mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 22:24:09 +08:00
ASoC: fsl: Add Audio Mixer CPU DAI driver
This patch implements Audio Mixer CPU DAI driver for NXP iMX8 SOCs. The Audio Mixer is a on-chip functional module that allows mixing of two audio streams into a single audio stream. Audio Mixer datasheet is available here: https://www.nxp.com/docs/en/reference-manual/IMX8DQXPRM.pdf Signed-off-by: Viorel Suman <viorel.suman@nxp.com> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Viorel Suman
Mark Brown
parent
64f01d2b5c
commit
be1df61cf0
@ -24,6 +24,13 @@ config SND_SOC_FSL_SAI
|
|||||||
This option is only useful for out-of-tree drivers since
|
This option is only useful for out-of-tree drivers since
|
||||||
in-tree drivers select it automatically.
|
in-tree drivers select it automatically.
|
||||||
|
|
||||||
|
config SND_SOC_FSL_AUDMIX
|
||||||
|
tristate "Audio Mixer (AUDMIX) module support"
|
||||||
|
select REGMAP_MMIO
|
||||||
|
help
|
||||||
|
Say Y if you want to add Audio Mixer (AUDMIX)
|
||||||
|
support for the NXP iMX CPUs.
|
||||||
|
|
||||||
config SND_SOC_FSL_SSI
|
config SND_SOC_FSL_SSI
|
||||||
tristate "Synchronous Serial Interface module (SSI) support"
|
tristate "Synchronous Serial Interface module (SSI) support"
|
||||||
select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
|
select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
|
||||||
|
|||||||
@ -12,6 +12,7 @@ snd-soc-p1022-rdk-objs := p1022_rdk.o
|
|||||||
obj-$(CONFIG_SND_SOC_P1022_RDK) += snd-soc-p1022-rdk.o
|
obj-$(CONFIG_SND_SOC_P1022_RDK) += snd-soc-p1022-rdk.o
|
||||||
|
|
||||||
# Freescale SSI/DMA/SAI/SPDIF Support
|
# Freescale SSI/DMA/SAI/SPDIF Support
|
||||||
|
snd-soc-fsl-audmix-objs := fsl_audmix.o
|
||||||
snd-soc-fsl-asoc-card-objs := fsl-asoc-card.o
|
snd-soc-fsl-asoc-card-objs := fsl-asoc-card.o
|
||||||
snd-soc-fsl-asrc-objs := fsl_asrc.o fsl_asrc_dma.o
|
snd-soc-fsl-asrc-objs := fsl_asrc.o fsl_asrc_dma.o
|
||||||
snd-soc-fsl-sai-objs := fsl_sai.o
|
snd-soc-fsl-sai-objs := fsl_sai.o
|
||||||
@ -22,6 +23,8 @@ snd-soc-fsl-esai-objs := fsl_esai.o
|
|||||||
snd-soc-fsl-micfil-objs := fsl_micfil.o
|
snd-soc-fsl-micfil-objs := fsl_micfil.o
|
||||||
snd-soc-fsl-utils-objs := fsl_utils.o
|
snd-soc-fsl-utils-objs := fsl_utils.o
|
||||||
snd-soc-fsl-dma-objs := fsl_dma.o
|
snd-soc-fsl-dma-objs := fsl_dma.o
|
||||||
|
|
||||||
|
obj-$(CONFIG_SND_SOC_FSL_AUDMIX) += snd-soc-fsl-audmix.o
|
||||||
obj-$(CONFIG_SND_SOC_FSL_ASOC_CARD) += snd-soc-fsl-asoc-card.o
|
obj-$(CONFIG_SND_SOC_FSL_ASOC_CARD) += snd-soc-fsl-asoc-card.o
|
||||||
obj-$(CONFIG_SND_SOC_FSL_ASRC) += snd-soc-fsl-asrc.o
|
obj-$(CONFIG_SND_SOC_FSL_ASRC) += snd-soc-fsl-asrc.o
|
||||||
obj-$(CONFIG_SND_SOC_FSL_SAI) += snd-soc-fsl-sai.o
|
obj-$(CONFIG_SND_SOC_FSL_SAI) += snd-soc-fsl-sai.o
|
||||||
|
|||||||
576
sound/soc/fsl/fsl_audmix.c
Normal file
576
sound/soc/fsl/fsl_audmix.c
Normal file
@ -0,0 +1,576 @@
|
|||||||
|
// SPDX-License-Identifier: GPL-2.0
|
||||||
|
/*
|
||||||
|
* NXP AUDMIX ALSA SoC Digital Audio Interface (DAI) driver
|
||||||
|
*
|
||||||
|
* Copyright 2017 NXP
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <linux/clk.h>
|
||||||
|
#include <linux/module.h>
|
||||||
|
#include <linux/of_platform.h>
|
||||||
|
#include <linux/pm_runtime.h>
|
||||||
|
#include <sound/soc.h>
|
||||||
|
#include <sound/pcm_params.h>
|
||||||
|
|
||||||
|
#include "fsl_audmix.h"
|
||||||
|
|
||||||
|
#define SOC_ENUM_SINGLE_S(xreg, xshift, xtexts) \
|
||||||
|
SOC_ENUM_SINGLE(xreg, xshift, ARRAY_SIZE(xtexts), xtexts)
|
||||||
|
|
||||||
|
static const char
|
||||||
|
*tdm_sel[] = { "TDM1", "TDM2", },
|
||||||
|
*mode_sel[] = { "Disabled", "TDM1", "TDM2", "Mixed", },
|
||||||
|
