fishHEADmaster

1 files changed, 102 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/main.c b/drivers/net/wireless/ath/main.c
new file mode 100644
index 0000000..c638d57
--- /dev/null
+++ b/drivers/net/wireless/ath/main.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2009 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.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "ath.h"
+
+MODULE_AUTHOR("Atheros Communications");
+MODULE_DESCRIPTION("Shared library for Atheros wireless LAN cards.");
+MODULE_LICENSE("Dual BSD/GPL");
+
+struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
+				u32 len,
+				gfp_t gfp_mask)
+{
+	struct sk_buff *skb;
+	u32 off;
+
+	/*
+	 * Cache-line-align.  This is important (for the
+	 * 5210 at least) as not doing so causes bogus data
+	 * in rx'd frames.
+	 */
+
+	/* Note: the kernel can allocate a value greater than
+	 * what we ask it to give us. We really only need 4 KB as that
+	 * is this hardware supports and in fact we need at least 3849
+	 * as that is the MAX AMSDU size this hardware supports.
+	 * Unfortunately this means we may get 8 KB here from the
+	 * kernel... and that is actually what is observed on some
+	 * systems :( */
+	skb = __dev_alloc_skb(len + common->cachelsz - 1, gfp_mask);
+	if (skb != NULL) {
+		off = ((unsigned long) skb->data) % common->cachelsz;
+		if (off != 0)
+			skb_reserve(skb, common->cachelsz - off);
+	} else {
+		pr_err("skbuff alloc of size %u failed\n", len);
+		return NULL;
+	}
+
+	return skb;
+}
+EXPORT_SYMBOL(ath_rxbuf_alloc);
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,36))
+void ath_printk(const char *level, const struct ath_common* common,
+		const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	if (common && common->hw && common->hw->wiphy)
+		printk("%sath: %s: %pV",
+		       level, wiphy_name(common->hw->wiphy), &vaf);
+	else
+		printk("%sath: %pV", level, &vaf);
+
+	va_end(args);
+}
+#else
+void ath_printk(const char *level, const struct ath_common* common,
+		const char *fmt, ...)
+{
+	va_list args;
+
+	va_start(args, fmt);
+
+	if (common && common->hw && common->hw->wiphy)
+		printk("%sath: %s: ",
+		       level, wiphy_name(common->hw->wiphy));
+	else
+		printk("%sath: ", level);
+
+	vprintk(fmt, args);
+
+	va_end(args);
+}
+#endif
+
+EXPORT_SYMBOL(ath_printk);