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Diffstat (limited to 'sys/alpha/tc/espvar.h')
| -rw-r--r-- | sys/alpha/tc/espvar.h | 329 |
1 files changed, 0 insertions, 329 deletions
diff --git a/sys/alpha/tc/espvar.h b/sys/alpha/tc/espvar.h deleted file mode 100644 index 1efbbc0..0000000 --- a/sys/alpha/tc/espvar.h +++ /dev/null @@ -1,329 +0,0 @@ -/* $FreeBSD$ */ -/* $NetBSD: espvar.h,v 1.3.4.1 1996/09/10 17:28:18 cgd Exp $ */ - -/* - * Copyright (c) 1994 Peter Galbavy. 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 Peter Galbavy. - * 4. 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. - */ - -/*#define ESP_DEBUG 0*/ - -#define FREQTOCCF(freq) (((freq + 4) / 5)) - -/* esp revisions */ -#define ESP100 0x01 -#define ESP100A 0x02 -#define ESP200 0x03 -#define NCR53C94 0x04 - -/* - * 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. - */ -struct ecb { - TAILQ_ENTRY(ecb) chain; - struct scsi_xfer *xs; /* SCSI xfer ctrl block from above */ - int flags; /* Status */ -#define ECB_QNONE 0 -#define ECB_QFREE 1 -#define ECB_QREADY 2 -#define ECB_QNEXUS 3 -#define ECB_QBITS 0x07 -#define ECB_CHKSENSE 0x08 -#define ECB_ABORTED 0x10 -#define ECB_SETQ(e, q) do (e)->flags = ((e)->flags&~ECB_QBITS)|(q); while(0) - struct scsi_generic cmd; /* SCSI command block */ - int clen; - char *daddr; /* Saved data pointer */ - int dleft; /* Residue */ - struct callout_handle timeout_ch; - u_char stat; /* SCSI status byte */ -#if ESP_DEBUG > 0 - char trace[1000]; -#endif -}; -#if ESP_DEBUG > 0 -#define ECB_TRACE(ecb, msg, a, b) do { \ - const char *f = "[" msg "]"; \ - int n = strlen((ecb)->trace); \ - snprintf((ecb)->trace + n, sizeof((ecb)->trace) - n, f, a, b); \ -} while(0) -#else -#define ECB_TRACE(ecb, msg, a, b) -#endif - -/* - * 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. 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 T_NEED_TO_RESET 0x01 /* Should send a BUS_DEV_RESET */ -#define T_NEGOTIATE 0x02 /* (Re)Negotiate synchronous options */ -#define T_BUSY 0x04 /* Target is busy, i.e. cmd in progress */ -#define T_SYNCMODE 0x08 /* sync mode has been negotiated */ -#define T_SYNCHOFF 0x10 /* .. */ -#define T_RSELECTOFF 0x20 /* .. */ - u_char period; /* Period suggestion */ - u_char offset; /* Offset suggestion */ -} tinfo_t; - -/* 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_SHOWCCMDS 0x100 -#define ESP_SHOWMSGS 0x200 - -#ifdef ESP_DEBUG -extern int 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) -#define ESP_TRACE(str) do {if (esp_debug & ESP_SHOWTRAC) printf str;} while (0) -#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) -#define ESP_MSGS(str) do {if (esp_debug & ESP_SHOWMSGS) printf str;}while (0) -#else -#define ESP_ECBS(str) -#define ESP_MISC(str) -#define ESP_INTS(str) -#define ESP_TRACE(str) -#define ESP_CMDS(str) -#define ESP_START(str) -#define ESP_PHASE(str) -#define ESP_DMA(str) -#define ESP_MSGS(str) -#endif - -#define ESP_MAX_MSG_LEN 8 - -struct esp_softc { - device_t sc_dev; /* us as a device */ -#ifdef SPARC_DRIVER - struct sbusdev sc_sd; /* sbus device */ - struct intrhand sc_ih; /* intr handler */ -#endif - struct evcnt sc_intrcnt; /* intr count */ - struct scsi_link sc_link; /* scsi lint struct */ -#ifdef SPARC_DRIVER - volatile u_char *sc_reg; /* the registers */ - struct dma_softc *sc_dma; /* pointer to my dma */ -#else - volatile u_int32_t *sc_reg; /* the registers */ - struct tcds_slotconfig *sc_dma; /* DMA/slot