1*b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2ab4382d2SGreg Kroah-Hartman /* 3ab4382d2SGreg Kroah-Hartman * dz.h: Serial port driver for DECstations equipped 4ab4382d2SGreg Kroah-Hartman * with the DZ chipset. 5ab4382d2SGreg Kroah-Hartman * 6ab4382d2SGreg Kroah-Hartman * Copyright (C) 1998 Olivier A. D. Lebaillif 7ab4382d2SGreg Kroah-Hartman * 8ab4382d2SGreg Kroah-Hartman * Email: olivier.lebaillif@ifrsys.com 9ab4382d2SGreg Kroah-Hartman * 10ab4382d2SGreg Kroah-Hartman * Copyright (C) 2004, 2006 Maciej W. Rozycki 11ab4382d2SGreg Kroah-Hartman */ 12ab4382d2SGreg Kroah-Hartman #ifndef DZ_SERIAL_H 13ab4382d2SGreg Kroah-Hartman #define DZ_SERIAL_H 14ab4382d2SGreg Kroah-Hartman 15ab4382d2SGreg Kroah-Hartman /* 16ab4382d2SGreg Kroah-Hartman * Definitions for the Control and Status Register. 17ab4382d2SGreg Kroah-Hartman */ 18ab4382d2SGreg Kroah-Hartman #define DZ_TRDY 0x8000 /* Transmitter empty */ 19ab4382d2SGreg Kroah-Hartman #define DZ_TIE 0x4000 /* Transmitter Interrupt Enbl */ 20ab4382d2SGreg Kroah-Hartman #define DZ_TLINE 0x0300 /* Transmitter Line Number */ 21ab4382d2SGreg Kroah-Hartman #define DZ_RDONE 0x0080 /* Receiver data ready */ 22ab4382d2SGreg Kroah-Hartman #define DZ_RIE 0x0040 /* Receive Interrupt Enable */ 23ab4382d2SGreg Kroah-Hartman #define DZ_MSE 0x0020 /* Master Scan Enable */ 24ab4382d2SGreg Kroah-Hartman #define DZ_CLR 0x0010 /* Master reset */ 25ab4382d2SGreg Kroah-Hartman #define DZ_MAINT 0x0008 /* Loop Back Mode */ 26ab4382d2SGreg Kroah-Hartman 27ab4382d2SGreg Kroah-Hartman /* 28ab4382d2SGreg Kroah-Hartman * Definitions for the Receiver Buffer Register. 29ab4382d2SGreg Kroah-Hartman */ 30ab4382d2SGreg Kroah-Hartman #define DZ_RBUF_MASK 0x00FF /* Data Mask */ 31ab4382d2SGreg Kroah-Hartman #define DZ_LINE_MASK 0x0300 /* Line Mask */ 32ab4382d2SGreg Kroah-Hartman #define DZ_DVAL 0x8000 /* Valid Data indicator */ 33ab4382d2SGreg Kroah-Hartman #define DZ_OERR 0x4000 /* Overrun error indicator */ 34ab4382d2SGreg Kroah-Hartman #define DZ_FERR 0x2000 /* Frame error indicator */ 35ab4382d2SGreg Kroah-Hartman #define DZ_PERR 0x1000 /* Parity error indicator */ 36ab4382d2SGreg Kroah-Hartman 37ab4382d2SGreg Kroah-Hartman #define DZ_BREAK 0x0800 /* BREAK event software flag */ 38ab4382d2SGreg Kroah-Hartman 39ab4382d2SGreg Kroah-Hartman #define LINE(x) ((x & DZ_LINE_MASK) >> 8) /* Get the line number 40ab4382d2SGreg Kroah-Hartman from the input buffer */ 41ab4382d2SGreg Kroah-Hartman #define UCHAR(x) ((unsigned char)(x & DZ_RBUF_MASK)) 42ab4382d2SGreg Kroah-Hartman 43ab4382d2SGreg Kroah-Hartman /* 44ab4382d2SGreg Kroah-Hartman * Definitions for the Transmit Control Register. 