3 * Swiss-Army-Knife, Set-UID command-line interface to the Raspberry
5 * Copyright (c) 2012-2013 Gordon Henderson
6 ***********************************************************************
7 * This file is part of wiringPi:
8 * https://projects.drogon.net/raspberry-pi/wiringpi/
10 * wiringPi is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
15 * wiringPi is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
22 ***********************************************************************
34 #include <sys/types.h>
39 #include <gertboard.h>
42 #include "extensions.h"
44 extern int wiringPiDebug ;
46 // External functions I can't be bothered creating a separate .h file for:
48 extern void doReadall (void) ;
49 extern void doReadallOld (void) ;
51 extern void doPins (void) ;
58 #define VERSION "2.14"
59 #define I2CDETECT "/usr/sbin/i2cdetect"
63 char *usage = "Usage: gpio -v\n"
65 " gpio [-g|-1] [-x extension:params] ...\n"
66 " gpio [-p] <read/write/wb> ...\n"
67 " gpio <read/write/aread/awritewb/pwm/clock/mode> ...\n"
68 " gpio readall/reset\n"
69 " gpio unexportall/exports\n"
70 " gpio export/edge/unexport ...\n"
71 " gpio wfi <pin> <mode>\n"
72 " gpio drive <group> <value>\n"
73 " gpio pwm-bal/pwm-ms \n"
74 " gpio pwmr <range> \n"
75 " gpio pwmc <divider> \n"
76 " gpio load spi/i2c\n"
77 " gpio i2cd/i2cdetect\n"
78 " gpio gbr <channel>\n"
79 " gpio gbw <channel> <value>" ; // No trailing newline needed here.
84 * Decode a pin "number" which can actually be a pin name to represent
85 * one of the Pi's on-board pins.
86 *********************************************************************************
89 static int decodePin (const char *str)
92 // The first case - see if it's a number:
94 if (isdigit (str [0]))
103 * Change the ownership of the file to the real userId of the calling
104 * program so we can access it.
105 *********************************************************************************
108 static void changeOwner (char *cmd, char *file)
110 uid_t uid = getuid () ;
111 uid_t gid = getgid () ;
113 if (chown (file, uid, gid) != 0)
115 if (errno == ENOENT) // Warn that it's not there
116 fprintf (stderr, "%s: Warning: File not present: %s\n", cmd, file) ;
119 fprintf (stderr, "%s: Unable to change ownership of %s: %s\n", cmd, file, strerror (errno)) ;
128 * Return true/false if the supplied module is loaded
129 *********************************************************************************
132 static int moduleLoaded (char *modName)
134 int len = strlen (modName) ;
136 FILE *fd = fopen ("/proc/modules", "r") ;
141 fprintf (stderr, "gpio: Unable to check modules: %s\n", strerror (errno)) ;
145 while (fgets (line, 80, fd) != NULL)
147 if (strncmp (line, modName, len) != 0)
162 * Load either the spi or i2c modules and change device ownerships, etc.
163 *********************************************************************************
166 static void _doLoadUsage (char *argv [])
168 fprintf (stderr, "Usage: %s load <spi/i2c> [SPI bufferSize in KB | I2C baudrate in Kb/sec]\n", argv [0]) ;
172 static void doLoad (int argc, char *argv [])
174 char *module1, *module2 ;
176 char *file1, *file2 ;
177 char args1 [32], args2 [32] ;
180 _doLoadUsage (argv) ;
182 args1 [0] = args2 [0] = 0 ;
184 /**/ if (strcasecmp (argv [2], "spi") == 0)
187 module2 = "spi_bcm2708" ;
188 file1 = "/dev/spidev0.0" ;
189 file2 = "/dev/spidev0.1" ;
191 sprintf (args1, " bufsiz=%d", atoi (argv [3]) * 1024) ;
193 _doLoadUsage (argv) ;
195 else if (strcasecmp (argv [2], "i2c") == 0)
197 module1 = "i2c_dev" ;
198 module2 = "i2c_bcm2708" ;
199 file1 = "/dev/i2c-0" ;
