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ALSA: emu10k1: clarify various fx8010.*_mask fields 

extin_mask and extout_mask are used only by the SbLive! microcode, so
they have no effect on Audigy.

Eliminate fxbus_mask entirely, as it wasn't actually used for anything.

As a drive-by, remove the pointless pad1 field from struct
snd_emu10k1_fx8010 - it is not visible to user space, so it has no
binary compatibility constraints.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230421141006.1005509-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Oswald Buddenhagen 2023-04-21 16:10:06 +02:00 committed by Takashi Iwai
parent 2db2be5607
commit e81995a81e
3 changed files with 10 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/sound/emu10k1.h
View File

@ -1599,10 +1599,8 @@ struct snd_emu10k1_fx8010_pcm {
};
struct snd_emu10k1_fx8010 {
unsigned short fxbus_mask; /* used FX buses (bitmask) */
unsigned short extin_mask; /* used external inputs (bitmask) */
unsigned short extout_mask; /* used external outputs (bitmask) */
unsigned short pad1;
unsigned short extin_mask; /* used external inputs (bitmask); not used for Audigy */
unsigned short extout_mask; /* used external outputs (bitmask); not used for Audigy */
unsigned int itram_size; /* internal TRAM size in samples */
struct snd_dma_buffer etram_pages; /* external TRAM pages and size */
unsigned int dbg; /* FX debugger register */

7
sound/pci/emu10k1/emu10k1_main.c
View File

@ -1901,11 +1901,12 @@ int snd_emu10k1_create(struct snd_card *card,
pci_set_master(pci);
emu->fx8010.fxbus_mask = 0x303f;
// The masks are not used for Audigy.
// FIXME: these should come from the card_capabilites table.
if (extin_mask == 0)
extin_mask = 0x3fcf;
extin_mask = 0x3fcf; // EXTIN_*
if (extout_mask == 0)
extout_mask = 0x7fff;
extout_mask = 0x7fff; // EXTOUT_*
emu->fx8010.extin_mask = extin_mask;
emu->fx8010.extout_mask = extout_mask;
emu->enable_ir = enable_ir;

9
sound/pci/emu10k1/emufx.c
View File

@ -2523,7 +2523,7 @@ static void snd_emu10k1_fx8010_info(struct snd_emu10k1 *emu,
struct snd_emu10k1_fx8010_info *info)
{
const char * const *fxbus, * const *extin, * const *extout;
unsigned short fxbus_mask, extin_mask, extout_mask;
unsigned short extin_mask, extout_mask;
int res;
info->internal_tram_size = emu->fx8010.itram_size;
@ -2531,11 +2531,10 @@ static void snd_emu10k1_fx8010_info(struct snd_emu10k1 *emu,
fxbus = fxbuses;
extin = emu->audigy ? audigy_ins : creative_ins;
extout = emu->audigy ? audigy_outs : creative_outs;
fxbus_mask = emu->fx8010.fxbus_mask;
extin_mask = emu->fx8010.extin_mask;
extout_mask = emu->fx8010.extout_mask;
extin_mask = emu->audigy ? ~0 : emu->fx8010.extin_mask;
extout_mask = emu->audigy ? ~0 : emu->fx8010.extout_mask;
for (res = 0; res < 16; res++, fxbus++, extin++, extout++) {
copy_string(info->fxbus_names[res], fxbus_mask & (1 << res) ? *fxbus : NULL, "FXBUS", res);
copy_string(info->fxbus_names[res], *fxbus, "FXBUS", res);
copy_string(info->extin_names[res], extin_mask & (1 << res) ? *extin : NULL, "Unused", res);
copy_string(info->extout_names[res], extout_mask & (1 << res) ? *extout : NULL, "Unused", res);
}