forked from Minki/linux
ASoC: meson: add tdm output driver
Add Amlogic's axg tdm output driver which pulls data from FRDDR fifo and produce the TDM signals for 4 output lanes. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jerome Brunet
Mark Brown
parent
d60e4f1e4b
commit
c41c2a355b
@ -27,6 +27,14 @@ config SND_MESON_AXG_TDM_INTERFACE
|
||||
tristate
|
||||
select SND_MESON_AXG_TDM_FORMATTER
|
||||
|
||||
config SND_MESON_AXG_TDMOUT
|
||||
tristate "Amlogic AXG TDM Output Support"
|
||||
select SND_MESON_AXG_TDM_FORMATTER
|
||||
select SND_MESON_AXG_TDM_INTERFACE
|
||||
help
|
||||
Select Y or M to add support for TDM output formatter embedded
|
||||
in the Amlogic AXG SoC family
|
||||
|
||||
config SND_MESON_AXG_SPDIFOUT
|
||||
tristate "Amlogic AXG SPDIF Output Support"
|
||||
imply SND_SOC_SPDIF
|
||||
|
||||
@ -5,6 +5,7 @@ snd-soc-meson-axg-frddr-objs := axg-frddr.o
|
||||
snd-soc-meson-axg-toddr-objs := axg-toddr.o
|
||||
snd-soc-meson-axg-tdm-formatter-objs := axg-tdm-formatter.o
|
||||
snd-soc-meson-axg-tdm-interface-objs := axg-tdm-interface.o
|
||||
snd-soc-meson-axg-tdmout-objs := axg-tdmout.o
|
||||
snd-soc-meson-axg-spdifout-objs := axg-spdifout.o
|
||||
|
||||
obj-$(CONFIG_SND_MESON_AXG_FIFO) += snd-soc-meson-axg-fifo.o
|
||||
@ -12,4 +13,5 @@ obj-$(CONFIG_SND_MESON_AXG_FRDDR) += snd-soc-meson-axg-frddr.o
|
||||
obj-$(CONFIG_SND_MESON_AXG_TODDR) += snd-soc-meson-axg-toddr.o
|
||||
obj-$(CONFIG_SND_MESON_AXG_TDM_FORMATTER) += snd-soc-meson-axg-tdm-formatter.o
|
||||
obj-$(CONFIG_SND_MESON_AXG_TDM_INTERFACE) += snd-soc-meson-axg-tdm-interface.o
|
||||
obj-$(CONFIG_SND_MESON_AXG_TDMOUT) += snd-soc-meson-axg-tdmout.o
|
||||
obj-$(CONFIG_SND_MESON_AXG_SPDIFOUT) += snd-soc-meson-axg-spdifout.o
|
||||
|
||||
259
sound/soc/meson/axg-tdmout.c
Normal file
259
sound/soc/meson/axg-tdmout.c
Normal file
@ -0,0 +1,259 @@
|
||||
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
|
||||
//
|
||||
// Copyright (c) 2018 BayLibre, SAS.
