1 /* $NetBSD: mvmebus.h,v 1.4 2012/10/27 17:18:27 chs Exp $ */ 2 3 /*- 4 * Copyright (c) 2000, 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Steve C. Woodford. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _MVME_MVMEBUS_H 33 #define _MVME_MVMEBUS_H 34 35 /* 36 * VMEbus master and slave windows are described using 37 * instances of this structure. 38 * 39 * The chip-specific code records the details of the available mappings 40 * for the MVME board. 41 */ 42 struct mvmebus_range { 43 vme_am_t vr_am; /* Address modifier (A16, A24, A32) */ 44 vme_datasize_t vr_datasize; /* Datasize: logical OR of D8,D16,D32 */ 45 paddr_t vr_locstart; /* CPU-relative address of mapping */ 46 paddr_t vr_mask; /* Mask to apply to this mapping */ 47 vme_addr_t vr_vmestart; /* VMEbus start address */ 48 vme_addr_t vr_vmeend; /* VMEbus end address */ 49 }; 50 51 /* Assigned to vr_am to specify the mapping is not valid */ 52 #define MVMEBUS_AM_DISABLED ((vme_am_t)-1) 53 54 /* For slave mappings, these specify the slave's capabilities */ 55 #define MVMEBUS_AM_CAP_DATA 0x0100 56 #define MVMEBUS_AM_CAP_PROG 0x0200 57 #define MVMEBUS_AM_CAP_BLK 0x0400 58 #define MVMEBUS_AM_CAP_BLKD64 0x0800 59 #define MVMEBUS_AM_CAP_USER 0x1000 60 #define MVMEBUS_AM_CAP_SUPER 0x2000 61 #define MVMEBUS_AM_HAS_CAP(x) (((x) & 0x3f00) != 0) 62 63 #define MVMEBUS_AM2CAP(am) (_mvmebus_am_cap[((am) & \ 64 (VME_AM_MODEMASK | VME_AM_PRIVMASK))]) 65 66 67 /* 68 * This records VMEbus-specific details of a region of bus_space_map'd 69 * VMEbus address space. 70 */ 71 struct mvmebus_mapresc { 72 bus_space_handle_t mr_handle; 73 bus_addr_t mr_addr; 74 bus_size_t mr_size; 75 vme_am_t mr_am; 76 vme_datasize_t mr_datasize; 77 int mr_range; 78 }; 79 80 81 /* 82 * This records the VMEbus-specific details of a region of phyisical 83 * memory accessible through a VMEbus slave map. 84 */ 85 struct mvmebus_dmamap { 86 vme_am_t vm_am; 87 vme_datasize_t vm_datasize; 88 vme_swap_t vm_swap; 89 struct mvmebus_range *vm_slave; 90 }; 91 92 93 struct mvmebus_softc { 94 device_t sc_dev; 95 bus_space_tag_t sc_bust; 96 bus_dma_tag_t sc_dmat; 97 short sc_irqref[8]; 98 void *sc_chip; 99 int sc_nmasters; 100 struct mvmebus_range *sc_masters; 101 int sc_nslaves; 102 struct mvmebus_range *sc_slaves; 103 struct evcnt sc_evcnt[7]; 104 void (*sc_intr_establish)(void *, int, int, int, int, 105 int (*)(void *), void *, struct evcnt *); 106 void (*sc_intr_disestablish)(void *, int, int, int, 107 struct evcnt *); 108 struct vme_chipset_tag sc_vct; 109 struct mvme68k_bus_dma_tag sc_mvmedmat; 110 }; 111 112 113 void mvmebus_attach(struct mvmebus_softc *); 114 int mvmebus_map(void *, vme_addr_t, vme_size_t, vme_am_t, 115 vme_datasize_t, vme_swap_t, bus_space_tag_t *, 116 bus_space_handle_t *, vme_mapresc_t *); 117 void mvmebus_unmap(void *, vme_mapresc_t); 118 int mvmebus_probe(void *, vme_addr_t, vme_size_t, 119 vme_am_t, vme_datasize_t, 120 int (*) (void *, bus_space_tag_t, bus_space_handle_t), void *arg); 121 int mvmebus_intmap(void *, int, int, vme_intr_handle_t *); 122 const struct evcnt *mvmebus_intr_evcnt(void *, vme_intr_handle_t); 123 void * mvmebus_intr_establish(void *, vme_intr_handle_t, int, 124 int (*) (void *), void *); 125 void mvmebus_intr_disestablish(void *, vme_intr_handle_t); 126 127 int mvmebus_dmamap_create(void *, vme_size_t, vme_am_t, vme_datasize_t, 128 vme_swap_t, int, vme_size_t, vme_addr_t, int, bus_dmamap_t *); 129 void mvmebus_dmamap_destroy(void *, bus_dmamap_t); 130 int mvmebus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, 131 void *, bus_size_t, struct proc *, int); 132 int mvmebus_dmamap_load_mbuf(bus_dma_tag_t, 133 bus_dmamap_t, struct mbuf *, int); 134 int mvmebus_dmamap_load_uio(bus_dma_tag_t, 135 bus_dmamap_t, struct uio *, int); 136 int mvmebus_dmamap_load_raw(bus_dma_tag_t, 137 bus_dmamap_t, bus_dma_segment_t *, int, bus_size_t, int); 138 void mvmebus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t); 139 void mvmebus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, 140 bus_size_t, int); 141 142 int mvmebus_dmamem_alloc(void *, vme_size_t, vme_am_t, vme_datasize_t, 143 vme_swap_t, bus_dma_segment_t *, int, int *, int); 144 void mvmebus_dmamem_free(void *, bus_dma_segment_t *, int); 145 int mvmebus_dmamem_map(bus_dma_tag_t, bus_dma_segment_t *, int, 146 size_t, void **, int); 147 void mvmebus_dmamem_unmap(bus_dma_tag_t, void *, size_t); 148 paddr_t mvmebus_dmamem_mmap(bus_dma_tag_t, bus_dma_segment_t *, int, 149 off_t, int, int); 150 151 extern vme_am_t _mvmebus_am_cap[]; 152 extern const char *mvmebus_irq_name[]; 153 154 #endif /* _MVME_MVMEBUS_H */ 155
Indexes created Mon Sep 22 10:09:38 GMT 2025