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Add new demo files.
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261
Demo/CORTEX_AT91SAM3U256_IAR/AT91Lib/peripherals/isi/isi.c
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261
Demo/CORTEX_AT91SAM3U256_IAR/AT91Lib/peripherals/isi/isi.c
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@ -0,0 +1,261 @@
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/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2008, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* - Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the disclaimer below.
|
||||
*
|
||||
* Atmel's name may not be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
|
||||
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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//------------------------------------------------------------------------------
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/// \unit
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///
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/// !Purpose
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///
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/// Image Sensor Interface (ISI) driver
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///
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/// !Usage
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///
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/// Explanation on the usage of the code made available through the header file.
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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// Headers
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//------------------------------------------------------------------------------
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#include <board.h>
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#include <utility/trace.h>
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#include <utility/video.h>
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#include "isi.h"
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#if !defined (BOARD_ISI_V200)
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//-----------------------------------------------------------------------------
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/// Enable ISI
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//-----------------------------------------------------------------------------
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void ISI_Enable(void)
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{
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AT91C_BASE_ISI->ISI_CR1 &= ~AT91C_ISI_DIS;
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}
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//-----------------------------------------------------------------------------
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/// Disable ISI
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//-----------------------------------------------------------------------------
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void ISI_Disable(void)
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{
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AT91C_BASE_ISI->ISI_CR1 |= AT91C_ISI_DIS;
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}
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//-----------------------------------------------------------------------------
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/// Enable ISI interrupt
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/// \param flag of interrupt to enable
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//-----------------------------------------------------------------------------
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void ISI_EnableInterrupt(unsigned int flag)
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{
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AT91C_BASE_ISI->ISI_IER = flag;
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}
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//-----------------------------------------------------------------------------
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/// Disable ISI interrupt
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/// \param flag of interrupt to disable
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//-----------------------------------------------------------------------------
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void ISI_DisableInterrupt(unsigned int flag)
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{
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AT91C_BASE_ISI->ISI_IDR = flag;
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}
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//-----------------------------------------------------------------------------
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/// Return ISI status register
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/// \return Status of ISI register
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//-----------------------------------------------------------------------------
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unsigned int ISI_StatusRegister(void)
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{
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return(AT91C_BASE_ISI->ISI_SR);
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}
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//-----------------------------------------------------------------------------
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/// Enable Codec path for capture next frame
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//-----------------------------------------------------------------------------
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void ISI_CodecPathFull(void)
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{
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// The codec path is enabled and the next frame is captured.
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// Both codec and preview datapaths are working simultaneously
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AT91C_BASE_ISI->ISI_CR1 |= AT91C_ISI_CODEC_ON | AT91C_ISI_FULL;
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}
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//-----------------------------------------------------------------------------
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/// Set frame rate
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/// \param frate frame rate capture
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/// \return
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//-----------------------------------------------------------------------------
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void ISI_SetFrame(unsigned int frate)
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{
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if( frate > 7 ) {
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TRACE_ERROR("FRate too big\n\r");
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frate = 7;
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}
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AT91C_BASE_ISI->ISI_CR1 |= ((frate<<8) & AT91C_ISI_FRATE);
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}
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//-----------------------------------------------------------------------------
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/// Get the number of byte per pixels
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/// \param bmpRgb BMP type can be YUV or RGB
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/// \return Number of byte for one pixel
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//-----------------------------------------------------------------------------
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unsigned char ISI_BytesForOnePixel(unsigned char bmpRgb)
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{
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unsigned char nbByte_Pixel;
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if (bmpRgb == RGB) {
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if ((AT91C_BASE_ISI->ISI_CR2 & AT91C_ISI_RGB_MODE) == AT91C_ISI_RGB_MODE_RGB_565){
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// RGB: 5:6:5 16bits/pixels
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nbByte_Pixel = 2;
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}
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else {
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// RGB: 8:8:8 24bits/pixels
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nbByte_Pixel = 3;
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}
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}
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else {
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// YUV: 2 pixels for 4 bytes
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nbByte_Pixel = 2;
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}
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return nbByte_Pixel;
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}
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//-----------------------------------------------------------------------------
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/// Reset ISI
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//-----------------------------------------------------------------------------
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void ISI_Reset(void)
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{
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unsigned int timeout=0;
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// Resets the image sensor interface.
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// Finish capturing the current frame and then shut down the module.
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AT91C_BASE_ISI->ISI_CR1 = AT91C_ISI_RST | AT91C_ISI_DIS;
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// wait Software reset has completed successfully.
