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![Joonas Lahtinen](/assets/img/avatar_default.png)
Avoid magic numbers and use the introduced defines. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
383 lines
10 KiB
C
383 lines
10 KiB
C
/*
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* drivers/gpu/drm/omapdrm/omap_plane.c
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*
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* Copyright (C) 2011 Texas Instruments
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* Author: Rob Clark <rob.clark@linaro.org>
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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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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_plane_helper.h>
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#include "omap_dmm_tiler.h"
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#include "omap_drv.h"
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/* some hackery because omapdss has an 'enum omap_plane' (which would be
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* better named omap_plane_id).. and compiler seems unhappy about having
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* both a 'struct omap_plane' and 'enum omap_plane'
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*/
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#define omap_plane _omap_plane
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/*
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* plane funcs
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*/
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#define to_omap_plane(x) container_of(x, struct omap_plane, base)
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struct omap_plane {
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struct drm_plane base;
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int id; /* TODO rename omap_plane -> omap_plane_id in omapdss so I can use the enum */
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const char *name;
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uint32_t nformats;
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uint32_t formats[32];
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struct omap_drm_irq error_irq;
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};
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struct omap_plane_state {
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struct drm_plane_state base;
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unsigned int zorder;
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};
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static inline struct omap_plane_state *
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to_omap_plane_state(struct drm_plane_state *state)
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{
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return container_of(state, struct omap_plane_state, base);
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}
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static int omap_plane_prepare_fb(struct drm_plane *plane,
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const struct drm_plane_state *new_state)
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{
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if (!new_state->fb)
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return 0;
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return omap_framebuffer_pin(new_state->fb);
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}
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static void omap_plane_cleanup_fb(struct drm_plane *plane,
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const struct drm_plane_state *old_state)
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{
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if (old_state->fb)
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omap_framebuffer_unpin(old_state->fb);
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}
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static void omap_plane_atomic_update(struct drm_plane *plane,
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struct drm_plane_state *old_state)
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{
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struct omap_plane *omap_plane = to_omap_plane(plane);
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struct drm_plane_state *state = plane->state;
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struct omap_plane_state *omap_state = to_omap_plane_state(state);
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struct omap_overlay_info info;
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struct omap_drm_window win;
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int ret;
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DBG("%s, crtc=%p fb=%p", omap_plane->name, state->crtc, state->fb);
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memset(&info, 0, sizeof(info));
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info.rotation_type = OMAP_DSS_ROT_DMA;
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info.rotation = OMAP_DSS_ROT_0;
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info.global_alpha = 0xff;
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info.mirror = 0;
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info.zorder = omap_state->zorder;
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memset(&win, 0, sizeof(win));
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win.rotation = state->rotation;
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win.crtc_x = state->crtc_x;
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win.crtc_y = state->crtc_y;
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win.crtc_w = state->crtc_w;
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win.crtc_h = state->crtc_h;
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/*
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* src values are in Q16 fixed point, convert to integer.
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* omap_framebuffer_update_scanout() takes adjusted src.
