Changed the build system to drop I2C for now. Seems to cause too many issues

on non Raspbian systems (and even on some Raspbian systems it would appear ):

fixed a timing issue on softTone
fixed some issues in wiringPisetup introduced when optimising the mmap calls.

People

@@ -19,3 +19,6 @@ Armin (Via projects website)
 
 Arno Wagner
   Suggestions for the mmap calls in wiringPiSetup()
+
+CHARLES Thibaut:
+  A small issue in softTone

README.TXT

@@ -0,0 +1,26 @@
+
+wiringPi README
+===============
+
+Please note that the official way to get wiringPi is via git from
+git.drogon.net and not GitHub.
+
+ie.
+
+  git clone git://git.drogon.net/wiringPi
+
+The version of wiringPi held on GitHub by "Gadgetoid" is used to build the
+wiringPython, Ruby, Perl, etc. wrappers for these other languages. This
+version may lag the official Drogon release.  Pull requests may not be
+accepted to Github....
+
+Please see
+
+  https://projects.drogon.net/raspberry-pi/wiringpi/
+
+for the official documentation, etc. and the best way to submit bug reports, etc.
+is by sending an email to projects@drogon.net
+
+Thanks!
+
+  -Gordon

examples/Makefile

@@ -30,7 +30,7 @@ INCLUDE	= -I/usr/local/include
 CFLAGS	= $(DEBUG) -Wall $(INCLUDE) -Winline -pipe
 
 LDFLAGS	= -L/usr/local/lib
-LDLIBS    = -lwiringPi
+LDLIBS    = -lwiringPi -lpthread -lm
 
 # Should not alter anything below this line
 ###############################################################################
@@ -44,6 +44,13 @@ OBJ	=	$(SRC:.c=.o)
 
 BINS	=	$(SRC:.c=)
 
+# Note:
+#	Please don't waste your time by emailling me or doing a
+#	pull request with changes to make all these targets. It
+#	is intentional that I do it this way as it now takes too
+#	long to compile them all and most people will not run
+#	them anyway... -GH-
+
 all:	
 	@cat README.TXT
 	@echo "    $(BINS)" | fmt
@@ -75,19 +82,19 @@ isr:	isr.o
 
 piface:	piface.o
 	@echo [link]
-	@$(CC) -o $@ piface.o $(LDFLAGS) $(LDLIBS) -lpthread
+	@$(CC) -o $@ piface.o $(LDFLAGS) $(LDLIBS)
 
 gertboard:	gertboard.o
 	@echo [link]
-	@$(CC) -o $@ gertboard.o $(LDFLAGS) $(LDLIBS) -lm
+	@$(CC) -o $@ gertboard.o $(LDFLAGS) $(LDLIBS)
 
 nes:	nes.o
 	@echo [link]
-	@$(CC) -o $@ nes.o $(LDFLAGS) $(LDLIBS) -lm
+	@$(CC) -o $@ nes.o $(LDFLAGS) $(LDLIBS) 
 
 pwm:	pwm.o
 	@echo [link]
-	@$(CC) -o $@ pwm.o $(LDFLAGS) $(LDLIBS) -lm -lpthread
+	@$(CC) -o $@ pwm.o $(LDFLAGS) $(LDLIBS)
 
 delayTest:	delayTest.o
 	@echo [link]

gpio/Makefile

@@ -30,7 +30,7 @@ INCLUDE	= -I/usr/local/include
 CFLAGS	= $(DEBUG) -Wall $(INCLUDE) -Winline -pipe
 
 LDFLAGS	= -L/usr/local/lib
-LIBS    = -lwiringPi -lpthread
+LIBS    = -lwiringPi -lpthread -lm
 
 # May not need to  alter anything below this line
 ###############################################################################

gpio/gpio.c

@@ -42,7 +42,7 @@ extern int wiringPiDebug ;
 #  define	FALSE	(1==2)
 #endif
 
-#define	VERSION	"1.7"
+#define	VERSION	"1.8"
 
 static int wpMode ;
 

wiringPi/Makefile

@@ -46,7 +46,7 @@ SRC	=	wiringPi.c wiringPiFace.c wiringSerial.c wiringShift.c	\
 		gertboard.c						\
 		piNes.c							\
 		lcd.c piHiPri.c piThread.c				\
-		wiringPiSPI.c wiringPiI2C.c 				\
+		wiringPiSPI.c 						\
 		softPwm.c softServo.c softTone.c
 
 OBJ	=	$(SRC:.c=.o)

wiringPi/softServo.c

@@ -54,6 +54,15 @@
 //	the multipexing, but it does need to be at least 10mS, and preferably 16
 //	from what I've been able to determine.
 
