cs428x.c revision 1.2.4.1
1 /* $NetBSD: cs428x.c,v 1.2.4.1 2002/01/10 19:56:30 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Tatoku Ogaito. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Tatoku Ogaito 17 * for the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* Common functions for CS4280 and CS4281 */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: cs428x.c,v 1.2.4.1 2002/01/10 19:56:30 thorpej Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/malloc.h> 42 #include <sys/device.h> 43 44 #include <dev/pci/pcidevs.h> 45 #include <dev/pci/pcivar.h> 46 47 #include <sys/audioio.h> 48 #include <dev/audio_if.h> 49 #include <dev/midi_if.h> 50 #include <dev/mulaw.h> 51 #include <dev/auconv.h> 52 53 #include <dev/ic/ac97reg.h> 54 #include <dev/ic/ac97var.h> 55 56 #include <machine/bus.h> 57 58 #include <dev/pci/cs428xreg.h> 59 #include <dev/pci/cs428x.h> 60 61 #if defined(CS4280_DEBUG) || defined(CS4281_DEBUG) 62 int cs428x_debug = 0; 63 #endif 64 65 int 66 cs428x_open(void *addr, int flags) 67 { 68 return 0; 69 } 70 71 void 72 cs428x_close(void *addr) 73 { 74 struct cs428x_softc *sc; 75 76 sc = addr; 77 78 (*sc->halt_output)(sc); 79 (*sc->halt_input)(sc); 80 81 sc->sc_pintr = 0; 82 sc->sc_rintr = 0; 83 } 84 85 int 86 cs428x_round_blocksize(void *addr, int blk) 87 { 88 struct cs428x_softc *sc; 89 int retval; 90 91 DPRINTFN(5,("cs428x_round_blocksize blk=%d -> ", blk)); 92 93 sc = addr; 94 if (blk < sc->hw_blocksize) 95 retval = sc->hw_blocksize; 96 else 97 retval = blk & -(sc->hw_blocksize); 98 99 DPRINTFN(5,("%d\n", retval)); 100 101 return retval; 102 } 103 104 int 105 cs428x_mixer_set_port(void *addr, mixer_ctrl_t *cp) 106 { 107 struct cs428x_softc *sc; 108 int val; 109 110 sc = addr; 111 val = sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp); 112 DPRINTFN(3,("mixer_set_port: val=%d\n", val)); 113 return (val); 114 } 115 116 int 117 cs428x_mixer_get_port(void *addr, mixer_ctrl_t *cp) 118 { 119 struct cs428x_softc *sc; 120 121 sc = addr; 122 return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp)); 123 } 124 125 int 126 cs428x_query_devinfo(void *addr, mixer_devinfo_t *dip) 127 { 128 struct cs428x_softc *sc; 129 130 sc = addr; 131 return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip)); 132 } 133 134 void * 135 cs428x_malloc(void *addr, int direction, size_t size, int pool, int flags) 136 { 137 struct cs428x_softc *sc; 138 struct cs428x_dma *p; 139 int error; 140 141 sc = addr; 142 143 p = malloc(sizeof(*p), pool, flags); 144 if (p == NULL) 145 return 0; 146 147 error = cs428x_allocmem(sc, size, pool, flags, p); 148 149 if (error) { 150 free(p, pool); 151 return 0; 152 } 153 154 p->next = sc->sc_dmas; 155 sc->sc_dmas = p; 156 return BUFADDR(p); 157 } 158 159 void 160 cs428x_free(void *addr, void *ptr, int pool) 161 { 162 struct cs428x_softc *sc; 163 struct cs428x_dma **pp, *p; 164 165 sc = addr; 166 for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) { 167 if (BUFADDR(p) == ptr) { 168 bus_dmamap_unload(sc->sc_dmatag, p->map); 169 bus_dmamap_destroy(sc->sc_dmatag, p->map); 170 bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); 171 bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); 172 free(p->dum, pool); 173 *pp = p->next; 174 free(p, pool); 175 return; 176 } 177 } 178 } 179 180 size_t 181 cs428x_round_buffersize(void *addr, int direction, size_t size) 182 { 183 /* The real dma buffersize are 4KB for CS4280 184 * and 64kB/MAX_CHANNELS for CS4281. 185 * But they are too small for high quality audio, 186 * let the upper layer(audio) use a larger buffer. 187 * (originally suggested by Lennart Augustsson.) 188 */ 189 return size; 190 } 191 192 paddr_t 193 cs428x_mappage(void *addr, void *mem, off_t off, int prot) 194 { 195 struct cs428x_softc *sc; 196 struct cs428x_dma *p; 197 198 sc = addr; 199 200 if (off < 0) 201 return -1; 202 203 for (p = sc->sc_dmas; p && BUFADDR(p) != mem; p = p->next) 204 ; 205 206 if (p == NULL) { 207 DPRINTF(("cs428x_mappage: bad buffer address\n")); 208 return -1; 209 } 210 211 return (bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs, 212 off, prot, BUS_DMA_WAITOK)); 213 } 214 215 int 216 cs428x_get_props(void *addr) 217 { 218 int retval; 219 220 retval = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX; 221 #ifdef MMAP_READY 222 /* How