ReactOS  0.4.13-dev-482-ge57f103
hardware.c
Go to the documentation of this file.
1 /*
2  * FreeLoader
3  *
4  * Copyright (C) 2003, 2004 Eric Kohl
5  * Copyright (C) 2009 Hervé Poussineau
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * with this program; if not, write to the Free Software Foundation, Inc.,
19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20  */
21 
22 #include <freeldr.h>
23 
24 #include <debug.h>
25 
26 DBG_DEFAULT_CHANNEL(HWDETECT);
27 
28 
29 #define MILLISEC (10)
30 #define PRECISION (8)
31 
32 #define HZ (100)
33 #define CLOCK_TICK_RATE (1193182)
34 #define LATCH (CLOCK_TICK_RATE / HZ)
35 
36 static unsigned int delay_count = 1;
37 
38 /* Used for BIOS disks pre-enumeration performed when detecting the boot devices in InitializeBootDevices() */
39 extern UCHAR PcBiosDiskCount;
40 
41 /* This function is slightly different in its PC and XBOX versions */
43 
44 PCHAR
45 GetHarddiskIdentifier(UCHAR DriveNumber);
46 
47 /* FUNCTIONS *****************************************************************/
48 
49 static
50 VOID
52 {
53  register volatile unsigned int i;
54  for (i = 0; i < Loops; i++);
55 }
56 
58 {
59  ULONGLONG LoopCount = ((ULONGLONG)delay_count * (ULONGLONG)Microseconds) / 1000ULL;
60  __StallExecutionProcessor((ULONG)LoopCount);
61 }
62 
63 static
64 ULONG
66 {
67  ULONG Count;
68 
69  WRITE_PORT_UCHAR((PUCHAR)0x43, 0x00);
70  Count = READ_PORT_UCHAR((PUCHAR)0x40);
71  Count |= READ_PORT_UCHAR((PUCHAR)0x40) << 8;
72 
73  return Count;
74 }
75 
76 static
77 VOID
79 {
80  ULONG CurCount;
81  ULONG PrevCount = ~0;
82  LONG Delta;
83 
84  CurCount = Read8254Timer();
85 
86  do
87  {
88  PrevCount = CurCount;
89  CurCount = Read8254Timer();
90  Delta = CurCount - PrevCount;
91 
92  /*
93  * This limit for delta seems arbitrary, but it isn't, it's
94  * slightly above the level of error a buggy Mercury/Neptune
95  * chipset timer can cause.
96  */
97  }
98  while (Delta < 300);
99 }
100 
101 VOID
103 {
104  ULONG i;
105  ULONG calib_bit;
106  ULONG CurCount;
107 
108  /* Initialise timer interrupt with MILLISECOND ms interval */
109  WRITE_PORT_UCHAR((PUCHAR)0x43, 0x34); /* binary, mode 2, LSB/MSB, ch 0 */
110  WRITE_PORT_UCHAR((PUCHAR)0x40, LATCH & 0xff); /* LSB */
111  WRITE_PORT_UCHAR((PUCHAR)0x40, LATCH >> 8); /* MSB */
112 
113  /* Stage 1: Coarse calibration */
114 
115  delay_count = 1;
116 
117  do
118  {
119  /* Next delay count to try */
120  delay_count <<= 1;
121 
123 
124  /* Do the delay */
126 
127  CurCount = Read8254Timer();
128  }
129  while (CurCount > LATCH / 2);
130 
131  /* Get bottom value for delay */
132  delay_count >>= 1;
133 
134  /* Stage 2: Fine calibration */
135 
136  /* Which bit are we going to test */
137  calib_bit = delay_count;
138 
139  for (i = 0; i < PRECISION; i++)
140  {
141  /* Next bit to calibrate */
142  calib_bit >>= 1;
143 
144  /* If we have done all bits, stop */
145  if (!calib_bit) break;
146 
147  /* Set the bit in delay_count */
148  delay_count |= calib_bit;
149 
151 
152  /* Do the delay */
154 
155  CurCount = Read8254Timer();
156  /* If a tick has passed, turn the calibrated bit back off */
157  if (CurCount <= LATCH / 2)
158  delay_count &= ~calib_bit;
159  }
160 
161  /* We're finished: Do the finishing touches */
