bus_funcs.h revision 1.1
1 /* $NetBSD: bus_funcs.h,v 1.1 2011/07/01 17:10:01 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997, 1998, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1996 Charles M. Hannum. All rights reserved. 35 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions and the following disclaimer. 42 * 2. Redistributions in binary form must reproduce the above copyright 43 * notice, this list of conditions and the following disclaimer in the 44 * documentation and/or other materials provided with the distribution. 45 * 3. All advertising materials mentioning features or use of this software 46 * must display the following acknowledgement: 47 * This product includes software developed by Christopher G. Demetriou 48 * for the NetBSD Project. 49 * 4. The name of the author may not be used to endorse or promote products 50 * derived from this software without specific prior written permission 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 53 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 55 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 56 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 57 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 61 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 62 */ 63 64 #ifndef _SPARC_BUS_FUNCS_H_ 65 #define _SPARC_BUS_FUNCS_H_ 66 67 bus_space_tag_t bus_space_tag_alloc(bus_space_tag_t, void *); 68 int bus_space_translate_address_generic(struct openprom_range *, 69 int, bus_addr_t *); 70 71 /* 72 * Bus space function prototypes. 73 * In bus_space_map2(), supply a special virtual address only if you 74 * get it from ../sparc/vaddrs.h. 75 */ 76 int bus_space_map2( 77 bus_space_tag_t, 78 bus_addr_t, 79 bus_size_t, 80 int, /*flags*/ 81 vaddr_t, /*preferred vaddr*/ 82 bus_space_handle_t *); 83 void *bus_intr_establish( 84 bus_space_tag_t, 85 int, /*bus-specific intr*/ 86 int, /*device class level, 87 see machine/intr.h*/ 88 int (*)(void *), /*handler*/ 89 void *); /*handler arg*/ 90 void *bus_intr_establish2( 91 bus_space_tag_t, 92 int, /*bus-specific intr*/ 93 int, /*device class level, 94 see machine/intr.h*/ 95 int (*)(void *), /*handler*/ 96 void *, /*handler arg*/ 97 void (*)(void)); /*optional fast vector*/ 98 99 #define bus_space_vaddr(t, h) ((void)(t), (void *)(h)) 100 101 /* 102 * Device space probe assistant. 103 * The optional callback function's arguments are: 104 * the temporary virtual address 105 * the passed `arg' argument 106 */ 107 int bus_space_probe( 108 bus_space_tag_t, 109 bus_addr_t, 110 bus_size_t, /* probe size */ 111 size_t, /* offset */ 112 int, /* flags */ 113 int (*)(void *, void *), /* callback function */ 114 void *); /* callback arg */ 115 116 /* 117 * u_intN_t bus_space_read_N(bus_space_tag_t tag, 118 * bus_space_handle_t bsh, bus_size_t offset); 119 * 120 * Read a 1, 2, 4, or 8 byte quantity from bus space 121 * described by tag/handle/offset. 122 */ 123 124 #define bus_space_read_1_real(t, h, o) \ 125 ((void)(t), *(volatile uint8_t *)((h) + (o))) 126 127 #define bus_space_read_2_real(t, h, o) \ 128 ((void)(t), *(volatile uint16_t *)((h) + (o))) 129 130 #define bus_space_read_4_real(t, h, o) \ 131 ((void)(t), *(volatile uint32_t *)((h) + (o))) 132 133 #define bus_space_read_8_real(t, h, o) \ 134 ((void)(t), *(volatile uint64_t *)((h) + (o))) 135 136 #define bus_space_read_stream_1 bus_space_read_1_real 137 #define bus_space_read_stream_2 bus_space_read_2_real 138 #define bus_space_read_stream_4 bus_space_read_4_real 139 #define bus_space_read_stream_8 bus_space_read_8_real 140 141 142 /* 143 * void bus_space_write_N(bus_space_tag_t tag, 144 * bus_space_handle_t bsh, bus_size_t offset, 145 * u_intN_t value); 146 * 147 * Write the 1, 2, 4, or 8 byte value `value' to bus space 148 * described by tag/handle/offset. 