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Added DaynaPort command notes

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This commit is contained in:
Uwe Seimet 2021-08-23 12:06:04 +02:00
parent 832a8759ef
commit 6565639082
2 changed files with 96 additions and 10 deletions
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102
src/raspberrypi/devices/scsi_daynaport.cpp
View File

@ -87,8 +87,8 @@ SCSIDaynaPort::SCSIDaynaPort() : Disk("SCDP")
AddCommand(SCSIDEV::eCmdRead6, "CmdRead6", &SCSIDaynaPort::CmdRead6);
AddCommand(SCSIDEV::eCmdWrite6, "CmdWrite6", &SCSIDaynaPort::CmdWrite6);
AddCommand(SCSIDEV::eCmdRetrieveStats, "CmdRetrieveStats", &SCSIDaynaPort::CmdRetrieveStats);
AddCommand(SCSIDEV::eCmdSetIfaceMode, "CmdSetIfaceMode", &SCSIDaynaPort::CmdSetIfaceMode);
AddCommand(SCSIDEV::eCmdRetrieveStats, "CmdRetrieveStats", &SCSIDaynaPort::CmdRetrieveStatistics);
AddCommand(SCSIDEV::eCmdSetIfaceMode, "CmdSetIfaceMode", &SCSIDaynaPort::CmdSetInterfaceMode);
AddCommand(SCSIDEV::eCmdSetMcastAddr, "CmdSetMcastAddr", &SCSIDaynaPort::CmdSetMcastAddr);
AddCommand(SCSIDEV::eCmdEnableInterface, "CmdEnableInterface", &SCSIDaynaPort::CmdEnableInterface);
AddCommand(SCSIDEV::eCmdGetEventStatusNotification, "CmdGetEventStatusNotification", &SCSIDaynaPort::CmdGetEventStatusNotification);
@ -154,9 +154,9 @@ int SCSIDaynaPort::Inquiry(const DWORD *cdb, BYTE *buf)
ASSERT(cdb);
ASSERT(buf);
DWORD allocation_length = cdb[4] + (((DWORD)cdb[3]) << 8);
int allocation_length = cdb[4] + (((DWORD)cdb[3]) << 8);
LOGTRACE("%s Inquiry, allocation length: %d",__PRETTY_FUNCTION__, (int)allocation_length);
LOGTRACE("%s Inquiry, allocation length: %d",__PRETTY_FUNCTION__, allocation_length);
if (allocation_length > 4){
if (allocation_length > 44) {
@ -169,7 +169,7 @@ int SCSIDaynaPort::Inquiry(const DWORD *cdb, BYTE *buf)
// buf[2] ... SCSI-2 compliant command system
// buf[3] ... SCSI-2 compliant Inquiry response
// buf[4] ... Inquiry additional data
//http://www.bitsavers.org/pdf/apple/scsi/dayna/daynaPORT/pocket_scsiLINK/pocketscsilink_inq.png
// http://www.bitsavers.org/pdf/apple/scsi/dayna/daynaPORT/pocket_scsiLINK/pocketscsilink_inq.png
memset(buf, 0, allocation_length);
buf[0] = 0x03;
buf[2] = 0x01;
@ -179,7 +179,7 @@ int SCSIDaynaPort::Inquiry(const DWORD *cdb, BYTE *buf)
memcpy(&buf[8], GetPaddedName().c_str(), 28);
}
LOGTRACE("response size is %d", (int)allocation_length);
LOGTRACE("response size is %d", allocation_length);
return allocation_length;
}
@ -188,6 +188,32 @@ int SCSIDaynaPort::Inquiry(const DWORD *cdb, BYTE *buf)
//
// READ
//
// Command: 08 00 00 LL LL XX (LLLL is data length, XX = c0 or 80)
// Function: Read a packet at a time from the device (standard SCSI Read)
// Type: Input; the following data is returned:
// LL LL NN NN NN NN XX XX XX ... CC CC CC CC
// where:
// LLLL is normally the length of the packet (a 2-byte
// big-endian hex value), including 4 trailing bytes
// of CRC, but excluding itself and the flag field.
// See below for special values
// NNNNNNNN is a 4-byte flag field with the following meanings:
// FFFFFFFF a packet has been dropped (?); in this case
// the length field appears to be always 4000
// 00000010 there are more packets currently available
// in SCSI/Link memory
// 00000000 this is the last packet
// XX XX ... is the actual packet
// CCCCCCCC is the CRC
//
// Notes:
// - When all packets have been retrieved successfully, a length field
// of 0000 is returned; however, if a packet has been dropped, the
// SCSI/Link will instead return a non-zero length field with a flag
// of FFFFFFFF when there are no more packets available. This behaviour
// seems to continue until a disable/enable sequence has been issued.
// - The SCSI/Link apparently has about 6KB buffer space for packets.
//
//---------------------------------------------------------------------------
int SCSIDaynaPort::Read(const DWORD *cdb, BYTE *buf, DWORD block)
{
@ -350,6 +376,19 @@ int SCSIDaynaPort::WriteCheck(DWORD block)
//
// Write
//
// Command: 0a 00 00 LL LL XX (LLLL is data length, XX = 80 or 00)
// Function: Write a packet at a time to the device (standard SCSI Write)
// Type: Output; the format of the data to be sent depends on the value
