video: tegra: dc: Add display feature table support.

Add display feature table so that user and kernel could set and
update window attributes properly.

Bug 962353

Change-Id: I08490a225892660126f3eefe4d5b7a4bb61d9bf7
Signed-off-by: Kevin Huang <kevinh@nvidia.com>
Reviewed-on: http://git-master/r/101078
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>

1 files changed, 252 insertions, 0 deletions

diff --git a/drivers/video/tegra/dc/dc_config.c b/drivers/video/tegra/dc/dc_config.c
new file mode 100644
index 000000000000..3eebab6f66a8
--- /dev/null
+++ b/drivers/video/tegra/dc/dc_config.c
@@ -0,0 +1,252 @@
+/*
+ * drivers/video/tegra/dc/dc_config.c
+ * * Copyright (c) 2012, NVIDIA Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include "dc_config.h"
+
+static struct tegra_dc_feature_entry t20_feature_entries_a[] = {
+	{ 0, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_A,} },
+	{ 0, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 0, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 0, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 0, TEGRA_DC_FEATURE_FILTER_TYPE, {0, 0,} },
+	{ 0, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 0, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+
+	{ 1, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_B,} },
+	{ 1, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 1, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 1, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 1, TEGRA_DC_FEATURE_FILTER_TYPE, {1, 1,} },
+	{ 1, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 1, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+
+	{ 2, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_C,} },
+	{ 2, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 2, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 2, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 2, TEGRA_DC_FEATURE_FILTER_TYPE, {0, 1,} },
+	{ 2, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 2, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+};
+
+static struct tegra_dc_feature_entry t20_feature_entries_b[] = {
+	{ 0, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_A,} },
+	{ 0, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 0, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 0, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 0, TEGRA_DC_FEATURE_FILTER_TYPE, {0, 0,} },
+	{ 0, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 0, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+
+	{ 1, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_B,} },
+	{ 1, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 1, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 1, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 1, TEGRA_DC_FEATURE_FILTER_TYPE, {1, 1,} },
+	{ 1, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 1, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+
+	{ 2, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_C,} },
+	{ 2, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 2, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 2, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 2, TEGRA_DC_FEATURE_FILTER_TYPE, {0, 1,} },
+	{ 2, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 2, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+};
+
+struct tegra_dc_feature t20_feature_table_a = {
+	ARRAY_SIZE(t20_feature_entries_a), t20_feature_entries_a,
+};
+
+struct tegra_dc_feature t20_feature_table_b = {
+	ARRAY_SIZE(t20_feature_entries_b), t20_feature_entries_b,
+};
+
+static struct tegra_dc_feature_entry t30_feature_entries_a[] = {
+	{ 0, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_A,} },
+	{ 0, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 0, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 0, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 0, TEGRA_DC_FEATURE_FILTER_TYPE, {0, 0,} },
+	{ 0, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 0, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+
+	{ 1, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_B,} },
+	{ 1, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 1, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 1, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 1, TEGRA_DC_FEATURE_FILTER_TYPE, {1, 1,} },
+	{ 1, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 1, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+
+	{ 2, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_C,} },
