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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 usbmix_connector_map {
10 u8 id;
11 u8 delegated_id;
12 u8 control;
13 u8 channel;
14};
15
16struct usb_mixer_interface {
17 struct snd_usb_audio *chip;
18 struct usb_host_interface *hostif;
19 struct list_head list;
20 unsigned int ignore_ctl_error;
21 struct urb *urb;
22 /* array[MAX_ID_ELEMS], indexed by unit id */
23 struct usb_mixer_elem_list **id_elems;
24
25 /* the usb audio specification version this interface complies to */
26 int protocol;
27
28 /* optional connector delegation map */
29 const struct usbmix_connector_map *connector_map;
30
31 /* Sound Blaster remote control stuff */
32 const struct rc_config *rc_cfg;
33 u32 rc_code;
34 wait_queue_head_t rc_waitq;
35 struct urb *rc_urb;
36 struct usb_ctrlrequest *rc_setup_packet;
37 u8 rc_buffer[6];
38 struct media_mixer_ctl *media_mixer_ctl;
39
40 bool disconnected;
41
42 void *private_data;
43 void (*private_free)(struct usb_mixer_interface *mixer);
44 void (*private_suspend)(struct usb_mixer_interface *mixer);
45};
46
47#define MAX_CHANNELS 16 /* max logical channels */
48
49enum {
50 USB_MIXER_BOOLEAN,
51 USB_MIXER_INV_BOOLEAN,
52 USB_MIXER_S8,
53 USB_MIXER_U8,
54 USB_MIXER_S16,
55 USB_MIXER_U16,
56 USB_MIXER_S32,
57 USB_MIXER_U32,
58};
59
60typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer,
61 struct usb_mixer_elem_list *list);
62typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem);
63
64struct usb_mixer_elem_list {
65 struct usb_mixer_interface *mixer;
66 struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */
67 struct snd_kcontrol *kctl;
68 unsigned int id;
69 bool is_std_info;
70 usb_mixer_elem_dump_func_t dump;
71 usb_mixer_elem_resume_func_t resume;
72};
73
74/* iterate over mixer element list of the given unit id */
75#define for_each_mixer_elem(list, mixer, id) \
76 for ((list) = (mixer)->id_elems[id]; (list); (list) = (list)->next_id_elem)
77#define mixer_elem_list_to_info(list) \
78 container_of(list, struct usb_mixer_elem_info, head)
79
80struct usb_mixer_elem_info {
81 struct usb_mixer_elem_list head;
82 unsigned int control; /* CS or ICN (high byte) */
83 unsigned int cmask; /* channel mask bitmap: 0 = master */
84 unsigned int idx_off; /* Control index offset */
85 unsigned int ch_readonly;
86 unsigned int master_readonly;
87 int channels;
88 int val_type;
89 int min, max, res;
90 int dBmin, dBmax;
91 int cached;
92 int cache_val[MAX_CHANNELS];
93 u8 initialized;
94 u8 min_mute;
95 void *private_data;
96};
97
98int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
99 int ignore_error);
100void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer);
101
102void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);
103
104int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
105 int request, int validx, int value_set);
106
107int snd_usb_mixer_add_list(struct usb_mixer_elem_list *list,
108 struct snd_kcontrol *kctl,
109 bool is_std_info);
110
111#define snd_usb_mixer_add_control(list, kctl) \
112 snd_usb_mixer_add_list(list, kctl, true)
113
114void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list,
115 struct usb_mixer_interface *mixer,
116 int unitid);
117
118int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
119 unsigned int size, unsigned int __user *_tlv);
120
121#ifdef CONFIG_PM
122int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer);
123int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume);
124#endif
125
126int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
127 int index, int value);
128
129int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
130 int channel, int index, int *value);
131
132extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl);
133
134extern const struct snd_kcontrol_new *snd_usb_feature_unit_ctl;
135
136#endif /* __USBMIXER_H */
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 idx_off; /* Control index offset */
47 unsigned int ch_readonly;
48 unsigned int master_readonly;
49 int channels;
50 int val_type;
51 int min, max, res;
52 int dBmin, dBmax;
53 int cached;
54 int cache_val[MAX_CHANNELS];
55 u8 initialized;
56};
57
58int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
59 int ignore_error);
60void snd_usb_mixer_disconnect(struct list_head *p);
61
62void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);
63
64int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
65 int request, int validx, int value_set);
66
67int snd_usb_mixer_add_control(struct usb_mixer_interface *mixer,
68 struct snd_kcontrol *kctl);
69
70int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
71 unsigned int size, unsigned int __user *_tlv);
72
73#ifdef CONFIG_PM
74int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer);
75int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume);
76#endif
77
78#endif /* __USBMIXER_H */