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[3];
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 },
181 { SYS_RES_MEMORY, 1, RF_ACTIVE | RF_OPTIONAL },
182 { SYS_RES_IRQ, 0, RF_ACTIVE },
186 #define CODEC_READ(sc, reg) bus_read_4((sc)->res[0], (reg))
187 #define CODEC_WRITE(sc, reg, val) bus_write_4((sc)->res[0], (reg), (val))
190 * A10/A20 mixer interface
193 #define A10_DAC_ACTL 0x10
194 #define A10_DACAREN (1U << 31)
195 #define A10_DACALEN (1U << 30)
196 #define A10_MIXEN (1U << 29)
197 #define A10_DACPAS (1U << 8)
198 #define A10_PAMUTE (1U << 6)
199 #define A10_PAVOL_SHIFT 0
200 #define A10_PAVOL_MASK (0x3f << A10_PAVOL_SHIFT)
201 #define A10_ADC_ACTL 0x28
202 #define A10_ADCREN (1U << 31)
203 #define A10_ADCLEN (1U << 30)
204 #define A10_PREG1EN (1U << 29)
205 #define A10_PREG2EN (1U << 28)
206 #define A10_VMICEN (1U << 27)
207 #define A10_ADCG_SHIFT 20
208 #define A10_ADCG_MASK (7U << A10_ADCG_SHIFT)
209 #define A10_ADCIS_SHIFT 17
210 #define A10_ADCIS_MASK (7U << A10_ADCIS_SHIFT)
211 #define A10_ADC_IS_LINEIN 0
212 #define A10_ADC_IS_FMIN 1
213 #define A10_ADC_IS_MIC1 2
214 #define A10_ADC_IS_MIC2 3
215 #define A10_ADC_IS_MIC1_L_MIC2_R 4
216 #define A10_ADC_IS_MIC1_LR_MIC2_LR 5
217 #define A10_ADC_IS_OMIX 6
218 #define A10_ADC_IS_LINEIN_L_MIC1_R 7
219 #define A10_LNRDF (1U << 16)
220 #define A10_LNPREG_SHIFT 13
221 #define A10_LNPREG_MASK (7U << A10_LNPREG_SHIFT)
222 #define A10_PA_EN (1U << 4)
223 #define A10_DDE (1U << 3)
226 a10_mixer_init(struct snd_mixer *m)
228 struct a10codec_info *sc = mix_getdevinfo(m);
231 mix_setdevs(m, SOUND_MASK_VOLUME | SOUND_MASK_LINE | SOUND_MASK_RECLEV);
232 mix_setrecdevs(m, SOUND_MASK_LINE | SOUND_MASK_LINE1 | SOUND_MASK_MIC);
234 /* Unmute input source to PA */
235 val = CODEC_READ(sc, A10_DAC_ACTL);
237 CODEC_WRITE(sc, A10_DAC_ACTL, val);
240 val = CODEC_READ(sc, A10_ADC_ACTL);
242 CODEC_WRITE(sc, A10_ADC_ACTL, val);
247 static const struct a10_mixer {
251 } a10_mixers[SOUND_MIXER_NRDEVICES] = {
252 [SOUND_MIXER_VOLUME] = { A10_DAC_ACTL, A10_PAVOL_MASK,
254 [SOUND_MIXER_LINE] = { A10_ADC_ACTL, A10_LNPREG_MASK,
256 [SOUND_MIXER_RECLEV] = { A10_ADC_ACTL, A10_ADCG_MASK,
261 a10_mixer_set(struct snd_mixer *m, unsigned dev, unsigned left,
264 struct a10codec_info *sc = mix_getdevinfo(m);
268 max = a10_mixers[dev].mask >> a10_mixers[dev].shift;
269 nvol = (left * max) / 100;
271 val = CODEC_READ(sc, a10_mixers[dev].reg);
272 val &= ~a10_mixers[dev].mask;
273 val |= (nvol << a10_mixers[dev].shift);
274 CODEC_WRITE(sc, a10_mixers[dev].reg, val);
276 left = right = (left * 100) / max;
277 return (left | (right << 8));