162 
163  /* Calculate delay_count for 1ms */
164  delay_count /= (MILLISEC / 2);
165 }
166 
167 
168 static
169 UCHAR
171 {
172  UCHAR Data;
173 
174  WRITE_PORT_UCHAR((PUCHAR)0x70, 0x10);
175  Data = READ_PORT_UCHAR((PUCHAR)0x71);
176 
177  return ((Data & 0xF0) ? 1 : 0) + ((Data & 0x0F) ? 1 : 0);
178 }
179 
180 static
181 UCHAR
182 GetFloppyType(UCHAR DriveNumber)
183 {
184  UCHAR Data;
185 
186  WRITE_PORT_UCHAR((PUCHAR)0x70, 0x10);
187  Data = READ_PORT_UCHAR((PUCHAR)0x71);
188 
189  if (DriveNumber == 0)
190  return Data >> 4;
191  else if (DriveNumber == 1)
192  return Data & 0x0F;
193 
194  return 0;
195 }
196 
197 static
198 PVOID
200 {
201  PUSHORT SegPtr = (PUSHORT)0x7A;
202  PUSHORT OfsPtr = (PUSHORT)0x78;
203 
204  return (PVOID)((ULONG_PTR)(((ULONG)(*SegPtr)) << 4) + (ULONG)(*OfsPtr));
205 }
206 
207 static
208 VOID
210 {
211  PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
212  PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor;
213  PCM_FLOPPY_DEVICE_DATA FloppyData;
214  CHAR Identifier[20];
215  PCONFIGURATION_COMPONENT_DATA PeripheralKey;
216  ULONG Size;
217  UCHAR FloppyNumber;
218  UCHAR FloppyType;
219  ULONG MaxDensity[6] = {0, 360, 1200, 720, 1440, 2880};
220  PUCHAR Ptr;
221 
222  for (FloppyNumber = 0; FloppyNumber < 2; FloppyNumber++)
223  {
224  FloppyType = GetFloppyType(FloppyNumber);
225 
226  if ((FloppyType > 5) || (FloppyType == 0))
227  continue;
228 
229  if (!DiskResetController(FloppyNumber))
230  continue;
231 
232  Ptr = GetInt1eTable();
233 
234  /* Set 'Identifier' value */
235  sprintf(Identifier, "FLOPPY%d", FloppyNumber + 1);
236 
237  Size = sizeof(CM_PARTIAL_RESOURCE_LIST) +
238  sizeof(CM_FLOPPY_DEVICE_DATA);
239  PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
240  if (PartialResourceList == NULL)
241  {
242  ERR("Failed to allocate resource descriptor\n");
243  return;
244  }
245 
246  memset(PartialResourceList, 0, Size);
247  PartialResourceList->Version = 1;
248  PartialResourceList->Revision = 1;
249  PartialResourceList->Count = 1;
250 
251  PartialDescriptor = &PartialResourceList->PartialDescriptors[0];
252  PartialDescriptor->Type = CmResourceTypeDeviceSpecific;
253  PartialDescriptor->ShareDisposition = CmResourceShareUndetermined;
254  PartialDescriptor->u.DeviceSpecificData.DataSize = sizeof(CM_FLOPPY_DEVICE_DATA);
255 
256  FloppyData = (PVOID)(((ULONG_PTR)PartialResourceList) + sizeof(CM_PARTIAL_RESOURCE_LIST));
257  FloppyData->Version = 2;
258  FloppyData->Revision = 0;
259  FloppyData->MaxDensity = MaxDensity[FloppyType];
260  FloppyData->MountDensity = 0;
261  RtlCopyMemory(&FloppyData->StepRateHeadUnloadTime, Ptr, 11);
262  FloppyData->MaximumTrackValue = (FloppyType == 1) ? 39 : 79;
263  FloppyData->DataTransferRate = 0;
264 
265  FldrCreateComponentKey(ControllerKey,
267  FloppyDiskPeripheral,
268  Input | Output,
269  FloppyNumber,
270  0xFFFFFFFF,
271  Identifier,
272  PartialResourceList,
273  Size,
274  &PeripheralKey);
275  }
276 }
277 
278 static
281 {
282  PCONFIGURATION_COMPONENT_DATA ControllerKey;
283  PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
284  PCM_PARTIAL_RESOURCE_DESCRIPTOR PartialDescriptor;
285  ULONG Size;
286  ULONG FloppyCount;
287 
