/*- * SPDX-License-Identifier: BSD-2-Clause * * 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. */ #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_ */
