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Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik...
[GitHub/mt8127/android_kernel_alcatel_ttab.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 1.3"
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(3000)
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 #define GETSA1(a) ((a >> 8) & 0xff)
318 #define GETSA2(a) (a & 0xff)
319 #define GETSA3(a) ((a >> 24) & 0xff)
320 #define GETSA4(a) ((a >> 16) & 0xff)
321
322 #define SA_CNTL MAKESA('C', 'N', 'T', 'L')
323 #define SA_DIAG MAKESA('D', 'I', 'A', 'G')
324 #define SA_INFO MAKESA('I', 'N', 'F', 'O')
325 #define SA_OPTN MAKESA('O', 'P', 'T', 'N')
326 #define SA_RATE MAKESA('R', 'A', 'T', 'E')
327 #define SA_STAT MAKESA('S', 'T', 'A', 'T')
328 __le16 wOffsetAddress;
329 __le32 dwData;
330 } __attribute__ ((packed));
331 #define CMV_SIZE 16
332
333 /* structure representing swap information */
334 struct swap_info {
335 __u8 bSwapPageNo;
336 __u8 bOvl; /* overlay */
337 } __attribute__ ((packed));
338
339 /* structure representing interrupt data */
340 struct intr_pkt {
341 __u8 bType;
342 __u8 bNotification;
343 __le16 wValue;
344 __le16 wIndex;
345 __le16 wLength;
346 __le16 wInterrupt;
347 #define INT_LOADSWAPPAGE 0x0001
348 #define INT_INCOMINGCMV 0x0002
349 union {
350 struct {
351 struct swap_info swapinfo;
352 __le16 wDataSize;
353 } __attribute__ ((packed)) s1;
354
355 struct {
356 struct cmv cmv;
357 __le16 wDataSize;
358 } __attribute__ ((packed)) s2;
359 } __attribute__ ((packed)) u;
360 #define bSwapPageNo u.s1.swapinfo.bSwapPageNo
361 #define bOvl u.s1.swapinfo.bOvl
362 } __attribute__ ((packed));
363 #define INTR_PKT_SIZE 28
364
365 static struct usb_driver uea_driver;
366 static DEFINE_MUTEX(uea_mutex);
367 static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III"};
368
369 static int modem_index;
370 static unsigned int debug;
371 static int use_iso[NB_MODEM] = {[0 ... (NB_MODEM - 1)] = 1};
372 static int sync_wait[NB_MODEM];
373 static char *cmv_file[NB_MODEM];
374
375 module_param(debug, uint, 0644);
376 MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)");
377 module_param_array(use_iso, bool, NULL, 0644);
378 MODULE_PARM_DESC(use_iso, "use isochronous usb pipe for incoming traffic");
379 module_param_array(sync_wait, bool, NULL, 0644);
380 MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM");
381 module_param_array(cmv_file, charp, NULL, 0644);
382 MODULE_PARM_DESC(cmv_file,
383 "file name with configuration and management variables");
384
385 #define UPDATE_ATM_STAT(type, val) \
386 do { \
387 if (sc->usbatm->atm_dev) \
388 sc->usbatm->atm_dev->type = val; \
389 } while (0)
390
391 /* Firmware loading */
392 #define LOAD_INTERNAL 0xA0
393 #define F8051_USBCS 0x7f92
394
395 /**
396 * uea_send_modem_cmd - Send a command for pre-firmware devices.
397 */
398 static int uea_send_modem_cmd(struct usb_device *usb,
399 u16 addr, u16 size, u8 * buff)
400 {
401 int ret = -ENOMEM;
402 u8 *xfer_buff;
403
404 xfer_buff = kmalloc(size, GFP_KERNEL);
405 if (xfer_buff) {
406 memcpy(xfer_buff, buff, size);
407 ret = usb_control_msg(usb,
408 usb_sndctrlpipe(usb, 0),
409 LOAD_INTERNAL,
410 USB_DIR_OUT | USB_TYPE_VENDOR |
411 USB_RECIP_DEVICE, addr, 0, xfer_buff,
412 size, CTRL_TIMEOUT);
413 kfree(xfer_buff);
414 }
415
416 if (ret < 0)
417 return ret;
418
419 return (ret == size) ? 0 : -EIO;
420 }
421
422 static void uea_upload_pre_firmware(const struct firmware *fw_entry, void *context)
423 {
424 struct usb_device *usb = context;
425 u8 *pfw, value;
426 u32 crc = 0;
427 int ret, size;
428
429 uea_enters(usb);
430 if (!fw_entry) {
431 uea_err(usb, "firmware is not available\n");
432 goto err;
433 }
434
435 pfw = fw_entry->data;
436 size = fw_entry->size;
437 if (size < 4)
438 goto err_fw_corrupted;
439
440 crc = FW_GET_LONG(pfw);
441 pfw += 4;
442 size -= 4;
443 if (crc32_be(0, pfw, size) != crc)
444 goto err_fw_corrupted;
445
446 /*
447 * Start to upload formware : send reset
448 */
449 value = 1;
450 ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value);
451
452 if (ret < 0) {
453 uea_err(usb, "modem reset failed with error %d\n", ret);
454 goto err;
455 }
456
457 while (size > 3) {
458 u8 len = FW_GET_BYTE(pfw);
459 u16 add = FW_GET_WORD(pfw + 1);
460
461 size -= len + 3;
462 if (size < 0)
463 goto err_fw_corrupted;
464
465 ret = uea_send_modem_cmd(usb, add, len, pfw + 3);
466 if (ret < 0) {
467 uea_err(usb, "uploading firmware data failed "
468 "with error %d\n", ret);
469 goto err;
470 }
471 pfw += len + 3;
472 }
473
474 if (size != 0)
475 goto err_fw_corrupted;
476
477 /*
478 * Tell the modem we finish : de-assert reset
479 */
480 value = 0;
481 ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value);
482 if (ret < 0)
483 uea_err(usb, "modem de-assert failed with error %d\n", ret);
484 else
485 uea_info(usb, "firmware uploaded\n");
486
487 uea_leaves(usb);
488 return;
489
490 err_fw_corrupted:
491 uea_err(usb, "firmware is corrupted\n");
492 err:
493 uea_leaves(usb);
494 }
495
496 /**
497 * uea_load_firmware - Load usb firmware for pre-firmware devices.
