| /* |
| * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com> |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include <linux/module.h> |
| #include <linux/firmware.h> |
| #include <linux/platform_device.h> |
| #include "wcn36xx.h" |
| |
| unsigned int wcn36xx_dbg_mask; |
| module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644); |
| MODULE_PARM_DESC(debug_mask, "Debugging mask"); |
| |
| #define CHAN2G(_freq, _idx) { \ |
| .band = IEEE80211_BAND_2GHZ, \ |
| .center_freq = (_freq), \ |
| .hw_value = (_idx), \ |
| .max_power = 25, \ |
| } |
| |
| #define CHAN5G(_freq, _idx) { \ |
| .band = IEEE80211_BAND_5GHZ, \ |
| .center_freq = (_freq), \ |
| .hw_value = (_idx), \ |
| .max_power = 25, \ |
| } |
| |
| /* The wcn firmware expects channel values to matching |
| * their mnemonic values. So use these for .hw_value. */ |
| static struct ieee80211_channel wcn_2ghz_channels[] = { |
| CHAN2G(2412, 1), /* Channel 1 */ |
| CHAN2G(2417, 2), /* Channel 2 */ |
| CHAN2G(2422, 3), /* Channel 3 */ |
| CHAN2G(2427, 4), /* Channel 4 */ |
| CHAN2G(2432, 5), /* Channel 5 */ |
| CHAN2G(2437, 6), /* Channel 6 */ |
| CHAN2G(2442, 7), /* Channel 7 */ |
| CHAN2G(2447, 8), /* Channel 8 */ |
| CHAN2G(2452, 9), /* Channel 9 */ |
| CHAN2G(2457, 10), /* Channel 10 */ |
| CHAN2G(2462, 11), /* Channel 11 */ |
| CHAN2G(2467, 12), /* Channel 12 */ |
| CHAN2G(2472, 13), /* Channel 13 */ |
| CHAN2G(2484, 14) /* Channel 14 */ |
| |
| }; |
| |
| static struct ieee80211_channel wcn_5ghz_channels[] = { |
| CHAN5G(5180, 36), |
| CHAN5G(5200, 40), |
| CHAN5G(5220, 44), |
| CHAN5G(5240, 48), |
| CHAN5G(5260, 52), |
| CHAN5G(5280, 56), |
| CHAN5G(5300, 60), |
| CHAN5G(5320, 64), |
| CHAN5G(5500, 100), |
| CHAN5G(5520, 104), |
| CHAN5G(5540, 108), |
| CHAN5G(5560, 112), |
| CHAN5G(5580, 116), |
| CHAN5G(5600, 120), |
| CHAN5G(5620, 124), |
| CHAN5G(5640, 128), |
| CHAN5G(5660, 132), |
| CHAN5G(5700, 140), |
| CHAN5G(5745, 149), |
| CHAN5G(5765, 153), |
| CHAN5G(5785, 157), |
| CHAN5G(5805, 161), |
| CHAN5G(5825, 165) |
| }; |
| |
| #define RATE(_bitrate, _hw_rate, _flags) { \ |
| .bitrate = (_bitrate), \ |
| .flags = (_flags), \ |
| .hw_value = (_hw_rate), \ |
| .hw_value_short = (_hw_rate) \ |
| } |
| |
| static struct ieee80211_rate wcn_2ghz_rates[] = { |
| RATE(10, HW_RATE_INDEX_1MBPS, 0), |
| RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE), |
| RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE), |
| RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE), |
| RATE(60, HW_RATE_INDEX_6MBPS, 0), |
| RATE(90, HW_RATE_INDEX_9MBPS, 0), |
| RATE(120, HW_RATE_INDEX_12MBPS, 0), |
| RATE(180, HW_RATE_INDEX_18MBPS, 0), |
| RATE(240, HW_RATE_INDEX_24MBPS, 0), |
| RATE(360, HW_RATE_INDEX_36MBPS, 0), |
| RATE(480, HW_RATE_INDEX_48MBPS, 0), |
| RATE(540, HW_RATE_INDEX_54MBPS, 0) |
| }; |
| |
| static struct ieee80211_rate wcn_5ghz_rates[] = { |
| RATE(60, HW_RATE_INDEX_6MBPS, 0), |
| RATE(90, HW_RATE_INDEX_9MBPS, 0), |
| RATE(120, HW_RATE_INDEX_12MBPS, 0), |
| RATE(180, HW_RATE_INDEX_18MBPS, 0), |
| RATE(240, HW_RATE_INDEX_24MBPS, 0), |
| RATE(360, HW_RATE_INDEX_36MBPS, 0), |
| RATE(480, HW_RATE_INDEX_48MBPS, 0), |
| RATE(540, HW_RATE_INDEX_54MBPS, 0) |
| }; |
| |
| static struct ieee80211_supported_band wcn_band_2ghz = { |
| .channels = wcn_2ghz_channels, |
| .n_channels = ARRAY_SIZE(wcn_2ghz_channels), |
| .bitrates = wcn_2ghz_rates, |
| .n_bitrates = ARRAY_SIZE(wcn_2ghz_rates), |