200 file2 = "/dev/i2c-1" ;
202 sprintf (args2, " baudrate=%d", atoi (argv [3]) * 1000) ;
204 _doLoadUsage (argv) ;
207 _doLoadUsage (argv) ;
209 if (!moduleLoaded (module1))
211 sprintf (cmd, "modprobe %s%s", module1, args1) ;
215 if (!moduleLoaded (module2))
217 sprintf (cmd, "modprobe %s%s", module2, args2) ;
221 if (!moduleLoaded (module2))
223 fprintf (stderr, "%s: Unable to load %s\n", argv [0], module2) ;
227 sleep (1) ; // To let things get settled
229 changeOwner (argv [0], file1) ;
230 changeOwner (argv [0], file2) ;
236 * Run the i2cdetect command with the right runes for this Pi revision
237 *********************************************************************************
240 static void doI2Cdetect (int argc, char *argv [])
242 int port = piBoardRev () == 1 ? 0 : 1 ;
244 struct stat statBuf ;
246 if (stat (I2CDETECT, &statBuf) < 0)
248 fprintf (stderr, "%s: Unable to find i2cdetect command: %s\n", argv [0], strerror (errno)) ;
252 if (!moduleLoaded ("i2c_dev"))
254 fprintf (stderr, "%s: The I2C kernel module(s) are not loaded.\n", argv [0]) ;
258 sprintf (command, "%s -y %d", I2CDETECT, port) ;
259 if (system (command) < 0)
260 fprintf (stderr, "%s: Unable to run i2cdetect: %s\n", argv [0], strerror (errno)) ;
267 * List all GPIO exports
268 *********************************************************************************
271 static void doExports (int argc, char *argv [])
278 for (first = 0, i = 0 ; i < 64 ; ++i) // Crude, but effective
281 // Try to read the direction
283 sprintf (fName, "/sys/class/gpio/gpio%d/direction", i) ;
284 if ((fd = open (fName, O_RDONLY)) == -1)
290 printf ("GPIO Pins exported:\n") ;
293 printf ("%4d: ", i) ;
295 if ((l = read (fd, buf, 16)) == 0)
296 sprintf (buf, "%s", "?") ;
299 if ((buf [strlen (buf) - 1]) == '\n')
300 buf [strlen (buf) - 1] = 0 ;
302 printf ("%-3s", buf) ;
306 // Try to Read the value
308 sprintf (fName, "/sys/class/gpio/gpio%d/value", i) ;
309 if ((fd = open (fName, O_RDONLY)) == -1)
311 printf ("No Value file (huh?)\n") ;
315 if ((l = read (fd, buf, 16)) == 0)
316 sprintf (buf, "%s", "?") ;
319 if ((buf [strlen (buf) - 1]) == '\n')
320 buf [strlen (buf) - 1] = 0 ;
322 printf (" %s", buf) ;
324 // Read any edge trigger file
326 sprintf (fName, "/sys/class/gpio/gpio%d/edge", i) ;
327 if ((fd = open (fName, O_RDONLY)) == -1)
333 if ((l = read (fd, buf, 16)) == 0)
334 sprintf (buf, "%s", "?") ;
337 if ((buf [strlen (buf) - 1]) == '\n')
338 buf [strlen (buf) - 1] = 0 ;
340 printf (" %-8s\n", buf) ;
349 * gpio export pin mode
350 * This uses the /sys/class/gpio device interface.
351 *********************************************************************************
354 void doExport (int argc, char *argv [])
363 fprintf (stderr, "Usage: %s export pin mode\n", argv [0]) ;
367 pin = atoi (argv [2]) ;
371 if ((fd = fopen ("/sys/class/gpio/export", "w")) == NULL)
373 fprintf (stderr, "%s: Unable to open GPIO export interface: %s\n", argv [0], strerror (errno)) ;
377 fprintf (fd, "%d\n", pin) ;
380 sprintf (fName, "/sys/class/gpio/gpio%d/direction", pin) ;
381 if ((fd = fopen (fName, "w")) == NULL)
383 fprintf (stderr, "%s: Unable to open GPIO direction interface for pin %d: %s\n", argv [0], pin, strerror (errno)) ;
387 /**/ if ((strcasecmp (mode, "in") == 0) || (strcasecmp (mode, "input") == 0))
388 fprintf (fd, "in\n") ;
389 else if ((strcasecmp (mode, "out") == 0) || (strcasecmp (mode, "output") == 0))
390 fprintf (fd, "out\n") ;
393 fprintf (stderr, "%s: Invalid mode: %s. Should be in or out\n", argv [1], mode) ;
399 // Change ownership so the current user can actually use it!
