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path: root/drivers/video/offb.c
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-rw-r--r--drivers/video/offb.c574
1 files changed, 0 insertions, 574 deletions
diff --git a/drivers/video/offb.c b/drivers/video/offb.c
deleted file mode 100644
index ad1434e3f22..00000000000
--- a/drivers/video/offb.c
+++ /dev/null
@@ -1,574 +0,0 @@
-/*
- * linux/drivers/video/offb.c -- Open Firmware based frame buffer device
- *
- * Copyright (C) 1997 Geert Uytterhoeven
- *
- * This driver is partly based on the PowerMac console driver:
- *
- * Copyright (C) 1996 Paul Mackerras
- *
- * 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/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/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-
-#ifdef CONFIG_PPC64
-#include <asm/pci-bridge.h>
-#endif
-
-#ifdef CONFIG_PPC32
-#include <asm/bootx.h>
-#endif
-
-#include "macmodes.h"
-
-/* Supported palette hacks */
-enum {
- cmap_unknown,
- cmap_m64, /* ATI Mach64 */
- cmap_r128, /* ATI Rage128 */
- cmap_M3A, /* ATI Rage Mobility M3 Head A */
- cmap_M3B, /* ATI Rage Mobility M3 Head B */
- cmap_radeon, /* ATI Radeon */
- cmap_gxt2000, /* IBM GXT2000 */
-};
-
-struct offb_par {
- volatile void __iomem *cmap_adr;
- volatile void __iomem *cmap_data;
- int cmap_type;
- int blanked;
-};
-
-struct offb_par default_par;
-
- /*
- * Interface used by the world
- */
-
-int offb_init(void);
-
-static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp, struct fb_info *info);
-static int offb_blank(int blank, struct fb_info *info);
-
-#ifdef CONFIG_PPC32
-extern boot_infos_t *boot_infos;
-#endif
-
-static void offb_init_nodriver(struct device_node *);
-static void offb_init_fb(const char *name, const char *full_name,
- int width, int height, int depth, int pitch,
- unsigned long address, struct device_node *dp);
-
-static struct fb_ops offb_ops = {
- .owner = THIS_MODULE,
- .fb_setcolreg = offb_setcolreg,
- .fb_blank = offb_blank,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
-};
-
- /*
- * Set a single color register. The values supplied are already
- * rounded down to the hardware's capabilities (according to the
- * entries in the var structure). Return != 0 for invalid regno.
- */
-
-static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
- u_int transp, struct fb_info *info)
-{
- struct offb_par *par = (struct offb_par *) info->par;
-
- if (!par->cmap_adr || regno > 255)
- return 1;
-
- red >>= 8;
- green >>= 8;
- blue >>= 8;
-
- switch (par->cmap_type) {
- case cmap_m64:
- writeb(regno, par->cmap_adr);
- writeb(red, par->cmap_data);
- writeb(green, par->cmap_data);
- writeb(blue, par->cmap_data);
- break;
- case cmap_M3A:
- /* Clear PALETTE_ACCESS_CNTL in DAC_CNTL */
- out_le32(par->cmap_adr + 0x58,
- in_le32(par->cmap_adr + 0x58) & ~0x20);
- case cmap_r128:
- /* Set palette index & data */
- out_8(par->cmap_adr + 0xb0, regno);
- out_le32(par->cmap_adr + 0xb4,
- (red << 16 | green << 8 | blue));
- break;
- case cmap_M3B:
- /* Set PALETTE_ACCESS_CNTL in DAC_CNTL */
- out_le32(par->cmap_adr + 0x58,
- in_le32(par->cmap_adr + 0x58) | 0x20);
- /* Set palette index & data */
- out_8(par->cmap_adr + 0xb0, regno);
- out_le32(par->cmap_adr + 0xb4, (red << 16 | green << 8 | blue));
- break;
- case cmap_radeon:
- /* Set palette index & data (could be smarter) */
- out_8(par->cmap_adr + 0xb0, regno);
- out_le32(par->cmap_adr + 0xb4, (red << 16 | green << 8 | blue));
- break;
- case cmap_gxt2000:
- out_le32((unsigned __iomem *) par->cmap_adr + regno,
- (red << 16 | green << 8 | blue));
- break;
- }
-
- if (regno < 16)
- switch (info->var.bits_per_pixel) {
- case 16:
- ((u16 *) (info->pseudo_palette))[regno] =
- (regno << 10) | (regno << 5) | regno;
- break;
- case 32:
- {
- int i = (regno << 8) | regno;
- ((u32 *) (info->pseudo_palette))[regno] =
- (i << 16) | i;
- break;
- }
- }
- return 0;
-}
-
- /*
- * Blank the display.
