aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/orinoco/orinoco.h
blob: a6da86e0a70faaf7d88bd76b95af9a4fd9846448 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
/* orinoco.h
 *
 * Common definitions to all pieces of the various orinoco
 * drivers
 */

#ifndef _ORINOCO_H
#define _ORINOCO_H

#define DRIVER_VERSION "0.15"

#include <linux/interrupt.h>
#include <linux/suspend.h>
#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>
#include <net/cfg80211.h>

#include "hermes.h"

/* To enable debug messages */
/*#define ORINOCO_DEBUG		3*/

#define WIRELESS_SPY		/* enable iwspy support */

#define MAX_SCAN_LEN		4096

#define ORINOCO_SEQ_LEN		8
#define ORINOCO_MAX_KEY_SIZE	14
#define ORINOCO_MAX_KEYS	4

struct orinoco_key {
	__le16 len;	/* always stored as little-endian */
	char data[ORINOCO_MAX_KEY_SIZE];
} __attribute__ ((packed));

#define TKIP_KEYLEN	16
#define MIC_KEYLEN	8

struct orinoco_tkip_key {
	u8 tkip[TKIP_KEYLEN];
	u8 tx_mic[MIC_KEYLEN];
	u8 rx_mic[MIC_KEYLEN];
};

enum orinoco_alg {
	ORINOCO_ALG_NONE,
	ORINOCO_ALG_WEP,
	ORINOCO_ALG_TKIP
};

typedef enum {
	FIRMWARE_TYPE_AGERE,
	FIRMWARE_TYPE_INTERSIL,
	FIRMWARE_TYPE_SYMBOL
} fwtype_t;

struct firmware;

struct orinoco_private {
	void *card;	/* Pointer to card dependent structure */
	struct device *dev;
	int (*hard_reset)(struct orinoco_private *);
	int (*stop_fw)(struct orinoco_private *, int);

	struct ieee80211_supported_band band;
	struct ieee80211_channel channels[14];
	u32 cipher_suites[3];

	/* Synchronisation stuff */
	spinlock_t lock;
	int hw_unavailable;
	struct work_struct reset_work;

	/* Interrupt tasklets */
	struct tasklet_struct rx_tasklet;
	struct list_head rx_list;

	/* driver state */
	int open;
	u16 last_linkstatus;
	struct work_struct join_work;
	struct work_struct wevent_work;

	/* Net device stuff */
	struct net_device *ndev;
	struct net_device_stats stats;
	struct iw_statistics wstats;

	/* Hardware control variables */
	hermes_t hw;
	u16 txfid;

	/* Capabilities of the hardware/firmware */
	fwtype_t firmware_type;
	int ibss_port;
	int nicbuf_size;
	u16 channel_mask;

	/* Boolean capabilities */
	unsigned int has_ibss:1;
	unsigned int has_port3:1;
	unsigned int has_wep:1;
	unsigned int has_big_wep:1;
	unsigned int has_mwo:1;
	unsigned int has_pm:1;
	unsigned int has_preamble:1;
	unsigned int has_sensitivity:1;
	unsigned int has_hostscan:1;
	unsigned int has_alt_txcntl:1;
	unsigned int has_ext_scan:1;
	unsigned int has_wpa:1;
	unsigned int do_fw_download:1;
	unsigned int broken_disableport:1;
	unsigned int broken_monitor:1;
	unsigned int prefer_port3:1;

	/* Configuration paramaters */
	enum nl80211_iftype iw_mode;
	enum orinoco_alg encode_alg;
	u16 wep_restrict, tx_key;
	struct key_params keys[ORINOCO_MAX_KEYS];

	int bitratemode;
	char nick[IW_ESSID_MAX_SIZE+1];
	char desired_essid[IW_ESSID_MAX_SIZE+1];
	char desired_bssid[ETH_ALEN];
	int bssid_fixed;
	u16 frag_thresh, mwo_robust;
	u16 channel;
	u16 ap_density, rts_thresh;
	u16 pm_on, pm_mcast, pm_period, pm_timeout;
	u16 preamble;
	u16 short_retry_limit, long_retry_limit;
	u16 retry_lifetime;
#ifdef WIRELESS_SPY
	struct iw_spy_data spy_data; /* iwspy support */
	struct iw_public_data	wireless_data;
#endif

