summaryrefslogtreecommitdiff
path: root/PcAtChipsetPkg/Bus/Pci/IdeControllerDxe/IdeController.c
blob: 6194eaa612a3411f07e7537e0fdbb91d75609122 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
/** @file
  This driver module produces IDE_CONTROLLER_INIT protocol and will be used by 
  IDE Bus driver to support platform dependent timing information. This driver
  is responsible for early initialization of IDE controller.

  Copyright (c) 2008 - 2009, Intel Corporation. All rights reserved.<BR>
  This program and the accompanying materials                          
  are licensed and made available under the terms and conditions of the BSD License         
  which accompanies this distribution.  The full text of the license may be found at        
  http://opensource.org/licenses/bsd-license.php                                            

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             

**/

#include "IdeController.h"

//
//  EFI_DRIVER_BINDING_PROTOCOL instance
//
EFI_DRIVER_BINDING_PROTOCOL gIdeControllerDriverBinding = {
  IdeControllerSupported,
  IdeControllerStart,
  IdeControllerStop,
  0xa,
  NULL,
  NULL
};

//
//  EFI_IDE_CONTROLLER_PROVATE_DATA Template
//
EFI_IDE_CONTROLLER_INIT_PROTOCOL  gEfiIdeControllerInit = {
  IdeInitGetChannelInfo,
  IdeInitNotifyPhase,
  IdeInitSubmitData,
  IdeInitDisqualifyMode,
  IdeInitCalculateMode,
  IdeInitSetTiming,
  ICH_IDE_ENUMER_ALL,
  ICH_IDE_MAX_CHANNEL
};

//
//  EFI_ATA_COLLECTIVE_MODE Template
//
EFI_ATA_COLLECTIVE_MODE  gEfiAtaCollectiveModeTemplate = {
  {           
    TRUE,                   // PioMode.Valid
    0                       // PioMode.Mode
  },
  {
    TRUE,                   // SingleWordDmaMode.Valid
    0
  },
  {
    FALSE,                  // MultiWordDmaMode.Valid
    0
  },
  {
    TRUE,                   // UdmaMode.Valid
    0                       // UdmaMode.Mode
  }
};

EFI_STATUS
EFIAPI
InitializeIdeControllerDriver (
  IN EFI_HANDLE       ImageHandle,
  IN EFI_SYSTEM_TABLE *SystemTable
  )
/*++
  Routine Description:
  
    Chipset Ide Driver EntryPoint function. It follows the standard EFI driver 
    model. It's called by StartImage() of DXE Core
    
  Argments:
  
    ImageHnadle  -- While the driver image loaded be the ImageLoader(), 
                    an image handle is assigned to this driver binary, 
                    all activities of the driver is tied to this ImageHandle
    *SystemTable -- A pointer to the system table, for all BS(Boo Services) and
                    RT(Runtime Services)

  Retruns:
  
    Always call EfiLibInstallDriverBindingProtocol( ) and retrun the result

--*/
{
  EFI_STATUS  Status;

  //
  // Install driver model protocol(s).
  //
  Status = EfiLibInstallDriverBindingComponentName2 (
             ImageHandle,
             SystemTable,
             &gIdeControllerDriverBinding,
             ImageHandle,
             &gIdeControllerComponentName,
             &gIdeControllerComponentName2
             );
  ASSERT_EFI_ERROR (Status);

  return Status;
}

EFI_STATUS
EFIAPI
IdeControllerSupported (
  IN EFI_DRIVER_BINDING_PROTOCOL *This,
  IN EFI_HANDLE                  Controller,
  IN EFI_DEVICE_PATH_PROTOCOL    *RemainingDevicePath
  )
/*++

  Routine Description:
  
  Register Driver Binding protocol for this driver.
  
  Arguments:
  
    This                 -- a pointer points to the Binding Protocol instance
    Controller           -- The handle of controller to be tested. 
    *RemainingDevicePath -- A pointer to the device path. Ignored by device
                            driver but used by bus driver

  Returns:

    EFI_SUCCESS          -- Driver loaded.
    other                -- Driver not loaded.
--*/
{
  EFI_STATUS                Status;
  EFI_PCI_IO_PROTOCOL       *PciIo;
  UINT8                     PciClass;
  UINT8                     PciSubClass;

  //
  // Attempt to Open PCI I/O Protocol
  //
  Status = gBS->OpenProtocol (
                  Controller,
                  &gEfiPciIoProtocolGuid,
                  (VOID **) &PciIo,
                  This->DriverBindingHandle,
                  Controller,
                  EFI_OPEN_PROTOCOL_BY_DRIVER
                  );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // Now further check the PCI header: Base class (offset 0x0B) and
  // Sub Class (offset 0x0A). This controller should be an Ide controller
  //
  Status = PciIo->Pci.Read (
                        PciIo,
                        EfiPciIoWidthUint8,
                        PCI_CLASSCODE_OFFSET + 2,
                        1,
                        &PciClass
                        );
  if (EFI_ERROR (Status)) {
    goto Done;
  }

