xref: /freebsd/sys/arm64/rockchip/rk3328_codec.c (revision 81ad6265)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2020 Oleksandr Tymoshenko <gonzo@FreeBSD.org>
5  * Copyright (c) 2018 Jared McNeill <jmcneill@invisible.ca>
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
33 
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/bus.h>
37 #include <sys/kernel.h>
38 #include <sys/lock.h>
39 #include <sys/module.h>
40 #include <sys/mutex.h>
41 #include <sys/rman.h>
42 #include <sys/resource.h>
43 #include <machine/bus.h>
44 
45 #include <dev/ofw/ofw_bus.h>
46 #include <dev/ofw/ofw_bus_subr.h>
47 
48 #include <dev/extres/clk/clk.h>
49 #include <dev/extres/syscon/syscon.h>
50 
51 #include "syscon_if.h"
52 
53 #include "opt_snd.h"
54 #include <dev/sound/pcm/sound.h>
55 #include <dev/sound/fdt/audio_dai.h>
56 #include "audio_dai_if.h"
57 #include "mixer_if.h"
58 
59 #define	RKCODEC_MIXER_DEVS		(1 << SOUND_MIXER_VOLUME)
60 
61 #define	GRF_SOC_CON2			0x0408
62 #define	 SOC_CON2_I2S_ACODEC_EN			(1 << 14)
63 #define	 SOC_CON2_I2S_ACODEC_EN_MASK		((1 << 14) << 16)
64 #define	GRF_SOC_CON10			0x0428
65 #define	 SOC_CON10_GPIOMUT			(1 << 1)
66 #define	 SOC_CON10_GPIOMUT_MASK			((1 << 1) << 16)
67 #define	 SOC_CON10_GPIOMUT_EN			(1 << 0)
68 #define	 SOC_CON10_GPIOMUT_EN_MASK		((1 << 0) << 16)
69 
70 #define	CODEC_RESET			0x00
71 #define	 RESET_DIG_CORE_RST			(1 << 1)
72 #define	 RESET_SYS_RST				(1 << 0)
73 #define	CODEC_DAC_INIT_CTRL1		0x0c
74 #define	 DAC_INIT_CTRL1_DIRECTION_IN		(0 << 5)
75 #define	 DAC_INIT_CTRL1_DIRECTION_OUT		(1 << 5)
76 #define	 DAC_INIT_CTRL1_DAC_I2S_MODE_SLAVE	(0 << 4)
77 #define	 DAC_INIT_CTRL1_DAC_I2S_MODE_MASTER	(1 << 4)
78 #define	 DAC_INIT_CTRL1_MODE_MASK		(3 << 4)
79 #define	CODEC_DAC_INIT_CTRL2		0x10
80 #define	 DAC_INIT_CTRL2_DAC_VDL_16BITS		(0 << 5)
81 #define	 DAC_INIT_CTRL2_DAC_VDL_20BITS		(1 << 5)
82 #define	 DAC_INIT_CTRL2_DAC_VDL_24BITS		(2 << 5)
83 #define	 DAC_INIT_CTRL2_DAC_VDL_32BITS		(3 << 5)
84 #define	 DAC_INIT_CTRL2_DAC_VDL_MASK		(3 << 5)
85 #define	 DAC_INIT_CTRL2_DAC_MODE_RJM		(0 << 3)
86 #define	 DAC_INIT_CTRL2_DAC_MODE_LJM		(1 << 3)
87 #define	 DAC_INIT_CTRL2_DAC_MODE_I2S		(2 << 3)
88 #define	 DAC_INIT_CTRL2_DAC_MODE_PCM		(3 << 3)
89 #define	 DAC_INIT_CTRL2_DAC_MODE_MASK		(3 << 3)
90 #define	CODEC_DAC_INIT_CTRL3		0x14
91 #define	 DAC_INIT_CTRL3_WL_16BITS		(0 << 2)
92 #define	 DAC_INIT_CTRL3_WL_20BITS		(1 << 2)
93 #define	 DAC_INIT_CTRL3_WL_24BITS		(2 << 2)
94 #define	 DAC_INIT_CTRL3_WL_32BITS		(3 << 2)
