2 * Copyright (c) 2014-2016 Jared D. McNeill <jmcneill@invisible.ca>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
21 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
22 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * Allwinner A10/A20 and H3 Audio Codec
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include <sys/param.h>
37 #include <sys/systm.h>
40 #include <sys/condvar.h>
41 #include <sys/kernel.h>
42 #include <sys/module.h>
45 #include <machine/bus.h>
47 #include <dev/sound/pcm/sound.h>
48 #include <dev/sound/chip.h>
50 #include <dev/ofw/ofw_bus.h>
51 #include <dev/ofw/ofw_bus_subr.h>
53 #include <dev/gpio/gpiobusvar.h>
55 #include <dev/extres/clk/clk.h>
56 #include <dev/extres/hwreset/hwreset.h>
58 #include "sunxi_dma_if.h"
63 struct a10codec_config {
65 struct kobj_class *mixer_class;
67 /* toggle DAC/ADC mute */
68 void (*mute)(struct a10codec_info *, int, int);
86 #define TX_TRIG_LEVEL 0xf
87 #define RX_TRIG_LEVEL 0x7
88 #define DRQ_CLR_CNT 0x3
90 #define AC_DAC_DPC(_sc) ((_sc)->cfg->DPC)
91 #define DAC_DPC_EN_DA 0x80000000
92 #define AC_DAC_FIFOC(_sc) ((_sc)->cfg->DAC_FIFOC)
93 #define DAC_FIFOC_FS_SHIFT 29
94 #define DAC_FIFOC_FS_MASK (7U << DAC_FIFOC_FS_SHIFT)
95 #define DAC_FS_48KHZ 0
96 #define DAC_FS_32KHZ 1
97 #define DAC_FS_24KHZ 2
98 #define DAC_FS_16KHZ 3
99 #define DAC_FS_12KHZ 4
100 #define DAC_FS_8KHZ 5
101 #define DAC_FS_192KHZ 6
102 #define DAC_FS_96KHZ 7
103 #define DAC_FIFOC_FIFO_MODE_SHIFT 24
104 #define DAC_FIFOC_FIFO_MODE_MASK (3U << DAC_FIFOC_FIFO_MODE_SHIFT)
105 #define FIFO_MODE_24_31_8 0
106 #define FIFO_MODE_16_31_16 0
107 #define FIFO_MODE_16_15_0 1
108 #define DAC_FIFOC_DRQ_CLR_CNT_SHIFT 21
109 #define DAC_FIFOC_DRQ_CLR_CNT_MASK (3U << DAC_FIFOC_DRQ_CLR_CNT_SHIFT)
110 #define DAC_FIFOC_TX_TRIG_LEVEL_SHIFT 8
111 #define DAC_FIFOC_TX_TRIG_LEVEL_MASK (0x7f << DAC_FIFOC_TX_TRIG_LEVEL_SHIFT)
112 #define DAC_FIFOC_MONO_EN (1U << 6)
113 #define DAC_FIFOC_TX_BITS (1U << 5)
114 #define DAC_FIFOC_DRQ_EN (1U << 4)
115 #define DAC_FIFOC_FIFO_FLUSH (1U << 0)
116 #define AC_DAC_FIFOS(_sc) ((_sc)->cfg->DAC_FIFOS)
117 #define AC_DAC_TXDATA(_sc) ((_sc)->cfg->DAC_TXDATA)
118 #define AC_ADC_FIFOC(_sc) ((_sc)->cfg->ADC_FIFOC)
119 #define ADC_FIFOC_FS_SHIFT 29
120 #define ADC_FIFOC_FS_MASK (7U << ADC_FIFOC_FS_SHIFT)
121 #define ADC_FS_48KHZ 0
122 #define ADC_FIFOC_EN_AD (1U << 28)
123 #define ADC_FIFOC_RX_FIFO_MODE (1U << 24)
124 #define ADC_FIFOC_RX_TRIG_LEVEL_SHIFT 8
125 #define ADC_FIFOC_RX_TRIG_LEVEL_MASK (0x1f << ADC_FIFOC_RX_TRIG_LEVEL_SHIFT)
126 #define ADC_FIFOC_MONO_EN (1U << 7)
127 #define ADC_FIFOC_RX_BITS (1U << 6)
128 #define ADC_FIFOC_DRQ_EN (1U << 4)
129 #define ADC_FIFOC_FIFO_FLUSH (1U << 1)
130 #define AC_ADC_FIFOS(_sc) ((_sc)->cfg->ADC_FIFOS)
131 #define AC_ADC_RXDATA(_sc) ((_sc)->cfg->ADC_RXDATA)
132 #define AC_DAC_CNT(_sc) ((_sc)->cfg->DAC_CNT)
133 #define AC_ADC_CNT(_sc) ((_sc)->cfg->ADC_CNT)
135 static uint32_t a10codec_fmt[] = {
136 SND_FORMAT(AFMT_S16_LE, 1, 0),
137 SND_FORMAT(AFMT_S16_LE, 2, 0),
141 static struct pcmchan_caps a10codec_pcaps = { 8000, 192000, a10codec_fmt, 0 };
142 static struct pcmchan_caps a10codec_rcaps = { 8000, 48000, a10codec_fmt, 0 };
