Annotation of sys/arch/hp300/dev/apci_subr.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: apci_subr.c,v 1.1 2005/04/22 11:59:11 miod Exp $ */
2:
3: /*-
4: * Copyright (c) 1996, 1997, 1999 The NetBSD Foundation, Inc.
5: * All rights reserved.
6: *
7: * This code is derived from software contributed to The NetBSD Foundation
8: * by Jason R. Thorpe.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the NetBSD
21: * Foundation, Inc. and its contributors.
22: * 4. Neither the name of The NetBSD Foundation nor the names of its
23: * contributors may be used to endorse or promote products derived
24: * from this software without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36: * POSSIBILITY OF SUCH DAMAGE.
37: */
38:
39: /*
40: * Copyright (c) 1997 Michael Smith. All rights reserved.
41: * Copyright (c) 1982, 1986, 1990, 1993
42: * The Regents of the University of California. All rights reserved.
43: *
44: * Redistribution and use in source and binary forms, with or without
45: * modification, are permitted provided that the following conditions
46: * are met:
47: * 1. Redistributions of source code must retain the above copyright
48: * notice, this list of conditions and the following disclaimer.
49: * 2. Redistributions in binary form must reproduce the above copyright
50: * notice, this list of conditions and the following disclaimer in the
51: * documentation and/or other materials provided with the distribution.
52: * 3. Neither the name of the University nor the names of its contributors
53: * may be used to endorse or promote products derived from this software
54: * without specific prior written permission.
55: *
56: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
57: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
58: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
59: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
60: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
61: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
62: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
63: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
64: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
65: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
66: * SUCH DAMAGE.
67: *
68: * @(#)dca.c 8.2 (Berkeley) 1/12/94
69: */
70:
71: /*
72: * Routines shared by the apci and dnkbd drivers.
73: */
74:
75: #include <sys/param.h>
76: #include <sys/systm.h>
77: #include <sys/tty.h>
78: #include <sys/kernel.h>
79:
80: #include <hp300/dev/apcireg.h>
81: #include <hp300/dev/apcivar.h>
82: #include <hp300/dev/dcareg.h>
83:
84: const struct speedtab apcispeedtab[] = {
85: { 0, 0 },
86: { 50, APCIBRD(50) },
87: { 75, APCIBRD(75) },
88: { 110, APCIBRD(110) },
89: { 134, APCIBRD(134) },
90: { 150, APCIBRD(150) },
91: { 200, APCIBRD(200) },
92: { 300, APCIBRD(300) },
93: { 600, APCIBRD(600) },
94: { 1200, APCIBRD(1200) },
95: { 1800, APCIBRD(1800) },
96: { 2400, APCIBRD(2400) },
97: { 4800, APCIBRD(4800) },
98: { 9600, APCIBRD(9600) },
99: { 19200, APCIBRD(19200) },
100: { 38400, APCIBRD(38400) },
101: { -1, -1 },
102: };
103:
104: int
105: apciinit(struct apciregs *apci, u_int16_t rate, u_int16_t cfcr)
106: {
107: int s, stat;
108:
109: s = splhigh();
110:
111: rate = ttspeedtab(rate, apcispeedtab);
112:
113: apci->ap_cfcr = CFCR_DLAB;
114: apci->ap_data = rate & 0xff;
115: apci->ap_ier = (rate >> 8) & 0xff;
116: apci->ap_cfcr = cfcr;
117: apci->ap_ier = IER_ERXRDY | IER_ETXRDY;
118: apci->ap_fifo =
119: FIFO_ENABLE | FIFO_RCV_RST | FIFO_XMT_RST | FIFO_TRIGGER_1;
120: apci->ap_mcr = MCR_DTR | MCR_RTS;
121: delay(100);
122: stat = apci->ap_iir;
123: splx(s);
124:
125: return (stat);
126: }
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