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[PATCH] USB: Eagle and ADI 930 usb adsl modem driver
[deliverable/linux.git] / drivers / usb / atm / ueagle-atm.c
CommitLineData
b72458a8 1/*-
2 * Copyright (c) 2003, 2004
3 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
4 *
5 * Copyright (c) 2005 Matthieu Castet <castet.matthieu@free.fr>
6 *
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice unmodified, this list of conditions, and the following
18 * disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * GPL license :
36 * This program is free software; you can redistribute it and/or
37 * modify it under the terms of the GNU General Public License
38 * as published by the Free Software Foundation; either version 2
39 * of the License, or (at your option) any later version.
40 *
41 * This program is distributed in the hope that it will be useful,
42 * but WITHOUT ANY WARRANTY; without even the implied warranty of
43 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
44 * GNU General Public License for more details.
45 *
46 * You should have received a copy of the GNU General Public License
47 * along with this program; if not, write to the Free Software
48 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
49 *
50 *
51 * HISTORY : some part of the code was base on ueagle 1.3 BSD driver,
52 * Damien Bergamini agree to put his code under a DUAL GPL/BSD license.
53 *
54 * The rest of the code was was rewritten from scratch.
55 */
56
57#include <linux/module.h>
58#include <linux/moduleparam.h>
59#include <linux/init.h>
60#include <linux/crc32.h>
61#include <linux/usb.h>
62#include <linux/firmware.h>
63#include <linux/ctype.h>
64#include <linux/kthread.h>
65#include <linux/version.h>
66#include <asm/unaligned.h>
67
68#include "usbatm.h"
69
70#define EAGLEUSBVERSION "ueagle 1.1"
71
72
73/*
74 * Debug macros
75 */
76#define uea_dbg(usb_dev, format, args...) \
77 do { \
78 if (debug >= 1) \
79 dev_dbg(&(usb_dev)->dev, \
80 "[ueagle-atm dbg] %s: " format, \
81 __FUNCTION__, ##args); \
82 } while (0)
83
84#define uea_vdbg(usb_dev, format, args...) \
85 do { \
86 if (debug >= 2) \
87 dev_dbg(&(usb_dev)->dev, \
88 "[ueagle-atm vdbg] " format, ##args); \
89 } while (0)
90
91#define uea_enters(usb_dev) \
92 uea_vdbg(usb_dev, "entering %s\n", __FUNCTION__)
93
94#define uea_leaves(usb_dev) \
95 uea_vdbg(usb_dev, "leaving %s\n", __FUNCTION__)
96
97#define uea_err(usb_dev, format,args...) \
98 dev_err(&(usb_dev)->dev ,"[UEAGLE-ATM] " format , ##args)
99
100#define uea_warn(usb_dev, format,args...) \
101 dev_warn(&(usb_dev)->dev ,"[Ueagle-atm] " format, ##args)
102
103#define uea_info(usb_dev, format,args...) \
104 dev_info(&(usb_dev)->dev ,"[ueagle-atm] " format, ##args)
105
106struct uea_cmvs {
107 u32 address;
108 u16 offset;
109 u32 data;
110} __attribute__ ((packed));
111
112struct uea_softc {
113 struct usb_device *usb_dev;
114 struct usbatm_data *usbatm;
115
116 int modem_index;
117 unsigned int driver_info;
118
119 int booting;
120 int reset;
121
122 wait_queue_head_t sync_q;
123
124 struct task_struct *kthread;
125 u32 data;
126 wait_queue_head_t cmv_ack_wait;
127 int cmv_ack;
128
129 struct work_struct task;
130 u16 pageno;
131 u16 ovl;
132
133 const struct firmware *dsp_firm;
134 struct urb *urb_int;
135
136 u8 cmv_function;
137 u16 cmv_idx;
138 u32 cmv_address;
139 u16 cmv_offset;
140
141 /* keep in sync with eaglectl */
142 struct uea_stats {
143 struct {
144 u32 state;
145 u32 flags;
146 u32 mflags;
147 u32 vidcpe;
148 u32 vidco;
149 u32 dsrate;
150 u32 usrate;
151 u32 dsunc;
152 u32 usunc;
153 u32 dscorr;
154 u32 uscorr;
155 u32 txflow;
156 u32 rxflow;
157 u32 usattenuation;
158 u32 dsattenuation;
159 u32 dsmargin;
160 u32 usmargin;
161 u32 firmid;
162 } phy;
163 } stats;
164};
165
166/*
167 * Elsa IDs
168 */
169#define ELSA_VID 0x05CC
170#define ELSA_PID_PSTFIRM 0x3350
171#define ELSA_PID_PREFIRM 0x3351
172
173/*
174 * Sagem USB IDs
175 */
176#define EAGLE_VID 0x1110
177#define EAGLE_I_PID_PREFIRM 0x9010 /* Eagle I */
178#define EAGLE_I_PID_PSTFIRM 0x900F /* Eagle I */
179
180#define EAGLE_IIC_PID_PREFIRM 0x9024 /* Eagle IIC */
181#define EAGLE_IIC_PID_PSTFIRM 0x9023 /* Eagle IIC */
182
183#define EAGLE_II_PID_PREFIRM 0x9022 /* Eagle II */
184#define EAGLE_II_PID_PSTFIRM 0x9021 /* Eagle II */
185
186/*
187 * Eagle III Pid
188 */
189#define EAGLE_III_PID_PREFIRM 0x9032 /* Eagle III */
190#define EAGLE_III_PID_PSTFIRM 0x9031 /* Eagle III */
191
192/*
193 * USR USB IDs
194 */
195#define USR_VID 0x0BAF
196#define MILLER_A_PID_PREFIRM 0x00F2
197#define MILLER_A_PID_PSTFIRM 0x00F1
198#define MILLER_B_PID_PREFIRM 0x00FA
199#define MILLER_B_PID_PSTFIRM 0x00F9
200#define HEINEKEN_A_PID_PREFIRM 0x00F6
201#define HEINEKEN_A_PID_PSTFIRM 0x00F5
202#define HEINEKEN_B_PID_PREFIRM 0x00F8
203#define HEINEKEN_B_PID_PSTFIRM 0x00F7
204
205#define PREFIRM 0
206#define PSTFIRM (1<<7)
207enum {
208 ADI930 = 0,
209 EAGLE_I,
210 EAGLE_II,
211 EAGLE_III
212};
213
214/* macros for both struct usb_device_id and struct uea_softc */
215#define UEA_IS_PREFIRM(x) \
216 (!((x)->driver_info & PSTFIRM))
217#define UEA_CHIP_VERSION(x) \
218 ((x)->driver_info & 0xf)
219
220#define IS_ISDN(sc) \
221 (le16_to_cpu(sc->usb_dev->descriptor.bcdDevice) & 0x80)
222
223#define INS_TO_USBDEV(ins) ins->usb_dev
224
225#define GET_STATUS(data) \
226 ((data >> 8) & 0xf)
227#define IS_OPERATIONAL(sc) \
228 (GET_STATUS(sc->stats.phy.state) == 2)
229
230/*
231 * Set of macros to handle unaligned data in the firmware blob.
232 * The FW_GET_BYTE() macro is provided only for consistency.
