patch-2.1.110 linux/drivers/video/promfb.c

• Lines: 488
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.1.109/linux/drivers/video/promfb.c
• Orig date: Thu Jul 16 18:09:27 1998

diff -u --recursive --new-file v2.1.109/linux/drivers/video/promfb.c linux/drivers/video/promfb.c
@@ -1,487 +0,0 @@
-/* $Id: promfb.c,v 1.3 1998/07/08 07:36:49 ecd Exp $
- *
- * Copyright (C) 1998  Eddie C. Dost  (ecd@skynet.be)
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/tty.h>
-#include <linux/malloc.h>
-#include <linux/delay.h>
-#include <linux/console.h>
-#include <linux/fb.h>
-
-#include "promfb.h"
-
-extern int prom_stdout;
-
-#define PROM_FONT_HEIGHT	22
-#define PROM_FONT_WIDTH		12
-
-void promfb_init(void);
-void promfb_setup(char *options, int *ints);
-
-
-static int
-promfb_open(struct fb_info *info, int user)
-{
-	MOD_INC_USE_COUNT;
-	return 0;
-}
-
-static int
-promfb_release(struct fb_info *info, int user)
-{
-	MOD_DEC_USE_COUNT;
-	return 0;
-}
-
-static int
-promfb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info)
-{
-	struct fb_info_promfb *fb = promfbinfo(info);
-
-	memcpy(fix, &fb->fix, sizeof(struct fb_fix_screeninfo));
-	return 0;
-}
-
-static int
-promfb_get_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
-{
-	struct fb_info_promfb *fb = promfbinfo(info);
-
-	memcpy(var, &fb->var, sizeof(struct fb_var_screeninfo));
-	return 0;
-}
-
-static int
-promfb_set_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
-{
-	return -EINVAL;
-}
-
-static int
-promfb_get_cmap(struct fb_cmap *cmap, int kspc, int con, struct fb_info *info)
-{
-	return 0;
-}
-
-static int
-promfb_set_cmap(struct fb_cmap *cmap, int kspc, int con, struct fb_info *info)
-{
-	return -EINVAL;
-}
-
-static int
-promfb_pan_display(struct fb_var_screeninfo *var, int con, struct fb_info *info)
-{
-	if (var->xoffset || var->yoffset)
-		return -EINVAL;
-	return 0;
-}
-
-static int
-promfb_ioctl(struct inode *inode, struct file *file, u_int cmd,
-	     u_long arg, int con, struct fb_info *info)
-{
-	return -EINVAL;
-}
-
-static int
-promfb_mmap(struct fb_info *info, struct file *file, struct vm_area_struct *vma)
-{
-	return -EINVAL;
-}
-
-static struct fb_ops promfb_ops = {
-	promfb_open,
-	promfb_release,
-	promfb_get_fix,
-	promfb_get_var,
-	promfb_set_var,
-	promfb_get_cmap,
-	promfb_set_cmap,
-	promfb_pan_display,
-	promfb_ioctl,
-	promfb_mmap
-};
-
-
-static int
-promfbcon_switch(int con, struct fb_info *info)
-{
-	return 0;
-}
-
-static int
-promfbcon_updatevar(int con, struct fb_info *info)
-{
-	return 0;
-}
-
-static void
-promfbcon_blank(int blank, struct fb_info *info)
-{
-	/* nothing */
-}
-
-
-static void
-prom_start(struct fb_info_promfb *fb, struct display *d)
-{
-	unsigned short *dst = fb->data + d->next_line * fb->cury + fb->curx;
-
-	if (fb->curx == fb->maxx && fb->cury == fb->maxy)
-		return;
-
-	if (*dst & 0x0800)
-		prom_printf("\033[7m%c\033[m\033[%d;%dH",
-			    *dst, fb->cury + 1, fb->curx + 1);
-	else
-		prom_printf("%c\033[%d;%dH",
-			    *dst, fb->cury + 1, fb->curx + 1);
-}
-
-static void
-prom_stop(struct fb_info_promfb *fb, struct display *d)
-{
-	unsigned short *dst = fb->data + d->next_line * fb->cury + fb->curx;
-
-	if (fb->curx == fb->maxx && fb->cury == fb->maxy)
-		return;
-
-	if (*dst & 0x0800)
-		prom_printf("\033[%d;%dH%c\033[%d;%dH",
-			    fb->cury + 1, fb->curx + 1, *dst,
-			    fb->cury + 1, fb->curx + 1);
-	else
-		prom_printf("\033[%d;%dH\033[7m%c\033[m\033[%d;%dH",
-			    fb->cury + 1, fb->curx + 1, *dst,
-			    fb->cury + 1, fb->curx + 1);
-}
-
-static void
-fbcon_prom_setup(struct display *d)
