wss_isa.c revision 1.2
1 /* $NetBSD: wss_isa.c,v 1.2 1998/02/23 14:12:18 drochner 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 55 #include <sys/audioio.h> 56 #include <dev/audio_if.h> 57 58 #include <dev/isa/isavar.h> 59 #include <dev/isa/isadmavar.h> 60 61 #include <dev/ic/ad1848reg.h> 62 #include <dev/isa/ad1848var.h> 63 #include <dev/isa/wssreg.h> 64 #include <dev/isa/wssvar.h> 65 #include <dev/isa/madreg.h> 66 67 #ifdef AUDIO_DEBUG 68 #define DPRINTF(x) if (wssdebug) printf x 69 extern int wssdebug; 70 #else 71 #define DPRINTF(x) 72 #endif 73 74 static int wssfind __P((struct device *, struct wss_softc *, struct isa_attach_args *)); 75 76 static void madprobe __P((struct wss_softc *, int)); 77 static void madunmap __P((struct wss_softc *)); 78 static int detect_mad16 __P((struct wss_softc *, int)); 79 80 #ifdef __BROKEN_INDIRECT_CONFIG 81 int wss_isa_probe __P((struct device *, void *, void *)); 82 #else 83 int wss_isa_probe __P((struct device *, struct cfdata *, void *)); 84 #endif 85 void wss_isa_attach __P((struct device *, struct device *, void *)); 86 87 struct cfattach wss_isa_ca = { 88 sizeof(struct wss_softc), wss_isa_probe, wss_isa_attach 89 }; 90 91 /* 92 * Probe for the Microsoft Sound System hardware. 93 */ 94 int 95 wss_isa_probe(parent, match, aux) 96 struct device *parent; 97 #ifdef __BROKEN_INDIRECT_CONFIG 98 void *match; 99 #else 100 struct cfdata *match; 101 #endif 102 void *aux; 103 { 104 struct wss_softc probesc, *sc = &probesc; 105 106 bzero(sc, sizeof *sc); 107 #ifdef __BROKEN_INDIRECT_CONFIG 108 sc->sc_dev.dv_cfdata = ((struct device *)match)->dv_cfdata; 109 #else 110 sc->sc_dev.dv_cfdata = match; 111 #endif 112 if (wssfind(parent, sc, aux)) { 113 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC); 114 ad1848_unmap(&sc->sc_ad1848); 115 madunmap(sc); 116 return 1; 117 } else 118 /* Everything is already unmapped */ 119 return 0; 120 } 121 122 static int 123 wssfind(parent, sc, ia) 124 struct device *parent; 125 struct wss_softc *sc; 126 struct isa_attach_args *ia; 127 { 128 static u_char interrupt_bits[12] = { 129 -1, -1, -1, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20 130 }; 131 static u_char dma_bits[4] = {1, 2, 0, 3}; 132 133 sc->sc_iot = ia->ia_iot; 134 if (sc->sc_dev.dv_cfdata->cf_flags & 1) 135 madprobe(sc, ia->ia_iobase); 136 else 137 sc->mad_chip_type = MAD_NONE; 138 139 if (!WSS_BASE_VALID(ia->ia_iobase)) { 140 DPRINTF(("wss: configured iobase %x invalid\n", ia->ia_iobase)); 141 goto bad1; 142 } 143 144 /* Map the ports upto the AD1848 port */ 145 if (bus_space_map(sc->sc_iot, ia->ia_iobase, WSS_CODEC, 0, &sc->sc_ioh)) 146 goto bad1; 147 148 sc->sc_ad1848.sc_iot = sc->sc_iot; 149 150 /* Is there an ad1848 chip at (WSS iobase + WSS_CODEC)? */ 151 if (ad1848_mapprobe(&sc->sc_ad1848, ia->ia_iobase + WSS_CODEC) == 0) 152 goto bad; 153 154 ia->ia_iosize = WSS_NPORT; 155 156 /* Setup WSS interrupt and DMA */ 157 if (!WSS_DRQ_VALID(ia->ia_drq)) { 158 DPRINTF(("wss: configured dma chan %d invalid\n", ia->ia_drq)); 159 goto bad; 160 } 161 sc->wss_drq = ia->ia_drq; 162 163 if (sc->wss_drq != DRQUNK && !isa_drq_isfree(parent, sc->wss_drq)) 164 goto bad; 165 166 if (!WSS_IRQ_VALID(ia->ia_irq)) { 167 DPRINTF(("wss: configured interrupt %d invalid\n", ia->ia_irq)); 168 goto bad; 169 } 170 171 sc->wss_irq = ia->ia_irq; 172 173 if (sc->sc_ad1848.mode <= 1) 174 ia->ia_drq2 = DRQUNK; 175 sc->wss_recdrq = 176 sc->sc_ad1848.mode > 1 && ia->ia_drq2 != DRQUNK ? 