linux/drivers/usb/atm/ueagle-atm.c
<<
>>
Prefs
   1// SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
   2/*
   3 * Copyright (c) 2003, 2004
   4 *      Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
   5 *
   6 * Copyright (c) 2005-2007 Matthieu Castet <castet.matthieu@free.fr>
   7 * Copyright (c) 2005-2007 Stanislaw Gruszka <stf_xl@wp.pl>
   8 *
   9 * HISTORY : some part of the code was base on ueagle 1.3 BSD driver,
  10 * Damien Bergamini agree to put his code under a DUAL GPL/BSD license.
  11 *
  12 * The rest of the code was was rewritten from scratch.
  13 */
  14
  15#include <linux/module.h>
  16#include <linux/moduleparam.h>
  17#include <linux/crc32.h>
  18#include <linux/usb.h>
  19#include <linux/firmware.h>
  20#include <linux/ctype.h>
  21#include <linux/sched.h>
  22#include <linux/kthread.h>
  23#include <linux/mutex.h>
  24#include <linux/freezer.h>
  25#include <linux/slab.h>
  26#include <linux/kernel.h>
  27
  28#include <asm/unaligned.h>
  29
  30#include "usbatm.h"
  31
  32#define EAGLEUSBVERSION "ueagle 1.4"
  33
  34
  35/*
  36 * Debug macros
  37 */
  38#define uea_dbg(usb_dev, format, args...)       \
  39        do { \
  40                if (debug >= 1) \
  41                        dev_dbg(&(usb_dev)->dev, \
  42                                "[ueagle-atm dbg] %s: " format, \
  43                                        __func__, ##args); \
  44        } while (0)
  45
  46#define uea_vdbg(usb_dev, format, args...)      \
  47        do { \
  48                if (debug >= 2) \
  49                        dev_dbg(&(usb_dev)->dev, \
  50                                "[ueagle-atm vdbg]  " format, ##args); \
  51        } while (0)
  52
  53#define uea_enters(usb_dev) \
  54        uea_vdbg(usb_dev, "entering %s\n" , __func__)
  55
  56#define uea_leaves(usb_dev) \
  57        uea_vdbg(usb_dev, "leaving  %s\n" , __func__)
  58
  59#define uea_err(usb_dev, format, args...) \
  60        dev_err(&(usb_dev)->dev , "[UEAGLE-ATM] " format , ##args)
  61
  62#define uea_warn(usb_dev, format, args...) \
  63        dev_warn(&(usb_dev)->dev , "[Ueagle-atm] " format, ##args)
  64
  65#define uea_info(usb_dev, format, args...) \
  66        dev_info(&(usb_dev)->dev , "[ueagle-atm] " format, ##args)
  67
  68struct intr_pkt;
  69
  70/* cmv's from firmware */
  71struct uea_cmvs_v1 {
  72        u32 address;
  73        u16 offset;
  74        u32 data;
  75} __packed;
  76
  77struct uea_cmvs_v2 {
  78        u32 group;
  79        u32 address;
  80        u32 offset;
  81        u32 data;
  82} __packed;
  83
  84/* information about currently processed cmv */
  85struct cmv_dsc_e1 {
  86        u8 function;
  87        u16 idx;
  88        u32 address;
  89        u16 offset;
  90};
  91
  92struct cmv_dsc_e4 {
  93        u16 function;
  94        u16 offset;
  95        u16 address;
  96        u16 group;
  97};
  98
  99union cmv_dsc {
 100        struct cmv_dsc_e1 e1;
 101        struct cmv_dsc_e4 e4;
 102};
 103
 104struct uea_softc {
 105        struct usb_device *usb_dev;
 106        struct usbatm_data *usbatm;
 107
 108        int modem_index;
 109        unsigned int driver_info;
 110        int annex;
 111#define ANNEXA 0
 112#define ANNEXB 1
 113
 114        int booting;
 115        int reset;
 116
 117        wait_queue_head_t sync_q;
 118
 119        struct task_struct *kthread;
 120        u32 data;
 121        u32 data1;
 122
 123        int cmv_ack;
 124        union cmv_dsc cmv_dsc;
 125
 126        struct work_struct task;
 127        u16 pageno;
 128        u16 ovl;
 129
 130        const struct firmware *dsp_firm;
 131        struct urb *urb_int;
 132
 133        void (*dispatch_cmv)(struct uea_softc *, struct intr_pkt *);
 134        void (*schedule_load_page)(struct uea_softc *, struct intr_pkt *);
 135        int (*stat)(struct uea_softc *);
 136        int (*send_cmvs)(struct uea_softc *);
 137
 138        /* keep in sync with eaglectl */
 139        struct uea_stats {
 140                struct {
 141                        u32 state;
 142                        u32 flags;
 143                        u32 mflags;
 144                        u32 vidcpe;
 145                        u32 vidco;
 146                        u32 dsrate;
 147                        u32 usrate;
 148                        u32 dsunc;
 149                        u32 usunc;
 150                        u32 dscorr;
 151                        u32 uscorr;
 152                        u32 txflow;
 153                        u32 rxflow;
 154                        u32 usattenuation;
 155                        u32 dsattenuation;
 156                        u32 dsmargin;
 157                        u32 usmargin;
 158                        u32 firmid;
 159                } phy;
 160        } stats;
 161};
 162
 163/*
 164 * Elsa IDs
 165 */
 166#define ELSA_VID                0x05CC
 167#define ELSA_PID_PSTFIRM        0x3350
 168#define ELSA_PID_PREFIRM        0x3351
 169
 170#define ELSA_PID_A_PREFIRM      0x3352
 171#define ELSA_PID_A_PSTFIRM      0x3353
 172#define ELSA_PID_B_PREFIRM      0x3362
 173#define ELSA_PID_B_PSTFIRM      0x3363
 174
 175/*
 176 * Devolo IDs : pots if (pid & 0x10)
 177 */
 178#define DEVOLO_VID                      0x1039
 179#define DEVOLO_EAGLE_I_A_PID_PSTFIRM    0x2110
 180#define DEVOLO_EAGLE_I_A_PID_PREFIRM    0x2111
 181
 182#define DEVOLO_EAGLE_I_B_PID_PSTFIRM    0x2100
 183#define DEVOLO_EAGLE_I_B_PID_PREFIRM    0x2101
 184
 185#define DEVOLO_EAGLE_II_A_PID_PSTFIRM   0x2130
 186#define DEVOLO_EAGLE_II_A_PID_PREFIRM   0x2131
 187
 188#define DEVOLO_EAGLE_II_B_PID_PSTFIRM   0x2120
 189#define DEVOLO_EAGLE_II_B_PID_PREFIRM   0x2121
 190
 191/*
 192 * Reference design USB IDs
 193 */
 194#define ANALOG_VID              0x1110
 195#define ADI930_PID_PREFIRM      0x9001
 196#define ADI930_PID_PSTFIRM      0x9000
 197
 198#define EAGLE_I_PID_PREFIRM     0x9010  /* Eagle I */
 199#define EAGLE_I_PID_PSTFIRM     0x900F  /* Eagle I */
 200
 201#define EAGLE_IIC_PID_PREFIRM   0x9024  /* Eagle IIC */
 202#define EAGLE_IIC_PID_PSTFIRM   0x9023  /* Eagle IIC */
 203
 204#define EAGLE_II_PID_PREFIRM    0x9022  /* Eagle II */
 205#define EAGLE_II_PID_PSTFIRM    0x9021  /* Eagle II */
 206
 207#define EAGLE_III_PID_PREFIRM   0x9032  /* Eagle III */
 208#define EAGLE_III_PID_PSTFIRM   0x9031  /* Eagle III */
 209
 210#define EAGLE_IV_PID_PREFIRM    0x9042  /* Eagle IV */
 211#define EAGLE_IV_PID_PSTFIRM    0x9041  /* Eagle IV */
 212
 213/*
 214 * USR USB IDs
 215 */
 216#define USR_VID                 0x0BAF
 217#define MILLER_A_PID_PREFIRM    0x00F2
 218#define MILLER_A_PID_PSTFIRM    0x00F1
 219#define MILLER_B_PID_PREFIRM    0x00FA
 220#define MILLER_B_PID_PSTFIRM    0x00F9
 221#define HEINEKEN_A_PID_PREFIRM  0x00F6
 222#define HEINEKEN_A_PID_PSTFIRM  0x00F5
 223#define HEINEKEN_B_PID_PREFIRM  0x00F8
 224#define HEINEKEN_B_PID_PSTFIRM  0x00F7
 225
 226#define PREFIRM 0
 227#define PSTFIRM (1<<7)
 228#define AUTO_ANNEX_A (1<<8)
 229#define AUTO_ANNEX_B (1<<9)
 230
 231enum {
 232        ADI930 = 0,
 233        EAGLE_I,
 234        EAGLE_II,
 235        EAGLE_III,
 236        EAGLE_IV
 237};
 238
 239/* macros for both struct usb_device_id and struct uea_softc */
 240#define UEA_IS_PREFIRM(x) \
 241        (!((x)->driver_info & PSTFIRM))
 242#define UEA_CHIP_VERSION(x) \
 243        ((x)->driver_info & 0xf)
 244
 245#define IS_ISDN(x) \
 246        ((x)->annex & ANNEXB)
 247
 248#define INS_TO_USBDEV(ins) (ins->usb_dev)
 249
 250#define GET_STATUS(data) \
 251        ((data >> 8) & 0xf)
 252
 253#define IS_OPERATIONAL(sc) \
 254        ((UEA_CHIP_VERSION(sc) != EAGLE_IV) ? \
 255        (GET_STATUS(sc->stats.phy.state) == 2) : \
 256        (sc->stats.phy.state == 7))
 257
 258/*
 259 * Set of macros to handle unaligned data in the firmware blob.
 260 * The FW_GET_BYTE() macro is provided only for consistency.