149 */ 150 151 #define bus_space_write_1_real(t, h, o, v) do { \ 152 ((void)(t), (void)(*(volatile uint8_t *)((h) + (o)) = (v))); \ 153 } while (/* CONSTCOND */ 0) 154 155 #define bus_space_write_2_real(t, h, o, v) do { \ 156 ((void)(t), (void)(*(volatile uint16_t *)((h) + (o)) = (v))); \ 157 } while (/* CONSTCOND */ 0) 158 159 #define bus_space_write_4_real(t, h, o, v) do { \ 160 ((void)(t), (void)(*(volatile uint32_t *)((h) + (o)) = (v))); \ 161 } while (/* CONSTCOND */ 0) 162 163 #define bus_space_write_8_real(t, h, o, v) do { \ 164 ((void)(t), (void)(*(volatile uint64_t *)((h) + (o)) = (v))); \ 165 } while (/* CONSTCOND */ 0) 166 167 #define bus_space_write_stream_1 bus_space_write_1_real 168 #define bus_space_write_stream_2 bus_space_write_2_real 169 #define bus_space_write_stream_4 bus_space_write_4_real 170 #define bus_space_write_stream_8 bus_space_write_8_real 171 172 #define bus_space_read_multi_stream_1 bus_space_read_multi_1 173 #define bus_space_write_multi_stream_1 bus_space_write_multi_1 174 175 /* Forwards needed by prototypes below. */ 176 struct mbuf; 177 struct uio; 178 179 #define bus_dmamap_create(t, s, n, m, b, f, p) \ 180 (*(t)->_dmamap_create)((t), (s), (n), (m), (b), (f), (p)) 181 #define bus_dmamap_destroy(t, p) \ 182 (*(t)->_dmamap_destroy)((t), (p)) 183 #define bus_dmamap_load(t, m, b, s, p, f) \ 184 (*(t)->_dmamap_load)((t), (m), (b), (s), (p), (f)) 185 #define bus_dmamap_load_mbuf(t, m, b, f) \ 186 (*(t)->_dmamap_load_mbuf)((t), (m), (b), (f)) 187 #define bus_dmamap_load_uio(t, m, u, f) \ 188 (*(t)->_dmamap_load_uio)((t), (m), (u), (f)) 189 #define bus_dmamap_load_raw(t, m, sg, n, s, f) \ 190 (*(t)->_dmamap_load_raw)((t), (m), (sg), (n), (s), (f)) 191 #define bus_dmamap_unload(t, p) \ 192 (*(t)->_dmamap_unload)((t), (p)) 193 #define bus_dmamap_sync(t, p, o, l, ops) \ 194 (void)((t)->_dmamap_sync ? \ 195 (*(t)->_dmamap_sync)((t), (p), (o), (l), (ops)) : (void)0) 196 197 #define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \ 198 (*(t)->_dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f)) 199 #define bus_dmamem_free(t, sg, n) \ 200 (*(t)->_dmamem_free)((t), (sg), (n)) 201 #define bus_dmamem_map(t, sg, n, s, k, f) \ 202 (*(t)->_dmamem_map)((t), (sg), (n), (s), (k), (f)) 203 #define bus_dmamem_unmap(t, k, s) \ 204 (*(t)->_dmamem_unmap)((t), (k), (s)) 205 #define bus_dmamem_mmap(t, sg, n, o, p, f) \ 206 (*(t)->_dmamem_mmap)((t), (sg), (n), (o), (p), (f)) 207 208 #define bus_dmatag_subregion(t, mna, mxa, nt, f) EOPNOTSUPP 209 #define bus_dmatag_destroy(t) 210 211 #ifdef _SPARC_BUS_DMA_PRIVATE 212 int _bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t, 213 bus_size_t, int, bus_dmamap_t *); 214 void _bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t); 215 int _bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t, 216 struct mbuf *, int); 217 int _bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t, 218 struct uio *, int); 219 int _bus_dmamap_load_raw(bus_dma_tag_t, bus_dmamap_t, 220 bus_dma_segment_t *, int, bus_size_t, int); 221 void _bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t); 222 void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, 223 bus_size_t, int); 224 225 int _bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size, 226 bus_size_t alignment, bus_size_t boundary, 227 bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags); 228 void _bus_dmamem_free(bus_dma_tag_t tag, bus_dma_segment_t *segs, 229 int nsegs); 230 void _bus_dmamem_unmap(bus_dma_tag_t tag, void *kva, 231 size_t size); 232 paddr_t _bus_dmamem_mmap(bus_dma_tag_t tag, bus_dma_segment_t *segs, 233 int nsegs, off_t off, int prot, int flags); 234 235 int _bus_dmamem_alloc_range(bus_dma_tag_t tag, bus_size_t size, 236 bus_size_t alignment, bus_size_t boundary, 237 bus_dma_segment_t *segs, int nsegs, int *rsegs, int flags, 238 vaddr_t low, vaddr_t high); 239 240 vaddr_t _bus_dma_valloc_skewed(size_t, u_long, u_long, u_long); 241 #endif /* _SPARC_BUS_DMA_PRIVATE */ 242 243 #endif /* _SPARC_BUS_FUNCS_H_ */ 244
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