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Subject: [PATCH 03/24] ath6kl: add cfg80211.c

Signed-off-by: Kalle Valo <[email protected]>
---
drivers/net/wireless/ath/ath6kl/cfg80211.c | 1641 ++++++++++++++++++++++++++++
1 files changed, 1641 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/wireless/ath/ath6kl/cfg80211.c

diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c
new file mode 100644
index 0000000..9dd132d
--- /dev/null
+++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c
@@ -0,0 +1,1641 @@
+/*
+ * Copyright (c) 2004-2011 Atheros Communications Inc.
+ *
+ * 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 "core.h"
+#include "cfg80211.h"
+#include "debug.h"
+
+#define RATETAB_ENT(_rate, _rateid, _flags) { \
+ .bitrate = (_rate), \
+ .flags = (_flags), \
+ .hw_value = (_rateid), \
+}
+
+#define CHAN2G(_channel, _freq, _flags) { \
+ .band = IEEE80211_BAND_2GHZ, \
+ .hw_value = (_channel), \
+ .center_freq = (_freq), \
+ .flags = (_flags), \
+ .max_antenna_gain = 0, \
+ .max_power = 30, \
+}
+
+#define CHAN5G(_channel, _flags) { \
+ .band = IEEE80211_BAND_5GHZ, \
+ .hw_value = (_channel), \
+ .center_freq = 5000 + (5 * (_channel)), \
+ .flags = (_flags), \
+ .max_antenna_gain = 0, \
+ .max_power = 30, \
+}
+
+static struct ieee80211_rate ath6kl_rates[] = {
+ RATETAB_ENT(10, 0x1, 0),
+ RATETAB_ENT(20, 0x2, 0),
+ RATETAB_ENT(55, 0x4, 0),
+ RATETAB_ENT(110, 0x8, 0),
+ RATETAB_ENT(60, 0x10, 0),
+ RATETAB_ENT(90, 0x20, 0),
+ RATETAB_ENT(120, 0x40, 0),
+ RATETAB_ENT(180, 0x80, 0),
+ RATETAB_ENT(240, 0x100, 0),
+ RATETAB_ENT(360, 0x200, 0),
+ RATETAB_ENT(480, 0x400, 0),
+ RATETAB_ENT(540, 0x800, 0),
+};
+
+#define ath6kl_a_rates (ath6kl_rates + 4)
+#define ath6kl_a_rates_size 8
+#define ath6kl_g_rates (ath6kl_rates + 0)
+#define ath6kl_g_rates_size 12
+
+static struct ieee80211_channel ath6kl_2ghz_channels[] = {
+ CHAN2G(1, 2412, 0),
+ CHAN2G(2, 2417, 0),
+ CHAN2G(3, 2422, 0),
+ CHAN2G(4, 2427, 0),
+ CHAN2G(5, 2432, 0),
+ CHAN2G(6, 2437, 0),
+ CHAN2G(7, 2442, 0),
+ CHAN2G(8, 2447, 0),
+ CHAN2G(9, 2452, 0),
+ CHAN2G(10, 2457, 0),
+ CHAN2G(11, 2462, 0),
+ CHAN2G(12, 2467, 0),
+ CHAN2G(13, 2472, 0),
+ CHAN2G(14, 2484, 0),
+};
+
+static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
+ CHAN5G(34, 0), CHAN5G(36, 0),
+ CHAN5G(38, 0), CHAN5G(40, 0),
+ CHAN5G(42, 0), CHAN5G(44, 0),
+ CHAN5G(46, 0), CHAN5G(48, 0),
+ CHAN5G(52, 0), CHAN5G(56, 0),
+ CHAN5G(60, 0), CHAN5G(64, 0),
+ CHAN5G(100, 0), CHAN5G(104, 0),
+ CHAN5G(108, 0), CHAN5G(112, 0),
+ CHAN5G(116, 0), CHAN5G(120, 0),
+ CHAN5G(124, 0), CHAN5G(128, 0),
+ CHAN5G(132, 0), CHAN5G(136, 0),
+ CHAN5G(140, 0), CHAN5G(149, 0),
+ CHAN5G(153, 0), CHAN5G(157, 0),
+ CHAN5G(161, 0), CHAN5G(165, 0),
+ CHAN5G(184, 0), CHAN5G(188, 0),
+ CHAN5G(192, 0), CHAN5G(196, 0),
+ CHAN5G(200, 0), CHAN5G(204, 0),
+ CHAN5G(208, 0), CHAN5G(212, 0),
+ CHAN5G(216, 0),
+};
+
+static struct ieee80211_supported_band ath6kl_band_2ghz = {
+ .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
+ .channels = ath6kl_2ghz_channels,
+ .n_bitrates = ath6kl_g_rates_size,
+ .bitrates = ath6kl_g_rates,
+};
+
+static struct ieee80211_supported_band ath6kl_band_5ghz = {
+ .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
+ .channels = ath6kl_5ghz_a_channels,
+ .n_bitrates = ath6kl_a_rates_size,
+ .bitrates = ath6kl_a_rates,
+};
+
+static int ath6kl_set_wpa_version(struct ath6kl *ar,
+ enum nl80211_wpa_versions wpa_version)
+{
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
+
+ if (!wpa_version) {
+ ar->auth_mode = NONE_AUTH;
+ } else if (wpa_version & NL80211_WPA_VERSION_1) {
+ ar->auth_mode = WPA_AUTH;
+ } else if (wpa_version & NL80211_WPA_VERSION_2) {
+ ar->auth_mode = WPA2_AUTH;
+ } else {
+ ath6kl_err("%s: %u not spported\n", __func__, wpa_version);
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static int ath6kl_set_auth_type(struct ath6kl *ar,
+ enum nl80211_auth_type auth_type)
+{
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
+
+ switch (auth_type) {
+ case NL80211_AUTHTYPE_OPEN_SYSTEM:
+ ar->dot11_auth_mode = OPEN_AUTH;
+ break;
+ case NL80211_AUTHTYPE_SHARED_KEY:
+ ar->dot11_auth_mode = SHARED_AUTH;
+ break;
+ case NL80211_AUTHTYPE_NETWORK_EAP:
+ ar->dot11_auth_mode = LEAP_AUTH;
+ break;
+
+ case NL80211_AUTHTYPE_AUTOMATIC:
+ ar->dot11_auth_mode = OPEN_AUTH;
+ ar->auto_auth_stage = AUTH_OPEN_IN_PROGRESS;
+ break;
+
+ default:
+ ar->dot11_auth_mode = OPEN_AUTH;
+ ath6kl_err("%s: 0x%x not spported\n", __func__, auth_type);
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static int ath6kl_set_cipher(struct ath6kl *ar, u32 cipher, bool ucast)
+{
+ u8 *ar_cipher = ucast ? &ar->prwise_crypto : &ar->grp_crypto;
+ u8 *ar_cipher_len = ucast ? &ar->prwise_crypto_len : &ar->grp_crpto_len;
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
+ __func__, cipher, ucast);
+
+ switch (cipher) {
+ case 0:
+ case IW_AUTH_CIPHER_NONE:
+ *ar_cipher = NONE_CRYPT;
+ *ar_cipher_len = 0;
+ break;
+ case WLAN_CIPHER_SUITE_WEP40:
+ *ar_cipher = WEP_CRYPT;
+ *ar_cipher_len = 5;
+ break;
+ case WLAN_CIPHER_SUITE_WEP104:
+ *ar_cipher = WEP_CRYPT;
+ *ar_cipher_len = 13;
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ *ar_cipher = TKIP_CRYPT;
+ *ar_cipher_len = 0;
+ break;
+ case WLAN_CIPHER_SUITE_CCMP:
+ *ar_cipher = AES_CRYPT;
+ *ar_cipher_len = 0;
+ break;
+ default:
+ ath6kl_err("%s: cipher 0x%x not supported\n", __func__, cipher);
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static void ath6kl_set_key_mgmt(struct ath6kl *ar, u32 key_mgmt)
+{
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
+
+ if (key_mgmt == WLAN_AKM_SUITE_PSK) {
+ if (ar->auth_mode == WPA_AUTH)
+ ar->auth_mode = WPA_PSK_AUTH;
+ else if (ar->auth_mode == WPA2_AUTH)
+ ar->auth_mode = WPA2_PSK_AUTH;
+ } else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
+ ar->auth_mode = NONE_AUTH;
+ }
+}
+
+static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_connect_params *sme)
+{
+ struct ath6kl *ar = ath6kl_priv(dev);
+ int status;
+
+ ar->sme_state = SME_CONNECTING;
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready yet\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
+ ath6kl_err("%s: destroy in progress\n", __func__);
+ return -EBUSY;
+ }
+
+ if (!sme->ssid_len || sme->ssid_len > IEEE80211_MAX_SSID_LEN) {
+ ath6kl_err("%s: ssid invalid\n", __func__);
+ return -EINVAL;
+ }
+
+ if (test_bit(SKIP_SCAN, &ar->flag) &&
+ ((sme->channel && sme->channel->center_freq == 0) ||
+ (sme->bssid && is_zero_ether_addr(sme->bssid)))) {
+ ath6kl_err("%s: SkipScan: channel or bssid invalid\n",
+ __func__);