-{
-	d->next_line = d->line_length;
-	d->next_plane = 0;
-}
-
-static void
-fbcon_prom_putc(struct vc_data *con, struct display *d, int c, int y, int x)
-{
-	struct fb_info_promfb *fb = promfbinfod(d);
-	unsigned short *dst;
-
-	dst = fb->data + y * d->line_length + x;
-	if (*dst != (c & 0xffff)) {
-		*dst = c & 0xffff;
-
-		prom_start(fb, d);
-
-		if (fb->curx != x || fb->cury != y) {
-			prom_printf("\033[%d;%dH", y + 1, x + 1);
-			fb->curx = x;
-			fb->cury = y;
-		}
-
-		if (x == fb->maxx && y == fb->maxy)
-			/* Sorry */ return;
-
-		if (c & 0x0800)
-			prom_printf("\033[7m%c\033[m", c);
-		else
-			prom_putchar(c);
-
-		prom_stop(fb, d);
-	}
-}
-
-static void
-fbcon_prom_putcs(struct vc_data *con, struct display *d,
-		 const unsigned short *s, int count, int y, int x)
-{
-	struct fb_info_promfb *fb = promfbinfod(d);
-	unsigned short *dst;
-	unsigned short attr = *s;
-	int i;
-
-	dst = fb->data + y * d->line_length + x;
-
-	prom_start(fb, d);
-
-	if (attr & 0x0800)
-		prom_printf("\033[7m");
-
-	for (i = 0; i < count; i++) {
-		if (*dst != *s) {
-			*dst = *s;
-
-			if (fb->curx != x + i || fb->cury != y) {
-				prom_printf("\033[%d;%dH", y + 1, x + i + 1);
-				fb->curx = x + i;
-				fb->cury = y;
-			}
-
-			if (fb->curx == fb->maxx && fb->cury == fb->maxy)
-				/* Sorry */ goto out;
-
-			prom_putchar(*s);
-
-			if (i < count - 1)
-				fb->curx++;
-		}
-		dst++;
-		s++;
-	}
-out:
-	if (attr & 0x0800)
-		prom_printf("\033[m");
-
-	prom_stop(fb, d);
-}
-
-static void
-fbcon_prom_clear(struct vc_data *con, struct display *d, int sy, int sx,
-		 int h, int w)
-{
-	int x, y;
-
-	for (y = sy; y < sy + h; y++)
-		for (x = sx; x < sx + w; x++)
-			fbcon_prom_putc(con, d, con->vc_video_erase_char, y, x);
-}
-
-static void
-fbcon_prom_bmove(struct display *d, int sy, int sx, int dy, int dx,
-		 int h, int w)
-{
-	struct fb_info_promfb *fb = promfbinfod(d);
-	int linesize = d->next_line;
-	unsigned short *src, *dst;
-	int x, y;
-
-	if (dx == 0 && sx == 0 && dy == 0 && sy == 1 &&
-	    w == linesize && h == fb->maxy) {
-		memcpy(fb->data, fb->data + linesize, 2 * linesize * fb->maxy);
-		prom_start(fb, d);
-		prom_printf("\033[%d;%dH", fb->maxy + 1, fb->maxx + 1);
-		prom_putchar(*(fb->data + linesize * fb->maxy + fb->maxx));
-		fb->curx = 0;
-		fb->cury = fb->maxy;
-		prom_stop(fb, d);
-	} else if (dy < sy || (dy == sy && dx < sx)) {
-		src = fb->data + sy * linesize + sx;
-		dst = fb->data + dy * linesize + dx;
-		for (y = dy; y < dy + h; y++) {
-			for (x = dx; x < dx + w; x++) {
-				if (*src != *dst)
-					fbcon_prom_putc(d->conp, d, *src, y, x);
-				src++;
-				dst++;
-			}
-		}
-	} else {
-		src = fb->data + (sy + h - 1) * linesize + sx + w - 1;
-		dst = fb->data + (dy + h - 1) * linesize + dx + w - 1;
-		for (y = dy + h - 1; y >= dy; y--) {
-			for (x = dx + w - 1; x >= dx; x--) {
-				if (*src != *dst)
-					fbcon_prom_putc(d->conp, d, *src, y, x);
-				src--;
-				dst--;
-			}
-		}
-	}
-}
-
-static void
-fbcon_prom_revc(struct display *d, int x, int y)
-{
-	struct fb_info_promfb *fb = promfbinfod(d);
-	unsigned short *dst = fb->data + y * d->next_line + x;
-	unsigned short val = *dst ^ 0x0800;
-
-	fbcon_prom_putc(d->conp, d, val, y, x);
-}
-
-static void
-fbcon_prom_cursor(struct display *d, int mode, int x, int y)
-{
-	struct fb_info_promfb *fb = promfbinfod(d);
-
-	switch (mode) {
-		case CM_ERASE:
-			break;
-
-		case CM_MOVE:
-		case CM_DRAW:
-			prom_start(fb, d);
-			if (fb->curx != x || fb->cury != y) {
-				prom_printf("\033[%d;%dH", y + 1, x + 1);
-				fb->curx = x;
-				fb->cury = y;
-			}
-			break;
-	}
-}
