sio.c revision 1.3.2.3
1 1.3.2.3 yamt /* $NetBSD: sio.c,v 1.3.2.3 2014/05/22 11:39:55 yamt Exp $ */ 2 1.3.2.2 yamt 3 1.3.2.2 yamt /* 4 1.3.2.2 yamt * Copyright (c) 1992 OMRON Corporation. 5 1.3.2.2 yamt * 6 1.3.2.2 yamt * This code is derived from software contributed to Berkeley by 7 1.3.2.2 yamt * OMRON Corporation. 8 1.3.2.2 yamt * 9 1.3.2.2 yamt * Redistribution and use in source and binary forms, with or without 10 1.3.2.2 yamt * modification, are permitted provided that the following conditions 11 1.3.2.2 yamt * are met: 12 1.3.2.2 yamt * 1. Redistributions of source code must retain the above copyright 13 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer. 14 1.3.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 15 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer in the 16 1.3.2.2 yamt * documentation and/or other materials provided with the distribution. 17 1.3.2.2 yamt * 3. All advertising materials mentioning features or use of this software 18 1.3.2.2 yamt * must display the following acknowledgement: 19 1.3.2.2 yamt * This product includes software developed by the University of 20 1.3.2.2 yamt * California, Berkeley and its contributors. 21 1.3.2.2 yamt * 4. Neither the name of the University nor the names of its contributors 22 1.3.2.2 yamt * may be used to endorse or promote products derived from this software 23 1.3.2.2 yamt * without specific prior written permission. 24 1.3.2.2 yamt * 25 1.3.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 1.3.2.2 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 1.3.2.2 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 1.3.2.2 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 1.3.2.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 1.3.2.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 1.3.2.2 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 1.3.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 1.3.2.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 1.3.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 1.3.2.2 yamt * SUCH DAMAGE. 36 1.3.2.2 yamt * 37 1.3.2.2 yamt * @(#)sio.c 8.1 (Berkeley) 6/10/93 38 1.3.2.2 yamt */ 39 1.3.2.2 yamt /* 40 1.3.2.2 yamt * Copyright (c) 1992, 1993 41 1.3.2.2 yamt * The Regents of the University of California. All rights reserved. 42 1.3.2.2 yamt * 43 1.3.2.2 yamt * This code is derived from software contributed to Berkeley by 44 1.3.2.2 yamt * OMRON Corporation. 45 1.3.2.2 yamt * 46 1.3.2.2 yamt * Redistribution and use in source and binary forms, with or without 47 1.3.2.2 yamt * modification, are permitted provided that the following conditions 48 1.3.2.2 yamt * are met: 49 1.3.2.2 yamt * 1. Redistributions of source code must retain the above copyright 50 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer. 51 1.3.2.