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We have three rotation methods supported by the SoCs with DSS: DMA, VRFB and TILER. DMA rotation works in theory on all DSS platforms, but in practice it's unusable due to the huge amount of memory bandwidth it uses, and has never really been used. VRFB is available on OMAP3, but is not supported by omapdrm, even though we have some code for it in the dispc driver. TILER is supported on OMAP4/OMAP5/DRA7/AM5 platforms, but has some driver bugs. To clean up the driver to help fixing the TILER issues, this patch drops the DMA and VRFB rotation support, leaving only TILER rotation. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
/*
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* linux/drivers/video/omap2/dss/dss_features.h
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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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#ifndef __OMAP2_DSS_FEATURES_H
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#define __OMAP2_DSS_FEATURES_H
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#define MAX_DSS_MANAGERS 4
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#define MAX_DSS_OVERLAYS 4
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#define MAX_DSS_LCD_MANAGERS 3
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#define MAX_NUM_DSI 2
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/* DSS has feature id */
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enum dss_feat_id {
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FEAT_LCDENABLEPOL,
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FEAT_LCDENABLESIGNAL,
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FEAT_PCKFREEENABLE,
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FEAT_FUNCGATED,
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FEAT_MGR_LCD2,
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FEAT_MGR_LCD3,
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FEAT_LINEBUFFERSPLIT,
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FEAT_ROWREPEATENABLE,
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FEAT_RESIZECONF,
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/* Independent core clk divider */
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FEAT_CORE_CLK_DIV,
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FEAT_LCD_CLK_SRC,
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/* DSI-PLL power command 0x3 is not working */
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FEAT_DSI_PLL_PWR_BUG,
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FEAT_DSI_DCS_CMD_CONFIG_VC,
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FEAT_DSI_VC_OCP_WIDTH,
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FEAT_DSI_REVERSE_TXCLKESC,
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FEAT_DSI_GNQ,
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FEAT_DPI_USES_VDDS_DSI,
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FEAT_HDMI_CTS_SWMODE,
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FEAT_HDMI_AUDIO_USE_MCLK,
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FEAT_HANDLE_UV_SEPARATE,
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FEAT_ATTR2,
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FEAT_VENC_REQUIRES_TV_DAC_CLK,
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FEAT_CPR,
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FEAT_PRELOAD,
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FEAT_FIR_COEF_V,
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FEAT_ALPHA_FIXED_ZORDER,
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FEAT_ALPHA_FREE_ZORDER,
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FEAT_FIFO_MERGE,
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/* An unknown HW bug causing the normal FIFO thresholds not to work */
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FEAT_OMAP3_DSI_FIFO_BUG,
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FEAT_BURST_2D,
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FEAT_DSI_PHY_DCC,
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FEAT_MFLAG,
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};
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/* DSS register field id */
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enum dss_feat_reg_field {
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FEAT_REG_FIRHINC,
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FEAT_REG_FIRVINC,
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FEAT_REG_FIFOHIGHTHRESHOLD,
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FEAT_REG_FIFOLOWTHRESHOLD,
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FEAT_REG_FIFOSIZE,
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FEAT_REG_HORIZONTALACCU,
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FEAT_REG_VERTICALACCU,
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FEAT_REG_DISPC_CLK_SWITCH,
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};
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enum dss_range_param {
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FEAT_PARAM_DSS_FCK,
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FEAT_PARAM_DSS_PCD,
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FEAT_PARAM_DSIPLL_LPDIV,
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FEAT_PARAM_DSI_FCK,
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FEAT_PARAM_DOWNSCALE,
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FEAT_PARAM_LINEWIDTH,
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};
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/* DSS Feature Functions */
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unsigned long dss_feat_get_param_min(enum dss_range_param param);
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unsigned long dss_feat_get_param_max(enum dss_range_param param);
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enum omap_overlay_caps dss_feat_get_overlay_caps(enum omap_plane_id plane);
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bool dss_feat_color_mode_supported(enum omap_plane_id plane,
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enum omap_color_mode color_mode);
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u32 dss_feat_get_buffer_size_unit(void); /* in bytes */
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u32 dss_feat_get_burst_size_unit(void); /* in bytes */
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bool dss_has_feature(enum dss_feat_id id);
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void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end);
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void dss_features_init(enum omapdss_version version);
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enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel);
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enum omap_dss_output_id dss_feat_get_supported_outputs(enum omap_channel channel);
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int dss_feat_get_num_mgrs(void);
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int dss_feat_get_num_ovls(void);
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enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane_id plane);
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#endif
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