drivers/ieee1394/raw1394.h

   1 #ifndef IEEE1394_RAW1394_H
   2 #define IEEE1394_RAW1394_H
   3
   4 /* header for the raw1394 API that is exported to user-space */
   5
   6 #define RAW1394_KERNELAPI_VERSION 4
   7
   8 /* state: opened */
   9 #define RAW1394_REQ_INITIALIZE    1
  10
  11 /* state: initialized */
  12 #define RAW1394_REQ_LIST_CARDS    2
  13 #define RAW1394_REQ_SET_CARD      3
  14
  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
  23
  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
  31
  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
  36
  37 #define RAW1394_REQ_RESET_NOTIFY    400
  38
  39 #define RAW1394_REQ_PHYPACKET       500
  40
  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
  47
  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)
  56
  57 #define RAW1394_ERROR_EXCESSIVE   (-1020)
  58 #define RAW1394_ERROR_UNTIDY_LEN  (-1021)
  59
  60 #define RAW1394_ERROR_SEND_ERROR  (-1100)
  61 #define RAW1394_ERROR_ABORTED     (-1101)
  62 #define RAW1394_ERROR_TIMEOUT     (-1102)
  63
  64 /* arm_codes */
  65 #define ARM_READ   1
  66 #define ARM_WRITE  2
  67 #define ARM_LOCK   4
  68
  69 #define RAW1394_LONG_RESET  0
  70 #define RAW1394_SHORT_RESET 1
  71
  72 /* busresetnotify ... */
  73 #define RAW1394_NOTIFY_OFF 0
  74 #define RAW1394_NOTIFY_ON  1
  75
  76 #include <asm/types.h>
  77
  78 struct raw1394_request {
  79         __u32 type;
  80         __s32 error;
  81         __u32 misc;
  82
  83         __u32 generation;
  84         __u32 length;
  85
  86         __u64 address;
  87
  88         __u64 tag;
  89
  90         __u64 sendb;
  91         __u64 recvb;
  92 };
  93
  94 struct raw1394_khost_list {
  95         __u32 nodes;
  96         __u8 name[32];
  97 };
  98
  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;
 110
 111 typedef struct arm_response {
 112         __s32           response_code;
 113         __u16           buffer_length;
 114         __u8            __user *buffer;
 115 } *arm_response_t;
 116
 117 typedef struct arm_request_response {
 118         struct arm_request  __user *request;
 119         struct arm_response __user *response;
 120 } *arm_request_response_t;
 121
 122 /* rawiso API */
 123 #include "ieee1394-ioctl.h"
 124
 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 };
 135
 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 };
 141
 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;
 145
 146         /* # of packets to buffer */
 147         __u32 buf_packets;
 148
 149         /* iso channel (set to -1 for multi-channel recv) */
 150         __s32 channel;
 151
 152         /* xmit only - iso transmission speed */
 153         __u8 speed;
 154
 155         /* The mode of the dma when receiving iso data. Must be supported by chip */
 156         __u8 dma_mode;
 157
 158         /* max. latency of buffer, in packets (-1 if you don't care) */
 159         __s32 irq_interval;
 160 };
 161
 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;
 166
 167         /* number of packets waiting to be filled with data (ISO transmission)
 168            or containing data received (ISO reception) */
 169         __u32 n_packets;
 170
 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;
 175
 176         /* cycle number at which next packet will be transmitted;
 177            -1 if not known */
 178         __s16 xmit_cycle;
 179 };
 180
 181 /* argument to RAW1394_IOC_GET_CYCLE_TIMER ioctl */
 182 struct raw1394_cycle_timer {
 183         /* contents of Isochronous Cycle Timer register,
 184            as in OHCI 1.1 clause 5.13 (also with non-OHCI hosts) */
 185         __u32 cycle_timer;
 186
 187         /* local time in microseconds since Epoch,
 188            simultaneously read with cycle timer */
 189         __u64 local_time;
 190 };
 191 #endif /* IEEE1394_RAW1394_H */