498 */
499 static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
500 {
501 int ret;
502 char *fw_name = FW_DIR "eagle.fw";
503
504 uea_enters(usb);
505 uea_info(usb, "pre-firmware device, uploading firmware\n");
506
507 switch (ver) {
508 case ADI930:
509 fw_name = FW_DIR "adi930.fw";
510 break;
511 case EAGLE_I:
512 fw_name = FW_DIR "eagleI.fw";
513 break;
514 case EAGLE_II:
515 fw_name = FW_DIR "eagleII.fw";
516 break;
517 case EAGLE_III:
518 fw_name = FW_DIR "eagleIII.fw";
519 break;
520 }
521
522 ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev, usb, uea_upload_pre_firmware);
523 if (ret)
524 uea_err(usb, "firmware %s is not available\n", fw_name);
525 else
526 uea_info(usb, "loading firmware %s\n", fw_name);
527
528 uea_leaves(usb);
529 return ret;
530 }
531
532 /* modem management : dsp firmware, send/read CMV, monitoring statistic
533 */
534
535 /*
536 * Make sure that the DSP code provided is safe to use.
537 */
538 static int check_dsp(u8 *dsp, unsigned int len)
539 {
540 u8 pagecount, blockcount;
541 u16 blocksize;
542 u32 pageoffset;
543 unsigned int i, j, p, pp;
544
545 pagecount = FW_GET_BYTE(dsp);
546 p = 1;
547
548 /* enough space for page offsets? */
549 if (p + 4 * pagecount > len)
550 return 1;
551
552 for (i = 0; i < pagecount; i++) {
553
554 pageoffset = FW_GET_LONG(dsp + p);
555 p += 4;
556
557 if (pageoffset == 0)
558 continue;
559
560 /* enough space for blockcount? */
561 if (pageoffset >= len)
562 return 1;
563
564 pp = pageoffset;
565 blockcount = FW_GET_BYTE(dsp + pp);
566 pp += 1;
567
568 for (j = 0; j < blockcount; j++) {
569
570 /* enough space for block header? */
571 if (pp + 4 > len)
572 return 1;
573
574 pp += 2; /* skip blockaddr */
575 blocksize = FW_GET_WORD(dsp + pp);
576 pp += 2;
577
578 /* enough space for block data? */
579 if (pp + blocksize > len)
580 return 1;
581
582 pp += blocksize;
583 }
584 }
585
586 return 0;
587 }
588
589 /*
590 * send data to the idma pipe
591 * */
592 static int uea_idma_write(struct uea_softc *sc, void *data, u32 size)
593 {
594 int ret = -ENOMEM;
595 u8 *xfer_buff;
596 int bytes_read;
597
598 xfer_buff = kmalloc(size, GFP_KERNEL);
599 if (!xfer_buff) {
600 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
601 return ret;
602 }
603
604 memcpy(xfer_buff, data, size);
605
606 ret = usb_bulk_msg(sc->usb_dev,
607 usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
608 xfer_buff, size, &bytes_read, BULK_TIMEOUT);
609
610 kfree(xfer_buff);
611 if (ret < 0)
612 return ret;
613 if (size != bytes_read) {
614 uea_err(INS_TO_USBDEV(sc), "size != bytes_read %d %d\n", size,
615 bytes_read);
616 return -EIO;
617 }
618
619 return 0;
620 }
621
622 static int request_dsp(struct uea_softc *sc)
623 {
624 int ret;
625 char *dsp_name;
626
627 if (UEA_CHIP_VERSION(sc) == ADI930) {
628 if (IS_ISDN(sc))
629 dsp_name = FW_DIR "DSP9i.bin";
630 else
631 dsp_name = FW_DIR "DSP9p.bin";
632 } else {
633 if (IS_ISDN(sc))
634 dsp_name = FW_DIR "DSPei.bin";
635 else
636 dsp_name = FW_DIR "DSPep.bin";
637 }
638
639 ret = request_firmware(&sc->dsp_firm, dsp_name, &sc->usb_dev->dev);
640 if (ret < 0) {
641 uea_err(INS_TO_USBDEV(sc),
642 "requesting firmware %s failed with error %d\n",
643 dsp_name, ret);
644 return ret;
645 }
646
647 if (check_dsp(sc->dsp_firm->data, sc->dsp_firm->size)) {
648 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
649 dsp_name);
650 release_firmware(sc->dsp_firm);
651 sc->dsp_firm = NULL;
652 return -EILSEQ;
653 }
654
655 return 0;
656 }
657
658 /*
659 * The uea_load_page() function must be called within a process context
660 */
661 static void uea_load_page(void *xsc)
662 {
663 struct uea_softc *sc = xsc;
664 u16 pageno = sc->pageno;
665 u16 ovl = sc->ovl;
666 struct block_info bi;
667
668 u8 *p;
669 u8 pagecount, blockcount;
670 u16 blockaddr, blocksize;
671 u32 pageoffset;
672 int i;
673
674 /* reload firmware when reboot start and it's loaded already */
675 if (ovl == 0 && pageno == 0 && sc->dsp_firm) {
676 release_firmware(sc->dsp_firm);
677 sc->dsp_firm = NULL;
678 }
679
680 if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
681 return;
682
683 p = sc->dsp_firm->data;
684 pagecount = FW_GET_BYTE(p);
685 p += 1;
686
687 if (pageno >= pagecount)
688 goto bad1;
689
690 p += 4 * pageno;
691 pageoffset = FW_GET_LONG(p);
692
693 if (pageoffset == 0)
694 goto bad1;
695
696 p = sc->dsp_firm->data + pageoffset;
697 blockcount = FW_GET_BYTE(p);
698 p += 1;
699
700 uea_dbg(INS_TO_USBDEV(sc),
701 "sending %u blocks for DSP page %u\n", blockcount, pageno);
702
703 bi.wHdr = cpu_to_le16(UEA_BIHDR);
704 bi.wOvl = cpu_to_le16(ovl);
705 bi.wOvlOffset = cpu_to_le16(ovl | 0x8000);
706
707 for (i = 0; i < blockcount; i++) {
708 blockaddr = FW_GET_WORD(p);
709 p += 2;
710
711 blocksize = FW_GET_WORD(p);
712 p += 2;
713
714 bi.wSize = cpu_to_le16(blocksize);
715 bi.wAddress = cpu_to_le16(blockaddr);
716 bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0);
717
718 /* send block info through the IDMA pipe */
719 if (uea_idma_write(sc, &bi, BLOCK_INFO_SIZE))
720 goto bad2;
721
722 /* send block data through the IDMA pipe */
723 if (uea_idma_write(sc, p, blocksize))
724 goto bad2;
725
726 p += blocksize;
727 }
728
729 return;
730
731 bad2:
732 uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i);
733 return;
734 bad1:
735 uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n", pageno);
736 }
737
738 static inline void wake_up_cmv_ack(struct uea_softc *sc)
739 {
740 BUG_ON(sc->cmv_ack);
741 sc->cmv_ack = 1;
742 wake_up(&sc->cmv_ack_wait);
743 }
744
745 static inline int wait_cmv_ack(struct uea_softc *sc)
746 {
747 int ret = wait_event_timeout(sc->cmv_ack_wait,
748 sc->cmv_ack, ACK_TIMEOUT);
