sym_fw1.h

linux-2.6.15.6

	SCR_JUMP,
		PADDR_A (dispatch),
}/*-------------------------< INIT >-----------------------------*/,{
	/*
	 *  Wait for the SCSI RESET signal to be 
	 *  inactive before restarting operations, 
	 *  since the chip may hang on SEL_ATN 
	 *  if SCSI RESET is active.
	 */
	SCR_FROM_REG (sstat0),
		0,
	SCR_JUMPR ^ IFTRUE (MASK (IRST, IRST)),
		-16,
	SCR_JUMP,
		PADDR_A (start),
}/*-------------------------< CLRACK >---------------------------*/,{
	/*
	 *  Terminate possible pending message phase.
	 */
	SCR_CLR (SCR_ACK),
		0,
	SCR_JUMP,
		PADDR_A (dispatch),
}/*-------------------------< DATAI_DONE >-----------------------*/,{
	/*
	 *  Save current pointer to LASTP.
	 */
	SCR_COPY (4),
		RADDR_1 (temp),
		HADDR_1 (ccb_head.lastp),
	/*
	 *  If the SWIDE is not full, jump to dispatcher.
	 *  We anticipate a STATUS phase.
	 */
	SCR_FROM_REG (scntl2),
		0,
	SCR_JUMP ^ IFTRUE (MASK (WSR, WSR)),
		PADDR_A (datai_done_wsr),
	SCR_JUMP ^ IFTRUE (WHEN (SCR_STATUS)),
		PADDR_A (status),
	SCR_JUMP,
		PADDR_A (dispatch),
}/*-------------------------< DATAI_DONE_WSR >-------------------*/,{
	/*
	 *  The SWIDE is full.
	 *  Clear this condition.
	 */
	SCR_REG_REG (scntl2, SCR_OR, WSR),
		0,
	/*
	 *  We are expecting an IGNORE RESIDUE message 
	 *  from the device, otherwise we are in data 
	 *  overrun condition. Check against MSG_IN phase.
	 */
	SCR_INT ^ IFFALSE (WHEN (SCR_MSG_IN)),
		SIR_SWIDE_OVERRUN,
	SCR_JUMP ^ IFFALSE (WHEN (SCR_MSG_IN)),
		PADDR_A (dispatch),
	/*
	 *  We are in MSG_IN phase,
	 *  Read the first byte of the message.
	 *  If it is not an IGNORE RESIDUE message,
	 *  signal overrun and jump to message 
	 *  processing.
	 */
	SCR_MOVE_ABS (1) ^ SCR_MSG_IN,
		HADDR_1 (msgin[0]),
	SCR_INT ^ IFFALSE (DATA (M_IGN_RESIDUE)),
		SIR_SWIDE_OVERRUN,
	SCR_JUMP ^ IFFALSE (DATA (M_IGN_RESIDUE)),
		PADDR_A (msg_in2),
	/*
	 *  We got the message we expected.
	 *  Read the 2nd byte, and jump to dispatcher.
	 */
	SCR_CLR (SCR_ACK),
		0,
	SCR_MOVE_ABS (1) ^ SCR_MSG_IN,
		HADDR_1 (msgin[1]),
	SCR_CLR (SCR_ACK),
		0,
	SCR_JUMP,
		PADDR_A (dispatch),
}/*-------------------------< DATAO_DONE >-----------------------*/,{
	/*
	 *  Save current pointer to LASTP.
	 */
	SCR_COPY (4),
		RADDR_1 (temp),
		HADDR_1 (ccb_head.lastp),
	/*
	 *  If the SODL is not full jump to dispatcher.
	 *  We anticipate a STATUS phase.
	 */
	SCR_FROM_REG (scntl2),
		0,
	SCR_JUMP ^ IFTRUE (MASK (WSS, WSS)),
		PADDR_A (datao_done_wss),
	SCR_JUMP ^ IFTRUE (WHEN (SCR_STATUS)),
		PADDR_A (status),
	SCR_JUMP,
		PADDR_A (dispatch),
}/*-------------------------< DATAO_DONE_WSS >-------------------*/,{
	/*
	 *  The SODL is full, clear this condition.
