wss_isa.c revision 1.16.2.1
1 /* $NetBSD: wss_isa.c,v 1.16.2.1 2004/09/18 14:47:47 skrll 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 1.16.2.1 2004/09/18 14:47:47 skrll 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 CFATTACH_DECL(wss_isa, sizeof(struct wss_softc), 85 wss_isa_probe, wss_isa_attach, NULL, NULL); 86 87 /* 88 * Probe for the Microsoft Sound System hardware. 89 */ 90 int 91 wss_isa_probe(parent, match, aux) 92 struct device *parent; 93 struct cfdata *match; 94 void *aux; 95 { 96 struct isa_attach_args *ia = aux; 97 struct wss_softc probesc, *sc = &probesc; 98 struct ad1848_softc *ac = (struct ad1848_softc *)&sc->sc_ad1848; 99 100 if (ia->ia_nio < 1) 101 return 0; 102 if (ia->ia_nirq < 1) 103 return 0; 104 if (ia->ia_ndrq < 1) 105 return 0; 106 107 if (ISA_DIRECT_CONFIG(ia)) 108 return 0; 109 110 memset(sc, 0, sizeof *sc); 111 ac->sc_dev.dv_cfdata = match; 112 if (wssfind(parent, sc, 1, aux)) { 113 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC); 114 ad1848_isa_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, probing, ia) 124 struct device *parent; 125 struct wss_softc *sc; 126 int probing; 127 struct isa_attach_args *ia; 128 { 129 struct ad1848_softc *ac = &sc->sc_ad1848.sc_ad1848; 130 static u_char interrupt_bits[12] = { 131 -1, -1, -1, -1, -1, -1, -1, 0x08, -1, 0x10, 0x18, 0x20 132 }; 133 static u_char dma_bits[4] = {1, 2, 0, 3}; 134 int ndrq, playdrq, recdrq; 135 136 sc->sc_iot = ia->ia_iot; 137 if (ac->sc_dev.dv_cfdata->cf_flags & 1) 138 madprobe(sc, ia->ia_io[0].ir_addr); 139 else 140 sc->mad_chip_type = MAD_NONE; 141 142 #if 0 143 if (!WSS_BASE_VALID(ia->ia_io[0].ir_addr)) { 144 DPRINTF(("wss: configured iobase %x invalid\n", ia->ia_iobase)); 145 goto bad1; 146 } 147 #endif 148 149 /* Map the ports upto the AD1848 port */ 150 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, WSS_CODEC, 151 0, &sc->sc_ioh)) 152 goto bad1; 153 154 ac->sc_iot = sc->sc_iot; 155 156 /* Is there an ad1848 chip at (WSS iobase + WSS_CODEC)? */ 157 if (ad1848_isa_mapprobe(&sc->sc_ad1848, 158 ia->ia_io[0].ir_addr + WSS_CODEC) == 0) 159 goto bad; 160 161 #if 0 162 /* Setup WSS interrupt and DMA */ 163 if (!WSS_DRQ_VALID(ia->ia_drq[0].ir_drq)) { 164 DPRINTF(("wss: configured DMA chan %d invalid\n", 165 ia->ia_drq[0].ir_drq)); 166 goto bad; 167 } 168 #endif 169 sc->wss_playdrq = ia->ia_drq[0].ir_drq; 170 sc->wss_ic = ia->ia_ic; 171 172 if (sc->wss_playdrq != ISA_UNKNOWN_DRQ && 173 !isa_drq_isfree(sc->wss_ic, sc->wss_playdrq)) 174 goto bad; 175 176 #if 0 177 if (!WSS_IRQ_VALID(ia->ia_irq[0].ir_irq)) { 178 DPRINTF(("wss: configured interrupt %d invalid\n", 179 ia->ia_irq[0].ir_irq)); 180 goto bad; 181 } 182 #endif 183 184 sc->wss_irq = ia->ia_irq[0].ir_irq; 185 186 playdrq = ia->ia_drq[0].ir_drq; 187 if (ia->ia_ndrq > 1) { 188 ndrq = 2; 189 recdrq = ia->ia_drq[1].ir_drq; 190 } else { 191 ndrq = 1; 192 recdrq = ISA_UNKNOWN_DRQ; 193 } 194 195 if (ac->mode <= 1) 196 ndrq = 1; 197 sc->wss_recdrq = 198 ac->mode > 1 && ndrq > 1 && 199 recdrq != ISA_UNKNOWN_DRQ ? recdrq : playdrq; 200 if (sc->wss_recdrq != sc->wss_playdrq && !isa_drq_isfree(sc->wss_ic, 201 sc->wss_recdrq)) 202 goto bad; 203 204 if (probing) { 205 