Add MAX_ENDPOINT_INDEX compile time option for the XMEGA devices.

diff --git a/LUFA/CodeTemplates/LUFAConfig.h b/LUFA/CodeTemplates/LUFAConfig.h
index 0c9dca3..06882dc 100644 (file)
--- a/LUFA/CodeTemplates/LUFAConfig.h
+++ b/LUFA/CodeTemplates/LUFAConfig.h
@@ -117,6 +117,7 @@
 //             #define DEVICE_STATE_AS_GPIOR            {Insert Value Here}
 //             #define FIXED_NUM_CONFIGURATIONS         {Insert Value Here}
 //             #define CONTROL_ONLY_DEVICE
+//             #define MAX_ENDPOINT_INDEX               {Insert Value Here}
 //             #define NO_DEVICE_REMOTE_WAKEUP
 //             #define NO_DEVICE_SELF_POWER
 

diff --git a/LUFA/DoxygenPages/CompileTimeTokens.txt b/LUFA/DoxygenPages/CompileTimeTokens.txt
index 8c348dd..79c4cd4 100644 (file)
--- a/LUFA/DoxygenPages/CompileTimeTokens.txt
+++ b/LUFA/DoxygenPages/CompileTimeTokens.txt
@@ -168,6 +168,10 @@
  *    is through control endpoint requests. Defining this token will remove several features related to the selection and control of device
  *    endpoints internally, saving space. Generally, this is usually only useful in (some) bootloaders and is best avoided.
  *
+ *  - <b>MAX_ENDPOINT_INDEX</b> - (\ref Group_Device) - <i>XMEGA Only</i> \n
+ *    Defining this value to the highest index (not address - this excludes the direction flag) endpoint within the device will restrict the
+ *    number of FIFOs created internally for the endpoint buffers, reducing the total RAM usage.
+ *
  *  - <b>INTERRUPT_CONTROL_ENDPOINT</b> - (\ref Group_USBManagement) - <i>All Architectures</i> \n
  *    Some applications prefer to not call the USB_USBTask() management task regularly while in device mode, as it can complicate code significantly.
  *    Instead, when device mode is used this token can be passed to the library via the -D switch to allow the library to manage the USB control

diff --git a/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h b/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h
index 23de8fc..8be20d2 100644 (file)
--- a/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h
+++ b/LUFA/Drivers/USB/Core/XMEGA/Endpoint_XMEGA.h
@@ -90,14 +90,18 @@
 
        /* Public Interface - May be used in end-application: */
                /* Macros: */
-                       #if !defined(CONTROL_ONLY_DEVICE) || defined(__DOXYGEN__)
+                       #if (!defined(MAX_ENDPOINT_INDEX) && !defined(CONTROL_ONLY_DEVICE)) || defined(__DOXYGEN__)
                                /** Total number of endpoints (including the default control endpoint at address 0) which may
                                 *  be used in the device. Different USB AVR models support different amounts of endpoints,
                                 *  this value reflects the maximum number of endpoints for the currently selected AVR model.
                                 */
                                #define ENDPOINT_TOTAL_ENDPOINTS            16
                        #else
-                               #define ENDPOINT_TOTAL_ENDPOINTS            1
+                               #if defined(CONTROL_ONLY_DEVICE)
+                                       #define ENDPOINT_TOTAL_ENDPOINTS        1
+                               #else
+                                       #define ENDPOINT_TOTAL_ENDPOINTS        (MAX_ENDPOINT_INDEX + 1)
+                               #endif
                        #endif
 
        /* Private Interface - For use in library only: */