iPXE
dm96xx.c
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1 /*
2  * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of the
7  * License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  * 02110-1301, USA.
18  *
19  * You can also choose to distribute this program under the terms of
20  * the Unmodified Binary Distribution Licence (as given in the file
21  * COPYING.UBDL), provided that you have satisfied its requirements.
22  */
23 
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25 
26 #include <string.h>
27 #include <unistd.h>
28 #include <errno.h>
29 #include <ipxe/ethernet.h>
30 #include <ipxe/usb.h>
31 #include <ipxe/usbnet.h>
32 #include "dm96xx.h"
33 
34 /** @file
35  *
36  * Davicom DM96xx USB Ethernet driver
37  *
38  */
39 
40 /******************************************************************************
41  *
42  * Register operations
43  *
44  ******************************************************************************
45  */
46 
47 /**
48  * Reset device
49  *
50  * @v dm96xx DM96xx device
51  * @ret rc Return status code
52  */
53 static int dm96xx_reset ( struct dm96xx_device *dm96xx ) {
54  int ncr;
55  int rc;
56 
57  /* Reset device */
58  if ( ( rc = dm96xx_write_register ( dm96xx, DM96XX_NCR,
59  DM96XX_NCR_RST ) ) != 0 ) {
60  DBGC ( dm96xx, "DM96XX %p could not reset: %s\n",
61  dm96xx, strerror ( rc ) );
62  return rc;
63  }
64 
65  /* Wait for reset to complete */
67 
68  /* Check that reset has completed */
69  ncr = dm96xx_read_register ( dm96xx, DM96XX_NCR );
70  if ( ncr < 0 ) {
71  rc = ncr;
72  DBGC ( dm96xx, "DM96XX %p failed to reset: %s\n",
73  dm96xx, strerror ( rc ) );
74  return rc;
75  }
76  if ( ncr & DM96XX_NCR_RST ) {
77  DBGC ( dm96xx, "DM96XX %p failed to reset (NCR=%#02x)\n",
78  dm96xx, ncr );
79  return -EIO;
80  }
81 
82  return 0;
83 }
84 
85 /**
86  * Read MAC address
87  *
88  * @v dm96xx DM96xx device
89  * @v mac MAC address to fill in
90  * @ret rc Return status code
91  */
92 static int dm96xx_read_mac ( struct dm96xx_device *dm96xx, uint8_t *mac ) {
93  int rc;
94 
95  /* Read MAC address */
96  if ( ( rc = dm96xx_read_registers ( dm96xx, DM96XX_PAR, mac,
97  ETH_ALEN ) ) != 0 ) {
98  DBGC ( dm96xx, "DM96XX %p could not read MAC address: %s\n",
99  dm96xx, strerror ( rc ) );
100  return rc;
101  }
102 
103  return 0;
104 }
105 
106 /**
107  * Write MAC address
108  *
109  * @v dm96xx DM96xx device
110  * @v mac MAC address
111  * @ret rc Return status code
112  */
113 static int dm96xx_write_mac ( struct dm96xx_device *dm96xx, uint8_t *mac ) {
114  int rc;
115 
116  /* Write MAC address */
117  if ( ( rc = dm96xx_write_registers ( dm96xx, DM96XX_PAR, mac,
118  ETH_ALEN ) ) != 0 ) {
119  DBGC ( dm96xx, "DM96XX %p could not write MAC address: %s\n",
120  dm96xx, strerror ( rc ) );
121  return rc;
122  }
123 
124  return 0;
125 }
126 
127 /**
128  * Update link status based on network status register
129  *
130  * @v dm96xx DM96xx device
131  * @v nsr Network status register
132  */
133 static void dm96xx_link_nsr ( struct dm96xx_device *dm96xx, unsigned int nsr ) {
134  struct net_device *netdev = dm96xx->netdev;
135 
136  if ( nsr & DM96XX_NSR_LINKST ) {
137  if ( ! netdev_link_ok ( netdev ) )
139  } else {
140  if ( netdev_link_ok ( netdev ) )
142  }
143 }
144 
145 /**
146  * Get link status
147  *
148  * @v dm96xx DM96xx device
149  * @ret rc Return status code
150  */
