From: Archit Taneja <archit@xxxxxx> Add dss_features.c and dss_features.h for the dss_features framework Signed-off-by: Archit Taneja <archit@xxxxxx> --- drivers/video/omap2/dss/Makefile | 2 +- drivers/video/omap2/dss/dss_features.c | 191 ++++++++++++++++++++++++++++++++ drivers/video/omap2/dss/dss_features.h | 50 ++++++++ 3 files changed, 242 insertions(+), 1 deletions(-) create mode 100644 drivers/video/omap2/dss/dss_features.c create mode 100644 drivers/video/omap2/dss/dss_features.h diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile index d71b5d9..7db17b5 --- a/drivers/video/omap2/dss/Makefile +++ b/drivers/video/omap2/dss/Makefile @@ -1,5 +1,5 @@ obj-$(CONFIG_OMAP2_DSS) += omapdss.o -omapdss-y := core.o dss.o dispc.o display.o manager.o overlay.o +omapdss-y := core.o dss.o dss_features.o dispc.o display.o manager.o overlay.o omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c new file mode 100644 index 0000000..867f68d --- /dev/null +++ b/drivers/video/omap2/dss/dss_features.c @@ -0,0 +1,191 @@ +/* + * linux/drivers/video/omap2/dss/dss_features.c + * + * Copyright (C) 2010 Texas Instruments + * Author: Archit Taneja <archit@xxxxxx> + * + * 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 <plat/display.h> +#include <plat/cpu.h> + +#include "dss_features.h" + +/* Defines a generic omap register field */ +struct dss_reg_field { + enum dss_feat_reg_field id; + u8 start, end; +}; + +struct omap_dss_features { + const struct dss_reg_field *reg_fields; + const int num_reg_fields; + + const u32 has_feature; + + const int num_mgrs; + const int num_ovls; + const enum omap_display_type *supported_displays; + const enum omap_color_mode *supported_color_modes; +}; + +/* This struct is assigned to one of the below during initialization */ +static 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 }, +}; + +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 }, +}; + +static const enum omap_display_type omap2_dss_supported_displays[] = { + /* OMAP_DSS_CHANNEL_LCD */ + OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI | + OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI, + + /* OMAP_DSS_CHANNEL_DIGIT */ + OMAP_DISPLAY_TYPE_VENC, +}; + +static const enum omap_display_type omap3_dss_supported_displays[] = { + /* OMAP_DSS_CHANNEL_LCD */ + OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI | + OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI, + + /* OMAP_DSS_CHANNEL_DIGIT */ + OMAP_DISPLAY_TYPE_VENC, +}; + +static const enum omap_color_mode omap2_dss_supported_color_modes[] = { + /* OMAP_DSS_GFX */ + OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 | + OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 | + OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 | + OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P, + + /* OMAP_DSS_VIDEO1 */ + OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | + OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 | + OMAP_DSS_COLOR_UYVY, + + /* OMAP_DSS_VIDEO2 */ + OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | + OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 | + OMAP_DSS_COLOR_UYVY, +}; + +static const enum omap_color_mode omap3_dss_supported_color_modes[] = { + /* OMAP_DSS_GFX */ + OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 | + OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 | + OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | + OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | + OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 | + OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32, + + /* OMAP_DSS_VIDEO1 */ + OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P | + OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 | + OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_UYVY, + + /* OMAP_DSS_VIDEO2 */ + OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | + OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | + OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 | + OMAP_DSS_COLOR_UYVY | OMAP_DSS_COLOR_ARGB32 | + OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32, +}; + +/* OMAP2 DSS Features */ +static struct omap_dss_features omap2_dss_features = { + .reg_fields = omap2_dss_reg_fields, + .num_reg_fields = ARRAY_SIZE(omap2_dss_reg_fields), + + .num_mgrs = 2, + .num_ovls = 3, + .supported_displays = omap2_dss_supported_displays, + .supported_color_modes = omap2_dss_supported_color_modes, +}; + +/* OMAP3 DSS Features */ +static struct omap_dss_features omap3_dss_features = { + .reg_fields = omap3_dss_reg_fields, + .num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields), + + .has_feature = FEAT_GLOBAL_ALPHA, + + .num_mgrs = 2, + .num_ovls = 3, + .supported_displays = omap3_dss_supported_displays, + .supported_color_modes = omap3_dss_supported_color_modes, +}; + +/* Functions returning values related to a DSS feature */ +int dss_feat_get_num_mgrs(void) +{ + return omap_current_dss_features->num_mgrs; +} + +int dss_feat_get_num_ovls(void) +{ + return omap_current_dss_features->num_ovls; +} + +enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel) +{ + return omap_current_dss_features->supported_displays[channel]; +} + +enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane) +{ + return omap_current_dss_features->supported_color_modes[plane]; +} + +/* DSS has_feature check */ +bool dss_has_feature(enum dss_feat_id id) +{ + return omap_current_dss_features->has_feature & id; +} + +void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end) +{ + if (id >= omap_current_dss_features->num_reg_fields) + BUG(); + + *start = omap_current_dss_features->reg_fields[id].start; + *end = omap_current_dss_features->reg_fields[id].end; +} + +void dss_features_init(void) +{ + if (cpu_is_omap24xx()) + omap_current_dss_features = &omap2_dss_features; + else + omap_current_dss_features = &omap3_dss_features; +} diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h new file mode 100644 index 0000000..cb231ea --- /dev/null +++ b/drivers/video/omap2/dss/dss_features.h @@ -0,0 +1,50 @@ +/* + * linux/drivers/video/omap2/dss/dss_features.h + * + * Copyright (C) 2010 Texas Instruments + * Author: Archit Taneja <archit@xxxxxx> + * + * 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/>. + */ + +#ifndef __OMAP2_DSS_FEATURES_H +#define __OMAP2_DSS_FEATURES_H + +#define MAX_DSS_MANAGERS 2 +#define MAX_DSS_OVERLAYS 3 + +/* DSS has feature id */ +enum dss_feat_id { + FEAT_GLOBAL_ALPHA = 1 << 0, + FEAT_GLOBAL_ALPHA_VID1 = 1 << 1, +}; + +/* DSS register field id */ +enum dss_feat_reg_field { + FEAT_REG_FIRHINC, + FEAT_REG_FIRVINC, + FEAT_REG_FIFOHIGHTHRESHOLD, + FEAT_REG_FIFOLOWTHRESHOLD, + FEAT_REG_FIFOSIZE, +}; + +/* DSS Feature Functions */ +int dss_feat_get_num_mgrs(void); +int dss_feat_get_num_ovls(void); +enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel); +enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane); + +bool dss_has_feature(enum dss_feat_id id); +void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end); +void dss_features_init(void); +#endif -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
