LXR linux/drivers/staging/omapdrm/omap

   1/*
   2 * drivers/staging/omapdrm/omap_drv.h
   3 *
   4 * Copyright (C) 2011 Texas Instruments
   5 * Author: Rob Clark <rob@ti.com>
   6 *
   7 * This program is free software; you can redistribute it and/or modify it
   8 * under the terms of the GNU General Public License version 2 as published by
   9 * the Free Software Foundation.
  10 *
  11 * This program is distributed in the hope that it will be useful, but WITHOUT
  12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14 * more details.
  15 *
  16 * You should have received a copy of the GNU General Public License along with
  17 * this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20#ifndef __OMAP_DRV_H__
  21#define __OMAP_DRV_H__
  22
  23#include <video/omapdss.h>
  24#include <linux/module.h>
  25#include <linux/types.h>
  26#include <drm/drmP.h>
  27#include <drm/drm_crtc_helper.h>
  28#include "omap_drm.h"
  29#include "omap_priv.h"
  30
  31#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
  32#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */
  33
  34#define MODULE_NAME     "omapdrm"
  35
  36/* max # of mapper-id's that can be assigned.. todo, come up with a better
  37 * (but still inexpensive) way to store/access per-buffer mapper private
  38 * data..
  39 */
  40#define MAX_MAPPERS 2
  41
  42struct omap_drm_private {
  43        unsigned int num_crtcs;
  44        struct drm_crtc *crtcs[8];
  45
  46        unsigned int num_planes;
  47        struct drm_plane *planes[8];
  48
  49        unsigned int num_encoders;
  50        struct drm_encoder *encoders[8];
  51
  52        unsigned int num_connectors;
  53        struct drm_connector *connectors[8];
  54
  55        struct drm_fb_helper *fbdev;
  56
  57        struct workqueue_struct *wq;
  58
  59        struct list_head obj_list;
  60
  61        bool has_dmm;
  62};
  63
  64#ifdef CONFIG_DEBUG_FS
  65int omap_debugfs_init(struct drm_minor *minor);
  66void omap_debugfs_cleanup(struct drm_minor *minor);
  67void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
  68void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
  69void omap_gem_describe_objects(struct list_head *list, struct seq_file *m);
  70#endif
  71
  72struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
  73void omap_fbdev_free(struct drm_device *dev);
  74
  75struct drm_crtc *omap_crtc_init(struct drm_device *dev,
  76                struct omap_overlay *ovl, int id);
  77
  78struct drm_plane *omap_plane_init(struct drm_device *dev,
  79                struct omap_overlay *ovl, unsigned int possible_crtcs,
  80                bool priv);
  81int omap_plane_dpms(struct drm_plane *plane, int mode);
  82int omap_plane_mode_set(struct drm_plane *plane,
  83                struct drm_crtc *crtc, struct drm_framebuffer *fb,
  84                int crtc_x, int crtc_y,
  85                unsigned int crtc_w, unsigned int crtc_h,
  86                uint32_t src_x, uint32_t src_y,
  87                uint32_t src_w, uint32_t src_h);
  88void omap_plane_on_endwin(struct drm_plane *plane,
  89                void (*fxn)(void *), void *arg);
  90
  91struct drm_encoder *omap_encoder_init(struct drm_device *dev,
  92                struct omap_overlay_manager *mgr);
  93struct omap_overlay_manager *omap_encoder_get_manager(
  94                struct drm_encoder *encoder);
  95struct drm_encoder *omap_connector_attached_encoder(
  96                struct drm_connector *connector);
  97enum drm_connector_status omap_connector_detect(
  98                struct drm_connector *connector, bool force);
  99
 100struct drm_connector *omap_connector_init(struct drm_device *dev,
 101                int connector_type, struct omap_dss_device *dssdev);
 102void omap_connector_mode_set(struct drm_connector *connector,
 103                struct drm_display_mode *mode);
 104void omap_connector_flush(struct drm_connector *connector,
 105                int x, int y, int w, int h);
 106
 107uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats,
 108                uint32_t max_formats, enum omap_color_mode supported_modes);
 109struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
 110                struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd);
 111struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
