/**
* @brief This function parses country info from AP and
* download country info to FW
*
* @param pmpriv A pointer to mlan_private structure
* @param pbss_desc A pointer to BSS descriptor
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
mlan_status
wlan_11d_parse_dnld_countryinfo(mlan_private * pmpriv,
BSSDescriptor_t * pbss_desc)
{
mlan_status ret = MLAN_STATUS_SUCCESS;
mlan_adapter *pmadapter = pmpriv->adapter;
parsed_region_chan_11d_t region_chan;
parsed_region_chan_11d_t bssdesc_region_chan;
t_u32 i, j;
ENTER();
/* Only valid if 11D is enabled */
if (wlan_11d_get_state(pmpriv) == ENABLE_11D) {
memset(pmadapter, &pmadapter->domain_reg, 0,
sizeof(wlan_802_11d_domain_reg_t));
memset(pmadapter, ®ion_chan, 0, sizeof(parsed_region_chan_11d_t));
memset(pmadapter, &bssdesc_region_chan, 0,
sizeof(parsed_region_chan_11d_t));
memcpy(pmadapter, ®ion_chan,
&pmadapter->parsed_region_chan,
sizeof(parsed_region_chan_11d_t));
if (pbss_desc) {
/* Parse domain info if available */
ret =
wlan_11d_parse_domain_info(pmadapter, &pbss_desc->country_info,
pbss_desc->bss_band,
&bssdesc_region_chan);
if (ret == MLAN_STATUS_SUCCESS) {
/* Update the channel-power table */
for (i = 0; ((i < bssdesc_region_chan.no_of_chan)
&& (i < MAX_NO_OF_CHAN)); i++) {
for (j = 0; ((j < region_chan.no_of_chan)
&& (j < MAX_NO_OF_CHAN)); j++) {
/*
* Channel already exists, so overwrite existing
* tx power with the tx_power received from
* country info of the current AP
*/
if (region_chan.chan_pwr[i].chan ==
bssdesc_region_chan.chan_pwr[j].chan) {
region_chan.chan_pwr[j].pwr =
bssdesc_region_chan.chan_pwr[i].pwr;
break;
}
}
}
}
}
/* Generate domain info */
wlan_11d_generate_domain_info(pmadapter, ®ion_chan,
&pmadapter->domain_reg);
/* Set domain info */
ret = wlan_11d_set_domain_info(pmpriv);
if (ret) {
PRINTM(MERROR, "11D: Error setting domain info in FW\n");
}
}
LEAVE();
return ret;
}
/**
* @brief This function processes the country info present in BSSDescriptor.
*
* @param pmpriv A pointer to mlan_private structure
* @param pbss_desc A pointer to BSSDescriptor_t
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
static mlan_status
wlan_11d_process_country_info(mlan_private * pmpriv,
BSSDescriptor_t * pbss_desc)
{
mlan_adapter *pmadapter = pmpriv->adapter;
parsed_region_chan_11d_t region_chan;
parsed_region_chan_11d_t *parsed_region_chan =
&pmadapter->parsed_region_chan;
t_u16 i, j, num_chan_added = 0;
ENTER();
memset(pmadapter, ®ion_chan, 0, sizeof(parsed_region_chan_11d_t));
/* Parse 11D country info */
if (wlan_11d_parse_domain_info(pmadapter, &pbss_desc->country_info,
(t_u8) pbss_desc->bss_band,
®ion_chan) != MLAN_STATUS_SUCCESS)
return MLAN_STATUS_FAILURE;
memcpy(pmadapter, parsed_region_chan->country_code,
®ion_chan.country_code, COUNTRY_CODE_LEN);
if (parsed_region_chan->no_of_chan != 0) {
/*
* Check if the channel number already exists in the
* chan-power table of parsed_region_chan
*/
for (i = 0; (i < region_chan.no_of_chan && i < MAX_NO_OF_CHAN); i++) {
for (j = 0; (j < parsed_region_chan->no_of_chan &&
j < MAX_NO_OF_CHAN); j++) {
/*
* Channel already exists, update the tx power with new tx
* power, since country IE is valid here.
