[PATCH 01/16] wcn36xx: Add main.c
Eugene Krasnikov
k.eugene.e at gmail.com
Tue Aug 20 13:41:04 EDT 2013
Main file.
Signed-off-by: Eugene Krasnikov <k.eugene.e at gmail.com>
---
drivers/net/wireless/ath/wcn36xx/main.c | 1034 +++++++++++++++++++++++++++++++
1 file changed, 1034 insertions(+)
create mode 100644 drivers/net/wireless/ath/wcn36xx/main.c
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
new file mode 100644
index 0000000..c2d1026
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -0,0 +1,1034 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e at 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.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include "wcn36xx.h"
+
+unsigned int debug_mask;
+module_param(debug_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,
+ }
+ }
+};
+
+static const struct ieee80211_iface_limit if_limits[] = {
+ { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) },
+ { .max = 1, .types = BIT(NL80211_IFTYPE_AP) },
+};
+
+static const struct ieee80211_iface_combination if_comb = {
+ .limits = if_limits,
+ .n_limits = ARRAY_SIZE(if_limits),
+ .max_interfaces = 2,
+ .num_different_channels = 1,
+};
+
+#ifdef CONFIG_PM
+
+static const struct wiphy_wowlan_support wowlan_support = {
+ .flags = WIPHY_WOWLAN_ANY,
+ .n_patterns = 0,
+};
+
+#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");
+
+ /* SMD initialization */
+ ret = wcn36xx_smd_open(wcn);
+ if (ret) {
+ wcn36xx_error("Failed to open smd channel: %d", 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_error("Failed to alloc DXE mempool: %d", ret);
+ goto out_smd_close;
+ }
+
+ ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
+ if (ret) {
+ wcn36xx_error("Failed to alloc DXE ctl blocks: %d", ret);
+ goto out_free_dxe_pool;
+ }
+
+ /* Maximum SMD message size is 4k */
+ wcn->smd_buf = kmalloc(WCN36XX_SMD_BUF_SIZE, GFP_KERNEL);
+ if (!wcn->smd_buf) {
+ wcn36xx_error("Failed to allocate smd buf");
+ ret = -ENOMEM;
+ goto out_free_dxe_ctl;
+ }
+
+ ret = wcn36xx_smd_load_nv(wcn);
+ if (ret) {
+ wcn36xx_error("Failed to push NV to chip");
+ goto out_free_smd_buf;
+ }
+
+ ret = wcn36xx_smd_start(wcn);
+ if (ret) {
+ wcn36xx_error("Failed to start chip");
+ goto out_free_smd_buf;
+ }
+
+ /* DMA channel initialization */
+ ret = wcn36xx_dxe_init(wcn);
+ if (ret) {
+ wcn36xx_error("DXE init failed");
+ goto out_smd_stop;
+ }
+
+ wcn36xx_pmc_init(wcn);
+ 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");
+ }
+
+ return 0;
+
+out_smd_stop:
+ wcn36xx_smd_stop(wcn);
+out_free_smd_buf:
+ kfree(wcn->smd_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");
+
+ 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->smd_buf);
+}
+
+static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
+{
+ struct wcn36xx *wcn = hw->priv;
+
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x", changed);
+
+ if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+ int ch = WCN36XX_HW_CHANNEL(wcn);
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d",
+ ch);
+ wcn36xx_smd_switch_channel(wcn, 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");
+
+ changed &= WCN36XX_SUPPORTED_FILTERS;
+ *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;
+
+ wcn36xx_start_tx(wcn, sta_priv, 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_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+ int ret = 0;
+ u8 key[WLAN_MAX_KEY_LEN];
+
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key");
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x",
+ 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_CCMP:
+ wcn->encrypt_type = WCN36XX_HAL_ED_CCMP;
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ wcn->encrypt_type = WCN36XX_HAL_ED_TKIP;
+ break;
+ default:
+ wcn36xx_error("Unsupported key type 0x%x",
+ key_conf->cipher);
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ switch (cmd) {
+ case SET_KEY:
+ if (WCN36XX_HAL_ED_TKIP == wcn->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,
+ wcn->encrypt_type,
+ key_conf->keyidx,
+ key_conf->keylen,
+ key,
+ get_sta_index(vif, sta_priv));
+ } else {
+ wcn36xx_smd_set_bsskey(wcn,
+ wcn->encrypt_type,
+ key_conf->keyidx,
+ key_conf->keylen,
+ key);
+ }
+ break;
+ case DISABLE_KEY:
+ if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
+ wcn36xx_smd_remove_bsskey(wcn,
+ wcn->encrypt_type,
+ key_conf->keyidx);
+ } else {
+ sta_priv->is_data_encrypted = false;
+ /* do not remove key if disassociated */
+ if (wcn->aid)