144 struct a10codec_info;
146 struct a10codec_chinfo {
147 struct snd_dbuf *buffer;
148 struct pcm_channel *channel;
149 struct a10codec_info *parent;
165 struct a10codec_info {
167 struct resource *res[2];
173 struct a10codec_config *cfg;
175 struct a10codec_chinfo play;
176 struct a10codec_chinfo rec;
179 static struct resource_spec a10codec_spec[] = {
180 { SYS_RES_MEMORY, 0, RF_ACTIVE },
184 #define CODEC_ANALOG_READ(sc, reg) bus_read_4((sc)->res[1], (reg))
185 #define CODEC_ANALOG_WRITE(sc, reg, val) bus_write_4((sc)->res[1], (reg), (val))
187 #define CODEC_READ(sc, reg) bus_read_4((sc)->res[0], (reg))
188 #define CODEC_WRITE(sc, reg, val) bus_write_4((sc)->res[0], (reg), (val))
191 * A10/A20 mixer interface
194 #define A10_DAC_ACTL 0x10
195 #define A10_DACAREN (1U << 31)
196 #define A10_DACALEN (1U << 30)
197 #define A10_MIXEN (1U << 29)
198 #define A10_DACPAS (1U << 8)
199 #define A10_PAMUTE (1U << 6)
200 #define A10_PAVOL_SHIFT 0
201 #define A10_PAVOL_MASK (0x3f << A10_PAVOL_SHIFT)
202 #define A10_ADC_ACTL 0x28
203 #define A10_ADCREN (1U << 31)
204 #define A10_ADCLEN (1U << 30)
205 #define A10_PREG1EN (1U << 29)
206 #define A10_PREG2EN (1U << 28)
207 #define A10_VMICEN (1U << 27)
208 #define A10_ADCG_SHIFT 20
209 #define A10_ADCG_MASK (7U << A10_ADCG_SHIFT)
210 #define A10_ADCIS_SHIFT 17
211 #define A10_ADCIS_MASK (7U << A10_ADCIS_SHIFT)
212 #define A10_ADC_IS_LINEIN 0
213 #define A10_ADC_IS_FMIN 1
214 #define A10_ADC_IS_MIC1 2
215 #define A10_ADC_IS_MIC2 3
216 #define A10_ADC_IS_MIC1_L_MIC2_R 4
217 #define A10_ADC_IS_MIC1_LR_MIC2_LR 5
218 #define A10_ADC_IS_OMIX 6
219 #define A10_ADC_IS_LINEIN_L_MIC1_R 7
220 #define A10_LNRDF (1U << 16)
221 #define A10_LNPREG_SHIFT 13
222 #define A10_LNPREG_MASK (7U << A10_LNPREG_SHIFT)
223 #define A10_PA_EN (1U << 4)
224 #define A10_DDE (1U << 3)
227 a10_mixer_init(struct snd_mixer *m)
229 struct a10codec_info *sc = mix_getdevinfo(m);
232 mix_setdevs(m, SOUND_MASK_VOLUME | SOUND_MASK_LINE | SOUND_MASK_RECLEV);
233 mix_setrecdevs(m, SOUND_MASK_LINE | SOUND_MASK_LINE1 | SOUND_MASK_MIC);
235 /* Unmute input source to PA */
236 val = CODEC_READ(sc, A10_DAC_ACTL);
238 CODEC_WRITE(sc, A10_DAC_ACTL, val);
241 val = CODEC_READ(sc, A10_ADC_ACTL);
243 CODEC_WRITE(sc, A10_ADC_ACTL, val);
248 static const struct a10_mixer {
252 } a10_mixers[SOUND_MIXER_NRDEVICES] = {
253 [SOUND_MIXER_VOLUME] = { A10_DAC_ACTL, A10_PAVOL_MASK,
255 [SOUND_MIXER_LINE] = { A10_ADC_ACTL, A10_LNPREG_MASK,
257 [SOUND_MIXER_RECLEV] = { A10_ADC_ACTL, A10_ADCG_MASK,
262 a10_mixer_set(struct snd_mixer *m, unsigned dev, unsigned left,
265 struct a10codec_info *sc = mix_getdevinfo(m);
269 max = a10_mixers[dev].mask >> a10_mixers[dev].shift;
270 nvol = (left * max) / 100;
272 val = CODEC_READ(sc, a10_mixers[dev].reg);
273 val &= ~a10_mixers[dev].mask;
274 val |= (nvol << a10_mixers[dev].shift);
275 CODEC_WRITE(sc, a10_mixers[dev].reg, val);
277 left = right = (left * 100) / max;
278 return (left | (right << 8));
282 a10_mixer_setrecsrc(struct snd_mixer *m, uint32_t src)
284 struct a10codec_info *sc = mix_getdevinfo(m);
287 val = CODEC_READ(sc, A10_ADC_ACTL);
