Fixed delayMicroseconds for more than 1 second.

Added new code for max31855

gpio/Makefile

@@ -35,7 +35,7 @@ LIBS    = -lwiringPi -lwiringPiDev -lpthread -lm
 # May not need to  alter anything below this line
 ###############################################################################
 
-SRC	=	gpio.c extensions.c
+SRC	=	gpio.c extensions.c readall.c
 
 OBJ	=	$(SRC:.c=.o)
 

gpio/extensions.c

@@ -43,6 +43,7 @@
 #include <sr595.h>
 #include <pcf8591.h>
 #include <pcf8574.h>
+#include <max31855.h>
 #include <mcp3002.h>
 #include <mcp3004.h>
 #include <mcp4802.h>
@@ -335,6 +336,32 @@ static int doExtensionPcf8591 (char *progName, int pinBase, char *params)
 
 
 /*
+ * doExtensionMax31855:
+ *	Analog IO
+ *	max31855:base:spiChan
+ *********************************************************************************
+ */
+
+static int doExtensionMax31855 (char *progName, int pinBase, char *params)
+{
+  int spi ;
+
+  if ((params = extractInt (progName, params, &spi)) == NULL)
+    return FALSE ;
+
+  if ((spi < 0) || (spi > 1))
+  {
+    fprintf (stderr, "%s: SPI channel (%d) out of range\n", progName, spi) ;
+    return FALSE ;
+  }
+
+  max31855Setup (pinBase, spi) ;
+
+  return TRUE ;
+}
+
+
+/*
  * doExtensionMcp3002:
  *	Analog IO
  *	mcp3002:base:spiChan
@@ -475,6 +502,7 @@ struct extensionFunctionStruct extensionFunctions [] =
   { "mcp3004",		&doExtensionMcp3004	},
   { "mcp4802",		&doExtensionMcp4802	},
   { "mcp3422",		&doExtensionMcp3422	},
+  { "max31855",		&doExtensionMax31855	},
   { NULL,		NULL		 	},
 } ;
 

gpio/gpio.c

@@ -43,15 +43,18 @@
 
 extern int wiringPiDebug ;
 
+extern void doReadall    (void) ;
+extern void doReadallOld (void) ;
+
 #ifndef TRUE
 #  define	TRUE	(1==1)
 #  define	FALSE	(1==2)
 #endif
 
-#define	VERSION		"2.07"
+#define	VERSION		"2.08"
 #define	I2CDETECT	"/usr/sbin/i2cdetect"
 
-static int wpMode ;
+int wpMode ;
 
 char *usage = "Usage: gpio -v\n"
               "       gpio -h\n"
@@ -237,95 +240,6 @@ static void doI2Cdetect (int argc, char *argv [])
 
 
 /*
- * doReadall:
- *	Read all the GPIO pins
- *	We also want to use this to read the state of pins on an externally
- *	connected device, so we need to do some fiddling with the internal
- *	wiringPi node structures - since the gpio command can only use
- *	one external device at a time, we'll use that to our advantage...
- *********************************************************************************
- */
-
-static char *pinNames [] =
-{
-  "GPIO 0", "GPIO 1", "GPIO 2", "GPIO 3", "GPIO 4", "GPIO 5", "GPIO 6", "GPIO 7",
-  "SDA   ", "SCL   ",
-  "CE0   ", "CE1   ", "MOSI  ", "MISO  ", "SCLK  ",
-  "TxD   ", "RxD   ",
-  "GPIO 8", "GPIO 9", "GPIO10", "GPIO11",
-} ;
-
-static char *alts [] =
-{
-  "IN  ", "OUT ", "ALT5", "ALT4", "ALT0", "ALT1", "ALT2", "ALT3"
-} ;
-
-static int wpiToPhys [64] =
-{
-  11, 12, 13, 15, 16, 18, 22,  7,	//  0...7
-   3,  5,				//  8...9
-  24, 26, 19, 21, 23,			// 10..14
-   8, 10,				// 15..16
-   3,  4,  5,  6,			// 17..20
-             0,0,0,0,0,0,0,0,0,0,0,	// 20..31
-   0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,	// 32..47
-   0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,	// 47..63
-} ;
-
-
-/*
- * doReadallExternal:
- *	A relatively crude way to read the pins on an external device.
- *	We don't know the input/output mode of pins, but we can tell
- *	if it's an analog pin or a digital one...
- *********************************************************************************
- */
-
-static void doReadallExternal (void)
-{
-  int pin ;
-
-  printf ("+------+---------+--------+\n") ;
-  printf ("|  Pin | Digital | Analog |\n") ;
-  printf ("+------+---------+--------+\n") ;
-
-  for (pin = wiringPiNodes->pinBase ; pin <= wiringPiNodes->pinMax ; ++pin)
-    printf ("| %4d |  %4d   |  %4d  |\n", pin, digitalRead (pin), analogRead (pin)) ;
-
-  printf ("+------+---------+--------+\n") ;
-}
-
-
-static void doReadall (void)
-{
-  int pin ;
-
-  if (wiringPiNodes != NULL)	// External readall
-    doReadallExternal () ;
-  else
-  {
-    printf ("+----------+-Rev%d-+------+--------+------+-------+\n", piBoardRev ()) ;
-    printf ("| wiringPi | GPIO | Phys | Name   | Mode | Value |\n") ;
-    printf ("+----------+------+------+--------+------+-------+\n") ;
-
-    for (pin = 0 ; pin < 64 ; ++pin)	// Crude, but effective
-    {
-      if (wpiPinToGpio (pin) == -1)
-	continue ;
-
-      printf ("| %6d   | %3d  | %3d  | %s | %s | %s  |\n",
-	  pin, wpiPinToGpio (pin), wpiToPhys [pin],
-	  pinNames [pin], 
-	  alts [getAlt (pin)], 
-	  digitalRead (pin) == HIGH ? "High" : "Low ") ;
-    }
-
-    printf ("+----------+------+------+--------+------+-------+\n") ;
-  }
-}
-
-
-/*
  * doExports:
  *	List all GPIO exports
  *********************************************************************************
@@ -716,12 +630,15 @@ void doMode (int argc, char *argv [])
   mode = argv [3] ;
 
