1/* $NetBSD: obio_space.c,v 1.6 2003/07/15 00:25:05 lukem Exp $ */ 2 3/*- 4 * Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38/* 39 * bus_space functions for PXA devices 40 */ 41 42#include <sys/cdefs.h> 43__FBSDID("$FreeBSD: stable/11/sys/arm/xscale/pxa/pxa_space.c 314506 2017-03-01 19:55:04Z ian $"); 44 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/bus.h> 48#include <sys/kernel.h> 49#include <sys/malloc.h> 50 51#include <machine/bus.h> 52 53#include <arm/xscale/pxa/pxareg.h> 54#include <arm/xscale/pxa/pxavar.h> 55 56static MALLOC_DEFINE(M_PXATAG, "PXA bus_space tags", "Bus_space tags for PXA"); 57 58/* Prototypes for all the bus_space structure functions */ 59bs_protos(generic); 60bs_protos(pxa); 61 62/* 63 * The obio bus space tag. This is constant for all instances, so 64 * we never have to explicitly "create" it. 65 */ 66struct bus_space _base_tag = { 67 /* cookie */ 68 .bs_privdata = NULL, 69 70 /* mapping/unmapping */ 71 .bs_map = generic_bs_map, 72 .bs_unmap = generic_bs_unmap, 73 .bs_subregion = generic_bs_subregion, 74 75 /* allocation/deallocation */ 76 .bs_alloc = generic_bs_alloc, 77 .bs_free = generic_bs_free, 78 79 /* barrier */ 80 .bs_barrier = generic_bs_barrier, 81 82 /* read (single) */ 83 .bs_r_1 = pxa_bs_r_1, 84 .bs_r_2 = pxa_bs_r_2, 85 .bs_r_4 = pxa_bs_r_4, 86 .bs_r_8 = BS_UNIMPLEMENTED, 87 88 /* read multiple */ 89 .bs_rm_1 = pxa_bs_rm_1, 90 .bs_rm_2 = pxa_bs_rm_2, 91 .bs_rm_4 = BS_UNIMPLEMENTED, 92 .bs_rm_8 = BS_UNIMPLEMENTED, 93 94 /* read region */ 95 .bs_rr_1 = pxa_bs_rr_1, 96 .bs_rr_2 = BS_UNIMPLEMENTED, 97 .bs_rr_4 = BS_UNIMPLEMENTED, 98 .bs_rr_8 = BS_UNIMPLEMENTED, 99 100 /* write (single) */ 101 .bs_w_1 = pxa_bs_w_1, 102 .bs_w_2 = pxa_bs_w_2, 103 .bs_w_4 = pxa_bs_w_4, 104 .bs_w_8 = BS_UNIMPLEMENTED, 105 106 /* write multiple */ 107 .bs_wm_1 = pxa_bs_wm_1, 108 .bs_wm_2 = pxa_bs_wm_2, 109 .bs_wm_4 = BS_UNIMPLEMENTED, 110 .bs_wm_8 = BS_UNIMPLEMENTED, 111 112 /* write region */ 113 .bs_wr_1 = BS_UNIMPLEMENTED, 114 .bs_wr_2 = BS_UNIMPLEMENTED, 115 .bs_wr_4 = BS_UNIMPLEMENTED, 116 .bs_wr_8 = BS_UNIMPLEMENTED, 117 118 /* set multiple */ 119 .bs_sm_1 = BS_UNIMPLEMENTED, 120 .bs_sm_2 = BS_UNIMPLEMENTED, 121 .bs_sm_4 = BS_UNIMPLEMENTED, 122 .bs_sm_8 = BS_UNIMPLEMENTED, 123 124 /* set region */ 125 .bs_sr_1 = BS_UNIMPLEMENTED, 126 .bs_sr_2 = BS_UNIMPLEMENTED, 127 .bs_sr_4 = BS_UNIMPLEMENTED, 128 .bs_sr_8 = BS_UNIMPLEMENTED, 129 130 /* copy */ 131 .bs_c_1 = BS_UNIMPLEMENTED, 132 .bs_c_2 = BS_UNIMPLEMENTED, 133 .bs_c_4 = BS_UNIMPLEMENTED, 134 .bs_c_8 = BS_UNIMPLEMENTED, 135 136 /* read stream (single) */ 137 .bs_r_1_s = BS_UNIMPLEMENTED, 138 .bs_r_2_s = BS_UNIMPLEMENTED, 139 .bs_r_4_s = BS_UNIMPLEMENTED, 140 .bs_r_8_s = BS_UNIMPLEMENTED, 141 142 /* read multiple stream */ 143 .bs_rm_1_s = BS_UNIMPLEMENTED, 144 .bs_rm_2_s = BS_UNIMPLEMENTED, 145 .bs_rm_4_s = BS_UNIMPLEMENTED, 146 .bs_rm_8_s = BS_UNIMPLEMENTED, 147 148 /* read region stream */ 149 .bs_rr_1_s = BS_UNIMPLEMENTED, 150 .bs_rr_2_s = BS_UNIMPLEMENTED, 151 .bs_rr_4_s = BS_UNIMPLEMENTED, 152 .bs_rr_8_s = BS_UNIMPLEMENTED, 153 154 /* write stream (single) */ 155 .bs_w_1_s = BS_UNIMPLEMENTED, 156 .bs_w_2_s = BS_UNIMPLEMENTED, 157 .bs_w_4_s = BS_UNIMPLEMENTED, 158 .bs_w_8_s = BS_UNIMPLEMENTED, 159 160 /* write multiple stream */ 161 .bs_wm_1_s = BS_UNIMPLEMENTED, 162 .bs_wm_2_s = BS_UNIMPLEMENTED, 163 .bs_wm_4_s = BS_UNIMPLEMENTED, 164 .bs_wm_8_s = BS_UNIMPLEMENTED, 165 166 /* write region stream */ 167 .bs_wr_1_s = BS_UNIMPLEMENTED, 168 .bs_wr_2_s = BS_UNIMPLEMENTED, 169 .bs_wr_4_s = BS_UNIMPLEMENTED, 170 .bs_wr_8_s = BS_UNIMPLEMENTED, 171}; 172 173static struct bus_space _obio_tag; 174 175bus_space_tag_t base_tag = &_base_tag; 176bus_space_tag_t obio_tag = NULL; 177 178void 179pxa_obio_tag_init(void) 180{ 181 182 bcopy(&_base_tag, &_obio_tag, sizeof(struct bus_space)); 183 _obio_tag.bs_privdata = (void *)PXA2X0_PERIPH_OFFSET; 184 obio_tag = &_obio_tag; 185} 186 187bus_space_tag_t 188pxa_bus_tag_alloc(bus_addr_t offset) 189{ 190 struct bus_space *tag; 191 192 tag = (struct bus_space *)malloc(sizeof(struct bus_space), M_PXATAG, 193 M_WAITOK); 194 if (tag == NULL) { 195 return (NULL); 196 } 197 198 bcopy(&_base_tag, tag, sizeof(struct bus_space)); 199 tag->bs_privdata = (void *)offset; 200 201 return ((bus_space_tag_t)tag); 202} 203 204 205#define READ_SINGLE(type, proto, base) \ 206 type \ 207 proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset) \ 208 { \ 209 bus_addr_t tag_offset; \ 210 type value; \ 211 tag_offset = (bus_addr_t)tag->bs_privdata; \ 212 value = base(NULL, bsh + tag_offset, offset); \ 213 return (value); \ 214 } 215 216READ_SINGLE(u_int8_t, pxa_bs_r_1, generic_bs_r_1) 217READ_SINGLE(u_int16_t, pxa_bs_r_2, generic_bs_r_2) 218READ_SINGLE(u_int32_t, pxa_bs_r_4, generic_bs_r_4) 219 220#undef READ_SINGLE 221 222#define WRITE_SINGLE(type, proto, base) \ 223 void \ 224 proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, \ 225 type value) \ 226 { \ 227 bus_addr_t tag_offset; \ 228 tag_offset = (bus_addr_t)tag->bs_privdata; \ 229 base(NULL, bsh + tag_offset, offset, value); \ 230 } 231 232WRITE_SINGLE(u_int8_t, pxa_bs_w_1, generic_bs_w_1) 233WRITE_SINGLE(u_int16_t, pxa_bs_w_2, generic_bs_w_2) 234WRITE_SINGLE(u_int32_t, pxa_bs_w_4, generic_bs_w_4) 235 236#undef WRITE_SINGLE 237 238#define READ_MULTI(type, proto, base) \ 239 void \ 240 proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, \ 241 type *dest, bus_size_t count) \ 242 { \ 243 bus_addr_t tag_offset; \ 244 tag_offset = (bus_addr_t)tag->bs_privdata; \ 245 base(NULL, bsh + tag_offset, offset, dest, count); \ 246 } 247 248READ_MULTI(u_int8_t, pxa_bs_rm_1, generic_bs_rm_1) 249READ_MULTI(u_int16_t, pxa_bs_rm_2, generic_bs_rm_2) 250 251READ_MULTI(u_int8_t, pxa_bs_rr_1, generic_bs_rr_1) 252 253#undef READ_MULTI 254 255#define WRITE_MULTI(type, proto, base) \ 256 void \ 257 proto(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t offset, \ 258 const type *src, bus_size_t count) \ 259 { \ 260 bus_addr_t tag_offset; \ 261 tag_offset = (bus_addr_t)tag->bs_privdata; \ 262 base(NULL, bsh + tag_offset, offset, src, count); \ 263 } 264 265WRITE_MULTI(u_int8_t, pxa_bs_wm_1, generic_bs_wm_1) 266WRITE_MULTI(u_int16_t, pxa_bs_wm_2, generic_bs_wm_2) 267 268#undef WRITE_MULTI 269