1 /****************************************************************
3 * kaweth.c - driver for KL5KUSB101 based USB->Ethernet
5 * (c) 2000 Interlan Communications
6 * (c) 2000 Stephane Alnet
8 * (C) 2002 Oliver Neukum
10 * Original author: The Zapman <zapman@interlan.net>
11 * Inspired by, and much credit goes to Michael Rothwell
12 * <rothwell@interlan.net> for the test equipment, help, and patience
13 * Based off of (and with thanks to) Petko Manolov's pegaus.c driver.
14 * Also many thanks to Joel Silverman and Ed Surprenant at Kawasaki
15 * for providing the firmware and driver resources.
17 * This program is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU General Public License as
19 * published by the Free Software Foundation; either version 2, or
20 * (at your option) any later version.
22 * This program is distributed in the hope that it will be useful,
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 * GNU General Public License for more details.
27 * You should have received a copy of the GNU General Public License
28 * along with this program; if not, write to the Free Software Foundation,
29 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
31 ****************************************************************/
34 * Fix in_interrupt() problem
35 * Develop test procedures for USB net interfaces
37 * Fix bugs from previous two steps
38 * Snoop other OSs for any tricks we're not doing
40 * Reduce arbitrary timeouts
41 * Smart multicast support
42 * Temporary MAC change support
43 * Tunable SOFs parameter - ioctl()?
44 * Ethernet stats collection
45 * Code formatting improvements
48 #include <linux/module.h>
49 #include <linux/slab.h>
50 #include <linux/string.h>
51 #include <linux/init.h>
52 #include <linux/delay.h>
53 #include <linux/netdevice.h>
54 #include <linux/etherdevice.h>
55 #include <linux/usb.h>
56 #include <linux/types.h>
57 #include <linux/ethtool.h>
58 #include <linux/dma-mapping.h>
59 #include <linux/wait.h>
60 #include <asm/uaccess.h>
61 #include <asm/byteorder.h>
67 #define KAWETH_MTU 1514
68 #define KAWETH_BUF_SIZE 1664
69 #define KAWETH_TX_TIMEOUT (5 * HZ)
70 #define KAWETH_SCRATCH_SIZE 32
71 #define KAWETH_FIRMWARE_BUF_SIZE 4096
72 #define KAWETH_CONTROL_TIMEOUT (30000)
74 #define KAWETH_STATUS_BROKEN 0x0000001
75 #define KAWETH_STATUS_CLOSING 0x0000002
76 #define KAWETH_STATUS_SUSPENDING 0x0000004
78 #define KAWETH_STATUS_BLOCKED (KAWETH_STATUS_CLOSING | KAWETH_STATUS_SUSPENDING)
80 #define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01
81 #define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02
82 #define KAWETH_PACKET_FILTER_DIRECTED 0x04
83 #define KAWETH_PACKET_FILTER_BROADCAST 0x08
84 #define KAWETH_PACKET_FILTER_MULTICAST 0x10
87 #define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00
88 #define KAWETH_COMMAND_MULTICAST_FILTERS 0x01
89 #define KAWETH_COMMAND_SET_PACKET_FILTER 0x02
90 #define KAWETH_COMMAND_STATISTICS 0x03
91 #define KAWETH_COMMAND_SET_TEMP_MAC 0x06
92 #define KAWETH_COMMAND_GET_TEMP_MAC 0x07
93 #define KAWETH_COMMAND_SET_URB_SIZE 0x08
94 #define KAWETH_COMMAND_SET_SOFS_WAIT 0x09
95 #define KAWETH_COMMAND_SCAN 0xFF
97 #define KAWETH_SOFS_TO_WAIT 0x05
99 #define INTBUFFERSIZE 4
101 #define STATE_OFFSET 0
102 #define STATE_MASK 0x40
103 #define STATE_SHIFT 5
105 #define IS_BLOCKED(s) (s & KAWETH_STATUS_BLOCKED)
108 MODULE_AUTHOR("Michael Zappe <zapman@interlan.net>, Stephane Alnet <stephane@u-picardie.fr>, Brad Hards <bhards@bigpond.net.au> and Oliver Neukum <oliver@neukum.org>");
109 MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver");
110 MODULE_LICENSE("GPL");
112 static const char driver_name
[] = "kaweth";
114 static int kaweth_probe(
115 struct usb_interface
*intf
,
116 const struct usb_device_id
*id
/* from id_table */
118 static void kaweth_disconnect(struct usb_interface
*intf
);
119 static int kaweth_internal_control_msg(struct usb_device
*usb_dev
,
121 struct usb_ctrlrequest
*cmd
, void *data
,
122 int len
, int timeout
);
123 static int kaweth_suspend(struct usb_interface
*intf
, pm_message_t message
);
124 static int kaweth_resume(struct usb_interface
*intf
);
126 /****************************************************************
128 ****************************************************************/
129 static struct usb_device_id usb_klsi_table
[] = {
