1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
45 #include <dev/sound/pcm/sound.h>
83 #define	TCR2_BCP	(1 << 25)	/* Bit Clock Polarity */
84 #define	TCR2_BCD	(1 << 24)	/* Bit Clock Direction */
101 #define	TCSR_BCE	(1 << 28)	/* Bit Clock Enable */
110 	uint32_t div; /* Bit Clock Divide. Division value is (div + 1) * 2. */
117  * Bit clock divider formula
120  *   MCLK - master clock
121  *   nch - number of channels
122  *   LRCLK - left right clock
171 /* PCM device private data */
183 	{ -1, 0 }
202 	sc = scp->sc;  in saimixer_init()
205 		return -1;  in saimixer_init()
209 	snd_mtxlock(sc->lock);  in saimixer_init()
210 	pcm_setflags(scp->dev, pcm_getflags(scp->dev) | SD_F_SOFTPCMVOL);  in saimixer_init()
212 	snd_mtxunlock(sc->lock);  in saimixer_init()
226 	device_printf(scp->dev, "saimixer_set() %d %d\n",  in saimixer_set()
253 	sc = scp->sc;  in saichan_init()
255 	snd_mtxlock(sc->lock);  in saichan_init()
256 	ch = &scp->chan[0];  in saichan_init()
257 	ch->dir = dir;  in saichan_init()
258 	ch->run = 0;  in saichan_init()
259 	ch->buffer = b;  in saichan_init()
260 	ch->channel = c;  in saichan_init()
261 	ch->parent = scp;  in saichan_init()
262 	snd_mtxunlock(sc->lock);  in saichan_init()
264 	if (sndbuf_setup(ch->buffer, sc->buf_base, sc->dma_size) != 0) {  in saichan_init()
265 		device_printf(scp->dev, "Can't setup sndbuf.\n");  in saichan_init()
276 	struct sc_pcminfo *scp = ch->parent;  in saichan_free()
277 	struct sc_info *sc = scp->sc;  in saichan_free()
280 	device_printf(scp->dev, "saichan_free()\n");  in saichan_free()
283 	snd_mtxlock(sc->lock);  in saichan_free()
285 	snd_mtxunlock(sc->lock);  in saichan_free()
295 	ch->format = format;  in saichan_setformat()
311 	scp = ch->parent;  in saichan_setspeed()
312 	sc = scp->sc;  in saichan_setspeed()
326 			threshold = sr->speed + ((rate_map[i + 1].speed != 0) ?  in saichan_setspeed()
327 			    ((rate_map[i + 1].speed - sr->speed) >> 1) : 0);  in saichan_setspeed()
333 	sc->sr = sr;  in saichan_setspeed()
337 	return (sr->speed);  in saichan_setspeed()
346 	sr = sc->sr;  in sai_configure_clock()
352 	 * after re-enabling transmitter (DMA goes stall).  in sai_configure_clock()
357 	reg |= (sr->div << 0);  in sai_configure_clock()
360 	pll4_configure_output(sr->mfi, sr->mfn, sr->mfd);  in sai_configure_clock()
367 	struct sc_pcminfo *scp = ch->parent;  in saichan_setblocksize()
368 	struct sc_info *sc = scp->sc;  in saichan_setblocksize()
370 	sndbuf_resize(ch->buffer, sc->dma_size / blocksize, blocksize);  in saichan_setblocksize()
372 	sc->period = sndbuf_getblksz(ch->buffer);  in saichan_setblocksize()
373 	return (sc->period);  in saichan_setblocksize()
386 	ch = &scp->chan[0];  in sai_dma_intr()
388 	sc = scp->sc;  in sai_dma_intr()
389 	tcd = sc->tcd;  in sai_dma_intr()
391 	sc->pos += (tcd->nbytes * tcd->nmajor);  in sai_dma_intr()
392 	if (sc->pos >= sc->dma_size)  in sai_dma_intr()
393 		sc->pos -= sc->dma_size;  in sai_dma_intr()
395 	if (ch->run)  in sai_dma_intr()
396 		chn_intr(ch->channel);  in sai_dma_intr()
414 	if ((node = ofw_bus_get_node(sc->dev)) == -1)  in find_edma_controller()
417 	if ((len = OF_getproplen(node, "edma-controller")) <= 0)  in find_edma_controller()
419 	if ((len = OF_getproplen(node, "edma-src-transmit")) <= 0)  in find_edma_controller()
421 	if ((len = OF_getproplen(node, "edma-mux-group")) <= 0)  in find_edma_controller()
424 	OF_getencprop(node, "edma-src-transmit", &dts_value, len);  in find_edma_controller()
426 	OF_getencprop(node, "edma-mux-group", &dts_value, len);  in find_edma_controller()
428 	OF_getencprop(node, "edma-controller", &dts_value, len);  in find_edma_controller()
431 	if ((len = OF_getproplen(edma_node, "device-id")) <= 0) {  in find_edma_controller()
