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/*
* tilermgr.c
*
* TILER library support functions for TI OMAP processors.
*
* Copyright (C) 2009-2011 Texas Instruments, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of Texas Instruments Incorporated nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h> /* strerror() */
#include <fcntl.h> /* open() */
#include <unistd.h> /* close() */
#include <errno.h>
#include <sys/ioctl.h>
#include <tiler.h>
#include "tilermgr.h"
#include "mem_types.h"
#define TILERMGR_ERROR() \
fprintf(stderr, "%s()::%d: errno(%d) - \"%s\"\n", \
__FUNCTION__, __LINE__, errno, strerror(errno)); \
fflush(stderr);
static int fd;
int TilerMgr_Close()
{
close(fd);
return TILERMGR_ERR_NONE;
}
int TilerMgr_Open()
{
fd = open(TILER_DEVICE_PATH, O_RDWR);
if (fd < 0) {
TILERMGR_ERROR();
return TILERMGR_ERR_GENERIC;
}
return TILERMGR_ERR_NONE;
}
SSPtr TilerMgr_Alloc(enum pixel_fmt_t pixfmt, pixels_t width, pixels_t height)
{
int ret = -1;
struct tiler_block_info block = {0};
if (pixfmt < PIXEL_FMT_8BIT || pixfmt > PIXEL_FMT_32BIT)
return 0x0;
if (width <= 0 || width > TILER_WIDTH * 64)
return 0x0;
if (height <= 0 || height > TILER_HEIGHT * 64)
return 0x0;
block.fmt = pixfmt;
block.dim.area.width = width;
block.dim.area.height = height;
ret = ioctl(fd, TILIOC_GBLK, (unsigned long)(&block));
if (ret < 0) {
TILERMGR_ERROR();
return 0x0;
}
return block.ssptr;
}
int TilerMgr_Free(SSPtr addr)
{
int ret = -1;
struct tiler_block_info block = {0};
if (addr < TILER_MEM_8BIT || addr >= TILER_MEM_PAGED)
return TILERMGR_ERR_GENERIC;
block.ssptr = addr;
ret = ioctl(fd, TILIOC_FBLK, (unsigned long)(&block));
if (ret < 0) {
TILERMGR_ERROR();
return TILERMGR_ERR_GENERIC;
}
return TILERMGR_ERR_NONE;
}
SSPtr TilerMgr_PageModeAlloc(bytes_t len)
{
int ret = -1;
struct tiler_block_info block = {0};
if(len < 0 || len > TILER_LENGTH)
return 0x0;
block.fmt = TILFMT_PAGE;
block.dim.len = len;
ret = ioctl(fd, TILIOC_GBLK, (unsigned long)(&block));
if (ret < 0) {
TILERMGR_ERROR();
return 0x0;
}
return block.ssptr;
}
int TilerMgr_PageModeFree(SSPtr addr)
{
int ret = -1;
struct tiler_block_info block = {0};
if (addr < TILER_MEM_PAGED || addr >= TILER_MEM_END)
return TILERMGR_ERR_GENERIC;
block.ssptr = addr;
ret = ioctl(fd, TILIOC_FBLK, (unsigned long)(&block));
if (ret < 0) {
TILERMGR_ERROR();
return TILERMGR_ERR_GENERIC;
}
return TILERMGR_ERR_NONE;
}
SSPtr TilerMgr_VirtToPhys(void *ptr)
{
int ret = -1;
unsigned long tmp = 0x0;
if(ptr == NULL)
return 0x0;
tmp = (unsigned long)ptr;
ret = ioctl(fd, TILIOC_GSSP, tmp);
return (SSPtr)ret;
}
SSPtr TilerMgr_Map(void *ptr, bytes_t len)
{
int ret = -1;
struct tiler_block_info block = {0};
if (len < 0 || len > TILER_LENGTH)
return 0x0;
block.fmt = TILFMT_PAGE;
block.dim.len = len;
block.ptr = ptr;
ret = ioctl(fd, TILIOC_MBLK, (unsigned long)(&block));
if (ret < 0) {
TILERMGR_ERROR();
return 0x0;
}
return block.ssptr;
}
int TilerMgr_Unmap(SSPtr addr)
{
int ret = -1;
struct tiler_block_info block = {0};
if (addr < TILER_MEM_PAGED || addr >= TILER_MEM_END)
return TILERMGR_ERR_GENERIC;
block.ssptr = addr;
ret = ioctl(fd, TILIOC_UMBLK, (unsigned long)(&block));
if (ret < 0) {
TILERMGR_ERROR();
return TILERMGR_ERR_GENERIC;
}
return TILERMGR_ERR_NONE;
}
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