281 a10_mixer_setrecsrc(struct snd_mixer *m, uint32_t src)
283 struct a10codec_info *sc = mix_getdevinfo(m);
286 val = CODEC_READ(sc, A10_ADC_ACTL);
289 case SOUND_MASK_LINE: /* line-in */
290 val &= ~A10_ADCIS_MASK;
291 val |= (A10_ADC_IS_LINEIN << A10_ADCIS_SHIFT);
293 case SOUND_MASK_MIC: /* MIC1 */
294 val &= ~A10_ADCIS_MASK;
295 val |= (A10_ADC_IS_MIC1 << A10_ADCIS_SHIFT);
297 case SOUND_MASK_LINE1: /* MIC2 */
298 val &= ~A10_ADCIS_MASK;
299 val |= (A10_ADC_IS_MIC2 << A10_ADCIS_SHIFT);
305 CODEC_WRITE(sc, A10_ADC_ACTL, val);
307 switch ((val & A10_ADCIS_MASK) >> A10_ADCIS_SHIFT) {
308 case A10_ADC_IS_LINEIN:
309 return (SOUND_MASK_LINE);
310 case A10_ADC_IS_MIC1:
311 return (SOUND_MASK_MIC);
312 case A10_ADC_IS_MIC2:
313 return (SOUND_MASK_LINE1);
320 a10_mute(struct a10codec_info *sc, int mute, int dir)
324 if (dir == PCMDIR_PLAY) {
325 val = CODEC_READ(sc, A10_DAC_ACTL);
327 /* Disable DAC analog l/r channels and output mixer */
332 /* Enable DAC analog l/r channels and output mixer */
337 CODEC_WRITE(sc, A10_DAC_ACTL, val);
339 val = CODEC_READ(sc, A10_ADC_ACTL);
341 /* Disable ADC analog l/r channels, MIC1 preamp,
342 * and VMIC pin voltage
349 /* Enable ADC analog l/r channels, MIC1 preamp,
350 * and VMIC pin voltage
357 CODEC_WRITE(sc, A10_ADC_ACTL, val);
361 static kobj_method_t a10_mixer_methods[] = {
362 KOBJMETHOD(mixer_init, a10_mixer_init),
363 KOBJMETHOD(mixer_set, a10_mixer_set),
364 KOBJMETHOD(mixer_setrecsrc, a10_mixer_setrecsrc),
367 MIXER_DECLARE(a10_mixer);
374 #define H3_PR_CFG 0x00
375 #define H3_AC_PR_RST (1 << 18)
376 #define H3_AC_PR_RW (1 << 24)
377 #define H3_AC_PR_ADDR_SHIFT 16
378 #define H3_AC_PR_ADDR_MASK (0x1f << H3_AC_PR_ADDR_SHIFT)
379 #define H3_ACDA_PR_WDAT_SHIFT 8
380 #define H3_ACDA_PR_WDAT_MASK (0xff << H3_ACDA_PR_WDAT_SHIFT)
381 #define H3_ACDA_PR_RDAT_SHIFT 0
382 #define H3_ACDA_PR_RDAT_MASK (0xff << H3_ACDA_PR_RDAT_SHIFT)
384 #define H3_LOMIXSC 0x01
385 #define H3_LOMIXSC_LDAC (1 << 1)
386 #define H3_ROMIXSC 0x02
387 #define H3_ROMIXSC_RDAC (1 << 1)
388 #define H3_DAC_PA_SRC 0x03
389 #define H3_DACAREN (1 << 7)
390 #define H3_DACALEN (1 << 6)
391 #define H3_RMIXEN (1 << 5)
392 #define H3_LMIXEN (1 << 4)
393 #define H3_LINEIN_GCTR 0x05
394 #define H3_LINEING_SHIFT 4
395 #define H3_LINEING_MASK (0x7 << H3_LINEING_SHIFT)
396 #define H3_MIC_GCTR 0x06
397 #define H3_MIC1_GAIN_SHIFT 4
398 #define H3_MIC1_GAIN_MASK (0x7 << H3_MIC1_GAIN_SHIFT)
399 #define H3_MIC2_GAIN_SHIFT 0
400 #define H3_MIC2_GAIN_MASK (0x7 << H3_MIC2_GAIN_SHIFT)
401 #define H3_PAEN_CTR 0x07
402 #define H3_LINEOUTEN (1 << 7)