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while( (!(volatile int)AT91C_BASE_ISI->ISI_SR & AT91C_ISI_SOFTRST)
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&& (timeout < 0x5000) ){
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timeout++;
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}
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if( timeout == 0x5000 ) {
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TRACE_ERROR("ISI-Reset timeout\n\r");
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}
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}
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//-----------------------------------------------------------------------------
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/// ISI initialize with the pVideo parameters.
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/// By default, put ISI in RGB mode 565, YCC mode 3, different value for
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/// Color Space Conversion Matrix Coefficient
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/// \param pVideo structure of video driver
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//-----------------------------------------------------------------------------
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void ISI_Init(AT91PS_VIDEO pVideo)
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{
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ISI_Reset();
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// AT91C_ISI_HSYNC_POL Horizontal synchronisation polarity
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// AT91C_ISI_VSYNC_POL Vertical synchronisation polarity
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// AT91C_ISI_PIXCLK_POL Pixel Clock Polarity
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// SLD pixel clock periods to wait before the beginning of a line.
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// SFD lines are skipped at the beginning of the frame.
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AT91C_BASE_ISI->ISI_CR1 |= ((pVideo->Hblank << 16) & AT91C_ISI_SLD)
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+ ((pVideo->Vblank << 24) & AT91C_ISI_SFD);
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TRACE_DEBUG("ISI_CR1=0x%X\n\r", AT91C_BASE_ISI->ISI_CR1);
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// IM_VSIZE: Vertical size of the Image sensor [0..2047]
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// Vertical size = IM_VSIZE + 1
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// IM_HSIZE: Horizontal size of the Image sensor [0..2047]
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// Horizontal size = IM_HSIZE + 1
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// YCC_SWAP : YCC image data
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AT91C_BASE_ISI->ISI_CR2 = ((pVideo->codec_vsize-1) & AT91C_ISI_IM_VSIZE)
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+ (((pVideo->codec_hsize-1) << 16) & AT91C_ISI_IM_HSIZE)
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+ AT91C_ISI_YCC_SWAP_YCC_MODE2;
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if (pVideo->rgb_or_yuv == RGB) {
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AT91C_BASE_ISI->ISI_CR2 |= AT91C_ISI_COL_SPACE | AT91C_ISI_RGB_MODE_RGB_565
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| AT91C_ISI_RGB_CFG_RGB_DEFAULT;
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}
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else {
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// AT91C_BASE_HISI->ISI_CR2 &= ~AT91C_ISI_COL_SPACE;
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}
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TRACE_DEBUG("ISI_CR2=0x%X\n\r", AT91C_BASE_ISI->ISI_CR2);
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// Vertical Preview size = PREV_VSIZE + 1 (480 max only in RGB mode).
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// Horizontal Preview size = PREV_HSIZE + 1 (640 max only in RGB mode).
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#if defined (AT91C_ID_LCDC)
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if( (pVideo->lcd_vsize > 480) || (pVideo->lcd_hsize > 640)) {
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TRACE_ERROR("Size LCD bad define\n\r");
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AT91C_BASE_ISI->ISI_PSIZE = ((BOARD_LCD_HEIGHT-1) & AT91C_ISI_PREV_VSIZE)
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+ (((BOARD_LCD_WIDTH-1) << 16) & AT91C_ISI_PREV_HSIZE);
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}
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else {
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AT91C_BASE_ISI->ISI_PSIZE = ((pVideo->lcd_vsize -1) & AT91C_ISI_PREV_VSIZE)
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+ (((pVideo->lcd_hsize -1) << 16) & AT91C_ISI_PREV_HSIZE);
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}
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#endif
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// DEC_FACTOR is 8-bit width, range is from 16 to 255.
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// Values from 0 to 16 do not perform any decimation.
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AT91C_BASE_ISI->ISI_PDECF = (16 * pVideo->codec_hsize) / pVideo->lcd_hsize;
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TRACE_DEBUG("codec_hsize: %d\n\r", pVideo->codec_hsize);
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TRACE_DEBUG("lcd_hsize: %d\n\r", pVideo->lcd_hsize);
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TRACE_DEBUG("ISI_PDECF: %d\n\r", AT91C_BASE_ISI->ISI_PDECF);
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if( AT91C_BASE_ISI->ISI_PDECF <16) {
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TRACE_ERROR("ISI_PDECF, forbidden value: %d\n\r", AT91C_BASE_ISI->ISI_PDECF);
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AT91C_BASE_ISI->ISI_PDECF = 16;
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}
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// Written with the address of the start of the preview frame buffer queue,
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// reads as a pointer to the current buffer being used.
