wss_isa.c revision 1.3
1 /* $NetBSD: wss_isa.c,v 1.3 1998/06/09 00:05:47 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 #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 sc->wss_ic = ia->ia_ic; 163 164 if (sc->wss_drq != DRQUNK && !isa_drq_isfree(sc->wss_ic, sc->wss_drq)) 165 goto bad; 166 167 if (!WSS_IRQ_VALID(ia->ia_irq)) { 168 DPRINTF(("wss: configured interrupt %d invalid\n", ia->ia_irq)); 169 goto bad; 170 } 171 172 sc->wss_irq = ia->ia_irq; 173 174 if (sc->sc_ad1848.mode <= 1) 175 ia->ia_drq2 = DRQUNK; 176 sc->wss_recdrq = 177 sc->sc_ad1848.mode > 1 && ia->ia_drq2 != DRQUNK ? 178 ia->ia_drq2 : ia->ia_drq; 179 if (sc->wss_recdrq != sc->wss_drq && !isa_drq_isfree(sc->wss_ic, 180 sc->wss_recdrq)) 181 goto bad; 182 183 /* XXX recdrq */ 184 bus_space_write_1(sc->sc_iot, sc->sc_ioh, WSS_CONFIG, 185 (interrupt_bits[ia->ia_irq] | dma_bits[ia->ia_drq])); 186 187 return 1; 188 189 bad: 190 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WSS_CODEC); 191 bad1: 192 madunmap(sc); 193 return 0; 194 } 195 196 /* 197 * Attach hardware to driver, attach hardware driver to audio 198 * pseudo-device driver . 199 */ 200 void 201 wss_isa_attach(parent, self, aux) 202 struct device *parent, *self; 203 void *aux; 204 { 205 struct wss_softc *sc = (struct wss_softc *)self; 206 struct isa_attach_args *ia = (struct isa_attach_args *)aux; 207 208 if (!wssfind(parent, sc, ia)) { 209 printf("%s: wssfind failed\n", sc->sc_dev.dv_xname); 210 return; 211 } 212 213 sc->wss_ic = ia->ia_ic; 214 215 wssattach(sc); 216 } 217 218 /* 219 * Copyright by Hannu Savolainen 1994 220 * 221 * Redistribution and use in source and binary forms, with or without 222 * modification, are permitted provided that the following conditions are 223 * met: 1. Redistributions of source code must retain the above copyright 224 * notice, this list of conditions and the following disclaimer. 2. 225 * Redistributions in binary form must reproduce the above copyright notice, 226 * this list of conditions and the following disclaimer in the documentation 227 * and/or other materials provided with the distribution. 228 * 229 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY 230 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 231 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 232 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 233 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 234 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 235 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 236 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 237 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 238 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 239 * SUCH DAMAGE. 240 * 241 */ 242 243 /* 244 * Initialization code for OPTi MAD16 compatible audio chips. Including 245 * 246 * OPTi 82C928 MAD16 (replaced by C929) 247 * OAK OTI-601D Mozart 248 * OPTi 82C929 MAD16 Pro 249 * OPTi 82C931 250 */ 251 252 static int 253 detect_mad16(sc, chip_type) 254 struct wss_softc *sc; 255 int chip_type; 256 { 257 unsigned char tmp, tmp2; 258 259 sc->mad_chip_type = chip_type; 260 /* 261 * Check that reading a register doesn't return bus float (0xff) 262 * when the card is accessed using password. This may fail in case 263 * the card is in low power mode. Normally at least the power saving mode 264 * bit should be 0. 