1 // SPDX-License-Identifier: GPL-2.0+
2 /******************************************************************************
3 * cxacru.c - driver for USB ADSL modems based on
4 * Conexant AccessRunner chipset
6 * Copyright (C) 2004 David Woodhouse, Duncan Sands, Roman Kagan
7 * Copyright (C) 2005 Duncan Sands, Roman Kagan (rkagan % mail ! ru)
8 * Copyright (C) 2007 Simon Arlott
9 * Copyright (C) 2009 Simon Arlott
10 ******************************************************************************/
13 * Credit is due for Josep Comas, who created the original patch to speedtch.c
14 * to support the different padding used by the AccessRunner (now generalized
15 * into usbatm), and the userspace firmware loading utility.
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/kernel.h>
21 #include <linux/timer.h>
22 #include <linux/errno.h>
23 #include <linux/slab.h>
24 #include <linux/device.h>
25 #include <linux/firmware.h>
26 #include <linux/mutex.h>
27 #include <asm/unaligned.h>
31 #define DRIVER_AUTHOR "Roman Kagan, David Woodhouse, Duncan Sands, Simon Arlott"
32 #define DRIVER_DESC "Conexant AccessRunner ADSL USB modem driver"
34 static const char cxacru_driver_name
[] = "cxacru";
36 #define CXACRU_EP_CMD 0x01 /* Bulk/interrupt in/out */
37 #define CXACRU_EP_DATA 0x02 /* Bulk in/out */
39 #define CMD_PACKET_SIZE 64 /* Should be maxpacket(ep)? */
40 #define CMD_MAX_CONFIG ((CMD_PACKET_SIZE / 4 - 1) / 2)
43 #define PLLFCLK_ADDR 0x00350068
44 #define PLLBCLK_ADDR 0x0035006c
45 #define SDRAMEN_ADDR 0x00350010
46 #define FW_ADDR 0x00801000
47 #define BR_ADDR 0x00180600
48 #define SIG_ADDR 0x00180500
49 #define BR_STACK_ADDR 0x00187f10
54 #define CMD_TIMEOUT 2000 /* msecs */
55 #define POLL_INTERVAL 1 /* secs */
57 /* commands for interaction with the modem through the control channel before
58 * firmware is loaded */
59 enum cxacru_fw_request
{
69 /* commands for interaction with the modem through the control channel once
70 * firmware is loaded */
71 enum cxacru_cm_request
{
72 CM_REQUEST_UNDEFINED
= 0x80,
74 CM_REQUEST_CHIP_GET_MAC_ADDRESS
,
75 CM_REQUEST_CHIP_GET_DP_VERSIONS
,
76 CM_REQUEST_CHIP_ADSL_LINE_START
,
77 CM_REQUEST_CHIP_ADSL_LINE_STOP
,
78 CM_REQUEST_CHIP_ADSL_LINE_GET_STATUS
,
79 CM_REQUEST_CHIP_ADSL_LINE_GET_SPEED
,
80 CM_REQUEST_CARD_INFO_GET
,
81 CM_REQUEST_CARD_DATA_GET
,
82 CM_REQUEST_CARD_DATA_SET
,
83 CM_REQUEST_COMMAND_HW_IO
,
84 CM_REQUEST_INTERFACE_HW_IO
,
85 CM_REQUEST_CARD_SERIAL_DATA_PATH_GET
,
86 CM_REQUEST_CARD_SERIAL_DATA_PATH_SET
,
87 CM_REQUEST_CARD_CONTROLLER_VERSION_GET
,
88 CM_REQUEST_CARD_GET_STATUS
,
89 CM_REQUEST_CARD_GET_MAC_ADDRESS
,
90 CM_REQUEST_CARD_GET_DATA_LINK_STATUS
,
94 /* commands for interaction with the flash memory
96 * read: response is the contents of the first 60 bytes of flash memory
97 * write: request contains the 60 bytes of data to write to flash memory
98 * response is the contents of the first 60 bytes of flash memory
100 * layout: PP PP VV VV MM MM MM MM MM MM ?? ?? SS SS SS SS SS SS SS SS
101 * SS SS SS SS SS SS SS SS 00 00 00 00 00 00 00 00 00 00 00 00
102 * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
104 * P: le16 USB Product ID
105 * V: le16 USB Vendor ID
106 * M: be48 MAC Address
107 * S: le16 ASCII Serial Number
109 enum cxacru_cm_flash
{
110 CM_FLASH_READ
= 0xa1,
111 CM_FLASH_WRITE
= 0xa2
114 /* reply codes to the commands above */
115 enum cxacru_cm_status
{
119 CM_STATUS_UNSUPPORTED
,
120 CM_STATUS_UNIMPLEMENTED
,
121 CM_STATUS_PARAMETER_ERROR
,
122 CM_STATUS_DBG_LOOPBACK
,
126 /* indices into CARD_INFO_GET return array */
127 enum cxacru_info_idx
{
128 CXINF_DOWNSTREAM_RATE
,
132 CXINF_MAC_ADDRESS_HIGH
,
133 CXINF_MAC_ADDRESS_LOW
,
134 CXINF_UPSTREAM_SNR_MARGIN
,
135 CXINF_DOWNSTREAM_SNR_MARGIN
,
136 CXINF_UPSTREAM_ATTENUATION
,
137 CXINF_DOWNSTREAM_ATTENUATION
,
138 CXINF_TRANSMITTER_POWER
,
139 CXINF_UPSTREAM_BITS_PER_FRAME
,
140 CXINF_DOWNSTREAM_BITS_PER_FRAME
,
141 CXINF_STARTUP_ATTEMPTS
,
142 CXINF_UPSTREAM_CRC_ERRORS
,
143 CXINF_DOWNSTREAM_CRC_ERRORS
,
144 CXINF_UPSTREAM_FEC_ERRORS
,
145 CXINF_DOWNSTREAM_FEC_ERRORS
,
146 CXINF_UPSTREAM_HEC_ERRORS
