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[PATCH] USBATM: semaphore to mutex conversion
[deliverable/linux.git] / drivers / usb / atm / ueagle-atm.c
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b72458a8 1/*-
2 * Copyright (c) 2003, 2004
3 * Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
4 *
5 * Copyright (c) 2005 Matthieu Castet <castet.matthieu@free.fr>
6 *
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice unmodified, this list of conditions, and the following
18 * disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * GPL license :
36 * This program is free software; you can redistribute it and/or
37 * modify it under the terms of the GNU General Public License
38 * as published by the Free Software Foundation; either version 2
39 * of the License, or (at your option) any later version.
40 *
41 * This program is distributed in the hope that it will be useful,
42 * but WITHOUT ANY WARRANTY; without even the implied warranty of
43 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
44 * GNU General Public License for more details.
45 *
46 * You should have received a copy of the GNU General Public License
47 * along with this program; if not, write to the Free Software
48 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
49 *
50 *
51 * HISTORY : some part of the code was base on ueagle 1.3 BSD driver,
52 * Damien Bergamini agree to put his code under a DUAL GPL/BSD license.
53 *
54 * The rest of the code was was rewritten from scratch.
55 */
56
57#include <linux/module.h>
58#include <linux/moduleparam.h>
59#include <linux/init.h>
60#include <linux/crc32.h>
61#include <linux/usb.h>
62#include <linux/firmware.h>
63#include <linux/ctype.h>
64#include <linux/kthread.h>
65#include <linux/version.h>
ab3c81ff 66#include <linux/mutex.h>
b72458a8 67#include <asm/unaligned.h>
68
69#include "usbatm.h"
70
71#define EAGLEUSBVERSION "ueagle 1.1"
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
107struct uea_cmvs {
108 u32 address;
109 u16 offset;
110 u32 data;
111} __attribute__ ((packed));
112
113struct 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)
208enum {
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 */
276struct 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) */
288struct 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 */
330struct swap_info {
331 __u8 bSwapPageNo;
332 __u8 bOvl; /* overlay */
333} __attribute__ ((packed));
334
335/* structure representing interrupt data */
336struct 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
361static struct usb_driver uea_driver;
ab3c81ff 362static DEFINE_MUTEX(uea_mutex);
b72458a8 363static const char *chip_name[] = {"ADI930", "Eagle I", "Eagle II", "Eagle III"};
364
365static int modem_index;
366static unsigned int debug;
367static int sync_wait[NB_MODEM];
368static char *cmv_file[NB_MODEM];
369
370module_param(debug, uint, 0644);
371MODULE_PARM_DESC(debug, "module debug level (0=off,1=on,2=verbose)");
372module_param_array(sync_wait, bool, NULL, 0644);
373MODULE_PARM_DESC(sync_wait, "wait the synchronisation before starting ATM");
374module_param_array(cmv_file, charp, NULL, 0644);
375MODULE_PARM_DESC(cmv_file,
376 "file name with configuration and management variables");
377
378#define UPDATE_ATM_STAT(type, val) \
379 do { \
380 if (sc->usbatm->atm_dev) \
381 sc->usbatm->atm_dev->type = val; \
382 } while (0)
383
384/* Firmware loading */
385#define LOAD_INTERNAL 0xA0
386#define F8051_USBCS 0x7f92
387
388/**
389 * uea_send_modem_cmd - Send a command for pre-firmware devices.
390 */
391static int uea_send_modem_cmd(struct usb_device *usb,
392 u16 addr, u16 size, u8 * buff)
393{
394 int ret = -ENOMEM;
395 u8 *xfer_buff;
396
397 xfer_buff = kmalloc(size, GFP_KERNEL);
398 if (xfer_buff) {
399 memcpy(xfer_buff, buff, size);
400 ret = usb_control_msg(usb,
401 usb_sndctrlpipe(usb, 0),
402 LOAD_INTERNAL,
403 USB_DIR_OUT | USB_TYPE_VENDOR |
404 USB_RECIP_DEVICE, addr, 0, xfer_buff,
405 size, CTRL_TIMEOUT);
406 kfree(xfer_buff);
407 }
408
409 if (ret < 0)
410 return ret;
411
412 return (ret == size) ? 0 : -EIO;
413}
414
415static void uea_upload_pre_firmware(const struct firmware *fw_entry, void *context)
416{
417 struct usb_device *usb = context;
418 u8 *pfw, value;
419 u32 crc = 0;
420 int ret, size;
421
422 uea_enters(usb);
423 if (!fw_entry) {
424 uea_err(usb, "firmware is not available\n");
425 goto err;
426 }
427
428 pfw = fw_entry->data;
429 size = fw_entry->size;
8d7802ed 430 if (size < 4)
431 goto err_fw_corrupted;
b72458a8 432
433 crc = FW_GET_LONG(pfw);
434 pfw += 4;
435 size -= 4;
8d7802ed 436 if (crc32_be(0, pfw, size) != crc)
437 goto err_fw_corrupted;
b72458a8 438
439 /*
440 * Start to upload formware : send reset
441 */
442 value = 1;
443 ret = uea_send_modem_cmd(usb, F8051_USBCS, sizeof(value), &value);
444
445 if (ret < 0) {
446 uea_err(usb, "modem reset failed with error %d\n", ret);
447 goto err;
448 }
449
8d7802ed 450 while (size > 3) {
b72458a8 451 u8 len = FW_GET_BYTE(pfw);
452 u16 add = FW_GET_WORD(pfw + 1);
8d7802ed 453
454 size -= len + 3;
455 if (size < 0)
456 goto err_fw_corrupted;
457
b72458a8 458 ret = uea_send_modem_cmd(usb, add, len, pfw + 3);
459 if (ret < 0) {
460 uea_err(usb, "uploading firmware data failed "
461 "with error %d\n", ret);
462 goto err;
463 }
464 pfw += len + 3;
b72458a8 465 }
466
8d7802ed 467 if (size != 0)
468 goto err_fw_corrupted;
469
b72458a8 470 /*
471 * Tell the modem we finish : de-assert reset
472 */
473 value = 0;
474 ret = uea_send_modem_cmd(usb, F8051_USBCS, 1, &value);
475 if (ret < 0)
476 uea_err(usb, "modem de-assert failed with error %d\n", ret);
477 else
478 uea_info(usb, "firmware uploaded\n");
479
8d7802ed 480 uea_leaves(usb);
481 return;
482
483err_fw_corrupted:
484 uea_err(usb, "firmware is corrupted\n");
b72458a8 485err:
486 uea_leaves(usb);
487}
488
489/**
490 * uea_load_firmware - Load usb firmware for pre-firmware devices.
491 */
492static int uea_load_firmware(struct usb_device *usb, unsigned int ver)
493{
494 int ret;
495 char *fw_name = FW_DIR "eagle.fw";
496
497 uea_enters(usb);
498 uea_info(usb, "pre-firmware device, uploading firmware\n");
499
500 switch (ver) {
501 case ADI930:
502 fw_name = FW_DIR "adi930.fw";
503 break;
504 case EAGLE_I:
505 fw_name = FW_DIR "eagleI.fw";
506 break;
507 case EAGLE_II:
508 fw_name = FW_DIR "eagleII.fw";
509 break;
510 case EAGLE_III:
511 fw_name = FW_DIR "eagleIII.fw";
512 break;
513 }
514
515 ret = request_firmware_nowait(THIS_MODULE, 1, fw_name, &usb->dev, usb, uea_upload_pre_firmware);
516 if (ret)
517 uea_err(usb, "firmware %s is not available\n", fw_name);
518 else
519 uea_info(usb, "loading firmware %s\n", fw_name);
520
521 uea_leaves(usb);
522 return ret;
523}
524
525/* modem management : dsp firmware, send/read CMV, monitoring statistic
526 */
527
528/*
529 * Make sure that the DSP code provided is safe to use.
