ALSA: usb-audio: use endianness macros
Replace the endianness conversions with the kernel-wide swabbing macros in get/set_sample_rate_v2. Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -251,21 +251,21 @@ static int get_sample_rate_v2(struct snd_usb_audio *chip, int iface,
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int altsetting, int clock)
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int altsetting, int clock)
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{
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{
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struct usb_device *dev = chip->dev;
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struct usb_device *dev = chip->dev;
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unsigned char data[4];
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__le32 data;
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int err;
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int err;
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err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR,
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err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR,
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USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
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USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
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UAC2_CS_CONTROL_SAM_FREQ << 8,
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UAC2_CS_CONTROL_SAM_FREQ << 8,
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snd_usb_ctrl_intf(chip) | (clock << 8),
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snd_usb_ctrl_intf(chip) | (clock << 8),
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data, sizeof(data));
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&data, sizeof(data));
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if (err < 0) {
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if (err < 0) {
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snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq (v2)\n",
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snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq (v2)\n",
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dev->devnum, iface, altsetting);
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dev->devnum, iface, altsetting);
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return 0;
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return 0;
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}
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}
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return data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
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return le32_to_cpu(data);
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}
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}
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static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface,
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static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface,
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@ -273,7 +273,7 @@ static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface,
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struct audioformat *fmt, int rate)
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struct audioformat *fmt, int rate)
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{
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{
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struct usb_device *dev = chip->dev;
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struct usb_device *dev = chip->dev;
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unsigned char data[4];
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__le32 data;
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int err, cur_rate, prev_rate;
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int err, cur_rate, prev_rate;
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int clock = snd_usb_clock_find_source(chip, fmt->clock);
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int clock = snd_usb_clock_find_source(chip, fmt->clock);
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@ -289,15 +289,12 @@ static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface,
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prev_rate = get_sample_rate_v2(chip, iface, fmt->altsetting, clock);
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prev_rate = get_sample_rate_v2(chip, iface, fmt->altsetting, clock);
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data[0] = rate;
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data = cpu_to_le32(rate);
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data[1] = rate >> 8;
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data[2] = rate >> 16;
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data[3] = rate >> 24;
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if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC2_CS_CUR,
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if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC2_CS_CUR,
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USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
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USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
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UAC2_CS_CONTROL_SAM_FREQ << 8,
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UAC2_CS_CONTROL_SAM_FREQ << 8,
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snd_usb_ctrl_intf(chip) | (clock << 8),
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snd_usb_ctrl_intf(chip) | (clock << 8),
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data, sizeof(data))) < 0) {
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&data, sizeof(data))) < 0) {
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snd_printk(KERN_ERR "%d:%d:%d: cannot set freq %d (v2)\n",
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snd_printk(KERN_ERR "%d:%d:%d: cannot set freq %d (v2)\n",
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dev->devnum, iface, fmt->altsetting, rate);
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dev->devnum, iface, fmt->altsetting, rate);
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return err;
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return err;
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