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 28 #include <drm/drmP.h> 29 #include <drm/drm_crtc_helper.h> 30 #include <drm/drm_gem.h> 31 #include <drm/omap_drm.h> 32 33 #include "dss/omapdss.h" 34 35 #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) 36 #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */ 37 38 #define MODULE_NAME "omapdrm" 39 40 struct omap_drm_usergart; 41 42 /* parameters which describe (unrotated) coordinates of scanout within a fb: */ 43 struct omap_drm_window { 44 uint32_t rotation; 45 int32_t crtc_x, crtc_y; /* signed because can be offscreen */ 46 uint32_t crtc_w, crtc_h; 47 uint32_t src_x, src_y; 48 uint32_t src_w, src_h; 49 }; 50 51 /* For transiently registering for different DSS irqs that various parts 52 * of the KMS code need during setup/configuration. We these are not 53 * necessarily the same as what drm_vblank_get/put() are requesting, and 54 * the hysteresis in drm_vblank_put() is not necessarily desirable for 55 * internal housekeeping related irq usage. 56 */ 57 struct omap_drm_irq { 58 struct list_head node; 59 uint32_t irqmask; 60 bool registered; 61 void (*irq)(struct omap_drm_irq *irq, uint32_t irqstatus); 62 }; 63 64 /* For KMS code that needs to wait for a certain # of IRQs: 65 */ 66 struct omap_irq_wait; 67 struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev, 68 uint32_t irqmask, int count); 69 int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait, 70 unsigned long timeout); 71 72 struct omap_drm_private { 73 uint32_t omaprev; 74 75 unsigned int num_crtcs; 76 struct drm_crtc *crtcs[8]; 77 78 unsigned int num_planes; 79 struct drm_plane *planes[8]; 80 81 unsigned int num_encoders; 82 struct drm_encoder *encoders[8]; 83 84 unsigned int num_connectors; 85 struct drm_connector *connectors[8]; 86 87 struct drm_fb_helper *fbdev; 88 89 struct workqueue_struct *wq; 90 91 /* lock for obj_list below */ 92 spinlock_t list_lock; 93 94 /* list of GEM objects: */ 95 struct list_head obj_list; 96 97 struct omap_drm_usergart *usergart; 98 bool has_dmm; 99 100 /* properties: */ 101 struct drm_property *zorder_prop; 102 103 /* irq handling: */ 104 struct list_head irq_list; /* list of omap_drm_irq */ 105 uint32_t vblank_mask; /* irq bits set for userspace vblank */ 106 struct omap_drm_irq error_handler; 107 108 /* atomic commit */ 109 struct { 110 wait_queue_head_t wait; 111 u32 pending; 112 spinlock_t lock; /* Protects commit.pending */ 113 } commit; 114 }; 115 116 117 #ifdef CONFIG_DEBUG_FS 118 int omap_debugfs_init(struct drm_minor *minor); 119 void omap_debugfs_cleanup(struct drm_minor *minor); 120 void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m); 121 void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m); 122 void omap_gem_describe_objects(struct list_head *list, struct seq_file *m); 123 #endif 124 125 #ifdef CONFIG_PM 126 int omap_gem_resume(struct device *dev); 127 #endif 128 129 int omap_irq_enable_vblank(struct drm_device *dev, unsigned int pipe); 130 void omap_irq_disable_vblank(struct drm_device *dev, unsigned int pipe); 131 void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); 132 void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); 133 void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); 134 void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); 135 void omap_drm_irq_uninstall(struct drm_device *dev); 136 int omap_drm_irq_install(struct drm_device *dev); 137 138 #ifdef CONFIG_DRM_FBDEV_EMULATION 139 struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev); 140 void omap_fbdev_free(struct drm_device *dev); 141 #else 142 static inline struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev) 143 { 144 return NULL; 145 } 146 static inline void omap_fbdev_free(struct drm_device *dev) 147 { 148 } 149 #endif 150 151 struct videomode *omap_crtc_timings(struct drm_crtc *crtc); 152 enum omap_channel omap_crtc_channel(struct drm_crtc *crtc); 153 void omap_crtc_pre_init(void); 154 void omap_crtc_pre_uninit(void); 155 struct drm_crtc *omap_crtc_init(struct drm_device *dev, 156 struct drm_plane *plane, enum omap_channel channel, int id); 157 int omap_crtc_wait_pending(struct drm_crtc *crtc); 158 159 struct drm_plane *omap_plane_init(struct drm_device *dev, 160 int id, enum drm_plane_type type); 161 void omap_plane_install_properties(struct drm_plane *plane, 162 struct