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Diffstat (limited to 'sound/soc/tegra/tegra210_i2s.c')
-rw-r--r--sound/soc/tegra/tegra210_i2s.c648
1 files changed, 504 insertions, 144 deletions
diff --git a/sound/soc/tegra/tegra210_i2s.c b/sound/soc/tegra/tegra210_i2s.c
index a383bd5c51cd..100277c39001 100644
--- a/sound/soc/tegra/tegra210_i2s.c
+++ b/sound/soc/tegra/tegra210_i2s.c
@@ -1,18 +1,20 @@
// SPDX-License-Identifier: GPL-2.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2020-2025 NVIDIA CORPORATION & AFFILIATES.
+// All rights reserved.
//
// tegra210_i2s.c - Tegra210 I2S driver
-//
-// Copyright (c) 2020 NVIDIA CORPORATION. All rights reserved.
#include <linux/clk.h>
#include <linux/device.h>
+#include <linux/mod_devicetable.h>
#include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of_graph.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm_params.h>
+#include <sound/simple_card_utils.h>
#include <sound/soc.h>
#include "tegra210_i2s.h"
#include "tegra_cif.h"
@@ -34,14 +36,28 @@ static const struct reg_default tegra210_i2s_reg_defaults[] = {
{ TEGRA210_I2S_CYA, 0x1 },
};
-static void tegra210_i2s_set_slot_ctrl(struct regmap *regmap,
+static const struct reg_default tegra264_i2s_reg_defaults[] = {
+ { TEGRA210_I2S_RX_INT_MASK, 0x00000003 },
+ { TEGRA210_I2S_RX_CIF_CTRL, 0x00003f00 },
+ { TEGRA264_I2S_TX_INT_MASK, 0x00000003 },
+ { TEGRA264_I2S_TX_CIF_CTRL, 0x00003f00 },
+ { TEGRA264_I2S_CG, 0x1 },
+ { TEGRA264_I2S_TIMING, 0x0000001f },
+ { TEGRA264_I2S_ENABLE, 0x1 },
+ { TEGRA264_I2S_RX_FIFO_WR_ACCESS_MODE, 0x1 },
+ { TEGRA264_I2S_TX_FIFO_RD_ACCESS_MODE, 0x1 },
+};
+
+static void tegra210_i2s_set_slot_ctrl(struct tegra210_i2s *i2s,
unsigned int total_slots,
unsigned int tx_slot_mask,
unsigned int rx_slot_mask)
{
- regmap_write(regmap, TEGRA210_I2S_SLOT_CTRL, total_slots - 1);
- regmap_write(regmap, TEGRA210_I2S_TX_SLOT_CTRL, tx_slot_mask);
- regmap_write(regmap, TEGRA210_I2S_RX_SLOT_CTRL, rx_slot_mask);
+ regmap_write(i2s->regmap, TEGRA210_I2S_SLOT_CTRL + i2s->soc_data->i2s_ctrl_offset,
+ total_slots - 1);
+ regmap_write(i2s->regmap, TEGRA210_I2S_TX_SLOT_CTRL + i2s->soc_data->tx_offset,
+ tx_slot_mask);
+ regmap_write(i2s->regmap, TEGRA210_I2S_RX_SLOT_CTRL, rx_slot_mask);
}
static int tegra210_i2s_set_clock_rate(struct device *dev,
@@ -51,7 +67,7 @@ static int tegra210_i2s_set_clock_rate(struct device *dev,
unsigned int val;
int err;
- regmap_read(i2s->regmap, TEGRA210_I2S_CTRL, &val);
+ regmap_read(i2s->regmap, TEGRA210_I2S_CTRL + i2s->soc_data->i2s_ctrl_offset, &val);
/* No need to set rates if I2S is being operated in slave */
if (!(val & I2S_CTRL_MASTER_EN))
@@ -83,7 +99,7 @@ static int tegra210_i2s_set_clock_rate(struct device *dev,
}
static int tegra210_i2s_sw_reset(struct snd_soc_component *compnt,
- bool is_playback)
+ int stream)
{
struct device *dev = compnt->dev;
struct tegra210_i2s *i2s = dev_get_drvdata(dev);
@@ -93,20 +109,20 @@ static int tegra210_i2s_sw_reset(struct snd_soc_component *compnt,
unsigned int cif_ctrl, stream_ctrl, i2s_ctrl, val;
int err;
- if (is_playback) {
+ if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
reset_reg = TEGRA210_I2S_RX_SOFT_RESET;
cif_reg = TEGRA210_I2S_RX_CIF_CTRL;
stream_reg = TEGRA210_I2S_RX_CTRL;
} else {
- reset_reg = TEGRA210_I2S_TX_SOFT_RESET;
- cif_reg = TEGRA210_I2S_TX_CIF_CTRL;
- stream_reg = TEGRA210_I2S_TX_CTRL;
+ reset_reg = TEGRA210_I2S_TX_SOFT_RESET + i2s->soc_data->tx_offset;
+ cif_reg = TEGRA210_I2S_TX_CIF_CTRL + i2s->soc_data->tx_offset;
+ stream_reg = TEGRA210_I2S_TX_CTRL + i2s->soc_data->tx_offset;
}
/* Store CIF and I2S control values */
regmap_read(i2s->regmap, cif_reg, &cif_ctrl);
regmap_read(i2s->regmap, stream_reg, &stream_ctrl);
