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1 | /** @file\r | |
2 | *\r | |
3 | * Copyright (c) 2012-2014, ARM Limited. All rights reserved.\r | |
4 | *\r | |
5 | * This program and the accompanying materials\r | |
6 | * are licensed and made available under the terms and conditions of the BSD License\r | |
7 | * which accompanies this distribution. The full text of the license may be found at\r | |
8 | * http://opensource.org/licenses/bsd-license.php\r | |
9 | *\r | |
10 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | *\r | |
13 | **/\r | |
14 | \r | |
15 | #include "Lan9118Dxe.h"\r | |
16 | \r | |
17 | \r | |
18 | typedef struct {\r | |
19 | MAC_ADDR_DEVICE_PATH Lan9118;\r | |
20 | EFI_DEVICE_PATH_PROTOCOL End;\r | |
21 | } LAN9118_DEVICE_PATH;\r | |
22 | \r | |
23 | LAN9118_DEVICE_PATH Lan9118PathTemplate = {\r | |
24 | {\r | |
25 | {\r | |
26 | MESSAGING_DEVICE_PATH, MSG_MAC_ADDR_DP,\r | |
27 | { (UINT8) (sizeof(MAC_ADDR_DEVICE_PATH)), (UINT8) ((sizeof(MAC_ADDR_DEVICE_PATH)) >> 8) }\r | |
28 | },\r | |
29 | { 0 },\r | |
30 | 0\r | |
31 | },\r | |
32 | {\r | |
33 | END_DEVICE_PATH_TYPE,\r | |
34 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
35 | sizeof(EFI_DEVICE_PATH_PROTOCOL),\r | |
36 | 0\r | |
37 | }\r | |
38 | };\r | |
39 | \r | |
40 | /*\r | |
41 | ** Entry point for the LAN9118 driver\r | |
42 | **\r | |
43 | */\r | |
44 | EFI_STATUS\r | |
45 | Lan9118DxeEntry (\r | |
46 | IN EFI_HANDLE Handle,\r | |
47 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
48 | )\r | |
49 | {\r | |
50 | EFI_STATUS Status;\r | |
51 | LAN9118_DRIVER *LanDriver;\r | |
52 | EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r | |
53 | EFI_SIMPLE_NETWORK_MODE *SnpMode;\r | |
54 | LAN9118_DEVICE_PATH *Lan9118Path;\r | |
55 | EFI_HANDLE ControllerHandle;\r | |
56 | \r | |
57 | // The PcdLan9118DxeBaseAddress PCD must be defined\r | |
58 | ASSERT (PcdGet32 (PcdLan9118DxeBaseAddress) != 0);\r | |
59 | \r | |
60 | // Allocate Resources\r | |
61 | LanDriver = AllocateZeroPool (sizeof (LAN9118_DRIVER));\r | |
62 | if (LanDriver == NULL) {\r | |
63 | return EFI_OUT_OF_RESOURCES;\r | |
64 | }\r | |
65 | Lan9118Path = (LAN9118_DEVICE_PATH*)AllocateCopyPool (sizeof (LAN9118_DEVICE_PATH), &Lan9118PathTemplate);\r | |
66 | if (Lan9118Path == NULL) {\r | |
67 | return EFI_OUT_OF_RESOURCES;\r | |
68 | }\r | |
69 | \r | |
70 | // Initialize pointers\r | |
71 | Snp = &(LanDriver->Snp);\r | |
72 | SnpMode = &(LanDriver->SnpMode);\r | |
73 | Snp->Mode = SnpMode;\r | |
74 | \r | |
75 | // Set the signature of the LAN Driver structure\r | |
76 | LanDriver->Signature = LAN9118_SIGNATURE;\r | |
77 | \r | |
78 | // Assign fields and func pointers\r | |
79 | Snp->Revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;\r | |
80 | Snp->WaitForPacket = NULL;\r | |
81 | Snp->Initialize = SnpInitialize;\r | |
82 | Snp->Start = SnpStart;\r | |
83 | Snp->Stop = SnpStop;\r | |
84 | Snp->Reset = SnpReset;\r | |
85 | Snp->Shutdown = SnpShutdown;\r | |
86 | Snp->ReceiveFilters = SnpReceiveFilters;\r | |
87 | Snp->StationAddress = SnpStationAddress;\r | |
88 | Snp->Statistics = SnpStatistics;\r | |
89 | Snp->MCastIpToMac = SnpMcastIptoMac;\r | |
90 | Snp->NvData = SnpNvData;\r | |
91 | Snp->GetStatus = SnpGetStatus;\r | |
92 | Snp->Transmit = SnpTransmit;\r | |
93 | Snp->Receive = SnpReceive;\r | |
94 | \r | |
95 | // Start completing simple network mode structure\r | |
96 | SnpMode->State = EfiSimpleNetworkStopped;\r | |
97 | SnpMode->HwAddressSize = NET_ETHER_ADDR_LEN; // HW address is 6 bytes\r | |
98 | SnpMode->MediaHeaderSize = sizeof(ETHER_HEAD); // Not sure of this\r | |
99 | SnpMode->MaxPacketSize = EFI_PAGE_SIZE; // Preamble + SOF + Ether Frame (with VLAN tag +4bytes)\r | |
100 | SnpMode->NvRamSize = 0; // No NVRAM with this device\r | |
101 | SnpMode->NvRamAccessSize = 0; // No NVRAM with this device\r | |
102 | \r | |
103 | // Update network mode information\r | |
104 | SnpMode->ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST |\r | |
105 | EFI_SIMPLE_NETWORK_RECEIVE_UNICAST |\r | |
106 | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST |\r | |
107 | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS;/* |\r | |
108 | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;*/\r | |
109 | // Current allowed settings\r | |
110 | SnpMode->ReceiveFilterSetting = EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST |\r | |
111 | EFI_SIMPLE_NETWORK_RECEIVE_UNICAST |\r | |
112 | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;\r | |
113 | \r | |
114 | // LAN9118 has 64bit hash table, can filter 64 MCast MAC Addresses\r | |
115 | SnpMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;\r | |
116 | SnpMode->MCastFilterCount = 0;\r | |
117 | ZeroMem (&SnpMode->MCastFilter, MAX_MCAST_FILTER_CNT * sizeof(EFI_MAC_ADDRESS));\r | |
118 | \r | |
119 | // Set the interface type (1: Ethernet or 6: IEEE 802 Networks)\r | |
120 | SnpMode->IfType = NET_IFTYPE_ETHERNET;\r | |
121 | \r | |
122 | // Mac address is changeable as it is loaded from erasable memory\r | |
123 | SnpMode->MacAddressChangeable = TRUE;\r | |
124 | \r | |
125 | // Can only transmit one packet at a time\r | |
126 | SnpMode->MultipleTxSupported = FALSE;\r | |
127 | \r | |
128 | // MediaPresent checks for cable connection and partner link\r | |
129 | SnpMode->MediaPresentSupported = TRUE;\r | |
130 | SnpMode->MediaPresent = FALSE;\r | |
131 | \r | |
132 | // Set broadcast address\r | |
133 | SetMem (&SnpMode->BroadcastAddress, sizeof (EFI_MAC_ADDRESS), 0xFF);\r | |
134 | \r | |
135 | // Power up the device so we can find the MAC address\r | |
136 | Status = Lan9118Initialize (Snp);\r | |
137 | if (EFI_ERROR (Status)) {\r | |
138 | DEBUG ((EFI_D_ERROR, "Lan9118: Error initialising hardware\n"));\r | |
139 | return EFI_DEVICE_ERROR;\r | |
140 | }\r | |
141 | \r | |
142 | // Assign fields for device path\r | |
143 | CopyMem (&Lan9118Path->Lan9118.MacAddress, &Snp->Mode->CurrentAddress, NET_ETHER_ADDR_LEN);\r | |
144 | Lan9118Path->Lan9118.IfType = Snp->Mode->IfType;\r | |
145 | \r | |
146 | // Initialise the protocol\r | |
147 | ControllerHandle = NULL;\r | |
148 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
149 | &ControllerHandle,\r | |
150 | &gEfiSimpleNetworkProtocolGuid, Snp,\r | |
151 | &gEfiDevicePathProtocolGuid, Lan9118Path,\r | |
152 | NULL\r | |
153 | );\r | |