*width_sel[] = { "16b", "18b", "20b", "24b", "32b", },
|
||||||
|
*endis_sel[] = { "Disabled", "Enabled", },
|
||||||
|
*updn_sel[] = { "Downward", "Upward", },
|
||||||
|
*mask_sel[] = { "Unmask", "Mask", };
|
||||||
|
|
||||||
|
static const struct soc_enum fsl_audmix_enum[] = {
|
||||||
|
/* FSL_AUDMIX_CTR enums */
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_MIXCLK_SHIFT, tdm_sel),
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_OUTSRC_SHIFT, mode_sel),
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_OUTWIDTH_SHIFT, width_sel),
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_MASKRTDF_SHIFT, mask_sel),
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_MASKCKDF_SHIFT, mask_sel),
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_SYNCMODE_SHIFT, endis_sel),
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_SYNCSRC_SHIFT, tdm_sel),
|
||||||
|
/* FSL_AUDMIX_ATCR0 enums */
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_ATCR0, 0, endis_sel),
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_ATCR0, 1, updn_sel),
|
||||||
|
/* FSL_AUDMIX_ATCR1 enums */
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_ATCR1, 0, endis_sel),
|
||||||
|
SOC_ENUM_SINGLE_S(FSL_AUDMIX_ATCR1, 1, updn_sel),
|
||||||
|
};
|
||||||
|
|
||||||
|
struct fsl_audmix_state {
|
||||||
|
u8 tdms;
|
||||||
|
u8 clk;
|
||||||
|
char msg[64];
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct fsl_audmix_state prms[4][4] = {{
|
||||||
|
/* DIS->DIS, do nothing */
|
||||||
|
{ .tdms = 0, .clk = 0, .msg = "" },
|
||||||
|
/* DIS->TDM1*/
|
||||||
|
{ .tdms = 1, .clk = 1, .msg = "DIS->TDM1: TDM1 not started!\n" },
|
||||||
|
/* DIS->TDM2*/
|
||||||
|
{ .tdms = 2, .clk = 2, .msg = "DIS->TDM2: TDM2 not started!\n" },
|
||||||
|
/* DIS->MIX */
|
||||||
|
{ .tdms = 3, .clk = 0, .msg = "DIS->MIX: Please start both TDMs!\n" }
|
||||||
|
}, { /* TDM1->DIS */
|
||||||
|
{ .tdms = 1, .clk = 0, .msg = "TDM1->DIS: TDM1 not started!\n" },
|
||||||
|
/* TDM1->TDM1, do nothing */
|
||||||
|
{ .tdms = 0, .clk = 0, .msg = "" },
|
||||||
|
/* TDM1->TDM2 */
|
||||||
|
{ .tdms = 3, .clk = 2, .msg = "TDM1->TDM2: Please start both TDMs!\n" },
|
||||||
|
/* TDM1->MIX */
|
||||||
|
{ .tdms = 3, .clk = 0, .msg = "TDM1->MIX: Please start both TDMs!\n" }
|
||||||
|
}, { /* TDM2->DIS */
|
||||||
|
{ .tdms = 2, .clk = 0, .msg = "TDM2->DIS: TDM2 not started!\n" },
|
||||||
|
/* TDM2->TDM1 */
|
||||||
|
{ .tdms = 3, .clk = 1, .msg = "TDM2->TDM1: Please start both TDMs!\n" },
|
||||||
|
/* TDM2->TDM2, do nothing */
|
||||||
|
{ .tdms = 0, .clk = 0, .msg = "" },
|
||||||
|
/* TDM2->MIX */
|
||||||
|
{ .tdms = 3, .clk = 0, .msg = "TDM2->MIX: Please start both TDMs!\n" }
|
||||||
|
}, { /* MIX->DIS */
|
||||||
|
{ .tdms = 3, .clk = 0, .msg = "MIX->DIS: Please start both TDMs!\n" },
|
||||||
|
/* MIX->TDM1 */
|
||||||
|
{ .tdms = 3, .clk = 1, .msg = "MIX->TDM1: Please start both TDMs!\n" },
|
||||||
|
/* MIX->TDM2 */
|
||||||
|
{ .tdms = 3, .clk = 2, .msg = "MIX->TDM2: Please start both TDMs!\n" },
|
||||||
|
/* MIX->MIX, do nothing */
|
||||||
|
{ .tdms = 0, .clk = 0, .msg = "" }
|
||||||
|
}, };
|
||||||
|
|
||||||
|
static int fsl_audmix_state_trans(struct snd_soc_component *comp,
|
||||||
|
unsigned int *mask, unsigned int *ctr,
|
||||||
|
const struct fsl_audmix_state prm)
|
||||||
|
{
|
||||||
|
struct fsl_audmix *priv = snd_soc_component_get_drvdata(comp);
|
||||||
|
/* Enforce all required TDMs are started */
|
||||||
|
if ((priv->tdms & prm.tdms) != prm.tdms) {
|
||||||
|
dev_dbg(comp->dev, prm.msg);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (prm.clk) {
|
||||||
|
case 1:
|
||||||
|
case 2:
|
||||||
|
/* Set mix clock */
|
||||||
|
(*mask) |= FSL_AUDMIX_CTR_MIXCLK_MASK;
|
