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Diffstat (limited to 'include/net/ieee80211softmac.h')
-rw-r--r--include/net/ieee80211softmac.h60
1 files changed, 54 insertions, 6 deletions
diff --git a/include/net/ieee80211softmac.h b/include/net/ieee80211softmac.h
index 00ad810eb88..425b3a57ac7 100644
--- a/include/net/ieee80211softmac.h
+++ b/include/net/ieee80211softmac.h
@@ -86,9 +86,6 @@ struct ieee80211softmac_assoc_info {
/* BSSID we're trying to associate to */
char bssid[ETH_ALEN];
-
- /* Rates supported by the network */
- struct ieee80211softmac_ratesinfo supported_rates;
/* some flags.
* static_essid is valid if the essid is constant,
@@ -103,6 +100,7 @@ struct ieee80211softmac_assoc_info {
* bssfixed is used for SIOCSIWAP.
*/
u8 static_essid:1,
+ short_preamble_available:1,
associating:1,
assoc_wait:1,
bssvalid:1,
@@ -115,6 +113,19 @@ struct ieee80211softmac_assoc_info {
struct work_struct timeout;
};
+struct ieee80211softmac_bss_info {
+ /* Rates supported by the network */
+ struct ieee80211softmac_ratesinfo supported_rates;
+
+ /* This indicates whether frames can currently be transmitted with
+ * short preamble (only use this variable during TX at CCK rates) */
+ u8 short_preamble:1;
+
+ /* This indicates whether protection (e.g. self-CTS) should be used
+ * when transmitting with OFDM modulation */
+ u8 use_protection:1;
+};
+
enum {
IEEE80211SOFTMAC_AUTH_OPEN_REQUEST = 1,
IEEE80211SOFTMAC_AUTH_OPEN_RESPONSE = 2,
@@ -157,6 +168,10 @@ struct ieee80211softmac_txrates {
#define IEEE80211SOFTMAC_TXRATECHG_MCAST (1 << 2) /* mcast_rate */
#define IEEE80211SOFTMAC_TXRATECHG_MGT_MCAST (1 << 3) /* mgt_mcast_rate */
+#define IEEE80211SOFTMAC_BSSINFOCHG_RATES (1 << 0) /* supported_rates */
+#define IEEE80211SOFTMAC_BSSINFOCHG_SHORT_PREAMBLE (1 << 1) /* short_preamble */
+#define IEEE80211SOFTMAC_BSSINFOCHG_PROTECTION (1 << 2) /* use_protection */
+
struct ieee80211softmac_device {
/* 802.11 structure for data stuff */
struct ieee80211_device *ieee;
@@ -200,10 +215,16 @@ struct ieee80211softmac_device {
* The driver just needs to read them.
*/
struct ieee80211softmac_txrates txrates;
- /* If the driver needs to do stuff on TX rate changes, assign this callback. */
+
+ /* If the driver needs to do stuff on TX rate changes, assign this
+ * callback. See IEEE80211SOFTMAC_TXRATECHG for change flags. */
void (*txrates_change)(struct net_device *dev,
- u32 changes, /* see IEEE80211SOFTMAC_TXRATECHG flags */
- const struct ieee80211softmac_txrates *rates_before_change);
+ u32 changes);
+
+ /* If the driver needs to do stuff when BSS properties change, assign
+ * this callback. see IEEE80211SOFTMAC_BSSINFOCHG for change flags. */
+ void (*bssinfo_change)(struct net_device *dev,
+ u32 changes);
/* private stuff follows */
/* this lock protects this structure */
@@ -216,6 +237,7 @@ struct ieee80211softmac_device {
struct ieee80211softmac_scaninfo *scaninfo;
struct ieee80211softmac_assoc_info associnfo;
+ struct ieee80211softmac_bss_info bssinfo;
struct list_head auth_queue;
struct list_head events;
@@ -257,6 +279,14 @@ extern void ieee80211softmac_fragment_lost(struct net_device *dev,
* Note that the rates need to be sorted. */
extern void ieee80211softmac_set_rates(struct net_device *dev, u8 count, u8 *rates);
+/* Finds the highest rate which is:
+ * 1. Present in ri (optionally a basic rate)
+ * 2. Supported by the device
+ * 3. Less than or equal to the user-defined rate
+ */
+extern u8 ieee80211softmac_highest_supported_rate(struct ieee80211softmac_device *mac,
+ struct ieee80211softmac_ratesinfo *ri, int basic_only);
+
/* Helper function which advises you the rate at which a frame should be
* transmitted at. */
static inline u8 ieee80211softmac_suggest_txrate(struct ieee80211softmac_device *mac,
@@ -279,6 +309,24 @@ static inline u8 ieee80211softmac_suggest_txrate(struct ieee80211softmac_device
return txrates->mcast_rate;
}
+/* Helper function which advises you when it is safe to transmit with short
+ * preamble.
+ * You should only call this function when transmitting at CCK rates. */
+static inline int ieee80211softmac_short_preamble_ok(struct ieee80211softmac_device *mac,
+ int is_multicast,
+ int is_mgt)
+{
+ return (is_multicast && is_mgt) ? 0 : mac->bssinfo.short_preamble;
+}
+
+/* Helper function which advises you whether protection (e.g. self-CTS) is
+ * needed. 1 = protection needed, 0 = no protection needed
+ * Only use this function when transmitting with OFDM modulation. */
+static inline int ieee80211softmac_protection_needed(struct ieee80211softmac_device *mac)
+{
+ return mac->bssinfo.use_protection;
+}
+
/* Start the SoftMAC. Call this after you initialized the device
* and it is ready to run.
*/