diff options
Diffstat (limited to 'kernel/sound/soc/codecs/sgtl5000.c')
| -rw-r--r-- | kernel/sound/soc/codecs/sgtl5000.c | 71 |
1 files changed, 54 insertions, 17 deletions
diff --git a/kernel/sound/soc/codecs/sgtl5000.c b/kernel/sound/soc/codecs/sgtl5000.c index 3593a1496..08b404606 100644 --- a/kernel/sound/soc/codecs/sgtl5000.c +++ b/kernel/sound/soc/codecs/sgtl5000.c @@ -189,6 +189,7 @@ static int power_vag_event(struct snd_soc_dapm_widget *w, case SND_SOC_DAPM_POST_PMU: snd_soc_update_bits(codec, SGTL5000_CHIP_ANA_POWER, SGTL5000_VAG_POWERUP, SGTL5000_VAG_POWERUP); + msleep(400); break; case SND_SOC_DAPM_PRE_PMD: @@ -406,11 +407,10 @@ static int dac_put_volsw(struct snd_kcontrol *kcontrol, static const DECLARE_TLV_DB_SCALE(capture_6db_attenuate, -600, 600, 0); /* tlv for mic gain, 0db 20db 30db 40db */ -static const unsigned int mic_gain_tlv[] = { - TLV_DB_RANGE_HEAD(2), +static const DECLARE_TLV_DB_RANGE(mic_gain_tlv, 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0), - 1, 3, TLV_DB_SCALE_ITEM(2000, 1000, 0), -}; + 1, 3, TLV_DB_SCALE_ITEM(2000, 1000, 0) +); /* tlv for hp volume, -51.5db to 12.0db, step .5db */ static const DECLARE_TLV_DB_SCALE(headphone_volume, -5150, 50, 0); @@ -948,7 +948,7 @@ static int sgtl5000_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: - if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { + if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) { ret = regulator_bulk_enable( ARRAY_SIZE(sgtl5000->supplies), sgtl5000->supplies); @@ -979,7 +979,6 @@ static int sgtl5000_set_bias_level(struct snd_soc_codec *codec, break; } - codec->dapm.bias_level = level; return 0; } @@ -1092,6 +1091,19 @@ static bool sgtl5000_readable(struct device *dev, unsigned int reg) } /* + * This precalculated table contains all (vag_val * 100 / lo_calcntrl) results + * to select an appropriate lo_vol_* in SGTL5000_CHIP_LINE_OUT_VOL + * The calculatation was done for all possible register values which + * is the array index and the following formula: 10^((idx−15)/40) * 100 + */ +static const u8 vol_quot_table[] = { + 42, 45, 47, 50, 53, 56, 60, 63, + 67, 71, 75, 79, 84, 89, 94, 100, + 106, 112, 119, 126, 133, 141, 150, 158, + 168, 178, 188, 200, 211, 224, 237, 251 +}; + +/* * sgtl5000 has 3 internal power supplies: * 1. VAG, normally set to vdda/2 * 2. charge pump, set to different value @@ -1111,6 +1123,10 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec) u16 ana_pwr; u16 lreg_ctrl; int vag; + int lo_vag; + int vol_quot; + int lo_vol; + size_t i; struct sgtl5000_priv *sgtl5000 = snd_soc_codec_get_drvdata(codec); vdda = regulator_get_voltage(sgtl5000->supplies[VDDA].consumer); @@ -1198,23 +1214,45 @@ static int sgtl5000_set_power_regs(struct snd_soc_codec *codec) SGTL5000_ANA_GND_MASK, vag << SGTL5000_ANA_GND_SHIFT); /* set line out VAG to vddio / 2, in range (0.8v, 1.675v) */ - vag = vddio / 2; - if (vag <= SGTL5000_LINE_OUT_GND_BASE) - vag = 0; - else if (vag >= SGTL5000_LINE_OUT_GND_BASE + + lo_vag = vddio / 2; + if (lo_vag <= SGTL5000_LINE_OUT_GND_BASE) + lo_vag = 0; + else if (lo_vag >= SGTL5000_LINE_OUT_GND_BASE + SGTL5000_LINE_OUT_GND_STP * SGTL5000_LINE_OUT_GND_MAX) - vag = SGTL5000_LINE_OUT_GND_MAX; + lo_vag = SGTL5000_LINE_OUT_GND_MAX; else - vag = (vag - SGTL5000_LINE_OUT_GND_BASE) / + lo_vag = (lo_vag - SGTL5000_LINE_OUT_GND_BASE) / SGTL5000_LINE_OUT_GND_STP; snd_soc_update_bits(codec, SGTL5000_CHIP_LINE_OUT_CTRL, SGTL5000_LINE_OUT_CURRENT_MASK | SGTL5000_LINE_OUT_GND_MASK, - vag << SGTL5000_LINE_OUT_GND_SHIFT | + lo_vag << SGTL5000_LINE_OUT_GND_SHIFT | SGTL5000_LINE_OUT_CURRENT_360u << SGTL5000_LINE_OUT_CURRENT_SHIFT); + /* + * Set lineout output level in range (0..31) + * the same value is used for right and left channel + * + * Searching for a suitable index solving this formula: + * idx = 40 * log10(vag_val / lo_cagcntrl) + 15 + */ + vol_quot = (vag * 100) / lo_vag; + lo_vol = 0; + for (i = 0; i < ARRAY_SIZE(vol_quot_table); i++) { + if (vol_quot >= vol_quot_table[i]) + lo_vol = i; + else + break; + } + + snd_soc_update_bits(codec, SGTL5000_CHIP_LINE_OUT_VOL, + SGTL5000_LINE_OUT_VOL_RIGHT_MASK | + SGTL5000_LINE_OUT_VOL_LEFT_MASK, + lo_vol << SGTL5000_LINE_OUT_VOL_RIGHT_SHIFT | + lo_vol << SGTL5000_LINE_OUT_VOL_LEFT_SHIFT); + return 0; } @@ -1339,8 +1377,8 @@ static int sgtl5000_probe(struct snd_soc_codec *codec) sgtl5000->micbias_resistor << SGTL5000_BIAS_R_SHIFT); snd_soc_update_bits(codec, SGTL5000_CHIP_MIC_CTRL, - SGTL5000_BIAS_R_MASK, - sgtl5000->micbias_voltage << SGTL5000_BIAS_R_SHIFT); + SGTL5000_BIAS_VOLT_MASK, + sgtl5000->micbias_voltage << SGTL5000_BIAS_VOLT_SHIFT); /* * disable DAP * TODO: @@ -1512,7 +1550,7 @@ static int sgtl5000_i2c_probe(struct i2c_client *client, else { sgtl5000->micbias_voltage = 0; dev_err(&client->dev, - "Unsuitable MicBias resistor\n"); + "Unsuitable MicBias voltage\n"); } } else { sgtl5000->micbias_voltage = 0; @@ -1563,7 +1601,6 @@ MODULE_DEVICE_TABLE(of, sgtl5000_dt_ids); static struct i2c_driver sgtl5000_i2c_driver = { .driver = { .name = "sgtl5000", - .owner = THIS_MODULE, .of_match_table = sgtl5000_dt_ids, }, .probe = sgtl5000_i2c_probe, |