clmpccvar.h revision 1.3
1 /* $NetBSD: clmpccvar.h,v 1.3 1999/08/01 09:35:05 scw Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Steve C. Woodford. 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 #ifndef __clmpccvar_h 40 #define __clmpccvar_h 41 42 43 /* Buffer size for character buffer */ 44 #define CLMPCC_RING_SIZE 512 45 46 /* How many channels per chip */ 47 #define CLMPCC_NUM_CHANS 4 48 49 /* Reasons for calling the MD code's iack hook function */ 50 #define CLMPCC_IACK_MODEM 0 51 #define CLMPCC_IACK_RX 1 52 #define CLMPCC_IACK_TX 2 53 54 55 struct clmpcc_softc; 56 57 /* 58 * Each channel is represented by one of the following structures 59 */ 60 struct clmpcc_chan { 61 struct tty *ch_tty; /* This channel's tty structure */ 62 struct clmpcc_softc *ch_sc; /* Pointer to chip's softc structure */ 63 u_char ch_car; /* Channel number (CD2400_REG_CAR) */ 64 u_char ch_openflags; /* Persistant TIOC flags */ 65 volatile u_short ch_flags; /* Various channel-specific flags */ 66 #define CLMPCC_FLG_IS_CONSOLE 0x0001 /* Channel is system console */ 67 #define CLMPCC_FLG_START_BREAK 0x0002 68 #define CLMPCC_FLG_END_BREAK 0x0004 69 #define CLMPCC_FLG_FIFO_CLEAR 0x0008 70 #define CLMPCC_FLG_UPDATE_PARMS 0x0010 71 #define CLMPCC_FLG_NEED_INIT 0x0020 72 73 u_char ch_tx_done; 74 75 u_char ch_control; 76 77 /* New port parameters wait here until written by the Tx ISR */ 78 u_char ch_tcor; 79 u_char ch_tbpr; 80 u_char ch_rcor; 81 u_char ch_rbpr; 82 u_char ch_cor1; 83 u_char ch_cor2; 84 u_char ch_cor3; 85 u_char ch_cor4; /* Current Rx Fifo threshold */ 86 u_char ch_cor5; 87 88 u_int8_t *ch_ibuf; /* Start of input ring buffer */ 89 u_int8_t *ch_ibuf_end; /* End of input ring buffer */ 90 u_int8_t *ch_ibuf_rd; /* Input buffer tail (reader) */ 91 u_int8_t *ch_ibuf_wr; /* Input buffer head (writer) */ 92 93 u_int8_t *ch_obuf_addr; /* Output buffer address */ 94 u_int ch_obuf_size; /* Output buffer size (in bytes) */ 95 }; 96 97 98 struct clmpcc_softc { 99 struct device sc_dev; 100 101 /* 102 * The bus/MD-specific attachment code must initialise the 103 * following fields before calling 'clmpcc_attach_subr()'. 104 */ 105 bus_space_tag_t sc_iot; /* Tag for parent bus */ 106 bus_space_handle_t sc_ioh; /* Handle for chip's regs */ 107 void *sc_data; /* MD-specific data */ 108 int sc_clk; /* Clock-rate, in Hz */ 109 u_char sc_vector_base; /* Vector base reg, or 0 for auto */ 110 u_char sc_rpilr; /* Receive Priority Interupt Level */ 111 u_char sc_tpilr; /* Transmit Priority Interupt Level */ 112 u_char sc_mpilr; /* Modem Priority Interupt Level */ 113 int sc_swaprtsdtr; /* Non-zero if RTS and DTR swapped */ 114 u_int sc_byteswap; /* One of the following ... */ 115 #define CLMPCC_BYTESWAP_LOW 0x00 /* *byteswap pin is low */ 116 #define CLMPCC_BYTESWAP_HIGH 0x03 /* *byteswap pin is high */ 117 118 /* Called to request a soft interrupt callback to clmpcc_softintr */ 119 void (*sc_softhook) __P((struct clmpcc_softc *)); 120 121 /* Called when an interrupt has to be acknowledged in polled mode. */ 122 void (*sc_iackhook) __P((struct clmpcc_softc *, int)); 123 124 /* 125 * No user-serviceable parts below 126 */ 127 volatile int sc_soft_running; 128 struct clmpcc_chan sc_chans[CLMPCC_NUM_CHANS]; 129 }; 130 131 extern void clmpcc_attach __P((struct clmpcc_softc *)); 132 extern int clmpcc_cnattach __P((struct clmpcc_softc *, int, int)); 133 extern int clmpcc_rxintr __P((void *)); 134 extern int clmpcc_txintr __P((void *)); 135 extern int clmpcc_mdintr __P((void *)); 136 extern int clmpcc_softintr __P((void *)); 137 138 #endif /* __clmpccvar_h */ 139
Indexes created Thu Sep 25 08:09:54 GMT 2025