ReactOS  0.4.15-dev-2774-gc8ce0cc
Classes | Macros | Typedefs | Functions | Variables
bios.h File Reference
#include "kbdbios.h"
#include "vidbios.h"
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Classes

struct  BIOS_DATA_AREA
 
struct  USER_DATA_AREA
 
struct  _BIOS_CONFIG_TABLE
 

Macros

#define BOP_RESET   0x00
 
#define BOP_EQUIPLIST   0x11
 
#define BOP_GETMEMSIZE   0x12
 
#define BDA_SEGMENT   0x40
 
#define BIOS_SEGMENT   0xF000
 

Typedefs

typedef struct BIOS_DATA_AREA * PBIOS_DATA_AREA
 
typedef struct USER_DATA_AREA * PUSER_DATA_AREA
 
typedef struct _BIOS_CONFIG_TABLE BIOS_CONFIG_TABLE
 
typedef struct _BIOS_CONFIG_TABLE * PBIOS_CONFIG_TABLE
 

Functions

 C_ASSERT (sizeof(BIOS_DATA_AREA)==0x100)
 
 C_ASSERT (sizeof(USER_DATA_AREA)==0x34)
 
VOID WINAPI BiosEquipmentService (LPWORD Stack)
 
VOID WINAPI BiosGetMemorySize (LPWORD Stack)
 
BOOLEAN BiosInitialize (IN LPCSTR BiosFileName, IN LPCSTR RomFiles OPTIONAL)
 
VOID BiosCleanup (VOID)
 

Variables

PBIOS_DATA_AREA Bda
 
PBIOS_CONFIG_TABLE Bct
 

Macro Definition Documentation

◆ BDA_SEGMENT

#define BDA_SEGMENT   0x40

Definition at line 28 of file bios.h.

◆ BIOS_SEGMENT

#define BIOS_SEGMENT   0xF000

Definition at line 29 of file bios.h.

◆ BOP_EQUIPLIST

#define BOP_EQUIPLIST   0x11

Definition at line 22 of file bios.h.

◆ BOP_GETMEMSIZE

#define BOP_GETMEMSIZE   0x12

Definition at line 23 of file bios.h.

◆ BOP_RESET

#define BOP_RESET   0x00

Definition at line 20 of file bios.h.

Typedef Documentation

◆ BIOS_CONFIG_TABLE

typedef struct _BIOS_CONFIG_TABLE BIOS_CONFIG_TABLE

◆ PBIOS_CONFIG_TABLE

typedef struct _BIOS_CONFIG_TABLE * PBIOS_CONFIG_TABLE

◆ PBIOS_DATA_AREA

typedef struct BIOS_DATA_AREA * PBIOS_DATA_AREA

◆ PUSER_DATA_AREA

typedef struct USER_DATA_AREA * PUSER_DATA_AREA

Function Documentation

◆ BiosCleanup()

VOID BiosCleanup ( VOID  )

Definition at line 153 of file bios.c.

154 {
155  UmaMgrCleanup();
156 
157  if (Bios32Loaded) Bios32Cleanup();
158 }
Bios32Cleanup
VOID Bios32Cleanup(VOID)
Definition: bios32.c:1285
UmaMgrCleanup
VOID UmaMgrCleanup(VOID)
Definition: umamgr.c:616
Bios32Loaded
static BOOLEAN Bios32Loaded
Definition: bios.c:40

Referenced by VdmShutdown().

◆ BiosEquipmentService()

VOID WINAPI BiosEquipmentService ( LPWORD  Stack)

Definition at line 200 of file bios32.c.

201 {
202  /* Return the equipment list */
203  setAX(Bda->EquipmentList);
204 }
setAX
VOID WINAPI setAX(USHORT)
Definition: registers.c:121
Bda
PBIOS_DATA_AREA Bda
Definition: bios.c:42
BIOS_DATA_AREA::EquipmentList
WORD EquipmentList
Definition: bios.h:45

Referenced by BiosInitialize(), and InitializeBiosInt32().

◆ BiosGetMemorySize()

VOID WINAPI BiosGetMemorySize ( LPWORD  Stack)

Definition at line 206 of file bios32.c.

207 {
208  /* Return the conventional memory size in kB, typically 640 kB */
209  setAX(Bda->MemorySize);
210 }
setAX
VOID WINAPI setAX(USHORT)
Definition: registers.c:121
Bda
PBIOS_DATA_AREA Bda
Definition: bios.c:42
BIOS_DATA_AREA::MemorySize
WORD MemorySize
Definition: bios.h:47

Referenced by BiosInitialize(), and InitializeBiosInt32().

