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[PATCH] UEAGLE : add iso support
[deliverable/linux.git] / drivers / usb / atm / ueagle-atm.c
1 /*-
2 * Copyright (c) 2003, 2004
3 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
4 *
5 * Copyright (c) 2005 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 <linux/mutex.h>
67 #include <asm/unaligned.h>
68
69 #include "usbatm.h"
70
71 #define EAGLEUSBVERSION "ueagle 1.2"
72
73
74 /*
75 * Debug macros
76 */
77 #define uea_dbg(usb_dev, format, args...) \
78 do { \
79 if (debug >= 1) \
80 dev_dbg(&(usb_dev)->dev, \
81 "[ueagle-atm dbg] %s: " format, \
82 __FUNCTION__, ##args); \
83 } while (0)
84
85 #define uea_vdbg(usb_dev, format, args...) \
86 do { \
87 if (debug >= 2) \
88 dev_dbg(&(usb_dev)->dev, \
89 "[ueagle-atm vdbg] " format, ##args); \
90 } while (0)
91
92 #define uea_enters(usb_dev) \
93 uea_vdbg(usb_dev, "entering %s\n", __FUNCTION__)
94
95 #define uea_leaves(usb_dev) \
96 uea_vdbg(usb_dev, "leaving %s\n", __FUNCTION__)
97
98 #define uea_err(usb_dev, format,args...) \
99 dev_err(&(usb_dev)->dev ,"[UEAGLE-ATM] " format , ##args)
100
101 #define uea_warn(usb_dev, format,args...) \
102 dev_warn(&(usb_dev)->dev ,"[Ueagle-atm] " format, ##args)
103
104 #define uea_info(usb_dev, format,args...) \
105 dev_info(&(usb_dev)->dev ,"[ueagle-atm] " format, ##args)
106
107 struct uea_cmvs {
108 u32 address;
109 u16 offset;
110 u32 data;
111 } __attribute__ ((packed));
112
113 struct uea_softc {
114 struct usb_device *usb_dev;
115 struct usbatm_data *usbatm;
116
117 int modem_index;
118 unsigned int driver_info;
119
120 int booting;
121 int reset;
122
123 wait_queue_head_t sync_q;
124
125 struct task_struct *kthread;
126 u32 data;
127 wait_queue_head_t cmv_ack_wait;
128 int cmv_ack;
129
130 struct work_struct task;
131 u16 pageno;
132 u16 ovl;
133
134 const struct firmware *dsp_firm;
135 struct urb *urb_int;
136
137 u8 cmv_function;
138 u16 cmv_idx;
139 u32 cmv_address;
140 u16 cmv_offset;
141
142 /* keep in sync with eaglectl */
143 struct uea_stats {
144 struct {
145 u32 state;
146 u32 flags;
147 u32 mflags;
148 u32 vidcpe;
149 u32 vidco;
150 u32 dsrate;
151 u32 usrate;
152 u32 dsunc;
153 u32 usunc;
154 u32 dscorr;
155 u32 uscorr;
156 u32 txflow;
157 u32 rxflow;
158 u32 usattenuation;
159 u32 dsattenuation;
160 u32 dsmargin;
161 u32 usmargin;
162 u32 firmid;
163 } phy;
164 } stats;
165 };
166
167 /*
168 * Elsa IDs
169 */
170 #define ELSA_VID 0x05CC
171 #define ELSA_PID_PSTFIRM 0x3350
172 #define ELSA_PID_PREFIRM 0x3351
173
174 /*
175 * Sagem USB IDs
176 */
177 #define EAGLE_VID 0x1110
178 #define EAGLE_I_PID_PREFIRM 0x9010 /* Eagle I */
179 #define EAGLE_I_PID_PSTFIRM 0x900F /* Eagle I */
180
181 #define EAGLE_IIC_PID_PREFIRM 0x9024 /* Eagle IIC */
182 #define EAGLE_IIC_PID_PSTFIRM 0x9023 /* Eagle IIC */
183
184 #define EAGLE_II_PID_PREFIRM 0x9022 /* Eagle II */
185 #define EAGLE_II_PID_PSTFIRM 0x9021 /* Eagle II */
186
187 /*
188 * Eagle III Pid
189 */
190 #define EAGLE_III_PID_PREFIRM 0x9032 /* Eagle III */
191 #define EAGLE_III_PID_PSTFIRM 0x9031 /* Eagle III */
192
193 /*
194 * USR USB IDs
195 */
196 #define USR_VID 0x0BAF
197 #define MILLER_A_PID_PREFIRM 0x00F2
198 #define MILLER_A_PID_PSTFIRM 0x00F1
199 #define MILLER_B_PID_PREFIRM 0x00FA
200 #define MILLER_B_PID_PSTFIRM 0x00F9
201 #define HEINEKEN_A_PID_PREFIRM 0x00F6
202 #define HEINEKEN_A_PID_PSTFIRM 0x00F5
203 #define HEINEKEN_B_PID_PREFIRM 0x00F8
204 #define HEINEKEN_B_PID_PSTFIRM 0x00F7
205
206 #define PREFIRM 0
207 #define PSTFIRM (1<<7)
208 enum {
209 ADI930 = 0,
210 EAGLE_I,
211 EAGLE_II,
212 EAGLE_III
213 };
214
215 /* macros for both struct usb_device_id and struct uea_softc */
216 #define UEA_IS_PREFIRM(x) \
217 (!((x)->driver_info & PSTFIRM))
218 #define UEA_CHIP_VERSION(x) \
219 ((x)->driver_info & 0xf)
220
221 #define IS_ISDN(sc) \
222 (le16_to_cpu(sc->usb_dev->descriptor.bcdDevice) & 0x80)
223
224 #define INS_TO_USBDEV(ins) ins->usb_dev
225
226 #define GET_STATUS(data) \
227 ((data >> 8) & 0xf)
228 #define IS_OPERATIONAL(sc) \
229 (GET_STATUS(sc->stats.phy.state) == 2)
230
231 /*
232 * Set of macros to handle unaligned data in the firmware blob.
233 * The FW_GET_BYTE() macro is provided only for consistency.
