diff options
Diffstat (limited to 'drivers/gpu/drm/omapdrm/omap_drv.h')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/omap_drv.h | 333 |
1 files changed, 333 insertions, 0 deletions
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h new file mode 100644 index 000000000000..d4f997bb4ac0 --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_drv.h @@ -0,0 +1,333 @@ +/* + * drivers/gpu/drm/omapdrm/omap_drv.h + * + * Copyright (C) 2011 Texas Instruments + * Author: Rob Clark <rob@ti.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __OMAP_DRV_H__ +#define __OMAP_DRV_H__ + +#include <video/omapdss.h> +#include <linux/module.h> +#include <linux/types.h> +#include <drm/drmP.h> +#include <drm/drm_crtc_helper.h> +#include <drm/omap_drm.h> +#include <linux/platform_data/omap_drm.h> + + +#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__) +#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */ + +#define MODULE_NAME "omapdrm" + +/* max # of mapper-id's that can be assigned.. todo, come up with a better + * (but still inexpensive) way to store/access per-buffer mapper private + * data.. + */ +#define MAX_MAPPERS 2 + +/* parameters which describe (unrotated) coordinates of scanout within a fb: */ +struct omap_drm_window { + uint32_t rotation; + int32_t crtc_x, crtc_y; /* signed because can be offscreen */ + uint32_t crtc_w, crtc_h; + uint32_t src_x, src_y; + uint32_t src_w, src_h; +}; + +/* Once GO bit is set, we can't make further updates to shadowed registers + * until the GO bit is cleared. So various parts in the kms code that need + * to update shadowed registers queue up a pair of callbacks, pre_apply + * which is called before setting GO bit, and post_apply that is called + * after GO bit is cleared. The crtc manages the queuing, and everyone + * else goes thru omap_crtc_apply() using these callbacks so that the + * code which has to deal w/ GO bit state is centralized. + */ +struct omap_drm_apply { + struct list_head pending_node, queued_node; + bool queued; + void (*pre_apply)(struct omap_drm_apply *apply); + void (*post_apply)(struct omap_drm_apply *apply); +}; + +/* For transiently registering for different DSS irqs that various parts + * of the KMS code need during setup/configuration. We these are not + * necessarily the same as what drm_vblank_get/put() are requesting, and + * the hysteresis in drm_vblank_put() is not necessarily desirable for + * internal housekeeping related irq usage. + */ +struct omap_drm_irq { + struct list_head node; + uint32_t irqmask; + bool registered; + void (*irq)(struct omap_drm_irq *irq, uint32_t irqstatus); +}; + +/* For KMS code that needs to wait for a certain # of IRQs: + */ +struct omap_irq_wait; +struct omap_irq_wait * omap_irq_wait_init(struct drm_device *dev, + uint32_t irqmask, int count); +int omap_irq_wait(struct drm_device *dev, struct omap_irq_wait *wait, + unsigned long timeout); + +struct omap_drm_private { + uint32_t omaprev; + + unsigned int num_crtcs; + struct drm_crtc *crtcs[8]; + + unsigned int num_planes; + struct drm_plane *planes[8]; + + unsigned int num_encoders; + struct drm_encoder *encoders[8]; + + unsigned int num_connectors; + struct drm_connector *connectors[8]; + + struct drm_fb_helper *fbdev; + + struct workqueue_struct *wq; + + /* list of GEM objects: */ + struct list_head obj_list; + + bool has_dmm; + + /* properties: */ + struct drm_property *rotation_prop; + struct drm_property *zorder_prop; + + /* irq handling: */ + struct list_head irq_list; /* list of omap_drm_irq */ + uint32_t vblank_mask; /* irq bits set for userspace vblank */ + struct omap_drm_irq error_handler; +}; + +/* this should probably be in drm-core to standardize amongst drivers */ +#define DRM_ROTATE_0 0 +#define DRM_ROTATE_90 1 +#define DRM_ROTATE_180 2 +#define DRM_ROTATE_270 3 +#define DRM_REFLECT_X 4 +#define DRM_REFLECT_Y 5 + +#ifdef CONFIG_DEBUG_FS +int omap_debugfs_init(struct drm_minor *minor); +void