static TVC_STATUS _AllocateInternalSRAM(void)
{
UINT32 pfhDmaFifoSize = TVC_SRC_WIDTH_MAX * 2 * TVC_PFH_DMA_FIFO_LEN;
UINT32 reszWorkingMemSize = ((TVC_TAR_WIDTH_MAX + 3) / 4 * 4) * 2 * TVC_RSZ_WORK_MEM_SZ;
_tvcContext.pfhDmaBufPA =
MT6573_SYSRAM_ALLOC(MT6573SYSRAMUSR_TVC,
pfhDmaFifoSize + reszWorkingMemSize, 16);
if (0 == _tvcContext.pfhDmaBufPA) {
printk("[TVC][ERROR] allocate TVC internal SRAM failed\n");
return TVC_STATUS_ERROR;
}
_tvcContext.reszLineBufPA = _tvcContext.pfhDmaBufPA + pfhDmaFifoSize;
ASSERT((_tvcContext.pfhDmaBufPA & 0xF) == 0);
ASSERT((_tvcContext.reszLineBufPA & 0x7) == 0);
return TVC_STATUS_OK;
}
//--------------------------------------------------------------------------
// JPEG DECODER IOCTRL FUNCTION
//--------------------------------------------------------------------------
static int jpeg_dec_ioctl(unsigned int cmd, unsigned long arg, struct file *file)
{
int retValue;
unsigned int decResult, i;
long timeout_jiff;
JPEG_DEC_DRV_IN inParams;
JPEG_DEC_DRV_OUT outParams;
unsigned int *pStatus;
pStatus = (unsigned int*)file->private_data;
if(NULL == pStatus)
{
printk("Private data is null in flush operation. HOW COULD THIS HAPPEN ??\n");
return -EFAULT;
}
switch(cmd)
{
case JPEG_DEC_IOCTL_INIT:
JPEG_MSG("JPEG Decoder Initial and Lock\n");
retValue = jpeg_drv_dec_init();
if(retValue != 0)
{
return -EBUSY;
}
dec_src_va = 0;
dec_src_pa = 0;
table_buffer_va = 0;
table_buffer_pa = 0;
*pStatus = JPEG_DEC_PROCESS;
break;
case JPEG_DEC_IOCTL_CONFIG:
JPEG_MSG("JPEG Decoder Configure Hardware\n");
if(*pStatus != JPEG_DEC_PROCESS)
{
printk("Permission Denied! This process can not access decoder");
return -EFAULT;
}
if(dec_status == 0)
{
printk("Decoder status is available, HOW COULD THIS HAPPEN ??");
*pStatus = 0;
return -EFAULT;
}
// copy input parameters
if(copy_from_user(&inParams, (void *)arg, sizeof(JPEG_DEC_DRV_IN)))
{
printk("JPEG Decoder : Copy from user error\n");
return -EFAULT;
}
JPEG_MSG("JPEG Decoder src addr : 0x%x\n", inParams.srcStreamAddr);
JPEG_MSG("JPEG Decoder src Size : %d\n", inParams.srcStreamSize);
JPEG_MSG("JPEG Decoder src format : %d\n", inParams.samplingFormat);
JPEG_MSG("JPEG Decoder mcu row : %d\n", inParams.mcuRow);
JPEG_MSG("JPEG Decoder mcu column : %d\n", inParams.mcuColumn);
dec_src_size = inParams.srcStreamSize;
//now_size = inParams.srcStreamSize;
dec_src_va = 0;
dec_src_pa = inParams.srcStreamAddr;
// 0. reset
jpeg_drv_dec_reset();
// 1. set source address
jpeg_drv_dec_set_file_buffer(dec_src_pa , dec_src_size);
// 2. set table address
#ifdef USE_SYSRAM
//table_buffer_pa = alloc_internal_sram(INTERNAL_SRAM_JPEG_DECODER, 4096, 2048);
table_buffer_pa = MT6573_SYSRAM_ALLOC(MT6573SYSRAMUSR_JPGDECODER, TABLE_SIZE, 2048);
#else
table_buffer_va = dma_alloc_coherent(0, TABLE_SIZE, &table_buffer_pa, GFP_KERNEL);
#endif
if(table_buffer_pa == 0)
{
printk("JPEG Decoder : table pa == 0!!!\n");
return -EFAULT;
}
jpeg_drv_dec_set_table_address(table_buffer_pa);
