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/* $NecBSD: ct_isa.c,v 1.6 1999/07/26 06:32:01 honda Exp $ */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/ct/ct_isa.c 202161 2010-01-12 17:59:58Z gavin $");
/* $NetBSD$ */
/*-
* [NetBSD for NEC PC-98 series]
* Copyright (c) 1995, 1996, 1997, 1998
* NetBSD/pc98 porting staff. 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#define SCSIBUS_RESCAN
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bio.h>
#include <sys/buf.h>
#include <sys/queue.h>
#include <sys/malloc.h>
#include <sys/device_port.h>
#include <sys/errno.h>
#include <vm/vm.h>
#ifdef __NetBSD__
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/scsipi/scsi_all.h>
#include <dev/scsipi/scsipi_all.h>
#include <dev/scsipi/scsiconf.h>
#include <dev/scsipi/scsi_disk.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <machine/dvcfg.h>
#include <machine/physio_proc.h>
#include <machine/syspmgr.h>
#include <i386/Cbus/dev/scsi_low.h>
#include <dev/ic/wd33c93reg.h>
#include <i386/Cbus/dev/ct/ctvar.h>
#include <i386/Cbus/dev/ct/bshwvar.h>
#endif /* __NetBSD__ */
#ifdef __FreeBSD__
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <machine/md_var.h>
#include <pc98/cbus/cbus.h>
#include <isa/isavar.h>
#include <compat/netbsd/dvcfg.h>
#include <compat/netbsd/physio_proc.h>
#include <cam/scsi/scsi_low.h>
#include <dev/ic/wd33c93reg.h>
#include <dev/ct/ctvar.h>
#include <dev/ct/bshwvar.h>
#endif /* __FreeBSD__ */
#define BSHW_IOSZ 0x08
#define BSHW_IOBASE 0xcc0
#define BSHW_MEMSZ (PAGE_SIZE * 2)
static int ct_isa_match(device_t);
static int ct_isa_attach(device_t);
static int ct_space_map(device_t, struct bshw *,
struct resource **, struct resource **);
static void ct_space_unmap(device_t, struct ct_softc *);
static struct bshw *ct_find_hw(device_t);
static void ct_dmamap(void *, bus_dma_segment_t *, int, int);
static void ct_isa_bus_access_weight(struct ct_bus_access_handle *);
static void ct_isa_dmasync_before(struct ct_softc *);
static void ct_isa_dmasync_after(struct ct_softc *);
struct ct_isa_softc {
struct ct_softc sc_ct;
struct bshw_softc sc_bshw;
};
static struct isa_pnp_id ct_pnp_ids[] = {
{ 0x0100e7b1, "Logitec LHA-301" },
{ 0x110154dc, "I-O DATA SC-98III" },
{ 0x4120acb4, "MELCO IFC-NN" },
{ 0, NULL }
};
static device_method_t ct_isa_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, ct_isa_match),
DEVMETHOD(device_attach, ct_isa_attach),
{ 0, 0 }
};
static driver_t ct_isa_driver = {
"ct", ct_isa_methods, sizeof(struct ct_isa_softc),
};
static devclass_t ct_devclass;
DRIVER_MODULE(ct, isa, ct_isa_driver, ct_devclass, 0, 0);
static int
ct_isa_match(device_t dev)
{
struct bshw *hw;
struct resource *port_res, *mem_res;
struct ct_bus_access_handle ch;
int rv;
if (ISA_PNP_PROBE(device_get_parent(dev), dev, ct_pnp_ids) == ENXIO)
return ENXIO;
switch (isa_get_logicalid(dev)) {
case 0x0100e7b1: /* LHA-301 */
case 0x110154dc: /* SC-98III */
