ASoC: meson: add g12a tohdmitx control
Add support for the hdmitx control glue of the Amlogic g12a SoC family. This glue links the 3 TDM and 2 SPDIF output interfaces of the SoC to the related inputs of the Synopsys HDMI controller found in these SoCs. Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Tested-by: Neil Armstrong <narmstrong@baylibre.com> Tested-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jerome Brunet
Mark Brown
parent
0a8f1117a6
commit
c8609f3870
|
|
@ -56,6 +56,7 @@ config SND_MESON_AXG_SOUND_CARD
|
|||
imply SND_MESON_AXG_SPDIFOUT
|
||||
imply SND_MESON_AXG_SPDIFIN
|
||||
imply SND_MESON_AXG_PDM
|
||||
imply SND_MESON_G12A_TOHDMITX if DRM_MESON_DW_HDMI
|
||||
help
|
||||
Select Y or M to add support for the AXG SoC sound card
|
||||
|
||||
|
|
@ -82,4 +83,11 @@ config SND_MESON_AXG_PDM
|
|||
help
|
||||
Select Y or M to add support for PDM input embedded
|
||||
in the Amlogic AXG SoC family
|
||||
|
||||
config SND_MESON_G12A_TOHDMITX
|
||||
tristate "Amlogic G12A To HDMI TX Control Support"
|
||||
imply SND_SOC_HDMI_CODEC
|
||||
help
|
||||
Select Y or M to add support for HDMI audio on the g12a SoC
|
||||
family
|
||||
endmenu
|
||||
|
|
|
|||
|
|
@ -11,6 +11,7 @@ snd-soc-meson-axg-sound-card-objs := axg-card.o
|
|||
snd-soc-meson-axg-spdifin-objs := axg-spdifin.o
|
||||
snd-soc-meson-axg-spdifout-objs := axg-spdifout.o
|
||||
snd-soc-meson-axg-pdm-objs := axg-pdm.o
|
||||
snd-soc-meson-g12a-tohdmitx-objs := g12a-tohdmitx.o
|
||||
|
||||
obj-$(CONFIG_SND_MESON_AXG_FIFO) += snd-soc-meson-axg-fifo.o
|
||||
obj-$(CONFIG_SND_MESON_AXG_FRDDR) += snd-soc-meson-axg-frddr.o
|
||||
|
|
@ -23,3 +24,4 @@ obj-$(CONFIG_SND_MESON_AXG_SOUND_CARD) += snd-soc-meson-axg-sound-card.o
|
|||
obj-$(CONFIG_SND_MESON_AXG_SPDIFIN) += snd-soc-meson-axg-spdifin.o
|
||||
obj-$(CONFIG_SND_MESON_AXG_SPDIFOUT) += snd-soc-meson-axg-spdifout.o
|
||||
obj-$(CONFIG_SND_MESON_AXG_PDM) += snd-soc-meson-axg-pdm.o
|
||||
obj-$(CONFIG_SND_MESON_G12A_TOHDMITX) += snd-soc-meson-g12a-tohdmitx.o
|
||||
|
|
|
|||
413
sound/soc/meson/g12a-tohdmitx.c
Normal file
413
sound/soc/meson/g12a-tohdmitx.c
Normal file
|
|
@ -0,0 +1,413 @@
|
|||
// SPDX-License-Identifier: GPL-2.0
|
||||
//
|
||||
// Copyright (c) 2019 BayLibre, SAS.