154 | // Say what the status of loading the protocol structure is\r | |
155 | if (EFI_ERROR(Status)) {\r | |
156 | FreePool (LanDriver);\r | |
157 | } else {\r | |
158 | LanDriver->ControllerHandle = ControllerHandle;\r | |
159 | }\r | |
160 | \r | |
161 | return Status;\r | |
162 | }\r | |
163 | \r | |
164 | /*\r | |
165 | * UEFI Start() function\r | |
166 | *\r | |
167 | * Parameters:\r | |
168 | *\r | |
169 | * @param Snp: A pointer to the EFI_SIMPLE_NETWORK_PROTOCOL instance.\r | |
170 | *\r | |
171 | * Description:\r | |
172 | *\r | |
173 | * This function starts a network interface. If the network interface successfully starts, then\r | |
174 | * EFI_SUCCESS will be returned.\r | |
175 | */\r | |
176 | EFI_STATUS\r | |
177 | EFIAPI\r | |
178 | SnpStart (\r | |
179 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp\r | |
180 | )\r | |
181 | {\r | |
182 | // Check Snp instance\r | |
183 | if (Snp == NULL) {\r | |
184 | return EFI_INVALID_PARAMETER;\r | |
185 | }\r | |
186 | \r | |
187 | // Check state\r | |
188 | if ((Snp->Mode->State == EfiSimpleNetworkStarted) || (Snp->Mode->State == EfiSimpleNetworkInitialized)) {\r | |
189 | return EFI_ALREADY_STARTED;\r | |
190 | } else if (Snp->Mode->State == EfiSimpleNetworkMaxState) {\r | |
191 | return EFI_DEVICE_ERROR;\r | |
192 | }\r | |
193 | \r | |
194 | // Change state\r | |
195 | Snp->Mode->State = EfiSimpleNetworkStarted;\r | |
196 | return EFI_SUCCESS;\r | |
197 | }\r | |
198 | \r | |
199 | /*\r | |
200 | * UEFI Stop() function\r | |
201 | *\r | |
202 | */\r | |
203 | EFI_STATUS\r | |
204 | EFIAPI\r | |
205 | SnpStop (\r | |
206 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp\r | |
207 | )\r | |
208 | {\r | |
209 | // Check Snp Instance\r | |
210 | if (Snp == NULL) {\r | |
211 | return EFI_INVALID_PARAMETER;\r | |
212 | }\r | |
213 | \r | |
214 | // Check state of the driver\r | |
215 | if ((Snp->Mode->State == EfiSimpleNetworkStopped) || (Snp->Mode->State == EfiSimpleNetworkMaxState)) {\r | |
216 | return EFI_NOT_STARTED;\r | |
217 | }\r | |
218 | \r | |
219 | // Stop the Tx and Rx\r | |
220 | StopTx (STOP_TX_CFG | STOP_TX_MAC, Snp);\r | |
221 | StopRx (0, Snp);\r | |
222 | \r | |
223 | // Change the state\r | |
224 | switch (Snp->Mode->State) {\r | |
225 | case EfiSimpleNetworkStarted:\r | |
226 | case EfiSimpleNetworkInitialized:\r | |
227 | Snp->Mode->State = EfiSimpleNetworkStopped;\r | |
228 | break;\r | |
229 | default:\r | |
230 | return EFI_DEVICE_ERROR;\r | |
231 | }\r | |
232 | \r | |
233 | // Put the device into a power saving mode ?\r | |
234 | return EFI_SUCCESS;\r | |
235 | }\r | |
236 | \r | |
237 | \r | |
238 | // Allocated receive and transmit buffers\r | |
239 | STATIC UINT32 gTxBuffer = 0;\r | |
240 | \r | |
241 | /*\r | |
242 | * UEFI Initialize() function\r | |
243 | *\r | |
244 | */\r | |
245 | EFI_STATUS\r | |
246 | EFIAPI\r | |
247 | SnpInitialize (\r | |
248 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
249 | IN UINTN RxBufferSize OPTIONAL,\r | |
250 | IN UINTN TxBufferSize OPTIONAL\r | |
251 | )\r | |
252 | {\r | |
253 | EFI_STATUS Status;\r | |
254 | UINT32 PmConf;\r | |
255 | INT32 AllocResult;\r | |
256 | UINT32 RxStatusSize;\r | |
257 | UINT32 TxStatusSize;\r | |
258 | \r | |
259 | // Initialize variables\r | |
260 | // Global variables to hold tx and rx FIFO allocation\r | |
261 | gTxBuffer = 0;\r | |
262 | \r | |
263 | // Check Snp Instance\r | |
264 | if (Snp == NULL) {\r | |
265 | return EFI_INVALID_PARAMETER;\r | |
266 | }\r | |
267 | \r | |
268 | // First check that driver has not already been initialized\r | |
269 | if (Snp->Mode->State == EfiSimpleNetworkInitialized) {\r | |
270 | DEBUG ((EFI_D_WARN, "LAN9118 Driver already initialized\n"));\r | |
271 | return EFI_SUCCESS;\r | |
272 | } else\r | |
273 | if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r | |
274 | DEBUG ((EFI_D_WARN, "LAN9118 Driver not started\n"));\r | |
275 | return EFI_NOT_STARTED;\r | |
276 | }\r | |
277 | \r | |
278 | // Initiate a PHY reset\r | |
279 | if (PhySoftReset (PHY_RESET_PMT | PHY_RESET_CHECK_LINK, Snp) < 0) {\r | |
280 | Snp->Mode->State = EfiSimpleNetworkStopped;\r | |
281 | DEBUG ((EFI_D_WARN, "Warning: Link not ready after TimeOut. Check ethernet cable\n"));\r | |
282 | return EFI_NOT_STARTED;\r | |
283 | }\r | |
284 | \r | |
285 | // Initiate a software reset\r | |
286 | Status = SoftReset (0, Snp);\r | |
287 | if (EFI_ERROR(Status)) {\r | |
288 | DEBUG ((EFI_D_WARN, "Soft Reset Failed: Hardware Error\n"));\r | |
289 | return EFI_DEVICE_ERROR;\r | |
290 | }\r | |
291 | \r | |
292 | // Read the PM register\r | |
293 | PmConf = MmioRead32 (LAN9118_PMT_CTRL);\r | |
294 | \r | |
295 | // MPTCTRL_WOL_EN: Allow Wake-On-Lan to detect wake up frames or magic packets\r | |
296 | // MPTCTRL_ED_EN: Allow energy detection to allow lowest power consumption mode\r | |
297 | // MPTCTRL_PME_EN: Allow Power Management Events\r | |
298 | PmConf = 0;\r | |
299 | PmConf |= (MPTCTRL_WOL_EN | MPTCTRL_ED_EN | MPTCTRL_PME_EN);\r | |
300 | \r | |
301 | // Write the current configuration to the register\r | |
302 | MmioWrite32 (LAN9118_PMT_CTRL, PmConf);\r | |
303 | gBS->Stall (LAN9118_STALL);\r | |
304 | gBS->Stall (LAN9118_STALL);\r | |
305 | \r | |
306 | // Configure GPIO and HW\r | |
307 | Status = ConfigureHardware (HW_CONF_USE_LEDS, Snp);\r | |
308 | if (EFI_ERROR(Status)) {\r | |
309 | return Status;\r | |
310 | }\r | |
311 | \r | |
312 | // Assign the transmitter buffer size (default values)\r | |
313 | TxStatusSize = LAN9118_TX_STATUS_SIZE;\r | |
314 | RxStatusSize = LAN9118_RX_STATUS_SIZE;\r | |
315 | \r | |
316 | // Check that a buff size was specified\r | |
317 | if (TxBufferSize > 0) {\r | |
318 | if (RxBufferSize == 0) {\r | |
319 | RxBufferSize = LAN9118_RX_DATA_SIZE;\r | |
320 | }\r | |
321 | \r | |
322 | AllocResult = ChangeFifoAllocation (\r | |
323 | ALLOC_USE_FIFOS,\r | |
324 | &TxBufferSize,\r | |
325 | &RxBufferSize,\r | |
326 | &TxStatusSize,\r | |
327 | &RxStatusSize,\r | |
328 | Snp\r | |
329 | );\r | |
330 | \r | |
331 | if (AllocResult < 0) {\r | |
332 | return EFI_OUT_OF_RESOURCES;\r | |
333 | }\r | |
334 | }\r | |
335 | \r | |
336 | // Do auto-negotiation if supported\r | |
337 | Status = AutoNegotiate (AUTO_NEGOTIATE_ADVERTISE_ALL, Snp);\r | |
338 | if (EFI_ERROR(Status)) {\r | |
339 | DEBUG ((EFI_D_WARN, "Lan9118: Auto Negociation not supported.\n"));\r | |
