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wine/dlls/winaspi/winaspi32.c
Patrik Stridvall 3c0211f969 Cleanup code that is strange or difficult to parse.
2001-09-11 00:32:32 +00:00

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#include "config.h"
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <memory.h>
#include <unistd.h>
#include "winbase.h"
#include "aspi.h"
#include "wnaspi32.h"
#include "winescsi.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(aspi);
/* FIXME!
* 1) Residual byte length reporting not handled
* 2) Make this code re-entrant for multithreading
* -- Added CriticalSection to OpenDevices function
* 3) Only linux supported so far
* 4) Leaves sg devices open. This may or may not be okay. A better solution
* would be to close the file descriptors when the thread/process using
* them no longer needs them.
*/
#ifdef linux
static ASPI_DEVICE_INFO *ASPI_open_devices = NULL;
static CRITICAL_SECTION ASPI_CritSection = CRITICAL_SECTION_INIT("ASPI_CritSection");
#endif /* defined(linux) */
BOOL WINAPI WNASPI32_LibMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID fImpLoad)
{
#ifdef linux
switch( fdwReason )
{
case DLL_PROCESS_ATTACH:
SCSI_Init();
break;
case DLL_PROCESS_DETACH:
DeleteCriticalSection( &ASPI_CritSection );
break;
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
break;
}
#endif /* defined(linux) */
return TRUE;
}
#ifdef linux
static int
ASPI_OpenDevice(SRB_ExecSCSICmd *prb)
{
int fd;
DWORD hc;
ASPI_DEVICE_INFO *curr;
/* search list of devices to see if we've opened it already.
* There is not an explicit open/close in ASPI land, so hopefully
* keeping a device open won't be a problem.
*/
EnterCriticalSection(&ASPI_CritSection);
for (curr = ASPI_open_devices; curr; curr = curr->next) {
if (curr->hostId == prb->SRB_HaId &&
curr->target == prb->SRB_Target &&
curr->lun == prb->SRB_Lun) {
LeaveCriticalSection(&ASPI_CritSection);
return curr->fd;
}
}
LeaveCriticalSection(&ASPI_CritSection);
if (prb->SRB_HaId > ASPI_GetNumControllers())
return -1;
hc = ASPI_GetHCforController( prb->SRB_HaId );
fd = SCSI_OpenDevice( HIWORD(hc), LOWORD(hc), prb->SRB_Target, prb->SRB_Lun);
if (fd == -1)
return -1;
/* device is now open */
/* FIXME: Let users specify SCSI timeout in registry */
SCSI_LinuxSetTimeout( fd, SCSI_DEFAULT_TIMEOUT );
curr = HeapAlloc( GetProcessHeap(), 0, sizeof(ASPI_DEVICE_INFO) );
curr->fd = fd;
curr->hostId = prb->SRB_HaId;
curr->target = prb->SRB_Target;
curr->lun = prb->SRB_Lun;
/* insert new record at beginning of open device list */
EnterCriticalSection(&ASPI_CritSection);
curr->next = ASPI_open_devices;
ASPI_open_devices = curr;
LeaveCriticalSection(&ASPI_CritSection);
return fd;
}
static void
ASPI_DebugPrintCmd(SRB_ExecSCSICmd *prb)