233 */
234
235#define FW_GET_BYTE(p) *((__u8 *) (p))
236#define FW_GET_WORD(p) le16_to_cpu(get_unaligned((__le16 *) (p)))
237#define FW_GET_LONG(p) le32_to_cpu(get_unaligned((__le32 *) (p)))
238
239#define FW_DIR "ueagle-atm/"
240#define NB_MODEM 4
241
242#define BULK_TIMEOUT 300
243#define CTRL_TIMEOUT 1000
244
245#define ACK_TIMEOUT msecs_to_jiffies(1500)
246
247#define UEA_INTR_IFACE_NO 0
248#define UEA_US_IFACE_NO 1
249#define UEA_DS_IFACE_NO 2
250
251#define FASTEST_ISO_INTF 8
252
253#define UEA_BULK_DATA_PIPE 0x02
254#define UEA_IDMA_PIPE 0x04
255#define UEA_INTR_PIPE 0x04
256#define UEA_ISO_DATA_PIPE 0x08
257
258#define UEA_SET_BLOCK 0x0001
259#define UEA_SET_MODE 0x0003
260#define UEA_SET_2183_DATA 0x0004
261#define UEA_SET_TIMEOUT 0x0011
262
263#define UEA_LOOPBACK_OFF 0x0002
264#define UEA_LOOPBACK_ON 0x0003
265#define UEA_BOOT_IDMA 0x0006
266#define UEA_START_RESET 0x0007
267#define UEA_END_RESET 0x0008
268
269#define UEA_SWAP_MAILBOX (0x3fcd | 0x4000)
270#define UEA_MPTX_START (0x3fce | 0x4000)
271#define UEA_MPTX_MAILBOX (0x3fd6 | 0x4000)
272#define UEA_MPRX_MAILBOX (0x3fdf | 0x4000)
273
274/* structure describing a block within a DSP page */
275struct block_info {
276 __le16 wHdr;
277#define UEA_BIHDR 0xabcd
278 __le16 wAddress;
279 __le16 wSize;
280 __le16 wOvlOffset;
281 __le16 wOvl; /* overlay */
282 __le16 wLast;
283} __attribute__ ((packed));
284#define BLOCK_INFO_SIZE 12
285
286/* structure representing a CMV (Configuration and Management Variable) */
287struct cmv {
288 __le16 wPreamble;
289#define PREAMBLE 0x535c
290 __u8 bDirection;
291#define MODEMTOHOST 0x01
292#define HOSTTOMODEM 0x10
293 __u8 bFunction;
294#define FUNCTION_TYPE(f) ((f) >> 4)
295#define MEMACCESS 0x1
296#define ADSLDIRECTIVE 0x7
297
298#define FUNCTION_SUBTYPE(f) ((f) & 0x0f)
299/* for MEMACCESS */
300#define REQUESTREAD 0x0
301#define REQUESTWRITE 0x1
302#define REPLYREAD 0x2
303#define REPLYWRITE 0x3
304/* for ADSLDIRECTIVE */
305#define KERNELREADY 0x0
306#define MODEMREADY 0x1
307
308#define MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf))
309 __le16 wIndex;
310 __le32 dwSymbolicAddress;
311#define MAKESA(a, b, c, d) \
312 (((c) & 0xff) << 24 | \
313 ((d) & 0xff) << 16 | \
314 ((a) & 0xff) << 8 | \
315 ((b) & 0xff))
316
317#define SA_CNTL MAKESA('C', 'N', 'T', 'L')
318#define SA_DIAG MAKESA('D', 'I', 'A', 'G')
319#define SA_INFO MAKESA('I', 'N', 'F', 'O')
320#define SA_OPTN MAKESA('O', 'P', 'T', 'N')
321#define SA_RATE MAKESA('R', 'A', 'T', 'E')
322#define SA_STAT MAKESA('S', 'T', 'A', 'T')
323 __le16 wOffsetAddress;
324 __le32 dwData;
325} __attribute__ ((packed));
326#define CMV_SIZE 16
327
328/* structure representing swap information */
329struct swap_info {
330 __u8 bSwapPageNo;
331 __u8 bOvl; /* overlay */
332} __attribute__ ((packed));
333
334/* structure representing interrupt data */
335struct intr_pkt {
336 __u8 bType;
337 __u8 bNotification;
338 __le16 wValue;
339 __le16 wIndex;
340 __le16 wLength;
341 __le16 wInterrupt;
342#define INT_LOADSWAPPAGE 0x0001
343#define INT_INCOMINGCMV 0x0002
344 union {
345 struct {
346 struct swap_info swapinfo;
347 __le16 wDataSize;
348 } __attribute__ ((packed)) s1;
349
350 struct {
351 struct cmv cmv;
352 __le16 wDataSize;
353 } __attribute__ ((packed)) s2;
354 } __attribute__ ((packed)) u;
355#define bSwapPageNo u.s1.swapinfo.bSwapPageNo
356#define bOvl u.s1.swapinfo.bOvl
357} __attribute__ ((packed));
358#define INTR_PKT_SIZE 28
359
360static struct usb_driver uea_driver;
361static DECLARE_MUTEX(uea_semaphore);
362static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III"};
363
364static int modem_index;
365static unsigned int debug;
366static int sync_wait[NB_MODEM];
367static char *cmv_file[NB_MODEM];
368
369module_param(debug, uint, 0644);
370MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)");
371module_param_array(sync_wait, bool, NULL, 0644);
372MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM");
373module_param_array(cmv_file, charp, NULL, 0644);
374MODULE_PARM_DESC(cmv_file,
375 "file name with configuration and management variables");
376
377#define UPDATE_ATM_STAT(type, val) \
378 do { \
379 if (sc->usbatm->atm_dev) \
380 sc->usbatm->atm_dev->type = val; \
381 } while (0)
382
383/* Firmware loading */
384#define LOAD_INTERNAL 0xA0
385#define F8051_USBCS 0x7f92
386
387/**
388 * uea_send_modem_cmd - Send a command for pre-firmware devices.
389 */
390static int uea_send_modem_cmd(struct usb_device *usb,
391 u16 addr, u16 size, u8 * buff)
392{
393 int ret = -ENOMEM;
394 u8 *xfer_buff;
395
396 xfer_buff = kmalloc(size, GFP_KERNEL);
397 if (xfer_buff) {
398 memcpy(xfer_buff, buff, size);
399 ret = usb_control_msg(usb,
400 usb_sndctrlpipe(usb, 0),
401 LOAD_INTERNAL,
402 USB_DIR_OUT | USB_TYPE_VENDOR |
403 USB_RECIP_DEVICE, addr, 0, xfer_buff,
404 size, CTRL_TIMEOUT);
405 kfree(xfer_buff);
406 }
407
408 if (ret < 0)
409 return ret;
410
411 return (ret == size) ? 0 : -EIO;
412}
413
414static void uea_upload_pre_firmware(const struct firmware *fw_entry, void *context)
415{
416 struct usb_device *usb = context;
417 u8 *pfw, value;
418 u32 crc = 0;
419 int ret, size;
420
421 uea_enters(usb);
422 if (!fw_entry) {
423 uea_err(usb, "firmware is not available\n");
424 goto err;
425 }
426
427 pfw = fw_entry->data;
428 size = fw_entry->size;
429
430 crc = FW_GET_LONG(pfw);
431 pfw += 4;
432 size -= 4;
433 if (crc32_be(0, pfw, size) != crc) {
434 uea_err(usb, "firmware is corrupted\n");
435 goto err;
436 }
437
438 /*
439 * Start to upload formware : send reset
440 */
441 value = 1;
442 ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value);
443
444 if (ret < 0) {
445 uea_err(usb, "modem reset failed with error %d\n", ret);
446 goto err;
447 }
448
449 while (size > 0) {
450 u8 len = FW_GET_BYTE(pfw);
451 u16 add = FW_GET_WORD(pfw + 1);
452 ret = uea_send_modem_cmd(usb, add, len, pfw + 3);
453 if (ret < 0) {
454 uea_err(usb, "uploading firmware data failed "
455 "with error %d\n", ret);
456 goto err;
457 }
458 pfw += len + 3;
459 size -= len + 3;
460 }
461
462 /*
463 * Tell the modem we finish : de-assert reset
464 */
465 value = 0;
466 ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value);
467 if (ret < 0)
468 uea_err(usb, "modem de-assert failed with error %d\n", ret);
469 else
470 uea_info(usb, "firmware uploaded\n");
471
472err:
473 uea_leaves(usb);
474}
475
476/**
477 * uea_load_firmware - Load usb firmware for pre-firmware devices.
