*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2008 Intel Corporation. All rights reserved.
+ * Copyright(c) 2008 - 2009 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* in the file called LICENSE.GPL.
*
* Contact Information:
- * Tomas Winkler <tomas.winkler@intel.com>
+ * Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
-#include <net/mac80211.h>
+#include <linux/types.h>
#include <linux/etherdevice.h>
+#include <net/lib80211.h>
+#include <net/mac80211.h>
#include "iwl-eeprom.h"
#include "iwl-dev.h"
#define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3)
#define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2)
-/* For faster active scanning, scan will move to the next channel if fewer than
- * PLCP_QUIET_THRESH packets are heard on this channel within
- * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
- * time if it's a quiet channel (nothing responded to our probe, and there's
- * no other traffic).
- * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
-#define IWL_PLCP_QUIET_THRESH __constant_cpu_to_le16(1) /* packets */
-#define IWL_ACTIVE_QUIET_TIME __constant_cpu_to_le16(10) /* msec */
-
/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
* Must be set longer than active dwell time.
* For the most reliable scan, set > AP beacon interval (typically 100msec). */
#define IWL_PASSIVE_DWELL_BASE (100)
#define IWL_CHANNEL_TUNE_TIME 5
-#define IWL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1))))
-
-
-static int scan_tx_ant[3] = {
- RATE_MCS_ANT_A_MSK, RATE_MCS_ANT_B_MSK, RATE_MCS_ANT_C_MSK
-};
-
-
-
-static int iwl_is_empty_essid(const char *essid, int essid_len)
-{
- /* Single white space is for Linksys APs */
- if (essid_len == 1 && essid[0] == ' ')
- return 1;
-
- /* Otherwise, if the entire essid is 0, we assume it is hidden */
- while (essid_len) {
- essid_len--;
- if (essid[essid_len] != '\0')
- return 0;
- }
-
- return 1;
-}
-
-static const char *iwl_escape_essid(const char *essid, u8 essid_len)
-{
- static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
- const char *s = essid;
- char *d = escaped;
-
- if (iwl_is_empty_essid(essid, essid_len)) {
- memcpy(escaped, "<hidden>", sizeof("<hidden>"));
- return escaped;
- }
-
- essid_len = min(essid_len, (u8) IW_ESSID_MAX_SIZE);
- while (essid_len--) {
- if (*s == '\0') {
- *d++ = '\\';
- *d++ = '0';
- s++;
- } else
- *d++ = *s++;
- }
- *d = '\0';
- return escaped;
-}
-
/**
* iwl_scan_cancel - Cancel any currently executing HW scan
*
}
EXPORT_SYMBOL(iwl_setup_rx_scan_handlers);
-static inline u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
- enum ieee80211_band band,
- u8 n_probes)
+inline u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
+ enum ieee80211_band band,
+ u8 n_probes)
{
if (band == IEEE80211_BAND_5GHZ)
return IWL_ACTIVE_DWELL_TIME_52 +
return IWL_ACTIVE_DWELL_TIME_24 +
IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
}
+EXPORT_SYMBOL(iwl_get_active_dwell_time);
-static u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
- enum ieee80211_band band)
+u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
+ enum ieee80211_band band)
{
u16 passive = (band == IEEE80211_BAND_2GHZ) ?
IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
return passive;
}
+EXPORT_SYMBOL(iwl_get_passive_dwell_time);
static int iwl_get_channels_for_scan(struct iwl_priv *priv,
enum ieee80211_band band,
void iwl_init_scan_params(struct iwl_priv *priv)
{
+ u8 ant_idx = fls(priv->hw_params.valid_tx_ant) - 1;
if (!priv->scan_tx_ant[IEEE80211_BAND_5GHZ])
- priv->scan_tx_ant[IEEE80211_BAND_5GHZ] = RATE_MCS_ANT_INIT_IND;
+ priv->scan_tx_ant[IEEE80211_BAND_5GHZ] = ant_idx;
if (!priv->scan_tx_ant[IEEE80211_BAND_2GHZ])
- priv->scan_tx_ant[IEEE80211_BAND_2GHZ] = RATE_MCS_ANT_INIT_IND;
+ priv->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx;
}
int iwl_scan_initiate(struct iwl_priv *priv)
#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
-static void iwl_bg_scan_check(struct work_struct *data)
+void iwl_bg_scan_check(struct work_struct *data)
{
struct iwl_priv *priv =
container_of(data, struct iwl_priv, scan_check.work);
}
mutex_unlock(&priv->mutex);
}
+EXPORT_SYMBOL(iwl_bg_scan_check);
+
/**
* iwl_supported_rate_to_ie - fill in the supported rate in IE field
*
{
struct ieee80211_ht_cap *ht_cap;
- if (!sband || !sband->ht_info.ht_supported)
+ if (!sband || !sband->ht_cap.ht_supported)
return;
if (*left < sizeof(struct ieee80211_ht_cap))
*pos++ = sizeof(struct ieee80211_ht_cap);
ht_cap = (struct ieee80211_ht_cap *) pos;
- ht_cap->cap_info = cpu_to_le16(sband->ht_info.cap);
- memcpy(ht_cap->supp_mcs_set, sband->ht_info.supp_mcs_set, 16);
+ ht_cap->cap_info = cpu_to_le16(sband->ht_cap.cap);
+ memcpy(&ht_cap->mcs, &sband->ht_cap.mcs, 16);
ht_cap->ampdu_params_info =
- (sband->ht_info.ampdu_factor & IEEE80211_HT_CAP_AMPDU_FACTOR) |
- ((sband->ht_info.ampdu_density << 2) &
- IEEE80211_HT_CAP_AMPDU_DENSITY);
+ (sband->ht_cap.ampdu_factor & IEEE80211_HT_AMPDU_PARM_FACTOR) |
+ ((sband->ht_cap.ampdu_density << 2) &
+ IEEE80211_HT_AMPDU_PARM_DENSITY);
*left -= sizeof(struct ieee80211_ht_cap);
}
* iwl_fill_probe_req - fill in all required fields and IE for probe request
*/
-static u16 iwl_fill_probe_req(struct iwl_priv *priv,
- enum ieee80211_band band,
- struct ieee80211_mgmt *frame,
- int left)
+u16 iwl_fill_probe_req(struct iwl_priv *priv,
+ enum ieee80211_band band,
+ struct ieee80211_mgmt *frame,
+ int left)
{
int len = 0;
u8 *pos = NULL;
return (u16)len;
}
-
-static u32 iwl_scan_tx_ant(struct iwl_priv *priv, enum ieee80211_band band)
-{
- int i, ind;
-
- ind = priv->scan_tx_ant[band];
- for (i = 0; i < priv->hw_params.tx_chains_num; i++) {
- ind = (ind+1) >= priv->hw_params.tx_chains_num ? 0 : ind+1;
- if (priv->hw_params.valid_tx_ant & (1 << ind)) {
- priv->scan_tx_ant[band] = ind;
- break;
- }
- }
- IWL_DEBUG_SCAN("select TX ANT = %c\n", 'A' + ind);
- return scan_tx_ant[ind];
-}
-
+EXPORT_SYMBOL(iwl_fill_probe_req);
static void iwl_bg_request_scan(struct work_struct *data)
{
struct iwl_scan_cmd *scan;
struct ieee80211_conf *conf = NULL;
int ret = 0;
- u32 tx_ant;
+ u32 rate_flags = 0;
u16 cmd_len;
enum ieee80211_band band;
u8 n_probes = 2;
u8 rx_chain = priv->hw_params.valid_rx_ant;
+ u8 rate;
+ DECLARE_SSID_BUF(ssid);
conf = ieee80211_get_hw_conf(priv->hw);
mutex_lock(&priv->mutex);
if (!iwl_is_ready(priv)) {
- IWL_WARNING("request scan called when driver not ready.\n");
+ IWL_WARN(priv, "request scan called when driver not ready.\n");
goto done;
}
