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Diffstat (limited to 'drivers/video/vesafb.c')
-rw-r--r--drivers/video/vesafb.c511
1 files changed, 0 insertions, 511 deletions
diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c
deleted file mode 100644
index 1c7da3b098d6..000000000000
--- a/drivers/video/vesafb.c
+++ /dev/null
@@ -1,511 +0,0 @@
-/*
- * framebuffer driver for VBE 2.0 compliant graphic boards
- *
- * switching to graphics mode happens at boot time (while
- * running in real mode, see arch/i386/boot/video.S).
- *
- * (c) 1998 Gerd Knorr <kraxel@goldbach.in-berlin.de>
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/screen_info.h>
-
-#include <video/vga.h>
-#include <asm/io.h>
-#include <asm/mtrr.h>
-
-#define dac_reg (0x3c8)
-#define dac_val (0x3c9)
-
-/* --------------------------------------------------------------------- */
-
-static struct fb_var_screeninfo vesafb_defined = {
- .activate = FB_ACTIVATE_NOW,
- .height = -1,
- .width = -1,
- .right_margin = 32,
- .upper_margin = 16,
- .lower_margin = 4,
- .vsync_len = 4,
- .vmode = FB_VMODE_NONINTERLACED,
-};
-
-static struct fb_fix_screeninfo vesafb_fix = {
- .id = "VESA VGA",
- .type = FB_TYPE_PACKED_PIXELS,
- .accel = FB_ACCEL_NONE,
-};
-
-static int inverse __read_mostly;
-static int mtrr __read_mostly; /* disable mtrr */
-static int vram_remap; /* Set amount of memory to be used */
-static int vram_total; /* Set total amount of memory */
-static int pmi_setpal __read_mostly = 1; /* pmi for palette changes ??? */
-static int ypan __read_mostly; /* 0..nothing, 1..ypan, 2..ywrap */
-static void (*pmi_start)(void) __read_mostly;
-static void (*pmi_pal) (void) __read_mostly;
-static int depth __read_mostly;
-static int vga_compat __read_mostly;
-/* --------------------------------------------------------------------- */
-
-static int vesafb_pan_display(struct fb_var_screeninfo *var,
- struct fb_info *info)
-{
-#ifdef __i386__
- int offset;
-
- offset = (var->yoffset * info->fix.line_length + var->xoffset) / 4;
-
- __asm__ __volatile__(
- "call *(%%edi)"
- : /* no return value */
- : "a" (0x4f07), /* EAX */
- "b" (0), /* EBX */
- "c" (offset), /* ECX */
- "d" (offset >> 16), /* EDX */
- "D" (&pmi_start)); /* EDI */
-#endif
- return 0;
-}
-
-static int vesa_setpalette(int regno, unsigned red, unsigned green,
- unsigned blue)
-{
- int shift = 16 - depth;
- int err = -EINVAL;
-
-/*
- * Try VGA registers first...
- */
- if (vga_compat) {
- outb_p(regno, dac_reg);
- outb_p(red >> shift, dac_val);
- outb_p(green >> shift, dac_val);
- outb_p(blue >> shift, dac_val);
- err = 0;
- }
-
-#ifdef __i386__
-/*
- * Fallback to the PMI....
- */
- if (err && pmi_setpal) {
- struct { u_char blue, green, red, pad; } entry;
-
- entry.red = red >> shift;
- entry.green = green >> shift;
- entry.blue = blue >> shift;
- entry.pad = 0;
- __asm__ __volatile__(
- "call *(%%esi)"
- : /* no return value */
- : "a" (0x4f09), /* EAX */
- "b" (0), /* EBX */
- "c" (1), /* ECX */
- "d" (regno), /* EDX */
- "D" (&entry), /* EDI */
- "S" (&pmi_pal)); /* ESI */
- err = 0;
- }
-#endif
-
- return err;
-}
-
-static int vesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
- unsigned blue, unsigned transp,
- struct fb_info *info)
-{
- int err = 0;
-
- /*
- * 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.
