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 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_freezable_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	}
1900	uea_leaves(INS_TO_USBDEV(sc));
1901	return ret;
1902}
1903
1904/* Load second usb firmware for ADI930 chip */
1905static int load_XILINX_firmware(struct uea_softc *sc)
1906{
1907	const struct firmware *fw_entry;
1908	int ret, size, u, ln;
1909	const u8 *pfw;
1910	u8 value;
1911	char *fw_name = FPGA930_FIRMWARE;
1912
1913	uea_enters(INS_TO_USBDEV(sc));
1914
1915	ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev);
1916	if (ret) {
1917		uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n",
1918		       fw_name);
1919		goto err0;
1920	}
1921
1922	pfw = fw_entry->data;
1923	size = fw_entry->size;
1924	if (size != 0x577B) {
1925		uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1926		       fw_name);
1927		ret = -EILSEQ;
1928		goto err1;
1929	}
1930	for (u = 0; u < size; u += ln) {
1931		ln = min(size - u, 64);
1932		ret = uea_request(sc, 0xe, 0, ln, pfw + u);
1933		if (ret < 0) {
1934			uea_err(INS_TO_USBDEV(sc),
1935			       "elsa download data failed (%d)\n", ret);
1936			goto err1;
1937		}
1938	}
1939
1940	/* finish to send the fpga */
1941	ret = uea_request(sc, 0xe, 1, 0, NULL);
1942	if (ret < 0) {
1943		uea_err(INS_TO_USBDEV(sc),
1944				"elsa download data failed (%d)\n", ret);
1945		goto err1;
1946	}
1947
1948	/* Tell the modem we finish : de-assert reset */
1949	value = 0;
1950	ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
1951	if (ret < 0)
1952		uea_err(sc->usb_dev, "elsa de-assert failed with error"
1953								" %d\n", ret);
1954
1955err1:
1956	release_firmware(fw_entry);
1957err0:
1958	uea_leaves(INS_TO_USBDEV(sc));
1959	return ret;
1960}
1961
1962/* The modem send us an ack. First with check if it right */
1963static void uea_dispatch_cmv_e1(struct uea_softc *sc, struct intr_pkt *intr)
1964{
1965	struct cmv_dsc_e1 *dsc = &sc->cmv_dsc.e1;
1966	struct cmv_e1 *cmv = &intr->u.e1.s2.cmv;
1967
1968	uea_enters(INS_TO_USBDEV(sc));
1969	if (le16_to_cpu(cmv->wPreamble) != E1_PREAMBLE)
1970		goto bad1;
1971
1972	if (cmv->bDirection != E1_MODEMTOHOST)
1973		goto bad1;
1974
1975	/* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
1976	 * the first MEMACCESS cmv. Ignore it...
1977	 */
1978	if (cmv->bFunction != dsc->function) {
1979		if (UEA_CHIP_VERSION(sc) == ADI930
1980				&& cmv->bFunction ==  E1_MAKEFUNCTION(2, 2)) {
1981			cmv->wIndex = cpu_to_le16(dsc->idx);
1982			put_unaligned_le32(dsc->address,
1983						&cmv->dwSymbolicAddress);
1984			cmv->wOffsetAddress = cpu_to_le16(dsc->offset);
1985		} else
1986			goto bad2;
1987	}
1988
1989	if (cmv->bFunction == E1_MAKEFUNCTION(E1_ADSLDIRECTIVE,
1990							E1_MODEMREADY)) {
1991		wake_up_cmv_ack(sc);
1992		uea_leaves(INS_TO_USBDEV(sc));
1993		return;
1994	}
1995
1996	/* in case of MEMACCESS */
1997	if (le16_to_cpu(cmv->wIndex) != dsc->idx ||
1998	    get_unaligned_le32(&cmv->dwSymbolicAddress) != dsc->address ||
1999	    le16_to_cpu(cmv->wOffsetAddress) != dsc->offset)
2000		goto bad2;
2001
2002	sc->data = get_unaligned_le32(&cmv->dwData);
2003	sc->data = sc->data << 16 | sc->data >> 16;
2004
2005	wake_up_cmv_ack(sc);
2006	uea_leaves(INS_TO_USBDEV(sc));
2007	return;
2008
2009bad2:
2010	uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
2011			"Function : %d, Subfunction : %d\n",
