/******************************************************************************
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*
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* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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#include "mp_precomp.h"
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#include "phydm_precomp.h"
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void
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odm_set_crystal_cap(
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void *p_dm_void,
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u8 crystal_cap
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)
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{
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#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN | ODM_CE))
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struct PHY_DM_STRUCT *p_dm_odm = (struct PHY_DM_STRUCT *)p_dm_void;
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struct _CFO_TRACKING_ *p_cfo_track = (struct _CFO_TRACKING_ *)phydm_get_structure(p_dm_odm, PHYDM_CFOTRACK);
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if (p_cfo_track->crystal_cap == crystal_cap)
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return;
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p_cfo_track->crystal_cap = crystal_cap;
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if (p_dm_odm->support_ic_type & (ODM_RTL8188E | ODM_RTL8188F)) {
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/* write 0x24[22:17] = 0x24[16:11] = crystal_cap */
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crystal_cap = crystal_cap & 0x3F;
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odm_set_bb_reg(p_dm_odm, REG_AFE_XTAL_CTRL, 0x007ff800, (crystal_cap | (crystal_cap << 6)));
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} else if (p_dm_odm->support_ic_type & ODM_RTL8812) {
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/* write 0x2C[30:25] = 0x2C[24:19] = crystal_cap */
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crystal_cap = crystal_cap & 0x3F;
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odm_set_bb_reg(p_dm_odm, REG_MAC_PHY_CTRL, 0x7FF80000, (crystal_cap | (crystal_cap << 6)));
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} else if ((p_dm_odm->support_ic_type & (ODM_RTL8703B | ODM_RTL8723B | ODM_RTL8192E | ODM_RTL8821))) {
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/* 0x2C[23:18] = 0x2C[17:12] = crystal_cap */
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crystal_cap = crystal_cap & 0x3F;
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odm_set_bb_reg(p_dm_odm, REG_MAC_PHY_CTRL, 0x00FFF000, (crystal_cap | (crystal_cap << 6)));
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} else if (p_dm_odm->support_ic_type & ODM_RTL8814A) {
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/* write 0x2C[26:21] = 0x2C[20:15] = crystal_cap */
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crystal_cap = crystal_cap & 0x3F;
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odm_set_bb_reg(p_dm_odm, REG_MAC_PHY_CTRL, 0x07FF8000, (crystal_cap | (crystal_cap << 6)));
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} else if (p_dm_odm->support_ic_type & (ODM_RTL8822B | ODM_RTL8821C)) {
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/* write 0x24[30:25] = 0x28[6:1] = crystal_cap */
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crystal_cap = crystal_cap & 0x3F;
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odm_set_bb_reg(p_dm_odm, REG_AFE_XTAL_CTRL, 0x7e000000, crystal_cap);
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odm_set_bb_reg(p_dm_odm, REG_AFE_PLL_CTRL, 0x7e, crystal_cap);
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} else {
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_set_crystal_cap(): Use default setting.\n"));
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odm_set_bb_reg(p_dm_odm, REG_MAC_PHY_CTRL, 0xFFF000, (crystal_cap | (crystal_cap << 6)));
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}
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_set_crystal_cap(): crystal_cap = 0x%x\n", crystal_cap));
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#endif
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}
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u8
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odm_get_default_crytaltal_cap(
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void *p_dm_void
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)
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{
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struct PHY_DM_STRUCT *p_dm_odm = (struct PHY_DM_STRUCT *)p_dm_void;
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u8 crystal_cap = 0x20;
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#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN | ODM_CE))
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struct _ADAPTER *adapter = p_dm_odm->adapter;
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HAL_DATA_TYPE *p_hal_data = GET_HAL_DATA(adapter);
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crystal_cap = p_hal_data->crystal_cap;
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#else
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struct rtl8192cd_priv *priv = p_dm_odm->priv;
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if (priv->pmib->dot11RFEntry.xcap > 0)
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crystal_cap = priv->pmib->dot11RFEntry.xcap;
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#endif
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crystal_cap = crystal_cap & 0x3f;
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return crystal_cap;
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}
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void
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odm_set_atc_status(
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void *p_dm_void,
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bool atc_status
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)
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{
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struct PHY_DM_STRUCT *p_dm_odm = (struct PHY_DM_STRUCT *)p_dm_void;
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struct _CFO_TRACKING_ *p_cfo_track = (struct _CFO_TRACKING_ *)phydm_get_structure(p_dm_odm, PHYDM_CFOTRACK);
