| #ifndef __USBMIXER_H |
| #define __USBMIXER_H |
| |
| struct usb_mixer_interface { |
| struct snd_usb_audio *chip; |
| struct usb_host_interface *hostif; |
| 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 16 /* max logical channels */ |
| |
| enum { |
| USB_MIXER_BOOLEAN, |
| USB_MIXER_INV_BOOLEAN, |
| USB_MIXER_S8, |
| USB_MIXER_U8, |
| USB_MIXER_S16, |
| USB_MIXER_U16, |
| }; |
| |
| 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 */ |
| unsigned int ch_readonly; |
| unsigned int master_readonly; |
| 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); |
| void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer); |
| int snd_usb_mixer_activate(struct usb_mixer_interface *mixer); |
| |
| int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, |
| struct snd_kcontrol *kctl); |
| |
| #endif /* __USBMIXER_H */ |