177 ia->ia_drq2 : ia->ia_drq; 178 if (sc->wss_recdrq != sc->wss_drq && !isa_drq_isfree(parent, sc->wss_recdrq)) 179 goto bad; 180 181 /* XXX recdrq */ 182 bus_space_write_1(sc->sc_iot, sc->sc_ioh, WSS_CONFIG, 183 (interrupt_bits[ia->ia_irq] | dma_bits[ia->ia_drq])); 184 185 return 1; 186 187 bad: 188 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC); 189 bad1: 190 madunmap(sc); 191 return 0; 192 } 193 194 /* 195 * Attach hardware to driver, attach hardware driver to audio 196 * pseudo-device driver . 197 */ 198 void 199 wss_isa_attach(parent, self, aux) 200 struct device *parent, *self; 201 void *aux; 202 { 203 struct wss_softc *sc = (struct wss_softc *)self; 204 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 205 206 if (!wssfind(parent, sc, ia)) { 207 printf("%s: wssfind failed\n", sc->sc_dev.dv_xname); 208 return; 209 } 210 211 sc->sc_ic = ia->ia_ic; 212 sc->sc_ad1848.sc_isa = parent; 213 214 wssattach(sc); 215 } 216 217 /* 218 * Copyright by Hannu Savolainen 1994 219 * 220 * Redistribution and use in source and binary forms, with or without 221 * modification, are permitted provided that the following conditions are 222 * met: 1. Redistributions of source code must retain the above copyright 223 * notice, this list of conditions and the following disclaimer. 2. 224 * Redistributions in binary form must reproduce the above copyright notice, 225 * this list of conditions and the following disclaimer in the documentation 226 * and/or other materials provided with the distribution. 227 * 228 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY 229 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 230 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 231 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 232 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 233 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 234 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 235 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 236 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 237 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 238 * SUCH DAMAGE. 239 * 240 */ 241 242 /* 243 * Initialization code for OPTi MAD16 compatible audio chips. Including 244 * 245 * OPTi 82C928 MAD16 (replaced by C929) 246 * OAK OTI-601D Mozart 247 * OPTi 82C929 MAD16 Pro 248 * OPTi 82C931 249 */ 250 251 static int 252 detect_mad16(sc, chip_type) 253 struct wss_softc *sc; 254 int chip_type; 255 { 256 unsigned char tmp, tmp2; 257 258 sc->mad_chip_type = chip_type; 259 /* 260 * Check that reading a register doesn't return bus float (0xff) 261 * when the card is accessed using password. This may fail in case 262 * the card is in low power mode. Normally at least the power saving mode 263 * bit should be 0. 264 */ 265 if ((tmp = mad_read(sc, MC1_PORT)) == 0xff) { 266 DPRINTF(("MC1_PORT returned 0xff\n")); 267 return 0; 268 } 269 270 /* 271 * Now check that the gate is closed on first I/O after writing 272 * the password. (This is how a MAD16 compatible card works). 