root/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/phy.c
// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2009-2012  Realtek Corporation.*/

#include "../wifi.h"
#include "../pci.h"
#include "../ps.h"
#include "../core.h"
#include "reg.h"
#include "def.h"
#include "phy.h"
#include "../rtl8192c/phy_common.h"
#include "rf.h"
#include "dm.h"
#include "../rtl8192c/dm_common.h"
#include "../rtl8192c/fw_common.h"
#include "table.h"

u32 rtl92cu_phy_query_rf_reg(struct ieee80211_hw *hw,
                             enum radio_path rfpath, u32 regaddr, u32 bitmask)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        u32 original_value, readback_value, bitshift;
        struct rtl_phy *rtlphy = &(rtlpriv->phy);

        rtl_dbg(rtlpriv, COMP_RF, DBG_TRACE,
                "regaddr(%#x), rfpath(%#x), bitmask(%#x)\n",
                regaddr, rfpath, bitmask);
        if (rtlphy->rf_mode != RF_OP_BY_FW) {
                original_value = _rtl92c_phy_rf_serial_read(hw,
                                                            rfpath, regaddr);
        } else {
                original_value = _rtl92c_phy_fw_rf_serial_read(hw,
                                                               rfpath, regaddr);
        }
        bitshift = calculate_bit_shift(bitmask);
        readback_value = (original_value & bitmask) >> bitshift;
        rtl_dbg(rtlpriv, COMP_RF, DBG_TRACE,
                "regaddr(%#x), rfpath(%#x), bitmask(%#x), original_value(%#x)\n",
                regaddr, rfpath, bitmask, original_value);
        return readback_value;
}

void rtl92cu_phy_set_rf_reg(struct ieee80211_hw *hw,
                            enum radio_path rfpath,
                            u32 regaddr, u32 bitmask, u32 data)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_phy *rtlphy = &(rtlpriv->phy);
        u32 original_value, bitshift;

        rtl_dbg(rtlpriv, COMP_RF, DBG_TRACE,
                "regaddr(%#x), bitmask(%#x), data(%#x), rfpath(%#x)\n",
                regaddr, bitmask, data, rfpath);
        if (rtlphy->rf_mode != RF_OP_BY_FW) {
                if (bitmask != RFREG_OFFSET_MASK) {
                        original_value = _rtl92c_phy_rf_serial_read(hw,
                                                                    rfpath,
                                                                    regaddr);
                        bitshift = calculate_bit_shift(bitmask);
                        data =
                            ((original_value & (~bitmask)) |
                             (data << bitshift));
                }
                _rtl92c_phy_rf_serial_write(hw, rfpath, regaddr, data);
        } else {
                if (bitmask != RFREG_OFFSET_MASK) {
                        original_value = _rtl92c_phy_fw_rf_serial_read(hw,
                                                                       rfpath,
                                                                       regaddr);
                        bitshift = calculate_bit_shift(bitmask);
                        data =
                            ((original_value & (~bitmask)) |
                             (data << bitshift));
                }
                _rtl92c_phy_fw_rf_serial_write(hw, rfpath, regaddr, data);
        }
        rtl_dbg(rtlpriv, COMP_RF, DBG_TRACE,
                "regaddr(%#x), bitmask(%#x), data(%#x), rfpath(%#x)\n",
                regaddr, bitmask, data, rfpath);
}

bool rtl92cu_phy_mac_config(struct ieee80211_hw *hw)
{
        bool rtstatus;

        rtstatus = _rtl92cu_phy_config_mac_with_headerfile(hw);
        return rtstatus;
}

bool rtl92cu_phy_bb_config(struct ieee80211_hw *hw)
{
        bool rtstatus = true;
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        u16 regval;
        u32 regval32;
        u8 b_reg_hwparafile = 1;

        _rtl92c_phy_init_bb_rf_register_definition(hw);
        regval = rtl_read_word(rtlpriv, REG_SYS_FUNC_EN);
        rtl_write_word(rtlpriv, REG_SYS_FUNC_EN, regval | BIT(13) |
                       BIT(0) | BIT(1));
        rtl_write_byte(rtlpriv, REG_AFE_PLL_CTRL, 0x83);
        rtl_write_byte(rtlpriv, REG_AFE_PLL_CTRL + 1, 0xdb);
        rtl_write_byte(rtlpriv, REG_RF_CTRL, RF_EN | RF_RSTB | RF_SDMRSTB);
        rtl_write_byte(rtlpriv, REG_SYS_FUNC_EN, FEN_USBA | FEN_USBD |
                       FEN_BB_GLB_RSTN | FEN_BBRSTB);
        regval32 = rtl_read_dword(rtlpriv, 0x87c);
        rtl_write_dword(rtlpriv, 0x87c, regval32 & (~BIT(31)));
        rtl_write_byte(rtlpriv, REG_LDOHCI12_CTRL, 0x0f);
        rtl_write_byte(rtlpriv, REG_AFE_XTAL_CTRL + 1, 0x80);
        if (b_reg_hwparafile == 1)
                rtstatus = _rtl92c_phy_bb8192c_config_parafile(hw);
        return rtstatus;
}

