1 /* $NetBSD: cs428x.c,v 1.7 2004/07/09 01:02:32 mycroft 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 1.7 2004/07/09 01:02:32 mycroft 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 } 75 76 int 77 cs428x_round_blocksize(void *addr, int blk) 78 { 79 struct cs428x_softc *sc; 80 int retval; 81 82 DPRINTFN(5,("cs428x_round_blocksize blk=%d -> ", blk)); 83 84 sc = addr; 85 if (blk < sc->hw_blocksize) 86 retval = sc->hw_blocksize; 87 else 88 retval = blk & -(sc->hw_blocksize); 89 90 DPRINTFN(5,("%d\n", retval)); 91 92 return retval; 93 } 94 95 int 96 cs428x_mixer_set_port(void *addr, mixer_ctrl_t *cp) 97 { 98 struct cs428x_softc *sc; 99 int val; 100 101 sc = addr; 102 val = sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp); 103 DPRINTFN(3,("mixer_set_port: val=%d\n", val)); 104 return (val); 105 } 106 107 int 108 cs428x_mixer_get_port(void *addr, mixer_ctrl_t *cp) 109 { 110 struct cs428x_softc *sc; 111 112 sc = addr; 113 return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp)); 114 } 115 116 int 117 cs428x_query_devinfo(void *addr, mixer_devinfo_t *dip) 118 { 119 struct cs428x_softc *sc; 120 121 sc = addr; 122 return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip)); 123 } 124 125 void * 126 cs428x_malloc(void *addr, int direction, size_t size, 127 struct malloc_type *pool, int flags) 128 { 129 struct cs428x_softc *sc; 130 struct cs428x_dma *p; 131 int error; 132 133 sc = addr; 134 135 p = malloc(sizeof(*p), pool, flags); 136 if (p == NULL) 137 return 0; 138 139 error = cs428x_allocmem(sc, size, pool, flags, p); 140 141 if (error) { 142 free(p, pool); 143 return 0; 144 } 145 146 p->next = sc->sc_dmas; 147 sc->sc_dmas = p; 148 return BUFADDR(p); 149 } 150 151 void 152 cs428x_free(void *addr, void *ptr, struct malloc_type *pool) 153 { 154 struct cs428x_softc *sc; 155 struct cs428x_dma **pp, *p; 156 157 sc = addr; 158 for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) { 159 if (BUFADDR(p) == ptr) { 160 bus_dmamap_unload(sc->sc_dmatag, p->map); 161 bus_dmamap_destroy(sc->sc_dmatag, p->map); 162 bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); 163 bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); 164 free(p->dum, pool); 165 *pp = p->next; 166 free(p, pool); 167 return; 168 } 169 } 170 } 171 172 size_t 173 cs428x_round_buffersize(void *addr, int direction, size_t size) 174 { 175 /* The real DMA buffersize are 4KB for CS4280 176 * and 64kB/MAX_CHANNELS for CS4281. 177 * But they are too small for high quality audio, 178 * let the upper layer(audio) use a larger buffer. 179 * (originally suggested by Lennart Augustsson.) 180 */ 181 return size; 182 } 183 184 paddr_t 185 cs428x_mappage(void *addr, void *mem, off_t off, int prot) 186 { 187 struct cs428x_softc *sc; 188 struct cs428x_dma *p; 189 190 sc = addr; 191 192 if (off < 0) 193 return -1; 194 195 for (p = sc->sc_dmas; p && BUFADDR(p) != mem; p = p->next) 196 ; 197 198 if (p == NULL) { 199 DPRINTF(("cs428x_mappage: bad buffer address\n")); 200 return -1; 201 } 202 203 return (bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs, 204 off, prot, BUS_DMA_WAITOK)); 205 } 206 207 int 208 cs428x_get_props(void *addr) 209 { 210 int retval; 211 212 retval = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX; 213 #ifdef MMAP_READY 214 /* How can I mmap ? */ 215 retval |= AUDIO_PROP_MMAP; 216 #endif 217 return retval; 218 } 219 220 /* AC97 */ 221 int 222 cs428x_attach_codec(void *addr, struct ac97_codec_if *codec_if) 223 { 224 struct cs428x_softc *sc; 225 226 DPRINTF(("cs428x_attach_codec:\n")); 227 sc = addr; 228 sc->codec_if = codec_if; 229 return 0; 230 } 231 232 int 233 cs428x_read_codec(void *addr, u_int8_t ac97_addr, u_int16_t *ac97_data) 234 { 235 struct cs428x_softc *sc; 236 u_int32_t acctl; 237 int n; 238 239 sc = addr; 240 241 DPRINTFN(5,("read_codec: add=0x%02x ", ac97_addr)); 242 /* 243 * Make sure that there is not data sitting around from a preivous 244 * uncompleted access. 