[RT2x00]: add driver for Ralink wireless hardware

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 943 insertions, 0 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.h b/drivers/net/wireless/rt2x00/rt2400pci.h
new file mode 100644
index 000000000000..ae22501f085d
--- /dev/null
+++ b/drivers/net/wireless/rt2x00/rt2400pci.h
@@ -0,0 +1,943 @@
+/*
+        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: rt2400pci
+        Abstract: Data structures and registers for the rt2400pci module.
+        Supported chipsets: RT2460.
+ */
+
+#ifndef RT2400PCI_H
+#define RT2400PCI_H
+
+/*
+ * RF chip defines.
+ */
+#define RF2420                          0x0000
+#define RF2421                          0x0001
+
+/*
+ * Signal information.
+ * Defaul offset is required for RSSI <-> dBm conversion.
+ */
+#define MAX_SIGNAL                      100
+#define MAX_RX_SSI                      -1
+#define DEFAULT_RSSI_OFFSET             100
+
+/*
+ * Register layout information.
+ */
+#define CSR_REG_BASE                    0x0000
+#define CSR_REG_SIZE                    0x014c
+#define EEPROM_BASE                     0x0000
+#define EEPROM_SIZE                     0x0100
+#define BBP_SIZE                        0x0020
+#define RF_SIZE                         0x0010
+
+/*
+ * Control/Status Registers(CSR).
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * CSR0: ASIC revision number.
+ */
+#define CSR0                            0x0000
+
+/*
+ * CSR1: System control register.
+ * SOFT_RESET: Software reset, 1: reset, 0: normal.
+ * BBP_RESET: Hardware reset, 1: reset, 0, release.
+ * HOST_READY: Host ready after initialization.
+ */
+#define CSR1                            0x0004
+#define CSR1_SOFT_RESET                 FIELD32(0x00000001)
+#define CSR1_BBP_RESET                  FIELD32(0x00000002)
+#define CSR1_HOST_READY                 FIELD32(0x00000004)
+
+/*
+ * CSR2: System admin status register (invalid).
+ */
+#define CSR2                            0x0008
+
+/*
+ * CSR3: STA MAC address register 0.
+ */
+#define CSR3                            0x000c
+#define CSR3_BYTE0                      FIELD32(0x000000ff)
+#define CSR3_BYTE1                      FIELD32(0x0000ff00)
+#define CSR3_BYTE2                      FIELD32(0x00ff0000)
+#define CSR3_BYTE3                      FIELD32(0xff000000)
+
+/*
+ * CSR4: STA MAC address register 1.
+ */
+#define CSR4                            0x0010
+#define CSR4_BYTE4                      FIELD32(0x000000ff)
+#define CSR4_BYTE5                      FIELD32(0x0000ff00)
+
+/*
+ * CSR5: BSSID register 0.
+ */
+#define CSR5                            0x0014
+#define CSR5_BYTE0                      FIELD32(0x000000ff)
+#define CSR5_BYTE1                      FIELD32(0x0000ff00)
+#define CSR5_BYTE2                      FIELD32(0x00ff0000)
+#define CSR5_BYTE3                      FIELD32(0xff000000)
+
+/*
+ * CSR6: BSSID register 1.
+ */
+#define CSR6                            0x0018
+#define CSR6_BYTE4                      FIELD32(0x000000ff)
+#define CSR6_BYTE5                      FIELD32(0x0000ff00)
+
+/*
+ * CSR7: Interrupt source register.
+ * Write 1 to clear interrupt.
+ * TBCN_EXPIRE: Beacon timer expired interrupt.
+ * TWAKE_EXPIRE: Wakeup timer expired interrupt.
+ * TATIMW_EXPIRE: Timer of atim window expired interrupt.
+ * TXDONE_TXRING: Tx ring transmit done interrupt.
+ * TXDONE_ATIMRING: Atim ring transmit done interrupt.
+ * TXDONE_PRIORING: Priority ring transmit done interrupt.
+ * RXDONE: Receive done interrupt.
