diff options
Diffstat (limited to 'sound/pci/emu10k1/emufx.c')
| -rw-r--r-- | sound/pci/emu10k1/emufx.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c index dfba00230d4d..13cd6ce89811 100644 --- a/sound/pci/emu10k1/emufx.c +++ b/sound/pci/emu10k1/emufx.c @@ -35,6 +35,7 @@ #include <linux/mutex.h> #include <sound/core.h> +#include <sound/tlv.h> #include <sound/emu10k1.h> #if 0 /* for testing purposes - digital out -> capture */ @@ -266,6 +267,7 @@ static const u32 treble_table[41][5] = { { 0x37c4448b, 0xa45ef51d, 0x262f3267, 0x081e36dc, 0xfd8f5d14 } }; +/* dB gain = (float) 20 * log10( float(db_table_value) / 0x8000000 ) */ static const u32 db_table[101] = { 0x00000000, 0x01571f82, 0x01674b41, 0x01783a1b, 0x0189f540, 0x019c8651, 0x01aff763, 0x01c45306, 0x01d9a446, 0x01eff6b8, @@ -290,6 +292,9 @@ static const u32 db_table[101] = { 0x7fffffff, }; +/* EMU10k1/EMU10k2 DSP control db gain */ +static DECLARE_TLV_DB_SCALE(snd_emu10k1_db_scale1, -4000, 40, 1); + static const u32 onoff_table[2] = { 0x00000000, 0x00000001 }; @@ -755,6 +760,11 @@ static int snd_emu10k1_add_controls(struct snd_emu10k1 *emu, knew.device = gctl->id.device; knew.subdevice = gctl->id.subdevice; knew.info = snd_emu10k1_gpr_ctl_info; + if (gctl->tlv.p) { + knew.tlv.p = gctl->tlv.p; + knew.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ; + } knew.get = snd_emu10k1_gpr_ctl_get; knew.put = snd_emu10k1_gpr_ctl_put; memset(nctl, 0, sizeof(*nctl)); @@ -1013,6 +1023,7 @@ snd_emu10k1_init_mono_control(struct snd_emu10k1_fx8010_control_gpr *ctl, ctl->gpr[0] = gpr + 0; ctl->value[0] = defval; ctl->min = 0; ctl->max = 100; + ctl->tlv.p = snd_emu10k1_db_scale1; ctl->translation = EMU10K1_GPR_TRANSLATION_TABLE100; } @@ -1027,6 +1038,7 @@ snd_emu10k1_init_stereo_control(struct snd_emu10k1_fx8010_control_gpr *ctl, ctl->gpr[1] = gpr + 1; ctl->value[1] = defval; ctl->min = 0; ctl->max = 100; + ctl->tlv.p = snd_emu10k1_db_scale1; ctl->translation = EMU10K1_GPR_TRANSLATION_TABLE100; } |