Arm port, NetBSD codebase stripped down, 32bit only support.

1 files changed, 193 insertions, 0 deletions

diff --git a/sys/arch/arm/include/isa_machdep.h b/sys/arch/arm/include/isa_machdep.h
new file mode 100644
index 00000000000..97e2c1171c8
--- /dev/null
+++ b/sys/arch/arm/include/isa_machdep.h
@@ -0,0 +1,193 @@
+/*	$OpenBSD: isa_machdep.h,v 1.1 2004/02/01 05:09:49 drahn Exp $	*/
+/*	$NetBSD: isa_machdep.h,v 1.3 2002/01/07 22:58:07 chris Exp $	*/
+
+/*-
+ * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center.
+ *
+ * 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 the NetBSD
+ *	Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#ifndef _ARM32_ISA_MACHDEP_H_
+#define _ARM32_ISA_MACHDEP_H_
+
+#include <machine/bus.h>
+#include <dev/isa/isadmavar.h>
+
+#define __NO_ISA_INTR_CHECK
+/*
+ * Types provided to machine-independent ISA code.
+ */
+struct arm32_isa_chipset {
+	/*
+	struct isa_dma_state ic_dmastate;
+	*/
+};
+
+typedef struct arm32_isa_chipset *isa_chipset_tag_t;
+
+struct device;			/* XXX */
+struct isabus_attach_args;	/* XXX */
+
+/*
+ * Functions provided to machine-independent ISA code.
+ */
+void	isa_attach_hook(struct device *, struct device *,
+	    struct isabus_attach_args *);
+const struct evcnt *isa_intr_evcnt(isa_chipset_tag_t ic, int irq);
+void	*isa_intr_establish(isa_chipset_tag_t ic, int irq, int type,
+	    int level, int (*ih_fun)(void *), void *ih_arg, char *name);
+void	isa_intr_disestablish(isa_chipset_tag_t ic, void *handler);
+
+#if 0
+#define	isa_dmainit(ic, bst, dmat, d)					\
+	_isa_dmainit(&(ic)->ic_dmastate, (bst), (dmat), (d))
+#define	isa_dmacascade(ic, c)						\
+	_isa_dmacascade(&(ic)->ic_dmastate, (c))
+#define	isa_dmamaxsize(ic, c)						\
+	_isa_dmamaxsize(&(ic)->ic_dmastate, (c))
+#define	isa_dmamap_create(ic, c, s, f)					\
+	_isa_dmamap_create(&(ic)->ic_dmastate, (c), (s), (f))
+#define	isa_dmamap_destroy(ic, c)					\
+	_isa_dmamap_destroy(&(ic)->ic_dmastate, (c))
+#define	isa_dmastart(ic, c, a, n, p, f, bf)				\
+	_isa_dmastart(&(ic)->ic_dmastate, (c), (a), (n), (p), (f), (bf))
+#define	isa_dmaabort(ic, c)						\
+	_isa_dmaabort(&(ic)->ic_dmastate, (c))
+#define	isa_dmacount(ic, c)						\
+	_isa_dmacount(&(ic)->ic_dmastate, (c))
+#define	isa_dmafinished(ic, c)						\
+	_isa_dmafinished(&(ic)->ic_dmastate, (c))
+#define	isa_dmadone(ic, c)						\
+	_isa_dmadone(&(ic)->ic_dmastate, (c))
+#define	isa_dmafreeze(ic)						\
+	_isa_dmafreeze(&(ic)->ic_dmastate)
+#define	isa_dmathaw(ic)							\
+	_isa_dmathaw(&(ic)->ic_dmastate)
+#define	isa_dmamem_alloc(ic, c, s, ap, f)				\
+	_isa_dmamem_alloc(&(ic)->ic_dmastate, (c), (s), (ap), (f))
+#define	isa_dmamem_free(ic, c, a, s)					\
+	_isa_dmamem_free(&(ic)->ic_dmastate, (c), (a), (s))
+#define	isa_dmamem_map(ic, c, a, s, kp, f)				\
+	_isa_dmamem_map(&(ic)->ic_dmastate, (c), (a), (s), (kp), (f))
