1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/staging/msm/mdp_cursor.c b/drivers/staging/msm/mdp_cursor.c
new file mode 100644
index 000000000000..7d28f30d9313
--- /dev/null
+++ b/drivers/staging/msm/mdp_cursor.c
@@ -0,0 +1,104 @@
+/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/time.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/hrtimer.h>
+
+#include <mach/hardware.h>
+#include <asm/io.h>
+
+#include <asm/system.h>
+#include <asm/mach-types.h>
+#include <linux/semaphore.h>
+#include <linux/spinlock.h>
+
+#include <linux/fb.h>
+
+#include "mdp.h"
+#include "msm_fb.h"
+
+static int cursor_enabled;
+
+int mdp_hw_cursor_update(struct fb_info *info, struct fb_cursor *cursor)
+{
+	struct msm_fb_data_type *mfd = (struct msm_fb_data_type *)info->par;
+	struct fb_image *img = &cursor->image;
+	int calpha_en, transp_en;
+	int alpha;
+	int ret = 0;
+
+	if ((img->width > MDP_CURSOR_WIDTH) ||
+	    (img->height > MDP_CURSOR_HEIGHT) ||
+	    (img->depth != 32))
+		return -EINVAL;
+
+	if (cursor->set & FB_CUR_SETPOS)
+		MDP_OUTP(MDP_BASE + 0x9004c, (img->dy << 16) | img->dx);
+
+	if (cursor->set & FB_CUR_SETIMAGE) {
+		ret = copy_from_user(mfd->cursor_buf, img->data,
+					img->width*img->height*4);
+		if (ret)
+			return ret;
+
+		if (img->bg_color == 0xffffffff)
+			transp_en = 0;
+		else
+			transp_en = 1;
+
+		alpha = (img->fg_color & 0xff000000) >> 24;
+
+		if (alpha)
+			calpha_en = 0x2; /* xrgb */
+		else
+			calpha_en = 0x1; /* argb */
+
+		MDP_OUTP(MDP_BASE + 0x90044, (img->height << 16) | img->width);
+		MDP_OUTP(MDP_BASE + 0x90048, mfd->cursor_buf_phys);
+		/* order the writes the cursor_buf before updating the
+		 * hardware */
+//		dma_coherent_pre_ops();
+		MDP_OUTP(MDP_BASE + 0x90060,
+			 (transp_en << 3) | (calpha_en << 1) |
+			 (inp32(MDP_BASE + 0x90060) & 0x1));
+#ifdef CONFIG_FB_MSM_MDP40
+		MDP_OUTP(MDP_BASE + 0x90064, (alpha << 24));
+		MDP_OUTP(MDP_BASE + 0x90068, (0xffffff & img->bg_color));
+		MDP_OUTP(MDP_BASE + 0x9006C, (0xffffff & img->bg_color));
+#else
+		MDP_OUTP(MDP_BASE + 0x90064,
+			 (alpha << 24) | (0xffffff & img->bg_color));
+		MDP_OUTP(MDP_BASE + 0x90068, 0);
+#endif
+	}
+
+	if ((cursor->enable) && (!cursor_enabled)) {
+		cursor_enabled = 1;
+		MDP_OUTP(MDP_BASE + 0x90060, inp32(MDP_BASE + 0x90060) | 0x1);
+	} else if ((!cursor->enable) && (cursor_enabled)) {
+		cursor_enabled = 0;
+		MDP_OUTP(MDP_BASE + 0x90060,
+			 inp32(MDP_BASE + 0x90060) & (~0x1));
+	}
+
+	return 0;
+}