   /**/ if (strcasecmp (mode, "in")     == 0) pinMode         (pin, INPUT) ;
+  else if (strcasecmp (mode, "input")  == 0) pinMode         (pin, INPUT) ;
   else if (strcasecmp (mode, "out")    == 0) pinMode         (pin, OUTPUT) ;
+  else if (strcasecmp (mode, "output") == 0) pinMode         (pin, OUTPUT) ;
   else if (strcasecmp (mode, "pwm")    == 0) pinMode         (pin, PWM_OUTPUT) ;
   else if (strcasecmp (mode, "clock")  == 0) pinMode         (pin, GPIO_CLOCK) ;
   else if (strcasecmp (mode, "up")     == 0) pullUpDnControl (pin, PUD_UP) ;
   else if (strcasecmp (mode, "down")   == 0) pullUpDnControl (pin, PUD_DOWN) ;
   else if (strcasecmp (mode, "tri")    == 0) pullUpDnControl (pin, PUD_OFF) ;
+  else if (strcasecmp (mode, "off")    == 0) pullUpDnControl (pin, PUD_OFF) ;
   else
   {
     fprintf (stderr, "%s: Invalid mode: %s. Should be in/out/pwm/clock/up/down/tri\n", argv [1], mode) ;
@@ -1268,18 +1185,19 @@ int main (int argc, char *argv [])
 
 // Pi Specifics
 
-  else if (strcasecmp (argv [1], "pwm-bal"  ) == 0) doPwmMode   (PWM_MODE_BAL) ;
-  else if (strcasecmp (argv [1], "pwm-ms"   ) == 0) doPwmMode   (PWM_MODE_MS) ;
-  else if (strcasecmp (argv [1], "pwmr"     ) == 0) doPwmRange  (argc, argv) ;
-  else if (strcasecmp (argv [1], "pwmc"     ) == 0) doPwmClock  (argc, argv) ;
-  else if (strcasecmp (argv [1], "drive"    ) == 0) doPadDrive  (argc, argv) ;
-  else if (strcasecmp (argv [1], "readall"  ) == 0) doReadall   () ;
-  else if (strcasecmp (argv [1], "i2cdetect") == 0) doI2Cdetect (argc, argv) ;
-  else if (strcasecmp (argv [1], "i2cd"     ) == 0) doI2Cdetect (argc, argv) ;
-  else if (strcasecmp (argv [1], "reset"    ) == 0) doReset     (argv [0]) ;
-  else if (strcasecmp (argv [1], "wb"       ) == 0) doWriteByte (argc, argv) ;
-  else if (strcasecmp (argv [1], "clock"    ) == 0) doClock     (argc, argv) ;
-  else if (strcasecmp (argv [1], "wfi"      ) == 0) doWfi       (argc, argv) ;
+  else if (strcasecmp (argv [1], "pwm-bal"  ) == 0) doPwmMode    (PWM_MODE_BAL) ;
+  else if (strcasecmp (argv [1], "pwm-ms"   ) == 0) doPwmMode    (PWM_MODE_MS) ;
+  else if (strcasecmp (argv [1], "pwmr"     ) == 0) doPwmRange   (argc, argv) ;
+  else if (strcasecmp (argv [1], "pwmc"     ) == 0) doPwmClock   (argc, argv) ;
+  else if (strcasecmp (argv [1], "drive"    ) == 0) doPadDrive   (argc, argv) ;
+  else if (strcasecmp (argv [1], "readall"  ) == 0) doReadall    () ;
+  else if (strcasecmp (argv [1], "oreadall" ) == 0) doReadallOld () ;
+  else if (strcasecmp (argv [1], "i2cdetect") == 0) doI2Cdetect  (argc, argv) ;
+  else if (strcasecmp (argv [1], "i2cd"     ) == 0) doI2Cdetect  (argc, argv) ;
+  else if (strcasecmp (argv [1], "reset"    ) == 0) doReset      (argv [0]) ;
+  else if (strcasecmp (argv [1], "wb"       ) == 0) doWriteByte  (argc, argv) ;
+  else if (strcasecmp (argv [1], "clock"    ) == 0) doClock      (argc, argv) ;
+  else if (strcasecmp (argv [1], "wfi"      ) == 0) doWfi        (argc, argv) ;
   else
   {
     fprintf (stderr, "%s: Unknown command: %s.\n", argv [0], argv [1]) ;