,
147 CXINF_DOWNSTREAM_HEC_ERRORS
,
148 CXINF_LINE_STARTABLE
,
151 CXINF_ADSL_HEADEND_ENVIRONMENT
,
152 CXINF_CONTROLLER_VERSION
,
153 /* dunno what the missing two mean */
157 enum cxacru_poll_state
{
164 struct cxacru_modem_type
{
171 struct usbatm_data
*usbatm
;
173 const struct cxacru_modem_type
*modem_type
;
176 struct mutex adsl_state_serialize
;
178 struct delayed_work poll_work
;
179 u32 card_info
[CXINF_MAX
];
180 struct mutex poll_state_serialize
;
181 enum cxacru_poll_state poll_state
;
184 struct mutex cm_serialize
;
189 struct completion rcv_done
;
190 struct completion snd_done
;
193 static int cxacru_cm(struct cxacru_data
*instance
, enum cxacru_cm_request cm
,
194 u8
*wdata
, int wsize
, u8
*rdata
, int rsize
);
195 static void cxacru_poll_status(struct work_struct
*work
);
197 /* Card info exported through sysfs */
198 #define CXACRU__ATTR_INIT(_name) \
199 static DEVICE_ATTR_RO(_name)
201 #define CXACRU_CMD_INIT(_name) \
202 static DEVICE_ATTR_RW(_name)
204 #define CXACRU_SET_INIT(_name) \
205 static DEVICE_ATTR_WO(_name)
207 #define CXACRU_ATTR_INIT(_value, _type, _name) \
208 static ssize_t _name##_show(struct device *dev, \
209 struct device_attribute *attr, char *buf) \
211 struct cxacru_data *instance = to_usbatm_driver_data(\
212 to_usb_interface(dev)); \
214 if (instance == NULL) \
217 return cxacru_sysfs_showattr_##_type(instance->card_info[_value], buf); \
219 CXACRU__ATTR_INIT(_name)
221 #define CXACRU_ATTR_CREATE(_v, _t, _name) CXACRU_DEVICE_CREATE_FILE(_name)
222 #define CXACRU_CMD_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
223 #define CXACRU_SET_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
224 #define CXACRU__ATTR_CREATE(_name) CXACRU_DEVICE_CREATE_FILE(_name)
226 #define CXACRU_ATTR_REMOVE(_v, _t, _name) CXACRU_DEVICE_REMOVE_FILE(_name)
227 #define CXACRU_CMD_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
228 #define CXACRU_SET_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
229 #define CXACRU__ATTR_REMOVE(_name) CXACRU_DEVICE_REMOVE_FILE(_name)
231 static ssize_t
cxacru_sysfs_showattr_u32(u32 value
, char *buf
)
233 return snprintf(buf
, PAGE_SIZE
, "%u\n", value
);
236 static ssize_t
cxacru_sysfs_showattr_s8(s8 value
, char *buf
)
238 return snprintf(buf
, PAGE_SIZE
, "%d\n", value
);
241 static ssize_t
cxacru_sysfs_showattr_dB(s16 value
, char *buf
)
243 if (likely(value
>= 0)) {
244 return snprintf(buf
, PAGE_SIZE
, "%u.%02u\n",
245 value
/ 100, value
% 100);
248 return snprintf(buf
, PAGE_SIZE
, "-%u.%02u\n",
249 value
/ 100, value
% 100);
253 static ssize_t
cxacru_sysfs_showattr_bool(u32 value
, char *buf
)
255 static char *str
[] = { "no", "yes" };
257 if (unlikely(value
>= ARRAY_SIZE(str
)))
258 return snprintf(buf
, PAGE_SIZE
, "%u\n", value
);
259 return snprintf(buf
, PAGE_SIZE
, "%s\n", str
[value
]);
262 static ssize_t
cxacru_sysfs_showattr_LINK(u32 value
, char *buf
)
264 static char *str
[] = { NULL
, "not connected", "connected", "lost" };
266 if (unlikely(value
>= ARRAY_SIZE(str
) || str
[value
] == NULL
))
267 return snprintf(buf
, PAGE_SIZE
, "%u\n", value
);
268 return snprintf(buf
, PAGE_SIZE
, "%s\n", str
[value
]);
271 static ssize_t
cxacru_sysfs_showattr_LINE(u32 value
, char *buf
)
273 static char *str
[] = { "down", "attempting to activate",
274 "training", "channel analysis", "exchange", "up",
275 "waiting", "initialising"
277 if (unlikely(value
>= ARRAY_SIZE(str
)))
278 return snprintf(buf
, PAGE_SIZE
, "%u\n", value
);
279 return snprintf(buf
, PAGE_SIZE
, "%s\n", str
[value
]);
282 static ssize_t
cxacru_sysfs_showattr_MODU(u32 value
, char *buf
)
284 static char *str
[] = {
287 "ITU-T G.992.1 (G.DMT)",
288 "ITU-T G.992.2 (G.LITE)"
290 if (unlikely(value
>= ARRAY_SIZE(str
)))
291 return snprintf(buf
, PAGE_SIZE
, "%u\n", value
);
292 return snprintf(buf
, PAGE_SIZE
, "%s\n", str
[value
]);
296 * This could use MAC_ADDRESS_HIGH and MAC_ADDRESS_LOW, but since
297 * this data is already in atm_dev there's no point.
299 * MAC_ADDRESS_HIGH = 0x????5544
300 * MAC_ADDRESS_LOW = 0x33221100
301 * Where 00-55 are bytes 0-5 of the MAC.