234 */
235
236 #define FW_GET_BYTE(p) *((__u8 *) (p))
237 #define FW_GET_WORD(p) le16_to_cpu(get_unaligned((__le16 *) (p)))
238 #define FW_GET_LONG(p) le32_to_cpu(get_unaligned((__le32 *) (p)))
239
240 #define FW_DIR "ueagle-atm/"
241 #define NB_MODEM 4
242
243 #define BULK_TIMEOUT 300
244 #define CTRL_TIMEOUT 1000
245
246 #define ACK_TIMEOUT msecs_to_jiffies(1500)
247
248 #define UEA_INTR_IFACE_NO 0
249 #define UEA_US_IFACE_NO 1
250 #define UEA_DS_IFACE_NO 2
251
252 #define FASTEST_ISO_INTF 8
253
254 #define UEA_BULK_DATA_PIPE 0x02
255 #define UEA_IDMA_PIPE 0x04
256 #define UEA_INTR_PIPE 0x04
257 #define UEA_ISO_DATA_PIPE 0x08
258
259 #define UEA_SET_BLOCK 0x0001
260 #define UEA_SET_MODE 0x0003
261 #define UEA_SET_2183_DATA 0x0004
262 #define UEA_SET_TIMEOUT 0x0011
263
264 #define UEA_LOOPBACK_OFF 0x0002
265 #define UEA_LOOPBACK_ON 0x0003
266 #define UEA_BOOT_IDMA 0x0006
267 #define UEA_START_RESET 0x0007
268 #define UEA_END_RESET 0x0008
269
270 #define UEA_SWAP_MAILBOX (0x3fcd | 0x4000)
271 #define UEA_MPTX_START (0x3fce | 0x4000)
272 #define UEA_MPTX_MAILBOX (0x3fd6 | 0x4000)
273 #define UEA_MPRX_MAILBOX (0x3fdf | 0x4000)
274
275 /* structure describing a block within a DSP page */
276 struct block_info {
277 __le16 wHdr;
278 #define UEA_BIHDR 0xabcd
279 __le16 wAddress;
280 __le16 wSize;
281 __le16 wOvlOffset;
282 __le16 wOvl; /* overlay */
283 __le16 wLast;
284 } __attribute__ ((packed));
285 #define BLOCK_INFO_SIZE 12
286
287 /* structure representing a CMV (Configuration and Management Variable) */
288 struct cmv {
289 __le16 wPreamble;
290 #define PREAMBLE 0x535c
291 __u8 bDirection;
292 #define MODEMTOHOST 0x01
293 #define HOSTTOMODEM 0x10
294 __u8 bFunction;
295 #define FUNCTION_TYPE(f) ((f) >> 4)
296 #define MEMACCESS 0x1
297 #define ADSLDIRECTIVE 0x7
298
299 #define FUNCTION_SUBTYPE(f) ((f) & 0x0f)
300 /* for MEMACCESS */
301 #define REQUESTREAD 0x0
302 #define REQUESTWRITE 0x1
303 #define REPLYREAD 0x2
304 #define REPLYWRITE 0x3
305 /* for ADSLDIRECTIVE */
306 #define KERNELREADY 0x0
307 #define MODEMREADY 0x1
308
309 #define MAKEFUNCTION(t, s) (((t) & 0xf) << 4 | ((s) & 0xf))
310 __le16 wIndex;
311 __le32 dwSymbolicAddress;
312 #define MAKESA(a, b, c, d) \
313 (((c) & 0xff) << 24 | \
314 ((d) & 0xff) << 16 | \
315 ((a) & 0xff) << 8 | \
316 ((b) & 0xff))
317
318 #define SA_CNTL MAKESA('C', 'N', 'T', 'L')
319 #define SA_DIAG MAKESA('D', 'I', 'A', 'G')
320 #define SA_INFO MAKESA('I', 'N', 'F', 'O')
321 #define SA_OPTN MAKESA('O', 'P', 'T', 'N')
322 #define SA_RATE MAKESA('R', 'A', 'T', 'E')
323 #define SA_STAT MAKESA('S', 'T', 'A', 'T')
324 __le16 wOffsetAddress;
325 __le32 dwData;
326 } __attribute__ ((packed));
327 #define CMV_SIZE 16
328
329 /* structure representing swap information */
330 struct swap_info {
331 __u8 bSwapPageNo;
332 __u8 bOvl; /* overlay */
333 } __attribute__ ((packed));
334
335 /* structure representing interrupt data */
336 struct intr_pkt {
337 __u8 bType;
338 __u8 bNotification;
339 __le16 wValue;
340 __le16 wIndex;
341 __le16 wLength;
342 __le16 wInterrupt;
343 #define INT_LOADSWAPPAGE 0x0001
344 #define INT_INCOMINGCMV 0x0002
345 union {
346 struct {
347 struct swap_info swapinfo;
348 __le16 wDataSize;
349 } __attribute__ ((packed)) s1;
350
351 struct {
352 struct cmv cmv;
353 __le16 wDataSize;
354 } __attribute__ ((packed)) s2;
355 } __attribute__ ((packed)) u;
356 #define bSwapPageNo u.s1.swapinfo.bSwapPageNo
357 #define bOvl u.s1.swapinfo.bOvl
358 } __attribute__ ((packed));
359 #define INTR_PKT_SIZE 28
360
361 static struct usb_driver uea_driver;
362 static DEFINE_MUTEX(uea_mutex);
363 static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III"};
364
365 static int modem_index;
366 static unsigned int debug;
367 static int use_iso[NB_MODEM] = {[0 ... (NB_MODEM - 1)] = 1};
368 static int sync_wait[NB_MODEM];
369 static char *cmv_file[NB_MODEM];
370
371 module_param(debug, uint, 0644);
372 MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)");
373 module_param_array(use_iso, bool, NULL, 0644);
374 MODULE_PARM_DESC(use_iso, "use isochronous usb pipe for incoming traffic");
375 module_param_array(sync_wait, bool, NULL, 0644);
376 MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM");
377 module_param_array(cmv_file, charp, NULL, 0644);
378 MODULE_PARM_DESC(cmv_file,
379 "file name with configuration and management variables");
380
381 #define UPDATE_ATM_STAT(type, val) \
382 do { \
383 if (sc->usbatm->atm_dev) \
384 sc->usbatm->atm_dev->type = val; \
385 } while (0)
386
387 /* Firmware loading */
388 #define LOAD_INTERNAL 0xA0
389 #define F8051_USBCS 0x7f92
390
391 /**
392 * uea_send_modem_cmd - Send a command for pre-firmware devices.
393 */
394 static int uea_send_modem_cmd(struct usb_device *usb,
395 u16 addr, u16 size, u8 * buff)
396 {
397 int ret = -ENOMEM;
398 u8 *xfer_buff;
399
400 xfer_buff = kmalloc(size, GFP_KERNEL);
401 if (xfer_buff) {
402 memcpy(xfer_buff, buff, size);
403 ret = usb_control_msg(usb,
404 usb_sndctrlpipe(usb, 0),
405 LOAD_INTERNAL,
406 USB_DIR_OUT | USB_TYPE_VENDOR |
407 USB_RECIP_DEVICE, addr, 0, xfer_buff,
408 size, CTRL_TIMEOUT);
409 kfree(xfer_buff);
410 }
411
412 if (ret < 0)
413 return ret;
414
415 return (ret == size) ? 0 : -EIO;
416 }
417
418 static void uea_upload_pre_firmware(const struct firmware *fw_entry, void *context)
419 {
420 struct usb_device *usb = context;
421 u8 *pfw, value;
422 u32 crc = 0;
423 int ret, size;
424
425 uea_enters(usb);
426 if (!fw_entry) {
427 uea_err(usb, "firmware is not available\n");
428 goto err;
429 }
430
431 pfw = fw_entry->data;
432 size = fw_entry->size;
433 if (size < 4)
434 goto err_fw_corrupted;
435
436 crc = FW_GET_LONG(pfw);
437 pfw += 4;
438 size -= 4;
439 if (crc32_be(0, pfw, size) != crc)
440 goto err_fw_corrupted;
441
442 /*
443 * Start to upload formware : send reset
444 */
445 value = 1;
446 ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value);
447
448 if (ret < 0) {
449 uea_err(usb, "modem reset failed with error %d\n", ret);
450 goto err;
451 }
452
453 while (size > 3) {
454 u8 len = FW_GET_BYTE(pfw);
455 u16 add = FW_GET_WORD(pfw + 1);
456
457 size -= len + 3;
458 if (size < 0)
459 goto err_fw_corrupted;
460
461 ret = uea_send_modem_cmd(usb, add, len, pfw + 3);
462 if (ret < 0) {
463 uea_err(usb, "uploading firmware data failed "
464 "with error %d\n", ret);
465 goto err;
466 }
467 pfw += len + 3;
468 }
469
470 if (size != 0)
471 goto err_fw_corrupted;
472
473 /*
474 * Tell the modem we finish : de-assert reset
475 */
476 value = 0;
477 ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value);
478 if (ret < 0)
479 uea_err(usb, "modem de-assert failed with error %d\n", ret);
480 else
481 uea_info(usb, "firmware uploaded\n");
482
483 uea_leaves(usb);
484 return;
485
486 err_fw_corrupted:
487 uea_err(usb, "firmware is corrupted\n");
488 err:
489 uea_leaves(usb);
490 }
491
492 /**
493 * uea_load_firmware - Load usb firmware for pre-firmware devices.