265 */ 266 if ((tmp = mad_read(sc, MC1_PORT)) == 0xff) { 267 DPRINTF(("MC1_PORT returned 0xff\n")); 268 return 0; 269 } 270 271 /* 272 * Now check that the gate is closed on first I/O after writing 273 * the password. (This is how a MAD16 compatible card works). 274 */ 275 if ((tmp2 = bus_space_read_1(sc->sc_iot, sc->mad_ioh, MC1_PORT)) == tmp) { 276 DPRINTF(("MC1_PORT didn't close after read (0x%02x)\n", tmp2)); 277 return 0; 278 } 279 280 mad_write(sc, MC1_PORT, tmp ^ 0x80); /* Toggle a bit */ 281 282 /* Compare the bit */ 283 if ((tmp2 = mad_read(sc, MC1_PORT)) != (tmp ^ 0x80)) { 284 mad_write(sc, MC1_PORT, tmp); /* Restore */ 285 DPRINTF(("Bit revert test failed (0x%02x, 0x%02x)\n", tmp, tmp2)); 286 return 0; 287 } 288 289 mad_write(sc, MC1_PORT, tmp); /* Restore */ 290 return 1; 291 } 292 293 static void 294 madprobe(sc, iobase) 295 struct wss_softc *sc; 296 int iobase; 297 { 298 static int valid_ports[M_WSS_NPORTS] = 299 { M_WSS_PORT0, M_WSS_PORT1, M_WSS_PORT2, M_WSS_PORT3 }; 300 int i; 301 302 /* Allocate bus space that the MAD chip wants */ 303 if (bus_space_map(sc->sc_iot, MAD_BASE, MAD_NPORT, 0, &sc->mad_ioh)) 304 goto bad0; 305 if (bus_space_map(sc->sc_iot, MAD_REG1, MAD_LEN1, 0, &sc->mad_ioh1)) 306 goto bad1; 307 if (bus_space_map(sc->sc_iot, MAD_REG2, MAD_LEN2, 0, &sc->mad_ioh2)) 308 goto bad2; 309 if (bus_space_map(sc->sc_iot, MAD_REG3, MAD_LEN3, 0, &sc->mad_ioh3)) 310 goto bad3; 311 312 DPRINTF(("mad: Detect using password = 0xE2\n")); 313 if (!detect_mad16(sc, MAD_82C928)) { 314 /* No luck. Try different model */ 315 DPRINTF(("mad: Detect using password = 0xE3\n")); 316 if (!detect_mad16(sc, MAD_82C929)) 317 goto bad; 318 sc->mad_chip_type = MAD_82C929; 319 DPRINTF(("mad: 82C929 detected\n")); 320 } else { 321 sc->mad_chip_type = MAD_82C928; 322 if ((mad_read(sc, MC3_PORT) & 0x03) == 0x03) { 323 DPRINTF(("mad: Mozart detected\n")); 324 sc->mad_chip_type = MAD_OTI601D; 325 } else { 326 DPRINTF(("mad: 82C928 detected?\n")); 327 sc->mad_chip_type = MAD_82C928; 328 } 329 } 330 331 #ifdef AUDIO_DEBUG 332 if (wssdebug) 333 for (i = MC1_PORT; i <= MC7_PORT; i++) 334 printf("mad: port %03x = %02x\n", i, mad_read(sc, i)); 335 #endif 336 337 /* Set the WSS address. */ 338 for (i = 0; i < M_WSS_NPORTS; i++) 339 if (valid_ports[i] == iobase) 340 break; 341 if (i >= M_WSS_NPORTS) { /* Not a valid port */ 342 printf("mad: Bad WSS base address 0x%x\n", iobase); 343 goto bad; 344 } 345 sc->mad_ioindex = i; 346 /* enable WSS emulation at the I/O port, no joystick */ 347 mad_write(sc, MC1_PORT, M_WSS_PORT_SELECT(i) | MC1_JOYDISABLE); 348 mad_write(sc, MC2_PORT, 0x03); /* ? */ 349 mad_write(sc, MC3_PORT, 0xf0); /* Disable SB */ 350 return; 351 352 bad: 353 bus_space_unmap(sc->sc_iot, sc->mad_ioh3, MAD_LEN3); 354 bad3: 355 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2); 356 bad2: 357 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1); 358 bad1: 359 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT); 360 bad0: 361 sc->mad_chip_type = MAD_NONE; 362 } 363 364 static void 365 madunmap(sc) 366 struct wss_softc *sc; 367 { 368 if (sc->mad_chip_type == MAD_NONE) 369 return; 370 bus_space_unmap(sc->sc_iot, sc->mad_ioh, MAD_NPORT); 371 bus_space_unmap(sc->sc_iot, sc->mad_ioh1, MAD_LEN1); 372 bus_space_unmap(sc->sc_iot, sc->mad_ioh2, MAD_LEN2); 373 bus_space_unmap(sc->sc_iot, sc->mad_ioh3, MAD_LEN3); 374 } 375
Indexes created Sun Sep 28 07:09:56 GMT 2025