| /* DO NOT EDIT - Generated automatically by script_asm.pl */ | |
| static u32 SCRIPT[] = { | |
| /* | |
| ; 53c710 driver. Modified from Drew Eckhardts driver | |
| ; for 53c810 by Richard Hirst [richard@sleepie.demon.co.uk] | |
| ; | |
| ; I have left the script for the 53c8xx family in here, as it is likely | |
| ; to be useful to see what I changed when bug hunting. | |
| ; NCR 53c810 driver, main script | |
| ; Sponsored by | |
| ; iX Multiuser Multitasking Magazine | |
| ; hm@ix.de | |
| ; | |
| ; Copyright 1993, 1994, 1995 Drew Eckhardt | |
| ; Visionary Computing | |
| ; (Unix and Linux consulting and custom programming) | |
| ; drew@PoohSticks.ORG | |
| ; +1 (303) 786-7975 | |
| ; | |
| ; TolerANT and SCSI SCRIPTS are registered trademarks of NCR Corporation. | |
| ; | |
| ; PRE-ALPHA | |
| ; | |
| ; For more information, please consult | |
| ; | |
| ; NCR 53C810 | |
| ; PCI-SCSI I/O Processor | |
| ; Data Manual | |
| ; | |
| ; NCR 53C710 | |
| ; SCSI I/O Processor | |
| ; Programmers Guide | |
| ; | |
| ; NCR Microelectronics | |
| ; 1635 Aeroplaza Drive | |
| ; Colorado Springs, CO 80916 | |
| ; 1+ (719) 578-3400 | |
| ; | |
| ; Toll free literature number | |
| ; +1 (800) 334-5454 | |
| ; | |
| ; IMPORTANT : This code is self modifying due to the limitations of | |
| ; the NCR53c7,8xx series chips. Persons debugging this code with | |
| ; the remote debugger should take this into account, and NOT set | |
| ; breakpoints in modified instructions. | |
| ; | |
| ; Design: | |
| ; The NCR53c7,8xx family of SCSI chips are busmasters with an onboard | |
| ; microcontroller using a simple instruction set. | |
| ; | |
| ; So, to minimize the effects of interrupt latency, and to maximize | |
| ; throughput, this driver offloads the practical maximum amount | |
| ; of processing to the SCSI chip while still maintaining a common | |
| ; structure. | |
| ; | |
| ; Where tradeoffs were needed between efficiency on the older | |
| ; chips and the newer NCR53c800 series, the NCR53c800 series | |
| ; was chosen. | |
| ; | |
| ; While the NCR53c700 and NCR53c700-66 lacked the facilities to fully | |
| ; automate SCSI transfers without host processor intervention, this | |
| ; isn't the case with the NCR53c710 and newer chips which allow | |
| ; | |
| ; - reads and writes to the internal registers from within the SCSI | |
| ; scripts, allowing the SCSI SCRIPTS(tm) code to save processor | |
| ; state so that multiple threads of execution are possible, and also | |
| ; provide an ALU for loop control, etc. | |
| ; | |
| ; - table indirect addressing for some instructions. This allows | |
| ; pointers to be located relative to the DSA ((Data Structure | |
| ; Address) register. | |
| ; | |
| ; These features make it possible to implement a mailbox style interface, | |
| ; where the same piece of code is run to handle I/O for multiple threads | |
| ; at once minimizing our need to relocate code. Since the NCR53c700/ | |
| ; NCR53c800 series have a unique combination of features, making a | |
| ; a standard ingoing/outgoing mailbox system, costly, I've modified it. | |
| ; | |
| ; - Mailboxes are a mixture of code and data. This lets us greatly | |
| ; simplify the NCR53c810 code and do things that would otherwise | |
| ; not be possible. | |
| ; | |
| ; The saved data pointer is now implemented as follows : | |
| ; | |
| ; Control flow has been architected such that if control reaches | |
| ; munge_save_data_pointer, on a restore pointers message or | |
| ; reconnection, a jump to the address formerly in the TEMP register | |
| ; will allow the SCSI command to resume execution. | |
| ; | |
| ; | |
| ; Note : the DSA structures must be aligned on 32 bit boundaries, | |
| ; since the source and destination of MOVE MEMORY instructions | |
| ; must share the same alignment and this is the alignment of the | |
| ; NCR registers. | |
| ; | |
| ; For some systems (MVME166, for example) dmode is always the same, so don't | |
| ; waste time writing it | |
| ABSOLUTE dsa_temp_lun = 0 ; Patch to lun for current dsa | |
| ABSOLUTE dsa_temp_next = 0 ; Patch to dsa next for current dsa | |
| ABSOLUTE dsa_temp_addr_next = 0 ; Patch to address of dsa next address | |
| ; for current dsa | |
| ABSOLUTE dsa_temp_sync = 0 ; Patch to address of per-target | |
| ; sync routine | |
| ABSOLUTE dsa_sscf_710 = 0 ; Patch to address of per-target | |
| ; sscf value (53c710) | |
| ABSOLUTE dsa_temp_target = 0 ; Patch to id for current dsa | |
| ABSOLUTE dsa_temp_addr_saved_pointer = 0; Patch to address of per-command | |
| ; saved data pointer | |
| ABSOLUTE dsa_temp_addr_residual = 0 ; Patch to address of per-command | |
| ; current residual code | |
| ABSOLUTE dsa_temp_addr_saved_residual = 0; Patch to address of per-command | |
| ; saved residual code | |
| ABSOLUTE dsa_temp_addr_new_value = 0 ; Address of value for JUMP operand | |
| ABSOLUTE dsa_temp_addr_array_value = 0 ; Address to copy to | |
| ABSOLUTE dsa_temp_addr_dsa_value = 0 ; Address of this DSA value | |
| ; | |
| ; Once a device has initiated reselection, we need to compare it | |
| ; against the singly linked list of commands which have disconnected | |
| ; and are pending reselection. These commands are maintained in | |
| ; an unordered singly linked list of DSA structures, through the | |
| ; DSA pointers at their 'centers' headed by the reconnect_dsa_head | |
| ; pointer. | |
| ; | |
| ; To avoid complications in removing commands from the list, | |
| ; I minimize the amount of expensive (at eight operations per | |
| ; addition @ 500-600ns each) pointer operations which must | |
| ; be done in the NCR driver by precomputing them on the | |
| ; host processor during dsa structure generation. | |
| ; | |
| ; The fixed-up per DSA code knows how to recognize the nexus | |
| ; associated with the corresponding SCSI command, and modifies | |
| ; the source and destination pointers for the MOVE MEMORY | |
| ; instruction which is executed when reselected_ok is called | |
| ; to remove the command from the list. Similarly, DSA is | |
| ; loaded with the address of the next DSA structure and | |
| ; reselected_check_next is called if a failure occurs. | |
| ; | |
| ; Perhaps more concisely, the net effect of the mess is | |
| ; | |
| ; for (dsa = reconnect_dsa_head, dest = &reconnect_dsa_head, | |
| ; src = NULL; dsa; dest = &dsa->next, dsa = dsa->next) { | |
| ; src = &dsa->next; | |
| ; if (target_id == dsa->id && target_lun == dsa->lun) { | |
| ; *dest = *src; | |
| ; break; | |
| ; } | |
| ; } | |
| ; | |
| ; if (!dsa) | |
| ; error (int_err_unexpected_reselect); | |
| ; else | |
| ; longjmp (dsa->jump_resume, 0); | |
| ; | |
| ; | |
| ; Define DSA structure used for mailboxes | |
| ENTRY dsa_code_template | |
| dsa_code_template: | |
| ENTRY dsa_code_begin | |
| dsa_code_begin: | |
| ; RGH: Don't care about TEMP and DSA here | |
| MOVE MEMORY 4, dsa_temp_addr_dsa_value, addr_scratch | |
| at 0x00000000 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, saved_dsa | |
| at 0x00000003 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| ; We are about to go and select the device, so must set SSCF bits | |
| MOVE MEMORY 4, dsa_sscf_710, addr_scratch | |
| at 0x00000006 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| MOVE SCRATCH3 TO SFBR | |
| at 0x00000009 : */ 0x72370000,0x00000000, | |
| /* | |
| MOVE SFBR TO SBCL | |
| at 0x0000000b : */ 0x6a0b0000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x0000000d : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| CALL select | |
| at 0x00000010 : */ 0x88080000,0x000001f8, | |
| /* | |
| ; Handle the phase mismatch which may have resulted from the | |
| ; MOVE FROM dsa_msgout if we returned here. The CLEAR ATN | |
| ; may or may not be necessary, and we should update script_asm.pl | |
| ; to handle multiple pieces. | |
| CLEAR ATN | |
| at 0x00000012 : */ 0x60000008,0x00000000, | |
| /* | |
| CLEAR ACK | |
| at 0x00000014 : */ 0x60000040,0x00000000, | |
| /* | |
| ; Replace second operand with address of JUMP instruction dest operand | |
| ; in schedule table for this DSA. Becomes dsa_jump_dest in 53c7,8xx.c. | |
| ENTRY dsa_code_fix_jump | |
| dsa_code_fix_jump: | |
| MOVE MEMORY 4, NOP_insn, 0 | |
| at 0x00000016 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| JUMP select_done | |
| at 0x00000019 : */ 0x80080000,0x00000230, | |
| /* | |
| ; wrong_dsa loads the DSA register with the value of the dsa_next | |
| ; field. | |
| ; | |
| wrong_dsa: | |
| ; NOTE DSA is corrupt when we arrive here! | |
| ; Patch the MOVE MEMORY INSTRUCTION such that | |
| ; the destination address is the address of the OLD | |
| ; next pointer. | |
| ; | |
| MOVE MEMORY 4, dsa_temp_addr_next, reselected_ok_patch + 8 | |
| at 0x0000001b : */ 0xc0000004,0x00000000,0x000007ec, | |
| /* | |
| ; | |
| ; Move the _contents_ of the next pointer into the DSA register as | |
| ; the next I_T_L or I_T_L_Q tupple to check against the established | |
| ; nexus. | |
| ; | |
| MOVE MEMORY 4, dsa_temp_next, addr_scratch | |
| at 0x0000001e : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, saved_dsa | |