130 { USB_DEVICE(0x03e8, 0x0008) }, /* AOX Endpoints USB Ethernet */
131 { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USB-ET/T */
132 { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */
133 { USB_DEVICE(0x0506, 0x11f8) }, /* 3Com 3C460 */
134 { USB_DEVICE(0x0557, 0x2002) }, /* ATEN USB Ethernet */
135 { USB_DEVICE(0x0557, 0x4000) }, /* D-Link DSB-650C */
136 { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Enet */
137 { USB_DEVICE(0x0565, 0x0003) }, /* Optus@Home UEP1045A */
138 { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Enet2 */
139 { USB_DEVICE(0x05e9, 0x0008) }, /* KLSI KL5KUSB101B */
140 { USB_DEVICE(0x05e9, 0x0009) }, /* KLSI KL5KUSB101B (Board change) */
141 { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */
142 { USB_DEVICE(0x06e1, 0x0008) }, /* ADS USB-10BT */
143 { USB_DEVICE(0x06e1, 0x0009) }, /* ADS USB-10BT */
144 { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */
145 { USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */
146 { USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */
147 { USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */
148 { USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */
149 { USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */
150 { USB_DEVICE(0x085a, 0x0009) }, /* PortGear Ethernet Adapter */
151 { USB_DEVICE(0x087d, 0x5704) }, /* Jaton USB Ethernet Device Adapter */
152 { USB_DEVICE(0x0951, 0x0008) }, /* Kingston Technology USB Ethernet Adapter */
153 { USB_DEVICE(0x095a, 0x3003) }, /* Portsmith Express Ethernet Adapter */
154 { USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */
155 { USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */
156 { USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */
157 { USB_DEVICE(0x1485, 0x0001) }, /* Silicom U2E */
158 { USB_DEVICE(0x1485, 0x0002) }, /* Psion Dacom Gold Port Ethernet */
159 { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */
160 { USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */
161 { USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */
162 { USB_DEVICE(0x1668, 0x0323) }, /* Actiontec USB Ethernet */
163 { USB_DEVICE(0x2001, 0x4000) }, /* D-link DSB-650C */
164 {} /* Null terminator */
167 MODULE_DEVICE_TABLE (usb
, usb_klsi_table
);
169 /****************************************************************
171 ****************************************************************/
172 static struct usb_driver kaweth_driver
= {
174 .probe
= kaweth_probe
,
175 .disconnect
= kaweth_disconnect
,
176 .suspend
= kaweth_suspend
,
177 .resume
= kaweth_resume
,
178 .id_table
= usb_klsi_table
,
179 .supports_autosuspend
= 1,
182 typedef __u8 eth_addr_t
[6];
184 /****************************************************************
186 ****************************************************************/
194 /****************************************************************
195 * kaweth_ethernet_configuration
197 ****************************************************************/
198 struct kaweth_ethernet_configuration
204 __u32 statistics_mask
;
206 __u16 max_multicast_filters
;
208 } __attribute__ ((packed
));
210 /****************************************************************
212 ****************************************************************/
215 spinlock_t device_lock
;
219 int suspend_lowmem_rx
;
220 int suspend_lowmem_ctrl
;
223 struct delayed_work lowmem_work
;
225 struct usb_device
*dev
;
226 struct usb_interface
*intf
;
227 struct net_device
*net
;
228 wait_queue_head_t term_wait
;
234 dma_addr_t intbufferhandle
;
236 dma_addr_t rxbufferhandle
;
240 struct sk_buff
*tx_skb
;
243 __u8 scratch
[KAWETH_SCRATCH_SIZE
];
244 __u16 packet_filter_bitmap
;
246 struct kaweth_ethernet_configuration configuration
;
248 struct net_device_stats stats
;
252 /****************************************************************
254 ****************************************************************/
255 static int kaweth_control(struct kaweth_device
*kaweth
,
265 struct usb_ctrlrequest
*dr
;
267 dbg("kaweth_control()");
270 dbg("in_interrupt()");
274 dr
= kmalloc(sizeof(struct usb_ctrlrequest
), GFP_ATOMIC
);
277 dbg("kmalloc() failed");
281 dr
->bRequestType
= requesttype
;
282 dr
->bRequest
= request
;
283 dr
->wValue
= cpu_to_le16p(&value
);
284 dr
->wIndex
= cpu_to_le16p(&index
);
285 dr
->wLength
= cpu_to_le16p(&size
