4 * Copyright (c) 2003 Evgeniy Polyakov <zbr@ioremap.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #ifndef __W1_NETLINK_H
23 #define __W1_NETLINK_H
25 #include <asm/types.h>
26 #include <linux/connector.h>
31 * enum w1_cn_msg_flags - bitfield flags for struct cn_msg.flags
33 * @W1_CN_BUNDLE: Request bundling replies into fewer messagse. Be prepared
34 * to handle multiple struct cn_msg, struct w1_netlink_msg, and
35 * struct w1_netlink_cmd in one packet.
37 enum w1_cn_msg_flags {
42 * enum w1_netlink_message_types - message type
44 * @W1_SLAVE_ADD: notification that a slave device was added
45 * @W1_SLAVE_REMOVE: notification that a slave device was removed
46 * @W1_MASTER_ADD: notification that a new bus master was added
47 * @W1_MASTER_REMOVE: notification that a bus masterwas removed
48 * @W1_MASTER_CMD: initiate operations on a specific master
49 * @W1_SLAVE_CMD: sends reset, selects the slave, then does a read/write/touch
51 * @W1_LIST_MASTERS: used to determine the bus master identifiers
53 enum w1_netlink_message_types {
64 * struct w1_netlink_msg - holds w1 message type, id, and result
66 * @type: one of enum w1_netlink_message_types
67 * @status: kernel feedback for success 0 or errno failure value
68 * @len: length of data following w1_netlink_msg
69 * @id: union holding master bus id (msg.id) and slave device id (id[8]).
70 * @data: start address of any following data
72 * The base message structure for w1 messages over netlink.
73 * The netlink connector data sequence is, struct nlmsghdr, struct cn_msg,
74 * then one or more struct w1_netlink_msg (each with optional data).
92 * enum w1_commands - commands available for master or slave operations
94 * @W1_CMD_READ: read len bytes
95 * @W1_CMD_WRITE: write len bytes
96 * @W1_CMD_SEARCH: initiate a standard search, returns only the slave
97 * devices found during that search
98 * @W1_CMD_ALARM_SEARCH: search for devices that are currently alarming
99 * @W1_CMD_TOUCH: Touches a series of bytes.
100 * @W1_CMD_RESET: sends a bus reset on the given master
101 * @W1_CMD_SLAVE_ADD: adds a slave to the given master,
102 * 8 byte slave id at data[0]
103 * @W1_CMD_SLAVE_REMOVE: removes a slave to the given master,
104 * 8 byte slave id at data[0]
105 * @W1_CMD_LIST_SLAVES: list of slaves registered on this master
106 * @W1_CMD_MAX: number of available commands
122 * struct w1_netlink_cmd - holds the command and data
124 * @cmd: one of enum w1_commands
126 * @len: length of data following w1_netlink_cmd
127 * @data: start address of any following data
129 * One or more struct w1_netlink_cmd is placed starting at w1_netlink_msg.data
130 * each with optional data.
132 struct w1_netlink_cmd
142 void w1_netlink_send(struct w1_master *, struct w1_netlink_msg *);
143 int w1_init_netlink(void);
144 void w1_fini_netlink(void);
146 #endif /* __KERNEL__ */
147 #endif /* __W1_NETLINK_H */