347 lines
16 KiB
C
Executable file
347 lines
16 KiB
C
Executable file
/******************************************************************************
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* (c) Copyright 2010 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 Gamma Correction (Gamma)
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* driver of the Xilinx Gamma Correction v3.0 core. This code does not
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* cover the Gamma v3.0 setup and any other configuration which might be
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* required to get the Gamma 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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* 3.00a jo 07/20/09 First release
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* 3.00a gz 07/27/09 Adapted for gamma
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* </pre>
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*
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* ***************************************************************************
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*/
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#include "gamma.h"
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#include "xparameters.h"
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static unsigned char gamma_tables[5*256] = {
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// linear table
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0, 1, 2, 3, 4, 5, 6, 7,
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8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23,
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24, 25, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39,
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40, 41, 42, 43, 44, 45, 46, 47,
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48, 49, 50, 51, 52, 53, 54, 55,
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56, 57, 58, 59, 60, 61, 62, 63,
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64, 65, 66, 67, 68, 69, 70, 71,
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72, 73, 74, 75, 76, 77, 78, 79,
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80, 81, 82, 83, 84, 85, 86, 87,
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88, 89, 90, 91, 92, 93, 94, 95,
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96, 97, 98, 99, 100, 101, 102, 103,
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104, 105, 106, 107, 108, 109, 110, 111,
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112, 113, 114, 115, 116, 117, 118, 119,
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120, 121, 122, 123, 124, 125, 126, 127,
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128, 129, 130, 131, 132, 133, 134, 135,
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136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151,
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152, 153, 154, 155, 156, 157, 158, 159,
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160, 161, 162, 163, 164, 165, 166, 167,
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168, 169, 170, 171, 172, 173, 174, 175,
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176, 177, 178, 179, 180, 181, 182, 183,
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184, 185, 186, 187, 188, 189, 190, 191,
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192, 193, 194, 195, 196, 197, 198, 199,
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200, 201, 202, 203, 204, 205, 206, 207,
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208, 209, 210, 211, 212, 213, 214, 215,
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216, 217, 218, 219, 220, 221, 222, 223,
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224, 225, 226, 227, 228, 229, 230, 231,
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232, 233, 234, 235, 236, 237, 238, 239,
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240, 241, 242, 243, 244, 245, 246, 247,
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248, 249, 250, 251, 252, 253, 254, 255,
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// gamma = 1/2.2
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0, 21, 28, 34, 39, 43, 46, 50,
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53, 56, 59, 61, 64, 66, 68, 70,
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72, 74, 76, 78, 80, 82, 84, 85,
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87, 89, 90, 92, 93, 95, 96, 98,
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99, 101, 102, 103, 105, 106, 107, 109,
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110, 111, 112, 114, 115, 116, 117, 118,
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119, 120, 122, 123, 124, 125, 126, 127,
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128, 129, 130, 131, 132, 133, 134, 135,
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136, 137, 138, 139, 140, 141, 142, 143,
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144, 144, 145, 146, 147, 148, 149, 150,
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151, 151, 152, 153, 154, 155, 156, 156,
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157, 158, 159, 160, 160, 161, 162, 163,
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164, 164, 165, 166, 167, 167, 168, 169,
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170, 170, 171, 172, 173, 173, 174, 175,
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175, 176, 177, 178, 178, 179, 180, 180,
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181, 182, 182, 183, 184, 184, 185, 186,
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186, 187, 188, 188, 189, 190, 190, 191,
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192, 192, 193, 194, 194, 195, 195, 196,
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197, 197, 198, 199, 199, 200, 200, 201,
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202, 202, 203, 203, 204, 205, 205, 206,
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206, 207, 207, 208, 209, 209, 210, 210,
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211, 212, 212, 213, 213, 214, 214, 215,
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215, 216, 217, 217, 218, 218, 219, 219,
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220, 220, 221, 221, 222, 223, 223, 224,
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224, 225, 225, 226, 226, 227, 227, 228,
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228, 229, 229, 230, 230, 231, 231, 232,
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232, 233, 233, 234, 234, 235, 235, 236,
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236, 237, 237, 238, 238, 239, 239, 240,
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240, 241, 241, 242, 242, 243, 243, 244,
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244, 245, 245, 246, 246, 247, 247, 248,
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248, 249, 249, 249, 250, 250, 251, 251,
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252, 252, 253, 253, 254, 254, 255, 255,
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// gamma = 1/1.6
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0, 8, 12, 16, 19, 22, 24, 27,
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29, 32, 34, 36, 38, 40, 42, 43,
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45, 47, 49, 50, 52, 54, 55, 57,
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58, 60, 61, 63, 64, 66, 67, 68,
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70, 71, 72, 74, 75, 76, 78, 79,
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80, 81, 83, 84, 85, 86, 87, 89,
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90, 91, 92, 93, 94, 96, 97, 98,
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99, 100, 101, 102, 103, 104, 105, 106,
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107, 109, 110, 111, 112, 113, 114, 115,
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116, 117, 118, 119, 120, 121, 122, 123,
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124, 125, 125, 126, 127, 128, 129, 130,
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131, 132, 133, 134, 135, 136, 137, 138,
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138, 139, 140, 141, 142, 143, 144, 145,
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146, 146, 147, 148, 149, 150, 151, 152,
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152, 153, 154, 155, 156, 157, 158, 158,
