diff options
| -rw-r--r-- | sys/dev/tc/asc.c | 2160 | ||||
| -rw-r--r-- | sys/dev/tc/asc_ioasic.c | 330 | ||||
| -rw-r--r-- | sys/dev/tc/asc_tc.c | 192 | ||||
| -rw-r--r-- | sys/dev/tc/ascvar.h | 93 | ||||
| -rw-r--r-- | sys/dev/tc/if_le_ibus.c | 193 | ||||
| -rw-r--r-- | sys/dev/tc/tcvar.h | 22 |
6 files changed, 3 insertions, 2987 deletions
diff --git a/sys/dev/tc/asc.c b/sys/dev/tc/asc.c deleted file mode 100644 index a7baa8eb1aa..00000000000 --- a/sys/dev/tc/asc.c +++ /dev/null @@ -1,2160 +0,0 @@ -/* $OpenBSD: asc.c,v 1.19 2001/06/25 15:27:59 aaron Exp $ */ -/* $NetBSD: asc.c,v 1.46 1998/05/08 15:39:01 mhitch Exp $ */ - -/*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Ralph Campbell and Rick Macklem. - * - * 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 the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. - * - * @(#)asc.c 8.3 (Berkeley) 7/3/94 - */ - -/* - * Mach Operating System - * Copyright (c) 1991,1990,1989 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie the - * rights to redistribute these changes. - */ - -/* - * HISTORY - * Log: scsi_53C94_hdw.c,v - * Revision 2.5 91/02/05 17:45:07 mrt - * Added author notices - * [91/02/04 11:18:43 mrt] - * - * Changed to use new Mach copyright - * [91/02/02 12:17:20 mrt] - * - * Revision 2.4 91/01/08 15:48:24 rpd - * Added continuation argument to thread_block. - * [90/12/27 rpd] - * - * Revision 2.3 90/12/05 23:34:48 af - * Recovered from pmax merge.. and from the destruction of a disk. - * [90/12/03 23:40:40 af] - * - * Revision 2.1.1.1 90/11/01 03:39:09 af - * Created, from the DEC specs: - * "PMAZ-AA TURBOchannel SCSI Module Functional Specification" - * Workstation Systems Engineering, Palo Alto, CA. Aug 27, 1990. - * And from the NCR data sheets - * "NCR 53C94, 53C95, 53C96 Advances SCSI Controller" - * [90/09/03 af] - */ - -/* - * File: scsi_53C94_hdw.h - * Author: Alessandro Forin, Carnegie Mellon University - * Date: 9/90 - * - * Bottom layer of the SCSI driver: chip-dependent functions - * - * This file contains the code that is specific to the NCR 53C94 - * SCSI chip (Host Bus Adapter in SCSI parlance): probing, start - * operation, and interrupt routine. - */ - -/* - * This layer works based on small simple 'scripts' that are installed - * at the start of the command and drive the chip to completion. - * The idea comes from the specs of the NCR 53C700 'script' processor. - * - * There are various reasons for this, mainly - * - Performance: identify the common (successful) path, and follow it; - * at interrupt time no code is needed to find the current status - * - Code size: it should be easy to compact common operations - * - Adaptability: the code skeleton should adapt to different chips without - * terrible complications. - * - Error handling: and it is easy to modify the actions performed - * by the scripts to cope with strange but well identified sequences - * - */ - -#include <asc.h> -#if NASC > 0 - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/timeout.h> -#include <sys/dkstat.h> -#include <sys/buf.h> -#include <sys/conf.h> -#include <sys/errno.h> -#include <sys/kernel.h> -#include <sys/device.h> -#include <sys/reboot.h> - -#include <dev/tc/tcvar.h> -#include <dev/tc/ioasicvar.h> - -#include <scsi/scsi_all.h> -#include <scsi/scsiconf.h> - -#include <machine/cpu.h> -#include <machine/autoconf.h> -#include <machine/bus.h> - -#include <pmax/dev/device.h> -#include <pmax/dev/scsi.h> -#include <pmax/dev/ascreg.h> - -#include <pmax/pmax/asic.h> -#include <pmax/pmax/kmin.h> - - -/*#define readback(a) { register int foo; wbflush(); foo = (a); }*/ -#define readback(a) { register int foo; foo = (a); } - -/* - * In 4ns ticks. - */ -int asc_to_scsi_period[] = { - 32, - 33, - 34, - 35, - 5, - 5, - 6, - 7, - 8, - 9, - 10, - 11, - 12, - 13, - 14, - 15, - 16, - 17, - 18, - 19, - 20, - 21, - 22, - 23, - 24, - 25, - 26, - 27, - 28, - 29, - 30, - 31, -}; - -/* - * Debugging log of SCSI operations. - */ - -#ifdef DEBUG -int asc_debug = 1; -int asc_debug_cmd; -int asc_debug_bn; -int asc_debug_sz; -#define NLOG 32 -struct asc_log { - u_int status; - u_char state; - u_char msg; - int target; - int resid; -} asc_log[NLOG], *asc_logp = asc_log; -#define PACK(unit, status, ss, ir) \ - ((unit << 24) | (status << 16) | (ss << 8) | ir) -void asc_DumpLog __P((char *str)); -#endif - - -/* - * Script, scsi state, and device softc structure declarations. - * script pointers occur in both scsi state and the softc, - * so they are defined first. - */ - - -/* - * Scripts are entries in a state machine table. - * A script has four parts: a pre-condition, an action, a command to the chip, - * and an index into asc_scripts for the next state. The first triggers error - * handling if not satisfied and in our case it is formed by the - * values of the interrupt register and status register, this - * basically captures the phase of the bus and the TC and BS - * bits. The action part is just a function pointer, and the - * command is what the 53C94 should be told to do at the end - * of the action processing. This command is only issued and the - * script proceeds if the action routine returns TRUE. - * See asc_intr() for how and where this is all done. - */ -struct asc_softc; -typedef struct script { - int condition; /* expected state at interrupt time */ - - int (*action) /* extra operations */ - __P((register struct asc_softc *asc, register int status, - register int ss, register int ir)); - int command; /* command to the chip */ - struct script *next; /* index into asc_scripts for next state */ -} script_t; - - -/* - * script definitions - */ - -/* Matching on the condition value */ -#define SCRIPT_MATCH(ir, csr) ((ir) | (((csr) & 0x67) << 8)) - -/* - * A typedef for a script function, to use in forward declarations. - */ -typedef int -script_fn_t __P((register struct asc_softc *asc, register int status, - register int ss, register int ir)); - - -/* forward decls of script actions */ -static script_fn_t script_nop; /* when nothing needed */ -static script_fn_t asc_end; /* all come to an end */ -static script_fn_t asc_get_status; /* get status from target */ -static script_fn_t asc_dma_in; /* start reading data from target */ -static script_fn_t asc_last_dma_in; /* cleanup after all data is read */ -static script_fn_t asc_resume_in; /* resume data in after a message */ -static script_fn_t asc_resume_dma_in; /* resume DMA after a disconnect */ -static script_fn_t asc_dma_out; /* send data to target via dma */ -static script_fn_t asc_last_dma_out; /* cleanup after all data is written */ -static script_fn_t asc_resume_out; /* resume data out after a message */ -static script_fn_t asc_resume_dma_out; /* resume DMA after a disconnect */ -static script_fn_t asc_sendsync; /* negotiate sync xfer */ -static script_fn_t asc_replysync; /* negotiate sync xfer */ -static script_fn_t asc_msg_in; /* process a message byte */ -static script_fn_t asc_disconnect; /* process an expected disconnect */ - -/* Define the index into asc_scripts for various state transitions */ -#define SCRIPT_DATA_IN 0 -#define SCRIPT_CONTINUE_IN 2 -#define SCRIPT_DATA_OUT 3 -#define SCRIPT_CONTINUE_OUT 5 -#define SCRIPT_SIMPLE 6 -#define SCRIPT_GET_STATUS 7 -#define SCRIPT_DONE 8 -#define SCRIPT_MSG_IN 9 -#define SCRIPT_REPLY_SYNC 11 -#define SCRIPT_TRY_SYNC 12 -#define SCRIPT_DISCONNECT 15 -#define SCRIPT_RESEL 16 -#define SCRIPT_RESUME_IN 17 -#define SCRIPT_RESUME_DMA_IN 18 -#define SCRIPT_RESUME_OUT 19 -#define SCRIPT_RESUME_DMA_OUT 20 -#define SCRIPT_RESUME_NO_DATA 21 - -/* - * Scripts - */ -script_t asc_scripts[] = { - /* start data in */ - {SCRIPT_MATCH(ASC_INT_FC | ASC_INT_BS, SCSI_PHASE_DATAI), /* 0 */ - asc_dma_in, ASC_CMD_XFER_INFO | ASC_CMD_DMA, - &asc_scripts[SCRIPT_DATA_IN + 1]}, - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_STATUS), /* 1 */ - asc_last_dma_in, ASC_CMD_I_COMPLETE, - &asc_scripts[SCRIPT_GET_STATUS]}, - - /* continue data in after a chunk is finished */ - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_DATAI), /* 2 */ - asc_dma_in, ASC_CMD_XFER_INFO | ASC_CMD_DMA, - &asc_scripts[SCRIPT_DATA_IN + 1]}, - - /* start data out */ - {SCRIPT_MATCH(ASC_INT_FC | ASC_INT_BS, SCSI_PHASE_DATAO), /* 3 */ - asc_dma_out, ASC_CMD_XFER_INFO | ASC_CMD_DMA, - &asc_scripts[SCRIPT_DATA_OUT + 1]}, - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_STATUS), /* 4 */ - asc_last_dma_out, ASC_CMD_I_COMPLETE, - &asc_scripts[SCRIPT_GET_STATUS]}, - - /* continue data out after a chunk is finished */ - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_DATAO), /* 5 */ - asc_dma_out, ASC_CMD_XFER_INFO | ASC_CMD_DMA, - &asc_scripts[SCRIPT_DATA_OUT + 1]}, - - /* simple command with no data transfer */ - {SCRIPT_MATCH(ASC_INT_FC | ASC_INT_BS, SCSI_PHASE_STATUS), /* 6 */ - script_nop, ASC_CMD_I_COMPLETE, - &asc_scripts[SCRIPT_GET_STATUS]}, - - /* get status and finish command */ - {SCRIPT_MATCH(ASC_INT_FC, SCSI_PHASE_MSG_IN), /* 7 */ - asc_get_status, ASC_CMD_MSG_ACPT, - &asc_scripts[SCRIPT_DONE]}, - {SCRIPT_MATCH(ASC_INT_DISC, 0), /* 8 */ - asc_end, ASC_CMD_NOP, - &asc_scripts[SCRIPT_DONE]}, - - /* message in */ - {SCRIPT_MATCH(ASC_INT_FC, SCSI_PHASE_MSG_IN), /* 9 */ - asc_msg_in, ASC_CMD_MSG_ACPT, - &asc_scripts[SCRIPT_MSG_IN + 1]}, - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_MSG_IN), /* 10 */ - script_nop, ASC_CMD_XFER_INFO, - &asc_scripts[SCRIPT_MSG_IN]}, - - /* send synchonous negotiation reply */ - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_MSG_OUT), /* 11 */ - asc_replysync, ASC_CMD_XFER_INFO, - &asc_scripts[SCRIPT_REPLY_SYNC]}, - - /* try to negotiate synchonous transfer parameters */ - {SCRIPT_MATCH(ASC_INT_FC | ASC_INT_BS, SCSI_PHASE_MSG_OUT), /* 12 */ - asc_sendsync, ASC_CMD_XFER_INFO, - &asc_scripts[SCRIPT_TRY_SYNC + 1]}, - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_MSG_IN), /* 