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 | ||
fef66ae7 TI |
9 | struct usbmix_connector_map { |
10 | u8 id; | |
11 | u8 delegated_id; | |
12 | u8 control; | |
13 | u8 channel; | |
14 | }; | |
15 | ||
7b1eda22 DM |
16 | struct usb_mixer_interface { |
17 | struct snd_usb_audio *chip; | |
1faa5d07 | 18 | struct usb_host_interface *hostif; |
7b1eda22 DM |
19 | struct list_head list; |
20 | unsigned int ignore_ctl_error; | |
21 | struct urb *urb; | |
22 | /* array[MAX_ID_ELEMS], indexed by unit id */ | |
3360b84b | 23 | struct usb_mixer_elem_list **id_elems; |
7b1eda22 | 24 | |
23caaf19 DM |
25 | /* the usb audio specification version this interface complies to */ |
26 | int protocol; | |
27 | ||
fef66ae7 TI |
28 | /* optional connector delegation map */ |
29 | const struct usbmix_connector_map *connector_map; | |
30 | ||
7b1eda22 DM |
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]; | |
66354f18 | 38 | struct media_mixer_ctl *media_mixer_ctl; |
124751d5 TI |
39 | |
40 | bool disconnected; | |
9e4d5c1b GB |
41 | |
42 | void *private_data; | |
43 | void (*private_free)(struct usb_mixer_interface *mixer); | |
44 | void (*private_suspend)(struct usb_mixer_interface *mixer); | |
7b1eda22 DM |
45 | }; |
46 | ||
9e38658f DM |
47 | #define MAX_CHANNELS 16 /* max logical channels */ |
48 | ||
49 | enum { | |
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, | |
bc18e31c JS |
56 | USB_MIXER_S32, |
57 | USB_MIXER_U32, | |
785b6f29 | 58 | USB_MIXER_BESPOKEN, /* non-standard type */ |
9e38658f | 59 | }; |
7b1eda22 | 60 | |
3360b84b TI |
61 | typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer, |
62 | struct usb_mixer_elem_list *list); | |
63 | typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem); | |
64 | ||
65 | struct usb_mixer_elem_list { | |
7b1eda22 | 66 | struct usb_mixer_interface *mixer; |
3360b84b TI |
67 | struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */ |
68 | struct snd_kcontrol *kctl; | |
7b1eda22 | 69 | unsigned int id; |
220345e9 | 70 | bool is_std_info; |
3360b84b TI |
71 | usb_mixer_elem_dump_func_t dump; |
72 | usb_mixer_elem_resume_func_t resume; | |
73 | }; | |
74 | ||
8c558076 TI |
75 | /* iterate over mixer element list of the given unit id */ |
76 | #define for_each_mixer_elem(list, mixer, id) \ | |
77 | for ((list) = (mixer)->id_elems[id]; (list); (list) = (list)->next_id_elem) | |
78 | #define mixer_elem_list_to_info(list) \ | |
79 | container_of(list, struct usb_mixer_elem_info, head) | |
80 | ||
3360b84b TI |
81 | struct usb_mixer_elem_info { |
82 | struct usb_mixer_elem_list head; | |
7b1eda22 DM |
83 | unsigned int control; /* CS or ICN (high byte) */ |
84 | unsigned int cmask; /* channel mask bitmap: 0 = master */ | |
9f814105 | 85 | unsigned int idx_off; /* Control index offset */ |
a6a33259 DM |
86 | unsigned int ch_readonly; |
87 | unsigned int master_readonly; | |
7b1eda22 DM |
88 | int channels; |
89 | int val_type; | |
90 | int min, max, res; | |
901e8567 | 91 | int max_exposed; /* control API exposes the value in 0..max_exposed */ |
7b1eda22 DM |
92 | int dBmin, dBmax; |
93 | int cached; | |
94 | int cache_val[MAX_CHANNELS]; | |
95 | u8 initialized; | |
0f174b35 | 96 | u8 min_mute; |
f41d6049 | 97 | void *private_data; |
7b1eda22 DM |
98 | }; |
99 | ||
3c69dc91 | 100 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif); |
a6cece9d | 101 | void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer); |
3e1aebef | 102 | |
7b1eda22 DM |
103 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid); |
104 | ||
105 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, | |
106 | int request, int validx, int value_set); | |
3e1aebef | 107 | |
220345e9 TI |
108 | int snd_usb_mixer_add_list(struct usb_mixer_elem_list *list, |
109 | struct snd_kcontrol *kctl, | |
110 | bool is_std_info); | |
111 | ||
112 | #define snd_usb_mixer_add_control(list, kctl) \ | |
113 | snd_usb_mixer_add_list(list, kctl, true) | |
ef9d5970 | 114 | |
3360b84b TI |
115 | void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, |
116 | struct usb_mixer_interface *mixer, | |
117 | int unitid); | |
118 | ||
285de9c0 FH |
119 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
120 | unsigned int size, unsigned int __user *_tlv); | |
121 | ||
400362f1 | 122 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer); |
7b9cf903 | 123 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer); |
400362f1 | 124 | |
eef90451 CA |
125 | int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
126 | int index, int value); | |
127 | ||
128 | int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, | |
129 | int channel, int index, int *value); | |
130 | ||
131 | extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl); | |
132 | ||
195727e8 | 133 | extern const struct snd_kcontrol_new *snd_usb_feature_unit_ctl; |
00966dcd | 134 | |
3e1aebef | 135 | #endif /* __USBMIXER_H */ |