1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
164 	.name = "I2S/PCM controller",
212 	{ "allwinner,sun50i-a64-codec-i2s", (uintptr_t)&sun50i_a64_codec_config },
213 	{ "allwinner,sun8i-h3-i2s", (uintptr_t)&sun8i_h3_config },
220 	{ -1, 0 }
235 #define	I2S_LOCK(sc)		mtx_lock(&(sc)->mtx)
236 #define	I2S_UNLOCK(sc)		mtx_unlock(&(sc)->mtx)
237 #define	I2S_READ(sc, reg)	bus_read_4((sc)->res[0], (reg))
238 #define	I2S_WRITE(sc, reg, val)	bus_write_4((sc)->res[0], (reg), (val))
239 #define	I2S_TYPE(sc)		((sc)->cfg->type)
254 	return -1;  in sunxi_i2s_div_to_regval()
270 	error = clk_enable(sc->clk);  in aw_i2s_init()
272 		device_printf(sc->dev, "cannot enable mod clock\n");  in aw_i2s_init()
298 	I2S_WRITE(sc, sc->cfg->txchmap, 0x76543210);  in aw_i2s_init()
299 	val = I2S_READ(sc, sc->cfg->txchsel);  in aw_i2s_init()
304 	I2S_WRITE(sc, sc->cfg->txchsel, val);  in aw_i2s_init()
305 	I2S_WRITE(sc, sc->cfg->rxchmap, 0x76543210);  in aw_i2s_init()
306 	val = I2S_READ(sc, sc->cfg->rxchsel);  in aw_i2s_init()
311 	I2S_WRITE(sc, sc->cfg->rxchsel, val);  in aw_i2s_init()
331 	if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)  in aw_i2s_probe()
334 	device_set_desc(dev, "Allwinner I2S");  in aw_i2s_probe()
348 	sc->dev = dev;  in aw_i2s_attach()
350 	sc->cfg  = (void*)ofw_bus_search_compatible(dev, compat_data)->ocd_data;  in aw_i2s_attach()
352 	mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);  in aw_i2s_attach()
354 	if (bus_alloc_resources(dev, aw_i2s_spec, sc->res) != 0) {  in aw_i2s_attach()
360 	error = clk_get_by_ofw_name(dev, 0, "mod", &sc->clk);  in aw_i2s_attach()
381 			device_printf(dev, "cannot de-assert reset\n");  in aw_i2s_attach()
401 	struct aw_i2s_softc *i2s;  in aw_i2s_detach()  local
403 	i2s = device_get_softc(dev);  in aw_i2s_detach()
405 	if (i2s->clk)  in aw_i2s_detach()
406 		clk_release(i2s->clk);  in aw_i2s_detach()
408 	if (i2s->intrhand != NULL)  in aw_i2s_detach()
409 		bus_teardown_intr(i2s->dev, i2s->res[1], i2s->intrhand);  in aw_i2s_detach()
411 	bus_release_resources(dev, aw_i2s_spec, i2s->res);  in aw_i2s_detach()
412 	mtx_destroy(&i2s->mtx);  in aw_i2s_detach()
476 		chsel = I2S_READ(sc, sc->cfg->txchsel);  in aw_i2s_dai_init()
479 		I2S_WRITE(sc, sc->cfg->txchsel, chsel);  in aw_i2s_dai_init()
481 		chsel = I2S_READ(sc, sc->cfg->rxchsel);  in aw_i2s_dai_init()
484 		I2S_WRITE(sc, sc->cfg->rxchsel, chsel);  in aw_i2s_dai_init()
500 		fat0 |= DA_FAT0_LRCK_PERIOD(32 - 1);  in aw_i2s_dai_init()
523 	// device_printf(sc->dev, "status: %08x\n", status);  in aw_i2s_dai_intr()
533 		size = play_buf->bufsize;  in aw_i2s_dai_intr()
536 		samples = play_buf->buf;  in aw_i2s_dai_intr()
540 		for (; empty > 0; empty--) {  in aw_i2s_dai_intr()
546 		sc->play_ptr += written;  in aw_i2s_dai_intr()
547 		sc->play_ptr %= size;  in aw_i2s_dai_intr()
559 		size = rec_buf->bufsize;  in aw_i2s_dai_intr()
561 		samples = rec_buf->buf;  in aw_i2s_dai_intr()
566 		for (; available > 0; available--) {  in aw_i2s_dai_intr()
572 		sc->rec_ptr += recorded;  in aw_i2s_dai_intr()
573 		sc->rec_ptr %= size;  in aw_i2s_dai_intr()
650 			sc->play_ptr = 0;  in aw_i2s_dai_trigger()
660 			sc->rec_ptr = 0;  in aw_i2s_dai_trigger()
680 		ptr = sc->play_ptr;  in aw_i2s_dai_get_ptr()
682 		ptr = sc->rec_ptr;  in aw_i2s_dai_get_ptr()
693 	if (bus_setup_intr(dev, sc->res[1],  in aw_i2s_dai_setup_intr()
695 	    &sc->intrhand)) {  in aw_i2s_dai_setup_intr()
720 	error = clk_set_freq(sc->clk, AW_I2S_CLK_RATE, CLK_SET_ROUND_DOWN);  in aw_i2s_dai_set_sysclk()
722 		device_printf(sc->dev,  in aw_i2s_dai_set_sysclk()
726 	error = clk_enable(sc->clk);  in aw_i2s_dai_set_sysclk()
728 		device_printf(sc->dev,  in aw_i2s_dai_set_sysclk()
749 	if (bclk_val == -1 || mclk_val == -1) {  in aw_i2s_dai_set_sysclk()
750 		device_printf(sc->dev, "couldn't configure bclk/mclk dividers\n");  in aw_i2s_dai_set_sysclk()
799 	"i2s",