#ifndef lintstatic char *sccsid = "@(#)qd.c	4.1	(ULTRIX)	7/2/90";#endif lint/*************************************************************************									**			Copyright (c) 1985-1988 by			**		Digital Equipment Corporation, Maynard, MA		**			All rights reserved.				**									**   This software is furnished under a license and may be used and	**   copied  only  in accordance with the terms of such license and	**   with the  inclusion  of  the  above  copyright  notice.   This	**   software  or  any  other copies thereof may not be provided or	**   otherwise made available to any other person.  No title to and	**   ownership of the software is hereby transferred.			**									**   The information in this software is subject to change  without	**   notice  and should not be construed as a commitment by Digital	**   Equipment Corporation.						**									**   Digital assumes no responsibility for the use  or  reliability	**   of its software on equipment which is not supplied by Digital.	**									**************************************************************************//* * qd.c * * Modification history * * QDSS workstation driver * * 15-Dec-89 -- Alan Frechette *	Changes to "ws_display_type" and "ws_display_units". * * 15-Aug-89 -- carito (Allen Carito) *	Changed qdwrite to check for graphic device first then console or *	alternate console.  This fixes the blank screens on GPX's only. *	The fix does have an impact to any other workstation driver. * * 23-Jul-89 -- Randall Brown *	In the default case of an ioctl() call, check the return value *	from ttioctl() to see if the cmd was invalid.  If it was, return *	an error. * * 23-May-89 -- darrell *	Removed the v_ prefix from umaddr and globally defined cpup - as *	part of the new cpusw. * * 08-May-89 -- rafiey (Ali Rafieymehr) * *	When going to physical mode (crash dump) the video could be turned *	off by the server (screen saver). Therefore we turn the video on. * * 08-May-89 -- rafiey (Ali Rafieymehr) * *	When going to single user mode, the keys would behave as if the *	<Ctrl> was also pressed. We now clear the flags for shift and *	control in qdclose routine. * * 08-May-89 -- rafiey (Ali Rafieymehr) * *	The input interrupt routine (qdiint) was printing error messages when *	the event queue was full (in high IPL). These error messages are not *	really usefull.	The solution is to increase the size of the event *	queue (this should be done in the next release). For now there is no *	need to print the error	messages, therefore the "overflow" print *	statements are commented out. * * 16-Feb-89 - Mark Parenti * *	Remove xinfo and xoutput. They were xos remnants. * * 17-Aug-88 - Ali Rafieymehr * *	Fixed a bug in wait_status() routine. We were not waiting long enough *	for the vertical sync. status bit to be set. * *  5-Aug-88 - Tim Burke * *	Return the 2 character sequence 0377, 0377 upon receipt of a valid *	0377 character only when PARMRK is set under the termio line disc. * *  14-July-88 - Vasudev K. Bhandarkar * *      Changed TOY from 16 bits to 32 bits.  X11 server needs 32-bits *      of detail associated with event time stamps. * *  4-Mar-88 - Mary Larson *      Took out change that left vertical sync on.  This caused process *      based X's to crash the machine when closing and then reopening *      the device. * *  1-Dec-87 - Tim Burke * *	Added support for both System V termio(7) and POSIX termios(7).  These *	changes also include support for 8-bit canonical processing.  Changes *	involve: * *	- Default settings on first open depend on mode of open.  For termio *	  opens the defaults are "RAW" style, while non-termio opens default *	  to the traditional "cooked" style. *	- The driver now represents its terminal attributes and special  *	  characters in the POSIX termios data structure.  This contrasts the *	  original approach of storing attributes and special chars in the *	  t_flags, ltchars and tchars. *	- Addition of LPASS8 to local mode word for 8-bit canonical support. * * 28-Sep-87 - Ali Rafieymehr *    Fixed a bug in qddint() routine. The bug was discovered on CVAX. *    Incorrect logic was used when taking an entry from the request queue. * * 12-Oct-87 - Tim Burke *	Modified driver to provide 8-bit support to the console port.  