Hi!
Nice thing about running fbcon on hercules is that it is the only way
to change font on these beasts.
Here it is:
Pavel
--- clean/drivers/video/Makefile Fri Mar 3 22:52:12 2000
+++ linux/drivers/video/Makefile Fri Mar 3 22:40:18 2000
@@ -21,7 +21,7 @@
fbcon-iplan2p8.o fbcon-vga-planes.o fbcon-cfb16.o \
fbcon-cfb2.o fbcon-cfb24.o fbcon-cfb32.o fbcon-cfb4.o \
fbcon-cfb8.o fbcon-mac.o fbcon-mfb.o fbcon-vga8-planes.o \
- matrox/matroxfb.o cyber2000fb.o
+ matrox/matroxfb.o cyber2000fb.o fbcon-hga.o
# Object file lists.
obj-y :=
@@ -85,9 +85,6 @@
obj-$(CONFIG_FB_CGFOURTEEN) += cgfourteenfb.o sbusfb.o
obj-$(CONFIG_FB_P9100) += p9100fb.o sbusfb.o
obj-$(CONFIG_FB_LEO) += leofb.o sbusfb.o
-obj-$(CONFIG_FB_SUN3) += sun3fb.o
-obj-$(CONFIG_FB_BWTWO) += bwtwofb.o
-obj-$(CONFIG_FB_VIRTUAL) += vfb.o
ifeq ($(CONFIG_FB_MATROX),y)
SUB_DIRS += matrox
@@ -109,6 +106,11 @@
endif
endif
+obj-$(CONFIG_FB_SUN3) += sun3fb.o
+obj-$(CONFIG_FB_BWTWO) += bwtwofb.o
+obj-$(CONFIG_FB_HGA) += hgafb.o
+obj-$(CONFIG_FB_VIRTUAL) += vfb.o
+
# Generic Low Level Drivers
obj-$(CONFIG_FBCON_AFB) += fbcon-afb.o
@@ -126,6 +128,7 @@
obj-$(CONFIG_FBCON_MAC) += fbcon-mac.o
obj-$(CONFIG_FBCON_MFB) += fbcon-mfb.o
obj-$(CONFIG_FBCON_VGA) += fbcon-vga.o
+obj-$(CONFIG_FBCON_HGA) += fbcon-hga.o
# Extract lists of the multi-part drivers.
# The 'int-*' lists are the intermediate files used to build the multi's.
--- /dev/null Sun Jun 27 13:16:23 1999
+++ linux/drivers/video/fbcon-hga.c Mon Jan 24 23:29:40 2000
@@ -0,0 +1,245 @@
+/*
+ * linux/drivers/video/fbcon-hga.c -- Low level frame buffer operations for
+ * the Hercules graphics adaptor
+ *
+ * Created 25 Nov 1999 by Ferenc Bakonyi (fero@drama.obuda.kando.hu)
+ * Based on fbcon-mfb.c by Geert Uytterhoeven
+ *
+ * History:
+ *
+ * - Revision 0.1.0 (6 Dec 1999): comment changes
+ * - First release (25 Nov 1999)
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+
+#include <linux/module.h>
+#include <linux/tty.h>
+#include <linux/console.h>
+#include <linux/string.h>
+#include <linux/fb.h>
+
+#include <video/fbcon.h>
+#include <video/fbcon-hga.h>
+
+#if 0
+#define DPRINTK(args...) printk(KERN_DEBUG __FILE__": " ##args)
+#else
+#define DPRINTK(args...)
+#endif
+
+#define HGA_ROWADDR(row) ((row%4)*8192 + (row>>2)*90)
+
+ /*
+ * Hercules monochrome
+ */
+
+static inline u8* rowaddr(struct display *p, u_int row)
+{
+ return p->screen_base + HGA_ROWADDR(row);
+}
+
+void fbcon_hga_setup(struct display *p)
+{
+ DPRINTK("fbcon_hga_setup: ll:%d\n", (int)p->line_length);
+
+ p->next_line = p->line_length;
+ p->next_plane = 0;
+}
+
+void fbcon_hga_bmove(struct display *p, int sy, int sx, int dy, int dx,
+ int height, int width)
+{
+ u8 *src, *dest;
+ u_int rows, y1, y2;
+
+#if 0
+ if (sx == 0 && dx == 0 && width == p->next_line) {
+ src = p->screen_base+sy*fontheight(p)*width;
+ dest = p->screen_base+dy*fontheight(p)*width;
+ fb_memmove(dest, src, height*fontheight(p)*width);
+ } else
+#endif
+ if (dy <= sy) {
+ y1 = sy*fontheight(p);
+ y2 = dy*fontheight(p);
+ for (rows = height*fontheight(p); rows--; ) {
+ src = rowaddr(p, y1)+sx;
+ dest = rowaddr(p, y2)+dx;
+ fb_memmove(dest, src, width);
+ y1++;
+ y2++;
+ }
+ } else {
+ y1 = (sy+height)*fontheight(p)-1;
+ y2 = (dy+height)*fontheight(p)-1;
+ for (rows = height*fontheight(p); rows--;) {
+ src = rowaddr(p, y1)+sx;
+ dest = rowaddr(p, y2)+dx;
+ fb_memmove(dest, src, width);
+ y1--;
+ y2--;
+ }
+ }
+}
+
+void fbcon_hga_clear(struct vc_data *conp, struct display *p, int sy, int sx,
+ int height, int width)
+{
+ u8 *dest;
+ u_int rows, y;
+ int inverse = conp ? attr_reverse(p,conp->vc_video_erase_char) : 0;
+
+ DPRINTK("fbcon_hga_clear: sx:%d, sy:%d, height:%d, width:%d\n", sx, sy, height, width);
+
+ y = sy*fontheight(p);
+#if 0