);
287 return kaweth_internal_control_msg(kaweth
->dev
,
295 /****************************************************************
296 * kaweth_read_configuration
297 ****************************************************************/
298 static int kaweth_read_configuration(struct kaweth_device
*kaweth
)
302 dbg("Reading kaweth configuration");
304 retval
= kaweth_control(kaweth
,
305 usb_rcvctrlpipe(kaweth
->dev
, 0),
306 KAWETH_COMMAND_GET_ETHERNET_DESC
,
307 USB_TYPE_VENDOR
| USB_DIR_IN
| USB_RECIP_DEVICE
,
310 (void *)&kaweth
->configuration
,
311 sizeof(kaweth
->configuration
),
312 KAWETH_CONTROL_TIMEOUT
);
317 /****************************************************************
318 * kaweth_set_urb_size
319 ****************************************************************/
320 static int kaweth_set_urb_size(struct kaweth_device
*kaweth
, __u16 urb_size
)
324 dbg("Setting URB size to %d", (unsigned)urb_size
);
326 retval
= kaweth_control(kaweth
,
327 usb_sndctrlpipe(kaweth
->dev
, 0),
328 KAWETH_COMMAND_SET_URB_SIZE
,
329 USB_TYPE_VENDOR
| USB_DIR_OUT
| USB_RECIP_DEVICE
,
332 (void *)&kaweth
->scratch
,
334 KAWETH_CONTROL_TIMEOUT
);
339 /****************************************************************
340 * kaweth_set_sofs_wait
341 ****************************************************************/
342 static int kaweth_set_sofs_wait(struct kaweth_device
*kaweth
, __u16 sofs_wait
)
346 dbg("Set SOFS wait to %d", (unsigned)sofs_wait
);
348 retval
= kaweth_control(kaweth
,
349 usb_sndctrlpipe(kaweth
->dev
, 0),
350 KAWETH_COMMAND_SET_SOFS_WAIT
,
351 USB_TYPE_VENDOR
| USB_DIR_OUT
| USB_RECIP_DEVICE
,
354 (void *)&kaweth
->scratch
,
356 KAWETH_CONTROL_TIMEOUT
);
361 /****************************************************************
362 * kaweth_set_receive_filter
363 ****************************************************************/
364 static int kaweth_set_receive_filter(struct kaweth_device
*kaweth
,
365 __u16 receive_filter
)
369 dbg("Set receive filter to %d", (unsigned)receive_filter
);
371 retval
= kaweth_control(kaweth
,
372 usb_sndctrlpipe(kaweth
->dev
, 0),
373 KAWETH_COMMAND_SET_PACKET_FILTER
,
374 USB_TYPE_VENDOR
| USB_DIR_OUT
| USB_RECIP_DEVICE
,
377 (void *)&kaweth
->scratch
,
379 KAWETH_CONTROL_TIMEOUT
);
384 /****************************************************************
385 * kaweth_download_firmware
386 ****************************************************************/
387 static int kaweth_download_firmware(struct kaweth_device
*kaweth
,
393 if(data_len
> KAWETH_FIRMWARE_BUF_SIZE
) {
394 err("Firmware too big: %d", data_len
);
398 memcpy(kaweth
->firmware_buf
, data
, data_len
);
400 kaweth
->firmware_buf
[2] = (data_len
& 0xFF) - 7;
401 kaweth
->firmware_buf
[3] = data_len
>> 8;
402 kaweth
->firmware_buf
[4] = type
;
403 kaweth
->firmware_buf
[5] = interrupt
;
405 dbg("High: %i, Low:%i", kaweth
->firmware_buf
[3],
406 kaweth
->firmware_buf
[2]);
408 dbg("Downloading firmware at %p to kaweth device at %p",
411 dbg("Firmware length: %d", data_len
);
413 return kaweth_control(kaweth
,
414 usb_sndctrlpipe(kaweth
->dev
, 0),
416 USB_TYPE_VENDOR
| USB_DIR_OUT
| USB_RECIP_DEVICE
,
419 (void *)kaweth
->firmware_buf
,
421 KAWETH_CONTROL_TIMEOUT
);
424 /****************************************************************
425 * kaweth_trigger_firmware
426 ****************************************************************/
427 static int kaweth_trigger_firmware(struct kaweth_device
*kaweth
,
430 kaweth
->firmware_buf
[0] = 0xB6;
431 kaweth
->firmware_buf
[1] = 0xC3;
432 kaweth
->firmware_buf
[2] = 0x01;
433 kaweth
->firmware_buf
[3] = 0x00;
434 kaweth
->firmware_buf
[4] = 0x06;
435 kaweth
->firmware_buf
[5] = interrupt
;
436 kaweth
->firmware_buf
[6] = 0x00;
437 kaweth
->firmware_buf
[7] = 0x00;
439 dbg("Triggering firmware");
441 return kaweth_control(kaweth
,
442 usb_sndctrlpipe(kaweth
->dev
, 0),
444 USB_TYPE_VENDOR
| USB_DIR_OUT
| USB_RECIP_DEVICE
,
447 (void *)kaweth
->firmware_buf
,
449 KAWETH_CONTROL_TIMEOUT
);
452 /****************************************************************
454 ****************************************************************/
455 static int kaweth_reset(struct kaweth_device
*kaweth
)
459 dbg("kaweth_reset(%p)", kaweth
);
460 result
= kaweth_control(kaweth
,
461 usb_sndctrlpipe(kaweth
->dev
, 0),
462 USB_REQ_SET_CONFIGURATION
,
