drivers/ieee1394/ieee1394.h

   1 /*
   2  * Generic IEEE 1394 definitions
   3  */
   4
   5 #ifndef _IEEE1394_IEEE1394_H
   6 #define _IEEE1394_IEEE1394_H
   7
   8 #define TCODE_WRITEQ             0x0
   9 #define TCODE_WRITEB             0x1
  10 #define TCODE_WRITE_RESPONSE     0x2
  11 #define TCODE_READQ              0x4
  12 #define TCODE_READB              0x5
  13 #define TCODE_READQ_RESPONSE     0x6
  14 #define TCODE_READB_RESPONSE     0x7
  15 #define TCODE_CYCLE_START        0x8
  16 #define TCODE_LOCK_REQUEST       0x9
  17 #define TCODE_ISO_DATA           0xa
  18 #define TCODE_STREAM_DATA        0xa
  19 #define TCODE_LOCK_RESPONSE      0xb
  20
  21 #define RCODE_COMPLETE           0x0
  22 #define RCODE_CONFLICT_ERROR     0x4
  23 #define RCODE_DATA_ERROR         0x5
  24 #define RCODE_TYPE_ERROR         0x6
  25 #define RCODE_ADDRESS_ERROR      0x7
  26
  27 #define EXTCODE_MASK_SWAP        0x1
  28 #define EXTCODE_COMPARE_SWAP     0x2
  29 #define EXTCODE_FETCH_ADD        0x3
  30 #define EXTCODE_LITTLE_ADD       0x4
  31 #define EXTCODE_BOUNDED_ADD      0x5
  32 #define EXTCODE_WRAP_ADD         0x6
  33
  34 #define ACK_COMPLETE             0x1
  35 #define ACK_PENDING              0x2
  36 #define ACK_BUSY_X               0x4
  37 #define ACK_BUSY_A               0x5
  38 #define ACK_BUSY_B               0x6
  39 #define ACK_DATA_ERROR           0xd
  40 #define ACK_TYPE_ERROR           0xe
  41
  42 /* Non-standard "ACK codes" for internal use */
  43 #define ACKX_NONE                (-1)
  44 #define ACKX_SEND_ERROR          (-2)
  45 #define ACKX_ABORTED             (-3)
  46 #define ACKX_TIMEOUT             (-4)
  47
  48
  49 #define IEEE1394_SPEED_100              0x00
  50 #define IEEE1394_SPEED_200              0x01
  51 #define IEEE1394_SPEED_400              0x02
  52 #define IEEE1394_SPEED_800              0x03
  53 #define IEEE1394_SPEED_1600             0x04
  54 #define IEEE1394_SPEED_3200             0x05
  55 /* The current highest tested speed supported by the subsystem */
  56 #define IEEE1394_SPEED_MAX              IEEE1394_SPEED_800
  57
  58 /* Maps speed values above to a string representation */
  59 extern const char *hpsb_speedto_str[];
  60
  61
  62 #define SELFID_PWRCL_NO_POWER    0x0
  63 #define SELFID_PWRCL_PROVIDE_15W 0x1
  64 #define SELFID_PWRCL_PROVIDE_30W 0x2
  65 #define SELFID_PWRCL_PROVIDE_45W 0x3
  66 #define SELFID_PWRCL_USE_1W      0x4
  67 #define SELFID_PWRCL_USE_3W      0x5
  68 #define SELFID_PWRCL_USE_6W      0x6
  69 #define SELFID_PWRCL_USE_10W     0x7
  70
  71 #define SELFID_PORT_CHILD        0x3
  72 #define SELFID_PORT_PARENT       0x2
  73 #define SELFID_PORT_NCONN        0x1
  74 #define SELFID_PORT_NONE         0x0
  75
  76
  77 #include <asm/byteorder.h>
  78
  79 #ifdef __BIG_ENDIAN_BITFIELD
  80
  81 struct selfid {
  82         u32 packet_identifier:2; /* always binary 10 */
  83         u32 phy_id:6;
  84         /* byte */
  85         u32 extended:1; /* if true is struct ext_selfid */
  86         u32 link_active:1;
  87         u32 gap_count:6;
  88         /* byte */
  89         u32 speed:2;
  90         u32 phy_delay:2;
  91         u32 contender:1;
  92         u32 power_class:3;
  93         /* byte */
  94         u32 port0:2;
  95         u32 port1:2;
  96         u32 port2:2;
  97         u32 initiated_reset:1;
  98         u32 more_packets:1;
  99 } __attribute__((packed));
 100
 101 struct ext_selfid {
 102         u32 packet_identifier:2; /* always binary 10 */
 103         u32 phy_id:6;
 104         /* byte */
 105         u32 extended:1; /* if false is struct selfid */
 106         u32 seq_nr:3;
 107         u32 reserved:2;
 108         u32 porta:2;
 109         /* byte */
 110         u32 portb:2;
 111         u32 portc:2;
 112         u32 portd:2;
 113         u32 porte:2;
 114         /* byte */
 115         u32 portf:2;
 116         u32 portg:2;
 117         u32 porth:2;
 118         u32 reserved2:1;
 119         u32 more_packets:1;
 120 } __attribute__((packed));
 121
 122 #elif defined __LITTLE_ENDIAN_BITFIELD /* __BIG_ENDIAN_BITFIELD */
 123
 124 /*
 125  * Note: these mean to be bit fields of a big endian SelfID as seen on a little
 126  * endian machine.  Without swapping.
 127  */
 128
 129 struct selfid {
 130         u32 phy_id:6;
 131         u32 packet_identifier:2; /* always binary 10 */
 132         /* byte */
 133         u32 gap_count:6;
 134         u32 link_active:1;
 135         u32 extended:1; /* if true is struct ext_selfid */
 136         /* byte */
 137         u32 power_class:3;
 138         u32 contender:1;
 139         u32 phy_delay:2;
 140         u32 speed:2;
 141         /* byte */
 142         u32 more_packets:1;
 143         u32 initiated_reset:1;
 144         u32 port2:2;
 145         u32 port1:2;
 146         u32 port0:2;
 147 } __attribute__((packed));
 148
 149 struct ext_selfid {
 150         u32 phy_id:6;
 151         u32 packet_identifier:2; /* always binary 10 */
 152         /* byte */
 153         u32 porta:2;
 154         u32 reserved:2;
 155         u32 seq_nr:3;
 156         u32 extended:1; /* if false is struct selfid */
 157         /* byte */
 158         u32 porte:2;
 159         u32 portd:2;
 160         u32 portc:2;
 161         u32 portb:2;
 162         /* byte */
 163         u32 more_packets:1;
 164         u32 reserved2:1;
 165         u32 porth:2;
 166         u32 portg:2;
 167         u32 portf:2;
 168 } __attribute__((packed));
 169
 170 #else
 171 #error What? PDP endian?
 172 #endif /* __BIG_ENDIAN_BITFIELD */
 173
 174
 175 #endif /* _IEEE1394_IEEE1394_H */