{
BYTE cmd;
int i;
BYTE *cdb;
switch (prb->CDBByte[0]) {
case CMD_INQUIRY:
TRACE("INQUIRY {\n");
TRACE("\tEVPD: %d\n", prb->CDBByte[1] & 1);
TRACE("\tLUN: %d\n", (prb->CDBByte[1] & 0xc) >> 1);
TRACE("\tPAGE CODE: %d\n", prb->CDBByte[2]);
TRACE("\tALLOCATION LENGTH: %d\n", prb->CDBByte[4]);
TRACE("\tCONTROL: %d\n", prb->CDBByte[5]);
TRACE("}\n");
break;
case CMD_SCAN_SCAN:
TRACE("Transfer Length: %d\n", prb->CDBByte[4]);
break;
}
TRACE("Host Adapter: %d\n", prb->SRB_HaId);
TRACE("Flags: %d\n", prb->SRB_Flags);
if (TARGET_TO_HOST(prb)) {
TRACE("\tData transfer: Target to host. Length checked.\n");
}
else if (HOST_TO_TARGET(prb)) {
TRACE("\tData transfer: Host to target. Length checked.\n");
}
else if (NO_DATA_TRANSFERED(prb)) {
TRACE("\tData transfer: none\n");
}
else {
WARN("\tTransfer by scsi cmd. Length not checked.\n");
}
TRACE("\tResidual byte length reporting %s\n", prb->SRB_Flags & 0x4 ? "enabled" : "disabled");
TRACE("\tLinking %s\n", prb->SRB_Flags & 0x2 ? "enabled" : "disabled");
TRACE("\tPosting %s\n", prb->SRB_Flags & 0x1 ? "enabled" : "disabled");
TRACE("Target: %d\n", prb->SRB_Target);
TRACE("Lun: %d\n", prb->SRB_Lun);
TRACE("BufLen: %ld\n", prb->SRB_BufLen);
TRACE("SenseLen: %d\n", prb->SRB_SenseLen);
TRACE("BufPtr: %p\n", prb->SRB_BufPointer);
TRACE("CDB Length: %d\n", prb->SRB_CDBLen);
TRACE("POST Proc: %lx\n", (DWORD) prb->SRB_PostProc);
cdb = &prb->CDBByte[0];
cmd = prb->CDBByte[0];
if (TRACE_ON(aspi)) {
DPRINTF("CDB buffer[");
for (i = 0; i < prb->SRB_CDBLen; i++) {
if (i != 0) DPRINTF(",");
DPRINTF("%02x", *cdb++);
}
DPRINTF("]\n");
}
}
static void
ASPI_PrintCDBArea(SRB_ExecSCSICmd *prb)
{
if (TRACE_ON(aspi))
{
int i;
DPRINTF("CDB[");
for (i = 0; i < prb->SRB_CDBLen; i++) {
if (i) DPRINTF(",");
DPRINTF("%02x", prb->CDBByte[i]);
}
DPRINTF("]\n");
}
}
static void
ASPI_PrintSenseArea(SRB_ExecSCSICmd *prb)
{
int i;
BYTE *rqbuf = prb->SenseArea;
if (TRACE_ON(aspi))
{
DPRINTF("Request Sense reports:\n");
if ((rqbuf[0]&0x7f)!=0x70) {
DPRINTF("\tInvalid sense header: 0x%02x instead of 0x70\n", rqbuf[0]&0x7f);
return;
}
DPRINTF("\tCurrent command read filemark: %s\n",(rqbuf[2]&0x80)?"yes":"no");
DPRINTF("\tEarly warning passed: %s\n",(rqbuf[2]&0x40)?"yes":"no");
DPRINTF("\tIncorrect blocklength: %s\n",(rqbuf[2]&0x20)?"yes":"no");
DPRINTF("\tSense Key: %d\n",rqbuf[2]&0xf);
if (rqbuf[0]&0x80)
DPRINTF("\tResidual Length: %d\n",rqbuf[3]*0x1000000+rqbuf[4]*0x10000+rqbuf[5]*0x100+rqbuf[6]);
DPRINTF("\tAdditional Sense Length: %d\n",rqbuf[7]);
DPRINTF("\tAdditional Sense Code: %d\n",rqbuf[12]);
DPRINTF("\tAdditional Sense Code Qualifier: %d\n",rqbuf[13]);
if (rqbuf[15]&0x80) {
DPRINTF("\tIllegal Param is in %s\n",(rqbuf[15]&0x40)?"the CDB":"the Data Out Phase");