530 */
531static int check_dsp(u8 *dsp, unsigned int len)
532{
533 u8 pagecount, blockcount;
534 u16 blocksize;
535 u32 pageoffset;
536 unsigned int i, j, p, pp;
537
b72458a8 538 pagecount = FW_GET_BYTE(dsp);
539 p = 1;
540
541 /* enough space for page offsets? */
542 if (p + 4 * pagecount > len)
543 return 1;
544
545 for (i = 0; i < pagecount; i++) {
546
547 pageoffset = FW_GET_LONG(dsp + p);
548 p += 4;
549
550 if (pageoffset == 0)
551 continue;
552
553 /* enough space for blockcount? */
554 if (pageoffset >= len)
555 return 1;
556
557 pp = pageoffset;
558 blockcount = FW_GET_BYTE(dsp + pp);
559 pp += 1;
560
561 for (j = 0; j < blockcount; j++) {
562
563 /* enough space for block header? */
564 if (pp + 4 > len)
565 return 1;
566
567 pp += 2; /* skip blockaddr */
568 blocksize = FW_GET_WORD(dsp + pp);
569 pp += 2;
570
571 /* enough space for block data? */
572 if (pp + blocksize > len)
573 return 1;
574
575 pp += blocksize;
576 }
577 }
578
579 return 0;
580}
581
582/*
583 * send data to the idma pipe
584 * */
585static int uea_idma_write(struct uea_softc *sc, void *data, u32 size)
586{
587 int ret = -ENOMEM;
588 u8 *xfer_buff;
589 int bytes_read;
590
591 xfer_buff = kmalloc(size, GFP_KERNEL);
592 if (!xfer_buff) {
593 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
594 return ret;
595 }
596
597 memcpy(xfer_buff, data, size);
598
599 ret = usb_bulk_msg(sc->usb_dev,
600 usb_sndbulkpipe(sc->usb_dev, UEA_IDMA_PIPE),
601 xfer_buff, size, &bytes_read, BULK_TIMEOUT);
602
603 kfree(xfer_buff);
604 if (ret < 0)
605 return ret;
606 if (size != bytes_read) {
607 uea_err(INS_TO_USBDEV(sc), "size != bytes_read %d %d\n", size,
608 bytes_read);
609 return -EIO;
610 }
611
612 return 0;
613}
614
615static int request_dsp(struct uea_softc *sc)
616{
617 int ret;
618 char *dsp_name;
619
620 if (UEA_CHIP_VERSION(sc) == ADI930) {
621 if (IS_ISDN(sc))
622 dsp_name = FW_DIR "DSP9i.bin";
623 else
624 dsp_name = FW_DIR "DSP9p.bin";
625 } else {
626 if (IS_ISDN(sc))
627 dsp_name = FW_DIR "DSPei.bin";
628 else
629 dsp_name = FW_DIR "DSPep.bin";
630 }
631
632 ret = request_firmware(&sc->dsp_firm,
633 dsp_name, &sc->usb_dev->dev);
634 if (ret < 0) {
635 uea_err(INS_TO_USBDEV(sc),
636 "requesting firmware %s failed with error %d\n",
637 dsp_name, ret);
638 return ret;
639 }
640
641 if (check_dsp(sc->dsp_firm->data, sc->dsp_firm->size)) {
642 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
643 dsp_name);
644 release_firmware(sc->dsp_firm);
645 sc->dsp_firm = NULL;
646 return -EILSEQ;
647 }
648
649 return 0;
650}
651
652/*
653 * The uea_load_page() function must be called within a process context
654 */
655static void uea_load_page(void *xsc)
656{
657 struct uea_softc *sc = xsc;
658 u16 pageno = sc->pageno;
659 u16 ovl = sc->ovl;
660 struct block_info bi;
661
662 u8 *p;
663 u8 pagecount, blockcount;
664 u16 blockaddr, blocksize;
665 u32 pageoffset;
666 int i;
667
668 /* reload firmware when reboot start and it's loaded already */
669 if (ovl == 0 && pageno == 0 && sc->dsp_firm) {
670 release_firmware(sc->dsp_firm);
671 sc->dsp_firm = NULL;
672 }
673
674 if (sc->dsp_firm == NULL && request_dsp(sc) < 0)
675 return;
676
677 p = sc->dsp_firm->data;
678 pagecount = FW_GET_BYTE(p);
679 p += 1;
680
681 if (pageno >= pagecount)
682 goto bad1;
683
684 p += 4 * pageno;
685 pageoffset = FW_GET_LONG(p);
686
687 if (pageoffset == 0)
688 goto bad1;
689
690 p = sc->dsp_firm->data + pageoffset;
691 blockcount = FW_GET_BYTE(p);
692 p += 1;
693
694 uea_dbg(INS_TO_USBDEV(sc),
695 "sending %u blocks for DSP page %u\n", blockcount, pageno);
696
697 bi.wHdr = cpu_to_le16(UEA_BIHDR);
698 bi.wOvl = cpu_to_le16(ovl);
699 bi.wOvlOffset = cpu_to_le16(ovl | 0x8000);
700
701 for (i = 0; i < blockcount; i++) {
702 blockaddr = FW_GET_WORD(p);
703 p += 2;
704
705 blocksize = FW_GET_WORD(p);
706 p += 2;
707
708 bi.wSize = cpu_to_le16(blocksize);
709 bi.wAddress = cpu_to_le16(blockaddr);
710 bi.wLast = cpu_to_le16((i == blockcount - 1) ? 1 : 0);
711
712 /* send block info through the IDMA pipe */
713 if (uea_idma_write(sc, &bi, BLOCK_INFO_SIZE))
714 goto bad2;
715
716 /* send block data through the IDMA pipe */
717 if (uea_idma_write(sc, p, blocksize))
718 goto bad2;
719
720 p += blocksize;
721 }
722
723 return;
724
725bad2:
726 uea_err(INS_TO_USBDEV(sc), "sending DSP block %u failed\n", i);
727 return;
728bad1:
729 uea_err(INS_TO_USBDEV(sc), "invalid DSP page %u requested\n",pageno);
730}
731
732static inline void wake_up_cmv_ack(struct uea_softc *sc)
733{
734 sc->cmv_ack = 1;
735 wake_up(&sc->cmv_ack_wait);
736}
737
738static inline int wait_cmv_ack(struct uea_softc *sc)
739{
740 int ret = wait_event_timeout(sc->cmv_ack_wait,
741 sc->cmv_ack, ACK_TIMEOUT);
742 sc->cmv_ack = 0;
743
744 if (ret < 0)
745 return ret;
746
747 return (ret == 0) ? -ETIMEDOUT : 0;
748
749}
750
751#define UCDC_SEND_ENCAPSULATED_COMMAND 0x00
752
753static int uea_request(struct uea_softc *sc,
754 u16 value, u16 index, u16 size, void *data)
755{
756 u8 *xfer_buff;