401 sprintf (fName, "/sys/class/gpio/gpio%d/value", pin) ;
402 changeOwner (argv [0], fName) ;
404 sprintf (fName, "/sys/class/gpio/gpio%d/edge", pin) ;
405 changeOwner (argv [0], fName) ;
413 * Wait for Interrupt on a given pin.
414 * Slight cheat here - it's easier to actually use ISR now (which calls
415 * gpio to set the pin modes!) then we simply sleep, and expect the thread
416 * to exit the program. Crude but effective.
417 *********************************************************************************
420 static void wfi (void)
423 void doWfi (int argc, char *argv [])
429 fprintf (stderr, "Usage: %s wfi pin mode\n", argv [0]) ;
433 pin = atoi (argv [2]) ;
435 /**/ if (strcasecmp (argv [3], "rising") == 0) mode = INT_EDGE_RISING ;
436 else if (strcasecmp (argv [3], "falling") == 0) mode = INT_EDGE_FALLING ;
437 else if (strcasecmp (argv [3], "both") == 0) mode = INT_EDGE_BOTH ;
440 fprintf (stderr, "%s: wfi: Invalid mode: %s. Should be rising, falling or both\n", argv [1], argv [3]) ;
444 if (wiringPiISR (pin, mode, &wfi) < 0)
446 fprintf (stderr, "%s: wfi: Unable to setup ISR: %s\n", argv [1], strerror (errno)) ;
459 * Easy access to changing the edge trigger on a GPIO pin
460 * This uses the /sys/class/gpio device interface.
461 *********************************************************************************
464 void doEdge (int argc, char *argv [])
473 fprintf (stderr, "Usage: %s edge pin mode\n", argv [0]) ;
477 pin = atoi (argv [2]) ;
480 // Export the pin and set direction to input
482 if ((fd = fopen ("/sys/class/gpio/export", "w")) == NULL)
484 fprintf (stderr, "%s: Unable to open GPIO export interface: %s\n", argv [0], strerror (errno)) ;
488 fprintf (fd, "%d\n", pin) ;
491 sprintf (fName, "/sys/class/gpio/gpio%d/direction", pin) ;
492 if ((fd = fopen (fName, "w")) == NULL)
494 fprintf (stderr, "%s: Unable to open GPIO direction interface for pin %d: %s\n", argv [0], pin, strerror (errno)) ;
498 fprintf (fd, "in\n") ;
501 sprintf (fName, "/sys/class/gpio/gpio%d/edge", pin) ;
502 if ((fd = fopen (fName, "w")) == NULL)
504 fprintf (stderr, "%s: Unable to open GPIO edge interface for pin %d: %s\n", argv [0], pin, strerror (errno)) ;
508 /**/ if (strcasecmp (mode, "none") == 0) fprintf (fd, "none\n") ;
509 else if (strcasecmp (mode, "rising") == 0) fprintf (fd, "rising\n") ;
510 else if (strcasecmp (mode, "falling") == 0) fprintf (fd, "falling\n") ;
511 else if (strcasecmp (mode, "both") == 0) fprintf (fd, "both\n") ;
514 fprintf (stderr, "%s: Invalid mode: %s. Should be none, rising, falling or both\n", argv [1], mode) ;
518 // Change ownership of the value and edge files, so the current user can actually use it!
520 sprintf (fName, "/sys/class/gpio/gpio%d/value", pin) ;
521 changeOwner (argv [0], fName) ;
523 sprintf (fName, "/sys/class/gpio/gpio%d/edge", pin) ;
524 changeOwner (argv [0], fName) ;
533 * This uses the /sys/class/gpio device interface.
534 *********************************************************************************
537 void doUnexport (int argc, char *argv [])
544 fprintf (stderr, "Usage: %s unexport pin\n", argv [0]) ;
548 pin = atoi (argv [2]) ;
550 if ((fd = fopen ("/sys/class/gpio/unexport", "w")) == NULL)
552 fprintf (stderr, "%s: Unable to open GPIO export interface\n", argv [0]) ;
556 fprintf (fd, "%d\n", pin) ;
564 * Un-Export all the GPIO pins.
