widget.h

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#ifndef __WIDGET_H__
#define __WIDGET_H__
 
#include <stdint.h>
 
#define HDA_WIDGET_TYPE_LINE_OUT  0x0
#define HDA_WIDGET_TYPE_DAC   0x1
#define HDA_WIDGET_TYPE_HP_OUT    0x2
#define HDA_WIDGET_TYPE_MIXER 0x3
#define HDA_WIDGET_TYPE_PIN 0x4
 
#pragma pack(push,1)
typedef struct _widget_ {
    uint8_t type;
    uint32_t nid;
    uint32_t codec;
    uint32_t parent_pin_nid;
    uint32_t parent_mixer_nid;
    bool amp_cap;
    bool mute;
    int conn_list_length;
    bool eapd_btl;
    bool power_cap;
    uint32_t pcm_rates;
    uint32_t pcm_format;
    _widget_ *next;
    _widget_ *prev;
}HDAWidget;
#pragma pack(pop)
 
 
#pragma pack(push,1)
typedef struct _audio_path_ {
    HDAWidget *root;
    HDAWidget *last;
    _audio_path_ *next;
    _audio_path_* prev;
}HDAAudioPath;
#pragma pack(pop)
 
 
/*
* HDACreateWidget -- creates a hd audio widget
*/
extern HDAWidget * HDACreateWidget();
 
/* 
 * HDACreateAudioPath -- creates an audio path
 */
extern HDAAudioPath* HDACreateAudioPath();
 
/*
 * WidgetSetupPin -- setup a widget pin
 */
extern void HDAWidgetSetupPin(int codec, int nid);
 
extern void HDAWidgetInit(int codec, int nid);
#endif