| at 0x00000021 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x00000024 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| JUMP reselected_check_next | |
| at 0x00000027 : */ 0x80080000,0x000006f0, | |
| /* | |
| ABSOLUTE dsa_save_data_pointer = 0 | |
| ENTRY dsa_code_save_data_pointer | |
| dsa_code_save_data_pointer: | |
| ; When we get here, TEMP has been saved in jump_temp+4, DSA is corrupt | |
| ; We MUST return with DSA correct | |
| MOVE MEMORY 4, jump_temp+4, dsa_temp_addr_saved_pointer | |
| at 0x00000029 : */ 0xc0000004,0x000009c8,0x00000000, | |
| /* | |
| ; HARD CODED : 24 bytes needs to agree with 53c7,8xx.h | |
| MOVE MEMORY 24, dsa_temp_addr_residual, dsa_temp_addr_saved_residual | |
| at 0x0000002c : */ 0xc0000018,0x00000000,0x00000000, | |
| /* | |
| CLEAR ACK | |
| at 0x0000002f : */ 0x60000040,0x00000000, | |
| /* | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x00000031 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| JUMP jump_temp | |
| at 0x00000034 : */ 0x80080000,0x000009c4, | |
| /* | |
| ABSOLUTE dsa_restore_pointers = 0 | |
| ENTRY dsa_code_restore_pointers | |
| dsa_code_restore_pointers: | |
| ; TEMP and DSA are corrupt when we get here, but who cares! | |
| MOVE MEMORY 4, dsa_temp_addr_saved_pointer, jump_temp + 4 | |
| at 0x00000036 : */ 0xc0000004,0x00000000,0x000009c8, | |
| /* | |
| ; HARD CODED : 24 bytes needs to agree with 53c7,8xx.h | |
| MOVE MEMORY 24, dsa_temp_addr_saved_residual, dsa_temp_addr_residual | |
| at 0x00000039 : */ 0xc0000018,0x00000000,0x00000000, | |
| /* | |
| CLEAR ACK | |
| at 0x0000003c : */ 0x60000040,0x00000000, | |
| /* | |
| ; Restore DSA, note we don't care about TEMP | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x0000003e : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| JUMP jump_temp | |
| at 0x00000041 : */ 0x80080000,0x000009c4, | |
| /* | |
| ABSOLUTE dsa_check_reselect = 0 | |
| ; dsa_check_reselect determines whether or not the current target and | |
| ; lun match the current DSA | |
| ENTRY dsa_code_check_reselect | |
| dsa_code_check_reselect: | |
| MOVE LCRC TO SFBR ; LCRC has our ID and his ID bits set | |
| at 0x00000043 : */ 0x72230000,0x00000000, | |
| /* | |
| JUMP REL (wrong_dsa), IF NOT dsa_temp_target, AND MASK 0x80 | |
| at 0x00000045 : */ 0x80848000,0x00ffff50, | |
| /* | |
| ; | |
| ; Hack - move to scratch first, since SFBR is not writeable | |
| ; via the CPU and hence a MOVE MEMORY instruction. | |
| ; | |
| MOVE MEMORY 1, reselected_identify, addr_scratch | |
| at 0x00000047 : */ 0xc0000001,0x00000000,0x00000000, | |
| /* | |
| ; BIG ENDIAN ON MVME16x | |
| MOVE SCRATCH3 TO SFBR | |
| at 0x0000004a : */ 0x72370000,0x00000000, | |
| /* | |
| ; FIXME : we need to accommodate bit fielded and binary here for '7xx/'8xx chips | |
| ; Are you sure about that? richard@sleepie.demon.co.uk | |
| JUMP REL (wrong_dsa), IF NOT dsa_temp_lun, AND MASK 0xf8 | |
| at 0x0000004c : */ 0x8084f800,0x00ffff34, | |
| /* | |
| ; Patch the MOVE MEMORY INSTRUCTION such that | |
| ; the source address is the address of this dsa's | |
| ; next pointer. | |
| MOVE MEMORY 4, dsa_temp_addr_next, reselected_ok_patch + 4 | |
| at 0x0000004e : */ 0xc0000004,0x00000000,0x000007e8, | |
| /* | |
| CALL reselected_ok | |
| at 0x00000051 : */ 0x88080000,0x00000798, | |
| /* | |
| ; Restore DSA following memory moves in reselected_ok | |
| ; dsa_temp_sync doesn't really care about DSA, but it has an | |
| ; optional debug INT so a valid DSA is a good idea. | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x00000053 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| CALL dsa_temp_sync | |
| at 0x00000056 : */ 0x88080000,0x00000000, | |
| /* | |
| ; Release ACK on the IDENTIFY message _after_ we've set the synchronous | |
| ; transfer parameters! | |
| CLEAR ACK | |
| at 0x00000058 : */ 0x60000040,0x00000000, | |
| /* | |
| ; Implicitly restore pointers on reselection, so a RETURN | |
| ; will transfer control back to the right spot. | |
| CALL REL (dsa_code_restore_pointers) | |
| at 0x0000005a : */ 0x88880000,0x00ffff68, | |
| /* | |
| RETURN | |
| at 0x0000005c : */ 0x90080000,0x00000000, | |
| /* | |
| ENTRY dsa_zero | |
| dsa_zero: | |
| ENTRY dsa_code_template_end | |
| dsa_code_template_end: | |
| ; Perform sanity check for dsa_fields_start == dsa_code_template_end - | |
| ; dsa_zero, puke. | |
| ABSOLUTE dsa_fields_start = 0 ; Sanity marker | |
| ; pad 48 bytes (fix this RSN) | |
| ABSOLUTE dsa_next = 48 ; len 4 Next DSA | |
| ; del 4 Previous DSA address | |
| ABSOLUTE dsa_cmnd = 56 ; len 4 Scsi_Cmnd * for this thread. | |
| ABSOLUTE dsa_select = 60 ; len 4 Device ID, Period, Offset for | |
| ; table indirect select | |
| ABSOLUTE dsa_msgout = 64 ; len 8 table indirect move parameter for | |
| ; select message | |
| ABSOLUTE dsa_cmdout = 72 ; len 8 table indirect move parameter for | |
| ; command | |
| ABSOLUTE dsa_dataout = 80 ; len 4 code pointer for dataout | |
| ABSOLUTE dsa_datain = 84 ; len 4 code pointer for datain | |
| ABSOLUTE dsa_msgin = 88 ; len 8 table indirect move for msgin | |
| ABSOLUTE dsa_status = 96 ; len 8 table indirect move for status byte | |
| ABSOLUTE dsa_msgout_other = 104 ; len 8 table indirect for normal message out | |
| ; (Synchronous transfer negotiation, etc). | |
| ABSOLUTE dsa_end = 112 | |
| ABSOLUTE schedule = 0 ; Array of JUMP dsa_begin or JUMP (next), | |
| ; terminated by a call to JUMP wait_reselect | |
| ; Linked lists of DSA structures | |
| ABSOLUTE reconnect_dsa_head = 0 ; Link list of DSAs which can reconnect | |
| ABSOLUTE addr_reconnect_dsa_head = 0 ; Address of variable containing | |
| ; address of reconnect_dsa_head | |
| ; These select the source and destination of a MOVE MEMORY instruction | |
| ABSOLUTE dmode_memory_to_memory = 0x0 | |
| ABSOLUTE dmode_memory_to_ncr = 0x0 | |
| ABSOLUTE dmode_ncr_to_memory = 0x0 | |
| ABSOLUTE addr_scratch = 0x0 | |
| ABSOLUTE addr_temp = 0x0 | |
| ABSOLUTE saved_dsa = 0x0 | |
| ABSOLUTE emulfly = 0x0 | |
| ABSOLUTE addr_dsa = 0x0 | |
| ; Interrupts - | |
| ; MSB indicates type | |
| ; 0 handle error condition | |
| ; 1 handle message | |
| ; 2 handle normal condition | |
| ; 3 debugging interrupt | |
| ; 4 testing interrupt | |
| ; Next byte indicates specific error | |
| ; XXX not yet implemented, I'm not sure if I want to - | |
| ; Next byte indicates the routine the error occurred in | |
| ; The LSB indicates the specific place the error occurred | |
| ABSOLUTE int_err_unexpected_phase = 0x00000000 ; Unexpected phase encountered | |
| ABSOLUTE int_err_selected = 0x00010000 ; SELECTED (nee RESELECTED) | |
| ABSOLUTE int_err_unexpected_reselect = 0x00020000 | |
| ABSOLUTE int_err_check_condition = 0x00030000 | |
| ABSOLUTE int_err_no_phase = 0x00040000 | |
| ABSOLUTE int_msg_wdtr = 0x01000000 ; WDTR message received | |
| ABSOLUTE int_msg_sdtr = 0x01010000 ; SDTR received | |
| ABSOLUTE int_msg_1 = 0x01020000 ; single byte special message | |
| ; received | |
| ABSOLUTE int_norm_select_complete = 0x02000000 ; Select complete, reprogram | |
| ; registers. | |
| ABSOLUTE int_norm_reselect_complete = 0x02010000 ; Nexus established | |
| ABSOLUTE int_norm_command_complete = 0x02020000 ; Command complete | |
| ABSOLUTE int_norm_disconnected = 0x02030000 ; Disconnected | |
| ABSOLUTE int_norm_aborted =0x02040000 ; Aborted *dsa | |
| ABSOLUTE int_norm_reset = 0x02050000 ; Generated BUS reset. | |
| ABSOLUTE int_norm_emulateintfly = 0x02060000 ; 53C710 Emulated intfly | |
| ABSOLUTE int_debug_break = 0x03000000 ; Break point | |
| ABSOLUTE int_debug_panic = 0x030b0000 ; Panic driver | |
| ABSOLUTE int_test_1 = 0x04000000 ; Test 1 complete | |
| ABSOLUTE int_test_2 = 0x04010000 ; Test 2 complete | |
| ABSOLUTE int_test_3 = 0x04020000 ; Test 3 complete | |
| ; These should start with 0x05000000, with low bits incrementing for | |
| ; each one. | |
| ABSOLUTE NCR53c7xx_msg_abort = 0 ; Pointer to abort message | |
| ABSOLUTE NCR53c7xx_msg_reject = 0 ; Pointer to reject message | |
| ABSOLUTE NCR53c7xx_zero = 0 ; long with zero in it, use for source | |
| ABSOLUTE NCR53c7xx_sink = 0 ; long to dump worthless data in | |
| ABSOLUTE NOP_insn = 0 ; NOP instruction | |
| ; Pointer to message, potentially multi-byte | |
| ABSOLUTE msg_buf = 0 | |
| ; Pointer to holding area for reselection information | |
| ABSOLUTE reselected_identify = 0 | |
| ABSOLUTE reselected_tag = 0 | |
| ; Request sense command pointer, it's a 6 byte command, should | |
| ; be constant for all commands since we always want 16 bytes of | |
| ; sense and we don't need to change any fields as we did under | |
| ; SCSI-I when we actually cared about the LUN field. | |
| ;EXTERNAL NCR53c7xx_sense ; Request sense command | |
| ; dsa_schedule | |
| ; PURPOSE : after a DISCONNECT message has been received, and pointers | |
| ; saved, insert the current DSA structure at the head of the | |
| ; disconnected queue and fall through to the scheduler. | |
| ; | |
| ; CALLS : OK | |
| ; | |
| ; INPUTS : dsa - current DSA structure, reconnect_dsa_head - list | |
| ; of disconnected commands | |
| ; | |
| ; MODIFIES : SCRATCH, reconnect_dsa_head | |