drm_mode_object *obj); 163 164 struct drm_encoder *omap_encoder_init(struct drm_device *dev, 165 struct omap_dss_device *dssdev); 166 167 struct drm_connector *omap_connector_init(struct drm_device *dev, 168 int connector_type, struct omap_dss_device *dssdev, 169 struct drm_encoder *encoder); 170 struct drm_encoder *omap_connector_attached_encoder( 171 struct drm_connector *connector); 172 bool omap_connector_get_hdmi_mode(struct drm_connector *connector); 173 174 uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats, 175 uint32_t max_formats, enum omap_color_mode supported_modes); 176 struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev, 177 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd); 178 struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev, 179 const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos); 180 int omap_framebuffer_pin(struct drm_framebuffer *fb); 181 void omap_framebuffer_unpin(struct drm_framebuffer *fb); 182 void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, 183 struct omap_drm_window *win, struct omap_overlay_info *info); 184 struct drm_connector *omap_framebuffer_get_next_connector( 185 struct drm_framebuffer *fb, struct drm_connector *from); 186 bool omap_framebuffer_supports_rotation(struct drm_framebuffer *fb); 187 188 void omap_gem_init(struct drm_device *dev); 189 void omap_gem_deinit(struct drm_device *dev); 190 191 struct drm_gem_object *omap_gem_new(struct drm_device *dev, 192 union omap_gem_size gsize, uint32_t flags); 193 struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size, 194 struct sg_table *sgt); 195 int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file, 196 union omap_gem_size gsize, uint32_t flags, uint32_t *handle); 197 void omap_gem_free_object(struct drm_gem_object *obj); 198 void *omap_gem_vaddr(struct drm_gem_object *obj); 199 int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, 200 uint32_t handle, uint64_t *offset); 201 int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev, 202 struct drm_mode_create_dumb *args); 203 int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma); 204 int omap_gem_mmap_obj(struct drm_gem_object *obj, 205 struct vm_area_struct *vma); 206 int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); 207 int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op); 208 int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op); 209 int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op); 210 int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op, 211 void (*fxn)(void *arg), void *arg); 212 int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll); 213 void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff); 214 void omap_gem_dma_sync(struct drm_gem_object *obj, 215 enum dma_data_direction dir); 216 int omap_gem_get_paddr(struct drm_gem_object *obj, 217 dma_addr_t *paddr, bool remap); 218 void omap_gem_put_paddr(struct drm_gem_object *obj); 219 int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages, 220 bool remap); 221 int omap_gem_put_pages(struct drm_gem_object *obj); 222 uint32_t omap_gem_flags(struct drm_gem_object *obj); 223 int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient, 224 int x, int y, dma_addr_t *paddr); 225 uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj); 226 size_t omap_gem_mmap_size(struct drm_gem_object *obj); 227 int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient); 228 229 struct dma_buf *omap_gem_prime_export(struct drm_device *dev, 230 struct drm_gem_object *obj, int flags); 231 struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev, 232 struct dma_buf *buffer); 233 234 /* map crtc to vblank mask */ 235 uint32_t pipe2vbl(struct drm_crtc *crtc); 236 struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder); 237 238 /* should these be made into common util helpers? 239 */ 240 241 static inline int objects_lookup( 242 struct drm_file *filp, uint32_t pixel_format, 243 struct drm_gem_object **bos, const uint32_t *handles) 244 { 245 int i, n = drm_format_num_planes(pixel_format); 246 247 for (i = 0; i < n; i++) { 248 bos[i] = drm_gem_object_lookup(filp, handles[i]); 249 if (!bos[i]) 250 goto fail; 251 252 } 253 254 return 0; 255 256 fail: 257 while (--i > 0) 258 drm_gem_object_unreference_unlocked(bos[i]); 259 260 return -ENOENT; 261 } 262 263 #endif /* __OMAP_DRV_H__ */ 264