comvar.h revision 1.14 1 1.14 drochner /* $NetBSD: comvar.h,v 1.14 1997/08/23 14:01:34 drochner Exp $ */
2 1.1 cgd
3 1.1 cgd /*
4 1.2 cgd * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
5 1.1 cgd *
6 1.1 cgd * Redistribution and use in source and binary forms, with or without
7 1.1 cgd * modification, are permitted provided that the following conditions
8 1.1 cgd * are met:
9 1.1 cgd * 1. Redistributions of source code must retain the above copyright
10 1.1 cgd * notice, this list of conditions and the following disclaimer.
11 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
12 1.1 cgd * notice, this list of conditions and the following disclaimer in the
13 1.1 cgd * documentation and/or other materials provided with the distribution.
14 1.1 cgd * 3. All advertising materials mentioning features or use of this software
15 1.1 cgd * must display the following acknowledgement:
16 1.1 cgd * This product includes software developed by Christopher G. Demetriou
17 1.1 cgd * for the NetBSD Project.
18 1.1 cgd * 4. The name of the author may not be used to endorse or promote products
19 1.1 cgd * derived from this software without specific prior written permission
20 1.1 cgd *
21 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 1.1 cgd * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 1.1 cgd * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 1.1 cgd * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 1.1 cgd * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 1.1 cgd * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 1.1 cgd * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 1.1 cgd * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 1.1 cgd * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 1.1 cgd * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 1.1 cgd */
32 1.1 cgd
33 1.14 drochner int comcnattach __P((bus_space_tag_t, int, int, tcflag_t));
34 1.12 drochner
35 1.12 drochner #ifdef KGDB
36 1.14 drochner int com_kgdb_attach __P((bus_space_tag_t, int, int, tcflag_t));
37 1.12 drochner #endif
38 1.8 mycroft
39 1.14 drochner int com_is_console __P((bus_space_tag_t, int, bus_space_handle_t *));
40 1.14 drochner
41 1.8 mycroft /* Hardware flag masks */
42 1.8 mycroft #define COM_HW_NOIEN 0x01
43 1.8 mycroft #define COM_HW_FIFO 0x02
44 1.8 mycroft #define COM_HW_HAYESP 0x04
45 1.8 mycroft #define COM_HW_CONSOLE 0x40
46 1.11 thorpej #define COM_HW_KGDB 0x80
47 1.8 mycroft
48 1.8 mycroft /* Buffer size for character buffer */
49 1.10 mycroft #define RXBUFSIZE 2048 /* More than enough.. */
50 1.10 mycroft #define RXBUFMASK (RXBUFSIZE - 1) /* Only iff previous is a power of 2 */
51 1.10 mycroft #define RXHIWAT ((RXBUFSIZE * 1) / 4)
52 1.10 mycroft #define RXLOWAT ((RXBUFSIZE * 3) / 4)
53 1.8 mycroft
54 1.8 mycroft struct com_softc {
55 1.8 mycroft struct device sc_dev;
56 1.8 mycroft void *sc_ih;
57 1.8 mycroft void *sc_si;
58 1.8 mycroft struct tty *sc_tty;
59 1.8 mycroft
60 1.8 mycroft int sc_overflows;
61 1.8 mycroft int sc_floods;
62 1.8 mycroft int sc_errors;
63 1.8 mycroft
64 1.8 mycroft int sc_iobase;
65 1.8 mycroft
66 1.8 mycroft bus_space_tag_t sc_iot;
67 1.8 mycroft bus_space_handle_t sc_ioh;
68 1.8 mycroft bus_space_handle_t sc_hayespioh;
69 1.8 mycroft
70 1.8 mycroft u_char sc_hwflags;
71 1.8 mycroft u_char sc_swflags;
72 1.8 mycroft int sc_fifolen;
73 1.3 cgd
74 1.8 mycroft u_char sc_msr, sc_msr_delta, sc_msr_mask, sc_mcr, sc_mcr_active, sc_lcr,
75 1.8 mycroft sc_ier, sc_fifo, sc_dlbl, sc_dlbh;
76 1.8 mycroft u_char sc_mcr_dtr, sc_mcr_rts, sc_msr_cts, sc_msr_dcd;
77 1.8 mycroft
78 1.8 mycroft int sc_r_hiwat;
79 1.10 mycroft int sc_r_lowat;
80 1.8 mycroft volatile u_int sc_rbget;
81 1.8 mycroft volatile u_int sc_rbput;
82 1.8 mycroft volatile u_int sc_rbavail;
83 1.8 mycroft u_char sc_rbuf[RXBUFSIZE];
84 1.8 mycroft u_char sc_lbuf[RXBUFSIZE];
85 1.8 mycroft
86 1.8 mycroft u_char *sc_tba;
87 1.8 mycroft int sc_tbc,
88 1.8 mycroft sc_heldtbc;
89 1.8 mycroft
90 1.10 mycroft volatile u_char sc_rx_flags,
91 1.10 mycroft #define RX_TTY_BLOCKED 0x01
92 1.10 mycroft #define RX_TTY_OVERFLOWED 0x02
93 1.10 mycroft #define RX_IBUF_BLOCKED 0x04
94 1.10 mycroft #define RX_IBUF_OVERFLOWED 0x08
95 1.10 mycroft #define RX_ANY_BLOCK 0x0f
96 1.8 mycroft sc_tx_busy,
97 1.8 mycroft sc_tx_done,
98 1.8 mycroft sc_tx_stopped,
99 1.8 mycroft sc_st_check,
100 1.8 mycroft sc_rx_ready;
101 1.8 mycroft
102 1.8 mycroft volatile u_char sc_heldchange;
103 1.1 cgd };
104 1.1 cgd
105 1.8 mycroft /* Macros to clear/set/test flags. */
106 1.8 mycroft #define SET(t, f) (t) |= (f)
107 1.8 mycroft #define CLR(t, f) (t) &= ~(f)
108 1.8 mycroft #define ISSET(t, f) ((t) & (f))
109 1.8 mycroft
110 1.6 thorpej int comprobe1 __P((bus_space_tag_t, bus_space_handle_t, int));
111 1.5 christos int comintr __P((void *));
112 1.8 mycroft void com_attach_subr __P((struct com_softc *));
113 1.14 drochner int cominit __P((bus_space_tag_t, int, int, tcflag_t, bus_space_handle_t *));
114 1.3 cgd
115 1.8 mycroft #ifndef __GENERIC_SOFT_INTERRUPTS
116 1.8 mycroft #ifdef alpha
117 1.8 mycroft #define IPL_SERIAL IPL_TTY
118 1.8 mycroft #define splserial() spltty()
119 1.8 mycroft #define IPL_SOFTSERIAL IPL_TTY
120 1.8 mycroft #define splsoftserial() spltty()
121 1.8 mycroft #endif
122 1.8 mycroft #endif
123