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Current Path: /usr/include/linux

📁 ..
📄 a.out.h(7.15 KB)
📄 acct.h(3.41 KB)
📄 adb.h(1.05 KB)
📄 adfs_fs.h(856 B)
📄 affs_hardblocks.h(1.45 KB)
📄 agpgart.h(3.83 KB)
📄 aio_abi.h(3.04 KB)
📄 apm_bios.h(3.46 KB)
📄 arcfb.h(150 B)
📄 atalk.h(927 B)
📄 atm.h(7.62 KB)
📄 atm_eni.h(585 B)
📄 atm_he.h(343 B)
📄 atm_idt77105.h(892 B)
📄 atm_nicstar.h(1.19 KB)
📄 atm_tcp.h(1.5 KB)
📄 atm_zatm.h(1.57 KB)
📄 atmapi.h(889 B)
📄 atmarp.h(1.2 KB)
📄 atmbr2684.h(3.13 KB)
📄 atmclip.h(513 B)
📄 atmdev.h(7.42 KB)
📄 atmioc.h(1.55 KB)
📄 atmlec.h(2.5 KB)
📄 atmmpc.h(4.07 KB)
📄 atmppp.h(576 B)
📄 atmsap.h(4.79 KB)
📄 atmsvc.h(1.75 KB)
📄 audit.h(15.51 KB)
📄 auto_fs.h(2.29 KB)
📄 auto_fs4.h(4.03 KB)
📄 auxvec.h(1.35 KB)
📄 ax25.h(2.69 KB)
📄 b1lli.h(1.62 KB)
📄 baycom.h(820 B)
📄 bfs_fs.h(1.79 KB)
📄 binfmts.h(565 B)
📄 blk_types.h(6.94 KB)
📄 blkpg.h(1.56 KB)
📄 blktrace_api.h(4.37 KB)
📄 bpqether.h(952 B)
📄 bsg.h(2.33 KB)
📁 byteorder
📁 can
📄 can.h(3.25 KB)
📄 capability.h(10.34 KB)
📄 capi.h(2.99 KB)
📄 cciss_ioctl.h(5.69 KB)
📄 cdk.h(12.47 KB)
📄 cdrom.h(27.47 KB)
📄 cgroupstats.h(2.1 KB)
📄 chio.h(5.16 KB)
📄 cm4000_cs.h(1.68 KB)
📄 cn_proc.h(2.65 KB)
📄 coda.h(17.08 KB)
📄 coda_psdev.h(679 B)
📄 coff.h(12.12 KB)
📄 comstats.h(3.05 KB)
📄 connector.h(2.08 KB)
📄 const.h(682 B)
📄 cramfs_fs.h(2.86 KB)
📄 cuda.h(769 B)
📄 cyclades.h(16.65 KB)
📄 cycx_cfm.h(2.86 KB)
📄 dcbnl.h(21.6 KB)
📄 dccp.h(5.66 KB)
📄 dlm.h(2.47 KB)
📄 dlm_device.h(2.42 KB)
📄 dlm_netlink.h(1.04 KB)
📄 dlm_plock.h(806 B)
📄 dlmconstants.h(4.9 KB)
📄 dm-ioctl.h(10.42 KB)
📄 dm-log-userspace.h(14.82 KB)
📄 dn.h(4.42 KB)
📄 dqblk_xfs.h(6.79 KB)
📁 dvb
📄 edd.h(5.41 KB)
📄 efs_fs_sb.h(2.11 KB)
📄 elf-em.h(1.79 KB)
📄 elf-fdpic.h(2.5 KB)
📄 elf.h(10.97 KB)
📄 elfcore.h(2.86 KB)
📄 errno.h(79 B)
📄 errqueue.h(443 B)
📄 ethtool.h(33.37 KB)
📄 eventpoll.h(1.32 KB)
📄 ext2_fs.h(18.36 KB)
📄 fadvise.h(855 B)
📄 falloc.h(293 B)
📄 fb.h(15.64 KB)
📄 fcntl.h(1.57 KB)
📄 fd.h(11.29 KB)
📄 fdreg.h(5.23 KB)
📄 fib_rules.h(1.42 KB)
📄 fiemap.h(2.49 KB)
📄 filter.h(3.45 KB)
📄 firewire-cdev.h(24.47 KB)
📄 firewire-constants.h(1.93 KB)
📄 flat.h(2.04 KB)
📄 fs.h(18.47 KB)
📄 fuse.h(11.17 KB)
📄 futex.h(4.79 KB)
📄 gameport.h(816 B)
📄 gen_stats.h(1.27 KB)
📄 generic_serial.h(895 B)
📄 genetlink.h(1.64 KB)
📄 gfs2_ondisk.h(11.54 KB)
📄 gigaset_dev.h(981 B)
📄 hayesesp.h(230 B)
📁 hdlc
📄 hdlc.h(574 B)
📄 hdlcdrv.h(2.78 KB)
📄 hdreg.h(22.11 KB)
📄 hid.h(1.78 KB)
📄 hiddev.h(6.12 KB)
📄 hidraw.h(1.19 KB)
📄 hpet.h(686 B)
📄 hysdn_if.h(1.29 KB)
📄 i2c-dev.h(2.35 KB)
📄 i2c.h(6.48 KB)
📄 i2o-dev.h(11.22 KB)
📄 i8k.h(1.4 KB)
📄 icmp.h(2.82 KB)
