static uint8_t Bluetooth_SendHCICommand(void* Parameters, uint16_t ParameterLength)
{
/* Need to reserve the amount of bytes given in the header for the complete payload */
uint8_t CommandBuffer[sizeof(HCICommandHeader) + HCICommandHeader.ParameterLength];
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_DEVICE),
.bRequest = 0,
.wValue = 0,
.wIndex = 0,
.wLength = sizeof(CommandBuffer)
};
/* Copy over the HCI command header to the allocated buffer */
memcpy(CommandBuffer, &HCICommandHeader, sizeof(HCICommandHeader));
/* Zero out the parameter section of the response to ensure that any padding bytes do not expose private RAM contents */
memset(&CommandBuffer[sizeof(HCICommandHeader)], 0x00, HCICommandHeader.ParameterLength);
/* Copy over the command parameters (if any) to the command buffer - note, the number of actual source parameter bytes
may differ to those in the header; any difference in length is filled with 0x00 padding bytes */
memcpy(&CommandBuffer[sizeof(HCICommandHeader)], Parameters, ParameterLength);
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(CommandBuffer);
}
static uint8_t Bluetooth_SendHCICommand(void* Parameters, uint8_t ParamLength)
{
uint8_t CommandBuffer[sizeof(HCICommandHeader) + HCICommandHeader.ParameterLength];
USB_HostRequest = (USB_Host_Request_Header_t)
{
bmRequestType: (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_DEVICE),
bRequest: 0,
wValue: 0,
wIndex: 0,
wLength: sizeof(CommandBuffer)
};
memset(CommandBuffer, 0x00, sizeof(CommandBuffer));
memcpy(CommandBuffer, &HCICommandHeader, sizeof(HCICommandHeader));
if (ParamLength)
memcpy(&CommandBuffer[sizeof(HCICommandHeader)], Parameters, ParamLength);
return USB_Host_SendControlRequest(CommandBuffer);
}
static bool Bluetooth_GetNextHCIEventHeader(void)
{
Pipe_SelectPipe(BLUETOOTH_EVENTS_PIPE);
Pipe_Unfreeze();
if (!(Pipe_ReadWriteAllowed()))
return false;
Pipe_Read_Stream_LE(&HCIEventHeader, sizeof(HCIEventHeader));
return true;
}
uint8_t Audio_Host_GetSetEndpointProperty(USB_ClassInfo_Audio_Host_t* const AudioInterfaceInfo,
const uint8_t DataPipeIndex,
const uint8_t EndpointProperty,
const uint8_t EndpointControl,
const uint16_t DataLength,
void* const Data)
{
if (!(AudioInterfaceInfo->State.IsActive))
return HOST_SENDCONTROL_DeviceDisconnected;
uint8_t RequestType;
uint8_t EndpointAddress;
if (EndpointProperty & 0x80)
RequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_ENDPOINT);
else
RequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_ENDPOINT);
Pipe_SelectPipe(DataPipeIndex);
EndpointAddress = Pipe_GetBoundEndpointAddress();
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = RequestType,
.bRequest = EndpointProperty,
.wValue = ((uint16_t)EndpointControl << 8),
.wIndex = EndpointAddress,
.wLength = DataLength,
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(Data);
}
/** Writes a report to the attached device.
*
* \param[in] ReportOUTData Buffer containing the report to send to the device
* \param[in] ReportLength Length of the report to send
*/
void WriteNextReport(uint8_t* const ReportOUTData,
const uint16_t ReportLength)
{
if (USB_HostState != HOST_STATE_Configured)
return;
/* Select and unfreeze HID data OUT pipe */
Pipe_SelectPipe(HID_DATA_OUT_PIPE);
/* Not all HID devices have an OUT endpoint (some require OUT reports to be sent over the
* control endpoint instead) - check to see if the OUT endpoint has been initialized */
if (Pipe_IsConfigured())
{
Pipe_Unfreeze();
/* Ensure pipe is ready to be written to before continuing */
if (!(Pipe_IsOUTReady()))
{
/* Refreeze the data OUT pipe */
Pipe_Freeze();
return;
}
/* Write out HID report data */
Pipe_Write_Stream_LE(ReportOUTData, ReportLength, NULL);
/* Clear the OUT endpoint, send last data packet */
Pipe_ClearOUT();
/* Refreeze the data OUT pipe */
Pipe_Freeze();
}
else
{
/* Class specific request to send a HID report to the device */
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = HID_REQ_SetReport,
.wValue = 0x02,
.wIndex = 0x01,
.wLength = ReportLength,
};
/* Select the control pipe for the request transfer */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
/* Send the request to the device */
USB_Host_SendControlRequest(ReportOUTData);
}
}
/** Function to read in the HID report descriptor from the attached device, and process it into easy-to-read
* structures via the HID parser routines in the LUFA library.
*
* \return A value from the \ref KeyboardHostWithParser_GetHIDReportDataCodes_t enum
*/
uint8_t GetHIDReportData(void)
{
/* Create a buffer big enough to hold the entire returned HID report */
uint8_t HIDReportData[HIDReportSize];
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE),
.bRequest = REQ_GetDescriptor,
.wValue = (HID_DTYPE_Report << 8),
.wIndex = 0,
.wLength = HIDReportSize,
};
/* Select the control pipe for the request transfer */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
/* Send control request to retrieve the HID report from the attached device */
if (USB_Host_SendControlRequest(HIDReportData) != HOST_SENDCONTROL_Successful)
return ParseControlError;
/* Send the HID report to the parser for processing */
if (USB_ProcessHIDReport(HIDReportData, HIDReportSize, &HIDReportInfo) != HID_PARSE_Successful)
return ParseError;
return ParseSuccessful;
}
/** Callback for the HID Report Parser. This function is called each time the HID report parser is about to store
* an IN, OUT or FEATURE item into the HIDReportInfo structure. To save on RAM, we are able to filter out items
* we aren't interested in (preventing us from being able to extract them later on, but saving on the RAM they would
* have occupied).
*
* \param[in] CurrentItem Pointer to the item the HID report parser is currently working with
*
* \return Boolean true if the item should be stored into the HID report structure, false if it should be discarded
*/
bool CALLBACK_HIDParser_FilterHIDReportItem(HID_ReportItem_t* const CurrentItem)
{
/* Check the attributes of the current item - see if we are interested in it or not;
* only store KEYBOARD usage page items into the Processed HID Report structure to
* save RAM and ignore the rest
*/
return (CurrentItem->Attributes.Usage.Page == USAGE_PAGE_KEYBOARD);
}
void CALLBACK_Bluetooth_SendPacket(BT_StackConfig_t* const StackState,
const uint8_t Type,
const uint16_t Length)
{
/* Determine the type of packet being sent, use appropriate pipe */
switch (Type)
{
case BLUETOOTH_PACKET_HCICommand:
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_DEVICE),
.bRequest = 0,
.wValue = 0,
.wIndex = 0,
.wLength = Length
};
/* HCI commands must be sent over the Control pipe */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
USB_Host_SendControlRequest(StackState->Config.PacketBuffer);
break;
case BLUETOOTH_PACKET_HCIData:
Pipe_SelectPipe(BLUETOOTH_DATA_OUT_PIPE);
/* HCI data packets must be sent over the Data OUT pipe */
Pipe_Unfreeze();
Pipe_Write_Stream_LE(StackState->Config.PacketBuffer, Length, NULL);
Pipe_ClearOUT();
Pipe_Freeze();
break;
}
// RGB_SetColour(RGB_ALIAS_Connected);
}
void EVENT_Bluetooth_InitComplete(BT_StackConfig_t* const StackState)
{
/* Save the local BDADDR of the connected Bluetooth adapter for later use */
// eeprom_update_block(BluetoothAdapter_Stack.State.HCI.LocalBDADDR, BluetoothAdapter_LastLocalBDADDR, sizeof(BDADDR_t));
}
uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
{
if (PRNTInterfaceInfo->State.AlternateSetting)
{
uint8_t ErrorCode;
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE),
.bRequest = REQ_SetInterface,
.wValue = PRNTInterfaceInfo->State.AlternateSetting,
.wIndex = PRNTInterfaceInfo->State.InterfaceNumber,
.wLength = 0,
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
return ErrorCode;
}
return HOST_SENDCONTROL_Successful;
}
/** Function to read in the HID report descriptor from the attached device, and process it into easy-to-read
* structures via the HID parser routines in the LUFA library.
