cs428x.c revision 1.18.14.1
1 /* $NetBSD: cs428x.c,v 1.18.14.1 2019/04/21 07:49:16 isaki 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 1.18.14.1 2019/04/21 07:49:16 isaki 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 int 169 cs428x_get_props(void *addr) 170 { 171 int retval; 172 173 retval = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX; 174 #ifdef MMAP_READY 175 /* How can I mmap ? */ 176 retval |= AUDIO_PROP_MMAP; 177 #endif 178 return retval; 179 } 180 181 /* AC97 */ 182 int 183 cs428x_attach_codec(void *addr, struct ac97_codec_if *codec_if) 184 { 185 struct cs428x_softc *sc; 186 187 DPRINTF(("cs428x_attach_codec:\n")); 188 sc = addr; 189 sc->codec_if = codec_if; 190 return 0; 191 } 192 193 int 194 cs428x_read_codec(void *addr, uint8_t ac97_addr, uint16_t *ac97_data) 195 { 196 struct cs428x_softc *sc; 197 uint32_t acctl; 198 int n; 199 200 sc = addr; 201 202 DPRINTFN(5,("read_codec: add=0x%02x ", ac97_addr)); 203 /* 204 * Make sure that there is not data sitting around from a previous 205 * uncompleted access. 206 */ 207 BA0READ4(sc, CS428X_ACSDA); 208 209 /* Set up AC97 control registers. */ 210 BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); 211 BA0WRITE4(sc, CS428X_ACCDA, 0); 212 213 acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_CRW | ACCTL_DCV; 214 if (sc->type == TYPE_CS4280) 215 acctl |= ACCTL_RSTN; 216 BA0WRITE4(sc, CS428X_ACCTL, acctl); 217 218 if (cs428x_src_wait(sc) < 0) { 219 printf("%s: AC97 read prob. (DCV!=0) for add=0x%0x\n", 220 device_xname(sc->sc_dev), ac97_addr); 221 return 1; 222 } 223 224 /* wait for valid status bit is active */ 225 n = 0; 226 while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_VSTS) == 0) { 227 delay(1); 228 while (++n > 1000) { 229 printf("%s: AC97 read fail (VSTS==0) for add=0x%0x\n", 230 device_xname(sc->sc_dev), ac97_addr); 231 return 1; 232 } 233 } 234 *ac97_data = BA0READ4(sc, CS428X_ACSDA); 235 DPRINTFN(5,("data=0x%04x\n", *ac97_data)); 236 return 0; 237 } 238 239 int 240 cs428x_write_codec(void *addr, uint8_t ac97_addr, uint16_t ac97_data) 241 { 242 struct cs428x_softc *sc; 243 uint32_t acctl; 244 245 sc = addr; 246 247 DPRINTFN(5,("write_codec: add=0x%02x data=0x%04x\n", ac97_addr, ac97_data)); 248 BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); 249 BA0WRITE4(sc, CS428X_ACCDA, ac97_data); 250 251 acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_DCV; 252 if (sc->type == TYPE_CS4280) 253 acctl |= ACCTL_RSTN; 254 BA0WRITE4(sc, CS428X_ACCTL, acctl); 255 256 if (cs428x_src_wait(sc) < 0) { 257 printf("%s: AC97 write fail (DCV!=0) for add=0x%02x data=" 258 "0x%04x\n", device_xname(sc->sc_dev), ac97_addr, ac97_data); 259 return 1; 260 } 261 return 0; 262 } 263 264 /* Internal functions */ 265 int 266 cs428x_allocmem(struct cs428x_softc *sc, size_t size, struct cs428x_dma *p) 267 { 268 int error; 269 size_t align; 270 271 align = sc->dma_align; 272 p->size = sc->dma_size; 273 /* allocate memory for upper audio driver */ 274 p->dum = kmem_alloc(size, KM_SLEEP); 275 276 error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0, 277 p->segs, sizeof(p->segs)/sizeof(p->segs[0]), 278 &p->nsegs, BUS_DMA_WAITOK); 279 if (error) { 280 aprint_error_dev(sc->sc_dev, "unable to allocate DMA. error=%d\n", 281 error); 282 goto allfree; 283 } 284 285 error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size, 286 &p->addr, BUS_DMA_WAITOK|BUS_DMA_COHERENT); 287 if (error) { 288 aprint_error_dev(sc->sc_dev, "unable to map DMA, error=%d\n", 289 error); 290 goto free; 291 } 292 293 error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size, 294 0, BUS_DMA_WAITOK, &p->map); 295 if (error) { 296 aprint_error_dev(sc->sc_dev, "unable to create DMA map, error=%d\n", 297 error); 298 goto unmap; 299 } 300 301 error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL, 302 BUS_DMA_WAITOK); 303 if (error) { 304 aprint_error_dev(sc->sc_dev, "unable to load DMA map, error=%d\n", 305 error); 306 goto destroy; 307 } 308 return 0; 309 310 destroy: 311 bus_dmamap_destroy(sc->sc_dmatag, p->map); 312 unmap: 313 bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); 314 free: 315 bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); 316 allfree: 317 kmem_free(p->dum, size); 318 319 return error; 320 } 321 322 int 323 cs428x_src_wait(struct cs428x_softc *sc) 324 { 325 int n; 326 327 n = 0; 328 while ((BA0READ4(sc, CS428X_ACCTL) & ACCTL_DCV)) { 329 delay(1000); 330 while (++n > 1000) { 331 printf("cs428x_src_wait: 0x%08x\n", 332 BA0READ4(sc, CS428X_ACCTL)); 333 return -1; 334 } 335 } 336 return 0; 337 } 338 339 void 340 cs428x_get_locks(void *addr, kmutex_t **intr, kmutex_t **thread) 341 { 342 struct cs428x_softc *sc; 343 344 sc = addr; 345 *intr = &sc->sc_intr_lock; 346 *thread = &sc->sc_lock; 347 } 348
Indexes created Wed Oct 01 18:09:54 GMT 2025