patch-2.3.9 linux/drivers/sgi/char/cons_newport.c

• Lines: 612
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.8/linux/drivers/sgi/char/cons_newport.c
• Orig date: Fri May 8 00:23:41 1998

diff -u --recursive --new-file v2.3.8/linux/drivers/sgi/char/cons_newport.c linux/drivers/sgi/char/cons_newport.c
@@ -1,611 +0,0 @@
-/*
- * cons_newport.c: Newport graphics console code for the SGI.
- *
- * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
- *
- * $Id: cons_newport.c,v 1.1 1998/01/10 19:05:47 ecd Exp $
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/errno.h>
-#include <linux/kd.h>
-#include <linux/tty.h>
-#include <linux/malloc.h>
-#include <linux/major.h>
-#include <linux/mm.h>
-#include <linux/version.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/bitops.h>
-#include <asm/sgialib.h>
-#include <asm/ptrace.h>
-
-#include <linux/kbd_kern.h>
-#include <linux/vt_kern.h>
-#include <linux/consolemap.h>
-#include <linux/selection.h>
-#include <linux/console_struct.h>
-
-#include "gconsole.h"
-#include "newport.h"
-#include "graphics.h" /* Just for now */
-#include <asm/gfx.h>
-#include <asm/ng1.h>
-
-#if 0
-#include "linux_logo.h"
-#endif
-
-#define BMASK(c) (c << 24)
-
-#define RENDER(regs, cp) do { \
-(regs)->go.zpattern = BMASK((cp)[0x0]); (regs)->go.zpattern = BMASK((cp)[0x1]); \
-(regs)->go.zpattern = BMASK((cp)[0x2]); (regs)->go.zpattern = BMASK((cp)[0x3]); \
-(regs)->go.zpattern = BMASK((cp)[0x4]); (regs)->go.zpattern = BMASK((cp)[0x5]); \
-(regs)->go.zpattern = BMASK((cp)[0x6]); (regs)->go.zpattern = BMASK((cp)[0x7]); \
-(regs)->go.zpattern = BMASK((cp)[0x8]); (regs)->go.zpattern = BMASK((cp)[0x9]); \
-(regs)->go.zpattern = BMASK((cp)[0xa]); (regs)->go.zpattern = BMASK((cp)[0xb]); \
-(regs)->go.zpattern = BMASK((cp)[0xc]); (regs)->go.zpattern = BMASK((cp)[0xd]); \
-(regs)->go.zpattern = BMASK((cp)[0xe]); (regs)->go.zpattern = BMASK((cp)[0xf]); \
-} while(0)        
-
-#define REVERSE_RENDER(regs, cp) do { \
-(regs)->go.zpattern = BMASK((~(cp)[0x0])); (regs)->go.zpattern = BMASK((~(cp)[0x1])); \
-(regs)->go.zpattern = BMASK((~(cp)[0x2])); (regs)->go.zpattern = BMASK((~(cp)[0x3])); \
-(regs)->go.zpattern = BMASK((~(cp)[0x4])); (regs)->go.zpattern = BMASK((~(cp)[0x5])); \
-(regs)->go.zpattern = BMASK((~(cp)[0x6])); (regs)->go.zpattern = BMASK((~(cp)[0x7])); \
-(regs)->go.zpattern = BMASK((~(cp)[0x8])); (regs)->go.zpattern = BMASK((~(cp)[0x9])); \
-(regs)->go.zpattern = BMASK((~(cp)[0xa])); (regs)->go.zpattern = BMASK((~(cp)[0xb])); \
-(regs)->go.zpattern = BMASK((~(cp)[0xc])); (regs)->go.zpattern = BMASK((~(cp)[0xd])); \
-(regs)->go.zpattern = BMASK((~(cp)[0xe])); (regs)->go.zpattern = BMASK((~(cp)[0xf])); \
-} while(0)        
-
-extern int default_red[16], default_grn[16], default_blu[16];
-extern unsigned char video_type;
-
-static int cursor_pos = -1;
-struct newport_regs *npregs;
-
-#define TESTVAL 0xdeadbeef
-#define XSTI_TO_FXSTART(val) (((val) & 0xffff) << 11)
-
-static inline void
-newport_disable_video(void)
-{
-	unsigned short treg;
-
-	treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
-	newport_vc2_set(npregs, VC2_IREG_CONTROL, (treg & ~(VC2_CTRL_EVIDEO)));
-}
-
-static inline void