*
* \return A value from the MouseHostWithParser_GetHIDReportDataCodes_t enum
*/
uint8_t GetHIDReportData(void)
{
/* Create a buffer big enough to hold the entire returned HID report */
uint8_t HIDReportData[HIDReportSize];
USB_HostRequest = (USB_Host_Request_Header_t)
{
bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE),
bRequest: REQ_GetDescriptor,
wValue: (DTYPE_Report << 8),
wIndex: 0,
wLength: HIDReportSize,
};
/* Send control request to retrieve the HID report from the attached device */
if (USB_Host_SendControlRequest(HIDReportData) != HOST_SENDCONTROL_Successful)
return ParseControlError;
/* Send the HID report to the parser for processing */
if (ProcessHIDReport(HIDReportData, HIDReportSize, &HIDReportInfo) != HID_PARSE_Successful)
return ParseError;
return ParseSuccessful;
}
uint8_t USB_Host_GetDeviceConfigDescriptor(uint8_t ConfigNumber, uint16_t* const ConfigSizePtr,
void* BufferPtr, uint16_t BufferSize)
{
uint8_t ErrorCode;
uint8_t ConfigHeader[sizeof(USB_Descriptor_Configuration_Header_t)];
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = ((DTYPE_Configuration << 8) | (ConfigNumber - 1)),
.wIndex = 0,
.wLength = sizeof(USB_Descriptor_Configuration_Header_t),
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
if ((ErrorCode = USB_Host_SendControlRequest(ConfigHeader)) != HOST_SENDCONTROL_Successful)
return ErrorCode;
*ConfigSizePtr = DESCRIPTOR_CAST(ConfigHeader, USB_Descriptor_Configuration_Header_t).TotalConfigurationSize;
if (*ConfigSizePtr > BufferSize)
return HOST_GETCONFIG_BuffOverflow;
USB_ControlRequest.wLength = *ConfigSizePtr;
if ((ErrorCode = USB_Host_SendControlRequest(BufferPtr)) != HOST_SENDCONTROL_Successful)
return ErrorCode;
if (DESCRIPTOR_TYPE(BufferPtr) != DTYPE_Configuration)
return HOST_GETCONFIG_InvalidData;
return HOST_GETCONFIG_Successful;
}
#endif
void USB_GetNextDescriptorOfType(uint16_t* const BytesRem,
void** const CurrConfigLoc,
const uint8_t Type)
{
while (*BytesRem)
{
USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
return;
}
}
void USB_GetNextDescriptorOfTypeBefore(uint16_t* const BytesRem,
void** const CurrConfigLoc,
const uint8_t Type,
const uint8_t BeforeType)
{
while (*BytesRem)
{
USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
{
return;
}
else if (DESCRIPTOR_TYPE(*CurrConfigLoc) == BeforeType)
{
*BytesRem = 0;
return;
}
}
}
void USB_GetNextDescriptorOfTypeAfter(uint16_t* const BytesRem,
void** const CurrConfigLoc,
const uint8_t Type,
const uint8_t AfterType)
{
USB_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, AfterType);
if (*BytesRem)
USB_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, Type);
}
/** Task to set the configuration of the attached device after it has been enumerated, and to send some test page
* data to the attached printer.
*/
void USB_Printer_Host(void)
{
uint8_t ErrorCode;
switch (USB_HostState)
{
case HOST_STATE_Addressed:
puts_P(PSTR("Getting Config Data.\r\n"));
/* Select the control pipe for the request transfer */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
/* Get and process the configuration descriptor data */
if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
{
if (ErrorCode == ControlError)
puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
else
puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);
/* Indicate error via status LEDs */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error via status LEDs */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
/* Some printers use alternate settings to determine the communication protocol used - if so, send a SetInterface
* request to switch to the interface alternate setting with the Bidirectional protocol */
if (PrinterAltSetting)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE),
.bRequest = REQ_SetInterface,
.wValue = PrinterAltSetting,
.wIndex = PrinterInterfaceNumber,
.wLength = 0,
};
if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Interface).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error via status LEDs */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
}
puts_P(PSTR("Retrieving Device ID...\r\n"));
char DeviceIDString[300];
if ((ErrorCode = Printer_GetDeviceID(DeviceIDString, sizeof(DeviceIDString))) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Get Device ID).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error via status LEDs */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
printf_P(PSTR("Printer Device ID: %s\r\n"), DeviceIDString);
puts_P(PSTR("Printer Enumerated.\r\n"));
USB_HostState = HOST_STATE_Configured;
break;
case HOST_STATE_Configured:
/* Indicate device busy via the status LEDs */
LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
char TestPageData[] = "\033%-12345X\033E" "LUFA PCL Test Page" "\033E\033%-12345X";
uint16_t TestPageLength = strlen(TestPageData);
printf_P(PSTR("Sending Test Page (%d bytes)...\r\n"), TestPageLength);
if ((ErrorCode = Printer_SendData(&TestPageData, TestPageLength)) != PIPE_RWSTREAM_NoError)
{
printf_P(PSTR(ESC_FG_RED "Error Sending Test Page.\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error via status LEDs */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
puts_P(PSTR("Test Page Sent.\r\n"));
/* Indicate device no longer busy */
LEDs_SetAllLEDs(LEDMASK_USB_READY);
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
}
/** Function to read in the HID report descriptor from the attached device, and process it into easy-to-read
* structures via the HID parser routines in the LUFA library.
*
* \return A value from the \ref MouseHostWithParser_GetHIDReportDataCodes_t enum
*/
uint8_t GetHIDReportData(void)
{
/* Create a buffer big enough to hold the entire returned HID report */
uint8_t HIDReportData[HIDReportSize];
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE),
.bRequest = REQ_GetDescriptor,
.wValue = (HID_DTYPE_Report << 8),
.wIndex = 0,
.wLength = HIDReportSize,
};
/* Select the control pipe for the request transfer */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
/* Send control request to retrieve the HID report from the attached device */
if (USB_Host_SendControlRequest(HIDReportData) != HOST_SENDCONTROL_Successful)
return ParseControlError;
/* Send the HID report to the parser for processing */
if (USB_ProcessHIDReport(HIDReportData, HIDReportSize, &HIDReportInfo) != HID_PARSE_Successful)
return ParseError;
return ParseSuccessful;
}
/** Callback for the HID Report Parser. This function is called each time the HID report parser is about to store
* an IN, OUT or FEATURE item into the HIDReportInfo structure. To save on RAM, we are able to filter out items
* we aren't interested in (preventing us from being able to extract them later on, but saving on the RAM they would
* have occupied).
*
* \param[in] CurrentItem Pointer to the item the HID report parser is currently working with
*
* \return Boolean true if the item should be stored into the HID report structure, false if it should be discarded
*/
bool CALLBACK_HIDParser_FilterHIDReportItem(HID_ReportItem_t* const CurrentItem)
{
bool IsMouse = false;
/* Iterate through the item's collection path, until either the root collection node or a collection with the
* Mouse Usage is found - this prevents Joysticks, which use identical descriptors except for the Joystick usage
* parent node, from being erroneously treated as a mouse
*/
for (HID_CollectionPath_t* CurrPath = CurrentItem->CollectionPath; CurrPath != NULL; CurrPath = CurrPath->Parent)
{
if ((CurrPath->Usage.Page == USAGE_PAGE_GENERIC_DCTRL) &&
(CurrPath->Usage.Usage == USAGE_MOUSE))
{
IsMouse = true;
break;
}
}
/* If a collection with the mouse usage was not found, indicate that we are not interested in this item */
if (!IsMouse)
return false;
/* Check the attributes of the current mouse item - see if we are interested in it or not;
* only store BUTTON and GENERIC_DESKTOP_CONTROL items into the Processed HID Report
* structure to save RAM and ignore the rest
*/
return ((CurrentItem->Attributes.Usage.Page == USAGE_PAGE_BUTTON) ||
(CurrentItem->Attributes.Usage.Page == USAGE_PAGE_GENERIC_DCTRL));
}
/** Issues a Printer class Get Device ID command to the attached device, to retrieve the device ID string (which indicates
* the accepted printer languages, the printer's model and other pertinent information).
