779 lines
20 KiB
C
779 lines
20 KiB
C
/*
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* Copyright © 2010-2011 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Jim Liu <jim.liu@intel.com>
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* Jackie Li<yaodong.li@intel.com>
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*/
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#include "mdfld_dsi_dbi_dpu.h"
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#include "mdfld_dsi_dbi.h"
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/*
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* NOTE: all mdlfd_x_damage funcs should be called by holding dpu_update_lock
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*/
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static int mdfld_cursor_damage(struct mdfld_dbi_dpu_info *dpu_info,
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mdfld_plane_t plane,
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struct psb_drm_dpu_rect *damaged_rect)
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{
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int x, y;
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int new_x, new_y;
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struct psb_drm_dpu_rect *rect;
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struct psb_drm_dpu_rect *pipe_rect;
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int cursor_size;
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struct mdfld_cursor_info *cursor;
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mdfld_plane_t fb_plane;
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if (plane == MDFLD_CURSORA) {
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cursor = &dpu_info->cursors[0];
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x = dpu_info->cursors[0].x;
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y = dpu_info->cursors[0].y;
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cursor_size = dpu_info->cursors[0].size;
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pipe_rect = &dpu_info->damage_pipea;
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fb_plane = MDFLD_PLANEA;
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} else {
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cursor = &dpu_info->cursors[1];
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x = dpu_info->cursors[1].x;
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y = dpu_info->cursors[1].y;
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cursor_size = dpu_info->cursors[1].size;
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pipe_rect = &dpu_info->damage_pipec;
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fb_plane = MDFLD_PLANEC;
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}
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new_x = damaged_rect->x;
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new_y = damaged_rect->y;
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if (x == new_x && y == new_y)
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return 0;
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rect = &dpu_info->damaged_rects[plane];
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/* Move to right */
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if (new_x >= x) {
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if (new_y > y) {
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rect->x = x;
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rect->y = y;
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rect->width = (new_x + cursor_size) - x;
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rect->height = (new_y + cursor_size) - y;
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goto cursor_out;
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} else {
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rect->x = x;
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rect->y = new_y;
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rect->width = (new_x + cursor_size) - x;
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rect->height = (y - new_y);
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goto cursor_out;
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}
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} else {
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if (new_y > y) {
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rect->x = new_x;
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rect->y = y;
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rect->width = (x + cursor_size) - new_x;
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rect->height = new_y - y;
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goto cursor_out;
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} else {
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rect->x = new_x;
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rect->y = new_y;
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rect->width = (x + cursor_size) - new_x;
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rect->height = (y + cursor_size) - new_y;
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}
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}
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cursor_out:
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if (new_x < 0)
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cursor->x = 0;
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else if (new_x > 864)
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cursor->x = 864;
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else
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cursor->x = new_x;
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if (new_y < 0)
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cursor->y = 0;
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else if (new_y > 480)
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cursor->y = 480;
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else
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cursor->y = new_y;
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/*
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* FIXME: this is a workaround for cursor plane update,
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* remove it later!
