/* $NetBSD: cs428x.c,v 1.15 2008/04/10 19:13:36 cegger Exp $ */ /* * Copyright (c) 2000 Tatoku Ogaito. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Tatoku Ogaito * for the NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* Common functions for CS4280 and CS4281 */ #include __KERNEL_RCSID(0, "$NetBSD: cs428x.c,v 1.15 2008/04/10 19:13:36 cegger Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(CS4280_DEBUG) || defined(CS4281_DEBUG) int cs428x_debug = 0; #endif int cs428x_round_blocksize(void *addr, int blk, int mode, const audio_params_t *param) { struct cs428x_softc *sc; int retval; DPRINTFN(5,("cs428x_round_blocksize blk=%d -> ", blk)); sc = addr; if (blk < sc->hw_blocksize) retval = sc->hw_blocksize; else retval = blk & -(sc->hw_blocksize); DPRINTFN(5,("%d\n", retval)); return retval; } int cs428x_mixer_set_port(void *addr, mixer_ctrl_t *cp) { struct cs428x_softc *sc; int val; sc = addr; val = sc->codec_if->vtbl->mixer_set_port(sc->codec_if, cp); DPRINTFN(3,("mixer_set_port: val=%d\n", val)); return (val); } int cs428x_mixer_get_port(void *addr, mixer_ctrl_t *cp) { struct cs428x_softc *sc; sc = addr; return (sc->codec_if->vtbl->mixer_get_port(sc->codec_if, cp)); } int cs428x_query_devinfo(void *addr, mixer_devinfo_t *dip) { struct cs428x_softc *sc; sc = addr; return (sc->codec_if->vtbl->query_devinfo(sc->codec_if, dip)); } void * cs428x_malloc(void *addr, int direction, size_t size, struct malloc_type *pool, int flags) { struct cs428x_softc *sc; struct cs428x_dma *p; int error; sc = addr; p = malloc(sizeof(*p), pool, flags); if (p == NULL) return 0; error = cs428x_allocmem(sc, size, pool, flags, p); if (error) { free(p, pool); return 0; } p->next = sc->sc_dmas; sc->sc_dmas = p; return BUFADDR(p); } void cs428x_free(void *addr, void *ptr, struct malloc_type *pool) { struct cs428x_softc *sc; struct cs428x_dma **pp, *p; sc = addr; for (pp = &sc->sc_dmas; (p = *pp) != NULL; pp = &p->next) { if (BUFADDR(p) == ptr) { bus_dmamap_unload(sc->sc_dmatag, p->map); bus_dmamap_destroy(sc->sc_dmatag, p->map); bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); free(p->dum, pool); *pp = p->next; free(p, pool); return; } } } size_t cs428x_round_buffersize(void *addr, int direction, size_t size) { /* The real DMA buffersize are 4KB for CS4280 * and 64kB/MAX_CHANNELS for CS4281. * But they are too small for high quality audio, * let the upper layer(audio) use a larger buffer. * (originally suggested by Lennart Augustsson.) */ return size; } paddr_t cs428x_mappage(void *addr, void *mem, off_t off, int prot) { struct cs428x_softc *sc; struct cs428x_dma *p; sc = addr; if (off < 0) return -1; for (p = sc->sc_dmas; p && BUFADDR(p) != mem; p = p->next) continue; if (p == NULL) { DPRINTF(("cs428x_mappage: bad buffer address\n")); return -1; } return (bus_dmamem_mmap(sc->sc_dmatag, p->segs, p->nsegs, off, prot, BUS_DMA_WAITOK)); } int cs428x_get_props(void *addr) { int retval; retval = AUDIO_PROP_INDEPENDENT | AUDIO_PROP_FULLDUPLEX; #ifdef MMAP_READY /* How can I mmap ? */ retval |= AUDIO_PROP_MMAP; #endif return retval; } /* AC97 */ int cs428x_attach_codec(void *addr, struct ac97_codec_if *codec_if) { struct cs428x_softc *sc; DPRINTF(("cs428x_attach_codec:\n")); sc = addr; sc->codec_if = codec_if; return 0; } int