2012			E1_FUNCTION_TYPE(cmv->bFunction),
2013			E1_FUNCTION_SUBTYPE(cmv->bFunction));
2014	uea_leaves(INS_TO_USBDEV(sc));
2015	return;
2016
2017bad1:
2018	uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
2019			"wPreamble %d, bDirection %d\n",
2020			le16_to_cpu(cmv->wPreamble), cmv->bDirection);
2021	uea_leaves(INS_TO_USBDEV(sc));
2022}
2023
2024/* The modem send us an ack. First with check if it right */
2025static void uea_dispatch_cmv_e4(struct uea_softc *sc, struct intr_pkt *intr)
2026{
2027	struct cmv_dsc_e4 *dsc = &sc->cmv_dsc.e4;
2028	struct cmv_e4 *cmv = &intr->u.e4.s2.cmv;
2029
2030	uea_enters(INS_TO_USBDEV(sc));
2031	uea_dbg(INS_TO_USBDEV(sc), "cmv %x %x %x %x %x %x\n",
2032		be16_to_cpu(cmv->wGroup), be16_to_cpu(cmv->wFunction),
2033		be16_to_cpu(cmv->wOffset), be16_to_cpu(cmv->wAddress),
2034		be32_to_cpu(cmv->dwData[0]), be32_to_cpu(cmv->dwData[1]));
2035
2036	if (be16_to_cpu(cmv->wFunction) != dsc->function)
2037		goto bad2;
2038
2039	if (be16_to_cpu(cmv->wFunction) == E4_MAKEFUNCTION(E4_ADSLDIRECTIVE,
2040						E4_MODEMREADY, 1)) {
2041		wake_up_cmv_ack(sc);
2042		uea_leaves(INS_TO_USBDEV(sc));
2043		return;
2044	}
2045
2046	/* in case of MEMACCESS */
2047	if (be16_to_cpu(cmv->wOffset) != dsc->offset ||
2048	    be16_to_cpu(cmv->wGroup) != dsc->group ||
2049	    be16_to_cpu(cmv->wAddress) != dsc->address)
2050		goto bad2;
2051
2052	sc->data = be32_to_cpu(cmv->dwData[0]);
2053	sc->data1 = be32_to_cpu(cmv->dwData[1]);
2054	wake_up_cmv_ack(sc);
2055	uea_leaves(INS_TO_USBDEV(sc));
2056	return;
2057
2058bad2:
2059	uea_err(INS_TO_USBDEV(sc), "unexpected cmv received, "
2060			"Function : %d, Subfunction : %d\n",
2061			E4_FUNCTION_TYPE(cmv->wFunction),
2062			E4_FUNCTION_SUBTYPE(cmv->wFunction));
2063	uea_leaves(INS_TO_USBDEV(sc));
2064	return;
2065}
2066
2067static void uea_schedule_load_page_e1(struct uea_softc *sc,
2068						struct intr_pkt *intr)
2069{
2070	sc->pageno = intr->e1_bSwapPageNo;
2071	sc->ovl = intr->e1_bOvl >> 4 | intr->e1_bOvl << 4;
2072	schedule_work(&sc->task);
2073}
2074
2075static void uea_schedule_load_page_e4(struct uea_softc *sc,
2076						struct intr_pkt *intr)
2077{
2078	sc->pageno = intr->e4_bSwapPageNo;
2079	schedule_work(&sc->task);
2080}
2081
2082/*
2083 * interrupt handler
2084 */
2085static void uea_intr(struct urb *urb)
2086{
2087	struct uea_softc *sc = urb->context;
2088	struct intr_pkt *intr = urb->transfer_buffer;
2089	int status = urb->status;
2090
2091	uea_enters(INS_TO_USBDEV(sc));
2092
2093	if (unlikely(status < 0)) {
2094		uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n",
2095		       status);
2096		return;
2097	}
2098
2099	/* device-to-host interrupt */
2100	if (intr->bType != 0x08 || sc->booting) {
2101		uea_err(INS_TO_USBDEV(sc), "wrong interrupt\n");
2102		goto resubmit;
2103	}
2104
2105	switch (le16_to_cpu(intr->wInterrupt)) {
2106	case INT_LOADSWAPPAGE:
2107		sc->schedule_load_page(sc, intr);
2108		break;
2109
2110	case INT_INCOMINGCMV:
2111		sc->dispatch_cmv(sc, intr);
2112		break;
2113
2114	default:
2115		uea_err(INS_TO_USBDEV(sc), "unknown interrupt %u\n",
2116		       le16_to_cpu(intr->wInterrupt));
2117	}
2118
2119resubmit:
2120	usb_submit_urb(sc->urb_int, GFP_ATOMIC);
2121}
2122
2123/*
2124 * Start the modem : init the data and start kernel thread
2125 */
2126static int uea_boot(struct uea_softc *sc, struct usb_interface *intf)