273 */ 274 if ((tmp2 = bus_space_read_1(sc->sc_iot, sc->mad_ioh, MC1_PORT)) == tmp) { 275 DPRINTF(("MC1_PORT didn't close after read (0x%02x)\n", tmp2)); 276 return 0; 277 } 278 279 mad_write(sc, MC1_PORT, tmp ^ 0x80); /* Toggle a bit */ 280 281 /* Compare the bit */ 282 if ((tmp2 = mad_read(sc, MC1_PORT)) != (tmp ^ 0x80)) { 283 mad_write(sc, MC1_PORT, tmp); /* Restore */ 284 DPRINTF(("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2)); 285 return 0; 286 } 287 288 mad_write(sc, MC1_PORT, tmp); /* Restore */ 289 return 1; 290 } 291 292 static void 293 madprobe(sc, iobase) 294 struct wss_softc *sc; 295 int iobase; 296 { 297 static int valid_ports[M_WSS_NPORTS] = 298 { M_WSS_PORT0, M_WSS_PORT1, M_WSS_PORT2, M_WSS_PORT3 }; 299 int i; 300 301 /* Allocate bus space that the MAD chip wants */ 302 if (bus_space_map(sc->sc_iot, MAD_BASE, MAD_NPORT, 0, &sc->mad_ioh)) 303 goto bad0; 304 if (bus_space_map(sc->sc_iot, MAD_REG1, MAD_LEN1, 0, &sc->mad_ioh1)) 305 goto bad1; 306 if (bus_space_map(sc->sc_iot, MAD_REG2, MAD_LEN2, 0, &sc->mad_ioh2)) 307 goto bad2; 308 if (bus_space_map(sc->sc_iot, MAD_REG3, MAD_LEN3, 0, &sc->mad_ioh3)) 309 goto bad3; 310 311 DPRINTF(("mad: Detect using password = 0xE2\n")); 312 if (!detect_mad16(sc, MAD_82C928)) { 313 /* No luck. Try different model */ 314 DPRINTF(("mad: Detect using password = 0xE3\n")); 315 if (!detect_mad16(sc, MAD_82C929)) 316 goto bad; 317 sc->mad_chip_type = MAD_82C929; 318 DPRINTF(("mad: 82C929 detected\n")); 319 } else { 320 sc->mad_chip_type = MAD_82C928; 321 if ((mad_read(sc, MC3_PORT) & 0x03) == 0x03) { 322 DPRINTF(("mad: Mozart detected\n")); 323 sc->mad_chip_type = MAD_OTI601D; 324 } else { 325 DPRINTF(("mad: 82C928 detected?\n")); 326 sc->mad_chip_type = MAD_82C928; 327 } 328 } 329 330 #ifdef AUDIO_DEBUG 331 if (wssdebug) 332 for (i = MC1_PORT; i <= MC7_PORT; i++) 333 printf("mad: port %03x = %02x\n", i, mad_read(sc, i)); 334 #endif 335 336 /* Set the WSS address. */ 337 for (i = 0; i < M_WSS_NPORTS; i++) 338 if (valid_ports[i] == iobase) 339 break; 340 if (i >= M_WSS_NPORTS) { /* Not a valid port */ 341 printf("mad: Bad WSS base address 0x%x\n", iobase); 342 goto bad; 343 } 344 sc->mad_ioindex = i; 345 /* enable WSS emulation at the I/O port, no joystick */ 346 mad_write(sc, MC1_PORT, M_WSS_PORT_SELECT(i) | MC1_JOYDISABLE); 347 mad_write(sc, MC2_PORT, 0x03); /* ? */ 348 mad_write(sc, MC3_PORT, 0xf0); /* Disable SB */ 349 return; 350 351 bad: 352 bus_space_unmap(sc->sc_iot, sc->mad_ioh3, MAD_LEN3); 353 bad3: 354 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2); 355 bad2: 356 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1); 357 bad1: 358 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT); 359 bad0: 360 sc->mad_chip_type = MAD_NONE; 361 } 362 363 static void 364 madunmap(sc) 365 struct wss_softc *sc; 366 { 367 if (sc->mad_chip_type == MAD_NONE) 368 return; 369 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT); 370 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1); 371 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2); 372 bus_space_unmap(sc->sc_iot, sc->mad_ioh3, MAD_LEN3); 373 } 374
Indexes created Mon Sep 29 03:10:08 GMT 2025