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      1     0    stevel /*
      2     0    stevel  * CDDL HEADER START
      3     0    stevel  *
      4     0    stevel  * The contents of this file are subject to the terms of the
      5  2282  jb145095  * Common Development and Distribution License (the "License").
      6  2282  jb145095  * You may not use this file except in compliance with the License.
      7     0    stevel  *
      8     0    stevel  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9     0    stevel  * or http://www.opensolaris.org/os/licensing.
     10     0    stevel  * See the License for the specific language governing permissions
     11     0    stevel  * and limitations under the License.
     12     0    stevel  *
     13     0    stevel  * When distributing Covered Code, include this CDDL HEADER in each
     14     0    stevel  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15     0    stevel  * If applicable, add the following below this CDDL HEADER, with the
     16     0    stevel  * fields enclosed by brackets "[]" replaced with your own identifying
     17     0    stevel  * information: Portions Copyright [yyyy] [name of copyright owner]
     18     0    stevel  *
     19     0    stevel  * CDDL HEADER END
     20     0    stevel  */
     21     0    stevel /*
     22  5974   jm22469  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
     23     0    stevel  * Use is subject to license terms.
     24     0    stevel  */
     25     0    stevel 
     26     0    stevel #ifndef	_QCN_H
     27     0    stevel #define	_QCN_H
     28     0    stevel 
     29     0    stevel #pragma ident	"%Z%%M%	%I%	%E% SMI"
     30     0    stevel 
     31     0    stevel #ifdef __cplusplus
     32     0    stevel extern "C" {
     33     0    stevel #endif
     34     0    stevel 
     35     0    stevel /*
     36     0    stevel  * sun4v Console driver
     37     0    stevel  */
     38     0    stevel 
     39     0    stevel #include <sys/types.h>
     40     0    stevel #include <sys/stream.h>
     41     0    stevel #include <sys/tty.h>
     42     0    stevel #include <sys/ddi.h>
     43     0    stevel #include <sys/sunddi.h>
     44  5974   jm22469 #include <sys/consdev.h>
     45     0    stevel 
     46     0    stevel #define	RINGBITS	8		/* # of bits in ring ptrs */
     47     0    stevel #define	RINGSIZE	(1<<RINGBITS)	/* size of ring */
     48     0    stevel #define	RINGMASK	(RINGSIZE-1)
     49     0    stevel 
     50     0    stevel #define	RING_INIT(qsp)	((qsp)->qcn_rput = (qsp)->qcn_rget = 0)
     51     0    stevel #define	RING_CNT(qsp)	(((qsp)->qcn_rput - (qsp)->qcn_rget) & RINGMASK)
     52     0    stevel #define	RING_POK(qsp, n) ((int)RING_CNT(qsp) < (int)(RINGSIZE-(n)))
     53     0    stevel #define	RING_PUT(qsp, c) \
     54     0    stevel 	((qsp)->qcn_ring[(qsp)->qcn_rput++ & RINGMASK] =  (uchar_t)(c))
     55     0    stevel #define	RING_GET(qsp)	((qsp)->qcn_ring[(qsp)->qcn_rget++ & RINGMASK])
     56  2282  jb145095 #define	RING_ADDR(qsp)	(&((qsp)->qcn_ring[(qsp)->qcn_rget & RINGMASK]))
     57  2282  jb145095 #define	RING_POFF(qsp)	((qsp)->qcn_rput & RINGMASK)
     58  2282  jb145095 #define	RING_GOFF(qsp)	((qsp)->qcn_rget & RINGMASK)
     59  2282  jb145095 #define	RING_LEFT(qsp)	(RING_POFF(qsp) >= RING_GOFF(qsp) ? (RINGSIZE) - \
     60  2282  jb145095 			RING_POFF(qsp) : RING_GOFF(qsp) - RING_POFF(qsp))
     61  2282  jb145095 
     62  2282  jb145095 #define	RING_UPD(qsp, n)	((qsp)->qcn_rput += (n))
     63     0    stevel 
     64     0    stevel /*
     65     0    stevel  * qcn driver's soft state structure
     66     0    stevel  */
     67     0    stevel typedef struct qcn {
     68     0    stevel 	/* mutexes */
     69     0    stevel 	kmutex_t qcn_hi_lock;		/* protects qcn_t (soft state)	*/
     70     0    stevel 	kmutex_t qcn_lock;	/* protects output queue	*/
     71     0    stevel 