478 */
479static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
480{
481 int ret;
482 char *fw_name = FW_DIR "eagle.fw";
483
484 uea_enters(usb);
485 uea_info(usb, "pre-firmware device, uploading firmware\n");
486
487 switch (ver) {
488 case ADI930:
489 fw_name = FW_DIR "adi930.fw";
490 break;
491 case EAGLE_I:
492 fw_name = FW_DIR "eagleI.fw";
493 break;
494 case EAGLE_II:
495 fw_name = FW_DIR "eagleII.fw";
496 break;
497 case EAGLE_III:
498 fw_name = FW_DIR "eagleIII.fw";
499 break;
500 }
501
502 ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev, usb, uea_upload_pre_firmware);
503 if (ret)
504 uea_err(usb, "firmware %s is not available\n", fw_name);
505 else
506 uea_info(usb, "loading firmware %s\n", fw_name);
507
508 uea_leaves(usb);
509 return ret;
510}
511
512/* modem management : dsp firmware, send/read CMV, monitoring statistic
513 */
514
515/*
516 * Make sure that the DSP code provided is safe to use.
517 */
518static int check_dsp(u8 *dsp, unsigned int len)
519{
520 u8 pagecount, blockcount;
521 u16 blocksize;
522 u32 pageoffset;
523 unsigned int i, j, p, pp;
524
525 /* enough space for pagecount? */
526 if (len < 1)
527 return 1;
528
529 pagecount = FW_GET_BYTE(dsp);
530 p = 1;
531
532 /* enough space for page offsets? */
533 if (p + 4 * pagecount > len)
534 return 1;
535
536 for (i = 0; i < pagecount; i++) {
537
538 pageoffset = FW_GET_LONG(dsp + p);
539 p += 4;
540
541 if (pageoffset == 0)
542 continue;
543
544 /* enough space for blockcount? */
545 if (pageoffset >= len)
546 return 1;
547
548 pp = pageoffset;
549 blockcount = FW_GET_BYTE(dsp + pp);
550 pp += 1;
551
552 for (j = 0; j < blockcount; j++) {
553
554 /* enough space for block header? */
555 if (pp + 4 > len)
556 return 1;
557
558 pp += 2; /* skip blockaddr */
559 blocksize = FW_GET_WORD(dsp + pp);
560 pp += 2;
561
562 /* enough space for block data? */
563 if (pp + blocksize > len)
564 return 1;
565
566 pp += blocksize;
567 }
568 }
569
570 return 0;
571}
572
573/*
574 * send data to the idma pipe
575 * */
576static int uea_idma_write(struct uea_softc *sc, void *data, u32 size)
577{
578 int ret = -ENOMEM;
579 u8 *xfer_buff;
580 int bytes_read;
581
582 xfer_buff = kmalloc(size, GFP_KERNEL);
583 if (!xfer_buff) {
584 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
585 return ret;
586 }
587
588 memcpy(xfer_buff, data, size);
589
590 ret = usb_bulk_msg(sc->usb_dev,
591 usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
592 xfer_buff, size, &bytes_read, BULK_TIMEOUT);
593
594 kfree(xfer_buff);
595 if (ret < 0)
596 return ret;
597 if (size != bytes_read) {
598 uea_err(INS_TO_USBDEV(sc), "size != bytes_read %d %d\n", size,
599 bytes_read);
600 return -EIO;
601 }
602
603 return 0;
604}
605
606static int request_dsp(struct uea_softc *sc)
607{
608 int ret;
609 char *dsp_name;
610
611 if (UEA_CHIP_VERSION(sc) == ADI930) {
612 if (IS_ISDN(sc))
613 dsp_name = FW_DIR "DSP9i.bin";
614 else
615 dsp_name = FW_DIR "DSP9p.bin";
616 } else {
617 if (IS_ISDN(sc))
618 dsp_name = FW_DIR "DSPei.bin";
619 else
620 dsp_name = FW_DIR "DSPep.bin";
621 }
622
623 ret = request_firmware(&sc->dsp_firm,
624 dsp_name, &sc->usb_dev->dev);
625 if (ret < 0) {
626 uea_err(INS_TO_USBDEV(sc),
627 "requesting firmware %s failed with error %d\n",
628 dsp_name, ret);
629 return ret;
630 }
631
632 if (check_dsp(sc->dsp_firm->data, sc->dsp_firm->size)) {
633 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
634 dsp_name);
635 release_firmware(sc->dsp_firm);
636 sc->dsp_firm = NULL;
637 return -EILSEQ;
638 }
639
640 return 0;
641}
642
643/*
644 * The uea_load_page() function must be called within a process context
645 */
646static void uea_load_page(void *xsc)
647{
648 struct uea_softc *sc = xsc;
649 u16 pageno = sc->pageno;
650 u16 ovl = sc->ovl;
651 struct block_info bi;
652
653 u8 *p;
654 u8 pagecount, blockcount;
655 u16 blockaddr, blocksize;
656 u32 pageoffset;
657 int i;
658
659 /* reload firmware when reboot start and it's loaded already */
660 if (ovl == 0 && pageno == 0 && sc->dsp_firm) {
661 release_firmware(sc->dsp_firm);
662 sc->dsp_firm = NULL;
663 }
664
665 if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
666 return;
667
668 p = sc->dsp_firm->data;
669 pagecount = FW_GET_BYTE(p);
670 p += 1;
671
672 if (pageno >= pagecount)
673 goto bad1;
674
675 p += 4 * pageno;
676 pageoffset = FW_GET_LONG(p);
677
678 if (pageoffset == 0)
679 goto bad1;
680
681 p = sc->dsp_firm->data + pageoffset;
682 blockcount = FW_GET_BYTE(p);
683 p += 1;
684
685 uea_dbg(INS_TO_USBDEV(sc),
686 "sending %u blocks for DSP page %u\n", blockcount, pageno);
687
688 bi.wHdr = cpu_to_le16(UEA_BIHDR);
689 bi.wOvl = cpu_to_le16(ovl);
690 bi.wOvlOffset = cpu_to_le16(ovl | 0x8000);
691
692 for (i = 0; i < blockcount; i++) {
693 blockaddr = FW_GET_WORD(p);
694 p += 2;
695
696 blocksize = FW_GET_WORD(p);
697 p += 2;
698
699 bi.wSize = cpu_to_le16(blocksize);
700 bi.wAddress = cpu_to_le16(blockaddr);
701 bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0);
702
703 /* send block info through the IDMA pipe */
704 if (uea_idma_write(sc, &bi, BLOCK_INFO_SIZE))
705 goto bad2;
706
707 /* send block data through the IDMA pipe */
708 if (uea_idma_write(sc, p, blocksize))
709 goto bad2;
710
711 p += blocksize;
712 }
713
714 return;
715
716bad2:
717 uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i);
718 return;
719bad1:
720 uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n",pageno);
721}
722
723static inline void wake_up_cmv_ack(struct uea_softc *sc)
