linux/drivers/isdn/hardware/eicon/dqueue.h
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

31 lines
1,007 B
C

/* $Id: dqueue.h,v 1.1.2.2 2001/02/08 12:25:43 armin Exp $ */
#ifndef _DIVA_USER_MODE_IDI_DATA_QUEUE_H__
#define _DIVA_USER_MODE_IDI_DATA_QUEUE_H__
#define DIVA_UM_IDI_MAX_MSGS 64
typedef struct _diva_um_idi_data_queue {
int segments;
int max_length;
int read;
int write;
int count;
int segment_pending;
void *data[DIVA_UM_IDI_MAX_MSGS];
int length[DIVA_UM_IDI_MAX_MSGS];
} diva_um_idi_data_queue_t;
int diva_data_q_init(diva_um_idi_data_queue_t * q,
int max_length, int max_segments);
int diva_data_q_finit(diva_um_idi_data_queue_t * q);
int diva_data_q_get_max_length(const diva_um_idi_data_queue_t * q);
void *diva_data_q_get_segment4write(diva_um_idi_data_queue_t * q);
void diva_data_q_ack_segment4write(diva_um_idi_data_queue_t * q,
int length);
const void *diva_data_q_get_segment4read(const diva_um_idi_data_queue_t *
q);
int diva_data_q_get_segment_length(const diva_um_idi_data_queue_t * q);
void diva_data_q_ack_segment4read(diva_um_idi_data_queue_t * q);
#endif