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*/
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rect->x = 0;
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rect->y = 0;
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rect->width = 864;
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rect->height = 480;
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mdfld_check_boundary(dpu_info, rect);
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mdfld_dpu_region_extent(pipe_rect, rect);
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/* Update pending status of dpu_info */
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dpu_info->pending |= (1 << plane);
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/* Update fb panel as well */
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dpu_info->pending |= (1 << fb_plane);
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return 0;
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}
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static int mdfld_fb_damage(struct mdfld_dbi_dpu_info *dpu_info,
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mdfld_plane_t plane,
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struct psb_drm_dpu_rect *damaged_rect)
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{
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struct psb_drm_dpu_rect *rect;
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if (plane == MDFLD_PLANEA)
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rect = &dpu_info->damage_pipea;
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else
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rect = &dpu_info->damage_pipec;
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mdfld_check_boundary(dpu_info, damaged_rect);
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/* Add fb damage area to this pipe */
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mdfld_dpu_region_extent(rect, damaged_rect);
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/* Update pending status of dpu_info */
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dpu_info->pending |= (1 << plane);
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return 0;
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}
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/* Do nothing here, right now */
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static int mdfld_overlay_damage(struct mdfld_dbi_dpu_info *dpu_info,
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mdfld_plane_t plane,
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struct psb_drm_dpu_rect *damaged_rect)
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{
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return 0;
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}
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int mdfld_dbi_dpu_report_damage(struct drm_device *dev,
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mdfld_plane_t plane,
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struct psb_drm_dpu_rect *rect)
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{
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struct drm_psb_private *dev_priv = dev->dev_private;
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struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
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int ret = 0;
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/* DPU not in use, no damage reporting needed */
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if (dpu_info == NULL)
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return 0;
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spin_lock(&dpu_info->dpu_update_lock);
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switch (plane) {
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case MDFLD_PLANEA:
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case MDFLD_PLANEC:
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mdfld_fb_damage(dpu_info, plane, rect);
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break;
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case MDFLD_CURSORA:
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case MDFLD_CURSORC:
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mdfld_cursor_damage(dpu_info, plane, rect);
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break;
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case MDFLD_OVERLAYA:
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case MDFLD_OVERLAYC:
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mdfld_overlay_damage(dpu_info, plane, rect);
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break;
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default:
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DRM_ERROR("Invalid plane type %d\n", plane);
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ret = -EINVAL;
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}
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spin_unlock(&dpu_info->dpu_update_lock);
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return ret;
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}
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int mdfld_dbi_dpu_report_fullscreen_damage(struct drm_device *dev)
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{
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struct drm_psb_private *dev_priv;