303 static ssize_t
mac_address_show(struct device
*dev
,
304 struct device_attribute
*attr
, char *buf
)
306 struct cxacru_data
*instance
= to_usbatm_driver_data(
307 to_usb_interface(dev
));
309 if (instance
== NULL
|| instance
->usbatm
->atm_dev
== NULL
)
312 return snprintf(buf
, PAGE_SIZE
, "%pM\n",
313 instance
->usbatm
->atm_dev
->esi
);
316 static ssize_t
adsl_state_show(struct device
*dev
,
317 struct device_attribute
*attr
, char *buf
)
319 static char *str
[] = { "running", "stopped" };
320 struct cxacru_data
*instance
= to_usbatm_driver_data(
321 to_usb_interface(dev
));
324 if (instance
== NULL
)
327 value
= instance
->card_info
[CXINF_LINE_STARTABLE
];
328 if (unlikely(value
>= ARRAY_SIZE(str
)))
329 return snprintf(buf
, PAGE_SIZE
, "%u\n", value
);
330 return snprintf(buf
, PAGE_SIZE
, "%s\n", str
[value
]);
333 static ssize_t
adsl_state_store(struct device
*dev
,
334 struct device_attribute
*attr
, const char *buf
, size_t count
)
336 struct cxacru_data
*instance
= to_usbatm_driver_data(
337 to_usb_interface(dev
));
341 int len
= strlen(buf
);
343 if (!capable(CAP_NET_ADMIN
))
346 ret
= sscanf(buf
, "%7s", str_cmd
);
351 if (instance
== NULL
)
354 if (mutex_lock_interruptible(&instance
->adsl_state_serialize
))
357 if (!strcmp(str_cmd
, "stop") || !strcmp(str_cmd
, "restart")) {
358 ret
= cxacru_cm(instance
, CM_REQUEST_CHIP_ADSL_LINE_STOP
, NULL
, 0, NULL
, 0);
360 atm_err(instance
->usbatm
, "change adsl state:"
361 " CHIP_ADSL_LINE_STOP returned %d\n", ret
);
366 poll
= CXPOLL_STOPPED
;
370 /* Line status is only updated every second
371 * and the device appears to only react to
372 * START/STOP every second too. Wait 1.5s to
373 * be sure that restart will have an effect. */
374 if (!strcmp(str_cmd
, "restart"))
377 if (!strcmp(str_cmd
, "start") || !strcmp(str_cmd
, "restart")) {
378 ret
= cxacru_cm(instance
, CM_REQUEST_CHIP_ADSL_LINE_START
, NULL
, 0, NULL
, 0);
380 atm_err(instance
->usbatm
, "change adsl state:"
381 " CHIP_ADSL_LINE_START returned %d\n", ret
);
386 poll
= CXPOLL_POLLING
;
390 if (!strcmp(str_cmd
, "poll")) {
392 poll
= CXPOLL_POLLING
;
400 if (poll
== CXPOLL_POLLING
) {
401 mutex_lock(&instance
->poll_state_serialize
);
402 switch (instance
->poll_state
) {
405 instance
->poll_state
= CXPOLL_POLLING
;
408 case CXPOLL_STOPPING
:
409 /* abort stop request */
410 instance
->poll_state
= CXPOLL_POLLING
;
413 case CXPOLL_SHUTDOWN
:
414 /* don't start polling */
417 mutex_unlock(&instance
->poll_state_serialize
);
418 } else if (poll
== CXPOLL_STOPPED
) {
419 mutex_lock(&instance
->poll_state_serialize
);
421 if (instance
->poll_state
== CXPOLL_POLLING
)
422 instance
->poll_state
= CXPOLL_STOPPING
;
423 mutex_unlock(&instance
->poll_state_serialize
);
426 mutex_unlock(&instance
->adsl_state_serialize
);
428 if (poll
== CXPOLL_POLLING
)
429 cxacru_poll_status(&instance
->poll_work
.work
);
434 /* CM_REQUEST_CARD_DATA_GET times out, so no show attribute */
436 static ssize_t
adsl_config_store(struct device
*dev
,
437 struct device_attribute
*attr
, const char *buf
, size_t count
)
439 struct cxacru_data
*instance
= to_usbatm_driver_data(
440 to_usb_interface(dev
));
441 int len
= strlen(buf
);
443 __le32 data
[CMD_PACKET_SIZE
/ 4];
445 if (!capable(CAP_NET_ADMIN
))
448 if (instance
== NULL
)
458 ret
= sscanf(buf
+ pos
, "%x=%x%n", &index
, &value
, &tmp
);
463 if (tmp
< 0 || tmp
> len
- pos
)
467 /* skip trailing newline */
468 if (buf
[pos
] == '\n' && pos
== len
-1)
471 data
[num
* 2 + 1] = cpu_to_le32(index
);
472 data
[num
* 2 + 2] = cpu_to_le32(value
);
475 /* send config values when data buffer is full
478 if (pos
>= len
|| num
>= CMD_MAX_CONFIG
) {
479 char log
[CMD_MAX_CONFIG
* 12 + 1]; /* %02x=%08x */
481 data
[0] = cpu_to_le32(num
);
482 ret
= cxacru_cm(instance
, CM_REQUEST_CARD_DATA_SET
,
483 (u8
*) data
, 4 + num
* 8, NULL
, 0);
485 atm_err(instance
->usbatm
,
486 "set card data returned %d\n", ret
);
490 for (tmp
= 0; tmp
< num
; tmp
++)
491 snprintf(log
+ tmp
*12, 13, " %02x=%08x",
492 le32_to_cpu(data
[tmp
* 2 + 1]),
493 le32_to_cpu(data
[tmp
* 2 + 2]));
494 atm_info(instance
->usbatm
, "config%s\n", log
);
503 * All device attributes are included in CXACRU_ALL_FILES
504 * so that the same list can be used multiple times:
505 * INIT (define the device attributes)
506 * CREATE (create all the device files)
507 * REMOVE (remove all the device files)
509 * With the last two being defined as needed in the functions
510 * they are used in before calling CXACRU_ALL_FILES()
512 #define CXACRU_ALL_FILES(_action) \
513 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_RATE, u32, downstream_rate); \
514 CXACRU_ATTR_##_action(CXINF_UPSTREAM_RATE, u32, upstream_rate); \
515 CXACRU_ATTR_##_action(CXINF_LINK_STATUS, LINK, link_status); \
