Initial version of Raw HID interface

[qmk_firmware.git] / tmk_core / protocol / lufa / lufa.c

diff --git a/tmk_core/protocol/lufa/lufa.c b/tmk_core/protocol/lufa/lufa.c
index 39d4824b6b9cb6a5b5c56394d720a021bb1cb70f..aeb5f07815378f1da7f37c0f38080cabad30621d 100644 (file)
--- a/tmk_core/protocol/lufa/lufa.c
+++ b/tmk_core/protocol/lufa/lufa.c
@@ -80,6 +80,10 @@
   #include "sysex_tools.h"
 #endif
 
+#ifdef RAW_ENABLE
+       #include "raw_hid.h"
+#endif
+
 uint8_t keyboard_idle = 0;
 /* 0: Boot Protocol, 1: Report Protocol(default) */
 uint8_t keyboard_protocol = 1;
@@ -175,6 +179,80 @@ USB_ClassInfo_CDC_Device_t cdc_device =
 };
 #endif
 
+#ifdef RAW_ENABLE
+
+void raw_hid_send( uint8_t *data, uint8_t length )
+{
+       // TODO: implement variable size packet
+       if ( length != RAW_EPSIZE )
+       {
+               return;
+       }
+
+       if (USB_DeviceState != DEVICE_STATE_Configured)
+       {
+               return;
+       }
+
+       // TODO: decide if we allow calls to raw_hid_send() in the middle
+       // of other endpoint usage.
+       uint8_t ep = Endpoint_GetCurrentEndpoint();
+
+       Endpoint_SelectEndpoint(RAW_IN_EPNUM);
+
+       // Check to see if the host is ready to accept another packet
+       if (Endpoint_IsINReady())
+       {
+               // Write data
+               Endpoint_Write_Stream_LE(data, RAW_EPSIZE, NULL);
+               // Finalize the stream transfer to send the last packet
+               Endpoint_ClearIN();
+       }
+
+       Endpoint_SelectEndpoint(ep);
+}
+
+__attribute__ ((weak))
+void raw_hid_receive( uint8_t *data, uint8_t length )
+{
+       // Users should #include "raw_hid.h" in their own code
+       // and implement this function there. Leave this as weak linkage
+       // so users can opt to not handle data coming in.
+}
+
+static void raw_hid_task(void)
+{
+       // Create a temporary buffer to hold the read in data from the host
+       uint8_t data[RAW_EPSIZE];
+       bool data_read = false;
+
+       // Device must be connected and configured for the task to run
+       if (USB_DeviceState != DEVICE_STATE_Configured)
+       return;
+
+       Endpoint_SelectEndpoint(RAW_OUT_EPNUM);
+
+       // Check to see if a packet has been sent from the host
+       if (Endpoint_IsOUTReceived())
+       {
+               // Check to see if the packet contains data
+               if (Endpoint_IsReadWriteAllowed())
+               {
+                       /* Read data */
+                       Endpoint_Read_Stream_LE(data, sizeof(data), NULL);
+                       data_read = true;
+               }
+
+               // Finalize the stream transfer to receive the last packet
+               Endpoint_ClearOUT();
+
+               if ( data_read )
+               {
+                       raw_hid_receive( data, sizeof(data) );
+               }
+       }
+}
+#endif
 
 /*******************************************************************************
  * Console
@@ -294,6 +372,8 @@ void EVENT_USB_Device_WakeUp()
 #endif
 }
 
+
+
 #ifdef CONSOLE_ENABLE
 static bool console_flush = false;
 #define CONSOLE_FLUSH_SET(b)   do { \
@@ -311,6 +391,7 @@ void EVENT_USB_Device_StartOfFrame(void)
     Console_Task();
     console_flush = false;
 }
+
 #endif
 
 /** Event handler for the USB_ConfigurationChanged event.
@@ -339,6 +420,14 @@ void EVENT_USB_Device_ConfigurationChanged(void)
                                      EXTRAKEY_EPSIZE, ENDPOINT_BANK_SINGLE);
 #endif
 
+#ifdef RAW_ENABLE
+    /* Setup Raw HID Report Endpoints */
+    ConfigSuccess &= ENDPOINT_CONFIG(RAW_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
+                                                                        RAW_EPSIZE, ENDPOINT_BANK_SINGLE);
+    ConfigSuccess &= ENDPOINT_CONFIG(RAW_OUT_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_OUT,
+                                                                        RAW_EPSIZE, ENDPOINT_BANK_SINGLE);
+#endif
+
 #ifdef CONSOLE_ENABLE
     /* Setup Console HID Report Endpoints */
     ConfigSuccess &= ENDPOINT_CONFIG(CONSOLE_IN_EPNUM, EP_TYPE_INTERRUPT, ENDPOINT_DIR_IN,
@@ -1064,9 +1153,14 @@ int main(void)
         CDC_Device_USBTask(&cdc_device);
 #endif
 
+#ifdef RAW_ENABLE
+        raw_hid_task();
+#endif
+
 #if !defined(INTERRUPT_CONTROL_ENDPOINT)
         USB_USBTask();
 #endif
+
     }
 }