omap_debugfs_cleanup(struct drm_minor *minor); +void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m); +void omap_gem_describe(struct drm_gem_object *obj, struct seq_file *m); +void omap_gem_describe_objects(struct list_head *list, struct seq_file *m); +#endif + +#ifdef CONFIG_PM +int omap_gem_resume(struct device *dev); +#endif + +int omap_irq_enable_vblank(struct drm_device *dev, int crtc); +void omap_irq_disable_vblank(struct drm_device *dev, int crtc); +irqreturn_t omap_irq_handler(DRM_IRQ_ARGS); +void omap_irq_preinstall(struct drm_device *dev); +int omap_irq_postinstall(struct drm_device *dev); +void omap_irq_uninstall(struct drm_device *dev); +void omap_irq_register(struct drm_device *dev, struct omap_drm_irq *irq); +void omap_irq_unregister(struct drm_device *dev, struct omap_drm_irq *irq); +int omap_drm_irq_uninstall(struct drm_device *dev); +int omap_drm_irq_install(struct drm_device *dev); + +struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev); +void omap_fbdev_free(struct drm_device *dev); + +const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc); +enum omap_channel omap_crtc_channel(struct drm_crtc *crtc); +int omap_crtc_apply(struct drm_crtc *crtc, + struct omap_drm_apply *apply); +struct drm_crtc *omap_crtc_init(struct drm_device *dev, + struct drm_plane *plane, enum omap_channel channel, int id); + +struct drm_plane *omap_plane_init(struct drm_device *dev, + int plane_id, bool private_plane); +int omap_plane_dpms(struct drm_plane *plane, int mode); +int omap_plane_mode_set(struct drm_plane *plane, + struct drm_crtc *crtc, struct drm_framebuffer *fb, + int crtc_x, int crtc_y, + unsigned int crtc_w, unsigned int crtc_h, + uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h, + void (*fxn)(void *), void *arg); +void omap_plane_install_properties(struct drm_plane *plane, + struct drm_mode_object *obj); +int omap_plane_set_property(struct drm_plane *plane, + struct drm_property *property, uint64_t val); + +struct drm_encoder *omap_encoder_init(struct drm_device *dev, + struct omap_dss_device *dssdev); +int omap_encoder_set_enabled(struct drm_encoder *encoder, bool enabled); +int omap_encoder_update(struct drm_encoder *encoder, + struct omap_overlay_manager *mgr, + struct omap_video_timings *timings); + +struct drm_connector *omap_connector_init(struct drm_device *dev, + int connector_type, struct omap_dss_device *dssdev, + struct drm_encoder *encoder); +struct drm_encoder *omap_connector_attached_encoder( + struct drm_connector *connector); +void omap_connector_flush(struct drm_connector *connector, + int x, int y, int w, int h); + +void copy_timings_omap_to_drm(struct drm_display_mode *mode, + struct omap_video_timings *timings); +void copy_timings_drm_to_omap(struct omap_video_timings *timings, + struct drm_display_mode *mode); + +uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats, + uint32_t max_formats, enum omap_color_mode supported_modes); +struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev, + struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd); +struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev, + struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos); +struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p); +int omap_framebuffer_replace(struct drm_framebuffer *a, + struct drm_framebuffer *b, void *arg, + void (*unpin)(void *arg, struct drm_gem_object *bo)); +void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, + struct omap_drm_window *win, struct omap_overlay_info *info); +struct drm_connector *omap_framebuffer_get_next_connector( + struct drm_framebuffer *fb, struct drm_connector *from); +void omap_framebuffer_flush(struct drm_framebuffer *fb, + int x, int y, int w, int h); + +void omap_gem_init(struct drm_device *dev); +void omap_gem_deinit(struct drm_device *dev); + +struct drm_gem_object *omap_gem_new(struct drm_device *dev, + union omap_gem_size gsize, uint32_t