wss_isa.c revision 1.1
1 /* $NetBSD: wss_isa.c,v 1.1 1998/01/19 22:18:24 augustss Exp $ */ 2 3 /* 4 * Copyright (c) 1994 John Brezak 5 * Copyright (c) 1991-1993 Regents of the University of California. 6 * All rights reserved. 7 * 8 * MAD support: 9 * Copyright (c) 1996 Lennart Augustsson 10 * Based on code which is 11 * Copyright (c) 1994 Hannu Savolainen 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the Computer Systems 24 * Engineering Group at Lawrence Berkeley Laboratory. 25 * 4. Neither the name of the University nor of the Laboratory may be used 26 * to endorse or promote products derived from this software without 27 * specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 */ 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/errno.h> 45 #include <sys/ioctl.h> 46 #include <sys/syslog.h> 47 #include <sys/device.h> 48 #include <sys/proc.h> 49 #include <sys/buf.h> 50 51 #include <machine/cpu.h> 52 #include <machine/intr.h> 53 #include <machine/bus.h> 54 #include <machine/pio.h> 55 56 #include <sys/audioio.h> 57 #include <dev/audio_if.h> 58 59 #include <dev/isa/isavar.h> 60 #include <dev/isa/isadmavar.h> 61 62 #include <dev/ic/ad1848reg.h> 63 #include <dev/isa/ad1848var.h> 64 #include <dev/isa/wssreg.h> 65 #include <dev/isa/wssvar.h> 66 #include <dev/isa/madreg.h> 67 68 #ifdef AUDIO_DEBUG 69 #define DPRINTF(x) if (wssdebug) printf x 70 extern int wssdebug; 71 #else 72 #define DPRINTF(x) 73 #endif 74 75 static int wssfind __P((struct device *, struct wss_softc *, struct isa_attach_args *)); 76 77 static void madprobe __P((struct wss_softc *, int)); 78 static void madunmap __P((struct wss_softc *)); 79 static int detect_mad16 __P((struct wss_softc *, int)); 80 81 int wss_isa_probe __P((struct device *, void *, void *)); 82 void wss_isa_attach __P((struct device *, struct device *, void *)); 83 84 struct cfattach wss_isa_ca = { 85 sizeof(struct wss_softc), wss_isa_probe, wss_isa_attach 86 }; 87 88 /* 89 * Probe for the Microsoft Sound System hardware. 90 */ 91 int 92 wss_isa_probe(parent, match, aux) 93 struct device *parent; 94 #ifdef __BROKEN_INDIRECT_CONFIG 95 void *match; 96 #else 97 struct cfdata *match; 98 #endif 99 void *aux; 100 { 101 struct wss_softc probesc, *sc = &probesc; 102 103 bzero(sc, sizeof *sc); 104 #ifdef __BROKEN_INDIRECT_CONFIG 105 sc->sc_dev.dv_cfdata = ((struct device *)match)->dv_cfdata; 106 #else 107 sc->sc_dev.dv_cfdata = match; 108 #endif 109 if (wssfind(parent, sc, aux)) { 110 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC); 111 ad1848_unmap(&sc->sc_ad1848); 112 madunmap(sc); 113 return 1; 114 } else 115 /* Everything is already unmapped */ 116 return 0; 117 } 118 119 static int 120 wssfind(parent, sc, ia) 121 struct device *parent; 122 struct wss_softc *sc; 123 struct isa_attach_args *ia; 124 { 125 static u_char interrupt_bits[12] = { 126 -1, -1, -1, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20 127 }; 128 static u_char dma_bits[4] = {1, 2, 0, 3}; 129 130 sc->sc_iot = ia->ia_iot; 131 if (sc->sc_dev.dv_cfdata->cf_flags & 1) 132 madprobe(sc, ia->ia_iobase); 133 else 134 sc->mad_chip_type = MAD_NONE; 135 136 if (!WSS_BASE_VALID(ia->ia_iobase)) { 137 DPRINTF(("wss: configured iobase %x invalid\n", ia->ia_iobase)); 138 goto bad1; 139 } 140 141 /* Map the ports upto the AD1848 port */ 142 if (bus_space_map(sc->sc_iot, ia->ia_iobase, WSS_CODEC, 0, &sc->sc_ioh)) 143 goto bad1; 144 145 sc->sc_ad1848.sc_iot = sc->sc_iot; 146 147 /* Is there an ad1848 chip at (WSS iobase + WSS_CODEC)? */ 148 if (ad1848_mapprobe(&sc->sc_ad1848, ia->ia_iobase + WSS_CODEC) == 0) 149 goto bad; 150 151 ia->ia_iosize = WSS_NPORT; 152 153 /* Setup WSS interrupt and DMA */ 154 if (!WSS_DRQ_VALID(ia->ia_drq)) { 155 DPRINTF(("wss: configured dma chan %d invalid\n", ia->ia_drq)); 156 goto bad; 157 } 158 sc->wss_drq = ia->ia_drq; 159 160 if (sc->wss_drq != DRQUNK && !isa_drq_isfree(parent, sc->wss_drq)) 161 goto bad; 162 163 if (!WSS_IRQ_VALID(ia->ia_irq)) { 164 DPRINTF(("wss: configured interrupt %d invalid\n", ia->ia_irq)); 165 goto bad; 166 } 167 168 sc->wss_irq = ia->ia_irq; 169 170 if (sc->sc_ad1848.mode <= 1) 171 ia->ia_drq2 = DRQUNK; 172 sc->wss_recdrq = 173 sc->sc_ad1848.mode > 1 && ia->ia_drq2 != DRQUNK ? 174 ia->ia_drq2 : ia->ia_drq; 175 if (sc->wss_recdrq != sc->wss_drq && !isa_drq_isfree(parent, sc->wss_recdrq)) 176 goto bad; 177 178 /* XXX recdrq */ 179 bus_space_write_1(sc->sc_iot, sc->sc_ioh, WSS_CONFIG, 180 (interrupt_bits[ia->ia_irq] | dma_bits[ia->ia_drq])); 181 182 return 1; 183 184 bad: 185 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC); 186 bad1: 187 madunmap(sc); 188 return 0; 189 } 190 191 /* 192 * Attach hardware to driver, attach hardware driver to audio 193 * pseudo-device driver . 194 */ 195 void 196 wss_isa_attach(parent, self, aux) 197 struct device *parent, *self; 198 void *aux; 199 { 200 struct wss_softc *sc = (struct wss_softc *)self; 201 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 202 203 if (!wssfind(parent, sc, ia)) { 204 printf("%s: wssfind failed\n", sc->sc_dev.dv_xname); 205 return; 206 } 207 208 sc->sc_ic = ia->ia_ic; 209 sc->sc_ad1848.sc_isa = parent; 210 211 wssattach(sc); 212 } 213 214 /* 215 * Copyright by Hannu Savolainen 1994 216 * 217 * Redistribution and use in source and binary forms, with or without 218 * modification, are permitted provided that the following conditions are 219 * met: 1. Redistributions of source code must retain the above copyright 220 * notice, this list of conditions and the following disclaimer. 2. 221 * Redistributions in binary form must reproduce the above copyright notice, 222 * this list of conditions and the following disclaimer in the documentation 223 * and/or other materials provided with the distribution. 224 * 225 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY 226 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 227 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 228 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 229 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 230 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 231 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 232 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 233 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 234 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 235 * SUCH DAMAGE. 236 * 237 */ 238 239 /* 240 * Initialization code for OPTi MAD16 compatible audio chips. Including 241 * 242 * OPTi 82C928 MAD16 (replaced by C929) 243 * OAK OTI-601D Mozart 244 * OPTi 82C929 MAD16 Pro 245 * OPTi 82C931 246 */ 247 248 static int 249 detect_mad16(sc, chip_type) 250 struct wss_softc *sc; 251 int chip_type; 252 { 253 unsigned char tmp, tmp2; 254 255 sc->mad_chip_type = chip_type; 256 /* 257 * Check that reading a register doesn't return bus float (0xff) 258 * when the card is accessed using password. This may fail in case 259 * the card is in low power mode. Normally at least the power saving mode 260 * bit should be 0. 