- regmap_read(i2s->regmap, TEGRA210_I2S_CTRL, &i2s_ctrl);
+ regmap_read(i2s->regmap, TEGRA210_I2S_CTRL + i2s->soc_data->i2s_ctrl_offset, &i2s_ctrl);
/* Reset to make sure the previous transactions are clean */
regmap_update_bits(i2s->regmap, reset_reg, reset_mask, reset_en);
@@ -116,14 +132,14 @@ static int tegra210_i2s_sw_reset(struct snd_soc_component *compnt,
10, 10000);
if (err) {
dev_err(dev, "timeout: failed to reset I2S for %s\n",
- is_playback ? "playback" : "capture");
+ snd_pcm_direction_name(stream));
return err;
}
/* Restore CIF and I2S control values */
regmap_write(i2s->regmap, cif_reg, cif_ctrl);
regmap_write(i2s->regmap, stream_reg, stream_ctrl);
- regmap_write(i2s->regmap, TEGRA210_I2S_CTRL, i2s_ctrl);
+ regmap_write(i2s->regmap, TEGRA210_I2S_CTRL + i2s->soc_data->i2s_ctrl_offset, i2s_ctrl);
return 0;
}
@@ -135,19 +151,16 @@ static int tegra210_i2s_init(struct snd_soc_dapm_widget *w,
struct device *dev = compnt->dev;
struct tegra210_i2s *i2s = dev_get_drvdata(dev);
unsigned int val, status_reg;
- bool is_playback;
+ int stream;
int err;
- switch (w->reg) {
- case TEGRA210_I2S_RX_ENABLE:
- is_playback = true;
+ if (w->reg == TEGRA210_I2S_RX_ENABLE) {
+ stream = SNDRV_PCM_STREAM_PLAYBACK;
status_reg = TEGRA210_I2S_RX_STATUS;
- break;
- case TEGRA210_I2S_TX_ENABLE:
- is_playback = false;
- status_reg = TEGRA210_I2S_TX_STATUS;
- break;
- default:
+ } else if (w->reg == (TEGRA210_I2S_TX_ENABLE + i2s->soc_data->tx_offset)) {
+ stream = SNDRV_PCM_STREAM_CAPTURE;
+ status_reg = TEGRA210_I2S_TX_STATUS + i2s->soc_data->tx_offset;
+ } else {
return -EINVAL;
}
@@ -157,14 +170,14 @@ static int tegra210_i2s_init(struct snd_soc_dapm_widget *w,
10, 10000);
if (err) {
dev_err(dev, "timeout: previous I2S %s is still active\n",
- is_playback ? "playback" : "capture");
+ snd_pcm_direction_name(stream));
return err;
}
- return tegra210_i2s_sw_reset(compnt, is_playback);
+ return tegra210_i2s_sw_reset(compnt, stream);
}
-static int __maybe_unused tegra210_i2s_runtime_suspend(struct device *dev)
+static int tegra210_i2s_runtime_suspend(struct device *dev)
{
struct tegra210_i2s *i2s = dev_get_drvdata(dev);
@@ -176,7 +189,7 @@ static int __maybe_unused tegra210_i2s_runtime_suspend(struct device *dev)
return 0;
}
-static int __maybe_unused tegra210_i2s_runtime_resume(struct device *dev)
+static int tegra210_i2s_runtime_resume(struct device *dev)
{
struct tegra210_i2s *i2s = dev_get_drvdata(dev);
int err;
@@ -197,7 +210,7 @@ static void tegra210_i2s_set_data_offset(struct tegra210_i2s *i2s,
unsigned int data_offset)
{
/* Capture path */
- regmap_update_bits(i2s->regmap, TEGRA210_I2S_TX_CTRL,
+ regmap_update_bits(i2s->regmap, TEGRA210_I2S_TX_CTRL + i2s->soc_data->tx_offset,
I2S_CTRL_DATA_OFFSET_MASK,
data_offset << I2S_DATA_SHIFT);
@@ -214,11 +227,11 @@ static int tegra210_i2s_set_fmt(struct snd_soc_dai *dai,
unsigned int mask, val;
mask = I2S_CTRL_MASTER_EN_MASK;
- switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBS_CFS:
+ switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+ case SND_SOC_DAIFMT_BC_FC:
val = 0;
break;
- case SND_SOC_DAIFMT_CBM_CFM:
+ case SND_SOC_DAIFMT_BP_FP:
val = I2S_CTRL_MASTER_EN;
break;
default:
@@ -280,7 +293,8 @@ static int tegra210_i2s_set_fmt(struct snd_soc_dai *dai,
return -EINVAL;
}
- regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL, mask, val);
+ regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL + i2s->soc_data->i2s_ctrl_offset,
+ mask, val);
i2s->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
@@ -294,93 +308,243 @@ static int tegra210_i2s_set_tdm_slot(struct snd_soc_dai *dai,
struct tegra210_i2s *i2s = snd_soc_dai_get_drvdata(dai);
/* Copy the required tx and rx mask */
- i2s->tx_mask = (tx_mask > DEFAULT_I2S_SLOT_MASK) ?
