Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / drivers / net / ath / ath_key.c

diff --git a/qemu/roms/ipxe/src/drivers/net/ath/ath_key.c b/qemu/roms/ipxe/src/drivers/net/ath/ath_key.c
new file mode 100644 (file)
index 0000000..d269a45
--- /dev/null
+++ b/qemu/roms/ipxe/src/drivers/net/ath/ath_key.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2009 Atheros Communications Inc.
+ * Copyright (c) 2010 Bruno Randolf <br1@einfach.org>
+ *
+ * Modified for iPXE by Scott K Logan <logans@cottsay.net> July 2011
+ * Original from Linux kernel 3.0.1
+ *
+ * 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 "ath.h"
+#include "reg.h"
+
+#define REG_READ                       (common->ops->read)
+#define REG_WRITE(_ah, _reg, _val)     (common->ops->write)(_ah, _val, _reg)
+#define ENABLE_REGWRITE_BUFFER(_ah)                    \
+       if (common->ops->enable_write_buffer)           \
+               common->ops->enable_write_buffer((_ah));
+
+#define REGWRITE_BUFFER_FLUSH(_ah)                     \
+       if (common->ops->write_flush)                   \
+               common->ops->write_flush((_ah));
+
+
+#define IEEE80211_WEP_NKID      4       /* number of key ids */
+
+/************************/
+/* Key Cache Management */
+/************************/
+
+int ath_hw_keyreset(struct ath_common *common, u16 entry)
+{
+       u32 keyType;
+       void *ah = common->ah;
+
+       if (entry >= common->keymax) {
+               DBG("ath: keycache entry %d out of range\n", entry);
+               return 0;
+       }
+
+       keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));
+
+       ENABLE_REGWRITE_BUFFER(ah);
+
+       REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
+       REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
+       REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
+       REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
+       REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
+       REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
+       REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
+       REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
+
+       if (keyType == AR_KEYTABLE_TYPE_TKIP) {
+               u16 micentry = entry + 64;
+
+               REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
+               REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
+               REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
+               REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
+               if (common->crypt_caps & ATH_CRYPT_CAP_MIC_COMBINED) {
+                       REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
+                       REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
+                                 AR_KEYTABLE_TYPE_CLR);
+               }
+
+       }
+
+       REGWRITE_BUFFER_FLUSH(ah);
+
+       return 1;
+}