ReactOS 0.4.15-dev-8131-g4988de4
envir.h File Reference
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Classes

struct  _ATAG_HEADER
 
struct  _ATAG_CORE
 
struct  _ATAG_MEM
 
struct  _ATAG_REVISION
 
struct  _ATAG_INITRD2
 
struct  _ATAG_CMDLINE
 
struct  _ATAG
 

Macros

#define ATAG_NONE   0x00000000
 
#define ATAG_CORE   0x54410001
 
#define ATAG_MEM   0x54410002
 
#define ATAG_VIDEOTEXT   0x54410003
 
#define ATAG_RAMDISK   0x54410004
 
#define ATAG_INITRD2   0x54420005
 
#define ATAG_SERIAL   0x54410006
 
#define ATAG_REVISION   0x54410007
 
#define ATAG_VIDEOLFB   0x54410008
 
#define ATAG_CMDLINE   0x54410009
 

Typedefs

typedef struct _ATAG_HEADER ATAG_HEADER
 
typedef struct _ATAG_HEADERPATAG_HEADER
 
typedef struct _ATAG_CORE ATAG_CORE
 
typedef struct _ATAG_COREPATAG_CORE
 
typedef struct _ATAG_MEM ATAG_MEM
 
typedef struct _ATAG_MEMPATAG_MEM
 
typedef struct _ATAG_REVISION ATAG_REVISION
 
typedef struct _ATAG_REVISIONPATAG_REVISION
 
typedef struct _ATAG_INITRD2 ATAG_INITRD2
 
typedef struct _ATAG_INITRD2PATAG_INITRD2
 
typedef struct _ATAG_CMDLINE ATAG_CMDLINE
 
typedef struct _ATAG_CMDLINEPATAG_CMDLINE
 
typedef struct _ATAG ATAG
 
typedef struct _ATAGPATAG
 

Functions

PCHAR NTAPI LlbEnvRead (IN PCHAR Option)
 
BOOLEAN NTAPI LlbEnvGetRamDiskInformation (IN PULONG Base, IN PULONG Size)
 
VOID NTAPI LlbEnvGetMemoryInformation (IN PULONG Base, IN PULONG Size)
 
VOID NTAPI LlbEnvParseArguments (IN PATAG Arguments)
 

Macro Definition Documentation

◆ ATAG_CMDLINE

#define ATAG_CMDLINE   0x54410009

Definition at line 66 of file envir.h.

◆ ATAG_CORE

#define ATAG_CORE   0x54410001

Definition at line 58 of file envir.h.

◆ ATAG_INITRD2

#define ATAG_INITRD2   0x54420005

Definition at line 62 of file envir.h.

◆ ATAG_MEM

#define ATAG_MEM   0x54410002

Definition at line 59 of file envir.h.

◆ ATAG_NONE

#define ATAG_NONE   0x00000000

Definition at line 57 of file envir.h.

◆ ATAG_RAMDISK

#define ATAG_RAMDISK   0x54410004

Definition at line 61 of file envir.h.

◆ ATAG_REVISION

#define ATAG_REVISION   0x54410007

Definition at line 64 of file envir.h.

◆ ATAG_SERIAL

#define ATAG_SERIAL   0x54410006

Definition at line 63 of file envir.h.

◆ ATAG_VIDEOLFB

#define ATAG_VIDEOLFB   0x54410008

Definition at line 65 of file envir.h.

◆ ATAG_VIDEOTEXT

#define ATAG_VIDEOTEXT   0x54410003

Definition at line 60 of file envir.h.

Typedef Documentation

◆ ATAG

typedef struct _ATAG ATAG

◆ ATAG_CMDLINE

◆ ATAG_CORE

◆ ATAG_HEADER

◆ ATAG_INITRD2

◆ ATAG_MEM

◆ ATAG_REVISION

◆ PATAG

typedef struct _ATAG * PATAG

◆ PATAG_CMDLINE

◆ PATAG_CORE

◆ PATAG_HEADER

◆ PATAG_INITRD2

◆ PATAG_MEM

◆ PATAG_REVISION

Function Documentation

◆ LlbEnvGetMemoryInformation()

VOID NTAPI LlbEnvGetMemoryInformation ( IN PULONG  Base,
IN PULONG  Size 
)

Definition at line 97 of file envir.c.

99{
100 /* Return RAM information */
103}
ULONG LlbEnvHwMemSize
Definition: envir.c:13
ULONG LlbEnvHwMemStart
Definition: envir.c:12
_In_opt_ ULONG Base
Definition: rtlfuncs.h:2439
_Must_inspect_result_ _In_ WDFDEVICE _In_ PWDF_DEVICE_PROPERTY_DATA _In_ DEVPROPTYPE _In_ ULONG Size
Definition: wdfdevice.h:4533

Referenced by LlbHwBuildMemoryMap().

◆ LlbEnvGetRamDiskInformation()

BOOLEAN NTAPI LlbEnvGetRamDiskInformation ( IN PULONG  Base,
IN PULONG  Size 
)

Definition at line 107 of file envir.c.

109{
110 /* Do we have a ramdisk? */
111 if (LlbEnvRamDiskSize == 0)
112 {
113 /* No */
114 *Base = 0;
115 *Size = 0;
116 return FALSE;
117 }
118
119 /* Return ramdisk information */
122 return TRUE;
123}
#define TRUE
Definition: types.h:120
#define FALSE
Definition: types.h:117
ULONG LlbEnvRamDiskSize
Definition: envir.c:15
ULONG LlbEnvRamDiskStart
Definition: envir.c:14

Referenced by LlbHwBuildMemoryMap(), and LlbHwLoadOsLoaderFromRam().