// of XX, as follows:
// - if XX = 00, LLLL is the packet length, and the data to be sent
// must be an image of the data packet
// - if XX = 80, LLLL is the packet length + 8, and the data to be
// sent is:
// PP PP 00 00 XX XX XX ... 00 00 00 00
// where:
// PPPP is the actual (2-byte big-endian) packet length
// XX XX ... is the actual packet
//
//---------------------------------------------------------------------------
bool SCSIDaynaPort::Write(const DWORD *cdb, const BYTE *buf, DWORD block)
{
@ -391,6 +430,17 @@ bool SCSIDaynaPort::Write(const DWORD *cdb, const BYTE *buf, DWORD block)
//
// RetrieveStats
//
// Command: 09 00 00 00 12 00
// Function: Retrieve MAC address and device statistics
// Type: Input; returns 18 (decimal) bytes of data as follows:
// - bytes 0-5: the current hardware ethernet (MAC) address
// - bytes 6-17: three long word (4-byte) counters (little-endian).
// Notes: The contents of the three longs are typically zero, and their
// usage is unclear; they are suspected to be:
// - long #1: frame alignment errors
// - long #2: CRC errors
// - long #3: frames lost
//
//---------------------------------------------------------------------------
int SCSIDaynaPort::RetrieveStats(const DWORD *cdb, BYTE *buffer)
{
@ -471,6 +521,13 @@ int SCSIDaynaPort::RetrieveStats(const DWORD *cdb, BYTE *buffer)
//
// Enable or Disable the interface
//
// Command: 0e 00 00 00 00 XX (XX = 80 or 00)
// Function: Enable (80) / disable (00) Ethernet interface
// Type: No data transferred
// Notes: After issuing an Enable, the initiator should avoid sending
// any subsequent commands to the device for approximately 0.5
// seconds
//
//---------------------------------------------------------------------------
bool SCSIDaynaPort::EnableInterface(const DWORD *cdb)
{
@ -563,7 +620,7 @@ void SCSIDaynaPort::CmdWrite6(SASIDEV *controller)
controller->DataOut();
}
void SCSIDaynaPort::CmdRetrieveStats(SASIDEV *controller)
void SCSIDaynaPort::CmdRetrieveStatistics(SASIDEV *controller)
{
ctrl->length = RetrieveStats(ctrl->cmd, ctrl->buffer);
if (ctrl->length <= 0) {
@ -580,7 +637,33 @@ void SCSIDaynaPort::CmdRetrieveStats(SASIDEV *controller)
controller->DataIn();
}
void SCSIDaynaPort::CmdSetIfaceMode(SASIDEV *controller)
//---------------------------------------------------------------------------
//
// Set interface mode/Set MAC address
//
// Set Interface Mode (0c)
// -----------------------
// Command: 0c 00 00 00 FF 80 (FF = 08 or 04)
// Function: Allow interface to receive broadcast messages (FF = 04); the
// function of (FF = 08) is currently unknown.
// Type: No data transferred
// Notes: This command is accepted by firmware 1.4a & 2.0f, but has no
// effect on 2.0f, which is always capable of receiving broadcast
// messages. In 1.4a, once broadcast mode is set, it remains set
// until the interface is disabled.
//
// Set MAC Address (0c)
// --------------------
// Command: 0c 00 00 00 FF 40 (FF = 08 or 04)
// Function: Set MAC address
// Type: Output; overrides built-in MAC address with user-specified
// 6-byte value
// Notes: This command is intended primarily for debugging/test purposes.
// Disabling the interface resets the MAC address to the built-in
// value.
//
//---------------------------------------------------------------------------
void SCSIDaynaPort::CmdSetInterfaceMode(SASIDEV *controller)
{
// Check whether this command is telling us to "Set Interface Mode" or "Set MAC Address"
@ -591,13 +674,16 @@ void SCSIDaynaPort::CmdSetIfaceMode(SASIDEV *controller)
controller->Status();
break;
break;
case SCSIDaynaPort::CMD_SCSILINK_SETMAC:
ctrl->length = 6;
// Write phase
controller->DataOut();
break;
default:
LOGWARN("%s Unknown SetInterface command received: %02X", __PRETTY_FUNCTION__, (unsigned int)ctrl->cmd[5]);
break;
}
}

4
src/raspberrypi/devices/scsi_daynaport.h
View File

@ -88,8 +88,8 @@ public:
void CmdRead6(SASIDEV *);
void CmdWrite6(SASIDEV *);
void CmdRetrieveStats(SASIDEV *);
void CmdSetIfaceMode(SASIDEV *);
void CmdRetrieveStatistics(SASIDEV *);
void CmdSetInterfaceMode(SASIDEV *);
void CmdSetMcastAddr(SASIDEV *);
void CmdEnableInterface(SASIDEV *);
void CmdGetEventStatusNotification(SASIDEV *);