1 /* Copyright (C) 2014 by Jacob Alexander
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to deal
5 * in the Software without restriction, including without limitation the rights
6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 * copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 // ----- Includes -----
28 #include <buildvars.h>
35 // ----- Variables -----
37 // Basic command dictionary
38 CLIDictItem basicCLIDict[] = {
39 { "cliDebug", "Enables/Disables hex output of the most recent cli input.", cliFunc_cliDebug },
40 { "help", "You're looking at it :P", cliFunc_help },
41 { "led", "Enables/Disables indicator LED. Try a couple times just in case the LED is in an odd state.\r\n\t\t\033[33mWarning\033[0m: May adversely affect some modules...", cliFunc_led },
42 { "reload", "Signals microcontroller to reflash/reload.", cliFunc_reload },
43 { "reset", "Resets the terminal back to initial settings.", cliFunc_reset },
44 { "restart", "Sends a software restart, should be similar to powering on the device.", cliFunc_restart },
45 { "version", "Version information about this firmware.", cliFunc_version },
46 { 0, 0, 0 } // Null entry for dictionary end
51 // ----- Functions -----
55 print("\033[2K"); // Erases the current line
60 inline void init_cli()
62 // Reset the Line Buffer
63 CLILineBufferCurrent = 0;
68 // Register first dictionary
69 CLIDictionariesUsed = 0;
70 registerDictionary_cli( basicCLIDict );
72 // Initialize main LED
76 // Hex debug mode is off by default
80 // Query the serial input buffer for any new characters
83 // Current buffer position
84 uint8_t prev_buf_pos = CLILineBufferCurrent;
86 // Process each character while available
90 // No more characters to process
91 result = usb_serial_getchar(); // Retrieve from serial module // TODO Make USB agnostic
95 char cur_char = (char)result;
97 // Make sure buffer isn't full
98 if ( CLILineBufferCurrent >= CLILineBufferMaxSize )
101 erro_print("Serial line buffer is full, dropping character and resetting...");
104 CLILineBufferCurrent = 0;
112 // Place into line buffer
113 CLILineBuffer[CLILineBufferCurrent++] = cur_char;
116 // Display Hex Key Input if enabled
117 if ( CLIHexDebugMode && CLILineBufferCurrent > prev_buf_pos )
119 print("\033[s\r\n"); // Save cursor position, and move to the next line
120 print("\033[2K"); // Erases the current line
122 uint8_t pos = prev_buf_pos;
123 while ( CLILineBufferCurrent > pos )
125 printHex( CLILineBuffer[pos++] );
129 print("\033[u"); // Restore cursor position
132 // If buffer has changed, output to screen while there are still characters in the buffer not displayed
133 while ( CLILineBufferCurrent > prev_buf_pos )
135 // Check for control characters
136 switch ( CLILineBuffer[prev_buf_pos] )
139 CLILineBufferCurrent--; // Remove the Enter
141 // Process the current line buffer
145 CLILineBufferCurrent = 0;
147 // Reset the prompt after processing has finished
151 // XXX There is a potential bug here when resetting the buffer (losing valid keypresses)
152 // Doesn't look like it will happen *that* often, so not handling it for now -HaaTa
156 // Tab completion for the current command
161 // Check for escape sequence
166 case 0x7F: // Backspace
167 // TODO - Does not handle case for arrow editing (arrows disabled atm)
168 CLILineBufferCurrent--; // Remove the backspace
170 // If there are characters in the buffer
171 if ( CLILineBufferCurrent > 0 )
173 // Remove character from current position in the line buffer
174 CLILineBufferCurrent--;
176 // Remove character from tty
183 // Place a null on the end (to use with string print)
184 CLILineBuffer[CLILineBufferCurrent] = '\0';
186 // Output buffer to screen
187 dPrint( &CLILineBuffer[prev_buf_pos] );
197 // Takes a string, returns two pointers
198 // One to the first non-space character
199 // The second to the next argument (first NULL if there isn't an argument). delimited by a space
200 // Places a NULL at the first space after the first argument
201 inline void argumentIsolation_cli( char* string, char** first, char** second )
203 // Mark out the first argument
204 // This is done by finding the first space after a list of non-spaces and setting it NULL
205 char* cmdPtr = string - 1;
206 while ( *++cmdPtr == ' ' ); // Skips leading spaces, and points to first character of cmd
208 // Locates first space delimiter
209 char* argPtr = cmdPtr + 1;
210 while ( *argPtr != ' ' && *argPtr != '\0' )
213 // Point to the first character of args or a NULL (no args) and set the space delimiter as a NULL
214 (++argPtr)[-1] = '\0';
216 // Set return variables
221 // Scans the CLILineBuffer for any valid commands
222 void commandLookup_cli()
224 // Ignore command if buffer is 0 length
225 if ( CLILineBufferCurrent == 0 )
228 // Set the last+1 character of the buffer to NULL for string processing
229 CLILineBuffer[CLILineBufferCurrent] = '\0';
231 // Retrieve pointers to command and beginning of arguments
232 // Places a NULL at the first space after the command
235 argumentIsolation_cli( CLILineBuffer, &cmdPtr, &argPtr );
237 // Scan array of dictionaries for a valid command match
238 for ( uint8_t dict = 0; dict < CLIDictionariesUsed; dict++ )
240 // Parse each cmd until a null command entry is found, or an argument match
241 for ( uint8_t cmd = 0; CLIDict[dict][cmd].name != 0; cmd++ )
243 // Compare the first argument and each command entry
244 if ( eqStr( cmdPtr, CLIDict[dict][cmd].name ) )
246 // Run the specified command function pointer
247 // argPtr is already pointing at the first character of the arguments
248 (*CLIDict[dict][cmd].function)( argPtr );
255 // No match for the command...