464 kaweth
->dev
->config
[0].desc
.bConfigurationValue
,
468 KAWETH_CONTROL_TIMEOUT
);
472 dbg("kaweth_reset() returns %d.",result
);
477 static void kaweth_usb_receive(struct urb
*);
478 static int kaweth_resubmit_rx_urb(struct kaweth_device
*, gfp_t
);
480 /****************************************************************
482 *****************************************************************/
484 static void kaweth_resubmit_int_urb(struct kaweth_device
*kaweth
, gfp_t mf
)
488 status
= usb_submit_urb (kaweth
->irq_urb
, mf
);
489 if (unlikely(status
== -ENOMEM
)) {
490 kaweth
->suspend_lowmem_ctrl
= 1;
491 schedule_delayed_work(&kaweth
->lowmem_work
, HZ
/4);
493 kaweth
->suspend_lowmem_ctrl
= 0;
497 err ("can't resubmit intr, %s-%s, status %d",
498 kaweth
->dev
->bus
->bus_name
,
499 kaweth
->dev
->devpath
, status
);
502 static void int_callback(struct urb
*u
)
504 struct kaweth_device
*kaweth
= u
->context
;
508 case 0: /* success */
510 case -ECONNRESET
: /* unlink */
514 /* -EPIPE: should clear the halt */
519 /* we check the link state to report changes */
520 if (kaweth
->linkstate
!= (act_state
= ( kaweth
->intbuffer
[STATE_OFFSET
] | STATE_MASK
) >> STATE_SHIFT
)) {
522 netif_carrier_on(kaweth
->net
);
524 netif_carrier_off(kaweth
->net
);
526 kaweth
->linkstate
= act_state
;
529 kaweth_resubmit_int_urb(kaweth
, GFP_ATOMIC
);
532 static void kaweth_resubmit_tl(struct work_struct
*work
)
534 struct kaweth_device
*kaweth
=
535 container_of(work
, struct kaweth_device
, lowmem_work
.work
);
537 if (IS_BLOCKED(kaweth
->status
))
540 if (kaweth
->suspend_lowmem_rx
)
541 kaweth_resubmit_rx_urb(kaweth
, GFP_NOIO
);
543 if (kaweth
->suspend_lowmem_ctrl
)
544 kaweth_resubmit_int_urb(kaweth
, GFP_NOIO
);
548 /****************************************************************
549 * kaweth_resubmit_rx_urb
550 ****************************************************************/
551 static int kaweth_resubmit_rx_urb(struct kaweth_device
*kaweth
,
556 usb_fill_bulk_urb(kaweth
->rx_urb
,
558 usb_rcvbulkpipe(kaweth
->dev
, 1),
563 kaweth
->rx_urb
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
564 kaweth
->rx_urb
->transfer_dma
= kaweth
->rxbufferhandle
;
566 if((result
= usb_submit_urb(kaweth
->rx_urb
, mem_flags
))) {
567 if (result
== -ENOMEM
) {
568 kaweth
->suspend_lowmem_rx
= 1;
569 schedule_delayed_work(&kaweth
->lowmem_work
, HZ
/4);
571 err("resubmitting rx_urb %d failed", result
);
573 kaweth
->suspend_lowmem_rx
= 0;
579 static void kaweth_async_set_rx_mode(struct kaweth_device
*kaweth
);
581 /****************************************************************
583 ****************************************************************/
584 static void kaweth_usb_receive(struct urb
*urb
)
586 struct kaweth_device
*kaweth
= urb
->context
;
587 struct net_device
*net
= kaweth
->net
;
589 int count
= urb
->actual_length
;
590 int count2
= urb
->transfer_buffer_length
;
592 __u16 pkt_len
= le16_to_cpup((__le16
*)kaweth
->rx_buf
);
596 if(unlikely(urb
->status
== -ECONNRESET
|| urb
->status
== -ESHUTDOWN
))
597 /* we are killed - set a flag and wake the disconnect handler */
600 wake_up(&kaweth
->term_wait
);
604 spin_lock(&kaweth
->device_lock
);
605 if (IS_BLOCKED(kaweth
->status
)) {
606 spin_unlock(&kaweth
->device_lock
);
609 spin_unlock(&kaweth
->device_lock
);
611 if(urb
->status
&& urb
->status
!= -EREMOTEIO
&& count
!= 1) {
612 err("%s RX status: %d count: %d packet_len: %d",
617 kaweth_resubmit_rx_urb(kaweth
, GFP_ATOMIC
);
621 if(kaweth
->net
&& (count
> 2)) {
622 if(pkt_len
> (count
- 2)) {
623 err("Packet length too long for USB frame (pkt_len: %x, count: %x)",pkt_len
, count
);
624 err("Packet len & 2047: %x", pkt_len
& 2047);
625 err("Count 2: %x", count2
);
626 kaweth_resubmit_rx_urb(kaweth
, GFP_ATOMIC
);
630 if(!(skb
= dev_alloc_skb(pkt_len
+2))) {
631 kaweth_resubmit_rx_urb(kaweth
, GFP_ATOMIC
);
635 skb_reserve(skb
, 2); /* Align IP on 16 byte boundaries */
637 skb_copy_to_linear_data(skb
, kaweth
->rx_buf
+ 2, pkt_len
);
639 skb_put(skb
, pkt_len
);
641 skb
->protocol
= eth_type_trans(skb
, net
);
645 kaweth
->stats
.rx_packets
++;
646 kaweth
->stats
.rx_bytes
+= pkt_len
;
649 kaweth_resubmit_rx_urb(kaweth
, GFP_ATOMIC
);
652 /****************************************************************
654 ****************************************************************/