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struct mdfld_dbi_dpu_info *dpu_info;
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struct mdfld_dsi_config *dsi_config;
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struct psb_drm_dpu_rect rect;
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int i;
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if (!dev) {
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DRM_ERROR("Invalid parameter\n");
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return -EINVAL;
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}
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dev_priv = dev->dev_private;
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dpu_info = dev_priv->dbi_dpu_info;
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/* This is fine - we may be in non DPU mode */
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if (!dpu_info)
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return -EINVAL;
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for (i = 0; i < dpu_info->dbi_output_num; i++) {
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dsi_config = dev_priv->dsi_configs[i];
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if (dsi_config) {
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rect.x = rect.y = 0;
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rect.width = dsi_config->fixed_mode->hdisplay;
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rect.height = dsi_config->fixed_mode->vdisplay;
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mdfld_dbi_dpu_report_damage(dev,
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i ? (MDFLD_PLANEC) : (MDFLD_PLANEA),
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&rect);
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}
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}
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/* Exit DSR state */
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mdfld_dpu_exit_dsr(dev);
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return 0;
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}
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int mdfld_dsi_dbi_dsr_off(struct drm_device *dev,
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struct psb_drm_dpu_rect *rect)
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{
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struct drm_psb_private *dev_priv = dev->dev_private;
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struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
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mdfld_dbi_dpu_report_damage(dev, MDFLD_PLANEA, rect);
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/* If dual display mode */
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if (dpu_info->dbi_output_num == 2)
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mdfld_dbi_dpu_report_damage(dev, MDFLD_PLANEC, rect);
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/* Force dsi to exit DSR mode */
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mdfld_dpu_exit_dsr(dev);
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return 0;
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}
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static void mdfld_dpu_cursor_plane_flush(struct mdfld_dbi_dpu_info *dpu_info,
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mdfld_plane_t plane)
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{
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struct drm_device *dev = dpu_info->dev;
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u32 curpos_reg = CURAPOS;
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u32 curbase_reg = CURABASE;
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u32 curcntr_reg = CURACNTR;
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struct mdfld_cursor_info *cursor = &dpu_info->cursors[0];
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if (plane == MDFLD_CURSORC) {
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curpos_reg = CURCPOS;
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curbase_reg = CURCBASE;
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curcntr_reg = CURCCNTR;
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cursor = &dpu_info->cursors[1];
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}
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REG_WRITE(curcntr_reg, REG_READ(curcntr_reg));
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REG_WRITE(curpos_reg,
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(((cursor->x & CURSOR_POS_MASK) << CURSOR_X_SHIFT) |
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((cursor->y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT)));
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REG_WRITE(curbase_reg, REG_READ(curbase_reg));
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}
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static void mdfld_dpu_fb_plane_flush(struct mdfld_dbi_dpu_info *dpu_info,
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mdfld_plane_t plane)
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{
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u32 pipesrc_reg = PIPEASRC;
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u32 dspsize_reg = DSPASIZE;
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u32 dspoff_reg = DSPALINOFF;
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u32 dspsurf_reg = DSPASURF;
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u32 dspstride_reg = DSPASTRIDE;
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u32 stride;
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struct psb_drm_dpu_rect *rect = &dpu_info->damage_pipea;
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struct drm_device *dev = dpu_info->dev;
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if (plane == MDFLD_PLANEC) {
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pipesrc_reg = PIPECSRC;
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dspsize_reg = DSPCSIZE;
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dspoff_reg = DSPCLINOFF;
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dspsurf_reg = DSPCSURF;
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dspstride_reg = DSPCSTRIDE;
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rect = &dpu_info->damage_pipec;
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}
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stride = REG_READ(dspstride_reg);
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/* FIXME: should I do the pipe src update here? */
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REG_WRITE(pipesrc_reg, ((rect->width - 1) << 16) | (rect->height - 1));
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/* Flush plane */
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REG_WRITE(dspsize_reg, ((rect->height - 1) << 16) | (rect->width - 1));
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REG_WRITE(dspoff_reg, ((rect->x * 4) + (rect->y * stride)));
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REG_WRITE(dspsurf_reg, REG_READ(dspsurf_reg));
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/*
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* TODO: wait for flip finished and restore the pipesrc reg,
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* or cursor will be show at a wrong position
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*/
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}
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static void mdfld_dpu_overlay_plane_flush(struct mdfld_dbi_dpu_info *dpu_info,
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mdfld_plane_t plane)
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{
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}
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/*
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* TODO: we are still in dbi normal mode now, we will try to use partial
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* mode later.
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*/
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static int mdfld_dbi_prepare_cb(struct mdfld_dsi_dbi_output *dbi_output,
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struct mdfld_dbi_dpu_info *dpu_info, int pipe)
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{
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u8 *cb_addr = (u8 *)dbi_output->dbi_cb_addr;
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u32 *index;
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struct psb_drm_dpu_rect *rect = pipe ?
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(&dpu_info->damage_pipec) : (&dpu_info->damage_pipea);
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/* FIXME: lock command buffer, this may lead to a deadlock,
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as we already hold the dpu_update_lock */
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if (!spin_trylock(&dbi_output->cb_lock)) {
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DRM_ERROR("lock command buffer failed, try again\n");
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return -EAGAIN;
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}
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index = &dbi_output->cb_write;
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if (*index) {
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DRM_ERROR("DBI command buffer unclean\n");
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return -EAGAIN;
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}
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/* Column address */
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*(cb_addr + ((*index)++)) = set_column_address;
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*(cb_addr + ((*index)++)) = rect->x >> 8;
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*(cb_addr + ((*index)++)) = rect->x;
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*(cb_addr + ((*index)++)) = (rect->x + rect->width - 1) >> 8;
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*(cb_addr + ((*index)++)) = (rect->x + rect->width - 1);
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*index = 8;
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/* Page address */
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*(cb_addr + ((*index)++)) = set_page_addr;
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*(cb_addr + ((*index)++)) = rect->y >> 8;
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*(cb_addr + ((*index)++)) = rect->y;
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*(cb_addr + ((*index)++)) = (rect->y + rect->height - 1) >> 8;
