ohci1394.h

ieee1394驱动,不多说了!直接可以在linux2.6内核中使用

static inline int cross_bound(unsigned long addr, unsigned int size)
{
	if (size == 0)
		return 0;

	if (size > PAGE_SIZE)
		return 1;

	if (addr >> PAGE_SHIFT != (addr + size - 1) >> PAGE_SHIFT)
		return 1;

	return 0;
}

/*
 * Register read and write helper functions.
 */
static inline void reg_write(const struct ti_ohci *ohci, int offset, u32 data)
{
        writel(data, ohci->registers + offset);
}

static inline u32 reg_read(const struct ti_ohci *ohci, int offset)
{
        return readl(ohci->registers + offset);
}


/* 2 KiloBytes of register space */
#define OHCI1394_REGISTER_SIZE                0x800

/* Offsets relative to context bases defined below */

#define OHCI1394_ContextControlSet            0x000
#define OHCI1394_ContextControlClear          0x004
#define OHCI1394_ContextCommandPtr            0x00C

/* register map */
#define OHCI1394_Version                      0x000
#define OHCI1394_GUID_ROM                     0x004
#define OHCI1394_ATRetries                    0x008
#define OHCI1394_CSRData                      0x00C
#define OHCI1394_CSRCompareData               0x010
#define OHCI1394_CSRControl                   0x014
#define OHCI1394_ConfigROMhdr                 0x018
#define OHCI1394_BusID                        0x01C
#define OHCI1394_BusOptions                   0x020
#define OHCI1394_GUIDHi                       0x024
#define OHCI1394_GUIDLo                       0x028
#define OHCI1394_ConfigROMmap                 0x034
#define OHCI1394_PostedWriteAddressLo         0x038
#define OHCI1394_PostedWriteAddressHi         0x03C
#define OHCI1394_VendorID                     0x040
#define OHCI1394_HCControlSet                 0x050
#define OHCI1394_HCControlClear               0x054
#define  OHCI1394_HCControl_noByteSwap		0x40000000
#define  OHCI1394_HCControl_programPhyEnable	0x00800000
#define  OHCI1394_HCControl_aPhyEnhanceEnable	0x00400000
#define  OHCI1394_HCControl_LPS			0x00080000
#define  OHCI1394_HCControl_postedWriteEnable	0x00040000
#define  OHCI1394_HCControl_linkEnable		0x00020000
#define  OHCI1394_HCControl_softReset		0x00010000
#define OHCI1394_SelfIDBuffer                 0x064
#define OHCI1394_SelfIDCount                  0x068
#define OHCI1394_IRMultiChanMaskHiSet         0x070
#define OHCI1394_IRMultiChanMaskHiClear       0x074
#define OHCI1394_IRMultiChanMaskLoSet         0x078
#define OHCI1394_IRMultiChanMaskLoClear       0x07C
#define OHCI1394_IntEventSet                  0x080
#define OHCI1394_IntEventClear                0x084
#define OHCI1394_IntMaskSet                   0x088
#define OHCI1394_IntMaskClear                 0x08C
#define OHCI1394_IsoXmitIntEventSet           0x090
#define OHCI1394_IsoXmitIntEventClear         0x094
#define OHCI1394_IsoXmitIntMaskSet            0x098
#define OHCI1394_IsoXmitIntMaskClear          0x09C
#define OHCI1394_IsoRecvIntEventSet           0x0A0
#define OHCI1394_IsoRecvIntEventClear         0x0A4
#define OHCI1394_IsoRecvIntMaskSet            0x0A8
#define OHCI1394_IsoRecvIntMaskClear          0x0AC
#define OHCI1394_InitialBandwidthAvailable    0x0B0
#define OHCI1394_InitialChannelsAvailableHi   0x0B4
#define OHCI1394_InitialChannelsAvailableLo   0x0B8
#define OHCI1394_FairnessControl              0x0DC
#define OHCI1394_LinkControlSet               0x0E0
#define OHCI1394_LinkControlClear             0x0E4
#define  OHCI1394_LinkControl_RcvSelfID		0x00000200
#define  OHCI1394_LinkControl_RcvPhyPkt		0x00000400
#define  OHCI1394_LinkControl_CycleTimerEnable	0x00100000
#define  OHCI1394_LinkControl_CycleMaster	0x00200000
#define  OHCI1394_LinkControl_CycleSource	0x00400000
#define OHCI1394_NodeID                       0x0E8
#define OHCI1394_PhyControl                   0x0EC
#define OHCI1394_IsochronousCycleTimer        0x0F0
#define OHCI1394_AsReqFilterHiSet             0x100
#define OHCI1394_AsReqFilterHiClear           0x104
#define OHCI1394_AsReqFilterLoSet             0x108
#define OHCI1394_AsReqFilterLoClear           0x10C
#define OHCI1394_PhyReqFilterHiSet            0x110
#define OHCI1394_PhyReqFilterHiClear          0x114
#define OHCI1394_PhyReqFilterLoSet            0x118
#define OHCI1394_PhyReqFilterLoClear          0x11C
#define OHCI1394_PhyUpperBound                0x120

