Separation Generator to a dedicated repo

Change-Id: Id94831651c3266861435272a6e36c7884bef2c45
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

5 files changed, 0 insertions, 588 deletions

diff --git a/CAN-binder/libs/bitfield-c/src/bitfield/8byte.c b/CAN-binder/libs/bitfield-c/src/bitfield/8byte.c
deleted file mode 100644
index 9325ed1b..00000000
--- a/CAN-binder/libs/bitfield-c/src/bitfield/8byte.c
+++ /dev/null
@@ -1,61 +0,0 @@
-#include <bitfield/bitfield.h>
-#include <bitfield/8byte.h>
-#include <stddef.h>
-#include <limits.h>
-#include <string.h>
-
-#define EIGHTBYTE_BIT (8 * sizeof(uint64_t))
-
-uint8_t eightbyte_get_nibble(const uint64_t source, const uint8_t nibble_index,
-        const bool data_is_big_endian) {
-    return (uint8_t) eightbyte_get_bitfield(source, NIBBLE_SIZE * nibble_index,
-            NIBBLE_SIZE, data_is_big_endian);
-}
-
-uint8_t eightbyte_get_byte(uint64_t source, const uint8_t byte_index,
-        const bool data_is_big_endian) {
-    if(data_is_big_endian) {
-        source = __builtin_bswap64(source);
-    }
-    return (source >> (EIGHTBYTE_BIT - ((byte_index + 1) * CHAR_BIT))) & 0xFF;
-}
-
-// TODO is this funciton necessary anymore? is it any faster for uint64_t than
-// get_bitfield(data[], ...)? is the performance better on a 32 bit platform
-// like the PIC32?
-uint64_t eightbyte_get_bitfield(uint64_t source, const uint16_t offset,
-        const uint16_t bit_count, const bool data_is_big_endian) {
-    int startByte = offset / CHAR_BIT;
-    int endByte = (offset + bit_count - 1) / CHAR_BIT;
-
-    if(!data_is_big_endian) {
-        source = __builtin_bswap64(source);
-    }
-
-    uint8_t* bytes = (uint8_t*)&source;
-    uint64_t ret = bytes[startByte];
-    if(startByte != endByte) {
-        // The lowest byte address contains the most significant bit.
-        uint8_t i;
-        for(i = startByte + 1; i <= endByte; i++) {
-            ret = ret << 8;
-            ret = ret | bytes[i];
-        }
-    }
-
-    ret >>= 8 - find_end_bit(offset + bit_count);
-    return ret & bitmask(bit_count);
-}
-
-bool eightbyte_set_bitfield(uint64_t value, const uint16_t offset,
-        const uint16_t bit_count, uint64_t* destination) {
-    if(value > bitmask(bit_count)) {
-        return false;
-    }
-
-    int shiftDistance = EIGHTBYTE_BIT - offset - bit_count;
-    value <<= shiftDistance;
-    *destination &= ~(bitmask(bit_count) << shiftDistance);
-    *destination |= value;
-    return true;
-}
diff --git a/CAN-binder/libs/bitfield-c/src/bitfield/8byte.h b/CAN-binder/libs/bitfield-c/src/bitfield/8byte.h
deleted file mode 100644
index 04512690..00000000
--- a/CAN-binder/libs/bitfield-c/src/bitfield/8byte.h
+++ /dev/null
@@ -1,88 +0,0 @@
-#ifndef __8BYTE_H__
-#define __8BYTE_H__
-
-#include <stdint.h>
-#include <stdbool.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Public: Reads a subset of bits into a uint64_t.
- *
- * source - the bytes in question.
- * offset - the starting index of the bit field (beginning from 0).
- * bit_count - the width of the bit field to extract.
- * data_is_big_endian - if the data passed in is little endian, set this to false and it
- *      will be flipped before grabbing the bit field.
- *
- * Bit fields are positioned according to big-endian bit layout.
