diff options
author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-02-13 15:31:38 +0200 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2014-04-17 08:10:19 +0300 |
commit | f7018c21350204c4cf628462f229d44d03545254 (patch) | |
tree | 408787177164cf51cc06f7aabdb04fcff8d2b6aa /drivers/video/efifb.c | |
parent | c26ef3eb3c11274bad1b64498d0a134f85755250 (diff) | |
download | linux-f7018c21350204c4cf628462f229d44d03545254.tar.gz linux-f7018c21350204c4cf628462f229d44d03545254.tar.bz2 linux-f7018c21350204c4cf628462f229d44d03545254.zip |
video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.
Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.
No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/video/efifb.c')
-rw-r--r-- | drivers/video/efifb.c | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c deleted file mode 100644 index ae9618ff6735..000000000000 --- a/drivers/video/efifb.c +++ /dev/null @@ -1,360 +0,0 @@ -/* - * Framebuffer driver for EFI/UEFI based system - * - * (c) 2006 Edgar Hucek <gimli@dark-green.com> - * Original efi driver written by Gerd Knorr <kraxel@goldbach.in-berlin.de> - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/fb.h> -#include <linux/platform_device.h> -#include <linux/screen_info.h> -#include <linux/dmi.h> -#include <linux/pci.h> -#include <video/vga.h> -#include <asm/sysfb.h> - -static bool request_mem_succeeded = false; - -static struct pci_dev *default_vga; - -static struct fb_var_screeninfo efifb_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 efifb_fix = { - .id = "EFI VGA", - .type = FB_TYPE_PACKED_PIXELS, - .accel = FB_ACCEL_NONE, - .visual = FB_VISUAL_TRUECOLOR, -}; - -static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green, - unsigned blue, unsigned transp, - struct fb_info *info) -{ - /* - * 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 (regno < 16) { - 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); - } - return 0; -} - -static void efifb_destroy(struct fb_info *info) -{ - if (info->screen_base) - iounmap(info->screen_base); - if (request_mem_succeeded) - release_mem_region(info->apertures->ranges[0].base, - info->apertures->ranges[0].size); - fb_dealloc_cmap(&info->cmap); -} - -static struct fb_ops efifb_ops = { - .owner = THIS_MODULE, - .fb_destroy = efifb_destroy, - .fb_setcolreg = efifb_setcolreg, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, -}; - -struct pci_dev *vga_default_device(void) -{ - return default_vga; -} - -EXPORT_SYMBOL_GPL(vga_default_device); - -void vga_set_default_device(struct pci_dev *pdev) -{ - default_vga = pdev; -} - -static int efifb_setup(char *options) -{ - char *this_opt; - int i; - struct pci_dev *dev = NULL; - - if (options && *options) { - while ((this_opt = strsep(&options, ",")) != NULL) { - if (!*this_opt) continue; - - for (i = 0; i < M_UNKNOWN; i++) { - if (efifb_dmi_list[i].base != 0 && - !strcmp(this_opt, efifb_dmi_list[i].optname)) { - screen_info.lfb_base = efifb_dmi_list[i].base; - screen_info.lfb_linelength = efifb_dmi_list[i].stride; - screen_info.lfb_width = efifb_dmi_list[i].width; - screen_info.lfb_height = efifb_dmi_list[i].height; - } - } - if (!strncmp(this_opt, "base:", 5)) - screen_info.lfb_base = simple_strtoul(this_opt+5, NULL, 0); - else if (!strncmp(this_opt, "stride:", 7)) - screen_info.lfb_linelength = simple_strtoul(this_opt+7, NULL, 0) * 4; - else if (!strncmp(this_opt, "height:", 7)) - screen_info.lfb_height = simple_strtoul(this_opt+7, NULL, 0); - else if (!strncmp(this_opt, "width:", 6)) - screen_info.lfb_width = simple_strtoul(this_opt+6, NULL, 0); - } - } - - for_each_pci_dev(dev) { - int i; - - if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA) - continue; - - for (i=0; i < DEVICE_COUNT_RESOURCE; i++) { - resource_size_t start, end; - - if (!(pci_resource_flags(dev, i) & IORESOURCE_MEM)) - continue; - - start = pci_resource_start(dev, i); - end = pci_resource_end(dev, i); - - if (!start || !end) - continue; - - if (screen_info.lfb_base >= start && - (screen_info.lfb_base + screen_info.lfb_size) < end) - default_vga = dev; - } - } - - return 0; -} - -static int efifb_probe(struct platform_device *dev) -{ - struct fb_info *info; - int err; - unsigned int size_vmode; - unsigned int size_remap; - unsigned int size_total; - char *option = NULL; - - if (screen_info.orig_video_isVGA != VIDEO_TYPE_EFI) - return -ENODEV; - - if (fb_get_options("efifb", &option)) - return -ENODEV; - efifb_setup(option); - - /* We don't get linelength from UGA Draw Protocol, only from - * EFI Graphics Protocol. So if it's not in DMI, and it's not - * passed in from the user, we really can't use the framebuffer. - */ - if (!screen_info.lfb_linelength) - return -ENODEV; - - if (!screen_info.lfb_depth) - screen_info.lfb_depth = 32; - if (!screen_info.pages) - screen_info.pages = 1; - if (!screen_info.lfb_base) { - printk(KERN_DEBUG "efifb: invalid framebuffer address\n"); - return -ENODEV; - } - printk(KERN_INFO "efifb: probing for efifb\n"); - - /* just