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-rw-r--r--sound/soc/codecs/max9867.c557
1 files changed, 557 insertions, 0 deletions
diff --git a/sound/soc/codecs/max9867.c b/sound/soc/codecs/max9867.c
new file mode 100644
index 000000000..e51143df4
--- /dev/null
+++ b/sound/soc/codecs/max9867.c
@@ -0,0 +1,557 @@
+/*
+ * max9867.c -- max9867 ALSA SoC Audio driver
+ *
+ * Copyright 2013-15 Maxim Integrated Products
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include "max9867.h"
+
+static const char *const max9867_spmode[] = {
+ "Stereo Diff", "Mono Diff",
+ "Stereo Cap", "Mono Cap",
+ "Stereo Single", "Mono Single",
+ "Stereo Single Fast", "Mono Single Fast"
+};
+static const char *const max9867_sidetone_text[] = {
+ "None", "Left", "Right", "LeftRight", "LeftRightDiv2",
+};
+static const char *const max9867_filter_text[] = {"IIR", "FIR"};
+
+static SOC_ENUM_SINGLE_DECL(max9867_filter, MAX9867_CODECFLTR, 7,
+ max9867_filter_text);
+static SOC_ENUM_SINGLE_DECL(max9867_spkmode, MAX9867_MODECONFIG, 0,
+ max9867_spmode);
+static SOC_ENUM_SINGLE_DECL(max9867_sidetone, MAX9867_DACGAIN, 6,
+ max9867_sidetone_text);
+static DECLARE_TLV_DB_SCALE(max9860_capture_tlv, -600, 200, 0);
+static DECLARE_TLV_DB_SCALE(max9860_mic_tlv, 2000, 100, 1);
+static DECLARE_TLV_DB_SCALE(max9860_adc_left_tlv, -1200, 100, 1);
+static DECLARE_TLV_DB_SCALE(max9860_adc_right_tlv, -1200, 100, 1);
+static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(max98088_micboost_tlv,
+ 0, 1, TLV_DB_SCALE_ITEM(0, 2000, 0),
+ 2, 2, TLV_DB_SCALE_ITEM(3000, 0, 0),
+);
+
+static const struct snd_kcontrol_new max9867_snd_controls[] = {
+ SOC_DOUBLE_R("Master Playback Volume", MAX9867_LEFTVOL,
+ MAX9867_RIGHTVOL, 0, 63, 1),
+ SOC_DOUBLE_R_TLV("Capture Volume", MAX9867_LEFTMICGAIN,
+ MAX9867_RIGHTMICGAIN,
+ 0, 15, 1, max9860_capture_tlv),
+ SOC_DOUBLE_R_TLV("Mic Volume", MAX9867_LEFTMICGAIN,
+ MAX9867_RIGHTMICGAIN, 0, 31, 1, max9860_mic_tlv),
+ SOC_DOUBLE_R_TLV("Mic Boost Volume", MAX9867_LEFTMICGAIN,
+ MAX9867_RIGHTMICGAIN, 5, 3, 0, max98088_micboost_tlv),
+ SOC_ENUM("Digital Sidetone Src", max9867_sidetone),
+ SOC_SINGLE("Sidetone Volume", MAX9867_DACGAIN, 0, 31, 1),
+ SOC_SINGLE("DAC Volume", MAX9867_DACLEVEL, 4, 3, 0),
+ SOC_SINGLE("DAC Attenuation", MAX9867_DACLEVEL, 0, 15, 1),
+ SOC_SINGLE_TLV("ADC Left Volume", MAX9867_ADCLEVEL,
+ 4, 15, 1, max9860_adc_left_tlv),
+ SOC_SINGLE_TLV("ADC Right Volume", MAX9867_ADCLEVEL,
+ 0, 15, 1, max9860_adc_right_tlv),
+ SOC_ENUM("Speaker Mode", max9867_spkmode),
+ SOC_SINGLE("Volume Smoothing Switch", MAX9867_MODECONFIG, 6, 1, 0),
+ SOC_SINGLE("ZCD Switch", MAX9867_MODECONFIG, 5, 1, 0),
+ SOC_ENUM("DSP Filter", max9867_filter),
+};
+
+static const char *const max9867_mux[] = {"None", "Mic", "Line", "Mic_Line"};
+
+static SOC_ENUM_SINGLE_DECL(max9867_mux_enum,
+ MAX9867_INPUTCONFIG, MAX9867_INPUT_SHIFT,
+ max9867_mux);
+
+static const struct snd_kcontrol_new max9867_dapm_mux_controls =
+ SOC_DAPM_ENUM("Route", max9867_mux_enum);
+
+static const struct snd_kcontrol_new max9867_left_dapm_control =
+ SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 6, 1, 0);