655 static int kaweth_open(struct net_device
*net
)
657 struct kaweth_device
*kaweth
= netdev_priv(net
);
660 dbg("Opening network device.");
662 res
= usb_autopm_get_interface(kaweth
->intf
);
664 err("Interface cannot be resumed.");
667 res
= kaweth_resubmit_rx_urb(kaweth
, GFP_KERNEL
);
674 usb_rcvintpipe(kaweth
->dev
, 3),
679 250); /* overriding the descriptor */
680 kaweth
->irq_urb
->transfer_dma
= kaweth
->intbufferhandle
;
681 kaweth
->irq_urb
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
683 res
= usb_submit_urb(kaweth
->irq_urb
, GFP_KERNEL
);
685 usb_kill_urb(kaweth
->rx_urb
);
690 netif_start_queue(net
);
692 kaweth_async_set_rx_mode(kaweth
);
696 usb_autopm_enable(kaweth
->intf
);
700 /****************************************************************
702 ****************************************************************/
703 static void kaweth_kill_urbs(struct kaweth_device
*kaweth
)
705 usb_kill_urb(kaweth
->irq_urb
);
706 usb_kill_urb(kaweth
->rx_urb
);
707 usb_kill_urb(kaweth
->tx_urb
);
709 flush_scheduled_work();
711 /* a scheduled work may have resubmitted,
713 usb_kill_urb(kaweth
->irq_urb
);
714 usb_kill_urb(kaweth
->rx_urb
);
717 /****************************************************************
719 ****************************************************************/
720 static int kaweth_close(struct net_device
*net
)
722 struct kaweth_device
*kaweth
= netdev_priv(net
);
724 netif_stop_queue(net
);
727 kaweth
->status
|= KAWETH_STATUS_CLOSING
;
729 kaweth_kill_urbs(kaweth
);
731 kaweth
->status
&= ~KAWETH_STATUS_CLOSING
;
733 usb_autopm_enable(kaweth
->intf
);
738 static void kaweth_get_drvinfo(struct net_device
*dev
, struct ethtool_drvinfo
*info
)
740 struct kaweth_device
*kaweth
= netdev_priv(dev
);
742 strlcpy(info
->driver
, driver_name
, sizeof(info
->driver
));
743 usb_make_path(kaweth
->dev
, info
->bus_info
, sizeof (info
->bus_info
));
746 static u32
kaweth_get_link(struct net_device
*dev
)
748 struct kaweth_device
*kaweth
= netdev_priv(dev
);
750 return kaweth
->linkstate
;
753 static struct ethtool_ops ops
= {
754 .get_drvinfo
= kaweth_get_drvinfo
,
755 .get_link
= kaweth_get_link
758 /****************************************************************
759 * kaweth_usb_transmit_complete
760 ****************************************************************/
761 static void kaweth_usb_transmit_complete(struct urb
*urb
)
763 struct kaweth_device
*kaweth
= urb
->context
;
764 struct sk_buff
*skb
= kaweth
->tx_skb
;
766 if (unlikely(urb
->status
!= 0))
767 if (urb
->status
!= -ENOENT
)
768 dbg("%s: TX status %d.", kaweth
->net
->name
, urb
->status
);
770 netif_wake_queue(kaweth
->net
);
771 dev_kfree_skb_irq(skb
);
774 /****************************************************************
776 ****************************************************************/
777 static int kaweth_start_xmit(struct sk_buff
*skb
, struct net_device
*net
)
779 struct kaweth_device
*kaweth
= netdev_priv(net
);
780 __le16
*private_header
;
784 spin_lock(&kaweth
->device_lock
);
786 kaweth_async_set_rx_mode(kaweth
);
787 netif_stop_queue(net
);
788 if (IS_BLOCKED(kaweth
->status
)) {
792 /* We now decide whether we can put our special header into the sk_buff */
793 if (skb_cloned(skb
) || skb_headroom(skb
) < 2) {
794 /* no such luck - we make our own */
795 struct sk_buff
*copied_skb
;
796 copied_skb
= skb_copy_expand(skb
, 2, 0, GFP_ATOMIC
);
797 dev_kfree_skb_irq(skb
);
800 kaweth
->stats
.tx_errors
++;
801 netif_start_queue(net
);
802 spin_unlock(&kaweth
->device_lock
);
807 private_header
= (__le16
*)__skb_push(skb
, 2);
808 *private_header
= cpu_to_le16(skb
->len
-2);
809 kaweth
->tx_skb
= skb
;
811 usb_fill_bulk_urb(kaweth
->tx_urb
,
813 usb_sndbulkpipe(kaweth
->dev
, 2),
816 kaweth_usb_transmit_complete
,
820 if((res
= usb_submit_urb(kaweth
->tx_urb
, GFP_ATOMIC
)))
822 warn("kaweth failed tx_urb %d", res
);
824 kaweth
->stats
.tx_errors
++;
826 netif_start_queue(net
);
827 dev_kfree_skb_irq(skb
);
831 kaweth
->stats
.tx_packets
++;
832 kaweth
->stats
.tx_bytes
+= skb
->len
;
833 net
->trans_start
= jiffies
;
836 spin_unlock(&kaweth
->device_lock
);
841 /****************************************************************
843 ****************************************************************/
844 static void kaweth_set_rx_mode(struct net_device
*net