| ; | |
| ; EXITS : always passes control to schedule | |
| ENTRY dsa_schedule | |
| dsa_schedule: | |
| ; | |
| ; Calculate the address of the next pointer within the DSA | |
| ; structure of the command that is currently disconnecting | |
| ; | |
| ; Read what should be the current DSA from memory - actual DSA | |
| ; register is probably corrupt | |
| MOVE MEMORY 4, saved_dsa, addr_scratch | |
| at 0x0000005e : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| MOVE SCRATCH0 + dsa_next TO SCRATCH0 | |
| at 0x00000061 : */ 0x7e343000,0x00000000, | |
| /* | |
| MOVE SCRATCH1 + 0 TO SCRATCH1 WITH CARRY | |
| at 0x00000063 : */ 0x7f350000,0x00000000, | |
| /* | |
| MOVE SCRATCH2 + 0 TO SCRATCH2 WITH CARRY | |
| at 0x00000065 : */ 0x7f360000,0x00000000, | |
| /* | |
| MOVE SCRATCH3 + 0 TO SCRATCH3 WITH CARRY | |
| at 0x00000067 : */ 0x7f370000,0x00000000, | |
| /* | |
| ; Point the next field of this DSA structure at the current disconnected | |
| ; list | |
| MOVE MEMORY 4, addr_scratch, dsa_schedule_insert + 8 | |
| at 0x00000069 : */ 0xc0000004,0x00000000,0x000001b8, | |
| /* | |
| dsa_schedule_insert: | |
| MOVE MEMORY 4, reconnect_dsa_head, 0 | |
| at 0x0000006c : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| ; And update the head pointer. | |
| ; Read what should be the current DSA from memory - actual DSA | |
| ; register is probably corrupt | |
| MOVE MEMORY 4, saved_dsa, addr_scratch | |
| at 0x0000006f : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, reconnect_dsa_head | |
| at 0x00000072 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| CLEAR ACK | |
| at 0x00000075 : */ 0x60000040,0x00000000, | |
| /* | |
| ; Time to correct DSA following memory move | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x00000077 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| WAIT DISCONNECT | |
| at 0x0000007a : */ 0x48000000,0x00000000, | |
| /* | |
| JUMP schedule | |
| at 0x0000007c : */ 0x80080000,0x00000000, | |
| /* | |
| ; | |
| ; select | |
| ; | |
| ; PURPOSE : establish a nexus for the SCSI command referenced by DSA. | |
| ; On success, the current DSA structure is removed from the issue | |
| ; queue. Usually, this is entered as a fall-through from schedule, | |
| ; although the contingent allegiance handling code will write | |
| ; the select entry address to the DSP to restart a command as a | |
| ; REQUEST SENSE. A message is sent (usually IDENTIFY, although | |
| ; additional SDTR or WDTR messages may be sent). COMMAND OUT | |
| ; is handled. | |
| ; | |
| ; INPUTS : DSA - SCSI command, issue_dsa_head | |
| ; | |
| ; CALLS : NOT OK | |
| ; | |
| ; MODIFIES : SCRATCH, issue_dsa_head | |
| ; | |
| ; EXITS : on reselection or selection, go to select_failed | |
| ; otherwise, RETURN so control is passed back to | |
| ; dsa_begin. | |
| ; | |
| ENTRY select | |
| select: | |
| CLEAR TARGET | |
| at 0x0000007e : */ 0x60000200,0x00000000, | |
| /* | |
| ; XXX | |
| ; | |
| ; In effect, SELECTION operations are backgrounded, with execution | |
| ; continuing until code which waits for REQ or a fatal interrupt is | |
| ; encountered. | |
| ; | |
| ; So, for more performance, we could overlap the code which removes | |
| ; the command from the NCRs issue queue with the selection, but | |
| ; at this point I don't want to deal with the error recovery. | |
| ; | |
| ; Enable selection timer | |
| MOVE CTEST7 & 0xef TO CTEST7 | |
| at 0x00000080 : */ 0x7c1bef00,0x00000000, | |
| /* | |
| SELECT ATN FROM dsa_select, select_failed | |
| at 0x00000082 : */ 0x4300003c,0x00000828, | |
| /* | |
| JUMP select_msgout, WHEN MSG_OUT | |
| at 0x00000084 : */ 0x860b0000,0x00000218, | |
| /* | |
| ENTRY select_msgout | |
| select_msgout: | |
| ; Disable selection timer | |
| MOVE CTEST7 | 0x10 TO CTEST7 | |
| at 0x00000086 : */ 0x7a1b1000,0x00000000, | |
| /* | |
| MOVE FROM dsa_msgout, WHEN MSG_OUT | |
| at 0x00000088 : */ 0x1e000000,0x00000040, | |
| /* | |
| RETURN | |
| at 0x0000008a : */ 0x90080000,0x00000000, | |
| /* | |
| ; | |
| ; select_done | |
| ; | |
| ; PURPOSE: continue on to normal data transfer; called as the exit | |
| ; point from dsa_begin. | |
| ; | |
| ; INPUTS: dsa | |
| ; | |
| ; CALLS: OK | |
| ; | |
| ; | |
| select_done: | |
| ; NOTE DSA is corrupt when we arrive here! | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x0000008c : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| ; After a successful selection, we should get either a CMD phase or | |
| ; some transfer request negotiation message. | |
| JUMP cmdout, WHEN CMD | |
| at 0x0000008f : */ 0x820b0000,0x0000025c, | |
| /* | |
| INT int_err_unexpected_phase, WHEN NOT MSG_IN | |
| at 0x00000091 : */ 0x9f030000,0x00000000, | |
| /* | |
| select_msg_in: | |
| CALL msg_in, WHEN MSG_IN | |
| at 0x00000093 : */ 0x8f0b0000,0x0000041c, | |
| /* | |
| JUMP select_msg_in, WHEN MSG_IN | |
| at 0x00000095 : */ 0x870b0000,0x0000024c, | |
| /* | |
| cmdout: | |
| INT int_err_unexpected_phase, WHEN NOT CMD | |
| at 0x00000097 : */ 0x9a030000,0x00000000, | |
| /* | |
| ENTRY cmdout_cmdout | |
| cmdout_cmdout: | |
| MOVE FROM dsa_cmdout, WHEN CMD | |
| at 0x00000099 : */ 0x1a000000,0x00000048, | |
| /* | |
| ; | |
| ; data_transfer | |
| ; other_out | |
| ; other_in | |
| ; other_transfer | |
| ; | |
| ; PURPOSE : handle the main data transfer for a SCSI command in | |
| ; several parts. In the first part, data_transfer, DATA_IN | |
| ; and DATA_OUT phases are allowed, with the user provided | |
| ; code (usually dynamically generated based on the scatter/gather | |
| ; list associated with a SCSI command) called to handle these | |
| ; phases. | |
| ; | |
| ; After control has passed to one of the user provided | |
| ; DATA_IN or DATA_OUT routines, back calls are made to | |
| ; other_transfer_in or other_transfer_out to handle non-DATA IN | |
| ; and DATA OUT phases respectively, with the state of the active | |
| ; data pointer being preserved in TEMP. | |
| ; | |
| ; On completion, the user code passes control to other_transfer | |
| ; which causes DATA_IN and DATA_OUT to result in unexpected_phase | |
| ; interrupts so that data overruns may be trapped. | |
| ; | |
| ; INPUTS : DSA - SCSI command | |
| ; | |
| ; CALLS : OK in data_transfer_start, not ok in other_out and other_in, ok in | |
| ; other_transfer | |
| ; | |
| ; MODIFIES : SCRATCH | |
| ; | |
| ; EXITS : if STATUS IN is detected, signifying command completion, | |
| ; the NCR jumps to command_complete. If MSG IN occurs, a | |
| ; CALL is made to msg_in. Otherwise, other_transfer runs in | |
| ; an infinite loop. | |
| ; | |
| ENTRY data_transfer | |
| data_transfer: | |
| JUMP cmdout_cmdout, WHEN CMD | |
| at 0x0000009b : */ 0x820b0000,0x00000264, | |
| /* | |
| CALL msg_in, WHEN MSG_IN | |
| at 0x0000009d : */ 0x8f0b0000,0x0000041c, | |
| /* | |
| INT int_err_unexpected_phase, WHEN MSG_OUT | |
| at 0x0000009f : */ 0x9e0b0000,0x00000000, | |
| /* | |
| JUMP do_dataout, WHEN DATA_OUT | |
| at 0x000000a1 : */ 0x800b0000,0x000002a4, | |
| /* | |
| JUMP do_datain, WHEN DATA_IN | |
| at 0x000000a3 : */ 0x810b0000,0x000002fc, | |
| /* | |
| JUMP command_complete, WHEN STATUS | |
| at 0x000000a5 : */ 0x830b0000,0x0000065c, | |
| /* | |
| JUMP data_transfer | |
| at 0x000000a7 : */ 0x80080000,0x0000026c, | |
| /* | |
| ENTRY end_data_transfer | |
| end_data_transfer: | |
| ; | |
| ; FIXME: On NCR53c700 and NCR53c700-66 chips, do_dataout/do_datain | |
| ; should be fixed up whenever the nexus changes so it can point to the | |
| ; correct routine for that command. | |
| ; | |
| ; Nasty jump to dsa->dataout | |
| do_dataout: | |
| MOVE MEMORY 4, saved_dsa, addr_scratch | |
| at 0x000000a9 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| MOVE SCRATCH0 + dsa_dataout TO SCRATCH0 | |
| at 0x000000ac : */ 0x7e345000,0x00000000, | |
| /* | |
| MOVE SCRATCH1 + 0 TO SCRATCH1 WITH CARRY | |
| at 0x000000ae : */ 0x7f350000,0x00000000, | |
| /* | |
| MOVE SCRATCH2 + 0 TO SCRATCH2 WITH CARRY | |
| at 0x000000b0 : */ 0x7f360000,0x00000000, | |
| /* | |
| MOVE SCRATCH3 + 0 TO SCRATCH3 WITH CARRY | |
| at 0x000000b2 : */ 0x7f370000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, dataout_to_jump + 4 | |
| at 0x000000b4 : */ 0xc0000004,0x00000000,0x000002e0, | |
| /* | |
| dataout_to_jump: | |
| MOVE MEMORY 4, 0, dataout_jump + 4 | |
| at 0x000000b7 : */ 0xc0000004,0x00000000,0x000002f8, | |
| /* | |
| ; Time to correct DSA following memory move | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x000000ba : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| dataout_jump: | |
| JUMP 0 | |
| at 0x000000bd : */ 0x80080000,0x00000000, | |
| /* | |
| ; Nasty jump to dsa->dsain | |
| do_datain: | |
| MOVE MEMORY 4, saved_dsa, addr_scratch | |
| at 0x000000bf : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| MOVE SCRATCH0 + dsa_datain TO SCRATCH0 | |
| at 0x000000c2 : */ 0x7e345400,0x00000000, | |
| /* | |
| MOVE SCRATCH1 + 0 TO SCRATCH1 WITH CARRY | |
| at 0x000000c4 : */ 0x7f350000,0x00000000, | |
| /* | |
| MOVE SCRATCH2 + 0 TO SCRATCH2 WITH CARRY | |
| at 0x000000c6 : */ 0x7f360000,0x00000000, | |
| /* | |
