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- /*
- * Copyright (C) 2013 Red Hat
- * Author: Rob Clark <robdclark@gmail.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 "mdp4_kms.h"
- struct mdp4_plane {
- struct drm_plane base;
- const char *name;
- enum mpd4_pipe pipe;
- uint32_t nformats;
- uint32_t formats[32];
- bool enabled;
- };
- #define to_mdp4_plane(x) container_of(x, struct mdp4_plane, base)
- static struct mdp4_kms *get_kms(struct drm_plane *plane)
- {
- struct msm_drm_private *priv = plane->dev->dev_private;
- return to_mdp4_kms(priv->kms);
- }
- static int mdp4_plane_update(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,
- uint32_t src_x, uint32_t src_y,
- uint32_t src_w, uint32_t src_h)
- {
- struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
- mdp4_plane->enabled = true;
- if (plane->fb)
- drm_framebuffer_unreference(plane->fb);
- drm_framebuffer_reference(fb);
- return mdp4_plane_mode_set(plane, crtc, fb,
- crtc_x, crtc_y, crtc_w, crtc_h,
- src_x, src_y, src_w, src_h);
- }
- static int mdp4_plane_disable(struct drm_plane *plane)
- {
- struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
- DBG("%s: TODO", mdp4_plane->name); // XXX
- return 0;
- }
- static void mdp4_plane_destroy(struct drm_plane *plane)
- {
- struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
- mdp4_plane_disable(plane);
- drm_plane_cleanup(plane);
- kfree(mdp4_plane);
- }
- /* helper to install properties which are common to planes and crtcs */
- void mdp4_plane_install_properties(struct drm_plane *plane,
- struct drm_mode_object *obj)
- {
- // XXX
- }
- int mdp4_plane_set_property(struct drm_plane *plane,
- struct drm_property *property, uint64_t val)
- {
- // XXX
- return -EINVAL;
- }
- static const struct drm_plane_funcs mdp4_plane_funcs = {
- .update_plane = mdp4_plane_update,
- .disable_plane = mdp4_plane_disable,
- .destroy = mdp4_plane_destroy,
- .set_property = mdp4_plane_set_property,
- };
- void mdp4_plane_set_scanout(struct drm_plane *plane,
- struct drm_framebuffer *fb)
- {
- struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
- struct mdp4_kms *mdp4_kms = get_kms(plane);
- enum mpd4_pipe pipe = mdp4_plane->pipe;
- uint32_t iova;
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_A(pipe),
- MDP4_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) |
- MDP4_PIPE_SRC_STRIDE_A_P1(fb->pitches[1]));
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_B(pipe),
- MDP4_PIPE_SRC_STRIDE_B_P2(fb->pitches[2]) |
- MDP4_PIPE_SRC_STRIDE_B_P3(fb->pitches[3]));
- msm_gem_get_iova(msm_framebuffer_bo(fb, 0), mdp4_kms->id, &iova);
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP0_BASE(pipe), iova);
- plane->fb = fb;
- }
- #define MDP4_VG_PHASE_STEP_DEFAULT 0x20000000
- int mdp4_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,
- uint32_t src_x, uint32_t src_y,
- uint32_t src_w, uint32_t src_h)
- {
- struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
- struct mdp4_kms *mdp4_kms = get_kms(plane);
- enum mpd4_pipe pipe = mdp4_plane->pipe;
- const struct mdp4_format *format;
- uint32_t op_mode = 0;
- uint32_t phasex_step = MDP4_VG_PHASE_STEP_DEFAULT;
