diff options
Diffstat (limited to 'sound')
-rw-r--r-- | sound/pci/emu10k1/emupcm.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c index 0b23ff8d9c3b..903a68a4d396 100644 --- a/sound/pci/emu10k1/emupcm.c +++ b/sound/pci/emu10k1/emupcm.c @@ -236,6 +236,18 @@ static unsigned int emu10k1_select_interprom(unsigned int pitch_target) return CCCA_INTERPROM_2; } +static u16 emu10k1_send_target_from_amount(u8 amount) +{ + static const u8 shifts[8] = { 4, 4, 5, 6, 7, 8, 9, 10 }; + static const u16 offsets[8] = { 0, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000, 0x8000 }; + u8 exp; + + if (amount == 0xff) + return 0xffff; + exp = amount >> 5; + return ((amount & 0x1f) << shifts[exp]) + offsets[exp]; +} + static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu, int master, int extra, struct snd_emu10k1_voice *evoice, @@ -301,6 +313,11 @@ static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu, A_FXRT2, snd_emu10k1_compose_audigy_fxrt2(send_routing), A_SENDAMOUNTS, snd_emu10k1_compose_audigy_sendamounts(send_amount), REGLIST_END); + for (int i = 0; i < 4; i++) { + u32 aml = emu10k1_send_target_from_amount(send_amount[2 * i]); + u32 amh = emu10k1_send_target_from_amount(send_amount[2 * i + 1]); + snd_emu10k1_ptr_write(emu, A_CSBA + i, voice, (amh << 16) | aml); + } } else { snd_emu10k1_ptr_write(emu, FXRT, voice, snd_emu10k1_compose_send_routing(send_routing)); |