]>
Commit | Line | Data |
---|---|---|
efd82c57 | 1 | /** @file\r |
2 | The driver wrappers BlockMmio protocol instances to produce\r | |
3 | Block I/O Protocol instances.\r | |
4 | \r | |
8d531995 | 5 | Copyright (c) 2007 - 2012, Intel Corporation. All rights reserved.<BR>\r |
56d7640a | 6 | This program and the accompanying materials\r |
efd82c57 | 7 | are licensed and made available under the terms and conditions of the BSD License\r |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include "BlockIo.h"\r | |
17 | \r | |
18 | EFI_DRIVER_BINDING_PROTOCOL gBlockIoDriverBinding = {\r | |
19 | BlockIoDriverBindingSupported,\r | |
20 | BlockIoDriverBindingStart,\r | |
21 | BlockIoDriverBindingStop,\r | |
22 | 0x11,\r | |
23 | NULL,\r | |
24 | NULL\r | |
25 | };\r | |
26 | \r | |
27 | /**\r | |
28 | Reset the block device.\r | |
29 | \r | |
30 | This function implements EFI_BLOCK_IO_PROTOCOL.Reset(). \r | |
31 | It resets the block device hardware.\r | |
32 | ExtendedVerification is ignored in this implementation.\r | |
33 | \r | |
34 | @param This Indicates a pointer to the calling context.\r | |
35 | @param ExtendedVerification Indicates that the driver may perform a more exhaustive\r | |
36 | verification operation of the device during reset.\r | |
37 | \r | |
38 | @retval EFI_SUCCESS The block device was reset.\r | |
39 | @retval EFI_DEVICE_ERROR The block device is not functioning correctly and could not be reset.\r | |
40 | \r | |
41 | **/\r | |
42 | EFI_STATUS\r | |
43 | EFIAPI\r | |
44 | BlockIoReset (\r | |
45 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
46 | IN BOOLEAN ExtendedVerification\r | |
47 | )\r | |
48 | {\r | |
49 | return EFI_SUCCESS;\r | |
50 | }\r | |
51 | \r | |
52 | /**\r | |
53 | Reads the requested number of blocks from the device.\r | |
54 | \r | |
55 | This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks(). \r | |
56 | It reads the requested number of blocks from the device.\r | |
57 | All the blocks are read, or an error is returned.\r | |
58 | \r | |
59 | @param This Indicates a pointer to the calling context.\r | |
60 | @param ReadData If TRUE then read data. If FALSE then write data.\r | |
61 | @param MediaId The media ID that the read request is for.\r | |
62 | @param Lba The starting logical block address to read from on the device.\r | |
63 | @param BufferSize The size of the Buffer in bytes.\r | |
64 | This must be a multiple of the intrinsic block size of the device.\r | |
65 | @param Buffer A pointer to the destination buffer for the data. The caller is\r | |
66 | responsible for either having implicit or explicit ownership of the buffer.\r | |
67 | \r | |
68 | @retval EFI_SUCCESS The data was read correctly from the device.\r | |
69 | @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.\r | |
70 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
71 | @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r | |
72 | @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.\r | |
73 | @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,\r | |
74 | or the buffer is not on proper alignment.\r | |
75 | \r | |
76 | **/\r | |
77 | EFI_STATUS\r | |
78 | EFIAPI\r | |
79 | ReadOrWriteBlocks (\r | |
80 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