To do  *	this characters are defined in the remainder of the first 15 rows of *	off screen memory as well as in next 15 rows. * *  2-Aug-87 - Fred Canter *    Use TANDEM mode on qconsole for flow control of writes to *    /dev/console. * * 12-Jun-87 - Tim Burke * *	Added full TERMIO functionality to terminal subsystem. *	Changed open routine to setup propper default settings if the line *	is not being used as a graphics device.  Added defines of defaults. * * * 14-May-87 - Fred Canter *	Changed default state of kernel_loop to on. * * 21-Apr-87 - Brian Stevens *	Xos support * * 16-Apr-87 - Fred Canter (for Brian Stevens) *	Multi-head GPX changes. * * 19-Mar-87 - Fred Canter (for Brian Stevens) *	Added X in the kernel support. * * 16-Dec-86 - Brian Stevens * *	added support so "select" could be called on tty type device *      fixed rlogin bug * * 30-Oct-86 - Brian Stevens * *	Removed the mprintf for "unexpected interrupts" * * 26-Aug-86 - rsp (Ricky Palmer) * *	Cleaned up devioctl code to (1) zero out devget structure *	upon entry and (2) use strlen instead of fixed storage *	for bcopy's. * * 21-Jul-86 - Ram Rao *	allowed cursor rectangle to hang (partially) off the *	top and left of screen * * 11-Jul-86 - ricky palmer * *	Added adpt and nexus fields to DEVIOCGET code. * * 02-July-86 - Brian Stevens * *	added support for console writing to second QDSS display * * 20-May-86 - ricky palmer * *	Added new DEVIOCGET ioctl request code. V2.0 * * 16-Apr-86 -- darrell *	 badaddr is now called via the macro BADADDR * * 14-Apr-86 -- afd *	 Changed UMEMmap to QMEMmap and umem to qmem. * *	 v_console() is now refered to as v_consputc, and there is a *	 corresponding v_consgetc() (defined in /sys/vax/conf.c). * *	 Added "qdgetc()" routine for console read.  Needed to read *	 user's answer to the "root device?" prompt with a generic kernel. * * 19-Mar-86 -- pmk *	 Change DELAY to 20000, because microdelay now in real microsec. * * 18-mar-86  -- jaw	 br/cvec changed to NOT use registers. * * 11 mar 86  darrell	replaced percpu with cpusw, and removed all but *			 one global reference * 19 feb 86  bstevens	no report of motion event on puck/stylus button action * 18 feb 86  bstevens	put in cursor box support for tablets * 18-Mar-86 -- jaw  add routines to cpu switch for nexus/unibus addreses *		      also got rid of some globals like nexnum. *		      ka8800 cleanup. * 06 dec 85  longo  added LK-201 error reporting for graphics device ops * 03 dec 85  longo  made qddint() clear active bit on error * 02 dec 85  longo  fixed up some crocks in the error messages * 25 nov 85  longo  added error handling to DMA ISR and single user locking * 19 nov 85  longo  eliminated "set_defaults()" by breaking out sub-calls. *		     Changed init_shared to do real init of scroll struct * 12 nov 85  longo  fixed bug in open that broke alternate console re-direct * 11 nov 85  longo  changed "_vs_eventqueue" references to "qdinput" * 08 nov 85  longo  improved select service for read/write select wakeup. *		     Also set ISR's to ipl4 to allow the interval timer in. * 04 nov 85  longo  fixed bugs in mouse button reporting and dma request stuff * 30 oct 85  longo  DMA to/from user space is in place * 14 oct 85  longo  added kernel msg redirect and QD_RDCURSOR ioctl * 03 oct 85  longo  added support for multiple QDSS's * 02 oct 85  longo  added color map loading services in qdioctl() & qdaint() * 30 sep 85  longo  added DMA interrupt services * 18 sep 85  longo  added scroll services to "qdaint()" adder intrpt service *		     and put in supporting ioctl's * 04 sep 85  longo  initial implementation of DMA is working * 17 aug 85  longo  added support for the QDSS to be system console * 05 aug 85  longo  now using qfont (QVSS & QDSS) as linked object * 12 jun 85  longo  added mouse event loading to "qdiint()" * 31 may 85  longo  put live interrupts into the probe() routine * 