diff options
Diffstat (limited to 'drivers/staging/omapdrm/omap_crtc.c')
-rw-r--r-- | drivers/staging/omapdrm/omap_crtc.c | 270 |
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; -} |