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1 | /** @file\r |
2 | * SMSC LAN91x series Network Controller Driver.\r | |
3 | *\r | |
4 | * Copyright (c) 2013-2017 Linaro.org\r | |
5 | *\r | |
6 | * Derived from the LAN9118 driver. Original sources\r | |
7 | * Copyright (c) 2012-2013, ARM Limited. All rights reserved.\r | |
8 | *\r | |
878b807a | 9 | * SPDX-License-Identifier: BSD-2-Clause-Patent\r |
4395f82e LL |
10 | *\r |
11 | **/\r | |
12 | \r | |
13 | #include <Uefi.h>\r | |
14 | #include <Uefi/UefiSpec.h>\r | |
15 | #include <Base.h>\r | |
16 | \r | |
17 | // Protocols used by this driver\r | |
18 | #include <Protocol/SimpleNetwork.h>\r | |
19 | #include <Protocol/ComponentName2.h>\r | |
20 | #include <Protocol/PxeBaseCode.h>\r | |
21 | #include <Protocol/DevicePath.h>\r | |
22 | \r | |
23 | // Libraries used by this driver\r | |
24 | #include <Library/UefiLib.h>\r | |
25 | #include <Library/DebugLib.h>\r | |
26 | #include <Library/UefiBootServicesTableLib.h>\r | |
27 | #include <Library/MemoryAllocationLib.h>\r | |
28 | #include <Library/IoLib.h>\r | |
29 | #include <Library/PcdLib.h>\r | |
30 | #include <Library/NetLib.h>\r | |
31 | #include <Library/DevicePathLib.h>\r | |
32 | \r | |
33 | // Hardware register definitions\r | |
34 | #include "Lan91xDxeHw.h"\r | |
35 | \r | |
36 | // Debugging output options\r | |
37 | //#define LAN91X_PRINT_REGISTERS 1\r | |
38 | //#define LAN91X_PRINT_PACKET_HEADERS 1\r | |
39 | //#define LAN91X_PRINT_RECEIVE_FILTERS 1\r | |
40 | \r | |
41 | // Chip power-down option -- UNTESTED\r | |
42 | //#define LAN91X_POWER_DOWN 1\r | |
43 | \r | |
44 | /*---------------------------------------------------------------------------------------------------------------------\r | |
45 | \r | |
46 | LAN91x Information Structure\r | |
47 | \r | |
48 | ---------------------------------------------------------------------------------------------------------------------*/\r | |
49 | typedef struct _LAN91X_DRIVER {\r | |
50 | // Driver signature\r | |
51 | UINT32 Signature;\r | |
52 | EFI_HANDLE ControllerHandle;\r | |
53 | \r | |
54 | // EFI SNP protocol instances\r | |
55 | EFI_SIMPLE_NETWORK_PROTOCOL Snp;\r | |
56 | EFI_SIMPLE_NETWORK_MODE SnpMode;\r | |
57 | \r | |
58 | // EFI Snp statistics instance\r | |
59 | EFI_NETWORK_STATISTICS Stats;\r | |
60 | \r | |
61 | // Transmit Buffer recycle queue\r | |
62 | \r | |
63 | LIST_ENTRY TransmitQueueHead;\r | |
64 | \r | |
65 | // Register access variables\r | |
66 | UINTN IoBase; // I/O Base Address\r | |
67 | UINT8 Revision; // Chip Revision Number\r | |
68 | INT8 PhyAd; // Phy Address\r | |
69 | UINT8 BankSel; // Currently selected register bank\r | |
70 | \r | |
71 | } LAN91X_DRIVER;\r | |
72 | \r | |
73 | #define LAN91X_NO_PHY (-1) // PhyAd value if PHY not detected\r | |
74 | \r | |
75 | #define LAN91X_SIGNATURE SIGNATURE_32('S', 'M', '9', '1')\r | |
76 | #define INSTANCE_FROM_SNP_THIS(a) CR(a, LAN91X_DRIVER, Snp, LAN91X_SIGNATURE)\r | |
77 | \r | |
78 | #define LAN91X_STALL 2\r | |
79 | #define LAN91X_MEMORY_ALLOC_POLLS 100 // Max times to poll for memory allocation\r | |
80 | #define LAN91X_PKT_OVERHEAD 6 // Overhead bytes in packet buffer\r | |
81 | \r | |
82 | // Synchronization TPLs\r | |
83 | #define LAN91X_TPL TPL_CALLBACK\r | |
84 | \r | |
85 | // Most common CRC32 Polynomial for little endian machines\r | |
86 | #define CRC_POLYNOMIAL 0xEDB88320\r | |
87 | \r | |
88 | \r | |
89 | typedef struct {\r | |
90 | MAC_ADDR_DEVICE_PATH Lan91x;\r | |
91 | EFI_DEVICE_PATH_PROTOCOL End;\r | |
92 | } LAN91X_DEVICE_PATH;\r | |
93 | \r | |
94 | LAN91X_DEVICE_PATH Lan91xPathTemplate = {\r | |
95 | {\r | |
96 | {\r | |
97 | MESSAGING_DEVICE_PATH, MSG_MAC_ADDR_DP,\r | |
98 | { (UINT8) (sizeof(MAC_ADDR_DEVICE_PATH)), (UINT8) ((sizeof(MAC_ADDR_DEVICE_PATH)) >> 8) }\r | |
99 | },\r | |
100 | { { 0 } },\r | |
101 | 0\r | |
102 | },\r | |
103 | {\r | |
104 | END_DEVICE_PATH_TYPE,\r | |
105 | END_ENTIRE_DEVICE_PATH_SUBTYPE,\r | |
106 | { sizeof(EFI_DEVICE_PATH_PROTOCOL), 0 }\r | |
107 | }\r | |
108 | };\r | |
109 | \r | |
110 | // Chip ID numbers and name strings\r | |
111 | #define CHIP_9192 3\r | |
112 | #define CHIP_9194 4\r | |
113 | #define CHIP_9195 5\r | |
114 | #define CHIP_9196 6\r | |
115 | #define CHIP_91100 7\r | |
116 | #define CHIP_91100FD 8\r | |
117 | #define CHIP_91111FD 9\r | |
118 | \r | |
119 | STATIC CHAR16 CONST * CONST ChipIds[ 16 ] = {\r | |
120 | NULL, NULL, NULL,\r | |
121 | /* 3 */ L"SMC91C90/91C92",\r | |
122 | /* 4 */ L"SMC91C94",\r | |
123 | /* 5 */ L"SMC91C95",\r | |
124 | /* 6 */ L"SMC91C96",\r | |
125 | /* 7 */ L"SMC91C100",\r | |
126 | /* 8 */ L"SMC91C100FD",\r | |
127 | /* 9 */ L"SMC91C11xFD",\r | |
128 | NULL, NULL, NULL,\r | |
129 | NULL, NULL, NULL\r | |
130 | };\r | |
131 | \r | |
132 | /* ------------------ TxBuffer Queue structures ------------------- */\r | |
133 | \r | |
134 | typedef struct {\r | |
135 | VOID *Buf;\r | |
136 | UINTN Length;\r | |
137 | } MSK_SYSTEM_BUF;\r | |
138 | \r | |
139 | typedef struct {\r | |
140 | UINTN Signature;\r | |
141 | LIST_ENTRY Link;\r | |
142 | MSK_SYSTEM_BUF SystemBuf;\r | |
143 | } MSK_LINKED_SYSTEM_BUF;\r | |
144 | \r | |
145 | #define TX_MBUF_SIGNATURE SIGNATURE_32 ('t','x','m','b')\r | |
146 | \r | |
147 | /* ------------------ MAC Address Hash Calculations ------------------- */\r | |
148 | \r | |
149 | /*\r | |
150 | ** Generate a hash value from a multicast address\r | |
151 | **\r | |
152 | ** This uses the Ethernet standard CRC32 algorithm\r | |
153 | **\r | |
154 | ** INFO USED:\r | |
155 | ** 1: http://en.wikipedia.org/wiki/Cyclic_redundancy_check\r | |
156 | **\r | |
157 | ** 2: http://www.erg.abdn.ac.uk/~gorry/eg3567/dl-pages/crc.html\r | |
158 | **\r | |
159 | ** 3: http://en.wikipedia.org/wiki/Computation_of_CRC\r | |
160 | */\r | |
161 | STATIC\r | |
162 | UINT32\r | |
163 | MulticastHash (\r | |
164 | IN EFI_MAC_ADDRESS *Mac,\r | |
165 | IN UINT32 AddrLen\r | |
166 | )\r | |
167 | {\r | |
168 | UINT32 Iter;\r | |
169 | UINT32 Remainder;\r | |
170 | UINT32 Crc32;\r | |
171 | UINT8 *Addr;\r | |
172 | \r | |
173 | // 0xFFFFFFFF is standard seed for Ethernet\r | |
174 | Remainder = 0xFFFFFFFF;\r | |
175 | \r | |
176 | // Generate the remainder byte-by-byte (LSB first)\r | |
177 | Addr = &Mac->Addr[0];\r | |
178 | while (AddrLen-- > 0) {\r | |
179 | Remainder ^= *Addr++;\r | |
180 | for (Iter = 0; Iter < 8; ++Iter) {\r | |
181 | // Check if exponent is set\r | |
182 | if ((Remainder & 1) != 0) {\r | |
183 | Remainder = (Remainder >> 1) ^ CRC_POLYNOMIAL;\r | |
184 | } else {\r | |
185 | Remainder = (Remainder >> 1) ^ 0;\r | |
186 | }\r | |
187 | }\r | |
188 | }\r | |
189 | \r | |
190 | // Reverse the bits of the remainder\r | |
191 | Crc32 = 0;\r | |
192 | for (Iter = 0; Iter < 32; ++Iter) {\r | |
193 | Crc32 <<= 1;\r | |
194 | Crc32 |= Remainder & 1;\r | |
195 | Remainder >>= 1;\r | |
196 | }\r | |
197 | return Crc32;\r | |
198 | }\r | |
199 | \r | |
200 | \r | |
201 | /* ---------------- Banked Register Operations ------------------ */\r | |
202 | \r | |
203 | // Select the proper I/O bank\r | |
204 | STATIC\r | |
205 | VOID\r | |
206 | SelectIoBank (\r | |
207 | LAN91X_DRIVER *LanDriver,\r | |
208 | UINTN Register\r | |
209 | )\r | |
210 | {\r | |
211 | UINT8 Bank;\r | |
212 | \r | |
213 | Bank = RegisterToBank (Register);\r | |
214 | \r | |
215 | // Select the proper I/O bank\r | |
216 | if (LanDriver->BankSel != Bank) {\r | |
217 | MmioWrite16 (LanDriver->IoBase + LAN91X_BANK_OFFSET, Bank);\r | |
218 | LanDriver->BankSel = Bank;\r | |
219 | }\r | |
220 | }\r | |
221 | \r | |
222 | // Read a 16-bit I/O-space register\r | |
223 | STATIC\r | |
224 | UINT16\r | |
225 | ReadIoReg16 (\r | |
226 | LAN91X_DRIVER *LanDriver,\r | |
227 | UINTN Register\r | |
228 | )\r | |
229 | {\r | |
230 | UINT8 Offset;\r | |
231 | \r | |
232 | // Select the proper I/O bank\r | |
233 | SelectIoBank (LanDriver, Register);\r | |
234 | \r | |
235 | // Read the requested register\r | |
236 | Offset = RegisterToOffset (Register);\r | |
237 | return MmioRead16 (LanDriver->IoBase + Offset);\r | |
238 | }\r | |
239 | \r | |
240 | // Write a 16-bit I/O-space register\r | |
241 | STATIC\r | |
242 | UINT16\r | |
243 | WriteIoReg16 (\r | |
244 | LAN91X_DRIVER *LanDriver,\r | |
245 | UINTN Register,\r | |
246 | UINT16 Value\r | |
247 | )\r | |
248 | {\r | |
249 | UINT8 Offset;\r | |
250 | \r | |
251 | // Select the proper I/O bank\r | |
252 | SelectIoBank (LanDriver, Register);\r | |
253 | \r | |
254 | // Write the requested register\r | |
255 | Offset = RegisterToOffset (Register);\r | |
256 | return MmioWrite16 (LanDriver->IoBase + Offset, Value);\r | |
257 | }\r | |
258 | \r | |
259 | // Read an 8-bit I/O-space register\r | |
260 | STATIC\r | |
261 | UINT8\r | |
262 | ReadIoReg8 (\r | |
263 | LAN91X_DRIVER *LanDriver,\r | |
264 | UINTN Register\r | |
265 | )\r | |
266 | {\r | |
267 | UINT8 Offset;\r | |
268 | \r | |
269 | // Select the proper I/O bank\r | |
270 | SelectIoBank (LanDriver, Register);\r | |
271 | \r | |
272 | // Read the requested register\r | |
273 | Offset = RegisterToOffset (Register);\r | |
274 | return MmioRead8 (LanDriver->IoBase + Offset);\r | |
275 | }\r | |
276 | \r | |
277 | // Write an 8-bit I/O-space register\r | |
278 | STATIC\r | |
279 | UINT8\r | |
280 | WriteIoReg8 (\r | |
281 | LAN91X_DRIVER *LanDriver,\r | |
282 | UINTN Register,\r | |
283 | UINT8 Value\r | |
284 | )\r | |
285 | {\r | |
286 | UINT8 Offset;\r | |
287 | \r | |
288 | // Select the proper I/O bank\r | |
289 | SelectIoBank (LanDriver, Register);\r | |
290 | \r | |
291 | // Write the requested register\r | |
292 | Offset = RegisterToOffset (Register);\r | |
293 | return MmioWrite8 (LanDriver->IoBase + Offset, Value);\r | |
294 | }\r | |
295 | \r | |
296 | \r | |
297 | /* ---------------- MII/PHY Access Operations ------------------ */\r | |
298 | \r | |
299 | #define LAN91X_MDIO_STALL 1\r | |
300 | \r | |
301 | STATIC\r | |
302 | VOID\r | |
303 | MdioOutput (\r | |
304 | LAN91X_DRIVER *LanDriver,\r | |
305 | UINTN Bits,\r | |
306 | UINT32 Value\r | |
307 | )\r | |
308 | {\r | |
309 | UINT16 MgmtReg;\r | |
310 | UINT32 Mask;\r | |
311 | \r | |