|
||||
// Author: Jerome Brunet <jbrunet@baylibre.com>
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/of_platform.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <sound/soc.h>
|
||||
#include <sound/soc-dai.h>
|
||||
|
||||
#include "axg-tdm-formatter.h"
|
||||
|
||||
#define TDMOUT_CTRL0 0x00
|
||||
#define TDMOUT_CTRL0_BITNUM_MASK GENMASK(4, 0)
|
||||
#define TDMOUT_CTRL0_BITNUM(x) ((x) << 0)
|
||||
#define TDMOUT_CTRL0_SLOTNUM_MASK GENMASK(9, 5)
|
||||
#define TDMOUT_CTRL0_SLOTNUM(x) ((x) << 5)
|
||||
#define TDMOUT_CTRL0_INIT_BITNUM_MASK GENMASK(19, 15)
|
||||
#define TDMOUT_CTRL0_INIT_BITNUM(x) ((x) << 15)
|
||||
#define TDMOUT_CTRL0_ENABLE BIT(31)
|
||||
#define TDMOUT_CTRL0_RST_OUT BIT(29)
|
||||
#define TDMOUT_CTRL0_RST_IN BIT(28)
|
||||
#define TDMOUT_CTRL1 0x04
|
||||
#define TDMOUT_CTRL1_TYPE_MASK GENMASK(6, 4)
|
||||
#define TDMOUT_CTRL1_TYPE(x) ((x) << 4)
|
||||
#define TDMOUT_CTRL1_MSB_POS_MASK GENMASK(12, 8)
|
||||
#define TDMOUT_CTRL1_MSB_POS(x) ((x) << 8)
|
||||
#define TDMOUT_CTRL1_SEL_SHIFT 24
|
||||
#define TDMOUT_CTRL1_GAIN_EN 26
|
||||
#define TDMOUT_CTRL1_WS_INV BIT(28)
|
||||
#define TDMOUT_SWAP 0x08
|
||||
#define TDMOUT_MASK0 0x0c
|
||||
#define TDMOUT_MASK1 0x10
|
||||
#define TDMOUT_MASK2 0x14
|
||||
#define TDMOUT_MASK3 0x18
|
||||
#define TDMOUT_STAT 0x1c
|
||||
#define TDMOUT_GAIN0 0x20
|
||||
#define TDMOUT_GAIN1 0x24
|
||||
#define TDMOUT_MUTE_VAL 0x28
|
||||
#define TDMOUT_MUTE0 0x2c
|
||||
#define TDMOUT_MUTE1 0x30
|
||||
#define TDMOUT_MUTE2 0x34
|
||||
#define TDMOUT_MUTE3 0x38
|
||||
#define TDMOUT_MASK_VAL 0x3c
|
||||
|
||||
static const struct regmap_config axg_tdmout_regmap_cfg = {
|
||||
.reg_bits = 32,
|
||||
.val_bits = 32,
|
||||
.reg_stride = 4,
|
||||
.max_register = TDMOUT_MASK_VAL,
|
||||
};
|
||||
|
||||
static const struct snd_kcontrol_new axg_tdmout_controls[] = {
|
||||
SOC_DOUBLE("Lane 0 Volume", TDMOUT_GAIN0, 0, 8, 255, 0),
|
||||
SOC_DOUBLE("Lane 1 Volume", TDMOUT_GAIN0, 16, 24, 255, 0),
|
||||
SOC_DOUBLE("Lane 2 Volume", TDMOUT_GAIN1, 0, 8, 255, 0),
|
||||
SOC_DOUBLE("Lane 3 Volume", TDMOUT_GAIN1, 16, 24, 255, 0),
|
||||
SOC_SINGLE("Gain Enable Switch", TDMOUT_CTRL1,
|
||||
TDMOUT_CTRL1_GAIN_EN, 1, 0),
|
||||
};
|
||||
|
||||
static const char * const tdmout_sel_texts[] = {
|
||||
"IN 0", "IN 1", "IN 2",
|
||||
};
|
||||
|
||||
static SOC_ENUM_SINGLE_DECL(axg_tdmout_sel_enum, TDMOUT_CTRL1,
|
||||
TDMOUT_CTRL1_SEL_SHIFT, tdmout_sel_texts);
|
||||
|
||||
static const struct snd_kcontrol_new axg_tdmout_in_mux =
|
||||
SOC_DAPM_ENUM("Input Source", axg_tdmout_sel_enum);
|
||||
|
||||
static struct snd_soc_dai *
|
||||
axg_tdmout_get_be(struct snd_soc_dapm_widget *w)
|
||||
{
|
||||
struct snd_soc_dapm_path *p = NULL;
|
||||
struct snd_soc_dai *be;
|
||||
|
||||
snd_soc_dapm_widget_for_each_sink_path(w, p) {
|
||||
if (!p->connect)
|
||||
continue;
|
||||
|
||||
if (p->sink->id == snd_soc_dapm_dai_in)
|
||||