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*/
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win.src_x = state->src_x >> 16;
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win.src_y = state->src_y >> 16;
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switch (state->rotation & DRM_ROTATE_MASK) {
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case BIT(DRM_ROTATE_90):
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case BIT(DRM_ROTATE_270):
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win.src_w = state->src_h >> 16;
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win.src_h = state->src_w >> 16;
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break;
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default:
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win.src_w = state->src_w >> 16;
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win.src_h = state->src_h >> 16;
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break;
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}
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/* update scanout: */
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omap_framebuffer_update_scanout(state->fb, &win, &info);
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DBG("%dx%d -> %dx%d (%d)", info.width, info.height,
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info.out_width, info.out_height,
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info.screen_width);
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DBG("%d,%d %pad %pad", info.pos_x, info.pos_y,
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&info.paddr, &info.p_uv_addr);
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dispc_ovl_set_channel_out(omap_plane->id,
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omap_crtc_channel(state->crtc));
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/* and finally, update omapdss: */
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ret = dispc_ovl_setup(omap_plane->id, &info, false,
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omap_crtc_timings(state->crtc), false);
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if (WARN_ON(ret)) {
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dispc_ovl_enable(omap_plane->id, false);
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return;
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}
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dispc_ovl_enable(omap_plane->id, true);
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}
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static void omap_plane_atomic_disable(struct drm_plane *plane,
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struct drm_plane_state *old_state)
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{
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struct omap_plane_state *omap_state = to_omap_plane_state(plane->state);
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struct omap_plane *omap_plane = to_omap_plane(plane);
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plane->state->rotation = BIT(DRM_ROTATE_0);
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omap_state->zorder = plane->type == DRM_PLANE_TYPE_PRIMARY
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? 0 : omap_plane->id;
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dispc_ovl_enable(omap_plane->id, false);
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}
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static int omap_plane_atomic_check(struct drm_plane *plane,
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struct drm_plane_state *state)
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{
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struct drm_crtc_state *crtc_state;
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if (!state->crtc)
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return 0;
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crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
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if (IS_ERR(crtc_state))
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return PTR_ERR(crtc_state);
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if (state->crtc_x < 0 || state->crtc_y < 0)
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return -EINVAL;
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if (state->crtc_x + state->crtc_w > crtc_state->adjusted_mode.hdisplay)
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return -EINVAL;
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if (state->crtc_y + state->crtc_h > crtc_state->adjusted_mode.vdisplay)
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return -EINVAL;
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return 0;
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}
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static const struct drm_plane_helper_funcs omap_plane_helper_funcs = {
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.prepare_fb = omap_plane_prepare_fb,
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.cleanup_fb = omap_plane_cleanup_fb,
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.atomic_check = omap_plane_atomic_check,
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.atomic_update = omap_plane_atomic_update,
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.atomic_disable = omap_plane_atomic_disable,
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};
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static void omap_plane_reset(struct drm_plane *plane)
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{
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struct omap_plane *omap_plane = to_omap_plane(plane);
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struct omap_plane_state *omap_state;
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if (plane->state && plane->state->fb)
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drm_framebuffer_unreference(plane->state->fb);
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kfree(plane->state);
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plane->state = NULL;
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omap_state = kzalloc(sizeof(*omap_state), GFP_KERNEL);
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if (omap_state == NULL)
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return;
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/*
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* Set defaults depending on whether we are a primary or overlay
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* plane.
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*/
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omap_state->zorder = plane->type == DRM_PLANE_TYPE_PRIMARY
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? 0 : omap_plane->id;
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omap_state->base.rotation = BIT(DRM_ROTATE_0);
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plane->state = &omap_state->base;
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plane->state->plane = plane;
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}
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static void omap_plane_destroy(struct drm_plane *plane)
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{
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struct omap_plane *omap_plane = to_omap_plane(plane);
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DBG("%s", omap_plane->name);
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omap_irq_unregister(plane->dev, &omap_plane->error_irq);
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drm_plane_cleanup(plane);
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kfree(omap_plane);
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}
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/* helper to install properties which are common to planes and crtcs */
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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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{
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struct drm_device *dev = plane->dev;
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struct omap_drm_private *priv = dev->dev_private;
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if (priv->has_dmm) {
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struct drm_property *prop = dev->mode_config.rotation_property;
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drm_object_attach_property(obj, prop, 0);
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}
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drm_object_attach_property(obj, priv->zorder_prop, 0);
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}
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static struct drm_plane_state *
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omap_plane_atomic_duplicate_state(struct drm_plane *plane)
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{
