Fix to HID device mode Class driver, so that new reports are compared against the...

diff --git a/Demos/Device/ClassDriver/CDC/CDC.c b/Demos/Device/ClassDriver/CDC/CDC.c
index 1bcb464..8e3530c 100644 (file)
--- a/Demos/Device/ClassDriver/CDC/CDC.c
+++ b/Demos/Device/ClassDriver/CDC/CDC.c
@@ -91,7 +91,7 @@ int main(void)
        for (;;)\r
        {\r
                CheckJoystickMovement();\r
-               \r
+                \r
                /* Must throw away unused bytes from the host, or it will lock up while waiting for the device */\r
                while (CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface))\r
                  CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);\r

diff --git a/Demos/Device/ClassDriver/GenericHID/GenericHID.c b/Demos/Device/ClassDriver/GenericHID/GenericHID.c
index 72063b6..b04f7af 100644 (file)
--- a/Demos/Device/ClassDriver/GenericHID/GenericHID.c
+++ b/Demos/Device/ClassDriver/GenericHID/GenericHID.c
@@ -48,8 +48,6 @@ USB_ClassInfo_HID_Device_t Generic_HID_Interface =
 \r
                                .ReportINEndpointNumber  = GENERIC_IN_EPNUM,\r
                                .ReportINEndpointSize    = GENERIC_EPSIZE,\r
-                               \r
-                               .ReportINBufferSize      = GENERIC_REPORT_SIZE,\r
                        },\r
        };\r
 \r

diff --git a/Demos/Device/ClassDriver/Joystick/Joystick.c b/Demos/Device/ClassDriver/Joystick/Joystick.c
index 9a1080c..d9ff6ca 100644 (file)
--- a/Demos/Device/ClassDriver/Joystick/Joystick.c
+++ b/Demos/Device/ClassDriver/Joystick/Joystick.c
@@ -48,8 +48,6 @@ USB_ClassInfo_HID_Device_t Joystick_HID_Interface =
 \r
                                .ReportINEndpointNumber  = JOYSTICK_EPNUM,\r
                                .ReportINEndpointSize    = JOYSTICK_EPSIZE,\r
-                               \r
-                               .ReportINBufferSize      = sizeof(USB_JoystickReport_Data_t),\r
                        },\r
        };\r
 \r

diff --git a/Demos/Device/ClassDriver/Keyboard/Keyboard.c b/Demos/Device/ClassDriver/Keyboard/Keyboard.c
index ba0d239..cd8c3e6 100644 (file)
--- a/Demos/Device/ClassDriver/Keyboard/Keyboard.c
+++ b/Demos/Device/ClassDriver/Keyboard/Keyboard.c
@@ -49,8 +49,6 @@ USB_ClassInfo_HID_Device_t Keyboard_HID_Interface =
 \r
                                .ReportINEndpointNumber  = KEYBOARD_EPNUM,\r
                                .ReportINEndpointSize    = KEYBOARD_EPSIZE,\r
-\r
-                               .ReportINBufferSize      = sizeof(USB_KeyboardReport_Data_t),\r
                        },\r
     };\r
 \r

diff --git a/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c b/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
index 241553c..45a2c52 100644 (file)
--- a/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
+++ b/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
@@ -50,8 +50,6 @@ USB_ClassInfo_HID_Device_t Keyboard_HID_Interface =
 \r
                                .ReportINEndpointNumber  = KEYBOARD_IN_EPNUM,\r
                                .ReportINEndpointSize    = HID_EPSIZE,\r
-                               \r
-                               .ReportINBufferSize      = sizeof(USB_KeyboardReport_Data_t),\r
                        },\r
        };\r
        \r
@@ -68,8 +66,6 @@ USB_ClassInfo_HID_Device_t Mouse_HID_Interface =
 \r
                                .ReportINEndpointNumber  = MOUSE_IN_EPNUM,\r
                                .ReportINEndpointSize    = HID_EPSIZE,\r
-\r
-                               .ReportINBufferSize      = sizeof(USB_MouseReport_Data_t),\r
                        },\r
                        \r
                .State =\r