- */
-
-static int offb_blank(int blank, struct fb_info *info)
-{
- struct offb_par *par = (struct offb_par *) info->par;
- int i, j;
-
- if (!par->cmap_adr)
- return 0;
-
- if (!par->blanked)
- if (!blank)
- return 0;
-
- par->blanked = blank;
-
- if (blank)
- for (i = 0; i < 256; i++) {
- switch (par->cmap_type) {
- case cmap_m64:
- writeb(i, par->cmap_adr);
- for (j = 0; j < 3; j++)
- writeb(0, par->cmap_data);
- break;
- case cmap_M3A:
- /* Clear PALETTE_ACCESS_CNTL in DAC_CNTL */
- out_le32(par->cmap_adr + 0x58,
- in_le32(par->cmap_adr + 0x58) & ~0x20);
- case cmap_r128:
- /* Set palette index & data */
- out_8(par->cmap_adr + 0xb0, i);
- out_le32(par->cmap_adr + 0xb4, 0);
- break;
- case cmap_M3B:
- /* Set PALETTE_ACCESS_CNTL in DAC_CNTL */
- out_le32(par->cmap_adr + 0x58,
- in_le32(par->cmap_adr + 0x58) | 0x20);
- /* Set palette index & data */
- out_8(par->cmap_adr + 0xb0, i);
- out_le32(par->cmap_adr + 0xb4, 0);
- break;
- case cmap_radeon:
- out_8(par->cmap_adr + 0xb0, i);
- out_le32(par->cmap_adr + 0xb4, 0);
- break;
- case cmap_gxt2000:
- out_le32((unsigned __iomem *) par->cmap_adr + i,
- 0);
- break;
- }
- } else
- fb_set_cmap(&info->cmap, info);
- return 0;
-}
-
- /*
- * Initialisation
- */
-
-int __init offb_init(void)
-{
- struct device_node *dp = NULL, *boot_disp = NULL;
-
-#if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32)
- struct device_node *macos_display = NULL;
-#endif
- if (fb_get_options("offb", NULL))
- return -ENODEV;
-
-#if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32)
- /* If we're booted from BootX... */
- if (boot_infos != 0) {
- unsigned long addr =
- (unsigned long) boot_infos->dispDeviceBase;
- u32 *addrp;
- u64 daddr, dsize;
- unsigned int flags;
-
- /* find the device node corresponding to the macos display */
- while ((dp = of_find_node_by_type(dp, "display"))) {
- int i;
-
- /*
- * Look for an AAPL,address property first.
- */
- unsigned int na;
- unsigned int *ap =
- (unsigned int *)get_property(dp, "AAPL,address",
- &na);
- if (ap != 0) {
- for (na /= sizeof(unsigned int); na > 0;
- --na, ++ap)
- if (*ap <= addr &&
- addr < *ap + 0x1000000) {
- macos_display = dp;
- goto foundit;
- }
- }
-
- /*
- * See if the display address is in one of the address
- * ranges for this display.
- */
- i = 0;
- for (;;) {
- addrp = of_get_address(dp, i++, &dsize, &flags);
- if (addrp == NULL)
- break;
- if (!(flags & IORESOURCE_MEM))
- continue;
- daddr = of_translate_address(dp, addrp);
- if (daddr == OF_BAD_ADDR)
- continue;
- if (daddr <= addr && addr < (daddr + dsize)) {
- macos_display = dp;
- goto foundit;
- }
- }
- foundit:
- if (macos_display) {
- printk(KERN_INFO "MacOS display is %s\n",
- dp->full_name);
- break;
- }
- }
-
- /* initialize it */
- offb_init_fb(macos_display ? macos_display->
- name : "MacOS display",
- macos_display ? macos_display->
- full_name : "MacOS display",
- boot_infos->dispDeviceRect[2],
- boot_infos->dispDeviceRect[3],
- boot_infos->dispDeviceDepth,
- boot_infos->dispDeviceRowBytes, addr, NULL);
- }
-#endif /* defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32) */
-
- for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) {
- if (get_property(dp, "linux,opened", NULL) &&
- get_property(dp, "linux,boot-display", NULL)) {
- boot_disp = dp;
- offb_init_nodriver(dp);
- }
- }
- for (dp = NULL; (dp = of_find_node_by_type(dp, "display"));) {
- if (get_property(dp, "linux,opened", NULL) &&
- dp != boot_disp)
- offb_init_nodriver(dp);
- }
