Added another wd33c93 based SCSI card driver which replaces the bs driver.

Now, default is still bs.

Submitted by:	nyan and non.
Obtained from:	NetBSD/pc98

1 files changed, 322 insertions, 0 deletions

diff --git a/sys/dev/ct/ct_isa.c b/sys/dev/ct/ct_isa.c
new file mode 100644
index 0000000..959a2a8
--- /dev/null
+++ b/sys/dev/ct/ct_isa.c
@@ -0,0 +1,322 @@
+/* $FreeBSD$ */
+/*	$NecBSD: ct_isa.c,v 1.6 1999/07/26 06:32:01 honda Exp $	*/
+/*	$NetBSD$	*/
+
+/*
+ * [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/disklabel.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 <pc98/pc98/pc98.h>
+#include <isa/isavar.h>
+
+#include <machine/dvcfg.h>
+#include <machine/physio_proc.h>
+
+#include <cam/scsi/scsi_low.h>
+
+#include <i386/isa/ic/wd33c93.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);
+
+struct ct_isa_softc {
+	struct ct_softc sc_ct;
+	struct bshw_softc sc_bshw;
+};
+
+static struct isa_pnp_id ct_pnp_ids[] = {
+	{ 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;
+	int rv;
+
+	if (ISA_PNP_PROBE(device_get_parent(dev), dev, ct_pnp_ids) == ENXIO)
+		return ENXIO;
+
+	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;
+
+	rv = ctprobesubr(rman_get_bustag(port_res),
+			 rman_get_bushandle(port_res),
+			 0, BSHW_DEFAULT_HOSTID, BSHW_DEFAULT_CHIPCLK);
+	if (rv != 0)
+	{
+		struct bshw_softc bshw_tab;
+		struct bshw_softc *bs = &bshw_tab;
+
+		memset(bs, 0, sizeof(*bs));
+		bshw_read_settings(rman_get_bustag(port_res),
+				   rman_get_bushandle(port_res), 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 scsi_low_softc *slp = &ct->sc_sclow;
+	struct bshw_softc *bs = &pct->sc_bshw;
+	struct bshw *hw;
+	int irq_rid, drq_rid;
+	u_int8_t *vaddr;
+	bus_addr_t addr;
+
+	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;
+	}
+
+	ct->sc_iot = rman_get_bustag(ct->port_res);
+	ct->sc_ioh = rman_get_bushandle(ct->port_res);
+	if (ct->mem_res) {
+		ct->sc_memt = rman_get_bustag(ct->mem_res);
+		ct->sc_memh = rman_get_bushandle(ct->mem_res);
+	}
+
+	irq_rid = 0;
+	ct->irq_res = bus_alloc_resource(dev, SYS_RES_IRQ, &irq_rid, 0, ~0,
+					 1, RF_ACTIVE);
+	drq_rid = 0;
+	ct->drq_res = bus_alloc_resource(dev, SYS_RES_DRQ, &drq_rid, 0, ~0,
+					 1, RF_ACTIVE);
+	if (ct->irq_res == NULL || ct->drq_res == NULL) {
+		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, &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, 0);
+
+	/* setup machdep softc */
+	bs->sc_hw = hw;
+	bs->sc_bounce_phys = (u_int8_t *)addr;
+	bs->sc_bounce_addr = vaddr;
+	bs->sc_bounce_size = MAXBSIZE;
+	bs->sc_minphys = (1 << 24);
+	bshw_read_settings(ct->sc_iot, ct->sc_ioh, 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 (ct->sc_memh != NULL)
+		ct->sc_xmode |= CT_XMODE_PIO;
+	ct->sc_chiprev = CT_WD33C93_B;
+	ct->sc_chipclk = BSHW_DEFAULT_CHIPCLK;
+
+	slp->sl_dev = dev;
+	slp->sl_hostid = bs->sc_hostid;
+	slp->sl_irq = isa_get_irq(dev);
+	slp->sl_cfgflags = device_get_flags(dev);
+
+	ctattachsubr(ct);
+
+	if (bus_setup_intr(dev, ct->irq_res, INTR_TYPE_CAM,
+			   (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;
+}