cregit-Linux how code gets into the kernel

Release 4.12 include/uapi/linux/hdlcdrv.h

/*
 * hdlcdrv.h  -- HDLC packet radio network driver.
 * The Linux soundcard driver for 1200 baud and 9600 baud packet radio
 * (C) 1996-1998 by Thomas Sailer, HB9JNX/AE4WA
 */

#ifndef _UAPI_HDLCDRV_H

#define _UAPI_HDLCDRV_H

/* -------------------------------------------------------------------- */
/*
 * structs for the IOCTL commands
 */


struct hdlcdrv_params {
	
int iobase;
	
int irq;
	
int dma;
	
int dma2;
	
int seriobase;
	
int pariobase;
	
int midiiobase;
};	


struct hdlcdrv_channel_params {
	
int tx_delay;  /* the transmitter keyup delay in 10ms units */
	
int tx_tail;   /* the transmitter keyoff delay in 10ms units */
	
int slottime;  /* the slottime in 10ms; usually 10 = 100ms */
	
int ppersist;  /* the p-persistence 0..255 */
	
int fulldup;   /* some driver do not support full duplex, setting */
	               /* this just makes them send even if DCD is on */
};	


struct hdlcdrv_old_channel_state {
  	
int ptt;
  	
int dcd;
  	
int ptt_keyed;
};


struct hdlcdrv_channel_state {
 	
int ptt;
 	
int dcd;
 	
int ptt_keyed;
 	
unsigned long tx_packets;
 	
unsigned long tx_errors;
 	
unsigned long rx_packets;
 	
unsigned long rx_errors;
};


struct hdlcdrv_ioctl {
	
int cmd;
	union {
		
struct hdlcdrv_params mp;
		
struct hdlcdrv_channel_params cp;
		
struct hdlcdrv_channel_state cs;
		
struct hdlcdrv_old_channel_state ocs;
		
unsigned int calibrate;
		
unsigned char bits;
		
char modename[128];
		
char drivername[32];
	
} data;
};

/* -------------------------------------------------------------------- */

/*
 * ioctl values
 */

#define HDLCDRVCTL_GETMODEMPAR       0

#define HDLCDRVCTL_SETMODEMPAR       1

#define HDLCDRVCTL_MODEMPARMASK      2  
/* not handled by hdlcdrv */

#define HDLCDRVCTL_GETCHANNELPAR    10

#define HDLCDRVCTL_SETCHANNELPAR    11

#define HDLCDRVCTL_OLDGETSTAT       20

#define HDLCDRVCTL_CALIBRATE        21

#define HDLCDRVCTL_GETSTAT          22

/*
 * these are mainly for debugging purposes
 */

#define HDLCDRVCTL_GETSAMPLES       30

#define HDLCDRVCTL_GETBITS          31

/*
 * not handled by hdlcdrv, but by its depending drivers
 */

#define HDLCDRVCTL_GETMODE          40

#define HDLCDRVCTL_SETMODE          41

#define HDLCDRVCTL_MODELIST         42

#define HDLCDRVCTL_DRIVERNAME       43

/*
 * mask of needed modem parameters, returned by HDLCDRVCTL_MODEMPARMASK
 */

#define HDLCDRV_PARMASK_IOBASE      (1<<0)

#define HDLCDRV_PARMASK_IRQ         (1<<1)

#define HDLCDRV_PARMASK_DMA         (1<<2)

#define HDLCDRV_PARMASK_DMA2        (1<<3)

#define HDLCDRV_PARMASK_SERIOBASE   (1<<4)

#define HDLCDRV_PARMASK_PARIOBASE   (1<<5)

#define HDLCDRV_PARMASK_MIDIIOBASE  (1<<6)

/* -------------------------------------------------------------------- */


/* -------------------------------------------------------------------- */

#endif /* _UAPI_HDLCDRV_H */

/* -------------------------------------------------------------------- */

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