Add a ``digi'' driver.

This driver supports PCI Xr-based and ISA Xem Digiboard cards.
dgm will go away soon if there are no problems reported.  For now,
configuring dgm into your kernel warns that you should be using
digi.  This driver is probably close to supporting Xi, Xe and Xeve
cards, but I wouldn't expect them to work properly (hardware
donations welcome).

The digi_* pseudo-drivers are not drivers themselves but contain
the BIOS and FEP/OS binaries for various digiboard cards and are
auto-loaded and auto-unloaded by the digi driver at initialisation
time.  They *may* be configured into the kernel, but waste a lot
of space if they are.  They're intended to be left as modules.

The digictl program is (mainly) used to re-initialise cards that
have external port modules attached such as the PC/Xem.

1 files changed, 228 insertions, 0 deletions

diff --git a/sys/dev/digi/digi_pci.c b/sys/dev/digi/digi_pci.c
new file mode 100644
index 0000000..cdca91e
--- /dev/null
+++ b/sys/dev/digi/digi_pci.c
@@ -0,0 +1,228 @@
+/*-
+ * Copyright (c) 2001 Brian Somers <brian@Awfulhak.org>
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/param.h>
+
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/tty.h>
+#include <sys/syslog.h>
+#include <sys/bus.h>
+#include <machine/bus.h>
+#include <sys/rman.h>
+#include <machine/resource.h>
+#include <vm/vm.h>
+#include <vm/pmap.h>
+#include <pci/pcivar.h>
+
+#include <digi/digireg.h>
+#include <digi/digiio.h>
+#include <digi/digi.h>
+#include <digi/digi_pci.h>
+
+static u_char *
+digi_pci_setwin(struct digi_softc *sc, unsigned int addr)
+{
+	return (sc->vmem + addr);
+}
+
+static void
+digi_pci_hidewin(struct digi_softc *sc)
+{
+	return;
+}
+
+static void
+digi_pci_towin(struct digi_softc *sc, int win)
+{
+	return;
+}
+
+static int
+digi_pci_probe(device_t dev)
+{
+	unsigned int device_id = pci_get_devid(dev);
+
+	if (device_get_unit(dev) >= 16) {
+		/* Don't overflow our control mask */
+		device_printf(dev, "At most 16 digiboards may be used\n");
+		return (ENXIO);
+	}
+
+	if ((device_id & 0xffff) != PCI_VENDOR_DIGI)
+		return (ENXIO);
+
+	switch (device_id >> 16) {
+	case PCI_DEVICE_EPC:
+	case PCI_DEVICE_XEM:
+	case PCI_DEVICE_XR:
+	case PCI_DEVICE_CX:
+	case PCI_DEVICE_XRJ:
+	case PCI_DEVICE_EPCJ:
+	case PCI_DEVICE_920_4:
+	case PCI_DEVICE_920_8:
+	case PCI_DEVICE_920_2:
+		return 0;
+	}
+
+	return ENXIO;
+}
+
+static int
+digi_pci_attach(device_t dev)
+{
+	struct digi_softc *sc;
+	u_int32_t device_id;
+#ifdef DIGI_INTERRUPT
+	int retVal = 0;
+#endif
+
+	sc = device_get_softc(dev);
+	KASSERT(sc, ("digi%d: softc not allocated in digi_pci_attach\n",
+	    device_get_unit(dev)));
+
+	bzero(sc, sizeof(*sc));
+	sc->dev = dev;
+	sc->res.unit = device_get_unit(dev);
+
+	device_id = pci_get_devid(dev);
+	switch (device_id >> 16) {
+	case PCI_DEVICE_EPC:
+		sc->name = "Digiboard PCI EPC/X ASIC";
+		sc->res.mrid = 0x10;
