drivers/firewire/fw-device-cdev.h

   1 /*                                              -*- c-basic-offset: 8 -*-
   2  *
   3  * fw-device-cdev.h -- Char device interface.
   4  *
   5  * Copyright (C) 2005-2006  Kristian Hoegsberg <krh@bitplanet.net>
   6  *
   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.
  11  *
  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.
  16  *
  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 Foundation,
  19  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21
  22 #ifndef __fw_cdev_h
  23 #define __fw_cdev_h
  24
  25 #include <asm/ioctl.h>
  26 #include <asm/types.h>
  27
  28 #define TCODE_WRITE_QUADLET_REQUEST     0
  29 #define TCODE_WRITE_BLOCK_REQUEST       1
  30 #define TCODE_WRITE_RESPONSE            2
  31 #define TCODE_READ_QUADLET_REQUEST      4
  32 #define TCODE_READ_BLOCK_REQUEST        5
  33 #define TCODE_READ_QUADLET_RESPONSE     6
  34 #define TCODE_READ_BLOCK_RESPONSE       7
  35 #define TCODE_CYCLE_START               8
  36 #define TCODE_LOCK_REQUEST              9
  37 #define TCODE_STREAM_DATA               10
  38 #define TCODE_LOCK_RESPONSE             11
  39
  40 #define TCODE_LOCK_MASK_SWAP            0x11
  41 #define TCODE_LOCK_COMPARE_SWAP         0x12
  42 #define TCODE_LOCK_FETCH_ADD            0x13
  43 #define TCODE_LOCK_LITTLE_ADD           0x14
  44 #define TCODE_LOCK_BOUNDED_ADD          0x15
  45 #define TCODE_LOCK_WRAP_ADD             0x16
  46 #define TCODE_LOCK_VENDOR_DEPENDENT     0x17
  47
  48 #define RCODE_COMPLETE                  0x0
  49 #define RCODE_CONFLICT_ERROR            0x4
  50 #define RCODE_DATA_ERROR                0x5
  51 #define RCODE_TYPE_ERROR                0x6
  52 #define RCODE_ADDRESS_ERROR             0x7
  53
  54 #define SCODE_100                       0x0
  55 #define SCODE_200                       0x1
  56 #define SCODE_400                       0x2
  57 #define SCODE_800                       0x3
  58 #define SCODE_1600                      0x4
  59 #define SCODE_3200                      0x5
  60
  61 #define FW_CDEV_EVENT_BUS_RESET         0x00
  62 #define FW_CDEV_EVENT_RESPONSE          0x01
  63 #define FW_CDEV_EVENT_REQUEST           0x02
  64 #define FW_CDEV_EVENT_ISO_INTERRUPT     0x03
  65
  66 /* The 'closure' fields are for user space to use.  Data passed in the
  67  * 'closure' field for a request will be returned in the corresponding
  68  * event.  It's a 64-bit type so that it's a fixed size type big
  69  * enough to hold a pointer on all platforms. */
  70
  71 struct fw_cdev_event_bus_reset {
  72         __u32 type;
  73         __u32 node_id;
  74         __u32 local_node_id;
  75         __u32 bm_node_id;
  76         __u32 irm_node_id;
  77         __u32 root_node_id;
  78         __u32 generation;
  79 };
  80
  81 struct fw_cdev_event_response {
  82         __u32 type;
  83         __u32 rcode;
  84         __u64 closure;
  85         __u32 length;
  86         __u32 data[0];
  87 };
  88
  89 struct fw_cdev_event_request {
  90         __u32 type;
  91         __u32 tcode;
  92         __u64 offset;
  93         __u64 closure;
  94         __u32 serial;
  95         __u32 length;
  96         __u32 data[0];
  97 };
  98
  99 struct fw_cdev_event_iso_interrupt {
 100         __u32 type;
 101         __u32 cycle;
 102         __u64 closure;
 103         __u32 header_length;    /* Length in bytes of following headers. */
 104         __u32 header[0];
 105 };
 106
 107 #define FW_CDEV_IOC_GET_CONFIG_ROM      _IOR('#', 0x00, struct fw_cdev_get_config_rom)
 108 #define FW_CDEV_IOC_SEND_REQUEST        _IO('#', 0x01)
 109 #define FW_CDEV_IOC_ALLOCATE            _IO('#', 0x02)
 110 #define FW_CDEV_IOC_SEND_RESPONSE       _IO('#', 0x03)
 111 #define FW_CDEV_IOC_CREATE_ISO_CONTEXT  _IO('#', 0x04)
 112 #define FW_CDEV_IOC_QUEUE_ISO           _IO('#', 0x05)
 113 #define FW_CDEV_IOC_START_ISO           _IO('#', 0x06)
 114 #define FW_CDEV_IOC_STOP_ISO            _IO('#', 0x07)
 115
 116 struct fw_cdev_get_config_rom {
 117         __u32 length;
 118         __u32 data[256];
 119 };
 120
 121 struct fw_cdev_send_request {
 122         __u32 tcode;
 123         __u32 length;
 124         __u64 offset;
 125         __u64 closure;
 126         __u64 data;
 127 };
 128
 129 struct fw_cdev_send_response {
 130         __u32 rcode;
 131         __u32 length;
 132         __u64 data;
 133         __u32 serial;
 134 };
 135
 136 struct fw_cdev_allocate {
 137         __u64 offset;
 138         __u64 closure;
 139         __u32 length;
 140 };
 141
 142 #define FW_CDEV_ISO_CONTEXT_TRANSMIT    0
 143 #define FW_CDEV_ISO_CONTEXT_RECEIVE     1
 144
 145 #define FW_CDEV_ISO_CONTEXT_MATCH_TAG0           1
 146 #define FW_CDEV_ISO_CONTEXT_MATCH_TAG1           2
 147 #define FW_CDEV_ISO_CONTEXT_MATCH_TAG2           4
 148 #define FW_CDEV_ISO_CONTEXT_MATCH_TAG3           8
 149 #define FW_CDEV_ISO_CONTEXT_MATCH_ALL_TAGS      15
 150
 151 struct fw_cdev_create_iso_context {
 152         __u32 type;
 153         __u32 header_size;
 154         __u32 channel;
 155         __u32 speed;
 156         __u32 sync;
 157         __u32 tags;
 158 };
 159
 160 struct fw_cdev_iso_packet {
 161         __u16 payload_length;   /* Length of indirect payload. */
 162         __u32 interrupt : 1;    /* Generate interrupt on this packet */
 163         __u32 skip : 1;         /* Set to not send packet at all. */
 164         __u32 tag : 2;
 165         __u32 sy : 4;
 166         __u32 header_length : 8;        /* Length of immediate header. */
 167         __u32 header[0];
 168 };
 169
 170 struct fw_cdev_queue_iso {
 171         __u32 size;
 172         __u64 packets;
 173         __u64 data;
 174 };
 175
 176 struct fw_cdev_start_iso {
 177         __s32 cycle;
 178 };
 179
 180 #endif /* __fw_cdev_h */