diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtw89/wow.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw89/wow.c | 859 |
1 files changed, 859 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw89/wow.c b/drivers/net/wireless/realtek/rtw89/wow.c new file mode 100644 index 000000000000..b2b826b2e09a --- /dev/null +++ b/drivers/net/wireless/realtek/rtw89/wow.c @@ -0,0 +1,859 @@ +// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause +/* Copyright(c) 2019-2022 Realtek Corporation + */ +#include "cam.h" +#include "core.h" +#include "debug.h" +#include "fw.h" +#include "mac.h" +#include "phy.h" +#include "ps.h" +#include "reg.h" +#include "util.h" +#include "wow.h" + +static void rtw89_wow_leave_deep_ps(struct rtw89_dev *rtwdev) +{ + __rtw89_leave_ps_mode(rtwdev); +} + +static void rtw89_wow_enter_deep_ps(struct rtw89_dev *rtwdev) +{ + struct ieee80211_vif *wow_vif = rtwdev->wow.wow_vif; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; + + __rtw89_enter_ps_mode(rtwdev, rtwvif); +} + +static void rtw89_wow_enter_lps(struct rtw89_dev *rtwdev) +{ + struct ieee80211_vif *wow_vif = rtwdev->wow.wow_vif; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; + + rtw89_enter_lps(rtwdev, rtwvif); +} + +static void rtw89_wow_leave_lps(struct rtw89_dev *rtwdev) +{ + rtw89_leave_lps(rtwdev); +} + +static int rtw89_wow_config_mac(struct rtw89_dev *rtwdev, bool enable_wow) +{ + int ret; + + if (enable_wow) { + ret = rtw89_mac_resize_ple_rx_quota(rtwdev, true); + if (ret) { + rtw89_err(rtwdev, "[ERR]patch rx qta %d\n", ret); + return ret; + } + rtw89_write32_set(rtwdev, R_AX_RX_FUNCTION_STOP, B_AX_HDR_RX_STOP); + rtw89_write32_clr(rtwdev, R_AX_RX_FLTR_OPT, B_AX_SNIFFER_MODE); + rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, false); + rtw89_write32(rtwdev, R_AX_ACTION_FWD0, 0); + rtw89_write32(rtwdev, R_AX_ACTION_FWD1, 0); + rtw89_write32(rtwdev, R_AX_TF_FWD, 0); + rtw89_write32(rtwdev, R_AX_HW_RPT_FWD, 0); + } else { + ret = rtw89_mac_resize_ple_rx_quota(rtwdev, false); + if (ret) { + rtw89_err(rtwdev, "[ERR]patch rx qta %d\n", ret); + return ret; + } + rtw89_write32_clr(rtwdev, R_AX_RX_FUNCTION_STOP, B_AX_HDR_RX_STOP); + rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true); + rtw89_write32(rtwdev, R_AX_ACTION_FWD0, TRXCFG_MPDU_PROC_ACT_FRWD); + rtw89_write32(rtwdev, R_AX_TF_FWD, TRXCFG_MPDU_PROC_TF_FRWD); + } + + return 0; +} + +static void rtw89_wow_set_rx_filter(struct rtw89_dev *rtwdev, bool enable) +{ + enum rtw89_mac_fwd_target fwd_target = enable ? + RTW89_FWD_DONT_CARE : + RTW89_FWD_TO_HOST; + + rtw89_mac_typ_fltr_opt(rtwdev, RTW89_MGNT, fwd_target, RTW89_MAC_0); + rtw89_mac_typ_fltr_opt(rtwdev, RTW89_CTRL, fwd_target, RTW89_MAC_0); + rtw89_mac_typ_fltr_opt(rtwdev, RTW89_DATA, fwd_target, RTW89_MAC_0); +} + +static void rtw89_wow_show_wakeup_reason(struct rtw89_dev *rtwdev) +{ + enum rtw89_core_chip_id chip_id = rtwdev->chip->chip_id; + struct cfg80211_wowlan_nd_info nd_info; + struct cfg80211_wowlan_wakeup wakeup = { + .pattern_idx = -1, + }; + u32 wow_reason_reg; + u8 reason; + + if (chip_id == RTL8852A || chip_id == RTL8852B) + wow_reason_reg = R_AX_C2HREG_DATA3 + 3; + else + wow_reason_reg = R_AX_C2HREG_DATA3_V1 + 3; + + reason = rtw89_read8(rtwdev, wow_reason_reg); + + switch (reason) { + case RTW89_WOW_RSN_RX_DEAUTH: + wakeup.disconnect = true; + rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx deauth\n"); + break; + case RTW89_WOW_RSN_DISCONNECT: + wakeup.disconnect = true; + rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: AP is off\n"); + break; + case RTW89_WOW_RSN_RX_MAGIC_PKT: + wakeup.magic_pkt = true; + rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx magic packet\n"); + break; + case RTW89_WOW_RSN_RX_GTK_REKEY: + wakeup.gtk_rekey_failure = true; + rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx gtk rekey\n"); + break; + case RTW89_WOW_RSN_RX_PATTERN_MATCH: + /* Current firmware and driver don't report pattern index + * Use pattern_idx to 0 defaultly. + */ + wakeup.pattern_idx = 0; + rtw89_debug(rtwdev, RTW89_DBG_WOW, "WOW: Rx pattern match packet\n"); + break; + case RTW89_WOW_RSN_RX_NLO: + /* Current firmware and driver don't report ssid index. + * Use 0 for n_matches based on its comment. + */ + nd_info.n_matches = 0; + wakeup.net_detect = &nd_info; + rtw89_debug(rtwdev, RTW89_DBG_WOW, "Rx NLO\n"); + break; + default: + rtw89_warn(rtwdev, "Unknown wakeup reason %x\n", reason); + ieee80211_report_wowlan_wakeup(rtwdev->wow.wow_vif, NULL, + GFP_KERNEL); + return; + } + + ieee80211_report_wowlan_wakeup(rtwdev->wow.wow_vif, &wakeup, + GFP_KERNEL); +} + +static void rtw89_wow_vif_iter(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + struct ieee80211_vif *vif = rtwvif_to_vif(rtwvif); + + /* Current wowlan function support setting of only one STATION vif. + * So when one suitable vif is found, stop the iteration. + */ + if (rtw_wow->wow_vif || vif->type != NL80211_IFTYPE_STATION) + return; + + switch (rtwvif->net_type) { + case RTW89_NET_TYPE_INFRA: + rtw_wow->wow_vif = vif; + break; + case RTW89_NET_TYPE_NO_LINK: + default: + break; + } +} + +static u16 __rtw89_cal_crc16(u8 data, u16 crc) +{ + u8 shift_in, data_bit; + u8 crc_bit4, crc_bit11, crc_bit15; + u16 crc_result; + int index; + + for (index = 0; index < 8; index++) { + crc_bit15 = crc & BIT(15) ? 1 : 0; + data_bit = data & BIT(index) ? 1 : 0; + shift_in = crc_bit15 ^ data_bit; + + crc_result = crc << 1; + + if (shift_in == 0) + crc_result &= ~BIT(0); + else + crc_result |= BIT(0); + + crc_bit11 = (crc & BIT(11) ? 1 : 0) ^ shift_in; + + if (crc_bit11 == 0) + crc_result &= ~BIT(12); + else + crc_result |= BIT(12); + + crc_bit4 = (crc & BIT(4) ? 1 : 0) ^ shift_in; + + if (crc_bit4 == 0) + crc_result &= ~BIT(5); + else + crc_result |= BIT(5); + + crc = crc_result; + } + return crc; +} + +static u16 rtw89_calc_crc(u8 *pdata, int length) +{ + u16 crc = 0xffff; + int i; + + for (i = 0; i < length; i++) + crc = __rtw89_cal_crc16(pdata[i], crc); + + /* get 1' complement */ + return ~crc; +} + +static int rtw89_wow_pattern_get_type(struct rtw89_vif *rtwvif, + struct rtw89_wow_cam_info *rtw_pattern, + const u8 *pattern, u8 