2004-01-21 03:33:37 +03:00
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/* $NetBSD: lptvar.h,v 1.2 2004/01/21 00:33:37 bjh21 Exp $ */
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2004-01-20 02:22:23 +03:00
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#ifndef __DEV_PPBUS_LPTVAR_H
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#define __DEV_PPBUS_LPTVAR_H
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#include <machine/vmparam.h>
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#include <dev/ppbus/ppbus_device.h>
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/* #define LPINITRDY 4 wait up to 4 seconds for a ready
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#define BUFSTATSIZE 32
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#define LPTOUTINITIAL 10 initial timeout to wait for ready 1/10 s
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#define LPTOUTMAX 1 maximal timeout 1 s */
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#define LPPRI (PZERO+8)
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#define BUFSIZE PAGE_SIZE
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#define LPTUNIT(s) (minor(s) & 0x1f)
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#define LPTFLAGS(s) (minor(s) & 0xe0)
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/* Wait up to 16 seconds for a ready */
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#define LPT_TIMEOUT ((hz)*16)
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#define LPT_STEP ((hz)/4)
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struct lpt_softc {
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struct ppbus_device_softc ppbus_dev;
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#define LPT_OK 1
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#define LPT_NOK 0
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u_int8_t sc_dev_ok;
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short sc_state;
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/* bits for state */
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#define OPEN (unsigned)(1<<0) /* device is open */
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#define ASLP (unsigned)(1<<1) /* awaiting draining of printer */
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#define EERROR (unsigned)(1<<2) /* error was received from printer */
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#define OBUSY (unsigned)(1<<3) /* printer is busy doing output */
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#define LPTOUT (unsigned)(1<<4) /* timeout while not selected */
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#define TOUT (unsigned)(1<<5) /* timeout while not selected */
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#define LPTINIT (unsigned)(1<<6) /* waiting to initialize for open */
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#define INTERRUPTED (unsigned)(1<<7) /* write call was interrupted */
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#define HAVEBUS (unsigned)(1<<8) /* the driver owns the bus */
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/*
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* default case: negative prime, negative ack, handshake strobe,
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* prime once
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*/
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u_char sc_control;
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char sc_flags;
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#define LPT_AUTOLF 0x20 /* automatic LF on CR */
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#define LPT_NOPRIME 0x40 /* don't prime on open */
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#define LPT_NOINTR 0x80 /* do not use interrupt */
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char * sc_inbuf;
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char * sc_outbuf;
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bus_addr_t sc_in_baddr;
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bus_addr_t sc_out_baddr;
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size_t sc_xfercnt;
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/* char sc_primed;
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char * sc_cp;*/
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u_short sc_irq; /* IRQ status of port */
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#define LP_HAS_IRQ 0x01 /* we have an irq available */
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#define LP_USE_IRQ 0x02 /* we are using our irq */
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#define LP_ENABLE_IRQ 0x04 /* enable IRQ on open */
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#define LP_ENABLE_EXT 0x10 /* we shall use advanced mode when possible */
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u_char sc_backoff; /* time to call lptout() again */
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struct resource * intr_resource; /* interrupt resource */
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void * intr_cookie; /* interrupt registration cookie */
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};
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#define MAX_SLEEP (hz*5) /* Timeout while waiting for device ready */
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#define MAX_SPIN 20 /* Max delay for device ready in usecs */
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#ifdef _KERNEL
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#ifdef LPT_DEBUG
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static volatile int lptdebug = 1;
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#ifndef LPT_DPRINTF
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#define LPT_DPRINTF(arg) if(lptdebug) printf arg
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#else
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#define LPT_DPRINTF(arg) if(lptdebug) printf("WARNING: LPT_DPRINTF " \
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"REDEFINED!!!")
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#endif /* LPT_DPRINTF */
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#else
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#define LPT_DPRINTF(arg)
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#endif /* LPT_DEBUG */
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#ifdef LPT_VERBOSE
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static volatile int lptverbose = 1;
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#ifndef LPT_VPRINTF
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#define LPT_VPRINTF(arg) if(lptverbose) printf arg
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#else
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#define LPT_VPRINTF(arg) if(lptverbose) printf("WARNING: LPT_VPRINTF " \
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"REDEFINED!!!")
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#endif /* LPT_VPRINTF */
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#else
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#define LPT_VPRINTF(arg)
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#endif /* LPT_VERBOSE */
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#endif /* _KERNEL */
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#endif
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