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11f43dfd | 1 | /*++\r |
2 | \r | |
e72a8ec5 | 3 | Copyright (c) 2006 - 2007, Intel Corporation<BR>\r |
4 | All rights reserved. This program and the accompanying materials\r | |
5 | are licensed and made available under the terms and conditions of the BSD License\r | |
6 | which accompanies this distribution. The full text of the license may be found at\r | |
7 | http://opensource.org/licenses/bsd-license.php\r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11f43dfd | 11 | \r |
12 | \r | |
13 | Module Name:\r | |
14 | \r | |
15 | FloppyPeim.c\r | |
16 | \r | |
17 | Abstract: \r | |
18 | \r | |
19 | \r | |
20 | Revision History\r | |
21 | --*/\r | |
22 | \r | |
23 | \r | |
24 | #include "FloppyPeim.h"\r | |
25 | #include "IndustryStandard/Pcat.h"\r | |
26 | //\r | |
27 | // #include "sio.h"\r | |
28 | //\r | |
29 | \r | |
30 | #define PageSize 4096\r | |
31 | #define ISA_MAX_MEMORY_ADDRESS 0x1000000 // 16 MB Memory Range\r | |
32 | UINT16 FdcBaseAddress = 0x3f0;\r | |
33 | \r | |
34 | static DISKET_PARA_TABLE DiskPara[9] = {\r | |
35 | {\r | |
36 | 0x09,\r | |
37 | 0x50,\r | |
38 | 0xff,\r | |
39 | 0x2,\r | |
40 | 0x27,\r | |
41 | 0x4,\r | |
42 | 0x25,\r | |
43 | 0x14,\r | |
44 | 0x80\r | |
45 | },\r | |
46 | {\r | |
47 | 0x09,\r | |
48 | 0x2a,\r | |
49 | 0xff,\r | |
50 | 0x2,\r | |
51 | 0x27,\r | |
52 | 0x4,\r | |
53 | 0x25,\r | |
54 | 0x0f,\r | |
55 | 0x40\r | |
56 | },\r | |
57 | {\r | |
58 | 0x0f,\r | |
59 | 0x54,\r | |
60 | 0xff,\r | |
61 | 0x2,\r | |
62 | 0x4f,\r | |
63 | 0x4,\r | |
64 | 0x25,\r | |
65 | 0x0f,\r | |
66 | 0x0\r | |
67 | },\r | |
68 | {\r | |
69 | 0x09,\r | |
70 | 0x50,\r | |
71 | 0xff,\r | |
72 | 0x2,\r | |
73 | 0x4f,\r | |
74 | 0x4,\r | |
75 | 0x25,\r | |
76 | 0x0f,\r | |
77 | 0x80\r | |
78 | },\r | |
79 | {\r | |
80 | 0x09,\r | |
81 | 0x2a,\r | |
82 | 0xff,\r | |
83 | 0x2,\r | |
84 | 0x4f,\r | |
85 | 0x4,\r | |
86 | 0x25,\r | |
87 | 0x0f,\r | |
88 | 0x80\r | |
89 | },\r | |
90 | {\r | |
91 | 0x12,\r | |
92 | 0x1b,\r | |
93 | 0xff,\r | |
94 | 0x2,\r | |
95 | 0x4f,\r | |
96 | 0x4,\r | |
97 | 0x25,\r | |
98 | 0x0f,\r | |
99 | 0x0\r | |
100 | },\r | |
101 | {\r | |
102 | 0x09,\r | |
103 | 0x2a,\r | |
104 | 0xff,\r | |
105 | 0x2,\r | |
106 | 0x4f,\r | |
107 | 0x4,\r | |
108 | 0x25,\r | |
109 | 0x0f,\r | |
110 | 0x80\r | |
111 | },\r | |
112 | {\r | |
113 | 0x12,\r | |
114 | 0x1b,\r | |
115 | 0xff,\r | |
116 | 0x2,\r | |
117 | 0x4f,\r | |
118 | 0x4,\r | |
119 | 0x25,\r | |
120 | 0x0f,\r | |
121 | 0x0\r | |
122 | },\r | |
123 | {\r | |
124 | 0x24,\r | |
125 | 0x1b,\r | |
126 | 0xff,\r | |
127 | 0x2,\r | |
128 | 0x4f,\r | |
129 | 0x4,\r | |
130 | 0x25,\r | |
131 | 0x0f,\r | |
132 | 0xc0\r | |
133 | }\r | |
134 | };\r | |
135 | \r | |
136 | static UINTN BytePerSector[6] = { 0, 256, 512, 1024, 2048, 4096 };\r | |
137 | \r | |
138 | //\r | |
139 | // PEIM Entry Ppint\r | |
140 | //\r | |
141 | \r | |
142 | EFI_STATUS\r | |
143 | FdcPeimEntry (\r | |
144 | IN EFI_FFS_FILE_HEADER *FfsHeader,\r | |
145 | IN EFI_PEI_SERVICES **PeiServices\r | |
146 | )\r | |
147 | /*++\r | |
148 | \r | |
149 | Routine Description:\r | |
150 | \r | |
151 | Initializes the Fdc Block Io PPI\r | |
152 | \r | |
153 | Arguments:\r | |
154 | \r | |
155 | PeiServices - General purpose services available to every PEIM.\r | |
156 | FfsHeader - Ffs header pointer\r | |
157 | \r | |
158 | Returns:\r | |
159 | \r | |
160 | EFI_UNSUPPORTED - Can't find neccessary Ppi.\r | |
161 | EFI_OUT_OF_RESOURCES - Have no enough memory to create instance or descriptors.\r | |
162 | EFI_SUCCESS - Success. \r | |
163 | \r | |
164 | --*/\r | |
165 | {\r | |
166 | UINTN MemPages;\r | |
167 | EFI_STATUS Status;\r | |
168 | FDC_BLK_IO_DEV *FdcBlkIoDev;\r | |
169 | EFI_PHYSICAL_ADDRESS TempPtr;\r | |
170 | \r | |
171 | //\r | |
172 | // Initializing PEI floppy driver.\r | |
173 | //\r | |
174 | REPORT_STATUS_CODE (EFI_PROGRESS_CODE, EFI_PERIPHERAL_REMOVABLE_MEDIA + EFI_P_PC_INIT);\r | |
175 | \r | |
176 | //\r | |
177 | // Data\r | |
178 | //\r | |
179 | // Allocate PEI instance data.\r | |
180 | //\r | |
181 | MemPages = sizeof (FDC_BLK_IO_DEV) / PageSize + 1;\r | |
182 | Status = PeiServicesAllocatePages (\r | |
183 | EfiConventionalMemory,\r | |
184 | MemPages,\r | |
185 | &TempPtr\r | |
186 | );\r | |
187 | if (EFI_ERROR (Status)) {\r | |
188 | return EFI_OUT_OF_RESOURCES;\r | |
189 | }\r | |
190 | \r | |
191 | //\r | |
192 | // Initialize PEI instance data.\r | |
193 | //\r | |
194 | FdcBlkIoDev = (FDC_BLK_IO_DEV *) ((UINTN) TempPtr);\r | |
195 | FdcBlkIoDev->Signature = FDC_BLK_IO_DEV_SIGNATURE;\r | |
196 | \r | |
197 | //\r | |
198 | // InitSio ();\r | |
199 | //\r | |
200 | FdcEnumeration (FdcBlkIoDev);\r | |
201 | \r | |
202 | FdcBlkIoDev->FdcBlkIo.GetNumberOfBlockDevices = FdcGetNumberOfBlockDevices;\r | |
203 | FdcBlkIoDev->FdcBlkIo.GetBlockDeviceMediaInfo = FdcGetBlockDeviceMediaInfo;\r | |
204 | FdcBlkIoDev->FdcBlkIo.ReadBlocks = FdcReadBlocks;\r | |
205 | \r | |
206 | FdcBlkIoDev->PpiDescriptor.Flags = (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST);\r | |
207 | FdcBlkIoDev->PpiDescriptor.Guid = &gEfiPei144FloppyBlockIoPpiGuid;\r | |
208 | FdcBlkIoDev->PpiDescriptor.Ppi = &FdcBlkIoDev->FdcBlkIo;\r | |
209 | \r | |
210 | if (FdcBlkIoDev->DeviceCount != 0) {\r | |
211 | Status = PeiServicesInstallPpi (&FdcBlkIoDev->PpiDescriptor);\r | |
212 | if (EFI_ERROR (Status)) {\r | |
213 | //\r | |
214 | // PeiServicesFreePages (TempPtr, MemPages);\r | |
215 | //\r | |
216 | return EFI_OUT_OF_RESOURCES;\r | |
217 | }\r | |
218 | } else {\r | |
219 | //\r | |
220 | // PeiServicesFreePages (TempPtr, MemPages);\r | |
221 | //\r | |
222 | }\r | |
223 | \r | |
224 | return EFI_SUCCESS;\r | |
225 | }\r | |
226 | \r | |
227 | EFI_STATUS\r | |
228 | EFIAPI\r | |
229 | FdcGetNumberOfBlockDevices (\r | |
230 | IN EFI_PEI_SERVICES **PeiServices,\r | |
231 | IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,\r | |
232 | OUT UINTN *NumberBlockDevices\r | |
233 | )\r | |
234 | /*++\r | |
235 | \r | |
236 | Routine Description:\r | |
237 | \r | |
238 | Arguments:\r | |
239 | \r | |
240 | Returns:\r | |
241 | \r | |
242 | --*/\r | |
243 | // GC_TODO: This - add argument and description to function comment\r | |
244 | // GC_TODO: NumberBlockDevices - add argument and description to function comment\r | |
245 | // GC_TODO: EFI_INVALID_PARAMETER - add return value to function comment\r | |
246 | // GC_TODO: EFI_SUCCESS - add return value to function comment\r | |
247 | {\r | |
248 | FDC_BLK_IO_DEV *FdcBlkIoDev;\r | |
249 | \r | |
250 | FdcBlkIoDev = NULL;\r | |
251 | if (This == NULL) {\r | |
252 | return EFI_INVALID_PARAMETER;\r | |
253 | }\r | |
254 | \r | |
255 | FdcBlkIoDev = PEI_RECOVERY_FDC_FROM_BLKIO_THIS (This);\r | |
256 | \r | |
257 | *NumberBlockDevices = FdcBlkIoDev->DeviceCount;\r | |
258 | \r | |
259 | return EFI_SUCCESS;\r | |
260 | }\r | |
261 | \r | |