if (rqbuf[15]&0x8) {
DPRINTF("Pointer at %d, bit %d\n",rqbuf[16]*256+rqbuf[17],rqbuf[15]&0x7);
}
}
DPRINTF("SenseArea[");
for (i = 0; i < prb->SRB_SenseLen; i++) {
if (i) DPRINTF(",");
DPRINTF("%02x", *rqbuf++);
}
DPRINTF("]\n");
}
}
static void
ASPI_DebugPrintResult(SRB_ExecSCSICmd *prb)
{
TRACE("SRB_Status: %x\n", prb->SRB_Status);
TRACE("SRB_HaStat: %x\n", prb->SRB_HaStat);
TRACE("SRB_TargStat: %x\n", prb->SRB_TargStat);
switch (prb->CDBByte[0]) {
case CMD_INQUIRY:
TRACE("Vendor: '%s'\n", prb->SRB_BufPointer + INQUIRY_VENDOR);
break;
case CMD_TEST_UNIT_READY:
ASPI_PrintSenseArea(prb);
break;
}
}
/* Posting must be done in such a way that as soon as the SRB_Status is set
* we don't touch the SRB anymore because it could possibly be freed
* if the app is doing ASPI polling
*/
static DWORD
WNASPI32_DoPosting( SRB_ExecSCSICmd *lpPRB, DWORD status )
{
void (*SRB_PostProc)() = lpPRB->SRB_PostProc;
BYTE SRB_Flags = lpPRB->SRB_Flags;
if( status == SS_PENDING )
{
WARN("Tried posting SS_PENDING\n");
return SS_PENDING;
}
lpPRB->SRB_Status = status;
/* lpPRB is NOT safe, it could be freed in another thread */
if (SRB_PostProc)
{
if (SRB_Flags & 0x1)
{
TRACE("Post Routine (%lx) called\n", (DWORD) SRB_PostProc);
/* Even though lpPRB could have been freed by
* the program.. that's unlikely if it planned
* to use it in the PostProc
*/
(*SRB_PostProc)(lpPRB);
}
else if (SRB_Flags & SRB_EVENT_NOTIFY) {
TRACE("Setting event %04x\n", (HANDLE)SRB_PostProc);
SetEvent((HANDLE)SRB_PostProc);
}
}
return SS_PENDING;
}
static WORD
ASPI_ExecScsiCmd(SRB_ExecSCSICmd *lpPRB)
{
struct sg_header *sg_hd, *sg_reply_hdr;
WORD ret;
DWORD status;
int in_len, out_len;
int error_code = 0;
int fd;
DWORD SRB_Status;
/* FIXME: hackmode */
#define MAKE_TARGET_TO_HOST(lpPRB) \
if (!TARGET_TO_HOST(lpPRB)) { \
WARN("program was not sending target_to_host for cmd %x (flags=%x),correcting.\n",lpPRB->CDBByte[0],lpPRB->SRB_Flags); \
lpPRB->SRB_Flags |= 0x08; \
}
#define MAKE_HOST_TO_TARGET(lpPRB) \
if (!HOST_TO_TARGET(lpPRB)) { \
WARN("program was not sending host_to_target for cmd %x (flags=%x),correcting.\n",lpPRB->CDBByte[0],lpPRB->SRB_Flags); \
lpPRB->SRB_Flags |= 0x10; \
}
switch (lpPRB->CDBByte[0]) {
case 0x12: /* INQUIRY */
case 0x5a: /* MODE_SENSE_10 */
case 0xa4: /* REPORT_KEY (DVD) MMC-2 */
case 0xad: /* READ DVD STRUCTURE MMC-2 */
MAKE_TARGET_TO_HOST(lpPRB)
break;
case 0xa3: /* SEND KEY (DVD) MMC-2 */
MAKE_HOST_TO_TARGET(lpPRB)
break;
default:
if ((((lpPRB->SRB_Flags & 0x18) == 0x00) ||
((lpPRB->SRB_Flags & 0x18) == 0x18)
) && lpPRB->SRB_BufLen
) {
FIXME("command 0x%02x, no data transfer specified, but buflen is %ld!!!\n",lpPRB->CDBByte[0],lpPRB->SRB_BufLen);
}
break;
}
ASPI_DebugPrintCmd(lpPRB);