81 | IN BOOLEAN ReadData,\r | |
82 | IN UINT32 MediaId,\r | |
83 | IN EFI_LBA Lba,\r | |
84 | IN UINTN BufferSize,\r | |
85 | OUT VOID *Buffer\r | |
86 | )\r | |
87 | {\r | |
88 | EFI_STATUS Status;\r | |
89 | BLOCK_MMIO_TO_BLOCK_IO_DEVICE *Private;\r | |
90 | UINTN TotalBlock;\r | |
91 | EFI_BLOCK_IO_MEDIA *Media;\r | |
92 | UINT64 Address;\r | |
93 | UINTN Count;\r | |
94 | EFI_CPU_IO_PROTOCOL_IO_MEM CpuAccessFunction;\r | |
95 | \r | |
96 | //\r | |
97 | // First, validate the parameters\r | |
98 | //\r | |
99 | if ((Buffer == NULL) || (BufferSize == 0)) {\r | |
100 | return EFI_INVALID_PARAMETER;\r | |
101 | }\r | |
102 | \r | |
103 | //\r | |
104 | // Get private data structure\r | |
105 | //\r | |
106 | Private = PRIVATE_FROM_BLOCK_IO (This);\r | |
107 | Media = Private->BlockMmio->Media;\r | |
108 | \r | |
109 | //\r | |
110 | // BufferSize must be a multiple of the intrinsic block size of the device.\r | |
111 | //\r | |
f46d494a | 112 | if (ModU64x32 (BufferSize, Media->BlockSize) != 0) {\r |
efd82c57 | 113 | return EFI_BAD_BUFFER_SIZE;\r |
114 | }\r | |
115 | \r | |
f46d494a | 116 | TotalBlock = (UINTN) DivU64x32 (BufferSize, Media->BlockSize);\r |
efd82c57 | 117 | \r |
118 | //\r | |
119 | // Make sure the range to read is valid.\r | |
120 | //\r | |
121 | if (Lba + TotalBlock - 1 > Media->LastBlock) {\r | |
122 | return EFI_INVALID_PARAMETER;\r | |
123 | }\r | |
124 | \r | |
125 | if (!(Media->MediaPresent)) {\r | |
126 | return EFI_NO_MEDIA;\r | |
127 | }\r | |
128 | \r | |
129 | if (MediaId != Media->MediaId) {\r | |
130 | return EFI_MEDIA_CHANGED;\r | |
131 | }\r | |
132 | \r | |
133 | Address = Private->BlockMmio->BaseAddress;\r | |
f46d494a | 134 | Address += MultU64x32 (Lba, Media->BlockSize);\r |
efd82c57 | 135 | \r |
f46d494a | 136 | Count = BufferSize >> 3;\r |
efd82c57 | 137 | \r |
138 | if (ReadData) {\r | |
139 | CpuAccessFunction = Private->CpuIo->Mem.Read;\r | |
140 | } else {\r | |
141 | CpuAccessFunction = Private->CpuIo->Mem.Write;\r | |
142 | }\r | |
143 | \r | |
144 | Status = (CpuAccessFunction) (\r | |
145 | Private->CpuIo,\r | |
146 | EfiCpuIoWidthUint64,\r | |
147 | Address,\r | |
148 | Count,\r | |
149 | Buffer\r | |
150 | );\r | |
151 | \r | |
152 | return Status;\r | |
153 | }\r | |
154 | \r | |
155 | \r | |
156 | /**\r | |
157 | Reads the requested number of blocks from the device.\r | |
158 | \r | |
159 | This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks(). \r | |
160 | It reads the requested number of blocks from the device.\r | |
161 | All the blocks are read, or an error is returned.\r | |
162 | \r | |
163 | @param This Indicates a pointer to the calling context.\r | |
164 | @param MediaId The media ID that the read request is for.\r | |
165 | @param Lba The starting logical block address to read from on the device.\r | |
166 | @param BufferSize The size of the Buffer in bytes.\r | |
167 | This must be a multiple of the intrinsic block size of the device.\r | |
168 | @param Buffer A pointer to the destination buffer for the data. The caller is\r | |
169 | responsible for either having implicit or explicit ownership of the buffer.\r | |
170 | \r | |
171 | @retval EFI_SUCCESS The data was read correctly from the device.\r | |