📄 icmpv6.h(3.74 KB)
📄 if.h(8.47 KB)
📄 if_addr.h(1.42 KB)
📄 if_addrlabel.h(658 B)
📄 if_arcnet.h(3.63 KB)
📄 if_arp.h(5.97 KB)
📄 if_bonding.h(3.98 KB)
📄 if_bridge.h(3.72 KB)
📄 if_cablemodem.h(910 B)
📄 if_ec.h(901 B)
📄 if_eql.h(1.25 KB)
📄 if_ether.h(6.39 KB)
📄 if_fc.h(1.63 KB)
📄 if_fddi.h(3.61 KB)
📄 if_frad.h(2.87 KB)
📄 if_hippi.h(4.08 KB)
📄 if_infiniband.h(1.12 KB)
📄 if_link.h(11.79 KB)
📄 if_ltalk.h(125 B)
📄 if_packet.h(3.45 KB)
📄 if_phonet.h(337 B)
📄 if_plip.h(596 B)
📄 if_ppp.h(6.78 KB)
📄 if_pppol2tp.h(1.94 KB)
📄 if_pppox.h(3.68 KB)
📄 if_slip.h(809 B)
📄 if_strip.h(700 B)
📄 if_tr.h(3.12 KB)
📄 if_tun.h(2.94 KB)
📄 if_tunnel.h(1.42 KB)
📄 if_vlan.h(1.67 KB)
📄 igmp.h(2.86 KB)
📄 in.h(8.99 KB)
📄 in6.h(7.32 KB)
📄 in_route.h(873 B)
📄 inet_diag.h(2.4 KB)
📄 inotify.h(2.77 KB)
📄 input.h(26.95 KB)
📄 ioctl.h(100 B)
📄 ip.h(3.47 KB)
📄 ip6_tunnel.h(1.05 KB)
📄 ip_vs.h(12.29 KB)
📄 ipc.h(1.99 KB)
📄 ipmi.h(16.16 KB)
📄 ipmi_msgdefs.h(4.37 KB)
📄 ipsec.h(884 B)
📄 ipv6.h(2.82 KB)
📄 ipv6_route.h(1.58 KB)
📄 ipx.h(1.78 KB)
📄 irda.h(7.47 KB)
📄 irqnr.h(93 B)
📁 isdn
📄 isdn.h(5.55 KB)
📄 isdn_divertif.h(1.01 KB)
📄 isdn_ppp.h(1.82 KB)
📄 isdnif.h(2.25 KB)
📄 iso_fs.h(6.29 KB)
📄 ivtv.h(2.66 KB)
📄 ivtvfb.h(1.12 KB)
📄 ixjuser.h(24.53 KB)
📄 jffs2.h(6.79 KB)
📄 joystick.h(3.5 KB)
📄 kd.h(6.02 KB)
📄 kdev_t.h(298 B)
📄 kernel.h(2.4 KB)
📄 kernelcapi.h(959 B)
📄 keyboard.h(12.4 KB)
📄 keyctl.h(2.91 KB)
📄 kvm.h(20.2 KB)
📄 kvm_para.h(564 B)
📄 libc-compat.h(3.46 KB)
📄 limits.h(874 B)
📄 llc.h(2.77 KB)
📄 loop.h(2.14 KB)
📄 lp.h(3.71 KB)
📄 magic.h(2.24 KB)
📄 major.h(4.55 KB)
📄 map_to_7segment.h(7.02 KB)
📄 matroxfb.h(1.4 KB)
📄 mempolicy.h(2 KB)
📄 meye.h(2.48 KB)
📄 mii.h(7.76 KB)
📄 minix_fs.h(2.01 KB)
📄 mman.h(230 B)
📄 mmtimer.h(2.01 KB)
📄 mqueue.h(2.01 KB)
📄 mroute.h(3.72 KB)
📄 mroute6.h(3.9 KB)
📄 msdos_fs.h(5.7 KB)
📄 msg.h(2.48 KB)
📄 mtio.h(7.89 KB)
📄 n_r3964.h(2.29 KB)
📄 nbd.h(1.91 KB)
📄 ncp.h(4.94 KB)
📄 ncp_fs.h(3.28 KB)
📄 ncp_mount.h(2.06 KB)
📄 ncp_no.h(651 B)
📄 neighbour.h(3.96 KB)
📄 net.h(1.97 KB)
📄 net_dropmon.h(1.07 KB)
📄 net_tstamp.h(3.39 KB)
📄 netdevice.h(1.73 KB)
📁 netfilter
📄 netfilter.h(1.51 KB)
📁 netfilter_arp
📄 netfilter_arp.h(380 B)
📁 netfilter_bridge
📄 netfilter_bridge.h(735 B)
📄 netfilter_decnet.h(1.83 KB)
📁 netfilter_ipv4
📄 netfilter_ipv4.h(1.98 KB)
📁 netfilter_ipv6
📄 netfilter_ipv6.h(2 KB)
📄 netlink.h(4.85 KB)
📄 netrom.h(719 B)
📄 nfs.h(4.25 KB)
📄 nfs2.h(1.37 KB)
📄 nfs3.h(2.16 KB)
📄 nfs4.h(5.63 KB)
📄 nfs4_mount.h(1.83 KB)
📄 nfs_fs.h(1.52 KB)
📄 nfs_idmap.h(2.19 KB)
📄 nfs_mount.h(3.13 KB)
📄 nfsacl.h(577 B)
📁 nfsd
📄 nl80211.h(187.85 KB)
📄 nubus.h(8.17 KB)