403 #define H3_LINEOUT_VOLC 0x09
404 #define H3_LINEOUTVOL_SHIFT 3
405 #define H3_LINEOUTVOL_MASK (0x1f << H3_LINEOUTVOL_SHIFT)
406 #define H3_MIC2G_LINEOUT_CTR 0x0a
407 #define H3_LINEOUT_LSEL (1 << 3)
408 #define H3_LINEOUT_RSEL (1 << 2)
409 #define H3_LADCMIXSC 0x0c
410 #define H3_RADCMIXSC 0x0d
411 #define H3_ADCMIXSC_MIC1 (1 << 6)
412 #define H3_ADCMIXSC_MIC2 (1 << 5)
413 #define H3_ADCMIXSC_LINEIN (1 << 2)
414 #define H3_ADCMIXSC_OMIXER (3 << 0)
415 #define H3_ADC_AP_EN 0x0f
416 #define H3_ADCREN (1 << 7)
417 #define H3_ADCLEN (1 << 6)
418 #define H3_ADCG_SHIFT 0
419 #define H3_ADCG_MASK (0x7 << H3_ADCG_SHIFT)
422 h3_pr_read(struct a10codec_info *sc, u_int addr)
426 /* Read current value */
427 val = bus_read_4(sc->res[1], H3_PR_CFG);
429 /* De-assert reset */
431 bus_write_4(sc->res[1], H3_PR_CFG, val);
435 bus_write_4(sc->res[1], H3_PR_CFG, val);
438 val &= ~H3_AC_PR_ADDR_MASK;
439 val |= (addr << H3_AC_PR_ADDR_SHIFT);
440 bus_write_4(sc->res[1], H3_PR_CFG, val);
443 return (bus_read_4(sc->res[1], H3_PR_CFG) & H3_ACDA_PR_RDAT_MASK);
447 h3_pr_write(struct a10codec_info *sc, u_int addr, u_int data)
451 /* Read current value */
452 val = bus_read_4(sc->res[1], H3_PR_CFG);
454 /* De-assert reset */
456 bus_write_4(sc->res[1], H3_PR_CFG, val);
459 val &= ~H3_AC_PR_ADDR_MASK;
460 val |= (addr << H3_AC_PR_ADDR_SHIFT);
461 bus_write_4(sc->res[1], H3_PR_CFG, val);
464 val &= ~H3_ACDA_PR_WDAT_MASK;
465 val |= (data << H3_ACDA_PR_WDAT_SHIFT);
466 bus_write_4(sc->res[1], H3_PR_CFG, val);
470 bus_write_4(sc->res[1], H3_PR_CFG, val);
474 h3_pr_set_clear(struct a10codec_info *sc, u_int addr, u_int set, u_int clr)
478 old = h3_pr_read(sc, addr);
479 new = set | (old & ~clr);
480 h3_pr_write(sc, addr, new);
484 h3_mixer_init(struct snd_mixer *m)
486 struct a10codec_info *sc = mix_getdevinfo(m);
488 mix_setdevs(m, SOUND_MASK_PCM | SOUND_MASK_VOLUME | SOUND_MASK_RECLEV |
489 SOUND_MASK_MIC | SOUND_MASK_LINE | SOUND_MASK_LINE1);
490 mix_setrecdevs(m, SOUND_MASK_MIC | SOUND_MASK_LINE | SOUND_MASK_LINE1 |
493 pcm_setflags(sc->dev, pcm_getflags(sc->dev) | SD_F_SOFTPCMVOL);
495 /* Right & Left LINEOUT enable */
496 h3_pr_set_clear(sc, H3_PAEN_CTR, H3_LINEOUTEN, 0);
497 h3_pr_set_clear(sc, H3_MIC2G_LINEOUT_CTR,
498 H3_LINEOUT_LSEL | H3_LINEOUT_RSEL, 0);
503 static const struct h3_mixer {
507 } h3_mixers[SOUND_MIXER_NRDEVICES] = {
508 [SOUND_MIXER_VOLUME] = { H3_LINEOUT_VOLC, H3_LINEOUTVOL_MASK,
509 H3_LINEOUTVOL_SHIFT },
510 [SOUND_MIXER_RECLEV] = { H3_ADC_AP_EN, H3_ADCG_MASK,
512 [SOUND_MIXER_LINE] = { H3_LINEIN_GCTR, H3_LINEING_MASK,
514 [SOUND_MIXER_MIC] = { H3_MIC_GCTR, H3_MIC1_GAIN_MASK,