- *
- * For example, the bit layout of the value "42" (i.e. 00101010 set at position
- * 14 with length 6 is:
- *
- *     000000000000001010100000000000000000000000000000000000000000000
- *
- * and the same value and position but with length 8 is:
- *
- *     000000000000000010101000000000000000000000000000000000000000000
- *
- * If the architecture where is code is running is little-endian, the input data
- * will be swapped before grabbing the bit field.
- *
- * Examples
- *
- *  uint64_t value = get_bitfield(data, 2, 4);
- *
- * Returns the value of the requested bit field, right aligned in a uint64_t.
- */
-uint64_t eightbyte_get_bitfield(uint64_t source, const uint16_t offset,
-        const uint16_t bit_count, const bool data_is_big_endian);
-
-/* Public: Return a single nibble from the payload, with range checking.
- *
- * source - the source payload.
- * nibble_index - the index of the nibble to retreive. The leftmost nibble is
- *      index 0.
- * data_is_big_endian - if the data passed in is little endian, set this to false and it
- *      will be flipped before grabbing the bit field.
- *
- * Returns the retreived nibble, right aligned in a uint8_t.
- */
-uint8_t eightbyte_get_nibble(const uint64_t source, const uint8_t nibble_index,
-        const bool data_is_big_endian);
-
-/* Public: Return a single byte from the payload, with range checking.
- *
- * source - the source byte array.
- * byte_index - the index of the byte to retreive. The leftmost byte is index 0.
- * data_is_big_endian - if the data passed in is little endian, set this to false and it
- *      will be flipped before grabbing the bit field.
- *
- * Returns the retreived byte.
- */
-uint8_t eightbyte_get_byte(const uint64_t source, const uint8_t byte_index,
-        const bool data_is_big_endian);
-
-/* Public: Set the bit field in the given data array to the new value.
- *
- * destination - a byte array with size at least offset + bit_count.
- * value - the value to set in the bit field.
- * offset - the starting index of the bit field (beginning from 0).
- * bit_count - the number of bits to set in the data.
- *
- * Returns true if the bit_count is enough to fully represent the value, and
- *      false if it will not fit.
- */
-bool eightbyte_set_bitfield(uint64_t value,
-        const uint16_t offset, const uint16_t bit_count, uint64_t* destination);
-
-/* Private: Determine the index of the last bit used.
- */
-uint8_t find_end_bit(const uint16_t num_bits);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // __8BYTE_H__
diff --git a/CAN-binder/libs/bitfield-c/src/bitfield/bitarray.c b/CAN-binder/libs/bitfield-c/src/bitfield/bitarray.c
deleted file mode 100644
index dcb9a08f..00000000
--- a/CAN-binder/libs/bitfield-c/src/bitfield/bitarray.c
+++ /dev/null
@@ -1,145 +0,0 @@
-#include <bitfield/bitfield.h>
-#include <stddef.h>
-#include <limits.h>
-#include <string.h>
-
-#define PREPARE_FIRST_COPY()                                      \
-    do {                                                          \
-    if (bit_count >= (CHAR_BIT - destination_offset_modulo)) {              \
-        *destination &= reverse_mask[destination_offset_modulo];              \
-        bit_count -= CHAR_BIT - destination_offset_modulo;                  \
-    } else {                                                      \
-        *destination &= reverse_mask[destination_offset_modulo]               \
-              | reverse_mask_xor[destination_offset_modulo + bit_count + 1];\
-         c &= reverse_mask[destination_offset_modulo + bit_count    ];\
-        bit_count = 0;                                              \
-    } } while (0)
