1 /* 2 * drivers/gpu/drm/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 <drm/omap_drm.h> 29 #include <linux/platform_data/omap_drm.h> 30 31 32 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) 33 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */ 34 35 #define MODULE_NAME "omapdrm" 36 37 /* max # of mapper-id's that can be assigned.. todo, come up with a better 38 * (but still inexpensive) way to store/access per-buffer mapper private 39 * data.. 40 */ 41 #define MAX_MAPPERS 2 42 43 /* parameters which describe (unrotated) coordinates of scanout within a fb: */ 44 struct omap_drm_window { 45 uint32_t rotation; 46 int32_t crtc_x, crtc_y; /* signed because can be offscreen */ 47 uint32_t crtc_w, crtc_h; 48 uint32_t src_x, src_y; 49 uint32_t src_w, src_h; 50 }; 51 52 /* Once GO bit is set, we can't make further updates to shadowed registers 53 * until the GO bit is cleared. So various parts in the kms code that need 54 * to update shadowed registers queue up a pair of callbacks, pre_apply 55 * which is called before setting GO bit, and post_apply that is called 56 * after GO bit is cleared. The crtc manages the queuing, and everyone 57 * else goes thru omap_crtc_apply() using these callbacks so that the 58 * code which has to deal w/ GO bit state is centralized. 59 */ 60 struct omap_drm_apply { 61 struct list_head pending_node, queued_node; 62 bool queued; 63 void (*pre_apply)(struct omap_drm_apply *apply); 64 void (*post_apply)(struct omap_drm_apply *apply); 65 }; 66 67 /* For transiently registering for different DSS irqs that various parts 68 * of the KMS code need during setup/configuration. We these are not 69 * necessarily the same as what drm_vblank_get/put() are requesting, and 70 * the hysteresis in drm_vblank_put() is not necessarily desirable for 71 * internal housekeeping related irq usage. 72 */ 73 struct omap_drm_irq { 74 struct list_head node; 75 uint32_t irqmask; 76 bool registered; 77 void (*irq)(struct omap_drm_irq *irq, uint32_t irqstatus); 78 }; 79 80 /* For KMS code that needs to wait for a certain # of IRQs: 81 */ 82 struct omap_irq_wait; 83 struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev, 84 uint32_t irqmask, int count); 85 int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait, 86 unsigned long timeout); 87 88 struct omap_drm_private { 89 uint32_t omaprev; 90 91 unsigned int num_crtcs; 92 struct drm_crtc *crtcs[8]; 93 94 unsigned int num_planes; 95 struct drm_plane *planes[8]; 96 97 unsigned int num_encoders; 98 struct drm_encoder *encoders[8]; 99 100 unsigned int num_connectors; 101 struct drm_connector *connectors[8]; 102 103 struct drm_fb_helper *fbdev; 104 105 struct workqueue_struct *wq; 106 107 /* list of GEM objects: */ 108 struct list_head obj_list; 109 110 bool has_dmm; 111 112 /* properties: */ 113 struct drm_property *rotation_prop; 114 struct drm_property *zorder_prop; 115 116 /* irq handling: */ 117 struct list_head irq_list; /* list of omap_drm_irq */ 118 uint32_t vblank_mask; /* irq bits set for userspace vblank */ 119 struct omap_drm_irq error_handler; 120 }; 121 122 /* this should probably be in drm-core to standardize amongst drivers */ 123 #define DRM_ROTATE_0 0 124 #define DRM_ROTATE_90 1 125 #define DRM_ROTATE_180 2 126 #define DRM_ROTATE_270 3 127 #define DRM_REFLECT_X 4 128 #define DRM_REFLECT_Y 5 129 130 #ifdef CONFIG_DEBUG_FS 131 int omap_debugfs_init(struct drm_minor *minor); 132 void omap_debugfs_cleanup(struct drm_minor *minor); 133 void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m); 134 void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m); 135 void omap_gem_describe_objects(struct list_head *list, struct seq_file *m); 136 #endif 137 138 #ifdef CONFIG_PM 139 int omap_gem_resume(struct device *dev); 140 #endif 141 142 int omap_irq_enable_vblank(struct drm_device *dev, int crtc_id); 143 void omap_irq_disable_vblank(struct drm_device *dev, int crtc_id); 144 irqreturn_t omap_irq_handler(int irq, void *arg); 145 void omap_irq_preinstall(struct drm_device *dev); 146 int omap_irq_postinstall(struct drm_device *dev); 147 void omap_irq_uninstall(struct drm_device *dev); 148 void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); 149 void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); 150 void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); 151 void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); 152 int omap_drm_irq_uninstall(struct drm_device *dev); 153 int omap_drm_irq_install(struct drm_device *dev); 154 155 struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev); 156 void omap_fbdev_free(struct drm_device *dev); 157 158 const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc); 159 enum omap_channel omap_crtc_channel(struct drm_crtc *crtc); 160 int omap_crtc_apply(struct drm_crtc *crtc, 161 struct omap_drm_apply *apply); 162 void omap_crtc_pre_init(void); 163 void omap_crtc_pre_uninit(void); 164 struct drm_crtc *omap_crtc_init(struct drm_device *dev, 165 struct drm_plane *plane, enum omap_channel channel, int id); 166 167 struct drm_plane *omap_plane_init(struct drm_device *dev, 168 int plane_id, bool private_plane); 169 int omap_plane_dpms(struct drm_plane *plane, int mode); 170 int omap_plane_mode_set(struct drm_plane *plane, 171 struct drm_crtc *crtc, struct drm_framebuffer *fb, 172 int crtc_x, int crtc_y, 173 unsigned int crtc_w, unsigned int crtc_h, 174 uint32_t src_x, uint32_t src_y, 175 uint32_t src_w, uint32_t src_h, 176 void (*fxn)(void *), void *arg); 177 void omap_plane_install_properties(struct drm_plane *plane, 178 struct drm_mode_object *obj); 179 int omap_plane_set_property(struct drm_plane *plane, 180 struct drm_property *property, uint64_t val); 181 182 struct drm_encoder *omap_encoder_init(struct drm_device *dev, 183 struct omap_dss_device *dssdev); 184 int omap_encoder_set_enabled(struct drm_encoder *encoder, bool enabled); 185 int omap_encoder_update(struct drm_encoder *encoder, 186 struct omap_overlay_manager *mgr, 187 struct omap_video_timings *timings); 188 189 struct drm_connector *omap_connector_init(struct drm_device *dev, 190 int connector_type, struct omap_dss_device *dssdev, 191 struct drm_encoder *encoder); 192 struct drm_encoder *omap_connector_attached_encoder( 193 struct drm_connector *connector); 194 void omap_connector_flush(struct drm_connector *connector, 195 int x, int y, int w, int h); 196 197 void copy_timings_omap_to_drm(struct drm_display_mode *mode, 198 struct omap_video_timings *timings); 199 void copy_timings_drm_to_omap(struct omap_video_timings *timings, 200 struct drm_display_mode *mode); 201 202 uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats, 203 uint32_t max_formats, enum omap_color_mode supported_modes); 204 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev, 205 struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd); 206 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev, 207 struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos); 208 struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p); 209 int omap_framebuffer_pin(struct drm_framebuffer *fb); 210 int omap_framebuffer_unpin(struct drm_framebuffer *fb); 211 void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, 212 struct omap_drm_window *win, struct omap_overlay_info *info); 213 struct drm_connector *omap_framebuffer_get_next_connector( 214 struct drm_framebuffer *fb, struct drm_connector *from); 215 void omap_framebuffer_flush(struct drm_framebuffer *fb, 216 int x, int y, int w, int h); 217 218 void omap_gem_init(struct drm_device *dev); 219 void omap_gem_deinit(struct drm_device *dev); 220 221 struct drm_gem_object *omap_gem_new(struct drm_device *dev, 222 union omap_gem_size gsize, uint32_t flags); 223 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file, 224 union omap_gem_size gsize, uint32_t flags, uint32_t *handle); 225 void omap_gem_free_object(struct drm_gem_object *obj); 226 void *omap_gem_vaddr(struct drm_gem_object *obj); 227 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 228 uint32_t handle, uint64_t *offset); 229 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 230 struct drm_mode_create_dumb *args); 231 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma); 232 int omap_gem_mmap_obj(struct drm_gem_object *obj, 233 struct vm_area_struct *vma); 234 int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); 235 int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op); 236 int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op); 237 int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op); 238 int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op, 239 void (*fxn)(void *arg), void *arg); 240 int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll); 241 void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff); 242 void omap_gem_dma_sync(struct drm_gem_object *obj, 243 enum dma_data_direction dir); 244 int omap_gem_get_paddr(struct drm_gem_object *obj, 245 dma_addr_t *paddr, bool remap); 246 int omap_gem_put_paddr(struct drm_gem_object *obj); 247 int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages, 248 bool remap); 249 int omap_gem_put_pages(struct drm_gem_object *obj); 250 uint32_t omap_gem_flags(struct drm_gem_object *obj); 251 int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient, 252 int x, int y, dma_addr_t *paddr); 253 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj); 254 size_t omap_gem_mmap_size(struct drm_gem_object *obj); 255 int omap_gem_tiled_size(struct drm_gem_object *obj, uint16_t *w, uint16_t *h); 256 int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient); 257 258 struct dma_buf *omap_gem_prime_export(struct drm_device *dev, 259 struct drm_gem_object *obj, int flags); 260 struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev, 261 struct dma_buf *buffer); 262 263 static inline int align_pitch(int pitch, int width, int bpp) 264 { 265 int bytespp = (bpp + 7) / 8; 266 /* in case someone tries to feed us a completely bogus stride: */ 267 pitch = max(pitch, width * bytespp); 268 /* PVR needs alignment to 8 pixels.. right now that is the most 269 * restrictive stride requirement.. 270 */ 271 return ALIGN(pitch, 8 * bytespp); 272 } 273 274 /* map crtc to vblank mask */ 275 uint32_t pipe2vbl(struct drm_crtc *crtc); 276 struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder); 277 278 /* should these be made into common util helpers? 279 */ 280 281 static inline int objects_lookup(struct drm_device *dev, 282 struct drm_file *filp, uint32_t pixel_format, 283 struct drm_gem_object **bos, uint32_t *handles) 284 { 285 int i, n = drm_format_num_planes(pixel_format); 286 287 for (i = 0; i < n; i++) { 288 bos[i] = drm_gem_object_lookup(dev, filp, handles[i]); 289 if (!bos[i]) 290 goto fail; 291 292 } 293 294 return 0; 295 296 fail: 297 while (--i > 0) 298 drm_gem_object_unreference_unlocked(bos[i]); 299 300 return -ENOENT; 301 } 302 303 #endif /* __OMAP_DRV_H__ */ 304