📄 nvram.h(470 B)
📄 oom.h(456 B)
📄 param.h(78 B)
📄 parport.h(3.56 KB)
📄 patchkey.h(831 B)
📄 pci.h(1.45 KB)
📄 pci_regs.h(37.08 KB)
📄 perf_event.h(21.34 KB)
📄 personality.h(1.95 KB)
📄 pfkeyv2.h(9.91 KB)
📄 pg.h(2.23 KB)
📄 phantom.h(1.55 KB)
📄 phonet.h(4.25 KB)
📄 pkt_cls.h(9.08 KB)
📄 pkt_sched.h(10.63 KB)
📄 pktcdvd.h(2.56 KB)
📄 pmu.h(5.07 KB)
📄 poll.h(96 B)
📄 posix_types.h(1.24 KB)
📄 ppdev.h(3.07 KB)
📄 ppp-comp.h(6.36 KB)
📄 ppp_defs.h(6.31 KB)
📄 pps.h(3.85 KB)
📄 prctl.h(4.86 KB)
📄 ptp_clock.h(3.41 KB)
📄 ptrace.h(2.24 KB)
📄 qnx4_fs.h(2.21 KB)
📄 qnxtypes.h(561 B)
📄 quota.h(5.59 KB)
📄 radeonfb.h(297 B)
📁 raid
📄 random.h(1.06 KB)
📄 raw.h(302 B)
📄 reboot.h(1.25 KB)
📄 reiserfs_fs.h(907 B)
📄 reiserfs_xattr.h(465 B)
📄 resource.h(2.04 KB)
📄 rfkill.h(3.3 KB)
📄 romfs_fs.h(1.1 KB)
📄 rose.h(2.05 KB)
📄 route.h(2.22 KB)
📄 rtc.h(3.61 KB)
📄 rtnetlink.h(14.98 KB)
📄 scc.h(4.44 KB)
📄 sched.h(2.05 KB)
📄 screen_info.h(2.15 KB)
📄 sdla.h(2.77 KB)
📄 selinux_netlink.h(1.11 KB)
📄 sem.h(3.58 KB)
📄 serial.h(6.62 KB)
📄 serial_core.h(3.93 KB)
📄 serial_reg.h(12.93 KB)
📄 serio.h(1.65 KB)
📄 shm.h(2.14 KB)
📄 signal.h(129 B)
📄 signalfd.h(1.07 KB)
📄 smb.h(1.18 KB)
📄 smb_fs.h(535 B)
📄 smb_mount.h(468 B)
📄 smbno.h(14.18 KB)
📄 snmp.h(10.9 KB)
📄 socket.h(738 B)
📄 sockios.h(5.83 KB)
📄 som.h(5.35 KB)
📄 sonet.h(2.16 KB)
📄 sonypi.h(5.02 KB)
📄 sound.h(1.07 KB)
📄 soundcard.h(44.94 KB)
📁 spi
📄 stat.h(1005 B)
📄 stddef.h(633 B)
📄 string.h(175 B)
📁 sunrpc
📄 suspend_ioctls.h(1.34 KB)
📄 swab.h(6.14 KB)
📄 synclink.h(8.49 KB)
📄 sysctl.h(25.87 KB)
📄 taskstats.h(6.78 KB)
📁 tc_act
📁 tc_ematch
📄 tcp.h(5.08 KB)
📄 telephony.h(8.84 KB)
📄 termios.h(544 B)
📄 time.h(1.7 KB)
📄 times.h(215 B)
📄 timex.h(6.08 KB)
📄 tiocl.h(1.63 KB)
📄 tipc.h(5.77 KB)
📄 tipc_config.h(15.01 KB)
📄 toshiba.h(1.25 KB)
📄 tty.h(128 B)
📄 types.h(991 B)
📄 udf_fs_i.h(634 B)
📄 udp.h(1.14 KB)
📄 uinput.h(5 KB)
📄 uio.h(648 B)
📄 ultrasound.h(4.39 KB)
📄 un.h(203 B)
📄 unistd.h(157 B)
📁 usb
📄 usbdevice_fs.h(5.21 KB)
📄 utime.h(152 B)
📄 utsname.h(606 B)
📄 uuid.h(1.73 KB)
📄 version.h(281 B)
📄 veth.h(474 B)
📄 vhost.h(4.46 KB)
📄 videodev.h(10.27 KB)
📄 videodev2.h(64.52 KB)
📄 videotext.h(4.14 KB)
📄 virtio_9p.h(351 B)
📄 virtio_balloon.h(1.23 KB)
📄 virtio_blk.h(2.91 KB)
📄 virtio_config.h(1.25 KB)
📄 virtio_console.h(1.37 KB)
📄 virtio_ids.h(545 B)
📄 virtio_net.h(6.86 KB)
📄 virtio_pci.h(2.21 KB)
📄 virtio_ring.h(4.38 KB)
📄 virtio_rng.h(265 B)
📄 vt.h(3 KB)
📄 wait.h(580 B)
📄 wanrouter.h(17.42 KB)
📄 watchdog.h(2.34 KB)
📁 wimax
📄 wimax.h(8.17 KB)
📄 wireless.h(41.65 KB)
📄 x25.h(3.34 KB)
📄 xattr.h(646 B)
📄 xfrm.h(10.31 KB)

