2c8f92039d
Added initial support Xilinx Embedded Software. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
152 lines
7 KiB
C
Executable file
152 lines
7 KiB
C
Executable file
/******************************************************************************
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* (c) Copyright 2009-2013 Xilinx, Inc. All rights reserved.
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*
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* This file contains confidential and proprietary information
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* of Xilinx, Inc. and is protected under U.S. and
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* international copyright and other intellectual property
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* laws.
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*
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* DISCLAIMER
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* This disclaimer is not a license and does not grant any
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* rights to the materials distributed herewith. Except as
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* otherwise provided in a valid license issued to you by
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* Xilinx, and to the maximum extent permitted by applicable
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* law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND
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* WITH ALL FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES
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* AND CONDITIONS, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING
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* BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, NON-
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* INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and
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* (2) Xilinx shall not be liable (whether in contract or tort,
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* including negligence, or under any other theory of
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* liability) for any loss or damage of any kind or nature
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* related to, arising under or in connection with these
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* materials, including for any direct, or any indirect,
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* special, incidental, or consequential loss or damage
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* (including loss of data, profits, goodwill, or any type of
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* loss or damage suffered as a result of any action brought
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* by a third party) even if such damage or loss was
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* reasonably foreseeable or Xilinx had been advised of the
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* possibility of the same.
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*
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* CRITICAL APPLICATIONS
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* Xilinx products are not designed or intended to be fail-
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* safe, or for use in any application requiring fail-safe
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* performance, such as life-support or safety devices or
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* systems, Class III medical devices, nuclear facilities,
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* applications related to the deployment of airbags, or any
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* other applications that could lead to death, personal
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* injury, or severe property or environmental damage
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* (individually and collectively, "Critical
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* Applications"). Customer assumes the sole risk and
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* liability of any use of Xilinx products in Critical
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* Applications, subject only to applicable laws and
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* regulations governing limitations on product liability.
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*
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* THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS
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* PART OF THIS FILE AT ALL TIMES.
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******************************************************************************/
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/*****************************************************************************/
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/**
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*
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* @file example.c
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*
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* This file demonstrates how to use Xilinx Image Enhancement (Enhance)
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* driver of the Xilinx Image Enhancement core. This code does not
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* cover the Enhance setup and any other configuration which might be
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* required to get the Enhance device working properly.
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*
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* <pre>
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* MODIFICATION HISTORY:
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*
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* Ver Who Date Changes
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* ----- ---- -------- -------------------------------------------------------
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* 5.00a vc 06/19/13 Updated for new edge enhancement and noise reduction algorithms and registers
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* 4.00a vc 12/18/12 Updated for new gain quantization levels
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* 4.00a vc 10/16/12 Switched from Xuint32 to u32
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* Renamed example function to main()
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* Renamed reference to XPAR_ENHANCE_0_BASEADDR
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* 4.00a vc 04/24/12 Updated for v4.00.a
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* 2.00a vc 12/14/10 First release
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* </pre>
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*
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* ***************************************************************************
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*/
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#include "enhance.h"
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#include "xparameters.h"
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/***************************************************************************/
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// Image Enhancement Register Reading Example
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// This function provides an example of how to read the current configuration
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// settings of the Enhance core.
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/***************************************************************************/
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void report_enhance_settings(u32 BaseAddress) {
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xil_printf("Image Edge Enhancement Core Configuration:\r\n");
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xil_printf(" Enhance Version: 0x%08x\r\n", ENHANCE_ReadReg(BaseAddress, ENHANCE_VERSION));
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xil_printf(" Enhance Enable Bit: %1d\r\n", ENHANCE_ReadReg(BaseAddress, ENHANCE_CONTROL) & ENHANCE_CTL_EN_MASK);
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xil_printf(" Enhance Register Update Bit: %1d\r\n", (ENHANCE_ReadReg(BaseAddress, ENHANCE_CONTROL) & ENHANCE_CTL_RU_MASK) >> 1);
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xil_printf(" Enhance Reset Bit: %1d\r\n", (ENHANCE_ReadReg(BaseAddress, ENHANCE_CONTROL) & ENHANCE_CTL_RESET) >> 31);
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xil_printf(" Enhance AutoReset Bit: %1d\r\n", (ENHANCE_ReadReg(BaseAddress, ENHANCE_CONTROL) & ENHANCE_CTL_AUTORESET) >> 30);
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xil_printf(" Active Columns=%d, Active Rows=%d\r\n",
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ENHANCE_ReadReg(BaseAddress, ENHANCE_ACTIVE_SIZE)&0x0000FFFF,
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ENHANCE_ReadReg(BaseAddress, ENHANCE_ACTIVE_SIZE)>>16);
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xil_printf(" Noise Threshold=%d, Enhance Strength=%d, Halo Suppression=%d\r\n",
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ENHANCE_ReadReg(BaseAddress, ENHANCE_NOISE_THRESHOLD),
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ENHANCE_ReadReg(BaseAddress, ENHANCE_ENHANCE_STRENGTH),
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ENHANCE_ReadReg(BaseAddress, ENHANCE_HALO_SUPPRESS));
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}
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/***************************************************************************/
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// Image Enhancement Register Update Example
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// This function provides an example of the process used to update
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// the noise, enhance, and halo registers in the Enhance core.
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// In most video systems, it is expected that this process would be executed
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// in response to an interrupt connected to the SOF video timing signal
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// or a timeout signal associated with a watchdog timer.
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/***************************************************************************/
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void ENHANCE_Update_Example(u32 BaseAddress) {
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//Enable the Enhance software enable
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ENHANCE_Enable(BaseAddress);
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//Disable register updates.
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//This is the default operating mode for the Enhance core, and allows
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//registers to be updated without effecting the core's behavior.
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ENHANCE_RegUpdateDisable(BaseAddress);
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//Set the noise threshold
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// These values are integers in the range: [0, 2^DATA_WIDTH-1]
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ENHANCE_WriteReg(BaseAddress, ENHANCE_NOISE_THRESHOLD, 255); //maximum value for 8 bit data
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//Set the enhance strength and halo suppression factor
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// These values are floating point values in the range: [0, 1]
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// These are represented as integers by multiplying by 2^15,
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// resulting in an integer value in the range from [0, 32728]
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ENHANCE_WriteReg(BaseAddress, ENHANCE_ENHANCE_STRENGTH, 32768); //maximum value
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ENHANCE_WriteReg(BaseAddress, ENHANCE_HALO_SUPPRESS, 32768); //maximum value
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//Enable register updates.
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//This mode will cause the active size and noise, enhance, halo registers internal
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//to the Enhance core to automatically be updated on the next SOF
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ENHANCE_RegUpdateEnable(BaseAddress);
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}
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/*****************************************************************************/
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//
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// This is the main function for the Enhance example.
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//
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/*****************************************************************************/
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int main(void)
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{
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//Print the current settings for the Enhance core
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report_enhance_settings(XPAR_ENHANCE_0_BASEADDR);
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//Call the Enhance example, specify the Device ID generated in xparameters.h
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ENHANCE_Update_Example(XPAR_ENHANCE_0_BASEADDR);
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return 0;
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}
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