13 */ - script_nop, ASC_CMD_XFER_INFO, - &asc_scripts[SCRIPT_MSG_IN]}, - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_COMMAND), /* 14 */ - script_nop, ASC_CMD_XFER_INFO | ASC_CMD_DMA, - &asc_scripts[SCRIPT_RESUME_NO_DATA]}, - - /* handle a disconnect */ - {SCRIPT_MATCH(ASC_INT_DISC, SCSI_PHASE_DATAO), /* 15 */ - asc_disconnect, ASC_CMD_ENABLE_SEL, - &asc_scripts[SCRIPT_RESEL]}, - - /* reselect sequence: this is just a placeholder so match fails */ - {SCRIPT_MATCH(0, SCSI_PHASE_MSG_IN), /* 16 */ - script_nop, ASC_CMD_MSG_ACPT, - &asc_scripts[SCRIPT_RESEL]}, - - /* resume data in after a message */ - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_DATAI), /* 17 */ - asc_resume_in, ASC_CMD_XFER_INFO | ASC_CMD_DMA, - &asc_scripts[SCRIPT_DATA_IN + 1]}, - - /* resume partial DMA data in after a message */ - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_DATAI), /* 18 */ - asc_resume_dma_in, ASC_CMD_XFER_INFO | ASC_CMD_DMA, - &asc_scripts[SCRIPT_DATA_IN + 1]}, - - /* resume data out after a message */ - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_DATAO), /* 19 */ - asc_resume_out, ASC_CMD_XFER_INFO | ASC_CMD_DMA, - &asc_scripts[SCRIPT_DATA_OUT + 1]}, - - /* resume partial DMA data out after a message */ - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_DATAO), /* 20 */ - asc_resume_dma_out, ASC_CMD_XFER_INFO | ASC_CMD_DMA, - &asc_scripts[SCRIPT_DATA_OUT + 1]}, - - /* resume after a message when there is no more data */ - {SCRIPT_MATCH(ASC_INT_BS, SCSI_PHASE_STATUS), /* 21 */ - script_nop, ASC_CMD_I_COMPLETE, - &asc_scripts[SCRIPT_GET_STATUS]}, -}; - - -#include <dev/tc/ascvar.h> - -/* - * Internal forward declarations. - */ -static void asc_reset __P((asc_softc_t asc, asc_regmap_t *regs)); -static void asc_startcmd __P((asc_softc_t asc, int target)); -static void asc_timeout __P((void *arg)); - -#ifdef USE_NEW_SCSI -/* Glue to the machine-independent scsi */ -struct scsi_adapter asc_switch = { - NULL, /* XXX - asc_scsi_cmd */ -/*XXX*/ minphys, /* no max transfer size; DMA engine deals */ - NULL, - NULL, -}; - -struct scsi_device asc_dev = { -/*XXX*/ NULL, /* Use default error handler */ -/*XXX*/ NULL, /* have a queue, served by this */ -/*XXX*/ NULL, /* have no async handler */ -/*XXX*/ NULL, /* Use default 'done' routine */ -}; -#endif - -/* - * Definition of the controller for the old auto-configuration program. - */ -void asc_start __P((register ScsiCmd *scsicmd)); -int asc_intr __P ((void *asc)); -struct pmax_driver ascdriver = { - "asc", NULL, asc_start, 0, asc_intr, -}; - -void asc_minphys __P((struct buf *bp)); - -extern struct cfdriver asc_cd; -struct cfdriver asc_cd = { - NULL, "asc", DV_DULL -}; - -/* - * bus-parent shared attach function - */ -void -ascattach(asc, bus_speed) - register asc_softc_t asc; - int bus_speed; -{ - register asc_regmap_t *regs; - int id, s; - - int unit; - - unit = asc->sc_dev.dv_unit; - - /* - * Set up machine dependencies. - * (1) timing based on turbochannel frequency - */ - - /* dma setup done in parent-specific attach code */ - - /* - * Now for timing. The 3max has a 25Mhz tb whereas the 3min and - * maxine are 12.5Mhz. - */ - switch (bus_speed) { - case ASC_SPEED_25_MHZ: - asc->min_period = ASC_MIN_PERIOD25; - asc->max_period = ASC_MAX_PERIOD25; - asc->ccf = ASC_CCF(25); - asc->timeout_250 = ASC_TIMEOUT_250(25, asc->ccf); - asc->tb_ticks = 10; - break; - - case ASC_SPEED_12_5_MHZ: - default: - asc->min_period = ASC_MIN_PERIOD12; - asc->max_period = ASC_MAX_PERIOD12; - asc->ccf = ASC_CCF(13); - asc->timeout_250 = ASC_TIMEOUT_250(13, asc->ccf); - asc->tb_ticks = 20; - break; - }; - - asc->state = ASC_STATE_IDLE; - asc->target = -1; - - regs = asc->regs; - - /* - * Reset chip, fully. Note that interrupts are already enabled. - */ - s = splbio(); - - /* preserve our ID for now */ - asc->sc_id = regs->asc_cnfg1 & ASC_CNFG1_MY_BUS_ID; - asc->myidmask = ~(1 << asc->sc_id); - - asc_reset(asc, regs); - - /* - * Our SCSI id on the bus. - * The user can set this via the prom on 3maxen/pmaxen. - * If this changes it is easy to fix: make a default that - * can be changed as boot arg. - */ -#ifdef unneeded - regs->asc_cnfg1 = (regs->asc_cnfg1 & ~ASC_CNFG1_MY_BUS_ID) | - (scsi_initiator_id[unit] & 0x7); - asc->sc_id = regs->asc_cnfg1 & ASC_CNFG1_MY_BUS_ID; -#endif - - id = asc->sc_id; - splx(s); - - /* Hack for old-sytle SCSI-device probe */ - (void) pmax_add_scsi(&ascdriver, unit); - - printf(": target %d\n", id); - - -#ifdef USE_NEW_SCSI - /* - * fill in the prototype scsi_link. - */ - asc->sc_link.channel = SCSI_CHANNEL_ONLY_ONE; - asc->sc_link.adapter_softc = asc; - asc->sc_link.adapter_target = asc->sc_id; - asc->sc_link.adapter = &asc_switch; - asc->sc_link.device = &asc_dev; - asc->sc_link.openings = 2; - - /* - * Now try to attach all the sub-devices. - */ - config_found(self, &asc->sc_link, scsiprint); - -#endif /* USE_NEW_SCSI */ -} - -/* - * Per Fogelstrom's SCSI Driver breaks down request transfer size. - */ -void -asc_minphys(bp) - struct buf *bp; -{ - /*XXX*/ -} - -/* - * Start activity on a SCSI device. - * We maintain information on each device separately since devices can - * connect/disconnect during an operation. - */ -void -asc_start(scsicmd) - register ScsiCmd *scsicmd; /* command to start */ -{ - register struct pmax_scsi_device *sdp = scsicmd->sd; - register asc_softc_t asc = asc_cd.cd_devs[sdp->sd_ctlr]; - int s; - - s = splbio(); - /* - * Check if another command is already in progress. - * We may have to change this if we allow SCSI devices with - * separate LUNs. - */ - if (asc->cmd[sdp->sd_drive]) { - printf("asc %d: device %s busy at start\n", - sdp->sd_ctlr, /*XXX*/ - sdp->sd_driver->d_name); - (*sdp->sd_driver->d_done)(scsicmd->unit, EBUSY, - scsicmd->buflen, 0); - splx(s); - } - asc->cmd[sdp->sd_drive] = scsicmd; - /* - * Kludge: use a 60 second timeout if data is being transferred, - * otherwise use a 30 minute timeout. - */ - timeout_set(&asc->asc_timo, asc_timeout, scsicmd); - timeout_add(&asc->asc_timo, hz * (scsicmd->buflen == 0 ? 1800 : 60)); - asc_startcmd(asc, sdp->sd_drive); - splx(s); -} - - -#ifdef USE_NEW_SCSI -int -asc_poll(asc, target) - struct asc_softc *asc; - int target; -{ - struct scsi_xfer *scsicmd = asc->cmd[target]; - int count = scsicmd->timeout * 10; - - while(count) { - if(asc->regs->asc_status &ASC_CSR_INT) { - asc_intr(asc); - } - if(scsicmd->flags & ITSDONE) - break; - DELAY(5); - count--; - } - if(count == 0) { - scsicmd->error = XS_TIMEOUT; - asc_end(asc, 0, 0, 0); - } - return COMPLETE; -} -#endif /*USE_NEW_SCSI*/ - -static void -asc_reset(asc, regs) - asc_softc_t asc; - asc_regmap_t *regs; -{ - - /* - * Reset chip and wait till done - */ - regs->asc_cmd = ASC_CMD_RESET; - tc_syncbus(); DELAY(25); - - /* spec says this is needed after reset */ - regs->asc_cmd = ASC_CMD_NOP; - tc_syncbus(); DELAY(25); - - /* - * Set up various chip parameters - */ - regs->asc_ccf = asc->ccf; - tc_syncbus(); DELAY(25); - regs->asc_sel_timo = asc->timeout_250; - /* restore our ID */ - regs->asc_cnfg1 = asc->sc_id | ASC_CNFG1_P_CHECK; - /* include ASC_CNFG2_SCSI2 if you want to allow SCSI II commands */ - regs->asc_cnfg2 = /* ASC_CNFG2_RFB | ASC_CNFG2_SCSI2 | */ ASC_CNFG2_EPL; - regs->asc_cnfg3 = 0; - /* zero anything else */ - ASC_TC_PUT(regs, 0); - regs->asc_syn_p = asc->min_period; - regs->asc_syn_o = 0; /* async for now */ - tc_mb(); -} - -/* - * Start a SCSI command on a target. - */ -static void -asc_startcmd(asc, target) - asc_softc_t asc; - int target; -{ - register asc_regmap_t *regs; - register ScsiCmd *scsicmd; - register State *state; - int len; - - /* - * See if another target is currently selected on this SCSI bus. - */ - if (asc->target >= 0) - return; - - regs = asc->regs; - - /* - * If a reselection is in progress, it is Ok to ignore it since - * the ASC will automatically cancel the command and flush - * the FIFO if the ASC is reselected before the command starts. - * If we try to use ASC_CMD_DISABLE_SEL, we can hang the system if - * a reselect occurs before starting the command. - */ - - asc->state = ASC_STATE_BUSY; - asc->target = target; - - /* cache some pointers */ - scsicmd = asc->cmd[target]; - state = &asc->st[target]; - -#ifdef DEBUG - if (asc_debug > 1) { - printf("asc_startcmd: %s target %d cmd %x len %d\n", - scsicmd->sd->sd_driver->d_name, target, - scsicmd->cmd[0], scsicmd->buflen); - } -#endif - - /* Try to avoid reselect collisions */ - if ((regs->asc_status & (ASC_CSR_INT|SCSI_PHASE_MSG_IN)) == - (ASC_CSR_INT|SCSI_PHASE_MSG_IN)) { -/* printf("asc_startcmd: possible reselect in progress\n"); */ - return; - } - - /* - * Init the chip and target state. - */ - state->flags = state->flags & DID_SYNC; - state->error = 0; - state->script = (script_t *)0; - state->msg_out = SCSI_NO_OP; - - len = scsicmd->cmdlen; - state->dmalen = len; - - /* check for simple SCSI command with no data transfer */ - if ((state->buflen = scsicmd->buflen) == 0) { - /* check for sync negotiation */ - if ((scsicmd->flags & SCSICMD_USE_SYNC) && - !