| MOVE SCRATCH3 + 0 TO SCRATCH3 WITH CARRY | |
| at 0x000000c8 : */ 0x7f370000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, datain_to_jump + 4 | |
| at 0x000000ca : */ 0xc0000004,0x00000000,0x00000338, | |
| /* | |
| ENTRY datain_to_jump | |
| datain_to_jump: | |
| MOVE MEMORY 4, 0, datain_jump + 4 | |
| at 0x000000cd : */ 0xc0000004,0x00000000,0x00000350, | |
| /* | |
| ; Time to correct DSA following memory move | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x000000d0 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| datain_jump: | |
| JUMP 0 | |
| at 0x000000d3 : */ 0x80080000,0x00000000, | |
| /* | |
| ; Note that other_out and other_in loop until a non-data phase | |
| ; is discovered, so we only execute return statements when we | |
| ; can go on to the next data phase block move statement. | |
| ENTRY other_out | |
| other_out: | |
| INT int_err_unexpected_phase, WHEN CMD | |
| at 0x000000d5 : */ 0x9a0b0000,0x00000000, | |
| /* | |
| JUMP msg_in_restart, WHEN MSG_IN | |
| at 0x000000d7 : */ 0x870b0000,0x000003fc, | |
| /* | |
| INT int_err_unexpected_phase, WHEN MSG_OUT | |
| at 0x000000d9 : */ 0x9e0b0000,0x00000000, | |
| /* | |
| INT int_err_unexpected_phase, WHEN DATA_IN | |
| at 0x000000db : */ 0x990b0000,0x00000000, | |
| /* | |
| JUMP command_complete, WHEN STATUS | |
| at 0x000000dd : */ 0x830b0000,0x0000065c, | |
| /* | |
| JUMP other_out, WHEN NOT DATA_OUT | |
| at 0x000000df : */ 0x80030000,0x00000354, | |
| /* | |
| ; TEMP should be OK, as we got here from a call in the user dataout code. | |
| RETURN | |
| at 0x000000e1 : */ 0x90080000,0x00000000, | |
| /* | |
| ENTRY other_in | |
| other_in: | |
| INT int_err_unexpected_phase, WHEN CMD | |
| at 0x000000e3 : */ 0x9a0b0000,0x00000000, | |
| /* | |
| JUMP msg_in_restart, WHEN MSG_IN | |
| at 0x000000e5 : */ 0x870b0000,0x000003fc, | |
| /* | |
| INT int_err_unexpected_phase, WHEN MSG_OUT | |
| at 0x000000e7 : */ 0x9e0b0000,0x00000000, | |
| /* | |
| INT int_err_unexpected_phase, WHEN DATA_OUT | |
| at 0x000000e9 : */ 0x980b0000,0x00000000, | |
| /* | |
| JUMP command_complete, WHEN STATUS | |
| at 0x000000eb : */ 0x830b0000,0x0000065c, | |
| /* | |
| JUMP other_in, WHEN NOT DATA_IN | |
| at 0x000000ed : */ 0x81030000,0x0000038c, | |
| /* | |
| ; TEMP should be OK, as we got here from a call in the user datain code. | |
| RETURN | |
| at 0x000000ef : */ 0x90080000,0x00000000, | |
| /* | |
| ENTRY other_transfer | |
| other_transfer: | |
| INT int_err_unexpected_phase, WHEN CMD | |
| at 0x000000f1 : */ 0x9a0b0000,0x00000000, | |
| /* | |
| CALL msg_in, WHEN MSG_IN | |
| at 0x000000f3 : */ 0x8f0b0000,0x0000041c, | |
| /* | |
| INT int_err_unexpected_phase, WHEN MSG_OUT | |
| at 0x000000f5 : */ 0x9e0b0000,0x00000000, | |
| /* | |
| INT int_err_unexpected_phase, WHEN DATA_OUT | |
| at 0x000000f7 : */ 0x980b0000,0x00000000, | |
| /* | |
| INT int_err_unexpected_phase, WHEN DATA_IN | |
| at 0x000000f9 : */ 0x990b0000,0x00000000, | |
| /* | |
| JUMP command_complete, WHEN STATUS | |
| at 0x000000fb : */ 0x830b0000,0x0000065c, | |
| /* | |
| JUMP other_transfer | |
| at 0x000000fd : */ 0x80080000,0x000003c4, | |
| /* | |
| ; | |
| ; msg_in_restart | |
| ; msg_in | |
| ; munge_msg | |
| ; | |
| ; PURPOSE : process messages from a target. msg_in is called when the | |
| ; caller hasn't read the first byte of the message. munge_message | |
| ; is called when the caller has read the first byte of the message, | |
| ; and left it in SFBR. msg_in_restart is called when the caller | |
| ; hasn't read the first byte of the message, and wishes RETURN | |
| ; to transfer control back to the address of the conditional | |
| ; CALL instruction rather than to the instruction after it. | |
| ; | |
| ; Various int_* interrupts are generated when the host system | |
| ; needs to intervene, as is the case with SDTR, WDTR, and | |
| ; INITIATE RECOVERY messages. | |
| ; | |
| ; When the host system handles one of these interrupts, | |
| ; it can respond by reentering at reject_message, | |
| ; which rejects the message and returns control to | |
| ; the caller of msg_in or munge_msg, accept_message | |
| ; which clears ACK and returns control, or reply_message | |
| ; which sends the message pointed to by the DSA | |
| ; msgout_other table indirect field. | |
| ; | |
| ; DISCONNECT messages are handled by moving the command | |
| ; to the reconnect_dsa_queue. | |
| ; NOTE: DSA should be valid when we get here - we cannot save both it | |
| ; and TEMP in this routine. | |
| ; | |
| ; INPUTS : DSA - SCSI COMMAND, SFBR - first byte of message (munge_msg | |
| ; only) | |
| ; | |
| ; CALLS : NO. The TEMP register isn't backed up to allow nested calls. | |
| ; | |
| ; MODIFIES : SCRATCH, DSA on DISCONNECT | |
| ; | |
| ; EXITS : On receipt of SAVE DATA POINTER, RESTORE POINTERS, | |
| ; and normal return from message handlers running under | |
| ; Linux, control is returned to the caller. Receipt | |
| ; of DISCONNECT messages pass control to dsa_schedule. | |
| ; | |
| ENTRY msg_in_restart | |
| msg_in_restart: | |
| ; XXX - hackish | |
| ; | |
| ; Since it's easier to debug changes to the statically | |
| ; compiled code, rather than the dynamically generated | |
| ; stuff, such as | |
| ; | |
| ; MOVE x, y, WHEN data_phase | |
| ; CALL other_z, WHEN NOT data_phase | |
| ; MOVE x, y, WHEN data_phase | |
| ; | |
| ; I'd like to have certain routines (notably the message handler) | |
| ; restart on the conditional call rather than the next instruction. | |
| ; | |
| ; So, subtract 8 from the return address | |
| MOVE TEMP0 + 0xf8 TO TEMP0 | |
| at 0x000000ff : */ 0x7e1cf800,0x00000000, | |
| /* | |
| MOVE TEMP1 + 0xff TO TEMP1 WITH CARRY | |
| at 0x00000101 : */ 0x7f1dff00,0x00000000, | |
| /* | |
| MOVE TEMP2 + 0xff TO TEMP2 WITH CARRY | |
| at 0x00000103 : */ 0x7f1eff00,0x00000000, | |
| /* | |
| MOVE TEMP3 + 0xff TO TEMP3 WITH CARRY | |
| at 0x00000105 : */ 0x7f1fff00,0x00000000, | |
| /* | |
| ENTRY msg_in | |
| msg_in: | |
| MOVE 1, msg_buf, WHEN MSG_IN | |
| at 0x00000107 : */ 0x0f000001,0x00000000, | |
| /* | |
| munge_msg: | |
| JUMP munge_extended, IF 0x01 ; EXTENDED MESSAGE | |
| at 0x00000109 : */ 0x800c0001,0x00000574, | |
| /* | |
| JUMP munge_2, IF 0x20, AND MASK 0xdf ; two byte message | |
| at 0x0000010b : */ 0x800cdf20,0x00000464, | |
| /* | |
| ; | |
| ; XXX - I've seen a handful of broken SCSI devices which fail to issue | |
| ; a SAVE POINTERS message before disconnecting in the middle of | |
| ; a transfer, assuming that the DATA POINTER will be implicitly | |
| ; restored. | |
| ; | |
| ; Historically, I've often done an implicit save when the DISCONNECT | |
| ; message is processed. We may want to consider having the option of | |
| ; doing that here. | |
| ; | |
| JUMP munge_save_data_pointer, IF 0x02 ; SAVE DATA POINTER | |
| at 0x0000010d : */ 0x800c0002,0x0000046c, | |
| /* | |
| JUMP munge_restore_pointers, IF 0x03 ; RESTORE POINTERS | |
| at 0x0000010f : */ 0x800c0003,0x00000518, | |
| /* | |
| JUMP munge_disconnect, IF 0x04 ; DISCONNECT | |
| at 0x00000111 : */ 0x800c0004,0x0000056c, | |
| /* | |
| INT int_msg_1, IF 0x07 ; MESSAGE REJECT | |
| at 0x00000113 : */ 0x980c0007,0x01020000, | |
| /* | |
| INT int_msg_1, IF 0x0f ; INITIATE RECOVERY | |
| at 0x00000115 : */ 0x980c000f,0x01020000, | |
| /* | |
| JUMP reject_message | |
| at 0x00000117 : */ 0x80080000,0x00000604, | |
| /* | |
| munge_2: | |
| JUMP reject_message | |
| at 0x00000119 : */ 0x80080000,0x00000604, | |
| /* | |
| ; | |
| ; The SCSI standard allows targets to recover from transient | |
| ; error conditions by backing up the data pointer with a | |
| ; RESTORE POINTERS message. | |
| ; | |
| ; So, we must save and restore the _residual_ code as well as | |
| ; the current instruction pointer. Because of this messiness, | |
| ; it is simpler to put dynamic code in the dsa for this and to | |
| ; just do a simple jump down there. | |
| ; | |
| munge_save_data_pointer: | |
| ; We have something in TEMP here, so first we must save that | |
| MOVE TEMP0 TO SFBR | |
| at 0x0000011b : */ 0x721c0000,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH0 | |
| at 0x0000011d : */ 0x6a340000,0x00000000, | |
| /* | |
| MOVE TEMP1 TO SFBR | |
| at 0x0000011f : */ 0x721d0000,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH1 | |
| at 0x00000121 : */ 0x6a350000,0x00000000, | |
| /* | |
| MOVE TEMP2 TO SFBR | |
| at 0x00000123 : */ 0x721e0000,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH2 | |
| at 0x00000125 : */ 0x6a360000,0x00000000, | |
| /* | |
| MOVE TEMP3 TO SFBR | |
| at 0x00000127 : */ 0x721f0000,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH3 | |
| at 0x00000129 : */ 0x6a370000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, jump_temp + 4 | |
| at 0x0000012b : */ 0xc0000004,0x00000000,0x000009c8, | |
| /* | |
| ; Now restore DSA | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x0000012e : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| MOVE DSA0 + dsa_save_data_pointer TO SFBR | |
| at 0x00000131 : */ 0x76100000,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH0 | |