290 case SOUND_MASK_LINE: /* line-in */
291 val &= ~A10_ADCIS_MASK;
292 val |= (A10_ADC_IS_LINEIN << A10_ADCIS_SHIFT);
294 case SOUND_MASK_MIC: /* MIC1 */
295 val &= ~A10_ADCIS_MASK;
296 val |= (A10_ADC_IS_MIC1 << A10_ADCIS_SHIFT);
298 case SOUND_MASK_LINE1: /* MIC2 */
299 val &= ~A10_ADCIS_MASK;
300 val |= (A10_ADC_IS_MIC2 << A10_ADCIS_SHIFT);
306 CODEC_WRITE(sc, A10_ADC_ACTL, val);
308 switch ((val & A10_ADCIS_MASK) >> A10_ADCIS_SHIFT) {
309 case A10_ADC_IS_LINEIN:
310 return (SOUND_MASK_LINE);
311 case A10_ADC_IS_MIC1:
312 return (SOUND_MASK_MIC);
313 case A10_ADC_IS_MIC2:
314 return (SOUND_MASK_LINE1);
321 a10_mute(struct a10codec_info *sc, int mute, int dir)
325 if (dir == PCMDIR_PLAY) {
326 val = CODEC_READ(sc, A10_DAC_ACTL);
328 /* Disable DAC analog l/r channels and output mixer */
333 /* Enable DAC analog l/r channels and output mixer */
338 CODEC_WRITE(sc, A10_DAC_ACTL, val);
340 val = CODEC_READ(sc, A10_ADC_ACTL);
342 /* Disable ADC analog l/r channels, MIC1 preamp,
343 * and VMIC pin voltage
350 /* Enable ADC analog l/r channels, MIC1 preamp,
351 * and VMIC pin voltage
358 CODEC_WRITE(sc, A10_ADC_ACTL, val);
362 static kobj_method_t a10_mixer_methods[] = {
363 KOBJMETHOD(mixer_init, a10_mixer_init),
364 KOBJMETHOD(mixer_set, a10_mixer_set),
365 KOBJMETHOD(mixer_setrecsrc, a10_mixer_setrecsrc),
368 MIXER_DECLARE(a10_mixer);
375 #define H3_PR_CFG 0x00
376 #define H3_AC_PR_RST (1 << 28)
377 #define H3_AC_PR_RW (1 << 24)
378 #define H3_AC_PR_ADDR_SHIFT 16
379 #define H3_AC_PR_ADDR_MASK (0x1f << H3_AC_PR_ADDR_SHIFT)
380 #define H3_ACDA_PR_WDAT_SHIFT 8
381 #define H3_ACDA_PR_WDAT_MASK (0xff << H3_ACDA_PR_WDAT_SHIFT)
382 #define H3_ACDA_PR_RDAT_SHIFT 0
383 #define H3_ACDA_PR_RDAT_MASK (0xff << H3_ACDA_PR_RDAT_SHIFT)
385 #define H3_LOMIXSC 0x01
386 #define H3_LOMIXSC_LDAC (1 << 1)
387 #define H3_ROMIXSC 0x02
388 #define H3_ROMIXSC_RDAC (1 << 1)
389 #define H3_DAC_PA_SRC 0x03
390 #define H3_DACAREN (1 << 7)
391 #define H3_DACALEN (1 << 6)
392 #define H3_RMIXEN (1 << 5)
393 #define H3_LMIXEN (1 << 4)
394 #define H3_LINEIN_GCTR 0x05
395 #define H3_LINEING_SHIFT 4
396 #define H3_LINEING_MASK (0x7 << H3_LINEING_SHIFT)
397 #define H3_MIC_GCTR 0x06
398 #define H3_MIC1_GAIN_SHIFT 4
399 #define H3_MIC1_GAIN_MASK (0x7 << H3_MIC1_GAIN_SHIFT)
400 #define H3_MIC2_GAIN_SHIFT 0
401 #define H3_MIC2_GAIN_MASK (0x7 << H3_MIC2_GAIN_SHIFT)
402 #define H3_PAEN_CTR 0x07
403 #define H3_LINEOUTEN (1 << 7)
404 #define H3_LINEOUT_VOLC 0x09
405 #define H3_LINEOUTVOL_SHIFT 3
406 #define H3_LINEOUTVOL_MASK (0x1f << H3_LINEOUTVOL_SHIFT)
407 #define H3_MIC2G_LINEOUT_CTR 0x0a
408 #define H3_LINEOUT_LSEL (1 << 3)
409 #define H3_LINEOUT_RSEL (1 << 2)
410 #define H3_LADCMIXSC 0x0c
411 #define H3_RADCMIXSC 0x0d
412 #define H3_ADCMIXSC_MIC1 (1 << 6)
413 #define H3_ADCMIXSC_MIC2 (1 << 5)
414 #define H3_ADCMIXSC_LINEIN (1 << 2)
415 #define H3_ADCMIXSC_OMIXER (3 << 0)
416 #define H3_ADC_AP_EN 0x0f
417 #define H3_ADCREN (1 << 7)
418 #define H3_ADCLEN (1 << 6)
419 #define H3_ADCG_SHIFT 0
420 #define H3_ADCG_MASK (0x7 << H3_ADCG_SHIFT)
423 h3_pr_read(struct a10codec_info *sc, u_int addr)
427 /* Read current value */
428 val = CODEC_ANALOG_READ(sc, H3_PR_CFG);
