sparc: Kill PROM console driver.

Many years ago when this driver was written, it had a use, but these
days it's nothing but trouble and distributions should not enable it
in any situation.

Pretty much every console device a sparc machine could see has a
bonafide real driver, making the PROM console hack unnecessary.

If any new device shows up, we should write a driver instead of
depending upon this crutch to save us.  We've been able to take care
of this even when no chip documentation exists (sunxvr500, sunxvr2500)
so there are no excuses.

Signed-off-by: David S. Miller <davem@davemloft.net>

6 files changed, 1 insertions, 634 deletions

diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 404f4c1ee43..6aa88f50b03 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -2948,9 +2948,6 @@ int __init vty_init(const struct file_operations *console_fops)
 		panic("Couldn't register console driver\n");
 	kbd_init();
 	console_map_init();
-#ifdef CONFIG_PROM_CONSOLE
-	prom_con_init();
-#endif
 #ifdef CONFIG_MDA_CONSOLE
 	mda_console_init();
 #endif
diff --git a/drivers/video/console/.gitignore b/drivers/video/console/.gitignore
deleted file mode 100644
index 0c258b45439..00000000000
--- a/drivers/video/console/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-# conmakehash generated file
-promcon_tbl.c
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 2f50a80b413..fc7d9bbb548 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -67,16 +67,9 @@ config SGI_NEWPORT_CONSOLE
 
 #  bool 'IODC console' CONFIG_IODC_CONSOLE
 
-config PROM_CONSOLE
-	bool "PROM console"
-	depends on SPARC
-	help
-	  Say Y to build a console driver for Sun machines that uses the
-	  terminal emulation built into their console PROMS.
-
 config DUMMY_CONSOLE
 	bool
-	depends on PROM_CONSOLE!=y || VGA_CONSOLE!=y || SGI_NEWPORT_CONSOLE!=y 
+	depends on VGA_CONSOLE!=y || SGI_NEWPORT_CONSOLE!=y 
 	default y
 
 config DUMMY_CONSOLE_COLUMNS
diff --git a/drivers/video/console/Makefile b/drivers/video/console/Makefile
index ac46cc3f6a2..a862e9173eb 100644
--- a/drivers/video/console/Makefile
+++ b/drivers/video/console/Makefile
@@ -22,7 +22,6 @@ font-objs += $(font-objs-y)
 