749 sc->cmv_ack = 0;
750
751 uea_dbg(INS_TO_USBDEV(sc), "wait_event_timeout : %d ms\n",
752 jiffies_to_msecs(ret));
753
754 if (ret < 0)
755 return ret;
756
757 return (ret == 0) ? -ETIMEDOUT : 0;
758 }
759
760 #define UCDC_SEND_ENCAPSULATED_COMMAND 0x00
761
762 static int uea_request(struct uea_softc *sc,
763 u16 value, u16 index, u16 size, void *data)
764 {
765 u8 *xfer_buff;
766 int ret = -ENOMEM;
767
768 xfer_buff = kmalloc(size, GFP_KERNEL);
769 if (!xfer_buff) {
770 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
771 return ret;
772 }
773 memcpy(xfer_buff, data, size);
774
775 ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
776 UCDC_SEND_ENCAPSULATED_COMMAND,
777 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
778 value, index, xfer_buff, size, CTRL_TIMEOUT);
779
780 kfree(xfer_buff);
781 if (ret < 0) {
782 uea_err(INS_TO_USBDEV(sc), "usb_control_msg error %d\n", ret);
783 return ret;
784 }
785
786 if (ret != size) {
787 uea_err(INS_TO_USBDEV(sc),
788 "usb_control_msg send only %d bytes (instead of %d)\n",
789 ret, size);
790 return -EIO;
791 }
792
793 return 0;
794 }
795
796 static int uea_cmv(struct uea_softc *sc,
797 u8 function, u32 address, u16 offset, u32 data)
798 {
799 struct cmv cmv;
800 int ret;
801
802 uea_enters(INS_TO_USBDEV(sc));
803 uea_vdbg(INS_TO_USBDEV(sc), "Function : %d-%d, Address : %c%c%c%c, "
804 "offset : 0x%04x, data : 0x%08x\n",
805 FUNCTION_TYPE(function), FUNCTION_SUBTYPE(function),
806 GETSA1(address), GETSA2(address), GETSA3(address),
807 GETSA4(address), offset, data);
808 /* we send a request, but we expect a reply */
809 sc->cmv_function = function | 0x2;
810 sc->cmv_idx++;
811 sc->cmv_address = address;
812 sc->cmv_offset = offset;
813
814 cmv.wPreamble = cpu_to_le16(PREAMBLE);
815 cmv.bDirection = HOSTTOMODEM;
816 cmv.bFunction = function;
817 cmv.wIndex = cpu_to_le16(sc->cmv_idx);
818 put_unaligned(cpu_to_le32(address), &cmv.dwSymbolicAddress);
819 cmv.wOffsetAddress = cpu_to_le16(offset);
820 put_unaligned(cpu_to_le32(data >> 16 | data << 16), &cmv.dwData);
821
822 ret = uea_request(sc, UEA_SET_BLOCK, UEA_MPTX_START, CMV_SIZE, &cmv);
823 if (ret < 0)
824 return ret;
825 ret = wait_cmv_ack(sc);
826 uea_leaves(INS_TO_USBDEV(sc));
827 return ret;
828 }
829
830 static inline int uea_read_cmv(struct uea_softc *sc,
831 u32 address, u16 offset, u32 *data)
832 {
833 int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTREAD),
834 address, offset, 0);
835 if (ret < 0)
836 uea_err(INS_TO_USBDEV(sc),
837 "reading cmv failed with error %d\n", ret);
838 else
839 *data = sc->data;
840
841 return ret;
842 }
843
844 static inline int uea_write_cmv(struct uea_softc *sc,
845 u32 address, u16 offset, u32 data)
846 {
847 int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTWRITE),
848 address, offset, data);
849 if (ret < 0)
850 uea_err(INS_TO_USBDEV(sc),
851 "writing cmv failed with error %d\n", ret);
852
853 return ret;
854 }
855
856 /*
857 * Monitor the modem and update the stat
858 * return 0 if everything is ok
859 * return < 0 if an error occurs (-EAGAIN reboot needed)
860 */
861 static int uea_stat(struct uea_softc *sc)
862 {
863 u32 data;
864 int ret;
865
866 uea_enters(INS_TO_USBDEV(sc));
867 data = sc->stats.phy.state;
868
869 ret = uea_read_cmv(sc, SA_STAT, 0, &sc->stats.phy.state);
870 if (ret < 0)
871 return ret;
872
873 switch (GET_STATUS(sc->stats.phy.state)) {
874 case 0: /* not yet synchronized */
875 uea_dbg(INS_TO_USBDEV(sc),
876 "modem not yet synchronized\n");
877 return 0;
878
879 case 1: /* initialization */
880 uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
881 return 0;
882
883 case 2: /* operational */
884 uea_vdbg(INS_TO_USBDEV(sc), "modem operational\n");
885 break;
886
887 case 3: /* fail ... */
888 uea_info(INS_TO_USBDEV(sc), "modem synchronization failed\n");
889 return -EAGAIN;
890
891 case 4 ... 6: /* test state */
892 uea_warn(INS_TO_USBDEV(sc),
893 "modem in test mode - not supported\n");
894 return -EAGAIN;
895
896 case 7: /* fast-retain ... */
897 uea_info(INS_TO_USBDEV(sc), "modem in fast-retain mode\n");
898 return 0;
899 default:
900 uea_err(INS_TO_USBDEV(sc), "modem invalid SW mode %d\n",
901 GET_STATUS(sc->stats.phy.state));
902 return -EAGAIN;
903 }
904
905 if (GET_STATUS(data) != 2) {
906 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
907 uea_info(INS_TO_USBDEV(sc), "modem operational\n");
908
909 /* release the dsp firmware as it is not needed until
910 * the next failure
911 */
912 if (sc->dsp_firm) {
913 release_firmware(sc->dsp_firm);
914 sc->dsp_firm = NULL;
915 }
916
917 ret = uea_read_cmv(sc, SA_INFO, 10, &sc->stats.phy.firmid);
918 if (ret < 0)
919 return ret;
920 uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
921 sc->stats.phy.firmid);
922 }
923
924 /* always update it as atm layer could not be init when we switch to
925 * operational state
926 */
927 UPDATE_ATM_STAT(signal, ATM_PHY_SIG_FOUND);
928
929 /* wake up processes waiting for synchronization */
930 wake_up(&sc->sync_q);
931
932 ret = uea_read_cmv(sc, SA_DIAG, 2, &sc->stats.phy.flags);
933 if (ret < 0)
934 return ret;
935 sc->stats.phy.mflags |= sc->stats.phy.flags;
936
937 /* in case of a flags ( for example delineation LOSS (& 0x10)),
938 * we check the status again in order to detect the failure earlier
939 */
940 if (sc->stats.phy.flags) {
941 uea_dbg(INS_TO_USBDEV(sc), "Stat flag = 0x%x\n",
942 sc->stats.phy.flags);
943 return 0;
944 }
945
946 ret = uea_read_cmv(sc, SA_RATE, 0, &data);
947 if (ret < 0)
948 return ret;
949
950 /* in bulk mode the modem have problem with high rate
951 * changing internal timing could improve things, but the
952 * value is misterious.