494 */
495 static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
496 {
497 int ret;
498 char *fw_name = FW_DIR "eagle.fw";
499
500 uea_enters(usb);
501 uea_info(usb, "pre-firmware device, uploading firmware\n");
502
503 switch (ver) {
504 case ADI930:
505 fw_name = FW_DIR "adi930.fw";
506 break;
507 case EAGLE_I:
508 fw_name = FW_DIR "eagleI.fw";
509 break;
510 case EAGLE_II:
511 fw_name = FW_DIR "eagleII.fw";
512 break;
513 case EAGLE_III:
514 fw_name = FW_DIR "eagleIII.fw";
515 break;
516 }
517
518 ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev, usb, uea_upload_pre_firmware);
519 if (ret)
520 uea_err(usb, "firmware %s is not available\n", fw_name);
521 else
522 uea_info(usb, "loading firmware %s\n", fw_name);
523
524 uea_leaves(usb);
525 return ret;
526 }
527
528 /* modem management : dsp firmware, send/read CMV, monitoring statistic
529 */
530
531 /*
532 * Make sure that the DSP code provided is safe to use.
533 */
534 static int check_dsp(u8 *dsp, unsigned int len)
535 {
536 u8 pagecount, blockcount;
537 u16 blocksize;
538 u32 pageoffset;
539 unsigned int i, j, p, pp;
540
541 pagecount = FW_GET_BYTE(dsp);
542 p = 1;
543
544 /* enough space for page offsets? */
545 if (p + 4 * pagecount > len)
546 return 1;
547
548 for (i = 0; i < pagecount; i++) {
549
550 pageoffset = FW_GET_LONG(dsp + p);
551 p += 4;
552
553 if (pageoffset == 0)
554 continue;
555
556 /* enough space for blockcount? */
557 if (pageoffset >= len)
558 return 1;
559
560 pp = pageoffset;
561 blockcount = FW_GET_BYTE(dsp + pp);
562 pp += 1;
563
564 for (j = 0; j < blockcount; j++) {
565
566 /* enough space for block header? */
567 if (pp + 4 > len)
568 return 1;
569
570 pp += 2; /* skip blockaddr */
571 blocksize = FW_GET_WORD(dsp + pp);
572 pp += 2;
573
574 /* enough space for block data? */
575 if (pp + blocksize > len)
576 return 1;
577
578 pp += blocksize;
579 }
580 }
581
582 return 0;
583 }
584
585 /*
586 * send data to the idma pipe
587 * */
588 static int uea_idma_write(struct uea_softc *sc, void *data, u32 size)
589 {
590 int ret = -ENOMEM;
591 u8 *xfer_buff;
592 int bytes_read;
593
594 xfer_buff = kmalloc(size, GFP_KERNEL);
595 if (!xfer_buff) {
596 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
597 return ret;
598 }
599
600 memcpy(xfer_buff, data, size);
601
602 ret = usb_bulk_msg(sc->usb_dev,
603 usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
604 xfer_buff, size, &bytes_read, BULK_TIMEOUT);
605
606 kfree(xfer_buff);
607 if (ret < 0)
608 return ret;
609 if (size != bytes_read) {
610 uea_err(INS_TO_USBDEV(sc), "size != bytes_read %d %d\n", size,
611 bytes_read);
612 return -EIO;
613 }
614
615 return 0;
616 }
617
618 static int request_dsp(struct uea_softc *sc)
619 {
620 int ret;
621 char *dsp_name;
622
623 if (UEA_CHIP_VERSION(sc) == ADI930) {
624 if (IS_ISDN(sc))
625 dsp_name = FW_DIR "DSP9i.bin";
626 else
627 dsp_name = FW_DIR "DSP9p.bin";
628 } else {
629 if (IS_ISDN(sc))
630 dsp_name = FW_DIR "DSPei.bin";
631 else
632 dsp_name = FW_DIR "DSPep.bin";
633 }
634
635 ret = request_firmware(&sc->dsp_firm,
636 dsp_name, &sc->usb_dev->dev);
637 if (ret < 0) {
638 uea_err(INS_TO_USBDEV(sc),
639 "requesting firmware %s failed with error %d\n",
640 dsp_name, ret);
641 return ret;
642 }
643
644 if (check_dsp(sc->dsp_firm->data, sc->dsp_firm->size)) {
645 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
646 dsp_name);
647 release_firmware(sc->dsp_firm);
648 sc->dsp_firm = NULL;
649 return -EILSEQ;
650 }
651
652 return 0;
653 }
654
655 /*
656 * The uea_load_page() function must be called within a process context
657 */
658 static void uea_load_page(void *xsc)
659 {
660 struct uea_softc *sc = xsc;
661 u16 pageno = sc->pageno;
662 u16 ovl = sc->ovl;
663 struct block_info bi;
664
665 u8 *p;
666 u8 pagecount, blockcount;
667 u16 blockaddr, blocksize;
668 u32 pageoffset;
669 int i;
670
671 /* reload firmware when reboot start and it's loaded already */
672 if (ovl == 0 && pageno == 0 && sc->dsp_firm) {
673 release_firmware(sc->dsp_firm);
674 sc->dsp_firm = NULL;
675 }
676
677 if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
678 return;
679
680 p = sc->dsp_firm->data;
681 pagecount = FW_GET_BYTE(p);
682 p += 1;
683
684 if (pageno >= pagecount)
685 goto bad1;
686
687 p += 4 * pageno;
688 pageoffset = FW_GET_LONG(p);
689
690 if (pageoffset == 0)
691 goto bad1;
692
693 p = sc->dsp_firm->data + pageoffset;
694 blockcount = FW_GET_BYTE(p);
695 p += 1;
696
697 uea_dbg(INS_TO_USBDEV(sc),
698 "sending %u blocks for DSP page %u\n", blockcount, pageno);
699
700 bi.wHdr = cpu_to_le16(UEA_BIHDR);
701 bi.wOvl = cpu_to_le16(ovl);
702 bi.wOvlOffset = cpu_to_le16(ovl | 0x8000);
703
704 for (i = 0; i < blockcount; i++) {
705 blockaddr = FW_GET_WORD(p);
706 p += 2;
707
708 blocksize = FW_GET_WORD(p);
709 p += 2;
710
711 bi.wSize = cpu_to_le16(blocksize);
712 bi.wAddress = cpu_to_le16(blockaddr);
713 bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0);
714
715 /* send block info through the IDMA pipe */
716 if (uea_idma_write(sc, &bi, BLOCK_INFO_SIZE))
717 goto bad2;
718
719 /* send block data through the IDMA pipe */
720 if (uea_idma_write(sc, p, blocksize))
721 goto bad2;
722
723 p += blocksize;
724 }
725
726 return;
727
728 bad2:
729 uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i);
730 return;
731 bad1:
732 uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n",pageno);
733 }
734
735 static inline void wake_up_cmv_ack(struct uea_softc *sc)
736 {
737 sc->cmv_ack = 1;