+static const struct snd_kcontrol_new max9867_right_dapm_control =
+ SOC_DAPM_SINGLE("Switch", MAX9867_PWRMAN, 5, 1, 0);
+static const struct snd_kcontrol_new max9867_line_dapm_control =
+ SOC_DAPM_SINGLE("Switch", MAX9867_LEFTLINELVL, 6, 1, 1);
+
+static const struct snd_soc_dapm_widget max9867_dapm_widgets[] = {
+ SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_DAC("Left DAC", NULL, MAX9867_PWRMAN, 3, 0),
+ SND_SOC_DAPM_DAC("Right DAC", NULL, MAX9867_PWRMAN, 2, 0),
+ SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_OUTPUT("HPOUT"),
+
+ SND_SOC_DAPM_AIF_IN("DAI_IN", "HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_ADC("Left ADC", "HiFi Capture", MAX9867_PWRMAN, 1, 0),
+ SND_SOC_DAPM_ADC("Right ADC", "HiFi Capture", MAX9867_PWRMAN, 0, 0),
+ SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
+ &max9867_dapm_mux_controls),
+
+ SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
+ SND_SOC_DAPM_SWITCH("Left Line", MAX9867_LEFTLINELVL, 6, 1,
+ &max9867_left_dapm_control),
+ SND_SOC_DAPM_SWITCH("Right Line", MAX9867_RIGTHLINELVL, 6, 1,
+ &max9867_right_dapm_control),
+ SND_SOC_DAPM_SWITCH("Line Mixer", SND_SOC_NOPM, 0, 0,
+ &max9867_line_dapm_control),
+ SND_SOC_DAPM_INPUT("LINE_IN"),
+};
+
+static const struct snd_soc_dapm_route max9867_audio_map[] = {
+ {"Left DAC", NULL, "DAI_OUT"},
+ {"Right DAC", NULL, "DAI_OUT"},
+ {"Output Mixer", NULL, "Left DAC"},
+ {"Output Mixer", NULL, "Right DAC"},
+ {"HPOUT", NULL, "Output Mixer"},
+
+ {"Left ADC", NULL, "DAI_IN"},
+ {"Right ADC", NULL, "DAI_IN"},
+ {"Input Mixer", NULL, "Left ADC"},
+ {"Input Mixer", NULL, "Right ADC"},
+ {"Input Mux", "Line", "Input Mixer"},
+ {"Input Mux", "Mic", "Input Mixer"},
+ {"Input Mux", "Mic_Line", "Input Mixer"},
+ {"Right Line", "Switch", "Input Mux"},
+ {"Left Line", "Switch", "Input Mux"},
+ {"LINE_IN", NULL, "Left Line"},
+ {"LINE_IN", NULL, "Right Line"},
+};
+
+enum rates {
+ pcm_rate_8, pcm_rate_16, pcm_rate_24,
+ pcm_rate_32, pcm_rate_44,
+ pcm_rate_48, max_pcm_rate,
+};
+
+static const struct ni_div_rates {
+ u32 mclk;
+ u16 ni[max_pcm_rate];
+} ni_div[] = {
+ {11289600, {0x116A, 0x22D4, 0x343F, 0x45A9, 0x6000, 0x687D} },
+ {12000000, {0x1062, 0x20C5, 0x3127, 0x4189, 0x5A51, 0x624E} },
+ {12288000, {0x1000, 0x2000, 0x3000, 0x4000, 0x5833, 0x6000} },
+ {13000000, {0x0F20, 0x1E3F, 0x2D5F, 0x3C7F, 0x535F, 0x5ABE} },
+ {19200000, {0x0A3D, 0x147B, 0x1EB8, 0x28F6, 0x3873, 0x3D71} },
+ {24000000, {0x1062, 0x20C5, 0x1893, 0x4189, 0x5A51, 0x624E} },
+ {26000000, {0x0F20, 0x1E3F, 0x16AF, 0x3C7F, 0x535F, 0x5ABE} },
+ {27000000, {0x0E90, 0x1D21, 0x15D8, 0x3A41, 0x5048, 0x5762} },
+};
+
+static inline int get_ni_value(int mclk, int rate)
+{
+ int i, ret = 0;
+
+ /* find the closest rate index*/
+ for (i = 0; i < ARRAY_SIZE(ni_div); i++) {
+ if (ni_div[i].mclk >= mclk)
+ break;
+ }
+ if (i == ARRAY_SIZE(ni_div))
+ return -EINVAL;
+
+ switch (rate) {
+ case 8000:
+ return ni_div[i].ni[pcm_rate_8];
+ case 16000:
+ return ni_div[i].ni[pcm_rate_16];
+ case 32000:
+ return ni_div[i].ni[pcm_rate_32];
+ case 44100:
+ return ni_div[i].ni[pcm_rate_44];