case 0x4120acb4: /* IFC-NN */
/* XXX - force to SMIT mode */
device_set_flags(dev, device_get_flags(dev) | 0x40000);
break;
}
if (isa_get_port(dev) == -1)
bus_set_resource(dev, SYS_RES_IOPORT, 0,
BSHW_IOBASE, BSHW_IOSZ);
if ((hw = ct_find_hw(dev)) == NULL)
return ENXIO;
if (ct_space_map(dev, hw, &port_res, &mem_res) != 0)
return ENXIO;
bzero(&ch, sizeof(ch));
ch.ch_iot = rman_get_bustag(port_res);
ch.ch_ioh = rman_get_bushandle(port_res),
ch.ch_bus_weight = ct_isa_bus_access_weight;
rv = ctprobesubr(&ch, 0, BSHW_DEFAULT_HOSTID,
BSHW_DEFAULT_CHIPCLK, NULL);
if (rv != 0)
{
struct bshw_softc bshw_tab;
struct bshw_softc *bs = &bshw_tab;
memset(bs, 0, sizeof(*bs));
bshw_read_settings(&ch, bs);
bus_set_resource(dev, SYS_RES_IRQ, 0, bs->sc_irq, 1);
bus_set_resource(dev, SYS_RES_DRQ, 0, bs->sc_drq, 1);
}
bus_release_resource(dev, SYS_RES_IOPORT, 0, port_res);
if (mem_res != NULL)
bus_release_resource(dev, SYS_RES_MEMORY, 0, mem_res);
if (rv != 0)
return 0;
return ENXIO;
}
static int
ct_isa_attach(device_t dev)
{
struct ct_isa_softc *pct = device_get_softc(dev);
struct ct_softc *ct = &pct->sc_ct;
struct ct_bus_access_handle *chp = &ct->sc_ch;
struct scsi_low_softc *slp = &ct->sc_sclow;
struct bshw_softc *bs = &pct->sc_bshw;
struct bshw *hw;
int irq_rid, drq_rid, chiprev;
u_int8_t *vaddr;
bus_addr_t addr;
intrmask_t s;
hw = ct_find_hw(dev);
if (ct_space_map(dev, hw, &ct->port_res, &ct->mem_res) != 0) {
device_printf(dev, "bus io mem map failed\n");
return ENXIO;
}
bzero(chp, sizeof(*chp));
chp->ch_iot = rman_get_bustag(ct->port_res);
chp->ch_ioh = rman_get_bushandle(ct->port_res);
if (ct->mem_res) {
chp->ch_memt = rman_get_bustag(ct->mem_res);
chp->ch_memh = rman_get_bushandle(ct->mem_res);
}
chp->ch_bus_weight = ct_isa_bus_access_weight;
irq_rid = 0;
ct->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &irq_rid,
RF_ACTIVE);
drq_rid = 0;
ct->drq_res = bus_alloc_resource_any(dev, SYS_RES_DRQ, &drq_rid,
RF_ACTIVE);
if (ct->irq_res == NULL || ct->drq_res == NULL) {
ct_space_unmap(dev, ct);
return ENXIO;
}
if (ctprobesubr(chp, 0, BSHW_DEFAULT_HOSTID,
BSHW_DEFAULT_CHIPCLK, &chiprev) == 0)
{
device_printf(dev, "hardware missing\n");
ct_space_unmap(dev, ct);
return ENXIO;
}
/* setup DMA map */
if (bus_dma_tag_create(NULL, 1, 0,
BUS_SPACE_MAXADDR_24BIT, BUS_SPACE_MAXADDR,
NULL, NULL, MAXBSIZE, 1,
BUS_SPACE_MAXSIZE_32BIT,
BUS_DMA_ALLOCNOW, NULL, NULL,
&ct->sc_dmat) != 0) {
device_printf(dev, "can't set up ISA DMA map\n");
ct_space_unmap(dev, ct);
return ENXIO;
}
if (bus_dmamem_alloc(ct->sc_dmat, (void **)&vaddr, BUS_DMA_NOWAIT,
&ct->sc_dmamapt) != 0) {
device_printf(dev, "can't set up ISA DMA map\n");
ct_space_unmap(dev, ct);
return ENXIO;
}
bus_dmamap_load(ct->sc_dmat, ct->sc_dmamapt, vaddr, MAXBSIZE,
ct_dmamap, &addr, BUS_DMA_NOWAIT);
/* setup machdep softc */
bs->sc_hw = hw;
bs->sc_io_control = 0;
bs->sc_bounce_phys = (u_int8_t *)addr;
bs->sc_bounce_addr = vaddr;
bs->sc_bounce_size = MAXBSIZE;