-newport_enable_video(void)
-{
-	unsigned short treg;
-
-	treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
-	newport_vc2_set(npregs, VC2_IREG_CONTROL, (treg | VC2_CTRL_EVIDEO));
-}
-
-static inline void
-newport_disable_cursor(void)
-{
-	unsigned short treg;
-
-	treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
-	newport_vc2_set(npregs, VC2_IREG_CONTROL, (treg & ~(VC2_CTRL_ECDISP)));
-}
-
-#if 0
-static inline void
-newport_enable_cursor(void)
-{
-	unsigned short treg;
-
-	treg = newport_vc2_get(npregs, VC2_IREG_CONTROL);
-	newport_vc2_set(npregs, VC2_IREG_CONTROL, (treg | VC2_CTRL_ECDISP));
-}
-#endif
-
-static inline void
-newport_init_cmap(void)
-{
-	unsigned short i;
-
-	for(i = 0; i < 16; i++) {
-		newport_bfwait();
-		newport_cmap_setaddr(npregs, color_table[i]);
-		newport_cmap_setrgb(npregs,
-				    default_red[i],
-				    default_grn[i],
-				    default_blu[i]);
-	}
-}
-
-#if 0
-static inline void
-newport_init_cursor(void)
-{
-	unsigned char cursor[256];
-	unsigned short *cookie;
-	int i;
-
-	for(i = 0; i < 256; i++)
-		cursor[i] = 0x0;
-	for(i = 211; i < 256; i+=4) {
-		cursor[i] = 0xff;
-#if 0
-		cursor[(i + 128) << 2] = 0xff;
-		cursor[((i + 128) << 2) + 1] = 0xff;
-#endif
-	}
-
-	/* Load the SRAM on the VC2 for this new GLYPH. */
-	cookie = (unsigned short *) cursor;
-	newport_vc2_set(npregs, VC2_IREG_RADDR, VC2_CGLYPH_ADDR);
-	npregs->set.dcbmode = (NPORT_DMODE_AVC2 | VC2_REGADDR_RAM |
-			       NPORT_DMODE_W2 | VC2_PROTOCOL);
-	for(i = 0; i < 128; i++) {
-		newport_bfwait();
-		npregs->set.dcbdata0.hwords.s1 = *cookie++;
-	}
-
-	/* Place the cursor at origin. */
-	newport_vc2_set(npregs, VC2_IREG_CURSX, 0);
-	newport_vc2_set(npregs, VC2_IREG_CURSY, 0);
-	newport_enable_cursor();
-}
-#endif
-
-static inline void
-newport_clear_screen(void)
-{
-	newport_wait();
-	npregs->set.wrmask = 0xffffffff;
-	npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
-			      NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX |
-			      NPORT_DMODE0_STOPY);
-	npregs->set.colori = 0;
-	npregs->set.xystarti = 0;
-	npregs->go.xyendi = (((1280 + 63) << 16)|(1024));
-	newport_bfwait();
-}
-
-static inline void
-newport_render_version(void)
-{
-#if 0
-	unsigned short *ush;
-	int currcons = 0;
-	char *p;
-
-	ush = (unsigned short *) video_mem_base + video_num_columns * 2 + 20;
-	for (p = "SGI/Linux version " UTS_RELEASE; *p; p++, ush++) {
-		*ush = (attr << 8) + *p;
-		newport_blitc (*ush, (unsigned long) ush);
-	}
-#endif
-}
-
-#if 0
-static inline void
-newport_render_logo(void)
-{
-	int i, xpos, ypos;
-	unsigned char *bmap;
-
-	xpos = 8;
-	ypos = 18;
-
-	newport_wait();
-	npregs->set.colori = 9;
-	npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
-			      NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB |
-			      NPORT_DMODE0_L32);
-
-	for(i = 0; i < 80; i+=8) {
-		/* Set coordinates for bitmap operation. */
-		npregs->set.xystarti = ((xpos + i) << 16) | ypos;
-		npregs->set.xyendi = (((xpos + i) + 7) << 16);
-		newport_wait();
-
-		bmap = linux_logo + (i * 80);
-		RENDER(npregs, bmap); bmap += 0x10;
-		RENDER(npregs, bmap); bmap += 0x10;
-		RENDER(npregs, bmap); bmap += 0x10;