738 wake_up(&sc->cmv_ack_wait);
739 }
740
741 static inline int wait_cmv_ack(struct uea_softc *sc)
742 {
743 int ret = wait_event_timeout(sc->cmv_ack_wait,
744 sc->cmv_ack, ACK_TIMEOUT);
745 sc->cmv_ack = 0;
746
747 if (ret < 0)
748 return ret;
749
750 return (ret == 0) ? -ETIMEDOUT : 0;
751
752 }
753
754 #define UCDC_SEND_ENCAPSULATED_COMMAND 0x00
755
756 static int uea_request(struct uea_softc *sc,
757 u16 value, u16 index, u16 size, void *data)
758 {
759 u8 *xfer_buff;
760 int ret = -ENOMEM;
761
762 xfer_buff = kmalloc(size, GFP_KERNEL);
763 if (!xfer_buff) {
764 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
765 return ret;
766 }
767 memcpy(xfer_buff, data, size);
768
769 ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
770 UCDC_SEND_ENCAPSULATED_COMMAND,
771 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
772 value, index, xfer_buff, size, CTRL_TIMEOUT);
773
774 kfree(xfer_buff);
775 if (ret < 0) {
776 uea_err(INS_TO_USBDEV(sc), "usb_control_msg error %d\n", ret);
777 return ret;
778 }
779
780 if (ret != size) {
781 uea_err(INS_TO_USBDEV(sc),
782 "usb_control_msg send only %d bytes (instead of %d)\n",
783 ret, size);
784 return -EIO;
785 }
786
787 return 0;
788 }
789
790 static int uea_cmv(struct uea_softc *sc,
791 u8 function, u32 address, u16 offset, u32 data)
792 {
793 struct cmv cmv;
794 int ret;
795
796 /* we send a request, but we expect a reply */
797 sc->cmv_function = function | 0x2;
798 sc->cmv_idx++;
799 sc->cmv_address = address;
800 sc->cmv_offset = offset;
801
802 cmv.wPreamble = cpu_to_le16(PREAMBLE);
803 cmv.bDirection = HOSTTOMODEM;
804 cmv.bFunction = function;
805 cmv.wIndex = cpu_to_le16(sc->cmv_idx);
806 put_unaligned(cpu_to_le32(address), &cmv.dwSymbolicAddress);
807 cmv.wOffsetAddress = cpu_to_le16(offset);
808 put_unaligned(cpu_to_le32(data >> 16 | data << 16), &cmv.dwData);
809
810 ret = uea_request(sc, UEA_SET_BLOCK, UEA_MPTX_START, CMV_SIZE, &cmv);
811 if (ret < 0)
812 return ret;
813 return wait_cmv_ack(sc);
814 }
815
816 static inline int uea_read_cmv(struct uea_softc *sc,
817 u32 address, u16 offset, u32 *data)
818 {
819 int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTREAD),
820 address, offset, 0);
821 if (ret < 0)
822 uea_err(INS_TO_USBDEV(sc),
823 "reading cmv failed with error %d\n", ret);
824 else
825 *data = sc->data;
826
827 return ret;
828 }
829
830 static inline int uea_write_cmv(struct uea_softc *sc,
831 u32 address, u16 offset, u32 data)
832 {
833 int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTWRITE),
834 address, offset, data);
835 if (ret < 0)
836 uea_err(INS_TO_USBDEV(sc),
837 "writing cmv failed with error %d\n", ret);
838
839 return ret;
840 }
841
842 /*
843 * Monitor the modem and update the stat
844 * return 0 if everything is ok
845 * return < 0 if an error occurs (-EAGAIN reboot needed)
846 */
847 static int uea_stat(struct uea_softc *sc)
848 {
849 u32 data;
850 int ret;
851
852 uea_enters(INS_TO_USBDEV(sc));
853 data = sc->stats.phy.state;
854
855 ret = uea_read_cmv(sc, SA_STAT, 0, &sc->stats.phy.state);
856 if (ret < 0)
857 return ret;
858
859 switch (GET_STATUS(sc->stats.phy.state)) {
860 case 0: /* not yet synchronized */
861 uea_dbg(INS_TO_USBDEV(sc),
862 "modem not yet synchronized\n");
863 return 0;
864
865 case 1: /* initialization */
866 uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
867 return 0;
868
869 case 2: /* operational */
870 uea_vdbg(INS_TO_USBDEV(sc), "modem operational\n");
871 break;
872
873 case 3: /* fail ... */
874 uea_info(INS_TO_USBDEV(sc), "modem synchronization failed\n");
875 return -EAGAIN;
876
877 case 4 ... 6: /* test state */
878 uea_warn(INS_TO_USBDEV(sc),
879 "modem in test mode - not supported\n");
880 return -EAGAIN;
881
882 case 7: /* fast-retain ... */
883 uea_info(INS_TO_USBDEV(sc), "modem in fast-retain mode\n");
884 return 0;
885 default:
886 uea_err(INS_TO_USBDEV(sc), "modem invalid SW mode %d\n",
887 GET_STATUS(sc->stats.phy.state));
888 return -EAGAIN;
889 }
890
891 if (GET_STATUS(data) != 2) {
892 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
893 uea_info(INS_TO_USBDEV(sc), "modem operational\n");
894
895 /* release the dsp firmware as it is not needed until
896 * the next failure
897 */
898 if (sc->dsp_firm) {
899 release_firmware(sc->dsp_firm);
900 sc->dsp_firm = NULL;
901 }
902
903 ret = uea_read_cmv(sc, SA_INFO, 10, &sc->stats.phy.firmid);
904 if (ret < 0)
905 return ret;
906 uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
907 sc->stats.phy.firmid);
908 }
909
910 /* always update it as atm layer could not be init when we switch to
911 * operational state
912 */
913 UPDATE_ATM_STAT(signal, ATM_PHY_SIG_FOUND);
914
915 /* wake up processes waiting for synchronization */
916 wake_up(&sc->sync_q);
917
918 ret = uea_read_cmv(sc, SA_DIAG, 2, &sc->stats.phy.flags);
919 if (ret < 0)
920 return ret;
921 sc->stats.phy.mflags |= sc->stats.phy.flags;
922
923 /* in case of a flags ( for example delineation LOSS (& 0x10)),
924 * we check the status again in order to detect the failure earlier
925 */
926 if (sc->stats.phy.flags) {
927 uea_dbg(INS_TO_USBDEV(sc), "Stat flag = %d\n",
928 sc->stats.phy.flags);
929 return 0;
930 }
931
932 ret = uea_read_cmv(sc, SA_RATE, 0, &data);
933 if (ret < 0)
934 return ret;
935
936 /* in bulk mode the modem have problem with high rate
937 * changing internal timing could improve things, but the
938 * value is misterious.
939 * ADI930 don't support it (-EPIPE error).