)
846 struct kaweth_device
*kaweth
= netdev_priv(net
);
848 __u16 packet_filter_bitmap
= KAWETH_PACKET_FILTER_DIRECTED
|
849 KAWETH_PACKET_FILTER_BROADCAST
|
850 KAWETH_PACKET_FILTER_MULTICAST
;
852 dbg("Setting Rx mode to %d", packet_filter_bitmap
);
854 netif_stop_queue(net
);
856 if (net
->flags
& IFF_PROMISC
) {
857 packet_filter_bitmap
|= KAWETH_PACKET_FILTER_PROMISCUOUS
;
859 else if ((net
->mc_count
) || (net
->flags
& IFF_ALLMULTI
)) {
860 packet_filter_bitmap
|= KAWETH_PACKET_FILTER_ALL_MULTICAST
;
863 kaweth
->packet_filter_bitmap
= packet_filter_bitmap
;
864 netif_wake_queue(net
);
867 /****************************************************************
868 * kaweth_async_set_rx_mode
869 ****************************************************************/
870 static void kaweth_async_set_rx_mode(struct kaweth_device
*kaweth
)
872 __u16 packet_filter_bitmap
= kaweth
->packet_filter_bitmap
;
873 kaweth
->packet_filter_bitmap
= 0;
874 if (packet_filter_bitmap
== 0)
879 result
= kaweth_control(kaweth
,
880 usb_sndctrlpipe(kaweth
->dev
, 0),
881 KAWETH_COMMAND_SET_PACKET_FILTER
,
882 USB_TYPE_VENDOR
| USB_DIR_OUT
| USB_RECIP_DEVICE
,
883 packet_filter_bitmap
,
885 (void *)&kaweth
->scratch
,
887 KAWETH_CONTROL_TIMEOUT
);
890 err("Failed to set Rx mode: %d", result
);
893 dbg("Set Rx mode to %d", packet_filter_bitmap
);
898 /****************************************************************
899 * kaweth_netdev_stats
900 ****************************************************************/
901 static struct net_device_stats
*kaweth_netdev_stats(struct net_device
*dev
)
903 struct kaweth_device
*kaweth
= netdev_priv(dev
);
904 return &kaweth
->stats
;
907 /****************************************************************
909 ****************************************************************/
910 static void kaweth_tx_timeout(struct net_device
*net
)
912 struct kaweth_device
*kaweth
= netdev_priv(net
);
914 warn("%s: Tx timed out. Resetting.", net
->name
);
915 kaweth
->stats
.tx_errors
++;
916 net
->trans_start
= jiffies
;
918 usb_unlink_urb(kaweth
->tx_urb
);
921 /****************************************************************
923 ****************************************************************/
924 static int kaweth_suspend(struct usb_interface
*intf
, pm_message_t message
)
926 struct kaweth_device
*kaweth
= usb_get_intfdata(intf
);
929 dbg("Suspending device");
930 spin_lock_irqsave(&kaweth
->device_lock
, flags
);
931 kaweth
->status
|= KAWETH_STATUS_SUSPENDING
;
932 spin_unlock_irqrestore(&kaweth
->device_lock
, flags
);
934 kaweth_kill_urbs(kaweth
);
938 /****************************************************************
940 ****************************************************************/
941 static int kaweth_resume(struct usb_interface
*intf
)
943 struct kaweth_device
*kaweth
= usb_get_intfdata(intf
);
946 dbg("Resuming device");
947 spin_lock_irqsave(&kaweth
->device_lock
, flags
);
948 kaweth
->status
&= ~KAWETH_STATUS_SUSPENDING
;
949 spin_unlock_irqrestore(&kaweth
->device_lock
, flags
);
953 kaweth_resubmit_rx_urb(kaweth
, GFP_NOIO
);
954 kaweth_resubmit_int_urb(kaweth
, GFP_NOIO
);
959 /****************************************************************
961 ****************************************************************/
962 static int kaweth_probe(
963 struct usb_interface
*intf
,
964 const struct usb_device_id
*id
/* from id_table */
967 struct usb_device
*dev
= interface_to_usbdev(intf
);
968 struct kaweth_device
*kaweth
;
969 struct net_device
*netdev
;
970 const eth_addr_t bcast_addr
= { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
973 dbg("Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x",
975 le16_to_cpu(dev
->descriptor
.idVendor
),
976 le16_to_cpu(dev
->descriptor
.idProduct
),
977 le16_to_cpu(dev
->descriptor
.bcdDevice
));
979 dbg("Device at %p", dev
);
981 dbg("Descriptor length: %x type: %x",
982 (int)dev
->descriptor
.bLength
,
983 (int)dev
->descriptor
.bDescriptorType
);
985 netdev
= alloc_etherdev(sizeof(*kaweth
));
989 kaweth
= netdev_priv(netdev
);
991 kaweth
->net
= netdev
;
993 spin_lock_init(&kaweth
->device_lock
);
994 init_waitqueue_head(&kaweth
->term_wait
);
998 kaweth_reset(kaweth
);
1001 * If high byte of bcdDevice is nonzero, firmware is already
1002 * downloaded. Don't try to do it again, or we'll hang the device.