+ */
+#define CSR7                            0x001c
+#define CSR7_TBCN_EXPIRE                FIELD32(0x00000001)
+#define CSR7_TWAKE_EXPIRE               FIELD32(0x00000002)
+#define CSR7_TATIMW_EXPIRE              FIELD32(0x00000004)
+#define CSR7_TXDONE_TXRING              FIELD32(0x00000008)
+#define CSR7_TXDONE_ATIMRING            FIELD32(0x00000010)
+#define CSR7_TXDONE_PRIORING            FIELD32(0x00000020)
+#define CSR7_RXDONE                     FIELD32(0x00000040)
+
+/*
+ * CSR8: Interrupt mask register.
+ * Write 1 to mask interrupt.
+ * TBCN_EXPIRE: Beacon timer expired interrupt.
+ * TWAKE_EXPIRE: Wakeup timer expired interrupt.
+ * TATIMW_EXPIRE: Timer of atim window expired interrupt.
+ * TXDONE_TXRING: Tx ring transmit done interrupt.
+ * TXDONE_ATIMRING: Atim ring transmit done interrupt.
+ * TXDONE_PRIORING: Priority ring transmit done interrupt.
+ * RXDONE: Receive done interrupt.
+ */
+#define CSR8                            0x0020
+#define CSR8_TBCN_EXPIRE                FIELD32(0x00000001)
+#define CSR8_TWAKE_EXPIRE               FIELD32(0x00000002)
+#define CSR8_TATIMW_EXPIRE              FIELD32(0x00000004)
+#define CSR8_TXDONE_TXRING              FIELD32(0x00000008)
+#define CSR8_TXDONE_ATIMRING            FIELD32(0x00000010)
+#define CSR8_TXDONE_PRIORING            FIELD32(0x00000020)
+#define CSR8_RXDONE                     FIELD32(0x00000040)
+
+/*
+ * CSR9: Maximum frame length register.
+ * MAX_FRAME_UNIT: Maximum frame length in 128b unit, default: 12.
+ */
+#define CSR9                            0x0024
+#define CSR9_MAX_FRAME_UNIT             FIELD32(0x00000f80)
+
+/*
+ * CSR11: Back-off control register.
+ * CWMIN: CWmin. Default cwmin is 31 (2^5 - 1).
+ * CWMAX: CWmax. Default cwmax is 1023 (2^10 - 1).
+ * SLOT_TIME: Slot time, default is 20us for 802.11b.
+ * LONG_RETRY: Long retry count.
+ * SHORT_RETRY: Short retry count.
+ */
+#define CSR11                           0x002c
+#define CSR11_CWMIN                     FIELD32(0x0000000f)
+#define CSR11_CWMAX                     FIELD32(0x000000f0)
+#define CSR11_SLOT_TIME                 FIELD32(0x00001f00)
+#define CSR11_LONG_RETRY                FIELD32(0x00ff0000)
+#define CSR11_SHORT_RETRY               FIELD32(0xff000000)
+
+/*
+ * CSR12: Synchronization configuration register 0.
+ * All units in 1/16 TU.
+ * BEACON_INTERVAL: Beacon interval, default is 100 TU.
+ * CFPMAX_DURATION: Cfp maximum duration, default is 100 TU.
+ */
+#define CSR12                           0x0030
+#define CSR12_BEACON_INTERVAL           FIELD32(0x0000ffff)
+#define CSR12_CFP_MAX_DURATION          FIELD32(0xffff0000)
+
+/*
+ * CSR13: Synchronization configuration register 1.
+ * All units in 1/16 TU.
+ * ATIMW_DURATION: Atim window duration.
+ * CFP_PERIOD: Cfp period, default is 0 TU.
+ */
+#define CSR13                           0x0034
+#define CSR13_ATIMW_DURATION            FIELD32(0x0000ffff)
+#define CSR13_CFP_PERIOD                FIELD32(0x00ff0000)
+
+/*
+ * CSR14: Synchronization control register.
