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