516 CXACRU_ATTR_##_action(CXINF_LINE_STATUS, LINE, line_status); \
517 CXACRU__ATTR_##_action( mac_address); \
518 CXACRU_ATTR_##_action(CXINF_UPSTREAM_SNR_MARGIN, dB, upstream_snr_margin); \
519 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_SNR_MARGIN, dB, downstream_snr_margin); \
520 CXACRU_ATTR_##_action(CXINF_UPSTREAM_ATTENUATION, dB, upstream_attenuation); \
521 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_ATTENUATION, dB, downstream_attenuation); \
522 CXACRU_ATTR_##_action(CXINF_TRANSMITTER_POWER, s8, transmitter_power); \
523 CXACRU_ATTR_##_action(CXINF_UPSTREAM_BITS_PER_FRAME, u32, upstream_bits_per_frame); \
524 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_BITS_PER_FRAME, u32, downstream_bits_per_frame); \
525 CXACRU_ATTR_##_action(CXINF_STARTUP_ATTEMPTS, u32, startup_attempts); \
526 CXACRU_ATTR_##_action(CXINF_UPSTREAM_CRC_ERRORS, u32, upstream_crc_errors); \
527 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_CRC_ERRORS, u32, downstream_crc_errors); \
528 CXACRU_ATTR_##_action(CXINF_UPSTREAM_FEC_ERRORS, u32, upstream_fec_errors); \
529 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_FEC_ERRORS, u32, downstream_fec_errors); \
530 CXACRU_ATTR_##_action(CXINF_UPSTREAM_HEC_ERRORS, u32, upstream_hec_errors); \
531 CXACRU_ATTR_##_action(CXINF_DOWNSTREAM_HEC_ERRORS, u32, downstream_hec_errors); \
532 CXACRU_ATTR_##_action(CXINF_LINE_STARTABLE, bool, line_startable); \
533 CXACRU_ATTR_##_action(CXINF_MODULATION, MODU, modulation); \
534 CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND, u32, adsl_headend); \
535 CXACRU_ATTR_##_action(CXINF_ADSL_HEADEND_ENVIRONMENT, u32, adsl_headend_environment); \
536 CXACRU_ATTR_##_action(CXINF_CONTROLLER_VERSION, u32, adsl_controller_version); \
537 CXACRU_CMD_##_action( adsl_state); \
538 CXACRU_SET_##_action( adsl_config);
540 CXACRU_ALL_FILES(INIT
);
542 /* the following three functions are stolen from drivers/usb/core/message.c */
543 static void cxacru_blocking_completion(struct urb
*urb
)
545 complete(urb
->context
);
548 struct cxacru_timer
{
549 struct timer_list timer
;
553 static void cxacru_timeout_kill(struct timer_list
*t
)
555 struct cxacru_timer
*timer
= from_timer(timer
, t
, timer
);
557 usb_unlink_urb(timer
->urb
);
560 static int cxacru_start_wait_urb(struct urb
*urb
, struct completion
*done
,
563 struct cxacru_timer timer
= {
567 timer_setup_on_stack(&timer
.timer
, cxacru_timeout_kill
, 0);
568 mod_timer(&timer
.timer
, jiffies
+ msecs_to_jiffies(CMD_TIMEOUT
));
569 wait_for_completion(done
);
570 del_timer_sync(&timer
.timer
);
571 destroy_timer_on_stack(&timer
.timer
);
574 *actual_length
= urb
->actual_length
;
575 return urb
->status
; /* must read status after completion */
578 static int cxacru_cm(struct cxacru_data
*instance
, enum cxacru_cm_request cm
,
579 u8
*wdata
, int wsize
, u8
*rdata
, int rsize
)
583 const int stride
= CMD_PACKET_SIZE
- 4;
584 u8
*wbuf
= instance
->snd_buf
;
585 u8
*rbuf
= instance
->rcv_buf
;
586 int wbuflen
= ((wsize
- 1) / stride
+ 1) * CMD_PACKET_SIZE
;
587 int rbuflen
= ((rsize
- 1) / stride
+ 1) * CMD_PACKET_SIZE
;
589 if (wbuflen
> PAGE_SIZE
|| rbuflen
> PAGE_SIZE
) {
590 if (printk_ratelimit())
591 usb_err(instance
->usbatm
, "requested transfer size too large (%d, %d)\n",
597 mutex_lock(&instance
->cm_serialize
);
599 /* submit reading urb before the writing one */
600 init_completion(&instance
->rcv_done
);
601 ret
= usb_submit_urb(instance
->rcv_urb
, GFP_KERNEL
);
603 if (printk_ratelimit())
604 usb_err(instance
->usbatm
, "submit of read urb for cm %#x failed (%d)\n",
609 memset(wbuf
, 0, wbuflen
);
610 /* handle wsize == 0 */
612 for (offb
= offd
= 0; offd
< wsize
; offd
+= stride
, offb
+= CMD_PACKET_SIZE
) {
614 memcpy(wbuf
+ offb
+ 4, wdata
+ offd
, min_t(int, stride
, wsize
- offd
));
617 instance
->snd_urb
->transfer_buffer_length
= wbuflen
;
618 init_completion(&instance
->snd_done
);
619 ret
= usb_submit_urb(instance
->snd_urb
, GFP_KERNEL
);
621 if (printk_ratelimit())
622 usb_err(instance
->usbatm
, "submit of write urb for cm %#x failed (%d)\n",
627 ret
= cxacru_start_wait_urb(instance
->snd_urb
, &instance
->snd_done
, NULL
);
629 if (printk_ratelimit())
630 usb_err(instance
->usbatm
, "send of cm %#x failed (%d)\n", cm
, ret
);
634 ret
= cxacru_start_wait_urb(instance
->rcv_urb
, &instance
->rcv_done
, &actlen
);
636 if (printk_ratelimit())
637 usb_err(instance
->usbatm
, "receive of cm %#x failed (%d)\n", cm
, ret
);
640 if (actlen
% CMD_PACKET_SIZE
|| !actlen
) {
641 if (printk_ratelimit())
642 usb_err(instance
->usbatm
, "invalid response length to cm %#x: %d\n",
648 /* check the return status and copy the data to the output buffer, if needed */
649 for (offb
= offd
