/* Copyright (C) 2004 - 2007 rt2x00 SourceForge Project 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; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Module: rt2x00 Abstract: rt2x00 generic register information. */ #ifndef RT2X00REG_H #define RT2X00REG_H /* * TX result flags. */ enum TX_STATUS { TX_SUCCESS = 0, TX_SUCCESS_RETRY = 1, TX_FAIL_RETRY = 2, TX_FAIL_INVALID = 3, TX_FAIL_OTHER = 4, }; /* * Antenna values */ enum antenna { ANTENNA_SW_DIVERSITY = 0, ANTENNA_A = 1, ANTENNA_B = 2, ANTENNA_HW_DIVERSITY = 3, }; /* * Led mode values. */ enum led_mode { LED_MODE_DEFAULT = 0, LED_MODE_TXRX_ACTIVITY = 1, LED_MODE_SIGNAL_STRENGTH = 2, LED_MODE_ASUS = 3, LED_MODE_ALPHA = 4, }; /* * Device states */ enum dev_state { STATE_DEEP_SLEEP = 0, STATE_SLEEP = 1, STATE_STANDBY = 2, STATE_AWAKE = 3, /* * Additional device states, these values are * not strict since they are not directly passed * into the device. */ STATE_RADIO_ON, STATE_RADIO_OFF, STATE_RADIO_RX_ON, STATE_RADIO_RX_OFF, STATE_RADIO_IRQ_ON, STATE_RADIO_IRQ_OFF, }; /* * IFS backoff values */ enum ifs { IFS_BACKOFF = 0, IFS_SIFS = 1, IFS_NEW_BACKOFF = 2, IFS_NONE = 3, }; /* * Cipher types for hardware encryption */ enum cipher { CIPHER_NONE = 0, CIPHER_WEP64 = 1, CIPHER_WEP128 = 2, CIPHER_TKIP = 3, CIPHER_AES = 4, /* * The following fields were added by rt61pci and rt73usb. */ CIPHER_CKIP64 = 5, CIPHER_CKIP128 = 6, CIPHER_TKIP_NO_MIC = 7, }; /* * Register handlers. * We store the position of a register field inside a field structure, * This will simplify the process of setting and reading a certain field * inside the register while making sure the process remains byte order safe. */ struct rt2x00_field8 { u8 bit_offset; u8 bit_mask; }; struct rt2x00_field16 { u16 bit_offset; u16 bit_mask; }; struct rt2x00_field32 { u32 bit_offset; u32 bit_mask; }; /* * Power of two check, this will check * if the mask that has been given contains * and contiguous set of bits. */ #define is_power_of_two(x) ( !((x) & ((x)-1)) ) #define low_bit_mask(x) ( ((x)-1) & ~(x) ) #define is_valid_mask(x) is_power_of_two(1 + (x) + low_bit_mask(x)) #define FIELD8(__mask) \ ({ \ BUILD_BUG_ON(!(__mask) || \ !is_valid_mask(__mask) || \ (__mask) != (u8)(__mask)); \ (struct rt2x00_field8) { \ __ffs(__mask), (__mask) \ }; \ }) #define FIELD16(__mask) \ ({ \ BUILD_BUG_ON(!(__mask) || \ !is_valid_mask(__mask) || \ (__mask) != (u16)(__mask));\ (struct rt2x00_field16) { \ __ffs(__mask), (__mask) \ }; \ }) #define FIELD32(__mask) \ ({ \ BUILD_BUG_ON(!(__mask) || \ !is_valid_mask(__mask) || \ (__mask) != (u32)(__mask));\ (struct rt2x00_field32) { \ __ffs(__mask), (__mask) \ }; \ }) static inline void rt2x00_set_field32(u32 *reg, const struct rt2x00_field32 field, const u32 value) { *reg &= ~(field.bit_mask); *reg |= (value << field.bit_offset) & field.bit_mask; } static inline u32 rt2x00_get_field32(const u32 reg, const struct rt2x00_field32 field) { return (reg & field.bit_mask) >> field.bit_offset; } static inline void rt2x00_set_field16(u16 *reg, const struct rt2x00_field16 field, const u16 value) { *reg &= ~(field.bit_mask); *reg |= (value << field.bit_offset) & field.bit_mask; } static inline u16 rt2x00_get_field16(const u16 reg, const struct rt2x00_field16 field) { return (reg & field.bit_mask) >> field.bit_offset; } static inline void rt2x00_set_field8(u8 *reg, const struct rt2x00_field8 field, const u8 value) { *reg &= ~(field.bit_mask); *reg |= (value << field.bit_offset) & field.bit_mask; } static inline u8 rt2x00_get_field8(const u8 reg, const struct rt2x00_field8 field) { return (reg & field.bit_mask) >> field.bit_offset; } /* * Device specific rate value. * We will have to create the device specific rate value * passed to the ieee80211 kernel. We need to make it a consist of * multiple fields because we want to store more then 1 device specific * values inside the value. * 1 - rate, stored as 100 kbit/s. * 2 - preamble, short_preamble enabled flag. * 3 - MASK_RATE, which rates are enabled in this mode, this mask * corresponds with the TX register format for the current device. * 4 - plcp, 802.11b rates are device specific, * 802.11g rates are set according to the ieee802.11a-1999 p.14. * The bit to enable preamble is set in a seperate define. */ #define DEV_RATE FIELD32(0x000007ff) #define DEV_PREAMBLE FIELD32(0x00000800) #define DEV_RATEMASK FIELD32(0x00fff000) #define DEV_PLCP FIELD32(0xff000000) /* * Bitfields */ #define DEV_RATEBIT_1MB ( 1 << 0 ) #define DEV_RATEBIT_2MB ( 1 << 1 ) #define DEV_RATEBIT_5_5MB ( 1 << 2 ) #define DEV_RATEBIT_11MB ( 1 << 3 ) #define DEV_RATEBIT_6MB ( 1 << 4 ) #define DEV_RATEBIT_9MB ( 1 << 5 ) #define DEV_RATEBIT_12MB ( 1 << 6 ) #define DEV_RATEBIT_18MB ( 1 << 7 ) #define DEV_RATEBIT_24MB ( 1 << 8 ) #define DEV_RATEBIT_36MB ( 1 << 9 ) #define DEV_RATEBIT_48MB ( 1 << 10 ) #define DEV_RATEBIT_54MB ( 1 << 11 ) /* * Bitmasks for DEV_RATEMASK */ #define DEV_RATEMASK_1MB ( (DEV_RATEBIT_1MB << 1) -1 ) #define DEV_RATEMASK_2MB ( (DEV_RATEBIT_2MB << 1) -1 ) #define DEV_RATEMASK_5_5MB ( (DEV_RATEBIT_5_5MB << 1) -1 ) #define DEV_RATEMASK_11MB ( (DEV_RATEBIT_11MB << 1) -1 ) #define DEV_RATEMASK_6MB ( (DEV_RATEBIT_6MB << 1) -1 ) #define DEV_RATEMASK_9MB ( (DEV_RATEBIT_9MB << 1) -1 ) #define DEV_RATEMASK_12MB ( (DEV_RATEBIT_12MB << 1) -1 ) #define DEV_RATEMASK_18MB ( (DEV_RATEBIT_18MB << 1) -1 ) #define DEV_RATEMASK_24MB ( (DEV_RATEBIT_24MB << 1) -1 ) #define DEV_RATEMASK_36MB ( (DEV_RATEBIT_36MB << 1) -1 ) #define DEV_RATEMASK_48MB ( (DEV_RATEBIT_48MB << 1) -1 ) #define DEV_RATEMASK_54MB ( (DEV_RATEBIT_54MB << 1) -1 ) /* * Bitmask groups of bitrates */ #define DEV_BASIC_RATEMASK \ ( DEV_RATEMASK_11MB | \ DEV_RATEBIT_6MB | DEV_RATEBIT_12MB | DEV_RATEBIT_24MB ) #define DEV_CCK_RATEMASK ( DEV_RATEMASK_11MB ) #define DEV_OFDM_RATEMASK ( DEV_RATEMASK_54MB & ~DEV_CCK_RATEMASK ) /* * Macro's to set and get specific fields from the device specific val and val2 * fields inside the ieee80211_rate entry. */ #define DEVICE_SET_RATE_FIELD(__value, __mask) \ (int)( ((__value) << DEV_##__mask.bit_offset) & DEV_##__mask.bit_mask ) #define DEVICE_GET_RATE_FIELD(__value, __mask) \ (int)( ((__value) & DEV_##__mask.bit_mask) >> DEV_##__mask.bit_offset ) #endif /* RT2X00REG_H */