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path: root/drivers/video/efifb.c
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Diffstat (limited to 'drivers/video/efifb.c')
-rw-r--r--drivers/video/efifb.c508
1 files changed, 0 insertions, 508 deletions
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
deleted file mode 100644
index 70477c2e4b6..00000000000
--- a/drivers/video/efifb.c
+++ /dev/null
@@ -1,508 +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>
-
-static struct fb_var_screeninfo efifb_defined __devinitdata = {
- .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 __devinitdata = {
- .id = "EFI VGA",
- .type = FB_TYPE_PACKED_PIXELS,
- .accel = FB_ACCEL_NONE,
- .visual = FB_VISUAL_TRUECOLOR,
-};
-
-enum {
- M_I17, /* 17-Inch iMac */
- M_I20, /* 20-Inch iMac */
- M_I20_SR, /* 20-Inch iMac (Santa Rosa) */
- M_I24, /* 24-Inch iMac */
- M_I24_8_1, /* 24-Inch iMac, 8,1th gen */
- M_I24_10_1, /* 24-Inch iMac, 10,1th gen */
- M_I27_11_1, /* 27-Inch iMac, 11,1th gen */
- M_MINI, /* Mac Mini */
- M_MINI_3_1, /* Mac Mini, 3,1th gen */
- M_MINI_4_1, /* Mac Mini, 4,1th gen */
- M_MB, /* MacBook */
- M_MB_2, /* MacBook, 2nd rev. */
- M_MB_3, /* MacBook, 3rd rev. */
- M_MB_5_1, /* MacBook, 5th rev. */
- M_MB_6_1, /* MacBook, 6th rev. */
- M_MB_7_1, /* MacBook, 7th rev. */
- M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */
- M_MBA, /* MacBook Air */
- M_MBP, /* MacBook Pro */
- M_MBP_2, /* MacBook Pro 2nd gen */
- M_MBP_2_2, /* MacBook Pro 2,2nd gen */
- M_MBP_SR, /* MacBook Pro (Santa Rosa) */
- M_MBP_4, /* MacBook Pro, 4th gen */
- M_MBP_5_1, /* MacBook Pro, 5,1th gen */
- M_MBP_5_2, /* MacBook Pro, 5,2th gen */
- M_MBP_5_3, /* MacBook Pro, 5,3rd gen */
- M_MBP_6_1, /* MacBook Pro, 6,1th gen */
- M_MBP_6_2, /* MacBook Pro, 6,2th gen */
- M_MBP_7_1, /* MacBook Pro, 7,1th gen */
- M_UNKNOWN /* placeholder */
-};
-
-static struct efifb_dmi_info {
- char *optname;
- unsigned long base;
- int stride;
- int width;
- int height;
-} dmi_list[] __initdata = {
- [M_I17] = { "i17", 0x80010000, 1472 * 4, 1440, 900 },
- [M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050 }, /* guess */
- [M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050 },
- [M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200 }, /* guess */
- [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200 },
- [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080 },
- [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440 },
- [M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768 },
- [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768 },
- [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200 },
- [M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800 },
- [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800 },
- [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800 },
- [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800 },
- [M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800 },
- [M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900 },
- [M_MBP_2] = { "mbp2", 0, 0, 0, 0 }, /* placeholder */
- [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900 },
- [M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900 },
- [M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200 },
- [M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900 },
- [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200 },
- [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900 },
- [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200 },
- [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050 },
- [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800 },
- [M_UNKNOWN] = { NULL, 0, 0, 0, 0 }
-};
-
-static int set_system(const struct dmi_system_id *id);
-
-#define EFIFB_DMI_SYSTEM_ID(vendor, name, enumid) \
- { set_system, name, { \
- DMI_MATCH(DMI_BIOS_VENDOR, vendor), \
- DMI_MATCH(DMI_PRODUCT_NAME, name) }, \
- &dmi_list[enumid] }
-
-static const struct dmi_system_id dmi_system_table[] __initconst = {
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac4,1", M_I17),
- /* At least one of these two will be right; maybe both? */