724{
725 sc->cmv_ack = 1;
726 wake_up(&sc->cmv_ack_wait);
727}
728
729static inline int wait_cmv_ack(struct uea_softc *sc)
730{
731 int ret = wait_event_timeout(sc->cmv_ack_wait,
732 sc->cmv_ack, ACK_TIMEOUT);
733 sc->cmv_ack = 0;
734
735 if (ret < 0)
736 return ret;
737
738 return (ret == 0) ? -ETIMEDOUT : 0;
739
740}
741
742#define UCDC_SEND_ENCAPSULATED_COMMAND 0x00
743
744static int uea_request(struct uea_softc *sc,
745 u16 value, u16 index, u16 size, void *data)
746{
747 u8 *xfer_buff;
748 int ret = -ENOMEM;
749
750 xfer_buff = kmalloc(size, GFP_KERNEL);
751 if (!xfer_buff) {
752 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
753 return ret;
754 }
755 memcpy(xfer_buff, data, size);
756
757 ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
758 UCDC_SEND_ENCAPSULATED_COMMAND,
759 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
760 value, index, xfer_buff, size, CTRL_TIMEOUT);
761
762 kfree(xfer_buff);
763 if (ret < 0) {
764 uea_err(INS_TO_USBDEV(sc), "usb_control_msg error %d\n", ret);
765 return ret;
766 }
767
768 if (ret != size) {
769 uea_err(INS_TO_USBDEV(sc),
770 "usb_control_msg send only %d bytes (instead of %d)\n",
771 ret, size);
772 return -EIO;
773 }
774
775 return 0;
776}
777
778static int uea_cmv(struct uea_softc *sc,
779 u8 function, u32 address, u16 offset, u32 data)
780{
781 struct cmv cmv;
782 int ret;
783
784 /* we send a request, but we expect a reply */
785 sc->cmv_function = function | 0x2;
786 sc->cmv_idx++;
787 sc->cmv_address = address;
788 sc->cmv_offset = offset;
789
790 cmv.wPreamble = cpu_to_le16(PREAMBLE);
791 cmv.bDirection = HOSTTOMODEM;
792 cmv.bFunction = function;
793 cmv.wIndex = cpu_to_le16(sc->cmv_idx);
794 put_unaligned(cpu_to_le32(address), &cmv.dwSymbolicAddress);
795 cmv.wOffsetAddress = cpu_to_le16(offset);
796 put_unaligned(cpu_to_le32(data >> 16 | data << 16), &cmv.dwData);
797
798 ret = uea_request(sc, UEA_SET_BLOCK, UEA_MPTX_START, CMV_SIZE, &cmv);
799 if (ret < 0)
800 return ret;
801 return wait_cmv_ack(sc);
802}
803
804static inline int uea_read_cmv(struct uea_softc *sc,
805 u32 address, u16 offset, u32 *data)
806{
807 int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTREAD),
808 address, offset, 0);
809 if (ret < 0)
810 uea_err(INS_TO_USBDEV(sc),
811 "reading cmv failed with error %d\n", ret);
812 else
813 *data = sc->data;
814
815 return ret;
816}
817
818static inline int uea_write_cmv(struct uea_softc *sc,
819 u32 address, u16 offset, u32 data)
820{
821 int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTWRITE),
822 address, offset, data);
823 if (ret < 0)
824 uea_err(INS_TO_USBDEV(sc),
825 "writing cmv failed with error %d\n", ret);
826
827 return ret;
828}
829
830/*
831 * Monitor the modem and update the stat
832 * return 0 if everything is ok
833 * return < 0 if an error occurs (-EAGAIN reboot needed)
834 */
835static int uea_stat(struct uea_softc *sc)
836{
837 u32 data;
838 int ret;
839
840 uea_enters(INS_TO_USBDEV(sc));
841 data = sc->stats.phy.state;
842
843 ret = uea_read_cmv(sc, SA_STAT, 0, &sc->stats.phy.state);
844 if (ret < 0)
845 return ret;
846
847 switch (GET_STATUS(sc->stats.phy.state)) {
848 case 0: /* not yet synchronized */
849 uea_dbg(INS_TO_USBDEV(sc),
850 "modem not yet synchronized\n");
851 return 0;
852
853 case 1: /* initialization */
854 uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
855 return 0;
856
857 case 2: /* operational */
858 uea_vdbg(INS_TO_USBDEV(sc), "modem operational\n");
859 break;
860
861 case 3: /* fail ... */
862 uea_info(INS_TO_USBDEV(sc), "modem synchronization failed\n");
863 return -EAGAIN;
864
865 case 4 ... 6: /* test state */
866 uea_warn(INS_TO_USBDEV(sc),
867 "modem in test mode - not supported\n");
868 return -EAGAIN;
869
870 case 7: /* fast-retain ... */
871 uea_info(INS_TO_USBDEV(sc), "modem in fast-retain mode\n");
872 return 0;
873 default:
874 uea_err(INS_TO_USBDEV(sc), "modem invalid SW mode %d\n",
875 GET_STATUS(sc->stats.phy.state));
876 return -EAGAIN;
877 }
878
879 if (GET_STATUS(data) != 2) {
880 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
881 uea_info(INS_TO_USBDEV(sc), "modem operational\n");
882
883 /* release the dsp firmware as it is not needed until
884 * the next failure
885 */
886 if (sc->dsp_firm) {
887 release_firmware(sc->dsp_firm);
888 sc->dsp_firm = NULL;
889 }
890
891 ret = uea_read_cmv(sc, SA_INFO, 10, &sc->stats.phy.firmid);
892 if (ret < 0)
893 return ret;
894 uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
895 sc->stats.phy.firmid);
896 }
897
898 /* always update it as atm layer could not be init when we switch to
899 * operational state
900 */
901 UPDATE_ATM_STAT(signal, ATM_PHY_SIG_FOUND);
902
903 /* wake up processes waiting for synchronization */
904 wake_up(&sc->sync_q);
905
906 ret = uea_read_cmv(sc, SA_DIAG, 2, &sc->stats.phy.flags);
907 if (ret < 0)
908 return ret;
909 sc->stats.phy.mflags |= sc->stats.phy.flags;
910
911 /* in case of a flags ( for example delineation LOSS (& 0x10)),
912 * we check the status again in order to detect the failure earlier
913 */
914 if (sc->stats.phy.flags) {
915 uea_dbg(INS_TO_USBDEV(sc), "Stat flag = %d\n",
916 sc->stats.phy.flags);
917 return 0;
918 }
919
920 ret = uea_read_cmv(sc, SA_RATE, 0, &data);
921 if (ret < 0)
922 return ret;
923
924 /* in bulk mode the modem have problem with high rate
925 * changing internal timing could improve things, but the
926 * value is misterious.
927 * ADI930 don't support it (-EPIPE error).
