redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

Merge branch 'topic/hda-optimize' into topic/hda

Browse source
This commit is contained in:
Takashi Iwai 2009-03-20 16:33:30 +01:00
parent 2d864c499a 1dddab400b
commit c9840cf4cf
1 changed files with 54 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

79
sound/pci/hda/hda_intel.c
View file

@ -859,13 +859,18 @@ static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
SD_CTL_DMA_START | SD_INT_MASK);
}
/* stop a stream */
static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
/* stop DMA */
static void azx_stream_clear(struct azx *chip, struct azx_dev *azx_dev)
{
/* stop DMA */
azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
~(SD_CTL_DMA_START | SD_INT_MASK));
azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
}
/* stop a stream */
static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
{
azx_stream_clear(chip, azx_dev);
/* disable SIE */
azx_writeb(chip, INTCTL,
azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
@ -1076,8 +1081,7 @@ static int azx_setup_periods(struct azx *chip,
azx_sd_writel(azx_dev, SD_BDLPL, 0);
azx_sd_writel(azx_dev, SD_BDLPU, 0);
period_bytes = snd_pcm_lib_period_bytes(substream);
azx_dev->period_bytes = period_bytes;
period_bytes = azx_dev->period_bytes;
periods = azx_dev->bufsize / period_bytes;
/* program the initial BDL entries */
@ -1124,24 +1128,17 @@ static int azx_setup_periods(struct azx *chip,
error:
snd_printk(KERN_ERR "Too many BDL entries: buffer=%d, period=%d\n",
azx_dev->bufsize, period_bytes);
/* reset */
azx_sd_writel(azx_dev, SD_BDLPL, 0);
azx_sd_writel(azx_dev, SD_BDLPU, 0);
return -EINVAL;
}
/*
* set up the SD for streaming
*/
static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
/* reset stream */
static void azx_stream_reset(struct azx *chip, struct azx_dev *azx_dev)
{
unsigned char val;
int timeout;
/* make sure the run bit is zero for SD */
azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
~SD_CTL_DMA_START);
/* reset stream */
azx_stream_clear(chip, azx_dev);
azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
SD_CTL_STREAM_RESET);
udelay(3);
@ -1158,7 +1155,15 @@ static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
--timeout)
;
}
/*
* set up the SD for streaming
*/
static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
{
/* make sure the run bit is zero for SD */
azx_stream_clear(chip, azx_dev);
/* program the stream_tag */
azx_sd_writel(azx_dev, SD_CTL,
(azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
@ -1403,6 +1408,8 @@ static int azx_pcm_open(struct snd_pcm_substream *substream)
runtime->private_data = azx_dev;
snd_pcm_set_sync(substream);
mutex_unlock(&chip->open_mutex);
azx_stream_reset(chip, azx_dev);
return 0;
}
@ -1429,6 +1436,11 @@ static int azx_pcm_close(struct snd_pcm_substream *substream)
static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct azx_dev *azx_dev = get_azx_dev(substream);
azx_dev->bufsize = 0;
azx_dev->period_bytes = 0;
azx_dev->format_val = 0;
return snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
}
@ -1443,6 +1455,9 @@ static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
azx_sd_writel(azx_dev, SD_BDLPL, 0);
azx_sd_writel(azx_dev, SD_BDLPU, 0);
azx_sd_writel(azx_dev, SD_CTL, 0);
azx_dev->bufsize = 0;
azx_dev->period_bytes = 0;
azx_dev->format_val = 0;
hinfo->ops.cleanup(hinfo, apcm->codec, substream);
@ -1456,23 +1471,37 @@ static int azx_pcm_prepare(struct snd_pcm_substream *substream)
struct azx_dev *azx_dev = get_azx_dev(substream);
struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned int bufsize, period_bytes, format_val;
int err;
azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
runtime->channels,
runtime->format,
hinfo->maxbps);
if (!azx_dev->format_val) {
format_val = snd_hda_calc_stream_format(runtime->rate,
runtime->channels,
runtime->format,
hinfo->maxbps);
if (!format_val) {
snd_printk(KERN_ERR SFX
"invalid format_val, rate=%d, ch=%d, format=%d\n",
runtime->rate, runtime->channels, runtime->format);
return -EINVAL;
}
bufsize = snd_pcm_lib_buffer_bytes(substream);
period_bytes = snd_pcm_lib_period_bytes(substream);
snd_printdd("azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
azx_dev->bufsize, azx_dev->format_val);
if (azx_setup_periods(chip, substream, azx_dev) < 0)
return -EINVAL;
bufsize, format_val);
if (bufsize != azx_dev->bufsize ||
period_bytes != azx_dev->period_bytes ||
format_val != azx_dev->format_val) {
azx_dev->bufsize = bufsize;
azx_dev->period_bytes = period_bytes;
azx_dev->format_val = format_val;
err = azx_setup_periods(chip, substream, azx_dev);
if (err < 0)
return err;
}
azx_setup_controller(chip, azx_dev);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;