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 <linux/module.h> 24 #include <linux/platform_data/omap_drm.h> 25 #include <linux/types.h> 26 #include <linux/wait.h> 27 #include <video/omapdss.h> 28 29 #include <drm/drmP.h> 30 #include <drm/drm_crtc_helper.h> 31 #include <drm/drm_gem.h> 32 #include <drm/omap_drm.h> 33 34 #include "dss/omapdss.h" 35 36 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) 37 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */ 38 39 #define MODULE_NAME "omapdrm" 40 41 struct omap_drm_usergart; 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 /* For transiently registering for different DSS irqs that various parts 53 * of the KMS code need during setup/configuration. We these are not 54 * necessarily the same as what drm_vblank_get/put() are requesting, and 55 * the hysteresis in drm_vblank_put() is not necessarily desirable for 56 * internal housekeeping related irq usage. 57 */ 58 struct omap_drm_irq { 59 struct list_head node; 60 uint32_t irqmask; 61 bool registered; 62 void (*irq)(struct omap_drm_irq *irq, uint32_t irqstatus); 63 }; 64 65 /* For KMS code that needs to wait for a certain # of IRQs: 66 */ 67 struct omap_irq_wait; 68 struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev, 69 uint32_t irqmask, int count); 70 int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait, 71 unsigned long timeout); 72 73 struct omap_drm_private { 74 uint32_t omaprev; 75 76 unsigned int num_crtcs; 77 struct drm_crtc *crtcs[8]; 78 79 unsigned int num_planes; 80 struct drm_plane *planes[8]; 81 82 unsigned int num_encoders; 83 struct drm_encoder *encoders[8]; 84 85 unsigned int num_connectors; 86 struct drm_connector *connectors[8]; 87 88 struct drm_fb_helper *fbdev; 89 90 struct workqueue_struct *wq; 91 92 /* lock for obj_list below */ 93 spinlock_t list_lock; 94 95 /* list of GEM objects: */ 96 struct list_head obj_list; 97 98 struct omap_drm_usergart *usergart; 99 bool has_dmm; 100 101 /* properties: */ 102 struct drm_property *zorder_prop; 103 104 /* irq handling: */ 105 struct list_head irq_list; /* list of omap_drm_irq */ 106 uint32_t vblank_mask; /* irq bits set for userspace vblank */ 107 struct omap_drm_irq error_handler; 108 109 /* atomic commit */ 110 struct { 111 wait_queue_head_t wait; 112 u32 pending; 113 spinlock_t lock; /* Protects commit.pending */ 114 } commit; 115 }; 116 117 118 #ifdef CONFIG_DEBUG_FS 119 int omap_debugfs_init(struct drm_minor *minor); 120 void omap_debugfs_cleanup(struct drm_minor *minor); 121 void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m); 122 void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m); 123 void omap_gem_describe_objects(struct list_head *list, struct seq_file *m); 124 #endif 125 126 #ifdef CONFIG_PM 127 int omap_gem_resume(struct device *dev); 128 #endif 129 130 int omap_irq_enable_vblank(struct drm_device *dev, unsigned int pipe); 131 void omap_irq_disable_vblank(struct drm_device *dev, unsigned int pipe); 132 void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); 133 void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); 134 void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); 135 void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); 136 void omap_drm_irq_uninstall(struct drm_device *dev); 137 int omap_drm_irq_install(struct drm_device *dev); 138 139 #ifdef CONFIG_DRM_FBDEV_EMULATION 140 struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev); 141 void omap_fbdev_free(struct drm_device *dev); 142 #else 143 static inline struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev) 144 { 145 return NULL; 146 } 147 static inline void omap_fbdev_free(struct drm_device *dev) 148 { 149 } 150 #endif 151 152 struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc); 153 enum omap_channel omap_crtc_channel(struct drm_crtc *crtc); 154 void omap_crtc_pre_init(void); 155 void omap_crtc_pre_uninit(void); 156 struct drm_crtc *omap_crtc_init(struct drm_device *dev, 157 struct drm_plane *plane, enum omap_channel channel, int id); 158 int omap_crtc_wait_pending(struct drm_crtc *crtc); 159 160 struct drm_plane *omap_plane_init(struct drm_device *dev, 161 int id, enum drm_plane_type type); 162 void omap_plane_install_properties(struct drm_plane *plane, 163 struct drm_mode_object *obj); 164 165 struct drm_encoder *omap_encoder_init(struct drm_device *dev, 166 struct omap_dss_device *dssdev); 167 168 struct drm_connector *omap_connector_init(struct drm_device *dev, 169 int connector_type, struct omap_dss_device *dssdev, 170 struct drm_encoder *encoder); 171 struct drm_encoder *omap_connector_attached_encoder( 172 struct drm_connector *connector); 173 bool omap_connector_get_hdmi_mode(struct