151 static int dm96xx_check_link ( struct dm96xx_device *dm96xx ) {
152  int nsr;
153  int rc;
154 
155  /* Read network status register */
156  nsr = dm96xx_read_register ( dm96xx, DM96XX_NSR );
157  if ( nsr < 0 ) {
158  rc = nsr;
159  DBGC ( dm96xx, "DM96XX %p could not read network status: %s\n",
160  dm96xx, strerror ( rc ) );
161  return rc;
162  }
163 
164  /* Update link status */
165  dm96xx_link_nsr ( dm96xx, nsr );
166 
167  return 0;
168 }
169 
170 /**
171  * Set DM9601-compatible RX header mode
172  *
173  * @v dm96xx DM96xx device
174  * @ret rc Return status code
175  */
176 static int dm96xx_rx_mode ( struct dm96xx_device *dm96xx ) {
177  int chipr;
178  int mode_ctl;
179  int rc;
180 
181  /* Get chip revision */
182  chipr = dm96xx_read_register ( dm96xx, DM96XX_CHIPR );
183  if ( chipr < 0 ) {
184  rc = chipr;
185  DBGC ( dm96xx, "DM96XX %p could not read chip revision: %s\n",
186  dm96xx, strerror ( rc ) );
187  return rc;
188  }
189 
190  /* Do nothing if device is a DM9601 anyway */
191  if ( chipr == DM96XX_CHIPR_9601 )
192  return 0;
193 
194  /* Read current mode control */
195  mode_ctl = dm96xx_read_register ( dm96xx, DM96XX_MODE_CTL );
196  if ( mode_ctl < 0 ) {
197  rc = mode_ctl;
198  DBGC ( dm96xx, "DM96XX %p could not read mode control: %s\n",
199  dm96xx, strerror ( rc ) );
200  return rc;
201  }
202 
203  /* Write mode control */
204  mode_ctl &= ~DM96XX_MODE_CTL_MODE;
205  if ( ( rc = dm96xx_write_register ( dm96xx, DM96XX_MODE_CTL,
206  mode_ctl ) ) != 0 ) {
207  DBGC ( dm96xx, "DM96XX %p could not write mode control: %s\n",
208  dm96xx, strerror ( rc ) );
209  return rc;
210  }
211 
212  return 0;
213 }
214 
215 /******************************************************************************
216  *
217  * Endpoint operations
218  *
219  ******************************************************************************
220  */
221 
222 /**
223  * Complete interrupt transfer
224  *
225  * @v ep USB endpoint
226  * @v iobuf I/O buffer
227  * @v rc Completion status code
228  */
229 static void dm96xx_intr_complete ( struct usb_endpoint *ep,
230  struct io_buffer *iobuf, int rc ) {
231  struct dm96xx_device *dm96xx = container_of ( ep, struct dm96xx_device,
232  usbnet.intr );
233  struct net_device *netdev = dm96xx->netdev;
234  struct dm96xx_interrupt *intr;
235  size_t len = iob_len ( iobuf );
236 
237  /* Ignore packets cancelled when the endpoint closes */
238  if ( ! ep->open )
239  goto done;
240 
241  /* Record USB errors against the network device */
242  if ( rc != 0 ) {
243  DBGC ( dm96xx, "DM96XX %p interrupt failed: %s\n",
244  dm96xx, strerror ( rc ) );
245  DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) );
246  netdev_rx_err ( netdev, NULL, rc );
247  goto done;
248  }
249 
250  /* Extract message header */
251  if ( len < sizeof ( *intr ) ) {
252  DBGC ( dm96xx, "DM96XX %p underlength interrupt:\n", dm96xx );
253  DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) );
255  goto done;
256  }
257  intr = iobuf->data;
258 
259  /* Update link status */
260  dm96xx_link_nsr ( dm96xx, intr->nsr );
261 
262  done:
263  /* Free I/O buffer */
264  free_iob ( iobuf );
265 }
266 
267 /** Interrupt endpoint operations */
270 };
271 
272 /**
273  * Complete bulk IN transfer
274  *
275  * @v ep USB endpoint
276  * @v iobuf I/O buffer
277  * @v rc Completion status code
278  */
279 static void dm96xx_in_complete ( struct usb_endpoint *ep,
