mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
361 lines
8.6 KiB
361 lines
8.6 KiB
/*++
|
|
|
|
Copyright (c) 1999-2000 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
n13cfg.c
|
|
|
|
Abstract:
|
|
|
|
This code is NOT part of ARP1394. Rather it is sample code that creates
|
|
the config ROM unit directory for IP/1394-capable devices.
|
|
|
|
It is here simply for safekeeping.
|
|
|
|
Revision History:
|
|
|
|
Who When What
|
|
-------- -------- ----------------------------------------------
|
|
josephj 03-19-99 Created
|
|
|
|
Notes:
|
|
|
|
--*/
|
|
#include <precomp.h>
|
|
|
|
#ifdef TESTPROGRAM
|
|
|
|
ULONG
|
|
Bus1394Crc16(
|
|
IN ULONG data,
|
|
IN ULONG check
|
|
);
|
|
|
|
|
|
ULONG
|
|
Bus1394CalculateCrc(
|
|
IN PULONG Quadlet,
|
|
IN ULONG length
|
|
);
|
|
|
|
|
|
// From \nt\private\ntos\dd\wdm\1394\bus\busdef.h
|
|
|
|
//SPEC_ID_KEY_SIGNITURE
|
|
//SOFTWARE_VERSION_KEY_SIGNITURE
|
|
//MODEL_KEY_SIGNITURE
|
|
#define SPEC_ID_KEY_SIGNATURE 0x12
|
|
#define SOFTWARE_VERSION_KEY_SIGNATURE 0x13
|
|
// #define MODEL_ID_KEY_SIGNATURE 0x17
|
|
//#define VENDOR_KEY_SIGNATURE 0x81
|
|
#define TEXTUAL_LEAF_INDIRECT_KEY_SIGNATURE 0x81
|
|
#define MODEL_KEY_SIGNATURE 0x82
|
|
//#define UNIT_DIRECTORY_KEY_SIGNATURE 0xd1
|
|
//#define UNIT_DEP_DIR_KEY_SIGNATURE 0xd4
|
|
|
|
//
|
|
// IEEE 1212 Offset entry definition
|
|
//
|
|
typedef struct _OFFSET_ENTRY {
|
|
ULONG OE_Offset:24;
|
|
ULONG OE_Key:8;
|
|
} OFFSET_ENTRY, *POFFSET_ENTRY;
|
|
|
|
//
|
|
// IEEE 1212 Immediate entry definition
|
|
//
|
|
typedef struct _IMMEDIATE_ENTRY {
|
|
ULONG IE_Value:24;
|
|
ULONG IE_Key:8;
|
|
} IMMEDIATE_ENTRY, *PIMMEDIATE_ENTRY;
|
|
|
|
//
|
|
// IEEE 1212 Directory definition
|
|
//
|
|
typedef struct _DIRECTORY_INFO {
|
|
union {
|
|
USHORT DI_CRC;
|
|
USHORT DI_Saved_Length;
|
|
} u;
|
|
USHORT DI_Length;
|
|
} DIRECTORY_INFO, *PDIRECTORY_INFO;
|
|
|
|
#define bswap(_val) SWAPBYTES_ULONG(_val)
|
|
|
|
|
|
// Some NIC1394-specific constants
|
|
//
|
|
#define NIC1394_UnitSpecIdValue 0x5E // For "IANA"
|
|
#define NIC1394_UnitSwVersionValue 0x1 // IP/1394 Spec
|
|
#define NIC1394_ModelSpecIdValue 0x7bb0cf // Random (TBD by Microsoft)
|
|
#define NIC1394_ModelName L"NIC1394"
|
|
|
|
|
|
typedef struct _NIC1394_CONFIG_ROM
|
|
{
|
|
// The Unit Directory
|
|
//
|
|
struct
|
|
{
|
|
DIRECTORY_INFO Info;
|
|
struct
|
|
{
|
|
IMMEDIATE_ENTRY SpecId;
|
|
IMMEDIATE_ENTRY SwVersion;
|
|
IMMEDIATE_ENTRY ModelId;
|
|
OFFSET_ENTRY ModelIdTextOffset;
|
|
} contents;
|
|
|
|
} unit_dir;
|
|
|
|
// The ModelId Text Leaf Directory
|
|
//
|
|
struct
|
|
{
|
|
DIRECTORY_INFO Info;
|
|
struct
|
|
{
|
|
IMMEDIATE_ENTRY SpecId;
|
|
ULONG LanguageId;
|
|
ULONG Text[4]; // L"NIC1394"
|
|
} contents;
|
|
|
|
} model_text_dir;
|
|
|
|
} NIC1394_CONFIG_ROM, *PNIC1394_CONFIG_ROM;
|
|
|
|
|
|
VOID
|
|
InitializeNic1394ConfigRom(
|
|
IN PNIC1394_CONFIG_ROM Nic1394ConfigRom
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine initializes the configuration ROM unit directory (and the
|
|
leaf directories it references) for NIC1394, the IP/1394-capable device.