= 0; offd
< rsize
&& offb
< actlen
; offb
+= CMD_PACKET_SIZE
) {
650 if (rbuf
[offb
] != cm
) {
651 if (printk_ratelimit())
652 usb_err(instance
->usbatm
, "wrong cm %#x in response to cm %#x\n",
657 if (rbuf
[offb
+ 1] != CM_STATUS_SUCCESS
) {
658 if (printk_ratelimit())
659 usb_err(instance
->usbatm
, "response to cm %#x failed: %#x\n",
666 memcpy(rdata
+ offd
, rbuf
+ offb
+ 4, min_t(int, stride
, rsize
- offd
));
671 usb_dbg(instance
->usbatm
, "cm %#x\n", cm
);
673 mutex_unlock(&instance
->cm_serialize
);
678 static int cxacru_cm_get_array(struct cxacru_data
*instance
, enum cxacru_cm_request cm
,
685 const int stride
= CMD_PACKET_SIZE
/ (4 * 2) - 1;
686 int buflen
= ((size
- 1) / stride
+ 1 + size
* 2) * 4;
688 buf
= kmalloc(buflen
, GFP_KERNEL
);
692 ret
= cxacru_cm(instance
, cm
, NULL
, 0, (u8
*) buf
, buflen
);
696 /* len > 0 && len % 4 == 0 guaranteed by cxacru_cm() */
698 for (offb
= 0; offb
< len
; ) {
699 int l
= le32_to_cpu(buf
[offb
++]);
701 if (l
< 0 || l
> stride
|| l
> (len
- offb
) / 2) {
702 if (printk_ratelimit())
703 usb_err(instance
->usbatm
, "invalid data length from cm %#x: %d\n",
709 offd
= le32_to_cpu(buf
[offb
++]);
711 if (printk_ratelimit())
712 usb_err(instance
->usbatm
, "wrong index %#x in response to cm %#x\n",
717 data
[offd
] = le32_to_cpu(buf
[offb
++]);
728 static int cxacru_card_status(struct cxacru_data
*instance
)
730 int ret
= cxacru_cm(instance
, CM_REQUEST_CARD_GET_STATUS
, NULL
, 0, NULL
, 0);
732 if (ret
< 0) { /* firmware not loaded */
733 usb_dbg(instance
->usbatm
, "cxacru_adsl_start: CARD_GET_STATUS returned %d\n", ret
);
739 static void cxacru_remove_device_files(struct usbatm_data
*usbatm_instance
,
740 struct atm_dev
*atm_dev
)
742 struct usb_interface
*intf
= usbatm_instance
->usb_intf
;
744 #define CXACRU_DEVICE_REMOVE_FILE(_name) \
745 device_remove_file(&intf->dev, &dev_attr_##_name);
746 CXACRU_ALL_FILES(REMOVE
);
747 #undef CXACRU_DEVICE_REMOVE_FILE
750 static int cxacru_atm_start(struct usbatm_data
*usbatm_instance
,
751 struct atm_dev
*atm_dev
)
753 struct cxacru_data
*instance
= usbatm_instance
->driver_data
;
754 struct usb_interface
*intf
= usbatm_instance
->usb_intf
;
756 int start_polling
= 1;
758 dev_dbg(&intf
->dev
, "%s\n", __func__
);
760 /* Read MAC address */
761 ret
= cxacru_cm(instance
, CM_REQUEST_CARD_GET_MAC_ADDRESS
, NULL
, 0,
762 atm_dev
->esi
, sizeof(atm_dev
->esi
));
764 atm_err(usbatm_instance
, "cxacru_atm_start: CARD_GET_MAC_ADDRESS returned %d\n", ret
);
768 #define CXACRU_DEVICE_CREATE_FILE(_name) \
769 ret = device_create_file(&intf->dev, &dev_attr_##_name); \
772 CXACRU_ALL_FILES(CREATE
);
773 #undef CXACRU_DEVICE_CREATE_FILE
776 mutex_lock(&instance
->adsl_state_serialize
);
777 ret
= cxacru_cm(instance
, CM_REQUEST_CHIP_ADSL_LINE_START
, NULL
, 0, NULL
, 0);
779 atm_err(usbatm_instance
, "cxacru_atm_start: CHIP_ADSL_LINE_START returned %d\n", ret
);
781 /* Start status polling */
782 mutex_lock(&instance
->poll_state_serialize
);
783 switch (instance
->poll_state
) {
786 instance
->poll_state
= CXPOLL_POLLING
;
789 case CXPOLL_STOPPING
:
790 /* abort stop request */
791 instance
->poll_state
= CXPOLL_POLLING
;
794 case CXPOLL_SHUTDOWN
:
795 /* don't start polling */
798 mutex_unlock(&instance
->poll_state_serialize
);
799 mutex_unlock(&instance
->adsl_state_serialize
);
801 printk(KERN_INFO
"%s%d: %s %pM\n", atm_dev
->type
, atm_dev
->number
,
802 usbatm_instance
->description
, atm_dev
->esi
);
805 cxacru_poll_status(&instance
->poll_work
.work
);
809 usb_err(usbatm_instance
, "cxacru_atm_start: device_create_file failed (%d)\n", ret
);
810 cxacru_remove_device_files(usbatm_instance
, atm_dev
);
814 static void cxacru_poll_status(struct work_struct
*work
)
816 struct cxacru_data
*instance
=
817 container_of(work
, struct cxacru_data
, poll_work
.work
);
818 u32 buf
[CXINF_MAX
] = {};
819 struct usbatm_data
*usbatm
= instance
->usbatm
;
820 struct atm_dev
*atm_dev
= usbatm
->atm_dev
;
821 int keep_polling
= 1;
824 ret
= cxacru_cm_get_array(instance
, CM_REQUEST_CARD_INFO_GET
, buf
, CXINF_MAX
);
826 if (ret
!= -ESHUTDOWN
)
827 atm_warn(usbatm
, "poll status: error %d\n", ret
);
829 mutex_lock(&instance
->poll_state_serialize
);
830 if (instance
->poll_state
!= CXPOLL_SHUTDOWN
) {
831 instance
->poll_state
= CXPOLL_STOPPED
;
833 if (ret
!= -ESHUTDOWN
)
834 atm_warn(usbatm
, "polling disabled, set adsl_state"
835 " to 'start' or 'poll' to resume\n");
837 mutex_unlock(&instance
->poll_state_serialize
);
841 memcpy(instance
->card_info
, buf
, sizeof(instance
->card_info
));
843 if (instance
->adsl_status
!= buf
[CXINF_LINE_STARTABLE
]) {
844 instance
->adsl_status
= buf
[CXINF_LINE_STARTABLE
];
846 switch (instance
->adsl_status
) {
848 atm_printk(KERN_INFO
, usbatm