 261 */
 262
 263#define FW_GET_BYTE(p) (*((__u8 *) (p)))
 264
 265#define FW_DIR "ueagle-atm/"
 266#define EAGLE_FIRMWARE FW_DIR "eagle.fw"
 267#define ADI930_FIRMWARE FW_DIR "adi930.fw"
 268#define EAGLE_I_FIRMWARE FW_DIR "eagleI.fw"
 269#define EAGLE_II_FIRMWARE FW_DIR "eagleII.fw"
 270#define EAGLE_III_FIRMWARE FW_DIR "eagleIII.fw"
 271#define EAGLE_IV_FIRMWARE FW_DIR "eagleIV.fw"
 272
 273#define DSP4I_FIRMWARE FW_DIR "DSP4i.bin"
 274#define DSP4P_FIRMWARE FW_DIR "DSP4p.bin"
 275#define DSP9I_FIRMWARE FW_DIR "DSP9i.bin"
 276#define DSP9P_FIRMWARE FW_DIR "DSP9p.bin"
 277#define DSPEI_FIRMWARE FW_DIR "DSPei.bin"
 278#define DSPEP_FIRMWARE FW_DIR "DSPep.bin"
 279#define FPGA930_FIRMWARE FW_DIR "930-fpga.bin"
 280
 281#define CMV4P_FIRMWARE FW_DIR "CMV4p.bin"
 282#define CMV4PV2_FIRMWARE FW_DIR "CMV4p.bin.v2"
 283#define CMV4I_FIRMWARE FW_DIR "CMV4i.bin"
 284#define CMV4IV2_FIRMWARE FW_DIR "CMV4i.bin.v2"
 285#define CMV9P_FIRMWARE FW_DIR "CMV9p.bin"
 286#define CMV9PV2_FIRMWARE FW_DIR "CMV9p.bin.v2"
 287#define CMV9I_FIRMWARE FW_DIR "CMV9i.bin"
 288#define CMV9IV2_FIRMWARE FW_DIR "CMV9i.bin.v2"
 289#define CMVEP_FIRMWARE FW_DIR "CMVep.bin"
 290#define CMVEPV2_FIRMWARE FW_DIR "CMVep.bin.v2"
 291#define CMVEI_FIRMWARE FW_DIR "CMVei.bin"
 292#define CMVEIV2_FIRMWARE FW_DIR "CMVei.bin.v2"
 293
 294#define UEA_FW_NAME_MAX 30
 295#define NB_MODEM 4
 296
 297#define BULK_TIMEOUT 300
 298#define CTRL_TIMEOUT 1000
 299
 300#define ACK_TIMEOUT msecs_to_jiffies(3000)
 301
 302#define UEA_INTR_IFACE_NO       0
 303#define UEA_US_IFACE_NO         1
 304#define UEA_DS_IFACE_NO         2
 305
 306#define FASTEST_ISO_INTF        8
 307
 308#define UEA_BULK_DATA_PIPE      0x02
 309#define UEA_IDMA_PIPE           0x04
 310#define UEA_INTR_PIPE           0x04
 311#define UEA_ISO_DATA_PIPE       0x08
 312
 313#define UEA_E1_SET_BLOCK        0x0001
 314#define UEA_E4_SET_BLOCK        0x002c
 315#define UEA_SET_MODE            0x0003
 316#define UEA_SET_2183_DATA       0x0004
 317#define UEA_SET_TIMEOUT         0x0011
 318
 319#define UEA_LOOPBACK_OFF        0x0002
 320#define UEA_LOOPBACK_ON         0x0003
 321#define UEA_BOOT_IDMA           0x0006
 322#define UEA_START_RESET         0x0007
 323#define UEA_END_RESET           0x0008
 324
 325#define UEA_SWAP_MAILBOX        (0x3fcd | 0x4000)
 326#define UEA_MPTX_START          (0x3fce | 0x4000)
 327#define UEA_MPTX_MAILBOX        (0x3fd6 | 0x4000)
 328#define UEA_MPRX_MAILBOX        (0x3fdf | 0x4000)
 329
 330/* block information in eagle4 dsp firmware  */
 331struct block_index {
 332        __le32 PageOffset;
 333        __le32 NotLastBlock;
 334        __le32 dummy;
 335        __le32 PageSize;
 336        __le32 PageAddress;
 337        __le16 dummy1;
 338        __le16 PageNumber;
 339} __packed;
 340
 341#define E4_IS_BOOT_PAGE(PageSize) ((le32_to_cpu(PageSize)) & 0x80000000)
 342#define E4_PAGE_BYTES(PageSize) ((le32_to_cpu(PageSize) & 0x7fffffff) * 4)
 343
 344#define E4_L1_STRING_HEADER 0x10
 345#define E4_MAX_PAGE_NUMBER 0x58
 346#define E4_NO_SWAPPAGE_HEADERS 0x31
 347
 348/* l1_code is eagle4 dsp firmware format */
 349struct l1_code {
 350        u8 string_header[E4_L1_STRING_HEADER];
 351        u8 page_number_to_block_index[E4_MAX_PAGE_NUMBER];
 352        struct block_index page_header[E4_NO_SWAPPAGE_HEADERS];
 353        u8 code[];
 354} __packed;
 355
 356/* structures describing a block within a DSP page */
 357struct block_info_e1 {
 358        __le16 wHdr;
 359        __le16 wAddress;
 360        __le16 wSize;
 361        __le16 wOvlOffset;
 362        __le16 wOvl;            /* overlay */
 363        __le16 wLast;
 364} __packed;
 365#define E1_BLOCK_INFO_SIZE 12
 366
 367struct block_info_e4 {
 368        __be16 wHdr;
 369        __u8 bBootPage;
 370        __u8 bPageNumber;
 371        __be32 dwSize;
 372        __be32 dwAddress;
 373        __be16 wReserved;
 374} __packed;
 375#define E4_BLOCK_INFO_SIZE 14
 376
 377#define UEA_BIHDR 0xabcd
 378#define UEA_RESERVED 0xffff
 379
 380/* constants describing cmv type */
 381#define E1_PREAMBLE 0x535c
 382#define E1_MODEMTOHOST 0x01
 383#define E1_HOSTTOMODEM 0x10
 384
 385#define E1_MEMACCESS 0x1
 386#define E1_ADSLDIRECTIVE 0x7
 387#define E1_FUNCTION_TYPE(f) ((f) >> 4)
 388#define E1_FUNCTION_SUBTYPE(f) ((f) & 0x0f)
 389
 390#define E4_MEMACCESS 0
 391#define E4_ADSLDIRECTIVE 0xf
 392#define E4_FUNCTION_TYPE(f) ((f) >> 8)
 393#define E4_FUNCTION_SIZE(f) ((f) & 0x0f)
 394#define E4_FUNCTION_SUBTYPE(f) (((f) >> 4) & 0x0f)
 395
 396/* for MEMACCESS */
 397#define E1_REQUESTREAD  0x0
 398#define E1_REQUESTWRITE 0x1
 399#define E1_REPLYREAD    0x2
 400#define E1_REPLYWRITE   0x3
 401
 402#define E4_REQUESTREAD  0x0
 403#define E4_REQUESTWRITE 0x4
 404#define E4_REPLYREAD    (E4_REQUESTREAD | 1)
 405#define E4_REPLYWRITE   (E4_REQUESTWRITE | 1)
 406
 407/* for ADSLDIRECTIVE */
 408#define E1_KERNELREADY 0x0
 409#define E1_MODEMREADY  0x1
 410
 411#define E4_KERNELREADY 0x0
 412#define E4_MODEMREADY  0x1
 413
 414#define E1_MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf))
 415#define E4_MAKEFUNCTION(t, st, s) (((t) & 0xf) << 8 | \
 416        ((st) & 0xf) << 4 | ((s) & 0xf))
 417
 418#define E1_MAKESA(a, b, c, d)                                           \
 419        (((c) & 0xff) << 24 |                                           \
 420         ((d) & 0xff) << 16 |                                           \
 421         ((a) & 0xff) << 8  |                                           \
 422         ((b) & 0xff))
 423
 424#define E1_GETSA1(a) ((a >> 8) & 0xff)
 425#define E1_GETSA2(a) (a & 0xff)
 426#define E1_GETSA3(a) ((a >> 24) & 0xff)
 427#define E1_GETSA4(a) ((a >> 16) & 0xff)
 428
 429#define E1_SA_CNTL E1_MAKESA('C', 'N', 'T', 'L')
 430#define E1_SA_DIAG E1_MAKESA('D', 'I', 'A', 'G')
 431#define E1_SA_INFO E1_MAKESA('I', 'N', 'F', 'O')
 432#define E1_SA_OPTN E1_MAKESA('O', 'P', 'T', 'N')
 433#define E1_SA_RATE E1_MAKESA('R', 'A', 'T', 'E')
 434#define E1_SA_STAT E1_MAKESA('S', 'T', 'A', 'T')
 435
 436#define E4_SA_CNTL 1
 437#define E4_SA_STAT 2
 438#define E4_SA_INFO 3
 439#define E4_SA_TEST 4
 440#define E4_SA_OPTN 5
 441#define E4_SA_RATE 6
 442#define E4_SA_DIAG 7
 443#define E4_SA_CNFG 8
 444
 445/* structures representing a CMV (Configuration and Management Variable) */
 446struct cmv_e1 {
 447        __le16 wPreamble;
 448        __u8 bDirection;
 449        __u8 bFunction;
 450        __le16 wIndex;
 451        __le32 dwSymbolicAddress;
 452        __le16 wOffsetAddress;
 453        __le32 dwData;
 454} __packed;
 455
 456struct cmv_e4 {
 457        __be16 wGroup;
 458        __be16 wFunction;
 459        __be16 wOffset;
 460        __be16 wAddress;
 461        __be32 dwData[6];
 462} __packed;
 463
 464/* structures representing swap information */
 465struct swap_info_e1 {
 466        __u8 bSwapPageNo;
 467        __u8 bOvl;              /* overlay */
 468} __packed;
 469
 470struct swap_info_e4 {
 471        __u8 bSwapPageNo;
 472} __packed;
 473
 474/* structures representing interrupt data */
 475#define e1_bSwapPageNo  u.e1.s1.swapinfo.bSwapPageNo
 476#define e1_bOvl         u.e1.s1.swapinfo.bOvl
 477#define e4_bSwapPageNo  u.e4.s1.swapinfo.bSwapPageNo
 478
 479#define INT_LOADSWAPPAGE 0x0001
 480#define INT_INCOMINGCMV  0x0002
 481
 482union intr_data_e1 {
 483        struct {
 484                struct swap_info_e1 swapinfo;
 485                __le16 wDataSize;
 486        } __packed s1;
 487        struct {
 488                struct cmv_e1 cmv;
 489                __le16 wDataSize;
 490        } __packed s2;
 491} __packed;
 492
 493union intr_data_e4 {
 494        struct {
 495                struct swap_info_e4 swapinfo;
 496                __le16 wDataSize;
 497        } __packed s1;
 498        struct {
 499                struct cmv_e4 cmv;
 500                __le16 wDataSize;
 501        } __packed s2;
 502} __packed;
 503
 504struct intr_pkt {
 505        __u8 bType;
 506        __u8 bNotification;
 507        __le16 wValue;
 508        __le16 wIndex;
 509        __le16 wLength;
 510        __le16 wInterrupt;
 511        union {
 512                union intr_data_e1 e1;
 513                union intr_data_e4 e4;
 514        } u;
 515} __packed;
 516
 517#define E1_INTR_PKT_SIZE 28
 518#define E4_INTR_PKT_SIZE 64
 519
 520static struct usb_driver uea_driver;
 521static DEFINE_MUTEX(uea_mutex);
 522static const char * const chip_name[] = {
 523        "ADI930", "Eagle I", "Eagle II", "Eagle III", "Eagle IV"};
 524
 525static int modem_index;
 526static unsigned int debug;
 527static unsigned int altsetting[NB_MODEM] = {
 528                                [0 ... (NB_MODEM - 1)] = FASTEST_ISO_INTF};
 529static bool sync_wait[NB_MODEM];
 530static char *cmv_file[NB_MODEM];
 531static int annex[NB_MODEM];
 532
 533module_param(debug, uint, 0644);
 534MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)");
 535module_param_array(altsetting, uint, NULL, 0644);
 536MODULE_PARM_DESC(altsetting, "alternate setting for incoming traffic: 0=bulk, "
 537                             "1=isoc slowest, ... , 8=isoc fastest (default)");
 538module_param_array(sync_wait, bool, NULL, 0644);
 539MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM");
 540module_param_array(cmv_file, charp, NULL, 0644);
 541MODULE_PARM_DESC(cmv_file,
 542                "file name with configuration and management variables");
 543module_param_array(annex, uint, NULL, 0644);
 544MODULE_PARM_DESC(annex,
 545                "manually set annex a/b (0=auto, 1=annex a, 2=annex b)");
 546
 547#define uea_wait(sc, cond, timeo) \
 548({ \
 549        int _r = wait_event_interruptible_timeout(sc->sync_q, \
 550                        (cond) || kthread_should_stop(), timeo); \
 551        if (kthread_should_stop()) \
 552                _r = -ENODEV; \
 553        _r; \
 554})
 555
 556#define UPDATE_ATM_STAT(type, val) \
 557        do { \
 558                if (sc->usbatm->atm_dev) \
 559                        sc->usbatm->atm_dev->type = val; \
 560        } while (0)
 561
 562#define UPDATE_ATM_SIGNAL(val) \
 563        do { \
 564                if (sc->usbatm->atm_dev) \
 565                        atm_dev_signal_change(sc->usbatm->atm_dev, val); \
 566        } while (0)
 567
 568
 569/* Firmware loading */
 570#define LOAD_INTERNAL     0xA0
 571#define F8051_USBCS       0x7f92
 572
 573/**
 574 * uea_send_modem_cmd - Send a command for pre-firmware devices.
 575 */
 576static int uea_send_modem_cmd(struct usb_device *usb,
 577                              u16 addr, u16 size, const u8 *buff)
 578{
 579        int ret = -ENOMEM;
 580        u8 *xfer_buff;
 581
 582        xfer_buff = kmemdup(buff, size, GFP_KERNEL);
 583        if (xfer_buff) {
 584                ret = usb_control_msg(usb,
 585                                      usb_sndctrlpipe(usb, 0),
 586                                      LOAD_INTERNAL,
 587                                      USB_DIR_OUT | USB_TYPE_VENDOR |
 588                                      USB_RECIP_DEVICE, addr, 0, xfer_buff,
 589                                      size, CTRL_TIMEOUT);
 590                kfree(xfer_buff);
 591        }
 592
 593        if (ret < 0)
 594                return ret;
 595
 596        return (ret == size) ? 0 : -EIO;
 597}
 598
 599static void uea_upload_pre_firmware(const struct firmware *fw_entry,
 600                                                                void *context)
 601{
 602        struct usb_device *usb = context;
 603        const u8 *pfw;
 604        u8 value;
 605        u32 crc = 0;
 606        int ret, size;
 607
 608        uea_enters(usb);
 609        if (!fw_entry) {
 610                uea_err(usb, "firmware is not available\n");
 611                goto err;
 612        }
 613
 614        pfw = fw_entry->data;
 615        size = fw_entry->size;
 616        if (size < 4)
 617                goto err_fw_corrupted;
 618
 619        crc = get_unaligned_le32(pfw);
 620        pfw += 4;
 621        size -= 4;
 622        if (crc32_be(0, pfw, size) != crc)
 623                goto err_fw_corrupted;
 624
 625        /*
 626         * Start to upload firmware : send reset
 627         */
 628        value = 1;
 629        ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value);
 630
 631        if (ret < 0) {
 632                uea_err(usb, "modem reset failed with error %d\n", ret);
 633                goto err;
 634        }
 635
 636        while (size > 3) {
 637                u8 len = FW_GET_BYTE(pfw);
 638                u16 add = get_unaligned_le16(pfw + 1);
 639
 640                size -= len + 3;
 641                if (size < 0)
 642                        goto err_fw_corrupted;
 643
 644                ret = uea_send_modem_cmd(usb, add, len, pfw + 3);
 645                if (ret < 0) {
 646                        uea_err(usb, "uploading firmware data failed "
 647                                        "with error %d\n", ret);
 648                        goto err;
 649                }
 650                pfw += len + 3;
 651        }
 652
 653        if (size != 0)
 654                goto err_fw_corrupted;
 655
 656        /*
 657         * Tell the modem we finish : de-assert reset
 658         */
 659        value = 0;
 660        ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value);
 661        if (ret < 0)
 662                uea_err(usb, "modem de-assert failed with error %d\n", ret);
 663        else
 664                uea_info(usb, "firmware uploaded\n");
 665
 666        goto err;
 667
 668err_fw_corrupted:
 669        uea_err(usb, "firmware is corrupted\n");
 670err:
 671        release_firmware(fw_entry);
 672        uea_leaves(usb);
 673}
 674
 675/**
 676 * uea_load_firmware - Load usb firmware for pre-firmware devices.
