b43: Add fw capabilities

Add automagic feature flags, so the firmware can tell the driver
about supported features and the driver can switch features on/off as
needed.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index 75aede02f932..f580c2812d91 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -163,6 +163,7 @@ enum {
 #define B43_SHM_SH_WLCOREREV            0x0016  /* 802.11 core revision */
 #define B43_SHM_SH_PCTLWDPOS            0x0008
 #define B43_SHM_SH_RXPADOFF             0x0034  /* RX Padding data offset (PIO only) */
+#define B43_SHM_SH_FWCAPA               0x0042  /* Firmware capabilities (Opensource firmware only) */
 #define B43_SHM_SH_PHYVER               0x0050  /* PHY version */
 #define B43_SHM_SH_PHYTYPE              0x0052  /* PHY type */
 #define B43_SHM_SH_ANTSWAP              0x005C  /* Antenna swap threshold */
@@ -297,6 +298,10 @@ enum {
 #define B43_HF_MLADVW           0x001000000000ULL /* N PHY ML ADV workaround (rev >= 13 only) */
 #define B43_HF_PR45960W         0x080000000000ULL /* PR 45960 workaround (rev >= 13 only) */
 
+/* Firmware capabilities field in SHM (Opensource firmware only) */
+#define B43_FWCAPA_HWCRYPTO     0x0001
+#define B43_FWCAPA_QOS          0x0002
+
 /* MacFilter offsets. */
 #define B43_MACFILTER_SELF              0x0000
 #define B43_MACFILTER_BSSID             0x0003
@@ -596,6 +601,13 @@ struct b43_wl {
         /* Pointer to the ieee80211 hardware data structure */
         struct ieee80211_hw *hw;
 
+        /* The number of queues that were registered with the mac80211 subsystem
+         * initially. This is a backup copy of hw->queues in case hw->queues has
+         * to be dynamically lowered at runtime (Firmware does not support QoS).
+         * hw->queues has to be restored to the original value before unregistering
+         * from the mac80211 subsystem. */
+        u16 mac80211_initially_registered_queues;
+
         struct mutex mutex;
         spinlock_t irq_lock;
         /* R/W lock for data transmission.
@@ -749,6 +761,8 @@ struct b43_wldev {
         bool dfq_valid;         /* Directed frame queue valid (IBSS PS mode, ATIM) */
         bool radio_hw_enable;   /* saved state of radio hardware enabled state */
         bool suspend_in_progress;       /* TRUE, if we are in a suspend/resume cycle */
+        bool qos_enabled;               /* TRUE, if QoS is used. */
+        bool hwcrypto_enabled;          /* TRUE, if HW crypto acceleration is enabled. */
 
         /* PHY/Radio device. */
         struct b43_phy phy;