280  struct io_buffer *iobuf, int rc ) {
281  struct dm96xx_device *dm96xx = container_of ( ep, struct dm96xx_device,
282  usbnet.in );
283  struct net_device *netdev = dm96xx->netdev;
284  struct dm96xx_rx_header *header;
285 
286  /* Ignore packets cancelled when the endpoint closes */
287  if ( ! ep->open ) {
288  free_iob ( iobuf );
289  return;
290  }
291 
292  /* Record USB errors against the network device */
293  if ( rc != 0 ) {
294  DBGC ( dm96xx, "DM96XX %p bulk IN failed: %s\n",
295  dm96xx, strerror ( rc ) );
296  goto err;
297  }
298 
299  /* Sanity check */
300  if ( iob_len ( iobuf ) < ( sizeof ( *header ) + 4 /* CRC */ ) ) {
301  DBGC ( dm96xx, "DM96XX %p underlength bulk IN\n", dm96xx );
302  DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) );
303  rc = -EINVAL;
304  goto err;
305  }
306 
307  /* Strip header and CRC */
308  header = iobuf->data;
309  iob_pull ( iobuf, sizeof ( *header ) );
310  iob_unput ( iobuf, 4 /* CRC */ );
311 
312  /* Check status */
313  if ( header->rsr & ~DM96XX_RSR_MF ) {
314  DBGC ( dm96xx, "DM96XX %p receive error %02x:\n",
315  dm96xx, header->rsr );
316  DBGC_HDA ( dm96xx, 0, iobuf->data, iob_len ( iobuf ) );
317  rc = -EIO;
318  goto err;
319  }
320 
321  /* Hand off to network stack */
322  netdev_rx ( netdev, iob_disown ( iobuf ) );
323  return;
324 
325  err:
326  /* Hand off to network stack */
327  netdev_rx_err ( netdev, iob_disown ( iobuf ), rc );
328 }
329 
330 /** Bulk IN endpoint operations */
333 };
334 
335 /**
336  * Transmit packet
337  *
338  * @v dm96xx DM96xx device
339  * @v iobuf I/O buffer
340  * @ret rc Return status code
341  */
342 static int dm96xx_out_transmit ( struct dm96xx_device *dm96xx,
343  struct io_buffer *iobuf ) {
344  struct dm96xx_tx_header *header;
345  size_t len = iob_len ( iobuf );
346  int rc;
347 
348  /* Prepend header */
349  if ( ( rc = iob_ensure_headroom ( iobuf, sizeof ( *header ) ) ) != 0 )
350  return rc;
351  header = iob_push ( iobuf, sizeof ( *header ) );
352  header->len = cpu_to_le16 ( len );
353 
354  /* Enqueue I/O buffer */
355  if ( ( rc = usb_stream ( &dm96xx->usbnet.out, iobuf, 0 ) ) != 0 )
356  return rc;
357 
358  return 0;
359 }
360 
361 /**
362  * Complete bulk OUT transfer
363  *
364  * @v ep USB endpoint
365  * @v iobuf I/O buffer
366  * @v rc Completion status code
367  */
368 static void dm96xx_out_complete ( struct usb_endpoint *ep,
369  struct io_buffer *iobuf, int rc ) {
370  struct dm96xx_device *dm96xx = container_of ( ep, struct dm96xx_device,
371  usbnet.out );
372  struct net_device *netdev = dm96xx->netdev;
373 
374  /* Report TX completion */
375  netdev_tx_complete_err ( netdev, iobuf, rc );
376 }
377 
378 /** Bulk OUT endpoint operations */
381 };
382 
383 /******************************************************************************
384  *
385  * Network device interface
386  *
387  ******************************************************************************
388  */
389 
390 /**
391  * Open network device
392  *
393  * @v netdev Network device
394  * @ret rc Return status code
395  */
396 static int dm96xx_open ( struct net_device *netdev ) {
397  struct dm96xx_device *dm96xx = netdev->priv;
398  unsigned int rcr;
399  int rc;
400 
401  /* Set DM9601-compatible RX header mode */
402  if ( ( rc = dm96xx_rx_mode ( dm96xx ) ) != 0 )
403  goto err_rx_mode;
404 
405  /* Write MAC address */