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if (p_cfo_track->is_atc_status == atc_status)
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return;
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odm_set_bb_reg(p_dm_odm, ODM_REG(BB_ATC, p_dm_odm), ODM_BIT(BB_ATC, p_dm_odm), atc_status);
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p_cfo_track->is_atc_status = atc_status;
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}
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bool
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odm_get_atc_status(
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void *p_dm_void
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)
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{
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bool atc_status;
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struct PHY_DM_STRUCT *p_dm_odm = (struct PHY_DM_STRUCT *)p_dm_void;
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atc_status = (bool)odm_get_bb_reg(p_dm_odm, ODM_REG(BB_ATC, p_dm_odm), ODM_BIT(BB_ATC, p_dm_odm));
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return atc_status;
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}
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void
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odm_cfo_tracking_reset(
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void *p_dm_void
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)
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{
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struct PHY_DM_STRUCT *p_dm_odm = (struct PHY_DM_STRUCT *)p_dm_void;
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struct _CFO_TRACKING_ *p_cfo_track = (struct _CFO_TRACKING_ *)phydm_get_structure(p_dm_odm, PHYDM_CFOTRACK);
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p_cfo_track->def_x_cap = odm_get_default_crytaltal_cap(p_dm_odm);
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p_cfo_track->is_adjust = true;
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if (p_cfo_track->crystal_cap > p_cfo_track->def_x_cap) {
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odm_set_crystal_cap(p_dm_odm, p_cfo_track->crystal_cap - 1);
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD,
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("odm_cfo_tracking_reset(): approch default value (0x%x)\n", p_cfo_track->crystal_cap));
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} else if (p_cfo_track->crystal_cap < p_cfo_track->def_x_cap) {
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odm_set_crystal_cap(p_dm_odm, p_cfo_track->crystal_cap + 1);
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD,
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("odm_cfo_tracking_reset(): approch default value (0x%x)\n", p_cfo_track->crystal_cap));
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}
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#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN | ODM_CE))
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odm_set_atc_status(p_dm_odm, true);
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#endif
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}
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void
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odm_cfo_tracking_init(
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void *p_dm_void
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)
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{
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struct PHY_DM_STRUCT *p_dm_odm = (struct PHY_DM_STRUCT *)p_dm_void;
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struct _CFO_TRACKING_ *p_cfo_track = (struct _CFO_TRACKING_ *)phydm_get_structure(p_dm_odm, PHYDM_CFOTRACK);
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p_cfo_track->def_x_cap = p_cfo_track->crystal_cap = odm_get_default_crytaltal_cap(p_dm_odm);
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p_cfo_track->is_atc_status = odm_get_atc_status(p_dm_odm);
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p_cfo_track->is_adjust = true;
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking_init()=========>\n"));
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("ODM_CfoTracking_init(): is_atc_status = %d, crystal_cap = 0x%x\n", p_cfo_track->is_atc_status, p_cfo_track->def_x_cap));
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#if RTL8822B_SUPPORT
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/* Crystal cap. control by WiFi */
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if (p_dm_odm->support_ic_type & ODM_RTL8822B)
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odm_set_bb_reg(p_dm_odm, 0x10, 0x40, 0x1);
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#endif
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#if RTL8821C_SUPPORT
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/* Crystal cap. control by WiFi */
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if (p_dm_odm->support_ic_type & ODM_RTL8821C)
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odm_set_bb_reg(p_dm_odm, 0x10, 0x40, 0x1);
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#endif
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}
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void
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odm_cfo_tracking(
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void *p_dm_void
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)
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{
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struct PHY_DM_STRUCT *p_dm_odm = (struct PHY_DM_STRUCT *)p_dm_void;
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struct _CFO_TRACKING_ *p_cfo_track = (struct _CFO_TRACKING_ *)phydm_get_structure(p_dm_odm, PHYDM_CFOTRACK);
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s32 CFO_ave = 0;
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u32 CFO_rpt_sum, cfo_khz_avg[4] = {0};
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s32 CFO_ave_diff;
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s8 crystal_cap = p_cfo_track->crystal_cap;
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u8 adjust_xtal = 1, i, valid_path_cnt = 0;
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/* 4 Support ability */
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if (!(p_dm_odm->support_ability & ODM_BB_CFO_TRACKING)) {
