wss_isa.c revision 1.12
1 /* $NetBSD: wss_isa.c,v 1.12 2002/01/07 21:47:14 thorpej 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 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: wss_isa.c,v 1.12 2002/01/07 21:47:14 thorpej Exp $"); 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/device.h> 49 #include <sys/errno.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 *, int, 75 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 *, struct cfdata *, 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 struct cfdata *match; 95 void *aux; 96 { 97 struct isa_attach_args *ia = aux; 98 struct wss_softc probesc, *sc = &probesc; 99 struct ad1848_softc *ac = (struct ad1848_softc *)&sc->sc_ad1848; 100 101 if (ia->ia_nio < 1) 102 return 0; 103 if (ia->ia_nirq < 1) 104 return 0; 105 if (ia->ia_ndrq < 1) 106 return 0; 107 108 if (ISA_DIRECT_CONFIG(ia)) 109 return 0; 110 111 memset(sc, 0, sizeof *sc); 112 ac->sc_dev.dv_cfdata = match; 113 if (wssfind(parent, sc, 1, aux)) { 114 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC); 115 ad1848_isa_unmap(&sc->sc_ad1848); 116 madunmap(sc); 117 return 1; 118 } else 119 /* Everything is already unmapped */ 120 return 0; 121 } 122 123 static int 124 wssfind(parent, sc, probing, ia) 125 struct device *parent; 126 struct wss_softc *sc; 127 int probing; 128 struct isa_attach_args *ia; 129 { 130 struct ad1848_softc *ac = &sc->sc_ad1848.sc_ad1848; 131 static u_char interrupt_bits[12] = { 132 -1, -1, -1, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20 133 }; 134 static u_char dma_bits[4] = {1, 2, 0, 3}; 135 int ndrq, playdrq, recdrq; 136 137 sc->sc_iot = ia->ia_iot; 138 if (ac->sc_dev.dv_cfdata->cf_flags & 1) 139 madprobe(sc, ia->ia_io[0].ir_addr); 140 else 141 sc->mad_chip_type = MAD_NONE; 142 143 #if 0 144 if (!WSS_BASE_VALID(ia->ia_io[0].ir_addr)) { 145 DPRINTF(("wss: configured iobase %x invalid\n", ia->ia_iobase)); 146 goto bad1; 147 } 148 #endif 149 150 /* Map the ports upto the AD1848 port */ 151 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, WSS_CODEC, 152 0, &sc->sc_ioh)) 153 goto bad1; 154 155 ac->sc_iot = sc->sc_iot; 156 157 /* Is there an ad1848 chip at (WSS iobase + WSS_CODEC)? */ 158 if (ad1848_isa_mapprobe(&sc->sc_ad1848, 159 ia->ia_io[0].ir_addr + WSS_CODEC) == 0) 160 goto bad; 161 162 #if 0 163 /* Setup WSS interrupt and DMA */ 164 if (!WSS_DRQ_VALID(ia->ia_drq[0].ir_drq)) { 165 DPRINTF(("wss: configured dma chan %d invalid\n", 166 ia->ia_drq[0].ir_drq)); 167 goto bad; 168 } 169 #endif 170 sc->wss_playdrq = ia->ia_drq[0].ir_drq; 171 sc->wss_ic = ia->ia_ic; 172 173 if (sc->wss_playdrq != ISACF_DRQ_DEFAULT && 174 !isa_drq_isfree(sc->wss_ic, sc->wss_playdrq)) 175 goto bad; 176 177 #if 0 178 if (!WSS_IRQ_VALID(ia->ia_irq[0].ir_irq)) { 179 DPRINTF(("wss: configured interrupt %d invalid\n", 180 ia->ia_irq[0].ir_irq)); 181 goto bad; 182 } 183 #endif 184 185 sc->wss_irq = ia->ia_irq[0].ir_irq; 186 187 playdrq = ia->ia_drq[0].ir_drq; 188 if (ia->ia_ndrq > 1) { 189 ndrq = 2; 190 recdrq = ia->ia_drq[1].ir_drq; 191 } else { 192 ndrq = 1; 193 recdrq = ISACF_IRQ_DEFAULT; 194 } 195 196 if (ac->mode <= 1) 197 ndrq = 1; 198 sc->wss_recdrq = 199 ac->mode > 1 && ndrq > 1 && 200 recdrq != ISACF_DRQ_DEFAULT ? recdrq : playdrq; 201 if (sc->wss_recdrq != sc->wss_playdrq && !isa_drq_isfree(sc->wss_ic, 202 sc->wss_recdrq)) 203 goto bad; 204 205 if (probing) { 206 ia->ia_nio = 1; 207 ia->ia_io[0].ir_size = WSS_NPORT; 208 209 ia->ia_nirq = 1; 210 211 ia->ia_ndrq = ndrq; 212 ia->ia_drq[0].ir_drq = playdrq; 213 if (ndrq > 1) 214 ia->ia_drq[1].ir_drq = recdrq; 215 216 ia->ia_niomem = 0; 217 } 218 219 /* XXX recdrq */ 220 bus_space_write_1(sc->sc_iot, sc->sc_ioh, WSS_CONFIG, 221 (interrupt_bits[ia->ia_irq[0].ir_irq] | 222 dma_bits[ia->ia_drq[0].ir_drq])); 223 224 return 1; 225 226 bad: 227 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC); 228 bad1: 229 madunmap(sc); 230 return 0; 231 } 232 233 /* 234 * Attach hardware to driver, attach hardware driver to audio 235 * pseudo-device driver . 236 */ 237 void 238 wss_isa_attach(parent, self, aux) 239 struct device *parent, *self; 240 void *aux; 241 { 242 struct wss_softc *sc = (struct wss_softc *)self; 243 struct ad1848_softc *ac = (struct ad1848_softc *)&sc->sc_ad1848; 244 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 245 246 if (!wssfind(parent, sc, 0, ia)) { 247 printf("%s: wssfind failed\n", ac->sc_dev.dv_xname); 248 return; 249 } 250 251 sc->wss_ic = ia->ia_ic; 252 253 wssattach(sc); 254 } 255 256 /* 257 * Copyright by Hannu Savolainen 1994 258 * 259 * Redistribution and use in source and binary forms, with or without 260 * modification, are permitted provided that the following conditions are 261 * met: 1. Redistributions of source code must retain the above copyright 262 * notice, this list of conditions and the following disclaimer. 2. 263 * Redistributions in binary form must reproduce the above copyright notice, 264 * this list of conditions and the following disclaimer in the documentation 265 * and/or other materials provided with the distribution. 266 * 267 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY 268 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 269 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 270 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 271 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 272 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 273 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 274 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 275 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 276 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 277 * SUCH DAMAGE. 278 * 279 */ 280 281 /* 282 * Initialization code for OPTi MAD16 compatible audio chips. Including 283 * 284 * OPTi 82C928 MAD16 (replaced by C929) 285 * OAK OTI-601D Mozart 286 * OPTi 82C929 MAD16 Pro 287 * OPTi 82C931 288 */ 289 290 static int 291 detect_mad16(sc, chip_type) 292 struct wss_softc *sc; 293 int chip_type; 294 { 295 unsigned char tmp, tmp2; 296 297 sc->mad_chip_type = chip_type; 298 /* 299 * Check that reading a register doesn't return bus float (0xff) 300 * when the card is accessed using password. This may fail in case 301 * the card is in low power mode. Normally at least the power saving mode 302 * bit should be 0. 303 */ 304 if ((tmp = mad_read(sc, MC1_PORT)) == 0xff) { 305 DPRINTF(("MC1_PORT returned 0xff\n")); 306 return 0; 307 } 308 309 /* 310 * Now check that the gate is closed on first I/O after writing 311 * the password. (This is how a MAD16 compatible card works). 