340 | }\r | |
341 | \r | |
342 | // Configure flow control depending on speed capabilities\r | |
343 | Status = ConfigureFlow (0, 0, 0, 0, Snp);\r | |
344 | if (EFI_ERROR(Status)) {\r | |
345 | return Status;\r | |
346 | }\r | |
347 | \r | |
348 | // Enable the receiver and transmitter\r | |
349 | Status = StartRx (0, Snp);\r | |
350 | if (EFI_ERROR(Status)) {\r | |
351 | return Status;\r | |
352 | }\r | |
353 | \r | |
354 | Status = StartTx (START_TX_MAC | START_TX_CFG, Snp);\r | |
355 | if (EFI_ERROR(Status)) {\r | |
356 | return Status;\r | |
357 | }\r | |
358 | \r | |
359 | // Now acknowledge all interrupts\r | |
360 | MmioWrite32 (LAN9118_INT_STS, ~0);\r | |
361 | \r | |
362 | // Declare the driver as initialized\r | |
363 | Snp->Mode->State = EfiSimpleNetworkInitialized;\r | |
364 | \r | |
365 | return Status;\r | |
366 | }\r | |
367 | \r | |
368 | /*\r | |
369 | * UEFI Reset () function\r | |
370 | *\r | |
371 | */\r | |
372 | EFI_STATUS\r | |
373 | EFIAPI\r | |
374 | SnpReset (\r | |
375 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
376 | IN BOOLEAN Verification\r | |
377 | )\r | |
378 | {\r | |
379 | UINT32 PmConf;\r | |
380 | UINT32 HwConf;\r | |
381 | UINT32 ResetFlags;\r | |
382 | \r | |
383 | PmConf = 0;\r | |
384 | HwConf = 0;\r | |
385 | ResetFlags = 0;\r | |
386 | \r | |
387 | // Check Snp Instance\r | |
388 | if (Snp == NULL) {\r | |
389 | return EFI_INVALID_PARAMETER;\r | |
390 | }\r | |
391 | \r | |
392 | // First check that driver has not already been initialized\r | |
393 | if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r | |
394 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not yet initialized\n"));\r | |
395 | return EFI_DEVICE_ERROR;\r | |
396 | } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r | |
397 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not started\n"));\r | |
398 | return EFI_NOT_STARTED;\r | |
399 | }\r | |
400 | \r | |
401 | // Initiate a PHY reset\r | |
402 | if (PhySoftReset (PHY_RESET_PMT | PHY_RESET_CHECK_LINK, Snp) < 0) {\r | |
403 | Snp->Mode->State = EfiSimpleNetworkStopped;\r | |
404 | return EFI_NOT_STARTED;\r | |
405 | }\r | |
406 | \r | |
407 | // Initiate a software reset\r | |
408 | ResetFlags |= SOFT_RESET_CHECK_MAC_ADDR_LOAD | SOFT_RESET_CLEAR_INT;\r | |
409 | \r | |
410 | if (Verification) {\r | |
411 | ResetFlags |= SOFT_RESET_SELF_TEST;\r | |
412 | }\r | |
413 | \r | |
414 | if (SoftReset (ResetFlags, Snp) < 0) {\r | |
415 | DEBUG ((EFI_D_WARN, "Warning: Soft Reset Failed: Hardware Error\n"));\r | |
416 | return EFI_DEVICE_ERROR;\r | |
417 | }\r | |
418 | \r | |
419 | // Read the PM register\r | |
420 | PmConf = MmioRead32 (LAN9118_PMT_CTRL);\r | |
421 | \r | |
422 | // MPTCTRL_WOL_EN: Allow Wake-On-Lan to detect wake up frames or magic packets\r | |
423 | // MPTCTRL_ED_EN: Allow energy detection to allow lowest power consumption mode\r | |
424 | // MPTCTRL_PME_EN: Allow Power Management Events\r | |
425 | PmConf |= (MPTCTRL_WOL_EN | MPTCTRL_ED_EN | MPTCTRL_PME_EN);\r | |
426 | \r | |
427 | // Write the current configuration to the register\r | |
428 | MmioWrite32 (LAN9118_PMT_CTRL, PmConf);\r | |
429 | gBS->Stall (LAN9118_STALL);\r | |
430 | \r | |
431 | // Check that a buffer size was specified in SnpInitialize\r | |
432 | if (gTxBuffer != 0) {\r | |
433 | HwConf = MmioRead32 (LAN9118_HW_CFG); // Read the HW register\r | |
434 | HwConf &= ~HW_CFG_TX_FIFO_SIZE_MASK; // Clear buffer bits first\r | |
435 | HwConf |= HW_CFG_TX_FIFO_SIZE(gTxBuffer); // assign size chosen in SnpInitialize\r | |
436 | \r | |
437 | MmioWrite32 (LAN9118_HW_CFG, HwConf); // Write the conf\r | |
438 | gBS->Stall (LAN9118_STALL);\r | |
439 | }\r | |
440 | \r | |
441 | // Enable the receiver and transmitter and clear their contents\r | |
442 | StartRx (START_RX_CLEAR, Snp);\r | |
443 | StartTx (START_TX_MAC | START_TX_CFG | START_TX_CLEAR, Snp);\r | |
444 | \r | |
445 | // Now acknowledge all interrupts\r | |
446 | MmioWrite32 (LAN9118_INT_STS, ~0);\r | |
447 | \r | |
448 | return EFI_SUCCESS;\r | |
449 | }\r | |
450 | \r | |
451 | /*\r | |
452 | * UEFI Shutdown () function\r | |
453 | *\r | |
454 | */\r | |
455 | EFI_STATUS\r | |
456 | EFIAPI\r | |
457 | SnpShutdown (\r | |
458 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp\r | |
459 | )\r | |
460 | {\r | |
461 | // Check Snp Instance\r | |
462 | if (Snp == NULL) {\r | |
463 | return EFI_INVALID_PARAMETER;\r | |
464 | }\r | |
465 | \r | |
466 | // First check that driver has not already been initialized\r | |
467 | if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r | |
468 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not yet initialized\n"));\r | |
469 | return EFI_DEVICE_ERROR;\r | |
470 | } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r | |
471 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r | |
472 | return EFI_NOT_STARTED;\r | |
473 | }\r | |
474 | \r | |
475 | // Initiate a PHY reset\r | |
476 | PhySoftReset (PHY_RESET_PMT, Snp);\r | |
477 | \r | |
478 | // Initiate a software reset\r | |
479 | if (SoftReset (0, Snp) < 0) {\r | |
480 | DEBUG ((EFI_D_WARN, "Warning: Soft Reset Failed: Hardware Error\n"));\r | |
481 | return EFI_DEVICE_ERROR;\r | |
482 | }\r | |
483 | \r | |
484 | return EFI_SUCCESS;\r | |
485 | }\r | |
486 | \r | |
487 | \r | |
488 | /*\r | |
489 | * UEFI ReceiveFilters() function\r | |
490 | *\r | |
491 | */\r | |
492 | EFI_STATUS\r | |
493 | EFIAPI\r | |
494 | SnpReceiveFilters (\r | |
495 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
496 | IN UINT32 Enable,\r | |
497 | IN UINT32 Disable,\r | |
498 | IN BOOLEAN Reset,\r | |
499 | IN UINTN NumMfilter OPTIONAL,\r | |
500 | IN EFI_MAC_ADDRESS *Mfilter OPTIONAL\r | |
501 | )\r | |
502 | {\r | |
503 | UINT32 MacCSRValue;\r | |
504 | UINT32 MultHashTableHigh;\r | |
505 | UINT32 MultHashTableLow;\r | |
506 | UINT32 Crc;\r | |
507 | UINT8 BitToSelect;\r | |
508 | UINT32 Count;\r | |
509 | \r | |
510 | MacCSRValue = 0;\r | |
511 | MultHashTableHigh = 0;\r | |
512 | MultHashTableLow = 0;\r | |
513 | Crc = 0xFFFFFFFF;\r | |
514 | BitToSelect = 0;\r | |
515 | Count = 0;\r | |
516 | \r | |
517 | // Check that driver was started and initialised\r | |
518 | if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r | |
519 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r | |
520 | return EFI_DEVICE_ERROR;\r | |