2127{
2128	struct intr_pkt *intr;
2129	int ret = -ENOMEM;
2130	int size;
2131
2132	uea_enters(INS_TO_USBDEV(sc));
2133
2134	if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2135		size = E4_INTR_PKT_SIZE;
2136		sc->dispatch_cmv = uea_dispatch_cmv_e4;
2137		sc->schedule_load_page = uea_schedule_load_page_e4;
2138		sc->stat = uea_stat_e4;
2139		sc->send_cmvs = uea_send_cmvs_e4;
2140		INIT_WORK(&sc->task, uea_load_page_e4);
2141	} else {
2142		size = E1_INTR_PKT_SIZE;
2143		sc->dispatch_cmv = uea_dispatch_cmv_e1;
2144		sc->schedule_load_page = uea_schedule_load_page_e1;
2145		sc->stat = uea_stat_e1;
2146		sc->send_cmvs = uea_send_cmvs_e1;
2147		INIT_WORK(&sc->task, uea_load_page_e1);
2148	}
2149
2150	init_waitqueue_head(&sc->sync_q);
2151
2152	if (UEA_CHIP_VERSION(sc) == ADI930)
2153		load_XILINX_firmware(sc);
2154
2155	if (intf->cur_altsetting->desc.bNumEndpoints < 1) {
2156		ret = -ENODEV;
2157		goto err0;
2158	}
2159
2160	intr = kmalloc(size, GFP_KERNEL);
2161	if (!intr)
2162		goto err0;
2163
2164	sc->urb_int = usb_alloc_urb(0, GFP_KERNEL);
2165	if (!sc->urb_int)
2166		goto err1;
2167
2168	usb_fill_int_urb(sc->urb_int, sc->usb_dev,
2169			 usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
2170			 intr, size, uea_intr, sc,
2171			 intf->cur_altsetting->endpoint[0].desc.bInterval);
2172
2173	ret = usb_submit_urb(sc->urb_int, GFP_KERNEL);
2174	if (ret < 0) {
2175		uea_err(INS_TO_USBDEV(sc),
2176		       "urb submission failed with error %d\n", ret);
2177		goto err1;
2178	}
2179
2180	/* Create worker thread, but don't start it here.  Start it after
2181	 * all usbatm generic initialization is done.
2182	 */
2183	sc->kthread = kthread_create(uea_kthread, sc, "ueagle-atm");
2184	if (IS_ERR(sc->kthread)) {
2185		uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
2186		ret = PTR_ERR(sc->kthread);
2187		goto err2;
2188	}
2189
2190	uea_leaves(INS_TO_USBDEV(sc));
2191	return 0;
2192
2193err2:
2194	usb_kill_urb(sc->urb_int);
2195err1:
2196	usb_free_urb(sc->urb_int);
2197	sc->urb_int = NULL;
2198	kfree(intr);
2199err0:
2200	uea_leaves(INS_TO_USBDEV(sc));
2201	return ret;
2202}
2203
2204/*
2205 * Stop the modem : kill kernel thread and free data
2206 */
2207static void uea_stop(struct uea_softc *sc)
2208{
2209	int ret;
2210	uea_enters(INS_TO_USBDEV(sc));
2211	ret = kthread_stop(sc->kthread);
2212	uea_dbg(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret);
2213
2214	uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
2215
2216	usb_kill_urb(sc->urb_int);
2217	kfree(sc->urb_int->transfer_buffer);
2218	usb_free_urb(sc->urb_int);
2219
2220	/* flush the work item, when no one can schedule it */
2221	flush_work(&sc->task);
2222
2223	release_firmware(sc->dsp_firm);
2224	uea_leaves(INS_TO_USBDEV(sc));
2225}
2226
2227/* syfs interface */
2228static struct uea_softc *dev_to_uea(struct device *dev)
2229{
2230	struct usb_interface *intf;
2231	struct usbatm_data *usbatm;
2232
2233	intf = to_usb_interface(dev);
2234	if (!intf)
2235		return NULL;
2236
2237	usbatm = usb_get_intfdata(intf);
2238	if (!usbatm)
2239		return NULL;
2240
2241	return usbatm->driver_data;
2242}
2243
2244static ssize_t stat_status_show(struct device *dev, struct device_attribute *attr,
2245		char *buf)
2246{
2247	int ret = -ENODEV;
2248	struct uea_softc *sc;
2249
2250	mutex_lock(&uea_mutex);
2251	sc = dev_to_uea(dev);
2252	if (!sc)