if (lpPRB->SRB_HaId > ASPI_GetNumControllers()) {
ERR("Failed: Wanted hostadapter %d, but we have only %d.\n",
lpPRB->SRB_HaId,ASPI_GetNumControllers()
);
return WNASPI32_DoPosting( lpPRB, SS_INVALID_HA );
}
fd = ASPI_OpenDevice(lpPRB);
if (fd == -1) {
return WNASPI32_DoPosting( lpPRB, SS_NO_DEVICE );
}
sg_hd = NULL;
sg_reply_hdr = NULL;
lpPRB->SRB_Status = SS_PENDING;
if (!lpPRB->SRB_CDBLen) {
ERR("Failed: lpPRB->SRB_CDBLen = 0.\n");
return WNASPI32_DoPosting( lpPRB, SS_INVALID_SRB );
}
/* build up sg_header + scsi cmd */
if (HOST_TO_TARGET(lpPRB)) {
/* send header, command, and then data */
in_len = SCSI_OFF + lpPRB->SRB_CDBLen + lpPRB->SRB_BufLen;
sg_hd = (struct sg_header *) HeapAlloc(GetProcessHeap(), 0, in_len);
memset(sg_hd, 0, SCSI_OFF);
memcpy(sg_hd + 1, &lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
if (lpPRB->SRB_BufLen) {
memcpy(((BYTE *) sg_hd) + SCSI_OFF + lpPRB->SRB_CDBLen, lpPRB->SRB_BufPointer, lpPRB->SRB_BufLen);
}
}
else {
/* send header and command - no data */
in_len = SCSI_OFF + lpPRB->SRB_CDBLen;
sg_hd = (struct sg_header *) HeapAlloc(GetProcessHeap(), 0, in_len);
memset(sg_hd, 0, SCSI_OFF);
memcpy(sg_hd + 1, &lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
}
if (TARGET_TO_HOST(lpPRB)) {
out_len = SCSI_OFF + lpPRB->SRB_BufLen;
sg_reply_hdr = (struct sg_header *) HeapAlloc(GetProcessHeap(), 0, out_len);
memset(sg_reply_hdr, 0, SCSI_OFF);
sg_hd->reply_len = out_len;
}
else {
out_len = SCSI_OFF;
sg_reply_hdr = (struct sg_header *) HeapAlloc(GetProcessHeap(), 0, out_len);
memset(sg_reply_hdr, 0, SCSI_OFF);
sg_hd->reply_len = out_len;
}
SCSI_Fix_CMD_LEN(fd, lpPRB->CDBByte[0], lpPRB->SRB_CDBLen);
if(!SCSI_LinuxDeviceIo( fd,
sg_hd, in_len,
sg_reply_hdr, out_len,
&status) )
{
goto error_exit;
}
if (sg_reply_hdr->result != 0) {
error_code = sg_reply_hdr->result;
WARN("reply header error (%d)\n", sg_reply_hdr->result);
goto error_exit;
}
if (TARGET_TO_HOST(lpPRB) && lpPRB->SRB_BufLen) {
memcpy(lpPRB->SRB_BufPointer, sg_reply_hdr + 1, lpPRB->SRB_BufLen);
}
/* copy in sense buffer to amount that is available in client */
if (lpPRB->SRB_SenseLen) {
int sense_len = lpPRB->SRB_SenseLen;
if (lpPRB->SRB_SenseLen > 16)
sense_len = 16;
/* CDB is fixed in WNASPI32 */
memcpy(lpPRB->SenseArea, &sg_reply_hdr->sense_buffer[0], sense_len);
ASPI_PrintCDBArea(lpPRB);
ASPI_PrintSenseArea(lpPRB);
}
SRB_Status = SS_COMP;
lpPRB->SRB_HaStat = HASTAT_OK;
lpPRB->SRB_TargStat = sg_reply_hdr->target_status << 1;
HeapFree(GetProcessHeap(), 0, sg_reply_hdr);
HeapFree(GetProcessHeap(), 0, sg_hd);
/* FIXME: Should this be != 0 maybe? */
if( lpPRB->SRB_TargStat == 2 ) {
SRB_Status = SS_ERR;
switch (lpPRB->CDBByte[0]) {
case 0xa4: /* REPORT_KEY (DVD) MMC-2 */
case 0xa3: /* SEND KEY (DVD) MMC-2 */