515 H3_MIC1_GAIN_SHIFT },
516 [SOUND_MIXER_LINE1] = { H3_MIC_GCTR, H3_MIC2_GAIN_MASK,
517 H3_MIC2_GAIN_SHIFT },
521 h3_mixer_set(struct snd_mixer *m, unsigned dev, unsigned left,
524 struct a10codec_info *sc = mix_getdevinfo(m);
527 max = h3_mixers[dev].mask >> h3_mixers[dev].shift;
528 nvol = (left * max) / 100;
530 h3_pr_set_clear(sc, h3_mixers[dev].reg,
531 nvol << h3_mixers[dev].shift, h3_mixers[dev].mask);
533 left = right = (left * 100) / max;
534 return (left | (right << 8));
538 h3_mixer_setrecsrc(struct snd_mixer *m, uint32_t src)
540 struct a10codec_info *sc = mix_getdevinfo(m);
544 src &= (SOUND_MASK_LINE | SOUND_MASK_MIC |
545 SOUND_MASK_LINE1 | SOUND_MASK_IMIX);
547 if ((src & SOUND_MASK_LINE) != 0) /* line-in */
548 val |= H3_ADCMIXSC_LINEIN;
549 if ((src & SOUND_MASK_MIC) != 0) /* MIC1 */
550 val |= H3_ADCMIXSC_MIC1;
551 if ((src & SOUND_MASK_LINE1) != 0) /* MIC2 */
552 val |= H3_ADCMIXSC_MIC2;
553 if ((src & SOUND_MASK_IMIX) != 0) /* l/r output mixer */
554 val |= H3_ADCMIXSC_OMIXER;
556 h3_pr_write(sc, H3_LADCMIXSC, val);
557 h3_pr_write(sc, H3_RADCMIXSC, val);
563 h3_mute(struct a10codec_info *sc, int mute, int dir)
565 if (dir == PCMDIR_PLAY) {
567 /* Mute DAC l/r channels to output mixer */
568 h3_pr_set_clear(sc, H3_LOMIXSC, 0, H3_LOMIXSC_LDAC);
569 h3_pr_set_clear(sc, H3_ROMIXSC, 0, H3_ROMIXSC_RDAC);
570 /* Disable DAC analog l/r channels and output mixer */
571 h3_pr_set_clear(sc, H3_DAC_PA_SRC,
572 0, H3_DACAREN | H3_DACALEN | H3_RMIXEN | H3_LMIXEN);
574 /* Enable DAC analog l/r channels and output mixer */
575 h3_pr_set_clear(sc, H3_DAC_PA_SRC,
576 H3_DACAREN | H3_DACALEN | H3_RMIXEN | H3_LMIXEN, 0);
577 /* Unmute DAC l/r channels to output mixer */
578 h3_pr_set_clear(sc, H3_LOMIXSC, H3_LOMIXSC_LDAC, 0);
579 h3_pr_set_clear(sc, H3_ROMIXSC, H3_ROMIXSC_RDAC, 0);
583 /* Disable ADC analog l/r channels */
584 h3_pr_set_clear(sc, H3_ADC_AP_EN,
585 0, H3_ADCREN | H3_ADCLEN);
587 /* Enable ADC analog l/r channels */
588 h3_pr_set_clear(sc, H3_ADC_AP_EN,
589 H3_ADCREN | H3_ADCLEN, 0);
594 static kobj_method_t h3_mixer_methods[] = {
595 KOBJMETHOD(mixer_init, h3_mixer_init),
596 KOBJMETHOD(mixer_set, h3_mixer_set),
597 KOBJMETHOD(mixer_setrecsrc, h3_mixer_setrecsrc),
600 MIXER_DECLARE(h3_mixer);
608 a10codec_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
610 struct a10codec_chinfo *ch = arg;
615 ch->physaddr = segs[0].ds_addr;
619 a10codec_transfer(struct a10codec_chinfo *ch)
624 if (ch->dir == PCMDIR_PLAY) {
625 src = ch->physaddr + ch->pos;
629 dst = ch->physaddr + ch->pos;
632 error = SUNXI_DMA_TRANSFER(ch->dmac, ch->dmachan, src, dst,