Editing: firewire-cdev.h

/*
 * Char device interface.
 *
 * Copyright (C) 2005-2006  Kristian Hoegsberg <krh@bitplanet.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef _LINUX_FIREWIRE_CDEV_H
#define _LINUX_FIREWIRE_CDEV_H

#include <linux/ioctl.h>
#include <linux/types.h>
#include <linux/firewire-constants.h>

#define FW_CDEV_EVENT_BUS_RESET			0x00
#define FW_CDEV_EVENT_RESPONSE			0x01
#define FW_CDEV_EVENT_REQUEST			0x02
#define FW_CDEV_EVENT_ISO_INTERRUPT		0x03
#define FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED	0x04
#define FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED	0x05

/**
 * struct fw_cdev_event_common - Common part of all fw_cdev_event_ types
 * @closure:	For arbitrary use by userspace
 * @type:	Discriminates the fw_cdev_event_ types
 *
 * This struct may be used to access generic members of all fw_cdev_event_
 * types regardless of the specific type.
 *
 * Data passed in the @closure field for a request will be returned in the
 * corresponding event.  It is big enough to hold a pointer on all platforms.
 * The ioctl used to set @closure depends on the @type of event.
 */
struct fw_cdev_event_common {
	__u64 closure;
	__u32 type;
};

/**
 * struct fw_cdev_event_bus_reset - Sent when a bus reset occurred
 * @closure:	See &fw_cdev_event_common; set by %FW_CDEV_IOC_GET_INFO ioctl
 * @type:	See &fw_cdev_event_common; always %FW_CDEV_EVENT_BUS_RESET
 * @node_id:       New node ID of this node
 * @local_node_id: Node ID of the local node, i.e. of the controller
 * @bm_node_id:    Node ID of the bus manager
 * @irm_node_id:   Node ID of the iso resource manager
 * @root_node_id:  Node ID of the root node
 * @generation:    New bus generation
 *
 * This event is sent when the bus the device belongs to goes through a bus
 * reset.  It provides information about the new bus configuration, such as
 * new node ID for this device, new root ID, and others.
 */
struct fw_cdev_event_bus_reset {
	__u64 closure;
	__u32 type;
	__u32 node_id;
	__u32 local_node_id;
	__u32 bm_node_id;
	__u32 irm_node_id;
	__u32 root_node_id;
	__u32 generation;
};

/**
 * struct fw_cdev_event_response - Sent when a response packet was received
 * @closure:	See &fw_cdev_event_common;
 *		set by %FW_CDEV_IOC_SEND_REQUEST ioctl
 * @type:	See &fw_cdev_event_common; always %FW_CDEV_EVENT_RESPONSE
 * @rcode:	Response code returned by the remote node
 * @length:	Data length, i.e. the response's payload size in bytes
 * @data:	Payload data, if any
 *
 * This event is sent when the stack receives a response to an outgoing request
 * sent by %FW_CDEV_IOC_SEND_REQUEST ioctl.  The payload data for responses
 * carrying data (read and lock responses) follows immediately and can be
 * accessed through the @data field.
 */
struct fw_cdev_event_response {
	__u64 closure;
	__u32 type;
	__u32 rcode;
	__u32 length;
	__u32 data[0];
};

/**
 * struct fw_cdev_event_request - Sent on incoming request to an address region
 * @closure:	See &fw_cdev_event_common; set by %FW_CDEV_IOC_ALLOCATE ioctl
 * @type:	See &fw_cdev_event_common; always %FW_CDEV_EVENT_REQUEST
 * @tcode:	Transaction code of the incoming request
 * @offset:	The offset into the 48-bit per-node address space
 * @handle:	Reference to the kernel-side pending request
 * @length:	Data length, i.e. the request's payload size in bytes
 * @data:	Incoming data, if any
 *
 * This event is sent when the stack receives an incoming request to an address
 * region registered using the %FW_CDEV_IOC_ALLOCATE ioctl.  The request is
 * guaranteed to be completely contained in the specified region.  Userspace is
 * responsible for sending the response by %FW_CDEV_IOC_SEND_RESPONSE ioctl,
 * using the same @handle.
 *
 * The payload data for requests carrying data (write and lock requests)
 * follows immediately and can be accessed through the @data field.
 */
struct fw_cdev_event_request {
	__u64 closure;
	__u32 type;
	__u32 tcode;
	__u64 offset;
	__u32 handle;
	__u32 length;
	__u32 data[0];
};

/**
 * struct fw_cdev_event_iso_interrupt - Sent when an iso packet was completed
 * @closure:	See &fw_cdev_event_common;
 *		set by %FW_CDEV_CREATE_ISO_CONTEXT ioctl
 * @type:	See &fw_cdev_event_common; always %FW_CDEV_EVENT_ISO_INTERRUPT
 * @cycle:	Cycle counter of the interrupt packet
 * @header_length: Total length of following headers, in bytes
 * @header:	Stripped headers, if any
 *
 * This event is sent when the controller has completed an &fw_cdev_iso_packet
 * with the %FW_CDEV_ISO_INTERRUPT bit set.  In the receive case, the headers
 * stripped of all packets up until and including the interrupt packet are
 * returned in the @header field.  The amount of header data per packet is as
 * specified at iso context creation by &fw_cdev_create_iso_context.header_size.
 *
 * In version 1 of this ABI, header data consisted of the 1394 isochronous
 * packet header, followed by quadlets from the packet payload if
 * &fw_cdev_create_iso_context.header_size > 4.
 *
 * In version 2 of this ABI, header data consist of the 1394 isochronous
 * packet header, followed by a timestamp quadlet if
 * &fw_cdev_create_iso_context.header_size > 4, followed by quadlets from the
 * packet payload if &fw_cdev_create_iso_context.header_size > 8.
 *
 * Behaviour of ver. 1 of this ABI is no longer available since ABI ver. 2.
 *
 * Format of 1394 iso packet header: 16 bits len, 2 bits tag, 6 bits channel,
 * 4 bits tcode, 4 bits sy, in big endian byte order.  Format of timestamp:
 * 16 bits invalid, 3 bits cycleSeconds, 13 bits cycleCount, in big endian byte
 * order.
 */
struct fw_cdev_event_iso_interrupt {
	__u64 closure;
	__u32 type;
	__u32 cycle;
	__u32 header_length;
	__u32 header[0];
};

