Eli Hughes
2014 Freescale / Hack A Day Make It Challenge FRDM-K64 Internet of "Thing"
Diff: Terminal.cpp
- Revision:
- 0:423d5729e94e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Terminal.cpp Thu Apr 10 21:14:23 2014 +0000
@@ -0,0 +1,340 @@
+/*
+
+--------------------------------------------
+| |
+| .... |
+| 7OO$?I78. |
+| .?8++++7+II?D. |
+| .?O++=I++II+?= |
+| .IO++?7==I??$. |
+| .8++=$===?+I$ |
+| ?+++===+===+ |
+| ???=+I++==+? |
+| .??++====+==++ |
+| ?+++==========~ |
+| $+++==========+= |
+| =?+===+==+I======== |
+| ..++======~~~~========? |
+| .$?I??+=~~===~~~===~===++. |
+| .+==.+=~~~=~==~~~~==~~=~==+? |
+| ?===I+====~~=~~~=~~=====~~~=?. |
+| .=~~~+==~==..~~~~~~= ~~~~=7= |
+| +=~~?+~~=. ==~~~~=. ~~~~=?. |
+| =~~~=~~~ ?===~~+. ~~~~+ |
+| +~~:+~~= =~~==. =~~+. |
+| ~:~ =~~= =~~~= ~=== |
+| I=~~ ,=~~= ,. |
+| ~~. ,==== |
+| ==== |
+| =~~. |
+| |
+|------------------------------------------|
+| Internet Of Thing |
+| Eli Hughes |
+| Freescale / Hack-a-day Make-It-Challenge |
+| FTF 2014 - Dallas, Tx |
+|------------------------------------------|
+
+*/
+#include "Terminal.h"
+#include "Types.h"
+#include "Queue.h"
+#include <string.h>
+#include <stdint.h>
+#include "System.h"
+
+//*****************************************************************
+//Terminal Configuration
+//*****************************************************************
+
+#define MAX_TERMINAL_LINE_CHARS 64
+#define MAX_TERMINAL_CMD_CHARS 32
+
+ByteQueue TERMINAL_OUTPUT_QUEUE;
+ByteQueue TERMINAL_INPUT_QUEUE;
+
+#define TERMINAL_QUEUE_SIZE 2048
+
+uint8_t TERMINAL_OUTPUT_QUEUE_Storage[TERMINAL_QUEUE_SIZE];
+uint8_t TERMINAL_INPUT_QUEUE_Storage[TERMINAL_QUEUE_SIZE];
+
+typedef void (*TerminalCallback)(char *);
+
+
+typedef struct
+{
+ const char *CommandString;
+ TerminalCallback Callback;
+ const char *HelpString;
+
+} TerminalCallbackRecord;
+
+//Callback function prototypes
+void TerminalCmd_Help(char *arg);
+void TerminalCmd_Go(char *arg);
+void TerminalCmd_SpinCW(char *arg);
+void TerminalCmd_SpinCCW(char *arg);
+void TerminalCmd_Stop(char *arg);
+
+void TerminalCmd_Reboot(char *arg);
+void TerminalCmd_Back(char *arg);
+
+//Populate this array with the callback functions and their terminal command string
+TerminalCallbackRecord MyTerminalCallbackRecords[] ={ {"help",TerminalCmd_Help,"Lists available commands"},
+ {"thing_go",TerminalCmd_Go," Tells the thing to go forward"},
+ {"thing_cw",TerminalCmd_SpinCW," Tells the thing to spin clock-wise"},
+ {"thing_ccw",TerminalCmd_SpinCCW," Tells the thing to spin counter clockwise"},
+ {"thing_stop",TerminalCmd_Stop,"Tells the thing to stop"},
+ {"thing_back",TerminalCmd_Back,"Tells the thing to go"},
+ };
+
+//*****************************************************************
+//Plumbing.....