636 device_printf(ch->parent->dev, "DMA transfer failed: %d\n",
642 a10codec_dmaconfig(struct a10codec_chinfo *ch)
644 struct a10codec_info *sc = ch->parent;
645 struct sunxi_dma_config conf;
647 memset(&conf, 0, sizeof(conf));
648 conf.src_width = conf.dst_width = 16;
649 conf.src_burst_len = conf.dst_burst_len = 4;
651 if (ch->dir == PCMDIR_PLAY) {
652 conf.dst_noincr = true;
653 conf.src_drqtype = sc->cfg->drqtype_sdram;
654 conf.dst_drqtype = sc->cfg->drqtype_codec;
656 conf.src_noincr = true;
657 conf.src_drqtype = sc->cfg->drqtype_codec;
658 conf.dst_drqtype = sc->cfg->drqtype_sdram;
661 SUNXI_DMA_SET_CONFIG(ch->dmac, ch->dmachan, &conf);
665 a10codec_dmaintr(void *priv)
667 struct a10codec_chinfo *ch = priv;
670 bufsize = sndbuf_getsize(ch->buffer);
672 ch->pos += ch->blocksize;
673 if (ch->pos >= bufsize)
677 chn_intr(ch->channel);
678 a10codec_transfer(ch);
683 a10codec_fs(struct a10codec_chinfo *ch)
687 return (DAC_FS_48KHZ);
689 return (DAC_FS_24KHZ);
691 return (DAC_FS_12KHZ);
693 return (DAC_FS_192KHZ);
695 return (DAC_FS_32KHZ);
697 return (DAC_FS_16KHZ);
699 return (DAC_FS_8KHZ);
701 return (DAC_FS_96KHZ);
703 return (DAC_FS_48KHZ);
708 a10codec_start(struct a10codec_chinfo *ch)
710 struct a10codec_info *sc = ch->parent;
715 if (ch->dir == PCMDIR_PLAY) {
717 CODEC_WRITE(sc, AC_DAC_FIFOC(sc), DAC_FIFOC_FIFO_FLUSH);
719 /* Clear DAC FIFO status */
720 CODEC_WRITE(sc, AC_DAC_FIFOS(sc),
721 CODEC_READ(sc, AC_DAC_FIFOS(sc)));
724 sc->cfg->mute(sc, 0, ch->dir);
726 /* Configure DAC DMA channel */
727 a10codec_dmaconfig(ch);
729 /* Configure DAC FIFO */
730 CODEC_WRITE(sc, AC_DAC_FIFOC(sc),
731 (AFMT_CHANNEL(ch->format) == 1 ? DAC_FIFOC_MONO_EN : 0) |
732 (a10codec_fs(ch) << DAC_FIFOC_FS_SHIFT) |
733 (FIFO_MODE_16_15_0 << DAC_FIFOC_FIFO_MODE_SHIFT) |
734 (DRQ_CLR_CNT << DAC_FIFOC_DRQ_CLR_CNT_SHIFT) |
735 (TX_TRIG_LEVEL << DAC_FIFOC_TX_TRIG_LEVEL_SHIFT));
738 val = CODEC_READ(sc, AC_DAC_FIFOC(sc));
739 val |= DAC_FIFOC_DRQ_EN;
740 CODEC_WRITE(sc, AC_DAC_FIFOC(sc), val);
743 CODEC_WRITE(sc, AC_ADC_FIFOC(sc), ADC_FIFOC_FIFO_FLUSH);
745 /* Clear ADC FIFO status */
746 CODEC_WRITE(sc, AC_ADC_FIFOS(sc),
747 CODEC_READ(sc, AC_ADC_FIFOS(sc)));
750 sc->cfg->mute(sc, 0, ch->dir);
752 /* Configure ADC DMA channel */
753 a10codec_dmaconfig(ch);
755 /* Configure ADC FIFO */
756 CODEC_WRITE(sc, AC_ADC_FIFOC(sc),
758 ADC_FIFOC_RX_FIFO_MODE |
759 (AFMT_CHANNEL(ch->format) == 1 ? ADC_FIFOC_MONO_EN : 0) |
760 (a10codec_fs(ch) << ADC_FIFOC_FS_SHIFT) |
761 (RX_TRIG_LEVEL << ADC_FIFOC_RX_TRIG_LEVEL_SHIFT));
764 val = CODEC_READ(sc, AC_ADC_FIFOC(sc));