/**
 * struct fw_cdev_event_iso_resource - Iso resources were allocated or freed
 * @closure:	See &fw_cdev_event_common;
 *		set by %FW_CDEV_IOC_(DE)ALLOCATE_ISO_RESOURCE(_ONCE) ioctl
 * @type:	%FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED or
 *		%FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED
 * @handle:	Reference by which an allocated resource can be deallocated
 * @channel:	Isochronous channel which was (de)allocated, if any
 * @bandwidth:	Bandwidth allocation units which were (de)allocated, if any
 *
 * An %FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED event is sent after an isochronous
 * resource was allocated at the IRM.  The client has to check @channel and
 * @bandwidth for whether the allocation actually succeeded.
 *
 * An %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event is sent after an isochronous
 * resource was deallocated at the IRM.  It is also sent when automatic
 * reallocation after a bus reset failed.
 *
 * @channel is <0 if no channel was (de)allocated or if reallocation failed.
 * @bandwidth is 0 if no bandwidth was (de)allocated or if reallocation failed.
 */
struct fw_cdev_event_iso_resource {
	__u64 closure;
	__u32 type;
	__u32 handle;
	__s32 channel;
	__s32 bandwidth;
};

/**
 * union fw_cdev_event - Convenience union of fw_cdev_event_ types
 * @common:        Valid for all types
 * @bus_reset:     Valid if @common.type == %FW_CDEV_EVENT_BUS_RESET
 * @response:      Valid if @common.type == %FW_CDEV_EVENT_RESPONSE
 * @request:       Valid if @common.type == %FW_CDEV_EVENT_REQUEST
 * @iso_interrupt: Valid if @common.type == %FW_CDEV_EVENT_ISO_INTERRUPT
 * @iso_resource:  Valid if @common.type ==
 *				%FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED or
 *				%FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED
 *
 * Convenience union for userspace use.  Events could be read(2) into an
 * appropriately aligned char buffer and then cast to this union for further
 * processing.  Note that for a request, response or iso_interrupt event,
 * the data[] or header[] may make the size of the full event larger than
 * sizeof(union fw_cdev_event).  Also note that if you attempt to read(2)
 * an event into a buffer that is not large enough for it, the data that does
 * not fit will be discarded so that the next read(2) will return a new event.
 */
union fw_cdev_event {
	struct fw_cdev_event_common		common;
	struct fw_cdev_event_bus_reset		bus_reset;
	struct fw_cdev_event_response		response;
	struct fw_cdev_event_request		request;
	struct fw_cdev_event_iso_interrupt	iso_interrupt;
	struct fw_cdev_event_iso_resource	iso_resource;
};

/* available since kernel version 2.6.22 */
#define FW_CDEV_IOC_GET_INFO           _IOWR('#', 0x00, struct fw_cdev_get_info)
#define FW_CDEV_IOC_SEND_REQUEST        _IOW('#', 0x01, struct fw_cdev_send_request)
#define FW_CDEV_IOC_ALLOCATE           _IOWR('#', 0x02, struct fw_cdev_allocate)
#define FW_CDEV_IOC_DEALLOCATE          _IOW('#', 0x03, struct fw_cdev_deallocate)
#define FW_CDEV_IOC_SEND_RESPONSE       _IOW('#', 0x04, struct fw_cdev_send_response)
#define FW_CDEV_IOC_INITIATE_BUS_RESET  _IOW('#', 0x05, struct fw_cdev_initiate_bus_reset)
#define FW_CDEV_IOC_ADD_DESCRIPTOR     _IOWR('#', 0x06, struct fw_cdev_add_descriptor)
#define FW_CDEV_IOC_REMOVE_DESCRIPTOR   _IOW('#', 0x07, struct fw_cdev_remove_descriptor)
#define FW_CDEV_IOC_CREATE_ISO_CONTEXT _IOWR('#', 0x08, struct fw_cdev_create_iso_context)
#define FW_CDEV_IOC_QUEUE_ISO          _IOWR('#', 0x09, struct fw_cdev_queue_iso)
#define FW_CDEV_IOC_START_ISO           _IOW('#', 0x0a, struct fw_cdev_start_iso)
#define FW_CDEV_IOC_STOP_ISO            _IOW('#', 0x0b, struct fw_cdev_stop_iso)

/* available since kernel version 2.6.24 */
#define FW_CDEV_IOC_GET_CYCLE_TIMER     _IOR('#', 0x0c, struct fw_cdev_get_cycle_timer)

