root/include/linux/atmel_serial.h

/*
 * include/linux/atmel_serial.h
 *
 * Copyright (C) 2005 Ivan Kokshaysky
 * Copyright (C) SAN People
 *
 * USART registers.
 * Based on AT91RM9200 datasheet revision E.
 *
 * 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.
 */

#ifndef ATMEL_SERIAL_H
#define ATMEL_SERIAL_H

#define ATMEL_US_CR             0x00                    /* Control Register */
#define         ATMEL_US_RSTRX          (1 <<  2)               /* Reset Receiver */
#define         ATMEL_US_RSTTX          (1 <<  3)               /* Reset Transmitter */
#define         ATMEL_US_RXEN           (1 <<  4)               /* Receiver Enable */
#define         ATMEL_US_RXDIS          (1 <<  5)               /* Receiver Disable */
#define         ATMEL_US_TXEN           (1 <<  6)               /* Transmitter Enable */
#define         ATMEL_US_TXDIS          (1 <<  7)               /* Transmitter Disable */
#define         ATMEL_US_RSTSTA         (1 <<  8)               /* Reset Status Bits */
#define         ATMEL_US_STTBRK         (1 <<  9)               /* Start Break */
#define         ATMEL_US_STPBRK         (1 << 10)               /* Stop Break */
#define         ATMEL_US_STTTO          (1 << 11)               /* Start Time-out */
#define         ATMEL_US_SENDA          (1 << 12)               /* Send Address */
#define         ATMEL_US_RSTIT          (1 << 13)               /* Reset Iterations */
#define         ATMEL_US_RSTNACK        (1 << 14)               /* Reset Non Acknowledge */
#define         ATMEL_US_RETTO          (1 << 15)               /* Rearm Time-out */
#define         ATMEL_US_DTREN          (1 << 16)               /* Data Terminal Ready Enable [AT91RM9200 only] */
#define         ATMEL_US_DTRDIS         (1 << 17)               /* Data Terminal Ready Disable [AT91RM9200 only] */
#define         ATMEL_US_RTSEN          (1 << 18)               /* Request To Send Enable */
#define         ATMEL_US_RTSDIS         (1 << 19)               /* Request To Send Disable */

#define ATMEL_US_MR             0x04                    /* Mode Register */
#define         ATMEL_US_USMODE         (0xf <<  0)             /* Mode of the USART */
#define                 ATMEL_US_USMODE_NORMAL          0
#define                 ATMEL_US_USMODE_RS485           1
#define                 ATMEL_US_USMODE_HWHS            2
#define                 ATMEL_US_USMODE_MODEM           3
#define                 ATMEL_US_USMODE_ISO7816_T0      4
#define                 ATMEL_US_USMODE_ISO7816_T1      6
#define                 ATMEL_US_USMODE_IRDA            8
#define         ATMEL_US_USCLKS         (3   <<  4)             /* Clock Selection */
#define                 ATMEL_US_USCLKS_MCK             (0 <<  4)
#define                 ATMEL_US_USCLKS_MCK_DIV8        (1 <<  4)
#define                 ATMEL_US_USCLKS_SCK             (3 <<  4)
#define         ATMEL_US_CHRL           (3   <<  6)             /* Character Length */
#define                 ATMEL_US_CHRL_5                 (0 <<  6)
#define                 ATMEL_US_CHRL_6                 (1 <<  6)
#define                 ATMEL_US_CHRL_7                 (2 <<  6)
#define                 ATMEL_US_CHRL_8                 (3 <<  6)
#define         ATMEL_US_SYNC           (1 <<  8)               /* Synchronous Mode Select */
#define         ATMEL_US_PAR            (7 <<  9)               /* Parity Type */
#define                 ATMEL_US_PAR_EVEN               (0 <<  9)
#define                 ATMEL_US_PAR_ODD                (1 <<  9)
#define                 ATMEL_US_PAR_SPACE              (2 <<  9)
#define                 ATMEL_US_PAR_MARK               (3 <<  9)
#define                 ATMEL_US_PAR_NONE               (4 <<  9)
#define                 ATMEL_US_PAR_MULTI_DROP         (6 <<  9)
#define         ATMEL_US_NBSTOP         (3 << 12)               /* Number of Stop Bits */
#define                 ATMEL_US_NBSTOP_1               (0 << 12)
#define                 ATMEL_US_NBSTOP_1_5             (1 << 12)
#define                 ATMEL_US_NBSTOP_2               (2 << 12)
#define         ATMEL_US_CHMODE         (3 << 14)               /* Channel Mode */
#define                 ATMEL_US_CHMODE_NORMAL          (0 << 14)
#define                 ATMEL_US_CHMODE_ECHO            (1 << 14)
#define                 ATMEL_US_CHMODE_LOC_LOOP        (2 << 14)
#define                 ATMEL_US_CHMODE_REM_LOOP        (3 << 14)
#define         ATMEL_US_MSBF           (1 << 16)               /* Bit Order */
#define         ATMEL_US_MODE9          (1 << 17)               /* 9-bit Character Length */
#define         ATMEL_US_CLKO           (1 << 18)               /* Clock Output Select */
#define         ATMEL_US_OVER           (1 << 19)               /* Oversampling Mode */
#define         ATMEL_US_INACK          (1 << 20)               /* Inhibit Non Acknowledge */
#define         ATMEL_US_DSNACK         (1 << 21)               /* Disable Successive NACK */
#define         ATMEL_US_MAX_ITER       (7 << 24)               /* Max Iterations */
#define         ATMEL_US_FILTER         (1 << 28)               /* Infrared Receive Line Filter */

