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Commit 34585595 authored by Andreas Mohr's avatar Andreas Mohr Committed by Takashi Iwai
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ALSA: azt3328: use a helper variable to remove one indirection in hotpath 



Signed-off-by: default avatarAndreas Mohr <andi@lisas.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 9fd8d36c

sound/pci/azt3328.c

+12 −9
Original line number Diff line number Diff line
@@ -294,6 +294,7 @@ MODULE_PARM_DESC(seqtimer_scaling, "Set 1024000Hz sequencer timer scale factor ( 


struct snd_azf3328_codec_data {

	unsigned long io_base;

	unsigned int dma_base; /* helper to avoid an indirection in hotpath */

	struct snd_pcm_substream *substream;

	bool running;

	const char *name;
@@ -1165,14 +1166,17 @@ snd_azf3328_codec_setdmaa(struct snd_azf3328 *chip, 
static int

snd_azf3328_codec_prepare(struct snd_pcm_substream *substream)

{

#if 0

	struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);

	struct snd_pcm_runtime *runtime = substream->runtime;

	struct snd_azf3328_codec *codec = runtime->private_data;

#if 0

        unsigned int size = snd_pcm_lib_buffer_bytes(substream);

	unsigned int count = snd_pcm_lib_period_bytes(substream);

#endif



	snd_azf3328_dbgcallenter();



	codec->dma_base = runtime->dma_addr;



#if 0

	snd_azf3328_codec_setfmt(chip, AZF_CODEC_...,

		runtime->rate,
@@ -1370,18 +1374,17 @@ snd_azf3328_codec_pointer(struct snd_pcm_substream *substream, 
{

	const struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);

	const struct snd_azf3328_codec_data *codec = &chip->codecs[codec_type];

	unsigned long bufptr, result;

	unsigned long result;

	snd_pcm_uframes_t frmres;



#ifdef QUERY_HARDWARE

	bufptr = snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_START_1);

#else

	bufptr = substream->runtime->dma_addr;

#endif

	result = snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_CURRPOS);



	/* calculate offset */

	result -= bufptr;

#ifdef QUERY_HARDWARE

	result -= snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_START_1);

#else

	result -= codec->dma_base;

#endif

	frmres = bytes_to_frames( substream->runtime, result);

	snd_azf3328_dbgcodec("%08li %s @ 0x%8lx, frames %8ld\n",

				jiffies, codec->name, result, frmres);