diff options
Diffstat (limited to 'sound/usb/mixer.h')
| -rw-r--r-- | sound/usb/mixer.h | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h index 2478a844a322..0fe87b7c7f00 100644 --- a/sound/usb/mixer.h +++ b/sound/usb/mixer.h @@ -1,6 +1,8 @@ #ifndef __USBMIXER_H #define __USBMIXER_H +#include <sound/info.h> + struct usb_mixer_interface { struct snd_usb_audio *chip; struct usb_host_interface *hostif; @@ -8,7 +10,7 @@ struct usb_mixer_interface { unsigned int ignore_ctl_error; struct urb *urb; /* array[MAX_ID_ELEMS], indexed by unit id */ - struct usb_mixer_elem_info **id_elems; + struct usb_mixer_elem_list **id_elems; /* the usb audio specification version this interface complies to */ int protocol; @@ -36,11 +38,21 @@ enum { USB_MIXER_U16, }; -struct usb_mixer_elem_info { +typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer, + struct usb_mixer_elem_list *list); +typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem); + +struct usb_mixer_elem_list { 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; + struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */ + struct snd_kcontrol *kctl; unsigned int id; + usb_mixer_elem_dump_func_t dump; + usb_mixer_elem_resume_func_t resume; +}; + +struct usb_mixer_elem_info { + struct usb_mixer_elem_list head; unsigned int control; /* CS or ICN (high byte) */ unsigned int cmask; /* channel mask bitmap: 0 = master */ unsigned int idx_off; /* Control index offset */ @@ -65,9 +77,13 @@ 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); -int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, +int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, struct snd_kcontrol *kctl); +void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, + struct usb_mixer_interface *mixer, + int unitid); + int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, unsigned int size, unsigned int __user *_tlv); |