w5200_driver.c
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1 /**
2  * @file w5200_driver.c
3  * @brief WIZnet W5200 Ethernet controller
4  *
5  * @section License
6  *
7  * SPDX-License-Identifier: GPL-2.0-or-later
8  *
9  * Copyright (C) 2010-2024 Oryx Embedded SARL. All rights reserved.
10  *
11  * This file is part of CycloneTCP Open.
12  *
13  * This program is free software; you can redistribute it and/or
14  * modify it under the terms of the GNU General Public License
15  * as published by the Free Software Foundation; either version 2
16  * of the License, or (at your option) any later version.
17  *
18  * This program is distributed in the hope that it will be useful,
19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21  * GNU General Public License for more details.
22  *
23  * You should have received a copy of the GNU General Public License
24  * along with this program; if not, write to the Free Software Foundation,
25  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26  *
27  * @author Oryx Embedded SARL (www.oryx-embedded.com)
28  * @version 2.4.0
29  **/
30 
31 //Switch to the appropriate trace level
32 #define TRACE_LEVEL NIC_TRACE_LEVEL
33 
34 //Dependencies
35 #include "core/net.h"
37 #include "debug.h"
38 
39 
40 /**
41  * @brief W5200 driver
42  **/
43 
45 {
47  ETH_MTU,
48  w5200Init,
49  w5200Tick,
55  NULL,
56  NULL,
57  NULL,
58  TRUE,
59  TRUE,
60  TRUE,
61  TRUE
62 };
63 
64 
65 /**
66  * @brief W5200 controller initialization
67  * @param[in] interface Underlying network interface
68  * @return Error code
69  **/
70 
72 {
73  uint_t i;
74  uint8_t value;
75 
76  //Debug message
77  TRACE_INFO("Initializing W5200 Ethernet controller...\r\n");
78 
79  //Initialize SPI interface
80  interface->spiDriver->init();
81 
82  //Initialize external interrupt line driver
83  if(interface->extIntDriver != NULL)
84  {
85  interface->extIntDriver->init();
86  }
87 
88  //Wait for the SPI interface to be ready
89  do
90  {
91  //Read chip version register
92  value = w5200ReadReg8(interface, W5200_VERSIONR);
93 
94  //Check chip version
95  } while(value != W5200_VERSIONR_DEFAULT);
96 
97  //Perform software reset
99 
100  //Wait for reset completion
101  do
102  {
103  //Read mode register
104  value = w5200ReadReg8(interface, W5200_MR);
105 
106  //The RST bit is automatically cleared after reset completion
107  } while((value & W5200_MR_RST) != 0);
108 
109  //Set the MAC address of the station
110  w5200WriteReg8(interface, W5200_SHAR0, interface->macAddr.b[0]);
111  w5200WriteReg8(interface, W5200_SHAR1, interface->macAddr.b[1]);
112  w5200WriteReg8(interface, W5200_SHAR2, interface->macAddr.b[2]);
113  w5200WriteReg8(interface, W5200_SHAR3, interface->macAddr.b[3]);
114  w5200WriteReg8(interface, W5200_SHAR4, interface->macAddr.b[4]);
115  w5200WriteReg8(interface, W5200_SHAR5, interface->macAddr.b[5]);
116 
117  //Set TX and RX buffer size for socket 0
120 
121  //Sockets 1 to 7 are not used
122  for(i = 1; i <= 7; i++)
123  {
124  w5200WriteReg8(interface, W5200_Sn_TXMEM_SIZE(i),
126  w5200WriteReg8(interface, W5200_Sn_RXMEM_SIZE(i),
128  }
129 
130  //Configure socket 0 in MACRAW mode
133 
134  //Open socket 0
136 
137  //Wait for command completion
138  do
139  {
140  //Read status register
141  value = w5200ReadReg8(interface, W5200_S0_SR);
142 
143  //Check the status of the socket
144  } while(value != W5200_Sn_SR_SOCK_MACRAW);
145 
146  //Configure socket 0 interrupts
149 
150  //Enable socket 0 interrupts
152 
153  //Perform custom configuration
154  w5200InitHook(interface);
155 
156  //Dump registers for debugging purpose
157  w5200DumpReg(interface);
158 
159  //Accept any packets from the upper layer
160  osSetEvent(&interface->nicTxEvent);
161 