 obj-$(CONFIG_DUMMY_CONSOLE)       += dummycon.o
 obj-$(CONFIG_SGI_NEWPORT_CONSOLE) += newport_con.o font.o
-obj-$(CONFIG_PROM_CONSOLE)        += promcon.o promcon_tbl.o
 obj-$(CONFIG_STI_CONSOLE)         += sticon.o sticore.o font.o
 obj-$(CONFIG_VGA_CONSOLE)         += vgacon.o
 obj-$(CONFIG_MDA_CONSOLE)         += mdacon.o
@@ -40,14 +39,3 @@ obj-$(CONFIG_FB_STI)              += sticore.o font.o
 ifeq ($(CONFIG_USB_SISUSBVGA_CON),y)
 obj-$(CONFIG_USB_SISUSBVGA)           += font.o
 endif
-
-# Targets that kbuild needs to know about
-targets := promcon_tbl.c
-
-quiet_cmd_conmakehash = CNMKHSH $@
-      cmd_conmakehash = scripts/conmakehash $< | \
-		sed -e '/\#include <[^>]*>/p' -e 's/types/init/' \
-		-e 's/dfont\(_uni.*\]\)/promfont\1 /' > $@
-
-$(obj)/promcon_tbl.c: $(src)/prom.uni
-	$(call cmd,conmakehash)
diff --git a/drivers/video/console/prom.uni b/drivers/video/console/prom.uni
deleted file mode 100644
index 58f9c04ed9d..00000000000
--- a/drivers/video/console/prom.uni
+++ /dev/null
@@ -1,11 +0,0 @@
-#
-# Unicode mapping table for font in Sun PROM
-# 
-#
-0x20-0x7e	idem
-0xa0-0xff	idem
-#
-0x7c		U+2502
-0x2d		U+2500
-0x2b		U+250c U+2510 U+2514 U+2518 U+251c U+2524 U+252c U+2534 U+253c
-0xa4		U+fffd
diff --git a/drivers/video/console/promcon.c b/drivers/video/console/promcon.c
deleted file mode 100644
index ae02e4eb18e..00000000000
--- a/drivers/video/console/promcon.c
+++ /dev/null
@@ -1,598 +0,0 @@
-/* $Id: promcon.c,v 1.17 2000/07/26 23:02:52 davem Exp $
- * Console driver utilizing PROM sun terminal emulation
- *
- * Copyright (C) 1998  Eddie C. Dost  (ecd@skynet.be)
- * Copyright (C) 1998  Jakub Jelinek  (jj@ultra.linux.cz)
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/console.h>
-#include <linux/vt_kern.h>
-#include <linux/selection.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/kd.h>
-
-#include <asm/oplib.h>
-#include <asm/uaccess.h>
-
-static short pw = 80 - 1, ph = 34 - 1;
-static short px, py;
-static unsigned long promcon_uni_pagedir[2];
-
-extern u8 promfont_unicount[];
-extern u16 promfont_unitable[];
-
-#define PROMCON_COLOR 0
-
-#if PROMCON_COLOR
-#define inverted(s)	((((s) & 0x7700) == 0x0700) ? 0 : 1)
-#else
-#define inverted(s)	(((s) & 0x0800) ? 1 : 0)
-#endif
-
-static __inline__ void
-promcon_puts(char *buf, int cnt)
-{
-	prom_printf("%*.*s", cnt, cnt, buf);
-}
-
-static int
-promcon_start(struct vc_data *conp, char *b)
-{
-	unsigned short *s = (unsigned short *)
-			(conp->vc_origin + py * conp->vc_size_row + (px << 1));
-	u16 cs;
-
-	cs = scr_readw(s);
-	if (px == pw) {
-		unsigned short *t = s - 1;
-		u16 ct = scr_readw(t);
-
-		if (inverted(cs) && inverted(ct))
-			return sprintf(b, "\b\033[7m%c\b\033[@%c\033[m", cs,
-				       ct);
-		else if (inverted(cs))
-			return sprintf(b, "\b\033[7m%c\033[m\b\033[@%c", cs,
-				       ct);
-		else if (inverted(ct))
-			return sprintf(b, "\b%c\b\033[@\033[7m%c\033[m", cs,
-				       ct);
-		else
-			return sprintf(b, "\b%c\b\033[@%c", cs, ct);
-	}
-
-	if (inverted(cs))
-		return sprintf(b, "\033[7m%c\033[m\b", cs);
-	else
-		return sprintf(b, "%c\b", cs);
-}
-
-static int
-promcon_end(struct vc_data *conp, char *b)
-{
-	unsigned short *s = (unsigned short *)
-			(conp->vc_origin + py * conp->vc_size_row + (px << 1));
-	char *p = b;
-	u16 cs;
-
-	b += sprintf(b, "\033[%d;%dH", py + 1, px + 1);
-
-	cs = scr_readw(s);
-	if (px == pw) {
-		unsigned short *t = s - 1;
-		u16 ct = scr_readw(t);
-
-		if (inverted(cs) && inverted(ct))
