uint8_t Audio_Host_StartStopStreaming(USB_ClassInfo_Audio_Host_t* const AudioInterfaceInfo, const bool EnableStreaming) { if (!(AudioInterfaceInfo->State.IsActive)) return HOST_SENDCONTROL_DeviceDisconnected; return USB_Host_SetInterfaceAltSetting(AudioInterfaceInfo->State.StreamingInterfaceNumber, EnableStreaming ? AudioInterfaceInfo->State.EnabledStreamingAltIndex : 0); }
uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) { if (PRNTInterfaceInfo->State.AlternateSetting) { uint8_t ErrorCode; if ((ErrorCode = USB_Host_SetInterfaceAltSetting(PRNTInterfaceInfo->State.InterfaceNumber, PRNTInterfaceInfo->State.AlternateSetting)) != HOST_SENDCONTROL_Successful) { return ErrorCode; } } return HOST_SENDCONTROL_Successful; }
/** 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(;;); }
/** 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"), 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; } /* 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) { if ((ErrorCode = USB_Host_SetInterfaceAltSetting(PrinterInterfaceNumber, PrinterAltSetting)) != HOST_SENDCONTROL_Successful) { printf_P(PSTR(ESC_FG_RED "Control Error (Set Interface).\r\n" " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode); LEDs_SetAllLEDs(LEDMASK_USB_ERROR); USB_Host_SetDeviceConfiguration(0); return; } } 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); LEDs_SetAllLEDs(LEDMASK_USB_ERROR); USB_Host_SetDeviceConfiguration(0); return; } printf_P(PSTR("Printer Device ID: %s\r\n"), DeviceIDString); puts_P(PSTR("Printer Enumerated.\r\n")); LEDs_SetAllLEDs(LEDMASK_USB_READY); }
/** 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) { if ((ErrorCode = USB_Host_SetInterfaceAltSetting(PrinterInterfaceNumber, PrinterAltSetting)) != 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; } }