/* serial.c */ /* dev2 - Multi-purpose development board using USB and Ethernet. {{{ * * Copyright (C) 2009 Nicolas Schodet * * APBTeam: * Web: http://apbteam.org/ * Email: team AT apbteam DOT org * * This program 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 2 of the License, or * (at your option) any later version. * * This program 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 this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * * }}} */ #include "common.h" #include "io.h" #include "serial.h" #include "descriptors.h" #include "modules/uart/uart.h" #include "modules/usb/usb.h" #define RX D, 2 void serial_init (void) { /* Use Pull-up on RX pin. */ IO_DDR (RX) &= ~IO_BV (RX); IO_PORT (RX) |= IO_BV (RX); uart0_init (); } void serial_uninit (void) { /* Disable UART. */ UCSR1B = 0; IO_PORT (RX) &= ~IO_BV (RX); } void serial_task (void) { Endpoint_SelectEndpoint (SERIAL_RX_EPNUM); /* If data is available from USB: */ if (Endpoint_ReadWriteAllowed ()) { /* Read as much as possible, and clear endpoint. */ do { uart0_putc (Endpoint_Read_Byte ()); } while (Endpoint_ReadWriteAllowed ()); Endpoint_ClearCurrentBank (); } /* If data is available from uart and there is room in the TX endpoint: */ Endpoint_SelectEndpoint (SERIAL_TX_EPNUM); if (uart0_poll () && Endpoint_ReadWriteAllowed ()) { do { Endpoint_Write_Byte (uart0_getc ()); } while (uart0_poll () && Endpoint_ReadWriteAllowed ()); Endpoint_ClearCurrentBank (); } }