430 /* De-assert reset */
432 CODEC_ANALOG_WRITE(sc, H3_PR_CFG, val);
436 CODEC_ANALOG_WRITE(sc, H3_PR_CFG, val);
439 val &= ~H3_AC_PR_ADDR_MASK;
440 val |= (addr << H3_AC_PR_ADDR_SHIFT);
441 CODEC_ANALOG_WRITE(sc, H3_PR_CFG, val);
444 return (CODEC_ANALOG_READ(sc , H3_PR_CFG) & H3_ACDA_PR_RDAT_MASK);
448 h3_pr_write(struct a10codec_info *sc, u_int addr, u_int data)
452 /* Read current value */
453 val = CODEC_ANALOG_READ(sc, H3_PR_CFG);
455 /* De-assert reset */
457 CODEC_ANALOG_WRITE(sc, H3_PR_CFG, val);
460 val &= ~H3_AC_PR_ADDR_MASK;
461 val |= (addr << H3_AC_PR_ADDR_SHIFT);
462 CODEC_ANALOG_WRITE(sc, H3_PR_CFG, val);
465 val &= ~H3_ACDA_PR_WDAT_MASK;
466 val |= (data << H3_ACDA_PR_WDAT_SHIFT);
467 CODEC_ANALOG_WRITE(sc, H3_PR_CFG, val);
471 CODEC_ANALOG_WRITE(sc, H3_PR_CFG, val);
475 h3_pr_set_clear(struct a10codec_info *sc, u_int addr, u_int set, u_int clr)
479 old = h3_pr_read(sc, addr);
480 new = set | (old & ~clr);
481 h3_pr_write(sc, addr, new);
485 h3_mixer_init(struct snd_mixer *m)
490 struct a10codec_info *sc = mix_getdevinfo(m);
492 if (OF_getencprop(ofw_bus_get_node(sc->dev), "allwinner,codec-analog-controls",
493 &analogref, sizeof(analogref)) <= 0) {
497 if (OF_getencprop(OF_node_from_xref(analogref), "reg",
498 reg, sizeof(reg)) <= 0) {
502 sc->res[1] = bus_alloc_resource(sc->dev, SYS_RES_MEMORY, &rid, reg[0],
503 reg[0]+reg[1], reg[1], RF_ACTIVE );
505 if (sc->res[1] == NULL) {
509 mix_setdevs(m, SOUND_MASK_PCM | SOUND_MASK_VOLUME | SOUND_MASK_RECLEV |
510 SOUND_MASK_MIC | SOUND_MASK_LINE | SOUND_MASK_LINE1);
511 mix_setrecdevs(m, SOUND_MASK_MIC | SOUND_MASK_LINE | SOUND_MASK_LINE1 |
514 pcm_setflags(sc->dev, pcm_getflags(sc->dev) | SD_F_SOFTPCMVOL);
516 /* Right & Left LINEOUT enable */
517 h3_pr_set_clear(sc, H3_PAEN_CTR, H3_LINEOUTEN, 0);
518 h3_pr_set_clear(sc, H3_MIC2G_LINEOUT_CTR,
519 H3_LINEOUT_LSEL | H3_LINEOUT_RSEL, 0);
524 static const struct h3_mixer {
528 } h3_mixers[SOUND_MIXER_NRDEVICES] = {
529 [SOUND_MIXER_VOLUME] = { H3_LINEOUT_VOLC, H3_LINEOUTVOL_MASK,
530 H3_LINEOUTVOL_SHIFT },
531 [SOUND_MIXER_RECLEV] = { H3_ADC_AP_EN, H3_ADCG_MASK,
533 [SOUND_MIXER_LINE] = { H3_LINEIN_GCTR, H3_LINEING_MASK,
535 [SOUND_MIXER_MIC] = { H3_MIC_GCTR, H3_MIC1_GAIN_MASK,
536 H3_MIC1_GAIN_SHIFT },
537 [SOUND_MIXER_LINE1] = { H3_MIC_GCTR, H3_MIC2_GAIN_MASK,
538 H3_MIC2_GAIN_SHIFT },
542 h3_mixer_set(struct snd_mixer *m, unsigned dev, unsigned left,
545 struct a10codec_info *sc = mix_getdevinfo(m);
548 max = h3_mixers[dev].mask >> h3_mixers[dev].shift;
549 nvol = (left * max) / 100;
551 h3_pr_set_clear(sc, h3_mixers[dev].reg,
552 nvol << h3_mixers[dev].shift, h3_mixers[dev].mask);
554 left = right = (left * 100) / max;
555 return (left | (right << 8));
559 h3_mixer_setrecsrc(struct snd_mixer *m, uint32_t src)
561 struct a10codec_info *sc = mix_getdevinfo(m);
565 src &= (SOUND_MASK_LINE | SOUND_MASK_MIC |
566 SOUND_MASK_LINE1 | SOUND_MASK_IMIX);
568 if ((src & SOUND_MASK_LINE) != 0) /* line-in */
569 val |= H3_ADCMIXSC_LINEIN;
570 if ((src & SOUND_MASK_MIC) != 0) /* MIC1 */
571 val |= H3_ADCMIXSC_MIC1;
572 if ((src & SOUND_MASK_LINE1) != 0) /* MIC2 */
573 val |= H3_ADCMIXSC_MIC2;