| at 0x00000133 : */ 0x6a340000,0x00000000, | |
| /* | |
| MOVE DSA1 + 0xff TO SFBR WITH CARRY | |
| at 0x00000135 : */ 0x7711ff00,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH1 | |
| at 0x00000137 : */ 0x6a350000,0x00000000, | |
| /* | |
| MOVE DSA2 + 0xff TO SFBR WITH CARRY | |
| at 0x00000139 : */ 0x7712ff00,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH2 | |
| at 0x0000013b : */ 0x6a360000,0x00000000, | |
| /* | |
| MOVE DSA3 + 0xff TO SFBR WITH CARRY | |
| at 0x0000013d : */ 0x7713ff00,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH3 | |
| at 0x0000013f : */ 0x6a370000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, jump_dsa_save + 4 | |
| at 0x00000141 : */ 0xc0000004,0x00000000,0x00000514, | |
| /* | |
| jump_dsa_save: | |
| JUMP 0 | |
| at 0x00000144 : */ 0x80080000,0x00000000, | |
| /* | |
| munge_restore_pointers: | |
| ; The code at dsa_restore_pointers will RETURN, but we don't care | |
| ; about TEMP here, as it will overwrite it anyway. | |
| MOVE DSA0 + dsa_restore_pointers TO SFBR | |
| at 0x00000146 : */ 0x76100000,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH0 | |
| at 0x00000148 : */ 0x6a340000,0x00000000, | |
| /* | |
| MOVE DSA1 + 0xff TO SFBR WITH CARRY | |
| at 0x0000014a : */ 0x7711ff00,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH1 | |
| at 0x0000014c : */ 0x6a350000,0x00000000, | |
| /* | |
| MOVE DSA2 + 0xff TO SFBR WITH CARRY | |
| at 0x0000014e : */ 0x7712ff00,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH2 | |
| at 0x00000150 : */ 0x6a360000,0x00000000, | |
| /* | |
| MOVE DSA3 + 0xff TO SFBR WITH CARRY | |
| at 0x00000152 : */ 0x7713ff00,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH3 | |
| at 0x00000154 : */ 0x6a370000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, jump_dsa_restore + 4 | |
| at 0x00000156 : */ 0xc0000004,0x00000000,0x00000568, | |
| /* | |
| jump_dsa_restore: | |
| JUMP 0 | |
| at 0x00000159 : */ 0x80080000,0x00000000, | |
| /* | |
| munge_disconnect: | |
| JUMP dsa_schedule | |
| at 0x0000015b : */ 0x80080000,0x00000178, | |
| /* | |
| munge_extended: | |
| CLEAR ACK | |
| at 0x0000015d : */ 0x60000040,0x00000000, | |
| /* | |
| INT int_err_unexpected_phase, WHEN NOT MSG_IN | |
| at 0x0000015f : */ 0x9f030000,0x00000000, | |
| /* | |
| MOVE 1, msg_buf + 1, WHEN MSG_IN | |
| at 0x00000161 : */ 0x0f000001,0x00000001, | |
| /* | |
| JUMP munge_extended_2, IF 0x02 | |
| at 0x00000163 : */ 0x800c0002,0x000005a4, | |
| /* | |
| JUMP munge_extended_3, IF 0x03 | |
| at 0x00000165 : */ 0x800c0003,0x000005d4, | |
| /* | |
| JUMP reject_message | |
| at 0x00000167 : */ 0x80080000,0x00000604, | |
| /* | |
| munge_extended_2: | |
| CLEAR ACK | |
| at 0x00000169 : */ 0x60000040,0x00000000, | |
| /* | |
| MOVE 1, msg_buf + 2, WHEN MSG_IN | |
| at 0x0000016b : */ 0x0f000001,0x00000002, | |
| /* | |
| JUMP reject_message, IF NOT 0x02 ; Must be WDTR | |
| at 0x0000016d : */ 0x80040002,0x00000604, | |
| /* | |
| CLEAR ACK | |
| at 0x0000016f : */ 0x60000040,0x00000000, | |
| /* | |
| MOVE 1, msg_buf + 3, WHEN MSG_IN | |
| at 0x00000171 : */ 0x0f000001,0x00000003, | |
| /* | |
| INT int_msg_wdtr | |
| at 0x00000173 : */ 0x98080000,0x01000000, | |
| /* | |
| munge_extended_3: | |
| CLEAR ACK | |
| at 0x00000175 : */ 0x60000040,0x00000000, | |
| /* | |
| MOVE 1, msg_buf + 2, WHEN MSG_IN | |
| at 0x00000177 : */ 0x0f000001,0x00000002, | |
| /* | |
| JUMP reject_message, IF NOT 0x01 ; Must be SDTR | |
| at 0x00000179 : */ 0x80040001,0x00000604, | |
| /* | |
| CLEAR ACK | |
| at 0x0000017b : */ 0x60000040,0x00000000, | |
| /* | |
| MOVE 2, msg_buf + 3, WHEN MSG_IN | |
| at 0x0000017d : */ 0x0f000002,0x00000003, | |
| /* | |
| INT int_msg_sdtr | |
| at 0x0000017f : */ 0x98080000,0x01010000, | |
| /* | |
| ENTRY reject_message | |
| reject_message: | |
| SET ATN | |
| at 0x00000181 : */ 0x58000008,0x00000000, | |
| /* | |
| CLEAR ACK | |
| at 0x00000183 : */ 0x60000040,0x00000000, | |
| /* | |
| MOVE 1, NCR53c7xx_msg_reject, WHEN MSG_OUT | |
| at 0x00000185 : */ 0x0e000001,0x00000000, | |
| /* | |
| RETURN | |
| at 0x00000187 : */ 0x90080000,0x00000000, | |
| /* | |
| ENTRY accept_message | |
| accept_message: | |
| CLEAR ATN | |
| at 0x00000189 : */ 0x60000008,0x00000000, | |
| /* | |
| CLEAR ACK | |
| at 0x0000018b : */ 0x60000040,0x00000000, | |
| /* | |
| RETURN | |
| at 0x0000018d : */ 0x90080000,0x00000000, | |
| /* | |
| ENTRY respond_message | |
| respond_message: | |
| SET ATN | |
| at 0x0000018f : */ 0x58000008,0x00000000, | |
| /* | |
| CLEAR ACK | |
| at 0x00000191 : */ 0x60000040,0x00000000, | |
| /* | |
| MOVE FROM dsa_msgout_other, WHEN MSG_OUT | |
| at 0x00000193 : */ 0x1e000000,0x00000068, | |
| /* | |
| RETURN | |
| at 0x00000195 : */ 0x90080000,0x00000000, | |
| /* | |
| ; | |
| ; command_complete | |
| ; | |
| ; PURPOSE : handle command termination when STATUS IN is detected by reading | |
| ; a status byte followed by a command termination message. | |
| ; | |
| ; Normal termination results in an INTFLY instruction, and | |
| ; the host system can pick out which command terminated by | |
| ; examining the MESSAGE and STATUS buffers of all currently | |
| ; executing commands; | |
| ; | |
| ; Abnormal (CHECK_CONDITION) termination results in an | |
| ; int_err_check_condition interrupt so that a REQUEST SENSE | |
| ; command can be issued out-of-order so that no other command | |
| ; clears the contingent allegiance condition. | |
| ; | |
| ; | |
| ; INPUTS : DSA - command | |
| ; | |
| ; CALLS : OK | |
| ; | |
| ; EXITS : On successful termination, control is passed to schedule. | |
| ; On abnormal termination, the user will usually modify the | |
| ; DSA fields and corresponding buffers and return control | |
| ; to select. | |
| ; | |
| ENTRY command_complete | |
| command_complete: | |
| MOVE FROM dsa_status, WHEN STATUS | |
| at 0x00000197 : */ 0x1b000000,0x00000060, | |
| /* | |
| MOVE SFBR TO SCRATCH0 ; Save status | |
| at 0x00000199 : */ 0x6a340000,0x00000000, | |
| /* | |
| ENTRY command_complete_msgin | |
| command_complete_msgin: | |
| MOVE FROM dsa_msgin, WHEN MSG_IN | |
| at 0x0000019b : */ 0x1f000000,0x00000058, | |
| /* | |
| ; Indicate that we should be expecting a disconnect | |
| ; Above code cleared the Unexpected Disconnect bit, what do we do? | |
| CLEAR ACK | |
| at 0x0000019d : */ 0x60000040,0x00000000, | |
| /* | |
| WAIT DISCONNECT | |
| at 0x0000019f : */ 0x48000000,0x00000000, | |
| /* | |
| ; | |
| ; The SCSI specification states that when a UNIT ATTENTION condition | |
| ; is pending, as indicated by a CHECK CONDITION status message, | |
| ; the target shall revert to asynchronous transfers. Since | |
| ; synchronous transfers parameters are maintained on a per INITIATOR/TARGET | |
| ; basis, and returning control to our scheduler could work on a command | |
| ; running on another lun on that target using the old parameters, we must | |
| ; interrupt the host processor to get them changed, or change them ourselves. | |
| ; | |
| ; Once SCSI-II tagged queueing is implemented, things will be even more | |
| ; hairy, since contingent allegiance conditions exist on a per-target/lun | |
| ; basis, and issuing a new command with a different tag would clear it. | |
| ; In these cases, we must interrupt the host processor to get a request | |
| ; added to the HEAD of the queue with the request sense command, or we | |
| ; must automatically issue the request sense command. | |
| INT int_norm_emulateintfly | |
| at 0x000001a1 : */ 0x98080000,0x02060000, | |
| /* | |
| ; Time to correct DSA following memory move | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x000001a3 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| JUMP schedule | |
| at 0x000001a6 : */ 0x80080000,0x00000000, | |
| /* | |
| command_failed: | |
| INT int_err_check_condition | |
| at 0x000001a8 : */ 0x98080000,0x00030000, | |
| /* | |
| ; | |
| ; wait_reselect | |
| ; | |
| ; PURPOSE : This is essentially the idle routine, where control lands | |
| ; when there are no new processes to schedule. wait_reselect | |
| ; waits for reselection, selection, and new commands. | |
| ; | |
| ; When a successful reselection occurs, with the aid | |
| ; of fixed up code in each DSA, wait_reselect walks the | |
| ; reconnect_dsa_queue, asking each dsa if the target ID | |
| ; and LUN match its. | |
| ; | |
| ; If a match is found, a call is made back to reselected_ok, | |
| ; which through the miracles of self modifying code, extracts | |
| ; the found DSA from the reconnect_dsa_queue and then | |
| ; returns control to the DSAs thread of execution. | |
| ; | |
| ; INPUTS : NONE | |
| ; | |
| ; CALLS : OK | |
| ; | |
| ; MODIFIES : DSA, | |
| ; | |
| ; EXITS : On successful reselection, control is returned to the | |
| ; DSA which called reselected_ok. If the WAIT RESELECT | |
| ; was interrupted by a new commands arrival signaled by | |
| ; SIG_P, control is passed to schedule. If the NCR is | |
| ; selected, the host system is interrupted with an | |
| ; int_err_selected which is usually responded to by | |
| ; setting DSP to the target_abort address. | |
| ENTRY wait_reselect | |