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// The frame buffer is forced to word alignment.
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AT91C_BASE_ISI->ISI_PPFBD = pVideo->Isi_fbd_base;
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// This register contains codec datapath start address of buffer location.
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// CODEC_DMA_ADDR: Base address for codec DMA
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AT91C_BASE_ISI->ISI_CDBA = pVideo->codec_fb_addr;
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// C0: Color Space Conversion Matrix Coefficient C0
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// C1: Color Space Conversion Matrix Coefficient C1
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// C2: Color Space Conversion Matrix Coefficient C2
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// C3: Color Space Conversion Matrix Coefficient C3
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AT91C_BASE_ISI->ISI_Y2RSET0 = ( (0x95<< 0) & AT91C_ISI_Y2R_C0)
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+ ( (0xFF<< 8) & AT91C_ISI_Y2R_C1)
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+ ( (0x68<<16) & AT91C_ISI_Y2R_C2)
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+ ( (0x32<<24) & AT91C_ISI_Y2R_C3);
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// C4: Color Space Conversion Matrix coefficient C4
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// Yoff: Color Space Conversion Luminance 128 offset
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// Croff: Color Space Conversion Red Chrominance 16 offset
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// Cboff: Color Space Conversion Blue Chrominance 16 offset
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AT91C_BASE_ISI->ISI_Y2RSET1 = ( (0xCC<< 0) & AT91C_ISI_Y2R_C4)
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+ ( AT91C_ISI_Y2R_YOFF_128)
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+ ( AT91C_ISI_Y2R_CROFF_16)
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+ ( AT91C_ISI_Y2R_CBOFF_16);
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}
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#endif // !defined (BOARD_ISI_V200)
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99
Demo/CORTEX_AT91SAM3U256_IAR/AT91Lib/peripherals/isi/isi.h
Normal file
99
Demo/CORTEX_AT91SAM3U256_IAR/AT91Lib/peripherals/isi/isi.h
Normal file
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@ -0,0 +1,99 @@
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/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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||||
* ----------------------------------------------------------------------------
|
||||
* Copyright (c) 2008, Atmel Corporation
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*
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||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* - Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the disclaimer below.
|
||||
*
|
||||
* Atmel's name may not be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
|
||||
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
||||
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
* ----------------------------------------------------------------------------
|
||||
*/
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//------------------------------------------------------------------------------
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/// \unit
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///
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/// !Purpose
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///
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/// Interface for configuration the Image Sensor Interface (ISI) peripheral.
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///
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/// !Usage
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///
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/// -# ISI_Init: initialize ISI with default parameters
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/// -# ISI_EnableInterrupt: enable one or more interrupts
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/// -# ISI_DisableInterrupt: disable one or more interrupts
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/// -# ISI_Enable: enable isi module
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/// -# ISI_Disable: disable isi module
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/// -# ISI_CodecPathFull: enable codec path
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/// -# ISI_SetFrame: set frame rate
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/// -# ISI_BytesForOnePixel: return number of byte for one pixel
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/// -# ISI_StatusRegister: return ISI status register
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/// -# ISI_Reset: make a software reset
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//------------------------------------------------------------------------------
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#ifndef ISI_H
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#define ISI_H
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//------------------------------------------------------------------------------
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// Types
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//------------------------------------------------------------------------------
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/// ISI descriptors
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typedef struct
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{
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/// Current LCD index, used with AT91C_ISI_MAX_PREV_BUFFER
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unsigned int CurrentLcdIndex;