bool _rtl92cu_phy_config_mac_with_headerfile(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_phy *rtlphy = &(rtlpriv->phy);
        u32 i;
        u32 arraylength;
        u32 *ptrarray;

        rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE, "Read Rtl819XMACPHY_ARRAY\n");
        arraylength =  rtlphy->hwparam_tables[MAC_REG].length ;
        ptrarray = rtlphy->hwparam_tables[MAC_REG].pdata;
        rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE, "Img:RTL8192CUMAC_2T_ARRAY\n");
        for (i = 0; i < arraylength; i = i + 2)
                rtl_write_byte(rtlpriv, ptrarray[i], (u8) ptrarray[i + 1]);
        return true;
}

bool _rtl92cu_phy_config_bb_with_headerfile(struct ieee80211_hw *hw,
                                            u8 configtype)
{
        int i;
        u32 *phy_regarray_table;
        u32 *agctab_array_table;
        u16 phy_reg_arraylen, agctab_arraylen;
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
        struct rtl_phy *rtlphy = &(rtlpriv->phy);

        if (IS_92C_SERIAL(rtlhal->version)) {
                agctab_arraylen = rtlphy->hwparam_tables[AGCTAB_2T].length;
                agctab_array_table =  rtlphy->hwparam_tables[AGCTAB_2T].pdata;
                phy_reg_arraylen = rtlphy->hwparam_tables[PHY_REG_2T].length;
                phy_regarray_table = rtlphy->hwparam_tables[PHY_REG_2T].pdata;
        } else {
                agctab_arraylen = rtlphy->hwparam_tables[AGCTAB_1T].length;
                agctab_array_table =  rtlphy->hwparam_tables[AGCTAB_1T].pdata;
                phy_reg_arraylen = rtlphy->hwparam_tables[PHY_REG_1T].length;
                phy_regarray_table = rtlphy->hwparam_tables[PHY_REG_1T].pdata;
        }
        if (configtype == BASEBAND_CONFIG_PHY_REG) {
                for (i = 0; i < phy_reg_arraylen; i = i + 2) {
                        rtl_addr_delay(phy_regarray_table[i]);
                        rtl_set_bbreg(hw, phy_regarray_table[i], MASKDWORD,
                                      phy_regarray_table[i + 1]);
                        udelay(1);
                        rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
                                "The phy_regarray_table[0] is %x Rtl819XPHY_REGARRAY[1] is %x\n",
                                phy_regarray_table[i],
                                phy_regarray_table[i + 1]);
                }
        } else if (configtype == BASEBAND_CONFIG_AGC_TAB) {
                for (i = 0; i < agctab_arraylen; i = i + 2) {
                        rtl_set_bbreg(hw, agctab_array_table[i], MASKDWORD,
                                      agctab_array_table[i + 1]);
                        udelay(1);
                        rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
                                "The agctab_array_table[0] is %x Rtl819XPHY_REGARRAY[1] is %x\n",
                                agctab_array_table[i],
                                agctab_array_table[i + 1]);
                }
        }
        return true;
}

bool _rtl92cu_phy_config_bb_with_pgheaderfile(struct ieee80211_hw *hw,
                                              u8 configtype)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_phy *rtlphy = &(rtlpriv->phy);
        int i;
        u32 *phy_regarray_table_pg;
        u16 phy_regarray_pg_len;

        rtlphy->pwrgroup_cnt = 0;
        phy_regarray_pg_len = rtlphy->hwparam_tables[PHY_REG_PG].length;
        phy_regarray_table_pg = rtlphy->hwparam_tables[PHY_REG_PG].pdata;
        if (configtype == BASEBAND_CONFIG_PHY_REG) {
                for (i = 0; i < phy_regarray_pg_len; i = i + 3) {
                        rtl_addr_delay(phy_regarray_table_pg[i]);
                        _rtl92c_store_pwrindex_diffrate_offset(hw,
                                                  phy_regarray_table_pg[i],
                                                  phy_regarray_table_pg[i + 1],
                                                  phy_regarray_table_pg[i + 2]);
                }
        } else {
                rtl_dbg(rtlpriv, COMP_SEND, DBG_TRACE,
                        "configtype != BaseBand_Config_PHY_REG\n");
        }
        return true;
}

