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rtw89: 8852c: add write/read crystal function in CFO tracking

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The CFO tracking algorithm is the same, but control methods are different.
Set parameters via xtal serial interfaces (SI).

Signed-off-by: Yuan-Han Zhang <yuanhan1020@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220317055543.40514-3-pkshih@realtek.com
This commit is contained in:
Yuan-Han Zhang 2022-03-17 13:55:33 +08:00 committed by Kalle Valo
parent b7379148f5
commit 8379fa6115
2 changed files with 17 additions and 4 deletions
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2
drivers/net/wireless/realtek/rtw89/mac.h
View File

@ -884,7 +884,9 @@ int rtw89_mac_get_tx_retry_limit(struct rtw89_dev *rtwdev,
enum rtw89_mac_xtal_si_offset {
XTAL_SI_XTAL_SC_XI = 0x04,
#define XTAL_SC_XI_MASK GENMASK(7, 0)
XTAL_SI_XTAL_SC_XO = 0x05,
#define XTAL_SC_XO_MASK GENMASK(7, 0)
XTAL_SI_PWR_CUT = 0x10,
#define XTAL_SI_SMALL_PWR_CUT BIT(0)
#define XTAL_SI_BIG_PWR_CUT BIT(1)

19
drivers/net/wireless/realtek/rtw89/phy.c
View File

@ -4,6 +4,7 @@
#include "debug.h"
#include "fw.h"
#include "mac.h"
#include "phy.h"
#include "ps.h"
#include "reg.h"
@ -1667,15 +1668,25 @@ static void rtw89_phy_cfo_set_crystal_cap(struct rtw89_dev *rtwdev,
u8 crystal_cap, bool force)
{
struct rtw89_cfo_tracking_info *cfo = &rtwdev->cfo_tracking;
const struct rtw89_chip_info *chip = rtwdev->chip;
u8 sc_xi_val, sc_xo_val;
if (!force && cfo->crystal_cap == crystal_cap)
return;
crystal_cap = clamp_t(u8, crystal_cap, 0, 127);
rtw89_phy_cfo_set_xcap_reg(rtwdev, true, crystal_cap);
rtw89_phy_cfo_set_xcap_reg(rtwdev, false, crystal_cap);
sc_xo_val = rtw89_phy_cfo_get_xcap_reg(rtwdev, true);
sc_xi_val = rtw89_phy_cfo_get_xcap_reg(rtwdev, false);
if (chip->chip_id == RTL8852A) {
rtw89_phy_cfo_set_xcap_reg(rtwdev, true, crystal_cap);
rtw89_phy_cfo_set_xcap_reg(rtwdev, false, crystal_cap);
sc_xo_val = rtw89_phy_cfo_get_xcap_reg(rtwdev, true);
sc_xi_val = rtw89_phy_cfo_get_xcap_reg(rtwdev, false);
} else {
rtw89_mac_write_xtal_si(rtwdev, XTAL_SI_XTAL_SC_XO,
crystal_cap, XTAL_SC_XO_MASK);
rtw89_mac_write_xtal_si(rtwdev, XTAL_SI_XTAL_SC_XI,
crystal_cap, XTAL_SC_XI_MASK);
rtw89_mac_read_xtal_si(rtwdev, XTAL_SI_XTAL_SC_XO, &sc_xo_val);
rtw89_mac_read_xtal_si(rtwdev, XTAL_SI_XTAL_SC_XI, &sc_xi_val);
}
cfo->crystal_cap = sc_xi_val;
cfo->x_cap_ofst = (s8)((int)cfo->crystal_cap - cfo->def_x_cap);