406  if ( ( rc = dm96xx_write_mac ( dm96xx, netdev->ll_addr ) ) != 0 )
407  goto err_write_mac;
408 
409  /* Open USB network device */
410  if ( ( rc = usbnet_open ( &dm96xx->usbnet ) ) != 0 ) {
411  DBGC ( dm96xx, "DM96XX %p could not open: %s\n",
412  dm96xx, strerror ( rc ) );
413  goto err_open;
414  }
415 
416  /* Set receive filters */
418  DM96XX_RCR_RXEN );
419  if ( ( rc = dm96xx_write_register ( dm96xx, DM96XX_RCR, rcr ) ) != 0 ) {
420  DBGC ( dm96xx, "DM96XX %p could not write receive filters: "
421  "%s\n", dm96xx, strerror ( rc ) );
422  goto err_write_rcr;
423  }
424 
425  /* Update link status */
426  if ( ( rc = dm96xx_check_link ( dm96xx ) ) != 0 )
427  goto err_check_link;
428 
429  return 0;
430 
431  err_check_link:
432  err_write_rcr:
433  usbnet_close ( &dm96xx->usbnet );
434  err_open:
435  err_write_mac:
436  err_rx_mode:
437  return rc;
438 }
439 
440 /**
441  * Close network device
442  *
443  * @v netdev Network device
444  */
445 static void dm96xx_close ( struct net_device *netdev ) {
446  struct dm96xx_device *dm96xx = netdev->priv;
447 
448  /* Close USB network device */
449  usbnet_close ( &dm96xx->usbnet );
450 
451  /* Reset device */
452  dm96xx_reset ( dm96xx );
453 }
454 
455 /**
456  * Transmit packet
457  *
458  * @v netdev Network device
459  * @v iobuf I/O buffer
460  * @ret rc Return status code
461  */
462 static int dm96xx_transmit ( struct net_device *netdev,
463  struct io_buffer *iobuf ) {
464  struct dm96xx_device *dm96xx = netdev->priv;
465  int rc;
466 
467  /* Transmit packet */
468  if ( ( rc = dm96xx_out_transmit ( dm96xx, iobuf ) ) != 0 )
469  return rc;
470 
471  return 0;
472 }
473 
474 /**
475  * Poll for completed and received packets
476  *
477  * @v netdev Network device
478  */
479 static void dm96xx_poll ( struct net_device *netdev ) {
480  struct dm96xx_device *dm96xx = netdev->priv;
481  int rc;
482 
483  /* Poll USB bus */
484  usb_poll ( dm96xx->bus );
485 
486  /* Refill endpoints */
487  if ( ( rc = usbnet_refill ( &dm96xx->usbnet ) ) != 0 )
488  netdev_rx_err ( netdev, NULL, rc );
489 }
490 
491 /** DM96xx network device operations */
493  .open = dm96xx_open,
494  .close = dm96xx_close,
495  .transmit = dm96xx_transmit,
496  .poll = dm96xx_poll,
497 };
498 
499 /******************************************************************************
500  *
501  * USB interface
502  *
503  ******************************************************************************
504  */
505 
506 /**
507  * Probe device
508  *
509  * @v func USB function
510  * @v config Configuration descriptor
511  * @ret rc Return status code
512  */
513 static int dm96xx_probe ( struct usb_function *func,
514  struct usb_configuration_descriptor *config ) {
515  struct usb_device *usb = func->usb;
516  struct net_device *netdev;
517  struct dm96xx_device *dm96xx;
518  int rc;
519 
520  /* Allocate and initialise structure */
521  netdev = alloc_etherdev ( sizeof ( *dm96xx ) );
522  if ( ! netdev ) {
523  rc = -ENOMEM;
524  goto err_alloc;
525  }
527  netdev->dev = &func->dev;
528  dm96xx = netdev->priv;
529  memset ( dm96xx, 0, sizeof ( *dm96xx ) );
530  dm96xx->usb = usb;
531  dm96xx->bus = usb->port->hub->bus;
532  dm96xx->netdev = netdev;
533  usbnet_init ( &dm96xx->usbnet, func, &dm96xx_intr_operations,
535  usb_refill_init ( &dm96xx->usbnet.intr, 0, 0, DM96XX_INTR_MAX_FILL );
536  usb_refill_init ( &dm96xx->usbnet.in, 0, DM96XX_IN_MTU,