◆ BiosInitialize()

BOOLEAN BiosInitialize ( IN LPCSTR  BiosFileName,
IN LPCSTR RomFiles  OPTIONAL 
)

Definition at line 60 of file bios.c.

62 {
63  BOOLEAN Success = FALSE;
64  BOOLEAN Success2 = FALSE;
65  LPCSTR RomFile;
66  LPSTR ptr;
67  ULONG_PTR RomAddress;
68  CHAR RomFileName[MAX_PATH + 10 + 1];
69 
70  /* Disable interrupts */
71  setIF(0);
72 
73  /* Initialize the BDA and the BCT pointers */
74  Bda = (PBIOS_DATA_AREA)SEG_OFF_TO_PTR(BDA_SEGMENT , 0x0000);
75  // The BCT is found at F000:E6F5 for 100% compatible BIOSes.
76  Bct = (PBIOS_CONFIG_TABLE)SEG_OFF_TO_PTR(BIOS_SEGMENT, 0xE6F5);
77 
78  /* Register the BIOS support BOPs */
79  RegisterBop(BOP_RESET, WinNtVdmBiosReset); // Needed for Windows NTVDM (SoftPC) BIOS.
80  RegisterBop(BOP_EQUIPLIST , BiosEquipmentService); // Needed by Windows NTVDM (SoftPC) BIOS
81  RegisterBop(BOP_GETMEMSIZE, BiosGetMemorySize); // and also NTDOS!!
82 
83  if (BiosFileName == NULL)
84  {
85  Success = Bios32Loaded = Bios32Initialize();
86  }
87  else if (BiosFileName[0] != '\0')
88  {
89  PVOID BiosLocation = NULL;
90 
91  Success = LoadBios(BiosFileName, &BiosLocation, NULL);
92  DPRINT1("BIOS file '%s' loading %s at address 0x%08x; GetLastError() = %u\n",
93  BiosFileName, Success ? "succeeded" : "failed", BiosLocation, GetLastError());
94  }
95  else // if (BiosFileName[0] == '\0')
96  {
97  /* Do nothing */
98  Success = TRUE;
99  }
100 
101  /* Bail out now if we failed to load any BIOS file */
102  if (!Success) return FALSE;
103 
104  /* Load optional ROMs */
105  if (RomFiles)
106  {
107  RomFile = RomFiles;
108  while (*RomFile)
109  {
110  strncpy(RomFileName, RomFile, ARRAYSIZE(RomFileName));
111  RomFileName[ARRAYSIZE(RomFileName)-1] = '\0';
112 
113  ptr = strchr(RomFileName, '|'); // Since '|' is forbidden as a valid file name, we use it as a separator for the ROM address.
114  if (!ptr) goto Skip;
115  *ptr++ = '\0';
116 
117  RomAddress = strtoul(ptr, NULL, 0); // ROM segment
118  RomAddress <<= 4; // Convert to real address
119  if (RomAddress == 0) goto Skip;
120 
121  Success2 = LoadRom(RomFileName, (PVOID)RomAddress, NULL);
122  DPRINT1("ROM file '%s' loading %s at address 0x%08x; GetLastError() = %u\n",
123  RomFileName, Success2 ? "succeeded" : "failed", RomAddress, GetLastError());
124 
125 Skip:
126  RomFile += strlen(RomFile) + 1;
127  }
128  }
129 
130  /*
131  * Boot it up.
132  * The CPU is already in reset-mode so that
133  * CS:IP points to F000:FFF0 as required.
134  */
135  // DisplayMessage(L"CS:IP=%04X:%04X", getCS(), getIP());
136  // setCS(0xF000);
137  // setIP(0xFFF0);
138 
139  // /* Enable interrupts */
140  // setIF(1);
141 
142  /* Initialize the Upper Memory Area Manager */
143  if (!UmaMgrInitialize())
144  {
145  wprintf(L"FATAL: Failed to initialize the UMA manager.\n");
146  return FALSE;
147  }
148 
149  return Success;
150 }
BOP_GETMEMSIZE
#define BOP_GETMEMSIZE
Definition: bios.c:36
strtoul
UINT32 strtoul(const char *String, char **Terminator, UINT32 Base)
Definition: utclib.c:696
strlen
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
TRUE
#define TRUE
Definition: types.h:120
RegisterBop
VOID RegisterBop(BYTE BopCode, EMULATOR_BOP_PROC BopHandler)
Definition: bop.c:29
strncpy
char * strncpy(char *DstString, const char *SrcString, ACPI_SIZE Count)
Definition: utclib.c:427
CHAR
char CHAR
Definition: xmlstorage.h:175
ARRAYSIZE
#define ARRAYSIZE(array)
Definition: filtermapper.c:47
Bda
PBIOS_DATA_AREA Bda
Definition: bios.c:42
GetLastError
DWORD WINAPI GetLastError(VOID)
Definition: except.c:1040
wprintf
#define wprintf(...)
Definition: whoami.c:18
LPSTR
char * LPSTR
Definition: xmlstorage.h:182
Bios32Initialize
BOOLEAN Bios32Initialize(VOID)
Definition: bios32.c:1242
SEG_OFF_TO_PTR
#define SEG_OFF_TO_PTR(seg, off)
Definition: emulator.h:28
LoadBios
BOOLEAN LoadBios(IN PCSTR BiosFileName, OUT PVOID *BiosLocation OPTIONAL, OUT PULONG BiosSize OPTIONAL)
Definition: rom.c:169
ULONG_PTR
uint32_t ULONG_PTR
Definition: typedefs.h:65
Bct
PBIOS_CONFIG_TABLE Bct
Definition: bios.c:43
PBIOS_CONFIG_TABLE
struct _BIOS_CONFIG_TABLE * PBIOS_CONFIG_TABLE
BOP_RESET
#define BOP_RESET
Definition: bios.c:33
FALSE
#define FALSE
Definition: types.h:117
ptr
static PVOID ptr
Definition: dispmode.c:27
LoadRom
BOOLEAN LoadRom(IN PCSTR RomFileName, IN PVOID RomLocation, OUT PULONG RomSize OPTIONAL)
Definition: rom.c:214
BOOLEAN
unsigned char BOOLEAN
Definition: ProcessorBind.h:185
Bios32Loaded
static BOOLEAN Bios32Loaded
Definition: bios.c:40
LPCSTR
const char * LPCSTR
Definition: xmlstorage.h:183
BOP_EQUIPLIST
#define BOP_EQUIPLIST
Definition: bios.c:35
UmaMgrInitialize
BOOLEAN UmaMgrInitialize(VOID)
Definition: umamgr.c:375
MAX_PATH
#define MAX_PATH
Definition: compat.h:34
L
static const WCHAR L[]
Definition: oid.c:1250
BDA_SEGMENT
#define BDA_SEGMENT
Definition: bios.h:28
WinNtVdmBiosReset
VOID WINAPI WinNtVdmBiosReset(LPWORD Stack)
Definition: bios.c:50
NULL
#define NULL
Definition: types.h:112
setIF
VOID WINAPI setIF(ULONG)
Definition: registers.c:643
strchr
char * strchr(const char *String, int ch)
Definition: utclib.c:501
DPRINT1
#define DPRINT1
Definition: precomp.h:8
PBIOS_DATA_AREA
struct BIOS_DATA_AREA * PBIOS_DATA_AREA
BiosEquipmentService
VOID WINAPI BiosEquipmentService(LPWORD Stack)
Definition: bios32.c:200
BIOS_SEGMENT
#define BIOS_SEGMENT
Definition: bios.h:29
BiosGetMemorySize
VOID WINAPI BiosGetMemorySize(LPWORD Stack)
Definition: bios32.c:206

