/* $NetBSD: pm.c,v 1.27 1999/04/24 08:01:05 simonb Exp $ */ /*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ralph Campbell and Rick Macklem. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)pm.c 8.1 (Berkeley) 6/10/93 */ /* * devGraphics.c -- * * This file contains machine-dependent routines for the graphics device. * * Copyright (C) 1989 Digital Equipment Corporation. * Permission to use, copy, modify, and distribute this software and * its documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice appears in all copies. * Digital Equipment Corporation makes no representations about the * suitability of this software for any purpose. It is provided "as is" * without express or implied warranty. * * from: Header: /sprite/src/kernel/dev/ds3100.md/RCS/devGraphics.c, * v 9.2 90/02/13 22:16:24 shirriff Exp SPRITE (DECWRL)"; */ #include /* RCS ID & Copyright macro defns */ __KERNEL_RCSID(0, "$NetBSD: pm.c,v 1.27 1999/04/24 08:01:05 simonb Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* XXX wbflush() */ #include #include #include #include #include #include #include /* * These need to be mapped into user space. */ extern struct fbuaccess pmu; struct fbuaccess pmu; static u_short curReg; /* copy of PCCRegs.cmdr since it's read only */ /* * rcons methods and globals. */ struct pmax_fbtty pmfb; /* * Forward references. */ extern void pmScreenInit __P((struct fbinfo *fi)); static void pmLoadCursor __P((struct fbinfo *fi, u_short *ptr)); void pmPosCursor __P((struct fbinfo *fi, int x, int y)); void bt478CursorColor __P((struct fbinfo *fi, u_int *color)); void bt478InitColorMap __P((struct fbinfo *fi)); void pccCursorOn __P((struct fbinfo *fi)); void pccCursorOff __P((struct fbinfo *fi)); void pmInitColorMap __P((struct fbinfo *fi)); int pminit __P((struct fbinfo *fi, int unit, int cold_console_flag)); int pmattach __P((struct fbinfo *fi, int unit, int cold_console_flag)); static int pm_video_on __P ((struct fbinfo *)); static int pm_video_off __P ((struct fbinfo *)); #define CMAP_BITS (3 * 256) /* 256 entries, 3 bytes per. */ static u_char cmap_bits [CMAP_BITS]; /* colormap for console... */ /* new-style raster-cons "driver" methods */ struct fbdriver pm_driver = { pm_video_on, pm_video_off, pmInitColorMap, /* pcc cursor wrapper for bt478InitColorMap */ bt478GetColorMap, bt478LoadColorMap, pmPosCursor, pmLoadCursor, bt478CursorColor, }; /* * Machine-independent backend to attach a pm device. * assumes the following fields in struct fbinfo *fi have been set * by the MD front-end: * * fi->fi_pixels framebuffer raster memory * fi->fi_vdac vdac register address * fi->fi_base address of programmable cursor chip registers * fi->fi_type.fb_depth 1 (mono) or 8 (colour) * fi->fi_fbu QVSS-compatible user-mapped fbinfo struct */ int pmattach(fi, unit, cold_console_flag) struct fbinfo *fi; int unit; int cold_console_flag; { PCCRegs *pcc = (PCCRegs *)fi->fi_base; /* check for no frame buffer */ if (badaddr((char *)fi->fi_pixels, 4)) return (0); /* Fill in the stuff that differs from monochrome to color. */ if (fi->fi_type.fb_depth == 1) { fi->fi_type.fb_depth = 1; fi->fi_type.fb_cmsize = 0; fi->fi_type.fb_boardtype = PMAX_FBTYPE_PM_MONO; fi->fi_type.fb_size = 0x40000; fi->fi_linebytes = 256; } else { fi->fi_type.fb_depth = 8; fi->fi_type.fb_cmsize = 256; fi->fi_type.fb_boardtype = PMAX_FBTYPE_PM_COLOR; fi->fi_type.fb_size = 0x100000; fi->fi_linebytes = 1024; } /* Fill in main frame buffer info struct. */ fi->fi_driver = &pm_driver; fi->fi_pixelsize = ((fi->fi_type.fb_depth == 1) ? 