565 * This uses the /sys/class/gpio device interface.
566 *********************************************************************************
569 void doUnexportall (char *progName)
574 for (pin = 0 ; pin < 63 ; ++pin)
576 if ((fd = fopen ("/sys/class/gpio/unexport", "w")) == NULL)
578 fprintf (stderr, "%s: Unable to open GPIO export interface\n", progName) ;
581 fprintf (fd, "%d\n", pin) ;
589 * Load readallExternal, we try to do this with an external device.
590 *********************************************************************************
593 static void doResetExternal (void)
597 for (pin = wiringPiNodes->pinBase ; pin <= wiringPiNodes->pinMax ; ++pin)
599 pinMode (pin, INPUT) ;
600 pullUpDnControl (pin, PUD_OFF) ;
607 * Reset the GPIO pins - as much as we can do
608 *********************************************************************************
611 static void doReset (char *progName)
615 if (wiringPiNodes != NULL) // External reset
619 doUnexportall (progName) ;
621 for (pin = 0 ; pin < 64 ; ++pin)
623 if (wpiPinToGpio (pin) == -1)
626 digitalWrite (pin, LOW) ;
627 pinMode (pin, INPUT) ;
628 pullUpDnControl (pin, PUD_OFF) ;
636 * gpio mode pin mode ...
637 *********************************************************************************
640 void doMode (int argc, char *argv [])
647 fprintf (stderr, "Usage: %s mode pin mode\n", argv [0]) ;
651 pin = atoi (argv [2]) ;
655 /**/ if (strcasecmp (mode, "in") == 0) pinMode (pin, INPUT) ;
656 else if (strcasecmp (mode, "input") == 0) pinMode (pin, INPUT) ;
657 else if (strcasecmp (mode, "out") == 0) pinMode (pin, OUTPUT) ;
658 else if (strcasecmp (mode, "output") == 0) pinMode (pin, OUTPUT) ;
659 else if (strcasecmp (mode, "pwm") == 0) pinMode (pin, PWM_OUTPUT) ;
660 else if (strcasecmp (mode, "clock") == 0) pinMode (pin, GPIO_CLOCK) ;
661 else if (strcasecmp (mode, "up") == 0) pullUpDnControl (pin, PUD_UP) ;
662 else if (strcasecmp (mode, "down") == 0) pullUpDnControl (pin, PUD_DOWN) ;
663 else if (strcasecmp (mode, "tri") == 0) pullUpDnControl (pin, PUD_OFF) ;
664 else if (strcasecmp (mode, "off") == 0) pullUpDnControl (pin, PUD_OFF) ;
668 else if (strcasecmp (mode, "alt0") == 0) pinModeAlt (pin, 0b100) ;
669 else if (strcasecmp (mode, "alt1") == 0) pinModeAlt (pin, 0b101) ;
670 else if (strcasecmp (mode, "alt2") == 0) pinModeAlt (pin, 0b110) ;
671 else if (strcasecmp (mode, "alt3") == 0) pinModeAlt (pin, 0b111) ;
672 else if (strcasecmp (mode, "alt4") == 0) pinModeAlt (pin, 0b011) ;
673 else if (strcasecmp (mode, "alt5") == 0) pinModeAlt (pin, 0b010) ;
676 fprintf (stderr, "%s: Invalid mode: %s. Should be in/out/pwm/clock/up/down/tri\n", argv [1], mode) ;
684 * gpio drive group value
685 *********************************************************************************
688 static void doPadDrive (int argc, char *argv [])
694 fprintf (stderr, "Usage: %s drive group value\n", argv [0]) ;
698 group = atoi (argv [2]) ;
699 val = atoi (argv [3]) ;
701 if ((group < 0) || (group > 2))
703 fprintf (stderr, "%s: drive group not 0, 1 or 2: %d\n", argv [0], group) ;
707 if ((val < 0) || (val > 7))
709 fprintf (stderr, "%s: drive value not 0-7: %d\n", argv [0], val) ;
713 setPadDrive (group, val) ;
719 * gpio gbw channel value
720 * Gertboard Write - To the Analog output
721 *********************************************************************************
724 static void doGbw (int argc, char *argv [])