1005 if (le16_to_cpu(dev
->descriptor
.bcdDevice
) >> 8) {
1006 info("Firmware present in device.");
1008 /* Download the firmware */
1009 info("Downloading firmware...");
1010 kaweth
->firmware_buf
= (__u8
*)__get_free_page(GFP_KERNEL
);
1011 if ((result
= kaweth_download_firmware(kaweth
,
1013 len_kaweth_new_code
,
1016 err("Error downloading firmware (%d)", result
);
1020 if ((result
= kaweth_download_firmware(kaweth
,
1021 kaweth_new_code_fix
,
1022 len_kaweth_new_code_fix
,
1025 err("Error downloading firmware fix (%d)", result
);
1029 if ((result
= kaweth_download_firmware(kaweth
,
1030 kaweth_trigger_code
,
1031 len_kaweth_trigger_code
,
1034 err("Error downloading trigger code (%d)", result
);
1039 if ((result
= kaweth_download_firmware(kaweth
,
1040 kaweth_trigger_code_fix
,
1041 len_kaweth_trigger_code_fix
,
1044 err("Error downloading trigger code fix (%d)", result
);
1049 if ((result
= kaweth_trigger_firmware(kaweth
, 126)) < 0) {
1050 err("Error triggering firmware (%d)", result
);
1054 /* Device will now disappear for a moment... */
1055 info("Firmware loaded. I'll be back...");
1057 free_page((unsigned long)kaweth
->firmware_buf
);
1058 free_netdev(netdev
);
1062 result
= kaweth_read_configuration(kaweth
);
1065 err("Error reading configuration (%d), no net device created", result
);
1066 goto err_free_netdev
;
1069 info("Statistics collection: %x", kaweth
->configuration
.statistics_mask
);
1070 info("Multicast filter limit: %x", kaweth
->configuration
.max_multicast_filters
& ((1 << 15) - 1));
1071 info("MTU: %d", le16_to_cpu(kaweth
->configuration
.segment_size
));
1072 info("Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
1073 (int)kaweth
->configuration
.hw_addr
[0],
1074 (int)kaweth
->configuration
.hw_addr
[1],
1075 (int)kaweth
->configuration
.hw_addr
[2],
1076 (int)kaweth
->configuration
.hw_addr
[3],
1077 (int)kaweth
->configuration
.hw_addr
[4],
1078 (int)kaweth
->configuration
.hw_addr
[5]);
1080 if(!memcmp(&kaweth
->configuration
.hw_addr
,
1082 sizeof(bcast_addr
))) {
1083 err("Firmware not functioning properly, no net device created");
1084 goto err_free_netdev
;
1087 if(kaweth_set_urb_size(kaweth
, KAWETH_BUF_SIZE
) < 0) {
1088 dbg("Error setting URB size");
1089 goto err_free_netdev
;
1092 if(kaweth_set_sofs_wait(kaweth
, KAWETH_SOFS_TO_WAIT
) < 0) {
1093 err("Error setting SOFS wait");
1094 goto err_free_netdev
;
1097 result
= kaweth_set_receive_filter(kaweth
,
1098 KAWETH_PACKET_FILTER_DIRECTED
|
1099 KAWETH_PACKET_FILTER_BROADCAST
|
1100 KAWETH_PACKET_FILTER_MULTICAST
);
1103 err("Error setting receive filter");
1104 goto err_free_netdev
;
1107 dbg("Initializing net device.");
1109 kaweth
->intf
= intf
;
1111 kaweth
->tx_urb
= usb_alloc_urb(0, GFP_KERNEL
);
1112 if (!kaweth
->tx_urb
)
1113 goto err_free_netdev
;
1114 kaweth
->rx_urb
= usb_alloc_urb(0, GFP_KERNEL
);
1115 if (!kaweth
->rx_urb
)
1117 kaweth
->irq_urb
= usb_alloc_urb(0, GFP_KERNEL
);
1118 if (!kaweth
->irq_urb
)
1121 kaweth
->intbuffer
= usb_buffer_alloc( kaweth
->dev
,
1124 &kaweth
->intbufferhandle
);
1125 if (!kaweth
->intbuffer
)
1126 goto err_tx_and_rx_and_irq
;
1127 kaweth
->rx_buf
= usb_buffer_alloc( kaweth
->dev
,
1130 &kaweth
->rxbufferhandle
);
1131 if (!kaweth
->rx_buf
)
1132 goto err_all_but_rxbuf
;
1134 memcpy(netdev
->broadcast
, &bcast_addr
, sizeof(bcast_addr
));
1135 memcpy(netdev
->dev_addr
, &kaweth
->configuration
.hw_addr
,
1136 sizeof(kaweth
->configuration
.hw_addr
));
1138 netdev
->open
= kaweth_open
;
1139 netdev
->stop
= kaweth_close
;
1141 netdev
->watchdog_timeo
= KAWETH_TX_TIMEOUT
;
1142 netdev
->tx_timeout
= kaweth_tx_timeout
;
1144 netdev
->hard_start_xmit
= kaweth_start_xmit
;
1145 netdev
->set_multicast_list
= kaweth_set_rx_mode
;
1146 netdev
->get_stats
= kaweth_netdev_stats
;
1147 netdev
->mtu
= le16_to_cpu(kaweth
->configuration
.segment_size
);
1148 SET_ETHTOOL_OPS(netdev
, &ops
);
1150 /* kaweth is zeroed as part of alloc_netdev */
1152 INIT_DELAYED_WORK(&kaweth
->lowmem_work
, kaweth_resubmit_tl
);
1154 usb_set_intfdata(intf
, kaweth
);