// 3. set sampling factor
if(1 != jpeg_drv_dec_set_sampling_factor_related(inParams.samplingFormat))
{
printk("JPEG Decoder : Sampling Factor Unsupported!!!\n");
return -EFAULT;
}
// 4. set component id
if(inParams.componentNum == 1)
{
jpeg_drv_dec_set_component_id(inParams.componentID[0], 0, 0);
}
else
{
jpeg_drv_dec_set_component_id(inParams.componentID[0], inParams.componentID[1], inParams.componentID[2]);
}
// 5. set tatal mcu number
jpeg_drv_dec_set_total_mcu(inParams.mcuRow * inParams.mcuColumn);
// set mcu number per row
//jpeg_drv_dec_set_mcu_per_row();
// 6. set each DU
for(i = 0 ; i < inParams.componentNum ; i++)
{
jpeg_drv_dec_set_du(i, inParams.totalDU[i], inParams.dummyDU[i], inParams.duPerMCURow[i]);
}
// 7. set file size
jpeg_drv_dec_set_file_size(dec_src_size + 16);
// 8. set Q-table id
if(inParams.componentNum == 1)
{
jpeg_drv_dec_set_q_table_id(inParams.qTableSelector[0], 0, 0);
}
else
{
jpeg_drv_dec_set_q_table_id(inParams.qTableSelector[0], inParams.qTableSelector[1], inParams.qTableSelector[2]);
}
break;
case JPEG_DEC_IOCTL_START:
// copy input parameters
JPEG_MSG("JPEG Decoder : JPEG_DEC_IOCTL_START\n");
if(*pStatus != JPEG_DEC_PROCESS)
{
printk("Permission Denied! This process can not access decoder");
return -EFAULT;
}
if(dec_status == 0)
{
printk("Decoder status is available, HOW COULD THIS HAPPEN ??");
*pStatus = 0;
return -EFAULT;
}
// jpeg_reg_dump();
jpeg_drv_dec_start();
return 0;
case JPEG_DEC_IOCTL_WAIT:
if(*pStatus != JPEG_DEC_PROCESS)
{
printk("Permission Denied! This process can not access decoder");
return -EFAULT;
}
if(dec_status == 0)
{
printk("Decoder status is available, HOW COULD THIS HAPPEN ??");
*pStatus = 0;
return -EFAULT;
}
if(copy_from_user(&outParams, (void *)arg, sizeof(JPEG_DEC_DRV_OUT)))
{
printk("JPEG Decoder : Copy from user error\n");
return -EFAULT;
}
//set timeout
timeout_jiff = outParams.timeout* HZ / 1000;
JPEG_MSG("JPEG Decoder Time Jiffies : %ld\n", timeout_jiff);
wait_event_interruptible_timeout(dec_wait_queue, _jpeg_dec_int_status, timeout_jiff);
decResult = jpeg_drv_dec_get_result();
_jpeg_dec_int_status = 0;
#ifdef USE_SYSRAM
if(table_buffer_pa != 0)
{
MT6573_SYSRAM_FREE(MT6573SYSRAMUSR_JPGDECODER);
table_buffer_pa = 0;
}
#else
if(table_buffer_va != 0)
{
dma_free_coherent(0, TABLE_SIZE, table_buffer_va, table_buffer_pa);
table_buffer_va = 0;
}
#endif
JPEG_MSG("Decode Result : %d \n", decResult);
if(decResult != 0)
{
jpeg_reg_dump();
}
if(copy_to_user(outParams.result, &decResult, sizeof(unsigned int)))
{
printk("JPEG Decoder : Copy to user error (result)\n");
return -EFAULT;
}
break;
case JPEG_DEC_IOCTL_DEINIT:
// copy input parameters
if(*pStatus != JPEG_DEC_PROCESS)
{
printk("Permission Denied! This process can not access decoder");
return -EFAULT;
}
if(dec_status == 0)
{
printk("Decoder status is available, HOW COULD THIS HAPPEN ??");
*pStatus = 0;
return -EFAULT;
}
jpeg_drv_dec_deinit();
*pStatus = 0;
break;
}
return 0;
}