cs428x.c revision 1.18
1 /* $NetBSD: cs428x.c,v 1.18 2017/06/01 02:45:11 chs 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 1.18 2017/06/01 02:45:11 chs Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/kmem.h> 42 #include <sys/device.h> 43 #include <sys/audioio.h> 44 #include <sys/bus.h> 45 46 #include <dev/audio_if.h> 47 #include <dev/midi_if.h> 48 #include <dev/mulaw.h> 49 #include <dev/auconv.h> 50 51 #include <dev/ic/ac97reg.h> 52 #include <dev/ic/ac97var.h> 53 54 #include <dev/pci/pcidevs.h> 55 #include <dev/pci/pcivar.h> 56 #include <dev/pci/cs428xreg.h> 57 #include <dev/pci/cs428x.h> 58 59 #if defined(CS4280_DEBUG) || defined(CS4281_DEBUG) 60 int cs428x_debug = 0; 61 #endif 62 63 int 64 cs428x_round_blocksize(void *addr, int blk, 65 int mode, const audio_params_t *param) 66 { 67 struct cs428x_softc *sc; 68 int retval; 69 70 DPRINTFN(5,("cs428x_round_blocksize blk=%d -> ", blk)); 71 72 sc = addr; 73 if (blk < sc->hw_blocksize) 74 retval = sc->hw_blocksize; 75 else 76 retval = blk & -(sc->hw_blocksize); 77 78 DPRINTFN(5,("%d\n", retval)); 79 80 return retval; 81 } 82 83 int 84 cs428x_mixer_set_port(void *addr, mixer_ctrl_t *cp) 85 { 86 struct cs428x_softc *sc; 87 int val; 88 89 sc = addr; 90 val = sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp); 91 DPRINTFN(3,("mixer_set_port: val=%d\n", val)); 92 return (val); 93 } 94 95 int 96 cs428x_mixer_get_port(void *addr, mixer_ctrl_t *cp) 97 { 98 struct cs428x_softc *sc; 99 100 sc = addr; 101 return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp)); 102 } 103 104 int 105 cs428x_query_devinfo(void *addr, mixer_devinfo_t *dip) 106 { 107 struct cs428x_softc *sc; 108 109 sc = addr; 110 return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip)); 111 } 112 113 void * 114 cs428x_malloc(void *addr, int direction, size_t size) 115 { 116 struct cs428x_softc *sc; 117 struct cs428x_dma *p; 118 int error; 119 120 sc = addr; 121 122 p = kmem_alloc(sizeof(*p), KM_SLEEP); 123 error = cs428x_allocmem(sc, size, p); 124 if (error) { 125 kmem_free(p, sizeof(*p)); 126 return 0; 127 } 128 129 p->next = sc->sc_dmas; 130 sc->sc_dmas = p; 131 return BUFADDR(p); 132 } 133 134 void 135 cs428x_free(void *addr, void *ptr, size_t size) 136 { 137 struct cs428x_softc *sc; 138 struct cs428x_dma **pp, *p; 139 140 sc = addr; 141 for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) { 142 if (BUFADDR(p) == ptr) { 143 bus_dmamap_unload(sc->sc_dmatag, p->map); 144 bus_dmamap_destroy(sc->sc_dmatag, p->map); 145 bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); 146 bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); 147 kmem_free(p->dum, p->size); 148 *pp = p->next; 149 kmem_free(p, sizeof(*p)); 150 return; 151 } 152 } 153 } 154 155 size_t 156 cs428x_round_buffersize(void *addr, int direction, 157 size_t size) 158 { 159 /* The real DMA buffersize are 4KB for CS4280 160 * and 64kB/MAX_CHANNELS for CS4281. 161 * But they are too small for high quality audio, 162 * let the upper layer(audio) use a larger buffer. 163 * (originally suggested by Lennart Augustsson.) 164 */ 165 return size; 166 } 167 168 paddr_t 169 cs428x_mappage(void *addr, void *mem, off_t off, int prot) 170 { 171 struct cs428x_softc *sc; 172 struct cs428x_dma *p; 173 174 sc = addr; 175 176 if (off < 0) 177 return -1; 178 179 for (p = sc->sc_dmas; p && BUFADDR(p) != mem; p = p->next) 180 continue; 181 182 if (p == NULL) { 183 DPRINTF(("cs428x_mappage: bad buffer address\n")); 184 return -1; 185 } 186 187 return (bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs, 188 off, prot, BUS_DMA_WAITOK)); 189 } 190 191 int 192 cs428x_get_props(void *addr) 193 { 194 int retval; 195 196 retval = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX; 197 #ifdef MMAP_READY 198 /* How can I mmap ? */ 199 retval |= AUDIO_PROP_MMAP; 200 #endif 201 return retval; 202 } 203 204 /* AC97 */ 205 int 206 cs428x_attach_codec(void *addr, struct ac97_codec_if *codec_if) 207 { 208 struct cs428x_softc *sc; 209 210 DPRINTF(("cs428x_attach_codec:\n")); 211 sc = addr; 212 sc->codec_if = codec_if; 213 return 0; 214 } 215 216 int 217 cs428x_read_codec(void *addr, uint8_t ac97_addr, uint16_t *ac97_data) 218 { 219 struct cs428x_softc *sc; 220 uint32_t acctl; 221 int n; 222 223 sc = addr; 224 225 DPRINTFN(5,("read_codec: add=0x%02x ", ac97_addr)); 226 /* 227 * Make sure that there is not data sitting around from a previous 228 * uncompleted access. 