diff options
Diffstat (limited to 'drivers/isdn/hardware/eicon/dqueue.h')
| -rw-r--r-- | drivers/isdn/hardware/eicon/dqueue.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/eicon/dqueue.h b/drivers/isdn/hardware/eicon/dqueue.h new file mode 100644 index 000000000..2da979968 --- /dev/null +++ b/drivers/isdn/hardware/eicon/dqueue.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* $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 |