+ * TSF_COUNT: Enable tsf auto counting.
+ * TSF_SYNC: Tsf sync, 0: disable, 1: infra, 2: ad-hoc/master mode.
+ * TBCN: Enable tbcn with reload value.
+ * TCFP: Enable tcfp & cfp / cp switching.
+ * TATIMW: Enable tatimw & atim window switching.
+ * BEACON_GEN: Enable beacon generator.
+ * CFP_COUNT_PRELOAD: Cfp count preload value.
+ * TBCM_PRELOAD: Tbcn preload value in units of 64us.
+ */
+#define CSR14                           0x0038
+#define CSR14_TSF_COUNT                 FIELD32(0x00000001)
+#define CSR14_TSF_SYNC                  FIELD32(0x00000006)
+#define CSR14_TBCN                      FIELD32(0x00000008)
+#define CSR14_TCFP                      FIELD32(0x00000010)
+#define CSR14_TATIMW                    FIELD32(0x00000020)
+#define CSR14_BEACON_GEN                FIELD32(0x00000040)
+#define CSR14_CFP_COUNT_PRELOAD         FIELD32(0x0000ff00)
+#define CSR14_TBCM_PRELOAD              FIELD32(0xffff0000)
+
+/*
+ * CSR15: Synchronization status register.
+ * CFP: ASIC is in contention-free period.
+ * ATIMW: ASIC is in ATIM window.
+ * BEACON_SENT: Beacon is send.
+ */
+#define CSR15                           0x003c
+#define CSR15_CFP                       FIELD32(0x00000001)
+#define CSR15_ATIMW                     FIELD32(0x00000002)
+#define CSR15_BEACON_SENT               FIELD32(0x00000004)
+
+/*
+ * CSR16: TSF timer register 0.
+ */
+#define CSR16                           0x0040
+#define CSR16_LOW_TSFTIMER              FIELD32(0xffffffff)
+
+/*
+ * CSR17: TSF timer register 1.
+ */
+#define CSR17                           0x0044
+#define CSR17_HIGH_TSFTIMER             FIELD32(0xffffffff)
+
+/*
+ * CSR18: IFS timer register 0.
+ * SIFS: Sifs, default is 10 us.
+ * PIFS: Pifs, default is 30 us.
+ */
+#define CSR18                           0x0048
+#define CSR18_SIFS                      FIELD32(0x0000ffff)
+#define CSR18_PIFS                      FIELD32(0xffff0000)
+
+/*
+ * CSR19: IFS timer register 1.
+ * DIFS: Difs, default is 50 us.
+ * EIFS: Eifs, default is 364 us.
+ */
+#define CSR19                           0x004c
+#define CSR19_DIFS                      FIELD32(0x0000ffff)
+#define CSR19_EIFS                      FIELD32(0xffff0000)
+
+/*
+ * CSR20: Wakeup timer register.
+ * DELAY_AFTER_TBCN: Delay after tbcn expired in units of 1/16 TU.
+ * TBCN_BEFORE_WAKEUP: Number of beacon before wakeup.
+ * AUTOWAKE: Enable auto wakeup / sleep mechanism.
+ */
+#define CSR20                           0x0050
+#define CSR20_DELAY_AFTER_TBCN          FIELD32(0x0000ffff)
+#define CSR20_TBCN_BEFORE_WAKEUP        FIELD32(0x00ff0000)
+#define CSR20_AUTOWAKE                  FIELD32(0x01000000)
+
+/*
+ * CSR21: EEPROM control register.
+ * RELOAD: Write 1 to reload eeprom content.
+ * TYPE_93C46: 1: 93c46, 0:93c66.
+ */
+#define CSR21                           0x0054
+#define CSR21_RELOAD                    FIELD32(0x00000001)
+#define CSR21_EEPROM_DATA_CLOCK         FIELD32(0x00000002)
+#define CSR21_EEPROM_CHIP_SELECT        FIELD32(0x00000004)
+#define CSR21_EEPROM_DATA_IN            FIELD32(0x00000008)
+#define CSR21_EEPROM_DATA_OUT           FIELD32(0x00000010)
+#define CSR21_TYPE_93C46                FIELD32(0x00000020)
+
+/*
+ * CSR22: CFP control register.
