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btvmeivar.h revision 1.1 
      1 /* $NetBSD: btvmeivar.h,v 1.1 1999/06/30 17:45:39 drochner Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1999
      5  *	Matthias Drochner.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed for the NetBSD Project
     18  *	by Matthias Drochner.
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  *
     33  */
     34 
     35 struct b3_617_vmeintrhand {
     36 	TAILQ_ENTRY(b3_617_vmeintrhand) ih_next;
     37 	int (*ih_fun) __P((void*));
     38 	void *ih_arg;
     39 	int ih_level;
     40 	int ih_vector;
     41 	int ih_prior;
     42 	u_long ih_count;
     43 };
     44 
     45 struct b3_617_softc {
     46 	struct device sc_dev;
     47 
     48 	/* tags passed in from PCI */
     49 	pci_chipset_tag_t sc_pc;
     50 	bus_space_tag_t csrt, mapt;
     51 	bus_space_handle_t csrh, maph;
     52 	bus_addr_t vmepbase; /* physical PCI address */
     53 	bus_dma_tag_t sc_dmat;
     54 	void *sc_ih;
     55 
     56 	bus_space_tag_t sc_vmet;
     57 
     58 	struct vme_range csrwindow, dmawindow24, dmawindow32;
     59 
     60 	/* tags passed to VME devices */
     61 	struct vme_chipset_tag sc_vct;
     62 
     63 	/* list of VME interrupt handlers */
     64 	TAILQ_HEAD(, b3_617_vmeintrhand) intrhdls;
     65 	int strayintrs;
     66 
     67 	/*
     68 	 * management of adapter mapping tables
     69 	 */
     70 	/* max fragmentation of scatter tables */
     71 #define NVMEMAP 20
     72 
     73 	struct extent *vmeext;
     74 	char vmemap[EXTENT_FIXED_STORAGE_SIZE(NVMEMAP)];
     75 };
     76 
     77 #define read_csr_byte(sc, reg) \
     78   bus_space_read_1(sc->csrt, sc->csrh, reg)
     79 #define write_csr_byte(sc, reg, val) \
     80   bus_space_write_1(sc->csrt, sc->csrh, reg, val)
     81 #define read_csr_word(sc, reg) \
     82   bus_space_read_2(sc->csrt, sc->csrh, reg)
     83 #define write_csr_word(sc, reg, val) \
     84   bus_space_write_2(sc->csrt, sc->csrh, reg, val)
     85 
     86 #define write_mapmem(sc, ofs, val) \
     87   bus_space_write_4(sc->mapt, sc->maph, ofs, val)
     88 #define read_mapmem(sc, ofs) \
     89   bus_space_read_4(sc->mapt, sc->maph, ofs)
     90 
     91 #define VME_PAGESIZE 0x1000
     92 #define PCI_PAGESIZE 0x1000
     93 #define DMA_PAGESIZE 0x1000
     94 
     95 /* shared between driver parts */
     96 int b3_617_reset __P((struct b3_617_softc*));
     97 int b3_617_init __P((struct b3_617_softc*));
     98 #ifdef notyet /* for detach */
     99 void b3_617_halt __P((struct b3_617_softc*));
    100 #endif
    101 int b3_617_intr __P((void*));
    102 #if 0
    103 void b3_617_cntlrdma_done __P((struct b3_617_softc*));
    104 #endif
    105 
    106 /* exported via tag structs */
    107 int b3_617_map_vme __P((void *, vme_addr_t, vme_size_t,
    108 			vme_am_t, vme_datasize_t, vme_swap_t,
    109 			bus_space_tag_t *, bus_space_handle_t *, vme_mapresc_t*));
    110 void b3_617_unmap_vme __P((void *, vme_mapresc_t));
    111 
    112 int b3_617_vme_probe __P((void *, vme_addr_t, vme_size_t, vme_am_t,
    113 			  vme_datasize_t,
    114 			  int (*)(void *, bus_space_tag_t, bus_space_handle_t),
    115 			  void *));
    116 
    117 int b3_617_map_vmeint __P((void *, int, int, vme_intr_handle_t *));
    118 void *b3_617_establish_vmeint __P((void *, vme_intr_handle_t, int,
    119 				   int (*)(void *), void *));
    120 void b3_617_disestablish_vmeint __P((void *, void *));
    121 
    122 int b3_617_dmamap_create __P((void *, vme_size_t,
    123 			      vme_am_t, vme_datasize_t, vme_swap_t,
    124 			      int, vme_size_t, vme_addr_t,
    125 			      int, bus_dmamap_t *));
    126 void b3_617_dmamap_destroy __P((void *, bus_dmamap_t));
    127 
    128 int b3_617_dmamem_alloc __P((void *, vme_size_t,
    129 			     vme_am_t, vme_datasize_t, vme_swap_t,
    130 			     bus_dma_segment_t *, int, int *, int));
    131 void b3_617_dmamem_free __P((void *, bus_dma_segment_t *, int));
    132