1 /*- 2 * Copyright (c) 2005 Olivier Houchard. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 /* $FreeBSD$ */ 27 28 #ifndef AT91USARTREG_H_ 29 #define AT91USARTREG_H_ 30 31 #define USART_CR 0x00 /* Control register */ 32 #define USART_CR_RSTRX (1UL << 2) /* Reset Receiver */ 33 #define USART_CR_RSTTX (1UL << 3) /* Reset Transmitter */ 34 #define USART_CR_RXEN (1UL << 4) /* Receiver Enable */ 35 #define USART_CR_RXDIS (1UL << 5) /* Receiver Disable */ 36 #define USART_CR_TXEN (1UL << 6) /* Transmitter Enable */ 37 #define USART_CR_TXDIS (1UL << 7) /* Transmitter Disable */ 38 #define USART_CR_RSTSTA (1UL << 8) /* Reset Status Bits */ 39 #define USART_CR_STTBRK (1UL << 9) /* Start Break */ 40 #define USART_CR_STPBRK (1UL << 10) /* Stop Break */ 41 #define USART_CR_STTTO (1UL << 11) /* Start Time-out */ 42 #define USART_CR_SENDA (1UL << 12) /* Send Address */ 43 #define USART_CR_RSTIT (1UL << 13) /* Reset Iterations */ 44 #define USART_CR_RSTNACK (1UL << 14) /* Reset Non Acknowledge */ 45 #define USART_CR_RETTO (1UL << 15) /* Rearm Time-out */ 46 #define USART_CR_DTREN (1UL << 16) /* Data Terminal ready Enable */ 47 #define USART_CR_DTRDIS (1UL << 17) /* Data Terminal ready Disable */ 48 #define USART_CR_RTSEN (1UL << 18) /* Request to Send enable */ 49 #define USART_CR_RTSDIS (1UL << 19) /* Request to Send Disable */ 50 51 #define USART_MR 0x04 /* Mode register */ 52 #define USART_MR_MODE_NORMAL 0 /* Normal/Async/3-wire rs-232 */ 53 #define USART_MR_MODE_RS485 1 /* RS485 */ 54 #define USART_MR_MODE_HWFLOW 2 /* Hardware flow control/handshake */ 55 #define USART_MR_MODE_MODEM 3 /* Full modem protocol */ 56 #define USART_MR_MODE_ISO7816T0 4 /* ISO7816 T=0 */ 57 #define USART_MR_MODE_ISO7816T1 6 /* ISO7816 T=1 */ 58 #define USART_MR_MODE_IRDA 8 /* IrDA mode */ 59 #define USART_MR_USCLKS_MCK (0U << 4) /* use MCK for baudclock */ 60 #define USART_MR_USCLKS_MCKDIV (1U << 4) /* use MCK/DIV for baudclock */ 61 #define USART_MR_USCLKS_SCK (3U << 4) /* use SCK (ext) for baudclock */ 62 #define USART_MR_CHRL_5BITS (0U << 6) 63 #define USART_MR_CHRL_6BITS (1U << 6) 64 #define USART_MR_CHRL_7BITS (2U << 6) 65 #define USART_MR_CHRL_8BITS (3U << 6) 66 #define USART_MR_SYNC (1U << 8) /* 1 -> sync 0 -> async */ 67 #define USART_MR_PAR_EVEN (0U << 9) 68 #define USART_MR_PAR_ODD (1U << 9) 69 #define USART_MR_PAR_SPACE (2U << 9) 70 #define USART_MR_PAR_MARK (3U << 9) 71 #define USART_MR_PAR_NONE (4U << 9) 72 #define USART_MR_PAR_MULTIDROP (6U << 9) 73 #define USART_MR_NBSTOP_1 (0U << 12) 74 #define USART_MR_NBSTOP_1_5 (1U << 12) 75 #define USART_MR_NBSTOP_2 (2U << 12) 76 #define USART_MR_CHMODE_NORMAL (0U << 14) 77 #define USART_MR_CHMODE_ECHO (1U << 14) 78 #define