*
* \param[out] DeviceIDString Pointer to the destination where the returned string should be stored
* \param[in] BufferSize Size in bytes of the allocated buffer for the returned Device ID string
*
* \return A value from the USB_Host_SendControlErrorCodes_t enum
*/
uint8_t Printer_GetDeviceID(char* DeviceIDString,
const uint16_t BufferSize)
{
uint8_t ErrorCode;
uint16_t DeviceIDStringLength = 0;
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = PRNT_REQ_GetDeviceID,
.wValue = 0,
.wIndex = PrinterInterfaceNumber,
.wLength = sizeof(DeviceIDStringLength),
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
if ((ErrorCode = USB_Host_SendControlRequest(&DeviceIDStringLength)) != HOST_SENDCONTROL_Successful)
return ErrorCode;
if (!(DeviceIDStringLength))
{
DeviceIDString[0] = 0x00;
return HOST_SENDCONTROL_Successful;
}
DeviceIDStringLength = SwapEndian_16(DeviceIDStringLength);
if (DeviceIDStringLength > BufferSize)
DeviceIDStringLength = BufferSize;
USB_ControlRequest.wLength = DeviceIDStringLength;
if ((ErrorCode = USB_Host_SendControlRequest(DeviceIDString)) != HOST_SENDCONTROL_Successful)
return ErrorCode;
/* Move string back two characters to remove the string length value from the start of the array */
memmove(&DeviceIDString[0], &DeviceIDString[2], DeviceIDStringLength - 2);
DeviceIDString[DeviceIDStringLength - 2] = 0x00;
return HOST_SENDCONTROL_Successful;
}
/** Issues a Printer class Get Port Status command to the attached device, to retrieve the current status flags of the
* printer.
*
* \param[out] PortStatus Pointer to the destination where the printer's status flag values should be stored
*
* \return A value from the USB_Host_SendControlErrorCodes_t enum
*/
uint8_t Printer_GetPortStatus(uint8_t* const PortStatus)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = PRNT_REQ_GetPortStatus,
.wValue = 0,
.wIndex = PrinterInterfaceNumber,
.wLength = sizeof(uint8_t),
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(PortStatus);
}
/** Issues a Printer class Soft Reset command to the attached device, to reset the printer ready for new input without
* physically cycling the printer's power.
*
* \return A value from the USB_Host_SendControlErrorCodes_t enum
*/
uint8_t Printer_SoftReset(void)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = PRNT_REQ_SoftReset,
.wValue = 0,
.wIndex = PrinterInterfaceNumber,
.wLength = 0,
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(NULL);
}
/** Writes a report to the attached device.
*
* \param[in] ReportOUTData Buffer containing the report to send to the device
* \param[in] ReportIndex Index of the report in the device (zero if the device does not use multiple reports)
* \param[in] ReportType Type of report to send, either REPORT_TYPE_OUT or REPORT_TYPE_FEATURE
* \param[in] ReportLength Length of the report to send
*/
void WriteNextReport(uint8_t* ReportOUTData,
const uint8_t ReportIndex,
const uint8_t ReportType,
uint16_t ReportLength)
{
/* Select the HID data OUT pipe */
Pipe_SelectPipe(HID_DATA_OUT_PIPE);
/* Not all HID devices have an OUT endpoint (some require OUT reports to be sent over the
* control endpoint instead) - check to see if the OUT endpoint has been initialized */
if (Pipe_IsConfigured() && (ReportType == REPORT_TYPE_OUT))
{
Pipe_Unfreeze();
/* Ensure pipe is ready to be written to before continuing */
if (!(Pipe_IsOUTReady()))
{
/* Refreeze the data OUT pipe */
Pipe_Freeze();
return;
}
/* If the report index is used, send it before the report data */
if (ReportIndex)
Pipe_Write_Byte(ReportIndex);
/* Write out HID report data */
Pipe_Write_Stream_LE(ReportOUTData, ReportLength);
/* Clear the OUT endpoint, send last data packet */
Pipe_ClearOUT();
/* Refreeze the data OUT pipe */
Pipe_Freeze();
}
else
{
/* Class specific request to send a HID report to the device */
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = HID_REQ_SetReport,
.wValue = ((ReportType << 8) | ReportIndex),
.wIndex = 0,
.wLength = ReportLength,
};
/* Select the control pipe for the request transfer */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
/* Send the request to the device */
USB_Host_SendControlRequest(ReportOUTData);
}
}
/** Task to set the configuration of the attached device after it has been enumerated, and to read and process
* HID reports from the device and to send reports if desired.
*/
void HID_Host_Task(void)
{
uint8_t ErrorCode;
/* Switch to determine what user-application handled host state the host state machine is in */
switch (USB_HostState)
{
case HOST_STATE_Addressed:
puts_P(PSTR("Getting Config Data.\r\n"));
/* Get and process the configuration descriptor data */
if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
{
if (ErrorCode == ControlError)
puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
else
puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error status */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error status */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
puts_P(PSTR("HID Device Enumerated.\r\n"));
USB_HostState = HOST_STATE_Configured;
break;
case HOST_STATE_Configured:
ReadNextReport();
break;
}
}
/** Task to set the configuration of the attached device after it has been enumerated, and to read and process
* HID reports from the device and display the results onto the board LEDs.
*/
void Keyboard_HID_Task(void)
{
uint8_t ErrorCode;
switch (USB_HostState)
{
case HOST_STATE_Addressed:
puts_P(PSTR("Getting Config Data.\r\n"));
/* Get and process the configuration descriptor data */
if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
{
if (ErrorCode == ControlError)
puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
else
puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error status */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error status */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
/* HID class request to set the keyboard protocol to the Boot Protocol */
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = REQ_SetProtocol,
.wValue = 0,
.wIndex = 0,
.wLength = 0,
};
/* Select the control pipe for the request transfer */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
/* Send the request, display error and wait for device detach if request fails */
if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Protocol).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error status */
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
puts_P(PSTR("Keyboard Enumerated.\r\n"));
USB_HostState = HOST_STATE_Configured;
break;
case HOST_STATE_Configured:
/* If a report has been received, read and process it */
ReadNextReport();
break;
}
}
uint8_t USB_Host_SetDeviceConfiguration(const uint8_t corenum, const uint8_t ConfigNumber)
{
uint8_t ErrorCode;
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_SetConfiguration,
.wValue = ConfigNumber,
.wIndex = 0,
.wLength = 0,
};
Pipe_SelectPipe(corenum, PIPE_CONTROLPIPE);
if ((ErrorCode = USB_Host_SendControlRequest(corenum, NULL)) == HOST_SENDCONTROL_Successful)
{
USB_Host_ConfigurationNumber = ConfigNumber;
USB_HostState[corenum] = (ConfigNumber) ? HOST_STATE_Configured : HOST_STATE_Addressed;
}
return ErrorCode;
}
uint8_t USB_Host_GetDeviceDescriptor(const uint8_t corenum, void* const DeviceDescriptorPtr)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = (DTYPE_Device << 8),
.wIndex = 0,
.wLength = sizeof(USB_Descriptor_Device_t),
};
Pipe_SelectPipe(corenum, PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(corenum,DeviceDescriptorPtr);
}
uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t corenum,
const uint8_t Index,
void* const Buffer,
const uint8_t BufferLength)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = (DTYPE_String << 8) | Index,
.wIndex = 0,
.wLength = BufferLength,
};
Pipe_SelectPipe(corenum, PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(corenum,Buffer);
}
uint8_t USB_Host_GetDeviceStatus(const uint8_t corenum, uint8_t* const FeatureStatus)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetStatus,
.wValue = 0,
.wIndex = 0,
.wLength = 0,
};
Pipe_SelectPipe(corenum, PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(corenum, FeatureStatus);
}
uint8_t USB_Host_ClearEndpointStall(const uint8_t corenum, const uint8_t EndpointAddress)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_ENDPOINT),
.bRequest = REQ_ClearFeature,
.wValue = FEATURE_SEL_EndpointHalt,
.wIndex = EndpointAddress,
.wLength = 0,
};
Pipe_SelectPipe(corenum, PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(corenum,NULL);
}
uint8_t USB_Host_SetInterfaceAltSetting(const uint8_t corenum,
const uint8_t InterfaceIndex,
const uint8_t AltSetting)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE),
.bRequest = REQ_SetInterface,
.wValue = AltSetting,
.wIndex = InterfaceIndex,
.wLength = 0,
};
Pipe_SelectPipe(corenum, PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(corenum,NULL);
}
/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
* enumerated by the host and is now ready to be used by the application.
