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Diffstat (limited to 'lib/dualusbio.c')
-rw-r--r-- | lib/dualusbio.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/lib/dualusbio.c b/lib/dualusbio.c new file mode 100644 index 0000000..d774d6a --- /dev/null +++ b/lib/dualusbio.c @@ -0,0 +1,129 @@ +/* + * spreadspace avr utils + * + * + * Copyright (C) 2013-2015 Christian Pointner <equinox@spreadspace.org> + * + * This file is part of spreadspace avr utils. + * + * spreadspace avr utils is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * any later version. + * + * spreadspace avr utils is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stdio.h> + +#include "dualusbio.h" + +/* + LUFA Library + Copyright (C) Dean Camera, 2012. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ +#include <LUFA/Drivers/USB/USB.h> +#include "lufa-descriptor-usbdualserial.h" + +USB_ClassInfo_CDC_Device_t VirtualSerial1_CDC_Interface = + { + .Config = + { + .ControlInterfaceNumber = 0, + + .DataINEndpointNumber = CDC1_TX_EPNUM, + .DataINEndpointSize = CDC_TXRX_EPSIZE, + .DataINEndpointDoubleBank = false, + + .DataOUTEndpointNumber = CDC1_RX_EPNUM, + .DataOUTEndpointSize = CDC_TXRX_EPSIZE, + .DataOUTEndpointDoubleBank = false, + + .NotificationEndpointNumber = CDC1_NOTIFICATION_EPNUM, + .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE, + .NotificationEndpointDoubleBank = false, + }, + }; + +USB_ClassInfo_CDC_Device_t VirtualSerial2_CDC_Interface = + { + .Config = + { + .ControlInterfaceNumber = 2, + + .DataINEndpointNumber = CDC2_TX_EPNUM, + .DataINEndpointSize = CDC_TXRX_EPSIZE, + .DataINEndpointDoubleBank = false, + + .DataOUTEndpointNumber = CDC2_RX_EPNUM, + .DataOUTEndpointSize = CDC_TXRX_EPSIZE, + .DataOUTEndpointDoubleBank = false, + + .NotificationEndpointNumber = CDC2_NOTIFICATION_EPNUM, + .NotificationEndpointSize = CDC_NOTIFICATION_EPSIZE, + .NotificationEndpointDoubleBank = false, + }, + }; + +void EVENT_USB_Device_ConfigurationChanged(void) +{ + CDC_Device_ConfigureEndpoints(&VirtualSerial1_CDC_Interface); + CDC_Device_ConfigureEndpoints(&VirtualSerial2_CDC_Interface); +} + +void EVENT_USB_Device_ControlRequest(void) +{ + CDC_Device_ProcessControlRequest(&VirtualSerial1_CDC_Interface); + CDC_Device_ProcessControlRequest(&VirtualSerial2_CDC_Interface); +} + +FILE usbio_port1; +FILE usbio_port2; + +void dualusbio_init(void) +{ + USB_Init(); + CDC_Device_CreateStream(&VirtualSerial1_CDC_Interface, &usbio_port1); + CDC_Device_CreateStream(&VirtualSerial2_CDC_Interface, &usbio_port2); +} + + +void dualusbio_task(void) +{ +#if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR) + if(USB_DeviceState == DEVICE_STATE_Unattached && USB_VBUS_GetStatus()) { + USB_Disable(); + USB_Init(); + } +#endif + + CDC_Device_USBTask(&VirtualSerial1_CDC_Interface); + CDC_Device_USBTask(&VirtualSerial2_CDC_Interface); + USB_USBTask(); +} + +void dualusbio_make_stdio(uint8_t port) +{ + switch(port) { + case 1: stdin = stdout = stderr = &usbio_port1; break; + case 2: stdin = stdout = stderr = &usbio_port2; break; + } +} + +int16_t dualusbio_bytes_received(uint8_t port) +{ + switch(port) { + case 1: return CDC_Device_BytesReceived(&VirtualSerial1_CDC_Interface); + case 2: return CDC_Device_BytesReceived(&VirtualSerial2_CDC_Interface); + } + return 0; +} |