757 int ret = -ENOMEM;
758
759 xfer_buff = kmalloc(size, GFP_KERNEL);
760 if (!xfer_buff) {
761 uea_err(INS_TO_USBDEV(sc), "can't allocate xfer_buff\n");
762 return ret;
763 }
764 memcpy(xfer_buff, data, size);
765
766 ret = usb_control_msg(sc->usb_dev, usb_sndctrlpipe(sc->usb_dev, 0),
767 UCDC_SEND_ENCAPSULATED_COMMAND,
768 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
769 value, index, xfer_buff, size, CTRL_TIMEOUT);
770
771 kfree(xfer_buff);
772 if (ret < 0) {
773 uea_err(INS_TO_USBDEV(sc), "usb_control_msg error %d\n", ret);
774 return ret;
775 }
776
777 if (ret != size) {
778 uea_err(INS_TO_USBDEV(sc),
779 "usb_control_msg send only %d bytes (instead of %d)\n",
780 ret, size);
781 return -EIO;
782 }
783
784 return 0;
785}
786
787static int uea_cmv(struct uea_softc *sc,
788 u8 function, u32 address, u16 offset, u32 data)
789{
790 struct cmv cmv;
791 int ret;
792
793 /* we send a request, but we expect a reply */
794 sc->cmv_function = function | 0x2;
795 sc->cmv_idx++;
796 sc->cmv_address = address;
797 sc->cmv_offset = offset;
798
799 cmv.wPreamble = cpu_to_le16(PREAMBLE);
800 cmv.bDirection = HOSTTOMODEM;
801 cmv.bFunction = function;
802 cmv.wIndex = cpu_to_le16(sc->cmv_idx);
803 put_unaligned(cpu_to_le32(address), &cmv.dwSymbolicAddress);
804 cmv.wOffsetAddress = cpu_to_le16(offset);
805 put_unaligned(cpu_to_le32(data >> 16 | data << 16), &cmv.dwData);
806
807 ret = uea_request(sc, UEA_SET_BLOCK, UEA_MPTX_START, CMV_SIZE, &cmv);
808 if (ret < 0)
809 return ret;
810 return wait_cmv_ack(sc);
811}
812
813static inline int uea_read_cmv(struct uea_softc *sc,
814 u32 address, u16 offset, u32 *data)
815{
816 int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTREAD),
817 address, offset, 0);
818 if (ret < 0)
819 uea_err(INS_TO_USBDEV(sc),
820 "reading cmv failed with error %d\n", ret);
821 else
822 *data = sc->data;
823
824 return ret;
825}
826
827static inline int uea_write_cmv(struct uea_softc *sc,
828 u32 address, u16 offset, u32 data)
829{
830 int ret = uea_cmv(sc, MAKEFUNCTION(MEMACCESS, REQUESTWRITE),
831 address, offset, data);
832 if (ret < 0)
833 uea_err(INS_TO_USBDEV(sc),
834 "writing cmv failed with error %d\n", ret);
835
836 return ret;
837}
838
839/*
840 * Monitor the modem and update the stat
841 * return 0 if everything is ok
842 * return < 0 if an error occurs (-EAGAIN reboot needed)
843 */
844static int uea_stat(struct uea_softc *sc)
845{
846 u32 data;
847 int ret;
848
849 uea_enters(INS_TO_USBDEV(sc));
850 data = sc->stats.phy.state;
851
852 ret = uea_read_cmv(sc, SA_STAT, 0, &sc->stats.phy.state);
853 if (ret < 0)
854 return ret;
855
856 switch (GET_STATUS(sc->stats.phy.state)) {
857 case 0: /* not yet synchronized */
858 uea_dbg(INS_TO_USBDEV(sc),
859 "modem not yet synchronized\n");
860 return 0;
861
862 case 1: /* initialization */
863 uea_dbg(INS_TO_USBDEV(sc), "modem initializing\n");
864 return 0;
865
866 case 2: /* operational */
867 uea_vdbg(INS_TO_USBDEV(sc), "modem operational\n");
868 break;
869
870 case 3: /* fail ... */
871 uea_info(INS_TO_USBDEV(sc), "modem synchronization failed\n");
872 return -EAGAIN;
873
874 case 4 ... 6: /* test state */
875 uea_warn(INS_TO_USBDEV(sc),
876 "modem in test mode - not supported\n");
877 return -EAGAIN;
878
879 case 7: /* fast-retain ... */
880 uea_info(INS_TO_USBDEV(sc), "modem in fast-retain mode\n");
881 return 0;
882 default:
883 uea_err(INS_TO_USBDEV(sc), "modem invalid SW mode %d\n",
884 GET_STATUS(sc->stats.phy.state));
885 return -EAGAIN;
886 }
887
888 if (GET_STATUS(data) != 2) {
889 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_OFF, 0, NULL);
890 uea_info(INS_TO_USBDEV(sc), "modem operational\n");
891
892 /* release the dsp firmware as it is not needed until
893 * the next failure
894 */
895 if (sc->dsp_firm) {
896 release_firmware(sc->dsp_firm);
897 sc->dsp_firm = NULL;
898 }
899
900 ret = uea_read_cmv(sc, SA_INFO, 10, &sc->stats.phy.firmid);
901 if (ret < 0)
902 return ret;
903 uea_info(INS_TO_USBDEV(sc), "ATU-R firmware version : %x\n",
904 sc->stats.phy.firmid);
905 }
906
907 /* always update it as atm layer could not be init when we switch to
908 * operational state
909 */
910 UPDATE_ATM_STAT(signal, ATM_PHY_SIG_FOUND);
911
912 /* wake up processes waiting for synchronization */
913 wake_up(&sc->sync_q);
914
915 ret = uea_read_cmv(sc, SA_DIAG, 2, &sc->stats.phy.flags);
916 if (ret < 0)
917 return ret;
918 sc->stats.phy.mflags |= sc->stats.phy.flags;
919
920 /* in case of a flags ( for example delineation LOSS (& 0x10)),
921 * we check the status again in order to detect the failure earlier
922 */
923 if (sc->stats.phy.flags) {
924 uea_dbg(INS_TO_USBDEV(sc), "Stat flag = %d\n",
925 sc->stats.phy.flags);
926 return 0;
927 }
928
929 ret = uea_read_cmv(sc, SA_RATE, 0, &data);
930 if (ret < 0)
931 return ret;
932
933 /* in bulk mode the modem have problem with high rate
934 * changing internal timing could improve things, but the
935 * value is misterious.
936 * ADI930 don't support it (-EPIPE error).