| .ht_cap = { |
| .cap = IEEE80211_HT_CAP_GRN_FLD | |
| IEEE80211_HT_CAP_SGI_20 | |
| IEEE80211_HT_CAP_DSSSCCK40 | |
| IEEE80211_HT_CAP_LSIG_TXOP_PROT, |
| .ht_supported = true, |
| .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, |
| .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16, |
| .mcs = { |
| .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
| .rx_highest = cpu_to_le16(72), |
| .tx_params = IEEE80211_HT_MCS_TX_DEFINED, |
| } |
| } |
| }; |
| |
| static struct ieee80211_supported_band wcn_band_5ghz = { |
| .channels = wcn_5ghz_channels, |
| .n_channels = ARRAY_SIZE(wcn_5ghz_channels), |
| .bitrates = wcn_5ghz_rates, |
| .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates), |
| .ht_cap = { |
| .cap = IEEE80211_HT_CAP_GRN_FLD | |
| IEEE80211_HT_CAP_SGI_20 | |
| IEEE80211_HT_CAP_DSSSCCK40 | |
| IEEE80211_HT_CAP_LSIG_TXOP_PROT | |
| IEEE80211_HT_CAP_SGI_40 | |
| IEEE80211_HT_CAP_SUP_WIDTH_20_40, |
| .ht_supported = true, |
| .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, |
| .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16, |
| .mcs = { |
| .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
| .rx_highest = cpu_to_le16(72), |
| .tx_params = IEEE80211_HT_MCS_TX_DEFINED, |
| } |
| } |
| }; |
| |
| #ifdef CONFIG_PM |
| |
| static const struct wiphy_wowlan_support wowlan_support = { |
| .flags = WIPHY_WOWLAN_ANY |
| }; |
| |
| #endif |
| |
| static inline u8 get_sta_index(struct ieee80211_vif *vif, |
| struct wcn36xx_sta *sta_priv) |
| { |
| return NL80211_IFTYPE_STATION == vif->type ? |
| sta_priv->bss_sta_index : |
| sta_priv->sta_index; |
| } |
| |
| static int wcn36xx_start(struct ieee80211_hw *hw) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| int ret; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n"); |
| |
| /* SMD initialization */ |
| ret = wcn36xx_smd_open(wcn); |
| if (ret) { |
| wcn36xx_err("Failed to open smd channel: %d\n", ret); |
| goto out_err; |
| } |
| |
| /* Allocate memory pools for Mgmt BD headers and Data BD headers */ |
| ret = wcn36xx_dxe_allocate_mem_pools(wcn); |
| if (ret) { |
| wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret); |
| goto out_smd_close; |
| } |
| |
| ret = wcn36xx_dxe_alloc_ctl_blks(wcn); |
| if (ret) { |
| wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret); |
| goto out_free_dxe_pool; |
| } |
| |
| wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL); |
| if (!wcn->hal_buf) { |
| wcn36xx_err("Failed to allocate smd buf\n"); |
| ret = -ENOMEM; |
| goto out_free_dxe_ctl; |
| } |
| |
| ret = wcn36xx_smd_load_nv(wcn); |
| if (ret) { |
| wcn36xx_err("Failed to push NV to chip\n"); |
| goto out_free_smd_buf; |
| } |
| |
| ret = wcn36xx_smd_start(wcn); |
| if (ret) { |
| wcn36xx_err("Failed to start chip\n"); |
| goto out_free_smd_buf; |
| } |
| |
| /* DMA channel initialization */ |
| ret = wcn36xx_dxe_init(wcn); |
| if (ret) { |
| wcn36xx_err("DXE init failed\n"); |
| goto out_smd_stop; |
| } |
| |
| wcn36xx_debugfs_init(wcn); |
| |
| if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) { |
| ret = wcn36xx_smd_feature_caps_exchange(wcn); |
| if (ret) |
| wcn36xx_warn("Exchange feature caps failed\n"); |
| } |
| INIT_LIST_HEAD(&wcn->vif_list); |
| return 0; |
| |
| out_smd_stop: |
| wcn36xx_smd_stop(wcn); |
| out_free_smd_buf: |
| kfree(wcn->hal_buf); |
| out_free_dxe_pool: |
| wcn36xx_dxe_free_mem_pools(wcn); |
| out_free_dxe_ctl: |
| wcn36xx_dxe_free_ctl_blks(wcn); |