435 	OF_getencprop(edma_node, "device-id", &dts_value, len);  in find_edma_controller()
444 			if (edma_sc->device_id == edma_device_id) {  in find_edma_controller()
454 		device_printf(sc->dev, "no eDMA. can't operate\n");  in find_edma_controller()
458 	sc->edma_sc = edma_sc;  in find_edma_controller()
460 	sc->edma_chnum = edma_sc->channel_configure(edma_sc, edma_mux_group,  in find_edma_controller()
462 	if (sc->edma_chnum < 0) {  in find_edma_controller()
476 	sc = scp->sc;  in setup_dma()
479 	tcd->channel = sc->edma_chnum;  in setup_dma()
480 	tcd->ih = sai_dma_intr;  in setup_dma()
481 	tcd->ih_user = scp;  in setup_dma()
482 	tcd->saddr = sc->buf_base_phys;  in setup_dma()
483 	tcd->daddr = rman_get_start(sc->res[0]) + I2S_TDR0;  in setup_dma()
489 	tcd->nbytes = 64;  in setup_dma()
491 	tcd->nmajor = 512;  in setup_dma()
492 	tcd->smod = 17;	/* dma_size range */  in setup_dma()
493 	tcd->dmod = 0;  in setup_dma()
494 	tcd->esg = 0;  in setup_dma()
495 	tcd->soff = 0x4;  in setup_dma()
496 	tcd->doff = 0;  in setup_dma()
497 	tcd->ssize = 0x2;  in setup_dma()
498 	tcd->dsize = 0x2;  in setup_dma()
499 	tcd->slast = 0;  in setup_dma()
500 	tcd->dlast_sga = 0;  in setup_dma()
502 	sc->tcd = tcd;  in setup_dma()
504 	sc->edma_sc->dma_setup(sc->edma_sc, sc->tcd);  in setup_dma()
513 	struct sc_pcminfo *scp = ch->parent;  in saichan_trigger()
514 	struct sc_info *sc = scp->sc;  in saichan_trigger()
516 	snd_mtxlock(sc->lock);  in saichan_trigger()
521 		device_printf(scp->dev, "trigger start\n");  in saichan_trigger()
523 		ch->run = 1;  in saichan_trigger()
529 		device_printf(scp->dev, "trigger stop or abort\n");  in saichan_trigger()
531 		ch->run = 0;  in saichan_trigger()
535 	snd_mtxunlock(sc->lock);  in saichan_trigger()
548 	scp = ch->parent;  in saichan_getptr()
549 	sc = scp->sc;  in saichan_getptr()
551 	return (sc->pos);  in saichan_getptr()
556 	 * eDMA doesn't allow 24-bit coping,
592 	if (!ofw_bus_is_compatible(dev, "fsl,mvf600-sai"))  in sai_probe()
606 	sc = scp->sc;  in sai_intr()
608 	device_printf(sc->dev, "Error I2S_TCSR == 0x%08x\n",  in sai_intr()
644 	/* Configure to 32-bit I2S mode */  in setup_sai()
690 	sc->dev = dev;  in sai_attach()
691 	sc->sr = &rate_map[0];  in sai_attach()
692 	sc->pos = 0;  in sai_attach()
694 	sc->lock = snd_mtxcreate(device_get_nameunit(dev), "sai softc");  in sai_attach()
695 	if (sc->lock == NULL) {  in sai_attach()
700 	if (bus_alloc_resources(dev, sai_spec, sc->res)) {  in sai_attach()
706 	sc->bst = rman_get_bustag(sc->res[0]);  in sai_attach()
707 	sc->bsh = rman_get_bushandle(sc->res[0]);  in sai_attach()
715 	/* Setup PCM */  in sai_attach()
717 	scp->sc = sc;  in sai_attach()
718 	scp->dev = dev;  in sai_attach()
721 	sc->dma_size = 131072;  in sai_attach()
729 	    bus_get_dma_tag(sc->dev),  in sai_attach()
730 	    4, sc->dma_size,		/* alignment, boundary */  in sai_attach()
734 	    sc->dma_size, 1,		/* maxsize, nsegments */  in sai_attach()
735 	    sc->dma_size, 0,		/* maxsegsize, flags */  in sai_attach()
737 	    &sc->dma_tag);  in sai_attach()
739 	err = bus_dmamem_alloc(sc->dma_tag, (void **)&sc->buf_base,  in sai_attach()
740 	    BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &sc->dma_map);  in sai_attach()
746 	err = bus_dmamap_load(sc->dma_tag, sc->dma_map, sc->buf_base,  in sai_attach()
747 	    sc->dma_size, sai_dmamap_cb, &sc->buf_base_phys, BUS_DMA_NOWAIT);  in sai_attach()
753 	bzero(sc->buf_base, sc->dma_size);  in sai_attach()
756 	err = bus_setup_intr(dev, sc->res[1], INTR_MPSAFE | INTR_TYPE_AV,  in sai_attach()
757 	    NULL, sai_intr, scp, &sc->ih);  in sai_attach()
767 	scp->chnum = 0;  in sai_attach()
769 	scp->chnum++;  in sai_attach()
774 		device_printf(dev, "Can't register pcm.\n");  in sai_attach()
793 	"pcm",