#define ATMEL_US_IER            0x08                    /* Interrupt Enable Register */
#define         ATMEL_US_RXRDY          (1 <<  0)               /* Receiver Ready */
#define         ATMEL_US_TXRDY          (1 <<  1)               /* Transmitter Ready */
#define         ATMEL_US_RXBRK          (1 <<  2)               /* Break Received / End of Break */
#define         ATMEL_US_ENDRX          (1 <<  3)               /* End of Receiver Transfer */
#define         ATMEL_US_ENDTX          (1 <<  4)               /* End of Transmitter Transfer */
#define         ATMEL_US_OVRE           (1 <<  5)               /* Overrun Error */
#define         ATMEL_US_FRAME          (1 <<  6)               /* Framing Error */
#define         ATMEL_US_PARE           (1 <<  7)               /* Parity Error */
#define         ATMEL_US_TIMEOUT        (1 <<  8)               /* Receiver Time-out */
#define         ATMEL_US_TXEMPTY        (1 <<  9)               /* Transmitter Empty */
#define         ATMEL_US_ITERATION      (1 << 10)               /* Max number of Repetitions Reached */
#define         ATMEL_US_TXBUFE         (1 << 11)               /* Transmission Buffer Empty */
#define         ATMEL_US_RXBUFF         (1 << 12)               /* Reception Buffer Full */
#define         ATMEL_US_NACK           (1 << 13)               /* Non Acknowledge */
#define         ATMEL_US_RIIC           (1 << 16)               /* Ring Indicator Input Change [AT91RM9200 only] */
#define         ATMEL_US_DSRIC          (1 << 17)               /* Data Set Ready Input Change [AT91RM9200 only] */
#define         ATMEL_US_DCDIC          (1 << 18)               /* Data Carrier Detect Input Change [AT91RM9200 only] */
#define         ATMEL_US_CTSIC          (1 << 19)               /* Clear to Send Input Change */
#define         ATMEL_US_RI             (1 << 20)               /* RI */
#define         ATMEL_US_DSR            (1 << 21)               /* DSR */
#define         ATMEL_US_DCD            (1 << 22)               /* DCD */
#define         ATMEL_US_CTS            (1 << 23)               /* CTS */

#define ATMEL_US_IDR            0x0c                    /* Interrupt Disable Register */
#define ATMEL_US_IMR            0x10                    /* Interrupt Mask Register */
#define ATMEL_US_CSR            0x14                    /* Channel Status Register */
#define ATMEL_US_RHR            0x18                    /* Receiver Holding Register */
#define ATMEL_US_THR            0x1c                    /* Transmitter Holding Register */
#define         ATMEL_US_SYNH           (1 << 15)               /* Transmit/Receive Sync [AT91SAM9261 only] */

#define ATMEL_US_BRGR           0x20                    /* Baud Rate Generator Register */
#define         ATMEL_US_CD             (0xffff << 0)           /* Clock Divider */

#define ATMEL_US_RTOR           0x24                    /* Receiver Time-out Register */
#define         ATMEL_US_TO             (0xffff << 0)           /* Time-out Value */

#define ATMEL_US_TTGR           0x28                    /* Transmitter Timeguard Register */
#define         ATMEL_US_TG             (0xff << 0)             /* Timeguard Value */

#define ATMEL_US_FIDI           0x40                    /* FI DI Ratio Register */
#define ATMEL_US_NER            0x44                    /* Number of Errors Register */
#define ATMEL_US_IF             0x4c                    /* IrDA Filter Register */

#define ATMEL_US_NAME           0xf0                    /* Ip Name */
#define ATMEL_US_VERSION        0xfc                    /* Ip Version */

#endif