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/* $NetBSD: sun4i_a10_codec.c,v 1.3 2019/05/08 13:40:14 isaki Exp $ */
/*-
* Copyright (c) 2014-2017 Jared McNeill <jmcneill@invisible.ca>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: sun4i_a10_codec.c,v 1.3 2019/05/08 13:40:14 isaki Exp $");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/cpu.h>
#include <sys/device.h>
#include <sys/kmem.h>
#include <sys/bitops.h>
#include <sys/audioio.h>
#include <dev/audio/audio_if.h>
#include <arm/sunxi/sunxi_codec.h>
#define A10_DEFAULT_PAVOL 0x20
#define A10_DAC_ACTRL 0x10
#define A10_DACAREN __BIT(31)
#define A10_DACALEN __BIT(30)
#define A10_MIXEN __BIT(29)
#define A10_LNG __BIT(26)
#define A10_FMG __BITS(25,23)
#define A10_MICG __BITS(22,20)
#define A10_LLNS __BIT(19)
#define A10_RLNS __BIT(18)
#define A10_LFMS __BIT(17)
#define A10_RFMS __BIT(16)
#define A10_LDACLMIXS __BIT(15)
#define A10_RDACRMIXS __BIT(14)
#define A10_LDACRMIXS __BIT(13)
#define A10_MICLS __BIT(12)
#define A10_MICRS __BIT(11)
#define A10_DACPAS __BIT(8)
#define A10_MIXPAS __BIT(7)
#define A10_PAMUTE __BIT(6)
#define A10_PAVOL __BITS(5,0)
#define A10_ADC_ACTRL 0x28
#define A10_ADCREN __BIT(31)
#define A10_ADCLEN __BIT(30)
#define A10_PREG1EN __BIT(29)
#define A10_PREG2EN __BIT(28)
#define A10_VMICEN __BIT(27)
#define A10_PREG1 __BITS(26,25)
#define A10_PREG2 __BITS(24,23)
#define A10_ADCG __BITS(22,20)
#define A10_ADCIS __BITS(19,17)
#define A10_LNRDF __BIT(16)
#define A10_LNPREG __BITS(15,13)
#define A10_MIC1NEN __BIT(12)
#define A10_DITHER __BIT(8)
#define A10_PA_EN __BIT(4)
#define A10_DDE __BIT(3)
#define A10_COMPTEN __BIT(2)
#define A10_PTDBS __BITS(1,0)
enum a10_codec_mixer_ctrl {
A10_CODEC_OUTPUT_CLASS,
A10_CODEC_INPUT_CLASS,
A10_CODEC_OUTPUT_MASTER_VOLUME,
A10_CODEC_INPUT_DAC_VOLUME,
A10_CODEC_MIXER_CTRL_LAST
};
static const struct a10_codec_mixer {
const char * name;
enum a10_codec_mixer_ctrl mixer_class;
u_int reg;
u_int mask;
} a10_codec_mixers[A10_CODEC_MIXER_CTRL_LAST] = {
[A10_CODEC_OUTPUT_MASTER_VOLUME] = { AudioNmaster,
A10_CODEC_OUTPUT_CLASS, A10_DAC_ACTRL, A10_PAVOL },
[A10_CODEC_INPUT_DAC_VOLUME] = { AudioNdac,
A10_CODEC_INPUT_CLASS, A10_DAC_ACTRL, A10_PAVOL },
};
#define RD4(sc, reg) \
bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (reg))
#define WR4(sc, reg, val) \
bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (reg), (val))
#define SET4(sc, reg, mask) \
WR4((sc), (reg), RD4((sc), (reg)) | (mask))
#define CLR4(sc, reg, mask) \
WR4((sc), (reg), RD4((sc), (reg)) & ~(mask))
static int
a10_codec_init(struct sunxi_codec_softc *sc)
{
/* Unmute PA */
SET4(sc, A10_DAC_ACTRL, A10_PAMUTE);
/* Set initial volume */
CLR4(sc, A10_DAC_ACTRL, A10_PAVOL);
SET4(sc, A10_DAC_ACTRL, __SHIFTIN(A10_DEFAULT_PAVOL, A10_PAVOL));
/* Enable DAC analog l/r channels and output mixer */