2253		goto out;
2254	ret = sysfs_emit(buf, "%08x\n", sc->stats.phy.state);
2255out:
2256	mutex_unlock(&uea_mutex);
2257	return ret;
2258}
2259
2260static ssize_t stat_status_store(struct device *dev, struct device_attribute *attr,
2261		const char *buf, size_t count)
2262{
2263	int ret = -ENODEV;
2264	struct uea_softc *sc;
2265
2266	mutex_lock(&uea_mutex);
2267	sc = dev_to_uea(dev);
2268	if (!sc)
2269		goto out;
2270	sc->reset = 1;
2271	ret = count;
2272out:
2273	mutex_unlock(&uea_mutex);
2274	return ret;
2275}
2276
2277static DEVICE_ATTR_RW(stat_status);
2278
2279static ssize_t stat_human_status_show(struct device *dev,
2280			struct device_attribute *attr, char *buf)
2281{
2282	int ret = -ENODEV;
2283	int modem_state;
2284	struct uea_softc *sc;
2285
2286	mutex_lock(&uea_mutex);
2287	sc = dev_to_uea(dev);
2288	if (!sc)
2289		goto out;
2290
2291	if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2292		switch (sc->stats.phy.state) {
2293		case 0x0:	/* not yet synchronized */
2294		case 0x1:
2295		case 0x3:
2296		case 0x4:
2297			modem_state = 0;
2298			break;
2299		case 0x5:	/* initialization */
2300		case 0x6:
2301		case 0x9:
2302		case 0xa:
2303			modem_state = 1;
2304			break;
2305		case 0x7:	/* operational */
2306			modem_state = 2;
2307			break;
2308		case 0x2:	/* fail ... */
2309			modem_state = 3;
2310			break;
2311		default:	/* unknown */
2312			modem_state = 4;
2313			break;
2314		}
2315	} else
2316		modem_state = GET_STATUS(sc->stats.phy.state);
2317
2318	switch (modem_state) {
2319	case 0:
2320		ret = sysfs_emit(buf, "Modem is booting\n");
2321		break;
2322	case 1:
2323		ret = sysfs_emit(buf, "Modem is initializing\n");
2324		break;
2325	case 2:
2326		ret = sysfs_emit(buf, "Modem is operational\n");
2327		break;
2328	case 3:
2329		ret = sysfs_emit(buf, "Modem synchronization failed\n");
2330		break;
2331	default:
2332		ret = sysfs_emit(buf, "Modem state is unknown\n");
2333		break;
2334	}
2335out:
2336	mutex_unlock(&uea_mutex);
2337	return ret;
2338}
2339
2340static DEVICE_ATTR_RO(stat_human_status);
2341
2342static ssize_t stat_delin_show(struct device *dev, struct device_attribute *attr,
2343		char *buf)
2344{
2345	int ret = -ENODEV;
2346	struct uea_softc *sc;
2347	char *delin = "GOOD";
2348
2349	mutex_lock(&uea_mutex);
2350	sc = dev_to_uea(dev);
2351	if (!sc)
2352		goto out;
2353
2354	if (UEA_CHIP_VERSION(sc) == EAGLE_IV) {
2355		if (sc->stats.phy.flags & 0x4000)
2356			delin = "RESET";
2357		else if (sc->stats.phy.flags & 0x0001)
2358			delin = "LOSS";
2359	} else {
2360		if (sc->stats.phy.flags & 0x0C00)
2361			delin = "ERROR";
2362		else if (sc->stats.phy.flags & 0x0030)
2363			delin = "LOSS";
2364	}
2365
2366	ret = sysfs_emit(buf, "%s\n", delin);
2367out:
2368	mutex_unlock(&uea_mutex);
2369	return ret;
2370}
2371
2372static DEVICE_ATTR_RO(stat_delin);
2373
2374#define UEA_ATTR(name, reset)					\
2375								\
2376static ssize_t stat_##name##_show(struct device *dev,		\
2377		struct device_attribute *attr, char *buf)	\
2378{								\
2379	int ret = -ENODEV;					\
2380	struct uea_softc *sc;					\
2381								\
2382	mutex_lock(&uea_mutex);					\
2383	sc = dev_to_uea(dev);					\
2384	if (!sc)						\
2385		goto out;					\
2386	ret = sysfs_emit(buf, "%08x\n", sc->stats.phy.name);	\
2387	if (reset)						\
2388		sc->stats.phy.name = 0;				\
2389out:								\
2390	mutex_unlock(&uea_mutex);				\
