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ChibiOS-Contrib
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included copyright

This commit is contained in:
Stephane D'Alu 2016-02-15 21:42:16 +01:00
parent 260a9edc32
commit 7b5ddf1928
2 changed files with 39 additions and 6 deletions
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29
os/various/bswap.h
View File

@ -1,3 +1,19 @@
/*
Copyright (C) 2016 Stephane D'Alu
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.
*/
#ifndef BSWAP_H
#define BSWAP_H
@ -6,16 +22,17 @@ extern "C" {
#endif
#if !(defined(ARCH_BIG_ENDIAN) || defined(ARCH_LITTLE_ENDIAN))
#error "ARCH_BIG_ENDIAN or ARCH_LITTLE_ENDIAN not set."
#error "Need to define one: ARCH_BIG_ENDIAN or ARCH_LITTLE_ENDIAN"
#endif
#if defined(ARCH_BIG_ENDIAN) && defined(ARCH_LITTLE_ENDIAN)
#error "ARCH_BIG_ENDIAN and ARCH_LITTLE_ENDIAN are both set."
#error "ARCH_BIG_ENDIAN and ARCH_LITTLE_ENDIAN are both set"
#endif
#define BSWAP_16(x) \
(uint16_t)((((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8))
(uint16_t)((((x) & 0xFF00) >> 8) | \
(((x) & 0x00FF) << 8))
#define BSWAP_32(x) \
(uint32_t)((((x) & 0xFF000000UL) >> 24UL) | \
(((x) & 0x00FF0000UL) >> 8UL) | \
@ -61,7 +78,7 @@ extern "C" {
#define CPU_TO_BE16(x) BSWAP_16(x)
#define CPU_TO_BE32(x) BSWAP_32(x)
#endif
static inline uint16_t bswap_16(const uint16_t x)
__attribute__ ((warn_unused_result))
@ -114,8 +131,8 @@ static inline void bswap_n(void* const data, uint8_t len) {
uint8_t* ptr = (uint8_t*)data;
for ( ; len > 1 ; ptr++, len -= 2 ) {
uint8_t tmp = *ptr;
*ptr = *(ptr + len - 1);
uint8_t tmp = *ptr;
*ptr = *(ptr + len - 1);
*(ptr + len - 1) = tmp;
}
}

16
os/various/i2c_helpers.h
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@ -1,3 +1,19 @@
/*
Copyright (C) 2016 Stephane D'Alu
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.
*/
#ifndef I2C_HELPERS_H
#define I2C_HELPERS_H