730 fprintf (stderr, "Usage: %s gbw <channel> <value>\n", argv [0]) ;
734 channel = atoi (argv [2]) ;
735 value = atoi (argv [3]) ;
737 if ((channel < 0) || (channel > 1))
739 fprintf (stderr, "%s: gbw: Channel number must be 0 or 1\n", argv [0]) ;
743 if ((value < 0) || (value > 1023))
745 fprintf (stderr, "%s: gbw: Value must be from 0 to 255\n", argv [0]) ;
749 if (gertboardAnalogSetup (64) < 0)
751 fprintf (stderr, "Unable to initialise the Gertboard SPI interface: %s\n", strerror (errno)) ;
755 analogWrite (64 + channel, value) ;
762 * From the analog input
763 *********************************************************************************
766 static void doGbr (int argc, char *argv [])
772 fprintf (stderr, "Usage: %s gbr <channel>\n", argv [0]) ;
776 channel = atoi (argv [2]) ;
778 if ((channel < 0) || (channel > 1))
780 fprintf (stderr, "%s: gbr: Channel number must be 0 or 1\n", argv [0]) ;
784 if (gertboardAnalogSetup (64) < 0)
786 fprintf (stderr, "Unable to initialise the Gertboard SPI interface: %s\n", strerror (errno)) ;
790 printf ("%d\n", analogRead (64 + channel)) ;
796 * gpio write pin value
797 *********************************************************************************
800 static void doWrite (int argc, char *argv [])
806 fprintf (stderr, "Usage: %s write pin value\n", argv [0]) ;
810 pin = atoi (argv [2]) ;
812 /**/ if ((strcasecmp (argv [3], "up") == 0) || (strcasecmp (argv [3], "on") == 0))
814 else if ((strcasecmp (argv [3], "down") == 0) || (strcasecmp (argv [3], "off") == 0))
817 val = atoi (argv [3]) ;
820 digitalWrite (pin, LOW) ;
822 digitalWrite (pin, HIGH) ;
828 * gpio awrite pin value
829 *********************************************************************************
832 static void doAwrite (int argc, char *argv [])
838 fprintf (stderr, "Usage: %s awrite pin value\n", argv [0]) ;
842 pin = atoi (argv [2]) ;
844 val = atoi (argv [3]) ;
846 analogWrite (pin, val) ;
853 *********************************************************************************
856 static void doWriteByte (int argc, char *argv [])
862 fprintf (stderr, "Usage: %s wb value\n", argv [0]) ;
866 val = (int)strtol (argv [2], NULL, 0) ;
868 digitalWriteByte (val) ;
874 * Read a pin and return the value
875 *********************************************************************************
878 void doRead (int argc, char *argv [])
884 fprintf (stderr, "Usage: %s read pin\n", argv [0]) ;
888 pin = atoi (argv [2]) ;
889 val = digitalRead (pin) ;
891 printf ("%s\n", val == 0 ? "0" : "1") ;
897 * Read an analog pin and return the value
898 *********************************************************************************
901 void doAread (int argc, char *argv [])
905 fprintf (stderr, "Usage: %s aread pin\n", argv [0]) ;
909 printf ("%d\n", analogRead (atoi (argv [2]))) ;
916 *********************************************************************************
919 void doToggle (int argc, char *argv [])
925 fprintf (stderr, "Usage: %s toggle pin\n", argv [0]) ;
929 pin = atoi (argv [2]) ;
931 digitalWrite (pin, !digitalRead (pin)) ;
936 * Output a clock on a pin
937 *********************************************************************************
940 void doClock (int argc, char *argv [])
946 fprintf (stderr, "Usage: %s clock <pin> <freq>\n", argv [0]) ;
950 pin = atoi (argv [2]) ;
952 freq = atoi (argv [3]) ;
954 gpioClockSet (pin, freq) ;
960 * Output a PWM value on a pin