flags); +int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file, + union omap_gem_size gsize, uint32_t flags, uint32_t *handle); +void omap_gem_free_object(struct drm_gem_object *obj); +int omap_gem_init_object(struct drm_gem_object *obj); +void *omap_gem_vaddr(struct drm_gem_object *obj); +int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, + uint32_t handle, uint64_t *offset); +int omap_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev, + uint32_t handle); +int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev, + struct drm_mode_create_dumb *args); +int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma); +int omap_gem_mmap_obj(struct drm_gem_object *obj, + struct vm_area_struct *vma); +int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); +int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op); +int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op); +int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op); +int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op, + void (*fxn)(void *arg), void *arg); +int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll); +void omap_gem_cpu_sync(struct drm_gem_object *obj, int pgoff); +void omap_gem_dma_sync(struct drm_gem_object *obj, + enum dma_data_direction dir); +int omap_gem_get_paddr(struct drm_gem_object *obj, + dma_addr_t *paddr, bool remap); +int omap_gem_put_paddr(struct drm_gem_object *obj); +int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages, + bool remap); +int omap_gem_put_pages(struct drm_gem_object *obj); +uint32_t omap_gem_flags(struct drm_gem_object *obj); +int omap_gem_rotated_paddr(struct drm_gem_object *obj, uint32_t orient, + int x, int y, dma_addr_t *paddr); +uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj); +size_t omap_gem_mmap_size(struct drm_gem_object *obj); +int omap_gem_tiled_size(struct drm_gem_object *obj, uint16_t *w, uint16_t *h); +int omap_gem_tiled_stride(struct drm_gem_object *obj, uint32_t orient); + +struct dma_buf *omap_gem_prime_export(struct drm_device *dev, + struct drm_gem_object *obj, int flags); +struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev, + struct dma_buf *buffer); + +static inline int align_pitch(int pitch, int width, int bpp) +{ + int bytespp = (bpp + 7) / 8; + /* in case someone tries to feed us a completely bogus stride: */ + pitch = max(pitch, width * bytespp); + /* PVR needs alignment to 8 pixels.. right now that is the most + * restrictive stride requirement.. + */ + return ALIGN(pitch, 8 * bytespp); +} + +static inline enum omap_channel pipe2chan(int pipe) +{ + int num_mgrs = dss_feat_get_num_mgrs(); + + /* + * We usually don't want to create a CRTC for each manager, + * at least not until we have a way to expose private planes + * to userspace. Otherwise there would not be enough video + * pipes left for drm planes. The higher #'d managers tend + * to have more features so start in reverse order. + */ + return num_mgrs - pipe - 1; +} + +/* map crtc to vblank mask */ +static inline uint32_t pipe2vbl(int crtc) +{ + enum omap_channel channel = pipe2chan(crtc); + return dispc_mgr_get_vsync_irq(channel); +} + +static inline int crtc2pipe(struct drm_device *dev, struct drm_crtc *crtc) +{ + struct omap_drm_private *priv = dev->dev_private; + int i; + + for (i = 0; i < ARRAY_SIZE(priv->crtcs); i++) + if (priv->crtcs[i] == crtc) + return i; + + BUG(); /* bogus CRTC ptr */ + return -1; +} + +/* should these be made into common util helpers? + */ + +static inline int objects_lookup(struct drm_device *dev, + struct drm_file *filp, uint32_t pixel_format, + struct drm_gem_object **bos, uint32_t *handles) +{ + int i, n = drm_format_num_planes(pixel_format); + + for (i = 0; i < n; i++) { + bos[i] = drm_gem_object_lookup(dev, filp, handles[i]); + if (!bos[i]) + goto fail; + + } + + return 0; + +fail: + while (--i > 0) + drm_gem_object_unreference_unlocked(bos[i]); + + return -ENOENT; +} + +#endif /* __OMAP_DRV_H__ */ |