162  //Force the TCP/IP stack to poll the link state at startup
163  interface->nicEvent = TRUE;
164  //Notify the TCP/IP stack of the event
166 
167  //Successful initialization
168  return NO_ERROR;
169 }
170 
171 
172 /**
173  * @brief W5200 custom configuration
174  * @param[in] interface Underlying network interface
175  **/
176 
177 __weak_func void w5200InitHook(NetInterface *interface)
178 {
179 }
180 
181 
182 /**
183  * @brief W5200 timer handler
184  * @param[in] interface Underlying network interface
185  **/
186 
187 void w5200Tick(NetInterface *interface)
188 {
189  uint8_t value;
190  bool_t linkState;
191 
192  //Read PHY status register
193  value = w5200ReadReg8(interface, W5200_PSTATUS);
194  //Retrieve current link state
195  linkState = (value & W5200_PSTATUS_LINK) ? TRUE : FALSE;
196 
197  //Check link state
198  if(linkState && !interface->linkState)
199  {
200  //Link is up
201  interface->linkState = TRUE;
202  //Process link state change event
203  nicNotifyLinkChange(interface);
204  }
205  else if(!linkState && interface->linkState)
206  {
207  //Link is down
208  interface->linkState = FALSE;
209  //Process link state change event
210  nicNotifyLinkChange(interface);
211  }
212  else
213  {
214  //No link change detected
215  }
216 }
217 
218 
219 /**
220  * @brief Enable interrupts
221  * @param[in] interface Underlying network interface
222  **/
223 
224 void w5200EnableIrq(NetInterface *interface)
225 {
226  //Enable interrupts
227  if(interface->extIntDriver != NULL)
228  {
229  interface->extIntDriver->enableIrq();
230  }
231 }
232 
233 
234 /**
235  * @brief Disable interrupts
236  * @param[in] interface Underlying network interface
237  **/
238 
240 {
241  //Disable interrupts
242  if(interface->extIntDriver != NULL)
243  {
244  interface->extIntDriver->disableIrq();
245  }
246 }
247 
248 
249 /**
250  * @brief W5200 interrupt service routine
251  * @param[in] interface Underlying network interface
252  * @return TRUE if a higher priority task must be woken. Else FALSE is returned
253  **/
254 
256 {
257  bool_t flag;
258  uint16_t n;
259  uint8_t isr;
260 
261  //This flag will be set if a higher priority task must be woken
262  flag = FALSE;
263 
264  //Read socket interrupt register
265  isr = w5200ReadReg8(interface, W5200_IR2);
266  //Disable interrupts to release the interrupt line
267  w5200WriteReg8(interface, W5200_IMR, 0);
268 
269  //Socket 0 interrupt?
270  if((isr & W5200_IR2_S0_INT) != 0)
271  {
272  //Read socket 0 interrupt register
273  isr = w5200ReadReg8(interface, W5200_S0_IR);
274 
275  //Packet transmission complete?
276  if((isr & W5200_Sn_IR_SENDOK) != 0)
277  {
278  //Get the amount of free memory available in the TX buffer
279  n = w5200ReadReg16(interface, W5200_S0_TX_FSR0);
280 
281  //Check whether the TX buffer is available for writing
282  if(n >= ETH_MAX_FRAME_SIZE)
283  {
284  //The transmitter can accept another packet
285  osSetEvent(&interface->nicTxEvent);
286  }
287  }
288 
289  //Packet received?
290  if((isr & W5200_Sn_IR_RECV) != 0)
291  {
292  //Set event flag
293  interface->nicEvent = TRUE;
294  //Notify the TCP/IP stack of the event
295  flag |= osSetEventFromIsr(&netEvent);
296  }
297 
298  //Clear interrupt flags
299  w5200WriteReg8(interface, W5200_S0_IR, isr &
301  }
302 
303  //Re-enable interrupts once the interrupt has been serviced
305 
306  //A higher priority task must be woken?
307  return flag;
308 }
309 
310 
311 /**
312  * @brief W5200 event handler
313  * @param[in] interface Underlying network interface
314  **/
315 
317 {
318  error_t error;
319 
320  //Process all pending packets
321  do
322  {
323  //Read incoming packet
324  error = w5200ReceivePacket(interface);
325 
326  //No more data in the receive buffer?