  Status = PciIo->Pci.Read (
                        PciIo,
                        EfiPciIoWidthUint8,
                        PCI_CLASSCODE_OFFSET + 1,
                        1,
                        &PciSubClass
                        );
  if (EFI_ERROR (Status)) {
    goto Done;
  }

  //
  // Examine Ide PCI Configuration table fields
  //
  if ((PciClass != PCI_CLASS_MASS_STORAGE) || (PciSubClass != PCI_CLASS_MASS_STORAGE_IDE)) {
    Status = EFI_UNSUPPORTED;
  }

Done:
  gBS->CloseProtocol (
        Controller,
        &gEfiPciIoProtocolGuid,
        This->DriverBindingHandle,
        Controller
        );

  return Status;
}

EFI_STATUS
EFIAPI
IdeControllerStart (
  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
  IN EFI_HANDLE                     Controller,
  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
  )
/*++

  Routine Description:
  
    This routine is called right after the .Supported() called and return 
    EFI_SUCCESS. Notes: The supported protocols are checked but the Protocols
    are closed.

  Arguments:
      
    This                 -- a pointer points to the Binding Protocol instance
    Controller           -- The handle of controller to be tested. Parameter
                            passed by the caller
    *RemainingDevicePath -- A pointer to the device path. Should be ignored by
                            device driver
--*/
{
  EFI_STATUS           Status;
  EFI_PCI_IO_PROTOCOL  *PciIo;

  //
  // Now test and open the EfiPciIoProtocol
  //
  Status = gBS->OpenProtocol (
                  Controller,
                  &gEfiPciIoProtocolGuid,
                  (VOID **) &PciIo,
                  This->DriverBindingHandle,
                  Controller,
                  EFI_OPEN_PROTOCOL_BY_DRIVER
                  );
  //
  // Status == EFI_SUCCESS - A normal execution flow, SUCCESS and the program proceeds.
  // Status == ALREADY_STARTED - A non-zero Status code returned. It indicates
  //           that the protocol has been opened and should be treated as a
  //           normal condition and the program proceeds. The Protocol will not
  //           opened 'again' by this call.
  // Status != ALREADY_STARTED - Error status, terminate program execution
  //
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // Install IDE_CONTROLLER_INIT protocol 
  //
  return gBS->InstallMultipleProtocolInterfaces (
                &Controller,
                &gEfiIdeControllerInitProtocolGuid, &gEfiIdeControllerInit,
                NULL
                );
}

EFI_STATUS
EFIAPI
IdeControllerStop (
  IN  EFI_DRIVER_BINDING_PROTOCOL     *This,
  IN  EFI_HANDLE                      Controller,
  IN  UINTN                           NumberOfChildren,
  IN  EFI_HANDLE                      *ChildHandleBuffer
  )
/*++
  
  Routine Description:
    Stop this driver on Controller Handle. 

  Arguments:
    This              - Protocol instance pointer.
    Controller        - Handle of device to stop driver on 
    NumberOfChildren  - Not used
    ChildHandleBuffer - Not used

  Returns:
    EFI_SUCCESS       - This driver is removed DeviceHandle
    other             - This driver was not removed from this device
  
--*/
{
  EFI_STATUS                        Status;
  EFI_IDE_CONTROLLER_INIT_PROTOCOL  *IdeControllerInit;

  //
  // Open the produced protocol
  //
  Status = gBS->OpenProtocol (
                  Controller,
                  &gEfiIdeControllerInitProtocolGuid,
                  (VOID **) &IdeControllerInit,
                  This->DriverBindingHandle,
                  Controller,
                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
                  );
  if (EFI_ERROR (Status)) {
     return EFI_UNSUPPORTED;
  }

  //
  // Make sure the protocol was produced by this driver
  //
  if (IdeControllerInit != &gEfiIdeControllerInit) {
    return EFI_UNSUPPORTED;
  }

  //
  // Uninstall the IDE Controller Init Protocol
  //
  Status = gBS->UninstallMultipleProtocolInterfaces (
                  Controller,
                  &gEfiIdeControllerInitProtocolGuid, &gEfiIdeControllerInit,
                  NULL
                  );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  //
  // Close protocols opened by Ide controller driver
  //
  return gBS->CloseProtocol (
                Controller,
                &gEfiPciIoProtocolGuid,
                This->DriverBindingHandle,
                Controller
                );
}

//
// Interface functions of IDE_CONTROLLER_INIT protocol
//
EFI_STATUS
EFIAPI
IdeInitGetChannelInfo (
  IN   EFI_IDE_CONTROLLER_INIT_PROTOCOL *This,
  IN   UINT8                            Channel,
  OUT  BOOLEAN                          *Enabled,
  OUT  UINT8                            *MaxDevices
  )
/*++
Routine Description:

  This function can be used to obtain information about a specified channel. 
  It's usually used by IDE Bus driver during enumeration process.

