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/*
Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
<http://rt2x00.serialmonkey.com>
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,
};
/*
* TSF sync values
*/
enum tsf_sync {
TSF_SYNC_NONE = 0,
TSF_SYNC_INFRA = 1,
TSF_SYNC_BEACON = 2,
};
/*
* 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_RX_ON_LINK,
STATE_RADIO_RX_OFF_LINK,
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 */
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