	 */
	SCR_REG_REG (scntl2, SCR_OR, WSS),
		0,
	/*
	 *  And signal a DATA UNDERRUN condition 
	 *  to the C code.
	 */
	SCR_INT,
		SIR_SODL_UNDERRUN,
	SCR_JUMP,
		PADDR_A (dispatch),
}/*-------------------------< DATAI_PHASE >----------------------*/,{
	/*
	 *  Jump to current pointer.
	 */
	SCR_COPY (4),
		HADDR_1 (ccb_head.lastp),
		RADDR_1 (temp),
	SCR_RETURN,
		0,
}/*-------------------------< DATAO_PHASE >----------------------*/,{
	/*
	 *  Jump to current pointer.
	 */
	SCR_COPY (4),
		HADDR_1 (ccb_head.lastp),
		RADDR_1 (temp),
	SCR_RETURN,
		0,
}/*-------------------------< MSG_IN >---------------------------*/,{
	/*
	 *  Get the first byte of the message.
	 *
	 *  The script processor doesn't negate the
	 *  ACK signal after this transfer.
	 */
	SCR_MOVE_ABS (1) ^ SCR_MSG_IN,
		HADDR_1 (msgin[0]),
}/*-------------------------< MSG_IN2 >--------------------------*/,{
	/*
	 *  Check first against 1 byte messages 
	 *  that we handle from SCRIPTS.
	 */
	SCR_JUMP ^ IFTRUE (DATA (M_COMPLETE)),
		PADDR_A (complete),
	SCR_JUMP ^ IFTRUE (DATA (M_DISCONNECT)),
		PADDR_A (disconnect),
	SCR_JUMP ^ IFTRUE (DATA (M_SAVE_DP)),
		PADDR_A (save_dp),
	SCR_JUMP ^ IFTRUE (DATA (M_RESTORE_DP)),
		PADDR_A (restore_dp),
	/*
	 *  We handle all other messages from the 
	 *  C code, so no need to waste on-chip RAM 
	 *  for those ones.
	 */
	SCR_JUMP,
		PADDR_B (msg_in_etc),
}/*-------------------------< STATUS >---------------------------*/,{
	/*
	 *  get the status
	 */
	SCR_MOVE_ABS (1) ^ SCR_STATUS,
		HADDR_1 (scratch),
#ifdef SYM_CONF_IARB_SUPPORT
	/*
	 *  If STATUS is not GOOD, clear IMMEDIATE ARBITRATION, 
	 *  since we may have to tamper the start queue from 
	 *  the C code.
	 */
	SCR_JUMPR ^ IFTRUE (DATA (S_GOOD)),
		8,
	SCR_REG_REG (scntl1, SCR_AND, ~IARB),
		0,
#endif
	/*
	 *  save status to scsi_status.
	 *  mark as complete.
	 */
	SCR_TO_REG (SS_REG),
		0,
	SCR_LOAD_REG (HS_REG, HS_COMPLETE),
		0,
	/*
	 *  Anticipate the MESSAGE PHASE for 
	 *  the TASK COMPLETE message.
	 */
	SCR_JUMP ^ IFTRUE (WHEN (SCR_MSG_IN)),
		PADDR_A (msg_in),
	SCR_JUMP,
		PADDR_A (dispatch),
}/*-------------------------< COMPLETE >-------------------------*/,{
	/*
	 *  Complete message.
	 *
	 *  When we terminate the cycle by clearing ACK,
	 *  the target may disconnect immediately.
	 *
	 *  We don't want to be told of an "unexpected disconnect",
	 *  so we disable this feature.
	 */
	SCR_REG_REG (scntl2, SCR_AND, 0x7f),
		0,
	/*
	 *  Terminate cycle ...
	 */
	SCR_CLR (SCR_ACK|SCR_ATN),
		0,
	/*
	 *  ... and wait for the disconnect.
	 */
	SCR_WAIT_DISC,
		0,
}/*-------------------------< COMPLETE2 >------------------------*/,{
	/*
	 *  Save host status.
