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[v2,1/2] OMAP: DSS2: Introduce dss_features files

Message ID 1283944659-3824-2-git-send-email-archit@ti.com (mailing list archive)
State New, archived
Delegated to: Tomi Valkeinen
Headers show

Commit Message

archit taneja Sept. 8, 2010, 11:17 a.m. UTC 
None
diff mbox

Patch

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@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 <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@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/>.
+ */
+
+#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