1024 / 8 : 1024) * 864; fi->fi_blanked = 0; if (cold_console_flag) { fi->fi_cmap_bits = (caddr_t)cmap_bits; } else { fi->fi_cmap_bits = malloc(CMAP_BITS, M_DEVBUF, M_NOWAIT); if (fi->fi_cmap_bits == NULL) { printf("pm%d: no memory for cmap\n", unit); return (0); } } fi->fi_type.fb_width = 1024; fi->fi_type.fb_height = 864; /* * Compatibility glue */ fi->fi_glasstty = &pmfb; /* * Initialize the screen. */ pcc->cmdr = PCC_FOPB | PCC_VBHI; /* Initialize the cursor register on . */ /* Turn off the hardware cursor sprite for rcons text mode. */ curReg = 0; /* XXX */ pccCursorOff(fi); /* * Initialize the color map, the screen, and the mouse. */ bt478init(fi); /* * Initialize old-style pmax screen info. */ fi->fi_fbu->scrInfo.max_row = 56; fi->fi_fbu->scrInfo.max_col = 80; init_pmaxfbu(fi); /* These are non-zero on the kn01 framebuffer. Why? */ fi->fi_fbu->scrInfo.min_cur_x = -15; fi->fi_fbu->scrInfo.min_cur_y = -15; #ifdef notanymore bt478InitColorMap(fi); /* done inside bt478init() */ #endif /* * Connect to the raster-console pseudo-driver. */ fi->fi_glasstty = &pmfb; /*XXX*/ fbconnect((fi->fi_type.fb_depth == 1) ? "KN01 mfb" : "KN01 cfb", fi, cold_console_flag); #ifdef fpinitialized fp->initialized = 1; #endif return (1); } /* * ---------------------------------------------------------------------------- * * pmLoadCursor -- * * Routine to load the cursor Sprite pattern. * * Results: * None. * * Side effects: * The cursor is loaded into the hardware cursor. * Also, turn on the cursor in case it was disabled before. * If someone sets a cursor pattern, it should probably be displayed. * * ---------------------------------------------------------------------------- */ static void pmLoadCursor(fi, cur) struct fbinfo *fi; unsigned short *cur; { PCCRegs *pcc = (PCCRegs *)fi->fi_base; int i; curReg |= PCC_LODSA; pcc->cmdr = curReg; for (i = 0; i < 32; i++) { pcc->memory = cur[i]; wbflush(); } curReg &= ~PCC_LODSA; /* turn on the cursor plane overlays in the PCC chip. */ curReg |= (PCC_ENPA | PCC_ENPB); pcc->cmdr = curReg; } /* *---------------------------------------------------------------------- * * pmPosCursor -- * * Postion the cursor. * * Results: * None. * * Side effects: * None. * NB: should not turn on the hardwar cursor, since the * Xserver positions the cursor to upper left corner as the last * cursor operation before it exits. * *---------------------------------------------------------------------- */ void pmPosCursor(fi, x, y) struct fbinfo *fi; int x, y; { PCCRegs *pcc = (PCCRegs *)fi->fi_base; if (y < fi->fi_fbu->scrInfo.min_cur_y || y > fi->fi_fbu->scrInfo.max_cur_y) y = fi->fi_fbu->scrInfo.max_cur_y; if (x < fi->fi_fbu->scrInfo.min_cur_x || x > fi->fi_fbu->scrInfo.max_cur_x) x = fi->fi_fbu->scrInfo.max_cur_x; fi->fi_fbu->scrInfo.cursor.x = x; /* keep track of real cursor */ fi->fi_fbu->scrInfo.cursor.y = y; /* position, indep. of mouse */ pcc->xpos = PCC_X_OFFSET + x; pcc->ypos = PCC_Y_OFFSET + y; } /* * Turn hardware cursor on by turning on the enable for A and B * overlay planes. video output under the cursor sprite is then * determined by the A and B plane contents. */ void pccCursorOn(fi) struct fbinfo *fi; { PCCRegs *pcc = (PCCRegs *)fi -> fi_base; pcc -> cmdr = curReg | (PCC_ENPA | PCC_ENPB); wbflush(); } /* * Turn hardware cursor off by turning off the enable for A and B * overlay planes. video output under the cursor sprite is then * determined by the framebuffer contents. */ void pccCursorOff(fi) struct fbinfo *fi; { PCCRegs *pcc = (PCCRegs *)fi -> fi_base; pcc -> cmdr = curReg & ~(PCC_ENPA | PCC_ENPB); wbflush(); } /* * Initialize colourmap to default values. * The default cursor hardware state is off. */ void pmInitColorMap(fi) struct fbinfo *fi; { bt478InitColorMap(fi); pccCursorOff(fi); } /* * Enable the video display. */ static int pm_video_on (fi) struct fbinfo *fi; { PCCRegs *pcc = (PCCRegs *)fi -> fi_base; if (!fi -> fi_blanked) return 0; pcc -> cmdr = curReg & ~(PCC_FOPA | PCC_FOPB); bt478RestoreCursorColor (fi); fi -> fi_blanked = 0; return 0; } /* * Disable the video display. * Sets the FOPA and FOPB bits in the PCC chip to force the contents * of the A and B overlay planes to 1. Video output is then * determined by colourmap entry 12 (0x0c), which we set here to * black. */ static int pm_video_off (fi) struct fbinfo *fi; { PCCRegs *pcc = (PCCRegs *)fi -> fi_base; if (fi -> fi_blanked) return 0; bt478BlankCursor (fi); pcc -> cmdr = curReg | PCC_FOPA | PCC_FOPB; fi -> fi_blanked = 1; return 0; }