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 52 1.3.2.2 yamt * notice, this list of conditions and the following disclaimer in the 53 1.3.2.2 yamt * documentation and/or other materials provided with the distribution. 54 1.3.2.2 yamt * 3. Neither the name of the University nor the names of its contributors 55 1.3.2.2 yamt * may be used to endorse or promote products derived from this software 56 1.3.2.2 yamt * without specific prior written permission. 57 1.3.2.2 yamt * 58 1.3.2.2 yamt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 1.3.2.2 yamt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 1.3.2.2 yamt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 1.3.2.2 yamt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 1.3.2.2 yamt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 1.3.2.2 yamt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 1.3.2.2 yamt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 1.3.2.2 yamt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 1.3.2.2 yamt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 1.3.2.2 yamt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 1.3.2.2 yamt * SUCH DAMAGE. 69 1.3.2.2 yamt * 70 1.3.2.2 yamt * @(#)sio.c 8.1 (Berkeley) 6/10/93 71 1.3.2.2 yamt */ 72 1.3.2.2 yamt 73 1.3.2.2 yamt /* sio.c NOV-25-1991 */ 74 1.3.2.2 yamt 75 1.3.2.2 yamt #define NSIO 2 76 1.3.2.2 yamt 77 1.3.2.2 yamt #include <sys/param.h> 78 1.3.2.2 yamt #include <luna68k/stand/boot/samachdep.h> 79 1.3.2.2 yamt #include <luna68k/stand/boot/sioreg.h> 80 1.3.2.2 yamt #include <luna68k/stand/boot/rcvbuf.h> 81 1.3.2.2 yamt #include <luna68k/stand/boot/kbdreg.h> 82 1.3.2.2 yamt 83 1.3.2.2 yamt static void siointr(int); 84 1.3.2.2 yamt static int sioreg(int, int); 85 1.3.2.2 yamt 86 1.3.2.2 yamt struct rcvbuf rcvbuf[NSIO]; 87 1.3.2.2 yamt 88 1.3.2.2 yamt int sioconsole = -1; 89 1.3.2.2 yamt struct siodevice *sio_addr[2]; 90 1.3.2.2 yamt 91 1.3.2.2 yamt void 92 1.3.2.2 yamt _siointr(void) 93 1.3.2.2 yamt { 94 1.3.2.2 yamt int unit; 95 1.3.2.2 yamt 96 1.3.2.2 yamt for (unit = 0; unit < NSIO; unit++) 97 1.3.2.2 yamt siointr(unit); 98 1.3.2.2 yamt } 99 1.3.2.2 yamt 100 1.3.2.2 yamt void 101 1.3.2.2 yamt siointr(int unit) 102 1.3.2.2 yamt { 103 1.3.2.3 yamt #if 0 104 1.3.2.3 yamt struct siodevice *sio = sio_addr[unit]; 105 1.3.2.3 yamt #endif 106 1.3.2.2 yamt int rr0 = sioreg(REG(unit, RR0), 0); 107 1.3.2.2 yamt int rr1 = sioreg(REG(unit, RR1), 0); 108 1.3.2.2 yamt 109 1.3.2.2 yamt if (rr0 & RR0_RXAVAIL) { 110 1.3.2.2 yamt if (rr1 & RR1_FRAMING) 111 1.3.2.2 yamt return; 112 1.3.2.2 yamt 113 1.3.2.3 yamt if (rr1 & (RR1_PARITY | RR1_OVERRUN)) { 114 1.3.2.3 yamt /* Channel-A Error Reset */ 115 1.3.2.3 yamt sioreg(REG(unit, WR0), WR0_ERRRST); 116 1.3.2.3 yamt } 117 1.3.2.2 yamt 118 1.3.2.2 yamt if (unit == 1) { 119 1.3.2.2 yamt int c = kbd_decode(sio_addr[unit]->sio_data); 120 1.3.2.2 yamt 121 1.3.2.2 yamt if ((c & KC_TYPE) == KC_CODE) 122 1.3.2.2 yamt PUSH_RBUF(unit, c); 123 1.3.2.2 yamt } else { 124 1.3.2.2 yamt PUSH_RBUF(unit, sio_addr[unit]->sio_data); 125 1.3.2.2 yamt } 126 1.3.2.2 yamt } 127 1.3.2.2 yamt } 128 1.3.2.2 yamt 129 1.3.2.2 yamt /* 130 1.3.2.2 yamt * Following are all routines needed for SIO to act as console 131 1.3.2.2 yamt */ 132 1.3.2.2 yamt #include <dev/cons.h> 133 1.3.2.2 yamt #include <luna68k/stand/boot/romvec.h> 134 1.3.2.2 yamt 135 1.3.2.2 yamt void 136 1.3.2.2 yamt siocnprobe(struct consdev *cp) 137 1.3.2.2 yamt { 138 1.3.2.3 yamt sio_addr[0] = (struct siodevice *)0x51000000; 139 1.3.2.3 yamt sio_addr[1] = (struct siodevice *)0x51000004; 140 1.3.2.2 yamt 141 1.3.2.2 yamt /* make sure hardware exists */ 142 1.3.2.2 yamt if (badaddr((short *)sio_addr[0])) { 143 1.3.2.2 yamt cp->cn_pri = CN_DEAD; 144 1.3.2.2 yamt return; 145 1.3.2.2 yamt } 146 1.3.2.2 yamt 147 1.3.2.2 yamt /* locate the major number */ 148 1.3.2.2 yamt 149 1.3.2.2 yamt /* initialize required fields */ 150 1.3.2.3 yamt cp->cn_dev = 0; 151 1.3.2.2 yamt cp->cn_pri = CN_NORMAL; 152 1.3.2.2 yamt } 153 1.3.2.2 yamt 154 1.3.2.2 yamt void 155 1.3.2.2 yamt siocninit(struct consdev *cp) 156 1.3.2.2 yamt { 157 1.3.2.3 yamt int unit = cp->cn_dev; 158 1.3.2.2 yamt 159 1.3.2.2 yamt sioinit(); 160 1.3.2.2 yamt sioconsole = unit; 161 1.3.2.2 yamt } 162 1.3.2.2 yamt 163 1.3.2.2 yamt int 164 1.3.2.2 yamt siocngetc(dev_t dev) 165 1.3.2.2 yamt { 166 1.3.2.3 yamt int c, unit = dev; 167 1.3.2.2 yamt 168 1.3.2.2 yamt if (RBUF_EMPTY(unit)) 169 1.3.2.2 yamt return 0; 170 1.3.2.2 yamt 171 1.3.2.2 yamt POP_RBUF(unit, c); 172 1.3.2.2 yamt 173 1.3.2.3 yamt return c; 174 1.3.2.2 yamt } 175 1.3.2.2 yamt 176 1.3.2.2 yamt void 177 1.3.2.2 yamt siocnputc(dev_t dev, int c) 178 1.3.2.2 yamt { 179 1.3.2.3 yamt int unit = dev; 180 1.3.2.2 yamt int s; 181 1.3.2.2 yamt 182 1.3.2.2 yamt if (sioconsole == -1) { 183 1.3.2.3 yamt (void)sioinit(); 184 1.3.2.2 yamt sioconsole = unit; 185 1.3.2.2 yamt } 186 1.3.2.2 yamt 187 1.3.2.2 yamt s = splsio(); 188 1.3.2.2 yamt 189 1.3.2.2 yamt /* wait for any pending transmission to finish */ 190 1.3.2.3 yamt while ((sioreg(REG(unit, RR0), 0) & RR0_TXEMPTY) == 0) 191 1.3.2.3 yamt continue; 192 1.3.2.2 yamt 193 1.3.2.2 yamt sio_addr[unit]->sio_data = (c & 0xFF); 194 1.3.2.2 yamt 195 1.3.2.2 yamt /* wait for any pending transmission to finish */ 196 1.3.2.3 yamt while ((sioreg(REG(unit, RR0), 0) & RR0_TXEMPTY) == 