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
own_send_command(device_t pdev,struct ow_cmd * cmd)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
own_acquire_bus(device_t pdev,int how)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
own_release_bus(device_t pdev)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
own_crc(device_t pdev,uint8_t * buffer,size_t len)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
own_self_command(device_t pdev,struct ow_cmd * cmd,uint8_t xpt_cmd)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
own_command_wait(device_t pdev,struct ow_cmd * cmd)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