| wait_reselect: | |
| WAIT RESELECT wait_reselect_failed | |
| at 0x000001aa : */ 0x50000000,0x00000800, | |
| /* | |
| reselected: | |
| CLEAR TARGET | |
| at 0x000001ac : */ 0x60000200,0x00000000, | |
| /* | |
| ; Read all data needed to reestablish the nexus - | |
| MOVE 1, reselected_identify, WHEN MSG_IN | |
| at 0x000001ae : */ 0x0f000001,0x00000000, | |
| /* | |
| ; We used to CLEAR ACK here. | |
| ; Point DSA at the current head of the disconnected queue. | |
| MOVE MEMORY 4, reconnect_dsa_head, addr_scratch | |
| at 0x000001b0 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, saved_dsa | |
| at 0x000001b3 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| ; Fix the update-next pointer so that the reconnect_dsa_head | |
| ; pointer is the one that will be updated if this DSA is a hit | |
| ; and we remove it from the queue. | |
| MOVE MEMORY 4, addr_reconnect_dsa_head, reselected_ok_patch + 8 | |
| at 0x000001b6 : */ 0xc0000004,0x00000000,0x000007ec, | |
| /* | |
| ; Time to correct DSA following memory move | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x000001b9 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| ENTRY reselected_check_next | |
| reselected_check_next: | |
| ; Check for a NULL pointer. | |
| MOVE DSA0 TO SFBR | |
| at 0x000001bc : */ 0x72100000,0x00000000, | |
| /* | |
| JUMP reselected_not_end, IF NOT 0 | |
| at 0x000001be : */ 0x80040000,0x00000738, | |
| /* | |
| MOVE DSA1 TO SFBR | |
| at 0x000001c0 : */ 0x72110000,0x00000000, | |
| /* | |
| JUMP reselected_not_end, IF NOT 0 | |
| at 0x000001c2 : */ 0x80040000,0x00000738, | |
| /* | |
| MOVE DSA2 TO SFBR | |
| at 0x000001c4 : */ 0x72120000,0x00000000, | |
| /* | |
| JUMP reselected_not_end, IF NOT 0 | |
| at 0x000001c6 : */ 0x80040000,0x00000738, | |
| /* | |
| MOVE DSA3 TO SFBR | |
| at 0x000001c8 : */ 0x72130000,0x00000000, | |
| /* | |
| JUMP reselected_not_end, IF NOT 0 | |
| at 0x000001ca : */ 0x80040000,0x00000738, | |
| /* | |
| INT int_err_unexpected_reselect | |
| at 0x000001cc : */ 0x98080000,0x00020000, | |
| /* | |
| reselected_not_end: | |
| ; | |
| ; XXX the ALU is only eight bits wide, and the assembler | |
| ; wont do the dirt work for us. As long as dsa_check_reselect | |
| ; is negative, we need to sign extend with 1 bits to the full | |
| ; 32 bit width of the address. | |
| ; | |
| ; A potential work around would be to have a known alignment | |
| ; of the DSA structure such that the base address plus | |
| ; dsa_check_reselect doesn't require carrying from bytes | |
| ; higher than the LSB. | |
| ; | |
| MOVE DSA0 TO SFBR | |
| at 0x000001ce : */ 0x72100000,0x00000000, | |
| /* | |
| MOVE SFBR + dsa_check_reselect TO SCRATCH0 | |
| at 0x000001d0 : */ 0x6e340000,0x00000000, | |
| /* | |
| MOVE DSA1 TO SFBR | |
| at 0x000001d2 : */ 0x72110000,0x00000000, | |
| /* | |
| MOVE SFBR + 0xff TO SCRATCH1 WITH CARRY | |
| at 0x000001d4 : */ 0x6f35ff00,0x00000000, | |
| /* | |
| MOVE DSA2 TO SFBR | |
| at 0x000001d6 : */ 0x72120000,0x00000000, | |
| /* | |
| MOVE SFBR + 0xff TO SCRATCH2 WITH CARRY | |
| at 0x000001d8 : */ 0x6f36ff00,0x00000000, | |
| /* | |
| MOVE DSA3 TO SFBR | |
| at 0x000001da : */ 0x72130000,0x00000000, | |
| /* | |
| MOVE SFBR + 0xff TO SCRATCH3 WITH CARRY | |
| at 0x000001dc : */ 0x6f37ff00,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, reselected_check + 4 | |
| at 0x000001de : */ 0xc0000004,0x00000000,0x00000794, | |
| /* | |
| ; Time to correct DSA following memory move | |
| MOVE MEMORY 4, saved_dsa, addr_dsa | |
| at 0x000001e1 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| reselected_check: | |
| JUMP 0 | |
| at 0x000001e4 : */ 0x80080000,0x00000000, | |
| /* | |
| ; | |
| ; | |
| ; We have problems here - the memory move corrupts TEMP and DSA. This | |
| ; routine is called from DSA code, and patched from many places. Scratch | |
| ; is probably free when it is called. | |
| ; We have to: | |
| ; copy temp to scratch, one byte at a time | |
| ; write scratch to patch a jump in place of the return | |
| ; do the move memory | |
| ; jump to the patched in return address | |
| ; DSA is corrupt when we get here, and can be left corrupt | |
| ENTRY reselected_ok | |
| reselected_ok: | |
| MOVE TEMP0 TO SFBR | |
| at 0x000001e6 : */ 0x721c0000,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH0 | |
| at 0x000001e8 : */ 0x6a340000,0x00000000, | |
| /* | |
| MOVE TEMP1 TO SFBR | |
| at 0x000001ea : */ 0x721d0000,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH1 | |
| at 0x000001ec : */ 0x6a350000,0x00000000, | |
| /* | |
| MOVE TEMP2 TO SFBR | |
| at 0x000001ee : */ 0x721e0000,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH2 | |
| at 0x000001f0 : */ 0x6a360000,0x00000000, | |
| /* | |
| MOVE TEMP3 TO SFBR | |
| at 0x000001f2 : */ 0x721f0000,0x00000000, | |
| /* | |
| MOVE SFBR TO SCRATCH3 | |
| at 0x000001f4 : */ 0x6a370000,0x00000000, | |
| /* | |
| MOVE MEMORY 4, addr_scratch, reselected_ok_jump + 4 | |
| at 0x000001f6 : */ 0xc0000004,0x00000000,0x000007f4, | |
| /* | |
| reselected_ok_patch: | |
| MOVE MEMORY 4, 0, 0 | |
| at 0x000001f9 : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| reselected_ok_jump: | |
| JUMP 0 | |
| at 0x000001fc : */ 0x80080000,0x00000000, | |
| /* | |
| selected: | |
| INT int_err_selected; | |
| at 0x000001fe : */ 0x98080000,0x00010000, | |
| /* | |
| ; | |
| ; A select or reselect failure can be caused by one of two conditions : | |
| ; 1. SIG_P was set. This will be the case if the user has written | |
| ; a new value to a previously NULL head of the issue queue. | |
| ; | |
| ; 2. The NCR53c810 was selected or reselected by another device. | |
| ; | |
| ; 3. The bus was already busy since we were selected or reselected | |
| ; before starting the command. | |
| wait_reselect_failed: | |
| ; Check selected bit. | |
| ; Must work out how to tell if we are selected.... | |
| ; Reading CTEST2 clears the SIG_P bit in the ISTAT register. | |
| MOVE CTEST2 & 0x40 TO SFBR | |
| at 0x00000200 : */ 0x74164000,0x00000000, | |
| /* | |
| JUMP schedule, IF 0x40 | |
| at 0x00000202 : */ 0x800c0040,0x00000000, | |
| /* | |
| ; Check connected bit. | |
| ; FIXME: this needs to change if we support target mode | |
| MOVE ISTAT & 0x08 TO SFBR | |
| at 0x00000204 : */ 0x74210800,0x00000000, | |
| /* | |
| JUMP reselected, IF 0x08 | |
| at 0x00000206 : */ 0x800c0008,0x000006b0, | |
| /* | |
| ; FIXME : Something bogus happened, and we shouldn't fail silently. | |
| INT int_debug_panic | |
| at 0x00000208 : */ 0x98080000,0x030b0000, | |
| /* | |
| select_failed: | |
| ; Disable selection timer | |
| MOVE CTEST7 | 0x10 TO CTEST7 | |
| at 0x0000020a : */ 0x7a1b1000,0x00000000, | |
| /* | |
| ; Otherwise, mask the selected and reselected bits off SIST0 | |
| ; Let's assume we don't get selected for now | |
| MOVE SSTAT0 & 0x10 TO SFBR | |
| at 0x0000020c : */ 0x740d1000,0x00000000, | |
| /* | |
| JUMP reselected, IF 0x10 | |
| at 0x0000020e : */ 0x800c0010,0x000006b0, | |
| /* | |
| ; If SIGP is set, the user just gave us another command, and | |
| ; we should restart or return to the scheduler. | |
| ; Reading CTEST2 clears the SIG_P bit in the ISTAT register. | |
| MOVE CTEST2 & 0x40 TO SFBR | |
| at 0x00000210 : */ 0x74164000,0x00000000, | |
| /* | |
| JUMP select, IF 0x40 | |
| at 0x00000212 : */ 0x800c0040,0x000001f8, | |
| /* | |
| ; Check connected bit. | |
| ; FIXME: this needs to change if we support target mode | |
| ; FIXME: is this really necessary? | |
| MOVE ISTAT & 0x08 TO SFBR | |
| at 0x00000214 : */ 0x74210800,0x00000000, | |
| /* | |
| JUMP reselected, IF 0x08 | |
| at 0x00000216 : */ 0x800c0008,0x000006b0, | |
| /* | |
| ; FIXME : Something bogus happened, and we shouldn't fail silently. | |
| INT int_debug_panic | |
| at 0x00000218 : */ 0x98080000,0x030b0000, | |
| /* | |
| ; | |
| ; test_1 | |
| ; test_2 | |
| ; | |
| ; PURPOSE : run some verification tests on the NCR. test_1 | |
| ; copies test_src to test_dest and interrupts the host | |
| ; processor, testing for cache coherency and interrupt | |
| ; problems in the processes. | |
| ; | |
| ; test_2 runs a command with offsets relative to the | |
| ; DSA on entry, and is useful for miscellaneous experimentation. | |
| ; | |
| ; Verify that interrupts are working correctly and that we don't | |
| ; have a cache invalidation problem. | |
| ABSOLUTE test_src = 0, test_dest = 0 | |
| ENTRY test_1 | |
| test_1: | |
| MOVE MEMORY 4, test_src, test_dest | |
| at 0x0000021a : */ 0xc0000004,0x00000000,0x00000000, | |
| /* | |
| INT int_test_1 | |
| at 0x0000021d : */ 0x98080000,0x04000000, | |
| /* | |
| ; | |
| ; Run arbitrary commands, with test code establishing a DSA | |
| ; | |
| ENTRY test_2 | |
| test_2: | |
| CLEAR TARGET | |
| at 0x0000021f : */ 0x60000200,0x00000000, | |
| /* | |
| ; Enable selection timer | |
| MOVE CTEST7 & 0xef TO CTEST7 | |
| at 0x00000221 : */ 0x7c1bef00,0x00000000, | |
| /* | |
| SELECT ATN FROM 0, test_2_fail | |
| at 0x00000223 : */ 0x43000000,0x000008dc, | |
| /* | |
| JUMP test_2_msgout, WHEN MSG_OUT | |
| at 0x00000225 : */ 0x860b0000,0x0000089c, | |
| /* | |
| ENTRY test_2_msgout | |
