aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/rtlwifi/rtl8192se/rf.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/rtlwifi/rtl8192se/rf.c')
-rw-r--r--drivers/net/wireless/rtlwifi/rtl8192se/rf.c546
1 files changed, 546 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/rf.c b/drivers/net/wireless/rtlwifi/rtl8192se/rf.c
new file mode 100644
index 00000000000..1d3a4833039
--- /dev/null
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/rf.c
@@ -0,0 +1,546 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2009-2010 Realtek Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * wlanfae <wlanfae@realtek.com>
+ * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
+ * Hsinchu 300, Taiwan.
+ *
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ *
+ *****************************************************************************/
+
+#include "../wifi.h"
+#include "reg.h"
+#include "def.h"
+#include "phy.h"
+#include "rf.h"
+#include "dm.h"
+
+
+static void _rtl92s_get_powerbase(struct ieee80211_hw *hw, u8 *p_pwrlevel,
+ u8 chnl, u32 *ofdmbase, u32 *mcsbase,
+ u8 *p_final_pwridx)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_phy *rtlphy = &(rtlpriv->phy);
+ struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
+ u32 pwrbase0, pwrbase1;
+ u8 legacy_pwrdiff = 0, ht20_pwrdiff = 0;
+ u8 i, pwrlevel[4];
+
+ for (i = 0; i < 2; i++)
+ pwrlevel[i] = p_pwrlevel[i];
+
+ /* We only care about the path A for legacy. */
+ if (rtlefuse->eeprom_version < 2) {
+ pwrbase0 = pwrlevel[0] + (rtlefuse->legacy_httxpowerdiff & 0xf);
+ } else if (rtlefuse->eeprom_version >= 2) {
+ legacy_pwrdiff = rtlefuse->txpwr_legacyhtdiff
+ [RF90_PATH_A][chnl - 1];
+
+ /* For legacy OFDM, tx pwr always > HT OFDM pwr.
+ * We do not care Path B
+ * legacy OFDM pwr diff. NO BB register
+ * to notify HW. */
+ pwrbase0 = pwrlevel[0] + legacy_pwrdiff;
+ }
+
+ pwrbase0 = (pwrbase0 << 24) | (pwrbase0 << 16) | (pwrbase0 << 8) |
+ pwrbase0;
+ *ofdmbase = pwrbase0;
+
+ /* MCS rates */
+ if (rtlefuse->eeprom_version >= 2) {
+ /* Check HT20 to HT40 diff */
+ if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20) {
+ for (i = 0; i < 2; i++) {
+ /* rf-A, rf-B */
+ /* HT 20<->40 pwr diff */
+ ht20_pwrdiff = rtlefuse->txpwr_ht20diff
+ [i][chnl - 1];
+
+ if (ht20_pwrdiff < 8) /* 0~+7 */
+ pwrlevel[i] += ht20_pwrdiff;
+ else /* index8-15=-8~-1 */
+ pwrlevel[i] -= (16 - ht20_pwrdiff);
+ }
+ }
+ }
+
+ /* use index of rf-A */
+ pwrbase1 = pwrlevel[0];
+ pwrbase1 = (pwrbase1 << 24) | (pwrbase1 << 16) | (pwrbase1 << 8) |
+ pwrbase1;
+ *mcsbase = pwrbase1;
+
+ /* The following is for Antenna
+ * diff from Ant-B to Ant-A */
+ p_final_pwridx[0] = pwrlevel[0];
+ p_final_pwridx[1] = pwrlevel[1];
+
+ switch (rtlefuse->eeprom_regulatory) {
+ case 3:
+ /* The following is for calculation
+ * of the power diff for Ant-B to Ant-A. */
+ if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
+ p_final_pwridx[0] += rtlefuse->pwrgroup_ht40
+ [RF90_PATH_A][
+ chnl - 1];
+ p_final_pwridx[1] += rtlefuse->pwrgroup_ht40
+ [RF90_PATH_B][
+ chnl - 1];
+ } else {
+ p_final_pwridx[0] += rtlefuse->pwrgroup_ht20
+ [RF90_PATH_A][
