sb.c revision 1.44
1 /* $NetBSD: sb.c,v 1.44 1997/04/02 03:58:25 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 1991-1993 Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the Computer Systems 18 * Engineering Group at Lawrence Berkeley Laboratory. 19 * 4. Neither the name of the University nor of the Laboratory may be used 20 * to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/errno.h> 40 #include <sys/ioctl.h> 41 #include <sys/syslog.h> 42 #include <sys/device.h> 43 #include <sys/proc.h> 44 45 #include <machine/cpu.h> 46 #include <machine/intr.h> 47 #include <machine/pio.h> 48 49 #include <sys/audioio.h> 50 #include <dev/audio_if.h> 51 #include <dev/mulaw.h> 52 53 #include <dev/isa/isavar.h> 54 #include <dev/isa/isadmavar.h> 55 56 #include <dev/isa/sbreg.h> 57 #include <dev/isa/sbvar.h> 58 #include <dev/isa/sbdspvar.h> 59 60 struct sb_softc { 61 struct device sc_dev; /* base device */ 62 struct isadev sc_id; /* ISA device */ 63 void *sc_ih; /* interrupt vectoring */ 64 65 struct sbdsp_softc sc_sbdsp; 66 }; 67 68 struct cfdriver sb_cd = { 69 NULL, "sb", DV_DULL 70 }; 71 72 struct audio_device sb_device = { 73 "SoundBlaster", 74 "x", 75 "sb" 76 }; 77 78 int sbopen __P((dev_t, int)); 79 int sb_getdev __P((void *, struct audio_device *)); 80 81 /* 82 * Define our interface to the higher level audio driver. 83 */ 84 85 struct audio_hw_if sb_hw_if = { 86 sbopen, 87 sbdsp_close, 88 NULL, 89 sbdsp_set_in_sr, 90 sbdsp_get_in_sr, 91 sbdsp_set_out_sr, 92 sbdsp_get_out_sr, 93 sbdsp_query_encoding, 94 sbdsp_set_format, 95 sbdsp_get_encoding, 96 sbdsp_get_precision, 97 sbdsp_set_channels, 98 sbdsp_get_channels, 99 sbdsp_round_blocksize, 100 sbdsp_set_out_port, 101 sbdsp_get_out_port, 102 sbdsp_set_in_port, 103 sbdsp_get_in_port, 104 sbdsp_commit_settings, 105 mulaw_expand, 106 mulaw_compress, 107 sbdsp_dma_output, 108 sbdsp_dma_input, 109 sbdsp_haltdma, 110 sbdsp_haltdma, 111 sbdsp_contdma, 112 sbdsp_contdma, 113 sbdsp_speaker_ctl, 114 sb_getdev, 115 sbdsp_setfd, 116 sbdsp_mixer_set_port, 117 sbdsp_mixer_get_port, 118 sbdsp_mixer_query_devinfo, 119 0, /* not full-duplex */ 120 0 121 }; 122 123 /* 124 * Probe / attach routines. 125 */ 126 127 128 int 129 sbmatch(sc) 130 struct sbdsp_softc *sc; 131 { 132 static u_char drq_conf[8] = { 133 0x01, 0x02, -1, 0x08, -1, 0x20, 0x40, 0x80 134 }; 135 136 static u_char irq_conf[11] = { 137 -1, -1, 0x01, -1, -1, 0x02, -1, 0x04, -1, 0x01, 0x08 138 }; 139 140 if (sbdsp_probe(sc) == 0) 141 return 0; 142 143 /* 144 * Cannot auto-discover DMA channel. 145 */ 146 if (ISSBPROCLASS(sc)) { 147 if (!SBP_DRQ_VALID(sc->sc_drq8)) { 148 printf("%s: configured dma chan %d invalid\n", 149 sc->sc_dev.dv_xname, sc->sc_drq8); 150 return 0; 151 } 152 } else { 153 if (!SB_DRQ_VALID(sc->sc_drq8)) { 154 printf("%s: configured dma chan %d invalid\n", 155 sc->sc_dev.dv_xname, sc->sc_drq8); 156 return 0; 157 } 158 } 159 160 if (ISSB16CLASS(sc)) { 161 if (sc->sc_drq16 == -1) 162 sc->sc_drq16 = sc->sc_drq8; 163 if (!SB16_DRQ_VALID(sc->sc_drq16)) { 164 printf("%s: configured dma chan %d invalid\n", 165 sc->sc_dev.dv_xname, sc->sc_drq16); 166 return 0; 167 } 168 } else 169 sc->sc_drq16 = sc->sc_drq8; 170 171 #ifdef NEWCONFIG 172 /* 173 * If the IRQ wasn't compiled in, auto-detect it. 174 */ 175 if (sc->sc_irq == IRQUNK) { 176 sc->sc_irq = isa_discoverintr(sbforceintr, sc); 177 sbdsp_reset(sc); 178 if (ISSBPROCLASS(sc)) { 179 if (!SBP_IRQ_VALID(sc->sc_irq)) { 180 printf("%s: couldn't auto-detect interrupt\n", 181 sc->sc_dev.dv_xname); 182 return 0; 