp_firm);
		sc->dsp_firm = NULL;
		return -EILSEQ;
	}

	return 0;
}

/*
 * The uea_load_page() function must be called within a process context
 */
static void uea_load_page_e1(struct work_struct *work)
{
	struct uea_softc *sc = container_of(work, struct uea_softc, task);
	u16 pageno = sc->pageno;
	u16 ovl = sc->ovl;
	struct block_info_e1 bi;

	const u8 *p;
	u8 pagecount, blockcount;
	u16 blockaddr, blocksize;
	u32 pageoffset;
	int i;

	/* reload firmware when reboot start and it's loaded already */
	if (ovl == 0 && pageno == 0 && sc->dsp_firm) {
		release_firmware(sc->dsp_firm);
		sc->dsp_firm = NULL;
	}

	if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
		return;

	p = sc->dsp_firm->data;
	pagecount = FW_GET_BYTE(p);
	p += 1;

	if (pageno >= pagecount)
		goto bad1;

	p += 4 * pageno;
	pageoffset = get_unaligned_le32(p);

	if (pageoffset == 0)
		goto bad1;

	p = sc->dsp_firm->data + pageoffset;
	blockcount = FW_GET_BYTE(p);
	p += 1;

	uea_dbg(INS_TO_USBDEV(sc),
	       "sending %u blocks for DSP page %u\n", blockcount, pageno);

	bi.wHdr = cpu_to_le16(UEA_BIHDR);
	bi.wOvl = cpu_to_le16(ovl);
	bi.wOvlOffset = cpu_to_le16(ovl | 0x8000);

	for (i = 0; i < blockcount; i++) {
		blockaddr = get_unaligned_le16(p);
		p += 2;

		blocksize = get_unaligned_le16(p);
		p += 2;

		bi.wSize = cpu_to_le16(blocksize);
		bi.wAddress = cpu_to_le16(blockaddr);
		bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0);

		/* send block info through the IDMA pipe */
		if (uea_idma_write(sc, &bi, E1_BLOCK_INFO_SIZE))
			goto bad2;

		/* send block data through the IDMA pipe */
		if (uea_idma_write(sc, p, blocksize))
			goto bad2;

		p += blocksize;
	}

	return;

bad2:
	uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i);
	return;
bad1:
	uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n", pageno);
}

static void __uea_load_page_e4(struct uea_softc *sc, u8 pageno, int boot)
{
	struct block_info_e4 bi;
	struct block_index *blockidx;
	struct l1_code *p = (struct l1_code *) sc->dsp_firm->data;
	u8 blockno = p->page_number_to_block_index[pageno];

	bi.wHdr = cpu_to_be16(UEA_BIHDR);
	bi.bBootPage = boot;
	bi.bPageNumber = pageno;
	bi.wReserved = cpu_to_be16(UEA_RESERVED);

	do {
		const u8 *blockoffset;
		unsigned int blocksize;

		blockidx = &p->page_header[blockno];
		blocksize = E4_PAGE_BYTES(blockidx->PageSize);
		blockoffset = sc->dsp_firm->data + le32_to_cpu(
							blockidx->PageOffset);

		bi.dwSize = cpu_to_be32(blocksize);
		bi.dwAddress = cpu_to_be32(le32_to_cpu(blockidx->PageAddress));

		uea_dbg(INS_TO_USBDEV(sc),
			"sending block %u for DSP page "
			"%u size %u address %x\n",
			blockno, pageno, blocksize,
			le32_to_cpu(blockidx->PageAddress));

		/* send block info through the IDMA pipe */
		if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
			goto bad;

		/* send block data through the IDMA pipe */
		if (uea_idma_write(sc, blockoffset, blocksize))
			goto bad;

		blockno++;
	} while (blockidx->NotLastBlock);

	return;

bad:
	uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", blockno);
	return;
}

static void uea_load_page_e4(struct work_struct *work)
{
	struct uea_softc *sc = container_of(work, struct uea_softc, task);
	u8 pageno = sc->pageno;
	int i;
	struct block_info_e4 bi;
	struct l1_code *p;

	uea_dbg(INS_TO_USBDEV(sc), "sending DSP page %u\n", pageno);

	/* reload firmware when reboot start and it's loaded already */
	if (pageno == 0 && sc->dsp_firm) {
		release_firmware(sc->dsp_firm);
		sc->dsp_firm = NULL;
	}

	if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
		return;

	p = (struct l1_code *) sc->dsp_firm->data;
	if (pageno >= le16_to_cpu(p->page_header[0].PageNumber)) {
		uea_err(INS_TO_USBDEV(sc), "invalid DSP "
						"page %u requested\n", pageno);
		return;
	}

	if (pageno != 0) {
		__uea_load_page_e4(sc, pageno, 0);
		return;
	}

	uea_dbg(INS_TO_USBDEV(sc),
	       "sending Main DSP page %u\n", p->page_header[0].PageNumber);

	for (i = 0; i < le16_to_cpu(p->page_header[0].PageNumber); i++) {
		if (E4_IS_BOOT_PAGE(p->page_header[i].PageSize))
			__uea_load_page_e4(sc, i, 1);
	}

	uea_dbg(INS_TO_USBDEV(sc) , "sending start bi\n");

	bi.wHdr = cpu_to_be16(UEA_BIHDR);
	bi.bBootPage = 0;
	bi.bPageNumber = 0xff;
	bi.wReserved = cpu_to_be16(UEA_RESERVED);
	bi.dwSize = cpu_to_be32(E4_PAGE_BYTES(p->page_header[0].PageSize));
	bi.dwAddress = cpu_to_be32(le32_to_cpu(p->page_header[0].PageAddress));

	/* send block info through the IDMA pipe */
	if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
		uea_err(INS_TO_USBDEV(sc), "sending DSP start bi failed\n");
}

static inline void wake_up_cmv_ack(struct uea_softc *sc)
{
	BUG_ON(sc->cmv_ack);
	sc->cmv_ack = 1;
	wake_up(&sc->sync_q);
}

static inline int wait_cmv_ack(struct uea_softc *sc)
{
	int ret = uea_wait(sc, sc->cmv_ack , ACK_TIMEOUT);

	sc->cmv_ack = 0;

	uea_dbg(INS_TO_USBDEV(sc), "wait_event_timeout : %d ms\n",
			jiffies_to_msecs(ret));

	if (ret < 0)
		return ret;

	return (ret == 0) ? -ETIMEDOUT : 0;
}

#define UCDC_SEND_ENCAPSULATED_COMMAND 0x00

static int uea_request(struct uea_softc *sc,
		u16 value, u16 index, u16 size, const void *data)
{
	u8 *xfer_buff;
	int ret = -ENOMEM;

	xfer_buff = kmemdup(data, size, GFP_KERNEL);
	if (!xfer_buff) {
		uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
		return ret;
	}

	ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
			      UCDC_SEND_ENCAPSULATED_COMMAND,
			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			      value, index, xfer_buff, size, CTRL_TIMEOUT);

	kfree(xfer_buff);
	if (ret < 0) {
		uea_err(INS_TO_USBDEV(sc), "usb_control_msg error %d\n", ret);
		return ret;
	}

	if (ret != size) {
		uea_err(INS_TO_USBDEV(sc),
		       "usb_control_msg send only %d bytes (instead of %d)\n",
		       ret, size);
		return -EIO;
	}

	return 0;
}

static int uea_cmv_e1(struct uea_softc *sc,
		u8 function, u32 address, u16 offset, u32 data)
{
	struct cmv_e1 cmv;
	int ret;

	uea_enters(INS_TO_USBDEV(sc));
	uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Address : %c%c%c%c, "
			"offset : 0x%04x, data : 0x%08x\n",
			E1_FUNCTION_TYPE(function),
			E1_FUNCTION_SUBTYPE(function),
			E1_GETSA1(address), E1_GETSA2(address),
			E1_GETSA3(address),
			E1_GETSA4(address), offset, data);

	/* we send a request, but we expect a reply */
	sc->cmv_dsc.e1.function = function | 0x2;
	sc->cmv_dsc.e1.idx++;
	sc->cmv_dsc.e1.address = address;
	sc->cmv_dsc.e1.offset = offset;

	cmv.wPreamble = cpu_to_le16(E1_PREAMBLE);
	cmv.bDirection = E1_HOSTTOMODEM;
	cmv.bFunction = function;
	cmv.wIndex = cpu_to_le16(sc->cmv_dsc.e1.idx);
	put_unaligned_le32(address, &cmv.dwSymbolicAddress);
	cmv.wOffsetAddress = cpu_to_le16(offset);
	put_unaligned_le32(data >> 16 | data << 16, &cmv.dwData);

	ret = uea_request(sc, UEA_E1_SET_BLOCK, UEA_MPTX_START,
							sizeof(cmv), &cmv);
	if (ret < 0)
		return ret;
	ret = wait_cmv_ack(sc);
	uea_leaves(INS_TO_USBDEV(sc));
	return ret;
}

static int uea_cmv_e4(struct uea_softc *sc,
		u16 function, u16 group, u16 address, u16 offset, u32 data)
{
	struct cmv_e4 cmv;
	int ret;

	uea_enters(INS_TO_USBDEV(sc));
	memset(&cmv, 0, sizeof(cmv));

	uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Group : 0x%04x, "
		 "Address : 0x%04x, offset : 0x%04x, data : 0x%08x\n",
		 E4_FUNCTION_TYPE(function), E4_FUNCTION_SUBTYPE(function),
		 group, address, offset, data);

	/* we send a request, but we expect a reply */
	sc->cmv_dsc.e4.function = function | (0x1 << 4);
	sc->cmv_dsc.e4.offset = offset;
	sc->cmv_dsc.e4.address = address;
	sc->cmv_dsc.e4.group = group;

	cmv.wFunction = cpu_to_be16(function);
	cmv.wGroup = cpu_to_be16(group);
	cmv.wAddress = cpu_to_be16(address);
	cmv.wOffset = cpu_to_be16(offset);
	cmv.dwData[0] = cpu_to_be32(data);

	ret = uea_request(sc, UEA_E4_SET_BLOCK, UEA_MPTX_START,
							sizeof(cmv), &cmv);
	if (ret < 0)
		return ret;
	ret = wait_cmv_ack(sc);
	uea_leaves(INS_TO_USBDEV(sc));
	return ret;
}

static inline int uea_read_cmv_e1(struct uea_softc *sc,
		u32 address, u16 offset, u32 *data)
{
	int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTREAD),
			  address, offset, 0);
	if (ret < 0)
		uea_err(INS_TO_USBDEV(sc),
			"reading cmv failed with error %d\n", ret);
	else
		*data = sc->data;

	return ret;
}

static inline int uea_read_cmv_e4(struct uea_softc *sc,
		u8 size, u16 group, u16 address, u16 offset, u32 *data)
{
	int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
							E4_REQUESTREAD, size),
			  group, address, offset, 0);
	if (ret < 0)
		uea_err(INS_TO_USBDEV(sc),
			"reading cmv failed with error %d\n", ret);
	else {
		*data = sc->data;
		/* size is in 16-bit word quantities */
		if (size > 2)
			*(data + 1) = sc->data1;
	}
	return ret;
}

static inline int uea_write_cmv_e1(struct uea_softc *sc,
		u32 address, u16 offset, u32 data)
{
	int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTWRITE),
			  address, offset, data);
	if (ret < 0)
		uea_err(INS_TO_USBDEV(sc),
			"writing cmv failed with error %d\n", ret);

	return ret;
}

static inline int uea_write_cmv_e4(struct uea_softc *sc,
		u8 size, u16 group, u16 address, u16 offset, u32 data)
{
	int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
							E4_REQUESTWRITE, size),
			  group, address, offset, data);
	if (ret < 0)
		uea_err(INS_TO_USBDEV(sc),
			"writing cmv failed with error %d\n", ret);

	return ret;
}

static void uea_set_bulk_timeout(struct uea_softc *sc, u32 dsrate)
{
	int ret;
	u16 timeout;

	/* in bulk mode the modem have problem with high rate
	 * changing internal timing could improve things, but the
	 * value is mysterious.
	 * ADI930 don't support it (-EPIPE error).
	 */

	if (UEA_CHIP_VERSION(sc) == ADI930 ||
	    altsetting[sc->modem_index] > 0 ||
	    sc->stats.phy.dsrate == dsrate)
		return;

	/* Original timming (1Mbit/s) from ADI (used in windows driver) */
	timeout = (dsrate <= 1024*1024) ? 0 : 1;
	ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
	uea_info(INS_TO_USBDEV(sc), "setting new timeout %d%s\n",
		 timeout,  ret < 0 ? " failed" : "");

}

/*
 * Monitor the modem and update the stat
 * return 0 if everything is ok
 * return < 0 if an error occurs (-EAGAIN reboot needed)
 */
static int uea_stat_e1(struct uea_softc *sc)
{
	u32 data;
	int ret;

	uea_enters(INS_TO_USBDEV(sc));
	data = sc->stats.phy.state;

	ret = uea_read_cmv_e1(sc, E1_SA_STAT, 0, &sc->stats.phy.state);
	if (ret < 0)
		return ret;

	switch (GET_STATUS(sc->stats.phy.state)) {
	case 0:		/* not yet synchronized */
		uea_dbg(INS_TO_USBDEV(sc),
		       "modem not yet synchronized\n");
		return 0;

	case 1:		/* initialization */
		uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
		return 0;

	case 2:		/* operational */
		uea_vdbg(INS_TO_USBDEV(sc), "modem operational\n");
		break;

	case 3:		/* fail ... */
		uea_info(INS_TO_USBDEV(sc), "modem synchronization failed"
					" (may be try other cmv/dsp)\n");
		return -EAGAIN;

	case 4 ... 6:	/* test state */
		uea_warn(INS_TO_USBDEV(sc),
				"modem in test mode - not supported\n");
		return -EAGAIN;

	case 7:		/* fast-retain ... */
		uea_info(INS_TO_USBDEV(sc), "modem in fast-retain mode\n");
		return 0;
	default:
		uea_err(INS_TO_USBDEV(sc), "modem invalid SW mode %d\n",
			GET_STATUS(sc->stats.phy.state));
		return -EAGAIN;
	}

	if (GET_STATUS(data) != 2) {
		uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
		uea_info(INS_TO_USBDEV(sc), "modem operational\n");

		/* release the dsp firmware as it is not needed until
		 * the next failure
		 */
		if (sc->dsp_firm) {
			release_firmware(sc->dsp_firm);
			sc->dsp_firm = NULL;
		}
	}

