/* $OpenBSD: aic6360var.h,v 1.11 2024/09/04 07:54:52 mglocker Exp $ */ /* $NetBSD: aic6360.c,v 1.52 1996/12/10 21:27:51 thorpej Exp $ */ /* * Copyright (c) 1994, 1995, 1996 Charles Hannum. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Charles M. Hannum. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * Copyright (c) 1994 Jarle Greipsland * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Acknowledgements: Many of the algorithms used in this driver are * inspired by the work of Julian Elischer (julian@tfs.com) and * Charles Hannum (mycroft@duality.gnu.ai.mit.edu). Thanks a million! */ #define AIC_NPORTS 0x20 /* I/O port space used */ typedef u_long physaddr; typedef u_long physlen; #ifdef notyet struct aic_dma_seg { physaddr seg_addr; physlen seg_len; }; #define AIC_NSEG 16 #endif /* * ACB. Holds additional information for each SCSI command Comments: We * need a separate scsi command block because we may need to overwrite it * with a request sense command. Basically, we refrain from fiddling with * the scsi_xfer struct (except do the expected updating of return values). * We'll generally update: xs->{flags,resid,error,sense,status} and * occasionally xs->retries. */ struct aic_acb { struct scsi_generic scsi_cmd; int scsi_cmd_length; u_char *data_addr; /* Saved data pointer */ int data_length; /* Residue */ u_char target_stat; /* SCSI status byte */ #ifdef notdef struct aic_dma_seg dma[AIC_NSEG]; /* Physical addresses+len */ #endif TAILQ_ENTRY(aic_acb) chain; struct scsi_xfer *xs; /* SCSI xfer ctrl block from above */ int flags; #define ACB_ALLOC 0x01 #define ACB_NEXUS 0x02 #define ACB_SENSE 0x04 #define ACB_ABORT 0x40 #define ACB_RESET 0x80 int timeout; }; /* * Some info about each (possible) target on the SCSI bus. This should * probably have been a "per target+lunit" structure, but we'll leave it at * this for now. */ struct aic_tinfo { int cmds; /* #commands processed */ int dconns; /* #disconnects */ int touts; /* #timeouts */ int perrs; /* #parity errors */ int senses; /* #request sense commands sent */ ushort lubusy; /* What local units/subr. are busy? */ u_char flags; #define DO_SYNC 0x01 /* (Re)Negotiate synchronous options */ #define DO_WIDE 0x02 /* (Re)Negotiate wide options */ u_char period; /* Period suggestion */ u_char offset; /* Offset suggestion */ u_char width; /* Width suggestion */ }; struct aic_softc { struct device sc_dev; void *sc_ih; bus_space_tag_t sc_iot; bus_space_handle_t sc_ioh; int sc_irq, sc_drq; TAILQ_HEAD(, aic_acb) free_list, ready_list, nexus_list; struct aic_acb *sc_nexus; /* current command */ struct aic_acb sc_acb[8]; struct aic_tinfo sc_tinfo[8]; struct mutex sc_acb_mtx; struct scsi_iopool sc_iopool; /* Data about the current nexus (updated for every cmd switch) */ u_char *sc_dp; /* Current data pointer */ size_t sc_dleft; /* Data bytes left to transfer */ u_char *sc_cp; /* Current command pointer */ size_t sc_cleft; /* Command bytes left to transfer */ /* Adapter state */ u_char sc_phase; /* Current bus phase */ u_char sc_prevphase; /* Previous bus phase */ u_char sc_state; /* State applicable to the adapter */ #define AIC_INIT 0 #define AIC_IDLE 1 #define AIC_SELECTING 2 /* SCSI command is arbiting */ #define AIC_RESELECTED 3 /* Has been reselected */ #define AIC_CONNECTED 4 /* Actively using the SCSI bus */ #define AIC_DISCONNECT 5 /* MSG_DISCONNECT received */ #define AIC_CMDCOMPLETE 6 /* MSG_CMDCOMPLETE received */ #define AIC_CLEANING 7 u_char sc_flags; #define AIC_DROP_MSGIN 0x01 /* Discard all msgs (parity err detected) */ #define AIC_ABORTING 0x02 /* Bailing out */ #define AIC_DOINGDMA 0x04 /* The FIFO data path is active! */ u_char sc_selid; /* Reselection ID */ /* Message stuff */ u_char sc_msgpriq; /* Messages we want to send */ u_char sc_msgoutq; /* Messages sent during last MESSAGE OUT */ u_char sc_lastmsg; /* Message last transmitted */ u_char sc_currmsg; /* Message currently ready to transmit */ #define SEND_DEV_RESET 0x01 #define SEND_PARITY_ERROR 0x02 #define SEND_INIT_DET_ERR 0x04 #define SEND_REJECT 0x08 #define SEND_IDENTIFY 0x10 #define SEND_ABORT 0x20 #define SEND_SDTR 0x40 #define SEND_WDTR 0x80 #define AIC_MAX_MSG_LEN 8 u_char sc_omess[AIC_MAX_MSG_LEN]; u_char *sc_omp; /* Outgoing message pointer */ u_char sc_imess[AIC_MAX_MSG_LEN]; u_char *sc_imp; /* Incoming message pointer */ /* Hardware stuff */ int sc_initiator; /* Our scsi id */ int sc_freq; /* Clock frequency in MHz */ int sc_minsync; /* Minimum sync period / 4 */ int sc_maxsync; /* Maximum sync period / 4 */ }; #if AIC_DEBUG #define AIC_SHOWACBS 0x01 #define AIC_SHOWINTS 0x02 #define AIC_SHOWCMDS 0x04 #define AIC_SHOWMISC 0x08 #define AIC_SHOWTRACE 0x10 #define AIC_SHOWSTART 0x20 #define AIC_DOBREAK 0x40 #define AIC_PRINT(b, s) do {if ((aic_debug & (b)) != 0) printf s;} while (0) #define AIC_BREAK() \ do { if ((aic_debug & AIC_DOBREAK) != 0) db_enter(); } while (0) #define AIC_ASSERT(x) \ do { \ if (!(x)) { \ printf("%s at line %d: assertion failed\n", \ sc->sc_dev.dv_xname, __LINE__); \ db_enter(); \ } \ } while (0) #else #define AIC_PRINT(b, s) #define AIC_BREAK() #define AIC_ASSERT(x) #endif #define AIC_ACBS(s) AIC_PRINT(AIC_SHOWACBS, s) #define AIC_INTS(s) AIC_PRINT(AIC_SHOWINTS, s) #define AIC_CMDS(s) AIC_PRINT(AIC_SHOWCMDS, s) #define AIC_MISC(s) AIC_PRINT(AIC_SHOWMISC, s) #define AIC_TRACE(s) AIC_PRINT(AIC_SHOWTRACE, s) #define AIC_START(s) AIC_PRINT(AIC_SHOWSTART, s) void aicattach(struct aic_softc *); int aic_detach(struct device *, int); int aicintr(void *); int aic_find(bus_space_tag_t, bus_space_handle_t);