ia->ia_nio = 1; 206 ia->ia_io[0].ir_size = WSS_NPORT; 207 208 ia->ia_nirq = 1; 209 210 ia->ia_ndrq = ndrq; 211 ia->ia_drq[0].ir_drq = playdrq; 212 if (ndrq > 1) 213 ia->ia_drq[1].ir_drq = recdrq; 214 215 ia->ia_niomem = 0; 216 } 217 218 /* XXX recdrq */ 219 bus_space_write_1(sc->sc_iot, sc->sc_ioh, WSS_CONFIG, 220 (interrupt_bits[ia->ia_irq[0].ir_irq] | 221 dma_bits[ia->ia_drq[0].ir_drq])); 222 223 return 1; 224 225 bad: 226 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC); 227 bad1: 228 madunmap(sc); 229 return 0; 230 } 231 232 /* 233 * Attach hardware to driver, attach hardware driver to audio 234 * pseudo-device driver . 235 */ 236 void 237 wss_isa_attach(parent, self, aux) 238 struct device *parent, *self; 239 void *aux; 240 { 241 struct wss_softc *sc = (struct wss_softc *)self; 242 struct ad1848_softc *ac = (struct ad1848_softc *)&sc->sc_ad1848; 243 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 244 245 if (!wssfind(parent, sc, 0, ia)) { 246 printf("%s: wssfind failed\n", ac->sc_dev.dv_xname); 247 return; 248 } 249 250 sc->wss_ic = ia->ia_ic; 251 252 wssattach(sc); 253 } 254 255 /* 256 * Copyright by Hannu Savolainen 1994 257 * 258 * Redistribution and use in source and binary forms, with or without 259 * modification, are permitted provided that the following conditions are 260 * met: 1. Redistributions of source code must retain the above copyright 261 * notice, this list of conditions and the following disclaimer. 2. 262 * Redistributions in binary form must reproduce the above copyright notice, 263 * this list of conditions and the following disclaimer in the documentation 264 * and/or other materials provided with the distribution. 265 * 266 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY 267 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 268 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 269 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 270 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 271 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 272 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 273 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 274 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 275 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 276 * SUCH DAMAGE. 277 * 278 */ 279 280 /* 281 * Initialization code for OPTi MAD16 compatible audio chips. Including 282 * 283 * OPTi 82C928 MAD16 (replaced by C929) 284 * OAK OTI-601D Mozart 285 * OPTi 82C929 MAD16 Pro 286 * OPTi 82C931 287 */ 288 289 static int 290 detect_mad16(sc, chip_type) 291 struct wss_softc *sc; 292 int chip_type; 293 { 294 unsigned char tmp, tmp2; 295 296 sc->mad_chip_type = chip_type; 297 /* 298 * Check that reading a register doesn't return bus float (0xff) 299 * when the card is accessed using password. This may fail in case 300 * the card is in low power mode. Normally at least the power saving mode 301 * bit should be 0. 302 */ 303 if ((tmp = mad_read(sc, MC1_PORT)) == 0xff) { 304 DPRINTF(("MC1_PORT returned 0xff\n")); 305 return 0; 306 } 307 308 /* 309 * Now check that the gate is closed on first I/O after writing 310 * the password. (This is how a MAD16 compatible card works). 