	/* always update it as atm layer could not be init when we switch to
	 * operational state
	 */
	UPDATE_ATM_SIGNAL(ATM_PHY_SIG_FOUND);

	/* wake up processes waiting for synchronization */
	wake_up(&sc->sync_q);

	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 2, &sc->stats.phy.flags);
	if (ret < 0)
		return ret;
	sc->stats.phy.mflags |= sc->stats.phy.flags;

	/* in case of a flags ( for example delineation LOSS (& 0x10)),
	 * we check the status again in order to detect the failure earlier
	 */
	if (sc->stats.phy.flags) {
		uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
		       sc->stats.phy.flags);
		return 0;
	}

	ret = uea_read_cmv_e1(sc, E1_SA_RATE, 0, &data);
	if (ret < 0)
		return ret;

	uea_set_bulk_timeout(sc, (data >> 16) * 32);
	sc->stats.phy.dsrate = (data >> 16) * 32;
	sc->stats.phy.usrate = (data & 0xffff) * 32;
	UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);

	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 23, &data);
	if (ret < 0)
		return ret;
	sc->stats.phy.dsattenuation = (data & 0xff) / 2;

	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 47, &data);
	if (ret < 0)
		return ret;
	sc->stats.phy.usattenuation = (data & 0xff) / 2;

	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 25, &sc->stats.phy.dsmargin);
	if (ret < 0)
		return ret;

	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 49, &sc->stats.phy.usmargin);
	if (ret < 0)
		return ret;

	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 51, &sc->stats.phy.rxflow);
	if (ret < 0)
		return ret;

	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 52, &sc->stats.phy.txflow);
	if (ret < 0)
		return ret;

	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 54, &sc->stats.phy.dsunc);
	if (ret < 0)
		return ret;

	/* only for atu-c */
	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 58, &sc->stats.phy.usunc);
	if (ret < 0)
		return ret;

	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 53, &sc->stats.phy.dscorr);
	if (ret < 0)
		return ret;

	/* only for atu-c */
	ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 57, &sc->stats.phy.uscorr);
	if (ret < 0)
		return ret;

	ret = uea_read_cmv_e1(sc, E1_SA_INFO, 8, &sc->stats.phy.vidco);
	if (ret < 0)
		return ret;

	ret = uea_read_cmv_e1(sc, E1_SA_INFO, 13, &sc->stats.phy.vidcpe);
	if (ret < 0)
		return ret;

	return 0;
}

static int uea_stat_e4(struct uea_softc *sc)
{
	u32 data;
	u32 tmp_arr[2];
	int ret;

	uea_enters(INS_TO_USBDEV(sc));
	data = sc->stats.phy.state;

	/* XXX only need to be done before operationnal... */
	ret = uea_read_cmv_e4(sc, 1, E4_SA_STAT, 0, 0, &sc->stats.phy.state);
	if (ret < 0)
		return ret;

	switch (sc->stats.phy.state) {
	case 0x0:	/* not yet synchronized */
	case 0x1:
	case 0x3:
	case 0x4:
		uea_dbg(INS_TO_USBDEV(sc), "modem not yet "
						"synchronized\n");
		return 0;
	case 0x5:	/* initialization */
	case 0x6:
	case 0x9:
	case 0xa:
		uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
		return 0;
	case 0x2:	/* fail ... */
		uea_info(INS_TO_USBDEV(sc), "modem synchronization "
				"failed (may be try other cmv/dsp)\n");
		return -EAGAIN;
	case 0x7:	/* operational */
		break;
	default:
		uea_warn(INS_TO_USBDEV(sc), "unknown state: %x\n",
						sc->stats.phy.state);
		return 0;
	}

	if (data != 7) {
		uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
		uea_info(INS_TO_USBDEV(sc), "modem operational\n");

		/* release the dsp firmware as it is not needed until
		 * the next failure
		 */
		if (sc->dsp_firm) {
			release_firmware(sc->dsp_firm);
			sc->dsp_firm = NULL;
		}
	}

	/* always update it as atm layer could not be init when we switch to
	 * operational state
	 */
	UPDATE_ATM_SIGNAL(ATM_PHY_SIG_FOUND);

	/* wake up processes waiting for synchronization */
	wake_up(&sc->sync_q);

	/* TODO improve this state machine :
	 * we need some CMV info : what they do and their unit
	 * we should find the equivalent of eagle3- CMV
	 */
	/* check flags */
	ret = uea_read_cmv_e4(sc, 1, E4_SA_DIAG, 0, 0, &sc->stats.phy.flags);
	if (ret < 0)
		return ret;
	sc->stats.phy.mflags |= sc->stats.phy.flags;

	/* in case of a flags ( for example delineation LOSS (& 0x10)),
	 * we check the status again in order to detect the failure earlier
	 */
	if (sc->stats.phy.flags) {
		uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
		       sc->stats.phy.flags);
		if (sc->stats.phy.flags & 1) /* delineation LOSS */
			return -EAGAIN;
		if (sc->stats.phy.flags & 0x4000) /* Reset Flag */
			return -EAGAIN;
		return 0;
	}

	/* rate data may be in upper or lower half of 64 bit word, strange */
	ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 0, 0, tmp_arr);
	if (ret < 0)
		return ret;
	data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
	sc->stats.phy.usrate = data / 1000;

	ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 1, 0, tmp_arr);
	if (ret < 0)
		return ret;
	data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
	uea_set_bulk_timeout(sc, data / 1000);
	sc->stats.phy.dsrate = data / 1000;
	UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);

	ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 1, &data);
	if (ret < 0)
		return ret;
	sc->stats.phy.dsattenuation = data / 10;

	ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 1, &data);
	if (ret < 0)
		return ret;
	sc->stats.phy.usattenuation = data / 10;

	ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 3, &data);
	if (ret < 0)
		return ret;
	sc->stats.phy.dsmargin = data / 2;

	ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 3, &data);
	if (ret < 0)
		return ret;
	sc->stats.phy.usmargin = data / 10;

	return 0;
}

static void cmvs_file_name(struct uea_softc *sc, char *const cmv_name, int ver)
{
	char file_arr[] = "CMVxy.bin";
	char *file;

	kparam_block_sysfs_write(cmv_file);
	/* set proper name corresponding modem version and line type */
	if (cmv_file[sc->modem_index] == NULL) {
		if (UEA_CHIP_VERSION(sc) == ADI930)
			file_arr[3] = '9';
		else if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
			file_arr[3] = '4';
		else
			file_arr[3] = 'e';

		file_arr[4] = IS_ISDN(sc) ? 'i' : 'p';
		file = file_arr;
	} else
		file = cmv_file[sc->modem_index];

	strcpy(cmv_name, FW_DIR);
	strlcat(cmv_name, file, UEA_FW_NAME_MAX);
	if (ver == 2)
		strlcat(cmv_name, ".v2", UEA_FW_NAME_MAX);
	kparam_unblock_sysfs_write(cmv_file);
}

static int request_cmvs_old(struct uea_softc *sc,
		 void **cmvs, const struct firmware **fw)
{
	int ret, size;
	u8 *data;
	char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */

	cmvs_file_name(sc, cmv_name, 1);
	ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
	if (ret < 0) {
		uea_err(INS_TO_USBDEV(sc),
		       "requesting firmware %s failed with error %d\n",
		       cmv_name, ret);
		return ret;
	}

	data = (u8 *) (*fw)->data;
	size = (*fw)->size;
	if (size < 1)
		goto err_fw_corrupted;

	if (size != *data * sizeof(struct uea_cmvs_v1) + 1)
		goto err_fw_corrupted;