+ return -EINVAL;
+ }
+
+ if (down_interruptible(&ar->sem)) {
+ ath6kl_err("%s: busy, couldn't get access\n", __func__);
+ return -ERESTARTSYS;
+ }
+
+ if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
+ ath6kl_err("%s: busy, destroy in progress\n", __func__);
+ up(&ar->sem);
+ return -EBUSY;
+ }
+
+ if (ar->tx_pending[wmi_get_control_ep(ar->wmi)]) {
+ /*
+ * sleep until the command queue drains
+ */
+ wait_event_interruptible_timeout(ar->event_wq,
+ ar->
+ tx_pending[wmi_get_control_ep
+ (ar->wmi)] == 0,
+ WMI_TIMEOUT);
+ if (signal_pending(current)) {
+ ath6kl_err("%s: cmd queue drain timeout\n", __func__);
+ up(&ar->sem);
+ return -EINTR;
+ }
+ }
+
+ if (test_bit(CONNECTED, &ar->flag) &&
+ ar->ssid_len == sme->ssid_len &&
+ !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) {
+ ar->reconnect_flag = true;
+ status = wmi_reconnect_cmd(ar->wmi, ar->req_bssid, ar->ch_hint);
+
+ up(&ar->sem);
+ if (status) {
+ ath6kl_err("%s: wmi_reconnect_cmd failed\n", __func__);
+ return -EIO;
+ }
+ return 0;
+ } else if (ar->ssid_len == sme->ssid_len &&
+ !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) {
+ ath6kl_disconnect(ar);
+ }
+
+ memset(ar->ssid, 0, sizeof(ar->ssid));
+ ar->ssid_len = sme->ssid_len;
+ memcpy(ar->ssid, sme->ssid, sme->ssid_len);
+
+ if (sme->channel)
+ ar->ch_hint = sme->channel->center_freq;
+
+ memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
+ if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
+ memcpy(ar->req_bssid, sme->bssid, sizeof(ar->req_bssid));
+
+ ath6kl_set_wpa_version(ar, sme->crypto.wpa_versions);
+ ath6kl_set_auth_type(ar, sme->auth_type);
+
+ if (sme->crypto.n_ciphers_pairwise)
+ ath6kl_set_cipher(ar, sme->crypto.ciphers_pairwise[0], true);
+ else
+ ath6kl_set_cipher(ar, IW_AUTH_CIPHER_NONE, true);
+
+ ath6kl_set_cipher(ar, sme->crypto.cipher_group, false);
+
+ if (sme->crypto.n_akm_suites)
+ ath6kl_set_key_mgmt(ar, sme->crypto.akm_suites[0]);
+
+ if ((sme->key_len) &&
+ (ar->auth_mode == NONE_AUTH) && (ar->prwise_crypto == WEP_CRYPT)) {
+ struct ath6kl_key *key = NULL;
+
+ if (sme->key_idx < WMI_MIN_KEY_INDEX
+ || sme->key_idx > WMI_MAX_KEY_INDEX) {
+ ath6kl_err("%s: key index %d out of bounds\n", __func__,
+ sme->key_idx);
+ up(&ar->sem);
+ return -ENOENT;
+ }
+
+ key = &ar->keys[sme->key_idx];
+ key->key_len = sme->key_len;
+ memcpy(key->key, sme->key, key->key_len);
+ key->cipher = ar->prwise_crypto;
+ ar->def_txkey_index = sme->key_idx;
+
+ wmi_addkey_cmd(ar->wmi, sme->key_idx,
+ ar->prwise_crypto,
+ GROUP_USAGE | TX_USAGE,
+ key->key_len,
+ NULL,
+ key->key, KEY_OP_INIT_VAL, NULL,
+ NO_SYNC_WMIFLAG);
+ }
+
+ if (!ar->usr_bss_filter) {
+ if (wmi_bssfilter_cmd(ar->wmi, ALL_BSS_FILTER, 0) != 0) {
+ ath6kl_err("%s: couldn't set bss filtering\n",
+ __func__);
+ up(&ar->sem);
+ return -EIO;
+ }
+ }
+
+ ar->nw_type = ar->next_mode;
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: connect called with authmode %d dot11 auth %d"
+ " PW crypto %d PW crypto Len %d GRP crypto %d"
+ " GRP crypto Len %d channel hint %u\n", __func__,
+ ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto,
+ ar->prwise_crypto_len, ar->grp_crypto,
+ ar->grp_crpto_len, ar->ch_hint);
+
+ ar->reconnect_flag = 0;
+ status = wmi_connect_cmd(ar->wmi, ar->nw_type,
+ ar->dot11_auth_mode, ar->auth_mode,
+ ar->prwise_crypto, ar->prwise_crypto_len,
+ ar->grp_crypto, ar->grp_crpto_len,
+ ar->ssid_len, ar->ssid,
+ ar->req_bssid, ar->ch_hint,
+ ar->connect_ctrl_flags);
+
+ up(&ar->sem);
+
+ if (status == -EINVAL) {
+ memset(ar->ssid, 0, sizeof(ar->ssid));
+ ar->ssid_len = 0;
+ ath6kl_err("%s: invalid request\n", __func__);
+ return -ENOENT;
+ } else if (status) {
+ ath6kl_err("%s: wmi_connect_cmd failed\n", __func__);
+ return -EIO;
+ }
+
+ if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
+ ((ar->auth_mode == WPA_PSK_AUTH)
+ || (ar->auth_mode == WPA2_PSK_AUTH))) {
+ mod_timer(&ar->disconnect_timer,
+ jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
+ }
+
+ ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
+ set_bit(CONNECT_PEND, &ar->flag);
+
+ return 0;
+}
+
+void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel,
+ u8 *bssid, u16 listen_intvl,
+ u16 beacon_intvl,
+ enum network_type nw_type,
+ u8 beacon_ie_len, u8 assoc_req_len,
+ u8 assoc_resp_len, u8 *assoc_info)
+{
+ u16 size = 0;
+ u16 capability = 0;
+ struct cfg80211_bss *bss = NULL;
+ struct ieee80211_mgmt *mgmt = NULL;
+ struct ieee80211_channel *ibss_ch = NULL;
+ s32 signal = 50 * 100;
+ u8 ie_buf_len = 0;
+ unsigned char ie_buf[256];
+ unsigned char *ptr_ie_buf = ie_buf;
+ unsigned char *ieeemgmtbuf = NULL;
+ u8 source_mac[ETH_ALEN];
+ u16 capa_mask;
+ u16 capa_val;
+
+ /* capinfo + listen interval */
+ u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
+
+ /* capinfo + status code + associd */
+ u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
+
+ u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
+ u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
+ assoc_resp_ie_offset;
+
+ assoc_req_len -= assoc_req_ie_offset;
+ assoc_resp_len -= assoc_resp_ie_offset;
+
+ ar->auto_auth_stage = AUTH_IDLE;
+
+ if (nw_type & ADHOC_NETWORK) {
+ if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: ath6k not in ibss mode\n", __func__);
+ return;
+ }
+ }
+
+ if (nw_type & INFRA_NETWORK) {
+ if (ar->wdev->iftype != NL80211_IFTYPE_STATION) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: ath6k not in station mode\n", __func__);
+ return;
+ }
+ }
+
+ if (nw_type & ADHOC_NETWORK) {
+ capa_mask = WLAN_CAPABILITY_IBSS;
+ capa_val = WLAN_CAPABILITY_IBSS;
+ } else {
+ capa_mask = WLAN_CAPABILITY_ESS;
+ capa_val = WLAN_CAPABILITY_ESS;
+ }
+
+ /* Before informing the join/connect event, make sure that
+ * bss entry is present in scan list, if it not present
+ * construct and insert into scan list, otherwise that
+ * event will be dropped on the way by cfg80211, due to
+ * this keys will not be plumbed in case of WEP and
+ * application will not be aware of join/connect status. */
+ bss = cfg80211_get_bss(ar->wdev->wiphy, NULL, bssid,
+ ar->wdev->ssid, ar->wdev->ssid_len,
+ capa_mask, capa_val);
+
+ /*
+ * Earlier we were updating the cfg about bss by making a beacon frame
+ * only if the entry for bss is not there. This can have some issue if
+ * ROAM event is generated and a heavy traffic is ongoing. The ROAM
+ * event is handled through a work queue and by the time it really gets
+ * handled, BSS would have been aged out. So it is better to update the
+ * cfg about BSS irrespective of its entry being present right now or
+ * not.
