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[mirror_edk2.git] / EdkNt32Pkg / Dxe / WinNtThunk / Bus / Uga / WinNtUgaDriver.c
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878ddf1f 1/*++\r
2\r
fa332de7 3Copyright (c) 2006 - 2007, Intel Corporation\r
4All rights reserved. This program and the accompanying materials\r
5are licensed and made available under the terms and conditions of the BSD License\r
6which accompanies this distribution. The full text of the license may be found at\r
7http://opensource.org/licenses/bsd-license.php\r
8\r
9THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
10WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
878ddf1f 11\r
12Module Name:\r
13\r
14 WinNtUgaDriver.c\r
15\r
16Abstract:\r
17\r
18 This file implements the EFI 1.1 Device Driver model requirements for UGA\r
19\r
20 UGA is short hand for Universal Graphics Abstraction protocol.\r
21\r
fa332de7 22 This file is a verision of UgaIo the uses WinNtThunk system calls as an IO\r
878ddf1f 23 abstraction. For a PCI device WinNtIo would be replaced with\r
fa332de7 24 a PCI IO abstraction that abstracted a specific PCI device.\r
878ddf1f 25\r
26--*/\r
27\r
28#include "WinNtUga.h"\r
29\r
30EFI_DRIVER_BINDING_PROTOCOL gWinNtUgaDriverBinding = {\r
31 WinNtUgaDriverBindingSupported,\r
32 WinNtUgaDriverBindingStart,\r
33 WinNtUgaDriverBindingStop,\r
8b018de6 34 0xa,\r
878ddf1f 35 NULL,\r
36 NULL\r
37};\r
38\r
39\r
40EFI_STATUS\r
41EFIAPI\r
42WinNtUgaDriverBindingSupported (\r
43 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
44 IN EFI_HANDLE Handle,\r
45 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
46 )\r
47/*++\r
48\r
49Routine Description:\r
50\r
51Arguments:\r
52\r
53Returns:\r
54\r
55 None\r
56\r
57--*/\r
58// TODO: This - add argument and description to function comment\r
59// TODO: Handle - add argument and description to function comment\r
60// TODO: RemainingDevicePath - add argument and description to function comment\r
61{\r
62 EFI_STATUS Status;\r
63 EFI_WIN_NT_IO_PROTOCOL *WinNtIo;\r
64\r
65 //\r
66 // Open the IO Abstraction(s) needed to perform the supported test\r
67 //\r
68 Status = gBS->OpenProtocol (\r
69 Handle,\r
70 &gEfiWinNtIoProtocolGuid,\r
71 &WinNtIo,\r
72 This->DriverBindingHandle,\r
73 Handle,\r
74 EFI_OPEN_PROTOCOL_BY_DRIVER\r
75 );\r
76 if (EFI_ERROR (Status)) {\r
77 return Status;\r
78 }\r
79\r
80 Status = WinNtUgaSupported (WinNtIo);\r
81\r
82 //\r
83 // Close the I/O Abstraction(s) used to perform the supported test\r
84 //\r
85 gBS->CloseProtocol (\r
86 Handle,\r
87 &gEfiWinNtIoProtocolGuid,\r
88 This->DriverBindingHandle,\r
89 Handle\r
90 );\r
91\r
92 return Status;\r
93}\r
94\r
95EFI_STATUS\r
96EFIAPI\r
97WinNtUgaDriverBindingStart (\r
98 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
99 IN EFI_HANDLE Handle,\r
100 IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath\r
101 )\r
102/*++\r
103\r
104Routine Description:\r
105\r
106Arguments:\r
107\r
108Returns:\r
109\r
110 None\r
111\r
112--*/\r
113// TODO: This - add argument and description to function comment\r
114// TODO: Handle - add argument and description to function comment\r
115// TODO: RemainingDevicePath - add argument and description to function comment\r
116// TODO: EFI_UNSUPPORTED - add return value to function comment\r
117{\r
118 EFI_WIN_NT_IO_PROTOCOL *WinNtIo;\r
119 EFI_STATUS Status;\r
120 UGA_PRIVATE_DATA *Private;\r
121\r
122 //\r
123 // Grab the protocols we need\r
124 //\r
125 Status = gBS->OpenProtocol (\r
126 Handle,\r
127 &gEfiWinNtIoProtocolGuid,\r
128 &WinNtIo,\r
129 This->DriverBindingHandle,\r
130 Handle,\r
131 EFI_OPEN_PROTOCOL_BY_DRIVER\r
132 );\r
133 if (EFI_ERROR (Status)) {\r
134 return EFI_UNSUPPORTED;\r
135 }\r
136\r
137 //\r
138 // Allocate Private context data for SGO inteface.\r
139 //\r
fa332de7 140 Private = AllocatePool (sizeof (UGA_PRIVATE_DATA));\r
141 if (Private == NULL) {\r
878ddf1f 142 goto Done;\r
143 }\r
144 //\r
145 // Set up context record\r
146 //\r
147 Private->Signature = UGA_PRIVATE_DATA_SIGNATURE;\r
148 Private->Handle = Handle;\r
149 Private->WinNtThunk = WinNtIo->WinNtThunk;\r
150\r
151 Private->ControllerNameTable = NULL;\r
152\r
153 AddUnicodeString (\r
