Add dss_features.c and dss_features.h for the dss_features framework Signed-off-by: Archit Taneja <archit@xxxxxx> --- drivers/video/omap2/dss/dss_features.c | 171 ++++++++++++++++++++++++++++++++ drivers/video/omap2/dss/dss_features.h | 51 ++++++++++ 2 files changed, 222 insertions(+), 0 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/dss_features.c b/drivers/video/omap2/dss/dss_features.c new file mode 100644 index 0000000..e87816f --- /dev/null +++ b/drivers/video/omap2/dss/dss_features.c @@ -0,0 +1,171 @@ +/* + * 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 { + struct dss_reg_field reg_fields[MAX_DSS_REG_FIELDS]; + u32 has_feature; + + int num_mgrs; + int num_ovls; + enum omap_display_type supported_displays[MAX_DSS_MANAGERS]; + enum omap_color_mode supported_color_modes[MAX_DSS_OVERLAYS]; +}; + +/* This struct is assigned to one of the below during initialization */ +static struct omap_dss_features omap_current_dss_features; + +/* OMAP2 DSS Features */ +static struct omap_dss_features omap2_dss_features = { + .reg_fields = { + {FIRHINC, 11, 0}, + {FIRVINC, 27, 16}, + {FIFOLOWTHRESHOLD, 8, 0}, + {FIFOHIGHTHRESHOLD, 24, 16}, + {FIFOSIZE, 8, 0}, + }, + + .num_mgrs = 2, + .num_ovls = 3, + .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, + }, + .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, + }, +}; + +/* OMAP3 DSS Features */ +static struct omap_dss_features omap3_dss_features = { + .reg_fields = { + {FIRHINC, 12, 0}, + {FIRVINC, 28, 16}, + {FIFOLOWTHRESHOLD, 11, 0}, + {FIFOHIGHTHRESHOLD, 27, 16}, + {FIFOSIZE, 10, 0}, + }, + .has_feature = FEAT_GLOBAL_ALPHA, + + .num_mgrs = 2, + .num_ovls = 3, + .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, + }, + .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, + }, +}; + +/* 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(int id) +{ + return omap_current_dss_features.supported_displays[id]; +} + +enum omap_color_mode dss_feat_get_supported_color_modes(int id) +{ + return omap_current_dss_features.supported_color_modes[id]; +} + +/* 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) +{ + *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..f1a7e17 --- /dev/null +++ b/drivers/video/omap2/dss/dss_features.h @@ -0,0 +1,51 @@ +/* + * 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 +#define MAX_DSS_REG_FIELDS 10 + +/* 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 { + FIRHINC, + FIRVINC, + FIFOHIGHTHRESHOLD, + FIFOLOWTHRESHOLD, + 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(int id); +enum omap_color_mode dss_feat_get_supported_color_modes(int id); + +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