928 */
929 if (UEA_CHIP_VERSION(sc) != ADI930
930 && sc->stats.phy.dsrate != (data >> 16) * 32) {
931 /* Original timming from ADI(used in windows driver)
932 * 0x20ffff>>16 * 32 = 32 * 32 = 1Mbits
933 */
934 u16 timeout = (data <= 0x20ffff) ? 0 : 1;
935 ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
936 uea_info(INS_TO_USBDEV(sc),
937 "setting new timeout %d%s\n", timeout,
938 ret < 0?" failed":"");
939 }
940 sc->stats.phy.dsrate = (data >> 16) * 32;
941 sc->stats.phy.usrate = (data & 0xffff) * 32;
942 UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
943
944 ret = uea_read_cmv(sc, SA_DIAG, 23, &data);
945 if (ret < 0)
946 return ret;
947 sc->stats.phy.dsattenuation = (data & 0xff) / 2;
948
949 ret = uea_read_cmv(sc, SA_DIAG, 47, &data);
950 if (ret < 0)
951 return ret;
952 sc->stats.phy.usattenuation = (data & 0xff) / 2;
953
954 ret = uea_read_cmv(sc, SA_DIAG, 25, &sc->stats.phy.dsmargin);
955 if (ret < 0)
956 return ret;
957
958 ret = uea_read_cmv(sc, SA_DIAG, 49, &sc->stats.phy.usmargin);
959 if (ret < 0)
960 return ret;
961
962 ret = uea_read_cmv(sc, SA_DIAG, 51, &sc->stats.phy.rxflow);
963 if (ret < 0)
964 return ret;
965
966 ret = uea_read_cmv(sc, SA_DIAG, 52, &sc->stats.phy.txflow);
967 if (ret < 0)
968 return ret;
969
970 ret = uea_read_cmv(sc, SA_DIAG, 54, &sc->stats.phy.dsunc);
971 if (ret < 0)
972 return ret;
973
974 /* only for atu-c */
975 ret = uea_read_cmv(sc, SA_DIAG, 58, &sc->stats.phy.usunc);
976 if (ret < 0)
977 return ret;
978
979 ret = uea_read_cmv(sc, SA_DIAG, 53, &sc->stats.phy.dscorr);
980 if (ret < 0)
981 return ret;
982
983 /* only for atu-c */
984 ret = uea_read_cmv(sc, SA_DIAG, 57, &sc->stats.phy.uscorr);
985 if (ret < 0)
986 return ret;
987
988 ret = uea_read_cmv(sc, SA_INFO, 8, &sc->stats.phy.vidco);
989 if (ret < 0)
990 return ret;
991
992 ret = uea_read_cmv(sc, SA_INFO, 13, &sc->stats.phy.vidcpe);
993 if (ret < 0)
994 return ret;
995
996 return 0;
997}
998
999static int request_cmvs(struct uea_softc *sc,
1000 struct uea_cmvs **cmvs, const struct firmware **fw)
1001{
1002 int ret, size;
1003 u8 *data;
1004 char *file;
1005 static char cmv_name[256] = FW_DIR;
1006
1007 if (cmv_file[sc->modem_index] == NULL) {
1008 if (UEA_CHIP_VERSION(sc) == ADI930)
1009 file = (IS_ISDN(sc)) ? "CMV9i.bin" : "CMV9p.bin";
1010 else
1011 file = (IS_ISDN(sc)) ? "CMVei.bin" : "CMVep.bin";
1012 } else
1013 file = cmv_file[sc->modem_index];
1014
1015 strcpy(cmv_name, FW_DIR);
1016 strlcat(cmv_name, file, sizeof(cmv_name));
1017
1018 ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
1019 if (ret < 0) {
1020 uea_err(INS_TO_USBDEV(sc),
1021 "requesting firmware %s failed with error %d\n",
1022 cmv_name, ret);
1023 return ret;
1024 }
1025
1026 data = (u8 *) (*fw)->data;
1027 size = *data * sizeof(struct uea_cmvs) + 1;
1028 if (size != (*fw)->size) {
1029 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1030 cmv_name);
1031 release_firmware(*fw);
1032 return -EILSEQ;
1033 }
1034
1035 *cmvs = (struct uea_cmvs *)(data + 1);
1036 return *data;
1037}
1038
1039/* Start boot post firmware modem:
1040 * - send reset commands through usb control pipe
1041 * - start workqueue for DSP loading
1042 * - send CMV options to modem
1043 */
1044
1045static int uea_start_reset(struct uea_softc *sc)
1046{
1047 u16 zero = 0; /* ;-) */
1048 int i, len, ret;
1049 struct uea_cmvs *cmvs;
1050 const struct firmware *cmvs_fw;
1051
1052 uea_enters(INS_TO_USBDEV(sc));
1053 uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");
1054
1055 sc->booting = 1;
1056 UPDATE_ATM_STAT(signal, ATM_PHY_SIG_LOST);
1057
1058 /* reset statistics */
1059 memset(&sc->stats, 0, sizeof(struct uea_stats));
1060
1061 /* tell the modem that we want to boot in IDMA mode */
1062 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1063 uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL);
1064
1065 /* enter reset mode */
1066 uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL);
1067
1068 /* original driver use 200ms, but windows driver use 100ms */
1069 msleep(100);
1070
1071 /* leave reset mode */
1072 uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);
1073
1074 /* clear tx and rx mailboxes */
1075 uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
1076 uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
1077 uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
1078
1079 msleep(1000);
1080 sc->cmv_function = MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY);
1081 sc->booting = 0;
1082
1083 /* start loading DSP */
1084 sc->pageno = 0;
1085 sc->ovl = 0;
1086 schedule_work(&sc->task);
1087
1088 /* wait for modem ready CMV */
1089 ret = wait_cmv_ack(sc);
1090 if (ret < 0)
1091 return ret;
1092
1093 /* Enter in R-IDLE (cmv) until instructed otherwise */
1094 ret = uea_write_cmv(sc, SA_CNTL, 0, 1);
1095 if (ret < 0)
1096 return ret;
1097
1098 /* get options */
1099 ret = len = request_cmvs(sc, &cmvs, &cmvs_fw);
1100 if (ret < 0)
1101 return ret;
1102
1103 /* send options */
1104 for (i = 0; i < len; i++) {
1105 ret = uea_write_cmv(sc, FW_GET_LONG(&cmvs[i].address),
1106 FW_GET_WORD(&cmvs[i].offset),
1107 FW_GET_LONG(&cmvs[i].data));
1108 if (ret < 0)
1109 goto out;
1110 }
1111 /* Enter in R-ACT-REQ */
1112 ret = uea_write_cmv(sc, SA_CNTL, 0, 2);
1113out:
1114 release_firmware(cmvs_fw);
1115 sc->reset = 0;
1116 uea_leaves(INS_TO_USBDEV(sc));
1117 return ret;
1118}
1119
1120/*
1121 * In case of an error wait 1s before rebooting the modem
1122 * if the modem don't request reboot (-EAGAIN).
1123 * Monitor the modem every 1s.
1124 */
1125
1126static int uea_kthread(void *data)
1127{
1128 struct uea_softc *sc = data;
1129 int ret = -EAGAIN;
1130
1131 uea_enters(INS_TO_USBDEV(sc));
1132 while (!kthread_should_stop()) {
1133 if (ret < 0 || sc->reset)
1134 ret = uea_start_reset(sc);
1135 if (!ret)
1136 ret = uea_stat(sc);
1137 if (ret != -EAGAIN)
1138 msleep(1000);
1139 }
1140 uea_leaves(INS_TO_USBDEV(sc));
1141 return ret;
1142}
1143
1144/* Load second usb firmware for ADI930 chip */
1145static int load_XILINX_firmware(struct uea_softc *sc)
1146{
1147 const struct firmware *fw_entry;
1148 int ret, size, u, ln;
1149 u8 *pfw, value;
1150 char *fw_name = FW_DIR "930-fpga.bin";
1151
1152 uea_enters(INS_TO_USBDEV(sc));
1153
1154 ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev);
1155 if (ret) {
1156 uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n",
1157 fw_name);
1158 goto err0;
1159 }
1160
1161 pfw = fw_entry->data;
1162 size = fw_entry->size;
1163 if (size != 0x577B) {
1164 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1165 fw_name);
1166 ret = -EILSEQ;
1167 goto err1;
1168 }
1169 for (u = 0; u < size; u += ln) {
1170 ln = min(size - u, 64);
1171 ret = uea_request(sc, 0xe, 0, ln, pfw + u);
1172 if (ret < 0) {
1173 uea_err(INS_TO_USBDEV(sc),
1174 "elsa download data failed (%d)\n", ret);
1175 goto err1;
1176 }
1177 }
1178
1179 /* finish to send the fpga
1180 */
1181 ret = uea_request(sc, 0xe, 1, 0, NULL);
1182 if (ret < 0) {
1183 uea_err(INS_TO_USBDEV(sc),
1184 "elsa download data failed (%d)\n", ret);
1185 goto err1;
1186 }
1187
1188 /*
1189 * Tell the modem we finish : de-assert reset
1190 */
1191 value = 0;
1192 ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
1193 if (ret < 0)
1194 uea_err(sc->usb_dev, "elsa de-assert failed with error %d\n", ret);
1195
1196
1197err1:
1198 release_firmware(fw_entry);
1199err0:
1200 uea_leaves(INS_TO_USBDEV(sc));
1201 return ret;
1202}
1203
1204static void uea_dispatch_cmv(struct uea_softc *sc, struct cmv* cmv)
1205{
1206 uea_enters(INS_TO_USBDEV(sc));
1207 if (le16_to_cpu(cmv->wPreamble) != PREAMBLE)
1208 goto bad1;
1209
1210 if (cmv->bDirection != MODEMTOHOST)
1211 goto bad1;
1212
1213 /* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
1214 * the first MEMACESS cmv. Ignore it...