||||||
|
(*ctr) |= FSL_AUDMIX_CTR_MIXCLK(prm.clk - 1);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int fsl_audmix_put_mix_clk_src(struct snd_kcontrol *kcontrol,
|
||||||
|
struct snd_ctl_elem_value *ucontrol)
|
||||||
|
{
|
||||||
|
struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
|
||||||
|
struct fsl_audmix *priv = snd_soc_component_get_drvdata(comp);
|
||||||
|
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
|
||||||
|
unsigned int *item = ucontrol->value.enumerated.item;
|
||||||
|
unsigned int reg_val, val, mix_clk;
|
||||||
|
int ret = 0;
|
||||||
|
|
||||||
|
/* Get current state */
|
||||||
|
ret = snd_soc_component_read(comp, FSL_AUDMIX_CTR, ®_val);
|
||||||
|
if (ret)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
mix_clk = ((reg_val & FSL_AUDMIX_CTR_MIXCLK_MASK)
|
||||||
|
>> FSL_AUDMIX_CTR_MIXCLK_SHIFT);
|
||||||
|
val = snd_soc_enum_item_to_val(e, item[0]);
|
||||||
|
|
||||||
|
dev_dbg(comp->dev, "TDMs=x%08x, val=x%08x\n", priv->tdms, val);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Ensure the current selected mixer clock is available
|
||||||
|
* for configuration propagation
|
||||||
|
*/
|
||||||
|
if (!(priv->tdms & BIT(mix_clk))) {
|
||||||
|
dev_err(comp->dev,
|
||||||
|
"Started TDM%d needed for config propagation!\n",
|
||||||
|
mix_clk + 1);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!(priv->tdms & BIT(val))) {
|
||||||
|
dev_err(comp->dev,
|
||||||
|
"The selected clock source has no TDM%d enabled!\n",
|
||||||
|
val + 1);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
return snd_soc_put_enum_double(kcontrol, ucontrol);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int fsl_audmix_put_out_src(struct snd_kcontrol *kcontrol,
|
||||||
|
struct snd_ctl_elem_value *ucontrol)
|
||||||
|
{
|
||||||
|
struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
|
||||||
|
struct fsl_audmix *priv = snd_soc_component_get_drvdata(comp);
|
||||||
|
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
|
||||||
|
unsigned int *item = ucontrol->value.enumerated.item;
|
||||||
|
u32 out_src, mix_clk;
|
||||||
|
unsigned int reg_val, val, mask = 0, ctr = 0;
|
||||||
|
int ret = 0;
|
||||||
|
|
||||||
|
/* Get current state */
|
||||||
|
ret = snd_soc_component_read(comp, FSL_AUDMIX_CTR, ®_val);
|
||||||
|
if (ret)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
/* "From" state */
|
||||||
|
out_src = ((reg_val & FSL_AUDMIX_CTR_OUTSRC_MASK)
|
||||||
|
>> FSL_AUDMIX_CTR_OUTSRC_SHIFT);
|
||||||
|
mix_clk = ((reg_val & FSL_AUDMIX_CTR_MIXCLK_MASK)
|
||||||
|
>> FSL_AUDMIX_CTR_MIXCLK_SHIFT);
|
||||||
|
|
||||||
|
/* "To" state */
|
||||||
|
val = snd_soc_enum_item_to_val(e, item[0]);
|
||||||
|
|
||||||
|
dev_dbg(comp->dev, "TDMs=x%08x, val=x%08x\n", priv->tdms, val);
|
||||||
|
|
||||||
|
/* Check if state is changing ... */
|
||||||
|
if (out_src == val)
|
||||||
|
return 0;
|
||||||
|
/**
|
||||||
|
* Ensure the current selected mixer clock is available
|
||||||
|
* for configuration propagation
|
||||||
|
*/
|
||||||
|
if (!(priv->tdms & BIT(mix_clk))) {
|
||||||
|
dev_err(comp->dev,
|
||||||
|
"Started TDM%d needed for config propagation!\n",
|
||||||
|
mix_clk + 1);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Check state transition constraints */
|
||||||
|
ret = fsl_audmix_state_trans(comp, &mask, &ctr, prms[out_src][val]);
|
||||||
|
if (ret)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
/* Complete transition to new state */
|
||||||
|
mask |= FSL_AUDMIX_CTR_OUTSRC_MASK;
|
||||||
|
ctr |= FSL_AUDMIX_CTR_OUTSRC(val);
|
||||||
|
|
||||||
|
return snd_soc_component_update_bits(comp, FSL_AUDMIX_CTR, mask, ctr);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct snd_kcontrol_new fsl_audmix_snd_controls[] = {