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*(cb_addr + ((*index)++)) = (rect->y + rect->height - 1);
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*index = 16;
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/*write memory*/
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*(cb_addr + ((*index)++)) = write_mem_start;
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return 0;
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}
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static int mdfld_dbi_flush_cb(struct mdfld_dsi_dbi_output *dbi_output, int pipe)
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{
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u32 cmd_phy = dbi_output->dbi_cb_phy;
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u32 *index = &dbi_output->cb_write;
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int reg_offset = pipe ? MIPIC_REG_OFFSET : 0;
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struct drm_device *dev = dbi_output->dev;
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if (*index == 0 || !dbi_output)
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return 0;
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REG_WRITE((MIPIA_CMD_LEN_REG + reg_offset), 0x010505);
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REG_WRITE((MIPIA_CMD_ADD_REG + reg_offset), cmd_phy | 3);
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*index = 0;
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/* FIXME: unlock command buffer */
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spin_unlock(&dbi_output->cb_lock);
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return 0;
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}
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static int mdfld_dpu_update_pipe(struct mdfld_dsi_dbi_output *dbi_output,
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struct mdfld_dbi_dpu_info *dpu_info, int pipe)
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{
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struct drm_device *dev = dbi_output->dev;
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struct drm_psb_private *dev_priv = dev->dev_private;
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mdfld_plane_t cursor_plane = MDFLD_CURSORA;
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mdfld_plane_t fb_plane = MDFLD_PLANEA;
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mdfld_plane_t overlay_plane = MDFLD_OVERLAYA;
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int ret = 0;
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u32 plane_mask = MDFLD_PIPEA_PLANE_MASK;
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/* Damaged rects on this pipe */
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if (pipe) {
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cursor_plane = MDFLD_CURSORC;
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fb_plane = MDFLD_PLANEC;
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overlay_plane = MDFLD_OVERLAYC;
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plane_mask = MDFLD_PIPEC_PLANE_MASK;
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}
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/*update cursor which assigned to @pipe*/
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if (dpu_info->pending & (1 << cursor_plane))
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mdfld_dpu_cursor_plane_flush(dpu_info, cursor_plane);
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/*update fb which assigned to @pipe*/
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if (dpu_info->pending & (1 << fb_plane))
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mdfld_dpu_fb_plane_flush(dpu_info, fb_plane);
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/* TODO: update overlay */
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if (dpu_info->pending & (1 << overlay_plane))
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mdfld_dpu_overlay_plane_flush(dpu_info, overlay_plane);
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/* Flush damage area to panel fb */
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if (dpu_info->pending & plane_mask) {
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ret = mdfld_dbi_prepare_cb(dbi_output, dpu_info, pipe);
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/*
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* TODO: remove b_dsr_enable later,
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* added it so that text console could boot smoothly
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*/
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/* Clean pending flags on this pipe */
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if (!ret && dev_priv->dsr_enable) {
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dpu_info->pending &= ~plane_mask;
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/* Reset overlay pipe damage rect */
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mdfld_dpu_init_damage(dpu_info, pipe);
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}
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}
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return ret;
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}
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static int mdfld_dpu_update_fb(struct drm_device *dev)
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{