1215 */
1216 if (cmv->bFunction != sc->cmv_function) {
1217 if (UEA_CHIP_VERSION(sc) == ADI930
1218 && cmv->bFunction == MAKEFUNCTION(2, 2)) {
1219 cmv->wIndex = cpu_to_le16(sc->cmv_idx);
1220 put_unaligned(cpu_to_le32(sc->cmv_address), &cmv->dwSymbolicAddress);
1221 cmv->wOffsetAddress = cpu_to_le16(sc->cmv_offset);
1222 }
1223 else
1224 goto bad2;
1225 }
1226
1227 if (cmv->bFunction == MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY)) {
1228 wake_up_cmv_ack(sc);
1229 return;
1230 }
1231
1232 /* in case of MEMACCESS */
1233 if (le16_to_cpu(cmv->wIndex) != sc->cmv_idx ||
1234 le32_to_cpu(get_unaligned(&cmv->dwSymbolicAddress)) !=
1235 sc->cmv_address
1236 || le16_to_cpu(cmv->wOffsetAddress) != sc->cmv_offset)
1237 goto bad2;
1238
1239 sc->data = le32_to_cpu(get_unaligned(&cmv->dwData));
1240 sc->data = sc->data << 16 | sc->data >> 16;
1241
1242 wake_up_cmv_ack(sc);
1243 return;
1244
1245bad2:
1246 uea_err(INS_TO_USBDEV(sc), "unexpected cmv received,"
1247 "Function : %d, Subfunction : %d\n",
1248 FUNCTION_TYPE(cmv->bFunction),
1249 FUNCTION_SUBTYPE(cmv->bFunction));
1250 return;
1251
1252bad1:
1253 uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
1254 "wPreamble %d, bDirection %d\n",
1255 le16_to_cpu(cmv->wPreamble), cmv->bDirection);
1256}
1257
1258/*
1259 * interrupt handler
1260 */
1261static void uea_intr(struct urb *urb, struct pt_regs *regs)
1262{
1263 struct uea_softc *sc = (struct uea_softc *)urb->context;
1264 struct intr_pkt *intr;
1265 uea_enters(INS_TO_USBDEV(sc));
1266
1267 if (urb->status < 0) {
1268 uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n",
1269 urb->status);
1270 return;
1271 }
1272
1273 intr = (struct intr_pkt *) urb->transfer_buffer;
1274
1275 /* device-to-host interrupt */
1276 if (intr->bType != 0x08 || sc->booting) {
1277 uea_err(INS_TO_USBDEV(sc), "wrong intr\n");
1278 // rebooting ?
1279 // sc->reset = 1;
1280 goto resubmit;
1281 }
1282
1283 switch (le16_to_cpu(intr->wInterrupt)) {
1284 case INT_LOADSWAPPAGE:
1285 sc->pageno = intr->bSwapPageNo;
1286 sc->ovl = intr->bOvl >> 4 | intr->bOvl << 4;
1287 schedule_work(&sc->task);
1288 break;
1289
1290 case INT_INCOMINGCMV:
1291 uea_dispatch_cmv(sc, &intr->u.s2.cmv);
1292 break;
1293
1294 default:
1295 uea_err(INS_TO_USBDEV(sc), "unknown intr %u\n",
1296 le16_to_cpu(intr->wInterrupt));
1297 }
1298
1299resubmit:
1300 usb_submit_urb(sc->urb_int, GFP_ATOMIC);
1301}
1302
1303/*
1304 * Start the modem : init the data and start kernel thread
1305 */
1306static int uea_boot(struct uea_softc *sc)
1307{
1308 int ret;
1309 struct intr_pkt *intr;
1310
1311 uea_enters(INS_TO_USBDEV(sc));
1312
1313 INIT_WORK(&sc->task, uea_load_page, sc);
1314 init_waitqueue_head(&sc->sync_q);
1315 init_waitqueue_head(&sc->cmv_ack_wait);
1316
1317 if (UEA_CHIP_VERSION(sc) == ADI930)
1318 load_XILINX_firmware(sc);
1319
1320 intr = kmalloc(INTR_PKT_SIZE, GFP_KERNEL);
1321 if (!intr) {
1322 uea_err(INS_TO_USBDEV(sc),
1323 "cannot allocate interrupt package\n");
1324 uea_leaves(INS_TO_USBDEV(sc));
1325 return -ENOMEM;
1326 }
1327
1328 sc->urb_int = usb_alloc_urb(0, GFP_KERNEL);
1329 if (!sc->urb_int) {
1330 uea_err(INS_TO_USBDEV(sc), "cannot allocate interrupt URB\n");
1331 goto err;
1332 }
1333
1334 usb_fill_int_urb(sc->urb_int, sc->usb_dev,
1335 usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
1336 intr, INTR_PKT_SIZE, uea_intr, sc,
1337 sc->usb_dev->actconfig->interface[0]->altsetting[0].