|
||||
// Author: Jerome Brunet <jbrunet@baylibre.com>
|
||||
|
||||
#include <linux/bitfield.h>
|
||||
#include <linux/clk.h>
|
||||
#include <linux/module.h>
|
||||
#include <sound/pcm_params.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <sound/soc.h>
|
||||
#include <sound/soc-dai.h>
|
||||
|
||||
#include <dt-bindings/sound/meson-g12a-tohdmitx.h>
|
||||
|
||||
#define G12A_TOHDMITX_DRV_NAME "g12a-tohdmitx"
|
||||
|
||||
#define TOHDMITX_CTRL0 0x0
|
||||
#define CTRL0_ENABLE_SHIFT 31
|
||||
#define CTRL0_I2S_DAT_SEL GENMASK(13, 12)
|
||||
#define CTRL0_I2S_LRCLK_SEL GENMASK(9, 8)
|
||||
#define CTRL0_I2S_BLK_CAP_INV BIT(7)
|
||||
#define CTRL0_I2S_BCLK_O_INV BIT(6)
|
||||
#define CTRL0_I2S_BCLK_SEL GENMASK(5, 4)
|
||||
#define CTRL0_SPDIF_CLK_CAP_INV BIT(3)
|
||||
#define CTRL0_SPDIF_CLK_O_INV BIT(2)
|
||||
#define CTRL0_SPDIF_SEL BIT(1)
|
||||
#define CTRL0_SPDIF_CLK_SEL BIT(0)
|
||||
|
||||
struct g12a_tohdmitx_input {
|
||||
struct snd_pcm_hw_params params;
|
||||
unsigned int fmt;
|
||||
};
|
||||
|
||||
static struct snd_soc_dapm_widget *
|
||||
g12a_tohdmitx_get_input(struct snd_soc_dapm_widget *w)
|
||||
{
|
||||
struct snd_soc_dapm_path *p = NULL;
|
||||
struct snd_soc_dapm_widget *in;
|
||||
|
||||
snd_soc_dapm_widget_for_each_source_path(w, p) {
|
||||
if (!p->connect)
|
||||
continue;
|
||||
|
||||
/* Check that we still are in the same component */
|
||||
if (snd_soc_dapm_to_component(w->dapm) !=
|
||||
snd_soc_dapm_to_component(p->source->dapm))
|
||||
continue;
|
||||
|
||||
if (p->source->id == snd_soc_dapm_dai_in)
|
||||
return p->source;
|
||||
|
||||
in = g12a_tohdmitx_get_input(p->source);
|
||||
if (in)
|
||||
return in;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static struct g12a_tohdmitx_input *
|
||||
g12a_tohdmitx_get_input_data(struct snd_soc_dapm_widget *w)
|
||||
{
|
||||
struct snd_soc_dapm_widget *in =
|
||||
g12a_tohdmitx_get_input(w);
|
||||
struct snd_soc_dai *dai;
|
||||
|
||||
if (WARN_ON(!in))
|
||||
return NULL;
|
||||
|
||||
dai = in->priv;
|
||||
|
||||
return dai->playback_dma_data;
|
||||
}
|
||||
|
||||
static const char * const g12a_tohdmitx_i2s_mux_texts[] = {
|
||||
"I2S A", "I2S B", "I2S C",
|
||||
};
|
||||
|
||||
static SOC_ENUM_SINGLE_EXT_DECL(g12a_tohdmitx_i2s_mux_enum,
|
||||
g12a_tohdmitx_i2s_mux_texts);
|
||||
|
||||
static int g12a_tohdmitx_get_input_val(struct snd_soc_component *component,
|
||||
unsigned int mask)
|
||||
{
|
||||
unsigned int val;
|
||||
|
||||
snd_soc_component_read(component, TOHDMITX_CTRL0, &val);
|
||||
return (val & mask) >> __ffs(mask);
|
||||
}
|
||||
|
||||
static int g12a_tohdmitx_i2s_mux_get_enum(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
struct snd_soc_component *component =
|
||||
snd_soc_dapm_kcontrol_component(kcontrol);
|
||||
|
||||
ucontrol->value.enumerated.item[0] =
|
||||
g12a_tohdmitx_get_input_val(component, CTRL0_I2S_DAT_SEL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int g12a_tohdmitx_i2s_mux_put_enum(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
struct snd_soc_component *component =
|
||||
snd_soc_dapm_kcontrol_component(kcontrol);
|
||||
struct snd_soc_dapm_context *dapm =
|
||||
snd_soc_dapm_kcontrol_dapm(kcontrol);
|
||||
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
|
||||
unsigned int mux = ucontrol->value.enumerated.item[0];
|
||||
unsigned int val = g12a_tohdmitx_get_input_val(component,
