rtl8188eu/hal/phydm/phydm_primary_cca.c

174 lines
4.7 KiB
C

/******************************************************************************
*
* Copyright(c) 2007 - 2017 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.
*
* 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 files
************************************************************/
#include "mp_precomp.h"
#include "phydm_precomp.h"
#ifdef PHYDM_PRIMARY_CCA
void phydm_write_dynamic_cca(
void *dm_void,
u8 curr_mf_state
)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *pri_cca = &dm->dm_pri_cca;
if (pri_cca->mf_state == curr_mf_state)
return;
if (dm->support_ic_type & ODM_IC_11N_SERIES) {
if (curr_mf_state == MF_USC_LSC) {
odm_set_bb_reg(dm, R_0xc6c, 0x180, MF_USC_LSC);
/*@40M OFDM MF CCA threshold*/
odm_set_bb_reg(dm, R_0xc84, 0xf0000000,
pri_cca->cca_th_40m_bkp);
} else {
odm_set_bb_reg(dm, R_0xc6c, 0x180, curr_mf_state);
/*@40M OFDM MF CCA threshold*/
odm_set_bb_reg(dm, R_0xc84, 0xf0000000, 0);
}
}
pri_cca->mf_state = curr_mf_state;
PHYDM_DBG(dm, DBG_PRI_CCA, "Set CCA at ((%s SB)), 0xc6c[8:7]=((%d))\n",
((curr_mf_state == MF_USC_LSC) ? "D" :
((curr_mf_state == MF_LSC) ? "L" : "U")), curr_mf_state);
}
void phydm_primary_cca_reset(
void *dm_void)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *pri_cca = &dm->dm_pri_cca;
PHYDM_DBG(dm, DBG_PRI_CCA, "[PriCCA] Reset\n");
pri_cca->mf_state = 0xff;
pri_cca->pre_bw = (enum channel_width)0xff;
phydm_write_dynamic_cca(dm, MF_USC_LSC);
}
void phydm_primary_cca_11n(
void *dm_void)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *pri_cca = &dm->dm_pri_cca;
enum channel_width curr_bw = (enum channel_width)*dm->band_width;
if (!(dm->support_ability & ODM_BB_PRIMARY_CCA))
return;
if (!dm->is_linked) {
PHYDM_DBG(dm, DBG_PRI_CCA, "[PriCCA][No Link!!!]\n");
if (pri_cca->pri_cca_is_become_linked) {
phydm_primary_cca_reset(dm);
pri_cca->pri_cca_is_become_linked = dm->is_linked;
}
return;
} else {
if (!pri_cca->pri_cca_is_become_linked) {
PHYDM_DBG(dm, DBG_PRI_CCA, "[PriCCA][Linked !!!]\n");
pri_cca->pri_cca_is_become_linked = dm->is_linked;
}
}
if (curr_bw != pri_cca->pre_bw) {
PHYDM_DBG(dm, DBG_PRI_CCA, "[Primary CCA] start ==>\n");
pri_cca->pre_bw = curr_bw;
if (curr_bw == CHANNEL_WIDTH_40) {
if (*dm->sec_ch_offset == SECOND_CH_AT_LSB) {
/* Primary CH @ upper sideband*/
PHYDM_DBG(dm, DBG_PRI_CCA,
"BW40M, Primary CH at USB\n");
phydm_write_dynamic_cca(dm, MF_USC);
} else {
/*Primary CH @ lower sideband*/
PHYDM_DBG(dm, DBG_PRI_CCA,
"BW40M, Primary CH at LSB\n");
phydm_write_dynamic_cca(dm, MF_LSC);
}
} else {
PHYDM_DBG(dm, DBG_PRI_CCA, "Not BW40M, USB + LSB\n");
phydm_primary_cca_reset(dm);
}
}
}
boolean
odm_dynamic_primary_cca_dup_rts(void *dm_void)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *pri_cca = &dm->dm_pri_cca;
return pri_cca->dup_rts_flag;
}
void phydm_primary_cca_init(void *dm_void)
{
struct dm_struct *dm = (struct dm_struct *)dm_void;
struct phydm_pricca_struct *pri_cca = &dm->dm_pri_cca;
if (!(dm->support_ability & ODM_BB_PRIMARY_CCA))
return;
if (!(dm->support_ic_type & ODM_IC_11N_SERIES))
return;
PHYDM_DBG(dm, DBG_PRI_CCA, "[PriCCA] Init ==>\n");
#if (RTL8188E_SUPPORT == 1) || (RTL8192E_SUPPORT == 1)
pri_cca->dup_rts_flag = 0;
pri_cca->intf_flag = 0;
pri_cca->intf_type = 0;
pri_cca->monitor_flag = 0;
pri_cca->pri_cca_flag = 0;
pri_cca->ch_offset = 0;
#endif
pri_cca->mf_state = 0xff;
pri_cca->pre_bw = (enum channel_width)0xff;
pri_cca->cca_th_40m_bkp = (u8)odm_get_bb_reg(dm, R_0xc84, 0xf0000000);
}
void phydm_primary_cca(void *dm_void)
{
#ifdef PHYDM_PRIMARY_CCA
struct dm_struct *dm = (struct dm_struct *)dm_void;
if (!(dm->support_ic_type & ODM_IC_11N_SERIES))
return;
if (!(dm->support_ability & ODM_BB_PRIMARY_CCA))
return;
phydm_primary_cca_11n(dm);
#endif
}
#endif