 677 */
 678static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
 679{
 680        int ret;
 681        char *fw_name = EAGLE_FIRMWARE;
 682
 683        uea_enters(usb);
 684        uea_info(usb, "pre-firmware device, uploading firmware\n");
 685
 686        switch (ver) {
 687        case ADI930:
 688                fw_name = ADI930_FIRMWARE;
 689                break;
 690        case EAGLE_I:
 691                fw_name = EAGLE_I_FIRMWARE;
 692                break;
 693        case EAGLE_II:
 694                fw_name = EAGLE_II_FIRMWARE;
 695                break;
 696        case EAGLE_III:
 697                fw_name = EAGLE_III_FIRMWARE;
 698                break;
 699        case EAGLE_IV:
 700                fw_name = EAGLE_IV_FIRMWARE;
 701                break;
 702        }
 703
 704        ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev,
 705                                        GFP_KERNEL, usb,
 706                                        uea_upload_pre_firmware);
 707        if (ret)
 708                uea_err(usb, "firmware %s is not available\n", fw_name);
 709        else
 710                uea_info(usb, "loading firmware %s\n", fw_name);
 711
 712        uea_leaves(usb);
 713        return ret;
 714}
 715
 716/* modem management : dsp firmware, send/read CMV, monitoring statistic
 717 */
 718
 719/*
 720 * Make sure that the DSP code provided is safe to use.
 721 */
 722static int check_dsp_e1(const u8 *dsp, unsigned int len)
 723{
 724        u8 pagecount, blockcount;
 725        u16 blocksize;
 726        u32 pageoffset;
 727        unsigned int i, j, p, pp;
 728
 729        pagecount = FW_GET_BYTE(dsp);
 730        p = 1;
 731
 732        /* enough space for page offsets? */
 733        if (p + 4 * pagecount > len)
 734                return 1;
 735
 736        for (i = 0; i < pagecount; i++) {
 737
 738                pageoffset = get_unaligned_le32(dsp + p);
 739                p += 4;
 740
 741                if (pageoffset == 0)
 742                        continue;
 743
 744                /* enough space for blockcount? */
 745                if (pageoffset >= len)
 746                        return 1;
 747
 748                pp = pageoffset;
 749                blockcount = FW_GET_BYTE(dsp + pp);
 750                pp += 1;
 751
 752                for (j = 0; j < blockcount; j++) {
 753
 754                        /* enough space for block header? */
 755                        if (pp + 4 > len)
 756                                return 1;
 757
 758                        pp += 2;        /* skip blockaddr */
 759                        blocksize = get_unaligned_le16(dsp + pp);
 760                        pp += 2;
 761
 762                        /* enough space for block data? */
 763                        if (pp + blocksize > len)
 764                                return 1;
 765
 766                        pp += blocksize;
 767                }
 768        }
 769
 770        return 0;
 771}
 772
 773static int check_dsp_e4(const u8 *dsp, int len)
 774{
 775        int i;
 776        struct l1_code *p = (struct l1_code *) dsp;
 777        unsigned int sum = p->code - dsp;
 778
 779        if (len < sum)
 780                return 1;
 781
 782        if (strcmp("STRATIPHY ANEXA", p->string_header) != 0 &&
 783            strcmp("STRATIPHY ANEXB", p->string_header) != 0)
 784                return 1;
 785
 786        for (i = 0; i < E4_MAX_PAGE_NUMBER; i++) {
 787                struct block_index *blockidx;
 788                u8 blockno = p->page_number_to_block_index[i];
 789                if (blockno >= E4_NO_SWAPPAGE_HEADERS)
 790                        continue;
 791
 792                do {
 793                        u64 l;
 794
 795                        if (blockno >= E4_NO_SWAPPAGE_HEADERS)
 796                                return 1;
 797
 798                        blockidx = &p->page_header[blockno++];
 799                        if ((u8 *)(blockidx + 1) - dsp  >= len)
 800                                return 1;
 801
 802                        if (le16_to_cpu(blockidx->PageNumber) != i)
 803                                return 1;
 804
 805                        l = E4_PAGE_BYTES(blockidx->PageSize);
 806                        sum += l;
 807                        l += le32_to_cpu(blockidx->PageOffset);
 808                        if (l > len)
 809                                return 1;
 810
 811                /* zero is zero regardless endianes */
 812                } while (blockidx->NotLastBlock);
 813        }
 814
 815        return (sum == len) ? 0 : 1;
 816}
 817
 818/*
 819 * send data to the idma pipe
 820 * */
 821static int uea_idma_write(struct uea_softc *sc, const void *data, u32 size)
 822{
 823        int ret = -ENOMEM;
 824        u8 *xfer_buff;
 825        int bytes_read;
 826
 827        xfer_buff = kmemdup(data, size, GFP_KERNEL);
 828        if (!xfer_buff) {
 829                uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
 830                return ret;
 831        }
 832
 833        ret = usb_bulk_msg(sc->usb_dev,
 834                         usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
 835                         xfer_buff, size, &bytes_read, BULK_TIMEOUT);
 836
 837        kfree(xfer_buff);
 838        if (ret < 0)
 839                return ret;
 840        if (size != bytes_read) {
 841                uea_err(INS_TO_USBDEV(sc), "size != bytes_read %d %d\n", size,
 842                       bytes_read);
 843                return -EIO;
 844        }
 845
 846        return 0;
 847}
 848
 849static int request_dsp(struct uea_softc *sc)
 850{
 851        int ret;
 852        char *dsp_name;
 853
 854        if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
 855                if (IS_ISDN(sc))
 856                        dsp_name = DSP4I_FIRMWARE;
 857                else
 858                        dsp_name = DSP4P_FIRMWARE;
 859        } else if (UEA_CHIP_VERSION(sc) == ADI930) {
 860                if (IS_ISDN(sc))
 861                        dsp_name = DSP9I_FIRMWARE;
 862                else
 863                        dsp_name = DSP9P_FIRMWARE;
 864        } else {
 865                if (IS_ISDN(sc))
 866                        dsp_name = DSPEI_FIRMWARE;
 867                else
 868                        dsp_name = DSPEP_FIRMWARE;
 869        }
 870
 871        ret = request_firmware(&sc->dsp_firm, dsp_name, &sc->usb_dev->dev);
 872        if (ret < 0) {
 873                uea_err(INS_TO_USBDEV(sc),
 874                       "requesting firmware %s failed with error %d\n",
 875                        dsp_name, ret);
 876                return ret;
 877        }
 878
 879        if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
 880                ret = check_dsp_e4(sc->dsp_firm->data, sc->dsp_firm->size);
 881        else
 882                ret = check_dsp_e1(sc->dsp_firm->data, sc->dsp_firm->size);
 883
 884        if (ret) {
 885                uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
 886                       dsp_name);
 887                release_firmware(sc->dsp_firm);
 888                sc->dsp_firm = NULL;
 889                return -EILSEQ;
 890        }
 891
 892        return 0;
 893}
 894
 895/*
 896 * The uea_load_page() function must be called within a process context
 897 */
 898static void uea_load_page_e1(struct work_struct *work)
 899{
 900        struct uea_softc *sc = container_of(work, struct uea_softc, task);
 901        u16 pageno = sc->pageno;
 902        u16 ovl = sc->ovl;
 903        struct block_info_e1 bi;
 904
 905        const u8 *p;
 906        u8 pagecount, blockcount;
 907        u16 blockaddr, blocksize;
 908        u32 pageoffset;
 909        int i;
 910
 911        /* reload firmware when reboot start and it's loaded already */
 912        if (ovl == 0 && pageno == 0) {
 913                release_firmware(sc->dsp_firm);
 914                sc->dsp_firm = NULL;
 915        }
 916
 917        if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
 918                return;
 919
 920        p = sc->dsp_firm->data;
 921        pagecount = FW_GET_BYTE(p);
 922        p += 1;
 923
 924        if (pageno >= pagecount)
 925                goto bad1;
 926
 927        p += 4 * pageno;
 928        pageoffset = get_unaligned_le32(p);
 929
 930        if (pageoffset == 0)
 931                goto bad1;
 932
 933        p = sc->dsp_firm->data + pageoffset;
 934        blockcount = FW_GET_BYTE(p);
 935        p += 1;
 936
 937        uea_dbg(INS_TO_USBDEV(sc),
 938               "sending %u blocks for DSP page %u\n", blockcount, pageno);
 939
 940        bi.wHdr = cpu_to_le16(UEA_BIHDR);
 941        bi.wOvl = cpu_to_le16(ovl);
 942        bi.wOvlOffset = cpu_to_le16(ovl | 0x8000);
 943
 944        for (i = 0; i < blockcount; i++) {
 945                blockaddr = get_unaligned_le16(p);
 946                p += 2;
 947
 948                blocksize = get_unaligned_le16(p);
 949                p += 2;
 950
 951                bi.wSize = cpu_to_le16(blocksize);
 952                bi.wAddress = cpu_to_le16(blockaddr);
 953                bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0);
 954
 955                /* send block info through the IDMA pipe */
 956                if (uea_idma_write(sc, &bi, E1_BLOCK_INFO_SIZE))
 957                        goto bad2;
 958
 959                /* send block data through the IDMA pipe */
 960                if (uea_idma_write(sc, p, blocksize))
 961                        goto bad2;
 962
 963                p += blocksize;
 964        }
 965
 966        return;
 967
 968bad2:
 969        uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i);
 970        return;
 971bad1:
 972        uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n", pageno);
 973}
 974
 975static void __uea_load_page_e4(struct uea_softc *sc, u8 pageno, int boot)
 976{
 977        struct block_info_e4 bi;
 978        struct block_index *blockidx;
 979        struct l1_code *p = (struct l1_code *) sc->dsp_firm->data;
 980        u8 blockno = p->page_number_to_block_index[pageno];
 981
 982        bi.wHdr = cpu_to_be16(UEA_BIHDR);
 983        bi.bBootPage = boot;
 984        bi.bPageNumber = pageno;
 985        bi.wReserved = cpu_to_be16(UEA_RESERVED);
 986
 987        do {
 988                const u8 *blockoffset;
 989                unsigned int blocksize;
 990
 991                blockidx = &p->page_header[blockno];
 992                blocksize = E4_PAGE_BYTES(blockidx->PageSize);
 993                blockoffset = sc->dsp_firm->data + le32_to_cpu(
