projects / deliverable / linux.git / blame
| 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; | |
| 28 | uint16_t seqno; | |
| 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; |
| 725e789f BH |
38 | uint16_t verb; |
| 39 | /* optional depending on verb: */ | |
| 40 | uint32_t word; | |
| 41 | uint32_t mask; | |
| 42 | } __attribute__((packed)); | |
| 43 | ||
| 44 | struct hvsi_query { | |
| 048bee77 | 45 | struct hvsi_header hdr; |
| 725e789f BH |
46 | uint16_t verb; |
| 47 | } __attribute__((packed)); | |
| 48 | ||
| 49 | struct hvsi_query_response { | |
| 048bee77 | 50 | struct hvsi_header hdr; |
| 725e789f BH |
51 | uint16_t verb; |
| 52 | uint16_t query_seqno; | |
| 53 | union { | |
| 54 | uint8_t version; | |
| 55 | uint32_t mctrl_word; | |
| 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 */ |