#include <linux/mman.h>
#include <linux/vt.h>
#include <linux/init.h>
-#include <linux/linux_logo.h>
#include <linux/platform_device.h>
#include <linux/console.h>
#include <linux/kmod.h>
for (i = 0; i < FB_MAX; i++) \
if (!registered_fb[i]) {} else
-bool fb_center_logo __read_mostly;
-
-int fb_logo_count __read_mostly = -1;
-
struct fb_info *get_fb_info(unsigned int idx)
{
struct fb_info *fb_info;
}
EXPORT_SYMBOL(fb_get_buffer_offset);
-#ifdef CONFIG_LOGO
-
-static inline unsigned int safe_shift(unsigned int d, int n)
-{
- return n < 0 ? d >> -n : d << n;
-}
-
-static void fb_set_logocmap(struct fb_info *info,
- const struct linux_logo *logo)
-{
- struct fb_cmap palette_cmap;
- u16 palette_green[16];
- u16 palette_blue[16];
- u16 palette_red[16];
- int i, j, n;
- const unsigned char *clut = logo->clut;
-
- palette_cmap.start = 0;
- palette_cmap.len = 16;
- palette_cmap.red = palette_red;
- palette_cmap.green = palette_green;
- palette_cmap.blue = palette_blue;
- palette_cmap.transp = NULL;
-
- for (i = 0; i < logo->clutsize; i += n) {
- n = logo->clutsize - i;
- /* palette_cmap provides space for only 16 colors at once */
- if (n > 16)
- n = 16;
- palette_cmap.start = 32 + i;
- palette_cmap.len = n;
- for (j = 0; j < n; ++j) {
- palette_cmap.red[j] = clut[0] << 8 | clut[0];
- palette_cmap.green[j] = clut[1] << 8 | clut[1];
- palette_cmap.blue[j] = clut[2] << 8 | clut[2];
- clut += 3;
- }
- fb_set_cmap(&palette_cmap, info);
- }
-}
-
-static void fb_set_logo_truepalette(struct fb_info *info,
- const struct linux_logo *logo,
- u32 *palette)
-{
- static const unsigned char mask[] = {
- 0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff
- };
- unsigned char redmask, greenmask, bluemask;
- int redshift, greenshift, blueshift;
- int i;
- const unsigned char *clut = logo->clut;
-
- /*
- * We have to create a temporary palette since console palette is only
- * 16 colors long.
- */
- /* Bug: Doesn't obey msb_right ... (who needs that?) */
- redmask = mask[info->var.red.length < 8 ? info->var.red.length : 8];
- greenmask = mask[info->var.green.length < 8 ? info->var.green.length : 8];
- bluemask = mask[info->var.blue.length < 8 ? info->var.blue.length : 8];
- redshift = info->var.red.offset - (8 - info->var.red.length);
- greenshift = info->var.green.offset - (8 - info->var.green.length);
- blueshift = info->var.blue.offset - (8 - info->var.blue.length);
-
- for (i = 0; i < logo->clutsize; i++) {
- palette[i+32] = (safe_shift((clut[0] & redmask), redshift) |
- safe_shift((clut[1] & greenmask), greenshift) |
- safe_shift((clut[2] & bluemask), blueshift));
- clut += 3;
- }
-}
-
-static void fb_set_logo_directpalette(struct fb_info *info,
- const struct linux_logo *logo,
- u32 *palette)
-{
- int redshift, greenshift, blueshift;
- int i;
-
- redshift = info->var.red.offset;
- greenshift = info->var.green.offset;
- blueshift = info->var.blue.offset;
-
- for (i = 32; i < 32 + logo->clutsize; i++)
- palette[i] = i << redshift | i << greenshift | i << blueshift;
-}
-
-static void fb_set_logo(struct fb_info *info,
- const struct linux_logo *logo, u8 *dst,
- int depth)
-{
- int i, j, k;
- const u8 *src = logo->data;
- u8 xor = (info->fix.visual == FB_VISUAL_MONO01) ? 0xff : 0;
- u8 fg = 1, d;
-
- switch (fb_get_color_depth(&info->var, &info->fix)) {
- case 1:
- fg = 1;
- break;
- case 2:
- fg = 3;
- break;
- default:
- fg = 7;
- break;
- }
-
- if (info->fix.visual == FB_VISUAL_MONO01 ||
- info->fix.visual == FB_VISUAL_MONO10)
- fg = ~((u8) (0xfff << info->var.green.length));
-
- switch (depth) {
- case 4:
- for (i = 0; i < logo->height; i++)
- for (j = 0; j < logo->width; src++) {
- *dst++ = *src >> 4;
- j++;
- if (j < logo->width) {
- *dst++ = *src & 0x0f;
- j++;
- }
- }
- break;
- case 1:
- for (i = 0; i < logo->height; i++) {
- for (j = 0; j < logo->width; src++) {
- d = *src ^ xor;
- for (k = 7; k >= 0 && j < logo->width; k--) {
- *dst++ = ((d >> k) & 1) ? fg : 0;
- j++;
- }
- }
- }
- break;
- }
-}
-
-/*
- * Three (3) kinds of logo maps exist. linux_logo_clut224 (>16 colors),
- * linux_logo_vga16 (16 colors) and linux_logo_mono (2 colors). Depending on
- * the visual format and color depth of the framebuffer, the DAC, the
- * pseudo_palette, and the logo data will be adjusted accordingly.