 994                                                        blockidx->PageOffset);
 995
 996                bi.dwSize = cpu_to_be32(blocksize);
 997                bi.dwAddress = cpu_to_be32(le32_to_cpu(blockidx->PageAddress));
 998
 999                uea_dbg(INS_TO_USBDEV(sc),
1000                        "sending block %u for DSP page "
1001                        "%u size %u address %x\n",
1002                        blockno, pageno, blocksize,
1003                        le32_to_cpu(blockidx->PageAddress));
1004
1005                /* send block info through the IDMA pipe */
1006                if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
1007                        goto bad;
1008
1009                /* send block data through the IDMA pipe */
1010                if (uea_idma_write(sc, blockoffset, blocksize))
1011                        goto bad;
1012
1013                blockno++;
1014        } while (blockidx->NotLastBlock);
1015
1016        return;
1017
1018bad:
1019        uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", blockno);
1020        return;
1021}
1022
1023static void uea_load_page_e4(struct work_struct *work)
1024{
1025        struct uea_softc *sc = container_of(work, struct uea_softc, task);
1026        u8 pageno = sc->pageno;
1027        int i;
1028        struct block_info_e4 bi;
1029        struct l1_code *p;
1030
1031        uea_dbg(INS_TO_USBDEV(sc), "sending DSP page %u\n", pageno);
1032
1033        /* reload firmware when reboot start and it's loaded already */
1034        if (pageno == 0) {
1035                release_firmware(sc->dsp_firm);
1036                sc->dsp_firm = NULL;
1037        }
1038
1039        if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
1040                return;
1041
1042        p = (struct l1_code *) sc->dsp_firm->data;
1043        if (pageno >= le16_to_cpu(p->page_header[0].PageNumber)) {
1044                uea_err(INS_TO_USBDEV(sc), "invalid DSP "
1045                                                "page %u requested\n", pageno);
1046                return;
1047        }
1048
1049        if (pageno != 0) {
1050                __uea_load_page_e4(sc, pageno, 0);
1051                return;
1052        }
1053
1054        uea_dbg(INS_TO_USBDEV(sc),
1055               "sending Main DSP page %u\n", p->page_header[0].PageNumber);
1056
1057        for (i = 0; i < le16_to_cpu(p->page_header[0].PageNumber); i++) {
1058                if (E4_IS_BOOT_PAGE(p->page_header[i].PageSize))
1059                        __uea_load_page_e4(sc, i, 1);
1060        }
1061
1062        uea_dbg(INS_TO_USBDEV(sc) , "sending start bi\n");
1063
1064        bi.wHdr = cpu_to_be16(UEA_BIHDR);
1065        bi.bBootPage = 0;
1066        bi.bPageNumber = 0xff;
1067        bi.wReserved = cpu_to_be16(UEA_RESERVED);
1068        bi.dwSize = cpu_to_be32(E4_PAGE_BYTES(p->page_header[0].PageSize));
1069        bi.dwAddress = cpu_to_be32(le32_to_cpu(p->page_header[0].PageAddress));
1070
1071        /* send block info through the IDMA pipe */
1072        if (uea_idma_write(sc, &bi, E4_BLOCK_INFO_SIZE))
1073                uea_err(INS_TO_USBDEV(sc), "sending DSP start bi failed\n");
1074}
1075
1076static inline void wake_up_cmv_ack(struct uea_softc *sc)
1077{
1078        BUG_ON(sc->cmv_ack);
1079        sc->cmv_ack = 1;
1080        wake_up(&sc->sync_q);
1081}
1082
1083static inline int wait_cmv_ack(struct uea_softc *sc)
1084{
1085        int ret = uea_wait(sc, sc->cmv_ack , ACK_TIMEOUT);
1086
1087        sc->cmv_ack = 0;
1088
1089        uea_dbg(INS_TO_USBDEV(sc), "wait_event_timeout : %d ms\n",
1090                        jiffies_to_msecs(ret));
1091
1092        if (ret < 0)
1093                return ret;
1094
1095        return (ret == 0) ? -ETIMEDOUT : 0;
1096}
1097
1098#define UCDC_SEND_ENCAPSULATED_COMMAND 0x00
1099
1100static int uea_request(struct uea_softc *sc,
1101                u16 value, u16 index, u16 size, const void *data)
1102{
1103        u8 *xfer_buff;
1104        int ret = -ENOMEM;
1105
1106        xfer_buff = kmemdup(data, size, GFP_KERNEL);
1107        if (!xfer_buff) {
1108                uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
1109                return ret;
1110        }
1111
1112        ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
1113                              UCDC_SEND_ENCAPSULATED_COMMAND,
1114                              USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
1115                              value, index, xfer_buff, size, CTRL_TIMEOUT);
1116
1117        kfree(xfer_buff);
1118        if (ret < 0) {
1119                uea_err(INS_TO_USBDEV(sc), "usb_control_msg error %d\n", ret);
1120                return ret;
1121        }
1122
1123        if (ret != size) {
1124                uea_err(INS_TO_USBDEV(sc),
1125                       "usb_control_msg send only %d bytes (instead of %d)\n",
1126                       ret, size);
1127                return -EIO;
1128        }
1129
1130        return 0;
1131}
1132
1133static int uea_cmv_e1(struct uea_softc *sc,
1134                u8 function, u32 address, u16 offset, u32 data)
1135{
1136        struct cmv_e1 cmv;
1137        int ret;
1138
1139        uea_enters(INS_TO_USBDEV(sc));
1140        uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Address : %c%c%c%c, "
1141                        "offset : 0x%04x, data : 0x%08x\n",
1142                        E1_FUNCTION_TYPE(function),
1143                        E1_FUNCTION_SUBTYPE(function),
1144                        E1_GETSA1(address), E1_GETSA2(address),
1145                        E1_GETSA3(address),
1146                        E1_GETSA4(address), offset, data);
1147
1148        /* we send a request, but we expect a reply */
1149        sc->cmv_dsc.e1.function = function | 0x2;
1150        sc->cmv_dsc.e1.idx++;
1151        sc->cmv_dsc.e1.address = address;
1152        sc->cmv_dsc.e1.offset = offset;
1153
1154        cmv.wPreamble = cpu_to_le16(E1_PREAMBLE);
1155        cmv.bDirection = E1_HOSTTOMODEM;
1156        cmv.bFunction = function;
1157        cmv.wIndex = cpu_to_le16(sc->cmv_dsc.e1.idx);
1158        put_unaligned_le32(address, &cmv.dwSymbolicAddress);
1159        cmv.wOffsetAddress = cpu_to_le16(offset);
1160        put_unaligned_le32(data >> 16 | data << 16, &cmv.dwData);
1161
1162        ret = uea_request(sc, UEA_E1_SET_BLOCK, UEA_MPTX_START,
1163                                                        sizeof(cmv), &cmv);
1164        if (ret < 0)
1165                return ret;
1166        ret = wait_cmv_ack(sc);
1167        uea_leaves(INS_TO_USBDEV(sc));
1168        return ret;
1169}
1170
1171static int uea_cmv_e4(struct uea_softc *sc,
1172                u16 function, u16 group, u16 address, u16 offset, u32 data)
1173{
1174        struct cmv_e4 cmv;
1175        int ret;
1176
1177        uea_enters(INS_TO_USBDEV(sc));
1178        memset(&cmv, 0, sizeof(cmv));
1179
1180        uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Group : 0x%04x, "
1181                 "Address : 0x%04x, offset : 0x%04x, data : 0x%08x\n",
1182                 E4_FUNCTION_TYPE(function), E4_FUNCTION_SUBTYPE(function),
1183                 group, address, offset, data);
1184
1185        /* we send a request, but we expect a reply */
1186        sc->cmv_dsc.e4.function = function | (0x1 << 4);
1187        sc->cmv_dsc.e4.offset = offset;
1188        sc->cmv_dsc.e4.address = address;
1189        sc->cmv_dsc.e4.group = group;
1190
1191        cmv.wFunction = cpu_to_be16(function);
1192        cmv.wGroup = cpu_to_be16(group);
1193        cmv.wAddress = cpu_to_be16(address);
1194        cmv.wOffset = cpu_to_be16(offset);
1195        cmv.dwData[0] = cpu_to_be32(data);
1196
1197        ret = uea_request(sc, UEA_E4_SET_BLOCK, UEA_MPTX_START,
1198                                                        sizeof(cmv), &cmv);
1199        if (ret < 0)
1200                return ret;
1201        ret = wait_cmv_ack(sc);
1202        uea_leaves(INS_TO_USBDEV(sc));
1203        return ret;
1204}
1205
1206static inline int uea_read_cmv_e1(struct uea_softc *sc,
1207                u32 address, u16 offset, u32 *data)
1208{
1209        int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTREAD),
1210                          address, offset, 0);
1211        if (ret < 0)
1212                uea_err(INS_TO_USBDEV(sc),
1213                        "reading cmv failed with error %d\n", ret);
1214        else
1215                *data = sc->data;
1216
1217        return ret;
1218}
1219
1220static inline int uea_read_cmv_e4(struct uea_softc *sc,
1221                u8 size, u16 group, u16 address, u16 offset, u32 *data)
1222{
1223        int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
1224                                                        E4_REQUESTREAD, size),
1225                          group, address, offset, 0);
1226        if (ret < 0)
1227                uea_err(INS_TO_USBDEV(sc),
1228                        "reading cmv failed with error %d\n", ret);
1229        else {
1230                *data = sc->data;
1231                /* size is in 16-bit word quantities */
1232                if (size > 2)
1233                        *(data + 1) = sc->data1;
1234        }
1235        return ret;
1236}
1237
1238static inline int uea_write_cmv_e1(struct uea_softc *sc,
1239                u32 address, u16 offset, u32 data)
1240{
1241        int ret = uea_cmv_e1(sc, E1_MAKEFUNCTION(E1_MEMACCESS, E1_REQUESTWRITE),
1242                          address, offset, data);
1243        if (ret < 0)
1244                uea_err(INS_TO_USBDEV(sc),
1245                        "writing cmv failed with error %d\n", ret);
1246
1247        return ret;
1248}
1249
1250static inline int uea_write_cmv_e4(struct uea_softc *sc,
1251                u8 size, u16 group, u16 address, u16 offset, u32 data)
1252{
1253        int ret = uea_cmv_e4(sc, E4_MAKEFUNCTION(E4_MEMACCESS,
1254                                                        E4_REQUESTWRITE, size),
1255                          group, address, offset, data);
1256        if (ret < 0)
1257                uea_err(INS_TO_USBDEV(sc),
1258                        "writing cmv failed with error %d\n", ret);
1259
1260        return ret;
1261}
1262
1263static void uea_set_bulk_timeout(struct uea_softc *sc, u32 dsrate)
1264{
1265        int ret;
1266        u16 timeout;
1267
1268        /* in bulk mode the modem have problem with high rate
1269         * changing internal timing could improve things, but the
1270         * value is mysterious.
1271         * ADI930 don't support it (-EPIPE error).