327  } while(error != ERROR_BUFFER_EMPTY);
328 }
329 
330 
331 /**
332  * @brief Send a packet
333  * @param[in] interface Underlying network interface
334  * @param[in] buffer Multi-part buffer containing the data to send
335  * @param[in] offset Offset to the first data byte
336  * @param[in] ancillary Additional options passed to the stack along with
337  * the packet
338  * @return Error code
339  **/
340 
342  const NetBuffer *buffer, size_t offset, NetTxAncillary *ancillary)
343 {
344  static uint8_t temp[W5200_ETH_TX_BUFFER_SIZE];
345  uint16_t n;
346  size_t length;
347 
348  //Retrieve the length of the packet
349  length = netBufferGetLength(buffer) - offset;
350 
351  //Check the frame length
353  {
354  //The transmitter can accept another packet
355  osSetEvent(&interface->nicTxEvent);
356  //Report an error
357  return ERROR_INVALID_LENGTH;
358  }
359 
360  //Get the amount of free memory available in the TX buffer
361  n = w5200ReadReg16(interface, W5200_S0_TX_FSR0);
362 
363  //Make sure the TX buffer is available for writing
364  if(n < length)
365  return ERROR_FAILURE;
366 
367  //Copy user data
368  netBufferRead(temp, buffer, offset, length);
369 
370  //Write packet data
371  w5200WriteData(interface, temp, length);
372 
373  //Get the amount of free memory available in the TX buffer
374  n = w5200ReadReg16(interface, W5200_S0_TX_FSR0);
375 
376  //Check whether the TX buffer is available for writing
377  if(n >= ETH_MAX_FRAME_SIZE)
378  {
379  //The transmitter can accept another packet
380  osSetEvent(&interface->nicTxEvent);
381  }
382 
383  //Successful processing
384  return NO_ERROR;
385 }
386 
387 
388 /**
389  * @brief Receive a packet
390  * @param[in] interface Underlying network interface
391  * @return Error code
392  **/
393 
395 {
396  static uint8_t temp[W5200_ETH_RX_BUFFER_SIZE];
397  error_t error;
398  size_t length;
399 
400  //Get the amount of data in the RX buffer
401  length = w5200ReadReg16(interface, W5200_S0_RX_RSR0);
402 
403  //Any packet pending in the receive buffer?
404  if(length > 0)
405  {
406  //Read packet header
407  w5200ReadData(interface, temp, 2);
408 
409  //Retrieve the length of the received packet
410  length = LOAD16BE(temp);
411 
412  //Ensure the packet size is acceptable
413  if(length >= 2 && length <= (ETH_MAX_FRAME_SIZE + 2))
414  {
415  //Read packet data
416  w5200ReadData(interface, temp, length - 2);
417  //Successful processing
418  error = NO_ERROR;
419  }
420  else
421  {
422  //The packet length is not valid
423  error = ERROR_INVALID_LENGTH;
424  }
425  }
426  else
427  {
428  //No more data in the receive buffer
429  error = ERROR_BUFFER_EMPTY;
430  }
431 
432  //Check whether a valid packet has been received
433  if(!error)
434  {
435  NetRxAncillary ancillary;
436 
437  //Additional options can be passed to the stack along with the packet
438  ancillary = NET_DEFAULT_RX_ANCILLARY;
439 
440  //Pass the packet to the upper layer
441  nicProcessPacket(interface, temp, length, &ancillary);
442  }
443 
444  //Return status code
445  return error;
446 }
447 
448 
449 /**
450  * @brief Configure MAC address filtering
451  * @param[in] interface Underlying network interface
452  * @return Error code
453  **/
454 
456 {
457  //Not implemented
458  return NO_ERROR;
459 }
460 
461 
462 /**
463  * @brief Write 8-bit register
464  * @param[in] interface Underlying network interface
465  * @param[in] address Register address
466  * @param[in] data Register value
467  **/
468 
469 void w5200WriteReg8(NetInterface *interface, uint16_t address, uint8_t data)
470 {
471  //Pull the CS pin low
472  interface->spiDriver->assertCs();
473 
474  //Write address
475  interface->spiDriver->transfer(MSB(address));
476  interface->spiDriver->transfer(LSB(address));
477 
478  //Write opcode and data length
479  interface->spiDriver->transfer(W5200_OP_WRITE);
480  interface->spiDriver->transfer(1);
481 
482  //Write data
483  interface->spiDriver->transfer(data);
484 