574 if ((src & SOUND_MASK_IMIX) != 0) /* l/r output mixer */
575 val |= H3_ADCMIXSC_OMIXER;
577 h3_pr_write(sc, H3_LADCMIXSC, val);
578 h3_pr_write(sc, H3_RADCMIXSC, val);
584 h3_mute(struct a10codec_info *sc, int mute, int dir)
586 if (dir == PCMDIR_PLAY) {
588 /* Mute DAC l/r channels to output mixer */
589 h3_pr_set_clear(sc, H3_LOMIXSC, 0, H3_LOMIXSC_LDAC);
590 h3_pr_set_clear(sc, H3_ROMIXSC, 0, H3_ROMIXSC_RDAC);
591 /* Disable DAC analog l/r channels and output mixer */
592 h3_pr_set_clear(sc, H3_DAC_PA_SRC,
593 0, H3_DACAREN | H3_DACALEN | H3_RMIXEN | H3_LMIXEN);
595 /* Enable DAC analog l/r channels and output mixer */
596 h3_pr_set_clear(sc, H3_DAC_PA_SRC,
597 H3_DACAREN | H3_DACALEN | H3_RMIXEN | H3_LMIXEN, 0);
598 /* Unmute DAC l/r channels to output mixer */
599 h3_pr_set_clear(sc, H3_LOMIXSC, H3_LOMIXSC_LDAC, 0);
600 h3_pr_set_clear(sc, H3_ROMIXSC, H3_ROMIXSC_RDAC, 0);
604 /* Disable ADC analog l/r channels */
605 h3_pr_set_clear(sc, H3_ADC_AP_EN,
606 0, H3_ADCREN | H3_ADCLEN);
608 /* Enable ADC analog l/r channels */
609 h3_pr_set_clear(sc, H3_ADC_AP_EN,
610 H3_ADCREN | H3_ADCLEN, 0);
615 static kobj_method_t h3_mixer_methods[] = {
616 KOBJMETHOD(mixer_init, h3_mixer_init),
617 KOBJMETHOD(mixer_set, h3_mixer_set),
618 KOBJMETHOD(mixer_setrecsrc, h3_mixer_setrecsrc),
621 MIXER_DECLARE(h3_mixer);
629 a10codec_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
631 struct a10codec_chinfo *ch = arg;
636 ch->physaddr = segs[0].ds_addr;
640 a10codec_transfer(struct a10codec_chinfo *ch)
645 if (ch->dir == PCMDIR_PLAY) {
646 src = ch->physaddr + ch->pos;
650 dst = ch->physaddr + ch->pos;
653 error = SUNXI_DMA_TRANSFER(ch->dmac, ch->dmachan, src, dst,
657 device_printf(ch->parent->dev, "DMA transfer failed: %d\n",
663 a10codec_dmaconfig(struct a10codec_chinfo *ch)
665 struct a10codec_info *sc = ch->parent;
666 struct sunxi_dma_config conf;
668 memset(&conf, 0, sizeof(conf));
669 conf.src_width = conf.dst_width = 16;
670 conf.src_burst_len = conf.dst_burst_len = 4;
672 if (ch->dir == PCMDIR_PLAY) {
673 conf.dst_noincr = true;
674 conf.src_drqtype = sc->cfg->drqtype_sdram;
675 conf.dst_drqtype = sc->cfg->drqtype_codec;
677 conf.src_noincr = true;
678 conf.src_drqtype = sc->cfg->drqtype_codec;
679 conf.dst_drqtype = sc->cfg->drqtype_sdram;
682 SUNXI_DMA_SET_CONFIG(ch->dmac, ch->dmachan, &conf);
686 a10codec_dmaintr(void *priv)
688 struct a10codec_chinfo *ch = priv;
691 bufsize = sndbuf_getsize(ch->buffer);
693 ch->pos += ch->blocksize;
694 if (ch->pos >= bufsize)
698 chn_intr(ch->channel);
699 a10codec_transfer(ch);
704 a10codec_fs(struct a10codec_chinfo *ch)
708 return (DAC_FS_48KHZ);
710 return (DAC_FS_24KHZ);
712 return (DAC_FS_12KHZ);
714 return (DAC_FS_192KHZ);
716 return (DAC_FS_32KHZ);
718 return (DAC_FS_16KHZ);
720 return (DAC_FS_8KHZ);
722 return (DAC_FS_96KHZ);
724 return (DAC_FS_48KHZ);
729 a10codec_start(struct a10codec_chinfo *ch)
731 struct a10codec_info *sc = ch->parent;
736 if (ch->dir == PCMDIR_PLAY) {
738 CODEC_WRITE(sc, AC_DAC_FIFOC(sc), DAC_FIFOC_FIFO_FLUSH);
740 /* Clear DAC FIFO status */
741 CODEC_WRITE(sc, AC_DAC_FIFOS(sc),
742 CODEC_READ(sc, AC_DAC_FIFOS(sc)));