1272         */
1273
1274        if (UEA_CHIP_VERSION(sc) == ADI930 ||
1275            altsetting[sc->modem_index] > 0 ||
1276            sc->stats.phy.dsrate == dsrate)
1277                return;
1278
1279        /* Original timming (1Mbit/s) from ADI (used in windows driver) */
1280        timeout = (dsrate <= 1024*1024) ? 0 : 1;
1281        ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
1282        uea_info(INS_TO_USBDEV(sc), "setting new timeout %d%s\n",
1283                 timeout,  ret < 0 ? " failed" : "");
1284
1285}
1286
1287/*
1288 * Monitor the modem and update the stat
1289 * return 0 if everything is ok
1290 * return < 0 if an error occurs (-EAGAIN reboot needed)
1291 */
1292static int uea_stat_e1(struct uea_softc *sc)
1293{
1294        u32 data;
1295        int ret;
1296
1297        uea_enters(INS_TO_USBDEV(sc));
1298        data = sc->stats.phy.state;
1299
1300        ret = uea_read_cmv_e1(sc, E1_SA_STAT, 0, &sc->stats.phy.state);
1301        if (ret < 0)
1302                return ret;
1303
1304        switch (GET_STATUS(sc->stats.phy.state)) {
1305        case 0:         /* not yet synchronized */
1306                uea_dbg(INS_TO_USBDEV(sc),
1307                       "modem not yet synchronized\n");
1308                return 0;
1309
1310        case 1:         /* initialization */
1311                uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
1312                return 0;
1313
1314        case 2:         /* operational */
1315                uea_vdbg(INS_TO_USBDEV(sc), "modem operational\n");
1316                break;
1317
1318        case 3:         /* fail ... */
1319                uea_info(INS_TO_USBDEV(sc), "modem synchronization failed"
1320                                        " (may be try other cmv/dsp)\n");
1321                return -EAGAIN;
1322
1323        case 4 ... 6:   /* test state */
1324                uea_warn(INS_TO_USBDEV(sc),
1325                                "modem in test mode - not supported\n");
1326                return -EAGAIN;
1327
1328        case 7:         /* fast-retain ... */
1329                uea_info(INS_TO_USBDEV(sc), "modem in fast-retain mode\n");
1330                return 0;
1331        default:
1332                uea_err(INS_TO_USBDEV(sc), "modem invalid SW mode %d\n",
1333                        GET_STATUS(sc->stats.phy.state));
1334                return -EAGAIN;
1335        }
1336
1337        if (GET_STATUS(data) != 2) {
1338                uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
1339                uea_info(INS_TO_USBDEV(sc), "modem operational\n");
1340
1341                /* release the dsp firmware as it is not needed until
1342                 * the next failure
1343                 */
1344                release_firmware(sc->dsp_firm);
1345                sc->dsp_firm = NULL;
1346        }
1347
1348        /* always update it as atm layer could not be init when we switch to
1349         * operational state
1350         */
1351        UPDATE_ATM_SIGNAL(ATM_PHY_SIG_FOUND);
1352
1353        /* wake up processes waiting for synchronization */
1354        wake_up(&sc->sync_q);
1355
1356        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 2, &sc->stats.phy.flags);
1357        if (ret < 0)
1358                return ret;
1359        sc->stats.phy.mflags |= sc->stats.phy.flags;
1360
1361        /* in case of a flags ( for example delineation LOSS (& 0x10)),
1362         * we check the status again in order to detect the failure earlier
1363         */
1364        if (sc->stats.phy.flags) {
1365                uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
1366                       sc->stats.phy.flags);
1367                return 0;
1368        }
1369
1370        ret = uea_read_cmv_e1(sc, E1_SA_RATE, 0, &data);
1371        if (ret < 0)
1372                return ret;
1373
1374        uea_set_bulk_timeout(sc, (data >> 16) * 32);
1375        sc->stats.phy.dsrate = (data >> 16) * 32;
1376        sc->stats.phy.usrate = (data & 0xffff) * 32;
1377        UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
1378
1379        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 23, &data);
1380        if (ret < 0)
1381                return ret;
1382        sc->stats.phy.dsattenuation = (data & 0xff) / 2;
1383
1384        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 47, &data);
1385        if (ret < 0)
1386                return ret;
1387        sc->stats.phy.usattenuation = (data & 0xff) / 2;
1388
1389        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 25, &sc->stats.phy.dsmargin);
1390        if (ret < 0)
1391                return ret;
1392
1393        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 49, &sc->stats.phy.usmargin);
1394        if (ret < 0)
1395                return ret;
1396
1397        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 51, &sc->stats.phy.rxflow);
1398        if (ret < 0)
1399                return ret;
1400
1401        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 52, &sc->stats.phy.txflow);
1402        if (ret < 0)
1403                return ret;
1404
1405        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 54, &sc->stats.phy.dsunc);
1406        if (ret < 0)
1407                return ret;
1408
1409        /* only for atu-c */
1410        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 58, &sc->stats.phy.usunc);
1411        if (ret < 0)
1412                return ret;
1413
1414        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 53, &sc->stats.phy.dscorr);
1415        if (ret < 0)
1416                return ret;
1417
1418        /* only for atu-c */
1419        ret = uea_read_cmv_e1(sc, E1_SA_DIAG, 57, &sc->stats.phy.uscorr);
1420        if (ret < 0)
1421                return ret;
1422
1423        ret = uea_read_cmv_e1(sc, E1_SA_INFO, 8, &sc->stats.phy.vidco);
1424        if (ret < 0)
1425                return ret;
1426
1427        ret = uea_read_cmv_e1(sc, E1_SA_INFO, 13, &sc->stats.phy.vidcpe);
1428        if (ret < 0)
1429                return ret;
1430
1431        return 0;
1432}
1433
1434static int uea_stat_e4(struct uea_softc *sc)
1435{
1436        u32 data;
1437        u32 tmp_arr[2];
1438        int ret;
1439
1440        uea_enters(INS_TO_USBDEV(sc));
1441        data = sc->stats.phy.state;
1442
1443        /* XXX only need to be done before operationnal... */
1444        ret = uea_read_cmv_e4(sc, 1, E4_SA_STAT, 0, 0, &sc->stats.phy.state);
1445        if (ret < 0)
1446                return ret;
1447
1448        switch (sc->stats.phy.state) {
1449        case 0x0:       /* not yet synchronized */
1450        case 0x1:
1451        case 0x3:
1452        case 0x4:
1453                uea_dbg(INS_TO_USBDEV(sc), "modem not yet "
1454                                                "synchronized\n");
1455                return 0;
1456        case 0x5:       /* initialization */
1457        case 0x6:
1458        case 0x9:
1459        case 0xa:
1460                uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
1461                return 0;
1462        case 0x2:       /* fail ... */
1463                uea_info(INS_TO_USBDEV(sc), "modem synchronization "
1464                                "failed (may be try other cmv/dsp)\n");
1465                return -EAGAIN;
1466        case 0x7:       /* operational */
1467                break;
1468        default:
1469                uea_warn(INS_TO_USBDEV(sc), "unknown state: %x\n",
1470                                                sc->stats.phy.state);
1471                return 0;
1472        }
1473
1474        if (data != 7) {
1475                uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
1476                uea_info(INS_TO_USBDEV(sc), "modem operational\n");
1477
1478                /* release the dsp firmware as it is not needed until
1479                 * the next failure
1480                 */
1481                release_firmware(sc->dsp_firm);
1482                sc->dsp_firm = NULL;
1483        }
1484
1485        /* always update it as atm layer could not be init when we switch to
1486         * operational state
1487         */
1488        UPDATE_ATM_SIGNAL(ATM_PHY_SIG_FOUND);
1489
1490        /* wake up processes waiting for synchronization */
1491        wake_up(&sc->sync_q);
1492
1493        /* TODO improve this state machine :
1494         * we need some CMV info : what they do and their unit
1495         * we should find the equivalent of eagle3- CMV
1496         */
1497        /* check flags */
1498        ret = uea_read_cmv_e4(sc, 1, E4_SA_DIAG, 0, 0, &sc->stats.phy.flags);
1499        if (ret < 0)
1500                return ret;
1501        sc->stats.phy.mflags |= sc->stats.phy.flags;
1502
1503        /* in case of a flags ( for example delineation LOSS (& 0x10)),
1504         * we check the status again in order to detect the failure earlier
1505         */
1506        if (sc->stats.phy.flags) {
1507                uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
1508                       sc->stats.phy.flags);
1509                if (sc->stats.phy.flags & 1) /* delineation LOSS */
1510                        return -EAGAIN;
1511                if (sc->stats.phy.flags & 0x4000) /* Reset Flag */
1512                        return -EAGAIN;
1513                return 0;
1514        }
1515
1516        /* rate data may be in upper or lower half of 64 bit word, strange */
1517        ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 0, 0, tmp_arr);
1518        if (ret < 0)
1519                return ret;
1520        data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
1521        sc->stats.phy.usrate = data / 1000;
1522
1523        ret = uea_read_cmv_e4(sc, 4, E4_SA_RATE, 1, 0, tmp_arr);
1524        if (ret < 0)
1525                return ret;
1526        data = (tmp_arr[0]) ? tmp_arr[0] : tmp_arr[1];
1527        uea_set_bulk_timeout(sc, data / 1000);
1528        sc->stats.phy.dsrate = data / 1000;
1529        UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
1530
1531        ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 1, &data);
1532        if (ret < 0)
1533                return ret;
1534        sc->stats.phy.dsattenuation = data / 10;
1535
1536        ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 1, &data);
1537        if (ret < 0)
1538                return ret;
1539        sc->stats.phy.usattenuation = data / 10;
1540
1541        ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 68, 3, &data);
1542        if (ret < 0)
1543                return ret;
1544        sc->stats.phy.dsmargin = data / 2;
1545
1546        ret = uea_read_cmv_e4(sc, 1, E4_SA_INFO, 69, 3, &data);
1547        if (ret < 0)
1548                return ret;
1549        sc->stats.phy.usmargin = data / 10;
1550
1551        return 0;
1552}
1553
1554static void cmvs_file_name(struct uea_softc *sc, char *const cmv_name, int ver)
1555{
1556        char file_arr[] = "CMVxy.bin";
1557        char *file;
1558
1559        kernel_param_lock(THIS_MODULE);
1560        /* set proper name corresponding modem version and line type */
1561        if (cmv_file[sc->modem_index] == NULL) {
1562                if (UEA_CHIP_VERSION(sc) == ADI930)
1563                        file_arr[3] = '9';
1564                else if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
1565                        file_arr[3] = '4';
1566                else
1567                        file_arr[3] = 'e';
1568
1569                file_arr[4] = IS_ISDN(sc) ? 'i' : 'p';
1570                file = file_arr;
1571        } else
1572                file = cmv_file[sc->modem_index];
1573
1574        strcpy(cmv_name, FW_DIR);
1575        strlcat(cmv_name, file, UEA_FW_NAME_MAX);
1576        if (ver == 2)
1577                strlcat(cmv_name, ".v2", UEA_FW_NAME_MAX);
1578        kernel_param_unlock(THIS_MODULE);
1579}
1580
1581static int request_cmvs_old(struct uea_softc *sc,
1582                 void **cmvs, const struct firmware **fw)
1583{
1584        int ret, size;
1585        u8 *data;
1586        char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */
1587
1588        cmvs_file_name(sc, cmv_name, 1);
1589        ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
1590        if (ret < 0) {
1591                uea_err(INS_TO_USBDEV(sc),
1592                       "requesting firmware %s failed with error %d\n",
1593                       cmv_name, ret);
1594                return ret;
1595        }
1596
1597        data = (u8 *) (*fw)->data;
1598        size = (*fw)->size;
1599        if (size < 1)
1600                goto err_fw_corrupted;
1601
1602        if (size != *data * sizeof(struct uea_cmvs_v1) + 1)
1603                goto err_fw_corrupted;
1604
1605        *cmvs = (void *)(data + 1);
1606        return *data;
1607
1608err_fw_corrupted:
1609        uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
1610        release_firmware(*fw);
1611        return -EILSEQ;
1612}
1613
1614static int request_cmvs(struct uea_softc *sc,
1615                 void **cmvs, const struct firmware **fw, int *ver)
1616{
1617        int ret, size;
1618        u32 crc;
1619        u8 *data;
1620        char cmv_name[UEA_FW_NAME_MAX]; /* 30 bytes stack variable */
1621
1622        cmvs_file_name(sc, cmv_name, 2);
1623        ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
1624        if (ret < 0) {
1625                /* if caller can handle old version, try to provide it */
1626                if (*ver == 1) {
1627                        uea_warn(INS_TO_USBDEV(sc), "requesting "
1628                                                        "firmware %s failed, "
1629                                "try to get older cmvs\n", cmv_name);
1630                        return request_cmvs_old(sc, cmvs, fw);
1631                }
1632                uea_err(INS_TO_USBDEV(sc),
1633                       "requesting firmware %s failed with error %d\n",
1634                       cmv_name, ret);
1635                return ret;
1636        }
1637
1638        size = (*fw)->size;
1639        data = (u8 *) (*fw)->data;
1640        if (size < 4 || strncmp(data, "cmv2", 4) != 0) {
1641                if (*ver == 1) {
1642                        uea_warn(INS_TO_USBDEV(sc), "firmware %s is corrupted,"
1643                                " try to get older cmvs\n", cmv_name);
1644                        release_firmware(*fw);
1645                        return request_cmvs_old(sc, cmvs, fw);
1646                }
1647                goto err_fw_corrupted;
1648        }
1649
1650        *ver = 2;
1651
1652        data += 4;
1653        size -= 4;
1654        if (size < 5)
1655                goto err_fw_corrupted;
1656
1657        crc = get_unaligned_le32(data);
1658        data += 4;
1659        size -= 4;
1660        if (crc32_be(0, data, size) != crc)
1661                goto err_fw_corrupted;
1662
1663        if (size != *data * sizeof(struct uea_cmvs_v2) + 1)
1664                goto err_fw_corrupted;
1665
1666        *cmvs = (void *) (data + 1);
1667        return *data;
1668
1669err_fw_corrupted:
1670        uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n", cmv_name);
1671        release_firmware(*fw);
1672        return -EILSEQ;
1673}
1674
1675static int uea_send_cmvs_e1(struct uea_softc *sc)
1676{
1677        int i, ret, len;
1678        void *cmvs_ptr;
1679        const struct firmware *cmvs_fw;
1680        int ver = 1; /* we can handle v1 cmv firmware version; */
1681
1682        /* Enter in R-IDLE (cmv) until instructed otherwise */
1683        ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 1);
1684        if (ret < 0)
1685                return ret;
1686
1687        /* Dump firmware version */
1688        ret = uea_read_cmv_e1(sc, E1_SA_INFO, 10, &sc->stats.phy.firmid);
1689        if (ret < 0)
1690                return ret;
1691        uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
1692                        sc->stats.phy.firmid);
1693
1694        /* get options */
1695        ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
1696        if (ret < 0)
1697                return ret;
1698
1699        /* send options */
1700        if (ver == 1) {
1701                struct uea_cmvs_v1 *cmvs_v1 = cmvs_ptr;
1702
1703                uea_warn(INS_TO_USBDEV(sc), "use deprecated cmvs version, "
1704                        "please update your firmware\n");
1705
1706                for (i = 0; i < len; i++) {
1707                        ret = uea_write_cmv_e1(sc,
1708                                get_unaligned_le32(&cmvs_v1[i].address),
1709                                get_unaligned_le16(&cmvs_v1[i].offset),
1710                                get_unaligned_le32(&cmvs_v1[i].data));
1711                        if (ret < 0)
1712                                goto out;
1713                }
1714        } else if (ver == 2) {
1715                struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
1716
1717                for (i = 0; i < len; i++) {
1718                        ret = uea_write_cmv_e1(sc,
1719                                get_unaligned_le32(&cmvs_v2[i].address),
1720                                (u16) get_unaligned_le32(&cmvs_v2[i].offset),
1721                                get_unaligned_le32(&cmvs_v2[i].data));
1722                        if (ret < 0)
1723                                goto out;
1724                }
1725        } else {
1726                /* This really should not happen */
1727                uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
1728                goto out;
1729        }
1730
1731        /* Enter in R-ACT-REQ */
1732        ret = uea_write_cmv_e1(sc, E1_SA_CNTL, 0, 2);
1733        uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
1734        uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
1735                                                "synchronization...\n");
1736out:
1737        release_firmware(cmvs_fw);
1738        return ret;
1739}
1740
1741static int uea_send_cmvs_e4(struct uea_softc *sc)
1742{
1743        int i, ret, len;
1744        void *cmvs_ptr;
1745        const struct firmware *cmvs_fw;
1746        int ver = 2; /* we can only handle v2 cmv firmware version; */
1747
1748        /* Enter in R-IDLE (cmv) until instructed otherwise */
1749        ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 1);
1750        if (ret < 0)
1751                return ret;
1752
1753        /* Dump firmware version */
1754        /* XXX don't read the 3th byte as it is always 6 */
1755        ret = uea_read_cmv_e4(sc, 2, E4_SA_INFO, 55, 0, &sc->stats.phy.firmid);
1756        if (ret < 0)
1757                return ret;
1758        uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
1759                        sc->stats.phy.firmid);
1760
1761
1762        /* get options */
1763        ret = len = request_cmvs(sc, &cmvs_ptr, &cmvs_fw, &ver);
1764        if (ret < 0)
1765                return ret;
1766
1767        /* send options */
1768        if (ver == 2) {
1769                struct uea_cmvs_v2 *cmvs_v2 = cmvs_ptr;
1770
1771                for (i = 0; i < len; i++) {
1772                        ret = uea_write_cmv_e4(sc, 1,
1773                                get_unaligned_le32(&cmvs_v2[i].group),
1774                                get_unaligned_le32(&cmvs_v2[i].address),
1775                                get_unaligned_le32(&cmvs_v2[i].offset),
1776                                get_unaligned_le32(&cmvs_v2[i].data));
1777                        if (ret < 0)
1778                                goto out;
1779                }
1780        } else {
1781                /* This really should not happen */
1782                uea_err(INS_TO_USBDEV(sc), "bad cmvs version %d\n", ver);
1783                goto out;
1784        }
1785
1786        /* Enter in R-ACT-REQ */
1787        ret = uea_write_cmv_e4(sc, 1, E4_SA_CNTL, 0, 0, 2);
1788        uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
1789        uea_info(INS_TO_USBDEV(sc), "modem started, waiting "
1790                                                "synchronization...\n");
1791out:
1792        release_firmware(cmvs_fw);
1793        return ret;
1794}
1795
1796/* Start boot post firmware modem:
1797 * - send reset commands through usb control pipe
1798 * - start workqueue for DSP loading
1799 * - send CMV options to modem
1800 */
1801
1802static int uea_start_reset(struct uea_softc *sc)
1803{
1804        u16 zero = 0;   /* ;-) */
1805        int ret;
1806
1807        uea_enters(INS_TO_USBDEV(sc));
1808        uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");
1809
1810        /* mask interrupt */
1811        sc->booting = 1;
1812        /* We need to set this here because, a ack timeout could have occurred,
1813         * but before we start the reboot, the ack occurs and set this to 1.
