/* totally bogus -- d11 hdr only + tx hdrs */
static void *
wlc_olpc_get_pkt(wlc_info_t *wlc, uint ac, uint* fifo)
{
int buflen = (TXOFF + WL_OLPC_PKT_LEN);
void* p = NULL;
osl_t *osh = wlc->osh;
const char* macaddr = NULL;
struct dot11_header *hdr = NULL;
if ((p = PKTGET(osh, buflen, TRUE)) == NULL) {
WL_ERROR(("wl%d: %s: pktget error for len %d \n",
wlc->pub->unit, __FUNCTION__, buflen));
goto fatal;
}
macaddr = WLC_MACADDR(wlc);
WL_NONE(("pkt manip\n"));
/* reserve TXOFF bytes of headroom */
PKTPULL(osh, p, TXOFF);
PKTSETLEN(osh, p, WL_OLPC_PKT_LEN);
WL_NONE(("d11_hdr\n"));
hdr = (struct dot11_header*)PKTDATA(osh, p);
bzero((char*)hdr, WL_OLPC_PKT_LEN);
hdr->fc = htol16(FC_DATA);
hdr->durid = 0;
bcopy((const char*)macaddr, (char*)&(hdr->a1.octet), ETHER_ADDR_LEN);
bcopy((const char*)macaddr, (char*)&(hdr->a2.octet), ETHER_ADDR_LEN);
bcopy((const char*)macaddr, (char*)&(hdr->a3.octet), ETHER_ADDR_LEN);
hdr->seq = 0;
WL_NONE(("prep raw 80211\n"));
wlc->olpc_info->tx_cal_pkts = TRUE;
/* frameid returned here -- ignore for now -- may speed up using this */
(void)wlc_prep80211_raw(wlc, NULL, ac, TRUE, p, fifo);
wlc->olpc_info->tx_cal_pkts = FALSE;
return p;
fatal:
return (NULL);
}
/* returns a pointer to the next frame received, or NULL if there are no more */
void*
dma_rx(dma_info_t *di)
{
void *p;
uint len;
int skiplen = 0;
while ((p = dma_getnextrxp(di, FALSE))) {
/* skip giant packets which span multiple rx descriptors */
if (skiplen > 0) {
skiplen -= di->rxbufsize;
if (skiplen < 0)
skiplen = 0;
PKTFREE(di->drv, p, FALSE);
continue;
}
len = ltoh16(*(uint16*)(PKTDATA(di->drv, p)));
DMA_TRACE(("%s: dma_rx len %d\n", di->name, len));
/* bad frame length check */
if (len > (di->rxbufsize - di->rxoffset)) {
DMA_ERROR(("%s: dma_rx: bad frame length (%d)\n", di->name, len));
if (len > 0)
skiplen = len - (di->rxbufsize - di->rxoffset);
PKTFREE(di->drv, p, FALSE);
di->hnddma.rxgiants++;
continue;
}
/* set actual length */
PKTSETLEN(di->drv, p, (di->rxoffset + len));
break;
}
return (p);
}
int
bcm_rpc_buf_len_set(rpc_tp_info_t * rpc_th, rpc_buf_t* b, uint len)
{
PKTSETLEN(rpc_th->osh, b, len);
return 0;
}