#ifndef __USBMIXER_H #define __USBMIXER_H #include 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]; }; #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; usb_mixer_elem_dump_func_t dump; usb_mixer_elem_resume_func_t resume; }; 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; 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_control(struct usb_mixer_elem_list *list, struct snd_kcontrol *kctl); 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 */ '/>

path: root/tools/testing/radix-tree/regression2.c

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