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819d807c59
The maximum supported frequency for DSS has increased from 173 to 186 Mhz on OMAP4. Introduce a dss feature function to get the max_fck to replace DISPC_MAX_FCK macro. Signed-off-by: Archit Taneja <archit@ti.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
289 lines
8.1 KiB
C
289 lines
8.1 KiB
C
/*
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* linux/drivers/video/omap2/dss/dss_features.c
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*
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* Copyright (C) 2010 Texas Instruments
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* Author: Archit Taneja <archit@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/err.h>
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#include <linux/slab.h>
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#include <plat/display.h>
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#include <plat/cpu.h>
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#include "dss_features.h"
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/* Defines a generic omap register field */
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struct dss_reg_field {
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enum dss_feat_reg_field id;
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u8 start, end;
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};
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struct omap_dss_features {
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const struct dss_reg_field *reg_fields;
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const int num_reg_fields;
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const u32 has_feature;
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const int num_mgrs;
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const int num_ovls;
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const unsigned long max_dss_fck;
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const enum omap_display_type *supported_displays;
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const enum omap_color_mode *supported_color_modes;
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};
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/* This struct is assigned to one of the below during initialization */
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static struct omap_dss_features *omap_current_dss_features;
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static const struct dss_reg_field omap2_dss_reg_fields[] = {
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{ FEAT_REG_FIRHINC, 11, 0 },
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{ FEAT_REG_FIRVINC, 27, 16 },
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{ FEAT_REG_FIFOLOWTHRESHOLD, 8, 0 },
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{ FEAT_REG_FIFOHIGHTHRESHOLD, 24, 16 },
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{ FEAT_REG_FIFOSIZE, 8, 0 },
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{ FEAT_REG_HORIZONTALACCU, 9, 0 },
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{ FEAT_REG_VERTICALACCU, 25, 16 },
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};
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static const struct dss_reg_field omap3_dss_reg_fields[] = {
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{ FEAT_REG_FIRHINC, 12, 0 },
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{ FEAT_REG_FIRVINC, 28, 16 },
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{ FEAT_REG_FIFOLOWTHRESHOLD, 11, 0 },
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{ FEAT_REG_FIFOHIGHTHRESHOLD, 27, 16 },
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{ FEAT_REG_FIFOSIZE, 10, 0 },
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{ FEAT_REG_HORIZONTALACCU, 9, 0 },
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{ FEAT_REG_VERTICALACCU, 25, 16 },
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};
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static const struct dss_reg_field omap4_dss_reg_fields[] = {
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{ FEAT_REG_FIRHINC, 12, 0 },
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{ FEAT_REG_FIRVINC, 28, 16 },
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{ FEAT_REG_FIFOLOWTHRESHOLD, 15, 0 },
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{ FEAT_REG_FIFOHIGHTHRESHOLD, 31, 16 },
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{ FEAT_REG_FIFOSIZE, 15, 0 },
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{ FEAT_REG_HORIZONTALACCU, 10, 0 },
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{ FEAT_REG_VERTICALACCU, 26, 16 },
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};
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static const enum omap_display_type omap2_dss_supported_displays[] = {
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/* OMAP_DSS_CHANNEL_LCD */
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OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI,
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/* OMAP_DSS_CHANNEL_DIGIT */
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OMAP_DISPLAY_TYPE_VENC,
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};
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static const enum omap_display_type omap3430_dss_supported_displays[] = {
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/* OMAP_DSS_CHANNEL_LCD */
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OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
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OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI,
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/* OMAP_DSS_CHANNEL_DIGIT */
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OMAP_DISPLAY_TYPE_VENC,
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};
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static const enum omap_display_type omap3630_dss_supported_displays[] = {
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/* OMAP_DSS_CHANNEL_LCD */
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OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
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OMAP_DISPLAY_TYPE_DSI,
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/* OMAP_DSS_CHANNEL_DIGIT */
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OMAP_DISPLAY_TYPE_VENC,
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};
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static const enum omap_display_type omap4_dss_supported_displays[] = {
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/* OMAP_DSS_CHANNEL_LCD */
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OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI,
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/* OMAP_DSS_CHANNEL_DIGIT */
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OMAP_DISPLAY_TYPE_VENC,
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/* OMAP_DSS_CHANNEL_LCD2 */
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OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
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OMAP_DISPLAY_TYPE_DSI,
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};
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static const enum omap_color_mode omap2_dss_supported_color_modes[] = {
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/* OMAP_DSS_GFX */
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OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 |
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OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 |
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OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 |
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OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P,
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/* OMAP_DSS_VIDEO1 */
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OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
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OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 |
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OMAP_DSS_COLOR_UYVY,
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/* OMAP_DSS_VIDEO2 */
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OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
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OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 |
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OMAP_DSS_COLOR_UYVY,
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};
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static const enum omap_color_mode omap3_dss_supported_color_modes[] = {
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/* OMAP_DSS_GFX */
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OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 |
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OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 |
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OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
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OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
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OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 |
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OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32,
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/* OMAP_DSS_VIDEO1 */
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OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P |
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OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 |