937 */
938 if (UEA_CHIP_VERSION(sc) != ADI930
939 && sc->stats.phy.dsrate != (data >> 16) * 32) {
940 /* Original timming from ADI(used in windows driver)
941 * 0x20ffff>>16 * 32 = 32 * 32 = 1Mbits
942 */
943 u16 timeout = (data <= 0x20ffff) ? 0 : 1;
944 ret = uea_request(sc, UEA_SET_TIMEOUT, timeout, 0, NULL);
945 uea_info(INS_TO_USBDEV(sc),
946 "setting new timeout %d%s\n", timeout,
947 ret < 0?" failed":"");
948 }
949 sc->stats.phy.dsrate = (data >> 16) * 32;
950 sc->stats.phy.usrate = (data & 0xffff) * 32;
951 UPDATE_ATM_STAT(link_rate, sc->stats.phy.dsrate * 1000 / 424);
952
953 ret = uea_read_cmv(sc, SA_DIAG, 23, &data);
954 if (ret < 0)
955 return ret;
956 sc->stats.phy.dsattenuation = (data & 0xff) / 2;
957
958 ret = uea_read_cmv(sc, SA_DIAG, 47, &data);
959 if (ret < 0)
960 return ret;
961 sc->stats.phy.usattenuation = (data & 0xff) / 2;
962
963 ret = uea_read_cmv(sc, SA_DIAG, 25, &sc->stats.phy.dsmargin);
964 if (ret < 0)
965 return ret;
966
967 ret = uea_read_cmv(sc, SA_DIAG, 49, &sc->stats.phy.usmargin);
968 if (ret < 0)
969 return ret;
970
971 ret = uea_read_cmv(sc, SA_DIAG, 51, &sc->stats.phy.rxflow);
972 if (ret < 0)
973 return ret;
974
975 ret = uea_read_cmv(sc, SA_DIAG, 52, &sc->stats.phy.txflow);
976 if (ret < 0)
977 return ret;
978
979 ret = uea_read_cmv(sc, SA_DIAG, 54, &sc->stats.phy.dsunc);
980 if (ret < 0)
981 return ret;
982
983 /* only for atu-c */
984 ret = uea_read_cmv(sc, SA_DIAG, 58, &sc->stats.phy.usunc);
985 if (ret < 0)
986 return ret;
987
988 ret = uea_read_cmv(sc, SA_DIAG, 53, &sc->stats.phy.dscorr);
989 if (ret < 0)
990 return ret;
991
992 /* only for atu-c */
993 ret = uea_read_cmv(sc, SA_DIAG, 57, &sc->stats.phy.uscorr);
994 if (ret < 0)
995 return ret;
996
997 ret = uea_read_cmv(sc, SA_INFO, 8, &sc->stats.phy.vidco);
998 if (ret < 0)
999 return ret;
1000
1001 ret = uea_read_cmv(sc, SA_INFO, 13, &sc->stats.phy.vidcpe);
1002 if (ret < 0)
1003 return ret;
1004
1005 return 0;
1006}
1007
1008static int request_cmvs(struct uea_softc *sc,
1009 struct uea_cmvs **cmvs, const struct firmware **fw)
1010{
1011 int ret, size;
1012 u8 *data;
1013 char *file;
1014 static char cmv_name[256] = FW_DIR;
1015
1016 if (cmv_file[sc->modem_index] == NULL) {
1017 if (UEA_CHIP_VERSION(sc) == ADI930)
1018 file = (IS_ISDN(sc)) ? "CMV9i.bin" : "CMV9p.bin";
1019 else
1020 file = (IS_ISDN(sc)) ? "CMVei.bin" : "CMVep.bin";
1021 } else
1022 file = cmv_file[sc->modem_index];
1023
1024 strcpy(cmv_name, FW_DIR);
1025 strlcat(cmv_name, file, sizeof(cmv_name));
1026
1027 ret = request_firmware(fw, cmv_name, &sc->usb_dev->dev);
1028 if (ret < 0) {
1029 uea_err(INS_TO_USBDEV(sc),
1030 "requesting firmware %s failed with error %d\n",
1031 cmv_name, ret);
1032 return ret;
1033 }
1034
1035 data = (u8 *) (*fw)->data;
1036 size = *data * sizeof(struct uea_cmvs) + 1;
1037 if (size != (*fw)->size) {
1038 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1039 cmv_name);
1040 release_firmware(*fw);
1041 return -EILSEQ;
1042 }
1043
1044 *cmvs = (struct uea_cmvs *)(data + 1);
1045 return *data;
1046}
1047
1048/* Start boot post firmware modem:
1049 * - send reset commands through usb control pipe
1050 * - start workqueue for DSP loading
1051 * - send CMV options to modem
1052 */
1053
1054static int uea_start_reset(struct uea_softc *sc)
1055{
1056 u16 zero = 0; /* ;-) */
1057 int i, len, ret;
1058 struct uea_cmvs *cmvs;
1059 const struct firmware *cmvs_fw;
1060
1061 uea_enters(INS_TO_USBDEV(sc));
1062 uea_info(INS_TO_USBDEV(sc), "(re)booting started\n");
1063
1064 sc->booting = 1;
1065 UPDATE_ATM_STAT(signal, ATM_PHY_SIG_LOST);
1066
1067 /* reset statistics */
1068 memset(&sc->stats, 0, sizeof(struct uea_stats));
1069
1070 /* tell the modem that we want to boot in IDMA mode */
1071 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1072 uea_request(sc, UEA_SET_MODE, UEA_BOOT_IDMA, 0, NULL);
1073
1074 /* enter reset mode */
1075 uea_request(sc, UEA_SET_MODE, UEA_START_RESET, 0, NULL);
1076
1077 /* original driver use 200ms, but windows driver use 100ms */
1078 msleep(100);
1079
1080 /* leave reset mode */
1081 uea_request(sc, UEA_SET_MODE, UEA_END_RESET, 0, NULL);
1082
1083 /* clear tx and rx mailboxes */
1084 uea_request(sc, UEA_SET_2183_DATA, UEA_MPTX_MAILBOX, 2, &zero);
1085 uea_request(sc, UEA_SET_2183_DATA, UEA_MPRX_MAILBOX, 2, &zero);
1086 uea_request(sc, UEA_SET_2183_DATA, UEA_SWAP_MAILBOX, 2, &zero);
1087
1088 msleep(1000);
1089 sc->cmv_function = MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY);
1090 sc->booting = 0;
1091
1092 /* start loading DSP */
1093 sc->pageno = 0;
1094 sc->ovl = 0;
1095 schedule_work(&sc->task);
1096
1097 /* wait for modem ready CMV */
1098 ret = wait_cmv_ack(sc);
1099 if (ret < 0)
1100 return ret;
1101
1102 /* Enter in R-IDLE (cmv) until instructed otherwise */
1103 ret = uea_write_cmv(sc, SA_CNTL, 0, 1);
1104 if (ret < 0)
1105 return ret;
1106
1107 /* get options */
1108 ret = len = request_cmvs(sc, &cmvs, &cmvs_fw);
1109 if (ret < 0)
1110 return ret;
1111
1112 /* send options */
1113 for (i = 0; i < len; i++) {
1114 ret = uea_write_cmv(sc, FW_GET_LONG(&cmvs[i].address),
1115 FW_GET_WORD(&cmvs[i].offset),
1116 FW_GET_LONG(&cmvs[i].data));
1117 if (ret < 0)
1118 goto out;
1119 }
1120 /* Enter in R-ACT-REQ */
1121 ret = uea_write_cmv(sc, SA_CNTL, 0, 2);
1122out:
1123 release_firmware(cmvs_fw);
1124 sc->reset = 0;
1125 uea_leaves(INS_TO_USBDEV(sc));
1126 return ret;
1127}
1128
1129/*
1130 * In case of an error wait 1s before rebooting the modem
1131 * if the modem don't request reboot (-EAGAIN).
