aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/bcm43xx/bcm43xx_main.h
blob: 1d3eddd314bc386e305e0b982d359d3fd7da2ed1 (plain)
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
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
/*

  Broadcom BCM43xx wireless driver

  Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
                     Stefano Brivio <st3@riseup.net>
                     Michael Buesch <mbuesch@freenet.de>
                     Danny van Dyk <kugelfang@gentoo.org>
                     Andreas Jaggi <andreas.jaggi@waterwave.ch>

  Some parts of the code in this file are derived from the ipw2200
  driver  Copyright(c) 2003 - 2004 Intel Corporation.

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; see the file COPYING.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  Boston, MA 02110-1301, USA.

*/

#ifndef BCM43xx_MAIN_H_
#define BCM43xx_MAIN_H_

#include "bcm43xx.h"

#ifdef CONFIG_BCM947XX
#define atoi(str) simple_strtoul(((str != NULL) ? str : ""), NULL, 0)

static inline void e_aton(char *str, char *dest)
{
	int i = 0;
	u16 *d = (u16 *) dest;

	for (;;) {
		dest[i++] = (char) simple_strtoul(str, NULL, 16);
		str += 2;
		if (!*str++ || i == 6)
			break;
	}
	for (i = 0; i < 3; i++)
		d[i] = cpu_to_be16(d[i]);
}
#endif


#define _bcm43xx_declare_plcp_hdr(size) \
	struct bcm43xx_plcp_hdr##size {		\
		union {				\
			__le32 data;		\
			__u8 raw[size];		\
		} __attribute__((__packed__));	\
	} __attribute__((__packed__))

/* struct bcm43xx_plcp_hdr4 */
_bcm43xx_declare_plcp_hdr(4);
/* struct bcm430c_plcp_hdr6 */
_bcm43xx_declare_plcp_hdr(6);

#undef _bcm43xx_declare_plcp_hdr


#define P4D_BYT3S(magic, nr_bytes)	u8 __p4dding##magic[nr_bytes]
#define P4D_BYTES(line, nr_bytes)	P4D_BYT3S(line, nr_bytes)
/* Magic helper macro to pad structures. Ignore those above. It's magic. */
#define PAD_BYTES(nr_bytes)		P4D_BYTES( __LINE__ , (nr_bytes))


/* Device specific TX header. To be prepended to TX frames. */
struct bcm43xx_txhdr {
	union {
		struct {
			u16 flags;
			u16 wsec_rate;
			u16 frame_control;
			u16 unknown_zeroed_0;
			u16 control;
			unsigned char wep_iv[10];
			unsigned char unknown_wsec_tkip_data[3]; //FIXME
			PAD_BYTES(3);
			unsigned char mac1[6];
			u16 unknown_zeroed_1;
			struct bcm43xx_plcp_hdr4 rts_cts_fallback_plcp;
			u16 rts_cts_dur_fallback;
			struct bcm43xx_plcp_hdr4 fallback_plcp;
			u16 fallback_dur_id;
			PAD_BYTES(2);
			u16 cookie;
			u16 unknown_scb_stuff; //FIXME
			struct bcm43xx_plcp_hdr6 rts_cts_plcp;
			u16 rts_cts_frame_type;
			u16 rts_cts_dur;
			unsigned char rts_cts_mac1[6];
			unsigned char rts_cts_mac2[6];
			PAD_BYTES(2);
			struct bcm43xx_plcp_hdr6 plcp;
		} __attribute__((__packed__));

		unsigned char raw[82];
	} __attribute__((__packed__));
} __attribute__((__packed__));

struct sk_buff;

void FASTCALL(bcm43xx_generate_txhdr(struct bcm43xx_private *bcm,
				     struct bcm43xx_txhdr *txhdr,
				     const unsigned char *fragment_data,
				     const unsigned int fragment_len,
				     const int is_first_fragment,
				     const u16 cookie));

/* RX header as received from the hardware. */
struct bcm43xx_rxhdr {
	/* Frame Length. Must be generated explicitely in PIO mode. */
	__le16 frame_length;
	PAD_BYTES(2);
	/* Flags field 1 */
	__le16 flags1;
	u8 rssi;
	u8 signal_quality;
	PAD_BYTES(2);
	/* Flags field 3 */
	__le16 flags3;
	/* Flags field 2 */
	__le16 flags2;
	/* Lower 16bits of the TSF at the time the frame started. */
	__le16 mactime;
	PAD_BYTES(14);
} __attribute__((__packed__));

#define BCM43xx_RXHDR_FLAGS1_OFDM		(1 << 0)
/*#define BCM43xx_RXHDR_FLAGS1_SIGNAL???	(1 << 3) FIXME */
#define BCM43xx_RXHDR_FLAGS1_SHORTPREAMBLE	(1 << 7)
#define BCM43xx_RXHDR_FLAGS1_2053RSSIADJ	(1 << 14)

