some barebone driver for HWPC010(maybe others too) EISA adapter(s)

1 files changed, 285 insertions, 0 deletions

diff --git a/sys/arch/hppa/dev/eba.c b/sys/arch/hppa/dev/eba.c
new file mode 100644
index 00000000000..d65eb3e325b
--- /dev/null
+++ b/sys/arch/hppa/dev/eba.c
@@ -0,0 +1,285 @@
+/*	$OpenBSD: eba.c,v 1.1 1998/11/23 03:01:43 mickey Exp $	*/
+
+/*
+ * Copyright (c) 1998 Michael Shalayeff
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Michael Shalayeff.
+ * 4. 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.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/reboot.h>
+
+#include <machine/bus.h>
+#include <machine/iomod.h>
+#include <machine/autoconf.h>
+
+#include <hppa/dev/cpudevs.h>
+
+#include <dev/eisa/eisareg.h>
+#include <dev/eisa/eisavar.h>
+
+#include <dev/isa/isareg.h>
+#include <dev/isa/isavar.h>
+
+struct eba_softc {
+	struct  device sc_dv;
+	u_int32_t  sc_in;
+
+	bus_addr_t sc_hpa;		/* HPA */
+	bus_space_tag_t sc_iot;		/* IO tag */
+	bus_space_handle_t sc_ioha;	/* EISA Adapter IO handle */
+	bus_space_handle_t sc_iohi;	/* Intr ACK register */
+
+	struct hppa_eisa_chipset sc_ec;
+	struct hppa_isa_chipset sc_ic;
+};
+
+union eba_attach_args {
+	char *eba_name;
+	struct eisabus_attach_args eba_eisa;
+	struct isabus_attach_args eba_isa;
+};
+
+/* EISA Bus Adapter registers definitions */
+#define	EBA_MONGOOSE	0x10000
+#define	EBA_VERSION	0
+#define	EBA_LOCK	1
+#define	EBA_LIOWAIT	2
+#define	EBA_SPEED	3
+#define	EBA_INTACK	0x1f000
+#define	EBA_INTACK_LEN	1
+#define	EBA_IOMAP	0x100000
+
+int	ebamatch __P((struct device *, void *, void *));
+void	ebaattach __P((struct device *, struct device *, void *));
+
+struct cfattach eba_ca = {
+	sizeof(struct eba_softc), ebamatch, ebaattach
+};
+
+struct cfdriver eba_cd = {
+	NULL, "eba", DV_DULL
+};
+
+int ebaprint __P((void *aux, const char *pnp));
+void	eba_eisa_attach_hook __P((struct device *, struct device *,
+				  struct eisabus_attach_args *));
+int	eba_intr_map __P((void *, u_int, eisa_intr_handle_t *));
+const char *eba_intr_string __P((void *, int));
+void	*eba_intr_establish __P((void *, int, int, int,
+				 int (*) __P((void *)), void *, char *));
+void	eba_intr_disestablish __P((void *, void *));
+
+void	eba_isa_attach_hook __P((struct device *, struct device *,
+				 struct isabus_attach_args *));
+int	eba_intr_check __P((void *, int, int));
+int	eba_intr __P((void *v));
+
+int
+ebamatch(parent, cfdata, aux)   
+	struct device *parent;
+	void *cfdata;
+	void *aux;
+{
+	struct confargs *ca = aux;
+	/* struct cfdata *cf = cfdata; */
+	register bus_space_tag_t iot;
+	bus_space_handle_t ioh;
+
+	if (ca->ca_type.iodc_type != HPPA_TYPE_BHA ||
+	    ca->ca_type.iodc_sv_model != HPPA_BHA_EISA)
+		return 0;
+
+	iot = HPPA_BUS_TAG_SET_BYTE(ca->ca_iot);
+	if (bus_space_map(iot, ca->ca_hpa + EBA_MONGOOSE, IOMOD_HPASIZE,
+			  0, &ioh))
+		return 0;
+
+	/* TODO: check EISA signature */
+
+	bus_space_unmap(iot, ioh, IOMOD_HPASIZE);
+
+	return 1;
+}
+
+void
+ebaattach(parent, self, aux)
+	struct device *parent;
+	struct device *self;
+	void *aux;
+{
+	register struct confargs *ca = aux;
+	register struct eba_softc *sc = (struct eba_softc *)self;