|
||||||
|
/* FSL_AUDMIX_CTR controls */
|
||||||
|
SOC_ENUM_EXT("Mixing Clock Source", fsl_audmix_enum[0],
|
||||||
|
snd_soc_get_enum_double, fsl_audmix_put_mix_clk_src),
|
||||||
|
SOC_ENUM_EXT("Output Source", fsl_audmix_enum[1],
|
||||||
|
snd_soc_get_enum_double, fsl_audmix_put_out_src),
|
||||||
|
SOC_ENUM("Output Width", fsl_audmix_enum[2]),
|
||||||
|
SOC_ENUM("Frame Rate Diff Error", fsl_audmix_enum[3]),
|
||||||
|
SOC_ENUM("Clock Freq Diff Error", fsl_audmix_enum[4]),
|
||||||
|
SOC_ENUM("Sync Mode Config", fsl_audmix_enum[5]),
|
||||||
|
SOC_ENUM("Sync Mode Clk Source", fsl_audmix_enum[6]),
|
||||||
|
/* TDM1 Attenuation controls */
|
||||||
|
SOC_ENUM("TDM1 Attenuation", fsl_audmix_enum[7]),
|
||||||
|
SOC_ENUM("TDM1 Attenuation Direction", fsl_audmix_enum[8]),
|
||||||
|
SOC_SINGLE("TDM1 Attenuation Step Divider", FSL_AUDMIX_ATCR0,
|
||||||
|
2, 0x00fff, 0),
|
||||||
|
SOC_SINGLE("TDM1 Attenuation Initial Value", FSL_AUDMIX_ATIVAL0,
|
||||||
|
0, 0x3ffff, 0),
|
||||||
|
SOC_SINGLE("TDM1 Attenuation Step Up Factor", FSL_AUDMIX_ATSTPUP0,
|
||||||
|
0, 0x3ffff, 0),
|
||||||
|
SOC_SINGLE("TDM1 Attenuation Step Down Factor", FSL_AUDMIX_ATSTPDN0,
|
||||||
|
0, 0x3ffff, 0),
|
||||||
|
SOC_SINGLE("TDM1 Attenuation Step Target", FSL_AUDMIX_ATSTPTGT0,
|
||||||
|
0, 0x3ffff, 0),
|
||||||
|
/* TDM2 Attenuation controls */
|
||||||
|
SOC_ENUM("TDM2 Attenuation", fsl_audmix_enum[9]),
|
||||||
|
SOC_ENUM("TDM2 Attenuation Direction", fsl_audmix_enum[10]),
|
||||||
|
SOC_SINGLE("TDM2 Attenuation Step Divider", FSL_AUDMIX_ATCR1,
|
||||||
|
2, 0x00fff, 0),
|
||||||
|
SOC_SINGLE("TDM2 Attenuation Initial Value", FSL_AUDMIX_ATIVAL1,
|
||||||
|
0, 0x3ffff, 0),
|
||||||
|
SOC_SINGLE("TDM2 Attenuation Step Up Factor", FSL_AUDMIX_ATSTPUP1,
|
||||||
|
0, 0x3ffff, 0),
|
||||||
|
SOC_SINGLE("TDM2 Attenuation Step Down Factor", FSL_AUDMIX_ATSTPDN1,
|
||||||
|
0, 0x3ffff, 0),
|
||||||
|
SOC_SINGLE("TDM2 Attenuation Step Target", FSL_AUDMIX_ATSTPTGT1,
|
||||||
|
0, 0x3ffff, 0),
|
||||||
|
};
|
||||||
|
|
||||||
|
static int fsl_audmix_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
|
||||||
|
{
|
||||||
|
struct snd_soc_component *comp = dai->component;
|
||||||
|
u32 mask = 0, ctr = 0;
|
||||||
|
|
||||||
|
/* AUDMIX is working in DSP_A format only */
|
||||||
|
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
|
||||||
|
case SND_SOC_DAIFMT_DSP_A:
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* For playback the AUDMIX is slave, and for record is master */
|
||||||
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
|
||||||
|
case SND_SOC_DAIFMT_CBM_CFM:
|
||||||
|
case SND_SOC_DAIFMT_CBS_CFS:
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
|
||||||
|
case SND_SOC_DAIFMT_IB_NF:
|
||||||
|
/* Output data will be written on positive edge of the clock */
|
||||||
|
ctr |= FSL_AUDMIX_CTR_OUTCKPOL(0);
|
||||||
|
break;
|
||||||
|
case SND_SOC_DAIFMT_NB_NF:
|
||||||
|
/* Output data will be written on negative edge of the clock */
|
||||||
|
ctr |= FSL_AUDMIX_CTR_OUTCKPOL(1);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
mask |= FSL_AUDMIX_CTR_OUTCKPOL_MASK;
|
||||||
|
|
||||||
|
return snd_soc_component_update_bits(comp, FSL_AUDMIX_CTR, mask, ctr);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int fsl_audmix_dai_trigger(struct snd_pcm_substream *substream, int cmd,
|
||||||
|
struct snd_soc_dai *dai)
|
||||||
|
{
|
||||||
|
struct fsl_audmix *priv = snd_soc_dai_get_drvdata(dai);
|
||||||
|
|
||||||
|
/* Capture stream shall not be handled */
|
||||||
|
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
switch (cmd) {
|
||||||
|
case SNDRV_PCM_TRIGGER_START:
|
||||||
|
case SNDRV_PCM_TRIGGER_RESUME:
|