drm_connector *connector); 174 175 void copy_timings_omap_to_drm(struct drm_display_mode *mode, 176 struct omap_video_timings *timings); 177 void copy_timings_drm_to_omap(struct omap_video_timings *timings, 178 struct drm_display_mode *mode); 179 180 uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats, 181 uint32_t max_formats, enum omap_color_mode supported_modes); 182 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev, 183 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd); 184 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev, 185 const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos); 186 struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p); 187 int omap_framebuffer_pin(struct drm_framebuffer *fb); 188 void omap_framebuffer_unpin(struct drm_framebuffer *fb); 189 void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, 190 struct omap_drm_window *win, struct omap_overlay_info *info); 191 struct drm_connector *omap_framebuffer_get_next_connector( 192 struct drm_framebuffer *fb, struct drm_connector *from); 193 bool omap_framebuffer_supports_rotation(struct drm_framebuffer *fb); 194 195 void omap_gem_init(struct drm_device *dev); 196 void omap_gem_deinit(struct drm_device *dev); 197 198 struct drm_gem_object *omap_gem_new(struct drm_device *dev, 199 union omap_gem_size gsize, uint32_t flags); 200 struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size, 201 struct sg_table *sgt); 202 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file, 203 union omap_gem_size gsize, uint32_t flags, uint32_t *handle); 204 void omap_gem_free_object(struct drm_gem_object *obj); 205 void *omap_gem_vaddr(struct drm_gem_object *obj); 206 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 207 uint32_t handle, uint64_t *offset); 208 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 209 struct drm_mode_create_dumb *args); 210 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma); 211 int omap_gem_mmap_obj(struct drm_gem_object *obj, 212 struct vm_area_struct *vma); 213 int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); 214 int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op); 215 int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op); 216 int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op); 217 int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op, 218 void (*fxn)(void *arg), void *arg); 219 int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll); 220 void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff); 221 void omap_gem_dma_sync(struct drm_gem_object *obj, 222 enum dma_data_direction dir); 223 int omap_gem_get_paddr(struct drm_gem_object *obj, 224 dma_addr_t *paddr, bool remap); 225 void omap_gem_put_paddr(struct drm_gem_object *obj); 226 int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages, 227 bool remap); 228 int omap_gem_put_pages(struct drm_gem_object *obj); 229 uint32_t omap_gem_flags(struct drm_gem_object *obj); 230 int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient, 231 int x, int y, dma_addr_t *paddr); 232 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj); 233 size_t omap_gem_mmap_size(struct drm_gem_object *obj); 234 int omap_gem_tiled_size(struct drm_gem_object *obj, uint16_t *w, uint16_t *h); 235 int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient); 236 237 struct dma_buf *omap_gem_prime_export(struct drm_device *dev, 238 struct drm_gem_object *obj, int flags); 239 struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev, 240 struct dma_buf *buffer); 241 242 static inline int align_pitch(int pitch, int width, int bpp) 243 { 244 int bytespp = (bpp + 7) / 8; 245 /* in case someone tries to feed us a completely bogus stride: */ 246 pitch = max(pitch, width * bytespp); 247 /* PVR needs alignment to 8 pixels.. right now that is the most 248 * restrictive stride requirement.. 249 */ 250 return roundup(pitch, 8 * bytespp); 251 } 252 253 /* map crtc to vblank mask */ 254 uint32_t pipe2vbl(struct drm_crtc *crtc); 255 struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder); 256 257 /* should these be made into common util helpers? 258 */ 259 260 static inline int objects_lookup(struct drm_device *dev, 261 struct drm_file *filp, uint32_t pixel_format, 262 struct drm_gem_object **bos, const uint32_t *handles) 263 { 264 int i, n = drm_format_num_planes(pixel_format); 265 266 for (i = 0; i < n; i++) { 267 bos[i] = drm_gem_object_lookup(dev, filp, handles[i]); 268 if (!bos[i]) 269 goto fail; 270 271 } 272 273 return 0; 274 275 fail: 276 while (--i > 0) 277 drm_gem_object_unreference_unlocked(bos[i]); 278 279 return -ENOENT; 280 } 281 282 #endif /* __OMAP_DRV_H__ */ 283