patch-2.1.115 linux/drivers/macintosh/chips.c

• Lines: 190
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.1.114/linux/drivers/macintosh/chips.c
• Orig date: Wed Jul 1 19:38:54 1998

diff -u --recursive --new-file v2.1.114/linux/drivers/macintosh/chips.c linux/drivers/macintosh/chips.c
@@ -1,189 +0,0 @@
-/*
- * chips.c: Console support for PowerBook 3400/2400 chips65550 display adaptor.
- *
- * Copyright (C) 1997 Fabio Riccardi.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-#include <linux/selection.h>
-#include <linux/vmalloc.h>
-#include <asm/vc_ioctl.h>
-#include <asm/prom.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/adb.h>
-#include <asm/cuda.h>
-#include <asm/pmu.h>
-#include <asm/pci-bridge.h>
-#include <asm/init.h>
-#include "pmac-cons.h"
-#include "chips.h"
-#include <linux/console_compat.h>
-
-
-static unsigned char *frame_buffer;
-static unsigned char *blitter_regs;
-static unsigned char *io_space;
-static unsigned long chips_base_phys;
-static unsigned long chips_io_phys;
-
-__openfirmware
-
-void
-map_chips_display(struct device_node *dp)
-{
-    unsigned char bus, devfn;
-    unsigned short cmd;
-    unsigned long addr;
-
-    addr = dp->addrs[0].address;
-    chips_base_phys = addr;
-    frame_buffer = __ioremap(addr + 0x800000, 0x100000, _PAGE_WRITETHRU);
-    blitter_regs = ioremap(addr + 0xC00000, 4096);
-    
-    printk("Mapped chips65550 frame buffer at %p, blitter at %p\n",
-	   frame_buffer, blitter_regs);
-    
-    if (pci_device_loc(dp, &bus, &devfn) == 0) {
-	pcibios_read_config_word(bus, devfn, PCI_COMMAND, &cmd);
-	cmd |= 3;	// enable memory and IO space
-	pcibios_write_config_word(bus, devfn, PCI_COMMAND, cmd);
-	io_space = (unsigned char *) pci_io_base(bus);
-	/* XXX really want the physical address here */
-	chips_io_phys = (unsigned long) pci_io_base(bus);
-	printk("Chips65550 IO space at %p\n", io_space);
-    }
-
-    video_mode = VMODE_800_600_60;
-    color_mode = CMODE_8;
-}
-
-#define write_xr(num,val)	{ out_8(io_space + 0x3D6, num); out_8(io_space + 0x3D7, val); }
-#define read_xr(num,var)	{ out_8(io_space + 0x3D6, num); var = in_8(io_space + 0x3D7); }
-#define write_fr(num,val)	{ out_8(io_space + 0x3D0, num); out_8(io_space + 0x3D1, val); }
-#define read_fr(num,var)	{ out_8(io_space + 0x3D0, num); var = in_8(io_space + 0x3D1); }
-#define write_cr(num,val)	{ out_8(io_space + 0x3D4, num); out_8(io_space + 0x3D5, val); }
-#define read_cr(num,var)	{ out_8(io_space + 0x3D4, num); var = in_8(io_space + 0x3D5); }
-
-void
-chips_init()
-{
-    unsigned *p;
-    int i, hres;
-
-    if (video_mode != VMODE_800_600_60) {
-	printk(KERN_ERR "chips65550: display mode %d not supported", video_mode);
-	video_mode = VMODE_800_600_60;
-    }
-
-    if (color_mode != CMODE_8 && color_mode != CMODE_16) {
-	printk(KERN_ERR "chips65550: color mode %d not supported", color_mode);
-	color_mode = CMODE_8;
-    }
-    
-    n_scanlines = 600;
-    hres        = 800;
-    pixel_size  = 1 << color_mode;
-    line_pitch  = hres * pixel_size;
-    row_pitch = line_pitch * 16;
-
-    if (color_mode == CMODE_16) {
-	write_cr(0x13, 200);		// 16 bit display width (decimal)
-	write_xr(0x81, 0x14);		// 15 bit (TrueColor) color mode
-	write_xr(0x82, 0x00);		// disable palettes
-	write_xr(0x20, 0x10);		// 16 bit blitter mode
-	// write_xr(0x80, 0x00);	// 6 bit DAC
-	// write_fr(0x11, 0X50);	// No dither, 5 bits/color
-    } else if (color_mode == CMODE_8) {
-	write_cr(0x13, 100);		// 8 bit display width (decimal)
-	write_xr(0x81, 0x12);		// 8 bit color mode
-	write_xr(0x82, 0x08);		// Graphics gamma enable
-	write_xr(0x20, 0x00);		// 8 bit blitter mode
-	// write_xr(0x80, 0x82);	// 8 bit DAC, CRT overscan
-	// write_fr(0x11, 0XE0);	// Res Dither on, 6 bits/pixel
-    }
-
-    pmac_init_palette();	/* Initialize colormap */
-
-    fb_start = frame_buffer;
-
-    printk(KERN_INFO "hres = %d height = %d pitch = %d\n",
-	   hres, n_scanlines, line_pitch);
-
-    display_info.height = n_scanlines;
-    display_info.width = hres;
-    display_info.depth = pixel_size * 8;
-    display_info.pitch = line_pitch;
-    display_info.mode = video_mode;
-    strncpy(display_info.name, "chips65550", sizeof(display_info.name));
-    display_info.fb_address = chips_base_phys + 0x800000;
-    display_info.cmap_adr_address = chips_io_phys + 0x3c8;
-    display_info.cmap_data_address = chips_io_phys + 0x3c9;
-    display_info.disp_reg_address = chips_base_phys + 0xC00000;
-
-    /* Clear screen */
-    p = (unsigned *) frame_buffer;
-    for (i = n_scanlines * line_pitch / sizeof(unsigned); i != 0; --i)
-	*p++ = 0;
-
-    /* Turn on backlight */
-    pmu_enable_backlight(1);
-}
-
-int
-chips_setmode(struct vc_mode *mode, int doit)
-{
-    int cmode;
-
-    switch (mode->depth) {
-    case 16:
-	cmode = CMODE_16;
-	break;
-    case 8:
-    case 0:		/* (default) */
-	cmode = CMODE_8;
-	break;
-    default:
-	return -EINVAL;
-    }
-
-    if (mode->mode != VMODE_800_600_60)
-	return -EINVAL;
-    
-    if (doit) {
-	video_mode = mode->mode;
-	color_mode = cmode;
-	chips_init();
-    }
-
-    return 0;
-}
-
-void
-chips_set_palette(unsigned char red[], unsigned char green[],
-		  unsigned char blue[], int index, int ncolors)
-{
-    int i;
-
-    for (i = 0; i < ncolors; ++i) {
-	out_8(&io_space[0x3C8], index + i);
-	udelay(1);
-	out_8(&io_space[0x3C9], red[i]);
-	out_8(&io_space[0x3C9], green[i]);
-	out_8(&io_space[0x3C9], blue[i]);
-    }
-}
-
-void
-chips_set_blanking(int blank_mode)
-{
-    pmu_enable_backlight(blank_mode == VESA_NO_BLANKING);
-}