diff options
Diffstat (limited to 'sys/arch/sparc/dev/espvar.h')
| -rw-r--r-- | sys/arch/sparc/dev/espvar.h | 298 |
1 files changed, 106 insertions, 192 deletions
diff --git a/sys/arch/sparc/dev/espvar.h b/sys/arch/sparc/dev/espvar.h index 71178098b7a..cc9b42e248d 100644 --- a/sys/arch/sparc/dev/espvar.h +++ b/sys/arch/sparc/dev/espvar.h @@ -1,7 +1,9 @@ -/* $NetBSD: espvar.h,v 1.5 1995/08/18 10:09:57 pk Exp $ */ +/* $NetBSD: espvar.h,v 1.3 1994/11/20 20:52:12 deraadt Exp $ */ /* * Copyright (c) 1994 Peter Galbavy. All rights reserved. + * Copyright (c) 1995 Theo de Raadt. All rights reserved. + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -12,7 +14,8 @@ * 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 Peter Galbavy. + * This product includes software developed by Peter Galbavy and + * Theo de Raadt. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * @@ -28,17 +31,10 @@ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#define ESP_SYNC_REQ_ACK_OFS 0 - -#define ESP_DEBUG 0 - -#define FREQTOCCF(freq) (((freq + 4) / 5)) -#define ESP_DEF_TIMEOUT 153 - -/* esp revisions */ -#define ESP100 0x01 -#define ESP100A 0x02 -#define ESP200 0x03 +/* esp chip revisions */ +#define ESP100 0 +#define ESP100A 1 +#define ESP200 2 /* Grabbed from Julians SCSI aha-drivers */ #ifdef DDB @@ -47,39 +43,36 @@ int Debugger(); #define Debugger() panic("should call debugger here (esp.c)") #endif DDB -typedef caddr_t physaddr; - -struct esp_dma_seg { - physaddr addr; - long len; -}; +#define ESP_MSGLEN_MAX 8 /* maximum msglen we handle */ +#define ESP_SYNC_REQOFF 0 /* offset we request */ +#define ESP_SYNC_MAXOFF 15 /* maximum supportable sync offset */ +#if ESP_SYNC_REQOFF > ESP_SYNC_MAXOFF +#warning requested sync offset is higher than maximum possible sync offset. +#endif -extern int delaycount; -#define FUDGE(X) ((X)>>1) /* get 1 ms spincount */ -#define MINIFUDGE(X) ((X)>>4) /* get (approx) 125us spincount */ -#define NUM_CONCURRENT 7 /* Only one per target for now */ +#define FREQTOCCF(freq) (((freq + 4) / 5)) /* - * ECB. 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. + * ECB. 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 ecb { TAILQ_ENTRY(ecb) chain; - struct scsi_xfer *xs; /* SCSI xfer ctrl block from above */ - int flags; /* Status */ + struct scsi_xfer *xs; /* SCSI xfer ctrl block from above */ + int flags; /* Status */ #define ECB_FREE 0x00 #define ECB_ACTIVE 0x01 #define ECB_DONE 0x04 #define ECB_CHKSENSE 0x08 - struct scsi_generic cmd; /* SCSI command block */ - int clen; - char *daddr; /* Saved data pointer */ - int dleft; /* Residue */ - u_char stat; /* SCSI status byte */ + struct scsi_generic cmd; /* SCSI command block */ + int clen; + caddr_t daddr; /* Saved data pointer */ + int dleft; /* Residue */ + int stat; /* SCSI status byte */ }; /* @@ -88,35 +81,32 @@ struct ecb { * this for now. Is there a way to reliably hook it up to sc->fordriver?? */ struct esp_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 NEED_TO_RESET 0x01 /* Should send a BUS_DEV_RESET */ -#define DO_NEGOTIATE 0x02 /* (Re)Negotiate synchronous options */ -#define TARGET_BUSY 0x04 /* Target is busy, i.e. cmd in progress */ -#define T_XXX 0x08 /* Target is XXX */ - u_char period; /* Period suggestion */ - u_char offset; /* Offset suggestion */ -} tinfo_t; + int cmds; /* #commands processed */ + int dconns; /* #disconnects */ + int touts; /* #timeouts */ + int perrs; /* #parity errors */ + int senses; /* #request sense commands sent */ + u_char lubusy; /* What luns are busy? */ + u_char flags; +#define DO_NEGOTIATE 0x01 /* (re)negotiate synchronous options */ +#define TARGET_BUSY 0x02 /* target is busy, i.e. cmd in progress */ + u_char period; /* sync period */ + u_char synctp; /* sync period translated for SYNCTP */ + u_char offset; /* sync offset */ +}; /* Register a linenumber (for debugging) */ #define LOGLINE(p) -#define ESP_SHOWECBS 0x01 -#define ESP_SHOWINTS 0x02 -#define ESP_SHOWCMDS 0x04 -#define ESP_SHOWMISC 0x08 -#define ESP_SHOWTRAC 0x10 -#define ESP_SHOWSTART 0x20 -#define ESP_SHOWPHASE 0x40 -#define ESP_SHOWDMA 0x80 +#define ESP_SHOWECBS 0x01 +#define ESP_SHOWINTS 0x02 +#define ESP_SHOWCMDS 0x04 +#define ESP_SHOWMISC 0x08 +#define ESP_SHOWTRAC 0x10 +#define ESP_SHOWSTART 0x20 +#define ESP_SHOWPHASE 0x40 -#ifdef ESP_DEBUG -extern int esp_debug; +#if ESP_DEBUG #define ESP_ECBS(str) do {if (esp_debug & ESP_SHOWECBS) printf str;} while (0) #define ESP_MISC(str) do {if (esp_debug & ESP_SHOWMISC) printf str;} while (0) #define ESP_INTS(str) do {if (esp_debug & ESP_SHOWINTS) printf str;} while (0) @@ -124,7 +114,6 @@ extern int esp_debug; #define ESP_CMDS(str) do {if (esp_debug & ESP_SHOWCMDS) printf str;} while (0) #define ESP_START(str) do {if (esp_debug & ESP_SHOWSTART) printf str;}while (0) #define ESP_PHASE(str) do {if (esp_debug & ESP_SHOWPHASE) printf str;}while (0) -#define ESP_DMA(str) do {if (esp_debug & ESP_SHOWDMA) printf str;}while (0) #else #define ESP_ECBS(str) #define ESP_MISC(str) @@ -133,86 +122,85 @@ extern int esp_debug; #define ESP_CMDS(str) #define ESP_START(str) #define ESP_PHASE(str) -#define ESP_DMA(str) #endif -#define ESP_MAX_MSG_LEN 8 - struct esp_softc { - struct device sc_dev; /* us as a device */ - struct sbusdev sc_sd; /* sbus device */ - struct intrhand sc_ih; /* intr handler */ - struct evcnt sc_intrcnt; /* intr count */ - struct scsi_link sc_link; /* scsi lint struct */ - volatile caddr_t sc_reg; /* the registers */ - struct dma_softc *sc_dma; /* pointer to my dma */ + struct device sc_dev; + struct sbusdev sc_sd; /* sbus device */ + struct intrhand sc_ih; /* intr handler */ + struct evcnt sc_intrcnt; /* intr count */ + struct scsi_link sc_link; /* scsi lint struct */ + struct espregs *sc_regs; /* the registers */ + struct dma_softc *sc_dma; /* corresponding DMA ctrlr */ /* register defaults */ - u_char sc_cfg1; /* Config 1 */ - u_char sc_cfg2; /* Config 2, not ESP100 */ - u_char sc_cfg3; /* Config 3, only ESP200 */ - u_char sc_ccf; /* Clock Conversion */ + u_char sc_cfg1; /* config 1 */ + u_char sc_cfg2; /* config 2, only ESP100A/200 */ + u_char sc_cfg3; /* config 3, only ESP200 */ + u_char sc_ccf; /* clock conversion */ u_char sc_timeout; - /* register copies, see espreadregs() */ - u_char sc_espintr; + u_char sc_espintr; /* copies of registers */ u_char sc_espstat; u_char sc_espstep; u_char sc_espfflags; + struct bootpath *sc_bp; /* current boot path component */ + /* Lists of command blocks */ - TAILQ_HEAD(ecb_list, ecb) free_list, - ready_list, - nexus_list; + TAILQ_HEAD(ecb_list, ecb) free_list, ready_list, nexus_list; - struct ecb *sc_nexus; /* current command */ - struct ecb sc_ecb[8]; /* one per target */ - struct esp_tinfo sc_tinfo[8]; + struct ecb *sc_nexus; /* current command */ + struct ecb sc_ecb[8]; /* one per target */ + struct esp_tinfo sc_tinfo[8]; - /* Data about the current nexus (updated for every cmd switch) */ - caddr_t sc_dp; /* Current data pointer */ - ssize_t sc_dleft; /* Data left to transfer */ + /* data about the current nexus (updated for every cmd switch) */ + caddr_t sc_dp; /* current data pointer */ + size_t sc_dleft; /* data left to transfer */ - /* Adapter state */ - int sc_phase; /* Copy of what bus phase we are in */ - int sc_prevphase; /* Copy of what bus phase we were in */ - u_char sc_state; /* State applicable to the adapter */ + /* adapter state */ + int sc_phase; /* bus phase (based on sc_espstat) */ + u_char sc_state; /* state applicable to the adapter */ u_char sc_flags; u_char sc_selid; - /* Message stuff */ - char sc_msgpriq; /* One or more messages to send (encoded) */ - char sc_msgout; /* What message is on its way out? */ - char sc_omess[ESP_MAX_MSG_LEN]; - caddr_t sc_omp; /* Message pointer (for multibyte messages) */ + /* message stuff */ + u_char sc_msgpriq; /* messages to send (see SEND_* below) */ + u_char sc_msgout; /* message that is on it's way out */ + u_char sc_omess[ESP_MSGLEN_MAX]; + u_char *sc_omp; /* message pointer (for multibyte messages) */ size_t sc_omlen; - char sc_imess[ESP_MAX_MSG_LEN + 1]; - caddr_t sc_imp; /* Message pointer (for multibyte messages) */ + u_char sc_imess[ESP_MSGLEN_MAX + 1]; + u_char *sc_imp; /* message pointer (for multibyte messages) */ size_t sc_imlen; /* hardware/openprom stuff */ - int sc_node; /* PROM node ID */ - int sc_freq; /* Freq in HZ */ - int sc_pri; /* SBUS priority */ - int sc_id; /* our scsi id */ - int sc_rev; /* esp revision */ - int sc_minsync; /* minimum sync period / 4 */ + int sc_node; /* PROM node ID */ + int sc_freq; /* Freq in HZ */ + int sc_pri; /* SBUS priority */ + int sc_id; /* our scsi id */ + int sc_rev; /* esp revision */ + int sc_minsync; /* minimum sync period / 4 */ }; /* values for sc_state */ -#define ESP_IDLE 0x01 /* waiting for something to do */ -#define ESP_TMP_UNAVAIL 0x02 /* Don't accept SCSI commands */ -#define ESP_SELECTING 0x03 /* SCSI command is arbiting */ -#define ESP_RESELECTED 0x04 /* Has been reselected */ -#define ESP_HASNEXUS 0x05 /* Actively using the SCSI bus */ -#define ESP_CLEANING 0x06 +#define ESPS_IDLE 0x01 /* waiting for something to do */ +#define ESPS_EXPECTDISC 0x02 /* a disconnect is going to happen */ +#define ESPS_SELECTING 0x03 /* SCSI command is arbiting */ +#define ESPS_RESELECTED 0x04 /* has been reselected */ +#define ESPS_NEXUS 0x05 /* actively using the SCSI bus */ +#define ESPS_DOINGDMA 0x06 /* doing a DMA transaction */ +#define ESPS_DOINGMSGOUT 0x07 /* message-out in progress */ +#define ESPS_DOINGMSGIN 0x08 /* message-in in progress */ +#define ESPS_DOINGSTATUS 0x09 /* status-in in progress */ +#define ESPS_SELECTSTOP 0x0a /* sent first byte of message.. */ +#define ESPS_MULTMSGEND 0x0b /* done sending multibyte msg */ /* values for sc_flags */ -#define ESP_DROP_MSGI 0x01 /* Discard all msgs (parity err detected) */ -#define ESP_DOINGDMA 0x02 /* The FIFO data path is active! */ -#define ESP_BUSFREE_OK 0x04 /* Bus free phase is OK. */ -#define ESP_SYNCHNEGO 0x08 /* Synch negotiation in progress. */ -#define ESP_BLOCKED 0x10 /* Don't schedule new scsi bus operations */ +#define ESPF_DROP_MSGI 0x01 /* Discard all msgs (parity err