262 | EFI_STATUS\r | |
263 | EFIAPI\r | |
264 | FdcGetBlockDeviceMediaInfo (\r | |
265 | IN EFI_PEI_SERVICES **PeiServices,\r | |
266 | IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,\r | |
267 | IN UINTN DeviceIndex,\r | |
268 | OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo\r | |
269 | )\r | |
270 | /*++\r | |
271 | \r | |
272 | Routine Description:\r | |
273 | \r | |
274 | GC_TODO: Add function description\r | |
275 | \r | |
276 | Arguments:\r | |
277 | \r | |
278 | This - GC_TODO: add argument description\r | |
279 | DeviceIndex - GC_TODO: add argument description\r | |
280 | MediaInfo - GC_TODO: add argument description\r | |
281 | \r | |
282 | Returns:\r | |
283 | \r | |
284 | EFI_INVALID_PARAMETER - GC_TODO: Add description for return value\r | |
285 | EFI_INVALID_PARAMETER - GC_TODO: Add description for return value\r | |
286 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
287 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
288 | \r | |
289 | --*/\r | |
290 | {\r | |
291 | UINTN DeviceCount;\r | |
292 | FDC_BLK_IO_DEV *FdcBlkIoDev;\r | |
293 | BOOLEAN bStatus;\r | |
294 | \r | |
295 | FdcBlkIoDev = NULL;\r | |
296 | \r | |
297 | if (This == NULL || MediaInfo == NULL) {\r | |
298 | return EFI_INVALID_PARAMETER;\r | |
299 | }\r | |
300 | \r | |
301 | FdcBlkIoDev = PEI_RECOVERY_FDC_FROM_BLKIO_THIS (This);\r | |
302 | \r | |
303 | DeviceCount = FdcBlkIoDev->DeviceCount;\r | |
304 | \r | |
305 | //\r | |
306 | // DeviceIndex is zero-based value.\r | |
307 | //\r | |
308 | if (DeviceIndex > DeviceCount - 1) {\r | |
309 | return EFI_INVALID_PARAMETER;\r | |
310 | }\r | |
311 | //\r | |
312 | // probe media and retrieve latest media information\r | |
313 | //\r | |
314 | bStatus = DiscoverFdcDevice (\r | |
315 | FdcBlkIoDev,\r | |
316 | &FdcBlkIoDev->DeviceInfo[DeviceIndex],\r | |
317 | MediaInfo\r | |
318 | );\r | |
319 | \r | |
320 | if (!bStatus) {\r | |
321 | return EFI_DEVICE_ERROR;\r | |
322 | }\r | |
323 | \r | |
324 | CopyMem (\r | |
325 | &(FdcBlkIoDev->DeviceInfo[DeviceIndex].MediaInfo),\r | |
326 | MediaInfo,\r | |
327 | sizeof (EFI_PEI_BLOCK_IO_MEDIA)\r | |
328 | );\r | |
329 | return EFI_SUCCESS;\r | |
330 | }\r | |
331 | \r | |
332 | EFI_STATUS\r | |
333 | EFIAPI\r | |
334 | FdcReadBlocks (\r | |
335 | IN EFI_PEI_SERVICES **PeiServices,\r | |
336 | IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,\r | |
337 | IN UINTN DeviceIndex,\r | |
338 | IN EFI_PEI_LBA StartLba,\r | |
339 | IN UINTN BufferSize,\r | |
340 | OUT VOID *Buffer\r | |
341 | )\r | |
342 | /*++\r | |
343 | \r | |
344 | Routine Description:\r | |
345 | \r | |
346 | GC_TODO: Add function description\r | |
347 | \r | |
348 | Arguments:\r | |
349 | \r | |
350 | This - GC_TODO: add argument description\r | |
351 | DeviceIndex - GC_TODO: add argument description\r | |
352 | StartLba - GC_TODO: add argument description\r | |
353 | BufferSize - GC_TODO: add argument description\r | |
354 | Buffer - GC_TODO: add argument description\r | |
355 | \r | |
356 | Returns:\r | |
357 | \r | |
358 | EFI_INVALID_PARAMETER - GC_TODO: Add description for return value\r | |
359 | EFI_INVALID_PARAMETER - GC_TODO: Add description for return value\r | |
360 | EFI_INVALID_PARAMETER - GC_TODO: Add description for return value\r | |
361 | EFI_NO_MEDIA - GC_TODO: Add description for return value\r | |
362 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
363 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
364 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
365 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
366 | \r | |
367 | --*/\r | |
368 | {\r | |
369 | \r | |
370 | EFI_PEI_BLOCK_IO_MEDIA MediaInfo;\r | |
371 | EFI_STATUS Status;\r | |
372 | UINTN i;\r | |
373 | UINTN NumberOfBlocks;\r | |
374 | UINTN BlockSize;\r | |
375 | FDC_BLK_IO_DEV *FdcBlkIoDev;\r | |
376 | EFI_PHYSICAL_ADDRESS MemPage;\r | |
377 | \r | |
378 | FdcBlkIoDev = NULL;\r | |
379 | \r | |
380 | if (This == NULL) {\r | |
381 | return EFI_INVALID_PARAMETER;\r | |
382 | }\r | |
383 | \r | |
384 | FdcBlkIoDev = PEI_RECOVERY_FDC_FROM_BLKIO_THIS (This);\r | |
385 | \r | |
386 | if (Buffer == NULL) {\r | |
387 | return EFI_INVALID_PARAMETER;\r | |
388 | }\r | |
389 | \r | |
390 | Status = FdcGetBlockDeviceMediaInfo (PeiServices, This, DeviceIndex, &MediaInfo);\r | |
391 | if (Status != EFI_SUCCESS) {\r | |
392 | return Status;\r | |
393 | }\r | |
394 | \r | |
395 | BlockSize = MediaInfo.BlockSize;\r | |
396 | \r | |
397 | if (BufferSize % BlockSize != 0) {\r | |
398 | return EFI_INVALID_PARAMETER;\r | |
399 | }\r | |
400 | \r | |
401 | if (!MediaInfo.MediaPresent) {\r | |
402 | return EFI_NO_MEDIA;\r | |
403 | }\r | |
404 | \r | |
405 | NumberOfBlocks = BufferSize / BlockSize;\r | |
406 | \r | |
407 | //\r | |
408 | // allocate 40 blocks: 5*4k=20k=20*1024=40blocks\r | |
409 | //\r | |
410 | MemPage = ISA_MAX_MEMORY_ADDRESS - 1;\r | |
411 | Status = PeiServicesAllocatePages (\r | |
412 | EfiConventionalMemory,\r | |
413 | ((BufferSize % EFI_PAGE_SIZE) ? (BufferSize / EFI_PAGE_SIZE + 1) : (BufferSize / EFI_PAGE_SIZE)),\r | |
414 | &MemPage\r | |
415 | );\r | |
416 | if (EFI_ERROR (Status) || (MemPage >= ISA_MAX_MEMORY_ADDRESS)) {\r | |
417 | //\r | |
418 | // If failed, designate the address space for DMA\r | |
419 | //\r | |
420 | MemPage = 0x0f00000;\r | |
421 | //\r | |
422 | // return EFI_OUT_OF_RESOURCES;\r | |
423 | //\r | |
424 | }\r | |
425 | //\r | |
426 | // MemPage = (EFI_PHYSICAL_ADDRESS)(UINTN)Temp;\r | |
427 | //\r | |
428 | Status = MotorOn (FdcBlkIoDev, &(FdcBlkIoDev->DeviceInfo[DeviceIndex]));\r | |
429 | if (Status != EFI_SUCCESS) {\r | |
430 | return EFI_DEVICE_ERROR;\r | |
431 | }\r | |
432 | \r | |
433 | Status = Setup (FdcBlkIoDev, FdcBlkIoDev->DeviceInfo[DeviceIndex].DevPos);\r | |
434 | if (Status != EFI_SUCCESS) {\r | |
435 | MotorOff (FdcBlkIoDev, &(FdcBlkIoDev->DeviceInfo[DeviceIndex]));\r | |
436 | return EFI_DEVICE_ERROR;\r | |
437 | }\r | |
438 | //\r | |
439 | // read blocks in the same cylinder.\r | |
440 | // in a cylinder , there are 18 * 2 = 36 blocks\r | |
441 | //\r | |
442 | while ((i = GetTransferBlockCount (\r | |
443 | &(FdcBlkIoDev->DeviceInfo[DeviceIndex]),\r | |
444 | StartLba,\r | |
445 | NumberOfBlocks\r | |
446 | )) != 0 && Status == EFI_SUCCESS) {\r | |
447 | Status = ReadWriteDataSector (\r | |
448 | FdcBlkIoDev,\r | |
449 | &(FdcBlkIoDev->DeviceInfo[DeviceIndex]),\r | |
450 | (UINT8 *) (UINTN) MemPage,\r | |
451 | StartLba,\r | |
452 | i,\r | |
453 | READ\r | |
454 | );\r | |
455 | CopyMem ((UINT8 *) Buffer, (UINT8 *) (UINTN) MemPage, BlockSize * i);\r | |
456 | StartLba += i;\r | |
457 | NumberOfBlocks -= i;\r | |
458 | Buffer = (VOID *) ((UINTN) Buffer + i * BlockSize);\r | |
459 | }\r | |
460 | //\r | |
461 | // PeiServicesFreePages (MemPage, 5);\r | |
462 | //\r | |
463 | MotorOff (FdcBlkIoDev, &(FdcBlkIoDev->DeviceInfo[DeviceIndex]));\r | |
464 | \r | |
