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801-audio-0073-MLK-21957-3-ASoC-fsl_sai-add-bitcount-and-timestamp-.patch
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801-audio-0073-MLK-21957-3-ASoC-fsl_sai-add-bitcount-and-timestamp-.patch
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From 599235bd9d22c8cad90b0a7621b46d70cca94d31 Mon Sep 17 00:00:00 2001
From: Viorel Suman <viorel.suman@nxp.com>
Date: Wed, 5 Jun 2019 13:46:32 +0000
Subject: [PATCH] MLK-21957-3: ASoC: fsl_sai: add bitcount and timestamp
controls
Bitcount and timestamp support added in SAI IP recently.
Add the related controls in SAI driver.
Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
---
sound/soc/fsl/fsl_sai.c | 97 ++++++++++++++++++++++++++++++++++++++++++++++++-
sound/soc/fsl/fsl_sai.h | 6 +++
2 files changed, 102 insertions(+), 1 deletion(-)
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -992,6 +992,90 @@ static const struct snd_soc_dai_ops fsl_
.shutdown = fsl_sai_shutdown,
};
+static const char
+ *en_sl[] = { "Disabled", "Enabled", },
+ *inc_sl[] = { "On enabled and bitcount increment", "On enabled", };
+
+static const struct soc_enum tstmp_enum[] = {
+SOC_ENUM_SINGLE(FSL_SAI_TTCTL, 0, ARRAY_SIZE(en_sl), en_sl),
+SOC_ENUM_SINGLE(FSL_SAI_RTCTL, 0, ARRAY_SIZE(en_sl), en_sl),
+SOC_ENUM_SINGLE(FSL_SAI_TTCTL, 1, ARRAY_SIZE(inc_sl), inc_sl),
+SOC_ENUM_SINGLE(FSL_SAI_RTCTL, 1, ARRAY_SIZE(inc_sl), inc_sl),
+};
+
+int fsl_sai_get_reg(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+ struct soc_mreg_control *mc =
+ (struct soc_mreg_control *)kcontrol->private_value;
+ bool pm_active = pm_runtime_active(component->dev);
+ unsigned int regval;
+ int ret;
+
+ if (pm_active)
+ regcache_cache_bypass(component->regmap, true);
+
+ ret = snd_soc_component_read(component, mc->regbase, ®val);
+
+ if (pm_active)
+ regcache_cache_bypass(component->regmap, false);
+
+ if (ret < 0)
+ return ret;
+
+ ucontrol->value.integer.value[0] = regval;
+
+ return 0;
+}
+
+#define SOC_SINGLE_REG_RO(xname, xreg) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = (xname), \
+ .access = SNDRV_CTL_ELEM_ACCESS_READ | \
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
+ .info = snd_soc_info_xr_sx, .get = fsl_sai_get_reg, \
+ .private_value = (unsigned long)&(struct soc_mreg_control) \
+ { .regbase = xreg, .regcount = 1, .nbits = 32, \
+ .invert = 0, .min = 0, .max = 0xffffffff, } }
+
+static const struct snd_kcontrol_new fsl_sai_pb_ctrls[] = {
+ SOC_ENUM("Playback Timestamp Control", tstmp_enum[0]),
+ SOC_ENUM("Playback Timestamp Increment", tstmp_enum[2]),
+ SOC_SINGLE("Playback Timestamp Reset", FSL_SAI_TTCTL, 8, 1, 0),
+ SOC_SINGLE("Playback Bit Counter Reset", FSL_SAI_TTCTL, 9, 1, 0),
+ SOC_SINGLE_REG_RO("Playback Timestamp Counter", FSL_SAI_TTCTN),
