diff options
Diffstat (limited to 'sys/arch/luna88k/dev/mb89352var.h')
| -rw-r--r-- | sys/arch/luna88k/dev/mb89352var.h | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/sys/arch/luna88k/dev/mb89352var.h b/sys/arch/luna88k/dev/mb89352var.h new file mode 100644 index 00000000000..e77f0649a05 --- /dev/null +++ b/sys/arch/luna88k/dev/mb89352var.h @@ -0,0 +1,214 @@ +/* $OpenBSD: mb89352var.h,v 1.1 2004/04/21 15:23:55 aoyama Exp $ */ +/* $NetBSD: mb89352var.h,v 1.6 2003/08/02 12:48:09 tsutsui Exp $ */ +/* NecBSD: mb89352var.h,v 1.4 1998/03/14 07:31:22 kmatsuda Exp */ + +/*- + * Copyright (c) 1996,97,98,99 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. + * 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. + */ +/* + * [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. Basicly, 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 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 spc_dma_seg dma[SPC_NSEG]; /* Physical addresses+len */ +#endif + + TAILQ_ENTRY(spc_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 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 */ + u_char period; /* Period suggestion */ + u_char offset; /* Offset suggestion */ + u_char width; /* Width suggestion */ +}; + +struct spc_softc { + struct device sc_dev; + + bus_space_tag_t sc_iot; + bus_space_handle_t sc_ioh; + + struct scsi_link sc_link; /* prototype for subdevs */ + + 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) */ + 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 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 + u_char 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! */ + 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 SPC_MAX_MSG_LEN 8 + u_char sc_omess[SPC_MAX_MSG_LEN]; + u_char *sc_omp; /* Outgoing message pointer */ + u_char sc_imess[SPC_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 */ + + /* 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 (0) +#define SPC_BREAK() do {if ((spc_debug & SPC_DOBREAK) != 0) Debugger();} while (0) +#define SPC_ASSERT(x) do {if (x) {} else {printf("%s at line %d: assertion failed\n", sc->sc_dev.dv_xname, __LINE__); Debugger();}} while (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 *, struct scsi_adapter *); +int spc_intr(void *); +int spc_find(bus_space_tag_t, bus_space_handle_t, int); +void spc_init(struct spc_softc *); +void spc_sched(struct spc_softc *); +int spc_scsi_cmd(struct scsi_xfer *); +void spc_minphys(struct buf *); +#endif /* _MB89352VAR_H_ */ |