diff --git a/drivers/ieee1394/ieee1394.h b/drivers/ieee1394/ieee1394.h
new file mode 100644
index 0000000..b634a9b
--- /dev/null
+++ b/drivers/ieee1394/ieee1394.h
@@ -0,0 +1,202 @@
+/*
+ * Generic IEEE 1394 definitions
+ */
+
+#ifndef _IEEE1394_IEEE1394_H
+#define _IEEE1394_IEEE1394_H
+
+#define TCODE_WRITEQ             0x0
+#define TCODE_WRITEB             0x1
+#define TCODE_WRITE_RESPONSE     0x2
+#define TCODE_READQ              0x4
+#define TCODE_READB              0x5
+#define TCODE_READQ_RESPONSE     0x6
+#define TCODE_READB_RESPONSE     0x7
+#define TCODE_CYCLE_START        0x8
+#define TCODE_LOCK_REQUEST       0x9
+#define TCODE_ISO_DATA           0xa
+#define TCODE_STREAM_DATA        0xa
+#define TCODE_LOCK_RESPONSE      0xb
+
+#define RCODE_COMPLETE           0x0
+#define RCODE_CONFLICT_ERROR     0x4
+#define RCODE_DATA_ERROR         0x5
+#define RCODE_TYPE_ERROR         0x6
+#define RCODE_ADDRESS_ERROR      0x7
+
+#define EXTCODE_MASK_SWAP        0x1
+#define EXTCODE_COMPARE_SWAP     0x2
+#define EXTCODE_FETCH_ADD        0x3
+#define EXTCODE_LITTLE_ADD       0x4
+#define EXTCODE_BOUNDED_ADD      0x5
+#define EXTCODE_WRAP_ADD         0x6
+
+#define ACK_COMPLETE             0x1
+#define ACK_PENDING              0x2
+#define ACK_BUSY_X               0x4
+#define ACK_BUSY_A               0x5
+#define ACK_BUSY_B               0x6
+#define ACK_TARDY                0xb
+#define ACK_CONFLICT_ERROR       0xc
+#define ACK_DATA_ERROR           0xd
+#define ACK_TYPE_ERROR           0xe
+#define ACK_ADDRESS_ERROR        0xf
+
+/* Non-standard "ACK codes" for internal use */
+#define ACKX_NONE                (-1)
+#define ACKX_SEND_ERROR          (-2)
+#define ACKX_ABORTED             (-3)
+#define ACKX_TIMEOUT             (-4)
+
+
+#define IEEE1394_SPEED_100		0x00
+#define IEEE1394_SPEED_200		0x01
+#define IEEE1394_SPEED_400		0x02
+#define IEEE1394_SPEED_800		0x03
+#define IEEE1394_SPEED_1600		0x04
+#define IEEE1394_SPEED_3200		0x05
+/* The current highest tested speed supported by the subsystem */
+#define IEEE1394_SPEED_MAX		IEEE1394_SPEED_800
+
+/* Maps speed values above to a string representation */
+extern const char *hpsb_speedto_str[];
+
+
+#define SELFID_PWRCL_NO_POWER    0x0
+#define SELFID_PWRCL_PROVIDE_15W 0x1
+#define SELFID_PWRCL_PROVIDE_30W 0x2
+#define SELFID_PWRCL_PROVIDE_45W 0x3
+#define SELFID_PWRCL_USE_1W      0x4
+#define SELFID_PWRCL_USE_3W      0x5
+#define SELFID_PWRCL_USE_6W      0x6
+#define SELFID_PWRCL_USE_10W     0x7
+
+#define SELFID_PORT_CHILD        0x3
+#define SELFID_PORT_PARENT       0x2
+#define SELFID_PORT_NCONN        0x1
+#define SELFID_PORT_NONE         0x0
+
+
+/* 1394a PHY bitmasks */
+#define PHY_00_PHYSICAL_ID       0xFC
+#define PHY_00_R                 0x02 /* Root */
+#define PHY_00_PS                0x01 /* Power Status*/
+#define PHY_01_RHB               0x80 /* Root Hold-Off */
+#define PHY_01_IBR               0x80 /* Initiate Bus Reset */
+#define PHY_01_GAP_COUNT         0x3F
+#define PHY_02_EXTENDED          0xE0 /* 0x7 for 1394a-compliant PHY */
+#define PHY_02_TOTAL_PORTS       0x1F
+#define PHY_03_MAX_SPEED         0xE0
+#define PHY_03_DELAY             0x0F