- DEFAULT_I2S_SLOT_MASK : tx_mask;
- i2s->rx_mask = (rx_mask > DEFAULT_I2S_SLOT_MASK) ?
- DEFAULT_I2S_SLOT_MASK : rx_mask;
+ i2s->tx_mask = (tx_mask > i2s->soc_data->slot_mask) ?
+ i2s->soc_data->slot_mask : tx_mask;
+ i2s->rx_mask = (rx_mask > i2s->soc_data->slot_mask) ?
+ i2s->soc_data->slot_mask : rx_mask;
return 0;
}
-static int tegra210_i2s_set_dai_bclk_ratio(struct snd_soc_dai *dai,
- unsigned int ratio)
+static int tegra210_i2s_get_loopback(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
{
- struct tegra210_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
- i2s->bclk_ratio = ratio;
+ ucontrol->value.integer.value[0] = i2s->loopback;
return 0;
}
-static int tegra210_i2s_get_control(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
+static int tegra210_i2s_put_loopback(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+ int value = ucontrol->value.integer.value[0];
+
+ if (value == i2s->loopback)
+ return 0;
+
+ i2s->loopback = value;
+
+ regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL + i2s->soc_data->i2s_ctrl_offset,
+ I2S_CTRL_LPBK_MASK, i2s->loopback << I2S_CTRL_LPBK_SHIFT);
+
+ return 1;
+}
+
+static int tegra210_i2s_get_fsync_width(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
- long *uctl_val = &ucontrol->value.integer.value[0];
-
- if (strstr(kcontrol->id.name, "Loopback"))
- *uctl_val = i2s->loopback;
- else if (strstr(kcontrol->id.name, "FSYNC Width"))
- *uctl_val = i2s->fsync_width;
- else if (strstr(kcontrol->id.name, "Capture Stereo To Mono"))
- *uctl_val = i2s->stereo_to_mono[I2S_TX_PATH];
- else if (strstr(kcontrol->id.name, "Capture Mono To Stereo"))
- *uctl_val = i2s->mono_to_stereo[I2S_TX_PATH];
- else if (strstr(kcontrol->id.name, "Playback Stereo To Mono"))
- *uctl_val = i2s->stereo_to_mono[I2S_RX_PATH];
- else if (strstr(kcontrol->id.name, "Playback Mono To Stereo"))
- *uctl_val = i2s->mono_to_stereo[I2S_RX_PATH];
- else if (strstr(kcontrol->id.name, "Playback FIFO Threshold"))
- *uctl_val = i2s->rx_fifo_th;
- else if (strstr(kcontrol->id.name, "BCLK Ratio"))
- *uctl_val = i2s->bclk_ratio;
+
+ ucontrol->value.integer.value[0] = i2s->fsync_width;
return 0;
}
-static int tegra210_i2s_put_control(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
+static int tegra210_i2s_put_fsync_width(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
int value = ucontrol->value.integer.value[0];
- if (strstr(kcontrol->id.name, "Loopback")) {
- i2s->loopback = value;
+ if (value == i2s->fsync_width)
+ return 0;
- regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL,
- I2S_CTRL_LPBK_MASK,
- i2s->loopback << I2S_CTRL_LPBK_SHIFT);
+ i2s->fsync_width = value;
- } else if (strstr(kcontrol->id.name, "FSYNC Width")) {
- /*
- * Frame sync width is used only for FSYNC modes and not
- * applicable for LRCK modes. Reset value for this field is "0",
- * which means the width is one bit clock wide.
- * The width requirement may depend on the codec and in such
- * cases mixer control is used to update custom values. A value
- * of "N" here means, width is "N + 1" bit clock wide.
- */
- i2s->fsync_width = value;
-
- regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL,
- I2S_CTRL_FSYNC_WIDTH_MASK,
- i2s->fsync_width << I2S_FSYNC_WIDTH_SHIFT);
-
- } else if (strstr(kcontrol->id.name, "Capture Stereo To Mono")) {
- i2s->stereo_to_mono[I2S_TX_PATH] = value;
- } else if (strstr(kcontrol->id.name, "Capture Mono To Stereo")) {
- i2s->mono_to_stereo[I2S_TX_PATH] = value;
- } else if (strstr(kcontrol->id.name, "Playback Stereo To Mono")) {
- i2s->stereo_to_mono[I2S_RX_PATH] = value;
- } else if (strstr(kcontrol->id.name, "Playback Mono To Stereo")) {
- i2s->mono_to_stereo[I2S_RX_PATH] = value;
- } else if (strstr(kcontrol->id.name, "Playback FIFO Threshold")) {
- i2s->rx_fifo_th = value;
- } else if (strstr(kcontrol->id.name, "BCLK Ratio")) {
- i2s->bclk_ratio = value;
- }
+ /*
+ * Frame sync width is used only for FSYNC modes and not
+ * applicable for LRCK modes. Reset value for this field is "0",
+ * which means the width is one bit clock wide.
+ * The width requirement may depend on the codec and in such
+ * cases mixer control is used to update custom values. A value
+ * of "N" here means, width is "N + 1" bit clock wide.
