/*****************************************************************************/ /* * sc26198.h -- SC26198 UART hardware info. * * Copyright (C) 1995-1998 Stallion Technologies * * 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 _SC26198_H #define _SC26198_H /*****************************************************************************/ /* * Define the number of async ports per sc26198 uart device. */ #define SC26198_PORTS 8 /* * Baud rate timing clocks. All derived from a master 14.7456 MHz clock. */ #define SC26198_MASTERCLOCK 14745600L #define SC26198_DCLK (SC26198_MASTERCLOCK) #define SC26198_CCLK (SC26198_MASTERCLOCK / 2) #define SC26198_BCLK (SC26198_MASTERCLOCK / 4) /* * Define internal FIFO sizes for the 26198 ports. */ #define SC26198_TXFIFOSIZE 16 #define SC26198_RXFIFOSIZE 16 /*****************************************************************************/ /* * Global register definitions. These registers are global to each 26198 * device, not specific ports on it. */ #define TSTR 0x0d #define GCCR 0x0f #define ICR 0x1b #define WDTRCR 0x1d #define IVR 0x1f #define BRGTRUA 0x84 #define GPOSR 0x87 #define GPOC 0x8b #define UCIR 0x8c #define CIR 0x8c #define BRGTRUB 0x8d #define GRXFIFO 0x8e #define GTXFIFO 0x8e #define GCCR2 0x8f #define BRGTRLA 0x94 #define GPOR 0x97 #define GPOD 0x9b #define BRGTCR 0x9c #define GICR 0x9c #define BRGTRLB 0x9d #define GIBCR 0x9d #define GITR 0x9f /* * Per port channel registers. These are the register offsets within * the port address space, so need to have the port address (0 to 7) * inserted in bit positions 4:6. */ #define MR0 0x00 #define MR1 0x01 #define IOPCR 0x02 #define BCRBRK 0x03 #define BCRCOS 0x04 #define BCRX 0x06 #define BCRA 0x07 #define XONCR 0x08 #define XOFFCR 0x09 #define ARCR 0x0a #define RXCSR 0x0c #define TXCSR 0x0e #define MR2 0x80 #define SR 0x81 #define SCCR 0x81 #define ISR 0x82 #define IMR 0x82 #define TXFIFO 0x83 #define RXFIFO 0x83 #define IPR 0x84 #define IOPIOR 0x85 #define XISR 0x86 /* * For any given port calculate the address to use to access a specified * register. This is only used for unusual access, mostly this is done * through the assembler access routines. */ #define SC26198_PORTREG(port,reg) ((((port) & 0x07) << 4) | (reg)) /*****************************************************************************/ /* * Global configuration control register bit definitions. */ #define GCCR_NOACK 0x00 #define GCCR_IVRACK 0x02 #define GCCR_IVRCHANACK 0x04 #define GCCR_IVRTYPCHANACK 0x06 #define GCCR_ASYNCCYCLE 0x00 #define GCCR_SYNCCYCLE 0x40 /*****************************************************************************/ /* * Mode register 0 bit definitions. */ #define MR0_ADDRNONE 0x00 #define MR0_AUTOWAKE 0x01 #define MR0_AUTODOZE 0x02 #define MR0_AUTOWAKEDOZE 0x03 #define MR0_SWFNONE 0x00 #define MR0_SWFTX 0x04 #define MR0_SWFRX 0x08 #define MR0_SWFRXTX 0x0c #define MR0_TXMASK 0x30 #define MR0_TXEMPTY 0x00 #define MR0_TXHIGH 0x10 #define MR0_TXHALF 