info lives here. */ - void *sc_cookie; /* intr. handling cookie */ -#endif - - /* 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_timeout; - - /* register copies, see espreadregs() */ - u_char sc_espintr; - u_char sc_espstat; - u_char sc_espstep; - u_char sc_espfflags; - - /* Lists of command blocks */ - 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]; - - /* 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 */ - - /* 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 */ - u_char sc_flags; - u_char sc_selid; - u_char sc_lastcmd; - - /* Message stuff */ - u_char sc_msgpriq; /* One or more messages to send (encoded) */ - u_char sc_msgout; /* What message is on its way out? */ - u_char sc_omess[ESP_MAX_MSG_LEN]; - caddr_t sc_omp; /* Message pointer (for multibyte messages) */ - size_t sc_omlen; - u_char sc_imess[ESP_MAX_MSG_LEN + 1]; - caddr_t 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 */ -#ifdef SPARC_DRIVER - int sc_pri; /* SBUS priority */ -#endif - int sc_id; /* our scsi id */ - int sc_rev; /* esp revision */ - int sc_minsync; /* minimum sync period / 4 */ - int sc_maxxfer; /* maximum transfer size */ -}; - -/* 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 ESP_SBR 0x07 /* Expect a SCSI RST because we commanded it */ - -/* 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 ESP_DISCON 0x10 /* Target sent DISCONNECT msg */ -#define ESP_ABORTING 0x20 /* Bailing out */ -#define ESP_ICCS 0x40 /* Expect status phase results */ -#define ESP_WAITI 0x80 /* Waiting for non-DMA data to arrive */ - -/* values for sc_msgout */ -#define SEND_DEV_RESET 0x01 -#define SEND_PARITY_ERROR 0x02 -#define SEND_ABORT 0x04 -#define SEND_REJECT 0x08 -#define SEND_INIT_DET_ERR 0x10 -#define SEND_IDENTIFY 0x20 -#define SEND_SDTR 0x40 - -/* 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 */ -#define IOI 0x01 -#define CDI 0x02 -#define MSGI 0x04 - -/* Information transfer phases */ -#define DATA_OUT_PHASE (0) -#define DATA_IN_PHASE (IOI) -#define COMMAND_PHASE (CDI) -#define STATUS_PHASE (CDI|IOI) -#define MESSAGE_OUT_PHASE (MSGI|CDI) -#define MESSAGE_IN_PHASE (MSGI|CDI|IOI) - -#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 */ - -static u_char ESP_READ_REG(struct esp_softc *, int); - -#if 1 -static __inline u_char -ESP_READ_REG(sc, reg) - struct esp_softc *sc; - int reg; -{ - u_char v; - - v = sc->sc_reg[reg * 2] & 0xff; - alpha_mb(); - return v; -} -#else -#define ESP_READ_REG(sc, reg) \ - ((u_char)((sc)->sc_reg[(reg) * 2] & 0xff)) -#endif -#define ESP_WRITE_REG(sc, reg, val) \ - do { \ - u_char v = (val); \ - (sc)->sc_reg[(reg) * 2] = v; \ - alpha_mb(); \ - } while (0) - -#ifdef ESP_DEBUG -#define ESPCMD(sc, cmd) do { \ - if (esp_debug & ESP_SHOWCCMDS) \ - printf("<cmd:0x%x>", (unsigned)cmd); \ - sc->sc_lastcmd = cmd; \ - ESP_WRITE_REG(sc, ESP_CMD, cmd); \ -} while (0) -#else -#define ESPCMD(sc, cmd) ESP_WRITE_REG(sc, ESP_CMD, cmd) -#endif - -#define SAME_ESP(unit, bp, ca) \ - ((bp->val[0] == ca->ca_slot && bp->val[1] == ca->ca_offset) || \ - (bp->val[0] == -1 && bp->val[1] == unit)) - -#ifndef SPARC_DRIVER -/* DMA macros for ESP */ -#define DMA_ISINTR(sc) tcds_dma_isintr(sc) -#define DMA_RESET(sc) tcds_dma_reset(sc) -#define DMA_INTR(sc) tcds_dma_intr(sc) -#define DMA_SETUP(sc, addr, len, datain, dmasize) \ - tcds_dma_setup(sc, addr, len, datain, dmasize) -#define DMA_GO(sc) tcds_dma_go(sc) -#define DMA_ISACTIVE(sc) tcds_dma_isactive(sc) -#endif |