+ */
+ regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL + i2s->soc_data->i2s_ctrl_offset,
+ i2s->soc_data->fsync_width_mask,
+ i2s->fsync_width << i2s->soc_data->fsync_width_shift);
+
+ return 1;
+}
+
+static int tegra210_i2s_cget_stereo_to_mono(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+ ucontrol->value.enumerated.item[0] = i2s->stereo_to_mono[I2S_TX_PATH];
+
+ return 0;
+}
+
+static int tegra210_i2s_cput_stereo_to_mono(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+ unsigned int value = ucontrol->value.enumerated.item[0];
+
+ if (value == i2s->stereo_to_mono[I2S_TX_PATH])
+ return 0;
+
+ i2s->stereo_to_mono[I2S_TX_PATH] = value;
+
+ return 1;
+}
+
+static int tegra210_i2s_cget_mono_to_stereo(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+ ucontrol->value.enumerated.item[0] = i2s->mono_to_stereo[I2S_TX_PATH];
+
+ return 0;
+}
+
+static int tegra210_i2s_cput_mono_to_stereo(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+ unsigned int value = ucontrol->value.enumerated.item[0];
+
+ if (value == i2s->mono_to_stereo[I2S_TX_PATH])
+ return 0;
+
+ i2s->mono_to_stereo[I2S_TX_PATH] = value;
+
+ return 1;
+}
+
+static int tegra210_i2s_pget_stereo_to_mono(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+ ucontrol->value.enumerated.item[0] = i2s->stereo_to_mono[I2S_RX_PATH];
+
+ return 0;
+}
+
+static int tegra210_i2s_pput_stereo_to_mono(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+ unsigned int value = ucontrol->value.enumerated.item[0];
+
+ if (value == i2s->stereo_to_mono[I2S_RX_PATH])
+ return 0;
+
+ i2s->stereo_to_mono[I2S_RX_PATH] = value;
+
+ return 1;
+}
+
+static int tegra210_i2s_pget_mono_to_stereo(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+ ucontrol->value.enumerated.item[0] = i2s->mono_to_stereo[I2S_RX_PATH];
+
+ return 0;
+}
+
+static int tegra210_i2s_pput_mono_to_stereo(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+ unsigned int value = ucontrol->value.enumerated.item[0];
+
+ if (value == i2s->mono_to_stereo[I2S_RX_PATH])
+ return 0;
+
+ i2s->mono_to_stereo[I2S_RX_PATH] = value;
+
+ return 1;
+}
+
+static int tegra210_i2s_pget_fifo_th(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+ ucontrol->value.integer.value[0] = i2s->rx_fifo_th;
+
+ return 0;
+}
+
+static int tegra210_i2s_pput_fifo_th(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+ int value = ucontrol->value.integer.value[0];
+
+ if (value == i2s->rx_fifo_th)
+ return 0;
+
+ i2s->rx_fifo_th = value;
+
+ return 1;
+}
+
+static int tegra210_i2s_get_bclk_ratio(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+
+ ucontrol->value.integer.value[0] = i2s->bclk_ratio;
+
+ return 0;
+}
+
+static int tegra210_i2s_put_bclk_ratio(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *compnt = snd_soc_kcontrol_component(kcontrol);
+ struct tegra210_i2s *i2s = snd_soc_component_get_drvdata(compnt);
+ int value = ucontrol->value.integer.value[0];
+
+ if (value == i2s->bclk_ratio)
+ return 0;
+
+ i2s->bclk_ratio = value;
+
+ return 1;
+}
+
+static int tegra210_i2s_set_dai_bclk_ratio(struct snd_soc_dai *dai,
+ unsigned int ratio)
+{
+ struct tegra210_i2s *i2s = snd_soc_dai_get_drvdata(dai);
+
+ i2s->bclk_ratio = ratio;
return 0;
}
@@ -410,7 +574,7 @@ static int tegra210_i2s_set_timing_params(struct device *dev,
return err;
}
- regmap_read(i2s->regmap, TEGRA210_I2S_CTRL, &val);
+ regmap_read(i2s->regmap, TEGRA210_I2S_CTRL + i2s->soc_data->i2s_ctrl_offset, &val);
/*
* For LRCK mode, channel bit count depends on number of bit clocks
@@ -426,7 +590,7 @@ static int tegra210_i2s_set_timing_params(struct device *dev,
case I2S_CTRL_FRAME_FMT_FSYNC_MODE:
bit_count = (bclk_rate / srate) - 1;
- tegra210_i2s_set_slot_ctrl(i2s->regmap, channels,
+ tegra210_i2s_set_slot_ctrl(i2s, channels,
i2s->tx_mask, i2s->rx_mask);
break;
default:
@@ -439,7 +603,7 @@ static int tegra210_i2s_set_timing_params(struct device *dev,
return -EINVAL;
}
- regmap_write(i2s->regmap, TEGRA210_I2S_TIMING,
+ regmap_write(i2s->regmap, TEGRA210_I2S_TIMING + i2s->soc_data->i2s_ctrl_offset,
bit_count << I2S_TIMING_CH_BIT_CNT_SHIFT);
return 0;
@@ -453,6 +617,7 @@ static int tegra210_i2s_hw_params(struct snd_pcm_substream *substream,
struct tegra210_i2s *i2s = snd_soc_dai_get_drvdata(dai);
unsigned int sample_size, channels, srate, val, reg, path;
struct tegra_cif_conf cif_conf;
+ snd_pcm_format_t sample_format;
memset(&cif_conf, 0, sizeof(struct tegra_cif_conf));
@@ -465,33 +630,62 @@ static int tegra210_i2s_hw_params(struct snd_pcm_substream *substream,
cif_conf.audio_ch = channels;
cif_conf.client_ch = channels;
+ if (i2s->client_channels)
+ cif_conf.client_ch = i2s->client_channels;
+ /* AHUB CIF Audio bits configs */
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S8:
+ cif_conf.audio_bits = TEGRA_ACIF_BITS_8;
+ break;
+ case SNDRV_PCM_FORMAT_S16_LE:
+ cif_conf.audio_bits = TEGRA_ACIF_BITS_16;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ case SNDRV_PCM_FORMAT_S32_LE:
+ cif_conf.audio_bits = TEGRA_ACIF_BITS_32;
+ break;
+ default:
+ dev_err(dev, "unsupported params audio bit format!\n");
+ return -EOPNOTSUPP;
+ }
+
+ sample_format = params_format(params);
+ if (i2s->client_sample_format >= 0)
+ sample_format = (snd_pcm_format_t)i2s->client_sample_format;
+
+ /*
+ * Format of the I2S for sending/receiving the audio
+ * to/from external device.