| test_2_msgout: | |
| ; Disable selection timer | |
| MOVE CTEST7 | 0x10 TO CTEST7 | |
| at 0x00000227 : */ 0x7a1b1000,0x00000000, | |
| /* | |
| MOVE FROM 8, WHEN MSG_OUT | |
| at 0x00000229 : */ 0x1e000000,0x00000008, | |
| /* | |
| MOVE FROM 16, WHEN CMD | |
| at 0x0000022b : */ 0x1a000000,0x00000010, | |
| /* | |
| MOVE FROM 24, WHEN DATA_IN | |
| at 0x0000022d : */ 0x19000000,0x00000018, | |
| /* | |
| MOVE FROM 32, WHEN STATUS | |
| at 0x0000022f : */ 0x1b000000,0x00000020, | |
| /* | |
| MOVE FROM 40, WHEN MSG_IN | |
| at 0x00000231 : */ 0x1f000000,0x00000028, | |
| /* | |
| CLEAR ACK | |
| at 0x00000233 : */ 0x60000040,0x00000000, | |
| /* | |
| WAIT DISCONNECT | |
| at 0x00000235 : */ 0x48000000,0x00000000, | |
| /* | |
| test_2_fail: | |
| ; Disable selection timer | |
| MOVE CTEST7 | 0x10 TO CTEST7 | |
| at 0x00000237 : */ 0x7a1b1000,0x00000000, | |
| /* | |
| INT int_test_2 | |
| at 0x00000239 : */ 0x98080000,0x04010000, | |
| /* | |
| ENTRY debug_break | |
| debug_break: | |
| INT int_debug_break | |
| at 0x0000023b : */ 0x98080000,0x03000000, | |
| /* | |
| ; | |
| ; initiator_abort | |
| ; target_abort | |
| ; | |
| ; PURPOSE : Abort the currently established nexus from with initiator | |
| ; or target mode. | |
| ; | |
| ; | |
| ENTRY target_abort | |
| target_abort: | |
| SET TARGET | |
| at 0x0000023d : */ 0x58000200,0x00000000, | |
| /* | |
| DISCONNECT | |
| at 0x0000023f : */ 0x48000000,0x00000000, | |
| /* | |
| CLEAR TARGET | |
| at 0x00000241 : */ 0x60000200,0x00000000, | |
| /* | |
| JUMP schedule | |
| at 0x00000243 : */ 0x80080000,0x00000000, | |
| /* | |
| ENTRY initiator_abort | |
| initiator_abort: | |
| SET ATN | |
| at 0x00000245 : */ 0x58000008,0x00000000, | |
| /* | |
| ; | |
| ; The SCSI-I specification says that targets may go into MSG out at | |
| ; their leisure upon receipt of the ATN single. On all versions of the | |
| ; specification, we can't change phases until REQ transitions true->false, | |
| ; so we need to sink/source one byte of data to allow the transition. | |
| ; | |
| ; For the sake of safety, we'll only source one byte of data in all | |
| ; cases, but to accommodate the SCSI-I dain bramage, we'll sink an | |
| ; arbitrary number of bytes. | |
| JUMP spew_cmd, WHEN CMD | |
| at 0x00000247 : */ 0x820b0000,0x0000094c, | |
| /* | |
| JUMP eat_msgin, WHEN MSG_IN | |
| at 0x00000249 : */ 0x870b0000,0x0000095c, | |
| /* | |
| JUMP eat_datain, WHEN DATA_IN | |
| at 0x0000024b : */ 0x810b0000,0x0000098c, | |
| /* | |
| JUMP eat_status, WHEN STATUS | |
| at 0x0000024d : */ 0x830b0000,0x00000974, | |
| /* | |
| JUMP spew_dataout, WHEN DATA_OUT | |
| at 0x0000024f : */ 0x800b0000,0x000009a4, | |
| /* | |
| JUMP sated | |
| at 0x00000251 : */ 0x80080000,0x000009ac, | |
| /* | |
| spew_cmd: | |
| MOVE 1, NCR53c7xx_zero, WHEN CMD | |
| at 0x00000253 : */ 0x0a000001,0x00000000, | |
| /* | |
| JUMP sated | |
| at 0x00000255 : */ 0x80080000,0x000009ac, | |
| /* | |
| eat_msgin: | |
| MOVE 1, NCR53c7xx_sink, WHEN MSG_IN | |
| at 0x00000257 : */ 0x0f000001,0x00000000, | |
| /* | |
| JUMP eat_msgin, WHEN MSG_IN | |
| at 0x00000259 : */ 0x870b0000,0x0000095c, | |
| /* | |
| JUMP sated | |
| at 0x0000025b : */ 0x80080000,0x000009ac, | |
| /* | |
| eat_status: | |
| MOVE 1, NCR53c7xx_sink, WHEN STATUS | |
| at 0x0000025d : */ 0x0b000001,0x00000000, | |
| /* | |
| JUMP eat_status, WHEN STATUS | |
| at 0x0000025f : */ 0x830b0000,0x00000974, | |
| /* | |
| JUMP sated | |
| at 0x00000261 : */ 0x80080000,0x000009ac, | |
| /* | |
| eat_datain: | |
| MOVE 1, NCR53c7xx_sink, WHEN DATA_IN | |
| at 0x00000263 : */ 0x09000001,0x00000000, | |
| /* | |
| JUMP eat_datain, WHEN DATA_IN | |
| at 0x00000265 : */ 0x810b0000,0x0000098c, | |
| /* | |
| JUMP sated | |
| at 0x00000267 : */ 0x80080000,0x000009ac, | |
| /* | |
| spew_dataout: | |
| MOVE 1, NCR53c7xx_zero, WHEN DATA_OUT | |
| at 0x00000269 : */ 0x08000001,0x00000000, | |
| /* | |
| sated: | |
| MOVE 1, NCR53c7xx_msg_abort, WHEN MSG_OUT | |
| at 0x0000026b : */ 0x0e000001,0x00000000, | |
| /* | |
| WAIT DISCONNECT | |
| at 0x0000026d : */ 0x48000000,0x00000000, | |
| /* | |
| INT int_norm_aborted | |
| at 0x0000026f : */ 0x98080000,0x02040000, | |
| /* | |
| ; Little patched jump, used to overcome problems with TEMP getting | |
| ; corrupted on memory moves. | |
| jump_temp: | |
| JUMP 0 | |
| at 0x00000271 : */ 0x80080000,0x00000000, | |
| }; | |
| #define A_NCR53c7xx_msg_abort 0x00000000 | |
| static u32 A_NCR53c7xx_msg_abort_used[] __attribute((unused)) = { | |
| 0x0000026c, | |
| }; | |
| #define A_NCR53c7xx_msg_reject 0x00000000 | |
| static u32 A_NCR53c7xx_msg_reject_used[] __attribute((unused)) = { | |
| 0x00000186, | |
| }; | |
| #define A_NCR53c7xx_sink 0x00000000 | |
| static u32 A_NCR53c7xx_sink_used[] __attribute((unused)) = { | |
| 0x00000258, | |
| 0x0000025e, | |
| 0x00000264, | |
| }; | |
| #define A_NCR53c7xx_zero 0x00000000 | |
| static u32 A_NCR53c7xx_zero_used[] __attribute((unused)) = { | |
| 0x00000254, | |
| 0x0000026a, | |
| }; | |
| #define A_NOP_insn 0x00000000 | |
| static u32 A_NOP_insn_used[] __attribute((unused)) = { | |
| 0x00000017, | |
| }; | |
| #define A_addr_dsa 0x00000000 | |
| static u32 A_addr_dsa_used[] __attribute((unused)) = { | |
| 0x0000000f, | |
| 0x00000026, | |
| 0x00000033, | |
| 0x00000040, | |
| 0x00000055, | |
| 0x00000079, | |
| 0x0000008e, | |
| 0x000000bc, | |
| 0x000000d2, | |
| 0x00000130, | |
| 0x000001a5, | |
| 0x000001bb, | |
| 0x000001e3, | |
| }; | |
| #define A_addr_reconnect_dsa_head 0x00000000 | |
| static u32 A_addr_reconnect_dsa_head_used[] __attribute((unused)) = { | |
| 0x000001b7, | |
| }; | |
| #define A_addr_scratch 0x00000000 | |
| static u32 A_addr_scratch_used[] __attribute((unused)) = { | |
| 0x00000002, | |
| 0x00000004, | |
| 0x00000008, | |
| 0x00000020, | |
| 0x00000022, | |
| 0x00000049, | |
| 0x00000060, | |
| 0x0000006a, | |
| 0x00000071, | |
| 0x00000073, | |
| 0x000000ab, | |
| 0x000000b5, | |
| 0x000000c1, | |
| 0x000000cb, | |
| 0x0000012c, | |
| 0x00000142, | |
| 0x00000157, | |
| 0x000001b2, | |
| 0x000001b4, | |
| 0x000001df, | |
| 0x000001f7, | |
| }; | |
| #define A_addr_temp 0x00000000 | |
| static u32 A_addr_temp_used[] __attribute((unused)) = { | |
| }; | |
| #define A_dmode_memory_to_memory 0x00000000 | |
| static u32 A_dmode_memory_to_memory_used[] __attribute((unused)) = { | |
| }; | |
| #define A_dmode_memory_to_ncr 0x00000000 | |
| static u32 A_dmode_memory_to_ncr_used[] __attribute((unused)) = { | |
| }; | |
| #define A_dmode_ncr_to_memory 0x00000000 | |
| static u32 A_dmode_ncr_to_memory_used[] __attribute((unused)) = { | |
| }; | |
| #define A_dsa_check_reselect 0x00000000 | |
| static u32 A_dsa_check_reselect_used[] __attribute((unused)) = { | |
| 0x000001d0, | |
| }; | |
| #define A_dsa_cmdout 0x00000048 | |
| static u32 A_dsa_cmdout_used[] __attribute((unused)) = { | |
| 0x0000009a, | |
| }; | |
| #define A_dsa_cmnd 0x00000038 | |
| static u32 A_dsa_cmnd_used[] __attribute((unused)) = { | |
| }; | |
| #define A_dsa_datain 0x00000054 | |
| static u32 A_dsa_datain_used[] __attribute((unused)) = { | |
| 0x000000c2, | |
| }; | |
| #define A_dsa_dataout 0x00000050 | |
| static u32 A_dsa_dataout_used[] __attribute((unused)) = { | |
| 0x000000ac, | |
| }; | |
| #define A_dsa_end 0x00000070 | |
| static u32 A_dsa_end_used[] __attribute((unused)) = { | |
| }; | |
| #define A_dsa_fields_start 0x00000000 | |
| static u32 A_dsa_fields_start_used[] __attribute((unused)) = { | |
| }; | |
| #define A_dsa_msgin 0x00000058 | |
| static u32 A_dsa_msgin_used[] __attribute((unused)) = { | |
| 0x0000019c, | |
| }; | |
| #define A_dsa_msgout 0x00000040 | |
| static u32 A_dsa_msgout_used[] __attribute((unused)) = { | |
| 0x00000089, | |
| }; | |
| #define A_dsa_msgout_other 0x00000068 | |
| static u32 A_dsa_msgout_other_used[] __attribute((unused)) = { | |
| 0x00000194, | |
| }; | |
| #define A_dsa_next 0x00000030 | |
| static u32 A_dsa_next_used[] __attribute((unused)) = { | |
| 0x00000061, | |
| }; | |
| #define A_dsa_restore_pointers 0x00000000 | |
| static u32 A_dsa_restore_pointers_used[] __attribute((unused)) = { | |
| 0x00000146, | |
| }; | |
| #define A_dsa_save_data_pointer 0x00000000 | |
| static u32 A_dsa_save_data_pointer_used[] __attribute((unused)) = { | |
| 0x00000131, | |
| }; | |
| #define A_dsa_select 0x0000003c | |
| static u32 A_dsa_select_used[] __attribute((unused)) = { | |
| 0x00000082, | |
| }; | |
| #define A_dsa_sscf_710 0x00000000 | |
| static u32 A_dsa_sscf_710_used[] __attribute((unused)) = { | |
| 0x00000007, | |
| }; | |
| #define A_dsa_status 0x00000060 | |
| static u32 A_dsa_status_used[] __attribute((unused)) = { | |
| 0x00000198, | |
| }; | |
| #define A_dsa_temp_addr_array_value 0x00000000 | |
| static u32 A_dsa_temp_addr_array_value_used[] __attribute((unused)) = { | |
| }; | |
| #define A_dsa_temp_addr_dsa_value 0x00000000 | |
| static u32 A_dsa_temp_addr_dsa_value_used[] __attribute((unused)) = { | |
| 0x00000001, | |
| }; | |
| #define A_dsa_temp_addr_new_value 0x00000000 | |
| static u32 A_dsa_temp_addr_new_value_used[] __attribute((unused)) = { | |
| }; | |
| #define A_dsa_temp_addr_next 0x00000000 | |