+ if (sx == 0 && width == p->next_line) {
+ if (inverse) {
+ fb_memset255(dest, height*fontheight(p)*width);
+ } else {
+ fb_memclear(dest, height*fontheight(p)*width);
+ }
+ } else
+#endif
+ for (rows = height*fontheight(p); rows--; y++) {
+ dest = rowaddr(p, y)+sx;
+ if (inverse) {
+ fb_memset255(dest, width);
+ } else {
+ fb_memclear(dest, width);
+ }
+ }
+}
+
+void fbcon_hga_putc(struct vc_data *conp, struct display *p, int c, int yy,
+ int xx)
+{
+ u8 *dest, *cdat;
+ u_int rows, y, bold, revs, underl;
+ u8 d;
+
+ cdat = p->fontdata+(c&p->charmask)*fontheight(p);
+ bold = attr_bold(p, c);
+ revs = attr_reverse(p, c);
+ underl = attr_underline(p, c);
+ y = yy*fontheight(p);
+
+ for (rows = fontheight(p); rows--; y++) {
+ d = *cdat++;
+ if (underl && !rows)
+ d = 0xff;
+ else if (bold)
+ d |= d>>1;
+ if (revs)
+ d = ~d;
+ dest = rowaddr(p, y)+xx;
+ *dest = d;
+ }
+}
+
+void fbcon_hga_putcs(struct vc_data *conp, struct display *p,
+ const unsigned short *s, int count, int yy, int xx)
+{
+ u8 *dest, *cdat;
+ u_int rows, y, y0, bold, revs, underl;
+ u8 d;
+ u16 c;
+
+ bold = attr_bold(p,scr_readw(s));
+ revs = attr_reverse(p,scr_readw(s));
+ underl = attr_underline(p,scr_readw(s));
+ y0 = yy*fontheight(p);
+
+ while (count--) {
+ c = scr_readw(s++) & p->charmask;
+ cdat = p->fontdata+c*fontheight(p);
+ y = y0;
+ for (rows = fontheight(p); rows--; y++) {
+ d = *cdat++;
+ if (underl && !rows)
+ d = 0xff;
+ else if (bold)
+ d |= d>>1;
+ if (revs)
+ d = ~d;
+ dest = rowaddr(p, y)+xx;
+ *dest = d;
+ }
+ xx++;
+ }
+}
+
+void fbcon_hga_revc(struct display *p, int xx, int yy)
+{
+ u8 *dest;
+ u_int rows, y;
+
+ y = yy*fontheight(p);
+ for (rows = fontheight(p); rows--; y++) {
+ dest = rowaddr(p, y)+xx;
+ *dest = ~*dest;
+ }
+}
+
+void fbcon_hga_clear_margins(struct vc_data *conp, struct display *p,
+ int bottom_only)
+{
+ u8 *dest;
+ u_int height, y;
+ int inverse = conp ? attr_reverse(p,conp->vc_video_erase_char) : 0;
+
+ DPRINTK("fbcon_hga_clear_margins: enter\n");
+
+ /* No need to handle right margin. */
+
+ y = conp->vc_rows * fontheight(p);
+ for (height = p->var.yres - y; height-- > 0; y++) {
+ DPRINTK("fbcon_hga_clear_margins: y:%d, height:%d\n", y, height);
+ dest = rowaddr(p, y);
+ if (inverse) {
+ fb_memset255(dest, p->next_line);
+ } else {
+ fb_memclear(dest, p->next_line);
+ }
+ }
+}
+
+
+ /*
+ * `switch' for the low level operations
+ */
+
+struct display_switch fbcon_hga = {
+ fbcon_hga_setup, fbcon_hga_bmove, fbcon_hga_clear, fbcon_hga_putc,
+ fbcon_hga_putcs, fbcon_hga_revc, NULL, NULL, fbcon_hga_clear_margins,
+ FONTWIDTH(8)
+};
+
+
+#ifdef MODULE
+int init_module(void)
+{
+ return 0;
+}
+
+void cleanup_module(void)
+{
+}
+#endif /* MODULE */
+
+
+ /*
+ * Visible symbols for modules
+ */
+
+EXPORT_SYMBOL(fbcon_hga);
+EXPORT_SYMBOL(fbcon_hga_setup);
+EXPORT_SYMBOL(fbcon_hga_bmove);
+EXPORT_SYMBOL(fbcon_hga_clear);
+EXPORT_SYMBOL(fbcon_hga_putc);
+EXPORT_SYMBOL(fbcon_hga_putcs);
+EXPORT_SYMBOL(fbcon_hga_revc);
+EXPORT_SYMBOL(fbcon_hga_clear_margins);
--- clean/drivers/video/fbcon.c Tue Feb 1 22:41:49 2000
+++ linux/drivers/video/fbcon.c Mon Jan 31 22:41:37 2000
@@ -2301,7 +2305,7 @@
}
#endif
#if defined(CONFIG_FBCON_MFB) || defined(CONFIG_FBCON_AFB) || \
- defined(CONFIG_FBCON_ILBM)
+ defined(CONFIG_FBCON_ILBM) || defined(CONFIG_FBCON_HGA)
if (depth == 1 && (p->type == FB_TYPE_PACKED_PIXELS ||
p->type == FB_TYPE_PLANES ||
@@ -2311,10 +2315,14 @@
unsigned char inverse = p->inverse || p->visual == FB_VISUAL_MONO01
? 0x00 : 0xff;
+ int is_hga = !strncmp(p->fb_info->modename, "HGA", 3);
/* can't use simply memcpy because need to apply inverse */
for( y1 = 0; y1 < LOGO_H; y1++ ) {
src = logo + y1*LOGO_LINE;
- dst = fb + y1*line + x/8;
+ if (is_hga)