+ */
+ switch (sample_format) {
+ case SNDRV_PCM_FORMAT_S8:
val = I2S_BITS_8;
sample_size = 8;
- cif_conf.audio_bits = TEGRA_ACIF_BITS_8;
cif_conf.client_bits = TEGRA_ACIF_BITS_8;
break;
case SNDRV_PCM_FORMAT_S16_LE:
val = I2S_BITS_16;
sample_size = 16;
- cif_conf.audio_bits = TEGRA_ACIF_BITS_16;
cif_conf.client_bits = TEGRA_ACIF_BITS_16;
break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ val = I2S_BITS_24;
+ sample_size = 32;
+ cif_conf.client_bits = TEGRA_ACIF_BITS_24;
+ break;
case SNDRV_PCM_FORMAT_S32_LE:
val = I2S_BITS_32;
sample_size = 32;
- cif_conf.audio_bits = TEGRA_ACIF_BITS_32;
cif_conf.client_bits = TEGRA_ACIF_BITS_32;
break;
default:
- dev_err(dev, "unsupported format!\n");
+ dev_err(dev, "unsupported client bit format!\n");
return -EOPNOTSUPP;
}
/* Program sample size */
- regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL,
+ regmap_update_bits(i2s->regmap, TEGRA210_I2S_CTRL + i2s->soc_data->i2s_ctrl_offset,
I2S_CTRL_BIT_SIZE_MASK, val);
srate = params_rate(params);
@@ -515,13 +709,16 @@ static int tegra210_i2s_hw_params(struct snd_pcm_substream *substream,
reg = TEGRA210_I2S_RX_CIF_CTRL;
} else {
- reg = TEGRA210_I2S_TX_CIF_CTRL;
+ reg = TEGRA210_I2S_TX_CIF_CTRL + i2s->soc_data->tx_offset;
}
cif_conf.mono_conv = i2s->mono_to_stereo[path];
cif_conf.stereo_conv = i2s->stereo_to_mono[path];
- tegra_set_cif(i2s->regmap, reg, &cif_conf);
+ if (i2s->soc_data->max_ch == TEGRA264_I2S_MAX_CHANNEL)
+ tegra264_set_cif(i2s->regmap, reg, &cif_conf);
+ else
+ tegra_set_cif(i2s->regmap, reg, &cif_conf);
return tegra210_i2s_set_timing_params(dev, sample_size, srate,
cif_conf.client_ch);
@@ -544,6 +741,7 @@ static struct snd_soc_dai_driver tegra210_i2s_dais[] = {
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
},
.capture = {
@@ -553,6 +751,7 @@ static struct snd_soc_dai_driver tegra210_i2s_dais[] = {
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
},
},
@@ -565,6 +764,7 @@ static struct snd_soc_dai_driver tegra210_i2s_dais[] = {
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
},
.capture = {
@@ -574,10 +774,11 @@ static struct snd_soc_dai_driver tegra210_i2s_dais[] = {
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S8 |
SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE,
},
.ops = &tegra210_i2s_dai_ops,
- .symmetric_rates = 1,
+ .symmetric_rate = 1,
},
};
@@ -598,31 +799,44 @@ static const struct soc_enum tegra210_i2s_stereo_conv_enum =
tegra210_i2s_stereo_conv_text);
static const struct snd_kcontrol_new tegra210_i2s_controls[] = {
- SOC_SINGLE_EXT("Loopback", 0, 0, 1, 0, tegra210_i2s_get_control,
- tegra210_i2s_put_control),
- SOC_SINGLE_EXT("FSYNC Width", 0, 0, 255, 0, tegra210_i2s_get_control,
- tegra210_i2s_put_control),
+ SOC_SINGLE_EXT("Loopback", 0, 0, 1, 0, tegra210_i2s_get_loopback,
+ tegra210_i2s_put_loopback),
+ SOC_SINGLE_EXT("FSYNC Width", 0, 0, 255, 0,
+ tegra210_i2s_get_fsync_width,
+ tegra210_i2s_put_fsync_width),