521 | } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r | |
522 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r | |
523 | return EFI_NOT_STARTED;\r | |
524 | }\r | |
525 | \r | |
526 | // If reset then clear the filter registers\r | |
527 | if (Reset) {\r | |
528 | Enable |= EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST;\r | |
529 | IndirectMACWrite32 (INDIRECT_MAC_INDEX_HASHL, 0x00000000);\r | |
530 | IndirectMACWrite32 (INDIRECT_MAC_INDEX_HASHH, 0x00000000);\r | |
531 | }\r | |
532 | \r | |
533 | // Set the hash tables\r | |
534 | if ((NumMfilter > 0) && (!Reset)) {\r | |
535 | \r | |
536 | // Read the Multicast High Hash Table\r | |
537 | MultHashTableHigh = IndirectMACRead32 (INDIRECT_MAC_INDEX_HASHH);\r | |
538 | \r | |
539 | // Read the Multicast Low Hash Table\r | |
540 | MultHashTableLow = IndirectMACRead32 (INDIRECT_MAC_INDEX_HASHL);\r | |
541 | \r | |
542 | // Go through each filter address and set appropriate bits on hash table\r | |
543 | for (Count = 0; Count < NumMfilter; Count++) {\r | |
544 | \r | |
545 | // Generate a 32-bit CRC for Ethernet\r | |
546 | Crc = GenEtherCrc32 (&Mfilter[Count],6);\r | |
547 | //gBS->CalculateCrc32 ((VOID*)&Mfilter[Count],6,&Crc); <-- doesn't work as desired\r | |
548 | \r | |
549 | // Get the most significant 6 bits to index hash registers\r | |
550 | BitToSelect = (Crc >> 26) & 0x3F;\r | |
551 | \r | |
552 | // Select hashlow register if MSB is not set\r | |
553 | if ((BitToSelect & 0x20) == 0) {\r | |
554 | MultHashTableLow |= (1 << BitToSelect);\r | |
555 | } else {\r | |
556 | MultHashTableHigh |= (1 << (BitToSelect & 0x1F));\r | |
557 | }\r | |
558 | }\r | |
559 | \r | |
560 | // Write the desired hash\r | |
561 | IndirectMACWrite32 (INDIRECT_MAC_INDEX_HASHL, MultHashTableLow);\r | |
562 | IndirectMACWrite32 (INDIRECT_MAC_INDEX_HASHH, MultHashTableHigh);\r | |
563 | }\r | |
564 | \r | |
565 | // Read MAC controller\r | |
566 | MacCSRValue = IndirectMACRead32 (INDIRECT_MAC_INDEX_CR);\r | |
567 | \r | |
568 | // Set the options for the MAC_CSR\r | |
569 | if (Enable & EFI_SIMPLE_NETWORK_RECEIVE_UNICAST) {\r | |
570 | StartRx (0, Snp);\r | |
571 | DEBUG ((DEBUG_NET, "Allowing Unicast Frame Reception\n"));\r | |
572 | }\r | |
573 | \r | |
574 | if (Disable & EFI_SIMPLE_NETWORK_RECEIVE_UNICAST) {\r | |
575 | StopRx (0, Snp);\r | |
576 | DEBUG ((DEBUG_NET, "Disabling Unicast Frame Reception\n"));\r | |
577 | }\r | |
578 | \r | |
579 | if (Enable & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) {\r | |
580 | MacCSRValue |= MACCR_HPFILT;\r | |
581 | DEBUG ((DEBUG_NET, "Allowing Multicast Frame Reception\n"));\r | |
582 | }\r | |
583 | \r | |
584 | if (Disable & EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST) {\r | |
585 | MacCSRValue &= ~MACCR_HPFILT;\r | |
586 | DEBUG ((DEBUG_NET, "Disabling Multicast Frame Reception\n"));\r | |
587 | }\r | |
588 | \r | |
589 | if (Enable & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST) {\r | |
590 | MacCSRValue &= ~(MACCR_BCAST);\r | |
591 | DEBUG ((DEBUG_NET, "Allowing Broadcast Frame Reception\n"));\r | |
592 | }\r | |
593 | \r | |
594 | if (Disable & EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST) {\r | |
595 | MacCSRValue |= MACCR_BCAST;\r | |
596 | DEBUG ((DEBUG_NET, "Disabling Broadcast Frame Reception\n"));\r | |
597 | }\r | |
598 | \r | |
599 | if (Enable & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS) {\r | |
600 | MacCSRValue |= MACCR_PRMS;\r | |
601 | DEBUG ((DEBUG_NET, "Enabling Promiscuous Mode\n"));\r | |
602 | }\r | |
603 | \r | |
604 | if (Disable & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS) {\r | |
605 | MacCSRValue &= ~MACCR_PRMS;\r | |
606 | DEBUG ((DEBUG_NET, "Disabling Promiscuous Mode\n"));\r | |
607 | }\r | |
608 | \r | |
609 | if (Enable & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST) {\r | |
610 | MacCSRValue |= (MACCR_HPFILT | MACCR_PRMS);\r | |
611 | DEBUG ((DEBUG_NET, "Enabling Promiscuous Multicast Mode\n"));\r | |
612 | }\r | |
613 | \r | |
614 | if (Disable & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST) {\r | |
615 | MacCSRValue &= ~(MACCR_HPFILT | MACCR_PRMS);\r | |
616 | DEBUG ((DEBUG_NET, "Disabling Promiscuous Multicast Mode\n"));\r | |
617 | }\r | |
618 | \r | |
619 | // Write the options to the MAC_CSR\r | |
620 | IndirectMACWrite32 (INDIRECT_MAC_INDEX_CR, MacCSRValue);\r | |
621 | gBS->Stall (LAN9118_STALL);\r | |
622 | \r | |
623 | return EFI_SUCCESS;\r | |
624 | }\r | |
625 | \r | |
626 | /*\r | |
627 | * UEFI StationAddress() function\r | |
628 | *\r | |
629 | */\r | |
630 | EFI_STATUS\r | |
631 | EFIAPI\r | |
632 | SnpStationAddress (\r | |
633 | IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,\r | |
634 | IN BOOLEAN Reset,\r | |
635 | IN EFI_MAC_ADDRESS *NewMac\r | |
636 | )\r | |
637 | {\r | |
638 | DEBUG ((DEBUG_NET, "SnpStationAddress()\n"));\r | |
639 | \r | |
640 | UINT32 Count;\r | |
641 | UINT8 PermAddr[6];\r | |
642 | UINT64 DefaultMacAddress;\r | |
643 | \r | |
644 | Count = 0;\r | |
645 | \r | |
646 | // Check Snp instance\r | |
647 | if (Snp == NULL) {\r | |
648 | return EFI_INVALID_PARAMETER;\r | |
649 | }\r | |
650 | \r | |
651 | // Check that driver was started and initialised\r | |
652 | if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r | |
653 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r | |
654 | return EFI_DEVICE_ERROR;\r | |
655 | } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r | |
656 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r | |
657 | return EFI_NOT_STARTED;\r | |
658 | }\r | |
659 | \r | |
660 | // Get the Permanent MAC address if need reset\r | |
661 | if (Reset) {\r | |
662 | // Try using EEPROM first. Read the first byte of data from EEPROM at the address 0x0\r | |
663 | if ((IndirectEEPROMRead32 (0) & 0xFF) == EEPROM_EXTERNAL_SERIAL_EEPROM) {\r | |
664 | for (Count = 1; Count < 7; Count++) {\r | |
665 | PermAddr[Count - 1] = IndirectEEPROMRead32 (Count);\r | |
666 | }\r | |
667 | \r | |
668 | // Write address\r | |
669 | Lan9118SetMacAddress ((EFI_MAC_ADDRESS *) PermAddr, Snp);\r | |
670 | } else {\r | |
671 | DEBUG ((EFI_D_ERROR, "Lan9118: Warning: No valid MAC address in EEPROM, using fallback\n"));\r | |
672 | DefaultMacAddress = FixedPcdGet64 (PcdLan9118DefaultMacAddress);\r | |
673 | Lan9118SetMacAddress ((EFI_MAC_ADDRESS *) &DefaultMacAddress, Snp);\r | |