+ case 48000:
+ return ni_div[i].ni[pcm_rate_48];
+ default:
+ pr_err("%s wrong rate %d\n", __func__, rate);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+static int max9867_dai_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+ unsigned int ni_h, ni_l;
+ int value;
+
+ value = get_ni_value(max9867->sysclk, params_rate(params));
+ if (value < 0)
+ return value;
+
+ ni_h = (0xFF00 & value) >> 8;
+ ni_l = 0x00FF & value;
+ /* set up the ni value */
+ regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
+ MAX9867_NI_HIGH_MASK, ni_h);
+ regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
+ MAX9867_NI_LOW_MASK, ni_l);
+ if (!max9867->master) {
+ /*
+ * digital pll locks on to any externally supplied LRCLK signal
+ * and also enable rapid lock mode.
+ */
+ regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKLOW,
+ MAX9867_RAPID_LOCK, MAX9867_RAPID_LOCK);
+ regmap_update_bits(max9867->regmap, MAX9867_AUDIOCLKHIGH,
+ MAX9867_PLL, MAX9867_PLL);
+ } else {
+ unsigned long int bclk_rate, pclk_bclk_ratio;
+ int bclk_value;
+
+ bclk_rate = params_rate(params) * 2 * params_width(params);
+ pclk_bclk_ratio = max9867->pclk/bclk_rate;
+ switch (params_width(params)) {
+ case 8:
+ case 16:
+ switch (pclk_bclk_ratio) {
+ case 2:
+ bclk_value = MAX9867_IFC1B_PCLK_2;
+ break;
+ case 4:
+ bclk_value = MAX9867_IFC1B_PCLK_4;
+ break;
+ case 8:
+ bclk_value = MAX9867_IFC1B_PCLK_8;
+ break;
+ case 16:
+ bclk_value = MAX9867_IFC1B_PCLK_16;
+ break;
+ default:
+ dev_err(component->dev,
+ "unsupported sampling rate\n");
+ return -EINVAL;
+ }
+ break;
+ case 24:
+ bclk_value = MAX9867_IFC1B_24BIT;
+ break;
+ case 32:
+ bclk_value = MAX9867_IFC1B_32BIT;
+ break;
+ default:
+ dev_err(component->dev, "unsupported sampling rate\n");
+ return -EINVAL;
+ }
+ regmap_update_bits(max9867->regmap, MAX9867_IFC1B,
+ MAX9867_IFC1B_BCLK_MASK, bclk_value);
+ }
+ return 0;
+}
+
+static int max9867_mute(struct snd_soc_dai *dai, int mute)
+{
+ struct snd_soc_component *component = dai->component;
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+
+ if (mute)
+ regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
+ MAX9867_DAC_MUTE_MASK, MAX9867_DAC_MUTE_MASK);
+ else
+ regmap_update_bits(max9867->regmap, MAX9867_DACLEVEL,
+ MAX9867_DAC_MUTE_MASK, 0);
+ return 0;
+}
+
+static int max9867_set_dai_sysclk(struct snd_soc_dai *codec_dai,
+ int clk_id, unsigned int freq, int dir)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+ int value = 0;
+
+ /* Set the prescaler based on the master clock frequency*/
+ if (freq >= 10000000 && freq <= 20000000) {
+ value |= MAX9867_PSCLK_10_20;
+ max9867->pclk = freq;
+ } else if (freq >= 20000000 && freq <= 40000000) {
+ value |= MAX9867_PSCLK_20_40;
+ max9867->pclk = freq/2;
+ } else if (freq >= 40000000 && freq <= 60000000) {
+ value |= MAX9867_PSCLK_40_60;
+ max9867->pclk = freq/4;
+ } else {
+ dev_err(component->dev,
+ "Invalid clock frequency %uHz (required 10-60MHz)\n",
+ freq);
+ return -EINVAL;
+ }
+ value = value << MAX9867_PSCLK_SHIFT;
+ max9867->sysclk = freq;
+ /* exact integer mode is not supported */