961 *********************************************************************************
964 void doPwm (int argc, char *argv [])
970 fprintf (stderr, "Usage: %s pwm <pin> <value>\n", argv [0]) ;
974 pin = atoi (argv [2]) ;
976 val = atoi (argv [3]) ;
978 pwmWrite (pin, val) ;
983 * doPwmMode: doPwmRange: doPwmClock:
984 * Change the PWM mode, range and clock divider values
985 *********************************************************************************
988 static void doPwmMode (int mode)
993 static void doPwmRange (int argc, char *argv [])
999 fprintf (stderr, "Usage: %s pwmr <range>\n", argv [0]) ;
1003 range = (unsigned int)strtoul (argv [2], NULL, 10) ;
1007 fprintf (stderr, "%s: range must be > 0\n", argv [0]) ;
1011 pwmSetRange (range) ;
1014 static void doPwmClock (int argc, char *argv [])
1016 unsigned int clock ;
1020 fprintf (stderr, "Usage: %s pwmc <clock>\n", argv [0]) ;
1024 clock = (unsigned int)strtoul (argv [2], NULL, 10) ;
1026 if ((clock < 1) || (clock > 4095))
1028 fprintf (stderr, "%s: clock must be between 0 and 4096\n", argv [0]) ;
1032 pwmSetClock (clock) ;
1039 *********************************************************************************
1042 int main (int argc, char *argv [])
1046 if (getenv ("WIRINGPI_DEBUG") != NULL)
1048 printf ("gpio: wiringPi debug mode enabled\n") ;
1049 wiringPiDebug = TRUE ;
1054 fprintf (stderr, "%s\n", usage) ;
1060 if (strcasecmp (argv [1], "-h") == 0)
1062 printf ("%s: %s\n", argv [0], usage) ;
1066 // Sort of a special:
1068 if (strcmp (argv [1], "-R") == 0)
1070 printf ("%d\n", piBoardRev ()) ;
1074 // Version & Warranty
1076 if (strcmp (argv [1], "-V") == 0)
1078 printf ("%d\n", piBoardRev ()) ;
1082 if (strcmp (argv [1], "-v") == 0)
1084 printf ("gpio version: %s\n", VERSION) ;
1085 printf ("Copyright (c) 2012-2014 Gordon Henderson\n") ;
1086 printf ("This is free software with ABSOLUTELY NO WARRANTY.\n") ;
1087 printf ("For details type: %s -warranty\n", argv [0]) ;
1089 printf ("This Raspberry Pi is a revision %d board.\n", piBoardRev ()) ;
1093 if (strcasecmp (argv [1], "-warranty") == 0)
1095 printf ("gpio version: %s\n", VERSION) ;
1096 printf ("Copyright (c) 2012-2013 Gordon Henderson\n") ;
1098 printf (" This program is free software; you can redistribute it and/or modify\n") ;
1099 printf (" it under the terms of the GNU Leser General Public License as published\n") ;
1100 printf (" by the Free Software Foundation, either version 3 of the License, or\n") ;
1101 printf (" (at your option) any later version.\n") ;
1103 printf (" This program is distributed in the hope that it will be useful,\n") ;
1104 printf (" but WITHOUT ANY WARRANTY; without even the implied warranty of\n") ;
1105 printf (" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n") ;
1106 printf (" GNU Lesser General Public License for more details.\n") ;
1108 printf (" You should have received a copy of the GNU Lesser General Public License\n") ;
1109 printf (" along with this program. If not, see <http://www.gnu.org/licenses/>.\n") ;
1114 if (geteuid () != 0)
1116 fprintf (stderr, "%s: Must be root to run. Program should be suid root. This is an error.\n", argv [0]) ;
1120 // Initial test for /sys/class/gpio operations:
1122 /**/ if (strcasecmp (argv [1], "exports" ) == 0) { doExports (argc, argv) ; return 0 ; }
1123 else if (strcasecmp (argv [1], "export" ) == 0) { doExport (argc, argv) ; return 0 ; }