*/
if (region_chan.chan_pwr[i].chan ==
parsed_region_chan->chan_pwr[j].chan) {
parsed_region_chan->chan_pwr[j].pwr =
region_chan.chan_pwr[i].pwr;
break;
}
}
if (j == parsed_region_chan->no_of_chan && j < MAX_NO_OF_CHAN) {
/*
* Channel does not exist in the channel power table,
* update this new chan and tx_power to the channel power table
*/
parsed_region_chan->chan_pwr[parsed_region_chan->no_of_chan +
num_chan_added].chan =
region_chan.chan_pwr[i].chan;
parsed_region_chan->chan_pwr[parsed_region_chan->no_of_chan +
num_chan_added].pwr =
region_chan.chan_pwr[i].pwr;
num_chan_added++;
}
}
parsed_region_chan->no_of_chan += num_chan_added;
} else {
/* Parsed region is empty, copy the first one */
memcpy(pmadapter, parsed_region_chan,
®ion_chan, sizeof(parsed_region_chan_11d_t));
}
LEAVE();
return MLAN_STATUS_SUCCESS;
}
/**
* @brief This function parses country info from AP and
* download country info to FW
*
* @param pmpriv A pointer to mlan_private structure
* @param pbss_desc A pointer to BSS descriptor
*
* @return MLAN_STATUS_SUCCESS or MLAN_STATUS_FAILURE
*/
mlan_status
wlan_11d_parse_dnld_countryinfo(mlan_private *pmpriv,
BSSDescriptor_t *pbss_desc)
{
mlan_status ret = MLAN_STATUS_SUCCESS;
mlan_adapter *pmadapter = pmpriv->adapter;
parsed_region_chan_11d_t region_chan;
parsed_region_chan_11d_t bssdesc_region_chan;
t_u32 i, j;
ENTER();
/* Only valid if 11D is enabled */
if (wlan_11d_is_enabled(pmpriv)) {
memset(pmadapter, ®ion_chan, 0,
sizeof(parsed_region_chan_11d_t));
memset(pmadapter, &bssdesc_region_chan, 0,
sizeof(parsed_region_chan_11d_t));
memcpy(pmadapter, ®ion_chan,
&pmadapter->parsed_region_chan,
sizeof(parsed_region_chan_11d_t));
if (pbss_desc) {
/* Parse domain info if available */
ret = wlan_11d_parse_domain_info(pmadapter,
&pbss_desc->
country_info,
(t_u8)pbss_desc->
bss_band,
&bssdesc_region_chan);
if (ret == MLAN_STATUS_SUCCESS) {
/* Update the channel-power table */
for (i = 0;
((i < bssdesc_region_chan.no_of_chan)
&& (i < MAX_NO_OF_CHAN)); i++) {
for (j = 0;
((j < region_chan.no_of_chan)
&& (j < MAX_NO_OF_CHAN)); j++) {
/*
* Channel already exists, use minimum
* of existing tx power and tx_power
* received from country info of the
* current AP
*/
if (region_chan.chan_pwr[i].
chan ==
bssdesc_region_chan.
chan_pwr[j].chan &&
region_chan.chan_pwr[i].
band ==
bssdesc_region_chan.
chan_pwr[j].band) {
region_chan.chan_pwr[j].
pwr =
MIN(region_chan.
chan_pwr[j].
pwr,
bssdesc_region_chan.
chan_pwr[i].
pwr);
break;
}
}
}
}
}
/* Generate domain info */
wlan_11d_generate_domain_info(pmadapter, ®ion_chan);
/* Set domain info */
ret = wlan_11d_send_domain_info(pmpriv, MNULL);
if (ret) {
PRINTM(MERROR,
"11D: Error sending domain info to FW\n");
}
}
LEAVE();
return ret;
}