detected) */ +#define ESPF_MAYDISCON 0x02 /* disconnection allowed */ +#define ESPF_DONE 0x04 /* finished transaction */ +#define ESPF_SYNCHNEGO 0x08 /* Synch negotiation in progress. */ /* values for sc_msgout */ #define SEND_DEV_RESET 0x01 @@ -223,61 +211,14 @@ struct esp_softc { #define SEND_IDENTIFY 0x20 #define SEND_SDTR 0x40 -/* - * Generic SCSI messages. For now we reject most of them. - */ -/* Messages (1 byte) */ /* I/T M(andatory) or (O)ptional */ -#define MSG_CMDCOMPLETE 0x00 /* M/M */ -#define MSG_EXTENDED 0x01 /* O/O */ -#define MSG_SAVEDATAPOINTER 0x02 /* O/O */ -#define MSG_RESTOREPOINTERS 0x03 /* O/O */ -#define MSG_DISCONNECT 0x04 /* O/O */ -#define MSG_INITIATOR_DET_ERR 0x05 /* M/M */ -#define MSG_ABORT 0x06 /* O/M */ -#define MSG_MESSAGE_REJECT 0x07 /* M/M */ -#define MSG_NOOP 0x08 /* M/M */ -#define MSG_PARITY_ERR 0x09 /* M/M */ -#define MSG_LINK_CMD_COMPLETE 0x0a /* O/O */ -#define MSG_LINK_CMD_COMPLETEF 0x0b /* O/O */ -#define MSG_BUS_DEV_RESET 0x0c /* O/M */ -#define MSG_ABORT_TAG 0x0d /* O/O */ -#define MSG_CLEAR_QUEUE 0x0e /* O/O */ -#define MSG_INIT_RECOVERY 0x0f /* O/O */ -#define MSG_REL_RECOVERY 0x10 /* O/O */ -#define MSG_TERM_IO_PROC 0x11 /* O/O */ - -/* Messages (2 byte) */ -#define MSG_SIMPLE_Q_TAG 0x20 /* O/O */ -#define MSG_HEAD_OF_Q_TAG 0x21 /* O/O */ -#define MSG_ORDERED_Q_TAG 0x22 /* O/O */ -#define MSG_IGN_WIDE_RESIDUE 0x23 /* O/O */ - -/* Identify message */ -#define ESP_MSG_IDENTIFY(lun) (0x80|(lun & 0x7)) /* XXX 0xc0=selection on */ -#define ESP_MSG_ISIDENT(m) ((m) & 0x80) - -/* Extended messages (opcode) */ -#define MSG_EXT_SDTR 0x01 +#define ST_MASK 0x3e /* bits 0, 6, and 7 are reserved */ -/* SCSI Status codes */ -#define ST_GOOD 0x00 -#define ST_CHKCOND 0x02 -#define ST_CONDMET 0x04 -#define ST_BUSY 0x08 -#define ST_INTERMED 0x10 -#define ST_INTERMED_CONDMET 0x14 -#define ST_RESERVATION_CONFLICT 0x18 -#define ST_CMD_TERM 0x22 -#define ST_QUEUE_FULL 0x28 - -#define ST_MASK 0x3e /* bit 0,6,7 is reserved */ - -/* phase bits */ +/* physical phase bits */ #define IOI 0x01 #define CDI 0x02 #define MSGI 0x04 -/* Information transfer phases */ +/* values for sc_phase (where information transfer happens) */ #define DATA_OUT_PHASE (0) #define DATA_IN_PHASE (IOI) #define COMMAND_PHASE (CDI) @@ -287,32 +228,5 @@ struct esp_softc { #define PHASE_MASK (MSGI|CDI|IOI) -/* Some pseudo phases for getphase()*/ -#define BUSFREE_PHASE 0x100 /* Re/Selection no longer valid */ -#define INVALID_PHASE 0x101 /* Re/Selection valid, but no REQ yet */ -#define PSEUDO_PHASE 0x100 /* "pseudo" bit */ - -#if ESP_DEBUG > 1 -#define ESPCMD(sc, cmd) printf("cmd:0x%02x ", sc->sc_reg[ESP_CMD] = cmd) -#else -#define ESPCMD(sc, cmd) sc->sc_reg[ESP_CMD] = cmd -#endif - -#define SAME_ESP(sc, bp, ca) \ - ((bp->val[0] == ca->ca_slot && bp->val[1] == ca->ca_offset) || \ - (bp->val[0] == -1 && bp->val[1] == sc->sc_dev.dv_unit)) - #define TARGETNAME(ecb) \ - ((struct device *)ecb->xs->sc_link->adapter_softc)->dv_xname - -/* DMA macros for ESP */ -#define DMA_ENINTR(r) ((r->enintr)(r)) -#define DMA_ISINTR(r) ((r->isintr)(r)) -#define DMA_RESET(r) ((r->reset)(r)) -#define DMA_START(a, b, c, d) ((a->start)(a, b, c, d)) -#define DMA_INTR(r) ((r->intr)(r)) - -#define DMA_DRAIN(sc) if (sc->sc_rev < DMAREV_2) { \ - DMACSR(sc) |= D_DRAIN; \ - DMAWAIT1(sc); \ - } + ((struct device *)(ecb)->xs->sc_link->adapter_softc)->dv_xname |