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159, 160, 161, 162, 162, 163, 164, 165,
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166, 167, 167, 168, 169, 170, 171, 171,
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172, 173, 174, 175, 175, 176, 177, 178,
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178, 179, 180, 181, 181, 182, 183, 184,
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185, 185, 186, 187, 188, 188, 189, 190,
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191, 191, 192, 193, 194, 194, 195, 196,
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196, 197, 198, 199, 199, 200, 201, 202,
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202, 203, 204, 204, 205, 206, 207, 207,
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208, 209, 209, 210, 211, 211, 212, 213,
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214, 214, 215, 216, 216, 217, 218, 218,
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219, 220, 220, 221, 222, 222, 223, 224,
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225, 225, 226, 227, 227, 228, 229, 229,
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230, 231, 231, 232, 233, 233, 234, 235,
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235, 236, 236, 237, 238, 238, 239, 240,
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240, 241, 242, 242, 243, 244, 244, 245,
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246, 246, 247, 247, 248, 249, 249, 250,
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251, 251, 252, 252, 253, 254, 254, 255,
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// gamma = 1.6
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0, 0, 0, 0, 0, 0, 1, 1,
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1, 1, 1, 2, 2, 2, 2, 3,
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3, 3, 4, 4, 4, 5, 5, 5,
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6, 6, 7, 7, 7, 8, 8, 9,
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9, 10, 10, 11, 11, 12, 12, 13,
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13, 14, 14, 15, 15, 16, 16, 17,
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18, 18, 19, 19, 20, 21, 21, 22,
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23, 23, 24, 25, 25, 26, 27, 27,
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28, 29, 29, 30, 31, 31, 32, 33,
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34, 34, 35, 36, 37, 38, 38, 39,
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40, 41, 42, 42, 43, 44, 45, 46,
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46, 47, 48, 49, 50, 51, 52, 53,
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53, 54, 55, 56, 57, 58, 59, 60,
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61, 62, 63, 64, 64, 65, 66, 67,
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68, 69, 70, 71, 72, 73, 74, 75,
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76, 77, 78, 79, 80, 81, 83, 84,
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85, 86, 87, 88, 89, 90, 91, 92,
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93, 94, 95, 97, 98, 99, 100, 101,
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102, 103, 104, 106, 107, 108, 109, 110,
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111, 113, 114, 115, 116, 117, 119, 120,
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121, 122, 123, 125, 126, 127, 128, 130,
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131, 132, 133, 135, 136, 137, 138, 140,
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141, 142, 143, 145, 146, 147, 149, 150,
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151, 153, 154, 155, 157, 158, 159, 161,
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162, 163, 165, 166, 167, 169, 170, 171,
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173, 174, 176, 177, 178, 180, 181, 183,
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184, 185, 187, 188, 190, 191, 193, 194,
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196, 197, 198, 200, 201, 203, 204, 206,
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207, 209, 210, 212, 213, 215, 216, 218,
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219, 221, 222, 224, 225, 227, 228, 230,
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231, 233, 235, 236, 238, 239, 241, 242,
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244, 245, 247, 249, 250, 252, 253, 255,
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// gamma = 2.2
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 1,
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1, 1, 1, 1, 1, 1, 1, 1,
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1, 2, 2, 2, 2, 2, 2, 2,
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3, 3, 3, 3, 3, 4, 4, 4,
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4, 5, 5, 5, 5, 6, 6, 6,
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6, 7, 7, 7, 8, 8, 8, 9,
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9, 9, 10, 10, 11, 11, 11, 12,
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12, 13, 13, 13, 14, 14, 15, 15,
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16, 16, 17, 17, 18, 18, 19, 19,
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20, 20, 21, 22, 22, 23, 23, 24,
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25, 25, 26, 26, 27, 28, 28, 29,
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30, 30, 31, 32, 33, 33, 34, 35,
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35, 36, 37, 38, 39, 39, 40, 41,
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42, 43, 43, 44, 45, 46, 47, 48,
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49, 49, 50, 51, 52, 53, 54, 55,
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56, 57, 58, 59, 60, 61, 62, 63,
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64, 65, 66, 67, 68, 69, 70, 71,
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73, 74, 75, 76, 77, 78, 79, 81,
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82, 83, 84, 85, 87, 88, 89, 90,
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91, 93, 94, 95, 97, 98, 99, 100,
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102, 103, 105, 106, 107, 109, 110, 111,
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113, 114, 116, 117, 119, 120, 121, 123,
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124, 126, 127, 129, 130, 132, 133, 135,
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137, 138, 140, 141, 143, 145, 146, 148,
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149, 151, 153, 154, 156, 158, 159, 161,
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163, 165, 166, 168, 170, 172, 173, 175,
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177, 179, 181, 182, 184, 186, 188, 190,
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192, 194, 196, 197, 199, 201, 203, 205,
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207, 209, 211, 213, 215, 217, 219, 221,
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223, 225, 227, 229, 231, 234, 236, 238,
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240, 242, 244, 246, 248, 251, 253, 255
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};
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unsigned char gamma_names[5][24] = {
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"Linear Table ",
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"Compression Table 1/1.6",
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"Compression Table 1/2.2",
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"Expansion Table 1.6 ",
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"Expansion Table 2.2 "};
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unsigned char gamma_table_value(int TABLE_ID, int addr)
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{
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return( gamma_tables[(TABLE_ID<<8)+(addr & 255)] );
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}
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unsigned char* gamma_table_name(int TABLE_ID)
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{
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return( gamma_names[TABLE_ID<<8] );
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}
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/***************************************************************************/
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// Gamma Correction 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 Gamma core.