SOC_ENUM_EXT("Capture Stereo To Mono", tegra210_i2s_stereo_conv_enum,
- tegra210_i2s_get_control, tegra210_i2s_put_control),
+ tegra210_i2s_cget_stereo_to_mono,
+ tegra210_i2s_cput_stereo_to_mono),
SOC_ENUM_EXT("Capture Mono To Stereo", tegra210_i2s_mono_conv_enum,
- tegra210_i2s_get_control, tegra210_i2s_put_control),
+ tegra210_i2s_cget_mono_to_stereo,
+ tegra210_i2s_cput_mono_to_stereo),
SOC_ENUM_EXT("Playback Stereo To Mono", tegra210_i2s_stereo_conv_enum,
- tegra210_i2s_get_control, tegra210_i2s_put_control),
+ tegra210_i2s_pget_mono_to_stereo,
+ tegra210_i2s_pput_mono_to_stereo),
SOC_ENUM_EXT("Playback Mono To Stereo", tegra210_i2s_mono_conv_enum,
- tegra210_i2s_get_control, tegra210_i2s_put_control),
+ tegra210_i2s_pget_stereo_to_mono,
+ tegra210_i2s_pput_stereo_to_mono),
SOC_SINGLE_EXT("Playback FIFO Threshold", 0, 0, I2S_RX_FIFO_DEPTH - 1,
- 0, tegra210_i2s_get_control, tegra210_i2s_put_control),
- SOC_SINGLE_EXT("BCLK Ratio", 0, 0, INT_MAX, 0, tegra210_i2s_get_control,
- tegra210_i2s_put_control),
+ 0, tegra210_i2s_pget_fifo_th, tegra210_i2s_pput_fifo_th),
+ SOC_SINGLE_EXT("BCLK Ratio", 0, 0, INT_MAX, 0,
+ tegra210_i2s_get_bclk_ratio,
+ tegra210_i2s_put_bclk_ratio),
};
-static const struct snd_soc_dapm_widget tegra210_i2s_widgets[] = {
- SND_SOC_DAPM_AIF_IN_E("RX", NULL, 0, TEGRA210_I2S_RX_ENABLE,
- 0, 0, tegra210_i2s_init, SND_SOC_DAPM_PRE_PMU),
- SND_SOC_DAPM_AIF_OUT_E("TX", NULL, 0, TEGRA210_I2S_TX_ENABLE,
- 0, 0, tegra210_i2s_init, SND_SOC_DAPM_PRE_PMU),
- SND_SOC_DAPM_MIC("MIC", NULL),
+#define TEGRA_I2S_WIDGETS(tx_enable_reg) \
+ SND_SOC_DAPM_AIF_IN_E("RX", NULL, 0, TEGRA210_I2S_RX_ENABLE, \
+ 0, 0, tegra210_i2s_init, SND_SOC_DAPM_PRE_PMU), \
+ SND_SOC_DAPM_AIF_OUT_E("TX", NULL, 0, tx_enable_reg, \
+ 0, 0, tegra210_i2s_init, SND_SOC_DAPM_PRE_PMU), \
+ SND_SOC_DAPM_MIC("MIC", NULL), \
SND_SOC_DAPM_SPK("SPK", NULL),
+
+static const struct snd_soc_dapm_widget tegra210_i2s_widgets[] = {
+ TEGRA_I2S_WIDGETS(TEGRA210_I2S_TX_ENABLE)
+};
+
+static const struct snd_soc_dapm_widget tegra264_i2s_widgets[] = {
+ TEGRA_I2S_WIDGETS(TEGRA264_I2S_TX_ENABLE)
};
static const struct snd_soc_dapm_route tegra210_i2s_routes[] = {
@@ -647,7 +861,15 @@ static const struct snd_soc_component_driver tegra210_i2s_cmpnt = {
.num_dapm_routes = ARRAY_SIZE(tegra210_i2s_routes),
.controls = tegra210_i2s_controls,
.num_controls = ARRAY_SIZE(tegra210_i2s_controls),
- .non_legacy_dai_naming = 1,
+};
+
+static const struct snd_soc_component_driver tegra264_i2s_cmpnt = {
+ .dapm_widgets = tegra264_i2s_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tegra264_i2s_widgets),
+ .dapm_routes = tegra210_i2s_routes,
+ .num_dapm_routes = ARRAY_SIZE(tegra210_i2s_routes),
+ .controls = tegra210_i2s_controls,
+ .num_controls = ARRAY_SIZE(tegra210_i2s_controls),
};
static bool tegra210_i2s_wr_reg(struct device *dev, unsigned int reg)
@@ -662,7 +884,7 @@ static bool tegra210_i2s_wr_reg(struct device *dev, unsigned int reg)