+ value &= ~MAX9867_FREQ_MASK;
+ regmap_update_bits(max9867->regmap, MAX9867_SYSCLK,
+ MAX9867_PSCLK_MASK, value);
+ return 0;
+}
+
+static int max9867_dai_set_fmt(struct snd_soc_dai *codec_dai,
+ unsigned int fmt)
+{
+ struct snd_soc_component *component = codec_dai->component;
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+ u8 iface1A = 0, iface1B = 0;
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ max9867->master = 1;
+ iface1A |= MAX9867_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ max9867->master = 0;
+ iface1A &= ~MAX9867_MASTER;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ iface1A |= MAX9867_I2S_DLY;
+ break;
+ case SND_SOC_DAIFMT_DSP_A:
+ iface1A |= MAX9867_TDM_MODE | MAX9867_SDOUT_HIZ;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Clock inversion bits, BCI and WCI */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_IF:
+ iface1A |= MAX9867_WCI_MODE | MAX9867_BCI_MODE;
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ iface1A |= MAX9867_BCI_MODE;
+ break;
+ case SND_SOC_DAIFMT_NB_IF:
+ iface1A |= MAX9867_WCI_MODE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_write(max9867->regmap, MAX9867_IFC1A, iface1A);
+ regmap_write(max9867->regmap, MAX9867_IFC1B, iface1B);
+ return 0;
+}
+
+static const struct snd_soc_dai_ops max9867_dai_ops = {
+ .set_fmt = max9867_dai_set_fmt,
+ .set_sysclk = max9867_set_dai_sysclk,
+ .digital_mute = max9867_mute,
+ .hw_params = max9867_dai_hw_params,
+};
+
+#define MAX9867_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
+ SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
+#define MAX9867_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
+
+static struct snd_soc_dai_driver max9867_dai[] = {
+ {
+ .name = "max9867-aif1",
+ .playback = {
+ .stream_name = "HiFi Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = MAX9867_RATES,
+ .formats = MAX9867_FORMATS,
+ },
+ .capture = {
+ .stream_name = "HiFi Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = MAX9867_RATES,
+ .formats = MAX9867_FORMATS,
+ },
+ .ops = &max9867_dai_ops,
+ .symmetric_rates = 1,
+ }
+};
+
+#ifdef CONFIG_PM
+static int max9867_suspend(struct snd_soc_component *component)
+{
+ snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
+
+ return 0;
+}
+
+static int max9867_resume(struct snd_soc_component *component)
+{
+ snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
+
+ return 0;
+}
+#else
+#define max9867_suspend NULL
+#define max9867_resume NULL
+#endif
+
+static int max9867_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ int err;
+ struct max9867_priv *max9867 = snd_soc_component_get_drvdata(component);
+
+ switch (level) {
+ case SND_SOC_BIAS_STANDBY:
+ if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
+ err = regcache_sync(max9867->regmap);
+ if (err)
+ return err;
+
+ err = regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
+ MAX9867_SHTDOWN, MAX9867_SHTDOWN);
+ if (err)
+ return err;
+ }
+ break;
+ case SND_SOC_BIAS_OFF:
+ err = regmap_update_bits(max9867->regmap, MAX9867_PWRMAN,
+ MAX9867_SHTDOWN, 0);
+ if (err)
+ return err;
+
