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Daniel Mack3e1aebe2010-03-04 19:46:12 +01001#ifndef __USBMIXER_H
2#define __USBMIXER_H
3
Daniel Mack7b1eda22010-03-11 21:13:22 +01004struct usb_mixer_interface {
5 struct snd_usb_audio *chip;
Daniel Mack1faa5d02011-08-04 15:56:28 +02006 struct usb_host_interface *hostif;
Daniel Mack7b1eda22010-03-11 21:13:22 +01007 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
Daniel Mack23caaf12010-03-11 21:13:25 +010013 /* the usb audio specification version this interface complies to */
14 int protocol;
15
Daniel Mack7b1eda22010-03-11 21:13:22 +010016 /* 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
Daniel Mack9e386582011-05-25 09:09:01 +020028#define MAX_CHANNELS 16 /* max logical channels */
29
30enum {
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};
Daniel Mack7b1eda22010-03-11 21:13:22 +010038
39struct 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 */
Daniel Macka6a33252010-05-31 13:35:37 +020046 unsigned int ch_readonly;
47 unsigned int master_readonly;
Daniel Mack7b1eda22010-03-11 21:13:22 +010048 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
Daniel Mack3e1aebe2010-03-04 19:46:12 +010057int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
58 int ignore_error);
59void snd_usb_mixer_disconnect(struct list_head *p);
60
Daniel Mack7b1eda22010-03-11 21:13:22 +010061void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);
62
63int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
64 int request, int validx, int value_set);
Oliver Neukumedf7de32011-03-11 13:19:43 +010065void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer);
66int snd_usb_mixer_activate(struct usb_mixer_interface *mixer);
Daniel Mack3e1aebe2010-03-04 19:46:12 +010067
Daniel Mackef9d5972011-05-25 09:09:00 +020068int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer,
69 struct snd_kcontrol *kctl);
70
Daniel Mack3e1aebe2010-03-04 19:46:12 +010071#endif /* __USBMIXER_H */