95 #define	 DAC_INIT_CTRL3_WL_MASK			(3 << 2)
96 #define	 DAC_INIT_CTRL3_RST_MASK		(1 << 1)
97 #define	 DAC_INIT_CTRL3_RST_DIS			(1 << 1)
98 #define	 DAC_INIT_CTRL3_DAC_BCP_REVERSAL	(1 << 0)
99 #define	 DAC_INIT_CTRL3_DAC_BCP_NORMAL		(0 << 0)
100 #define	 DAC_INIT_CTRL3_DAC_BCP_MASK		(1 << 0)
101 #define	CODEC_DAC_PRECHARGE_CTRL	0x88
102 #define	 DAC_PRECHARGE_CTRL_DAC_CHARGE_PRECHARGE	(1 << 7)
103 #define	 DAC_PRECHARGE_CTRL_DAC_CHARGE_CURRENT_I	(1 << 0)
104 #define	 DAC_PRECHARGE_CTRL_DAC_CHARGE_CURRENT_ALL	(0x7f)
105 #define	CODEC_DAC_PWR_CTRL		0x8c
106 #define	 DAC_PWR_CTRL_DAC_PWR			(1 << 6)
107 #define	 DAC_PWR_CTRL_DACL_PATH_REFV		(1 << 5)
108 #define	 DAC_PWR_CTRL_HPOUTL_ZERO_CROSSING	(1 << 4)
109 #define	 DAC_PWR_CTRL_DACR_PATH_REFV		(1 << 1)
110 #define	 DAC_PWR_CTRL_HPOUTR_ZERO_CROSSING	(1 << 0)
111 #define	CODEC_DAC_CLK_CTRL		0x90
112 #define	 DAC_CLK_CTRL_DACL_REFV_ON		(1 << 7)
113 #define	 DAC_CLK_CTRL_DACL_CLK_ON		(1 << 6)
114 #define	 DAC_CLK_CTRL_DACL_ON			(1 << 5)
115 #define	 DAC_CLK_CTRL_DACL_INIT_ON		(1 << 4)
116 #define	 DAC_CLK_CTRL_DACR_REFV_ON		(1 << 3)
117 #define	 DAC_CLK_CTRL_DACR_CLK_ON		(1 << 2)
118 #define	 DAC_CLK_CTRL_DACR_ON			(1 << 1)
119 #define	 DAC_CLK_CTRL_DACR_INIT_ON		(1 << 0)
120 #define	CODEC_HPMIX_CTRL		0x94
121 #define	 HPMIX_CTRL_HPMIXL_EN			(1 << 6)
122 #define	 HPMIX_CTRL_HPMIXL_INIT_EN		(1 << 5)
123 #define	 HPMIX_CTRL_HPMIXL_INIT2_EN		(1 << 4)
124 #define	 HPMIX_CTRL_HPMIXR_EN			(1 << 2)
125 #define	 HPMIX_CTRL_HPMIXR_INIT_EN		(1 << 1)
126 #define	 HPMIX_CTRL_HPMIXR_INIT2_EN		(1 << 0)
127 #define	CODEC_DAC_SELECT		0x98
128 #define	 DAC_SELECT_DACL_SELECT			(1 << 4)
129 #define	 DAC_SELECT_DACR_SELECT			(1 << 0)
130 #define	CODEC_HPOUT_CTRL		0x9c
131 #define	 HPOUT_CTRL_HPOUTL_EN			(1 << 7)
132 #define	 HPOUT_CTRL_HPOUTL_INIT_EN		(1 << 6)
133 #define	 HPOUT_CTRL_HPOUTL_UNMUTE		(1 << 5)
134 #define	 HPOUT_CTRL_HPOUTR_EN			(1 << 4)
135 #define	 HPOUT_CTRL_HPOUTR_INIT_EN		(1 << 3)
136 #define	 HPOUT_CTRL_HPOUTR_UNMUTE		(1 << 2)
137 #define	CODEC_HPOUTL_GAIN_CTRL		0xa0
138 #define	CODEC_HPOUTR_GAIN_CTRL		0xa4
139 #define	CODEC_HPOUT_POP_CTRL		0xa8
140 #define	 HPOUT_POP_CTRL_HPOUTR_POP		(1 << 5)
141 #define	 HPOUT_POP_CTRL_HPOUTR_POP_XCHARGE	(1 << 4)
142 #define	 HPOUT_POP_CTRL_HPOUTL_POP		(1 << 1)
143 #define	 HPOUT_POP_CTRL_HPOUTL_POP_XCHARGE	(1 << 0)
144 
145 #define	DEFAULT_RATE			(48000 * 256)
146 
147 static struct ofw_compat_data compat_data[] = {
148 	{ "rockchip,rk3328-codec",	1},
149 	{ NULL,				0 }