SRB_Status = SS_COMP;
lpPRB->SRB_TargStat = 0;
FIXME("Program wants to do DVD Region switching, but fails (non compliant DVD drive). Ignoring....\n");
break;
}
}
ASPI_DebugPrintResult(lpPRB);
/* now do posting */
ret = WNASPI32_DoPosting( lpPRB, SRB_Status );
switch (lpPRB->CDBByte[0]) {
case CMD_INQUIRY:
if (SRB_Status == SS_COMP)
return SS_COMP; /* some junk expects ss_comp here. */
/*FALLTHROUGH*/
default:
break;
}
/* In real WNASPI32 stuff really is always pending because ASPI does things
in the background, but we are not doing that (yet) */
return ret;
error_exit:
SRB_Status = SS_ERR;
if (error_code == EBUSY) {
WNASPI32_DoPosting( lpPRB, SS_ASPI_IS_BUSY );
TRACE("Device busy\n");
} else
FIXME("Failed\n");
/* I'm not sure exactly error codes work here
* We probably should set lpPRB->SRB_TargStat, SRB_HaStat ?
*/
WARN("error_exit\n");
HeapFree(GetProcessHeap(), 0, sg_reply_hdr);
HeapFree(GetProcessHeap(), 0, sg_hd);
WNASPI32_DoPosting( lpPRB, SRB_Status );
return SS_PENDING;
}
#endif /* defined(linux) */
/*******************************************************************
* GetASPI32SupportInfo [WNASPI32.1]
*
* Checks if the ASPI subsystem is initialized correctly.
*
* RETURNS
* HIWORD: 0.
* HIBYTE of LOWORD: status (SS_COMP or SS_FAILED_INIT)
* LOBYTE of LOWORD: # of host adapters.
*/
DWORD __cdecl GetASPI32SupportInfo(void)
{
DWORD controllers = ASPI_GetNumControllers();
if (!controllers)
return SS_NO_ADAPTERS << 8;
return (SS_COMP << 8) | controllers ;
}
/***********************************************************************
* SendASPI32Command (WNASPI32.2)
*/
DWORD __cdecl SendASPI32Command(LPSRB lpSRB)
{
#ifdef linux
switch (lpSRB->common.SRB_Cmd) {
case SC_HA_INQUIRY:
lpSRB->inquiry.SRB_Status = SS_COMP; /* completed successfully */
lpSRB->inquiry.HA_Count = ASPI_GetNumControllers();
lpSRB->inquiry.HA_SCSI_ID = 7; /* not always ID 7 */
strcpy(lpSRB->inquiry.HA_ManagerId, "ASPI for WIN32"); /* max 15 chars, don't change */
strcpy(lpSRB->inquiry.HA_Identifier, "Wine host"); /* FIXME: return host adapter name */
memset(lpSRB->inquiry.HA_Unique, 0, 16); /* default HA_Unique content */
lpSRB->inquiry.HA_Unique[6] = 0x02; /* Maximum Transfer Length (128K, Byte> 4-7) */
lpSRB->inquiry.HA_Unique[3] = 0x08; /* Maximum number of SCSI targets */
FIXME("ASPI: Partially implemented SC_HA_INQUIRY for adapter %d.\n", lpSRB->inquiry.SRB_HaId);
return SS_COMP;
case SC_GET_DEV_TYPE: {
/* FIXME: We should return SS_NO_DEVICE if the device is not configured */
/* FIXME: We should return SS_INVALID_HA if HostAdapter!=0 */
SRB tmpsrb;
char inqbuf[200];
DWORD ret;
memset(&tmpsrb,0,sizeof(tmpsrb));
/* Copy header */
memcpy(&tmpsrb.common,&(lpSRB->common),sizeof(tmpsrb.common));
