293 lines
7.2 KiB
C
293 lines
7.2 KiB
C
/* $NetBSD: otgsc.c,v 1.4 1994/10/26 02:04:26 cgd Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1994 Michael L. Hitch
|
|
* Copyright (c) 1982, 1990 The Regents of the University of California.
|
|
* 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 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.
|
|
*
|
|
* @(#)csa12gdma.c
|
|
*/
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
#include <scsi/scsi_all.h>
|
|
#include <scsi/scsiconf.h>
|
|
#include <amiga/amiga/device.h>
|
|
#include <amiga/dev/scireg.h>
|
|
#include <amiga/dev/scivar.h>
|
|
#include <amiga/dev/ztwobusvar.h>
|
|
|
|
int otgscprint __P((void *auxp, char *));
|
|
void otgscattach __P((struct device *, struct device *, void *));
|
|
int otgscmatch __P((struct device *, struct cfdata *, void *));
|
|
|
|
int otgsc_dma_xfer_in __P((struct sci_softc *dev, int len,
|
|
register u_char *buf, int phase));
|
|
int otgsc_dma_xfer_out __P((struct sci_softc *dev, int len,
|
|
register u_char *buf, int phase));
|
|
|
|
struct scsi_adapter otgsc_scsiswitch = {
|
|
sci_scsicmd,
|
|
sci_minphys,
|
|
0, /* no lun support */
|
|
0, /* no lun support */
|
|
sci_adinfo,
|
|
"otgsc",
|
|
};
|
|
|
|
struct scsi_device otgsc_scsidev = {
|
|
NULL, /* use default error handler */
|
|
NULL, /* do not have a start functio */
|
|
NULL, /* have no async handler */
|
|
NULL, /* Use default done routine */
|
|
"otgsc",
|
|
0,
|
|
};
|
|
|
|
#define QPRINTF
|
|
|
|
#ifdef DEBUG
|
|
extern int sci_debug;
|
|
#endif
|
|
|
|
extern int sci_data_wait;
|
|
|
|
struct cfdriver otgsccd = {
|
|
NULL, "otgsc", otgscmatch, otgscattach,
|
|
DV_DULL, sizeof(struct sci_softc), NULL, 0 };
|
|
|
|
/*
|
|
* if we are my Hacker's SCSI board we are here.
|
|
*/
|
|
int
|
|
otgscmatch(pdp, cdp, auxp)
|
|
struct device *pdp;
|
|
struct cfdata *cdp;
|
|
void *auxp;
|
|
{
|
|
struct ztwobus_args *zap;
|
|
|
|
zap = auxp;
|
|
|
|
/*
|
|
* Check manufacturer and product id.
|
|
*/
|
|
if (zap->manid == 1058 && zap->prodid == 21)
|
|
return(1);
|
|
else
|
|
return(0);
|
|
}
|
|
|
|
void
|
|
otgscattach(pdp, dp, auxp)
|
|
struct device *pdp, *dp;
|
|
void *auxp;
|
|
{
|
|
volatile u_char *rp;
|
|
struct sci_softc *sc;
|
|
struct ztwobus_args *zap;
|
|
|
|
printf("\n");
|
|
|
|
zap = auxp;
|
|
|
|
sc = (struct sci_softc *)dp;
|
|
rp = zap->va + 0x2000;
|
|
sc->sci_data = rp;
|
|
sc->sci_odata = rp;
|
|
sc->sci_icmd = rp + 0x10;
|
|
sc->sci_mode = rp + 0x20;
|
|
sc->sci_tcmd = rp + 0x30;
|
|
sc->sci_bus_csr = rp + 0x40;
|
|
sc->sci_sel_enb = rp + 0x40;
|
|
sc->sci_csr = rp + 0x50;
|
|
sc->sci_dma_send = rp + 0x50;
|
|
sc->sci_idata = rp + 0x60;
|
|
sc->sci_trecv = rp + 0x60;
|
|
sc->sci_iack = rp + 0x70;
|
|
sc->sci_irecv = rp + 0x70;
|
|
|
|
sc->dma_xfer_in = otgsc_dma_xfer_in;
|
|
sc->dma_xfer_out = otgsc_dma_xfer_out;
|
|
|
|
scireset(sc);
|
|
|
|
sc->sc_link.adapter_softc = sc;
|
|
sc->sc_link.adapter_targ = 7;
|
|
sc->sc_link.adapter = &otgsc_scsiswitch;
|
|
sc->sc_link.device = &otgsc_scsidev;
|
|
TAILQ_INIT(&sc->sc_xslist);
|
|
|
|
/*
|
|
* attach all scsi units on us
|
|
*/
|
|
config_found(dp, &sc->sc_link, otgscprint);
|
|
}
|
|
|
|
/*
|
|
* print diag if pnp is NULL else just extra
|
|
*/
|
|
int
|
|
otgscprint(auxp, pnp)
|
|
void *auxp;
|
|
char *pnp;
|
|
{
|
|
if (pnp == NULL)
