1 /* $NetBSD: mvmebus.h,v 1.1 2002/02/12 20:38:48 scw 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _MVME_MVMEBUS_H 40 #define _MVME_MVMEBUS_H 41 42 /* 43 * VMEbus master and slave windows are described using 44 * instances of this structure. 45 * 46 * The chip-specific code records the details of the available mappings 47 * for the MVME board. 48 */ 49 struct mvmebus_range { 50 vme_am_t vr_am; /* Address modifier (A16, A24, A32) */ 51 vme_datasize_t vr_datasize; /* Datasize: logical OR of D8,D16,D32 */ 52 paddr_t vr_locstart; /* CPU-relative address of mapping */ 53 paddr_t vr_mask; /* Mask to apply to this mapping */ 54 vme_addr_t vr_vmestart; /* VMEbus start address */ 55 vme_addr_t vr_vmeend; /* VMEbus end address */ 56 }; 57 58 /* Assigned to vr_am to specify the mapping is not valid */ 59 #define MVMEBUS_AM_DISABLED ((vme_am_t)-1) 60 61 /* For slave mappings, these specify the slave's capabilities */ 62 #define MVMEBUS_AM_CAP_DATA 0x0100 63 #define MVMEBUS_AM_CAP_PROG 0x0200 64 #define MVMEBUS_AM_CAP_BLK 0x0400 65 #define MVMEBUS_AM_CAP_BLKD64 0x0800 66 #define MVMEBUS_AM_CAP_USER 0x1000 67 #define MVMEBUS_AM_CAP_SUPER 0x2000 68 #define MVMEBUS_AM_HAS_CAP(x) (((x) & 0x3f00) != 0) 69 70 #define MVMEBUS_AM2CAP(am) (_mvmebus_am_cap[((am) & \ 71 (VME_AM_MODEMASK | VME_AM_PRIVMASK))]) 72 73 74 /* 75 * This records VMEbus-specific details of a region of bus_space_map'd 76 * VMEbus address space. 77 */ 78 struct mvmebus_mapresc { 79 bus_space_handle_t mr_handle; 80 bus_addr_t mr_addr; 81 bus_size_t mr_size; 82 vme_am_t mr_am; 83 vme_datasize_t mr_datasize; 84 int mr_range; 85 }; 86 87 88 /* 89 * This records the VMEbus-specific details of a region of phyisical 90 * memory accessible through a VMEbus slave map. 91 */ 92 struct mvmebus_dmamap { 93 vme_am_t vm_am; 94 vme_datasize_t vm_datasize; 95 vme_swap_t vm_swap; 96 struct mvmebus_range *vm_slave; 97 }; 98 99 100 struct mvmebus_softc { 101 struct device sc_dev; 102 bus_space_tag_t sc_bust; 103 bus_dma_tag_t sc_dmat; 104 short sc_irqref[8]; 105 void *sc_chip; 106 int sc_nmasters; 107 struct mvmebus_range *sc_masters; 108 int sc_nslaves; 109 struct mvmebus_range *sc_slaves; 110 struct evcnt sc_evcnt[7]; 111 void (*sc_intr_establish)(void *, int, int, int, int, 112 int (*)(void *), void *, struct evcnt *); 113 void (*sc_intr_disestablish)(void *, int, int, int, 114 struct evcnt *); 115 struct vme_chipset_tag sc_vct; 116 struct mvme68k_bus_dma_tag sc_mvmedmat; 117 }; 118 119 120 void mvmebus_attach(struct mvmebus_softc *); 121 int mvmebus_map(void *, vme_addr_t, vme_size_t, vme_am_t, 122 vme_datasize_t, vme_swap_t, bus_space_tag_t *, 123 bus_space_handle_t *, vme_mapresc_t *); 124 void mvmebus_unmap(void *, vme_mapresc_t); 125 int mvmebus_probe(void *, vme_addr_t, vme_size_t, 126 vme_am_t, vme_datasize_t, 127 int (*) (void *, bus_space_tag_t, bus_space_handle_t), void *arg); 128 int mvmebus_intmap(void *, int, int, vme_intr_handle_t *); 129 const struct evcnt *mvmebus_intr_evcnt(void *, vme_intr_handle_t); 130 void * mvmebus_intr_establish(void *, vme_intr_handle_t, int, 131 int (*) (void *), void *); 132 void mvmebus_intr_disestablish(void *, vme_intr_handle_t); 133 134 int mvmebus_dmamap_create(void *, vme_size_t, vme_am_t, vme_datasize_t, 135 vme_swap_t, int, vme_size_t, vme_addr_t, int, bus_dmamap_t *); 136 void mvmebus_dmamap_destroy(void *, bus_dmamap_t); 137 int mvmebus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, 138 void *, bus_size_t, struct proc *, int); 139 int mvmebus_dmamap_load_mbuf(bus_dma_tag_t, 140 bus_dmamap_t, struct mbuf *, int); 141 int mvmebus_dmamap_load_uio(bus_dma_tag_t, 142 bus_dmamap_t, struct uio *, int); 143 int mvmebus_dmamap_load_raw(bus_dma_tag_t, 144 bus_dmamap_t, bus_dma_segment_t *, int, bus_size_t, int); 145 void mvmebus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t); 146 void mvmebus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, 147 bus_size_t, int); 148 149 int mvmebus_dmamem_alloc(void *, vme_size_t, vme_am_t, vme_datasize_t, 150 vme_swap_t, bus_dma_segment_t *, int, int *, int); 151 void mvmebus_dmamem_free(void *, bus_dma_segment_t *, int); 152 int mvmebus_dmamem_map(bus_dma_tag_t, bus_dma_segment_t *, int, 153 size_t, caddr_t *, int); 154 void mvmebus_dmamem_unmap(bus_dma_tag_t, caddr_t, size_t); 155 paddr_t mvmebus_dmamem_mmap(bus_dma_tag_t, bus_dma_segment_t *, int, 156 off_t, int, int); 157 158 extern vme_am_t _mvmebus_am_cap[]; 159 extern const char *mvmebus_irq_name[]; 160 161 #endif /* _MVME_MVMEBUS_H */ 162