aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/staging/omapdrm/omap_crtc.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/omapdrm/omap_crtc.c')
-rw-r--r--drivers/staging/omapdrm/omap_crtc.c270
1 files changed, 0 insertions, 270 deletions
diff --git a/drivers/staging/omapdrm/omap_crtc.c b/drivers/staging/omapdrm/omap_crtc.c
deleted file mode 100644
index d87bd84257bd..000000000000
--- a/drivers/staging/omapdrm/omap_crtc.c
+++ /dev/null
@@ -1,270 +0,0 @@
-/*
- * drivers/staging/omapdrm/omap_crtc.c
- *
- * 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/>.
- */
-
-#include "omap_drv.h"
-
-#include <drm/drm_mode.h>
-#include "drm_crtc.h"
-#include "drm_crtc_helper.h"
-
-#define to_omap_crtc(x) container_of(x, struct omap_crtc, base)
-
-struct omap_crtc {
- struct drm_crtc base;
- struct drm_plane *plane;
- const char *name;
- int id;
-
- /* if there is a pending flip, these will be non-null: */
- struct drm_pending_vblank_event *event;
- struct drm_framebuffer *old_fb;
-};
-
-static void omap_crtc_destroy(struct drm_crtc *crtc)
-{
- struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
- omap_crtc->plane->funcs->destroy(omap_crtc->plane);
- drm_crtc_cleanup(crtc);
- kfree(omap_crtc);
-}
-
-static void omap_crtc_dpms(struct drm_crtc *crtc, int mode)
-{
- struct omap_drm_private *priv = crtc->dev->dev_private;
- struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
- int i;
-
- WARN_ON(omap_plane_dpms(omap_crtc->plane, mode));
-
- for (i = 0; i < priv->num_planes; i++) {
- struct drm_plane *plane = priv->planes[i];
- if (plane->crtc == crtc)
- WARN_ON(omap_plane_dpms(plane, mode));
- }
-}
-
-static bool omap_crtc_mode_fixup(struct drm_crtc *crtc,
- const struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
- return true;
-}
-
-static int omap_crtc_mode_set(struct drm_crtc *crtc,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode,
- int x, int y,
- struct drm_framebuffer *old_fb)
-{
- struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
- struct drm_plane *plane = omap_crtc->plane;
-
- return omap_plane_mode_set(plane, crtc, crtc->fb,
- 0, 0, mode->hdisplay, mode->vdisplay,
- x << 16, y << 16,
- mode->hdisplay << 16, mode->vdisplay << 16);
-}
-
-static void omap_crtc_prepare(struct drm_crtc *crtc)
-{
- struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
- DBG("%s", omap_crtc->name);
- omap_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
-}
-
-static void omap_crtc_commit(struct drm_crtc *crtc)
-{
- struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
- DBG("%s", omap_crtc->name);
- omap_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
-}
-
-static int omap_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
- struct drm_framebuffer *old_fb)
-{
- struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
- struct drm_plane *plane = omap_crtc->plane;
- struct drm_display_mode *mode = &crtc->mode;
-
- return plane->funcs->update_plane(plane, crtc, crtc->fb,
- 0, 0, mode->hdisplay, mode->vdisplay,
- x << 16, y << 16,
- mode->hdisplay << 16, mode->vdisplay << 16);
-}
-
-static void omap_crtc_load_lut(struct drm_crtc *crtc)
-{
-}
-
-static void vblank_cb(void *arg)
-{
- static uint32_t sequence;
- struct drm_crtc *crtc = arg;
- struct drm_device *dev = crtc->dev;
- struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
- struct drm_pending_vblank_event *event = omap_crtc->event;
- unsigned long flags;
- struct timeval now;
-
- WARN_ON(!event);
-
- omap_crtc->event = NULL;
-
- /* wakeup userspace */
- if (event) {
- do_gettimeofday(&now);
-
- spin_lock_irqsave(&dev->event_lock, flags);
- /* TODO: we can't yet use the vblank time accounting,
- * because omapdss lower layer is the one that knows
- * the irq # and registers the handler, which more or
- * less defeats how drm_irq works.. for now just fake
- * the sequence number and use gettimeofday..
