patch-2.4.0-test12 linux/drivers/video/sticon.c

• Lines: 230
• Date: Tue Dec 5 12:29:39 2000
• Orig file: v2.4.0-test11/linux/drivers/video/sticon.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test11/linux/drivers/video/sticon.c linux/drivers/video/sticon.c
@@ -0,0 +1,229 @@
+/*
+ *  linux/drivers/video/sticon.c  - console driver using HP's STI firmware
+ *
+ *	Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
+ *
+ *  Based on linux/drivers/video/vgacon.c and linux/drivers/video/fbcon.c,
+ *  which were
+ *
+ *	Created 28 Sep 1997 by Geert Uytterhoeven
+ *	Rewritten by Martin Mares <mj@ucw.cz>, July 1998
+ *	Copyright (C) 1991, 1992  Linus Torvalds
+ *			    1995  Jay Estabrook
+ *	Copyright (C) 1995 Geert Uytterhoeven
+ *	Copyright (C) 1993 Bjoern Brauel
+ *			   Roman Hodek
+ *	Copyright (C) 1993 Hamish Macdonald
+ *			   Greg Harp
+ *	Copyright (C) 1994 David Carter [carter@compsci.bristol.ac.uk]
+ *
+ *	      with work by William Rucklidge (wjr@cs.cornell.edu)
+ *			   Geert Uytterhoeven
+ *			   Jes Sorensen (jds@kom.auc.dk)
+ *			   Martin Apel
+ *	      with work by Guenther Kelleter
+ *			   Martin Schaller
+ *			   Andreas Schwab
+ *			   Emmanuel Marty (core@ggi-project.org)
+ *			   Jakub Jelinek (jj@ultra.linux.cz)
+ *			   Martin Mares <mj@ucw.cz>
+ *
+ *  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.
+ */
+/*
+ *  TODO:
+ *   - call STI in virtual mode rather than in real mode
+ *   - support for PCI-only STI ROMs (which don't have a traditional region
+ *     list)
+ *   - safe detection (i.e. verify there is a graphics device at a given
+ *     address first, not just read a random device's io space)
+ *   - support for multiple STI devices in one machine
+ *   - support for byte-mode STI ROMs
+ *   - support for just using STI to switch to a colour fb (stifb ?)
+ *   - try to make it work on m68k hp workstations ;)
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/console.h>
+#include <linux/console_struct.h>
+#include <linux/errno.h>
+#include <linux/vt_kern.h>
+#include <linux/selection.h>
+
+#include <asm/io.h>
+
+#include "sti.h"
+
+/* STICON */
+
+static const char * __init
+sticon_startup(void)
+{
+	return "STI console";
+}
+
+static int
+sticon_set_palette(struct vc_data *c, unsigned char *table)
+{
+	return -EINVAL;
+}
+static int
+sticon_font_op(struct vc_data *c, struct console_font_op *op)
+{
+	return -ENOSYS;
+}
+
+static void sticon_putc(struct vc_data *conp, int c, int ypos, int xpos)
+{
+	sti_putc(&default_sti, c, ypos, xpos);
+}
+
+static void sticon_putcs(struct vc_data *conp, const unsigned short *s,
+	int count, int ypos, int xpos)
+{
+	while(count--) {
+		sti_putc(&default_sti, *s++, ypos, xpos++);
+	}
+}
+
+static void sticon_cursor(struct vc_data *conp, int mode)
+{
+}
+
+static int sticon_scroll(struct vc_data *conp, int t, int b, int dir,
+			int count)
+{
+	struct sti_struct *sti = &default_sti;
+
+	if(console_blanked)
+		return 0;
+
+	sticon_cursor(conp, CM_ERASE);
+
+	switch(dir) {
+	case SM_UP:
+		sti_bmove(sti, t+count, 0, t, 0, b-t-count, conp->vc_cols);
+		sti_clear(sti, b-count, 0, count, conp->vc_cols);
+
+		break;
+
+	case SM_DOWN:
+		sti_bmove(sti, t, 0, t+count, 0, b-t-count, conp->vc_cols);
+		sti_clear(sti, t, 0, count, conp->vc_cols);
+
+		break;
+	}
+
+	return 0;
+}
+	
+static void sticon_bmove(struct vc_data *conp, int sy, int sx, int dy, int dx,
+			 int height, int width)
+{
+	sti_bmove(&default_sti, sy, sx, dy, dx, height, width);
+}
+
+static void sticon_init(struct vc_data *c, int init)
+{
+	struct sti_struct *sti = &default_sti;
+	int vc_cols, vc_rows;
+
+	sti_set(sti, 0, 0, sti_onscreen_y(sti), sti_onscreen_x(sti), 0);
+	c->vc_can_do_color = 1;
+	vc_cols = PTR_STI(sti->glob_cfg)->onscreen_x / sti_font_x(sti);
+	vc_rows = PTR_STI(sti->glob_cfg)->onscreen_y / sti_font_y(sti);
+
+	vc_resize_con(vc_rows, vc_cols, c->vc_num);
+}
+
+static void sticon_deinit(struct vc_data *c)
+{
+}
+
+static void sticon_clear(struct vc_data *conp, int sy, int sx, int height,
+			int width)
+{
+	sti_clear(&default_sti, sy, sx, height, width);
+}
+
+static int sticon_switch(struct vc_data *conp)
+{
+	return 0;
+}
+
+static int sticon_blank(struct vc_data *conp, int blank)
+{
+	return 0;
+}
+
+static int sticon_scrolldelta(struct vc_data *conp, int lines)
+{
+	return 0;
+}
+
+static int sticon_set_origin(struct vc_data *conp)
+{
+	return 0;
+}
+
+static u16 *sticon_screen_pos(struct vc_data *conp, int offset)
+{
+	return NULL;
+}
+
+static unsigned long sticon_getxy(struct vc_data *conp, unsigned long pos, int *px, int *py)
+{
+	return 0;
+}
+
+static u8 sticon_build_attr(struct vc_data *conp, u8 color, u8 intens, u8 blink, u8 underline, u8 reverse)
+{
+	u8 attr = ((color & 0x70) >> 1) | ((color & 7));
+
+	if(reverse) {
+		color = ((color>>3)&0x7) | ((color &0x7)<<3);
+	}
+
+
+	return attr;
+}
+
+struct consw sti_con = {
+	con_startup: 		sticon_startup, 
+	con_init: 		sticon_init,
+	con_deinit: 		sticon_deinit,
+	con_clear: 		sticon_clear,
+	con_putc: 		sticon_putc,
+	con_putcs: 		sticon_putcs,
+	con_cursor: 		sticon_cursor,
+	con_scroll: 		sticon_scroll,
+	con_bmove: 		sticon_bmove,
+	con_switch: 		sticon_switch,
+	con_blank: 		sticon_blank,
+	con_font_op:		sticon_font_op,
+	con_set_palette:	sticon_set_palette,
+	con_scrolldelta:	sticon_scrolldelta,
+	con_set_origin: 	sticon_set_origin,
+	con_save_screen:	NULL,
+	con_build_attr:		sticon_build_attr,
+	con_invert_region:	NULL,
+	con_screen_pos:		sticon_screen_pos,
+	con_getxy:		sticon_getxy,
+};
+
+static int __init sti_init(void)
+{
+	printk("searching for word mode STI ROMs\n");
+	if (sti_init_roms()) {
+		pdc_console_die();
+		take_over_console(&sti_con, 0, MAX_NR_CONSOLES-1, 1);
+		return 0;
+	} else
+		return -ENODEV;
+}
+
+module_init(sti_init)