Add code to start the USBB Generic Clock from the user-specified master clock source...

diff --git a/LUFA/Drivers/USB/Core/UC3B/USBController_UC3B.c b/LUFA/Drivers/USB/Core/UC3B/USBController_UC3B.c
index 88dbcda..ee25de7 100644 (file)
--- a/LUFA/Drivers/USB/Core/UC3B/USBController_UC3B.c
+++ b/LUFA/Drivers/USB/Core/UC3B/USBController_UC3B.c
@@ -92,6 +92,8 @@ void USB_Disable(void)
        USB_CurrentMode = USB_MODE_None;\r
        #endif\r
 \r
+       AVR32_PM.GCCTRL[3].cen = false;\r
+\r
        USB_IsInitialized = false;\r
 }\r
 \r
@@ -105,6 +107,12 @@ void USB_ResetInterface(void)
        USB_INT_ClearAllInterrupts();\r
 \r
        USB_Controller_Reset();\r
+       \r
+       AVR32_PM.GCCTRL[USB_GCLK_USBB_INDEX].pllsel = !(USB_Options & USB_OPT_GCLK_SRC_OSC);\r
+       AVR32_PM.GCCTRL[USB_GCLK_USBB_INDEX].oscsel = !(USB_Options & USB_OPT_GCLK_CHANNEL_0);\r
+       AVR32_PM.GCCTRL[USB_GCLK_USBB_INDEX].diven  = (F_CLOCK != 48000000UL);\r
+       AVR32_PM.GCCTRL[USB_GCLK_USBB_INDEX].div    = ((F_CLOCK / 2) / 48000000UL);\r
+       AVR32_PM.GCCTRL[USB_GCLK_USBB_INDEX].cen    = true;\r
 \r
        #if defined(USB_CAN_BE_BOTH)\r
        if (UIDModeSelectEnabled)\r

diff --git a/LUFA/Drivers/USB/Core/UC3B/USBController_UC3B.h b/LUFA/Drivers/USB/Core/UC3B/USBController_UC3B.h
index 56ee252..5bfcb5b 100644 (file)
--- a/LUFA/Drivers/USB/Core/UC3B/USBController_UC3B.h
+++ b/LUFA/Drivers/USB/Core/UC3B/USBController_UC3B.h
@@ -82,6 +82,27 @@
 \r
        /* Public Interface - May be used in end-application: */\r
                /* Macros: */\r
+                       /** \name USB Controller Option Masks */\r
+                       //@{\r
+                       /** Selects one of the system's main clock oscillators as the input clock to the USB Generic Clock source\r
+                        *  generation module. This indicates that an external oscillator should be used directly instead of an\r
+                        *  internal PLL clock source.\r
+                        */\r
+                       #define USB_OPT_GCLK_SRC_OSC               (1 << 1)\r
+\r
+                       /** Selects one of the system's PLL oscillators as the input clock to the USB Generic Clock source\r
+                        *  generation module. This indicates that one of the device's PLL outputs should be used instead of an\r
+                        *  external oscillator source.\r
+                        */\r
+                       #define USB_OPT_GCLK_SRC_PLL               (0 << 1)\r
+\r
+                       /** Selects PLL or External Oscillator 0 as the USB Generic Clock source module input clock. */\r
+                       #define USB_OPT_GCLK_CHANNEL_0             (1 << 2)\r
+\r
+                       /** Selects PLL or External Oscillator 1 as the USB Generic Clock source module input clock. */\r
+                       #define USB_OPT_GCLK_CHANNEL_1             (0 << 2)\r
+                       //@}\r
+\r
                        /** \name Endpoint/Pipe Type Masks */\r
                        //@{\r
                        /** Mask for a CONTROL type endpoint or pipe.\r
@@ -272,6 +293,9 @@
 \r
        /* Private Interface - For use in library only: */\r
        #if !defined(__DOXYGEN__)\r
+               /* Macros: */\r
+                       #define USB_GCLK_USBB_INDEX          3\r
+       \r
                /* Function Prototypes: */\r
                        #if defined(__INCLUDE_FROM_USB_CONTROLLER_C)\r
                                #if defined(USB_CAN_BE_DEVICE)\r