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/// set if Fifo Codec Empty is present
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volatile unsigned int DisplayCodec;
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/// upgrade for each Fifo Codec Overflow (statistics use)
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unsigned int nb_codec_ovf;
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/// upgrade for each Fifo Preview Overflow (statistics use)
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unsigned int nb_prev_ovf;
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}ISI_Descriptors;
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/// Frame Buffer Descriptors
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typedef struct
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{
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/// Address of the Current FrameBuffer
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unsigned int Current;
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#if defined (BOARD_ISI_V200)
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/// Address of the Control
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unsigned int Control;
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#endif
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/// Address of the Next FrameBuffer
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unsigned int Next;
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}ISI_FrameBufferDescriptors;
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//------------------------------------------------------------------------------
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// Exported functions
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//------------------------------------------------------------------------------
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extern void ISI_Enable(void);
|
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extern void ISI_Disable(void);
|
||||
extern void ISI_EnableInterrupt(unsigned int flag);
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extern void ISI_DisableInterrupt(unsigned int flag);
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extern void ISI_CodecPathFull(void);
|
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extern void ISI_SetFrame(unsigned int frate);
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extern unsigned char ISI_BytesForOnePixel(unsigned char bmpRgb);
|
||||
extern void ISI_Reset(void);
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extern void ISI_Init(AT91PS_VIDEO pVideo);
|
||||
extern unsigned int ISI_StatusRegister(void);
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|
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#endif //#ifndef ISI_H
|
||||
|
246
Demo/CORTEX_AT91SAM3U256_IAR/AT91Lib/peripherals/isi/isi2.c
Normal file
246
Demo/CORTEX_AT91SAM3U256_IAR/AT91Lib/peripherals/isi/isi2.c
Normal file
|
@ -0,0 +1,246 @@
|
|||
/* ----------------------------------------------------------------------------
|
||||
* ATMEL Microcontroller Software Support
|
||||
* ----------------------------------------------------------------------------
|
||||
* Copyright (c) 2008, Atmel Corporation
|
||||
*
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions are met:
|
||||
*
|
||||
* - Redistributions of source code must retain the above copyright notice,
|
||||
* this list of conditions and the disclaimer below.
|
||||
*
|
||||
* Atmel's name may not be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
|
||||
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
||||
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
* ----------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
//------------------------------------------------------------------------------
|
||||
// Headers
|
||||
//------------------------------------------------------------------------------
|
||||
|
||||
#include <board.h>
|
||||
#include <utility/trace.h>
|
||||
#include <utility/video.h>
|
||||
#include "isi.h"
|
||||
|
||||
#if defined (BOARD_ISI_V200)
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
/// Enable ISI
|
||||
//-----------------------------------------------------------------------------
|
||||
void ISI_Enable(void)
|
||||
{
|
||||
AT91C_BASE_ISI->ISI_CTRL |= AT91C_ISI_EN_1;
|
||||
while( (AT91C_BASE_ISI->ISI_SR & AT91C_ISI_EN_1)!=AT91C_ISI_EN_1);
|
||||
AT91C_BASE_ISI->ISI_DMACHER |= AT91C_ISI_P_CH_EN_1;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
/// Disable ISI
|
||||
//-----------------------------------------------------------------------------
|
||||
void ISI_Disable(void)
|
||||
{
|
||||
AT91C_BASE_ISI->ISI_CTRL |= AT91C_ISI_DIS_1;
|
||||
AT91C_BASE_ISI->ISI_DMACHDR &= ~AT91C_ISI_P_CH_DIS_1;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
/// Enable ISI interrupt
|
||||
/// \param flag of interrupt to enable
|
||||
//-----------------------------------------------------------------------------
|
||||
void ISI_EnableInterrupt(unsigned int flag)
|
||||
{
|
||||
AT91C_BASE_ISI->ISI_IER = flag;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
/// Disable ISI interrupt
|
||||
/// \param flag of interrupt to disable
|
||||
//-----------------------------------------------------------------------------
|
||||
void ISI_DisableInterrupt(unsigned int flag)
|
||||
{
|
||||
AT91C_BASE_ISI->ISI_IDR = flag;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
/// Return ISI status register
|
||||
/// \return Status of ISI register
|
||||
//-----------------------------------------------------------------------------
|
||||
unsigned int ISI_StatusRegister(void)
|
||||
{
|
||||
return(AT91C_BASE_ISI->ISI_SR);
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
/// Enable Codec path for capture next frame
|
||||
//-----------------------------------------------------------------------------
|
||||
void ISI_CodecPathFull(void)
|
||||
{
|
||||
// The codec path is enabled and the next frame is captured.