| out_smd_close: |
| wcn36xx_smd_close(wcn); |
| out_err: |
| return ret; |
| } |
| |
| static void wcn36xx_stop(struct ieee80211_hw *hw) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n"); |
| |
| wcn36xx_debugfs_exit(wcn); |
| wcn36xx_smd_stop(wcn); |
| wcn36xx_dxe_deinit(wcn); |
| wcn36xx_smd_close(wcn); |
| |
| wcn36xx_dxe_free_mem_pools(wcn); |
| wcn36xx_dxe_free_ctl_blks(wcn); |
| |
| kfree(wcn->hal_buf); |
| } |
| |
| static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| struct ieee80211_vif *vif = NULL; |
| struct wcn36xx_vif *tmp; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed); |
| |
| if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
| int ch = WCN36XX_HW_CHANNEL(wcn); |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n", |
| ch); |
| list_for_each_entry(tmp, &wcn->vif_list, list) { |
| vif = container_of((void *)tmp, |
| struct ieee80211_vif, |
| drv_priv); |
| wcn36xx_smd_switch_channel(wcn, vif, ch); |
| } |
| } |
| |
| return 0; |
| } |
| |
| #define WCN36XX_SUPPORTED_FILTERS (0) |
| |
| static void wcn36xx_configure_filter(struct ieee80211_hw *hw, |
| unsigned int changed, |
| unsigned int *total, u64 multicast) |
| { |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n"); |
| |
| *total &= WCN36XX_SUPPORTED_FILTERS; |
| } |
| |
| static void wcn36xx_tx(struct ieee80211_hw *hw, |
| struct ieee80211_tx_control *control, |
| struct sk_buff *skb) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| struct wcn36xx_sta *sta_priv = NULL; |
| |
| if (control->sta) |
| sta_priv = (struct wcn36xx_sta *)control->sta->drv_priv; |
| |
| if (wcn36xx_start_tx(wcn, sta_priv, skb)) |
| ieee80211_free_txskb(wcn->hw, skb); |
| } |
| |
| static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key_conf) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv; |
| struct wcn36xx_sta *sta_priv = vif_priv->sta; |
| int ret = 0; |
| u8 key[WLAN_MAX_KEY_LEN]; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n"); |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n", |
| cmd, key_conf->cipher, key_conf->keyidx, |
| key_conf->keylen, key_conf->flags); |
| wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ", |
| key_conf->key, |
| key_conf->keylen); |
| |
| switch (key_conf->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40; |
| break; |
| case WLAN_CIPHER_SUITE_WEP104: |
| vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP; |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP; |
| break; |
| default: |
| wcn36xx_err("Unsupported key type 0x%x\n", |
| key_conf->cipher); |
| ret = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| switch (cmd) { |
| case SET_KEY: |
| if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) { |
| /* |
| * Supplicant is sending key in the wrong order: |
| * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b) |
| * but HW expects it to be in the order as described in |
| * IEEE 802.11 spec (see chapter 11.7) like this: |
| * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b) |
| */ |
| memcpy(key, key_conf->key, 16); |
| memcpy(key + 16, key_conf->key + 24, 8); |
| memcpy(key + 24, key_conf->key + 16, 8); |
| } else { |
| memcpy(key, key_conf->key, key_conf->keylen); |
| } |
| |
| if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) { |
| sta_priv->is_data_encrypted = true; |
| /* Reconfigure bss with encrypt_type */ |
| if (NL80211_IFTYPE_STATION == vif->type) |