|
|
return(UNCONF);
|
|
return(QUIET);
|
|
}
|
|
|
|
|
|
int
|
|
otgsc_dma_xfer_in (dev, len, buf, phase)
|
|
struct sci_softc *dev;
|
|
int len;
|
|
register u_char *buf;
|
|
int phase;
|
|
{
|
|
int wait = sci_data_wait;
|
|
u_char csr;
|
|
u_char *obp = buf;
|
|
volatile register u_char *sci_dma = dev->sci_data + 0x80;
|
|
volatile register u_char *sci_csr = dev->sci_csr;
|
|
volatile register u_char *sci_icmd = dev->sci_icmd;
|
|
|
|
QPRINTF(("otgsc_dma_in %d, csr=%02x\n", len, *dev->sci_bus_csr));
|
|
|
|
*dev->sci_tcmd = phase;
|
|
*dev->sci_mode |= SCI_MODE_DMA;
|
|
*dev->sci_icmd = 0;
|
|
*dev->sci_irecv = 0;
|
|
while (len > 0) {
|
|
wait = sci_data_wait;
|
|
while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) !=
|
|
(SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) {
|
|
if (!(*sci_csr & SCI_CSR_PHASE_MATCH)
|
|
|| !(*dev->sci_bus_csr & SCI_BUS_BSY)
|
|
|| --wait < 0) {
|
|
#ifdef DEBUG
|
|
if (sci_debug)
|
|
printf("otgsc_dma_in fail: l%d i%x w%d\n",
|
|
len, csr, wait);
|
|
#endif
|
|
*dev->sci_mode &= ~SCI_MODE_DMA;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
*buf++ = *sci_dma;
|
|
len--;
|
|
}
|
|
|
|
QPRINTF(("otgsc_dma_in {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
|
|
len, obp[0], obp[1], obp[2], obp[3], obp[4], obp[5],
|
|
obp[6], obp[7], obp[8], obp[9]));
|
|
|
|
*dev->sci_mode &= ~SCI_MODE_DMA;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
otgsc_dma_xfer_out (dev, len, buf, phase)
|
|
struct sci_softc *dev;
|
|
int len;
|
|
register u_char *buf;
|
|
int phase;
|
|
{
|
|
int wait = sci_data_wait;
|
|
u_char csr;
|
|
u_char *obp = buf;
|
|
volatile register u_char *sci_dma = dev->sci_data + 0x80;
|
|
volatile register u_char *sci_csr = dev->sci_csr;
|
|
volatile register u_char *sci_icmd = dev->sci_icmd;
|
|
|
|
QPRINTF(("otgsc_dma_out %d, csr=%02x\n", len, *dev->sci_bus_csr));
|
|
|
|
QPRINTF(("otgsc_dma_out {%d} %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n",
|
|
len, buf[0], buf[1], buf[2], buf[3], buf[4], buf[5],
|
|
buf[6], buf[7], buf[8], buf[9]));
|
|
|
|
*dev->sci_tcmd = phase;
|
|
*dev->sci_mode |= SCI_MODE_DMA;
|
|
*dev->sci_icmd = SCI_ICMD_DATA;
|
|
*dev->sci_dma_send = 0;
|
|
while (len > 0) {
|
|
wait = sci_data_wait;
|
|
while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) !=
|
|
(SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) {
|
|
if (!(*sci_csr & SCI_CSR_PHASE_MATCH)
|
|
|| !(*dev->sci_bus_csr & SCI_BUS_BSY)
|
|
|| --wait < 0) {
|
|
#ifdef DEBUG
|
|
if (sci_debug)
|
|
printf("otgsc_dma_out fail: l%d i%x w%d\n",
|
|
len, csr, wait);
|
|
#endif
|
|
*dev->sci_mode &= ~SCI_MODE_DMA;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
*sci_dma = *buf++;
|
|
len--;
|
|
}
|
|
|
|
wait = sci_data_wait;
|
|
while ((*sci_csr & (SCI_CSR_DREQ|SCI_CSR_PHASE_MATCH)) ==
|
|
SCI_CSR_PHASE_MATCH && --wait);
|
|
|
|
|
|
*dev->sci_mode &= ~SCI_MODE_DMA;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
otgsc_intr()
|
|
{
|
|
struct sci_softc *dev;
|
|
int i, found;
|
|
u_char stat;
|
|
|
|
found = 0;
|
|
for (i = 0; i < otgsccd.cd_ndevs; i++) {
|
|
dev = otgsccd.cd_devs[i];
|
|
if (dev == NULL)
|
|
continue;
|
|
if ((*dev->sci_csr & SCI_CSR_INT) == 0)
|
|
continue;
|
|
++found;
|
|
stat = *dev->sci_iack;
|
|
*dev->sci_mode = 0;
|
|
}
|
|
return (found);
|
|
}
|