+ */
+
+ if (nw_type & ADHOC_NETWORK) {
+ /* construct 802.11 mgmt beacon */
+ if (ptr_ie_buf) {
+ *ptr_ie_buf++ = WLAN_EID_SSID;
+ *ptr_ie_buf++ = ar->ssid_len;
+ memcpy(ptr_ie_buf, ar->ssid, ar->ssid_len);
+ ptr_ie_buf += ar->ssid_len;
+
+ *ptr_ie_buf++ = WLAN_EID_IBSS_PARAMS;
+ *ptr_ie_buf++ = 2; /* length */
+ *ptr_ie_buf++ = 0; /* ATIM window */
+ *ptr_ie_buf++ = 0; /* ATIM window */
+
+ /* TODO: update ibss params and include supported rates,
+ * DS param set, extened support rates, wmm. */
+
+ ie_buf_len = ptr_ie_buf - ie_buf;
+ }
+
+ capability |= WLAN_CAPABILITY_IBSS;
+
+ if (ar->prwise_crypto == WEP_CRYPT)
+ capability |= WLAN_CAPABILITY_PRIVACY;
+
+ memcpy(source_mac, ar->net_dev->dev_addr, ETH_ALEN);
+ ptr_ie_buf = ie_buf;
+ } else {
+ capability = *(u16 *) (&assoc_info[beacon_ie_len]);
+ memcpy(source_mac, bssid, ETH_ALEN);
+ ptr_ie_buf = assoc_req_ie;
+ ie_buf_len = assoc_req_len;
+ }
+
+ size = offsetof(struct ieee80211_mgmt, u)
+ + sizeof(mgmt->u.beacon)
+ + ie_buf_len;
+
+ ieeemgmtbuf = kzalloc(size, GFP_ATOMIC);
+ if (!ieeemgmtbuf) {
+ ath6kl_err("%s: ieee mgmt buf alloc error\n", __func__);
+ cfg80211_put_bss(bss);
+ return;
+ }
+
+ mgmt = (struct ieee80211_mgmt *)ieeemgmtbuf;
+ mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+ IEEE80211_STYPE_BEACON);
+ memset(mgmt->da, 0xff, ETH_ALEN); /* broadcast addr */
+ memcpy(mgmt->sa, source_mac, ETH_ALEN);
+ memcpy(mgmt->bssid, bssid, ETH_ALEN);
+ mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_intvl);
+ mgmt->u.beacon.capab_info = cpu_to_le16(capability);
+ memcpy(mgmt->u.beacon.variable, ptr_ie_buf, ie_buf_len);
+
+ ibss_ch = ieee80211_get_channel(ar->wdev->wiphy, (int)channel);
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: inform bss with bssid %pM "
+ "channel %d beacon_intvl %d "
+ "capability 0x%x\n", __func__,
+ mgmt->bssid, ibss_ch->hw_value, beacon_intvl, capability);
+
+ bss = cfg80211_inform_bss_frame(ar->wdev->wiphy,
+ ibss_ch, mgmt,
+ size, signal, GFP_KERNEL);
+ kfree(ieeemgmtbuf);
+ cfg80211_put_bss(bss);
+
+ if (nw_type & ADHOC_NETWORK) {
+ cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL);
+ return;
+ }
+
+ if (!test_bit(CONNECTED, &ar->flag)) {
+ /* inform connect result to cfg80211 */
+ ar->sme_state = SME_DISCONNECTED;
+ cfg80211_connect_result(ar->net_dev, bssid,
+ assoc_req_ie, assoc_req_len,
+ assoc_resp_ie, assoc_resp_len,
+ WLAN_STATUS_SUCCESS, GFP_KERNEL);
+ } else {
+ /* inform roam event to cfg80211 */
+ cfg80211_roamed(ar->net_dev, ibss_ch, bssid,
+ assoc_req_ie, assoc_req_len,
+ assoc_resp_ie, assoc_resp_len, GFP_KERNEL);
+ }
+}
+
+static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
+ struct net_device *dev, u16 reason_code)
+{
+ struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev);
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
+ reason_code);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
+ ath6kl_err("%s: busy, destroy in progress\n", __func__);
+ return -EBUSY;
+ }
+
+ if (down_interruptible(&ar->sem)) {
+ ath6kl_err("%s: busy, couldn't get access\n", __func__);
+ return -ERESTARTSYS;
+ }
+
+ ar->reconnect_flag = 0;
+ ath6kl_disconnect(ar);
+ memset(ar->ssid, 0, sizeof(ar->ssid));
+ ar->ssid_len = 0;
+
+ if (!test_bit(SKIP_SCAN, &ar->flag))
+ memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
+
+ up(&ar->sem);
+
+ return 0;
+}
+
+void ath6kl_cfg80211_disconnect_event(struct ath6kl *ar, u8 reason,
+ u8 *bssid, u8 assoc_resp_len,
+ u8 *assoc_info, u16 proto_reason)
+{
+ struct ath6kl_key *key = NULL;
+ u16 status;
+
+ if (ar->scan_req) {
+ cfg80211_scan_done(ar->scan_req, true);
+ ar->scan_req = NULL;
+ }
+
+ if (ar->nw_type & ADHOC_NETWORK) {
+ if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: ath6k not in ibss mode\n", __func__);
+ return;
+ }
+ memset(bssid, 0, ETH_ALEN);
+ cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL);
+ return;
+ }
+
+ if (ar->nw_type & INFRA_NETWORK) {
+ if (ar->wdev->iftype != NL80211_IFTYPE_STATION) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: ath6k not in station mode\n", __func__);
+ return;
+ }
+ }
+
+ if (!test_bit(CONNECT_PEND, &ar->flag)) {
+ if (reason != DISCONNECT_CMD)
+ wmi_disconnect_cmd(ar->wmi);
+
+ return;
+ }
+
+ if (reason == NO_NETWORK_AVAIL) {
+ /* connect cmd failed */
+ wmi_disconnect_cmd(ar->wmi);
+ return;
+ }
+
+ if (reason != DISCONNECT_CMD)
+ return;
+
+ if (!ar->auto_auth_stage) {
+ clear_bit(CONNECT_PEND, &ar->flag);
+
+ if (ar->sme_state == SME_CONNECTING) {
+ cfg80211_connect_result(ar->net_dev,
+ bssid, NULL, 0,
+ NULL, 0,
+ WLAN_STATUS_UNSPECIFIED_FAILURE,
+ GFP_KERNEL);
+ } else {
+ cfg80211_disconnected(ar->net_dev, reason,
+ NULL, 0, GFP_KERNEL);
+ }
+
+ ar->sme_state = SME_DISCONNECTED;
+ return;
+ }
+
+ if (ar->dot11_auth_mode != OPEN_AUTH)
+ return;
+
+ /*
+ * If the current auth algorithm is open, try shared and
+ * make autoAuthStage idle. We do not make it leap for now
+ * being.
+ */
+ key = &ar->keys[ar->def_txkey_index];
+ if (down_interruptible(&ar->sem)) {
+ ath6kl_err("%s: busy, couldn't get access\n", __func__);
+ return;
+ }
+
+ ar->dot11_auth_mode = SHARED_AUTH;
+ ar->auto_auth_stage = AUTH_IDLE;
+
+ wmi_addkey_cmd(ar->wmi,
+ ar->def_txkey_index,
+ ar->prwise_crypto,
+ GROUP_USAGE | TX_USAGE,
+ key->key_len, NULL,
+ key->key,
+ KEY_OP_INIT_VAL, NULL,
+ NO_SYNC_WMIFLAG);
+
+ status = wmi_connect_cmd(ar->wmi,
+ ar->nw_type,
+ ar->dot11_auth_mode,
+ ar->auth_mode,
+ ar->prwise_crypto,
+ ar->prwise_crypto_len,
+ ar->grp_crypto,
+ ar->grp_crpto_len,
+ ar->ssid_len,
+ ar->ssid,
+ ar->req_bssid,
+ ar->ch_hint,
+ ar->connect_ctrl_flags);
+ up(&ar->sem);
+}
+
+static inline bool is_ch_11a(u16 ch)
+{
+ return (!((ch >= 2412) && (ch <= 2484)));
+}
+
+static void ath6kl_cfg80211_scan_node(void *arg, struct bss *ni)
+{
+ struct wiphy *wiphy = (struct wiphy *)arg;
+ u16 size;
+ unsigned char *ieeemgmtbuf = NULL;
+ struct ieee80211_mgmt *mgmt;
+ struct ieee80211_channel *channel;
+ struct ieee80211_supported_band *band;
+ struct ieee80211_common_ie *cie;
+ s32 signal;
+ int freq;
+
+ cie = &ni->ni_cie;
+
+ if (is_ch_11a(cie->ie_chan))
+ band = wiphy->bands[IEEE80211_BAND_5GHZ]; /* 11a */
+ else if ((cie->ie_erp) || (cie->ie_xrates))
+ band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11g */
+ else
+ band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11b */
+
+ size = ni->ni_framelen + offsetof(struct ieee80211_mgmt, u);
+ ieeemgmtbuf = kmalloc(size, GFP_ATOMIC);
+ if (!ieeemgmtbuf) {
+ ath6kl_err("%s: ieee mgmt buf alloc error\n", __func__);
+ return;
+ }
+
+ /*
+ * TODO: Update target to include 802.11 mac header while sending
+ * bss info. Target removes 802.11 mac header while sending the bss
+ * info to host, cfg80211 needs it, for time being just filling the
+ * da, sa and bssid fields alone.
