blob: d2116478123327e6bbdfc32d5338eb5d0fea4fb1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2006 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])
#define RING_ADDR(qsp) (&((qsp)->qcn_ring[(qsp)->qcn_rget & RINGMASK]))
#define RING_POFF(qsp) ((qsp)->qcn_rput & RINGMASK)
#define RING_GOFF(qsp) ((qsp)->qcn_rget & RINGMASK)
#define RING_LEFT(qsp) (RING_POFF(qsp) >= RING_GOFF(qsp) ? (RINGSIZE) - \
RING_POFF(qsp) : RING_GOFF(qsp) - RING_POFF(qsp))
#define RING_UPD(qsp, n) ((qsp)->qcn_rput += (n))
/*
* qcn driver's soft state structure
*/
typedef struct qcn {
/* mutexes */
kmutex_t qcn_hi_lock; /* protects qcn_t (soft state) */
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;
/* the following is protected by atomic operations */
volatile unsigned int qcn_soft_pend;
ddi_softint_handle_t qcn_softint_hdl;
uchar_t *qcn_ring;
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 */
uint_t qcn_rbuf_overflow;
/*
* support for console read/write support
*/
int (*cons_transmit)(queue_t *, mblk_t *);
void (*cons_receive)(void);
char *cons_write_buffer;
uint64_t cons_write_buf_ra;
uint64_t cons_read_buf_ra;
} qcn_t;
/* Constants for qcn_soft_pend */
#define QCN_SP_IDL 0 /* qcn_soft_pend is idle - do trigger */
#define QCN_SP_DO 1 /* soft interrupt needs to be processed */
#define QCN_SP_IP 2 /* in process, if interrupt, set DO, no trig */
/* 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
/*
* API major/minor definitions for console
* read/write support.
*/
#define QCN_API_MAJOR 1
#define QCN_API_MINOR 1
/*
* The buffer size must be a power of 2 or contig_mem_alloc will fail
*/
#define CONS_WR_BUF_SIZE 64
#ifdef __cplusplus
}
#endif
#endif /* _QCN_H */
|
