added trivial simulator.c

Though it’s nice, as it’s part of the build process to run the
simulator - so if your app crashes, it won’t even get as far as the
device.

2 files changed, 124 insertions, 3 deletions

diff --git a/Makefile b/Makefile
index 8c91f24..3e15b46 100644
--- a/Makefile
+++ b/Makefile
@@ -14,8 +14,10 @@ LIB = lib/launchpad_pro.a
 ELF = $(BUILDDIR)/launchpad_pro.elf
 HEX = $(BUILDDIR)/launchpad_pro.hex
 HEXTOSYX = $(BUILDDIR)/hextosyx
+SIMULATOR = $(BUILDDIR)/simulator
 
-HOST_CC = g++
+HOST_GPP = g++
+HOST_GCC = gcc
 CC = arm-none-eabi-gcc
 LD = arm-none-eabi-gcc
 OBJCOPY = arm-none-eabi-objcopy
@@ -33,12 +35,17 @@ LDFLAGS += -T$(LDSCRIPT) -u _start -u _Minimum_Stack_Size  -mcpu=cortex-m3 -mthu
 all: $(SYX)
 
 # build the final sysex file from the ELF
-$(SYX): $(HEX) $(HEXTOSYX)
+$(SYX): $(HEX) $(HEXTOSYX) $(SIMULATOR)
+        ./$(SIMULATOR)
         ./$(HEXTOSYX) $(HEX) $(SYX)
 
 # build the tool for conversion of ELF files to sysex ready for upload to the unit
 $(HEXTOSYX):
-        $(HOST_CC) -Ofast -std=c++0x -I./$(TOOLS)/libintelhex/include ./$(TOOLS)/libintelhex/src/intelhex.cc $(TOOLS)/hextosyx.cpp -o $(HEXTOSYX)
+        $(HOST_GPP) -Ofast -std=c++0x -I./$(TOOLS)/libintelhex/include ./$(TOOLS)/libintelhex/src/intelhex.cc $(TOOLS)/hextosyx.cpp -o $(HEXTOSYX)
+
+# build the simulator and run it (it's a very basic test of the code before it runs on the device!)
+$(SIMULATOR):
+        $(HOST_GCC) -O0 -std=c99 -Iinclude $(TOOLS)/simulator.c src/app.c -o $(SIMULATOR)
 
 $(HEX): $(ELF)
         $(OBJCOPY) -O ihex $< $@
diff --git a/tools/simulator.c b/tools/simulator.c
new file mode 100644
index 0000000..56298d7
--- /dev/null
+++ b/tools/simulator.c
@@ -0,0 +1,114 @@
+/******************************************************************************
+ 
+ Copyright (c) 2015, Focusrite Audio Engineering Ltd.
+ All rights reserved.
+ 
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+ 
+ * Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ 
+ * Neither the name of Focusrite Audio Engineering Ltd., nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+ 
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ 
+ *****************************************************************************/
+
+#include <stdio.h>
+#include "app.h"
+
+// ____________________________________________________________________________
+//
+// Simulator "hal".  This lets you exercise your device code without having to upload
+// it to the hardware, which also means you can debug it interactively.
+// ____________________________________________________________________________
+
+void hal_plot_led(u8 type, u8 index, u8 red, u8 green, u8 blue)
+{
+        // wire this up to MIDI out...
+        printf("...hal_plot_led(%d, %d, %d, %d, %d);\n", type, index, red, green, blue);
+}
+
+void hal_send_midi(u8 port, u8 status, u8 d1, u8 d2)
+{
+        // send this up a virtual MIDI port?
+        printf("...hal_send_midi(%d, 0x%2.2x, 0x%2.2x, 0x%2.2x);\n", port, status, d1, d2);
+}
+
+void hal_send_sysex(u8 port, const u8* data, u16 length)
+{
+        // as above, or just dump to console?
+        printf("...hal_send_midi(%d, (data), %d);\n", port, length);
+}
+
+// ____________________________________________________________________________
+//
+// App event wrappers - these just log to the console.  Would be nice to wire
+// these up to a MIDI input from the real Launchpad Pro!
+// ____________________________________________________________________________
+
+static void sim_app_init()
+{
+        printf("calling app_init()...\n");
+        app_init();
+}
+
+static void sim_app_surface_event(u8 type, u8 index, u8 value)
+{
+        printf("calling sim_app_surface_event(%d, %d, %d)...\n", type, index, value);
+        app_surface_event(type, index, value);
+}
+
+static void sim_app_midi_event(u8 port, u8 status, u8 d1, u8 d2)
+{
+        printf("calling app_midi_event(%d, 0x%2.2x, 0x%2.2x, 0x%2.2x)...\n", port, status, d1, d2);
+        app_midi_event(port, status, d1, d2);
+}
+
+static void sim_app_timer_event()
+{
+        printf("calling app_timer_event()...\n");
+        app_timer_event();
+}
+
+// ____________________________________________________________________________
+
+int main(int argc, char * argv[])
+{
+        // let's just call a few things to give the app a very brief workout.
+        sim_app_init();
+        
+        // surface
+        sim_app_surface_event(TYPEPAD, 35, 127);
+        sim_app_surface_event(TYPESETUP, 0, 127);
+        sim_app_surface_event(TYPEPAD, 35, 0);
+        
+        // MIDI
+        sim_app_midi_event(USBSTANDALONE, NOTEON, 60, 127);
+        sim_app_midi_event(USBSTANDALONE, NOTEON, 60, 0);
+        
+        // timer
+        const int timerTicks = 21;
+        printf("sending %d timer events via app_timer_event()...\n", timerTicks);
+        for (int i=0; i < timerTicks; ++i)
+        {
+                sim_app_timer_event();
+        }
+        return 0;
+}
\ No newline at end of file