-
-static const uint8_t reverse_mask[] =
-    { 0x55, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff };
-static const uint8_t reverse_mask_xor[] =
-    { 0xff, 0x7f, 0x3f, 0x1f, 0x0f, 0x07, 0x03, 0x01, 0x00 };
-
-bool copy_bits(const uint8_t* source_origin, const uint16_t source_length,
-        const uint16_t source_offset, uint16_t bit_count,
-        uint8_t* destination_origin, const uint16_t destination_length,
-        const uint16_t destination_offset) {
-    if(bit_count < 1) {
-        return false;
-    }
-
-    if(source_offset + bit_count > source_length * CHAR_BIT ||
-            destination_offset + bit_count > destination_length * CHAR_BIT ) {
-        return false;
-    }
-
-    const uint8_t* source = source_origin + (source_offset / CHAR_BIT);
-    uint8_t* destination = destination_origin + (destination_offset / CHAR_BIT);
-    int source_offset_modulo = source_offset % CHAR_BIT;
-    int destination_offset_modulo = destination_offset % CHAR_BIT;
-
-    if(source_offset_modulo == destination_offset_modulo) {
-        if(source_offset_modulo > 0) {
-            uint8_t c = reverse_mask_xor[destination_offset_modulo] & *source++;
-            PREPARE_FIRST_COPY();
-            *destination++ |= c;
-        }
-
-        int byte_len = bit_count / CHAR_BIT;
-        int bit_count_modulo = bit_count % CHAR_BIT;
-
-        if(byte_len > 0) {
-            memcpy(destination, source, byte_len);
-            source += byte_len;
-            destination += byte_len;
-        }
-
-        if(bit_count_modulo > 0) {
-            *destination &= reverse_mask_xor[bit_count_modulo];
-            *destination |= reverse_mask[bit_count_modulo] & *source;
-        }
-    } else {
-        int bit_diff_left_shift;
-        int bit_diff_right_shift;
-        uint8_t c;
-        /*
-         * Begin: Line things up on destination.
-         */
-        if(source_offset_modulo > destination_offset_modulo) {
-            bit_diff_left_shift = source_offset_modulo - destination_offset_modulo;
-            bit_diff_right_shift = CHAR_BIT - bit_diff_left_shift;
-
-            c = *source++ << bit_diff_left_shift;
-            c |= *source >> bit_diff_right_shift;
-            c &= reverse_mask_xor[destination_offset_modulo];
-        } else {
-            bit_diff_right_shift = destination_offset_modulo - source_offset_modulo;
-            bit_diff_left_shift = CHAR_BIT - bit_diff_right_shift;
-
-            c = *source >> bit_diff_right_shift &
-                    reverse_mask_xor[destination_offset_modulo];
-        }
-        PREPARE_FIRST_COPY();
-        *destination++ |= c;
-
-        /*
-         * Middle: copy with only shifting the source.
-         */
-        int byte_len = bit_count / CHAR_BIT;
-        while(--byte_len >= 0) {
-            c = *source++ << bit_diff_left_shift;
-            c |= *source >> bit_diff_right_shift;
-            *destination++ = c;
-        }
-
-        /*
-         * End: copy the remaing bits;
-         */
-        int bit_count_modulo = bit_count % CHAR_BIT;
-        if(bit_count_modulo > 0) {
-            c = *source++ << bit_diff_left_shift;
-            c |= *source >> bit_diff_right_shift;
-            c &= reverse_mask[bit_count_modulo];
-
-            *destination &= reverse_mask_xor[bit_count_modulo];
-            *destination |= c;
-        }
-    }
-    return true;
-}
-
-uint16_t bits_to_bytes(uint32_t bits) {
-    uint8_t byte_count = bits / CHAR_BIT;
-    if(bits % CHAR_BIT != 0) {
-        ++byte_count;
-    }
-    return byte_count;
-}
-
-/**
- * Find the ending bit of a bitfield within the final byte.
- *
- * Returns: a bit position from 0 to 7.