, "ADSL state: running\n");
852 atm_printk(KERN_INFO
, usbatm
, "ADSL state: stopped\n");
856 atm_printk(KERN_INFO
, usbatm
, "Unknown adsl status %02x\n", instance
->adsl_status
);
861 if (instance
->line_status
== buf
[CXINF_LINE_STATUS
])
864 instance
->line_status
= buf
[CXINF_LINE_STATUS
];
865 switch (instance
->line_status
) {
867 atm_dev_signal_change(atm_dev
, ATM_PHY_SIG_LOST
);
868 atm_info(usbatm
, "ADSL line: down\n");
872 atm_dev_signal_change(atm_dev
, ATM_PHY_SIG_LOST
);
873 atm_info(usbatm
, "ADSL line: attempting to activate\n");
877 atm_dev_signal_change(atm_dev
, ATM_PHY_SIG_LOST
);
878 atm_info(usbatm
, "ADSL line: training\n");
882 atm_dev_signal_change(atm_dev
, ATM_PHY_SIG_LOST
);
883 atm_info(usbatm
, "ADSL line: channel analysis\n");
887 atm_dev_signal_change(atm_dev
, ATM_PHY_SIG_LOST
);
888 atm_info(usbatm
, "ADSL line: exchange\n");
892 atm_dev
->link_rate
= buf
[CXINF_DOWNSTREAM_RATE
] * 1000 / 424;
893 atm_dev_signal_change(atm_dev
, ATM_PHY_SIG_FOUND
);
895 atm_info(usbatm
, "ADSL line: up (%d kb/s down | %d kb/s up)\n",
896 buf
[CXINF_DOWNSTREAM_RATE
], buf
[CXINF_UPSTREAM_RATE
]);
900 atm_dev_signal_change(atm_dev
, ATM_PHY_SIG_LOST
);
901 atm_info(usbatm
, "ADSL line: waiting\n");
905 atm_dev_signal_change(atm_dev
, ATM_PHY_SIG_LOST
);
906 atm_info(usbatm
, "ADSL line: initializing\n");
910 atm_dev_signal_change(atm_dev
, ATM_PHY_SIG_UNKNOWN
);
911 atm_info(usbatm
, "Unknown line state %02x\n", instance
->line_status
);
916 mutex_lock(&instance
->poll_state_serialize
);
917 if (instance
->poll_state
== CXPOLL_STOPPING
&&
918 instance
->adsl_status
== 1 && /* stopped */
919 instance
->line_status
== 0) /* down */
920 instance
->poll_state
= CXPOLL_STOPPED
;
922 if (instance
->poll_state
== CXPOLL_STOPPED
)
924 mutex_unlock(&instance
->poll_state_serialize
);
927 schedule_delayed_work(&instance
->poll_work
,
928 round_jiffies_relative(POLL_INTERVAL
*HZ
));
931 static int cxacru_fw(struct usb_device
*usb_dev
, enum cxacru_fw_request fw
,
932 u8 code1
, u8 code2
, u32 addr
, const u8
*data
, int size
)
937 const int stride
= CMD_PACKET_SIZE
- 8;
939 buf
= (u8
*) __get_free_page(GFP_KERNEL
);
945 int l
= min_t(int, stride
, size
- offd
);
951 put_unaligned(cpu_to_le32(addr
), (__le32
*)(buf
+ offb
));
955 memcpy(buf
+ offb
, data
+ offd
, l
);
957 memset(buf
+ offb
+ l
, 0, stride
- l
);
960 if ((offb
>= PAGE_SIZE
) || (offd
>= size
)) {
961 ret
= usb_bulk_msg(usb_dev
, usb_sndbulkpipe(usb_dev
, CXACRU_EP_CMD
),
962 buf
, offb
, NULL
, CMD_TIMEOUT
);
964 dev_dbg(&usb_dev
->dev
, "sending fw %#x failed\n", fw
);
969 } while (offd
< size
);
970 dev_dbg(&usb_dev
->dev
, "sent fw %#x\n", fw
);
975 free_page((unsigned long) buf
);
979 static void cxacru_upload_firmware(struct cxacru_data
*instance
,
980 const struct firmware
*fw
,
981 const struct firmware
*bp
)
984 struct usbatm_data
*usbatm
= instance
->usbatm
;
985 struct usb_device
*usb_dev
= usbatm
->usb_dev
;
986 __le16 signature
[] = { usb_dev
->descriptor
.idVendor
,
987 usb_dev
->descriptor
.idProduct
};
990 usb_dbg(usbatm
, "%s\n", __func__
);
992 /* FirmwarePllFClkValue */
993 val
= cpu_to_le32(instance
->modem_type
->pll_f_clk
);
994 ret
= cxacru_fw(usb_dev
, FW_WRITE_MEM
, 0x2, 0x0, PLLFCLK_ADDR
, (u8
*) &val
, 4);
996 usb_err(usbatm
, "FirmwarePllFClkValue failed: %d\n", ret
);
1000 /* FirmwarePllBClkValue */
1001 val
= cpu_to_le32(instance
->modem_type
->pll_b_clk
);
1002 ret
= cxacru_fw(usb_dev
, FW_WRITE_MEM
, 0x2, 0x0, PLLBCLK_ADDR
, (u8
*) &val
, 4);
1004 usb_err(usbatm
, "FirmwarePllBClkValue failed: %d\n", ret
);
1009 val
= cpu_to_le32(SDRAM_ENA
);
1010 ret
= cxacru_fw(usb_dev
, FW_WRITE_MEM
, 0x2, 0x0, SDRAMEN_ADDR
, (u8
*) &val
, 4);
1012 usb_err(usbatm
, "Enable SDRAM failed: %d\n", ret
);
1017 usb_info(usbatm
, "loading firmware\n");
1018 ret
= cxacru_fw(usb_dev
, FW_WRITE_MEM
, 0x2, 0x0, FW_ADDR
, fw
->data
, fw
->size
);
1020 usb_err(usbatm
, "Firmware upload failed: %d\n", ret
);
1024 /* Boot ROM patch */
1025 if (instance
->modem_type
->boot_rom_patch
) {
1026 usb_info(usbatm
, "loading boot ROM patch\n");
1027 ret
= cxacru_fw(usb_dev
, FW_WRITE_MEM
, 0x2, 0x0, BR_ADDR
, bp
->data
, bp
->size
);
1029 usb_err(usbatm
, "Boot ROM patching failed: %d\n", ret
);
1035 ret
= cxacru_fw(usb_dev
, FW_WRITE_MEM
, 0x2, 0x0, SIG_ADDR
, (u8
*) signature
, 4);
1037 usb_err(usbatm
, "Signature storing failed: %d\n", ret
);
1041 usb_info(usbatm
, "starting device\n");
1042 if (instance
->modem_type
->boot_rom_patch
) {
1043 val
= cpu_to_le32(BR_ADDR
);
1044 ret
= cxacru_fw(usb_dev
, FW_WRITE_MEM
, 0x2, 0x0, BR_STACK_ADDR
, (u8
*) &val
, 4);
1046 ret
= cxacru_fw(usb_dev
, FW_GOTO_MEM
, 0x0, 0x0, FW_ADDR
, NULL
, 0);
1049 usb_err(usbatm
, "Passing control to firmware failed: %d\n", ret