2391	return ret;						\
2392}								\
2393								\
2394static DEVICE_ATTR_RO(stat_##name)
2395
2396UEA_ATTR(mflags, 1);
2397UEA_ATTR(vidcpe, 0);
2398UEA_ATTR(usrate, 0);
2399UEA_ATTR(dsrate, 0);
2400UEA_ATTR(usattenuation, 0);
2401UEA_ATTR(dsattenuation, 0);
2402UEA_ATTR(usmargin, 0);
2403UEA_ATTR(dsmargin, 0);
2404UEA_ATTR(txflow, 0);
2405UEA_ATTR(rxflow, 0);
2406UEA_ATTR(uscorr, 0);
2407UEA_ATTR(dscorr, 0);
2408UEA_ATTR(usunc, 0);
2409UEA_ATTR(dsunc, 0);
2410UEA_ATTR(firmid, 0);
2411
2412/* Retrieve the device End System Identifier (MAC) */
2413
2414static int uea_getesi(struct uea_softc *sc, u_char *esi)
2415{
2416	unsigned char mac_str[2 * ETH_ALEN + 1];
2417	int i;
2418	if (usb_string
2419	    (sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str,
2420	     sizeof(mac_str)) != 2 * ETH_ALEN)
2421		return 1;
2422
2423	for (i = 0; i < ETH_ALEN; i++)
2424		esi[i] = hex_to_bin(mac_str[2 * i]) * 16 +
2425			 hex_to_bin(mac_str[2 * i + 1]);
2426
2427	return 0;
2428}
2429
2430/* ATM stuff */
2431static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
2432{
2433	struct uea_softc *sc = usbatm->driver_data;
2434
2435	return uea_getesi(sc, atm_dev->esi);
2436}
2437
2438static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
2439{
2440	struct uea_softc *sc = usbatm->driver_data;
2441
2442	wait_event_interruptible(sc->sync_q, IS_OPERATIONAL(sc));
2443
2444	return 0;
2445
2446}
2447
2448static int claim_interface(struct usb_device *usb_dev,
2449			   struct usbatm_data *usbatm, int ifnum)
2450{
2451	int ret;
2452	struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum);
2453
2454	if (!intf) {
2455		uea_err(usb_dev, "interface %d not found\n", ifnum);
2456		return -ENODEV;
2457	}
2458
2459	ret = usb_driver_claim_interface(&uea_driver, intf, usbatm);
2460	if (ret != 0)
2461		uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum,
2462		       ret);
2463	return ret;
2464}
2465
2466static struct attribute *uea_attrs[] = {
2467	&dev_attr_stat_status.attr,
2468	&dev_attr_stat_mflags.attr,
2469	&dev_attr_stat_human_status.attr,
2470	&dev_attr_stat_delin.attr,
2471	&dev_attr_stat_vidcpe.attr,
2472	&dev_attr_stat_usrate.attr,
2473	&dev_attr_stat_dsrate.attr,
2474	&dev_attr_stat_usattenuation.attr,
2475	&dev_attr_stat_dsattenuation.attr,
2476	&dev_attr_stat_usmargin.attr,
2477	&dev_attr_stat_dsmargin.attr,
2478	&dev_attr_stat_txflow.attr,
2479	&dev_attr_stat_rxflow.attr,
2480	&dev_attr_stat_uscorr.attr,
2481	&dev_attr_stat_dscorr.attr,
2482	&dev_attr_stat_usunc.attr,
2483	&dev_attr_stat_dsunc.attr,
2484	&dev_attr_stat_firmid.attr,
2485	NULL,
2486};
2487ATTRIBUTE_GROUPS(uea);
2488
2489static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
2490		   const struct usb_device_id *id)
2491{
2492	struct usb_device *usb = interface_to_usbdev(intf);
2493	struct uea_softc *sc;
2494	int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
2495	unsigned int alt;
2496
2497	uea_enters(usb);
2498
2499	/* interface 0 is for firmware/monitoring */
2500	if (ifnum != UEA_INTR_IFACE_NO)
2501		return -ENODEV;
2502
2503	usbatm->flags = (sync_wait[modem_index] ? 0 : UDSL_SKIP_HEAVY_INIT);
2504
2505	/* interface 1 is for outbound traffic */
2506	ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO);
2507	if (ret < 0)
2508		return ret;
2509
2510	/* ADI930 has only 2 interfaces and inbound traffic is on interface 1 */
