diff options
author | Jaroslav Kysela <perex@perex.cz> | 2010-04-16 10:37:41 +0200 |
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committer | Jaroslav Kysela <perex@perex.cz> | 2010-04-16 10:37:41 +0200 |
commit | f09d045e2a61d2fdae3d0127208f18c9f44acf80 (patch) | |
tree | edbe84444ac4e6f1d52aa87aef2e2e7d008fcb16 /sound/usb/mixer.h | |
parent | dc57da3875f527b1cc195ea4ce5bd32e1e68433d (diff) | |
parent | 27762b2ce16d5c6f7bc8ab1aad1b9179076f997a (diff) |
Merge branch 'topic/usb' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 into devel
Diffstat (limited to 'sound/usb/mixer.h')
-rw-r--r-- | sound/usb/mixer.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h new file mode 100644 index 00000000000..130123854a6 --- /dev/null +++ b/sound/usb/mixer.h @@ -0,0 +1,55 @@ +#ifndef __USBMIXER_H +#define __USBMIXER_H + +struct usb_mixer_interface { + struct snd_usb_audio *chip; + unsigned int ctrlif; + struct list_head list; + unsigned int ignore_ctl_error; + struct urb *urb; + /* array[MAX_ID_ELEMS], indexed by unit id */ + struct usb_mixer_elem_info **id_elems; + + /* the usb audio specification version this interface complies to */ + int protocol; + + /* Sound Blaster remote control stuff */ + const struct rc_config *rc_cfg; + u32 rc_code; + wait_queue_head_t rc_waitq; + struct urb *rc_urb; + struct usb_ctrlrequest *rc_setup_packet; + u8 rc_buffer[6]; + + u8 audigy2nx_leds[3]; + u8 xonar_u1_status; +}; + +#define MAX_CHANNELS 10 /* max logical channels */ + +struct usb_mixer_elem_info { + struct usb_mixer_interface *mixer; + struct usb_mixer_elem_info *next_id_elem; /* list of controls with same id */ + struct snd_ctl_elem_id *elem_id; + unsigned int id; + unsigned int control; /* CS or ICN (high byte) */ + unsigned int cmask; /* channel mask bitmap: 0 = master */ + int channels; + int val_type; + int min, max, res; + int dBmin, dBmax; + int cached; + int cache_val[MAX_CHANNELS]; + u8 initialized; +}; + +int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, + int ignore_error); +void snd_usb_mixer_disconnect(struct list_head *p); + +void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid); + +int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, + int request, int validx, int value_set); + +#endif /* __USBMIXER_H */ |