assume they're all unset if any are */ - if (!screen_info.blue_size) { - screen_info.blue_size = 8; - screen_info.blue_pos = 0; - screen_info.green_size = 8; - screen_info.green_pos = 8; - screen_info.red_size = 8; - screen_info.red_pos = 16; - screen_info.rsvd_size = 8; - screen_info.rsvd_pos = 24; - } - - efifb_fix.smem_start = screen_info.lfb_base; - efifb_defined.bits_per_pixel = screen_info.lfb_depth; - efifb_defined.xres = screen_info.lfb_width; - efifb_defined.yres = screen_info.lfb_height; - efifb_fix.line_length = screen_info.lfb_linelength; - - /* 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 = efifb_defined.yres * efifb_fix.line_length; - - /* size_total -- all video memory we have. Used for - * entries, ressource allocation and bounds - * checking. */ - size_total = screen_info.lfb_size; - if (size_total < size_vmode) - size_total = size_vmode; - - /* size_remap -- the amount of video memory we are going to - * use for efifb. 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 (size_remap > size_total) - size_remap = size_total; - if (size_remap % PAGE_SIZE) - size_remap += PAGE_SIZE - (size_remap % PAGE_SIZE); - efifb_fix.smem_len = size_remap; - - if (request_mem_region(efifb_fix.smem_start, size_remap, "efifb")) { - request_mem_succeeded = true; - } else { - /* We cannot make this fatal. Sometimes this comes from magic - spaces our resource handlers simply don't know about */ - printk(KERN_WARNING - "efifb: cannot reserve video memory at 0x%lx\n", - efifb_fix.smem_start); - } - - info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev); - if (!info) { - printk(KERN_ERR "efifb: cannot allocate framebuffer\n"); - err = -ENOMEM; - goto err_release_mem; - } - platform_set_drvdata(dev, info); - info->pseudo_palette = info->par; - info->par = NULL; - - info->apertures = alloc_apertures(1); - if (!info->apertures) { - err = -ENOMEM; - goto err_release_fb; - } - info->apertures->ranges[0].base = efifb_fix.smem_start; - info->apertures->ranges[0].size = size_remap; - - info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len); - if (!info->screen_base) { - printk(KERN_ERR "efifb: abort, cannot ioremap video memory " - "0x%x @ 0x%lx\n", - efifb_fix.smem_len, efifb_fix.smem_start); - err = -EIO; - goto err_release_fb; - } - - printk(KERN_INFO "efifb: framebuffer at 0x%lx, mapped to 0x%p, " - "using %dk, total %dk\n", - efifb_fix.smem_start, info->screen_base, - size_remap/1024, size_total/1024); - printk(KERN_INFO "efifb: mode is %dx%dx%d, linelength=%d, pages=%d\n", - efifb_defined.xres, efifb_defined.yres, - efifb_defined.bits_per_pixel, efifb_fix.line_length, - screen_info.pages); - - efifb_defined.xres_virtual = efifb_defined.xres; - efifb_defined.yres_virtual = efifb_fix.smem_len / - efifb_fix.line_length; - printk(KERN_INFO "efifb: scrolling: redraw\n"); - efifb_defined.yres_virtual = efifb_defined.yres; - - /* some dummy values for timing to make fbset happy */ - efifb_defined.pixclock = 10000000 / efifb_defined.xres * - 1000 / efifb_defined.yres; - efifb_defined.left_margin = (efifb_defined.xres / 8) & 0xf8; - efifb_defined.hsync_len = (efifb_defined.xres / 8) & 0xf8; - - efifb_defined.red.offset = screen_info.red_pos; - efifb_defined.red.length = screen_info.red_size; - efifb_defined.green.offset = screen_info.green_pos; - efifb_defined.green.length = screen_info.green_size; - efifb_defined.blue.offset = screen_info.blue_pos; - efifb_defined.blue.length = screen_info.blue_size; - efifb_defined.transp.offset = screen_info.rsvd_pos; - efifb_defined.transp.length = screen_info.rsvd_size; - - printk(KERN_INFO "efifb: %s: " - "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n", - "Truecolor", - 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); - - efifb_fix.ypanstep = 0; - efifb_fix.ywrapstep = 0; - - info->fbops = &efifb_ops; - info->var = efifb_defined; - info->fix = efifb_fix; - info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE; - - if ((err = fb_alloc_cmap(&info->cmap, 256, 0)) < 0) { - printk(KERN_ERR "efifb: cannot allocate colormap\n"); - goto err_unmap; - } - if ((err = register_framebuffer(info)) < 0) { - printk(KERN_ERR "efifb: cannot register framebuffer\n"); - goto err_fb_dealoc; - } - fb_info(info, "%s frame buffer device\n", info->fix.id); - return 0; - -err_fb_dealoc: - fb_dealloc_cmap(&info->cmap); -err_unmap: - iounmap(info->screen_base); -err_release_fb: - framebuffer_release(info); -err_release_mem: - if (request_mem_succeeded) - release_mem_region(efifb_fix.smem_start, size_total); - return err; -} - -static int efifb_remove(struct platform_device *pdev) -{ - struct fb_info *info = platform_get_drvdata(pdev); - - unregister_framebuffer(info); - framebuffer_release(info); - - return 0; -} - -static struct platform_driver efifb_driver = { - .driver = { - .name = "efi-framebuffer", - .owner = THIS_MODULE, - }, - .probe = efifb_probe, - .remove = efifb_remove, -}; - -module_platform_driver(efifb_driver); -MODULE_LICENSE("GPL"); |