2511	if (UEA_CHIP_VERSION(id) != ADI930) {
2512		/* interface 2 is for inbound traffic */
2513		ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO);
2514		if (ret < 0)
2515			return ret;
2516	}
2517
2518	sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
2519	if (!sc)
2520		return -ENOMEM;
2521
2522	sc->usb_dev = usb;
2523	usbatm->driver_data = sc;
2524	sc->usbatm = usbatm;
2525	sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0;
2526	sc->driver_info = id->driver_info;
2527
2528	/* first try to use module parameter */
2529	if (annex[sc->modem_index] == 1)
2530		sc->annex = ANNEXA;
2531	else if (annex[sc->modem_index] == 2)
2532		sc->annex = ANNEXB;
2533	/* try to autodetect annex */
2534	else if (sc->driver_info & AUTO_ANNEX_A)
2535		sc->annex = ANNEXA;
2536	else if (sc->driver_info & AUTO_ANNEX_B)
2537		sc->annex = ANNEXB;
2538	else
2539		sc->annex = (le16_to_cpu
2540		(sc->usb_dev->descriptor.bcdDevice) & 0x80) ? ANNEXB : ANNEXA;
2541
2542	alt = altsetting[sc->modem_index];
2543	/* ADI930 don't support iso */
2544	if (UEA_CHIP_VERSION(id) != ADI930 && alt > 0) {
2545		if (alt <= 8 &&
2546			usb_set_interface(usb, UEA_DS_IFACE_NO, alt) == 0) {
2547			uea_dbg(usb, "set alternate %u for 2 interface\n", alt);
2548			uea_info(usb, "using iso mode\n");
2549			usbatm->flags |= UDSL_USE_ISOC | UDSL_IGNORE_EILSEQ;
2550		} else {
2551			uea_err(usb, "setting alternate %u failed for "
2552					"2 interface, using bulk mode\n", alt);
2553		}
2554	}
2555
2556	ret = uea_boot(sc, intf);
2557	if (ret < 0)
2558		goto error;
2559
2560	return 0;
2561
2562error:
2563	kfree(sc);
2564	return ret;
2565}
2566
2567static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
2568{
2569	struct uea_softc *sc = usbatm->driver_data;
2570
2571	uea_stop(sc);
2572	kfree(sc);
2573}
2574
2575static struct usbatm_driver uea_usbatm_driver = {
2576	.driver_name = "ueagle-atm",
2577	.bind = uea_bind,
2578	.atm_start = uea_atm_open,
2579	.unbind = uea_unbind,
2580	.heavy_init = uea_heavy,
2581	.bulk_in = UEA_BULK_DATA_PIPE,
2582	.bulk_out = UEA_BULK_DATA_PIPE,
2583	.isoc_in = UEA_ISO_DATA_PIPE,
2584};
2585
2586static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
2587{
2588	struct usb_device *usb = interface_to_usbdev(intf);
2589	int ret;
2590
2591	uea_enters(usb);
2592	uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) Rev (%#X): %s\n",
2593		le16_to_cpu(usb->descriptor.idVendor),
2594		le16_to_cpu(usb->descriptor.idProduct),
2595		le16_to_cpu(usb->descriptor.bcdDevice),
2596		chip_name[UEA_CHIP_VERSION(id)]);
2597
2598	usb_reset_device(usb);
2599
2600	if (UEA_IS_PREFIRM(id))
2601		return uea_load_firmware(usb, UEA_CHIP_VERSION(id));
2602
2603	ret = usbatm_usb_probe(intf, id, &uea_usbatm_driver);
2604	if (ret == 0) {
2605		struct usbatm_data *usbatm = usb_get_intfdata(intf);
2606		struct uea_softc *sc = usbatm->driver_data;
2607
2608		/* Ensure carrier is initialized to off as early as possible */
2609		UPDATE_ATM_SIGNAL(ATM_PHY_SIG_LOST);
2610
2611		/* Only start the worker thread when all init is done */
2612		wake_up_process(sc->kthread);
2613	}
2614
2615	return ret;
2616}
2617
2618static void uea_disconnect(struct usb_interface *intf)
2619{
2620	struct usb_device *usb = interface_to_usbdev(intf);
2621	int ifnum = intf->altsetting->desc.bInterfaceNumber;
2622	uea_enters(usb);
2623
2624	/* ADI930 has 2 interfaces and eagle 3 interfaces.
