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vsbus.h revision 1.14.16.3 
      1 /*	$NetBSD: vsbus.h,v 1.14.16.3 2008/03/17 09:14:29 yamt Exp $ */
      2 /*
      3  * Copyright (c) 1996 Ludd, University of Lule}, Sweden.
      4  * All rights reserved.
      5  *
      6  * This code is derived from software contributed to Ludd by Bertram Barth.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *      This product includes software developed at Ludd, University of
     19  *      Lule}, Sweden and its contributors.
     20  * 4. The name of the author may not be used to endorse or promote products
     21  *    derived from this software without specific prior written permission
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     33  */
     34 
     35 /*
     36  * Generic definitions for the (virtual) vsbus. contains common info
     37  * used by all VAXstations.
     38  */
     39 
     40 #ifndef _VAX_VSBUS_H_
     41 #define _VAX_VSBUS_H_
     42 
     43 #include <machine/bus.h>
     44 #include <machine/sgmap.h>
     45 
     46 struct	vsbus_attach_args {
     47 	vaddr_t	va_addr;		/* virtual CSR address */
     48 	paddr_t	va_paddr;		/* physical CSR address */
     49 	short	va_br;			/* Interrupt level */
     50 	short	va_cvec;		/* Interrupt vector address */
     51 	u_char	va_maskno;		/* Interrupt vector in mask */
     52 	vaddr_t	va_dmaaddr;		/* DMA area address */
     53 	vsize_t	va_dmasize;		/* DMA area size */
     54 	bus_space_tag_t va_memt;
     55 	bus_dma_tag_t va_dmat;
     56 };
     57 
     58 /*
     59  * Some chip addresses and constants, same on all VAXstations.
     60  */
     61 #define VS_CFGTST	0x20020000      /* config register */
     62 #define VS_REGS         0x20080000      /* Misc CPU internal regs */
     63 #define NI_ADDR         0x20090000      /* Ethernet address */
     64 #define DZ_CSR          0x200a0000      /* DZ11-compatible chip csr */
     65 #define VS_CLOCK        0x200b0000      /* clock chip address */
     66 #define SCA_REGS        0x200c0000      /* disk device addresses */
     67 #define NI_BASE         0x200e0000      /* LANCE CSRs */
     68 #define NI_IOSIZE       (128 * VAX_NBPG)    /* IO address size */
     69 
     70 #define	KA49_SCSIMAP	0x27000000	/* KA49 SCSI SGMAP */
     71 /*
     72  * Small monochrome graphics framebuffer, present on all machines.
     73  */
     74 #define	SMADDR		0x30000000
     75 #define	SMSIZE		0x20000		/* Actually 256k, only 128k used */
     76 
     77 struct	vsbus_softc {
     78 	device_t sc_dev;
     79 	u_char	*sc_intmsk;	/* Mask register */
     80 	u_char	*sc_intclr;	/* Clear interrupt register */
     81 	u_char	*sc_intreq;	/* Interrupt request register */
     82 	u_char	sc_mask;	/* Interrupts to enable after autoconf */
     83 	vaddr_t	sc_vsregs;	/* Where the VS_REGS are mapped */
     84 	vaddr_t sc_dmaaddr;	/* Mass storage virtual DMA area */
     85 	vsize_t sc_dmasize;	/* Size of the DMA area */
     86 
     87 	bus_space_tag_t sc_iot;
     88 	struct vax_bus_dma_tag sc_dmatag;
     89 	struct vax_sgmap sc_sgmap;
     90 };
     91 
     92 struct vsbus_dma {
     93 	SIMPLEQ_ENTRY(vsbus_dma) vd_q;
     94 	void (*vd_go)(void *);
     95 	void *vd_arg;
     96 };
     97 
     98 #ifdef _KERNEL
     99 void	vsbus_dma_init(struct vsbus_softc *, unsigned ptecnt);
    100 u_char	vsbus_setmask(int);
    101 void	vsbus_clrintr(int);
    102 void	vsbus_copytoproc(struct proc *, void *, void *, int);
    103 void	vsbus_copyfromproc(struct proc *, void *, void *, int);
    104 void	vsbus_dma_start(struct vsbus_dma *);
    105 void	vsbus_dma_intr(void);
    106 #endif
    107 #endif /* _VAX_VSBUS_H_ */
    108