-		RENDER(npregs, bmap); bmap += 0x10;
-		RENDER(npregs, bmap);
-	}
-	prom_getchar();
-	prom_imode();
-}
-#endif
-
-static inline void
-newport_render_background(int xpos, int ypos, int ci)
-{
-	newport_wait();
-	npregs->set.wrmask = 0xffffffff;
-	npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
-			      NPORT_DMODE0_DOSETUP | NPORT_DMODE0_STOPX |
-			      NPORT_DMODE0_STOPY);
-	npregs->set.colori = ci;
-	npregs->set.xystarti = (xpos << 16) | ypos;
-	npregs->go.xyendi = ((xpos + 7) << 16) | (ypos + 15);
-}
-
-void
-newport_set_origin(unsigned short offset)
-{
-	/* maybe this works... */
-	__origin = offset;
-}
-
-void
-newport_hide_cursor(void)
-{
-	int xpos, ypos, idx;
-	unsigned long flags;
-
-	if(vt_cons[fg_console]->vc_mode == KD_GRAPHICS)
-		return;
-	save_and_cli(flags);
-
-	idx = cursor_pos;
-	if(idx == -1) {
-		restore_flags(flags);
-		return;
-	}
-	xpos = 8 + ((idx % video_num_columns) << 3);
-	ypos = 18 + ((idx / video_num_columns) << 4);
-	newport_render_background(xpos, ypos, 0);
-	restore_flags(flags);
-}
-
-void
-newport_set_cursor(int currcons)
-{
-	int xpos, ypos, idx, oldpos;
-	unsigned short *sp, *osp, cattr;
-	unsigned long flags;
-	unsigned char *p;
-
-	if (currcons != fg_console || console_blanked || vcmode == KD_GRAPHICS)
-		return;
-
-	if (__real_origin != __origin)
-		__set_origin(__real_origin);
-
-	save_and_cli(flags);
-
-	idx = (pos - video_mem_base) >> 1;
-	sp = (unsigned short *) pos;
-	oldpos = cursor_pos;
-	cursor_pos = idx;
-	if(!deccm) {
-		hide_cursor();
-		restore_flags(flags);
-		return;
-	}
-	xpos = 8 + ((idx % video_num_columns) << 3);
-	ypos = 18 + ((idx / video_num_columns) << 4);
-	if(oldpos != -1) {
-		int oxpos, oypos;
-
-		/* Restore old location. */
-		osp = (unsigned short *) ((oldpos << 1) + video_mem_base);
-		oxpos = 8 + ((oldpos % video_num_columns) << 3);
-		oypos = 18 + ((oldpos / video_num_columns) << 4);
-		cattr = *osp;
-		newport_render_background(oxpos, oypos, (cattr & 0xf000) >> 12);
-		p = &vga_font[(cattr & 0xff) << 4];
-		newport_wait();
-		npregs->set.colori = (cattr & 0x0f00) >> 8;
-		npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
-				      NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB |
-				      NPORT_DMODE0_L32);
-		npregs->set.xystarti = (oxpos << 16) | oypos;
-		npregs->set.xyendi = ((oxpos + 7) << 16);
-		newport_wait();
-		RENDER(npregs, p);
-	}
-	cattr = *sp;
-	newport_render_background(xpos, ypos, (cattr & 0xf000) >> 12);
-	p = &vga_font[(cattr & 0xff) << 4];
-	newport_wait();
-	npregs->set.colori = (cattr & 0x0f00) >> 8;
-	npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
-			      NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB |
-			      NPORT_DMODE0_L32);
-	npregs->set.xystarti = (xpos << 16) | ypos;
-	npregs->set.xyendi = ((xpos + 7) << 16);
-	newport_wait();
-	REVERSE_RENDER(npregs, p);
-	restore_flags (flags);
-	return;
-}
-
-void
-newport_get_scrmem(int currcons)
-{
-	memcpyw((unsigned short *)vc_scrbuf[currcons],
-		(unsigned short *)origin, video_screen_size);
-	origin = video_mem_start = (unsigned long)vc_scrbuf[currcons];
-	scr_end = video_mem_end = video_mem_start + video_screen_size;