+	union eba_attach_args ea;
+	u_int ver;
+
+	sc->sc_hpa = ca->ca_hpa;
+	sc->sc_iot = HPPA_BUS_TAG_SET_BYTE(ca->ca_iot);
+	if (bus_space_map(sc->sc_iot, sc->sc_hpa + EBA_MONGOOSE,
+			  IOMOD_HPASIZE, 0, &sc->sc_ioha))
+		panic("ebaattach: unable to map adapter bus space");
+
+	if (bus_space_map(sc->sc_iot, sc->sc_hpa + EBA_INTACK,
+			  EBA_INTACK_LEN, 0, &sc->sc_iohi))
+		panic("ebaattach: unable to map intack bus space");
+
+	/* XXX should we reset the chip here? */
+
+	/* attach interrupt */
+	sc->sc_in = cpu_intr_establish(IPL_HIGH, eba_intr, sc, "eisa");
+	/* TODO: setup ctrl to deliver on that int bit */
+
+	ver = bus_space_read_1(sc->sc_iot, sc->sc_ioha, EBA_VERSION);
+	printf (": rev %d, %d MHz, hpa 0x%x, irq %d\n", ver & 0xff,
+		(bus_space_read_1(sc->sc_iot, sc->sc_ioha, EBA_SPEED)? 33: 25),
+		ca->ca_hpa, sc->sc_in);
+
+	/* disable isa wait states */
+	bus_space_write_1(sc->sc_iot, sc->sc_ioha, EBA_LIOWAIT, 1);
+	/* bus unlock */
+	bus_space_write_1(sc->sc_iot, sc->sc_ioha, EBA_LOCK, 1);
+
+	/* attach EISA */
+	sc->sc_ec.ec_v = sc;
+	sc->sc_ec.ec_attach_hook = eba_eisa_attach_hook;
+	sc->sc_ec.ec_intr_establish = eba_intr_establish;
+	sc->sc_ec.ec_intr_disestablish = eba_intr_disestablish;
+	sc->sc_ec.ec_intr_string = eba_intr_string;
+	sc->sc_ec.ec_intr_map = eba_intr_map;
+	ea.eba_eisa.eba_busname = "eisa";
+	ea.eba_eisa.eba_iot = HPPA_BUS_TAG_SET_BASE(sc->sc_iot, sc->sc_hpa);
+	ea.eba_eisa.eba_memt = ca->ca_iot;
+	ea.eba_eisa.eba_ec = &sc->sc_ec;
+	config_found(self, &ea.eba_eisa, ebaprint);
+
+	/* attach ISA */
+	sc->sc_ic.ic_v = sc;
+	sc->sc_ic.ic_attach_hook = eba_isa_attach_hook;
+	sc->sc_ic.ic_intr_establish = eba_intr_establish;
+	sc->sc_ic.ic_intr_disestablish = eba_intr_disestablish;
+	sc->sc_ic.ic_intr_check = eba_intr_check;
+	ea.eba_isa.iba_busname = "isa";
+	ea.eba_isa.iba_iot = HPPA_BUS_TAG_SET_BASE(sc->sc_iot, sc->sc_hpa);
+	ea.eba_isa.iba_memt = ca->ca_iot;
+	ea.eba_isa.iba_ic = &sc->sc_ic;
+	config_found(self, &ea.eba_isa, ebaprint);
+}
+
+int
+ebaprint(aux, pnp)
+	void *aux;
+	const char *pnp;
+{
+	union eba_attach_args *ea = aux;
+
+	if (pnp)
+		printf ("%s at %s", ea->eba_name, pnp);
+
+	return (UNCONF);
+}
+
+void
+eba_eisa_attach_hook(parent, self, eba)
+	struct device *parent;
+	struct device *self;
+	struct eisabus_attach_args *eba;
+{
+
+}
+
+int
+eba_intr_map(v, irq, ehp)
+	void *v;
+	u_int irq;
+	eisa_intr_handle_t *ehp;
+{
+	*ehp = irq;
+	return 0;
+}
+
+const char *
+eba_intr_string(v, irq)
+	void *v;
+	int irq;
+{
+	static char buf[16];
+
+	sprintf (buf, "isa irq %d", irq);
+	return buf;
+}
+
+void *
+eba_intr_establish(v, irq, type, level, fn, arg, name)
+	void *v;
+	int irq;
+	int type;
+	int level;
+	int (*fn) __P((void *));
+	void *arg;
+	char *name;
+{
+	void *cookie = "cookie";
+
+	
+	return cookie;
+}
+
+void
+eba_intr_disestablish(v, cookie)
+	void *v;
+	void *cookie;
+{
+
+}
+
+void
+eba_isa_attach_hook(parent, self, iba)
+	struct device *parent;
+	struct device *self;
+	struct isabus_attach_args *iba;
+{
+
+}
+
+int
+eba_intr_check(v, irq, type)
+	void *v;
+	int irq;
+	int type;
+{
+	return 0;
+}
+
+int
+eba_intr(v)
+	void *v;
+{
+	return 0;
+}
+