+ dst = fb + (y1%4)*8192 + (y1>>2)*line + x/8;
+ else
+ dst = fb + y1*line + x/8;
for( x1 = 0; x1 < LOGO_LINE; ++x1 )
fb_writeb(fb_readb(src++) ^ inverse, dst++);
}
--- clean/drivers/video/fbmem.c Fri Mar 3 22:52:12 2000
+++ linux/drivers/video/fbmem.c Fri Mar 3 22:38:52 2000
@@ -85,6 +85,8 @@
extern int vesafb_setup(char*);
extern int vga16fb_init(void);
extern int vga16fb_setup(char*);
+extern int hgafb_init(void);
+extern int hgafb_setup(char*);
extern int matroxfb_init(void);
extern int matroxfb_setup(char*);
extern int hpfb_init(void);
@@ -195,6 +197,9 @@
#endif
#ifdef CONFIG_FB_VGA16
{ "vga16", vga16fb_init, vga16fb_setup },
+#endif
+#ifdef CONFIG_FB_HGA
+ { "hga", hgafb_init, hgafb_setup },
#endif
#ifdef CONFIG_FB_MATROX
{ "matrox", matroxfb_init, matroxfb_setup },
--- /dev/null Sun Jun 27 13:16:23 1999
+++ linux/drivers/video/hgafb.c Tue Jan 25 00:22:31 2000
@@ -0,0 +1,757 @@
+/*
+ * linux/drivers/video/hgafb.c -- Hercules graphics adaptor frame buffer device
+ *
+ * Created 25 Nov 1999 by Ferenc Bakonyi (fero@drama.obuda.kando.hu)
+ * Based on skeletonfb.c by Geert Uytterhoeven and
+ * mdacon.c by Andrew Apted
+ *
+ * History:
+ *
+ * - Revision 0.1.3 (22 Jan 2000): modified for the new fb_info structure
+ * screen is cleared after rmmod
+ * virtual resolutions
+ * kernel parameter 'video=hga:font:{fontname}'
+ * module parameter 'font={fontname}'
+ * module parameter 'nologo={0|1}'
+ * the most important: boot logo :)
+ * - Revision 0.1.0 (6 Dec 1999): faster scrolling and minor fixes
+ * - First release (25 Nov 1999)
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file README.legal in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/config.h>
+#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/fb.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+#include <asm/vga.h>
+#include <video/fbcon.h>
+#include <video/fbcon-hga.h>
+
+#ifdef MODULE
+
+#define INCLUDE_LINUX_LOGOBW
+#include <linux/linux_logo.h>
+
+#endif /* MODULE */
+
+#if 0
+#define DPRINTK(args...) printk(KERN_DEBUG __FILE__": " ##args)
+#else
+#define DPRINTK(args...)
+#endif
+
+#if 1
+#define CHKINFO(ret) if (info != &fb_info) { printk(KERN_DEBUG __FILE__": This should never happen, line:%d \n", __LINE__); return ret; }
+#else
+#define CHKINFO(ret)
+#endif
+
+/* Description of the hardware layout */
+
+static unsigned long hga_vram_base; /* Base of video memory */
+static unsigned long hga_vram_len; /* Size of video memory */
+
+#define HGA_TXT 0
+#define HGA_GFX 1
+
+static int hga_mode = -1; /* 0 = txt, 1 = gfx mode */
+
+static enum { TYPE_HERC, TYPE_HERCPLUS, TYPE_HERCCOLOR } hga_type;
+static char *hga_type_name;
+
+#define HGA_INDEX_PORT 0x3b4 /* Register select port */
+#define HGA_VALUE_PORT 0x3b5 /* Register value port */
+#define HGA_MODE_PORT 0x3b8 /* Mode control port */
+#define HGA_STATUS_PORT 0x3ba /* Status and Config port */
+#define HGA_GFX_PORT 0x3bf /* Graphics control port */
+
+/* HGA register values */
+
+#define HGA_CURSOR_BLINKING 0x00
+#define HGA_CURSOR_OFF 0x20
+#define HGA_CURSOR_SLOWBLINK 0x60
+
+#define HGA_MODE_GRAPHICS 0x02
+#define HGA_MODE_VIDEO_EN 0x08
+#define HGA_MODE_BLINK_EN 0x20
+#define HGA_MODE_GFX_PAGE1 0x80
+
+#define HGA_STATUS_HSYNC 0x01
+#define HGA_STATUS_VSYNC 0x80
+#define HGA_STATUS_VIDEO 0x08
+
+#define HGA_CONFIG_COL132 0x08
+#define HGA_GFX_MODE_EN 0x01
+#define HGA_GFX_PAGE_EN 0x02
+
+/* Framebuffer driver structures */
+
+static struct fb_var_screeninfo hga_default_var = {
+ 720, 348, /* xres, yres */
+ 720, 348, /* xres_virtual, yres_virtual */
+ 0, 0, /* xoffset, yoffset */
+ 1, /* bits_per_pixel */
+ 0, /* grayscale */
+ {0, 1, 0}, /* red */
+ {0, 1, 0}, /* green */
+ {0, 1, 0}, /* blue */
+ {0, 0, 0}, /* transp */