172 | @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.\r | |
173 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
174 | @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r | |
175 | @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.\r | |
176 | @retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,\r | |
177 | or the buffer is not on proper alignment.\r | |
178 | \r | |
179 | **/\r | |
180 | EFI_STATUS\r | |
181 | EFIAPI\r | |
182 | BlockIoReadBlocks (\r | |
183 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
184 | IN UINT32 MediaId,\r | |
185 | IN EFI_LBA Lba,\r | |
186 | IN UINTN BufferSize,\r | |
187 | OUT VOID *Buffer\r | |
188 | )\r | |
189 | {\r | |
6394c35a LE |
190 | DEBUG ((EFI_D_INFO, "BlockIo (MMIO) ReadBlocks: lba=0x%Lx, size=0x%Lx\n",\r |
191 | Lba, (UINT64)BufferSize));\r | |
efd82c57 | 192 | return ReadOrWriteBlocks (\r |
193 | This,\r | |
194 | TRUE,\r | |
195 | MediaId,\r | |
196 | Lba,\r | |
197 | BufferSize,\r | |
198 | Buffer\r | |
199 | );\r | |
200 | }\r | |
201 | \r | |
202 | \r | |
203 | /**\r | |
204 | Writes a specified number of blocks to the device.\r | |
205 | \r | |
206 | This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks(). \r | |
207 | It writes a specified number of blocks to the device.\r | |
208 | All blocks are written, or an error is returned.\r | |
209 | \r | |
210 | @param This Indicates a pointer to the calling context.\r | |
211 | @param MediaId The media ID that the write request is for.\r | |
212 | @param Lba The starting logical block address to be written.\r | |
213 | @param BufferSize The size of the Buffer in bytes.\r | |
214 | This must be a multiple of the intrinsic block size of the device.\r | |
215 | @param Buffer Pointer to the source buffer for the data.\r | |
216 | \r | |
217 | @retval EFI_SUCCESS The data were written correctly to the device.\r | |
218 | @retval EFI_WRITE_PROTECTED The device cannot be written to.\r | |
219 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
220 | @retval EFI_MEDIA_CHANGED The MediaId is not for the current media.\r | |
221 | @retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the write operation.\r | |
222 | @retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic\r | |
223 | block size of the device.\r | |
224 | @retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,\r | |
225 | or the buffer is not on proper alignment.\r | |
226 | \r | |
227 | **/\r | |
228 | EFI_STATUS\r | |
229 | EFIAPI\r | |
230 | BlockIoWriteBlocks (\r | |
231 | IN EFI_BLOCK_IO_PROTOCOL *This,\r | |
232 | IN UINT32 MediaId,\r | |
233 | IN EFI_LBA Lba,\r | |
234 | IN UINTN BufferSize,\r | |
235 | IN VOID *Buffer\r | |
236 | )\r | |
237 | {\r | |
6394c35a LE |
238 | DEBUG ((EFI_D_INFO, "BlockIo (MMIO) WriteBlocks: lba=0x%Lx, size=0x%Lx\n",\r |
239 | Lba, (UINT64)BufferSize));\r | |
efd82c57 | 240 | return ReadOrWriteBlocks (\r |
241 | This,\r | |
242 | FALSE,\r | |
243 | MediaId,\r | |
244 | Lba,\r | |
245 | BufferSize,\r | |
246 | Buffer\r | |
247 | );\r | |
248 | }\r | |
249 | \r | |
250 | /**\r | |
251 | Flushes all modified data to a physical block device.\r | |
252 | \r | |
253 | @param This Indicates a pointer to the calling context.\r | |
254 | \r | |