	 */
	SCR_COPY (4),
		RADDR_1 (scr0),
		HADDR_1 (ccb_head.status),
	/*
	 *  Move back the CCB header using self-modifying 
	 *  SCRIPTS.
	 */
	SCR_COPY (4),
		RADDR_1 (dsa),
		PADDR_A (_sms_a40),
	SCR_COPY (sizeof(struct sym_ccbh)),
		HADDR_1 (ccb_head),
}/*-------------------------< _SMS_A40 >-------------------------*/,{
		0,
	/*
	 *  Some bridges may reorder DMA writes to memory.
	 *  We donnot want the CPU to deal with completions  
	 *  without all the posted write having been flushed 
	 *  to memory. This DUMMY READ should flush posted 
	 *  buffers prior to the CPU having to deal with 
	 *  completions.
	 */
	SCR_COPY (4),			/* DUMMY READ */
		HADDR_1 (ccb_head.status),
		RADDR_1 (scr0),
	/*
	 *  If command resulted in not GOOD status,
	 *  call the C code if needed.
	 */
	SCR_FROM_REG (SS_REG),
		0,
	SCR_CALL ^ IFFALSE (DATA (S_GOOD)),
		PADDR_B (bad_status),
	/*
	 *  If we performed an auto-sense, call 
	 *  the C code to synchronyze task aborts 
	 *  with UNIT ATTENTION conditions.
	 */
	SCR_FROM_REG (HF_REG),
		0,
	SCR_JUMP ^ IFFALSE (MASK (0 ,(HF_SENSE|HF_EXT_ERR))),
		PADDR_A (complete_error),
}/*-------------------------< DONE >-----------------------------*/,{
	/*
	 *  Copy the DSA to the DONE QUEUE and 
	 *  signal completion to the host.
	 *  If we are interrupted between DONE 
	 *  and DONE_END, we must reset, otherwise 
	 *  the completed CCB may be lost.
	 */
	SCR_COPY (4),
		PADDR_B (done_pos),
		PADDR_A (_sms_a50),
	SCR_COPY (4),
		RADDR_1 (dsa),
}/*-------------------------< _SMS_A50 >-------------------------*/,{
		0,
	SCR_COPY (4),
		PADDR_B (done_pos),
		PADDR_A (_sms_a60),
	/*
	 *  The instruction below reads the DONE QUEUE next 
	 *  free position from memory.
	 *  In addition it ensures that all PCI posted writes  
	 *  are flushed and so the DSA value of the done 
	 *  CCB is visible by the CPU before INTFLY is raised.
	 */
	SCR_COPY (8),
}/*-------------------------< _SMS_A60 >-------------------------*/,{
		0,
		PADDR_B (prev_done),
}/*-------------------------< DONE_END >-------------------------*/,{
	SCR_INT_FLY,
		0,
	SCR_JUMP,
		PADDR_A (start),
}/*-------------------------< COMPLETE_ERROR >-------------------*/,{
	SCR_COPY (4),
		PADDR_B (startpos),
		RADDR_1 (scratcha),
	SCR_INT,
		SIR_COMPLETE_ERROR,
}/*-------------------------< SAVE_DP >--------------------------*/,{
	/*
	 *  Clear ACK immediately.
	 *  No need to delay it.
	 */
	SCR_CLR (SCR_ACK),
		0,
	/*
	 *  Keep track we received a SAVE DP, so 
	 *  we will switch to the other PM context 
	 *  on the next PM since the DP may point 
	 *  to the current PM context.
	 */
	SCR_REG_REG (HF_REG, SCR_OR, HF_DP_SAVED),
		0,
	/*
	 *  SAVE_DP message:
	 *  Copy LASTP to SAVEP.
	 */
	SCR_COPY (4),
		HADDR_1 (ccb_head.lastp),
		HADDR_1 (ccb_head.savep),
	/*
	 *  Anticipate the MESSAGE PHASE for 
	 *  the DISCONNECT message.
	 */
	SCR_JUMP ^ IFTRUE (WHEN (SCR_MSG_IN)),
		PADDR_A (msg_in),
	SCR_JUMP,
		PADDR_A (dispatch),
}/*-------------------------< RESTORE_DP >-----------------------*/,{
	/*
	 *  Clear ACK immediately.