);
1053 /* Delay to allow firmware to start up. */
1054 msleep_interruptible(1000);
1056 usb_clear_halt(usb_dev
, usb_sndbulkpipe(usb_dev
, CXACRU_EP_CMD
));
1057 usb_clear_halt(usb_dev
, usb_rcvbulkpipe(usb_dev
, CXACRU_EP_CMD
));
1058 usb_clear_halt(usb_dev
, usb_sndbulkpipe(usb_dev
, CXACRU_EP_DATA
));
1059 usb_clear_halt(usb_dev
, usb_rcvbulkpipe(usb_dev
, CXACRU_EP_DATA
));
1061 ret
= cxacru_cm(instance
, CM_REQUEST_CARD_GET_STATUS
, NULL
, 0, NULL
, 0);
1063 usb_err(usbatm
, "modem failed to initialize: %d\n", ret
);
1068 static int cxacru_find_firmware(struct cxacru_data
*instance
,
1069 char *phase
, const struct firmware
**fw_p
)
1071 struct usbatm_data
*usbatm
= instance
->usbatm
;
1072 struct device
*dev
= &usbatm
->usb_intf
->dev
;
1075 sprintf(buf
, "cxacru-%s.bin", phase
);
1076 usb_dbg(usbatm
, "cxacru_find_firmware: looking for %s\n", buf
);
1078 if (request_firmware(fw_p
, buf
, dev
)) {
1079 usb_dbg(usbatm
, "no stage %s firmware found\n", phase
);
1083 usb_info(usbatm
, "found firmware %s\n", buf
);
1088 static int cxacru_heavy_init(struct usbatm_data
*usbatm_instance
,
1089 struct usb_interface
*usb_intf
)
1091 const struct firmware
*fw
, *bp
;
1092 struct cxacru_data
*instance
= usbatm_instance
->driver_data
;
1093 int ret
= cxacru_find_firmware(instance
, "fw", &fw
);
1096 usb_warn(usbatm_instance
, "firmware (cxacru-fw.bin) unavailable (system misconfigured?)\n");
1100 if (instance
->modem_type
->boot_rom_patch
) {
1101 ret
= cxacru_find_firmware(instance
, "bp", &bp
);
1103 usb_warn(usbatm_instance
, "boot ROM patch (cxacru-bp.bin) unavailable (system misconfigured?)\n");
1104 release_firmware(fw
);
1109 cxacru_upload_firmware(instance
, fw
, bp
);
1111 if (instance
->modem_type
->boot_rom_patch
)
1112 release_firmware(bp
);
1113 release_firmware(fw
);
1115 ret
= cxacru_card_status(instance
);
1117 usb_dbg(usbatm_instance
, "modem initialisation failed\n");
1119 usb_dbg(usbatm_instance
, "done setting up the modem\n");
1124 static int cxacru_bind(struct usbatm_data
*usbatm_instance
,
1125 struct usb_interface
*intf
, const struct usb_device_id
*id
)
1127 struct cxacru_data
*instance
;
1128 struct usb_device
*usb_dev
= interface_to_usbdev(intf
);
1129 struct usb_host_endpoint
*cmd_ep
= usb_dev
->ep_in
[CXACRU_EP_CMD
];
1133 instance
= kzalloc(sizeof(*instance
), GFP_KERNEL
);
1137 instance
->usbatm
= usbatm_instance
;
1138 instance
->modem_type
= (struct cxacru_modem_type
*) id
->driver_info
;
1140 mutex_init(&instance
->poll_state_serialize
);
1141 instance
->poll_state
= CXPOLL_STOPPED
;
1142 instance
->line_status
= -1;
1143 instance
->adsl_status
= -1;
1145 mutex_init(&instance
->adsl_state_serialize
);
1147 instance
->rcv_buf
= (u8
*) __get_free_page(GFP_KERNEL
);
1148 if (!instance
->rcv_buf
) {
1149 usb_dbg(usbatm_instance
, "cxacru_bind: no memory for rcv_buf\n");
1153 instance
->snd_buf
= (u8
*) __get_free_page(GFP_KERNEL
);
1154 if (!instance
->snd_buf
) {
1155 usb_dbg(usbatm_instance
, "cxacru_bind: no memory for snd_buf\n");
1159 instance
->rcv_urb
= usb_alloc_urb(0, GFP_KERNEL
);
1160 if (!instance
->rcv_urb
) {
1164 instance
->snd_urb
= usb_alloc_urb(0, GFP_KERNEL
);
1165 if (!instance
->snd_urb
) {
1171 usb_dbg(usbatm_instance
, "cxacru_bind: no command endpoint\n");
1176 if ((cmd_ep
->desc
.bmAttributes
& USB_ENDPOINT_XFERTYPE_MASK
)
1177 == USB_ENDPOINT_XFER_INT
) {
1178 usb_fill_int_urb(instance
->rcv_urb
,
1179 usb_dev
, usb_rcvintpipe(usb_dev
, CXACRU_EP_CMD
),
1180 instance
->rcv_buf
, PAGE_SIZE
,
1181 cxacru_blocking_completion
, &instance
->rcv_done
, 1);
1183 usb_fill_int_urb(instance
->snd_urb
,
1184 usb_dev
, usb_sndintpipe(usb_dev
, CXACRU_EP_CMD
),
1185 instance
->snd_buf
, PAGE_SIZE
,
1186 cxacru_blocking_completion
, &instance
->snd_done
, 4);
1188 usb_fill_bulk_urb(instance
->rcv_urb
,
1189 usb_dev
, usb_rcvbulkpipe(usb_dev
, CXACRU_EP_CMD
),
1190 instance
->rcv_buf
, PAGE_SIZE
,
1191 cxacru_blocking_completion
, &instance
->rcv_done
);
1193 usb_fill_bulk_urb(instance
->snd_urb
,
1194 usb_dev
, usb_sndbulkpipe(usb_dev
, CXACRU_EP_CMD
),
1195 instance
->snd_buf
, PAGE_SIZE
,
1196 cxacru_blocking_completion
, &instance
->snd_done
);
1199 mutex_init(&instance
->cm_serialize
);
1201 INIT_DELAYED_WORK(&instance
->poll_work
, cxacru_poll_status
);
1203 usbatm_instance
->driver_data
= instance
;
1205 usbatm_instance
->flags
= (cxacru_card_status(instance
) ? 0 : UDSL_SKIP_HEAVY_INIT
);
1210 free_page((unsigned long) instance
->snd_buf
);
1211 free_page((unsigned long) instance
->rcv_buf
);
1212 usb_free_urb(instance
->snd_urb
);
1213 usb_free_urb(instance
->rcv_urb
);
1219 static void cxacru_unbind(struct usbatm_data
*usbatm_instance
,
1220 struct usb_interface
*intf
)
1222 struct cxacru_data
*instance