|
|
|
|
Arguments:
|
|
|
|
Nic1394ConfigRom - Pointer to the unitialized config ROM structure.
|
|
|
|
Return Value:
|
|
|
|
None
|
|
|
|
--*/
|
|
{
|
|
PNIC1394_CONFIG_ROM pCR = Nic1394ConfigRom;
|
|
INT i;
|
|
|
|
RtlZeroMemory(pCR, sizeof(*pCR));
|
|
|
|
//
|
|
// Initialize the unit directory header.
|
|
//
|
|
pCR->unit_dir.Info.DI_Length = sizeof(pCR->unit_dir.contents)/
|
|
sizeof(ULONG);
|
|
|
|
//
|
|
// Initialize the entries of the unit directory.
|
|
//
|
|
pCR->unit_dir.contents.SpecId.IE_Key = SPEC_ID_KEY_SIGNATURE;
|
|
pCR->unit_dir.contents.SpecId.IE_Value = NIC1394_UnitSpecIdValue;
|
|
pCR->unit_dir.contents.SwVersion.IE_Key = SOFTWARE_VERSION_KEY_SIGNATURE;
|
|
pCR->unit_dir.contents.SwVersion.IE_Value = NIC1394_UnitSwVersionValue;
|
|
pCR->unit_dir.contents.ModelId.IE_Key = MODEL_KEY_SIGNATURE;
|
|
pCR->unit_dir.contents.ModelId.IE_Value = NIC1394_ModelSpecIdValue;
|
|
pCR->unit_dir.contents.ModelIdTextOffset.OE_Key
|
|
= TEXTUAL_LEAF_INDIRECT_KEY_SIGNATURE;
|
|
pCR->unit_dir.contents.ModelIdTextOffset.OE_Offset
|
|
= ( FIELD_OFFSET(NIC1394_CONFIG_ROM, model_text_dir)
|
|
-FIELD_OFFSET(NIC1394_CONFIG_ROM, unit_dir.contents.ModelIdTextOffset))
|
|
/ sizeof (ULONG);
|
|
|
|
// Initialize the model text directory header.
|
|
//
|
|
pCR->model_text_dir.Info.DI_Length = sizeof(pCR->model_text_dir.contents)/
|
|
sizeof(ULONG);
|
|
|
|
//
|
|
// Initialize the model text directory contents
|
|
//
|
|
pCR->model_text_dir.contents.SpecId.IE_Key = 0x80; // For "text leaf"
|
|
pCR->model_text_dir.contents.SpecId.IE_Value= 0x0; // For "text leaf"
|
|
pCR->model_text_dir.contents.LanguageId = 0x409; // For "unicode"
|
|
ASSERT(sizeof(pCR->model_text_dir.contents.Text)>=sizeof(NIC1394_ModelName));
|
|
RtlCopyMemory(
|
|
pCR->model_text_dir.contents.Text,
|
|
NIC1394_ModelName,
|
|
sizeof(NIC1394_ModelName)
|
|
);
|
|
|
|
//
|
|
// Now convert into over-the-wire format (watch out for the unicode string in
|
|
// pCR->model_test_dir.contents.Text.
|
|
//
|
|
|
|
//
|
|
// Byte swap the unicode strings here, cuz we're gonna byte swap
|
|
// everything down below - so it'll come out a wash.
|
|
//
|
|
|
|
for (i=0; i < sizeof(pCR->model_text_dir.contents.Text)/sizeof(ULONG); i++)
|
|
{
|
|
pCR->model_text_dir.contents.Text[i] =
|
|
bswap(pCR->model_text_dir.contents.Text[i]);
|
|
|
|
}
|
|
|
|
//
|
|
// Now we've got to byte swap the entire config rom so other
|
|
// nodes can read it correctly from accross the bus.
|
|
// We need to do this BEFORE computing the CRC.
