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1/* $OpenBSD: comvar.h,v 1.61 2024/05/29 00:48:15 jsg Exp $ */
2/* $NetBSD: comvar.h,v 1.5 1996/05/05 19:50:47 christos Exp $ */
3
4/*
5 * Copyright (c) 1997 - 1998, Jason Downs. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28/*
29 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
30 *
31 * Redistribution and use in source and binary forms, with or without
32 * modification, are permitted provided that the following conditions
33 * are met:
34 * 1. Redistributions of source code must retain the above copyright
35 * notice, this list of conditions and the following disclaimer.
36 * 2. Redistributions in binary form must reproduce the above copyright
37 * notice, this list of conditions and the following disclaimer in the
38 * documentation and/or other materials provided with the distribution.
39 * 3. All advertising materials mentioning features or use of this software
40 * must display the following acknowledgement:
41 * This product includes software developed by Christopher G. Demetriou
42 * for the NetBSD Project.
43 * 4. The name of the author may not be used to endorse or promote products
44 * derived from this software without specific prior written permission
45 *
46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
47 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
48 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
49 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
50 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
51 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
52 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
53 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
54 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
55 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
56 */
57
58#include <sys/timeout.h>
59
60struct commulti_attach_args {
61 int ca_slave; /* slave number */
62
63 bus_space_tag_t ca_iot;
64 bus_space_handle_t ca_ioh;
65 int ca_iobase;
66 int ca_noien;
67};
68
69#define COM_IBUFSIZE (32 * 512)
70#define COM_IHIGHWATER ((3 * COM_IBUFSIZE) / 4)
71
72struct com_softc {
73 struct device sc_dev;
74 void *sc_ih;
75 bus_space_tag_t sc_iot;
76 struct tty *sc_tty;
77 struct timeout sc_dtr_tmo;
78 struct timeout sc_diag_tmo;
79 void *sc_si;
80
81 int sc_overflows;
82 int sc_floods;
83 int sc_errors;
84
85 int sc_halt;
86
87 bus_addr_t sc_iobase;
88 int sc_frequency;
89
90 bus_space_handle_t sc_ioh;
91 u_char sc_reg_width;
92 u_char sc_reg_shift;
93
94 u_char sc_uarttype;
95#define COM_UART_UNKNOWN 0x00 /* unknown */
96#define COM_UART_8250 0x01 /* no fifo */
97#define COM_UART_16450 0x02 /* no fifo */
98#define COM_UART_16550 0x03 /* no working fifo */
99#define COM_UART_16550A 0x04 /* 16 byte fifo */
100#define COM_UART_ST16650 0x05 /* no working fifo */
101#define COM_UART_ST16650V2 0x06 /* 32 byte fifo */
102#define COM_UART_TI16750 0x07 /* 64 byte fifo */
103#define COM_UART_ST16C654 0x08 /* 64 bytes fifo */
104#define COM_UART_XR16850 0x10 /* 128 byte fifo */
105#define COM_UART_OX16C950 0x11 /* 128 byte fifo */
106#define COM_UART_XR17V35X 0x12 /* 256 byte fifo */
107#define COM_UART_DW_APB 0x13 /* configurable */
108
109 u_char sc_hwflags;
110#define COM_HW_NOIEN 0x01
111#define COM_HW_FIFO 0x02
112#define COM_HW_SIR 0x20
113#define COM_HW_CONSOLE 0x40
114 u_char sc_swflags;
115#define COM_SW_SOFTCAR 0x01
116#define COM_SW_CLOCAL 0x02
117#define COM_SW_CRTSCTS 0x04
118#define COM_SW_MDMBUF 0x08
119#define COM_SW_PPS 0x10
120#define COM_SW_DEAD 0x20
121 int sc_fifolen;
122 u_char sc_msr, sc_mcr, sc_lcr, sc_ier;
123 u_char sc_dtr;
124
125 u_char sc_cua;
126
127 u_char sc_initialize; /* force initialization */
128
129 u_char *sc_ibuf, *sc_ibufp, *sc_ibufhigh, *sc_ibufend;
130 u_char sc_ibufs[2][COM_IBUFSIZE];
131
132 /* power management hooks */
133 int (*enable)(struct com_softc *);
134 void (*disable)(struct com_softc *);
135 int enabled;
136};
137
138uint8_t com_read_reg(struct com_softc *, bus_size_t);
139void com_write_reg(struct com_softc *, bus_size_t, uint8_t);
140
141int comprobe1(bus_space_tag_t, bus_space_handle_t);
142int comstop(struct tty *, int);
143int comintr(void *);
144int com_detach(struct device *, int);
145int com_activate(struct device *, int);
146void com_resume(struct com_softc *);
147
148void comdiag(void *);
149int comspeed(long, long);
150int comparam(struct tty *, struct termios *);
151void comstart(struct tty *);
152void comsoft(void *);
153
154uint8_t comcn_read_reg(bus_size_t);
155void comcn_write_reg(bus_size_t, uint8_t);
156
157struct consdev;
158int comcnattach(bus_space_tag_t, bus_addr_t, int, int, tcflag_t);
159void comcnprobe(struct consdev *);
160void comcninit(struct consdev *);
161int comcngetc(dev_t);
162void comcnputc(dev_t, int);
163void comcnpollc(dev_t, int);
164void com_raisedtr(void *);
165
166void com_attach_subr(struct com_softc *);
167
168extern int comdefaultrate;
169extern int comconsrate;
170extern int comconsfreq;
171extern bus_addr_t comconsaddr;
172extern int comconsattached;
173extern bus_space_tag_t comconsiot;
174extern bus_space_handle_t comconsioh;
175extern int comconsunit;
176extern tcflag_t comconscflag;
177extern u_char comcons_reg_width;
178extern u_char comcons_reg_shift;