150 };
151 
152 struct rkcodec_softc {
153 	device_t	dev;
154 	struct resource	*res;
155 	struct mtx	mtx;
156 	clk_t		mclk;
157 	clk_t		pclk;
158 	struct syscon	*grf;
159 	u_int	regaddr;	/* address for the sysctl */
160 };
161 
162 #define	RKCODEC_LOCK(sc)		mtx_lock(&(sc)->mtx)
163 #define	RKCODEC_UNLOCK(sc)		mtx_unlock(&(sc)->mtx)
164 #define	RKCODEC_READ(sc, reg)		bus_read_4((sc)->res, (reg))
165 #define	RKCODEC_WRITE(sc, reg, val)	bus_write_4((sc)->res, (reg), (val))
166 
167 static int rkcodec_probe(device_t dev);
168 static int rkcodec_attach(device_t dev);
169 static int rkcodec_detach(device_t dev);
170 
171 static void
172 rkcodec_set_power(struct rkcodec_softc *sc, bool poweron)
173 {
174 	uint32_t val;
175 	val = RKCODEC_READ(sc, CODEC_DAC_PRECHARGE_CTRL);
176 	if (poweron)
177 		val |= DAC_PRECHARGE_CTRL_DAC_CHARGE_PRECHARGE;
178 	else
179 		val &= ~(DAC_PRECHARGE_CTRL_DAC_CHARGE_PRECHARGE);
180 	RKCODEC_WRITE(sc, CODEC_DAC_PRECHARGE_CTRL, val);
181 
182 	DELAY(10000);
183 
184 	val = RKCODEC_READ(sc, CODEC_DAC_PRECHARGE_CTRL);
185 	if (poweron)
186 		val |= DAC_PRECHARGE_CTRL_DAC_CHARGE_CURRENT_ALL;
187 	else
188 		val &= ~(DAC_PRECHARGE_CTRL_DAC_CHARGE_CURRENT_ALL);
189 	RKCODEC_WRITE(sc, CODEC_DAC_PRECHARGE_CTRL, val);
190 
191 }
192 
193 static void
194 rkcodec_set_mute(struct rkcodec_softc *sc, bool muted)
195 {
196 	uint32_t val;
197 	val = SOC_CON10_GPIOMUT_MASK;
198 	if (!muted)
199 		val |= SOC_CON10_GPIOMUT;
200 	SYSCON_WRITE_4(sc->grf, GRF_SOC_CON10, val);
201 }
202 
203 static void
204 rkcodec_reset(struct rkcodec_softc *sc)
205 {
206 
207 	RKCODEC_WRITE(sc, CODEC_RESET, 0);
208 	DELAY(10000);
209 	RKCODEC_WRITE(sc, CODEC_RESET, RESET_DIG_CORE_RST | RESET_SYS_RST);
210 }
211 
212 static int
213 rkcodec_probe(device_t dev)
214 {
215 	if (!ofw_bus_status_okay(dev))
216 		return (ENXIO);
217 
218 	if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
219 		return (ENXIO);
220 
221 	device_set_desc(dev, "Rockchip RK3328 CODEC");
222 	return (BUS_PROBE_DEFAULT);
223 }
224 
225 static int
226 rkcodec_attach(device_t dev)
227 {
228 	struct rkcodec_softc *sc;
229 	int error, rid;
230 	phandle_t node;
231 	uint32_t val;
232 
233 	sc = device_get_softc(dev);
234 	sc->dev = dev;
235 
236 	mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);
237 
238 	rid = 0;
239 	sc->res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
240 	if (!sc->res) {
241 		device_printf(dev, "could not allocate resource for device\n");
