Adaptec 6260/6360 CAM driver.

1 files changed, 227 insertions, 0 deletions

diff --git a/sys/dev/aic/aic_isa.c b/sys/dev/aic/aic_isa.c
new file mode 100644
index 0000000..cdf49cc
--- /dev/null
+++ b/sys/dev/aic/aic_isa.c
@@ -0,0 +1,227 @@
+/*-
+ * Copyright (c) 1999 Luoqi Chen.
+ * 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/module.h>
+#include <sys/bus.h>
+
+#include <machine/bus_pio.h>
+#include <machine/bus.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+ 
+#include <isa/isavar.h>
+#include <dev/aic/aic6360reg.h>
+#include <dev/aic/aicvar.h>
+  
+struct aic_isa_softc {
+	struct	aic_softc sc_aic;
+	struct	resource *sc_port;
+	struct	resource *sc_irq;
+	struct	resource *sc_drq;
+	void	*sc_ih;
+};
+
+static int aic_isa_alloc_resources __P((device_t));
+static void aic_isa_release_resources __P((device_t));
+static int aic_isa_probe __P((device_t dev));
+static int aic_isa_attach __P((device_t dev));
+
+static u_int aic_isa_ports[] = { 0x340, 0x140 };
+#define	AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0]))
+#define	AIC_ISA_PORTSIZE 0x20
+
+static int
+aic_isa_alloc_resources(device_t dev)
+{
+	struct aic_isa_softc *sc = device_get_softc(dev);
+	int rid;
+
+	sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
+
+	rid = 0;
+	sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
+					0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE);
+	if (!sc->sc_port)
+		return (ENOMEM);
+
+	if (isa_get_irq(dev) != -1) {
+		rid = 0;
+		sc->sc_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid,
+						0ul, ~0ul, 1, RF_ACTIVE);
+		if (!sc->sc_irq) {
+			aic_isa_release_resources(dev);
+			return (ENOMEM);
+		}
+	}
+
+	if (isa_get_drq(dev) != -1) {
+		rid = 0;
+		sc->sc_drq = bus_alloc_resource(dev, SYS_RES_DRQ, &rid,
+						0ul, ~0ul, 1, RF_ACTIVE);
+		if (!sc->sc_drq) {
+			aic_isa_release_resources(dev);
+			return (ENOMEM);
+		}
+	}
+
+	sc->sc_aic.unit = device_get_unit(dev);
+	sc->sc_aic.tag = rman_get_bustag(sc->sc_port);
+	sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port);
+	return (0);
+}
+
+static void
+aic_isa_release_resources(device_t dev)
+{
+	struct aic_isa_softc *sc = device_get_softc(dev);
+
+	if (sc->sc_port)
+		bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
+	if (sc->sc_irq)
+		bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
+	if (sc->sc_drq)
+		bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
+	sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
+}
+
+static int
+aic_isa_probe(device_t dev)
+{
+	struct aic_isa_softc *sc = device_get_softc(dev);
+	struct aic_softc *aic = &sc->sc_aic;
+	int numports, i;
+	u_int port, *ports;
+	u_int8_t porta;
+
+	if (isa_get_vendorid(dev))
+		return (ENXIO);
+
+	port = isa_get_port(dev);
+	if (port != -1) {
+		ports = &port;
+		numports = 1;
+	} else {
+		ports = aic_isa_ports;
+		numports = AIC_ISA_NUMPORTS;
+	}
+
+	for (i = 0; i < numports; i++) {
+		if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i],
+				     AIC_ISA_PORTSIZE))
+			continue;
+		if (aic_isa_alloc_resources(dev))
+			continue;
+		if (!aic_probe(aic)) {
+			aic_isa_release_resources(dev);
+			break;
+		}
+		aic_isa_release_resources(dev);
+	}
+
+	if (i == numports)
+		return (ENXIO);
+
+	porta = aic_inb(aic, PORTA);
+	if (isa_get_irq(dev) == -1)
+		bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
+	if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
+		bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
+	return (0);
+}
+
+static int
+aic_isa_attach(device_t dev)
+{
+	struct aic_isa_softc *sc = device_get_softc(dev);
+	struct aic_softc *aic = &sc->sc_aic;
+	int error;
+
+	error = aic_isa_alloc_resources(dev);
+	if (error) {
+		device_printf(dev, "resource allocation failed\n");
+		return (error);
+	}
+
+	error = aic_attach(aic);
+	if (error) {
+		device_printf(dev, "attach failed\n");
+		aic_isa_release_resources(dev);
+		return (error);
+	}
+
+	error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM, aic_intr,
+				aic, &sc->sc_ih);
+	if (error) {
+		device_printf(dev, "failed to register interrupt handler\n");
+		aic_isa_release_resources(dev);
+		return (error);
+	}
+	return (0);
+}
+
+static int
+aic_isa_detach(device_t dev)
+{
+	struct aic_isa_softc *sc = device_get_softc(dev);
+	struct aic_softc *aic = &sc->sc_aic;
+	int error;
+
+	error = aic_detach(aic);
+	if (error) {
+		device_printf(dev, "detach failed\n");
+		return (error);
+	}
+
+	error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
+	if (error) {
+		device_printf(dev, "failed to unregister interrupt handler\n");
+	}
+
+	aic_isa_release_resources(dev);
+	return (0);
+}
+
+static device_method_t aic_isa_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		aic_isa_probe),
+	DEVMETHOD(device_attach,	aic_isa_attach),
+	DEVMETHOD(device_detach,	aic_isa_detach),
+	{ 0, 0 }
+};
+
+static driver_t aic_isa_driver = {
+	"aic",
+	aic_isa_methods, sizeof(struct aic_isa_softc),
+};
+
+static devclass_t aic_devclass;
+
+DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);