return (struct snd_soc_dai *)p->sink->priv;
|
||||
|
||||
be = axg_tdmout_get_be(p->sink);
|
||||
if (be)
|
||||
return be;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static struct axg_tdm_stream *
|
||||
axg_tdmout_get_tdm_stream(struct snd_soc_dapm_widget *w)
|
||||
{
|
||||
struct snd_soc_dai *be = axg_tdmout_get_be(w);
|
||||
|
||||
if (!be)
|
||||
return NULL;
|
||||
|
||||
return be->playback_dma_data;
|
||||
}
|
||||
|
||||
static void axg_tdmout_enable(struct regmap *map)
|
||||
{
|
||||
/* Apply both reset */
|
||||
regmap_update_bits(map, TDMOUT_CTRL0,
|
||||
TDMOUT_CTRL0_RST_OUT | TDMOUT_CTRL0_RST_IN, 0);
|
||||
|
||||
/* Clear out reset before in reset */
|
||||
regmap_update_bits(map, TDMOUT_CTRL0,
|
||||
TDMOUT_CTRL0_RST_OUT, TDMOUT_CTRL0_RST_OUT);
|
||||
regmap_update_bits(map, TDMOUT_CTRL0,
|
||||
TDMOUT_CTRL0_RST_IN, TDMOUT_CTRL0_RST_IN);
|
||||
|
||||
/* Actually enable tdmout */
|
||||
regmap_update_bits(map, TDMOUT_CTRL0,
|
||||
TDMOUT_CTRL0_ENABLE, TDMOUT_CTRL0_ENABLE);
|
||||
}
|
||||
|
||||
static void axg_tdmout_disable(struct regmap *map)
|
||||
{
|
||||
regmap_update_bits(map, TDMOUT_CTRL0, TDMOUT_CTRL0_ENABLE, 0);
|
||||
}
|
||||
|
||||
static int axg_tdmout_prepare(struct regmap *map, struct axg_tdm_stream *ts)
|
||||
{
|
||||
unsigned int val = 0;
|
||||
|
||||
/* Set the stream skew */
|
||||
switch (ts->iface->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
||||
case SND_SOC_DAIFMT_I2S:
|
||||
case SND_SOC_DAIFMT_DSP_A:
|
||||
val |= TDMOUT_CTRL0_INIT_BITNUM(1);
|
||||
break;
|
||||
|
||||
case SND_SOC_DAIFMT_LEFT_J:
|
||||
case SND_SOC_DAIFMT_RIGHT_J:
|
||||
case SND_SOC_DAIFMT_DSP_B:
|
||||
val |= TDMOUT_CTRL0_INIT_BITNUM(2);
|
||||
break;
|
||||
|
||||
default:
|
||||
pr_err("Unsupported format: %u\n",
|
||||
ts->iface->fmt & SND_SOC_DAIFMT_FORMAT_MASK);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* Set the slot width */
|
||||
val |= TDMOUT_CTRL0_BITNUM(ts->iface->slot_width - 1);
|
||||
|
||||
/* Set the slot number */
|
||||
val |= TDMOUT_CTRL0_SLOTNUM(ts->iface->slots - 1);
|
||||
|
||||
regmap_update_bits(map, TDMOUT_CTRL0,
|
||||
TDMOUT_CTRL0_INIT_BITNUM_MASK |
|
||||
TDMOUT_CTRL0_BITNUM_MASK |
|
||||
TDMOUT_CTRL0_SLOTNUM_MASK, val);
|
||||
|
||||
/* Set the sample width */
|
||||
val = TDMOUT_CTRL1_MSB_POS(ts->width - 1);
|
||||
|
||||
/* FIFO data are arranged in chunks of 64bits */
|
||||
switch (ts->physical_width) {
|
||||
case 8:
|
||||
/* 8 samples of 8 bits */
|
||||
val |= TDMOUT_CTRL1_TYPE(0);
|
||||
break;
|
||||
case 16:
|
||||
/* 4 samples of 16 bits - right justified */
|
||||
val |= TDMOUT_CTRL1_TYPE(2);
|
||||
break;
|
||||
case 32:
|
||||
/* 2 samples of 32 bits - right justified */
|
||||
val |= TDMOUT_CTRL1_TYPE(4);
|
||||
break;
|
||||
default:
|
||||
pr_err("Unsupported physical width: %u\n",
|
||||
ts->physical_width);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* If the sample clock is inverted, invert it back for the formatter */