312 | MgmtReg = ReadIoReg16 (LanDriver, LAN91X_MGMT);\r | |
313 | MgmtReg &= ~MGMT_MCLK;\r | |
314 | MgmtReg |= MGMT_MDOE;\r | |
315 | \r | |
316 | for (Mask = (1 << (Bits - 1)); Mask != 0; Mask >>= 1) {\r | |
317 | if ((Value & Mask) != 0) {\r | |
318 | MgmtReg |= MGMT_MDO;\r | |
319 | } else {\r | |
320 | MgmtReg &= ~MGMT_MDO;\r | |
321 | }\r | |
322 | \r | |
323 | WriteIoReg16 (LanDriver, LAN91X_MGMT, MgmtReg);\r | |
324 | gBS->Stall (LAN91X_MDIO_STALL);\r | |
325 | WriteIoReg16 (LanDriver, LAN91X_MGMT, MgmtReg | MGMT_MCLK);\r | |
326 | gBS->Stall (LAN91X_MDIO_STALL);\r | |
327 | }\r | |
328 | }\r | |
329 | #define PHY_OUTPUT_TIME (2 * LAN91X_MDIO_STALL)\r | |
330 | \r | |
331 | STATIC\r | |
332 | UINT32\r | |
333 | MdioInput (\r | |
334 | LAN91X_DRIVER *LanDriver,\r | |
335 | UINTN Bits\r | |
336 | )\r | |
337 | {\r | |
338 | UINT16 MgmtReg;\r | |
339 | UINT32 Mask;\r | |
340 | UINT32 Value;\r | |
341 | \r | |
342 | MgmtReg = ReadIoReg16 (LanDriver, LAN91X_MGMT);\r | |
343 | MgmtReg &= ~(MGMT_MDOE | MGMT_MCLK | MGMT_MDO);\r | |
344 | WriteIoReg16 (LanDriver, LAN91X_MGMT, MgmtReg);\r | |
345 | \r | |
346 | Value = 0;\r | |
347 | for (Mask = (1 << (Bits - 1)); Mask != 0; Mask >>= 1) {\r | |
348 | if ((ReadIoReg16 (LanDriver, LAN91X_MGMT) & MGMT_MDI) != 0) {\r | |
349 | Value |= Mask;\r | |
350 | }\r | |
351 | \r | |
352 | WriteIoReg16 (LanDriver, LAN91X_MGMT, MgmtReg);\r | |
353 | gBS->Stall (LAN91X_MDIO_STALL);\r | |
354 | WriteIoReg16 (LanDriver, LAN91X_MGMT, MgmtReg | MGMT_MCLK);\r | |
355 | gBS->Stall (LAN91X_MDIO_STALL);\r | |
356 | }\r | |
357 | \r | |
358 | return Value;\r | |
359 | }\r | |
360 | #define PHY_INPUT_TIME (2 * LAN91X_MDIO_STALL)\r | |
361 | \r | |
362 | STATIC\r | |
363 | VOID\r | |
364 | MdioIdle (\r | |
365 | LAN91X_DRIVER *LanDriver\r | |
366 | )\r | |
367 | {\r | |
368 | UINT16 MgmtReg;\r | |
369 | \r | |
370 | MgmtReg = ReadIoReg16 (LanDriver, LAN91X_MGMT);\r | |
371 | MgmtReg &= ~(MGMT_MDOE | MGMT_MCLK | MGMT_MDO);\r | |
372 | WriteIoReg16 (LanDriver, LAN91X_MGMT, MgmtReg);\r | |
373 | }\r | |
374 | \r | |
375 | // Write to a PHY register\r | |
376 | STATIC\r | |
377 | VOID\r | |
378 | WritePhyReg16 (\r | |
379 | LAN91X_DRIVER *LanDriver,\r | |
380 | UINTN RegAd,\r | |
381 | UINT16 Value\r | |
382 | )\r | |
383 | {\r | |
384 | // Bit-bang the MII Serial Frame write operation\r | |
385 | MdioOutput (LanDriver, 32, 0xffffffff); // Send 32 Ones as a preamble\r | |
386 | MdioOutput (LanDriver, 2, 0x01); // Send Start (01)\r | |
387 | MdioOutput (LanDriver, 2, 0x01); // Send Write (01)\r | |
388 | MdioOutput (LanDriver, 5, LanDriver->PhyAd); // Send PHYAD[4:0]\r | |
389 | MdioOutput (LanDriver, 5, RegAd); // Send REGAD[4:0]\r | |
390 | MdioOutput (LanDriver, 2, 0x02); // Send TurnAround (10)\r | |
391 | MdioOutput (LanDriver, 16, Value); // Write 16 data bits\r | |
392 | \r | |
393 | // Idle the MDIO bus\r | |
394 | MdioIdle (LanDriver);\r | |
395 | }\r | |
396 | // Calculate approximate time to write a PHY register in microseconds\r | |
397 | #define PHY_WRITE_TIME ((32 + 2 + 2 + 5 + 5 + 2 + 16) * PHY_OUTPUT_TIME)\r | |
398 | \r | |
399 | // Read from a PHY register\r | |
400 | STATIC\r | |
401 | UINT16\r | |
402 | ReadPhyReg16 (\r | |
403 | LAN91X_DRIVER *LanDriver,\r | |
404 | UINTN RegAd\r | |
405 | )\r | |
406 | {\r | |
407 | UINT32 Value;\r | |
408 | \r | |
409 | // Bit-bang the MII Serial Frame read operation\r | |
410 | MdioOutput (LanDriver, 32, 0xffffffff); // Send 32 Ones as a preamble\r | |
411 | MdioOutput (LanDriver, 2, 0x01); // Send Start (01)\r | |
412 | MdioOutput (LanDriver, 2, 0x02); // Send Read (10)\r | |
413 | MdioOutput (LanDriver, 5, LanDriver->PhyAd); // Send PHYAD[4:0]\r | |
414 | MdioOutput (LanDriver, 5, RegAd); // Send REGAD[4:0]\r | |
415 | \r | |
416 | (VOID) MdioInput (LanDriver, 2); // Discard TurnAround bits\r | |
417 | Value = MdioInput (LanDriver, 16); // Read 16 data bits\r | |
418 | \r | |
419 | // Idle the MDIO bus\r | |
420 | MdioIdle (LanDriver);\r | |
421 | \r | |
422 | return (Value & 0xffff);\r | |
423 | }\r | |
424 | // Calculate approximate time to read a PHY register in microseconds\r | |
425 | #define PHY_READ_TIME (((32 + 2 + 2 + 5 + 5) * PHY_OUTPUT_TIME) + \\r | |
426 | ((2 + 16) * PHY_INPUT_TIME))\r | |
427 | \r | |
428 | \r | |
429 | /* ---------------- Debug Functions ------------------ */\r | |
430 | \r | |
431 | #ifdef LAN91X_PRINT_REGISTERS\r | |
432 | STATIC\r | |
433 | VOID\r | |
434 | PrintIoRegisters (\r | |
435 | IN LAN91X_DRIVER *LanDriver\r | |
436 | )\r | |
437 | {\r | |
438 | UINTN Bank;\r | |
439 | UINTN Offset;\r | |
440 | UINT16 Value;\r | |
441 | \r | |
442 | DEBUG ((DEBUG_ERROR, "\nLAN91x I/O Register Dump:\n"));\r | |
443 | \r | |
c6a72cd7 | 444 | // Print current bank select register\r |
4395f82e LL |
445 | Value = MmioRead16 (LanDriver->IoBase + LAN91X_BANK_OFFSET);\r |
446 | DEBUG ((DEBUG_ERROR, " BankSel: %d Bank Register %04x (%d)\n",\r | |
447 | LanDriver->BankSel, Value, Value & 0x0007));\r | |
448 | \r | |
449 | // Print all I/O registers\r | |
450 | for (Offset = 0; Offset < 0x0e; Offset += 2) {\r | |
451 | DEBUG ((DEBUG_ERROR, " %02x:", Offset));\r | |
452 | for (Bank = 0; Bank <= 3; ++Bank) {\r | |
453 | DEBUG ((DEBUG_ERROR, " %04x", ReadIoReg16 (LanDriver, MakeRegister (Bank, Offset))));\r | |
454 | }\r | |
455 | DEBUG ((DEBUG_ERROR, "\n"));\r | |
456 | }\r | |
457 | }\r | |
458 | \r | |
459 | STATIC\r | |
460 | VOID\r | |
461 | PrintPhyRegisters (\r | |
462 | IN LAN91X_DRIVER *LanDriver\r | |
463 | )\r | |
464 | {\r | |
465 | UINTN RegNum;\r | |
466 | \r | |
467 | DEBUG ((DEBUG_ERROR, "\nLAN91x Phy %d Register Dump:\n", LanDriver->PhyAd));\r | |
468 | \r | |
469 | // Print all Phy registers\r | |
470 | for (RegNum = 0; RegNum <= 5; ++RegNum) {\r | |
471 | DEBUG ((DEBUG_ERROR, " %2d: %04x\n",\r | |
472 | RegNum,\r | |
473 | ReadPhyReg16 (LanDriver, RegNum)\r | |
474 | ));\r | |
475 | }\r | |
476 | for (RegNum = 16; RegNum <= 20; ++RegNum) {\r | |
477 | DEBUG ((DEBUG_ERROR, " %2d: %04x\n",\r | |
478 | RegNum,\r | |
479 | ReadPhyReg16 (LanDriver, RegNum)\r | |
480 | ));\r | |
481 | }\r | |
482 | }\r | |
483 | #endif\r | |
484 | \r | |
485 | #if LAN91X_PRINT_PACKET_HEADERS\r | |
486 | STATIC\r | |
487 | VOID\r | |
488 | PrintIpDgram (\r | |
489 | IN CONST VOID *DstMac,\r | |
490 | IN CONST VOID *SrcMac,\r | |
491 | IN CONST VOID *Proto,\r | |
492 | IN CONST VOID *IpDgram\r | |
493 | )\r | |
494 | {\r | |
495 | CONST UINT8 *Ptr;\r | |
496 | UINT16 SrcPort;\r | |
497 | UINT16 DstPort;\r | |
498 | \r | |
499 | Ptr = DstMac;\r | |
500 | DEBUG ((DEBUG_ERROR, " Dst: %02x-%02x-%02x",\r | |
501 | Ptr[0], Ptr[1], Ptr[2]));\r | |
502 | DEBUG ((DEBUG_ERROR, "-%02x-%02x-%02x",\r | |
503 | Ptr[3], Ptr[4], Ptr[5]));\r | |
504 | \r | |
505 | Ptr = SrcMac;\r | |
506 | DEBUG ((DEBUG_ERROR, " Src: %02x-%02x-%02x",\r | |
507 | Ptr[0], Ptr[1], Ptr[2]));\r | |
508 | DEBUG ((DEBUG_ERROR, "-%02x-%02x-%02x",\r | |
509 | Ptr[3], Ptr[4], Ptr[5]));\r | |
510 | \r | |
511 | Ptr = Proto;\r | |
512 | DEBUG ((DEBUG_ERROR, " Proto: %02x%02x\n",\r | |
513 | Ptr[0], Ptr[1]));\r | |
514 | \r | |
515 | Ptr = IpDgram;\r | |
516 | switch (Ptr[9]) {\r | |
517 | case EFI_IP_PROTO_ICMP:\r | |
518 | DEBUG ((DEBUG_ERROR, " ICMP"));\r | |
519 | break;\r | |
520 | case EFI_IP_PROTO_TCP:\r | |
521 | DEBUG ((DEBUG_ERROR, " TCP"));\r | |
522 | break;\r | |
523 | case EFI_IP_PROTO_UDP:\r | |
524 | DEBUG ((DEBUG_ERROR, " UDP"));\r | |
525 | break;\r | |
526 | default:\r | |
527 | DEBUG ((DEBUG_ERROR, " IpProto %d\n", Ptr[9]));\r | |
528 | return;\r | |
529 | }\r | |
530 | \r | |
531 | DEBUG ((DEBUG_ERROR, " SrcIp: %d.%d.%d.%d",\r | |
532 | Ptr[12], Ptr[13], Ptr[14], Ptr[15]));\r | |
533 | DEBUG ((DEBUG_ERROR, " DstIp: %d.%d.%d.%d",\r | |
534 | Ptr[16], Ptr[17], Ptr[18], Ptr[19]));\r | |
535 | \r | |
536 | SrcPort = (Ptr[20] << 8) | Ptr[21];\r | |
537 | DstPort = (Ptr[22] << 8) | Ptr[23];\r | |
538 | DEBUG ((DEBUG_ERROR, " SrcPort: %d DstPort: %d\n", SrcPort, DstPort));\r | |
539 | }\r | |
540 | #endif\r | |
541 | \r | |
542 | \r | |
543 | /* ---------------- PHY Management Operations ----------------- */\r | |
544 | \r | |
545 | STATIC\r | |
546 | EFI_STATUS\r | |
547 | PhyDetect (\r | |
548 | IN LAN91X_DRIVER *LanDriver\r | |
549 | )\r | |
550 | {\r | |
551 | UINT16 PhyId1;\r | |
552 | UINT16 PhyId2;\r | |
553 | \r | |
554 | for (LanDriver->PhyAd = 0x1f; LanDriver->PhyAd >= 0 ; --LanDriver->PhyAd) {\r | |
555 | PhyId1 = ReadPhyReg16 (LanDriver, PHY_INDEX_ID1);\r | |
556 | PhyId2 = ReadPhyReg16 (LanDriver, PHY_INDEX_ID2);\r | |
557 | \r | |
558 | if ((PhyId1 != 0x0000) && (PhyId1 != 0xffff) &&\r | |
559 | (PhyId2 != 0x0000) && (PhyId2 != 0xffff)) {\r | |
560 | if ((PhyId1 == 0x0016) && ((PhyId2 & 0xfff0) == 0xf840)) {\r | |
561 | DEBUG ((DEBUG_ERROR, "LAN91x: PHY type LAN83C183 (LAN91C111 Internal)\n"));\r | |
562 | } else if ((PhyId1 == 0x0282) && ((PhyId2 & 0xfff0) == 0x1c50)) {\r | |
563 | DEBUG ((DEBUG_ERROR, "LAN91x: PHY type LAN83C180\n"));\r | |
564 | } else {\r | |
565 | DEBUG ((DEBUG_ERROR, "LAN91x: PHY id %04x:%04x\n", PhyId1, PhyId2));\r | |
566 | }\r | |
567 | return EFI_SUCCESS;\r | |
568 | }\r | |
569 | }\r | |
570 | \r | |
571 | DEBUG ((DEBUG_ERROR, "LAN91x: PHY detection failed\n"));\r | |
572 | return EFI_NO_MEDIA;\r | |
573 | }\r | |
574 | \r | |
575 | \r | |
576 | // Check the Link Status and take appropriate action\r | |
577 | STATIC\r | |
578 | BOOLEAN\r | |
579 | CheckLinkStatus (\r | |
580 | IN LAN91X_DRIVER *LanDriver\r | |
581 | )\r | |
582 | {\r | |
583 | UINT16 PhyStatus;\r | |
584 | \r | |
585 | // Get the PHY Status\r | |
586 | PhyStatus = ReadPhyReg16 (LanDriver, PHY_INDEX_BASIC_STATUS);\r | |
587 | \r | |
588 | return (PhyStatus & PHYSTS_LINK_STS) != 0;\r | |
589 | }\r | |
590 | \r | |
591 | \r | |
592 | // Do auto-negotiation\r | |
593 | STATIC\r | |
594 | EFI_STATUS\r | |
595 | PhyAutoNegotiate (\r | |
596 | IN LAN91X_DRIVER *LanDriver\r | |
597 | )\r | |
598 | {\r | |
599 | UINTN Retries;\r | |
600 | UINT16 PhyControl;\r | |
601 | UINT16 PhyStatus;\r | |
602 | UINT16 PhyAdvert;\r | |
603 | \r | |
604 | // If there isn't a PHY, don't try to reset it\r | |
