diff options
Diffstat (limited to 'sound/soc/codecs/tas2764.c')
-rw-r--r-- | sound/soc/codecs/tas2764.c | 252 |
1 files changed, 165 insertions, 87 deletions
diff --git a/sound/soc/codecs/tas2764.c b/sound/soc/codecs/tas2764.c index 9265af41c235..2e0ed3e68fa5 100644 --- a/sound/soc/codecs/tas2764.c +++ b/sound/soc/codecs/tas2764.c @@ -31,51 +31,96 @@ struct tas2764_priv { struct gpio_desc *sdz_gpio; struct regmap *regmap; struct device *dev; + int irq; int v_sense_slot; int i_sense_slot; + + bool dac_powered; + bool unmuted; +}; + +static const char *tas2764_int_ltch0_msgs[8] = { + "fault: over temperature", /* INT_LTCH0 & BIT(0) */ + "fault: over current", + "fault: bad TDM clock", + "limiter active", + "fault: PVDD below limiter inflection point", + "fault: limiter max attenuation", + "fault: BOP infinite hold", + "fault: BOP mute", /* INT_LTCH0 & BIT(7) */ +}; + +static const unsigned int tas2764_int_readout_regs[6] = { + TAS2764_INT_LTCH0, + TAS2764_INT_LTCH1, + TAS2764_INT_LTCH1_0, + TAS2764_INT_LTCH2, + TAS2764_INT_LTCH3, + TAS2764_INT_LTCH4, }; +static irqreturn_t tas2764_irq(int irq, void *data) +{ + struct tas2764_priv *tas2764 = data; + u8 latched[6] = {0, 0, 0, 0, 0, 0}; + int ret = IRQ_NONE; + int i; + + for (i = 0; i < ARRAY_SIZE(latched); i++) + latched[i] = snd_soc_component_read(tas2764->component, + tas2764_int_readout_regs[i]); + + for (i = 0; i < 8; i++) { + if (latched[0] & BIT(i)) { + dev_crit_ratelimited(tas2764->dev, "%s\n", + tas2764_int_ltch0_msgs[i]); + ret = IRQ_HANDLED; + } + } + + if (latched[0]) { + dev_err_ratelimited(tas2764->dev, "other context to the fault: %02x,%02x,%02x,%02x,%02x", + latched[1], latched[2], latched[3], latched[4], latched[5]); + snd_soc_component_update_bits(tas2764->component, + TAS2764_INT_CLK_CFG, + TAS2764_INT_CLK_CFG_IRQZ_CLR, + TAS2764_INT_CLK_CFG_IRQZ_CLR); + } + + return ret; +} + static void tas2764_reset(struct tas2764_priv *tas2764) { if (tas2764->reset_gpio) { gpiod_set_value_cansleep(tas2764->reset_gpio, 0); msleep(20); gpiod_set_value_cansleep(tas2764->reset_gpio, 1); + usleep_range(1000, 2000); } snd_soc_component_write(tas2764->component, TAS2764_SW_RST, TAS2764_RST); + usleep_range(1000, 2000); } -static int tas2764_set_bias_level(struct snd_soc_component *component, - enum snd_soc_bias_level level) +static int tas2764_update_pwr_ctrl(struct tas2764_priv *tas2764) { - struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); + struct snd_soc_component *component = tas2764->component; + unsigned int val; + int ret; - switch (level) { - case SND_SOC_BIAS_ON: - snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_ACTIVE); - break; - case SND_SOC_BIAS_STANDBY: - case SND_SOC_BIAS_PREPARE: - snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_MUTE); - break; - case SND_SOC_BIAS_OFF: - snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_SHUTDOWN); - break; + if (tas2764->dac_powered) + val = tas2764->unmuted ? + TAS2764_PWR_CTRL_ACTIVE : TAS2764_PWR_CTRL_MUTE; + else + val = TAS2764_PWR_CTRL_SHUTDOWN; - default: - dev_err(tas2764->dev, - "wrong power level setting %d\n", level); - return -EINVAL; - } + ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, + TAS2764_PWR_CTRL_MASK, val); + if (ret < 0) + return ret; return 0; } @@ -107,12 +152,12 @@ static int tas2764_codec_resume(struct snd_soc_component *component) struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); int ret; - if (tas2764->sdz_gpio) + if (tas2764->sdz_gpio) { gpiod_set_value_cansleep(tas2764->sdz_gpio, 1); + usleep_range(1000, 2000); + } - ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_ACTIVE); + ret = tas2764_update_pwr_ctrl(tas2764); if (ret < 0) return ret; @@ -131,7 +176,8 @@ static const char * const tas2764_ASI1_src[] = { }; static SOC_ENUM_SINGLE_DECL( - tas2764_ASI1_src_enum, TAS2764_TDM_CFG2, 4, tas2764_ASI1_src); + tas2764_ASI1_src_enum, TAS2764_TDM_CFG2, TAS2764_TDM_CFG2_SCFG_SHIFT, + tas2764_ASI1_src); static const struct snd_kcontrol_new tas2764_asi1_mux = SOC_DAPM_ENUM("ASI1 Source", tas2764_ASI1_src_enum); @@ -145,14 +191,12 @@ static int tas2764_dac_event(struct snd_soc_dapm_widget *w, switch (event) { case SND_SOC_DAPM_POST_PMU: - ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_MUTE); + tas2764->dac_powered = true; + ret = tas2764_update_pwr_ctrl(tas2764); break; case SND_SOC_DAPM_PRE_PMD: - ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_SHUTDOWN); + tas2764->dac_powered = false; + ret = tas2764_update_pwr_ctrl(tas2764); break; default: dev_err(tas2764->dev, "Unsupported event\n"); @@ -197,17 +241,11 @@ static const struct snd_soc_dapm_route tas2764_audio_map[] = { static int tas2764_mute(struct snd_soc_dai *dai, int mute, int direction) { - struct snd_soc_component *component = dai->component; - int ret; - - ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - mute ? TAS2764_PWR_CTRL_MUTE : 0); - - if (ret < 0) - return ret; + struct tas2764_priv *tas2764 = + snd_soc_component_get_drvdata(dai->component); - return 0; + tas2764->unmuted = !mute; + return tas2764_update_pwr_ctrl(tas2764); } static int tas2764_set_bitwidth(struct tas2764_priv *tas2764, int bitwidth) @@ -329,20 +367,22 @@ static int tas2764_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) { struct snd_soc_component *component = dai->component; struct tas2764_priv *tas2764 = snd_soc_component_get_drvdata(component); - u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0; - int iface; + u8 tdm_rx_start_slot = 0, asi_cfg_0 = 0, asi_cfg_1 = 0; int ret; switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_IF: + asi_cfg_0 ^= TAS2764_TDM_CFG0_FRAME_START; + fallthrough; case SND_SOC_DAIFMT_NB_NF: asi_cfg_1 = TAS2764_TDM_CFG1_RX_RISING; break; + case SND_SOC_DAIFMT_IB_IF: + asi_cfg_0 ^= TAS2764_TDM_CFG0_FRAME_START; + fallthrough; case SND_SOC_DAIFMT_IB_NF: asi_cfg_1 = TAS2764_TDM_CFG1_RX_FALLING; break; - default: - dev_err(tas2764->dev, "ASI format Inverse is not found\n"); - return -EINVAL; } ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG1, @@ -353,13 +393,13 @@ static int tas2764_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { case SND_SOC_DAIFMT_I2S: + asi_cfg_0 ^= TAS2764_TDM_CFG0_FRAME_START; + fallthrough; case SND_SOC_DAIFMT_DSP_A: - iface = TAS2764_TDM_CFG2_SCFG_I2S; tdm_rx_start_slot = 1; break; case SND_SOC_DAIFMT_DSP_B: case SND_SOC_DAIFMT_LEFT_J: - iface = TAS2764_TDM_CFG2_SCFG_LEFT_J; tdm_rx_start_slot = 0; break; default: @@ -368,14 +408,15 @@ static int tas2764_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) return -EINVAL; } - ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG1, - TAS2764_TDM_CFG1_MASK, - (tdm_rx_start_slot << TAS2764_TDM_CFG1_51_SHIFT)); + ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG0, + TAS2764_TDM_CFG0_FRAME_START, + asi_cfg_0); if (ret < 0) return ret; - ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG2, - TAS2764_TDM_CFG2_SCFG_MASK, iface); + ret = snd_soc_component_update_bits(component, TAS2764_TDM_CFG1, + TAS2764_TDM_CFG1_MASK, + (tdm_rx_start_slot << TAS2764_TDM_CFG1_51_SHIFT)); if (ret < 0) return ret; @@ -397,20 +438,13 @@ static int tas2764_set_dai_tdm_slot(struct snd_soc_dai *dai, if (tx_mask == 0 || rx_mask != 0) return -EINVAL; - if (slots == 1) { - if (tx_mask != 1) - return -EINVAL; - left_slot = 0; - right_slot = 0; + left_slot = __ffs(tx_mask); + tx_mask &= ~(1 << left_slot); + if (tx_mask == 0) { + right_slot = left_slot; } else { - left_slot = __ffs(tx_mask); - tx_mask &= ~(1 << left_slot); - if (tx_mask == 0) { - right_slot = left_slot; - } else { - right_slot = __ffs(tx_mask); - tx_mask &= ~(1 << right_slot); - } + right_slot = __ffs(tx_mask); + tx_mask &= ~(1 << right_slot); } if (tx_mask != 0 || left_slot >= slots || right_slot >= slots) @@ -477,7 +511,7 @@ static struct snd_soc_dai_driver tas2764_dai_driver[] = { .id = 0, .playback = { .stream_name = "ASI1 Playback", - .channels_min = 2, + .channels_min = 1, .channels_max = 2, .rates = TAS2764_RATES, .formats = TAS2764_FORMATS, @@ -501,11 +535,41 @@ static int tas2764_codec_probe(struct snd_soc_component *component) tas2764->component = component; - if (tas2764->sdz_gpio) + if (tas2764->sdz_gpio) { gpiod_set_value_cansleep(tas2764->sdz_gpio, 1); + usleep_range(1000, 2000); + } tas2764_reset(tas2764); + if (tas2764->irq) { + ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK0, 0xff); + if (ret < 0) + return ret; + + ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK1, 0xff); + if (ret < 0) + return ret; + + ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK2, 0xff); + if (ret < 0) + return ret; + + ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK3, 0xff); + if (ret < 0) + return ret; + + ret = snd_soc_component_write(tas2764->component, TAS2764_INT_MASK4, 0xff); + if (ret < 0) + return ret; + + ret = devm_request_threaded_irq(tas2764->dev, tas2764->irq, NULL, tas2764_irq, + IRQF_ONESHOT | IRQF_SHARED | IRQF_TRIGGER_LOW, + "tas2764", tas2764); + if (ret) + dev_warn(tas2764->dev, "failed to request IRQ: %d\n", ret); + } + ret = snd_soc_component_update_bits(tas2764->component, TAS2764_TDM_CFG5, TAS2764_TDM_CFG5_VSNS_ENABLE, 0); if (ret < 0) @@ -516,30 +580,33 @@ static int tas2764_codec_probe(struct snd_soc_component *component) if (ret < 0) return ret; - ret = snd_soc_component_update_bits(component, TAS2764_PWR_CTRL, - TAS2764_PWR_CTRL_MASK, - TAS2764_PWR_CTRL_MUTE); - if (ret < 0) - return ret; - return 0; } static DECLARE_TLV_DB_SCALE(tas2764_digital_tlv, 1100, 50, 0); -static DECLARE_TLV_DB_SCALE(tas2764_playback_volume, -10000, 50, 0); +static DECLARE_TLV_DB_SCALE(tas2764_playback_volume, -10050, 50, 1); + +static const char * const tas2764_hpf_texts[] = { + "Disabled", "2 Hz", "50 Hz", "100 Hz", "200 Hz", + "400 Hz", "800 Hz" +}; + +static SOC_ENUM_SINGLE_DECL( + tas2764_hpf_enum, TAS2764_DC_BLK0, + TAS2764_DC_BLK0_HPF_FREQ_PB_SHIFT, tas2764_hpf_texts); static const struct snd_kcontrol_new tas2764_snd_controls[] = { SOC_SINGLE_TLV("Speaker Volume", TAS2764_DVC, 0, TAS2764_DVC_MAX, 1, tas2764_playback_volume), - SOC_SINGLE_TLV("Amp Gain Volume", TAS2764_CHNL_0, 0, 0x14, 0, + SOC_SINGLE_TLV("Amp Gain Volume", TAS2764_CHNL_0, 1, 0x14, 0, tas2764_digital_tlv), + SOC_ENUM("HPF Corner Frequency", tas2764_hpf_enum), }; static const struct snd_soc_component_driver soc_component_driver_tas2764 = { .probe = tas2764_codec_probe, .suspend = tas2764_codec_suspend, .resume = tas2764_codec_resume, - .set_bias_level = tas2764_set_bias_level, .controls = tas2764_snd_controls, .num_controls = ARRAY_SIZE(tas2764_snd_controls), .dapm_widgets = tas2764_dapm_widgets, @@ -548,7 +615,6 @@ static const struct snd_soc_component_driver soc_component_driver_tas2764 = { .num_dapm_routes = ARRAY_SIZE(tas2764_audio_map), .idle_bias_on = 1, .endianness = 1, - .non_legacy_dai_naming = 1, }; static const struct reg_default tas2764_reg_defaults[] = { @@ -556,7 +622,7 @@ static const struct reg_default tas2764_reg_defaults[] = { { TAS2764_SW_RST, 0x00 }, { TAS2764_PWR_CTRL, 0x1a }, { TAS2764_DVC, 0x00 }, - { TAS2764_CHNL_0, 0x00 }, + { TAS2764_CHNL_0, 0x28 }, { TAS2764_TDM_CFG0, 0x09 }, { TAS2764_TDM_CFG1, 0x02 }, { TAS2764_TDM_CFG2, 0x0a }, @@ -576,9 +642,21 @@ static const struct regmap_range_cfg tas2764_regmap_ranges[] = { }, }; +static bool tas2764_volatile_register(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TAS2764_INT_LTCH0 ... TAS2764_INT_LTCH4: + case TAS2764_INT_CLK_CFG: + return true; + default: + return false; + } +} + static const struct regmap_config tas2764_i2c_regmap = { .reg_bits = 8, .val_bits = 8, + .volatile_reg = tas2764_volatile_register, .reg_defaults = tas2764_reg_defaults, .num_reg_defaults = ARRAY_SIZE(tas2764_reg_defaults), .cache_type = REGCACHE_RBTREE, @@ -621,8 +699,7 @@ static int tas2764_parse_dt(struct device *dev, struct tas2764_priv *tas2764) return 0; } -static int tas2764_i2c_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int tas2764_i2c_probe(struct i2c_client *client) { struct tas2764_priv *tas2764; int result; @@ -633,6 +710,7 @@ static int tas2764_i2c_probe(struct i2c_client *client, return -ENOMEM; tas2764->dev = &client->dev; + tas2764->irq = client->irq; i2c_set_clientdata(client, tas2764); dev_set_drvdata(&client->dev, tas2764); @@ -678,7 +756,7 @@ static struct i2c_driver tas2764_i2c_driver = { .name = "tas2764", .of_match_table = of_match_ptr(tas2764_of_match), }, - .probe = tas2764_i2c_probe, + .probe_new = tas2764_i2c_probe, .id_table = tas2764_i2c_id, }; module_i2c_driver(tas2764_i2c_driver); |