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ALSA: emu10k1: use high-level I/O in set_filterQ()

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This makes the code shorter and more legible.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230423181002.1246793-2-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Oswald Buddenhagen 2023-04-23 20:10:02 +02:00 committed by Takashi Iwai
parent 8d60d5cabe
commit 7002cbd625
2 changed files with 3 additions and 5 deletions
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3
include/sound/emu10k1.h
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@ -429,7 +429,8 @@
#define DSL_LOOPENDADDR 0x18000007
#define CCCA 0x08 /* Filter Q, interp. ROM, byte size, cur. addr register */
#define CCCA_RESONANCE 0xf0000000 /* Lowpass filter resonance (Q) height */
#define CCCA_RESONANCE_MASK 0xf0000000 /* Lowpass filter resonance (Q) height */
#define CCCA_RESONANCE 0x041c0008
#define CCCA_INTERPROM_MASK 0x0e000000 /* Selects passband of interpolation ROM */
/* 1 == full band, 7 == lowpass */
/* ROM 0 is used when pitch shifting downward or less */

5
sound/pci/emu10k1/emu10k1_callback.c
View File

@ -531,8 +531,5 @@ set_fm2frq2(struct snd_emu10k1 *hw, struct snd_emux_voice *vp)
static void
set_filterQ(struct snd_emu10k1 *hw, struct snd_emux_voice *vp)
{
unsigned int val;
val = snd_emu10k1_ptr_read(hw, CCCA, vp->ch) & ~CCCA_RESONANCE;
val |= (vp->reg.parm.filterQ << 28);
snd_emu10k1_ptr_write(hw, CCCA, vp->ch, val);
snd_emu10k1_ptr_write(hw, CCCA_RESONANCE, vp->ch, vp->reg.parm.filterQ);
}