| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | #ifndef __USBMIXER_H |
| 2 | #define __USBMIXER_H |
| 3 | |
| 4 | struct usb_mixer_interface { |
| 5 | struct snd_usb_audio *chip; |
| 6 | struct usb_host_interface *hostif; |
| 7 | struct list_head list; |
| 8 | unsigned int ignore_ctl_error; |
| 9 | struct urb *urb; |
| 10 | /* array[MAX_ID_ELEMS], indexed by unit id */ |
| 11 | struct usb_mixer_elem_info **id_elems; |
| 12 | |
| 13 | /* the usb audio specification version this interface complies to */ |
| 14 | int protocol; |
| 15 | |
| 16 | /* Sound Blaster remote control stuff */ |
| 17 | const struct rc_config *rc_cfg; |
| 18 | u32 rc_code; |
| 19 | wait_queue_head_t rc_waitq; |
| 20 | struct urb *rc_urb; |
| 21 | struct usb_ctrlrequest *rc_setup_packet; |
| 22 | u8 rc_buffer[6]; |
| 23 | |
| 24 | u8 audigy2nx_leds[3]; |
| 25 | u8 xonar_u1_status; |
| 26 | }; |
| 27 | |
| 28 | #define MAX_CHANNELS 16 /* max logical channels */ |
| 29 | |
| 30 | enum { |
| 31 | USB_MIXER_BOOLEAN, |
| 32 | USB_MIXER_INV_BOOLEAN, |
| 33 | USB_MIXER_S8, |
| 34 | USB_MIXER_U8, |
| 35 | USB_MIXER_S16, |
| 36 | USB_MIXER_U16, |
| 37 | }; |
| 38 | |
| 39 | struct usb_mixer_elem_info { |
| 40 | struct usb_mixer_interface *mixer; |
| 41 | struct usb_mixer_elem_info *next_id_elem; /* list of controls with same id */ |
| 42 | struct snd_ctl_elem_id *elem_id; |
| 43 | unsigned int id; |
| 44 | unsigned int control; /* CS or ICN (high byte) */ |
| 45 | unsigned int cmask; /* channel mask bitmap: 0 = master */ |
| 46 | unsigned int ch_readonly; |
| 47 | unsigned int master_readonly; |
| 48 | int channels; |
| 49 | int val_type; |
| 50 | int min, max, res; |
| 51 | int dBmin, dBmax; |
| 52 | int cached; |
| 53 | int cache_val[MAX_CHANNELS]; |
| 54 | u8 initialized; |
| 55 | }; |
| 56 | |
| 57 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
| 58 | int ignore_error); |
| 59 | void snd_usb_mixer_disconnect(struct list_head *p); |
| 60 | |
| 61 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid); |
| 62 | |
| 63 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, |
| 64 | int request, int validx, int value_set); |
| 65 | void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer); |
| 66 | int snd_usb_mixer_activate(struct usb_mixer_interface *mixer); |
| 67 | |
| 68 | int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer, |
| 69 | struct snd_kcontrol *kctl); |
| 70 | |
| 71 | #endif /* __USBMIXER_H */ |