+ wcn36xx_smd_remove_stakey(wcn,
+ wcn->encrypt_type,
+ key_conf->keyidx,
+ get_sta_index(vif, sta_priv));
+ }
+ break;
+ default:
+ wcn36xx_error("Unsupported key cmd 0x%x", 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);
+ 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);
+}
+
+static void wcn36xx_update_allowed_rates(struct wcn36xx *wcn,
+ struct ieee80211_sta *sta)
+{
+ int i, size;
+ u16 *rates_table;
+ u32 rates = sta->supp_rates[wcn->hw->conf.chandef.chan->band];
+
+ memset(&wcn->supported_rates, 0, sizeof(wcn->supported_rates));
+ wcn->supported_rates.op_rate_mode = STA_11n;
+
+ size = ARRAY_SIZE(wcn->supported_rates.dsss_rates);
+ rates_table = wcn->supported_rates.dsss_rates;
+ if (wcn->hw->conf.chandef.chan->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(wcn->supported_rates.ofdm_rates);
+ rates_table = wcn->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) {
+ memcpy(wcn->supported_rates.supported_mcs_set,
+ sta->ht_cap.mcs.rx_mask,
+ sizeof(sta->ht_cap.mcs.rx_mask));
+ BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
+ sizeof(wcn->supported_rates.supported_mcs_set));
+ }
+}
+
+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;
+
+ wcn->current_vif = (struct wcn36xx_vif *)vif->drv_priv;
+
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x",
+ vif, changed);
+
+ if (changed & BSS_CHANGED_BEACON_INFO) {
+ wcn36xx_dbg(WCN36XX_DBG_MAC,
+ "mac bss changed dtim period %d",
+ bss_conf->dtim_period);
+
+ wcn->dtim_period = bss_conf->dtim_period;
+ }
+
+ if (changed & BSS_CHANGED_BSSID) {
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM",
+ bss_conf->bssid);
+
+ if (!is_zero_ether_addr(bss_conf->bssid)) {
+ wcn->is_joining = true;
+ wcn->current_vif->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 {
+ wcn->is_joining = false;
+ wcn36xx_smd_delete_bss(wcn);
+ }
+ }
+
+ if (changed & BSS_CHANGED_SSID) {
+ wcn36xx_dbg(WCN36XX_DBG_MAC,
+ "mac bss changed ssid");
+ wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
+ bss_conf->ssid, bss_conf->ssid_len);
+
+ wcn->ssid.length = bss_conf->ssid_len;
+ memcpy(&wcn->ssid.ssid, bss_conf->ssid, bss_conf->ssid_len);
+ }
+
+ if (changed & BSS_CHANGED_ASSOC) {
+ wcn->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",
+ bss_conf->bssid,
+ vif->addr,
+ bss_conf->aid);
+
+ wcn->aid = bss_conf->aid;
+
+ rcu_read_lock();
+ sta = ieee80211_find_sta(vif, bss_conf->bssid);
+ if (!sta) {
+ wcn36xx_error("sta %pM is not found",
+ bss_conf->bssid);
+ rcu_read_unlock();
+ goto out;
+ }
+ sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+
+ wcn36xx_update_allowed_rates(wcn, sta);
+
+ wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
+ vif->addr,
+ WCN36XX_HAL_LINK_POSTASSOC_STATE);
+ wcn->sta = sta_priv;
+ wcn36xx_smd_config_bss(wcn, vif, sta,
+ bss_conf->bssid,
+ true);
+ rcu_read_unlock();
+ } else {
+ wcn36xx_dbg(WCN36XX_DBG_MAC,
+ "disassociated bss %pM vif %pM AID=%d",
+ bss_conf->bssid,
+ vif->addr,
+ bss_conf->aid);
+ wcn->aid = 0;
+ 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");
+ skb = ieee80211_proberesp_get(hw, vif);
+ if (!skb) {
+ wcn36xx_error("failed to alloc probereq skb");
+ goto out;
+ }
+
+ wcn36xx_smd_update_proberesp_tmpl(wcn, skb);
+ dev_kfree_skb(skb);
+ }
+
+ if (changed & BSS_CHANGED_BEACON_ENABLED) {
+ wcn36xx_dbg(WCN36XX_DBG_MAC,
+ "mac bss changed beacon enabled %d",
+ bss_conf->enable_beacon);
+
+ if (bss_conf->enable_beacon) {
+ wcn->current_vif->bss_index = 0xff;
+ wcn36xx_smd_config_bss(wcn, vif, NULL,
+ wcn->addresses.addr, false);
+ skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
+ &tim_len);
+ if (!skb) {
+ wcn36xx_error("failed to alloc beacon skb");
+ goto out;
+ }
+ wcn36xx_smd_send_beacon(wcn, 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);
+ }
+ }
+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", 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;
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p", vif);
+ 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;
+
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d",
+ vif, vif->type);
+
+ wcn->current_vif = (struct wcn36xx_vif *)vif->drv_priv;
+
+ switch (vif->type) {
+ case NL80211_IFTYPE_STATION:
+ wcn36xx_smd_add_sta_self(wcn, vif->addr, 0);
+ break;
+ case NL80211_IFTYPE_AP:
+ wcn36xx_smd_add_sta_self(wcn, vif->addr, 0);
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_MESH_POINT:
+ wcn36xx_smd_add_sta_self(wcn, vif->addr, 0);
+ break;