|
||||
CTRL0_I2S_DAT_SEL);
|
||||
|
||||
/* Force disconnect of the mux while updating */
|
||||
if (val != mux)
|
||||
snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
|
||||
|
||||
snd_soc_component_update_bits(component, TOHDMITX_CTRL0,
|
||||
CTRL0_I2S_DAT_SEL |
|
||||
CTRL0_I2S_LRCLK_SEL |
|
||||
CTRL0_I2S_BCLK_SEL,
|
||||
FIELD_PREP(CTRL0_I2S_DAT_SEL, mux) |
|
||||
FIELD_PREP(CTRL0_I2S_LRCLK_SEL, mux) |
|
||||
FIELD_PREP(CTRL0_I2S_BCLK_SEL, mux));
|
||||
|
||||
snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct snd_kcontrol_new g12a_tohdmitx_i2s_mux =
|
||||
SOC_DAPM_ENUM_EXT("I2S Source", g12a_tohdmitx_i2s_mux_enum,
|
||||
g12a_tohdmitx_i2s_mux_get_enum,
|
||||
g12a_tohdmitx_i2s_mux_put_enum);
|
||||
|
||||
static const char * const g12a_tohdmitx_spdif_mux_texts[] = {
|
||||
"SPDIF A", "SPDIF B",
|
||||
};
|
||||
|
||||
static SOC_ENUM_SINGLE_EXT_DECL(g12a_tohdmitx_spdif_mux_enum,
|
||||
g12a_tohdmitx_spdif_mux_texts);
|
||||
|
||||
static int g12a_tohdmitx_spdif_mux_get_enum(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
struct snd_soc_component *component =
|
||||
snd_soc_dapm_kcontrol_component(kcontrol);
|
||||
|
||||
ucontrol->value.enumerated.item[0] =
|
||||
g12a_tohdmitx_get_input_val(component, CTRL0_SPDIF_SEL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol,
|
||||
struct snd_ctl_elem_value *ucontrol)
|
||||
{
|
||||
struct snd_soc_component *component =
|
||||
snd_soc_dapm_kcontrol_component(kcontrol);
|
||||
struct snd_soc_dapm_context *dapm =
|
||||
snd_soc_dapm_kcontrol_dapm(kcontrol);
|
||||
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
|
||||
unsigned int mux = ucontrol->value.enumerated.item[0];
|
||||
unsigned int val = g12a_tohdmitx_get_input_val(component,
|
||||
CTRL0_SPDIF_SEL);
|
||||
|
||||
/* Force disconnect of the mux while updating */
|
||||
if (val != mux)
|
||||
snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
|
||||
|
||||
snd_soc_component_update_bits(component, TOHDMITX_CTRL0,
|
||||
CTRL0_SPDIF_SEL |
|
||||
CTRL0_SPDIF_CLK_SEL,
|
||||
FIELD_PREP(CTRL0_SPDIF_SEL, mux) |
|
||||
FIELD_PREP(CTRL0_SPDIF_CLK_SEL, mux));
|
||||
|
||||
snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct snd_kcontrol_new g12a_tohdmitx_spdif_mux =
|
||||
SOC_DAPM_ENUM_EXT("SPDIF Source", g12a_tohdmitx_spdif_mux_enum,
|
||||
g12a_tohdmitx_spdif_mux_get_enum,
|
||||
g12a_tohdmitx_spdif_mux_put_enum);
|
||||
|
||||
static const struct snd_kcontrol_new g12a_tohdmitx_out_enable =
|
||||
SOC_DAPM_SINGLE_AUTODISABLE("Switch", TOHDMITX_CTRL0,
|
||||
CTRL0_ENABLE_SHIFT, 1, 0);
|
||||
|
||||
static const struct snd_soc_dapm_widget g12a_tohdmitx_widgets[] = {
|
||||
SND_SOC_DAPM_MUX("I2S SRC", SND_SOC_NOPM, 0, 0,
|
||||
&g12a_tohdmitx_i2s_mux),
|
||||
SND_SOC_DAPM_SWITCH("I2S OUT EN", SND_SOC_NOPM, 0, 0,
|
||||
&g12a_tohdmitx_out_enable),
|
||||
SND_SOC_DAPM_MUX("SPDIF SRC", SND_SOC_NOPM, 0, 0,
|
||||
&g12a_tohdmitx_spdif_mux),
|
||||
SND_SOC_DAPM_SWITCH("SPDIF OUT EN", SND_SOC_NOPM, 0, 0,
|
||||
&g12a_tohdmitx_out_enable),
|
||||
};
|
||||
|
||||
static int g12a_tohdmitx_input_probe(struct snd_soc_dai *dai)
|
||||
{
|
||||
struct g12a_tohdmitx_input *data;
|
||||
|
||||
data = kzalloc(sizeof(*data), GFP_KERNEL);
|
||||
if (!data)
|
||||
return -ENOMEM;
|
||||
|
||||
dai->playback_dma_data = data;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int g12a_tohdmitx_input_remove(struct snd_soc_dai *dai)
|
||||
{
|
||||
kfree(dai->playback_dma_data);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int g12a_tohdmitx_input_hw_params(struct snd_pcm_substream *substream,
|
||||
struct snd_pcm_hw_params *params,
|
||||
struct snd_soc_dai *dai)
|
||||
{
|
||||
struct g12a_tohdmitx_input *data = dai->playback_dma_data;
|
||||
|
||||
/* Save the stream params for the downstream link */
|
||||
memcpy(&data->params, params, sizeof(*params));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int g12a_tohdmitx_output_hw_params(struct snd_pcm_substream *substream,
|
||||
struct snd_pcm_hw_params *params,
|
||||
struct snd_soc_dai *dai)
|
||||
{
|
||||
struct g12a_tohdmitx_input *in_data =
|
||||
g12a_tohdmitx_get_input_data(dai->capture_widget);
|
||||
|
||||
if (!in_data)
|
||||
return -ENODEV;
|
||||
|
||||
memcpy(params, &in_data->params, sizeof(*params));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int g12a_tohdmitx_input_set_fmt(struct snd_soc_dai *dai,
|
||||
unsigned int fmt)
|
||||
{
|
||||
struct g12a_tohdmitx_input *data = dai->playback_dma_data;
|
||||
|
||||
/* Save the source stream format for the downstream link */
|
||||
data->fmt = fmt;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int g12a_tohdmitx_output_startup(struct snd_pcm_substream *substream,
|
||||
struct snd_soc_dai *dai)
|
||||
{
|
||||
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
||||
struct g12a_tohdmitx_input *in_data =
|
||||
g12a_tohdmitx_get_input_data(dai->capture_widget);
|
||||
|
||||
if (!in_data)
|
||||
return -ENODEV;
|
||||
|
||||
if (!in_data->fmt)
|
||||
return 0;
|
||||
|
||||
return snd_soc_runtime_set_dai_fmt(rtd, in_data->fmt);
|
||||
}
|
||||
|
||||
static const struct snd_soc_dai_ops g12a_tohdmitx_input_ops = {
|
||||
.hw_params = g12a_tohdmitx_input_hw_params,
|
||||
.set_fmt = g12a_tohdmitx_input_set_fmt,
|
||||
};
|
||||
|
||||
static const struct snd_soc_dai_ops g12a_tohdmitx_output_ops = {
|
||||
.hw_params = g12a_tohdmitx_output_hw_params,
|
||||
.startup = g12a_tohdmitx_output_startup,
|
||||
};
|
||||
|
||||
#define TOHDMITX_SPDIF_FORMATS \
|
||||
(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
|
||||
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE)
|
||||
|
||||
#define TOHDMITX_I2S_FORMATS \
|
||||
(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
|
||||
SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE | \
|
||||
SNDRV_PCM_FMTBIT_S32_LE)
|
||||
|
||||
#define TOHDMITX_STREAM(xname, xsuffix, xfmt, xchmax) \
|
||||
{ \
|
||||
.stream_name = xname " " xsuffix, \
|
||||
.channels_min = 1, \
|
||||
.channels_max = (xchmax), \
|
||||
.rate_min = 8000, \
|
||||
.rate_max = 192000, \
|
||||
.formats = (xfmt), \
|
||||
}
|
||||
|
||||
#define TOHDMITX_IN(xname, xid, xfmt, xchmax) { \
|
||||
.name = xname, \
|
||||
.id = (xid), \
|
||||
.playback = TOHDMITX_STREAM(xname, "Playback", xfmt, xchmax), \
|
||||
.ops = &g12a_tohdmitx_input_ops, \
|
||||
.probe = g12a_tohdmitx_input_probe, \
|
||||
.remove = g12a_tohdmitx_input_remove, \
|
||||
}
|
||||
|
||||
#define TOHDMITX_OUT(xname, xid, xfmt, xchmax) { \
|
||||
.name = xname, \
|
||||
.id = (xid), \
|
||||
.capture = TOHDMITX_STREAM(xname, "Capture", xfmt, xchmax), \
|
||||
.ops = &g12a_tohdmitx_output_ops, \
|
||||
}
|
||||
|
||||
static struct snd_soc_dai_driver g12a_tohdmitx_dai_drv[] = {
|
||||
TOHDMITX_IN("I2S IN A", TOHDMITX_I2S_IN_A,