1124 else if (strcasecmp (argv [1], "edge" ) == 0) { doEdge (argc, argv) ; return 0 ; }
1125 else if (strcasecmp (argv [1], "unexport" ) == 0) { doUnexport (argc, argv) ; return 0 ; }
1126 else if (strcasecmp (argv [1], "unexportall") == 0) { doUnexportall (argv [0]) ; return 0 ; }
1128 // Check for load command:
1130 if (strcasecmp (argv [1], "load" ) == 0) { doLoad (argc, argv) ; return 0 ; }
1132 // Gertboard commands
1134 if (strcasecmp (argv [1], "gbr" ) == 0) { doGbr (argc, argv) ; return 0 ; }
1135 if (strcasecmp (argv [1], "gbw" ) == 0) { doGbw (argc, argv) ; return 0 ; }
1137 // Check for -g argument
1139 /**/ if (strcasecmp (argv [1], "-g") == 0)
1141 wiringPiSetupGpio () ;
1143 for (i = 2 ; i < argc ; ++i)
1144 argv [i - 1] = argv [i] ;
1146 wpMode = WPI_MODE_GPIO ;
1149 // Check for -1 argument
1151 else if (strcasecmp (argv [1], "-1") == 0)
1153 wiringPiSetupPhys () ;
1155 for (i = 2 ; i < argc ; ++i)
1156 argv [i - 1] = argv [i] ;
1158 wpMode = WPI_MODE_PHYS ;
1161 // Check for -p argument for PiFace
1163 else if (strcasecmp (argv [1], "-p") == 0)
1167 for (i = 2 ; i < argc ; ++i)
1168 argv [i - 1] = argv [i] ;
1170 wpMode = WPI_MODE_PIFACE ;
1173 // Default to wiringPi mode
1178 wpMode = WPI_MODE_PINS ;
1181 // Check for -x argument to load in a new extension
1183 if (strcasecmp (argv [1], "-x") == 0)
1187 fprintf (stderr, "%s: -x missing extension specification.\n", argv [0]) ;
1188 exit (EXIT_FAILURE) ;
1191 if (!doExtension (argv [0], argv [2])) // Prints its own error messages
1192 exit (EXIT_FAILURE) ;
1194 for (i = 3 ; i < argc ; ++i)
1195 argv [i - 2] = argv [i] ;
1201 fprintf (stderr, "%s: no command given\n", argv [0]) ;
1202 exit (EXIT_FAILURE) ;
1205 // Core wiringPi functions
1207 /**/ if (strcasecmp (argv [1], "mode" ) == 0) doMode (argc, argv) ;
1208 else if (strcasecmp (argv [1], "read" ) == 0) doRead (argc, argv) ;
1209 else if (strcasecmp (argv [1], "write" ) == 0) doWrite (argc, argv) ;
1210 else if (strcasecmp (argv [1], "pwm" ) == 0) doPwm (argc, argv) ;
1211 else if (strcasecmp (argv [1], "awrite" ) == 0) doAwrite (argc, argv) ;
1212 else if (strcasecmp (argv [1], "aread" ) == 0) doAread (argc, argv) ;
1216 else if (strcasecmp (argv [1], "toggle" ) == 0) doToggle (argc, argv) ;
1220 else if (strcasecmp (argv [1], "pwm-bal" ) == 0) doPwmMode (PWM_MODE_BAL) ;
1221 else if (strcasecmp (argv [1], "pwm-ms" ) == 0) doPwmMode (PWM_MODE_MS) ;
1222 else if (strcasecmp (argv [1], "pwmr" ) == 0) doPwmRange (argc, argv) ;
1223 else if (strcasecmp (argv [1], "pwmc" ) == 0) doPwmClock (argc, argv) ;
1224 else if (strcasecmp (argv [1], "drive" ) == 0) doPadDrive (argc, argv) ;
1225 else if (strcasecmp (argv [1], "readall" ) == 0) doReadallOld () ;
1226 else if (strcasecmp (argv [1], "nreadall" ) == 0) doReadall () ;
1227 else if (strcasecmp (argv [1], "pins" ) == 0) doPins () ;
1228 else if (strcasecmp (argv [1], "i2cdetect") == 0) doI2Cdetect (argc, argv) ;
1229 else if (strcasecmp (argv [1], "i2cd" ) == 0) doI2Cdetect (argc, argv) ;
1230 else if (strcasecmp (argv [1], "reset" ) == 0) doReset (argv [0]) ;
1231 else if (strcasecmp (argv [1], "wb" ) == 0) doWriteByte (argc, argv) ;
1232 else if (strcasecmp (argv [1], "clock" ) == 0) doClock (argc, argv) ;
1233 else if (strcasecmp (argv [1], "wfi" ) == 0) doWfi (argc, argv) ;
1236 fprintf (stderr, "%s: Unknown command: %s.\n", argv [0], argv [1]) ;
1237 exit (EXIT_FAILURE) ;