diff --git a/Demos/Device/ClassDriver/Mouse/Mouse.c b/Demos/Device/ClassDriver/Mouse/Mouse.c
index 4bb1fa1..4489434 100644 (file)
--- a/Demos/Device/ClassDriver/Mouse/Mouse.c
+++ b/Demos/Device/ClassDriver/Mouse/Mouse.c
@@ -48,8 +48,6 @@ USB_ClassInfo_HID_Device_t Mouse_HID_Interface =
 \r
                                .ReportINEndpointNumber  = MOUSE_EPNUM,\r
                                .ReportINEndpointSize    = MOUSE_EPSIZE,\r
-\r
-                               .ReportINBufferSize      = sizeof(USB_MouseReport_Data_t),\r
                        },\r
        };\r
 \r

diff --git a/LUFA/Drivers/USB/Class/Device/HID.c b/LUFA/Drivers/USB/Class/Device/HID.c
index 43f11ee..4c13436 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/HID.c
+++ b/LUFA/Drivers/USB/Class/Device/HID.c
@@ -51,7 +51,7 @@ void HID_Device_ProcessControlPacket(USB_ClassInfo_HID_Device_t* const HIDInterf
                        {\r
                                Endpoint_ClearSETUP();  \r
 \r
-                               uint8_t  ReportINData[HIDInterfaceInfo->Config.ReportINBufferSize];\r
+                               uint8_t  ReportINData[HID_MAX_REPORT_SIZE];\r
                                uint16_t ReportINSize;\r
                                uint8_t  ReportID = (USB_ControlRequest.wValue & 0xFF);\r
 \r
@@ -150,27 +150,32 @@ bool HID_Device_ConfigureEndpoints(USB_ClassInfo_HID_Device_t* const HIDInterfac
                \r
 void HID_Device_USBTask(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo)\r
 {\r
+       static uint8_t PreviousReportINData[HID_MAX_REPORT_SIZE];\r
+\r
        if (USB_DeviceState != DEVICE_STATE_Configured)\r
          return;\r
 \r
        Endpoint_SelectEndpoint(HIDInterfaceInfo->Config.ReportINEndpointNumber);\r
        \r
-       if (Endpoint_IsReadWriteAllowed() &&\r
-           !(HIDInterfaceInfo->State.IdleCount && HIDInterfaceInfo->State.IdleMSRemaining))\r
+       if (Endpoint_IsReadWriteAllowed())\r
        {\r
-               if (HIDInterfaceInfo->State.IdleCount && !(HIDInterfaceInfo->State.IdleMSRemaining))\r
-                 HIDInterfaceInfo->State.IdleMSRemaining = HIDInterfaceInfo->State.IdleCount;\r
-\r
-               uint8_t  ReportINData[HIDInterfaceInfo->Config.ReportINBufferSize];\r
-               uint16_t ReportINSize;\r
+               uint8_t  ReportINData[HID_MAX_REPORT_SIZE];\r
                uint8_t  ReportID = 0;\r
+               uint16_t ReportINSize;\r
 \r
                memset(ReportINData, 0, sizeof(ReportINData));\r
 \r
-               ReportINSize = CALLBACK_HID_Device_CreateHIDReport(HIDInterfaceInfo, &ReportID, ReportINData);\r
+               ReportINSize  = CALLBACK_HID_Device_CreateHIDReport(HIDInterfaceInfo, &ReportID, ReportINData);\r
 \r
-               if (ReportINSize)\r
+               bool StatesChanged     = (memcmp(ReportINData, PreviousReportINData, ReportINSize) != 0);\r
+               bool IdlePeriodElapsed = (HIDInterfaceInfo->State.IdleCount && !(HIDInterfaceInfo->State.IdleMSRemaining));\r
+               \r
+               memcpy(PreviousReportINData, ReportINData, ReportINSize);\r
+\r
+               if (ReportINSize && (StatesChanged || IdlePeriodElapsed))\r
                {\r
+                       HIDInterfaceInfo->State.IdleMSRemaining = HIDInterfaceInfo->State.IdleCount;\r
+\r
                        if (ReportID)\r
                          Endpoint_Write_Stream_LE(&ReportID, sizeof(ReportID), NO_STREAM_CALLBACK);\r
 \r

