drivers/staging/omapdrm/omap_drv.h

   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
  42 struct omap_drm_private {
  43         unsigned int num_crtcs;
  44         struct drm_crtc *crtcs[8];
  45         unsigned int num_planes;
  46         struct drm_plane *planes[8];
  47         unsigned int num_encoders;
  48         struct drm_encoder *encoders[8];
  49         unsigned int num_connectors;
  50         struct drm_connector *connectors[8];
  51
  52         struct drm_fb_helper *fbdev;
  53
  54         bool has_dmm;
  55 };
  56
  57 #ifdef CONFIG_DEBUG_FS
  58 int omap_debugfs_init(struct drm_minor *minor);
  59 void omap_debugfs_cleanup(struct drm_minor *minor);
  60 #endif
  61
  62 struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
  63 void omap_fbdev_free(struct drm_device *dev);
  64
  65 struct drm_crtc *omap_crtc_init(struct drm_device *dev,
  66                 struct omap_overlay *ovl, int id);
  67
  68 struct drm_plane *omap_plane_init(struct drm_device *dev,
  69                 struct omap_overlay *ovl, unsigned int possible_crtcs,
  70                 bool priv);
  71 int omap_plane_dpms(struct drm_plane *plane, int mode);
  72 int omap_plane_mode_set(struct drm_plane *plane,
  73                 struct drm_crtc *crtc, struct drm_framebuffer *fb,
  74                 int crtc_x, int crtc_y,
  75                 unsigned int crtc_w, unsigned int crtc_h,
  76                 uint32_t src_x, uint32_t src_y,
  77                 uint32_t src_w, uint32_t src_h);
  78
  79 struct drm_encoder *omap_encoder_init(struct drm_device *dev,
  80                 struct omap_overlay_manager *mgr);
  81 struct omap_overlay_manager *omap_encoder_get_manager(
  82                 struct drm_encoder *encoder);
  83 struct drm_encoder *omap_connector_attached_encoder(
  84                 struct drm_connector *connector);
  85 enum drm_connector_status omap_connector_detect(
  86                 struct drm_connector *connector, bool force);
  87
  88 struct drm_connector *omap_connector_init(struct drm_device *dev,
  89                 int connector_type, struct omap_dss_device *dssdev);
  90 void omap_connector_mode_set(struct drm_connector *connector,
  91                 struct drm_display_mode *mode);
  92 void omap_connector_flush(struct drm_connector *connector,
  93                 int x, int y, int w, int h);
  94
  95 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
  96                 struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd);
  97 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
  98                 struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
  99 struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p);
 100 int omap_framebuffer_pin(struct drm_framebuffer *fb);
 101 void omap_framebuffer_unpin(struct drm_framebuffer *fb);
 102 void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, int x, int y,
 103                 struct omap_overlay_info *info);
 104 struct drm_connector *omap_framebuffer_get_next_connector(
 105                 struct drm_framebuffer *fb, struct drm_connector *from);
 106 void omap_framebuffer_flush(struct drm_framebuffer *fb,
 107                 int x, int y, int w, int h);
 108
 109 void omap_gem_init(struct drm_device *dev);
 110 void omap_gem_deinit(struct drm_device *dev);
 111
 112 struct drm_gem_object *omap_gem_new(struct drm_device *dev,
 113                 union omap_gem_size gsize, uint32_t flags);
 114 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 115                 union omap_gem_size gsize, uint32_t flags, uint32_t *handle);
 116 void omap_gem_free_object(struct drm_gem_object *obj);
 117 int omap_gem_init_object(struct drm_gem_object *obj);
 118 void *omap_gem_vaddr(struct drm_gem_object *obj);
 119 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 120                 uint32_t handle, uint64_t *offset);
 121 int omap_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
 122                 uint32_t handle);
 123 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 124                 struct drm_mode_create_dumb *args);
 125 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 126 int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 127 int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op);
 128 int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op);
 129 int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op);
 130 int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op,
 131                 void (*fxn)(void *arg), void *arg);
 132 int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll);
 133 int omap_gem_get_paddr(struct drm_gem_object *obj,
 134                 dma_addr_t *paddr, bool remap);
 135 int omap_gem_put_paddr(struct drm_gem_object *obj);
 136 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj);
 137 size_t omap_gem_mmap_size(struct drm_gem_object *obj);
 138
 139 static inline int align_pitch(int pitch, int width, int bpp)
 140 {
 141         int bytespp = (bpp + 7) / 8;
 142         /* in case someone tries to feed us a completely bogus stride: */
 143         pitch = max(pitch, width * bytespp);
 144         /* PVR needs alignment to 8 pixels.. right now that is the most
 145          * restrictive stride requirement..
 146          */
 147         return ALIGN(pitch, 8 * bytespp);
 148 }
 149
 150 /* should these be made into common util helpers?
 151  */
 152
 153 static inline int objects_lookup(struct drm_device *dev,
 154                 struct drm_file *filp, uint32_t pixel_format,
 155                 struct drm_gem_object **bos, uint32_t *handles)
 156 {
 157         int i, n = drm_format_num_planes(pixel_format);
 158
 159         for (i = 0; i < n; i++) {
 160                 bos[i] = drm_gem_object_lookup(dev, filp, handles[i]);
 161                 if (!bos[i]) {
 162                         goto fail;
 163                 }
 164         }
 165
 166         return 0;
 167
 168 fail:
 169         while (--i > 0) {
 170                 drm_gem_object_unreference_unlocked(bos[i]);
 171         }
 172         return -ENOENT;
 173 }
 174
 175 #endif /* __OMAP_DRV_H__ */