/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
<http://rt2x00.serialmonkey.com>
*/
/*
Module: rt2x00
Abstract: rt2x00 generic register information.
*/
#ifndef RT2X00REG_H
#define RT2X00REG_H
/*
* RX crypto status
*/
enum rx_crypto {
RX_CRYPTO_SUCCESS =
0,
RX_CRYPTO_FAIL_ICV =
1,
RX_CRYPTO_FAIL_MIC =
2,
RX_CRYPTO_FAIL_KEY =
3,
};
/*
* 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_ADHOC =
2,
TSF_SYNC_AP_NONE =
3,
};
/*
* 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_IRQ_ON,
STATE_RADIO_IRQ_OFF,
};
/*
* IFS backoff values
*/
enum ifs {
IFS_BACKOFF =
0,
IFS_SIFS =
1,
IFS_NEW_BACKOFF =
2,
IFS_NONE =
3,
};
/*
* IFS backoff values for HT devices
*/
enum txop {
TXOP_HTTXOP =
0,
TXOP_PIFS =
1,
TXOP_SIFS =
2,
TXOP_BACKOFF =
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,
/* Don't send to device */
/*
* Max cipher type.
* Note that CIPHER_NONE isn't counted, and CKIP64 and CKIP128
* are excluded due to limitations in mac80211.
*/
CIPHER_MAX =
4,
};
/*
* Rate modulations
*/
enum rate_modulation {
RATE_MODE_CCK =
0,
RATE_MODE_OFDM =
1,
RATE_MODE_HT_MIX =
2,
RATE_MODE_HT_GREENFIELD =
3,
};
/*
* Firmware validation error codes
*/
enum firmware_errors {
FW_OK,
FW_BAD_CRC,
FW_BAD_LENGTH,
FW_BAD_VERSION,
};
/*
* 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.
* Note that we cannot use the is_power_of_2() function since this
* check must be done at compile-time.
*/
#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(
1LU + (x) + low_bit_mask(x))
/*
* Macros to find first set bit in a variable.
* These macros behave the same as the __ffs() functions but
* the most important difference that this is done during
* compile-time rather then run-time.
*/
#define compile_ffs2(__x) \
__builtin_choose_expr(((__x) &
0x1),
0,
1)
#define compile_ffs4(__x) \
__builtin_choose_expr(((__x) &
0x3), \
(compile_ffs2((__x))), \
(compile_ffs2((__x) >>
2) +
2))
#define compile_ffs8(__x) \
__builtin_choose_expr(((__x) &
0xf), \
(compile_ffs4((__x))), \
(compile_ffs4((__x) >>
4) +
4))
#define compile_ffs16(__x) \
__builtin_choose_expr(((__x) &
0xff), \
(compile_ffs8((__x))), \
(compile_ffs8((__x) >>
8) +
8))
#define compile_ffs32(__x) \
__builtin_choose_expr(((__x) &
0xffff), \
(compile_ffs16((__x))), \
(compile_ffs16((__x) >>
16) +
16))
/*
* This macro will check the requirements for the FIELD{8,16,32} macros
* The mask should be a constant non-zero contiguous set of bits which
* does not exceed the given typelimit.
*/
#define FIELD_CHECK(__mask, __type) \
BUILD_BUG_ON(!(__mask) || \
!is_valid_mask(__mask) || \
(__mask) != (__type)(__mask)) \
#define FIELD8(__mask) \
({ \
FIELD_CHECK(__mask, u8); \
(
struct rt2x00_field8) { \
compile_ffs8(__mask), (__mask) \
}; \
})
#define FIELD16(__mask) \
({ \
FIELD_CHECK(__mask, u16); \
(
struct rt2x00_field16) { \
compile_ffs16(__mask), (__mask) \
}; \
})
#define FIELD32(__mask) \
({ \
FIELD_CHECK(__mask, u32); \
(
struct rt2x00_field32) { \
compile_ffs32(__mask), (__mask) \
}; \
})
#define SET_FIELD(__reg, __type, __field, __value)\
({ \
typecheck(__type, __field); \
*(__reg) &= ~((__field).bit_mask); \
*(__reg) |= ((__value) << \
((__field).bit_offset)) & \
((__field).bit_mask); \
})
#define GET_FIELD(__reg, __type, __field) \
({ \
typecheck(__type, __field); \
((__reg) & ((__field).bit_mask)) >> \
((__field).bit_offset); \
})
#define rt2x00_set_field32(__reg, __field, __value) \
SET_FIELD(__reg,
struct rt2x00_field32, __field, __value)
#define rt2x00_get_field32(__reg, __field) \
GET_FIELD(__reg,
struct rt2x00_field32, __field)
#define rt2x00_set_field16(__reg, __field, __value) \
SET_FIELD(__reg,
struct rt2x00_field16, __field, __value)
#define rt2x00_get_field16(__reg, __field) \
GET_FIELD(__reg,
struct rt2x00_field16, __field)
#define rt2x00_set_field8(__reg, __field, __value) \
SET_FIELD(__reg,
struct rt2x00_field8, __field, __value)
#define rt2x00_get_field8(__reg, __field) \
GET_FIELD(__reg,
struct rt2x00_field8, __field)
#endif /* RT2X00REG_H */