+ */
+ mgmt = (struct ieee80211_mgmt *)ieeemgmtbuf;
+ memset(mgmt->da, 0xff, ETH_ALEN); /*broadcast addr */
+ memcpy(mgmt->sa, ni->ni_macaddr, ETH_ALEN);
+ memcpy(mgmt->bssid, ni->ni_macaddr, ETH_ALEN);
+ memcpy(ieeemgmtbuf + offsetof(struct ieee80211_mgmt, u),
+ ni->ni_buf, ni->ni_framelen);
+
+ freq = cie->ie_chan;
+ channel = ieee80211_get_channel(wiphy, freq);
+ signal = ni->ni_snr * 100;
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: bssid %pM ch %d freq %d size %d\n", __func__,
+ mgmt->bssid, channel->hw_value, freq, size);
+ cfg80211_inform_bss_frame(wiphy, channel, mgmt,
+ size, signal, GFP_KERNEL);
+
+ kfree(ieeemgmtbuf);
+}
+
+static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
+ struct cfg80211_scan_request *request)
+{
+ struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
+ int ret = 0;
+ u32 force_fg_scan = 0;
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (!ar->usr_bss_filter) {
+ if (wmi_bssfilter_cmd(ar->wmi,
+ (test_bit(CONNECTED, &ar->flag) ?
+ ALL_BUT_BSS_FILTER :
+ ALL_BSS_FILTER), 0) != 0) {
+ ath6kl_err("%s: couldn't set bss filtering\n",
+ __func__);
+ return -EIO;
+ }
+ }
+
+ if (request->n_ssids && request->ssids[0].ssid_len) {
+ u8 i;
+
+ if (request->n_ssids > (MAX_PROBED_SSID_INDEX - 1))
+ request->n_ssids = MAX_PROBED_SSID_INDEX - 1;
+
+ for (i = 0; i < request->n_ssids; i++)
+ wmi_probedssid_cmd(ar->wmi, i + 1, SPECIFIC_SSID_FLAG,
+ request->ssids[i].ssid_len,
+ request->ssids[i].ssid);
+ }
+
+ if (test_bit(CONNECTED, &ar->flag))
+ force_fg_scan = 1;
+
+ if (wmi_startscan_cmd(ar->wmi, WMI_LONG_SCAN, force_fg_scan, false,
+ 0, 0, 0, NULL) != 0) {
+ ath6kl_err("%s: wmi_startscan_cmd failed\n", __func__);
+ ret = -EIO;
+ }
+
+ ar->scan_req = request;
+
+ return ret;
+}
+
+void ath6kl_cfg80211_scan_complete_event(struct ath6kl *ar, int status)
+{
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status %d\n", __func__, status);
+
+ if (ar->scan_req) {
+ /* Translate data to cfg80211 mgmt format */
+ wmi_iterate_nodes(ar->wmi, ath6kl_cfg80211_scan_node,
+ ar->wdev->wiphy);
+
+ cfg80211_scan_done(ar->scan_req, ((status & -ECANCELED)
+ || (status & -EBUSY)) ? true :
+ false);
+
+ if (ar->scan_req->n_ssids && ar->scan_req->ssids[0].ssid_len) {
+ u8 i;
+
+ for (i = 0; i < ar->scan_req->n_ssids; i++) {
+ wmi_probedssid_cmd(ar->wmi, i + 1,
+ DISABLE_SSID_FLAG, 0, NULL);
+ }
+ }
+ ar->scan_req = NULL;
+ }
+}
+
+static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
+ u8 key_index, bool pairwise,
+ const u8 *mac_addr,
+ struct key_params *params)
+{
+ struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
+ struct ath6kl_key *key = NULL;
+ u8 key_usage;
+ u8 key_type;
+ int status = 0;
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: key index %d out of bounds\n", __func__,
+ key_index);
+ return -ENOENT;
+ }
+
+ key = &ar->keys[key_index];
+ memset(key, 0, sizeof(struct ath6kl_key));
+
+ if (!mac_addr || is_broadcast_ether_addr(mac_addr))
+ key_usage = GROUP_USAGE;
+ else
+ key_usage = PAIRWISE_USAGE;
+
+ if (params) {
+ if (params->key_len > WLAN_MAX_KEY_LEN ||
+ params->seq_len > IW_ENCODE_SEQ_MAX_SIZE)
+ return -EINVAL;
+
+ key->key_len = params->key_len;
+ memcpy(key->key, params->key, key->key_len);
+ key->seq_len = params->seq_len;
+ memcpy(key->seq, params->seq, key->seq_len);
+ key->cipher = params->cipher;
+ }
+
+ switch (key->cipher) {
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ key_type = WEP_CRYPT;
+ break;
+
+ case WLAN_CIPHER_SUITE_TKIP:
+ key_type = TKIP_CRYPT;
+ break;
+
+ case WLAN_CIPHER_SUITE_CCMP:
+ key_type = AES_CRYPT;
+ break;
+
+ default:
+ return -ENOTSUPP;
+ }
+
+ if (((ar->auth_mode == WPA_PSK_AUTH)
+ || (ar->auth_mode == WPA2_PSK_AUTH))
+ && (key_usage & GROUP_USAGE))
+ del_timer(&ar->disconnect_timer);
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: index %d, key_len %d, key_type 0x%x,"
+ " key_usage 0x%x, seq_len %d\n",
+ __func__, key_index, key->key_len, key_type,
+ key_usage, key->seq_len);
+
+ ar->def_txkey_index = key_index;
+ status = wmi_addkey_cmd(ar->wmi, ar->def_txkey_index,
+ key_type, key_usage, key->key_len,
+ key->seq, key->key, KEY_OP_INIT_VAL,
+ (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
+
+ if (status)
+ return -EIO;
+
+ return 0;
+}
+
+static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
+ u8 key_index, bool pairwise,
+ const u8 *mac_addr)
+{
+ struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: key index %d out of bounds\n", __func__,
+ key_index);
+ return -ENOENT;
+ }
+
+ if (!ar->keys[key_index].key_len) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: index %d is empty\n", __func__, key_index);
+ return 0;
+ }
+
+ ar->keys[key_index].key_len = 0;
+
+ return wmi_deletekey_cmd(ar->wmi, key_index);
+}
+
+static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
+ u8 key_index, bool pairwise,
+ const u8 *mac_addr, void *cookie,
+ void (*callback) (void *cookie,
+ struct key_params *))
+{
+ struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
+ struct ath6kl_key *key = NULL;
+ struct key_params params;
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: key index %d out of bounds\n", __func__,
+ key_index);
+ return -ENOENT;
+ }
+
+ key = &ar->keys[key_index];
+ memset(&params, 0, sizeof(params));
+ params.cipher = key->cipher;
+ params.key_len = key->key_len;
+ params.seq_len = key->seq_len;
+ params.seq = key->seq;
+ params.key = key->key;
+
+ callback(cookie, &params);
+
+ return key->key_len ? 0 : -ENOENT;
+}
+
+static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
+ struct net_device *ndev,
+ u8 key_index, bool unicast,
+ bool multicast)
+{
+ struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
+ struct ath6kl_key *key = NULL;
+ int status = 0;
+ u8 key_usage;
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: key index %d out of bounds\n",
+ __func__, key_index);
+ return -ENOENT;
+ }
+
+ if (!ar->keys[key_index].key_len) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
+ __func__, key_index);
+ return -EINVAL;
+ }
+
+ ar->def_txkey_index = key_index;
+ key = &ar->keys[ar->def_txkey_index];
+ key_usage = GROUP_USAGE;
+ if (ar->prwise_crypto == WEP_CRYPT)
+ key_usage |= TX_USAGE;
+
+ status = wmi_addkey_cmd(ar->wmi, ar->def_txkey_index,
+ ar->prwise_crypto, key_usage,
+ key->key_len, key->seq, key->key,
+ KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
+ if (status)
+ return -EIO;
+
+ return 0;
+}
+
+static int ath6kl_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
+ struct net_device *ndev,
+ u8 key_index)
+{
+ struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: not supported\n", __func__);
+ return -ENOTSUPP;
+}
+
+void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl *ar, u8 keyid,
+ bool ismcast)
+{
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
+
+ cfg80211_michael_mic_failure(ar->net_dev, ar->bssid,
+ (ismcast ? NL80211_KEYTYPE_GROUP :
+ NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
+ GFP_KERNEL);
+}
+
+static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+{
+ struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
+ changed);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
+ if (wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold) != 0) {
+ ath6kl_err("%s: wmi_set_rts_cmd failed\n", __func__);