+ * CFP_DURATION_REMAIN: Cfp duration remain, in units of TU.
+ * RELOAD_CFP_DURATION: Write 1 to reload cfp duration remain.
+ */
+#define CSR22                           0x0058
+#define CSR22_CFP_DURATION_REMAIN       FIELD32(0x0000ffff)
+#define CSR22_RELOAD_CFP_DURATION       FIELD32(0x00010000)
+
+/*
+ * Transmit related CSRs.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * TXCSR0: TX Control Register.
+ * KICK_TX: Kick tx ring.
+ * KICK_ATIM: Kick atim ring.
+ * KICK_PRIO: Kick priority ring.
+ * ABORT: Abort all transmit related ring operation.
+ */
+#define TXCSR0                          0x0060
+#define TXCSR0_KICK_TX                  FIELD32(0x00000001)
+#define TXCSR0_KICK_ATIM                FIELD32(0x00000002)
+#define TXCSR0_KICK_PRIO                FIELD32(0x00000004)
+#define TXCSR0_ABORT                    FIELD32(0x00000008)
+
+/*
+ * TXCSR1: TX Configuration Register.
+ * ACK_TIMEOUT: Ack timeout, default = sifs + 2*slottime + acktime @ 1mbps.
+ * ACK_CONSUME_TIME: Ack consume time, default = sifs + acktime @ 1mbps.
+ * TSF_OFFSET: Insert tsf offset.
+ * AUTORESPONDER: Enable auto responder which include ack & cts.
+ */
+#define TXCSR1                          0x0064
+#define TXCSR1_ACK_TIMEOUT              FIELD32(0x000001ff)
+#define TXCSR1_ACK_CONSUME_TIME         FIELD32(0x0003fe00)
+#define TXCSR1_TSF_OFFSET               FIELD32(0x00fc0000)
+#define TXCSR1_AUTORESPONDER            FIELD32(0x01000000)
+
+/*
+ * TXCSR2: Tx descriptor configuration register.
+ * TXD_SIZE: Tx descriptor size, default is 48.
+ * NUM_TXD: Number of tx entries in ring.
+ * NUM_ATIM: Number of atim entries in ring.
+ * NUM_PRIO: Number of priority entries in ring.
+ */
+#define TXCSR2                          0x0068
+#define TXCSR2_TXD_SIZE                 FIELD32(0x000000ff)
+#define TXCSR2_NUM_TXD                  FIELD32(0x0000ff00)
+#define TXCSR2_NUM_ATIM                 FIELD32(0x00ff0000)
+#define TXCSR2_NUM_PRIO                 FIELD32(0xff000000)
+
+/*
+ * TXCSR3: TX Ring Base address register.
+ */
+#define TXCSR3                          0x006c
+#define TXCSR3_TX_RING_REGISTER         FIELD32(0xffffffff)
+
+/*
+ * TXCSR4: TX Atim Ring Base address register.
+ */
+#define TXCSR4                          0x0070
+#define TXCSR4_ATIM_RING_REGISTER       FIELD32(0xffffffff)
+
+/*
+ * TXCSR5: TX Prio Ring Base address register.
+ */
+#define TXCSR5                          0x0074
+#define TXCSR5_PRIO_RING_REGISTER       FIELD32(0xffffffff)
+
+/*
+ * TXCSR6: Beacon Base address register.
+ */
+#define TXCSR6                          0x0078
+#define TXCSR6_BEACON_RING_REGISTER     FIELD32(0xffffffff)
+
+/*
+ * TXCSR7: Auto responder control register.
+ * AR_POWERMANAGEMENT: Auto responder power management bit.
+ */
+#define TXCSR7                          0x007c
+#define TXCSR7_AR_POWERMANAGEMENT       FIELD32(0x00000001)
+
+/*
+ * Receive related CSRs.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * RXCSR0: RX Control Register.
