]>
Commit | Line | Data |
---|---|---|
725e789f BH |
1 | #ifndef _HVSI_H |
2 | #define _HVSI_H | |
3 | ||
4 | #define VS_DATA_PACKET_HEADER 0xff | |
5 | #define VS_CONTROL_PACKET_HEADER 0xfe | |
6 | #define VS_QUERY_PACKET_HEADER 0xfd | |
7 | #define VS_QUERY_RESPONSE_PACKET_HEADER 0xfc | |
8 | ||
9 | /* control verbs */ | |
10 | #define VSV_SET_MODEM_CTL 1 /* to service processor only */ | |
11 | #define VSV_MODEM_CTL_UPDATE 2 /* from service processor only */ | |
12 | #define VSV_CLOSE_PROTOCOL 3 | |
13 | ||
14 | /* query verbs */ | |
15 | #define VSV_SEND_VERSION_NUMBER 1 | |
16 | #define VSV_SEND_MODEM_CTL_STATUS 2 | |
17 | ||
18 | /* yes, these masks are not consecutive. */ | |
19 | #define HVSI_TSDTR 0x01 | |
20 | #define HVSI_TSCD 0x20 | |
21 | ||
22 | #define HVSI_MAX_OUTGOING_DATA 12 | |
23 | #define HVSI_VERSION 1 | |
24 | ||
25 | struct hvsi_header { | |
26 | uint8_t type; | |
27 | uint8_t len; | |
99fc1d91 | 28 | __be16 seqno; |
725e789f BH |
29 | } __attribute__((packed)); |
30 | ||
31 | struct hvsi_data { | |
048bee77 | 32 | struct hvsi_header hdr; |
725e789f BH |
33 | uint8_t data[HVSI_MAX_OUTGOING_DATA]; |
34 | } __attribute__((packed)); | |
35 | ||
36 | struct hvsi_control { | |
048bee77 | 37 | struct hvsi_header hdr; |
99fc1d91 | 38 | __be16 verb; |
725e789f | 39 | /* optional depending on verb: */ |
99fc1d91 BH |
40 | __be32 word; |
41 | __be32 mask; | |
725e789f BH |
42 | } __attribute__((packed)); |
43 | ||
44 | struct hvsi_query { | |
048bee77 | 45 | struct hvsi_header hdr; |
99fc1d91 | 46 | __be16 verb; |
725e789f BH |
47 | } __attribute__((packed)); |
48 | ||
49 | struct hvsi_query_response { | |
048bee77 | 50 | struct hvsi_header hdr; |
99fc1d91 BH |
51 | __be16 verb; |
52 | __be16 query_seqno; | |
725e789f BH |
53 | union { |
54 | uint8_t version; | |
99fc1d91 | 55 | __be32 mctrl_word; |
725e789f BH |
56 | } u; |
57 | } __attribute__((packed)); | |
58 | ||
17bdc6c0 BH |
59 | /* hvsi lib struct definitions */ |
60 | #define HVSI_INBUF_SIZE 255 | |
61 | struct tty_struct; | |
62 | struct hvsi_priv { | |
63 | unsigned int inbuf_len; /* data in input buffer */ | |
64 | unsigned char inbuf[HVSI_INBUF_SIZE]; | |
65 | unsigned int inbuf_cur; /* Cursor in input buffer */ | |
66 | unsigned int inbuf_pktlen; /* packet lenght from cursor */ | |
67 | atomic_t seqno; /* packet sequence number */ | |
68 | unsigned int opened:1; /* driver opened */ | |
69 | unsigned int established:1; /* protocol established */ | |
70 | unsigned int is_console:1; /* used as a kernel console device */ | |
71 | unsigned int mctrl_update:1; /* modem control updated */ | |
72 | unsigned short mctrl; /* modem control */ | |
73 | struct tty_struct *tty; /* tty structure */ | |
74 | int (*get_chars)(uint32_t termno, char *buf, int count); | |
75 | int (*put_chars)(uint32_t termno, const char *buf, int count); | |
76 | uint32_t termno; | |
77 | }; | |
78 | ||
79 | /* hvsi lib functions */ | |
80 | struct hvc_struct; | |
87fa35dd BH |
81 | extern void hvsilib_init(struct hvsi_priv *pv, |
82 | int (*get_chars)(uint32_t termno, char *buf, int count), | |
83 | int (*put_chars)(uint32_t termno, const char *buf, | |
84 | int count), | |
85 | int termno, int is_console); | |
86 | extern int hvsilib_open(struct hvsi_priv *pv, struct hvc_struct *hp); | |
87 | extern void hvsilib_close(struct hvsi_priv *pv, struct hvc_struct *hp); | |
88 | extern int hvsilib_read_mctrl(struct hvsi_priv *pv); | |
89 | extern int hvsilib_write_mctrl(struct hvsi_priv *pv, int dtr); | |
90 | extern void hvsilib_establish(struct hvsi_priv *pv); | |
91 | extern int hvsilib_get_chars(struct hvsi_priv *pv, char *buf, int count); | |
92 | extern int hvsilib_put_chars(struct hvsi_priv *pv, const char *buf, int count); | |
725e789f BH |
93 | |
94 | #endif /* _HVSI_H */ |