	/* Configuration dependent variables */
	int port_type, createibss;
	int promiscuous, mc_count;

	/* Scanning support */
	struct cfg80211_scan_request *scan_request;
	struct work_struct process_scan;
	struct list_head scan_list;
	spinlock_t scan_lock; /* protects the scan list */

	/* WPA support */
	u8 *wpa_ie;
	int wpa_ie_len;

	struct crypto_hash *rx_tfm_mic;
	struct crypto_hash *tx_tfm_mic;

	unsigned int wpa_enabled:1;
	unsigned int tkip_cm_active:1;
	unsigned int key_mgmt:3;

#if defined(CONFIG_HERMES_CACHE_FW_ON_INIT) || defined(CONFIG_PM_SLEEP)
	/* Cached in memory firmware to use during ->resume. */
	const struct firmware *cached_pri_fw;
	const struct firmware *cached_fw;
#endif

	struct notifier_block pm_notifier;
};

#ifdef ORINOCO_DEBUG
extern int orinoco_debug;
#define DEBUG(n, args...) do { \
	if (orinoco_debug > (n)) \
		printk(KERN_DEBUG args); \
} while (0)
#else
#define DEBUG(n, args...) do { } while (0)
#endif	/* ORINOCO_DEBUG */

/********************************************************************/
/* Exported prototypes                                              */
/********************************************************************/

extern struct orinoco_private *alloc_orinocodev(
	int sizeof_card, struct device *device,
	int (*hard_reset)(struct orinoco_private *),
	int (*stop_fw)(struct orinoco_private *, int));
extern void free_orinocodev(struct orinoco_private *priv);
extern int orinoco_init(struct orinoco_private *priv);
extern int orinoco_if_add(struct orinoco_private *priv,
			  unsigned long base_addr,
			  unsigned int irq,
			  const struct net_device_ops *ops);
extern void orinoco_if_del(struct orinoco_private *priv);
extern int orinoco_up(struct orinoco_private *priv);
extern void orinoco_down(struct orinoco_private *priv);
extern irqreturn_t orinoco_interrupt(int irq, void *dev_id);

extern void __orinoco_ev_info(struct net_device *dev, hermes_t *hw);
extern void __orinoco_ev_rx(struct net_device *dev, hermes_t *hw);

int orinoco_process_xmit_skb(struct sk_buff *skb,
			     struct net_device *dev,
			     struct orinoco_private *priv,
			     int *tx_control,
			     u8 *mic);

/* Common ndo functions exported for reuse by orinoco_usb */
int orinoco_open(struct net_device *dev);
int orinoco_stop(struct net_device *dev);
struct net_device_stats *orinoco_get_stats(struct net_device *dev);
void orinoco_set_multicast_list(struct net_device *dev);
int orinoco_change_mtu(struct net_device *dev, int new_mtu);
void orinoco_tx_timeout(struct net_device *dev);

/********************************************************************/
/* Locking and synchronization functions                            */
/********************************************************************/

static inline int orinoco_lock(struct orinoco_private *priv,
			       unsigned long *flags)
{
	priv->hw.ops->lock_irqsave(&priv->lock, flags);
	if (priv->hw_unavailable) {
		DEBUG(1, "orinoco_lock() called with hw_unavailable (dev=%p)\n",
		       priv->ndev);
		priv->hw.ops->unlock_irqrestore(&priv->lock, flags);
		return -EBUSY;
	}
	return 0;
}

static inline void orinoco_unlock(struct orinoco_private *priv,
				  unsigned long *flags)
{
	priv->hw.ops->unlock_irqrestore(&priv->lock, flags);
}

static inline void orinoco_lock_irq(struct orinoco_private *priv)
{
	priv->hw.ops->lock_irq(&priv->lock);
}

static inline void orinoco_unlock_irq(struct orinoco_private *priv)
{
	priv->hw.ops->unlock_irq(&priv->lock);
}

/*** Navigate from net_device to orinoco_private ***/
static inline struct orinoco_private *ndev_priv(struct net_device *dev)
{
	struct wireless_dev *wdev = netdev_priv(dev);
	return wdev_priv(wdev);
}
#endif /* _ORINOCO_H */