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