(state->flags & DID_SYNC)) { - asc->script = &asc_scripts[SCRIPT_TRY_SYNC]; - state->flags |= TRY_SYNC; - } else - asc->script = &asc_scripts[SCRIPT_SIMPLE]; - state->buf = (char *)0; - } else if (scsicmd->flags & SCSICMD_DATA_TO_DEVICE) { - asc->script = &asc_scripts[SCRIPT_DATA_OUT]; - state->buf = scsicmd->buf; - state->flags |= DMA_OUT; - } else { - asc->script = &asc_scripts[SCRIPT_DATA_IN]; - state->buf = scsicmd->buf; - state->flags |= DMA_IN; - } - -#ifdef DEBUG - asc_debug_cmd = scsicmd->cmd[0]; - if (scsicmd->cmd[0] == SCSI_READ_EXT) { - asc_debug_bn = (scsicmd->cmd[2] << 24) | - (scsicmd->cmd[3] << 16) | - (scsicmd->cmd[4] << 8) | - scsicmd->cmd[5]; - asc_debug_sz = (scsicmd->cmd[7] << 8) | scsicmd->cmd[8]; - } - asc_logp->status = PACK(asc->sc_dev.dv_unit, 0, 0, asc_debug_cmd); - asc_logp->target = asc->target; - asc_logp->state = asc->script - asc_scripts; - asc_logp->msg = SCSI_DIS_REC_IDENTIFY; - asc_logp->resid = scsicmd->buflen; - if (++asc_logp >= &asc_log[NLOG]) - asc_logp = asc_log; -#endif - - /* initialize the DMA */ - len = (*asc->dma_start)(asc, state, scsicmd->cmd, ASCDMA_WRITE, - len, 0); - ASC_TC_PUT(regs, len); - readback(regs->asc_cmd); - - regs->asc_dbus_id = target; - readback(regs->asc_dbus_id); - regs->asc_syn_p = state->sync_period; - readback(regs->asc_syn_p); - regs->asc_syn_o = state->sync_offset; - readback(regs->asc_syn_o); - - /* Try to avoid reselect collisions */ - if ((regs->asc_status & (ASC_CSR_INT|SCSI_PHASE_MSG_IN)) == - (ASC_CSR_INT|SCSI_PHASE_MSG_IN)) { -/* printf("asc_startcmd: reselect in progress (before select)\n");*/ - return; - } - - /* preload the FIFO with the message to be sent */ - regs->asc_fifo = SCSI_DIS_REC_IDENTIFY; - tc_mb(); - - if (state->flags & TRY_SYNC) - regs->asc_cmd = len = ASC_CMD_SEL_ATN_STOP; - else - regs->asc_cmd = len = ASC_CMD_SEL_ATN | ASC_CMD_DMA; - readback(regs->asc_cmd); - - /* Try to avoid reselect collisions */ - if ((regs->asc_status & (ASC_CSR_INT|SCSI_PHASE_MSG_IN)) == - (ASC_CSR_INT|SCSI_PHASE_MSG_IN)) { -/* printf("asc_startcmd: reselect in progress after select\n");*/ - return; - } else { - /* - * Here's a potentially nasty but infrequent problem: a - * reselect may have occurred, but did not interrupt. - */ - if (regs->asc_cmd != len && - regs->asc_cmd == (ASC_CMD_NOP|ASC_CMD_DMA)) { - if ((regs->asc_status & ASC_CSR_INT) == 0) { - delay(250); - if (regs->asc_status == SCSI_PHASE_MSG_IN) { - printf("asc_startcmd: reselect failed to interrupt?\n"); - /* XXXX THIS NEEDS FIXING */ - } - } - } - } - -} - -/* - * Interrupt routine - * Take interrupts from the chip - * - * Implementation: - * Move along the current command's script if - * all is well, invoke error handler if not. - */ -int -asc_intr(sc) - void *sc; -{ - register asc_softc_t asc = (asc_softc_t) sc; - register asc_regmap_t *regs = asc->regs; - register State *state; - register script_t *scpt; - register int ss, ir, status; - register unsigned char cmd_was; - static int ill_cmd_count = 0; /* XXX */ - - /* collect ephemeral information */ - status = regs->asc_status; -again: - ss = regs->asc_ss; - cmd_was = regs->asc_cmd; - - /* drop spurious interrupts */ - if ((status & ASC_CSR_INT) == 0) - return (-1); /* XXX */ - - ir = regs->asc_intr; /* this resets the previous two: i.e.,*/ - /* this re-latches CSR (and SSTEP) */ - scpt = asc->script; - - -#ifdef DEBUG - asc_logp->status = PACK(asc->sc_dev.dv_unit, status, ss, ir); - asc_logp->target = (asc->state == ASC_STATE_BUSY) ? asc->target : -1; - asc_logp->state = scpt - asc_scripts; - asc_logp->msg = cmd_was; - asc_logp->resid = 0; - if (++asc_logp >= &asc_log[NLOG]) - asc_logp = asc_log; - if (asc_debug > 2) - printf("asc_intr: status %x ss %x ir %x cond %d:%x\n", - status, ss, ir, scpt - asc_scripts, scpt->condition); -#endif - - /* This must be done withing 250msec of disconnect */ - if (ir & ASC_INT_DISC) { - regs->asc_cmd = ASC_CMD_ENABLE_SEL; - readback(regs->asc_cmd); - } - - /* check the expected state */ - if (SCRIPT_MATCH(ir, status) == scpt->condition) { - /* - * Perform the appropriate operation, then proceed. - */ - if ((*scpt->action)(asc, status, ss, ir)) { - regs->asc_cmd = scpt->command; - readback(regs->asc_cmd); - asc->script = scpt->next; - } - goto done; - } - - /* - * Check for parity error. - * Hardware will automatically set ATN - * to request the device for a MSG_OUT phase. - */ - if (status & ASC_CSR_PE) { - printf("%s: SCSI device %d: incomming parity error seen\n", - asc->sc_dev.dv_xname, asc->target); - asc->st[asc->target].flags |= PARITY_ERR; - } - - /* - * Check for gross error. - * Probably a bug in a device driver. - */ - if (status & ASC_CSR_GE) { - printf("%s: SCSI device %d: gross error\n", - asc->sc_dev.dv_xname, asc->target); - goto abort; - } - - /* check for message in or out */ - if ((ir & ~ASC_INT_FC) == ASC_INT_BS) { - register int len, fifo; - - state = &asc->st[asc->target]; - switch (ASC_PHASE(status)) { - case SCSI_PHASE_DATAI: - case SCSI_PHASE_DATAO: - ASC_TC_GET(regs, len); - fifo = regs->asc_flags & ASC_FLAGS_FIFO_CNT; - if (len != 0 && ( - (asc->script - asc_scripts) == SCRIPT_DATA_IN + 1 || - (asc->script - asc_scripts) == SCRIPT_CONTINUE_IN || - (asc->script - asc_scripts) == SCRIPT_DATA_OUT + 1 || - (asc->script - asc_scripts) == SCRIPT_CONTINUE_OUT)) { /* - * From the Mach driver: - * After a reconnect and restart dma in/out, we - * seem to have gotten an interrupt even though - * the DMA is running. The Mach driver just - * ignores this interrupt. - */ - printf("asc_intr: ignoring strange interrupt"); - printf(" tc %d fifo residue %d script %d\n", - len, fifo, asc->script - asc_scripts); - goto done; - } - printf("asc_intr: data overrun: buflen %d dmalen %d tc %d fifo %d\n", - state->buflen, state->dmalen, len, fifo); - goto abort; - - case SCSI_PHASE_MSG_IN: - break; - - case SCSI_PHASE_MSG_OUT: - /* - * Check for parity error. - * Hardware will automatically set ATN - * to request the device for a MSG_OUT phase. - */ - if (state->flags & PARITY_ERR) { - state->flags &= ~PARITY_ERR; - state->msg_out = SCSI_MESSAGE_PARITY_ERROR; - /* reset message in counter */ - state->msglen = 0; - } else - state->msg_out = SCSI_NO_OP; - regs->asc_fifo = state->msg_out; - regs->asc_cmd = ASC_CMD_XFER_INFO; - readback(regs->asc_cmd); - goto done; - - case SCSI_PHASE_STATUS: - /* probably an error in the SCSI command */ - asc->script = &asc_scripts[SCRIPT_GET_STATUS]; - regs->asc_cmd = ASC_CMD_I_COMPLETE; - readback(regs->asc_cmd); - goto done; - - case SCSI_PHASE_COMMAND: - /* - * This seems to occur after the command is sent - * following sync negotiation. The device still - * wants more command data. The fifo appears to - * to still have the unsent data - but the 53C94 - * signaled TC. If the fifo still contains data, - * transfer it, otherwise do a transfer pad. The - * target should then continue through the rest of - * the phases and complete normally. - */ - printf("asc_intr: tgt %d command phase TC zero", - asc->target); - if ((regs->asc_flags & ASC_FLAGS_FIFO_CNT) != 0) { - printf(" with non-empty fifo %d\n", - regs->asc_flags & ASC_FLAGS_FIFO_CNT); - regs->asc_cmd = ASC_CMD_XFER_INFO; - } else { - printf("; padding command\n"); - ASC_TC_PUT(regs, 0xff); - regs->asc_cmd = ASC_CMD_XFER_PAD | ASC_CMD_DMA; - } - goto done; - - default: - printf("asc_intr: target %d, unknown phase 0x%x\n", - asc->target, status); - goto abort; - } - - if (state->script) { - printf("asc_intr: target %d, incomplete script %p\n", - asc->target, state->script); - goto abort; - } - - /* check for DMA in progress */ - ASC_TC_GET(regs, len); - fifo = regs->asc_flags & ASC_FLAGS_FIFO_CNT; - /* flush any data in the FIFO */ - if (fifo) { - if (state->flags & DMA_OUT) { -#ifdef ASC_DIAGNOSTIC - printf("asc: DMA_OUT, fifo resid %d, len %d, flags 0x%x\n", - fifo, len, state->flags); -#endif /* ASC_DIAGNOSTIC */ - len += fifo; - } else if (state->flags & DMA_IN) { -#ifdef ASC_DIAGNOSTIC - printf("asc_intr: IN: dmalen %d len %d fifo %d\n", - state->dmalen, len, fifo); /* XXX */ -#endif /* ASC_DIAGNOSTIC */ - } else - printf("asc_intr: dmalen %d len %d fifo %d\n", - state->dmalen, len, fifo); /* XXX */ - regs->asc_cmd = ASC_CMD_FLUSH; - tc_mb(); - readback(regs->asc_cmd); - DELAY(2); - } - if (len && (state->flags & DMA_IN_PROGRESS)) { - /* save number of bytes still to be sent or received */ - state->dmaresid = len; - state->flags &= ~DMA_IN_PROGRESS; - ASC_TC_PUT(regs, 0); -#ifdef DEBUG - if (asc_logp == asc_log) - asc_log[NLOG - 1].resid = len; - else - asc_logp[-1].resid = len; -#endif - /* setup state to resume to */ - if (state->flags & DMA_IN) { - /* - * Since the ASC_CNFG3_SRB bit of the - * cnfg3 register bit is not set, - * we just transferred an extra byte. - * Since we can't resume on an odd byte - * boundary, we copy the valid data out - * and resume DMA at the start address. - */ - if (len & 1) { - printf("asc_intr: msg in len %d (fifo %d)\n", - len, fifo); /* XXX */ - len = state->dmalen - len; - goto do_in; - } - state->script = - &asc_scripts[SCRIPT_RESUME_DMA_IN]; - state->flags |= DMA_RESUME; - } else if (state->flags & DMA_OUT) { - state->script = - &asc_scripts[SCRIPT_RESUME_DMA_OUT]; - state->flags |= DMA_RESUME; - } else - state->script = asc->script; - } else if (state->flags & DMA_IN) { -#ifdef ASC_DIAGNOSTIC - if (len) { - printf("asc_intr: 1: len %d (fifo %d)\n", - len, fifo); /* XXX */ - } -#endif - /* setup state to resume to */ - if (state->flags & DMA_IN_PROGRESS) { - len = state->dmalen; - state->flags &= ~DMA_IN_PROGRESS; - do_in: - state->dmalen = len; /* dma_end needs actual length */ - (*asc->dma_end)(asc, state, ASCDMA_READ); - state->buf += len; - state->buflen -= len; - } - if (state->buflen) - state->script = (state->flags & DMA_RESUME) ? - &asc_scripts[SCRIPT_RESUME_DMA_IN] : - &asc_scripts[SCRIPT_RESUME_IN]; - else - state->script = - &asc_scripts[SCRIPT_RESUME_NO_DATA]; - } else if (state->flags & DMA_OUT) { - if (len) { -#ifdef DEBUG - printf("asc_intr: 2: len %d (fifo %d)\n", len, - fifo); /* XXX */ -#endif - } - /* - * If this is the last chunk, the next expected - * state is to get status. - */ - if (state->flags & DMA_IN_PROGRESS) { - state->flags &= ~DMA_IN_PROGRESS; - (*asc->dma_end)(asc, state, ASCDMA_WRITE); - len = state->dmalen; - state->buf += len; - state->buflen -= len; - } - if (state->buflen) - state->script = (state->flags & DMA_RESUME) ? - &asc_scripts[SCRIPT_RESUME_DMA_OUT] : - &asc_scripts[SCRIPT_RESUME_OUT]; - else - state->script = - &asc_scripts[SCRIPT_RESUME_NO_DATA]; - } else if (asc->script == &asc_scripts[SCRIPT_SIMPLE]) - state->script = &asc_scripts[SCRIPT_RESUME_NO_DATA]; - else - state->script = asc->script; - - /* setup to receive a message */ - asc->script = &asc_scripts[SCRIPT_MSG_IN]; - state->msglen = 0; - regs->asc_cmd = ASC_CMD_XFER_INFO; - readback(regs->asc_cmd); - goto done; - } - - /* check for SCSI bus reset */ - if (ir & ASC_INT_RESET) { - register int i; - - printf("%s: SCSI bus reset!!