242 		error = ENXIO;
243 		goto fail;
244 	}
245 
246 	node = ofw_bus_get_node(dev);
247 	if (syscon_get_by_ofw_property(dev, node,
248 	    "rockchip,grf", &sc->grf) != 0) {
249 		device_printf(dev, "cannot get rockchip,grf handle\n");
250 		return (ENXIO);
251 	}
252 
253 	val = SOC_CON2_I2S_ACODEC_EN | SOC_CON2_I2S_ACODEC_EN_MASK;
254 	SYSCON_WRITE_4(sc->grf, GRF_SOC_CON2, val);
255 
256 	val = 0 | SOC_CON10_GPIOMUT_EN_MASK;
257 	SYSCON_WRITE_4(sc->grf, GRF_SOC_CON10, val);
258 
259 	error = clk_get_by_ofw_name(dev, 0, "pclk", &sc->pclk);
260 	if (error != 0) {
261 		device_printf(dev, "could not get pclk clock\n");
262 		goto fail;
263 	}
264 
265 	error = clk_get_by_ofw_name(dev, 0, "mclk", &sc->mclk);
266 	if (error != 0) {
267 		device_printf(dev, "could not get mclk clock\n");
268 		goto fail;
269 	}
270 
271 	error = clk_enable(sc->pclk);
272 	if (error != 0) {
273 		device_printf(sc->dev, "could not enable pclk clock\n");
274 		goto fail;
275 	}
276 
277 	error = clk_enable(sc->mclk);
278 	if (error != 0) {
279 		device_printf(sc->dev, "could not enable mclk clock\n");
280 		goto fail;
281 	}
282 
283 #if 0
284 	error = clk_set_freq(sc->mclk, DEFAULT_RATE, 0);
285 	if (error != 0) {
286 		device_printf(sc->dev, "could not set frequency for mclk clock\n");
287 		goto fail;
288 	}
289 #endif
290 
291 	/* TODO: handle mute-gpios */
292 
293 	rkcodec_reset(sc);
294 	rkcodec_set_power(sc, true);
295 
296 	val = RKCODEC_READ(sc, CODEC_DAC_PWR_CTRL);
297 	val |= DAC_PWR_CTRL_DAC_PWR;
298 	RKCODEC_WRITE(sc, CODEC_DAC_PWR_CTRL, val);
299 	DELAY(1000);
300 
301 	val |= DAC_PWR_CTRL_DACL_PATH_REFV |
302 	    DAC_PWR_CTRL_DACR_PATH_REFV;
303 	RKCODEC_WRITE(sc, CODEC_DAC_PWR_CTRL, val);
304 	DELAY(1000);
305 
306 	val |= DAC_PWR_CTRL_HPOUTL_ZERO_CROSSING |
307 	    DAC_PWR_CTRL_HPOUTR_ZERO_CROSSING;
308 	RKCODEC_WRITE(sc, CODEC_DAC_PWR_CTRL, val);
309 	DELAY(1000);
310 
311 	val = RKCODEC_READ(sc, CODEC_HPOUT_POP_CTRL);
312 	val |= HPOUT_POP_CTRL_HPOUTR_POP | HPOUT_POP_CTRL_HPOUTL_POP;
313 	val &= ~(HPOUT_POP_CTRL_HPOUTR_POP_XCHARGE | HPOUT_POP_CTRL_HPOUTL_POP_XCHARGE);
314 	RKCODEC_WRITE(sc, CODEC_HPOUT_POP_CTRL, val);
315 	DELAY(1000);
316 
317 	val = RKCODEC_READ(sc, CODEC_HPMIX_CTRL);
318 	val |= HPMIX_CTRL_HPMIXL_EN | HPMIX_CTRL_HPMIXR_EN;
319 	RKCODEC_WRITE(sc, CODEC_HPMIX_CTRL, val);
320 	DELAY(1000);
321 
322 	val |= HPMIX_CTRL_HPMIXL_INIT_EN | HPMIX_CTRL_HPMIXR_INIT_EN;
323 	RKCODEC_WRITE(sc, CODEC_HPMIX_CTRL, val);
324 	DELAY(1000);
325 
