298 lines
8.7 KiB
C
298 lines
8.7 KiB
C
/* $NetBSD: otgsc.c,v 1.29 2003/08/07 16:26:43 agc Exp $ */
|
|
|
|
/*
|
|
* 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. 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
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1994 Michael L. Hitch
|
|
*
|
|
* 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/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: otgsc.c,v 1.29 2003/08/07 16:26:43 agc Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
#include <dev/scsipi/scsi_all.h>
|
|
#include <dev/scsipi/scsipi_all.h>
|
|
#include <dev/scsipi/scsiconf.h>
|
|
#include <amiga/amiga/device.h>
|
|
#include <amiga/amiga/isr.h>
|
|
#include <amiga/dev/scireg.h>
|
|
#include <amiga/dev/scivar.h>
|
|
#include <amiga/dev/zbusvar.h>
|
|
|
|
void otgscattach(struct device *, struct device *, void *);
|
|
int otgscmatch(struct device *, struct cfdata *, void *);
|
|
|
|
int otgsc_dma_xfer_in(struct sci_softc *dev, int len,
|
|
register u_char *buf, int phase);
|
|
int otgsc_dma_xfer_out(struct sci_softc *dev, int len,
|
|
register u_char *buf, int phase);
|
|
int otgsc_intr(void *);
|
|
|
|
|
|
#ifdef DEBUG
|
|
extern int sci_debug;
|
|
#define QPRINTF(a) if (sci_debug > 1) printf a
|
|
#else
|
|
#define QPRINTF(a)
|
|
#endif
|
|
|
|
extern int sci_data_wait;
|
|
|
|
CFATTACH_DECL(otgsc, sizeof(struct sci_softc),
|
|
otgscmatch, otgscattach, NULL, NULL);
|
|
|
|
/*
|
|
* if we are my Hacker's SCSI board we are here.
|
|
*/
|
|
int
|
|
otgscmatch(struct device *pdp, struct cfdata *cfp, void *auxp)
|
|
{
|
|
struct zbus_args *zap;
|
|
|
|
zap = auxp;
|
|
|
|
/*
|
|
* Check manufacturer and product id.
|
|
*/
|
|
if (zap->manid == 1058 && zap->prodid == 21)
|
|
return(1);
|
|
else
|
|
return(0);
|
|
}
|
|
|
|
void
|
|
otgscattach(struct device *pdp, struct device *dp, void *auxp)
|
|
{
|
|
volatile u_char *rp;
|
|
struct sci_softc *sc = (struct sci_softc *)dp;
|
|
struct zbus_args *zap;
|
|
struct scsipi_adapter *adapt = &sc->sc_adapter;
|
|
struct scsipi_channel *chan = &sc->sc_channel;
|
|
|
|
printf("\n");
|
|
|
|
zap = auxp;
|
|
|
|
sc = (struct sci_softc *)dp;
|
|
rp = (u_char *)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;
|
|
|
|
sc->sc_isr.isr_intr = otgsc_intr;
|
|
sc->sc_isr.isr_arg = sc;
|
|
sc->sc_isr.isr_ipl = 2;
|
|
add_isr(&sc->sc_isr);
|
|
|
|
scireset(sc);
|
|
|
|
/*
|
|
* Fill in the scsipi_adapter.
|
|
*/
|
|
memset(adapt, 0, sizeof(*adapt));
|
|
adapt->adapt_dev = &sc->sc_dev;
|
|
adapt->adapt_nchannels = 1;
|
|
adapt->adapt_openings = 7;
|
|
adapt->adapt_max_periph = 1;
|
|
adapt->adapt_request = sci_scsipi_request;
|
|
adapt->adapt_minphys = sci_minphys;
|
|
|
|
/*
|
|
* Fill in the scsipi_channel.
|
|
*/
|
|
memset(chan, 0, sizeof(*chan));
|
|
chan->chan_adapter = adapt;
|
|
chan->chan_bustype = &scsi_bustype;
|
|
chan->chan_channel = 0;
|
|
chan->chan_ntargets = 8;
|
|
chan->chan_nluns = 8;
|
|
chan->chan_id = 7;
|
|
|
|
/*
|
|
* attach all scsi units on us
|
|
*/
|
|
config_found(dp, chan, scsiprint);
|
|
}
|
|
|
|
int
|
|
otgsc_dma_xfer_in(struct sci_softc *dev, int len, register u_char *buf,
|
|
int phase)
|
|
{
|
|
int wait = sci_data_wait;
|
|
volatile register u_char *sci_dma = dev->sci_data + 0x100;
|
|
volatile register u_char *sci_csr = dev->sci_csr;
|
|
#ifdef DEBUG
|
|
u_char *obp = buf;
|
|
#endif
|
|
|
|
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, *dev->sci_bus_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(struct sci_softc *dev, int len, register u_char *buf,
|
|
int phase)
|
|
{
|
|
int wait = sci_data_wait;
|
|
volatile register u_char *sci_dma = dev->sci_data + 0x100;
|
|
volatile register u_char *sci_csr = dev->sci_csr;
|
|
|
|
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, *dev->sci_bus_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(void *arg)
|
|
{
|
|
struct sci_softc *dev = arg;
|
|
u_char stat;
|
|
|
|
if ((*dev->sci_csr & SCI_CSR_INT) == 0)
|
|
return (1);
|
|
stat = *dev->sci_iack;
|
|
*dev->sci_mode = 0;
|
|
return (1);
|
|
}
|