2 * linux/drivers/video/omap2/dss/dss_features.h
4 * Copyright (C) 2010 Texas Instruments
5 * Author: Archit Taneja <archit@ti.com>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published by
9 * the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * You should have received a copy of the GNU General Public License along with
17 * this program. If not, see <http://www.gnu.org/licenses/>.
20 #ifndef __OMAP2_DSS_FEATURES_H
21 #define __OMAP2_DSS_FEATURES_H
23 #define MAX_DSS_MANAGERS 3
24 #define MAX_DSS_OVERLAYS 3
25 #define MAX_DSS_LCD_MANAGERS 2
27 /* DSS has feature id */
29 FEAT_GLOBAL_ALPHA = 1 << 0,
30 FEAT_GLOBAL_ALPHA_VID1 = 1 << 1,
31 FEAT_PRE_MULT_ALPHA = 1 << 2,
32 FEAT_LCDENABLEPOL = 1 << 3,
33 FEAT_LCDENABLESIGNAL = 1 << 4,
34 FEAT_PCKFREEENABLE = 1 << 5,
35 FEAT_FUNCGATED = 1 << 6,
36 FEAT_MGR_LCD2 = 1 << 7,
37 FEAT_LINEBUFFERSPLIT = 1 << 8,
38 FEAT_ROWREPEATENABLE = 1 << 9,
39 FEAT_RESIZECONF = 1 << 10,
40 /* Independent core clk divider */
41 FEAT_CORE_CLK_DIV = 1 << 11,
42 FEAT_LCD_CLK_SRC = 1 << 12,
45 /* DSS register field id */
46 enum dss_feat_reg_field {
49 FEAT_REG_FIFOHIGHTHRESHOLD,
50 FEAT_REG_FIFOLOWTHRESHOLD,
52 FEAT_REG_HORIZONTALACCU,
53 FEAT_REG_VERTICALACCU,
54 FEAT_REG_DISPC_CLK_SWITCH,
57 FEAT_REG_DSIPLL_REGM_DISPC,
58 FEAT_REG_DSIPLL_REGM_DSI,
61 enum dss_range_param {
63 FEAT_PARAM_DSIPLL_REGN,
64 FEAT_PARAM_DSIPLL_REGM,
65 FEAT_PARAM_DSIPLL_REGM_DISPC,
66 FEAT_PARAM_DSIPLL_REGM_DSI,
67 FEAT_PARAM_DSIPLL_FINT,
68 FEAT_PARAM_DSIPLL_LPDIV,
71 /* DSS Feature Functions */
72 int dss_feat_get_num_mgrs(void);
73 int dss_feat_get_num_ovls(void);
74 unsigned long dss_feat_get_param_min(enum dss_range_param param);
75 unsigned long dss_feat_get_param_max(enum dss_range_param param);
76 enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel);
77 enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane);
78 bool dss_feat_color_mode_supported(enum omap_plane plane,
79 enum omap_color_mode color_mode);
80 const char *dss_feat_get_clk_source_name(enum dss_clk_source id);
82 bool dss_has_feature(enum dss_feat_id id);
83 void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end);
84 void dss_features_init(void);