+ default:
+ wcn36xx_warn("Unsupported interface type requested: %d",
+ vif->type);
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct wcn36xx *wcn = hw->priv;
+
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM",
+ vif, sta->addr);
+
+ wcn->sta = (struct wcn36xx_sta *)sta->drv_priv;
+ wcn->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_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d",
+ vif, sta->addr, sta_priv->sta_index);
+
+ wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
+{
+ struct wcn36xx *wcn = hw->priv;
+ struct ieee80211_vif *vif = container_of((void *)wcn->current_vif,
+ struct ieee80211_vif,
+ drv_priv);
+
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend");
+
+ mutex_lock(&wcn->pm_mutex);
+
+ /* Enter BMPS only in connected state */
+ if ((wcn->aid > 0) &&
+ (wcn->pw_state != WCN36XX_BMPS) &&
+ (NL80211_IFTYPE_STATION == vif->type))
+ wcn36xx_pmc_enter_bmps_state(wcn, vif->bss_conf.sync_tsf);
+
+ wcn->is_suspended = true;
+ wcn->is_con_lost_pending = false;
+
+ mutex_unlock(&wcn->pm_mutex);
+
+ return 0;
+}
+
+static int wcn36xx_resume(struct ieee80211_hw *hw)
+{
+ struct wcn36xx *wcn = hw->priv;
+ struct ieee80211_vif *vif = container_of((void *)wcn->current_vif,
+ struct ieee80211_vif,
+ drv_priv);
+
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume");
+
+ wcn->is_suspended = false;
+
+ if (wcn->pw_state == WCN36XX_BMPS)
+ wcn36xx_pmc_exit_bmps_state(wcn);
+
+ if (wcn->is_con_lost_pending) {
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "report connection lost");
+ ieee80211_connection_loss(vif);
+ }
+
+ 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",
+ 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;
+ /* Not supported so far*/
+ case IEEE80211_AMPDU_TX_STOP_CONT:
+ ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ break;
+ case IEEE80211_AMPDU_TX_STOP_FLUSH:
+ case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+ break;
+ default:
+ wcn36xx_error("Unknown AMPDU action");
+ }
+
+ 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_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->iface_combinations = &if_comb;
+ wcn->hw->wiphy->n_iface_combinations = 1;
+
+ wcn->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wcn_band_2ghz;
+ wcn->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wcn_band_5ghz;
+
+ wcn->hw->wiphy->max_scan_ssids = 1;
+
+ 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->wiphy->n_addresses = 1;
+ wcn->hw->wiphy->addresses = &wcn->addresses;
+
+ 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_error("failed to get tx_irq");
+ return -ENOENT;
+ }
+ wcn->tx_irq = res->start;
+
+ /* Set RX IRQ */
+ res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+ "wcnss_wlanrx_irq");
+ if (!res) {
+ wcn36xx_error("failed to get rx_irq");
+ return -ENOENT;
+ }
+ wcn->rx_irq = res->start;
+
+ /* Map the memory */
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ "wcnss_mmio");
+ if (!res) {
+ wcn36xx_error("failed to get mmio");
+ return -ENOENT;
+ }
+ wcn->mmio = ioremap(res->start, resource_size(res));
+ if (!wcn->mmio) {
+ wcn36xx_error("failed to map io memory");
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+static int wcn36xx_probe(struct platform_device *pdev)
+{
+ struct ieee80211_hw *hw;
+ struct wcn36xx *wcn;
+ int ret;
+ 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
+ };
+ wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe");
+
+ hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
+ if (!hw) {
+ wcn36xx_error("failed to alloc hw");
+ 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->pm_mutex);
+ mutex_init(&wcn->smd_mutex);
+
+ /* Configuring supported rates */
+ wcn->supported_rates.op_rate_mode = STA_11n;
+ memcpy(wcn->supported_rates.dsss_rates, dsss_rates,
+ sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
+ memcpy(wcn->supported_rates.ofdm_rates, ofdm_rates,
+ sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
+ wcn->supported_rates.supported_mcs_set[0] = 0xFF;
+
+ if (!wcn->ctrl_ops->get_hw_mac(wcn->addresses.addr)) {
+ wcn36xx_info("mac address: %pM", wcn->addresses.addr);
+ SET_IEEE80211_PERM_ADDR(wcn->hw, wcn->addresses.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");
+
+ mutex_destroy(&wcn->pm_mutex);
+ mutex_destroy(&wcn->smd_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 at gmail.com");
+MODULE_FIRMWARE(WLAN_NV_FILE);
--
1.8.2.2
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