#define OHCI1394_AsReqTrContextBase           0x180
#define OHCI1394_AsReqTrContextControlSet     0x180
#define OHCI1394_AsReqTrContextControlClear   0x184
#define OHCI1394_AsReqTrCommandPtr            0x18C

#define OHCI1394_AsRspTrContextBase           0x1A0
#define OHCI1394_AsRspTrContextControlSet     0x1A0
#define OHCI1394_AsRspTrContextControlClear   0x1A4
#define OHCI1394_AsRspTrCommandPtr            0x1AC

#define OHCI1394_AsReqRcvContextBase          0x1C0
#define OHCI1394_AsReqRcvContextControlSet    0x1C0
#define OHCI1394_AsReqRcvContextControlClear  0x1C4
#define OHCI1394_AsReqRcvCommandPtr           0x1CC

#define OHCI1394_AsRspRcvContextBase          0x1E0
#define OHCI1394_AsRspRcvContextControlSet    0x1E0
#define OHCI1394_AsRspRcvContextControlClear  0x1E4
#define OHCI1394_AsRspRcvCommandPtr           0x1EC

/* Isochronous transmit registers */
/* Add (16 * n) for context n */
#define OHCI1394_IsoXmitContextBase           0x200
#define OHCI1394_IsoXmitContextControlSet     0x200
#define OHCI1394_IsoXmitContextControlClear   0x204
#define OHCI1394_IsoXmitCommandPtr            0x20C

/* Isochronous receive registers */
/* Add (32 * n) for context n */
#define OHCI1394_IsoRcvContextBase            0x400
#define OHCI1394_IsoRcvContextControlSet      0x400
#define OHCI1394_IsoRcvContextControlClear    0x404
#define OHCI1394_IsoRcvCommandPtr             0x40C
#define OHCI1394_IsoRcvContextMatch           0x410

/* Interrupts Mask/Events */

#define OHCI1394_reqTxComplete           0x00000001
#define OHCI1394_respTxComplete          0x00000002
#define OHCI1394_ARRQ                    0x00000004
#define OHCI1394_ARRS                    0x00000008
#define OHCI1394_RQPkt                   0x00000010
#define OHCI1394_RSPkt                   0x00000020
#define OHCI1394_isochTx                 0x00000040
#define OHCI1394_isochRx                 0x00000080
#define OHCI1394_postedWriteErr          0x00000100
#define OHCI1394_lockRespErr             0x00000200
#define OHCI1394_selfIDComplete          0x00010000
#define OHCI1394_busReset                0x00020000
#define OHCI1394_phy                     0x00080000
#define OHCI1394_cycleSynch              0x00100000
#define OHCI1394_cycle64Seconds          0x00200000
#define OHCI1394_cycleLost               0x00400000
#define OHCI1394_cycleInconsistent       0x00800000
#define OHCI1394_unrecoverableError      0x01000000
#define OHCI1394_cycleTooLong            0x02000000
#define OHCI1394_phyRegRcvd              0x04000000
#define OHCI1394_masterIntEnable         0x80000000

