linux/drivers/staging/sm750fb/sm750_accel.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/fb.h>
#include <linux/ioport.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
#include <linux/pagemap.h>
#include <linux/console.h>
#include <linux/platform_device.h>

#include "sm750.h"
#include "sm750_accel.h"
static inline void write_dpr(struct lynx_accel *accel, int offset, u32 regValue)
{ … }

static inline u32 read_dpr(struct lynx_accel *accel, int offset)
{ … }

static inline void write_dpPort(struct lynx_accel *accel, u32 data)
{ … }

void sm750_hw_de_init(struct lynx_accel *accel)
{ … }

/*
 * set2dformat only be called from setmode functions
 * but if you need dual framebuffer driver,need call set2dformat
 * every time you use 2d function
 */

void sm750_hw_set2dformat(struct lynx_accel *accel, int fmt)
{ … }

int sm750_hw_fillrect(struct lynx_accel *accel,
		      u32 base, u32 pitch, u32 Bpp,
		      u32 x, u32 y, u32 width, u32 height,
		      u32 color, u32 rop)
{ … }

/**
 * sm750_hw_copyarea
 * @accel: Acceleration device data
 * @sBase: Address of source: offset in frame buffer
 * @sPitch: Pitch value of source surface in BYTE
 * @sx: Starting x coordinate of source surface
 * @sy: Starting y coordinate of source surface
 * @dBase: Address of destination: offset in frame buffer
 * @dPitch: Pitch value of destination surface in BYTE
 * @Bpp: Color depth of destination surface
 * @dx: Starting x coordinate of destination surface
 * @dy: Starting y coordinate of destination surface
 * @width: width of rectangle in pixel value
 * @height: height of rectangle in pixel value
 * @rop2: ROP value
 */
int sm750_hw_copyarea(struct lynx_accel *accel,
		      unsigned int sBase, unsigned int sPitch,
		      unsigned int sx, unsigned int sy,
		      unsigned int dBase, unsigned int dPitch,
		      unsigned int Bpp, unsigned int dx, unsigned int dy,
		      unsigned int width, unsigned int height,
		      unsigned int rop2)
{ … }

static unsigned int deGetTransparency(struct lynx_accel *accel)
{ … }

/**
 * sm750_hw_imageblit
 * @accel: Acceleration device data
 * @pSrcbuf: pointer to start of source buffer in system memory
 * @srcDelta: Pitch value (in bytes) of the source buffer, +ive means top down
 *	      and -ive mean button up
 * @startBit: Mono data can start at any bit in a byte, this value should be
 *	      0 to 7
 * @dBase: Address of destination: offset in frame buffer
 * @dPitch: Pitch value of destination surface in BYTE
 * @bytePerPixel: Color depth of destination surface
 * @dx: Starting x coordinate of destination surface
 * @dy: Starting y coordinate of destination surface
 * @width: width of rectangle in pixel value
 * @height: height of rectangle in pixel value
 * @fColor: Foreground color (corresponding to a 1 in the monochrome data
 * @bColor: Background color (corresponding to a 0 in the monochrome data
 * @rop2: ROP value
 */
int sm750_hw_imageblit(struct lynx_accel *accel, const char *pSrcbuf,
		       u32 srcDelta, u32 startBit, u32 dBase, u32 dPitch,
		       u32 bytePerPixel, u32 dx, u32 dy, u32 width,
		       u32 height, u32 fColor, u32 bColor, u32 rop2)
{ … }