#define BCM43xx_RXHDR_FLAGS2_INVALIDFRAME	(1 << 0)
#define BCM43xx_RXHDR_FLAGS2_TYPE2FRAME		(1 << 2)
/*FIXME: WEP related flags */

#define BCM43xx_RXHDR_FLAGS3_2050RSSIADJ	(1 << 10)

/* Transmit Status as received from the hardware. */
struct bcm43xx_hwxmitstatus {
	PAD_BYTES(4);
	__le16 cookie;
	u8 flags;
	u8 cnt1:4,
	   cnt2:4;
	PAD_BYTES(2);
	__le16 seq;
	__le16 unknown; //FIXME
} __attribute__((__packed__));

/* Transmit Status in CPU byteorder. */
struct bcm43xx_xmitstatus {
	u16 cookie;
	u8 flags;
	u8 cnt1:4,
	   cnt2:4;
	u16 seq;
	u16 unknown; //FIXME
};

#define BCM43xx_TXSTAT_FLAG_ACK		0x01
//TODO #define BCM43xx_TXSTAT_FLAG_???	0x02
//TODO #define BCM43xx_TXSTAT_FLAG_???	0x04
//TODO #define BCM43xx_TXSTAT_FLAG_???	0x08
//TODO #define BCM43xx_TXSTAT_FLAG_???	0x10
#define BCM43xx_TXSTAT_FLAG_IGNORE	0x20
//TODO #define BCM43xx_TXSTAT_FLAG_???	0x40
//TODO #define BCM43xx_TXSTAT_FLAG_???	0x80

struct bcm43xx_xmitstatus_queue {
	struct list_head list;
	struct bcm43xx_hwxmitstatus status;
};


/* Lightweight function to convert a frequency (in Mhz) to a channel number. */
static inline
u8 bcm43xx_freq_to_channel(struct bcm43xx_private *bcm,
			   int freq)
{
	u8 channel;

	if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) {
		channel = (freq - 5000) / 5;
	} else {
		if (freq == 2484)
			channel = 14;
		else
			channel = (freq - 2407) / 5;
	}

	return channel;
}

/* Lightweight function to convert a channel number to a frequency (in Mhz). */
static inline
int bcm43xx_channel_to_freq(struct bcm43xx_private *bcm,
			    u8 channel)
{
	int freq;

	if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) {
		freq = 5000 + (5 * channel);
	} else {
		if (channel == 14)
			freq = 2484;
		else
			freq = 2407 + (5 * channel);
	}

	return freq;
}

/* Lightweight function to check if a channel number is valid.
 * Note that this does _NOT_ check for geographical restrictions!
 */
static inline
int bcm43xx_is_valid_channel(struct bcm43xx_private *bcm,
			    u8 channel)
{
	if (bcm->current_core->phy->type == BCM43xx_PHYTYPE_A) {
		if (channel <= 200)
			return 1;
	} else {
		if (channel >= 1 && channel <= 14)
			return 1;
	}

	return 0;
}

void bcm43xx_tsf_read(struct bcm43xx_private *bcm, u64 *tsf);
void bcm43xx_tsf_write(struct bcm43xx_private *bcm, u64 tsf);

int FASTCALL(bcm43xx_rx(struct bcm43xx_private *bcm,
			struct sk_buff *skb,
			struct bcm43xx_rxhdr *rxhdr));

void bcm43xx_set_iwmode(struct bcm43xx_private *bcm,
			int iw_mode);

u32 bcm43xx_shm_read32(struct bcm43xx_private *bcm,
		       u16 routing, u16 offset);
u16 bcm43xx_shm_read16(struct bcm43xx_private *bcm,
		       u16 routing, u16 offset);
void bcm43xx_shm_write32(struct bcm43xx_private *bcm,
			 u16 routing, u16 offset,
			 u32 value);
void bcm43xx_shm_write16(struct bcm43xx_private *bcm,
			 u16 routing, u16 offset,
			 u16 value);

void bcm43xx_dummy_transmission(struct bcm43xx_private *bcm);

int bcm43xx_switch_core(struct bcm43xx_private *bcm, struct bcm43xx_coreinfo *new_core);

void bcm43xx_wireless_core_reset(struct bcm43xx_private *bcm, int connect_phy);

int bcm43xx_pci_read_config_16(struct pci_dev *pdev, u16 offset, u16 *val);
int bcm43xx_pci_read_config_32(struct pci_dev *pdev, u16 offset, u32 *val);
int bcm43xx_pci_write_config_16(struct pci_dev *pdev, int offset, u16 val);
int bcm43xx_pci_write_config_32(struct pci_dev *pdev, int offset, u32 val);

void bcm43xx_mac_suspend(struct bcm43xx_private *bcm);
void bcm43xx_mac_enable(struct bcm43xx_private *bcm);

u8 bcm43xx_sprom_crc(const u16 *sprom);

void bcm43xx_controller_restart(struct bcm43xx_private *bcm, const char *reason);

#endif /* BCM43xx_MAIN_H_ */