cs428x_read_codec(void *addr, uint8_t ac97_addr, uint16_t *ac97_data) { struct cs428x_softc *sc; uint32_t acctl; int n; sc = addr; DPRINTFN(5,("read_codec: add=0x%02x ", ac97_addr)); /* * Make sure that there is not data sitting around from a previous * uncompleted access. */ BA0READ4(sc, CS428X_ACSDA); /* Set up AC97 control registers. */ BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); BA0WRITE4(sc, CS428X_ACCDA, 0); acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_CRW | ACCTL_DCV; if (sc->type == TYPE_CS4280) acctl |= ACCTL_RSTN; BA0WRITE4(sc, CS428X_ACCTL, acctl); if (cs428x_src_wait(sc) < 0) { printf("%s: AC97 read prob. (DCV!=0) for add=0x%0x\n", device_xname(&sc->sc_dev), ac97_addr); return 1; } /* wait for valid status bit is active */ n = 0; while ((BA0READ4(sc, CS428X_ACSTS) & ACSTS_VSTS) == 0) { delay(1); while (++n > 1000) { printf("%s: AC97 read fail (VSTS==0) for add=0x%0x\n", device_xname(&sc->sc_dev), ac97_addr); return 1; } } *ac97_data = BA0READ4(sc, CS428X_ACSDA); DPRINTFN(5,("data=0x%04x\n", *ac97_data)); return 0; } int cs428x_write_codec(void *addr, uint8_t ac97_addr, uint16_t ac97_data) { struct cs428x_softc *sc; uint32_t acctl; sc = addr; DPRINTFN(5,("write_codec: add=0x%02x data=0x%04x\n", ac97_addr, ac97_data)); BA0WRITE4(sc, CS428X_ACCAD, ac97_addr); BA0WRITE4(sc, CS428X_ACCDA, ac97_data); acctl = ACCTL_ESYN | ACCTL_VFRM | ACCTL_DCV; if (sc->type == TYPE_CS4280) acctl |= ACCTL_RSTN; BA0WRITE4(sc, CS428X_ACCTL, acctl); if (cs428x_src_wait(sc) < 0) { printf("%s: AC97 write fail (DCV!=0) for add=0x%02x data=" "0x%04x\n", device_xname(&sc->sc_dev), ac97_addr, ac97_data); return 1; } return 0; } /* Internal functions */ int cs428x_allocmem(struct cs428x_softc *sc, size_t size, struct malloc_type *pool, int flags, struct cs428x_dma *p) { int error; size_t align; align = sc->dma_align; p->size = sc->dma_size; /* allocate memory for upper audio driver */ p->dum = malloc(size, pool, flags); if (p->dum == NULL) return 1; error = bus_dmamem_alloc(sc->sc_dmatag, p->size, align, 0, p->segs, sizeof(p->segs)/sizeof(p->segs[0]), &p->nsegs, BUS_DMA_NOWAIT); if (error) { aprint_error_dev(&sc->sc_dev, "unable to allocate DMA. error=%d\n", error); goto allfree; } error = bus_dmamem_map(sc->sc_dmatag, p->segs, p->nsegs, p->size, &p->addr, BUS_DMA_NOWAIT|BUS_DMA_COHERENT); if (error) { aprint_error_dev(&sc->sc_dev, "unable to map DMA, error=%d\n", error); goto free; } error = bus_dmamap_create(sc->sc_dmatag, p->size, 1, p->size, 0, BUS_DMA_NOWAIT, &p->map); if (error) { aprint_error_dev(&sc->sc_dev, "unable to create DMA map, error=%d\n", error); goto unmap; } error = bus_dmamap_load(sc->sc_dmatag, p->map, p->addr, p->size, NULL, BUS_DMA_NOWAIT); if (error) { aprint_error_dev(&sc->sc_dev, "unable to load DMA map, error=%d\n", error); goto destroy; } return 0; destroy: bus_dmamap_destroy(sc->sc_dmatag, p->map); unmap: bus_dmamem_unmap(sc->sc_dmatag, p->addr, p->size); free: bus_dmamem_free(sc->sc_dmatag, p->segs, p->nsegs); allfree: free(p->dum, pool); return error; } int cs428x_src_wait(struct cs428x_softc *sc) { int n; n = 0; while ((BA0READ4(sc, CS428X_ACCTL) & ACCTL_DCV)) { delay(1000); while (++n > 1000) { printf("cs428x_src_wait: 0x%08x\n", BA0READ4(sc, CS428X_ACCTL)); return -1; } } return 0; }