+//*****************************************************************
+
+#define NUM_TERMINAL_COMMANDS (sizeof(MyTerminalCallbackRecords)/sizeof(TerminalCallbackRecord))
+
+char TerminalLineBuf[MAX_TERMINAL_LINE_CHARS];
+uint8_t TerminalPos;
+char TerminalCmdBuf[MAX_TERMINAL_CMD_CHARS+1];
+char TerminalArgs[MAX_TERMINAL_LINE_CHARS-MAX_TERMINAL_CMD_CHARS];
+uint8_t NextCharIn;
+uint8_t CmdFound;
+
+void TerminalBootMsg()
+{
+TERMINAL_PRINTF("-------------------------------------------- \r\n");
+TERMINAL_PRINTF("| |\r\n");
+TERMINAL_PRINTF("| .... | \r\n");
+TERMINAL_PRINTF("| 7OO$?I78. | \r\n");
+TERMINAL_PRINTF("| .?8++++7+II?D. | \r\n");
+TERMINAL_PRINTF("| .?O++=I++II+?= | \r\n");
+TERMINAL_PRINTF("| .IO++?7==I??$. | \r\n");
+TERMINAL_PRINTF("| .8++=$===?+I$ | \r\n");
+TERMINAL_PRINTF("| ?+++===+===+ | \r\n");
+TERMINAL_PRINTF("| ???=+I++==+? | \r\n");
+TERMINAL_PRINTF("| .??++====+==++ | \r\n");
+TERMINAL_PRINTF("| ?+++==========~ | \r\n");
+TERMINAL_PRINTF("| $+++==========+= | \r\n");
+TERMINAL_PRINTF("| =?+===+==+I======== | \r\n");
+TERMINAL_PRINTF("| ..++======~~~~========? | \r\n");
+TERMINAL_PRINTF("| .$?I??+=~~===~~~===~===++. | \r\n");
+TERMINAL_PRINTF("| .+==.+=~~~=~==~~~~==~~=~==+? | \r\n");
+TERMINAL_PRINTF("| ?===I+====~~=~~~=~~=====~~~=?. | \r\n");
+TERMINAL_PRINTF("| .=~~~+==~==..~~~~~~= ~~~~=7= | \r\n");
+TERMINAL_PRINTF("| +=~~?+~~=. ==~~~~=. ~~~~=?. | \r\n");
+TERMINAL_PRINTF("| =~~~=~~~ ?===~~+. ~~~~+ | \r\n");
+TERMINAL_PRINTF("| +~~:+~~= =~~==. =~~+. | \r\n");
+TERMINAL_PRINTF("| ~:~ =~~= =~~~= ~=== | \r\n");
+TERMINAL_PRINTF("| I=~~ ,=~~= ,. | \r\n");
+TERMINAL_PRINTF("| ~~. ,==== | \r\n");
+TERMINAL_PRINTF("| ==== | \r\n");
+TERMINAL_PRINTF("| =~~. | \r\n");
+TERMINAL_PRINTF("| |\r\n");
+TERMINAL_PRINTF("|------------------------------------------|\r\n");
+TERMINAL_PRINTF("| Internet Of Thing |\r\n");
+TERMINAL_PRINTF("| Eli Hughes |\r\n");
+TERMINAL_PRINTF("| Freescale / Hack-a-day Make-It-Challenge |\r\n");
+TERMINAL_PRINTF("| FTF 2014 - Dallas, Tx |\r\n");
+TERMINAL_PRINTF("|------------------------------------------|\r\n\r\n>");
+}
+
+void TFC_InitTerminal()
+{
+ TerminalPos = 0;
+ CmdFound = 0;
+
+ InitByteQueue(&TERMINAL_OUTPUT_QUEUE,TERMINAL_QUEUE_SIZE,&TERMINAL_OUTPUT_QUEUE_Storage[0]);
+ InitByteQueue(&TERMINAL_INPUT_QUEUE,TERMINAL_QUEUE_SIZE,&TERMINAL_INPUT_QUEUE_Storage[0]);
+
+
+ TerminalBootMsg();
+}
+
+void TerminalCmd_Help(char *arg)
+{
+ uint8_t i;
+
+ TERMINAL_PRINTF("\r\n\r\nCommand List:\r\n");
+ TERMINAL_PRINTF("----------------------\r\n");
+
+ for(i=0;i<NUM_TERMINAL_COMMANDS;i++)
+ {
+ TERMINAL_PRINTF("%s ----> %s\r\n",MyTerminalCallbackRecords[i].CommandString,MyTerminalCallbackRecords[i].HelpString);
+ }
+
+ TERMINAL_PRINTF("\r\n\r\n");