||||||
|
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
|
||||||
|
priv->tdms |= BIT(dai->driver->id);
|
||||||
|
break;
|
||||||
|
case SNDRV_PCM_TRIGGER_STOP:
|
||||||
|
case SNDRV_PCM_TRIGGER_SUSPEND:
|
||||||
|
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
|
||||||
|
priv->tdms &= ~BIT(dai->driver->id);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct snd_soc_dai_ops fsl_audmix_dai_ops = {
|
||||||
|
.set_fmt = fsl_audmix_dai_set_fmt,
|
||||||
|
.trigger = fsl_audmix_dai_trigger,
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct snd_soc_dai_driver fsl_audmix_dai[] = {
|
||||||
|
{
|
||||||
|
.id = 0,
|
||||||
|
.name = "audmix-0",
|
||||||
|
.playback = {
|
||||||
|
.stream_name = "AUDMIX-Playback-0",
|
||||||
|
.channels_min = 8,
|
||||||
|
.channels_max = 8,
|
||||||
|
.rate_min = 8000,
|
||||||
|
.rate_max = 96000,
|
||||||
|
.rates = SNDRV_PCM_RATE_8000_96000,
|
||||||
|
.formats = FSL_AUDMIX_FORMATS,
|
||||||
|
},
|
||||||
|
.capture = {
|
||||||
|
.stream_name = "AUDMIX-Capture-0",
|
||||||
|
.channels_min = 8,
|
||||||
|
.channels_max = 8,
|
||||||
|
.rate_min = 8000,
|
||||||
|
.rate_max = 96000,
|
||||||
|
.rates = SNDRV_PCM_RATE_8000_96000,
|
||||||
|
.formats = FSL_AUDMIX_FORMATS,
|
||||||
|
},
|
||||||
|
.ops = &fsl_audmix_dai_ops,
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.id = 1,
|
||||||
|
.name = "audmix-1",
|
||||||
|
.playback = {
|
||||||
|
.stream_name = "AUDMIX-Playback-1",
|
||||||
|
.channels_min = 8,
|
||||||
|
.channels_max = 8,
|
||||||
|
.rate_min = 8000,
|
||||||
|
.rate_max = 96000,
|
||||||
|
.rates = SNDRV_PCM_RATE_8000_96000,
|
||||||
|
.formats = FSL_AUDMIX_FORMATS,
|
||||||
|
},
|
||||||
|
.capture = {
|
||||||
|
.stream_name = "AUDMIX-Capture-1",
|
||||||
|
.channels_min = 8,
|
||||||
|
.channels_max = 8,
|
||||||
|
.rate_min = 8000,
|
||||||
|
.rate_max = 96000,
|
||||||
|
.rates = SNDRV_PCM_RATE_8000_96000,
|
||||||
|
.formats = FSL_AUDMIX_FORMATS,
|
||||||
|
},
|
||||||
|
.ops = &fsl_audmix_dai_ops,
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct snd_soc_component_driver fsl_audmix_component = {
|
||||||
|
.name = "fsl-audmix-dai",
|
||||||
|
.controls = fsl_audmix_snd_controls,
|
||||||
|
.num_controls = ARRAY_SIZE(fsl_audmix_snd_controls),
|
||||||
|
};
|
||||||
|
|
||||||
|
static bool fsl_audmix_readable_reg(struct device *dev, unsigned int reg)
|
||||||
|
{
|
||||||
|
switch (reg) {
|
||||||
|
case FSL_AUDMIX_CTR:
|
||||||
|
case FSL_AUDMIX_STR:
|
||||||
|
case FSL_AUDMIX_ATCR0:
|
||||||
|
case FSL_AUDMIX_ATIVAL0:
|
||||||
|
case FSL_AUDMIX_ATSTPUP0:
|
||||||
|
case FSL_AUDMIX_ATSTPDN0:
|
||||||
|
case FSL_AUDMIX_ATSTPTGT0:
|
||||||
|
case FSL_AUDMIX_ATTNVAL0:
|
||||||
|
case FSL_AUDMIX_ATSTP0:
|
||||||
|
case FSL_AUDMIX_ATCR1:
|
||||||
|
case FSL_AUDMIX_ATIVAL1:
|
||||||
|
case FSL_AUDMIX_ATSTPUP1:
|
||||||
|
case FSL_AUDMIX_ATSTPDN1:
|
||||||
|
case FSL_AUDMIX_ATSTPTGT1:
|
||||||
|
case FSL_AUDMIX_ATTNVAL1:
|
||||||
|
case FSL_AUDMIX_ATSTP1:
|
||||||
|
return true;
|
||||||
|
default:
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static bool fsl_audmix_writeable_reg(struct device *dev, unsigned int reg)
|
||||||
|
{
|
||||||
|
switch (reg) {
|
||||||
|
case FSL_AUDMIX_CTR:
|
||||||
|
case FSL_AUDMIX_ATCR0:
|
||||||
|
case FSL_AUDMIX_ATIVAL0:
|
||||||
|
case FSL_AUDMIX_ATSTPUP0:
|
||||||
|
case FSL_AUDMIX_ATSTPDN0:
|
||||||
|
case FSL_AUDMIX_ATSTPTGT0:
|
||||||
|
case FSL_AUDMIX_ATCR1:
|
||||||
|
case FSL_AUDMIX_ATIVAL1:
|
||||||
|
case FSL_AUDMIX_ATSTPUP1:
|
||||||
|
case FSL_AUDMIX_ATSTPDN1:
|
||||||
|
case FSL_AUDMIX_ATSTPTGT1:
|
||||||
|
return true;
|
||||||
|
default:
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct reg_default fsl_audmix_reg[] = {