1157 // dma_supported() is deeply broken on almost all architectures
1158 if (dma_supported (&intf
->dev
, 0xffffffffffffffffULL
))
1159 kaweth
->net
->features
|= NETIF_F_HIGHDMA
;
1162 SET_NETDEV_DEV(netdev
, &intf
->dev
);
1163 if (register_netdev(netdev
) != 0) {
1164 err("Error registering netdev.");
1168 info("kaweth interface created at %s", kaweth
->net
->name
);
1170 dbg("Kaweth probe returning.");
1175 usb_set_intfdata(intf
, NULL
);
1176 usb_buffer_free(kaweth
->dev
, KAWETH_BUF_SIZE
, (void *)kaweth
->rx_buf
, kaweth
->rxbufferhandle
);
1178 usb_buffer_free(kaweth
->dev
, INTBUFFERSIZE
, (void *)kaweth
->intbuffer
, kaweth
->intbufferhandle
);
1179 err_tx_and_rx_and_irq
:
1180 usb_free_urb(kaweth
->irq_urb
);
1182 usb_free_urb(kaweth
->rx_urb
);
1184 usb_free_urb(kaweth
->tx_urb
);
1186 free_netdev(netdev
);
1191 /****************************************************************
1193 ****************************************************************/
1194 static void kaweth_disconnect(struct usb_interface
*intf
)
1196 struct kaweth_device
*kaweth
= usb_get_intfdata(intf
);
1197 struct net_device
*netdev
;
1199 info("Unregistering");
1201 usb_set_intfdata(intf
, NULL
);
1203 warn("unregistering non-existant device");
1206 netdev
= kaweth
->net
;
1208 dbg("Unregistering net device");
1209 unregister_netdev(netdev
);
1211 usb_free_urb(kaweth
->rx_urb
);
1212 usb_free_urb(kaweth
->tx_urb
);
1213 usb_free_urb(kaweth
->irq_urb
);
1215 usb_buffer_free(kaweth
->dev
, KAWETH_BUF_SIZE
, (void *)kaweth
->rx_buf
, kaweth
->rxbufferhandle
);
1216 usb_buffer_free(kaweth
->dev
, INTBUFFERSIZE
, (void *)kaweth
->intbuffer
, kaweth
->intbufferhandle
);
1218 free_netdev(netdev
);
1222 // FIXME this completion stuff is a modified clone of
1223 // an OLD version of some stuff in usb.c ...
1224 struct usb_api_data
{
1225 wait_queue_head_t wqh
;
1229 /*-------------------------------------------------------------------*
1230 * completion handler for compatibility wrappers (sync control/bulk) *
1231 *-------------------------------------------------------------------*/
1232 static void usb_api_blocking_completion(struct urb
*urb
)
1234 struct usb_api_data
*awd
= (struct usb_api_data
*)urb
->context
;
1240 /*-------------------------------------------------------------------*
1241 * COMPATIBILITY STUFF *
1242 *-------------------------------------------------------------------*/
1244 // Starts urb and waits for completion or timeout
1245 static int usb_start_wait_urb(struct urb
*urb
, int timeout
, int* actual_length
)
1247 struct usb_api_data awd
;
1250 init_waitqueue_head(&awd
.wqh
);
1253 urb
->context
= &awd
;
1254 status
= usb_submit_urb(urb
, GFP_NOIO
);
1256 // something went wrong
1261 if (!wait_event_timeout(awd
.wqh
, awd
.done
, timeout
)) {
1263 warn("usb_control/bulk_msg: timeout");
1264 usb_kill_urb(urb
); // remove urb safely
1265 status
= -ETIMEDOUT
;
1268 status
= urb
->status
;
1271 if (actual_length
) {
1272 *actual_length
= urb
->actual_length
;
1279 /*-------------------------------------------------------------------*/
1280 // returns status (negative) or length (positive)
1281 static int kaweth_internal_control_msg(struct usb_device
*usb_dev
,
1283 struct usb_ctrlrequest
*cmd
, void *data
,
1284 int len
, int timeout
)
1288 int length
= 0; /* shut up GCC */
1290 urb
= usb_alloc_urb(0, GFP_NOIO
);
1294 usb_fill_control_urb(urb
, usb_dev
, pipe
, (unsigned char*)cmd
, data
,
1295 len
, usb_api_blocking_completion
, NULL
);
1297 retv
= usb_start_wait_urb(urb
, timeout
, &length
);
1307 /****************************************************************
1309 ****************************************************************/
1310 static int __init
kaweth_init(void)
1312 dbg("Driver loading");
1313 return usb_register(&kaweth_driver
);
1316 /****************************************************************
1318 ****************************************************************/
1319 static void __exit
kaweth_exit(void)
1321 usb_deregister(&kaweth_driver
);
1324 module_init(kaweth_init
);
1325 module_exit(kaweth_exit
);