|
||||
TOHDMITX_I2S_FORMATS, 8),
|
||||
TOHDMITX_IN("I2S IN B", TOHDMITX_I2S_IN_B,
|
||||
TOHDMITX_I2S_FORMATS, 8),
|
||||
TOHDMITX_IN("I2S IN C", TOHDMITX_I2S_IN_C,
|
||||
TOHDMITX_I2S_FORMATS, 8),
|
||||
TOHDMITX_OUT("I2S OUT", TOHDMITX_I2S_OUT,
|
||||
TOHDMITX_I2S_FORMATS, 8),
|
||||
TOHDMITX_IN("SPDIF IN A", TOHDMITX_SPDIF_IN_A,
|
||||
TOHDMITX_SPDIF_FORMATS, 2),
|
||||
TOHDMITX_IN("SPDIF IN B", TOHDMITX_SPDIF_IN_B,
|
||||
TOHDMITX_SPDIF_FORMATS, 2),
|
||||
TOHDMITX_OUT("SPDIF OUT", TOHDMITX_SPDIF_OUT,
|
||||
TOHDMITX_SPDIF_FORMATS, 2),
|
||||
};
|
||||
|
||||
static int g12a_tohdmi_component_probe(struct snd_soc_component *c)
|
||||
{
|
||||
/* Initialize the static clock parameters */
|
||||
return snd_soc_component_write(c, TOHDMITX_CTRL0,
|
||||
CTRL0_I2S_BLK_CAP_INV | CTRL0_SPDIF_CLK_CAP_INV);
|
||||
}
|
||||
|
||||
static const struct snd_soc_dapm_route g12a_tohdmitx_routes[] = {
|
||||
{ "I2S SRC", "I2S A", "I2S IN A Playback" },
|
||||
{ "I2S SRC", "I2S B", "I2S IN B Playback" },
|
||||
{ "I2S SRC", "I2S C", "I2S IN C Playback" },
|
||||
{ "I2S OUT EN", "Switch", "I2S SRC" },
|
||||
{ "I2S OUT Capture", NULL, "I2S OUT EN" },
|
||||
{ "SPDIF SRC", "SPDIF A", "SPDIF IN A Playback" },
|
||||
{ "SPDIF SRC", "SPDIF B", "SPDIF IN B Playback" },
|
||||
{ "SPDIF OUT EN", "Switch", "SPDIF SRC" },
|
||||
{ "SPDIF OUT Capture", NULL, "SPDIF OUT EN" },
|
||||
};
|
||||
|
||||
static const struct snd_soc_component_driver g12a_tohdmitx_component_drv = {
|
||||
.probe = g12a_tohdmi_component_probe,
|
||||
.dapm_widgets = g12a_tohdmitx_widgets,
|
||||
.num_dapm_widgets = ARRAY_SIZE(g12a_tohdmitx_widgets),
|
||||
.dapm_routes = g12a_tohdmitx_routes,
|
||||
.num_dapm_routes = ARRAY_SIZE(g12a_tohdmitx_routes),
|
||||
.endianness = 1,
|
||||
.non_legacy_dai_naming = 1,
|
||||
};
|
||||
|
||||
static const struct regmap_config g12a_tohdmitx_regmap_cfg = {
|
||||
.reg_bits = 32,
|
||||
.val_bits = 32,
|
||||
.reg_stride = 4,
|
||||
};
|
||||
|
||||
static const struct of_device_id g12a_tohdmitx_of_match[] = {
|
||||
{ .compatible = "amlogic,g12a-tohdmitx", },
|
||||
{}
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, g12a_tohdmitx_of_match);
|
||||
|
||||
static int g12a_tohdmitx_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct resource *res;
|
||||
void __iomem *regs;
|
||||
struct regmap *map;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
regs = devm_ioremap_resource(dev, res);
|
||||
if (IS_ERR(regs))
|
||||
return PTR_ERR(regs);
|
||||
|
||||
map = devm_regmap_init_mmio(dev, regs, &g12a_tohdmitx_regmap_cfg);
|
||||
if (IS_ERR(map)) {
|
||||
dev_err(dev, "failed to init regmap: %ld\n",
|
||||
PTR_ERR(map));
|
||||
return PTR_ERR(map);
|
||||
}
|
||||
|
||||
return devm_snd_soc_register_component(dev,
|
||||
&g12a_tohdmitx_component_drv, g12a_tohdmitx_dai_drv,
|
||||
ARRAY_SIZE(g12a_tohdmitx_dai_drv));
|
||||
}
|
||||
|
||||
static struct platform_driver g12a_tohdmitx_pdrv = {
|
||||
.driver = {
|
||||
.name = G12A_TOHDMITX_DRV_NAME,
|
||||
.of_match_table = g12a_tohdmitx_of_match,
|
||||
},
|
||||
.probe = g12a_tohdmitx_probe,
|
||||
};
|
||||
module_platform_driver(g12a_tohdmitx_pdrv);
|
||||
|
||||
MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
|
||||
MODULE_DESCRIPTION("Amlogic G12a To HDMI Tx Control Codec Driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Loading…
Reference in New Issue
Block a user