674 | }\r | |
675 | } else {\r | |
676 | // Otherwise use the specified new MAC address\r | |
677 | if (NewMac == NULL) {\r | |
678 | return EFI_INVALID_PARAMETER;\r | |
679 | }\r | |
680 | \r | |
681 | // Write address\r | |
682 | Lan9118SetMacAddress (NewMac, Snp);\r | |
683 | }\r | |
684 | \r | |
685 | return EFI_SUCCESS;\r | |
686 | }\r | |
687 | \r | |
688 | /*\r | |
689 | * UEFI Statistics() function\r | |
690 | *\r | |
691 | */\r | |
692 | EFI_STATUS\r | |
693 | EFIAPI\r | |
694 | SnpStatistics (\r | |
695 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
696 | IN BOOLEAN Reset,\r | |
697 | IN OUT UINTN *StatSize,\r | |
698 | OUT EFI_NETWORK_STATISTICS *Statistics\r | |
699 | )\r | |
700 | {\r | |
701 | LAN9118_DRIVER *LanDriver;\r | |
702 | \r | |
703 | LanDriver = INSTANCE_FROM_SNP_THIS (Snp);\r | |
704 | \r | |
705 | DEBUG ((DEBUG_NET, "SnpStatistics()\n"));\r | |
706 | \r | |
707 | // Check Snp instance\r | |
708 | if (Snp == NULL) {\r | |
709 | return EFI_INVALID_PARAMETER;\r | |
710 | }\r | |
711 | \r | |
712 | // Check that driver was started and initialised\r | |
713 | if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r | |
714 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r | |
715 | return EFI_DEVICE_ERROR;\r | |
716 | } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r | |
717 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r | |
718 | return EFI_NOT_STARTED;\r | |
719 | }\r | |
720 | \r | |
721 | // Check pointless condition\r | |
722 | if ((!Reset) && (StatSize == NULL) && (Statistics == NULL)) {\r | |
723 | return EFI_SUCCESS;\r | |
724 | }\r | |
725 | \r | |
726 | // Check the parameters\r | |
727 | if ((StatSize == NULL) && (Statistics != NULL)) {\r | |
728 | return EFI_INVALID_PARAMETER;\r | |
729 | }\r | |
730 | \r | |
731 | // Do a reset if required\r | |
732 | if (Reset) {\r | |
733 | ZeroMem (&LanDriver->Stats, sizeof(EFI_NETWORK_STATISTICS));\r | |
734 | }\r | |
735 | \r | |
736 | // Check buffer size\r | |
737 | if (*StatSize < sizeof(EFI_NETWORK_STATISTICS)) {\r | |
738 | *StatSize = sizeof(EFI_NETWORK_STATISTICS);\r | |
739 | return EFI_BUFFER_TOO_SMALL;\r | |
740 | }\r | |
741 | \r | |
742 | // Fill in the statistics\r | |
743 | CopyMem(&Statistics, &LanDriver->Stats, sizeof(EFI_NETWORK_STATISTICS));\r | |
744 | \r | |
745 | return EFI_SUCCESS;\r | |
746 | }\r | |
747 | \r | |
748 | /*\r | |
749 | * UEFI MCastIPtoMAC() function\r | |
750 | *\r | |
751 | */\r | |
752 | EFI_STATUS\r | |
753 | EFIAPI\r | |
754 | SnpMcastIptoMac (\r | |
755 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
756 | IN BOOLEAN IsIpv6,\r | |
757 | IN EFI_IP_ADDRESS *Ip,\r | |
758 | OUT EFI_MAC_ADDRESS *McastMac\r | |
759 | )\r | |
760 | {\r | |
761 | DEBUG ((DEBUG_NET, "SnpMcastIptoMac()\n"));\r | |
762 | \r | |
763 | // Check Snp instance\r | |
764 | if (Snp == NULL) {\r | |
765 | return EFI_INVALID_PARAMETER;\r | |
766 | }\r | |
767 | \r | |
768 | // Check that driver was started and initialised\r | |
769 | if (Snp->Mode->State == EfiSimpleNetworkStarted) {\r | |
770 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver not initialized\n"));\r | |
771 | return EFI_DEVICE_ERROR;\r | |
772 | } else if (Snp->Mode->State == EfiSimpleNetworkStopped) {\r | |
773 | DEBUG ((EFI_D_WARN, "Warning: LAN9118 Driver in stopped state\n"));\r | |
774 | return EFI_NOT_STARTED;\r | |
775 | }\r | |
776 | \r | |
777 | // Check parameters\r | |
778 | if ((McastMac == NULL) || (Ip == NULL)) {\r | |
779 | return EFI_INVALID_PARAMETER;\r | |
780 | }\r | |
781 | \r | |
782 | // Make sure MAC address is empty\r | |
783 | ZeroMem (McastMac, sizeof(EFI_MAC_ADDRESS));\r | |
784 | \r | |
785 | // If we need ipv4 address\r | |
786 | if (!IsIpv6) {\r | |
787 | // Most significant 25 bits of a multicast HW address are set.\r | |
788 | // 01-00-5E is the IPv4 Ethernet Multicast Address (see RFC 1112)\r | |
789 | McastMac->Addr[0] = 0x01;\r | |
790 | McastMac->Addr[1] = 0x00;\r | |
791 | McastMac->Addr[2] = 0x5E;\r | |
792 | \r | |
793 | // Lower 23 bits from ipv4 address\r | |
794 | McastMac->Addr[3] = (Ip->v4.Addr[1] & 0x7F); // Clear the most significant bit (25th bit of MAC must be 0)\r | |
795 | McastMac->Addr[4] = Ip->v4.Addr[2];\r | |
796 | McastMac->Addr[5] = Ip->v4.Addr[3];\r | |
797 | } else {\r | |
798 | // Most significant 16 bits of multicast v6 HW address are set\r | |
799 | // 33-33 is the IPv6 Ethernet Multicast Address (see RFC 2464)\r | |
800 | McastMac->Addr[0] = 0x33;\r | |
801 | McastMac->Addr[1] = 0x33;\r | |
802 | \r | |
803 | // lower four octets are taken from ipv6 address\r | |
804 | McastMac->Addr[2] = Ip->v6.Addr[8];\r | |
805 | McastMac->Addr[3] = Ip->v6.Addr[9];\r | |
806 | McastMac->Addr[4] = Ip->v6.Addr[10];\r | |
807 | McastMac->Addr[5] = Ip->v6.Addr[11];\r | |
808 | }\r | |
809 | \r | |
810 | return EFI_SUCCESS;\r | |
811 | }\r | |
812 | \r | |
813 | /*\r | |
814 | * UEFI NvData() function\r | |
815 | *\r | |
816 | */\r | |
817 | EFI_STATUS\r | |
818 | EFIAPI\r | |
819 | SnpNvData (\r | |
820 | IN EFI_SIMPLE_NETWORK_PROTOCOL* pobj,\r | |
821 | IN BOOLEAN read_write,\r | |
822 | IN UINTN offset,\r | |
823 | IN UINTN buff_size,\r | |
824 | IN OUT VOID *data\r | |
825 | )\r | |
826 | {\r | |
827 | DEBUG ((DEBUG_NET, "SnpNvData()\n"));\r | |
828 | \r | |
829 | return EFI_UNSUPPORTED;\r | |
830 | }\r | |
831 | \r | |
832 | \r | |
833 | /*\r | |
834 | * UEFI GetStatus () function\r | |
835 | *\r | |
836 | */\r | |
837 | EFI_STATUS\r | |
838 | EFIAPI\r | |
839 | SnpGetStatus (\r | |
840 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
841 | OUT UINT32 *IrqStat OPTIONAL,\r | |
842 | OUT VOID **TxBuff OPTIONAL\r | |
843 | )\r | |
844 | {\r | |
845 | UINT32 FifoInt;\r | |
846 | EFI_STATUS Status;\r | |
847 | UINTN NumTxStatusEntries;\r | |
848 | UINT32 TxStatus;\r | |
849 | UINT16 PacketTag;\r | |
850 | UINT32 Interrupts;\r | |
851 | LAN9118_DRIVER *LanDriver;\r | |
852 | \r | |
853 | LanDriver = INSTANCE_FROM_SNP_THIS (Snp);\r | |
854 | \r | |
855 | // Check preliminaries\r | |
856 | if (Snp == NULL) {\r | |
857 | return EFI_INVALID_PARAMETER;\r | |
858 | }\r | |
859 | \r | |
860 | if (Snp->Mode->State != EfiSimpleNetworkInitialized) {\r | |
861 | return EFI_NOT_STARTED;\r | |
862 | }\r | |
863 | \r | |
864 | // Check and acknowledge TX Status interrupt (this will happen if the\r | |
865 | // consumer of SNP does not call GetStatus.)\r | |