1132 * Monitor the modem every 1s.
1133 */
1134
1135static int uea_kthread(void *data)
1136{
1137 struct uea_softc *sc = data;
1138 int ret = -EAGAIN;
1139
1140 uea_enters(INS_TO_USBDEV(sc));
1141 while (!kthread_should_stop()) {
1142 if (ret < 0 || sc->reset)
1143 ret = uea_start_reset(sc);
1144 if (!ret)
1145 ret = uea_stat(sc);
1146 if (ret != -EAGAIN)
1147 msleep(1000);
1148 }
1149 uea_leaves(INS_TO_USBDEV(sc));
1150 return ret;
1151}
1152
1153/* Load second usb firmware for ADI930 chip */
1154static int load_XILINX_firmware(struct uea_softc *sc)
1155{
1156 const struct firmware *fw_entry;
1157 int ret, size, u, ln;
1158 u8 *pfw, value;
1159 char *fw_name = FW_DIR "930-fpga.bin";
1160
1161 uea_enters(INS_TO_USBDEV(sc));
1162
1163 ret = request_firmware(&fw_entry, fw_name, &sc->usb_dev->dev);
1164 if (ret) {
1165 uea_err(INS_TO_USBDEV(sc), "firmware %s is not available\n",
1166 fw_name);
1167 goto err0;
1168 }
1169
1170 pfw = fw_entry->data;
1171 size = fw_entry->size;
1172 if (size != 0x577B) {
1173 uea_err(INS_TO_USBDEV(sc), "firmware %s is corrupted\n",
1174 fw_name);
1175 ret = -EILSEQ;
1176 goto err1;
1177 }
1178 for (u = 0; u < size; u += ln) {
1179 ln = min(size - u, 64);
1180 ret = uea_request(sc, 0xe, 0, ln, pfw + u);
1181 if (ret < 0) {
1182 uea_err(INS_TO_USBDEV(sc),
1183 "elsa download data failed (%d)\n", ret);
1184 goto err1;
1185 }
1186 }
1187
1188 /* finish to send the fpga
1189 */
1190 ret = uea_request(sc, 0xe, 1, 0, NULL);
1191 if (ret < 0) {
1192 uea_err(INS_TO_USBDEV(sc),
1193 "elsa download data failed (%d)\n", ret);
1194 goto err1;
1195 }
1196
1197 /*
1198 * Tell the modem we finish : de-assert reset
1199 */
1200 value = 0;
1201 ret = uea_send_modem_cmd(sc->usb_dev, 0xe, 1, &value);
1202 if (ret < 0)
1203 uea_err(sc->usb_dev, "elsa de-assert failed with error %d\n", ret);
1204
1205
1206err1:
1207 release_firmware(fw_entry);
1208err0:
1209 uea_leaves(INS_TO_USBDEV(sc));
1210 return ret;
1211}
1212
1213static void uea_dispatch_cmv(struct uea_softc *sc, struct cmv* cmv)
1214{
1215 uea_enters(INS_TO_USBDEV(sc));
1216 if (le16_to_cpu(cmv->wPreamble) != PREAMBLE)
1217 goto bad1;
1218
1219 if (cmv->bDirection != MODEMTOHOST)
1220 goto bad1;
1221
1222 /* FIXME : ADI930 reply wrong preambule (func = 2, sub = 2) to
1223 * the first MEMACESS cmv. Ignore it...
1224 */
1225 if (cmv->bFunction != sc->cmv_function) {
1226 if (UEA_CHIP_VERSION(sc) == ADI930
1227 && cmv->bFunction == MAKEFUNCTION(2, 2)) {
1228 cmv->wIndex = cpu_to_le16(sc->cmv_idx);
1229 put_unaligned(cpu_to_le32(sc->cmv_address), &cmv->dwSymbolicAddress);
1230 cmv->wOffsetAddress = cpu_to_le16(sc->cmv_offset);
1231 }
1232 else
1233 goto bad2;
1234 }
1235
1236 if (cmv->bFunction == MAKEFUNCTION(ADSLDIRECTIVE, MODEMREADY)) {
1237 wake_up_cmv_ack(sc);
1238 return;
1239 }
1240
1241 /* in case of MEMACCESS */
1242 if (le16_to_cpu(cmv->wIndex) != sc->cmv_idx ||
1243 le32_to_cpu(get_unaligned(&cmv->dwSymbolicAddress)) !=
1244 sc->cmv_address
1245 || le16_to_cpu(cmv->wOffsetAddress) != sc->cmv_offset)
1246 goto bad2;
1247
1248 sc->data = le32_to_cpu(get_unaligned(&cmv->dwData));
1249 sc->data = sc->data << 16 | sc->data >> 16;
1250
1251 wake_up_cmv_ack(sc);
1252 return;
1253
1254bad2:
1255 uea_err(INS_TO_USBDEV(sc), "unexpected cmv received,"
1256 "Function : %d, Subfunction : %d\n",
1257 FUNCTION_TYPE(cmv->bFunction),
1258 FUNCTION_SUBTYPE(cmv->bFunction));
1259 return;
1260
1261bad1:
1262 uea_err(INS_TO_USBDEV(sc), "invalid cmv received, "
1263 "wPreamble %d, bDirection %d\n",
1264 le16_to_cpu(cmv->wPreamble), cmv->bDirection);
1265}
1266
1267/*
1268 * interrupt handler
1269 */
1270static void uea_intr(struct urb *urb, struct pt_regs *regs)
1271{
1272 struct uea_softc *sc = (struct uea_softc *)urb->context;
1273 struct intr_pkt *intr;
1274 uea_enters(INS_TO_USBDEV(sc));
1275
1276 if (urb->status < 0) {
1277 uea_err(INS_TO_USBDEV(sc), "uea_intr() failed with %d\n",
1278 urb->status);
1279 return;
1280 }
1281
1282 intr = (struct intr_pkt *) urb->transfer_buffer;
1283
1284 /* device-to-host interrupt */
1285 if (intr->bType != 0x08 || sc->booting) {
1286 uea_err(INS_TO_USBDEV(sc), "wrong intr\n");
1287 // rebooting ?
