--- /dev/null
+/*
+ * linux/drivers/video/omap2/omapfb.h
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Some code and ideas taken from drivers/video/omap/ driver
+ * by Imre Deak.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
+#define __DRIVERS_VIDEO_OMAP2_OMAPFB_H__
+
+#ifdef CONFIG_FB_OMAP2_DEBUG_SUPPORT
+#define DEBUG
+#endif
+
+#include <linux/rwsem.h>
+#include <linux/dma-attrs.h>
+#include <linux/dma-mapping.h>
+
+#include <video/omapdss.h>
+
+#ifdef DEBUG
+extern bool omapfb_debug;
+#define DBG(format, ...) \
+ do { \
+ if (omapfb_debug) \
+ printk(KERN_DEBUG "OMAPFB: " format, ## __VA_ARGS__); \
+ } while (0)
+#else
+#define DBG(format, ...)
+#endif
+
+#define FB2OFB(fb_info) ((struct omapfb_info *)(fb_info->par))
+
+/* max number of overlays to which a framebuffer data can be direct */
+#define OMAPFB_MAX_OVL_PER_FB 3
+
+struct omapfb2_mem_region {
+ int id;
+ struct dma_attrs attrs;
+ void *token;
+ dma_addr_t dma_handle;
+ u32 paddr;
+ void __iomem *vaddr;
+ struct vrfb vrfb;
+ unsigned long size;
+ u8 type; /* OMAPFB_PLANE_MEM_* */
+ bool alloc; /* allocated by the driver */
+ bool map; /* kernel mapped by the driver */
+ atomic_t map_count;
+ struct rw_semaphore lock;
+ atomic_t lock_count;
+};
+
+/* appended to fb_info */
+struct omapfb_info {
+ int id;
+ struct omapfb2_mem_region *region;
+ int num_overlays;
+ struct omap_overlay *overlays[OMAPFB_MAX_OVL_PER_FB];
+ struct omapfb2_device *fbdev;
+ enum omap_dss_rotation_type rotation_type;
+ u8 rotation[OMAPFB_MAX_OVL_PER_FB];
+ bool mirror;
+};
+
+struct omapfb_display_data {
+ struct omapfb2_device *fbdev;
+ struct omap_dss_device *dssdev;
+ u8 bpp_override;
+ enum omapfb_update_mode update_mode;
+ bool auto_update_work_enabled;
+ struct delayed_work auto_update_work;
+};
+
+struct omapfb2_device {
+ struct device *dev;
+ struct mutex mtx;
+
+ u32 pseudo_palette[17];
+
+ int state;
+
+ unsigned num_fbs;
+ struct fb_info *fbs[10];
+ struct omapfb2_mem_region regions[10];
+
+ unsigned num_displays;
+ struct omapfb_display_data displays[10];
+ unsigned num_overlays;
+ struct omap_overlay *overlays[10];
+ unsigned num_managers;
+ struct omap_overlay_manager *managers[10];
+
+ struct workqueue_struct *auto_update_wq;
+};
+
+struct omapfb_colormode {
+ enum omap_color_mode dssmode;
+ u32 bits_per_pixel;
+ u32 nonstd;
+ struct fb_bitfield red;
+ struct fb_bitfield green;
+ struct fb_bitfield blue;
+ struct fb_bitfield transp;
+};
+
+void set_fb_fix(struct fb_info *fbi);
+int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var);
+int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type);
+int omapfb_apply_changes(struct fb_info *fbi, int init);
+
+int omapfb_create_sysfs(struct omapfb2_device *fbdev);
+void omapfb_remove_sysfs(struct omapfb2_device *fbdev);
+
+int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg);
+
+int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
+ struct fb_var_screeninfo *var);
+
+int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
+ u16 posx, u16 posy, u16 outw, u16 outh);
+
+void omapfb_start_auto_update(struct omapfb2_device *fbdev,
+ struct omap_dss_device *display);
+void omapfb_stop_auto_update(struct omapfb2_device *fbdev,
+ struct omap_dss_device *display);
+int omapfb_get_update_mode(struct fb_info *fbi, enum omapfb_update_mode *mode);
+int omapfb_set_update_mode(struct fb_info *fbi, enum omapfb_update_mode mode);
+
+/* find the display connected to this fb, if any */
+static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
+{
+ struct omapfb_info *ofbi = FB2OFB(fbi);
+ struct omap_overlay *ovl;
+
+ /* XXX: returns the display connected to first attached overlay */
+
+ if (ofbi->num_overlays == 0)
+ return NULL;
+
+ ovl = ofbi->overlays[0];
+
+ return ovl->get_device(ovl);
+}
+
+static inline struct omapfb_display_data *get_display_data(
+ struct omapfb2_device *fbdev, struct omap_dss_device *dssdev)
+{
+ int i;
+
+ for (i = 0; i < fbdev->num_displays; ++i)
+ if (fbdev->displays[i].dssdev == dssdev)
+ return &fbdev->displays[i];
+
+ /* This should never happen */
+ BUG();
+ return NULL;
+}
+
+static inline void omapfb_lock(struct omapfb2_device *fbdev)
+{
+ mutex_lock(&fbdev->mtx);
+}
+
+static inline void omapfb_unlock(struct omapfb2_device *fbdev)
+{
+ mutex_unlock(&fbdev->mtx);
+}
+
+static inline int omapfb_overlay_enable(struct omap_overlay *ovl,
+ int enable)
+{
+ if (enable)
+ return ovl->enable(ovl);
+ else
+ return ovl->disable(ovl);
+}
+
+static inline struct omapfb2_mem_region *
+omapfb_get_mem_region(struct omapfb2_mem_region *rg)
+{
+ down_read_nested(&rg->lock, rg->id);
+ atomic_inc(&rg->lock_count);
+ return rg;
+}
+
+static inline void omapfb_put_mem_region(struct omapfb2_mem_region *rg)
+{
+ atomic_dec(&rg->lock_count);
+ up_read(&rg->lock);
+}
+
+#endif
Code Review / kvmfornfv.git / blobdiff