| 1 | #ifndef __USBMIXER_H |
| 2 | #define __USBMIXER_H |
| 3 | |
| 4 | struct usb_mixer_interface { |
| 5 | struct snd_usb_audio *chip; |
| 6 | struct list_head list; |
| 7 | unsigned int ignore_ctl_error; |
| 8 | struct urb *urb; |
| 9 | /* array[MAX_ID_ELEMS], indexed by unit id */ |
| 10 | struct usb_mixer_elem_info **id_elems; |
| 11 | |
| 12 | /* the usb audio specification version this interface complies to */ |
| 13 | int protocol; |
| 14 | |
| 15 | /* Sound Blaster remote control stuff */ |
| 16 | const struct rc_config *rc_cfg; |
| 17 | u32 rc_code; |
| 18 | wait_queue_head_t rc_waitq; |
| 19 | struct urb *rc_urb; |
| 20 | struct usb_ctrlrequest *rc_setup_packet; |
| 21 | u8 rc_buffer[6]; |
| 22 | |
| 23 | u8 audigy2nx_leds[3]; |
| 24 | u8 xonar_u1_status; |
| 25 | }; |
| 26 | |
| 27 | #define MAX_CHANNELS 10 /* max logical channels */ |
| 28 | |
| 29 | struct usb_mixer_elem_info { |
| 30 | struct usb_mixer_interface *mixer; |
| 31 | struct usb_mixer_elem_info *next_id_elem; /* list of controls with same id */ |
| 32 | struct snd_ctl_elem_id *elem_id; |
| 33 | unsigned int id; |
| 34 | unsigned int control; /* CS or ICN (high byte) */ |
| 35 | unsigned int cmask; /* channel mask bitmap: 0 = master */ |
| 36 | unsigned int ch_readonly; |
| 37 | unsigned int master_readonly; |
| 38 | int channels; |
| 39 | int val_type; |
| 40 | int min, max, res; |
| 41 | int dBmin, dBmax; |
| 42 | int cached; |
| 43 | int cache_val[MAX_CHANNELS]; |
| 44 | u8 initialized; |
| 45 | }; |
| 46 | |
| 47 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
| 48 | int ignore_error); |
| 49 | void snd_usb_mixer_disconnect(struct list_head *p); |
| 50 | |
| 51 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid); |
| 52 | |
| 53 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
| 54 | int request, int validx, int value_set); |
| 55 | |
| 56 | #endif /* __USBMIXER_H */ |