comvar.h revision 1.36
1 /* $NetBSD: comvar.h,v 1.36 2000/09/23 17:17:12 sommerfeld Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Christopher G. Demetriou 17 * for the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include "rnd.h" 34 #if NRND > 0 && defined(RND_COM) 35 #include <sys/rnd.h> 36 #endif 37 38 #include <sys/callout.h> 39 #include <sys/timepps.h> 40 #if (defined(MULTIPROCESSOR) || defined(LOCKDEBUG)) && defined(COM_MPLOCK) 41 #include <sys/lock.h> 42 #endif 43 44 int comcnattach __P((bus_space_tag_t, bus_addr_t, int, int, tcflag_t)); 45 46 #ifdef KGDB 47 int com_kgdb_attach __P((bus_space_tag_t, int, int, int, tcflag_t)); 48 #endif 49 50 int com_is_console __P((bus_space_tag_t, bus_addr_t, bus_space_handle_t *)); 51 52 /* Hardware flag masks */ 53 #define COM_HW_NOIEN 0x01 54 #define COM_HW_FIFO 0x02 55 #define COM_HW_HAYESP 0x04 56 #define COM_HW_FLOW 0x08 57 #define COM_HW_DEV_OK 0x20 58 #define COM_HW_CONSOLE 0x40 59 #define COM_HW_KGDB 0x80 60 #define COM_HW_TXFIFO_DISABLE 0x100 61 62 /* Buffer size for character buffer */ 63 #define COM_RING_SIZE 2048 64 65 struct com_softc { 66 struct device sc_dev; 67 void *sc_si; 68 struct tty *sc_tty; 69 70 struct callout sc_diag_callout; 71 72 bus_addr_t sc_iobase; /* XXX ISA-centric name */ 73 int sc_frequency; 74 75 bus_space_tag_t sc_iot; 76 bus_space_handle_t sc_ioh; 77 bus_space_handle_t sc_hayespioh; 78 79 u_int sc_overflows, 80 sc_floods, 81 sc_errors; 82 83 int sc_hwflags, 84 sc_swflags; 85 u_int sc_fifolen; 86 87 u_int sc_r_hiwat, 88 sc_r_lowat; 89 u_char *volatile sc_rbget, 90 *volatile sc_rbput; 91 volatile u_int sc_rbavail; 92 u_char *sc_rbuf, 93 *sc_ebuf; 94 95 u_char *sc_tba; 96 u_int sc_tbc, 97 sc_heldtbc; 98 99 volatile u_char sc_rx_flags, 100 #define RX_TTY_BLOCKED 0x01 101 #define RX_TTY_OVERFLOWED 0x02 102 #define RX_IBUF_BLOCKED 0x04 103 #define RX_IBUF_OVERFLOWED 0x08 104 #define RX_ANY_BLOCK 0x0f 105 sc_tx_busy, 106 sc_tx_done, 107 sc_tx_stopped, 108 sc_st_check, 109 sc_rx_ready; 110 111 volatile u_char sc_heldchange; 112 volatile u_char sc_msr, sc_msr_delta, sc_msr_mask, sc_mcr, 113 sc_mcr_active, sc_lcr, sc_ier, sc_fifo, sc_dlbl, sc_dlbh, sc_efr; 114 u_char sc_mcr_dtr, sc_mcr_rts, sc_msr_cts, sc_msr_dcd; 115 116 /* power management hooks */ 117 int (*enable) __P((struct com_softc *)); 118 void (*disable) __P((struct com_softc *)); 119 int enabled; 120 121 /* PPS signal on DCD, with or without inkernel clock disciplining */ 122 u_char sc_ppsmask; /* pps signal mask */ 123 u_char sc_ppsassert; /* pps leading edge */ 124 u_char sc_ppsclear; /* pps trailing edge */ 125 pps_info_t ppsinfo; 126 pps_params_t ppsparam; 127 128 #if NRND > 0 && defined(RND_COM) 129 rndsource_element_t rnd_source; 130 #endif 131 #if (defined(MULTIPROCESSOR) || defined(LOCKDEBUG)) && defined(COM_MPLOCK) 132 struct simplelock sc_lock; 133 #endif 134 }; 135 136 /* Macros to clear/set/test flags. */ 137 #define SET(t, f) (t) |= (f) 138 #define CLR(t, f) (t) &= ~(f) 139 #define ISSET(t, f) ((t) & (f)) 140 141 int comprobe1 __P((bus_space_tag_t, bus_space_handle_t)); 142 int comintr __P((void *)); 143 void com_attach_subr __P((struct com_softc *)); 144 int cominit __P((bus_space_tag_t, bus_addr_t, int, int, tcflag_t, 145 bus_space_handle_t *)); 146 int com_detach __P((struct device *, int)); 147 int com_activate __P((struct device *, enum devact)); 148 149 #ifndef __GENERIC_SOFT_INTERRUPTS 150 #ifdef __NO_SOFT_SERIAL_INTERRUPT 151 #define IPL_SERIAL IPL_TTY 152 #define splserial() spltty() 153 #define IPL_SOFTSERIAL IPL_TTY 154 #define splsoftserial() spltty() 155 #endif 156 #endif 157
Indexes created Wed Sep 24 05:09:52 GMT 2025