| wcn36xx_smd_config_bss(wcn, |
| vif, |
| sta, |
| sta->addr, |
| true); |
| |
| wcn36xx_smd_set_stakey(wcn, |
| vif_priv->encrypt_type, |
| key_conf->keyidx, |
| key_conf->keylen, |
| key, |
| get_sta_index(vif, sta_priv)); |
| } else { |
| wcn36xx_smd_set_bsskey(wcn, |
| vif_priv->encrypt_type, |
| key_conf->keyidx, |
| key_conf->keylen, |
| key); |
| if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) || |
| (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) { |
| sta_priv->is_data_encrypted = true; |
| wcn36xx_smd_set_stakey(wcn, |
| vif_priv->encrypt_type, |
| key_conf->keyidx, |
| key_conf->keylen, |
| key, |
| get_sta_index(vif, sta_priv)); |
| } |
| } |
| break; |
| case DISABLE_KEY: |
| if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) { |
| wcn36xx_smd_remove_bsskey(wcn, |
| vif_priv->encrypt_type, |
| key_conf->keyidx); |
| } else { |
| sta_priv->is_data_encrypted = false; |
| /* do not remove key if disassociated */ |
| if (sta_priv->aid) |
| wcn36xx_smd_remove_stakey(wcn, |
| vif_priv->encrypt_type, |
| key_conf->keyidx, |
| get_sta_index(vif, sta_priv)); |
| } |
| break; |
| default: |
| wcn36xx_err("Unsupported key cmd 0x%x\n", cmd); |
| ret = -EOPNOTSUPP; |
| goto out; |
| break; |
| } |
| |
| out: |
| return ret; |
| } |
| |
| static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| |
| wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN); |
| wcn36xx_smd_start_scan(wcn); |
| } |
| |
| static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| |
| wcn36xx_smd_end_scan(wcn); |
| wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN); |
| } |
| |
| static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta, |
| enum ieee80211_band band) |
| { |
| int i, size; |
| u16 *rates_table; |
| struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv; |
| u32 rates = sta->supp_rates[band]; |
| |
| memset(&sta_priv->supported_rates, 0, |
| sizeof(sta_priv->supported_rates)); |
| sta_priv->supported_rates.op_rate_mode = STA_11n; |
| |
| size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates); |
| rates_table = sta_priv->supported_rates.dsss_rates; |
| if (band == IEEE80211_BAND_2GHZ) { |
| for (i = 0; i < size; i++) { |
| if (rates & 0x01) { |
| rates_table[i] = wcn_2ghz_rates[i].hw_value; |
| rates = rates >> 1; |
| } |
| } |
| } |
| |
| size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates); |
| rates_table = sta_priv->supported_rates.ofdm_rates; |
| for (i = 0; i < size; i++) { |
| if (rates & 0x01) { |
| rates_table[i] = wcn_5ghz_rates[i].hw_value; |
| rates = rates >> 1; |
| } |
| } |
| |
| if (sta->ht_cap.ht_supported) { |
| BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) > |
| sizeof(sta_priv->supported_rates.supported_mcs_set)); |
| memcpy(sta_priv->supported_rates.supported_mcs_set, |
| sta->ht_cap.mcs.rx_mask, |
| sizeof(sta->ht_cap.mcs.rx_mask)); |
| } |
| } |
| void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates) |
| { |
| u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = { |
| HW_RATE_INDEX_6MBPS, |
| HW_RATE_INDEX_9MBPS, |
| HW_RATE_INDEX_12MBPS, |
| HW_RATE_INDEX_18MBPS, |
| HW_RATE_INDEX_24MBPS, |
| HW_RATE_INDEX_36MBPS, |
| HW_RATE_INDEX_48MBPS, |
| HW_RATE_INDEX_54MBPS |
| }; |
| u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = { |
| HW_RATE_INDEX_1MBPS, |
| HW_RATE_INDEX_2MBPS, |
| HW_RATE_INDEX_5_5MBPS, |
| HW_RATE_INDEX_11MBPS |
| }; |
| |
| rates->op_rate_mode = STA_11n; |