\n", asc->sc_dev.dv_xname); - /* need to flush any pending commands */ - for (i = 0; i < ASC_NCMD; i++) { - if (!asc->cmd[i]) - continue; - asc->st[i].error = EIO; - asc_end(asc, 0, 0, 0); - } - /* rearbitrate synchronous offset */ - for (i = 0; i < ASC_NCMD; i++) { - asc->st[i].sync_offset = 0; - asc->st[i].flags = 0; - } - asc->target = -1; - return 0 ; /* XXX ??? */ - } - - /* check for disconnect */ - if (ir & ASC_INT_DISC) { - state = &asc->st[asc->target]; - switch (asc->script - asc_scripts) { - case SCRIPT_DONE: - case SCRIPT_DISCONNECT: - /* - * Disconnects can happen normally when the - * command is complete with the phase being - * either SCSI_PHASE_DATAO or SCSI_PHASE_MSG_IN. - * The SCRIPT_MATCH() only checks for one phase - * so we can wind up here. - * Perform the appropriate operation, then proceed. - */ - if ((*scpt->action)(asc, status, ss, ir)) { - regs->asc_cmd = scpt->command; - readback(regs->asc_cmd); - asc->script = scpt->next; - } - goto done; - - case SCRIPT_TRY_SYNC: - case SCRIPT_SIMPLE: - case SCRIPT_DATA_IN: - case SCRIPT_DATA_OUT: /* one of the starting scripts */ - if (ASC_SS(ss) == 0) { - /* device did not respond */ - if (regs->asc_flags & ASC_FLAGS_FIFO_CNT) { - regs->asc_cmd = ASC_CMD_FLUSH; - readback(regs->asc_cmd); - } - state->error = ENXIO; - asc_end(asc, status, ss, ir); - return 0 ; /* XXX ??? */ - } - /* FALLTHROUGH */ - - default: - printf("%s: SCSI device %d: unexpected disconnect\n", - asc->sc_dev.dv_xname, asc->target); -#ifdef DEBUG - asc_DumpLog("asc_disc"); -#endif - /* - * On rare occasions my RZ24 does a disconnect during - * data in phase and the following seems to keep it - * happy. - * XXX Should a scsi disk ever do this?? - */ - asc->script = &asc_scripts[SCRIPT_RESEL]; - asc->state = ASC_STATE_RESEL; - state->flags |= DISCONN; - regs->asc_cmd = ASC_CMD_ENABLE_SEL; - readback(regs->asc_cmd); - return 0 ; /* XXX ??? */ - } - } - - /* mhitch - debug - check select/reselect collision */ - if ((ir & ASC_INT_ILL) && (regs->asc_cmd & ASC_CMD_SEL_ATN)) { - printf("asc_intr: Illegal command status %x ir %x\n", - status, ir); - /* Should process reselect? */ - } - - /* check for illegal command */ - if (ir & ASC_INT_ILL) { -#ifdef ASC_DIAGNOSTIC - printf("asc_intr: Illegal command status %x ir %x cmd %x ? %x\n", - status, ir, regs->asc_cmd, asc_scripts[SCRIPT_MSG_IN].command); -#endif - /* - * On a 5000/200, I see this frequently when using an RD52 - * CDROM. The 53c94 doesn't seem to get the Message Accept - * command, and generates an "Illegal Command" interrupt. - * Re-issuing the Message Accept at this point seems to keep - * things going. Don't allow this too many times in a row, - * just to make sure we don't get hung up. mhitch - */ - if (ill_cmd_count++ != 3) { /* XXX */ - regs->asc_cmd = ASC_CMD_MSG_ACPT; /* XXX */ - readback(regs->asc_cmd); /* XXX */ - goto done; /* XXX */ - } /* XXX */ - printf("asc_intr: Illegal command tgt %d\n", asc->target); - goto abort; /* XXX */ - } - ill_cmd_count = 0; /* XXX */ - - /* check for reselect */ - if (ir & ASC_INT_RESEL) { - unsigned fifo, id, msg; - - fifo = regs->asc_flags & ASC_FLAGS_FIFO_CNT; - if (fifo < 2) { - printf("asc_intr: target %d, reselect, fifo %d too small for msg\n", - asc->target, fifo); - - goto abort; - } - /* read unencoded SCSI ID and convert to binary */ - msg = regs->asc_fifo & asc->myidmask; - for (id = 0; (msg & 1) == 0; id++) - msg >>= 1; - /* read identify message */ - msg = regs->asc_fifo; -#ifdef DEBUG - if (asc_logp == asc_log) - asc_log[NLOG - 1].msg = msg; - else - asc_logp[-1].msg = msg; -#endif - /* - * TC may have been initialized during a selection attempt. - * Clear it to prevent possible confusion later. - */ - ASC_TC_PUT(regs,0); /* ensure TC clear */ - asc->state = ASC_STATE_BUSY; - asc->target = id; - state = &asc->st[id]; - asc->script = state->script; - state->script = (script_t *)0; - if (!(state->flags & DISCONN)) { - printf("asc_intr: reselect tgt %d, flags 0x%x not disconnected\n", - asc->target, state->flags); - goto abort; - } - state->flags &= ~DISCONN; - regs->asc_syn_p = state->sync_period; - regs->asc_syn_o = state->sync_offset; - regs->asc_cmd = ASC_CMD_MSG_ACPT; - readback(regs->asc_cmd); - goto done; - } - - /* check if we are being selected as a target */ - if (ir & (ASC_INT_SEL | ASC_INT_SEL_ATN)) { - printf("asc_intr: host adaptor selected as target\n"); - goto abort; - } - /* - * 'ir' must be just ASC_INT_FC. - * This is normal if canceling an ASC_ENABLE_SEL. - */ - -done: - tc_mb(); - /* watch out for HW race conditions and setup & hold time violations */ - ir = regs->asc_status; - while (ir != (status = regs->asc_status)) - ir = status; - if (status & ASC_CSR_INT) - goto again; - return 0 ; /* XXX ??? */ - -abort: -#ifdef DEBUG - asc_DumpLog("asc_intr"); -#endif -#if 0 - panic("asc_intr"); -#else - boot(RB_NOSYNC); /* XXX */ -#endif -} - -/* - * All the many little things that the interrupt - * routine might switch to. - */ - -/* ARGSUSED */ -static int -script_nop(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - return (1); -} - -/* ARGSUSED */ -static int -asc_get_status(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register int data; - - /* - * Get the last two bytes in the FIFO. - */ - if ((data = regs->asc_flags & ASC_FLAGS_FIFO_CNT) != 2) { - printf("asc_get_status: cmdreg %x, fifo cnt %d\n", - regs->asc_cmd, data); /* XXX */ -#ifdef DEBUG - asc_DumpLog("get_status"); /* XXX */ -#endif - if (data < 2) { - asc->regs->asc_cmd = ASC_CMD_MSG_ACPT; - readback(asc->regs->asc_cmd); - return (0); - } - do { - data = regs->asc_fifo; - } while ((regs->asc_flags & ASC_FLAGS_FIFO_CNT) > 2); - } - - /* save the status byte */ - asc->st[asc->target].statusByte = data = regs->asc_fifo; -#ifdef DEBUG - if (asc_logp == asc_log) - asc_log[NLOG - 1].msg = data; - else - asc_logp[-1].msg = data; -#endif - - /* get the (presumed) command_complete message */ - if ((data = regs->asc_fifo) == SCSI_COMMAND_COMPLETE) - return (1); - -#ifdef DEBUG - printf("asc_get_status: status %x cmd %x\n", - asc->st[asc->target].statusByte, data); - asc_DumpLog("asc_get_status"); -#endif - return (0); -} - -/* ARGSUSED */ -static int -asc_end(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register ScsiCmd *scsicmd; - register State *state; - register int i, target; - - asc->state = ASC_STATE_IDLE; - target = asc->target; - asc->target = -1; - scsicmd = asc->cmd[target]; - asc->cmd[target] = (ScsiCmd *)0; - state = &asc->st[target]; - timeout_del(&asc->asc_timo); - -#ifdef DEBUG - if (asc_debug > 1) { - printf("asc_end: %s target %d cmd %x err %d resid %d\n", - scsicmd->sd->sd_driver->d_name, target, - scsicmd->cmd[0], state->error, state->buflen); - } -#endif -#ifdef DIAGNOSTIC - if (target < 0 || !scsicmd) - panic("asc_end"); -#endif - - /* look for disconnected devices */ - for (i = 0; i < ASC_NCMD; i++) { - if (!asc->cmd[i] || !(asc->st[i].flags & DISCONN)) - continue; - asc->regs->asc_cmd = ASC_CMD_ENABLE_SEL; - readback(asc->regs->asc_cmd); - asc->state = ASC_STATE_RESEL; - asc->script = &asc_scripts[SCRIPT_RESEL]; - break; - } - -#ifdef USE_NEW_SCSI - if(scsicmd->error == XS_NOERROR && !(state->flags & CHECK_SENSE)) { - if((state->statusByte & ST_MASK) == SCSI_CHECK) { - struct scsi_sense *ss = (void *)&state->cmd; - /* Save return values */ - scsicmd->resid = state->buflen; - scsicmd->status = state->statusByte; - /* Set up sense request command */ - bzero(ss, sizeof(*ss)); - ss->opcode = REQUEST_SENSE; - ss->byte2 = sc_link->lun << 5; - ss->length = sizeof(struct scsi_sense_data); - state->cmdlen = sizeof(*ss); - state->buf = (vm_offset_t)&scsicmd->sense; - state->buflen = sizeof(struct scsi_sense_data); - state->flags |= CHECK_SENSE; - MachFlushDCache(state->buf, state->buflen); - asc->cmd[target] = scsicmd; - asc_startcmd(asc, target); - return(0); - } - } -#endif /*USE_NEW_SCSI*/ - - /* - * Look for another device that is ready. - * May want to keep last one started and increment for fairness - * rather than always starting at zero. - */ - for (i = 0; i < ASC_NCMD; i++) { - /* don't restart a disconnected command */ - if (!asc->cmd[i] || (asc->st[i].flags & DISCONN)) - continue; - asc_startcmd(asc, i); - break; - } - - /* signal device driver that the command is done */ - (*scsicmd->sd->sd_driver->d_done)(scsicmd->unit, state->error, - state->buflen, state->statusByte); - - return (0); -} - -/* ARGSUSED */ -static int -asc_dma_in(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - register int len; - - /* check for previous chunk in buffer */ - if (state->flags & DMA_IN_PROGRESS) { - /* - * Only count bytes that have been copied to memory. - * There may be some bytes in the FIFO if synchonous transfers - * are in progress. - */ - ASC_TC_GET(regs, len); - len = state->dmalen - len; - state->dmalen = len; /* dma_end may need actual length */ - (*asc->dma_end)(asc, state, ASCDMA_READ); - state->buf += len; - state->buflen -= len; - } - - if (!