-			b += sprintf(b, "\b%c\b\033[@\033[7m%c\033[m", cs, ct);
-		else if (inverted(cs))
-			b += sprintf(b, "\b%c\b\033[@%c", cs, ct);
-		else if (inverted(ct))
-			b += sprintf(b, "\b\033[7m%c\b\033[@%c\033[m", cs, ct);
-		else
-			b += sprintf(b, "\b\033[7m%c\033[m\b\033[@%c", cs, ct);
-		return b - p;
-	}
-
-	if (inverted(cs))
-		b += sprintf(b, "%c\b", cs);
-	else
-		b += sprintf(b, "\033[7m%c\033[m\b", cs);
-	return b - p;
-}
-
-const char *promcon_startup(void)
-{
-	const char *display_desc = "PROM";
-	int node;
-	char buf[40];
-	
-	node = prom_getchild(prom_root_node);
-	node = prom_searchsiblings(node, "options");
-	if (prom_getproperty(node,  "screen-#columns", buf, 40) != -1) {
-		pw = simple_strtoul(buf, NULL, 0);
-		if (pw < 10 || pw > 256)
-			pw = 80;
-		pw--;
-	}
-	if (prom_getproperty(node,  "screen-#rows", buf, 40) != -1) {
-		ph = simple_strtoul(buf, NULL, 0);
-		if (ph < 10 || ph > 256)
-			ph = 34;
-		ph--;
-	}
-	promcon_puts("\033[H\033[J", 6);
-	return display_desc;
-}
-
-static void
-promcon_init_unimap(struct vc_data *conp)
-{
-	mm_segment_t old_fs = get_fs();
-	struct unipair *p, *p1;
-	u16 *q;
-	int i, j, k;
-	
-	p = kmalloc(256*sizeof(struct unipair), GFP_KERNEL);
-	if (!p) return;
-	
-	q = promfont_unitable;
-	p1 = p;
-	k = 0;
-	for (i = 0; i < 256; i++)
-		for (j = promfont_unicount[i]; j; j--) {
-			p1->unicode = *q++;
-			p1->fontpos = i;
-			p1++;
-			k++;
-		}
-	set_fs(KERNEL_DS);
-	con_clear_unimap(conp, NULL);
-	con_set_unimap(conp, k, p);
-	con_protect_unimap(conp, 1);
-	set_fs(old_fs);
-	kfree(p);
-}
-
-static void
-promcon_init(struct vc_data *conp, int init)
-{
-	unsigned long p;
-	
-	conp->vc_can_do_color = PROMCON_COLOR;
-	if (init) {
-		conp->vc_cols = pw + 1;
-		conp->vc_rows = ph + 1;
-	}
-	p = *conp->vc_uni_pagedir_loc;
-	if (conp->vc_uni_pagedir_loc == &conp->vc_uni_pagedir ||
-	    !--conp->vc_uni_pagedir_loc[1])
-		con_free_unimap(conp);
-	conp->vc_uni_pagedir_loc = promcon_uni_pagedir;
-	promcon_uni_pagedir[1]++;
-	if (!promcon_uni_pagedir[0] && p) {
-		promcon_init_unimap(conp);
-	}
-	if (!init) {
-		if (conp->vc_cols != pw + 1 || conp->vc_rows != ph + 1)
-			vc_resize(conp, pw + 1, ph + 1);
-	}
-}
-
-static void
-promcon_deinit(struct vc_data *conp)
-{
-	/* When closing the last console, reset video origin */
-	if (!--promcon_uni_pagedir[1])
-		con_free_unimap(conp);
-	conp->vc_uni_pagedir_loc = &conp->vc_uni_pagedir;
-	con_set_default_unimap(conp);
-}
-
-static int
-promcon_switch(struct vc_data *conp)
-{
-	return 1;
-}
-
-static unsigned short *
-promcon_repaint_line(unsigned short *s, unsigned char *buf, unsigned char **bp)
-{
-	int cnt = pw + 1;
-	int attr = -1;
-	unsigned char *b = *bp;
-
-	while (cnt--) {
-		u16 c = scr_readw(s);
-		if (attr != inverted(c)) {
-			attr = inverted(c);
-			if (attr) {
-				strcpy (b, "\033[7m");
-				b += 4;
-			} else {
-				strcpy (b, "\033[m");
-				b += 3;
-			}
-		}
-		*b++ = c;
-		s++;
-		if (b - buf >= 224) {
-			promcon_puts(buf, b - buf);
-			b = buf;
-		}
-	}
-	*bp = b;
-	return s;
-}
-
-static void
-promcon_putcs(struct vc_data *conp, const unsigned short *s,
-	      int count, int y, int x)
-{
-	unsigned char buf[256], *b = buf;
-	unsigned short attr = scr_readw(s);
-	unsigned char save;
-	int i, last = 0;
-
-	if (console_blanked)
-		return;
-	
-	if (count <= 0)
-		return;
-
-	b += promcon_start(conp, b);
-
-	if (x + count >= pw + 1) {
-		if (count == 1) {
-			x -= 1;
-			save = scr_readw((unsigned short *)(conp->vc_origin
