ALSA: ice1712: Use bitrev8
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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0d26ce3403
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401de8184a
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@ -23,6 +23,7 @@
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#include <linux/slab.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/delay.h>
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#include <linux/init.h>
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#include <linux/init.h>
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#include <linux/bitrev.h>
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#include <asm/unaligned.h>
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#include <asm/unaligned.h>
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#include <sound/core.h>
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#include <sound/core.h>
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#include <sound/control.h>
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#include <sound/control.h>
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@ -55,18 +56,6 @@ struct cs8427 {
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struct cs8427_stream capture;
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struct cs8427_stream capture;
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};
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};
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static unsigned char swapbits(unsigned char val)
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{
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int bit;
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unsigned char res = 0;
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for (bit = 0; bit < 8; bit++) {
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res <<= 1;
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res |= val & 1;
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val >>= 1;
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}
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return res;
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}
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int snd_cs8427_reg_write(struct snd_i2c_device *device, unsigned char reg,
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int snd_cs8427_reg_write(struct snd_i2c_device *device, unsigned char reg,
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unsigned char val)
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unsigned char val)
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{
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{
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@ -149,7 +138,7 @@ static int snd_cs8427_send_corudata(struct snd_i2c_device *device,
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}
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}
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data[0] = CS8427_REG_AUTOINC | CS8427_REG_CORU_DATABUF;
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data[0] = CS8427_REG_AUTOINC | CS8427_REG_CORU_DATABUF;
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for (idx = 0; idx < count; idx++)
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for (idx = 0; idx < count; idx++)
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data[idx + 1] = swapbits(ndata[idx]);
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data[idx + 1] = bitrev8(ndata[idx]);
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if (snd_i2c_sendbytes(device, data, count + 1) != count + 1)
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if (snd_i2c_sendbytes(device, data, count + 1) != count + 1)
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return -EIO;
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return -EIO;
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return 1;
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return 1;
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@ -570,6 +570,7 @@ config SND_ICE1712
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tristate "ICEnsemble ICE1712 (Envy24)"
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tristate "ICEnsemble ICE1712 (Envy24)"
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select SND_MPU401_UART
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select SND_MPU401_UART
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select SND_AC97_CODEC
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select SND_AC97_CODEC
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select BITREVERSE
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help
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help
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Say Y here to include support for soundcards based on the
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Say Y here to include support for soundcards based on the
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ICE1712 (Envy24) chip.
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ICE1712 (Envy24) chip.
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