From: Lajos Molnar mol...@ti.com
This patch contains information on TILER geometry, as well as
tiler_view_t object manipulation functions.
It also contains an internal TILER header file to share geometric
information with other TILER files.
Signed-off-by: Lajos Molnar mol...@ti.com
Signed-off-by: David Sin david...@ti.com
---
drivers/misc/tiler/_tiler.h | 48 +
drivers/misc/tiler/tiler-geom.c | 362 +++
2 files changed, 410 insertions(+), 0 deletions(-)
create mode 100644 drivers/misc/tiler/_tiler.h
create mode 100644 drivers/misc/tiler/tiler-geom.c
diff --git a/drivers/misc/tiler/_tiler.h b/drivers/misc/tiler/_tiler.h
new file mode 100644
index 000..0f00330
--- /dev/null
+++ b/drivers/misc/tiler/_tiler.h
@@ -0,0 +1,48 @@
+/*
+ * TI TILER driver internal shared definitions.
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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 version 2.
+ *
+ * This program is distributed as is WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _TILER_H
+#define _TILER_H
+
+#include linux/kernel.h
+#include mach/tiler.h
+#include tcm.h
+
+#define TILER_FORMATS (TILFMT_MAX - TILFMT_MIN + 1)
+
+/* tiler geometry information */
+struct tiler_geom {
+ u32 x_shft; /* unused X-bits (as part of bpp) */
+ u32 y_shft; /* unused Y-bits (as part of bpp) */
+ u32 bpp;/* bytes per pixel */
+ u32 slot_w; /* width of each slot (in pixels) */
+ u32 slot_h; /* height of each slot (in pixels) */
+};
+
+/* methods and variables shared between source files */
+struct tiler_ops {
+ /* geometry operations */
+ void (*xy) (u32 ssptr, u32 *x, u32 *y);
+ u32 (*addr) (enum tiler_fmt fmt, u32 x, u32 y);
+ const struct tiler_geom * (*geom) (enum tiler_fmt fmt);
+
+ u32 page; /* page size */
+ u32 width; /* container width */
+ u32 height; /* container height */
+};
+
+void tiler_geom_init(struct tiler_ops *tiler);
+
+#endif
diff --git a/drivers/misc/tiler/tiler-geom.c b/drivers/misc/tiler/tiler-geom.c
new file mode 100644
index 000..df5fe2c
--- /dev/null
+++ b/drivers/misc/tiler/tiler-geom.c
@@ -0,0 +1,362 @@
+/*
+ * TILER geometry functions for TI TILER hardware block.
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * 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 version 2.
+ *
+ * This program is distributed as is WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include linux/module.h
+#include _tiler.h
+
+/* bits representing the same slot in DMM-TILER hw-block */
+#define SLOT_WIDTH_BITS6
+#define SLOT_HEIGHT_BITS 6
+
+/* bits reserved to describe coordinates in DMM-TILER hw-block */
+#define CONT_WIDTH_BITS14
+#define CONT_HEIGHT_BITS 13
+
+static struct tiler_geom geom[TILER_FORMATS] = {
+ {
+ .x_shft = 0,
+ .y_shft = 0,
+ },
+ {
+ .x_shft = 0,
+ .y_shft = 1,
+ },
+ {
+ .x_shft = 1,
+ .y_shft = 1,
+ },
+};
+
+/* tiler space addressing bitfields */
+#define MASK_XY_FLIP (1 31)
+#define MASK_Y_INVERT (1 30)
+#define MASK_X_INVERT (1 29)
+#define SHIFT_ACC_MODE 27
+#define MASK_ACC_MODE 3
+
+/* calculated constants */
+#define TILER_PAGE (1 (SLOT_WIDTH_BITS + SLOT_HEIGHT_BITS))
+#define TILER_WIDTH(1 (CONT_WIDTH_BITS - SLOT_WIDTH_BITS))
+#define TILER_HEIGHT (1 (CONT_HEIGHT_BITS - SLOT_HEIGHT_BITS))
+
+#define VIEW_SIZE (1u (CONT_WIDTH_BITS + CONT_HEIGHT_BITS))
+#define VIEW_MASK (VIEW_SIZE - 1u)
+
+#define MASK(bits) ((1 (bits)) - 1)
+
+#define TILER_FMT(x) ((enum tiler_fmt) \
+ ((x SHIFT_ACC_MODE) MASK_ACC_MODE))
+
+#define MASK_VIEW (MASK_X_INVERT | MASK_Y_INVERT | MASK_XY_FLIP)
+
+/* location of the various tiler views in physical address space */
+#define TILVIEW_8BIT 0x6000u
+#define TILVIEW_16BIT (TILVIEW_8BIT + VIEW_SIZE)
+#define TILVIEW_32BIT (TILVIEW_16BIT + VIEW_SIZE)
+#define TILVIEW_PAGE (TILVIEW_32BIT + VIEW_SIZE)
+#define TILVIEW_END(TILVIEW_PAGE + VIEW_SIZE)
+
+/* create tsptr by adding