538  DBGC ( dm96xx, "DM96XX %p on %s\n", dm96xx, func->name );
539 
540  /* Describe USB network device */
541  if ( ( rc = usbnet_describe ( &dm96xx->usbnet, config ) ) != 0 ) {
542  DBGC ( dm96xx, "DM96XX %p could not describe: %s\n",
543  dm96xx, strerror ( rc ) );
544  goto err_describe;
545  }
546 
547  /* Reset device */
548  if ( ( rc = dm96xx_reset ( dm96xx ) ) != 0 )
549  goto err_reset;
550 
551  /* Read MAC address */
552  if ( ( rc = dm96xx_read_mac ( dm96xx, netdev->hw_addr ) ) != 0 )
553  goto err_read_mac;
554 
555  /* Get initial link status */
556  if ( ( rc = dm96xx_check_link ( dm96xx ) ) != 0 )
557  goto err_check_link;
558 
559  /* Register network device */
560  if ( ( rc = register_netdev ( netdev ) ) != 0 )
561  goto err_register;
562 
563  usb_func_set_drvdata ( func, netdev );
564  return 0;
565 
567  err_register:
568  err_check_link:
569  err_read_mac:
570  err_reset:
571  err_describe:
573  netdev_put ( netdev );
574  err_alloc:
575  return rc;
576 }
577 
578 /**
579  * Remove device
580  *
581  * @v func USB function
582  */
583 static void dm96xx_remove ( struct usb_function *func ) {
584  struct net_device *netdev = usb_func_get_drvdata ( func );
585 
588  netdev_put ( netdev );
589 }
590 
591 /** DM96xx device IDs */
592 static struct usb_device_id dm96xx_ids[] = {
593  {
594  .name = "dm9601-corega",
595  .vendor = 0x07aa,
596  .product = 0x9601,
597  },
598  {
599  .name = "dm9601",
600  .vendor = 0x0a46,
601  .product = 0x9601,
602  },
603  {
604  .name = "zt6688",
605  .vendor = 0x0a46,
606  .product = 0x6688,
607  },
608  {
609  .name = "st268",
610  .vendor = 0x0a46,
611  .product = 0x0268,
612  },
613  {
614  .name = "adm8515",
615  .vendor = 0x0a46,
616  .product = 0x8515,
617  },
618  {
619  .name = "dm9601-hirose",
620  .vendor = 0x0a47,
621  .product = 0x9601,
622  },
623  {
624  .name = "dm9601-8101",
625  .vendor = 0x0fe6,
626  .product = 0x8101,
627  },
628  {
629  .name = "dm9601-9700",
630  .vendor = 0x0fe6,
631  .product = 0x9700,
632  },
633  {
634  .name = "dm9000e",
635  .vendor = 0x0a46,
636  .product = 0x9000,
637  },
638  {
639  .name = "dm9620",
640  .vendor = 0x0a46,
641  .product = 0x9620,
642  },
643  {
644  .name = "dm9621A",
645  .vendor = 0x0a46,
646  .product = 0x9621,
647  },
648  {
649  .name = "dm9622",
650  .vendor = 0x0a46,
651  .product = 0x9622,
652  },
653  {
654  .name = "dm962Oa",
655  .vendor = 0x0a46,
656  .product = 0x0269,
657  },
658  {
659  .name = "dm9621a",
660  .vendor = 0x0a46,
661  .product = 0x1269,
662  },
663 };
664 
665 /** Davicom DM96xx driver */
666 struct usb_driver dm96xx_driver __usb_driver = {
667  .ids = dm96xx_ids,
668  .id_count = ( sizeof ( dm96xx_ids ) / sizeof ( dm96xx_ids[0] ) ),
670  .score = USB_SCORE_NORMAL,
671  .probe = dm96xx_probe,
672  .remove = dm96xx_remove,
673 };
#define iob_pull(iobuf, len)
Definition: iobuf.h:98
A USB driver.
Definition: usb.h:1363
static void dm96xx_intr_complete(struct usb_endpoint *ep, struct io_buffer *iobuf, int rc)
Complete interrupt transfer.
Definition: dm96xx.c:229
#define EINVAL
Invalid argument.
Definition: errno.h:428
struct arbelprm_rc_send_wqe rc
Definition: arbel.h:14
A USB device ID.
Definition: usb.h:1317
#define DM96XX_PAR
PHY address registers.
Definition: dm96xx.h:51
#define DM96XX_MODE_CTL_MODE
4-byte header mode
Definition: dm96xx.h:60
void(* complete)(struct usb_endpoint *ep, struct io_buffer *iobuf, int rc)
Complete transfer.
