From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Wed, 5 Aug 2015 17:04:01 -0300
Subject: Initial import

---
 drivers/gpu/drm/omapdrm/omap_drv.h | 298 +++++++++++++++++++++++++++++++++++++
 1 file changed, 298 insertions(+)
 create mode 100644 drivers/gpu/drm/omapdrm/omap_drv.h

(limited to 'drivers/gpu/drm/omapdrm/omap_drv.h')

diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h
new file mode 100644
index 000000000..b31c79f15
--- /dev/null
+++ b/drivers/gpu/drm/omapdrm/omap_drv.h
@@ -0,0 +1,298 @@
+/*
+ * 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 <drm/drm_gem.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;
+
+	/* lock for obj_list below */
+	spinlock_t list_lock;
+
+	/* 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;
+};
+
+
+#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_id);
+void omap_irq_disable_vblank(struct drm_device *dev, int crtc_id);
+irqreturn_t omap_irq_handler(int irq, void *arg);
+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);
+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);
+void omap_crtc_pre_init(void);
+void omap_crtc_pre_uninit(void);
+struct drm_crtc *omap_crtc_init(struct drm_device *dev,
+		struct drm_plane *plane, enum omap_channel channel, int id);
+void omap_crtc_flush(struct drm_crtc *crtc);
+
+struct drm_plane *omap_plane_init(struct drm_device *dev,
+		int id, enum drm_plane_type type);
+int omap_plane_set_enable(struct drm_plane *plane, bool enable);
+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,
+			unsigned int src_x, unsigned int src_y,
+			unsigned int src_w, unsigned int 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);
+bool omap_connector_get_hdmi_mode(struct drm_connector *connector);
+
+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_pin(struct drm_framebuffer *fb);
+int omap_framebuffer_unpin(struct drm_framebuffer *fb);
+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_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);
+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_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);
+}
+
+/* map crtc to vblank mask */
+uint32_t pipe2vbl(struct drm_crtc *crtc);
+struct omap_dss_device *omap_encoder_get_dssdev(struct drm_encoder *encoder);
+
+/* 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__ */
-- 
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