linux/drivers/net/wireless/mediatek/mt76/mt76x2/init.c
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   1// SPDX-License-Identifier: ISC
   2/*
   3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
   4 * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
   5 */
   6
   7#include "mt76x2.h"
   8#include "eeprom.h"
   9#include "../mt76x02_phy.h"
  10
  11static void
  12mt76x2_set_wlan_state(struct mt76x02_dev *dev, bool enable)
  13{
  14        u32 val = mt76_rr(dev, MT_WLAN_FUN_CTRL);
  15
  16        if (enable)
  17                val |= (MT_WLAN_FUN_CTRL_WLAN_EN |
  18                        MT_WLAN_FUN_CTRL_WLAN_CLK_EN);
  19        else
  20                val &= ~(MT_WLAN_FUN_CTRL_WLAN_EN |
  21                         MT_WLAN_FUN_CTRL_WLAN_CLK_EN);
  22
  23        mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
  24        udelay(20);
  25}
  26
  27void mt76x2_reset_wlan(struct mt76x02_dev *dev, bool enable)
  28{
  29        u32 val;
  30
  31        if (!enable)
  32                goto out;
  33
  34        val = mt76_rr(dev, MT_WLAN_FUN_CTRL);
  35
  36        val &= ~MT_WLAN_FUN_CTRL_FRC_WL_ANT_SEL;
  37
  38        if (val & MT_WLAN_FUN_CTRL_WLAN_EN) {
  39                val |= MT_WLAN_FUN_CTRL_WLAN_RESET_RF;
  40                mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
  41                udelay(20);
  42
  43                val &= ~MT_WLAN_FUN_CTRL_WLAN_RESET_RF;
  44        }
  45
  46        mt76_wr(dev, MT_WLAN_FUN_CTRL, val);
  47        udelay(20);
  48
  49out:
  50        mt76x2_set_wlan_state(dev, enable);
  51}
  52EXPORT_SYMBOL_GPL(mt76x2_reset_wlan);
  53
  54void mt76_write_mac_initvals(struct mt76x02_dev *dev)
  55{
  56#define DEFAULT_PROT_CFG_CCK                            \
  57        (FIELD_PREP(MT_PROT_CFG_RATE, 0x3) |            \
  58         FIELD_PREP(MT_PROT_CFG_NAV, 1) |               \
  59         FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f) |     \
  60         MT_PROT_CFG_RTS_THRESH)
  61
  62#define DEFAULT_PROT_CFG_OFDM                           \
  63        (FIELD_PREP(MT_PROT_CFG_RATE, 0x2004) |         \
  64         FIELD_PREP(MT_PROT_CFG_NAV, 1) |                       \
  65         FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f) |     \
  66         MT_PROT_CFG_RTS_THRESH)
  67
  68#define DEFAULT_PROT_CFG_20                             \
  69        (FIELD_PREP(MT_PROT_CFG_RATE, 0x2004) |         \
  70         FIELD_PREP(MT_PROT_CFG_CTRL, 1) |              \
  71         FIELD_PREP(MT_PROT_CFG_NAV, 1) |                       \
  72         FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x17))
  73
  74#define DEFAULT_PROT_CFG_40                             \
  75        (FIELD_PREP(MT_PROT_CFG_RATE, 0x2084) |         \
  76         FIELD_PREP(MT_PROT_CFG_CTRL, 1) |              \
  77         FIELD_PREP(MT_PROT_CFG_NAV, 1) |                       \
  78         FIELD_PREP(MT_PROT_CFG_TXOP_ALLOW, 0x3f))
  79
  80        static const struct mt76_reg_pair vals[] = {
  81                /* Copied from MediaTek reference source */
  82                { MT_PBF_SYS_CTRL,              0x00080c00 },
  83                { MT_PBF_CFG,                   0x1efebcff },
  84                { MT_FCE_PSE_CTRL,              0x00000001 },
  85                { MT_MAC_SYS_CTRL,              0x00000000 },
  86                { MT_MAX_LEN_CFG,               0x003e3f00 },
  87                { MT_AMPDU_MAX_LEN_20M1S,       0xaaa99887 },
  88                { MT_AMPDU_MAX_LEN_20M2S,       0x000000aa },
  89                { MT_XIFS_TIME_CFG,             0x33a40d0a },
  90                { MT_BKOFF_SLOT_CFG,            0x00000209 },
  91                { MT_TBTT_SYNC_CFG,             0x00422010 },
  92                { MT_PWR_PIN_CFG,               0x00000000 },
  93                { 0x1238,                       0x001700c8 },
  94                { MT_TX_SW_CFG0,                0x00101001 },
  95                { MT_TX_SW_CFG1,                0x00010000 },
  96                { MT_TX_SW_CFG2,                0x00000000 },
  97                { MT_TXOP_CTRL_CFG,             0x0400583f },
  98                { MT_TX_RTS_CFG,                0x00ffff20 },
