Following function are tied to the LWIP functions and i do not want to use any LWIP etc...
How to bypass that ?
void HAL_ETH_RxAllocateCallback(uint8_t **buff)
{
struct pbuf_custom *p = LWIP_MEMPOOL_ALLOC(RX_POOL);
if (p)
{
/* Get the buff from the struct pbuf address. */
*buff = (uint8_t *)p + offsetof(RxBuff_t, buff);
p->custom_free_function = pbuf_free_custom;
/* Initialize the struct pbuf.
* This must be performed whenever a buffer's allocated because it may be
* changed by lwIP or the app, e.g., pbuf_free decrements ref. */
pbuf_alloced_custom(PBUF_RAW, 0, PBUF_REF, p, *buff, ETH_RX_BUFFER_SIZE);
}
else
{
RxAllocStatus = RX_ALLOC_ERROR;
*buff = NULL;
}
}
void HAL_ETH_RxLinkCallback(void **pStart, void **pEnd, uint8_t *buff, uint16_t Length)
{
struct pbuf **ppStart = (struct pbuf **)pStart;
struct pbuf **ppEnd = (struct pbuf **)pEnd;
struct pbuf *p = NULL;
/* Get the struct pbuf from the buff address. */
p = (struct pbuf *)(buff - offsetof(RxBuff_t, buff));
p->next = NULL;
p->tot_len = 0;
p->len = Length;
/* Chain the buffer. */
if (!*ppStart)
{
/* The first buffer of the packet. */
*ppStart = p;
}
else
{
/* Chain the buffer to the end of the packet. */
(*ppEnd)->next = p;
}
*ppEnd = p;
/* Update the total length of all the buffers of the chain. Each pbuf in the chain should have its tot_len
* set to its own length, plus the length of all the following pbufs in the chain. */
for (p = *ppStart; p != NULL; p = p->next)
{
p->tot_len += Length;
}
/* Invalidate data cache because Rx DMA's writing to physical memory makes it stale. */
SCB_InvalidateDCache_by_Addr((uint32_t *)buff, Length);
}
void HAL_ETH_TxFreeCallback(uint32_t * buff)
{
pbuf_free((struct pbuf *)buff);
}