|
|
//
|
|
|
|
for (i=0; i < (sizeof(*pCR)/sizeof(ULONG)); i++)
|
|
{
|
|
((PULONG) pCR)[i] = bswap(((PULONG) pCR)[i]);
|
|
}
|
|
|
|
//
|
|
// Compute the following CRC:
|
|
//
|
|
// pCR->unit_dir.Info.DI_CRC
|
|
// pCR->model_text_dir.Info.DI_CRC
|
|
//
|
|
// NOTE: we have bswapped all cfg rom, so we need to temporarily "unbswap"
|
|
// the two DIRECTORY_INFOs to set the CRC.
|
|
//
|
|
{
|
|
DIRECTORY_INFO Info;
|
|
|
|
|
|
Info = pCR->unit_dir.Info; // Struct copy.
|
|
*(PULONG)&Info = bswap(*(PULONG)&Info); // "unbswap"
|
|
Info.u.DI_CRC = (USHORT) Bus1394CalculateCrc(
|
|
(PULONG)&(pCR->unit_dir.contents),
|
|
Info.DI_Length
|
|
);
|
|
*(PULONG)(&pCR->unit_dir.Info) = bswap (*(PULONG)&Info); // "re-bswap"
|
|
|
|
|
|
Info = pCR->model_text_dir.Info; // Struct copy.
|
|
*(PULONG)&Info = bswap(*(PULONG)&Info); // "unbeswap"
|
|
Info.u.DI_CRC = (USHORT) Bus1394CalculateCrc(
|
|
(PULONG)&(pCR->model_text_dir.contents),
|
|
Info.DI_Length
|
|
);
|
|
*(PULONG)(&pCR->model_text_dir.Info) = bswap (*(PULONG)&Info); // "re-bswap"
|
|
}
|
|
}
|
|
|
|
//
|
|
// From bus\buspnp.c
|
|
//
|
|
|
|
ULONG
|
|
Bus1394CalculateCrc(
|
|
IN PULONG Quadlet,
|
|
IN ULONG length
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine calculates a CRC for the pointer to the Quadlet data.
|
|
|
|
Arguments:
|
|
|
|
Quadlet - Pointer to data to CRC
|
|
|
|
length - length of data to CRC
|
|
|
|
Return Value:
|
|
|
|
returns the CRC
|
|
|
|
--*/
|
|
|
|
{
|
|
|
|
LONG temp;
|
|
ULONG index;
|
|
|
|
temp = index = 0;
|
|
|
|
while (index < length) {
|
|
|
|
temp = Bus1394Crc16(Quadlet[index++], temp);
|
|
|
|
}
|
|
|
|
return (temp);
|
|
|
|
}
|
|
|
|
|
|
ULONG
|
|
Bus1394Crc16(
|
|
IN ULONG data,
|
|
IN ULONG check
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine derives the 16 bit CRC as defined by IEEE 1212
|
|
clause 8.1.5. (ISO/IEC 13213) First edition 1994-10-05.
|
|
|
|
Arguments:
|
|
|
|
data - ULONG data to derive CRC from
|
|
|
|
check - check value
|
|
|
|
Return Value:
|
|
|
|
Returns CRC.
|
|
|
|
--*/
|
|
|
|
{
|
|
|
|
LONG shift, sum, next;
|
|
|
|
|
|
for (next=check, shift=28; shift >= 0; shift -=4) {
|
|
|
|
sum = ((next >> 12) ^ (data >> shift)) & 0xf;
|
|
next = (next << 4) ^ (sum << 12) ^ (sum << 5) ^ (sum);
|
|
|
|
}
|
|
|
|
return (next & 0xFFFF);
|
|
|
|
}
|
|
|
|
void DumpCfgRomCRC(void)
|
|
{
|
|
NIC1394_CONFIG_ROM Net1394ConfigRom;
|
|
unsigned char *pb = (unsigned char*) &Net1394ConfigRom;
|
|
INT i;
|
|
|
|
InitializeNic1394ConfigRom(&Net1394ConfigRom);
|
|
|
|
printf("unsigned char Net1394ConfigRom[%lu] = {", sizeof(Net1394ConfigRom));
|
|
for (i=0; i<(sizeof(Net1394ConfigRom)-1); i++)
|
|
{
|
|
if ((i%8) == 0)
|
|
{
|
|
printf("\n\t");
|
|
}
|
|
printf("0x%02lx, ", pb[i]);
|
|
}
|
|
printf("0x%02lx\n};\n", pb[i]);
|
|
}
|
|
#endif // TESTPROGRAM
|