mirror of
https://github.com/opnsense/src.git
synced 2026-04-27 09:06:49 -04:00
ebacd8013f
Import common ISC-licensed athk parts assumed to be based on Linux kvalo/ath.git master at 6bae9de622d3ef4805aba40e763eb4b0975c4f6d. The only modification should be for FreeBSD module handling in main.c. Add the module build framework unconnected to the build for now. These files will be shared by ath1?k drivers. MFC after: 2 months
104 lines
3 KiB
C
104 lines
3 KiB
C
/*
|
|
* 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"
|
|
#include "trace.h"
|
|
|
|
MODULE_AUTHOR("Atheros Communications");
|
|
MODULE_DESCRIPTION("Shared library for Atheros wireless LAN cards.");
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
|
#if defined(__FreeBSD__)
|
|
MODULE_VERSION(athk_common, 1);
|
|
MODULE_DEPEND(athk_common, linuxkpi, 1, 1, 1);
|
|
MODULE_DEPEND(athk_common, linuxkpi_wlan, 1, 1, 1);
|
|
#endif
|
|
|
|
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);
|
|
|
|
bool ath_is_mybeacon(struct ath_common *common, struct ieee80211_hdr *hdr)
|
|
{
|
|
return ieee80211_is_beacon(hdr->frame_control) &&
|
|
!is_zero_ether_addr(common->curbssid) &&
|
|
ether_addr_equal_64bits(hdr->addr3, common->curbssid);
|
|
}
|
|
EXPORT_SYMBOL(ath_is_mybeacon);
|
|
|
|
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);
|
|
trace_ath_log(common->hw->wiphy, &vaf);
|
|
} else {
|
|
printk("%sath: %pV", level, &vaf);
|
|
}
|
|
|
|
va_end(args);
|
|
}
|
|
EXPORT_SYMBOL(ath_printk);
|
|
|
|
const char *ath_bus_type_strings[] = {
|
|
[ATH_PCI] = "pci",
|
|
[ATH_AHB] = "ahb",
|
|
[ATH_USB] = "usb",
|
|
};
|
|
EXPORT_SYMBOL(ath_bus_type_strings);
|