953 * ADI930 don't support it (-EPIPE error).
954 */
955 if (UEA_CHIP_VERSION(sc) != ADI930
956 && !use_iso[sc->modem_index]
957 && sc->stats.phy.dsrate != (data >> 16) * 32) {
958 /* Original timming from ADI(used in windows driver)
959 * 0x20ffff>>16 * 32 = 32 * 32 = 1Mbits
960 */
961 u16 timeout = (data <= 0x20ffff) ? 0 : 1;
962 ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
963 uea_info(INS_TO_USBDEV(sc),
964 "setting new timeout %d%s\n", timeout,
965 ret < 0?" failed":"");
966 }
967 sc->stats.phy.dsrate = (data >> 16) * 32;
968 sc->stats.phy.usrate = (data & 0xffff) * 32;
969 UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
970
971 ret = uea_read_cmv(sc, SA_DIAG, 23, &data);
972 if (ret < 0)
973 return ret;
974 sc->stats.phy.dsattenuation = (data & 0xff) / 2;
975
976 ret = uea_read_cmv(sc, SA_DIAG, 47, &data);
977 if (ret < 0)
978 return ret;
979 sc->stats.phy.usattenuation = (data & 0xff) / 2;
980
981 ret = uea_read_cmv(sc, SA_DIAG, 25, &sc->stats.phy.dsmargin);
982 if (ret < 0)
983 return ret;
984
985 ret = uea_read_cmv(sc, SA_DIAG, 49, &sc->stats.phy.usmargin);
986 if (ret < 0)
987 return ret;
988
989 ret = uea_read_cmv(sc, SA_DIAG, 51, &sc->stats.phy.rxflow);
990 if (ret < 0)
991 return ret;
992
993 ret = uea_read_cmv(sc, SA_DIAG, 52, &sc->stats.phy.txflow);
994 if (ret < 0)
995 return ret;
996
997 ret = uea_read_cmv(sc, SA_DIAG, 54, &sc->stats.phy.dsunc);
998 if (ret < 0)
999 return ret;
1000
1001 /* only for atu-c */
1002 ret = uea_read_cmv(sc, SA_DIAG, 58, &sc->stats.phy.usunc);
1003 if (ret < 0)
1004 return ret;
1005
1006 ret = uea_read_cmv(sc, SA_DIAG, 53, &sc->stats.phy.dscorr);
1007 if (ret < 0)
1008 return ret;
1009
1010 /* only for atu-c */
1011 ret = uea_read_cmv(sc, SA_DIAG, 57, &sc->stats.phy.uscorr);
1012 if (ret < 0)
1013 return ret;
1014
1015 ret = uea_read_cmv(sc, SA_INFO, 8, &sc->stats.phy.vidco);
1016 if (ret < 0)
1017 return ret;
1018
1019 ret = uea_read_cmv(sc, SA_INFO, 13, &sc->stats.phy.vidcpe);
1020 if (ret < 0)
1021 return ret;
1022
1023 return 0;
1024 }
1025
1026 static int request_cmvs(struct uea_softc *sc,
1027 struct uea_cmvs **cmvs, const struct firmware **fw)
1028 {
1029 int ret, size;
1030 u8 *data;
1031 char *file;
1032 char cmv_name[FIRMWARE_NAME_MAX]; /* 30 bytes stack variable */
1033
1034 if (cmv_file[sc->modem_index] == NULL) {
1035 if (UEA_CHIP_VERSION(sc) == ADI930)
1036 file = (IS_ISDN(sc)) ? "CMV9i.bin" : "CMV9p.bin";
1037 else
1038 file = (IS_ISDN(sc)) ? "CMVei.bin" : "CMVep.bin";
1039 } else
1040 file = cmv_file[sc->modem_index];
1041
1042 strcpy(cmv_name, FW_DIR);
1043 strlcat(cmv_name, file, sizeof(cmv_name));
1044
1045 ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
1046 if (ret < 0) {
1047 uea_err(INS_TO_USBDEV(sc),
1048 "requesting firmware %s failed with error %d\n",
1049 cmv_name, ret);
1050 return ret;
1051 }
1052
1053 data = (u8 *) (*fw)->data;
1054 size = *data * sizeof(struct uea_cmvs) + 1;
1055 if (size != (*fw)->size) {
1056 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1057 cmv_name);
1058 release_firmware(*fw);
1059 return -EILSEQ;
1060 }
1061
1062 *cmvs = (struct uea_cmvs *)(data + 1);
1063 return *data;
1064 }
1065
1066 /* Start boot post firmware modem:
1067 * - send reset commands through usb control pipe
1068 * - start workqueue for DSP loading
1069 * - send CMV options to modem
1070 */
1071
1072 static int uea_start_reset(struct uea_softc *sc)
1073 {
1074 u16 zero = 0; /* ;-) */
1075 int i, len, ret;
1076 struct uea_cmvs *cmvs;
1077 const struct firmware *cmvs_fw;
1078
1079 uea_enters(INS_TO_USBDEV(sc));
1080 uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");
1081
1082 /* mask interrupt */
1083 sc->booting = 1;
1084 /* We need to set this here because, a ack timeout could have occured,
1085 * but before we start the reboot, the ack occurs and set this to 1.
1086 * So we will failed to wait Ready CMV.
