raw1394-private.h

1394在linux下单独的驱动程序代码

#ifndef IEEE1394_RAW1394_PRIVATE_H
#define IEEE1394_RAW1394_PRIVATE_H

/* header for definitions that are private to the raw1394 driver
and not visible to user-space */

#define RAW1394_DEVICE_MAJOR      171
#define RAW1394_DEVICE_NAME       "raw1394"

struct iso_block_store {
	atomic_t refcount;
	size_t data_size;
	quadlet_t data[0];
};

enum raw1394_iso_state { RAW1394_ISO_INACTIVE = 0,
RAW1394_ISO_RECV = 1,
RAW1394_ISO_XMIT = 2 };

struct file_info {
	struct list_head list;
	
	enum { opened, initialized, connected } state;
	unsigned int protocol_version;
	
	struct hpsb_host *host;
	
	struct list_head req_pending;
	struct list_head req_complete;
	struct semaphore complete_sem;
	spinlock_t reqlists_lock;
	wait_queue_head_t poll_wait_complete;
	
	struct list_head addr_list;           
	
	u8 *fcp_buffer;
	
	/* old ISO API */
	u64 listen_channels;
	quadlet_t *iso_buffer;
	size_t iso_buffer_length;
	
	u8 notification; /* (busreset-notification) RAW1394_NOTIFY_OFF/ON */
	
	/* new rawiso API */
	enum raw1394_iso_state iso_state;
	struct hpsb_iso *iso_handle;
};

struct arm_addr {
	struct list_head addr_list; /* file_info list */
	u64    start, end;
	u64    arm_tag;
	u8     access_rights;
	u8     notification_options;
	u8     client_transactions;
	u64    recvb;
	u16    rec_length;
	u8     *addr_space_buffer; /* accessed by read/write/lock */
};

struct pending_request {
	struct list_head list;
	struct file_info *file_info;
	struct hpsb_packet *packet;
	struct iso_block_store *ibs;
	quadlet_t *data;
	int free_data;
	struct raw1394_request req;
};

struct host_info {
	struct list_head list;
	struct hpsb_host *host;
	struct list_head file_info_list;
};

#endif  /* IEEE1394_RAW1394_PRIVATE_H */