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authorOswald Buddenhagen2023-05-17 19:42:54 +0200
committerTakashi Iwai2023-05-18 07:30:34 +0200
commit9e72666b9ee1140b7ecc66abc30b1c694ed7a6a0 (patch)
treeecc0e55ec587f2608abce31bd969532f77bd42ce /sound/pci
parent5b1cd21f0f05757e724e18a599b391689f8565fc (diff)
ALSA: emu10k1: improve API of low-level voice manipulation functions
Originally, there was a 1:1 relationship between the PCM streams' and the low-level voices' parameters. The addition of multi-channel playback partially invalidated that, but didn't introduce proper layering, so things kept working only by virtue of the multi-channel device never having two channels (yet). The upcoming addition of 32-bit playback would complete upending the relationships. So this patch detaches the low-level parameters from the high-level ones: we pass pre-calculated bit width and stereo flags to the low-level manipulation functions instead of calculating them in-place from the stream parameters. Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Link: https://lore.kernel.org/r/20230517174256.3657060-7-oswald.buddenhagen@gmx.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/emu10k1/emupcm.c50
1 files changed, 22 insertions, 28 deletions
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c
index feb575922738..bbe054be2448 100644
--- a/sound/pci/emu10k1/emupcm.c
+++ b/sound/pci/emu10k1/emupcm.c
@@ -239,6 +239,7 @@ static unsigned int emu10k1_select_interprom(unsigned int pitch_target)
static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu,
int master, int extra,
struct snd_emu10k1_voice *evoice,
+ bool w_16, bool stereo,
unsigned int start_addr,
unsigned int end_addr,
struct snd_emu10k1_pcm_mixer *mix)
@@ -246,15 +247,13 @@ static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu,
struct snd_pcm_substream *substream = evoice->epcm->substream;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int silent_page, tmp;
- int voice, stereo, w_16;
+ int voice;
unsigned char send_amount[8];
unsigned char send_routing[8];
unsigned long flags;
unsigned int pitch_target;
voice = evoice->number;
- stereo = runtime->channels == 2;
- w_16 = snd_pcm_format_width(runtime->format) == 16;
spin_lock_irqsave(&emu->reg_lock, flags);
@@ -273,7 +272,7 @@ static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu,
if (master) {
evoice->epcm->ccca_start_addr = start_addr + 64 - 3;
}
- if (stereo && !extra) {
+ if (stereo) {
// Not really necessary for the slave, but it doesn't hurt
snd_emu10k1_ptr_write(emu, CPF, voice, CPF_STEREO_MASK);
} else {
@@ -399,15 +398,15 @@ static int snd_emu10k1_playback_prepare(struct snd_pcm_substream *substream)
start_addr = epcm->start_addr >> w_16;
end_addr = start_addr + runtime->period_size;
- snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
+ snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra, w_16, false,
start_addr, end_addr, NULL);
start_addr >>= stereo;
end_addr = start_addr + runtime->buffer_size;
- snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
+ snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0], w_16, stereo,
start_addr, end_addr,
&emu->pcm_mixer[substream->number]);
if (epcm->voices[1])
- snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[1],
+ snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[1], w_16, true,
start_addr, end_addr,
&emu->pcm_mixer[substream->number]);
return 0;
@@ -426,17 +425,17 @@ static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream)
channel_size = runtime->buffer_size;
- snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra,
+ snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra, true, false,
start_addr, start_addr + (channel_size / 2), NULL);
/* only difference with the master voice is we use it for the pointer */
- snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0],
+ snd_emu10k1_pcm_init_voice(emu, 1, 0, epcm->voices[0], true, false,
start_addr, start_addr + channel_size,
&emu->efx_pcm_mixer[0]);
start_addr += channel_size;
for (i = 1; i < NUM_EFX_PLAYBACK; i++) {
- snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[i],
+ snd_emu10k1_pcm_init_voice(emu, 0, 0, epcm->voices[i], true, false,
start_addr, start_addr + channel_size,
&emu->efx_pcm_mixer[i]);
start_addr += channel_size;
@@ -513,16 +512,14 @@ static int snd_emu10k1_capture_prepare(struct snd_pcm_substream *substream)
}
static void snd_emu10k1_playback_invalidate_cache(struct snd_emu10k1 *emu,
- struct snd_emu10k1_voice *evoice)
+ struct snd_emu10k1_voice *evoice,
+ bool w_16, bool stereo)
{
- struct snd_pcm_runtime *runtime;
- unsigned voice, stereo, sample;
+ unsigned voice, sample;
u32 ccr;
- runtime = evoice->epcm->substream->runtime;
voice = evoice->number;
- stereo = (runtime->channels == 2);
- sample = snd_pcm_format_width(runtime->format) == 16 ? 0 : 0x80808080;
+ sample = w_16 ? 0 : 0x80808080;
// We assume that the cache is resting at this point (i.e.,
// CCR_CACHEINVALIDSIZE is very small).