bs->sc_minphys = (1 << 24);
bs->sc_dmasync_before = ct_isa_dmasync_before;
bs->sc_dmasync_after = ct_isa_dmasync_after;
bshw_read_settings(chp, bs);
/* setup ct driver softc */
ct->ct_hw = bs;
ct->ct_dma_xfer_start = bshw_dma_xfer_start;
ct->ct_pio_xfer_start = bshw_smit_xfer_start;
ct->ct_dma_xfer_stop = bshw_dma_xfer_stop;
ct->ct_pio_xfer_stop = bshw_smit_xfer_stop;
ct->ct_bus_reset = bshw_bus_reset;
ct->ct_synch_setup = bshw_synch_setup;
ct->sc_xmode = CT_XMODE_DMA;
if (chp->ch_memh != NULL)
ct->sc_xmode |= CT_XMODE_PIO;
ct->sc_chiprev = chiprev;
switch (chiprev)
{
case CT_WD33C93:
/* s = "WD33C93"; */
ct->sc_chipclk = 8;
break;
case CT_WD33C93_A:
if (DVCFG_MAJOR(device_get_flags(dev)) > 0)
{
/* s = "AM33C93_A"; */
ct->sc_chipclk = 20;
ct->sc_chiprev = CT_AM33C93_A;
}
else
{
/* s = "WD33C93_A"; */
ct->sc_chipclk = 10;
}
break;
case CT_AM33C93_A:
/* s = "AM33C93_A"; */
ct->sc_chipclk = 20;
break;
default:
case CT_WD33C93_B:
/* s = "WD33C93_B"; */
ct->sc_chipclk = 20;
break;
}
#if 0
printf("%s: chiprev %s chipclk %d MHz\n",
slp->sl_dev.dv_xname, s, ct->sc_chipclk);
#endif
slp->sl_dev = dev;
slp->sl_hostid = bs->sc_hostid;
slp->sl_irq = isa_get_irq(dev);
slp->sl_cfgflags = device_get_flags(dev);
s = splcam();
ctattachsubr(ct);
splx(s);
if (bus_setup_intr(dev, ct->irq_res, INTR_TYPE_CAM,
NULL, (driver_intr_t *)ctintr, ct, &ct->sc_ih)) {
ct_space_unmap(dev, ct);
return ENXIO;
}
return 0;
}
static struct bshw *
ct_find_hw(device_t dev)
{
return DVCFG_HW(&bshw_hwsel, DVCFG_MAJOR(device_get_flags(dev)));
}
static int
ct_space_map(device_t dev, struct bshw *hw,
struct resource **iohp, struct resource **memhp)
{
int port_rid, mem_rid;
*memhp = NULL;
port_rid = 0;
*iohp = bus_alloc_resource(dev, SYS_RES_IOPORT, &port_rid, 0, ~0,
BSHW_IOSZ, RF_ACTIVE);
if (*iohp == NULL)
return ENXIO;
if ((hw->hw_flags & BSHW_SMFIFO) == 0 || isa_get_maddr(dev) == -1)
return 0;
mem_rid = 0;
*memhp = bus_alloc_resource(dev, SYS_RES_MEMORY, &mem_rid, 0, ~0,
BSHW_MEMSZ, RF_ACTIVE);
if (*memhp == NULL) {
bus_release_resource(dev, SYS_RES_IOPORT, port_rid, *iohp);
return ENXIO;
}
return 0;
}
static void
ct_space_unmap(device_t dev, struct ct_softc *ct)
{
if (ct->port_res != NULL)
bus_release_resource(dev, SYS_RES_IOPORT, 0, ct->port_res);
if (ct->mem_res != NULL)
bus_release_resource(dev, SYS_RES_MEMORY, 0, ct->mem_res);
if (ct->irq_res != NULL)
bus_release_resource(dev, SYS_RES_IRQ, 0, ct->irq_res);
if (ct->drq_res != NULL)
bus_release_resource(dev, SYS_RES_DRQ, 0, ct->drq_res);
}
static void
ct_dmamap(void *arg, bus_dma_segment_t *seg, int nseg, int error)
{
bus_addr_t *addr = (bus_addr_t *)arg;
*addr = seg->ds_addr;
}
static void
ct_isa_bus_access_weight(chp)
struct ct_bus_access_handle *chp;
{
outb(0x5f, 0);
}
static void
ct_isa_dmasync_before(ct)
struct ct_softc *ct;
{
if (need_pre_dma_flush)
wbinvd();
}
static void
ct_isa_dmasync_after(ct)
struct ct_softc *ct;
{
if (need_post_dma_flush)
invd();
}