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Add host read-and-write funcs with index support

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krcroft 2020-04-14 17:38:12 -07:00 • committed by Patryk Obara
parent 090e039e29
commit f5f0449f17
1 changed files with 22 additions and 0 deletions
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22
include/mem.h
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@ -75,6 +75,12 @@ static INLINE uint16_t host_readw(const uint8_t *arr)
return le_to_host(val);
}
// Like the above, but allows index-style access assuming a 16-bit array
static INLINE uint16_t host_readw_at(const uint8_t *arr, const uintptr_t index)
{
return host_readw(arr + index * sizeof(uint16_t));
}
static INLINE void host_writew(uint8_t *arr, uint16_t val)
{
// Convert the host-type value to little-endian before filling array
@ -82,6 +88,11 @@ static INLINE void host_writew(uint8_t *arr, uint16_t val)
memcpy(arr, &val, sizeof(val));
}
static INLINE void host_writew_at(uint8_t *arr, const uintptr_t index, const uint16_t val)
{
host_writew(arr + index * sizeof(uint16_t), val);
}
static INLINE void host_addw(uint8_t *arr, const uint16_t incr)
{
const uint16_t val = host_readw(arr) + incr;
@ -97,6 +108,12 @@ static INLINE uint32_t host_readd(const uint8_t *arr)
return le_to_host(val);
}
// Like the above, but allows index-style access assuming a 32-bit array
static INLINE uint32_t host_readd_at(const uint8_t *arr, const uintptr_t index)
{
return host_readd(arr + index * sizeof(uint32_t));
}
static INLINE void host_writed(uint8_t *arr, uint32_t val)
{
// Convert the host-type value to little-endian before filling array
@ -104,6 +121,11 @@ static INLINE void host_writed(uint8_t *arr, uint32_t val)
memcpy(arr, &val, sizeof(val));
}
static INLINE void host_writed_at(uint8_t *arr, const uintptr_t index, const uint32_t val)
{
host_writed(arr + index * sizeof(uint32_t), val);
}
static INLINE void host_addd(uint8_t *arr, const uint32_t incr)
{
const uint32_t val = host_readd(arr) + incr;