| 1 | /* $NetBSD: cs428x.c,v 1.17 2012/10/27 17:18:31 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 1.17 2012/10/27 17:18:31 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 | if (p == NULL) |
| 124 | return 0; |
| 125 | |
| 126 | error = cs428x_allocmem(sc, size, p); |
| 127 | |
| 128 | if (error) { |
| 129 | kmem_free(p, sizeof(*p)); |
| 130 | return 0; |
| 131 | } |
| 132 | |
| 133 | p->next = sc->sc_dmas; |
| 134 | sc->sc_dmas = p; |
| 135 | return BUFADDR(p); |
| 136 | } |
| 137 | |
| 138 | void |
| 139 | cs428x_free(void *addr, void *ptr, size_t size) |
| 140 | { |
| 141 | struct cs428x_softc *sc; |
| 142 | struct cs428x_dma **pp, *p; |
| 143 | |
| 144 | sc = addr; |
| 145 | for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) { |
| 146 | if (BUFADDR(p) == ptr) { |
| 147 | bus_dmamap_unload(sc->sc_dmatag, p->map); |
| 148 | bus_dmamap_destroy(sc->sc_dmatag, p->map); |
| 149 | bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); |
| 150 | bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); |
| 151 | kmem_free(p->dum, p->size); |
| 152 | *pp = p->next; |
| 153 | kmem_free(p, sizeof(*p)); |
| 154 | return; |
| 155 | } |
| 156 | } |
| 157 | } |
| 158 | |
| 159 | size_t |
| 160 | cs428x_round_buffersize(void *addr, int direction, |
| 161 | size_t size) |
| 162 | { |
| 163 | /* The real DMA buffersize are 4KB for CS4280 |
| 164 | * and 64kB/MAX_CHANNELS for CS4281. |
| 165 | * But they are too small for high quality audio, |
| 166 | * let the upper layer(audio) use a larger buffer. |
| 167 | * (originally suggested by Lennart Augustsson.) |
| 168 | */ |
| 169 | return size; |
| 170 | } |
| 171 | |
| 172 | paddr_t |
| 173 | cs428x_mappage(void *addr, void *mem, off_t off, int prot) |
| 174 | { |
| 175 | struct cs428x_softc *sc; |
| 176 | struct cs428x_dma *p; |
| 177 | |
| 178 | sc = addr; |
| 179 | |
| 180 | if (off < 0) |
| 181 | return -1; |
| 182 | |
| 183 | for (p = sc->sc_dmas; p && BUFADDR(p) != mem; p = p->next) |
| 184 | continue; |
| 185 | |
| 186 | if (p == NULL) { |
| 187 | DPRINTF(("cs428x_mappage: bad buffer address\n" )); |
| 188 | return -1; |
| 189 | } |
| 190 | |
| 191 | return (bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs, |
| 192 | off, prot, BUS_DMA_WAITOK)); |
| 193 | } |
| 194 | |
| 195 | int |
| 196 | cs428x_get_props(void *addr) |
| 197 | { |
| 198 | int retval; |
| 199 | |
| 200 | retval = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX; |
| 201 | #ifdef MMAP_READY |
| 202 | /* How can I mmap ? */ |
| 203 | retval |= AUDIO_PROP_MMAP; |
| 204 | #endif |
| 205 | return retval; |
| 206 | } |
| 207 | |
| 208 | /* AC97 */ |
| 209 | int |
| 210 | cs428x_attach_codec(void *addr, struct ac97_codec_if *codec_if) |
| 211 | { |
| 212 | struct cs428x_softc *sc; |
| 213 | |
| 214 | DPRINTF(("cs428x_attach_codec:\n" )); |
| 215 | sc = addr; |
| 216 | sc->codec_if = codec_if; |
| 217 | return 0; |
| 218 | } |
| 219 | |
| 220 | int |
| 221 | cs428x_read_codec(void *addr, uint8_t ac97_addr, uint16_t *ac97_data) |
| 222 | { |
| 223 | struct cs428x_softc *sc; |
| 224 | uint32_t acctl; |
| 225 | int n; |
| 226 | |
| 227 | sc = addr; |
| 228 | |
| 229 | DPRINTFN(5,("read_codec: add=0x%02x " , ac97_addr)); |
| 230 | /* |
| 231 | * Make sure that there is not data sitting around from a previous |
| 232 | * uncompleted access. |
| 233 | */ |
| 234 | BA0READ4(sc, CS428X_ACSDA); |
| 235 | |
| 236 | /* Set up AC97 control registers. */ |
| 237 | BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); |
| 238 | BA0WRITE4(sc, CS428X_ACCDA, 0); |
| 239 | |
| 240 | acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_CRW | ACCTL_DCV; |
| 241 | if (sc->type == TYPE_CS4280) |
| 242 | acctl |= ACCTL_RSTN; |
| 243 | BA0WRITE4(sc, CS428X_ACCTL, acctl); |
| 244 | |
| 245 | if (cs428x_src_wait(sc) < 0) { |
| 246 | printf("%s: AC97 read prob. (DCV!=0) for add=0x%0x\n" , |
| 247 | device_xname(sc->sc_dev), ac97_addr); |
| 248 | return 1; |
| 249 | } |
| 250 | |