255 | @retval EFI_SUCCESS All outstanding data were written correctly to the device.\r | |
256 | @retval EFI_DEVICE_ERROR The device reported an error while attempting to write data.\r | |
257 | @retval EFI_NO_MEDIA There is no media in the device.\r | |
258 | \r | |
259 | **/\r | |
260 | EFI_STATUS\r | |
261 | EFIAPI\r | |
262 | BlockIoFlushBlocks (\r | |
263 | IN EFI_BLOCK_IO_PROTOCOL *This\r | |
264 | )\r | |
265 | {\r | |
266 | return EFI_SUCCESS;\r | |
267 | }\r | |
268 | \r | |
269 | \r | |
270 | /**\r | |
271 | Initialize data for device that does not support multiple LUNSs.\r | |
272 | \r | |
273 | @param This The Driver Binding Protocol instance.\r | |
274 | @param Controller The device to initialize.\r | |
275 | @param BlockMmio Pointer to USB_MASS_TRANSPORT.\r | |
276 | @param Context Parameter for USB_MASS_DEVICE.Context.\r | |
277 | \r | |
278 | @retval EFI_SUCCESS Initialization succeeds.\r | |
279 | @retval Other Initialization fails.\r | |
280 | \r | |
281 | **/\r | |
282 | EFI_STATUS\r | |
283 | BlockIoInit (\r | |
284 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
285 | IN EFI_HANDLE Controller\r | |
286 | )\r | |
287 | {\r | |
288 | EFI_STATUS Status;\r | |
289 | BLOCK_MMIO_TO_BLOCK_IO_DEVICE *Private;\r | |
290 | BLOCK_MMIO_PROTOCOL *BlockMmio;\r | |
291 | \r | |
8d531995 | 292 | Private = (BLOCK_MMIO_TO_BLOCK_IO_DEVICE*) AllocateZeroPool (sizeof (*Private));\r |
efd82c57 | 293 | ASSERT (Private != NULL);\r |
294 | \r | |
295 | Status = gBS->LocateProtocol (\r | |
296 | &gEfiCpuIo2ProtocolGuid,\r | |
297 | NULL,\r | |
298 | (VOID **) &(Private->CpuIo)\r | |
299 | );\r | |
300 | ASSERT_EFI_ERROR (Status);\r | |
301 | \r | |
302 | Status = gBS->OpenProtocol (\r | |
303 | Controller,\r | |
304 | &gBlockMmioProtocolGuid,\r | |
305 | (VOID **) &BlockMmio,\r | |
306 | This->DriverBindingHandle,\r | |
307 | Controller,\r | |
308 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
309 | );\r | |
310 | if (EFI_ERROR (Status)) {\r | |
311 | DEBUG ((EFI_D_ERROR, "BlockIoInit: OpenBlockMmioProtocol By Driver (%r)\n", Status));\r | |
312 | goto ON_ERROR;\r | |
313 | }\r | |
6394c35a | 314 | DEBUG ((EFI_D_INFO, "BlockMmio: %p\n", BlockMmio));\r |
efd82c57 | 315 | DEBUG ((EFI_D_INFO, "BlockMmio->Media->LastBlock: 0x%lx\n", BlockMmio->Media->LastBlock));\r |
316 | \r | |
317 | Private->Signature = BLOCK_MMIO_TO_BLOCK_IO_SIGNATURE;\r | |
318 | Private->Controller = Controller;\r | |
319 | Private->BlockMmio = BlockMmio;\r | |
320 | Private->BlockIo.Media = BlockMmio->Media;\r | |
321 | Private->BlockIo.Reset = BlockIoReset;\r | |
322 | Private->BlockIo.ReadBlocks = BlockIoReadBlocks;\r | |
323 | Private->BlockIo.WriteBlocks = BlockIoWriteBlocks;\r | |
324 | Private->BlockIo.FlushBlocks = BlockIoFlushBlocks;\r | |
325 | \r | |
326 | DEBUG ((EFI_D_INFO, "Private->BlockIo.Media->LastBlock: 0x%lx\n", Private->BlockIo.Media->LastBlock));\r | |
327 | \r | |
328 | Status = gBS->InstallProtocolInterface (\r | |
329 | &Controller,\r | |
330 | &gEfiBlockIoProtocolGuid,\r | |
331 | EFI_NATIVE_INTERFACE,\r | |
332 | &Private->BlockIo\r | |
333 | );\r | |
334 | if (EFI_ERROR (Status)) {\r | |
335 | goto ON_ERROR;\r | |
336 | }\r | |
337 | \r | |
338 | return EFI_SUCCESS;\r | |
339 | \r | |
340 | ON_ERROR:\r | |
341 | if (Private != NULL) {\r | |
