Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
3e1aebef DM |
2 | #ifndef __USBMIXER_H |
3 | #define __USBMIXER_H | |
4 | ||
3360b84b TI |
5 | #include <sound/info.h> |
6 | ||
66354f18 SK |
7 | struct media_mixer_ctl; |
8 | ||
7b1eda22 DM |
9 | struct usb_mixer_interface { |
10 | struct snd_usb_audio *chip; | |
1faa5d07 | 11 | struct usb_host_interface *hostif; |
7b1eda22 DM |
12 | struct list_head list; |
13 | unsigned int ignore_ctl_error; | |
14 | struct urb *urb; | |
15 | /* array[MAX_ID_ELEMS], indexed by unit id */ | |
3360b84b | 16 | struct usb_mixer_elem_list **id_elems; |
7b1eda22 | 17 | |
23caaf19 DM |
18 | /* the usb audio specification version this interface complies to */ |
19 | int protocol; | |
20 | ||
7b1eda22 DM |
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]; | |
66354f18 | 28 | struct media_mixer_ctl *media_mixer_ctl; |
124751d5 TI |
29 | |
30 | bool disconnected; | |
9e4d5c1b GB |
31 | |
32 | void *private_data; | |
33 | void (*private_free)(struct usb_mixer_interface *mixer); | |
34 | void (*private_suspend)(struct usb_mixer_interface *mixer); | |
7b1eda22 DM |
35 | }; |
36 | ||
9e38658f DM |
37 | #define MAX_CHANNELS 16 /* max logical channels */ |
38 | ||
39 | enum { | |
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, | |
bc18e31c JS |
46 | USB_MIXER_S32, |
47 | USB_MIXER_U32, | |
9e38658f | 48 | }; |
7b1eda22 | 49 | |
3360b84b TI |
50 | typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer, |
51 | struct usb_mixer_elem_list *list); | |
52 | typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem); | |
53 | ||
54 | struct usb_mixer_elem_list { | |
7b1eda22 | 55 | struct usb_mixer_interface *mixer; |
3360b84b TI |
56 | struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */ |
57 | struct snd_kcontrol *kctl; | |
7b1eda22 | 58 | unsigned int id; |
3360b84b TI |
59 | usb_mixer_elem_dump_func_t dump; |
60 | usb_mixer_elem_resume_func_t resume; | |
61 | }; | |
62 | ||
8c558076 TI |
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 | ||
3360b84b TI |
69 | struct usb_mixer_elem_info { |
70 | struct usb_mixer_elem_list head; | |
7b1eda22 DM |
71 | unsigned int control; /* CS or ICN (high byte) */ |
72 | unsigned int cmask; /* channel mask bitmap: 0 = master */ | |
9f814105 | 73 | unsigned int idx_off; /* Control index offset */ |
a6a33259 DM |
74 | unsigned int ch_readonly; |
75 | unsigned int master_readonly; | |
7b1eda22 DM |
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; | |
0f174b35 | 83 | u8 min_mute; |
f41d6049 | 84 | void *private_data; |
7b1eda22 DM |
85 | }; |
86 | ||
3e1aebef DM |
87 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
88 | int ignore_error); | |
a6cece9d | 89 | void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer); |
3e1aebef | 90 | |
7b1eda22 DM |
91 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid); |
92 | ||
93 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, | |
94 | int request, int validx, int value_set); | |
3e1aebef | 95 | |
3360b84b | 96 | int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, |
ef9d5970 DM |
97 | struct snd_kcontrol *kctl); |
98 | ||
3360b84b TI |
99 | void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, |
100 | struct usb_mixer_interface *mixer, | |
101 | int unitid); | |
102 | ||
285de9c0 FH |
103 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
104 | unsigned int size, unsigned int __user *_tlv); | |
105 | ||
400362f1 TI |
106 | #ifdef CONFIG_PM |
107 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer); | |
108 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume); | |
109 | #endif | |
110 | ||
eef90451 CA |
111 | int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
112 | int index, int value); | |
113 | ||
114 | int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, | |
115 | int channel, int index, int *value); | |
116 | ||
117 | extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl); | |
118 | ||
00966dcd TI |
119 | extern struct snd_kcontrol_new *snd_usb_feature_unit_ctl; |
120 | ||
3e1aebef | 121 | #endif /* __USBMIXER_H */ |