patch-2.1.115 linux/drivers/sbus/char/bwtwo.c

• Lines: 221
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.1.114/linux/drivers/sbus/char/bwtwo.c
• Orig date: Fri May 8 23:14:48 1998

diff -u --recursive --new-file v2.1.114/linux/drivers/sbus/char/bwtwo.c linux/drivers/sbus/char/bwtwo.c
@@ -1,220 +0,0 @@
-/* $Id: bwtwo.c,v 1.21 1998/04/24 12:29:53 davem Exp $
- * bwtwo.c: bwtwo console driver
- *
- * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
- * Copyright (C) 1997 Eddie C. Dost   (ecd@skynet.be)
- * Copyright (C) 1998 Pavel Machek    (pavel@ucw.cz)
- */
-
-#include <linux/config.h>
-#include <linux/kd.h>
-#include <linux/tty.h>
-#include <linux/malloc.h>
-#include <linux/proc_fs.h>
-
-#include <asm/sbus.h>
-#include <asm/io.h>
-#include <asm/fbio.h>
-#include <asm/pgtable.h>
-
-/* These must be included after asm/fbio.h */
-#include <linux/vt_kern.h>
-#include <linux/selection.h>
-#include <linux/console_struct.h>
-
-#include "fb.h"
-#include "cg_common.h"
-
-/* OBio addresses for the bwtwo registers */
-#define BWTWO_REGISTER_OFFSET 0x400000
-
-struct bwtwo_regs {
-	__volatile__ struct bt_regs	bt;
-	__volatile__ __u8		control;
-	__volatile__ __u8		status;
-	__volatile__ __u8		cursor_start;
-	__volatile__ __u8		cursor_end;
-	__volatile__ __u8		h_blank_start;
-	__volatile__ __u8		h_blank_end;
-	__volatile__ __u8		h_sync_start;
-	__volatile__ __u8		h_sync_end;
-	__volatile__ __u8		comp_sync_end;
-	__volatile__ __u8		v_blank_start_high;
-	__volatile__ __u8		v_blank_start_low;
-	__volatile__ __u8		v_blank_end;
-	__volatile__ __u8		v_sync_start;
-	__volatile__ __u8		v_sync_end;
-	__volatile__ __u8		xfer_holdoff_start;
-	__volatile__ __u8		xfer_holdoff_end;
-};
-
-/* Status Register Constants */
-#define BWTWO_SR_RES_MASK	0x70
-#define BWTWO_SR_1600_1280	0x50
-#define BWTWO_SR_1152_900_76_A	0x40
-#define BWTWO_SR_1152_900_76_B	0x60
-#define BWTWO_SR_ID_MASK	0x0f
-#define BWTWO_SR_ID_MONO	0x02
-#define BWTWO_SR_ID_MONO_ECL	0x03
-#define BWTWO_SR_ID_MSYNC	0x04
-
-/* Control Register Constants */
-#define BWTWO_CTL_ENABLE_INTS   0x80
-#define BWTWO_CTL_ENABLE_VIDEO  0x40
-#define BWTWO_CTL_ENABLE_TIMING 0x20
-#define BWTWO_CTL_ENABLE_CURCMP 0x10
-#define BWTWO_CTL_XTAL_MASK     0x0C
-#define BWTWO_CTL_DIVISOR_MASK  0x03
-
-/* Status Register Constants */
-#define BWTWO_STAT_PENDING_INT  0x80
-#define BWTWO_STAT_MSENSE_MASK  0x70
-#define BWTWO_STAT_ID_MASK      0x0f
-
-
-static int
-bwtwo_mmap (struct inode *inode, struct file *file, struct vm_area_struct *vma,
-	    long base, fbinfo_t *fb)
-{
-	uint size, r;
-	unsigned long map_offset;
-	int map_size;
-	
-	map_size = size = vma->vm_end - vma->vm_start;
-	
-	if (vma->vm_offset & ~PAGE_MASK)
-		return -ENXIO;
-
-	/* To stop the swapper from even considering these pages */
-	vma->vm_flags |= FB_MMAP_VM_FLAGS;
-
-	/* This routine should also map the register if asked for,
-	 * but we don't do that yet.