- /* Make sure the scan wasn't cancelled before this queued work
+ /* Make sure the scan wasn't canceled before this queued work
* was given the chance to run... */
if (!test_bit(STATUS_SCANNING, &priv->status))
goto done;
/* We should add the ability for user to lock to PASSIVE ONLY */
if (priv->one_direct_scan) {
IWL_DEBUG_SCAN("Start direct scan for '%s'\n",
- iwl_escape_essid(priv->direct_ssid,
- priv->direct_ssid_len));
+ print_ssid(ssid, priv->direct_ssid,
+ priv->direct_ssid_len));
scan->direct_scan[0].id = WLAN_EID_SSID;
scan->direct_scan[0].len = priv->direct_ssid_len;
memcpy(scan->direct_scan[0].ssid,
priv->direct_ssid, priv->direct_ssid_len);
n_probes++;
- } else if (!iwl_is_associated(priv) && priv->essid_len) {
- IWL_DEBUG_SCAN("Start direct scan for '%s' (not associated)\n",
- iwl_escape_essid(priv->essid, priv->essid_len));
- scan->direct_scan[0].id = WLAN_EID_SSID;
- scan->direct_scan[0].len = priv->essid_len;
- memcpy(scan->direct_scan[0].ssid, priv->essid, priv->essid_len);
- n_probes++;
} else {
IWL_DEBUG_SCAN("Start indirect scan.\n");
}
if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) {
band = IEEE80211_BAND_2GHZ;
scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
- tx_ant = iwl_scan_tx_ant(priv, band);
- if (priv->active_rxon.flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK)
- scan->tx_cmd.rate_n_flags =
- iwl_hw_set_rate_n_flags(IWL_RATE_6M_PLCP,
- tx_ant);
- else
- scan->tx_cmd.rate_n_flags =
- iwl_hw_set_rate_n_flags(IWL_RATE_1M_PLCP,
- tx_ant |
- RATE_MCS_CCK_MSK);
+ if (priv->active_rxon.flags & RXON_FLG_CHANNEL_MODE_PURE_40_MSK) {
+ rate = IWL_RATE_6M_PLCP;
+ } else {
+ rate = IWL_RATE_1M_PLCP;
+ rate_flags = RATE_MCS_CCK_MSK;
+ }
scan->good_CRC_th = 0;
} else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) {
band = IEEE80211_BAND_5GHZ;
- tx_ant = iwl_scan_tx_ant(priv, band);
- scan->tx_cmd.rate_n_flags =
- iwl_hw_set_rate_n_flags(IWL_RATE_6M_PLCP,
- tx_ant);
+ rate = IWL_RATE_6M_PLCP;
scan->good_CRC_th = IWL_GOOD_CRC_TH;
/* Force use of chains B and C (0x6) for scan Rx for 4965
if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965)
rx_chain = 0x6;
} else {
- IWL_WARNING("Invalid scan band count\n");
+ IWL_WARN(priv, "Invalid scan band count\n");
goto done;
}
+ priv->scan_tx_ant[band] =
+ iwl_toggle_tx_ant(priv, priv->scan_tx_ant[band]);
+ rate_flags |= iwl_ant_idx_to_flags(priv->scan_tx_ant[band]);
+ scan->tx_cmd.rate_n_flags = iwl_hw_set_rate_n_flags(rate, rate_flags);
+
/* MIMO is not used here, but value is required */
scan->rx_chain = RXON_RX_CHAIN_DRIVER_FORCE_MSK |
cpu_to_le16((0x7 << RXON_RX_CHAIN_VALID_POS) |
mutex_unlock(&priv->mutex);
}
-static void iwl_bg_abort_scan(struct work_struct *work)
+void iwl_bg_abort_scan(struct work_struct *work)
{
struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
mutex_unlock(&priv->mutex);
}
+EXPORT_SYMBOL(iwl_bg_abort_scan);
-static void iwl_bg_scan_completed(struct work_struct *work)
+void iwl_bg_scan_completed(struct work_struct *work)
{
struct iwl_priv *priv =
container_of(work, struct iwl_priv, scan_completed);
iwl_set_tx_power(priv, priv->tx_power_user_lmt, true);
mutex_unlock(&priv->mutex);
}
-
+EXPORT_SYMBOL(iwl_bg_scan_completed);
void iwl_setup_scan_deferred_work(struct iwl_priv *priv)
{
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff