diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtw88/main.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/main.c | 1211 |
1 files changed, 1211 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c new file mode 100644 index 000000000000..9893e5e297e3 --- /dev/null +++ b/drivers/net/wireless/realtek/rtw88/main.c @@ -0,0 +1,1211 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* Copyright(c) 2018-2019 Realtek Corporation + */ + +#include "main.h" +#include "regd.h" +#include "fw.h" +#include "ps.h" +#include "sec.h" +#include "mac.h" +#include "phy.h" +#include "reg.h" +#include "efuse.h" +#include "debug.h" + +static bool rtw_fw_support_lps; +unsigned int rtw_debug_mask; +EXPORT_SYMBOL(rtw_debug_mask); + +module_param_named(support_lps, rtw_fw_support_lps, bool, 0644); +module_param_named(debug_mask, rtw_debug_mask, uint, 0644); + +MODULE_PARM_DESC(support_lps, "Set Y to enable LPS support"); +MODULE_PARM_DESC(debug_mask, "Debugging mask"); + +static struct ieee80211_channel rtw_channeltable_2g[] = { + {.center_freq = 2412, .hw_value = 1,}, + {.center_freq = 2417, .hw_value = 2,}, + {.center_freq = 2422, .hw_value = 3,}, + {.center_freq = 2427, .hw_value = 4,}, + {.center_freq = 2432, .hw_value = 5,}, + {.center_freq = 2437, .hw_value = 6,}, + {.center_freq = 2442, .hw_value = 7,}, + {.center_freq = 2447, .hw_value = 8,}, + {.center_freq = 2452, .hw_value = 9,}, + {.center_freq = 2457, .hw_value = 10,}, + {.center_freq = 2462, .hw_value = 11,}, + {.center_freq = 2467, .hw_value = 12,}, + {.center_freq = 2472, .hw_value = 13,}, + {.center_freq = 2484, .hw_value = 14,}, +}; + +static struct ieee80211_channel rtw_channeltable_5g[] = { + {.center_freq = 5180, .hw_value = 36,}, + {.center_freq = 5200, .hw_value = 40,}, + {.center_freq = 5220, .hw_value = 44,}, + {.center_freq = 5240, .hw_value = 48,}, + {.center_freq = 5260, .hw_value = 52,}, + {.center_freq = 5280, .hw_value = 56,}, + {.center_freq = 5300, .hw_value = 60,}, + {.center_freq = 5320, .hw_value = 64,}, + {.center_freq = 5500, .hw_value = 100,}, + {.center_freq = 5520, .hw_value = 104,}, + {.center_freq = 5540, .hw_value = 108,}, + {.center_freq = 5560, .hw_value = 112,}, + {.center_freq = 5580, .hw_value = 116,}, + {.center_freq = 5600, .hw_value = 120,}, + {.center_freq = 5620, .hw_value = 124,}, + {.center_freq = 5640, .hw_value = 128,}, + {.center_freq = 5660, .hw_value = 132,}, + {.center_freq = 5680, .hw_value = 136,}, + {.center_freq = 5700, .hw_value = 140,}, + {.center_freq = 5745, .hw_value = 149,}, + {.center_freq = 5765, .hw_value = 153,}, + {.center_freq = 5785, .hw_value = 157,}, + {.center_freq = 5805, .hw_value = 161,}, + {.center_freq = 5825, .hw_value = 165, + .flags = IEEE80211_CHAN_NO_HT40MINUS}, +}; + +static struct ieee80211_rate rtw_ratetable[] = { + {.bitrate = 10, .hw_value = 0x00,}, + {.bitrate = 20, .hw_value = 0x01,}, + {.bitrate = 55, .hw_value = 0x02,}, + {.bitrate = 110, .hw_value = 0x03,}, + {.bitrate = 60, .hw_value = 0x04,}, + {.bitrate = 90, .hw_value = 0x05,}, + {.bitrate = 120, .hw_value = 0x06,}, + {.bitrate = 180, .hw_value = 0x07,}, + {.bitrate = 240, .hw_value = 0x08,}, + {.bitrate = 360, .hw_value = 0x09,}, + {.bitrate = 480, .hw_value = 0x0a,}, + {.bitrate = 540, .hw_value = 0x0b,}, +}; + +static struct ieee80211_supported_band rtw_band_2ghz = { + .band = NL80211_BAND_2GHZ, + + .channels = rtw_channeltable_2g, + .n_channels = ARRAY_SIZE(rtw_channeltable_2g), + + .bitrates = rtw_ratetable, + .n_bitrates = ARRAY_SIZE(rtw_ratetable), + + .ht_cap = {0}, + .vht_cap = {0}, +}; + +static struct ieee80211_supported_band rtw_band_5ghz = { + .band = NL80211_BAND_5GHZ, + + .channels = rtw_channeltable_5g, + .n_channels = ARRAY_SIZE(rtw_channeltable_5g), + + /* 5G has no CCK rates */ + .bitrates = rtw_ratetable + 4, + .n_bitrates = ARRAY_SIZE(rtw_ratetable) - 4, + + .ht_cap = {0}, + .vht_cap = {0}, +}; + +struct rtw_watch_dog_iter_data { + struct rtw_vif *rtwvif; + bool active; + u8 assoc_cnt; +}; + +static void rtw_vif_watch_dog_iter(void *data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct rtw_watch_dog_iter_data *iter_data = data; + struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; + + if (vif->type == NL80211_IFTYPE_STATION) { + if (vif->bss_conf.assoc) { + iter_data->assoc_cnt++; + iter_data->rtwvif = rtwvif; + } + if (rtwvif->stats.tx_cnt > RTW_LPS_THRESHOLD || + rtwvif->stats.rx_cnt > RTW_LPS_THRESHOLD) + iter_data->active = true; + } else { + /* only STATION mode can enter lps */ + iter_data->active = true; + } + + rtwvif->stats.tx_unicast = 0; + rtwvif->stats.rx_unicast = 0; + rtwvif->stats.tx_cnt = 0; + rtwvif->stats.rx_cnt = 0; +} + +/* process TX/RX statistics periodically for hardware, + * the information helps hardware to enhance performance + */ +static void rtw_watch_dog_work(struct work_struct *work) +{ + struct rtw_dev *rtwdev = container_of(work, struct rtw_dev, + watch_dog_work.work); + struct rtw_watch_dog_iter_data data = {}; + + if (!rtw_flag_check(rtwdev, RTW_FLAG_RUNNING)) + return; + + ieee80211_queue_delayed_work(rtwdev->hw, &rtwdev->watch_dog_work, + RTW_WATCH_DOG_DELAY_TIME); + + /* reset tx/rx statictics */ + rtwdev->stats.tx_unicast = 0; + rtwdev->stats.rx_unicast = 0; + rtwdev->stats.tx_cnt = 0; + rtwdev->stats.rx_cnt = 0; + + rtw_iterate_vifs(rtwdev, rtw_vif_watch_dog_iter, &data); + + /* fw supports only one station associated to enter lps, if there are + * more than two stations associated to the AP, then we can not enter + * lps, because fw does not handle the overlapped beacon interval + */ + if (rtw_fw_support_lps && + data.rtwvif && !data.active && data.assoc_cnt == 1) + rtw_enter_lps(rtwdev, data.rtwvif); + + if (rtw_flag_check(rtwdev, RTW_FLAG_SCANNING)) + return; + + rtw_phy_dynamic_mechanism(rtwdev); + + rtwdev->watch_dog_cnt++; +} + +static void rtw_c2h_work(struct work_struct *work) +{ + struct rtw_dev *rtwdev = container_of(work, struct rtw_dev, c2h_work); + struct sk_buff *skb, *tmp; + + skb_queue_walk_safe(&rtwdev->c2h_queue, skb, tmp) { + skb_unlink(skb, &rtwdev->c2h_queue); + rtw_fw_c2h_cmd_handle(rtwdev, skb); + dev_kfree_skb_any(skb); + } +} + +void rtw_get_channel_params(struct cfg80211_chan_def *chandef, + struct rtw_channel_params *chan_params) +{ + struct ieee80211_channel *channel = chandef->chan; + enum nl80211_chan_width width = chandef->width; + u32 primary_freq, center_freq; + u8 center_chan; + u8 bandwidth = RTW_CHANNEL_WIDTH_20; + u8 primary_chan_idx = 0; + + center_chan = channel->hw_value; + primary_freq = channel->center_freq; + center_freq = chandef->center_freq1; + + switch (width) { + case NL80211_CHAN_WIDTH_20_NOHT: + case NL80211_CHAN_WIDTH_20: + bandwidth = RTW_CHANNEL_WIDTH_20; + primary_chan_idx = 0; + break; + case NL80211_CHAN_WIDTH_40: + bandwidth = RTW_CHANNEL_WIDTH_40; + if (primary_freq > center_freq) { + primary_chan_idx = 1; + center_chan -= 2; + } else { + primary_chan_idx = 2; + center_chan += 2; + } + break; + case NL80211_CHAN_WIDTH_80: + bandwidth = RTW_CHANNEL_WIDTH_80; + if (primary_freq > center_freq) { + if (primary_freq - center_freq == 10) { + primary_chan_idx = 1; + center_chan -= 2; + } else { + primary_chan_idx = 3; + center_chan -= 6; + } + } else { + if (center_freq - primary_freq == 10) { + primary_chan_idx = 2; + center_chan += 2; + } else { + primary_chan_idx = 4; + center_chan += 6; + } + } + break; + default: + center_chan = 0; + break; + } + + chan_params->center_chan = center_chan; + chan_params->bandwidth = bandwidth; + chan_params->primary_chan_idx = primary_chan_idx; +} + +void rtw_set_channel(struct rtw_dev *rtwdev) +{ + struct ieee80211_hw *hw = rtwdev->hw; + struct rtw_hal *hal = &rtwdev->hal; + struct rtw_chip_info *chip = rtwdev->chip; + struct rtw_channel_params ch_param; + u8 center_chan, bandwidth, primary_chan_idx; + + rtw_get_channel_params(&hw->conf.chandef, &ch_param); + if (WARN(ch_param.center_chan == 0, "Invalid channel\n")) + return; + + center_chan = ch_param.center_chan; + bandwidth = ch_param.bandwidth; + primary_chan_idx = ch_param.primary_chan_idx; + + hal->current_band_width = bandwidth; + hal->current_channel = center_chan; + hal->current_band_type = center_chan > 14 ? RTW_BAND_5G : RTW_BAND_2G; + chip->ops->set_channel(rtwdev, center_chan, bandwidth, primary_chan_idx); + + rtw_phy_set_tx_power_level(rtwdev, center_chan); +} + +static void rtw_vif_write_addr(struct rtw_dev *rtwdev, u32 start, u8 *addr) +{ + int i; + + for (i = 0; i < ETH_ALEN; i++) + rtw_write8(rtwdev, start + i, addr[i]); +} + +void rtw_vif_port_config(struct rtw_dev *rtwdev, + struct rtw_vif *rtwvif, + u32 config) +{ + u32 addr, mask; + + if (config & PORT_SET_MAC_ADDR) { + addr = rtwvif->conf->mac_addr.addr; + rtw_vif_write_addr(rtwdev, addr, rtwvif->mac_addr); + } + if (config & PORT_SET_BSSID) { + addr = rtwvif->conf->bssid.addr; + rtw_vif_write_addr(rtwdev, addr, rtwvif->bssid); + } + if (config & PORT_SET_NET_TYPE) { + addr = rtwvif->conf->net_type.addr; + mask = rtwvif->conf->net_type.mask; + rtw_write32_mask(rtwdev, addr, mask, rtwvif->net_type); + } + if (config & PORT_SET_AID) { + addr = rtwvif->conf->aid.addr; + mask = rtwvif->conf->aid.mask; + rtw_write32_mask(rtwdev, addr, mask, rtwvif->aid); + } +} + +static u8 hw_bw_cap_to_bitamp(u8 bw_cap) +{ + u8 bw = 0; + + switch (bw_cap) { + case EFUSE_HW_CAP_IGNORE: + case EFUSE_HW_CAP_SUPP_BW80: + bw |= BIT(RTW_CHANNEL_WIDTH_80); + /* fall through */ + case EFUSE_HW_CAP_SUPP_BW40: + bw |= BIT(RTW_CHANNEL_WIDTH_40); + /* fall through */ + default: + bw |= BIT(RTW_CHANNEL_WIDTH_20); + break; + } + + return bw; +} + +static void rtw_hw_config_rf_ant_num(struct rtw_dev *rtwdev, u8 hw_ant_num) +{ + struct rtw_hal *hal = &rtwdev->hal; + + if (hw_ant_num == EFUSE_HW_CAP_IGNORE || + hw_ant_num >= hal->rf_path_num) + return; + + switch (hw_ant_num) { + case 1: + hal->rf_type = RF_1T1R; + hal->rf_path_num = 1; + hal->antenna_tx = BB_PATH_A; + hal->antenna_rx = BB_PATH_A; + break; + default: + WARN(1, "invalid hw configuration from efuse\n"); + break; + } +} + +static u64 get_vht_ra_mask(struct ieee80211_sta *sta) +{ + u64 ra_mask = 0; + u16 mcs_map = le16_to_cpu(sta->vht_cap.vht_mcs.rx_mcs_map); + u8 vht_mcs_cap; + int i, nss; + + /* 4SS, every two bits for MCS7/8/9 */ + for (i = 0, nss = 12; i < 4; i++, mcs_map >>= 2, nss += 10) { + vht_mcs_cap = mcs_map & 0x3; + switch (vht_mcs_cap) { + case 2: /* MCS9 */ + ra_mask |= 0x3ff << nss; + break; + case 1: /* MCS8 */ + ra_mask |= 0x1ff << nss; + break; + case 0: /* MCS7 */ + ra_mask |= 0x0ff << nss; + break; + default: + break; + } + } + + return ra_mask; +} + +static u8 get_rate_id(u8 wireless_set, enum rtw_bandwidth bw_mode, u8 tx_num) +{ + u8 rate_id = 0; + + switch (wireless_set) { + case WIRELESS_CCK: + rate_id = RTW_RATEID_B_20M; + break; + case WIRELESS_OFDM: + rate_id = RTW_RATEID_G; + break; + case WIRELESS_CCK | WIRELESS_OFDM: + rate_id = RTW_RATEID_BG; + break; + case WIRELESS_OFDM | WIRELESS_HT: + if (tx_num == 1) + rate_id = RTW_RATEID_GN_N1SS; + else if (tx_num == 2) + rate_id = RTW_RATEID_GN_N2SS; + else if (tx_num == 3) + rate_id = RTW_RATEID_ARFR5_N_3SS; + break; + case WIRELESS_CCK | WIRELESS_OFDM | WIRELESS_HT: + if (bw_mode == RTW_CHANNEL_WIDTH_40) { + if (tx_num == 1) + rate_id = RTW_RATEID_BGN_40M_1SS; + else if (tx_num == 2) + rate_id = RTW_RATEID_BGN_40M_2SS; + else if (tx_num == 3) + rate_id = RTW_RATEID_ARFR5_N_3SS; + else if (tx_num == 4) + rate_id = RTW_RATEID_ARFR7_N_4SS; + } else { + if (tx_num == 1) + rate_id = RTW_RATEID_BGN_20M_1SS; + else if (tx_num == 2) + rate_id = RTW_RATEID_BGN_20M_2SS; + else if (tx_num == 3) + rate_id = RTW_RATEID_ARFR5_N_3SS; + else if (tx_num == 4) + rate_id = RTW_RATEID_ARFR7_N_4SS; + } + break; + case WIRELESS_OFDM | WIRELESS_VHT: + if (tx_num == 1) + rate_id = RTW_RATEID_ARFR1_AC_1SS; + else if (tx_num == 2) + rate_id = RTW_RATEID_ARFR0_AC_2SS; + else if (tx_num == 3) + rate_id = RTW_RATEID_ARFR4_AC_3SS; + else if (tx_num == 4) + rate_id = RTW_RATEID_ARFR6_AC_4SS; + break; + case WIRELESS_CCK | WIRELESS_OFDM | WIRELESS_VHT: + if (bw_mode >= RTW_CHANNEL_WIDTH_80) { + if (tx_num == 1) + rate_id = RTW_RATEID_ARFR1_AC_1SS; + else if (tx_num == 2) + rate_id = RTW_RATEID_ARFR0_AC_2SS; + else if (tx_num == 3) + rate_id = RTW_RATEID_ARFR4_AC_3SS; + else if (tx_num == 4) + rate_id = RTW_RATEID_ARFR6_AC_4SS; + } else { + if (tx_num == 1) + rate_id = RTW_RATEID_ARFR2_AC_2G_1SS; + else if (tx_num == 2) + rate_id = RTW_RATEID_ARFR3_AC_2G_2SS; + else if (tx_num == 3) + rate_id = RTW_RATEID_ARFR4_AC_3SS; + else if (tx_num == 4) + rate_id = RTW_RATEID_ARFR6_AC_4SS; + } + break; + default: + break; + } + + return rate_id; +} + +#define RA_MASK_CCK_RATES 0x0000f +#define RA_MASK_OFDM_RATES 0x00ff0 +#define RA_MASK_HT_RATES_1SS (0xff000 << 0) +#define RA_MASK_HT_RATES_2SS (0xff000 << 8) +#define RA_MASK_HT_RATES_3SS (0xff000 << 16) +#define RA_MASK_HT_RATES (RA_MASK_HT_RATES_1SS | \ + RA_MASK_HT_RATES_2SS | \ + RA_MASK_HT_RATES_3SS) +#define RA_MASK_VHT_RATES_1SS (0x3ff000 << 0) +#define RA_MASK_VHT_RATES_2SS (0x3ff000 << 10) +#define RA_MASK_VHT_RATES_3SS (0x3ff000 << 20) +#define RA_MASK_VHT_RATES (RA_MASK_VHT_RATES_1SS | \ + RA_MASK_VHT_RATES_2SS | \ + RA_MASK_VHT_RATES_3SS) +#define RA_MASK_CCK_IN_HT 0x00005 +#define RA_MASK_CCK_IN_VHT 0x00005 +#define RA_MASK_OFDM_IN_VHT 0x00010 +#define RA_MASK_OFDM_IN_HT_2G 0x00010 +#define RA_MASK_OFDM_IN_HT_5G 0x00030 + +void rtw_update_sta_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si) +{ + struct ieee80211_sta *sta = si->sta; + struct rtw_efuse *efuse = &rtwdev->efuse; + struct rtw_hal *hal = &rtwdev->hal; + u8 rssi_level; + u8 wireless_set; + u8 bw_mode; + u8 rate_id; + u8 rf_type = RF_1T1R; + u8 stbc_en = 0; + u8 ldpc_en = 0; + u8 tx_num = 1; + u64 ra_mask = 0; + bool is_vht_enable = false; + bool is_support_sgi = false; + + if (sta->vht_cap.vht_supported) { + is_vht_enable = true; + ra_mask |= get_vht_ra_mask(sta); + if (sta->vht_cap.cap & IEEE80211_VHT_CAP_RXSTBC_MASK) + stbc_en = VHT_STBC_EN; + if (sta->vht_cap.cap & IEEE80211_VHT_CAP_RXLDPC) + ldpc_en = VHT_LDPC_EN; + if (sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80) + is_support_sgi = true; + } else if (sta->ht_cap.ht_supported) { + ra_mask |= (sta->ht_cap.mcs.rx_mask[NL80211_BAND_5GHZ] << 20) | + (sta->ht_cap.mcs.rx_mask[NL80211_BAND_2GHZ] << 12); + if (sta->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC) + stbc_en = HT_STBC_EN; + if (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING) + ldpc_en = HT_LDPC_EN; + if (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20 || + sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40) + is_support_sgi = true; + } + + if (hal->current_band_type == RTW_BAND_5G) { + ra_mask |= (u64)sta->supp_rates[NL80211_BAND_5GHZ] << 4; + if (sta->vht_cap.vht_supported) { + ra_mask &= RA_MASK_VHT_RATES | RA_MASK_OFDM_IN_VHT; + wireless_set = WIRELESS_OFDM | WIRELESS_VHT; + } else if (sta->ht_cap.ht_supported) { + ra_mask &= RA_MASK_HT_RATES | RA_MASK_OFDM_IN_HT_5G; + wireless_set = WIRELESS_OFDM | WIRELESS_HT; + } else { + wireless_set = WIRELESS_OFDM; + } + } else if (hal->current_band_type == RTW_BAND_2G) { + ra_mask |= sta->supp_rates[NL80211_BAND_2GHZ]; + if (sta->vht_cap.vht_supported) { + ra_mask &= RA_MASK_VHT_RATES | RA_MASK_CCK_IN_VHT | + RA_MASK_OFDM_IN_VHT; + wireless_set = WIRELESS_CCK | WIRELESS_OFDM | + WIRELESS_HT | WIRELESS_VHT; + } else if (sta->ht_cap.ht_supported) { + ra_mask &= RA_MASK_HT_RATES | RA_MASK_CCK_IN_HT | + RA_MASK_OFDM_IN_HT_2G; + wireless_set = WIRELESS_CCK | WIRELESS_OFDM | + WIRELESS_HT; + } else if (sta->supp_rates[0] <= 0xf) { + wireless_set = WIRELESS_CCK; + } else { + wireless_set = WIRELESS_CCK | WIRELESS_OFDM; + } + } else { + rtw_err(rtwdev, "Unknown band type\n"); + wireless_set = 0; + } + + if (efuse->hw_cap.nss == 1) { + ra_mask &= RA_MASK_VHT_RATES_1SS; + ra_mask &= RA_MASK_HT_RATES_1SS; + } + + switch (sta->bandwidth) { + case IEEE80211_STA_RX_BW_80: + bw_mode = RTW_CHANNEL_WIDTH_80; + break; + case IEEE80211_STA_RX_BW_40: + bw_mode = RTW_CHANNEL_WIDTH_40; + break; + default: + bw_mode = RTW_CHANNEL_WIDTH_20; + break; + } + + if (sta->vht_cap.vht_supported && ra_mask & 0xffc00000) { + tx_num = 2; + rf_type = RF_2T2R; + } else if (sta->ht_cap.ht_supported && ra_mask & 0xfff00000) { + tx_num = 2; + rf_type = RF_2T2R; + } + + rate_id = get_rate_id(wireless_set, bw_mode, tx_num); + + if (wireless_set != WIRELESS_CCK) { + rssi_level = si->rssi_level; + if (rssi_level == 0) + ra_mask &= 0xffffffffffffffffULL; + else if (rssi_level == 1) + ra_mask &= 0xfffffffffffffff0ULL; + else if (rssi_level == 2) + ra_mask &= 0xffffffffffffefe0ULL; + else if (rssi_level == 3) + ra_mask &= 0xffffffffffffcfc0ULL; + else if (rssi_level == 4) + ra_mask &= 0xffffffffffff8f80ULL; + else if (rssi_level >= 5) + ra_mask &= 0xffffffffffff0f00ULL; + } + + si->bw_mode = bw_mode; + si->stbc_en = stbc_en; + si->ldpc_en = ldpc_en; + si->rf_type = rf_type; + si->wireless_set = wireless_set; + si->sgi_enable = is_support_sgi; + si->vht_enable = is_vht_enable; + si->ra_mask = ra_mask; + si->rate_id = rate_id; + + rtw_fw_send_ra_info(rtwdev, si); +} + +static int rtw_power_on(struct rtw_dev *rtwdev) +{ + struct rtw_chip_info *chip = rtwdev->chip; + struct rtw_fw_state *fw = &rtwdev->fw; + int ret; + + ret = rtw_hci_setup(rtwdev); + if (ret) { + rtw_err(rtwdev, "failed to setup hci\n"); + goto err; + } + + /* power on MAC before firmware downloaded */ + ret = rtw_mac_power_on(rtwdev); + if (ret) { + rtw_err(rtwdev, "failed to power on mac\n"); + goto err; + } + + wait_for_completion(&fw->completion); + if (!fw->firmware) { + ret = -EINVAL; + rtw_err(rtwdev, "failed to load firmware\n"); + goto err; + } + + ret = rtw_download_firmware(rtwdev, fw); + if (ret) { + rtw_err(rtwdev, "failed to download firmware\n"); + goto err_off; + } + + /* config mac after firmware downloaded */ + ret = rtw_mac_init(rtwdev); + if (ret) { + rtw_err(rtwdev, "failed to configure mac\n"); + goto err_off; + } + + chip->ops->phy_set_param(rtwdev); + + ret = rtw_hci_start(rtwdev); + if (ret) { + rtw_err(rtwdev, "failed to start hci\n"); + goto err_off; + } + + return 0; + +err_off: + rtw_mac_power_off(rtwdev); + +err: + return ret; +} + +int rtw_core_start(struct rtw_dev *rtwdev) +{ + int ret; + + ret = rtw_power_on(rtwdev); + if (ret) + return ret; + + rtw_sec_enable_sec_engine(rtwdev); + + /* rcr reset after powered on */ + rtw_write32(rtwdev, REG_RCR, rtwdev->hal.rcr); + + ieee80211_queue_delayed_work(rtwdev->hw, &rtwdev->watch_dog_work, + RTW_WATCH_DOG_DELAY_TIME); + + rtw_flag_set(rtwdev, RTW_FLAG_RUNNING); + + return 0; +} + +static void rtw_power_off(struct rtw_dev *rtwdev) +{ + rtwdev->hci.ops->stop(rtwdev); + rtw_mac_power_off(rtwdev); +} + +void rtw_core_stop(struct rtw_dev *rtwdev) +{ + rtw_flag_clear(rtwdev, RTW_FLAG_RUNNING); + rtw_flag_clear(rtwdev, RTW_FLAG_FW_RUNNING); + + cancel_delayed_work_sync(&rtwdev->watch_dog_work); + + rtw_power_off(rtwdev); +} + +static void rtw_init_ht_cap(struct rtw_dev *rtwdev, + struct ieee80211_sta_ht_cap *ht_cap) +{ + struct rtw_efuse *efuse = &rtwdev->efuse; + + ht_cap->ht_supported = true; + ht_cap->cap = 0; + ht_cap->cap |= IEEE80211_HT_CAP_SGI_20 | + IEEE80211_HT_CAP_MAX_AMSDU | + IEEE80211_HT_CAP_LDPC_CODING | + (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT); + if (efuse->hw_cap.bw & BIT(RTW_CHANNEL_WIDTH_40)) + ht_cap->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40 | + IEEE80211_HT_CAP_DSSSCCK40 | + IEEE80211_HT_CAP_SGI_40; + ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; + ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_16; + ht_cap->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; + if (efuse->hw_cap.nss > 1) { + ht_cap->mcs.rx_mask[0] = 0xFF; + ht_cap->mcs.rx_mask[1] = 0xFF; + ht_cap->mcs.rx_mask[4] = 0x01; + ht_cap->mcs.rx_highest = cpu_to_le16(300); + } else { + ht_cap->mcs.rx_mask[0] = 0xFF; + ht_cap->mcs.rx_mask[1] = 0x00; + ht_cap->mcs.rx_mask[4] = 0x01; + ht_cap->mcs.rx_highest = cpu_to_le16(150); + } +} + +static void rtw_init_vht_cap(struct rtw_dev *rtwdev, + struct ieee80211_sta_vht_cap *vht_cap) +{ + struct rtw_efuse *efuse = &rtwdev->efuse; + u16 mcs_map; + __le16 highest; + + if (efuse->hw_cap.ptcl != EFUSE_HW_CAP_IGNORE && + efuse->hw_cap.ptcl != EFUSE_HW_CAP_PTCL_VHT) + return; + + vht_cap->vht_supported = true; + vht_cap->cap = IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | + IEEE80211_VHT_CAP_RXLDPC | + IEEE80211_VHT_CAP_SHORT_GI_80 | + IEEE80211_VHT_CAP_TXSTBC | + IEEE80211_VHT_CAP_RXSTBC_1 | + IEEE80211_VHT_CAP_HTC_VHT | + IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | + 0; + mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 | + IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 | + IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 | + IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 | + IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 | + IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 | + IEEE80211_VHT_MCS_NOT_SUPPORTED << 14; + if (efuse->hw_cap.nss > 1) { + highest = cpu_to_le16(780); + mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << 2; + } else { + highest = cpu_to_le16(390); + mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << 2; + } + + vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map); + vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map); + vht_cap->vht_mcs.rx_highest = highest; + vht_cap->vht_mcs.tx_highest = highest; +} + +static void rtw_set_supported_band(struct ieee80211_hw *hw, + struct rtw_chip_info *chip) +{ + struct rtw_dev *rtwdev = hw->priv; + struct ieee80211_supported_band *sband; + + if (chip->band & RTW_BAND_2G) { + sband = kmemdup(&rtw_band_2ghz, sizeof(*sband), GFP_KERNEL); + if (!sband) + goto err_out; + if (chip->ht_supported) + rtw_init_ht_cap(rtwdev, &sband->ht_cap); + hw->wiphy->bands[NL80211_BAND_2GHZ] = sband; + } + + if (chip->band & RTW_BAND_5G) { + sband = kmemdup(&rtw_band_5ghz, sizeof(*sband), GFP_KERNEL); + if (!sband) + goto err_out; + if (chip->ht_supported) + rtw_init_ht_cap(rtwdev, &sband->ht_cap); + if (chip->vht_supported) + rtw_init_vht_cap(rtwdev, &sband->vht_cap); + hw->wiphy->bands[NL80211_BAND_5GHZ] = sband; + } + + return; + +err_out: + rtw_err(rtwdev, "failed to set supported band\n"); + kfree(sband); +} + +static void rtw_unset_supported_band(struct ieee80211_hw *hw, + struct rtw_chip_info *chip) +{ + kfree(hw->wiphy->bands[NL80211_BAND_2GHZ]); + kfree(hw->wiphy->bands[NL80211_BAND_5GHZ]); +} + +static void rtw_load_firmware_cb(const struct firmware *firmware, void *context) +{ + struct rtw_dev *rtwdev = context; + struct rtw_fw_state *fw = &rtwdev->fw; + + if (!firmware) + rtw_err(rtwdev, "failed to request firmware\n"); + + fw->firmware = firmware; + complete_all(&fw->completion); +} + +static int rtw_load_firmware(struct rtw_dev *rtwdev, const char *fw_name) +{ + struct rtw_fw_state *fw = &rtwdev->fw; + int ret; + + init_completion(&fw->completion); + + ret = request_firmware_nowait(THIS_MODULE, true, fw_name, rtwdev->dev, + GFP_KERNEL, rtwdev, rtw_load_firmware_cb); + if (ret) { + rtw_err(rtwdev, "async firmware request failed\n"); + return ret; + } + + return 0; +} + +static int rtw_chip_parameter_setup(struct rtw_dev *rtwdev) +{ + struct rtw_chip_info *chip = rtwdev->chip; + struct rtw_hal *hal = &rtwdev->hal; + struct rtw_efuse *efuse = &rtwdev->efuse; + u32 wl_bt_pwr_ctrl; + int ret = 0; + + switch (rtw_hci_type(rtwdev)) { + case RTW_HCI_TYPE_PCIE: + rtwdev->hci.rpwm_addr = 0x03d9; + break; + default: + rtw_err(rtwdev, "unsupported hci type\n"); + return -EINVAL; + } + + wl_bt_pwr_ctrl = rtw_read32(rtwdev, REG_WL_BT_PWR_CTRL); + if (wl_bt_pwr_ctrl & BIT_BT_FUNC_EN) + rtwdev->efuse.btcoex = true; + hal->chip_version = rtw_read32(rtwdev, REG_SYS_CFG1); + hal->fab_version = BIT_GET_VENDOR_ID(hal->chip_version) >> 2; + hal->cut_version = BIT_GET_CHIP_VER(hal->chip_version); + hal->mp_chip = (hal->chip_version & BIT_RTL_ID) ? 