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OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_UYVY,
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/* OMAP_DSS_VIDEO2 */
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OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
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OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
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OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 |
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OMAP_DSS_COLOR_UYVY | OMAP_DSS_COLOR_ARGB32 |
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OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32,
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};
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/* OMAP2 DSS Features */
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static struct omap_dss_features omap2_dss_features = {
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.reg_fields = omap2_dss_reg_fields,
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.num_reg_fields = ARRAY_SIZE(omap2_dss_reg_fields),
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.has_feature =
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FEAT_LCDENABLEPOL | FEAT_LCDENABLESIGNAL |
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FEAT_PCKFREEENABLE | FEAT_FUNCGATED |
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FEAT_ROWREPEATENABLE | FEAT_RESIZECONF,
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.num_mgrs = 2,
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.num_ovls = 3,
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.max_dss_fck = 173000000,
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.supported_displays = omap2_dss_supported_displays,
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.supported_color_modes = omap2_dss_supported_color_modes,
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};
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/* OMAP3 DSS Features */
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static struct omap_dss_features omap3430_dss_features = {
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.reg_fields = omap3_dss_reg_fields,
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.num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields),
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.has_feature =
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FEAT_GLOBAL_ALPHA | FEAT_LCDENABLEPOL |
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FEAT_LCDENABLESIGNAL | FEAT_PCKFREEENABLE |
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FEAT_FUNCGATED | FEAT_ROWREPEATENABLE |
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FEAT_LINEBUFFERSPLIT | FEAT_RESIZECONF,
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.num_mgrs = 2,
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.num_ovls = 3,
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.max_dss_fck = 173000000,
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.supported_displays = omap3430_dss_supported_displays,
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.supported_color_modes = omap3_dss_supported_color_modes,
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};
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static struct omap_dss_features omap3630_dss_features = {
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.reg_fields = omap3_dss_reg_fields,
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.num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields),
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.has_feature =
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FEAT_GLOBAL_ALPHA | FEAT_LCDENABLEPOL |
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FEAT_LCDENABLESIGNAL | FEAT_PCKFREEENABLE |
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FEAT_PRE_MULT_ALPHA | FEAT_FUNCGATED |
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FEAT_ROWREPEATENABLE | FEAT_LINEBUFFERSPLIT |
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FEAT_RESIZECONF,
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.num_mgrs = 2,
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.num_ovls = 3,
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.max_dss_fck = 173000000,
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.supported_displays = omap3630_dss_supported_displays,
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.supported_color_modes = omap3_dss_supported_color_modes,
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};
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/* OMAP4 DSS Features */
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static struct omap_dss_features omap4_dss_features = {
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.reg_fields = omap4_dss_reg_fields,
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.num_reg_fields = ARRAY_SIZE(omap4_dss_reg_fields),
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.has_feature =
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FEAT_GLOBAL_ALPHA | FEAT_PRE_MULT_ALPHA |
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FEAT_MGR_LCD2 | FEAT_GLOBAL_ALPHA_VID1,
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.num_mgrs = 3,
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.num_ovls = 3,
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.max_dss_fck = 186000000,
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.supported_displays = omap4_dss_supported_displays,
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.supported_color_modes = omap3_dss_supported_color_modes,
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};
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/* Functions returning values related to a DSS feature */
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int dss_feat_get_num_mgrs(void)
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{
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return omap_current_dss_features->num_mgrs;
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}
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int dss_feat_get_num_ovls(void)
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{
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return omap_current_dss_features->num_ovls;
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}
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/* Max supported DSS FCK in Hz */
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unsigned long dss_feat_get_max_dss_fck(void)
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{
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return omap_current_dss_features->max_dss_fck;
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}
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enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel)
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{
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return omap_current_dss_features->supported_displays[channel];
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}
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enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane)
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{
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return omap_current_dss_features->supported_color_modes[plane];
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}
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bool dss_feat_color_mode_supported(enum omap_plane plane,
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enum omap_color_mode color_mode)
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{
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return omap_current_dss_features->supported_color_modes[plane] &
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color_mode;
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}
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/* DSS has_feature check */
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bool dss_has_feature(enum dss_feat_id id)
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{
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return omap_current_dss_features->has_feature & id;
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}
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void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end)
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{
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if (id >= omap_current_dss_features->num_reg_fields)
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BUG();
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*start = omap_current_dss_features->reg_fields[id].start;
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*end = omap_current_dss_features->reg_fields[id].end;
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}
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void dss_features_init(void)
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{
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if (cpu_is_omap24xx())
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omap_current_dss_features = &omap2_dss_features;
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else if (cpu_is_omap3630())
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omap_current_dss_features = &omap3630_dss_features;
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else if (cpu_is_omap34xx())
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omap_current_dss_features = &omap3430_dss_features;
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else
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omap_current_dss_features = &omap4_dss_features;
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}
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