ia64/linux-2.6.18-xen.hg

view drivers/ieee1394/raw1394.h @ 893:f994bfe9b93b

linux/blktap2: reduce TLB flush scope

c/s 885 added very coarse TLB flushing. Since these flushes always
follow single page updates, single page flushes (when available) are
sufficient.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Jun 04 10:32:57 2009 +0100 (2009-06-04)
parents 831230e53067
children
line source
1 #ifndef IEEE1394_RAW1394_H
2 #define IEEE1394_RAW1394_H
4 /* header for the raw1394 API that is exported to user-space */
6 #define RAW1394_KERNELAPI_VERSION 4
8 /* state: opened */
9 #define RAW1394_REQ_INITIALIZE 1
11 /* state: initialized */
12 #define RAW1394_REQ_LIST_CARDS 2
13 #define RAW1394_REQ_SET_CARD 3
15 /* state: connected */
16 #define RAW1394_REQ_ASYNC_READ 100
17 #define RAW1394_REQ_ASYNC_WRITE 101
18 #define RAW1394_REQ_LOCK 102
19 #define RAW1394_REQ_LOCK64 103
20 #define RAW1394_REQ_ISO_SEND 104
21 #define RAW1394_REQ_ASYNC_SEND 105
22 #define RAW1394_REQ_ASYNC_STREAM 106
24 #define RAW1394_REQ_ISO_LISTEN 200
25 #define RAW1394_REQ_FCP_LISTEN 201
26 #define RAW1394_REQ_RESET_BUS 202
27 #define RAW1394_REQ_GET_ROM 203
28 #define RAW1394_REQ_UPDATE_ROM 204
29 #define RAW1394_REQ_ECHO 205
30 #define RAW1394_REQ_MODIFY_ROM 206
32 #define RAW1394_REQ_ARM_REGISTER 300
33 #define RAW1394_REQ_ARM_UNREGISTER 301
34 #define RAW1394_REQ_ARM_SET_BUF 302
35 #define RAW1394_REQ_ARM_GET_BUF 303
37 #define RAW1394_REQ_RESET_NOTIFY 400
39 #define RAW1394_REQ_PHYPACKET 500
41 /* kernel to user */
42 #define RAW1394_REQ_BUS_RESET 10000
43 #define RAW1394_REQ_ISO_RECEIVE 10001
44 #define RAW1394_REQ_FCP_REQUEST 10002
45 #define RAW1394_REQ_ARM 10003
46 #define RAW1394_REQ_RAWISO_ACTIVITY 10004
48 /* error codes */
49 #define RAW1394_ERROR_NONE 0
50 #define RAW1394_ERROR_COMPAT (-1001)
51 #define RAW1394_ERROR_STATE_ORDER (-1002)
52 #define RAW1394_ERROR_GENERATION (-1003)
53 #define RAW1394_ERROR_INVALID_ARG (-1004)
54 #define RAW1394_ERROR_MEMFAULT (-1005)
55 #define RAW1394_ERROR_ALREADY (-1006)
57 #define RAW1394_ERROR_EXCESSIVE (-1020)
58 #define RAW1394_ERROR_UNTIDY_LEN (-1021)
60 #define RAW1394_ERROR_SEND_ERROR (-1100)
61 #define RAW1394_ERROR_ABORTED (-1101)
62 #define RAW1394_ERROR_TIMEOUT (-1102)
64 /* arm_codes */
65 #define ARM_READ 1
66 #define ARM_WRITE 2
67 #define ARM_LOCK 4
69 #define RAW1394_LONG_RESET 0
70 #define RAW1394_SHORT_RESET 1
72 /* busresetnotify ... */
73 #define RAW1394_NOTIFY_OFF 0
74 #define RAW1394_NOTIFY_ON 1
76 #include <asm/types.h>
78 struct raw1394_request {
79 __u32 type;
80 __s32 error;
81 __u32 misc;
83 __u32 generation;
84 __u32 length;
86 __u64 address;
88 __u64 tag;
90 __u64 sendb;
91 __u64 recvb;
92 };
94 struct raw1394_khost_list {
95 __u32 nodes;
96 __u8 name[32];
97 };
99 typedef struct arm_request {
100 __u16 destination_nodeid;
101 __u16 source_nodeid;
102 __u64 destination_offset;
103 __u8 tlabel;
104 __u8 tcode;
105 __u8 extended_transaction_code;
106 __u32 generation;
107 __u16 buffer_length;
108 __u8 __user *buffer;
109 } *arm_request_t;
111 typedef struct arm_response {
112 __s32 response_code;
113 __u16 buffer_length;
114 __u8 __user *buffer;
115 } *arm_response_t;
117 typedef struct arm_request_response {
118 struct arm_request __user *request;
119 struct arm_response __user *response;
120 } *arm_request_response_t;
122 /* rawiso API */
123 #include "ieee1394-ioctl.h"
125 /* per-packet metadata embedded in the ringbuffer */
126 /* must be identical to hpsb_iso_packet_info in iso.h! */
127 struct raw1394_iso_packet_info {
128 __u32 offset;
129 __u16 len;
130 __u16 cycle; /* recv only */
131 __u8 channel; /* recv only */
132 __u8 tag;
133 __u8 sy;
134 };
136 /* argument for RAW1394_ISO_RECV/XMIT_PACKETS ioctls */
137 struct raw1394_iso_packets {
138 __u32 n_packets;
139 struct raw1394_iso_packet_info __user *infos;
140 };
142 struct raw1394_iso_config {
143 /* size of packet data buffer, in bytes (will be rounded up to PAGE_SIZE) */
144 __u32 data_buf_size;
146 /* # of packets to buffer */
147 __u32 buf_packets;
149 /* iso channel (set to -1 for multi-channel recv) */
150 __s32 channel;
152 /* xmit only - iso transmission speed */
153 __u8 speed;
155 /* The mode of the dma when receiving iso data. Must be supported by chip */
156 __u8 dma_mode;
158 /* max. latency of buffer, in packets (-1 if you don't care) */
159 __s32 irq_interval;
160 };
162 /* argument to RAW1394_ISO_XMIT/RECV_INIT and RAW1394_ISO_GET_STATUS */
163 struct raw1394_iso_status {
164 /* current settings */
165 struct raw1394_iso_config config;
167 /* number of packets waiting to be filled with data (ISO transmission)
168 or containing data received (ISO reception) */
169 __u32 n_packets;
171 /* approximate number of packets dropped due to overflow or
172 underflow of the packet buffer (a value of zero guarantees
173 that no packets have been dropped) */
174 __u32 overflows;
176 /* cycle number at which next packet will be transmitted;
177 -1 if not known */
178 __s16 xmit_cycle;
179 };
181 #endif /* IEEE1394_RAW1394_H */