	*cmvs = (void *)(data + 1);
	return *data;

err_fw_corrupted:
	uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
	release_firmware(*fw);
	return -EILSEQ;
}

static int request_cmvs(struct uea_softc *sc,
		 void **cmvs, const struct firmware **fw, int *ver)
{
	int ret, size;
	u32 crc;
	u8 *data;
	char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */

	cmvs_file_name(sc, cmv_name, 2);
	ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
	if (ret < 0) {
		/* if caller can handle old version, try to provide it */
		if (*ver == 1) {
			uea_warn(INS_TO_USBDEV(sc), "requesting "
							"firmware %s failed, "
				"try to get older cmvs\n", cmv_name);
			return request_cmvs_old(sc, cmvs, fw);
		}
		uea_err(INS_TO_USBDEV(sc),
		       "requesting firmware %s failed with error %d\n",
		       cmv_name, ret);
		return ret;
	}

	size = (*fw)->size;
	data = (u8 *) (*fw)->data;
	if (size < 4 || strncmp(data, "cmv2", 4) != 0) {
		if (*ver == 1) {
			uea_warn(INS_TO_USBDEV(sc), "firmware %s is corrupted,"
				" try to get older cmvs\n", cmv_name);
			release_firmware(*fw);
			return request_cmvs_old(sc, cmvs, fw);
		}
		goto err_fw_corrupted;
	}

	*ver = 2;

	data += 4;
	size -= 4;
	if (size < 5)
		goto err_fw_corrupted;

	crc = get_unaligned_le32(data);
	data += 4;
	size -= 4;
	if (crc32_be(0, data, size) != crc)
		goto err_fw_corrupted;

	if (size != *data * sizeof(struct uea_cmvs_v2) + 1)
		goto err_fw_corrupted;

	*cmvs = (void *) (data + 1);
	return *data;

err_fw_corrupted:
	uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
	release_firmware(*fw);
	return -EILSEQ;
}

static int uea_send_cmvs_e1(struct uea_softc *sc)
{
	int i, ret, len;
	void *cmvs_ptr;
	const struct firmware *cmvs_fw;
	int ver = 1; /* we can handle v1 cmv firmware version; */

	/* Enter in R-IDLE (cmv) until instructed otherwise */
	ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 1);
	if (ret < 0)
		return ret;

	/* Dump firmware version */
	ret = uea_read_cmv_e1(sc, E1_SA_INFO, 10, &sc->stats.phy.firmid);
	if (ret < 0)
		return ret;
	uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
			sc->stats.phy.firmid);

	/* get options */
	ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
	if (ret < 0)
		return ret;

	/* send options */
	if (ver == 1) {
		struct uea_cmvs_v1 *cmvs_v1 = cmvs_ptr;

		uea_warn(INS_TO_USBDEV(sc), "use deprecated cmvs version, "
			"please update your firmware\n");

		for (i = 0; i < len; i++) {
			ret = uea_write_cmv_e1(sc,
				get_unaligned_le32(&cmvs_v1[i].address),
				get_unaligned_le16(&cmvs_v1[i].offset),
				get_unaligned_le32(&cmvs_v1[i].data));
			if (ret < 0)
				goto out;
		}
	} else if (ver == 2) {
		struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;

		for (i = 0; i < len; i++) {
			ret = uea_write_cmv_e1(sc,
				get_unaligned_le32(&cmvs_v2[i].address),
				(u16) get_unaligned_le32(&cmvs_v2[i].offset),
				get_unaligned_le32(&cmvs_v2[i].data));
			if (ret < 0)
				goto out;
		}
	} else {
		/* This really should not happen */
		uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
		goto out;
	}

	/* Enter in R-ACT-REQ */
	ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 2);
	uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
	uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
						"synchronization...\n");
out:
	release_firmware(cmvs_fw);
	return ret;
}

static int uea_send_cmvs_e4(struct uea_softc *sc)
{
	int i, ret, len;
	void *cmvs_ptr;
	const struct firmware *cmvs_fw;
	int ver = 2; /* we can only handle v2 cmv firmware version; */

	/* Enter in R-IDLE (cmv) until instructed otherwise */
	ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 1);
	if (ret < 0)
		return ret;

	/* Dump firmware version */
	/* XXX don't read the 3th byte as it is always 6 */
	ret = uea_read_cmv_e4(sc, 2, E4_SA_INFO, 55, 0, &sc->stats.phy.firmid);
	if (ret < 0)
		return ret;
	uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
			sc->stats.phy.firmid);


	/* get options */
	ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
	if (ret < 0)
		return ret;

	/* send options */
	if (ver == 2) {
		struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;

		for (i = 0; i < len; i++) {
			ret = uea_write_cmv_e4(sc, 1,
				get_unaligned_le32(&cmvs_v2[i].group),
				get_unaligned_le32(&cmvs_v2[i].address),
				get_unaligned_le32(&cmvs_v2[i].offset),
				get_unaligned_le32(&cmvs_v2[i].data));
			if (ret < 0)
				goto out;
		}
	} else {
		/* This really should not happen */
		uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
		goto out;
	}

	/* Enter in R-ACT-REQ */
	ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 2);
	uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
	uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
						"synchronization...\n");
out:
	release_firmware(cmvs_fw);
	return ret;
}

/* Start boot post firmware modem:
 * - send reset commands through usb control pipe
 * - start workqueue for DSP loading
 * - send CMV options to modem
 */

static int uea_start_reset(struct uea_softc *sc)
{
	u16 zero = 0;	/* ;-) */
	int ret;

	uea_enters(INS_TO_USBDEV(sc));
	uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");

	/* mask interrupt */
	sc->booting = 1;
	/* We need to set this here because, a ack timeout could have occurred,
	 * but before we start the reboot, the ack occurs and set this to 1.
	 * So we will failed to wait Ready CMV.
	 */
	sc->cmv_ack = 0;
	UPDATE_ATM_SIGNAL(ATM_PHY_SIG_LOST);

	/* reset statistics */
	memset(&sc->stats, 0, sizeof(struct uea_stats));

	/* tell the modem that we want to boot in IDMA mode */
	uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
	uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL);

	/* enter reset mode */
	uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL);

	/* original driver use 200ms, but windows driver use 100ms */
	ret = uea_wait(sc, 0, msecs_to_jiffies(100));
	if (ret < 0)
		return ret;

	/* leave reset mode */
	uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);

	if (UEA_CHIP_VERSION(sc) != EAGLE_IV) {
		/* clear tx and rx mailboxes */
		uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
		uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
		uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
	}

	ret = uea_wait(sc, 0, msecs_to_jiffies(1000));
	if (ret < 0)
		return ret;

	if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
		sc->cmv_dsc.e4.function = E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
							E4_MODEMREADY, 1);
	else
		sc->cmv_dsc.e1.function = E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
							E1_MODEMREADY);

	/* demask interrupt */
	sc->booting = 0;

	/* start loading DSP */
	sc->pageno = 0;
	sc->ovl = 0;
	schedule_work(&sc->task);