Definition: usb.h:481
void netdev_rx_err(struct net_device *netdev, struct io_buffer *iobuf, int rc)
Discard received packet.
Definition: netdevice.c:501
static int dm96xx_out_transmit(struct dm96xx_device *dm96xx, struct io_buffer *iobuf)
Transmit packet.
Definition: dm96xx.c:342
static void * usb_func_get_drvdata(struct usb_function *func)
Get USB function driver private data.
Definition: usb.h:701
#define DM96XX_NCR
Network control register.
Definition: dm96xx.h:32
const char * name
Name.
Definition: usb.h:659
static int dm96xx_write_registers(struct dm96xx_device *dm96xx, unsigned int offset, void *data, size_t len)
Write registers.
Definition: dm96xx.h:151
int(* open)(struct net_device *netdev)
Open network device.
Definition: netdevice.h:222
const char * name
Name.
Definition: usb.h:1319
Error codes.
static struct usb_endpoint_driver_operations dm96xx_in_operations
Bulk IN endpoint operations.
Definition: dm96xx.c:331
#define iob_push(iobuf, len)
Definition: iobuf.h:80
void free_iob(struct io_buffer *iobuf)
Free I/O buffer.
Definition: iobuf.c:145
#define DBGC(...)
Definition: compiler.h:505
#define DM96XX_INTR_MAX_FILL
Interrupt maximum fill level.
Definition: dm96xx.h:181
int usb_stream(struct usb_endpoint *ep, struct io_buffer *iobuf, int terminate)
Enqueue USB stream transfer.
Definition: usb.c:528
#define DM96XX_RCR
Receive control register.
Definition: dm96xx.h:40
#define DM96XX_NCR_RST
Software reset.
Definition: dm96xx.h:33
FILE_LICENCE(GPL2_OR_LATER_OR_UBDL)
struct usb_device * usb
USB device.
Definition: dm96xx.h:97
void netdev_link_down(struct net_device *netdev)
Mark network device as having link down.
Definition: netdevice.c:186
struct usb_bus * bus
USB bus.
Definition: dm96xx.h:99
static int dm96xx_check_link(struct dm96xx_device *dm96xx)
Get link status.
Definition: dm96xx.c:151
uint8_t mac[ETH_ALEN]
MAC address.
Definition: ena.h:24
int open
Endpoint is open.
Definition: usb.h:404
static void dm96xx_in_complete(struct usb_endpoint *ep, struct io_buffer *iobuf, int rc)
Complete bulk IN transfer.
Definition: dm96xx.c:279
struct usb_endpoint intr
Interrupt endpoint.
Definition: usbnet.h:27
static int dm96xx_read_mac(struct dm96xx_device *dm96xx, uint8_t *mac)
Read MAC address.
Definition: dm96xx.c:92
static void dm96xx_poll(struct net_device *netdev)
Poll for completed and received packets.
Definition: dm96xx.c:479
static void dm96xx_remove(struct usb_function *func)
Remove device.
Definition: dm96xx.c:583
struct usb_endpoint out
Bulk OUT endpoint.
Definition: usbnet.h:31
struct usb_driver dm96xx_driver __usb_driver
Davicom DM96xx driver.
Definition: dm96xx.c:666
static void netdev_init(struct net_device *netdev, struct net_device_operations *op)
Initialise a network device.
Definition: netdevice.h:498
#define ENOMEM
Not enough space.
Definition: errno.h:534
#define iob_disown(iobuf)
Disown an I/O buffer.
Definition: iobuf.h:208
A USB endpoint.
Definition: usb.h:389
#define DM96XX_MODE_CTL
RX header control/status register (DM9620+ only)
Definition: dm96xx.h:59
struct usb_port * port
USB port.
Definition: usb.h:710
static void netdev_put(struct net_device *netdev)
Drop reference to network device.
Definition: netdevice.h:555
#define container_of(ptr, type, field)
Get containing structure.
Definition: stddef.h:35
Ethernet protocol.
uint8_t intr
Interrupts enabled.
Definition: ena.h:14
void * priv
Driver private data.
Definition: netdevice.h:425
#define DBGC_HDA(...)
Definition: compiler.h:506
static void netdev_link_up(struct net_device *netdev)
Mark network device as having link up.