/* available since kernel version 2.6.30 */
#define FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE       _IOWR('#', 0x0d, struct fw_cdev_allocate_iso_resource)
#define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE      _IOW('#', 0x0e, struct fw_cdev_deallocate)
#define FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE   _IOW('#', 0x0f, struct fw_cdev_allocate_iso_resource)
#define FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE_ONCE _IOW('#', 0x10, struct fw_cdev_allocate_iso_resource)
#define FW_CDEV_IOC_GET_SPEED                     _IO('#', 0x11) /* returns speed code */
#define FW_CDEV_IOC_SEND_BROADCAST_REQUEST       _IOW('#', 0x12, struct fw_cdev_send_request)
#define FW_CDEV_IOC_SEND_STREAM_PACKET           _IOW('#', 0x13, struct fw_cdev_send_stream_packet)

/*
 * FW_CDEV_VERSION History
 *  1  (2.6.22)  - initial version
 *  2  (2.6.30)  - changed &fw_cdev_event_iso_interrupt.header if
 *                 &fw_cdev_create_iso_context.header_size is 8 or more
 */
#define FW_CDEV_VERSION 2

/**
 * struct fw_cdev_get_info - General purpose information ioctl
 * @version:	The version field is just a running serial number.
 *		We never break backwards compatibility, but may add more
 *		structs and ioctls in later revisions.
 * @rom_length:	If @rom is non-zero, at most rom_length bytes of configuration
 *		ROM will be copied into that user space address.  In either
 *		case, @rom_length is updated with the actual length of the
 *		configuration ROM.
 * @rom:	If non-zero, address of a buffer to be filled by a copy of the
 *		device's configuration ROM
 * @bus_reset:	If non-zero, address of a buffer to be filled by a
 *		&struct fw_cdev_event_bus_reset with the current state
 *		of the bus.  This does not cause a bus reset to happen.
 * @bus_reset_closure: Value of &closure in this and subsequent bus reset events
 * @card:	The index of the card this device belongs to
 */
struct fw_cdev_get_info {
	__u32 version;
	__u32 rom_length;
	__u64 rom;
	__u64 bus_reset;
	__u64 bus_reset_closure;
	__u32 card;
};

/**
 * struct fw_cdev_send_request - Send an asynchronous request packet
 * @tcode:	Transaction code of the request
 * @length:	Length of outgoing payload, in bytes
 * @offset:	48-bit offset at destination node
 * @closure:	Passed back to userspace in the response event
 * @data:	Userspace pointer to payload
 * @generation:	The bus generation where packet is valid
 *
 * Send a request to the device.  This ioctl implements all outgoing requests.
 * Both quadlet and block request specify the payload as a pointer to the data
 * in the @data field.  Once the transaction completes, the kernel writes an
 * &fw_cdev_event_response event back.  The @closure field is passed back to
 * user space in the response event.
 */
struct fw_cdev_send_request {
	__u32 tcode;
	__u32 length;
	__u64 offset;
	__u64 closure;
	__u64 data;
	__u32 generation;
};

/**
 * struct fw_cdev_send_response - Send an asynchronous response packet
 * @rcode:	Response code as determined by the userspace handler
 * @length:	Length of outgoing payload, in bytes
 * @data:	Userspace pointer to payload
 * @handle:	The handle from the &fw_cdev_event_request
 *
 * Send a response to an incoming request.  By setting up an address range using
 * the %FW_CDEV_IOC_ALLOCATE ioctl, userspace can listen for incoming requests.  An
 * incoming request will generate an %FW_CDEV_EVENT_REQUEST, and userspace must
 * send a reply using this ioctl.  The event has a handle to the kernel-side
 * pending transaction, which should be used with this ioctl.
 */
struct fw_cdev_send_response {
	__u32 rcode;
	__u32 length;
	__u64 data;
	__u32 handle;
};

/**
 * struct fw_cdev_allocate - Allocate a CSR address range
 * @offset:	Start offset of the address range
 * @closure:	To be passed back to userspace in request events
 * @length:	Length of the address range, in bytes
 * @handle:	Handle to the allocation, written by the kernel
 *
 * Allocate an address range in the 48-bit address space on the local node
 * (the controller).  This allows userspace to listen for requests with an
 * offset within that address range.  When the kernel receives a request
 * within the range, an &fw_cdev_event_request event will be written back.
 * The @closure field is passed back to userspace in the response event.
 * The @handle field is an out parameter, returning a handle to the allocated
 * range to be used for later deallocation of the range.
 */
struct fw_cdev_allocate {
	__u64 offset;
	__u64 closure;
	__u32 length;
	__u32 handle;
};

/**
 * struct fw_cdev_deallocate - Free a CSR address range or isochronous resource
 * @handle:	Handle to the address range or iso resource, as returned by the
 *		kernel when the range or resource was allocated
 */
struct fw_cdev_deallocate {
	__u32 handle;
};

#define FW_CDEV_LONG_RESET	0
#define FW_CDEV_SHORT_RESET	1

/**
 * struct fw_cdev_initiate_bus_reset - Initiate a bus reset
 * @type:	%FW_CDEV_SHORT_RESET or %FW_CDEV_LONG_RESET
 *
 * Initiate a bus reset for the bus this device is on.  The bus reset can be
 * either the original (long) bus reset or the arbitrated (short) bus reset
 * introduced in 1394a-2000.
 */
struct fw_cdev_initiate_bus_reset {
	__u32 type;	/* FW_CDEV_SHORT_RESET or FW_CDEV_LONG_RESET */
};

