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HAL CRC: Fix code to match coding conventions

pull/6708/head
Steven Cartmell 2018-05-04 16:23:47 +01:00
parent f006002dec
commit 1da75e5e85
2 changed files with 32 additions and 13 deletions
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12
hal/crc_api.h
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@ -36,17 +36,17 @@ typedef enum crc_polynomial {
} crc_polynomial_t;
typedef struct crc_mbed_config {
/// CRC Polynomial. Example polynomial: 0x21 = 0010_0011 = x^5+x+1
/** CRC Polynomial. Example polynomial: 0x21 = 0010_0011 = x^5+x+1 */
uint32_t polynomial;
/// CRC Bit Width
/** CRC Bit Width */
uint32_t width;
/// Initial seed value for the computation.
/** Initial seed value for the computation. */
uint32_t initial_xor;
/// Final xor value for the computation.
/** Final xor value for the computation. */
uint32_t final_xor;
/// Reflect bits on input.
/** Reflect bits on input. */
bool reflect_in;
/// Reflect bits in final result before returning.
/** Reflect bits in final result before returning. */
bool reflect_out;
} crc_mbed_config_t;

33
targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/mbed_crc_api.c
View File

@ -1,3 +1,18 @@
/* mbed Microcontroller Library
* Copyright (c) 2018 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "crc_api.h"
#include "drivers/fsl_crc.h"
@ -10,19 +25,22 @@ static uint32_t final_xor;
bool hal_crc_is_supported(const crc_mbed_config_t* config)
{
if (config == NULL)
if (config == NULL) {
return false;
}
if ((config->width != 32) || (config->width != 16))
if ((config->width != 32) || (config->width != 16)) {
return false;
}
return true;
}
void hal_crc_compute_partial_start(const crc_mbed_config_t* config)
{
if (config == NULL)
if (config == NULL) {
return;
}
width = ((config->polynomial & 0xFFFF0000U) != 0) ? kCrcBits32 : kCrcBits16;
final_xor = config->final_xor;
@ -41,19 +59,20 @@ void hal_crc_compute_partial_start(const crc_mbed_config_t* config)
void hal_crc_compute_partial(const uint8_t *data, const size_t size)
{
if (data == NULL)
if (data == NULL) {
return;
}
if (size == 0)
if (size == 0) {
return;
}
CRC_WriteData(CRC0, data, size);
}
uint32_t hal_crc_get_result(void)
{
if ((final_xor != 0x00000000U) && (final_xor != 0xFFFFFFFFU))
{
if ((final_xor != 0x00000000U) && (final_xor != 0xFFFFFFFFU)) {
CRC_WriteData(CRC0, (uint8_t*)&final_xor, sizeof(final_xor));
}