465 | switch (Status) {\r | |
466 | case EFI_SUCCESS:\r | |
467 | return EFI_SUCCESS;\r | |
468 | \r | |
469 | default:\r | |
470 | FdcReset (FdcBlkIoDev, FdcBlkIoDev->DeviceInfo[DeviceIndex].DevPos);\r | |
471 | return EFI_DEVICE_ERROR;\r | |
472 | }\r | |
473 | //\r | |
474 | // return Status;\r | |
475 | //\r | |
476 | }\r | |
477 | //\r | |
478 | // Internal function Implementation\r | |
479 | //\r | |
480 | UINT8\r | |
481 | FdcEnumeration (\r | |
482 | IN FDC_BLK_IO_DEV *FdcBlkIoDev\r | |
483 | )\r | |
484 | /*++\r | |
485 | \r | |
486 | Routine Description:\r | |
487 | \r | |
488 | Enumerate floppy device\r | |
489 | \r | |
490 | Arguments:\r | |
491 | \r | |
492 | FdcBlkIoDev - Instance of floppy device controller\r | |
493 | \r | |
494 | Returns:\r | |
495 | \r | |
496 | DevNo - Device No.\r | |
497 | \r | |
498 | --*/\r | |
499 | {\r | |
500 | UINT8 DevPos;\r | |
501 | UINT8 DevNo;\r | |
502 | EFI_PEI_BLOCK_IO_MEDIA MediaInfo;\r | |
503 | EFI_STATUS Status;\r | |
504 | \r | |
505 | DevNo = 0;\r | |
506 | \r | |
507 | //\r | |
508 | // DevPos=0 means A: 1 means B:\r | |
509 | //\r | |
510 | for (DevPos = 0; DevPos < 2; DevPos++) {\r | |
511 | //\r | |
512 | // Detecting device presence\r | |
513 | //\r | |
514 | REPORT_STATUS_CODE (EFI_PROGRESS_CODE, EFI_PERIPHERAL_REMOVABLE_MEDIA + EFI_P_PC_PRESENCE_DETECT);\r | |
515 | \r | |
516 | //\r | |
517 | // Data\r | |
518 | //\r | |
519 | // Reset FDC\r | |
520 | //\r | |
521 | Status = FdcReset (FdcBlkIoDev, DevPos);\r | |
522 | \r | |
523 | if (EFI_ERROR (Status)) {\r | |
524 | continue;\r | |
525 | }\r | |
526 | \r | |
527 | FdcBlkIoDev->DeviceInfo[DevPos].DevPos = DevPos;\r | |
528 | FdcBlkIoDev->DeviceInfo[DevPos].Pcn = 0;\r | |
529 | FdcBlkIoDev->DeviceInfo[DevPos].MotorOn = FALSE;\r | |
530 | FdcBlkIoDev->DeviceInfo[DevPos].NeedRecalibrate = TRUE;\r | |
531 | FdcBlkIoDev->DeviceInfo[DevPos].Type = _1440K_1440K;\r | |
532 | \r | |
533 | //\r | |
534 | // Discover FDC device\r | |
535 | //\r | |
536 | if (DiscoverFdcDevice (FdcBlkIoDev, &(FdcBlkIoDev->DeviceInfo[DevPos]), &MediaInfo)) {\r | |
537 | FdcBlkIoDev->DeviceInfo[DevNo].DevPos = DevPos;\r | |
538 | \r | |
539 | FdcBlkIoDev->DeviceInfo[DevNo].Pcn = FdcBlkIoDev->DeviceInfo[DevPos].Pcn;\r | |
540 | FdcBlkIoDev->DeviceInfo[DevNo].MotorOn = FdcBlkIoDev->DeviceInfo[DevPos].MotorOn;\r | |
541 | FdcBlkIoDev->DeviceInfo[DevNo].NeedRecalibrate = FdcBlkIoDev->DeviceInfo[DevPos].NeedRecalibrate;\r | |
542 | FdcBlkIoDev->DeviceInfo[DevNo].Type = FdcBlkIoDev->DeviceInfo[DevPos].Type;\r | |
543 | \r | |
544 | CopyMem (\r | |
545 | &(FdcBlkIoDev->DeviceInfo[DevNo].MediaInfo),\r | |
546 | &MediaInfo,\r | |
547 | sizeof (EFI_PEI_BLOCK_IO_MEDIA)\r | |
548 | );\r | |
549 | \r | |
550 | DevNo++;\r | |
551 | } else {\r | |
552 | //\r | |
553 | // Assume controller error\r | |
554 | //\r | |
555 | REPORT_STATUS_CODE (\r | |
556 | EFI_ERROR_CODE | EFI_ERROR_MINOR,\r | |
557 | EFI_PERIPHERAL_REMOVABLE_MEDIA + EFI_P_EC_CONTROLLER_ERROR\r | |
558 | );\r | |
559 | \r | |
560 | //\r | |
561 | // Data\r | |
562 | //\r | |
563 | }\r | |
564 | }\r | |
565 | \r | |
566 | FdcBlkIoDev->DeviceCount = DevNo;\r | |
567 | return DevNo;\r | |
568 | }\r | |
569 | \r | |
570 | BOOLEAN\r | |
571 | DiscoverFdcDevice (\r | |
572 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
573 | IN OUT PEI_FLOPPY_DEVICE_INFO *Info,\r | |
574 | OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo\r | |
575 | )\r | |
576 | /*++\r | |
577 | \r | |
578 | Routine Description:\r | |
579 | \r | |
580 | GC_TODO: Add function description\r | |
581 | \r | |
582 | Arguments:\r | |
583 | \r | |
584 | FdcBlkIoDev - GC_TODO: add argument description\r | |
585 | Info - GC_TODO: add argument description\r | |
586 | MediaInfo - GC_TODO: add argument description\r | |
587 | \r | |
588 | Returns:\r | |
589 | \r | |
590 | GC_TODO: add return values\r | |
591 | \r | |
592 | --*/\r | |
593 | {\r | |
594 | EFI_STATUS Status;\r | |
595 | DISKET_PARA_TABLE *Para;\r | |
596 | \r | |
597 | Status = MotorOn (FdcBlkIoDev, Info);\r | |
598 | if (Status != EFI_SUCCESS) {\r | |
599 | return FALSE;\r | |
600 | }\r | |
601 | \r | |
602 | Status = Recalibrate (FdcBlkIoDev, Info);\r | |
603 | \r | |
604 | if (Status != EFI_SUCCESS) {\r | |
605 | MotorOff (FdcBlkIoDev, Info);\r | |
606 | return FALSE;\r | |
607 | }\r | |
608 | //\r | |
609 | // Set Media Parameter\r | |
610 | //\r | |
611 | MediaInfo->DeviceType = LegacyFloppy;\r | |
612 | MediaInfo->MediaPresent = TRUE;\r | |
613 | \r | |
614 | //\r | |
615 | // Check Media\r | |
616 | //\r | |
617 | Status = DisketChanged (FdcBlkIoDev, Info);\r | |
618 | switch (Status) {\r | |
619 | case EFI_NO_MEDIA:\r | |
620 | MediaInfo->MediaPresent = FALSE;\r | |
621 | break;\r | |
622 | \r | |
623 | case EFI_MEDIA_CHANGED:\r | |
624 | case EFI_SUCCESS:\r | |
625 | break;\r | |
626 | \r | |
627 | default:\r | |
628 | //\r | |
629 | // EFI_DEVICE_ERROR\r | |
630 | //\r | |
631 | MotorOff (FdcBlkIoDev, Info);\r | |
632 | return FALSE;\r | |
633 | }\r | |
634 | \r | |
635 | MotorOff (FdcBlkIoDev, Info);\r | |
636 | \r | |
637 | Para = (DISKET_PARA_TABLE *) ((UINT8 *) DiskPara + sizeof (DISKET_PARA_TABLE) * Info->Type);\r | |
638 | MediaInfo->BlockSize = BytePerSector[Para->Number];\r | |
639 | MediaInfo->LastBlock = Para->EOT * 2 * (Para->MaxTrackNum + 1) - 1;\r | |
640 | \r | |
641 | return TRUE;\r | |
642 | }\r | |
643 | \r | |
644 | EFI_STATUS\r | |
645 | FdcReset (\r | |
646 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
647 | IN UINT8 DevPos\r | |
648 | )\r | |
649 | /*++\r | |
650 | \r | |
651 | Routine Description:\r | |
652 | \r | |
653 | GC_TODO: Add function description\r | |
654 | \r | |
655 | Arguments:\r | |
656 | \r | |
657 | FdcBlkIoDev - GC_TODO: add argument description\r | |
658 | DevPos - GC_TODO: add argument description\r | |
659 | \r | |
660 | Returns:\r | |
661 | \r | |
662 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
663 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
664 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
665 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
666 | \r | |
667 | --*/\r | |
668 | {\r | |
669 | UINT8 data;\r | |
670 | UINT8 sts0;\r | |
671 | UINT8 pcn;\r | |
672 | UINTN i;\r | |
673 | \r | |
674 | //\r | |
675 | // Reset specified Floppy Logic Drive according to Fdd -> Disk\r | |
676 | // Set Digital Output Register(DOR) to do reset work\r | |
677 | // bit0 & bit1 of DOR : Drive Select\r | |
678 | // bit2 : Reset bit\r | |
679 | // bit3 : DMA and Int bit\r | |
680 | // Reset : A "0" written to bit2 resets the FDC, this reset will remain active until\r | |
681 | // a "1" is written to this bit.\r | |
682 | // Reset step 1:\r | |
683 | // use bit0 & bit1 to select the logic drive\r | |
684 | // write "0" to bit2\r | |
685 | //\r | |
686 | data = 0x0;\r | |
687 | data = (UINT8) (data | (SELECT_DRV & DevPos));\r | |