+#define	isa_dmamem_unmap(ic, c, k, s)					\
+	_isa_dmamem_unmap(&(ic)->ic_dmastate, (c), (k), (s))
+#define	isa_dmamem_mmap(ic, c, a, s, o, p, f)				\
+	_isa_dmamem_mmap(&(ic)->ic_dmastate, (c), (a), (s), (o), (p), (f))
+#define isa_drq_alloc(ic, c)						\
+	_isa_drq_alloc(&(ic)->ic_dmastate, c)
+#define isa_drq_free(ic, c)						\
+	_isa_drq_free(&(ic)->ic_dmastate, c)
+#define	isa_drq_isfree(ic, c)						\
+	_isa_drq_isfree(&(ic)->ic_dmastate, (c))
+#define	isa_malloc(ic, c, s, p, f)					\
+	_isa_malloc(&(ic)->ic_dmastate, (c), (s), (p), (f))
+#define	isa_free(a, p)							\
+	_isa_free((a), (p))
+#define	isa_mappage(m, o, p)						\
+	_isa_mappage((m), (o), (p))
+#endif
+
+/*
+ * ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED
+ * BY PORTABLE CODE.
+ */
+
+extern struct arm32_bus_dma_tag isa_bus_dma_tag;
+
+/*
+ * Cookie used by ISA DMA.  A pointer to one of these is stashed in
+ * the DMA map.
+ */
+struct arm32_isa_dma_cookie {
+	int	id_flags;		/* flags; see below */
+
+	/*
+	 * Information about the original buffer used during
+	 * DMA map syncs.  Note that origbuflen is only used
+	 * for ID_BUFTYPE_LINEAR.
+	 */
+	void	*id_origbuf;		/* pointer to orig buffer if
+					   bouncing */
+	bus_size_t id_origbuflen;	/* ...and size */
+	int	id_buftype;		/* type of buffer */
+
+	void	*id_bouncebuf;		/* pointer to the bounce buffer */
+	bus_size_t id_bouncebuflen;	/* ...and size */
+	int	id_nbouncesegs;		/* number of valid bounce segs */
+	bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer
+					       physical memory segments */
+};
+
+/* id_flags */
+#define	ID_MIGHT_NEED_BOUNCE	0x01	/* map could need bounce buffers */
+#define	ID_HAS_BOUNCE		0x02	/* map currently has bounce buffers */
+#define	ID_IS_BOUNCING		0x04	/* map is bouncing current xfer */
+
+/* id_buftype */
+#define	ID_BUFTYPE_INVALID	0
+#define	ID_BUFTYPE_LINEAR	1
+#define	ID_BUFTYPE_MBUF		2
+#define	ID_BUFTYPE_UIO		3
+#define	ID_BUFTYPE_RAW		4
+
+/* bus space tags */
+extern struct bus_space isa_io_bs_tag;
+extern struct bus_space isa_mem_bs_tag;
+
+/* ISA chipset */
+extern struct arm32_isa_chipset isa_chipset_tag;
+
+/* for pccons.c */
+#define MONO_BASE           0x3B4
+#define MONO_BUF            0x000B0000
+#define CGA_BASE            0x3D4
+#define CGA_BUF             0x000B8000
+#define VGA_BUF             0xA0000
+#define VGA_BUF_LEN         (0xBFFFF - 0xA0000)
+
+void	isa_init(vaddr_t, vaddr_t);
+void	isa_io_init(vaddr_t, vaddr_t);
+void	isa_dma_init(void);
+vaddr_t	isa_io_data_vaddr(void);
+vaddr_t	isa_mem_data_vaddr(void);
+int isa_intr_alloc(isa_chipset_tag_t ic, int mask, int type, int *irq);
+void	isa_intr_init(void);
+
+/*
+ * Miscellanous functions.
+ */
+void sysbeep(int, int);		/* beep with the system speaker */
+void isa_fillw(u_int val, void *addr, size_t len);
+
+#endif	/* _ARM32_ISA_MACHDEP_H_ XXX */