605 | if (LanDriver->PhyAd == LAN91X_NO_PHY) {\r | |
606 | return EFI_SUCCESS;\r | |
607 | }\r | |
608 | \r | |
609 | // Next check that auto-negotiation is supported\r | |
610 | PhyStatus = ReadPhyReg16 (LanDriver, PHY_INDEX_BASIC_STATUS);\r | |
611 | if ((PhyStatus & PHYSTS_AUTO_CAP) == 0) {\r | |
612 | return EFI_SUCCESS;\r | |
613 | }\r | |
614 | \r | |
615 | // Translate capabilities to advertise\r | |
616 | PhyAdvert = PHYANA_CSMA;\r | |
617 | \r | |
618 | if ((PhyStatus & PHYSTS_10BASET_HDPLX) != 0) {\r | |
619 | PhyAdvert |= PHYANA_10BASET;\r | |
620 | }\r | |
621 | if ((PhyStatus & PHYSTS_10BASET_FDPLX) != 0) {\r | |
622 | PhyAdvert |= PHYANA_10BASETFD;\r | |
623 | }\r | |
624 | if ((PhyStatus & PHYSTS_100BASETX_HDPLX) != 0) {\r | |
625 | PhyAdvert |= PHYANA_100BASETX;\r | |
626 | }\r | |
627 | if ((PhyStatus & PHYSTS_100BASETX_FDPLX) != 0) {\r | |
628 | PhyAdvert |= PHYANA_100BASETXFD;\r | |
629 | }\r | |
630 | if ((PhyStatus & PHYSTS_100BASE_T4) != 0) {\r | |
631 | PhyAdvert |= PHYANA_100BASET4;\r | |
632 | }\r | |
633 | \r | |
634 | // Set the capabilities to advertise\r | |
635 | WritePhyReg16 (LanDriver, PHY_INDEX_AUTO_NEG_ADVERT, PhyAdvert);\r | |
636 | (VOID) ReadPhyReg16 (LanDriver, PHY_INDEX_AUTO_NEG_ADVERT);\r | |
637 | \r | |
638 | // Restart Auto-Negotiation\r | |
639 | PhyControl = ReadPhyReg16 (LanDriver, PHY_INDEX_BASIC_CTRL);\r | |
640 | PhyControl &= ~(PHYCR_SPEED_SEL | PHYCR_DUPLEX_MODE);\r | |
641 | PhyControl |= PHYCR_AUTO_EN | PHYCR_RST_AUTO;\r | |
642 | WritePhyReg16 (LanDriver, PHY_INDEX_BASIC_CTRL, PhyControl);\r | |
643 | \r | |
644 | // Wait up to 2 seconds for the process to complete\r | |
645 | Retries = 2000000 / (PHY_READ_TIME + 100);\r | |
646 | while ((ReadPhyReg16 (LanDriver, PHY_INDEX_BASIC_STATUS) & PHYSTS_AUTO_COMP) == 0) {\r | |
647 | if (--Retries == 0) {\r | |
648 | DEBUG ((DEBUG_ERROR, "LAN91x: PHY auto-negotiation timed-out\n"));\r | |
649 | return EFI_TIMEOUT;\r | |
650 | }\r | |
651 | gBS->Stall (100);\r | |
652 | }\r | |
653 | \r | |
654 | return EFI_SUCCESS;\r | |
655 | }\r | |
656 | \r | |
657 | \r | |
658 | // Perform PHY software reset\r | |
659 | STATIC\r | |
660 | EFI_STATUS\r | |
661 | PhySoftReset (\r | |
662 | IN LAN91X_DRIVER *LanDriver\r | |
663 | )\r | |
664 | {\r | |
665 | UINTN Retries;\r | |
666 | \r | |
667 | // If there isn't a PHY, don't try to reset it\r | |
668 | if (LanDriver->PhyAd == LAN91X_NO_PHY) {\r | |
669 | return EFI_SUCCESS;\r | |
670 | }\r | |
671 | \r | |
672 | // Request a PHY reset\r | |
673 | WritePhyReg16 (LanDriver, PHY_INDEX_BASIC_CTRL, PHYCR_RESET);\r | |
674 | \r | |
675 | // The internal PHY will reset within 50ms. Allow 100ms.\r | |
676 | Retries = 100000 / (PHY_READ_TIME + 100);\r | |
677 | while (ReadPhyReg16 (LanDriver, PHY_INDEX_BASIC_CTRL) & PHYCR_RESET) {\r | |
678 | if (--Retries == 0) {\r | |
679 | DEBUG ((DEBUG_ERROR, "LAN91x: PHY reset timed-out\n"));\r | |
680 | return EFI_TIMEOUT;\r | |
681 | }\r | |
682 | gBS->Stall (100);\r | |
683 | }\r | |
684 | \r | |
685 | return EFI_SUCCESS;\r | |
686 | }\r | |
687 | \r | |
688 | \r | |
689 | /* ---------------- General Operations ----------------- */\r | |
690 | \r | |
691 | STATIC\r | |
692 | EFI_MAC_ADDRESS\r | |
693 | GetCurrentMacAddress (\r | |
694 | IN LAN91X_DRIVER *LanDriver\r | |
695 | )\r | |
696 | {\r | |
697 | UINTN RegNum;\r | |
698 | UINT8 *Addr;\r | |
699 | EFI_MAC_ADDRESS MacAddress;\r | |
700 | \r | |
701 | SetMem (&MacAddress, sizeof(MacAddress), 0);\r | |
702 | \r | |
703 | Addr = &MacAddress.Addr[0];\r | |
704 | for (RegNum = LAN91X_IAR0; RegNum <= LAN91X_IAR5; ++RegNum) {\r | |
705 | *Addr = ReadIoReg8 (LanDriver, RegNum);\r | |
706 | ++Addr;\r | |
707 | }\r | |
708 | \r | |
709 | return MacAddress;\r | |
710 | }\r | |
711 | \r | |
712 | STATIC\r | |
713 | EFI_STATUS\r | |
714 | SetCurrentMacAddress (\r | |
715 | IN LAN91X_DRIVER *LanDriver,\r | |
716 | IN EFI_MAC_ADDRESS *MacAddress\r | |
717 | )\r | |
718 | {\r | |
719 | UINTN RegNum;\r | |
720 | UINT8 *Addr;\r | |
721 | \r | |
722 | Addr = &MacAddress->Addr[0];\r | |
723 | for (RegNum = LAN91X_IAR0; RegNum <= LAN91X_IAR5; ++RegNum) {\r | |
724 | WriteIoReg8 (LanDriver, RegNum, *Addr);\r | |
725 | ++Addr;\r | |
726 | }\r | |
727 | \r | |
728 | return EFI_SUCCESS;\r | |
729 | }\r | |
730 | \r | |
731 | STATIC\r | |
732 | EFI_STATUS\r | |
733 | MmuOperation (\r | |
734 | IN LAN91X_DRIVER *LanDriver,\r | |
735 | IN UINTN MmuOp\r | |
736 | )\r | |
737 | {\r | |
738 | UINTN Polls;\r | |
739 | \r | |
740 | WriteIoReg16 (LanDriver, LAN91X_MMUCR, MmuOp);\r | |
741 | Polls = 100;\r | |
742 | while ((ReadIoReg16 (LanDriver, LAN91X_MMUCR) & MMUCR_BUSY) != 0) {\r | |
743 | if (--Polls == 0) {\r | |
744 | DEBUG ((DEBUG_ERROR, "LAN91x: MMU operation %04x timed-out\n", MmuOp));\r | |
745 | return EFI_TIMEOUT;\r | |
746 | }\r | |
747 | gBS->Stall (LAN91X_STALL);\r | |
748 | }\r | |
749 | \r | |
750 | return EFI_SUCCESS;\r | |
751 | }\r | |
752 | \r | |
753 | // Read bytes from the DATA register\r | |
754 | STATIC\r | |
755 | EFI_STATUS\r | |
756 | ReadIoData (\r | |
757 | IN LAN91X_DRIVER *LanDriver,\r | |
758 | IN VOID *Buffer,\r | |
759 | IN UINTN BufLen\r | |
760 | )\r | |
761 | {\r | |
762 | UINT8 *Ptr;\r | |
763 | \r | |
764 | Ptr = Buffer;\r | |
765 | for (; BufLen > 0; --BufLen) {\r | |
766 | *Ptr = ReadIoReg8 (LanDriver, LAN91X_DATA0);\r | |
767 | ++Ptr;\r | |
768 | }\r | |
769 | \r | |
770 | return EFI_SUCCESS;\r | |
771 | }\r | |
772 | \r | |
773 | // Write bytes to the DATA register\r | |
774 | STATIC\r | |
775 | EFI_STATUS\r | |
776 | WriteIoData (\r | |
777 | IN LAN91X_DRIVER *LanDriver,\r | |
778 | IN VOID *Buffer,\r | |
779 | IN UINTN BufLen\r | |
780 | )\r | |
781 | {\r | |
782 | UINT8 *Ptr;\r | |
783 | \r | |
784 | Ptr = Buffer;\r | |
785 | for (; BufLen > 0; --BufLen) {\r | |
786 | WriteIoReg8 (LanDriver, LAN91X_DATA0, *Ptr);\r | |
787 | ++Ptr;\r | |
788 | }\r | |
789 | \r | |
790 | return EFI_SUCCESS;\r | |
791 | }\r | |
792 | \r | |
793 | // Disable the interface\r | |
794 | STATIC\r | |
795 | EFI_STATUS\r | |
796 | ChipDisable (\r | |
797 | IN LAN91X_DRIVER *LanDriver\r | |
798 | )\r | |
799 | {\r | |
800 | #ifdef LAN91X_POWER_DOWN\r | |
801 | UINT16 Val16;\r | |
802 | #endif\r | |
803 | \r | |
804 | // Stop Rx and Tx operations\r | |
805 | WriteIoReg16 (LanDriver, LAN91X_RCR, RCR_CLEAR);\r | |
806 | WriteIoReg16 (LanDriver, LAN91X_TCR, TCR_CLEAR);\r | |
807 | \r | |
808 | #ifdef LAN91X_POWER_DOWN\r | |
809 | // Power-down the chip\r | |
810 | Val16 = ReadIoReg16 (LanDriver, LAN91X_CR);\r | |
811 | Val16 &= ~CR_EPH_POWER_EN;\r | |
812 | WriteIoReg16 (LanDriver, LAN91X_CR, Val16);\r | |
813 | #endif\r | |
814 | \r | |
815 | return EFI_SUCCESS;\r | |
816 | }\r | |
817 | \r | |
818 | // Enable the interface\r | |
819 | STATIC\r | |
820 | EFI_STATUS\r | |
821 | ChipEnable (\r | |
822 | IN LAN91X_DRIVER *LanDriver\r | |
823 | )\r | |
824 | {\r | |
825 | #ifdef LAN91X_POWER_DOWN\r | |
826 | UINT16 Val16;\r | |
827 | \r | |
828 | // Power-up the chip\r | |
829 | Val16 = ReadIoReg16 (LanDriver, LAN91X_CR);\r | |
830 | Val16 |= CR_EPH_POWER_EN;\r | |
831 | WriteIoReg16 (LanDriver, LAN91X_CR, Val16);\r | |
832 | gBS->Stall (LAN91X_STALL);\r | |
833 | #endif\r | |
834 | \r | |
835 | // Start Rx and Tx operations\r | |
836 | WriteIoReg16 (LanDriver, LAN91X_TCR, TCR_DEFAULT);\r | |
837 | WriteIoReg16 (LanDriver, LAN91X_RCR, RCR_DEFAULT);\r | |
838 | \r | |
839 | return EFI_SUCCESS;\r | |
840 | }\r | |
841 | \r | |
842 | \r | |
843 | // Perform software reset on the LAN91x\r | |
844 | STATIC\r | |
845 | EFI_STATUS\r | |
846 | SoftReset (\r | |
847 | IN LAN91X_DRIVER *LanDriver\r | |
848 | )\r | |
849 | {\r | |
850 | UINT16 Val16;\r | |
851 | \r | |
852 | // Issue the reset\r | |
853 | WriteIoReg16 (LanDriver, LAN91X_RCR, RCR_SOFT_RST);\r | |
854 | gBS->Stall (LAN91X_STALL);\r | |
855 | WriteIoReg16 (LanDriver, LAN91X_RCR, RCR_CLEAR);\r | |
856 | \r | |
857 | // Set the configuration register\r | |
858 | WriteIoReg16 (LanDriver, LAN91X_CR, CR_DEFAULT);\r | |
859 | gBS->Stall (LAN91X_STALL);\r | |
860 | \r | |
861 | // Stop Rx and Tx\r | |
862 | WriteIoReg16 (LanDriver, LAN91X_RCR, RCR_CLEAR);\r | |
863 | WriteIoReg16 (LanDriver, LAN91X_TCR, TCR_CLEAR);\r | |
864 | \r | |
865 | // Initialize the Control Register\r | |
866 | Val16 = ReadIoReg16 (LanDriver, LAN91X_CTR);\r | |
867 | Val16 |= CTR_AUTO_REL;\r | |
868 | WriteIoReg16 (LanDriver, LAN91X_CTR, Val16);\r | |
869 | \r | |
870 | // Reset the MMU\r | |
871 | MmuOperation (LanDriver, MMUCR_OP_RESET_MMU);\r | |
872 | \r | |
873 | return EFI_SUCCESS;\r | |
874 | }\r | |
875 | \r | |
876 | /*\r | |
877 | ** Probe()\r | |
878 | **\r | |
879 | ** Validate that there is a LAN91x device.\r | |
880 | **\r | |
881 | */\r | |
882 | STATIC\r | |
883 | EFI_STATUS\r | |
884 | Probe (\r | |
885 | IN LAN91X_DRIVER *LanDriver\r | |
886 | )\r | |
887 | {\r | |
888 | UINT16 Bank;\r | |
889 | UINT16 Val16;\r | |
890 | CHAR16 CONST *ChipId;\r | |
891 | UINTN ResetTime;\r | |
892 | \r | |
893 | // First check that the Bank Select register is valid\r | |
894 | Bank = MmioRead16 (LanDriver->IoBase + LAN91X_BANK_OFFSET);\r | |
895 | if ((Bank & 0xff00) != 0x3300) {\r | |
896 | DEBUG ((DEBUG_ERROR, "LAN91x: signature error: expecting 33xx, read %04x\n", Bank));\r | |
897 | return EFI_DEVICE_ERROR;\r | |
898 | }\r | |
899 | \r | |
900 | // Try reading the revision register next\r | |
901 | LanDriver->BankSel = 0xff;\r | |
902 | Val16 = ReadIoReg16 (LanDriver, LAN91X_REV);\r | |
903 | \r | |
904 | Bank = MmioRead16 (LanDriver->IoBase + LAN91X_BANK_OFFSET);\r | |
905 | if ((Bank & 0xff03) != 0x3303) {\r | |
906 | DEBUG ((DEBUG_ERROR, "LAN91x: signature error: expecting 33x3, read %04x\n", Bank));\r | |
907 | return EFI_DEVICE_ERROR;\r | |
908 | }\r | |
909 | \r | |
910 | // Validate the revision register\r | |
911 | if ((Val16 & 0xff00) != 0x3300) {\r | |
912 | DEBUG ((DEBUG_ERROR, "LAN91x: revision error: expecting 33xx, read %04x\n", Val16));\r | |
913 | return EFI_DEVICE_ERROR;\r | |
914 | }\r | |
915 | \r | |
916 | ChipId = ChipIds[(Val16 >> 4) & 0x0f];\r | |
917 | if (ChipId == NULL) {\r | |