- */
-uint8_t find_end_bit(const uint16_t numBits) {
-    int endBit = numBits % CHAR_BIT;
-    return endBit == 0 ? CHAR_BIT : endBit;
-}
-
-bool copy_bits_right_aligned(const uint8_t source[], const uint16_t source_length,
-                const uint16_t offset, const uint16_t bit_count,
-                uint8_t* destination, const uint16_t destination_length) {
-    return copy_bits(source, source_length, offset, bit_count, destination,
-            destination_length,
-            // provide a proper destination offset so the result is right
-            // aligned
-            (destination_length - bits_to_bytes(bit_count)) * CHAR_BIT +
-                 CHAR_BIT - find_end_bit(bit_count));
-}
-
-bool copy_bytes_right_aligned(const uint8_t source[], const uint16_t source_length,
-                const uint16_t offset, const uint16_t byte_count,
-                uint8_t* destination, const uint16_t destination_length) {
-    return copy_bits_right_aligned(source, source_length, offset * CHAR_BIT,
-            byte_count * CHAR_BIT, destination, destination_length);
-}
diff --git a/CAN-binder/libs/bitfield-c/src/bitfield/bitfield.c b/CAN-binder/libs/bitfield-c/src/bitfield/bitfield.c
deleted file mode 100644
index 795f0208..00000000
--- a/CAN-binder/libs/bitfield-c/src/bitfield/bitfield.c
+++ /dev/null
@@ -1,74 +0,0 @@
-#include <bitfield/bitfield.h>
-#include <limits.h>
-#include <string.h>
-#include <stddef.h>
-#include <sys/param.h>
-
-uint64_t bitmask(const uint8_t bit_count) {
-    return (((uint64_t)0x1) << bit_count) - 1;
-}
-
-uint8_t get_nibble(const uint8_t source[], const uint8_t source_length,
-                const uint8_t nibble_index) {
-    uint8_t byte_index = nibble_index / 2;
-    uint8_t result = get_byte(source, source_length, byte_index);
-    if(nibble_index % 2 == 0) {
-        result >>= NIBBLE_SIZE;
-    }
-    result &= bitmask(NIBBLE_SIZE);
-    return result;
-}
-
-uint8_t get_byte(const uint8_t source[], const uint8_t source_length,
-        const uint8_t byte_index) {
-    if(byte_index < source_length) {
-        return source[byte_index];
-    }
-    return 0;
-}
-
-uint64_t get_bitfield(const uint8_t source[], const uint8_t source_length,
-                const uint16_t offset, const uint16_t bit_count) {
-    if(bit_count > 64 || bit_count < 1) {
-        // TODO error reporting?
-        return 0;
-    }
-
-    ArrayOrBytes combined;
-    memset(combined.bytes, 0, sizeof(combined.bytes));
-    if(copy_bits_right_aligned(source, source_length, offset, bit_count,
-            combined.bytes, sizeof(combined.bytes))) {
-        if(BYTE_ORDER == LITTLE_ENDIAN) {
-            combined.whole = __builtin_bswap64(combined.whole);
-        }
-    } else {
-        // debug("couldn't copy enough bits from source")
-    }
-    return combined.whole;
-}
-
-bool set_nibble(const uint16_t nibble_index, const uint8_t value,
-        uint8_t* destination, const uint16_t destination_length) {
-    return copy_bits(&value, CHAR_BIT, NIBBLE_SIZE, NIBBLE_SIZE, destination,
-            destination_length, nibble_index * NIBBLE_SIZE);
-}
-
-bool set_bitfield(const uint64_t value, const uint16_t offset,
-        const uint16_t bit_count, uint8_t destination[],
-        uint16_t destination_length) {
-    if(value > bitmask(bit_count)) {
-        return false;
-    }
-
-    ArrayOrBytes combined = {
-        whole: value
-    };
-
-    if(BYTE_ORDER == LITTLE_ENDIAN) {
-        combined.whole = __builtin_bswap64(combined.whole);
-    }
-
-    return copy_bits(combined.bytes, sizeof(combined.bytes),
-            sizeof(combined.bytes) * CHAR_BIT - bit_count, bit_count,
-            destination, destination_length, offset);
-}
diff --git a/CAN-binder/libs/bitfield-c/src/bitfield/bitfield.h b/CAN-binder/libs/bitfield-c/src/bitfield/bitfield.h
deleted file mode 100644
index df92639a..00000000
--- a/CAN-binder/libs/bitfield-c/src/bitfield/bitfield.h
+++ /dev/null
@@ -1,220 +0,0 @@
-#ifndef __BITFIELD_H__
-#define __BITFIELD_H__
-
-#include <stdint.h>
-#include <stdbool.h>
-
-#define NIBBLE_SIZE (CHAR_BIT / 2)
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Public: Reads a subset of bits into a uint64_t, right aligned so they may be
- * interpreted as a number.