-
- return 0;
-}
-
-
-static void __init offb_init_nodriver(struct device_node *dp)
-{
- int *pp, i;
- unsigned int len;
- int width = 640, height = 480, depth = 8, pitch;
- unsigned int flags, rsize, *up;
- u64 address = OF_BAD_ADDR;
- u32 *addrp;
- u64 asize;
-
- if ((pp = (int *) get_property(dp, "depth", &len)) != NULL
- && len == sizeof(int))
- depth = *pp;
- if ((pp = (int *) get_property(dp, "width", &len)) != NULL
- && len == sizeof(int))
- width = *pp;
- if ((pp = (int *) get_property(dp, "height", &len)) != NULL
- && len == sizeof(int))
- height = *pp;
- if ((pp = (int *) get_property(dp, "linebytes", &len)) != NULL
- && len == sizeof(int)) {
- pitch = *pp;
- if (pitch == 1)
- pitch = 0x1000;
- } else
- pitch = width;
-
- rsize = (unsigned long)pitch * (unsigned long)height *
- (unsigned long)(depth / 8);
-
- /* Try to match device to a PCI device in order to get a properly
- * translated address rather then trying to decode the open firmware
- * stuff in various incorrect ways
- */
-#ifdef CONFIG_PCI
- /* First try to locate the PCI device if any */
- {
- struct pci_dev *pdev = NULL;
-
- for_each_pci_dev(pdev) {
- if (dp == pci_device_to_OF_node(pdev))
- break;
- }
- if (pdev) {
- for (i = 0; i < 6 && address == OF_BAD_ADDR; i++) {
- if ((pci_resource_flags(pdev, i) &
- IORESOURCE_MEM) &&
- (pci_resource_len(pdev, i) >= rsize))
- address = pci_resource_start(pdev, i);
- }
- pci_dev_put(pdev);
- }
- }
-#endif /* CONFIG_PCI */
-
- /* This one is dodgy, we may drop it ... */
- if (address == OF_BAD_ADDR &&
- (up = (unsigned *) get_property(dp, "address", &len)) != NULL &&
- len == sizeof(unsigned int))
- address = (u64) * up;
-
- if (address == OF_BAD_ADDR) {
- for (i = 0; (addrp = of_get_address(dp, i, &asize, &flags))
- != NULL; i++) {
- if (!(flags & IORESOURCE_MEM))
- continue;
- if (asize >= pitch * height * depth / 8)
- break;
- }
- if (addrp == NULL) {
- printk(KERN_ERR
- "no framebuffer address found for %s\n",
- dp->full_name);
- return;
- }
- address = of_translate_address(dp, addrp);
- if (address == OF_BAD_ADDR) {
- printk(KERN_ERR
- "can't translate framebuffer address for %s\n",
- dp->full_name);
- return;
- }
-
- /* kludge for valkyrie */
- if (strcmp(dp->name, "valkyrie") == 0)
- address += 0x1000;
- }
- offb_init_fb(dp->name, dp->full_name, width, height, depth,
- pitch, address, dp);
-
-}
-
-static void __init offb_init_fb(const char *name, const char *full_name,
- int width, int height, int depth,
- int pitch, unsigned long address,
- struct device_node *dp)
-{
- unsigned long res_size = pitch * height * depth / 8;
- struct offb_par *par = &default_par;
- unsigned long res_start = address;
- struct fb_fix_screeninfo *fix;
- struct fb_var_screeninfo *var;
- struct fb_info *info;
- int size;
-
- if (!request_mem_region(res_start, res_size, "offb"))
- return;
-
- printk(KERN_INFO
- "Using unsupported %dx%d %s at %lx, depth=%d, pitch=%d\n",
- width, height, name, address, depth, pitch);
- if (depth != 8 && depth != 16 && depth != 32) {
- printk(KERN_ERR "%s: can't use depth = %d\n", full_name,
- depth);
- release_mem_region(res_start, res_size);
- return;
- }
-
- size = sizeof(struct fb_info) + sizeof(u32) * 17;
-
- info = kmalloc(size, GFP_ATOMIC);
-
- if (info == 0) {
- release_mem_region(res_start, res_size);
- return;
- }
- memset(info, 0, size);
-
- fix = &info->fix;
- var = &info->var;
-
- strcpy(fix->id, "OFfb ");
- strncat(fix->id, name, sizeof(fix->id) - sizeof("OFfb "));