(state->flags & DMA_IN_PROGRESS) && - (regs->asc_flags & ASC_FLAGS_FIFO_CNT) != 0) { - volatile int async_fifo_junk = 0; - - /* - * If the target is asynchronous, the FIFO contains - * a byte of garbage. (see the Mach mk84 53c94 driver, - * where this occurs on tk-50s and exabytes.) - * It also occurs on asynch disks like SCSI-1 disks. - * Recover by reading the byte of junk from the fifo if, - * and only if, the target is async. If the target is - * synch, there is no junk, and reading the fifo - * deadlocks our SCSI state machine. - */ - if (state->sync_offset == 0) - async_fifo_junk = regs->asc_fifo; -#ifdef ASC_DIAGNOSTIC - printf("%s: asc_dma_in: FIFO count %x flags %x sync_offset %d", - asc->sc_dev.dv_xname, regs->asc_flags, - state->flags, state->sync_offset); - if (state->sync_offset != 0) - printf("\n"); - else - printf(" unexpected fifo data %x\n", async_fifo_junk); -#ifdef DEBUG - asc_DumpLog("asc_dma_in"); -#endif /* DEBUG */ -#endif /* ASC_DIAGNOSTIC */ - - } - /* setup to start reading the next chunk */ - len = state->buflen; -#ifdef DEBUG - if (asc_logp == asc_log) - asc_log[NLOG - 1].resid = len; - else - asc_logp[-1].resid = len; -#endif - len = (*asc->dma_start)(asc, state, state->buf, ASCDMA_READ, len, 0); - state->dmalen = len; - ASC_TC_PUT(regs, len); -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_dma_in: buflen %d, len %d\n", state->buflen, len); -#endif - - /* check for next chunk */ - state->flags |= DMA_IN_PROGRESS; - if (len != state->buflen) { - regs->asc_cmd = ASC_CMD_XFER_INFO | ASC_CMD_DMA; - readback(regs->asc_cmd); - asc->script = &asc_scripts[SCRIPT_CONTINUE_IN]; - return (0); - } - return (1); -} - -/* ARGSUSED */ -static int -asc_last_dma_in(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - register int len, fifo; - - ASC_TC_GET(regs, len); - fifo = regs->asc_flags & ASC_FLAGS_FIFO_CNT; -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_last_dma_in: buflen %d dmalen %d tc %d fifo %d\n", - state->buflen, state->dmalen, len, fifo); -#endif - if (fifo) { - /* device must be trying to send more than we expect */ - regs->asc_cmd = ASC_CMD_FLUSH; - readback(regs->asc_cmd); - } - state->flags &= ~DMA_IN_PROGRESS; - len = state->dmalen - len; - state->dmalen = len; /* dma_end may need actual length */ - (*asc->dma_end)(asc, state, ASCDMA_READ); - state->buflen -= len; - - return (1); -} - -/* ARGSUSED */ -static int -asc_resume_in(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - register int len; - - /* setup to start reading the next chunk */ - len = state->buflen; -#ifdef DEBUG - if (asc_logp == asc_log) - asc_log[NLOG - 1].resid = len; - else - asc_logp[-1].resid = len; -#endif - len = (*asc->dma_start)(asc, state, state->buf, ASCDMA_READ, len, 0); - state->dmalen = len; - ASC_TC_PUT(regs, len); -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_resume_in: buflen %d, len %d\n", state->buflen, - len); -#endif - - /* check for next chunk */ - state->flags |= DMA_IN_PROGRESS; - if (len != state->buflen) { - regs->asc_cmd = ASC_CMD_XFER_INFO | ASC_CMD_DMA; - readback(regs->asc_cmd); - asc->script = &asc_scripts[SCRIPT_CONTINUE_IN]; - return (0); - } - return (1); -} - -/* ARGSUSED */ -static int -asc_resume_dma_in(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - register int len, off; - - /* setup to finish reading the current chunk */ - len = state->dmaresid; - off = state->dmalen - len; - if ((off & 1) && state->sync_offset) { - printf("asc_resume_dma_in: odd xfer dmalen %d len %d off %d\n", - state->dmalen, len, off); /* XXX */ - regs->asc_res_fifo = state->buf[off]; - } -#ifdef DEBUG - if (asc_logp == asc_log) - asc_log[NLOG - 1].resid = len; - else - asc_logp[-1].resid = len; -#endif - len = (*asc->dma_start)(asc, state, state->buf + off, ASCDMA_READ, len, off); - ASC_TC_PUT(regs, len); -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_resume_dma_in: buflen %d dmalen %d len %d off %d\n", - state->dmalen, state->buflen, len, off); -#endif - - /* check for next chunk */ - state->flags |= DMA_IN_PROGRESS; - state->flags &= ~DMA_RESUME; - if (state->dmalen != state->buflen) { - regs->asc_cmd = ASC_CMD_XFER_INFO | ASC_CMD_DMA; - readback(regs->asc_cmd); - asc->script = &asc_scripts[SCRIPT_CONTINUE_IN]; - return (0); - } - return (1); -} - -/* ARGSUSED */ -static int -asc_dma_out(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - register int len, fifo; - - if (state->flags & DMA_IN_PROGRESS) { - /* check to be sure previous chunk was finished */ - ASC_TC_GET(regs, len); - fifo = regs->asc_flags & ASC_FLAGS_FIFO_CNT; - if (len || fifo) - printf("asc_dma_out: buflen %d dmalen %d tc %d fifo %d\n", - state->buflen, state->dmalen, len, fifo); /* XXX */ - len += fifo; - len = state->dmalen - len; - state->buf += len; - state->buflen -= len; - } - - /* - * Flush the fifo - sometimes there seems to be something left - * in the fifo. Since the dma output has not been started, - * the fifo is supposed to be empty. - */ - if (regs->asc_flags & ASC_FLAGS_FIFO_CNT) { - while (regs->asc_flags & ASC_FLAGS_FIFO_CNT) - regs->asc_fifo; - } - /* setup for this chunk */ - len = state->buflen; -#ifdef DEBUG - if (asc_logp == asc_log) - asc_log[NLOG - 1].resid = len; - else - asc_logp[-1].resid = len; -#endif - len = (*asc->dma_start)(asc, state, state->buf, ASCDMA_WRITE, len, 0); - state->dmalen = len; - ASC_TC_PUT(regs, len); -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_dma_out: buflen %d, len %d\n", state->buflen, len); -#endif - - /* check for next chunk */ - state->flags |= DMA_IN_PROGRESS; - if (len != state->buflen) { - regs->asc_cmd = ASC_CMD_XFER_INFO | ASC_CMD_DMA; - readback(regs->asc_cmd); - asc->script = &asc_scripts[SCRIPT_CONTINUE_OUT]; - return (0); - } - return (1); -} - -/* ARGSUSED */ -static int -asc_last_dma_out(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - register int len, fifo; - - ASC_TC_GET(regs, len); - fifo = regs->asc_flags & ASC_FLAGS_FIFO_CNT; -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_last_dma_out: buflen %d dmalen %d tc %d fifo %d\n", - state->buflen, state->dmalen, len, fifo); -#endif - if (fifo) { - len += fifo; - regs->asc_cmd = ASC_CMD_FLUSH; - readback(regs->asc_cmd); - printf("asc_last_dma_out: buflen %d dmalen %d tc %d fifo %d\n", - state->buflen, state->dmalen, len, fifo); - } - state->flags &= ~DMA_IN_PROGRESS; - len = state->dmalen - len; - state->buflen -= len; - return (1); -} - -/* ARGSUSED */ -static int -asc_resume_out(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - register int len; - - /* setup for this chunk */ - len = state->buflen; -#ifdef DEBUG - if (asc_logp == asc_log) - asc_log[NLOG - 1].resid = len; - else - asc_logp[-1].resid = len; -#endif - len = (*asc->dma_start)(asc, state, state->buf, ASCDMA_WRITE, len, 0); - state->dmalen = len; - ASC_TC_PUT(regs, len); -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_resume_out: buflen %d, len %d\n", state->buflen, - len); -#endif - - /* check for next chunk */ - state->flags |= DMA_IN_PROGRESS; - if (len != state->buflen) { - regs->asc_cmd = ASC_CMD_XFER_INFO | ASC_CMD_DMA; - readback(regs->asc_cmd); - asc->script = &asc_scripts[SCRIPT_CONTINUE_OUT]; - return (0); - } - return (1); -} - -/* ARGSUSED */ -static int -asc_resume_dma_out(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - register int len, off; - - /* setup to finish writing this chunk */ - len = state->dmaresid; - off = state->dmalen - len; - if (off & 1) { - printf("asc_resume_dma_out: odd xfer dmalen %d len %d off %d\n", - state->dmalen, len, off); /* XXX */ - regs->asc_fifo = state->buf[off]; - off++; - len--; - } -#ifdef DEBUG - if (asc_logp == asc_log) - asc_log[NLOG - 1].resid = len; - else - asc_logp[-1].resid = len; -#endif - /* XXX may result in redundant copy of data */ - len = (*asc->dma_start)(asc, state, state->buf + off, ASCDMA_WRITE, len, off); - ASC_TC_PUT(regs, len); -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_resume_dma_out: buflen %d dmalen %d len %d off %d\n", - state->dmalen, state->buflen, len, off); -#endif - - /* check for next chunk */ - state->flags |= DMA_IN_PROGRESS; - state->flags &= ~DMA_RESUME; - if (state->dmalen != state->buflen) { - regs->asc_cmd = ASC_CMD_XFER_INFO | ASC_CMD_DMA; - readback(regs->asc_cmd); - asc->script = &asc_scripts[SCRIPT_CONTINUE_OUT]; - return (0); - } - return (1); -} - -/* ARGSUSED */ -static int -asc_sendsync(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - - /* send the extended synchronous negotiation message */ - regs->asc_fifo = SCSI_EXTENDED_MSG; - tc_mb(); - regs->asc_fifo = 3; - tc_mb(); - regs->asc_fifo = SCSI_SYNCHRONOUS_XFER; - tc_mb(); - regs->asc_fifo = SCSI_MIN_PERIOD; - tc_mb(); - regs->asc_fifo = ASC_MAX_OFFSET; - /* state to resume after we see the sync reply message */ - state->script = asc->script + 2; - state->msglen = 0; - return (1); -} - -/* ARGSUSED */ -static int -asc_replysync(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_replysync: %x %x\n", - asc_to_scsi_period[state->sync_period] * asc->tb_ticks, - state->sync_offset); -#endif - /* send synchronous transfer in response to a request */ - regs->asc_fifo = SCSI_EXTENDED_MSG; - tc_mb(); - regs->asc_fifo = 3; - tc_mb(); - regs->asc_fifo = SCSI_SYNCHRONOUS_XFER; - tc_mb(); - regs->asc_fifo = asc_to_scsi_period[state->sync_period] * asc->tb_ticks; - tc_mb(); - regs->asc_fifo = state->sync_offset; - regs->asc_cmd = ASC_CMD_XFER_INFO; - readback(regs->asc_cmd); - - /* return to the appropriate script */ - if (!state->script) { -#ifdef DEBUG - asc_DumpLog("asc_replsync"); -#endif - panic("asc_replysync"); - } - asc->script = state->script; - state->script = (script_t *)0; - return (0); -} - -/* ARGSUSED */ -static int -asc_msg_in(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - register asc_regmap_t *regs = asc->regs; - register State *state = &asc->st[asc->target]; - register int msg; - int i; - - /* read one message byte */ - msg = regs->asc_fifo; -#ifdef DEBUG - if (asc_logp == asc_log) - asc_log[NLOG - 1].msg = msg; - else - asc_logp[-1].msg = msg; -#endif - - /* check for multi-byte message */ - if (state->msglen != 0) { - /* first byte is the message length */ - if (state->msglen < 0) { - state->msglen = msg; - return (1); - } - if (state->msgcnt >= state->msglen) { - printf("asc: msg_in too big, msgcnt %d msglen %d\n", - state->msgcnt, state->msglen); - goto abort; - } - state->msg_in[state->msgcnt++] = msg; - - /* did we just read the last byte of the message? */ - if (state->msgcnt != state->msglen) - return (1); - - /* process an extended message */ -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_msg_in: msg %x %x %x\n", - state->msg_in[0], - state->msg_in[1], - state->msg_in[2]); -#endif - switch (state->msg_in[0]) { - case SCSI_SYNCHRONOUS_XFER: - state->flags |= DID_SYNC; - state->sync_offset = state->msg_in[2]; - - /* convert SCSI period to ASC period */ - i = state->msg_in[1] / asc->tb_ticks; - if (i < asc->min_period) - i = asc->min_period; - else if (i >= asc->max_period) { - /* can't do sync transfer, period too long */ - printf("%s: SCSI device %d: sync xfer period too long (%d)\n", - asc->sc_dev.dv_xname, asc->target, i); - i = asc->max_period; - state->sync_offset = 0; - } - if ((i * asc->tb_ticks) != state->msg_in[1]) - i++; - state->sync_period = i & 0x1F; - - /* - * If this is a request, check minimums and - * send back an acknowledge. - */ - if (!