diff --git a/LUFA/Drivers/USB/Class/Device/HID.h b/LUFA/Drivers/USB/Class/Device/HID.h
index 87f96c6..61f43a1 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/HID.h
+++ b/LUFA/Drivers/USB/Class/Device/HID.h
@@ -56,6 +56,17 @@
                #endif\r
 \r
        /* Public Interface - May be used in end-application: */\r
+               /* Macros: */\r
+                       #if !defined(HID_MAX_REPORT_SIZE)\r
+                               /** Maximum size of an IN report which can be generated by the device and sent to the host, in bytes.\r
+                                *\r
+                                *  \note If larger reports than the default specified here are to be generated by the device, this\r
+                                *        value can be overridden by defining this token to the required value in the project makefile\r
+                                *        and passing it to the compiler via the -D switch.\r
+                                */\r
+                               #define HID_MAX_REPORT_SIZE     16\r
+                       #endif\r
+       \r
                /* Type Defines: */\r
                        /** Class state structure. An instance of this structure should be made for each HID interface\r
                         *  within the user application, and passed to each of the HID class driver functions as the\r
@@ -68,19 +79,15 @@
                                        uint8_t  InterfaceNumber; /**< Interface number of the HID interface within the device */\r
 \r
                                        uint8_t  ReportINEndpointNumber; /**< Endpoint number of the HID interface's IN report endpoint */\r
-                                       uint16_t ReportINEndpointSize; /**< Size in bytes of the HID interface's IN report endpoint */\r
-                                       \r
-                                       uint8_t  ReportINBufferSize; /**< Size of the largest possible report to send to the host, for\r
-                                                                                                 *   buffer allocation purposes\r
-                                                                                                 */\r
+                                       uint16_t ReportINEndpointSize; /**< Size in bytes of the HID interface's IN report endpoint */                                  \r
                                } Config; /**< Config data for the USB class interface within the device. All elements in this section\r
                                           *   <b>must</b> be set or the interface will fail to enumerate and operate correctly.\r
                                           */                                                                            \r
                                struct\r
                                {\r
                                        bool     UsingReportProtocol; /**< Indicates if the HID interface is set to Boot or Report protocol mode */\r
-                                       uint16_t IdleCount; /**< Report idle period, in ms, set by the host */\r
-                                       uint16_t IdleMSRemaining; /**< Total number of ms remaining before the idle period elapsed - this should be\r
+                                       uint16_t IdleCount; /**< Report idle period, in mS, set by the host */\r
+                                       uint16_t IdleMSRemaining; /**< Total number of mS remaining before the idle period elapsed - this should be\r
                                                                                           *   decremented by the user application if non-zero each millisecond */                      \r
                                } State; /**< State data for the USB class interface within the device. All elements in this section\r
                                          *   are reset to their defaults when the interface is enumerated.\r

diff --git a/Projects/Magstripe/Magstripe.c b/Projects/Magstripe/Magstripe.c
index aaa432d..898ad3c 100644 (file)
--- a/Projects/Magstripe/Magstripe.c
+++ b/Projects/Magstripe/Magstripe.c
@@ -57,8 +57,6 @@ USB_ClassInfo_HID_Device_t Keyboard_HID_Interface =
 \r
                                .ReportINEndpointNumber  = KEYBOARD_EPNUM,\r
                                .ReportINEndpointSize    = KEYBOARD_EPSIZE,\r
-                               \r
-                               .ReportINBufferSize      = sizeof(USB_KeyboardReport_Data_t),\r
                        },\r
        };\r
 \r