+ 0, /* nonstd (FB_NONSTD_HGA ?) */
+ 0, /* activate */
+ -1, -1, /* height, width */
+ 0, /* accel_flags */
+ /* pixclock */
+ /* left_margin, right_margin */
+ /* upper_margin, lower_margin */
+ /* hsync_len, vsync_len */
+ /* sync */
+ /* vmode */
+};
+
+static struct fb_fix_screeninfo hga_fix = {
+ "HGA", /* id */
+ (unsigned long) NULL, /* smem_start */
+ 0, /* smem_len */
+ FB_TYPE_PACKED_PIXELS, /* type (not sure) */
+ 0, /* type_aux (not sure) */
+ FB_VISUAL_MONO10, /* visual */
+ 8, /* xpanstep */
+ 8, /* ypanstep */
+ 0, /* ywrapstep */
+ 90, /* line_length */
+ 0, /* mmio_start */
+ 0, /* mmio_len */
+ FB_ACCEL_NONE /* accel */
+};
+
+static struct fb_info fb_info;
+static struct display disp;
+
+/* Don't assume that tty1 will be the initial current console. */
+static int currcon = -1;
+
+#ifdef MODULE
+static char *font = NULL;
+static int nologo = 0;
+#endif
+
+/* -------------------------------------------------------------------------
+ *
+ * Low level hardware functions
+ *
+ * ------------------------------------------------------------------------- */
+
+static void write_hga_b(unsigned int val, unsigned char reg)
+{
+ unsigned long flags;
+
+ save_flags(flags); cli();
+
+ outb_p(reg, HGA_INDEX_PORT);
+ outb_p(val, HGA_VALUE_PORT);
+
+ restore_flags(flags);
+}
+
+static void write_hga_w(unsigned int val, unsigned char reg)
+{
+ unsigned long flags;
+
+ save_flags(flags); cli();
+
+ outb_p(reg, HGA_INDEX_PORT); outb_p(val >> 8, HGA_VALUE_PORT);
+ outb_p(reg+1, HGA_INDEX_PORT); outb_p(val & 0xff, HGA_VALUE_PORT);
+
+ restore_flags(flags);
+}
+
+static int test_hga_b(unsigned char val, unsigned char reg)
+{
+ unsigned long flags;
+
+ save_flags(flags); cli();
+
+ outb_p(reg, HGA_INDEX_PORT);
+ outb (val, HGA_VALUE_PORT);
+
+ udelay(20); val = (inb_p(HGA_VALUE_PORT) == val);
+
+ restore_flags(flags);
+
+ return val;
+}
+
+static void hga_clear_screen(void)
+{
+ if (hga_mode == HGA_TXT)
+ memset((char *)hga_vram_base, ' ', hga_vram_len);
+ else if (hga_mode == HGA_GFX)
+ memset((char *)hga_vram_base, 0, hga_vram_len);
+}
+
+
+static void hga_txt_mode(void)
+{
+ outb_p(HGA_MODE_VIDEO_EN | HGA_MODE_BLINK_EN, HGA_MODE_PORT);
+ outb_p(0x00, HGA_GFX_PORT);
+ outb_p(0x00, HGA_STATUS_PORT);
+
+ write_hga_b(0x61, 0x00); /* horizontal total */
+ write_hga_b(0x50, 0x01); /* horizontal displayed */
+ write_hga_b(0x52, 0x02); /* horizontal sync pos */
+ write_hga_b(0x0f, 0x03); /* horizontal sync width */
+
+ write_hga_b(0x19, 0x04); /* vertical total */
+ write_hga_b(0x06, 0x05); /* vertical total adjust */
+ write_hga_b(0x19, 0x06); /* vertical displayed */
+ write_hga_b(0x19, 0x07); /* vertical sync pos */
+
+ write_hga_b(0x02, 0x08); /* interlace mode */
+ write_hga_b(0x0d, 0x09); /* maximum scanline */
+ write_hga_b(0x0c, 0x0a); /* cursor start */
+ write_hga_b(0x0d, 0x0b); /* cursor end */
+
+ write_hga_w(0x0000, 0x0c); /* start address */
+ write_hga_w(0x0000, 0x0e); /* cursor location */
+
+ hga_mode = HGA_TXT;
+}
+
+static void hga_gfx_mode(void)
+{
+ outb_p(0x00, HGA_STATUS_PORT);
+ outb_p(HGA_GFX_MODE_EN, HGA_GFX_PORT);
+ outb_p(HGA_MODE_VIDEO_EN | HGA_MODE_GRAPHICS, HGA_MODE_PORT);
+
+ write_hga_b(0x35, 0x00); /* horizontal total */
+ write_hga_b(0x2d, 0x01); /* horizontal displayed */
+ write_hga_b(0x2e, 0x02); /* horizontal sync pos */
+ write_hga_b(0x07, 0x03); /* horizontal sync width */
+
+ write_hga_b(0x5b, 0x04); /* vertical total */
+ write_hga_b(0x02, 0x05); /* vertical total adjust */
+ write_hga_b(0x57, 0x06); /* vertical displayed */
+ write_hga_b(0x57, 0x07); /* vertical sync pos */
+
+ write_hga_b(0x02, 0x08); /* interlace mode */
+ write_hga_b(0x03, 0x09); /* maximum scanline */
+ write_hga_b(0x00, 0x0a); /* cursor start */
+ write_hga_b(0x00, 0x0b); /* cursor end */