342 | FreePool (Private);\r | |
343 | }\r | |
344 | if (BlockMmio != NULL) {\r | |
345 | gBS->CloseProtocol (\r | |
346 | Controller,\r | |
347 | &gBlockMmioProtocolGuid,\r | |
348 | This->DriverBindingHandle,\r | |
349 | Controller\r | |
350 | );\r | |
351 | }\r | |
352 | return Status; \r | |
353 | }\r | |
354 | \r | |
355 | \r | |
356 | /**\r | |
357 | Check whether the controller is a supported USB mass storage.\r | |
358 | \r | |
359 | @param This The USB mass storage driver binding protocol.\r | |
360 | @param Controller The controller handle to check.\r | |
361 | @param RemainingDevicePath The remaining device path.\r | |
362 | \r | |
363 | @retval EFI_SUCCESS The driver supports this controller.\r | |
364 | @retval other This device isn't supported.\r | |
365 | \r | |
366 | **/\r | |
367 | EFI_STATUS\r | |
368 | EFIAPI\r | |
369 | BlockIoDriverBindingSupported (\r | |
370 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
371 | IN EFI_HANDLE Controller,\r | |
372 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
373 | )\r | |
374 | {\r | |
375 | EFI_STATUS Status;\r | |
376 | BLOCK_MMIO_PROTOCOL *BlockMmio;\r | |
377 | \r | |
378 | Status = gBS->OpenProtocol (\r | |
379 | Controller,\r | |
380 | &gBlockMmioProtocolGuid,\r | |
381 | (VOID **) &BlockMmio,\r | |
382 | This->DriverBindingHandle,\r | |
383 | Controller,\r | |
384 | EFI_OPEN_PROTOCOL_BY_DRIVER\r | |
385 | );\r | |
386 | if (EFI_ERROR (Status)) {\r | |
387 | return Status;\r | |
388 | }\r | |
389 | \r | |
390 | gBS->CloseProtocol (\r | |
391 | Controller,\r | |
392 | &gBlockMmioProtocolGuid,\r | |
393 | This->DriverBindingHandle,\r | |
394 | Controller\r | |
395 | );\r | |
396 | \r | |
397 | return Status;\r | |
398 | }\r | |
399 | \r | |
400 | /**\r | |
401 | Starts the USB mass storage device with this driver.\r | |
402 | \r | |
403 | This function consumes USB I/O Portocol, intializes USB mass storage device,\r | |
404 | installs Block I/O Protocol, and submits Asynchronous Interrupt\r | |
405 | Transfer to manage the USB mass storage device.\r | |
406 | \r | |
407 | @param This The USB mass storage driver binding protocol.\r | |
408 | @param Controller The USB mass storage device to start on\r | |
409 | @param RemainingDevicePath The remaining device path.\r | |
410 | \r | |
411 | @retval EFI_SUCCESS This driver supports this device.\r | |
412 | @retval EFI_UNSUPPORTED This driver does not support this device.\r | |
413 | @retval EFI_DEVICE_ERROR This driver cannot be started due to device Error.\r | |
414 | @retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.\r | |
415 | @retval EFI_ALREADY_STARTED This driver has been started.\r | |
416 | \r | |
417 | **/\r | |
418 | EFI_STATUS\r | |
419 | EFIAPI\r | |
420 | BlockIoDriverBindingStart (\r | |
421 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
422 | IN EFI_HANDLE Controller,\r | |
423 | IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r | |
424 | )\r | |
425 | {\r | |
426 | EFI_STATUS Status;\r | |
427 | \r | |
428 | Status = BlockIoInit (This, Controller);\r | |
429 | if (EFI_ERROR (Status)) {\r | |
430 | DEBUG ((EFI_D_ERROR, "BlockIoDriverBindingStart: BlockIoInit (%r)\n", Status));\r | |
431 | return Status;\r | |
432 | }\r | |
433 | \r | |