765 val |= ADC_FIFOC_DRQ_EN;
766 CODEC_WRITE(sc, AC_ADC_FIFOC(sc), val);
769 /* Start DMA transfer */
770 a10codec_transfer(ch);
774 a10codec_stop(struct a10codec_chinfo *ch)
776 struct a10codec_info *sc = ch->parent;
778 /* Disable DMA channel */
779 SUNXI_DMA_HALT(ch->dmac, ch->dmachan);
781 sc->cfg->mute(sc, 1, ch->dir);
783 if (ch->dir == PCMDIR_PLAY) {
784 /* Disable DAC DRQ */
785 CODEC_WRITE(sc, AC_DAC_FIFOC(sc), 0);
787 /* Disable ADC DRQ */
788 CODEC_WRITE(sc, AC_ADC_FIFOC(sc), 0);
793 a10codec_chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b,
794 struct pcm_channel *c, int dir)
796 struct a10codec_info *sc = devinfo;
797 struct a10codec_chinfo *ch = dir == PCMDIR_PLAY ? &sc->play : &sc->rec;
802 error = ofw_bus_parse_xref_list_alloc(ofw_bus_get_node(sc->dev),
803 "dmas", "#dma-cells", dir == PCMDIR_PLAY ? 1 : 0,
804 &xref, &ncells, &cells);
806 device_printf(sc->dev, "cannot parse 'dmas' property\n");
815 ch->fifo = rman_get_start(sc->res[0]) +
816 (dir == PCMDIR_REC ? AC_ADC_RXDATA(sc) : AC_DAC_TXDATA(sc));
818 ch->dmac = OF_device_from_xref(xref);
819 if (ch->dmac == NULL) {
820 device_printf(sc->dev, "cannot find DMA controller\n");
821 device_printf(sc->dev, "xref = 0x%x\n", (u_int)xref);
824 ch->dmachan = SUNXI_DMA_ALLOC(ch->dmac, false, a10codec_dmaintr, ch);
825 if (ch->dmachan == NULL) {
826 device_printf(sc->dev, "cannot allocate DMA channel\n");
830 error = bus_dmamem_alloc(sc->dmat, &ch->dmaaddr,
831 BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &ch->dmamap);
833 device_printf(sc->dev, "cannot allocate channel buffer\n");
836 error = bus_dmamap_load(sc->dmat, ch->dmamap, ch->dmaaddr,
837 sc->dmasize, a10codec_dmamap_cb, ch, BUS_DMA_NOWAIT);
839 device_printf(sc->dev, "cannot load DMA map\n");
842 memset(ch->dmaaddr, 0, sc->dmasize);
844 if (sndbuf_setup(ch->buffer, ch->dmaaddr, sc->dmasize) != 0) {
845 device_printf(sc->dev, "cannot setup sndbuf\n");
853 a10codec_chan_free(kobj_t obj, void *data)
855 struct a10codec_chinfo *ch = data;
856 struct a10codec_info *sc = ch->parent;
858 SUNXI_DMA_FREE(ch->dmac, ch->dmachan);
859 bus_dmamap_unload(sc->dmat, ch->dmamap);
860 bus_dmamem_free(sc->dmat, ch->dmaaddr, ch->dmamap);
866 a10codec_chan_setformat(kobj_t obj, void *data, uint32_t format)
868 struct a10codec_chinfo *ch = data;
876 a10codec_chan_setspeed(kobj_t obj, void *data, uint32_t speed)
878 struct a10codec_chinfo *ch = data;
881 * The codec supports full duplex operation but both DAC and ADC
882 * use the same source clock (PLL2). Limit the available speeds to
883 * those supported by a 24576000 Hz input.