918 | DEBUG ((DEBUG_ERROR, "LAN91x: unrecognized revision: %04x\n", Val16));\r | |
919 | return EFI_DEVICE_ERROR;\r | |
920 | }\r | |
921 | DEBUG ((DEBUG_ERROR, "LAN91x: detected chip %s rev %d\n", ChipId, Val16 & 0xf));\r | |
922 | LanDriver->Revision = Val16 & 0xff;\r | |
923 | \r | |
924 | // Reload from EEPROM to get the hardware MAC address\r | |
925 | WriteIoReg16 (LanDriver, LAN91X_CTR, CTR_RESERVED | CTR_RELOAD);\r | |
926 | ResetTime = 1000;\r | |
927 | while ((ReadIoReg16 (LanDriver, LAN91X_CTR) & CTR_RELOAD) != 0) {\r | |
928 | if (--ResetTime == 0) {\r | |
929 | DEBUG ((DEBUG_ERROR, "LAN91x: reload from EEPROM timed-out\n"));\r | |
930 | WriteIoReg16 (LanDriver, LAN91X_CTR, CTR_RESERVED);\r | |
931 | return EFI_DEVICE_ERROR;\r | |
932 | }\r | |
933 | gBS->Stall (LAN91X_STALL);\r | |
934 | }\r | |
935 | \r | |
936 | // Read and save the Permanent MAC Address\r | |
937 | LanDriver->SnpMode.PermanentAddress = GetCurrentMacAddress (LanDriver);\r | |
938 | LanDriver->SnpMode.CurrentAddress = LanDriver->SnpMode.PermanentAddress;\r | |
939 | DEBUG ((DEBUG_ERROR, //DEBUG_NET | DEBUG_INFO,\r | |
940 | "LAN91x: HW MAC Address: %02x-%02x-%02x-%02x-%02x-%02x\n",\r | |
941 | LanDriver->SnpMode.PermanentAddress.Addr[0],\r | |
942 | LanDriver->SnpMode.PermanentAddress.Addr[1],\r | |
943 | LanDriver->SnpMode.PermanentAddress.Addr[2],\r | |
944 | LanDriver->SnpMode.PermanentAddress.Addr[3],\r | |
945 | LanDriver->SnpMode.PermanentAddress.Addr[4],\r | |
946 | LanDriver->SnpMode.PermanentAddress.Addr[5]\r | |
947 | ));\r | |
948 | \r | |
949 | // Reset the device\r | |
950 | SoftReset (LanDriver);\r | |
951 | \r | |
952 | // Try to detect a PHY\r | |
953 | if (LanDriver->Revision > (CHIP_91100 << 4)) {\r | |
954 | PhyDetect (LanDriver);\r | |
955 | } else {\r | |
956 | LanDriver->PhyAd = LAN91X_NO_PHY;\r | |
957 | }\r | |
958 | \r | |
959 | return EFI_SUCCESS;\r | |
960 | }\r | |
961 | \r | |
962 | \r | |
963 | \r | |
964 | \r | |
965 | /*------------------ Simple Network Driver entry point functions ------------------*/\r | |
966 | \r | |
967 | // Refer to the Simple Network Protocol section (21.1)\r | |
968 | // in the UEFI 2.3.1 Specification for documentation.\r | |
969 | \r | |
970 | #define ReturnUnlock(s) do { Status = (s); goto exit_unlock; } while(0)\r | |
971 | \r | |
972 | \r | |
973 | /*\r | |
974 | ** UEFI Start() function\r | |
975 | **\r | |
976 | */\r | |
977 | EFI_STATUS\r | |
978 | EFIAPI\r | |
979 | SnpStart (\r | |
980 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp\r | |
981 | )\r | |
982 | {\r | |
983 | EFI_SIMPLE_NETWORK_MODE *Mode;\r | |
984 | EFI_TPL SavedTpl;\r | |
985 | EFI_STATUS Status;\r | |
986 | \r | |
987 | // Check Snp instance\r | |
988 | if (Snp == NULL) {\r | |
989 | return EFI_INVALID_PARAMETER;\r | |
990 | }\r | |
991 | \r | |
992 | // Serialize access to data and registers\r | |
993 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
994 | Mode = Snp->Mode;\r | |
995 | \r | |
996 | // Check state of the driver\r | |
997 | switch (Mode->State) {\r | |
998 | case EfiSimpleNetworkStopped:\r | |
999 | break;\r | |
1000 | case EfiSimpleNetworkStarted:\r | |
1001 | case EfiSimpleNetworkInitialized:\r | |
1002 | DEBUG ((DEBUG_WARN, "LAN91x: Driver already started\n"));\r | |
1003 | ReturnUnlock (EFI_ALREADY_STARTED);\r | |
1004 | default:\r | |
1005 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1006 | (UINTN)Snp->Mode->State));\r | |
1007 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1008 | }\r | |
1009 | \r | |
1010 | \r | |
1011 | // Change state\r | |
1012 | Mode->State = EfiSimpleNetworkStarted;\r | |
1013 | Status = EFI_SUCCESS;\r | |
1014 | \r | |
1015 | // Restore TPL and return\r | |
1016 | exit_unlock:\r | |
1017 | gBS->RestoreTPL (SavedTpl);\r | |
1018 | return Status;\r | |
1019 | }\r | |
1020 | \r | |
1021 | /*\r | |
1022 | ** UEFI Stop() function\r | |
1023 | **\r | |
1024 | */\r | |
1025 | EFI_STATUS\r | |
1026 | EFIAPI\r | |
1027 | SnpStop (\r | |
1028 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp\r | |
1029 | )\r | |
1030 | {\r | |
1031 | LAN91X_DRIVER *LanDriver;\r | |
1032 | EFI_TPL SavedTpl;\r | |
1033 | EFI_STATUS Status;\r | |
1034 | \r | |
1035 | // Check Snp Instance\r | |
1036 | if (Snp == NULL) {\r | |
1037 | return EFI_INVALID_PARAMETER;\r | |
1038 | }\r | |
1039 | \r | |
1040 | // Serialize access to data and registers\r | |
1041 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
1042 | \r | |
1043 | // Check state of the driver\r | |
1044 | switch (Snp->Mode->State) {\r | |
1045 | case EfiSimpleNetworkStarted:\r | |
1046 | case EfiSimpleNetworkInitialized:\r | |
1047 | break;\r | |
1048 | case EfiSimpleNetworkStopped:\r | |
1049 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not started\n"));\r | |
1050 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1051 | default:\r | |
1052 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1053 | (UINTN)Snp->Mode->State));\r | |
1054 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1055 | }\r | |
1056 | \r | |
1057 | // Find the LanDriver structure\r | |
1058 | LanDriver = INSTANCE_FROM_SNP_THIS(Snp);\r | |
1059 | \r | |
1060 | // Stop the Tx and Rx\r | |
1061 | ChipDisable (LanDriver);\r | |
1062 | \r | |
1063 | // Change the state\r | |
1064 | Snp->Mode->State = EfiSimpleNetworkStopped;\r | |
1065 | Status = EFI_SUCCESS;\r | |
1066 | \r | |
1067 | // Restore TPL and return\r | |
1068 | exit_unlock:\r | |
1069 | gBS->RestoreTPL (SavedTpl);\r | |
1070 | return Status;\r | |
1071 | }\r | |
1072 | \r | |
1073 | /*\r | |
1074 | ** UEFI Initialize() function\r | |
1075 | **\r | |
1076 | */\r | |
1077 | EFI_STATUS\r | |
1078 | EFIAPI\r | |
1079 | SnpInitialize (\r | |
1080 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
1081 | IN UINTN RxBufferSize OPTIONAL,\r | |
1082 | IN UINTN TxBufferSize OPTIONAL\r | |
1083 | )\r | |
1084 | {\r | |
1085 | LAN91X_DRIVER *LanDriver;\r | |
1086 | EFI_TPL SavedTpl;\r | |
1087 | EFI_STATUS Status;\r | |
1088 | \r | |
1089 | // Check Snp Instance\r | |
1090 | if (Snp == NULL) {\r | |
1091 | return EFI_INVALID_PARAMETER;\r | |
1092 | }\r | |
1093 | \r | |
1094 | // Serialize access to data and registers\r | |
1095 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
1096 | \r | |
1097 | // Check that driver was started but not initialised\r | |
1098 | switch (Snp->Mode->State) {\r | |
1099 | case EfiSimpleNetworkStarted:\r | |
1100 | break;\r | |
1101 | case EfiSimpleNetworkInitialized:\r | |
1102 | DEBUG ((DEBUG_WARN, "LAN91x: Driver already initialized\n"));\r | |
1103 | ReturnUnlock (EFI_SUCCESS);\r | |
1104 | case EfiSimpleNetworkStopped:\r | |
1105 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not started\n"));\r | |
1106 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1107 | default:\r | |
1108 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1109 | (UINTN)Snp->Mode->State));\r | |
1110 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1111 | }\r | |
1112 | \r | |
1113 | // Find the LanDriver structure\r | |
1114 | LanDriver = INSTANCE_FROM_SNP_THIS(Snp);\r | |
1115 | \r | |
1116 | // Initiate a software reset\r | |
1117 | Status = SoftReset (LanDriver);\r | |
1118 | if (EFI_ERROR(Status)) {\r | |
1119 | DEBUG ((DEBUG_WARN, "LAN91x: Soft reset failed\n"));\r | |
1120 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1121 | }\r | |
1122 | \r | |
1123 | // Initiate a PHY reset\r | |
1124 | if (PhySoftReset (LanDriver) < 0) {\r | |
1125 | Snp->Mode->State = EfiSimpleNetworkStopped;\r | |
1126 | DEBUG ((DEBUG_WARN, "LAN91x: PHY soft reset timeout\n"));\r | |
1127 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1128 | }\r | |
1129 | \r | |
1130 | // Do auto-negotiation\r | |
1131 | Status = PhyAutoNegotiate (LanDriver);\r | |
1132 | if (EFI_ERROR(Status)) {\r | |
1133 | DEBUG ((DEBUG_WARN, "LAN91x: PHY auto-negotiation failed\n"));\r | |
1134 | }\r | |
1135 | \r | |
1136 | // Enable the receiver and transmitter\r | |
1137 | ChipEnable (LanDriver);\r | |
1138 | \r | |
1139 | // Now acknowledge all interrupts\r | |
1140 | WriteIoReg8 (LanDriver, LAN91X_IST, 0xFF);\r | |
1141 | \r | |
1142 | // Declare the driver as initialized\r | |
1143 | Snp->Mode->State = EfiSimpleNetworkInitialized;\r | |
1144 | Status = EFI_SUCCESS;\r | |
1145 | \r | |
1146 | // Restore TPL and return\r | |
1147 | exit_unlock:\r | |
1148 | gBS->RestoreTPL (SavedTpl);\r | |
1149 | return Status;\r | |
1150 | }\r | |
1151 | \r | |
1152 | /*\r | |
1153 | ** UEFI Reset () function\r | |
1154 | **\r | |
1155 | */\r | |
1156 | EFI_STATUS\r | |
1157 | EFIAPI\r | |
1158 | SnpReset (\r | |
1159 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
1160 | IN BOOLEAN Verification\r | |
1161 | )\r | |
1162 | {\r | |
1163 | LAN91X_DRIVER *LanDriver;\r | |
1164 | EFI_TPL SavedTpl;\r | |
1165 | EFI_STATUS Status;\r | |
1166 | \r | |
1167 | // Check Snp Instance\r | |
1168 | if (Snp == NULL) {\r | |
1169 | return EFI_INVALID_PARAMETER;\r | |
1170 | }\r | |
1171 | \r | |
1172 | // Serialize access to data and registers\r | |
1173 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
1174 | \r | |
1175 | // Check that driver was started and initialised\r | |
1176 | switch (Snp->Mode->State) {\r | |
1177 | case EfiSimpleNetworkInitialized:\r | |
1178 | break;\r | |
1179 | case EfiSimpleNetworkStarted:\r | |
1180 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not yet initialized\n"));\r | |
1181 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1182 | case EfiSimpleNetworkStopped:\r | |
1183 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not started\n"));\r | |
1184 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1185 | default:\r | |
1186 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1187 | (UINTN)Snp->Mode->State));\r | |
1188 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1189 | }\r | |
1190 | \r | |
1191 | // Find the LanDriver structure\r | |
1192 | LanDriver = INSTANCE_FROM_SNP_THIS(Snp);\r | |
1193 | \r | |
1194 | // Initiate a software reset\r | |
1195 | if (EFI_ERROR (SoftReset (LanDriver))) {\r | |
1196 | DEBUG ((DEBUG_WARN, "LAN91x: Soft reset failed\n"));\r | |
