Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Tomi Valkeinen | 721 | 99.45% | 1 | 33.33% |
Kees Cook | 3 | 0.41% | 1 | 33.33% |
Peter Ujfalusi | 1 | 0.14% | 1 | 33.33% |
Total | 725 | 3 |
/* * linux/drivers/video/omap2/dss/overlay.c * * Copyright (C) 2009 Nokia Corporation * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> * * Some code and ideas taken from drivers/video/omap/ driver * by Imre Deak. * * 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/>. */ #define DSS_SUBSYS_NAME "OVERLAY" #include <linux/kernel.h> #include <linux/module.h> #include <linux/err.h> #include <linux/sysfs.h> #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/slab.h> #include <video/omapfb_dss.h> #include "dss.h" #include "dss_features.h" static int num_overlays; static struct omap_overlay *overlays; int omap_dss_get_num_overlays(void) { return num_overlays; } EXPORT_SYMBOL(omap_dss_get_num_overlays); struct omap_overlay *omap_dss_get_overlay(int num) { if (num >= num_overlays) return NULL; return &overlays[num]; } EXPORT_SYMBOL(omap_dss_get_overlay); void dss_init_overlays(struct platform_device *pdev) { int i, r; num_overlays = dss_feat_get_num_ovls(); overlays = kcalloc(num_overlays, sizeof(struct omap_overlay), GFP_KERNEL); BUG_ON(overlays == NULL); for (i = 0; i < num_overlays; ++i) { struct omap_overlay *ovl = &overlays[i]; switch (i) { case 0: ovl->name = "gfx"; ovl->id = OMAP_DSS_GFX; break; case 1: ovl->name = "vid1"; ovl->id = OMAP_DSS_VIDEO1; break; case 2: ovl->name = "vid2"; ovl->id = OMAP_DSS_VIDEO2; break; case 3: ovl->name = "vid3"; ovl->id = OMAP_DSS_VIDEO3; break; } ovl->caps = dss_feat_get_overlay_caps(ovl->id); ovl->supported_modes = dss_feat_get_supported_color_modes(ovl->id); r = dss_overlay_kobj_init(ovl, pdev); if (r) DSSERR("failed to create sysfs file\n"); } } void dss_uninit_overlays(struct platform_device *pdev) { int i; for (i = 0; i < num_overlays; ++i) { struct omap_overlay *ovl = &overlays[i]; dss_overlay_kobj_uninit(ovl); } kfree(overlays); overlays = NULL; num_overlays = 0; } int dss_ovl_simple_check(struct omap_overlay *ovl, const struct omap_overlay_info *info) { if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { if (info->out_width != 0 && info->width != info->out_width) { DSSERR("check_overlay: overlay %d doesn't support " "scaling\n", ovl->id); return -EINVAL; } if (info->out_height != 0 && info->height != info->out_height) { DSSERR("check_overlay: overlay %d doesn't support " "scaling\n", ovl->id); return -EINVAL; } } if ((ovl->supported_modes & info->color_mode) == 0) { DSSERR("check_overlay: overlay %d doesn't support mode %d\n", ovl->id, info->color_mode); return -EINVAL; } if (info->zorder >= omap_dss_get_num_overlays()) { DSSERR("check_overlay: zorder %d too high\n", info->zorder); return -EINVAL; } if (dss_feat_rotation_type_supported(info->rotation_type) == 0) { DSSERR("check_overlay: rotation type %d not supported\n", info->rotation_type); return -EINVAL; } return 0; } int dss_ovl_check(struct omap_overlay *ovl, struct omap_overlay_info *info, const struct omap_video_timings *mgr_timings) { u16 outw, outh; u16 dw, dh; dw = mgr_timings->x_res; dh = mgr_timings->y_res; if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { outw = info->width; outh = info->height; } else { if (info->out_width == 0) outw = info->width; else outw = info->out_width; if (info->out_height == 0) outh = info->height; else outh = info->out_height; } if (dw < info->pos_x + outw) { DSSERR("overlay %d horizontally not inside the display area " "(%d + %d >= %d)\n", ovl->id, info->pos_x, outw, dw); return -EINVAL; } if (dh < info->pos_y + outh) { DSSERR("overlay %d vertically not inside the display area " "(%d + %d >= %d)\n", ovl->id, info->pos_y, outh, dh); return -EINVAL; } return 0; } /* * Checks if replication logic should be used. Only use when overlay is in * RGB12U or RGB16 mode, and video port width interface is 18bpp or 24bpp */ bool dss_ovl_use_replication(struct dss_lcd_mgr_config config, enum omap_color_mode mode) { if (mode != OMAP_DSS_COLOR_RGB12U && mode != OMAP_DSS_COLOR_RGB16) return false; return config.video_port_width > 16; }
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