127 lines
3.3 KiB
C
127 lines
3.3 KiB
C
|
|
/* kiss_frame.h */
|
|
|
|
#ifndef KISS_FRAME_H
|
|
#define KISS_FRAME_H
|
|
|
|
|
|
#include "audio.h" /* for struct audio_s */
|
|
|
|
|
|
/*
|
|
* The first byte of a KISS frame has:
|
|
* channel in upper nybble.
|
|
* command in lower nybble.
|
|
*/
|
|
|
|
#define KISS_CMD_DATA_FRAME 0
|
|
#define KISS_CMD_TXDELAY 1
|
|
#define KISS_CMD_PERSISTENCE 2
|
|
#define KISS_CMD_SLOTTIME 3
|
|
#define KISS_CMD_TXTAIL 4
|
|
#define KISS_CMD_FULLDUPLEX 5
|
|
#define KISS_CMD_SET_HARDWARE 6
|
|
#define XKISS_CMD_DATA 12 // Not supported. http://he.fi/pub/oh7lzb/bpq/multi-kiss.pdf
|
|
#define XKISS_CMD_POLL 14 // Not supported.
|
|
#define KISS_CMD_END_KISS 15
|
|
|
|
|
|
|
|
/*
|
|
* Special characters used by SLIP protocol.
|
|
*/
|
|
|
|
#define FEND 0xC0
|
|
#define FESC 0xDB
|
|
#define TFEND 0xDC
|
|
#define TFESC 0xDD
|
|
|
|
|
|
|
|
enum kiss_state_e {
|
|
KS_SEARCHING = 0, /* Looking for FEND to start KISS frame. */
|
|
/* Must be 0 so we can simply zero whole structure to initialize. */
|
|
KS_COLLECTING}; /* In process of collecting KISS frame. */
|
|
|
|
|
|
#define MAX_KISS_LEN 2048 /* Spec calls for at least 1024. */
|
|
/* Might want to make it longer to accommodate */
|
|
/* maximum packet length. */
|
|
|
|
#define MAX_NOISE_LEN 100
|
|
|
|
typedef struct kiss_frame_s {
|
|
|
|
enum kiss_state_e state;
|
|
|
|
unsigned char kiss_msg[MAX_KISS_LEN];
|
|
/* Leading FEND is optional. */
|
|
/* Contains escapes and ending FEND. */
|
|
int kiss_len;
|
|
|
|
unsigned char noise[MAX_NOISE_LEN];
|
|
int noise_len;
|
|
|
|
} kiss_frame_t;
|
|
|
|
|
|
// This is used only for TCPKISS but it put in kissnet.h,
|
|
// there would be a circular dependency between the two header files.
|
|
// Each KISS TCP port has its own status block.
|
|
|
|
struct kissport_status_s {
|
|
|
|
struct kissport_status_s *pnext; // To next in list.
|
|
|
|
volatile int arg2; // temp for passing second arg into
|
|
// kissnet_listen_thread
|
|
|
|
int tcp_port; // default 8001
|
|
|
|
int chan; // Radio channel for this tcp port.
|
|
// -1 for all.
|
|
|
|
// The default is a limit of 3 client applications at the same time.
|
|
// You can increase the limit by changing the line below.
|
|
// A larger number consumes more resources so don't go crazy by making it larger than needed.
|
|
// TODO: Should this be moved to direwolf.h so max number of audio devices
|
|
// client apps are in the same place?
|
|
|
|
#define MAX_NET_CLIENTS 3
|
|
|
|
int client_sock[MAX_NET_CLIENTS];
|
|
/* File descriptor for socket for */
|
|
/* communication with client application. */
|
|
/* Set to -1 if not connected. */
|
|
/* (Don't use SOCKET type because it is unsigned.) */
|
|
|
|
kiss_frame_t kf[MAX_NET_CLIENTS];
|
|
/* Accumulated KISS frame and state of decoder. */
|
|
};
|
|
|
|
|
|
|
|
#ifndef KISSUTIL
|
|
void kiss_frame_init (struct audio_s *pa);
|
|
#endif
|
|
|
|
int kiss_encapsulate (unsigned char *in, int ilen, unsigned char *out);
|
|
|
|
int kiss_unwrap (unsigned char *in, int ilen, unsigned char *out);
|
|
|
|
void kiss_rec_byte (kiss_frame_t *kf, unsigned char ch, int debug, struct kissport_status_s *kps, int client,
|
|
void (*sendfun)(int chan, int kiss_cmd, unsigned char *fbuf, int flen, struct kissport_status_s *onlykps, int onlyclient));
|
|
|
|
typedef enum fromto_e { FROM_CLIENT=0, TO_CLIENT=1 } fromto_t;
|
|
|
|
void kiss_process_msg (unsigned char *kiss_msg, int kiss_len, int debug, struct kissport_status_s *kps, int client,
|
|
void (*sendfun)(int chan, int kiss_cmd, unsigned char *fbuf, int flen, struct kissport_status_s *onlykps, int onlyclient));
|
|
|
|
void kiss_debug_print (fromto_t fromto, char *special, unsigned char *pmsg, int msg_len);
|
|
|
|
|
|
#endif // KISS_FRAME_H
|
|
|
|
|
|
/* end kiss_frame.h */
|