diff options
Diffstat (limited to 'components/omnivision/ov2640/ov2640.c')
| -rw-r--r-- | components/omnivision/ov2640/ov2640.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/components/omnivision/ov2640/ov2640.c b/components/omnivision/ov2640/ov2640.c new file mode 100644 index 0000000..ccb10e2 --- /dev/null +++ b/components/omnivision/ov2640/ov2640.c @@ -0,0 +1,143 @@ +// ----------------------------------------------------------------------------
+// ATMEL Microcontroller Software Support - ROUSSET -
+// ----------------------------------------------------------------------------
+// Copyright (c) 2009, 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.
+// ----------------------------------------------------------------------------
+
+#include <board.h>
+
+#if defined(BOARD_CAPTOR_OV2640)
+
+//------------------------------------------------------------------------------
+/// \unit
+///
+/// !!!Purpose
+///
+/// Specific configuration for Omnivision OV2640 captor
+///
+/// !!!Usage
+///
+/// -# Different files are been provided by Omnivision:
+/// - 2640_yuv_cif.h
+/// - 2640_yuv_qcif.h
+/// - 2640_yuv_qqcif.h
+/// - 2640_yuv_qqvga.h
+/// - 2640_yuv_qvga.h
+/// - 2640_yuv_sxga.h
+/// - 2640_yuv_vga.h
+/// -# Configure the captor using theses files
+//--------------------------------------------------------------------------
+
+
+//-----------------------------------------------------------------------------
+// Headers
+//-----------------------------------------------------------------------------
+#include <drivers/twi/twid.h>
+#include <utility/trace.h>
+
+#include <omnivision/omnivision.h>
+
+#include "2640_yuv_cif.h"
+#include "2640_yuv_qvga.h"
+#include "2640_yuv_sxga.h"
+#include "2640_yuv_vga.h"
+
+//------------------------------------------------------------------------------
+/// Array of image sizes supported by OV264x
+//------------------------------------------------------------------------------
+const static struct capture_size ov264x_sizes[] = {
+// {width, height}
+ /// QVGA
+ { 320, 240 },
+ /// CIF
+ { 352, 288 },
+ /// VGA
+ { 640, 480 },
+ /// SXGA
+ {1280, 1024 }
+};
+
+//------------------------------------------------------------------------------
+// Global Functions
+//------------------------------------------------------------------------------
+
+//-----------------------------------------------------------------------------
+/// Configure the OV9650 for a specified image size, pixel format,
+/// and frame period.
+//-----------------------------------------------------------------------------
+void ov_configure(Twid *pTwid, unsigned int width, unsigned int heigth)
+{
+ const struct ov_reg *reg_conf;
+ unsigned char goodCaptureSize = 0;
+ unsigned char i;
+
+ TRACE_DEBUG("ov264x_configure\n\r");
+ for( i=0; i<sizeof(ov264x_sizes); i++ ) {
+ if( ov264x_sizes[i].width == width ) {
+ if( ov264x_sizes[i].height != heigth ) {
+ TRACE_ERROR("ov264x_configure vsize not define\n\r");
+ }
+ else {
+ goodCaptureSize = 1;
+ break;
+ }
+ }
+ }
+
+ if( goodCaptureSize == 0 ) {
+ TRACE_ERROR("Problem size\n\r");
+ while(1);
+ return;
+ }
+
+ // Default value
+ reg_conf = ov2640_yuv_vga;
+
+ // common register initialization
+ switch(width) {
+ case 1280: //SXGA
+ TRACE_DEBUG("SXGA\n\r");
+ reg_conf = ov2640_yuv_sxga;
+ break;
+ case 640: //VGA
+ TRACE_DEBUG("VGA\n\r");
+ reg_conf = ov2640_yuv_vga;
+ break;
+ case 352: //CIF
+ TRACE_DEBUG("CIF\n\r");
+ reg_conf = ov2640_yuv_cif;
+ break;
+ case 320: //QVGA
+ TRACE_DEBUG("QVGA\n\r");
+ reg_conf = ov2640_yuv_qvga;
+ break;
+
+ default:
+ TRACE_DEBUG("ov264x_configure problem\n\r");
+ break;
+ }
+ ov_write_regs(pTwid, reg_conf);
+}
+#endif
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