/* $NetBSD: mb89352var.h,v 1.16 2022/01/01 21:07:14 andvar Exp $ */ /* NecBSD: mb89352var.h,v 1.4 1998/03/14 07:31:22 kmatsuda Exp */ /*- * Copyright (c) 1996-1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum, Masaru Oki and Kouichi Matsuda. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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. * * 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. */ /* * [NetBSD for NEC PC-98 series] * Copyright (c) 1996, 1997, 1998 * NetBSD/pc98 porting staff. All rights reserved. * Copyright (c) 1996, 1997, 1998 * Kouich Matsuda. All rights reserved. */ #ifndef _MB89352VAR_H_ #define _MB89352VAR_H_ /* * 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 spc_acb { struct scsipi_generic scsipi_cmd; int scsipi_cmd_length; uint8_t *data_addr; /* Saved data pointer */ int data_length; /* Residue */ uint8_t target_stat; /* SCSI status byte */ #ifdef notdef struct spc_dma_seg dma[SPC_NSEG]; /* Physical addresses+len */ #endif TAILQ_ENTRY(spc_acb) chain; struct scsipi_xfer *xs; /* SCSI xfer ctrl block from above */ u_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 spc_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 */ uint8_t period; /* Period suggestion */ uint8_t offset; /* Offset suggestion */ uint8_t width; /* Width suggestion */ }; struct spc_softc { device_t sc_dev; bus_space_tag_t sc_iot; bus_space_handle_t sc_ioh; struct scsipi_channel sc_channel; /* prototype for subdevs */ struct scsipi_adapter sc_adapter; TAILQ_HEAD(, spc_acb) free_list, ready_list, nexus_list; struct spc_acb *sc_nexus; /* current command */ struct spc_acb sc_acb[8]; struct spc_tinfo sc_tinfo[8]; /* Data about the current nexus (updated for every cmd switch) */ uint8_t *sc_dp; /* Current data pointer */ size_t sc_dleft; /* Data bytes left to transfer */ uint8_t *sc_cp; /* Current command pointer */ size_t sc_cleft; /* Command bytes left to transfer */ /* Adapter state */ uint8_t sc_phase; /* Current bus phase */ uint8_t sc_prevphase; /* Previous bus phase */ uint8_t sc_state; /* State applicable to the adapter */ #define SPC_INIT 0 #define SPC_IDLE 1 #define SPC_SELECTING 2 /* SCSI command is arbiting */ #define SPC_RESELECTED 3 /* Has been reselected */ #define SPC_CONNECTED 4 /* Actively using the SCSI bus */ #define SPC_DISCONNECT 5 /* MSG_DISCONNECT received */ #define SPC_CMDCOMPLETE 6 /* MSG_CMDCOMPLETE received */ #define SPC_CLEANING 7 uint8_t sc_flags; #define SPC_DROP_MSGIN 0x01 /* Discard all msgs (parity err detected) */ #define SPC_ABORTING 0x02 /* Bailing out */ #define SPC_DOINGDMA 0x04 /* doing DMA */ #define SPC_INACTIVE 0x80 /* The FIFO data path is active! */ uint8_t sc_selid; /* Reselection ID */ device_t sc_child;/* Our child */ /* Message stuff */ uint8_t sc_msgpriq; /* Messages we want to send */ uint8_t sc_msgoutq; /* Messages sent during last MESSAGE OUT */ uint8_t sc_lastmsg; /* Message last transmitted */ uint8_t 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 SPC_MAX_MSG_LEN 8 uint8_t sc_omess[SPC_MAX_MSG_LEN]; uint8_t *sc_omp; /* Outgoing message pointer */ uint8_t sc_imess[SPC_MAX_MSG_LEN]; uint8_t *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 */ /* DMA function set from MD code */ void (*sc_dma_start)(struct spc_softc *, void *, size_t, int); void (*sc_dma_done)(struct spc_softc *); }; #if SPC_DEBUG #define SPC_SHOWACBS 0x01 #define SPC_SHOWINTS 0x02 #define SPC_SHOWCMDS 0x04 #define SPC_SHOWMISC 0x08 #define SPC_SHOWTRACE 0x10 #define SPC_SHOWSTART 0x20 #define SPC_DOBREAK 0x40 extern int spc_debug; /* SPC_SHOWSTART|SPC_SHOWMISC|SPC_SHOWTRACE; */ #define SPC_PRINT(b, s) \ do { \ if ((spc_debug & (b)) != 0) \ printf s; \ } while (/* CONSTCOND */ 0) #define SPC_BREAK() \ do { \ if ((spc_debug & SPC_DOBREAK) != 0) \ Debugger(); \ } while (/* CONSTCOND */ 0) #define SPC_ASSERT(x) \ do { \ if (x) { \ ; \ } else { \ printf("%s at line %d: assertion failed\n", \ device_xname(sc->sc_dev), __LINE__); \ Debugger(); \ } \ } while (/* CONSTCOND */ 0) #else #define SPC_PRINT(b, s) #define SPC_BREAK() #define SPC_ASSERT(x) #endif #define SPC_ACBS(s) SPC_PRINT(SPC_SHOWACBS, s) #define SPC_INTS(s) SPC_PRINT(SPC_SHOWINTS, s) #define SPC_CMDS(s) SPC_PRINT(SPC_SHOWCMDS, s) #define SPC_MISC(s) SPC_PRINT(SPC_SHOWMISC, s) #define SPC_TRACE(s) SPC_PRINT(SPC_SHOWTRACE, s) #define SPC_START(s) SPC_PRINT(SPC_SHOWSTART, s) void spc_attach(struct spc_softc *); void spc_childdet(device_t, device_t); int spc_detach(device_t, int); int spc_intr(void *); int spc_find(bus_space_tag_t, bus_space_handle_t, int); void spc_init(struct spc_softc *, int); void spc_sched(struct spc_softc *); #endif /* _MB89352VAR_H_ */