434 | DEBUG ((EFI_D_INIT, "BlockIoDriverBindingStart: Successfully started\n"));\r | |
435 | return Status;\r | |
436 | }\r | |
437 | \r | |
438 | \r | |
439 | /**\r | |
440 | Stop controlling the device.\r | |
441 | \r | |
442 | @param This The USB mass storage driver binding\r | |
443 | @param Controller The device controller controlled by the driver.\r | |
444 | @param NumberOfChildren The number of children of this device\r | |
445 | @param ChildHandleBuffer The buffer of children handle.\r | |
446 | \r | |
447 | @retval EFI_SUCCESS The driver stopped from controlling the device.\r | |
448 | @retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.\r | |
449 | @retval EFI_UNSUPPORTED Block I/O Protocol is not installed on Controller.\r | |
450 | @retval Others Failed to stop the driver\r | |
451 | \r | |
452 | **/\r | |
453 | EFI_STATUS\r | |
454 | EFIAPI\r | |
455 | BlockIoDriverBindingStop (\r | |
456 | IN EFI_DRIVER_BINDING_PROTOCOL *This,\r | |
457 | IN EFI_HANDLE Controller,\r | |
458 | IN UINTN NumberOfChildren,\r | |
459 | IN EFI_HANDLE *ChildHandleBuffer\r | |
460 | )\r | |
461 | {\r | |
462 | EFI_STATUS Status;\r | |
463 | BLOCK_MMIO_TO_BLOCK_IO_DEVICE *Private;\r | |
464 | \r | |
465 | Private = PRIVATE_FROM_BLOCK_IO (This);\r | |
466 | \r | |
467 | //\r | |
468 | // Uninstall Block I/O protocol from the device handle,\r | |
469 | // then call the transport protocol to stop itself.\r | |
470 | //\r | |
471 | Status = gBS->UninstallProtocolInterface (\r | |
472 | Controller,\r | |
473 | &gEfiBlockIoProtocolGuid,\r | |
474 | &Private->BlockIo\r | |
475 | );\r | |
476 | if (EFI_ERROR (Status)) {\r | |
477 | return Status;\r | |
478 | }\r | |
479 | \r | |
480 | gBS->CloseProtocol (\r | |
481 | Controller,\r | |
482 | &gBlockMmioProtocolGuid,\r | |
483 | This->DriverBindingHandle,\r | |
484 | Controller\r | |
485 | );\r | |
486 | \r | |
487 | FreePool (Private);\r | |
488 | \r | |
489 | DEBUG ((EFI_D_INFO, "Successfully stopped BlockIo on BlockMmio\n"));\r | |
490 | return EFI_SUCCESS;\r | |
491 | }\r | |
492 | \r | |
493 | /**\r | |
494 | Entrypoint of Block MMIO to Block IO Driver.\r | |
495 | \r | |
496 | This function is the entrypoint of USB Mass Storage Driver. It installs Driver Binding\r | |
497 | Protocol together with Component Name Protocols.\r | |
498 | \r | |
499 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
500 | @param SystemTable A pointer to the EFI System Table.\r | |
501 | \r | |
502 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
503 | \r | |
504 | **/\r | |
505 | EFI_STATUS\r | |
506 | EFIAPI\r | |
507 | BlockMmioToBlockIoEntryPoint (\r | |
508 | IN EFI_HANDLE ImageHandle,\r | |
509 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
510 | )\r | |
511 | {\r | |
512 | EFI_STATUS Status;\r | |
513 | \r | |
514 | //\r | |
515 | // Install driver binding protocol\r | |
516 | //\r | |
517 | Status = EfiLibInstallDriverBindingComponentName2 (\r | |
518 | ImageHandle,\r | |
519 | SystemTable,\r | |
520 | &gBlockIoDriverBinding,\r | |
521 | ImageHandle,\r | |
522 | &gBlockMmioToBlockIoComponentName,\r | |
523 | &gBlockMmioToBlockIoComponentName2\r | |
524 | );\r | |
525 | ASSERT_EFI_ERROR (Status);\r | |
526 | \r | |
527 | return EFI_SUCCESS;\r | |
528 | }\r |