diff options
author | Naushir Patuck <naush@raspberrypi.com> | 2023-05-03 13:20:27 +0100 |
---|---|---|
committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2023-05-04 20:47:40 +0300 |
commit | 726e9274ea95fa46352556d340c5793a8da51fcd (patch) | |
tree | 80f6adcdbf744f9317e09eff3e80c602b384a753 /src/ipa/raspberrypi/md_parser_smia.cpp | |
parent | 46aefed208fef4bc8d6f6e8882b92b9af710a60b (diff) |
pipeline: ipa: raspberrypi: Refactor and move the Raspberry Pi code
Split the Raspberry Pi pipeline handler and IPA source code into common
and VC4/BCM2835 specific file structures.
For the pipeline handler, the common code files now live in
src/libcamera/pipeline/rpi/common/
and the VC4-specific files in src/libcamera/pipeline/rpi/vc4/.
For the IPA, the common code files now live in
src/ipa/rpi/{cam_helper,controller}/
and the vc4 specific files in src/ipa/rpi/vc4/. With this change, the
camera tuning files are now installed under share/libcamera/ipa/rpi/vc4/.
To build the pipeline and IPA, the meson configuration options have now
changed from "raspberrypi" to "rpi/vc4":
meson setup build -Dipas=rpi/vc4 -Dpipelines=rpi/vc4
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'src/ipa/raspberrypi/md_parser_smia.cpp')
-rw-r--r-- | src/ipa/raspberrypi/md_parser_smia.cpp | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/src/ipa/raspberrypi/md_parser_smia.cpp b/src/ipa/raspberrypi/md_parser_smia.cpp deleted file mode 100644 index 210787ed..00000000 --- a/src/ipa/raspberrypi/md_parser_smia.cpp +++ /dev/null @@ -1,149 +0,0 @@ -/* SPDX-License-Identifier: BSD-2-Clause */ -/* - * Copyright (C) 2019-2021, Raspberry Pi Ltd - * - * md_parser_smia.cpp - SMIA specification based embedded data parser - */ - -#include <libcamera/base/log.h> -#include "md_parser.h" - -using namespace RPiController; -using namespace libcamera; - -/* - * This function goes through the embedded data to find the offsets (not - * values!), in the data block, where the values of the given registers can - * subsequently be found. - * - * Embedded data tag bytes, from Sony IMX219 datasheet but general to all SMIA - * sensors, I think. - */ - -constexpr unsigned int LineStart = 0x0a; -constexpr unsigned int LineEndTag = 0x07; -constexpr unsigned int RegHiBits = 0xaa; -constexpr unsigned int RegLowBits = 0xa5; -constexpr unsigned int RegValue = 0x5a; -constexpr unsigned int RegSkip = 0x55; - -MdParserSmia::MdParserSmia(std::initializer_list<uint32_t> registerList) -{ - for (auto r : registerList) - offsets_[r] = {}; -} - -MdParser::Status MdParserSmia::parse(libcamera::Span<const uint8_t> buffer, - RegisterMap ®isters) -{ - if (reset_) { - /* - * Search again through the metadata for all the registers - * requested. - */ - ASSERT(bitsPerPixel_); - - for (const auto &kv : offsets_) - offsets_[kv.first] = {}; - - ParseStatus ret = findRegs(buffer); - /* - * > 0 means "worked partially but parse again next time", - * < 0 means "hard error". - * - * In either case, we retry parsing on the next frame. - */ - if (ret != ParseOk) - return ERROR; - - reset_ = false; - } - - /* Populate the register values requested. */ - registers.clear(); - for (const auto &[reg, offset] : offsets_) { - if (!offset) { - reset_ = true; - return NOTFOUND; - } - registers[reg] = buffer[offset.value()]; - } - - return OK; -} - -MdParserSmia::ParseStatus MdParserSmia::findRegs(libcamera::Span<const uint8_t> buffer) -{ - ASSERT(offsets_.size()); - - if (buffer[0] != LineStart) - return NoLineStart; - - unsigned int currentOffset = 1; /* after the LineStart */ - unsigned int currentLineStart = 0, currentLine = 0; - unsigned int regNum = 0, regsDone = 0; - - while (1) { - int tag = buffer[currentOffset++]; - - if ((bitsPerPixel_ == 10 && - (currentOffset + 1 - currentLineStart) % 5 == 0) || - (bitsPerPixel_ == 12 && - (currentOffset + 1 - currentLineStart) % 3 == 0)) { - if (buffer[currentOffset++] != RegSkip) - return BadDummy; - } - - int dataByte = buffer[currentOffset++]; - - if (tag == LineEndTag) { - if (dataByte != LineEndTag) - return BadLineEnd; - - if (numLines_ && ++currentLine == numLines_) - return MissingRegs; - - if (lineLengthBytes_) { - currentOffset = currentLineStart + lineLengthBytes_; - - /* Require whole line to be in the buffer (if buffer size set). */ - if (buffer.size() && - currentOffset + lineLengthBytes_ > buffer.size()) - return MissingRegs; - - if (buffer[currentOffset] != LineStart) - return NoLineStart; - } else { - /* allow a zero line length to mean "hunt for the next line" */ - while (currentOffset < buffer.size() && - buffer[currentOffset] != LineStart) - currentOffset++; - - if (currentOffset == buffer.size()) - return NoLineStart; - } - - /* inc currentOffset to after LineStart */ - currentLineStart = currentOffset++; - } else { - if (tag == RegHiBits) - regNum = (regNum & 0xff) | (dataByte << 8); - else if (tag == RegLowBits) - regNum = (regNum & 0xff00) | dataByte; - else if (tag == RegSkip) - regNum++; - else if (tag == RegValue) { - auto reg = offsets_.find(regNum); - - if (reg != offsets_.end()) { - offsets_[regNum] = currentOffset - 1; - - if (++regsDone == offsets_.size()) - return ParseOk; - } - regNum++; - } else - return IllegalTag; - } - } -} |