+}
+
+
+void TerminalCmd_Go(char *arg)
+{
+ SPIN_CCW = 0;
+ SPIN_CW = 0;
+ GO_FORWARD = 1;
+ GO_REVERSE = 0;
+
+}
+
+void TerminalCmd_Back(char *arg)
+{
+ SPIN_CCW = 0;
+ SPIN_CW = 0;
+ GO_FORWARD = 0;
+ GO_REVERSE = 1;
+
+}
+
+void TerminalCmd_SpinCW(char *arg)
+{
+ SPIN_CCW = 0;
+ SPIN_CW = 1;
+ GO_FORWARD = 0;
+ GO_REVERSE = 0;
+
+}
+void TerminalCmd_SpinCCW(char *arg)
+{
+ SPIN_CCW = 1;
+ SPIN_CW = 0;
+ GO_FORWARD = 0;
+ GO_REVERSE = 0;
+}
+
+void TerminalCmd_Stop(char *arg)
+{
+
+ SPIN_CCW = 0;
+ SPIN_CW = 0;
+ GO_FORWARD = 0;
+ GO_REVERSE = 0;
+
+}
+
+
+void TerminalCmd_Reboot(char *arg)
+{
+ TerminalBootMsg();
+}
+
+
+void TFC_ProcessTerminal()
+{
+ uint8_t i,j;
+ uint8_t ArgsFound;
+
+ if(TERMINAL_READABLE)
+ {
+ NextCharIn = TERMINAL_GETC;
+
+ switch(NextCharIn)
+ {
+ case '\r':
+
+ TerminalLineBuf[TerminalPos++] = 0x0;
+ TERMINAL_PUTC(NextCharIn);
+
+ if(TerminalPos > 1)
+ {
+ //find the command
+ i=0;
+ while(TerminalLineBuf[i]>0x20 && TerminalLineBuf[i]<0x7f)
+ {
+ TerminalCmdBuf[i] = TerminalLineBuf[i];
+ i++;
+
+ if(i==MAX_TERMINAL_CMD_CHARS)
+ {
+ break;
+ }
+ }
+
+ TerminalCmdBuf[i] = 0;
+ TerminalCmdBuf[i+1] = 0;
+
+
+ ArgsFound = TRUE;
+ memset(TerminalArgs,0x00,sizeof(TerminalArgs));
+ //scan for num terminator or next non whitespace
+ while(TerminalLineBuf[i]<=0x20 && (i<MAX_TERMINAL_LINE_CHARS))
+ {
+ if(TerminalLineBuf[i] == 0x00)
+ {
+
+ //if we find a NULL terminator before a non whitespace character they flag for no arguments
+ ArgsFound = FALSE;
+ break;
+ }
+ i++;
+ }
+
+ if(ArgsFound == TRUE)
+ {
+ strcpy(TerminalArgs,&TerminalLineBuf[i]);
+
+ //trim trailing whitespace
+ i = sizeof(TerminalArgs)-1;
+
+ while((TerminalArgs[i]<0x21) && (i>0))
+ {
+ TerminalArgs[i]= 0x00;
+ i--;
+ }
+ }
+
+ CmdFound = FALSE;
+ for(j=0;j<NUM_TERMINAL_COMMANDS;j++)
+ {
+ if(strcmp(TerminalCmdBuf,MyTerminalCallbackRecords[j].CommandString) == 0)
+ {
+ TERMINAL_PRINTF("\r\n");
+ if(MyTerminalCallbackRecords[j].Callback != NULL)
+ MyTerminalCallbackRecords[j].Callback(TerminalArgs);
+
+ CmdFound = TRUE;
+ break;
+ }
+ }
+ if(CmdFound == FALSE)
+ {
+ TERMINAL_PRINTF("\r\n%s command not recognized.\r\n\r\n",TerminalCmdBuf);
+ TerminalCmd_Help("no arg");
+
+ }
+ }
+ TERMINAL_PRINTF("\r\n>");
+ TerminalPos = 0;
+
+ break;
+
+ case '\b':
+ if(TerminalPos > 0)
+ {
+ TerminalPos--;
+ TERMINAL_PUTC(NextCharIn);
+ }
+ break;
+
+ default:
+
+ if(TerminalPos == 0 && NextCharIn == 0x020)
+ {
+ //Do nothing if space bar is pressed at beginning of line
+ }
+ else if(NextCharIn >= 0x20 && NextCharIn<0x7F)
+ {
+
+ if(TerminalPos < MAX_TERMINAL_LINE_CHARS-1)
+ {
+ TerminalLineBuf[TerminalPos++] = NextCharIn;
+ TERMINAL_PUTC(NextCharIn);
+ }
+ }
+
+ break;
+
+ }
+ }
+
+}
+