45ab4382d2SGreg Kroah-Hartman */ 46ab4382d2SGreg Kroah-Hartman #define DZ_LINE_KEYBOARD 0x0001 47ab4382d2SGreg Kroah-Hartman #define DZ_LINE_MOUSE 0x0002 48ab4382d2SGreg Kroah-Hartman #define DZ_LINE_MODEM 0x0004 49ab4382d2SGreg Kroah-Hartman #define DZ_LINE_PRINTER 0x0008 50ab4382d2SGreg Kroah-Hartman 51ab4382d2SGreg Kroah-Hartman #define DZ_MODEM_RTS 0x0800 /* RTS for the modem line (2) */ 52ab4382d2SGreg Kroah-Hartman #define DZ_MODEM_DTR 0x0400 /* DTR for the modem line (2) */ 53ab4382d2SGreg Kroah-Hartman #define DZ_PRINT_RTS 0x0200 /* RTS for the prntr line (3) */ 54ab4382d2SGreg Kroah-Hartman #define DZ_PRINT_DTR 0x0100 /* DTR for the prntr line (3) */ 55ab4382d2SGreg Kroah-Hartman #define DZ_LNENB 0x000f /* Transmitter Line Enable */ 56ab4382d2SGreg Kroah-Hartman 57ab4382d2SGreg Kroah-Hartman /* 58ab4382d2SGreg Kroah-Hartman * Definitions for the Modem Status Register. 59ab4382d2SGreg Kroah-Hartman */ 60ab4382d2SGreg Kroah-Hartman #define DZ_MODEM_RI 0x0800 /* RI for the modem line (2) */ 61ab4382d2SGreg Kroah-Hartman #define DZ_MODEM_CD 0x0400 /* CD for the modem line (2) */ 62ab4382d2SGreg Kroah-Hartman #define DZ_MODEM_DSR 0x0200 /* DSR for the modem line (2) */ 63ab4382d2SGreg Kroah-Hartman #define DZ_MODEM_CTS 0x0100 /* CTS for the modem line (2) */ 64ab4382d2SGreg Kroah-Hartman #define DZ_PRINT_RI 0x0008 /* RI for the printer line (3) */ 65ab4382d2SGreg Kroah-Hartman #define DZ_PRINT_CD 0x0004 /* CD for the printer line (3) */ 66ab4382d2SGreg Kroah-Hartman #define DZ_PRINT_DSR 0x0002 /* DSR for the prntr line (3) */ 67ab4382d2SGreg Kroah-Hartman #define DZ_PRINT_CTS 0x0001 /* CTS for the prntr line (3) */ 68ab4382d2SGreg Kroah-Hartman 69ab4382d2SGreg Kroah-Hartman /* 70ab4382d2SGreg Kroah-Hartman * Definitions for the Transmit Data Register. 71ab4382d2SGreg Kroah-Hartman */ 72ab4382d2SGreg Kroah-Hartman #define DZ_BRK0 0x0100 /* Break assertion for line 0 */ 73ab4382d2SGreg Kroah-Hartman #define DZ_BRK1 0x0200 /* Break assertion for line 1 */ 74ab4382d2SGreg Kroah-Hartman #define DZ_BRK2 0x0400 /* Break assertion for line 2 */ 75ab4382d2SGreg Kroah-Hartman #define DZ_BRK3 0x0800 /* Break assertion for line 3 */ 76ab4382d2SGreg Kroah-Hartman 77ab4382d2SGreg Kroah-Hartman /* 78ab4382d2SGreg Kroah-Hartman * Definitions for the Line Parameter Register. 79ab4382d2SGreg Kroah-Hartman */ 80ab4382d2SGreg Kroah-Hartman #define DZ_KEYBOARD 0x0000 /* line 0 = keyboard */ 81ab4382d2SGreg Kroah-Hartman #define DZ_MOUSE 0x0001 /* line 1 = mouse */ 82ab4382d2SGreg Kroah-Hartman #define DZ_MODEM 0x0002 /* line 2 = modem */ 83ab4382d2SGreg Kroah-Hartman #define DZ_PRINTER 0x0003 /* line 3 = printer */ 84ab4382d2SGreg Kroah-Hartman 85ab4382d2SGreg Kroah-Hartman #define DZ_CSIZE 0x0018 /* Number of bits per byte (mask) */ 86ab4382d2SGreg Kroah-Hartman #define DZ_CS5 0x0000 /* 5 bits per byte */ 87ab4382d2SGreg Kroah-Hartman #define DZ_CS6 0x0008 /* 6 bits per byte */ 88ab4382d2SGreg Kroah-Hartman #define DZ_CS7 0x0010 /* 7 bits per byte */ 89ab4382d2SGreg Kroah-Hartman #define DZ_CS8 0x0018 /* 8 bits per byte */ 90ab4382d2SGreg Kroah-Hartman 91ab4382d2SGreg Kroah-Hartman #define DZ_CSTOPB 0x0020 /* 2 stop bits instead of one */ 92ab4382d2SGreg Kroah-Hartman 93ab4382d2SGreg Kroah-Hartman #define DZ_PARENB 0x0040 /* Parity enable */ 94ab4382d2SGreg Kroah-Hartman #define DZ_PARODD 0x0080 /* Odd parity instead of even */ 95ab4382d2SGreg Kroah-Hartman 96ab4382d2SGreg Kroah-Hartman #define DZ_CBAUD 0x0E00 /* Baud Rate (mask) */ 97ab4382d2SGreg Kroah-Hartman #define DZ_B50 0x0000 98ab4382d2SGreg Kroah-Hartman #define DZ_B75 0x0100 99ab4382d2SGreg Kroah-Hartman #define DZ_B110 0x0200 100ab4382d2SGreg Kroah-Hartman #define DZ_B134 0x0300 101ab4382d2SGreg Kroah-Hartman #define DZ_B150 0x0400 102ab4382d2SGreg Kroah-Hartman #define DZ_B300 0x0500 103ab4382d2SGreg Kroah-Hartman #define DZ_B600 0x0600 104ab4382d2SGreg Kroah-Hartman #define DZ_B1200 0x0700 105ab4382d2SGreg Kroah-Hartman #define DZ_B1800 0x0800 106ab4382d2SGreg Kroah-Hartman #define DZ_B2000 0x0900 107ab4382d2SGreg Kroah-Hartman #define DZ_B2400 0x0A00 108ab4382d2SGreg Kroah-Hartman #define DZ_B3600 0x0B00 109ab4382d2SGreg Kroah-Hartman #define DZ_B4800 0x0C00 110ab4382d2SGreg Kroah-Hartman #define DZ_B7200 0x0D00 111ab4382d2SGreg Kroah-Hartman #define DZ_B9600 0x0E00 112ab4382d2SGreg Kroah-Hartman 113ab4382d2SGreg Kroah-Hartman #define DZ_RXENAB 0x1000 /* Receiver Enable */ 114ab4382d2SGreg Kroah-Hartman 115ab4382d2SGreg Kroah-Hartman /* 116ab4382d2SGreg Kroah-Hartman * Addresses for the DZ registers 117ab4382d2SGreg Kroah-Hartman */ 118ab4382d2SGreg Kroah-Hartman #define DZ_CSR 0x00 /* Control and Status Register */ 119ab4382d2SGreg Kroah-Hartman #define DZ_RBUF 0x08 /* Receive Buffer */ 120ab4382d2SGreg Kroah-Hartman #define DZ_LPR 0x08 /* Line Parameters Register */ 121ab4382d2SGreg Kroah-Hartman #define DZ_TCR 0x10 /* Transmitter Control Register */ 122ab4382d2SGreg Kroah-Hartman #define DZ_MSR 0x18 /* Modem Status Register */ 123ab4382d2SGreg Kroah-Hartman #define DZ_TDR 0x18 /* Transmit Data Register */ 124ab4382d2SGreg Kroah-Hartman 125ab4382d2SGreg Kroah-Hartman #define DZ_NB_PORT 4 126ab4382d2SGreg Kroah-Hartman 127ab4382d2SGreg Kroah-Hartman #define DZ_XMIT_SIZE 4096 /* buffer size */ 128ab4382d2SGreg Kroah-Hartman #define DZ_WAKEUP_CHARS DZ_XMIT_SIZE/4 129ab4382d2SGreg Kroah-Hartman 130ab4382d2SGreg Kroah-Hartman #endif /* DZ_SERIAL_H */ 131