- *
- event->event.sequence = drm_vblank_count_and_time(
- dev, omap_crtc->id, &now);
- */
- event->event.sequence = sequence++;
- event->event.tv_sec = now.tv_sec;
- event->event.tv_usec = now.tv_usec;
- list_add_tail(&event->base.link,
- &event->base.file_priv->event_list);
- wake_up_interruptible(&event->base.file_priv->event_wait);
- spin_unlock_irqrestore(&dev->event_lock, flags);
- }
-}
-
-static void page_flip_cb(void *arg)
-{
- struct drm_crtc *crtc = arg;
- struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
- struct drm_framebuffer *old_fb = omap_crtc->old_fb;
- struct drm_gem_object *bo;
-
- omap_crtc->old_fb = NULL;
-
- omap_crtc_mode_set_base(crtc, crtc->x, crtc->y, old_fb);
-
- /* really we'd like to setup the callback atomically w/ setting the
- * new scanout buffer to avoid getting stuck waiting an extra vblank
- * cycle.. for now go for correctness and later figure out speed..
- */
- omap_plane_on_endwin(omap_crtc->plane, vblank_cb, crtc);
-
- bo = omap_framebuffer_bo(crtc->fb, 0);
- drm_gem_object_unreference_unlocked(bo);
-}
-
-static int omap_crtc_page_flip_locked(struct drm_crtc *crtc,
- struct drm_framebuffer *fb,
- struct drm_pending_vblank_event *event)
-{
- struct drm_device *dev = crtc->dev;
- struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
- struct drm_gem_object *bo;
-
- DBG("%d -> %d", crtc->fb ? crtc->fb->base.id : -1, fb->base.id);
-
- if (omap_crtc->event) {
- dev_err(dev->dev, "already a pending flip\n");
- return -EINVAL;
- }
-
- omap_crtc->old_fb = crtc->fb;
- omap_crtc->event = event;
- crtc->fb = fb;
-
- /*
- * Hold a reference temporarily until the crtc is updated
- * and takes the reference to the bo. This avoids it
- * getting freed from under us:
- */
- bo = omap_framebuffer_bo(fb, 0);
- drm_gem_object_reference(bo);
-
- omap_gem_op_async(bo, OMAP_GEM_READ, page_flip_cb, crtc);
-
- return 0;
-}
-
-static int omap_crtc_set_property(struct drm_crtc *crtc,
- struct drm_property *property, uint64_t val)
-{
- struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
- struct omap_drm_private *priv = crtc->dev->dev_private;
-
- if (property == priv->rotation_prop) {
- crtc->invert_dimensions =
- !!(val & ((1LL << DRM_ROTATE_90) | (1LL << DRM_ROTATE_270)));
- }
-
- return omap_plane_set_property(omap_crtc->plane, property, val);
-}
-
-static const struct drm_crtc_funcs omap_crtc_funcs = {
- .set_config = drm_crtc_helper_set_config,
- .destroy = omap_crtc_destroy,
- .page_flip = omap_crtc_page_flip_locked,
- .set_property = omap_crtc_set_property,
-};
-
-static const struct drm_crtc_helper_funcs omap_crtc_helper_funcs = {
- .dpms = omap_crtc_dpms,
- .mode_fixup = omap_crtc_mode_fixup,
- .mode_set = omap_crtc_mode_set,
- .prepare = omap_crtc_prepare,
- .commit = omap_crtc_commit,
- .mode_set_base = omap_crtc_mode_set_base,
- .load_lut = omap_crtc_load_lut,
-};
-
-/* initialize crtc */
-struct drm_crtc *omap_crtc_init(struct drm_device *dev,
- struct omap_overlay *ovl, int id)
-{
- struct drm_crtc *crtc = NULL;
- struct omap_crtc *omap_crtc = kzalloc(sizeof(*omap_crtc), GFP_KERNEL);
-
- DBG("%s", ovl->name);
-
- if (!omap_crtc) {
- dev_err(dev->dev, "could not allocate CRTC\n");
- goto fail;
- }
-
- crtc = &omap_crtc->base;
-
- omap_crtc->plane = omap_plane_init(dev, ovl, (1 << id), true);
- omap_crtc->plane->crtc = crtc;
- omap_crtc->name = ovl->name;
- omap_crtc->id = id;
-
- drm_crtc_init(dev, crtc, &omap_crtc_funcs);
- drm_crtc_helper_add(crtc, &omap_crtc_helper_funcs);
-
- omap_plane_install_properties(omap_crtc->plane, &crtc->base);
-
- return crtc;
-
-fail:
- if (crtc)
- omap_crtc_destroy(crtc);
-
- return NULL;
-}