+ chnl - 1];
+ p_final_pwridx[1] += rtlefuse->pwrgroup_ht20
+ [RF90_PATH_B][
+ chnl - 1];
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, ("40MHz finalpwr_idx "
+ "(A / B) = 0x%x / 0x%x\n", p_final_pwridx[0],
+ p_final_pwridx[1]));
+ } else {
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD, ("20MHz finalpwr_idx "
+ "(A / B) = 0x%x / 0x%x\n", p_final_pwridx[0],
+ p_final_pwridx[1]));
+ }
+}
+
+static void _rtl92s_set_antennadiff(struct ieee80211_hw *hw,
+ u8 *p_final_pwridx)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
+ struct rtl_phy *rtlphy = &(rtlpriv->phy);
+ char ant_pwr_diff = 0;
+ u32 u4reg_val = 0;
+
+ if (rtlphy->rf_type == RF_2T2R) {
+ ant_pwr_diff = p_final_pwridx[1] - p_final_pwridx[0];
+
+ /* range is from 7~-8,
+ * index = 0x0~0xf */
+ if (ant_pwr_diff > 7)
+ ant_pwr_diff = 7;
+ if (ant_pwr_diff < -8)
+ ant_pwr_diff = -8;
+
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("Antenna Diff from RF-B "
+ "to RF-A = %d (0x%x)\n", ant_pwr_diff,
+ ant_pwr_diff & 0xf));
+
+ ant_pwr_diff &= 0xf;
+ }
+
+ /* Antenna TX power difference */
+ rtlefuse->antenna_txpwdiff[2] = 0;/* RF-D, don't care */
+ rtlefuse->antenna_txpwdiff[1] = 0;/* RF-C, don't care */
+ rtlefuse->antenna_txpwdiff[0] = (u8)(ant_pwr_diff); /* RF-B */
+
+ u4reg_val = rtlefuse->antenna_txpwdiff[2] << 8 |
+ rtlefuse->antenna_txpwdiff[1] << 4 |
+ rtlefuse->antenna_txpwdiff[0];
+
+ rtl_set_bbreg(hw, RFPGA0_TXGAINSTAGE, (BXBTXAGC | BXCTXAGC | BXDTXAGC),
+ u4reg_val);
+
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("Write BCD-Diff(0x%x) = 0x%x\n",
+ RFPGA0_TXGAINSTAGE, u4reg_val));
+}
+
+static void _rtl92s_get_txpower_writeval_byregulatory(struct ieee80211_hw *hw,
+ u8 chnl, u8 index,
+ u32 pwrbase0,
+ u32 pwrbase1,
+ u32 *p_outwrite_val)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_phy *rtlphy = &(rtlpriv->phy);
+ struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
+ u8 i, chnlgroup, pwrdiff_limit[4];
+ u32 writeval, customer_limit;
+
+ /* Index 0 & 1= legacy OFDM, 2-5=HT_MCS rate */
+ switch (rtlefuse->eeprom_regulatory) {
+ case 0:
+ /* Realtek better performance increase power diff
+ * defined by Realtek for large power */
+ chnlgroup = 0;
+
+ writeval = rtlphy->mcs_txpwrlevel_origoffset
+ [chnlgroup][index] +
+ ((index < 2) ? pwrbase0 : pwrbase1);
+
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("RTK better performance, "
+ "writeval = 0x%x\n", writeval));
+ break;
+ case 1:
+ /* Realtek regulatory increase power diff defined
+ * by Realtek for regulatory */
+ if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
+ writeval = ((index < 2) ? pwrbase0 : pwrbase1);
+
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("Realtek regulatory, "
+ "40MHz, writeval = 0x%x\n", writeval));
+ } else {
+ if (rtlphy->pwrgroup_cnt == 1)
+ chnlgroup = 0;
+
+ if (rtlphy->pwrgroup_cnt >= 3) {
+ if (chnl <= 3)
+ chnlgroup = 0;
+ else if (chnl >= 4 && chnl <= 8)
+ chnlgroup = 1;
+ else if (chnl > 8)
+ chnlgroup = 2;
+ if (rtlphy->pwrgroup_cnt == 4)
+ chnlgroup++;
+ }
+
+ writeval = rtlphy->mcs_txpwrlevel_origoffset
+ [chnlgroup][index]
+ + ((index < 2) ?
