Linux-2.6.33.2/include/linux/cd1400.h
/*****************************************************************************/
/*
* cd1400.h -- cd1400 UART hardware info.
*
* Copyright (C) 1996-1998 Stallion Technologies
* Copyright (C) 1994-1996 Greg Ungerer.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*****************************************************************************/
#ifndef _CD1400_H
#define _CD1400_H
/*****************************************************************************/
/*
* Define the number of async ports per cd1400 uart chip.
*/
#define CD1400_PORTS 4
/*
* Define the cd1400 uarts internal FIFO sizes.
*/
#define CD1400_TXFIFOSIZE 12
#define CD1400_RXFIFOSIZE 12
/*
* Local RX FIFO thresh hold level. Also define the RTS thresh hold
* based on the RX thresh hold.
*/
#define FIFO_RXTHRESHOLD 6
#define FIFO_RTSTHRESHOLD 7
/*****************************************************************************/
/*
* Define the cd1400 register addresses. These are all the valid
* registers with the cd1400. Some are global, some virtual, some
* per port.
*/
#define GFRCR 0x40
#define CAR 0x68
#define GCR 0x4b
#define SVRR 0x67
#define RICR 0x44
#define TICR 0x45
#define MICR 0x46
#define RIR 0x6b
#define TIR 0x6a
#define MIR 0x69
#define PPR 0x7e
#define RIVR 0x43
#define TIVR 0x42
#define MIVR 0x41
#define TDR 0x63
#define RDSR 0x62
#define MISR 0x4c
#define EOSRR 0x60
#define LIVR 0x18
#define CCR 0x05
#define SRER 0x06
#define COR1 0x08
#define COR2 0x09
#define COR3 0x0a
#define COR4 0x1e
#define COR5 0x1f
#define CCSR 0x0b
#define RDCR 0x0e
#define SCHR1 0x1a
#define SCHR2 0x1b
#define SCHR3 0x1c
#define SCHR4 0x1d
#define SCRL 0x22
#define SCRH 0x23
#define LNC 0x24
#define MCOR1 0x15
#define MCOR2 0x16
#define RTPR 0x21
#define MSVR1 0x6c
#define MSVR2 0x6d
#define PSVR 0x6f
#define RBPR 0x78
#define RCOR 0x7c
#define TBPR 0x72
#define TCOR 0x76
/*****************************************************************************/
/*
* Define the set of baud rate clock divisors.
*/
#define CD1400_CLK0 8
#define CD1400_CLK1 32
#define CD1400_CLK2 128
#define CD1400_CLK3 512
#define CD1400_CLK4 2048
#define CD1400_NUMCLKS 5
/*****************************************************************************/
/*
* Define the clock pre-scalar value to be a 5 ms clock. This should be
* OK for now. It would probably be better to make it 10 ms, but we
* can't fit that divisor into 8 bits!
*/
#define PPR_SCALAR 244
/*****************************************************************************/
/*
* Define values used to set character size options.
*/
#define COR1_CHL5 0x00
#define COR1_CHL6 0x01
#define COR1_CHL7 0x02
#define COR1_CHL8 0x03
/*
* Define values used to set the number of stop bits.
*/
#define COR1_STOP1 0x00
#define COR1_STOP15 0x04
#define COR1_STOP2 0x08
/*
* Define values used to set the parity scheme in use.
*/
#define COR1_PARNONE 0x00
#define COR1_PARFORCE 0x20
#define COR1_PARENB 0x40
#define COR1_PARIGNORE 0x10
#define COR1_PARODD 0x80
#define COR1_PAREVEN 0x00
#define COR2_IXM 0x80
#define COR2_TXIBE 0x40
#define COR2_ETC 0x20
#define COR2_LLM 0x10
#define COR2_RLM 0x08
#define COR2_RTSAO 0x04
#define COR2_CTSAE 0x02
#define COR3_SCDRNG 0x80
#define COR3_SCD34 0x40
#define COR3_FCT 0x20
#define COR3_SCD12 0x10
/*
* Define values used by COR4.