| memcpy(rates->dsss_rates, dsss_rates, |
| sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES); |
| memcpy(rates->ofdm_rates, ofdm_rates, |
| sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES); |
| rates->supported_mcs_set[0] = 0xFF; |
| } |
| static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_bss_conf *bss_conf, |
| u32 changed) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| struct sk_buff *skb = NULL; |
| u16 tim_off, tim_len; |
| enum wcn36xx_hal_link_state link_state; |
| struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n", |
| vif, changed); |
| |
| if (changed & BSS_CHANGED_BEACON_INFO) { |
| wcn36xx_dbg(WCN36XX_DBG_MAC, |
| "mac bss changed dtim period %d\n", |
| bss_conf->dtim_period); |
| |
| vif_priv->dtim_period = bss_conf->dtim_period; |
| } |
| |
| if (changed & BSS_CHANGED_PS) { |
| wcn36xx_dbg(WCN36XX_DBG_MAC, |
| "mac bss PS set %d\n", |
| bss_conf->ps); |
| if (bss_conf->ps) { |
| wcn36xx_pmc_enter_bmps_state(wcn, vif); |
| } else { |
| wcn36xx_pmc_exit_bmps_state(wcn, vif); |
| } |
| } |
| |
| if (changed & BSS_CHANGED_BSSID) { |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n", |
| bss_conf->bssid); |
| |
| if (!is_zero_ether_addr(bss_conf->bssid)) { |
| vif_priv->is_joining = true; |
| vif_priv->bss_index = 0xff; |
| wcn36xx_smd_join(wcn, bss_conf->bssid, |
| vif->addr, WCN36XX_HW_CHANNEL(wcn)); |
| wcn36xx_smd_config_bss(wcn, vif, NULL, |
| bss_conf->bssid, false); |
| } else { |
| vif_priv->is_joining = false; |
| wcn36xx_smd_delete_bss(wcn, vif); |
| } |
| } |
| |
| if (changed & BSS_CHANGED_SSID) { |
| wcn36xx_dbg(WCN36XX_DBG_MAC, |
| "mac bss changed ssid\n"); |
| wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ", |
| bss_conf->ssid, bss_conf->ssid_len); |
| |
| vif_priv->ssid.length = bss_conf->ssid_len; |
| memcpy(&vif_priv->ssid.ssid, |
| bss_conf->ssid, |
| bss_conf->ssid_len); |
| } |
| |
| if (changed & BSS_CHANGED_ASSOC) { |
| vif_priv->is_joining = false; |
| if (bss_conf->assoc) { |
| struct ieee80211_sta *sta; |
| struct wcn36xx_sta *sta_priv; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, |
| "mac assoc bss %pM vif %pM AID=%d\n", |
| bss_conf->bssid, |
| vif->addr, |
| bss_conf->aid); |
| |
| rcu_read_lock(); |
| sta = ieee80211_find_sta(vif, bss_conf->bssid); |
| if (!sta) { |
| wcn36xx_err("sta %pM is not found\n", |
| bss_conf->bssid); |
| rcu_read_unlock(); |
| goto out; |
| } |
| sta_priv = (struct wcn36xx_sta *)sta->drv_priv; |
| |
| wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); |
| |
| wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, |
| vif->addr, |
| WCN36XX_HAL_LINK_POSTASSOC_STATE); |
| wcn36xx_smd_config_bss(wcn, vif, sta, |
| bss_conf->bssid, |
| true); |
| sta_priv->aid = bss_conf->aid; |
| /* |
| * config_sta must be called from because this is the |
| * place where AID is available. |
| */ |
| wcn36xx_smd_config_sta(wcn, vif, sta); |
| rcu_read_unlock(); |
| } else { |
| wcn36xx_dbg(WCN36XX_DBG_MAC, |
| "disassociated bss %pM vif %pM AID=%d\n", |
| bss_conf->bssid, |
| vif->addr, |
| bss_conf->aid); |
| wcn36xx_smd_set_link_st(wcn, |
| bss_conf->bssid, |
| vif->addr, |
| WCN36XX_HAL_LINK_IDLE_STATE); |
| } |
| } |
| |
| if (changed & BSS_CHANGED_AP_PROBE_RESP) { |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n"); |
| skb = ieee80211_proberesp_get(hw, vif); |
| if (!skb) { |
| wcn36xx_err("failed to alloc probereq skb\n"); |
| goto out; |