485  //Terminate the operation by raising the CS pin
486  interface->spiDriver->deassertCs();
487 }
488 
489 
490 /**
491  * @brief Read 8-bit register
492  * @param[in] interface Underlying network interface
493  * @param[in] address Register address
494  * @return Register value
495  **/
496 
497 uint8_t w5200ReadReg8(NetInterface *interface, uint16_t address)
498 {
499  uint8_t data;
500 
501  //Pull the CS pin low
502  interface->spiDriver->assertCs();
503 
504  //Write address
505  interface->spiDriver->transfer(MSB(address));
506  interface->spiDriver->transfer(LSB(address));
507 
508  //Write opcode and data length
509  interface->spiDriver->transfer(W5200_OP_READ);
510  interface->spiDriver->transfer(1);
511 
512  //Read data
513  data = interface->spiDriver->transfer(0x00);
514 
515  //Terminate the operation by raising the CS pin
516  interface->spiDriver->deassertCs();
517 
518  //Return register value
519  return data;
520 }
521 
522 
523 /**
524  * @brief Write 16-bit register
525  * @param[in] interface Underlying network interface
526  * @param[in] address Register address
527  * @param[in] data Register value
528  **/
529 
530 void w5200WriteReg16(NetInterface *interface, uint16_t address, uint16_t data)
531 {
532  //Pull the CS pin low
533  interface->spiDriver->assertCs();
534 
535  //Write address
536  interface->spiDriver->transfer(MSB(address));
537  interface->spiDriver->transfer(LSB(address));
538 
539  //Write opcode and data length
540  interface->spiDriver->transfer(W5200_OP_WRITE);
541  interface->spiDriver->transfer(2);
542 
543  //Write data
544  interface->spiDriver->transfer(MSB(data));
545  interface->spiDriver->transfer(LSB(data));
546 
547  //Terminate the operation by raising the CS pin
548  interface->spiDriver->deassertCs();
549 }
550 
551 
552 /**
553  * @brief Read 16-bit register
554  * @param[in] interface Underlying network interface
555  * @param[in] address Register address
556  * @return Register value
557  **/
558 
559 uint16_t w5200ReadReg16(NetInterface *interface, uint16_t address)
560 {
561  uint16_t data;
562 
563  //Pull the CS pin low
564  interface->spiDriver->assertCs();
565 
566  //Write address
567  interface->spiDriver->transfer(MSB(address));
568  interface->spiDriver->transfer(LSB(address));
569 
570  //Write opcode and data length
571  interface->spiDriver->transfer(W5200_OP_READ);
572  interface->spiDriver->transfer(2);
573 
574  //Read data
575  data = interface->spiDriver->transfer(0x00) << 8;
576  data |= interface->spiDriver->transfer(0x00);
577 
578  //Terminate the operation by raising the CS pin
579  interface->spiDriver->deassertCs();
580 
581  //Return register value
582  return data;
583 }
584 
585 
586 /**
587  * @brief Write data
588  * @param[in] interface Underlying network interface
589  * @param[in] data Pointer to the data being written
590  * @param[in] length Number of data to write
591  **/
592 
593 void w5200WriteData(NetInterface *interface, const uint8_t *data,
594  size_t length)
595 {
596  size_t p;
597  size_t size;
598  size_t offset;
599 
600  //Get TX buffer size
601  size = w5200ReadReg8(interface, W5200_S0_TXMEM_SIZE) * 1024;
602  //Get TX write pointer
603  p = w5200ReadReg16(interface, W5200_S0_TX_WR0);
604 
605  //Retrieve current offset
606  offset = p & (size - 1);
607 
608  //Check whether the data crosses buffer boundaries
609  if((offset + length) < size)
610  {
611  //Write data
612  w5200WriteBuffer(interface, W5200_TX_BUFFER + offset, data, length);
613  }
614  else
615  {
616  //Write the first part of the data
617  w5200WriteBuffer(interface, W5200_TX_BUFFER + offset, data,
618  size - offset);
619 
620  //Wrap around to the beginning of the circular buffer
622  data + size - offset, offset + length - size);
623  }
624 
625  //Increment TX write pointer
626  w5200WriteReg16(interface, W5200_S0_TX_WR0, p + length);
627 
628  //Start packet transmission
630 }
631 
632 
633 /**
634  * @brief Read data
635  * @param[in] interface Underlying network interface
