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 #define IEEE1394_SPEED_100      0x00
  52 #define IEEE1394_SPEED_200      0x01
  53 #define IEEE1394_SPEED_400      0x02
  54 #define IEEE1394_SPEED_800      0x03
  55 #define IEEE1394_SPEED_1600     0x04
  56 #define IEEE1394_SPEED_3200     0x05
  57
  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 /* 1394a cable PHY packets */
  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 #define SELFID_SPEED_UNKNOWN            0x3     /* 1394b PHY */
  80
  81 #define PHYPACKET_LINKON                        0x40000000
  82 #define PHYPACKET_PHYCONFIG_R                   0x00800000
  83 #define PHYPACKET_PHYCONFIG_T                   0x00400000
  84 #define EXTPHYPACKET_TYPE_PING                  0x00000000
  85 #define EXTPHYPACKET_TYPE_REMOTEACCESS_BASE     0x00040000
  86 #define EXTPHYPACKET_TYPE_REMOTEACCESS_PAGED    0x00140000
  87 #define EXTPHYPACKET_TYPE_REMOTEREPLY_BASE      0x000C0000
  88 #define EXTPHYPACKET_TYPE_REMOTEREPLY_PAGED     0x001C0000
  89 #define EXTPHYPACKET_TYPE_REMOTECOMMAND         0x00200000
  90 #define EXTPHYPACKET_TYPE_REMOTECONFIRMATION    0x00280000
  91 #define EXTPHYPACKET_TYPE_RESUME                0x003C0000
  92
  93 #define EXTPHYPACKET_TYPEMASK                   0xC0FC0000
  94
  95 #define PHYPACKET_PORT_SHIFT            24
  96 #define PHYPACKET_GAPCOUNT_SHIFT        16
  97
  98 /* 1394a PHY register map bitmasks */
  99 #define PHY_00_PHYSICAL_ID      0xFC
 100 #define PHY_00_R                0x02 /* Root */
 101 #define PHY_00_PS               0x01 /* Power Status*/
 102 #define PHY_01_RHB              0x80 /* Root Hold-Off */
 103 #define PHY_01_IBR              0x80 /* Initiate Bus Reset */
 104 #define PHY_01_GAP_COUNT        0x3F
 105 #define PHY_02_EXTENDED         0xE0 /* 0x7 for 1394a-compliant PHY */
 106 #define PHY_02_TOTAL_PORTS      0x1F
 107 #define PHY_03_MAX_SPEED        0xE0
 108 #define PHY_03_DELAY            0x0F
 109 #define PHY_04_LCTRL            0x80 /* Link Active Report Control */
 110 #define PHY_04_CONTENDER        0x40
 111 #define PHY_04_JITTER           0x38
 112 #define PHY_04_PWR_CLASS        0x07 /* Power Class */
 113 #define PHY_05_WATCHDOG         0x80
 114 #define PHY_05_ISBR             0x40 /* Initiate Short Bus Reset */
 115 #define PHY_05_LOOP             0x20 /* Loop Detect */
 116 #define PHY_05_PWR_FAIL         0x10 /* Cable Power Failure Detect */
 117 #define PHY_05_TIMEOUT          0x08 /* Arbitration State Machine Timeout */
 118 #define PHY_05_PORT_EVENT       0x04 /* Port Event Detect */
 119 #define PHY_05_ENAB_ACCEL       0x02 /* Enable Arbitration Acceleration */
 120 #define PHY_05_ENAB_MULTI       0x01 /* Ena. Multispeed Packet Concatenation */
 121
 122 #include <asm/byteorder.h>
 123
 124 /* '1' '3' '9' '4' in ASCII */
 125 #define IEEE1394_BUSID_MAGIC    cpu_to_be32(0x31333934)
 126
 127 #ifdef __BIG_ENDIAN_BITFIELD
 128
 129 struct selfid {
 130         u32 packet_identifier:2; /* always binary 10 */
 131         u32 phy_id:6;
 132         /* byte */
 133         u32 extended:1; /* if true is struct ext_selfid */
 134         u32 link_active:1;
 135         u32 gap_count:6;
 136         /* byte */
 137         u32 speed:2;
 138         u32 phy_delay:2;
 139         u32 contender:1;
 140         u32 power_class:3;
 141         /* byte */
 142         u32 port0:2;
 143         u32 port1:2;
 144         u32 port2:2;
 145         u32 initiated_reset:1;
 146         u32 more_packets:1;
 147 } __attribute__((packed));
 148
 149 struct ext_selfid {
 150         u32 packet_identifier:2; /* always binary 10 */
 151         u32 phy_id:6;
 152         /* byte */
 153         u32 extended:1; /* if false is struct selfid */
 154         u32 seq_nr:3;
 155         u32 reserved:2;
 156         u32 porta:2;
 157         /* byte */
 158         u32 portb:2;
 159         u32 portc:2;
 160         u32 portd:2;
 161         u32 porte:2;
 162         /* byte */
 163         u32 portf:2;
 164         u32 portg:2;
 165         u32 porth:2;
 166         u32 reserved2:1;
 167         u32 more_packets:1;
 168 } __attribute__((packed));
 169
 170 #elif defined __LITTLE_ENDIAN_BITFIELD /* __BIG_ENDIAN_BITFIELD */
 171
 172 /*
 173  * Note: these mean to be bit fields of a big endian SelfID as seen on a little
 174  * endian machine.  Without swapping.
 175  */
 176
 177 struct selfid {
 178         u32 phy_id:6;
 179         u32 packet_identifier:2; /* always binary 10 */
 180         /* byte */
 181         u32 gap_count:6;
 182         u32 link_active:1;
 183         u32 extended:1; /* if true is struct ext_selfid */
 184         /* byte */
 185         u32 power_class:3;
 186         u32 contender:1;
 187         u32 phy_delay:2;
 188         u32 speed:2;
 189         /* byte */
 190         u32 more_packets:1;
 191         u32 initiated_reset:1;
 192         u32 port2:2;
 193         u32 port1:2;
 194         u32 port0:2;
 195 } __attribute__((packed));
 196
 197 struct ext_selfid {
 198         u32 phy_id:6;
 199         u32 packet_identifier:2; /* always binary 10 */
 200         /* byte */
 201         u32 porta:2;
 202         u32 reserved:2;
 203         u32 seq_nr:3;
 204         u32 extended:1; /* if false is struct selfid */
 205         /* byte */
 206         u32 porte:2;
 207         u32 portd:2;
 208         u32 portc:2;
 209         u32 portb:2;
 210         /* byte */
 211         u32 more_packets:1;
 212         u32 reserved2:1;
 213         u32 porth:2;
 214         u32 portg:2;
 215         u32 portf:2;
 216 } __attribute__((packed));
 217
 218 #else
 219 #error What? PDP endian?
 220 #endif /* __BIG_ENDIAN_BITFIELD */
 221
 222 #endif /* _IEEE1394_IEEE1394_H */