|
||||||
|
{ FSL_AUDMIX_CTR, 0x00060 },
|
||||||
|
{ FSL_AUDMIX_STR, 0x00003 },
|
||||||
|
{ FSL_AUDMIX_ATCR0, 0x00000 },
|
||||||
|
{ FSL_AUDMIX_ATIVAL0, 0x3FFFF },
|
||||||
|
{ FSL_AUDMIX_ATSTPUP0, 0x2AAAA },
|
||||||
|
{ FSL_AUDMIX_ATSTPDN0, 0x30000 },
|
||||||
|
{ FSL_AUDMIX_ATSTPTGT0, 0x00010 },
|
||||||
|
{ FSL_AUDMIX_ATTNVAL0, 0x00000 },
|
||||||
|
{ FSL_AUDMIX_ATSTP0, 0x00000 },
|
||||||
|
{ FSL_AUDMIX_ATCR1, 0x00000 },
|
||||||
|
{ FSL_AUDMIX_ATIVAL1, 0x3FFFF },
|
||||||
|
{ FSL_AUDMIX_ATSTPUP1, 0x2AAAA },
|
||||||
|
{ FSL_AUDMIX_ATSTPDN1, 0x30000 },
|
||||||
|
{ FSL_AUDMIX_ATSTPTGT1, 0x00010 },
|
||||||
|
{ FSL_AUDMIX_ATTNVAL1, 0x00000 },
|
||||||
|
{ FSL_AUDMIX_ATSTP1, 0x00000 },
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct regmap_config fsl_audmix_regmap_config = {
|
||||||
|
.reg_bits = 32,
|
||||||
|
.reg_stride = 4,
|
||||||
|
.val_bits = 32,
|
||||||
|
.max_register = FSL_AUDMIX_ATSTP1,
|
||||||
|
.reg_defaults = fsl_audmix_reg,
|
||||||
|
.num_reg_defaults = ARRAY_SIZE(fsl_audmix_reg),
|
||||||
|
.readable_reg = fsl_audmix_readable_reg,
|
||||||
|
.writeable_reg = fsl_audmix_writeable_reg,
|
||||||
|
.cache_type = REGCACHE_FLAT,
|
||||||
|
};
|
||||||
|
|
||||||
|
static int fsl_audmix_probe(struct platform_device *pdev)
|
||||||
|
{
|
||||||
|
struct fsl_audmix *priv;
|
||||||
|
struct resource *res;
|
||||||
|
void __iomem *regs;
|
||||||
|
int ret;
|
||||||
|
const char *sprop;
|
||||||
|
|
||||||
|
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
|
||||||
|
if (!priv)
|
||||||
|
return -ENOMEM;
|
||||||
|
|
||||||
|
/* Get the addresses */
|
||||||
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||||
|
regs = devm_ioremap_resource(&pdev->dev, res);
|
||||||
|
if (IS_ERR(regs))
|
||||||
|
return PTR_ERR(regs);
|
||||||
|
|
||||||
|
priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev, "ipg", regs,
|
||||||
|
&fsl_audmix_regmap_config);
|
||||||
|
if (IS_ERR(priv->regmap)) {
|
||||||
|
dev_err(&pdev->dev, "failed to init regmap\n");
|
||||||
|
return PTR_ERR(priv->regmap);
|
||||||
|
}
|
||||||
|
|
||||||
|
priv->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
|
||||||
|
if (IS_ERR(priv->ipg_clk)) {
|
||||||
|
dev_err(&pdev->dev, "failed to get ipg clock\n");
|
||||||
|
return PTR_ERR(priv->ipg_clk);
|
||||||
|
}
|
||||||
|
|
||||||
|
platform_set_drvdata(pdev, priv);
|
||||||
|
pm_runtime_enable(&pdev->dev);
|
||||||
|
|
||||||
|
ret = devm_snd_soc_register_component(&pdev->dev, &fsl_audmix_component,
|
||||||
|
fsl_audmix_dai,
|
||||||
|
ARRAY_SIZE(fsl_audmix_dai));
|
||||||
|
if (ret) {
|
||||||
|
dev_err(&pdev->dev, "failed to register ASoC DAI\n");
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
sprop = of_get_property(pdev->dev.of_node, "model", NULL);
|
||||||
|
if (sprop) {
|
||||||
|
priv->pdev = platform_device_register_data(&pdev->dev, sprop, 0,
|
||||||
|
NULL, 0);
|
||||||
|
if (IS_ERR(priv->pdev)) {
|
||||||
|
ret = PTR_ERR(priv->pdev);
|
||||||
|
dev_err(&pdev->dev,
|
||||||
|
"failed to register platform %s: %d\n", sprop,
|
||||||
|
ret);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
dev_err(&pdev->dev, "[model] attribute missing.\n");
|
||||||
|
ret = -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int fsl_audmix_remove(struct platform_device *pdev)
|
||||||
|
{
|
||||||
|
struct fsl_audmix *priv = dev_get_drvdata(&pdev->dev);
|
||||||
|
|
||||||
|
if (priv->pdev)
|
||||||
|
platform_device_unregister(priv->pdev);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#ifdef CONFIG_PM
|
||||||
|
static int fsl_audmix_runtime_resume(struct device *dev)
|
||||||
|
{
|
||||||
|
struct fsl_audmix *priv = dev_get_drvdata(dev);
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