326 	val = RKCODEC_READ(sc, CODEC_HPOUT_CTRL);
327 	val |= HPOUT_CTRL_HPOUTL_EN | HPOUT_CTRL_HPOUTR_EN;
328 	RKCODEC_WRITE(sc, CODEC_HPOUT_CTRL, val);
329 	DELAY(1000);
330 
331 	val |= HPOUT_CTRL_HPOUTL_INIT_EN | HPOUT_CTRL_HPOUTR_INIT_EN;
332 	RKCODEC_WRITE(sc, CODEC_HPOUT_CTRL, val);
333 	DELAY(1000);
334 
335 	val = RKCODEC_READ(sc, CODEC_DAC_CLK_CTRL);
336 	val |= DAC_CLK_CTRL_DACL_REFV_ON | DAC_CLK_CTRL_DACR_REFV_ON;
337 	RKCODEC_WRITE(sc, CODEC_DAC_CLK_CTRL, val);
338 	DELAY(1000);
339 
340 	val |= DAC_CLK_CTRL_DACL_CLK_ON | DAC_CLK_CTRL_DACR_CLK_ON;
341 	RKCODEC_WRITE(sc, CODEC_DAC_CLK_CTRL, val);
342 	DELAY(1000);
343 
344 	val |= DAC_CLK_CTRL_DACL_ON | DAC_CLK_CTRL_DACR_ON;
345 	RKCODEC_WRITE(sc, CODEC_DAC_CLK_CTRL, val);
346 	DELAY(1000);
347 
348 	val |= DAC_CLK_CTRL_DACL_INIT_ON | DAC_CLK_CTRL_DACR_INIT_ON;
349 	RKCODEC_WRITE(sc, CODEC_DAC_CLK_CTRL, val);
350 	DELAY(1000);
351 
352 	val = RKCODEC_READ(sc, CODEC_DAC_SELECT);
353 	val |= DAC_SELECT_DACL_SELECT | DAC_SELECT_DACR_SELECT;
354 	RKCODEC_WRITE(sc, CODEC_DAC_SELECT, val);
355 	DELAY(1000);
356 
357 	val = RKCODEC_READ(sc, CODEC_HPMIX_CTRL);
358 	val |= HPMIX_CTRL_HPMIXL_INIT2_EN | HPMIX_CTRL_HPMIXR_INIT2_EN;
359 	RKCODEC_WRITE(sc, CODEC_HPMIX_CTRL, val);
360 	DELAY(1000);
361 
362 	val = RKCODEC_READ(sc, CODEC_HPOUT_CTRL);
363 	val |= HPOUT_CTRL_HPOUTL_UNMUTE | HPOUT_CTRL_HPOUTR_UNMUTE;
364 	RKCODEC_WRITE(sc, CODEC_HPOUT_CTRL, val);
365 	DELAY(1000);
366 
367 	RKCODEC_WRITE(sc, CODEC_HPOUTL_GAIN_CTRL, 0x18);
368 	RKCODEC_WRITE(sc, CODEC_HPOUTR_GAIN_CTRL, 0x18);
369 	DELAY(1000);
370 
371 	rkcodec_set_mute(sc, false);
372 
373 	node = ofw_bus_get_node(dev);
374 	OF_device_register_xref(OF_xref_from_node(node), dev);
375 
376 	return (0);
377 
378 fail:
379 	rkcodec_detach(dev);
380 	return (error);
381 }
382 
383 static int
384 rkcodec_detach(device_t dev)
385 {
386 	struct rkcodec_softc *sc;
387 
388 	sc = device_get_softc(dev);
389 
390 	if (sc->res)
391 		bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->res);
392 	mtx_destroy(&sc->mtx);
393 
394 	return (0);
395 }
396 
397 static int
398 rkcodec_mixer_init(struct snd_mixer *m)
399 {
400 
401 	mix_setdevs(m, RKCODEC_MIXER_DEVS);
402 
403 	return (0);
404 }
405 
406 static int
407 rkcodec_mixer_uninit(struct snd_mixer *m)
408 {
409 
410 	return (0);
411 }
412 
413 static int
414 rkcodec_mixer_reinit(struct snd_mixer *m)
415 {
416 
417 	return (0);
418 }
419 
420 static int
421 rkcodec_mixer_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