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_cfo_tracking(): Return: support_ability ODM_BB_CFO_TRACKING is disabled\n"));
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return;
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}
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_cfo_tracking()=========>\n"));
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if (!p_dm_odm->is_linked || !p_dm_odm->is_one_entry_only) {
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/* 4 No link or more than one entry */
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odm_cfo_tracking_reset(p_dm_odm);
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_cfo_tracking(): Reset: is_linked = %d, is_one_entry_only = %d\n",
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p_dm_odm->is_linked, p_dm_odm->is_one_entry_only));
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} else {
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/* 3 1. CFO Tracking */
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/* 4 1.1 No new packet */
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if (p_cfo_track->packet_count == p_cfo_track->packet_count_pre) {
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_cfo_tracking(): packet counter doesn't change\n"));
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return;
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}
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p_cfo_track->packet_count_pre = p_cfo_track->packet_count;
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/* 4 1.2 Calculate CFO */
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for (i = 0; i < p_dm_odm->num_rf_path; i++) {
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if (p_cfo_track->CFO_cnt[i] == 0)
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continue;
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valid_path_cnt++;
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CFO_rpt_sum = (u32)((p_cfo_track->CFO_tail[i] < 0) ? (0 - p_cfo_track->CFO_tail[i]) : p_cfo_track->CFO_tail[i]);
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cfo_khz_avg[i] = CFO_HW_RPT_2_MHZ(CFO_rpt_sum) / p_cfo_track->CFO_cnt[i];
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("[path %d] CFO_rpt_sum = (( %d )), CFO_cnt = (( %d )) , CFO_avg= (( %s%d )) kHz\n",
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i, CFO_rpt_sum, p_cfo_track->CFO_cnt[i], ((p_cfo_track->CFO_tail[i] < 0) ? "-" : " "), cfo_khz_avg[i]));
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}
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for (i = 0; i < valid_path_cnt; i++) {
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/* ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("path [%d], p_cfo_track->CFO_tail = %d\n", i, p_cfo_track->CFO_tail[i])); */
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if (p_cfo_track->CFO_tail[i] < 0) {
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CFO_ave += (0 - (s32)cfo_khz_avg[i]);
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/* ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("CFO_ave = %d\n", CFO_ave)); */
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} else
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CFO_ave += (s32)cfo_khz_avg[i];
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}
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if (valid_path_cnt >= 2)
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CFO_ave = CFO_ave / valid_path_cnt;
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("valid_path_cnt = ((%d)), CFO_ave = ((%d kHz))\n", valid_path_cnt, CFO_ave));
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/*reset counter*/
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for (i = 0; i < p_dm_odm->num_rf_path; i++) {
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p_cfo_track->CFO_tail[i] = 0;
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p_cfo_track->CFO_cnt[i] = 0;
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}
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/* 4 1.3 Avoid abnormal large CFO */
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CFO_ave_diff = (p_cfo_track->CFO_ave_pre >= CFO_ave) ? (p_cfo_track->CFO_ave_pre - CFO_ave) : (CFO_ave - p_cfo_track->CFO_ave_pre);
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if (CFO_ave_diff > 20 && p_cfo_track->large_cfo_hit == 0 && !p_cfo_track->is_adjust) {
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_cfo_tracking(): first large CFO hit\n"));
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p_cfo_track->large_cfo_hit = 1;
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return;
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} else
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p_cfo_track->large_cfo_hit = 0;
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p_cfo_track->CFO_ave_pre = CFO_ave;
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/* 4 1.4 Dynamic Xtal threshold */
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if (p_cfo_track->is_adjust == false) {
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if (CFO_ave > CFO_TH_XTAL_HIGH || CFO_ave < (-CFO_TH_XTAL_HIGH))
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p_cfo_track->is_adjust = true;
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} else {
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if (CFO_ave < CFO_TH_XTAL_LOW && CFO_ave > (-CFO_TH_XTAL_LOW))
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p_cfo_track->is_adjust = false;
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}
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#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN | ODM_CE))
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/* 4 1.5 BT case: Disable CFO tracking */
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if (p_dm_odm->is_bt_enabled) {
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p_cfo_track->is_adjust = false;
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odm_set_crystal_cap(p_dm_odm, p_cfo_track->def_x_cap);
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_cfo_tracking(): Disable CFO tracking for BT!!\n"));
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}
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#if 0
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/* 4 1.6 Big jump */
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if (p_cfo_track->is_adjust) {
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if (CFO_ave > CFO_TH_XTAL_LOW)
