rt2x00reg.h revision 70e2fed4ec14df84ed72554d573794714b15a078
1/* 2 Copyright (C) 2004 - 2008 rt2x00 SourceForge Project 3 <http://rt2x00.serialmonkey.com> 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 2 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the 17 Free Software Foundation, Inc., 18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 19 */ 20 21/* 22 Module: rt2x00 23 Abstract: rt2x00 generic register information. 24 */ 25 26#ifndef RT2X00REG_H 27#define RT2X00REG_H 28 29/* 30 * TX result flags. 31 */ 32enum tx_status { 33 TX_SUCCESS = 0, 34 TX_SUCCESS_RETRY = 1, 35 TX_FAIL_RETRY = 2, 36 TX_FAIL_INVALID = 3, 37 TX_FAIL_OTHER = 4, 38}; 39 40/* 41 * Antenna values 42 */ 43enum antenna { 44 ANTENNA_SW_DIVERSITY = 0, 45 ANTENNA_A = 1, 46 ANTENNA_B = 2, 47 ANTENNA_HW_DIVERSITY = 3, 48}; 49 50/* 51 * Led mode values. 52 */ 53enum led_mode { 54 LED_MODE_DEFAULT = 0, 55 LED_MODE_TXRX_ACTIVITY = 1, 56 LED_MODE_SIGNAL_STRENGTH = 2, 57 LED_MODE_ASUS = 3, 58 LED_MODE_ALPHA = 4, 59}; 60 61/* 62 * TSF sync values 63 */ 64enum tsf_sync { 65 TSF_SYNC_NONE = 0, 66 TSF_SYNC_INFRA = 1, 67 TSF_SYNC_BEACON = 2, 68}; 69 70/* 71 * Device states 72 */ 73enum dev_state { 74 STATE_DEEP_SLEEP = 0, 75 STATE_SLEEP = 1, 76 STATE_STANDBY = 2, 77 STATE_AWAKE = 3, 78 79/* 80 * Additional device states, these values are 81 * not strict since they are not directly passed 82 * into the device. 83 */ 84 STATE_RADIO_ON, 85 STATE_RADIO_OFF, 86 STATE_RADIO_RX_ON, 87 STATE_RADIO_RX_OFF, 88 STATE_RADIO_RX_ON_LINK, 89 STATE_RADIO_RX_OFF_LINK, 90 STATE_RADIO_IRQ_ON, 91 STATE_RADIO_IRQ_OFF, 92}; 93 94/* 95 * IFS backoff values 96 */ 97enum ifs { 98 IFS_BACKOFF = 0, 99 IFS_SIFS = 1, 100 IFS_NEW_BACKOFF = 2, 101 IFS_NONE = 3, 102}; 103 104/* 105 * Cipher types for hardware encryption 106 */ 107enum cipher { 108 CIPHER_NONE = 0, 109 CIPHER_WEP64 = 1, 110 CIPHER_WEP128 = 2, 111 CIPHER_TKIP = 3, 112 CIPHER_AES = 4, 113/* 114 * The following fields were added by rt61pci and rt73usb. 115 */ 116 CIPHER_CKIP64 = 5, 117 CIPHER_CKIP128 = 6, 118 CIPHER_TKIP_NO_MIC = 7, 119}; 120 121/* 122 * Register handlers. 123 * We store the position of a register field inside a field structure, 124 * This will simplify the process of setting and reading a certain field 125 * inside the register while making sure the process remains byte order safe. 126 */ 127struct rt2x00_field8 { 128 u8 bit_offset; 129 u8 bit_mask; 130}; 131 132struct rt2x00_field16 { 133 u16 bit_offset; 134 u16 bit_mask; 135}; 136 137struct rt2x00_field32 { 138 u32 bit_offset; 139 u32 bit_mask; 140}; 141 142/* 143 * Power of two check, this will check 144 * if the mask that has been given contains 145 * and contiguous set of bits. 146 */ 147#define is_power_of_two(x) ( !((x) & ((x)-1)) ) 148#define low_bit_mask(x) ( ((x)-1) & ~(x) ) 149#define is_valid_mask(x) is_power_of_two(1 + (x) + low_bit_mask(x)) 150 151#define FIELD8(__mask) \ 152({ \ 153 BUILD_BUG_ON(!(__mask) || \ 154 !is_valid_mask(__mask) || \ 155 (__mask) != (u8)(__mask)); \ 156 (struct rt2x00_field8) { \ 157 __ffs(__mask), (__mask) \ 158 }; \ 159}) 160 161#define FIELD16(__mask) \ 162({ \ 163 BUILD_BUG_ON(!(__mask) || \ 164 !is_valid_mask(__mask) || \ 165 (__mask) != (u16)(__mask));\ 166 (struct rt2x00_field16) { \ 167 __ffs(__mask), (__mask) \ 168 }; \ 169}) 170 171#define FIELD32(__mask) \ 172({ \ 173 BUILD_BUG_ON(!(__mask) || \ 174 !is_valid_mask(__mask) || \ 175 (__mask) != (u32)(__mask));\ 176 (struct rt2x00_field32) { \ 177 __ffs(__mask), (__mask) \ 178 }; \ 179}) 180 181static inline void rt2x00_set_field32(u32 *reg, 182 const struct rt2x00_field32 field, 183 const u32 value) 184{ 185 *reg &= ~(field.bit_mask); 186 *reg |= (value << field.bit_offset) & field.bit_mask; 187} 188 189static inline u32 rt2x00_get_field32(const u32 reg, 190 const struct rt2x00_field32 field) 191{ 192 return (reg & field.bit_mask) >> field.bit_offset; 193} 194 195static inline void rt2x00_set_field16(u16 *reg, 196 const struct rt2x00_field16 field, 197 const u16 value) 198{ 199 *reg &= ~(field.bit_mask); 200 *reg |= (value << field.bit_offset) & field.bit_mask; 201} 202 203static inline u16 rt2x00_get_field16(const u16 reg, 204 const struct rt2x00_field16 field) 205{ 206 return (reg & field.bit_mask) >> field.bit_offset; 207} 208 209static inline void rt2x00_set_field8(u8 *reg, 210 const struct rt2x00_field8 field, 211 const u8 value) 212{ 213 *reg &= ~(field.bit_mask); 214 *reg |= (value << field.bit_offset) & field.bit_mask; 215} 216 217static inline u8 rt2x00_get_field8(const u8 reg, 218 const struct rt2x00_field8 field) 219{ 220 return (reg & field.bit_mask) >> field.bit_offset; 221} 222 223#endif /* RT2X00REG_H */ 224