LXR linux/drivers/gpu/drm/omapdrm/omap

   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
  40struct omap_drm_usergart;
  41
  42/* parameters which describe (unrotated) coordinates of scanout within a fb: */
  43struct 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 */
  57struct 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 */
  66struct omap_irq_wait;
  67struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev,
  68                uint32_t irqmask, int count);
  69int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait,
  70                unsigned long timeout);
  71
  72struct 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
 118int omap_debugfs_init(struct drm_minor *minor);
 119void omap_debugfs_cleanup(struct drm_minor *minor);
 120void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m);
 121void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
 122void omap_gem_describe_objects(struct list_head *list, struct seq_file *m);
 123#endif
 124
 125#ifdef CONFIG_PM
 126int omap_gem_resume(struct device *dev);
 127#endif
 128
 129int omap_irq_enable_vblank(struct drm_device *dev, unsigned int pipe);
 130void omap_irq_disable_vblank(struct drm_device *dev, unsigned int pipe);
 131void __omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq);
 132void __omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq);
 133void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq);
 134void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq);
 135void omap_drm_irq_uninstall(struct drm_device *dev);
 136int omap_drm_irq_install(struct drm_device *dev);
 137
 138#ifdef CONFIG_DRM_FBDEV_EMULATION
 139struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
 140void omap_fbdev_free(struct drm_device *dev);
 141#else
 142static inline struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev)
 143{
 144        return NULL;
 145}
 146static inline void omap_fbdev_free(struct drm_device *dev)
 147{
 148}
 149#endif
 150
 151struct videomode *omap_crtc_timings(struct drm_crtc *crtc);
 152enum omap_channel omap_crtc_channel(struct drm_crtc *crtc);
 153void omap_crtc_pre_init(void);
 154void omap_crtc_pre_uninit(void);
 155struct drm_crtc *omap_crtc_init(struct drm_device *dev,
 156                struct drm_plane *plane, enum omap_channel channel, int id);
 157int omap_crtc_wait_pending(struct drm_crtc *crtc);
 158
 159struct drm_plane *omap_plane_init(struct drm_device *dev,
 160                int id, enum drm_plane_type type,
 161                u32 possible_crtcs);
 162void omap_plane_install_properties(struct drm_plane *plane,
 163                struct drm_mode_object *obj);
 164
 165struct drm_encoder *omap_encoder_init(struct drm_device *dev,
 166                struct omap_dss_device *dssdev);
 167
 168struct drm_connector *omap_connector_init(struct drm_device *dev,
 169                int connector_type, struct omap_dss_device *dssdev,
 170                struct drm_encoder *encoder);
 171struct drm_encoder *omap_connector_attached_encoder(
 172                struct drm_connector *connector);
 173bool omap_connector_get_hdmi_mode(struct drm_connector *connector);
 174
 175uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats,
 176                uint32_t max_formats, enum omap_color_mode supported_modes);
 177struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
 178                struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd);
 179struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
 180                const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos);
 181int omap_framebuffer_pin(struct drm_framebuffer *fb);
 182void omap_framebuffer_unpin(struct drm_framebuffer *fb);
 183void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
 184                struct omap_drm_window *win, struct omap_overlay_info *info);
 185struct drm_connector *omap_framebuffer_get_next_connector(
 186                struct drm_framebuffer *fb, struct drm_connector *from);
 187bool omap_framebuffer_supports_rotation(struct drm_framebuffer *fb);
 188
 189void omap_gem_init(struct drm_device *dev);
 190void omap_gem_deinit(struct drm_device *dev);
 191
 192struct drm_gem_object *omap_gem_new(struct drm_device *dev,
 193                union omap_gem_size gsize, uint32_t flags);
 194struct drm_gem_object *omap_gem_new_dmabuf(struct drm_device *dev, size_t size,
 195                struct sg_table *sgt);
 196int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
 197                union omap_gem_size gsize, uint32_t flags, uint32_t *handle);
 198void omap_gem_free_object(struct drm_gem_object *obj);
 199void *omap_gem_vaddr(struct drm_gem_object *obj);
 200int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
 201                uint32_t handle, uint64_t *offset);
 202int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 203                struct drm_mode_create_dumb *args);
 204int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 205int omap_gem_mmap_obj(struct drm_gem_object *obj,
 206                struct vm_area_struct *vma);
 207int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 208int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op);
 209int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op);
 210int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op);
 211int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op,
 212                void (*fxn)(void *arg), void *arg);
 213int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll);
 214void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff);
 215void omap_gem_dma_sync(struct drm_gem_object *obj,
 216                enum dma_data_direction dir);
 217int omap_gem_get_paddr(struct drm_gem_object *obj,
 218                dma_addr_t *paddr, bool remap);
 219void omap_gem_put_paddr(struct drm_gem_object *obj);
 220int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages,
 221                bool remap);
 222int omap_gem_put_pages(struct drm_gem_object *obj);
 223uint32_t omap_gem_flags(struct drm_gem_object *obj);
 224int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient,
 225                int x, int y, dma_addr_t *paddr);
 226uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj);
 227size_t omap_gem_mmap_size(struct drm_gem_object *obj);
 228int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient);
 229
 230struct dma_buf *omap_gem_prime_export(struct drm_device *dev,
 231                struct drm_gem_object *obj, int flags);
 232struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev,
 233                struct dma_buf *buffer);
 234
 235/* map crtc to vblank mask */
 236uint32_t pipe2vbl(struct drm_crtc *crtc);
 237struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder);
 238
 239/* should these be made into common util helpers?
 240 */
 241
 242static inline int objects_lookup(
 243                struct drm_file *filp, uint32_t pixel_format,
 244                struct drm_gem_object **bos, const uint32_t *handles)
 245{
 246        int i, n = drm_format_num_planes(pixel_format);
 247
 248        for (i = 0; i < n; i++) {
 249                bos[i] = drm_gem_object_lookup(filp, handles[i]);
 250                if (!bos[i])
 251                        goto fail;
 252
 253        }
 254
 255        return 0;
 256
 257fail:
 258        while (--i > 0)
 259                drm_gem_object_unreference_unlocked(bos[i]);
 260
 261        return -ENOENT;
 262}
 263
 264#endif /* __OMAP_DRV_H__ */
 265