= usbatm_instance
->driver_data
;
1225 usb_dbg(usbatm_instance
, "cxacru_unbind entered\n");
1228 usb_dbg(usbatm_instance
, "cxacru_unbind: NULL instance!\n");
1232 mutex_lock(&instance
->poll_state_serialize
);
1233 BUG_ON(instance
->poll_state
== CXPOLL_SHUTDOWN
);
1235 /* ensure that status polling continues unless
1236 * it has already stopped */
1237 if (instance
->poll_state
== CXPOLL_STOPPED
)
1240 /* stop polling from being stopped or started */
1241 instance
->poll_state
= CXPOLL_SHUTDOWN
;
1242 mutex_unlock(&instance
->poll_state_serialize
);
1245 cancel_delayed_work_sync(&instance
->poll_work
);
1247 usb_kill_urb(instance
->snd_urb
);
1248 usb_kill_urb(instance
->rcv_urb
);
1249 usb_free_urb(instance
->snd_urb
);
1250 usb_free_urb(instance
->rcv_urb
);
1252 free_page((unsigned long) instance
->snd_buf
);
1253 free_page((unsigned long) instance
->rcv_buf
);
1257 usbatm_instance
->driver_data
= NULL
;
1260 static const struct cxacru_modem_type cxacru_cafe
= {
1261 .pll_f_clk
= 0x02d874df,
1262 .pll_b_clk
= 0x0196a51a,
1263 .boot_rom_patch
= 1,
1266 static const struct cxacru_modem_type cxacru_cb00
= {
1269 .boot_rom_patch
= 0,
1272 static const struct usb_device_id cxacru_usb_ids
[] = {
1273 { /* V = Conexant P = ADSL modem (Euphrates project) */
1274 USB_DEVICE(0x0572, 0xcafe), .driver_info
= (unsigned long) &cxacru_cafe
1276 { /* V = Conexant P = ADSL modem (Hasbani project) */
1277 USB_DEVICE(0x0572, 0xcb00), .driver_info
= (unsigned long) &cxacru_cb00
1279 { /* V = Conexant P = ADSL modem */
1280 USB_DEVICE(0x0572, 0xcb01), .driver_info
= (unsigned long) &cxacru_cb00
1282 { /* V = Conexant P = ADSL modem (Well PTI-800) */
1283 USB_DEVICE(0x0572, 0xcb02), .driver_info
= (unsigned long) &cxacru_cb00
1285 { /* V = Conexant P = ADSL modem */
1286 USB_DEVICE(0x0572, 0xcb06), .driver_info
= (unsigned long) &cxacru_cb00
1288 { /* V = Conexant P = ADSL modem (ZTE ZXDSL 852) */
1289 USB_DEVICE(0x0572, 0xcb07), .driver_info
= (unsigned long) &cxacru_cb00
1291 { /* V = Olitec P = ADSL modem version 2 */
1292 USB_DEVICE(0x08e3, 0x0100), .driver_info
= (unsigned long) &cxacru_cafe
1294 { /* V = Olitec P = ADSL modem version 3 */
1295 USB_DEVICE(0x08e3, 0x0102), .driver_info
= (unsigned long) &cxacru_cb00
1297 { /* V = Trust/Amigo Technology Co. P = AMX-CA86U */
1298 USB_DEVICE(0x0eb0, 0x3457), .driver_info
= (unsigned long) &cxacru_cafe
1300 { /* V = Zoom P = 5510 */
1301 USB_DEVICE(0x1803, 0x5510), .driver_info
= (unsigned long) &cxacru_cb00
1303 { /* V = Draytek P = Vigor 318 */
1304 USB_DEVICE(0x0675, 0x0200), .driver_info
= (unsigned long) &cxacru_cb00
1306 { /* V = Zyxel P = 630-C1 aka OMNI ADSL USB (Annex A) */
1307 USB_DEVICE(0x0586, 0x330a), .driver_info
= (unsigned long) &cxacru_cb00
1309 { /* V = Zyxel P = 630-C3 aka OMNI ADSL USB (Annex B) */
1310 USB_DEVICE(0x0586, 0x330b), .driver_info
= (unsigned long) &cxacru_cb00
1312 { /* V = Aethra P = Starmodem UM1020 */
1313 USB_DEVICE(0x0659, 0x0020), .driver_info
= (unsigned long) &cxacru_cb00
1315 { /* V = Aztech Systems P = ? AKA Pirelli AUA-010 */
1316 USB_DEVICE(0x0509, 0x0812), .driver_info
= (unsigned long) &cxacru_cb00
1318 { /* V = Netopia P = Cayman 3341(Annex A)/3351(Annex B) */
1319 USB_DEVICE(0x100d, 0xcb01), .driver_info
= (unsigned long) &cxacru_cb00
1321 { /* V = Netopia P = Cayman 3342(Annex A)/3352(Annex B) */
1322 USB_DEVICE(0x100d, 0x3342), .driver_info
= (unsigned long) &cxacru_cb00
1327 MODULE_DEVICE_TABLE(usb
, cxacru_usb_ids
);
1329 static struct usbatm_driver cxacru_driver
= {
1330 .driver_name
= cxacru_driver_name
,
1331 .bind
= cxacru_bind
,
1332 .heavy_init
= cxacru_heavy_init
,
1333 .unbind
= cxacru_unbind
,
1334 .atm_start
= cxacru_atm_start
,
1335 .atm_stop
= cxacru_remove_device_files
,
1336 .bulk_in
= CXACRU_EP_DATA
,
1337 .bulk_out
= CXACRU_EP_DATA
,
1342 static int cxacru_usb_probe(struct usb_interface
*intf
,
1343 const struct usb_device_id
*id
)
1345 struct usb_device
*usb_dev
= interface_to_usbdev(intf
);
1348 /* Avoid ADSL routers (cx82310_eth).
1349 * Abort if bDeviceClass is 0xff and iProduct is "USB NET CARD".
1351 if (usb_dev
->descriptor
.bDeviceClass
== USB_CLASS_VENDOR_SPEC
1352 && usb_string(usb_dev
, usb_dev
->descriptor
.iProduct
,
1353 buf
, sizeof(buf
)) > 0) {
1354 if (!strcmp(buf
, "USB NET CARD")) {
1355 dev_info(&intf
->dev
, "ignoring cx82310_eth device\n");
1360 return usbatm_usb_probe(intf
, id
, &cxacru_driver
);
1363 static struct usb_driver cxacru_usb_driver
= {
1364 .name
= cxacru_driver_name
,
1365 .probe
= cxacru_usb_probe
,
1366 .disconnect
= usbatm_usb_disconnect
,
1367 .id_table
= cxacru_usb_ids
1370 module_usb_driver(cxacru_usb_driver
);
1372 MODULE_AUTHOR(DRIVER_AUTHOR
);
1373 MODULE_DESCRIPTION(DRIVER_DESC
);
1374 MODULE_LICENSE("GPL");