1288 // sc->reset = 1;
1289 goto resubmit;
1290 }
1291
1292 switch (le16_to_cpu(intr->wInterrupt)) {
1293 case INT_LOADSWAPPAGE:
1294 sc->pageno = intr->bSwapPageNo;
1295 sc->ovl = intr->bOvl >> 4 | intr->bOvl << 4;
1296 schedule_work(&sc->task);
1297 break;
1298
1299 case INT_INCOMINGCMV:
1300 uea_dispatch_cmv(sc, &intr->u.s2.cmv);
1301 break;
1302
1303 default:
1304 uea_err(INS_TO_USBDEV(sc), "unknown intr %u\n",
1305 le16_to_cpu(intr->wInterrupt));
1306 }
1307
1308resubmit:
1309 usb_submit_urb(sc->urb_int, GFP_ATOMIC);
1310}
1311
1312/*
1313 * Start the modem : init the data and start kernel thread
1314 */
1315static int uea_boot(struct uea_softc *sc)
1316{
1317 int ret;
1318 struct intr_pkt *intr;
1319
1320 uea_enters(INS_TO_USBDEV(sc));
1321
1322 INIT_WORK(&sc->task, uea_load_page, sc);
1323 init_waitqueue_head(&sc->sync_q);
1324 init_waitqueue_head(&sc->cmv_ack_wait);
1325
1326 if (UEA_CHIP_VERSION(sc) == ADI930)
1327 load_XILINX_firmware(sc);
1328
1329 intr = kmalloc(INTR_PKT_SIZE, GFP_KERNEL);
1330 if (!intr) {
1331 uea_err(INS_TO_USBDEV(sc),
1332 "cannot allocate interrupt package\n");
1333 uea_leaves(INS_TO_USBDEV(sc));
1334 return -ENOMEM;
1335 }
1336
1337 sc->urb_int = usb_alloc_urb(0, GFP_KERNEL);
1338 if (!sc->urb_int) {
1339 uea_err(INS_TO_USBDEV(sc), "cannot allocate interrupt URB\n");
1340 goto err;
1341 }
1342
1343 usb_fill_int_urb(sc->urb_int, sc->usb_dev,
1344 usb_rcvintpipe(sc->usb_dev, UEA_INTR_PIPE),
1345 intr, INTR_PKT_SIZE, uea_intr, sc,
1346 sc->usb_dev->actconfig->interface[0]->altsetting[0].
1347 endpoint[0].desc.bInterval);
1348
1349 ret = usb_submit_urb(sc->urb_int, GFP_KERNEL);
1350 if (ret < 0) {
1351 uea_err(INS_TO_USBDEV(sc),
1352 "urb submition failed with error %d\n", ret);
1353 goto err1;
1354 }
1355
1356 sc->kthread = kthread_run(uea_kthread, sc, "ueagle-atm");
1357 if (sc->kthread == ERR_PTR(-ENOMEM)) {
1358 uea_err(INS_TO_USBDEV(sc), "failed to create thread\n");
1359 goto err2;
1360 }
1361
1362 uea_leaves(INS_TO_USBDEV(sc));
1363 return 0;
1364
1365err2:
1366 usb_kill_urb(sc->urb_int);
1367err1:
1368 kfree(intr);
1369err:
1370 usb_free_urb(sc->urb_int);
1371 uea_leaves(INS_TO_USBDEV(sc));
1372 return -ENOMEM;
1373}
1374
1375/*
1376 * Stop the modem : kill kernel thread and free data
1377 */
1378static void uea_stop(struct uea_softc *sc)
1379{
1380 int ret;
1381 uea_enters(INS_TO_USBDEV(sc));
1382 ret = kthread_stop(sc->kthread);
1383 uea_info(INS_TO_USBDEV(sc), "kthread finish with status %d\n", ret);
1384
1385 /* stop any pending boot process */
1386 flush_scheduled_work();
1387
1388 uea_request(sc, UEA_SET_MODE, UEA_LOOPBACK_ON, 0, NULL);
1389
1390 usb_kill_urb(sc->urb_int);
1391 kfree(sc->urb_int->transfer_buffer);
1392 usb_free_urb(sc->urb_int);
1393
1394 if (sc->dsp_firm)
1395 release_firmware(sc->dsp_firm);
1396 uea_leaves(INS_TO_USBDEV(sc));
1397}
1398
1399/* syfs interface */
1400static struct uea_softc *dev_to_uea(struct device *dev)
1401{
1402 struct usb_interface *intf;
1403 struct usbatm_data *usbatm;
1404
1405 intf = to_usb_interface(dev);
1406 if (!intf)
1407 return NULL;
1408
1409 usbatm = usb_get_intfdata(intf);
1410 if (!usbatm)
1411 return NULL;
1412
1413 return usbatm->driver_data;
1414}
1415
1416static ssize_t read_status(struct device *dev, struct device_attribute *attr,
1417 char *buf)
1418{
1419 int ret = -ENODEV;
1420 struct uea_softc *sc;
1421
ab3c81ff 1422 mutex_lock(&uea_mutex);
b72458a8 1423 sc = dev_to_uea(dev);
1424 if (!sc)
1425 goto out;
1426 ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.state);
1427out:
ab3c81ff 1428 mutex_unlock(&uea_mutex);
b72458a8 1429 return ret;
1430}
1431
1432static ssize_t reboot(struct device *dev, struct device_attribute *attr,
1433 const char *buf, size_t count)
1434{
1435 int ret = -ENODEV;
1436 struct uea_softc *sc;
1437
ab3c81ff 1438 mutex_lock(&uea_mutex);
b72458a8 1439 sc = dev_to_uea(dev);
1440 if (!sc)
1441 goto out;
1442 sc->reset = 1;
1443 ret = count;
1444out:
ab3c81ff 1445 mutex_unlock(&uea_mutex);
b72458a8 1446 return ret;
1447}
1448
1449static DEVICE_ATTR(stat_status, S_IWUGO | S_IRUGO, read_status, reboot);
1450
1451static ssize_t read_human_status(struct device *dev, struct device_attribute *attr,
1452 char *buf)
1453{
1454 int ret = -ENODEV;
1455 struct uea_softc *sc;
1456
ab3c81ff 1457 mutex_lock(&uea_mutex);
b72458a8 1458 sc = dev_to_uea(dev);
1459 if (!sc)
1460 goto out;
1461
1462 switch (GET_STATUS(sc->stats.phy.state)) {
1463 case 0:
1464 ret = sprintf(buf, "Modem is booting\n");
1465 break;
1466 case 1:
1467 ret = sprintf(buf, "Modem is initializing\n");
1468 break;
1469 case 2:
1470 ret = sprintf(buf, "Modem is operational\n");
1471 break;
1472 default:
1473 ret = sprintf(buf, "Modem synchronization failed\n");
1474 break;
1475 }
1476out:
ab3c81ff 1477 mutex_unlock(&uea_mutex);
b72458a8 1478 return ret;
1479}
1480
1481static DEVICE_ATTR(stat_human_status, S_IWUGO | S_IRUGO, read_human_status, NULL);
1482
1483static ssize_t read_delin(struct device *dev, struct device_attribute *attr,
1484 char *buf)
1485{
1486 int ret = -ENODEV;
1487 struct uea_softc *sc;
1488
ab3c81ff 1489 mutex_lock(&uea_mutex);
b72458a8 1490 sc = dev_to_uea(dev);
1491 if (!sc)
1492 goto out;
1493
1494 if (sc->stats.phy.flags & 0x0C00)
1495 ret = sprintf(buf, "ERROR\n");
1496 else if (sc->stats.phy.flags & 0x0030)
1497 ret = sprintf(buf, "LOSS\n");
1498 else
1499 ret = sprintf(buf, "GOOD\n");
1500out:
ab3c81ff 1501 mutex_unlock(&uea_mutex);
b72458a8 1502 return ret;