- */
-
- if (regno >= info->cmap.len)
- return 1;
-
- if (info->var.bits_per_pixel == 8)
- err = vesa_setpalette(regno,red,green,blue);
- else if (regno < 16) {
- switch (info->var.bits_per_pixel) {
- case 16:
- if (info->var.red.offset == 10) {
- /* 1:5:5:5 */
- ((u32*) (info->pseudo_palette))[regno] =
- ((red & 0xf800) >> 1) |
- ((green & 0xf800) >> 6) |
- ((blue & 0xf800) >> 11);
- } else {
- /* 0:5:6:5 */
- ((u32*) (info->pseudo_palette))[regno] =
- ((red & 0xf800) ) |
- ((green & 0xfc00) >> 5) |
- ((blue & 0xf800) >> 11);
- }
- break;
- case 24:
- case 32:
- red >>= 8;
- green >>= 8;
- blue >>= 8;
- ((u32 *)(info->pseudo_palette))[regno] =
- (red << info->var.red.offset) |
- (green << info->var.green.offset) |
- (blue << info->var.blue.offset);
- break;
- }
- }
-
- return err;
-}
-
-static void vesafb_destroy(struct fb_info *info)
-{
- fb_dealloc_cmap(&info->cmap);
- if (info->screen_base)
- iounmap(info->screen_base);
- release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size);
- framebuffer_release(info);
-}
-
-static struct fb_ops vesafb_ops = {
- .owner = THIS_MODULE,
- .fb_destroy = vesafb_destroy,
- .fb_setcolreg = vesafb_setcolreg,
- .fb_pan_display = vesafb_pan_display,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
-};
-
-static int vesafb_setup(char *options)
-{
- char *this_opt;
-
- if (!options || !*options)
- return 0;
-
- while ((this_opt = strsep(&options, ",")) != NULL) {
- if (!*this_opt) continue;
-
- if (! strcmp(this_opt, "inverse"))
- inverse=1;
- else if (! strcmp(this_opt, "redraw"))
- ypan=0;
- else if (! strcmp(this_opt, "ypan"))
- ypan=1;
- else if (! strcmp(this_opt, "ywrap"))
- ypan=2;
- else if (! strcmp(this_opt, "vgapal"))
- pmi_setpal=0;
- else if (! strcmp(this_opt, "pmipal"))
- pmi_setpal=1;
- else if (! strncmp(this_opt, "mtrr:", 5))
- mtrr = simple_strtoul(this_opt+5, NULL, 0);
- else if (! strcmp(this_opt, "nomtrr"))
- mtrr=0;
- else if (! strncmp(this_opt, "vtotal:", 7))
- vram_total = simple_strtoul(this_opt+7, NULL, 0);
- else if (! strncmp(this_opt, "vremap:", 7))
- vram_remap = simple_strtoul(this_opt+7, NULL, 0);
- }
- return 0;
-}
-
-static int vesafb_probe(struct platform_device *dev)
-{
- struct fb_info *info;
- int i, err;
- unsigned int size_vmode;
- unsigned int size_remap;
- unsigned int size_total;
- char *option = NULL;
-
- /* ignore error return of fb_get_options */
- fb_get_options("vesafb", &option);
- vesafb_setup(option);
-
- if (screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB)
- return -ENODEV;
-
- vga_compat = (screen_info.capabilities & 2) ? 0 : 1;
- vesafb_fix.smem_start = screen_info.lfb_base;
- vesafb_defined.bits_per_pixel = screen_info.lfb_depth;
- if (15 == vesafb_defined.bits_per_pixel)
- vesafb_defined.bits_per_pixel = 16;
- vesafb_defined.xres = screen_info.lfb_width;
- vesafb_defined.yres = screen_info.lfb_height;
- vesafb_fix.line_length = screen_info.lfb_linelength;
- vesafb_fix.visual = (vesafb_defined.bits_per_pixel == 8) ?
- FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
-
- /* size_vmode -- that is the amount of memory needed for the
- * used video mode, i.e. the minimum amount of
- * memory we need. */
- size_vmode = vesafb_defined.yres * vesafb_fix.line_length;
-
- /* size_total -- all video memory we have. Used for mtrr
- * entries, resource allocation and bounds
- * checking. */
- size_total = screen_info.lfb_size * 65536;
- if (vram_total)
- size_total = vram_total * 1024 * 1024;
- if (size_total < size_vmode)
- size_total = size_vmode;
-
- /* size_remap -- the amount of video memory we are going to
- * use for vesafb. With modern cards it is no
- * option to simply use size_total as that
- * wastes plenty of kernel address space. */
- size_remap = size_vmode * 2;
- if (vram_remap)
- size_remap = vram_remap * 1024 * 1024;
- if (size_remap < size_vmode)
- size_remap = size_vmode;
- if (size_remap > size_total)
- size_remap = size_total;
- vesafb_fix.smem_len = size_remap;
-
-#ifndef __i386__
- screen_info.vesapm_seg = 0;
-#endif
-
- if (!request_mem_region(vesafb_fix.smem_start, size_total, "vesafb")) {
- printk(KERN_WARNING
- "vesafb: cannot reserve video memory at 0x%lx\n",
- vesafb_fix.smem_start);
- /* We cannot make this fatal. Sometimes this comes from magic
- spaces our resource handlers simply don't know about */
- }
-
- info = framebuffer_alloc(sizeof(u32) * 256, &dev->dev);
- if (!info) {
- release_mem_region(vesafb_fix.smem_start, size_total);
- return -ENOMEM;
- }
- info->pseudo_palette = info->par;
- info->par = NULL;
-
- /* set vesafb aperture size for generic probing */
- info->apertures = alloc_apertures(1);
- if (!info->apertures) {
- err = -ENOMEM;
- goto err;
- }
- info->apertures->ranges[0].base = screen_info.lfb_base;
- info->apertures->ranges[0].size = size_total;
-
- printk(KERN_INFO "vesafb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
- vesafb_defined.xres, vesafb_defined.yres, vesafb_defined.bits_per_pixel, vesafb_fix.line_length, screen_info.pages);
-
- if (screen_info.vesapm_seg) {
- printk(KERN_INFO "vesafb: protected mode interface info at %04x:%04x\n",
- screen_info.vesapm_seg,screen_info.vesapm_off);
- }
-
- if (screen_info.vesapm_seg < 0xc000)
- ypan = pmi_setpal = 0; /* not available or some DOS TSR ... */
-
- if (ypan || pmi_setpal) {
- unsigned short *pmi_base;
- pmi_base = (unsigned short*)phys_to_virt(((unsigned long)screen_info.vesapm_seg << 4) + screen_info.vesapm_off);
- pmi_start = (void*)((char*)pmi_base + pmi_base[1]);
- pmi_pal = (void*)((char*)pmi_base + pmi_base[2]);
- printk(KERN_INFO "vesafb: pmi: set display start = %p, set palette = %p\n",pmi_start,pmi_pal);
- if (pmi_base[3]) {
- printk(KERN_INFO "vesafb: pmi: ports = ");
- for (i = pmi_base[3]/2; pmi_base[i] != 0xffff; i++)
- printk("%x ",pmi_base[i]);
- printk("\n");
- if (pmi_base[i] != 0xffff) {
- /*
- * memory areas not supported (yet?)
- *
- * Rules are: we have to set up a descriptor for the requested
- * memory area and pass it in the ES register to the BIOS function.
- */
- printk(KERN_INFO "vesafb: can't handle memory requests, pmi disabled\n");
- ypan = pmi_setpal = 0;
- }
- }
- }
-
- if (vesafb_defined.bits_per_pixel == 8 && !pmi_setpal && !vga_compat) {
- printk(KERN_WARNING "vesafb: hardware palette is unchangeable,\n"
- " colors may be incorrect\n");
- vesafb_fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR;
- }
-
- vesafb_defined.xres_virtual = vesafb_defined.xres;
- vesafb_defined.yres_virtual = vesafb_fix.smem_len / vesafb_fix.line_length;
- if (ypan && vesafb_defined.yres_virtual > vesafb_defined.yres) {
- printk(KERN_INFO "vesafb: scrolling: %s using protected mode interface, yres_virtual=%d\n",
- (ypan > 1) ? "ywrap" : "ypan",vesafb_defined.yres_virtual);
- } else {
- printk(KERN_INFO "vesafb: scrolling: redraw\n");
- vesafb_defined.yres_virtual = vesafb_defined.yres;
- ypan = 0;
- }
-
- /* some dummy values for timing to make fbset happy */
- vesafb_defined.pixclock = 10000000 / vesafb_defined.xres * 1000 / vesafb_defined.yres;
- vesafb_defined.left_margin = (vesafb_defined.xres / 8) & 0xf8;
- vesafb_defined.hsync_len = (vesafb_defined.xres / 8) & 0xf8;
-
- vesafb_defined.red.offset = screen_info.red_pos;
- vesafb_defined.red.length = screen_info.red_size;
- vesafb_defined.green.offset = screen_info.green_pos;
- vesafb_defined.green.length = screen_info.green_size;
- vesafb_defined.blue.offset = screen_info.blue_pos;
- vesafb_defined.blue.length = screen_info.blue_size;
- vesafb_defined.transp.offset = screen_info.rsvd_pos;
- vesafb_defined.transp.length = screen_info.rsvd_size;
-
- if (vesafb_defined.bits_per_pixel <= 8) {
- depth = vesafb_defined.green.length;
- vesafb_defined.red.length =
- vesafb_defined.green.length =
- vesafb_defined.blue.length =
- vesafb_defined.bits_per_pixel;
- }
-
- printk(KERN_INFO "vesafb: %s: "
- "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
- (vesafb_defined.bits_per_pixel > 8) ?