USART_MR_CHMODE_LOOP (2U << 14) 79 #define USART_MR_CHMODE_REMLOOP (3U << 14) 80 #define USART_MR_MSBF (1U << 16) 81 #define USART_MR_MODE9 (1U << 17) 82 #define USART_MR_CKLO_SCK (1U << 18) 83 #define USART_MR_OVER16 0 84 #define USART_MR_OVER8 (1U << 19) 85 #define USART_MR_INACK (1U << 20) /* Inhibit NACK generation */ 86 #define USART_MR_DSNACK (1U << 21) /* Disable Successive NACK */ 87 #define USART_MR_MAXITERATION(x) ((x) << 24) 88 #define USART_MR_FILTER (1U << 28) /* Filters for Ir lines */ 89 90 #define USART_IER 0x08 /* Interrupt enable register */ 91 #define USART_IDR 0x0c /* Interrupt disable register */ 92 #define USART_IMR 0x10 /* Interrupt mask register */ 93 #define USART_CSR 0x14 /* Channel status register */ 94 95 #define USART_CSR_RXRDY (1UL << 0) /* Receiver ready */ 96 #define USART_CSR_TXRDY (1UL << 1) /* Transmitter ready */ 97 #define USART_CSR_RXBRK (1UL << 2) /* Break received */ 98 #define USART_CSR_ENDRX (1UL << 3) /* End of Transfer RX from PDC */ 99 #define USART_CSR_ENDTX (1UL << 4) /* End of Transfer TX from PDC */ 100 #define USART_CSR_OVRE (1UL << 5) /* Overrun error */ 101 #define USART_CSR_FRAME (1UL << 6) /* Framing error */ 102 #define USART_CSR_PARE (1UL << 7) /* Parity Error */ 103 #define USART_CSR_TIMEOUT (1UL << 8) /* Timeout since start-timeout */ 104 #define USART_CSR_TXEMPTY (1UL << 9) /* Transmitter empty */ 105 #define USART_CSR_ITERATION (1UL << 10) /* max repetitions since RSIT */ 106 #define USART_CSR_TXBUFE (1UL << 11) /* Buffer empty from PDC */ 107 #define USART_CSR_RXBUFF (1UL << 12) /* Buffer full from PDC */ 108 #define USART_CSR_NACK (1UL << 13) /* NACK since last RSTNACK */ 109 #define USART_CSR_RIIC (1UL << 16) /* RI delta since last csr read */ 110 #define USART_CSR_DSRIC (1UL << 17) /* DSR delta */ 111 #define USART_CSR_DCDIC (1UL << 18) /* DCD delta */ 112 #define USART_CSR_CTSIC (1UL << 19) /* CTS delta */ 113 #define USART_CSR_RI (1UL << 20) /* RI status */ 114 #define USART_CSR_DSR (1UL << 21) /* DSR status */ 115 #define USART_CSR_DCD (1UL << 22) /* DCD status */ 116 #define USART_CSR_CTS (1UL << 23) /* CTS status */ 117 118 #define USART_RHR 0x18 /* Receiver holding register */ 119 #define USART_THR 0x1c /* Transmitter holding register */ 120 #define USART_BRGR 0x20 /* Baud rate generator register */ 121 #define USART_RTOR 0x24 /* Receiver time-out register */ 122 #define USART_TTR 0x28 /* Transmitter timeguard register */ 123 /* 0x2c to 0x3c reserved */ 124 #define USART_FDRR 0x40 /* FI DI ratio register */ 125 #define USART_NER 0x44 /* Number of errors register */ 126 /* 0x48 reserved */ 127 #define USART_IFR 0x48 /* IrDA filter register */ 128 129 #endif /* AT91RM92REG_H_ */ 130