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try to align the offset to be more compliant

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33047 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval 2009-09-10 22:55:02 +00:00
parent 561c00c9c3
commit ea9f99f3fb
1 changed files with 11 additions and 13 deletions
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24
src/add-ons/kernel/drivers/audio/hda/hda_controller.cpp
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@ -119,13 +119,6 @@ stream_handle_interrupt(hda_controller* controller, hda_stream* stream)
stream->frames_count += stream->buffer_length;
stream->buffer_cycle = position / bufferSize;
// playback interrupts come early, offsets don't work on non intel
// TODO find out why
if (stream->type == STREAM_PLAYBACK
&& stream->controller->pci_info.vendor_id != INTEL_VENDORID) {
stream->buffer_cycle++;
}
release_spinlock(&stream->lock);
release_sem_etc(controller->buffer_ready_sem, 1, B_DO_NOT_RESCHEDULE);
@ -563,13 +556,18 @@ hda_stream_setup_buffers(hda_audio_group* audioGroup, hda_stream* stream,
// TODO check on other vendors, see in stream_handle_interrupt()
// Tested only on Intel ICH8
uint32 offset = 0;
if (stream->type == STREAM_PLAYBACK && stream->controller->pci_info.vendor_id == INTEL_VENDORID) {
if (stream->sample_size == 2)
offset = 6;
else if (stream->sample_size > 2)
offset = 8;
if (stream->type == STREAM_PLAYBACK) {
if (stream->controller->pci_info.vendor_id == INTEL_VENDORID) {
if (stream->sample_size == 2)
offset = 3;
else if (stream->sample_size > 2)
offset = 4;
} else {
offset = 11;
}
offset *= 64;
offset = ALIGN(offset, 128);
}
offset *= 32;
/* Calculate size of buffer (aligned to 128 bytes) */
bufferSize = stream->sample_size * stream->num_channels