[PATCH AUTOSEL 5.4 02/12] ALSA: emu10k1: roll up loops in DSP setup code for Audigy
From: Sasha Levin
Date: Sun Jul 23 2023 - 21:29:35 EST
From: Oswald Buddenhagen <oswald.buddenhagen@xxxxxx>
[ Upstream commit 8cabf83c7aa54530e699be56249fb44f9505c4f3 ]
There is no apparent reason for the massive code duplication.
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@xxxxxx>
Link: https://lore.kernel.org/r/20230510173917.3073107-3-oswald.buddenhagen@xxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/pci/emu10k1/emufx.c | 112 +++-----------------------------------
1 file changed, 9 insertions(+), 103 deletions(-)
diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index e053f0d58bdd0..2f3cfcfcdb9a3 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -1536,14 +1536,8 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
gpr += 2;
/* Master volume (will be renamed later) */
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+0+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+0+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+1+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+1+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+2+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+2+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+3+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+3+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+4+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+4+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+5+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+5+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+6+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+6+SND_EMU10K1_PLAYBACK_CHANNELS));
- A_OP(icode, &ptr, iMAC0, A_GPR(playback+7+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+7+SND_EMU10K1_PLAYBACK_CHANNELS));
+ for (z = 0; z < 8; z++)
+ A_OP(icode, &ptr, iMAC0, A_GPR(playback+z+SND_EMU10K1_PLAYBACK_CHANNELS), A_C_00000000, A_GPR(gpr), A_GPR(playback+z+SND_EMU10K1_PLAYBACK_CHANNELS));
snd_emu10k1_init_mono_control(&controls[nctl++], "Wave Master Playback Volume", gpr, 0);
gpr += 2;
@@ -1627,102 +1621,14 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
dev_dbg(emu->card->dev, "emufx.c: gpr=0x%x, tmp=0x%x\n",
gpr, tmp);
*/
- /* For the EMU1010: How to get 32bit values from the DSP. High 16bits into L, low 16bits into R. */
- /* A_P16VIN(0) is delayed by one sample,
- * so all other A_P16VIN channels will need to also be delayed
- */
- /* Left ADC in. 1 of 2 */
snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_P16VIN(0x0), A_FXBUS2(0) );
- /* Right ADC in 1 of 2 */
- gpr_map[gpr++] = 0x00000000;
- /* Delaying by one sample: instead of copying the input
- * value A_P16VIN to output A_FXBUS2 as in the first channel,
- * we use an auxiliary register, delaying the value by one
- * sample
- */
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(2) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x1), A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(4) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x2), A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(6) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x3), A_C_00000000, A_C_00000000);
- /* For 96kHz mode */
- /* Left ADC in. 2 of 2 */
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0x8) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x4), A_C_00000000, A_C_00000000);
- /* Right ADC in 2 of 2 */
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0xa) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x5), A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0xc) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x6), A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr - 1), A_FXBUS2(0xe) );
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x7), A_C_00000000, A_C_00000000);
- /* Pavel Hofman - we still have voices, A_FXBUS2s, and
- * A_P16VINs available -
- * let's add 8 more capture channels - total of 16
- */
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x10));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x8),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x12));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0x9),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x14));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xa),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x16));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xb),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x18));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xc),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x1a));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xd),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x1c));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xe),
- A_C_00000000, A_C_00000000);
- gpr_map[gpr++] = 0x00000000;
- snd_emu10k1_audigy_dsp_convert_32_to_2x16(icode, &ptr, tmp,
- bit_shifter16,
- A_GPR(gpr - 1),
- A_FXBUS2(0x1e));
- A_OP(icode, &ptr, iACC3, A_GPR(gpr - 1), A_P16VIN(0xf),
- A_C_00000000, A_C_00000000);
+ /* A_P16VIN(0) is delayed by one sample, so all other A_P16VIN channels
+ * will need to also be delayed; we use an auxiliary register for that. */
+ for (z = 1; z < 0x10; z++) {
+ snd_emu10k1_audigy_dsp_convert_32_to_2x16( icode, &ptr, tmp, bit_shifter16, A_GPR(gpr), A_FXBUS2(z * 2) );
+ A_OP(icode, &ptr, iACC3, A_GPR(gpr), A_P16VIN(z), A_C_00000000, A_C_00000000);
+ gpr_map[gpr++] = 0x00000000;
+ }
}
#if 0
--
2.39.2