forked from luck/tmp_suning_uos_patched
ALSA: azt3328: use a helper variable to remove one indirection in hotpath
Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -294,6 +294,7 @@ MODULE_PARM_DESC(seqtimer_scaling, "Set 1024000Hz sequencer timer scale factor (
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struct snd_azf3328_codec_data {
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unsigned long io_base;
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unsigned int dma_base; /* helper to avoid an indirection in hotpath */
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struct snd_pcm_substream *substream;
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bool running;
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const char *name;
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@ -1165,14 +1166,17 @@ snd_azf3328_codec_setdmaa(struct snd_azf3328 *chip,
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static int
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snd_azf3328_codec_prepare(struct snd_pcm_substream *substream)
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{
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#if 0
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struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct snd_azf3328_codec *codec = runtime->private_data;
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#if 0
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unsigned int size = snd_pcm_lib_buffer_bytes(substream);
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unsigned int count = snd_pcm_lib_period_bytes(substream);
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#endif
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snd_azf3328_dbgcallenter();
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codec->dma_base = runtime->dma_addr;
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#if 0
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snd_azf3328_codec_setfmt(chip, AZF_CODEC_...,
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runtime->rate,
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@ -1370,18 +1374,17 @@ snd_azf3328_codec_pointer(struct snd_pcm_substream *substream,
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{
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const struct snd_azf3328 *chip = snd_pcm_substream_chip(substream);
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const struct snd_azf3328_codec_data *codec = &chip->codecs[codec_type];
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unsigned long bufptr, result;
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unsigned long result;
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snd_pcm_uframes_t frmres;
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#ifdef QUERY_HARDWARE
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bufptr = snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_START_1);
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#else
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bufptr = substream->runtime->dma_addr;
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#endif
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result = snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_CURRPOS);
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/* calculate offset */
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result -= bufptr;
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#ifdef QUERY_HARDWARE
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result -= snd_azf3328_codec_inl(codec, IDX_IO_CODEC_DMA_START_1);
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#else
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result -= codec->dma_base;
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#endif
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frmres = bytes_to_frames( substream->runtime, result);
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snd_azf3328_dbgcodec("%08li %s @ 0x%8lx, frames %8ld\n",
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jiffies, codec->name, result, frmres);
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