636  * @param[out] data Buffer where to store the incoming data
637  * @param[in] length Number of data to read
638  **/
639 
640 void w5200ReadData(NetInterface *interface, uint8_t *data, size_t length)
641 {
642  size_t p;
643  size_t size;
644  size_t offset;
645 
646  //Get RX buffer size
647  size = w5200ReadReg8(interface, W5200_S0_RXMEM_SIZE) * 1024;
648  //Get RX read pointer
649  p = w5200ReadReg16(interface, W5200_S0_RX_RD0);
650 
651  //Retrieve current offset
652  offset = p & (size - 1);
653 
654  //Check whether the data crosses buffer boundaries
655  if((offset + length) < size)
656  {
657  //Read data
658  w5200ReadBuffer(interface, W5200_RX_BUFFER + offset, data, length);
659  }
660  else
661  {
662  //Read the first part of the data
663  w5200ReadBuffer(interface, W5200_RX_BUFFER + offset, data,
664  size - offset);
665 
666  //Wrap around to the beginning of the circular buffer
667  w5200ReadBuffer(interface, W5200_RX_BUFFER,
668  data + size - offset, offset + length - size);
669  }
670 
671  //Increment RX read pointer
672  w5200WriteReg16(interface, W5200_S0_RX_RD0, p + length);
673 
674  //Complete the processing of the receive data
676 }
677 
678 
679 /**
680  * @brief Write TX buffer
681  * @param[in] interface Underlying network interface
682  * @param[in] address Buffer address
683  * @param[in] data Pointer to the data being written
684  * @param[in] length Number of data to write
685  **/
686 
687 void w5200WriteBuffer(NetInterface *interface, uint16_t address,
688  const uint8_t *data, size_t length)
689 {
690  size_t i;
691 
692  //Pull the CS pin low
693  interface->spiDriver->assertCs();
694 
695  //Write address
696  interface->spiDriver->transfer(MSB(address));
697  interface->spiDriver->transfer(LSB(address));
698 
699  //Write opcode and data length
700  interface->spiDriver->transfer(W5200_OP_WRITE | MSB(length));
701  interface->spiDriver->transfer(LSB(length));
702 
703  //Write data
704  for(i = 0; i < length; i++)
705  {
706  interface->spiDriver->transfer(data[i]);
707  }
708 
709  //Terminate the operation by raising the CS pin
710  interface->spiDriver->deassertCs();
711 }
712 
713 
714 /**
715  * @brief Read RX buffer
716  * @param[in] interface Underlying network interface
717  * @param[in] address Buffer address
718  * @param[out] data Buffer where to store the incoming data
719  * @param[in] length Number of data to read
720  **/
721 
722 void w5200ReadBuffer(NetInterface *interface, uint16_t address, uint8_t *data,
723  size_t length)
724 {
725  size_t i;
726 
727  //Pull the CS pin low
728  interface->spiDriver->assertCs();
729 
730  //Write address
731  interface->spiDriver->transfer(MSB(address));
732  interface->spiDriver->transfer(LSB(address));
733 
734  //Write opcode and data length
735  interface->spiDriver->transfer(W5200_OP_READ | MSB(length));
736  interface->spiDriver->transfer(LSB(length));
737 
738  //Read data
739  for(i = 0; i < length; i++)
740  {
741  data[i] = interface->spiDriver->transfer(0x00);
742  }
743 
744  //Terminate the operation by raising the CS pin
745  interface->spiDriver->deassertCs();
746 }
747 
748 
749 /**
750  * @brief Dump registers for debugging purpose
751  * @param[in] interface Underlying network interface
752  **/
753 
754 void w5200DumpReg(NetInterface *interface)
755 {
756  uint16_t i;
757 
758  //Loop through registers
759  for(i = 0; i < 64; i++)
760  {
761  //Display current host MAC register
762  TRACE_DEBUG("%02" PRIX16 ": 0x%02" PRIX8 "\r\n", i,
763  w5200ReadReg8(interface, i));
764  }
765 
766  //Terminate with a line feed
767  TRACE_DEBUG("\r\n");
768 }
unsigned int uint_t
Definition: compiler_port.h:50
int bool_t
Definition: compiler_port.h:53
#define LOAD16BE(p)
Definition: cpu_endian.h:186
Debugging facilities.
#define TRACE_DEBUG(...)
Definition: debug.h:107
#define TRACE_INFO(...)
Definition: debug.h:95
uint8_t n
error_t
Error codes.
Definition: error.h:43
@ ERROR_BUFFER_EMPTY
Definition: error.h:141
@ NO_ERROR
Success.