tmpsrb.cmd.SRB_Flags |= 8; /* target to host */
tmpsrb.cmd.SRB_Cmd = SC_EXEC_SCSI_CMD;
tmpsrb.cmd.SRB_Target = lpSRB->devtype.SRB_Target;
tmpsrb.cmd.SRB_Lun = lpSRB->devtype.SRB_Lun;
tmpsrb.cmd.SRB_BufLen = sizeof(inqbuf);
tmpsrb.cmd.SRB_BufPointer = inqbuf;
tmpsrb.cmd.CDBByte[0] = 0x12; /* INQUIRY */
/* FIXME: handle lun */
tmpsrb.cmd.CDBByte[4] = sizeof(inqbuf);
tmpsrb.cmd.SRB_CDBLen = 6;
ret = ASPI_ExecScsiCmd(&tmpsrb.cmd);
lpSRB->devtype.SRB_Status = tmpsrb.cmd.SRB_Status;
lpSRB->devtype.SRB_DeviceType = inqbuf[0]&0x1f;
TRACE("returning devicetype %d for target %d\n",inqbuf[0]&0x1f,tmpsrb.cmd.SRB_Target);
if (ret!=SS_PENDING) /* Any error is passed down directly */
return ret;
/* FIXME: knows that the command is finished already, pass final Status */
return tmpsrb.cmd.SRB_Status;
}
case SC_EXEC_SCSI_CMD:
return ASPI_ExecScsiCmd(&lpSRB->cmd);
case SC_ABORT_SRB:
FIXME("Not implemented SC_ABORT_SRB\n");
break;
case SC_RESET_DEV:
FIXME("Not implemented SC_RESET_DEV\n");
break;
case SC_GET_DISK_INFO:
/* here we have to find out the int13 / bios association.
* We just say we do not have any.
*/
FIXME("SC_GET_DISK_INFO always return 'int13 unassociated disk'.\n");
lpSRB->diskinfo.SRB_DriveFlags = 0; /* disk is not int13 served */
return SS_COMP;
default:
FIXME("Unknown command %d\n", lpSRB->common.SRB_Cmd);
}
return SS_INVALID_SRB;
#else
return SS_INVALID_SRB;
#endif
}
/***********************************************************************
* GetASPI32DLLVersion (WNASPI32.4)
*/
DWORD __cdecl GetASPI32DLLVersion(void)
{
#ifdef linux
TRACE("Returning version 1\n");
return (DWORD)1;
#else
FIXME("Please add SCSI support for your operating system, returning 0\n");
return (DWORD)0;
#endif
}
/***********************************************************************
* GetASPI32Buffer (WNASPI32.8)
* Supposed to return a DMA capable large SCSI buffer.
* Our implementation does not use those at all, all buffer stuff is
* done in the kernel SG device layer. So we just heapalloc the buffer.
*/
BOOL __cdecl GetASPI32Buffer(PASPI32BUFF pab)
{
pab->AB_BufPointer = HeapAlloc(GetProcessHeap(),
pab->AB_ZeroFill?HEAP_ZERO_MEMORY:0,
pab->AB_BufLen
);
if (!pab->AB_BufPointer) return FALSE;
return TRUE;
}
/***********************************************************************
* FreeASPI32Buffer (WNASPI32.14)
*/
BOOL __cdecl FreeASPI32Buffer(PASPI32BUFF pab)
{
HeapFree(GetProcessHeap(),0,pab->AB_BufPointer);
return TRUE;
}
/***********************************************************************
* TranslateASPI32Address (WNASPI32.7)
*/
BOOL __cdecl TranslateASPI32Address(LPDWORD pdwPath, LPDWORD pdwDEVNODE)
{
FIXME("(%p, %p), stub !\n", pdwPath, pdwDEVNODE);
return TRUE;
}
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