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struct omap_plane_state *state;
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struct omap_plane_state *copy;
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if (WARN_ON(!plane->state))
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return NULL;
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state = to_omap_plane_state(plane->state);
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copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
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if (copy == NULL)
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return NULL;
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__drm_atomic_helper_plane_duplicate_state(plane, ©->base);
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return ©->base;
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}
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static void omap_plane_atomic_destroy_state(struct drm_plane *plane,
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struct drm_plane_state *state)
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{
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__drm_atomic_helper_plane_destroy_state(plane, state);
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kfree(to_omap_plane_state(state));
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}
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static int omap_plane_atomic_set_property(struct drm_plane *plane,
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struct drm_plane_state *state,
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struct drm_property *property,
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uint64_t val)
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{
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struct omap_drm_private *priv = plane->dev->dev_private;
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struct omap_plane_state *omap_state = to_omap_plane_state(state);
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if (property == priv->zorder_prop)
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omap_state->zorder = val;
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else
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return -EINVAL;
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return 0;
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}
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static int omap_plane_atomic_get_property(struct drm_plane *plane,
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const struct drm_plane_state *state,
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struct drm_property *property,
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uint64_t *val)
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{
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struct omap_drm_private *priv = plane->dev->dev_private;
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const struct omap_plane_state *omap_state =
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container_of(state, const struct omap_plane_state, base);
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if (property == priv->zorder_prop)
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*val = omap_state->zorder;
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else
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return -EINVAL;
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return 0;
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}
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static const struct drm_plane_funcs omap_plane_funcs = {
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.update_plane = drm_atomic_helper_update_plane,
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.disable_plane = drm_atomic_helper_disable_plane,
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.reset = omap_plane_reset,
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.destroy = omap_plane_destroy,
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.set_property = drm_atomic_helper_plane_set_property,
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.atomic_duplicate_state = omap_plane_atomic_duplicate_state,
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.atomic_destroy_state = omap_plane_atomic_destroy_state,
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.atomic_set_property = omap_plane_atomic_set_property,
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.atomic_get_property = omap_plane_atomic_get_property,
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};
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static void omap_plane_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
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{
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struct omap_plane *omap_plane =
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container_of(irq, struct omap_plane, error_irq);
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DRM_ERROR_RATELIMITED("%s: errors: %08x\n", omap_plane->name,
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irqstatus);
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}
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static const char *plane_names[] = {
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[OMAP_DSS_GFX] = "gfx",
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[OMAP_DSS_VIDEO1] = "vid1",
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[OMAP_DSS_VIDEO2] = "vid2",
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[OMAP_DSS_VIDEO3] = "vid3",
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};
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static const uint32_t error_irqs[] = {
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[OMAP_DSS_GFX] = DISPC_IRQ_GFX_FIFO_UNDERFLOW,
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[OMAP_DSS_VIDEO1] = DISPC_IRQ_VID1_FIFO_UNDERFLOW,
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[OMAP_DSS_VIDEO2] = DISPC_IRQ_VID2_FIFO_UNDERFLOW,
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[OMAP_DSS_VIDEO3] = DISPC_IRQ_VID3_FIFO_UNDERFLOW,
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};
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/* initialize plane */
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struct drm_plane *omap_plane_init(struct drm_device *dev,
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int id, enum drm_plane_type type)
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{
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struct omap_drm_private *priv = dev->dev_private;
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struct drm_plane *plane;
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struct omap_plane *omap_plane;
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int ret;
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DBG("%s: type=%d", plane_names[id], type);
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omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
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if (!omap_plane)
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return ERR_PTR(-ENOMEM);
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omap_plane->nformats = omap_framebuffer_get_formats(
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omap_plane->formats, ARRAY_SIZE(omap_plane->formats),
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dss_feat_get_supported_color_modes(id));
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omap_plane->id = id;
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omap_plane->name = plane_names[id];
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plane = &omap_plane->base;
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omap_plane->error_irq.irqmask = error_irqs[id];
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omap_plane->error_irq.irq = omap_plane_error_irq;
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omap_irq_register(dev, &omap_plane->error_irq);
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ret = drm_universal_plane_init(dev, plane, (1 << priv->num_crtcs) - 1,
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&omap_plane_funcs, omap_plane->formats,
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omap_plane->nformats, type);
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if (ret < 0)
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goto error;
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drm_plane_helper_add(plane, &omap_plane_helper_funcs);
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omap_plane_install_properties(plane, &plane->base);
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return plane;
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error:
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omap_irq_unregister(plane->dev, &omap_plane->error_irq);
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kfree(omap_plane);
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return NULL;
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}
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