1197 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1198 | }\r | |
1199 | \r | |
1200 | // Initiate a PHY reset\r | |
1201 | if (EFI_ERROR (PhySoftReset (LanDriver))) {\r | |
1202 | DEBUG ((DEBUG_WARN, "LAN91x: PHY soft reset failed\n"));\r | |
1203 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1204 | }\r | |
1205 | \r | |
1206 | // Enable the receiver and transmitter\r | |
1207 | Status = ChipEnable (LanDriver);\r | |
1208 | \r | |
1209 | // Restore TPL and return\r | |
1210 | exit_unlock:\r | |
1211 | gBS->RestoreTPL (SavedTpl);\r | |
1212 | return Status;\r | |
1213 | }\r | |
1214 | \r | |
1215 | /*\r | |
1216 | ** UEFI Shutdown () function\r | |
1217 | **\r | |
1218 | */\r | |
1219 | EFI_STATUS\r | |
1220 | EFIAPI\r | |
1221 | SnpShutdown (\r | |
1222 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp\r | |
1223 | )\r | |
1224 | {\r | |
1225 | LAN91X_DRIVER *LanDriver;\r | |
1226 | EFI_TPL SavedTpl;\r | |
1227 | EFI_STATUS Status;\r | |
1228 | \r | |
1229 | // Check Snp Instance\r | |
1230 | if (Snp == NULL) {\r | |
1231 | return EFI_INVALID_PARAMETER;\r | |
1232 | }\r | |
1233 | \r | |
1234 | // Serialize access to data and registers\r | |
1235 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
1236 | \r | |
1237 | // First check that driver has already been initialized\r | |
1238 | switch (Snp->Mode->State) {\r | |
1239 | case EfiSimpleNetworkInitialized:\r | |
1240 | break;\r | |
1241 | case EfiSimpleNetworkStarted:\r | |
1242 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not yet initialized\n"));\r | |
1243 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1244 | case EfiSimpleNetworkStopped:\r | |
1245 | DEBUG ((DEBUG_WARN, "LAN91x: Driver in stopped state\n"));\r | |
1246 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1247 | default:\r | |
1248 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1249 | (UINTN)Snp->Mode->State));\r | |
1250 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1251 | }\r | |
1252 | \r | |
1253 | // Find the LanDriver structure\r | |
1254 | LanDriver = INSTANCE_FROM_SNP_THIS(Snp);\r | |
1255 | \r | |
1256 | // Disable the interface\r | |
1257 | Status = ChipDisable (LanDriver);\r | |
1258 | \r | |
1259 | // Restore TPL and return\r | |
1260 | exit_unlock:\r | |
1261 | gBS->RestoreTPL (SavedTpl);\r | |
1262 | return Status;\r | |
1263 | }\r | |
1264 | \r | |
1265 | \r | |
1266 | /*\r | |
1267 | ** UEFI ReceiveFilters() function\r | |
1268 | **\r | |
1269 | */\r | |
1270 | EFI_STATUS\r | |
1271 | EFIAPI\r | |
1272 | SnpReceiveFilters (\r | |
1273 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
1274 | IN UINT32 Enable,\r | |
1275 | IN UINT32 Disable,\r | |
1276 | IN BOOLEAN Reset,\r | |
1277 | IN UINTN NumMfilter OPTIONAL,\r | |
1278 | IN EFI_MAC_ADDRESS *Mfilter OPTIONAL\r | |
1279 | )\r | |
1280 | {\r | |
1281 | #define MCAST_HASH_BYTES 8\r | |
1282 | \r | |
1283 | LAN91X_DRIVER *LanDriver;\r | |
1284 | EFI_SIMPLE_NETWORK_MODE *SnpMode;\r | |
1285 | EFI_TPL SavedTpl;\r | |
1286 | EFI_STATUS Status;\r | |
1287 | UINTN i;\r | |
1288 | UINT32 Crc;\r | |
1289 | UINT16 RcvCtrl;\r | |
1290 | UINT8 McastHash[MCAST_HASH_BYTES];\r | |
1291 | \r | |
1292 | // Check Snp Instance\r | |
1293 | if (Snp == NULL) {\r | |
1294 | return EFI_INVALID_PARAMETER;\r | |
1295 | }\r | |
1296 | \r | |
1297 | // Serialize access to data and registers\r | |
1298 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
1299 | \r | |
1300 | // First check that driver has already been initialized\r | |
1301 | switch (Snp->Mode->State) {\r | |
1302 | case EfiSimpleNetworkInitialized:\r | |
1303 | break;\r | |
1304 | case EfiSimpleNetworkStarted:\r | |
1305 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not yet initialized\n"));\r | |
1306 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1307 | case EfiSimpleNetworkStopped:\r | |
1308 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not started\n"));\r | |
1309 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1310 | default:\r | |
1311 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1312 | (UINTN)Snp->Mode->State));\r | |
1313 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1314 | }\r | |
1315 | \r | |
1316 | // Find the LanDriver structure\r | |
1317 | LanDriver = INSTANCE_FROM_SNP_THIS(Snp);\r | |
1318 | SnpMode = Snp->Mode;\r | |
1319 | \r | |
1320 | #ifdef LAN91X_PRINT_RECEIVE_FILTERS\r | |
1321 | DEBUG ((DEBUG_ERROR, "LAN91x:SnpReceiveFilters()\n"));\r | |
1322 | DEBUG ((DEBUG_ERROR, " Enable = %08x\n", Enable));\r | |
1323 | DEBUG ((DEBUG_ERROR, " Disable = %08x\n", Disable));\r | |
1324 | DEBUG ((DEBUG_ERROR, " Reset = %d\n", Reset));\r | |
1325 | DEBUG ((DEBUG_ERROR, " NumMfilter = %d\n", NumMfilter));\r | |
1326 | for (i = 0; i < NumMfilter; ++i) {\r | |
1327 | DEBUG ((DEBUG_ERROR,\r | |
1328 | " [%2d] = %02x-%02x-%02x-%02x-%02x-%02x\n",\r | |
1329 | i,\r | |
1330 | Mfilter[i].Addr[0],\r | |
1331 | Mfilter[i].Addr[1],\r | |
1332 | Mfilter[i].Addr[2],\r | |
1333 | Mfilter[i].Addr[3],\r | |
1334 | Mfilter[i].Addr[4],\r | |
1335 | Mfilter[i].Addr[5]));\r | |
1336 | }\r | |
1337 | #endif\r | |
1338 | \r | |
1339 | // Update the Multicast Hash registers\r | |
1340 | if (Reset) {\r | |
1341 | // Clear the hash table\r | |
1342 | SetMem (McastHash, MCAST_HASH_BYTES, 0);\r | |
1343 | SnpMode->MCastFilterCount = 0;\r | |
1344 | } else {\r | |
1345 | // Read the current hash table\r | |
1346 | for (i = 0; i < MCAST_HASH_BYTES; ++i) {\r | |
1347 | McastHash[i] = ReadIoReg8 (LanDriver, LAN91X_MT0 + i);\r | |
1348 | }\r | |
1349 | // Set the new additions\r | |
1350 | for (i = 0; i < NumMfilter; ++i) {\r | |
1351 | Crc = MulticastHash (&Mfilter[i], NET_ETHER_ADDR_LEN);\r | |
1352 | McastHash[(Crc >> 29) & 0x3] |= 1 << ((Crc >> 26) & 0x3);\r | |
1353 | }\r | |
1354 | SnpMode->MCastFilterCount = NumMfilter;\r | |
1355 | }\r | |
1356 | // If the hash registers need updating, write them\r | |
1357 | if (Reset || NumMfilter > 0) {\r | |
1358 | for (i = 0; i < MCAST_HASH_BYTES; ++i) {\r | |
1359 | WriteIoReg8 (LanDriver, LAN91X_MT0 + i, McastHash[i]);\r | |
1360 | }\r | |
1361 | }\r | |
1362 | \r | |
1363 | RcvCtrl = ReadIoReg16 (LanDriver, LAN91X_RCR);\r | |
1364 | if ((Enable & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS) != 0) {\r | |
1365 | RcvCtrl |= RCR_PRMS;\r | |
1366 | SnpMode->ReceiveFilterSetting |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS;\r | |
1367 | }\r | |
1368 | if ((Disable & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS) != 0) {\r | |
1369 | RcvCtrl &= ~RCR_PRMS;\r | |
1370 | SnpMode->ReceiveFilterSetting &= ~EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS;\r | |
1371 | }\r | |
1372 | \r | |
1373 | if ((Enable & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST) != 0) {\r | |
1374 | RcvCtrl |= RCR_ALMUL;\r | |
1375 | SnpMode->ReceiveFilterSetting |= EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;\r | |
1376 | }\r | |
1377 | if ((Disable & EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST) != 0) {\r | |
1378 | RcvCtrl &= ~RCR_ALMUL;\r | |
1379 | SnpMode->ReceiveFilterSetting &= ~EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;\r | |
1380 | }\r | |
1381 | WriteIoReg16 (LanDriver, LAN91X_RCR, RcvCtrl);\r | |
1382 | \r | |
1383 | Status = SetCurrentMacAddress (LanDriver, &SnpMode->CurrentAddress);\r | |
1384 | \r | |
1385 | // Restore TPL and return\r | |
1386 | exit_unlock:\r | |
1387 | gBS->RestoreTPL (SavedTpl);\r | |
1388 | return Status;\r | |
1389 | }\r | |
1390 | \r | |
1391 | /*\r | |
1392 | ** UEFI StationAddress() function\r | |
1393 | **\r | |
1394 | */\r | |
1395 | EFI_STATUS\r | |
1396 | EFIAPI\r | |
1397 | SnpStationAddress (\r | |
1398 | IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,\r | |
1399 | IN BOOLEAN Reset,\r | |
1400 | IN EFI_MAC_ADDRESS *NewMac\r | |
1401 | )\r | |
1402 | {\r | |
1403 | LAN91X_DRIVER *LanDriver;\r | |
1404 | EFI_TPL SavedTpl;\r | |
1405 | EFI_STATUS Status;\r | |
1406 | \r | |
1407 | // Check Snp instance\r | |
1408 | if (Snp == NULL) {\r | |
1409 | return EFI_INVALID_PARAMETER;\r | |
1410 | }\r | |
1411 | \r | |
1412 | // Serialize access to data and registers\r | |
1413 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
1414 | \r | |
1415 | // Check that driver was started and initialised\r | |
1416 | switch (Snp->Mode->State) {\r | |
1417 | case EfiSimpleNetworkInitialized:\r | |
1418 | break;\r | |
1419 | case EfiSimpleNetworkStarted:\r | |
1420 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not yet initialized\n"));\r | |
1421 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1422 | case EfiSimpleNetworkStopped:\r | |
1423 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not started\n"));\r | |
1424 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1425 | default:\r | |
1426 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1427 | (UINTN)Snp->Mode->State));\r | |
1428 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1429 | }\r | |
1430 | \r | |
1431 | // Find the LanDriver structure\r | |
1432 | LanDriver = INSTANCE_FROM_SNP_THIS(Snp);\r | |
1433 | \r | |
1434 | if (Reset) {\r | |
1435 | Snp->Mode->CurrentAddress = Snp->Mode->PermanentAddress;\r | |
1436 | } else {\r | |
1437 | if (NewMac == NULL) {\r | |
1438 | ReturnUnlock (EFI_INVALID_PARAMETER);\r | |
1439 | }\r | |
1440 | Snp->Mode->CurrentAddress = *NewMac;\r | |
1441 | }\r | |
1442 | \r | |
1443 | Status = SetCurrentMacAddress (LanDriver, &Snp->Mode->CurrentAddress);\r | |
1444 | \r | |
1445 | // Restore TPL and return\r | |
1446 | exit_unlock:\r | |
1447 | gBS->RestoreTPL (SavedTpl);\r | |
1448 | return Status;\r | |
1449 | }\r | |
1450 | \r | |
1451 | /*\r | |
1452 | ** UEFI Statistics() function\r | |
1453 | **\r | |
1454 | */\r | |
1455 | EFI_STATUS\r | |
1456 | EFIAPI\r | |
1457 | SnpStatistics (\r | |
1458 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
1459 | IN BOOLEAN Reset,\r | |
1460 | IN OUT UINTN *StatSize,\r | |
1461 | OUT EFI_NETWORK_STATISTICS *Statistics\r | |
1462 | )\r | |
1463 | {\r | |
1464 | LAN91X_DRIVER *LanDriver;\r | |
1465 | EFI_TPL SavedTpl;\r | |
1466 | EFI_STATUS Status;\r | |
1467 | \r | |
1468 | // Check Snp instance\r | |
