path: root/drivers/video/omap2/dss/dss_features.c

/*
 * linux/drivers/video/omap2/dss/dss_features.c
 *
 * Copyright (C) 2010 Texas Instruments
 * Author: Archit Taneja <archit@ti.com>
 *
 * 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/>.
 */

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/err.h>
#include <linux/slab.h>

#include <video/omapdss.h>

#include "dss.h"
#include "dss_features.h"

/* Defines a generic omap register field */
struct dss_reg_field {
	u8 start, end;
};

struct dss_param_range {
	int min, max;
};

struct omap_dss_features {
	const struct dss_reg_field *reg_fields;
	const int num_reg_fields;

	const enum dss_feat_id *features;
	const int num_features;

	const int num_mgrs;
	const int num_ovls;
	const int num_wbs;
	const enum omap_display_type *supported_displays;
	const enum omap_dss_output_id *supported_outputs;
	const enum omap_color_mode *supported_color_modes;
	const enum omap_overlay_caps *overlay_caps;
	const char * const *clksrc_names;
	const struct dss_param_range *dss_params;

	const enum omap_dss_rotation_type supported_rotation_types;

	const u32 buffer_size_unit;
	const u32 burst_size_unit;
};

/* This struct is assigned to one of the below during initialization */
static const struct omap_dss_features *omap_current_dss_features;

static const struct dss_reg_field omap2_dss_reg_fields[] = {
	[FEAT_REG_FIRHINC]			= { 11, 0 },
	[FEAT_REG_FIRVINC]			= { 27, 16 },
	[FEAT_REG_FIFOLOWTHRESHOLD]		= { 8, 0 },
	[FEAT_REG_FIFOHIGHTHRESHOLD]		= { 24, 16 },
	[FEAT_REG_FIFOSIZE]			= { 8, 0 },
	[FEAT_REG_HORIZONTALACCU]		= { 9, 0 },
	[FEAT_REG_VERTICALACCU]			= { 25, 16 },
	[FEAT_REG_DISPC_CLK_SWITCH]		= { 0, 0 },
	[FEAT_REG_DSIPLL_REGN]			= { 0, 0 },
	[FEAT_REG_DSIPLL_REGM]			= { 0, 0 },
	[FEAT_REG_DSIPLL_REGM_DISPC]		= { 0, 0 },
	[FEAT_REG_DSIPLL_REGM_DSI]		= { 0, 0 },
};

static const struct dss_reg_field omap3_dss_reg_fields[] = {
	[FEAT_REG_FIRHINC]			= { 12, 0 },
	[FEAT_REG_FIRVINC]			= { 28, 16 },
	[FEAT_REG_FIFOLOWTHRESHOLD]		= { 11, 0 },
	[FEAT_REG_FIFOHIGHTHRESHOLD]		= { 27, 16 },
	[FEAT_REG_FIFOSIZE]			= { 10, 0 },
	[FEAT_REG_HORIZONTALACCU]		= { 9, 0 },
	[FEAT_REG_VERTICALACCU]			= { 25, 16 },
	[FEAT_REG_DISPC_CLK_SWITCH]		= { 0, 0 },
	[FEAT_REG_DSIPLL_REGN]			= { 7, 1 },
	[FEAT_REG_DSIPLL_REGM]			= { 18, 8 },
	[FEAT_REG_DSIPLL_REGM_DISPC]		= { 22, 19 },
	[FEAT_REG_DSIPLL_REGM_DSI]		= { 26, 23 },
};

static const struct dss_reg_field omap4_dss_reg_fields[] = {
	[FEAT_REG_FIRHINC]			= { 12, 0 },
	[FEAT_REG_FIRVINC]			= { 28, 16 },
	[FEAT_REG_FIFOLOWTHRESHOLD]		= { 15, 0 },
	[FEAT_REG_FIFOHIGHTHRESHOLD]		= { 31, 16 },
	[FEAT_REG_FIFOSIZE]			= { 15, 0 },
	[FEAT_REG_HORIZONTALACCU]		= { 10, 0 },
	[FEAT_REG_VERTICALACCU]			= { 26, 16 },
	[FEAT_REG_DISPC_CLK_SWITCH]		= { 9, 8 },
	[FEAT_REG_DSIPLL_REGN]			= { 8, 1 },
	[FEAT_REG_DSIPLL_REGM]			= { 20, 9 },
	[FEAT_REG_DSIPLL_REGM_DISPC]		= { 25, 21 },
	[FEAT_REG_DSIPLL_REGM_DSI]		= { 30, 26 },
};

static const struct dss_reg_field omap5_dss_reg_fields[] = {
	[FEAT_REG_FIRHINC]			= { 12, 0 },
	[FEAT_REG_FIRVINC]			= { 28, 16 },
	[