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From: cvs at opencores.org<cvs@o...>
Date: Sat Jul 29 03:54:09 CEST 2006
Subject: [cvs-checkins] MODIFIED: mb-jpeg ...
Date: 00/06/07 29:03:54

Added: mb-jpeg/drivers/fsl_dct_v1_00_a/examples
fsl_dct_v2_1_0_app.c
Log:
Drivers for fsl_dct accelerator


Revision Changes Path
1.1 mb-jpeg/drivers/fsl_dct_v1_00_a/examples/fsl_dct_v2_1_0_app.c

http://www.opencores.org/cvsweb.shtml/mb-jpeg/drivers/fsl_dct_v1_00_a/examples/fsl_dct_v2_1_0_app.c?rev=1.1&content-type=text/x-cvsweb-markup

Index: fsl_dct_v2_1_0_app.c
===================================================================
//////////////////////////////////////////////////////////////////////////////
// Filename: D:\mb-jpeg\drivers/fsl_dct_v1_00_a/examples/fsl_dct_v2_1_0_app.c
// Version: 1.00.a
// Description: fsl_dct (FSL DCT accelerator) Driver Example File
// Date: Fri Jul 21 08:31:12 2006 (by Create and Import Peripheral Wizard)
//////////////////////////////////////////////////////////////////////////////

#include "fsl_dct.h"

#include "xparameters.h"

/*
* Follwing is an example driver function
* that is called in the main function.
*
* This example driver writes all the data in the input arguments
* into the input FSL bus through blocking writes. FSL peripheral will
* automatically read from the FSL bus. Once all the inputs
* have been written, the output from the FSL peripheral is read
* into output arguments through blocking reads.
*
* CAUTION:
*
* The sequence of writes and reads in this function should be consistent
* with the sequence of reads or writes in the HDL implementation of this
* coprocessor.
*
*/
// Instance name specific MACROs. Defined for each instance of the peripheral.
#define WRITE_FSL_DCT_0(val) write_into_fsl(val, XPAR_FSL_FSL_DCT_0_INPUT_SLOT_ID)
#define READ_FSL_DCT_0(val) read_from_fsl(val, XPAR_FSL_FSL_DCT_0_OUTPUT_SLOT_ID)

void fsl_dct_app(
unsigned int* input_0, /* Array size = 8 */
unsigned int* output_0 /* Array size = 8 */
)
{
int i;

//Start writing into the FSL bus
for (i=0; i<8; i++)
{
WRITE_FSL_DCT_0(input_0[i]);
}

//Start reading from the FSL bus
for (i=0; i<8; i++)
{
READ_FSL_DCT_0(output_0[i]);
}
}

main()
{
unsigned int input_0[8];
unsigned int output_0[8];


#ifdef __PPC__
// Enable APU for PowerPC.
unsigned int msr_i;
msr_i = mfmsr();
msr_i = (msr_i | XREG_MSR_APU_AVAILABLE | XREG_MSR_APU_ENABLE) & ~XREG_MSR_USER_MODE;
mtmsr(msr_i);
#endif

//Initialize your input data over here:



//Call the macro with instance specific slot IDs
fsl_dct(
XPAR_FSL_FSL_DCT_0_INPUT_SLOT_ID,
XPAR_FSL_FSL_DCT_0_OUTPUT_SLOT_ID,
input_0,
output_0
);

// You can also define your own function to access the peripheral
// Here you are calling the example function defined above
// Note the slot ID can not be passed over as function parameters
fsl_dct_app(
input_0,
output_0
);

}