Windows fixes for libusb0

.gitignore

@@ -0,0 +1,44 @@
+# Compiled output
+*.bin
+*.d
+*.elf
+*.hex
+*.srec
+*.dfu
+host/build/
+
+# CMakeInternals
+CMakeFiles
+CMakeCache.txt
+
+# Compiled python files
+__pycache__/
+*.py[cod]
+*$py.class
+host/dist
+*.egg-info
+
+# Operating system spew
+.DS_Store
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# Editor junk
+*.swp
+*.sublime-project
+*.sublime-workspace
+.vscode
+.ccls-cache
+compile_commands.json
+
+
+# ctags output
+tags
+
+firmware/*/build
+
+# release files
+VERSION
+.eggs

firmware/CMakeLists.txt

@@ -0,0 +1,50 @@
+#
+# This file is part of GreatFET
+#
+cmake_minimum_required(VERSION 3.1.3)
+
+include(cmake/libgreat_prelude.cmake)
+project(libgreat C CXX ASM)
+include(cmake/libgreat.cmake)
+
+# Include any platform-specific targets desired.
+add_subdirectory(${PATH_LIBGREAT_FIRMWARE_PLATFORM})
+
+# Include the core libgreat library.
+add_libgreat_library_if_necessary(libgreat OBJECT
+
+	# Archictecture support.
+	# TODO: move me to an architecture support package?
+	${PATH_LIBGREAT_FIRMWARE_PLATFORM}/sync.c
+	${PATH_LIBGREAT_FIRMWARE_PLATFORM}/sync.S
+
+	${PATH_LIBGREAT_FIRMWARE_PLATFORM_DRIVERS}/arm_system_control.c
+)
+use_libgreat_modules(libgreat bsp) # Always include the board support package for the current board.
+
+# Provide a basic allocator.
+define_libgreat_module(allocator
+	${PATH_LIBGREAT_FIRMWARE_DRIVERS}/memory/allocator.c
+	${PATH_LIBGREAT_FIRMWARE_DRIVERS}/memory/allocator/umm_malloc.c
+)
+
+# Provide the core communications protocol.
+define_libgreat_module(comms
+	${PATH_LIBGREAT_FIRMWARE_DRIVERS}/comms/utils.c
+	${PATH_LIBGREAT_FIRMWARE_DRIVERS}/comms/comms_class.c
+	${PATH_LIBGREAT_FIRMWARE}/classes/core.c
+	${PATH_LIBGREAT_FIRMWARE}/classes/firmware.c
+)
+
+# DAC drivers.
+define_libgreat_module(ad970x
+	${PATH_LIBGREAT_FIRMWARE_DRIVERS}/dac/ad970x.c
+)
+
+# Scheduler.
+define_libgreat_module(scheduler
+	${PATH_LIBGREAT_FIRMWARE_DRIVERS}/scheduler.c
+)
+
+# FIXME: get rid of this
+add_dependencies(libgreat libopencm3)

firmware/classes/core.c

@@ -1,7 +1,7 @@
 /*
  * This file is part of libgreat
  *
- * Core communications class -- provides 
+ * Core communications class -- provides
  */
 
 #include <stddef.h>
@@ -17,28 +17,28 @@
 
 extern struct comms_class *class_head;
 
-WEAK int core_verb_read_board_id(struct command_transaction *trans)
+ATTR_WEAK int core_verb_read_board_id(struct command_transaction *trans)
 {
 	(void)trans;
 	return ENOSYS;
 }
 
 
-WEAK int core_verb_read_version_string(struct command_transaction *trans)
+ATTR_WEAK int core_verb_read_version_string(struct command_transaction *trans)
 {
 	(void)trans;
 	return ENOSYS;
 }
 
 
-WEAK int core_verb_read_part_id(struct command_transaction *trans)
+ATTR_WEAK int core_verb_read_part_id(struct command_transaction *trans)
 {
 	(void)trans;
 	return ENOSYS;
 }
 
 
-WEAK int core_verb_read_serial_number(struct command_transaction *trans)
+ATTR_WEAK int core_verb_read_serial_number(struct command_transaction *trans)
 {
 	(void)trans;
 	return ENOSYS;
@@ -47,7 +47,7 @@ WEAK int core_verb_read_serial_number(struct command_transaction *trans)
 /**
  * TODO: get me out of here!
  */
-WEAK int core_verb_request_reset(struct command_transaction *trans)
+ATTR_WEAK int core_verb_request_reset(struct command_transaction *trans)
 {
 	(void)trans;
 	return ENOSYS;
@@ -56,14 +56,14 @@ WEAK int core_verb_request_reset(struct command_transaction *trans)
 
 /**
  * Internal introspection command that returns the list of supported classes.
- */ 
+ */
 static int verb_get_available_classes(struct command_transaction *trans)
 {
 	struct comms_class *cls;
 
 	// Add each class number to the list.
 	for (cls = class_head; cls; cls = cls->next) {
-		comms_response_add_uint32_t(trans, cls->class_number);	
+		comms_response_add_uint32_t(trans, cls->class_number);
 	}
 
 	return 0;
@@ -72,7 +72,7 @@ static int verb_get_available_classes(struct command_transaction *trans)
 
 /**
  * Internal introspection command that returns the list of supported classes.
- */ 
+ */
 static int verb_get_verb_name(struct command_transaction *trans)
 {
 	uint32_t class_number = comms_argument_parse_uint32_t(trans);
@@ -110,7 +110,7 @@ enum verb_descriptor_request {
 
