X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/071e02c6b6b4837fa9cf0b6d4c749994e02638d7..d4b45e8502a27c0f5ad3e26eabd2b30e84c20bac:/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c?ds=sidebyside diff --git a/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c b/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c index e6403ecdf..631925e45 100644 --- a/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c +++ b/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c @@ -1,21 +1,21 @@ /* LUFA Library - Copyright (C) Dean Camera, 2010. - + Copyright (C) Dean Camera, 2012. + dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com + www.lufa-lib.org */ /* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com) - Permission to use, copy, modify, distribute, and sell this + Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in + without fee, provided that the above copyright notice appear in all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the software without specific, written prior permission. The author disclaim all warranties with regard to this @@ -33,7 +33,7 @@ * Main source file for the VirtualSerialHost demo. This file contains the main tasks of * the demo and is responsible for the initial application hardware configuration. */ - + #include "VirtualSerialHost.h" /** LUFA CDC Class driver interface configuration and state information. This structure is @@ -54,7 +54,8 @@ USB_ClassInfo_CDC_Host_t VirtualSerial_CDC_Interface = .NotificationPipeDoubleBank = false, }, }; - + + /** Main program entry point. This routine configures the hardware required by the application, then * enters a loop to run the application tasks in sequence. */ @@ -69,57 +70,8 @@ int main(void) for (;;) { - switch (USB_HostState) - { - case HOST_STATE_Addressed: - LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); - - uint16_t ConfigDescriptorSize; - uint8_t ConfigDescriptorData[512]; - - if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData, - sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful) - { - puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n")); - LEDs_SetAllLEDs(LEDMASK_USB_ERROR); - USB_HostState = HOST_STATE_WaitForDeviceRemoval; - break; - } - - if (CDC_Host_ConfigurePipes(&VirtualSerial_CDC_Interface, - ConfigDescriptorSize, ConfigDescriptorData) != CDC_ENUMERROR_NoError) - { - puts_P(PSTR("Attached Device Not a Valid CDC Class Device.\r\n")); - LEDs_SetAllLEDs(LEDMASK_USB_ERROR); - USB_HostState = HOST_STATE_WaitForDeviceRemoval; - break; - } - - if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful) - { - puts_P(PSTR("Error Setting Device Configuration.\r\n")); - LEDs_SetAllLEDs(LEDMASK_USB_ERROR); - USB_HostState = HOST_STATE_WaitForDeviceRemoval; - break; - } - - puts_P(PSTR("CDC Device Enumerated.\r\n")); - LEDs_SetAllLEDs(LEDMASK_USB_READY); - USB_HostState = HOST_STATE_Configured; - break; - case HOST_STATE_Configured: - if (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface)) - { - /* Echo received bytes from the attached device through the USART */ - while (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface)) - putchar(CDC_Host_ReceiveByte(&VirtualSerial_CDC_Interface)); - - CDC_Host_Flush(&VirtualSerial_CDC_Interface); - } - - break; - } - + CDCHost_Task(); + CDC_Host_USBTask(&VirtualSerial_CDC_Interface); USB_USBTask(); } @@ -136,9 +88,29 @@ void SetupHardware(void) clock_prescale_set(clock_div_1); /* Hardware Initialization */ - SerialStream_Init(9600, false); + Serial_Init(9600, false); LEDs_Init(); USB_Init(); + + /* Create a stdio stream for the serial port for stdin and stdout */ + Serial_CreateStream(NULL); +} + +/** Task to manage an enumerated USB CDC device once connected, to print received data + * from the device to the serial port. + */ +void CDCHost_Task(void) +{ + if (USB_HostState != HOST_STATE_Configured) + return; + + if (CDC_Host_BytesReceived(&VirtualSerial_CDC_Interface)) + { + /* Echo received bytes from the attached device through the USART */ + int16_t ReceivedByte = CDC_Host_ReceiveByte(&VirtualSerial_CDC_Interface); + if (!(ReceivedByte < 0)) + putchar(ReceivedByte); + } } /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and @@ -164,13 +136,54 @@ void EVENT_USB_Host_DeviceUnattached(void) */ void EVENT_USB_Host_DeviceEnumerationComplete(void) { + LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); + + uint16_t ConfigDescriptorSize; + uint8_t ConfigDescriptorData[512]; + + if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData, + sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful) + { + puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n")); + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + return; + } + + if (CDC_Host_ConfigurePipes(&VirtualSerial_CDC_Interface, + ConfigDescriptorSize, ConfigDescriptorData) != CDC_ENUMERROR_NoError) + { + puts_P(PSTR("Attached Device Not a Valid CDC Class Device.\r\n")); + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + return; + } + + if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful) + { + puts_P(PSTR("Error Setting Device Configuration.\r\n")); + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + return; + } + + VirtualSerial_CDC_Interface.State.LineEncoding.BaudRateBPS = 9600; + VirtualSerial_CDC_Interface.State.LineEncoding.CharFormat = CDC_LINEENCODING_OneStopBit; + VirtualSerial_CDC_Interface.State.LineEncoding.ParityType = CDC_PARITY_None; + VirtualSerial_CDC_Interface.State.LineEncoding.DataBits = 8; + + if (CDC_Host_SetLineEncoding(&VirtualSerial_CDC_Interface)) + { + puts_P(PSTR("Error Setting Device Line Encoding.\r\n")); + 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_ShutDown(); + USB_Disable(); printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n" " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode); @@ -182,12 +195,14 @@ void EVENT_USB_Host_HostError(const uint8_t ErrorCode) /** 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) +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); } +