1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 
4   Broadcom B43legacy wireless driver
5 
6   Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
7   Copyright (c) 2005 Stefano Brivio <stefano.brivio@polimi.it>
8   Copyright (c) 2005, 2006 Michael Buesch <m@bues.ch>
9   Copyright (c) 2005  Danny van Dyk <kugelfang@gentoo.org>
10   Copyright (c) 2005  Andreas Jaggi <andreas.jaggi@waterwave.ch>
11   Copyright (c) 2007  Larry Finger <Larry.Finger@lwfinger.net>
12 
13   Some parts of the code in this file are derived from the ipw2200
14   driver  Copyright(c) 2003 - 2004 Intel Corporation.
15 
16 
17 */
18 
19 #ifndef B43legacy_MAIN_H_
20 #define B43legacy_MAIN_H_
21 
22 #include "b43legacy.h"
23 
24 
25 #define P4D_BYT3S(magic, nr_bytes)	u8 __p4dding##magic[nr_bytes]
26 #define P4D_BYTES(line, nr_bytes)	P4D_BYT3S(line, nr_bytes)
27 /* Magic helper macro to pad structures. Ignore those above. It's magic. */
28 #define PAD_BYTES(nr_bytes)		P4D_BYTES(__LINE__ , (nr_bytes))
29 
30 
31 /* Lightweight function to convert a frequency (in Mhz) to a channel number. */
32 static inline
33 u8 b43legacy_freq_to_channel_bg(int freq)
34 {
35 	u8 channel;
36 
37 	if (freq == 2484)
38 		channel = 14;
39 	else
40 		channel = (freq - 2407) / 5;
41 
42 	return channel;
43 }
44 static inline
45 u8 b43legacy_freq_to_channel(struct b43legacy_wldev *dev,
46 			     int freq)
47 {
48 	return b43legacy_freq_to_channel_bg(freq);
49 }
50 
51 /* Lightweight function to convert a channel number to a frequency (in Mhz). */
52 static inline
53 int b43legacy_channel_to_freq_bg(u8 channel)
54 {
55 	int freq;
56 
57 	if (channel == 14)
58 		freq = 2484;
59 	else
60 		freq = 2407 + (5 * channel);
61 
62 	return freq;
63 }
64 
65 static inline
66 int b43legacy_channel_to_freq(struct b43legacy_wldev *dev,
67 			      u8 channel)
68 {
69 	return b43legacy_channel_to_freq_bg(channel);
70 }
71 
72 static inline
73 int b43legacy_is_cck_rate(int rate)
74 {
75 	return (rate == B43legacy_CCK_RATE_1MB ||
76 		rate == B43legacy_CCK_RATE_2MB ||
77 		rate == B43legacy_CCK_RATE_5MB ||
78 		rate == B43legacy_CCK_RATE_11MB);
79 }
80 
81 static inline
82 int b43legacy_is_ofdm_rate(int rate)
83 {
84 	return !b43legacy_is_cck_rate(rate);
85 }
86 
87 void b43legacy_tsf_read(struct b43legacy_wldev *dev, u64 *tsf);
88 void b43legacy_tsf_write(struct b43legacy_wldev *dev, u64 tsf);
89 
90 u32 b43legacy_shm_read32(struct b43legacy_wldev *dev,
91 			 u16 routing, u16 offset);
92 u16 b43legacy_shm_read16(struct b43legacy_wldev *dev,
93 			 u16 routing, u16 offset);
94 void b43legacy_shm_write32(struct b43legacy_wldev *dev,
95 			 u16 routing, u16 offset,
96 			 u32 value);
97 void b43legacy_shm_write16(struct b43legacy_wldev *dev,
98 			 u16 routing, u16 offset,
99 			 u16 value);
100 
101 u32 b43legacy_hf_read(struct b43legacy_wldev *dev);
102 void b43legacy_hf_write(struct b43legacy_wldev *dev, u32 value);
103 
104 void b43legacy_dummy_transmission(struct b43legacy_wldev *dev);
105 
106 void b43legacy_wireless_core_reset(struct b43legacy_wldev *dev, u32 flags);
107 
108 void b43legacy_mac_suspend(struct b43legacy_wldev *dev);
109 void b43legacy_mac_enable(struct b43legacy_wldev *dev);
110 
111 void b43legacy_controller_restart(struct b43legacy_wldev *dev,
112 				  const char *reason);
113 
114 #endif /* B43legacy_MAIN_H_ */
115