+ regcache_mark_dirty(max9867->regmap);
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver max9867_component = {
+ .controls = max9867_snd_controls,
+ .num_controls = ARRAY_SIZE(max9867_snd_controls),
+ .dapm_routes = max9867_audio_map,
+ .num_dapm_routes = ARRAY_SIZE(max9867_audio_map),
+ .dapm_widgets = max9867_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(max9867_dapm_widgets),
+ .suspend = max9867_suspend,
+ .resume = max9867_resume,
+ .set_bias_level = max9867_set_bias_level,
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
+static bool max9867_volatile_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case MAX9867_STATUS:
+ case MAX9867_JACKSTATUS:
+ case MAX9867_AUXHIGH:
+ case MAX9867_AUXLOW:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct reg_default max9867_reg[] = {
+ { 0x04, 0x00 },
+ { 0x05, 0x00 },
+ { 0x06, 0x00 },
+ { 0x07, 0x00 },
+ { 0x08, 0x00 },
+ { 0x09, 0x00 },
+ { 0x0A, 0x00 },
+ { 0x0B, 0x00 },
+ { 0x0C, 0x00 },
+ { 0x0D, 0x00 },
+ { 0x0E, 0x00 },
+ { 0x0F, 0x00 },
+ { 0x10, 0x00 },
+ { 0x11, 0x00 },
+ { 0x12, 0x00 },
+ { 0x13, 0x00 },
+ { 0x14, 0x00 },
+ { 0x15, 0x00 },
+ { 0x16, 0x00 },
+ { 0x17, 0x00 },
+};
+
+static const struct regmap_config max9867_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = MAX9867_REVISION,
+ .reg_defaults = max9867_reg,
+ .num_reg_defaults = ARRAY_SIZE(max9867_reg),
+ .volatile_reg = max9867_volatile_register,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int max9867_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct max9867_priv *max9867;
+ int ret = 0, reg;
+
+ max9867 = devm_kzalloc(&i2c->dev,
+ sizeof(*max9867), GFP_KERNEL);
+ if (!max9867)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, max9867);
+ max9867->regmap = devm_regmap_init_i2c(i2c, &max9867_regmap);
+ if (IS_ERR(max9867->regmap)) {
+ ret = PTR_ERR(max9867->regmap);
+ dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
+ return ret;
+ }
+ ret = regmap_read(max9867->regmap,
+ MAX9867_REVISION, &reg);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to read: %d\n", ret);
+ return ret;
+ }
+ dev_info(&i2c->dev, "device revision: %x\n", reg);
+ ret = devm_snd_soc_register_component(&i2c->dev, &max9867_component,
+ max9867_dai, ARRAY_SIZE(max9867_dai));
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to register component: %d\n", ret);
+ return ret;
+ }
+ return ret;
+}
+
+static const struct i2c_device_id max9867_i2c_id[] = {
+ { "max9867", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max9867_i2c_id);
+
+static const struct of_device_id max9867_of_match[] = {
+ { .compatible = "maxim,max9867", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, max9867_of_match);
+
+static struct i2c_driver max9867_i2c_driver = {
+ .driver = {
+ .name = "max9867",
+ .of_match_table = of_match_ptr(max9867_of_match),
+ },
+ .probe = max9867_i2c_probe,
+ .id_table = max9867_i2c_id,
+};
+
+module_i2c_driver(max9867_i2c_driver);
+
+MODULE_AUTHOR("anish kumar <yesanishhere@gmail.com>");
+MODULE_DESCRIPTION("ALSA SoC MAX9867 driver");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 19:38:12 +0000