/*
* Performs the sequence necessary to read a config/info item.
*
* Arguments:
* hw device structure
* rid config/info record id (host order)
* buf host side record buffer. Upon return it will
* contain the body portion of the record (minus the
* RID and len).
* len buffer length (in bytes, should match record length)
*
* Returns:
* 0 success
*/
static int hfa384x_drvr_getconfig(hfa384x_t *hw, uint16_t rid, void *buf, uint16_t len)
{
int result = 0;
hfa384x_rec_t rec;
/* Request read of RID */
result = hfa384x_cmd_access( hw, 0, rid);
if ( result ) {
printf("Call to hfa384x_cmd_access failed\n");
return -1;
}
/* Copy out record length */
result = hfa384x_copy_from_bap( hw, rid, 0, &rec, sizeof(rec));
if ( result ) {
return -1;
}
/* Validate the record length */
if ( ((hfa384x2host_16(rec.reclen)-1)*2) != len ) { /* note body len calculation in bytes */
printf ( "RID len mismatch, rid=%#hx hlen=%d fwlen=%d\n", rid, len, (hfa384x2host_16(rec.reclen)-1)*2);
return -1;
}
/* Copy out record data */
result = hfa384x_copy_from_bap( hw, rid, sizeof(rec), buf, len);
return result;
}
/**************************************************************************
POLL - Wait for a frame
***************************************************************************/
static int prism2_poll(struct nic *nic, int retrieve)
{
uint16_t reg;
uint16_t rxfid;
uint16_t result;
hfa384x_rx_frame_t rxdesc;
hfa384x_t *hw = &hw_global;
/* Check for received packet */
reg = hfa384x_getreg(hw, HFA384x_EVSTAT);
if ( ! HFA384x_EVSTAT_ISRX(reg) ) {
/* No packet received - return 0 */
return 0;
}
if ( ! retrieve ) return 1;
/* Acknowledge RX event */
hfa384x_setreg(hw, HFA384x_EVACK_RX_SET(1), HFA384x_EVACK);
/* Get RX FID */
rxfid = hfa384x_getreg(hw, HFA384x_RXFID);
/* Get the descriptor (including headers) */
result = hfa384x_copy_from_bap(hw, rxfid, 0, &rxdesc, sizeof(rxdesc));
if ( result ) {
return 0; /* fail */
}
/* Byte order convert once up front. */
rxdesc.status = hfa384x2host_16(rxdesc.status);
rxdesc.time = hfa384x2host_32(rxdesc.time);
rxdesc.data_len = hfa384x2host_16(rxdesc.data_len);
/* Fill in nic->packetlen */
nic->packetlen = rxdesc.data_len;
if ( nic->packetlen > 0 ) {
/* Fill in nic->packet */
/*
* NOTE: Packets as received have an 8-byte header (LLC+SNAP(?)) terminating with the packet type.
* Etherboot expects a 14-byte header terminating with the packet type (it ignores the rest of the
* header), so we use a quick hack to achieve this.
*/
result = hfa384x_copy_from_bap(hw, rxfid, HFA384x_RX_DATA_OFF,
nic->packet + ETH_HLEN - sizeof(wlan_80211hdr_t), nic->packetlen);
if ( result ) {
return 0; /* fail */
}
}
return 1; /* Packet successfully received */
}
/*
* Performs the sequence necessary to read a 16/32 bit config/info item
* and convert it to host order.
*
* Arguments:
* hw device structure
* rid config/info record id (in host order)
* val ptr to 16/32 bit buffer to receive value (in host order)
*
* Returns:
* 0 success
*/
#if 0 /* Not actually used anywhere */
static int hfa384x_drvr_getconfig16(hfa384x_t *hw, uint16_t rid, void *val)
{
int result = 0;
result = hfa384x_drvr_getconfig(hw, rid, val, sizeof(uint16_t));
if ( result == 0 ) {
*((uint16_t*)val) = hfa384x2host_16(*((uint16_t*)val));
}
return result;
}
/*
* Performs the sequence necessary to read a 16/32 bit config/info item
* and convert it to host order.
*
* Arguments:
* hw device structure
* rid config/info record id (in host order)
* val ptr to 16/32 bit buffer to receive value (in host order)
*
* Returns:
* 0 success
*/
#if 0 /* Not actually used anywhere */
static int hfa384x_drvr_getconfig16(hfa384x_t *hw, UINT16 rid, void *val)
{
int result = 0;
result = hfa384x_drvr_getconfig(hw, rid, val, sizeof(UINT16));
if ( result == 0 ) {
*((UINT16*)val) = hfa384x2host_16(*((UINT16*)val));
}
return result;
}
/*----------------------------------------------------------------
* prism2mgmt_scan_results
*
* Retrieve the BSS description for one of the BSSs identified in
* a scan.
*
* Arguments:
* wlandev wlan device structure
* msgp ptr to msg buffer
*
* Returns:
* 0 success and done
* <0 success, but we're waiting for something to finish.
* >0 an error occurred while handling the message.