1469 | if (Snp == NULL) {\r | |
1470 | return EFI_INVALID_PARAMETER;\r | |
1471 | }\r | |
1472 | \r | |
1473 | // Check pointless condition\r | |
1474 | if ((!Reset) && (StatSize == NULL) && (Statistics == NULL)) {\r | |
1475 | return EFI_SUCCESS;\r | |
1476 | }\r | |
1477 | \r | |
1478 | // Check the parameters\r | |
1479 | if ((StatSize == NULL) && (Statistics != NULL)) {\r | |
1480 | return EFI_INVALID_PARAMETER;\r | |
1481 | }\r | |
1482 | \r | |
1483 | // Serialize access to data and registers\r | |
1484 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
1485 | \r | |
1486 | // Check that driver was started and initialised\r | |
1487 | switch (Snp->Mode->State) {\r | |
1488 | case EfiSimpleNetworkInitialized:\r | |
1489 | break;\r | |
1490 | case EfiSimpleNetworkStarted:\r | |
1491 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not yet initialized\n"));\r | |
1492 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1493 | case EfiSimpleNetworkStopped:\r | |
1494 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not started\n"));\r | |
1495 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1496 | default:\r | |
1497 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1498 | (UINTN)Snp->Mode->State));\r | |
1499 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1500 | }\r | |
1501 | \r | |
1502 | // Find the LanDriver structure\r | |
1503 | LanDriver = INSTANCE_FROM_SNP_THIS(Snp);\r | |
1504 | \r | |
1505 | // Do a reset if required\r | |
1506 | if (Reset) {\r | |
1507 | ZeroMem (&LanDriver->Stats, sizeof(EFI_NETWORK_STATISTICS));\r | |
1508 | }\r | |
1509 | \r | |
1510 | // Check buffer size\r | |
1511 | if (*StatSize < sizeof(EFI_NETWORK_STATISTICS)) {\r | |
1512 | *StatSize = sizeof(EFI_NETWORK_STATISTICS);\r | |
1513 | ReturnUnlock (EFI_BUFFER_TOO_SMALL);\r | |
1514 | goto exit_unlock;\r | |
1515 | }\r | |
1516 | \r | |
1517 | // Fill in the statistics\r | |
1518 | CopyMem(&Statistics, &LanDriver->Stats, sizeof(EFI_NETWORK_STATISTICS));\r | |
1519 | Status = EFI_SUCCESS;\r | |
1520 | \r | |
1521 | // Restore TPL and return\r | |
1522 | exit_unlock:\r | |
1523 | gBS->RestoreTPL (SavedTpl);\r | |
1524 | return Status;\r | |
1525 | }\r | |
1526 | \r | |
1527 | /*\r | |
1528 | ** UEFI MCastIPtoMAC() function\r | |
1529 | **\r | |
1530 | */\r | |
1531 | EFI_STATUS\r | |
1532 | EFIAPI\r | |
1533 | SnpMcastIptoMac (\r | |
1534 | IN EFI_SIMPLE_NETWORK_PROTOCOL* Snp,\r | |
1535 | IN BOOLEAN IsIpv6,\r | |
1536 | IN EFI_IP_ADDRESS *Ip,\r | |
1537 | OUT EFI_MAC_ADDRESS *McastMac\r | |
1538 | )\r | |
1539 | {\r | |
1540 | // Check Snp instance\r | |
1541 | if (Snp == NULL) {\r | |
1542 | return EFI_INVALID_PARAMETER;\r | |
1543 | }\r | |
1544 | \r | |
1545 | // Check parameters\r | |
1546 | if ((McastMac == NULL) || (Ip == NULL)) {\r | |
1547 | return EFI_INVALID_PARAMETER;\r | |
1548 | }\r | |
1549 | \r | |
1550 | // Make sure MAC address is empty\r | |
1551 | ZeroMem (McastMac, sizeof(EFI_MAC_ADDRESS));\r | |
1552 | \r | |
1553 | // If we need ipv4 address\r | |
1554 | if (!IsIpv6) {\r | |
1555 | // Most significant 25 bits of a multicast HW address are set\r | |
1556 | McastMac->Addr[0] = 0x01;\r | |
1557 | McastMac->Addr[1] = 0x00;\r | |
1558 | McastMac->Addr[2] = 0x5E;\r | |
1559 | \r | |
1560 | // Lower 23 bits from ipv4 address\r | |
1561 | McastMac->Addr[3] = (Ip->v4.Addr[1] & 0x7F); // Clear the ms bit (25th bit of MAC must be 0)\r | |
1562 | McastMac->Addr[4] = Ip->v4.Addr[2];\r | |
1563 | McastMac->Addr[5] = Ip->v4.Addr[3];\r | |
1564 | } else {\r | |
1565 | // Most significant 16 bits of multicast v6 HW address are set\r | |
1566 | McastMac->Addr[0] = 0x33;\r | |
1567 | McastMac->Addr[1] = 0x33;\r | |
1568 | \r | |
1569 | // lower four octets are taken from ipv6 address\r | |
1570 | McastMac->Addr[2] = Ip->v6.Addr[8];\r | |
1571 | McastMac->Addr[3] = Ip->v6.Addr[9];\r | |
1572 | McastMac->Addr[4] = Ip->v6.Addr[10];\r | |
1573 | McastMac->Addr[5] = Ip->v6.Addr[11];\r | |
1574 | }\r | |
1575 | \r | |
1576 | return EFI_SUCCESS;\r | |
1577 | }\r | |
1578 | \r | |
1579 | /*\r | |
1580 | ** UEFI NvData() function\r | |
1581 | **\r | |
1582 | */\r | |
1583 | EFI_STATUS\r | |
1584 | EFIAPI\r | |
1585 | SnpNvData (\r | |
1586 | IN EFI_SIMPLE_NETWORK_PROTOCOL* pobj,\r | |
1587 | IN BOOLEAN read_write,\r | |
1588 | IN UINTN offset,\r | |
1589 | IN UINTN buff_size,\r | |
1590 | IN OUT VOID *data\r | |
1591 | )\r | |
1592 | {\r | |
1593 | DEBUG ((DEBUG_ERROR, "LAN91x: Non-volatile storage not supported\n"));\r | |
1594 | \r | |
1595 | return EFI_UNSUPPORTED;\r | |
1596 | }\r | |
1597 | \r | |
1598 | \r | |
1599 | /*\r | |
1600 | ** UEFI GetStatus () function\r | |
1601 | **\r | |
1602 | */\r | |
1603 | EFI_STATUS\r | |
1604 | EFIAPI\r | |
1605 | SnpGetStatus (\r | |
1606 | IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,\r | |
1607 | OUT UINT32 *IrqStat OPTIONAL,\r | |
1608 | OUT VOID **TxBuff OPTIONAL\r | |
1609 | )\r | |
1610 | {\r | |
1611 | LAN91X_DRIVER *LanDriver;\r | |
1612 | EFI_TPL SavedTpl;\r | |
1613 | EFI_STATUS Status;\r | |
1614 | BOOLEAN MediaPresent;\r | |
1615 | UINT8 IstReg;\r | |
1616 | MSK_LINKED_SYSTEM_BUF *LinkedTXRecycleBuff;\r | |
1617 | \r | |
1618 | // Check preliminaries\r | |
1619 | if (Snp == NULL) {\r | |
1620 | return EFI_INVALID_PARAMETER;\r | |
1621 | }\r | |
1622 | \r | |
1623 | // Serialize access to data and registers\r | |
1624 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
1625 | \r | |
1626 | // Check that driver was started and initialised\r | |
1627 | switch (Snp->Mode->State) {\r | |
1628 | case EfiSimpleNetworkInitialized:\r | |
1629 | break;\r | |
1630 | case EfiSimpleNetworkStarted:\r | |
1631 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not yet initialized\n"));\r | |
1632 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1633 | case EfiSimpleNetworkStopped:\r | |
1634 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not started\n"));\r | |
1635 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1636 | default:\r | |
1637 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1638 | (UINTN)Snp->Mode->State));\r | |
1639 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1640 | }\r | |
1641 | \r | |
1642 | // Find the LanDriver structure\r | |
1643 | LanDriver = INSTANCE_FROM_SNP_THIS(Snp);\r | |
1644 | \r | |
1645 | // Arbitrarily set the interrupt status to 0\r | |
1646 | if (IrqStat != NULL) {\r | |
1647 | *IrqStat = 0;\r | |
1648 | IstReg = ReadIoReg8 (LanDriver, LAN91X_IST);\r | |
1649 | if ((IstReg & IST_RCV) != 0) {\r | |
1650 | *IrqStat |= EFI_SIMPLE_NETWORK_RECEIVE_INTERRUPT;\r | |
1651 | }\r | |
1652 | if ((IstReg & IST_TX) != 0) {\r | |
1653 | *IrqStat |= EFI_SIMPLE_NETWORK_TRANSMIT_INTERRUPT;\r | |
1654 | }\r | |
1655 | }\r | |
1656 | \r | |
1657 | // Pass back the completed buffer address\r | |
1658 | // The transmit buffer status is not read when TxBuf is NULL\r | |
1659 | if (TxBuff != NULL) {\r | |
1660 | *((UINT8 **) TxBuff) = (UINT8 *) 0;\r | |
1661 | if( !IsListEmpty (&LanDriver->TransmitQueueHead))\r | |
1662 | {\r | |
1663 | LinkedTXRecycleBuff = CR (GetFirstNode (&LanDriver->TransmitQueueHead), MSK_LINKED_SYSTEM_BUF, Link, TX_MBUF_SIGNATURE);\r | |
1664 | if(LinkedTXRecycleBuff != NULL) {\r | |
1665 | *TxBuff = LinkedTXRecycleBuff->SystemBuf.Buf;\r | |
1666 | RemoveEntryList (&LinkedTXRecycleBuff->Link);\r | |
1667 | FreePool (LinkedTXRecycleBuff);\r | |
1668 | }\r | |
1669 | }\r | |
1670 | }\r | |
1671 | \r | |
1672 | // Update the media status\r | |
1673 | MediaPresent = CheckLinkStatus (LanDriver);\r | |
1674 | if (MediaPresent != Snp->Mode->MediaPresent) {\r | |
1675 | DEBUG ((DEBUG_WARN, "LAN91x: Link %s\n", MediaPresent ? L"up" : L"down"));\r | |
1676 | }\r | |
1677 | Snp->Mode->MediaPresent = MediaPresent;\r | |
1678 | Status = EFI_SUCCESS;\r | |
1679 | \r | |
1680 | // Restore TPL and return\r | |
1681 | exit_unlock:\r | |
1682 | gBS->RestoreTPL (SavedTpl);\r | |
1683 | return Status;\r | |
1684 | }\r | |
1685 | \r | |
1686 | \r | |
1687 | /*\r | |
1688 | ** UEFI Transmit() function\r | |
1689 | **\r | |
1690 | */\r | |
1691 | EFI_STATUS\r | |
1692 | EFIAPI\r | |
1693 | SnpTransmit (\r | |
1694 | IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,\r | |
1695 | IN UINTN HdrSize,\r | |
1696 | IN UINTN BufSize,\r | |
1697 | IN VOID *BufAddr,\r | |
1698 | IN EFI_MAC_ADDRESS *SrcAddr OPTIONAL,\r | |
1699 | IN EFI_MAC_ADDRESS *DstAddr OPTIONAL,\r | |
1700 | IN UINT16 *Protocol OPTIONAL\r | |
1701 | )\r | |
1702 | {\r | |
1703 | LAN91X_DRIVER *LanDriver;\r | |
1704 | EFI_TPL SavedTpl;\r | |
1705 | EFI_STATUS Status;\r | |
1706 | UINT8 *Ptr;\r | |
1707 | UINTN Len;\r | |
1708 | UINTN MmuPages;\r | |
1709 | UINTN Retries;\r | |
1710 | UINT16 Proto;\r | |
1711 | UINT8 PktNum;\r | |
1712 | MSK_LINKED_SYSTEM_BUF *LinkedTXRecycleBuff;\r | |
1713 | \r | |
1714 | \r | |
1715 | // Check preliminaries\r | |
1716 | if ((Snp == NULL) || (BufAddr == NULL)) {\r | |
1717 | DEBUG ((DEBUG_ERROR, "LAN91x: SnpTransmit(): NULL Snp (%p) or BufAddr (%p)\n",\r | |
1718 | Snp, BufAddr));\r | |
1719 | return EFI_INVALID_PARAMETER;\r | |
1720 | }\r | |
1721 | \r | |
1722 | // Serialize access to data and registers\r | |
1723 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
1724 | \r | |
1725 | // Check that driver was started and initialised\r | |
1726 | switch (Snp->Mode->State) {\r | |
1727 | case EfiSimpleNetworkInitialized:\r | |
1728 | break;\r | |
1729 | case EfiSimpleNetworkStarted:\r | |
1730 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not yet initialized\n"));\r | |
1731 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1732 | case EfiSimpleNetworkStopped:\r | |
1733 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not started\n"));\r | |
1734 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1735 | default:\r | |
1736 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1737 | (UINTN)Snp->Mode->State));\r | |
1738 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1739 | }\r | |
1740 | \r | |
1741 | // Find the LanDriver structure\r | |
1742 | LanDriver = INSTANCE_FROM_SNP_THIS(Snp);\r | |
1743 | \r | |
1744 | // Ensure header is correct size if non-zero\r | |