0x20 #define MR0_TXRDY 0x00 #define MR0_ADDRNT 0x00 #define MR0_ADDRT 0x40 #define MR0_SWFNT 0x00 #define MR0_SWFT 0x80 /* * Mode register 1 bit definitions. */ #define MR1_CS5 0x00 #define MR1_CS6 0x01 #define MR1_CS7 0x02 #define MR1_CS8 0x03 #define MR1_PAREVEN 0x00 #define MR1_PARODD 0x04 #define MR1_PARENB 0x00 #define MR1_PARFORCE 0x08 #define MR1_PARNONE 0x10 #define MR1_PARSPECIAL 0x18 #define MR1_ERRCHAR 0x00 #define MR1_ERRBLOCK 0x20 #define MR1_ISRUNMASKED 0x00 #define MR1_ISRMASKED 0x40 #define MR1_AUTORTS 0x80 /* * Mode register 2 bit definitions. */ #define MR2_STOP1 0x00 #define MR2_STOP15 0x01 #define MR2_STOP2 0x02 #define MR2_STOP916 0x03 #define MR2_RXFIFORDY 0x00 #define MR2_RXFIFOHALF 0x04 #define MR2_RXFIFOHIGH 0x08 #define MR2_RXFIFOFULL 0x0c #define MR2_AUTOCTS 0x10 #define MR2_TXRTS 0x20 #define MR2_MODENORM 0x00 #define MR2_MODEAUTOECHO 0x40 #define MR2_MODELOOP 0x80 #define MR2_MODEREMECHO 0xc0 /*****************************************************************************/ /* * Baud Rate Generator (BRG) selector values. */ #define BRG_50 0x00 #define BRG_75 0x01 #define BRG_150 0x02 #define BRG_200 0x03 #define BRG_300 0x04 #define BRG_450 0x05 #define BRG_600 0x06 #define BRG_900 0x07 #define BRG_1200 0x08 #define BRG_1800 0x09 #define BRG_2400 0x0a #define BRG_3600 0x0b #define BRG_4800 0x0c #define BRG_7200 0x0d #define BRG_9600 0x0e #define BRG_14400 0x0f #define BRG_19200 0x10 #define BRG_28200 0x11 #define BRG_38400 0x12 #define BRG_57600 0x13 #define BRG_115200 0x14 #define BRG_230400 0x15 #define BRG_GIN0 0x16 #define BRG_GIN1 0x17 #define BRG_CT0 0x18 #define BRG_CT1 0x19 #define BRG_RX2TX316 0x1b #define BRG_RX2TX31 0x1c #define SC26198_MAXBAUD 921600 /*****************************************************************************/ /* * Command register command definitions. */ #define CR_NULL 0x04 #define CR_ADDRNORMAL 0x0c #define CR_RXRESET 0x14 #define CR_TXRESET 0x1c #define CR_CLEARRXERR 0x24 #define CR_BREAKRESET 0x2c #define CR_TXSTARTBREAK 0x34 #define CR_TXSTOPBREAK 0x3c #define CR_RTSON 0x44 #define CR_RTSOFF 0x4c #define CR_ADDRINIT 0x5c #define CR_RXERRBLOCK 0x6c #define CR_TXSENDXON 0x84 #define CR_TXSENDXOFF 0x8c #define CR_GANGXONSET 0x94 #define CR_GANGXOFFSET 0x9c #define CR_GANGXONINIT 0xa4 #define CR_GANGXOFFINIT 0xac #define CR_HOSTXON 0xb4 #define CR_HOSTXOFF 0xbc #define CR_CANCELXOFF 0xc4 #define CR_ADDRRESET 0xdc #define CR_RESETALLPORTS 0xf4 #define CR_RESETALL 0xfc #define CR_RXENABLE 0x01 #define CR_TXENABLE 0x02 /*****************************************************************************/ /* * Channel status register. */ #define SR_RXRDY 0x01 #define SR_RXFULL 0x02 #define SR_TXRDY 0x04 #define SR_TXEMPTY 0x08 #define SR_RXOVERRUN 0x10 #define SR_RXPARITY 0x20 #define SR_RXFRAMING 0x40 #define SR_RXBREAK 0x80 #define SR_RXERRS (SR_RXPARITY | SR_RXFRAMING | SR_RXOVERRUN) /*****************************************************************************/ /* * Interrupt