0 : 1; + if (hal->chip_version & BIT_RF_TYPE_ID) { + hal->rf_type = RF_2T2R; + hal->rf_path_num = 2; + hal->antenna_tx = BB_PATH_AB; + hal->antenna_rx = BB_PATH_AB; + } else { + hal->rf_type = RF_1T1R; + hal->rf_path_num = 1; + hal->antenna_tx = BB_PATH_A; + hal->antenna_rx = BB_PATH_A; + } + + if (hal->fab_version == 2) + hal->fab_version = 1; + else if (hal->fab_version == 1) + hal->fab_version = 2; + + efuse->physical_size = chip->phy_efuse_size; + efuse->logical_size = chip->log_efuse_size; + efuse->protect_size = chip->ptct_efuse_size; + + /* default use ack */ + rtwdev->hal.rcr |= BIT_VHT_DACK; + + return ret; +} + +static int rtw_chip_efuse_enable(struct rtw_dev *rtwdev) +{ + struct rtw_fw_state *fw = &rtwdev->fw; + int ret; + + ret = rtw_hci_setup(rtwdev); + if (ret) { + rtw_err(rtwdev, "failed to setup hci\n"); + goto err; + } + + ret = rtw_mac_power_on(rtwdev); + if (ret) { + rtw_err(rtwdev, "failed to power on mac\n"); + goto err; + } + + rtw_write8(rtwdev, REG_C2HEVT, C2H_HW_FEATURE_DUMP); + + wait_for_completion(&fw->completion); + if (!fw->firmware) { + ret = -EINVAL; + rtw_err(rtwdev, "failed to load firmware\n"); + goto err; + } + + ret = rtw_download_firmware(rtwdev, fw); + if (ret) { + rtw_err(rtwdev, "failed to download firmware\n"); + goto err_off; + } + + return 0; + +err_off: + rtw_mac_power_off(rtwdev); + +err: + return ret; +} + +static int rtw_dump_hw_feature(struct rtw_dev *rtwdev) +{ + struct rtw_efuse *efuse = &rtwdev->efuse; + u8 hw_feature[HW_FEATURE_LEN]; + u8 id; + u8 bw; + int i; + + id = rtw_read8(rtwdev, REG_C2HEVT); + if (id != C2H_HW_FEATURE_REPORT) { + rtw_err(rtwdev, "failed to read hw feature report\n"); + return -EBUSY; + } + + for (i = 0; i < HW_FEATURE_LEN; i++) + hw_feature[i] = rtw_read8(rtwdev, REG_C2HEVT + 2 + i); + + rtw_write8(rtwdev, REG_C2HEVT, 0); + + bw = GET_EFUSE_HW_CAP_BW(hw_feature); + efuse->hw_cap.bw = hw_bw_cap_to_bitamp(bw); + efuse->hw_cap.hci = GET_EFUSE_HW_CAP_HCI(hw_feature); + efuse->hw_cap.nss = GET_EFUSE_HW_CAP_NSS(hw_feature); + efuse->hw_cap.ptcl = GET_EFUSE_HW_CAP_PTCL(hw_feature); + efuse->hw_cap.ant_num = GET_EFUSE_HW_CAP_ANT_NUM(hw_feature); + + rtw_hw_config_rf_ant_num(rtwdev, efuse->hw_cap.ant_num); + + if (efuse->hw_cap.nss == EFUSE_HW_CAP_IGNORE) + efuse->hw_cap.nss = rtwdev->hal.rf_path_num; + + rtw_dbg(rtwdev, RTW_DBG_EFUSE, + "hw cap: hci=0x%02x, bw=0x%02x, ptcl=0x%02x, ant_num=%d, nss=%d\n", + efuse->hw_cap.hci, efuse->hw_cap.bw, efuse->hw_cap.ptcl, + efuse->hw_cap.ant_num, efuse->hw_cap.nss); + + return 0; +} + +static void rtw_chip_efuse_disable(struct rtw_dev *rtwdev) +{ + rtw_hci_stop(rtwdev); + rtw_mac_power_off(rtwdev); +} + +static int rtw_chip_efuse_info_setup(struct rtw_dev *rtwdev) +{ + struct rtw_efuse *efuse = &rtwdev->efuse; + int ret; + + mutex_lock(&rtwdev->mutex); + + /* power on mac to read efuse */ + ret = rtw_chip_efuse_enable(rtwdev); + if (ret) + goto out; + + ret = rtw_parse_efuse_map(rtwdev); + if (ret) + goto out; + + ret = rtw_dump_hw_feature(rtwdev); + if (ret) + goto out; + + ret = rtw_check_supported_rfe(rtwdev); + if (ret) + goto out; + + if (efuse->crystal_cap == 0xff) + efuse->crystal_cap = 0; + if (efuse->pa_type_2g == 0xff) + efuse->pa_type_2g = 0; + if (efuse->pa_type_5g == 0xff) + efuse->pa_type_5g = 0; + if (efuse->lna_type_2g == 0xff) + efuse->lna_type_2g = 0; + if (efuse->lna_type_5g == 0xff) + efuse->lna_type_5g = 0; + if (efuse->channel_plan == 0xff) + efuse->channel_plan = 0x7f; + if (efuse->bt_setting & BIT(0)) + efuse->share_ant = true; + if (efuse->regd == 0xff) + efuse->regd = 0; + + efuse->ext_pa_2g = efuse->pa_type_2g & BIT(4) ? 1 : 0; + efuse->ext_lna_2g = efuse->lna_type_2g & BIT(3) ? 1 : 0; + efuse->ext_pa_5g = efuse->pa_type_5g & BIT(0) ? 1 : 0; + efuse->ext_lna_2g = efuse->lna_type_5g & BIT(3) ? 1 : 0; + + rtw_chip_efuse_disable(rtwdev); + +out: + mutex_unlock(&rtwdev->mutex); + return ret; +} + +static int rtw_chip_board_info_setup(struct rtw_dev *rtwdev) +{ + struct rtw_hal *hal = &rtwdev->hal; + const struct rtw_rfe_def *rfe_def = rtw_get_rfe_def(rtwdev); + + if (!rfe_def) + return -ENODEV; + + rtw_phy_setup_phy_cond(rtwdev, 0); + + rtw_hw_init_tx_power(hal); + rtw_load_table(rtwdev, rfe_def->phy_pg_tbl); + rtw_load_table(rtwdev, rfe_def->txpwr_lmt_tbl); + rtw_phy_tx_power_by_rate_config(hal); + rtw_phy_tx_power_limit_config(hal); + + return 0; +} + +int rtw_chip_info_setup(struct rtw_dev *rtwdev) +{ + int ret; + + ret = rtw_chip_parameter_setup(rtwdev); + if (ret) { + rtw_err(rtwdev, "failed to setup chip parameters\n"); + goto err_out; + } + + ret = rtw_chip_efuse_info_setup(rtwdev); + if (ret) { + rtw_err(rtwdev, "failed to setup chip efuse info\n"); + goto err_out; + } + + ret = rtw_chip_board_info_setup(rtwdev); + if (ret) { + rtw_err(rtwdev, "failed to setup chip board info\n"); + goto err_out; + } + + return 0; + +err_out: + return ret; +} +EXPORT_SYMBOL(rtw_chip_info_setup); + +int rtw_core_init(struct rtw_dev *rtwdev) +{ + int ret; + + INIT_LIST_HEAD(&rtwdev->rsvd_page_list); + + timer_setup(&rtwdev->tx_report.purge_timer, + rtw_tx_report_purge_timer, 0); + + INIT_DELAYED_WORK(&rtwdev->watch_dog_work, rtw_watch_dog_work); + INIT_DELAYED_WORK(&rtwdev->lps_work, rtw_lps_work); + INIT_WORK(&rtwdev->c2h_work, rtw_c2h_work); + skb_queue_head_init(&rtwdev->c2h_queue); + skb_queue_head_init(&rtwdev->tx_report.queue); + + spin_lock_init(&rtwdev->dm_lock); + spin_lock_init(&rtwdev->rf_lock); + spin_lock_init(&rtwdev->h2c.lock); + spin_lock_init(&rtwdev->tx_report.q_lock); + + mutex_init(&rtwdev->mutex); + mutex_init(&rtwdev->hal.tx_power_mutex); + + rtwdev->sec.total_cam_num = 32; + rtwdev->hal.current_channel = 1; + set_bit(RTW_BC_MC_MACID, rtwdev->mac_id_map); + + mutex_lock(&rtwdev->mutex); + rtw_add_rsvd_page(rtwdev, RSVD_BEACON, false); + mutex_unlock(&rtwdev->mutex); + + /* default rx filter setting */ + rtwdev->hal.rcr = BIT_APP_FCS | BIT_APP_MIC | BIT_APP_ICV | + BIT_HTC_LOC_CTRL | BIT_APP_PHYSTS | + BIT_AB | BIT_AM | BIT_APM; + + ret = rtw_load_firmware(rtwdev, rtwdev->chip->fw_name); + if (ret) { + rtw_warn(rtwdev, "no firmware loaded\n"); + return ret; + } + + return 0; +} +EXPORT_SYMBOL(rtw_core_init); + +void rtw_core_deinit(struct rtw_dev *rtwdev) +{ + struct rtw_fw_state *fw = &rtwdev->fw; + struct rtw_rsvd_page *rsvd_pkt, *tmp; + unsigned long flags; + + if (fw->firmware) + release_firmware(fw->firmware); + + spin_lock_irqsave(&rtwdev->tx_report.q_lock, flags); + skb_queue_purge(&rtwdev->tx_report.queue); + spin_unlock_irqrestore(&rtwdev->tx_report.q_lock, flags); + + list_for_each_entry_safe(rsvd_pkt, tmp, &rtwdev->rsvd_page_list, list) { + list_del(&rsvd_pkt->list); + kfree(rsvd_pkt); + } + + mutex_destroy(&rtwdev->mutex); + mutex_destroy(&rtwdev->hal.tx_power_mutex); +} +EXPORT_SYMBOL(rtw_core_deinit); + +int rtw_register_hw(struct rtw_dev *rtwdev, struct ieee80211_hw *hw) +{ + int max_tx_headroom = 0; + int ret; + + /* TODO: USB & SDIO may need extra room? */ + max_tx_headroom = rtwdev->chip->tx_pkt_desc_sz; + + hw->extra_tx_headroom = max_tx_headroom; + hw->queues = IEEE80211_NUM_ACS; + hw->sta_data_size = sizeof(struct rtw_sta_info); + hw->vif_data_size = sizeof(struct rtw_vif); + + ieee80211_hw_set(hw, SIGNAL_DBM); + ieee80211_hw_set(hw, RX_INCLUDES_FCS); + ieee80211_hw_set(hw, AMPDU_AGGREGATION); + ieee80211_hw_set(hw, MFP_CAPABLE); + ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); + ieee80211_hw_set(hw, SUPPORTS_PS); + ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); + + hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_ADHOC) | + BIT(NL80211_IFTYPE_MESH_POINT); + + hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | + WIPHY_FLAG_TDLS_EXTERNAL_SETUP; + + rtw_set_supported_band(hw, rtwdev->chip); + SET_IEEE80211_PERM_ADDR(hw, rtwdev->efuse.addr); + + rtw_regd_init(rtwdev, rtw_regd_notifier); + + ret = ieee80211_register_hw(hw); + if (ret) { + rtw_err(rtwdev, "failed to register hw\n"); + return ret; + } + + if (regulatory_hint(hw->wiphy, rtwdev->regd.alpha2)) + rtw_err(rtwdev, "regulatory_hint fail\n"); + + rtw_debugfs_init(rtwdev); + + return 0; +} +EXPORT_SYMBOL(rtw_register_hw); + +void rtw_unregister_hw(struct rtw_dev *rtwdev, struct ieee80211_hw *hw) +{ + struct rtw_chip_info *chip = rtwdev->chip; + + ieee80211_unregister_hw(hw); + rtw_unset_supported_band(hw, chip); +} +EXPORT_SYMBOL(rtw_unregister_hw); + +MODULE_AUTHOR("Realtek Corporation"); +MODULE_DESCRIPTION("Realtek 802.11ac wireless core module"); +MODULE_LICENSE("Dual BSD/GPL"); |