940 */
941 if (UEA_CHIP_VERSION(sc) != ADI930
942 && !use_iso[sc->modem_index]
943 && sc->stats.phy.dsrate != (data >> 16) * 32) {
944 /* Original timming from ADI(used in windows driver)
945 * 0x20ffff>>16 * 32 = 32 * 32 = 1Mbits
946 */
947 u16 timeout = (data <= 0x20ffff) ? 0 : 1;
948 ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
949 uea_info(INS_TO_USBDEV(sc),
950 "setting new timeout %d%s\n", timeout,
951 ret < 0?" failed":"");
952 }
953 sc->stats.phy.dsrate = (data >> 16) * 32;
954 sc->stats.phy.usrate = (data & 0xffff) * 32;
955 UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
956
957 ret = uea_read_cmv(sc, SA_DIAG, 23, &data);
958 if (ret < 0)
959 return ret;
960 sc->stats.phy.dsattenuation = (data & 0xff) / 2;
961
962 ret = uea_read_cmv(sc, SA_DIAG, 47, &data);
963 if (ret < 0)
964 return ret;
965 sc->stats.phy.usattenuation = (data & 0xff) / 2;
966
967 ret = uea_read_cmv(sc, SA_DIAG, 25, &sc->stats.phy.dsmargin);
968 if (ret < 0)
969 return ret;
970
971 ret = uea_read_cmv(sc, SA_DIAG, 49, &sc->stats.phy.usmargin);
972 if (ret < 0)
973 return ret;
974
975 ret = uea_read_cmv(sc, SA_DIAG, 51, &sc->stats.phy.rxflow);
976 if (ret < 0)
977 return ret;
978
979 ret = uea_read_cmv(sc, SA_DIAG, 52, &sc->stats.phy.txflow);
980 if (ret < 0)
981 return ret;
982
983 ret = uea_read_cmv(sc, SA_DIAG, 54, &sc->stats.phy.dsunc);
984 if (ret < 0)
985 return ret;
986
987 /* only for atu-c */
988 ret = uea_read_cmv(sc, SA_DIAG, 58, &sc->stats.phy.usunc);
989 if (ret < 0)
990 return ret;
991
992 ret = uea_read_cmv(sc, SA_DIAG, 53, &sc->stats.phy.dscorr);
993 if (ret < 0)
994 return ret;
995
996 /* only for atu-c */
997 ret = uea_read_cmv(sc, SA_DIAG, 57, &sc->stats.phy.uscorr);
998 if (ret < 0)
999 return ret;
1000
1001 ret = uea_read_cmv(sc, SA_INFO, 8, &sc->stats.phy.vidco);
1002 if (ret < 0)
1003 return ret;
1004
1005 ret = uea_read_cmv(sc, SA_INFO, 13, &sc->stats.phy.vidcpe);
1006 if (ret < 0)
1007 return ret;
1008
1009 return 0;
1010 }
1011
1012 static int request_cmvs(struct uea_softc *sc,
1013 struct uea_cmvs **cmvs, const struct firmware **fw)
1014 {
1015 int ret, size;
1016 u8 *data;
1017 char *file;
1018 static char cmv_name[256] = FW_DIR;
1019
1020 if (cmv_file[sc->modem_index] == NULL) {
1021 if (UEA_CHIP_VERSION(sc) == ADI930)
1022 file = (IS_ISDN(sc)) ? "CMV9i.bin" : "CMV9p.bin";
1023 else
1024 file = (IS_ISDN(sc)) ? "CMVei.bin" : "CMVep.bin";
1025 } else
1026 file = cmv_file[sc->modem_index];
1027
1028 strcpy(cmv_name, FW_DIR);
1029 strlcat(cmv_name, file, sizeof(cmv_name));
1030
1031 ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
1032 if (ret < 0) {
1033 uea_err(INS_TO_USBDEV(sc),
1034 "requesting firmware %s failed with error %d\n",
1035 cmv_name, ret);
1036 return ret;
1037 }
1038
1039 data = (u8 *) (*fw)->data;
1040 size = *data * sizeof(struct uea_cmvs) + 1;
1041 if (size != (*fw)->size) {
1042 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1043 cmv_name);
1044 release_firmware(*fw);
1045 return -EILSEQ;
1046 }
1047
1048 *cmvs = (struct uea_cmvs *)(data + 1);
1049 return *data;
1050 }
1051
1052 /* Start boot post firmware modem:
1053 * - send reset commands through usb control pipe
1054 * - start workqueue for DSP loading
1055 * - send CMV options to modem
1056 */
1057
1058 static int uea_start_reset(struct uea_softc *sc)
1059 {
1060 u16 zero = 0; /* ;-) */
1061 int i, len, ret;
1062 struct uea_cmvs *cmvs;
1063 const struct firmware *cmvs_fw;
1064
1065 uea_enters(INS_TO_USBDEV(sc));
1066 uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");
1067
1068 sc->booting = 1;
1069 UPDATE_ATM_STAT(signal, ATM_PHY_SIG_LOST);
1070
1071 /* reset statistics */
1072 memset(&sc->stats, 0, sizeof(struct uea_stats));
1073
1074 /* tell the modem that we want to boot in IDMA mode */
1075 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1076 uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL);
1077
1078 /* enter reset mode */
1079 uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL);
1080
1081 /* original driver use 200ms, but windows driver use 100ms */
1082 msleep(100);
1083
1084 /* leave reset mode */
1085 uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);
1086
1087 /* clear tx and rx mailboxes */
1088 uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
1089 uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
1090 uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
1091
1092 msleep(1000);
1093 sc->cmv_function = MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY);
1094 sc->booting = 0;
1095
1096 /* start loading DSP */
1097 sc->pageno = 0;
1098 sc->ovl = 0;
1099 schedule_work(&sc->task);
1100
1101 /* wait for modem ready CMV */
1102 ret = wait_cmv_ack(sc);
1103 if (ret < 0)
1104 return ret;
1105
1106 /* Enter in R-IDLE (cmv) until instructed otherwise */
1107 ret = uea_write_cmv(sc, SA_CNTL, 0, 1);
1108 if (ret < 0)
1109 return ret;
1110
1111 /* get options */
1112 ret = len = request_cmvs(sc, &cmvs, &cmvs_fw);
1113 if (ret < 0)
1114 return ret;
1115
1116 /* send options */
1117 for (i = 0; i < len; i++) {
1118 ret = uea_write_cmv(sc, FW_GET_LONG(&cmvs[i].address),
1119 FW_GET_WORD(&cmvs[i].offset),
1120 FW_GET_LONG(&cmvs[i].data));
1121 if (ret < 0)
1122 goto out;
1123 }
1124 /* Enter in R-ACT-REQ */
1125 ret = uea_write_cmv(sc, SA_CNTL, 0, 2);
1126 out:
1127 release_firmware(cmvs_fw);
1128 sc->reset = 0;
1129 uea_leaves(INS_TO_USBDEV(sc));
1130 return ret;
1131 }
1132
1133 /*
1134 * In case of an error wait 1s before rebooting the modem
1135 * if the modem don't request reboot (-EAGAIN).
1136 * Monitor the modem every 1s.
1137 */
1138
1139 static int uea_kthread(void *data)
1140 {
1141 struct uea_softc *sc = data;
1142 int ret = -EAGAIN;
1143
1144 uea_enters(INS_TO_USBDEV(sc));
1145 while (!kthread_should_stop()) {
1146 if (ret < 0 || sc->reset)
1147 ret = uea_start_reset(sc);
1148 if (!ret)
1149 ret = uea_stat(sc);
1150 if (ret != -EAGAIN)
1151 msleep(1000);
1152 }
1153 uea_leaves(INS_TO_USBDEV(sc));
1154 return ret;
1155 }
1156
1157 /* Load second usb firmware for ADI930 chip */
1158 static int load_XILINX_firmware(struct uea_softc *sc)
1159 {
1160 const struct firmware *fw_entry;
1161 int ret, size, u, ln;
1162 u8 *pfw, value;
1163 char *fw_name = FW_DIR "930-fpga.bin";
1164
1165 uea_enters(INS_TO_USBDEV(sc));
1166
1167 ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev);
1168 if (ret) {
1169 uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n",
1170 fw_name);
1171 goto err0;
1172 }
1173
1174 pfw = fw_entry->data;
1175 size = fw_entry->size;
1176 if (size != 0x577B) {
1177 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1178 fw_name);
1179 ret = -EILSEQ;
1180 goto err1;
1181 }
1182 for (u = 0; u < size; u += ln) {
1183 ln = min(size - u, 64);
1184 ret = uea_request(sc, 0xe, 0, ln, pfw + u);
1185 if (ret < 0) {
1186 uea_err(INS_TO_USBDEV(sc),
1187 "elsa download data failed (%d)\n", ret);
1188 goto err1;
1189 }
1190 }
1191
1192 /* finish to send the fpga
1193 */
1194 ret = uea_request(sc, 0xe, 1, 0, NULL);
1195 if (ret < 0) {
1196 uea_err(INS_TO_USBDEV(sc),
1197 "elsa download data failed (%d)\n", ret);
1198 goto err1;
1199 }
1200
1201 /*
1202 * Tell the modem we finish : de-assert reset
1203 */
1204 value = 0;
1205 ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
1206 if (ret < 0)
1207 uea_err(sc->usb_dev, "elsa de-assert failed with error %d\n", ret);
1208
1209
1210 err1:
1211 release_firmware(fw_entry);
1212 err0:
1213 uea_leaves(INS_TO_USBDEV(sc));
1214 return ret;
1215 }
1216
1217 static void uea_dispatch_cmv(struct uea_softc *sc, struct cmv* cmv)
1218 {
1219 uea_enters(INS_TO_USBDEV(sc));
1220 if (le16_to_cpu(cmv->wPreamble) != PREAMBLE)
1221 goto bad1;
1222
1223 if (cmv->bDirection != MODEMTOHOST)
1224 goto bad1;
1225
1226 /* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
1227 * the first MEMACESS cmv. Ignore it...