 /**
  * Internal introspection command that returns information about a verb.
- */ 
+ */
 static int verb_get_verb_descriptor(struct command_transaction *trans)
 {
 	uint32_t class_number = comms_argument_parse_uint32_t(trans);
@@ -155,7 +155,7 @@ static int verb_get_verb_descriptor(struct command_transaction *trans)
 
 /**
  * Internal introspection command that returns the list of verbs for a given class.
- */ 
+ */
 static int verb_get_available_verbs(struct command_transaction *trans)
 {
 	uint32_t class_number = comms_argument_parse_uint32_t(trans);
@@ -171,7 +171,7 @@ static int verb_get_available_verbs(struct command_transaction *trans)
 
 	// Iterate through the array of command verbs, adding them to our response.
 	for (verb = relevant_class->command_verbs; verb->handler; ++verb) {
-		comms_response_add_uint32_t(trans, verb->verb_number);	
+		comms_response_add_uint32_t(trans, verb->verb_number);
 	}
 
 	return 0;
@@ -181,7 +181,7 @@ static int verb_get_available_verbs(struct command_transaction *trans)
 
 /**
  * Internal introspection command that returns the name for a given class.
- */ 
+ */
 static int verb_get_class_name(struct command_transaction *trans)
 {
 	uint32_t class_number = comms_argument_parse_uint32_t(trans);
@@ -203,7 +203,7 @@ static int verb_get_class_name(struct command_transaction *trans)
 
 /**
  * Internal introspection command that returns the documentation for a given class.
- */ 
+ */
 static int verb_get_class_docs(struct command_transaction *trans)
 {
 	uint32_t class_number = comms_argument_parse_uint32_t(trans);

firmware/classes/firmware.c

@@ -28,7 +28,7 @@
  *  - a uint32_t that indicates the device's page size in bytes.
  *  - a uint32_t that indicates the device's total size, in bytes
  */
-WEAK int firmware_verb_initialize(struct command_transaction *trans)
+ATTR_WEAK int firmware_verb_initialize(struct command_transaction *trans)
 {
 	(void)trans;
 	return ENOSYS;
@@ -40,7 +40,7 @@ WEAK int firmware_verb_initialize(struct command_transaction *trans)
  *
  * Accepts no arguments.
  */
-WEAK int firmware_verb_full_erase(struct command_transaction *trans)
+ATTR_WEAK int firmware_verb_full_erase(struct command_transaction *trans)
 {
 	(void)trans;
 	return ENOSYS;
@@ -51,7 +51,7 @@ WEAK int firmware_verb_full_erase(struct command_transaction *trans)
  *
  * Accepts a uint32_t that indicates the address.
  */
-WEAK int firmware_verb_erase_page(struct command_transaction *trans)
+ATTR_WEAK int firmware_verb_erase_page(struct command_transaction *trans)
 {
 	(void)trans;
 	return ENOSYS;
@@ -63,7 +63,7 @@ WEAK int firmware_verb_erase_page(struct command_transaction *trans)
  *
  * Accepts a uint32_t that is the address; followed by a single page of data.
  */
-WEAK int firmware_verb_write_page(struct command_transaction *trans)
+ATTR_WEAK int firmware_verb_write_page(struct command_transaction *trans)
 {
 	(void)trans;
 	return ENOSYS;
@@ -76,7 +76,7 @@ WEAK int firmware_verb_write_page(struct command_transaction *trans)
  * Accepts a uint32_t that is the address.
  * Returns the relevant page.
  */
-WEAK int firmware_verb_read_page(struct command_transaction *trans)
+ATTR_WEAK int firmware_verb_read_page(struct command_transaction *trans)
 {
 	(void)trans;
 	return ENOSYS;

firmware/cmake/compatibility.cmake

@@ -0,0 +1,58 @@
+#
+# This file is part of libgreat.
+# Compatibilty stub that enables us to work down to CMake 3.0.
+#
+
+# Compatibility with older CMake versions:
+
+# Target link options are called using target_link_libraries in older versions of cmake.
+if (NOT COMMAND target_link_options)
+    function(target_link_options)
+        target_link_libraries(${ARGN})
+    endfunction(target_link_options)
+endif()
+
+# We can't use target_link_directories in older cmake; so we'll manually generate the flags for these directories.
+if (NOT COMMAND target_link_directories)
+    function(target_link_directories TARGET SCOPE)
+
+        # Add each directory to the search path.
+        foreach (DIRECTORY ${ARGN})
+            target_link_options(${TARGET} ${SCOPE} "-L${DIRECTORY}")
+        endforeach(DIRECTORY)
+
+    endfunction(target_link_directories)
+endif()
+
+# include_guard() is too new; so we'll emulate it for older verseions of cmake.
+if (NOT COMMAND include_guard)
+    macro(include_guard)
+
+        # Detemrine which scope we should use.
+        if(${ARGN})
+            if(${ARGN} STREQUAL "GLOBAL")
+                set(SCOPE "GLOBAL")
+            else()
+                set(SCOPE "DIRECTORY")
+            endif()
+        else()
+            set(SCOPE "VARIABLE")
+        endif()
+
+        # Check to see if a relevant variable has ever been included in this scope.
+        set(__filename "${CMAKE_CURRENT_LIST_FILE}")
+        get_property(already_included ${SCOPE} PROPERTY "pr_${__filename}")
+
+        # If we have been included, abort.
+        if(already_included)
+            return()
+        endif()
+
+        # Set a properly-scoped variable that will indicate that this has already been included.
+        if("${SCOPE}" STREQUAL "VARIABLE")
+            set("pr_${__filename}" TRUE)
+        else()
+            set_property("${SCOPE}" PROPERTY "pr_${__filename}")
+        endif()
+    endmacro(include_guard)
+endif()