1087 */
1088 sc->cmv_ack = 0;
1089 UPDATE_ATM_STAT(signal, ATM_PHY_SIG_LOST);
1090
1091 /* reset statistics */
1092 memset(&sc->stats, 0, sizeof(struct uea_stats));
1093
1094 /* tell the modem that we want to boot in IDMA mode */
1095 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1096 uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL);
1097
1098 /* enter reset mode */
1099 uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL);
1100
1101 /* original driver use 200ms, but windows driver use 100ms */
1102 msleep(100);
1103
1104 /* leave reset mode */
1105 uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);
1106
1107 /* clear tx and rx mailboxes */
1108 uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
1109 uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
1110 uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
1111
1112 msleep(1000);
1113 sc->cmv_function = MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY);
1114 /* demask interrupt */
1115 sc->booting = 0;
1116
1117 /* start loading DSP */
1118 sc->pageno = 0;
1119 sc->ovl = 0;
1120 schedule_work(&sc->task);
1121
1122 /* wait for modem ready CMV */
1123 ret = wait_cmv_ack(sc);
1124 if (ret < 0)
1125 return ret;
1126
1127 uea_vdbg(INS_TO_USBDEV(sc), "Ready CMV received\n");
1128
1129 /* Enter in R-IDLE (cmv) until instructed otherwise */
1130 ret = uea_write_cmv(sc, SA_CNTL, 0, 1);
1131 if (ret < 0)
1132 return ret;
1133
1134 /* get options */
1135 ret = len = request_cmvs(sc, &cmvs, &cmvs_fw);
1136 if (ret < 0)
1137 return ret;
1138
1139 /* send options */
1140 for (i = 0; i < len; i++) {
1141 ret = uea_write_cmv(sc, FW_GET_LONG(&cmvs[i].address),
1142 FW_GET_WORD(&cmvs[i].offset),
1143 FW_GET_LONG(&cmvs[i].data));
1144 if (ret < 0)
1145 goto out;
1146 }
1147 /* Enter in R-ACT-REQ */
1148 ret = uea_write_cmv(sc, SA_CNTL, 0, 2);
1149 uea_vdbg(INS_TO_USBDEV(sc), "Entering in R-ACT-REQ state\n");
1150 out:
1151 release_firmware(cmvs_fw);
1152 sc->reset = 0;
1153 uea_leaves(INS_TO_USBDEV(sc));
1154 return ret;
1155 }
1156
1157 /*
1158 * In case of an error wait 1s before rebooting the modem
1159 * if the modem don't request reboot (-EAGAIN).
1160 * Monitor the modem every 1s.
1161 */
1162
1163 static int uea_kthread(void *data)
1164 {
1165 struct uea_softc *sc = data;
1166 int ret = -EAGAIN;
1167
1168 uea_enters(INS_TO_USBDEV(sc));
1169 while (!kthread_should_stop()) {
1170 if (ret < 0 || sc->reset)
1171 ret = uea_start_reset(sc);
1172 if (!ret)
1173 ret = uea_stat(sc);
1174 if (ret != -EAGAIN)
1175 msleep(1000);
1176 }
1177 uea_leaves(INS_TO_USBDEV(sc));
1178 return ret;
1179 }
1180
1181 /* Load second usb firmware for ADI930 chip */
1182 static int load_XILINX_firmware(struct uea_softc *sc)
1183 {
1184 const struct firmware *fw_entry;
1185 int ret, size, u, ln;
1186 u8 *pfw, value;
1187 char *fw_name = FW_DIR "930-fpga.bin";
1188
1189 uea_enters(INS_TO_USBDEV(sc));
1190
1191 ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev);
1192 if (ret) {
1193 uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n",
1194 fw_name);
1195 goto err0;
1196 }
1197
1198 pfw = fw_entry->data;
1199 size = fw_entry->size;
1200 if (size != 0x577B) {
1201 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1202 fw_name);
1203 ret = -EILSEQ;
1204 goto err1;
1205 }
1206 for (u = 0; u < size; u += ln) {
1207 ln = min(size - u, 64);
1208 ret = uea_request(sc, 0xe, 0, ln, pfw + u);
1209 if (ret < 0) {
1210 uea_err(INS_TO_USBDEV(sc),
1211 "elsa download data failed (%d)\n", ret);
1212 goto err1;
1213 }
1214 }
1215
1216 /* finish to send the fpga */
1217 ret = uea_request(sc, 0xe, 1, 0, NULL);
1218 if (ret < 0) {
1219 uea_err(INS_TO_USBDEV(sc),
1220 "elsa download data failed (%d)\n", ret);
1221 goto err1;
1222 }
1223
1224 /* Tell the modem we finish : de-assert reset */
1225 value = 0;
1226 ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
1227 if (ret < 0)
1228 uea_err(sc->usb_dev, "elsa de-assert failed with error %d\n", ret);
1229
1230
1231 err1:
1232 release_firmware(fw_entry);
1233 err0:
1234 uea_leaves(INS_TO_USBDEV(sc));
1235 return ret;
1236 }
1237
1238 /* The modem send us an ack. First with check if it right */
1239 static void uea_dispatch_cmv(struct uea_softc *sc, struct cmv* cmv)
1240 {
1241 uea_enters(INS_TO_USBDEV(sc));
1242 if (le16_to_cpu(cmv->wPreamble) != PREAMBLE)
1243 goto bad1;
1244
1245 if (cmv->bDirection != MODEMTOHOST)
1246 goto bad1;
1247
1248 /* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
1249 * the first MEMACESS cmv. Ignore it...
1250 */
1251 if (cmv->bFunction != sc->cmv_function) {
1252 if (UEA_CHIP_VERSION(sc) == ADI930
1253 && cmv->bFunction == MAKEFUNCTION(2, 2)) {
1254 cmv->wIndex = cpu_to_le16(sc->cmv_idx);
1255 put_unaligned(cpu_to_le32(sc->cmv_address), &cmv->dwSymbolicAddress);
1256 cmv->wOffsetAddress = cpu_to_le16(sc->cmv_offset);
1257 }
1258 else
1259 goto bad2;
1260 }
1261
1262 if (cmv->bFunction == MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY)) {
1263 wake_up_cmv_ack(sc);
1264 uea_leaves(INS_TO_USBDEV(sc));
1265 return;
1266 }
1267
1268 /* in case of MEMACCESS */
1269 if (le16_to_cpu(cmv->wIndex) != sc->cmv_idx ||
1270 le32_to_cpu(get_unaligned(&cmv->dwSymbolicAddress)) !=
1271 sc->cmv_address
1272 || le16_to_cpu(cmv->wOffsetAddress) != sc->cmv_offset)
1273 goto bad2;
1274
1275 sc->data = le32_to_cpu(get_unaligned(&cmv->dwData));
1276 sc->data = sc->data << 16 | sc->data >> 16;
1277
1278 wake_up_cmv_ack(sc);