866 | // TODO will we lose TxStatuses if this happens? Maybe in SnpTransmit we\r | |
867 | // should check for it and dump the TX Status FIFO.\r | |
868 | FifoInt = MmioRead32 (LAN9118_FIFO_INT);\r | |
869 | \r | |
870 | // Clear the TX Status FIFO Overflow\r | |
871 | if ((FifoInt & INSTS_TXSO) == 0) {\r | |
872 | FifoInt |= INSTS_TXSO;\r | |
873 | MmioWrite32 (LAN9118_FIFO_INT, FifoInt);\r | |
874 | }\r | |
875 | \r | |
876 | // Read interrupt status if IrqStat is not NULL\r | |
877 | if (IrqStat != NULL) {\r | |
878 | \r | |
879 | // Check for receive interrupt\r | |
880 | if (MmioRead32 (LAN9118_INT_STS) & INSTS_RSFL) { // Data moved from rx FIFO\r | |
881 | *IrqStat |= EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;\r | |
882 | MmioWrite32 (LAN9118_INT_STS,INSTS_RSFL);\r | |
883 | } else {\r | |
884 | *IrqStat &= ~EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;\r | |
885 | }\r | |
886 | \r | |
887 | // Check for transmit interrupt\r | |
888 | if (MmioRead32 (LAN9118_INT_STS) & INSTS_TSFL) {\r | |
889 | *IrqStat |= EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;\r | |
890 | MmioWrite32 (LAN9118_INT_STS,INSTS_TSFL);\r | |
891 | } else {\r | |
892 | *IrqStat &= ~EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;\r | |
893 | }\r | |
894 | \r | |
895 | // Check for software interrupt\r | |
896 | if (MmioRead32 (LAN9118_INT_STS) & INSTS_SW_INT) {\r | |
897 | *IrqStat |= EFI_SIMPLE_NETWORK_SOFTWARE_INTERRUPT;\r | |
898 | MmioWrite32 (LAN9118_INT_STS,INSTS_SW_INT);\r | |
899 | } else {\r | |
900 | *IrqStat &= ~EFI_SIMPLE_NETWORK_SOFTWARE_INTERRUPT;\r | |
901 | }\r | |
902 | }\r | |
903 | \r | |
904 | // Check Status of transmitted packets\r | |
905 | // (We ignore TXSTATUS_NO_CA has it might happen in Full Duplex)\r | |
906 | \r | |
907 | NumTxStatusEntries = MmioRead32(LAN9118_TX_FIFO_INF) & TXFIFOINF_TXSUSED_MASK;\r | |
908 | if (NumTxStatusEntries > 0) {\r | |
909 | TxStatus = MmioRead32 (LAN9118_TX_STATUS);\r | |
910 | PacketTag = TxStatus >> 16;\r | |
911 | TxStatus = TxStatus & 0xFFFF;\r | |
912 | if ((TxStatus & TXSTATUS_ES) && TxStatus != (TXSTATUS_ES | TXSTATUS_NO_CA)) {\r | |
913 | DEBUG ((EFI_D_ERROR, "LAN9118: There was an error transmitting. TxStatus=0x%08x:", TxStatus));\r | |
914 | if (TxStatus & TXSTATUS_NO_CA) {\r | |
915 | DEBUG ((EFI_D_ERROR, "- No carrier\n"));\r | |
916 | }\r | |
917 | if (TxStatus & TXSTATUS_DEF) {\r | |
918 | DEBUG ((EFI_D_ERROR, "- Packet tx was deferred\n"));\r | |
919 | }\r | |
920 | if (TxStatus & TXSTATUS_EDEF) {\r | |
921 | DEBUG ((EFI_D_ERROR, "- Tx ended because of excessive deferral\n"));\r | |
922 | }\r | |
923 | if (TxStatus & TXSTATUS_ECOLL) {\r | |
924 | DEBUG ((EFI_D_ERROR, "- Tx ended because of Excessive Collisions\n"));\r | |
925 | }\r | |
926 | if (TxStatus & TXSTATUS_LCOLL) {\r | |
927 | DEBUG ((EFI_D_ERROR, "- Packet Tx aborted after coll window of 64 bytes\n"));\r | |
928 | }\r | |
929 | if (TxStatus & TXSTATUS_LOST_CA) {\r | |
930 | DEBUG ((EFI_D_ERROR, "- Lost carrier during Tx\n"));\r | |
931 | }\r | |
932 | return EFI_DEVICE_ERROR;\r | |
933 | } else {\r | |
934 | LanDriver->Stats.TxTotalFrames += 1;\r | |
935 | *TxBuff = LanDriver->TxRing[PacketTag % LAN9118_TX_RING_NUM_ENTRIES];\r | |
936 | }\r | |
937 | }\r | |
938 | \r | |
939 | // Check for a TX Error interrupt\r | |
940 | Interrupts = MmioRead32 (LAN9118_INT_STS);\r | |
941 | if (Interrupts & INSTS_TXE) {\r | |
942 | DEBUG ((EFI_D_ERROR, "LAN9118: Transmitter error. Restarting..."));\r | |
943 | \r | |
944 | // Initiate a software reset\r | |
945 | if (SoftReset (0, Snp) < 0) {\r | |
946 | DEBUG ((EFI_D_ERROR, "\n\tSoft Reset Failed: Hardware Error\n"));\r | |
947 | return EFI_DEVICE_ERROR;\r | |
948 | }\r | |
949 | \r | |
950 | // Acknowledge the TXE\r | |
951 | MmioWrite32 (LAN9118_INT_STS, INSTS_TXE);\r | |
952 | gBS->Stall (LAN9118_STALL);\r | |
953 | \r | |
954 | // Restart the transmitter\r | |
955 | StartTx (START_TX_MAC | START_TX_CFG, Snp);\r | |
956 | }\r | |
957 | \r | |
958 | // Update the media status\r | |
959 | Status = CheckLinkStatus (0, Snp);\r | |
960 | if (EFI_ERROR(Status)) {\r | |
961 | Snp->Mode->MediaPresent = FALSE;\r | |
962 | } else {\r | |
963 | Snp->Mode->MediaPresent = TRUE;\r | |
964 | }\r | |
965 | \r | |
966 | return EFI_SUCCESS;\r | |
967 | }\r | |
968 | \r | |
969 | \r | |
970 | /*\r | |
971 | * UEFI Transmit() function\r | |
972 | *\r | |
973 | */\r | |
974 | EFI_STATUS\r | |
975 | EFIAPI\r | |
976 | SnpTransmit (\r | |
977 | IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,\r | |
978 | IN UINTN HdrSize,\r | |
979 | IN UINTN BuffSize,\r | |
980 | IN VOID* Data,\r | |
981 | IN EFI_MAC_ADDRESS *SrcAddr OPTIONAL,\r | |
982 | IN EFI_MAC_ADDRESS *DstAddr OPTIONAL,\r | |
983 | IN UINT16 *Protocol OPTIONAL\r | |
984 | )\r | |
985 | {\r | |
986 | LAN9118_DRIVER *LanDriver;\r | |
987 | UINT32 TxFreeSpace;\r | |
988 | UINT32 TxStatusSpace;\r | |
989 | INT32 Count;\r | |
990 | UINT32 CommandA;\r | |
991 | UINT32 CommandB;\r | |
992 | UINT16 LocalProtocol;\r | |
993 | UINT32 *LocalData;\r | |
994 | UINT16 PacketTag;\r | |
995 | \r | |
996 | #if defined(EVAL_PERFORMANCE)\r | |
997 | UINT64 Perf;\r | |
998 | UINT64 StartClock;\r | |
999 | UINT64 EndClock;\r | |
1000 | \r | |
1001 | Perf = GetPerformanceCounterProperties (NULL, NULL);\r | |
1002 | StartClock = GetPerformanceCounter ();\r | |
1003 | #endif\r | |
1004 | \r | |
1005 | LanDriver = INSTANCE_FROM_SNP_THIS (Snp);\r | |
1006 | \r | |
1007 | // Check preliminaries\r | |
1008 | if ((Snp == NULL) || (Data == NULL)) {\r | |
1009 | return EFI_INVALID_PARAMETER;\r | |
1010 | }\r | |
1011 | if (Snp->Mode->State != EfiSimpleNetworkInitialized) {\r | |
1012 | return EFI_NOT_STARTED;\r | |
1013 | }\r | |
1014 | \r | |
1015 | // Ensure header is correct size if non-zero\r | |
1016 | if (HdrSize) {\r | |
1017 | if (HdrSize != Snp->Mode->MediaHeaderSize) {\r | |
1018 | return EFI_INVALID_PARAMETER;\r | |
1019 | }\r | |
1020 | \r | |
1021 | if ((DstAddr == NULL) || (Protocol == NULL)) {\r | |
1022 | return EFI_INVALID_PARAMETER;\r | |
1023 | }\r | |
1024 | }\r | |
1025 | \r | |
1026 | // Before transmitting check the link status\r | |
1027 | /*if (CheckLinkStatus (0, Snp) < 0) {\r | |
1028 | return EFI_NOT_READY;\r | |
1029 | }*/\r | |
1030 | \r | |
1031 | // Get DATA FIFO free space in bytes\r | |
