160 lines
3.8 KiB
C
Executable File
160 lines
3.8 KiB
C
Executable File
/*
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* Author: klaute -Kai Lauterbach - @kailauterbach - me@klaute.de
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* Date: 08/2016
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* License: GPLv3
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*/
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/*****************************************************************************/
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#include "command_ctrl.h"
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#include "command_config.h"
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// include user specific command control configuration and function definition
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#include "command_config.h"
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#include "command_functions.c"
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/*****************************************************************************/
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uint8_t cc_state = CC_STATE_READ_SOM1;
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uint8_t cc_cmd_to_call = CC_CMD_NO_CMD;
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uint8_t cc_cmd_received_correct = MSG_INCOMPLETE;
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uint8_t cc_cmd_data_read_cnt = 0;
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/*****************************************************************************/
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void cc_init()
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{
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cc_state = CC_STATE_READ_SOM1;
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cc_cmd_to_call = CC_CMD_NO_CMD;
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cc_cmd_data_read_cnt = 0;
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cc_cmd_received_correct = MSG_INCOMPLETE;
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}
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/*****************************************************************************/
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void cc_abort()
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{
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// send abort message, then init
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char* tmp = " ";
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sprintf(tmp, "%c%c%c%c%c", MSG_SOM1, MSG_SOM2,
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MSG_TYPE_ANSWER_NOK,
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MSG_EOM1, MSG_EOM2);
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USB_serialStreamWriteC(tmp, strlen(tmp));
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cc_init();
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}
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/*****************************************************************************/
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void cc_processData(uint8_t c)
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{
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switch (cc_state)
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{
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//*********************************//
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case CC_STATE_READ_SOM1:;
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if (c == MSG_SOM1)
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cc_state = CC_STATE_READ_SOM2;
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else
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cc_abort();
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break;
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//*********************************//
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case CC_STATE_READ_SOM2:;
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if (c == MSG_SOM2)
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cc_state = CC_STATE_READ_CMD;
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else
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cc_abort();
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break;
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//*********************************//
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case CC_STATE_READ_CMD:;
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for (uint8_t i = 0; i < sizeof(cc_commands)/sizeof(uint8_t); i++)
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{
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if (cc_commands[i] == c)
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{
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if (cc_cmd_data_to_read[i] > 0)
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cc_state = CC_STATE_READ_DATA;
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else
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cc_state = CC_STATE_READ_EOM1;
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cc_cmd_to_call = i; // remember the index of command to call
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break; // break the loop
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}
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}
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break;
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//*********************************//
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case CC_STATE_READ_DATA:;
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// write the variable c to the input buffer
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cc_read_data[cc_cmd_data_read_cnt] = c;
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if (cc_cmd_data_read_cnt >= cc_cmd_data_to_read[cc_cmd_to_call]-1)
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{
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cc_state = CC_STATE_READ_EOM1;
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}
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cc_cmd_data_read_cnt++;
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break;
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//*********************************//
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case CC_STATE_READ_EOM1:;
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if (c == MSG_EOM1)
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cc_state = CC_STATE_READ_EOM2;
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else
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cc_abort();
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break;
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//*********************************//
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case CC_STATE_READ_EOM2:;
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if (c == MSG_EOM2)
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{
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cc_cmd_received_correct = MSG_COMPLETE;
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} else
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cc_abort();
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break;
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default:
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cc_abort();
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}
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//*********************************//
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if (cc_cmd_received_correct == MSG_COMPLETE)
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{
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// call the function using the received data
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(*cc_cmd_functions[cc_cmd_to_call])();
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// clear the read buffer
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cc_clearReadDataBuffer();
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cc_init();
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}
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}
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/*****************************************************************************/
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void cc_clearReadDataBuffer()
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{
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for (uint8_t i = 0; i < CC_READ_DATA_MAX; i++)
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{
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cc_read_data[i] = 0x00;
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}
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}
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/*****************************************************************************/
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uint32_t read32BitFromBuffer(uint8_t pos)
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{
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uint32_t tmp = (uint32_t)cc_read_data[pos ] << 24;
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tmp += (uint32_t)cc_read_data[pos + 1] << 16;
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tmp += (uint32_t)cc_read_data[pos + 2] << 8;
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tmp += (uint32_t)cc_read_data[pos + 3];
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return tmp;
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}
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/*****************************************************************************/
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