1279 uea_leaves(INS_TO_USBDEV(sc));
1280 return;
1281
1282 bad2:
1283 uea_err(INS_TO_USBDEV(sc), "unexpected cmv received,"
1284 "Function : %d, Subfunction : %d\n",
1285 FUNCTION_TYPE(cmv->bFunction),
1286 FUNCTION_SUBTYPE(cmv->bFunction));
1287 uea_leaves(INS_TO_USBDEV(sc));
1288 return;
1289
1290 bad1:
1291 uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
1292 "wPreamble %d, bDirection %d\n",
1293 le16_to_cpu(cmv->wPreamble), cmv->bDirection);
1294 uea_leaves(INS_TO_USBDEV(sc));
1295 }
1296
1297 /*
1298 * interrupt handler
1299 */
1300 static void uea_intr(struct urb *urb, struct pt_regs *regs)
1301 {
1302 struct uea_softc *sc = urb->context;
1303 struct intr_pkt *intr = urb->transfer_buffer;
1304 uea_enters(INS_TO_USBDEV(sc));
1305
1306 if (unlikely(urb->status < 0)) {
1307 uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n",
1308 urb->status);
1309 return;
1310 }
1311
1312 /* device-to-host interrupt */
1313 if (intr->bType != 0x08 || sc->booting) {
1314 uea_err(INS_TO_USBDEV(sc), "wrong interrupt\n");
1315 goto resubmit;
1316 }
1317
1318 switch (le16_to_cpu(intr->wInterrupt)) {
1319 case INT_LOADSWAPPAGE:
1320 sc->pageno = intr->bSwapPageNo;
1321 sc->ovl = intr->bOvl >> 4 | intr->bOvl << 4;
1322 schedule_work(&sc->task);
1323 break;
1324
1325 case INT_INCOMINGCMV:
1326 uea_dispatch_cmv(sc, &intr->u.s2.cmv);
1327 break;
1328
1329 default:
1330 uea_err(INS_TO_USBDEV(sc), "unknown interrupt %u\n",
1331 le16_to_cpu(intr->wInterrupt));
1332 }
1333
1334 resubmit:
1335 usb_submit_urb(sc->urb_int, GFP_ATOMIC);
1336 }
1337
1338 /*
1339 * Start the modem : init the data and start kernel thread
1340 */
1341 static int uea_boot(struct uea_softc *sc)
1342 {
1343 int ret;
1344 struct intr_pkt *intr;
1345
1346 uea_enters(INS_TO_USBDEV(sc));
1347
1348 INIT_WORK(&sc->task, uea_load_page, sc);
1349 init_waitqueue_head(&sc->sync_q);
1350 init_waitqueue_head(&sc->cmv_ack_wait);
1351
1352 if (UEA_CHIP_VERSION(sc) == ADI930)
1353 load_XILINX_firmware(sc);
1354
1355 intr = kmalloc(INTR_PKT_SIZE, GFP_KERNEL);
1356 if (!intr) {
1357 uea_err(INS_TO_USBDEV(sc),
1358 "cannot allocate interrupt package\n");
1359 uea_leaves(INS_TO_USBDEV(sc));
1360 return -ENOMEM;
1361 }
1362
1363 sc->urb_int = usb_alloc_urb(0, GFP_KERNEL);
1364 if (!sc->urb_int) {
1365 uea_err(INS_TO_USBDEV(sc), "cannot allocate interrupt URB\n");
1366 goto err;
1367 }
1368
1369 usb_fill_int_urb(sc->urb_int, sc->usb_dev,
1370 usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
1371 intr, INTR_PKT_SIZE, uea_intr, sc,
1372 sc->usb_dev->actconfig->interface[0]->altsetting[0].
1373 endpoint[0].desc.bInterval);
1374
1375 ret = usb_submit_urb(sc->urb_int, GFP_KERNEL);
1376 if (ret < 0) {
1377 uea_err(INS_TO_USBDEV(sc),
1378 "urb submition failed with error %d\n", ret);
1379 goto err;
1380 }
1381
1382 sc->kthread = kthread_run(uea_kthread, sc, "ueagle-atm");
1383 if (sc->kthread == ERR_PTR(-ENOMEM)) {
1384 uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
1385 goto err2;
1386 }
1387
1388 uea_leaves(INS_TO_USBDEV(sc));
1389 return 0;
1390
1391 err2:
1392 usb_kill_urb(sc->urb_int);
1393 err:
1394 usb_free_urb(sc->urb_int);
1395 sc->urb_int = NULL;
1396 kfree(intr);
1397 uea_leaves(INS_TO_USBDEV(sc));
1398 return -ENOMEM;
1399 }
1400
1401 /*
1402 * Stop the modem : kill kernel thread and free data
1403 */
1404 static void uea_stop(struct uea_softc *sc)
1405 {
1406 int ret;
1407 uea_enters(INS_TO_USBDEV(sc));
1408 ret = kthread_stop(sc->kthread);
1409 uea_dbg(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret);
1410
1411 /* stop any pending boot process */
1412 flush_scheduled_work();
1413
1414 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1415
1416 usb_kill_urb(sc->urb_int);
1417 kfree(sc->urb_int->transfer_buffer);
1418 usb_free_urb(sc->urb_int);
1419
1420 if (sc->dsp_firm)
1421 release_firmware(sc->dsp_firm);
1422 uea_leaves(INS_TO_USBDEV(sc));
1423 }
1424
1425 /* syfs interface */
1426 static struct uea_softc *dev_to_uea(struct device *dev)
1427 {
1428 struct usb_interface *intf;
1429 struct usbatm_data *usbatm;
1430
1431 intf = to_usb_interface(dev);
1432 if (!intf)
1433 return NULL;
1434
1435 usbatm = usb_get_intfdata(intf);
1436 if (!usbatm)
1437 return NULL;
1438
1439 return usbatm->driver_data;
1440 }
1441
1442 static ssize_t read_status(struct device *dev, struct device_attribute *attr,
1443 char *buf)
1444 {
1445 int ret = -ENODEV;
1446 struct uea_softc *sc;
1447
1448 mutex_lock(&uea_mutex);
1449 sc = dev_to_uea(dev);
1450 if (!sc)
1451 goto out;
1452 ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.state);
1453 out:
1454 mutex_unlock(&uea_mutex);
1455 return ret;
1456 }
1457
1458 static ssize_t reboot(struct device *dev, struct device_attribute *attr,
1459 const char *buf, size_t count)
1460 {
1461 int ret = -ENODEV;
1462 struct uea_softc *sc;
1463
1464 mutex_lock(&uea_mutex);
1465 sc = dev_to_uea(dev);
1466 if (!sc)
1467 goto out;
1468 sc->reset = 1;
1469 ret = count;
1470 out:
1471 mutex_unlock(&uea_mutex);
1472 return ret;
1473 }
1474
1475 static DEVICE_ATTR(stat_status, S_IWUGO | S_IRUGO, read_status, reboot);
1476
1477 static ssize_t read_human_status(struct device *dev, struct device_attribute *attr,
1478 char *buf)
1479 {
1480 int ret = -ENODEV;
1481 struct uea_softc *sc;
1482
1483 mutex_lock(&uea_mutex);
1484 sc = dev_to_uea(dev);
1485 if (!sc)
1486 goto out;
1487
1488 switch (GET_STATUS(sc->stats.phy.state)) {
1489 case 0:
1490 ret = sprintf(buf, "Modem is booting\n");