Referenced by wmain().

◆ C_ASSERT() [1/2]

C_ASSERT ( sizeof(BIOS_DATA_AREA)  = =0x100)

◆ C_ASSERT() [2/2]

C_ASSERT ( sizeof(USER_DATA_AREA)  = =0x34)

Variable Documentation

◆ Bct

PBIOS_CONFIG_TABLE Bct

Definition at line 43 of file bios.c.

Referenced by BiosInitialize().

◆ Bda

PBIOS_DATA_AREA Bda

Definition at line 42 of file bios.c.

Referenced by AllDisksReset(), Bios32Post(), BiosCharPrint(), BiosDiskService(), BiosEquipmentService(), BiosGetMemorySize(), BiosInitialize(), BiosKbdBufferPop(), BiosKbdBufferPush(), BiosKbdBufferTop(), BiosKeyboardIrq(), BiosKeyboardService(), BiosMiscService(), BiosSystemTimerInterrupt(), BiosTimeService(), Dem_BiosCharPrint(), DosFastConOut(), EraseMouseCursor(), InitializeBiosData(), KbdBios32Post(), PaintMouseCursor(), VbeService(), VbeSetExtendedRegisters(), VbeSetExtendedVideoMode(), VgaSetRegisters(), VidBiosDrawGlyph(), VidBiosGetCursorPosition(), VidBiosGetVideoMode(), VidBiosPost(), VidBiosPrintCharacter(), VidBiosScrollWindow(), VidBiosSetCursorPosition(), VidBiosSetCursorShape(), VidBiosSetVideoMode(), VidBiosSetVideoPage(), VidBiosSyncCursorPosition(), and VidBiosVideoService().