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_RESPONSE          0x00
  62 #define FW_CDEV_EVENT_REQUEST           0x01
  63 #define FW_CDEV_EVENT_ISO_INTERRUPT     0x02
  64
  65 /* The 'closure' fields are for user space to use.  Data passed in the
  66  * 'closure' field for a request will be returned in the corresponding
  67  * event.  It's a 64-bit type so that it's a fixed size type big
  68  * enough to hold a pointer on all platforms. */
  69
  70 struct fw_cdev_event_response {
  71         __u32 type;
  72         __u32 rcode;
  73         __u64 closure;
  74         __u32 length;
  75         __u32 data[0];
  76 };
  77
  78 struct fw_cdev_event_request {
  79         __u32 type;
  80         __u32 tcode;
  81         __u64 offset;
  82         __u64 closure;
  83         __u32 serial;
  84         __u32 length;
  85         __u32 data[0];
  86 };
  87
  88 struct fw_cdev_event_iso_interrupt {
  89         __u32 type;
  90         __u32 cycle;
  91         __u64 closure;
  92 };
  93
  94 #define FW_CDEV_IOC_GET_CONFIG_ROM      _IOR('#', 0x00, struct fw_cdev_get_config_rom)
  95 #define FW_CDEV_IOC_SEND_REQUEST        _IO('#', 0x01)
  96 #define FW_CDEV_IOC_ALLOCATE            _IO('#', 0x02)
  97 #define FW_CDEV_IOC_SEND_RESPONSE       _IO('#', 0x03)
  98 #define FW_CDEV_IOC_CREATE_ISO_CONTEXT  _IO('#', 0x04)
  99 #define FW_CDEV_IOC_QUEUE_ISO           _IO('#', 0x05)
 100 #define FW_CDEV_IOC_SEND_ISO            _IO('#', 0x06)
 101
 102 struct fw_cdev_get_config_rom {
 103         __u32 length;
 104         __u32 data[256];
 105 };
 106
 107 struct fw_cdev_send_request {
 108         __u32 tcode;
 109         __u32 length;
 110         __u64 offset;
 111         __u64 closure;
 112         __u64 data;
 113 };
 114
 115 struct fw_cdev_send_response {
 116         __u32 rcode;
 117         __u32 length;
 118         __u64 data;
 119         __u32 serial;
 120 };
 121
 122 struct fw_cdev_allocate {
 123         __u64 offset;
 124         __u64 closure;
 125         __u32 length;
 126 };
 127
 128 struct fw_cdev_create_iso_context {
 129         __u32 handle;
 130 };
 131
 132 struct fw_cdev_iso_packet {
 133         __u16 payload_length;   /* Length of indirect payload. */
 134         __u32 interrupt : 1;    /* Generate interrupt on this packet */
 135         __u32 skip : 1;         /* Set to not send packet at all. */
 136         __u32 tag : 2;
 137         __u32 sy : 4;
 138         __u32 header_length : 8;        /* Length of immediate header. */
 139         __u32 header[0];
 140 };
 141
 142 struct fw_cdev_queue_iso {
 143         __u32 size;
 144         __u64 packets;
 145         __u64 data;
 146 };
 147
 148 struct fw_cdev_send_iso {
 149         __u32 channel;
 150         __u32 speed;
 151         __s32 cycle;
 152 };
 153
 154 #endif /* __fw_cdev_h */