312 */ 313 if ((tmp2 = bus_space_read_1(sc->sc_iot, sc->mad_ioh, MC1_PORT)) == tmp) { 314 DPRINTF(("MC1_PORT didn't close after read (0x%02x)\n", tmp2)); 315 return 0; 316 } 317 318 mad_write(sc, MC1_PORT, tmp ^ 0x80); /* Toggle a bit */ 319 320 /* Compare the bit */ 321 if ((tmp2 = mad_read(sc, MC1_PORT)) != (tmp ^ 0x80)) { 322 mad_write(sc, MC1_PORT, tmp); /* Restore */ 323 DPRINTF(("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2)); 324 return 0; 325 } 326 327 mad_write(sc, MC1_PORT, tmp); /* Restore */ 328 return 1; 329 } 330 331 static void 332 madprobe(sc, iobase) 333 struct wss_softc *sc; 334 int iobase; 335 { 336 static int valid_ports[M_WSS_NPORTS] = 337 { M_WSS_PORT0, M_WSS_PORT1, M_WSS_PORT2, M_WSS_PORT3 }; 338 int i; 339 340 /* Allocate bus space that the MAD chip wants */ 341 if (bus_space_map(sc->sc_iot, MAD_BASE, MAD_NPORT, 0, &sc->mad_ioh)) 342 goto bad0; 343 if (bus_space_map(sc->sc_iot, MAD_REG1, MAD_LEN1, 0, &sc->mad_ioh1)) 344 goto bad1; 345 if (bus_space_map(sc->sc_iot, MAD_REG2, MAD_LEN2, 0, &sc->mad_ioh2)) 346 goto bad2; 347 if (bus_space_map(sc->sc_iot, MAD_REG3, MAD_LEN3, 0, &sc->sc_opl_ioh)) 348 goto bad3; 349 350 DPRINTF(("mad: Detect using password = 0xE2\n")); 351 if (!detect_mad16(sc, MAD_82C928)) { 352 /* No luck. Try different model */ 353 DPRINTF(("mad: Detect using password = 0xE3\n")); 354 if (!detect_mad16(sc, MAD_82C929)) 355 goto bad; 356 sc->mad_chip_type = MAD_82C929; 357 DPRINTF(("mad: 82C929 detected\n")); 358 } else { 359 sc->mad_chip_type = MAD_82C928; 360 if ((mad_read(sc, MC3_PORT) & 0x03) == 0x03) { 361 DPRINTF(("mad: Mozart detected\n")); 362 sc->mad_chip_type = MAD_OTI601D; 363 } else { 364 DPRINTF(("mad: 82C928 detected?\n")); 365 sc->mad_chip_type = MAD_82C928; 366 } 367 } 368 369 #ifdef AUDIO_DEBUG 370 if (wssdebug) 371 for (i = MC1_PORT; i <= MC7_PORT; i++) 372 printf("mad: port %03x = %02x\n", i, mad_read(sc, i)); 373 #endif 374 375 /* Set the WSS address. */ 376 for (i = 0; i < M_WSS_NPORTS; i++) 377 if (valid_ports[i] == iobase) 378 break; 379 if (i >= M_WSS_NPORTS) { /* Not a valid port */ 380 printf("mad: Bad WSS base address 0x%x\n", iobase); 381 goto bad; 382 } 383 sc->mad_ioindex = i; 384 /* enable WSS emulation at the I/O port, no joystick */ 385 mad_write(sc, MC1_PORT, M_WSS_PORT_SELECT(i) | MC1_JOYDISABLE); 386 mad_write(sc, MC2_PORT, 0x03); /* ? */ 387 mad_write(sc, MC3_PORT, 0xf0); /* Disable SB */ 388 return; 389 390 bad: 391 bus_space_unmap(sc->sc_iot, sc->sc_opl_ioh, MAD_LEN3); 392 bad3: 393 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2); 394 bad2: 395 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1); 396 bad1: 397 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT); 398 bad0: 399 sc->mad_chip_type = MAD_NONE; 400 } 401 402 static void 403 madunmap(sc) 404 struct wss_softc *sc; 405 { 406 if (sc->mad_chip_type == MAD_NONE) 407 return; 408 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT); 409 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1); 410 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2); 411 bus_space_unmap(sc->sc_iot, sc->sc_opl_ioh, MAD_LEN3); 412 } 413
Indexes created Fri Sep 26 08:10:20 GMT 2025