Definition: error.h:44
@ ERROR_INVALID_LENGTH
Definition: error.h:111
@ ERROR_FAILURE
Generic error code.
Definition: error.h:45
#define ETH_MTU
Definition: ethernet.h:116
uint8_t data[]
Definition: ethernet.h:222
#define ETH_MAX_FRAME_SIZE
Definition: ethernet.h:110
Ipv6Addr address[]
Definition: ipv6.h:316
uint8_t p
Definition: ndp.h:300
TCP/IP stack core.
#define NetInterface
Definition: net.h:36
#define netEvent
Definition: net_legacy.h:196
size_t netBufferGetLength(const NetBuffer *buffer)
Get the actual length of a multi-part buffer.
Definition: net_mem.c:297
size_t netBufferRead(void *dest, const NetBuffer *src, size_t srcOffset, size_t length)
Read data from a multi-part buffer.
Definition: net_mem.c:674
const NetRxAncillary NET_DEFAULT_RX_ANCILLARY
Definition: net_misc.c:101
#define NetRxAncillary
Definition: net_misc.h:40
#define NetTxAncillary
Definition: net_misc.h:36
void nicProcessPacket(NetInterface *interface, uint8_t *packet, size_t length, NetRxAncillary *ancillary)
Handle a packet received by the network controller.
Definition: nic.c:391
void nicNotifyLinkChange(NetInterface *interface)
Process link state change notification.
Definition: nic.c:548
@ NIC_TYPE_ETHERNET
Ethernet interface.
Definition: nic.h:83
#define LSB(x)
Definition: os_port.h:55
#define TRUE
Definition: os_port.h:50
#define FALSE
Definition: os_port.h:46
#define MSB(x)
Definition: os_port.h:59
bool_t osSetEventFromIsr(OsEvent *event)
Set an event object to the signaled state from an interrupt service routine.
void osSetEvent(OsEvent *event)
Set the specified event object to the signaled state.
Structure describing a buffer that spans multiple chunks.
Definition: net_mem.h:89
NIC driver.
Definition: nic.h:283
uint8_t length
Definition: tcp.h:368
uint8_t value[]
Definition: tcp.h:369
void w5200WriteBuffer(NetInterface *interface, uint16_t address, const uint8_t *data, size_t length)
Write TX buffer.
Definition: w5200_driver.c:687
void w5200DumpReg(NetInterface *interface)
Dump registers for debugging purpose.
Definition: w5200_driver.c:754
uint16_t w5200ReadReg16(NetInterface *interface, uint16_t address)
Read 16-bit register.
Definition: w5200_driver.c:559
void w5200ReadData(NetInterface *interface, uint8_t *data, size_t length)
Read data.
Definition: w5200_driver.c:640
__weak_func void w5200InitHook(NetInterface *interface)
W5200 custom configuration.
Definition: w5200_driver.c:177
uint8_t w5200ReadReg8(NetInterface *interface, uint16_t address)
Read 8-bit register.
Definition: w5200_driver.c:497
void w5200DisableIrq(NetInterface *interface)
Disable interrupts.
Definition: w5200_driver.c:239
void w5200WriteReg16(NetInterface *interface, uint16_t address, uint16_t data)
Write 16-bit register.
Definition: w5200_driver.c:530
void w5200ReadBuffer(NetInterface *interface, uint16_t address, uint8_t *data, size_t length)
Read RX buffer.
Definition: w5200_driver.c:722
void w5200WriteData(NetInterface *interface, const uint8_t *data, size_t length)
Write data.
Definition: w5200_driver.c:593
error_t w5200UpdateMacAddrFilter(NetInterface *interface)
Configure MAC address filtering.
Definition: w5200_driver.c:455
void w5200EnableIrq(NetInterface *interface)
Enable interrupts.
Definition: w5200_driver.c:224
bool_t w5200IrqHandler(NetInterface *interface)
W5200 interrupt service routine.
Definition: w5200_driver.c:255
error_t w5200ReceivePacket(NetInterface *interface)
Receive a packet.
Definition: w5200_driver.c:394
error_t w5200Init(NetInterface *interface)
W5200 controller initialization.
Definition: w5200_driver.c:71
void w5200WriteReg8(NetInterface *interface, uint16_t address, uint8_t data)
Write 8-bit register.
Definition: w5200_driver.c:469
const NicDriver w5200Driver
W5200 driver.