1338 endpoint[0].desc.bInterval);
1339
1340 ret = usb_submit_urb(sc->urb_int, GFP_KERNEL);
1341 if (ret < 0) {
1342 uea_err(INS_TO_USBDEV(sc),
1343 "urb submition failed with error %d\n", ret);
1344 goto err1;
1345 }
1346
1347 sc->kthread = kthread_run(uea_kthread, sc, "ueagle-atm");
1348 if (sc->kthread == ERR_PTR(-ENOMEM)) {
1349 uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
1350 goto err2;
1351 }
1352
1353 uea_leaves(INS_TO_USBDEV(sc));
1354 return 0;
1355
1356err2:
1357 usb_kill_urb(sc->urb_int);
1358err1:
1359 kfree(intr);
1360err:
1361 usb_free_urb(sc->urb_int);
1362 uea_leaves(INS_TO_USBDEV(sc));
1363 return -ENOMEM;
1364}
1365
1366/*
1367 * Stop the modem : kill kernel thread and free data
1368 */
1369static void uea_stop(struct uea_softc *sc)
1370{
1371 int ret;
1372 uea_enters(INS_TO_USBDEV(sc));
1373 ret = kthread_stop(sc->kthread);
1374 uea_info(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret);
1375
1376 /* stop any pending boot process */
1377 flush_scheduled_work();
1378
1379 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1380
1381 usb_kill_urb(sc->urb_int);
1382 kfree(sc->urb_int->transfer_buffer);
1383 usb_free_urb(sc->urb_int);
1384
1385 if (sc->dsp_firm)
1386 release_firmware(sc->dsp_firm);
1387 uea_leaves(INS_TO_USBDEV(sc));
1388}
1389
1390/* syfs interface */
1391static struct uea_softc *dev_to_uea(struct device *dev)
1392{
1393 struct usb_interface *intf;
1394 struct usbatm_data *usbatm;
1395
1396 intf = to_usb_interface(dev);
1397 if (!intf)
1398 return NULL;
1399
1400 usbatm = usb_get_intfdata(intf);
1401 if (!usbatm)
1402 return NULL;
1403
1404 return usbatm->driver_data;
1405}
1406
1407static ssize_t read_status(struct device *dev, struct device_attribute *attr,
1408 char *buf)
1409{
1410 int ret = -ENODEV;
1411 struct uea_softc *sc;
1412
1413 down(&uea_semaphore);
1414 sc = dev_to_uea(dev);
1415 if (!sc)
1416 goto out;
1417 ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.state);
1418out:
1419 up(&uea_semaphore);
1420 return ret;
1421}
1422
1423static ssize_t reboot(struct device *dev, struct device_attribute *attr,
1424 const char *buf, size_t count)
1425{
1426 int ret = -ENODEV;
1427 struct uea_softc *sc;
1428
1429 down(&uea_semaphore);
1430 sc = dev_to_uea(dev);
1431 if (!sc)
1432 goto out;
1433 sc->reset = 1;
1434 ret = count;
1435out:
1436 up(&uea_semaphore);
1437 return ret;
1438}
1439
1440static DEVICE_ATTR(stat_status, S_IWUGO | S_IRUGO, read_status, reboot);
1441
1442static ssize_t read_human_status(struct device *dev, struct device_attribute *attr,
1443 char *buf)
1444{
1445 int ret = -ENODEV;
1446 struct uea_softc *sc;
1447
1448 down(&uea_semaphore);
1449 sc = dev_to_uea(dev);
1450 if (!sc)
1451 goto out;
1452
1453 switch (GET_STATUS(sc->stats.phy.state)) {
1454 case 0:
1455 ret = sprintf(buf, "Modem is booting\n");
1456 break;
1457 case 1:
1458 ret = sprintf(buf, "Modem is initializing\n");
1459 break;
1460 case 2:
1461 ret = sprintf(buf, "Modem is operational\n");
1462 break;
1463 default:
1464 ret = sprintf(buf, "Modem synchronization failed\n");
1465 break;
1466 }
1467out:
1468 up(&uea_semaphore);
1469 return ret;
1470}
1471
1472static DEVICE_ATTR(stat_human_status, S_IWUGO | S_IRUGO, read_human_status, NULL);
1473
1474static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
1475 char *buf)
1476{
1477 int ret = -ENODEV;
1478 struct uea_softc *sc;
1479
1480 down(&uea_semaphore);
1481 sc = dev_to_uea(dev);
1482 if (!sc)
1483 goto out;
1484
1485 if (sc->stats.phy.flags & 0x0C00)
1486 ret = sprintf(buf, "ERROR\n");
1487 else if (sc->stats.phy.flags & 0x0030)
1488 ret = sprintf(buf, "LOSS\n");
1489 else
1490 ret = sprintf(buf, "GOOD\n");
1491out:
1492 up(&uea_semaphore);
1493 return ret;
1494}
1495
1496static DEVICE_ATTR(stat_delin, S_IWUGO | S_IRUGO, read_delin, NULL);
1497
1498#define UEA_ATTR(name, reset) \
1499 \
1500static ssize_t read_##name(struct device *dev, \
1501 struct device_attribute *attr, char *buf) \
1502{ \
1503 int ret = -ENODEV; \
1504 struct uea_softc *sc; \
1505 \
1506 down(&uea_semaphore); \
1507 sc = dev_to_uea(dev); \
1508 if (!sc) \
1509 goto out; \
1510 ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name); \
1511 if (reset) \
1512 sc->stats.phy.name = 0; \
1513out: \
1514 up(&uea_semaphore); \
1515 return ret; \
1516} \
1517 \
1518static DEVICE_ATTR(stat_##name, S_IRUGO, read_##name, NULL)
1519
1520UEA_ATTR(mflags, 1);
1521UEA_ATTR(vidcpe, 0);
1522UEA_ATTR(usrate, 0);
1523UEA_ATTR(dsrate, 0);
1524UEA_ATTR(usattenuation, 0);
1525UEA_ATTR(dsattenuation, 0);
1526UEA_ATTR(usmargin, 0);
1527UEA_ATTR(dsmargin, 0);
1528UEA_ATTR(txflow, 0);
1529UEA_ATTR(rxflow, 0);
1530UEA_ATTR(uscorr, 0);
1531UEA_ATTR(dscorr, 0);
1532UEA_ATTR(usunc, 0);
1533UEA_ATTR(dsunc, 0);
1534
1535/* Retrieve the device End System Identifier (MAC) */
1536
1537#define htoi(x) (isdigit(x) ? x-'0' : toupper(x)-'A'+10)
1538static int uea_getesi(struct uea_softc *sc, u_char * esi)
1539{
1540 unsigned char mac_str[2 * ETH_ALEN + 1];
1541 int i;
1542 if (usb_string
1543 (sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str,
1544 sizeof(mac_str)) != 2 * ETH_ALEN)
1545 return 1;
1546
1547 for (i = 0; i < ETH_ALEN; i++)
1548 esi[i] = htoi(mac_str[2 * i]) * 16 + htoi(mac_str[2 * i + 1]);
1549
1550 return 0;
1551}
1552
1553/* ATM stuff */
1554static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
1555{
1556 struct uea_softc *sc = usbatm->driver_data;
1557
1558 return uea_getesi(sc, atm_dev->esi);
1559}
1560
1561static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
1562{
1563 struct uea_softc *sc = usbatm->driver_data;
1564
1565 wait_event(sc->sync_q, IS_OPERATIONAL(sc));
1566
1567 return 0;
1568
1569}
1570
1571static int claim_interface(struct usb_device *usb_dev,
1572 struct usbatm_data *usbatm, int ifnum)
1573{
1574 int ret;
1575 struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum);
1576
1577 if (!intf) {
1578 uea_err(usb_dev, "interface %d not found\n", ifnum);
1579 return -ENODEV;
1580 }
1581
1582 ret = usb_driver_claim_interface(&uea_driver, intf, usbatm);
1583 if (ret != 0)
1584 uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum,
1585 ret);
1586 return ret;
1587}
1588
1589static void create_fs_entries(struct uea_softc *sc, struct usb_interface *intf)
1590{
1591 /* sysfs interface */
1592 device_create_file(&intf->dev, &dev_attr_stat_status);
1593 device_create_file(&intf->dev, &dev_attr_stat_mflags);
1594 device_create_file(&intf->dev, &dev_attr_stat_human_status);
1595 device_create_file(&intf->dev, &dev_attr_stat_delin);
1596 device_create_file(&intf->dev, &dev_attr_stat_vidcpe);
1597 device_create_file(&intf->dev, &dev_attr_stat_usrate);
1598 device_create_file(&intf->dev, &dev_attr_stat_dsrate);
1599 device_create_file(&intf->dev, &dev_attr_stat_usattenuation);
1600 device_create_file(&intf->dev, &dev_attr_stat_dsattenuation);
1601 device_create_file(&intf->dev, &dev_attr_stat_usmargin);
1602 device_create_file(&intf->dev, &dev_attr_stat_dsmargin);
1603 device_create_file(&intf->dev, &dev_attr_stat_txflow);
1604 device_create_file(&intf->dev, &dev_attr_stat_rxflow);
1605 device_create_file(&intf->dev, &dev_attr_stat_uscorr);