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adjust_xtal = adjust_xtal + ((CFO_ave - CFO_TH_XTAL_LOW) >> 2);
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else if (CFO_ave < (-CFO_TH_XTAL_LOW))
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adjust_xtal = adjust_xtal + ((CFO_TH_XTAL_LOW - CFO_ave) >> 2);
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_cfo_tracking(): Crystal cap offset = %d\n", adjust_xtal));
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}
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#endif
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#endif
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/* 4 1.7 Adjust Crystal Cap. */
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if (p_cfo_track->is_adjust) {
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if (CFO_ave > CFO_TH_XTAL_LOW)
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crystal_cap = crystal_cap + adjust_xtal;
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else if (CFO_ave < (-CFO_TH_XTAL_LOW))
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crystal_cap = crystal_cap - adjust_xtal;
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if (crystal_cap > 0x3f)
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crystal_cap = 0x3f;
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else if (crystal_cap < 0)
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crystal_cap = 0;
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odm_set_crystal_cap(p_dm_odm, (u8)crystal_cap);
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}
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_cfo_tracking(): Crystal cap = 0x%x, Default Crystal cap = 0x%x\n",
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p_cfo_track->crystal_cap, p_cfo_track->def_x_cap));
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#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN | ODM_CE))
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if (p_dm_odm->support_ic_type & ODM_IC_11AC_SERIES)
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return;
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/* 3 2. Dynamic ATC switch */
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if (CFO_ave < CFO_TH_ATC && CFO_ave > -CFO_TH_ATC) {
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odm_set_atc_status(p_dm_odm, false);
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_cfo_tracking(): Disable ATC!!\n"));
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} else {
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odm_set_atc_status(p_dm_odm, true);
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ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("odm_cfo_tracking(): Enable ATC!!\n"));
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}
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#endif
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}
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}
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void
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odm_parsing_cfo(
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void *p_dm_void,
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void *p_pktinfo_void,
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s8 *pcfotail,
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u8 num_ss
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)
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{
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struct PHY_DM_STRUCT *p_dm_odm = (struct PHY_DM_STRUCT *)p_dm_void;
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struct _odm_per_pkt_info_ *p_pktinfo = (struct _odm_per_pkt_info_ *)p_pktinfo_void;
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struct _CFO_TRACKING_ *p_cfo_track = (struct _CFO_TRACKING_ *)phydm_get_structure(p_dm_odm, PHYDM_CFOTRACK);
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u8 i;
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if (!(p_dm_odm->support_ability & ODM_BB_CFO_TRACKING))
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return;
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#if (DM_ODM_SUPPORT_TYPE & (ODM_WIN | ODM_CE))
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if (p_pktinfo->is_packet_match_bssid)
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#else
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if (p_pktinfo->station_id != 0)
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#endif
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{
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if (num_ss > p_dm_odm->num_rf_path) /*For fool proof*/
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num_ss = p_dm_odm->num_rf_path;
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/*ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("num_ss = ((%d)), p_dm_odm->num_rf_path = ((%d))\n", num_ss, p_dm_odm->num_rf_path));*/
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|
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/* 3 Update CFO report for path-A & path-B */
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/* Only paht-A and path-B have CFO tail and short CFO */
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for (i = 0; i < num_ss; i++) {
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p_cfo_track->CFO_tail[i] += pcfotail[i];
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p_cfo_track->CFO_cnt[i]++;
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/*ODM_RT_TRACE(p_dm_odm, ODM_COMP_CFO_TRACKING, ODM_DBG_LOUD, ("[ID %d][path %d][rate 0x%x] CFO_tail = ((%d)), CFO_tail_sum = ((%d)), CFO_cnt = ((%d))\n",
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p_pktinfo->station_id, i, p_pktinfo->data_rate, pcfotail[i], p_cfo_track->CFO_tail[i], p_cfo_track->CFO_cnt[i]));
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*/
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}
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/* 3 Update packet counter */
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if (p_cfo_track->packet_count == 0xffffffff)
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p_cfo_track->packet_count = 0;
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else
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p_cfo_track->packet_count++;
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}
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}
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