	 *  No need to delay it.
	 */
	SCR_CLR (SCR_ACK),
		0,
	/*
	 *  Copy SAVEP to LASTP.
	 */
	SCR_COPY (4),
		HADDR_1 (ccb_head.savep),
		HADDR_1 (ccb_head.lastp),
	SCR_JUMP,
		PADDR_A (dispatch),
}/*-------------------------< DISCONNECT >-----------------------*/,{
	/*
	 *  DISCONNECTing  ...
	 *
	 *  disable the "unexpected disconnect" feature,
	 *  and remove the ACK signal.
	 */
	SCR_REG_REG (scntl2, SCR_AND, 0x7f),
		0,
	SCR_CLR (SCR_ACK|SCR_ATN),
		0,
	/*
	 *  Wait for the disconnect.
	 */
	SCR_WAIT_DISC,
		0,
	/*
	 *  Status is: DISCONNECTED.
	 */
	SCR_LOAD_REG (HS_REG, HS_DISCONNECT),
		0,
	/*
	 *  Save host status.
	 */
	SCR_COPY (4),
		RADDR_1 (scr0),
		HADDR_1 (ccb_head.status),
}/*-------------------------< DISCONNECT2 >----------------------*/,{
	/*
	 *  Move back the CCB header using self-modifying 
	 *  SCRIPTS.
	 */
	SCR_COPY (4),
		RADDR_1 (dsa),
		PADDR_A (_sms_a65),
	SCR_COPY (sizeof(struct sym_ccbh)),
		HADDR_1 (ccb_head),
}/*-------------------------< _SMS_A65 >-------------------------*/,{
		0,
	SCR_JUMP,
		PADDR_A (start),
}/*-------------------------< IDLE >-----------------------------*/,{
	/*
	 *  Nothing to do?
	 *  Switch the LED off and wait for reselect.
	 *  Will be patched with a NO_OP if LED
	 *  not needed or not desired.
	 */
	SCR_REG_REG (gpreg, SCR_OR, 0x01),
		0,
#ifdef SYM_CONF_IARB_SUPPORT
	SCR_JUMPR,
		8,
#endif
}/*-------------------------< UNGETJOB >-------------------------*/,{
#ifdef SYM_CONF_IARB_SUPPORT
	/*
	 *  Set IMMEDIATE ARBITRATION, for the next time.
	 *  This will give us better chance to win arbitration 
	 *  for the job we just wanted to do.
	 */
	SCR_REG_REG (scntl1, SCR_OR, IARB),
		0,
#endif
	/*
	 *  We are not able to restart the SCRIPTS if we are 
	 *  interrupted and these instruction haven't been 
	 *  all executed. BTW, this is very unlikely to 
	 *  happen, but we check that from the C code.
	 */
	SCR_LOAD_REG (dsa, 0xff),
		0,
	SCR_COPY (4),
		RADDR_1 (scratcha),
		PADDR_B (startpos),
}/*-------------------------< RESELECT >-------------------------*/,{
#ifdef SYM_CONF_TARGET_ROLE_SUPPORT
	/*
	 *  Make sure we are in initiator mode.
	 */
	SCR_CLR (SCR_TRG),
		0,
#endif
	/*
	 *  Sleep waiting for a reselection.
	 */
	SCR_WAIT_RESEL,
		PADDR_A(start),
}/*-------------------------< RESELECTED >-----------------------*/,{
	/*
	 *  Switch the LED on.
	 *  Will be patched with a NO_OP if LED
	 *  not needed or not desired.
	 */
	SCR_REG_REG (gpreg, SCR_AND, 0xfe),
		0,
	/*
	 *  load the target id into the sdid
	 */
	SCR_REG_SFBR (ssid, SCR_AND, 0x8F),
		0,
	SCR_TO_REG (sdid),
		0,
	/*
	 *  Load the target control block address
	 */
	SCR_COPY (4),
		PADDR_B (targtbl),
		RADDR_1 (dsa),
	SCR_SFBR_REG (dsa, SCR_SHL, 0),
		0,