1814         * So we will failed to wait Ready CMV.
1815         */
1816        sc->cmv_ack = 0;
1817        UPDATE_ATM_SIGNAL(ATM_PHY_SIG_LOST);
1818
1819        /* reset statistics */
1820        memset(&sc->stats, 0, sizeof(struct uea_stats));
1821
1822        /* tell the modem that we want to boot in IDMA mode */
1823        uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1824        uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL);
1825
1826        /* enter reset mode */
1827        uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL);
1828
1829        /* original driver use 200ms, but windows driver use 100ms */
1830        ret = uea_wait(sc, 0, msecs_to_jiffies(100));
1831        if (ret < 0)
1832                return ret;
1833
1834        /* leave reset mode */
1835        uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);
1836
1837        if (UEA_CHIP_VERSION(sc) != EAGLE_IV) {
1838                /* clear tx and rx mailboxes */
1839                uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
1840                uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
1841                uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
1842        }
1843
1844        ret = uea_wait(sc, 0, msecs_to_jiffies(1000));
1845        if (ret < 0)
1846                return ret;
1847
1848        if (UEA_CHIP_VERSION(sc) == EAGLE_IV)
1849                sc->cmv_dsc.e4.function = E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
1850                                                        E4_MODEMREADY, 1);
1851        else
1852                sc->cmv_dsc.e1.function = E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
1853                                                        E1_MODEMREADY);
1854
1855        /* demask interrupt */
1856        sc->booting = 0;
1857
1858        /* start loading DSP */
1859        sc->pageno = 0;
1860        sc->ovl = 0;
1861        schedule_work(&sc->task);
1862
1863        /* wait for modem ready CMV */
1864        ret = wait_cmv_ack(sc);
1865        if (ret < 0)
1866                return ret;
1867
1868        uea_vdbg(INS_TO_USBDEV(sc), "Ready CMV received\n");
1869
1870        ret = sc->send_cmvs(sc);
1871        if (ret < 0)
1872                return ret;
1873
1874        sc->reset = 0;
1875        uea_leaves(INS_TO_USBDEV(sc));
1876        return ret;
1877}
1878
1879/*
1880 * In case of an error wait 1s before rebooting the modem
1881 * if the modem don't request reboot (-EAGAIN).
1882 * Monitor the modem every 1s.
1883 */
1884
1885static int uea_kthread(void *data)
1886{
1887        struct uea_softc *sc = data;
1888        int ret = -EAGAIN;
1889
1890        set_freezable();
1891        uea_enters(INS_TO_USBDEV(sc));
1892        while (!kthread_should_stop()) {
1893                if (ret < 0 || sc->reset)
1894                        ret = uea_start_reset(sc);
1895                if (!ret)
1896                        ret = sc->stat(sc);
1897                if (ret != -EAGAIN)
1898                        uea_wait(sc, 0, msecs_to_jiffies(1000));
1899                try_to_freeze();
1900        }
1901        uea_leaves(INS_TO_USBDEV(sc));
1902        return ret;
1903}
1904
1905/* Load second usb firmware for ADI930 chip */
1906static int load_XILINX_firmware(struct uea_softc *sc)
1907{
1908        const struct firmware *fw_entry;
1909        int ret, size, u, ln;
1910        const u8 *pfw;
1911        u8 value;
1912        char *fw_name = FPGA930_FIRMWARE;
1913
1914        uea_enters(INS_TO_USBDEV(sc));
1915
1916        ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev);
1917        if (ret) {
1918                uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n",
1919                       fw_name);
1920                goto err0;
1921        }
1922
1923        pfw = fw_entry->data;
1924        size = fw_entry->size;
1925        if (size != 0x577B) {
1926                uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1927                       fw_name);
1928                ret = -EILSEQ;
1929                goto err1;
1930        }
1931        for (u = 0; u < size; u += ln) {
1932                ln = min(size - u, 64);
1933                ret = uea_request(sc, 0xe, 0, ln, pfw + u);
1934                if (ret < 0) {
1935                        uea_err(INS_TO_USBDEV(sc),
1936                               "elsa download data failed (%d)\n", ret);
1937                        goto err1;
1938                }
1939        }
1940
1941        /* finish to send the fpga */
1942        ret = uea_request(sc, 0xe, 1, 0, NULL);
1943        if (ret < 0) {
1944                uea_err(INS_TO_USBDEV(sc),
1945                                "elsa download data failed (%d)\n", ret);
1946                goto err1;
1947        }
1948
1949        /* Tell the modem we finish : de-assert reset */
1950        value = 0;
1951        ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
1952        if (ret < 0)
1953                uea_err(sc->usb_dev, "elsa de-assert failed with error"
1954                                                                " %d\n", ret);
1955
1956err1:
1957        release_firmware(fw_entry);
1958err0:
1959        uea_leaves(INS_TO_USBDEV(sc));
1960        return ret;
1961}
1962
1963/* The modem send us an ack. First with check if it right */
1964static void uea_dispatch_cmv_e1(struct uea_softc *sc, struct intr_pkt *intr)
1965{
1966        struct cmv_dsc_e1 *dsc = &sc->cmv_dsc.e1;
1967        struct cmv_e1 *cmv = &intr->u.e1.s2.cmv;
1968
1969        uea_enters(INS_TO_USBDEV(sc));
1970        if (le16_to_cpu(cmv->wPreamble) != E1_PREAMBLE)
1971                goto bad1;
1972
1973        if (cmv->bDirection != E1_MODEMTOHOST)
1974                goto bad1;
1975
1976        /* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
1977         * the first MEMACCESS cmv. Ignore it...
1978         */
1979        if (cmv->bFunction != dsc->function) {
1980                if (UEA_CHIP_VERSION(sc) == ADI930
1981                                && cmv->bFunction ==  E1_MAKEFUNCTION(2, 2)) {
1982                        cmv->wIndex = cpu_to_le16(dsc->idx);
1983                        put_unaligned_le32(dsc->address,
1984                                                &cmv->dwSymbolicAddress);
1985                        cmv->wOffsetAddress = cpu_to_le16(dsc->offset);
1986                } else
1987                        goto bad2;
1988        }
1989
1990        if (cmv->bFunction == E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
1991                                                        E1_MODEMREADY)) {
1992                wake_up_cmv_ack(sc);
1993                uea_leaves(INS_TO_USBDEV(sc));
1994                return;
1995        }
1996
1997        /* in case of MEMACCESS */
1998        if (le16_to_cpu(cmv->wIndex) != dsc->idx ||
1999            get_unaligned_le32(&cmv->dwSymbolicAddress) != dsc->address ||
2000            le16_to_cpu(cmv->wOffsetAddress) != dsc->offset)
2001                goto bad2;
2002
2003        sc->data = get_unaligned_le32(&cmv->dwData);
2004        sc->data = sc->data << 16 | sc->data >> 16;
2005
2006        wake_up_cmv_ack(sc);
2007        uea_leaves(INS_TO_USBDEV(sc));
2008        return;
2009
2010bad2:
2011        uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
2012                        "Function : %d, Subfunction : %d\n",
2013                        E1_FUNCTION_TYPE(cmv->bFunction),
2014                        E1_FUNCTION_SUBTYPE(cmv->bFunction));
2015        uea_leaves(INS_TO_USBDEV(sc));
2016        return;
2017
2018bad1:
2019        uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
2020                        "wPreamble %d, bDirection %d\n",
2021                        le16_to_cpu(cmv->wPreamble), cmv->bDirection);
2022        uea_leaves(INS_TO_USBDEV(sc));
2023}
2024
2025/* The modem send us an ack. First with check if it right */
2026static void uea_dispatch_cmv_e4(struct uea_softc *sc, struct intr_pkt *intr)
2027{
2028        struct cmv_dsc_e4 *dsc = &sc->cmv_dsc.e4;
2029        struct cmv_e4 *cmv = &intr->u.e4.s2.cmv;
2030
2031        uea_enters(INS_TO_USBDEV(sc));
2032        uea_dbg(INS_TO_USBDEV(sc), "cmv %x %x %x %x %x %x\n",
2033                be16_to_cpu(cmv->wGroup), be16_to_cpu(cmv->wFunction),
2034                be16_to_cpu(cmv->wOffset), be16_to_cpu(cmv->wAddress),
2035                be32_to_cpu(cmv->dwData[0]), be32_to_cpu(cmv->dwData[1]));
2036
2037        if (be16_to_cpu(cmv->wFunction) != dsc->function)
2038                goto bad2;
2039
2040        if (be16_to_cpu(cmv->wFunction) == E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
2041                                                E4_MODEMREADY, 1)) {
2042                wake_up_cmv_ack(sc);
2043                uea_leaves(INS_TO_USBDEV(sc));
2044                return;
2045        }
2046
2047        /* in case of MEMACCESS */
2048        if (be16_to_cpu(cmv->wOffset) != dsc->offset ||
2049            be16_to_cpu(cmv->wGroup) != dsc->group ||
2050            be16_to_cpu(cmv->wAddress) != dsc->address)
2051                goto bad2;
2052
2053        sc->data = be32_to_cpu(cmv->dwData[0]);
2054        sc->data1 = be32_to_cpu(cmv->dwData[1]);
2055        wake_up_cmv_ack(sc);
2056        uea_leaves(INS_TO_USBDEV(sc));
2057        return;
2058
2059bad2:
2060        uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
2061                        "Function : %d, Subfunction : %d\n",
2062                        E4_FUNCTION_TYPE(cmv->wFunction),
2063                        E4_FUNCTION_SUBTYPE(cmv->wFunction));
2064        uea_leaves(INS_TO_USBDEV(sc));
2065        return;
2066}
2067
2068static void uea_schedule_load_page_e1(struct uea_softc *sc,
2069                                                struct intr_pkt *intr)
2070{
2071        sc->pageno = intr->e1_bSwapPageNo;
2072        sc->ovl = intr->e1_bOvl >> 4 | intr->e1_bOvl << 4;
2073        schedule_work(&sc->task);
2074}
2075
2076static void uea_schedule_load_page_e4(struct uea_softc *sc,
2077                                                struct intr_pkt *intr)
2078{
2079        sc->pageno = intr->e4_bSwapPageNo;
2080        schedule_work(&sc->task);
2081}
2082
2083/*
2084 * interrupt handler
2085 */
2086static void uea_intr(struct urb *urb)
2087{
2088        struct uea_softc *sc = urb->context;
2089        struct intr_pkt *intr = urb->transfer_buffer;
2090        int status = urb->status;
2091
2092        uea_enters(INS_TO_USBDEV(sc));
2093
2094        if (unlikely(status < 0)) {
2095                uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n",
2096                       status);
2097                return;
2098        }
2099
2100        /* device-to-host interrupt */
2101        if (intr->bType != 0x08 || sc->booting) {
2102                uea_err(INS_TO_USBDEV(sc), "wrong interrupt\n");
2103                goto resubmit;
2104        }
2105
2106        switch (le16_to_cpu(intr->wInterrupt)) {
2107        case INT_LOADSWAPPAGE:
2108                sc->schedule_load_page(sc, intr);
2109                break;
2110
2111        case INT_INCOMINGCMV:
2112                sc->dispatch_cmv(sc, intr);
2113                break;
2114
2115        default:
2116                uea_err(INS_TO_USBDEV(sc), "unknown interrupt %u\n",
2117                       le16_to_cpu(intr->wInterrupt));
2118        }
2119
2120resubmit:
2121        usb_submit_urb(sc->urb_int, GFP_ATOMIC);
2122}
2123
2124/*
2125 * Start the modem : init the data and start kernel thread
2126 */
2127static int uea_boot(struct uea_softc *sc, struct usb_interface *intf)
2128{
2129        struct intr_pkt *intr;
2130        int ret = -ENOMEM;
2131        int size;
2132
2133        uea_enters(INS_TO_USBDEV(sc));
2134
2135        if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2136                size = E4_INTR_PKT_SIZE;
2137                sc->dispatch_cmv = uea_dispatch_cmv_e4;
2138                sc->schedule_load_page = uea_schedule_load_page_e4;
2139                sc->stat = uea_stat_e4;
2140                sc->send_cmvs = uea_send_cmvs_e4;
2141                INIT_WORK(&sc->task, uea_load_page_e4);
2142        } else {
2143                size = E1_INTR_PKT_SIZE;
2144                sc->dispatch_cmv = uea_dispatch_cmv_e1;
2145                sc->schedule_load_page = uea_schedule_load_page_e1;
2146                sc->stat = uea_stat_e1;
2147                sc->send_cmvs = uea_send_cmvs_e1;
2148                INIT_WORK(&sc->task, uea_load_page_e1);
2149        }
2150
2151        init_waitqueue_head(&sc->sync_q);
2152
2153        if (UEA_CHIP_VERSION(sc) == ADI930)
2154                load_XILINX_firmware(sc);
2155
2156        if (intf->cur_altsetting->desc.bNumEndpoints < 1) {
2157                ret = -ENODEV;
2158                goto err0;
2159        }
2160
2161        intr = kmalloc(size, GFP_KERNEL);
2162        if (!intr)
2163                goto err0;
2164
2165        sc->urb_int = usb_alloc_urb(0, GFP_KERNEL);
2166        if (!sc->urb_int)
2167                goto err1;
2168
2169        usb_fill_int_urb(sc->urb_int, sc->usb_dev,
2170                         usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
2171                         intr, size, uea_intr, sc,
2172                         intf->cur_altsetting->endpoint[0].desc.bInterval);
2173
2174        ret = usb_submit_urb(sc->urb_int, GFP_KERNEL);
2175        if (ret < 0) {
2176                uea_err(INS_TO_USBDEV(sc),
2177                       "urb submission failed with error %d\n", ret);
2178                goto err1;
2179        }
2180
2181        /* Create worker thread, but don't start it here.  Start it after
2182         * all usbatm generic initialization is done.
