1 /*- 2 * Copyright (c) 2015 M. Warner Losh <imp@FreeBSD.org> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice unmodified, this list of conditions, and the following 9 * disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 #ifndef DEV_OW_OWN_H 29 #define DEV_OW_OWN_H 1 30 31 #include "own_if.h" 32 33 34 #define READ_ROM 0x33 35 #define MATCH_ROM 0x55 36 #define SKIP_ROM 0xcc 37 #define ALARM_SEARCH 0xec 38 #define SEARCH_ROM 0xf0 39 40 static inline int 41 own_send_command(device_t pdev, struct ow_cmd *cmd) 42 { 43 device_t ndev = device_get_parent(pdev); 44 45 return OWN_SEND_COMMAND(ndev, pdev, cmd); 46 } 47 48 /* 49 * How args for own_acquire_bus 50 */ 51 #define OWN_WAIT 1 52 #define OWN_DONTWAIT 2 53 54 static inline int 55 own_acquire_bus(device_t pdev, int how) 56 { 57 device_t ndev = device_get_parent(pdev); 58 59 return OWN_ACQUIRE_BUS(ndev, pdev, how); 60 } 61 62 static inline void 63 own_release_bus(device_t pdev) 64 { 65 device_t ndev = device_get_parent(pdev); 66 67 OWN_RELEASE_BUS(ndev, pdev); 68 } 69 70 static inline uint8_t 71 own_crc(device_t pdev, uint8_t *buffer, size_t len) 72 { 73 device_t ndev = device_get_parent(pdev); 74 75 return OWN_CRC(ndev, pdev, buffer, len); 76 } 77 78 static inline void 79 own_self_command(device_t pdev, struct ow_cmd *cmd, uint8_t xpt_cmd) 80 { 81 uint8_t *mep; 82 83 memset(cmd, 0, sizeof(*cmd)); 84 mep = ow_get_romid(pdev); 85 cmd->rom_cmd[0] = MATCH_ROM; 86 memcpy(&cmd->rom_cmd[1], mep, sizeof(romid_t)); 87 cmd->rom_len = 1 + sizeof(romid_t); 88 cmd->xpt_cmd[0] = xpt_cmd; 89 cmd->xpt_len = 1; 90 } 91 92 static inline int 93 own_command_wait(device_t pdev, struct ow_cmd *cmd) 94 { 95 int rv; 96 97 rv = own_acquire_bus(pdev, OWN_WAIT); 98 if (rv != 0) 99 return rv; 100 rv = own_send_command(pdev, cmd); 101 own_release_bus(pdev); 102 return rv; 103 } 104 105 #endif /* DEV_OW_OWLL_H */ 106