[PATCH] Net: add ath5k wireless driver
add ath5k wireless driver
Portions of this driver are covered by one or both of the ISC and
3-clause BSD licenses. Specific license information is cited at the top
of each file.
Acked-by and Signed-off-by information is collected from individual
patches as collected in the wireless-2.6 tree prior to upstream
submission.
Acked-by: Matthew W. S. Bell <mentor@madwifi.org>
Acked-by: Michael Taylor <mike.taylor@apprion.com>
Acked-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bradley M. Kuhn <bkuhn@softwarefreedom.org>
Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Francesco Gringoli <francesco.gringoli@ing.unibs.it>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Karen Sandler <karen@softwarefreedom.org>
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Luis R. Rodriguez <mcgrof@gmail.com>
Signed-off-by: Matt Norwood <norwood@softwarefreedom.org>
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Richard Fontana <fontana@softwarefreedom.org>
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Ulrich Meis <meis@nets.rwth-aachen.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath5k/base.h b/drivers/net/wireless/ath5k/base.h
new file mode 100644
index 0000000..927d67d
--- /dev/null
+++ b/drivers/net/wireless/ath5k/base.h
@@ -0,0 +1,178 @@
+/*-
+ * Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
+ * redistribution must be conditioned upon including a substantially
+ * similar Disclaimer requirement for further binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
+ * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+ * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ */
+
+/*
+ * Defintions for the Atheros Wireless LAN controller driver.
+ */
+#ifndef _DEV_ATH_ATHVAR_H
+#define _DEV_ATH_ATHVAR_H
+
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/wireless.h>
+#include <linux/if_ether.h>
+
+#include "ath5k.h"
+#include "debug.h"
+
+#define ATH_RXBUF 40 /* number of RX buffers */
+#define ATH_TXBUF 200 /* number of TX buffers */
+#define ATH_BCBUF 1 /* number of beacon buffers */
+
+struct ath5k_buf {
+ struct list_head list;
+ unsigned int flags; /* tx descriptor flags */
+ struct ath5k_desc *desc; /* virtual addr of desc */
+ dma_addr_t daddr; /* physical addr of desc */
+ struct sk_buff *skb; /* skbuff for buf */
+ dma_addr_t skbaddr;/* physical addr of skb data */
+ struct ieee80211_tx_control ctl;
+};
+
+/*
+ * Data transmit queue state. One of these exists for each
+ * hardware transmit queue. Packets sent to us from above
+ * are assigned to queues based on their priority. Not all
+ * devices support a complete set of hardware transmit queues.
+ * For those devices the array sc_ac2q will map multiple
+ * priorities to fewer hardware queues (typically all to one
+ * hardware queue).
+ */
+struct ath5k_txq {
+ unsigned int qnum; /* hardware q number */
+ u32 *link; /* link ptr in last TX desc */
+ struct list_head q; /* transmit queue */
+ spinlock_t lock; /* lock on q and link */
+ bool setup;
+};
+
+#if CHAN_DEBUG
+#define ATH_CHAN_MAX (26+26+26+200+200)
+#else
+#define ATH_CHAN_MAX (14+14+14+252+20) /* XXX what's the max? */
+#endif
+
+/* Software Carrier, keeps track of the driver state
+ * associated with an instance of a device */
+struct ath5k_softc {
+ struct pci_dev *pdev; /* for dma mapping */
+ void __iomem *iobase; /* address of the device */
+ struct mutex lock; /* dev-level lock */
+ struct ieee80211_tx_queue_stats tx_stats;
+ struct ieee80211_low_level_stats ll_stats;
+ struct ieee80211_hw *hw; /* IEEE 802.11 common */
+ struct ieee80211_hw_mode modes[NUM_DRIVER_MODES];
+ struct ieee80211_channel channels[ATH_CHAN_MAX];
+ struct ieee80211_rate rates[AR5K_MAX_RATES * NUM_DRIVER_MODES];
+ enum ieee80211_if_types opmode;
+ struct ath5k_hw *ah; /* Atheros HW */
+
+#if ATH5K_DEBUG
+ struct ath5k_dbg_info debug; /* debug info */
+#endif
+
+ struct ath5k_buf *bufptr; /* allocated buffer ptr */
+ struct ath5k_desc *desc; /* TX/RX descriptors */
+ dma_addr_t desc_daddr; /* DMA (physical) address */
+ size_t desc_len; /* size of TX/RX descriptors */
+ u16 cachelsz; /* cache line size */
+
+ DECLARE_BITMAP(status, 6);
+#define ATH_STAT_INVALID 0 /* disable hardware accesses */
+#define ATH_STAT_MRRETRY 1 /* multi-rate retry support */
+#define ATH_STAT_PROMISC 2
+#define ATH_STAT_LEDBLINKING 3 /* LED blink operation active */
+#define ATH_STAT_LEDENDBLINK 4 /* finish LED blink operation */
+#define ATH_STAT_LEDSOFT 5 /* enable LED gpio status */
+
+ unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */
+ unsigned int curmode; /* current phy mode */
+ struct ieee80211_channel *curchan; /* current h/w channel */
+
+ int iface_id; /* add/remove_interface id */
+
+ struct {
+ u8 rxflags; /* radiotap rx flags */
+ u8 txflags; /* radiotap tx flags */
+ u16 ledon; /* softled on time */
+ u16 ledoff; /* softled off time */
+ } hwmap[32]; /* h/w rate ix mappings */
+
+ enum ath5k_int imask; /* interrupt mask copy */
+
+ DECLARE_BITMAP(keymap, AR5K_KEYCACHE_SIZE); /* key use bit map */
+
+ u8 bssidmask[ETH_ALEN];
+
+ unsigned int led_pin, /* GPIO pin for driving LED */
+ led_on, /* pin setting for LED on */
+ led_off; /* off time for current blink */
+ struct timer_list led_tim; /* led off timer */
+ u8 led_rxrate; /* current rx rate for LED */
+ u8 led_txrate; /* current tx rate for LED */
+
+ struct tasklet_struct restq; /* reset tasklet */
+
+ unsigned int rxbufsize; /* rx size based on mtu */
+ struct list_head rxbuf; /* receive buffer */
+ spinlock_t rxbuflock;
+ u32 *rxlink; /* link ptr in last RX desc */
+ struct tasklet_struct rxtq; /* rx intr tasklet */
+
+ struct list_head txbuf; /* transmit buffer */
+ spinlock_t txbuflock;
+ unsigned int txbuf_len; /* buf count in txbuf list */
+ struct ath5k_txq txqs[2]; /* beacon and tx */
+
+ struct ath5k_txq *txq; /* beacon and tx*/
+ struct tasklet_struct txtq; /* tx intr tasklet */
+
+ struct ath5k_buf *bbuf; /* beacon buffer */
+ unsigned int bhalq, /* SW q for outgoing beacons */
+ bmisscount, /* missed beacon transmits */
+ bintval, /* beacon interval */
+ bsent;
+
+ struct timer_list calib_tim; /* calibration timer */
+};
+
+#define ath5k_hw_hasbssidmask(_ah) \
+ (ath5k_hw_get_capability(_ah, AR5K_CAP_BSSIDMASK, 0, NULL) == 0)
+#define ath5k_hw_hasveol(_ah) \
+ (ath5k_hw_get_capability(_ah, AR5K_CAP_VEOL, 0, NULL) == 0)
+
+#endif