2625	 * Pre-firmware device has one interface
2626	 */
2627	if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) {
2628		mutex_lock(&uea_mutex);
2629		usbatm_usb_disconnect(intf);
2630		mutex_unlock(&uea_mutex);
2631		uea_info(usb, "ADSL device removed\n");
2632	}
2633
2634	uea_leaves(usb);
2635}
2636
2637/*
2638 * List of supported VID/PID
2639 */
2640static const struct usb_device_id uea_ids[] = {
2641	{USB_DEVICE(ANALOG_VID,	ADI930_PID_PREFIRM),
2642		.driver_info = ADI930 | PREFIRM},
2643	{USB_DEVICE(ANALOG_VID,	ADI930_PID_PSTFIRM),
2644		.driver_info = ADI930 | PSTFIRM},
2645	{USB_DEVICE(ANALOG_VID,	EAGLE_I_PID_PREFIRM),
2646		.driver_info = EAGLE_I | PREFIRM},
2647	{USB_DEVICE(ANALOG_VID,	EAGLE_I_PID_PSTFIRM),
2648		.driver_info = EAGLE_I | PSTFIRM},
2649	{USB_DEVICE(ANALOG_VID,	EAGLE_II_PID_PREFIRM),
2650		.driver_info = EAGLE_II | PREFIRM},
2651	{USB_DEVICE(ANALOG_VID,	EAGLE_II_PID_PSTFIRM),
2652		.driver_info = EAGLE_II | PSTFIRM},
2653	{USB_DEVICE(ANALOG_VID,	EAGLE_IIC_PID_PREFIRM),
2654		.driver_info = EAGLE_II | PREFIRM},
2655	{USB_DEVICE(ANALOG_VID,	EAGLE_IIC_PID_PSTFIRM),
2656		.driver_info = EAGLE_II | PSTFIRM},
2657	{USB_DEVICE(ANALOG_VID,	EAGLE_III_PID_PREFIRM),
2658		.driver_info = EAGLE_III | PREFIRM},
2659	{USB_DEVICE(ANALOG_VID,	EAGLE_III_PID_PSTFIRM),
2660		.driver_info = EAGLE_III | PSTFIRM},
2661	{USB_DEVICE(ANALOG_VID,	EAGLE_IV_PID_PREFIRM),
2662		.driver_info = EAGLE_IV | PREFIRM},
2663	{USB_DEVICE(ANALOG_VID,	EAGLE_IV_PID_PSTFIRM),
2664		.driver_info = EAGLE_IV | PSTFIRM},
2665	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_I_A_PID_PREFIRM),
2666		.driver_info = EAGLE_I | PREFIRM},
2667	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_I_A_PID_PSTFIRM),
2668		.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
2669	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_I_B_PID_PREFIRM),
2670		.driver_info = EAGLE_I | PREFIRM},
2671	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_I_B_PID_PSTFIRM),
2672		.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
2673	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_II_A_PID_PREFIRM),
2674		.driver_info = EAGLE_II | PREFIRM},
2675	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_II_A_PID_PSTFIRM),
2676		.driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_A},
2677	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_II_B_PID_PREFIRM),
2678		.driver_info = EAGLE_II | PREFIRM},
2679	{USB_DEVICE(DEVOLO_VID,	DEVOLO_EAGLE_II_B_PID_PSTFIRM),
2680		.driver_info = EAGLE_II | PSTFIRM | AUTO_ANNEX_B},
2681	{USB_DEVICE(ELSA_VID,	ELSA_PID_PREFIRM),
2682		.driver_info = ADI930 | PREFIRM},
2683	{USB_DEVICE(ELSA_VID,	ELSA_PID_PSTFIRM),