da_mask) +{ + u8 da[ETH_ALEN]; + + ether_addr_copy_mask(da, pattern, da_mask); + + /* Each pattern is divided into different kinds by DA address + * a. DA is broadcast address: set bc = 0; + * b. DA is multicast address: set mc = 0 + * c. DA is unicast address same as dev's mac address: set uc = 0 + * d. DA is unmasked. Also called wildcard type: set uc = bc = mc = 0 + * e. Others is invalid type. + */ + + if (is_broadcast_ether_addr(da)) + rtw_pattern->bc = true; + else if (is_multicast_ether_addr(da)) + rtw_pattern->mc = true; + else if (ether_addr_equal(da, rtwvif->mac_addr) && + da_mask == GENMASK(5, 0)) + rtw_pattern->uc = true; + else if (!da_mask) /*da_mask == 0 mean wildcard*/ + return 0; + else + return -EPERM; + + return 0; +} + +static int rtw89_wow_pattern_generate(struct rtw89_dev *rtwdev, + struct rtw89_vif *rtwvif, + const struct cfg80211_pkt_pattern *pkt_pattern, + struct rtw89_wow_cam_info *rtw_pattern) +{ + u8 mask_hw[RTW89_MAX_PATTERN_MASK_SIZE * 4] = {0}; + u8 content[RTW89_MAX_PATTERN_SIZE] = {0}; + const u8 *mask; + const u8 *pattern; + u8 mask_len; + u16 count; + u32 len; + int i, ret; + + pattern = pkt_pattern->pattern; + len = pkt_pattern->pattern_len; + mask = pkt_pattern->mask; + mask_len = DIV_ROUND_UP(len, 8); + memset(rtw_pattern, 0, sizeof(*rtw_pattern)); + + ret = rtw89_wow_pattern_get_type(rtwvif, rtw_pattern, pattern, + mask[0] & GENMASK(5, 0)); + if (ret) + return ret; + + /* translate mask from os to mask for hw + * pattern from OS uses 'ethenet frame', like this: + * | 6 | 6 | 2 | 20 | Variable | 4 | + * |--------+--------+------+-----------+------------+-----| + * | 802.3 Mac Header | IP Header | TCP Packet | FCS | + * | DA | SA | Type | + * + * BUT, packet catched by our HW is in '802.11 frame', begin from LLC + * | 24 or 30 | 6 | 2 | 20 | Variable | 4 | + * |-------------------+--------+------+-----------+------------+-----| + * | 802.11 MAC Header | LLC | IP Header | TCP Packet | FCS | + * | Others | Tpye | + * + * Therefore, we need translate mask_from_OS to mask_to_hw. + * We should left-shift mask by 6 bits, then set the new bit[0~5] = 0, + * because new mask[0~5] means 'SA', but our HW packet begins from LLC, + * bit[0~5] corresponds to first 6 Bytes in LLC, they just don't match. + */ + + /* Shift 6 bits */ + for (i = 0; i < mask_len - 1; i++) { + mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)) | + u8_get_bits(mask[i + 1], GENMASK(5, 0)) << 2; + } + mask_hw[i] = u8_get_bits(mask[i], GENMASK(7, 6)); + + /* Set bit 0-5 to zero */ + mask_hw[0] &= ~GENMASK(5, 0); + + memcpy(rtw_pattern->mask, mask_hw, sizeof(rtw_pattern->mask)); + + /* To get the wake up pattern from the mask. + * We do not count first 12 bits which means + * DA[6] and SA[6] in the pattern to match HW design. + */ + count = 0; + for (i = 12; i < len; i++) { + if ((mask[i / 8] >> (i % 8)) & 0x01) { + content[count] = pattern[i]; + count++; + } + } + + rtw_pattern->crc = rtw89_calc_crc(content, count); + + return 0; +} + +static int rtw89_wow_parse_patterns(struct rtw89_dev *rtwdev, + struct rtw89_vif *rtwvif, + struct cfg80211_wowlan *wowlan) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; + int i; + int ret; + + if (!wowlan->n_patterns || !wowlan->patterns) + return 0; + + for (i = 0; i < wowlan->n_patterns; i++) { + rtw_pattern = &rtw_wow->patterns[i]; + ret = rtw89_wow_pattern_generate(rtwdev, rtwvif, + &wowlan->patterns[i], + rtw_pattern); + if (ret) { + rtw89_err(rtwdev, "failed to generate pattern(%d)\n", i); + rtw_wow->pattern_cnt = 0; + return ret; + } + + rtw_pattern->r_w = true; + rtw_pattern->idx = i; + rtw_pattern->negative_pattern_match = false; + rtw_pattern->skip_mac_hdr = true; + rtw_pattern->valid = true; + } + rtw_wow->pattern_cnt = wowlan->n_patterns; + + return 0; +} + +static void rtw89_wow_pattern_clear_cam(struct rtw89_dev *rtwdev) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; + int i = 0; + + for (i = 0; i < rtw_wow->pattern_cnt; i++) { + rtw_pattern = &rtw_wow->patterns[i]; + rtw_pattern->valid = false; + rtw89_fw_wow_cam_update(rtwdev, rtw_pattern); + } +} + +static void rtw89_wow_pattern_write(struct rtw89_dev *rtwdev) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + struct rtw89_wow_cam_info *rtw_pattern = rtw_wow->patterns; + int i; + + for (i = 0; i < rtw_wow->pattern_cnt; i++) + rtw89_fw_wow_cam_update(rtwdev, rtw_pattern + i); +} + +static void rtw89_wow_pattern_clear(struct rtw89_dev *rtwdev) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + + rtw89_wow_pattern_clear_cam(rtwdev); + + rtw_wow->pattern_cnt = 0; + memset(rtw_wow->patterns, 0, sizeof(rtw_wow->patterns)); +} + +static void rtw89_wow_clear_wakeups(struct rtw89_dev *rtwdev) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + + rtw_wow->wow_vif = NULL; + rtw89_core_release_all_bits_map(rtw_wow->flags, RTW89_WOW_FLAG_NUM); + rtw_wow->pattern_cnt = 0; +} + +static int rtw89_wow_set_wakeups(struct rtw89_dev *rtwdev, + struct cfg80211_wowlan *wowlan) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + struct rtw89_vif *rtwvif; + + if (wowlan->disconnect) + set_bit(RTW89_WOW_FLAG_EN_DISCONNECT, rtw_wow->flags); + if (wowlan->magic_pkt) + set_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags); + + rtw89_for_each_rtwvif(rtwdev, rtwvif) + rtw89_wow_vif_iter(rtwdev, rtwvif); + + if (!rtw_wow->wow_vif) + return -EPERM; + + rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; + return rtw89_wow_parse_patterns(rtwdev, rtwvif, wowlan); +} + +static int rtw89_wow_cfg_wake(struct rtw89_dev *rtwdev, bool wow) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + struct ieee80211_vif *wow_vif = rtw_wow->wow_vif; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; + struct ieee80211_sta *wow_sta; + struct rtw89_sta *rtwsta = NULL; + bool is_conn = true; + int ret; + + wow_sta = ieee80211_find_sta(wow_vif, rtwvif->bssid); + if (wow_sta) + rtwsta = (struct rtw89_sta *)wow_sta->drv_priv; + else + is_conn = false; + + if (wow) { + if (rtw_wow->pattern_cnt) + rtwvif->wowlan_pattern = true; + if (test_bit(RTW89_WOW_FLAG_EN_MAGIC_PKT, rtw_wow->flags)) + rtwvif->wowlan_magic = true; + } else { + rtwvif->wowlan_pattern = false; + rtwvif->wowlan_magic = false; + } + + ret = rtw89_fw_h2c_wow_wakeup_ctrl(rtwdev, rtwvif, wow); + if (ret) { + rtw89_err(rtwdev, "failed to fw wow wakeup ctrl\n"); + return ret; + } + + if (wow) { + ret = rtw89_chip_h2c_dctl_sec_cam(rtwdev, rtwvif, rtwsta); + if (ret) { + rtw89_err(rtwdev, "failed to update dctl cam sec entry: %d\n", + ret); + return ret; + } + } + + ret = rtw89_fw_h2c_join_info(rtwdev, rtwvif, rtwsta, !is_conn); + if (ret) { + rtw89_warn(rtwdev, "failed to send h2c join info\n"); + return ret; + } + + ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL); + if (ret) { + rtw89_warn(rtwdev, "failed to send h2c cam\n"); + return ret; + } + + ret = rtw89_fw_h2c_wow_global(rtwdev, rtwvif, wow); + if (ret) { + rtw89_err(rtwdev, "failed to fw wow global\n"); + return ret; + } + + return 0; +} + +static int rtw89_wow_check_fw_status(struct rtw89_dev *rtwdev, bool wow_enable) +{ + u8 polling; + int ret; + + ret = read_poll_timeout_atomic(rtw89_read8_mask, polling, + wow_enable == !!polling, + 50, 50000, false, rtwdev, + R_AX_WOW_CTRL, B_AX_WOW_WOWEN); + if (ret) + rtw89_err(rtwdev, "failed to check wow status %s\n", + wow_enable ? "enabled" : "disabled"); + return ret; +} + +static void rtw89_wow_release_pkt_list(struct rtw89_dev *rtwdev) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + struct list_head *pkt_list = &rtw_wow->pkt_list; + struct rtw89_pktofld_info *info, *tmp; + + list_for_each_entry_safe(info, tmp, pkt_list, list) { + rtw89_fw_h2c_del_pkt_offload(rtwdev, info->id); + rtw89_core_release_bit_map(rtwdev->pkt_offload, + info->id); + list_del(&info->list); + kfree(info); + } +} + +static int rtw89_wow_swap_fw(struct rtw89_dev *rtwdev, bool wow) +{ + enum rtw89_fw_type fw_type = wow ? RTW89_FW_WOWLAN : RTW89_FW_NORMAL; + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + struct ieee80211_vif *wow_vif = rtw_wow->wow_vif; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)wow_vif->drv_priv; + struct ieee80211_sta *wow_sta; + struct rtw89_sta *rtwsta = NULL; + bool is_conn = true; + int ret; + + rtw89_hci_disable_intr(rtwdev); + + wow_sta = ieee80211_find_sta(wow_vif, rtwvif->bssid); + if (wow_sta) + rtwsta = (struct rtw89_sta *)wow_sta->drv_priv; + else + is_conn = false; + + ret = rtw89_fw_download(rtwdev, fw_type); + if (ret) { + rtw89_warn(rtwdev, "download fw failed\n"); + return ret; + } + + rtw89_phy_init_rf_reg(rtwdev, true); + + ret = rtw89_fw_h2c_role_maintain(rtwdev, rtwvif, rtwsta, + RTW89_ROLE_FW_RESTORE); + if (ret) { + rtw89_warn(rtwdev, "failed to send h2c role maintain\n"); + return ret; + } + + ret = rtw89_fw_h2c_assoc_cmac_tbl(rtwdev, wow_vif, wow_sta); + if (ret) { + rtw89_warn(rtwdev, "failed to send h2c assoc cmac tbl\n"); + return ret; + } + + if (!is_conn) + rtw89_cam_reset_keys(rtwdev); + + ret = rtw89_fw_h2c_join_info(rtwdev, rtwvif, rtwsta, !is_conn); + if (ret) { + rtw89_warn(rtwdev, "failed to send h2c join info\n"); + return ret; + } + + ret = rtw89_fw_h2c_cam(rtwdev, rtwvif, rtwsta, NULL); + if (ret) { + rtw89_warn(rtwdev, "failed to send h2c