ALSA: emu10k1: fix snd_emu1010_fpga_read() input masking for rev2 cards

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Unlike the Alice2 chips used on 1st generation E-MU cards, the
Tina/Tina2 chips used on the 2nd gen cards have only six GPIN pins,
which means that we need to use a smaller mask. Failure to do so would
falsify the read data if the FPGA tried to raise an IRQ right at that
moment. This wasn't a problem so far, as we didn't actually enable FPGA
IRQs, but that's going to change soon.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230422132430.1057490-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Oswald Buddenhagen 2023-04-22 15:24:30 +02:00 • committed by Takashi Iwai

parent 8b2dd46d9a

commit 6fb861bb3c

2 changed files with 6 additions and 2 deletions

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include/sound/emu10k1.h

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