     72     0    stevel 	/* stream queues */
     73     0    stevel 	queue_t *qcn_writeq;		/* stream write queue		*/
     74     0    stevel 	queue_t	*qcn_readq;		/* stream read queue		*/
     75     0    stevel 
     76     0    stevel 	/* dev info */
     77     0    stevel 	dev_info_t	*qcn_dip;	/* dev_info			*/
     78     0    stevel 
     79     0    stevel 	/* for handling IOCTL messages */
     80     0    stevel 	bufcall_id_t	qcn_wbufcid;	/* for console ioctl	*/
     81     0    stevel 	tty_common_t	qcn_tty;	/* for console ioctl	*/
     82     0    stevel 
     83     0    stevel 	/* for console output timeout */
     84     0    stevel 	time_t qcn_sc_active;		/* last time (sec) SC was active */
     85     0    stevel 	uint_t	qcn_polling;
     86     0    stevel 	uchar_t	qcn_rget;
     87     0    stevel 	uchar_t	qcn_rput;
     88  2432  jb145095 
     89  2432  jb145095 	/* the following is protected by atomic operations */
     90  2432  jb145095 	volatile unsigned int	qcn_soft_pend;
     91  2432  jb145095 
     92     0    stevel 	ddi_softint_handle_t qcn_softint_hdl;
     93  2282  jb145095 	uchar_t	*qcn_ring;
     94     0    stevel 	ushort_t	qcn_hangup;
     95     0    stevel 	ddi_intr_handle_t *qcn_htable;	/* For array of interrupts */
     96     0    stevel 	int	qcn_intr_type;	/* What type of interrupt */
     97     0    stevel 	int	qcn_intr_cnt;	/* # of intrs count returned */
     98     0    stevel 	size_t	qcn_intr_size;	/* Size of intr array */
     99     0    stevel 	uint_t	qcn_intr_pri;	/* Interrupt priority   */
    100     0    stevel 	uint_t	qcn_rbuf_overflow;
    101  2282  jb145095 	/*
    102  2282  jb145095 	 * support for console read/write support
    103  2282  jb145095 	 */
    104  2282  jb145095 	int		(*cons_transmit)(queue_t *, mblk_t *);
    105  2282  jb145095 	void		(*cons_receive)(void);
    106  2282  jb145095 	char		*cons_write_buffer;
    107  2282  jb145095 	uint64_t	cons_write_buf_ra;
    108  2282  jb145095 	uint64_t	cons_read_buf_ra;
    109  5974   jm22469 
    110  5974   jm22469 	/*
    111  5974   jm22469 	 * support for polled io
    112  5974   jm22469 	 */
    113  5974   jm22469 	cons_polledio_t	qcn_polledio;
    114  5974   jm22469 	boolean_t	qcn_char_available;
    115  5974   jm22469 	uint8_t		qcn_hold_char;
    116     0    stevel } qcn_t;
    117  2432  jb145095 
    118  2432  jb145095 /* Constants for qcn_soft_pend */
    119  2432  jb145095 #define	QCN_SP_IDL	0	/* qcn_soft_pend is idle - do trigger */
    120  2432  jb145095 #define	QCN_SP_DO	1	/* soft interrupt needs to be processed */
    121  2432  jb145095 #define	QCN_SP_IP	2	/* in process, if interrupt, set DO, no trig */
    122     0    stevel 
    123     0    stevel /* Constants used by promif routines */
    124     0    stevel #define	QCN_CLNT_STR	"CON_CLNT"
    125     0    stevel #define	QCN_OBP_STR	"CON_OBP"
    126     0    stevel 
    127     0    stevel /* alternate break sequence */
    128     0    stevel extern void (*abort_seq_handler)();
    129     0    stevel 
    130     0    stevel extern struct mod_ops mod_driverops;
    131     0    stevel 
    132     0    stevel #define	QCN_TXINT_ENABLE	0x1
    133     0    stevel #define	QCN_RXINT_ENABLE	0x2
    134     0    stevel 
    135  2282  jb145095 /*
    136  2282  jb145095  * API major/minor definitions for console
    137  2282  jb145095  * read/write support.
    138  2282  jb145095  */
    139  2282  jb145095 
    140  2282  jb145095 #define	QCN_API_MAJOR	1
    141  2282  jb145095 #define	QCN_API_MINOR	1
    142  2282  jb145095 
    143  2282  jb145095 /*
    144  2282  jb145095  * The buffer size must be a power of 2 or contig_mem_alloc will fail
    145  2282  jb145095  */
    146  2282  jb145095 #define	CONS_WR_BUF_SIZE	64
    147  2282  jb145095 
    148     0    stevel #ifdef __cplusplus
    149     0    stevel }
    150     0    stevel #endif
    151     0    stevel 
    152     0    stevel #endif	/* _QCN_H */
    153