+ pwrbase0 : pwrbase1);
+
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("Realtek regulatory, "
+ "20MHz, writeval = 0x%x\n", writeval));
+ }
+ break;
+ case 2:
+ /* Better regulatory don't increase any power diff */
+ writeval = ((index < 2) ? pwrbase0 : pwrbase1);
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("Better regulatory, "
+ "writeval = 0x%x\n", writeval));
+ break;
+ case 3:
+ /* Customer defined power diff. increase power diff
+ defined by customer. */
+ chnlgroup = 0;
+
+ if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("customer's limit, 40MHz = 0x%x\n",
+ rtlefuse->pwrgroup_ht40
+ [RF90_PATH_A][chnl - 1]));
+ } else {
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("customer's limit, 20MHz = 0x%x\n",
+ rtlefuse->pwrgroup_ht20
+ [RF90_PATH_A][chnl - 1]));
+ }
+
+ for (i = 0; i < 4; i++) {
+ pwrdiff_limit[i] =
+ (u8)((rtlphy->mcs_txpwrlevel_origoffset
+ [chnlgroup][index] & (0x7f << (i * 8)))
+ >> (i * 8));
+
+ if (rtlphy->current_chan_bw ==
+ HT_CHANNEL_WIDTH_20_40) {
+ if (pwrdiff_limit[i] >
+ rtlefuse->pwrgroup_ht40
+ [RF90_PATH_A][chnl - 1]) {
+ pwrdiff_limit[i] =
+ rtlefuse->pwrgroup_ht20
+ [RF90_PATH_A][chnl - 1];
+ }
+ } else {
+ if (pwrdiff_limit[i] >
+ rtlefuse->pwrgroup_ht20
+ [RF90_PATH_A][chnl - 1]) {
+ pwrdiff_limit[i] =
+ rtlefuse->pwrgroup_ht20
+ [RF90_PATH_A][chnl - 1];
+ }
+ }
+ }
+
+ customer_limit = (pwrdiff_limit[3] << 24) |
+ (pwrdiff_limit[2] << 16) |
+ (pwrdiff_limit[1] << 8) |
+ (pwrdiff_limit[0]);
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("Customer's limit = 0x%x\n",
+ customer_limit));
+
+ writeval = customer_limit + ((index < 2) ?
+ pwrbase0 : pwrbase1);
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("Customer, writeval = "
+ "0x%x\n", writeval));
+ break;
+ default:
+ chnlgroup = 0;
+ writeval = rtlphy->mcs_txpwrlevel_origoffset[chnlgroup][index] +
+ ((index < 2) ? pwrbase0 : pwrbase1);
+ RT_TRACE(rtlpriv, COMP_POWER, DBG_LOUD,
+ ("RTK better performance, "
+ "writeval = 0x%x\n", writeval));
+ break;
+ }
+
+ if (rtlpriv->dm.dynamic_txhighpower_lvl == TX_HIGH_PWR_LEVEL_LEVEL1)
+ writeval = 0x10101010;
+ else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
+ TX_HIGH_PWR_LEVEL_LEVEL2)
+ writeval = 0x0;
+
+ *p_outwrite_val = writeval;
+
+}
+
+static void _rtl92s_write_ofdm_powerreg(struct ieee80211_hw *hw,
+ u8 index, u32 val)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_phy *rtlphy = &(rtlpriv->phy);
+ struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
+ u16 regoffset[6] = {0xe00, 0xe04, 0xe10, 0xe14, 0xe18, 0xe1c};
+ u8 i, rfa_pwr[4];
+ u8 rfa_lower_bound = 0, rfa_upper_bound = 0, rf_pwr_diff = 0;
+ u32 writeval = val;
+
+ /* If path A and Path B coexist, we must limit Path A tx power.
