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 | ||
7b1eda22 DM |
7 | struct usb_mixer_interface { |
8 | struct snd_usb_audio *chip; | |
1faa5d07 | 9 | struct usb_host_interface *hostif; |
7b1eda22 DM |
10 | struct list_head list; |
11 | unsigned int ignore_ctl_error; | |
12 | struct urb *urb; | |
13 | /* array[MAX_ID_ELEMS], indexed by unit id */ | |
3360b84b | 14 | struct usb_mixer_elem_list **id_elems; |
7b1eda22 | 15 | |
23caaf19 DM |
16 | /* the usb audio specification version this interface complies to */ |
17 | int protocol; | |
18 | ||
7b1eda22 DM |
19 | /* Sound Blaster remote control stuff */ |
20 | const struct rc_config *rc_cfg; | |
21 | u32 rc_code; | |
22 | wait_queue_head_t rc_waitq; | |
23 | struct urb *rc_urb; | |
24 | struct usb_ctrlrequest *rc_setup_packet; | |
25 | u8 rc_buffer[6]; | |
124751d5 TI |
26 | |
27 | bool disconnected; | |
7b1eda22 DM |
28 | }; |
29 | ||
9e38658f DM |
30 | #define MAX_CHANNELS 16 /* max logical channels */ |
31 | ||
32 | enum { | |
33 | USB_MIXER_BOOLEAN, | |
34 | USB_MIXER_INV_BOOLEAN, | |
35 | USB_MIXER_S8, | |
36 | USB_MIXER_U8, | |
37 | USB_MIXER_S16, | |
38 | USB_MIXER_U16, | |
bc18e31c JS |
39 | USB_MIXER_S32, |
40 | USB_MIXER_U32, | |
9e38658f | 41 | }; |
7b1eda22 | 42 | |
3360b84b TI |
43 | typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer, |
44 | struct usb_mixer_elem_list *list); | |
45 | typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem); | |
46 | ||
47 | struct usb_mixer_elem_list { | |
7b1eda22 | 48 | struct usb_mixer_interface *mixer; |
3360b84b TI |
49 | struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */ |
50 | struct snd_kcontrol *kctl; | |
7b1eda22 | 51 | unsigned int id; |
3360b84b TI |
52 | usb_mixer_elem_dump_func_t dump; |
53 | usb_mixer_elem_resume_func_t resume; | |
54 | }; | |
55 | ||
56 | struct usb_mixer_elem_info { | |
57 | struct usb_mixer_elem_list head; | |
7b1eda22 DM |
58 | unsigned int control; /* CS or ICN (high byte) */ |
59 | unsigned int cmask; /* channel mask bitmap: 0 = master */ | |
9f814105 | 60 | unsigned int idx_off; /* Control index offset */ |
a6a33259 DM |
61 | unsigned int ch_readonly; |
62 | unsigned int master_readonly; | |
7b1eda22 DM |
63 | int channels; |
64 | int val_type; | |
65 | int min, max, res; | |
66 | int dBmin, dBmax; | |
67 | int cached; | |
68 | int cache_val[MAX_CHANNELS]; | |
69 | u8 initialized; | |
0f174b35 | 70 | u8 min_mute; |
f41d6049 | 71 | void *private_data; |
7b1eda22 DM |
72 | }; |
73 | ||
3e1aebef DM |
74 | int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif, |
75 | int ignore_error); | |
a6cece9d | 76 | void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer); |
3e1aebef | 77 | |
7b1eda22 DM |
78 | void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid); |
79 | ||
80 | int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval, | |
81 | int request, int validx, int value_set); | |
3e1aebef | 82 | |
3360b84b | 83 | int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list, |
ef9d5970 DM |
84 | struct snd_kcontrol *kctl); |
85 | ||
3360b84b TI |
86 | void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list, |
87 | struct usb_mixer_interface *mixer, | |
88 | int unitid); | |
89 | ||
285de9c0 FH |
90 | int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag, |
91 | unsigned int size, unsigned int __user *_tlv); | |
92 | ||
400362f1 TI |
93 | #ifdef CONFIG_PM |
94 | int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer); | |
95 | int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume); | |
96 | #endif | |
97 | ||
eef90451 CA |
98 | int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel, |
99 | int index, int value); | |
100 | ||
101 | int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval, | |
102 | int channel, int index, int *value); | |
103 | ||
104 | extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl); | |
105 | ||
3e1aebef | 106 | #endif /* __USBMIXER_H */ |