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struct drm_crtc *crtc;
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struct psb_intel_crtc *psb_crtc;
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struct mdfld_dsi_dbi_output **dbi_output;
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struct drm_psb_private *dev_priv = dev->dev_private;
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struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
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bool pipe_updated[2];
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unsigned long irq_flags;
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u32 dpll_reg = MRST_DPLL_A;
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u32 dspcntr_reg = DSPACNTR;
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u32 pipeconf_reg = PIPEACONF;
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u32 dsplinoff_reg = DSPALINOFF;
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u32 dspsurf_reg = DSPASURF;
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u32 mipi_state_reg = MIPIA_INTR_STAT_REG;
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u32 reg_offset = 0;
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int pipe;
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int i;
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int ret;
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dbi_output = dpu_info->dbi_outputs;
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pipe_updated[0] = pipe_updated[1] = false;
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if (!gma_power_begin(dev, true))
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return -EAGAIN;
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/* Try to prevent any new damage reports */
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if (!spin_trylock_irqsave(&dpu_info->dpu_update_lock, irq_flags))
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return -EAGAIN;
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for (i = 0; i < dpu_info->dbi_output_num; i++) {
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crtc = dbi_output[i]->base.base.crtc;
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psb_crtc = (crtc) ? to_psb_intel_crtc(crtc) : NULL;
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pipe = dbi_output[i]->channel_num ? 2 : 0;
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if (pipe == 2) {
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dspcntr_reg = DSPCCNTR;
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pipeconf_reg = PIPECCONF;
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dsplinoff_reg = DSPCLINOFF;
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dspsurf_reg = DSPCSURF;
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reg_offset = MIPIC_REG_OFFSET;
|
|
}
|
|
|
|
if (!(REG_READ((MIPIA_GEN_FIFO_STAT_REG + reg_offset))
|
|
& (1 << 27)) ||
|
|
!(REG_READ(dpll_reg) & DPLL_VCO_ENABLE) ||
|
|
!(REG_READ(dspcntr_reg) & DISPLAY_PLANE_ENABLE) ||
|
|
!(REG_READ(pipeconf_reg) & DISPLAY_PLANE_ENABLE)) {
|
|
dev_err(dev->dev,
|
|
"DBI FIFO is busy, DSI %d state %x\n",
|
|
pipe,
|
|
REG_READ(mipi_state_reg + reg_offset));
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* If DBI output is in a exclusive state then the pipe
|
|
* change won't be updated
|
|
*/
|
|
if (dbi_output[i]->dbi_panel_on &&
|
|
!(dbi_output[i]->mode_flags & MODE_SETTING_ON_GOING) &&
|
|
!(psb_crtc &&
|
|
psb_crtc->mode_flags & MODE_SETTING_ON_GOING) &&
|
|
!(dbi_output[i]->mode_flags & MODE_SETTING_IN_DSR)) {
|
|
ret = mdfld_dpu_update_pipe(dbi_output[i],
|
|
dpu_info, dbi_output[i]->channel_num ? 2 : 0);
|
|
if (!ret)
|
|
pipe_updated[i] = true;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < dpu_info->dbi_output_num; i++)
|
|
if (pipe_updated[i])
|
|
mdfld_dbi_flush_cb(dbi_output[i],
|
|
dbi_output[i]->channel_num ? 2 : 0);
|
|
|
|
spin_unlock_irqrestore(&dpu_info->dpu_update_lock, irq_flags);
|
|
gma_power_end(dev);
|
|
return 0;
|
|
}
|
|
|
|
static int __mdfld_dbi_exit_dsr(struct mdfld_dsi_dbi_output *dbi_output,
|
|
int pipe)
|
|
{
|
|
struct drm_device *dev = dbi_output->dev;
|
|
struct drm_crtc *crtc = dbi_output->base.base.crtc;
|
|
struct psb_intel_crtc *psb_crtc = (crtc) ? to_psb_intel_crtc(crtc)
|
|
: NULL;
|
|
u32 reg_val;
|
|
u32 dpll_reg = MRST_DPLL_A;
|
|
u32 pipeconf_reg = PIPEACONF;
|
|
u32 dspcntr_reg = DSPACNTR;
|
|
u32 dspbase_reg = DSPABASE;
|
|
u32 dspsurf_reg = DSPASURF;
|
|
u32 reg_offset = 0;
|
|
|
|
if (!dbi_output)
|
|
return 0;
|
|
|
|
/* If mode setting on-going, back off */
|
|
if ((dbi_output->mode_flags & MODE_SETTING_ON_GOING) ||
|
|
(psb_crtc && psb_crtc->mode_flags & MODE_SETTING_ON_GOING))
|
|
return -EAGAIN;
|
|
|
|
if (pipe == 2) {
|
|
dpll_reg = MRST_DPLL_A;
|
|
pipeconf_reg = PIPECCONF;
|
|
dspcntr_reg = DSPCCNTR;
|
|
dspbase_reg = MDFLD_DSPCBASE;
|
|
dspsurf_reg = DSPCSURF;
|
|
|
|
reg_offset = MIPIC_REG_OFFSET;
|
|
}
|
|
|
|
if (!gma_power_begin(dev, true))
|
|
return -EAGAIN;
|
|
|
|
/* Enable DPLL */
|
|
reg_val = REG_READ(dpll_reg);
|
|
if (!(reg_val & DPLL_VCO_ENABLE)) {
|
|
|
|
if (reg_val & MDFLD_PWR_GATE_EN) {
|
|
reg_val &= ~MDFLD_PWR_GATE_EN;
|
|
REG_WRITE(dpll_reg, reg_val);
|
|
REG_READ(dpll_reg);
|
|
udelay(500);
|
|
}
|
|
|
|
reg_val |= DPLL_VCO_ENABLE;
|
|
REG_WRITE(dpll_reg, reg_val);
|
|
REG_READ(dpll_reg);
|
|
udelay(500);
|
|
|
|
/* FIXME: add timeout */
|
|
while (!(REG_READ(pipeconf_reg) & PIPECONF_DSIPLL_LOCK))