+
+ write_hga_w(0x0000, 0x0c); /* start address */
+ write_hga_w(0x0000, 0x0e); /* cursor location */
+
+ hga_mode = HGA_GFX;
+}
+
+#ifdef MODULE
+static void hga_show_logo(void)
+{
+ int x, y;
+ char *dest = (char *)hga_vram_base;
+ char *logo = linux_logo_bw;
+ for (y = 134; y < 134 + 80 ; y++) /* this needs some cleanup */
+ for (x = 0; x < 10 ; x++)
+ *(dest + (y%4)*8192 + (y>>2)*90 + x + 40) = ~*(logo++);
+}
+#endif /* MODULE */
+
+static void hga_pan(unsigned int xoffset, unsigned int yoffset)
+{
+ unsigned int base;
+ base = (yoffset / 8) * 90 + xoffset;
+ write_hga_w(base, 0x0c); /* start address */
+ DPRINTK("hga_pan: base:%d\n", base);
+}
+
+static int hga_card_detect(void)
+{
+ int count=0;
+ u16 *p, p_save;
+ u16 *q, q_save;
+
+ hga_vram_base = VGA_MAP_MEM(0xb0000);
+ hga_vram_len = 0x08000;
+
+ if (!request_mem_region(hga_vram_base, hga_vram_len, "hgafb")) {
+ printk(KERN_ERR "hgafb: cannot reserve video memory at 0x%lX\n",
+ hga_vram_base);
+ return 0;
+ }
+ if (!request_region(0x3b0, 16, "hgafb")) {
+ printk(KERN_ERR "hgafb: cannot reserve io ports\n");
+ }
+
+ /* do a memory check */
+
+ p = (u16 *) hga_vram_base;
+ q = (u16 *) (hga_vram_base + 0x01000);
+
+ p_save = scr_readw(p); q_save = scr_readw(q);
+
+ scr_writew(0xaa55, p); if (scr_readw(p) == 0xaa55) count++;
+ scr_writew(0x55aa, p); if (scr_readw(p) == 0x55aa) count++;
+ scr_writew(p_save, p);
+
+ if (count != 2) {
+ return 0;
+ }
+
+ /* Ok, there is definitely a card registering at the correct
+ * memory location, so now we do an I/O port test.
+ */
+
+ if (!test_hga_b(0x66, 0x0f)) { /* cursor low register */
+ return 0;
+ }
+ if (!test_hga_b(0x99, 0x0f)) { /* cursor low register */
+ return 0;
+ }
+
+ /* See if the card is a Hercules, by checking whether the vsync
+ * bit of the status register is changing. This test lasts for
+ * approximately 1/10th of a second.
+ */
+
+ p_save = q_save = inb_p(HGA_STATUS_PORT) & HGA_STATUS_VSYNC;
+
+ for (count=0; count < 50000 && p_save == q_save; count++) {
+ q_save = inb(HGA_STATUS_PORT) & HGA_STATUS_VSYNC;
+ udelay(2);
+ }
+
+ if (p_save != q_save) {
+ switch (inb_p(HGA_STATUS_PORT) & 0x70) {
+ case 0x10:
+ hga_type = TYPE_HERCPLUS;
+ hga_type_name = "HerculesPlus";
+ break;
+ case 0x50:
+ hga_type = TYPE_HERCCOLOR;
+ hga_type_name = "HerculesColor";
+ break;
+ default:
+ hga_type = TYPE_HERC;
+ hga_type_name = "Hercules";
+ break;
+ }
+ }
+ return 1;
+}
+
+/* ------------------------------------------------------------------------- *
+ *
+ * dispsw functions
+ *
+ * ------------------------------------------------------------------------- */
+
+
+ /*
+ * Open/Release the frame buffer device
+ */
+
+static int hgafb_open(struct fb_info *info, int user)
+{
+ /* Nothing, only a usage count for the moment */
+ MOD_INC_USE_COUNT;
+ return 0;
+}
+
+static int hgafb_release(struct fb_info *info, int user)
+{
+ MOD_DEC_USE_COUNT;
+ return 0;
+}
+
+
+ /*
+ * Get the Fixed Part of the Display
+ */
+
+int hga_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *info)
+{
+ CHKINFO(-EINVAL);
+ DPRINTK("hga_get_fix: con:%d, info:%x, fb_info:%x\n", con, (unsigned)info, (unsigned)&fb_info);
+
+ *fix = info->fix;
+ return 0;
+}
+
+
+ /*
+ * Get the User Defined Part of the Display
+ */
+
+int hga_get_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+{
+ CHKINFO(-EINVAL);
+ DPRINTK("hga_get_var: con:%d, info:%x, fb_info:%x\n", con, (unsigned)info, (unsigned)&fb_info);
+
+ *var = info->var;
+ return 0;
+}
+
+ /*
+ * Set the User Defined Part of the Display
+ * This is the most mystical function (at least for me).
+ * What is the exact specification of xxx_set_var?
+ * Should it handle xoffset, yoffset? Should it do pannig?
+ * What does vmode mean?