- *
- * Case 1 - linux_logo_clut224:
- * Color exceeds the number of console colors (16), thus we set the hardware DAC
- * using fb_set_cmap() appropriately. The "needs_cmapreset" flag will be set.
- *
- * For visuals that require color info from the pseudo_palette, we also construct
- * one for temporary use. The "needs_directpalette" or "needs_truepalette" flags
- * will be set.
- *
- * Case 2 - linux_logo_vga16:
- * The number of colors just matches the console colors, thus there is no need
- * to set the DAC or the pseudo_palette. However, the bitmap is packed, ie,
- * each byte contains color information for two pixels (upper and lower nibble).
- * To be consistent with fb_imageblit() usage, we therefore separate the two
- * nibbles into separate bytes. The "depth" flag will be set to 4.
- *
- * Case 3 - linux_logo_mono:
- * This is similar with Case 2. Each byte contains information for 8 pixels.
- * We isolate each bit and expand each into a byte. The "depth" flag will
- * be set to 1.
- */
-static struct logo_data {
- int depth;
- int needs_directpalette;
- int needs_truepalette;
- int needs_cmapreset;
- const struct linux_logo *logo;
-} fb_logo __read_mostly;
-
-static void fb_rotate_logo_ud(const u8 *in, u8 *out, u32 width, u32 height)
-{
- u32 size = width * height, i;
-
- out += size - 1;
-
- for (i = size; i--; )
- *out-- = *in++;
-}
-
-static void fb_rotate_logo_cw(const u8 *in, u8 *out, u32 width, u32 height)
-{
- int i, j, h = height - 1;
-
- for (i = 0; i < height; i++)
- for (j = 0; j < width; j++)
- out[height * j + h - i] = *in++;
-}
-
-static void fb_rotate_logo_ccw(const u8 *in, u8 *out, u32 width, u32 height)
-{
- int i, j, w = width - 1;
-
- for (i = 0; i < height; i++)
- for (j = 0; j < width; j++)
- out[height * (w - j) + i] = *in++;
-}
-
-static void fb_rotate_logo(struct fb_info *info, u8 *dst,
- struct fb_image *image, int rotate)
-{
- u32 tmp;
-
- if (rotate == FB_ROTATE_UD) {
- fb_rotate_logo_ud(image->data, dst, image->width,
- image->height);
- image->dx = info->var.xres - image->width - image->dx;
- image->dy = info->var.yres - image->height - image->dy;
- } else if (rotate == FB_ROTATE_CW) {
- fb_rotate_logo_cw(image->data, dst, image->width,
- image->height);
- swap(image->width, image->height);
- tmp = image->dy;
- image->dy = image->dx;
- image->dx = info->var.xres - image->width - tmp;
- } else if (rotate == FB_ROTATE_CCW) {
- fb_rotate_logo_ccw(image->data, dst, image->width,
- image->height);
- swap(image->width, image->height);
- tmp = image->dx;
- image->dx = image->dy;
- image->dy = info->var.yres - image->height - tmp;
- }
-
- image->data = dst;
-}
-
-static void fb_do_show_logo(struct fb_info *info, struct fb_image *image,
- int rotate, unsigned int num)
-{
- unsigned int x;
-
- if (image->width > info->var.xres || image->height > info->var.yres)
- return;
-
- if (rotate == FB_ROTATE_UR) {
- for (x = 0;
- x < num && image->dx + image->width <= info->var.xres;
- x++) {
- info->fbops->fb_imageblit(info, image);
- image->dx += image->width + 8;
- }
- } else if (rotate == FB_ROTATE_UD) {
- u32 dx = image->dx;
-
- for (x = 0; x < num && image->dx <= dx; x++) {