+ * Protect Path B pwr over or under flow. We need to calculate
+ * upper and lower bound of path A tx power. */
+ if (rtlphy->rf_type == RF_2T2R) {
+ rf_pwr_diff = rtlefuse->antenna_txpwdiff[0];
+
+ /* Diff=-8~-1 */
+ if (rf_pwr_diff >= 8) {
+ /* Prevent underflow!! */
+ rfa_lower_bound = 0x10 - rf_pwr_diff;
+ /* if (rf_pwr_diff >= 0) Diff = 0-7 */
+ } else {
+ rfa_upper_bound = RF6052_MAX_TX_PWR - rf_pwr_diff;
+ }
+ }
+
+ for (i = 0; i < 4; i++) {
+ rfa_pwr[i] = (u8)((writeval & (0x7f << (i * 8))) >> (i * 8));
+ if (rfa_pwr[i] > RF6052_MAX_TX_PWR)
+ rfa_pwr[i] = RF6052_MAX_TX_PWR;
+
+ /* If path A and Path B coexist, we must limit Path A tx power.
+ * Protect Path B pwr over or under flow. We need to calculate
+ * upper and lower bound of path A tx power. */
+ if (rtlphy->rf_type == RF_2T2R) {
+ /* Diff=-8~-1 */
+ if (rf_pwr_diff >= 8) {
+ /* Prevent underflow!! */
+ if (rfa_pwr[i] < rfa_lower_bound)
+ rfa_pwr[i] = rfa_lower_bound;
+ /* Diff = 0-7 */
+ } else if (rf_pwr_diff >= 1) {
+ /* Prevent overflow */
+ if (rfa_pwr[i] > rfa_upper_bound)
+ rfa_pwr[i] = rfa_upper_bound;
+ }
+ }
+
+ }
+
+ writeval = (rfa_pwr[3] << 24) | (rfa_pwr[2] << 16) | (rfa_pwr[1] << 8) |
+ rfa_pwr[0];
+
+ rtl_set_bbreg(hw, regoffset[index], 0x7f7f7f7f, writeval);
+}
+
+void rtl92s_phy_rf6052_set_ofdmtxpower(struct ieee80211_hw *hw,
+ u8 *p_pwrlevel, u8 chnl)
+{
+ u32 writeval, pwrbase0, pwrbase1;
+ u8 index = 0;
+ u8 finalpwr_idx[4];
+
+ _rtl92s_get_powerbase(hw, p_pwrlevel, chnl, &pwrbase0, &pwrbase1,
+ &finalpwr_idx[0]);
+ _rtl92s_set_antennadiff(hw, &finalpwr_idx[0]);
+
+ for (index = 0; index < 6; index++) {
+ _rtl92s_get_txpower_writeval_byregulatory(hw, chnl, index,
+ pwrbase0, pwrbase1, &writeval);
+
+ _rtl92s_write_ofdm_powerreg(hw, index, writeval);
+ }
+}
+
+void rtl92s_phy_rf6052_set_ccktxpower(struct ieee80211_hw *hw, u8 pwrlevel)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+ struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
+ u32 txagc = 0;
+ bool dont_inc_cck_or_turboscanoff = false;
+
+ if (((rtlefuse->eeprom_version >= 2) &&
+ (rtlefuse->txpwr_safetyflag == 1)) ||
+ ((rtlefuse->eeprom_version >= 2) &&
+ (rtlefuse->eeprom_regulatory != 0)))
+ dont_inc_cck_or_turboscanoff = true;
+
+ if (mac->act_scanning == true) {
+ txagc = 0x3f;
+ if (dont_inc_cck_or_turboscanoff)
+ txagc = pwrlevel;
+ } else {
+ txagc = pwrlevel;
+
+ if (rtlpriv->dm.dynamic_txhighpower_lvl ==
+ TX_HIGH_PWR_LEVEL_LEVEL1)
+ txagc = 0x10;
+ else if (rtlpriv->dm.dynamic_txhighpower_lvl ==
+ TX_HIGH_PWR_LEVEL_LEVEL2)
+ txagc = 0x0;
+ }
+
+ if (txagc > RF6052_MAX_TX_PWR)
+ txagc = RF6052_MAX_TX_PWR;
+
+ rtl_set_bbreg(hw, RTXAGC_CCK_MCS32, BTX_AGCRATECCK, txagc);