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/***************************************************************************/
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void report_gamma_settings(u32 BaseAddress) {
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u32 size, cols, rows;
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xil_printf("Gamma Correction Core Configuration:\r\n");
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xil_printf(" Gamma Enable Bit: %1d\r\n", GAMMA_ReadReg(BaseAddress, GAMMA_CONTROL) & GAMMA_CTL_EN_MASK);
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xil_printf(" Gamma Register Update Bit: %1d\r\n", (GAMMA_ReadReg(BaseAddress, GAMMA_CONTROL) & GAMMA_CTL_RUE_MASK) >> 1);
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xil_printf(" Gamma Reset Bit: %1d\r\n", (GAMMA_ReadReg(BaseAddress, GAMMA_CONTROL) & GAMMA_RST_RESET) >> 31);
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xil_printf(" Gamma AutoReset Bit: %1d\r\n", (GAMMA_ReadReg(BaseAddress, GAMMA_CONTROL) & GAMMA_RST_AUTORESET) >> 30);
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xil_printf(" Gamma Status: 0x%08x \r\n", GAMMA_ReadReg(BaseAddress, GAMMA_STATUS));
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xil_printf(" Gamma Version: 0x%8x\r\n", GAMMA_ReadReg(BaseAddress, GAMMA_VERSION));
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size = GAMMA_ReadReg(BaseAddress, GAMMA_ACTIVE_SIZE);
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cols = size & 0xffff;
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rows = (size>>16) & 0xffff;
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xil_printf(" Gamma Frame Size: Columns = %d, Rows = %d\r\n",cols,rows);
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}
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/***************************************************************************/
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// Gamma Correction 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 Gamma 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 GAMMA_Update_Example(u32 BaseAddress, u32 IWIDTH, u32 OWIDTH, u32 INTPOL, u32 LUTS) {
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u32 i, addr, data;
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u32 LutDepth;
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const u32 GAMMA_TABLE_ID = 3; // gamma = 1.6
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GAMMA_Enable(BaseAddress); //Enable the Gamma software enable
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LutDepth = (IWIDTH == 12 && INTPOL ==1) ? 1024 : 1<<IWIDTH;
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GAMMA_RegUpdateDisable(BaseAddress); //Disable register updates.
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//This is the default operating mode for the Gamma core, and allows
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//registers to be updated without effecting the core's behavior.
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//Download Gamma Tables
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for(i=0; i<LutDepth; i++) {
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addr = i>>(IWIDTH-8);
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data = gamma_tables[i+GAMMA_TABLE_ID*256] * (1<<(OWIDTH-8));
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GAMMA_WriteReg(BaseAddress, GAMMA_ADDR_DATA, (addr << 16) + data );
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if (LUTS > 1) {
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addr += LutDepth;
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GAMMA_WriteReg(BaseAddress, GAMMA_ADDR_DATA, (addr << 16) + data );
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}
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if (LUTS > 2) {
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addr += LutDepth;
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GAMMA_WriteReg(BaseAddress, GAMMA_ADDR_DATA, (addr << 16) + data );
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}
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}
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GAMMA_WriteReg(BaseAddress, GAMMA_TABLE_UPDATE, 1);
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xil_printf("Gamma initialized with %s\r\n", gamma_names[GAMMA_TABLE_ID]);
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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 Gamma core to automatically be updated on the next SOF.
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GAMMA_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 Gamma example.
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//
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/*****************************************************************************/
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//int gamma_example(void)
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int main(void)
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{
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// Print the current settings for the Gamma core
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report_gamma_settings(XPAR_GAMMA_0_BASEADDR);
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// Call the Gamma example, specify the Device ID generated in xparameters.h
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GAMMA_Update_Example(XPAR_GAMMA_0_BASEADDR,XPAR_GAMMA_0_S_AXIS_VIDEO_DATA_WIDTH, XPAR_GAMMA_0_M_AXIS_VIDEO_DATA_WIDTH, XPAR_GAMMA_0_INTPOL, XPAR_GAMMA_0_LUTS);
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return 0;
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}
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