1606 device_create_file(&intf->dev, &dev_attr_stat_dscorr);
1607 device_create_file(&intf->dev, &dev_attr_stat_usunc);
1608 device_create_file(&intf->dev, &dev_attr_stat_dsunc);
1609}
1610
1611static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
1612 const struct usb_device_id *id, int *heavy)
1613{
1614 struct usb_device *usb = interface_to_usbdev(intf);
1615 struct uea_softc *sc;
1616 int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
1617
1618 uea_enters(usb);
1619
1620 /* interface 0 is for firmware/monitoring */
1621 if (ifnum != UEA_INTR_IFACE_NO)
1622 return -ENODEV;
1623
1624 *heavy = sync_wait[modem_index];
1625
1626 /* interface 1 is for outbound traffic */
1627 ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO);
1628 if (ret < 0)
1629 return ret;
1630
1631 /* ADI930 has only 2 interfaces and inbound traffic
1632 * is on interface 1
1633 */
1634 if (UEA_CHIP_VERSION(id) != ADI930) {
1635 /* interface 2 is for inbound traffic */
1636 ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO);
1637 if (ret < 0)
1638 return ret;
1639 }
1640
1641 sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
1642 if (!sc) {
1643 uea_err(INS_TO_USBDEV(sc), "uea_init: not enough memory !\n");
1644 return -ENOMEM;
1645 }
1646
1647 sc->usb_dev = usb;
1648 usbatm->driver_data = sc;
1649 sc->usbatm = usbatm;
1650 sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0;
1651 sc->driver_info = id->driver_info;
1652
1653 ret = uea_boot(sc);
1654 if (ret < 0) {
1655 kfree(sc);
1656 return ret;
1657 }
1658
1659 create_fs_entries(sc, intf);
1660 return 0;
1661}
1662
1663static void destroy_fs_entries(struct uea_softc *sc, struct usb_interface *intf)
1664{
1665 /* sysfs interface */
1666 device_remove_file(&intf->dev, &dev_attr_stat_status);
1667 device_remove_file(&intf->dev, &dev_attr_stat_mflags);
1668 device_remove_file(&intf->dev, &dev_attr_stat_human_status);
1669 device_remove_file(&intf->dev, &dev_attr_stat_delin);
1670 device_remove_file(&intf->dev, &dev_attr_stat_vidcpe);
1671 device_remove_file(&intf->dev, &dev_attr_stat_usrate);
1672 device_remove_file(&intf->dev, &dev_attr_stat_dsrate);
1673 device_remove_file(&intf->dev, &dev_attr_stat_usattenuation);
1674 device_remove_file(&intf->dev, &dev_attr_stat_dsattenuation);
1675 device_remove_file(&intf->dev, &dev_attr_stat_usmargin);
1676 device_remove_file(&intf->dev, &dev_attr_stat_dsmargin);
1677 device_remove_file(&intf->dev, &dev_attr_stat_txflow);
1678 device_remove_file(&intf->dev, &dev_attr_stat_rxflow);
1679 device_remove_file(&intf->dev, &dev_attr_stat_uscorr);
1680 device_remove_file(&intf->dev, &dev_attr_stat_dscorr);
1681 device_remove_file(&intf->dev, &dev_attr_stat_usunc);
1682 device_remove_file(&intf->dev, &dev_attr_stat_dsunc);
1683}
1684
1685static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
1686{
1687 struct uea_softc *sc = usbatm->driver_data;
1688
1689 destroy_fs_entries(sc, intf);
1690 uea_stop(sc);
1691 kfree(sc);
1692}
1693
1694static struct usbatm_driver uea_usbatm_driver = {
1695 .driver_name = "ueagle-atm",
1696 .owner = THIS_MODULE,
1697 .bind = uea_bind,
1698 .atm_start = uea_atm_open,
1699 .unbind = uea_unbind,
1700 .heavy_init = uea_heavy,
1701 .in = UEA_BULK_DATA_PIPE,
1702 .out = UEA_BULK_DATA_PIPE,
1703};
1704
1705static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
1706{
1707 struct usb_device *usb = interface_to_usbdev(intf);
1708
1709 uea_enters(usb);
1710 uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) : %s\n",
1711 le16_to_cpu(usb->descriptor.idVendor),
1712 le16_to_cpu(usb->descriptor.idProduct),
1713 chip_name[UEA_CHIP_VERSION(id)]);
1714
1715 usb_reset_device(usb);
1716
1717 if (UEA_IS_PREFIRM(id))
1718 return uea_load_firmware(usb, UEA_CHIP_VERSION(id));
1719
1720 return usbatm_usb_probe(intf, id, &uea_usbatm_driver);
1721}
1722
1723static void uea_disconnect(struct usb_interface *intf)
1724{
1725 struct usb_device *usb = interface_to_usbdev(intf);
1726 int ifnum = intf->altsetting->desc.bInterfaceNumber;
1727 uea_enters(usb);
1728
1729 /* ADI930 has 2 interfaces and eagle 3 interfaces.
1730 * Pre-firmware device has one interface
1731 */
1732 if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) {
1733 down(&uea_semaphore);
1734 usbatm_usb_disconnect(intf);
1735 up(&uea_semaphore);
1736 uea_info(usb, "ADSL device removed\n");
1737 }
1738
1739 uea_leaves(usb);
1740}
1741
1742/*
1743 * List of supported VID/PID
1744 */
1745static const struct usb_device_id uea_ids[] = {
1746 {USB_DEVICE(ELSA_VID, ELSA_PID_PREFIRM), .driver_info = ADI930 | PREFIRM},
1747 {USB_DEVICE(ELSA_VID, ELSA_PID_PSTFIRM), .driver_info = ADI930 | PSTFIRM},
1748 {USB_DEVICE(EAGLE_VID, EAGLE_I_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1749 {USB_DEVICE(EAGLE_VID, EAGLE_I_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1750 {USB_DEVICE(EAGLE_VID, EAGLE_II_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
1751 {USB_DEVICE(EAGLE_VID, EAGLE_II_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
1752 {USB_DEVICE(EAGLE_VID, EAGLE_IIC_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
1753 {USB_DEVICE(EAGLE_VID, EAGLE_IIC_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
1754 {USB_DEVICE(EAGLE_VID, EAGLE_III_PID_PREFIRM), .driver_info = EAGLE_III | PREFIRM},
1755 {USB_DEVICE(EAGLE_VID, EAGLE_III_PID_PSTFIRM), .driver_info = EAGLE_III | PSTFIRM},
1756 {USB_DEVICE(USR_VID, MILLER_A_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1757 {USB_DEVICE(USR_VID, MILLER_A_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1758 {USB_DEVICE(USR_VID, MILLER_B_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1759 {USB_DEVICE(USR_VID, MILLER_B_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1760 {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM},
1761 {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM},
1762 {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM},
1763 {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM},
1764 {}
1765};
1766
1767/*
1768 * USB driver descriptor
1769 */
1770static struct usb_driver uea_driver = {
1771 .owner = THIS_MODULE,
1772 .name = "ueagle-atm",
1773 .id_table = uea_ids,
1774 .probe = uea_probe,
1775 .disconnect = uea_disconnect,
1776};
1777
1778MODULE_DEVICE_TABLE(usb, uea_ids);
1779
1780/**
1781 * uea_init - Initialize the module.
1782 * Register to USB subsystem
1783 */
1784static int __init uea_init(void)
1785{
1786 printk(KERN_INFO "[ueagle-atm] driver " EAGLEUSBVERSION " loaded\n");
1787
1788 usb_register(&uea_driver);
1789
1790 return 0;
1791}
1792
1793module_init(uea_init);
1794
1795/**
1796 * uea_exit - Destroy module
1797 * Deregister with USB subsystem
1798 */
1799static void __exit uea_exit(void)
1800{
1801 /*
1802 * This calls automatically the uea_disconnect method if necessary:
1803 */
1804 usb_deregister(&uea_driver);
1805
1806 printk(KERN_INFO "[ueagle-atm] driver unloaded\n");
1807}
1808
1809module_exit(uea_exit);
1810
1811MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka");
1812MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver");
1813MODULE_LICENSE("Dual BSD/GPL");
Linux kernel - Deliverables
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