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
  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
  65 int omap_debugfs_init(struct drm_minor *minor);
  66 void omap_debugfs_cleanup(struct drm_minor *minor);
  67 void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
  68 void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
  69 void omap_gem_describe_objects(struct list_head *list, struct seq_file *m);
  70 #endif
  71
  72 struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
  73 void omap_fbdev_free(struct drm_device *dev);
  74
  75 struct drm_crtc *omap_crtc_init(struct drm_device *dev,
  76                 struct omap_overlay *ovl, int id);
  77
  78 struct drm_plane *omap_plane_init(struct drm_device *dev,
  79                 struct omap_overlay *ovl, unsigned int possible_crtcs,
  80                 bool priv);
  81 int omap_plane_dpms(struct drm_plane *plane, int mode);
  82 int 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);
  88
  89 struct drm_encoder *omap_encoder_init(struct drm_device *dev,
  90                 struct omap_overlay_manager *mgr);
  91 struct omap_overlay_manager *omap_encoder_get_manager(
  92                 struct drm_encoder *encoder);
  93 struct drm_encoder *omap_connector_attached_encoder(
  94                 struct drm_connector *connector);
  95 enum drm_connector_status omap_connector_detect(
  96                 struct drm_connector *connector, bool force);
  97
  98 struct drm_connector *omap_connector_init(struct drm_device *dev,
  99                 int connector_type, struct omap_dss_device *dssdev);
 100 void omap_connector_mode_set(struct drm_connector *connector,
 101                 struct drm_display_mode *mode);
 102 void omap_connector_flush(struct drm_connector *connector,
 103                 int x, int y, int w, int h);
 104
 105 uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats,
 106                 uint32_t max_formats, enum omap_color_mode supported_modes);
 107 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
 108                 struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd);
 109 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
 110                 struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
 111 struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p);
 112 int omap_framebuffer_replace(struct drm_framebuffer *a,
 113                 struct drm_framebuffer *b, void *arg,
 114                 void (*unpin)(void *arg, struct drm_gem_object *bo));
 115 void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, int x, int y,
 116                 struct omap_overlay_info *info);
 117 struct drm_connector *omap_framebuffer_get_next_connector(
 118                 struct drm_framebuffer *fb, struct drm_connector *from);
 119 void omap_framebuffer_flush(struct drm_framebuffer *fb,
 120                 int x, int y, int w, int h);
 121
 122 void omap_gem_init(struct drm_device *dev);
 123 void omap_gem_deinit(struct drm_device *dev);
 124
 125 struct drm_gem_object *omap_gem_new(struct drm_device *dev,
 126                 union omap_gem_size gsize, uint32_t flags);
 127 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 128                 union omap_gem_size gsize, uint32_t flags, uint32_t *handle);
 129 void omap_gem_free_object(struct drm_gem_object *obj);
 130 int omap_gem_init_object(struct drm_gem_object *obj);
 131 void *omap_gem_vaddr(struct drm_gem_object *obj);
 132 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 133                 uint32_t handle, uint64_t *offset);
 134 int omap_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
 135                 uint32_t handle);
 136 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 137                 struct drm_mode_create_dumb *args);
 138 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 139 int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 140 int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op);
 141 int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op);
 142 int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op);
 143 int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op,
 144                 void (*fxn)(void *arg), void *arg);
 145 int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll);
 146 int omap_gem_get_paddr(struct drm_gem_object *obj,
 147                 dma_addr_t *paddr, bool remap);
 148 int omap_gem_put_paddr(struct drm_gem_object *obj);
 149 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj);
 150 size_t omap_gem_mmap_size(struct drm_gem_object *obj);
 151
 152 static inline int align_pitch(int pitch, int width, int bpp)
 153 {
 154         int bytespp = (bpp + 7) / 8;
 155         /* in case someone tries to feed us a completely bogus stride: */
 156         pitch = max(pitch, width * bytespp);
 157         /* PVR needs alignment to 8 pixels.. right now that is the most
 158          * restrictive stride requirement..
 159          */
 160         return ALIGN(pitch, 8 * bytespp);
 161 }
 162
 163 /* should these be made into common util helpers?
 164  */
 165
 166 static inline int objects_lookup(struct drm_device *dev,
 167                 struct drm_file *filp, uint32_t pixel_format,
 168                 struct drm_gem_object **bos, uint32_t *handles)
 169 {
 170         int i, n = drm_format_num_planes(pixel_format);
 171
 172         for (i = 0; i < n; i++) {
 173                 bos[i] = drm_gem_object_lookup(dev, filp, handles[i]);
 174                 if (!bos[i]) {
 175                         goto fail;
 176                 }
 177         }
 178
 179         return 0;
 180
 181 fail:
 182         while (--i > 0) {
 183                 drm_gem_object_unreference_unlocked(bos[i]);
 184         }
 185         return -ENOENT;
 186 }
 187
 188 #endif /* __OMAP_DRV_H__ */