2183         */
2184        sc->kthread = kthread_create(uea_kthread, sc, "ueagle-atm");
2185        if (IS_ERR(sc->kthread)) {
2186                uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
2187                ret = PTR_ERR(sc->kthread);
2188                goto err2;
2189        }
2190
2191        uea_leaves(INS_TO_USBDEV(sc));
2192        return 0;
2193
2194err2:
2195        usb_kill_urb(sc->urb_int);
2196err1:
2197        usb_free_urb(sc->urb_int);
2198        sc->urb_int = NULL;
2199        kfree(intr);
2200err0:
2201        uea_leaves(INS_TO_USBDEV(sc));
2202        return ret;
2203}
2204
2205/*
2206 * Stop the modem : kill kernel thread and free data
2207 */
2208static void uea_stop(struct uea_softc *sc)
2209{
2210        int ret;
2211        uea_enters(INS_TO_USBDEV(sc));
2212        ret = kthread_stop(sc->kthread);
2213        uea_dbg(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret);
2214
2215        uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
2216
2217        usb_kill_urb(sc->urb_int);
2218        kfree(sc->urb_int->transfer_buffer);
2219        usb_free_urb(sc->urb_int);
2220
2221        /* flush the work item, when no one can schedule it */
2222        flush_work(&sc->task);
2223
2224        release_firmware(sc->dsp_firm);
2225        uea_leaves(INS_TO_USBDEV(sc));
2226}
2227
2228/* syfs interface */
2229static struct uea_softc *dev_to_uea(struct device *dev)
2230{
2231        struct usb_interface *intf;
2232        struct usbatm_data *usbatm;
2233
2234        intf = to_usb_interface(dev);
2235        if (!intf)
2236                return NULL;
2237
2238        usbatm = usb_get_intfdata(intf);
2239        if (!usbatm)
2240                return NULL;
2241
2242        return usbatm->driver_data;
2243}
2244
2245static ssize_t stat_status_show(struct device *dev, struct device_attribute *attr,
2246                char *buf)
2247{
2248        int ret = -ENODEV;
2249        struct uea_softc *sc;
2250
2251        mutex_lock(&uea_mutex);
2252        sc = dev_to_uea(dev);
2253        if (!sc)
2254                goto out;
2255        ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.state);
2256out:
2257        mutex_unlock(&uea_mutex);
2258        return ret;
2259}
2260
2261static ssize_t stat_status_store(struct device *dev, struct device_attribute *attr,
2262                const char *buf, size_t count)
2263{
2264        int ret = -ENODEV;
2265        struct uea_softc *sc;
2266
2267        mutex_lock(&uea_mutex);
2268        sc = dev_to_uea(dev);
2269        if (!sc)
2270                goto out;
2271        sc->reset = 1;
2272        ret = count;
2273out:
2274        mutex_unlock(&uea_mutex);
2275        return ret;
2276}
2277
2278static DEVICE_ATTR_RW(stat_status);
2279
2280static ssize_t stat_human_status_show(struct device *dev,
2281                        struct device_attribute *attr, char *buf)
2282{
2283        int ret = -ENODEV;
2284        int modem_state;
2285        struct uea_softc *sc;
2286
2287        mutex_lock(&uea_mutex);
2288        sc = dev_to_uea(dev);
2289        if (!sc)
2290                goto out;
2291
2292        if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2293                switch (sc->stats.phy.state) {
2294                case 0x0:       /* not yet synchronized */
2295                case 0x1:
2296                case 0x3:
2297                case 0x4:
2298                        modem_state = 0;
2299                        break;
2300                case 0x5:       /* initialization */
2301                case 0x6:
2302                case 0x9:
2303                case 0xa:
2304                        modem_state = 1;
2305                        break;
2306                case 0x7:       /* operational */
2307                        modem_state = 2;
2308                        break;
2309                case 0x2:       /* fail ... */
2310                        modem_state = 3;
2311                        break;
2312                default:        /* unknown */
2313                        modem_state = 4;
2314                        break;
2315                }
2316        } else
2317                modem_state = GET_STATUS(sc->stats.phy.state);
2318
2319        switch (modem_state) {
2320        case 0:
2321                ret = sprintf(buf, "Modem is booting\n");
2322                break;
2323        case 1:
2324                ret = sprintf(buf, "Modem is initializing\n");
2325                break;
2326        case 2:
2327                ret = sprintf(buf, "Modem is operational\n");
2328                break;
2329        case 3:
2330                ret = sprintf(buf, "Modem synchronization failed\n");
2331                break;
2332        default:
2333                ret = sprintf(buf, "Modem state is unknown\n");
2334                break;
2335        }
2336out:
2337        mutex_unlock(&uea_mutex);
2338        return ret;
2339}
2340
2341static DEVICE_ATTR_RO(stat_human_status);
2342
2343static ssize_t stat_delin_show(struct device *dev, struct device_attribute *attr,
2344                char *buf)
2345{
2346        int ret = -ENODEV;
2347        struct uea_softc *sc;
2348        char *delin = "GOOD";
2349
2350        mutex_lock(&uea_mutex);
2351        sc = dev_to_uea(dev);
2352        if (!sc)
2353                goto out;
2354
2355        if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2356                if (sc->stats.phy.flags & 0x4000)
2357                        delin = "RESET";
2358                else if (sc->stats.phy.flags & 0x0001)
2359                        delin = "LOSS";
2360        } else {
2361                if (sc->stats.phy.flags & 0x0C00)
2362                        delin = "ERROR";
2363                else if (sc->stats.phy.flags & 0x0030)
2364                        delin = "LOSS";
2365        }
2366
2367        ret = sprintf(buf, "%s\n", delin);
2368out:
2369        mutex_unlock(&uea_mutex);
2370        return ret;
2371}
2372
2373static DEVICE_ATTR_RO(stat_delin);
2374
2375#define UEA_ATTR(name, reset)                                   \
2376                                                                \
2377static ssize_t stat_##name##_show(struct device *dev,           \
2378                struct device_attribute *attr, char *buf)       \
2379{                                                               \
2380        int ret = -ENODEV;                                      \
2381        struct uea_softc *sc;                                   \
2382                                                                \
2383        mutex_lock(&uea_mutex);                                 \
2384        sc = dev_to_uea(dev);                                   \
2385        if (!sc)                                                \
2386                goto out;                                       \
2387        ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name);  \
2388        if (reset)                                              \
2389                sc->stats.phy.name = 0;                         \
2390out:                                                            \
2391        mutex_unlock(&uea_mutex);                               \
2392        return ret;                                             \
2393}                                                               \
2394                                                                \
2395static DEVICE_ATTR_RO(stat_##name)
2396
2397UEA_ATTR(mflags, 1);
2398UEA_ATTR(vidcpe, 0);
2399UEA_ATTR(usrate, 0);
2400UEA_ATTR(dsrate, 0);
2401UEA_ATTR(usattenuation, 0);
2402UEA_ATTR(dsattenuation, 0);
2403UEA_ATTR(usmargin, 0);
2404UEA_ATTR(dsmargin, 0);
2405UEA_ATTR(txflow, 0);
2406UEA_ATTR(rxflow, 0);
2407UEA_ATTR(uscorr, 0);
2408UEA_ATTR(dscorr, 0);
2409UEA_ATTR(usunc, 0);
2410UEA_ATTR(dsunc, 0);
2411UEA_ATTR(firmid, 0);
2412
2413/* Retrieve the device End System Identifier (MAC) */
2414
2415static int uea_getesi(struct uea_softc *sc, u_char *esi)
2416{
2417        unsigned char mac_str[2 * ETH_ALEN + 1];
2418        int i;
2419        if (usb_string
2420            (sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str,
2421             sizeof(mac_str)) != 2 * ETH_ALEN)
2422                return 1;
2423
2424        for (i = 0; i < ETH_ALEN; i++)
2425                esi[i] = hex_to_bin(mac_str[2 * i]) * 16 +
2426                         hex_to_bin(mac_str[2 * i + 1]);
2427
2428        return 0;
2429}
2430
2431/* ATM stuff */
2432static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
2433{
2434        struct uea_softc *sc = usbatm->driver_data;
2435
2436        return uea_getesi(sc, atm_dev->esi);
2437}
2438
2439static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
2440{
2441        struct uea_softc *sc = usbatm->driver_data;
2442
2443        wait_event_interruptible(sc->sync_q, IS_OPERATIONAL(sc));
2444
2445        return 0;
2446
2447}
2448
2449static int claim_interface(struct usb_device *usb_dev,
2450                           struct usbatm_data *usbatm, int ifnum)
2451{
2452        int ret;
2453        struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum);
2454
2455        if (!intf) {
2456                uea_err(usb_dev, "interface %d not found\n", ifnum);
2457                return -ENODEV;
2458        }
2459
2460        ret = usb_driver_claim_interface(&uea_driver, intf, usbatm);
2461        if (ret != 0)
2462                uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum,
2463                       ret);
2464        return ret;
2465}
2466
2467static struct attribute *uea_attrs[] = {
2468        &dev_attr_stat_status.attr,
2469        &dev_attr_stat_mflags.attr,
2470        &dev_attr_stat_human_status.attr,
2471        &dev_attr_stat_delin.attr,
2472        &dev_attr_stat_vidcpe.attr,
2473        &dev_attr_stat_usrate.attr,
2474        &dev_attr_stat_dsrate.attr,
2475        &dev_attr_stat_usattenuation.attr,
2476        &dev_attr_stat_dsattenuation.attr,
2477        &dev_attr_stat_usmargin.attr,
2478        &dev_attr_stat_dsmargin.attr,
2479        &dev_attr_stat_txflow.attr,
2480        &dev_attr_stat_rxflow.attr,
2481        &dev_attr_stat_uscorr.attr,
2482        &dev_attr_stat_dscorr.attr,
2483        &dev_attr_stat_usunc.attr,
2484        &dev_attr_stat_dsunc.attr,
2485        &dev_attr_stat_firmid.attr,
2486        NULL,
2487};
2488ATTRIBUTE_GROUPS(uea);
2489
2490static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
2491                   const struct usb_device_id *id)
2492{
2493        struct usb_device *usb = interface_to_usbdev(intf);
2494        struct uea_softc *sc;
2495        int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
2496        unsigned int alt;
2497
2498        uea_enters(usb);
2499
2500        /* interface 0 is for firmware/monitoring */
2501        if (ifnum != UEA_INTR_IFACE_NO)
2502                return -ENODEV;
2503