*/
void EVENT_USB_Host_DeviceEnumerationComplete(void)
{
puts_P(PSTR("Getting Config Data.\r\n"));
uint8_t ErrorCode;
/* Get and process the configuration descriptor data */
if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
{
if (ErrorCode == ControlError)
puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
else
puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
return;
}
/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
return;
}
/* HID class request to set the mouse protocol to the Boot Protocol */
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = HID_REQ_SetProtocol,
.wValue = 0,
.wIndex = 0,
.wLength = 0,
};
/* Select the control pipe for the request transfer */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
/* Send the request, display error and wait for device detach if request fails */
if ((ErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Protocol).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_Host_SetDeviceConfiguration(0);
return;
}
puts_P(PSTR("Mouse Enumerated.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
{
USB_Disable();
printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
" -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
for(;;);
}
void USB_Host_ProcessNextHostState(void)
{
uint8_t ErrorCode = HOST_ENUMERROR_NoError;
uint8_t SubErrorCode = HOST_ENUMERROR_NoError;
static uint16_t WaitMSRemaining;
static uint8_t PostWaitState;
switch (USB_HostState)
{
case HOST_STATE_WaitForDevice:
if (WaitMSRemaining)
{
if ((SubErrorCode = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
{
USB_HostState = PostWaitState;
ErrorCode = HOST_ENUMERROR_WaitStage;
break;
}
if (!(--WaitMSRemaining))
USB_HostState = PostWaitState;
}
break;
case HOST_STATE_Powered:
WaitMSRemaining = HOST_DEVICE_SETTLE_DELAY_MS;
USB_HostState = HOST_STATE_Powered_WaitForDeviceSettle;
break;
case HOST_STATE_Powered_WaitForDeviceSettle:
if (WaitMSRemaining--)
{
_delay_ms(1);
break;
}
else
{
USB_Host_VBUS_Manual_Off();
USB_OTGPAD_On();
USB_Host_VBUS_Auto_Enable();
USB_Host_VBUS_Auto_On();
USB_HostState = HOST_STATE_Powered_WaitForConnect;
}
break;
case HOST_STATE_Powered_WaitForConnect:
if (USB_INT_HasOccurred(USB_INT_DCONNI))
{
USB_INT_Clear(USB_INT_DCONNI);
USB_INT_Clear(USB_INT_DDISCI);
USB_INT_Clear(USB_INT_VBERRI);
USB_INT_Enable(USB_INT_VBERRI);
USB_Host_ResumeBus();
Pipe_ClearPipes();
HOST_TASK_NONBLOCK_WAIT(100, HOST_STATE_Powered_DoReset);
}
break;
case HOST_STATE_Powered_DoReset:
USB_Host_ResetDevice();
HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Powered_ConfigPipe);
break;
case HOST_STATE_Powered_ConfigPipe:
Pipe_ConfigurePipe(PIPE_CONTROLPIPE, EP_TYPE_CONTROL,
PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,
PIPE_CONTROLPIPE_DEFAULT_SIZE, PIPE_BANK_SINGLE);
if (!(Pipe_IsConfigured()))
{
ErrorCode = HOST_ENUMERROR_PipeConfigError;
SubErrorCode = 0;
break;
}
USB_HostState = HOST_STATE_Default;
break;
case HOST_STATE_Default:
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = (DTYPE_Device << 8),
.wIndex = 0,
.wLength = 8,
};
uint8_t DataBuffer[8];
if ((SubErrorCode = USB_Host_SendControlRequest(DataBuffer)) != HOST_SENDCONTROL_Successful)
{
ErrorCode = HOST_ENUMERROR_ControlError;
break;
}
USB_ControlPipeSize = DataBuffer[offsetof(USB_Descriptor_Device_t, Endpoint0Size)];
USB_Host_ResetDevice();
HOST_TASK_NONBLOCK_WAIT(200, HOST_STATE_Default_PostReset);
break;
case HOST_STATE_Default_PostReset:
Pipe_ConfigurePipe(PIPE_CONTROLPIPE, EP_TYPE_CONTROL,
PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,
USB_ControlPipeSize, PIPE_BANK_SINGLE);
if (!(Pipe_IsConfigured()))
{
ErrorCode = HOST_ENUMERROR_PipeConfigError;
SubErrorCode = 0;
break;
}
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_SetAddress,
.wValue = USB_HOST_DEVICEADDRESS,
.wIndex = 0,
.wLength = 0,
};
if ((SubErrorCode = USB_Host_SendControlRequest(NULL)) != HOST_SENDCONTROL_Successful)
{
ErrorCode = HOST_ENUMERROR_ControlError;
break;
}
HOST_TASK_NONBLOCK_WAIT(100, HOST_STATE_Default_PostAddressSet);
break;
case HOST_STATE_Default_PostAddressSet:
USB_Host_SetDeviceAddress(USB_HOST_DEVICEADDRESS);
EVENT_USB_Host_DeviceEnumerationComplete();
USB_HostState = HOST_STATE_Addressed;
break;
}
if ((ErrorCode != HOST_ENUMERROR_NoError) && (USB_HostState != HOST_STATE_Unattached))
{
EVENT_USB_Host_DeviceEnumerationFailed(ErrorCode, SubErrorCode);
USB_Host_VBUS_Auto_Off();
EVENT_USB_Host_DeviceUnattached();
USB_ResetInterface();
}
}
uint8_t USB_Host_WaitMS(uint8_t MS)
{
bool BusSuspended = USB_Host_IsBusSuspended();
uint8_t ErrorCode = HOST_WAITERROR_Successful;
bool HSOFIEnabled = USB_INT_IsEnabled(USB_INT_HSOFI);
USB_INT_Disable(USB_INT_HSOFI);
USB_INT_Clear(USB_INT_HSOFI);
USB_Host_ResumeBus();
while (MS)
{
if (USB_INT_HasOccurred(USB_INT_HSOFI))
{
USB_INT_Clear(USB_INT_HSOFI);
MS--;
}
if ((USB_HostState == HOST_STATE_Unattached) || (USB_CurrentMode != USB_MODE_Host))
{
ErrorCode = HOST_WAITERROR_DeviceDisconnect;
break;
}
if (Pipe_IsError() == true)
{
Pipe_ClearError();
ErrorCode = HOST_WAITERROR_PipeError;
break;
}
if (Pipe_IsStalled() == true)
{
Pipe_ClearStall();
ErrorCode = HOST_WAITERROR_SetupStalled;
break;
}
}
if (BusSuspended)
USB_Host_SuspendBus();
if (HSOFIEnabled)
USB_INT_Enable(USB_INT_HSOFI);
return ErrorCode;
}
static void USB_Host_ResetDevice(void)
{
bool BusSuspended = USB_Host_IsBusSuspended();
USB_INT_Disable(USB_INT_DDISCI);
USB_Host_ResetBus();
while (!(USB_Host_IsBusResetComplete()));
USB_Host_ResumeBus();
bool HSOFIEnabled = USB_INT_IsEnabled(USB_INT_HSOFI);
USB_INT_Disable(USB_INT_HSOFI);
USB_INT_Clear(USB_INT_HSOFI);
for (uint8_t MSRem = 10; MSRem != 0; MSRem--)
{
/* Workaround for powerless-pull-up devices. After a USB bus reset,
all disconnection interrupts are suppressed while a USB frame is
looked for - if it is found within 10ms, the device is still
present. */
if (USB_INT_HasOccurred(USB_INT_HSOFI))
{
USB_INT_Clear(USB_INT_HSOFI);
USB_INT_Clear(USB_INT_DDISCI);
break;
}
_delay_ms(1);
}
if (HSOFIEnabled)
USB_INT_Enable(USB_INT_HSOFI);
if (BusSuspended)
USB_Host_SuspendBus();
USB_INT_Enable(USB_INT_DDISCI);
}
uint8_t USB_Host_GetDeviceConfigDescriptor(uint16_t* const ConfigSizePtr, void* BufferPtr)
{
uint8_t ErrorCode;
USB_HostRequest = (USB_Host_Request_Header_t)
{
bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
bRequest: REQ_GetDescriptor,
wValue: (DTYPE_Configuration << 8),
wIndex: 0,
wLength: sizeof(USB_Descriptor_Configuration_Header_t),
};
if (BufferPtr == NULL)
{
BufferPtr = alloca(sizeof(USB_Descriptor_Configuration_Header_t));
ErrorCode = USB_Host_SendControlRequest(BufferPtr);
#if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES)
*ConfigSizePtr = DESCRIPTOR_CAST(BufferPtr, USB_Descriptor_Configuration_Header_t).TotalConfigurationSize;
#else
*ConfigSizePtr = DESCRIPTOR_CAST(BufferPtr, USB_Descriptor_Configuration_Header_t).wTotalLength;
#endif
}
else
{
USB_HostRequest.wLength = *ConfigSizePtr;
ErrorCode = USB_Host_SendControlRequest(BufferPtr);
}
return ErrorCode;
}
void USB_Host_GetNextDescriptorOfType(uint16_t* const BytesRem,
uint8_t** const CurrConfigLoc,
const uint8_t Type)
{
while (*BytesRem)
{
USB_Host_GetNextDescriptor(BytesRem, CurrConfigLoc);
if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
return;
}
}
void USB_Host_GetNextDescriptorOfTypeBefore(uint16_t* const BytesRem,
uint8_t** const CurrConfigLoc,
const uint8_t Type,
const uint8_t BeforeType)
{
while (*BytesRem)
{
USB_Host_GetNextDescriptor(BytesRem, CurrConfigLoc);
if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
{
return;
}
else if (DESCRIPTOR_TYPE(*CurrConfigLoc) == BeforeType)
{
*BytesRem = 0;
return;
}
}
}
void USB_Host_GetNextDescriptorOfTypeAfter(uint16_t* const BytesRem,
uint8_t** const CurrConfigLoc,
const uint8_t Type,
const uint8_t AfterType)
{
USB_Host_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, AfterType);
if (*BytesRem)
USB_Host_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, Type);
}
/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
* enumerated by the host and is now ready to be used by the application.