229 */ 230 BA0READ4(sc, CS428X_ACSDA); 231 232 /* Set up AC97 control registers. */ 233 BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); 234 BA0WRITE4(sc, CS428X_ACCDA, 0); 235 236 acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_CRW | ACCTL_DCV; 237 if (sc->type == TYPE_CS4280) 238 acctl |= ACCTL_RSTN; 239 BA0WRITE4(sc, CS428X_ACCTL, acctl); 240 241 if (cs428x_src_wait(sc) < 0) { 242 printf("%s: AC97 read prob. (DCV!=0) for add=0x%0x\n", 243 device_xname(sc->sc_dev), ac97_addr); 244 return 1; 245 } 246 247 /* wait for valid status bit is active */ 248 n = 0; 249 while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_VSTS) == 0) { 250 delay(1); 251 while (++n > 1000) { 252 printf("%s: AC97 read fail (VSTS==0) for add=0x%0x\n", 253 device_xname(sc->sc_dev), ac97_addr); 254 return 1; 255 } 256 } 257 *ac97_data = BA0READ4(sc, CS428X_ACSDA); 258 DPRINTFN(5,("data=0x%04x\n", *ac97_data)); 259 return 0; 260 } 261 262 int 263 cs428x_write_codec(void *addr, uint8_t ac97_addr, uint16_t ac97_data) 264 { 265 struct cs428x_softc *sc; 266 uint32_t acctl; 267 268 sc = addr; 269 270 DPRINTFN(5,("write_codec: add=0x%02x data=0x%04x\n", ac97_addr, ac97_data)); 271 BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); 272 BA0WRITE4(sc, CS428X_ACCDA, ac97_data); 273 274 acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_DCV; 275 if (sc->type == TYPE_CS4280) 276 acctl |= ACCTL_RSTN; 277 BA0WRITE4(sc, CS428X_ACCTL, acctl); 278 279 if (cs428x_src_wait(sc) < 0) { 280 printf("%s: AC97 write fail (DCV!=0) for add=0x%02x data=" 281 "0x%04x\n", device_xname(sc->sc_dev), ac97_addr, ac97_data); 282 return 1; 283 } 284 return 0; 285 } 286 287 /* Internal functions */ 288 int 289 cs428x_allocmem(struct cs428x_softc *sc, size_t size, struct cs428x_dma *p) 290 { 291 int error; 292 size_t align; 293 294 align = sc->dma_align; 295 p->size = sc->dma_size; 296 /* allocate memory for upper audio driver */ 297 p->dum = kmem_alloc(size, KM_SLEEP); 298 299 error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0, 300 p->segs, sizeof(p->segs)/sizeof(p->segs[0]), 301 &p->nsegs, BUS_DMA_WAITOK); 302 if (error) { 303 aprint_error_dev(sc->sc_dev, "unable to allocate DMA. error=%d\n", 304 error); 305 goto allfree; 306 } 307 308 error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size, 309 &p->addr, BUS_DMA_WAITOK|BUS_DMA_COHERENT); 310 if (error) { 311 aprint_error_dev(sc->sc_dev, "unable to map DMA, error=%d\n", 312 error); 313 goto free; 314 } 315 316 error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size, 317 0, BUS_DMA_WAITOK, &p->map); 318 if (error) { 319 aprint_error_dev(sc->sc_dev, "unable to create DMA map, error=%d\n", 320 error); 321 goto unmap; 322 } 323 324 error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL, 325 BUS_DMA_WAITOK); 326 if (error) { 327 aprint_error_dev(sc->sc_dev, "unable to load DMA map, error=%d\n", 328 error); 329 goto destroy; 330 } 331 return 0; 332 333 destroy: 334 bus_dmamap_destroy(sc->sc_dmatag, p->map); 335 unmap: 336 bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); 337 free: 338 bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); 339 allfree: 340 kmem_free(p->dum, size); 341 342 return error; 343 } 344 345 int 346 cs428x_src_wait(struct cs428x_softc *sc) 347 { 348 int n; 349 350 n = 0; 351 while ((BA0READ4(sc, CS428X_ACCTL) & ACCTL_DCV)) { 352 delay(1000); 353 while (++n > 1000) { 354 printf("cs428x_src_wait: 0x%08x\n", 355 BA0READ4(sc, CS428X_ACCTL)); 356 return -1; 357 } 358 } 359 return 0; 360 } 361 362 void 363 cs428x_get_locks(void *addr, kmutex_t **intr, kmutex_t **thread) 364 { 365 struct cs428x_softc *sc; 366 367 sc = addr; 368 *intr = &sc->sc_intr_lock; 369 *thread = &sc->sc_lock; 370 } 371
Indexes created Wed Oct 01 18:09:54 GMT 2025