diff options
Diffstat (limited to 'sound/pci/emu10k1/emupcm.c')
| -rw-r--r-- | sound/pci/emu10k1/emupcm.c | 80 |
1 files changed, 13 insertions, 67 deletions
diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c index 6ec394fb1846..b0c0ef342756 100644 --- a/sound/pci/emu10k1/emupcm.c +++ b/sound/pci/emu10k1/emupcm.c @@ -76,23 +76,6 @@ static void snd_emu10k1_pcm_efx_interrupt(struct snd_emu10k1 *emu, snd_pcm_period_elapsed(emu->pcm_capture_efx_substream); } -static snd_pcm_uframes_t snd_emu10k1_efx_playback_pointer(struct snd_pcm_substream *substream) -{ - struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_emu10k1_pcm *epcm = runtime->private_data; - unsigned int ptr; - - if (!epcm->running) - return 0; - ptr = snd_emu10k1_ptr_read(emu, CCCA, epcm->voices[0]->number) & 0x00ffffff; - ptr += runtime->buffer_size; - ptr -= epcm->ccca_start_addr; - ptr %= runtime->buffer_size; - - return ptr; -} - static int snd_emu10k1_pcm_channel_alloc(struct snd_emu10k1_pcm * epcm, int voices) { int err, i; @@ -343,7 +326,6 @@ static void snd_emu10k1_pcm_init_voice(struct snd_emu10k1 *emu, } else snd_emu10k1_ptr_write(emu, FXRT, voice, snd_emu10k1_compose_send_routing(send_routing)); - /* Stop CA */ /* Assumption that PT is already 0 so no harm overwriting */ snd_emu10k1_ptr_write(emu, PTRX, voice, (send_amount[0] << 8) | send_amount[1]); snd_emu10k1_ptr_write(emu, DSL, voice, end_addr | (send_amount[3] << 24)); @@ -433,36 +415,6 @@ static int snd_emu10k1_playback_hw_free(struct snd_pcm_substream *substream) struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; struct snd_emu10k1_pcm *epcm; - - if (runtime->private_data == NULL) - return 0; - epcm = runtime->private_data; - if (epcm->extra) { - snd_emu10k1_voice_free(epcm->emu, epcm->extra); - epcm->extra = NULL; - } - if (epcm->voices[1]) { - snd_emu10k1_voice_free(epcm->emu, epcm->voices[1]); - epcm->voices[1] = NULL; - } - if (epcm->voices[0]) { - snd_emu10k1_voice_free(epcm->emu, epcm->voices[0]); - epcm->voices[0] = NULL; - } - if (epcm->memblk) { - snd_emu10k1_free_pages(emu, epcm->memblk); - epcm->memblk = NULL; - epcm->start_addr = 0; - } - snd_pcm_lib_free_pages(substream); - return 0; -} - -static int snd_emu10k1_efx_playback_hw_free(struct snd_pcm_substream *substream) -{ - struct snd_emu10k1 *emu = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_emu10k1_pcm *epcm; int i; if (runtime->private_data == NULL) @@ -527,9 +479,6 @@ static int snd_emu10k1_efx_playback_prepare(struct snd_pcm_substream *substream) start_addr = epcm->start_addr; end_addr = epcm->start_addr + snd_pcm_lib_buffer_bytes(substream); - /* - * the kX driver leaves some space between voices - */ channel_size = ( end_addr - start_addr ) / NUM_EFX_PLAYBACK; snd_emu10k1_pcm_init_voice(emu, 1, 1, epcm->extra, @@ -1091,8 +1040,6 @@ static int snd_emu10k1_efx_playback_open(struct snd_pcm_substream *substream) epcm->type = PLAYBACK_EFX; epcm->substream = substream; - emu->pcm_playback_efx_substream = substream; - runtime->private_data = epcm; runtime->private_free = snd_emu10k1_pcm_free_substream; runtime->hw = snd_emu10k1_efx_playback; @@ -1267,9 +1214,7 @@ static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream) runtime->hw.rate_min = runtime->hw.rate_max = 48000; spin_lock_irq(&emu->reg_lock); if (emu->card_capabilities->emu_model) { - /* Nb. of channels has been increased to 16 */ /* TODO - * SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE * SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | * SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | * SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000 @@ -1280,13 +1225,14 @@ static int snd_emu10k1_capture_efx_open(struct snd_pcm_substream *substream) * Need to add mixer control to fix sample rate * * There are 32 mono channels of 16bits each. - * 24bit Audio uses 2x channels over 16bit - * 96kHz uses 2x channels over 48kHz - * 192kHz uses 4x channels over 48kHz - * So, for 48kHz 24bit, one has 16 channels - * for 96kHz 24bit, one has 8 channels - * for 192kHz 24bit, one has 4 channels - * + * 24bit Audio uses 2x channels over 16bit, + * 96kHz uses 2x channels over 48kHz, + * 192kHz uses 4x channels over 48kHz. + * So, for 48kHz 24bit, one has 16 channels, + * for 96kHz 24bit, one has 8 channels, + * for 192kHz 24bit, one has 4 channels. + * 1010rev2 and 1616(m) cards have double that, + * but we don't exceed 16 channels anyway. */ #if 1 switch (emu->emu1010.internal_clock) { @@ -1372,10 +1318,10 @@ static const struct snd_pcm_ops snd_emu10k1_efx_playback_ops = { .open = snd_emu10k1_efx_playback_open, .close = snd_emu10k1_efx_playback_close, .hw_params = snd_emu10k1_playback_hw_params, - .hw_free = snd_emu10k1_efx_playback_hw_free, + .hw_free = snd_emu10k1_playback_hw_free, .prepare = snd_emu10k1_efx_playback_prepare, .trigger = snd_emu10k1_efx_playback_trigger, - .pointer = snd_emu10k1_efx_playback_pointer, + .pointer = snd_emu10k1_playback_pointer, }; int snd_emu10k1_pcm(struct snd_emu10k1 *emu, int device) @@ -1508,11 +1454,12 @@ static int snd_emu10k1_pcm_efx_voices_mask_put(struct snd_kcontrol *kcontrol, st nval[idx / 32] |= 1 << (idx % 32); bits++; } - + + // Check that the number of requested channels is a power of two + // not bigger than the number of available channels. for (idx = 0; idx < nefxb; idx++) if (1 << idx == bits) break; - if (idx >= nefxb) return -EINVAL; @@ -1802,7 +1749,6 @@ int snd_emu10k1_pcm_efx(struct snd_emu10k1 *emu, int device) * to these */ - /* emu->efx_voices_mask[0] = FXWC_DEFAULTROUTE_C | FXWC_DEFAULTROUTE_A; */ if (emu->audigy) { emu->efx_voices_mask[0] = 0; if (emu->card_capabilities->emu_model) |