1491 break;
1492 case 1:
1493 ret = sprintf(buf, "Modem is initializing\n");
1494 break;
1495 case 2:
1496 ret = sprintf(buf, "Modem is operational\n");
1497 break;
1498 default:
1499 ret = sprintf(buf, "Modem synchronization failed\n");
1500 break;
1501 }
1502 out:
1503 mutex_unlock(&uea_mutex);
1504 return ret;
1505 }
1506
1507 static DEVICE_ATTR(stat_human_status, S_IWUGO | S_IRUGO, read_human_status, NULL);
1508
1509 static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
1510 char *buf)
1511 {
1512 int ret = -ENODEV;
1513 struct uea_softc *sc;
1514
1515 mutex_lock(&uea_mutex);
1516 sc = dev_to_uea(dev);
1517 if (!sc)
1518 goto out;
1519
1520 if (sc->stats.phy.flags & 0x0C00)
1521 ret = sprintf(buf, "ERROR\n");
1522 else if (sc->stats.phy.flags & 0x0030)
1523 ret = sprintf(buf, "LOSS\n");
1524 else
1525 ret = sprintf(buf, "GOOD\n");
1526 out:
1527 mutex_unlock(&uea_mutex);
1528 return ret;
1529 }
1530
1531 static DEVICE_ATTR(stat_delin, S_IWUGO | S_IRUGO, read_delin, NULL);
1532
1533 #define UEA_ATTR(name, reset) \
1534 \
1535 static ssize_t read_##name(struct device *dev, \
1536 struct device_attribute *attr, char *buf) \
1537 { \
1538 int ret = -ENODEV; \
1539 struct uea_softc *sc; \
1540 \
1541 mutex_lock(&uea_mutex); \
1542 sc = dev_to_uea(dev); \
1543 if (!sc) \
1544 goto out; \
1545 ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name); \
1546 if (reset) \
1547 sc->stats.phy.name = 0; \
1548 out: \
1549 mutex_unlock(&uea_mutex); \
1550 return ret; \
1551 } \
1552 \
1553 static DEVICE_ATTR(stat_##name, S_IRUGO, read_##name, NULL)
1554
1555 UEA_ATTR(mflags, 1);
1556 UEA_ATTR(vidcpe, 0);
1557 UEA_ATTR(usrate, 0);
1558 UEA_ATTR(dsrate, 0);
1559 UEA_ATTR(usattenuation, 0);
1560 UEA_ATTR(dsattenuation, 0);
1561 UEA_ATTR(usmargin, 0);
1562 UEA_ATTR(dsmargin, 0);
1563 UEA_ATTR(txflow, 0);
1564 UEA_ATTR(rxflow, 0);
1565 UEA_ATTR(uscorr, 0);
1566 UEA_ATTR(dscorr, 0);
1567 UEA_ATTR(usunc, 0);
1568 UEA_ATTR(dsunc, 0);
1569
1570 /* Retrieve the device End System Identifier (MAC) */
1571
1572 #define htoi(x) (isdigit(x) ? x-'0' : toupper(x)-'A'+10)
1573 static int uea_getesi(struct uea_softc *sc, u_char * esi)
1574 {
1575 unsigned char mac_str[2 * ETH_ALEN + 1];
1576 int i;
1577 if (usb_string
1578 (sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str,
1579 sizeof(mac_str)) != 2 * ETH_ALEN)
1580 return 1;
1581
1582 for (i = 0; i < ETH_ALEN; i++)
1583 esi[i] = htoi(mac_str[2 * i]) * 16 + htoi(mac_str[2 * i + 1]);
1584
1585 return 0;
1586 }
1587
1588 /* ATM stuff */
1589 static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
1590 {
1591 struct uea_softc *sc = usbatm->driver_data;
1592
1593 return uea_getesi(sc, atm_dev->esi);
1594 }
1595
1596 static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
1597 {
1598 struct uea_softc *sc = usbatm->driver_data;
1599
1600 wait_event(sc->sync_q, IS_OPERATIONAL(sc));
1601
1602 return 0;
1603
1604 }
1605
1606 static int claim_interface(struct usb_device *usb_dev,
1607 struct usbatm_data *usbatm, int ifnum)
1608 {
1609 int ret;
1610 struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum);
1611
1612 if (!intf) {
1613 uea_err(usb_dev, "interface %d not found\n", ifnum);
1614 return -ENODEV;
1615 }
1616
1617 ret = usb_driver_claim_interface(&uea_driver, intf, usbatm);
1618 if (ret != 0)
1619 uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum,
1620 ret);
1621 return ret;
1622 }
1623
1624 static struct attribute *attrs[] = {
1625 &dev_attr_stat_status.attr,
1626 &dev_attr_stat_mflags.attr,
1627 &dev_attr_stat_human_status.attr,
1628 &dev_attr_stat_delin.attr,
1629 &dev_attr_stat_vidcpe.attr,
1630 &dev_attr_stat_usrate.attr,
1631 &dev_attr_stat_dsrate.attr,
1632 &dev_attr_stat_usattenuation.attr,
1633 &dev_attr_stat_dsattenuation.attr,
1634 &dev_attr_stat_usmargin.attr,
1635 &dev_attr_stat_dsmargin.attr,
1636 &dev_attr_stat_txflow.attr,
1637 &dev_attr_stat_rxflow.attr,
1638 &dev_attr_stat_uscorr.attr,
1639 &dev_attr_stat_dscorr.attr,
1640 &dev_attr_stat_usunc.attr,
1641 &dev_attr_stat_dsunc.attr,
1642 };
1643 static struct attribute_group attr_grp = {
1644 .attrs = attrs,
1645 };
1646
1647 static int create_fs_entries(struct usb_interface *intf)
1648 {
1649 return sysfs_create_group(&intf->dev.kobj, &attr_grp);
1650 }
1651
1652 static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
1653 const struct usb_device_id *id)
1654 {
1655 struct usb_device *usb = interface_to_usbdev(intf);
1656 struct uea_softc *sc;
1657 int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
1658
1659 uea_enters(usb);
1660
1661 /* interface 0 is for firmware/monitoring */
1662 if (ifnum != UEA_INTR_IFACE_NO)
1663 return -ENODEV;
1664
1665 usbatm->flags = (sync_wait[modem_index] ? 0 : UDSL_SKIP_HEAVY_INIT);
1666
1667 /* interface 1 is for outbound traffic */
1668 ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO);
1669 if (ret < 0)
1670 return ret;
1671
1672 /* ADI930 has only 2 interfaces and inbound traffic is on interface 1 */
1673 if (UEA_CHIP_VERSION(id) != ADI930) {
1674 /* interface 2 is for inbound traffic */
1675 ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO);
1676 if (ret < 0)
1677 return ret;
1678 }
1679
1680 sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
1681 if (!sc) {
1682 uea_err(usb, "uea_init: not enough memory !\n");
1683 return -ENOMEM;
1684 }
1685
1686 sc->usb_dev = usb;
1687 usbatm->driver_data = sc;
1688 sc->usbatm = usbatm;
1689 sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0;