+// WARNING:
+//	This code is really experimental. It was written in response to some people
+//	asking for a servo driver, however while it works, there is too much
+//	jitter to successfully drive a small servo - I have tried it with a micro
+//	servo and it worked, but the servo ran hot due to the jitter in the signal
+//	being sent to it.
+//
+//	If you want servo control for the Pi, then use the servoblaster kernel
+//	module.
 
 #define	MAX_SERVOS	8
 

wiringPi/softTone.c

@@ -59,7 +59,9 @@ static PI_THREAD (softToneThread)
   for (;;)
   {
     frewq = frewqs [pin] ;
-    if (frewq != 0)
+    if (frewq == 0)
+      delay (1) ;
+    else
     {
       halfPeriod = 500000 / frewq ;
 

wiringPi/wiringPi.c

@@ -1204,7 +1204,11 @@ int wiringPiSetup (void)
   if ((fd = open ("/dev/mem", O_RDWR | O_SYNC) ) < 0)
   {
     if (wiringPiDebug)
+    {
+      int serr = errno ;
 	fprintf (stderr, "wiringPiSetup: Unable to open /dev/mem: %s\n", strerror (errno)) ;
+      errno = serr ;
+    }
     return -1 ;
   }
 
@@ -1214,7 +1218,11 @@ int wiringPiSetup (void)
   if ((int32_t)gpio == -1)
   {
     if (wiringPiDebug)
+    {
+      int serr = errno ;
 	fprintf (stderr, "wiringPiSetup: mmap failed: %s\n", strerror (errno)) ;
+      errno = serr ;
+    }
     return -1 ;
   }
 
@@ -1224,27 +1232,39 @@ int wiringPiSetup (void)
   if ((int32_t)pwm == -1)
   {
     if (wiringPiDebug)
+    {
+      int serr = errno ;
 	fprintf (stderr, "wiringPiSetup: mmap failed (pwm): %s\n", strerror (errno)) ;
+      errno = serr ;
+    }
     return -1 ;
   }
  
 // Clock control (needed for PWM)
 
   clk = (uint32_t *)mmap(0, BLOCK_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, CLOCK_BASE) ;
-  if ((int32_t)clk < 0)
+  if ((int32_t)clk == -1)
   {
     if (wiringPiDebug)
+    {
+      int serr = errno ;
 	fprintf (stderr, "wiringPiSetup: mmap failed (clk): %s\n", strerror (errno)) ;
+      errno = serr ;
+    }
     return -1 ;
   }
  
 // The drive pads
 
   pads = (uint32_t *)mmap(0, BLOCK_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, GPIO_PADS) ;
-  if ((int32_t)pads < 0)
+  if ((int32_t)pads == -1)
   {
     if (wiringPiDebug)
+    {
+      int serr = errno ;
 	fprintf (stderr, "wiringPiSetup: mmap failed (pads): %s\n", strerror (errno)) ;
+      errno = serr ;
+    }
     return -1 ;
   }
 
@@ -1256,10 +1276,14 @@ int wiringPiSetup (void)
 // The system timer
 
   timer = (uint32_t *)mmap(0, BLOCK_SIZE, PROT_READ|PROT_WRITE, MAP_SHARED, fd, GPIO_TIMER) ;
-  if ((int32_t)timer < 0)
+  if ((int32_t)timer == -1)
   {
     if (wiringPiDebug)
+    {
+      int serr = errno ;
 	fprintf (stderr, "wiringPiSetup: mmap failed (timer): %s\n", strerror (errno)) ;
+      errno = serr ;
+    }
     return -1 ;
   }
 

wiringPi/wiringPi.h

@@ -53,6 +53,7 @@
 #define	INT_EDGE_SETUP		0
 #define	INT_EDGE_FALLING	1
 #define	INT_EDGE_RISING		2
+#define	INT_EDGE_BOTH		3
 
 // Threads