* Side effects:
*
* Call context:
* process thread (usually)
* interrupt
----------------------------------------------------------------*/
int prism2mgmt_scan_results(wlandevice_t *wlandev, void *msgp)
{
int result = 0;
p80211msg_dot11req_scan_results_t *req;
hfa384x_t *hw = wlandev->priv;
hfa384x_HScanResultSub_t *item = NULL;
int count;
DBFENTER;
req = (p80211msg_dot11req_scan_results_t *) msgp;
req->resultcode.status = P80211ENUM_msgitem_status_data_ok;
if (! hw->scanresults) {
WLAN_LOG_ERROR("dot11req_scan_results can only be used after a successful dot11req_scan.\n");
result = 2;
req->resultcode.data = P80211ENUM_resultcode_invalid_parameters;
goto exit;
}
count = (hw->scanresults->framelen - 3) / 32;
if (count > 32) count = 32;
if (req->bssindex.data >= count) {
WLAN_LOG_DEBUG(0, "requested index (%d) out of range (%d)\n",
req->bssindex.data, count);
result = 2;
req->resultcode.data = P80211ENUM_resultcode_invalid_parameters;
goto exit;
}
item = &(hw->scanresults->info.hscanresult.result[req->bssindex.data]);
/* signal and noise */
req->signal.status = P80211ENUM_msgitem_status_data_ok;
req->noise.status = P80211ENUM_msgitem_status_data_ok;
req->signal.data = hfa384x2host_16(item->sl);
req->noise.data = hfa384x2host_16(item->anl);
/* BSSID */
req->bssid.status = P80211ENUM_msgitem_status_data_ok;
req->bssid.data.len = WLAN_BSSID_LEN;
memcpy(req->bssid.data.data, item->bssid, WLAN_BSSID_LEN);
/* SSID */
req->ssid.status = P80211ENUM_msgitem_status_data_ok;
req->ssid.data.len = hfa384x2host_16(item->ssid.len);
memcpy(req->ssid.data.data, item->ssid.data, req->ssid.data.len);
/* supported rates */
for (count = 0; count < 10 ; count++)
if (item->supprates[count] == 0)
break;
#define REQBASICRATE(N) \
if ((count >= N) && DOT11_RATE5_ISBASIC_GET(item->supprates[(N)-1])) { \
req->basicrate ## N .data = item->supprates[(N)-1]; \
req->basicrate ## N .status = P80211ENUM_msgitem_status_data_ok; \
}
REQBASICRATE(1);
REQBASICRATE(2);
REQBASICRATE(3);
REQBASICRATE(4);
REQBASICRATE(5);
REQBASICRATE(6);
REQBASICRATE(7);
REQBASICRATE(8);
#define REQSUPPRATE(N) \
if (count >= N) { \
req->supprate ## N .data = item->supprates[(N)-1]; \
req->supprate ## N .status = P80211ENUM_msgitem_status_data_ok; \
}
REQSUPPRATE(1);
REQSUPPRATE(2);
REQSUPPRATE(3);
REQSUPPRATE(4);
REQSUPPRATE(5);
REQSUPPRATE(6);
REQSUPPRATE(7);
REQSUPPRATE(8);
/* beacon period */
req->beaconperiod.status = P80211ENUM_msgitem_status_data_ok;
req->beaconperiod.data = hfa384x2host_16(item->bcnint);
/* timestamps */
req->timestamp.status = P80211ENUM_msgitem_status_data_ok;
req->timestamp.data = jiffies;
req->localtime.status = P80211ENUM_msgitem_status_data_ok;
req->localtime.data = jiffies;
/* atim window */
req->ibssatimwindow.status = P80211ENUM_msgitem_status_data_ok;
req->ibssatimwindow.data = hfa384x2host_16(item->atim);
/* Channel */
req->dschannel.status = P80211ENUM_msgitem_status_data_ok;
req->dschannel.data = hfa384x2host_16(item->chid);
/* capinfo bits */
count = hfa384x2host_16(item->capinfo);
/* privacy flag */
req->privacy.status = P80211ENUM_msgitem_status_data_ok;
req->privacy.data = WLAN_GET_MGMT_CAP_INFO_PRIVACY(count);
/* cfpollable */
req->cfpollable.status = P80211ENUM_msgitem_status_data_ok;
req->cfpollable.data = WLAN_GET_MGMT_CAP_INFO_CFPOLLABLE(count);
/* cfpollreq */
req->cfpollreq.status = P80211ENUM_msgitem_status_data_ok;
req->cfpollreq.data = WLAN_GET_MGMT_CAP_INFO_CFPOLLREQ(count);
/* bsstype */
req->bsstype.status = P80211ENUM_msgitem_status_data_ok;
req->bsstype.data = (WLAN_GET_MGMT_CAP_INFO_ESS(count)) ?
P80211ENUM_bsstype_infrastructure :
P80211ENUM_bsstype_independent;
// item->proberesp_rate
/*
req->fhdwelltime
req->fhhopset
req->fhhoppattern
req->fhhopindex
req->cfpdurremaining
*/
result = 0;
req->resultcode.data = P80211ENUM_resultcode_success;
exit:
DBFEXIT;
return result;
}