wiringPi/Makefile

@@ -35,7 +35,8 @@ DYNAMIC=libwiringPi.so.$(VERSION)
 DEBUG	= -O2
 CC	= gcc
 INCLUDE	= -I.
-CFLAGS	= $(DEBUG) -Wformat=2 -Wall $(INCLUDE) -Winline -pipe -fPIC
+DEFS	= -D_GNU_SOURCE
+CFLAGS	= $(DEBUG) $(DEFS) -Wformat=2 -Wall -Winline $(INCLUDE) -pipe -fPIC
 
 LIBS    =
 
@@ -52,6 +53,7 @@ SRC	=	wiringPi.c						\
 		sr595.c							\
 		pcf8574.c pcf8591.c					\
 		mcp3002.c mcp3004.c mcp4802.c mcp3422.c			\
+		max31855.c						\
 		drc.c
 
 OBJ	=	$(SRC:.c=.o)
@@ -101,6 +103,7 @@ install-headers:
 	@install -m 0644 mcp23017.h		$(DESTDIR)$(PREFIX)/include
 	@install -m 0644 mcp23s08.h		$(DESTDIR)$(PREFIX)/include
 	@install -m 0644 mcp23s17.h		$(DESTDIR)$(PREFIX)/include
+	@install -m 0644 max31855.h		$(DESTDIR)$(PREFIX)/include
 	@install -m 0644 mcp3002.h		$(DESTDIR)$(PREFIX)/include
 	@install -m 0644 mcp3004.h		$(DESTDIR)$(PREFIX)/include
 	@install -m 0644 mcp4802.h		$(DESTDIR)$(PREFIX)/include
@@ -138,6 +141,7 @@ uninstall:
 	@rm -f $(DESTDIR)$(PREFIX)/include/mcp23017.h
 	@rm -f $(DESTDIR)$(PREFIX)/include/mcp23s08.h
 	@rm -f $(DESTDIR)$(PREFIX)/include/mcp23s17.h
+	@rm -f $(DESTDIR)$(PREFIX)/include/max31855.h
 	@rm -f $(DESTDIR)$(PREFIX)/include/mcp3002.h
 	@rm -f $(DESTDIR)$(PREFIX)/include/mcp3004.h
 	@rm -f $(DESTDIR)$(PREFIX)/include/mcp4802.h
@@ -173,6 +177,8 @@ sr595.o: wiringPi.h sr595.h
 pcf8574.o: wiringPi.h wiringPiI2C.h pcf8574.h
 pcf8591.o: wiringPi.h wiringPiI2C.h pcf8591.h
 mcp3002.o: wiringPi.h wiringPiSPI.h mcp3002.h
+mcp3004.o: wiringPi.h wiringPiSPI.h mcp3004.h
 mcp4802.o: wiringPi.h wiringPiSPI.h mcp4802.h
 mcp3422.o: wiringPi.h wiringPiI2C.h mcp3422.h
+max31855.o: wiringPi.h wiringPiSPI.h max31855.h
 drc.o: wiringPi.h wiringSerial.h drc.h

wiringPi/wiringPi.c

@@ -1448,6 +1448,8 @@ void delayMicrosecondsHard (unsigned int howLong)
 void delayMicroseconds (unsigned int howLong)
 {
   struct timespec sleeper ;
+  unsigned int uSecs = howLong % 1000000 ;
+  unsigned int wSecs = howLong / 1000000 ;
 
   /**/ if (howLong ==   0)
     return ;
@@ -1455,8 +1457,8 @@ void delayMicroseconds (unsigned int howLong)
     delayMicrosecondsHard (howLong) ;
   else
   {
-    sleeper.tv_sec  = 0 ;
-    sleeper.tv_nsec = (long)(howLong * 1000) ;
+    sleeper.tv_sec  = wSecs ;
+    sleeper.tv_nsec = (long)(uSecs * 1000L) ;
     nanosleep (&sleeper, NULL) ;
   }
 }
@@ -1539,7 +1541,7 @@ int wiringPiSetup (void)
 
 // Open the master /dev/memory device
 
-  if ((fd = open ("/dev/mem", O_RDWR | O_SYNC) ) < 0)
+  if ((fd = open ("/dev/mem", O_RDWR | O_SYNC | O_CLOEXEC) ) < 0)
     return wiringPiFailure (WPI_ALMOST, "wiringPiSetup: Unable to open /dev/mem: %s\n", strerror (errno)) ;
 
 // GPIO: