FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/z8530.h

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2003 Marcel Moolenaar
      * 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     * IN NO EVENT SHALL THE AUTHOR 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.
     *
     * $FreeBSD$
     */
    
    #ifndef _DEV_IC_Z8530_H_
    #define _DEV_IC_Z8530_H_
    
    /*
     * legacy:      SUN compatible
     * escc:        Macintosh
     *                      legacy          escc
     * Channel B control:   0               0
     * Channel B data:      1               1
     * Channel A control:   2               16
     * Channel A data:      3               17
     */
    
    #define REG_CTRL        0
    #define REG_DATA        1
    
    /* Write registers. */
    #define WR_CR           0       /* Command Register. */
    #define WR_IDT          1       /* Interrupt and Data Transfer Mode. */
    #define WR_IV           2       /* Interrupt Vector (shared). */
    #define WR_RPC          3       /* Receive Parameters and Control. */
    #define WR_MPM          4       /* Miscellaneous Parameters and Modes. */
    #define WR_TPC          5       /* Transmit Parameters and Control. */
    #define WR_SCAF         6       /* Sync Character or (SDLC) Address Field. */
    #define WR_SCF          7       /* Sync Character or (SDCL) Flag. */
    #define WR_EFC          7       /* Extended Feature and FIFO Control. */
    #define WR_TB           8       /* Transmit Buffer. */
    #define WR_MIC          9       /* Master Interrupt Control (shared). */
    #define WR_MCB1         10      /* Miscellaneous Control Bits (part 1 :-). */
    #define WR_CMC          11      /* Clock Mode Control. */
    #define WR_TCL          12      /* BRG Time Constant Low. */
    #define WR_TCH          13      /* BRG Time Constant High. */
    #define WR_MCB2         14      /* Miscellaneous Control Bits (part 2 :-). */
    #define WR_IC           15      /* Interrupt Control. */
    
    /* Read registers. */
    #define RR_BES          0       /* Buffer and External Status. */
    #define RR_SRC          1       /* Special Receive Condition. */
    #define RR_IV           2       /* Interrupt Vector. */
    #define RR_IP           3       /* Interrupt Pending (ch A only). */
    #define RR_MPM          4       /* Miscellaneous Parameters and Modes. */
    #define RR_TPC          5       /* Transmit Parameters and Control. */
    #define RR_BCL          6       /* Byte Count Low. */
    #define RR_BCH          7       /* Byte Count High. */
    #define RR_RB           8       /* Receive Buffer. */
    #define RR_RPC          9       /* Receive Parameters and Control. */
    #define RR_MSB          10      /* Miscellaneous Status Bits. */
    #define RR_MCB1         11      /* Miscellaneous Control Bits (part 1). */
    #define RR_TCL          12      /* BRG Time Constant Low. */
    #define RR_TCH          13      /* BRG Time Constant High. */
    #define RR_EFC          14      /* Extended Feature and FIFO Control. */
    #define RR_IC           15      /* Interrupt Control. */
    
    /* Buffer and External Status (RR0). */
    #define BES_BRK         0x80    /* Break (Abort). */
    #define BES_TXU         0x40    /* Tx Underrun (EOM). */
    #define BES_CTS         0x20    /* CTS. */
    #define BES_SYNC        0x10    /* Sync. */
    #define BES_DCD         0x08    /* DCD. */
    #define BES_TXE         0x04    /* Tx Empty. */
    #define BES_ZC          0x02    /* Zero Count. */
    #define BES_RXA         0x01    /* Rx Available. */
    
    /* Clock Mode Control (WR11). */
    #define CMC_XTAL        0x80    /* -RTxC connects to quartz crystal. */
    #define CMC_RC_DPLL     0x60    /* Rx Clock from DPLL. */
    #define CMC_RC_BRG      0x40    /* Rx Clock from BRG. */
    #define CMC_RC_TRXC     0x20    /* Rx Clock from -TRxC. */
    #define CMC_RC_RTXC     0x00    /* Rx Clock from -RTxC. */
   #define CMC_TC_DPLL     0x18    /* Tx Clock from DPLL */
   #define CMC_TC_BRG      0x10    /* Tx Clock from BRG */
   #define CMC_TC_TRXC     0x08    /* Tx Clock from -TRxC. */
   #define CMC_TC_RTXC     0x00    /* Tx Clock from -RTxC. */
   #define CMC_TRXC_OUT    0x04    /* -TRxC is output. */
   #define CMC_TRXC_DPLL   0x03    /* -TRxC from DPLL */
   #define CMC_TRXC_BRG    0x02    /* -TRxC from BRG */
   #define CMC_TRXC_XMIT   0x01    /* -TRxC from Tx clock. */
   #define CMC_TRXC_XTAL   0x00    /* -TRxC from XTAL. */
   