288  FloppyCount = GetFloppyCount();
289  TRACE("Floppy count: %u\n", FloppyCount);
290 
291  /* Always create a BIOS disk controller, no matter if we have floppy drives or not */
292  Size = sizeof(CM_PARTIAL_RESOURCE_LIST) +
293  2 * sizeof(CM_PARTIAL_RESOURCE_DESCRIPTOR);
294  PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
295  if (PartialResourceList == NULL)
296  {
297  ERR("Failed to allocate resource descriptor\n");
298  return NULL;
299  }
300  memset(PartialResourceList, 0, Size);
301 
302  /* Initialize resource descriptor */
303  PartialResourceList->Version = 1;
304  PartialResourceList->Revision = 1;
305  PartialResourceList->Count = 3;
306 
307  /* Set IO Port */
308  PartialDescriptor = &PartialResourceList->PartialDescriptors[0];
309  PartialDescriptor->Type = CmResourceTypePort;
311  PartialDescriptor->Flags = CM_RESOURCE_PORT_IO;
312  PartialDescriptor->u.Port.Start.LowPart = 0x03F0;
313  PartialDescriptor->u.Port.Start.HighPart = 0x0;
314  PartialDescriptor->u.Port.Length = 8;
315 
316  /* Set Interrupt */
317  PartialDescriptor = &PartialResourceList->PartialDescriptors[1];
318  PartialDescriptor->Type = CmResourceTypeInterrupt;
319  PartialDescriptor->ShareDisposition = CmResourceShareUndetermined;
320  PartialDescriptor->Flags = CM_RESOURCE_INTERRUPT_LATCHED;
321  PartialDescriptor->u.Interrupt.Level = 6;
322  PartialDescriptor->u.Interrupt.Vector = 6;
323  PartialDescriptor->u.Interrupt.Affinity = 0xFFFFFFFF;
324 
325  /* Set DMA channel */
326  PartialDescriptor = &PartialResourceList->PartialDescriptors[2];
327  PartialDescriptor->Type = CmResourceTypeDma;
328  PartialDescriptor->ShareDisposition = CmResourceShareUndetermined;
329  PartialDescriptor->Flags = 0;
330  PartialDescriptor->u.Dma.Channel = 2;
331  PartialDescriptor->u.Dma.Port = 0;
332 
333  /* Create floppy disk controller */
334  FldrCreateComponentKey(BusKey,
337  Output | Input,
338  0x0,
339  0xFFFFFFFF,
340  NULL,
341  PartialResourceList,
342  Size,
343  &ControllerKey);
344  TRACE("Created key: DiskController\\0\n");
345 
346  if (FloppyCount)
347  DetectBiosFloppyPeripheral(ControllerKey);
348 
349  return ControllerKey;
350 }
351 
352 VOID
355 {
356  PCONFIGURATION_COMPONENT_DATA ControllerKey, DiskKey;
357  PCM_PARTIAL_RESOURCE_LIST PartialResourceList;
358  PCM_INT13_DRIVE_PARAMETER Int13Drives;
359  GEOMETRY Geometry;
360  UCHAR DiskCount, DriveNumber;
361  USHORT i;
362  ULONG Size;
363 
364  /* The pre-enumeration of the BIOS disks was already done in InitializeBootDevices() */
365  DiskCount = PcBiosDiskCount;
366 
367  /* Use the floppy disk controller as our controller */
368  ControllerKey = DetectBiosFloppyController(BusKey);
369  if (!ControllerKey)
370  {
371  ERR("Failed to detect BIOS disk controller\n");
372  return;
373  }
374 
375  /* Allocate resource descriptor */
376  Size = sizeof(CM_PARTIAL_RESOURCE_LIST) +
377  sizeof(CM_INT13_DRIVE_PARAMETER) * DiskCount;
378  PartialResourceList = FrLdrHeapAlloc(Size, TAG_HW_RESOURCE_LIST);
379  if (PartialResourceList == NULL)
380  {
381  ERR("Failed to allocate resource descriptor\n");
382  return;
383  }
384 
385  /* Initialize resource descriptor */
386  memset(PartialResourceList, 0, Size);
387  PartialResourceList->Version = 1;