1503}
1504
1505static DEVICE_ATTR(stat_delin, S_IWUGO | S_IRUGO, read_delin, NULL);
1506
1507#define UEA_ATTR(name, reset) \
1508 \
1509static ssize_t read_##name(struct device *dev, \
1510 struct device_attribute *attr, char *buf) \
1511{ \
1512 int ret = -ENODEV; \
1513 struct uea_softc *sc; \
1514 \
ab3c81ff 1515 mutex_lock(&uea_mutex); \
b72458a8 1516 sc = dev_to_uea(dev); \
1517 if (!sc) \
1518 goto out; \
1519 ret = snprintf(buf, 10, "%08x\n", sc->stats.phy.name); \
1520 if (reset) \
1521 sc->stats.phy.name = 0; \
1522out: \
ab3c81ff 1523 mutex_unlock(&uea_mutex); \
b72458a8 1524 return ret; \
1525} \
1526 \
1527static DEVICE_ATTR(stat_##name, S_IRUGO, read_##name, NULL)
1528
1529UEA_ATTR(mflags, 1);
1530UEA_ATTR(vidcpe, 0);
1531UEA_ATTR(usrate, 0);
1532UEA_ATTR(dsrate, 0);
1533UEA_ATTR(usattenuation, 0);
1534UEA_ATTR(dsattenuation, 0);
1535UEA_ATTR(usmargin, 0);
1536UEA_ATTR(dsmargin, 0);
1537UEA_ATTR(txflow, 0);
1538UEA_ATTR(rxflow, 0);
1539UEA_ATTR(uscorr, 0);
1540UEA_ATTR(dscorr, 0);
1541UEA_ATTR(usunc, 0);
1542UEA_ATTR(dsunc, 0);
1543
1544/* Retrieve the device End System Identifier (MAC) */
1545
1546#define htoi(x) (isdigit(x) ? x-'0' : toupper(x)-'A'+10)
1547static int uea_getesi(struct uea_softc *sc, u_char * esi)
1548{
1549 unsigned char mac_str[2 * ETH_ALEN + 1];
1550 int i;
1551 if (usb_string
1552 (sc->usb_dev, sc->usb_dev->descriptor.iSerialNumber, mac_str,
1553 sizeof(mac_str)) != 2 * ETH_ALEN)
1554 return 1;
1555
1556 for (i = 0; i < ETH_ALEN; i++)
1557 esi[i] = htoi(mac_str[2 * i]) * 16 + htoi(mac_str[2 * i + 1]);
1558
1559 return 0;
1560}
1561
1562/* ATM stuff */
1563static int uea_atm_open(struct usbatm_data *usbatm, struct atm_dev *atm_dev)
1564{
1565 struct uea_softc *sc = usbatm->driver_data;
1566
1567 return uea_getesi(sc, atm_dev->esi);
1568}
1569
1570static int uea_heavy(struct usbatm_data *usbatm, struct usb_interface *intf)
1571{
1572 struct uea_softc *sc = usbatm->driver_data;
1573
1574 wait_event(sc->sync_q, IS_OPERATIONAL(sc));
1575
1576 return 0;
1577
1578}
1579
1580static int claim_interface(struct usb_device *usb_dev,
1581 struct usbatm_data *usbatm, int ifnum)
1582{
1583 int ret;
1584 struct usb_interface *intf = usb_ifnum_to_if(usb_dev, ifnum);
1585
1586 if (!intf) {
1587 uea_err(usb_dev, "interface %d not found\n", ifnum);
1588 return -ENODEV;
1589 }
1590
1591 ret = usb_driver_claim_interface(&uea_driver, intf, usbatm);
1592 if (ret != 0)
1593 uea_err(usb_dev, "can't claim interface %d, error %d\n", ifnum,
1594 ret);
1595 return ret;
1596}
1597
1598static void create_fs_entries(struct uea_softc *sc, struct usb_interface *intf)
1599{
1600 /* sysfs interface */
1601 device_create_file(&intf->dev, &dev_attr_stat_status);
1602 device_create_file(&intf->dev, &dev_attr_stat_mflags);
1603 device_create_file(&intf->dev, &dev_attr_stat_human_status);
1604 device_create_file(&intf->dev, &dev_attr_stat_delin);
1605 device_create_file(&intf->dev, &dev_attr_stat_vidcpe);
1606 device_create_file(&intf->dev, &dev_attr_stat_usrate);
1607 device_create_file(&intf->dev, &dev_attr_stat_dsrate);
1608 device_create_file(&intf->dev, &dev_attr_stat_usattenuation);
1609 device_create_file(&intf->dev, &dev_attr_stat_dsattenuation);
1610 device_create_file(&intf->dev, &dev_attr_stat_usmargin);
1611 device_create_file(&intf->dev, &dev_attr_stat_dsmargin);
1612 device_create_file(&intf->dev, &dev_attr_stat_txflow);
1613 device_create_file(&intf->dev, &dev_attr_stat_rxflow);
1614 device_create_file(&intf->dev, &dev_attr_stat_uscorr);
1615 device_create_file(&intf->dev, &dev_attr_stat_dscorr);
1616 device_create_file(&intf->dev, &dev_attr_stat_usunc);
1617 device_create_file(&intf->dev, &dev_attr_stat_dsunc);
1618}
1619
1620static int uea_bind(struct usbatm_data *usbatm, struct usb_interface *intf,
35644b0c 1621 const struct usb_device_id *id)
b72458a8 1622{
1623 struct usb_device *usb = interface_to_usbdev(intf);
1624 struct uea_softc *sc;
1625 int ret, ifnum = intf->altsetting->desc.bInterfaceNumber;
1626
1627 uea_enters(usb);
1628
1629 /* interface 0 is for firmware/monitoring */
1630 if (ifnum != UEA_INTR_IFACE_NO)
1631 return -ENODEV;
1632
0dfcd3e4 1633 usbatm->flags = (sync_wait[modem_index] ? 0 : UDSL_SKIP_HEAVY_INIT);
b72458a8 1634
1635 /* interface 1 is for outbound traffic */
1636 ret = claim_interface(usb, usbatm, UEA_US_IFACE_NO);
1637 if (ret < 0)
1638 return ret;
1639
1640 /* ADI930 has only 2 interfaces and inbound traffic
1641 * is on interface 1
1642 */
1643 if (UEA_CHIP_VERSION(id) != ADI930) {
1644 /* interface 2 is for inbound traffic */
1645 ret = claim_interface(usb, usbatm, UEA_DS_IFACE_NO);
1646 if (ret < 0)
1647 return ret;
1648 }
1649
1650 sc = kzalloc(sizeof(struct uea_softc), GFP_KERNEL);
1651 if (!sc) {
1652 uea_err(INS_TO_USBDEV(sc), "uea_init: not enough memory !\n");
1653 return -ENOMEM;
1654 }
1655
1656 sc->usb_dev = usb;
1657 usbatm->driver_data = sc;
1658 sc->usbatm = usbatm;
1659 sc->modem_index = (modem_index < NB_MODEM) ? modem_index++ : 0;
1660 sc->driver_info = id->driver_info;
1661
1662 ret = uea_boot(sc);
1663 if (ret < 0) {
1664 kfree(sc);
1665 return ret;
1666 }
1667
1668 create_fs_entries(sc, intf);
1669 return 0;
1670}
1671
1672static void destroy_fs_entries(struct uea_softc *sc, struct usb_interface *intf)
1673{
1674 /* sysfs interface */
1675 device_remove_file(&intf->dev, &dev_attr_stat_status);
1676 device_remove_file(&intf->dev, &dev_attr_stat_mflags);
1677 device_remove_file(&intf->dev, &dev_attr_stat_human_status);
