1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _QCN_H 27 #define _QCN_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 /* 36 * sun4v Console driver 37 */ 38 39 #include <sys/types.h> 40 #include <sys/stream.h> 41 #include <sys/tty.h> 42 #include <sys/ddi.h> 43 #include <sys/sunddi.h> 44 45 #define RINGBITS 8 /* # of bits in ring ptrs */ 46 #define RINGSIZE (1<<RINGBITS) /* size of ring */ 47 #define RINGMASK (RINGSIZE-1) 48 49 #define RING_INIT(qsp) ((qsp)->qcn_rput = (qsp)->qcn_rget = 0) 50 #define RING_CNT(qsp) (((qsp)->qcn_rput - (qsp)->qcn_rget) & RINGMASK) 51 #define RING_POK(qsp, n) ((int)RING_CNT(qsp) < (int)(RINGSIZE-(n))) 52 #define RING_PUT(qsp, c) \ 53 ((qsp)->qcn_ring[(qsp)->qcn_rput++ & RINGMASK] = (uchar_t)(c)) 54 #define RING_GET(qsp) ((qsp)->qcn_ring[(qsp)->qcn_rget++ & RINGMASK]) 55 #define RING_ADDR(qsp) (&((qsp)->qcn_ring[(qsp)->qcn_rget & RINGMASK])) 56 #define RING_POFF(qsp) ((qsp)->qcn_rput & RINGMASK) 57 #define RING_GOFF(qsp) ((qsp)->qcn_rget & RINGMASK) 58 #define RING_LEFT(qsp) (RING_POFF(qsp) >= RING_GOFF(qsp) ? (RINGSIZE) - \ 59 RING_POFF(qsp) : RING_GOFF(qsp) - RING_POFF(qsp)) 60 61 #define RING_UPD(qsp, n) ((qsp)->qcn_rput += (n)) 62 63 /* 64 * qcn driver's soft state structure 65 */ 66 typedef struct qcn { 67 /* mutexes */ 68 kmutex_t qcn_hi_lock; /* protects qcn_t (soft state) */ 69 kmutex_t qcn_softlock; /* protects input handler */ 70 kmutex_t qcn_lock; /* protects output queue */ 71 72 /* stream queues */ 73 queue_t *qcn_writeq; /* stream write queue */ 74 queue_t *qcn_readq; /* stream read queue */ 75 76 /* dev info */ 77 dev_info_t *qcn_dip; /* dev_info */ 78 79 /* for handling IOCTL messages */ 80 bufcall_id_t qcn_wbufcid; /* for console ioctl */ 81 tty_common_t qcn_tty; /* for console ioctl */ 82 83 /* for console output timeout */ 84 time_t qcn_sc_active; /* last time (sec) SC was active */ 85 uint_t qcn_polling; 86 uchar_t qcn_rget; 87 uchar_t qcn_rput; 88 int qcn_soft_pend; 89 ddi_softint_handle_t qcn_softint_hdl; 90 uchar_t *qcn_ring; 91 ushort_t qcn_hangup; 92 ddi_intr_handle_t *qcn_htable; /* For array of interrupts */ 93 int qcn_intr_type; /* What type of interrupt */ 94 int qcn_intr_cnt; /* # of intrs count returned */ 95 size_t qcn_intr_size; /* Size of intr array */ 96 uint_t qcn_intr_pri; /* Interrupt priority */ 97 ddi_iblock_cookie_t qcn_soft_pri; 98 uint_t qcn_rbuf_overflow; 99 /* 100 * support for console read/write support 101 */ 102 int (*cons_transmit)(queue_t *, mblk_t *); 103 void (*cons_receive)(void); 104 char *cons_write_buffer; 105 uint64_t cons_write_buf_ra; 106 uint64_t cons_read_buf_ra; 107 } qcn_t; 108 109 /* Constants used by promif routines */ 110 #define QCN_CLNT_STR "CON_CLNT" 111 #define QCN_OBP_STR "CON_OBP" 112 113 /* alternate break sequence */ 114 extern void (*abort_seq_handler)(); 115 116 extern struct mod_ops mod_driverops; 117 118 #define QCN_TXINT_ENABLE 0x1 119 #define QCN_RXINT_ENABLE 0x2 120 121 /* 122 * API major/minor definitions for console 123 * read/write support. 124 */ 125 126 #define QCN_API_MAJOR 1 127 #define QCN_API_MINOR 1 128 129 /* 130 * The buffer size must be a power of 2 or contig_mem_alloc will fail 131 */ 132 #define CONS_WR_BUF_SIZE 64 133 134 #ifdef __cplusplus 135 } 136 #endif 137 138 #endif /* _QCN_H */ 139