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| author | Oswald Buddenhagen <oswald.buddenhagen@gmx.de> | 2023-04-22 15:24:30 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-04-22 17:34:28 +0200 |
| commit | 6fb861bb3caf2ca8e440f7a3fdcca35fcac917b4 (patch) | |
| tree | d0db2ca26573fa8df57f84f6230b49d98b15ced6 /include/sound/emu10k1.h | |
| parent | ALSA: emu10k1: remove unused emu->pcm_playback_efx_substream field (diff) | |
| download | linux-6fb861bb3caf2ca8e440f7a3fdcca35fcac917b4.tar.xz linux-6fb861bb3caf2ca8e440f7a3fdcca35fcac917b4.zip | |
ALSA: emu10k1: fix snd_emu1010_fpga_read() input masking for rev2 cards
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>
Diffstat (limited to 'include/sound/emu10k1.h')
| -rw-r--r-- | include/sound/emu10k1.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h index f21441cda6b9..790dedd42340 100644 --- a/include/sound/emu10k1.h +++ b/include/sound/emu10k1.h @@ -252,7 +252,8 @@ #define MUSTAT_ORDYN 0x40 /* 0 = MUDATA can accept a command or data */ #define A_GPIO 0x18 /* GPIO on Audigy card (16bits) */ -#define A_GPINPUT_MASK 0xff00 +#define A_GPINPUT_MASK 0xff00 /* Alice/2 has 8 input pins */ +#define A3_GPINPUT_MASK 0x3f00 /* ... while Tina/2 has only 6 */ #define A_GPOUTPUT_MASK 0x00ff // The GPIO port is used for I/O config on Sound Blasters; |