1690 sc->driver_info = id->driver_info;
1691
1692 /* ADI930 don't support iso */
1693 if (UEA_CHIP_VERSION(id) != ADI930 && use_iso[sc->modem_index]) {
1694 int i;
1695
1696 /* try set fastest alternate for inbound traffic interface */
1697 for (i = FASTEST_ISO_INTF; i > 0; i--)
1698 if (usb_set_interface(usb, UEA_DS_IFACE_NO, i) == 0)
1699 break;
1700
1701 if (i > 0) {
1702 uea_dbg(usb, "set alternate %d for 2 interface\n", i);
1703 uea_info(usb, "using iso mode\n");
1704 usbatm->flags |= UDSL_USE_ISOC | UDSL_IGNORE_EILSEQ;
1705 } else {
1706 uea_err(usb, "setting any alternate failed for "
1707 "2 interface, using bulk mode\n");
1708 }
1709 }
1710
1711 ret = uea_boot(sc);
1712 if (ret < 0) {
1713 kfree(sc);
1714 return ret;
1715 }
1716
1717 ret = create_fs_entries(intf);
1718 if (ret) {
1719 uea_stop(sc);
1720 kfree(sc);
1721 return ret;
1722 }
1723 return 0;
1724 }
1725
1726 static void destroy_fs_entries(struct usb_interface *intf)
1727 {
1728 sysfs_remove_group(&intf->dev.kobj, &attr_grp);
1729 }
1730
1731 static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
1732 {
1733 struct uea_softc *sc = usbatm->driver_data;
1734
1735 destroy_fs_entries(intf);
1736 uea_stop(sc);
1737 kfree(sc);
1738 }
1739
1740 static struct usbatm_driver uea_usbatm_driver = {
1741 .driver_name = "ueagle-atm",
1742 .bind = uea_bind,
1743 .atm_start = uea_atm_open,
1744 .unbind = uea_unbind,
1745 .heavy_init = uea_heavy,
1746 .bulk_in = UEA_BULK_DATA_PIPE,
1747 .bulk_out = UEA_BULK_DATA_PIPE,
1748 .isoc_in = UEA_ISO_DATA_PIPE,
1749 };
1750
1751 static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
1752 {
1753 struct usb_device *usb = interface_to_usbdev(intf);
1754
1755 uea_enters(usb);
1756 uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) : %s\n",
1757 le16_to_cpu(usb->descriptor.idVendor),
1758 le16_to_cpu(usb->descriptor.idProduct),
1759 chip_name[UEA_CHIP_VERSION(id)]);
1760
1761 usb_reset_device(usb);
1762
1763 if (UEA_IS_PREFIRM(id))
1764 return uea_load_firmware(usb, UEA_CHIP_VERSION(id));
1765
1766 return usbatm_usb_probe(intf, id, &uea_usbatm_driver);
1767 }
1768
1769 static void uea_disconnect(struct usb_interface *intf)
1770 {
1771 struct usb_device *usb = interface_to_usbdev(intf);
1772 int ifnum = intf->altsetting->desc.bInterfaceNumber;
1773 uea_enters(usb);
1774
1775 /* ADI930 has 2 interfaces and eagle 3 interfaces.
1776 * Pre-firmware device has one interface
1777 */
1778 if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) {
1779 mutex_lock(&uea_mutex);
1780 usbatm_usb_disconnect(intf);
1781 mutex_unlock(&uea_mutex);
1782 uea_info(usb, "ADSL device removed\n");
1783 }
1784
1785 uea_leaves(usb);
1786 }
1787
1788 /*
1789 * List of supported VID/PID
1790 */
1791 static const struct usb_device_id uea_ids[] = {
1792 {USB_DEVICE(ELSA_VID, ELSA_PID_PREFIRM), .driver_info = ADI930 | PREFIRM},
1793 {USB_DEVICE(ELSA_VID, ELSA_PID_PSTFIRM), .driver_info = ADI930 | PSTFIRM},
1794 {USB_DEVICE(EAGLE_VID, EAGLE_I_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1795 {USB_DEVICE(EAGLE_VID, EAGLE_I_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1796 {USB_DEVICE(EAGLE_VID, EAGLE_II_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
1797 {USB_DEVICE(EAGLE_VID, EAGLE_II_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
1798 {USB_DEVICE(EAGLE_VID, EAGLE_IIC_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
1799 {USB_DEVICE(EAGLE_VID, EAGLE_IIC_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
1800 {USB_DEVICE(EAGLE_VID, EAGLE_III_PID_PREFIRM), .driver_info = EAGLE_III | PREFIRM},
1801 {USB_DEVICE(EAGLE_VID, EAGLE_III_PID_PSTFIRM), .driver_info = EAGLE_III | PSTFIRM},
1802 {USB_DEVICE(USR_VID, MILLER_A_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1803 {USB_DEVICE(USR_VID, MILLER_A_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1804 {USB_DEVICE(USR_VID, MILLER_B_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1805 {USB_DEVICE(USR_VID, MILLER_B_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1806 {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM},
1807 {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM},
1808 {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM},
1809 {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM},
1810 {}
1811 };
1812
1813 /*
1814 * USB driver descriptor
1815 */
1816 static struct usb_driver uea_driver = {
1817 .name = "ueagle-atm",
1818 .id_table = uea_ids,
1819 .probe = uea_probe,
1820 .disconnect = uea_disconnect,
1821 };
1822
1823 MODULE_DEVICE_TABLE(usb, uea_ids);
1824
1825 /**
1826 * uea_init - Initialize the module.
1827 * Register to USB subsystem
1828 */
1829 static int __init uea_init(void)
1830 {
1831 printk(KERN_INFO "[ueagle-atm] driver " EAGLEUSBVERSION " loaded\n");
1832
1833 usb_register(&uea_driver);
1834
1835 return 0;
1836 }
1837
1838 module_init(uea_init);
1839
1840 /**
1841 * uea_exit - Destroy module
1842 * Deregister with USB subsystem
1843 */
1844 static void __exit uea_exit(void)
1845 {
1846 /*
1847 * This calls automatically the uea_disconnect method if necessary:
1848 */
1849 usb_deregister(&uea_driver);
1850
1851 printk(KERN_INFO "[ueagle-atm] driver unloaded\n");
1852 }
1853
1854 module_exit(uea_exit);
1855
1856 MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka");
1857 MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver");
1858 MODULE_LICENSE("Dual BSD/GPL");
kernel source for telekom puls (alcatel/mediatek)