From: Gordon Henderson <projects@drogon.net>
Date: Sat, 19 Jan 2013 10:31:14 +0000 (+0000)
Subject: Changed the build system to drop I2C for now. Seems to cause too many issues
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=be04c1bd52fbc787eb741a2a87fcebe40f571a0d;p=wiringPi.git

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.
---

diff --git a/People b/People
index 35f8a4c..f5645be 100644
--- a/People
+++ b/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
diff --git a/README.TXT b/README.TXT
new file mode 100644
index 0000000..0fce86a
--- /dev/null
+++ b/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
diff --git a/build b/build
index cc6804a..2afafa6 100755
--- a/build
+++ b/build
@@ -2,17 +2,17 @@
 
 i2c-install()
 {
-  echo "* wiringPi needs the I2C Development Libraires installing."
-  echo ""
-  echo "If using Debian/Raspbian, then type this command:"
-  echo "  sudo apt-get install libi2c-dev"
-  echo "then run ./build again."
-  echo ""
-  echo "If using another Linux distribution, then you will have to"
-  echo "work out how to install the I2C Developmen Libraries for your"
-  echo "system. (Sorry - I don't know - do let me know though!)"
-  echo ""
-  exit 1
+ echo "* wiringPi needs the I2C Development Libraires installing."
+ echo ""
+ echo "If using Debian/Raspbian, then type this command:"
+ echo "  sudo apt-get install libi2c-dev"
+ echo "then run ./build again."
+ echo ""
+ echo "If using another Linux distribution, then you will have to"
+ echo "work out how to install the I2C Developmen Libraries for your"
+ echo "system. (Sorry - I don't know - do let me know though!)"
+ echo ""
+ exit 1
 }
 
 check-make-ok()
diff --git a/examples/Makefile b/examples/Makefile
index 3607fc8..e1d29a0 100644
--- a/examples/Makefile
+++ b/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]
diff --git a/gpio/Makefile b/gpio/Makefile
index 729a86b..623096c 100644
--- a/gpio/Makefile
+++ b/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
 ###############################################################################
diff --git a/gpio/gpio.c b/gpio/gpio.c
index 6615133..326dd2d 100644
--- a/gpio/gpio.c
+++ b/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 ;
 
diff --git a/wiringPi/Makefile b/wiringPi/Makefile
index 62e9d9b..0ba690f 100644
--- a/wiringPi/Makefile
+++ b/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)
diff --git a/wiringPi/softServo.c b/wiringPi/softServo.c
index a6ff1fb..9de9f4f 100644
--- a/wiringPi/softServo.c
+++ b/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
 
diff --git a/wiringPi/softTone.c b/wiringPi/softTone.c
index d14c2a2..8463627 100644
--- a/wiringPi/softTone.c
+++ b/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 ;
 
diff --git a/wiringPi/wiringPi.c b/wiringPi/wiringPi.c
index 36c49f5..9655db2 100644
--- a/wiringPi/wiringPi.c
+++ b/wiringPi/wiringPi.c
@@ -1204,7 +1204,11 @@ int wiringPiSetup (void)
   if ((fd = open ("/dev/mem", O_RDWR | O_SYNC) ) < 0)
   {
     if (wiringPiDebug)
-      fprintf (stderr, "wiringPiSetup: Unable to open /dev/mem: %s\n", strerror (errno)) ;
+    {
+      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)
-      fprintf (stderr, "wiringPiSetup: mmap failed: %s\n", strerror (errno)) ;
+    {
+      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)
-      fprintf (stderr, "wiringPiSetup: mmap failed (pwm): %s\n", strerror (errno)) ;
+    {
+      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)
-      fprintf (stderr, "wiringPiSetup: mmap failed (clk): %s\n", strerror (errno)) ;
+    {
+      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)
-      fprintf (stderr, "wiringPiSetup: mmap failed (pads): %s\n", strerror (errno)) ;
+    {
+      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)
-      fprintf (stderr, "wiringPiSetup: mmap failed (timer): %s\n", strerror (errno)) ;
+    {
+      int serr = errno ;
+	fprintf (stderr, "wiringPiSetup: mmap failed (timer): %s\n", strerror (errno)) ;
+      errno = serr ;
+    }
     return -1 ;
   }
 
diff --git a/wiringPi/wiringPi.h b/wiringPi/wiringPi.h
index 424e3bc..7626d28 100644
--- a/wiringPi/wiringPi.h
+++ b/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
 
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