1 files changed, 239 insertions, 0 deletions

diff --git a/sys/dev/ar/if_ar_isa.c b/sys/dev/ar/if_ar_isa.c
new file mode 100644
index 000000000000..c236c82d803b
--- /dev/null
+++ b/sys/dev/ar/if_ar_isa.c
@@ -0,0 +1,239 @@
+/*
+ * Copyright (c) 1995 - 2001 John Hay.  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 author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY John Hay ``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 John Hay 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Programming assumptions and other issues.
+ *
+ * The descriptors of a DMA channel will fit in a 16K memory window.
+ *
+ * The buffers of a transmit DMA channel will fit in a 16K memory window.
+ *
+ * Only the ISA bus cards with X.21 and V.35 is tested.
+ *
+ * When interface is going up, handshaking is set and it is only cleared
+ * when the interface is down'ed.
+ *
+ * There should be a way to set/reset Raw HDLC/PPP, Loopback, DCE/DTE,
+ * internal/external clock, etc.....
+ *
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <machine/bus_pio.h>
+#include <machine/bus_memio.h>
+#include <sys/rman.h>
+
+#include <isa/isavar.h>
+#include "isa_if.h"
+
+#include <dev/ic/hd64570.h>
+#include <dev/ar/if_arregs.h>
+
+#ifdef TRACE
+#define TRC(x)               x
+#else
+#define TRC(x)
+#endif
+
+#define TRCL(x)              x
+
+static int ar_isa_probe (device_t);
+static int ar_isa_attach (device_t);
+
+static struct isa_pnp_id ar_ids[] = {
+	{0,		NULL}
+};
+
+static device_method_t ar_methods[] = {
+	DEVMETHOD(device_probe,		ar_isa_probe),
+	DEVMETHOD(device_attach,	ar_isa_attach),
+	DEVMETHOD(device_detach,	ar_detach),
+	{ 0, 0 }
+};
+
+static driver_t ar_isa_driver = {
+	"ar",
+	ar_methods,
+	sizeof (struct ar_hardc)
+};
+
+devclass_t ar_devclass;
+
+DRIVER_MODULE(if_ar, isa, ar_isa_driver, ar_devclass, 0, 0);
+
+/*
+ * Probe to see if it is there.
+ * Get its information and fill it in.
+ */
+static int
+ar_isa_probe(device_t device)
+{
+	int error;
+	u_long membase, memsize, port_start, port_count;
+
+	error = ISA_PNP_PROBE(device_get_parent(device), device, ar_ids);
+	if(error == ENXIO || error == 0)
+		return (error);
+
+	if((error = ar_allocate_ioport(device, 0, ARC_IO_SIZ))) {
+		return (ENXIO);
+	}
+
+	/*
+	 * Now see if the card is realy there.
+	 *
+	 * XXX For now I just check the undocumented ports
+	 * for "570". We will probably have to do more checking.
+	 */
+	error = bus_get_resource(device, SYS_RES_IOPORT, 0, &port_start,
+	    &port_count);
+
+	if((inb(port_start + AR_ID_5) != '5') ||
+	   (inb(port_start + AR_ID_7) != '7') ||
+	   (inb(port_start + AR_ID_0) != '0')) {
+		ar_deallocate_resources(device);
+		return (ENXIO);
+	}
+	membase = bus_get_resource_start(device, SYS_RES_MEMORY, 0);
+	memsize = inb(port_start + AR_REV);
+	memsize = 1 << ((memsize & AR_WSIZ_MSK) >> AR_WSIZ_SHFT);
+	memsize *= ARC_WIN_SIZ;
+	error = bus_set_resource(device, SYS_RES_MEMORY, 0, membase, memsize);
+	ar_deallocate_resources(device);
+
+	return (error);
+}
+
+/*
+ * Malloc memory for the softc structures.
+ * Reset the card to put it in a known state.
+ * Register the ports on the adapter.
+ * Fill in the info for each port.
+ * Attach each port to sppp and bpf.
+ */
+static int
+ar_isa_attach(device_t device)
+{
+	u_int tmp;
+	u_long irq, junk;
+	struct ar_hardc *hc;
+
+	hc = (struct ar_hardc *)device_get_softc(device);
+	if(ar_allocate_ioport(device, 0, ARC_IO_SIZ))
+		return (ENXIO);
+	hc->bt = rman_get_bustag(hc->res_ioport);
+	hc->bh = rman_get_bushandle(hc->res_ioport);
+
+	hc->iobase = rman_get_start(hc->res_ioport);
+
+	tmp = inb(hc->iobase + AR_BMI);
+	hc->bustype = tmp & AR_BUS_MSK;
+	hc->memsize = (tmp & AR_MEM_MSK) >> AR_MEM_SHFT;
+	hc->memsize = 1 << hc->memsize;
+	hc->memsize <<= 16;
+	hc->interface[0] = (tmp & AR_IFACE_MSK);
+	hc->interface[1] = hc->interface[0];
+	hc->interface[2] = hc->interface[0];
+	hc->interface[3] = hc->interface[0];
+	tmp = inb(hc->iobase + AR_REV);
+	hc->revision = tmp & AR_REV_MSK;
+	hc->winsize = 1 << ((tmp & AR_WSIZ_MSK) >> AR_WSIZ_SHFT);
+	hc->winsize *= ARC_WIN_SIZ;
+	hc->winmsk = hc->winsize - 1;
+	hc->numports = inb(hc->iobase + AR_PNUM);
+	hc->handshake = inb(hc->iobase + AR_HNDSH);
+
+	if(ar_allocate_memory(device, 0, hc->winsize))
+		return (ENXIO);
+
+	hc->mem_start = rman_get_virtual(hc->res_memory);
+	hc->mem_end = hc->mem_start + hc->winsize;
+	hc->cunit = device_get_unit(device);
+
+	switch(hc->interface[0]) {
+	case AR_IFACE_EIA_232:
+		printf("ar%d: The EIA 232 interface is not supported.\n",
+			hc->cunit);
+		ar_deallocate_resources(device);
+		return (ENXIO);
+	case AR_IFACE_V_35:
+		break;
+	case AR_IFACE_EIA_530:
+		printf("ar%d: WARNING: The EIA 530 interface is untested.\n",
+			hc->cunit);
+		break;
+	case AR_IFACE_X_21:
+		break;
+	case AR_IFACE_COMBO:
+		printf("ar%d: WARNING: The COMBO interface is untested.\n",
+			hc->cunit);
+		break;
+	}
+
+	/*
+	 * Do a little sanity check.
+	 */
+	if((hc->numports > NPORT) || (hc->memsize > (512*1024))) {
+		ar_deallocate_resources(device);
+		return (ENXIO);
+	}
+
+	if(ar_allocate_irq(device, 0, 1))
+		return (ENXIO);
+
+	if(bus_get_resource(device, SYS_RES_IRQ, 0, &irq, &junk)) {
+		ar_deallocate_resources(device);
+		return (ENXIO);
+	}
+	hc->isa_irq = irq;
+
+	if(ar_attach(device)) {
+		ar_deallocate_resources(device);
+		return (ENXIO);
+	}
+
+	return (0);
+}
+
+
+
+
+
+
+
+/*
+ ********************************* END ************************************
+ */