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 26 #ifndef DEV_OW_OWN_H 27 #define DEV_OW_OWN_H 1 28 29 #include "own_if.h" 30 31 #define READ_ROM 0x33 32 #define MATCH_ROM 0x55 33 #define SKIP_ROM 0xcc 34 #define ALARM_SEARCH 0xec 35 #define SEARCH_ROM 0xf0 36 37 static inline int 38 own_send_command(device_t pdev, struct ow_cmd *cmd) 39 { 40 device_t ndev = device_get_parent(pdev); 41 42 return OWN_SEND_COMMAND(ndev, pdev, cmd); 43 } 44 45 /* 46 * How args for own_acquire_bus 47 */ 48 #define OWN_WAIT 1 49 #define OWN_DONTWAIT 2 50 51 static inline int 52 own_acquire_bus(device_t pdev, int how) 53 { 54 device_t ndev = device_get_parent(pdev); 55 56 return OWN_ACQUIRE_BUS(ndev, pdev, how); 57 } 58 59 static inline void 60 own_release_bus(device_t pdev) 61 { 62 device_t ndev = device_get_parent(pdev); 63 64 OWN_RELEASE_BUS(ndev, pdev); 65 } 66 67 static inline uint8_t 68 own_crc(device_t pdev, uint8_t *buffer, size_t len) 69 { 70 device_t ndev = device_get_parent(pdev); 71 72 return OWN_CRC(ndev, pdev, buffer, len); 73 } 74 75 static inline void 76 own_self_command(device_t pdev, struct ow_cmd *cmd, uint8_t xpt_cmd) 77 { 78 uint8_t *mep; 79 80 memset(cmd, 0, sizeof(*cmd)); 81 mep = ow_get_romid(pdev); 82 cmd->rom_cmd[0] = MATCH_ROM; 83 memcpy(&cmd->rom_cmd[1], mep, sizeof(romid_t)); 84 cmd->rom_len = 1 + sizeof(romid_t); 85 cmd->xpt_cmd[0] = xpt_cmd; 86 cmd->xpt_len = 1; 87 } 88 89 static inline int 90 own_command_wait(device_t pdev, struct ow_cmd *cmd) 91 { 92 int rv; 93 94 rv = own_acquire_bus(pdev, OWN_WAIT); 95 if (rv != 0) 96 return rv; 97 rv = own_send_command(pdev, cmd); 98 own_release_bus(pdev); 99 return rv; 100 } 101 102 #endif /* DEV_OW_OWLL_H */ 103