1032 | TxFreeSpace = TxDataFreeSpace (0, Snp);\r | |
1033 | if (TxFreeSpace < BuffSize) {\r | |
1034 | return EFI_NOT_READY;\r | |
1035 | }\r | |
1036 | \r | |
1037 | // Get STATUS FIFO used space in bytes\r | |
1038 | TxStatusSpace = TxStatusUsedSpace (0, Snp);\r | |
1039 | if (TxStatusSpace > 500) {\r | |
1040 | return EFI_NOT_READY;\r | |
1041 | }\r | |
1042 | \r | |
1043 | // If DstAddr is not provided, get it from Buffer (we trust that the caller\r | |
1044 | // has provided a well-formed frame).\r | |
1045 | if (DstAddr == NULL) {\r | |
1046 | DstAddr = (EFI_MAC_ADDRESS *) Data;\r | |
1047 | }\r | |
1048 | \r | |
1049 | // Check for the nature of the frame\r | |
1050 | if ((DstAddr->Addr[0] & 0x1) == 1) {\r | |
1051 | LanDriver->Stats.TxMulticastFrames += 1;\r | |
1052 | } else {\r | |
1053 | LanDriver->Stats.TxUnicastFrames += 1;\r | |
1054 | }\r | |
1055 | \r | |
1056 | // Check if broadcast\r | |
1057 | if (DstAddr->Addr[0] == 0xFF) {\r | |
1058 | LanDriver->Stats.TxBroadcastFrames += 1;\r | |
1059 | }\r | |
1060 | \r | |
1061 | PacketTag = LanDriver->NextPacketTag;\r | |
1062 | LanDriver->NextPacketTag++;\r | |
1063 | \r | |
1064 | if (HdrSize) {\r | |
1065 | \r | |
1066 | // Format pointer\r | |
1067 | LocalData = (UINT32*) Data;\r | |
1068 | LocalProtocol = *Protocol;\r | |
1069 | \r | |
1070 | // Create first buffer to pass to controller (for the header)\r | |
1071 | CommandA = TX_CMD_A_FIRST_SEGMENT | TX_CMD_A_BUFF_SIZE (HdrSize);\r | |
1072 | CommandB = TX_CMD_B_PACKET_TAG (PacketTag) | TX_CMD_B_PACKET_LENGTH (BuffSize);\r | |
1073 | \r | |
1074 | // Write the commands first\r | |
1075 | MmioWrite32 (LAN9118_TX_DATA, CommandA);\r | |
1076 | MmioWrite32 (LAN9118_TX_DATA, CommandB);\r | |
1077 | \r | |
1078 | // Write the destination address\r | |
1079 | MmioWrite32 (LAN9118_TX_DATA,\r | |
1080 | (DstAddr->Addr[0]) |\r | |
1081 | (DstAddr->Addr[1] << 8) |\r | |
1082 | (DstAddr->Addr[2] << 16) |\r | |
1083 | (DstAddr->Addr[3] << 24)\r | |
1084 | );\r | |
1085 | \r | |
1086 | MmioWrite32 (LAN9118_TX_DATA,\r | |
1087 | (DstAddr->Addr[4]) |\r | |
1088 | (DstAddr->Addr[5] << 8) |\r | |
1089 | (SrcAddr->Addr[0] << 16) | // Write the Source Address\r | |
1090 | (SrcAddr->Addr[1] << 24)\r | |
1091 | );\r | |
1092 | \r | |
1093 | MmioWrite32 (LAN9118_TX_DATA,\r | |
1094 | (SrcAddr->Addr[2]) |\r | |
1095 | (SrcAddr->Addr[3] << 8) |\r | |
1096 | (SrcAddr->Addr[4] << 16) |\r | |
1097 | (SrcAddr->Addr[5] << 24)\r | |
1098 | );\r | |
1099 | \r | |
1100 | // Write the Protocol\r | |
1101 | MmioWrite32 (LAN9118_TX_DATA, (UINT32)(HTONS (LocalProtocol)));\r | |
1102 | \r | |
1103 | // Next buffer is the payload\r | |
1104 | CommandA = TX_CMD_A_LAST_SEGMENT | TX_CMD_A_BUFF_SIZE (BuffSize - HdrSize) | TX_CMD_A_COMPLETION_INT | TX_CMD_A_DATA_START_OFFSET (2); // 2 bytes beginning offset\r | |
1105 | \r | |
1106 | // Write the commands\r | |
1107 | MmioWrite32 (LAN9118_TX_DATA, CommandA);\r | |
1108 | MmioWrite32 (LAN9118_TX_DATA, CommandB);\r | |
1109 | \r | |
1110 | // Write the payload\r | |
1111 | for (Count = 0; Count < ((BuffSize + 3) >> 2) - 3; Count++) {\r | |
1112 | MmioWrite32 (LAN9118_TX_DATA, LocalData[Count + 3]);\r | |
1113 | }\r | |
1114 | } else {\r | |
1115 | // Format pointer\r | |
1116 | LocalData = (UINT32*) Data;\r | |
1117 | \r | |
1118 | // Create a buffer to pass to controller\r | |
1119 | CommandA = TX_CMD_A_FIRST_SEGMENT | TX_CMD_A_LAST_SEGMENT | TX_CMD_A_BUFF_SIZE (BuffSize) | TX_CMD_A_COMPLETION_INT;\r | |
1120 | CommandB = TX_CMD_B_PACKET_TAG (PacketTag) | TX_CMD_B_PACKET_LENGTH (BuffSize);\r | |
1121 | \r | |
1122 | // Write the commands first\r | |
1123 | MmioWrite32 (LAN9118_TX_DATA, CommandA);\r | |
1124 | MmioWrite32 (LAN9118_TX_DATA, CommandB);\r | |
1125 | \r | |
1126 | // Write all the data\r | |
1127 | for (Count = 0; Count < ((BuffSize + 3) >> 2); Count++) {\r | |
1128 | MmioWrite32 (LAN9118_TX_DATA, LocalData[Count]);\r | |
1129 | }\r | |
1130 | }\r | |
1131 | \r | |
1132 | // Save the address of the submitted packet so we can notify the consumer that\r | |
1133 | // it has been sent in GetStatus. When the packet tag appears in the Tx Status\r | |
1134 | // Fifo, we will return Buffer in the TxBuff parameter of GetStatus.\r | |
1135 | LanDriver->TxRing[PacketTag % LAN9118_TX_RING_NUM_ENTRIES] = Data;\r | |
1136 | \r | |
1137 | #if defined(EVAL_PERFORMANCE)\r | |
1138 | EndClock = GetPerformanceCounter ();\r | |
1139 | DEBUG ((EFI_D_ERROR, "Time processing: %d counts @ %d Hz\n", StartClock - EndClock,Perf));\r | |
1140 | #endif\r | |
1141 | \r | |
1142 | LanDriver->Stats.TxGoodFrames += 1;\r | |
1143 | \r | |
1144 | return EFI_SUCCESS;\r | |
1145 | }\r | |
1146 | \r | |
1147 | \r | |
1148 | /*\r | |
1149 | * UEFI Receive() function\r | |
1150 | *\r | |
1151 | */\r | |
1152 | EFI_STATUS\r | |
1153 | EFIAPI\r | |
1154 | SnpReceive (\r | |
1155 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
1156 | OUT UINTN *HdrSize OPTIONAL,\r | |
1157 | IN OUT UINTN *BuffSize,\r | |
1158 | OUT VOID *Data,\r | |
1159 | OUT EFI_MAC_ADDRESS *SrcAddr OPTIONAL,\r | |
1160 | OUT EFI_MAC_ADDRESS *DstAddr OPTIONAL,\r | |
1161 | OUT UINT16 *Protocol OPTIONAL\r | |
1162 | )\r | |
1163 | {\r | |
1164 | LAN9118_DRIVER *LanDriver;\r | |
1165 | UINT32 RxFifoStatus;\r | |
1166 | UINT32 NumPackets;\r | |
1167 | UINT32 RxCfgValue;\r | |
1168 | UINT32 PLength; // Packet length\r | |
1169 | UINT32 ReadLimit;\r | |
1170 | UINT32 Count;\r | |
1171 | UINT32 Padding;\r | |
1172 | UINT32 *RawData;\r | |
1173 | EFI_MAC_ADDRESS Dst;\r | |
1174 | EFI_MAC_ADDRESS Src;\r | |
1175 | UINTN DroppedFrames;\r | |
1176 | \r | |
1177 | LanDriver = INSTANCE_FROM_SNP_THIS (Snp);\r | |
1178 | \r | |
1179 | #if defined(EVAL_PERFORMANCE)\r | |
1180 | UINT64 Perf = GetPerformanceCounterProperties (NULL, NULL);\r | |
1181 | UINT64 StartClock = GetPerformanceCounter ();\r | |
1182 | #endif\r | |
1183 | \r | |
1184 | // Check preliminaries\r | |
1185 | if ((Snp == NULL) || (Data == NULL)) {\r | |
1186 | return EFI_INVALID_PARAMETER;\r | |
1187 | }\r | |
1188 | \r | |
1189 | if (Snp->Mode->State != EfiSimpleNetworkInitialized) {\r | |
1190 | return EFI_NOT_STARTED;\r | |
1191 | }\r | |
1192 | \r | |
1193 | // Count dropped frames\r | |
1194 | DroppedFrames = MmioRead32 (LAN9118_RX_DROP);\r | |
1195 | LanDriver->Stats.RxDroppedFrames += DroppedFrames;\r | |
1196 | \r | |