2504        usbatm->flags = (sync_wait[modem_index] ? 0 : UDSL_SKIP_HEAVY_INIT);
2505
2506        /* interface 1 is for outbound traffic */
2507        ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO);
2508        if (ret < 0)
2509                return ret;
2510
2511        /* ADI930 has only 2 interfaces and inbound traffic is on interface 1 */
2512        if (UEA_CHIP_VERSION(id) != ADI930) {
2513                /* interface 2 is for inbound traffic */
2514                ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO);
2515                if (ret < 0)
2516                        return ret;
2517        }
2518
2519        sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
2520        if (!sc)
2521                return -ENOMEM;
2522
2523        sc->usb_dev = usb;
2524        usbatm->driver_data = sc;
2525        sc->usbatm = usbatm;
2526        sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0;
2527        sc->driver_info = id->driver_info;
2528
2529        /* first try to use module parameter */
2530        if (annex[sc->modem_index] == 1)
2531                sc->annex = ANNEXA;
2532        else if (annex[sc->modem_index] == 2)
2533                sc->annex = ANNEXB;
2534        /* try to autodetect annex */
2535        else if (sc->driver_info & AUTO_ANNEX_A)
2536                sc->annex = ANNEXA;
2537        else if (sc->driver_info & AUTO_ANNEX_B)
2538                sc->annex = ANNEXB;
2539        else
2540                sc->annex = (le16_to_cpu
2541                (sc->usb_dev->descriptor.bcdDevice) & 0x80) ? ANNEXB : ANNEXA;
2542
2543        alt = altsetting[sc->modem_index];
2544        /* ADI930 don't support iso */
2545        if (UEA_CHIP_VERSION(id) != ADI930 && alt > 0) {
2546                if (alt <= 8 &&
2547                        usb_set_interface(usb, UEA_DS_IFACE_NO, alt) == 0) {
2548                        uea_dbg(usb, "set alternate %u for 2 interface\n", alt);
2549                        uea_info(usb, "using iso mode\n");
2550                        usbatm->flags |= UDSL_USE_ISOC | UDSL_IGNORE_EILSEQ;
2551                } else {
2552                        uea_err(usb, "setting alternate %u failed for "
2553                                        "2 interface, using bulk mode\n", alt);
2554                }
2555        }
2556
2557        ret = uea_boot(sc, intf);
2558        if (ret < 0)
2559                goto error;
2560
2561        return 0;
2562
2563error:
2564        kfree(sc);
2565        return ret;
2566}
2567
2568static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
2569{
2570        struct uea_softc *sc = usbatm->driver_data;
2571
2572        uea_stop(sc);
2573        kfree(sc);
2574}
2575
2576static struct usbatm_driver uea_usbatm_driver = {
2577        .driver_name = "ueagle-atm",
2578        .bind = uea_bind,
2579        .atm_start = uea_atm_open,
2580        .unbind = uea_unbind,
2581        .heavy_init = uea_heavy,
2582        .bulk_in = UEA_BULK_DATA_PIPE,
2583        .bulk_out = UEA_BULK_DATA_PIPE,
2584        .isoc_in = UEA_ISO_DATA_PIPE,
2585};
2586
2587static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
2588{
2589        struct usb_device *usb = interface_to_usbdev(intf);
2590        int ret;
2591
2592        uea_enters(usb);
2593        uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) Rev (%#X): %s\n",
2594                le16_to_cpu(usb->descriptor.idVendor),
2595                le16_to_cpu(usb->descriptor.idProduct),
2596                le16_to_cpu(usb->descriptor.bcdDevice),
2597                chip_name[UEA_CHIP_VERSION(id)]);
2598
2599        usb_reset_device(usb);
2600
2601        if (UEA_IS_PREFIRM(id))
2602                return uea_load_firmware(usb, UEA_CHIP_VERSION(id));
2603
2604        ret = usbatm_usb_probe(intf, id, &uea_usbatm_driver);
2605        if (ret == 0) {
2606                struct usbatm_data *usbatm = usb_get_intfdata(intf);
2607                struct uea_softc *sc = usbatm->driver_data;
2608
2609                /* Ensure carrier is initialized to off as early as possible */
2610                UPDATE_ATM_SIGNAL(ATM_PHY_SIG_LOST);
2611
2612                /* Only start the worker thread when all init is done */
2613                wake_up_process(sc->kthread);
2614        }
2615
2616        return ret;
2617}
2618
2619static void uea_disconnect(struct usb_interface *intf)
2620{
2621        struct usb_device *usb = interface_to_usbdev(intf);
2622        int ifnum = intf->altsetting->desc.bInterfaceNumber;
2623        uea_enters(usb);
2624
2625        /* ADI930 has 2 interfaces and eagle 3 interfaces.
2626         * Pre-firmware device has one interface
2627         */
2628        if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) {
2629                mutex_lock(&uea_mutex);
2630                usbatm_usb_disconnect(intf);
2631                mutex_unlock(&uea_mutex);
2632                uea_info(usb, "ADSL device removed\n");
2633        }
2634
2635        uea_leaves(usb);
2636}
2637
2638/*
2639 * List of supported VID/PID
2640 */
2641static const struct usb_device_id uea_ids[] = {
2642        {USB_DEVICE(ANALOG_VID, ADI930_PID_PREFIRM),
2643                .driver_info = ADI930 | PREFIRM},
2644        {USB_DEVICE(ANALOG_VID, ADI930_PID_PSTFIRM),
2645                .driver_info = ADI930 | PSTFIRM},
2646        {USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PREFIRM),
2647                .driver_info = EAGLE_I | PREFIRM},
2648        {USB_DEVICE(ANALOG_VID, EAGLE_I_PID_PSTFIRM),
2649                .driver_info = EAGLE_I | PSTFIRM},
2650        {USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PREFIRM),
2651                .driver_info = EAGLE_II | PREFIRM},
2652        {USB_DEVICE(ANALOG_VID, EAGLE_II_PID_PSTFIRM),
2653                .driver_info = EAGLE_II | PSTFIRM},
2654        {USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PREFIRM),
2655                .driver_info = EAGLE_II | PREFIRM},
2656        {USB_DEVICE(ANALOG_VID, EAGLE_IIC_PID_PSTFIRM),
2657                .driver_info = EAGLE_II | PSTFIRM},
2658        {USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PREFIRM),
2659                .driver_info = EAGLE_III | PREFIRM},
2660        {USB_DEVICE(ANALOG_VID, EAGLE_III_PID_PSTFIRM),
2661                .driver_info = EAGLE_III | PSTFIRM},
2662        {USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PREFIRM),
2663                .driver_info = EAGLE_IV | PREFIRM},
2664        {USB_DEVICE(ANALOG_VID, EAGLE_IV_PID_PSTFIRM),
2665                .driver_info = EAGLE_IV | PSTFIRM},
2666        {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PREFIRM),
2667                .driver_info = EAGLE_I | PREFIRM},
2668        {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_A_PID_PSTFIRM),
2669                .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
2670        {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PREFIRM),
2671                .driver_info = EAGLE_I | PREFIRM},
2672        {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_I_B_PID_PSTFIRM),
2673                .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
2674        {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PREFIRM),
2675                .driver_info = EAGLE_II | PREFIRM},
2676        {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_A_PID_PSTFIRM),
2677                .driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_A},
2678        {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PREFIRM),
2679                .driver_info = EAGLE_II | PREFIRM},
2680        {USB_DEVICE(DEVOLO_VID, DEVOLO_EAGLE_II_B_PID_PSTFIRM),
2681                .driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_B},
2682        {USB_DEVICE(ELSA_VID,   ELSA_PID_PREFIRM),
2683                .driver_info = ADI930 | PREFIRM},
2684        {USB_DEVICE(ELSA_VID,   ELSA_PID_PSTFIRM),
2685                .driver_info = ADI930 | PSTFIRM},
2686        {USB_DEVICE(ELSA_VID,   ELSA_PID_A_PREFIRM),
2687                .driver_info = ADI930 | PREFIRM},
2688        {USB_DEVICE(ELSA_VID,   ELSA_PID_A_PSTFIRM),
2689                .driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_A},
2690        {USB_DEVICE(ELSA_VID,   ELSA_PID_B_PREFIRM),
2691                .driver_info = ADI930 | PREFIRM},
2692        {USB_DEVICE(ELSA_VID,   ELSA_PID_B_PSTFIRM),
2693                .driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_B},
2694        {USB_DEVICE(USR_VID,    MILLER_A_PID_PREFIRM),
2695                .driver_info = EAGLE_I | PREFIRM},
2696        {USB_DEVICE(USR_VID,    MILLER_A_PID_PSTFIRM),
2697                .driver_info = EAGLE_I | PSTFIRM  | AUTO_ANNEX_A},
2698        {USB_DEVICE(USR_VID,    MILLER_B_PID_PREFIRM),
2699                .driver_info = EAGLE_I | PREFIRM},
2700        {USB_DEVICE(USR_VID,    MILLER_B_PID_PSTFIRM),
2701                .driver_info = EAGLE_I | PSTFIRM  | AUTO_ANNEX_B},
2702        {USB_DEVICE(USR_VID,    HEINEKEN_A_PID_PREFIRM),
2703                .driver_info = EAGLE_I | PREFIRM},
2704        {USB_DEVICE(USR_VID,    HEINEKEN_A_PID_PSTFIRM),
2705                .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
2706        {USB_DEVICE(USR_VID,    HEINEKEN_B_PID_PREFIRM),
2707                .driver_info = EAGLE_I | PREFIRM},
2708        {USB_DEVICE(USR_VID,    HEINEKEN_B_PID_PSTFIRM),
2709                .driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
2710        {}
2711};
2712
2713/*
2714 * USB driver descriptor
2715 */
2716static struct usb_driver uea_driver = {
2717        .name = "ueagle-atm",
2718        .id_table = uea_ids,
2719        .probe = uea_probe,
2720        .disconnect = uea_disconnect,
2721        .dev_groups = uea_groups,
2722};
2723
2724MODULE_DEVICE_TABLE(usb, uea_ids);
2725
2726module_usb_driver(uea_driver);
2727
2728MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka");
2729MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver");
2730MODULE_LICENSE("Dual BSD/GPL");
2731MODULE_FIRMWARE(EAGLE_FIRMWARE);
2732MODULE_FIRMWARE(ADI930_FIRMWARE);
2733MODULE_FIRMWARE(EAGLE_I_FIRMWARE);
2734MODULE_FIRMWARE(EAGLE_II_FIRMWARE);
2735MODULE_FIRMWARE(EAGLE_III_FIRMWARE);
2736MODULE_FIRMWARE(EAGLE_IV_FIRMWARE);
2737MODULE_FIRMWARE(DSP4I_FIRMWARE);
2738MODULE_FIRMWARE(DSP4P_FIRMWARE);
2739MODULE_FIRMWARE(DSP9I_FIRMWARE);
2740MODULE_FIRMWARE(DSP9P_FIRMWARE);
2741MODULE_FIRMWARE(DSPEI_FIRMWARE);
2742MODULE_FIRMWARE(DSPEP_FIRMWARE);
2743MODULE_FIRMWARE(FPGA930_FIRMWARE);
2744MODULE_FIRMWARE(CMV4P_FIRMWARE);
2745MODULE_FIRMWARE(CMV4PV2_FIRMWARE);
2746MODULE_FIRMWARE(CMV4I_FIRMWARE);
2747MODULE_FIRMWARE(CMV4IV2_FIRMWARE);
2748MODULE_FIRMWARE(CMV9P_FIRMWARE);
2749MODULE_FIRMWARE(CMV9PV2_FIRMWARE);
2750MODULE_FIRMWARE(CMV9I_FIRMWARE);
2751MODULE_FIRMWARE(CMV9IV2_FIRMWARE);
2752MODULE_FIRMWARE(CMVEP_FIRMWARE);
2753MODULE_FIRMWARE(CMVEPV2_FIRMWARE);
2754MODULE_FIRMWARE(CMVEI_FIRMWARE);
2755MODULE_FIRMWARE(CMVEIV2_FIRMWARE);
2756