 112                struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
 113struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p);
 114int omap_framebuffer_replace(struct drm_framebuffer *a,
 115                struct drm_framebuffer *b, void *arg,
 116                void (*unpin)(void *arg, struct drm_gem_object *bo));
 117void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, int x, int y,
 118                struct omap_overlay_info *info);
 119struct drm_connector *omap_framebuffer_get_next_connector(
 120                struct drm_framebuffer *fb, struct drm_connector *from);
 121void omap_framebuffer_flush(struct drm_framebuffer *fb,
 122                int x, int y, int w, int h);
 123
 124void omap_gem_init(struct drm_device *dev);
 125void omap_gem_deinit(struct drm_device *dev);
 126
 127struct drm_gem_object *omap_gem_new(struct drm_device *dev,
 128                union omap_gem_size gsize, uint32_t flags);
 129int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 130                union omap_gem_size gsize, uint32_t flags, uint32_t *handle);
 131void omap_gem_free_object(struct drm_gem_object *obj);
 132int omap_gem_init_object(struct drm_gem_object *obj);
 133void *omap_gem_vaddr(struct drm_gem_object *obj);
 134int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 135                uint32_t handle, uint64_t *offset);
 136int omap_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
 137                uint32_t handle);
 138int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 139                struct drm_mode_create_dumb *args);
 140int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 141int omap_gem_mmap_obj(struct drm_gem_object *obj,
 142                struct vm_area_struct *vma);
 143int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 144int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op);
 145int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op);
 146int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op);
 147int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op,
 148                void (*fxn)(void *arg), void *arg);
 149int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll);
 150void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff);
 151void omap_gem_dma_sync(struct drm_gem_object *obj,
 152                enum dma_data_direction dir);
 153int omap_gem_get_paddr(struct drm_gem_object *obj,
 154                dma_addr_t *paddr, bool remap);
 155int omap_gem_put_paddr(struct drm_gem_object *obj);
 156int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages,
 157                bool remap);
 158int omap_gem_put_pages(struct drm_gem_object *obj);
 159uint32_t omap_gem_flags(struct drm_gem_object *obj);
 160uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj);
 161size_t omap_gem_mmap_size(struct drm_gem_object *obj);
 162
 163struct dma_buf * omap_gem_prime_export(struct drm_device *dev,
 164                struct drm_gem_object *obj, int flags);
 165struct drm_gem_object * omap_gem_prime_import(struct drm_device *dev,
 166                struct dma_buf *buffer);
 167
 168static inline int align_pitch(int pitch, int width, int bpp)
 169{
 170        int bytespp = (bpp + 7) / 8;
 171        /* in case someone tries to feed us a completely bogus stride: */
 172        pitch = max(pitch, width * bytespp);
 173        /* PVR needs alignment to 8 pixels.. right now that is the most
 174         * restrictive stride requirement..
 175         */
 176        return ALIGN(pitch, 8 * bytespp);
 177}
 178
 179/* should these be made into common util helpers?
 180 */
 181
 182static inline int objects_lookup(struct drm_device *dev,
 183                struct drm_file *filp, uint32_t pixel_format,
 184                struct drm_gem_object **bos, uint32_t *handles)
 185{
 186        int i, n = drm_format_num_planes(pixel_format);
 187
 188        for (i = 0; i < n; i++) {
 189                bos[i] = drm_gem_object_lookup(dev, filp, handles[i]);
 190                if (!bos[i]) {
 191                        goto fail;
 192                }
 193        }
 194
 195        return 0;
 196
 197fail:
 198        while (--i > 0) {
 199                drm_gem_object_unreference_unlocked(bos[i]);
 200        }
 201        return -ENOENT;
 202}
 203
 204#endif /* __OMAP_DRV_H__ */
 205