qcn.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _QCN_H
#define _QCN_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
/*
* sun4v Console driver
*/
#include <sys/types.h>
#include <sys/stream.h>
#include <sys/tty.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
#define RINGBITS 8 /* # of bits in ring ptrs */
#define RINGSIZE (1<<RINGBITS) /* size of ring */
#define RINGMASK (RINGSIZE-1)
#define RING_INIT(qsp) ((qsp)->qcn_rput = (qsp)->qcn_rget = 0)
#define RING_CNT(qsp) (((qsp)->qcn_rput - (qsp)->qcn_rget) & RINGMASK)
#define RING_POK(qsp, n) ((int)RING_CNT(qsp) < (int)(RINGSIZE-(n)))
#define RING_PUT(qsp, c) \
((qsp)->qcn_ring[(qsp)->qcn_rput++ & RINGMASK] = (uchar_t)(c))
#define RING_GET(qsp) ((qsp)->qcn_ring[(qsp)->qcn_rget++ & RINGMASK])
/*
* qcn driver's soft state structure
*/
typedef struct qcn {
/* mutexes */
kmutex_t qcn_hi_lock; /* protects qcn_t (soft state) */
kmutex_t qcn_softlock; /* protects input handler */
kmutex_t qcn_lock; /* protects output queue */
/* stream queues */
queue_t *qcn_writeq; /* stream write queue */
queue_t *qcn_readq; /* stream read queue */
/* dev info */
dev_info_t *qcn_dip; /* dev_info */
/* for handling IOCTL messages */
bufcall_id_t qcn_wbufcid; /* for console ioctl */
tty_common_t qcn_tty; /* for console ioctl */
/* for console output timeout */
time_t qcn_sc_active; /* last time (sec) SC was active */
uint_t qcn_polling;
uchar_t qcn_rget;
uchar_t qcn_rput;
int qcn_soft_pend;
ddi_softint_handle_t qcn_softint_hdl;
ushort_t qcn_ring[RINGSIZE];
ushort_t qcn_hangup;
ddi_intr_handle_t *qcn_htable; /* For array of interrupts */
int qcn_intr_type; /* What type of interrupt */
int qcn_intr_cnt; /* # of intrs count returned */
size_t qcn_intr_size; /* Size of intr array */
uint_t qcn_intr_pri; /* Interrupt priority */
ddi_iblock_cookie_t qcn_soft_pri;
uint_t qcn_rbuf_overflow;
} qcn_t;
/* Constants used by promif routines */
#define QCN_CLNT_STR "CON_CLNT"
#define QCN_OBP_STR "CON_OBP"
/* alternate break sequence */
extern void (*abort_seq_handler)();
extern struct mod_ops mod_driverops;
#define QCN_TXINT_ENABLE 0x1
#define QCN_RXINT_ENABLE 0x2
#ifdef __cplusplus
}
#endif
#endif /* _QCN_H */