311 */ 312 if ((tmp2 = bus_space_read_1(sc->sc_iot, sc->mad_ioh, MC1_PORT)) == tmp) { 313 DPRINTF(("MC1_PORT didn't close after read (0x%02x)\n", tmp2)); 314 return 0; 315 } 316 317 mad_write(sc, MC1_PORT, tmp ^ 0x80); /* Toggle a bit */ 318 319 /* Compare the bit */ 320 if ((tmp2 = mad_read(sc, MC1_PORT)) != (tmp ^ 0x80)) { 321 mad_write(sc, MC1_PORT, tmp); /* Restore */ 322 DPRINTF(("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2)); 323 return 0; 324 } 325 326 mad_write(sc, MC1_PORT, tmp); /* Restore */ 327 return 1; 328 } 329 330 static void 331 madprobe(sc, iobase) 332 struct wss_softc *sc; 333 int iobase; 334 { 335 static int valid_ports[M_WSS_NPORTS] = 336 { M_WSS_PORT0, M_WSS_PORT1, M_WSS_PORT2, M_WSS_PORT3 }; 337 int i; 338 339 /* Allocate bus space that the MAD chip wants */ 340 if (bus_space_map(sc->sc_iot, MAD_BASE, MAD_NPORT, 0, &sc->mad_ioh)) 341 goto bad0; 342 if (bus_space_map(sc->sc_iot, MAD_REG1, MAD_LEN1, 0, &sc->mad_ioh1)) 343 goto bad1; 344 if (bus_space_map(sc->sc_iot, MAD_REG2, MAD_LEN2, 0, &sc->mad_ioh2)) 345 goto bad2; 346 if (bus_space_map(sc->sc_iot, MAD_REG3, MAD_LEN3, 0, &sc->sc_opl_ioh)) 347 goto bad3; 348 349 DPRINTF(("mad: Detect using password = 0xE2\n")); 350 if (!detect_mad16(sc, MAD_82C928)) { 351 /* No luck. Try different model */ 352 DPRINTF(("mad: Detect using password = 0xE3\n")); 353 if (!detect_mad16(sc, MAD_82C929)) 354 goto bad; 355 sc->mad_chip_type = MAD_82C929; 356 DPRINTF(("mad: 82C929 detected\n")); 357 } else { 358 sc->mad_chip_type = MAD_82C928; 359 if ((mad_read(sc, MC3_PORT) & 0x03) == 0x03) { 360 DPRINTF(("mad: Mozart detected\n")); 361 sc->mad_chip_type = MAD_OTI601D; 362 } else { 363 DPRINTF(("mad: 82C928 detected?\n")); 364 sc->mad_chip_type = MAD_82C928; 365 } 366 } 367 368 #ifdef AUDIO_DEBUG 369 if (wssdebug) 370 for (i = MC1_PORT; i <= MC7_PORT; i++) 371 printf("mad: port %03x = %02x\n", i, mad_read(sc, i)); 372 #endif 373 374 /* Set the WSS address. */ 375 for (i = 0; i < M_WSS_NPORTS; i++) 376 if (valid_ports[i] == iobase) 377 break; 378 if (i >= M_WSS_NPORTS) { /* Not a valid port */ 379 printf("mad: Bad WSS base address 0x%x\n", iobase); 380 goto bad; 381 } 382 sc->mad_ioindex = i; 383 /* enable WSS emulation at the I/O port, no joystick */ 384 mad_write(sc, MC1_PORT, M_WSS_PORT_SELECT(i) | MC1_JOYDISABLE); 385 mad_write(sc, MC2_PORT, 0x03); /* ? */ 386 mad_write(sc, MC3_PORT, 0xf0); /* Disable SB */ 387 return; 388 389 bad: 390 bus_space_unmap(sc->sc_iot, sc->sc_opl_ioh, MAD_LEN3); 391 bad3: 392 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2); 393 bad2: 394 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1); 395 bad1: 396 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT); 397 bad0: 398 sc->mad_chip_type = MAD_NONE; 399 } 400 401 static void 402 madunmap(sc) 403 struct wss_softc *sc; 404 { 405 if (sc->mad_chip_type == MAD_NONE) 406 return; 407 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT); 408 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1); 409 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2); 410 bus_space_unmap(sc->sc_iot, sc->sc_opl_ioh, MAD_LEN3); 411 } 412
Indexes created Tue Oct 14 01:09:49 GMT 2025