/* DMA Control flags */
#define DMA_CTL_OUTPUT_MORE              0x00000000
#define DMA_CTL_OUTPUT_LAST              0x10000000
#define DMA_CTL_INPUT_MORE               0x20000000
#define DMA_CTL_INPUT_LAST               0x30000000
#define DMA_CTL_UPDATE                   0x08000000
#define DMA_CTL_IMMEDIATE                0x02000000
#define DMA_CTL_IRQ                      0x00300000
#define DMA_CTL_BRANCH                   0x000c0000
#define DMA_CTL_WAIT                     0x00030000

/* OHCI evt_* error types, table 3-2 of the OHCI 1.1 spec. */
#define EVT_NO_STATUS		0x0	/* No event status */
#define EVT_RESERVED_A		0x1	/* Reserved, not used !!! */
#define EVT_LONG_PACKET		0x2	/* The revc data was longer than the buf */
#define EVT_MISSING_ACK		0x3	/* A subaction gap was detected before an ack
					   arrived, or recv'd ack had a parity error */
#define EVT_UNDERRUN		0x4	/* Underrun on corresponding FIFO, packet
					   truncated */
#define EVT_OVERRUN		0x5	/* A recv FIFO overflowed on reception of ISO
					   packet */
#define EVT_DESCRIPTOR_READ	0x6	/* An unrecoverable error occurred while host was
					   reading a descriptor block */
#define EVT_DATA_READ		0x7	/* An error occurred while host controller was
					   attempting to read from host memory in the data
					   stage of descriptor processing */
#define EVT_DATA_WRITE		0x8	/* An error occurred while host controller was
					   attempting to write either during the data stage
					   of descriptor processing, or when processing a single
					   16-bit host memory write */
#define EVT_BUS_RESET		0x9	/* Identifies a PHY packet in the recv buffer as
					   being a synthesized bus reset packet */
#define EVT_TIMEOUT		0xa	/* Indicates that the asynchronous transmit response
					   packet expired and was not transmitted, or that an
					   IT DMA context experienced a skip processing overflow */
#define EVT_TCODE_ERR		0xb	/* A bad tCode is associated with this packet.
					   The packet was flushed */
#define EVT_RESERVED_B		0xc	/* Reserved, not used !!! */
#define EVT_RESERVED_C		0xd	/* Reserved, not used !!! */
#define EVT_UNKNOWN		0xe	/* An error condition has occurred that cannot be
					   represented by any other event codes defined herein. */
#define EVT_FLUSHED		0xf	/* Send by the link side of output FIFO when asynchronous
					   packets are being flushed due to a bus reset. */

#define OHCI1394_TCODE_PHY               0xE

/* Node offset map (phys DMA area, posted write area).
 * The value of OHCI1394_PHYS_UPPER_BOUND_PROGRAMMED may be modified but must
 * be lower than OHCI1394_MIDDLE_ADDRESS_SPACE.
 * OHCI1394_PHYS_UPPER_BOUND_FIXED and OHCI1394_MIDDLE_ADDRESS_SPACE are
 * constants given by the OHCI spec.
 */
#define OHCI1394_PHYS_UPPER_BOUND_FIXED		0x000100000000ULL /* 4 GB */
#define OHCI1394_PHYS_UPPER_BOUND_PROGRAMMED	0x010000000000ULL /* 1 TB */
#define OHCI1394_MIDDLE_ADDRESS_SPACE		0xffff00000000ULL

void ohci1394_init_iso_tasklet(struct ohci1394_iso_tasklet *tasklet,
			       int type,
			       void (*func)(unsigned long),
			       unsigned long data);
int ohci1394_register_iso_tasklet(struct ti_ohci *ohci,
				  struct ohci1394_iso_tasklet *tasklet);
void ohci1394_unregister_iso_tasklet(struct ti_ohci *ohci,
				     struct ohci1394_iso_tasklet *tasklet);

/* returns zero if successful, one if DMA context is locked up */
int ohci1394_stop_context      (struct ti_ohci *ohci, int reg, char *msg);
struct ti_ohci *ohci1394_get_struct(int card_num);

#endif