bool rtl92cu_phy_config_rf_with_headerfile(struct ieee80211_hw *hw,
                                          enum radio_path rfpath)
{
        int i;
        u32 *radioa_array_table;
        u32 *radiob_array_table;
        u16 radioa_arraylen, radiob_arraylen;
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
        struct rtl_phy *rtlphy = &(rtlpriv->phy);

        if (IS_92C_SERIAL(rtlhal->version)) {
                radioa_arraylen = rtlphy->hwparam_tables[RADIOA_2T].length;
                radioa_array_table = rtlphy->hwparam_tables[RADIOA_2T].pdata;
                radiob_arraylen = rtlphy->hwparam_tables[RADIOB_2T].length;
                radiob_array_table = rtlphy->hwparam_tables[RADIOB_2T].pdata;
                rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
                        "Radio_A:RTL8192CURADIOA_2TARRAY\n");
                rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
                        "Radio_B:RTL8192CU_RADIOB_2TARRAY\n");
        } else {
                radioa_arraylen = rtlphy->hwparam_tables[RADIOA_1T].length;
                radioa_array_table = rtlphy->hwparam_tables[RADIOA_1T].pdata;
                radiob_arraylen = rtlphy->hwparam_tables[RADIOB_1T].length;
                radiob_array_table = rtlphy->hwparam_tables[RADIOB_1T].pdata;
                rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
                        "Radio_A:RTL8192CU_RADIOA_1TARRAY\n");
                rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE,
                        "Radio_B:RTL8192CU_RADIOB_1TARRAY\n");
        }
        rtl_dbg(rtlpriv, COMP_INIT, DBG_TRACE, "Radio No %x\n", rfpath);
        switch (rfpath) {
        case RF90_PATH_A:
                for (i = 0; i < radioa_arraylen; i = i + 2) {
                        rtl_rfreg_delay(hw, rfpath, radioa_array_table[i],
                                        RFREG_OFFSET_MASK,
                                        radioa_array_table[i + 1]);
                }
                break;
        case RF90_PATH_B:
                for (i = 0; i < radiob_arraylen; i = i + 2) {
                        rtl_rfreg_delay(hw, rfpath, radiob_array_table[i],
                                        RFREG_OFFSET_MASK,
                                        radiob_array_table[i + 1]);
                }
                break;
        case RF90_PATH_C:
        case RF90_PATH_D:
                pr_err("switch case %#x not processed\n", rfpath);
                break;
        default:
                break;
        }
        return true;
}

void rtl92cu_phy_set_bw_mode_callback(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
        struct rtl_phy *rtlphy = &(rtlpriv->phy);
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
        u8 reg_bw_opmode;
        u8 reg_prsr_rsc;

        rtl_dbg(rtlpriv, COMP_SCAN, DBG_TRACE, "Switch to %s bandwidth\n",
                rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20 ?
                "20MHz" : "40MHz");
        if (is_hal_stop(rtlhal)) {
                rtlphy->set_bwmode_inprogress = false;
                return;
        }
        reg_bw_opmode = rtl_read_byte(rtlpriv, REG_BWOPMODE);
        reg_prsr_rsc = rtl_read_byte(rtlpriv, REG_RRSR + 2);
        switch (rtlphy->current_chan_bw) {
        case HT_CHANNEL_WIDTH_20:
                reg_bw_opmode |= BW_OPMODE_20MHZ;
                rtl_write_byte(rtlpriv, REG_BWOPMODE, reg_bw_opmode);
                break;
        case HT_CHANNEL_WIDTH_20_40:
                reg_bw_opmode &= ~BW_OPMODE_20MHZ;
                rtl_write_byte(rtlpriv, REG_BWOPMODE, reg_bw_opmode);
                reg_prsr_rsc =
                    (reg_prsr_rsc & 0x90) | (mac->cur_40_prime_sc << 5);
                rtl_write_byte(rtlpriv, REG_RRSR + 2, reg_prsr_rsc);
                break;
        default:
                pr_err("unknown bandwidth: %#X\n",
                       rtlphy->current_chan_bw);
                break;
        }
        switch (rtlphy->current_chan_bw) {
        case HT_CHANNEL_WIDTH_20:
                rtl_set_bbreg(hw, RFPGA0_RFMOD, BRFMOD, 0x0);
                rtl_set_bbreg(hw, RFPGA1_RFMOD, BRFMOD, 0x0);
                rtl_set_bbreg(hw, RFPGA0_ANALOGPARAMETER2, BIT(10), 1);
                break;
        case HT_CHANNEL_WIDTH_20_40:
                rtl_set_bbreg(hw, RFPGA0_RFMOD, BRFMOD, 0x1);
                rtl_set_bbreg(hw, RFPGA1_RFMOD, BRFMOD, 0x1);
                rtl_set_bbreg(hw, RCCK0_SYSTEM, BCCK_SIDEBAND,
                              (mac->cur_40_prime_sc >> 1));
                rtl_set_bbreg(hw, ROFDM1_LSTF, 0xC00, mac->cur_40_prime_sc);
                rtl_set_bbreg(hw, RFPGA0_ANALOGPARAMETER2, BIT(10), 0);
                rtl_set_bbreg(hw, 0x818, (BIT(26) | BIT(27)),
                              (mac->cur_40_prime_sc ==
                               HAL_PRIME_CHNL_OFFSET_LOWER) ? 2 : 1);
                break;
        default:
                pr_err("unknown bandwidth: %#X\n",
                       rtlphy->current_chan_bw);
                break;
        }
        rtl92cu_phy_rf6052_set_bandwidth(hw, rtlphy->current_chan_bw);
        rtlphy->set_bwmode_inprogress = false;
        rtl_dbg(rtlpriv, COMP_SCAN, DBG_TRACE, "<==\n");
}