1745 | if (HdrSize != 0) {\r | |
1746 | if (HdrSize != Snp->Mode->MediaHeaderSize) {\r | |
1747 | DEBUG ((DEBUG_ERROR, "LAN91x: SnpTransmit(): Invalid HdrSize %d\n", HdrSize));\r | |
1748 | ReturnUnlock (EFI_INVALID_PARAMETER);\r | |
1749 | }\r | |
1750 | \r | |
1751 | if ((DstAddr == NULL) || (Protocol == NULL)) {\r | |
1752 | DEBUG ((DEBUG_ERROR, "LAN91x: SnpTransmit(): NULL DstAddr %p or Protocol %p\n",\r | |
1753 | DstAddr, Protocol));\r | |
1754 | ReturnUnlock (EFI_INVALID_PARAMETER);\r | |
1755 | }\r | |
1756 | }\r | |
1757 | \r | |
1758 | // Before transmitting check the link status\r | |
1759 | if (!Snp->Mode->MediaPresent) {\r | |
1760 | DEBUG ((DEBUG_WARN, "LAN91x: SnpTransmit(): Link not ready\n"));\r | |
1761 | ReturnUnlock (EFI_NOT_READY);\r | |
1762 | }\r | |
1763 | \r | |
1764 | // Calculate the request size in 256-byte "pages" minus 1\r | |
1765 | // The 91C111 ignores this, but some older devices need it.\r | |
1766 | MmuPages = ((BufSize & ~1) + LAN91X_PKT_OVERHEAD - 1) >> 8;\r | |
1767 | if (MmuPages > 7) {\r | |
1768 | DEBUG ((DEBUG_WARN, "LAN91x: Tx buffer too large (%d bytes)\n", BufSize));\r | |
1769 | LanDriver->Stats.TxOversizeFrames += 1;\r | |
1770 | LanDriver->Stats.TxDroppedFrames += 1;\r | |
1771 | ReturnUnlock (EFI_BAD_BUFFER_SIZE);\r | |
1772 | }\r | |
1773 | \r | |
1774 | // Request allocation of a transmit buffer\r | |
1775 | Status = MmuOperation (LanDriver, MMUCR_OP_TX_ALLOC | MmuPages);\r | |
1776 | if (EFI_ERROR (Status)) {\r | |
1777 | DEBUG ((DEBUG_ERROR, "LAN91x: Tx buffer request failure: %d\n", Status));\r | |
1778 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1779 | }\r | |
1780 | \r | |
1781 | // Wait for allocation request completion\r | |
1782 | Retries = LAN91X_MEMORY_ALLOC_POLLS;\r | |
1783 | while ((ReadIoReg8 (LanDriver, LAN91X_IST) & IST_ALLOC) == 0) {\r | |
1784 | if (--Retries == 0) {\r | |
1785 | DEBUG ((DEBUG_ERROR, "LAN91x: Tx buffer allocation timeout\n"));\r | |
1786 | ReturnUnlock (EFI_TIMEOUT);\r | |
1787 | }\r | |
1788 | }\r | |
1789 | \r | |
1790 | // Check for successful allocation\r | |
1791 | PktNum = ReadIoReg8 (LanDriver, LAN91X_ARR);\r | |
1792 | if ((PktNum & ARR_FAILED) != 0) {\r | |
1793 | DEBUG ((DEBUG_ERROR, "LAN91x: Tx buffer allocation failure: %02x\n", PktNum));\r | |
1794 | ReturnUnlock (EFI_NOT_READY);\r | |
1795 | }\r | |
1796 | PktNum &= ARR_PACKET;\r | |
1797 | \r | |
1798 | // Check for the nature of the frame\r | |
1799 | // If no destination address, it's ARP broadcast\r | |
1800 | if(DstAddr != NULL)\r | |
1801 | {\r | |
1802 | if (DstAddr->Addr[0] == 0xFF) {\r | |
1803 | LanDriver->Stats.TxBroadcastFrames += 1;\r | |
1804 | } else if ((DstAddr->Addr[0] & 0x1) == 1) {\r | |
1805 | LanDriver->Stats.TxMulticastFrames += 1;\r | |
1806 | } else {\r | |
1807 | LanDriver->Stats.TxUnicastFrames += 1;\r | |
1808 | }\r | |
1809 | } else {\r | |
1810 | LanDriver->Stats.TxBroadcastFrames += 1;\r | |
1811 | }\r | |
1812 | \r | |
1813 | // Set the Packet Number and Pointer registers\r | |
1814 | WriteIoReg8 (LanDriver, LAN91X_PNR, PktNum);\r | |
1815 | WriteIoReg16 (LanDriver, LAN91X_PTR, PTR_AUTO_INCR);\r | |
1816 | \r | |
1817 | // Set up mutable buffer information variables\r | |
1818 | Ptr = BufAddr;\r | |
1819 | Len = BufSize;\r | |
1820 | \r | |
1821 | // Write Status and Byte Count first\r | |
1822 | WriteIoReg16 (LanDriver, LAN91X_DATA0, 0);\r | |
1823 | WriteIoReg16 (LanDriver, LAN91X_DATA0, (Len + LAN91X_PKT_OVERHEAD) & BCW_COUNT);\r | |
1824 | \r | |
1825 | // This packet may come with a preconfigured Ethernet header.\r | |
1826 | // If not, we need to construct one from optional parameters.\r | |
1827 | if (HdrSize) {\r | |
1828 | \r | |
1829 | // Write the destination address\r | |
1830 | WriteIoData (LanDriver, DstAddr, NET_ETHER_ADDR_LEN);\r | |
1831 | \r | |
1832 | // Write the Source Address\r | |
1833 | if (SrcAddr != NULL) {\r | |
1834 | WriteIoData (LanDriver, SrcAddr, NET_ETHER_ADDR_LEN);\r | |
1835 | } else {\r | |
1836 | WriteIoData (LanDriver, &LanDriver->SnpMode.CurrentAddress, NET_ETHER_ADDR_LEN);\r | |
1837 | }\r | |
1838 | \r | |
1839 | // Write the Protocol word\r | |
1840 | Proto = HTONS (*Protocol);\r | |
1841 | WriteIoReg16 (LanDriver, LAN91X_DATA0, Proto);\r | |
1842 | \r | |
1843 | // Adjust the data start and length\r | |
1844 | Ptr += sizeof(ETHER_HEAD);\r | |
1845 | Len -= sizeof(ETHER_HEAD);\r | |
1846 | }\r | |
1847 | \r | |
1848 | // Copy the remainder data buffer, except the odd byte\r | |
1849 | WriteIoData (LanDriver, Ptr, Len & ~1);\r | |
1850 | Ptr += Len & ~1;\r | |
1851 | Len &= 1;\r | |
1852 | \r | |
1853 | // Write the Packet Control Word and odd byte\r | |
1854 | WriteIoReg16 (LanDriver, LAN91X_DATA0,\r | |
1855 | (Len != 0) ? (PCW_ODD | PCW_CRC | *Ptr) : PCW_CRC);\r | |
1856 | \r | |
1857 | // Release the packet for transmission\r | |
1858 | Status = MmuOperation (LanDriver, MMUCR_OP_TX_PUSH);\r | |
1859 | if (EFI_ERROR (Status)) {\r | |
1860 | DEBUG ((DEBUG_ERROR, "LAN91x: Tx buffer release failure: %d\n", Status));\r | |
1861 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1862 | }\r | |
1863 | \r | |
1864 | // Update the Tx statistics\r | |
1865 | LanDriver->Stats.TxTotalBytes += BufSize;\r | |
1866 | LanDriver->Stats.TxGoodFrames += 1;\r | |
1867 | \r | |
1868 | // Update the Tx Buffer cache\r | |
1869 | LinkedTXRecycleBuff = AllocateZeroPool (sizeof (MSK_LINKED_SYSTEM_BUF));\r | |
1870 | if (LinkedTXRecycleBuff == NULL) {\r | |
1871 | return EFI_OUT_OF_RESOURCES;\r | |
1872 | }\r | |
1873 | LinkedTXRecycleBuff->Signature = TX_MBUF_SIGNATURE;\r | |
1874 | //\r | |
1875 | // Add the passed Buffer to the transmit queue. Don't copy.\r | |
1876 | //\r | |
1877 | LinkedTXRecycleBuff->SystemBuf.Buf = BufAddr;\r | |
1878 | LinkedTXRecycleBuff->SystemBuf.Length = BufSize;\r | |
1879 | InsertTailList (&LanDriver->TransmitQueueHead, &LinkedTXRecycleBuff->Link);\r | |
1880 | \r | |
1881 | Status = EFI_SUCCESS;\r | |
1882 | \r | |
1883 | // Dump the packet header\r | |
1884 | #if LAN91X_PRINT_PACKET_HEADERS\r | |
1885 | Ptr = BufAddr;\r | |
1886 | DEBUG ((DEBUG_ERROR, "LAN91X:SnpTransmit()\n"));\r | |
1887 | DEBUG ((DEBUG_ERROR, " HdrSize: %d, SrcAddr: %p, Length: %d, Last byte: %02x\n",\r | |
1888 | HdrSize, SrcAddr, BufSize, Ptr[BufSize - 1]));\r | |
1889 | PrintIpDgram (\r | |
1890 | (HdrSize == 0) ? (EFI_MAC_ADDRESS *)&Ptr[0] : DstAddr,\r | |
1891 | (HdrSize == 0) ? (EFI_MAC_ADDRESS *)&Ptr[6] : (SrcAddr != NULL) ? SrcAddr : &LanDriver->SnpMode.CurrentAddress,\r | |
1892 | (HdrSize == 0) ? (UINT16 *)&Ptr[12] : &Proto,\r | |
1893 | &Ptr[14]\r | |
1894 | );\r | |
1895 | #endif\r | |
1896 | \r | |
1897 | // Restore TPL and return\r | |
1898 | exit_unlock:\r | |
1899 | gBS->RestoreTPL (SavedTpl);\r | |
1900 | return Status;\r | |
1901 | }\r | |
1902 | \r | |
1903 | \r | |
1904 | /*\r | |
1905 | ** UEFI Receive() function\r | |
1906 | **\r | |
1907 | */\r | |
1908 | EFI_STATUS\r | |
1909 | EFIAPI\r | |
1910 | SnpReceive (\r | |
1911 | IN EFI_SIMPLE_NETWORK_PROTOCOL *Snp,\r | |
1912 | OUT UINTN *HdrSize OPTIONAL,\r | |
1913 | IN OUT UINTN *BuffSize,\r | |
1914 | OUT VOID *Data,\r | |
1915 | OUT EFI_MAC_ADDRESS *SrcAddr OPTIONAL,\r | |
1916 | OUT EFI_MAC_ADDRESS *DstAddr OPTIONAL,\r | |
1917 | OUT UINT16 *Protocol OPTIONAL\r | |
1918 | )\r | |
1919 | {\r | |
1920 | EFI_TPL SavedTpl;\r | |
1921 | EFI_STATUS Status;\r | |
1922 | LAN91X_DRIVER *LanDriver;\r | |
1923 | UINT8 *DataPtr;\r | |
1924 | UINT16 PktStatus;\r | |
1925 | UINT16 PktLength;\r | |
1926 | UINT16 PktControl;\r | |
1927 | UINT8 IstReg;\r | |
1928 | \r | |
1929 | // Check preliminaries\r | |
1930 | if ((Snp == NULL) || (Data == NULL)) {\r | |
1931 | return EFI_INVALID_PARAMETER;\r | |
1932 | }\r | |
1933 | \r | |
1934 | // Serialize access to data and registers\r | |
1935 | SavedTpl = gBS->RaiseTPL (LAN91X_TPL);\r | |
1936 | \r | |
1937 | // Check that driver was started and initialised\r | |
1938 | switch (Snp->Mode->State) {\r | |
1939 | case EfiSimpleNetworkInitialized:\r | |
1940 | break;\r | |
1941 | case EfiSimpleNetworkStarted:\r | |
1942 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not yet initialized\n"));\r | |
1943 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1944 | case EfiSimpleNetworkStopped:\r | |
1945 | DEBUG ((DEBUG_WARN, "LAN91x: Driver not started\n"));\r | |
1946 | ReturnUnlock (EFI_NOT_STARTED);\r | |
1947 | default:\r | |
1948 | DEBUG ((DEBUG_ERROR, "LAN91x: Driver in an invalid state: %u\n",\r | |
1949 | (UINTN)Snp->Mode->State));\r | |
1950 | ReturnUnlock (EFI_DEVICE_ERROR);\r | |
1951 | }\r | |
1952 | \r | |
1953 | // Find the LanDriver structure\r | |
1954 | LanDriver = INSTANCE_FROM_SNP_THIS(Snp);\r | |
1955 | \r | |
1956 | // Check for Rx Overrun\r | |
1957 | IstReg = ReadIoReg8 (LanDriver, LAN91X_IST);\r | |
1958 | if ((IstReg & IST_RX_OVRN) != 0) {\r | |
1959 | LanDriver->Stats.RxTotalFrames += 1;\r | |
1960 | LanDriver->Stats.RxDroppedFrames += 1;\r | |
1961 | WriteIoReg8 (LanDriver, LAN91X_IST, IST_RX_OVRN);\r | |
1962 | DEBUG ((DEBUG_WARN, "LAN91x: Receiver overrun\n"));\r | |
1963 | }\r | |
1964 | \r | |
1965 | // Check for Rx data available\r | |
1966 | if ((IstReg & IST_RCV) == 0) {\r | |
1967 | ReturnUnlock (EFI_NOT_READY);\r | |
1968 | }\r | |
1969 | \r | |
1970 | // Configure the PTR register for reading\r | |
1971 | WriteIoReg16 (LanDriver, LAN91X_PTR, PTR_RCV | PTR_AUTO_INCR | PTR_READ);\r | |
1972 | \r | |
1973 | // Read the Packet Status and Packet Length words\r | |
1974 | PktStatus = ReadIoReg16 (LanDriver, LAN91X_DATA0);\r | |
1975 | PktLength = ReadIoReg16 (LanDriver, LAN91X_DATA0) & BCW_COUNT;\r | |
1976 | \r | |
1977 | // Check for valid received packet\r | |
1978 | if ((PktStatus == 0) && (PktLength == 0)) {\r | |
1979 | DEBUG ((DEBUG_WARN, "LAN91x: Received zero-length packet. IST=%04x\n", IstReg));\r | |
1980 | ReturnUnlock (EFI_NOT_READY);\r | |
1981 | }\r | |
1982 | LanDriver->Stats.RxTotalFrames += 1;\r | |
1983 | \r | |
1984 | // Check if we got a CRC error\r | |
1985 | if ((PktStatus & RX_BAD_CRC) != 0) {\r | |
1986 | DEBUG ((DEBUG_WARN, "LAN91x: Received frame CRC error\n"));\r | |