/**
 * struct fw_cdev_add_descriptor - Add contents to the local node's config ROM
 * @immediate:	If non-zero, immediate key to insert before pointer
 * @key:	Upper 8 bits of root directory pointer
 * @data:	Userspace pointer to contents of descriptor block
 * @length:	Length of descriptor block data, in bytes
 * @handle:	Handle to the descriptor, written by the kernel
 *
 * Add a descriptor block and optionally a preceding immediate key to the local
 * node's configuration ROM.
 *
 * The @key field specifies the upper 8 bits of the descriptor root directory
 * pointer and the @data and @length fields specify the contents. The @key
 * should be of the form 0xXX000000. The offset part of the root directory entry
 * will be filled in by the kernel.
 *
 * If not 0, the @immediate field specifies an immediate key which will be
 * inserted before the root directory pointer.
 *
 * If successful, the kernel adds the descriptor and writes back a handle to the
 * kernel-side object to be used for later removal of the descriptor block and
 * immediate key.
 *
 * This ioctl affects the configuration ROMs of all local nodes.
 * The ioctl only succeeds on device files which represent a local node.
 */
struct fw_cdev_add_descriptor {
	__u32 immediate;
	__u32 key;
	__u64 data;
	__u32 length;
	__u32 handle;
};

/**
 * struct fw_cdev_remove_descriptor - Remove contents from the configuration ROM
 * @handle:	Handle to the descriptor, as returned by the kernel when the
 *		descriptor was added
 *
 * Remove a descriptor block and accompanying immediate key from the local
 * nodes' configuration ROMs.
 */
struct fw_cdev_remove_descriptor {
	__u32 handle;
};

#define FW_CDEV_ISO_CONTEXT_TRANSMIT	0
#define FW_CDEV_ISO_CONTEXT_RECEIVE	1

/**
 * struct fw_cdev_create_iso_context - Create a context for isochronous IO
 * @type:	%FW_CDEV_ISO_CONTEXT_TRANSMIT or %FW_CDEV_ISO_CONTEXT_RECEIVE
 * @header_size: Header size to strip for receive contexts
 * @channel:	Channel to bind to
 * @speed:	Speed to transmit at
 * @closure:	To be returned in &fw_cdev_event_iso_interrupt
 * @handle:	Handle to context, written back by kernel
 *
 * Prior to sending or receiving isochronous I/O, a context must be created.
 * The context records information about the transmit or receive configuration
 * and typically maps to an underlying hardware resource.  A context is set up
 * for either sending or receiving.  It is bound to a specific isochronous
 * channel.
 *
 * If a context was successfully created, the kernel writes back a handle to the
 * context, which must be passed in for subsequent operations on that context.
 *
 * Note that the effect of a @header_size > 4 depends on
 * &fw_cdev_get_info.version, as documented at &fw_cdev_event_iso_interrupt.
 */
struct fw_cdev_create_iso_context {
	__u32 type;
	__u32 header_size;
	__u32 channel;
	__u32 speed;
	__u64 closure;
	__u32 handle;
};

#define FW_CDEV_ISO_PAYLOAD_LENGTH(v)	(v)
#define FW_CDEV_ISO_INTERRUPT		(1 << 16)
#define FW_CDEV_ISO_SKIP		(1 << 17)
#define FW_CDEV_ISO_SYNC		(1 << 17)
#define FW_CDEV_ISO_TAG(v)		((v) << 18)
#define FW_CDEV_ISO_SY(v)		((v) << 20)
#define FW_CDEV_ISO_HEADER_LENGTH(v)	((v) << 24)

/**
 * struct fw_cdev_iso_packet - Isochronous packet
 * @control:	Contains the header length (8 uppermost bits), the sy field
 *		(4 bits), the tag field (2 bits), a sync flag (1 bit),
 *		a skip flag (1 bit), an interrupt flag (1 bit), and the
 *		payload length (16 lowermost bits)
 * @header:	Header and payload
 *
 * &struct fw_cdev_iso_packet is used to describe isochronous packet queues.
 *
 * Use the FW_CDEV_ISO_ macros to fill in @control.  The sy and tag fields are
 * specified by IEEE 1394a and IEC 61883.
 *
 * FIXME - finish this documentation
 */
struct fw_cdev_iso_packet {
	__u32 control;
	__u32 header[0];
};

/**
 * struct fw_cdev_queue_iso - Queue isochronous packets for I/O
 * @packets:	Userspace pointer to packet data
 * @data:	Pointer into mmap()'ed payload buffer
 * @size:	Size of packet data in bytes
 * @handle:	Isochronous context handle
 *
 * Queue a number of isochronous packets for reception or transmission.
 * This ioctl takes a pointer to an array of &fw_cdev_iso_packet structs,
 * which describe how to transmit from or receive into a contiguous region
 * of a mmap()'ed payload buffer.  As part of the packet descriptors,
 * a series of headers can be supplied, which will be prepended to the
 * payload during DMA.
 *
 * The kernel may or may not queue all packets, but will write back updated
 * values of the @packets, @data and @size fields, so the ioctl can be
 * resubmitted easily.
 */
struct fw_cdev_queue_iso {
	__u64 packets;
	__u64 data;
	__u32 size;
	__u32 handle;
};