| } |
| |
| wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb); |
| dev_kfree_skb(skb); |
| } |
| |
| if (changed & BSS_CHANGED_BEACON_ENABLED || |
| changed & BSS_CHANGED_BEACON) { |
| wcn36xx_dbg(WCN36XX_DBG_MAC, |
| "mac bss changed beacon enabled %d\n", |
| bss_conf->enable_beacon); |
| |
| if (bss_conf->enable_beacon) { |
| vif_priv->bss_index = 0xff; |
| wcn36xx_smd_config_bss(wcn, vif, NULL, |
| vif->addr, false); |
| skb = ieee80211_beacon_get_tim(hw, vif, &tim_off, |
| &tim_len); |
| if (!skb) { |
| wcn36xx_err("failed to alloc beacon skb\n"); |
| goto out; |
| } |
| wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0); |
| dev_kfree_skb(skb); |
| |
| if (vif->type == NL80211_IFTYPE_ADHOC || |
| vif->type == NL80211_IFTYPE_MESH_POINT) |
| link_state = WCN36XX_HAL_LINK_IBSS_STATE; |
| else |
| link_state = WCN36XX_HAL_LINK_AP_STATE; |
| |
| wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, |
| link_state); |
| } else { |
| wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, |
| WCN36XX_HAL_LINK_IDLE_STATE); |
| wcn36xx_smd_delete_bss(wcn, vif); |
| } |
| } |
| out: |
| return; |
| } |
| |
| /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */ |
| static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value); |
| |
| wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value); |
| return 0; |
| } |
| |
| static void wcn36xx_remove_interface(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv; |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif); |
| |
| list_del(&vif_priv->list); |
| wcn36xx_smd_delete_sta_self(wcn, vif->addr); |
| } |
| |
| static int wcn36xx_add_interface(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n", |
| vif, vif->type); |
| |
| if (!(NL80211_IFTYPE_STATION == vif->type || |
| NL80211_IFTYPE_AP == vif->type || |
| NL80211_IFTYPE_ADHOC == vif->type || |
| NL80211_IFTYPE_MESH_POINT == vif->type)) { |
| wcn36xx_warn("Unsupported interface type requested: %d\n", |
| vif->type); |
| return -EOPNOTSUPP; |
| } |
| |
| list_add(&vif_priv->list, &wcn->vif_list); |
| wcn36xx_smd_add_sta_self(wcn, vif); |
| |
| return 0; |
| } |
| |
| static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv; |
| struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv; |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n", |
| vif, sta->addr); |
| |
| vif_priv->sta = sta_priv; |
| sta_priv->vif = vif_priv; |
| /* |
| * For STA mode HW will be configured on BSS_CHANGED_ASSOC because |
| * at this stage AID is not available yet. |
| */ |
| if (NL80211_IFTYPE_STATION != vif->type) { |
| wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); |
| sta_priv->aid = sta->aid; |
| wcn36xx_smd_config_sta(wcn, vif, sta); |
| } |
| return 0; |
| } |
| |
| static int wcn36xx_sta_remove(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv; |
| struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n", |
| vif, sta->addr, sta_priv->sta_index); |
| |
| wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index); |
| vif_priv->sta = NULL; |
| sta_priv->vif = NULL; |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| |
| static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n"); |
| |
| flush_workqueue(wcn->hal_ind_wq); |
| wcn36xx_smd_set_power_params(wcn, true); |
| return 0; |
| } |
| |
| static int wcn36xx_resume(struct ieee80211_hw *hw) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n"); |
| |