ret = clk_prepare_enable(priv->ipg_clk);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(dev, "Failed to enable IPG clock: %d\n", ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
regcache_cache_only(priv->regmap, false);
|
||||||
|
regcache_mark_dirty(priv->regmap);
|
||||||
|
|
||||||
|
return regcache_sync(priv->regmap);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int fsl_audmix_runtime_suspend(struct device *dev)
|
||||||
|
{
|
||||||
|
struct fsl_audmix *priv = dev_get_drvdata(dev);
|
||||||
|
|
||||||
|
regcache_cache_only(priv->regmap, true);
|
||||||
|
|
||||||
|
clk_disable_unprepare(priv->ipg_clk);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#endif /* CONFIG_PM */
|
||||||
|
|
||||||
|
static const struct dev_pm_ops fsl_audmix_pm = {
|
||||||
|
SET_RUNTIME_PM_OPS(fsl_audmix_runtime_suspend,
|
||||||
|
fsl_audmix_runtime_resume,
|
||||||
|
NULL)
|
||||||
|
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
|
||||||
|
pm_runtime_force_resume)
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct of_device_id fsl_audmix_ids[] = {
|
||||||
|
{ .compatible = "fsl,imx8qm-audmix", },
|
||||||
|
{ /* sentinel */ }
|
||||||
|
};
|
||||||
|
MODULE_DEVICE_TABLE(of, fsl_audmix_ids);
|
||||||
|
|
||||||
|
static struct platform_driver fsl_audmix_driver = {
|
||||||
|
.probe = fsl_audmix_probe,
|
||||||
|
.remove = fsl_audmix_remove,
|
||||||
|
.driver = {
|
||||||
|
.name = "fsl-audmix",
|
||||||
|
.of_match_table = fsl_audmix_ids,
|
||||||
|
.pm = &fsl_audmix_pm,
|
||||||
|
},
|
||||||
|
};
|
||||||
|
module_platform_driver(fsl_audmix_driver);
|
||||||
|
|
||||||
|
MODULE_DESCRIPTION("NXP AUDMIX ASoC DAI driver");
|
||||||
|
MODULE_AUTHOR("Viorel Suman <viorel.suman@nxp.com>");
|
||||||
|
MODULE_ALIAS("platform:fsl-audmix");
|
||||||
|
MODULE_LICENSE("GPL v2");
|
||||||
102
sound/soc/fsl/fsl_audmix.h
Normal file
102
sound/soc/fsl/fsl_audmix.h
Normal file
@ -0,0 +1,102 @@
|
|||||||
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||||||
|
/*
|
||||||
|
* NXP AUDMIX ALSA SoC Digital Audio Interface (DAI) driver
|
||||||
|
*
|
||||||
|
* Copyright 2017 NXP
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef __FSL_AUDMIX_H
|
||||||
|
#define __FSL_AUDMIX_H
|
||||||
|
|
||||||
|
#define FSL_AUDMIX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
|
||||||
|
SNDRV_PCM_FMTBIT_S24_LE |\
|
||||||
|
SNDRV_PCM_FMTBIT_S32_LE)
|
||||||
|
/* AUDMIX Registers */
|
||||||
|
#define FSL_AUDMIX_CTR 0x200 /* Control */
|
||||||
|
#define FSL_AUDMIX_STR 0x204 /* Status */
|
||||||
|
|
||||||
|
#define FSL_AUDMIX_ATCR0 0x208 /* Attenuation Control */
|
||||||
|
#define FSL_AUDMIX_ATIVAL0 0x20c /* Attenuation Initial Value */
|
||||||
|
#define FSL_AUDMIX_ATSTPUP0 0x210 /* Attenuation step up factor */
|
||||||
|
#define FSL_AUDMIX_ATSTPDN0 0x214 /* Attenuation step down factor */
|
||||||
|
#define FSL_AUDMIX_ATSTPTGT0 0x218 /* Attenuation step target */
|
||||||
|
#define FSL_AUDMIX_ATTNVAL0 0x21c /* Attenuation Value */
|
||||||
|
#define FSL_AUDMIX_ATSTP0 0x220 /* Attenuation step number */
|
||||||
|
|
||||||
|
#define FSL_AUDMIX_ATCR1 0x228 /* Attenuation Control */
|
||||||
|
#define FSL_AUDMIX_ATIVAL1 0x22c /* Attenuation Initial Value */
|
||||||
|
#define FSL_AUDMIX_ATSTPUP1 0x230 /* Attenuation step up factor */
|
||||||
|
#define FSL_AUDMIX_ATSTPDN1 0x234 /* Attenuation step down factor */
|
||||||
|
#define FSL_AUDMIX_ATSTPTGT1 0x238 /* Attenuation step target */
|
||||||
|
#define FSL_AUDMIX_ATTNVAL1 0x23c /* Attenuation Value */
|
||||||
|
#define FSL_AUDMIX_ATSTP1 0x240 /* Attenuation step number */
|
||||||
|
|
||||||
|
/* AUDMIX Control Register */
|
||||||
|
#define FSL_AUDMIX_CTR_MIXCLK_SHIFT 0
|
||||||
|