- "Truecolor" : (vga_compat || pmi_setpal) ?
- "Pseudocolor" : "Static Pseudocolor",
- screen_info.rsvd_size,
- screen_info.red_size,
- screen_info.green_size,
- screen_info.blue_size,
- screen_info.rsvd_pos,
- screen_info.red_pos,
- screen_info.green_pos,
- screen_info.blue_pos);
-
- vesafb_fix.ypanstep = ypan ? 1 : 0;
- vesafb_fix.ywrapstep = (ypan>1) ? 1 : 0;
-
- /* request failure does not faze us, as vgacon probably has this
- * region already (FIXME) */
- request_region(0x3c0, 32, "vesafb");
-
-#ifdef CONFIG_MTRR
- if (mtrr) {
- unsigned int temp_size = size_total;
- unsigned int type = 0;
-
- switch (mtrr) {
- case 1:
- type = MTRR_TYPE_UNCACHABLE;
- break;
- case 2:
- type = MTRR_TYPE_WRBACK;
- break;
- case 3:
- type = MTRR_TYPE_WRCOMB;
- break;
- case 4:
- type = MTRR_TYPE_WRTHROUGH;
- break;
- default:
- type = 0;
- break;
- }
-
- if (type) {
- int rc;
-
- /* Find the largest power-of-two */
- temp_size = roundup_pow_of_two(temp_size);
-
- /* Try and find a power of two to add */
- do {
- rc = mtrr_add(vesafb_fix.smem_start, temp_size,
- type, 1);
- temp_size >>= 1;
- } while (temp_size >= PAGE_SIZE && rc == -EINVAL);
- }
- }
-#endif
-
- switch (mtrr) {
- case 1: /* uncachable */
- info->screen_base = ioremap_nocache(vesafb_fix.smem_start, vesafb_fix.smem_len);
- break;
- case 2: /* write-back */
- info->screen_base = ioremap_cache(vesafb_fix.smem_start, vesafb_fix.smem_len);
- break;
- case 3: /* write-combining */
- info->screen_base = ioremap_wc(vesafb_fix.smem_start, vesafb_fix.smem_len);
- break;
- case 4: /* write-through */
- default:
- info->screen_base = ioremap(vesafb_fix.smem_start, vesafb_fix.smem_len);
- break;
- }
- if (!info->screen_base) {
- printk(KERN_ERR
- "vesafb: abort, cannot ioremap video memory 0x%x @ 0x%lx\n",
- vesafb_fix.smem_len, vesafb_fix.smem_start);
- err = -EIO;
- goto err;
- }
-
- printk(KERN_INFO "vesafb: framebuffer at 0x%lx, mapped to 0x%p, "
- "using %dk, total %dk\n",
- vesafb_fix.smem_start, info->screen_base,
- size_remap/1024, size_total/1024);
-
- info->fbops = &vesafb_ops;
- info->var = vesafb_defined;
- info->fix = vesafb_fix;
- info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE |
- (ypan ? FBINFO_HWACCEL_YPAN : 0);
-
- if (!ypan)
- info->fbops->fb_pan_display = NULL;
-
- if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
- err = -ENOMEM;
- goto err;
- }
- if (register_framebuffer(info)<0) {
- err = -EINVAL;
- fb_dealloc_cmap(&info->cmap);
- goto err;
- }
- fb_info(info, "%s frame buffer device\n", info->fix.id);
- return 0;
-err:
- if (info->screen_base)
- iounmap(info->screen_base);
- framebuffer_release(info);
- release_mem_region(vesafb_fix.smem_start, size_total);
- return err;
-}
-
-static struct platform_driver vesafb_driver = {
- .driver = {
- .name = "vesa-framebuffer",
- .owner = THIS_MODULE,
- },
- .probe = vesafb_probe,
-};
-
-module_platform_driver(vesafb_driver);
-MODULE_LICENSE("GPL");
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