void rtl92cu_bb_block_on(struct ieee80211_hw *hw)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);

        mutex_lock(&rtlpriv->io.bb_mutex);
        rtl_set_bbreg(hw, RFPGA0_RFMOD, BCCKEN, 0x1);
        rtl_set_bbreg(hw, RFPGA0_RFMOD, BOFDMEN, 0x1);
        mutex_unlock(&rtlpriv->io.bb_mutex);
}

void _rtl92cu_phy_lc_calibrate(struct ieee80211_hw *hw, bool is2t)
{
        u8 tmpreg;
        u32 rf_a_mode = 0, rf_b_mode = 0, lc_cal;
        struct rtl_priv *rtlpriv = rtl_priv(hw);

        tmpreg = rtl_read_byte(rtlpriv, 0xd03);

        if ((tmpreg & 0x70) != 0)
                rtl_write_byte(rtlpriv, 0xd03, tmpreg & 0x8F);
        else
                rtl_write_byte(rtlpriv, REG_TXPAUSE, 0xFF);

        if ((tmpreg & 0x70) != 0) {
                rf_a_mode = rtl_get_rfreg(hw, RF90_PATH_A, 0x00, MASK12BITS);
                if (is2t)
                        rf_b_mode = rtl_get_rfreg(hw, RF90_PATH_B, 0x00,
                                                  MASK12BITS);
                rtl_set_rfreg(hw, RF90_PATH_A, 0x00, MASK12BITS,
                              (rf_a_mode & 0x8FFFF) | 0x10000);
                if (is2t)
                        rtl_set_rfreg(hw, RF90_PATH_B, 0x00, MASK12BITS,
                                      (rf_b_mode & 0x8FFFF) | 0x10000);
        }
        lc_cal = rtl_get_rfreg(hw, RF90_PATH_A, 0x18, MASK12BITS);
        rtl_set_rfreg(hw, RF90_PATH_A, 0x18, MASK12BITS, lc_cal | 0x08000);
        mdelay(100);
        if ((tmpreg & 0x70) != 0) {
                rtl_write_byte(rtlpriv, 0xd03, tmpreg);
                rtl_set_rfreg(hw, RF90_PATH_A, 0x00, MASK12BITS, rf_a_mode);
                if (is2t)
                        rtl_set_rfreg(hw, RF90_PATH_B, 0x00, MASK12BITS,
                                      rf_b_mode);
        } else {
                rtl_write_byte(rtlpriv, REG_TXPAUSE, 0x00);
        }
}

static bool _rtl92cu_phy_set_rf_power_state(struct ieee80211_hw *hw,
                                            enum rf_pwrstate rfpwr_state)
{
        struct rtl_priv *rtlpriv = rtl_priv(hw);
        struct rtl_pci_priv *pcipriv = rtl_pcipriv(hw);
        struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
        bool bresult = true;
        u8 i, queue_id;
        struct rtl8192_tx_ring *ring = NULL;

        switch (rfpwr_state) {
        case ERFON:
                if ((ppsc->rfpwr_state == ERFOFF) &&
                    RT_IN_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC)) {
                        bool rtstatus;
                        u32 init_count = 0;