422 {
423 	struct rkcodec_softc *sc;
424 	struct mtx *mixer_lock;
425 	uint8_t do_unlock;
426 
427 	sc = device_get_softc(mix_getdevinfo(m));
428 	mixer_lock = mixer_get_lock(m);
429 
430 	if (mtx_owned(mixer_lock)) {
431 		do_unlock = 0;
432 	} else {
433 		do_unlock = 1;
434 		mtx_lock(mixer_lock);
435 	}
436 
437 	right = left;
438 
439 	RKCODEC_LOCK(sc);
440 	switch(dev) {
441 	case SOUND_MIXER_VOLUME:
442 		printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
443 		break;
444 
445 	case SOUND_MIXER_MIC:
446 		printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
447 		break;
448 	default:
449 		break;
450 	}
451 	RKCODEC_UNLOCK(sc);
452 
453 	if (do_unlock) {
454 		mtx_unlock(mixer_lock);
455 	}
456 
457 	return (left | (right << 8));
458 }
459 
460 static unsigned
461 rkcodec_mixer_setrecsrc(struct snd_mixer *m, unsigned src)
462 {
463 
464 	return (0);
465 }
466 
467 static kobj_method_t rkcodec_mixer_methods[] = {
468 	KOBJMETHOD(mixer_init,		rkcodec_mixer_init),
469 	KOBJMETHOD(mixer_uninit,	rkcodec_mixer_uninit),
470 	KOBJMETHOD(mixer_reinit,	rkcodec_mixer_reinit),
471 	KOBJMETHOD(mixer_set,		rkcodec_mixer_set),
472 	KOBJMETHOD(mixer_setrecsrc,	rkcodec_mixer_setrecsrc),
473 	KOBJMETHOD_END
474 };
475 
476 MIXER_DECLARE(rkcodec_mixer);
477 
478 static int
479 rkcodec_dai_init(device_t dev, uint32_t format)
480 {
481 	struct rkcodec_softc *sc;
482 	int fmt, pol, clk;
483 	uint32_t ctrl1, ctrl2, ctrl3;
484 
485 	sc = device_get_softc(dev);
486 
487 	fmt = AUDIO_DAI_FORMAT_FORMAT(format);
488 	pol = AUDIO_DAI_FORMAT_POLARITY(format);
489 	clk = AUDIO_DAI_FORMAT_CLOCK(format);
490 
491 	ctrl1 = RKCODEC_READ(sc, CODEC_DAC_INIT_CTRL1);
492 	ctrl2 = RKCODEC_READ(sc, CODEC_DAC_INIT_CTRL2);
493 	ctrl3 = RKCODEC_READ(sc, CODEC_DAC_INIT_CTRL3);
494 
495 	ctrl3 &= ~(DAC_INIT_CTRL3_DAC_BCP_MASK);
496 	switch (pol) {
497 	case AUDIO_DAI_POLARITY_IB_NF:
498 		ctrl3 |= DAC_INIT_CTRL3_DAC_BCP_REVERSAL;
499 		break;
500 	case AUDIO_DAI_POLARITY_NB_NF:
501 		ctrl3 |= DAC_INIT_CTRL3_DAC_BCP_NORMAL;
502 		break;
503 	default:
504 		return (EINVAL);
505 	}
506 
507 	ctrl1 &= ~(DAC_INIT_CTRL1_MODE_MASK);
508 	switch (clk) {
509 	case AUDIO_DAI_CLOCK_CBM_CFM:
510 		ctrl1 |= DAC_INIT_CTRL1_DIRECTION_OUT |
511 		    DAC_INIT_CTRL1_DAC_I2S_MODE_SLAVE;
512 		break;
513 	case AUDIO_DAI_CLOCK_CBS_CFS:
514 		ctrl1 |= DAC_INIT_CTRL1_DIRECTION_IN |
515 		    DAC_INIT_CTRL1_DAC_I2S_MODE_SLAVE;
516 		break;
517 	default:
518 		return (EINVAL);
