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