status register and interrupt mask register bit definitions. */ #define IR_TXRDY 0x01 #define IR_RXRDY 0x02 #define IR_RXBREAK 0x04 #define IR_XONXOFF 0x10 #define IR_ADDRRECOG 0x20 #define IR_RXWATCHDOG 0x40 #define IR_IOPORT 0x80 /*****************************************************************************/ /* * Interrupt vector register field definitions. */ #define IVR_CHANMASK 0x07 #define IVR_TYPEMASK 0x18 #define IVR_CONSTMASK 0xc0 #define IVR_RXDATA 0x10 #define IVR_RXBADDATA 0x18 #define IVR_TXDATA 0x08 #define IVR_OTHER 0x00 /*****************************************************************************/ /* * BRG timer control register bit definitions. */ #define BRGCTCR_DISABCLK0 0x00 #define BRGCTCR_ENABCLK0 0x08 #define BRGCTCR_DISABCLK1 0x00 #define BRGCTCR_ENABCLK1 0x80 #define BRGCTCR_0SCLK16 0x00 #define BRGCTCR_0SCLK32 0x01 #define BRGCTCR_0SCLK64 0x02 #define BRGCTCR_0SCLK128 0x03 #define BRGCTCR_0X1 0x04 #define BRGCTCR_0X12 0x05 #define BRGCTCR_0IO1A 0x06 #define BRGCTCR_0GIN0 0x07 #define BRGCTCR_1SCLK16 0x00 #define BRGCTCR_1SCLK32 0x10 #define BRGCTCR_1SCLK64 0x20 #define BRGCTCR_1SCLK128 0x30 #define BRGCTCR_1X1 0x40 #define BRGCTCR_1X12 0x50 #define BRGCTCR_1IO1B 0x60 #define BRGCTCR_1GIN1 0x70 /*****************************************************************************/ /* * Watch dog timer enable register. */ #define WDTRCR_ENABALL 0xff /*****************************************************************************/ /* * XON/XOFF interrupt status register. */ #define XISR_TXCHARMASK 0x03 #define XISR_TXCHARNORMAL 0x00 #define XISR_TXWAIT 0x01 #define XISR_TXXOFFPEND 0x02 #define XISR_TXXONPEND 0x03 #define XISR_TXFLOWMASK 0x0c #define XISR_TXNORMAL 0x00 #define XISR_TXSTOPPEND 0x04 #define XISR_TXSTARTED 0x08 #define XISR_TXSTOPPED 0x0c #define XISR_RXFLOWMASK 0x30 #define XISR_RXFLOWNONE 0x00 #define XISR_RXXONSENT 0x10 #define XISR_RXXOFFSENT 0x20 #define XISR_RXXONGOT 0x40 #define XISR_RXXOFFGOT 0x80 /*****************************************************************************/ /* * Current interrupt register. */ #define CIR_TYPEMASK 0xc0 #define CIR_TYPEOTHER 0x00 #define CIR_TYPETX 0x40 #define CIR_TYPERXGOOD 0x80 #define CIR_TYPERXBAD 0xc0 #define CIR_RXDATA 0x80 #define CIR_RXBADDATA 0x40 #define CIR_TXDATA 0x40 #define CIR_CHANMASK 0x07 #define CIR_CNTMASK 0x38 #define CIR_SUBTYPEMASK 0x38 #define CIR_SUBNONE 0x00 #define CIR_SUBCOS 0x08 #define CIR_SUBADDR 0x10 #define CIR_SUBXONXOFF 0x18 #define CIR_SUBBREAK 0x28 /*****************************************************************************/ /* * Global interrupting channel register. */ #define GICR_CHANMASK 0x07 /*****************************************************************************/ /* * Global interrupting byte count register. */ #define GICR_COUNTMASK 0x0f /*****************************************************************************/ /* * Global interrupting type register. */ #define GITR_RXMASK 0xc0 #define GITR_RXNONE 