+ return -EIO;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * The type nl80211_tx_power_setting replaces the following
+ * data type from 2.6.36 onwards
+*/
+static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
+ enum nl80211_tx_power_setting type,
+ int dbm)
+{
+ struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
+ u8 ath6kl_dbm;
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
+ type, dbm);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ switch (type) {
+ case NL80211_TX_POWER_AUTOMATIC:
+ return 0;
+ case NL80211_TX_POWER_LIMITED:
+ ar->tx_pwr = ath6kl_dbm = dbm;
+ break;
+ default:
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
+ __func__, type);
+ return -EOPNOTSUPP;
+ }
+
+ wmi_set_tx_pwr_cmd(ar->wmi, ath6kl_dbm);
+
+ return 0;
+}
+
+static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm)
+{
+ struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (test_bit(CONNECTED, &ar->flag)) {
+ ar->tx_pwr = 0;
+
+ if (wmi_get_tx_pwr_cmd(ar->wmi) != 0) {
+ ath6kl_err("%s: wmi_get_tx_pwr_cmd failed\n", __func__);
+ return -EIO;
+ }
+
+ wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0,
+ 5 * HZ);
+
+ if (signal_pending(current)) {
+ ath6kl_err("%s: target did not respond\n", __func__);
+ return -EINTR;
+ }
+ }
+
+ *dbm = ar->tx_pwr;
+ return 0;
+}
+
+static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
+ struct net_device *dev,
+ bool pmgmt, int timeout)
+{
+ struct ath6kl *ar = ath6kl_priv(dev);
+ struct wmi_power_mode_cmd mode;
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
+ __func__, pmgmt, timeout);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (pmgmt) {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
+ mode.pwr_mode = REC_POWER;
+ } else {
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
+ mode.pwr_mode = MAX_PERF_POWER;
+ }
+
+ if (wmi_powermode_cmd(ar->wmi, mode.pwr_mode) != 0) {
+ ath6kl_err("%s: wmi_powermode_cmd failed\n", __func__);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
+ struct net_device *ndev,
+ enum nl80211_iftype type, u32 *flags,
+ struct vif_params *params)
+{
+ struct ath6kl *ar = ath6kl_priv(ndev);
+ struct wireless_dev *wdev = ar->wdev;
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ switch (type) {
+ case NL80211_IFTYPE_STATION:
+ ar->next_mode = INFRA_NETWORK;
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ ar->next_mode = ADHOC_NETWORK;
+ break;
+ default:
+ ath6kl_err("%s: invalid type %u\n", __func__, type);
+ return -EOPNOTSUPP;
+ }
+
+ wdev->iftype = type;
+
+ return 0;
+}
+
+static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
+ struct net_device *dev,
+ struct cfg80211_ibss_params *ibss_param)
+{
+ struct ath6kl *ar = ath6kl_priv(dev);
+ int status;
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ if (!ibss_param->ssid_len
+ || IEEE80211_MAX_SSID_LEN < ibss_param->ssid_len) {
+ ath6kl_err("%s: ssid invalid\n", __func__);
+ return -EINVAL;
+ }
+
+ ar->ssid_len = ibss_param->ssid_len;
+ memcpy(ar->ssid, ibss_param->ssid, ar->ssid_len);
+
+ if (ibss_param->channel)
+ ar->ch_hint = ibss_param->channel->center_freq;
+
+ if (ibss_param->channel_fixed) {
+ /*
+ * TODO: channel_fixed: The channel should be fixed, do not
+ * search for IBSSs to join on other channels. Target
+ * firmware does not support this feature, needs to be
+ * updated.
+ */
+ }
+
+ memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
+ if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
+ memcpy(ar->req_bssid, ibss_param->bssid, sizeof(ar->req_bssid));
+
+ ath6kl_set_wpa_version(ar, 0);
+ ath6kl_set_auth_type(ar, NL80211_AUTHTYPE_OPEN_SYSTEM);
+
+ if (ibss_param->privacy) {
+ ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, true);
+ ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, false);
+ } else {
+ ath6kl_set_cipher(ar, IW_AUTH_CIPHER_NONE, true);
+ ath6kl_set_cipher(ar, IW_AUTH_CIPHER_NONE, false);
+ }
+
+ ar->nw_type = ar->next_mode;
+
+ ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
+ "%s: connect called with authmode %d dot11 auth %d"
+ " PW crypto %d PW crypto len %d GRP crypto %d"
+ " GRP crypto len %d channel hint %u\n", __func__,
+ ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto,
+ ar->prwise_crypto_len, ar->grp_crypto,
+ ar->grp_crpto_len, ar->ch_hint);
+
+ status = wmi_connect_cmd(ar->wmi, ar->nw_type,
+ ar->dot11_auth_mode, ar->auth_mode,
+ ar->prwise_crypto, ar->prwise_crypto_len,
+ ar->grp_crypto, ar->grp_crpto_len,
+ ar->ssid_len, ar->ssid,
+ ar->req_bssid, ar->ch_hint,
+ ar->connect_ctrl_flags);
+ set_bit(CONNECT_PEND, &ar->flag);
+
+ return 0;
+}
+
+static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
+ struct net_device *dev)
+{
+ struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev);
+
+ if (!test_bit(WMI_READY, &ar->flag)) {
+ ath6kl_err("%s: wmi is not ready\n", __func__);
+ return -EIO;
+ }
+
+ if (ar->wlan_state == WLAN_DISABLED) {
+ ath6kl_err("%s: wlan disabled\n", __func__);
+ return -EIO;
+ }
+
+ ath6kl_disconnect(ar);
+ memset(ar->ssid, 0, sizeof(ar->ssid));
+ ar->ssid_len = 0;
+
+ return 0;
+}
+
+static const u32 cipher_suites[] = {
+ WLAN_CIPHER_SUITE_WEP40,
+ WLAN_CIPHER_SUITE_WEP104,
+ WLAN_CIPHER_SUITE_TKIP,
+ WLAN_CIPHER_SUITE_CCMP,
+};
+
+static bool is_rate_legacy(s32 rate)
+{
+ static const s32 legacy[] = { 1000, 2000, 5500, 11000,
+ 6000, 9000, 12000, 18000, 24000,
+ 36000, 48000, 54000
+ };
+ u8 i;
+
+ for (i = 0; i < ARRAY_SIZE(legacy); i++)
+ if (rate == legacy[i])
+ return true;
+
+ return false;
+}
+
+static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
+{
+ static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
+ 52000, 58500, 65000, 72200
+ };
+ u8 i;
+
+ for (i = 0; i < ARRAY_SIZE(ht20); i++) {
+ if (rate == ht20[i]) {
+ if (i == ARRAY_SIZE(ht20) - 1)
+ /* last rate uses sgi */
+ *sgi = true;
+ else
+ *sgi = false;
+
+ *mcs = i;
+ return true;
+ }
+ }
+ return false;
+}
+
+static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
+{
+ static const s32 ht40[] = { 13500, 27000, 40500, 54000,
+ 81000, 108000, 121500, 135000,
+ 150000
+ };
+ u8 i;
+
+ for (i = 0; i < ARRAY_SIZE(ht40); i++) {
+ if (rate == ht40[i]) {
+ if (i == ARRAY_SIZE(ht40) - 1)
+ /* last rate uses sgi */
+ *sgi = true;
+ else
+ *sgi = false;
+
+ *mcs = i;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac, struct station_info *sinfo)
+{
+ struct ath6kl *ar = ath6kl_priv(dev);
+ long left;
+ bool sgi;
+ s32 rate;
+ int ret;
+ u8 mcs;
+
+ if (memcmp(mac, ar->bssid, ETH_ALEN) != 0)
+ return -ENOENT;
+
+ if (down_interruptible(&ar->sem))
+ return -EBUSY;
+
+ set_bit(STATS_UPDATE_PEND, &ar->flag);
+
+ ret = wmi_get_stats_cmd(ar->wmi);
+
+ if (ret != 0) {
+ up(&ar->sem);
+ return -EIO;
+ }
+
+ left = wait_event_interruptible_timeout(ar->event_wq,
+ !test_bit(STATS_UPDATE_PEND,
+ &ar->flag),
+ WMI_TIMEOUT);
+
+ up(&ar->sem);
+
+ if (left == 0)
+ return -ETIMEDOUT;
+ else if (left < 0)
+ return left;
+
+ if (ar->target_stats.rx_byte) {
+ sinfo->rx_bytes = ar->target_stats.rx_byte;
+ sinfo->filled |= STATION_INFO_RX_BYTES;
+ sinfo->rx_packets = ar->target_stats.rx_pkt;
+ sinfo->filled |= STATION_INFO_RX_PACKETS;
+ }
+
+ if (ar->target_stats.tx_byte) {
+ sinfo->tx_bytes = ar->target_stats.tx_byte;
+ sinfo->filled |= STATION_INFO_TX_BYTES;
+ sinfo->tx_packets = ar->target_stats.tx_pkt;
+ sinfo->filled |= STATION_INFO_TX_PACKETS;
