1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
84 #define		I2S_CKR_MDIV(n)		(((n) - 1) << 16)
86 #define		I2S_CKR_RSD(n)		(((n) - 1) << 8)
88 #define		I2S_CKR_TSD(n)		(((n) - 1) << 0)
94 #define		I2S_DMACR_RDL(n)	(((n) - 1) << 16)
98 #define		I2S_INTCR_RFT(n)	(((n) - 1) << 20)
137 	{ "rockchip,rk3066-i2s",		1 },
138 	{ "rockchip,rk3399-i2s",		1 },
145 	{ -1, 0 }
161 #define	RK_I2S_LOCK(sc)			mtx_lock(&(sc)->mtx)
162 #define	RK_I2S_UNLOCK(sc)		mtx_unlock(&(sc)->mtx)
163 #define	RK_I2S_READ_4(sc, reg)		bus_read_4((sc)->res[0], (reg))
164 #define	RK_I2S_WRITE_4(sc, reg, val)	bus_write_4((sc)->res[0], (reg), (val))
183 	clk_set_freq(sc->clk, RK_I2S_SAMPLING_RATE * 256,  in rk_i2s_init()
185 	error = clk_enable(sc->clk);  in rk_i2s_init()
187 		device_printf(sc->dev, "cannot enable i2s_clk clock\n");  in rk_i2s_init()
195 	if (sc->grf && ofw_bus_is_compatible(sc->dev, "rockchip,rk3399-i2s")) {  in rk_i2s_init()
198 		SYSCON_WRITE_4(sc->grf, GRF_SOC_CON8, val);  in rk_i2s_init()
204 		SYSCON_WRITE_4(sc->grf, 0xe640, val);  in rk_i2s_init()
219 	if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)  in rk_i2s_probe()
222 	device_set_desc(dev, "Rockchip I2S");  in rk_i2s_probe()
234 	sc->dev = dev;  in rk_i2s_attach()
236 	mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);  in rk_i2s_attach()
238 	if (bus_alloc_resources(dev, rk_i2s_spec, sc->res) != 0) {  in rk_i2s_attach()
244 	error = clk_get_by_ofw_name(dev, 0, "i2s_hclk", &sc->hclk);  in rk_i2s_attach()
250 	error = clk_get_by_ofw_name(dev, 0, "i2s_clk", &sc->clk);  in rk_i2s_attach()
257 	error = clk_enable(sc->hclk);  in rk_i2s_attach()
266 	    "rockchip,grf", &sc->grf) != 0) {  in rk_i2s_attach()
285 	struct rk_i2s_softc *i2s;  in rk_i2s_detach()  local
287 	i2s = device_get_softc(dev);  in rk_i2s_detach()
289 	if (i2s->hclk != NULL)  in rk_i2s_detach()
290 		clk_release(i2s->hclk);  in rk_i2s_detach()
291 	if (i2s->clk)  in rk_i2s_detach()
292 		clk_release(i2s->clk);  in rk_i2s_detach()
294 	if (i2s->intrhand != NULL)  in rk_i2s_detach()
295 		bus_teardown_intr(i2s->dev, i2s->res[1], i2s->intrhand);  in rk_i2s_detach()
297 	bus_release_resources(dev, rk_i2s_spec, i2s->res);  in rk_i2s_detach()
298 	mtx_destroy(&i2s->mtx);  in rk_i2s_detach()
404 		if (count > FIFO_SIZE - 1)  in rk_i2s_dai_intr()
405 			count = FIFO_SIZE - 1;  in rk_i2s_dai_intr()
406 		size = play_buf->bufsize;  in rk_i2s_dai_intr()
409 		samples = play_buf->buf;  in rk_i2s_dai_intr()
419 		sc->play_ptr += written;  in rk_i2s_dai_intr()
420 		sc->play_ptr %= size;  in rk_i2s_dai_intr()
429 		size = rec_buf->bufsize;  in rk_i2s_dai_intr()
431 		samples = rec_buf->buf;  in rk_i2s_dai_intr()
436 		for (; level > 0; level--) {  in rk_i2s_dai_intr()
444 		sc->rec_ptr += recorded;  in rk_i2s_dai_intr()
445 		sc->rec_ptr %= size;  in rk_i2s_dai_intr()
515 			sc->play_ptr = 0;  in rk_i2s_dai_trigger()
517 			sc->rec_ptr = 0;  in rk_i2s_dai_trigger()
535 		ptr = sc->play_ptr;  in rk_i2s_dai_get_ptr()
537 		ptr = sc->rec_ptr;  in rk_i2s_dai_get_ptr()
548 	if (bus_setup_intr(dev, sc->res[1],  in rk_i2s_dai_setup_intr()
550 	    &sc->intrhand)) {  in rk_i2s_dai_setup_intr()
572 	error = clk_disable(sc->clk);  in rk_i2s_dai_set_sysclk()
574 		device_printf(sc->dev, "could not disable i2s_clk clock\n");  in rk_i2s_dai_set_sysclk()
578 	error = clk_set_freq(sc->clk, rate, CLK_SET_ROUND_DOWN);  in rk_i2s_dai_set_sysclk()
580 		device_printf(sc->dev, "could not set i2s_clk freq\n");  in rk_i2s_dai_set_sysclk()
582 	error = clk_enable(sc->clk);  in rk_i2s_dai_set_sysclk()
584 		device_printf(sc->dev, "could not enable i2s_clk clock\n");  in rk_i2s_dai_set_sysclk()
607 		error = clk_get_freq(sc->clk, &clk_freq);  in rk_i2s_dai_set_chanspeed()
609 			device_printf(sc->dev, "failed to get clk frequency: err=%d\n", error);  in rk_i2s_dai_set_chanspeed()
647 	"i2s",