117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
|
#ifndef __USBMIXER_H
|
||
|
|
#define __USBMIXER_H
|
||
|
|
|
||
|
|
#include <sound/info.h>
|
||
|
|
|
||
|
|
struct usb_mixer_interface {
|
||
|
|
struct snd_usb_audio *chip;
|
||
|
|
struct usb_host_interface *hostif;
|
||
|
|
struct list_head list;
|
||
|
|
unsigned int ignore_ctl_error;
|
||
|
|
struct urb *urb;
|
||
|
|
/* array[MAX_ID_ELEMS], indexed by unit id */
|
||
|
|
struct usb_mixer_elem_list **id_elems;
|
||
|
|
|
||
|
|
/* the usb audio specification version this interface complies to */
|
||
|
|
int protocol;
|
||
|
|
|
||
|
|
/* Sound Blaster remote control stuff */
|
||
|
|
const struct rc_config *rc_cfg;
|
||
|
|
u32 rc_code;
|
||
|
|
wait_queue_head_t rc_waitq;
|
||
|
|
struct urb *rc_urb;
|
||
|
|
struct usb_ctrlrequest *rc_setup_packet;
|
||
|
|
u8 rc_buffer[6];
|
||
|
|
|
||
|
|
bool disconnected;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define MAX_CHANNELS 16 /* max logical channels */
|
||
|
|
|
||
|
|
enum {
|
||
|
|
USB_MIXER_BOOLEAN,
|
||
|
|
USB_MIXER_INV_BOOLEAN,
|
||
|
|
USB_MIXER_S8,
|
||
|
|
USB_MIXER_U8,
|
||
|
|
USB_MIXER_S16,
|
||
|
|
USB_MIXER_U16,
|
||
|
|
USB_MIXER_S32,
|
||
|
|
USB_MIXER_U32,
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef void (*usb_mixer_elem_dump_func_t)(struct snd_info_buffer *buffer,
|
||
|
|
struct usb_mixer_elem_list *list);
|
||
|
|
typedef int (*usb_mixer_elem_resume_func_t)(struct usb_mixer_elem_list *elem);
|
||
|
|
|
||
|
|
struct usb_mixer_elem_list {
|
||
|
|
struct usb_mixer_interface *mixer;
|
||
|
|
struct usb_mixer_elem_list *next_id_elem; /* list of controls with same id */
|
||
|
|
struct snd_kcontrol *kctl;
|
||
|
|
unsigned int id;
|
||
|
|
bool is_std_info;
|
||
|
|
usb_mixer_elem_dump_func_t dump;
|
||
|
|
usb_mixer_elem_resume_func_t resume;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* iterate over mixer element list of the given unit id */
|
||
|
|
#define for_each_mixer_elem(list, mixer, id) \
|
||
|
|
for ((list) = (mixer)->id_elems[id]; (list); (list) = (list)->next_id_elem)
|
||
|
|
#define mixer_elem_list_to_info(list) \
|
||
|
|
container_of(list, struct usb_mixer_elem_info, head)
|
||
|
|
|
||
|
|
struct usb_mixer_elem_info {
|
||
|
|
struct usb_mixer_elem_list head;
|
||
|
|
unsigned int control; /* CS or ICN (high byte) */
|
||
|
|
unsigned int cmask; /* channel mask bitmap: 0 = master */
|
||
|
|
unsigned int idx_off; /* Control index offset */
|
||
|
|
unsigned int ch_readonly;
|
||
|
|
unsigned int master_readonly;
|
||
|
|
int channels;
|
||
|
|
int val_type;
|
||
|
|
int min, max, res;
|
||
|
|
int dBmin, dBmax;
|
||
|
|
int cached;
|
||
|
|
int cache_val[MAX_CHANNELS];
|
||
|
|
u8 initialized;
|
||
|
|
u8 min_mute;
|
||
|
|
void *private_data;
|
||
|
|
};
|
||
|
|
|
||
|
|
int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
|
||
|
|
int ignore_error);
|
||
|
|
void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer);
|
||
|
|
|
||
|
|
void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer, int unitid);
|
||
|
|
|
||
|
|
int snd_usb_mixer_set_ctl_value(struct usb_mixer_elem_info *cval,
|
||
|
|
int request, int validx, int value_set);
|
||
|
|
|
||
|
|
int snd_usb_mixer_add_list(struct usb_mixer_elem_list *list,
|
||
|
|
struct snd_kcontrol *kctl,
|
||
|
|
bool is_std_info);
|
||
|
|
|
||
|
|
#define snd_usb_mixer_add_control(list, kctl) \
|
||
|
|
snd_usb_mixer_add_list(list, kctl, true)
|
||
|
|
|
||
|
|
void snd_usb_mixer_elem_init_std(struct usb_mixer_elem_list *list,
|
||
|
|
struct usb_mixer_interface *mixer,
|
||
|
|
int unitid);
|
||
|
|
|
||
|
|
int snd_usb_mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
|
||
|
|
unsigned int size, unsigned int __user *_tlv);
|
||
|
|
|
||
|
|
#ifdef CONFIG_PM
|
||
|
|
int snd_usb_mixer_suspend(struct usb_mixer_interface *mixer);
|
||
|
|
int snd_usb_mixer_resume(struct usb_mixer_interface *mixer, bool reset_resume);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
int snd_usb_set_cur_mix_value(struct usb_mixer_elem_info *cval, int channel,
|
||
|
|
int index, int value);
|
||
|
|
|
||
|
|
int snd_usb_get_cur_mix_value(struct usb_mixer_elem_info *cval,
|
||
|
|
int channel, int index, int *value);
|
||
|
|
|
||
|
|
extern void snd_usb_mixer_elem_free(struct snd_kcontrol *kctl);
|
||
|
|
|
||
|
|
#endif /* __USBMIXER_H */
|