896 /* 96 KHz / 192 KHz mode only supported for playback */
897 if (ch->dir == PCMDIR_PLAY) {
921 a10codec_chan_setblocksize(kobj_t obj, void *data, uint32_t blocksize)
923 struct a10codec_chinfo *ch = data;
925 ch->blocksize = blocksize & ~3;
927 return (ch->blocksize);
931 a10codec_chan_trigger(kobj_t obj, void *data, int go)
933 struct a10codec_chinfo *ch = data;
934 struct a10codec_info *sc = ch->parent;
936 if (!PCMTRIG_COMMON(go))
939 snd_mtxlock(sc->lock);
953 snd_mtxunlock(sc->lock);
959 a10codec_chan_getptr(kobj_t obj, void *data)
961 struct a10codec_chinfo *ch = data;
966 static struct pcmchan_caps *
967 a10codec_chan_getcaps(kobj_t obj, void *data)
969 struct a10codec_chinfo *ch = data;
971 if (ch->dir == PCMDIR_PLAY) {
972 return (&a10codec_pcaps);
974 return (&a10codec_rcaps);
978 static kobj_method_t a10codec_chan_methods[] = {
979 KOBJMETHOD(channel_init, a10codec_chan_init),
980 KOBJMETHOD(channel_free, a10codec_chan_free),
981 KOBJMETHOD(channel_setformat, a10codec_chan_setformat),
982 KOBJMETHOD(channel_setspeed, a10codec_chan_setspeed),
983 KOBJMETHOD(channel_setblocksize, a10codec_chan_setblocksize),
984 KOBJMETHOD(channel_trigger, a10codec_chan_trigger),
985 KOBJMETHOD(channel_getptr, a10codec_chan_getptr),
986 KOBJMETHOD(channel_getcaps, a10codec_chan_getcaps),
989 CHANNEL_DECLARE(a10codec_chan);
996 static const struct a10codec_config a10_config = {
997 .mixer_class = &a10_mixer_class,
1000 .drqtype_sdram = 22,
1012 static const struct a10codec_config h3_config = {
1013 .mixer_class = &h3_mixer_class,
1015 .drqtype_codec = 15,
1028 static struct ofw_compat_data compat_data[] = {
1029 { "allwinner,sun4i-a10-codec", (uintptr_t)&a10_config },
1030 { "allwinner,sun7i-a20-codec", (uintptr_t)&a10_config },
1031 { "allwinner,sun8i-h3-codec", (uintptr_t)&h3_config },
1036 a10codec_probe(device_t dev)
1038 if (!ofw_bus_status_okay(dev))
1041 if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
1044 device_set_desc(dev, "Allwinner Audio Codec");
1045 return (BUS_PROBE_DEFAULT);
1049 a10codec_attach(device_t dev)
1051 struct a10codec_info *sc;
1052 char status[SND_STATUSLEN];
1053 struct gpiobus_pin *pa_pin;
1055 clk_t clk_bus, clk_codec;
1060 node = ofw_bus_get_node(dev);
1062 sc = malloc(sizeof(*sc), M_DEVBUF, M_WAITOK | M_ZERO);
1063 sc->cfg = (void *)ofw_bus_search_compatible(dev, compat_data)->ocd_data;
1065 sc->lock = snd_mtxcreate(device_get_nameunit(dev), "a10codec softc");
1067 if (bus_alloc_resources(dev, a10codec_spec, sc->res)) {
1068 device_printf(dev, "cannot allocate resources for device\n");
1073 sc->dmasize = 131072;
1074 error = bus_dma_tag_create(
1075 bus_get_dma_tag(dev),
1076 4, sc->dmasize, /* alignment, boundary */
1077 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
1078 BUS_SPACE_MAXADDR, /* highaddr */
1079 NULL, NULL, /* filter, filterarg */
1080 sc->dmasize, 1, /* maxsize, nsegs */
1081 sc->dmasize, 0, /* maxsegsize, flags */
1082 NULL, NULL, /* lockfunc, lockarg */