1987 | LanDriver->Stats.RxCrcErrorFrames += 1;\r | |
1988 | LanDriver->Stats.RxDroppedFrames += 1;\r | |
1989 | Status = EFI_DEVICE_ERROR;\r | |
1990 | goto exit_release;\r | |
1991 | }\r | |
1992 | \r | |
1993 | // Check if we got a too-short frame\r | |
1994 | if ((PktStatus & RX_TOO_SHORT) != 0) {\r | |
1995 | DEBUG ((DEBUG_WARN, "LAN91x: Received frame too short (%d bytes)\n", PktLength));\r | |
1996 | LanDriver->Stats.RxUndersizeFrames += 1;\r | |
1997 | LanDriver->Stats.RxDroppedFrames += 1;\r | |
1998 | Status = EFI_DEVICE_ERROR;\r | |
1999 | goto exit_release;\r | |
2000 | }\r | |
2001 | \r | |
2002 | // Check if we got a too-long frame\r | |
2003 | if ((PktStatus & RX_TOO_LONG) != 0) {\r | |
2004 | DEBUG ((DEBUG_WARN, "LAN91x: Received frame too long (%d bytes)\n", PktLength));\r | |
2005 | LanDriver->Stats.RxOversizeFrames += 1;\r | |
2006 | LanDriver->Stats.RxDroppedFrames += 1;\r | |
2007 | Status = EFI_DEVICE_ERROR;\r | |
2008 | goto exit_release;\r | |
2009 | }\r | |
2010 | \r | |
2011 | // Check if we got an alignment error\r | |
2012 | if ((PktStatus & RX_ALGN_ERR) != 0) {\r | |
2013 | DEBUG ((DEBUG_WARN, "LAN91x: Received frame alignment error\n"));\r | |
2014 | // Don't seem to keep track of these specifically\r | |
2015 | LanDriver->Stats.RxDroppedFrames += 1;\r | |
2016 | Status = EFI_DEVICE_ERROR;\r | |
2017 | goto exit_release;\r | |
2018 | }\r | |
2019 | \r | |
2020 | // Classify the received fram\r | |
2021 | if ((PktStatus & RX_MULTICAST) != 0) {\r | |
2022 | LanDriver->Stats.RxMulticastFrames += 1;\r | |
2023 | } else if ((PktStatus & RX_BROADCAST) != 0) {\r | |
2024 | LanDriver->Stats.RxBroadcastFrames += 1;\r | |
2025 | } else {\r | |
2026 | LanDriver->Stats.RxUnicastFrames += 1;\r | |
2027 | }\r | |
2028 | \r | |
2029 | // Calculate the received packet data length\r | |
2030 | PktLength -= LAN91X_PKT_OVERHEAD;\r | |
2031 | if ((PktStatus & RX_ODD_FRAME) != 0) {\r | |
2032 | PktLength += 1;\r | |
2033 | }\r | |
2034 | \r | |
2035 | // Check buffer size\r | |
2036 | if (*BuffSize < PktLength) {\r | |
2037 | DEBUG ((DEBUG_WARN, "LAN91x: Receive buffer too small for packet (%d < %d)\n",\r | |
2038 | *BuffSize, PktLength));\r | |
2039 | *BuffSize = PktLength;\r | |
2040 | Status = EFI_BUFFER_TOO_SMALL;\r | |
2041 | goto exit_release;\r | |
2042 | }\r | |
2043 | \r | |
2044 | // Transfer the data bytes\r | |
2045 | DataPtr = Data;\r | |
2046 | ReadIoData (LanDriver, DataPtr, PktLength & ~0x0001);\r | |
2047 | \r | |
2048 | // Read the PktControl and Odd Byte from the FIFO\r | |
2049 | PktControl = ReadIoReg16 (LanDriver, LAN91X_DATA0);\r | |
2050 | if ((PktControl & PCW_ODD) != 0) {\r | |
2051 | DataPtr[PktLength - 1] = PktControl & PCW_ODD_BYTE;\r | |
2052 | }\r | |
2053 | \r | |
2054 | // Update buffer size\r | |
2055 | *BuffSize = PktLength;\r | |
2056 | \r | |
2057 | if (HdrSize != NULL) {\r | |
2058 | *HdrSize = LanDriver->SnpMode.MediaHeaderSize;\r | |
2059 | }\r | |
2060 | \r | |
2061 | // Extract the destination address\r | |
2062 | if (DstAddr != NULL) {\r | |
2063 | CopyMem (DstAddr, &DataPtr[0], NET_ETHER_ADDR_LEN);\r | |
2064 | }\r | |
2065 | \r | |
2066 | // Get the source address\r | |
2067 | if (SrcAddr != NULL) {\r | |
2068 | CopyMem (SrcAddr, &DataPtr[6], NET_ETHER_ADDR_LEN);\r | |
2069 | }\r | |
2070 | \r | |
2071 | // Get the protocol\r | |
2072 | if (Protocol != NULL) {\r | |
2073 | *Protocol = NTOHS (*(UINT16*)(&DataPtr[12]));\r | |
2074 | }\r | |
2075 | \r | |
2076 | // Update the Rx statistics\r | |
2077 | LanDriver->Stats.RxTotalBytes += PktLength;\r | |
2078 | LanDriver->Stats.RxGoodFrames += 1;\r | |
2079 | Status = EFI_SUCCESS;\r | |
2080 | \r | |
2081 | #if LAN91X_PRINT_PACKET_HEADERS\r | |
2082 | // Dump the packet header\r | |
2083 | DEBUG ((DEBUG_ERROR, "LAN91X:SnpReceive()\n"));\r | |
2084 | DEBUG ((DEBUG_ERROR, " HdrSize: %p, SrcAddr: %p, DstAddr: %p, Protocol: %p\n",\r | |
2085 | HdrSize, SrcAddr, DstAddr, Protocol));\r | |
2086 | DEBUG ((DEBUG_ERROR, " Length: %d, Last byte: %02x\n", PktLength, DataPtr[PktLength - 1]));\r | |
2087 | PrintIpDgram (&DataPtr[0], &DataPtr[6], &DataPtr[12], &DataPtr[14]);\r | |
2088 | #endif\r | |
2089 | \r | |
2090 | // Release the FIFO buffer\r | |
2091 | exit_release:\r | |
2092 | MmuOperation (LanDriver, MMUCR_OP_RX_POP_REL);\r | |
2093 | \r | |
2094 | // Restore TPL and return\r | |
2095 | exit_unlock:\r | |
2096 | gBS->RestoreTPL (SavedTpl);\r | |
2097 | return Status;\r | |
2098 | }\r | |
2099 | \r | |
2100 | \r | |
2101 | /*------------------ Driver Execution Environment main entry point ------------------*/\r | |
2102 | \r | |
2103 | /*\r | |
2104 | ** Entry point for the LAN91x driver\r | |
2105 | **\r | |
2106 | */\r | |
2107 | EFI_STATUS\r | |
2108 | Lan91xDxeEntry (\r | |
2109 | IN EFI_HANDLE Handle,\r | |
2110 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
2111 | )\r | |
2112 | {\r | |
2113 | EFI_STATUS Status;\r | |
2114 | LAN91X_DRIVER *LanDriver;\r | |
2115 | EFI_SIMPLE_NETWORK_PROTOCOL *Snp;\r | |
2116 | EFI_SIMPLE_NETWORK_MODE *SnpMode;\r | |
2117 | LAN91X_DEVICE_PATH *Lan91xPath;\r | |
2118 | \r | |
2119 | // The PcdLan91xDxeBaseAddress PCD must be defined\r | |
2120 | ASSERT(PcdGet32 (PcdLan91xDxeBaseAddress) != 0);\r | |
2121 | \r | |
2122 | // Allocate Resources\r | |
2123 | LanDriver = AllocateZeroPool (sizeof(LAN91X_DRIVER));\r | |
2124 | Lan91xPath = AllocateCopyPool (sizeof(LAN91X_DEVICE_PATH), &Lan91xPathTemplate);\r | |
2125 | \r | |
2126 | // Initialize I/O Space access info\r | |
2127 | LanDriver->IoBase = PcdGet32 (PcdLan91xDxeBaseAddress);\r | |
2128 | LanDriver->PhyAd = LAN91X_NO_PHY;\r | |
2129 | LanDriver->BankSel = 0xff;\r | |
2130 | \r | |
2131 | // Initialize pointers\r | |
2132 | Snp = &(LanDriver->Snp);\r | |
2133 | SnpMode = &(LanDriver->SnpMode);\r | |
2134 | Snp->Mode = SnpMode;\r | |
2135 | \r | |
2136 | // Set the signature of the LAN Driver structure\r | |
2137 | LanDriver->Signature = LAN91X_SIGNATURE;\r | |
2138 | \r | |
2139 | // Probe the device\r | |
2140 | Status = Probe (LanDriver);\r | |
2141 | if (EFI_ERROR(Status)) {\r | |
2142 | DEBUG ((DEBUG_ERROR, "LAN91x:Lan91xDxeEntry(): Probe failed with status %d\n", Status));\r | |
2143 | return Status;\r | |
2144 | }\r | |
2145 | \r | |
2146 | #ifdef LAN91X_PRINT_REGISTERS\r | |
2147 | PrintIoRegisters (LanDriver);\r | |
2148 | PrintPhyRegisters (LanDriver);\r | |
2149 | #endif\r | |
2150 | \r | |
2151 | // Initialize transmit queue\r | |
2152 | InitializeListHead (&LanDriver->TransmitQueueHead);\r | |
2153 | \r | |
2154 | // Assign fields and func pointers\r | |
2155 | Snp->Revision = EFI_SIMPLE_NETWORK_PROTOCOL_REVISION;\r | |
2156 | Snp->WaitForPacket = NULL;\r | |
2157 | Snp->Initialize = SnpInitialize;\r | |
2158 | Snp->Start = SnpStart;\r | |
2159 | Snp->Stop = SnpStop;\r | |
2160 | Snp->Reset = SnpReset;\r | |
2161 | Snp->Shutdown = SnpShutdown;\r | |
2162 | Snp->ReceiveFilters = SnpReceiveFilters;\r | |
2163 | Snp->StationAddress = SnpStationAddress;\r | |
2164 | Snp->Statistics = SnpStatistics;\r | |
2165 | Snp->MCastIpToMac = SnpMcastIptoMac;\r | |
2166 | Snp->NvData = SnpNvData;\r | |
2167 | Snp->GetStatus = SnpGetStatus;\r | |
2168 | Snp->Transmit = SnpTransmit;\r | |
2169 | Snp->Receive = SnpReceive;\r | |
2170 | \r | |
2171 | // Fill in simple network mode structure\r | |
2172 | SnpMode->State = EfiSimpleNetworkStopped;\r | |
2173 | SnpMode->HwAddressSize = NET_ETHER_ADDR_LEN; // HW address is 6 bytes\r | |
2174 | SnpMode->MediaHeaderSize = sizeof(ETHER_HEAD); // Size of an Ethernet header\r | |
2175 | SnpMode->MaxPacketSize = EFI_PAGE_SIZE; // Ethernet Frame (with VLAN tag +4 bytes)\r | |
2176 | \r | |
2177 | // Supported receive filters\r | |
2178 | SnpMode->ReceiveFilterMask = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST |\r | |
2179 | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST |\r | |
2180 | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST |\r | |
2181 | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS |\r | |
2182 | EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST;\r | |
2183 | \r | |
2184 | // Initially-enabled receive filters\r | |
2185 | SnpMode->ReceiveFilterSetting = EFI_SIMPLE_NETWORK_RECEIVE_UNICAST |\r | |
2186 | EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST |\r | |
2187 | EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST;\r | |
2188 | \r | |
2189 | // LAN91x has 64bit hash table. We can filter an infinite MACs, but\r | |
2190 | // higher-level software must filter out any hash collisions.\r | |
2191 | SnpMode->MaxMCastFilterCount = MAX_MCAST_FILTER_CNT;\r | |
2192 | SnpMode->MCastFilterCount = 0;\r | |
2193 | ZeroMem (&SnpMode->MCastFilter, MAX_MCAST_FILTER_CNT * sizeof(EFI_MAC_ADDRESS));\r | |
2194 | \r | |
2195 | // Set the interface type (1: Ethernet or 6: IEEE 802 Networks)\r | |
2196 | SnpMode->IfType = NET_IFTYPE_ETHERNET;\r | |
2197 | \r | |
2198 | // Mac address is changeable\r | |
2199 | SnpMode->MacAddressChangeable = TRUE;\r | |
2200 | \r | |
2201 | // We can only transmit one packet at a time\r | |
2202 | SnpMode->MultipleTxSupported = FALSE;\r | |
2203 | \r | |
2204 | // MediaPresent checks for cable connection and partner link\r | |
2205 | SnpMode->MediaPresentSupported = TRUE;\r | |
2206 | SnpMode->MediaPresent = FALSE;\r | |
2207 | \r | |
2208 | // Set broadcast address\r | |
2209 | SetMem (&SnpMode->BroadcastAddress, sizeof (EFI_MAC_ADDRESS), 0xFF);\r | |
2210 | \r | |
2211 | // Assign fields for device path\r | |
2212 | Lan91xPath->Lan91x.MacAddress = SnpMode->PermanentAddress;\r | |
2213 | Lan91xPath->Lan91x.IfType = SnpMode->IfType;\r | |
2214 | \r | |
2215 | // Initialise the protocol\r | |
2216 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
2217 | &LanDriver->ControllerHandle,\r | |
2218 | &gEfiSimpleNetworkProtocolGuid, Snp,\r | |
2219 | &gEfiDevicePathProtocolGuid, Lan91xPath,\r | |
2220 | NULL\r | |
2221 | );\r | |
2222 | \r | |
2223 | // Say what the status of loading the protocol structure is\r | |
2224 | if (EFI_ERROR(Status)) {\r | |
2225 | FreePool (LanDriver);\r | |
2226 | }\r | |
2227 | \r | |
2228 | return Status;\r | |
2229 | }\r |