+
+}
+
+bool rtl92s_phy_rf6052_config(struct ieee80211_hw *hw)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_phy *rtlphy = &(rtlpriv->phy);
+ u32 u4reg_val = 0;
+ u8 rfpath;
+ bool rtstatus = true;
+ struct bb_reg_def *pphyreg;
+
+ /* Initialize RF */
+ for (rfpath = 0; rfpath < rtlphy->num_total_rfpath; rfpath++) {
+
+ pphyreg = &rtlphy->phyreg_def[rfpath];
+
+ /* Store original RFENV control type */
+ switch (rfpath) {
+ case RF90_PATH_A:
+ case RF90_PATH_C:
+ u4reg_val = rtl92s_phy_query_bb_reg(hw,
+ pphyreg->rfintfs,
+ BRFSI_RFENV);
+ break;
+ case RF90_PATH_B:
+ case RF90_PATH_D:
+ u4reg_val = rtl92s_phy_query_bb_reg(hw,
+ pphyreg->rfintfs,
+ BRFSI_RFENV << 16);
+ break;
+ }
+
+ /* Set RF_ENV enable */
+ rtl92s_phy_set_bb_reg(hw, pphyreg->rfintfe,
+ BRFSI_RFENV << 16, 0x1);
+
+ /* Set RF_ENV output high */
+ rtl92s_phy_set_bb_reg(hw, pphyreg->rfintfo, BRFSI_RFENV, 0x1);
+
+ /* Set bit number of Address and Data for RF register */
+ rtl92s_phy_set_bb_reg(hw, pphyreg->rfhssi_para2,
+ B3WIRE_ADDRESSLENGTH, 0x0);
+ rtl92s_phy_set_bb_reg(hw, pphyreg->rfhssi_para2,
+ B3WIRE_DATALENGTH, 0x0);
+
+ /* Initialize RF fom connfiguration file */
+ switch (rfpath) {
+ case RF90_PATH_A:
+ rtstatus = rtl92s_phy_config_rf(hw,
+ (enum radio_path)rfpath);
+ break;
+ case RF90_PATH_B:
+ rtstatus = rtl92s_phy_config_rf(hw,
+ (enum radio_path)rfpath);
+ break;
+ case RF90_PATH_C:
+ break;
+ case RF90_PATH_D:
+ break;
+ }
+
+ /* Restore RFENV control type */
+ switch (rfpath) {
+ case RF90_PATH_A:
+ case RF90_PATH_C:
+ rtl92s_phy_set_bb_reg(hw, pphyreg->rfintfs, BRFSI_RFENV,
+ u4reg_val);
+ break;
+ case RF90_PATH_B:
+ case RF90_PATH_D:
+ rtl92s_phy_set_bb_reg(hw, pphyreg->rfintfs,
+ BRFSI_RFENV << 16,
+ u4reg_val);
+ break;
+ }
+
+ if (rtstatus != true) {
+ printk(KERN_ERR "Radio[%d] Fail!!", rfpath);
+ goto fail;
+ }
+
+ }
+
+ return rtstatus;
+
+fail:
+ return rtstatus;
+}
+
+void rtl92s_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_phy *rtlphy = &(rtlpriv->phy);
+
+ switch (bandwidth) {
+ case HT_CHANNEL_WIDTH_20:
+ rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
+ 0xfffff3ff) | 0x0400);
+ rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
+ rtlphy->rfreg_chnlval[0]);
+ break;
+ case HT_CHANNEL_WIDTH_20_40:
+ rtlphy->rfreg_chnlval[0] = ((rtlphy->rfreg_chnlval[0] &
+ 0xfffff3ff));
+ rtl_set_rfreg(hw, RF90_PATH_A, RF_CHNLBW, RFREG_OFFSET_MASK,
+ rtlphy->rfreg_chnlval[0]);
+ break;
+ default:
+ RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+ ("unknown bandwidth: %#X\n",
+ bandwidth));
+ break;
+ }
+}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-11 09:41:22 +0000