| 251 | /* wait for valid status bit is active */ |
| 252 | n = 0; |
| 253 | while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_VSTS) == 0) { |
| 254 | delay(1); |
| 255 | while (++n > 1000) { |
| 256 | printf("%s: AC97 read fail (VSTS==0) for add=0x%0x\n" , |
| 257 | device_xname(sc->sc_dev), ac97_addr); |
| 258 | return 1; |
| 259 | } |
| 260 | } |
| 261 | *ac97_data = BA0READ4(sc, CS428X_ACSDA); |
| 262 | DPRINTFN(5,("data=0x%04x\n" , *ac97_data)); |
| 263 | return 0; |
| 264 | } |
| 265 | |
| 266 | int |
| 267 | cs428x_write_codec(void *addr, uint8_t ac97_addr, uint16_t ac97_data) |
| 268 | { |
| 269 | struct cs428x_softc *sc; |
| 270 | uint32_t acctl; |
| 271 | |
| 272 | sc = addr; |
| 273 | |
| 274 | DPRINTFN(5,("write_codec: add=0x%02x data=0x%04x\n" , ac97_addr, ac97_data)); |
| 275 | BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); |
| 276 | BA0WRITE4(sc, CS428X_ACCDA, ac97_data); |
| 277 | |
| 278 | acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_DCV; |
| 279 | if (sc->type == TYPE_CS4280) |
| 280 | acctl |= ACCTL_RSTN; |
| 281 | BA0WRITE4(sc, CS428X_ACCTL, acctl); |
| 282 | |
| 283 | if (cs428x_src_wait(sc) < 0) { |
| 284 | printf("%s: AC97 write fail (DCV!=0) for add=0x%02x data=" |
| 285 | "0x%04x\n" , device_xname(sc->sc_dev), ac97_addr, ac97_data); |
| 286 | return 1; |
| 287 | } |
| 288 | return 0; |
| 289 | } |
| 290 | |
| 291 | /* Internal functions */ |
| 292 | int |
| 293 | cs428x_allocmem(struct cs428x_softc *sc, size_t size, struct cs428x_dma *p) |
| 294 | { |
| 295 | int error; |
| 296 | size_t align; |
| 297 | |
| 298 | align = sc->dma_align; |
| 299 | p->size = sc->dma_size; |
| 300 | /* allocate memory for upper audio driver */ |
| 301 | p->dum = kmem_alloc(size, KM_SLEEP); |
| 302 | if (p->dum == NULL) |
| 303 | return 1; |
| 304 | |
| 305 | error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0, |
| 306 | p->segs, sizeof(p->segs)/sizeof(p->segs[0]), |
| 307 | &p->nsegs, BUS_DMA_WAITOK); |
| 308 | if (error) { |
| 309 | aprint_error_dev(sc->sc_dev, "unable to allocate DMA. error=%d\n" , |
| 310 | error); |
| 311 | goto allfree; |
| 312 | } |
| 313 | |
| 314 | error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size, |
| 315 | &p->addr, BUS_DMA_WAITOK|BUS_DMA_COHERENT); |
| 316 | if (error) { |
| 317 | aprint_error_dev(sc->sc_dev, "unable to map DMA, error=%d\n" , |
| 318 | error); |
| 319 | goto free; |
| 320 | } |
| 321 | |
| 322 | error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size, |
| 323 | 0, BUS_DMA_WAITOK, &p->map); |
| 324 | if (error) { |
| 325 | aprint_error_dev(sc->sc_dev, "unable to create DMA map, error=%d\n" , |
| 326 | error); |
| 327 | goto unmap; |
| 328 | } |
| 329 | |
| 330 | error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL, |
| 331 | BUS_DMA_WAITOK); |
| 332 | if (error) { |
| 333 | aprint_error_dev(sc->sc_dev, "unable to load DMA map, error=%d\n" , |
| 334 | error); |
| 335 | goto destroy; |
| 336 | } |
| 337 | return 0; |
| 338 | |
| 339 | destroy: |
| 340 | bus_dmamap_destroy(sc->sc_dmatag, p->map); |
| 341 | unmap: |
| 342 | bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); |
| 343 | free: |
| 344 | bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); |
| 345 | allfree: |
| 346 | kmem_free(p->dum, size); |
| 347 | |
| 348 | return error; |
| 349 | } |
| 350 | |
| 351 | int |
| 352 | cs428x_src_wait(struct cs428x_softc *sc) |
| 353 | { |
| 354 | int n; |
| 355 | |
| 356 | n = 0; |
| 357 | while ((BA0READ4(sc, CS428X_ACCTL) & ACCTL_DCV)) { |
| 358 | delay(1000); |
| 359 | while (++n > 1000) { |
| 360 | printf("cs428x_src_wait: 0x%08x\n" , |
| 361 | BA0READ4(sc, CS428X_ACCTL)); |
| 362 | return -1; |
| 363 | } |
| 364 | } |
| 365 | return 0; |
| 366 | } |
| 367 | |
| 368 | void |
| 369 | cs428x_get_locks(void *addr, kmutex_t **intr, kmutex_t **thread) |
| 370 | { |
| 371 | struct cs428x_softc *sc; |
| 372 | |
| 373 | sc = addr; |
| 374 | *intr = &sc->sc_intr_lock; |
| 375 | *thread = &sc->sc_lock; |
| 376 | } |
| 377 | |