2c8f92039d
Added initial support Xilinx Embedded Software. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
176 lines
7.3 KiB
C
Executable file
176 lines
7.3 KiB
C
Executable file
/******************************************************************************
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*
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* Copyright (C) 2009 - 2014 Xilinx, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* Use of the Software is limited solely to applications:
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* (a) running on a Xilinx device, or
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* (b) that interact with a Xilinx device through a bus or interconnect.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
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* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Except as contained in this notice, the name of the Xilinx shall not be used
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* in advertising or otherwise to promote the sale, use or other dealings in
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* this Software without prior written authorization from Xilinx.
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*
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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 Color Correction Matrix (CCM)
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* driver on Xilinx Color Correction Matrix (CCM) core. This code does not
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* cover the Xilinx TimeBase setup and any other configuration which might be
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* required to get the CCM 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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* 4.00a tb 02/27/12 Updates for the v4.00.a release
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* 1.00a xd 05/15/09 First release
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* </pre>
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*
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* ***************************************************************************
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*/
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#include "ccm.h"
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#include "xparameters.h"
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/***************************************************************************/
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// Color Correction Matrix 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 CCM core.
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/***************************************************************************/
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void report_ccm_settings(u32 BaseAddress) {
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xil_printf("Color Correction Matrix Core Configuration:\r\n");
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xil_printf(" CCM Version: 0x%08x\r\n", CCM_ReadReg(BaseAddress, CCM_VERSION));
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xil_printf(" CCM Enable Bit: %1x\r\n", (CCM_ReadReg(BaseAddress, CCM_CONTROL) & CCM_CTL_EN_MASK));
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xil_printf(" CCM Register Update Bit: %1d\r\n", (CCM_ReadReg(BaseAddress, CCM_CONTROL) & CCM_CTL_RUE_MASK) >> 1);
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xil_printf(" CCM Reset Bit: %1d\r\n", (CCM_ReadReg(BaseAddress, CCM_CONTROL) & CCM_RST_RESET) >> 31);
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xil_printf(" CCM AutoReset Bit: %1d\r\n", (CCM_ReadReg(BaseAddress, CCM_CONTROL) & CCM_RST_AUTORESET) >> 30);
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xil_printf(" Active Columns=%d, Active Rows=%d\r\n",
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CCM_ReadReg(BaseAddress, CCM_ACTIVE_SIZE)&0x0000FFFF,
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CCM_ReadReg(BaseAddress, CCM_ACTIVE_SIZE)>>16);
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xil_printf(" [K11=%8x, K12=%8x, K13=%8x ] [ROFFSET=%3d]\r\n",
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CCM_ReadReg(BaseAddress, CCM_K11),
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CCM_ReadReg(BaseAddress, CCM_K12),
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CCM_ReadReg(BaseAddress, CCM_K13),
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CCM_ReadReg(BaseAddress, CCM_ROFFSET));
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xil_printf(" [K21=%8x, K22=%8x, K23=%8x ] [GOFFSET=%3d]\r\n",
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CCM_ReadReg(BaseAddress, CCM_K21),
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CCM_ReadReg(BaseAddress, CCM_K22),
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CCM_ReadReg(BaseAddress, CCM_K23),
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CCM_ReadReg(BaseAddress, CCM_GOFFSET));
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xil_printf(" [K31=%8x, K32=%8x, K33=%8x ] [BOFFSET=%3d]\r\n",
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CCM_ReadReg(BaseAddress, CCM_K31),
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CCM_ReadReg(BaseAddress, CCM_K32),
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CCM_ReadReg(BaseAddress, CCM_K33),
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CCM_ReadReg(BaseAddress, CCM_BOFFSET));
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xil_printf(" [CLIP=%3d, CLAMP=%3d]\r\n",
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CCM_ReadReg(BaseAddress, CCM_CLIP),
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CCM_ReadReg(BaseAddress, CCM_CLAMP));
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}
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/***************************************************************************/
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// Color Correction Matrix Register Update Example
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// This function provides an example of the process used to update
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// the coefficient and offset registers in the CCM 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 VBlank 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 CCM_Update_Example(u32 BaseAddress) {
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//Enable the CCM software enable
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CCM_Enable(BaseAddress);
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//Disable register updates.
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//This is the default operating mode for the CCM core, and allows
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//registers to be updated without effecting the core's behavior.
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CCM_RegUpdateDisable(BaseAddress);
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//Set the coefficients
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// These values are floating point values in the range: [-4.0, 4.0)
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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 [-131072, 131071]
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CCM_WriteReg(BaseAddress, CCM_K11, 32768); //K11 = 1.0
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CCM_WriteReg(BaseAddress, CCM_K12, 32768); //K12 = 1.0
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CCM_WriteReg(BaseAddress, CCM_K13, 32768); //K13 = 1.0
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CCM_WriteReg(BaseAddress, CCM_K21, 32768); //K21 = 1.0
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CCM_WriteReg(BaseAddress, CCM_K22, 32768); //K22 = 1.0
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CCM_WriteReg(BaseAddress, CCM_K23, 32768); //K23 = 1.0
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CCM_WriteReg(BaseAddress, CCM_K31, 32768); //K31 = 1.0
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CCM_WriteReg(BaseAddress, CCM_K32, 32768); //K32 = 1.0
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CCM_WriteReg(BaseAddress, CCM_K33, 32768); //K33 = 1.0
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//Set the offsets
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// For 8-bit color: Valid range = [ -256, 255]
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// For 10-bit color: Valid range = [ -1024, 1023]
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// For 12-bit color: Valid range = [ -4096, 4095]
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// For 16-bit color: Valid range = [-65536, 65535]
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CCM_WriteReg(BaseAddress, CCM_ROFFSET, 5); //ROFFSET = 5
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CCM_WriteReg(BaseAddress, CCM_GOFFSET, 10); //GOFFSET = 10
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CCM_WriteReg(BaseAddress, CCM_BOFFSET, 15); //BOFFSET = 15
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//Set the Clip/Clamp
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// For 8-bit color: Valid range = [0, 255]
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// For 10-bit color: Valid range = [0, 1023]
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// For 12-bit color: Valid range = [0, 4095]
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// For 16-bit color: Valid range = [0, 65535]
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CCM_WriteReg(BaseAddress, CCM_CLIP, 240); //CLIP = 240
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CCM_WriteReg(BaseAddress, CCM_CLAMP, 16); //CLAMP = 16
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//Enable register updates.
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//This mode will cause the coefficient and offset registers internally
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//to the CCM core to automatically be updated on the next SOF.
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CCM_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 CCM 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 CCM core
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report_ccm_settings(XPAR_CCM_0_BASEADDR);
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// Call the CCM example, specify the Device ID generated in xparameters.h
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CCM_Update_Example(XPAR_CCM_0_BASEADDR);
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return 0;
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}
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