-
-static struct display_switch fbcon_promfb = {
-	fbcon_prom_setup,
-	fbcon_prom_bmove,
-	fbcon_prom_clear,
-	fbcon_prom_putc,
-	fbcon_prom_putcs,
-	fbcon_prom_revc,
-	fbcon_prom_cursor
-};
-
-
-struct promfb_size {
-	int xres, yres;
-	int width, height;
-	int x_margin, y_margin;
-} promfb_sizes[] __initdata = {
-	{ 1024, 768, 80, 34, 32, 10 },
-	{ 80 * PROM_FONT_WIDTH, 24 * PROM_FONT_HEIGHT, 80, 24, 0, 0 },
-	{ 0 }
-};
-
-__initfunc(void promfb_init(void))
-{
-	extern int con_is_present(void);
-	struct fb_info_promfb *fb;
-	struct fb_fix_screeninfo *fix;
-	struct fb_var_screeninfo *var;
-	struct display *disp;
-	struct promfb_size *size;
-	int i, w, h;
-
-	if (!con_is_present())
-		return;
-
-	fb = kmalloc(sizeof(struct fb_info_promfb), GFP_ATOMIC);
-	if (!fb) {
-		prom_printf("Could not allocate promfb structure\n");
-		return;
-	}
-
-	memset(fb, 0, sizeof(struct fb_info_promfb));
-	fix = &fb->fix;
-	var = &fb->var;
-	disp = &fb->disp;
-
-	fb->node = prom_inst2pkg(prom_stdout);
-	w = prom_getintdefault(fb->node, "width", 80 * PROM_FONT_WIDTH);
-	h = prom_getintdefault(fb->node, "height", 24 * PROM_FONT_HEIGHT);
-
-	size = promfb_sizes;
-	while (size->xres) {
-		if (size->xres == w && size->yres == h)
-			break;
-		size++;
-	}
-	if (!size->xres) {
-		size->xres = w;
-		size->yres = h;
-		size->width = w / PROM_FONT_WIDTH;
-		size->height = h / PROM_FONT_HEIGHT;
-		size->x_margin = (w - size->width * PROM_FONT_WIDTH) >> 1;
-		size->y_margin = (h - size->width * PROM_FONT_HEIGHT) >> 1;
-	}
-
-	fb->data = kmalloc(2 * size->width * size->height, GFP_ATOMIC);
-	if (!fb->data) {
-		kfree(fb);
-		return;
-	}
-
-	fb->maxx = size->width - 1;
-	fb->maxy = size->height - 1;
-
-	strcpy(fb->info.modename, "PROM pseudo");
-	fb->info.node = -1;
-	fb->info.fbops = &promfb_ops;
-	fb->info.disp = disp;
-	fb->info.fontname[0] = '\0';
-	fb->info.changevar = NULL;
-	fb->info.switch_con = promfbcon_switch;
-	fb->info.updatevar = promfbcon_updatevar;
-	fb->info.blank = promfbcon_blank;
-
-	strcpy(fix->id, "PROM pseudo");
-	fix->type = FB_TYPE_TEXT;
-	fix->type_aux = FB_AUX_TEXT_MDA;
-	fix->visual = FB_VISUAL_MONO01;
-	fix->xpanstep = 0;
-	fix->ypanstep = 16;
-	fix->ywrapstep = 0;
-	fix->line_length = size->width;
-	fix->accel = FB_ACCEL_NONE;
-
-	var->xres = size->width * 8;
-	var->yres = size->height * 16;
-	var->xres_virtual = var->xres;
-	var->yres_virtual = var->yres;
-	var->bits_per_pixel = 1;
-	var->xoffset = 0;
-	var->yoffset = 0;
-	var->activate = 0;
-	var->height = -1;
-	var->width = -1;
-	var->accel_flags = FB_ACCELF_TEXT;
-	var->vmode = FB_VMODE_NONINTERLACED;
-
-	disp->var = *var;
-	disp->visual = fix->visual;
-	disp->type = fix->type;
-	disp->type_aux = fix->type_aux;
-	disp->ypanstep = fix->ypanstep;
-	disp->ywrapstep = fix->ywrapstep;
-	disp->line_length = fix->line_length;
-	disp->can_soft_blank = 1;
-	disp->dispsw = &fbcon_promfb;
-
-	for (i = 0; i < fb->maxy * size->width + fb->maxx; i++)
-		fb->data[i] = ' ';
-	prom_printf("\033[H\033[J");
-
-	if (register_framebuffer(&fb->info) < 0) {
-		kfree(fb->data);
-		kfree(fb);
-		return;
-	}
-
-	printk("fb%d: %s frame buffer device\n", GET_FB_IDX(fb->info.node),
-	       fb->info.modename);
-	MOD_INC_USE_COUNT;
-}
-
-__initfunc(void promfb_setup(char *options, int *ints)) {}
-
-void
-promfb_cleanup(struct fb_info *info)
-{
-	struct fb_info_promfb *fb = promfbinfo(info);
-
-	unregister_framebuffer(info);
-	kfree(fb->data);
-	kfree(fb);
-}
-
-#ifdef MODULE
-int init_module(void)
-{
-	promfb_init();
-	return 0
-}
-
-void cleanup_module(void)
-{
-	promfb_cleanup();
-}
-#endif /* MODULE */
-