*/
void EVENT_USB_Host_DeviceEnumerationComplete(void)
{
puts_P(PSTR("Getting Config Data.\r\n"));
uint8_t ErrorCode;
/* Get and process the configuration descriptor data */
if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
{
if (ErrorCode == ControlError)
puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
else
puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
return;
}
/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
return;
}
if ((ErrorCode = USB_Host_SetInterfaceAltSetting(StreamingInterfaceIndex,
StreamingInterfaceAltSetting)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Could not set alternative streaming interface setting.\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_Host_SetDeviceConfiguration(0);
return;
}
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_ENDPOINT),
.bRequest = AUDIO_REQ_SetCurrent,
.wValue = (AUDIO_EPCONTROL_SamplingFreq << 8),
.wIndex = StreamingEndpointAddress,
.wLength = sizeof(USB_Audio_SampleFreq_t),
};
USB_Audio_SampleFreq_t SampleRate = AUDIO_SAMPLE_FREQ(48000);
/* Select the control pipe for the request transfer */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
/* Set the sample rate on the streaming interface endpoint */
if ((ErrorCode = USB_Host_SendControlRequest(&SampleRate)) != HOST_SENDCONTROL_Successful)
{
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
USB_Host_SetDeviceConfiguration(0);
return;
}
/* Sample reload timer initialization */
TIMSK0 = (1 << OCIE0A);
OCR0A = ((F_CPU / 8 / 48000) - 1);
TCCR0A = (1 << WGM01); // CTC mode
TCCR0B = (1 << CS01); // Fcpu/8 speed
puts_P(PSTR("Speaker Enumerated.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
{
USB_Disable();
printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
" -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
for(;;);
}
/** Task to set the configuration of the attached device after it has been enumerated. */
void Android_Host_Task(void)
{
uint8_t ErrorCode;
switch (USB_HostState)
{
case HOST_STATE_Addressed:
puts_P(PSTR("Getting Device Data.\r\n"));
/* Get and process the configuration descriptor data */
ErrorCode = ProcessDeviceDescriptor();
/* Save whether the Android device needs to be mode-switched later on */
bool RequiresModeSwitch = (ErrorCode == NonAccessoryModeAndroidDevice);
/* Error out if the device is not an Android device or an error occurred */
if ((ErrorCode != AccessoryModeAndroidDevice) && !(RequiresModeSwitch))
{
if (ErrorCode == DevControlError)
puts_P(PSTR(ESC_FG_RED "Control Error (Get Device).\r\n"));
else
puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error via status LEDs */
LEDs_SetAllLEDs(LEDS_LED1);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
printf_P(PSTR("Android Device Detected - %sAccessory mode.\r\n"), (RequiresModeSwitch ? "Non-" : ""));
/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error via status LEDs */
LEDs_SetAllLEDs(LEDS_LED1);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
/* Check if a valid Android device was attached, but it is not current in Accessory mode */
if (RequiresModeSwitch)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_VENDOR | REQREC_DEVICE),
.bRequest = ANDROID_Req_StartAccessoryMode,
.wValue = 0,
.wIndex = 0,
.wLength = 0,
};
/* Send the control request for the Android device to switch to accessory mode */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
USB_Host_SendControlRequest(NULL);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
puts_P(PSTR("Getting Config Data.\r\n"));
/* Get and process the configuration descriptor data */
if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
{
if (ErrorCode == ControlError)
puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
else
puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
/* Indicate error via status LEDs */
LEDs_SetAllLEDs(LEDS_LED1);
/* Wait until USB device disconnected */
USB_HostState = HOST_STATE_WaitForDeviceRemoval;
break;
}
puts_P(PSTR("Accessory Mode Android Enumerated.\r\n"));
USB_HostState = HOST_STATE_Configured;
break;
case HOST_STATE_Configured:
/* Select the data IN pipe */
Pipe_SelectPipe(ANDROID_DATA_IN_PIPE);
Pipe_Unfreeze();
/* Check to see if a packet has been received */
if (Pipe_IsINReceived())
{
/* Re-freeze IN pipe after the packet has been received */
Pipe_Freeze();
/* Check if data is in the pipe */
if (Pipe_IsReadWriteAllowed())
{
uint8_t NextReceivedByte = Pipe_BytesInPipe();
uint8_t LEDMask = LEDS_NO_LEDS;
if (NextReceivedByte & 0x01)
LEDMask |= LEDS_LED1;
if (NextReceivedByte & 0x02)
LEDMask |= LEDS_LED2;
if (NextReceivedByte & 0x04)
LEDMask |= LEDS_LED3;
if (NextReceivedByte & 0x08)
LEDMask |= LEDS_LED4;
LEDs_SetAllLEDs(LEDMask);
}
else
{
/* Clear the pipe after all data in the packet has been read, ready for the next packet */
Pipe_ClearIN();
}
}
/* Re-freeze IN pipe after use */
Pipe_Freeze();
break;
}
}
/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
* enumerated by the host and is now ready to be used by the application.
*/
void EVENT_USB_Host_DeviceEnumerationComplete(void)
{
puts_P(PSTR("Getting Config Data.\r\n"));
uint8_t ErrorCode;
/* Get and process the configuration descriptor data */
if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
{
if (ErrorCode == ControlError)
puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
else
puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
return;
}
/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
return;
}
CDC_LineEncoding_t LineEncoding = { .BaudRateBPS = 9600,
.CharFormat = CDC_LINEENCODING_OneStopBit,
.ParityType = CDC_PARITY_None,
.DataBits = 8 };
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE),
.bRequest = CDC_REQ_SetLineEncoding,
.wValue = 0,
.wIndex = 0,
.wLength = sizeof(LineEncoding),
};
/* Set the Line Encoding of the CDC interface within the device, so that it is ready to accept data */
Pipe_SelectPipe(PIPE_CONTROLPIPE);
if (USB_Host_SendControlRequest(&LineEncoding) != HOST_SENDCONTROL_Successful)
{
printf_P(PSTR(ESC_FG_RED "Control Error (Set Line Encoding).\r\n"
" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
return;
}
puts_P(PSTR("CDC Device Enumerated.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
{
USB_Disable();
printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
" -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
for(;;);
}
/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
* enumerating an attached USB device.
*/
void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
const uint8_t SubErrorCode)
{
printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
" -- Error Code %d\r\n"
" -- Sub Error Code %d\r\n"
" -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
}
/** Bluetooth HCI processing task. This task should be called repeatedly the main Bluetooth
* stack task to manage the HCI processing state.
