cregit-Linux how code gets into the kernel

Release 4.7 drivers/tty/serial/dz.h

/*
 * dz.h: Serial port driver for DECstations equipped
 *       with the DZ chipset.
 *
 * Copyright (C) 1998 Olivier A. D. Lebaillif 
 *             
 * Email: olivier.lebaillif@ifrsys.com
 *
 * Copyright (C) 2004, 2006  Maciej W. Rozycki
 */
#ifndef DZ_SERIAL_H

#define DZ_SERIAL_H

/*
 * Definitions for the Control and Status Register.
 */

#define DZ_TRDY        0x8000                 
/* Transmitter empty */

#define DZ_TIE         0x4000                 
/* Transmitter Interrupt Enbl */

#define DZ_TLINE       0x0300                 
/* Transmitter Line Number */

#define DZ_RDONE       0x0080                 
/* Receiver data ready */

#define DZ_RIE         0x0040                 
/* Receive Interrupt Enable */

#define DZ_MSE         0x0020                 
/* Master Scan Enable */

#define DZ_CLR         0x0010                 
/* Master reset */

#define DZ_MAINT       0x0008                 
/* Loop Back Mode */

/*
 * Definitions for the Receiver Buffer Register.
 */

#define DZ_RBUF_MASK   0x00FF                 
/* Data Mask */

#define DZ_LINE_MASK   0x0300                 
/* Line Mask */

#define DZ_DVAL        0x8000                 
/* Valid Data indicator */

#define DZ_OERR        0x4000                 
/* Overrun error indicator */

#define DZ_FERR        0x2000                 
/* Frame error indicator */

#define DZ_PERR        0x1000                 
/* Parity error indicator */


#define DZ_BREAK       0x0800                 
/* BREAK event software flag */


#define LINE(x) ((x & DZ_LINE_MASK) >> 8)     
/* Get the line number
                                                 from the input buffer */

#define UCHAR(x) ((unsigned char)(x & DZ_RBUF_MASK))

/*
 * Definitions for the Transmit Control Register.
 */

#define DZ_LINE_KEYBOARD 0x0001

#define DZ_LINE_MOUSE    0x0002

#define DZ_LINE_MODEM    0x0004

#define DZ_LINE_PRINTER  0x0008


#define DZ_MODEM_RTS     0x0800               
/* RTS for the modem line (2) */

#define DZ_MODEM_DTR     0x0400               
/* DTR for the modem line (2) */

#define DZ_PRINT_RTS     0x0200               
/* RTS for the prntr line (3) */

#define DZ_PRINT_DTR     0x0100               
/* DTR for the prntr line (3) */

#define DZ_LNENB         0x000f               
/* Transmitter Line Enable */

/*
 * Definitions for the Modem Status Register.
 */

#define DZ_MODEM_RI      0x0800               
/* RI for the modem line (2) */

#define DZ_MODEM_CD      0x0400               
/* CD for the modem line (2) */

#define DZ_MODEM_DSR     0x0200               
/* DSR for the modem line (2) */

#define DZ_MODEM_CTS     0x0100               
/* CTS for the modem line (2) */

#define DZ_PRINT_RI      0x0008               
/* RI for the printer line (3) */

#define DZ_PRINT_CD      0x0004               
/* CD for the printer line (3) */

#define DZ_PRINT_DSR     0x0002               
/* DSR for the prntr line (3) */

#define DZ_PRINT_CTS     0x0001               
/* CTS for the prntr line (3) */

/*
 * Definitions for the Transmit Data Register.
 */

#define DZ_BRK0          0x0100               
/* Break assertion for line 0 */

#define DZ_BRK1          0x0200               
/* Break assertion for line 1 */

#define DZ_BRK2          0x0400               
/* Break assertion for line 2 */

#define DZ_BRK3          0x0800               
/* Break assertion for line 3 */

/*
 * Definitions for the Line Parameter Register.
 */

#define DZ_KEYBOARD      0x0000               
/* line 0 = keyboard */

#define DZ_MOUSE         0x0001               
/* line 1 = mouse */

#define DZ_MODEM         0x0002               
/* line 2 = modem */

#define DZ_PRINTER       0x0003               
/* line 3 = printer */


#define DZ_CSIZE         0x0018               
/* Number of bits per byte (mask) */

#define DZ_CS5           0x0000               
/* 5 bits per byte */

#define DZ_CS6           0x0008               
/* 6 bits per byte */

#define DZ_CS7           0x0010               
/* 7 bits per byte */

#define DZ_CS8           0x0018               
/* 8 bits per byte */


#define DZ_CSTOPB        0x0020               
/* 2 stop bits instead of one */ 


#define DZ_PARENB        0x0040               
/* Parity enable */

#define DZ_PARODD        0x0080               
/* Odd parity instead of even */


#define DZ_CBAUD         0x0E00               
/* Baud Rate (mask) */

#define DZ_B50           0x0000

#define DZ_B75           0x0100

#define DZ_B110          0x0200

#define DZ_B134          0x0300

#define DZ_B150          0x0400

#define DZ_B300          0x0500

#define DZ_B600          0x0600

#define DZ_B1200         0x0700 

#define DZ_B1800         0x0800

#define DZ_B2000         0x0900

#define DZ_B2400         0x0A00

#define DZ_B3600         0x0B00

#define DZ_B4800         0x0C00

#define DZ_B7200         0x0D00

#define DZ_B9600         0x0E00


#define DZ_RXENAB        0x1000               
/* Receiver Enable */

/*
 * Addresses for the DZ registers
 */

#define DZ_CSR       0x00            
/* Control and Status Register */

#define DZ_RBUF      0x08            
/* Receive Buffer */

#define DZ_LPR       0x08            
/* Line Parameters Register */

#define DZ_TCR       0x10            
/* Transmitter Control Register */

#define DZ_MSR       0x18            
/* Modem Status Register */

#define DZ_TDR       0x18            
/* Transmit Data Register */


#define DZ_NB_PORT 4


#define DZ_XMIT_SIZE   4096                 
/* buffer size */

#define DZ_WAKEUP_CHARS   DZ_XMIT_SIZE/4

#endif /* DZ_SERIAL_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
andrew mortonandrew morton30580.05%125.00%
maciej w. rozyckimaciej w. rozycki7619.95%375.00%
Total381100.00%4100.00%
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