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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-29 15:31:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-29 15:31:57 -0700 |
| commit | 52b0ace7dfe8f70350218017a95d7cab1eb41fbb (patch) | |
| tree | e474f8e2c5ac1712e1e1155b879420dde4aa3922 /sound/usb/pcm.c | |
| parent | 24010e460454ec0d2f4f0213b667b4349cbdb8e1 (diff) | |
| parent | d6695f09ea30de712662fcf8dd0e8c4d4306a15a (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (26 commits)
ALSA: snd-usb-caiaq: Bump version number to 1.3.21
ALSA: Revert "ALSA: snd-usb-caiaq: Set default input mode of A4DJ"
ALSA: snd-usb-caiaq: Simplify single case to an 'if'
ALSA: snd-usb-caiaq: Restore 'Control vinyl' input mode on A4DJ
ALSA: hda: Use LPIB for a Shuttle device
ALSA: hda: Add support for another Lenovo ThinkPad Edge in conexant codec
ALSA: hda: Use LPIB for Sony VPCS11V9E
ALSA: usb-audio: fix feature unit parser for UAC2
ALSA: asihpi - Minor code cleanup
ALSA: asihpi - Add support for new ASI8800 family
ALSA: asihpi - Fix bug preventing outstream_write preload from happening
ALSA: asihpi - Fix imbalanced lock path in hw_message
ALSA: asihpi - Remove support for old ASI8800 family
ALSA: asihpi - Add hd radio blend functions
ALSA: asihpi - Remove unused io map functions
ALSA: usb-audio: add support for UAC2 pitch control
ALSA: usb-audio: parse UAC2 endpoint descriptors correctly
ALSA: usb-audio: fix return values
ALSA: usb-audio: parse more format descriptors with structs
sound: Add missing spin_unlock
...
Diffstat (limited to 'sound/usb/pcm.c')
| -rw-r--r-- | sound/usb/pcm.c | 37 |
1 files changed, 30 insertions, 7 deletions
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 2bf0d77d176..056587de7be 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -120,10 +120,6 @@ static int init_pitch_v1(struct snd_usb_audio *chip, int iface, ep = get_endpoint(alts, 0)->bEndpointAddress; - /* if endpoint doesn't have pitch control, bail out */ - if (!(fmt->attributes & UAC_EP_CS_ATTR_PITCH_CONTROL)) - return 0; - data[0] = 1; if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR, USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT, @@ -137,8 +133,32 @@ static int init_pitch_v1(struct snd_usb_audio *chip, int iface, return 0; } +static int init_pitch_v2(struct snd_usb_audio *chip, int iface, + struct usb_host_interface *alts, + struct audioformat *fmt) +{ + struct usb_device *dev = chip->dev; + unsigned char data[1]; + unsigned int ep; + int err; + + ep = get_endpoint(alts, 0)->bEndpointAddress; + + data[0] = 1; + if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC2_CS_CUR, + USB_TYPE_CLASS | USB_RECIP_ENDPOINT | USB_DIR_OUT, + UAC2_EP_CS_PITCH << 8, 0, + data, sizeof(data), 1000)) < 0) { + snd_printk(KERN_ERR "%d:%d:%d: cannot set enable PITCH (v2)\n", + dev->devnum, iface, fmt->altsetting); + return err; + } + + return 0; +} + /* - * initialize the picth control and sample rate + * initialize the pitch control and sample rate */ int snd_usb_init_pitch(struct snd_usb_audio *chip, int iface, struct usb_host_interface *alts, @@ -146,13 +166,16 @@ int snd_usb_init_pitch(struct snd_usb_audio *chip, int iface, { struct usb_interface_descriptor *altsd = get_iface_desc(alts); + /* if endpoint doesn't have pitch control, bail out */ + if (!(fmt->attributes & UAC_EP_CS_ATTR_PITCH_CONTROL)) + return 0; + switch (altsd->bInterfaceProtocol) { case UAC_VERSION_1: return init_pitch_v1(chip, iface, alts, fmt); case UAC_VERSION_2: - /* not implemented yet */ - return 0; + return init_pitch_v2(chip, iface, alts, fmt); } return -EINVAL; |