1085 device_printf(dev, "cannot create DMA tag\n");
1090 if (clk_get_by_ofw_name(dev, 0, "apb", &clk_bus) != 0 &&
1091 clk_get_by_ofw_name(dev, 0, "ahb", &clk_bus) != 0) {
1092 device_printf(dev, "cannot find bus clock\n");
1095 if (clk_get_by_ofw_name(dev, 0, "codec", &clk_codec) != 0) {
1096 device_printf(dev, "cannot find codec clock\n");
1100 /* Gating bus clock for codec */
1101 if (clk_enable(clk_bus) != 0) {
1102 device_printf(dev, "cannot enable bus clock\n");
1105 /* Activate audio codec clock. According to the A10 and A20 user
1106 * manuals, Audio_pll can be either 24.576MHz or 22.5792MHz. Most
1107 * audio sampling rates require an 24.576MHz input clock with the
1108 * exception of 44.1kHz, 22.05kHz, and 11.025kHz. Unfortunately,
1109 * both capture and playback use the same clock source so to
1110 * safely support independent full duplex operation, we use a fixed
1111 * 24.576MHz clock source and don't advertise native support for
1112 * the three sampling rates that require a 22.5792MHz input.
1114 error = clk_set_freq(clk_codec, 24576000, CLK_SET_ROUND_DOWN);
1116 device_printf(dev, "cannot set codec clock frequency\n");
1119 /* Enable audio codec clock */
1120 error = clk_enable(clk_codec);
1122 device_printf(dev, "cannot enable codec clock\n");
1126 /* De-assert hwreset */
1127 if (hwreset_get_by_ofw_name(dev, 0, "apb", &rst) == 0 ||
1128 hwreset_get_by_ofw_name(dev, 0, "ahb", &rst) == 0) {
1129 error = hwreset_deassert(rst);
1131 device_printf(dev, "cannot de-assert reset\n");
1137 val = CODEC_READ(sc, AC_DAC_DPC(sc));
1138 val |= DAC_DPC_EN_DA;
1139 CODEC_WRITE(sc, AC_DAC_DPC(sc), val);
1142 error = snd_setup_intr(dev, sc->irq, INTR_MPSAFE, a10codec_intr, sc,
1145 device_printf(dev, "could not setup interrupt handler\n");
1150 if (mixer_init(dev, sc->cfg->mixer_class, sc)) {
1151 device_printf(dev, "mixer_init failed\n");
1156 if (gpio_pin_get_by_ofw_property(dev, node, "allwinner,pa-gpios",
1158 error = gpio_pin_set_active(pa_pin, 1);
1160 device_printf(dev, "failed to unmute PA\n");
1163 pcm_setflags(dev, pcm_getflags(dev) | SD_F_MPSAFE);
1165 if (pcm_register(dev, sc, 1, 1)) {
1166 device_printf(dev, "pcm_register failed\n");
1170 pcm_addchan(dev, PCMDIR_PLAY, &a10codec_chan_class, sc);
1171 pcm_addchan(dev, PCMDIR_REC, &a10codec_chan_class, sc);
1173 snprintf(status, SND_STATUSLEN, "at %s", ofw_bus_get_name(dev));
1174 pcm_setstatus(dev, status);
1179 bus_release_resources(dev, a10codec_spec, sc->res);
1180 snd_mtxfree(sc->lock);
1186 static device_method_t a10codec_pcm_methods[] = {
1187 /* Device interface */
1188 DEVMETHOD(device_probe, a10codec_probe),
1189 DEVMETHOD(device_attach, a10codec_attach),
1194 static driver_t a10codec_pcm_driver = {
1196 a10codec_pcm_methods,
1200 DRIVER_MODULE(a10codec, simplebus, a10codec_pcm_driver, pcm_devclass, 0, 0);
1201 MODULE_DEPEND(a10codec, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
1202 MODULE_VERSION(a10codec, 1);