261 */ 262 if ((tmp = mad_read(sc, MC1_PORT)) == 0xff) { 263 DPRINTF(("MC1_PORT returned 0xff\n")); 264 return 0; 265 } 266 267 /* 268 * Now check that the gate is closed on first I/O after writing 269 * the password. (This is how a MAD16 compatible card works). 270 */ 271 if ((tmp2 = bus_space_read_1(sc->sc_iot, sc->mad_ioh, MC1_PORT)) == tmp) { 272 DPRINTF(("MC1_PORT didn't close after read (0x%02x)\n", tmp2)); 273 return 0; 274 } 275 276 mad_write(sc, MC1_PORT, tmp ^ 0x80); /* Toggle a bit */ 277 278 /* Compare the bit */ 279 if ((tmp2 = mad_read(sc, MC1_PORT)) != (tmp ^ 0x80)) { 280 mad_write(sc, MC1_PORT, tmp); /* Restore */ 281 DPRINTF(("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2)); 282 return 0; 283 } 284 285 mad_write(sc, MC1_PORT, tmp); /* Restore */ 286 return 1; 287 } 288 289 static void 290 madprobe(sc, iobase) 291 struct wss_softc *sc; 292 int iobase; 293 { 294 static int valid_ports[M_WSS_NPORTS] = 295 { M_WSS_PORT0, M_WSS_PORT1, M_WSS_PORT2, M_WSS_PORT3 }; 296 int i; 297 298 /* Allocate bus space that the MAD chip wants */ 299 if (bus_space_map(sc->sc_iot, MAD_BASE, MAD_NPORT, 0, &sc->mad_ioh)) 300 goto bad0; 301 if (bus_space_map(sc->sc_iot, MAD_REG1, MAD_LEN1, 0, &sc->mad_ioh1)) 302 goto bad1; 303 if (bus_space_map(sc->sc_iot, MAD_REG2, MAD_LEN2, 0, &sc->mad_ioh2)) 304 goto bad2; 305 if (bus_space_map(sc->sc_iot, MAD_REG3, MAD_LEN3, 0, &sc->mad_ioh3)) 306 goto bad3; 307 308 DPRINTF(("mad: Detect using password = 0xE2\n")); 309 if (!detect_mad16(sc, MAD_82C928)) { 310 /* No luck. Try different model */ 311 DPRINTF(("mad: Detect using password = 0xE3\n")); 312 if (!detect_mad16(sc, MAD_82C929)) 313 goto bad; 314 sc->mad_chip_type = MAD_82C929; 315 DPRINTF(("mad: 82C929 detected\n")); 316 } else { 317 sc->mad_chip_type = MAD_82C928; 318 if ((mad_read(sc, MC3_PORT) & 0x03) == 0x03) { 319 DPRINTF(("mad: Mozart detected\n")); 320 sc->mad_chip_type = MAD_OTI601D; 321 } else { 322 DPRINTF(("mad: 82C928 detected?\n")); 323 sc->mad_chip_type = MAD_82C928; 324 } 325 } 326 327 #ifdef AUDIO_DEBUG 328 if (wssdebug) 329 for (i = MC1_PORT; i <= MC7_PORT; i++) 330 printf("mad: port %03x = %02x\n", i, mad_read(sc, i)); 331 #endif 332 333 /* Set the WSS address. */ 334 for (i = 0; i < M_WSS_NPORTS; i++) 335 if (valid_ports[i] == iobase) 336 break; 337 if (i >= M_WSS_NPORTS) { /* Not a valid port */ 338 printf("mad: Bad WSS base address 0x%x\n", iobase); 339 goto bad; 340 } 341 sc->mad_ioindex = i; 342 /* enable WSS emulation at the I/O port, no joystick */ 343 mad_write(sc, MC1_PORT, M_WSS_PORT_SELECT(i) | MC1_JOYDISABLE); 344 mad_write(sc, MC2_PORT, 0x03); /* ? */ 345 mad_write(sc, MC3_PORT, 0xf0); /* Disable SB */ 346 return; 347 348 bad: 349 bus_space_unmap(sc->sc_iot, sc->mad_ioh3, MAD_LEN3); 350 bad3: 351 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2); 352 bad2: 353 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1); 354 bad1: 355 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT); 356 bad0: 357 sc->mad_chip_type = MAD_NONE; 358 } 359 360 static void 361 madunmap(sc) 362 struct wss_softc *sc; 363 { 364 if (sc->mad_chip_type == MAD_NONE) 365 return; 366 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT); 367 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1); 368 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2); 369 bus_space_unmap(sc->sc_iot, sc->mad_ioh3, MAD_LEN3); 370 } 371
Indexes created Fri Sep 26 08:10:20 GMT 2025