return true;
default:
return false;
- };
+ }
}
static bool tegra210_i2s_rd_reg(struct device *dev, unsigned int reg)
@@ -682,7 +904,7 @@ static bool tegra210_i2s_rd_reg(struct device *dev, unsigned int reg)
return true;
default:
return false;
- };
+ }
}
static bool tegra210_i2s_volatile_reg(struct device *dev, unsigned int reg)
@@ -701,10 +923,71 @@ static bool tegra210_i2s_volatile_reg(struct device *dev, unsigned int reg)
return true;
default:
return false;
+ }
+}
+
+static bool tegra264_i2s_wr_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TEGRA210_I2S_RX_ENABLE ... TEGRA210_I2S_RX_SOFT_RESET:
+ case TEGRA210_I2S_RX_INT_MASK ... TEGRA264_I2S_RX_CYA:
+ case TEGRA264_I2S_TX_ENABLE ... TEGRA264_I2S_TX_SOFT_RESET:
+ case TEGRA264_I2S_TX_INT_MASK ... TEGRA264_I2S_TX_FIFO_RD_ACCESS_MODE:
+ case TEGRA264_I2S_TX_FIFO_THRESHOLD ... TEGRA264_I2S_TX_CYA:
+ case TEGRA264_I2S_ENABLE ... TEGRA264_I2S_CG:
+ case TEGRA264_I2S_INT_SET ... TEGRA264_I2S_INT_MASK:
+ case TEGRA264_I2S_CTRL ... TEGRA264_I2S_CYA:
+ return true;
+ default:
+ return false;
+ };
+}
+
+static bool tegra264_i2s_rd_reg(struct device *dev, unsigned int reg)
+{
+ if (tegra264_i2s_wr_reg(dev, reg))
+ return true;
+
+ switch (reg) {
+ case TEGRA210_I2S_RX_STATUS:
+ case TEGRA210_I2S_RX_INT_STATUS:
+ case TEGRA264_I2S_RX_CIF_FIFO_STATUS:
+ case TEGRA264_I2S_TX_STATUS:
+ case TEGRA264_I2S_TX_INT_STATUS:
+ case TEGRA264_I2S_TX_FIFO_RD_DATA:
+ case TEGRA264_I2S_TX_CIF_FIFO_STATUS:
+ case TEGRA264_I2S_STATUS:
+ case TEGRA264_I2S_INT_STATUS:
+ case TEGRA264_I2S_PIO_MODE_ENABLE:
+ case TEGRA264_I2S_PAD_MACRO_STATUS:
+ return true;
+ default:
+ return false;
};
}
-static const struct regmap_config tegra210_i2s_regmap_config = {
+static bool tegra264_i2s_volatile_reg(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case TEGRA210_I2S_RX_SOFT_RESET:
+ case TEGRA210_I2S_RX_STATUS:
+ case TEGRA210_I2S_RX_INT_STATUS:
+ case TEGRA264_I2S_RX_CIF_FIFO_STATUS:
+ case TEGRA264_I2S_TX_STATUS:
+ case TEGRA264_I2S_TX_INT_STATUS:
+ case TEGRA264_I2S_TX_FIFO_RD_DATA:
+ case TEGRA264_I2S_TX_CIF_FIFO_STATUS:
+ case TEGRA264_I2S_STATUS:
+ case TEGRA264_I2S_INT_STATUS:
+ case TEGRA264_I2S_TX_SOFT_RESET:
+ case TEGRA264_I2S_PAD_MACRO_STATUS:
+ return true;
+ default:
+ return false;
+ };
+}
+
+static const struct regmap_config tegra210_regmap_conf = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
@@ -717,21 +1000,70 @@ static const struct regmap_config tegra210_i2s_regmap_config = {
.cache_type = REGCACHE_FLAT,
};
+/*
+ * The AHUB HW modules are interconnected with CIF which are capable of
+ * supporting Channel and Sample bit format conversion. This needs different
+ * CIF Audio and client configuration. As one of the config comes from
+ * params_channels() or params_format(), the extra configuration is passed from
+ * CIF Port of DT I2S node which can help to perform this conversion.