-	 */
-	map_offset = get_phys ((unsigned long) fb->base);
-	r = io_remap_page_range (vma->vm_start, map_offset, map_size,
-				 vma->vm_page_prot, fb->space);
-	if (r)
-		return -EAGAIN;
-
-	vma->vm_file = file;
-	file->f_count++;
-	return 0;
-}
-
-static void
-bwtwo_blank (fbinfo_t *fb)
-{
-	fb->info.bwtwo.regs->control &= ~BWTWO_CTL_ENABLE_VIDEO;
-}
-
-static void
-bwtwo_unblank (fbinfo_t *fb)
-{
-	fb->info.bwtwo.regs->control |= BWTWO_CTL_ENABLE_VIDEO;
-}
-
-
-static u8 bw2regs_1600[] __initdata = {
-	0x14, 0x8b,	0x15, 0x28,	0x16, 0x03,	0x17, 0x13,
-	0x18, 0x7b,	0x19, 0x05,	0x1a, 0x34,	0x1b, 0x2e,
-	0x1c, 0x00,	0x1d, 0x0a,	0x1e, 0xff,	0x1f, 0x01,
-	0x10, 0x21,	0
-};
-
-static u8 bw2regs_ecl[] __initdata = {
-	0x14, 0x65,	0x15, 0x1e,	0x16, 0x04,	0x17, 0x0c,
-	0x18, 0x5e,	0x19, 0x03,	0x1a, 0xa7,	0x1b, 0x23,
-	0x1c, 0x00,	0x1d, 0x08,	0x1e, 0xff,	0x1f, 0x01,
-	0x10, 0x20,	0
-};
-
-static u8 bw2regs_analog[] __initdata = {
-	0x14, 0xbb,	0x15, 0x2b,	0x16, 0x03,	0x17, 0x13,
-	0x18, 0xb0,	0x19, 0x03,	0x1a, 0xa6,	0x1b, 0x22,
-	0x1c, 0x01,	0x1d, 0x05,	0x1e, 0xff,	0x1f, 0x01,
-	0x10, 0x20,	0
-};
-
-static u8 bw2regs_76hz[] __initdata = {
-	0x14, 0xb7,	0x15, 0x27,	0x16, 0x03,	0x17, 0x0f,
-	0x18, 0xae,	0x19, 0x03,	0x1a, 0xae,	0x1b, 0x2a,
-	0x1c, 0x01,	0x1d, 0x09,	0x1e, 0xff,	0x1f, 0x01,
-	0x10, 0x24,	0
-};
-
-static u8 bw2regs_66hz[] __initdata = {
-	0x14, 0xbb,	0x15, 0x2b,	0x16, 0x04,	0x17, 0x14,
-	0x18, 0xae,	0x19, 0x03,	0x1a, 0xa8,	0x1b, 0x24,
-	0x1c, 0x01,	0x1d, 0x05,	0x1e, 0xff,	0x1f, 0x01,
-	0x10, 0x20,	0
-};
-
-__initfunc(void bwtwo_setup (fbinfo_t *fb, int slot, u32 bwtwo, int bw2_io,
-			     struct linux_sbus_device *sbdp))
-{
-	printk ("bwtwo%d at 0x%8.8x\n", slot, bwtwo);
-	fb->type.fb_cmsize = 0;
-	fb->mmap = bwtwo_mmap;
-	fb->loadcmap = 0;
-	fb->ioctl = 0;
-	fb->reset = 0;
-#ifndef CONFIG_SUN4	
-	fb->blank = bwtwo_blank;
-	fb->unblank = bwtwo_unblank;
-#endif
-
-	fb->info.bwtwo.regs =
-		sparc_alloc_io (bwtwo + BWTWO_REGISTER_OFFSET,
-				0, sizeof (struct bwtwo_regs),
-		"bwtwo_regs", bw2_io, 0);
-
-	if (sbdp && !prom_getbool(sbdp->prom_node, "width")) {
-		/* Ugh, broken PROM didn't initialize us.
-		 * Let's deal with this ourselves.
-		 */
-		u8 status, mon;
-		u8 *p;
-
-		status = fb->info.bwtwo.regs->status;
-		mon = status & BWTWO_SR_RES_MASK;
-		switch (status & BWTWO_SR_ID_MASK) {
-			case BWTWO_SR_ID_MONO_ECL:
-				if (mon == BWTWO_SR_1600_1280) {
-					p = bw2regs_1600;
-					fb->type.fb_width = 1600;
-					fb->type.fb_height = 1280;
-				} else {
-					p = bw2regs_ecl;
-				}
-				break;
-			case BWTWO_SR_ID_MONO:
-				p = bw2regs_analog;
-				break;
-			case BWTWO_SR_ID_MSYNC:
-				if (mon == BWTWO_SR_1152_900_76_A ||
-				    mon == BWTWO_SR_1152_900_76_B) {
-					p = bw2regs_76hz;
-				} else {
-					p = bw2regs_66hz;
-				}
-				break;
-			default:
-				prom_printf("bwtwo: can't handle SR %02x\n",
-					    status);
-				prom_halt();
-				return; /* fool gcc. */
-		}
-		for ( ; *p; p += 2)
-			((u8 *)fb->info.bwtwo.regs)[p[0]] = p[1];
-	}
-
-	if(!fb->base)
-		fb->base = (unsigned long) sparc_alloc_io(bwtwo, 0,
-		  ((fb->type.fb_depth*fb->type.fb_height*fb->type.fb_width)/8),
-		  "bwtwo_fbase", bw2_io, 0);
-
-	if (slot && sun_prom_console_id != slot)
-		bwtwo_blank (fb);
-}
-