0x00 #define GITR_RXBADDATA 0x80 #define GITR_RXGOODDATA 0xc0 #define GITR_TXDATA 0x20 #define GITR_SUBTYPEMASK 0x07 #define GITR_SUBNONE 0x00 #define GITR_SUBCOS 0x01 #define GITR_SUBADDR 0x02 #define GITR_SUBXONXOFF 0x03 #define GITR_SUBBREAK 0x05 /*****************************************************************************/ /* * Input port change register. */ #define IPR_CTS 0x01 #define IPR_DTR 0x02 #define IPR_RTS 0x04 #define IPR_DCD 0x08 #define IPR_CTSCHANGE 0x10 #define IPR_DTRCHANGE 0x20 #define IPR_RTSCHANGE 0x40 #define IPR_DCDCHANGE 0x80 #define IPR_CHANGEMASK 0xf0 /*****************************************************************************/ /* * IO port interrupt and output register. */ #define IOPR_CTS 0x01 #define IOPR_DTR 0x02 #define IOPR_RTS 0x04 #define IOPR_DCD 0x08 #define IOPR_CTSCOS 0x10 #define IOPR_DTRCOS 0x20 #define IOPR_RTSCOS 0x40 #define IOPR_DCDCOS 0x80 /*****************************************************************************/ /* * IO port configuration register. */ #define IOPCR_SETCTS 0x00 #define IOPCR_SETDTR 0x04 #define IOPCR_SETRTS 0x10 #define IOPCR_SETDCD 0x00 #define IOPCR_SETSIGS (IOPCR_SETRTS | IOPCR_SETRTS | IOPCR_SETDTR | IOPCR_SETDCD) /*****************************************************************************/ /* * General purpose output select register. */ #define GPORS_TXC1XA 0x08 #define GPORS_TXC16XA 0x09 #define GPORS_RXC16XA 0x0a #define GPORS_TXC16XB 0x0b #define GPORS_GPOR3 0x0c #define GPORS_GPOR2 0x0d #define GPORS_GPOR1 0x0e #define GPORS_GPOR0 0x0f /*****************************************************************************/ /* * General purpose output register. */ #define GPOR_0 0x01 #define GPOR_1 0x02 #define GPOR_2 0x04 #define GPOR_3 0x08 /*****************************************************************************/ /* * General purpose output clock register. */ #define GPORC_0NONE 0x00 #define GPORC_0GIN0 0x01 #define GPORC_0GIN1 0x02 #define GPORC_0IO3A 0x02 #define GPORC_1NONE 0x00 #define GPORC_1GIN0 0x04 #define GPORC_1GIN1 0x08 #define GPORC_1IO3C 0x0c #define GPORC_2NONE 0x00 #define GPORC_2GIN0 0x10 #define GPORC_2GIN1 0x20 #define GPORC_2IO3E 0x20 #define GPORC_3NONE 0x00 #define GPORC_3GIN0 0x40 #define GPORC_3GIN1 0x80 #define GPORC_3IO3G 0xc0 /*****************************************************************************/ /* * General purpose output data register. */ #define GPOD_0MASK 0x03 #define GPOD_0SET1 0x00 #define GPOD_0SET0 0x01 #define GPOD_0SETR0 0x02 #define GPOD_0SETIO3B 0x03 #define GPOD_1MASK 0x0c #define GPOD_1SET1 0x00 #define GPOD_1SET0 0x04 #define GPOD_1SETR0 0x08 #define GPOD_1SETIO3D 0x0c #define GPOD_2MASK 0x30 #define GPOD_2SET1 0x00 #define GPOD_2SET0 0x10 #define GPOD_2SETR0 0x20 #define GPOD_2SETIO3F 0x30 #define GPOD_3MASK 0xc0 #define GPOD_3SET1 0x00 #define GPOD_3SET0 0x40 #define GPOD_3SETR0 0x80 #define GPOD_3SETIO3H 0xc0 /*****************************************************************************/ #endif