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Diffstat (limited to 'src/ipa/raspberrypi/md_parser.cpp')
-rw-r--r--src/ipa/raspberrypi/md_parser.cpp102
1 files changed, 0 insertions, 102 deletions
diff --git a/src/ipa/raspberrypi/md_parser.cpp b/src/ipa/raspberrypi/md_parser.cpp
deleted file mode 100644
index 852a1d34..00000000
--- a/src/ipa/raspberrypi/md_parser.cpp
+++ /dev/null
@@ -1,102 +0,0 @@
-/* SPDX-License-Identifier: BSD-2-Clause */
-/*
- * Copyright (C) 2019, Raspberry Pi (Trading) Limited
- *
- * md_parser.cpp - image sensor metadata parsers
- */
-
-#include <assert.h>
-#include <map>
-#include <string.h>
-
-#include "md_parser.hpp"
-
-using namespace RPiController;
-
-// 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.
-
-#define LINE_START 0x0a
-#define LINE_END_TAG 0x07
-#define REG_HI_BITS 0xaa
-#define REG_LOW_BITS 0xa5
-#define REG_VALUE 0x5a
-#define REG_SKIP 0x55
-
-MdParserSmia::ParseStatus MdParserSmia::findRegs(libcamera::Span<const uint8_t> buffer,
- uint32_t regs[], int offsets[],
- unsigned int num_regs)
-{
- assert(num_regs > 0);
-
- if (buffer[0] != LINE_START)
- return NO_LINE_START;
-
- unsigned int current_offset = 1; // after the LINE_START
- unsigned int current_line_start = 0, current_line = 0;
- unsigned int reg_num = 0, first_reg = 0;
- ParseStatus retcode = PARSE_OK;
- while (1) {
- int tag = buffer[current_offset++];
- if ((bits_per_pixel_ == 10 &&
- (current_offset + 1 - current_line_start) % 5 == 0) ||
- (bits_per_pixel_ == 12 &&
- (current_offset + 1 - current_line_start) % 3 == 0)) {
- if (buffer[current_offset++] != REG_SKIP)
- return BAD_DUMMY;
- }
- int data_byte = buffer[current_offset++];
- //printf("Offset %u, tag 0x%02x data_byte 0x%02x\n", current_offset-1, tag, data_byte);
- if (tag == LINE_END_TAG) {
- if (data_byte != LINE_END_TAG)
- return BAD_LINE_END;
- if (num_lines_ && ++current_line == num_lines_)
- return MISSING_REGS;
- if (line_length_bytes_) {
- current_offset =
- current_line_start + line_length_bytes_;
- // Require whole line to be in the buffer (if buffer size set).
- if (buffer.size() &&
- current_offset + line_length_bytes_ >
- buffer.size())
- return MISSING_REGS;
- if (buffer[current_offset] != LINE_START)
- return NO_LINE_START;
- } else {
- // allow a zero line length to mean "hunt for the next line"
- while (buffer[current_offset] != LINE_START &&
- current_offset < buffer.size())
- current_offset++;
- if (current_offset == buffer.size())
- return NO_LINE_START;
- }
- // inc current_offset to after LINE_START
- current_line_start =
- current_offset++;
- } else {
- if (tag == REG_HI_BITS)
- reg_num = (reg_num & 0xff) | (data_byte << 8);
- else if (tag == REG_LOW_BITS)
- reg_num = (reg_num & 0xff00) | data_byte;
- else if (tag == REG_SKIP)
- reg_num++;
- else if (tag == REG_VALUE) {
- while (reg_num >=
- // assumes registers are in order...
- regs[first_reg]) {
- if (reg_num == regs[first_reg])
- offsets[first_reg] =
- current_offset - 1;
- if (++first_reg == num_regs)
- return retcode;
- }
- reg_num++;
- } else
- return ILLEGAL_TAG;
- }
- }
-}