[patch 2/4] fbdev: Add fb_append_extra_logo()

Geert Uytterhoeven
2007-07-16T14:02:16Z

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Add fb_append_extra_logo(), to append extra lines of logos below the standard
Linux logo.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-By: James Simmons <jsimmons@infradead.org>
---
Changes since last version:
- Introduce CONFIG_FB_LOGO_EXTRA to protect all new code
- Move fb_prepare_logo() down to satisfy declaration dependencies

drivers/video/fbmem.c | 210 ++++++++++++++++++++++++++++++---------------
drivers/video/logo/Kconfig | 4
include/linux/linux_logo.h | 8 +
3 files changed, 154 insertions(+), 68 deletions(-)

--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -411,72 +411,6 @@ static void fb_do_show_logo(struct fb_in
}
}

-int fb_prepare_logo(struct fb_info *info, int rotate)
-{
- int depth = fb_get_color_depth(&info->var, &info->fix);
- int yres;
-
- memset(&fb_logo, 0, sizeof(struct logo_data));
-
- if (info->flags & FBINFO_MISC_TILEBLITTING ||
- info->flags & FBINFO_MODULE)
- 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;
- }
-
- if (depth >= 8) {
- 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;
- }
- }
-
- /* 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;
- return fb_logo.logo->height;
-}
-
static int fb_show_logo_line(struct fb_info *info, int rotate,
const struct linux_logo *logo, int y,
unsigned int n)
@@ -545,10 +479,150 @@ static int fb_show_logo_line(struct fb_i
return 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++) {
+ 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;
+
+ memset(&fb_logo, 0, sizeof(struct logo_data));
+
+ if (info->flags & FBINFO_MISC_TILEBLITTING ||
+ info->flags & FBINFO_MODULE)
+ 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;
+ }
+
+ if (depth >= 8) {
+ 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;
+ }
+ }
+
+ /* 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;
+
+ return fb_prepare_extra_logos(info, fb_logo.logo->height, yres);
+}
+
int fb_show_logo(struct fb_info *info, int rotate)
{
- return fb_show_logo_line(info, rotate, fb_logo.logo, 0,
- num_online_cpus());
+ int y;
+
+ y = fb_show_logo_line(info, rotate, fb_logo.logo, 0,
+ num_online_cpus());
+ y = fb_show_extra_logos(info, y, rotate);
+
+ return y;
}
#else
int fb_prepare_logo(struct fb_info *info, int rotate) { return 0; }
--- a/drivers/video/logo/Kconfig
+++ b/drivers/video/logo/Kconfig
@@ -10,6 +10,10 @@ menuconfig LOGO

if LOGO

+config FB_LOGO_EXTRA
+ bool
+ depends on FB
+
config LOGO_LINUX_MONO
bool "Standard black and white Linux logo"
default y
--- a/include/linux/linux_logo.h
+++ b/include/linux/linux_logo.h
@@ -33,5 +33,13 @@ struct linux_logo {
};

extern const struct linux_logo *fb_find_logo(int depth);
+#ifdef CONFIG_FB_LOGO_EXTRA
+extern void fb_append_extra_logo(const struct linux_logo *logo,
+ unsigned int n);
+#else
+static inline void fb_append_extra_logo(const struct linux_logo *logo,
+ unsigned int n)
+{}
+#endif

#endif /* _LINUX_LINUX_LOGO_H */

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