Definition: w5200_driver.c:44
void w5200Tick(NetInterface *interface)
W5200 timer handler.
Definition: w5200_driver.c:187
error_t w5200SendPacket(NetInterface *interface, const NetBuffer *buffer, size_t offset, NetTxAncillary *ancillary)
Send a packet.
Definition: w5200_driver.c:341
void w5200EventHandler(NetInterface *interface)
W5200 event handler.
Definition: w5200_driver.c:316
WIZnet W5200 Ethernet controller.
#define W5200_SHAR1
Definition: w5200_driver.h:66
#define W5200_Sn_IMR_SENDOK
Definition: w5200_driver.h:579
#define W5200_SHAR2
Definition: w5200_driver.h:67
#define W5200_Sn_IMR_RECV
Definition: w5200_driver.h:581
#define W5200_S0_TXMEM_SIZE
Definition: w5200_driver.h:117
#define W5200_S0_RX_RD0
Definition: w5200_driver.h:126
#define W5200_IMR
Definition: w5200_driver.h:76
#define W5200_RX_BUFFER
Definition: w5200_driver.h:458
#define W5200_Sn_IR_SENDOK
Definition: w5200_driver.h:535
#define W5200_MR_RST
Definition: w5200_driver.h:461
#define W5200_S0_IMR
Definition: w5200_driver.h:130
#define W5200_SHAR4
Definition: w5200_driver.h:69
#define W5200_IR2
Definition: w5200_driver.h:88
#define W5200_PSTATUS_LINK
Definition: w5200_driver.h:494
#define W5200_SHAR3
Definition: w5200_driver.h:68
#define W5200_S0_TX_FSR0
Definition: w5200_driver.h:118
#define W5200_Sn_RXMEM_SIZE_16KB
Definition: w5200_driver.h:565
#define W5200_Sn_RXMEM_SIZE(n)
Definition: w5200_driver.h:438
#define W5200_Sn_RXMEM_SIZE_0KB
Definition: w5200_driver.h:560
#define W5200_SHAR0
Definition: w5200_driver.h:65
#define W5200_S0_CR
Definition: w5200_driver.h:94
#define W5200_S0_RX_RSR0
Definition: w5200_driver.h:124
#define W5200_IR2_S0_INT
Definition: w5200_driver.h:491
#define W5200_S0_RXMEM_SIZE
Definition: w5200_driver.h:116
#define W5200_Sn_CR_SEND
Definition: w5200_driver.h:521
#define W5200_Sn_MR_MF
Definition: w5200_driver.h:504
#define W5200_S0_MR
Definition: w5200_driver.h:93
#define W5200_VERSIONR_DEFAULT
Definition: w5200_driver.h:481
#define W5200_Sn_TXMEM_SIZE(n)
Definition: w5200_driver.h:439
#define W5200_Sn_TXMEM_SIZE_0KB
Definition: w5200_driver.h:568
#define W5200_S0_TX_WR0
Definition: w5200_driver.h:122
#define W5200_SHAR5
Definition: w5200_driver.h:70
#define W5200_S0_SR
Definition: w5200_driver.h:96
#define W5200_Sn_MR_PROTOCOL_MACRAW
Definition: w5200_driver.h:512
#define W5200_Sn_SR_SOCK_MACRAW
Definition: w5200_driver.h:556
#define W5200_ETH_RX_BUFFER_SIZE
Definition: w5200_driver.h:46
#define W5200_MR
Definition: w5200_driver.h:56
#define W5200_Sn_CR_OPEN
Definition: w5200_driver.h:516
#define W5200_VERSIONR
Definition: w5200_driver.h:83
#define W5200_Sn_IR_RECV
Definition: w5200_driver.h:537
#define W5200_OP_READ
Definition: w5200_driver.h:52
#define W5200_ETH_TX_BUFFER_SIZE
Definition: w5200_driver.h:39
#define W5200_S0_IR
Definition: w5200_driver.h:95
#define W5200_OP_WRITE
Definition: w5200_driver.h:53
#define W5200_Sn_TXMEM_SIZE_16KB
Definition: w5200_driver.h:573
#define W5200_TX_BUFFER
Definition: w5200_driver.h:457
#define W5200_IMR_S0_IMR
Definition: w5200_driver.h:478
#define W5200_Sn_CR_RECV
Definition: w5200_driver.h:529
#define W5200_PSTATUS
Definition: w5200_driver.h:89