(state->flags & TRY_SYNC)) { - regs->asc_cmd = ASC_CMD_SET_ATN; - readback(regs->asc_cmd); - - if (state->sync_period < asc->min_period) - state->sync_period = - asc->min_period; - if (state->sync_offset > ASC_MAX_OFFSET) - state->sync_offset = - ASC_MAX_OFFSET; - asc->script = &asc_scripts[SCRIPT_REPLY_SYNC]; - regs->asc_syn_p = state->sync_period; - readback(regs->asc_syn_p); - regs->asc_syn_o = state->sync_offset; - readback(regs->asc_syn_o); - regs->asc_cmd = ASC_CMD_MSG_ACPT; - readback(regs->asc_cmd); - return (0); - } - - regs->asc_syn_p = state->sync_period; - readback(regs->asc_syn_p); - regs->asc_syn_o = state->sync_offset; - readback(regs->asc_syn_o); - goto done; - - default: - printf("%s: SCSI device %d: rejecting extended message 0x%x\n", - asc->sc_dev.dv_xname, asc->target, - state->msg_in[0]); - goto reject; - } - } - - /* process first byte of a message */ -#ifdef DEBUG - if (asc_debug > 2) - printf("asc_msg_in: msg %x\n", msg); -#endif - switch (msg) { -#if 0 - case SCSI_MESSAGE_REJECT: - printf(" did not like SYNCH xfer "); /* XXX */ - state->flags |= DID_SYNC; - regs->asc_cmd = ASC_CMD_MSG_ACPT; - readback(regs->asc_cmd); - status = asc_wait(regs, ASC_CSR_INT); - ir = regs->asc_intr; - /* some just break out here, some dont */ - if (ASC_PHASE(status) == SCSI_PHASE_MSG_OUT) { - regs->asc_fifo = SCSI_ABORT; - regs->asc_cmd = ASC_CMD_XFER_INFO; - readback(regs->asc_cmd); - status = asc_wait(regs, ASC_CSR_INT); - ir = regs->asc_intr; - } - if (ir & ASC_INT_DISC) { - asc_end(asc, status, 0, ir); - return (0); - } - goto status; -#endif /*0*/ - - case SCSI_EXTENDED_MSG: /* read an extended message */ - /* setup to read message length next */ - state->msglen = -1; - state->msgcnt = 0; - return (1); - - case SCSI_NO_OP: - break; - - case SCSI_SAVE_DATA_POINTER: - /* expect another message */ - return (1); - - case SCSI_RESTORE_POINTERS: - /* - * Need to do the following if resuming synchonous data in - * on an odd byte boundary. - regs->asc_cnfg2 |= ASC_CNFG2_RFB; - */ - break; - - case SCSI_DISCONNECT: - if (state->flags & DISCONN) { - printf("asc: disconnected target %d disconnecting again\n", - asc->target); - goto abort; - } - state->flags |= DISCONN; - regs->asc_cmd = ASC_CMD_MSG_ACPT; - readback(regs->asc_cmd); - asc->script = &asc_scripts[SCRIPT_DISCONNECT]; - return (0); - - default: - printf("%s: SCSI device %d: rejecting message 0x%x\n", - asc->sc_dev.dv_xname, asc->target, msg); - reject: - /* request a message out before acknowledging this message */ - state->msg_out = SCSI_MESSAGE_REJECT; - regs->asc_cmd = ASC_CMD_SET_ATN; - readback(regs->asc_cmd); - } - -done: - /* return to original script */ - regs->asc_cmd = ASC_CMD_MSG_ACPT; - readback(regs->asc_cmd); - if (!state->script) { - printf("asc_msg_in: target %d, no script?\n", asc->target); - - abort: -#ifdef DEBUG - asc_DumpLog("asc_msg_in"); -#endif - panic("asc_msg_in"); - } - asc->script = state->script; - state->script = (script_t *)0; - return (0); -} - -/* ARGSUSED */ -static int -asc_disconnect(asc, status, ss, ir) - register asc_softc_t asc; - register int status, ss, ir; -{ - int i; -#ifdef DIAGNOSTIC - /* later Mach driver checks for late asych disconnect here. */ - register State *state = &asc->st[asc->target]; - - if (!(state->flags & DISCONN)) { - printf("asc_disconnect: device %d: DISCONN not set!\n", - asc->target); - } -#endif /*DIAGNOSTIC*/ - asc->target = -1; - asc->state = ASC_STATE_RESEL; - /* - * Look for another device that is ready. - * May want to keep last one started and increment for fairness - * rather than always starting at zero. - */ - for (i = 0; i < ASC_NCMD; i++) { - /* don't restart a disconnected command */ - if (!asc->cmd[i] || asc->st[i].flags & DISCONN) - continue; - asc_startcmd(asc, i); - return (0); - } - return (1); -} - -void -asc_timeout(arg) - void *arg; -{ - int s = splbio(); - ScsiCmd *scsicmd = (ScsiCmd *) arg; - - printf("asc_timeout: cmd %p drive %d\n", scsicmd, scsicmd->sd->sd_drive); -#ifdef DEBUG - asc_DumpLog("asc_timeout"); -#endif -#if 0 - panic("asc_timeout"); -#else - boot(RB_NOSYNC); /* XXX */ -#endif - splx(s); -} - - -#ifdef DEBUG -void -asc_DumpLog(str) - char *str; -{ - register struct asc_log *lp; - register u_int status; - - printf("asc: %s: cmd %x bn %d cnt %d\n", str, asc_debug_cmd, - asc_debug_bn, asc_debug_sz); - lp = asc_logp; - do { - status = lp->status; - printf("asc%d tgt %d status %x ss %x ir %x cond %d:%x msg %x resid %d\n", - status >> 24, - lp->target, - (status >> 16) & 0xFF, - (status >> 8) & 0xFF, - status & 0XFF, - lp->state, - asc_scripts[lp->state].condition, - lp->msg, lp->resid); - if (++lp >= &asc_log[NLOG]) - lp = asc_log; - } while (lp != asc_logp); -} -#endif /*DEBUG*/ - -#endif /* NASC > 0 */ diff --git a/sys/dev/tc/asc_ioasic.c b/sys/dev/tc/asc_ioasic.c deleted file mode 100644 index fde58e9355f..00000000000 --- a/sys/dev/tc/asc_ioasic.c +++ /dev/null @@ -1,330 +0,0 @@ -/* $OpenBSD: asc_ioasic.c,v 1.5 2001/06/25 15:27:59 aaron Exp $ */ -/* $NetBSD: asc_ioasic.c,v 1.12 1998/01/12 09:51:30 thorpej Exp $ */ - -/* - * Copyright 1996 The Board of Trustees of The Leland Stanford - * Junior University. All Rights Reserved. - * - * Permission to use, copy, modify, and distribute this - * software and its documentation for any purpose and without - * fee is hereby granted, provided that the above copyright - * notice appear in all copies. Stanford University - * makes no representations about the suitability of this - * software for any purpose. It is provided "as is" without - * express or implied warranty. - * - */ -#define USE_CACHED_BUFFER 0 - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/timeout.h> -#include <sys/device.h> -#include <dev/tc/tcvar.h> -#include <dev/tc/ioasicvar.h> -#include <machine/autoconf.h> - -#include <pmax/dev/device.h> /* XXX */ -#include <pmax/dev/scsi.h> /* XXX */ - -#include <pmax/dev/ascreg.h> /* XXX */ -#include <dev/tc/ascvar.h> - -#include <machine/cpu.h> -#include <machine/bus.h> /* bus, cache consistency, etc */ - -/*XXX*/ -#include <pmax/pmax/asic.h> /* XXX ioasic register defs? */ -#include <pmax/pmax/kmin.h> /* XXX ioasic register defs? */ -#include <pmax/pmax/pmaxtype.h> -extern int pmax_boardtype; - -extern vm_offset_t kvtophys __P((vm_offset_t)); - -/* - * Autoconfiguration data for config. - */ -int asc_ioasic_match __P((struct device *, void *, void *)); -void asc_ioasic_attach __P((struct device *, struct device *, void *)); - -struct cfattach asc_ioasic_ca = { - sizeof(struct asc_softc), asc_ioasic_match, asc_ioasic_attach -}; - -#ifdef notdef -extern struct cfdriver asc_cd; -#endif - -/* - * DMA callback declarations - */ - -#ifdef ASC_IOASIC_BOUNCE -extern u_long asc_iomem; -#endif -static int -asic_dma_start __P((asc_softc_t asc, State *state, caddr_t cp, int flag, - int len, int off)); - -static void -asic_dma_end __P((asc_softc_t asc, State *state, int flag)); - -int -asc_ioasic_match(parent, match, aux) - struct device *parent; - void *match; - void *aux; -{ - struct ioasicdev_attach_args *d = aux; - void *ascaddr; - - if (strncmp(d->iada_modname, "asc", TC_ROM_LLEN) && - strncmp(d->iada_modname, "PMAZ-AA ", TC_ROM_LLEN)) - return (0); - - /* probe for chip */ - ascaddr = (void*)d->iada_addr; - if (tc_badaddr(ascaddr + ASC_OFFSET_53C94)) - return (0); - - return (1); -} - -void -asc_ioasic_attach(parent, self, aux) - struct device *parent; - struct device *self; - void *aux; -{ - register struct ioasicdev_attach_args *d = aux; - register asc_softc_t asc = (asc_softc_t) self; -#ifdef ASC_IOASIC_BOUNCE - u_char *buff; - int i; -#endif - - void *ascaddr; - int unit; - - ascaddr = (void*)MIPS_PHYS_TO_KSEG1(d->iada_addr); - unit = asc->sc_dev.dv_unit; - - /* - * Initialize hw descriptor, cache some pointers - */ - asc->regs = (asc_regmap_t *)(ascaddr + ASC_OFFSET_53C94); - - /* - * Set up machine dependencies. - * (1) how to do dma - * (2) timing based on turbochannel frequency - */ - -#ifdef ASC_IOASIC_BOUNCE -#if USE_CACHED_BUFFER - /* XXX Use cached address for DMA buffer to increase raw read speed */ - buff = (u_char *)MIPS_PHYS_TO_KSEG0(asc_iomem); -#else - buff = (u_char *)MIPS_PHYS_TO_KSEG1(asc_iomem); -#endif /* USE_CACHED_BUFFER */ - /* - * Statically partition the DMA buffer between targets. - * This way we will eventually be able to attach/detach - * drives on-fly. And 18k/target is plenty for normal use. - */ - - /* - * Give each target its own DMA buffer region. - * We may want to try ping ponging buffers later. - */ - for (i = 0; i < ASC_NCMD; i++) - asc->st[i].dmaBufAddr = buff + 8192 * i; - -#endif /* ASC_IOASIC_BOUNCE */ - *((volatile int *)IOASIC_REG_SCSI_DMAPTR(ioasic_base)) = -1; - *((volatile int *)IOASIC_REG_SCSI_DMANPTR(ioasic_base)) = -1; - *((volatile int *)IOASIC_REG_SCSI_SCR(ioasic_base)) = 