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/*
* Copyright 1993-97 by Apple Computer, Inc.
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both the copyright notice and this permission notice appear in
* supporting documentation.
*
* APPLE COMPUTER DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL APPLE COMPUTER BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "SCSIStuff.h"
int DoRead(UInt8 targetID, UInt32 block, UInt16 count, char* addr);
int DoWrite(UInt8 targetID, UInt32 block, UInt16 count, char* addr);
int
DoRead(
UInt8 targetID,
UInt32 block,
UInt16 count,
char * addr
)
{
OSErr status;
Str255 errorText;
char* msg;
static SCSI_10_Byte_Command gReadCommand = {
kScsiCmdRead10, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
SCSI_Sense_Data senseData;
DeviceIdent scsiDevice;
int rtn_value;
scsiDevice.diReserved = 0;
scsiDevice.bus = kOriginalSCSIBusAdaptor;
scsiDevice.targetID = targetID;
scsiDevice.LUN = 0;
gReadCommand.lbn4 = (block >> 24) & 0xFF;
gReadCommand.lbn3 = (block >> 16) & 0xFF;
gReadCommand.lbn2 = (block >> 8) & 0xFF;
gReadCommand.lbn1 = block & 0xFF;
gReadCommand.len2 = (count >> 8) & 0xFF;
gReadCommand.len1 = count & 0xFF;
status = DoSCSICommand(
scsiDevice,
"\pRead",
(SCSI_CommandPtr) &gReadCommand,
(Ptr) addr,
count * 512,
scsiDirectionIn,
NULL,
&senseData,
errorText
);
if (status == noErr) {
rtn_value = 1;
} else {
rtn_value = 0;
}
return rtn_value;
}
int
DoWrite(
UInt8 targetID,
UInt32 block,
UInt16 count,
char * addr
)
{
OSErr status;
Str255 errorText;
char* msg;
static SCSI_10_Byte_Command gWriteCommand = {
kScsiCmdWrite10, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
SCSI_Sense_Data senseData;
DeviceIdent scsiDevice;
int rtn_value;
scsiDevice.diReserved = 0;
scsiDevice.bus = 0xff;
scsiDevice.targetID = targetID;
scsiDevice.LUN = 0;
gWriteCommand.lbn4 = (block >> 24) & 0xFF;
gWriteCommand.lbn3 = (block >> 16) & 0xFF;
gWriteCommand.lbn2 = (block >> 8) & 0xFF;
gWriteCommand.lbn1 = block & 0xFF;
gWriteCommand.len2 = (count >> 8) & 0xFF;
gWriteCommand.len1 = count & 0xFF;
status = DoSCSICommand(
scsiDevice,
"\pWrite",
(SCSI_CommandPtr) &gWriteCommand,
(Ptr) addr,
count * 512,
scsiDirectionOut,
NULL,
&senseData,
errorText
);
if (status == noErr) {
rtn_value = 1;
} else {
rtn_value = 0;
}
return rtn_value;
}
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