688 | IoWrite8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_DOR), data);\r | |
689 | \r | |
690 | //\r | |
691 | // wait some time,at least 120us\r | |
692 | //\r | |
693 | MicroSecondDelay (500);\r | |
694 | //\r | |
695 | // Reset step 2:\r | |
696 | // write "1" to bit2\r | |
697 | // write "1" to bit3 : enable DMA\r | |
698 | //\r | |
699 | data |= 0x0C;\r | |
700 | IoWrite8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_DOR), data);\r | |
701 | \r | |
702 | MicroSecondDelay (2000);\r | |
703 | \r | |
704 | //\r | |
705 | // wait specified floppy logic drive is not busy\r | |
706 | //\r | |
707 | if (FdcWaitForBSYClear (FdcBlkIoDev, DevPos, 1) != EFI_SUCCESS) {\r | |
708 | return EFI_DEVICE_ERROR;\r | |
709 | }\r | |
710 | //\r | |
711 | // Set the Transfer Data Rate\r | |
712 | //\r | |
713 | IoWrite8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_CCR), 0x0);\r | |
714 | \r | |
715 | MicroSecondDelay (100);\r | |
716 | \r | |
717 | //\r | |
718 | // Issue Sense interrupt command for each drive (total 4 drives)\r | |
719 | //\r | |
720 | for (i = 0; i < 4; i++) {\r | |
721 | if (SenseIntStatus (FdcBlkIoDev, &sts0, &pcn) != EFI_SUCCESS) {\r | |
722 | return EFI_DEVICE_ERROR;\r | |
723 | }\r | |
724 | }\r | |
725 | //\r | |
726 | // issue Specify command\r | |
727 | //\r | |
728 | if (Specify (FdcBlkIoDev) != EFI_SUCCESS) {\r | |
729 | return EFI_DEVICE_ERROR;\r | |
730 | }\r | |
731 | \r | |
732 | return EFI_SUCCESS;\r | |
733 | }\r | |
734 | \r | |
735 | EFI_STATUS\r | |
736 | FdcWaitForBSYClear (\r | |
737 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
738 | IN UINT8 DevPos,\r | |
739 | IN UINTN TimeoutInSeconds\r | |
740 | )\r | |
741 | /*++\r | |
742 | \r | |
743 | Routine Description:\r | |
744 | \r | |
745 | GC_TODO: Add function description\r | |
746 | \r | |
747 | Arguments:\r | |
748 | \r | |
749 | FdcBlkIoDev - GC_TODO: add argument description\r | |
750 | DevPos - GC_TODO: add argument description\r | |
751 | TimeoutInSeconds - GC_TODO: add argument description\r | |
752 | \r | |
753 | Returns:\r | |
754 | \r | |
755 | EFI_TIMEOUT - GC_TODO: Add description for return value\r | |
756 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
757 | \r | |
758 | --*/\r | |
759 | {\r | |
760 | UINTN Delay;\r | |
761 | UINT8 StatusRegister;\r | |
762 | UINT8 Mask;\r | |
763 | \r | |
764 | //\r | |
765 | // How to determine drive and command are busy or not: by the bits of Main Status Register\r | |
766 | // bit0: Drive 0 busy (drive A)\r | |
767 | // bit1: Drive 1 busy (drive B)\r | |
768 | // bit4: Command busy\r | |
769 | //\r | |
770 | // set mask: for drive A set bit0 & bit4; for drive B set bit1 & bit4\r | |
771 | //\r | |
772 | Mask = (UINT8) ((DevPos == 0 ? MSR_DAB : MSR_DBB) | MSR_CB);\r | |
773 | \r | |
774 | Delay = ((TimeoutInSeconds * STALL_1_MSECOND) / 50) + 1;\r | |
775 | \r | |
776 | do {\r | |
777 | StatusRegister = IoRead8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_MSR));\r | |
778 | \r | |
779 | if ((StatusRegister & Mask) == 0x00) {\r | |
780 | break;\r | |
781 | //\r | |
782 | // not busy\r | |
783 | //\r | |
784 | }\r | |
785 | \r | |
786 | MicroSecondDelay (50);\r | |
787 | } while (--Delay);\r | |
788 | \r | |
789 | if (Delay == 0) {\r | |
790 | return EFI_TIMEOUT;\r | |
791 | }\r | |
792 | \r | |
793 | return EFI_SUCCESS;\r | |
794 | }\r | |
795 | \r | |
796 | EFI_STATUS\r | |
797 | SenseIntStatus (\r | |
798 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
799 | IN OUT UINT8 *sts0,\r | |
800 | IN OUT UINT8 *pcn\r | |
801 | )\r | |
802 | /*++\r | |
803 | \r | |
804 | Routine Description:\r | |
805 | \r | |
806 | GC_TODO: Add function description\r | |
807 | \r | |
808 | Arguments:\r | |
809 | \r | |
810 | FdcBlkIoDev - GC_TODO: add argument description\r | |
811 | sts0 - GC_TODO: add argument description\r | |
812 | pcn - GC_TODO: add argument description\r | |
813 | \r | |
814 | Returns:\r | |
815 | \r | |
816 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
817 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
818 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
819 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
820 | \r | |
821 | --*/\r | |
822 | {\r | |
823 | UINT8 command;\r | |
824 | \r | |
825 | command = SENSE_INT_STATUS_CMD;\r | |
826 | if (DataOutByte (FdcBlkIoDev, &command) != EFI_SUCCESS) {\r | |
827 | return EFI_DEVICE_ERROR;\r | |
828 | }\r | |
829 | \r | |
830 | if (DataInByte (FdcBlkIoDev, sts0) != EFI_SUCCESS) {\r | |
831 | return EFI_DEVICE_ERROR;\r | |
832 | }\r | |
833 | \r | |
834 | if (DataInByte (FdcBlkIoDev, pcn) != EFI_SUCCESS) {\r | |
835 | return EFI_DEVICE_ERROR;\r | |
836 | }\r | |
837 | \r | |
838 | return EFI_SUCCESS;\r | |
839 | }\r | |
840 | \r | |
841 | EFI_STATUS\r | |
842 | Specify (\r | |
843 | IN FDC_BLK_IO_DEV *FdcBlkIoDev\r | |
844 | )\r | |
845 | /*++\r | |
846 | \r | |
847 | Routine Description:\r | |
848 | \r | |
849 | GC_TODO: Add function description\r | |
850 | \r | |
851 | Arguments:\r | |
852 | \r | |
853 | FdcBlkIoDev - GC_TODO: add argument description\r | |
854 | \r | |
855 | Returns:\r | |
856 | \r | |
857 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
858 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
859 | \r | |
860 | --*/\r | |
861 | {\r | |
862 | FDC_SPECIFY_CMD Command;\r | |
863 | UINTN i;\r | |
864 | UINT8 *pt;\r | |
865 | \r | |
866 | ZeroMem (&Command, sizeof (FDC_SPECIFY_CMD));\r | |
867 | Command.CommandCode = SPECIFY_CMD;\r | |
868 | //\r | |
869 | // set SRT, HUT\r | |
870 | //\r | |
871 | Command.SrtHut = 0xdf;\r | |
872 | //\r | |
873 | // 0xdf;\r | |
874 | // set HLT and DMA\r | |
875 | //\r | |
876 | Command.HltNd = 0x02;\r | |
877 | \r | |
878 | pt = (UINT8 *) (&Command);\r | |
879 | for (i = 0; i < sizeof (FDC_SPECIFY_CMD); i++) {\r | |
880 | if (DataOutByte (FdcBlkIoDev, pt++) != EFI_SUCCESS) {\r | |
881 | return EFI_DEVICE_ERROR;\r | |
882 | }\r | |
883 | }\r | |
884 | \r | |
885 | return EFI_SUCCESS;\r | |
886 | }\r | |
887 | \r | |
888 | EFI_STATUS\r | |
889 | DataInByte (\r | |
890 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
891 | IN OUT UINT8 *pt\r | |
892 | )\r | |
893 | /*++\r | |
894 | \r | |
895 | Routine Description:\r | |
896 | \r | |
897 | GC_TODO: Add function description\r | |
898 | \r | |
899 | Arguments:\r | |
900 | \r | |
901 | FdcBlkIoDev - GC_TODO: add argument description\r | |
902 | pt - GC_TODO: add argument description\r | |
903 | \r | |
904 | Returns:\r | |
905 | \r | |
906 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
907 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
908 | \r | |
909 | --*/\r | |
910 | {\r | |
911 | UINT8 data;\r | |
912 | \r | |
913 | //\r | |
914 | // wait for 1ms and detect the FDC is ready to be read\r | |
915 | //\r | |
916 | if (FdcDRQReady (FdcBlkIoDev, DATA_IN, 1) != EFI_SUCCESS) {\r | |
917 | return EFI_DEVICE_ERROR;\r | |
918 | //\r | |
919 | // is not ready\r | |