+ *
+ * 4ch audio = 4ch client = 2ch 2ch
+ * -----> ADMAIF -----------> CIF -------------> I2S ---->
+ */
+static void tegra210_parse_client_convert(struct device *dev)
+{
+ struct tegra210_i2s *i2s = dev_get_drvdata(dev);
+ struct device_node *ports, *ep;
+ struct simple_util_data data = {};
+ int cif_port = 0;
+
+ ports = of_get_child_by_name(dev->of_node, "ports");
+ if (ports) {
+ ep = of_graph_get_endpoint_by_regs(ports, cif_port, -1);
+ if (ep) {
+ simple_util_parse_convert(ep, NULL, &data);
+ of_node_put(ep);
+ }
+ of_node_put(ports);
+ }
+
+ if (data.convert_channels)
+ i2s->client_channels = data.convert_channels;
+
+ if (data.convert_sample_format)
+ i2s->client_sample_format = simple_util_get_sample_fmt(&data);
+}
+
+static const struct regmap_config tegra264_regmap_conf = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = TEGRA264_I2S_PAD_MACRO_STATUS,
+ .writeable_reg = tegra264_i2s_wr_reg,
+ .readable_reg = tegra264_i2s_rd_reg,
+ .volatile_reg = tegra264_i2s_volatile_reg,
+ .reg_defaults = tegra264_i2s_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(tegra264_i2s_reg_defaults),
+ .cache_type = REGCACHE_FLAT,
+};
+
static int tegra210_i2s_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct tegra210_i2s *i2s;
void __iomem *regs;
- int err;
+ int err, id;
i2s = devm_kzalloc(dev, sizeof(*i2s), GFP_KERNEL);
if (!i2s)
return -ENOMEM;
+ i2s->soc_data = of_device_get_match_data(&pdev->dev);
i2s->rx_fifo_th = DEFAULT_I2S_RX_FIFO_THRESHOLD;
- i2s->tx_mask = DEFAULT_I2S_SLOT_MASK;
- i2s->rx_mask = DEFAULT_I2S_SLOT_MASK;
+ i2s->tx_mask = i2s->soc_data->slot_mask;
+ i2s->rx_mask = i2s->soc_data->slot_mask;
i2s->loopback = false;
+ i2s->client_sample_format = -EINVAL;
dev_set_drvdata(dev, i2s);
@@ -755,15 +1087,23 @@ static int tegra210_i2s_probe(struct platform_device *pdev)
return PTR_ERR(regs);
i2s->regmap = devm_regmap_init_mmio(dev, regs,
- &tegra210_i2s_regmap_config);
+ i2s->soc_data->regmap_conf);
if (IS_ERR(i2s->regmap)) {
dev_err(dev, "regmap init failed\n");
return PTR_ERR(i2s->regmap);
}
+ tegra210_parse_client_convert(dev);
+
regcache_cache_only(i2s->regmap, true);
- err = devm_snd_soc_register_component(dev, &tegra210_i2s_cmpnt,
+ /* Update the dais max channel as per soc */
+ for (id = 0; id < ARRAY_SIZE(tegra210_i2s_dais); id++) {
+ tegra210_i2s_dais[id].playback.channels_max = i2s->soc_data->max_ch;
+ tegra210_i2s_dais[id].capture.channels_max = i2s->soc_data->max_ch;
+ }
+
+ err = devm_snd_soc_register_component(dev, i2s->soc_data->i2s_cmpnt,
tegra210_i2s_dais,
ARRAY_SIZE(tegra210_i2s_dais));
if (err) {
@@ -776,22 +1116,42 @@ static int tegra210_i2s_probe(struct platform_device *pdev)
return 0;
}
-static int tegra210_i2s_remove(struct platform_device *pdev)
+static void tegra210_i2s_remove(struct platform_device *pdev)
{
pm_runtime_disable(&pdev->dev);
-
- return 0;
}
static const struct dev_pm_ops tegra210_i2s_pm_ops = {
- SET_RUNTIME_PM_OPS(tegra210_i2s_runtime_suspend,
- tegra210_i2s_runtime_resume, NULL)
- SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
- pm_runtime_force_resume)
+ RUNTIME_PM_OPS(tegra210_i2s_runtime_suspend,
+ tegra210_i2s_runtime_resume, NULL)
+ SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, pm_runtime_force_resume)
+};
+
+static const struct tegra_i2s_soc_data soc_data_tegra210 = {
+ .regmap_conf = &tegra210_regmap_conf,
+ .i2s_cmpnt = &tegra210_i2s_cmpnt,
+ .max_ch = TEGRA210_I2S_MAX_CHANNEL,
+ .tx_offset = TEGRA210_I2S_TX_OFFSET,
+ .i2s_ctrl_offset = TEGRA210_I2S_CTRL_OFFSET,
+ .fsync_width_mask = I2S_CTRL_FSYNC_WIDTH_MASK,
+ .fsync_width_shift = I2S_FSYNC_WIDTH_SHIFT,
+ .slot_mask = DEFAULT_I2S_SLOT_MASK,
+};
+
+static const struct tegra_i2s_soc_data soc_data_tegra264 = {
+ .regmap_conf = &tegra264_regmap_conf,
+ .i2s_cmpnt = &tegra264_i2s_cmpnt,
+ .max_ch = TEGRA264_I2S_MAX_CHANNEL,
+ .tx_offset = TEGRA264_I2S_TX_OFFSET,
+ .i2s_ctrl_offset = TEGRA264_I2S_CTRL_OFFSET,
+ .fsync_width_mask = TEGRA264_I2S_CTRL_FSYNC_WIDTH_MASK,
+ .fsync_width_shift = TEGRA264_I2S_FSYNC_WIDTH_SHIFT,
+ .slot_mask = TEGRA264_DEFAULT_I2S_SLOT_MASK,
};
static const struct of_device_id tegra210_i2s_of_match[] = {
- { .compatible = "nvidia,tegra210-i2s" },
+ { .compatible = "nvidia,tegra210-i2s", .data = &soc_data_tegra210 },
+ { .compatible = "nvidia,tegra264-i2s", .data = &soc_data_tegra264 },
{},
};
MODULE_DEVICE_TABLE(of, tegra210_i2s_of_match);
@@ -800,7 +1160,7 @@ static struct platform_driver tegra210_i2s_driver = {
.driver = {
.name = "tegra210-i2s",
.of_match_table = tegra210_i2s_of_match,
- .pm = &tegra210_i2s_pm_ops,
+ .pm = pm_ptr(&tegra210_i2s_pm_ops),
},
.probe = tegra210_i2s_probe,
.remove = tegra210_i2s_remove,
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.