Move public headers to include directories; related cleanups.

Move libmaple/*.h to (new) libmaple/include/libmaple/. The new
accepted way to include a libmaple header foo.h is with:

    #include <libmaple/foo.h>

This is more polite in terms of the include namespace. It also allows
us to e.g. implement the Arduino SPI library at all (which has header
SPI.h; providing it was previously impossible on case-insensitive
filesystems due to libmaple's spi.h).

Similarly for Wirish.

The old include style (#include "header.h") is now deprecated.

libmaple/*.h:

- Change include guard #defines from _FOO_H_ to _LIBMAPLE_FOO_H_.
- Add license headers where they're missing
- Add conditional extern "C" { ... } blocks where they're missing
  (they aren't always necessary, but we might was well do it against
  the future, while we're at it.).
- Change includes from #include "foo.h" to #include <libmaple/foo.h>.
- Move includes after extern "C".
- Remove extra trailing newlines

Note that this doesn't include the headers under libmaple/usb/ or
libmaple/usb/usb_lib. These will get fixed later.

libmaple/*.c:

- Change includes from #include "foo.h" to #include <libmaple/foo.h>.

Makefile:

- Add I$(LIBMAPLE_PATH)/include/libmaple to GLOBAL_FLAGS.  This allows
  for users (including Wirish) to migrate their code, but should go
  away ASAP, since it slows down compilation.

Wirish:

- Move wirish/**/*.h to (new) wirish/include/wirish/.  This ignores
  the USB headers, which, as usual, are getting handled after
  everything else.

- Similarly generify wirish/boards/ structure. For each supported
  board "foo", move wirish/boards/foo.h and wirish/boards/foo.cpp to
  wirish/boards/foo/include/board/board.h and
  wirish/boards/foo/board.cpp, respectively. Also remove the #ifdef
  hacks around the .cpp files.

- wirish/rules.mk: put wirish/boards/foo/include in the include path
  (and add wirish/boards/foo/board.cpp to the list of sources to be
  compiled). This allows saying:

      #include <board/board.h>

  instead of the hack currently in place. We can allow the user to
  override this setting later to make adding custom board definitions
  easier.

- Disable -Werror in libmaple/rules.mk, as the current USB warnings
  don't let the olimex_stm32_h103 board compile. We can re-enable
  -Werror once we've moved the board-specific bits out of libmaple
  proper.

libraries, examples:

- Update includes accordingly.
- Miscellaneous cosmetic fixups.

Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>

7 files changed, 13 insertions, 18 deletions

diff --git a/libraries/FreeRTOS/MapleFreeRTOS.h b/libraries/FreeRTOS/MapleFreeRTOS.h
index 839e3e2..dc06979 100644
--- a/libraries/FreeRTOS/MapleFreeRTOS.h
+++ b/libraries/FreeRTOS/MapleFreeRTOS.h
@@ -27,7 +27,7 @@
 #ifndef __MAPLE_FREERTOS_H__
 #define __MAPLE_FREERTOS_H__
 
-#include "wirish.h"
+#include <wirish/wirish.h>
 
 extern "C" {
 #define GCC_ARMCM3
diff --git a/libraries/LiquidCrystal/LiquidCrystal.cpp b/libraries/LiquidCrystal/LiquidCrystal.cpp
index 85e19ef..5cfb1ca 100644
--- a/libraries/LiquidCrystal/LiquidCrystal.cpp
+++ b/libraries/LiquidCrystal/LiquidCrystal.cpp
@@ -2,7 +2,7 @@
 
 #include <stdio.h>
 #include <string.h>
-#include "WProgram.h"
+#include <wirish/WProgram.h>
 
 // When the display powers up, it is configured as follows:
 //
diff --git a/libraries/LiquidCrystal/LiquidCrystal.h b/libraries/LiquidCrystal/LiquidCrystal.h
index 0baf543..06a159d 100644
--- a/libraries/LiquidCrystal/LiquidCrystal.h
+++ b/libraries/LiquidCrystal/LiquidCrystal.h
@@ -2,8 +2,8 @@
 #define LiquidCrystal_h
 
 //#include <inttypes.h>
-#include "wirish.h"
-#include "Print.h"
+#include <wirish/wirish.h>
+#include <wirish/Print.h>
 
 // commands
 #define LCD_CLEARDISPLAY 0x01
diff --git a/libraries/Servo/Servo.cpp b/libraries/Servo/Servo.cpp
index 8fbd366..ecb85e6 100644
--- a/libraries/Servo/Servo.cpp
+++ b/libraries/Servo/Servo.cpp
@@ -26,10 +26,10 @@
 
 #include "Servo.h"
 
-#include "boards.h"
-#include "io.h"
-#include "pwm.h"
-#include "wirish_math.h"
+#include <wirish/boards.h>
+#include <wirish/io.h>
+#include <wirish/pwm.h>
+#include <wirish/wirish_math.h>
 
 // 20 millisecond period config.  For a 1-based prescaler,
 //
diff --git a/libraries/Servo/Servo.h b/libraries/Servo/Servo.h
index 7753b4b..94e1e00 100644
--- a/libraries/Servo/Servo.h
+++ b/libraries/Servo/Servo.h
@@ -27,14 +27,10 @@
 #ifndef _SERVO_H_
 #define _SERVO_H_
 
-#include "libmaple_types.h"
-#include "timer.h"
+#include <libmaple/libmaple_types.h>
+#include <libmaple/timer.h>
 
-#include "wirish_types.h"
-
-#ifdef MAPLE_IDE
-#include "wirish.h"             /* hack for IDE compile */
-#endif
+#include <wirish/wirish_types.h>
 
 /*
  * Note on Arduino compatibility:
diff --git a/libraries/Wire/Wire.cpp b/libraries/Wire/Wire.cpp
index 753f831..8416525 100644
--- a/libraries/Wire/Wire.cpp
+++ b/libraries/Wire/Wire.cpp
@@ -30,7 +30,6 @@
  */
 
 #include "Wire.h"
-#include "wirish.h"
 
 /* low level conventions:
  * - SDA/SCL idle high (expected high)
diff --git a/libraries/Wire/Wire.h b/libraries/Wire/Wire.h
index d2f3608..0640c3b 100644
--- a/libraries/Wire/Wire.h
+++ b/libraries/Wire/Wire.h
@@ -29,11 +29,11 @@
  *  interface to I2C (two-wire) communication.
  */
 
-#include "wirish.h"
-
 #ifndef _WIRE_H_
 #define _WIRE_H_
 
+#include <wirish/wirish.h>
+
 typedef struct {
   uint8 scl;
   uint8 sda;