+ }
+
+ sinfo->signal = ar->target_stats.cs_rssi;
+ sinfo->filled |= STATION_INFO_SIGNAL;
+
+ rate = ar->target_stats.tx_ucast_rate;
+
+ if (is_rate_legacy(rate)) {
+ sinfo->txrate.legacy = rate / 100;
+ } else if (is_rate_ht20(rate, &mcs, &sgi)) {
+ if (sgi) {
+ sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
+ sinfo->txrate.mcs = mcs - 1;
+ } else {
+ sinfo->txrate.mcs = mcs;
+ }
+
+ sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
+ } else if (is_rate_ht40(rate, &mcs, &sgi)) {
+ if (sgi) {
+ sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
+ sinfo->txrate.mcs = mcs - 1;
+ } else {
+ sinfo->txrate.mcs = mcs;
+ }
+
+ sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
+ sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
+ } else {
+ ath6kl_warn("%s: invalid rate: %d", __func__, rate);
+ return 0;
+ }
+
+ sinfo->filled |= STATION_INFO_TX_BITRATE;
+
+ return 0;
+}
+
+static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_pmksa *pmksa)
+{
+ struct ath6kl *ar = ath6kl_priv(netdev);
+ return wmi_setpmkid_cmd(ar->wmi, pmksa->bssid, pmksa->pmkid, true);
+}
+
+static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_pmksa *pmksa)
+{
+ struct ath6kl *ar = ath6kl_priv(netdev);
+ return wmi_setpmkid_cmd(ar->wmi, pmksa->bssid, pmksa->pmkid, false);
+}
+
+static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
+{
+ struct ath6kl *ar = ath6kl_priv(netdev);
+ if (test_bit(CONNECTED, &ar->flag))
+ return wmi_setpmkid_cmd(ar->wmi, ar->bssid, NULL, false);
+ return 0;
+}
+
+static struct cfg80211_ops ath6kl_cfg80211_ops = {
+ .change_virtual_intf = ath6kl_cfg80211_change_iface,
+ .scan = ath6kl_cfg80211_scan,
+ .connect = ath6kl_cfg80211_connect,
+ .disconnect = ath6kl_cfg80211_disconnect,
+ .add_key = ath6kl_cfg80211_add_key,
+ .get_key = ath6kl_cfg80211_get_key,
+ .del_key = ath6kl_cfg80211_del_key,
+ .set_default_key = ath6kl_cfg80211_set_default_key,
+ .set_default_mgmt_key = ath6kl_cfg80211_set_default_mgmt_key,
+ .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
+ .set_tx_power = ath6kl_cfg80211_set_txpower,
+ .get_tx_power = ath6kl_cfg80211_get_txpower,
+ .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
+ .join_ibss = ath6kl_cfg80211_join_ibss,
+ .leave_ibss = ath6kl_cfg80211_leave_ibss,
+ .get_station = ath6kl_get_station,
+ .set_pmksa = ath6kl_set_pmksa,
+ .del_pmksa = ath6kl_del_pmksa,
+ .flush_pmksa = ath6kl_flush_pmksa,
+};
+
+struct wireless_dev *ath6kl_cfg80211_init(struct device *dev)
+{
+ int ret = 0;
+ struct wireless_dev *wdev;
+
+ wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
+ if (!wdev) {
+ ath6kl_err("%s: couldn't allocate wireless device\n", __func__);
+ return NULL;
+ }
+
+ /* create a new wiphy for use with cfg80211 */
+ wdev->wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
+ if (!wdev->wiphy) {
+ ath6kl_err("%s: couldn't allocate wiphy device\n", __func__);
+ kfree(wdev);
+ return NULL;
+ }
+
+ /* set device pointer for wiphy */
+ set_wiphy_dev(wdev->wiphy, dev);
+
+ wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_ADHOC);
+ /* max num of ssids that can be probed during scanning */
+ wdev->wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX;
+ wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz;
+ wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz;
+ wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
+
+ wdev->wiphy->cipher_suites = cipher_suites;
+ wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+
+ ret = wiphy_register(wdev->wiphy);
+ if (ret < 0) {
+ ath6kl_err("%s: couldn't register wiphy device\n", __func__);
+ wiphy_free(wdev->wiphy);
+ kfree(wdev);
+ return NULL;
+ }
+
+ return wdev;
+}
+
+void ath6kl_cfg80211_deinit(struct ath6kl *ar)
+{
+ struct wireless_dev *wdev = ar->wdev;
+
+ if (ar->scan_req) {
+ cfg80211_scan_done(ar->scan_req, true);
+ ar->scan_req = NULL;
+ }
+
+ if (!wdev)
+ return;
+
+ wiphy_unregister(wdev->wiphy);
+ wiphy_free(wdev->wiphy);
+ kfree(wdev);
+}

2011-07-13 01:33:09

by Kalle Valo

[permalink] [raw]

Subject: [PATCH 01/24] ath6kl: add bmi.c

Signed-off-by: Kalle Valo <[email protected]>
---
drivers/net/wireless/ath/ath6kl/bmi.c | 692 +++++++++++++++++++++++++++++++++
1 files changed, 692 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/wireless/ath/ath6kl/bmi.c

diff --git a/drivers/net/wireless/ath/ath6kl/bmi.c b/drivers/net/wireless/ath/ath6kl/bmi.c
new file mode 100644
index 0000000..95fd3c7
--- /dev/null
+++ b/drivers/net/wireless/ath/ath6kl/bmi.c
@@ -0,0 +1,692 @@
+/*
+ * Copyright (c) 2004-2011 Atheros Communications Inc.
+ *
+ * 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 "core.h"
+#include "hif-ops.h"
+#include "target.h"
+#include "debug.h"
+
+static int ath6kl_get_bmi_cmd_credits(struct ath6kl *ar)
+{
+ u32 addr;
+ unsigned long timeout;
+ int ret;
+
+ ar->bmi.cmd_credits = 0;
+
+ /* Read the counter register to get the command credits */
+ addr = COUNT_DEC_ADDRESS + (HTC_MAILBOX_NUM_MAX + ENDPOINT1) * 4;
+
+ timeout = jiffies + msecs_to_jiffies(BMI_COMMUNICATION_TIMEOUT);
+ while (time_before(jiffies, timeout) && !ar->bmi.cmd_credits) {
+
+ /*
+ * Hit the credit counter with a 4-byte access, the first byte
+ * read will hit the counter and cause a decrement, while the
+ * remaining 3 bytes has no effect. The rationale behind this
+ * is to make all HIF accesses 4-byte aligned.
+ */
+ ret = hif_read_write_sync(ar, addr,
+ (u8 *)&ar->bmi.cmd_credits, 4,
+ HIF_RD_SYNC_BYTE_INC);
+ if (ret) {
+ ath6kl_err("Unable to decrement the command "
+ "credit count register: %d\n", ret);
+ return ret;
+ }
+
+ /* The counter is only 8 bits.
+ * Ignore anything in the upper 3 bytes
+ */
+ ar->bmi.cmd_credits &= 0xFF;
+ }
+
+ if (!ar->bmi.cmd_credits) {
+ ath6kl_err("%s bmi communication timeout\n", __func__);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int ath6kl_bmi_get_rx_lkahd(struct ath6kl *ar, bool need_timeout)
+{
+ unsigned long timeout;
+ u32 rx_word = 0;
+ int ret = 0;
+
+ timeout = jiffies + msecs_to_jiffies(BMI_COMMUNICATION_TIMEOUT);
+ while ((!need_timeout || time_before(jiffies, timeout)) && !rx_word) {
+ ret = hif_read_write_sync(ar, RX_LOOKAHEAD_VALID_ADDRESS,
+ (u8 *)&rx_word, sizeof(rx_word),
+ HIF_RD_SYNC_BYTE_INC);
+ if (ret) {
+ ath6kl_err("unable to read RX_LOOKAHEAD_VALID\n");
+ return ret;
+ }
+
+ /* all we really want is one bit */
+ rx_word &= (1 << ENDPOINT1);
+ }
+
+ if (!rx_word) {
+ ath6kl_err("bmi_recv_buf FIFO empty\n");
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static int ath6kl_bmi_send_buf(struct ath6kl *ar, u8 *buf, u32 len)
+{
+ int ret;
+ u32 addr;
+
+ ret = ath6kl_get_bmi_cmd_credits(ar);
+ if (ret)
+ return ret;
+
+ addr = ar->mbox_info.htc_addr;
+
+ ret = hif_read_write_sync(ar, addr, buf, len,
+ HIF_WR_SYNC_BYTE_INC);
+ if (ret)
+ ath6kl_err("unable to send the bmi data to the device\n");
+
+ return ret;
+}
+
+static int ath6kl_bmi_recv_buf(struct ath6kl *ar,
+ u8 *buf, u32 len, bool want_timeout)
+{
+ int ret;
+ u32 addr;
+
+ /*
+ * During normal bootup, small reads may be required.
+ * Rather than issue an HIF Read and then wait as the Target
+ * adds successive bytes to the FIFO, we wait here until
+ * we know that response data is available.
+ *
+ * This allows us to cleanly timeout on an unexpected
+ * Target failure rather than risk problems at the HIF level.