-	pos = origin + y*video_size_row + (x<<1);
-}
-
-void
-newport_set_scrmem(int currcons, long offset)
-{
-	if (video_mem_term - video_mem_base < offset + video_screen_size)
-		offset = 0;
-	memcpyw((unsigned short *)(video_mem_base + offset),
-		(unsigned short *) origin, video_screen_size);
-	video_mem_start = video_mem_base;
-	video_mem_end = video_mem_term;
-	origin = video_mem_base + offset;
-	scr_end = origin + video_screen_size;
-	pos = origin + y*video_size_row + (x<<1);
-	has_wrapped = 0;
-}
-
-int
-newport_set_get_cmap(unsigned char * arg, int set)
-{
-	unsigned short ent;
-	int i;
-
-	i = verify_area(set ? VERIFY_READ : VERIFY_WRITE, (void *)arg, 16*3);
-	if (i)
-		return i;
-
-	for (i=0; i<16; i++) {
-		if (set) {
-			__get_user(default_red[i], arg++);
-			__get_user(default_grn[i], arg++);
-			__get_user(default_blu[i], arg++);
-		} else {
-			__put_user (default_red[i], arg++);
-			__put_user (default_grn[i], arg++);
-			__put_user (default_blu[i], arg++);
-		}
-	}
-	if (set) {
-		for (i=0; i<MAX_NR_CONSOLES; i++) {
-			if (vc_cons_allocated(i)) {
-				int j, k;
-				for (j = k = 0; j<16; j++) {
-					vc_cons[i].d->vc_palette[k++] =
-						default_red[j];
-					vc_cons[i].d->vc_palette[k++] =
-						default_grn[j];
-					vc_cons[i].d->vc_palette[k++] =
-						default_blu[j];
-				}
-			}
-		}
-		if(console_blanked || vt_cons[fg_console]->vc_mode == KD_GRAPHICS)
-			return 0;
-		for(ent = 0; ent < 16; ent++) {
-			newport_bfwait();
-			newport_cmap_setaddr(npregs, ent);
-			newport_cmap_setrgb(npregs,
-					    default_red[ent],
-					    default_grn[ent],
-					    default_blu[ent]);
-		}
-	}
-
-	return 0;
-}
-
-void
-newport_blitc(unsigned short charattr, unsigned long addr)
-{
-	int idx, xpos, ypos;
-	unsigned char *p;
-
-	idx = (addr - (video_mem_base + (__origin<<1))) >> 1;
-	xpos = 8 + ((idx % video_num_columns) << 3);
-	ypos = 18 + ((idx / video_num_columns) << 4);
-
-	p = &vga_font[(charattr & 0xff) << 4];
-	charattr = (charattr >> 8) & 0xff;
-
-	newport_render_background(xpos, ypos, (charattr & 0xf0) >> 4);
-
-	/* Set the color and drawing mode. */
-	newport_wait();
-	npregs->set.colori = charattr & 0xf;
-	npregs->set.drawmode0 = (NPORT_DMODE0_DRAW | NPORT_DMODE0_BLOCK |
-			      NPORT_DMODE0_STOPX | NPORT_DMODE0_ZPENAB |
-			      NPORT_DMODE0_L32);
-
-	/* Set coordinates for bitmap operation. */
-	npregs->set.xystarti = (xpos << 16) | ypos;
-	npregs->set.xyendi = ((xpos + 7) << 16);
-	newport_wait();
-
-	/* Go, baby, go... */
-	RENDER(npregs, p);
-}
-
-void
-newport_memsetw(void * s, unsigned short c, unsigned int count)
-{
-	unsigned short * addr = (unsigned short *) s;
-
-	count /= 2;
-	if (vt_cons[fg_console]->vc_mode == KD_GRAPHICS) {
-		while (count) {
-			count--;
-			*addr++ = c;
-		}
-		return;
-	}
-	if ((unsigned long) addr + count > video_mem_term ||
-	    (unsigned long) addr < video_mem_base) {
-	    	if ((unsigned long) addr + count <= video_mem_term ||
-	    	    (unsigned long) addr > video_mem_base) {
-			while (count) {
-				count--;
-				*addr++ = c;
-			}
-			return;
-	    	} else {
-			while (count) {
-				count--;
-				scr_writew(c, addr++);
-			}
-		}
-	} else {
-		while (count) {
-			count--;