|
||||
if (axg_tdm_lrclk_invert(ts->iface->fmt))
|
||||
val |= TDMOUT_CTRL1_WS_INV;
|
||||
|
||||
regmap_update_bits(map, TDMOUT_CTRL1,
|
||||
(TDMOUT_CTRL1_TYPE_MASK | TDMOUT_CTRL1_MSB_POS_MASK |
|
||||
TDMOUT_CTRL1_WS_INV), val);
|
||||
|
||||
/* Set static swap mask configuration */
|
||||
regmap_write(map, TDMOUT_SWAP, 0x76543210);
|
||||
|
||||
return axg_tdm_formatter_set_channel_masks(map, ts, TDMOUT_MASK0);
|
||||
}
|
||||
|
||||
static const struct snd_soc_dapm_widget axg_tdmout_dapm_widgets[] = {
|
||||
SND_SOC_DAPM_AIF_IN("IN 0", NULL, 0, SND_SOC_NOPM, 0, 0),
|
||||
SND_SOC_DAPM_AIF_IN("IN 1", NULL, 0, SND_SOC_NOPM, 0, 0),
|
||||
SND_SOC_DAPM_AIF_IN("IN 2", NULL, 0, SND_SOC_NOPM, 0, 0),
|
||||
SND_SOC_DAPM_MUX("SRC SEL", SND_SOC_NOPM, 0, 0, &axg_tdmout_in_mux),
|
||||
SND_SOC_DAPM_PGA_E("ENC", SND_SOC_NOPM, 0, 0, NULL, 0,
|
||||
axg_tdm_formatter_event,
|
||||
(SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD)),
|
||||
SND_SOC_DAPM_AIF_OUT("OUT", NULL, 0, SND_SOC_NOPM, 0, 0),
|
||||
};
|
||||
|
||||
static const struct snd_soc_dapm_route axg_tdmout_dapm_routes[] = {
|
||||
{ "SRC SEL", "IN 0", "IN 0" },
|
||||
{ "SRC SEL", "IN 1", "IN 1" },
|
||||
{ "SRC SEL", "IN 2", "IN 2" },
|
||||
{ "ENC", NULL, "SRC SEL" },
|
||||
{ "OUT", NULL, "ENC" },
|
||||
};
|
||||
|
||||
static const struct snd_soc_component_driver axg_tdmout_component_drv = {
|
||||
.controls = axg_tdmout_controls,
|
||||
.num_controls = ARRAY_SIZE(axg_tdmout_controls),
|
||||
.dapm_widgets = axg_tdmout_dapm_widgets,
|
||||
.num_dapm_widgets = ARRAY_SIZE(axg_tdmout_dapm_widgets),
|
||||
.dapm_routes = axg_tdmout_dapm_routes,
|
||||
.num_dapm_routes = ARRAY_SIZE(axg_tdmout_dapm_routes),
|
||||
};
|
||||
|
||||
static const struct axg_tdm_formatter_ops axg_tdmout_ops = {
|
||||
.get_stream = axg_tdmout_get_tdm_stream,
|
||||
.prepare = axg_tdmout_prepare,
|
||||
.enable = axg_tdmout_enable,
|
||||
.disable = axg_tdmout_disable,
|
||||
};
|
||||
|
||||
static const struct axg_tdm_formatter_driver axg_tdmout_drv = {
|
||||
.component_drv = &axg_tdmout_component_drv,
|
||||
.regmap_cfg = &axg_tdmout_regmap_cfg,
|
||||
.ops = &axg_tdmout_ops,
|
||||
.invert_sclk = true,
|
||||
};
|
||||
|
||||
static const struct of_device_id axg_tdmout_of_match[] = {
|
||||
{
|
||||
.compatible = "amlogic,axg-tdmout",
|
||||
.data = &axg_tdmout_drv,
|
||||
}, {}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, axg_tdmout_of_match);
|
||||
|
||||
static struct platform_driver axg_tdmout_pdrv = {
|
||||
.probe = axg_tdm_formatter_probe,
|
||||
.driver = {
|
||||
.name = "axg-tdmout",
|
||||
.of_match_table = axg_tdmout_of_match,
|
||||
},
|
||||
};
|
||||
module_platform_driver(axg_tdmout_pdrv);
|
||||
|
||||
MODULE_DESCRIPTION("Amlogic AXG TDM output formatter driver");
|
||||
MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Loading…
Reference in New Issue
Block a user