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      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 #ifndef __HDLC_IOCTL_H__
      3 #define __HDLC_IOCTL_H__
      4 
      5 
      6 #define GENERIC_HDLC_VERSION 4	/* For synchronization with sethdlc utility */
      7 
      8 #define CLOCK_DEFAULT   0	/* Default setting */
      9 #define CLOCK_EXT	1	/* External TX and RX clock - DTE */
     10 #define CLOCK_INT	2	/* Internal TX and RX clock - DCE */
     11 #define CLOCK_TXINT	3	/* Internal TX and external RX clock */
     12 #define CLOCK_TXFROMRX	4	/* TX clock derived from external RX clock */
     13 
     14 
     15 #define ENCODING_DEFAULT	0 /* Default setting */
     16 #define ENCODING_NRZ		1
     17 #define ENCODING_NRZI		2
     18 #define ENCODING_FM_MARK	3
     19 #define ENCODING_FM_SPACE	4
     20 #define ENCODING_MANCHESTER	5
     21 
     22 
     23 #define PARITY_DEFAULT		0 /* Default setting */
     24 #define PARITY_NONE		1 /* No parity */
     25 #define PARITY_CRC16_PR0	2 /* CRC16, initial value 0x0000 */
     26 #define PARITY_CRC16_PR1	3 /* CRC16, initial value 0xFFFF */
     27 #define PARITY_CRC16_PR0_CCITT	4 /* CRC16, initial 0x0000, ITU-T version */
     28 #define PARITY_CRC16_PR1_CCITT	5 /* CRC16, initial 0xFFFF, ITU-T version */
     29 #define PARITY_CRC32_PR0_CCITT	6 /* CRC32, initial value 0x00000000 */
     30 #define PARITY_CRC32_PR1_CCITT	7 /* CRC32, initial value 0xFFFFFFFF */
     31 
     32 #define LMI_DEFAULT		0 /* Default setting */
     33 #define LMI_NONE		1 /* No LMI, all PVCs are static */
     34 #define LMI_ANSI		2 /* ANSI Annex D */
     35 #define LMI_CCITT		3 /* ITU-T Annex A */
     36 #define LMI_CISCO		4 /* The "original" LMI, aka Gang of Four */
     37 
     38 #ifndef __ASSEMBLY__
     39 
     40 typedef struct {
     41 	unsigned int clock_rate; /* bits per second */
     42 	unsigned int clock_type; /* internal, external, TX-internal etc. */
     43 	unsigned short loopback;
     44 } sync_serial_settings;          /* V.35, V.24, X.21 */
     45 
     46 typedef struct {
     47 	unsigned int clock_rate; /* bits per second */
     48 	unsigned int clock_type; /* internal, external, TX-internal etc. */
     49 	unsigned short loopback;
     50 	unsigned int slot_map;
     51 } te1_settings;                  /* T1, E1 */
     52 
     53 typedef struct {
     54 	unsigned short encoding;
     55 	unsigned short parity;
     56 } raw_hdlc_proto;
     57 
     58 typedef struct {
     59 	unsigned int t391;
     60 	unsigned int t392;
     61 	unsigned int n391;
     62 	unsigned int n392;
     63 	unsigned int n393;
     64 	unsigned short lmi;
     65 	unsigned short dce; /* 1 for DCE (network side) operation */
     66 } fr_proto;
     67 
     68 typedef struct {
     69 	unsigned int dlci;
     70 } fr_proto_pvc;          /* for creating/deleting FR PVCs */
     71 
     72 typedef struct {
     73 	unsigned int dlci;
     74 	char master[IFNAMSIZ];	/* Name of master FRAD device */
     75 }fr_proto_pvc_info;		/* for returning PVC information only */
     76 
     77 typedef struct {
     78     unsigned int interval;
     79     unsigned int timeout;
     80 } cisco_proto;
     81 
     82 /* PPP doesn't need any info now - supply length = 0 to ioctl */
     83 
     84 #endif /* __ASSEMBLY__ */
     85 #endif /* __HDLC_IOCTL_H__ */
     86