◆ LlbEnvParseArguments()

VOID NTAPI LlbEnvParseArguments ( IN PATAG  Arguments)

Definition at line 22 of file envir.c.

23{
24 PATAG Atag;
25
26 /* Parse the ATAGs */
27 Atag = Arguments;
28 while (Atag->Hdr.Size)
29 {
30 /* Check tag type */
31 switch (Atag->Hdr.Tag)
32 {
33 case ATAG_CORE:
34
35 /* Save page size */
37 break;
38
39 case ATAG_REVISION:
40
41 /* Save page size */
43 break;
44
45 case ATAG_MEM:
46
47 /* Save RAM start and size */
49 LlbEnvHwMemSize += Atag->u.Mem.Size;
50 break;
51
52 case ATAG_INITRD2:
53
54 /* Save RAMDISK start and size */
57
58#ifdef _BEAGLE_
59 /* Make sure it's 16MB-aligned */
60 LlbEnvRamDiskSize = (LlbEnvRamDiskSize + (16 * 1024 * 1024) - 1)
61 &~ ((16 * 1024 * 1024) - 1);
62
63 /* The RAMDISK actually starts 16MB later */
64 LlbEnvRamDiskStart += 16 * 1024 * 1024;
65 LlbEnvRamDiskSize -= 16 * 1024 * 1024;
66#endif
67 break;
68
69 case ATAG_CMDLINE:
70
71 /* Save command line */
73 Atag->u.CmdLine.CmdLine,
74 Atag->Hdr.Size * sizeof(ULONG));
75 break;
76
77 /* Nothing left to handle */
78 case ATAG_NONE:
79 default:
80 break;
81 }
82
83 /* Next tag */
84 Atag = (PATAG)((PULONG)Atag + Atag->Hdr.Size);
85 }
86
87 /* For debugging */
88 DbgPrint("[BOOTROM] Board Revision: %lx PageSize: %dKB RAM: %dMB CMDLINE: %s\n"
89 "[RAMDISK] Base: %lx Size: %dMB\n",
91 LlbEnvHwPageSize / 1024, LlbEnvHwMemSize / 1024 / 1024, LlbEnvCmdLine,
93}
char * strncpy(char *DstString, const char *SrcString, ACPI_SIZE Count)
Definition: utclib.c:427
CHAR LlbEnvCmdLine[256]
Definition: envir.c:17
ULONG LlbEnvHwRevision
Definition: envir.c:16
ULONG LlbEnvHwPageSize
Definition: envir.c:11
#define ATAG_REVISION
Definition: envir.h:64
struct _ATAG * PATAG
#define ATAG_NONE
Definition: envir.h:57
#define ATAG_MEM
Definition: envir.h:59
#define ATAG_CMDLINE
Definition: envir.h:66
#define ATAG_CORE
Definition: envir.h:58
#define ATAG_INITRD2
Definition: envir.h:62
#define DbgPrint
Definition: hal.h:12
CHAR CmdLine[ANYSIZE_ARRAY]
Definition: envir.h:41
ULONG PageSize
Definition: envir.h:18
ULONG Tag
Definition: envir.h:12
ULONG Size
Definition: envir.h:11
ULONG Start
Definition: envir.h:35
ULONG Size
Definition: envir.h:36
ULONG Start
Definition: envir.h:25
ULONG Size
Definition: envir.h:24
ULONG Rev
Definition: envir.h:30
Definition: envir.h:45
ATAG_REVISION Revision
Definition: envir.h:51
union _ATAG::@110 u
ATAG_CORE Core
Definition: envir.h:49
ATAG_MEM Mem
Definition: envir.h:50
ATAG_HEADER Hdr
Definition: envir.h:46
ATAG_CMDLINE CmdLine
Definition: envir.h:53
ATAG_INITRD2 InitRd2
Definition: envir.h:52
uint32_t * PULONG
Definition: typedefs.h:59
uint32_t ULONG
Definition: typedefs.h:59

Referenced by LlbStartup().

◆ LlbEnvRead()

PCHAR NTAPI LlbEnvRead ( IN PCHAR  Option)

Definition at line 127 of file envir.c.

128{
129 PCHAR ValuePointer;
130 ULONG Length = 0;
131
132 /* Search for the value name */
133 ValuePointer = strstr(LlbEnvCmdLine, ValueName);
134 if (ValuePointer)
135 {
136 /* Get the value data and its length */
137 ValuePointer += strlen(ValueName) + 1;
138 if (strchr(ValuePointer, ','))
139 {
140 /* Stop before next parameter */
141 Length = strchr(ValuePointer, ',') - ValuePointer;
142 }
143 else
144 {
145 /* Stop before the string ends */
146 Length = strlen(ValuePointer);
147 }
148
149 /* Copy it */
150 strncpy(LlbValueData, ValuePointer, Length);
151 }
152
153 /* Terminate the data */
155
156 /* Return the data */
157 return LlbValueData;
158}
char * strstr(char *String1, char *String2)
Definition: utclib.c:653
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
char * strchr(const char *String, int ch)
Definition: utclib.c:501
CHAR LlbValueData[32]
Definition: envir.c:18
#define ANSI_NULL
_In_ ULONG _In_ ULONG _In_ ULONG Length
Definition: ntddpcm.h:102
char * PCHAR
Definition: typedefs.h:51
_Must_inspect_result_ _In_ WDFKEY _In_ PCUNICODE_STRING ValueName
Definition: wdfregistry.h:243

Referenced by LlbHwLoadOsLoaderFromRam(), and LlbLoadOsLoader().