183 } 184 } 185 else { 186 if (!SB_IRQ_VALID(sc->sc_irq)) { 187 printf("%s: couldn't auto-detect interrupt\n"); 188 sc->sc_dev.dv_xname); 189 return 0; 190 } 191 } 192 } else 193 #endif 194 if (ISSBPROCLASS(sc)) { 195 if (!SBP_IRQ_VALID(sc->sc_irq)) { 196 printf("%s: configured irq %d invalid\n", 197 sc->sc_dev.dv_xname, sc->sc_irq); 198 return 0; 199 } 200 } else { 201 if (!SB_IRQ_VALID(sc->sc_irq)) { 202 printf("%s: configured irq %d invalid\n", 203 sc->sc_dev.dv_xname, sc->sc_irq); 204 return 0; 205 } 206 } 207 208 if (ISSB16CLASS(sc)) { 209 #if 0 210 printf("%s: old drq conf %02x\n", sc->sc_dev.dv_xname, 211 sbdsp_mix_read(sc, SBP_SET_DRQ)); 212 printf("%s: try drq conf %02x\n", sc->sc_dev.dv_xname, 213 drq_conf[sc->sc_drq16] | drq_conf[sc->sc_drq8]); 214 #endif 215 sbdsp_mix_write(sc, SBP_SET_DRQ, 216 drq_conf[sc->sc_drq16] | drq_conf[sc->sc_drq8]); 217 #if 0 218 printf("%s: new drq conf %02x\n", sc->sc_dev.dv_xname, 219 sbdsp_mix_read(sc, SBP_SET_DRQ)); 220 #endif 221 222 #if 0 223 printf("%s: old irq conf %02x\n", sc->sc_dev.dv_xname, 224 sbdsp_mix_read(sc, SBP_SET_IRQ)); 225 printf("%s: try irq conf %02x\n", sc->sc_dev.dv_xname, 226 irq_conf[sc->sc_irq]); 227 #endif 228 sbdsp_mix_write(sc, SBP_SET_IRQ, 229 irq_conf[sc->sc_irq]); 230 #if 0 231 printf("%s: new irq conf %02x\n", sc->sc_dev.dv_xname, 232 sbdsp_mix_read(sc, SBP_SET_IRQ)); 233 #endif 234 } 235 236 return 1; 237 } 238 239 240 void 241 sbattach(sc) 242 struct sbdsp_softc *sc; 243 { 244 int error; 245 246 sc->sc_ih = isa_intr_establish(sc->sc_ic, sc->sc_irq, IST_EDGE, 247 IPL_AUDIO, sbdsp_intr, sc); 248 249 sbdsp_attach(sc); 250 251 if ((error = audio_hardware_attach(&sb_hw_if, sc)) != 0) 252 printf("%s: could not attach to audio device driver (%d)\n", 253 sc->sc_dev.dv_xname, error); 254 } 255 256 #ifdef NEWCONFIG 257 void 258 sbforceintr(aux) 259 void *aux; 260 { 261 static char dmabuf; 262 struct sbdsp_softc *sc = aux; 263 264 /* 265 * Set up a DMA read of one byte. 266 * XXX Note that at this point we haven't called 267 * at_setup_dmachan(). This is okay because it just 268 * allocates a buffer in case it needs to make a copy, 269 * and it won't need to make a copy for a 1 byte buffer. 270 * (I think that calling at_setup_dmachan() should be optional; 271 * if you don't call it, it will be called the first time 272 * it is needed (and you pay the latency). Also, you might 273 * never need the buffer anyway.) 274 */ 275 at_dma(DMAMODE_READ, &dmabuf, 1, sc->sc_drq8); 276 if (sbdsp_wdsp(sc, SB_DSP_RDMA) == 0) { 277 (void)sbdsp_wdsp(sc, 0); 278 (void)sbdsp_wdsp(sc, 0); 279 } 280 } 281 #endif 282 283 284 /* 285 * Various routines to interface to higher level audio driver 286 */ 287 288 int 289 sbopen(dev, flags) 290 dev_t dev; 291 int flags; 292 { 293 struct sbdsp_softc *sc; 294 int unit = AUDIOUNIT(dev); 295 296 if (unit >= sb_cd.cd_ndevs) 297 return ENODEV; 298 299 sc = sb_cd.cd_devs[unit]; 300 if (!sc) 301 return ENXIO; 302 303 return sbdsp_open(sc, dev, flags); 304 } 305 306 int 307 sb_getdev(addr, retp) 308 void *addr; 309 struct audio_device *retp; 310 { 311 struct sbdsp_softc *sc = addr; 312 313 if (sc->sc_model & MODEL_JAZZ16) 314 strncpy(retp->name, "MV Jazz16", sizeof(retp->name)); 315 else 316 strncpy(retp->name, "SoundBlaster", sizeof(retp->name)); 317 sprintf(retp->version, "%d.%02d", 318 SBVER_MAJOR(sc->sc_model), 319 SBVER_MINOR(sc->sc_model)); 320 strncpy(retp->config, "sb", sizeof(retp->config)); 321 322 return 0; 323 } 324
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