+ SOC_SINGLE_REG_RO("Playback Bit Counter", FSL_SAI_TBCTN),
+ SOC_SINGLE_REG_RO("Playback Latched Timestamp Counter", FSL_SAI_TTCAP),
+};
+
+static const struct snd_kcontrol_new fsl_sai_cp_ctrls[] = {
+ SOC_ENUM("Capture Timestamp Control", tstmp_enum[1]),
+ SOC_ENUM("Capture Timestamp Increment", tstmp_enum[3]),
+ SOC_SINGLE("Capture Timestamp Reset", FSL_SAI_RTCTL, 8, 1, 0),
+ SOC_SINGLE("Capture Bit Counter Reset", FSL_SAI_RTCTL, 9, 1, 0),
+ SOC_SINGLE_REG_RO("Capture Timestamp Counter", FSL_SAI_RTCTN),
+ SOC_SINGLE_REG_RO("Capture Bit Counter", FSL_SAI_RBCTN),
+ SOC_SINGLE_REG_RO("Capture Latched Timestamp Counter", FSL_SAI_RTCAP),
+};
+
+static int fsl_sai_pcm_new(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_dai *dai)
+{
+ struct fsl_sai *sai = dev_get_drvdata(dai->dev);
+ struct snd_pcm *pcm = rtd->pcm;
+ bool ts_enabled = sai->verid.timestamp_en;
+ struct snd_soc_component *comp = dai->component;
+
+ if (ts_enabled && pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream)
+ snd_soc_add_component_controls(comp, fsl_sai_pb_ctrls,
+ ARRAY_SIZE(fsl_sai_pb_ctrls));
+
+ if (ts_enabled && pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream)
+ snd_soc_add_component_controls(comp, fsl_sai_cp_ctrls,
+ ARRAY_SIZE(fsl_sai_cp_ctrls));
+ return 0;
+}
+
static int fsl_sai_dai_probe(struct snd_soc_dai *cpu_dai)
{
struct fsl_sai *sai = dev_get_drvdata(cpu_dai->dev);
@@ -1030,6 +1114,7 @@ static int fsl_sai_dai_resume(struct snd
}
static struct snd_soc_dai_driver fsl_sai_dai = {
+ .pcm_new = fsl_sai_pcm_new,
.probe = fsl_sai_dai_probe,
.playback = {
.stream_name = "CPU-Playback",
@@ -1054,7 +1139,7 @@ static struct snd_soc_dai_driver fsl_sai
};
static const struct snd_soc_component_driver fsl_component = {
- .name = "fsl-sai",
+ .name = "fsl-sai",
};
static struct reg_default fsl_sai_v2_reg_defaults[] = {
@@ -1141,6 +1226,14 @@ static bool fsl_sai_readable_reg(struct
case FSL_SAI_MDIV:
case FSL_SAI_VERID:
case FSL_SAI_PARAM:
+ case FSL_SAI_TTCTN:
+ case FSL_SAI_RTCTN:
+ case FSL_SAI_TTCTL:
+ case FSL_SAI_TBCTN:
+ case FSL_SAI_TTCAP:
+ case FSL_SAI_RTCTL:
+ case FSL_SAI_RBCTN:
+ case FSL_SAI_RTCAP:
return true;
default:
return false;
@@ -1214,6 +1307,8 @@ static bool fsl_sai_writeable_reg(struct
case FSL_SAI_RMR:
case FSL_SAI_MCTL:
case FSL_SAI_MDIV:
+ case FSL_SAI_TTCTL:
+ case FSL_SAI_RTCTL:
return true;
default:
return false;
--- a/sound/soc/fsl/fsl_sai.h
+++ b/sound/soc/fsl/fsl_sai.h
@@ -210,6 +210,12 @@
#define SAI_FLAG_PMQOS BIT(0)
+/* SAI timestamp and bitcounter */
+#define FSL_SAI_xTCTL_TSEN BIT(0)
+#define FSL_SAI_xTCTL_TSINC BIT(1)
+#define FSL_SAI_xTCTL_RTSC BIT(8)
+#define FSL_SAI_xTCTL_RBC BIT(9)
+
struct fsl_sai_soc_data {
unsigned int fifo_depth;
unsigned int fifos;