+ * In particular, this avoids SDIO timeouts and possibly garbage
+ * data on some host controllers. And on an interconnect
+ * such as Compact Flash (as well as some SDIO masters) which
+ * does not provide any indication on data timeout, it avoids
+ * a potential hang or garbage response.
+ *
+ * Synchronization is more difficult for reads larger than the
+ * size of the MBOX FIFO (128B), because the Target is unable
+ * to push the 129th byte of data until AFTER the Host posts an
+ * HIF Read and removes some FIFO data. So for large reads the
+ * Host proceeds to post an HIF Read BEFORE all the data is
+ * actually available to read. Fortunately, large BMI reads do
+ * not occur in practice -- they're supported for debug/development.
+ *
+ * So Host/Target BMI synchronization is divided into these cases:
+ * CASE 1: length < 4
+ * Should not happen
+ *
+ * CASE 2: 4 <= length <= 128
+ * Wait for first 4 bytes to be in FIFO
+ * If CONSERVATIVE_BMI_READ is enabled, also wait for
+ * a BMI command credit, which indicates that the ENTIRE
+ * response is available in the the FIFO
+ *
+ * CASE 3: length > 128
+ * Wait for the first 4 bytes to be in FIFO
+ *
+ * For most uses, a small timeout should be sufficient and we will
+ * usually see a response quickly; but there may be some unusual
+ * (debug) cases of BMI_EXECUTE where we want an larger timeout.
+ * For now, we use an unbounded busy loop while waiting for
+ * BMI_EXECUTE.
+ *
+ * If BMI_EXECUTE ever needs to support longer-latency execution,
+ * especially in production, this code needs to be enhanced to sleep
+ * and yield. Also note that BMI_COMMUNICATION_TIMEOUT is currently
+ * a function of Host processor speed.
+ */
+ if (len >= 4) { /* NB: Currently, always true */
+ ret = ath6kl_bmi_get_rx_lkahd(ar, want_timeout);
+ if (ret)
+ return ret;
+ }
+
+ addr = ar->mbox_info.htc_addr;
+ ret = hif_read_write_sync(ar, addr, buf, len,
+ HIF_RD_SYNC_BYTE_INC);
+ if (ret) {
+ ath6kl_err("Unable to read the bmi data "
+ "from the device: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+int ath6kl_bmi_done(struct ath6kl *ar)
+{
+ int ret;
+ u32 cid = BMI_DONE;
+
+ if (ar->bmi.done_sent) {
+ ath6kl_dbg(ATH6KL_DBG_BMI, "bmi done skipped\n");
+ return 0;
+ }
+
+ ar->bmi.done_sent = true;
+
+ ret = ath6kl_bmi_send_buf(ar, (u8 *)&cid, sizeof(cid));
+ if (ret) {
+ ath6kl_err("Unable to send bmi done: %d\n", ret);
+ return ret;
+ }
+
+ ath6kl_bmi_cleanup(ar);
+
+ return 0;
+}
+
+int ath6kl_bmi_get_target_info(struct ath6kl *ar,
+ struct ath6kl_bmi_target_info *targ_info)
+{
+ int ret;
+ u32 cid = BMI_GET_TARGET_INFO;
+
+ if (ar->bmi.done_sent) {
+ ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+ return -EACCES;
+ }
+
+ ret = ath6kl_bmi_send_buf(ar, (u8 *)&cid, sizeof(cid));
+ if (ret) {
+ ath6kl_err("Unable to send get target info: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath6kl_bmi_recv_buf(ar, (u8 *)&targ_info->version,
+ sizeof(targ_info->version), true);
+ if (ret) {
+ ath6kl_err("Unable to recv target info: %d\n", ret);
+ return ret;
+ }
+
+ if (le32_to_cpu(targ_info->version) == TARGET_VERSION_SENTINAL) {
+ /* Determine how many bytes are in the Target's targ_info */
+ ret = ath6kl_bmi_recv_buf(ar,
+ (u8 *)&targ_info->byte_count,
+ sizeof(targ_info->byte_count),
+ true);
+ if (ret) {
+ ath6kl_err("unable to read target info "
+ "byte count: %d\n", ret);
+ return ret;
+ }
+
+ /*
+ * The target's targ_info doesn't match the host's targ_info.
+ * We need to do some backwards compatibility to make this work.
+ */
+ if (le32_to_cpu(targ_info->byte_count) != sizeof(*targ_info)) {
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ /* Read the remainder of the targ_info */
+ ret = ath6kl_bmi_recv_buf(ar,
+ ((u8 *)targ_info) +
+ sizeof(targ_info->byte_count),
+ sizeof(*targ_info) -
+ sizeof(targ_info->byte_count),
+ true);
+
+ if (ret) {
+ ath6kl_err("Unable to read target info "
+ "(%d bytes): %d\n",
+ targ_info->byte_count, ret);
+ return ret;
+ }
+ }
+
+ ath6kl_dbg(ATH6KL_DBG_BMI, "target info (ver: 0x%x type: 0x%x)\n",
+ targ_info->version, targ_info->type);
+
+ return 0;
+}
+
+int ath6kl_bmi_read(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
+{
+ u32 cid = BMI_READ_MEMORY;
+ int ret;
+ u32 offset;
+ u32 len_remain, rx_len;
+ u16 size;
+
+ if (ar->bmi.done_sent) {
+ ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+ return -EACCES;
+ }
+
+ size = BMI_DATASZ_MAX + sizeof(cid) + sizeof(addr) + sizeof(len);
+ if (size > MAX_BMI_CMDBUF_SZ) {
+ WARN_ON(1);
+ return -EINVAL;
+ }
+ memset(ar->bmi.cmd_buf, 0, size);
+
+ ath6kl_dbg(ATH6KL_DBG_BMI,
+ "bmi read memory: device: addr: 0x%x, len: %d\n",
+ addr, len);
+
+ len_remain = len;
+
+ while (len_remain) {
+ rx_len = (len_remain < BMI_DATASZ_MAX) ?
+ len_remain : BMI_DATASZ_MAX;
+ offset = 0;
+ memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+ offset += sizeof(cid);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+ offset += sizeof(addr);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &rx_len, sizeof(rx_len));
+ offset += sizeof(len);
+
+ ret = ath6kl_bmi_send_buf(ar, ar->bmi.cmd_buf, offset);
+ if (ret) {
+ ath6kl_err("Unable to write to the device: %d\n",
+ ret);
+ return ret;
+ }
+ ret = ath6kl_bmi_recv_buf(ar, ar->bmi.cmd_buf, rx_len, true);
+ if (ret) {
+ ath6kl_err("Unable to read from the device: %d\n",
+ ret);
+ return ret;
+ }
+ memcpy(&buf[len - len_remain], ar->bmi.cmd_buf, rx_len);
+ len_remain -= rx_len; addr += rx_len;
+ }
+
+ return 0;
+}
+
+int ath6kl_bmi_write(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
+{
+ u32 cid = BMI_WRITE_MEMORY;
+ int ret;
+ u32 offset;
+ u32 len_remain, tx_len;
+ const u32 header = sizeof(cid) + sizeof(addr) + sizeof(len);
+ u8 aligned_buf[BMI_DATASZ_MAX];
+ u8 *src;
+
+ if (ar->bmi.done_sent) {
+ ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+ return -EACCES;
+ }
+
+ if ((BMI_DATASZ_MAX + header) > MAX_BMI_CMDBUF_SZ) {
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ memset(ar->bmi.cmd_buf, 0, BMI_DATASZ_MAX + header);
+
+ ath6kl_dbg(ATH6KL_DBG_BMI,
+ "bmi write memory: addr: 0x%x, len: %d\n", addr, len);
+
+ len_remain = len;
+ while (len_remain) {
+ src = &buf[len - len_remain];
+
+ if (len_remain < (BMI_DATASZ_MAX - header)) {
+ if (len_remain & 3) {
+ /* align it with 4 bytes */
+ len_remain = len_remain +
+ (4 - (len_remain & 3));
+ memcpy(aligned_buf, src, len_remain);
+ src = aligned_buf;
+ }
+ tx_len = len_remain;
+ } else {
+ tx_len = (BMI_DATASZ_MAX - header);
+ }
+
+ offset = 0;
+ memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+ offset += sizeof(cid);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+ offset += sizeof(addr);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &tx_len, sizeof(tx_len));
+ offset += sizeof(tx_len);
+ memcpy(&(ar->bmi.cmd_buf[offset]), src, tx_len);
+ offset += tx_len;
+
+ ret = ath6kl_bmi_send_buf(ar, ar->bmi.cmd_buf, offset);
+ if (ret) {
+ ath6kl_err("Unable to write to the device: %d\n",
+ ret);
+ return ret;
+ }