+ */
+
+int hga_set_var(struct fb_var_screeninfo *var, int con, struct fb_info *info)
+{
+ CHKINFO(-EINVAL);
+ DPRINTK("hga_set_var: con:%d, activate:%x, info:0x%x, fb_info:%x\n", con, var->activate, (unsigned)info, (unsigned)&fb_info);
+
+ if (var->xres != 720 || var->yres != 348 ||
+ var->xres_virtual != 720 ||
+ var->yres_virtual < 348 || var->yres_virtual > 348 + 16 ||
+ var->bits_per_pixel != 1 || var->grayscale != 0) {
+ return -EINVAL;
+ }
+ if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW) {
+ info->var = *var;
+ if (info->changevar)
+ (*info->changevar)(con);
+ }
+ return 0;
+}
+
+
+ /*
+ * Get the Colormap
+ */
+
+static int hga_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
+ u_int *transp, struct fb_info *info)
+{
+ if (regno == 0) {
+ *red = *green = *blue = 0x0000;
+ *transp = 0;
+ } else if (regno == 1) {
+ *red = *green = *blue = 0xaaaa;
+ *transp = 0;
+ } else
+ return 1;
+ return 0;
+}
+
+int hga_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+ struct fb_info *info)
+{
+ CHKINFO(-EINVAL);
+ DPRINTK("hga_get_cmap: con:%d\n", con);
+ return fb_get_cmap(cmap, kspc, hga_getcolreg, info);
+}
+
+ /*
+ * Set the Colormap
+ */
+
+static int hga_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int transp, struct fb_info *info)
+{
+ if (regno > 1)
+ return 1;
+ return 0;
+}
+
+int hga_set_cmap(struct fb_cmap *cmap, int kspc, int con,
+ struct fb_info *info)
+{
+ CHKINFO(-EINVAL);
+ DPRINTK("hga_set_cmap: con:%d\n", con);
+ return fb_set_cmap(cmap, kspc, hga_setcolreg, info);
+}
+
+ /*
+ * Pan or Wrap the Display
+ *
+ * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
+ */
+
+int hga_pan_display(struct fb_var_screeninfo *var, int con,
+ struct fb_info *info)
+{
+ CHKINFO(-EINVAL);
+ DPRINTK("pan_disp: con:%d, wrap:%d, xoff:%d, yoff:%d\n", con, var->vmode & FB_VMODE_YWRAP, var->xoffset, var->yoffset);
+
+ if (var->vmode & FB_VMODE_YWRAP) {
+ if (var->yoffset < 0 ||
+ var->yoffset >= info->var.yres_virtual ||
+ var->xoffset)
+ return -EINVAL;
+ } else {
+ if (var->xoffset + var->xres > info->var.xres_virtual
+ || var->yoffset + var->yres > info->var.yres_virtual
+ || var->yoffset % 8)
+ return -EINVAL;
+ }
+
+ hga_pan(var->xoffset, var->yoffset);
+
+ info->var.xoffset = var->xoffset;
+ info->var.yoffset = var->yoffset;
+ if (var->vmode & FB_VMODE_YWRAP)
+ info->var.vmode |= FB_VMODE_YWRAP;
+ else
+ info->var.vmode &= ~FB_VMODE_YWRAP;
+ return 0;
+}
+
+
+ /*
+ * Frame Buffer Specific ioctls
+ */
+
+int hga_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
+ unsigned long arg, int con, struct fb_info *info)
+{
+ CHKINFO(-EINVAL);
+ DPRINTK("hga_ioctl: con:%d\n", con);
+ return -EINVAL;
+}
+
+
+
+
+static struct fb_ops hgafb_ops = {
+ hgafb_open, hgafb_release, hga_get_fix, hga_get_var, hga_set_var,
+ hga_get_cmap, hga_set_cmap, hga_pan_display, hga_ioctl
+};
+
+
+/* ------------------------------------------------------------------------- *
+ *
+ * Functions in fb_info
+ *
+ * ------------------------------------------------------------------------- */
+
+static int hgafbcon_switch(int con, struct fb_info *info)
+{
+ CHKINFO(-EINVAL);
+ DPRINTK("hgafbcon_switch: currcon:%d, con:%d, info:%x, fb_info:%x\n", currcon, con, (unsigned)info, (unsigned)&fb_info);
+
+ /* Save the colormap and video mode */
+#if 0 /* Not necessary in hgafb, we use fixed colormap */
+ fb_copy_cmap(&info->cmap, &fb_display[currcon].cmap, 0);
+#endif
+
+ if (currcon != -1) /* this check is absolute necessary! */
+ memcpy(&fb_display[currcon].var, &info->var,
+ sizeof(struct fb_var_screeninfo));
+
+ /* Install a new colormap and change the video mode. By default fbcon
+ * sets all the colormaps and video modes to the default values at
+ * bootup.
+ */
+#if 0
+ fb_copy_cmap(&fb_display[con].cmap, &info->cmap, 0);
+ fb_set_cmap(&info->cmap, 1, hga_setcolreg, info);
+#endif
+
+ memcpy(&info->var, &fb_display[con].var,
+ sizeof(struct fb_var_screeninfo));
+ /* hga_set_var(&info->var, con, &fb_info); is it necessary? */
+ currcon = con;
+
+ /* Hack to work correctly with XF86_Mono */
+ hga_gfx_mode();
+ return 0;
+}
+
+static int hgafbcon_updatevar(int con, struct fb_info *info)
+{
+ CHKINFO(-EINVAL);
+ DPRINTK("hga_update_var: con:%d, info:%x, fb_info:%x\n", con, (unsigned)info, (unsigned)&fb_info);
+ return (con < 0) ? -EINVAL : hga_pan_display(&fb_display[con].var, con, info);
+}
+
+static void hgafbcon_blank(int blank_mode, struct fb_info *info)
+{
+ /*
+ * Blank the screen if blank_mode != 0, else unblank.
