crc32.c File Reference

Include dependency graph for crc32.c:

Go to the source code of this file.

Functions
uint32_t	crc32_le (uint32_t poly, uint32_t seed, const void *_data, size_t data_len)
	Calculate the CRC32 value of the given data. More...
static uint32_t	crc_le_step (uint32_t poly, uint32_t crc, uint32_t data_in, unsigned int data_bits)

Function Documentation

crc32_le()

uint32_t crc32_le	(	uint32_t	poly,
		uint32_t	seed,
		const void *	data,
		size_t	data_len
	)

Calculate the CRC32 value of the given data.

Parameters

poly	The polynomial of the CRC
seed	The seed to use (mostly either 0 or 0xffffffff)
data	The data to calculate the CRC32 of
data_len	The length of the data in data in bytes

Returns

The CRC value of the first data_len bytes at data

Note

This function can be used to incrementally compute the CRC one chunk of data at a time by using the CRC32 of the previous chunk as seed for the next chunk.

Definition at line 33 of file crc32.c.

References crc_le_step().

Referenced by adbg_wb_burst_read(), adbg_wb_burst_write(), and qn908x_probe().

crc_le_step()

static uint32_t crc_le_step ( uint32_t  poly, uint32_t  crc, uint32_t  data_in, unsigned int  data_bits  )

static

Definition at line 19 of file crc32.c.

Referenced by crc32_le().