1 /*- 2 * Copyright (c) 2014 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/types.h> 31 #include <errno.h> 32 33 #include "bus_space.h" 34 #include "libbus_space.h" 35 36 int 37 bus_space_read_1(int rid, long ofs) 38 { 39 uint8_t val; 40 41 return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int)val); 42 } 43 44 int 45 bus_space_read_2(int rid, long ofs) 46 { 47 uint16_t val; 48 49 return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int)val); 50 } 51 52 int64_t 53 bus_space_read_4(int rid, long ofs) 54 { 55 uint32_t val; 56 57 return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int64_t)val); 58 } 59 60 int 61 bus_space_write_1(int rid, long ofs, uint8_t val) 62 { 63 64 return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0); 65 } 66 67 int 68 bus_space_write_2(int rid, long ofs, uint16_t val) 69 { 70 71 return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0); 72 } 73 74 int 75 bus_space_write_4(int rid, long ofs, uint32_t val) 76 { 77 78 return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0); 79 } 80 81 int 82 bus_space_map(const char *dev) 83 { 84 85 return (bs_map(dev)); 86 } 87 88 int 89 bus_space_unmap(int rid) 90 { 91 92 return ((!bs_unmap(rid)) ? errno : 0); 93 } 94 95 int 96 bus_space_subregion(int rid, long ofs, long sz) 97 { 98 99 return (bs_subregion(rid, ofs, sz)); 100 } 101