+ * Implements VESA suspend and powerdown modes on hardware
+ * that supports disabling hsync/vsync:
+ * blank_mode == 2: suspend vsync
+ * blank_mode == 3: suspend hsync
+ * blank_mode == 4: powerdown
+ */
+
+ CHKINFO( );
+ DPRINTK("hga_blank: blank_mode:%d, info:%x, fb_info:%x\n", blank_mode, (unsigned)info, (unsigned)&fb_info);
+
+ if (blank_mode) {
+ outb_p(0x00, HGA_MODE_PORT); /* disable video */
+ } else {
+ outb_p(HGA_MODE_VIDEO_EN | HGA_MODE_GRAPHICS, HGA_MODE_PORT);
+ }
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+ /*
+ * Initialization
+ */
+
+int __init hgafb_init(void)
+{
+ if (! hga_card_detect()) {
+ printk(KERN_ERR "hgafb: HGA card not detected.\n");
+ return -EINVAL;
+ }
+
+ printk(KERN_INFO "hgafb: %s with %ldK of memory detected.\n",
+ hga_type_name, hga_vram_len/1024);
+
+ hga_gfx_mode();
+ hga_clear_screen();
+#ifdef MODULE
+ if (!nologo) hga_show_logo();
+#endif /* MODULE */
+
+ hga_fix.smem_start = hga_vram_base;
+ hga_fix.smem_len = hga_vram_len;
+
+ disp.var = hga_default_var;
+/* disp.cmap = ???; */
+ disp.screen_base = (char*)hga_fix.smem_start;
+ disp.visual = hga_fix.visual;
+ disp.type = hga_fix.type;
+ disp.type_aux = hga_fix.type_aux;
+ disp.ypanstep = hga_fix.ypanstep;
+ disp.ywrapstep = hga_fix.ywrapstep;
+ disp.line_length = hga_fix.line_length;
+ disp.can_soft_blank = 1;
+ disp.inverse = 0;
+ disp.dispsw = &fbcon_hga;
+ disp.dispsw_data = NULL;
+
+ disp.scrollmode = SCROLL_YREDRAW;
+
+ strcpy (fb_info.modename, hga_fix.id);
+ fb_info.node = -1;
+ fb_info.flags = FBINFO_FLAG_DEFAULT;
+/* fb_info.open = ??? */
+ fb_info.var = hga_default_var;
+ fb_info.fix = hga_fix;
+ fb_info.monspecs.hfmin = 0;
+ fb_info.monspecs.hfmax = 0;
+ fb_info.monspecs.vfmin = 10000;
+ fb_info.monspecs.vfmax = 10000;
+ fb_info.monspecs.dpms = 0;
+ fb_info.fbops = &hgafb_ops;
+ fb_info.screen_base = (char *)hga_fix.smem_start;
+ fb_info.disp = &disp;
+/* fb_info.display_fg = ??? */
+/* fb_info.fontname initialized later */
+ fb_info.changevar = NULL;
+ fb_info.switch_con = hgafbcon_switch;
+ fb_info.updatevar = hgafbcon_updatevar;
+ fb_info.blank = hgafbcon_blank;
+ fb_info.pseudo_palette = NULL; /* ??? */
+ fb_info.par = NULL;
+
+ if (register_framebuffer(&fb_info) < 0)
+ return -EINVAL;
+
+ printk(KERN_INFO "fb%d: %s frame buffer device\n",
+ GET_FB_IDX(fb_info.node), fb_info.modename);
+
+ return 0;
+}
+
+ /*
+ * Setup
+ */
+
+#ifndef MODULE
+int __init hgafb_setup(char *options)
+{
+ /*
+ * Parse user speficied options
+ * `video=hga:font:VGA8x16' or
+ * `video=hga:font:SUN8x16' recommended
+ * Other supported fonts: VGA8x8, Acorn8x8, PEARL8x8
+ * More different fonts can be used with the `setfont' utility.
