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