From fe001d46fd06924bb81fe8d506f5be8894db3df0 Mon Sep 17 00:00:00 2001 From: Wilba6582 Date: Mon, 28 Nov 2016 18:31:16 +1100 Subject: Initial version of Raw HID interface --- tmk_core/protocol/lufa/lufa.c | 94 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) (limited to 'tmk_core/protocol/lufa/lufa.c') diff --git a/tmk_core/protocol/lufa/lufa.c b/tmk_core/protocol/lufa/lufa.c index 39d4824b6..aeb5f0781 100644 --- 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 + } } -- cgit v1.2.3