| flush_workqueue(wcn->hal_ind_wq); |
| wcn36xx_smd_set_power_params(wcn, false); |
| return 0; |
| } |
| |
| #endif |
| |
| static int wcn36xx_ampdu_action(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| enum ieee80211_ampdu_mlme_action action, |
| struct ieee80211_sta *sta, u16 tid, u16 *ssn, |
| u8 buf_size) |
| { |
| struct wcn36xx *wcn = hw->priv; |
| struct wcn36xx_sta *sta_priv = NULL; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n", |
| action, tid); |
| |
| sta_priv = (struct wcn36xx_sta *)sta->drv_priv; |
| |
| switch (action) { |
| case IEEE80211_AMPDU_RX_START: |
| sta_priv->tid = tid; |
| wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0, |
| get_sta_index(vif, sta_priv)); |
| wcn36xx_smd_add_ba(wcn); |
| wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv)); |
| ieee80211_start_tx_ba_session(sta, tid, 0); |
| break; |
| case IEEE80211_AMPDU_RX_STOP: |
| wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv)); |
| break; |
| case IEEE80211_AMPDU_TX_START: |
| ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
| break; |
| case IEEE80211_AMPDU_TX_OPERATIONAL: |
| wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1, |
| get_sta_index(vif, sta_priv)); |
| break; |
| case IEEE80211_AMPDU_TX_STOP_FLUSH: |
| case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: |
| case IEEE80211_AMPDU_TX_STOP_CONT: |
| ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
| break; |
| default: |
| wcn36xx_err("Unknown AMPDU action\n"); |
| } |
| |
| return 0; |
| } |
| |
| static const struct ieee80211_ops wcn36xx_ops = { |
| .start = wcn36xx_start, |
| .stop = wcn36xx_stop, |
| .add_interface = wcn36xx_add_interface, |
| .remove_interface = wcn36xx_remove_interface, |
| #ifdef CONFIG_PM |
| .suspend = wcn36xx_suspend, |
| .resume = wcn36xx_resume, |
| #endif |
| .config = wcn36xx_config, |
| .configure_filter = wcn36xx_configure_filter, |
| .tx = wcn36xx_tx, |
| .set_key = wcn36xx_set_key, |
| .sw_scan_start = wcn36xx_sw_scan_start, |
| .sw_scan_complete = wcn36xx_sw_scan_complete, |
| .bss_info_changed = wcn36xx_bss_info_changed, |
| .set_rts_threshold = wcn36xx_set_rts_threshold, |
| .sta_add = wcn36xx_sta_add, |
| .sta_remove = wcn36xx_sta_remove, |
| .ampdu_action = wcn36xx_ampdu_action, |
| }; |
| |
| static int wcn36xx_init_ieee80211(struct wcn36xx *wcn) |
| { |
| int ret = 0; |
| |
| static const u32 cipher_suites[] = { |
| WLAN_CIPHER_SUITE_WEP40, |
| WLAN_CIPHER_SUITE_WEP104, |
| WLAN_CIPHER_SUITE_TKIP, |
| WLAN_CIPHER_SUITE_CCMP, |
| }; |
| |
| wcn->hw->flags = IEEE80211_HW_SIGNAL_DBM | |
| IEEE80211_HW_HAS_RATE_CONTROL | |
| IEEE80211_HW_SUPPORTS_PS | |
| IEEE80211_HW_CONNECTION_MONITOR | |
| IEEE80211_HW_AMPDU_AGGREGATION | |
| IEEE80211_HW_TIMING_BEACON_ONLY; |
| |
| wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
| BIT(NL80211_IFTYPE_AP) | |
| BIT(NL80211_IFTYPE_ADHOC) | |
| BIT(NL80211_IFTYPE_MESH_POINT); |
| |
| wcn->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wcn_band_2ghz; |
| wcn->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wcn_band_5ghz; |
| |
| wcn->hw->wiphy->cipher_suites = cipher_suites; |
| wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); |
| |
| wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; |
| |
| #ifdef CONFIG_PM |
| wcn->hw->wiphy->wowlan = &wowlan_support; |
| #endif |
| |
| wcn->hw->max_listen_interval = 200; |
| |
| wcn->hw->queues = 4; |
| |
| SET_IEEE80211_DEV(wcn->hw, wcn->dev); |