#define FW_CDEV_ISO_CONTEXT_MATCH_TAG0		 1
#define FW_CDEV_ISO_CONTEXT_MATCH_TAG1		 2
#define FW_CDEV_ISO_CONTEXT_MATCH_TAG2		 4
#define FW_CDEV_ISO_CONTEXT_MATCH_TAG3		 8
#define FW_CDEV_ISO_CONTEXT_MATCH_ALL_TAGS	15

/**
 * struct fw_cdev_start_iso - Start an isochronous transmission or reception
 * @cycle:	Cycle in which to start I/O.  If @cycle is greater than or
 *		equal to 0, the I/O will start on that cycle.
 * @sync:	Determines the value to wait for for receive packets that have
 *		the %FW_CDEV_ISO_SYNC bit set
 * @tags:	Tag filter bit mask.  Only valid for isochronous reception.
 *		Determines the tag values for which packets will be accepted.
 *		Use FW_CDEV_ISO_CONTEXT_MATCH_ macros to set @tags.
 * @handle:	Isochronous context handle within which to transmit or receive
 */
struct fw_cdev_start_iso {
	__s32 cycle;
	__u32 sync;
	__u32 tags;
	__u32 handle;
};

/**
 * struct fw_cdev_stop_iso - Stop an isochronous transmission or reception
 * @handle:	Handle of isochronous context to stop
 */
struct fw_cdev_stop_iso {
	__u32 handle;
};

/**
 * struct fw_cdev_get_cycle_timer - read cycle timer register
 * @local_time:   system time, in microseconds since the Epoch
 * @cycle_timer:  isochronous cycle timer, as per OHCI 1.1 clause 5.13
 *
 * The %FW_CDEV_IOC_GET_CYCLE_TIMER ioctl reads the isochronous cycle timer
 * and also the system clock.  This allows to express the receive time of an
 * isochronous packet as a system time with microsecond accuracy.
 *
 * @cycle_timer consists of 7 bits cycleSeconds, 13 bits cycleCount, and
 * 12 bits cycleOffset, in host byte order.
 */
struct fw_cdev_get_cycle_timer {
	__u64 local_time;
	__u32 cycle_timer;
};

/**
 * struct fw_cdev_allocate_iso_resource - (De)allocate a channel or bandwidth
 * @closure:	Passed back to userspace in correponding iso resource events
 * @channels:	Isochronous channels of which one is to be (de)allocated
 * @bandwidth:	Isochronous bandwidth units to be (de)allocated
 * @handle:	Handle to the allocation, written by the kernel (only valid in
 *		case of %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE ioctls)
 *
 * The %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE ioctl initiates allocation of an
 * isochronous channel and/or of isochronous bandwidth at the isochronous
 * resource manager (IRM).  Only one of the channels specified in @channels is
 * allocated.  An %FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED is sent after
 * communication with the IRM, indicating success or failure in the event data.
 * The kernel will automatically reallocate the resources after bus resets.
 * Should a reallocation fail, an %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event
 * will be sent.  The kernel will also automatically deallocate the resources
 * when the file descriptor is closed.
 *
 * The %FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE ioctl can be used to initiate
 * deallocation of resources which were allocated as described above.
 * An %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event concludes this operation.
 *
 * The %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE ioctl is a variant of allocation
 * without automatic re- or deallocation.
 * An %FW_CDEV_EVENT_ISO_RESOURCE_ALLOCATED event concludes this operation,
 * indicating success or failure in its data.
 *
 * The %FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE_ONCE ioctl works like
 * %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE except that resources are freed
 * instead of allocated.
 * An %FW_CDEV_EVENT_ISO_RESOURCE_DEALLOCATED event concludes this operation.
 *
 * To summarize, %FW_CDEV_IOC_DEALLOCATE_ISO_RESOURCE allocates iso resources
 * for the lifetime of the fd or handle.
 * In contrast, %FW_CDEV_IOC_ALLOCATE_ISO_RESOURCE_ONCE allocates iso resources
 * for the duration of a bus generation.
 *
 * @channels is a host-endian bitfield with the least significant bit
 * representing channel 0 and the most significant bit representing channel 63:
 * 1ULL << c for each channel c that is a candidate for (de)allocation.
 *
 * @bandwidth is expressed in bandwidth allocation units, i.e. the time to send
 * one quadlet of data (payload or header data) at speed S1600.
 */
struct fw_cdev_allocate_iso_resource {
	__u64 closure;
	__u64 channels;
	__u32 bandwidth;
	__u32 handle;
};

/**
 * struct fw_cdev_send_stream_packet - send an asynchronous stream packet
 * @length:	Length of outgoing payload, in bytes
 * @tag:	Data format tag
 * @channel:	Isochronous channel to transmit to
 * @sy:		Synchronization code
 * @closure:	Passed back to userspace in the response event
 * @data:	Userspace pointer to payload
 * @generation:	The bus generation where packet is valid
 * @speed:	Speed to transmit at
 *
 * The %FW_CDEV_IOC_SEND_STREAM_PACKET ioctl sends an asynchronous stream packet
 * to every device which is listening to the specified channel.  The kernel
 * writes an &fw_cdev_event_response event which indicates success or failure of
 * the transmission.
 */
struct fw_cdev_send_stream_packet {
	__u32 length;
	__u32 tag;
	__u32 channel;
	__u32 sy;
	__u64 closure;
	__u64 data;
	__u32 generation;
	__u32 speed;
};

#endif /* _LINUX_FIREWIRE_CDEV_H */

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