Loading...
1#ifndef __USBMIXER_H
2#define __USBMIXER_H
3
4struct 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
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};
38
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 */
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
57int 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
61void 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);
65void snd_usb_mixer_inactivate(struct usb_mixer_interface *mixer);
66int snd_usb_mixer_activate(struct usb_mixer_interface *mixer);
67
68int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer,
69 struct snd_kcontrol *kctl);
70
71#endif /* __USBMIXER_H */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __USBMIXER_H
3#define __USBMIXER_H
4
5#include <sound/info.h>
6
7struct media_mixer_ctl;
8
9struct usb_mixer_interface {
10 struct snd_usb_audio *chip;
11 struct usb_host_interface *hostif;
12 struct list_head list;
13 unsigned int ignore_ctl_error;
14 struct urb *urb;
15 /* array[MAX_ID_ELEMS], indexed by unit id */
16 struct usb_mixer_elem_list **id_elems;
17
18 /* the usb audio specification version this interface complies to */
19 int protocol;
20
21 /* Sound Blaster remote control stuff */
22 const struct rc_config *rc_cfg;
23 u32 rc_code;
24 wait_queue_head_t rc_waitq;
25 struct urb *rc_urb;
26 struct usb_ctrlrequest *rc_setup_packet;
27 u8 rc_buffer[6];
28 struct media_mixer_ctl *media_mixer_ctl;
29
30 bool disconnected;
31
32 void *private_data;
33 void (*private_free)(struct usb_mixer_interface *mixer);
34 void (*private_suspend)(struct usb_mixer_interface *mixer);
35};
36
37#define MAX_CHANNELS 16 /* max logical channels */
38
39enum {
40 USB_MIXER_BOOLEAN,
41 USB_MIXER_INV_BOOLEAN,
42 USB_MIXER_S8,
43 USB_MIXER_U8,
44 USB_MIXER_S16,
45 USB_MIXER_U16,
46 USB_MIXER_S32,
47 USB_MIXER_U32,
48};
49
50typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer,
51 struct usb_mixer_elem_list *list);
52typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem);
53
54struct usb_mixer_elem_list {
55 struct usb_mixer_interface *mixer;
56 struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */
57 struct snd_kcontrol *kctl;
58 unsigned int id;
59 usb_mixer_elem_dump_func_t dump;
60 usb_mixer_elem_resume_func_t resume;
61};
62
63/* iterate over mixer element list of the given unit id */
64#define for_each_mixer_elem(list, mixer, id) \
65 for ((list) = (mixer)->id_elems[id]; (list); (list) = (list)->next_id_elem)
66#define mixer_elem_list_to_info(list) \
67 container_of(list, struct usb_mixer_elem_info, head)
68
69struct usb_mixer_elem_info {
70 struct usb_mixer_elem_list head;
71 unsigned int control; /* CS or ICN (high byte) */
72 unsigned int cmask; /* channel mask bitmap: 0 = master */
73 unsigned int idx_off; /* Control index offset */
74 unsigned int ch_readonly;
75 unsigned int master_readonly;
76 int channels;
77 int val_type;
78 int min, max, res;
79 int dBmin, dBmax;
80 int cached;
81 int cache_val[MAX_CHANNELS];
82 u8 initialized;
83 u8 min_mute;
84 void *private_data;
85};
86
87int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
88 int ignore_error);
89void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer);
90
91void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);
92
93int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
94 int request, int validx, int value_set);
95
96int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list,
97 struct snd_kcontrol *kctl);
98
99void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list,
100 struct usb_mixer_interface *mixer,
101 int unitid);
102
103int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
104 unsigned int size, unsigned int __user *_tlv);
105
106#ifdef CONFIG_PM
107int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer);
108int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume);
109#endif
110
111int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
112 int index, int value);
113
114int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
115 int channel, int index, int *value);
116
117extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl);
118
119extern struct snd_kcontrol_new *snd_usb_feature_unit_ctl;
120
121#endif /* __USBMIXER_H */