| |
| wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta); |
| wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif); |
| |
| return ret; |
| } |
| |
| static int wcn36xx_platform_get_resources(struct wcn36xx *wcn, |
| struct platform_device *pdev) |
| { |
| struct resource *res; |
| /* Set TX IRQ */ |
| res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, |
| "wcnss_wlantx_irq"); |
| if (!res) { |
| wcn36xx_err("failed to get tx_irq\n"); |
| return -ENOENT; |
| } |
| wcn->tx_irq = res->start; |
| |
| /* Set RX IRQ */ |
| res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, |
| "wcnss_wlanrx_irq"); |
| if (!res) { |
| wcn36xx_err("failed to get rx_irq\n"); |
| return -ENOENT; |
| } |
| wcn->rx_irq = res->start; |
| |
| /* Map the memory */ |
| res = platform_get_resource_byname(pdev, IORESOURCE_MEM, |
| "wcnss_mmio"); |
| if (!res) { |
| wcn36xx_err("failed to get mmio\n"); |
| return -ENOENT; |
| } |
| wcn->mmio = ioremap(res->start, resource_size(res)); |
| if (!wcn->mmio) { |
| wcn36xx_err("failed to map io memory\n"); |
| return -ENOMEM; |
| } |
| return 0; |
| } |
| |
| static int wcn36xx_probe(struct platform_device *pdev) |
| { |
| struct ieee80211_hw *hw; |
| struct wcn36xx *wcn; |
| int ret; |
| u8 addr[ETH_ALEN]; |
| |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n"); |
| |
| hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops); |
| if (!hw) { |
| wcn36xx_err("failed to alloc hw\n"); |
| ret = -ENOMEM; |
| goto out_err; |
| } |
| platform_set_drvdata(pdev, hw); |
| wcn = hw->priv; |
| wcn->hw = hw; |
| wcn->dev = &pdev->dev; |
| wcn->ctrl_ops = pdev->dev.platform_data; |
| |
| mutex_init(&wcn->hal_mutex); |
| |
| if (!wcn->ctrl_ops->get_hw_mac(addr)) { |
| wcn36xx_info("mac address: %pM\n", addr); |
| SET_IEEE80211_PERM_ADDR(wcn->hw, addr); |
| } |
| |
| ret = wcn36xx_platform_get_resources(wcn, pdev); |
| if (ret) |
| goto out_wq; |
| |
| wcn36xx_init_ieee80211(wcn); |
| ret = ieee80211_register_hw(wcn->hw); |
| if (ret) |
| goto out_unmap; |
| |
| return 0; |
| |
| out_unmap: |
| iounmap(wcn->mmio); |
| out_wq: |
| ieee80211_free_hw(hw); |
| out_err: |
| return ret; |
| } |
| static int wcn36xx_remove(struct platform_device *pdev) |
| { |
| struct ieee80211_hw *hw = platform_get_drvdata(pdev); |
| struct wcn36xx *wcn = hw->priv; |
| wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n"); |
| |
| release_firmware(wcn->nv); |
| mutex_destroy(&wcn->hal_mutex); |
| |
| ieee80211_unregister_hw(hw); |
| iounmap(wcn->mmio); |
| ieee80211_free_hw(hw); |
| |
| return 0; |
| } |
| static const struct platform_device_id wcn36xx_platform_id_table[] = { |
| { |
| .name = "wcn36xx", |
| .driver_data = 0 |
| }, |
| {} |
| }; |
| MODULE_DEVICE_TABLE(platform, wcn36xx_platform_id_table); |
| |
| static struct platform_driver wcn36xx_driver = { |
| .probe = wcn36xx_probe, |
| .remove = wcn36xx_remove, |
| .driver = { |
| .name = "wcn36xx", |
| .owner = THIS_MODULE, |
| }, |
| .id_table = wcn36xx_platform_id_table, |
| }; |
| |
| static int __init wcn36xx_init(void) |
| { |
| platform_driver_register(&wcn36xx_driver); |
| return 0; |
| } |
| module_init(wcn36xx_init); |
| |
| static void __exit wcn36xx_exit(void) |
| { |
| platform_driver_unregister(&wcn36xx_driver); |
| } |
| module_exit(wcn36xx_exit); |
| |
| MODULE_LICENSE("Dual BSD/GPL"); |
| MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com"); |
| MODULE_FIRMWARE(WLAN_NV_FILE); |