- *
- * source - the bytes in question.
- * source_size - the number of bytes in the source.
- * offset - the starting index of the bit field (beginning from 0).
- * bit_count - the width of the bit field to extract. This must be less than or
- *      equal to 64.
- *
- * Bit fields are positioned according to big-endian bit layout and the data is
- * swapped automatically as necessary depending on the compiled architecture.
- *
- * For example, the bit layout of the value "42" (i.e. 00101010 set at position
- * 14 with length 6 is:
- *
- *     000000000000001010100000000000000000000000000000000000000000000
- *
- * and the same value and position but with length 8 is:
- *
- *     000000000000000010101000000000000000000000000000000000000000000
- *
- * Examples
- *
- *  uint64_t value = get_bitfield(data, data_size, 2, 4);
- *
- * Returns the value of the requested bit field, right aligned in a uint64_t.
- */
-uint64_t get_bitfield(const uint8_t source[], const uint8_t source_length,
-                const uint16_t offset, const uint16_t bit_count);
-
-/* Public: Return a single nibble from the byte array, with range checking.
- *
- * source - the source byte array.
- * source_length - the total length of the source array.
- * nibble_index - the index of the nibble to retreive. The leftmost nibble is
- *      index 0.
- *
- * Returns the retreived nibble, right aligned in a uint8_t.
- */
-uint8_t get_nibble(const uint8_t source[], const uint8_t source_length,
-                const uint8_t nibble_index);
-
-/* Public: Return a single byte from the byte array, with range checking.
- *
- * source - the source byte array.
- * source_length - the total length of the source array.
- * byte_index - the index of the byte to retreive. The leftmost byte is index 0.
- *
- * Returns the retreived byte.
- */
-uint8_t get_byte(const uint8_t source[], const uint8_t source_length,
-        const uint8_t byte_index);
-
-/* Public: Copy a range of bits from one bit array to another.
- *
- * The range does not need to be byte aligned, and the source and destination do
- * not have to be the same size (as long as the desitnation has enough room to
- * fit the range).
- *
- * A bit array with regards to this function always has the leftmost bit in byte
- * 0, i.e. bit index is the leftmost bit of byte 0. Endianness does not matter.
- *
- * For example:
- *
- *      uint8_t source[4] = {0x11, 0x22, 0x33, 0x44};
- *      uint8_t destination[4] = {0};
- *      copy_bits(source, sizeof(source), 8, 8, destination,
- *              sizeof(destination), 0);
- *      // destination[0] == 0x22
- *      // destination[1] == 0x0
- *      // destination[2] == 0x0
- *      // destination[3] == 0x0
- *
- * Thanks to
- * http://stackoverflow.com/questions/3534535/whats-a-time-efficient-algorithm-to-copy-unaligned-bit-arrays
- * for the implementation of the algorithm.
- *
- * source_origin - the source array.
- * source_length - the total length of the source array in bytes,
- *      for range checking.
- * source_offset - an offset in bits to start the copy from the source array.
- *      Specify 0 to start from source_origin.
- * bit_count - the number of bits to copy.
- * destination_origin - the destination array.
- * desitnation_length - the total length of the destination array in bytes,
- *      for range checking.
- * destination_offset - an offset in bits to start placing the copied range into
- *      the destination array. Specify 0 to start from the beginning of the
- *      destination. If you are copying a range not aligned on a byte, you
- *      probably want to set this to a positive offset to right the resulting
- *      bits in the destination.
- *
- * Returns true if the copy was successful and false if the range exceeded the
- * size of the source or destination, or if the range size negative or 0.