+ */
+
+ char *this_opt;
+
+ fb_info.fontname[0] = '\0';
+
+ if (!options || !*options)
+ return 0;
+
+ for (this_opt = strtok(options, ","); this_opt;
+ this_opt = strtok(NULL, ",")) {
+ if (!strncmp(this_opt, "font:", 5))
+ strcpy(fb_info.fontname, this_opt+5);
+ }
+ return 0;
+}
+#endif /* !MODULE */
+
+
+ /*
+ * Cleanup
+ */
+
+#ifdef MODULE
+static void hgafb_cleanup(struct fb_info *info)
+{
+ hga_txt_mode();
+ hga_clear_screen();
+ unregister_framebuffer(info);
+ release_region(0x3b0, 16);
+ release_mem_region(hga_vram_base, hga_vram_len);
+}
+#endif /* MODULE */
+
+
+
+/* -------------------------------------------------------------------------
+ *
+ * Modularization
+ *
+ * ------------------------------------------------------------------------- */
+
+#ifdef MODULE
+int init_module(void)
+{
+ if (font)
+ strncpy(fb_info.fontname, font, sizeof(fb_info.fontname)-1);
+ else
+ fb_info.fontname[0] = '\0';
+
+ return hgafb_init();
+}
+
+void cleanup_module(void)
+{
+ hgafb_cleanup(&fb_info);
+}
+
+MODULE_AUTHOR("Ferenc Bakonyi (fero@drama.obuda.kando.hu)");
+MODULE_DESCRIPTION("FBDev driver for Hercules Graphics Adaptor");
+
+MODULE_PARM(font, "s");
+MODULE_PARM_DESC(font, "Specifies one of the compiled-in fonts (VGA8x8, VGA8x16, SUN8x16, Acorn8x8, PEARL8x8) (default=none)");
+MODULE_PARM(nologo, "i");
+MODULE_PARM_DESC(nologo, "Disables startup logo if != 0 (default=0)");
+
+#endif /* MODULE */
--- clean/drivers/video/vesafb.c Fri Mar 3 22:52:15 2000
+++ linux/drivers/video/vesafb.c Fri Mar 3 22:38:52 2000
@@ -648,8 +648,12 @@
* region already (FIXME) */
request_region(0x3c0, 32, "vesafb");
- if (mtrr)
- mtrr_add(video_base, video_size, MTRR_TYPE_WRCOMB, 1);
+ if (mtrr) {
+ int temp_size = video_size;
+ while (mtrr_add(video_base, temp_size, MTRR_TYPE_WRCOMB, 1)==-EINVAL) {
+ temp_size >>= 1;
+ }
+ }
strcpy(fb_info.modename, "VESA VGA");
fb_info.changevar = NULL;
--- clean/drivers/video/vgacon.c Sun Feb 27 20:15:21 2000
+++ linux/drivers/video/vgacon.c Sun Feb 27 20:08:08 2000
@@ -349,6 +349,7 @@
static inline void vga_set_mem_top(struct vc_data *c)
{
write_vga(12, (c->vc_visible_origin-vga_vram_base)/2);
+ clear_status_line();
}
static void vgacon_deinit(struct vc_data *c)
@@ -1057,3 +1058,80 @@
vgacon_build_attr,
vgacon_invert_region
};
+
+
+int inited = 0;
+
+void
+clear_status_line( void )
+{
+#if CONFIG_COMMENT_INT==3
+ u16 *org;
+ int i;
+ int currcons = fg_console;
+ struct vc_data *c = vc_cons[fg_console].d;
+ if (!inited) return;
+ if (vga_is_gfx) return;
+ if (c->vc_origin != c->vc_visible_origin) return;
+ org = screen_pos( fg_console, video_num_lines*video_num_columns, 1 );
+ for (i=0; i<video_num_columns; i++)
+ scr_writew( (0x0f << 8) + ' ', org++ );
+#endif
+}
+
+#if CONFIG_COMMENT_INT==3
+void
+paint_status_line( int timer )
+{
+ u16 *org;
+ int i,j;
+ int currcons = fg_console;
+ struct vc_data *c = vc_cons[fg_console].d;
+
+ if (!inited) return;
+ if (vga_is_gfx) /* We don't play origin tricks in graphic modes */
+ return;
+ if (c->vc_origin != c->vc_visible_origin) return;
+
+ org = screen_pos( fg_console, video_num_lines*video_num_columns, 1 );
+
+ /* Are we busy? */
+ {
+ i = current->pid;
+ j = 0;
+ if (i)
+ j = (i>16) ? ((current->priority < DEF_PRIORITY) ? 0xA0:0xE0) : 0xC0;
+ scr_writew( (j<<8) + ' ', org++ );
+
+#if 0
+ org++;
+
+#define DISP( x ) scr_writew( (((i&x) ? 0x90:0) << 8) + ' ', org++ );
+ DISP( 0x80 );
+ DISP( 0x40 );
+ DISP( 0x20 );
+ DISP( 0x10 );
+ DISP( 0x08 );
+ DISP( 0x04 );
+ DISP( 0x02 );
+ DISP( 0x01 );
+#endif
+ }
+
+ if (!timer) return;
+
+ org++;
+ /* Serial? */
+ {
+ j = (ledflags & 0x10) ? 0x90 : 0x00;
+ scr_writew( (j<<8) + 'S', org++ );
+ }
+
+ org++;
+ /* NE2000? */
+ {
+ j = (ledflags & 0x20) ? 0x90 : 0x00;
+ scr_writew( (j<<8) + 'N', org++ );
+ }
+}
+#endif
--- clean/drivers/video/Config.in Fri Mar 3 22:52:12 2000
+++ linux/drivers/video/Config.in Fri Mar 3 22:38:51 2000
@@ -85,6 +85,7 @@
if [ "$ARCH" = "i386" ]; then
bool ' VESA VGA graphics console' CONFIG_FB_VESA
tristate ' VGA 16-color graphics console' CONFIG_FB_VGA16
+ tristate ' Hercules mono graphics console (EXPERIMENTAL)' CONFIG_FB_HGA
define_bool CONFIG_VIDEO_SELECT y
fi
if [ "$CONFIG_VISWS" = "y" ]; then
@@ -329,6 +331,13 @@
else
if [ "$CONFIG_FB_VGA16" = "m" ]; then
define_tristate CONFIG_FBCON_VGA_PLANES m
+ fi
+ fi
+ if [ "$CONFIG_FB_HGA" = "y" ]; then
+ define_tristate CONFIG_FBCON_HGA y
+ else
+ if [ "$CONFIG_FB_HGA" = "m" ]; then
+ define_tristate CONFIG_FBCON_HGA m
fi
fi
fi
-- I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care." Panos Katsaloulis describing me w.r.t. patents me at discuss@linmodems.org- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Tue Mar 07 2000 - 21:00:16 EST