- info->fbops->fb_imageblit(info, image);
- image->dx -= image->width + 8;
- }
- } else if (rotate == FB_ROTATE_CW) {
- for (x = 0;
- x < num && image->dy + image->height <= info->var.yres;
- x++) {
- info->fbops->fb_imageblit(info, image);
- image->dy += image->height + 8;
- }
- } else if (rotate == FB_ROTATE_CCW) {
- u32 dy = image->dy;
-
- for (x = 0; x < num && image->dy <= dy; x++) {
- info->fbops->fb_imageblit(info, image);
- image->dy -= image->height + 8;
- }
- }
-}
-
-static int fb_show_logo_line(struct fb_info *info, int rotate,
- const struct linux_logo *logo, int y,
- unsigned int n)
-{
- u32 *palette = NULL, *saved_pseudo_palette = NULL;
- unsigned char *logo_new = NULL, *logo_rotate = NULL;
- struct fb_image image;
-
- /* Return if the frame buffer is not mapped or suspended */
- if (logo == NULL || info->state != FBINFO_STATE_RUNNING ||
- info->fbops->owner)
- return 0;
-
- image.depth = 8;
- image.data = logo->data;
-
- if (fb_logo.needs_cmapreset)
- fb_set_logocmap(info, logo);
-
- if (fb_logo.needs_truepalette ||
- fb_logo.needs_directpalette) {
- palette = kmalloc(256 * 4, GFP_KERNEL);
- if (palette == NULL)
- return 0;
-
- if (fb_logo.needs_truepalette)
- fb_set_logo_truepalette(info, logo, palette);
- else
- fb_set_logo_directpalette(info, logo, palette);
-
- saved_pseudo_palette = info->pseudo_palette;
- info->pseudo_palette = palette;
- }
-
- if (fb_logo.depth <= 4) {
- logo_new = kmalloc_array(logo->width, logo->height,
- GFP_KERNEL);
- if (logo_new == NULL) {
- kfree(palette);
- if (saved_pseudo_palette)
- info->pseudo_palette = saved_pseudo_palette;
- return 0;
- }
- image.data = logo_new;
- fb_set_logo(info, logo, logo_new, fb_logo.depth);
- }
-
- if (fb_center_logo) {
- int xres = info->var.xres;
- int yres = info->var.yres;
-
- if (rotate == FB_ROTATE_CW || rotate == FB_ROTATE_CCW) {
- xres = info->var.yres;
- yres = info->var.xres;
- }
-
- while (n && (n * (logo->width + 8) - 8 > xres))
- --n;
- image.dx = (xres - (n * (logo->width + 8) - 8)) / 2;
- image.dy = y ?: (yres - logo->height) / 2;
- } else {
- image.dx = 0;
- image.dy = y;
- }
-
- image.width = logo->width;
- image.height = logo->height;
-
- if (rotate) {
- logo_rotate = kmalloc_array(logo->width, logo->height,
- GFP_KERNEL);
- if (logo_rotate)
- fb_rotate_logo(info, logo_rotate, &image, rotate);
- }
-
- fb_do_show_logo(info, &image, rotate, n);
-
- kfree(palette);
- if (saved_pseudo_palette != NULL)
- info->pseudo_palette = saved_pseudo_palette;
- kfree(logo_new);
- kfree(logo_rotate);
- return image.dy + logo->height;
-}
-
-
-#ifdef CONFIG_FB_LOGO_EXTRA
-
-#define FB_LOGO_EX_NUM_MAX 10
-static struct logo_data_extra {
- const struct linux_logo *logo;
- unsigned int n;
-} fb_logo_ex[FB_LOGO_EX_NUM_MAX];
-static unsigned int fb_logo_ex_num;
-
-void fb_append_extra_logo(const struct linux_logo *logo, unsigned int n)
-{
- if (!n || fb_logo_ex_num == FB_LOGO_EX_NUM_MAX)
- return;
-
- fb_logo_ex[fb_logo_ex_num].logo = logo;
- fb_logo_ex[fb_logo_ex_num].n = n;
- fb_logo_ex_num++;
-}
-
-static int fb_prepare_extra_logos(struct fb_info *info, unsigned int height,
- unsigned int yres)
-{
- unsigned int i;
-