0) 197 1.3.2.3 yamt continue; 198 1.3.2.2 yamt 199 1.3.2.2 yamt splx(s); 200 1.3.2.2 yamt } 201 1.3.2.2 yamt 202 1.3.2.2 yamt /* SIO misc routines */ 203 1.3.2.2 yamt 204 1.3.2.2 yamt void 205 1.3.2.2 yamt sioinit(void) 206 1.3.2.2 yamt { 207 1.3.2.2 yamt int s; 208 1.3.2.2 yamt 209 1.3.2.2 yamt RBUF_INIT(0); 210 1.3.2.2 yamt RBUF_INIT(1); 211 1.3.2.2 yamt 212 1.3.2.2 yamt s = splsio(); 213 1.3.2.2 yamt 214 1.3.2.3 yamt /* Channel-A Reset */ 215 1.3.2.3 yamt sioreg(REG(0, WR0), WR0_CHANRST); 216 1.3.2.2 yamt 217 1.3.2.3 yamt /* Set CPU BUS Interface Mode */ 218 1.3.2.3 yamt sioreg(WR2A, WR2_VEC86 | WR2_INTR_1); 219 1.3.2.3 yamt /* Set Interrupt Vector */ 220 1.3.2.3 yamt sioreg(WR2B, 0); 221 1.3.2.3 yamt 222 1.3.2.3 yamt /* Reset E/S Interrupt */ 223 1.3.2.3 yamt sioreg(REG(0, WR0), WR0_RSTINT); 224 1.3.2.3 yamt /* Tx/Rx */ 225 1.3.2.3 yamt sioreg(REG(0, WR4), WR4_BAUD96 | WR4_STOP1 | WR4_NPARITY); 226 1.3.2.3 yamt /* Rx */ 227 1.3.2.3 yamt sioreg(REG(0, WR3), WR3_RX8BIT | WR3_RXENBL); 228 1.3.2.3 yamt /* Tx */ 229 1.3.2.3 yamt sioreg(REG(0, WR5), WR5_TX8BIT | WR5_TXENBL | WR5_DTR | WR5_RTS); 230 1.3.2.3 yamt /* Reset E/S Interrupt */ 231 1.3.2.3 yamt sioreg(REG(0, WR0), WR0_RSTINT); 232 1.3.2.3 yamt /* Interrupted All Char. */ 233 1.3.2.3 yamt sioreg(REG(0, WR1), WR1_RXALLS); 234 1.3.2.3 yamt 235 1.3.2.3 yamt /* Channel-A Reset */ 236 1.3.2.3 yamt sioreg(REG(1, WR0), WR0_CHANRST); 237 1.3.2.3 yamt 238 1.3.2.3 yamt /* Reset E/S Interrupt */ 239 1.3.2.3 yamt sioreg(REG(1, WR0), WR0_RSTINT); 240 1.3.2.3 yamt /* Tx/Rx */ 241 1.3.2.3 yamt sioreg(REG(1, WR4), WR4_BAUD96 | WR4_STOP1 | WR4_NPARITY); 242 1.3.2.3 yamt /* Rx */ 243 1.3.2.3 yamt sioreg(REG(1, WR3), WR3_RX8BIT | WR3_RXENBL); 244 1.3.2.3 yamt /* Tx */ 245 1.3.2.3 yamt sioreg(REG(1, WR5), WR5_TX8BIT | WR5_TXENBL); 246 1.3.2.3 yamt /* Reset E/S Interrupt */ 247 1.3.2.3 yamt sioreg(REG(1, WR0), WR0_RSTINT); 248 1.3.2.3 yamt /* Interrupted All Char. */ 249 1.3.2.3 yamt sioreg(REG(1, WR1), WR1_RXALLS); 250 1.3.2.2 yamt 251 1.3.2.2 yamt splx(s); 252 1.3.2.2 yamt } 253 1.3.2.2 yamt 254 1.3.2.2 yamt int 255 1.3.2.2 yamt sioreg(int reg, int val) 256 1.3.2.2 yamt { 257 1.3.2.2 yamt int chan; 258 1.3.2.2 yamt 259 1.3.2.2 yamt chan = CHANNEL(reg); 260 1.3.2.2 yamt 261 1.3.2.2 yamt if (isStatusReg(reg)) { 262 1.3.2.2 yamt if (REGNO(reg) != 0) 263 1.3.2.3 yamt sio_addr[chan]->sio_cmd = REGNO(reg); 264 1.3.2.3 yamt return sio_addr[chan]->sio_stat; 265 1.3.2.2 yamt } else { 266 1.3.2.2 yamt if (REGNO(reg) != 0) 267 1.3.2.3 yamt sio_addr[chan]->sio_cmd = REGNO(reg); 268 1.3.2.2 yamt sio_addr[chan]->sio_cmd = val; 269 1.3.2.3 yamt return val; 270 1.3.2.2 yamt } 271 1.3.2.2 yamt } 272
Indexes created Wed Oct 01 15:09:59 GMT 2025