745 sc->cfg->mute(sc, 0, ch->dir);
747 /* Configure DAC DMA channel */
748 a10codec_dmaconfig(ch);
750 /* Configure DAC FIFO */
751 CODEC_WRITE(sc, AC_DAC_FIFOC(sc),
752 (AFMT_CHANNEL(ch->format) == 1 ? DAC_FIFOC_MONO_EN : 0) |
753 (a10codec_fs(ch) << DAC_FIFOC_FS_SHIFT) |
754 (FIFO_MODE_16_15_0 << DAC_FIFOC_FIFO_MODE_SHIFT) |
755 (DRQ_CLR_CNT << DAC_FIFOC_DRQ_CLR_CNT_SHIFT) |
756 (TX_TRIG_LEVEL << DAC_FIFOC_TX_TRIG_LEVEL_SHIFT));
759 val = CODEC_READ(sc, AC_DAC_FIFOC(sc));
760 val |= DAC_FIFOC_DRQ_EN;
761 CODEC_WRITE(sc, AC_DAC_FIFOC(sc), val);
764 CODEC_WRITE(sc, AC_ADC_FIFOC(sc), ADC_FIFOC_FIFO_FLUSH);
766 /* Clear ADC FIFO status */
767 CODEC_WRITE(sc, AC_ADC_FIFOS(sc),
768 CODEC_READ(sc, AC_ADC_FIFOS(sc)));
771 sc->cfg->mute(sc, 0, ch->dir);
773 /* Configure ADC DMA channel */
774 a10codec_dmaconfig(ch);
776 /* Configure ADC FIFO */
777 CODEC_WRITE(sc, AC_ADC_FIFOC(sc),
779 ADC_FIFOC_RX_FIFO_MODE |
780 (AFMT_CHANNEL(ch->format) == 1 ? ADC_FIFOC_MONO_EN : 0) |
781 (a10codec_fs(ch) << ADC_FIFOC_FS_SHIFT) |
782 (RX_TRIG_LEVEL << ADC_FIFOC_RX_TRIG_LEVEL_SHIFT));
785 val = CODEC_READ(sc, AC_ADC_FIFOC(sc));
786 val |= ADC_FIFOC_DRQ_EN;
787 CODEC_WRITE(sc, AC_ADC_FIFOC(sc), val);
790 /* Start DMA transfer */
791 a10codec_transfer(ch);
795 a10codec_stop(struct a10codec_chinfo *ch)
797 struct a10codec_info *sc = ch->parent;
799 /* Disable DMA channel */
800 SUNXI_DMA_HALT(ch->dmac, ch->dmachan);
802 sc->cfg->mute(sc, 1, ch->dir);
804 if (ch->dir == PCMDIR_PLAY) {
805 /* Disable DAC DRQ */
806 CODEC_WRITE(sc, AC_DAC_FIFOC(sc), 0);
808 /* Disable ADC DRQ */
809 CODEC_WRITE(sc, AC_ADC_FIFOC(sc), 0);
814 a10codec_chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
815 struct pcm_channel *c, int dir)
817 struct a10codec_info *sc = devinfo;
818 struct a10codec_chinfo *ch = dir == PCMDIR_PLAY ? &sc->play : &sc->rec;
823 error = ofw_bus_parse_xref_list_alloc(ofw_bus_get_node(sc->dev),
824 "dmas", "#dma-cells", dir == PCMDIR_PLAY ? 1 : 0,
825 &xref, &ncells, &cells);
827 device_printf(sc->dev, "cannot parse 'dmas' property\n");
836 ch->fifo = rman_get_start(sc->res[0]) +
837 (dir == PCMDIR_REC ? AC_ADC_RXDATA(sc) : AC_DAC_TXDATA(sc));
839 ch->dmac = OF_device_from_xref(xref);
840 if (ch->dmac == NULL) {
841 device_printf(sc->dev, "cannot find DMA controller\n");
842 device_printf(sc->dev, "xref = 0x%x\n", (u_int)xref);
845 ch->dmachan = SUNXI_DMA_ALLOC(ch->dmac, false, a10codec_dmaintr, ch);
846 if (ch->dmachan == NULL) {
847 device_printf(sc->dev, "cannot allocate DMA channel\n");
851 error = bus_dmamem_alloc(sc->dmat, &ch->dmaaddr,
852 BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &ch->dmamap);
854 device_printf(sc->dev, "cannot allocate channel buffer\n");
857 error = bus_dmamap_load(sc->dmat, ch->dmamap, ch->dmaaddr,
858 sc->dmasize, a10codec_dmamap_cb, ch, BUS_DMA_NOWAIT);
860 device_printf(sc->dev, "cannot load DMA map\n");
863 memset(ch->dmaaddr, 0, sc->dmasize);
865 if (sndbuf_setup(ch->buffer, ch->dmaaddr, sc->dmasize) != 0) {
866 device_printf(sc->dev, "cannot setup sndbuf\n");
874 a10codec_chan_free(kobj_t obj, void *data)
876 struct a10codec_chinfo *ch = data;
877 struct a10codec_info *sc = ch->parent;
