From af044376be41ea43b6ac58aaf49e05ea1e971492 Mon Sep 17 00:00:00 2001
From: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: Mon, 15 Jan 2018 19:54:50 +0100
Subject: [PATCH] copy fb/linux.h to fb/neutrinofb.h

Origin commit data
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Branch: ni/coolstream
Commit: https://github.com/neutrino-images/ni-neutrino/commit/a7d382d99629f5110411b2da9880676a27212654
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2018-01-15 (Mon, 15 Jan 2018)


------------------
No further description and justification available within origin commit message!

------------------
This commit was generated by Migit
---
 src/gui/widget/yaft/fb/neutrinofb.h | 104 ++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 src/gui/widget/yaft/fb/neutrinofb.h

diff --git a/src/gui/widget/yaft/fb/neutrinofb.h b/src/gui/widget/yaft/fb/neutrinofb.h
new file mode 100644
index 000000000..5e572b6e8
--- /dev/null
+++ b/src/gui/widget/yaft/fb/neutrinofb.h
@@ -0,0 +1,104 @@
+/* See LICENSE for licence details. */
+#include <linux/fb.h>
+#include <linux/vt.h>
+#include <linux/kd.h>
+
+typedef struct fb_cmap cmap_t;
+
+enum {
+	CMAP_COLOR_LENGTH = sizeof(__u16) * BITS_PER_BYTE,
+};
+
+/* os specific ioctl */
+void alloc_cmap(cmap_t *cmap, int colors)
+{
+	cmap->start  = 0;
+	cmap->len    = colors;
+	cmap->red    = (__u16 *) ecalloc(colors, sizeof(__u16));
+	cmap->green  = (__u16 *) ecalloc(colors, sizeof(__u16));
+	cmap->blue   = (__u16 *) ecalloc(colors, sizeof(__u16));
+	cmap->transp = NULL;
+}
+
+int put_cmap(int fd, cmap_t *cmap)
+{
+	return ioctl(fd, FBIOPUTCMAP, cmap);
+}
+
+int get_cmap(int fd, cmap_t *cmap)
+{
+	return ioctl(fd, FBIOGETCMAP, cmap);
+}
+
+/* initialize struct fb_info_t */
+void set_bitfield(struct fb_var_screeninfo *vinfo,
+	struct bitfield_t *red, struct bitfield_t *green, struct bitfield_t *blue)
+{
+	red->length   = vinfo->red.length;
+	green->length = vinfo->green.length;
+	blue->length  = vinfo->blue.length;
+
+	red->offset   = vinfo->red.offset;
+	green->offset = vinfo->green.offset;
+	blue->offset  = vinfo->blue.offset;
+}
+
+enum fb_type_t set_type(__u32 type)
+{
+	if (type == FB_TYPE_PACKED_PIXELS)
+		return YAFT_FB_TYPE_PACKED_PIXELS;
+	else if (type == FB_TYPE_PLANES)
+		return YAFT_FB_TYPE_PLANES;
+	else
+		return YAFT_FB_TYPE_UNKNOWN;
+}
+
+enum fb_visual_t set_visual(__u32 visual)
+{
+	if (visual == FB_VISUAL_TRUECOLOR)
+		return YAFT_FB_VISUAL_TRUECOLOR;
+	else if (visual == FB_VISUAL_DIRECTCOLOR)
+		return YAFT_FB_VISUAL_DIRECTCOLOR;
+	else if (visual == FB_VISUAL_PSEUDOCOLOR)
+		return YAFT_FB_VISUAL_PSEUDOCOLOR;
+	else
+		return YAFT_FB_VISUAL_UNKNOWN;
+}
+
+bool set_fbinfo(int fd, struct fb_info_t *info)
+{
+	struct fb_fix_screeninfo finfo;
+	struct fb_var_screeninfo vinfo;
+
+	if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo)) {
+		logging(ERROR, "ioctl: FBIOGET_FSCREENINFO failed\n");
+		return false;
+	}
+
+	if (ioctl(fd, FBIOGET_VSCREENINFO, &vinfo)) {
+		logging(ERROR, "ioctl: FBIOGET_VSCREENINFO failed\n");
+		return false;
+	}
+
+	set_bitfield(&vinfo, &info->red, &info->green, &info->blue);
+
+	info->width  = vinfo.xres;
+	info->height = vinfo.yres;
+	info->screen_size = finfo.smem_len;
+	info->line_length = finfo.line_length;
+
+	info->bits_per_pixel  = vinfo.bits_per_pixel;
+	info->bytes_per_pixel = my_ceil(info->bits_per_pixel, BITS_PER_BYTE);
+
+	info->type   = set_type(finfo.type);
+	info->visual = set_visual(finfo.visual);
+
+	/* check screen [xy]offset and initialize because linux console changes these values */
+	if (vinfo.xoffset != 0 || vinfo.yoffset != 0) {
+		vinfo.xoffset = vinfo.yoffset = 0;
+		if (ioctl(fd, FBIOPUT_VSCREENINFO, &vinfo))
+			logging(WARN, "couldn't reset offset (x:%d y:%d)\n", vinfo.xoffset, vinfo.yoffset);
+	}
+
+	return true;
+}