	/* wait for modem ready CMV */
	ret = wait_cmv_ack(sc);
	if (ret < 0)
		return ret;

	uea_vdbg(INS_TO_USBDEV(sc), "Ready CMV received\n");

	ret = sc->send_cmvs(sc);
	if (ret < 0)
		return ret;

	sc->reset = 0;
	uea_leaves(INS_TO_USBDEV(sc));
	return ret;
}

/*
 * In case of an error wait 1s before rebooting the modem
 * if the modem don't request reboot (-EAGAIN).
 * Monitor the modem every 1s.
 */

static int uea_kthread(void *data)
{
	struct uea_softc *sc = data;
	int ret = -EAGAIN;

	set_freezable();
	uea_enters(INS_TO_USBDEV(sc));
	while (!kthread_should_stop()) {
		if (ret < 0 || sc->reset)
			ret = uea_start_reset(sc);
		if (!ret)
			ret = sc->stat(sc);
		if (ret != -EAGAIN)
			uea_wait(sc, 0, msecs_to_jiffies(1000));
		try_to_freeze();
	}
	uea_leaves(INS_TO_USBDEV(sc));
	return ret;
}

/* Load second usb firmware for ADI930 chip */
static int load_XILINX_firmware(struct uea_softc *sc)
{
	const struct firmware *fw_entry;
	int ret, size, u, ln;
	const u8 *pfw;
	u8 value;
	char *fw_name = FW_DIR "930-fpga.bin";

	uea_enters(INS_TO_USBDEV(sc));

	ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev);
	if (ret) {
		uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n",
		       fw_name);
		goto err0;
	}

	pfw = fw_entry->data;
	size = fw_entry->size;
	if (size != 0x577B) {
		uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
		       fw_name);
		ret = -EILSEQ;
		goto err1;
	}
	for (u = 0; u < size; u += ln) {
		ln = min(size - u, 64);
		ret = uea_request(sc, 0xe, 0, ln, pfw + u);
		if (ret < 0) {
			uea_err(INS_TO_USBDEV(sc),
			       "elsa download data failed (%d)\n", ret);
			goto err1;
		}
	}

	/* finish to send the fpga */
	ret = uea_request(sc, 0xe, 1, 0, NULL);
	if (ret < 0) {
		uea_err(INS_TO_USBDEV(sc),
				"elsa download data failed (%d)\n", ret);
		goto err1;
	}

	/* Tell the modem we finish : de-assert reset */
	value = 0;
	ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
	if (ret < 0)
		uea_err(sc->usb_dev, "elsa de-assert failed with error"
								" %d\n", ret);

err1:
	release_firmware(fw_entry);
err0:
	uea_leaves(INS_TO_USBDEV(sc));
	return ret;
}

/* The modem send us an ack. First with check if it right */
static void uea_dispatch_cmv_e1(struct uea_softc *sc, struct intr_pkt *intr)
{
	struct cmv_dsc_e1 *dsc = &sc->cmv_dsc.e1;
	struct cmv_e1 *cmv = &intr->u.e1.s2.cmv;

	uea_enters(INS_TO_USBDEV(sc));
	if (le16_to_cpu(cmv->wPreamble) != E1_PREAMBLE)
		goto bad1;

	if (cmv->bDirection != E1_MODEMTOHOST)
		goto bad1;

	/* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
	 * the first MEMACCESS cmv. Ignore it...
	 */
	if (cmv->bFunction != dsc->function) {
		if (UEA_CHIP_VERSION(sc) == ADI930
				&& cmv->bFunction ==  E1_MAKEFUNCTION(2, 2)) {
			cmv->wIndex = cpu_to_le16(dsc->idx);
			put_unaligned_le32(dsc->address,
						&cmv->dwSymbolicAddress);
			cmv->wOffsetAddress = cpu_to_le16(dsc->offset);
		} else
			goto bad2;
	}

	if (cmv->bFunction == E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
							E1_MODEMREADY)) {
		wake_up_cmv_ack(sc);
		uea_leaves(INS_TO_USBDEV(sc));
		return;
	}

	/* in case of MEMACCESS */
	if (le16_to_cpu(cmv->wIndex) != dsc->idx ||
	    get_unaligned_le32(&cmv->dwSymbolicAddress) != dsc->address ||
	    le16_to_cpu(cmv->wOffsetAddress) != dsc->offset)
		goto bad2;

	sc->data = get_unaligned_le32(&cmv->dwData);
	sc->data = sc->data << 16 | sc->data >> 16;

	wake_up_cmv_ack(sc);
	uea_leaves(INS_TO_USBDEV(sc));
	return;

bad2:
	uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
			"Function : %d, Subfunction : %d\n",
			E1_FUNCTION_TYPE(cmv->bFunction),
			E1_FUNCTION_SUBTYPE(cmv->bFunction));
	uea_leaves(INS_TO_USBDEV(sc));
	return;

bad1:
	uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
			"wPreamble %d, bDirection %d\n",
			le16_to_cpu(cmv->wPreamble), cmv->bDirection);
	uea_leaves(INS_TO_USBDEV(sc));
}

/* The modem send us an ack. First with check if it right */
static void uea_dispatch_cmv_e4(struct uea_softc *sc, struct intr_pkt *intr)
{
	struct cmv_dsc_e4 *dsc = &sc->cmv_dsc.e4;
	struct cmv_e4 *cmv = &intr->u.e4.s2.cmv;

	uea_enters(INS_TO_USBDEV(sc));
	uea_dbg(INS_TO_USBDEV(sc), "cmv %x %x %x %x %x %x\n",
		be16_to_cpu(cmv->wGroup), be16_to_cpu(cmv->wFunction),
		be16_to_cpu(cmv->wOffset), be16_to_cpu(cmv->wAddress),
		be32_to_cpu(cmv->dwData[0]), be32_to_cpu(cmv->dwData[1]));

	if (be16_to_cpu(cmv->wFunction) != dsc->function)
		goto bad2;

	if (be16_to_cpu(cmv->wFunction) == E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
						E4_MODEMREADY, 1)) {
		wake_up_cmv_ack(sc);
		uea_leaves(INS_TO_USBDEV(sc));
		return;
	}

	/* in case of MEMACCESS */
	if (be16_to_cpu(cmv->wOffset) != dsc->offset ||
	    be16_to_cpu(cmv->wGroup) != dsc->group ||
	    be16_to_cpu(cmv->wAddress) != dsc->address)
		goto bad2;

	sc->data = be32_to_cpu(cmv->dwData[0]);
	sc->data1 = be32_to_cpu(cmv->dwData[1]);
	wake_up_cmv_ack(sc);
	uea_leaves(INS_TO_USBDEV(sc));
	return;

bad2:
	uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
			"Function : %d, Subfunction : %d\n",
			E4_FUNCTION_TYPE(cmv->wFunction),
			E4_FUNCTION_SUBTYPE(cmv->wFunction));
	uea_leaves(INS_TO_USBDEV(sc));
	return;
}

static void uea_schedule_load_page_e1(struct uea_softc *sc,
						struct intr_pkt *intr)
{
	sc->pageno = intr->e1_bSwapPageNo;
	sc->ovl = intr->e1_bOvl >> 4 | intr->e1_bOvl << 4;
	schedule_work(&sc->task);
}

static void uea_schedule_load_page_e4(struct uea_softc *sc,
						struct intr_pkt *intr)
{
	sc->pageno = intr->e4_bSwapPageNo;
	schedule_work(&sc->task);
}