Definition: netdevice.h:768
DM96xx interrupt data.
Definition: dm96xx.h:63
void udelay(unsigned long usecs)
Delay for a fixed number of microseconds.
Definition: timer.c:60
static int dm96xx_read_register(struct dm96xx_device *dm96xx, unsigned int offset)
Read register.
Definition: dm96xx.h:131
static struct usb_endpoint_driver_operations dm96xx_intr_operations
Interrupt endpoint operations.
Definition: dm96xx.c:268
static void usb_refill_init(struct usb_endpoint *ep, size_t reserve, size_t len, unsigned int max)
Initialise USB endpoint refill.
Definition: usb.h:601
static int netdev_link_ok(struct net_device *netdev)
Check link state of network device.
Definition: netdevice.h:630
static int dm96xx_reset(struct dm96xx_device *dm96xx)
Reset device.
Definition: dm96xx.c:53
static struct net_device * netdev
Definition: gdbudp.c:52
#define DM96XX_CHIPR_9601
DM9601.
Definition: dm96xx.h:55
static void usb_func_set_drvdata(struct usb_function *func, void *priv)
Set USB function driver private data.
Definition: usb.h:690
void unregister_netdev(struct net_device *netdev)
Unregister network device.
Definition: netdevice.c:844
static void dm96xx_out_complete(struct usb_endpoint *ep, struct io_buffer *iobuf, int rc)
Complete bulk OUT transfer.
Definition: dm96xx.c:368
int usbnet_refill(struct usbnet_device *usbnet)
Refill USB network device bulk IN and interrupt endpoints.
Definition: usbnet.c:151
A USB device.
Definition: usb.h:706
static int dm96xx_write_register(struct dm96xx_device *dm96xx, unsigned int offset, uint8_t value)
Write register.
Definition: dm96xx.h:167
static void usb_poll(struct usb_bus *bus)
Poll USB bus.
Definition: usb.h:1049
#define iob_unput(iobuf, len)
Definition: iobuf.h:131
char * strerror(int errno)
Retrieve string representation of error number.
Definition: strerror.c:78
static struct net_device_operations dm96xx_operations
DM96xx network device operations.
Definition: dm96xx.c:492
static int dm96xx_probe(struct usb_function *func, struct usb_configuration_descriptor *config)
Probe device.
Definition: dm96xx.c:513
int register_netdev(struct net_device *netdev)
Register network device.
Definition: netdevice.c:667
static size_t iob_len(struct io_buffer *iobuf)
Calculate length of data in an I/O buffer.
Definition: iobuf.h:151
#define USB_CLASS_ID(base, subclass, protocol)
Construct USB class ID.
Definition: usb.h:1345
A network device.
Definition: netdevice.h:348
struct usb_endpoint in
Bulk IN endpoint.
Definition: usbnet.h:29
static void netdev_nullify(struct net_device *netdev)
Stop using a network device.
Definition: netdevice.h:511
Normal driver.
Definition: usb.h:1406
unsigned char uint8_t
Definition: stdint.h:10
#define ETH_ALEN
Definition: if_ether.h:8
struct usb_device * usb
USB device.
Definition: usb.h:661
static int dm96xx_rx_mode(struct dm96xx_device *dm96xx)
Set DM9601-compatible RX header mode.
Definition: dm96xx.c:176
#define DM96XX_RCR_RXEN
RX enable.
Definition: dm96xx.h:44
#define DM96XX_NSR_LINKST
Link status.
Definition: dm96xx.h:37
#define DM96XX_RSR_MF
Multicast frame.
Definition: dm96xx.h:48
Network device operations.
Definition: netdevice.h:213
void netdev_rx(struct net_device *netdev, struct io_buffer *iobuf)
Add packet to receive queue.
Definition: netdevice.c:470
struct device * dev
Underlying hardware device.
Definition: netdevice.h:360
static int dm96xx_transmit(struct net_device *netdev, struct io_buffer *iobuf)
Transmit packet.
Definition: dm96xx.c:462
#define DM96XX_RCR_RUNT
Pass runt packet.
Definition: dm96xx.h:42
static struct usb_device_id dm96xx_ids[]
DM96xx device IDs.
Definition: dm96xx.c:592
DM96xx receive header.
Definition: dm96xx.h:81
#define DM96XX_CHIPR
Chip revision register.