+		sc->model = PCIEPCX;
+		sc->module = "EPCX_PCI";
+		break;
+	case PCI_DEVICE_XEM:
+		sc->name = "Digiboard PCI PC/Xem ASIC";
+		sc->res.mrid = 0x10;
+		sc->model = PCXEM;
+		sc->module = "Xem";
+		break;
+	case PCI_DEVICE_XR:
+		sc->name = "Digiboard PCI PC/Xr ASIC";
+		sc->res.mrid = 0x10;
+		sc->model = PCIXR;
+		sc->module = "Xr";
+		break;
+	case PCI_DEVICE_CX:
+		sc->name = "Digiboard PCI C/X ASIC";
+		sc->res.mrid = 0x10;
+		sc->model = PCCX;
+		sc->module = "CX_PCI";
+		break;
+	case PCI_DEVICE_XRJ:
+		sc->name = "Digiboard PCI PC/Xr PLX";
+		sc->res.mrid = 0x18;
+		sc->model = PCIXR;
+		sc->module = "Xr";
+		break;
+	case PCI_DEVICE_EPCJ:
+		sc->name = "Digiboard PCI EPC/X PLX";
+		sc->res.mrid = 0x18;
+		sc->model = PCIEPCX;
+		sc->module = "EPCX_PCI";
+		break;
+	case PCI_DEVICE_920_4:			/* Digi PCI4r 920 */
+		sc->name = "Digiboard PCI4r 920";
+		sc->res.mrid = 0x10;
+		sc->model = PCIXR;
+		sc->module = "Xr";
+		break;
+	case PCI_DEVICE_920_8:			/* Digi PCI8r 920 */
+		sc->name = "Digiboard PCI8r 920";
+		sc->res.mrid = 0x10;
+		sc->model = PCIXR;
+		sc->module = "Xr";
+		break;
+	case PCI_DEVICE_920_2:			/* Digi PCI2r 920 */
+		sc->name = "Digiboard PCI2r 920";
+		sc->res.mrid = 0x10;
+		sc->model = PCIXR;
+		sc->module = "Xr";
+		break;
+	default:
+		device_printf(dev, "Unknown device id = %08x\n", device_id);
+		return (ENXIO);
+	}
+
+	pci_write_config(dev, 0x40, 0, 4);
+	pci_write_config(dev, 0x46, 0, 4);
+
+	sc->res.mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->res.mrid,
+	    0, ~0, 1, RF_ACTIVE);
+
+#ifdef DIGI_INTERRUPT
+	sc->res.irqrid = 0;
+	sc->res.irq = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->res.irqrid,
+	    0, ~0, 1, RF_SHAREABLE | RF_ACTIVE);
+	if (sc->res.irq == NULL) {
+		device_printf(dev, "couldn't map interrupt\n");
+		return ENXIO;
+	}
+	retVal = bus_setup_intr(dev, sc->res.irq, INTR_TYPE_TTY,
+	    digiintr, sc, &sc->res.irqHandler);
+#else
+	DLOG(DIGIDB_IRQ, (sc->dev, "Interrupt support compiled out\n"));
+#endif
+
+	sc->vmem = rman_get_virtual(sc->res.mem);
+	sc->pmem = vtophys(sc->vmem);
+	sc->pcibus = 1;
+	sc->win_size = 0x200000;
+	sc->win_bits = 21;
+	sc->csigs = &digi_normal_signals;
+	sc->status = DIGI_STATUS_NOTINIT;
+	callout_handle_init(&sc->callout);
+	callout_handle_init(&sc->inttest);
+	sc->setwin = digi_pci_setwin;
+	sc->hidewin = digi_pci_hidewin;
+	sc->towin = digi_pci_towin;
+
+	PCIPORT = FEPRST;
+
+	return (digi_attach(sc));
+}
+
+static device_method_t digi_pci_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe, digi_pci_probe),
+	DEVMETHOD(device_attach, digi_pci_attach),
+	DEVMETHOD(device_detach, digi_detach),
+	DEVMETHOD(device_shutdown, digi_shutdown),
+	{0, 0}
+};
+
+static driver_t digi_pci_drv = {
+	"digi",
+	digi_pci_methods,
+	sizeof(struct digi_softc),
+};
+
+
+DRIVER_MODULE(digi, pci, digi_pci_drv, digi_devclass, digi_modhandler, 0);