mirror of
https://github.com/torvalds/linux
synced 2024-10-21 10:49:43 +00:00
2874c5fd28
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
114 lines
2.1 KiB
C
114 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Samsung S5P G2D - 2D Graphics Accelerator Driver
|
|
*
|
|
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
|
|
* Kamil Debski, <k.debski@samsung.com>
|
|
*/
|
|
|
|
#include <linux/io.h>
|
|
|
|
#include "g2d.h"
|
|
#include "g2d-regs.h"
|
|
|
|
#define w(x, a) writel((x), d->regs + (a))
|
|
#define r(a) readl(d->regs + (a))
|
|
|
|
/* g2d_reset clears all g2d registers */
|
|
void g2d_reset(struct g2d_dev *d)
|
|
{
|
|
w(1, SOFT_RESET_REG);
|
|
}
|
|
|
|
void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f)
|
|
{
|
|
u32 n;
|
|
|
|
w(0, SRC_SELECT_REG);
|
|
w(f->stride & 0xFFFF, SRC_STRIDE_REG);
|
|
|
|
n = f->o_height & 0xFFF;
|
|
n <<= 16;
|
|
n |= f->o_width & 0xFFF;
|
|
w(n, SRC_LEFT_TOP_REG);
|
|
|
|
n = f->bottom & 0xFFF;
|
|
n <<= 16;
|
|
n |= f->right & 0xFFF;
|
|
w(n, SRC_RIGHT_BOTTOM_REG);
|
|
|
|
w(f->fmt->hw, SRC_COLOR_MODE_REG);
|
|
}
|
|
|
|
void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a)
|
|
{
|
|
w(a, SRC_BASE_ADDR_REG);
|
|
}
|
|
|
|
void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f)
|
|
{
|
|
u32 n;
|
|
|
|
w(0, DST_SELECT_REG);
|
|
w(f->stride & 0xFFFF, DST_STRIDE_REG);
|
|
|
|
n = f->o_height & 0xFFF;
|
|
n <<= 16;
|
|
n |= f->o_width & 0xFFF;
|
|
w(n, DST_LEFT_TOP_REG);
|
|
|
|
n = f->bottom & 0xFFF;
|
|
n <<= 16;
|
|
n |= f->right & 0xFFF;
|
|
w(n, DST_RIGHT_BOTTOM_REG);
|
|
|
|
w(f->fmt->hw, DST_COLOR_MODE_REG);
|
|
}
|
|
|
|
void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a)
|
|
{
|
|
w(a, DST_BASE_ADDR_REG);
|
|
}
|
|
|
|
void g2d_set_rop4(struct g2d_dev *d, u32 r)
|
|
{
|
|
w(r, ROP4_REG);
|
|
}
|
|
|
|
void g2d_set_flip(struct g2d_dev *d, u32 r)
|
|
{
|
|
w(r, SRC_MSK_DIRECT_REG);
|
|
}
|
|
|
|
void g2d_set_v41_stretch(struct g2d_dev *d, struct g2d_frame *src,
|
|
struct g2d_frame *dst)
|
|
{
|
|
w(DEFAULT_SCALE_MODE, SRC_SCALE_CTRL_REG);
|
|
|
|
/* inversed scaling factor: src is numerator */
|
|
w((src->c_width << 16) / dst->c_width, SRC_XSCALE_REG);
|
|
w((src->c_height << 16) / dst->c_height, SRC_YSCALE_REG);
|
|
}
|
|
|
|
void g2d_set_cmd(struct g2d_dev *d, u32 c)
|
|
{
|
|
w(c, BITBLT_COMMAND_REG);
|
|
}
|
|
|
|
void g2d_start(struct g2d_dev *d)
|
|
{
|
|
/* Clear cache */
|
|
if (d->variant->hw_rev == TYPE_G2D_3X)
|
|
w(0x7, CACHECTL_REG);
|
|
|
|
/* Enable interrupt */
|
|
w(1, INTEN_REG);
|
|
/* Start G2D engine */
|
|
w(1, BITBLT_START_REG);
|
|
}
|
|
|
|
void g2d_clear_int(struct g2d_dev *d)
|
|
{
|
|
w(1, INTC_PEND_REG);
|
|
}
|