   /* Command Register (WR0). */
   #define CR_RSTTXU       0xc0    /* Reset Tx. Underrun/EOM. */
   #define CR_RSTTXCRC     0x80    /* Reset Tx. CRC. */
   #define CR_RSTRXCRC     0x40    /* Reset Rx. CRC. */
   #define CR_RSTIUS       0x38    /* Reset Int. Under Service. */
   #define CR_RSTERR       0x30    /* Error Reset. */
   #define CR_RSTTXI       0x28    /* Reset Tx. Int. */
   #define CR_ENARXI       0x20    /* Enable Rx. Int. */
   #define CR_ABORT        0x18    /* Send Abort. */
   #define CR_RSTXSI       0x10    /* Reset Ext/Status Int. */
   
   /* Extended Feature and FIFO Control (WR7 prime). */
   #define EFC_ERE         0x40    /* Extended Read Enable. */
   #define EFC_FE          0x20    /* Transmit FIFO Empty. */
   #define EFC_RQT         0x10    /* Request Timing. */
   #define EFC_FHF         0x08    /* Receive FIFO Half Full. */
   #define EFC_RTS         0x04    /* Auto RTS Deactivation. */
   #define EFC_EOM         0x02    /* Auto EOM Reset. */
   #define EFC_FLAG        0x01    /* Auto SDLC Flag on Tx. */
   
   /* Interrupt Control (WR15). */
   #define IC_BRK          0x80    /* Break (Abort) IE. */
   #define IC_TXU          0x40    /* Tx Underrun IE. */
   #define IC_CTS          0x20    /* CTS IE. */
   #define IC_SYNC         0x10    /* Sync IE. */
   #define IC_DCD          0x08    /* DCD IE. */
   #define IC_FIFO         0x04    /* SDLC FIFO Enable. */
   #define IC_ZC           0x02    /* Zero Count IE. */
   #define IC_EF           0x01    /* Extended Feature Enable. */
   
   /* Interrupt and Data Transfer Mode (WR1). */
   #define IDT_WRE         0x80    /* Wait/DMA Request Enable. */
   #define IDT_REQ         0x40    /* DMA Request. */
   #define IDT_WRR         0x20    /* Wait/DMA Reuest on Receive. */
   #define IDT_RISC        0x18    /* Rx Int. on Special Condition Only. */
   #define IDT_RIA         0x10    /* Rx Int. on All Characters. */
   #define IDT_RIF         0x08    /* Rx Int. on First Character. */
   #define IDT_PSC         0x04    /* Parity is Special Condition. */
   #define IDT_TIE         0x02    /* Tx Int. Enable. */
   #define IDT_XIE         0x01    /* Ext. Int. Enable. */
   
   /* Interrupt Pending (RR3). */
   #define IP_RIA          0x20    /* Rx. Int. ch. A. */
   #define IP_TIA          0x10    /* Tx. Int. ch. A. */ 
   #define IP_SIA          0x08    /* Ext/Status Int. ch. A. */
   #define IP_RIB          0x04    /* Rx. Int. ch. B. */
   #define IP_TIB          0x02    /* Tx. Int. ch. B. */
   #define IP_SIB          0x01    /* Ext/Status Int. ch. B. */
   
   /* Interrupt Vector Status Low (RR2). */
   #define IV_SCA          0x0e    /* Special Condition ch. A. */
   #define IV_RAA          0x0c    /* Receive Available ch. A. */
   #define IV_XSA          0x0a    /* External/Status Change ch. A. */
   #define IV_TEA          0x08    /* Transmitter Empty ch. A. */
   #define IV_SCB          0x06    /* Special Condition ch. B. */
   #define IV_RAB          0x04    /* Receive Available ch. B. */
   #define IV_XSB          0x02    /* External/Status Change ch. B. */
   #define IV_TEB          0x00    /* Transmitter Empty ch. B. */
   
   /* Miscellaneous Control Bits part 1 (WR10). */
   #define MCB1_CRC1       0x80    /* CRC presets to 1. */
   #define MCB1_FM0        0x60    /* FM0 Encoding. */
   #define MCB1_FM1        0x40    /* FM1 Encoding. */
   #define MCB1_NRZI       0x20    /* NRZI Encoding. */
   #define MCB1_NRZ        0x00    /* NRZ Encoding. */
   #define MCB1_AOP        0x10    /* Active On Poll. */
   #define MCB1_MI         0x08    /* Mark Idle. */
   #define MCB1_AOU        0x04    /* Abort On Underrun. */
   #define MCB1_LM         0x02    /* Loop Mode. */
   #define MCB1_SIX        0x01    /* 6 or 12 bit SYNC. */
   