920 | //\r | |
921 | }\r | |
922 | \r | |
923 | data = IoRead8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_DTR));\r | |
924 | MicroSecondDelay (50);\r | |
925 | *pt = data;\r | |
926 | return EFI_SUCCESS;\r | |
927 | }\r | |
928 | \r | |
929 | EFI_STATUS\r | |
930 | DataOutByte (\r | |
931 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
932 | IN UINT8 *pt\r | |
933 | )\r | |
934 | /*++\r | |
935 | \r | |
936 | Routine Description:\r | |
937 | \r | |
938 | GC_TODO: Add function description\r | |
939 | \r | |
940 | Arguments:\r | |
941 | \r | |
942 | FdcBlkIoDev - GC_TODO: add argument description\r | |
943 | pt - GC_TODO: add argument description\r | |
944 | \r | |
945 | Returns:\r | |
946 | \r | |
947 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
948 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
949 | \r | |
950 | --*/\r | |
951 | {\r | |
952 | UINT8 data;\r | |
953 | \r | |
954 | //\r | |
955 | // wait for 1ms and detect the FDC is ready to be written\r | |
956 | //\r | |
957 | if (FdcDRQReady (FdcBlkIoDev, DATA_OUT, 1) != EFI_SUCCESS) {\r | |
958 | return EFI_DEVICE_ERROR;\r | |
959 | //\r | |
960 | // is not ready\r | |
961 | //\r | |
962 | }\r | |
963 | \r | |
964 | data = *pt;\r | |
965 | IoWrite8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_DTR), data);\r | |
966 | MicroSecondDelay (50);\r | |
967 | return EFI_SUCCESS;\r | |
968 | }\r | |
969 | \r | |
970 | EFI_STATUS\r | |
971 | FdcDRQReady (\r | |
972 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
973 | IN BOOLEAN Dio,\r | |
974 | IN UINTN TimeoutInSeconds\r | |
975 | )\r | |
976 | /*++\r | |
977 | \r | |
978 | Routine Description:\r | |
979 | \r | |
980 | GC_TODO: Add function description\r | |
981 | \r | |
982 | Arguments:\r | |
983 | \r | |
984 | FdcBlkIoDev - GC_TODO: add argument description\r | |
985 | Dio - GC_TODO: add argument description\r | |
986 | TimeoutInSeconds - GC_TODO: add argument description\r | |
987 | \r | |
988 | Returns:\r | |
989 | \r | |
990 | EFI_NOT_READY - GC_TODO: Add description for return value\r | |
991 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
992 | \r | |
993 | --*/\r | |
994 | {\r | |
995 | UINTN Delay;\r | |
996 | UINT8 StatusRegister;\r | |
997 | UINT8 DataInOut;\r | |
998 | \r | |
999 | //\r | |
1000 | // Before writing to FDC or reading from FDC, the Host must examine\r | |
1001 | // the bit7(RQM) and bit6(DIO) of the Main Status Register.\r | |
1002 | // That is to say:\r | |
1003 | // command bytes can not be written to Data Register unless RQM is 1 and DIO is 0\r | |
1004 | // result bytes can not be read from Data Register unless RQM is 1 and DIO is 1\r | |
1005 | //\r | |
1006 | DataInOut = (UINT8) (Dio << 6);\r | |
1007 | //\r | |
1008 | // in order to compare bit6\r | |
1009 | //\r | |
1010 | Delay = ((TimeoutInSeconds * STALL_1_MSECOND) / 50) + 1;\r | |
1011 | do {\r | |
1012 | StatusRegister = IoRead8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_MSR));\r | |
1013 | if ((StatusRegister & MSR_RQM) == MSR_RQM && (StatusRegister & MSR_DIO) == DataInOut) {\r | |
1014 | break;\r | |
1015 | //\r | |
1016 | // FDC is ready\r | |
1017 | //\r | |
1018 | }\r | |
1019 | \r | |
1020 | MicroSecondDelay (50);\r | |
1021 | } while (--Delay);\r | |
1022 | \r | |
1023 | if (Delay == 0) {\r | |
1024 | return EFI_NOT_READY;\r | |
1025 | //\r | |
1026 | // FDC is not ready within the specified time period\r | |
1027 | //\r | |
1028 | }\r | |
1029 | \r | |
1030 | return EFI_SUCCESS;\r | |
1031 | }\r | |
1032 | \r | |
1033 | EFI_STATUS\r | |
1034 | MotorOn (\r | |
1035 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
1036 | IN OUT PEI_FLOPPY_DEVICE_INFO *Info\r | |
1037 | )\r | |
1038 | /*++\r | |
1039 | \r | |
1040 | Routine Description:\r | |
1041 | \r | |
1042 | GC_TODO: Add function description\r | |
1043 | \r | |
1044 | Arguments:\r | |
1045 | \r | |
1046 | FdcBlkIoDev - GC_TODO: add argument description\r | |
1047 | Info - GC_TODO: add argument description\r | |
1048 | \r | |
1049 | Returns:\r | |
1050 | \r | |
1051 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1052 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1053 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1054 | \r | |
1055 | --*/\r | |
1056 | {\r | |
1057 | //\r | |
1058 | // EFI_STATUS Status;\r | |
1059 | //\r | |
1060 | UINT8 data;\r | |
1061 | UINT8 DevPos;\r | |
1062 | \r | |
1063 | //\r | |
1064 | // Control of the floppy drive motors is a big pain. If motor is off, you have to turn it\r | |
1065 | // on first. But you can not leave the motor on all the time, since that would wear out the\r | |
1066 | // disk. On the other hand, if you turn the motor off after each operation, the system performance\r | |
1067 | // will be awful. The compromise used in this driver is to leave the motor on for 2 seconds after\r | |
1068 | // each operation. If a new operation is started in that interval(2s), the motor need not be\r | |
1069 | // turned on again. If no new operation is started, a timer goes off and the motor is turned off\r | |
1070 | //\r | |
1071 | DevPos = Info->DevPos;\r | |
1072 | \r | |
1073 | if (Info->MotorOn) {\r | |
1074 | return EFI_SUCCESS;\r | |
1075 | }\r | |
1076 | //\r | |
1077 | // The drive's motor is off, so need turn it on\r | |
1078 | // first look at command and drive are busy or not\r | |
1079 | //\r | |
1080 | if (FdcWaitForBSYClear (FdcBlkIoDev, DevPos, 1) != EFI_SUCCESS) {\r | |
1081 | return EFI_DEVICE_ERROR;\r | |
1082 | }\r | |
1083 | //\r | |
1084 | // for drive A: 1CH, drive B: 2DH\r | |
1085 | //\r | |
1086 | data = 0x0C;\r | |
1087 | data = (UINT8) (data | (SELECT_DRV & DevPos));\r | |
1088 | if (DevPos == 0) {\r | |
1089 | data |= DRVA_MOTOR_ON;\r | |
1090 | //\r | |
1091 | // FdcTimer[1].MotorOn = FALSE;\r | |
1092 | // Info->MotorOn = FALSE;\r | |
1093 | //\r | |
1094 | } else {\r | |
1095 | data |= DRVB_MOTOR_ON;\r | |
1096 | //\r | |
1097 | // FdcTimer[0].MotorOn = FALSE;\r | |
1098 | // Info->MotorOn = FALSE;\r | |
1099 | //\r | |
1100 | }\r | |
1101 | \r | |
1102 | Info->MotorOn = FALSE;\r | |
1103 | \r | |
1104 | IoWrite8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_DOR), data);\r | |
1105 | \r | |
1106 | MicroSecondDelay (4000);\r | |
1107 | //\r | |
1108 | // FdcTimer[DevPos].MotorOn = TRUE;\r | |
1109 | //\r | |
1110 | Info->MotorOn = TRUE;\r | |
1111 | return EFI_SUCCESS;\r | |
1112 | }\r | |
1113 | \r | |
1114 | EFI_STATUS\r | |
1115 | MotorOff (\r | |
1116 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
1117 | IN OUT PEI_FLOPPY_DEVICE_INFO *Info\r | |
1118 | )\r | |
1119 | /*++\r | |
1120 | \r | |
1121 | Routine Description:\r | |
1122 | \r | |
1123 | GC_TODO: Add function description\r | |
1124 | \r | |
1125 | Arguments:\r | |
1126 | \r | |
1127 | FdcBlkIoDev - GC_TODO: add argument description\r | |
1128 | Info - GC_TODO: add argument description\r | |
1129 | \r | |
