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 typedef struct {
83 	unsigned short dce; /* 1 for DCE (network side) operation */
84 	unsigned int modulo; /* modulo (8 = basic / 128 = extended) */
85 	unsigned int window; /* frame window size */
86 	unsigned int t1; /* timeout t1 */
87 	unsigned int t2; /* timeout t2 */
88 	unsigned int n2; /* frame retry counter */
89 } x25_hdlc_proto;
90 
91 /* PPP doesn't need any info now - supply length = 0 to ioctl */
92 
93 #endif /* __ASSEMBLY__ */
94 #endif /* __HDLC_IOCTL_H__ */
95