|
|
cpu_relax();
|
|
}
|
|
|
|
/* Enable pipe */
|
|
reg_val = REG_READ(pipeconf_reg);
|
|
if (!(reg_val & PIPEACONF_ENABLE)) {
|
|
reg_val |= PIPEACONF_ENABLE;
|
|
REG_WRITE(pipeconf_reg, reg_val);
|
|
REG_READ(pipeconf_reg);
|
|
udelay(500);
|
|
mdfldWaitForPipeEnable(dev, pipe);
|
|
}
|
|
|
|
/* Enable plane */
|
|
reg_val = REG_READ(dspcntr_reg);
|
|
if (!(reg_val & DISPLAY_PLANE_ENABLE)) {
|
|
reg_val |= DISPLAY_PLANE_ENABLE;
|
|
REG_WRITE(dspcntr_reg, reg_val);
|
|
REG_READ(dspcntr_reg);
|
|
udelay(500);
|
|
}
|
|
|
|
gma_power_end(dev);
|
|
|
|
/* Clean IN_DSR flag */
|
|
dbi_output->mode_flags &= ~MODE_SETTING_IN_DSR;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mdfld_dpu_exit_dsr(struct drm_device *dev)
|
|
{
|
|
struct mdfld_dsi_dbi_output **dbi_output;
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
|
|
int i;
|
|
int pipe;
|
|
|
|
dbi_output = dpu_info->dbi_outputs;
|
|
|
|
for (i = 0; i < dpu_info->dbi_output_num; i++) {
|
|
/* If this output is not in DSR mode, don't call exit dsr */
|
|
if (dbi_output[i]->mode_flags & MODE_SETTING_IN_DSR)
|
|
__mdfld_dbi_exit_dsr(dbi_output[i],
|
|
dbi_output[i]->channel_num ? 2 : 0);
|
|
}
|
|
|
|
/* Enable TE interrupt */
|
|
for (i = 0; i < dpu_info->dbi_output_num; i++) {
|
|
/* If this output is not in DSR mode, don't call exit dsr */
|
|
pipe = dbi_output[i]->channel_num ? 2 : 0;
|
|
if (dbi_output[i]->dbi_panel_on && pipe) {
|
|
mdfld_disable_te(dev, 0);
|
|
mdfld_enable_te(dev, 2);
|
|
} else if (dbi_output[i]->dbi_panel_on && !pipe) {
|
|
mdfld_disable_te(dev, 2);
|
|
mdfld_enable_te(dev, 0);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int mdfld_dpu_enter_dsr(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
|
|
struct mdfld_dsi_dbi_output **dbi_output;
|
|
int i;
|
|
|
|
dbi_output = dpu_info->dbi_outputs;
|
|
|
|
for (i = 0; i < dpu_info->dbi_output_num; i++) {
|
|
/* If output is off or already in DSR state, don't re-enter */
|
|
if (dbi_output[i]->dbi_panel_on &&
|
|
!(dbi_output[i]->mode_flags & MODE_SETTING_IN_DSR)) {
|
|
mdfld_dsi_dbi_enter_dsr(dbi_output[i],
|
|
dbi_output[i]->channel_num ? 2 : 0);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mdfld_dbi_dpu_timer_func(unsigned long data)
|
|
{
|
|
struct drm_device *dev = (struct drm_device *)data;
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
|
|
struct timer_list *dpu_timer = &dpu_info->dpu_timer;
|
|
unsigned long flags;
|
|
|
|
if (dpu_info->pending) {
|
|
dpu_info->idle_count = 0;
|
|
/* Update panel fb with damaged area */
|
|
mdfld_dpu_update_fb(dev);
|
|
} else {
|
|
dpu_info->idle_count++;
|
|
}
|
|
|
|
if (dpu_info->idle_count >= MDFLD_MAX_IDLE_COUNT) {
|
|
mdfld_dpu_enter_dsr(dev);
|
|
/* Stop timer by return */
|
|
return;
|
|
}
|
|
|
|
spin_lock_irqsave(&dpu_info->dpu_timer_lock, flags);
|
|
if (!timer_pending(dpu_timer)) {
|
|
dpu_timer->expires = jiffies + MDFLD_DSR_DELAY;
|
|
add_timer(dpu_timer);
|
|
}
|
|
spin_unlock_irqrestore(&dpu_info->dpu_timer_lock, flags);
|
|
}
|
|
|
|
void mdfld_dpu_update_panel(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
|
|
|
|
if (dpu_info->pending) {
|
|
dpu_info->idle_count = 0;
|
|
|
|
/*update panel fb with damaged area*/
|
|
mdfld_dpu_update_fb(dev);
|
|
} else {
|
|
dpu_info->idle_count++;
|
|
}
|
|
|
|
if (dpu_info->idle_count >= MDFLD_MAX_IDLE_COUNT) {
|
|
/*enter dsr*/
|
|
mdfld_dpu_enter_dsr(dev);
|
|
}
|
|
}
|
|
|
|
static int mdfld_dbi_dpu_timer_init(struct drm_device *dev,
|
|
struct mdfld_dbi_dpu_info *dpu_info)
|
|
{
|
|
struct timer_list *dpu_timer = &dpu_info->dpu_timer;
|
|
unsigned long flags;
|
|
|
|
spin_lock_init(&dpu_info->dpu_timer_lock);
|
|
spin_lock_irqsave(&dpu_info->dpu_timer_lock, flags);
|
|
|
|
init_timer(dpu_timer);
|
|
|
|
dpu_timer->data = (unsigned long)dev;
|
|
dpu_timer->function = mdfld_dbi_dpu_timer_func;
|
|
dpu_timer->expires = jiffies + MDFLD_DSR_DELAY;
|
|
|
|
spin_unlock_irqrestore(&dpu_info->dpu_timer_lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void mdfld_dbi_dpu_timer_start(struct mdfld_dbi_dpu_info *dpu_info)
|
|
{
|
|
struct timer_list *dpu_timer = &dpu_info->dpu_timer;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dpu_info->dpu_timer_lock, flags);
|
|
if (!timer_pending(dpu_timer)) {
|
|
dpu_timer->expires = jiffies + MDFLD_DSR_DELAY;
|
|
add_timer(dpu_timer);
|
|
}
|
|
spin_unlock_irqrestore(&dpu_info->dpu_timer_lock, flags);
|
|
}
|
|
|
|
int mdfld_dbi_dpu_init(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
|
|
|
|
if (!dpu_info || IS_ERR(dpu_info)) {
|
|
dpu_info = kzalloc(sizeof(struct mdfld_dbi_dpu_info),
|
|
GFP_KERNEL);
|
|
if (!dpu_info) {
|
|
DRM_ERROR("No memory\n");
|
|
return -ENOMEM;
|
|
}
|
|
dev_priv->dbi_dpu_info = dpu_info;
|
|
}
|
|
|
|
dpu_info->dev = dev;
|
|
|
|
dpu_info->cursors[0].size = MDFLD_CURSOR_SIZE;
|
|
dpu_info->cursors[1].size = MDFLD_CURSOR_SIZE;
|
|
|
|
/*init dpu_update_lock*/
|
|
spin_lock_init(&dpu_info->dpu_update_lock);
|
|
|
|
/*init dpu refresh timer*/
|
|
mdfld_dbi_dpu_timer_init(dev, dpu_info);
|
|
|
|
/*init pipe damage area*/
|
|
mdfld_dpu_init_damage(dpu_info, 0);
|
|
mdfld_dpu_init_damage(dpu_info, 2);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void mdfld_dbi_dpu_exit(struct drm_device *dev)
|
|
{
|
|
struct drm_psb_private *dev_priv = dev->dev_private;
|
|
struct mdfld_dbi_dpu_info *dpu_info = dev_priv->dbi_dpu_info;
|
|
|
|
if (!dpu_info)
|
|
return;
|
|
|
|
del_timer_sync(&dpu_info->dpu_timer);
|
|
kfree(dpu_info);
|
|
dev_priv->dbi_dpu_info = NULL;
|
|
}
|
|
|
|
|