*/
void Bluetooth_HCITask(void)
{
BT_HCICommand_Header_t HCICommandHeader;
switch (Bluetooth_State.CurrentHCIState)
{
case Bluetooth_ProcessEvents:
Pipe_SelectPipe(BLUETOOTH_EVENTS_PIPE);
Pipe_Unfreeze();
if (Pipe_IsReadWriteAllowed())
{
BT_HCIEvent_Header_t HCIEventHeader;
/* Read in the event header to fetch the event code and payload length */
Pipe_Read_Stream_LE(&HCIEventHeader, sizeof(HCIEventHeader));
/* Create a temporary buffer for the event parameters */
uint8_t EventParams[HCIEventHeader.ParameterLength];
/* Read in the event parameters into the temporary buffer */
Pipe_Read_Stream_LE(&EventParams, HCIEventHeader.ParameterLength);
Pipe_ClearIN();
BT_HCI_DEBUG(1, "Event Received (0x%02X)", HCIEventHeader.EventCode);
switch (HCIEventHeader.EventCode)
{
case EVENT_COMMAND_COMPLETE:
BT_HCI_DEBUG(1, "<< Command Complete");
/* Check which operation was completed in case we need to process the even parameters */
switch (((BT_HCIEvent_CommandComplete_t*)&EventParams)->Opcode)
{
case (OGF_CTRLR_INFORMATIONAL | OCF_CTRLR_INFORMATIONAL_READBDADDR):
/* A READ BDADDR command completed, copy over the local device's BDADDR from the response */
memcpy(Bluetooth_State.LocalBDADDR,
&((BT_HCIEvent_CommandComplete_t*)&EventParams)->ReturnParams[1],
sizeof(Bluetooth_State.LocalBDADDR));
break;
}
Bluetooth_State.CurrentHCIState = Bluetooth_State.NextHCIState;
break;
case EVENT_COMMAND_STATUS:
BT_HCI_DEBUG(1, "<< Command Status");
BT_HCI_DEBUG(2, "-- Status Code: 0x%02X", (((BT_HCIEvent_CommandStatus_t*)&EventParams)->Status));
/* If the execution of a command failed, reset the stack */
if (((BT_HCIEvent_CommandStatus_t*)&EventParams)->Status)
Bluetooth_State.CurrentHCIState = Bluetooth_Init;
break;
case EVENT_CONNECTION_REQUEST:
BT_HCI_DEBUG(1, "<< Connection Request");
BT_HCI_DEBUG(2, "-- Link Type: 0x%02X", (((BT_HCIEvent_ConnectionRequest_t*)&EventParams)->LinkType));
/* Need to store the remote device's BT address in a temporary buffer for later use */
memcpy(Bluetooth_TempDeviceAddress,
&((BT_HCIEvent_ConnectionRequest_t*)&EventParams)->RemoteAddress,
sizeof(Bluetooth_TempDeviceAddress));
bool IsACLConnection = (((BT_HCIEvent_ConnectionRequest_t*)&EventParams)->LinkType == 0x01);
/* Only accept the connection if it is a ACL (data) connection, a device is not already connected
and the user application has indicated that the connection should be allowed */
Bluetooth_State.CurrentHCIState = (Bluetooth_Connection.IsConnected || !(IsACLConnection) ||
!(Bluetooth_ConnectionRequest(Bluetooth_TempDeviceAddress))) ?
Bluetooth_Conn_RejectConnection : Bluetooth_Conn_AcceptConnection;
BT_HCI_DEBUG(2, "-- Connection %S", (Bluetooth_State.CurrentHCIState == Bluetooth_Conn_RejectConnection) ?
PSTR("REJECTED") : PSTR("ACCEPTED"));
break;
case EVENT_PIN_CODE_REQUEST:
BT_HCI_DEBUG(1, "<< Pin Code Request");
/* Need to store the remote device's BT address in a temporary buffer for later use */
memcpy(Bluetooth_TempDeviceAddress,
&((BT_HCIEvent_PinCodeReq_t*)&EventParams)->RemoteAddress,
sizeof(Bluetooth_TempDeviceAddress));
Bluetooth_State.CurrentHCIState = Bluetooth_Conn_SendPINCode;
break;
case EVENT_LINK_KEY_REQUEST:
BT_HCI_DEBUG(1, "<< Link Key Request");
/* Need to store the remote device's BT address in a temporary buffer for later use */
memcpy(Bluetooth_TempDeviceAddress,
&((BT_HCIEvent_LinkKeyReq_t*)&EventParams)->RemoteAddress,
sizeof(Bluetooth_TempDeviceAddress));
Bluetooth_State.CurrentHCIState = Bluetooth_Conn_SendLinkKeyNAK;
break;
case EVENT_CONNECTION_COMPLETE:
BT_HCI_DEBUG(1, "<< Connection Complete");
BT_HCI_DEBUG(2, "-- Handle: 0x%04X", ((BT_HCIEvent_ConnectionComplete_t*)&EventParams)->ConnectionHandle);
/* Need to store the remote device's BT address in a temporary buffer for later use */
memcpy(Bluetooth_Connection.RemoteAddress,
&((BT_HCIEvent_ConnectionComplete_t*)&EventParams)->RemoteAddress,
sizeof(Bluetooth_TempDeviceAddress));
/* Store the created connection handle and indicate that the connection has been established */
Bluetooth_Connection.ConnectionHandle = ((BT_HCIEvent_ConnectionComplete_t*)&EventParams)->ConnectionHandle;
Bluetooth_Connection.IsConnected = true;
Bluetooth_ConnectionComplete();
break;
case EVENT_DISCONNECTION_COMPLETE:
BT_HCI_DEBUG(1, "<< Disconnection Complete");
/* Device disconnected, indicate connection information no longer valid */
Bluetooth_Connection.IsConnected = false;
Bluetooth_DisconnectionComplete();
break;
}
}
Pipe_Freeze();
break;
case Bluetooth_Init:
BT_HCI_DEBUG(1, "# Init");
Bluetooth_State.IsInitialized = false;
/* Reset the connection information structure to destroy any previous connection state */
memset(&Bluetooth_Connection, 0x00, sizeof(Bluetooth_Connection));
Bluetooth_State.CurrentHCIState = Bluetooth_Init_Reset;
break;
case Bluetooth_Init_Reset:
BT_HCI_DEBUG(1, "# Reset");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_RESET),
ParameterLength: 0,
};
/* Send the command to reset the Bluetooth dongle controller */
Bluetooth_SendHCICommand(&HCICommandHeader, NULL, 0);
Bluetooth_State.NextHCIState = Bluetooth_Init_ReadBufferSize;
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Init_ReadBufferSize:
BT_HCI_DEBUG(1, "# Read Buffer Size");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: (OGF_CTRLR_INFORMATIONAL | OCF_CTRLR_INFORMATIONAL_READBUFFERSIZE),
ParameterLength: 0,
};
/* Send the command to read the Bluetooth buffer size (mandatory before device sends any data) */
Bluetooth_SendHCICommand(&HCICommandHeader, NULL, 0);
Bluetooth_State.NextHCIState = Bluetooth_Init_GetBDADDR;
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Init_GetBDADDR:
BT_HCI_DEBUG(1, "# Get BDADDR");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: (OGF_CTRLR_INFORMATIONAL | OCF_CTRLR_INFORMATIONAL_READBDADDR),
ParameterLength: 0,
};
/* Send the command to retrieve the BDADDR of the inserted Bluetooth dongle */
Bluetooth_SendHCICommand(&HCICommandHeader, NULL, 0);
Bluetooth_State.NextHCIState = Bluetooth_Init_SetLocalName;
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Init_SetLocalName:
BT_HCI_DEBUG(1, "# Set Local Name");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_WRITE_LOCAL_NAME),
ParameterLength: 248,
};
/* Send the command to set the Bluetooth dongle's name for other devices to see */
Bluetooth_SendHCICommand(&HCICommandHeader, Bluetooth_DeviceConfiguration.Name, strlen(Bluetooth_DeviceConfiguration.Name));
Bluetooth_State.NextHCIState = Bluetooth_Init_SetDeviceClass;
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Init_SetDeviceClass:
BT_HCI_DEBUG(1, "# Set Device Class");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_WRITE_CLASS_OF_DEVICE),
ParameterLength: 3,
};
/* Send the command to set the class of the device for other devices to see */
Bluetooth_SendHCICommand(&HCICommandHeader, &Bluetooth_DeviceConfiguration.Class, 3);
Bluetooth_State.NextHCIState = Bluetooth_Init_WriteScanEnable;
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Init_WriteScanEnable:
BT_HCI_DEBUG(1, "# Write Scan Enable");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: (OGF_CTRLR_BASEBAND | OCF_CTRLR_BASEBAND_WRITE_SCAN_ENABLE),
ParameterLength: 1,
};
uint8_t Interval = BT_SCANMODE_InquiryAndPageScans;
/* Send the command to set the remote device scanning mode */