@@ -552,20 +549,15 @@ static void snd_emu10k1_playback_commit_volume(struct snd_emu10k1 *emu,
static void snd_emu10k1_playback_unmute_voice(struct snd_emu10k1 *emu,
struct snd_emu10k1_voice *evoice,
- bool master,
+ bool stereo, bool master,
struct snd_emu10k1_pcm_mixer *mix)
{
- struct snd_pcm_substream *substream;
- struct snd_pcm_runtime *runtime;
unsigned int vattn;
unsigned int tmp;
if (evoice == NULL) /* skip second voice for mono */
return;
- substream = evoice->epcm->substream;
- runtime = substream->runtime;
-
- tmp = runtime->channels == 2 ? (master ? 1 : 2) : 0;
+ tmp = stereo ? (master ? 1 : 2) : 0;
vattn = mix->attn[tmp] << 16;
snd_emu10k1_playback_commit_volume(emu, evoice, vattn);
}
@@ -628,6 +620,8 @@ static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream,
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_emu10k1_pcm *epcm = runtime->private_data;
struct snd_emu10k1_pcm_mixer *mix;
+ bool w_16 = snd_pcm_format_width(runtime->format) == 16;
+ bool stereo = runtime->channels == 2;
int result = 0;
/*
@@ -638,13 +632,13 @@ static int snd_emu10k1_playback_trigger(struct snd_pcm_substream *substream,
spin_lock(&emu->reg_lock);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
- snd_emu10k1_playback_invalidate_cache(emu, epcm->voices[0]);
+ snd_emu10k1_playback_invalidate_cache(emu, epcm->voices[0], w_16, stereo);
fallthrough;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
mix = &emu->pcm_mixer[substream->number];
- snd_emu10k1_playback_unmute_voice(emu, epcm->voices[0], true, mix);
- snd_emu10k1_playback_unmute_voice(emu, epcm->voices[1], false, mix);
+ snd_emu10k1_playback_unmute_voice(emu, epcm->voices[0], stereo, true, mix);
+ snd_emu10k1_playback_unmute_voice(emu, epcm->voices[1], stereo, false, mix);
snd_emu10k1_playback_set_running(emu, epcm);
snd_emu10k1_playback_trigger_voice(emu, epcm->voices[0]);
snd_emu10k1_playback_trigger_voice(emu, epcm->extra);
@@ -782,13 +776,13 @@ static int snd_emu10k1_efx_playback_trigger(struct snd_pcm_substream *substream,
case SNDRV_PCM_TRIGGER_START:
/* prepare voices */
for (i = 0; i < NUM_EFX_PLAYBACK; i++) {
- snd_emu10k1_playback_invalidate_cache(emu, epcm->voices[i]);
+ snd_emu10k1_playback_invalidate_cache(emu, epcm->voices[i], true, false);
}
fallthrough;
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
case SNDRV_PCM_TRIGGER_RESUME:
for (i = 0; i < NUM_EFX_PLAYBACK; i++)
- snd_emu10k1_playback_unmute_voice(emu, epcm->voices[i], false,
+ snd_emu10k1_playback_unmute_voice(emu, epcm->voices[i], false, true,
&emu->efx_pcm_mixer[i]);
snd_emu10k1_playback_set_running(emu, epcm);