| static u32 A_dsa_temp_addr_next_used[] __attribute((unused)) = { | |
| 0x0000001c, | |
| 0x0000004f, | |
| }; | |
| #define A_dsa_temp_addr_residual 0x00000000 | |
| static u32 A_dsa_temp_addr_residual_used[] __attribute((unused)) = { | |
| 0x0000002d, | |
| 0x0000003b, | |
| }; | |
| #define A_dsa_temp_addr_saved_pointer 0x00000000 | |
| static u32 A_dsa_temp_addr_saved_pointer_used[] __attribute((unused)) = { | |
| 0x0000002b, | |
| 0x00000037, | |
| }; | |
| #define A_dsa_temp_addr_saved_residual 0x00000000 | |
| static u32 A_dsa_temp_addr_saved_residual_used[] __attribute((unused)) = { | |
| 0x0000002e, | |
| 0x0000003a, | |
| }; | |
| #define A_dsa_temp_lun 0x00000000 | |
| static u32 A_dsa_temp_lun_used[] __attribute((unused)) = { | |
| 0x0000004c, | |
| }; | |
| #define A_dsa_temp_next 0x00000000 | |
| static u32 A_dsa_temp_next_used[] __attribute((unused)) = { | |
| 0x0000001f, | |
| }; | |
| #define A_dsa_temp_sync 0x00000000 | |
| static u32 A_dsa_temp_sync_used[] __attribute((unused)) = { | |
| 0x00000057, | |
| }; | |
| #define A_dsa_temp_target 0x00000000 | |
| static u32 A_dsa_temp_target_used[] __attribute((unused)) = { | |
| 0x00000045, | |
| }; | |
| #define A_emulfly 0x00000000 | |
| static u32 A_emulfly_used[] __attribute((unused)) = { | |
| }; | |
| #define A_int_debug_break 0x03000000 | |
| static u32 A_int_debug_break_used[] __attribute((unused)) = { | |
| 0x0000023c, | |
| }; | |
| #define A_int_debug_panic 0x030b0000 | |
| static u32 A_int_debug_panic_used[] __attribute((unused)) = { | |
| 0x00000209, | |
| 0x00000219, | |
| }; | |
| #define A_int_err_check_condition 0x00030000 | |
| static u32 A_int_err_check_condition_used[] __attribute((unused)) = { | |
| 0x000001a9, | |
| }; | |
| #define A_int_err_no_phase 0x00040000 | |
| static u32 A_int_err_no_phase_used[] __attribute((unused)) = { | |
| }; | |
| #define A_int_err_selected 0x00010000 | |
| static u32 A_int_err_selected_used[] __attribute((unused)) = { | |
| 0x000001ff, | |
| }; | |
| #define A_int_err_unexpected_phase 0x00000000 | |
| static u32 A_int_err_unexpected_phase_used[] __attribute((unused)) = { | |
| 0x00000092, | |
| 0x00000098, | |
| 0x000000a0, | |
| 0x000000d6, | |
| 0x000000da, | |
| 0x000000dc, | |
| 0x000000e4, | |
| 0x000000e8, | |
| 0x000000ea, | |
| 0x000000f2, | |
| 0x000000f6, | |
| 0x000000f8, | |
| 0x000000fa, | |
| 0x00000160, | |
| }; | |
| #define A_int_err_unexpected_reselect 0x00020000 | |
| static u32 A_int_err_unexpected_reselect_used[] __attribute((unused)) = { | |
| 0x000001cd, | |
| }; | |
| #define A_int_msg_1 0x01020000 | |
| static u32 A_int_msg_1_used[] __attribute((unused)) = { | |
| 0x00000114, | |
| 0x00000116, | |
| }; | |
| #define A_int_msg_sdtr 0x01010000 | |
| static u32 A_int_msg_sdtr_used[] __attribute((unused)) = { | |
| 0x00000180, | |
| }; | |
| #define A_int_msg_wdtr 0x01000000 | |
| static u32 A_int_msg_wdtr_used[] __attribute((unused)) = { | |
| 0x00000174, | |
| }; | |
| #define A_int_norm_aborted 0x02040000 | |
| static u32 A_int_norm_aborted_used[] __attribute((unused)) = { | |
| 0x00000270, | |
| }; | |
| #define A_int_norm_command_complete 0x02020000 | |
| static u32 A_int_norm_command_complete_used[] __attribute((unused)) = { | |
| }; | |
| #define A_int_norm_disconnected 0x02030000 | |
| static u32 A_int_norm_disconnected_used[] __attribute((unused)) = { | |
| }; | |
| #define A_int_norm_emulateintfly 0x02060000 | |
| static u32 A_int_norm_emulateintfly_used[] __attribute((unused)) = { | |
| 0x000001a2, | |
| }; | |
| #define A_int_norm_reselect_complete 0x02010000 | |
| static u32 A_int_norm_reselect_complete_used[] __attribute((unused)) = { | |
| }; | |
| #define A_int_norm_reset 0x02050000 | |
| static u32 A_int_norm_reset_used[] __attribute((unused)) = { | |
| }; | |
| #define A_int_norm_select_complete 0x02000000 | |
| static u32 A_int_norm_select_complete_used[] __attribute((unused)) = { | |
| }; | |
| #define A_int_test_1 0x04000000 | |
| static u32 A_int_test_1_used[] __attribute((unused)) = { | |
| 0x0000021e, | |
| }; | |
| #define A_int_test_2 0x04010000 | |
| static u32 A_int_test_2_used[] __attribute((unused)) = { | |
| 0x0000023a, | |
| }; | |
| #define A_int_test_3 0x04020000 | |
| static u32 A_int_test_3_used[] __attribute((unused)) = { | |
| }; | |
| #define A_msg_buf 0x00000000 | |
| static u32 A_msg_buf_used[] __attribute((unused)) = { | |
| 0x00000108, | |
| 0x00000162, | |
| 0x0000016c, | |
| 0x00000172, | |
| 0x00000178, | |
| 0x0000017e, | |
| }; | |
| #define A_reconnect_dsa_head 0x00000000 | |
| static u32 A_reconnect_dsa_head_used[] __attribute((unused)) = { | |
| 0x0000006d, | |
| 0x00000074, | |
| 0x000001b1, | |
| }; | |
| #define A_reselected_identify 0x00000000 | |
| static u32 A_reselected_identify_used[] __attribute((unused)) = { | |
| 0x00000048, | |
| 0x000001af, | |
| }; | |
| #define A_reselected_tag 0x00000000 | |
| static u32 A_reselected_tag_used[] __attribute((unused)) = { | |
| }; | |
| #define A_saved_dsa 0x00000000 | |
| static u32 A_saved_dsa_used[] __attribute((unused)) = { | |
| 0x00000005, | |
| 0x0000000e, | |
| 0x00000023, | |
| 0x00000025, | |
| 0x00000032, | |
| 0x0000003f, | |
| 0x00000054, | |
| 0x0000005f, | |
| 0x00000070, | |
| 0x00000078, | |
| 0x0000008d, | |
| 0x000000aa, | |
| 0x000000bb, | |
| 0x000000c0, | |
| 0x000000d1, | |
| 0x0000012f, | |
| 0x000001a4, | |
| 0x000001b5, | |
| 0x000001ba, | |
| 0x000001e2, | |
| }; | |
| #define A_schedule 0x00000000 | |
| static u32 A_schedule_used[] __attribute((unused)) = { | |
| 0x0000007d, | |
| 0x000001a7, | |
| 0x00000203, | |
| 0x00000244, | |
| }; | |
| #define A_test_dest 0x00000000 | |
| static u32 A_test_dest_used[] __attribute((unused)) = { | |
| 0x0000021c, | |
| }; | |
| #define A_test_src 0x00000000 | |
| static u32 A_test_src_used[] __attribute((unused)) = { | |
| 0x0000021b, | |
| }; | |
| #define Ent_accept_message 0x00000624 | |
| #define Ent_cmdout_cmdout 0x00000264 | |
| #define Ent_command_complete 0x0000065c | |
| #define Ent_command_complete_msgin 0x0000066c | |
| #define Ent_data_transfer 0x0000026c | |
| #define Ent_datain_to_jump 0x00000334 | |
| #define Ent_debug_break 0x000008ec | |
| #define Ent_dsa_code_begin 0x00000000 | |
| #define Ent_dsa_code_check_reselect 0x0000010c | |
| #define Ent_dsa_code_fix_jump 0x00000058 | |
| #define Ent_dsa_code_restore_pointers 0x000000d8 | |
| #define Ent_dsa_code_save_data_pointer 0x000000a4 | |
| #define Ent_dsa_code_template 0x00000000 | |
| #define Ent_dsa_code_template_end 0x00000178 | |
| #define Ent_dsa_schedule 0x00000178 | |
| #define Ent_dsa_zero 0x00000178 | |
| #define Ent_end_data_transfer 0x000002a4 | |
| #define Ent_initiator_abort 0x00000914 | |
| #define Ent_msg_in 0x0000041c | |
| #define Ent_msg_in_restart 0x000003fc | |
| #define Ent_other_in 0x0000038c | |
| #define Ent_other_out 0x00000354 | |
| #define Ent_other_transfer 0x000003c4 | |
| #define Ent_reject_message 0x00000604 | |
| #define Ent_reselected_check_next 0x000006f0 | |
| #define Ent_reselected_ok 0x00000798 | |
| #define Ent_respond_message 0x0000063c | |
| #define Ent_select 0x000001f8 | |
| #define Ent_select_msgout 0x00000218 | |
| #define Ent_target_abort 0x000008f4 | |
| #define Ent_test_1 0x00000868 | |
| #define Ent_test_2 0x0000087c | |
| #define Ent_test_2_msgout 0x0000089c | |
| #define Ent_wait_reselect 0x000006a8 | |
| static u32 LABELPATCHES[] __attribute((unused)) = { | |
| 0x00000011, | |
| 0x0000001a, | |
| 0x0000001d, | |
| 0x00000028, | |
| 0x0000002a, | |
| 0x00000035, | |
| 0x00000038, | |
| 0x00000042, | |
| 0x00000050, | |
| 0x00000052, | |
| 0x0000006b, | |
| 0x00000083, | |
| 0x00000085, | |
| 0x00000090, | |
| 0x00000094, | |
| 0x00000096, | |
| 0x0000009c, | |
| 0x0000009e, | |
| 0x000000a2, | |
| 0x000000a4, | |
| 0x000000a6, | |
| 0x000000a8, | |
| 0x000000b6, | |
| 0x000000b9, | |
| 0x000000cc, | |
| 0x000000cf, | |
| 0x000000d8, | |
| 0x000000de, | |
| 0x000000e0, | |
| 0x000000e6, | |
| 0x000000ec, | |
| 0x000000ee, | |
| 0x000000f4, | |
| 0x000000fc, | |
| 0x000000fe, | |
| 0x0000010a, | |
| 0x0000010c, | |
| 0x0000010e, | |
| 0x00000110, | |
| 0x00000112, | |
| 0x00000118, | |
| 0x0000011a, | |
| 0x0000012d, | |
| 0x00000143, | |
| 0x00000158, | |
| 0x0000015c, | |
| 0x00000164, | |
| 0x00000166, | |
| 0x00000168, | |
| 0x0000016e, | |
| 0x0000017a, | |
| 0x000001ab, | |
| 0x000001b8, | |
| 0x000001bf, | |
| 0x000001c3, | |
| 0x000001c7, | |
| 0x000001cb, | |
| 0x000001e0, | |
| 0x000001f8, | |
| 0x00000207, | |
| 0x0000020f, | |
| 0x00000213, | |
| 0x00000217, | |
| 0x00000224, | |
| 0x00000226, | |
| 0x00000248, | |
| 0x0000024a, | |
| 0x0000024c, | |
| 0x0000024e, | |
| 0x00000250, | |
| 0x00000252, | |
| 0x00000256, | |
| 0x0000025a, | |
| 0x0000025c, | |
| 0x00000260, | |
| 0x00000262, | |
| 0x00000266, | |
| 0x00000268, | |
| }; | |
| static struct { | |
| u32 offset; | |
| void *address; | |
| } EXTERNAL_PATCHES[] __attribute((unused)) = { | |
| }; | |
| static u32 INSTRUCTIONS __attribute((unused)) = 290; | |
| static u32 PATCHES __attribute((unused)) = 78; | |
| static u32 EXTERNAL_PATCHES_LEN __attribute((unused)) = 0; |