0; - asc->dma_start = asic_dma_start; - asc->dma_end = asic_dma_end; - - /* digital meters show IOASIC 53c94s are clocked at approx 25MHz */ - ascattach(asc, ASC_SPEED_25_MHZ); - - /* tie pseudo-slot to device */ - - ioasic_intr_establish(parent, d->iada_cookie, TC_IPL_BIO, - asc_intr, asc); -} - - -/* - * DMA handling routines. For a turbochannel device, just set the dmar. - * For the I/O ASIC, handle the actual DMA interface. - */ -static int -asic_dma_start(asc, state, cp, flag, len, off) - asc_softc_t asc; - State *state; - caddr_t cp; - int flag; - int len; - int off; -{ - register volatile u_int *ssr = (volatile u_int *) - IOASIC_REG_CSR(ioasic_base); - u_int phys, nphys; - - /* stop DMA engine first */ - *ssr &= ~IOASIC_CSR_DMAEN_SCSI; - *((volatile int *)IOASIC_REG_SCSI_SCR(ioasic_base)) = 0; - -#ifndef ASC_IOASIC_BOUNCE - /* restrict len to the maximum the IOASIC can transfer */ - if (len > ((caddr_t)mips_trunc_page(cp + NBPG * 2) - cp)) - len = (caddr_t)mips_trunc_page(cp + NBPG * 2) - cp; - - /* If R4K, writeback and invalidate the buffer */ - if (CPUISMIPS3) - mips3_HitFlushDCache((vm_offset_t)cp, len); - - /* Get physical address of buffer start, no next phys addr */ - phys = (u_int)kvtophys((vm_offset_t)cp); - nphys = -1; - - /* Compute 2nd DMA pointer only if next page is part of this I/O */ - if ((NBPG - (phys & (NBPG - 1))) < len) { - cp = (caddr_t)mips_trunc_page(cp + NBPG); - nphys = (u_int)kvtophys((vm_offset_t)cp); - } - - /* If not R4K, need to invalidate cache lines for both physical segments */ - if (!CPUISMIPS3 && flag == ASCDMA_READ) { - MachFlushDCache(MIPS_PHYS_TO_KSEG0(phys), - nphys == 0xffffffff ? len : NBPG - (phys & (NBPG - 1))); - if (nphys != 0xffffffff) - MachFlushDCache(MIPS_PHYS_TO_KSEG0(nphys), - NBPG); /* XXX */ - } -#else /* ASC_IOASIC_BOUNCE */ - /* restrict len to the maximum the IOASIC can transfer */ - if (len > ((caddr_t)mips_trunc_page(state->dmaBufAddr + off + NBPG * 2) - (caddr_t)(state->dmaBufAddr + off))) - len = (caddr_t)mips_trunc_page(state->dmaBufAddr + off + NBPG * 2) - (caddr_t)(state->dmaBufAddr + off); - - if (flag == ASCDMA_WRITE) - bcopy(cp, state->dmaBufAddr + off, len); - cp = state->dmaBufAddr + off; -#if USE_CACHED_BUFFER -#ifdef MIPS3 - /* If R4K, need to writeback the bounce buffer */ - if (CPUISMIPS3) - mips3_HitFlushDCache((vm_offset_t)cp, len); -#endif /* MIPS3 */ - phys = MIPS_KSEG0_TO_PHYS(cp); - cp = (caddr_t)mips_trunc_page(cp + NBPG); - nphys = MIPS_KSEG0_TO_PHYS(cp); -#else - phys = MIPS_KSEG1_TO_PHYS(cp); - cp = (caddr_t)mips_trunc_page(cp + NBPG); - nphys = MIPS_KSEG1_TO_PHYS(cp); -#endif /* USE_CACHED_BUFFER */ -#endif /* ASC_IOASIC_BOUNCE */ - -#ifdef notyet - asc->dma_next = cp; - asc->dma_xfer = state->dmalen - (nphys - phys); -#endif - - *(volatile int *)IOASIC_REG_SCSI_DMAPTR(ioasic_base) = - IOASIC_DMA_ADDR(phys); - *(volatile int *)IOASIC_REG_SCSI_DMANPTR(ioasic_base) = - IOASIC_DMA_ADDR(nphys); - if (flag == ASCDMA_READ) - *ssr |= IOASIC_CSR_SCSI_DIR | IOASIC_CSR_DMAEN_SCSI; - else - *ssr = (*ssr & ~IOASIC_CSR_SCSI_DIR) | IOASIC_CSR_DMAEN_SCSI; - wbflush(); - return (len); -} - -static void -asic_dma_end(asc, state, flag) - asc_softc_t asc; - State *state; - int flag; -{ - register volatile u_int *ssr = (volatile u_int *) - IOASIC_REG_CSR(ioasic_base); - register volatile u_int *dmap = (volatile u_int *) - IOASIC_REG_SCSI_DMAPTR(ioasic_base); - register u_short *to; - register int w; - int nb; - - *ssr &= ~IOASIC_CSR_DMAEN_SCSI; -#if USE_CACHED_BUFFER /* XXX - Should uncached address always be used? */ - to = (u_short *)MIPS_PHYS_TO_KSEG0(*dmap >> 3); -#else - to = (u_short *)MIPS_PHYS_TO_KSEG1(*dmap >> 3); -#endif - *dmap = -1; - *((volatile int *)IOASIC_REG_SCSI_DMANPTR(ioasic_base)) = -1; - wbflush(); - - if (flag == ASCDMA_READ) { -#if !defined(ASC_IOASIC_BOUNCE) && USE_CACHED_BUFFER - /* Invalidate cache for the buffer */ -#ifdef MIPS3 - if (CPUISMIPS3) - MachFlushDCache(MIPS_KSEG1_TO_PHYS(state->dmaBufAddr), - state->dmalen); - else -#endif /* MIPS3 */ - MachFlushDCache(MIPS_PHYS_TO_KSEG0( - MIPS_KSEG1_TO_PHYS(state->dmaBufAddr)), - state->dmalen); -#endif /* USE_CACHED_BUFFER */ - if ( (nb = *((int *)IOASIC_REG_SCSI_SCR(ioasic_base))) != 0) { - /* pick up last upto6 bytes, sigh. */ - - /* Last byte really xferred is.. */ - w = *(int *)IOASIC_REG_SCSI_SDR0(ioasic_base); - *to++ = w; - if (--nb > 0) { - w >>= 16; - *to++ = w; - } - if (--nb > 0) { - w = *(int *)IOASIC_REG_SCSI_SDR1(ioasic_base); - *to++ = w; - } - } -#ifdef ASC_IOASIC_BOUNCE - bcopy(state->dmaBufAddr, state->buf, state->dmalen); -#endif - } -} - -#ifdef notdef -/* - * Called by asic_intr() for scsi dma pointer update interrupts. - */ -void -asc_dma_intr() -{ - asc_softc_t asc = &asc_cd.cd_devs[0]; /*XXX*/ - u_int next_phys; - - asc->dma_xfer -= NBPG; - if (asc->dma_xfer <= -NBPG) { - volatile u_int *ssr = (volatile u_int *) - IOASIC_REG_CSR(ioasic_base); - *ssr &= ~IOASIC_CSR_DMAEN_SCSI; - } else { - asc->dma_next += NBPG; - next_phys = MIPS_KSEG0_TO_PHYS(asc->dma_next); - } - *(volatile int *)IOASIC_REG_SCSI_DMANPTR(ioasic_base) = - IOASIC_DMA_ADDR(next_phys); - wbflush(); -} -#endif /*notdef*/ diff --git a/sys/dev/tc/asc_tc.c b/sys/dev/tc/asc_tc.c deleted file mode 100644 index a47a6299eaf..00000000000 --- a/sys/dev/tc/asc_tc.c +++ /dev/null @@ -1,192 +0,0 @@ -/* $OpenBSD: asc_tc.c,v 1.4 2001/06/25 15:27:59 aaron Exp $ */ -/* $NetBSD: asc_tc.c,v 1.8 1997/10/31 06:29:59 jonathan Exp $ */ - -/* - * Copyright 1996 The Board of Trustees of The Leland Stanford - * Junior University. All Rights Reserved. - * - * Permission to use, copy, modify, and distribute this - * software and its documentation for any purpose and without - * fee is hereby granted, provided that the above copyright - * notice appear in all copies. Stanford University - * makes no representations about the suitability of this - * software for any purpose. It is provided "as is" without - * express or implied warranty. - * - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/timeout.h> -#include <sys/types.h> -#include <sys/device.h> -#include <dev/tc/tcvar.h> -#include <machine/autoconf.h> -#include <dev/tc/ioasicvar.h> - -#include <pmax/dev/device.h> /* XXX */ -#include <pmax/dev/scsi.h> /* XXX */ - -#include <pmax/dev/ascreg.h> /* XXX */ -#include <dev/tc/ascvar.h> - -/*XXX*/ - - -/* - * Autoconfiguration data for config. - */ -int asc_tc_match __P((struct device *, void *, void *)); -void asc_tc_attach __P((struct device *, struct device *, void *)); - -struct cfattach asc_tc_ca = { - sizeof(struct asc_softc), asc_tc_match, asc_tc_attach -}; - -/* - * DMA callbacks - */ - -static int -tc_dma_start __P((struct asc_softc *asc, struct scsi_state *state, - caddr_t cp, int flag, int len, int off)); - -static void -tc_dma_end __P((struct asc_softc *asc, struct scsi_state *state, - int flag)); - - -int -asc_tc_match(parent, match, aux) - struct device *parent; - void *match; - void *aux; -{ - struct tc_attach_args *t = aux; - void *ascaddr; - - if (strncmp(t->ta_modname, "PMAZ-AA ", TC_ROM_LLEN)) - return (0); - - ascaddr = (void*)t->ta_addr; - - if (tc_badaddr(ascaddr + ASC_OFFSET_53C94)) - return (0); - - return (1); -} - - - -void -asc_tc_attach(parent, self, aux) - struct device *parent; - struct device *self; - void *aux; -{ - register struct tc_attach_args *t = aux; - register asc_softc_t asc = (asc_softc_t) self; - u_char *buff; - int i, speed; - - void *ascaddr; - int unit; - - /* Use uncached address for chip registers. */ - ascaddr = (void*)MIPS_PHYS_TO_KSEG1(t->ta_addr); - unit = asc->sc_dev.dv_unit; - - /* - * Initialize hw descriptor, cache some pointers - */ - asc->regs = (asc_regmap_t *)(ascaddr + ASC_OFFSET_53C94); - - /* - * Set up machine dependencies. - * (1) how to do dma - * (2) timing based on turbochannel frequency - */ - - /* - * Fall through for turbochannel option. - */ - asc->dmar = (volatile int *)(ascaddr + ASC_OFFSET_DMAR); - buff = (u_char *)(ascaddr + ASC_OFFSET_RAM); - - /* - * Statically partition the DMA buffer between targets. - * This way we will eventually be able to attach/detach - * drives on-fly. And 18k/target is plenty for normal use. - */ - - /* - * Give each target its own DMA buffer region. - * We may want to try ping ponging buffers later. - */ - for (i = 0; i < ASC_NCMD; i++) - asc->st[i].dmaBufAddr = buff + PER_TGT_DMA_SIZE * i; - - asc->dma_start = tc_dma_start; - asc->dma_end = tc_dma_end; - - /* - * Now for timing. The 3max has a 25Mhz tb whereas the 3min and - * maxine are 12.5Mhz. - */ - printf(" (bus speed: %s MHz) ", t->ta_busspeed? "25" : "12.5"); - - switch (t->ta_busspeed) { - case TC_SPEED_25_MHZ: - speed = ASC_SPEED_25_MHZ; - break; - - default: - printf(" (unknown TC speed, assuming 12.5MHz) "); - /* FALLTHROUGH*/ - case TC_SPEED_12_5_MHZ: - speed = ASC_SPEED_12_5_MHZ; - break; - }; - - ascattach(asc, speed); - - /* tie pseudo-slot to device */ - tc_intr_establish(parent, t->ta_cookie, TC_IPL_BIO, - asc_intr, asc); -} - - -/* - * DMA handling routines. For a turbochannel device, just set the dmar. - * For the I/O ASIC, handle the actual DMA interface. - */ -static int -tc_dma_start(asc, state, cp, flag, len, off) - asc_softc_t asc; - State *state; - caddr_t cp; - int flag; - int len; - int off; -{ - - if (len > PER_TGT_DMA_SIZE) - len = PER_TGT_DMA_SIZE; - if (flag == ASCDMA_WRITE) - bcopy(cp, state->dmaBufAddr + off, len); - if (flag == ASCDMA_WRITE) - *asc->dmar = ASC_DMAR_WRITE | ASC_DMA_ADDR(state->dmaBufAddr + off); - else - *asc->dmar = ASC_DMA_ADDR(state->dmaBufAddr + off); - return (len); -} - -static void -tc_dma_end(asc, state, flag) - asc_softc_t asc; - State *state; - int flag; -{ - if (flag == ASCDMA_READ) - bcopy(state->dmaBufAddr, state->buf, state->dmalen); -} diff --git a/sys/dev/tc/ascvar.h b/sys/dev/tc/ascvar.h deleted file mode 