879 SUNXI_DMA_FREE(ch->dmac, ch->dmachan);
880 bus_dmamap_unload(sc->dmat, ch->dmamap);
881 bus_dmamem_free(sc->dmat, ch->dmaaddr, ch->dmamap);
887 a10codec_chan_setformat(kobj_t obj, void *data, uint32_t format)
889 struct a10codec_chinfo *ch = data;
897 a10codec_chan_setspeed(kobj_t obj, void *data, uint32_t speed)
899 struct a10codec_chinfo *ch = data;
902 * The codec supports full duplex operation but both DAC and ADC
903 * use the same source clock (PLL2). Limit the available speeds to
904 * those supported by a 24576000 Hz input.
917 /* 96 KHz / 192 KHz mode only supported for playback */
918 if (ch->dir == PCMDIR_PLAY) {
942 a10codec_chan_setblocksize(kobj_t obj, void *data, uint32_t blocksize)
944 struct a10codec_chinfo *ch = data;
946 ch->blocksize = blocksize & ~3;
948 return (ch->blocksize);
952 a10codec_chan_trigger(kobj_t obj, void *data, int go)
954 struct a10codec_chinfo *ch = data;
955 struct a10codec_info *sc = ch->parent;
957 if (!PCMTRIG_COMMON(go))
960 snd_mtxlock(sc->lock);
975 snd_mtxunlock(sc->lock);
981 a10codec_chan_getptr(kobj_t obj, void *data)
983 struct a10codec_chinfo *ch = data;
988 static struct pcmchan_caps *
989 a10codec_chan_getcaps(kobj_t obj, void *data)
991 struct a10codec_chinfo *ch = data;
993 if (ch->dir == PCMDIR_PLAY) {
994 return (&a10codec_pcaps);
996 return (&a10codec_rcaps);
1000 static kobj_method_t a10codec_chan_methods[] = {
1001 KOBJMETHOD(channel_init, a10codec_chan_init),
1002 KOBJMETHOD(channel_free, a10codec_chan_free),
1003 KOBJMETHOD(channel_setformat, a10codec_chan_setformat),
1004 KOBJMETHOD(channel_setspeed, a10codec_chan_setspeed),
1005 KOBJMETHOD(channel_setblocksize, a10codec_chan_setblocksize),
1006 KOBJMETHOD(channel_trigger, a10codec_chan_trigger),
1007 KOBJMETHOD(channel_getptr, a10codec_chan_getptr),
1008 KOBJMETHOD(channel_getcaps, a10codec_chan_getcaps),
1011 CHANNEL_DECLARE(a10codec_chan);
1018 static const struct a10codec_config a10_config = {
1019 .mixer_class = &a10_mixer_class,
1021 .drqtype_codec = 19,
1022 .drqtype_sdram = 22,
1034 static const struct a10codec_config h3_config = {
1035 .mixer_class = &h3_mixer_class,
1037 .drqtype_codec = 15,
1050 static struct ofw_compat_data compat_data[] = {
1051 { "allwinner,sun4i-a10-codec", (uintptr_t)&a10_config },
1052 { "allwinner,sun7i-a20-codec", (uintptr_t)&a10_config },
1053 { "allwinner,sun8i-h3-codec", (uintptr_t)&h3_config },
1058 a10codec_probe(device_t dev)
1060 if (!ofw_bus_status_okay(dev))
1063 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
1066 device_set_desc(dev, "Allwinner Audio Codec");
1067 return (BUS_PROBE_DEFAULT);
1071 a10codec_attach(device_t dev)
1073 struct a10codec_info *sc;
1074 char status[SND_STATUSLEN];
1075 struct gpiobus_pin *pa_pin;
1077 clk_t clk_bus, clk_codec;
1082 node = ofw_bus_get_node(dev);
1084 sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
1085 sc->cfg = (void *)ofw_bus_search_compatible(dev, compat_data)->ocd_data;
1087 sc->lock = snd_mtxcreate(device_get_nameunit(dev), "a10codec softc");
1089 if (bus_alloc_resources(dev, a10codec_spec, sc->res)) {
1090 device_printf(dev, "cannot allocate resources for device\n");
