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wifi: rtlwifi: rtl8192ce: fix dealing empty EEPROM values

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On OpenWRT platform, RTL8192CE could be soldered on board, but not standard PCI
module. In this case, some EEPROM values aren't programmed and left 0xff.
Load default values when the EEPROM values are empty to avoid problems.

Signed-off-by: Lu jicong <jiconglu58@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230214063602.2257263-1-jiconglu58@gmail.com
This commit is contained in:
Lu jicong 2023-02-14 06:36:02 +00:00 committed by Kalle Valo
parent f2b6cfda76
commit 59e6ded57c
1 changed files with 17 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/net/wireless/realtek/rtlwifi/rtl8192ce/hw.c
View File

@ -1428,7 +1428,9 @@ static void _rtl92ce_read_txpower_info_from_hwpg(struct ieee80211_hw *hw,
for (rf_path = 0; rf_path < 2; rf_path++) {
for (i = 0; i < 3; i++) {
if (!autoload_fail) {
if (!autoload_fail &&
hwinfo[EEPROM_TXPOWERCCK + rf_path * 3 + i] != 0xff &&
hwinfo[EEPROM_TXPOWERHT40_1S + rf_path * 3 + i] != 0xff) {
rtlefuse->
eeprom_chnlarea_txpwr_cck[rf_path][i] =
hwinfo[EEPROM_TXPOWERCCK + rf_path * 3 + i];
@ -1448,7 +1450,8 @@ static void _rtl92ce_read_txpower_info_from_hwpg(struct ieee80211_hw *hw,
}
for (i = 0; i < 3; i++) {
if (!autoload_fail)
if (!autoload_fail &&
hwinfo[EEPROM_TXPOWERHT40_2SDIFF + i] != 0xff)
tempval = hwinfo[EEPROM_TXPOWERHT40_2SDIFF + i];
else
tempval = EEPROM_DEFAULT_HT40_2SDIFF;
@ -1518,7 +1521,9 @@ static void _rtl92ce_read_txpower_info_from_hwpg(struct ieee80211_hw *hw,
}
for (i = 0; i < 3; i++) {
if (!autoload_fail) {
if (!autoload_fail &&
hwinfo[EEPROM_TXPWR_GROUP + i] != 0xff &&
hwinfo[EEPROM_TXPWR_GROUP + 3 + i] != 0xff) {
rtlefuse->eeprom_pwrlimit_ht40[i] =
hwinfo[EEPROM_TXPWR_GROUP + i];
rtlefuse->eeprom_pwrlimit_ht20[i] =
@ -1563,7 +1568,8 @@ static void _rtl92ce_read_txpower_info_from_hwpg(struct ieee80211_hw *hw,
for (i = 0; i < 14; i++) {
index = rtl92c_get_chnl_group((u8)i);
if (!autoload_fail)
if (!autoload_fail &&
hwinfo[EEPROM_TXPOWERHT20DIFF + index] != 0xff)
tempval = hwinfo[EEPROM_TXPOWERHT20DIFF + index];
else
tempval = EEPROM_DEFAULT_HT20_DIFF;
@ -1580,7 +1586,8 @@ static void _rtl92ce_read_txpower_info_from_hwpg(struct ieee80211_hw *hw,
index = rtl92c_get_chnl_group((u8)i);
if (!autoload_fail)
if (!autoload_fail &&
hwinfo[EEPROM_TXPOWER_OFDMDIFF + index] != 0xff)
tempval = hwinfo[EEPROM_TXPOWER_OFDMDIFF + index];
else
tempval = EEPROM_DEFAULT_LEGACYHTTXPOWERDIFF;
@ -1610,14 +1617,16 @@ static void _rtl92ce_read_txpower_info_from_hwpg(struct ieee80211_hw *hw,
"RF-B Legacy to HT40 Diff[%d] = 0x%x\n",
i, rtlefuse->txpwr_legacyhtdiff[RF90_PATH_B][i]);
if (!autoload_fail)
if (!autoload_fail && hwinfo[RF_OPTION1] != 0xff)
rtlefuse->eeprom_regulatory = (hwinfo[RF_OPTION1] & 0x7);
else
rtlefuse->eeprom_regulatory = 0;
RTPRINT(rtlpriv, FINIT, INIT_TXPOWER,
"eeprom_regulatory = 0x%x\n", rtlefuse->eeprom_regulatory);
if (!autoload_fail) {
if (!autoload_fail &&
hwinfo[EEPROM_TSSI_A] != 0xff &&
hwinfo[EEPROM_TSSI_B] != 0xff) {
rtlefuse->eeprom_tssi[RF90_PATH_A] = hwinfo[EEPROM_TSSI_A];
rtlefuse->eeprom_tssi[RF90_PATH_B] = hwinfo[EEPROM_TSSI_B];
} else {
@ -1628,7 +1637,7 @@ static void _rtl92ce_read_txpower_info_from_hwpg(struct ieee80211_hw *hw,
rtlefuse->eeprom_tssi[RF90_PATH_A],
rtlefuse->eeprom_tssi[RF90_PATH_B]);
if (!autoload_fail)
if (!autoload_fail && hwinfo[EEPROM_THERMAL_METER] != 0xff)
tempval = hwinfo[EEPROM_THERMAL_METER];
else
tempval = EEPROM_DEFAULT_THERMALMETER;