*/
#define COR4_BRKINT 0x08
#define COR4_IGNBRK 0x18
/*****************************************************************************/
/*
* Define the modem control register values.
* Note that the actual hardware is a little different to the conventional
* pin names on the cd1400.
*/
#define MSVR1_DTR 0x01
#define MSVR1_DSR 0x10
#define MSVR1_RI 0x20
#define MSVR1_CTS 0x40
#define MSVR1_DCD 0x80
#define MSVR2_RTS 0x02
#define MSVR2_DSR 0x10
#define MSVR2_RI 0x20
#define MSVR2_CTS 0x40
#define MSVR2_DCD 0x80
#define MCOR1_DCD 0x80
#define MCOR1_CTS 0x40
#define MCOR1_RI 0x20
#define MCOR1_DSR 0x10
#define MCOR2_DCD 0x80
#define MCOR2_CTS 0x40
#define MCOR2_RI 0x20
#define MCOR2_DSR 0x10
/*****************************************************************************/
/*
* Define the bits used with the service (interrupt) enable register.
*/
#define SRER_NNDT 0x01
#define SRER_TXEMPTY 0x02
#define SRER_TXDATA 0x04
#define SRER_RXDATA 0x10
#define SRER_MODEM 0x80
/*****************************************************************************/
/*
* Define operational commands for the command register.
*/
#define CCR_RESET 0x80
#define CCR_CORCHANGE 0x4e
#define CCR_SENDCH 0x20
#define CCR_CHANCTRL 0x10
#define CCR_TXENABLE (CCR_CHANCTRL | 0x08)
#define CCR_TXDISABLE (CCR_CHANCTRL | 0x04)
#define CCR_RXENABLE (CCR_CHANCTRL | 0x02)
#define CCR_RXDISABLE (CCR_CHANCTRL | 0x01)
#define CCR_SENDSCHR1 (CCR_SENDCH | 0x01)
#define CCR_SENDSCHR2 (CCR_SENDCH | 0x02)
#define CCR_SENDSCHR3 (CCR_SENDCH | 0x03)
#define CCR_SENDSCHR4 (CCR_SENDCH | 0x04)
#define CCR_RESETCHAN (CCR_RESET | 0x00)
#define CCR_RESETFULL (CCR_RESET | 0x01)
#define CCR_TXFLUSHFIFO (CCR_RESET | 0x02)
#define CCR_MAXWAIT 10000
/*****************************************************************************/
/*
* Define the valid acknowledgement types (for hw ack cycle).
*/
#define ACK_TYPMASK 0x07
#define ACK_TYPTX 0x02
#define ACK_TYPMDM 0x01
#define ACK_TYPRXGOOD 0x03
#define ACK_TYPRXBAD 0x07
#define SVRR_RX 0x01
#define SVRR_TX 0x02
#define SVRR_MDM 0x04
#define ST_OVERRUN 0x01
#define ST_FRAMING 0x02
#define ST_PARITY 0x04
#define ST_BREAK 0x08
#define ST_SCHAR1 0x10
#define ST_SCHAR2 0x20
#define ST_SCHAR3 0x30
#define ST_SCHAR4 0x40
#define ST_RANGE 0x70
#define ST_SCHARMASK 0x70
#define ST_TIMEOUT 0x80
#define MISR_DCD 0x80
#define MISR_CTS 0x40
#define MISR_RI 0x20
#define MISR_DSR 0x10
/*****************************************************************************/
/*
* Defines for the CCSR status register.
*/
#define CCSR_RXENABLED 0x80
#define CCSR_RXFLOWON 0x40
#define CCSR_RXFLOWOFF 0x20
#define CCSR_TXENABLED 0x08
#define CCSR_TXFLOWON 0x04
#define CCSR_TXFLOWOFF 0x02
/*****************************************************************************/
/*
* Define the embedded commands.
*/
#define ETC_CMD 0x00
#define ETC_STARTBREAK 0x81
#define ETC_DELAY 0x82
#define ETC_STOPBREAK 0x83
/*****************************************************************************/
#endif