245 */ 246 BA0READ4(sc, CS428X_ACSDA); 247 248 /* Set up AC97 control registers. */ 249 BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); 250 BA0WRITE4(sc, CS428X_ACCDA, 0); 251 252 acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_CRW | ACCTL_DCV; 253 if (sc->type == TYPE_CS4280) 254 acctl |= ACCTL_RSTN; 255 BA0WRITE4(sc, CS428X_ACCTL, acctl); 256 257 if (cs428x_src_wait(sc) < 0) { 258 printf("%s: AC97 read prob. (DCV!=0) for add=0x%0x\n", 259 sc->sc_dev.dv_xname, ac97_addr); 260 return 1; 261 } 262 263 /* wait for valid status bit is active */ 264 n = 0; 265 while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_VSTS) == 0) { 266 delay(1); 267 while (++n > 1000) { 268 printf("%s: AC97 read fail (VSTS==0) for add=0x%0x\n", 269 sc->sc_dev.dv_xname, ac97_addr); 270 return 1; 271 } 272 } 273 *ac97_data = BA0READ4(sc, CS428X_ACSDA); 274 DPRINTFN(5,("data=0x%04x\n", *ac97_data)); 275 return 0; 276 } 277 278 int 279 cs428x_write_codec(void *addr, u_int8_t ac97_addr, u_int16_t ac97_data) 280 { 281 struct cs428x_softc *sc; 282 u_int32_t acctl; 283 284 sc = addr; 285 286 DPRINTFN(5,("write_codec: add=0x%02x data=0x%04x\n", ac97_addr, ac97_data)); 287 BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); 288 BA0WRITE4(sc, CS428X_ACCDA, ac97_data); 289 290 acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_DCV; 291 if (sc->type == TYPE_CS4280) 292 acctl |= ACCTL_RSTN; 293 BA0WRITE4(sc, CS428X_ACCTL, acctl); 294 295 if (cs428x_src_wait(sc) < 0) { 296 printf("%s: AC97 write fail (DCV!=0) for add=0x%02x data=" 297 "0x%04x\n", sc->sc_dev.dv_xname, ac97_addr, ac97_data); 298 return 1; 299 } 300 return 0; 301 } 302 303 /* Internal functions */ 304 int 305 cs428x_allocmem(struct cs428x_softc *sc, 306 size_t size, struct malloc_type *pool, int flags, 307 struct cs428x_dma *p) 308 { 309 int error; 310 size_t align; 311 312 align = sc->dma_align; 313 p->size = sc->dma_size; 314 /* allocate memory for upper audio driver */ 315 p->dum = malloc(size, pool, flags); 316 if (p->dum == NULL) 317 return 1; 318 319 error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0, 320 p->segs, sizeof(p->segs)/sizeof(p->segs[0]), 321 &p->nsegs, BUS_DMA_NOWAIT); 322 if (error) { 323 printf("%s: unable to allocate DMA. error=%d\n", 324 sc->sc_dev.dv_xname, error); 325 goto allfree; 326 } 327 328 error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size, 329 &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); 330 if (error) { 331 printf("%s: unable to map DMA, error=%d\n", 332 sc->sc_dev.dv_xname, error); 333 goto free; 334 } 335 336 error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size, 337 0, BUS_DMA_NOWAIT, &p->map); 338 if (error) { 339 printf("%s: unable to create DMA map, error=%d\n", 340 sc->sc_dev.dv_xname, error); 341 goto unmap; 342 } 343 344 error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL, 345 BUS_DMA_NOWAIT); 346 if (error) { 347 printf("%s: unable to load DMA map, error=%d\n", 348 sc->sc_dev.dv_xname, error); 349 goto destroy; 350 } 351 return 0; 352 353 destroy: 354 bus_dmamap_destroy(sc->sc_dmatag, p->map); 355 unmap: 356 bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); 357 free: 358 bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); 359 allfree: 360 free(p->dum, pool); 361 362 return error; 363 } 364 365 int 366 cs428x_src_wait(sc) 367 struct cs428x_softc *sc; 368 { 369 int n; 370 371 n = 0; 372 while ((BA0READ4(sc, CS428X_ACCTL) & ACCTL_DCV)) { 373 delay(1000); 374 while (++n > 1000) { 375 printf("cs428x_src_wait: 0x%08x\n", 376 BA0READ4(sc, CS428X_ACCTL)); 377 return -1; 378 } 379 } 380 return 0; 381 } 382