16f52b16cSGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2607ca46eSDavid Howells /* 3607ca46eSDavid Howells * usr/include/linux/lp.h c.1991-1992 James Wiegand 4607ca46eSDavid Howells * many modifications copyright (C) 1992 Michael K. Johnson 5607ca46eSDavid Howells * Interrupt support added 1993 Nigel Gamble 6607ca46eSDavid Howells * Removed 8255 status defines from inside __KERNEL__ Marcelo Tosatti 7607ca46eSDavid Howells */ 8607ca46eSDavid Howells #ifndef _UAPI_LINUX_LP_H 9607ca46eSDavid Howells #define _UAPI_LINUX_LP_H 10607ca46eSDavid Howells 11*9a450484SArnd Bergmann #include <linux/types.h> 12*9a450484SArnd Bergmann #include <linux/ioctl.h> 13607ca46eSDavid Howells 14607ca46eSDavid Howells /* 15607ca46eSDavid Howells * Per POSIX guidelines, this module reserves the LP and lp prefixes 16607ca46eSDavid Howells * These are the lp_table[minor].flags flags... 17607ca46eSDavid Howells */ 18607ca46eSDavid Howells #define LP_EXIST 0x0001 19607ca46eSDavid Howells #define LP_SELEC 0x0002 20607ca46eSDavid Howells #define LP_BUSY 0x0004 21607ca46eSDavid Howells #define LP_BUSY_BIT_POS 2 22607ca46eSDavid Howells #define LP_OFFL 0x0008 23607ca46eSDavid Howells #define LP_NOPA 0x0010 24607ca46eSDavid Howells #define LP_ERR 0x0020 25607ca46eSDavid Howells #define LP_ABORT 0x0040 26607ca46eSDavid Howells #define LP_CAREFUL 0x0080 /* obsoleted -arca */ 27607ca46eSDavid Howells #define LP_ABORTOPEN 0x0100 28607ca46eSDavid Howells 29607ca46eSDavid Howells #define LP_TRUST_IRQ_ 0x0200 /* obsolete */ 30607ca46eSDavid Howells #define LP_NO_REVERSE 0x0400 /* No reverse mode available. */ 31607ca46eSDavid Howells #define LP_DATA_AVAIL 0x0800 /* Data is available. */ 32607ca46eSDavid Howells 33607ca46eSDavid Howells /* 34607ca46eSDavid Howells * bit defines for 8255 status port 35607ca46eSDavid Howells * base + 1 36607ca46eSDavid Howells * accessed with LP_S(minor), which gets the byte... 37607ca46eSDavid Howells */ 38607ca46eSDavid Howells #define LP_PBUSY 0x80 /* inverted input, active high */ 39607ca46eSDavid Howells #define LP_PACK 0x40 /* unchanged input, active low */ 40607ca46eSDavid Howells #define LP_POUTPA 0x20 /* unchanged input, active high */ 41607ca46eSDavid Howells #define LP_PSELECD 0x10 /* unchanged input, active high */ 42607ca46eSDavid Howells #define LP_PERRORP 0x08 /* unchanged input, active low */ 43607ca46eSDavid Howells 44607ca46eSDavid Howells /* timeout for each character. This is relative to bus cycles -- it 45607ca46eSDavid Howells * is the count in a busy loop. THIS IS THE VALUE TO CHANGE if you 46607ca46eSDavid Howells * have extremely slow printing, or if the machine seems to slow down 47607ca46eSDavid Howells * a lot when you print. If you have slow printing, increase this 48607ca46eSDavid Howells * number and recompile, and if your system gets bogged down, decrease 49607ca46eSDavid Howells * this number. This can be changed with the tunelp(8) command as well. 50607ca46eSDavid Howells */ 51607ca46eSDavid Howells 52607ca46eSDavid Howells #define LP_INIT_CHAR 1000 53607ca46eSDavid Howells 54607ca46eSDavid Howells /* The parallel port specs apparently say that there needs to be 55607ca46eSDavid Howells * a .5usec wait before and after the strobe. 