Bluetooth_SendHCICommand(&HCICommandHeader, &Interval, 1);
Bluetooth_State.NextHCIState = Bluetooth_Init_FinalizeInit;
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Init_FinalizeInit:
Bluetooth_State.IsInitialized = true;
/* Fire the user application callback to indicate that the stack is now fully initialized */
Bluetooth_StackInitialized();
Bluetooth_State.NextHCIState = Bluetooth_ProcessEvents;
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Conn_AcceptConnection:
BT_HCI_DEBUG(1, "# Accept Connection");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_ACCEPT_CONNECTION_REQUEST),
ParameterLength: sizeof(BT_HCICommand_AcceptConnectionReq_t),
};
/* Copy over the temporary BT device address saved from the Connection Request event, indicate slave
connection role */
BT_HCICommand_AcceptConnectionReq_t AcceptConnectionParams;
memcpy(AcceptConnectionParams.RemoteAddress, Bluetooth_TempDeviceAddress,
sizeof(AcceptConnectionParams.RemoteAddress));
AcceptConnectionParams.SlaveRole = true;
/* Send the command to accept the remote connection request */
Bluetooth_SendHCICommand(&HCICommandHeader, &AcceptConnectionParams, sizeof(BT_HCICommand_AcceptConnectionReq_t));
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Conn_RejectConnection:
BT_HCI_DEBUG(1, "# Reject Connection");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_REJECT_CONNECTION_REQUEST),
ParameterLength: sizeof(BT_HCICommand_RejectConnectionReq_t),
};
/* Copy over the temporary BT device address saved from the Connection Request event, indicate failure
to accept the connection due to limited device resources or incorrect device address */
BT_HCICommand_RejectConnectionReq_t RejectConnectionParams;
memcpy(RejectConnectionParams.RemoteAddress, Bluetooth_TempDeviceAddress, sizeof(RejectConnectionParams.RemoteAddress));
RejectConnectionParams.Reason = Bluetooth_Connection.IsConnected ? ERROR_LIMITED_RESOURCES : ERROR_UNACCEPTABLE_BDADDR;
/* Send the command to reject the remote connection request */
Bluetooth_SendHCICommand(&HCICommandHeader, &RejectConnectionParams, sizeof(BT_HCICommand_RejectConnectionReq_t));
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Conn_SendPINCode:
BT_HCI_DEBUG(1, "# Send Pin Code");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_PIN_CODE_REQUEST_REPLY),
ParameterLength: sizeof(BT_HCICommand_PinCodeResp_t),
};
/* Copy over the temporary BT device address saved from the PIN Code Request event, copy over the
local PIN authentication code to the response */
BT_HCICommand_PinCodeResp_t PINCodeRequestParams;
memcpy(PINCodeRequestParams.RemoteAddress, Bluetooth_TempDeviceAddress, sizeof(PINCodeRequestParams.RemoteAddress));
PINCodeRequestParams.PINCodeLength = strlen(Bluetooth_DeviceConfiguration.PINCode);
memcpy(PINCodeRequestParams.PINCode, Bluetooth_DeviceConfiguration.PINCode, sizeof(PINCodeRequestParams.PINCode));
/* Send the command to transmit the device's local PIN number for authentication */
Bluetooth_SendHCICommand(&HCICommandHeader, &PINCodeRequestParams, sizeof(BT_HCICommand_PinCodeResp_t));
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
case Bluetooth_Conn_SendLinkKeyNAK:
BT_HCI_DEBUG(1, "# Send Link Key NAK");
HCICommandHeader = (BT_HCICommand_Header_t)
{
OpCode: (OGF_LINK_CONTROL | OCF_LINK_CONTROL_LINK_KEY_REQUEST_NEG_REPLY),
ParameterLength: sizeof(BT_HCICommand_LinkKeyNAKResp_t),
};
/* Copy over the temporary BT device address saved from the Link Key Request event */
BT_HCICommand_LinkKeyNAKResp_t LinkKeyNAKParams;
memcpy(LinkKeyNAKParams.RemoteAddress, Bluetooth_TempDeviceAddress, sizeof(LinkKeyNAKParams.RemoteAddress));
/* Send the command to transmit the link key NAK to the receiver */
Bluetooth_SendHCICommand(&HCICommandHeader, &LinkKeyNAKParams, sizeof(BT_HCICommand_LinkKeyNAKResp_t));
Bluetooth_State.CurrentHCIState = Bluetooth_ProcessEvents;
break;
}
}
/** Sends a Bluetooth HCI control command to the attached Bluetooth device.
*
* \param[in] HCICommandHeader HCI command header to send to the attached device
* \param[in] Parameters Pointer to the source of the control parameters (if any)
* \param[in] ParameterLength Length of the parameters to send in bytes
*
* \return A value from the USB_Host_SendControlErrorCodes_t enum.
*/
static uint8_t Bluetooth_SendHCICommand(const BT_HCICommand_Header_t* const HCICommandHeader,
const void* Parameters,
const uint16_t ParameterLength)
{
/* Need to reserve the amount of bytes given in the header for the complete payload */
uint8_t CommandBuffer[sizeof(BT_HCICommand_Header_t) + HCICommandHeader->ParameterLength];
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_DEVICE),
.bRequest = 0,
.wValue = 0,
.wIndex = 0,
.wLength = sizeof(CommandBuffer)
};
/* Copy over the HCI command header to the allocated buffer */
memcpy(CommandBuffer, HCICommandHeader, sizeof(BT_HCICommand_Header_t));
/* Zero out the parameter section of the response so that all padding bytes are known to be zero */
memset(&CommandBuffer[sizeof(BT_HCICommand_Header_t)], 0x00, HCICommandHeader->ParameterLength);
/* Copy over the command parameters (if any) to the command buffer - note, the number of actual source parameter bytes
may differ to those in the header; any difference in length is filled with 0x00 padding bytes */
memcpy(&CommandBuffer[sizeof(BT_HCICommand_Header_t)], Parameters, ParameterLength);
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(CommandBuffer);
}
uint8_t AOA_Host_StartAccessoryMode(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
{
uint8_t ErrorCode;
uint16_t AccessoryProtocol;
if ((ErrorCode = AOA_Host_GetAccessoryProtocol(&AccessoryProtocol)) != HOST_WAITERROR_Successful)
return ErrorCode;
if (AccessoryProtocol != CPU_TO_LE16(AOA_PROTOCOL_AccessoryV1))
return AOA_ERROR_LOGICAL_CMD_FAILED;
for (uint8_t PropertyIndex = 0; PropertyIndex < AOA_STRING_TOTAL_STRINGS; PropertyIndex++)
{
if ((ErrorCode = AOA_Host_SendPropertyString(AOAInterfaceInfo, PropertyIndex)) != HOST_WAITERROR_Successful)
return ErrorCode;
}
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_VENDOR | REQREC_DEVICE),
.bRequest = AOA_REQ_StartAccessoryMode,
.wValue = 0,
.wIndex = 0,
.wLength = 0,
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(NULL);
}
static uint8_t AOA_Host_GetAccessoryProtocol(uint16_t* const Protocol)
{
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_VENDOR | REQREC_DEVICE),
.bRequest = AOA_REQ_GetAccessoryProtocol,
.wValue = 0,
.wIndex = 0,
.wLength = sizeof(uint16_t),
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(Protocol);
}
static uint8_t AOA_Host_SendPropertyString(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
const uint8_t StringIndex)
{
const char* String = ((char**)&AOAInterfaceInfo->Config.PropertyStrings)[StringIndex];
if (String == NULL)
String = "";
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_VENDOR | REQREC_DEVICE),
.bRequest = AOA_REQ_SendString,
.wValue = 0,
.wIndex = StringIndex,
.wLength = (strlen(String) + 1),
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest((char*)String);
}
uint8_t AOA_Host_SendData(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
const uint8_t* const Buffer,
const uint16_t Length)
{
if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
return PIPE_READYWAIT_DeviceDisconnected;
