patch-2.4.22 linux-2.4.22/drivers/sgi/char/newport.c

• Lines: 223
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/drivers/sgi/char/newport.c
• Orig date: 2002-11-28 15:53:14.000000000 -0800

diff -urN linux-2.4.21/drivers/sgi/char/newport.c linux-2.4.22/drivers/sgi/char/newport.c
@@ -1,222 +0,0 @@
-/*
- * newport.c: context switching the newport graphics card and
- *            newport graphics support.
- *
- * Author: Miguel de Icaza
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <asm/types.h>
-#include <asm/gfx.h>
-#include <asm/ng1.h>
-#include <asm/uaccess.h>
-#include <video/newport.h>
-#include <linux/module.h>
-
-struct newport_regs *npregs;
-
-EXPORT_SYMBOL(npregs);
-
-/* Kernel routines for supporting graphics context switching */
-
-void newport_save (void *y)
-{
-	newport_ctx *x = y;
-	newport_wait ();
-
-#define LOAD(val) x->val = npregs->set.val;
-#define LOADI(val) x->val = npregs->set.val.word;
-#define LOADC(val) x->val = npregs->cset.val;
-
-	LOAD(drawmode1);
-	LOAD(drawmode0);
-	LOAD(lsmode);
-	LOAD(lspattern);
-	LOAD(lspatsave);
-	LOAD(zpattern);
-	LOAD(colorback);
-	LOAD(colorvram);
-	LOAD(alpharef);
-	LOAD(smask0x);
-	LOAD(smask0y);
-	LOADI(_xstart);
-	LOADI(_ystart);
-	LOADI(_xend);
-	LOADI(_yend);
-	LOAD(xsave);
-	LOAD(xymove);
-	LOADI(bresd);
-	LOADI(bress1);
-	LOAD(bresoctinc1);
-	LOAD(bresrndinc2);
-	LOAD(brese1);
-	LOAD(bress2);
-	LOAD(aweight0);
-	LOAD(aweight1);
-	LOADI(colorred);
-	LOADI(coloralpha);
-	LOADI(colorgrn);
-	LOADI(colorblue);
-	LOADI(slopered);
-	LOADI(slopealpha);
-	LOADI(slopegrn);
-	LOADI(slopeblue);
-	LOAD(wrmask);
-	LOAD(hostrw0);
-	LOAD(hostrw1);
-
-        /* configregs */
-
-	LOADC(smask1x);
-	LOADC(smask1y);
-	LOADC(smask2x);
-	LOADC(smask2y);
-	LOADC(smask3x);
-	LOADC(smask3y);
-	LOADC(smask4x);
-	LOADC(smask4y);
-	LOADC(topscan);
-	LOADC(xywin);
-	LOADC(clipmode);
-	LOADC(config);
-
-	/* Mhm, maybe I am missing something, but it seems that
-	 * saving/restoring the DCB is only a matter of saving these
-	 * registers
-	 */
-
-	newport_bfwait ();
-	LOAD (dcbmode);
-	newport_bfwait ();
-	x->dcbdata0 = npregs->set.dcbdata0.byword;
-	newport_bfwait ();
-	LOAD(dcbdata1);
-}
-
-/*
- * Importat things to keep in mind when restoring the newport context:
- *
- * 1. slopered register is stored as a 2's complete (s12.11);
- *    needs to be converted to a signed magnitude (s(8)12.11).
- *
- * 2. xsave should be stored after xstart.
- *
- * 3. None of the registers should be written with the GO address.
- *    (read the docs for more details on this).
- */
-void newport_restore (void *y)
-{
-	newport_ctx *x = y;
-#define STORE(val) npregs->set.val = x->val
-#define STOREI(val) npregs->set.val.word = x->val
-#define STOREC(val) npregs->cset.val = x->val
-	newport_wait ();
-
-	STORE(drawmode1);
-	STORE(drawmode0);
-	STORE(lsmode);
-	STORE(lspattern);
-	STORE(lspatsave);
-	STORE(zpattern);
-	STORE(colorback);
-	STORE(colorvram);
-	STORE(alpharef);
-	STORE(smask0x);
-	STORE(smask0y);
-	STOREI(_xstart);
-	STOREI(_ystart);
-	STOREI(_xend);
-	STOREI(_yend);
-	STORE(xsave);
-	STORE(xymove);
-	STOREI(bresd);
-	STOREI(bress1);
-	STORE(bresoctinc1);
-	STORE(bresrndinc2);
-	STORE(brese1);
-	STORE(bress2);
-	STORE(aweight0);
-	STORE(aweight1);
-	STOREI(colorred);
-	STOREI(coloralpha);
-	STOREI(colorgrn);
-	STOREI(colorblue);
-	STOREI(slopered);
-	STOREI(slopealpha);
-	STOREI(slopegrn);
-	STOREI(slopeblue);
-	STORE(wrmask);
-	STORE(hostrw0);
-	STORE(hostrw1);
-
-        /* configregs */
-
-	STOREC(smask1x);
-	STOREC(smask1y);
-	STOREC(smask2x);
-	STOREC(smask2y);
-	STOREC(smask3x);
-	STOREC(smask3y);
-	STOREC(smask4x);
-	STOREC(smask4y);
-	STOREC(topscan);
-	STOREC(xywin);
-	STOREC(clipmode);
-	STOREC(config);
-
-	/* FIXME: restore dcb thingies */
-}
-
-int
-newport_ioctl (int card, int cmd, unsigned long arg)
-{
-	switch (cmd){
-	case NG1_SETDISPLAYMODE: {
-		struct ng1_setdisplaymode_args request;
-
-		if (copy_from_user (&request, (void *) arg, sizeof (request)))
-			return -EFAULT;
-
-		newport_wait ();
-		newport_bfwait ();
-		npregs->set.dcbmode = DCB_XMAP0 | XM9_CRS_FIFO_AVAIL |
-			DCB_DATAWIDTH_1 | R_DCB_XMAP9_PROTOCOL;
-		xmap9FIFOWait (npregs);
-
-		/* FIXME: timing is wrong, just be extracted from
-		 * the per-board timing table.  I still have to figure
-		 * out where this comes from
-		 *
-		 * This is used to select the protocol used to talk to
-		 * the xmap9.  For now I am using 60, selecting the
-		 * WSLOW_DCB_XMAP9_PROTOCOL.
-		 *
-		 * Robert Tray comments on this issue:
-		 *
-		 * cfreq refers to the frequency of the monitor
-		 * (ie. the refresh rate).  Our monitors run typically
-		 * between 60 Hz and 76 Hz.  But it will be as low as
-		 * 50 Hz if you're displaying NTSC/PAL and as high as
-		 * 120 Hz if you are runining in stereo mode.  You
-		 * might want to try the WSLOW values.
-		 */
-		xmap9SetModeReg (npregs, request.wid, request.mode, 60);
-		return 0;
-	}
-	case NG1_SET_CURSOR_HOTSPOT: {
-		struct ng1_set_cursor_hotspot request;
-
-		if (copy_from_user (&request, (void *) arg, sizeof (request)))
-			return -EFAULT;
-		/* FIXME: make request.xhot, request.yhot the hot spot */
-		return 0;
-	}
-
-	case NG1_SETGAMMARAMP0:
-		/* FIXME: load the gamma ramps :-) */
-		return 0;
-
-	}
-	return -EINVAL;
-}