257 erro_dPrint("\"", CLILineBuffer, "\" is not a valid command...type \033[35mhelp\033[0m");
260 // Registers a command dictionary with the CLI
261 inline void registerDictionary_cli( CLIDictItem *cmdDict )
263 // Make sure this max limit of dictionaries hasn't been reached
264 if ( CLIDictionariesUsed >= CLIMaxDictionaries )
266 erro_print("Max number of dictionaries defined already...");
271 CLIDict[CLIDictionariesUsed++] = cmdDict;
276 // ----- CLI Command Functions -----
278 void cliFunc_cliDebug( char* args )
280 // Toggle Hex Debug Mode
281 if ( CLIHexDebugMode )
284 info_print("Hex debug mode disabled...");
290 info_print("Hex debug mode enabled...");
295 void cliFunc_help( char* args )
297 // Scan array of dictionaries and print every description
298 // (no alphabetical here, too much processing/memory to sort...)
299 for ( uint8_t dict = 0; dict < CLIDictionariesUsed; dict++ )
301 print( NL "\033[1;32mCOMMAND SET\033[0m " );
302 printInt8( dict + 1 );
305 // Parse each cmd/description until a null command entry is found
306 for ( uint8_t cmd = 0; CLIDict[dict][cmd].name != 0; cmd++ )
308 dPrintStrs(" \033[35m", CLIDict[dict][cmd].name, "\033[0m");
310 // Determine number of spaces to tab by the length of the command and TabAlign
311 uint8_t padLength = CLIEntryTabAlign - lenStr( CLIDict[dict][cmd].name );
312 while ( padLength-- > 0 )
315 dPrintStrNL( CLIDict[dict][cmd].description );
320 void cliFunc_led( char* args )
322 CLILEDState ^= 1 << 1; // Toggle between 0 and 1
323 errorLED( CLILEDState ); // Enable/Disable error LED
326 void cliFunc_reload( char* args )
328 // Request to output module to be set into firmware reload mode
329 output_firmwareReload();
332 void cliFunc_reset( char* args )
334 print("\033c"); // Resets the terminal
337 void cliFunc_restart( char* args )
339 // Trigger an overall software reset
343 void cliFunc_version( char* args )
346 print( " \033[1mRevision:\033[0m " CLI_Revision NL );
347 print( " \033[1mBranch:\033[0m " CLI_Branch NL );
348 print( " \033[1mTree Status:\033[0m " CLI_ModifiedStatus NL );
349 print( " \033[1mRepo Origin:\033[0m " CLI_RepoOrigin NL );
350 print( " \033[1mCommit Date:\033[0m " CLI_CommitDate NL );
351 print( " \033[1mCommit Author:\033[0m " CLI_CommitAuthor NL );
352 print( " \033[1mBuild Date:\033[0m " CLI_BuildDate NL );
353 print( " \033[1mBuild OS:\033[0m " CLI_BuildOS NL );
354 print( " \033[1mArchitecture:\033[0m " CLI_Arch NL );
355 print( " \033[1mChip:\033[0m " CLI_Chip NL );
356 print( " \033[1mCPU:\033[0m " CLI_CPU NL );
357 print( " \033[1mDevice:\033[0m " CLI_Device NL );
358 print( " \033[1mModules:\033[0m " CLI_Modules NL );