+	{ 2, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 2, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 2, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 2, TEGRA_DC_FEATURE_FILTER_TYPE, {0, 1,} },
+	{ 2, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 2, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+};
+
+static struct tegra_dc_feature_entry t30_feature_entries_b[] = {
+	{ 0, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_A,} },
+	{ 0, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 0, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 0, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 0, TEGRA_DC_FEATURE_FILTER_TYPE, {0, 0,} },
+	{ 0, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 0, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+
+	{ 1, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_B,} },
+	{ 1, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 1, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 1, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 1, TEGRA_DC_FEATURE_FILTER_TYPE, {1, 1,} },
+	{ 1, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 1, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+
+	{ 2, TEGRA_DC_FEATURE_FORMATS, {TEGRA_WIN_FMT_WIN_C,} },
+	{ 2, TEGRA_DC_FEATURE_BLEND_TYPE, {1,} },
+	{ 2, TEGRA_DC_FEATURE_MAXIMUM_SIZE, {4095, 16, 4095, 16,} },
+	{ 2, TEGRA_DC_FEATURE_MAXIMUM_SCALE, {2, 2, 2, 2,} },
+	{ 2, TEGRA_DC_FEATURE_FILTER_TYPE, {0, 1,} },
+	{ 2, TEGRA_DC_FEATURE_LAYOUT_TYPE, {1,} },
+	{ 2, TEGRA_DC_FEATURE_INVERT_TYPE, {1, 1, 0,} },
+};
+
+struct tegra_dc_feature t30_feature_table_a = {
+	ARRAY_SIZE(t30_feature_entries_a), t30_feature_entries_a,
+};
+
+struct tegra_dc_feature t30_feature_table_b = {
+	ARRAY_SIZE(t30_feature_entries_b), t30_feature_entries_b,
+};
+
+int tegra_dc_get_feature(struct tegra_dc_feature *feature, int win_idx,
+					enum tegra_dc_feature_option option)
+{
+	int i;
+	struct tegra_dc_feature_entry *entry;
+
+	if (!feature)
+		return -EINVAL;
+
+	for (i = 0; i < feature->num_entries; i++) {
+		entry = &feature->entries[i];
+		if (entry->window_index == win_idx && entry->option == option)
+			return i;
+	}
+
+	return -EINVAL;
+}
+
+long *tegra_dc_parse_feature(struct tegra_dc *dc, int win_idx, int operation)
+{
+	int idx;
+	struct tegra_dc_feature_entry *entry;
+	enum tegra_dc_feature_option option;
+	struct tegra_dc_feature *feature = dc->feature;
+
+	switch (operation) {
+	case GET_WIN_FORMATS:
+		option = TEGRA_DC_FEATURE_FORMATS;
+		break;
+	case GET_WIN_SIZE:
+		option = TEGRA_DC_FEATURE_MAXIMUM_SIZE;
+		break;
+	case HAS_SCALE:
+		option = TEGRA_DC_FEATURE_MAXIMUM_SCALE;
+		break;
+	case HAS_TILED:
+		option = TEGRA_DC_FEATURE_LAYOUT_TYPE;
+		break;
+	case HAS_V_FILTER:
+		option = TEGRA_DC_FEATURE_FILTER_TYPE;
+		break;
+	case HAS_H_FILTER:
+		option = TEGRA_DC_FEATURE_FILTER_TYPE;
+		break;
+	case HAS_GEN2_BLEND:
+		option = TEGRA_DC_FEATURE_BLEND_TYPE;
+		break;
+	default:
+		return NULL;
+	}
+
+	idx = tegra_dc_get_feature(feature, win_idx, option);
+	if (IS_ERR_VALUE(idx))
+		return NULL;
+	entry = &feature->entries[idx];
+
+	return entry->arg;
+}
+
+int tegra_dc_feature_has_scaling(struct tegra_dc *dc, int win_idx)
+{
+	int i;
+	long *addr = tegra_dc_parse_feature(dc, win_idx, HAS_SCALE);
+
+	for (i = 0; i < ENTRY_SIZE; i++)
+		if (addr[i] != 1)
+			return 1;
+	return 0;
+}
+
+int tegra_dc_feature_has_tiling(struct tegra_dc *dc, int win_idx)
+{
+	long *addr = tegra_dc_parse_feature(dc, win_idx, HAS_TILED);
+
+	return addr[0];
+}
+
+int tegra_dc_feature_has_filter(struct tegra_dc *dc, int win_idx, int operation)
+{
+	long *addr = tegra_dc_parse_feature(dc, win_idx, operation);
+
+	if (operation == HAS_V_FILTER)
+		return addr[0];
+	else
+		return addr[1];
+}
+
+void tegra_dc_feature_register(struct tegra_dc *dc)
+{
+#if defined(CONFIG_ARCH_TEGRA_2x_SOC)
+	if (!dc->ndev->id)
+		dc->feature = &t20_feature_table_a;
+	else
+		dc->feature = &t20_feature_table_b;
+#elif defined(CONFIG_ARCH_TEGRA_3x_SOC)
+	if (!dc->ndev->id)
+		dc->feature = &t30_feature_table_a;
+	else
+		dc->feature = &t30_feature_table_b;
+#elif defined(CONFIG_ARCH_TEGRA_11x_SOC)
+	if (!dc->ndev->id)
+		dc->feature = &t114_feature_table_a;
+	else
+		dc->feature = &t114_feature_table_b;
+#elif defined(CONFIG_ARCH_TEGRA_14x_SOC)
+	if (!dc->ndev->id)
+		dc->feature = &t148_feature_table_a;
+	else
+		dc->feature = &t148_feature_table_b;
+#endif
+}