1228 */
1229 if (cmv->bFunction != sc->cmv_function) {
1230 if (UEA_CHIP_VERSION(sc) == ADI930
1231 && cmv->bFunction == MAKEFUNCTION(2, 2)) {
1232 cmv->wIndex = cpu_to_le16(sc->cmv_idx);
1233 put_unaligned(cpu_to_le32(sc->cmv_address), &cmv->dwSymbolicAddress);
1234 cmv->wOffsetAddress = cpu_to_le16(sc->cmv_offset);
1235 }
1236 else
1237 goto bad2;
1238 }
1239
1240 if (cmv->bFunction == MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY)) {
1241 wake_up_cmv_ack(sc);
1242 return;
1243 }
1244
1245 /* in case of MEMACCESS */
1246 if (le16_to_cpu(cmv->wIndex) != sc->cmv_idx ||
1247 le32_to_cpu(get_unaligned(&cmv->dwSymbolicAddress)) !=
1248 sc->cmv_address
1249 || le16_to_cpu(cmv->wOffsetAddress) != sc->cmv_offset)
1250 goto bad2;
1251
1252 sc->data = le32_to_cpu(get_unaligned(&cmv->dwData));
1253 sc->data = sc->data << 16 | sc->data >> 16;
1254
1255 wake_up_cmv_ack(sc);
1256 return;
1257
1258 bad2:
1259 uea_err(INS_TO_USBDEV(sc), "unexpected cmv received,"
1260 "Function : %d, Subfunction : %d\n",
1261 FUNCTION_TYPE(cmv->bFunction),
1262 FUNCTION_SUBTYPE(cmv->bFunction));
1263 return;
1264
1265 bad1:
1266 uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
1267 "wPreamble %d, bDirection %d\n",
1268 le16_to_cpu(cmv->wPreamble), cmv->bDirection);
1269 }
1270
1271 /*
1272 * interrupt handler
1273 */
1274 static void uea_intr(struct urb *urb, struct pt_regs *regs)
1275 {
1276 struct uea_softc *sc = (struct uea_softc *)urb->context;
1277 struct intr_pkt *intr;
1278 uea_enters(INS_TO_USBDEV(sc));
1279
1280 if (urb->status < 0) {
1281 uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n",
1282 urb->status);
1283 return;
1284 }
1285
1286 intr = (struct intr_pkt *) urb->transfer_buffer;
1287
1288 /* device-to-host interrupt */
1289 if (intr->bType != 0x08 || sc->booting) {
1290 uea_err(INS_TO_USBDEV(sc), "wrong intr\n");
1291 // rebooting ?
1292 // sc->reset = 1;
1293 goto resubmit;
1294 }
1295
1296 switch (le16_to_cpu(intr->wInterrupt)) {
1297 case INT_LOADSWAPPAGE:
1298 sc->pageno = intr->bSwapPageNo;
1299 sc->ovl = intr->bOvl >> 4 | intr->bOvl << 4;
1300 schedule_work(&sc->task);
1301 break;
1302
1303 case INT_INCOMINGCMV:
1304 uea_dispatch_cmv(sc, &intr->u.s2.cmv);
1305 break;
1306
1307 default:
1308 uea_err(INS_TO_USBDEV(sc), "unknown intr %u\n",
1309 le16_to_cpu(intr->wInterrupt));
1310 }
1311
1312 resubmit:
1313 usb_submit_urb(sc->urb_int, GFP_ATOMIC);
1314 }
1315
1316 /*
1317 * Start the modem : init the data and start kernel thread
1318 */
1319 static int uea_boot(struct uea_softc *sc)
1320 {
1321 int ret;
1322 struct intr_pkt *intr;
1323
1324 uea_enters(INS_TO_USBDEV(sc));
1325
1326 INIT_WORK(&sc->task, uea_load_page, sc);
1327 init_waitqueue_head(&sc->sync_q);
1328 init_waitqueue_head(&sc->cmv_ack_wait);
1329
1330 if (UEA_CHIP_VERSION(sc) == ADI930)
1331 load_XILINX_firmware(sc);
1332
1333 intr = kmalloc(INTR_PKT_SIZE, GFP_KERNEL);
1334 if (!intr) {
1335 uea_err(INS_TO_USBDEV(sc),
1336 "cannot allocate interrupt package\n");
1337 uea_leaves(INS_TO_USBDEV(sc));
1338 return -ENOMEM;
1339 }
1340
1341 sc->urb_int = usb_alloc_urb(0, GFP_KERNEL);
1342 if (!sc->urb_int) {
1343 uea_err(INS_TO_USBDEV(sc), "cannot allocate interrupt URB\n");
1344 goto err;
1345 }
1346
1347 usb_fill_int_urb(sc->urb_int, sc->usb_dev,
1348 usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
1349 intr, INTR_PKT_SIZE, uea_intr, sc,
1350 sc->usb_dev->actconfig->interface[0]->altsetting[0].
1351 endpoint[0].desc.bInterval);
1352
1353 ret = usb_submit_urb(sc->urb_int, GFP_KERNEL);
1354 if (ret < 0) {
1355 uea_err(INS_TO_USBDEV(sc),
1356 "urb submition failed with error %d\n", ret);
1357 goto err1;
1358 }
1359
1360 sc->kthread = kthread_run(uea_kthread, sc, "ueagle-atm");
1361 if (sc->kthread == ERR_PTR(-ENOMEM)) {
1362 uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
1363 goto err2;
1364 }
1365
1366 uea_leaves(INS_TO_USBDEV(sc));
1367 return 0;
1368
1369 err2:
1370 usb_kill_urb(sc->urb_int);
1371 err1:
1372 kfree(intr);
1373 err:
1374 usb_free_urb(sc->urb_int);
1375 uea_leaves(INS_TO_USBDEV(sc));
1376 return -ENOMEM;
1377 }
1378
1379 /*
1380 * Stop the modem : kill kernel thread and free data
1381 */
1382 static void uea_stop(struct uea_softc *sc)
1383 {
1384 int ret;
1385 uea_enters(INS_TO_USBDEV(sc));
1386 ret = kthread_stop(sc->kthread);
1387 uea_info(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret);
1388
1389 /* stop any pending boot process */
1390 flush_scheduled_work();
1391
1392 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1393
1394 usb_kill_urb(sc->urb_int);
1395 kfree(sc->urb_int->transfer_buffer);
1396 usb_free_urb(sc->urb_int);
1397
1398 if (sc->dsp_firm)
1399 release_firmware(sc->dsp_firm);
1400 uea_leaves(INS_TO_USBDEV(sc));
1401 }
1402
1403 /* syfs interface */
1404 static struct uea_softc *dev_to_uea(struct device *dev)
1405 {
1406 struct usb_interface *intf;
1407 struct usbatm_data *usbatm;
1408
1409 intf = to_usb_interface(dev);
1410 if (!intf)
1411 return NULL;
1412
1413 usbatm = usb_get_intfdata(intf);
1414 if (!usbatm)
1415 return NULL;
1416
1417 return usbatm->driver_data;
1418 }
1419
1420 static ssize_t read_status(struct device *dev, struct device_attribute *attr,
1421 char *buf)
1422 {
1423 int ret = -ENODEV;
1424 struct uea_softc *sc;
1425
1426 mutex_lock(&uea_mutex);
1427 sc = dev_to_uea(dev);
1428 if (!sc)
1429 goto out;
1430 ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.state);
1431 out:
1432 mutex_unlock(&uea_mutex);
1433 return ret;
1434 }
1435
1436 static ssize_t reboot(struct device *dev, struct device_attribute *attr,
1437 const char *buf, size_t count)
1438 {
1439 int ret = -ENODEV;
1440 struct uea_softc *sc;
1441
1442 mutex_lock(&uea_mutex);
1443 sc = dev_to_uea(dev);
1444 if (!sc)
1445 goto out;
1446 sc->reset = 1;
1447 ret = count;
1448 out:
1449 mutex_unlock(&uea_mutex);
1450 return ret;
1451 }
1452
1453 static DEVICE_ATTR(stat_status, S_IWUGO | S_IRUGO, read_status, reboot);
1454
1455 static ssize_t read_human_status(struct device *dev, struct device_attribute *attr,
1456 char *buf)
1457 {
1458 int ret = -ENODEV;
1459 struct uea_softc *sc;
1460
1461 mutex_lock(&uea_mutex);
1462 sc = dev_to_uea(dev);
1463 if (!sc)
