2 * Char device interface.
4 * Copyright (C) 2005-2006 Kristian Hoegsberg <krh@bitplanet.net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 #ifndef _LINUX_FIREWIRE_CDEV_H
22 #define _LINUX_FIREWIRE_CDEV_H
24 #include <linux/ioctl.h>
25 #include <linux/types.h>
26 #include <linux/firewire-constants.h>
28 #define FW_CDEV_EVENT_BUS_RESET 0x00
29 #define FW_CDEV_EVENT_RESPONSE 0x01
30 #define FW_CDEV_EVENT_REQUEST 0x02
31 #define FW_CDEV_EVENT_ISO_INTERRUPT 0x03
33 /* The 'closure' fields are for user space to use. Data passed in the
34 * 'closure' field for a request will be returned in the corresponding
35 * event. It's a 64-bit type so that it's a fixed size type big
36 * enough to hold a pointer on all platforms. */
38 struct fw_cdev_event_common {
43 struct fw_cdev_event_bus_reset {
54 struct fw_cdev_event_response {
62 struct fw_cdev_event_request {
72 struct fw_cdev_event_iso_interrupt {
76 __u32 header_length; /* Length in bytes of following headers. */
81 struct fw_cdev_event_common common;
82 struct fw_cdev_event_bus_reset bus_reset;
83 struct fw_cdev_event_response response;
84 struct fw_cdev_event_request request;
85 struct fw_cdev_event_iso_interrupt iso_interrupt;
88 #define FW_CDEV_IOC_GET_INFO _IOWR('#', 0x00, struct fw_cdev_get_info)
89 #define FW_CDEV_IOC_SEND_REQUEST _IOW('#', 0x01, struct fw_cdev_send_request)
90 #define FW_CDEV_IOC_ALLOCATE _IOWR('#', 0x02, struct fw_cdev_allocate)
91 #define FW_CDEV_IOC_DEALLOCATE _IOW('#', 0x03, struct fw_cdev_deallocate)
92 #define FW_CDEV_IOC_SEND_RESPONSE _IOW('#', 0x04, struct fw_cdev_send_response)
93 #define FW_CDEV_IOC_INITIATE_BUS_RESET _IOW('#', 0x05, struct fw_cdev_initiate_bus_reset)
94 #define FW_CDEV_IOC_ADD_DESCRIPTOR _IOWR('#', 0x06, struct fw_cdev_add_descriptor)
95 #define FW_CDEV_IOC_REMOVE_DESCRIPTOR _IOW('#', 0x07, struct fw_cdev_remove_descriptor)
97 #define FW_CDEV_IOC_CREATE_ISO_CONTEXT _IOWR('#', 0x08, struct fw_cdev_create_iso_context)
98 #define FW_CDEV_IOC_QUEUE_ISO _IOWR('#', 0x09, struct fw_cdev_queue_iso)
99 #define FW_CDEV_IOC_START_ISO _IOW('#', 0x0a, struct fw_cdev_start_iso)
100 #define FW_CDEV_IOC_STOP_ISO _IOW('#', 0x0b, struct fw_cdev_stop_iso)
102 /* FW_CDEV_VERSION History
104 * 1 Feb 18, 2007: Initial version.
106 #define FW_CDEV_VERSION 1
108 struct fw_cdev_get_info {
109 /* The version field is just a running serial number. We
110 * never break backwards compatibility. Userspace passes in
111 * the version it expects and the kernel passes back the
112 * highest version it can provide. Even if the structs in
113 * this interface are extended in a later version, the kernel
114 * will not copy back more data than what was present in the
115 * interface version userspace expects. */
118 /* If non-zero, at most rom_length bytes of config rom will be
119 * copied into that user space address. In either case,
120 * rom_length is updated with the actual length of the config
125 /* If non-zero, a fw_cdev_event_bus_reset struct will be
126 * copied here with the current state of the bus. This does
127 * not cause a bus reset to happen. The value of closure in
128 * this and sub-sequent bus reset events is set to
129 * bus_reset_closure. */
131 __u64 bus_reset_closure;
133 /* The index of the card this devices belongs to. */
137 struct fw_cdev_send_request {
146 struct fw_cdev_send_response {
153 struct fw_cdev_allocate {
160 struct fw_cdev_deallocate {
164 #define FW_CDEV_LONG_RESET 0
165 #define FW_CDEV_SHORT_RESET 1
167 struct fw_cdev_initiate_bus_reset {
171 struct fw_cdev_add_descriptor {
179 struct fw_cdev_remove_descriptor {
183 #define FW_CDEV_ISO_CONTEXT_TRANSMIT 0
184 #define FW_CDEV_ISO_CONTEXT_RECEIVE 1
186 #define FW_CDEV_ISO_CONTEXT_MATCH_TAG0 1
187 #define FW_CDEV_ISO_CONTEXT_MATCH_TAG1 2
188 #define FW_CDEV_ISO_CONTEXT_MATCH_TAG2 4
189 #define FW_CDEV_ISO_CONTEXT_MATCH_TAG3 8
190 #define FW_CDEV_ISO_CONTEXT_MATCH_ALL_TAGS 15
192 struct fw_cdev_create_iso_context {
201 #define FW_CDEV_ISO_PAYLOAD_LENGTH(v) (v)
202 #define FW_CDEV_ISO_INTERRUPT (1 << 16)
203 #define FW_CDEV_ISO_SKIP (1 << 17)
204 #define FW_CDEV_ISO_TAG(v) ((v) << 18)
205 #define FW_CDEV_ISO_SY(v) ((v) << 20)
206 #define FW_CDEV_ISO_HEADER_LENGTH(v) ((v) << 24)
208 struct fw_cdev_iso_packet {
213 struct fw_cdev_queue_iso {
220 struct fw_cdev_start_iso {
227 struct fw_cdev_stop_iso {
231 #endif /* _LINUX_FIREWIRE_CDEV_H */