30 may 85  longo  event queue shared memory implementation is now alive * 29 may 85  longo  LK-201 input is now interrupt driven * 25 apr 85  longo  MAPDEVICE works * 14 mar 85  longo  created * *	 todo:	 fix rlogin bug in console stuff *		 cat -u console redirection *		 check error return from strategy routine *		 verify TOY time stuff (what format?) *		 look at system based macro implementation of VTOP * */#include "../data/qd_data.c" /* include external references to data file */#define QDSSMAJOR       42              /* QDSS major device number */extern	int	ws_display_type;extern	int	ws_display_units;extern struct cpusw *cpup;		/* pointer to cpusw entry */int     QDlast_DMAtype;                 /* type of the last DMA operation *//*---------------------------------------------------------------------* macro to get system time.  Used to time stamp event queue entries */#define TOY ((time.tv_sec * 1000) + (time.tv_usec / 1000))/*--------------------------------------------------------------------------* the "ioconf.c" program, built and used by auto config, externally refers* to definitions below.  */	int qdprobe();	int qdattach();	int qddint();			/* DMA gate array intrpt service */	int qdaint();			/* Dragon ADDER intrpt service */	int qdiint();	u_short qdstd[] = { 0 };	struct uba_driver qddriver = {	/* externally referenced: ioconf.c */	    qdprobe,			/* device probe entry */	    0,				/* no slave device */	    qdattach,			/* device attach entry */	    0,				/* no "fill csr/ba to start" */	    qdstd,			/* device addresses */	    "qd",			/* device name string */	    qdinfo			/* ptr to QDSS's uba_device struct */	};/*-------------------* general defines */#define QDPRIOR (PZERO-1)		/* must be negative */#define FALSE	0#define TRUE	~FALSE#define BAD	-1#define GOOD	0/*-----------------------------------------------------------------------* macro to create a system virtual page number from system virtual adrs */#define VTOP(x)  (((int)x & ~0xC0000000) >> PGSHIFT) /* convert qmem adrs */						     /* to system page # *//*------------------------------------------------------------------* QDSS register address offsets from start of QDSS address space */#define QDSIZE	 (52 * 1024)	/* size of entire QDSS foot print */#define TMPSIZE  (16 * 1024)	/* template RAM is 8k SHORT WORDS */#define TMPSTART 0x8000 	/* offset of template RAM from base adrs */#define REGSIZE  (5 * 512)	/* regs touch 2.5k (5 pages) of addr space */#define REGSTART 0xC000 	/* offset of reg pages from base adrs */#define ADDER	(REGSTART+0x000)#define DGA	(REGSTART+0x200)#define DUART	(REGSTART+0x400)#define MEMCSR	(REGSTART+0x800)#define CLRSIZE  (3 * 512)		/* color map size */#define CLRSTART (REGSTART+0xA00)	/* color map start offset from base */					/*  0x0C00 really */#define RED	(CLRSTART+0x000)#define BLUE	(CLRSTART+0x200)#define GREEN	(CLRSTART+0x400)/*---------------------------------------------------------------* values used in mapping QDSS hardware into the Q memory space */#define CHUNK	  (64 * 1024)#define QMEMSIZE  (1024 * 1024 * 4)	/* 4 meg *//*----------------------------------------------------------------------* QDSS minor device numbers.  The *real* minor device numbers are in* the bottom two bits of the major/minor device spec.  Bits 2 and up are* used to specify the QDSS device number (ie: which one?) */#define CONS		0#define ALTCONS 	1#define GRAPHIC 	2/*----------------------------------------------* console cursor bitmap (block cursor type)  */	short cons_cursor[32] = {      /* white block cursor */ /* A */ 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF,	 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, /* B */ 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF,	 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF	};/*-------------------------------------* constants used in font operations *//* Originaly this was CHARS 95 */#define CHARS		190 			/* # of chars in the font */#define CHAR_HEIGHT	15			/* char height in pixels */#define CHAR_WIDTH	8			/* char width in pixels*/#define FONT_WIDTH	(CHAR_WIDTH * CHARS)	/* font width in pixels */#define ROWS		CHAR_HEIGHT#define FONT_X		0			/* font's off screen adrs */#define FONT_Y		(2048 - CHAR_HEIGHT)					/* Offset to second row characters */#define FONT_OFFSET	((MAX_SCREEN_X/CHAR_WIDTH)*CHAR_HEIGHT)	extern char q_font[];		/* reference font object code */	extern	u_short q_key[];		/* reference key xlation tables */	extern	u_short q_shift_key[];	extern	char *q_special[];/*--------------------------------------------------* definitions for cursor acceleration reporting  */#define ACC_OFF 	0x01		/* acceleration is inactive *//*--------------------------------------------------------------------------* v_consputc is the switch that is used to redirect the console cnputc() to* the virtual console qdputc().* v_consgetc is the switch that is used to redirect the console getchar() to* the virtual console qdgetc().*/	extern (*v_consputc)();	int qdputc();		/* used to direct kernel console output */	extern (*v_consgetc)();	int qdgetc();		/* used to read kernel console input */	int qdstart();		/* used to direct /dev/console output *//*------------------------------------------------------------------------* LK-201 state storage for input console keyboard conversion to ASCII */	struct q_keyboard {	    int shift;			/* state variables	*/	    int cntrl;	    int lock;	    int lastcode;		/* last keycode typed	*/	    unsigned kup[8];		/* bits for each keycode*/	    unsigned dkeys[8];		/* down/up mode keys	*/	    char last;			/* last character	*/	 } q_keyboard;/*--------------------------------------------------* ULTRIX settings for first open.		  */ #define IFLAGS	(EVENP|ECHO|XTABS|CRMOD)/*------------------------------------------------------------------------* termio flags will be set to these default values in non-termio mode to* provide a backward compatible ULTRIX environment. */#define IFLAG (BRKINT|IGNPAR|ISTRIP|IXON|IXANY|ICRNL)#define OFLAG (OPOST|TAB3|ONLCR)#define LFLAG (ISIG|ICANON|ECHO)#define CFLAG (PARENB|CREAD|CS7|CLOCAL)/*******************************************************************************************************************************************************************************************************	DRIVER FUNCTIONS START HERE:******************************************************************************************************************************************************************************************************//***********************************************************************	qdcons_init()... init QDSS as console (before probe routine)**********************************************************************/qdcons_init(){	register u_int unit;	int *ptep;			/* page table entry pointer */	caddr_t phys_adr;		/* physical QDSS base adrs */	u_int mapix;			/* index into QMEMmap[] array */	u_short *qdaddr;		/* address of QDSS IO page CSR */	u_short *devptr;		/* vitual device space */#define QDSSCSR 0x1F00	unit = 0;/*------------------------------------------------------* Map the Q-bus memory space into the system memory. */	ubaaccess(((*cpup->umaddr)(0)), QMEMmap[0],			cpup->pc_umsize, PG_V | PG_KW);	ubaaccess(((*cpup->udevaddr)(0)), QMEMmap[0]+btop(cpup->pc_umsize),			DEVSPACESIZE ,PG_V|PG_KW);/*---------------------------------------------------------------------* map the QDSS into the Qbus memory (which is now in system space)  */	devptr = (u_short *)((char *)qmem[0]+cpup->pc_umsize);	qdaddr = (u_short *)((u_int)devptr + ubdevreg(QDSSCSR));	if (BADADDR(qdaddr, sizeof(short)))		return(0);	/*---------------------------------------------------	* tell QDSS which Q memory address base to decode */	mapix = (int) VTOP(QMEMSIZE - CHUNK);	ptep = (int *) QMEMmap[0] + mapix;	phys_adr = (caddr_t) (((int)*ptep & 0x001FFFFF) << PGSHIFT);	*qdaddr = (u_short) ((int)phys_adr >> 16);	qdflags[unit].config = *(u_short *)qdaddr;/*----------------------------------------------------------------------* load qdmap struct with the virtual addresses of the QDSS elements */	qdbase[unit] = (caddr_t) (qmem[0] + QMEMSIZE - CHUNK);	qdmap[unit].template = qdbase[unit] + TMPSTART;