|
||||
// Both codec and preview datapaths are working simultaneously
|
||||
AT91C_BASE_ISI->ISI_CTRL |= AT91C_ISI_CDC_1;
|
||||
AT91C_BASE_ISI->ISI_CFG1 |= AT91C_ISI_FULL;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
/// Set frame rate
|
||||
/// \param frate frame rate capture
|
||||
/// \return
|
||||
//-----------------------------------------------------------------------------
|
||||
void ISI_SetFrame(unsigned int frate)
|
||||
{
|
||||
if( frate > 7 ) {
|
||||
TRACE_ERROR("FRate too big\n\r");
|
||||
frate = 7;
|
||||
}
|
||||
AT91C_BASE_ISI->ISI_CFG1 |= ((frate<<8) & AT91C_ISI_FRATE);
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
/// Get the number of byte per pixels
|
||||
/// \param bmpRgb BMP type can be YUV or RGB
|
||||
/// \return Number of byte for one pixel
|
||||
//-----------------------------------------------------------------------------
|
||||
unsigned char ISI_BytesForOnePixel(unsigned char bmpRgb)
|
||||
{
|
||||
unsigned char nbByte_Pixel;
|
||||
|
||||
if (bmpRgb == RGB) {
|
||||
if ((AT91C_BASE_ISI->ISI_CFG2 & AT91C_ISI_RGB_MODE) == AT91C_ISI_RGB_MODE_RGB_565){
|
||||
// RGB: 5:6:5 16bits/pixels
|
||||
nbByte_Pixel = 2;
|
||||
}
|
||||
else {
|
||||
// RGB: 8:8:8 24bits/pixels
|
||||
nbByte_Pixel = 3;
|
||||
}
|
||||
}
|
||||
else {
|
||||
// YUV: 2 pixels for 4 bytes
|
||||
nbByte_Pixel = 2;
|
||||
}
|
||||
return nbByte_Pixel;
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
/// Reset ISI
|
||||
//-----------------------------------------------------------------------------
|
||||
void ISI_Reset(void)
|
||||
{
|
||||
unsigned int timeout=0;
|
||||
|
||||
// Resets the image sensor interface.
|
||||
// Finish capturing the current frame and then shut down the module.
|
||||
AT91C_BASE_ISI->ISI_CTRL = AT91C_ISI_SRST_1 | AT91C_ISI_DIS_1;
|
||||
// wait Software reset has completed successfully.
|
||||
while( (!(volatile int)AT91C_BASE_ISI->ISI_SR & AT91C_ISI_SRST)
|
||||
&& (timeout < 0x5000) ){
|
||||
timeout++;
|
||||
}
|
||||
if( timeout == 0x5000 ) {
|
||||
TRACE_ERROR("ISI-Reset timeout\n\r");
|
||||
}
|
||||
}
|
||||
|
||||
//-----------------------------------------------------------------------------
|
||||
/// ISI initialize
|
||||
/// \param pVideo structure of video driver
|
||||
//-----------------------------------------------------------------------------
|
||||
void ISI_Init(AT91PS_VIDEO pVideo)
|
||||
{
|
||||
ISI_Reset();
|
||||
|
||||
// AT91C_ISI_HSYNC_POL Horizontal synchronisation polarity
|
||||
// AT91C_ISI_VSYNC_POL Vertical synchronisation polarity
|
||||
// AT91C_ISI_PIXCLK_POL Pixel Clock Polarity
|
||||
|
||||
// SLD pixel clock periods to wait before the beginning of a line.
|
||||
// SFD lines are skipped at the beginning of the frame.
|
||||
AT91C_BASE_ISI->ISI_CFG1 |= ((pVideo->Hblank << 16) & AT91C_ISI_SLD)
|
||||
+ ((pVideo->Vblank << 24) & AT91C_ISI_SFD);
|
||||
TRACE_DEBUG("ISI_CFG1=0x%X\n\r", AT91C_BASE_ISI->ISI_CFG1);
|
||||
|
||||
// IM_VSIZE: Vertical size of the Image sensor [0..2047]
|
||||
// Vertical size = IM_VSIZE + 1
|
||||
// IM_HSIZE: Horizontal size of the Image sensor [0..2047]
|
||||
// Horizontal size = IM_HSIZE + 1
|
||||
// YCC_SWAP : YCC image data
|
||||
AT91C_BASE_ISI->ISI_CFG2 = ((pVideo->codec_vsize-1) & AT91C_ISI_IM_VSIZE)
|
||||
+ (((pVideo->codec_hsize-1) << 16) & AT91C_ISI_IM_HSIZE)
|
||||
+ AT91C_ISI_YCC_SWAP_YCC_MODE2;
|
||||
|
||||
if (pVideo->rgb_or_yuv == RGB) {
|
||||
AT91C_BASE_ISI->ISI_CFG2 |= AT91C_ISI_COL_SPACE | AT91C_ISI_RGB_MODE_RGB_565
|
||||
| AT91C_ISI_RGB_CFG_RGB_DEFAULT;
|
||||
}
|
||||
else {
|
||||
// AT91C_BASE_HISI->ISI_CFG2 &= ~AT91C_ISI_COL_SPACE;
|
||||
}
|
||||
TRACE_DEBUG("ISI_CFG2=0x%X\n\r", AT91C_BASE_ISI->ISI_CFG2);
|
||||
|
||||
// Vertical Preview size = PREV_VSIZE + 1 (480 max only in RGB mode).
