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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 19:41:32 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 19:41:32 (GMT) |
commit | cb10ea549fdc0ab2dd8988adab5bf40b4fa642f3 (patch) | |
tree | 6bc11e0af9f0639a5eedd055401086c8c771f21e /sound/aoa/codecs/tas-basstreble.h | |
parent | 81d6e59dabb1ae0c782e9eb7e3d88f699d25b314 (diff) | |
parent | 5ce442fe2c9423ec5451222aee6f9b2127bb8311 (diff) | |
download | linux-fsl-qoriq-cb10ea549fdc0ab2dd8988adab5bf40b4fa642f3.tar.xz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (367 commits)
ALSA: ASoC: fix a typo in omp-pcm.c
ASoC: Fix DSP formats in SSM2602 audio codec
ASoC: Fix incorrect DSP format in OMAP McBSP DAI and affected drivers
ALSA: hda: fix incorrect mixer index values for 92hd83xx
ALSA: hda: dinput_mux check
ALSA: hda - Add quirk for another HP dv7
ALSA: ASoC - Add missing __devexit annotation to wm8350.c
ALSA: ASoc: DaVinci: davinci-evm use dsp_b mode
ALSA: ASoC: DaVinci: i2s, evm, pass same value to codec and cpu_dai
ALSA: ASoC: tlv320aic3x add dsp_a
ALSA: ASoC: DaVinci: document I2S limitations
ALSA: ASoC: DaVinci: davinci-i2s clean up
ALSA: ASoC: DaVinci: davinci-i2s clean up
ALSA: ASoC: DaVinci: davinci-i2s add comments to explain polarity
ALSA: ASoC: DaVinci: davinvi-evm, make requests explicit
ALSA: ca0106 - disable 44.1kHz capture
ALSA: ca0106 - Add missing card->private_data initialization
ALSA: ca0106 - Check ac97 availability at PM
ALSA: hda - Power up always when no jack detection is available
ALSA: hda - Fix unused variable warnings in patch_sigmatel.c
...
Diffstat (limited to 'sound/aoa/codecs/tas-basstreble.h')
-rw-r--r-- | sound/aoa/codecs/tas-basstreble.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/sound/aoa/codecs/tas-basstreble.h b/sound/aoa/codecs/tas-basstreble.h new file mode 100644 index 0000000..69b6113 --- /dev/null +++ b/sound/aoa/codecs/tas-basstreble.h @@ -0,0 +1,134 @@ +/* + * This file is only included exactly once! + * + * The tables here are derived from the tas3004 datasheet, + * modulo typo corrections and some smoothing... + */ + +#define TAS3004_TREBLE_MIN 0 +#define TAS3004_TREBLE_MAX 72 +#define TAS3004_BASS_MIN 0 +#define TAS3004_BASS_MAX 72 +#define TAS3004_TREBLE_ZERO 36 +#define TAS3004_BASS_ZERO 36 + +static u8 tas3004_treble_table[] = { + 150, /* -18 dB */ + 149, + 148, + 147, + 146, + 145, + 144, + 143, + 142, + 141, + 140, + 139, + 138, + 137, + 136, + 135, + 134, + 133, + 132, + 131, + 130, + 129, + 128, + 127, + 126, + 125, + 124, + 123, + 122, + 121, + 120, + 119, + 118, + 117, + 116, + 115, + 114, /* 0 dB */ + 113, + 112, + 111, + 109, + 108, + 107, + 105, + 104, + 103, + 101, + 99, + 98, + 96, + 93, + 91, + 89, + 86, + 83, + 81, + 77, + 74, + 71, + 67, + 63, + 59, + 54, + 49, + 44, + 38, + 32, + 26, + 19, + 10, + 4, + 2, + 1, /* +18 dB */ +}; + +static inline u8 tas3004_treble(int idx) +{ + return tas3004_treble_table[idx]; +} + +/* I only save the difference here to the treble table + * so that the binary is smaller... + * I have also ignored completely differences of + * +/- 1 + */ +static s8 tas3004_bass_diff_to_treble[] = { + 2, /* 7 dB, offset 50 */ + 2, + 2, + 2, + 2, + 1, + 2, + 2, + 2, + 3, + 4, + 4, + 5, + 6, + 7, + 8, + 9, + 10, + 11, + 14, + 13, + 8, + 1, /* 18 dB */ +}; + +static inline u8 tas3004_bass(int idx) +{ + u8 result = tas3004_treble_table[idx]; + + if (idx >= 50) + result += tas3004_bass_diff_to_treble[idx-50]; + return result; +} |