Definition: dm96xx.h:54
USB network devices.
struct net_device * netdev
Network device.
Definition: dm96xx.h:101
A USB configuration descriptor.
Definition: usb.h:195
static int dm96xx_open(struct net_device *netdev)
Open network device.
Definition: dm96xx.c:396
#define DM96XX_RCR_PRMSC
Promiscuous mode.
Definition: dm96xx.h:43
void netdev_tx_complete_err(struct net_device *netdev, struct io_buffer *iobuf, int rc)
Complete network transmission.
Definition: netdevice.c:395
static int dm96xx_write_mac(struct dm96xx_device *dm96xx, uint8_t *mac)
Write MAC address.
Definition: dm96xx.c:113
uint32_t len
Length.
Definition: ena.h:14
DM96xx transmit header.
Definition: dm96xx.h:89
#define USB_ANY_ID
Match-anything ID.
Definition: usb.h:1329
Universal Serial Bus (USB)
static void usbnet_init(struct usbnet_device *usbnet, struct usb_function *func, struct usb_endpoint_driver_operations *intr, struct usb_endpoint_driver_operations *in, struct usb_endpoint_driver_operations *out)
Initialise USB network device.
Definition: usbnet.h:44
void * data
Start of data.
Definition: iobuf.h:44
struct usb_hub * hub
USB hub.
Definition: usb.h:798
#define EIO
Input/output error.
Definition: errno.h:433
struct net_device * alloc_etherdev(size_t priv_size)
Allocate Ethernet device.
Definition: ethernet.c:264
struct ena_aq_header header
Header.
Definition: ena.h:12
A DM96xx network device.
Definition: dm96xx.h:95
#define cpu_to_le16(value)
Definition: byteswap.h:106
#define DM96XX_IN_MAX_FILL
Bulk IN maximum fill level.
Definition: dm96xx.h:187
#define DM96XX_RCR_ALL
Pass all multicast.
Definition: dm96xx.h:41
Davicom DM96xx USB Ethernet driver.
#define DM96XX_RESET_DELAY_US
Reset delay (in microseconds)
Definition: dm96xx.h:175
int usbnet_describe(struct usbnet_device *usbnet, struct usb_configuration_descriptor *config)
Describe USB network device interfaces.
Definition: usbnet.c:277
uint8_t ll_addr[MAX_LL_ADDR_LEN]
Link-layer address.
Definition: netdevice.h:381
static void dm96xx_link_nsr(struct dm96xx_device *dm96xx, unsigned int nsr)
Update link status based on network status register.
Definition: dm96xx.c:133
void usbnet_close(struct usbnet_device *usbnet)
Close USB network device.
Definition: usbnet.c:127
USB endpoint driver operations.
Definition: usb.h:474
struct device dev
Generic device.
Definition: usb.h:665
A USB function.
Definition: usb.h:657
struct usb_bus * bus
USB bus.
Definition: usb.h:828
int iob_ensure_headroom(struct io_buffer *iobuf, size_t len)
Ensure I/O buffer has sufficient headroom.
Definition: iobuf.c:183
#define DM96XX_IN_MTU
Bulk IN buffer size.
Definition: dm96xx.h:190
uint8_t hw_addr[MAX_HW_ADDR_LEN]
Hardware address.
Definition: netdevice.h:375
#define NULL
NULL pointer (VOID *)
Definition: Base.h:362
static struct usb_endpoint_driver_operations dm96xx_out_operations
Bulk OUT endpoint operations.
Definition: dm96xx.c:379
String functions.
#define DM96XX_NSR
Network status register.
Definition: dm96xx.h:36
struct usbnet_device usbnet
USB network device.
Definition: dm96xx.h:103
struct bofm_section_header done
Definition: bofm_test.c:46
struct usb_device_id * ids
USB ID table.
Definition: usb.h:1365
static void dm96xx_close(struct net_device *netdev)
Close network device.
Definition: dm96xx.c:445
void * memset(void *dest, int character, size_t len) __nonnull
A persistent I/O buffer.
Definition: iobuf.h:32
static int dm96xx_read_registers(struct dm96xx_device *dm96xx, unsigned int offset, void *data, size_t len)
Read registers.
Definition: dm96xx.h:116
int usbnet_open(struct usbnet_device *usbnet)
Open USB network device.
Definition: usbnet.c:54