1464 goto out;
1465
1466 switch (GET_STATUS(sc->stats.phy.state)) {
1467 case 0:
1468 ret = sprintf(buf, "Modem is booting\n");
1469 break;
1470 case 1:
1471 ret = sprintf(buf, "Modem is initializing\n");
1472 break;
1473 case 2:
1474 ret = sprintf(buf, "Modem is operational\n");
1475 break;
1476 default:
1477 ret = sprintf(buf, "Modem synchronization failed\n");
1478 break;
1479 }
1480 out:
1481 mutex_unlock(&uea_mutex);
1482 return ret;
1483 }
1484
1485 static DEVICE_ATTR(stat_human_status, S_IWUGO | S_IRUGO, read_human_status, NULL);
1486
1487 static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
1488 char *buf)
1489 {
1490 int ret = -ENODEV;
1491 struct uea_softc *sc;
1492
1493 mutex_lock(&uea_mutex);
1494 sc = dev_to_uea(dev);
1495 if (!sc)
1496 goto out;
1497
1498 if (sc->stats.phy.flags & 0x0C00)
1499 ret = sprintf(buf, "ERROR\n");
1500 else if (sc->stats.phy.flags & 0x0030)
1501 ret = sprintf(buf, "LOSS\n");
1502 else
1503 ret = sprintf(buf, "GOOD\n");
1504 out:
1505 mutex_unlock(&uea_mutex);
1506 return ret;
1507 }
1508
1509 static DEVICE_ATTR(stat_delin, S_IWUGO | S_IRUGO, read_delin, NULL);
1510
1511 #define UEA_ATTR(name, reset) \
1512 \
1513 static ssize_t read_##name(struct device *dev, \
1514 struct device_attribute *attr, char *buf) \
1515 { \
1516 int ret = -ENODEV; \
1517 struct uea_softc *sc; \
1518 \
1519 mutex_lock(&uea_mutex); \
1520 sc = dev_to_uea(dev); \
1521 if (!sc) \
1522 goto out; \
1523 ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name); \
1524 if (reset) \
1525 sc->stats.phy.name = 0; \
1526 out: \
1527 mutex_unlock(&uea_mutex); \
1528 return ret; \
1529 } \
1530 \
1531 static DEVICE_ATTR(stat_##name, S_IRUGO, read_##name, NULL)
1532
1533 UEA_ATTR(mflags, 1);
1534 UEA_ATTR(vidcpe, 0);
1535 UEA_ATTR(usrate, 0);
1536 UEA_ATTR(dsrate, 0);
1537 UEA_ATTR(usattenuation, 0);
1538 UEA_ATTR(dsattenuation, 0);
1539 UEA_ATTR(usmargin, 0);
1540 UEA_ATTR(dsmargin, 0);
1541 UEA_ATTR(txflow, 0);
1542 UEA_ATTR(rxflow, 0);
1543 UEA_ATTR(uscorr, 0);
1544 UEA_ATTR(dscorr, 0);
1545 UEA_ATTR(usunc, 0);
1546 UEA_ATTR(dsunc, 0);
1547
1548 /* Retrieve the device End System Identifier (MAC) */
1549
1550 #define htoi(x) (isdigit(x) ? x-'0' : toupper(x)-'A'+10)
1551 static int uea_getesi(struct uea_softc *sc, u_char * esi)
1552 {
1553 unsigned char mac_str[2 * ETH_ALEN + 1];
1554 int i;
1555 if (usb_string
1556 (sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str,
1557 sizeof(mac_str)) != 2 * ETH_ALEN)
1558 return 1;
1559
1560 for (i = 0; i < ETH_ALEN; i++)
1561 esi[i] = htoi(mac_str[2 * i]) * 16 + htoi(mac_str[2 * i + 1]);
1562
1563 return 0;
1564 }
1565
1566 /* ATM stuff */
1567 static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
1568 {
1569 struct uea_softc *sc = usbatm->driver_data;
1570
1571 return uea_getesi(sc, atm_dev->esi);
1572 }
1573
1574 static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
1575 {
1576 struct uea_softc *sc = usbatm->driver_data;
1577
1578 wait_event(sc->sync_q, IS_OPERATIONAL(sc));
1579
1580 return 0;
1581
1582 }
1583
1584 static int claim_interface(struct usb_device *usb_dev,
1585 struct usbatm_data *usbatm, int ifnum)
1586 {
1587 int ret;
1588 struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum);
1589
1590 if (!intf) {
1591 uea_err(usb_dev, "interface %d not found\n", ifnum);
1592 return -ENODEV;
1593 }
1594
1595 ret = usb_driver_claim_interface(&uea_driver, intf, usbatm);
1596 if (ret != 0)
1597 uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum,
1598 ret);
1599 return ret;
1600 }
1601
1602 static void create_fs_entries(struct uea_softc *sc, struct usb_interface *intf)
1603 {
1604 /* sysfs interface */
1605 device_create_file(&intf->dev, &dev_attr_stat_status);
1606 device_create_file(&intf->dev, &dev_attr_stat_mflags);
1607 device_create_file(&intf->dev, &dev_attr_stat_human_status);
1608 device_create_file(&intf->dev, &dev_attr_stat_delin);
1609 device_create_file(&intf->dev, &dev_attr_stat_vidcpe);
1610 device_create_file(&intf->dev, &dev_attr_stat_usrate);
1611 device_create_file(&intf->dev, &dev_attr_stat_dsrate);
1612 device_create_file(&intf->dev, &dev_attr_stat_usattenuation);
1613 device_create_file(&intf->dev, &dev_attr_stat_dsattenuation);
1614 device_create_file(&intf->dev, &dev_attr_stat_usmargin);
1615 device_create_file(&intf->dev, &dev_attr_stat_dsmargin);
1616 device_create_file(&intf->dev, &dev_attr_stat_txflow);
1617 device_create_file(&intf->dev, &dev_attr_stat_rxflow);
1618 device_create_file(&intf->dev, &dev_attr_stat_uscorr);
1619 device_create_file(&intf->dev, &dev_attr_stat_dscorr);
1620 device_create_file(&intf->dev, &dev_attr_stat_usunc);
1621 device_create_file(&intf->dev, &dev_attr_stat_dsunc);
1622 }
1623
1624 static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
1625 const struct usb_device_id *id)
1626 {
1627 struct usb_device *usb = interface_to_usbdev(intf);
1628 struct uea_softc *sc;
1629 int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
1630
1631 uea_enters(usb);
1632
1633 /* interface 0 is for firmware/monitoring */
1634 if (ifnum != UEA_INTR_IFACE_NO)
1635 return -ENODEV;
1636
1637 usbatm->flags = (sync_wait[modem_index] ? 0 : UDSL_SKIP_HEAVY_INIT);
1638
1639 /* interface 1 is for outbound traffic */
1640 ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO);
1641 if (ret < 0)
1642 return ret;
1643
1644 /* ADI930 has only 2 interfaces and inbound traffic
1645 * is on interface 1
1646 */
1647 if (UEA_CHIP_VERSION(id) != ADI930) {
1648 /* interface 2 is for inbound traffic */
1649 ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO);
1650 if (ret < 0)
1651 return ret;
1652 }
1653
1654 sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
1655 if (!sc) {
1656 uea_err(INS_TO_USBDEV(sc), "uea_init: not enough memory !\n");
1657 return -ENOMEM;
1658 }
1659
1660 sc->usb_dev = usb;
1661 usbatm->driver_data = sc;
1662 sc->usbatm = usbatm;
1663 sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0;
1664 sc->driver_info = id->driver_info;
1665
1666 /* ADI930 don't support iso */
1667 if (UEA_CHIP_VERSION(id) != ADI930 && use_iso[sc->modem_index]) {
1668 int i;
1669
1670 /* try set fastest alternate for inbound traffic interface */