|
||||
// Horizontal Preview size = PREV_HSIZE + 1 (640 max only in RGB mode).
|
||||
#if defined (AT91C_ID_LCDC)
|
||||
if( (pVideo->lcd_vsize > 480) || (pVideo->lcd_hsize > 640)) {
|
||||
TRACE_ERROR("Size LCD bad define\n\r");
|
||||
AT91C_BASE_ISI->ISI_PSIZE = ((BOARD_LCD_HEIGHT-1) & AT91C_ISI_PREV_VSIZE)
|
||||
+ (((BOARD_LCD_WIDTH-1) << 16) & AT91C_ISI_PREV_HSIZE);
|
||||
}
|
||||
else {
|
||||
|
||||
AT91C_BASE_ISI->ISI_PSIZE = ((pVideo->lcd_vsize -1) & AT91C_ISI_PREV_VSIZE)
|
||||
+ (((pVideo->lcd_hsize -1) << 16) & AT91C_ISI_PREV_HSIZE);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
// DEC_FACTOR is 8-bit width, range is from 16 to 255.
|
||||
// Values from 0 to 16 do not perform any decimation.
|
||||
AT91C_BASE_ISI->ISI_PDECF = (16 * pVideo->codec_hsize) / pVideo->lcd_hsize;
|
||||
|
||||
TRACE_DEBUG("codec_hsize: %d\n\r", pVideo->codec_hsize);
|
||||
TRACE_DEBUG("lcd_hsize: %d\n\r", pVideo->lcd_hsize);
|
||||
TRACE_DEBUG("ISI_PDECF: %d\n\r", AT91C_BASE_ISI->ISI_PDECF);
|
||||
if( AT91C_BASE_ISI->ISI_PDECF <16) {
|
||||
TRACE_ERROR("ISI_PDECF, forbidden value: %d\n\r", AT91C_BASE_ISI->ISI_PDECF);
|
||||
AT91C_BASE_ISI->ISI_PDECF = 16;
|
||||
}
|
||||
|
||||
AT91C_BASE_ISI->ISI_DMAPDSCR = pVideo->Isi_fbd_base;
|
||||
AT91C_BASE_ISI->ISI_DMAPCTRL = AT91C_ISI_P_FETCH_ENABLE;
|
||||
AT91C_BASE_ISI->ISI_DMAPADDR = pVideo->lcd_fb_addr;
|
||||
|
||||
// C0: Color Space Conversion Matrix Coefficient C0
|
||||
// C1: Color Space Conversion Matrix Coefficient C1
|
||||
// C2: Color Space Conversion Matrix Coefficient C2
|
||||
// C3: Color Space Conversion Matrix Coefficient C3
|
||||
AT91C_BASE_ISI->ISI_Y2RSET0 = ( (0x95<< 0) & AT91C_ISI_Y2R_C0)
|
||||
+ ( (0xFF<< 8) & AT91C_ISI_Y2R_C1)
|
||||
+ ( (0x68<<16) & AT91C_ISI_Y2R_C2)
|
||||
+ ( (0x32<<24) & AT91C_ISI_Y2R_C3);
|
||||
|
||||
// C4: Color Space Conversion Matrix coefficient C4
|
||||
// Yoff: Color Space Conversion Luminance 128 offset
|
||||
// Croff: Color Space Conversion Red Chrominance 16 offset
|
||||
// Cboff: Color Space Conversion Blue Chrominance 16 offset
|
||||
AT91C_BASE_ISI->ISI_Y2RSET1 = ( (0xCC<< 0) & AT91C_ISI_Y2R_C4)
|
||||
+ ( AT91C_ISI_Y2R_YOFF_128)
|
||||
+ ( AT91C_ISI_Y2R_CROFF_16)
|
||||
+ ( AT91C_ISI_Y2R_CBOFF_16);
|
||||
}
|
||||
|
||||
#endif // defined (BOARD_ISI_V200)
|
||||
|
Loading…
Add table
Add a link
Reference in a new issue