forked from haraldwolff/avr-fw-modules
101 lines
1.5 KiB
C
101 lines
1.5 KiB
C
#pragma once
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#include <stdio.h>
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#include <rb2/regbus.h>
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#include <hwo/bits.h>
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#include <hwo/chksum.h>
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#include <util/list.h>
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/****
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Telegram auf Leitung:
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Byte Inhalt
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0 Magic
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1 request
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2 achse
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3 knoten
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4 register low
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5 register high
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(4x) (value)
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(2x) (chksum)
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****/
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#define SL_REQ_READ 0x01
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#define SL_REQ_WRITE 0x02
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#define SL_REQ_EVENT 0x04
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#define SL_REQ_FAIL 0x08
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#define SL_REQ_INT 0x10
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#define SL_REQ_FLOAT 0x20
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#define SL_REQ_ACK 0x40
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#define SL_MAGIC 0x66
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struct sl_header
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{
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uint8_t request;
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uint8_t achse;
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uint8_t knoten;
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uint16_t register_no;
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};
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struct servicelink_telegram
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{
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struct sl_header header;
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union bits32 value;
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avrChksum chksum;
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};
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typedef struct {
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union {
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uint8_t request;
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struct {
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uint8_t has_value:1; // <value> enthält daten
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uint8_t is_float:1; // <value> ist vom typ float
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uint8_t failed:1; // signalisiert einen fehlschlag (z.B. timeout)
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uint8_t timeout:1; // signalisiert ein timeout
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uint8_t extra_payload:4;// <extra_bytes> zusätzliche bytes folgen auf dieses telegram
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};
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};
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union {
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uint8_t addr;
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struct {
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uint8_t node:4;
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uint8_t ax:4;
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};
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};
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uint16_t register_no;
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union {
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int32_t i32;
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float f32;
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} value;
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} sl_v2_telegram_t;
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typedef struct {
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list_t list;
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systick_t timeout;
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sl_v2_telegram_t
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sl_telegram;
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rb2_request_t
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rb2_request;
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} sl_v2_telegram_list_t;
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void servicelink(FILE *stream);
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void servicelink2(void *_arg);
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int sl2_dbg_free_telegrams(void);
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