OrgACRN
/
acrn-kernel
mirror of https://github.com/projectacrn/acrn-kernel.git
1
0
Fork 0
Code Issues Releases Wiki Activity

ALSA: hda: Interrupt servicing and BDL setup for compress streams 

Account for compress streams when receiving and servicing buffer
completed interrupts. In case of compress stream enlisting hdac_stream
for data transfer, setup BDL entries much like it is the case for PCM
streams.

Signed-off-by: Divya Prakash <divya1.prakash@intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20221202152841.672536-4-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski 2022-12-02 16:28:28 +01:00 committed by Mark Brown
parent f6b1254664
commit 3e9582267e
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 22 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sound/hda/hdac_controller.c
View File

@ -578,8 +578,8 @@ int snd_hdac_bus_handle_stream_irq(struct hdac_bus *bus, unsigned int status,
sd_status = snd_hdac_stream_readb(azx_dev, SD_STS);
snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK);
handled |= 1 << azx_dev->index;
if (!azx_dev->substream || !azx_dev->running ||
!(sd_status & SD_INT_COMPLETE))
if ((!azx_dev->substream && !azx_dev->cstream) ||
!azx_dev->running || !(sd_status & SD_INT_COMPLETE))
continue;
if (ack)
ack(bus, azx_dev);

27
sound/hda/hdac_stream.c
View File

@ -7,6 +7,7 @@
#include <linux/delay.h>
#include <linux/export.h>
#include <linux/clocksource.h>
#include <sound/compress_driver.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/hdaudio.h>
@ -487,14 +488,19 @@ int snd_hdac_stream_setup_periods(struct hdac_stream *azx_dev)
{
struct hdac_bus *bus = azx_dev->bus;
struct snd_pcm_substream *substream = azx_dev->substream;
struct snd_pcm_runtime *runtime;
struct snd_compr_stream *cstream = azx_dev->cstream;
struct snd_pcm_runtime *runtime = NULL;
struct snd_dma_buffer *dmab;
__le32 *bdl;
int i, ofs, periods, period_bytes;
int pos_adj, pos_align;
runtime = substream->runtime;
dmab = snd_pcm_get_dma_buf(substream);
if (substream) {
runtime = substream->runtime;
dmab = snd_pcm_get_dma_buf(substream);
} else if (cstream) {
dmab = snd_pcm_get_dma_buf(cstream);
}
/* reset BDL address */
snd_hdac_stream_writel(azx_dev, SD_BDLPL, 0);
@ -562,15 +568,22 @@ int snd_hdac_stream_set_params(struct hdac_stream *azx_dev,
unsigned int format_val)
{
struct snd_pcm_substream *substream = azx_dev->substream;
struct snd_compr_stream *cstream = azx_dev->cstream;
unsigned int bufsize, period_bytes;
unsigned int no_period_wakeup;
int err;
if (!substream)
if (substream) {
bufsize = snd_pcm_lib_buffer_bytes(substream);
period_bytes = snd_pcm_lib_period_bytes(substream);
no_period_wakeup = substream->runtime->no_period_wakeup;
} else if (cstream) {
bufsize = cstream->runtime->buffer_size;
period_bytes = cstream->runtime->fragment_size;
no_period_wakeup = 0;
} else {
return -EINVAL;
bufsize = snd_pcm_lib_buffer_bytes(substream);
period_bytes = snd_pcm_lib_period_bytes(substream);
no_period_wakeup = substream->runtime->no_period_wakeup;
}
if (bufsize != azx_dev->bufsize ||
period_bytes != azx_dev->period_bytes ||