56607ca46eSDavid Howells */ 57607ca46eSDavid Howells 58607ca46eSDavid Howells #define LP_INIT_WAIT 1 59607ca46eSDavid Howells 60607ca46eSDavid Howells /* This is the amount of time that the driver waits for the printer to 61607ca46eSDavid Howells * catch up when the printer's buffer appears to be filled. If you 62607ca46eSDavid Howells * want to tune this and have a fast printer (i.e. HPIIIP), decrease 63607ca46eSDavid Howells * this number, and if you have a slow printer, increase this number. 64607ca46eSDavid Howells * This is in hundredths of a second, the default 2 being .05 second. 65607ca46eSDavid Howells * Or use the tunelp(8) command, which is especially nice if you want 66607ca46eSDavid Howells * change back and forth between character and graphics printing, which 67607ca46eSDavid Howells * are wildly different... 68607ca46eSDavid Howells */ 69607ca46eSDavid Howells 70607ca46eSDavid Howells #define LP_INIT_TIME 2 71607ca46eSDavid Howells 72607ca46eSDavid Howells /* IOCTL numbers */ 73607ca46eSDavid Howells #define LPCHAR 0x0601 /* corresponds to LP_INIT_CHAR */ 74607ca46eSDavid Howells #define LPTIME 0x0602 /* corresponds to LP_INIT_TIME */ 75607ca46eSDavid Howells #define LPABORT 0x0604 /* call with TRUE arg to abort on error, 76607ca46eSDavid Howells FALSE to retry. Default is retry. */ 77607ca46eSDavid Howells #define LPSETIRQ 0x0605 /* call with new IRQ number, 78607ca46eSDavid Howells or 0 for polling (no IRQ) */ 79607ca46eSDavid Howells #define LPGETIRQ 0x0606 /* get the current IRQ number */ 80607ca46eSDavid Howells #define LPWAIT 0x0608 /* corresponds to LP_INIT_WAIT */ 81607ca46eSDavid Howells /* NOTE: LPCAREFUL is obsoleted and it' s always the default right now -arca */ 82607ca46eSDavid Howells #define LPCAREFUL 0x0609 /* call with TRUE arg to require out-of-paper, off- 83607ca46eSDavid Howells line, and error indicators good on all writes, 84607ca46eSDavid Howells FALSE to ignore them. Default is ignore. */ 85607ca46eSDavid Howells #define LPABORTOPEN 0x060a /* call with TRUE arg to abort open() on error, 86607ca46eSDavid Howells FALSE to ignore error. Default is ignore. */ 87607ca46eSDavid Howells #define LPGETSTATUS 0x060b /* return LP_S(minor) */ 88607ca46eSDavid Howells #define LPRESET 0x060c /* reset printer */ 89607ca46eSDavid Howells #ifdef LP_STATS 90607ca46eSDavid Howells #define LPGETSTATS 0x060d /* get statistics (struct lp_stats) */ 91607ca46eSDavid Howells #endif 92607ca46eSDavid Howells #define LPGETFLAGS 0x060e /* get status flags */ 93*9a450484SArnd Bergmann #define LPSETTIMEOUT_OLD 0x060f /* set parport timeout */ 94*9a450484SArnd Bergmann #define LPSETTIMEOUT_NEW \ 95*9a450484SArnd Bergmann _IOW(0x6, 0xf, __s64[2]) /* set parport timeout */ 96*9a450484SArnd Bergmann #if __BITS_PER_LONG == 64 97*9a450484SArnd Bergmann #define LPSETTIMEOUT LPSETTIMEOUT_OLD 98*9a450484SArnd Bergmann #else 99*9a450484SArnd Bergmann #define LPSETTIMEOUT (sizeof(time_t) > sizeof(__kernel_long_t) ? \ 100*9a450484SArnd Bergmann LPSETTIMEOUT_NEW : LPSETTIMEOUT_OLD) 101*9a450484SArnd Bergmann #endif 102607ca46eSDavid Howells 103607ca46eSDavid Howells /* timeout for printk'ing a timeout, in jiffies (100ths of a second). 104607ca46eSDavid Howells This is also used for re-checking error conditions if LP_ABORT is 105607ca46eSDavid Howells not set. This is the default behavior. */ 106607ca46eSDavid Howells 107607ca46eSDavid Howells #define LP_TIMEOUT_INTERRUPT (60 * HZ) 108607ca46eSDavid Howells #define LP_TIMEOUT_POLLED (10 * HZ) 109607ca46eSDavid Howells 110607ca46eSDavid Howells 111607ca46eSDavid Howells #endif /* _UAPI_LINUX_LP_H */ 112