  99                { MT_TX_TIMEOUT_CFG,            0x000a2290 },
 100                { MT_TX_RETRY_CFG,              0x47f01f0f },
 101                { MT_EXP_ACK_TIME,              0x002c00dc },
 102                { MT_TX_PROT_CFG6,              0xe3f42004 },
 103                { MT_TX_PROT_CFG7,              0xe3f42084 },
 104                { MT_TX_PROT_CFG8,              0xe3f42104 },
 105                { MT_PIFS_TX_CFG,               0x00060fff },
 106                { MT_RX_FILTR_CFG,              0x00015f97 },
 107                { MT_LEGACY_BASIC_RATE,         0x0000017f },
 108                { MT_HT_BASIC_RATE,             0x00004003 },
 109                { MT_PN_PAD_MODE,               0x00000003 },
 110                { MT_TXOP_HLDR_ET,              0x00000002 },
 111                { 0xa44,                        0x00000000 },
 112                { MT_HEADER_TRANS_CTRL_REG,     0x00000000 },
 113                { MT_TSO_CTRL,                  0x00000000 },
 114                { MT_AUX_CLK_CFG,               0x00000000 },
 115                { MT_DACCLK_EN_DLY_CFG,         0x00000000 },
 116                { MT_TX_ALC_CFG_4,              0x00000000 },
 117                { MT_TX_ALC_VGA3,               0x00000000 },
 118                { MT_TX_PWR_CFG_0,              0x3a3a3a3a },
 119                { MT_TX_PWR_CFG_1,              0x3a3a3a3a },
 120                { MT_TX_PWR_CFG_2,              0x3a3a3a3a },
 121                { MT_TX_PWR_CFG_3,              0x3a3a3a3a },
 122                { MT_TX_PWR_CFG_4,              0x3a3a3a3a },
 123                { MT_TX_PWR_CFG_7,              0x3a3a3a3a },
 124                { MT_TX_PWR_CFG_8,              0x0000003a },
 125                { MT_TX_PWR_CFG_9,              0x0000003a },
 126                { MT_EFUSE_CTRL,                0x0000d000 },
 127                { MT_PAUSE_ENABLE_CONTROL1,     0x0000000a },
 128                { MT_FCE_WLAN_FLOW_CONTROL1,    0x60401c18 },
 129                { MT_WPDMA_DELAY_INT_CFG,       0x94ff0000 },
 130                { MT_TX_SW_CFG3,                0x00000004 },
 131                { MT_HT_FBK_TO_LEGACY,          0x00001818 },
 132                { MT_VHT_HT_FBK_CFG1,           0xedcba980 },
 133                { MT_PROT_AUTO_TX_CFG,          0x00830083 },
 134                { MT_HT_CTRL_CFG,               0x000001ff },
 135                { MT_TX_LINK_CFG,               0x00001020 },
 136        };
 137        struct mt76_reg_pair prot_vals[] = {
 138                { MT_CCK_PROT_CFG,              DEFAULT_PROT_CFG_CCK },
 139                { MT_OFDM_PROT_CFG,             DEFAULT_PROT_CFG_OFDM },
 140                { MT_MM20_PROT_CFG,             DEFAULT_PROT_CFG_20 },
 141                { MT_MM40_PROT_CFG,             DEFAULT_PROT_CFG_40 },
 142                { MT_GF20_PROT_CFG,             DEFAULT_PROT_CFG_20 },
 143                { MT_GF40_PROT_CFG,             DEFAULT_PROT_CFG_40 },
 144        };
 145
 146        mt76_wr_rp(dev, 0, vals, ARRAY_SIZE(vals));
 147        mt76_wr_rp(dev, 0, prot_vals, ARRAY_SIZE(prot_vals));
 148}
 149EXPORT_SYMBOL_GPL(mt76_write_mac_initvals);
 150
 151void mt76x2_init_txpower(struct mt76x02_dev *dev,
 152                         struct ieee80211_supported_band *sband)
 153{
 154        struct ieee80211_channel *chan;
 155        struct mt76x2_tx_power_info txp;
 156        struct mt76_rate_power t = {};
 157        int i;
 158
 159        for (i = 0; i < sband->n_channels; i++) {
 160                chan = &sband->channels[i];
 161
 162                mt76x2_get_power_info(dev, &txp, chan);
 163                mt76x2_get_rate_power(dev, &t, chan);
 164
 165                chan->orig_mpwr = mt76x02_get_max_rate_power(&t) +
 166                                  txp.target_power;
 167                chan->orig_mpwr = DIV_ROUND_UP(chan->orig_mpwr, 2);
 168
 169                /* convert to combined output power on 2x2 devices */
 170                chan->orig_mpwr += 3;
 171                chan->max_power = min_t(int, chan->max_reg_power,
 172                                        chan->orig_mpwr);
 173        }
 174}
 175EXPORT_SYMBOL_GPL(mt76x2_init_txpower);
 176