+ len_remain -= tx_len; addr += tx_len;
+ }
+
+ return 0;
+}
+
+int ath6kl_bmi_execute(struct ath6kl *ar, u32 addr, u32 *param)
+{
+ u32 cid = BMI_EXECUTE;
+ int ret;
+ u32 offset;
+ u16 size;
+
+ if (ar->bmi.done_sent) {
+ ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+ return -EACCES;
+ }
+
+ size = sizeof(cid) + sizeof(addr) + sizeof(param);
+ if (size > MAX_BMI_CMDBUF_SZ) {
+ WARN_ON(1);
+ return -EINVAL;
+ }
+ memset(ar->bmi.cmd_buf, 0, size);
+
+ ath6kl_dbg(ATH6KL_DBG_BMI, "bmi execute: addr: 0x%x, "
+ "param: %d)\n", addr, *param);
+
+ offset = 0;
+ memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+ offset += sizeof(cid);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+ offset += sizeof(addr);
+ memcpy(&(ar->bmi.cmd_buf[offset]), param, sizeof(*param));
+ offset += sizeof(*param);
+
+ ret = ath6kl_bmi_send_buf(ar, ar->bmi.cmd_buf, offset);
+ if (ret) {
+ ath6kl_err("Unable to write to the device: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath6kl_bmi_recv_buf(ar, ar->bmi.cmd_buf, sizeof(*param), false);
+ if (ret) {
+ ath6kl_err("Unable to read from the device: %d\n", ret);
+ return ret;
+ }
+
+ memcpy(param, ar->bmi.cmd_buf, sizeof(*param));
+
+ return 0;
+}
+
+int ath6kl_bmi_set_app_start(struct ath6kl *ar, u32 addr)
+{
+ u32 cid = BMI_SET_APP_START;
+ int ret;
+ u32 offset;
+ u16 size;
+
+ if (ar->bmi.done_sent) {
+ ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+ return -EACCES;
+ }
+
+ size = sizeof(cid) + sizeof(addr);
+ if (size > MAX_BMI_CMDBUF_SZ) {
+ WARN_ON(1);
+ return -EINVAL;
+ }
+ memset(ar->bmi.cmd_buf, 0, size);
+
+ ath6kl_dbg(ATH6KL_DBG_BMI, "bmi set app start: addr: 0x%x\n", addr);
+
+ offset = 0;
+ memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+ offset += sizeof(cid);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+ offset += sizeof(addr);
+
+ ret = ath6kl_bmi_send_buf(ar, ar->bmi.cmd_buf, offset);
+ if (ret) {
+ ath6kl_err("Unable to write to the device: %d\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+int ath6kl_bmi_reg_read(struct ath6kl *ar, u32 addr, u32 *param)
+{
+ u32 cid = BMI_READ_SOC_REGISTER;
+ int ret;
+ u32 offset;
+ u16 size;
+
+ if (ar->bmi.done_sent) {
+ ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+ return -EACCES;
+ }
+
+ size = sizeof(cid) + sizeof(addr);
+ if (size > MAX_BMI_CMDBUF_SZ) {
+ WARN_ON(1);
+ return -EINVAL;
+ }
+ memset(ar->bmi.cmd_buf, 0, size);
+
+ ath6kl_dbg(ATH6KL_DBG_BMI, "bmi read SOC reg: addr: 0x%x\n", addr);
+
+ offset = 0;
+ memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+ offset += sizeof(cid);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+ offset += sizeof(addr);
+
+ ret = ath6kl_bmi_send_buf(ar, ar->bmi.cmd_buf, offset);
+ if (ret) {
+ ath6kl_err("Unable to write to the device: %d\n", ret);
+ return ret;
+ }
+
+ ret = ath6kl_bmi_recv_buf(ar, ar->bmi.cmd_buf, sizeof(*param), true);
+ if (ret) {
+ ath6kl_err("Unable to read from the device: %d\n");
+ return ret;
+ }
+ memcpy(param, ar->bmi.cmd_buf, sizeof(*param));
+
+ return 0;
+}
+
+int ath6kl_bmi_reg_write(struct ath6kl *ar, u32 addr, u32 param)
+{
+ u32 cid = BMI_WRITE_SOC_REGISTER;
+ int ret;
+ u32 offset;
+ u16 size;
+
+ if (ar->bmi.done_sent) {
+ ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+ return -EACCES;
+ }
+
+ size = sizeof(cid) + sizeof(addr) + sizeof(param);
+ if (size > MAX_BMI_CMDBUF_SZ) {
+ WARN_ON(1);
+ return -EINVAL;
+ }
+ memset(ar->bmi.cmd_buf, 0, size);
+
+ ath6kl_dbg(ATH6KL_DBG_BMI,
+ "bmi write SOC reg: addr: 0x%x, param: %d\n",
+ addr, param);
+
+ offset = 0;
+ memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+ offset += sizeof(cid);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+ offset += sizeof(addr);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &param, sizeof(param));
+ offset += sizeof(param);
+
+ ret = ath6kl_bmi_send_buf(ar, ar->bmi.cmd_buf, offset);
+ if (ret) {
+ ath6kl_err("Unable to write to the device: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+int ath6kl_bmi_lz_data(struct ath6kl *ar, u8 *buf, u32 len)
+{
+ u32 cid = BMI_LZ_DATA;
+ int ret;
+ u32 offset;
+ u32 len_remain, tx_len;
+ const u32 header = sizeof(cid) + sizeof(len);
+ u16 size;
+
+ if (ar->bmi.done_sent) {
+ ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+ return -EACCES;
+ }
+
+ size = BMI_DATASZ_MAX + header;
+ if (size > MAX_BMI_CMDBUF_SZ) {
+ WARN_ON(1);
+ return -EINVAL;
+ }
+ memset(ar->bmi.cmd_buf, 0, size);
+
+ ath6kl_dbg(ATH6KL_DBG_BMI, "bmi send LZ data: len: %d)\n",
+ len);
+
+ len_remain = len;
+ while (len_remain) {
+ tx_len = (len_remain < (BMI_DATASZ_MAX - header)) ?
+ len_remain : (BMI_DATASZ_MAX - header);
+
+ offset = 0;
+ memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+ offset += sizeof(cid);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &tx_len, sizeof(tx_len));
+ offset += sizeof(tx_len);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &buf[len - len_remain],
+ tx_len);
+ offset += tx_len;
+
+ ret = ath6kl_bmi_send_buf(ar, ar->bmi.cmd_buf, offset);
+ if (ret) {
+ ath6kl_err("Unable to write to the device: %d\n",
+ ret);
+ return ret;
+ }
+
+ len_remain -= tx_len;
+ }
+
+ return 0;
+}
+
+int ath6kl_bmi_lz_stream_start(struct ath6kl *ar, u32 addr)
+{
+ u32 cid = BMI_LZ_STREAM_START;
+ int ret;
+ u32 offset;
+ u16 size;
+
+ if (ar->bmi.done_sent) {
+ ath6kl_err("bmi done sent already, cmd %d disallowed\n", cid);
+ return -EACCES;
+ }
+
+ size = sizeof(cid) + sizeof(addr);
+ if (size > MAX_BMI_CMDBUF_SZ) {
+ WARN_ON(1);
+ return -EINVAL;
+ }
+ memset(ar->bmi.cmd_buf, 0, size);
+
+ ath6kl_dbg(ATH6KL_DBG_BMI,
+ "bmi LZ stream start: addr: 0x%x)\n",
+ addr);
+
+ offset = 0;
+ memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
+ offset += sizeof(cid);
+ memcpy(&(ar->bmi.cmd_buf[offset]), &addr, sizeof(addr));
+ offset += sizeof(addr);
+
+ ret = ath6kl_bmi_send_buf(ar, ar->bmi.cmd_buf, offset);
+ if (ret) {
+ ath6kl_err("Unable to start LZ stream to the device: %d\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+int ath6kl_bmi_fast_download(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
+{
+ int ret;
+ u32 last_word = 0;
+ u32 last_word_offset = len & ~0x3;
+ u32 unaligned_bytes = len & 0x3;
+
+ ret = ath6kl_bmi_lz_stream_start(ar, addr);
+ if (ret)
+ return ret;
+
+ if (unaligned_bytes) {
+ /* copy the last word into a zero padded buffer */
+ memcpy(&last_word, &buf[last_word_offset], unaligned_bytes);
+ }
+
+ ret = ath6kl_bmi_lz_data(ar, buf, last_word_offset);
+ if (ret)
+ return ret;
+
+ if (unaligned_bytes)
+ ret = ath6kl_bmi_lz_data(ar, (u8 *)&last_word, 4);
+
+ if (!ret) {
+ /* Close compressed stream and open a new (fake) one.
+ * This serves mainly to flush Target caches. */
+ ret = ath6kl_bmi_lz_stream_start(ar, 0x00);
+ }
+ return ret;
+}
+
+int ath6kl_bmi_init(struct ath6kl *ar)
+{
+ ar->bmi.cmd_buf = kzalloc(MAX_BMI_CMDBUF_SZ, GFP_ATOMIC);
+
+ if (!ar->bmi.cmd_buf)
+ return -ENOMEM;
+
+ return 0;
+}
+
+void ath6kl_bmi_cleanup(struct ath6kl *ar)
+{
+ kfree(ar->bmi.cmd_buf);
+ ar->bmi.cmd_buf = NULL;
+}