__initfunc(void mem_init(unsigned long start_mem, unsigned long end_mem))
{
int codepages = 0;
int datapages = 0;
unsigned long tmp;
extern int _etext, _ftext;
#ifdef CONFIG_MIPS_JAZZ
if (mips_machgroup == MACH_GROUP_JAZZ)
start_mem = vdma_init(start_mem, end_mem);
#endif
end_mem &= PAGE_MASK;
max_mapnr = MAP_NR(end_mem);
high_memory = (void *)end_mem;
num_physpages = 0;
/* mark usable pages in the mem_map[] */
start_mem = PAGE_ALIGN(start_mem);
for(tmp = MAP_NR(start_mem);tmp < max_mapnr;tmp++)
clear_bit(PG_reserved, &mem_map[tmp].flags);
prom_fixup_mem_map(start_mem, (unsigned long)high_memory);
for (tmp = PAGE_OFFSET; tmp < end_mem; tmp += PAGE_SIZE) {
/*
* This is only for PC-style DMA. The onboard DMA
* of Jazz and Tyne machines is completely different and
* not handled via a flag in mem_map_t.
*/
if (tmp >= MAX_DMA_ADDRESS)
clear_bit(PG_DMA, &mem_map[MAP_NR(tmp)].flags);
if (PageReserved(mem_map+MAP_NR(tmp))) {
if ((tmp < (unsigned long) &_etext) &&
(tmp >= (unsigned long) &_ftext))
codepages++;
else if ((tmp < start_mem) &&
(tmp > (unsigned long) &_etext))
datapages++;
continue;
}
num_physpages++;
atomic_set(&mem_map[MAP_NR(tmp)].count, 1);
#ifdef CONFIG_BLK_DEV_INITRD
if (!initrd_start || (tmp < initrd_start || tmp >=
initrd_end))
#endif
free_page(tmp);
}
tmp = nr_free_pages << PAGE_SHIFT;
/* Setup zeroed pages. */
tmp -= setup_zero_pages();
printk("Memory: %luk/%luk available (%dk kernel code, %dk data)\n",
tmp >> 10,
max_mapnr << (PAGE_SHIFT-10),
codepages << (PAGE_SHIFT-10),
datapages << (PAGE_SHIFT-10));
}
int smart_car_demo_init( smart_car_demo_t *pDemo )
{
int ret;
OS_PRINTF("\n\r");
OS_PRINTF("------------------------------------------------------\n\r");
OS_PRINTF("-- Xilinx Zybo smart car demo --\n\r");
OS_PRINTF("-- 640*480P60 Real-Time Camera Demonstration --\n\r");
OS_PRINTF("------------------------------------------------------\n\r");
OS_PRINTF("\n\r");
pDemo->bVerbose = 0;
OS_PRINTF( "SMART_CAR Initialization ...\n\r" );
#if defined(XPAR_XIMAGE_FILTER_0_S_AXI_CONTROL_BUS_BASEADDR)
pDemo->SOBEL.IsReady = 1;
XSobel_Set_rows(&(pDemo->SOBEL), 480);
XSobel_Set_cols(&(pDemo->SOBEL), 640);
XSobel_Set_C_XR0C0(&(pDemo->SOBEL), 1);
XSobel_Set_C_XR0C1(&(pDemo->SOBEL), 0);
XSobel_Set_C_XR0C2(&(pDemo->SOBEL), -1);
XSobel_Set_C_XR1C0(&(pDemo->SOBEL), 2);
XSobel_Set_C_XR1C1(&(pDemo->SOBEL), 0);
XSobel_Set_C_XR1C2(&(pDemo->SOBEL), -2);
XSobel_Set_C_XR2C0(&(pDemo->SOBEL), 1);
XSobel_Set_C_XR2C1(&(pDemo->SOBEL), 0);
XSobel_Set_C_XR2C2(&(pDemo->SOBEL), -1);
XSobel_Set_C_YR0C0(&(pDemo->SOBEL), 1);
XSobel_Set_C_YR0C1(&(pDemo->SOBEL), 2);
XSobel_Set_C_YR0C2(&(pDemo->SOBEL), 1);
XSobel_Set_C_YR1C0(&(pDemo->SOBEL), 0);
XSobel_Set_C_YR1C1(&(pDemo->SOBEL), 0);
XSobel_Set_C_YR1C2(&(pDemo->SOBEL), 0);
XSobel_Set_C_YR2C0(&(pDemo->SOBEL), -1);
XSobel_Set_C_YR2C1(&(pDemo->SOBEL), -2);
XSobel_Set_C_YR2C2(&(pDemo->SOBEL), -1);
XSobel_Set_c_high_thresh(&(pDemo->SOBEL), 200);
XSobel_Set_c_low_thresh(&(pDemo->SOBEL), 100);
XSobel_Set_c_invert(&(pDemo->SOBEL), 1);
XSobel_Set_threshold(&(pDemo->SOBEL), 75);
XSobel_EnableAutoRestart(&(pDemo->SOBEL));
XSobel_InterruptDisable(&(pDemo->SOBEL), 0xFFFFFFFF);
XSobel_InterruptGlobalDisable(&(pDemo->SOBEL));
XSobel_Start(&(pDemo->SOBEL));
// printf("*******%d\n",XSobel_Get_c_invert(&(pDemo->SOBEL)));
OS_PRINTF("SOBEL done\r\n");
#endif
pDemo->vdma_resolution = 0;
// re-initialization
vdma_init( pDemo->uBaseAddr_VDMA_FrameBuffer,
pDemo->vdma_resolution,
VDMA_MEM_BASE_ADDR
);
sleep(2);
vdma_init_sobel( pDemo->uBaseAddr_VDMA_FrameBuffer_1,
pDemo->vdma_resolution,
VDMA_MEM_BASE_ADDR_1
);
return 0;
}