uint8_t ErrorCode;
Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipeNumber);
Pipe_Unfreeze();
ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL);
Pipe_Freeze();
return ErrorCode;
}
uint8_t AOA_Host_SendString(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
const char* const String)
{
if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
return PIPE_READYWAIT_DeviceDisconnected;
uint8_t ErrorCode;
Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipeNumber);
Pipe_Unfreeze();
ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL);
Pipe_Freeze();
return ErrorCode;
}
uint8_t AOA_Host_SendByte(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
const uint8_t Data)
{
if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
return PIPE_READYWAIT_DeviceDisconnected;
uint8_t ErrorCode;
Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipeNumber);
Pipe_Unfreeze();
if (!(Pipe_IsReadWriteAllowed()))
{
Pipe_ClearOUT();
if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
return ErrorCode;
}
Pipe_Write_8(Data);
Pipe_Freeze();
return PIPE_READYWAIT_NoError;
}
uint16_t AOA_Host_BytesReceived(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
{
if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
return 0;
Pipe_SelectPipe(AOAInterfaceInfo->Config.DataINPipeNumber);
Pipe_Unfreeze();
if (Pipe_IsINReceived())
{
if (!(Pipe_BytesInPipe()))
{
Pipe_ClearIN();
Pipe_Freeze();
return 0;
}
else
{
Pipe_Freeze();
return Pipe_BytesInPipe();
}
}
else
{
Pipe_Freeze();
return 0;
}
}
int16_t AOA_Host_ReceiveByte(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
{
if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
return -1;
int16_t ReceivedByte = -1;
Pipe_SelectPipe(AOAInterfaceInfo->Config.DataINPipeNumber);
Pipe_Unfreeze();
if (Pipe_IsINReceived())
{
if (Pipe_BytesInPipe())
ReceivedByte = Pipe_Read_8();
if (!(Pipe_BytesInPipe()))
Pipe_ClearIN();
}
Pipe_Freeze();
return ReceivedByte;
}
uint8_t AOA_Host_Flush(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
{
if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
return PIPE_READYWAIT_DeviceDisconnected;
uint8_t ErrorCode;
Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipeNumber);
Pipe_Unfreeze();
if (!(Pipe_BytesInPipe()))
return PIPE_READYWAIT_NoError;
bool BankFull = !(Pipe_IsReadWriteAllowed());
Pipe_ClearOUT();
if (BankFull)
{
if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
return ErrorCode;
Pipe_ClearOUT();
}
Pipe_Freeze();
return PIPE_READYWAIT_NoError;
}
#if defined(FDEV_SETUP_STREAM)
void AOA_Host_CreateStream(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
FILE* const Stream)
{
*Stream = (FILE)FDEV_SETUP_STREAM(AOA_Host_putchar, AOA_Host_getchar, _FDEV_SETUP_RW);
fdev_set_udata(Stream, AOAInterfaceInfo);
}
void AOA_Host_CreateBlockingStream(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
FILE* const Stream)
{
*Stream = (FILE)FDEV_SETUP_STREAM(AOA_Host_putchar, AOA_Host_getchar_Blocking, _FDEV_SETUP_RW);
fdev_set_udata(Stream, AOAInterfaceInfo);
}
void USB_Host_ProcessNextHostState(uint8_t corenum)
{
uint8_t ErrorCode = HOST_ENUMERROR_NoError;
uint8_t SubErrorCode = HOST_ENUMERROR_NoError;
static uint16_t WaitMSRemaining;
static uint8_t PostWaitState;
switch (USB_HostState[corenum])
{
case HOST_STATE_WaitForDevice:
if (WaitMSRemaining)
{
if ((SubErrorCode = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
{
USB_HostState[corenum] = PostWaitState;
ErrorCode = HOST_ENUMERROR_WaitStage;
break;
}
if (!(--WaitMSRemaining))
USB_HostState[corenum] = PostWaitState;
}
break;
case HOST_STATE_Powered:
WaitMSRemaining = HOST_DEVICE_SETTLE_DELAY_MS;
USB_HostState[corenum] = HOST_STATE_Powered_WaitForDeviceSettle;
break;
case HOST_STATE_Powered_WaitForDeviceSettle:
if (WaitMSRemaining--)
{
Delay_MS(1);
break;
}
else
{
USB_Host_VBUS_Manual_Off();
USB_OTGPAD_On();
USB_Host_VBUS_Auto_Enable();
USB_Host_VBUS_Auto_On();
USB_HostState[corenum] = HOST_STATE_Powered_WaitForConnect;
}
break;
case HOST_STATE_Powered_WaitForConnect:
HOST_TASK_NONBLOCK_WAIT(corenum, 100, HOST_STATE_Powered_DoReset);
break;
case HOST_STATE_Powered_DoReset:
{
HCD_USB_SPEED DeviceSpeed;
HcdRhPortReset(corenum,1);
HcdGetDeviceSpeed(corenum, 1, &DeviceSpeed); // skip checking status
USB_Host_SetDeviceSpeed(corenum,DeviceSpeed);
HOST_TASK_NONBLOCK_WAIT(corenum, 200, HOST_STATE_Powered_ConfigPipe);
}
break;
case HOST_STATE_Powered_ConfigPipe:
if (!Pipe_ConfigurePipe(corenum, PIPE_CONTROLPIPE, EP_TYPE_CONTROL,
PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,
PIPE_CONTROLPIPE_DEFAULT_SIZE, PIPE_BANK_SINGLE) )
{
ErrorCode = HOST_ENUMERROR_PipeConfigError;
SubErrorCode = 0;
break;
}
USB_HostState[corenum] = HOST_STATE_Default;
break;
case HOST_STATE_Default:
{
USB_Descriptor_Device_t DevDescriptor;
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
.wValue = (DTYPE_Device << 8),
.wIndex = 0,
.wLength = 8,
};
if ((SubErrorCode = USB_Host_SendControlRequest(corenum, &DevDescriptor)) != HOST_SENDCONTROL_Successful)
{
ErrorCode = HOST_ENUMERROR_ControlError;
break;
}
USB_Host_ControlPipeSize[corenum] = DevDescriptor.Endpoint0Size;
Pipe_ClosePipe(corenum, PIPE_CONTROLPIPE);
HcdRhPortReset(corenum,1);
HOST_TASK_NONBLOCK_WAIT(corenum, 200, HOST_STATE_Default_PostReset);
}
break;
case HOST_STATE_Default_PostReset:
if (!Pipe_ConfigurePipe(corenum, PIPE_CONTROLPIPE, EP_TYPE_CONTROL,
PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,
USB_Host_ControlPipeSize[corenum], PIPE_BANK_SINGLE) )
{
ErrorCode = HOST_ENUMERROR_PipeConfigError;
SubErrorCode = 0;
break;
}
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_SetAddress,
.wValue = USB_HOST_DEVICEADDRESS,
.wIndex = 0,
.wLength = 0,
};
if ((SubErrorCode = USB_Host_SendControlRequest(corenum, NULL)) != HOST_SENDCONTROL_Successful)
{
ErrorCode = HOST_ENUMERROR_ControlError;
break;
}
Pipe_ClosePipe(corenum, PIPE_CONTROLPIPE);
HOST_TASK_NONBLOCK_WAIT(corenum, 100, HOST_STATE_Default_PostAddressSet);
break;
case HOST_STATE_Default_PostAddressSet:
Pipe_ConfigurePipe(corenum, PIPE_CONTROLPIPE, EP_TYPE_CONTROL,
PIPE_TOKEN_SETUP, ENDPOINT_CONTROLEP,
USB_Host_ControlPipeSize[corenum], PIPE_BANK_SINGLE);
USB_Host_SetDeviceAddress(USB_HOST_DEVICEADDRESS);
USB_HostState[corenum] = HOST_STATE_Addressed;
EVENT_USB_Host_DeviceEnumerationComplete(corenum);
break;
}
if ((ErrorCode != HOST_ENUMERROR_NoError) && (USB_HostState[corenum] != HOST_STATE_Unattached))
{
EVENT_USB_Host_DeviceEnumerationFailed(corenum, ErrorCode, SubErrorCode);
USB_Host_VBUS_Auto_Off();
EVENT_USB_Host_DeviceUnattached(corenum);
USB_ResetInterface(corenum);
}
}
uint8_t USB_Host_WaitMS(uint8_t MS)
{
return HOST_WAITERROR_Successful;
}
void USB_Host_Enumerate (uint8_t HostId) /* Part of Interrupt Service Routine */
{
// CurrentHostID = HostId;
// hostselected = HostId;
EVENT_USB_Host_DeviceAttached(HostId);
USB_HostState[HostId] = HOST_STATE_Powered;
}
void USB_Host_DeEnumerate(uint8_t HostId) /* Part of Interrupt Service Routine */
{
uint8_t i;
Pipe_ClosePipe(HostId, PIPE_CONTROLPIPE); // FIXME close only relevant pipes , take long time in ISR
for(i = PIPE_CONTROLPIPE+1; i < PIPE_TOTAL_PIPES; i++)
{
if(PipeInfo[HostId][i].PipeHandle != 0)
{
Pipe_ClosePipe(HostId, i);
}
}
EVENT_USB_Host_DeviceUnattached(HostId);
USB_HostState[HostId] = HOST_STATE_Unattached;
}
