/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ /*This file is prepared for Doxygen automatic documentation generation.*/ /*! \file ********************************************************************* * * \brief NEWLIB_ADDONS USART include file for AVR32. * * - Compiler: GNU GCC for AVR32 * - Supported devices: All AVR32 devices can be used. * - AppNote: * * \author Atmel Corporation: http://www.atmel.com \n * Support and FAQ: http://support.atmel.no/ * ******************************************************************************/ /* Copyright (c) 2009 Atmel Corporation. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The name of Atmel may not be used to endorse or promote products derived * from this software without specific prior written permission. * * 4. This software may only be redistributed and used in connection with an Atmel * AVR product. * * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE * */ #ifndef __AVR32_NEWLIB_ADDONS_USART_H__ #define __AVR32_NEWLIB_ADDONS_USART_H__ #include <_ansi.h> #include "nlao_io.h" _BEGIN_STD_C struct usart3 { volatile u32 us_cr; volatile u32 us_mr; volatile u32 us_ier; volatile u32 us_idr; volatile u32 us_imr; volatile u32 us_csr; volatile u32 us_rhr; volatile u32 us_thr; volatile u32 us_brgr; volatile u32 us_rtor; volatile u32 us_ttgr; volatile u32 us_reserved[5]; volatile u32 us_fidi; volatile u32 us_ner; volatile u32 us_xxr; volatile u32 us_if; }; /* Register offsets */ #define US_CR 0x0000 #define US_MR 0x0004 #define US_IER 0x0008 #define US_IDR 0x000c #define US_IMR 0x0010 #define US_CSR 0x0014 #define US_RHR 0x0018 #define US_THR 0x001c #define US_BRGR 0x0020 #define US_RTOR 0x0024 #define US_TTGR 0x0028 #define US_FIDI 0x0040 #define US_NER 0x0044 #define US_XXR 0x0048 #define US_IF 0x004c #define US_RPR 0x0100 #define US_RCR 0x0104 #define US_TPR 0x0108 #define US_TCR 0x010c #define US_RNPR 0x0110 #define US_RNCR 0x0114 #define US_TNPR 0x0118 #define US_TNCR 0x011c #define US_PTCR 0x0120 #define US_PTSR 0x0124 /* USART3 Control Register */ #define US_CR_RSTRX (1 << 2) #define US_CR_RSTTX (1 << 3) #define US_CR_RXEN (1 << 4) #define US_CR_RXDIS (1 << 5) #define US_CR_TXEN (1 << 6) #define US_CR_TXDIS (1 << 7) #define US_CR_RSTSTA (1 << 8) #define US_CR_STTBRK (1 << 9) #define US_CR_STPBRK (1 << 10) #define US_CR_DTREN (1 << 16) #define US_CR_DTRDIS (1 << 17) #define US_CR_RTSEN (1 << 18) #define US_CR_RTSDIS (1 << 19) /* USART3 Mode Register */ #define US_MR_MODE (15 << 0) #define US_MR_MODE_NORMAL ( 0 << 0) #define US_MR_MODE_HWFLOW ( 2 << 0) #define US_MR_CLKS ( 3 << 4) #define US_MR_CLKS_CLOCK ( 0 << 4) #define US_MR_CLKS_FDIV1 ( 1 << 4) #define US_MR_CLKS_SLOW ( 2 << 4) #define US_MR_CLKS_EXT ( 3 << 4) #define US_MR_CHRL_5BITS ( 0 << 6) #define US_MR_CHRL_6BITS ( 1 << 6) #define US_MR_CHRL_7BITS ( 2 << 6) #define US_MR_CHRL_8BITS ( 3 << 6) #define US_MR_SYNC ( 1 << 8) #define US_MR_PAR_EVEN ( 0 << 9) #define US_MR_PAR_ODD ( 1 << 9) #define US_MR_PAR_SPACE ( 2 << 9) #define US_MR_PAR_MARK ( 3 << 9) #define US_MR_PAR_NONE ( 4 << 9) #define US_MR_PAR_MDROP ( 6 << 9) #define US_MR_NBSTOP_1BIT ( 0 << 12) #define US_MR_NBSTOP_1_5BIT ( 1 << 12) #define US_MR_NBSTOP_2BITS ( 2 << 12) #define US_MR_OVER ( 1 << 19) #define US_MR_OVER_X16 ( 0 << 19) #define US_MR_OVER_X8 ( 1 << 19) /* USART3 Channel Status Register */ #define US_CSR_RXRDY (1 << 0) #define US_CSR_TXRDY (1 << 1) #define US_CSR_RXBRK (1 << 2) #define US_CSR_ENDRX (1 << 3) #define US_CSR_ENDTX (1 << 4) #define US_CSR_OVRE (1 << 5) #define US_CSR_FRAME (1 << 6) #define US_CSR_PARE (1 << 7) #define US_CSR_TXEMPTY (1 << 9) #define US_CSR_TXBUFE (1 << 11) #define US_CSR_RXBUFF (1 << 12) #define US_CSR_RIIC (1 << 16) #define US_CSR_DSRIC (1 << 17) #define US_CSR_DCDIC (1 << 18) #define US_CSR_CTSIC (1 << 19) #define US_CSR_RI (1 << 20) #define US_CSR_DSR (1 << 21) #define US_CSR_DCD (1 << 22) #define US_CSR_CTS (1 << 23) /* USART3 Baud Rate Generator Register */ #define US_BRGR_CD_OFFSET 0 #define US_BRGR_FP_OFFSET 16 #define US_BRGR_CD_SIZE 16 #define US_BRGR_FP_SIZE 3 #define US_BRGR_CD (0xFFFF << 0) #define US_BRGR_FP ( 7 << 16) /*USART3 PDC Transfer Control Register */ #define US_PTCR_RXTEN (1 << 0) #define US_PTCR_RXTDIS (1 << 1) #define US_PTCR_TXTEN (1 << 8) #define US_PTCR_TXTDIS (1 << 9) /*USART3 PDC Transfer Status Register */ #define US_PTSR_RXTEN (1 << 0) #define US_PTSR_TXTEN (1 << 8) int usart_init(int baudrate); void usart_putc(char c); void usart_puts(const char *s); int usart_getc(void); int usart_tstc(void); void usart_setbrg(int baudrate, int cpu_clock); void set_usart_base(void *usart_base); _END_STD_C #endif /* MERLIN_USART3_H */