#define FSL_AUDMIX_CTR_MIXCLK_MASK BIT(FSL_AUDMIX_CTR_MIXCLK_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_MIXCLK(i) ((i) << FSL_AUDMIX_CTR_MIXCLK_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_OUTSRC_SHIFT 1
|
||||||
|
#define FSL_AUDMIX_CTR_OUTSRC_MASK (0x3 << FSL_AUDMIX_CTR_OUTSRC_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_OUTSRC(i) (((i) << FSL_AUDMIX_CTR_OUTSRC_SHIFT)\
|
||||||
|
& FSL_AUDMIX_CTR_OUTSRC_MASK)
|
||||||
|
#define FSL_AUDMIX_CTR_OUTWIDTH_SHIFT 3
|
||||||
|
#define FSL_AUDMIX_CTR_OUTWIDTH_MASK (0x7 << FSL_AUDMIX_CTR_OUTWIDTH_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_OUTWIDTH(i) (((i) << FSL_AUDMIX_CTR_OUTWIDTH_SHIFT)\
|
||||||
|
& FSL_AUDMIX_CTR_OUTWIDTH_MASK)
|
||||||
|
#define FSL_AUDMIX_CTR_OUTCKPOL_SHIFT 6
|
||||||
|
#define FSL_AUDMIX_CTR_OUTCKPOL_MASK BIT(FSL_AUDMIX_CTR_OUTCKPOL_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_OUTCKPOL(i) ((i) << FSL_AUDMIX_CTR_OUTCKPOL_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_MASKRTDF_SHIFT 7
|
||||||
|
#define FSL_AUDMIX_CTR_MASKRTDF_MASK BIT(FSL_AUDMIX_CTR_MASKRTDF_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_MASKRTDF(i) ((i) << FSL_AUDMIX_CTR_MASKRTDF_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_MASKCKDF_SHIFT 8
|
||||||
|
#define FSL_AUDMIX_CTR_MASKCKDF_MASK BIT(FSL_AUDMIX_CTR_MASKCKDF_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_MASKCKDF(i) ((i) << FSL_AUDMIX_CTR_MASKCKDF_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_SYNCMODE_SHIFT 9
|
||||||
|
#define FSL_AUDMIX_CTR_SYNCMODE_MASK BIT(FSL_AUDMIX_CTR_SYNCMODE_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_SYNCMODE(i) ((i) << FSL_AUDMIX_CTR_SYNCMODE_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_SYNCSRC_SHIFT 10
|
||||||
|
#define FSL_AUDMIX_CTR_SYNCSRC_MASK BIT(FSL_AUDMIX_CTR_SYNCSRC_SHIFT)
|
||||||
|
#define FSL_AUDMIX_CTR_SYNCSRC(i) ((i) << FSL_AUDMIX_CTR_SYNCSRC_SHIFT)
|
||||||
|
|
||||||
|
/* AUDMIX Status Register */
|
||||||
|
#define FSL_AUDMIX_STR_RATEDIFF BIT(0)
|
||||||
|
#define FSL_AUDMIX_STR_CLKDIFF BIT(1)
|
||||||
|
#define FSL_AUDMIX_STR_MIXSTAT_SHIFT 2
|
||||||
|
#define FSL_AUDMIX_STR_MIXSTAT_MASK (0x3 << FSL_AUDMIX_STR_MIXSTAT_SHIFT)
|
||||||
|
#define FSL_AUDMIX_STR_MIXSTAT(i) (((i) & FSL_AUDMIX_STR_MIXSTAT_MASK) \
|
||||||
|
>> FSL_AUDMIX_STR_MIXSTAT_SHIFT)
|
||||||
|
/* AUDMIX Attenuation Control Register */
|
||||||
|
#define FSL_AUDMIX_ATCR_AT_EN BIT(0)
|
||||||
|
#define FSL_AUDMIX_ATCR_AT_UPDN BIT(1)
|
||||||
|
#define FSL_AUDMIX_ATCR_ATSTPDIF_SHIFT 2
|
||||||
|
#define FSL_AUDMIX_ATCR_ATSTPDFI_MASK \
|
||||||
|
(0xfff << FSL_AUDMIX_ATCR_ATSTPDIF_SHIFT)
|
||||||
|
|
||||||
|
/* AUDMIX Attenuation Initial Value Register */
|
||||||
|
#define FSL_AUDMIX_ATIVAL_ATINVAL_MASK 0x3FFFF
|
||||||
|
|
||||||
|
/* AUDMIX Attenuation Step Up Factor Register */
|
||||||
|
#define FSL_AUDMIX_ATSTPUP_ATSTEPUP_MASK 0x3FFFF
|
||||||
|
|
||||||
|
/* AUDMIX Attenuation Step Down Factor Register */
|
||||||
|
#define FSL_AUDMIX_ATSTPDN_ATSTEPDN_MASK 0x3FFFF
|
||||||
|
|
||||||
|
/* AUDMIX Attenuation Step Target Register */
|
||||||
|
#define FSL_AUDMIX_ATSTPTGT_ATSTPTG_MASK 0x3FFFF
|
||||||
|
|
||||||
|
/* AUDMIX Attenuation Value Register */
|
||||||
|
#define FSL_AUDMIX_ATTNVAL_ATCURVAL_MASK 0x3FFFF
|
||||||
|
|
||||||
|
/* AUDMIX Attenuation Step Number Register */
|
||||||
|
#define FSL_AUDMIX_ATSTP_STPCTR_MASK 0x3FFFF
|
||||||
|
|
||||||
|
#define FSL_AUDMIX_MAX_DAIS 2
|
||||||
|
struct fsl_audmix {
|
||||||
|
struct platform_device *pdev;
|
||||||
|
struct regmap *regmap;
|
||||||
|
struct clk *ipg_clk;
|
||||||
|
u8 tdms;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif /* __FSL_AUDMIX_H */
|
||||||
Loading…
Reference in New Issue
Block a user