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac5,1", M_I20),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac5,1", M_I20),
- /* At least one of these two will be right; maybe both? */
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
- /* At least one of these two will be right; maybe both? */
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook2,1", M_MB),
- /* At least one of these two will be right; maybe both? */
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
- EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
- EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
- {},
-};
-
-static int set_system(const struct dmi_system_id *id)
-{
- struct efifb_dmi_info *info = id->driver_data;
- if (info->base == 0)
- return 0;
-
- printk(KERN_INFO "efifb: dmi detected %s - framebuffer at %p "
- "(%dx%d, stride %d)\n", id->ident,
- (void *)info->base, info->width, info->height,
- info->stride);
-
- /* Trust the bootloader over the DMI tables */
- if (screen_info.lfb_base == 0) {
-#if defined(CONFIG_PCI)
- struct pci_dev *dev = NULL;
- int found_bar = 0;
-#endif
- screen_info.lfb_base = info->base;
-
-#if defined(CONFIG_PCI)
- /* make sure that the address in the table is actually on a
- * VGA device's PCI BAR */
-
- 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;
-
- start = pci_resource_start(dev, i);
- if (start == 0)
- break;
- end = pci_resource_end(dev, i);
- if (screen_info.lfb_base >= start &&
- screen_info.lfb_base < end) {
- found_bar = 1;
- }
- }
- }
- if (!found_bar)
- screen_info.lfb_base = 0;
-#endif
- }
- if (screen_info.lfb_base) {
- if (screen_info.lfb_linelength == 0)
- screen_info.lfb_linelength = info->stride;
- if (screen_info.lfb_width == 0)
- screen_info.lfb_width = info->width;
- if (screen_info.lfb_height == 0)
- screen_info.lfb_height = info->height;
- if (screen_info.orig_video_isVGA == 0)
- screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
- } else {
- screen_info.lfb_linelength = 0;
- screen_info.lfb_width = 0;
- screen_info.lfb_height = 0;
- screen_info.orig_video_isVGA = 0;
- return 0;
- }
- return 1;
-}
-
-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);
- release_mem_region(info->apertures->ranges[0].base, info->apertures->ranges[0].size);
- framebuffer_release(info);
-}
-
-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,
-};
-
-static int __init efifb_setup(char *options)
-{
- char *this_opt;
- int i;
-
- if (!options || !*options)
- return 0;
-
- while ((this_opt = strsep(&options, ",")) != NULL) {
- if (!*this_opt) continue;
-
- for (i = 0; i < M_UNKNOWN; i++) {
- if (!strcmp(this_opt, dmi_list[i].optname) &&
- dmi_list[i].base != 0) {
- screen_info.lfb_base = dmi_list[i].base;
- screen_info.lfb_linelength = dmi_list[i].stride;
- screen_info.lfb_width = dmi_list[i].width;
- screen_info.lfb_height = 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);
- }
- return 0;
-}
-
-static int __devinit efifb_probe(struct platform_device *dev)
-{
- struct fb_info *info;
- int err;
- unsigned int size_vmode;
- unsigned int size_remap;
- unsigned int size_total;
- int request_succeeded = 0;
-
- 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_succeeded = 1;
- } 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;
- }
- 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(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;
- }
- printk(KERN_INFO "fb%d: %s frame buffer device\n",
- info->node, 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_succeeded)
- release_mem_region(efifb_fix.smem_start, size_total);
- return err;
-}
-
-static struct platform_driver efifb_driver = {
- .probe = efifb_probe,
- .driver = {
- .name = "efifb",
- },
-};
-
-static struct platform_device efifb_device = {
- .name = "efifb",
-};
-
-static int __init efifb_init(void)
-{
- int ret;
- char *option = NULL;
-
- dmi_check_system(dmi_system_table);
-
- 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;
-
- ret = platform_driver_register(&efifb_driver);
-
- if (!ret) {
- ret = platform_device_register(&efifb_device);
- if (ret)
- platform_driver_unregister(&efifb_driver);
- }
- return ret;
-}
-module_init(efifb_init);
-
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 22:28:08 +0000