- uint32_t phasey_step = MDP4_VG_PHASE_STEP_DEFAULT;
- /* src values are in Q16 fixed point, convert to integer: */
- src_x = src_x >> 16;
- src_y = src_y >> 16;
- src_w = src_w >> 16;
- src_h = src_h >> 16;
- if (src_w != crtc_w) {
- op_mode |= MDP4_PIPE_OP_MODE_SCALEX_EN;
- /* TODO calc phasex_step */
- }
- if (src_h != crtc_h) {
- op_mode |= MDP4_PIPE_OP_MODE_SCALEY_EN;
- /* TODO calc phasey_step */
- }
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_SIZE(pipe),
- MDP4_PIPE_SRC_SIZE_WIDTH(src_w) |
- MDP4_PIPE_SRC_SIZE_HEIGHT(src_h));
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_XY(pipe),
- MDP4_PIPE_SRC_XY_X(src_x) |
- MDP4_PIPE_SRC_XY_Y(src_y));
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_DST_SIZE(pipe),
- MDP4_PIPE_DST_SIZE_WIDTH(crtc_w) |
- MDP4_PIPE_DST_SIZE_HEIGHT(crtc_h));
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_DST_XY(pipe),
- MDP4_PIPE_SRC_XY_X(crtc_x) |
- MDP4_PIPE_SRC_XY_Y(crtc_y));
- mdp4_plane_set_scanout(plane, fb);
- format = to_mdp4_format(msm_framebuffer_format(fb));
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_FORMAT(pipe),
- MDP4_PIPE_SRC_FORMAT_A_BPC(format->bpc_a) |
- MDP4_PIPE_SRC_FORMAT_R_BPC(format->bpc_r) |
- MDP4_PIPE_SRC_FORMAT_G_BPC(format->bpc_g) |
- MDP4_PIPE_SRC_FORMAT_B_BPC(format->bpc_b) |
- COND(format->alpha_enable, MDP4_PIPE_SRC_FORMAT_ALPHA_ENABLE) |
- MDP4_PIPE_SRC_FORMAT_CPP(format->cpp - 1) |
- MDP4_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) |
- COND(format->unpack_tight, MDP4_PIPE_SRC_FORMAT_UNPACK_TIGHT));
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_UNPACK(pipe),
- MDP4_PIPE_SRC_UNPACK_ELEM0(format->unpack[0]) |
- MDP4_PIPE_SRC_UNPACK_ELEM1(format->unpack[1]) |
- MDP4_PIPE_SRC_UNPACK_ELEM2(format->unpack[2]) |
- MDP4_PIPE_SRC_UNPACK_ELEM3(format->unpack[3]));
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_OP_MODE(pipe), op_mode);
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEX_STEP(pipe), phasex_step);
- mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEY_STEP(pipe), phasey_step);
- plane->crtc = crtc;
- return 0;
- }
- static const char *pipe_names[] = {
- "VG1", "VG2",
- "RGB1", "RGB2", "RGB3",
- "VG3", "VG4",
- };
- enum mpd4_pipe mdp4_plane_pipe(struct drm_plane *plane)
- {
- struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
- return mdp4_plane->pipe;
- }
- /* initialize plane */
- struct drm_plane *mdp4_plane_init(struct drm_device *dev,
- enum mpd4_pipe pipe_id, bool private_plane)
- {
- struct msm_drm_private *priv = dev->dev_private;
- struct drm_plane *plane = NULL;
- struct mdp4_plane *mdp4_plane;
- int ret;
- mdp4_plane = kzalloc(sizeof(*mdp4_plane), GFP_KERNEL);
- if (!mdp4_plane) {
- ret = -ENOMEM;
- goto fail;
- }
- plane = &mdp4_plane->base;
- mdp4_plane->pipe = pipe_id;
- mdp4_plane->name = pipe_names[pipe_id];
- drm_plane_init(dev, plane, (1 << priv->num_crtcs) - 1, &mdp4_plane_funcs,
- mdp4_plane->formats, mdp4_plane->nformats, private_plane);
- mdp4_plane_install_properties(plane, &plane->base);
- return plane;
- fail:
- if (plane)
- mdp4_plane_destroy(plane);
- return ERR_PTR(ret);
- }
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