- */
-bool copy_bits(const uint8_t* source_origin, const uint16_t source_length,
-        const uint16_t source_offset, uint16_t bit_count,
-        uint8_t* destination_origin, const uint16_t destination_length,
-        const uint16_t destination_offset);
-
-/* Public: Copy a range of bits from one array to another, right aligning the
- * result.
- *
- * This is mostly useful if you want to cast the result to an integer type
- * instead of a byte array.
- *
- * For example:
- *
- *      uint8_t source[4] = {0x11, 0x22, 0x33, 0x44};
- *      uint8_t destination[4] = {0};
- *      copy_bits_right_aligned(source, sizeof(source), 8, 8, destination,
- *              sizeof(destination));
- *      // destination[0] == 0x0
- *      // destination[1] == 0x0
- *      // destination[2] == 0x0
- *      // destination[3] == 0x22
- *
- *      int value = (int)destination;
- *      // value == 0x22 == 32
- *
- * The arguments are the same as copy_bits, but without the destination_offset
- * option - that's set automatically to right align the result.
- *
- * Returns true if the copy was successful and false if the range exceeded the
- * size of the source or destination, or if the range size negative or 0.
- */
-bool copy_bits_right_aligned(const uint8_t source[], const uint16_t source_length,
-                const uint16_t offset, const uint16_t bit_count,
-                uint8_t* destination, const uint16_t destination_length);
-
-/* Public: Copy a range of bytes from one byte array to another.
- *
- * The source and destination do not have to be the same size (as long as the
- * desitnation has enough room to fit the range).
- *
- * source_origin - the source array.
- * source_length - the total length of the source array in bytes,
- *      for range checking.
- * source_offset - a byte offset to start the copy from the source array.
- *      Specify 0 to start from source_origin.
- * byte_count - the number of bytes to copy.
- * destination_origin - the destination array.
- * desitnation_length - the total length of the destination array in bytes,
- *      for range checking.
- * destination_offset - an offset in bytes to start placing the copied range into
- *      the destination array. Specify 0 to start from the beginning of the
- *      destination.
- *
- * Returns true if the copy was successful and false if the range exceeded the
- * size of the source or destination, or if the range size negative or 0.
- */
-bool copy_bytes_right_aligned(const uint8_t source[], const uint16_t source_length,
-                const uint16_t offset, const uint16_t byte_count,
-                uint8_t* destination, const uint16_t destination_length);
-
-/* Public: Set the a nibble in the given data array to the new value.
- *
- * nibble_index - the index of the nibble to retreive. The leftmost nibble is
- *      index 0.
- * value - the value to set in the bit field.
- * destination - the destination array.
- * destination_length - the total length of the destination array in bytes,
- *      for range checking.
- *
- * Returns true if the bit_count is enough to fully represent the value, and
- *      false if it will not fit.
- */
-bool set_nibble(const uint16_t nibble_index, const uint8_t value,
-                uint8_t* destination, const uint16_t destination_length);
-
-/* Public: Set the bit field in the given data array to the new value.
- *
- * value - the value to set in the bit field.
- * offset - the starting index of the bit field (beginning from 0).
- * bit_count - the number of bits to set in the data.
- * destination - the destination array.
- * destination_length - the total length of the destination array in bytes,
- *      for range checking.
- *
- * Returns true if the bit_count is enough to fully represent the value, and
- *      false if it will not fit.
- */
-bool set_bitfield(const uint64_t value, const uint16_t offset,
-        const uint16_t bit_count, uint8_t destination[],
-        uint16_t destination_length);
-
-/* Public: Return a right aligned bitmask for a uint64_t.
- *
- * bit_count - the number of bits to mask, right aligned.
- */
-uint64_t bitmask(const uint8_t bit_count);
-
-/* Private:
- */
-uint16_t bits_to_bytes(uint32_t bits);
-
-/* Private: A union to assist swapping between uint64_t and a uint8_t array.
- */
-typedef union {
-    uint64_t whole;
-    uint8_t bytes[sizeof(uint64_t)];
-} ArrayOrBytes;
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // __BITFIELD_H__