1130 | Returns:\r | |
1131 | \r | |
1132 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1133 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1134 | \r | |
1135 | --*/\r | |
1136 | {\r | |
1137 | UINT8 data;\r | |
1138 | UINT8 DevPos;\r | |
1139 | \r | |
1140 | DevPos = Info->DevPos;\r | |
1141 | \r | |
1142 | if (!Info->MotorOn) {\r | |
1143 | return EFI_SUCCESS;\r | |
1144 | }\r | |
1145 | //\r | |
1146 | // the motor is on, so need motor off\r | |
1147 | //\r | |
1148 | data = 0x0C;\r | |
1149 | data = (UINT8) (data | (SELECT_DRV & DevPos));\r | |
1150 | \r | |
1151 | IoWrite8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_DOR), data);\r | |
1152 | MicroSecondDelay (50);\r | |
1153 | //\r | |
1154 | // FdcTimer[DevPos].MotorOn = FALSE;\r | |
1155 | //\r | |
1156 | Info->MotorOn = FALSE;\r | |
1157 | \r | |
1158 | return EFI_SUCCESS;\r | |
1159 | }\r | |
1160 | \r | |
1161 | EFI_STATUS\r | |
1162 | DisketChanged (\r | |
1163 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
1164 | IN OUT PEI_FLOPPY_DEVICE_INFO *Info\r | |
1165 | )\r | |
1166 | /*++\r | |
1167 | \r | |
1168 | Routine Description:\r | |
1169 | \r | |
1170 | GC_TODO: Add function description\r | |
1171 | \r | |
1172 | Arguments:\r | |
1173 | \r | |
1174 | FdcBlkIoDev - GC_TODO: add argument description\r | |
1175 | Info - GC_TODO: add argument description\r | |
1176 | \r | |
1177 | Returns:\r | |
1178 | \r | |
1179 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1180 | EFI_NO_MEDIA - GC_TODO: Add description for return value\r | |
1181 | EFI_MEDIA_CHANGED - GC_TODO: Add description for return value\r | |
1182 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1183 | \r | |
1184 | --*/\r | |
1185 | {\r | |
1186 | EFI_STATUS Status;\r | |
1187 | UINT8 data;\r | |
1188 | \r | |
1189 | //\r | |
1190 | // Check change line\r | |
1191 | //\r | |
1192 | data = IoRead8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_DIR));\r | |
1193 | \r | |
1194 | MicroSecondDelay (50);\r | |
1195 | \r | |
1196 | if ((data & DIR_DCL) == 0x80) {\r | |
1197 | if (Info->Pcn != 0) {\r | |
1198 | Status = Recalibrate (FdcBlkIoDev, Info);\r | |
1199 | } else {\r | |
1200 | Status = Seek (FdcBlkIoDev, Info, 0x30);\r | |
1201 | }\r | |
1202 | \r | |
1203 | if (Status != EFI_SUCCESS) {\r | |
1204 | return EFI_DEVICE_ERROR;\r | |
1205 | //\r | |
1206 | // Fail to do the seek or recalibrate operation\r | |
1207 | //\r | |
1208 | }\r | |
1209 | \r | |
1210 | data = IoRead8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_DIR));\r | |
1211 | \r | |
1212 | MicroSecondDelay (50);\r | |
1213 | \r | |
1214 | if ((data & DIR_DCL) == 0x80) {\r | |
1215 | return EFI_NO_MEDIA;\r | |
1216 | }\r | |
1217 | \r | |
1218 | return EFI_MEDIA_CHANGED;\r | |
1219 | }\r | |
1220 | \r | |
1221 | return EFI_SUCCESS;\r | |
1222 | }\r | |
1223 | \r | |
1224 | EFI_STATUS\r | |
1225 | Recalibrate (\r | |
1226 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
1227 | IN OUT PEI_FLOPPY_DEVICE_INFO *Info\r | |
1228 | )\r | |
1229 | /*++\r | |
1230 | \r | |
1231 | Routine Description:\r | |
1232 | \r | |
1233 | GC_TODO: Add function description\r | |
1234 | \r | |
1235 | Arguments:\r | |
1236 | \r | |
1237 | FdcBlkIoDev - GC_TODO: add argument description\r | |
1238 | Info - GC_TODO: add argument description\r | |
1239 | \r | |
1240 | Returns:\r | |
1241 | \r | |
1242 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1243 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1244 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1245 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1246 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1247 | \r | |
1248 | --*/\r | |
1249 | {\r | |
1250 | FDC_COMMAND_PACKET2 Command;\r | |
1251 | UINTN i;\r | |
1252 | UINT8 sts0;\r | |
1253 | UINT8 pcn;\r | |
1254 | UINT8 *pt;\r | |
1255 | UINT8 Count;\r | |
1256 | UINT8 DevPos;\r | |
1257 | \r | |
1258 | Count = 2;\r | |
1259 | DevPos = Info->DevPos;\r | |
1260 | \r | |
1261 | while (Count > 0) {\r | |
1262 | ZeroMem (&Command, sizeof (FDC_COMMAND_PACKET2));\r | |
1263 | Command.CommandCode = RECALIBRATE_CMD;\r | |
1264 | //\r | |
1265 | // drive select\r | |
1266 | //\r | |
1267 | if (DevPos == 0) {\r | |
1268 | Command.DiskHeadSel = 0;\r | |
1269 | //\r | |
1270 | // 0\r | |
1271 | //\r | |
1272 | } else {\r | |
1273 | Command.DiskHeadSel = 1;\r | |
1274 | //\r | |
1275 | // 1\r | |
1276 | //\r | |
1277 | }\r | |
1278 | \r | |
1279 | pt = (UINT8 *) (&Command);\r | |
1280 | for (i = 0; i < sizeof (FDC_COMMAND_PACKET2); i++) {\r | |
1281 | if (DataOutByte (FdcBlkIoDev, pt++) != EFI_SUCCESS) {\r | |
1282 | return EFI_DEVICE_ERROR;\r | |
1283 | }\r | |
1284 | }\r | |
1285 | \r | |
1286 | MicroSecondDelay (250000);\r | |
1287 | \r | |
1288 | if (SenseIntStatus (FdcBlkIoDev, &sts0, &pcn) != EFI_SUCCESS) {\r | |
1289 | return EFI_DEVICE_ERROR;\r | |
1290 | }\r | |
1291 | \r | |
1292 | if ((sts0 & 0xf0) == 0x20 && pcn == 0) {\r | |
1293 | //\r | |
1294 | // FdcTimer[DevPos].Pcn = 0;\r | |
1295 | //\r | |
1296 | Info->Pcn = 0;\r | |
1297 | //\r | |
1298 | // FdcTimer[DevPos].NeedRecalibrate = FALSE;\r | |
1299 | //\r | |
1300 | Info->NeedRecalibrate = FALSE;\r | |
1301 | return EFI_SUCCESS;\r | |
1302 | } else {\r | |
1303 | Count--;\r | |
1304 | if (Count == 0) {\r | |
1305 | return EFI_DEVICE_ERROR;\r | |
1306 | }\r | |
1307 | }\r | |
1308 | }\r | |
1309 | //\r | |
1310 | // end while\r | |
1311 | //\r | |
1312 | return EFI_SUCCESS;\r | |
1313 | }\r | |
1314 | \r | |
1315 | EFI_STATUS\r | |
1316 | Seek (\r | |
1317 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
1318 | IN OUT PEI_FLOPPY_DEVICE_INFO *Info,\r | |
1319 | IN EFI_PEI_LBA Lba\r | |
1320 | )\r | |
1321 | /*++\r | |
1322 | \r | |
1323 | Routine Description:\r | |
1324 | \r | |
1325 | GC_TODO: Add function description\r | |
1326 | \r | |
1327 | Arguments:\r | |
1328 | \r | |
1329 | FdcBlkIoDev - GC_TODO: add argument description\r | |
1330 | Info - GC_TODO: add argument description\r | |
1331 | Lba - GC_TODO: add argument description\r | |
1332 | \r | |
1333 | Returns:\r | |
1334 | \r | |
1335 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1336 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1337 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1338 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1339 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1340 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1341 | \r | |
1342 | --*/\r | |
1343 | {\r | |
1344 | FDC_SEEK_CMD Command;\r | |
1345 | DISKET_PARA_TABLE *Para;\r | |
1346 | UINT8 EndOfTrack;\r | |
1347 | UINT8 Head;\r | |
1348 | UINT8 Cylinder;\r | |
1349 | UINT8 sts0;\r | |
1350 | UINT8 *pt;\r | |
1351 | UINT8 pcn;\r | |
1352 | UINTN i;\r | |
1353 | UINT8 x;\r | |
1354 | UINT8 DevPos;\r | |
1355 | \r | |
1356 | DevPos = Info->DevPos;\r | |
1357 | if (Info->NeedRecalibrate) {\r | |