-						   + y * conp->vc_size_row
-						   + (x << 1)));
-
-			if (px != x || py != y) {
-				b += sprintf(b, "\033[%d;%dH", y + 1, x + 1);
-				px = x;
-				py = y;
-			}
-
-			if (inverted(attr))
-				b += sprintf(b, "\033[7m%c\033[m", scr_readw(s++));
-			else
-				b += sprintf(b, "%c", scr_readw(s++));
-
-			strcpy(b, "\b\033[@");
-			b += 4;
-
-			if (inverted(save))
-				b += sprintf(b, "\033[7m%c\033[m", save);
-			else
-				b += sprintf(b, "%c", save);
-
-			px++;
-
-			b += promcon_end(conp, b);
-			promcon_puts(buf, b - buf);
-			return;
-		} else {
-			last = 1;
-			count = pw - x - 1;
-		}
-	}
-
-	if (inverted(attr)) {
-		strcpy(b, "\033[7m");
-		b += 4;
-	}
-
-	if (px != x || py != y) {
-		b += sprintf(b, "\033[%d;%dH", y + 1, x + 1);
-		px = x;
-		py = y;
-	}
-
-	for (i = 0; i < count; i++) {
-		if (b - buf >= 224) {
-			promcon_puts(buf, b - buf);
-			b = buf;
-		}
-		*b++ = scr_readw(s++);
-	}
-
-	px += count;
-
-	if (last) {
-		save = scr_readw(s++);
-		b += sprintf(b, "%c\b\033[@%c", scr_readw(s++), save);
-		px++;
-	}
-
-	if (inverted(attr)) {
-		strcpy(b, "\033[m");
-		b += 3;
-	}
-
-	b += promcon_end(conp, b);
-	promcon_puts(buf, b - buf);
-}
-
-static void
-promcon_putc(struct vc_data *conp, int c, int y, int x)
-{
-	unsigned short s;
-
-	if (console_blanked)
-		return;
-	
-	scr_writew(c, &s);
-	promcon_putcs(conp, &s, 1, y, x);
-}
-
-static void
-promcon_clear(struct vc_data *conp, int sy, int sx, int height, int width)
-{
-	unsigned char buf[256], *b = buf;
-	int i, j;
-
-	if (console_blanked)
-		return;
-	
-	b += promcon_start(conp, b);
-
-	if (!sx && width == pw + 1) {
-
-		if (!sy && height == ph + 1) {
-			strcpy(b, "\033[H\033[J");
-			b += 6;
-			b += promcon_end(conp, b);
-			promcon_puts(buf, b - buf);
-			return;
-		} else if (sy + height == ph + 1) {
-			b += sprintf(b, "\033[%dH\033[J", sy + 1);
-			b += promcon_end(conp, b);
-			promcon_puts(buf, b - buf);
-			return;
-		}
-
-		b += sprintf(b, "\033[%dH", sy + 1);
-		for (i = 1; i < height; i++) {
-			strcpy(b, "\033[K\n");
-			b += 4;
-		}
-
-		strcpy(b, "\033[K");
-		b += 3;
-
-		b += promcon_end(conp, b);
-		promcon_puts(buf, b - buf);
-		return;
-
-	} else if (sx + width == pw + 1) {
-
-		b += sprintf(b, "\033[%d;%dH", sy + 1, sx + 1);
-		for (i = 1; i < height; i++) {
-			strcpy(b, "\033[K\n");
-			b += 4;
-		}
-
-		strcpy(b, "\033[K");
-		b += 3;
-
-		b += promcon_end(conp, b);
-		promcon_puts(buf, b - buf);
-		return;
-	}
-
-	for (i = sy + 1; i <= sy + height; i++) {
-		b += sprintf(b, "\033[%d;%dH", i, sx + 1);
-		for (j = 0; j < width; j++)
-			*b++ = ' ';
-		if (b - buf + width >= 224) {
-			promcon_puts(buf, b - buf);
-			b = buf;
-		}
-	}
-
-	b += promcon_end(conp, b);
-	promcon_puts(buf, b - buf);
-}
-                        
-static void
-promcon_bmove(struct vc_data *conp, int sy, int sx, int dy, int dx,
-	      int height, int width)
-{
-	char buf[256], *b = buf;
-
-	if (console_blanked)
-		return;
-	
-	b += promcon_start(conp, b);
-	if (sy == dy && height == 1) {
-		if (dx > sx && dx + width == conp->vc_cols)
-			b += sprintf(b, "\033[%d;%dH\033[%d@\033[%d;%dH",
-				     sy + 1, sx + 1, dx - sx, py + 1, px + 1);
-		else if (dx < sx && sx + width == conp->vc_cols)
-			b += sprintf(b, "\033[%d;%dH\033[%dP\033[%d;%dH",
-				     dy + 1, dx + 1, sx - dx, py + 1, px + 1);
-
-		b += promcon_end(conp, b);
-		promcon_puts(buf, b - buf);
-		return;
-	}
-
-	/*
-	 * FIXME: What to do here???
