diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00reg.h')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00reg.h | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00reg.h b/drivers/net/wireless/rt2x00/rt2x00reg.h new file mode 100644 index 00000000000..7927d5f7bcc --- /dev/null +++ b/drivers/net/wireless/rt2x00/rt2x00reg.h @@ -0,0 +1,283 @@ +/* + Copyright (C) 2004 - 2007 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, +}; + +/* + * 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 */ |