u32 ath_regd_get_band_ctl(struct ath_regulatory *reg,
enum ieee80211_band band)
{
if (!reg->regpair ||
(reg->country_code == CTRY_DEFAULT &&
is_wwr_sku(ath_regd_get_eepromRD(reg)))) {
return SD_NO_CTL;
}
if (ath_regd_get_eepromRD(reg) == CTRY_DEFAULT) {
switch (reg->region) {
case NL80211_DFS_FCC:
return CTL_FCC;
case NL80211_DFS_ETSI:
return CTL_ETSI;
case NL80211_DFS_JP:
return CTL_MKK;
default:
break;
}
}
switch (band) {
case IEEE80211_BAND_2GHZ:
return reg->regpair->reg_2ghz_ctl;
case IEEE80211_BAND_5GHZ:
return reg->regpair->reg_5ghz_ctl;
default:
return NO_CTL;
}
}
static bool ath_regd_is_eeprom_valid(struct ath_regulatory *reg)
{
u16 rd = ath_regd_get_eepromRD(reg);
int i;
if (rd & COUNTRY_ERD_FLAG) {
/* EEPROM value is a country code */
u16 cc = rd & ~COUNTRY_ERD_FLAG;
printk(KERN_DEBUG
"ath: EEPROM indicates we should expect "
"a country code\n");
for (i = 0; i < ARRAY_SIZE(allCountries); i++)
if (allCountries[i].countryCode == cc)
return true;
} else {
/* EEPROM value is a regpair value */
if (rd != CTRY_DEFAULT)
printk(KERN_DEBUG "ath: EEPROM indicates we "
"should expect a direct regpair map\n");
for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++)
if (regDomainPairs[i].regDmnEnum == rd)
return true;
}
printk(KERN_DEBUG
"ath: invalid regulatory domain/country code 0x%x\n", rd);
return false;
}
u32 ath_regd_get_band_ctl(struct ath_regulatory *reg,
enum ieee80211_band band)
{
if (!reg->regpair ||
(reg->country_code == CTRY_DEFAULT &&
is_wwr_sku(ath_regd_get_eepromRD(reg)))) {
return SD_NO_CTL;
}
switch (band) {
case IEEE80211_BAND_2GHZ:
return reg->regpair->reg_2ghz_ctl;
case IEEE80211_BAND_5GHZ:
return reg->regpair->reg_5ghz_ctl;
default:
return NO_CTL;
}
}
static int __ath_regd_init(struct ath_regulatory *reg)
{
struct country_code_to_enum_rd *country = NULL;
u16 regdmn;
if (!reg)
return -EINVAL;
ath_regd_sanitize(reg);
printk(KERN_DEBUG "ath: EEPROM regdomain: 0x%0x\n", reg->current_rd);
if (!ath_regd_is_eeprom_valid(reg)) {
pr_err("Invalid EEPROM contents\n");
return -EINVAL;
}
regdmn = ath_regd_get_eepromRD(reg);
reg->country_code = ath_regd_get_default_country(regdmn);
if (reg->country_code == CTRY_DEFAULT &&
regdmn == CTRY_DEFAULT) {
printk(KERN_DEBUG "ath: EEPROM indicates default "
"country code should be used\n");
reg->country_code = CTRY_UNITED_STATES;
}
if (reg->country_code == CTRY_DEFAULT) {
country = NULL;
} else {
printk(KERN_DEBUG "ath: doing EEPROM country->regdmn "
"map search\n");
country = ath_regd_find_country(reg->country_code);
if (country == NULL) {
printk(KERN_DEBUG
"ath: no valid country maps found for "
"country code: 0x%0x\n",
reg->country_code);
return -EINVAL;
} else {
regdmn = country->regDmnEnum;
printk(KERN_DEBUG "ath: country maps to "
"regdmn code: 0x%0x\n",
regdmn);
}
}
reg->regpair = ath_get_regpair(regdmn);
if (!reg->regpair) {
printk(KERN_DEBUG "ath: "
"No regulatory domain pair found, cannot continue\n");
return -EINVAL;
}
if (!country)
country = ath_regd_find_country_by_rd(regdmn);
if (country) {
reg->alpha2[0] = country->isoName[0];
reg->alpha2[1] = country->isoName[1];
} else {
reg->alpha2[0] = '0';
reg->alpha2[1] = '0';
}
printk(KERN_DEBUG "ath: Country alpha2 being used: %c%c\n",
reg->alpha2[0], reg->alpha2[1]);
printk(KERN_DEBUG "ath: Regpair used: 0x%0x\n",
reg->regpair->regDmnEnum);
return 0;
}
bool ath_is_world_regd(struct ath_regulatory *reg)
{
return is_wwr_sku(ath_regd_get_eepromRD(reg));
}