SET4(sc, A10_DAC_ACTRL, A10_DACAREN | A10_DACALEN | A10_DACPAS);
/* Enable ADC analog l/r channels */
SET4(sc, A10_ADC_ACTRL, A10_ADCREN | A10_ADCLEN);
/* Enable PA */
SET4(sc, A10_ADC_ACTRL, A10_PA_EN);
return 0;
}
static void
a10_codec_mute(struct sunxi_codec_softc *sc, int mute, u_int mode)
{
if (mode == AUMODE_PLAY) {
if (sc->sc_pin_pa != NULL)
fdtbus_gpio_write(sc->sc_pin_pa, !mute);
}
}
static int
a10_codec_set_port(struct sunxi_codec_softc *sc, mixer_ctrl_t *mc)
{
const struct a10_codec_mixer *mix;
u_int val, shift;
int nvol;
switch (mc->dev) {
case A10_CODEC_OUTPUT_MASTER_VOLUME:
case A10_CODEC_INPUT_DAC_VOLUME:
mix = &a10_codec_mixers[mc->dev];
val = RD4(sc, mix->reg);
shift = 8 - fls32(__SHIFTOUT_MASK(mix->mask));
nvol = mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] >> shift;
val &= ~mix->mask;
val |= __SHIFTIN(nvol, mix->mask);
WR4(sc, mix->reg, val);
return 0;
}
return ENXIO;
}
static int
a10_codec_get_port(struct sunxi_codec_softc *sc, mixer_ctrl_t *mc)
{
const struct a10_codec_mixer *mix;
u_int val, shift;
int nvol;
switch (mc->dev) {
case A10_CODEC_OUTPUT_MASTER_VOLUME:
case A10_CODEC_INPUT_DAC_VOLUME:
mix = &a10_codec_mixers[mc->dev];
val = RD4(sc, mix->reg);
shift = 8 - fls32(__SHIFTOUT_MASK(mix->mask));
nvol = __SHIFTOUT(val, mix->mask) << shift;
mc->un.value.level[AUDIO_MIXER_LEVEL_LEFT] = nvol;
mc->un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = nvol;
return 0;
}
return ENXIO;
}
static int
a10_codec_query_devinfo(struct sunxi_codec_softc *sc, mixer_devinfo_t *di)
{
const struct a10_codec_mixer *mix;
switch (di->index) {
case A10_CODEC_OUTPUT_CLASS:
di->mixer_class = di->index;
strcpy(di->label.name, AudioCoutputs);
di->type = AUDIO_MIXER_CLASS;
di->next = di->prev = AUDIO_MIXER_LAST;
return 0;
case A10_CODEC_INPUT_CLASS:
di->mixer_class = di->index;
strcpy(di->label.name, AudioCinputs);
di->type = AUDIO_MIXER_CLASS;
di->next = di->prev = AUDIO_MIXER_LAST;
return 0;
case A10_CODEC_OUTPUT_MASTER_VOLUME:
case A10_CODEC_INPUT_DAC_VOLUME:
mix = &a10_codec_mixers[di->index];
di->mixer_class = mix->mixer_class;
strcpy(di->label.name, mix->name);
di->un.v.delta =
256 / (__SHIFTOUT_MASK(mix->mask) + 1);
di->type = AUDIO_MIXER_VALUE;
di->next = di->prev = AUDIO_MIXER_LAST;
di->un.v.num_channels = 2;
strcpy(di->un.v.units.name, AudioNvolume);
return 0;
}
return ENXIO;
}
const struct sunxi_codec_conf sun4i_a10_codecconf = {
.name = "A10 Audio Codec",
.init = a10_codec_init,
.mute = a10_codec_mute,
.set_port = a10_codec_set_port,
.get_port = a10_codec_get_port,
.query_devinfo = a10_codec_query_devinfo,
.DPC = 0x00,
.DAC_FIFOC = 0x04,
.DAC_FIFOS = 0x08,
.DAC_TXDATA = 0x0c,
.ADC_FIFOC = 0x1c,
.ADC_FIFOS = 0x20,
.ADC_RXDATA = 0x24,
.DAC_CNT = 0x30,
.ADC_CNT = 0x34,
};
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