/*
 * interrupt handler
 */
static void uea_intr(struct urb *urb)
{
	struct uea_softc *sc = urb->context;
	struct intr_pkt *intr = urb->transfer_buffer;
	int status = urb->status;

	uea_enters(INS_TO_USBDEV(sc));

	if (unlikely(status < 0)) {
		uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n",
		       status);
		return;
	}

	/* device-to-host interrupt */
	if (intr->bType != 0x08 || sc->booting) {
		uea_err(INS_TO_USBDEV(sc), "wrong interrupt\n");
		goto resubmit;
	}

	switch (le16_to_cpu(intr->wInterrupt)) {
	case INT_LOADSWAPPAGE:
		sc->schedule_load_page(sc, intr);
		break;

	case INT_INCOMINGCMV:
		sc->dispatch_cmv(sc, intr);
		break;

	default:
		uea_err(INS_TO_USBDEV(sc), "unknown interrupt %u\n",
		       le16_to_cpu(intr->wInterrupt));
	}

resubmit:
	usb_submit_urb(sc->urb_int, GFP_ATOMIC);
}

/*
 * Start the modem : init the data and start kernel thread
 */
static int uea_boot(struct uea_softc *sc)
{
	int ret, size;
	struct intr_pkt *intr;

	uea_enters(INS_TO_USBDEV(sc));

	if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
		size = E4_INTR_PKT_SIZE;
		sc->dispatch_cmv = uea_dispatch_cmv_e4;
		sc->schedule_load_page = uea_schedule_load_page_e4;
		sc->stat = uea_stat_e4;
		sc->send_cmvs = uea_send_cmvs_e4;
		INIT_WORK(&sc->task, uea_load_page_e4);
	} else {
		size = E1_INTR_PKT_SIZE;
		sc->dispatch_cmv = uea_dispatch_cmv_e1;
		sc->schedule_load_page = uea_schedule_load_page_e1;
		sc->stat = uea_stat_e1;
		sc->send_cmvs = uea_send_cmvs_e1;
		INIT_WORK(&sc->task, uea_load_page_e1);
	}

	init_waitqueue_head(&sc->sync_q);

	if (UEA_CHIP_VERSION(sc) == ADI930)
		load_XILINX_firmware(sc);

	intr = kmalloc(size, GFP_KERNEL);
	if (!intr) {
		uea_err(INS_TO_USBDEV(sc),
		       "cannot allocate interrupt package\n");
		goto err0;
	}

	sc->urb_int = usb_alloc_urb(0, GFP_KERNEL);
	if (!sc->urb_int) {
		uea_err(INS_TO_USBDEV(sc), "cannot allocate interrupt URB\n");
		goto err1;
	}

	usb_fill_int_urb(sc->urb_int, sc->usb_dev,
			 usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
			 intr, size, uea_intr, sc,
			 sc->usb_dev->actconfig->interface[0]->altsetting[0].
			 endpoint[0].desc.bInterval);

	ret = usb_submit_urb(sc->urb_int, GFP_KERNEL);
	if (ret < 0) {
		uea_err(INS_TO_USBDEV(sc),
		       "urb submition failed with error %d\n", ret);
		goto err1;
	}

	/* Create worker thread, but don't start it here.  Start it after
	 * all usbatm generic initialization is done.
	 */
	sc->kthread = kthread_create(uea_kthread, sc, "ueagle-atm");
	if (IS_ERR(sc->kthread)) {
		uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
		goto err2;
	}

	uea_leaves(INS_TO_USBDEV(sc));
	return 0;

err2:
	usb_kill_urb(sc->urb_int);
err1:
	usb_free_urb(sc->urb_int);
	sc->urb_int = NULL;
	kfree(intr);
err0:
	uea_leaves(INS_TO_USBDEV(sc));
	return -ENOMEM;
}

/*
 * Stop the modem : kill kernel thread and free data
 */
static void uea_stop(struct uea_softc *sc)
{
	int ret;
	uea_enters(INS_TO_USBDEV(sc));
	ret = kthread_stop(sc->kthread);
	uea_dbg(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret);

	uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);

	usb_kill_urb(sc->urb_int);
	kfree(sc->urb_int->transfer_buffer);
	usb_free_urb(sc->urb_int);

	/* flush the work item, when no one can schedule it */
	flush_work_sync(&sc->task);

	if (sc->dsp_firm)
		release_firmware(sc->dsp_firm);
	uea_leaves(INS_TO_USBDEV(sc));
}

/* syfs interface */
static struct uea_softc *dev_to_uea(struct device *dev)
{
	struct usb_interface *intf;
	struct usbatm_data *usbatm;

	intf = to_usb_interface(dev);
	if (!intf)
		return NULL;

	usbatm = usb_get_intfdata(intf);
	if (!usbatm)
		return NULL;

	return usbatm->driver_data;
}

static ssize_t read_status(struct device *dev, struct device_attribute *attr,
		char *buf)
{
	int ret = -ENODEV;
	struct uea_softc *sc;

	mutex_lock(&uea_mutex);
	sc = dev_to_uea(dev);
	if (!sc)
		goto out;
	ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.state);
out:
	mutex_unlock(&uea_mutex);
	return ret;
}

static ssize_t reboot(struct device *dev, struct device_attribute *attr,
		const char *buf, size_t count)
{
	int ret = -ENODEV;
	struct uea_softc *sc;

	mutex_lock(&uea_mutex);
	sc = dev_to_uea(dev);
	if (!sc)
		goto out;
	sc->reset = 1;
	ret = count;
out:
	mutex_unlock(&uea_mutex);
	return ret;
}

static DEVICE_ATTR(stat_status, S_IWUSR | S_IRUGO, read_status, reboot);

static ssize_t read_human_status(struct device *dev,
			struct device_attribute *attr, char *buf)
{
	int ret = -ENODEV;
	int modem_state;
	struct uea_softc *sc;

	mutex_lock(&uea_mutex);
	sc = dev_to_uea(dev);
	if (!sc)
		goto out;

	if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
		switch (sc->stats.phy.state) {
		case 0x0:	/* not yet synchronized */
		case 0x1:
		case 0x3:
		case 0x4:
			modem_state = 0;
			break;
		case 0x5:	/* initialization */
		case 0x6:
		case 0x9:
		case 0xa:
			modem_state = 1;
			break;
		case 0x7:	/* operational */
			modem_state = 2;
			break;
		case 0x2:	/* fail ... */
			modem_state = 3;
			break;
		default:	/* unknown */
			modem_state = 4;
			break;
		}
	} else
		modem_state = GET_STATUS(sc->stats.phy.state);

	switch (modem_state) {
	case 0:
		ret = sprintf(buf, "Modem is booting\n");
		break;
	case 1:
		ret = sprintf(buf, "Modem is initializing\n");
		break;
	case 2:
		ret = sprintf(buf, "Modem is operational\n");
		break;
	case 3:
		ret = sprintf(buf, "Modem synchronization failed\n");
		break;
	default:
		ret = sprintf(buf, "Modem state is unknown\n");
		break;
	}
out:
	mutex_unlock(&uea_mutex);
	return ret;
}

static DEVICE_ATTR(stat_human_status, S_IRUGO, read_human_status, NULL);

static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
		char *buf)
{
	int ret = -ENODEV;
	struct uea_softc *sc;
	char *delin = "GOOD";

	mutex_lock(&uea_mutex);
	sc = dev_to_uea(dev);
	if (!sc)
		goto out;

	if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
		if (sc->stats.phy.flags & 0x4000)
			delin = "RESET";
		else if (sc->stats.phy.flags & 0x0001)
			delin = "LOSS";
	} else {
		if (sc->stats.phy.flags & 0x0C00)
			delin = "ERROR";
		else if (sc->stats.phy.flags & 0x0030)
			delin = "LOSS";
	}

	ret = sprintf(buf, "%s\n", delin);
out:
	mutex_unlock(&uea_mutex);
	return ret;
}

static DEVICE_ATTR(stat_delin, S_IRUGO, read_delin, NULL);