1358 | if (Recalibrate (FdcBlkIoDev, Info) != EFI_SUCCESS) {\r | |
1359 | return EFI_DEVICE_ERROR;\r | |
1360 | }\r | |
1361 | //\r | |
1362 | // Recalibrate Success\r | |
1363 | //\r | |
1364 | Info->NeedRecalibrate = FALSE;\r | |
1365 | }\r | |
1366 | \r | |
1367 | Para = (DISKET_PARA_TABLE *) ((UINT8 *) DiskPara + sizeof (DISKET_PARA_TABLE) * Info->Type);\r | |
1368 | EndOfTrack = Para->EOT;\r | |
1369 | //\r | |
1370 | // Calculate cylinder based on Lba and EOT\r | |
1371 | //\r | |
1372 | Cylinder = (UINT8) ((UINTN) Lba / EndOfTrack / 2);\r | |
1373 | \r | |
1374 | //\r | |
1375 | // if the dest cylinder is the present cylinder, unnecessary to do the seek operation\r | |
1376 | //\r | |
1377 | if (Info->Pcn == Cylinder) {\r | |
1378 | return EFI_SUCCESS;\r | |
1379 | }\r | |
1380 | //\r | |
1381 | // Calculate the head : 0 or 1\r | |
1382 | //\r | |
1383 | Head = (UINT8) ((UINTN) Lba / EndOfTrack % 2);\r | |
1384 | \r | |
1385 | ZeroMem (&Command, sizeof (FDC_SEEK_CMD));\r | |
1386 | Command.CommandCode = SEEK_CMD;\r | |
1387 | if (DevPos == 0) {\r | |
1388 | Command.DiskHeadSel = 0;\r | |
1389 | //\r | |
1390 | // 0\r | |
1391 | //\r | |
1392 | } else {\r | |
1393 | Command.DiskHeadSel = 1;\r | |
1394 | //\r | |
1395 | // 1\r | |
1396 | //\r | |
1397 | }\r | |
1398 | \r | |
1399 | Command.DiskHeadSel = (UINT8) (Command.DiskHeadSel | (Head << 2));\r | |
1400 | Command.NewCylinder = Cylinder;\r | |
1401 | \r | |
1402 | pt = (UINT8 *) (&Command);\r | |
1403 | for (i = 0; i < sizeof (FDC_SEEK_CMD); i++) {\r | |
1404 | if (DataOutByte (FdcBlkIoDev, pt++) != EFI_SUCCESS) {\r | |
1405 | return EFI_DEVICE_ERROR;\r | |
1406 | }\r | |
1407 | }\r | |
1408 | \r | |
1409 | MicroSecondDelay (50);\r | |
1410 | \r | |
1411 | //\r | |
1412 | // Calculate waiting time\r | |
1413 | //\r | |
1414 | if (Info->Pcn > Cylinder) {\r | |
1415 | x = (UINT8) (Info->Pcn - Cylinder);\r | |
1416 | } else {\r | |
1417 | x = (UINT8) (Cylinder - Info->Pcn);\r | |
1418 | }\r | |
1419 | \r | |
1420 | MicroSecondDelay ((x + 1) * 4000);\r | |
1421 | \r | |
1422 | if (SenseIntStatus (FdcBlkIoDev, &sts0, &pcn) != EFI_SUCCESS) {\r | |
1423 | return EFI_DEVICE_ERROR;\r | |
1424 | }\r | |
1425 | \r | |
1426 | if ((sts0 & 0xf0) == 0x20) {\r | |
1427 | Info->Pcn = Command.NewCylinder;\r | |
1428 | Info->NeedRecalibrate = FALSE;\r | |
1429 | return EFI_SUCCESS;\r | |
1430 | } else {\r | |
1431 | Info->NeedRecalibrate = TRUE;\r | |
1432 | return EFI_DEVICE_ERROR;\r | |
1433 | }\r | |
1434 | }\r | |
1435 | \r | |
1436 | UINTN\r | |
1437 | GetTransferBlockCount (\r | |
1438 | IN PEI_FLOPPY_DEVICE_INFO *Info,\r | |
1439 | IN EFI_PEI_LBA LBA,\r | |
1440 | IN UINTN NumberOfBlocks\r | |
1441 | )\r | |
1442 | /*++\r | |
1443 | \r | |
1444 | Routine Description:\r | |
1445 | \r | |
1446 | GC_TODO: Add function description\r | |
1447 | \r | |
1448 | Arguments:\r | |
1449 | \r | |
1450 | Info - GC_TODO: add argument description\r | |
1451 | LBA - GC_TODO: add argument description\r | |
1452 | NumberOfBlocks - GC_TODO: add argument description\r | |
1453 | \r | |
1454 | Returns:\r | |
1455 | \r | |
1456 | GC_TODO: add return values\r | |
1457 | \r | |
1458 | --*/\r | |
1459 | {\r | |
1460 | DISKET_PARA_TABLE *Para;\r | |
1461 | UINT8 EndOfTrack;\r | |
1462 | UINT8 Head;\r | |
1463 | UINT8 SectorsInTrack;\r | |
1464 | \r | |
1465 | Para = (DISKET_PARA_TABLE *) ((UINT8 *) DiskPara + sizeof (DISKET_PARA_TABLE) * Info->Type);\r | |
1466 | EndOfTrack = Para->EOT;\r | |
1467 | Head = (UINT8) ((UINTN) LBA / EndOfTrack % 2);\r | |
1468 | \r | |
1469 | SectorsInTrack = (UINT8) (EndOfTrack * (2 - Head) - (UINT8) ((UINTN) LBA % EndOfTrack));\r | |
1470 | if (SectorsInTrack < NumberOfBlocks) {\r | |
1471 | return SectorsInTrack;\r | |
1472 | } else {\r | |
1473 | return NumberOfBlocks;\r | |
1474 | }\r | |
1475 | }\r | |
1476 | \r | |
1477 | EFI_STATUS\r | |
1478 | ReadWriteDataSector (\r | |
1479 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
1480 | IN OUT PEI_FLOPPY_DEVICE_INFO *Info,\r | |
1481 | IN VOID *Buffer,\r | |
1482 | IN EFI_PEI_LBA Lba,\r | |
1483 | IN UINTN NumberOfBlocks,\r | |
1484 | IN BOOLEAN Read\r | |
1485 | )\r | |
1486 | /*++\r | |
1487 | \r | |
1488 | Routine Description:\r | |
1489 | \r | |
1490 | GC_TODO: Add function description\r | |
1491 | \r | |
1492 | Arguments:\r | |
1493 | \r | |
1494 | FdcBlkIoDev - GC_TODO: add argument description\r | |
1495 | Info - GC_TODO: add argument description\r | |
1496 | Buffer - GC_TODO: add argument description\r | |
1497 | Lba - GC_TODO: add argument description\r | |
1498 | NumberOfBlocks - GC_TODO: add argument description\r | |
1499 | Read - GC_TODO: add argument description\r | |
1500 | \r | |
1501 | Returns:\r | |
1502 | \r | |
1503 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1504 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1505 | EFI_TIMEOUT - GC_TODO: Add description for return value\r | |
1506 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1507 | \r | |
1508 | --*/\r | |
1509 | {\r | |
1510 | EFI_STATUS Status;\r | |
1511 | FDC_COMMAND_PACKET1 Command;\r | |
1512 | FDC_RESULT_PACKET Result;\r | |
1513 | UINTN i;\r | |
1514 | UINTN Times;\r | |
1515 | UINT8 *pt;\r | |
1516 | //\r | |
1517 | // UINT8 Temp;\r | |
1518 | //\r | |
1519 | Status = Seek (FdcBlkIoDev, Info, Lba);\r | |
1520 | if (Status != EFI_SUCCESS) {\r | |
1521 | return EFI_DEVICE_ERROR;\r | |
1522 | }\r | |
1523 | //\r | |
1524 | // Set up DMA\r | |
1525 | //\r | |
1526 | SetDMA (FdcBlkIoDev, Buffer, NumberOfBlocks, Read);\r | |
1527 | \r | |
1528 | //\r | |
1529 | // Allocate Read or Write command packet\r | |
1530 | //\r | |
1531 | ZeroMem (&Command, sizeof (FDC_COMMAND_PACKET1));\r | |
1532 | if (Read == READ) {\r | |
1533 | Command.CommandCode = READ_DATA_CMD | CMD_MT | CMD_MFM | CMD_SK;\r | |
1534 | }\r | |
1535 | //\r | |
1536 | // else\r | |
1537 | // Command.CommandCode = WRITE_DATA_CMD | CMD_MT | CMD_MFM;\r | |
1538 | //\r | |
1539 | FillPara (Info, Lba, &Command);\r | |
1540 | \r | |
1541 | //\r | |
1542 | // Write command bytes to FDC\r | |
1543 | //\r | |
1544 | pt = (UINT8 *) (&Command);\r | |
1545 | for (i = 0; i < sizeof (FDC_COMMAND_PACKET1); i++) {\r | |
1546 | if (DataOutByte (FdcBlkIoDev, pt++) != EFI_SUCCESS) {\r | |
1547 | return EFI_DEVICE_ERROR;\r | |
1548 | }\r | |
1549 | }\r | |
1550 | \r | |
1551 | //\r | |
1552 | // wait for some time\r | |
1553 | //\r | |
1554 | Times = (STALL_1_SECOND / 50) + 1;\r | |
1555 | do {\r | |
1556 | if ((IoRead8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_MSR)) & 0xc0) == 0xc0) {\r | |
1557 | break;\r | |
1558 | }\r | |
1559 | \r | |
1560 | MicroSecondDelay (50);\r | |
1561 | } while (--Times);\r | |
1562 | \r | |
1563 | if (Times == 0) {\r | |
1564 | return EFI_TIMEOUT;\r | |
1565 | }\r | |
1566 | //\r | |
1567 | // Read result bytes from FDC\r | |
1568 | //\r | |
1569 | pt = (UINT8 *) (&Result);\r | |
1570 | for (i = 0; i < sizeof (FDC_RESULT_PACKET); i++) {\r | |