can I mmap ? */ 223 retval |= AUDIO_PROP_MMAP; 224 #endif 225 return retval; 226 } 227 228 /* AC97 */ 229 int 230 cs428x_attach_codec(void *addr, struct ac97_codec_if *codec_if) 231 { 232 struct cs428x_softc *sc; 233 234 DPRINTF(("cs428x_attach_codec:\n")); 235 sc = addr; 236 sc->codec_if = codec_if; 237 return 0; 238 } 239 240 int 241 cs428x_read_codec(void *addr, u_int8_t ac97_addr, u_int16_t *ac97_data) 242 { 243 struct cs428x_softc *sc; 244 u_int32_t acctl; 245 int n; 246 247 sc = addr; 248 249 DPRINTFN(5,("read_codec: add=0x%02x ", ac97_addr)); 250 /* 251 * Make sure that there is not data sitting around from a preivous 252 * uncompleted access. 253 */ 254 BA0READ4(sc, CS428X_ACSDA); 255 256 /* Set up AC97 control registers. */ 257 BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); 258 BA0WRITE4(sc, CS428X_ACCDA, 0); 259 260 acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_CRW | ACCTL_DCV; 261 if (sc->type == TYPE_CS4280) 262 acctl |= ACCTL_RSTN; 263 BA0WRITE4(sc, CS428X_ACCTL, acctl); 264 265 if (cs428x_src_wait(sc) < 0) { 266 printf("%s: AC97 read prob. (DCV!=0) for add=0x%0x\n", 267 sc->sc_dev.dv_xname, ac97_addr); 268 return 1; 269 } 270 271 /* wait for valid status bit is active */ 272 n = 0; 273 while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_VSTS) == 0) { 274 delay(1); 275 while (++n > 1000) { 276 printf("%s: AC97 read fail (VSTS==0) for add=0x%0x\n", 277 sc->sc_dev.dv_xname, ac97_addr); 278 return 1; 279 } 280 } 281 *ac97_data = BA0READ4(sc, CS428X_ACSDA); 282 DPRINTFN(5,("data=0x%04x\n", *ac97_data)); 283 return 0; 284 } 285 286 int 287 cs428x_write_codec(void *addr, u_int8_t ac97_addr, u_int16_t ac97_data) 288 { 289 struct cs428x_softc *sc; 290 u_int32_t acctl; 291 292 sc = addr; 293 294 DPRINTFN(5,("write_codec: add=0x%02x data=0x%04x\n", ac97_addr, ac97_data)); 295 BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); 296 BA0WRITE4(sc, CS428X_ACCDA, ac97_data); 297 298 acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_DCV; 299 if (sc->type == TYPE_CS4280) 300 acctl |= ACCTL_RSTN; 301 BA0WRITE4(sc, CS428X_ACCTL, acctl); 302 303 if (cs428x_src_wait(sc) < 0) { 304 printf("%s: AC97 write fail (DCV!=0) for add=0x%02x data=" 305 "0x%04x\n", sc->sc_dev.dv_xname, ac97_addr, ac97_data); 306 return 1; 307 } 308 return 0; 309 } 310 311 /* Internal functions */ 312 int 313 cs428x_allocmem(struct cs428x_softc *sc, 314 size_t size, int pool, int flags, 315 struct cs428x_dma *p) 316 { 317 int error; 318 size_t align; 319 320 align = sc->dma_align; 321 p->size = sc->dma_size; 322 /* allocate memory for upper audio driver */ 323 p->dum = malloc(size, pool, flags); 324 if (p->dum == NULL) 325 return 1; 326 327 error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0, 328 p->segs, sizeof(p->segs)/sizeof(p->segs[0]), 329 &p->nsegs, BUS_DMA_NOWAIT); 330 if (error) { 331 printf("%s: unable to allocate dma. error=%d\n", 332 sc->sc_dev.dv_xname, error); 333 goto allfree; 334 } 335 336 error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size, 337 &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 338 if (error) { 339 printf("%s: unable to map dma, error=%d\n", 340 sc->sc_dev.dv_xname, error); 341 goto free; 342 } 343 344 error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size, 345 0, BUS_DMA_NOWAIT, &p->map); 346 if (error) { 347 printf("%s: unable to create dma map, error=%d\n", 348 sc->sc_dev.dv_xname, error); 349 goto unmap; 350 } 351 352 error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL, 353 BUS_DMA_NOWAIT); 354 if (error) { 355 printf("%s: unable to load dma map, error=%d\n", 356 sc->sc_dev.dv_xname, error); 357 goto destroy; 358 } 359 return 0; 360 361 destroy: 362 bus_dmamap_destroy(sc->sc_dmatag, p->map); 363 unmap: 364 bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); 365 free: 366 bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); 367 allfree: 368 free(p->dum, pool); 369 370 return error; 371 } 372 373 int 374 cs428x_src_wait(sc) 375 struct cs428x_softc *sc; 376 { 377 int n; 378 379 n = 0; 380 while ((BA0READ4(sc, CS428X_ACCTL) & ACCTL_DCV)) { 381 delay(1000); 382 while (++n > 1000) { 383 printf("cs428x_src_wait: 0x%08x\n", 384 BA0READ4(sc, CS428X_ACCTL)); 385 return -1; 386 } 387 } 388 return 0; 389 } 390
Indexes created Wed Oct 01 18:09:54 GMT 2025