diff options
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_drm_plane.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_drm_plane.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c deleted file mode 100644 index 1a59b9ab4aa8..000000000000 --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * Copyright (c) 2015 MediaTek Inc. - * Author: CK Hu <ck.hu@mediatek.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. - */ - -#include <drm/drmP.h> -#include <drm/drm_atomic.h> -#include <drm/drm_atomic_helper.h> -#include <drm/drm_plane_helper.h> - -#include "mtk_drm_crtc.h" -#include "mtk_drm_ddp_comp.h" -#include "mtk_drm_drv.h" -#include "mtk_drm_fb.h" -#include "mtk_drm_gem.h" -#include "mtk_drm_plane.h" - -static const u32 formats[] = { - DRM_FORMAT_XRGB8888, - DRM_FORMAT_ARGB8888, - DRM_FORMAT_RGB565, - DRM_FORMAT_UYVY, - DRM_FORMAT_YUYV, -}; - -static void mtk_plane_reset(struct drm_plane *plane) -{ - struct mtk_plane_state *state; - - if (plane->state) { - __drm_atomic_helper_plane_destroy_state(plane->state); - - state = to_mtk_plane_state(plane->state); - memset(state, 0, sizeof(*state)); - } else { - state = kzalloc(sizeof(*state), GFP_KERNEL); - if (!state) - return; - plane->state = &state->base; - } - - state->base.plane = plane; - state->pending.format = DRM_FORMAT_RGB565; -} - -static struct drm_plane_state *mtk_plane_duplicate_state(struct drm_plane *plane) -{ - struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state); - struct mtk_plane_state *state; - - state = kzalloc(sizeof(*state), GFP_KERNEL); - if (!state) - return NULL; - - __drm_atomic_helper_plane_duplicate_state(plane, &state->base); - - WARN_ON(state->base.plane != plane); - - state->pending = old_state->pending; - - return &state->base; -} - -static void mtk_drm_plane_destroy_state(struct drm_plane *plane, - struct drm_plane_state *state) -{ - __drm_atomic_helper_plane_destroy_state(state); - kfree(to_mtk_plane_state(state)); -} - -static const struct drm_plane_funcs mtk_plane_funcs = { - .update_plane = drm_atomic_helper_update_plane, - .disable_plane = drm_atomic_helper_disable_plane, - .destroy = drm_plane_cleanup, - .reset = mtk_plane_reset, - .atomic_duplicate_state = mtk_plane_duplicate_state, - .atomic_destroy_state = mtk_drm_plane_destroy_state, -}; - -static int mtk_plane_atomic_check(struct drm_plane *plane, - struct drm_plane_state *state) -{ - struct drm_framebuffer *fb = state->fb; - struct drm_crtc_state *crtc_state; - struct drm_rect clip = { 0, }; - - if (!fb) - return 0; - - if (!mtk_fb_get_gem_obj(fb)) { - DRM_DEBUG_KMS("buffer is null\n"); - return -EFAULT; - } - - if (!state->crtc) - return 0; - - crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc); - if (IS_ERR(crtc_state)) - return PTR_ERR(crtc_state); - - clip.x2 = crtc_state->mode.hdisplay; - clip.y2 = crtc_state->mode.vdisplay; - - return drm_plane_helper_check_state(state, &clip, - DRM_PLANE_HELPER_NO_SCALING, - DRM_PLANE_HELPER_NO_SCALING, - true, true); -} - -static void mtk_plane_atomic_update(struct drm_plane *plane, - struct drm_plane_state *old_state) -{ - struct mtk_plane_state *state = to_mtk_plane_state(plane->state); - struct drm_crtc *crtc = plane->state->crtc; - struct drm_framebuffer *fb = plane->state->fb; - struct drm_gem_object *gem; - struct mtk_drm_gem_obj *mtk_gem; - unsigned int pitch, format; - dma_addr_t addr; - - if (!crtc || WARN_ON(!fb)) - return; - - gem = mtk_fb_get_gem_obj(fb); - mtk_gem = to_mtk_gem_obj(gem); - addr = mtk_gem->dma_addr; - pitch = fb->pitches[0]; - format = fb->format->format; - - addr += (plane->state->src.x1 >> 16) * fb->format->cpp[0]; - addr += (plane->state->src.y1 >> 16) * pitch; - - state->pending.enable = true; - state->pending.pitch = pitch; - state->pending.format = format; - state->pending.addr = addr; - state->pending.x = plane->state->dst.x1; - state->pending.y = plane->state->dst.y1; - state->pending.width = drm_rect_width(&plane->state->dst); - state->pending.height = drm_rect_height(&plane->state->dst); - wmb(); /* Make sure the above parameters are set before update */ - state->pending.dirty = true; -} - -static void mtk_plane_atomic_disable(struct drm_plane *plane, - struct drm_plane_state *old_state) -{ - struct mtk_plane_state *state = to_mtk_plane_state(plane->state); - - state->pending.enable = false; - wmb(); /* Make sure the above parameter is set before update */ - state->pending.dirty = true; -} - -static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = { - .atomic_check = mtk_plane_atomic_check, - .atomic_update = mtk_plane_atomic_update, - .atomic_disable = mtk_plane_atomic_disable, -}; - -int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane, - unsigned long possible_crtcs, enum drm_plane_type type) -{ - int err; - - err = drm_universal_plane_init(dev, plane, possible_crtcs, - &mtk_plane_funcs, formats, - ARRAY_SIZE(formats), type, NULL); - if (err) { - DRM_ERROR("failed to initialize plane\n"); - return err; - } - - drm_plane_helper_add(plane, &mtk_plane_helper_funcs); - - return 0; -} |