154 "eng",\r
155 gWinNtUgaComponentName.SupportedLanguages,\r
156 &Private->ControllerNameTable,\r
157 WinNtIo->EnvString\r
158 );\r
159\r
160 Private->WindowName = WinNtIo->EnvString;\r
161\r
162 Status = WinNtUgaConstructor (Private);\r
163 if (EFI_ERROR (Status)) {\r
164 goto Done;\r
165 }\r
166 //\r
167 // Publish the Uga interface to the world\r
168 //\r
169 Status = gBS->InstallMultipleProtocolInterfaces (\r
170 &Private->Handle,\r
171 &gEfiUgaDrawProtocolGuid,\r
172 &Private->UgaDraw,\r
173 &gEfiSimpleTextInProtocolGuid,\r
174 &Private->SimpleTextIn,\r
175 NULL\r
176 );\r
177\r
178Done:\r
179 if (EFI_ERROR (Status)) {\r
180\r
181 gBS->CloseProtocol (\r
182 Handle,\r
183 &gEfiWinNtIoProtocolGuid,\r
184 This->DriverBindingHandle,\r
185 Handle\r
186 );\r
187\r
188 if (Private != NULL) {\r
189 //\r
190 // On Error Free back private data\r
191 //\r
192 if (Private->ControllerNameTable != NULL) {\r
193 FreeUnicodeStringTable (Private->ControllerNameTable);\r
194 }\r
195\r
fa332de7 196 FreePool (Private);\r
878ddf1f 197 }\r
198 }\r
199\r
200 return Status;\r
201}\r
202\r
203EFI_STATUS\r
204EFIAPI\r
205WinNtUgaDriverBindingStop (\r
206 IN EFI_DRIVER_BINDING_PROTOCOL *This,\r
207 IN EFI_HANDLE Handle,\r
208 IN UINTN NumberOfChildren,\r
209 IN EFI_HANDLE *ChildHandleBuffer\r
210 )\r
211/*++\r
212\r
213Routine Description:\r
214\r
215Arguments:\r
216\r
217Returns:\r
218\r
219 None\r
220\r
221--*/\r
222// TODO: This - add argument and description to function comment\r
223// TODO: Handle - add argument and description to function comment\r
224// TODO: NumberOfChildren - add argument and description to function comment\r
225// TODO: ChildHandleBuffer - add argument and description to function comment\r
226// TODO: EFI_NOT_STARTED - add return value to function comment\r
227// TODO: EFI_DEVICE_ERROR - add return value to function comment\r
228{\r
229 EFI_UGA_DRAW_PROTOCOL *UgaDraw;\r
230 EFI_STATUS Status;\r
231 UGA_PRIVATE_DATA *Private;\r
232\r
233 Status = gBS->OpenProtocol (\r
234 Handle,\r
235 &gEfiUgaDrawProtocolGuid,\r
236 &UgaDraw,\r
237 This->DriverBindingHandle,\r
238 Handle,\r
239 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
240 );\r
241 if (EFI_ERROR (Status)) {\r
242 //\r
243 // If the UGA interface does not exist the driver is not started\r
244 //\r
245 return EFI_NOT_STARTED;\r
246 }\r
247\r
248 //\r
249 // Get our private context information\r
250 //\r
251 Private = UGA_DRAW_PRIVATE_DATA_FROM_THIS (UgaDraw);\r
252\r
253 //\r
254 // Remove the SGO interface from the system\r
255 //\r
256 Status = gBS->UninstallMultipleProtocolInterfaces (\r
257 Private->Handle,\r
258 &gEfiUgaDrawProtocolGuid,\r
259 &Private->UgaDraw,\r
260 &gEfiSimpleTextInProtocolGuid,\r
261 &Private->SimpleTextIn,\r
262 NULL\r
263 );\r
264 if (!EFI_ERROR (Status)) {\r
265 //\r
266 // Shutdown the hardware\r
267 //\r
268 Status = WinNtUgaDestructor (Private);\r
269 if (EFI_ERROR (Status)) {\r
270 return EFI_DEVICE_ERROR;\r
271 }\r
272\r
273 gBS->CloseProtocol (\r
274 Handle,\r
275 &gEfiWinNtIoProtocolGuid,\r
276 This->DriverBindingHandle,\r
277 Handle\r
278 );\r
279\r
280 //\r
281 // Free our instance data\r
282 //\r
283 FreeUnicodeStringTable (Private->ControllerNameTable);\r
284\r
fa332de7 285 FreePool (Private);\r
878ddf1f 286\r
287 }\r
288\r
289 return Status;\r
290}\r
291\r
292UINTN\r
293Atoi (\r
294 CHAR16 *String\r
295 )\r
296/*++\r
297\r
298Routine Description:\r
299\r
300 Convert a unicode string to a UINTN\r
301\r
302Arguments:\r
303\r
304 String - Unicode string.\r
305\r
fa332de7 306Returns:\r
878ddf1f 307\r
fa332de7 308 UINTN of the number represented by String.\r
878ddf1f 309\r
310--*/\r
311{\r
312 UINTN Number;\r
313 CHAR16 *Str;\r
314\r
315 //\r
316 // skip preceeding white space\r
317 //\r
318 Str = String;\r
319 while ((*Str) && (*Str == ' ' || *Str == '"')) {\r
320 Str++;\r
321 }\r
322\r
323 //\r
324 // Convert ot a Number\r
325 //\r
326 Number = 0;\r
327 while (*Str != '\0') {\r
328 if ((*Str >= '0') && (*Str <= '9')) {\r
329 Number = (Number * 10) +*Str - '0';\r
330 } else {\r
331 break;\r
332 }\r
333\r
334 Str++;\r
335 }\r
336\r
337 return Number;\r
338}\r
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