                        do {
                                init_count++;
                                rtl_dbg(rtlpriv, COMP_RF, DBG_DMESG,
                                        "IPS Set eRf nic enable\n");
                                rtstatus = rtl_ps_enable_nic(hw);
                        } while (!rtstatus && (init_count < 10));
                        RT_CLEAR_PS_LEVEL(ppsc,
                                          RT_RF_OFF_LEVL_HALT_NIC);
                } else {
                        rtl_dbg(rtlpriv, COMP_RF, DBG_DMESG,
                                "Set ERFON slept:%d ms\n",
                                jiffies_to_msecs(jiffies -
                                                 ppsc->last_sleep_jiffies));
                        ppsc->last_awake_jiffies = jiffies;
                        rtl92ce_phy_set_rf_on(hw);
                }
                if (mac->link_state == MAC80211_LINKED) {
                        rtlpriv->cfg->ops->led_control(hw,
                                                       LED_CTL_LINK);
                } else {
                        rtlpriv->cfg->ops->led_control(hw,
                                                       LED_CTL_NO_LINK);
                }
                break;
        case ERFOFF:
                for (queue_id = 0, i = 0;
                     queue_id < RTL_PCI_MAX_TX_QUEUE_COUNT;) {
                        ring = &pcipriv->dev.tx_ring[queue_id];
                        if (skb_queue_len(&ring->queue) == 0 ||
                                queue_id == BEACON_QUEUE) {
                                queue_id++;
                                continue;
                        } else {
                                rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
                                        "eRf Off/Sleep: %d times TcbBusyQueue[%d] =%d before doze!\n",
                                        i + 1,
                                        queue_id,
                                        skb_queue_len(&ring->queue));
                                udelay(10);
                                i++;
                        }
                        if (i >= MAX_DOZE_WAITING_TIMES_9x) {
                                rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
                                        "ERFOFF: %d times TcbBusyQueue[%d] = %d !\n",
                                        MAX_DOZE_WAITING_TIMES_9x,
                                        queue_id,
                                        skb_queue_len(&ring->queue));
                                break;
                        }
                }
                if (ppsc->reg_rfps_level & RT_RF_OFF_LEVL_HALT_NIC) {
                        rtl_dbg(rtlpriv, COMP_RF, DBG_DMESG,
                                "IPS Set eRf nic disable\n");
                        rtl_ps_disable_nic(hw);
                        RT_SET_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC);
                } else {
                        if (ppsc->rfoff_reason == RF_CHANGE_BY_IPS) {
                                rtlpriv->cfg->ops->led_control(hw,
                                                         LED_CTL_NO_LINK);
                        } else {
                                rtlpriv->cfg->ops->led_control(hw,
                                                         LED_CTL_POWER_OFF);
                        }
                }
                break;
        case ERFSLEEP:
                if (ppsc->rfpwr_state == ERFOFF)
                        return false;
                for (queue_id = 0, i = 0;
                     queue_id < RTL_PCI_MAX_TX_QUEUE_COUNT;) {
                        ring = &pcipriv->dev.tx_ring[queue_id];
                        if (skb_queue_len(&ring->queue) == 0) {
                                queue_id++;
                                continue;
                        } else {
                                rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
                                        "eRf Off/Sleep: %d times TcbBusyQueue[%d] =%d before doze!\n",
                                        i + 1, queue_id,
                                        skb_queue_len(&ring->queue));
                                udelay(10);
                                i++;
                        }
                        if (i >= MAX_DOZE_WAITING_TIMES_9x) {
                                rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
                                        "ERFSLEEP: %d times TcbBusyQueue[%d] = %d !\n",
                                        MAX_DOZE_WAITING_TIMES_9x,
                                        queue_id,
                                        skb_queue_len(&ring->queue));
                                break;
                        }
                }
                rtl_dbg(rtlpriv, COMP_RF, DBG_DMESG,
                        "Set ERFSLEEP awaked:%d ms\n",
                        jiffies_to_msecs(jiffies - ppsc->last_awake_jiffies));
                ppsc->last_sleep_jiffies = jiffies;
                _rtl92c_phy_set_rf_sleep(hw);
                break;
        default:
                pr_err("switch case %#x not processed\n",
                       rfpwr_state);
                bresult = false;
                break;
        }
        if (bresult)
                ppsc->rfpwr_state = rfpwr_state;
        return bresult;
}

bool rtl92cu_phy_set_rf_power_state(struct ieee80211_hw *hw,
                                    enum rf_pwrstate rfpwr_state)
{
        struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
        bool bresult = false;

        if (rfpwr_state == ppsc->rfpwr_state)
                return bresult;
        bresult = _rtl92cu_phy_set_rf_power_state(hw, rfpwr_state);
        return bresult;
}