- fix->id[sizeof(fix->id) - 1] = '\0';
-
- var->xres = var->xres_virtual = width;
- var->yres = var->yres_virtual = height;
- fix->line_length = pitch;
-
- fix->smem_start = address;
- fix->smem_len = pitch * height;
- fix->type = FB_TYPE_PACKED_PIXELS;
- fix->type_aux = 0;
-
- par->cmap_type = cmap_unknown;
- if (depth == 8) {
-
- /* Palette hacks disabled for now */
-#if 0
- if (dp && !strncmp(name, "ATY,Rage128", 11)) {
- unsigned long regbase = dp->addrs[2].address;
- par->cmap_adr = ioremap(regbase, 0x1FFF);
- par->cmap_type = cmap_r128;
- } else if (dp && (!strncmp(name, "ATY,RageM3pA", 12)
- || !strncmp(name, "ATY,RageM3p12A", 14))) {
- unsigned long regbase =
- dp->parent->addrs[2].address;
- par->cmap_adr = ioremap(regbase, 0x1FFF);
- par->cmap_type = cmap_M3A;
- } else if (dp && !strncmp(name, "ATY,RageM3pB", 12)) {
- unsigned long regbase =
- dp->parent->addrs[2].address;
- par->cmap_adr = ioremap(regbase, 0x1FFF);
- par->cmap_type = cmap_M3B;
- } else if (dp && !strncmp(name, "ATY,Rage6", 9)) {
- unsigned long regbase = dp->addrs[1].address;
- par->cmap_adr = ioremap(regbase, 0x1FFF);
- par->cmap_type = cmap_radeon;
- } else if (!strncmp(name, "ATY,", 4)) {
- unsigned long base = address & 0xff000000UL;
- par->cmap_adr =
- ioremap(base + 0x7ff000, 0x1000) + 0xcc0;
- par->cmap_data = par->cmap_adr + 1;
- par->cmap_type = cmap_m64;
- } else if (device_is_compatible(dp, "pci1014,b7")) {
- unsigned long regbase = dp->addrs[0].address;
- par->cmap_adr = ioremap(regbase + 0x6000, 0x1000);
- par->cmap_type = cmap_gxt2000;
- }
-#endif
- fix->visual = par->cmap_adr ? FB_VISUAL_PSEUDOCOLOR
- : FB_VISUAL_STATIC_PSEUDOCOLOR;
- } else
- fix->visual = /* par->cmap_adr ? FB_VISUAL_DIRECTCOLOR
- : */ FB_VISUAL_TRUECOLOR;
-
- var->xoffset = var->yoffset = 0;
- var->bits_per_pixel = depth;
- switch (depth) {
- case 8:
- var->bits_per_pixel = 8;
- var->red.offset = 0;
- var->red.length = 8;
- var->green.offset = 0;
- var->green.length = 8;
- var->blue.offset = 0;
- var->blue.length = 8;
- var->transp.offset = 0;
- var->transp.length = 0;
- break;
- case 16: /* RGB 555 */
- var->bits_per_pixel = 16;
- var->red.offset = 10;
- var->red.length = 5;
- var->green.offset = 5;
- var->green.length = 5;
- var->blue.offset = 0;
- var->blue.length = 5;
- var->transp.offset = 0;
- var->transp.length = 0;
- break;
- case 32: /* RGB 888 */
- var->bits_per_pixel = 32;
- var->red.offset = 16;
- var->red.length = 8;
- var->green.offset = 8;
- var->green.length = 8;
- var->blue.offset = 0;
- var->blue.length = 8;
- var->transp.offset = 24;
- var->transp.length = 8;
- break;
- }
- var->red.msb_right = var->green.msb_right = var->blue.msb_right =
- var->transp.msb_right = 0;
- var->grayscale = 0;
- var->nonstd = 0;
- var->activate = 0;
- var->height = var->width = -1;
- var->pixclock = 10000;
- var->left_margin = var->right_margin = 16;
- var->upper_margin = var->lower_margin = 16;
- var->hsync_len = var->vsync_len = 8;
- var->sync = 0;
- var->vmode = FB_VMODE_NONINTERLACED;
-
- info->fbops = &offb_ops;
- info->screen_base = ioremap(address, fix->smem_len);
- info->par = par;
- info->pseudo_palette = (void *) (info + 1);
- info->flags = FBINFO_DEFAULT;
-
- fb_alloc_cmap(&info->cmap, 256, 0);
-
- if (register_framebuffer(info) < 0) {
- kfree(info);
- release_mem_region(res_start, res_size);
- return;
- }
-
- printk(KERN_INFO "fb%d: Open Firmware frame buffer device on %s\n",
- info->node, full_name);
-}
-
-module_init(offb_init);
-MODULE_LICENSE("GPL");