-			if (*addr != c) {
-				newport_blitc(c, (unsigned long)addr);
-				*addr++ = c;
-			} else
-				addr++;
-		}
-	}
-}
-
-void
-newport_memcpyw(unsigned short *to, unsigned short *from, unsigned int count)
-{
-	if (vt_cons[fg_console]->vc_mode == KD_GRAPHICS) {
-		memcpy(to, from, count);
-		return;
-	}
-	if ((unsigned long) to + count > video_mem_term ||
-	    (unsigned long) to < video_mem_base) {
-	    	if ((unsigned long) to + count <= video_mem_term ||
-	    	    (unsigned long) to > video_mem_base)
-	    	    	memcpy(to, from, count);
-	    	else {
-	    		count /= 2;
-			while (count) {
-				count--;
-				scr_writew(scr_readw(from++), to++);
-			}
-		}
-	} else {
-		count /= 2;
-		while (count) {
-			count--;
-			if (*to != *from) {
-				newport_blitc(*from, (unsigned long)to);
-				*to++ = *from++;
-			} else {
-				from++;
-				to++;
-			}
-		}
-	}
-}
-
-struct console_ops newport_console = {
-	newport_set_origin,
-	newport_hide_cursor,
-	newport_set_cursor,
-	newport_get_scrmem,
-	newport_set_scrmem,
-	newport_set_get_cmap,
-	newport_blitc,
-	newport_memsetw,
-	newport_memcpyw
-};
-
-/* Currently hard-coded values that are the same as those found on my system */
-struct ng1_info newport_board_info = {
-	{ "NG1", "" /* what is the label? */, 1280, 1024, sizeof (struct ng1_info) },
-	6,			/* boardrev */
-	1,			/* rex3rev */
-	0,			/* vc2rev */
-	2,			/* monitor type */
-        0,			/* videoinstalled */
-	3,			/* mcrev */
-	24,			/* bitplanes */
-	0,			/* xmap9rev */
-	2,			/* cmaprev */
-	{ 256, 1280, 1024, 76},	/* ng1_vof_info */
-	13,			/* paneltype */
-	0
-};
-
-void
-newport_reset (void)
-{
-	newport_wait();
-	newport_enable_video();
-
-	/* Init the cursor disappear. */
-	newport_wait();
-#if 0
-	newport_init_cursor();
-#else
-	newport_disable_cursor();
-#endif
-
-	newport_init_cmap();
-
-	/* Clear the screen. */
-	newport_clear_screen();
-}
-
-/* right now the newport does not do anything at all */
-struct graphics_ops newport_graphic_ops = {
-	0,			      /* owner */
-	0,			      /* current user */
-	(void *) &newport_board_info, /* board info */
-	sizeof (struct ng1_info),     /* size of our data structure */
-	0, 0,			      /* g_regs, g_regs_size */
-	newport_save, newport_restore, /* g_save_context, g_restore_context */
-	newport_reset, newport_ioctl /* g_reset_console, g_ioctl */
-};
-
-struct graphics_ops *
-newport_probe (int slot, const char **name)
-{
-	struct newport_regs *p;
-
-	npregs = (struct newport_regs *) (KSEG1 + 0x1f0f0000);
-	
-	p = npregs;
-	p->cset.config = NPORT_CFG_GD0;
-
-	if(newport_wait()) {
-		prom_printf("whoops, timeout, no NEWPORT there?");
-		return 0;
-	}
-
-	p->set.xstarti = TESTVAL; if(p->set._xstart.i != XSTI_TO_FXSTART(TESTVAL)) {
-		prom_printf("newport_probe: read back wrong value ;-(\n");
-		return 0;
-	}
-
-	if (slot == 0){
-		register_gconsole (&newport_console);
-		video_type = VIDEO_TYPE_SGI;
-		can_do_color = 1;
-		*name = "NEWPORT";
-	}
-
-	newport_reset ();
-	newport_render_version();
-#if 0
-	newport_render_logo();
-#endif
-	newport_graphic_ops.g_regs = 0x1f0f0000;
-	newport_graphic_ops.g_regs_size = sizeof (struct newport_regs);
-	return &newport_graphic_ops;
-}