   /* Miscellaneous Control Bits part 2 (WR14). */
   #define MCB2_NRZI       0xe0    /* DPLL - NRZI mode. */
   #define MCB2_FM         0xc0    /* DPLL - FM mode. */
   #define MCB2_RTXC       0xa0    /* DPLL - Clock from -RTxC. */
   #define MCB2_BRG        0x80    /* DPLL - Clock from BRG. */
   #define MCB2_OFF        0x60    /* DPLL - Disable. */
   #define MCB2_RMC        0x40    /* DPLL - Reset Missing Clock. */
   #define MCB2_ESM        0x20    /* DPLL - Enter Search Mode. */
   #define MCB2_LL         0x10    /* Local Loopback. */
   #define MCB2_AE         0x08    /* Auto Echo. */
   #define MCB2_REQ        0x04    /* Request Function. */
   #define MCB2_PCLK       0x02    /* BRG source is PCLK. */
   #define MCB2_BRGE       0x01    /* BRG enable. */
   
   /* Master Interrupt Control (WR9). */
   #define MIC_FHR         0xc0    /* Force Hardware Reset. */
   #define MIC_CRA         0x80    /* Channel Reset A. */
   #define MIC_CRB         0x40    /* Channel Reset B. */
   #define MIC_SIE         0x20    /* Software INTACK Enable. */
   #define MIC_SH          0x10    /* Status High. */
   #define MIC_MIE         0x08    /* Master Interrupt Enable. */
   #define MIC_DLC         0x04    /* Disable Lower Chain. */
   #define MIC_NV          0x02    /* No Vector. */
   #define MIC_VIS         0x01    /* Vector Includes Status. */
   
   /* Transmit/Receive Miscellaneous Parameters and Modes (WR4). */
   #define MPM_CM64        0xc0    /* X64 Clock Mode. */
   #define MPM_CM32        0x80    /* X32 Clock Mode. */
   #define MPM_CM16        0x40    /* X16 Clock Mode. */
   #define MPM_CM1         0x00    /* X1 Clock Mode. */
   #define MPM_EXT         0x30    /* External Sync Mode. */
   #define MPM_SDLC        0x20    /* SDLC mode. */
   #define MPM_BI          0x10    /* 16-bit Sync (bi-sync). */
   #define MPM_MONO        0x00    /* 8-bit Sync (mono-sync). */
   #define MPM_SB2         0x0c    /* Async mode: 2 stopbits. */
   #define MPM_SB15        0x08    /* Async mode: 1.5 stopbits. */
   #define MPM_SB1         0x04    /* Async mode: 1 stopbit. */
   #define MPM_SYNC        0x00    /* Sync Mode Enable. */
   #define MPM_EVEN        0x02    /* Async mode: even parity. */
   #define MPM_PE          0x01    /* Async mode: parity enable. */
   
   /* Receive Parameters and Control (WR3). */
   #define RPC_RB8         0xc0    /* 8 databits. */
   #define RPC_RB6         0x80    /* 6 databits. */
   #define RPC_RB7         0x40    /* 7 databits. */
   #define RPC_RB5         0x00    /* 5 databits. */
   #define RPC_AE          0x20    /* Auto Enable. */
   #define RPC_EHM         0x10    /* Enter Hunt Mode. */
   #define RPC_CRC         0x08    /* CRC Enable. */
   #define RPC_ASM         0x04    /* Address Search Mode. */
   #define RPC_LI          0x02    /* SYNC Character Load Inhibit */
   #define RPC_RXE         0x01    /* Receiver Enable */
   
   /* Special Receive Condition (RR1). */
   #define SRC_EOF         0x80    /* End Of Frame. */
   #define SRC_FE          0x40    /* Framing Error. */
   #define SRC_OVR         0x20    /* Rx. Overrun. */
   #define SRC_PE          0x10    /* Parity Error. */
   #define SRC_RC0         0x08    /* Residue Code 0. */
   #define SRC_RC1         0x04    /* Residue Code 1. */
   #define SRC_RC2         0x02    /* Residue Code 2. */
   #define SRC_AS          0x01    /* All Sent. */
   
   /* Transmit Parameter and Control (WR5). */
   #define TPC_DTR         0x80    /* DTR. */
   #define TPC_TB8         0x60    /* 8 databits. */
   #define TPC_TB6         0x40    /* 6 databits. */
   #define TPC_TB7         0x20    /* 7 databits. */
   #define TPC_TB5         0x00    /* 5 or fewer databits. */
   #define TPC_BRK         0x10    /* Send break. */
   #define TPC_TXE         0x08    /* Transmitter Enable. */
   #define TPC_CRC16       0x04    /* CRC16. */
   #define TPC_RTS         0x02    /* RTS. */
   #define TPC_CRC         0x01    /* CRC Enable. */
   
   #endif /* _DEV_IC_Z8530_H_ */

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