+#define PHY_04_LCTRL             0x80 /* Link Active Report Control */
+#define PHY_04_CONTENDER         0x40
+#define PHY_04_JITTER            0x38
+#define PHY_04_PWR_CLASS         0x07 /* Power Class */
+#define PHY_05_WATCHDOG          0x80
+#define PHY_05_ISBR              0x40 /* Initiate Short Bus Reset */
+#define PHY_05_LOOP              0x20 /* Loop Detect */
+#define PHY_05_PWR_FAIL          0x10 /* Cable Power Failure Detect */
+#define PHY_05_TIMEOUT           0x08 /* Arbitration State Machine Timeout */
+#define PHY_05_PORT_EVENT        0x04 /* Port Event Detect */
+#define PHY_05_ENAB_ACCEL        0x02 /* Enable Arbitration Acceleration */
+#define PHY_05_ENAB_MULTI        0x01 /* Ena. Multispeed Packet Concatenation */
+
+#include <asm/byteorder.h>
+
+#ifdef __BIG_ENDIAN_BITFIELD
+
+struct selfid {
+        u32 packet_identifier:2; /* always binary 10 */
+        u32 phy_id:6;
+        /* byte */
+        u32 extended:1; /* if true is struct ext_selfid */
+        u32 link_active:1;
+        u32 gap_count:6;
+        /* byte */
+        u32 speed:2;
+        u32 phy_delay:2;
+        u32 contender:1;
+        u32 power_class:3;
+        /* byte */
+        u32 port0:2;
+        u32 port1:2;
+        u32 port2:2;
+        u32 initiated_reset:1;
+        u32 more_packets:1;
+} __attribute__((packed));
+
+struct ext_selfid {
+        u32 packet_identifier:2; /* always binary 10 */
+        u32 phy_id:6;
+        /* byte */
+        u32 extended:1; /* if false is struct selfid */
+        u32 seq_nr:3;
+        u32 reserved:2;
+        u32 porta:2;
+        /* byte */
+        u32 portb:2;
+        u32 portc:2;
+        u32 portd:2;
+        u32 porte:2;
+        /* byte */
+        u32 portf:2;
+        u32 portg:2;
+        u32 porth:2;
+        u32 reserved2:1;
+        u32 more_packets:1;
+} __attribute__((packed));
+
+#elif defined __LITTLE_ENDIAN_BITFIELD /* __BIG_ENDIAN_BITFIELD */
+
+/*
+ * Note: these mean to be bit fields of a big endian SelfID as seen on a little
+ * endian machine.  Without swapping.
+ */
+
+struct selfid {
+        u32 phy_id:6;
+        u32 packet_identifier:2; /* always binary 10 */
+        /* byte */
+        u32 gap_count:6;
+        u32 link_active:1;
+        u32 extended:1; /* if true is struct ext_selfid */
+        /* byte */
+        u32 power_class:3;
+        u32 contender:1;
+        u32 phy_delay:2;
+        u32 speed:2;
+        /* byte */
+        u32 more_packets:1;
+        u32 initiated_reset:1;
+        u32 port2:2;
+        u32 port1:2;
+        u32 port0:2;
+} __attribute__((packed));
+
+struct ext_selfid {
+        u32 phy_id:6;
+        u32 packet_identifier:2; /* always binary 10 */
+        /* byte */
+        u32 porta:2;
+        u32 reserved:2;
+        u32 seq_nr:3;
+        u32 extended:1; /* if false is struct selfid */
+        /* byte */
+        u32 porte:2;
+        u32 portd:2;
+        u32 portc:2;
+        u32 portb:2;
+        /* byte */
+        u32 more_packets:1;
+        u32 reserved2:1;
+        u32 porth:2;
+        u32 portg:2;
+        u32 portf:2;
+} __attribute__((packed));
+
+#else
+#error What? PDP endian?
+#endif /* __BIG_ENDIAN_BITFIELD */
+
+
+#endif /* _IEEE1394_IEEE1394_H */