519 	}
520 
521 	ctrl2 &= ~(DAC_INIT_CTRL2_DAC_VDL_MASK | DAC_INIT_CTRL2_DAC_MODE_MASK);
522 	ctrl2 |= DAC_INIT_CTRL2_DAC_VDL_16BITS;
523 	ctrl3 &= ~(DAC_INIT_CTRL3_WL_MASK);
524 	ctrl3 |= DAC_INIT_CTRL3_WL_32BITS;
525 	switch (fmt) {
526 	case AUDIO_DAI_FORMAT_I2S:
527 		ctrl2 |= DAC_INIT_CTRL2_DAC_MODE_I2S;
528 		break;
529 	case AUDIO_DAI_FORMAT_LJ:
530 		ctrl2 |= DAC_INIT_CTRL2_DAC_MODE_LJM;
531 		break;
532 	case AUDIO_DAI_FORMAT_RJ:
533 		ctrl2 |= DAC_INIT_CTRL2_DAC_MODE_RJM;
534 		break;
535 	default:
536 		return EINVAL;
537 	}
538 
539 	ctrl3 &= ~(DAC_INIT_CTRL3_RST_MASK);
540 	ctrl3 |= DAC_INIT_CTRL3_RST_DIS;
541 
542 	RKCODEC_WRITE(sc, CODEC_DAC_INIT_CTRL1, ctrl1);
543 	RKCODEC_WRITE(sc, CODEC_DAC_INIT_CTRL2, ctrl2);
544 	RKCODEC_WRITE(sc, CODEC_DAC_INIT_CTRL3, ctrl3);
545 
546 	return (0);
547 }
548 
549 static int
550 rkcodec_dai_trigger(device_t dev, int go, int pcm_dir)
551 {
552 	// struct rkcodec_softc 	*sc = device_get_softc(dev);
553 
554 	if ((pcm_dir != PCMDIR_PLAY) && (pcm_dir != PCMDIR_REC))
555 		return (EINVAL);
556 
557 	switch (go) {
558 	case PCMTRIG_START:
559 		if (pcm_dir == PCMDIR_PLAY) {
560 			printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
561 		}
562 		else if (pcm_dir == PCMDIR_REC) {
563 			printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
564 		}
565 		break;
566 
567 	case PCMTRIG_STOP:
568 	case PCMTRIG_ABORT:
569 		if (pcm_dir == PCMDIR_PLAY) {
570 			printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
571 		}
572 		else if (pcm_dir == PCMDIR_REC) {
573 			printf("[%s] %s:%d\n", __func__, __FILE__, __LINE__);
574 		}
575 		break;
576 	}
577 
578 	return (0);
579 }
580 
581 static int
582 rkcodec_dai_setup_mixer(device_t dev, device_t pcmdev)
583 {
584 
585 	mixer_init(pcmdev, &rkcodec_mixer_class, dev);
586 
587 	return (0);
588 }
589 
590 static device_method_t rkcodec_methods[] = {
591 	/* Device interface */
592 	DEVMETHOD(device_probe,		rkcodec_probe),
593 	DEVMETHOD(device_attach,	rkcodec_attach),
594 	DEVMETHOD(device_detach,	rkcodec_detach),
595 
596 	DEVMETHOD(audio_dai_init,	rkcodec_dai_init),
597 	DEVMETHOD(audio_dai_setup_mixer,	rkcodec_dai_setup_mixer),
598 	DEVMETHOD(audio_dai_trigger,	rkcodec_dai_trigger),
599 
600 	DEVMETHOD_END
601 };
602 
603 static driver_t rkcodec_driver = {
604 	"rk3328codec",
605 	rkcodec_methods,
606 	sizeof(struct rkcodec_softc),
607 };
608 
609 DRIVER_MODULE(rkcodec, simplebus, rkcodec_driver, 0, 0);
610 SIMPLEBUS_PNP_INFO(compat_data);
611