1678 device_remove_file(&intf->dev, &dev_attr_stat_delin);
1679 device_remove_file(&intf->dev, &dev_attr_stat_vidcpe);
1680 device_remove_file(&intf->dev, &dev_attr_stat_usrate);
1681 device_remove_file(&intf->dev, &dev_attr_stat_dsrate);
1682 device_remove_file(&intf->dev, &dev_attr_stat_usattenuation);
1683 device_remove_file(&intf->dev, &dev_attr_stat_dsattenuation);
1684 device_remove_file(&intf->dev, &dev_attr_stat_usmargin);
1685 device_remove_file(&intf->dev, &dev_attr_stat_dsmargin);
1686 device_remove_file(&intf->dev, &dev_attr_stat_txflow);
1687 device_remove_file(&intf->dev, &dev_attr_stat_rxflow);
1688 device_remove_file(&intf->dev, &dev_attr_stat_uscorr);
1689 device_remove_file(&intf->dev, &dev_attr_stat_dscorr);
1690 device_remove_file(&intf->dev, &dev_attr_stat_usunc);
1691 device_remove_file(&intf->dev, &dev_attr_stat_dsunc);
1692}
1693
1694static void uea_unbind(struct usbatm_data *usbatm, struct usb_interface *intf)
1695{
1696 struct uea_softc *sc = usbatm->driver_data;
1697
1698 destroy_fs_entries(sc, intf);
1699 uea_stop(sc);
1700 kfree(sc);
1701}
1702
1703static struct usbatm_driver uea_usbatm_driver = {
1704 .driver_name = "ueagle-atm",
b72458a8 1705 .bind = uea_bind,
1706 .atm_start = uea_atm_open,
1707 .unbind = uea_unbind,
1708 .heavy_init = uea_heavy,
80aae7a1
DS		 1709 .bulk_in = UEA_BULK_DATA_PIPE,
1710 .bulk_out = UEA_BULK_DATA_PIPE,
b72458a8 1711};
1712
1713static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id)
1714{
1715 struct usb_device *usb = interface_to_usbdev(intf);
1716
1717 uea_enters(usb);
1718 uea_info(usb, "ADSL device founded vid (%#X) pid (%#X) : %s\n",
1719 le16_to_cpu(usb->descriptor.idVendor),
1720 le16_to_cpu(usb->descriptor.idProduct),
1721 chip_name[UEA_CHIP_VERSION(id)]);
1722
1723 usb_reset_device(usb);
1724
1725 if (UEA_IS_PREFIRM(id))
1726 return uea_load_firmware(usb, UEA_CHIP_VERSION(id));
1727
1728 return usbatm_usb_probe(intf, id, &uea_usbatm_driver);
1729}
1730
1731static void uea_disconnect(struct usb_interface *intf)
1732{
1733 struct usb_device *usb = interface_to_usbdev(intf);
1734 int ifnum = intf->altsetting->desc.bInterfaceNumber;
1735 uea_enters(usb);
1736
1737 /* ADI930 has 2 interfaces and eagle 3 interfaces.
1738 * Pre-firmware device has one interface
1739 */
1740 if (usb->config->desc.bNumInterfaces != 1 && ifnum == 0) {
ab3c81ff 1741 mutex_lock(&uea_mutex);
b72458a8 1742 usbatm_usb_disconnect(intf);
ab3c81ff 1743 mutex_unlock(&uea_mutex);
b72458a8 1744 uea_info(usb, "ADSL device removed\n");
1745 }
1746
1747 uea_leaves(usb);
1748}
1749
1750/*
1751 * List of supported VID/PID
1752 */
1753static const struct usb_device_id uea_ids[] = {
1754 {USB_DEVICE(ELSA_VID, ELSA_PID_PREFIRM), .driver_info = ADI930 | PREFIRM},
1755 {USB_DEVICE(ELSA_VID, ELSA_PID_PSTFIRM), .driver_info = ADI930 | PSTFIRM},
1756 {USB_DEVICE(EAGLE_VID, EAGLE_I_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1757 {USB_DEVICE(EAGLE_VID, EAGLE_I_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1758 {USB_DEVICE(EAGLE_VID, EAGLE_II_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
1759 {USB_DEVICE(EAGLE_VID, EAGLE_II_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
1760 {USB_DEVICE(EAGLE_VID, EAGLE_IIC_PID_PREFIRM), .driver_info = EAGLE_II | PREFIRM},
1761 {USB_DEVICE(EAGLE_VID, EAGLE_IIC_PID_PSTFIRM), .driver_info = EAGLE_II | PSTFIRM},
1762 {USB_DEVICE(EAGLE_VID, EAGLE_III_PID_PREFIRM), .driver_info = EAGLE_III | PREFIRM},
1763 {USB_DEVICE(EAGLE_VID, EAGLE_III_PID_PSTFIRM), .driver_info = EAGLE_III | PSTFIRM},
1764 {USB_DEVICE(USR_VID, MILLER_A_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1765 {USB_DEVICE(USR_VID, MILLER_A_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1766 {USB_DEVICE(USR_VID, MILLER_B_PID_PREFIRM), .driver_info = EAGLE_I | PREFIRM},
1767 {USB_DEVICE(USR_VID, MILLER_B_PID_PSTFIRM), .driver_info = EAGLE_I | PSTFIRM},
1768 {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM},
1769 {USB_DEVICE(USR_VID, HEINEKEN_A_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM},
1770 {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PREFIRM),.driver_info = EAGLE_I | PREFIRM},
1771 {USB_DEVICE(USR_VID, HEINEKEN_B_PID_PSTFIRM),.driver_info = EAGLE_I | PSTFIRM},
1772 {}
1773};
1774
1775/*
1776 * USB driver descriptor
1777 */
1778static struct usb_driver uea_driver = {
b72458a8 1779 .name = "ueagle-atm",
1780 .id_table = uea_ids,
1781 .probe = uea_probe,
1782 .disconnect = uea_disconnect,
1783};
1784
1785MODULE_DEVICE_TABLE(usb, uea_ids);
1786
1787/**
1788 * uea_init - Initialize the module.
1789 * Register to USB subsystem
1790 */
1791static int __init uea_init(void)
1792{
1793 printk(KERN_INFO "[ueagle-atm] driver " EAGLEUSBVERSION " loaded\n");
1794
1795 usb_register(&uea_driver);
1796
1797 return 0;
1798}
1799
1800module_init(uea_init);
1801
1802/**
1803 * uea_exit - Destroy module
1804 * Deregister with USB subsystem
1805 */
1806static void __exit uea_exit(void)
1807{
1808 /*
1809 * This calls automatically the uea_disconnect method if necessary:
1810 */
1811 usb_deregister(&uea_driver);
1812
1813 printk(KERN_INFO "[ueagle-atm] driver unloaded\n");
1814}
1815
1816module_exit(uea_exit);
1817
1818MODULE_AUTHOR("Damien Bergamini/Matthieu Castet/Stanislaw W. Gruszka");
1819MODULE_DESCRIPTION("ADI 930/Eagle USB ADSL Modem driver");
1820MODULE_LICENSE("Dual BSD/GPL");
Linux kernel - Deliverables
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