- /* FIXME: logo_ex supports only truecolor fb. */
- if (info->fix.visual != FB_VISUAL_TRUECOLOR)
- fb_logo_ex_num = 0;
-
- for (i = 0; i < fb_logo_ex_num; i++) {
- if (fb_logo_ex[i].logo->type != fb_logo.logo->type) {
- fb_logo_ex[i].logo = NULL;
- continue;
- }
- height += fb_logo_ex[i].logo->height;
- if (height > yres) {
- height -= fb_logo_ex[i].logo->height;
- fb_logo_ex_num = i;
- break;
- }
- }
- return height;
-}
-
-static int fb_show_extra_logos(struct fb_info *info, int y, int rotate)
-{
- unsigned int i;
-
- for (i = 0; i < fb_logo_ex_num; i++)
- y = fb_show_logo_line(info, rotate,
- fb_logo_ex[i].logo, y, fb_logo_ex[i].n);
-
- return y;
-}
-
-#else /* !CONFIG_FB_LOGO_EXTRA */
-
-static inline int fb_prepare_extra_logos(struct fb_info *info,
- unsigned int height,
- unsigned int yres)
-{
- return height;
-}
-
-static inline int fb_show_extra_logos(struct fb_info *info, int y, int rotate)
-{
- return y;
-}
-
-#endif /* CONFIG_FB_LOGO_EXTRA */
-
-
-int fb_prepare_logo(struct fb_info *info, int rotate)
-{
- int depth = fb_get_color_depth(&info->var, &info->fix);
- unsigned int yres;
- int height;
-
- memset(&fb_logo, 0, sizeof(struct logo_data));
-
- if (info->flags & FBINFO_MISC_TILEBLITTING ||
- info->fbops->owner || !fb_logo_count)
- return 0;
-
- if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
- depth = info->var.blue.length;
- if (info->var.red.length < depth)
- depth = info->var.red.length;
- if (info->var.green.length < depth)
- depth = info->var.green.length;
- }
-
- if (info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR && depth > 4) {
- /* assume console colormap */
- depth = 4;
- }
-
- /* Return if no suitable logo was found */
- fb_logo.logo = fb_find_logo(depth);
-
- if (!fb_logo.logo)
- return 0;
-
- if (rotate == FB_ROTATE_UR || rotate == FB_ROTATE_UD)
- yres = info->var.yres;
- else
- yres = info->var.xres;
-
- if (fb_logo.logo->height > yres) {
- fb_logo.logo = NULL;
- return 0;
- }
-
- /* What depth we asked for might be different from what we get */
- if (fb_logo.logo->type == LINUX_LOGO_CLUT224)
- fb_logo.depth = 8;
- else if (fb_logo.logo->type == LINUX_LOGO_VGA16)
- fb_logo.depth = 4;
- else
- fb_logo.depth = 1;
-
-
- if (fb_logo.depth > 4 && depth > 4) {
- switch (info->fix.visual) {
- case FB_VISUAL_TRUECOLOR:
- fb_logo.needs_truepalette = 1;
- break;
- case FB_VISUAL_DIRECTCOLOR:
- fb_logo.needs_directpalette = 1;
- fb_logo.needs_cmapreset = 1;
- break;
- case FB_VISUAL_PSEUDOCOLOR:
- fb_logo.needs_cmapreset = 1;
- break;
- }
- }
-
- height = fb_logo.logo->height;
- if (fb_center_logo)
- height += (yres - fb_logo.logo->height) / 2;
-
- return fb_prepare_extra_logos(info, height, yres);
-}
-
-int fb_show_logo(struct fb_info *info, int rotate)
-{
- unsigned int count;
- int y;
-
- if (!fb_logo_count)
- return 0;
-
- count = fb_logo_count < 0 ? num_online_cpus() : fb_logo_count;
- y = fb_show_logo_line(info, rotate, fb_logo.logo, 0, count);
- y = fb_show_extra_logos(info, y, rotate);
-
- return y;
-}
-#endif /* CONFIG_LOGO */
-
int
fb_pan_display(struct fb_info *info, struct fb_var_screeninfo *var)
{
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