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Daniel Mack3e1aebe2010-03-04 19:46:12 +01001#ifndef __USBMIXER_H
2#define __USBMIXER_H
3
Takashi Iwai3360b842014-11-18 11:47:04 +01004#include <sound/info.h>
5
Daniel Mack7b1eda22010-03-11 21:13:22 +01006struct usb_mixer_interface {
7 struct snd_usb_audio *chip;
Daniel Mack1faa5d02011-08-04 15:56:28 +02008 struct usb_host_interface *hostif;
Daniel Mack7b1eda22010-03-11 21:13:22 +01009 struct list_head list;
10 unsigned int ignore_ctl_error;
11 struct urb *urb;
12 /* array[MAX_ID_ELEMS], indexed by unit id */
Takashi Iwai3360b842014-11-18 11:47:04 +010013 struct usb_mixer_elem_list **id_elems;
Daniel Mack7b1eda22010-03-11 21:13:22 +010014
Daniel Mack23caaf12010-03-11 21:13:25 +010015 /* the usb audio specification version this interface complies to */
16 int protocol;
17
Daniel Mack7b1eda22010-03-11 21:13:22 +010018 /* Sound Blaster remote control stuff */
19 const struct rc_config *rc_cfg;
20 u32 rc_code;
21 wait_queue_head_t rc_waitq;
22 struct urb *rc_urb;
23 struct usb_ctrlrequest *rc_setup_packet;
24 u8 rc_buffer[6];
Daniel Mack7b1eda22010-03-11 21:13:22 +010025};
26
Daniel Mack9e386582011-05-25 09:09:01 +020027#define MAX_CHANNELS 16 /* max logical channels */
28
29enum {
30 USB_MIXER_BOOLEAN,
31 USB_MIXER_INV_BOOLEAN,
32 USB_MIXER_S8,
33 USB_MIXER_U8,
34 USB_MIXER_S16,
35 USB_MIXER_U16,
Julian Scheelbc18e312015-08-14 16:14:45 +020036 USB_MIXER_S32,
37 USB_MIXER_U32,
Daniel Mack9e386582011-05-25 09:09:01 +020038};
Daniel Mack7b1eda22010-03-11 21:13:22 +010039
Takashi Iwai3360b842014-11-18 11:47:04 +010040typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer,
41 struct usb_mixer_elem_list *list);
42typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem);
43
44struct usb_mixer_elem_list {
Daniel Mack7b1eda22010-03-11 21:13:22 +010045 struct usb_mixer_interface *mixer;
Takashi Iwai3360b842014-11-18 11:47:04 +010046 struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */
47 struct snd_kcontrol *kctl;
Daniel Mack7b1eda22010-03-11 21:13:22 +010048 unsigned int id;
Takashi Iwai3360b842014-11-18 11:47:04 +010049 usb_mixer_elem_dump_func_t dump;
50 usb_mixer_elem_resume_func_t resume;
51};
52
53struct usb_mixer_elem_info {
54 struct usb_mixer_elem_list head;
Daniel Mack7b1eda22010-03-11 21:13:22 +010055 unsigned int control; /* CS or ICN (high byte) */
56 unsigned int cmask; /* channel mask bitmap: 0 = master */
Eldad Zack9f814102012-11-28 23:55:35 +010057 unsigned int idx_off; /* Control index offset */
Daniel Macka6a33252010-05-31 13:35:37 +020058 unsigned int ch_readonly;
59 unsigned int master_readonly;
Daniel Mack7b1eda22010-03-11 21:13:22 +010060 int channels;
61 int val_type;
62 int min, max, res;
63 int dBmin, dBmax;
64 int cached;
65 int cache_val[MAX_CHANNELS];
66 u8 initialized;
Chris J Argesf41d6042014-11-12 12:07:00 -060067 void *private_data;
Daniel Mack7b1eda22010-03-11 21:13:22 +010068};
69
Daniel Mack3e1aebe2010-03-04 19:46:12 +010070int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
71 int ignore_error);
Takashi Iwaia6cece92014-10-31 11:24:32 +010072void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer);
Daniel Mack3e1aebe2010-03-04 19:46:12 +010073
Daniel Mack7b1eda22010-03-11 21:13:22 +010074void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);
75
76int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
77 int request, int validx, int value_set);
Daniel Mack3e1aebe2010-03-04 19:46:12 +010078
Takashi Iwai3360b842014-11-18 11:47:04 +010079int snd_usb_mixer_add_control(struct usb_mixer_elem_list *list,
Daniel Mackef9d5972011-05-25 09:09:00 +020080 struct snd_kcontrol *kctl);
81
Takashi Iwai3360b842014-11-18 11:47:04 +010082void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list,
83 struct usb_mixer_interface *mixer,
84 int unitid);
85
Felix Homann285de9c2012-04-23 20:24:24 +020086int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
87 unsigned int size, unsigned int __user *_tlv);
88
Takashi Iwai400362f2014-01-20 16:51:16 +010089#ifdef CONFIG_PM
90int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer);
91int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume);
92#endif
93
Chris J Argeseef90452014-11-12 12:07:01 -060094int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
95 int index, int value);
96
97int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
98 int channel, int index, int *value);
99
100extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl);
101
Daniel Mack3e1aebe2010-03-04 19:46:12 +0100102#endif /* __USBMIXER_H */