2684		.driver_info = ADI930 | PSTFIRM},
2685	{USB_DEVICE(ELSA_VID,	ELSA_PID_A_PREFIRM),
2686		.driver_info = ADI930 | PREFIRM},
2687	{USB_DEVICE(ELSA_VID,	ELSA_PID_A_PSTFIRM),
2688		.driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_A},
2689	{USB_DEVICE(ELSA_VID,	ELSA_PID_B_PREFIRM),
2690		.driver_info = ADI930 | PREFIRM},
2691	{USB_DEVICE(ELSA_VID,	ELSA_PID_B_PSTFIRM),
2692		.driver_info = ADI930 | PSTFIRM | AUTO_ANNEX_B},
2693	{USB_DEVICE(USR_VID,	MILLER_A_PID_PREFIRM),
2694		.driver_info = EAGLE_I | PREFIRM},
2695	{USB_DEVICE(USR_VID,	MILLER_A_PID_PSTFIRM),
2696		.driver_info = EAGLE_I | PSTFIRM  | AUTO_ANNEX_A},
2697	{USB_DEVICE(USR_VID,	MILLER_B_PID_PREFIRM),
2698		.driver_info = EAGLE_I | PREFIRM},
2699	{USB_DEVICE(USR_VID,	MILLER_B_PID_PSTFIRM),
2700		.driver_info = EAGLE_I | PSTFIRM  | AUTO_ANNEX_B},
2701	{USB_DEVICE(USR_VID,	HEINEKEN_A_PID_PREFIRM),
2702		.driver_info = EAGLE_I | PREFIRM},
2703	{USB_DEVICE(USR_VID,	HEINEKEN_A_PID_PSTFIRM),
2704		.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_A},
2705	{USB_DEVICE(USR_VID,	HEINEKEN_B_PID_PREFIRM),
2706		.driver_info = EAGLE_I | PREFIRM},
2707	{USB_DEVICE(USR_VID,	HEINEKEN_B_PID_PSTFIRM),
2708		.driver_info = EAGLE_I | PSTFIRM | AUTO_ANNEX_B},
2709	{}
2710};
2711
2712/*
2713 * USB driver descriptor
2714 */
2715static struct usb_driver uea_driver = {
2716	.name = "ueagle-atm",
2717	.id_table = uea_ids,
2718	.probe = uea_probe,
2719	.disconnect = uea_disconnect,
2720	.dev_groups = uea_groups,
2721};
2722
2723MODULE_DEVICE_TABLE(usb, uea_ids);
2724
2725module_usb_driver(uea_driver);
2726
2727MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka");
2728MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver");
2729MODULE_LICENSE("Dual BSD/GPL");
2730MODULE_FIRMWARE(EAGLE_FIRMWARE);
2731MODULE_FIRMWARE(ADI930_FIRMWARE);
2732MODULE_FIRMWARE(EAGLE_I_FIRMWARE);
2733MODULE_FIRMWARE(EAGLE_II_FIRMWARE);
2734MODULE_FIRMWARE(EAGLE_III_FIRMWARE);
2735MODULE_FIRMWARE(EAGLE_IV_FIRMWARE);
2736MODULE_FIRMWARE(DSP4I_FIRMWARE);
2737MODULE_FIRMWARE(DSP4P_FIRMWARE);
2738MODULE_FIRMWARE(DSP9I_FIRMWARE);
2739MODULE_FIRMWARE(DSP9P_FIRMWARE);
2740MODULE_FIRMWARE(DSPEI_FIRMWARE);
2741MODULE_FIRMWARE(DSPEP_FIRMWARE);
2742MODULE_FIRMWARE(FPGA930_FIRMWARE);
2743MODULE_FIRMWARE(CMV4P_FIRMWARE);
2744MODULE_FIRMWARE(CMV4PV2_FIRMWARE);
2745MODULE_FIRMWARE(CMV4I_FIRMWARE);
2746MODULE_FIRMWARE(CMV4IV2_FIRMWARE);
2747MODULE_FIRMWARE(CMV9P_FIRMWARE);
2748MODULE_FIRMWARE(CMV9PV2_FIRMWARE);
2749MODULE_FIRMWARE(CMV9I_FIRMWARE);
2750MODULE_FIRMWARE(CMV9IV2_FIRMWARE);
2751MODULE_FIRMWARE(CMVEP_FIRMWARE);
2752MODULE_FIRMWARE(CMVEPV2_FIRMWARE);
2753MODULE_FIRMWARE(CMVEI_FIRMWARE);
2754MODULE_FIRMWARE(CMVEIV2_FIRMWARE);