388  PartialResourceList->Revision = 1;
389  PartialResourceList->Count = 1;
390  PartialResourceList->PartialDescriptors[0].Type = CmResourceTypeDeviceSpecific;
391  PartialResourceList->PartialDescriptors[0].ShareDisposition = 0;
392  PartialResourceList->PartialDescriptors[0].Flags = 0;
393  PartialResourceList->PartialDescriptors[0].u.DeviceSpecificData.DataSize =
394  sizeof(CM_INT13_DRIVE_PARAMETER) * DiskCount;
395 
396  /* Get harddisk Int13 geometry data */
397  Int13Drives = (PVOID)(((ULONG_PTR)PartialResourceList) + sizeof(CM_PARTIAL_RESOURCE_LIST));
398  for (i = 0; i < DiskCount; i++)
399  {
400  DriveNumber = 0x80 + i;
401 
402  if (MachDiskGetDriveGeometry(DriveNumber, &Geometry))
403  {
404  Int13Drives[i].DriveSelect = DriveNumber;
405  Int13Drives[i].MaxCylinders = Geometry.Cylinders - 1;
406  Int13Drives[i].SectorsPerTrack = (USHORT)Geometry.Sectors;
407  Int13Drives[i].MaxHeads = (USHORT)Geometry.Heads - 1;
408  Int13Drives[i].NumberDrives = DiskCount;
409 
410  TRACE("Disk %x: %u Cylinders %u Heads %u Sectors %u Bytes\n",
411  DriveNumber,
412  Geometry.Cylinders - 1,
413  Geometry.Heads - 1,
414  Geometry.Sectors,
415  Geometry.BytesPerSector);
416  }
417  }
418 
419  /* Update the 'System' key's configuration data with BIOS INT13h information */
420  FldrSetConfigurationData(SystemKey, PartialResourceList, Size);
421 
422  /* Create and fill subkey for each harddisk */
423  for (i = 0; i < DiskCount; i++)
424  {
425  PCHAR Identifier;
426 
427  DriveNumber = 0x80 + i;
428 
429  /* Get disk values */
430  PartialResourceList = GetHarddiskConfigurationData(DriveNumber, &Size);
431  Identifier = GetHarddiskIdentifier(DriveNumber);
432 
433  /* Create disk key */
434  FldrCreateComponentKey(ControllerKey,
436  DiskPeripheral,
437  Output | Input,
438  0x0,
439  0xFFFFFFFF,
440  Identifier,
441  PartialResourceList,
442  Size,
443  &DiskKey);
444  }
445 }
446 
447 VOID
449 {
450  INT CpuInformation[4] = {-1};
451  ULONG NumberOfIds;
452 
453  /* Check if the processor first supports ID 1 */
454  __cpuid(CpuInformation, 0);
455 
456  NumberOfIds = CpuInformation[0];
457 
458  if (NumberOfIds == 0)
459  {
461  __FILE__,
462  __LINE__,
463  "ReactOS requires the CPUID instruction to return "
464  "more than one supported ID.\n\n");
465  }
466 
467  /* NumberOfIds will be greater than 1 if the processor is new enough */
468  if (NumberOfIds == 1)
469  {
470  INT ProcessorFamily;
471 
472  /* Get information */
473  __cpuid(CpuInformation, 1);
474 
475  ProcessorFamily = (CpuInformation[0] >> 8) & 0xF;
476 
477  /* If it's Family 4 or lower, bugcheck */
478  if (ProcessorFamily < 5)
479  {
481  __FILE__,
482  __LINE__,
483  "Processor is too old (family %u < 5)\n"
484  "ReactOS requires a Pentium-level processor or newer.",
485  ProcessorFamily);
486  }
487  }
488 }
489 
490 /* EOF */
struct _CM_PARTIAL_RESOURCE_LIST CM_PARTIAL_RESOURCE_LIST
signed char * PCHAR
Definition: retypes.h:7
BOOLEAN DiskResetController(UCHAR DriveNumber)
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struct _CM_PARTIAL_RESOURCE_DESCRIPTOR::@369::@375 Dma
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GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
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