#define UEA_ATTR(name, reset)					\
								\
static ssize_t read_##name(struct device *dev,			\
		struct device_attribute *attr, char *buf)	\
{								\
	int ret = -ENODEV;					\
	struct uea_softc *sc;					\
								\
	mutex_lock(&uea_mutex);					\
	sc = dev_to_uea(dev);					\
	if (!sc)						\
		goto out;					\
	ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name);	\
	if (reset)						\
		sc->stats.phy.name = 0;				\
out:								\
	mutex_unlock(&uea_mutex);				\
	return ret;						\
}								\
								\
static DEVICE_ATTR(stat_##name, S_IRUGO, read_##name, NULL)

UEA_ATTR(mflags, 1);
UEA_ATTR(vidcpe, 0);
UEA_ATTR(usrate, 0);
UEA_ATTR(dsrate, 0);
UEA_ATTR(usattenuation, 0);
UEA_ATTR(dsattenuation, 0);
UEA_ATTR(usmargin, 0);
UEA_ATTR(dsmargin, 0);
UEA_ATTR(txflow, 0);
UEA_ATTR(rxflow, 0);
UEA_ATTR(uscorr, 0);
UEA_ATTR(dscorr, 0);
UEA_ATTR(usunc, 0);
UEA_ATTR(dsunc, 0);
UEA_ATTR(firmid, 0);

/* Retrieve the device End System Identifier (MAC) */

static int uea_getesi(struct uea_softc *sc, u_char * esi)
{
	unsigned char mac_str[2 * ETH_ALEN + 1];
	int i;
	if (usb_string
	    (sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str,
	     sizeof(mac_str)) != 2 * ETH_ALEN)
		return 1;

	for (i = 0; i < ETH_ALEN; i++)
		esi[i] = hex_to_bin(mac_str[2 * i]) * 16 +
			 hex_to_bin(mac_str[2 * i + 1]);

	return 0;
}

/* ATM stuff */
static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
{
	struct uea_softc *sc = usbatm->driver_data;

	return uea_getesi(sc, atm_dev->esi);
}

static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
{
	struct uea_softc *sc = usbatm->driver_data;

	wait_event_interruptible(sc->sync_q, IS_OPERATIONAL(sc));

	return 0;

}

static int claim_interface(struct usb_device *usb_dev,
			   struct usbatm_data *usbatm, int ifnum)
{
	int ret;
	struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum);

	if (!intf) {
		uea_err(usb_dev, "interface %d not found\n", ifnum);
		return -ENODEV;
	}

	ret = usb_driver_claim_interface(&uea_driver, intf, usbatm);
	if (ret != 0)
		uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum,
		       ret);
	return ret;
}

static struct attribute *attrs[] = {
	&dev_attr_stat_status.attr,
	&dev_attr_stat_mflags.attr,
	&dev_attr_stat_human_status.attr,
	&dev_attr_stat_delin.attr,
	&dev_attr_stat_vidcpe.attr,
	&dev_attr_stat_usrate.attr,
	&dev_attr_stat_dsrate.attr,
	&dev_attr_stat_usattenuation.attr,
	&dev_attr_stat_dsattenuation.attr,
	&dev_attr_stat_usmargin.attr,
	&dev_attr_stat_dsmargin.attr,
	&dev_attr_stat_txflow.attr,
	&dev_attr_stat_rxflow.attr,
	&dev_attr_stat_uscorr.attr,
	&dev_attr_stat_dscorr.attr,
	&dev_attr_stat_usunc.attr,
	&dev_attr_stat_dsunc.attr,
	&dev_attr_stat_firmid.attr,
	NULL,
};
static struct attribute_group attr_grp = {
	.attrs = attrs,
};

static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
		   const struct usb_device_id *id)
{
	struct usb_device *usb = interface_to_usbdev(intf);
	struct uea_softc *sc;
	int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
	unsigned int alt;

	uea_enters(usb);

	/* interface 0 is for firmware/monitoring */
	if (ifnum != UEA_INTR_IFACE_NO)
		return -ENODEV;

	usbatm->flags = (sync_wait[modem_index] ? 0 : UDSL_SKIP_HEAVY_INIT);

	/* interface 1 is for outbound traffic */
	ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO);
	if (ret < 0)
		return ret;

	/* ADI930 has only 2 interfaces and inbound traffic is on interface 1 */
	if (UEA_CHIP_VERSION(id) != ADI930) {
		/* interface 2 is for inbound traffic */
		ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO);
		if (ret < 0)
			return ret;
	}

	sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
	if (!sc) {
		uea_err(usb, "uea_init: not enough memory !\n");
		return -ENOMEM;
	}

	sc->usb_dev = usb;
	usbatm->driver_data = sc;
	sc->usbatm = usbatm;
	sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0;
	sc->driver_info = id->driver_info;

	/* first try to use module parameter */
	if (annex[sc->modem_index] == 1)
		sc->annex = ANNEXA;
	else if (annex[sc->modem_index] == 2)
		sc->annex = ANNEXB;
	/* try to autodetect annex */
	else if (sc->driver_info & AUTO_ANNEX_A)
		sc->annex = ANNEXA;
	else if (sc->driver_info & AUTO_ANNEX_B)
		sc->annex = ANNEXB;
	else
		sc->annex = (le16_to_cpu
		(sc->usb_dev->descriptor.bcdDevice) & 0x80) ? ANNEXB : ANNEXA;

	alt = altsetting[sc->modem_index];
	/* ADI930 don't support iso */
	if (UEA_CHIP_VERSION(id) != ADI930 && alt > 0) {
		if (alt <= 8 &&
			usb_set_interface(usb, UEA_DS_IFACE_NO, alt) == 0) {
			uea_dbg(usb, "set alternate %u for 2 interface\n", alt);
			uea_info(usb, "using iso mode\n");
			usbatm->flags |= UDSL_USE_ISOC | UDSL_IGNORE_EILSEQ;
		} else {
			uea_err(usb, "setting alternate %u failed for "
					"2 interface, using bulk mode\n", alt);
		}
	}

	ret = sysfs_create_group(&intf->dev.kobj, &attr_grp);
	if (ret < 0)
		goto error;

	ret = uea_boot(sc);
	if (ret < 0)
		goto error_rm_grp;

	return 0;

error_rm_grp:
	sysfs_remove_group(&intf->dev.kobj, &attr_grp);
error:
	kfree(sc);
	return ret;
}

static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
{
	struct uea_softc *sc = usbatm->driver_data;