1197 | NumPackets = RxStatusUsedSpace (0, Snp) / 4;\r | |
1198 | if (!NumPackets) {\r | |
1199 | return EFI_NOT_READY;\r | |
1200 | }\r | |
1201 | \r | |
1202 | // Read Rx Status (only if not empty)\r | |
1203 | RxFifoStatus = MmioRead32 (LAN9118_RX_STATUS);\r | |
1204 | LanDriver->Stats.RxTotalFrames += 1;\r | |
1205 | \r | |
1206 | // First check for errors\r | |
1207 | if ((RxFifoStatus & RXSTATUS_MII_ERROR) ||\r | |
1208 | (RxFifoStatus & RXSTATUS_RXW_TO) ||\r | |
1209 | (RxFifoStatus & RXSTATUS_FTL) ||\r | |
1210 | (RxFifoStatus & RXSTATUS_LCOLL) ||\r | |
1211 | (RxFifoStatus & RXSTATUS_LE) ||\r | |
1212 | (RxFifoStatus & RXSTATUS_DB))\r | |
1213 | {\r | |
1214 | DEBUG ((EFI_D_WARN, "Warning: There was an error on frame reception.\n"));\r | |
1215 | return EFI_DEVICE_ERROR;\r | |
1216 | }\r | |
1217 | \r | |
1218 | // Check if we got a CRC error\r | |
1219 | if (RxFifoStatus & RXSTATUS_CRC_ERROR) {\r | |
1220 | DEBUG ((EFI_D_WARN, "Warning: Crc Error\n"));\r | |
1221 | LanDriver->Stats.RxCrcErrorFrames += 1;\r | |
1222 | LanDriver->Stats.RxDroppedFrames += 1;\r | |
1223 | return EFI_DEVICE_ERROR;\r | |
1224 | }\r | |
1225 | \r | |
1226 | // Check if we got a runt frame\r | |
1227 | if (RxFifoStatus & RXSTATUS_RUNT) {\r | |
1228 | DEBUG ((EFI_D_WARN, "Warning: Runt Frame\n"));\r | |
1229 | LanDriver->Stats.RxUndersizeFrames += 1;\r | |
1230 | LanDriver->Stats.RxDroppedFrames += 1;\r | |
1231 | return EFI_DEVICE_ERROR;\r | |
1232 | }\r | |
1233 | \r | |
1234 | // Check filtering status for this packet\r | |
1235 | if (RxFifoStatus & RXSTATUS_FILT_FAIL) {\r | |
1236 | DEBUG ((EFI_D_WARN, "Warning: Frame Failed Filtering\n"));\r | |
1237 | // fast forward?\r | |
1238 | }\r | |
1239 | \r | |
1240 | // Check if we got a broadcast frame\r | |
1241 | if (RxFifoStatus & RXSTATUS_BCF) {\r | |
1242 | LanDriver->Stats.RxBroadcastFrames += 1;\r | |
1243 | }\r | |
1244 | \r | |
1245 | // Check if we got a multicast frame\r | |
1246 | if (RxFifoStatus & RXSTATUS_MCF) {\r | |
1247 | LanDriver->Stats.RxMulticastFrames += 1;\r | |
1248 | }\r | |
1249 | \r | |
1250 | // Check if we got a unicast frame\r | |
1251 | if ((RxFifoStatus & RXSTATUS_BCF) && ((RxFifoStatus & RXSTATUS_MCF) == 0)) {\r | |
1252 | LanDriver->Stats.RxUnicastFrames += 1;\r | |
1253 | }\r | |
1254 | \r | |
1255 | // Get the received packet length\r | |
1256 | PLength = GET_RXSTATUS_PACKET_LENGTH(RxFifoStatus);\r | |
1257 | LanDriver->Stats.RxTotalBytes += (PLength - 4);\r | |
1258 | \r | |
1259 | // Check buffer size\r | |
1260 | if (*BuffSize < PLength) {\r | |
1261 | *BuffSize = PLength;\r | |
1262 | return EFI_BUFFER_TOO_SMALL;\r | |
1263 | }\r | |
1264 | \r | |
1265 | // If padding is applied, read more DWORDs\r | |
1266 | if (PLength % 4) {\r | |
1267 | Padding = 4 - (PLength % 4);\r | |
1268 | ReadLimit = (PLength + Padding)/4;\r | |
1269 | } else {\r | |
1270 | ReadLimit = PLength/4;\r | |
1271 | Padding = 0;\r | |
1272 | }\r | |
1273 | \r | |
1274 | // Set the amount of data to be transfered out of FIFO for THIS packet\r | |
1275 | // This can be used to trigger an interrupt, and status can be checked\r | |
1276 | RxCfgValue = MmioRead32 (LAN9118_RX_CFG);\r | |
1277 | RxCfgValue &= ~(RXCFG_RX_DMA_CNT_MASK);\r | |
1278 | RxCfgValue |= RXCFG_RX_DMA_CNT (ReadLimit);\r | |
1279 | \r | |
1280 | // Set end alignment to 4-bytes\r | |
1281 | RxCfgValue &= ~(RXCFG_RX_END_ALIGN_MASK);\r | |
1282 | MmioWrite32 (LAN9118_RX_CFG, RxCfgValue);\r | |
1283 | \r | |
1284 | // Update buffer size\r | |
1285 | *BuffSize = PLength; // -4 bytes may be needed: Received in buffer as\r | |
1286 | // 4 bytes longer than packet actually is, unless\r | |
1287 | // packet is < 64 bytes\r | |
1288 | \r | |
1289 | if (HdrSize != NULL)\r | |
1290 | *HdrSize = Snp->Mode->MediaHeaderSize;\r | |
1291 | \r | |
1292 | // Format the pointer\r | |
1293 | RawData = (UINT32*)Data;\r | |
1294 | \r | |
1295 | // Read Rx Packet\r | |
1296 | for (Count = 0; Count < ReadLimit; Count++) {\r | |
1297 | RawData[Count] = MmioRead32 (LAN9118_RX_DATA);\r | |
1298 | }\r | |
1299 | \r | |
1300 | // Check for Rx errors (worst possible error)\r | |
1301 | if (MmioRead32 (LAN9118_INT_STS) & INSTS_RXE) {\r | |
1302 | DEBUG ((EFI_D_WARN, "Warning: Receiver Error. Restarting...\n"));\r | |
1303 | \r | |
1304 | // Initiate a software reset\r | |
1305 | if (SoftReset (0, Snp) < 0) {\r | |
1306 | DEBUG ((EFI_D_ERROR, "Error: Soft Reset Failed: Hardware Error.\n"));\r | |
1307 | return EFI_DEVICE_ERROR;\r | |
1308 | }\r | |
1309 | \r | |
1310 | // Acknowledge the RXE\r | |
1311 | MmioWrite32 (LAN9118_INT_STS, INSTS_RXE);\r | |
1312 | gBS->Stall (LAN9118_STALL);\r | |
1313 | \r | |
1314 | // Restart the rx (and do not clear FIFO)\r | |
1315 | StartRx (0, Snp);\r | |
1316 | \r | |
1317 | // Say that command could not be sent\r | |
1318 | return EFI_DEVICE_ERROR;\r | |
1319 | }\r | |
1320 | \r | |
1321 | // Get the destination address\r | |
1322 | if (DstAddr != NULL) {\r | |
1323 | Dst.Addr[0] = (RawData[0] & 0xFF);\r | |
1324 | Dst.Addr[1] = (RawData[0] & 0xFF00) >> 8;\r | |
1325 | Dst.Addr[2] = (RawData[0] & 0xFF0000) >> 16;\r | |
1326 | Dst.Addr[3] = (RawData[0] & 0xFF000000) >> 24;\r | |
1327 | Dst.Addr[4] = (RawData[1] & 0xFF);\r | |
1328 | Dst.Addr[5] = (RawData[1] & 0xFF00) >> 8;\r | |
1329 | CopyMem (DstAddr, &Dst, NET_ETHER_ADDR_LEN);\r | |
1330 | }\r | |
1331 | \r | |
1332 | // Get the source address\r | |
1333 | if (SrcAddr != NULL) {\r | |
1334 | Src.Addr[0] = (RawData[1] & 0xFF0000) >> 16;\r | |
1335 | Src.Addr[1] = (RawData[1] & 0xFF000000) >> 24;\r | |
1336 | Src.Addr[2] = (RawData[2] & 0xFF);\r | |
1337 | Src.Addr[3] = (RawData[2] & 0xFF00) >> 8;\r | |
1338 | Src.Addr[4] = (RawData[2] & 0xFF0000) >> 16;\r | |
1339 | Src.Addr[5] = (RawData[2] & 0xFF000000) >> 24;\r | |
1340 | CopyMem (SrcAddr,&Src, NET_ETHER_ADDR_LEN);\r | |
1341 | }\r | |
1342 | \r | |
1343 | // Get the protocol\r | |
1344 | if (Protocol != NULL) {\r | |
1345 | *Protocol = NTOHS (RawData[3] & 0xFFFF);\r | |
1346 | }\r | |
1347 | \r | |
1348 | #if defined(EVAL_PERFORMANCE)\r | |
1349 | UINT64 EndClock = GetPerformanceCounter ();\r | |
1350 | DEBUG ((EFI_D_ERROR, "Receive Time processing: %d counts @ %d Hz\n", StartClock - EndClock,Perf));\r | |
1351 | #endif\r | |
1352 | \r | |
1353 | LanDriver->Stats.RxGoodFrames += 1;\r | |
1354 | \r | |
1355 | return EFI_SUCCESS;\r | |
1356 | }\r |