1571 | if (DataInByte (FdcBlkIoDev, pt++) != EFI_SUCCESS) {\r | |
1572 | return EFI_DEVICE_ERROR;\r | |
1573 | }\r | |
1574 | }\r | |
1575 | \r | |
1576 | return CheckResult (&Result, Info);\r | |
1577 | }\r | |
1578 | \r | |
1579 | EFI_STATUS\r | |
1580 | CheckResult (\r | |
1581 | IN FDC_RESULT_PACKET *Result,\r | |
1582 | IN OUT PEI_FLOPPY_DEVICE_INFO *Info\r | |
1583 | )\r | |
1584 | /*++\r | |
1585 | \r | |
1586 | Routine Description:\r | |
1587 | \r | |
1588 | GC_TODO: Add function description\r | |
1589 | \r | |
1590 | Arguments:\r | |
1591 | \r | |
1592 | Result - GC_TODO: add argument description\r | |
1593 | Info - GC_TODO: add argument description\r | |
1594 | \r | |
1595 | Returns:\r | |
1596 | \r | |
1597 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1598 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1599 | EFI_DEVICE_ERROR - GC_TODO: Add description for return value\r | |
1600 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1601 | \r | |
1602 | --*/\r | |
1603 | {\r | |
1604 | if ((Result->Status0 & STS0_IC) != IC_NT) {\r | |
1605 | if ((Result->Status0 & STS0_SE) == 0x20) {\r | |
1606 | //\r | |
1607 | // seek error\r | |
1608 | //\r | |
1609 | Info->NeedRecalibrate = TRUE;\r | |
1610 | }\r | |
1611 | \r | |
1612 | Info->NeedRecalibrate = TRUE;\r | |
1613 | return EFI_DEVICE_ERROR;\r | |
1614 | }\r | |
1615 | //\r | |
1616 | // Check Status Register1\r | |
1617 | //\r | |
1618 | if (Result->Status1 & (STS1_EN | STS1_DE | STS1_OR | STS1_ND | STS1_NW | STS1_MA)) {\r | |
1619 | Info->NeedRecalibrate = TRUE;\r | |
1620 | return EFI_DEVICE_ERROR;\r | |
1621 | }\r | |
1622 | //\r | |
1623 | // Check Status Register2\r | |
1624 | //\r | |
1625 | if (Result->Status2 & (STS2_CM | STS2_DD | STS2_WC | STS2_BC | STS2_MD)) {\r | |
1626 | Info->NeedRecalibrate = TRUE;\r | |
1627 | return EFI_DEVICE_ERROR;\r | |
1628 | }\r | |
1629 | \r | |
1630 | return EFI_SUCCESS;\r | |
1631 | }\r | |
1632 | \r | |
1633 | VOID\r | |
1634 | FillPara (\r | |
1635 | IN PEI_FLOPPY_DEVICE_INFO *Info,\r | |
1636 | IN EFI_PEI_LBA Lba,\r | |
1637 | IN FDC_COMMAND_PACKET1 *Command\r | |
1638 | )\r | |
1639 | /*++\r | |
1640 | \r | |
1641 | Routine Description:\r | |
1642 | \r | |
1643 | GC_TODO: Add function description\r | |
1644 | \r | |
1645 | Arguments:\r | |
1646 | \r | |
1647 | Info - GC_TODO: add argument description\r | |
1648 | Lba - GC_TODO: add argument description\r | |
1649 | Command - GC_TODO: add argument description\r | |
1650 | \r | |
1651 | Returns:\r | |
1652 | \r | |
1653 | GC_TODO: add return values\r | |
1654 | \r | |
1655 | --*/\r | |
1656 | {\r | |
1657 | DISKET_PARA_TABLE *Para;\r | |
1658 | UINT8 EndOfTrack;\r | |
1659 | UINT8 DevPos;\r | |
1660 | \r | |
1661 | DevPos = Info->DevPos;\r | |
1662 | Para = (DISKET_PARA_TABLE *) ((UINT8 *) DiskPara + sizeof (DISKET_PARA_TABLE) * Info->Type);\r | |
1663 | EndOfTrack = Para->EOT;\r | |
1664 | \r | |
1665 | if (DevPos == 0) {\r | |
1666 | Command->DiskHeadSel = 0;\r | |
1667 | } else {\r | |
1668 | Command->DiskHeadSel = 1;\r | |
1669 | }\r | |
1670 | \r | |
1671 | Command->Cylinder = (UINT8) ((UINTN) Lba / EndOfTrack / 2);\r | |
1672 | Command->Head = (UINT8) ((UINTN) Lba / EndOfTrack % 2);\r | |
1673 | Command->Sector = (UINT8) ((UINT8) ((UINTN) Lba % EndOfTrack) + 1);\r | |
1674 | Command->DiskHeadSel = (UINT8) (Command->DiskHeadSel | (Command->Head << 2));\r | |
1675 | Command->Number = Para->Number;\r | |
1676 | Command->EndOfTrack = Para->EOT;\r | |
1677 | Command->GapLength = Para->GPL;\r | |
1678 | Command->DataLength = Para->DTL;\r | |
1679 | }\r | |
1680 | \r | |
1681 | EFI_STATUS\r | |
1682 | Setup (\r | |
1683 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
1684 | IN UINT8 DevPos\r | |
1685 | )\r | |
1686 | /*++\r | |
1687 | \r | |
1688 | Routine Description:\r | |
1689 | \r | |
1690 | GC_TODO: Add function description\r | |
1691 | \r | |
1692 | Arguments:\r | |
1693 | \r | |
1694 | FdcBlkIoDev - GC_TODO: add argument description\r | |
1695 | DevPos - GC_TODO: add argument description\r | |
1696 | \r | |
1697 | Returns:\r | |
1698 | \r | |
1699 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1700 | \r | |
1701 | --*/\r | |
1702 | {\r | |
1703 | IoWrite8 ((UINT16) (FdcBaseAddress + FDC_REGISTER_CCR), 0x0);\r | |
1704 | \r | |
1705 | MicroSecondDelay (100);\r | |
1706 | \r | |
1707 | Specify (FdcBlkIoDev);\r | |
1708 | return EFI_SUCCESS;\r | |
1709 | }\r | |
1710 | \r | |
1711 | EFI_STATUS\r | |
1712 | SetDMA (\r | |
1713 | IN FDC_BLK_IO_DEV *FdcBlkIoDev,\r | |
1714 | IN VOID *Buffer,\r | |
1715 | IN UINTN NumberOfBlocks,\r | |
1716 | IN BOOLEAN Read\r | |
1717 | )\r | |
1718 | /*++\r | |
1719 | \r | |
1720 | Routine Description:\r | |
1721 | \r | |
1722 | GC_TODO: Add function description\r | |
1723 | \r | |
1724 | Arguments:\r | |
1725 | \r | |
1726 | FdcBlkIoDev - GC_TODO: add argument description\r | |
1727 | Buffer - GC_TODO: add argument description\r | |
1728 | NumberOfBlocks - GC_TODO: add argument description\r | |
1729 | Read - GC_TODO: add argument description\r | |
1730 | \r | |
1731 | Returns:\r | |
1732 | \r | |
1733 | EFI_SUCCESS - GC_TODO: Add description for return value\r | |
1734 | \r | |
1735 | --*/\r | |
1736 | {\r | |
1737 | UINT8 data;\r | |
1738 | UINTN count;\r | |
1739 | \r | |
1740 | //\r | |
1741 | // mask DMA channel 2;\r | |
1742 | //\r | |
1743 | IoWrite8 (R_8237_DMA_WRSMSK_CH0_3, B_8237_DMA_WRSMSK_CMS | 2);\r | |
1744 | \r | |
1745 | //\r | |
1746 | // clear first/last flip flop\r | |
1747 | //\r | |
1748 | IoWrite8 (R_8237_DMA_CBPR_CH0_3, B_8237_DMA_WRSMSK_CMS | 2);\r | |
1749 | \r | |
1750 | //\r | |
1751 | // set mode\r | |
1752 | //\r | |
1753 | if (Read == READ) {\r | |
1754 | IoWrite8 (R_8237_DMA_CHMODE_CH0_3, V_8237_DMA_CHMODE_SINGLE | V_8237_DMA_CHMODE_IO2MEM | 2);\r | |
1755 | } else {\r | |
1756 | IoWrite8 (R_8237_DMA_CHMODE_CH0_3, V_8237_DMA_CHMODE_SINGLE | V_8237_DMA_CHMODE_MEM2IO | 2);\r | |
1757 | }\r | |
1758 | //\r | |
1759 | // set base address and page register\r | |
1760 | //\r | |
1761 | data = (UINT8) (UINTN) Buffer;\r | |
1762 | IoWrite8 (R_8237_DMA_BASE_CA_CH2, data);\r | |
1763 | data = (UINT8) ((UINTN) Buffer >> 8);\r | |
1764 | IoWrite8 (R_8237_DMA_BASE_CA_CH2, data);\r | |
1765 | \r | |
1766 | data = (UINT8) ((UINTN) Buffer >> 16);\r | |
1767 | IoWrite8 (R_8237_DMA_MEM_LP_CH2, data);\r | |
1768 | \r | |
1769 | //\r | |
1770 | // set count register\r | |
1771 | //\r | |
1772 | count = 512 * NumberOfBlocks - 1;\r | |
1773 | data = (UINT8) (count & 0xff);\r | |
1774 | IoWrite8 (R_8237_DMA_BASE_CC_CH2, data);\r | |
1775 | data = (UINT8) (count >> 8);\r | |
1776 | IoWrite8 (R_8237_DMA_BASE_CC_CH2, data);\r | |
1777 | \r | |
1778 | //\r | |
1779 | // clear channel 2 mask\r | |
1780 | //\r | |
1781 | IoWrite8 (R_8237_DMA_WRSMSK_CH0_3, 0x02);\r | |
1782 | \r | |
1783 | return EFI_SUCCESS;\r | |
1784 | }\r | |
1785 | \r |