-	 * Current console.c should not call it like that ever.
-	 */
-	prom_printf("\033[7mFIXME: bmove not handled\033[m\n");
-}
-
-static void
-promcon_cursor(struct vc_data *conp, int mode)
-{
-	char buf[32], *b = buf;
-
-	switch (mode) {
-	case CM_ERASE:
-		break;
-
-	case CM_MOVE:
-	case CM_DRAW:
-		b += promcon_start(conp, b);
-		if (px != conp->vc_x || py != conp->vc_y) {
-			px = conp->vc_x;
-			py = conp->vc_y;
-			b += sprintf(b, "\033[%d;%dH", py + 1, px + 1);
-		}
-		promcon_puts(buf, b - buf);
-		break;
-	}
-}
-
-static int
-promcon_blank(struct vc_data *conp, int blank, int mode_switch)
-{
-	if (blank) {
-		promcon_puts("\033[H\033[J\033[7m \033[m\b", 15);
-		return 0;
-	} else {
-		/* Let console.c redraw */
-		return 1;
-	}
-}
-
-static int
-promcon_scroll(struct vc_data *conp, int t, int b, int dir, int count)
-{
-	unsigned char buf[256], *p = buf;
-	unsigned short *s;
-	int i;
-
-	if (console_blanked)
-		return 0;
-	
-	p += promcon_start(conp, p);
-
-	switch (dir) {
-	case SM_UP:
-		if (b == ph + 1) {
-			p += sprintf(p, "\033[%dH\033[%dM", t + 1, count);
-			px = 0;
-			py = t;
-			p += promcon_end(conp, p);
-			promcon_puts(buf, p - buf);
-			break;
-		}
-
-		s = (unsigned short *)(conp->vc_origin
-				       + (t + count) * conp->vc_size_row);
-
-		p += sprintf(p, "\033[%dH", t + 1);
-
-		for (i = t; i < b - count; i++)
-			s = promcon_repaint_line(s, buf, &p);
-
-		for (; i < b - 1; i++) {
-			strcpy(p, "\033[K\n");
-			p += 4;
-			if (p - buf >= 224) {
-				promcon_puts(buf, p - buf);
-				p = buf;
-			}
-		}
-
-		strcpy(p, "\033[K");
-		p += 3;
-
-		p += promcon_end(conp, p);
-		promcon_puts(buf, p - buf);
-		break;
-
-	case SM_DOWN:
-		if (b == ph + 1) {
-			p += sprintf(p, "\033[%dH\033[%dL", t + 1, count);
-			px = 0;
-			py = t;
-			p += promcon_end(conp, p);
-			promcon_puts(buf, p - buf);
-			break;
-		}
-
-		s = (unsigned short *)(conp->vc_origin + t * conp->vc_size_row);
-
-		p += sprintf(p, "\033[%dH", t + 1);
-
-		for (i = t; i < t + count; i++) {
-			strcpy(p, "\033[K\n");
-			p += 4;
-			if (p - buf >= 224) {
-				promcon_puts(buf, p - buf);
-				p = buf;
-			}
-		}
-
-		for (; i < b; i++)
-			s = promcon_repaint_line(s, buf, &p);
-
-		p += promcon_end(conp, p);
-		promcon_puts(buf, p - buf);
-		break;
-	}
-
-	return 0;
-}
-
-#if !(PROMCON_COLOR)
-static u8 promcon_build_attr(struct vc_data *conp, u8 _color, u8 _intensity,
-    u8 _blink, u8 _underline, u8 _reverse, u8 _italic)
-{
-	return (_reverse) ? 0xf : 0x7;
-}
-#endif
-
-/*
- *  The console 'switch' structure for the VGA based console
- */
-
-static int promcon_dummy(void)
-{
-        return 0;
-}
-
-#define DUMMY (void *) promcon_dummy
-
-const struct consw prom_con = {
-	.owner =		THIS_MODULE,
-	.con_startup =		promcon_startup,
-	.con_init =		promcon_init,
-	.con_deinit =		promcon_deinit,
-	.con_clear =		promcon_clear,
-	.con_putc =		promcon_putc,
-	.con_putcs =		promcon_putcs,
-	.con_cursor =		promcon_cursor,
-	.con_scroll =		promcon_scroll,
-	.con_bmove =		promcon_bmove,
-	.con_switch =		promcon_switch,
-	.con_blank =		promcon_blank,
-	.con_set_palette =	DUMMY,
-	.con_scrolldelta =	DUMMY,
-#if !(PROMCON_COLOR)
-	.con_build_attr =	promcon_build_attr,
-#endif
-};
-
-void __init prom_con_init(void)
-{
-#ifdef CONFIG_DUMMY_CONSOLE
-	if (conswitchp == &dummy_con)
-		take_over_console(&prom_con, 0, MAX_NR_CONSOLES-1, 1);
-	else
-#endif
-	if (conswitchp == &prom_con)
-		promcon_init_unimap(vc_cons[fg_console].d);
-}