1671 for (i = FASTEST_ISO_INTF; i > 0; i--)
1672 if (usb_set_interface(usb, UEA_DS_IFACE_NO, i) == 0)
1673 break;
1674
1675 if (i > 0) {
1676 uea_dbg(usb, "set alternate %d for 2 interface\n", i);
1677 uea_info(usb, "using iso mode\n");
1678 usbatm->flags |= UDSL_USE_ISOC | UDSL_IGNORE_EILSEQ;
1679 } else {
1680 uea_err(usb, "setting any alternate failed for "
1681 "2 interface, using bulk mode\n");
1682 }
1683 }
1684
1685 ret = uea_boot(sc);
1686 if (ret < 0) {
1687 kfree(sc);
1688 return ret;
1689 }
1690
1691 create_fs_entries(sc, intf);
1692 return 0;
1693 }
1694
1695 static void destroy_fs_entries(struct uea_softc *sc, struct usb_interface *intf)
1696 {
1697 /* sysfs interface */
1698 device_remove_file(&intf->dev, &dev_attr_stat_status);
1699 device_remove_file(&intf->dev, &dev_attr_stat_mflags);
1700 device_remove_file(&intf->dev, &dev_attr_stat_human_status);
1701 device_remove_file(&intf->dev, &dev_attr_stat_delin);
1702 device_remove_file(&intf->dev, &dev_attr_stat_vidcpe);
1703 device_remove_file(&intf->dev, &dev_attr_stat_usrate);
1704 device_remove_file(&intf->dev, &dev_attr_stat_dsrate);
1705 device_remove_file(&intf->dev, &dev_attr_stat_usattenuation);
1706 device_remove_file(&intf->dev, &dev_attr_stat_dsattenuation);
1707 device_remove_file(&intf->dev, &dev_attr_stat_usmargin);
1708 device_remove_file(&intf->dev, &dev_attr_stat_dsmargin);
1709 device_remove_file(&intf->dev, &dev_attr_stat_txflow);
1710 device_remove_file(&intf->dev, &dev_attr_stat_rxflow);
1711 device_remove_file(&intf->dev, &dev_attr_stat_uscorr);
1712 device_remove_file(&intf->dev, &dev_attr_stat_dscorr);
1713 device_remove_file(&intf->dev, &dev_attr_stat_usunc);
1714 device_remove_file(&intf->dev, &dev_attr_stat_dsunc);
1715 }
1716
1717 static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
1718 {
1719 struct uea_softc *sc = usbatm->driver_data;
1720
1721 destroy_fs_entries(sc, intf);
1722 uea_stop(sc);
1723 kfree(sc);
1724 }
1725
1726 static struct usbatm_driver uea_usbatm_driver = {
1727 .driver_name = "ueagle-atm",
1728 .bind = uea_bind,
1729 .atm_start = uea_atm_open,
1730 .unbind = uea_unbind,
1731 .heavy_init = uea_heavy,
1732 .bulk_in = UEA_BULK_DATA_PIPE,
1733 .bulk_out = UEA_BULK_DATA_PIPE,
1734 .isoc_in = UEA_ISO_DATA_PIPE,
1735 };
1736
1737 static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
1738 {
1739 struct usb_device *usb = interface_to_usbdev(intf);
1740
1741 uea_enters(usb);
1742 uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) : %s\n",
1743 le16_to_cpu(usb->descriptor.idVendor),
1744 le16_to_cpu(usb->descriptor.idProduct),
1745 chip_name[UEA_CHIP_VERSION(id)]);
1746
1747 usb_reset_device(usb);
1748
1749 if (UEA_IS_PREFIRM(id))
1750 return uea_load_firmware(usb, UEA_CHIP_VERSION(id));
1751
1752 return usbatm_usb_probe(intf, id, &uea_usbatm_driver);
1753 }
1754
1755 static void uea_disconnect(struct usb_interface *intf)
1756 {
1757 struct usb_device *usb = interface_to_usbdev(intf);
1758 int ifnum = intf->altsetting->desc.bInterfaceNumber;
1759 uea_enters(usb);
1760
1761 /* ADI930 has 2 interfaces and eagle 3 interfaces.
1762 * Pre-firmware device has one interface
1763 */
1764 if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) {
1765 mutex_lock(&uea_mutex);
1766 usbatm_usb_disconnect(intf);
1767 mutex_unlock(&uea_mutex);
1768 uea_info(usb, "ADSL device removed\n");
1769 }
1770
1771 uea_leaves(usb);
1772 }
1773
1774 /*
1775 * List of supported VID/PID
1776 */
1777 static const struct usb_device_id uea_ids[] = {
1778 {USB_DEVICE(ELSA_VID, ELSA_PID_PREFIRM), .driver_info = ADI930 | PREFIRM},
1779 {USB_DEVICE(ELSA_VID, ELSA_PID_PSTFIRM), .driver_info = ADI930 | PSTFIRM},
1780 {USB_DEVICE(EAGLE_VID, EAGLE_I_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1781 {USB_DEVICE(EAGLE_VID, EAGLE_I_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1782 {USB_DEVICE(EAGLE_VID, EAGLE_II_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
1783 {USB_DEVICE(EAGLE_VID, EAGLE_II_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
1784 {USB_DEVICE(EAGLE_VID, EAGLE_IIC_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
1785 {USB_DEVICE(EAGLE_VID, EAGLE_IIC_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
1786 {USB_DEVICE(EAGLE_VID, EAGLE_III_PID_PREFIRM), .driver_info = EAGLE_III | PREFIRM},
1787 {USB_DEVICE(EAGLE_VID, EAGLE_III_PID_PSTFIRM), .driver_info = EAGLE_III | PSTFIRM},
1788 {USB_DEVICE(USR_VID, MILLER_A_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1789 {USB_DEVICE(USR_VID, MILLER_A_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1790 {USB_DEVICE(USR_VID, MILLER_B_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1791 {USB_DEVICE(USR_VID, MILLER_B_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1792 {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM},
1793 {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM},
1794 {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM},
1795 {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM},
1796 {}
1797 };
1798
1799 /*
1800 * USB driver descriptor
1801 */
1802 static struct usb_driver uea_driver = {
1803 .name = "ueagle-atm",
1804 .id_table = uea_ids,
1805 .probe = uea_probe,
1806 .disconnect = uea_disconnect,
1807 };
1808
1809 MODULE_DEVICE_TABLE(usb, uea_ids);
1810
1811 /**
1812 * uea_init - Initialize the module.
1813 * Register to USB subsystem
1814 */
1815 static int __init uea_init(void)
1816 {
1817 printk(KERN_INFO "[ueagle-atm] driver " EAGLEUSBVERSION " loaded\n");
1818
1819 usb_register(&uea_driver);
1820
1821 return 0;
1822 }
1823
1824 module_init(uea_init);
1825
1826 /**
1827 * uea_exit - Destroy module
1828 * Deregister with USB subsystem
1829 */
1830 static void __exit uea_exit(void)
1831 {
1832 /*
1833 * This calls automatically the uea_disconnect method if necessary:
1834 */
1835 usb_deregister(&uea_driver);
1836
1837 printk(KERN_INFO "[ueagle-atm] driver unloaded\n");
1838 }
1839
1840 module_exit(uea_exit);
1841
1842 MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka");
1843 MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver");
1844 MODULE_LICENSE("Dual BSD/GPL");
Linux kernel - Deliverables
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