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_TARDY                0xb
  40 #define ACK_CONFLICT_ERROR       0xc
  41 #define ACK_DATA_ERROR           0xd
  42 #define ACK_TYPE_ERROR           0xe
  43 #define ACK_ADDRESS_ERROR        0xf
  44
  45 /* Non-standard "ACK codes" for internal use */
  46 #define ACKX_NONE                (-1)
  47 #define ACKX_SEND_ERROR          (-2)
  48 #define ACKX_ABORTED             (-3)
  49 #define ACKX_TIMEOUT             (-4)
  50
  51
  52 #define IEEE1394_SPEED_100              0x00
  53 #define IEEE1394_SPEED_200              0x01
  54 #define IEEE1394_SPEED_400              0x02
  55 #define IEEE1394_SPEED_800              0x03
  56 #define IEEE1394_SPEED_1600             0x04
  57 #define IEEE1394_SPEED_3200             0x05
  58 /* The current highest tested speed supported by the subsystem */
  59 #define IEEE1394_SPEED_MAX              IEEE1394_SPEED_800
  60
  61 /* Maps speed values above to a string representation */
  62 extern const char *hpsb_speedto_str[];
  63
  64
  65 #define SELFID_PWRCL_NO_POWER    0x0
  66 #define SELFID_PWRCL_PROVIDE_15W 0x1
  67 #define SELFID_PWRCL_PROVIDE_30W 0x2
  68 #define SELFID_PWRCL_PROVIDE_45W 0x3
  69 #define SELFID_PWRCL_USE_1W      0x4
  70 #define SELFID_PWRCL_USE_3W      0x5
  71 #define SELFID_PWRCL_USE_6W      0x6
  72 #define SELFID_PWRCL_USE_10W     0x7
  73
  74 #define SELFID_PORT_CHILD        0x3
  75 #define SELFID_PORT_PARENT       0x2
  76 #define SELFID_PORT_NCONN        0x1
  77 #define SELFID_PORT_NONE         0x0
  78
  79
  80 #include <asm/byteorder.h>
  81
  82 #ifdef __BIG_ENDIAN_BITFIELD
  83
  84 struct selfid {
  85         u32 packet_identifier:2; /* always binary 10 */
  86         u32 phy_id:6;
  87         /* byte */
  88         u32 extended:1; /* if true is struct ext_selfid */
  89         u32 link_active:1;
  90         u32 gap_count:6;
  91         /* byte */
  92         u32 speed:2;
  93         u32 phy_delay:2;
  94         u32 contender:1;
  95         u32 power_class:3;
  96         /* byte */
  97         u32 port0:2;
  98         u32 port1:2;
  99         u32 port2:2;
 100         u32 initiated_reset:1;
 101         u32 more_packets:1;
 102 } __attribute__((packed));
 103
 104 struct ext_selfid {
 105         u32 packet_identifier:2; /* always binary 10 */
 106         u32 phy_id:6;
 107         /* byte */
 108         u32 extended:1; /* if false is struct selfid */
 109         u32 seq_nr:3;
 110         u32 reserved:2;
 111         u32 porta:2;
 112         /* byte */
 113         u32 portb:2;
 114         u32 portc:2;
 115         u32 portd:2;
 116         u32 porte:2;
 117         /* byte */
 118         u32 portf:2;
 119         u32 portg:2;
 120         u32 porth:2;
 121         u32 reserved2:1;
 122         u32 more_packets:1;
 123 } __attribute__((packed));
 124
 125 #elif defined __LITTLE_ENDIAN_BITFIELD /* __BIG_ENDIAN_BITFIELD */
 126
 127 /*
 128  * Note: these mean to be bit fields of a big endian SelfID as seen on a little
 129  * endian machine.  Without swapping.
 130  */
 131
 132 struct selfid {
 133         u32 phy_id:6;
 134         u32 packet_identifier:2; /* always binary 10 */
 135         /* byte */
 136         u32 gap_count:6;
 137         u32 link_active:1;
 138         u32 extended:1; /* if true is struct ext_selfid */
 139         /* byte */
 140         u32 power_class:3;
 141         u32 contender:1;
 142         u32 phy_delay:2;
 143         u32 speed:2;
 144         /* byte */
 145         u32 more_packets:1;
 146         u32 initiated_reset:1;
 147         u32 port2:2;
 148         u32 port1:2;
 149         u32 port0:2;
 150 } __attribute__((packed));
 151
 152 struct ext_selfid {
 153         u32 phy_id:6;
 154         u32 packet_identifier:2; /* always binary 10 */
 155         /* byte */
 156         u32 porta:2;
 157         u32 reserved:2;
 158         u32 seq_nr:3;
 159         u32 extended:1; /* if false is struct selfid */
 160         /* byte */
 161         u32 porte:2;
 162         u32 portd:2;
 163         u32 portc:2;
 164         u32 portb:2;
 165         /* byte */
 166         u32 more_packets:1;
 167         u32 reserved2:1;
 168         u32 porth:2;
 169         u32 portg:2;
 170         u32 portf:2;
 171 } __attribute__((packed));
 172
 173 #else
 174 #error What? PDP endian?
 175 #endif /* __BIG_ENDIAN_BITFIELD */
 176
 177
 178 #endif /* _IEEE1394_IEEE1394_H */