100644 index fac62d72ea3..00000000000 --- a/sys/dev/tc/ascvar.h +++ /dev/null @@ -1,93 +0,0 @@ -/* $OpenBSD: ascvar.h,v 1.7 2001/06/25 15:27:59 aaron Exp $ */ -/* $NetBSD: ascvar.h,v 1.4 1997/11/28 18:23:40 mhitch Exp $ */ - - -/* - * State kept for each active SCSI device. - */ -struct script; - -typedef struct scsi_state { - struct script *script; /* saved script while processing error */ - int statusByte; /* status byte returned during STATUS_PHASE */ - int error; /* errno to pass back to device driver */ - u_char *dmaBufAddr; /* DMA buffer address */ - int dmalen; /* amount to transfer in this chunk */ - int dmaresid; /* amount not transferred if chunk suspended */ - int buflen; /* total remaining amount of data to transfer */ - char *buf; /* current pointer within scsicmd->buf */ - int flags; /* see below */ - int msglen; /* number of message bytes to read */ - int msgcnt; /* number of message bytes received */ - u_char sync_period; /* DMA synchronous period */ - u_char sync_offset; /* DMA synchronous xfer offset or 0 if async */ - u_char msg_out; /* next MSG_OUT byte to send */ - u_char msg_in[16]; /* buffer for multibyte messages */ -} State; - -/* state flags */ -#define DISCONN 0x001 /* true if currently disconnected from bus */ -#define DMA_IN_PROGRESS 0x002 /* true if data DMA started */ -#define DMA_IN 0x004 /* true if reading from SCSI device */ -#define DMA_RESUME 0x08 /* true if DMA was interrupted by disc. */ -#define DMA_OUT 0x010 /* true if writing to SCSI device */ -#define DID_SYNC 0x020 /* true if synchronous offset was negotiated */ -#define TRY_SYNC 0x040 /* true if try neg. synchronous offset */ -#define PARITY_ERR 0x080 /* true if parity error seen */ -#define CHECK_SENSE 0x100 /* true if doing sense command */ - - -/* - * State kept for each active SCSI host interface (53C94). - */ - -struct asc_softc { - struct device sc_dev; /* us as a device */ - asc_regmap_t *regs; /* chip address */ - volatile int *dmar; /* DMA address register address */ - int sc_id; /* SCSI ID of this interface */ - int myidmask; /* ~(1 << myid) */ - int state; /* current SCSI connection state */ - int target; /* target SCSI ID if busy */ - struct script *script; /* next expected interrupt & action */ - ScsiCmd *cmd[ASC_NCMD]; /* active command indexed by SCSI ID */ - State st[ASC_NCMD]; /* state info for each active command */ - /* Start dma routine */ - int (*dma_start) __P((struct asc_softc *asc, - struct scsi_state *state, - caddr_t cp, int flag, int len, int off)); - /* End dma routine */ - void (*dma_end) __P((struct asc_softc *asc, - struct scsi_state *state, int flag)); - - u_char *dma_next; - int dma_xfer; /* Dma len still to go */ - int min_period; /* Min transfer period clk/byte */ - int max_period; /* Max transfer period clk/byte */ - int ccf; /* CCF, whatever that really is? */ - int timeout_250; /* 250ms timeout */ - int tb_ticks; /* 4ns. ticks/tb channel ticks */ - struct timeout asc_timo; -#ifdef USE_NEW_SCSI - struct scsi_link sc_link; /* scsipi link struct */ -#endif -}; -typedef struct asc_softc *asc_softc_t; - -#define ASC_STATE_IDLE 0 /* idle state */ -#define ASC_STATE_BUSY 1 /* selecting or currently connected */ -#define ASC_STATE_TARGET 2 /* currently selected as target */ -#define ASC_STATE_RESEL 3 /* currently waiting for reselect */ - - -#define ASC_SPEED_25_MHZ 250 -#define ASC_SPEED_12_5_MHZ 125 - -void ascattach __P((struct asc_softc *asc, int bus_speed)); -int asc_intr __P ((void *asc)); - -/* - * Dma operations. - */ -#define ASCDMA_READ 1 -#define ASCDMA_WRITE 2 diff --git a/sys/dev/tc/if_le_ibus.c b/sys/dev/tc/if_le_ibus.c deleted file mode 100644 index 6f2420e428d..00000000000 --- a/sys/dev/tc/if_le_ibus.c +++ /dev/null @@ -1,193 +0,0 @@ -/* $OpenBSD: if_le_ibus.c,v 1.3 1998/09/16 22:41:21 jason Exp $ */ -/* $NetBSD: if_le_ibus.c,v 1.3 1996/05/20 23:19:16 jonathan Exp $ */ - -/* - * Copyright 1996 The Board of Trustees of The Leland Stanford - * Junior University. All Rights Reserved. - * - * Permission to use, copy, modify, and distribute this - * software and its documentation for any purpose and without - * fee is hereby granted, provided that the above copyright - * notice appear in all copies. Stanford University - * makes no representations about the suitability of this - * software for any purpose. It is provided "as is" without - * express or implied warranty. - * - * This driver was contributed by Jonathan Stone. - */ - -/* - * LANCE on Decstation kn01/kn220(?) baseboard. - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/mbuf.h> -#include <sys/syslog.h> -#include <sys/socket.h> -#include <sys/device.h> - -#include <net/if.h> -#include <net/if_media.h> - -#ifdef INET -#include <netinet/in.h> -#include <netinet/if_ether.h> -#endif - -#include <dev/ic/am7990reg.h> -#include <dev/ic/am7990var.h> - -#include <dev/tc/if_levar.h> -#include <dev/tc/tcvar.h> -#include <machine/autoconf.h> -#include <pmax/pmax/kn01.h> -#include <pmax/pmax/kn01var.h> - -extern struct cfdriver mainbus_cd; /* should be in header but where? */ - -extern void le_dec_copytobuf_gap2 __P((struct am7990_softc *, void *, - int, int)); -extern void le_dec_copyfrombuf_gap2 __P((struct am7990_softc *, void *, - int, int)); - -hide void le_dec_zerobuf_gap2 __P((struct am7990_softc *, int, int)); - - -int le_pmax_match __P((struct device *, void *, void *)); -void le_pmax_attach __P((struct device *, struct device *, void *)); - -struct cfattach le_pmax_ca = { - sizeof(struct le_softc), le_pmax_match, le_pmax_attach -}; - - -int -le_pmax_match(parent, match, aux) - struct device *parent; - void *match, *aux; -{ - if (parent->dv_cfdata->cf_driver == &mainbus_cd) { - struct confargs *d = aux; - if (strcmp("lance", d->ca_name) == 0) - return (1); - } - return (0); -} - -void -le_pmax_attach(parent, self, aux) - struct device *parent, *self; - void *aux; -{ - register struct le_softc *lesc = (void *)self; - register struct am7990_softc *sc = &lesc->sc_am7990; - register u_char *cp; - register struct confargs *ca = aux; - - /* - * It's on the baseboard, with a dedicated interrupt line. - */ - lesc->sc_r1 = (struct lereg1 *)(ca->ca_addr); -/*XXX*/ sc->sc_mem = (void *)TC_PHYS_TO_UNCACHED(0x19000000); -/*XXX*/ cp = (u_char *)(TC_PHYS_TO_UNCACHED(KN01_SYS_CLOCK) + 1); - - sc->sc_copytodesc = le_dec_copytobuf_gap2; - sc->sc_copyfromdesc = le_dec_copyfrombuf_gap2; - sc->sc_copytobuf = le_dec_copytobuf_gap2; - sc->sc_copyfrombuf = le_dec_copyfrombuf_gap2; - sc->sc_zerobuf = le_dec_zerobuf_gap2; - - dec_le_common_attach(sc, cp); - /* XXX more thought about ca->slotpri */ - kn01_intr_establish(parent, (void*)ca->ca_slotpri, TC_IPL_NET, - am7990_intr, sc); -} - -/* - * gap2: two bytes of data followed by two bytes of pad. - * - * Buffers must be 4-byte aligned. The code doesn't worry about - * doing an extra byte. - */ - -void -le_dec_copytobuf_gap2(sc, fromv, boff, len) - struct am7990_softc *sc; - void *fromv; - int boff; - register int len; -{ - volatile caddr_t buf = sc->sc_mem; - register caddr_t from = fromv; - register volatile u_int16_t *bptr; - - if (boff & 0x1) { - /* handle unaligned first byte */ - bptr = ((volatile u_int16_t *)buf) + (boff - 1); - *bptr = (*from++ << 8) | (*bptr & 0xff); - bptr += 2; - len--; - } else - bptr = ((volatile u_int16_t *)buf) + boff; - while (len > 1) { - *bptr = (from[1] << 8) | (from[0] & 0xff); - bptr += 2; - from += 2; - len -= 2; - } - if (len == 1) - *bptr = (u_int16_t)*from; -} - -void -le_dec_copyfrombuf_gap2(sc, tov, boff, len) - struct am7990_softc *sc; - void *tov; - int boff, len; -{ - volatile caddr_t buf = sc->sc_mem; - register caddr_t to = tov; - register volatile u_int16_t *bptr; - register u_int16_t tmp; - - if (boff & 0x1) { - /* handle unaligned first byte */ - bptr = ((volatile u_int16_t *)buf) + (boff - 1); - *to++ = (*bptr >> 8) & 0xff; - bptr += 2; - len--; - } else - bptr = ((volatile u_int16_t *)buf) + boff; - while (len > 1) { - tmp = *bptr; - *to++ = tmp & 0xff; - *to++ = (tmp >> 8) & 0xff; - bptr += 2; - len -= 2; - } - if (len == 1) - *to = *bptr & 0xff; -} - -void -le_dec_zerobuf_gap2(sc, boff, len) - struct am7990_softc *sc; - int boff, len; -{ - volatile caddr_t buf = sc->sc_mem; - register volatile u_int16_t *bptr; - - if ((unsigned)boff & 0x1) { - bptr = ((volatile u_int16_t *)buf) + (boff - 1); - *bptr &= 0xff; - bptr += 2; - len--; - } else - bptr = ((volatile u_int16_t *)buf) + boff; - while (len > 0) { - *bptr = 0; - bptr += 2; - len -= 2; - } -} diff --git a/sys/dev/tc/tcvar.h b/sys/dev/tc/tcvar.h index 3be4d7677c8..8d68b170276 100644 --- a/sys/dev/tc/tcvar.h +++ b/sys/dev/tc/tcvar.h @@ -1,4 +1,4 @@ -/* $OpenBSD: tcvar.h,v 1.6 1996/12/08 01:03:07 niklas Exp $ */ +/* $OpenBSD: tcvar.h,v 1.7 2001/06/27 20:23:38 miod Exp $ */ /* $NetBSD: tcvar.h,v 1.7 1996/10/22 21:37:31 cgd Exp $ */ /* @@ -35,23 +35,18 @@ * Definitions for TurboChannel autoconfiguration. */ -#ifdef __alpha__ /* XXX pmax does not yet have machine/bus.h */ #include <machine/bus.h> -#endif #include <dev/tc/tcreg.h> /* * Machine-dependent definitions. */ -#if (alpha + pmax != 1) +#if !defined(__alpha__) ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE. #endif -#if alpha +#ifdef __alpha__ #include <alpha/tc/tc_machdep.h> #endif -#if pmax -#include <machine/tc_machdep.h> -#endif /* * In the long run, the following block will go completely away @@ -74,17 +69,6 @@ ERROR: COMPILING FOR UNSUPPORTED MACHINE, OR MORE THAN ONE. #define TC_IPL_TTY IPL_TTY #define TC_IPL_CLOCK IPL_CLOCK -#else -/* - * On the pmax, we still need the old definitions. - */ -typedef enum { - TC_IPL_NONE, /* block only this interrupt */ - TC_IPL_BIO, /* block disk interrupts */ - TC_IPL_NET, /* block network interrupts */ - TC_IPL_TTY, /* block terminal interrupts */ - TC_IPL_CLOCK, /* block clock interrupts */ -} tc_intrlevel_t; #endif /* |