	sysfs_remove_group(&intf->dev.kobj, &attr_grp);
	uea_stop(sc);
	kfree(sc);
}

static struct usbatm_driver uea_usbatm_driver = {
	.driver_name = "ueagle-atm",
	.bind = uea_bind,
	.atm_start = uea_atm_open,
	.unbind = uea_unbind,
	.heavy_init = uea_heavy,
	.bulk_in = UEA_BULK_DATA_PIPE,
	.bulk_out = UEA_BULK_DATA_PIPE,
	.isoc_in = UEA_ISO_DATA_PIPE,
};

static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
	struct usb_device *usb = interface_to_usbdev(intf);
	int ret;

	uea_enters(usb);
	uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) Rev (%#X): %s\n",
		le16_to_cpu(usb->descriptor.idVendor),
		le16_to_cpu(usb->descriptor.idProduct),
		le16_to_cpu(usb->descriptor.bcdDevice),
		chip_name[UEA_CHIP_VERSION(id)]);

	usb_reset_device(usb);

	if (UEA_IS_PREFIRM(id))
		return uea_load_firmware(usb, UEA_CHIP_VERSION(id));

	ret = usbatm_usb_probe(intf, id, &uea_usbatm_driver);
	if (ret == 0) {
		struct usbatm_data *usbatm = usb_get_intfdata(intf);
		struct uea_softc *sc = usbatm->driver_data;

		/* Ensure carrier is initialized to off as early as possible */
		UPDATE_ATM_SIGNAL(ATM_PHY_SIG_LOST);

		/* Only start the worker thread when all init is done */
		wake_up_process(sc->kthread);
	}

	return ret;
}

static void uea_disconnect(struct usb_interface *intf)
{
	struct usb_device *usb = interface_to_usbdev(intf);
	int ifnum = intf->altsetting->desc.bInterfaceNumber;
	uea_enters(usb);

	/* ADI930 has 2 interfaces and eagle 3 interfaces.
	 * Pre-firmware device has one interface
	 */
	if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) {
		mutex_lock(&uea_mutex);
		usbatm_usb_disconnect(intf);
		mutex_unlock(&uea_mutex);
		uea_info(usb, "ADSL device removed\n");
	}

	uea_leaves(usb);
}

/*
 * List of supported VID/PID
 */
static const struct usb_device_id uea_ids[] = {
	{USB_DEVICE(ANALOG_VID,	ADI930_PID_PREFIRM),
		.driver_info = ADI930 | PREFIRM},
	{USB_DEVICE(ANALOG_VID,	ADI930_PID_PSTFIRM),
		.driver_info = ADI930 | PSTFIRM},
	{USB_DEVICE(ANALOG_VID,	EAGLE_I_PID_PREFIRM),
		.driver_info = EAGLE_I | PREFIRM},
	{USB_DEVICE(ANALOG_VID,	EAGLE_I_PID_PSTFIRM),
		.driver_info = EAGLE_I | PSTFIRM},
	{USB_DEVICE(ANALOG_VID,	EAGLE_II_PID_PREFIRM),
		.driver_info = EAGLE_II | PREFIRM},
	{USB_DEVICE(ANALOG_VID,	EAGLE_II_PID_PSTFIRM),
		.driver_info = EAGLE_II | PSTFIRM},
	{USB_DEVICE(ANALOG_VID,	EAGLE_IIC_PID_PREFIRM),
		.driver_info = EAGLE_II | PREFIRM},
	{USB_DEVICE(ANALOG_VID,	EAGLE_IIC_PID_PSTFIRM),
		.driver_info = EAGLE_II | PSTFIRM},
	{USB_DEVICE(ANALOG_VID,	EAGLE_III_PID_PREFIRM),
		.driver_info = EAGLE_III | PREFIRM},
	{USB_DEVICE(ANALOG_VID,	EAGLE_III_PID_PSTFIRM),
		.driver_info = EAGLE_III | PSTFIRM},
	{USB_DEVICE(ANALOG_VID,	EAGLE_IV_PID_PREFIRM),
		.driver_info = EAGLE_IV | PREFIRM},
	{USB_DEVICE(ANALOG_VID,	EAGLE_IV_PID_PSTFIRM),
		.driver_info = EAGLE_IV | PSTFIRM},
	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_I_A_PID_PREFIRM),
		.driver_info = EAGLE_I | PREFIRM},
	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_I_A_PID_PSTFIRM),
		.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_I_B_PID_PREFIRM),
		.driver_info = EAGLE_I | PREFIRM},
	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_I_B_PID_PSTFIRM),
		.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_II_A_PID_PREFIRM),
		.driver_info = EAGLE_II | PREFIRM},
	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_II_A_PID_PSTFIRM),
		.driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_A},
	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_II_B_PID_PREFIRM),
		.driver_info = EAGLE_II | PREFIRM},
	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_II_B_PID_PSTFIRM),
		.driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_B},
	{USB_DEVICE(ELSA_VID,	ELSA_PID_PREFIRM),
		.driver_info = ADI930 | PREFIRM},
	{USB_DEVICE(ELSA_VID,	ELSA_PID_PSTFIRM),
		.driver_info = ADI930 | PSTFIRM},
	{USB_DEVICE(ELSA_VID,	ELSA_PID_A_PREFIRM),
		.driver_info = ADI930 | PREFIRM},
	{USB_DEVICE(ELSA_VID,	ELSA_PID_A_PSTFIRM),
		.driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_A},
	{USB_DEVICE(ELSA_VID,	ELSA_PID_B_PREFIRM),
		.driver_info = ADI930 | PREFIRM},
	{USB_DEVICE(ELSA_VID,	ELSA_PID_B_PSTFIRM),
		.driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_B},
	{USB_DEVICE(USR_VID,	MILLER_A_PID_PREFIRM),
		.driver_info = EAGLE_I | PREFIRM},
	{USB_DEVICE(USR_VID,	MILLER_A_PID_PSTFIRM),
		.driver_info = EAGLE_I | PSTFIRM  | AUTO_ANNEX_A},
	{USB_DEVICE(USR_VID,	MILLER_B_PID_PREFIRM),
		.driver_info = EAGLE_I | PREFIRM},
	{USB_DEVICE(USR_VID,	MILLER_B_PID_PSTFIRM),
		.driver_info = EAGLE_I | PSTFIRM  | AUTO_ANNEX_B},
	{USB_DEVICE(USR_VID,	HEINEKEN_A_PID_PREFIRM),
		.driver_info = EAGLE_I | PREFIRM},
	{USB_DEVICE(USR_VID,	HEINEKEN_A_PID_PSTFIRM),
		.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
	{USB_DEVICE(USR_VID,	HEINEKEN_B_PID_PREFIRM),
		.driver_info = EAGLE_I | PREFIRM},
	{USB_DEVICE(USR_VID,	HEINEKEN_B_PID_PSTFIRM),
		.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
	{}
};

/*
 * USB driver descriptor
 */
static struct usb_driver uea_driver = {
	.name = "ueagle-atm",
	.id_table = uea_ids,
	.probe = uea_probe,
	.disconnect = uea_disconnect,
};

MODULE_DEVICE_TABLE(usb, uea_ids);

module_usb_driver(uea_driver);

MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka");
MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver");
MODULE_LICENSE("Dual BSD/GPL");