1095 sc->dmasize = 131072;
1096 error = bus_dma_tag_create(
1097 bus_get_dma_tag(dev),
1098 4, sc->dmasize, /* alignment, boundary */
1099 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1100 BUS_SPACE_MAXADDR, /* highaddr */
1101 NULL, NULL, /* filter, filterarg */
1102 sc->dmasize, 1, /* maxsize, nsegs */
1103 sc->dmasize, 0, /* maxsegsize, flags */
1104 NULL, NULL, /* lockfunc, lockarg */
1107 device_printf(dev, "cannot create DMA tag\n");
1112 if (clk_get_by_ofw_name(dev, 0, "apb", &clk_bus) != 0 &&
1113 clk_get_by_ofw_name(dev, 0, "ahb", &clk_bus) != 0) {
1114 device_printf(dev, "cannot find bus clock\n");
1117 if (clk_get_by_ofw_name(dev, 0, "codec", &clk_codec) != 0) {
1118 device_printf(dev, "cannot find codec clock\n");
1122 /* Gating bus clock for codec */
1123 if (clk_enable(clk_bus) != 0) {
1124 device_printf(dev, "cannot enable bus clock\n");
1127 /* Activate audio codec clock. According to the A10 and A20 user
1128 * manuals, Audio_pll can be either 24.576MHz or 22.5792MHz. Most
1129 * audio sampling rates require an 24.576MHz input clock with the
1130 * exception of 44.1kHz, 22.05kHz, and 11.025kHz. Unfortunately,
1131 * both capture and playback use the same clock source so to
1132 * safely support independent full duplex operation, we use a fixed
1133 * 24.576MHz clock source and don't advertise native support for
1134 * the three sampling rates that require a 22.5792MHz input.
1136 error = clk_set_freq(clk_codec, 24576000, CLK_SET_ROUND_DOWN);
1138 device_printf(dev, "cannot set codec clock frequency\n");
1141 /* Enable audio codec clock */
1142 error = clk_enable(clk_codec);
1144 device_printf(dev, "cannot enable codec clock\n");
1148 /* De-assert hwreset */
1149 if (hwreset_get_by_ofw_idx(dev, 0, 0, &rst) == 0) {
1150 error = hwreset_deassert(rst);
1152 device_printf(dev, "cannot de-assert reset\n");
1158 val = CODEC_READ(sc, AC_DAC_DPC(sc));
1159 val |= DAC_DPC_EN_DA;
1160 CODEC_WRITE(sc, AC_DAC_DPC(sc), val);
1162 if (mixer_init(dev, sc->cfg->mixer_class, sc)) {
1163 device_printf(dev, "mixer_init failed\n");
1168 if (gpio_pin_get_by_ofw_property(dev, node, "allwinner,pa-gpios",
1170 error = gpio_pin_set_active(pa_pin, 1);
1172 device_printf(dev, "failed to unmute PA\n");
1175 pcm_setflags(dev, pcm_getflags(dev) | SD_F_MPSAFE);
1177 if (pcm_register(dev, sc, 1, 1)) {
1178 device_printf(dev, "pcm_register failed\n");
1182 pcm_addchan(dev, PCMDIR_PLAY, &a10codec_chan_class, sc);
1183 pcm_addchan(dev, PCMDIR_REC, &a10codec_chan_class, sc);
1185 snprintf(status, SND_STATUSLEN, "at %s", ofw_bus_get_name(dev));
1186 pcm_setstatus(dev, status);
1191 bus_release_resources(dev, a10codec_spec, sc->res);
1192 snd_mtxfree(sc->lock);
1198 static device_method_t a10codec_pcm_methods[] = {
1199 /* Device interface */
1200 DEVMETHOD(device_probe, a10codec_probe),
1201 DEVMETHOD(device_attach, a10codec_attach),
1206 static driver_t a10codec_pcm_driver = {
1208 a10codec_pcm_methods,
1212 DRIVER_MODULE(a10codec, simplebus, a10codec_pcm_driver, pcm_devclass, 0, 0);
1213 MODULE_DEPEND(a10codec, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1214 MODULE_VERSION(a10codec, 1);