cam\n"); + return ret; + } + + if (is_conn) { + rtw89_phy_ra_assoc(rtwdev, wow_sta); + rtw89_phy_set_bss_color(rtwdev, wow_vif); + rtw89_chip_cfg_txpwr_ul_tb_offset(rtwdev, wow_vif); + } + + rtw89_mac_hw_mgnt_sec(rtwdev, wow); + rtw89_hci_enable_intr(rtwdev); + + return 0; +} + +static int rtw89_wow_enable_trx_pre(struct rtw89_dev *rtwdev) +{ + int ret; + + rtw89_hci_ctrl_txdma_ch(rtwdev, false); + rtw89_hci_ctrl_txdma_fw_ch(rtwdev, true); + + rtw89_mac_ptk_drop_by_band_and_wait(rtwdev, RTW89_MAC_0); + + ret = rtw89_hci_poll_txdma_ch(rtwdev); + if (ret) { + rtw89_err(rtwdev, "txdma ch busy\n"); + return ret; + } + rtw89_wow_set_rx_filter(rtwdev, true); + + ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, false); + if (ret) { + rtw89_err(rtwdev, "cfg ppdu status\n"); + return ret; + } + + return 0; +} + +static int rtw89_wow_enable_trx_post(struct rtw89_dev *rtwdev) +{ + int ret; + + rtw89_hci_disable_intr(rtwdev); + rtw89_hci_ctrl_trxhci(rtwdev, false); + + ret = rtw89_hci_poll_txdma_ch(rtwdev); + if (ret) { + rtw89_err(rtwdev, "failed to poll txdma ch idle pcie\n"); + return ret; + } + + ret = rtw89_wow_config_mac(rtwdev, true); + if (ret) { + rtw89_err(rtwdev, "failed to config mac\n"); + return ret; + } + + rtw89_wow_set_rx_filter(rtwdev, false); + rtw89_hci_reset(rtwdev); + + return 0; +} + +static int rtw89_wow_disable_trx_pre(struct rtw89_dev *rtwdev) +{ + int ret; + + rtw89_hci_clr_idx_all(rtwdev); + + ret = rtw89_hci_rst_bdram(rtwdev); + if (ret) { + rtw89_warn(rtwdev, "reset bdram busy\n"); + return ret; + } + + rtw89_hci_ctrl_trxhci(rtwdev, true); + rtw89_hci_ctrl_txdma_ch(rtwdev, true); + + ret = rtw89_wow_config_mac(rtwdev, false); + if (ret) { + rtw89_err(rtwdev, "failed to config mac\n"); + return ret; + } + rtw89_hci_enable_intr(rtwdev); + + return 0; +} + +static int rtw89_wow_disable_trx_post(struct rtw89_dev *rtwdev) +{ + int ret; + + ret = rtw89_mac_cfg_ppdu_status(rtwdev, RTW89_MAC_0, true); + if (ret) + rtw89_err(rtwdev, "cfg ppdu status\n"); + + return ret; +} + +static int rtw89_wow_fw_start(struct rtw89_dev *rtwdev) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; + int ret; + + rtw89_wow_pattern_write(rtwdev); + + ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif, true); + if (ret) { + rtw89_err(rtwdev, "wow: failed to enable keep alive\n"); + return ret; + } + + ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif, true); + if (ret) { + rtw89_err(rtwdev, "wow: failed to enable disconnect detect\n"); + goto out; + } + + ret = rtw89_wow_cfg_wake(rtwdev, true); + if (ret) { + rtw89_err(rtwdev, "wow: failed to config wake\n"); + goto out; + } + + ret = rtw89_wow_check_fw_status(rtwdev, true); + if (ret) { + rtw89_err(rtwdev, "wow: failed to check enable fw ready\n"); + goto out; + } + +out: + return ret; +} + +static int rtw89_wow_fw_stop(struct rtw89_dev *rtwdev) +{ + struct rtw89_wow_param *rtw_wow = &rtwdev->wow; + struct rtw89_vif *rtwvif = (struct rtw89_vif *)rtw_wow->wow_vif->drv_priv; + int ret; + + rtw89_wow_pattern_clear(rtwdev); + + ret = rtw89_fw_h2c_keep_alive(rtwdev, rtwvif, false); + if (ret) { + rtw89_err(rtwdev, "wow: failed to disable keep alive\n"); + goto out; + } + + rtw89_wow_release_pkt_list(rtwdev); + + ret = rtw89_fw_h2c_disconnect_detect(rtwdev, rtwvif, false); + if (ret) { + rtw89_err(rtwdev, "wow: failed to disable disconnect detect\n"); + goto out; + } + + ret = rtw89_wow_cfg_wake(rtwdev, false); + if (ret) { + rtw89_err(rtwdev, "wow: failed to disable config wake\n"); + goto out; + } + + ret = rtw89_wow_check_fw_status(rtwdev, false); + if (ret) { + rtw89_err(rtwdev, "wow: failed to check disable fw ready\n"); + goto out; + } + +out: + return ret; +} + +static int rtw89_wow_enable(struct rtw89_dev *rtwdev) +{ + int ret; + + set_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); + + ret = rtw89_wow_enable_trx_pre(rtwdev); + if (ret) { + rtw89_err(rtwdev, "wow: failed to enable trx_pre\n"); + goto out; + } + + ret = rtw89_wow_swap_fw(rtwdev, true); + if (ret) { + rtw89_err(rtwdev, "wow: failed to swap to wow fw\n"); + goto out; + } + + ret = rtw89_wow_fw_start(rtwdev); + if (ret) { + rtw89_err(rtwdev, "wow: failed to let wow fw start\n"); + goto out; + } + + rtw89_wow_enter_lps(rtwdev); + + ret = rtw89_wow_enable_trx_post(rtwdev); + if (ret) { + rtw89_err(rtwdev, "wow: failed to enable trx_post\n"); + goto out; + } + + return 0; + +out: + clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); + return ret; +} + +static int rtw89_wow_disable(struct rtw89_dev *rtwdev) +{ + int ret; + + ret = rtw89_wow_disable_trx_pre(rtwdev); + if (ret) { + rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); + goto out; + } + + rtw89_wow_leave_lps(rtwdev); + + ret = rtw89_wow_fw_stop(rtwdev); + if (ret) { + rtw89_err(rtwdev, "wow: failed to swap to normal fw\n"); + goto out; + } + + ret = rtw89_wow_swap_fw(rtwdev, false); + if (ret) { + rtw89_err(rtwdev, "wow: failed to disable trx_post\n"); + goto out; + } + + ret = rtw89_wow_disable_trx_post(rtwdev); + if (ret) { + rtw89_err(rtwdev, "wow: failed to disable trx_pre\n"); + goto out; + } + +out: + clear_bit(RTW89_FLAG_WOWLAN, rtwdev->flags); + return ret; +} + +int rtw89_wow_resume(struct rtw89_dev *rtwdev) +{ + int ret; + + if (!test_bit(RTW89_FLAG_WOWLAN, rtwdev->flags)) { + rtw89_err(rtwdev, "wow is not enabled\n"); + ret = -EPERM; + goto out; + } + + if (!rtw89_mac_get_power_state(rtwdev)) { + rtw89_err(rtwdev, "chip is no power when resume\n"); + ret = -EPERM; + goto out; + } + + rtw89_wow_leave_deep_ps(rtwdev); + + rtw89_wow_show_wakeup_reason(rtwdev); + + ret = rtw89_wow_disable(rtwdev); + if (ret) + rtw89_err(rtwdev, "failed to disable wow\n"); + +out: + rtw89_wow_clear_wakeups(rtwdev); + return ret; +} + +int rtw89_wow_suspend(struct rtw89_dev *rtwdev, struct cfg80211_wowlan *wowlan) +{ + int ret; + + ret = rtw89_wow_set_wakeups(rtwdev, wowlan); + if (ret) { + rtw89_err(rtwdev, "failed to set wakeup event\n"); + return ret; + } + + rtw89_wow_leave_lps(rtwdev); + + ret = rtw89_wow_enable(rtwdev); + if (ret) { + rtw89_err(rtwdev, "failed to enable wow\n"); + return ret; + } + + rtw89_wow_enter_deep_ps(rtwdev); + + return 0; +} |