Arguments:

  This       -- the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
  Channel    -- Channel number (0 based, either 0 or 1)
  Enabled    -- TRUE if the channel is enabled. If the channel is disabled, 
                then it will no be enumerated.
  MaxDevices -- The Max number of IDE devices that the bus driver can expect
                on this channel. For ATA/ATAPI, this number is either 1 or 2.

Returns:
  EFI_STATUS 

--*/
{
  //
  // Channel number (0 based, either 0 or 1)
  //
  if (Channel < ICH_IDE_MAX_CHANNEL) {
    *Enabled    = TRUE;
    *MaxDevices = ICH_IDE_MAX_DEVICES;
    return EFI_SUCCESS;
  }

  *Enabled = FALSE;
  return EFI_INVALID_PARAMETER;
}


EFI_STATUS
EFIAPI
IdeInitNotifyPhase (
  IN  EFI_IDE_CONTROLLER_INIT_PROTOCOL   *This,
  IN  EFI_IDE_CONTROLLER_ENUM_PHASE      Phase,
  IN  UINT8                              Channel
  )
/*++

Routine Description:

  This function is called by IdeBus driver before executing certain actions. 
  This allows IDE Controller Init to prepare for each action.

Arguments:

  This     -- the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
  Phase    -- phase indicator defined by IDE_CONTROLLER_INIT protocol
  Channel  -- Channel number (0 based, either 0 or 1)

Returns:
    
--*/
{
  return EFI_SUCCESS;
}

EFI_STATUS
EFIAPI
IdeInitSubmitData (
  IN  EFI_IDE_CONTROLLER_INIT_PROTOCOL    *This,
  IN  UINT8                               Channel,
  IN  UINT8                               Device,
  IN  EFI_IDENTIFY_DATA                   *IdentifyData
  )
/*++

Routine Description:

  This function is called by IdeBus driver to submit EFI_IDENTIFY_DATA data structure
  obtained from IDE deivce. This structure is used to set IDE timing

Arguments:

  This         -- the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
  Channel      -- IDE channel number (0 based, either 0 or 1)
  Device       -- IDE device number
  IdentifyData -- A pointer to EFI_IDENTIFY_DATA data structure

Returns:
    
--*/
{
  return EFI_SUCCESS;
}

EFI_STATUS
EFIAPI
IdeInitDisqualifyMode (
  IN  EFI_IDE_CONTROLLER_INIT_PROTOCOL    *This,
  IN  UINT8                               Channel,
  IN  UINT8                               Device,
  IN  EFI_ATA_COLLECTIVE_MODE             *BadModes
  )
/*++

Routine Description:

  This function is called by IdeBus driver to disqualify unsupported operation
  mode on specfic IDE device

Arguments:

  This     -- the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
  Channel  -- IDE channel number (0 based, either 0 or 1)
  Device   -- IDE device number
  BadModes -- Operation mode indicator

Returns:
    
--*/
{
  return EFI_SUCCESS;
}

EFI_STATUS
EFIAPI
IdeInitCalculateMode (
  IN  EFI_IDE_CONTROLLER_INIT_PROTOCOL       *This,
  IN  UINT8                                  Channel,
  IN  UINT8                                  Device,
  OUT EFI_ATA_COLLECTIVE_MODE                **SupportedModes
  )
/*++

Routine Description:

  This function is called by IdeBus driver to calculate the best operation mode
  supported by specific IDE device

Arguments:

  This           -- the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
  Channel        -- IDE channel number (0 based, either 0 or 1)
  Device         -- IDE device number
  SupportedModes -- Modes collection supported by IDE device

Returns:
    
--*/
{
  if (Channel >= ICH_IDE_MAX_CHANNEL || Device >= ICH_IDE_MAX_DEVICES) {
    return EFI_INVALID_PARAMETER;
  }

  *SupportedModes = AllocateCopyPool (sizeof (EFI_ATA_COLLECTIVE_MODE), &gEfiAtaCollectiveModeTemplate);
  if (*SupportedModes == NULL) {
    return EFI_OUT_OF_RESOURCES;
  }

  return EFI_SUCCESS;
}


EFI_STATUS
EFIAPI
IdeInitSetTiming (
  IN  EFI_IDE_CONTROLLER_INIT_PROTOCOL    *This,
  IN  UINT8                               Channel,
  IN  UINT8                               Device,
  IN  EFI_ATA_COLLECTIVE_MODE             *Modes
  )
/*++

Routine Description:

  This function is called by IdeBus driver to set appropriate timing on IDE
  controller according supported operation mode

Arguments:

  This           -- the EFI_IDE_CONTROLLER_INIT_PROTOCOL instance.
  Channel        -- IDE channel number (0 based, either 0 or 1)
  Device         -- IDE device number

Returns:
    
--*/
{
  return EFI_SUCCESS;
}