diff options
Diffstat (limited to 'lib/dualusbio.c')
| -rw-r--r-- | lib/dualusbio.c | 146 |
1 files changed, 88 insertions, 58 deletions
diff --git a/lib/dualusbio.c b/lib/dualusbio.c index d774d6a..27d72ea 100644 --- a/lib/dualusbio.c +++ b/lib/dualusbio.c @@ -34,69 +34,73 @@ #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, - }, - }; +USB_ClassInfo_CDC_Device_t VirtualSerial_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, + }, + },{ + .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); + CDC_Device_ConfigureEndpoints(&(VirtualSerial_CDC_Interface[0])); + CDC_Device_ConfigureEndpoints(&(VirtualSerial_CDC_Interface[1])); } void EVENT_USB_Device_ControlRequest(void) { - CDC_Device_ProcessControlRequest(&VirtualSerial1_CDC_Interface); - CDC_Device_ProcessControlRequest(&VirtualSerial2_CDC_Interface); + CDC_Device_ProcessControlRequest(&(VirtualSerial_CDC_Interface[0])); + CDC_Device_ProcessControlRequest(&(VirtualSerial_CDC_Interface[1])); } -FILE usbio_port1; -FILE usbio_port2; + +static int dummy_putchar(char DataByte, FILE *Stream) { return 0; } +static int dummy_getchar(FILE *Stream) { return 0; } +static FILE dummy_stream = FDEV_SETUP_STREAM(dummy_putchar, dummy_getchar, _FDEV_SETUP_RW); +static FILE usb_stream[2]; +FILE* usbio[2] = { &dummy_stream, &dummy_stream }; +static uint8_t stdio_port = 255; + void dualusbio_init(void) { USB_Init(); - CDC_Device_CreateStream(&VirtualSerial1_CDC_Interface, &usbio_port1); - CDC_Device_CreateStream(&VirtualSerial2_CDC_Interface, &usbio_port2); + CDC_Device_CreateStream(&(VirtualSerial_CDC_Interface[0]), &usb_stream[0]); + CDC_Device_CreateStream(&(VirtualSerial_CDC_Interface[1]), &usb_stream[1]); } - void dualusbio_task(void) { #if defined(USB_SERIES_4_AVR) || defined(USB_SERIES_6_AVR) || defined(USB_SERIES_7_AVR) @@ -106,24 +110,50 @@ void dualusbio_task(void) } #endif - CDC_Device_USBTask(&VirtualSerial1_CDC_Interface); - CDC_Device_USBTask(&VirtualSerial2_CDC_Interface); + CDC_Device_USBTask(&(VirtualSerial_CDC_Interface[0])); + CDC_Device_USBTask(&(VirtualSerial_CDC_Interface[1])); 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; - } + stdio_port = port; + + if(port < 2 && usbio[port] == &(usb_stream[port])) + stdin = stdout = stderr = &(usb_stream[port]); + else + stdin = stdout = stderr = &dummy_stream; } 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); - } + if(port < 2 && usbio[port] == &(usb_stream[port])) + return CDC_Device_BytesReceived(&(VirtualSerial_CDC_Interface[port])); + return 0; } + +void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo) +{ + uint8_t p; + for(p = 0; p < 2; p++) { + if(CDCInterfaceInfo == &(VirtualSerial_CDC_Interface[p])) { + if(CDCInterfaceInfo->State.ControlLineStates.HostToDevice & CDC_CONTROL_LINE_OUT_DTR) { + usbio[p] = &(usb_stream[p]); + if(p == stdio_port) stdin = stdout = stderr = &(usb_stream[p]); + } else { + usbio[p] = &dummy_stream; + if(p == stdio_port) stdin = stdout = stderr = &dummy_stream; + } + + break; + } + } +} + +void EVENT_USB_Device_Disconnect(void) +{ + usbio[0] = &dummy_stream; + usbio[1] = &dummy_stream; + stdin = stdout = stderr = &dummy_stream; +} |