z8530sc.h revision 1.19
1 /* $NetBSD: z8530sc.h,v 1.19 2003/08/07 16:31:04 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)zsvar.h 8.1 (Berkeley) 6/11/93 41 */ 42 43 /* 44 * Copyright (c) 1994 Gordon W. Ross 45 * 46 * This software was developed by the Computer Systems Engineering group 47 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 48 * contributed to Berkeley. 49 * 50 * All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by the University of 53 * California, Lawrence Berkeley Laboratory. 54 * 55 * Redistribution and use in source and binary forms, with or without 56 * modification, are permitted provided that the following conditions 57 * are met: 58 * 1. Redistributions of source code must retain the above copyright 59 * notice, this list of conditions and the following disclaimer. 60 * 2. Redistributions in binary form must reproduce the above copyright 61 * notice, this list of conditions and the following disclaimer in the 62 * documentation and/or other materials provided with the distribution. 63 * 3. All advertising materials mentioning features or use of this software 64 * must display the following acknowledgement: 65 * This product includes software developed by the University of 66 * California, Berkeley and its contributors. 67 * 4. Neither the name of the University nor the names of its contributors 68 * may be used to endorse or promote products derived from this software 69 * without specific prior written permission. 70 * 71 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 72 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 73 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 74 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 75 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 76 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 77 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 78 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 79 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 80 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 81 * SUCH DAMAGE. 82 * 83 * @(#)zsvar.h 8.1 (Berkeley) 6/11/93 84 */ 85 86 87 /* 88 * Function vector - per channel 89 */ 90 struct zs_chanstate; 91 struct zsops { 92 void (*zsop_rxint) __P((struct zs_chanstate *)); 93 /* receive char available */ 94 void (*zsop_stint) __P((struct zs_chanstate *, int)); 95 /* external/status */ 96 void (*zsop_txint) __P((struct zs_chanstate *)); 97 /* xmit buffer empty */ 98 void (*zsop_softint) __P((struct zs_chanstate *)); 99 /* process software interrupt */ 100 }; 101 102 extern struct zsops zsops_null; 103 104 105 /* 106 * Software state, per zs channel. 107 */ 108 struct zs_chanstate { 109 110 /* Pointers to the device registers. */ 111 volatile u_char *cs_reg_csr; /* ctrl, status, and reg. number. */ 112 volatile u_char *cs_reg_data; /* data or numbered register */ 113 114 int cs_channel; /* sub-unit number */ 115 void *cs_private; /* sub-driver data pointer */ 116 struct zsops *cs_ops; 117 118 struct simplelock cs_lock; /* per channel lock */ 119 120 int cs_brg_clk; /* BAUD Rate Generator clock 121 * (usually PCLK / 16) */ 122 int cs_defspeed; /* default baud rate */ 123 int cs_defcflag; /* default cflag */ 124 125 /* 126 * We must keep a copy of the write registers as they are 127 * mostly write-only and we sometimes need to set and clear 128 * individual bits (e.g., in WR3). Not all of these are 129 * needed but 16 bytes is cheap and this makes the addressing 130 * simpler. Unfortunately, we can only write to some registers 131 * when the chip is not actually transmitting, so whenever 132 * we are expecting a `transmit done' interrupt the preg array 133 * is allowed to `get ahead' of the current values. In a 134 * few places we must change the current value of a register, 135 * rather than (or in addition to) the pending value; for these 136 * cs_creg[] contains the current value. 137 */ 138 u_char cs_creg[16]; /* current values */ 139 u_char cs_preg[16]; /* pending values */ 140 int cs_heldchange; /* change pending (creg != preg) */ 141 142 u_char cs_rr0; /* last rr0 processed */ 143 u_char cs_rr0_delta; /* rr0 changes at status intr. */ 144 u_char cs_rr0_mask; /* rr0 bits that stop output */ 145 u_char cs_rr0_dcd; /* which bit to read as DCD */ 146 u_char cs_rr0_cts; /* which bit to read as CTS */ 147 u_char cs_rr0_pps; /* which bit to use for PPS */ 148 /* the above is set only while CRTSCTS is enabled. */ 149 150 u_char cs_wr5_dtr; /* which bit to write as DTR */ 151 u_char cs_wr5_rts; /* which bit to write as RTS */ 152 /* the above is set only while CRTSCTS is enabled. */ 153 154 char cs_softreq; /* need soft interrupt call */ 155 char cs_spare1; /* (for skippy :) */ 156 157 /* 158 * For strange systems that have oddly wired serial ports, we 159 * provide a pointer to the channel state of the port that has 160 * our status lines on it. 161 */ 162 struct zs_chanstate *cs_ctl_chan; 163 164 /* power management hooks */ 165 int (*enable) __P((struct zs_chanstate *)); 166 void (*disable) __P((struct zs_chanstate *)); 167 int enabled; 168 169 /* MD code might define a larger variant of this. */ 170 }; 171 172 struct consdev; 173 struct zsc_attach_args { 174 int channel; /* two serial channels per zsc */ 175 int hwflags; /* see definitions below */ 176 /* `consdev' is only valid if ZS_HWFLAG_USE_CONSDEV is set */ 177 struct consdev *consdev; 178 }; 179 /* In case of split console devices, use these: */ 180 #define ZS_HWFLAG_CONSOLE_INPUT 1 181 #define ZS_HWFLAG_CONSOLE_OUTPUT 2 182 #define ZS_HWFLAG_CONSOLE \ 183 (ZS_HWFLAG_CONSOLE_INPUT | ZS_HWFLAG_CONSOLE_OUTPUT) 184 #define ZS_HWFLAG_NO_DCD 4 /* Ignore the DCD bit */ 185 #define ZS_HWFLAG_NO_CTS 8 /* Ignore the CTS bit */ 186 #define ZS_HWFLAG_RAW 16 /* advise raw mode */ 187 #define ZS_HWFLAG_USE_CONSDEV 32 /* Use console ops from `consdev' */ 188 #define ZS_HWFLAG_NORESET 64 /* Don't reset at attach time */ 189 190 int zsc_intr_soft __P((void *)); 191 int zsc_intr_hard __P((void *)); 192 193 void zs_abort __P((struct zs_chanstate *)); 194 void zs_break __P((struct zs_chanstate *, int)); 195 void zs_iflush __P((struct zs_chanstate *)); 196 void zs_loadchannelregs __P((struct zs_chanstate *)); 197 int zs_set_speed __P((struct zs_chanstate *, int)); 198 int zs_set_modes __P((struct zs_chanstate *, int)); 199 200 int zs_check_kgdb __P((struct zs_chanstate *, int)); 201 202
Indexes created Tue Sep 30 11:09:46 GMT 2025