+ * DISABLE_RX: Disable rx engine.
+ * DROP_CRC: Drop crc error.
+ * DROP_PHYSICAL: Drop physical error.
+ * DROP_CONTROL: Drop control frame.
+ * DROP_NOT_TO_ME: Drop not to me unicast frame.
+ * DROP_TODS: Drop frame tods bit is true.
+ * DROP_VERSION_ERROR: Drop version error frame.
+ * PASS_CRC: Pass all packets with crc attached.
+ */
+#define RXCSR0                          0x0080
+#define RXCSR0_DISABLE_RX               FIELD32(0x00000001)
+#define RXCSR0_DROP_CRC                 FIELD32(0x00000002)
+#define RXCSR0_DROP_PHYSICAL            FIELD32(0x00000004)
+#define RXCSR0_DROP_CONTROL             FIELD32(0x00000008)
+#define RXCSR0_DROP_NOT_TO_ME           FIELD32(0x00000010)
+#define RXCSR0_DROP_TODS                FIELD32(0x00000020)
+#define RXCSR0_DROP_VERSION_ERROR       FIELD32(0x00000040)
+#define RXCSR0_PASS_CRC                 FIELD32(0x00000080)
+
+/*
+ * RXCSR1: RX descriptor configuration register.
+ * RXD_SIZE: Rx descriptor size, default is 32b.
+ * NUM_RXD: Number of rx entries in ring.
+ */
+#define RXCSR1                          0x0084
+#define RXCSR1_RXD_SIZE                 FIELD32(0x000000ff)
+#define RXCSR1_NUM_RXD                  FIELD32(0x0000ff00)
+
+/*
+ * RXCSR2: RX Ring base address register.
+ */
+#define RXCSR2                          0x0088
+#define RXCSR2_RX_RING_REGISTER         FIELD32(0xffffffff)
+
+/*
+ * RXCSR3: BBP ID register for Rx operation.
+ * BBP_ID#: BBP register # id.
+ * BBP_ID#_VALID: BBP register # id is valid or not.
+ */
+#define RXCSR3                          0x0090
+#define RXCSR3_BBP_ID0                  FIELD32(0x0000007f)
+#define RXCSR3_BBP_ID0_VALID            FIELD32(0x00000080)
+#define RXCSR3_BBP_ID1                  FIELD32(0x00007f00)
+#define RXCSR3_BBP_ID1_VALID            FIELD32(0x00008000)
+#define RXCSR3_BBP_ID2                  FIELD32(0x007f0000)
+#define RXCSR3_BBP_ID2_VALID            FIELD32(0x00800000)
+#define RXCSR3_BBP_ID3                  FIELD32(0x7f000000)
+#define RXCSR3_BBP_ID3_VALID            FIELD32(0x80000000)
+
+/*
+ * RXCSR4: BBP ID register for Rx operation.
+ * BBP_ID#: BBP register # id.
+ * BBP_ID#_VALID: BBP register # id is valid or not.
+ */
+#define RXCSR4                          0x0094
+#define RXCSR4_BBP_ID4                  FIELD32(0x0000007f)
+#define RXCSR4_BBP_ID4_VALID            FIELD32(0x00000080)
+#define RXCSR4_BBP_ID5                  FIELD32(0x00007f00)
+#define RXCSR4_BBP_ID5_VALID            FIELD32(0x00008000)
+
+/*
+ * ARCSR0: Auto Responder PLCP config register 0.
+ * ARCSR0_AR_BBP_DATA#: Auto responder BBP register # data.
+ * ARCSR0_AR_BBP_ID#: Auto responder BBP register # Id.
+ */
+#define ARCSR0                          0x0098
+#define ARCSR0_AR_BBP_DATA0             FIELD32(0x000000ff)
+#define ARCSR0_AR_BBP_ID0               FIELD32(0x0000ff00)
+#define ARCSR0_AR_BBP_DATA1             FIELD32(0x00ff0000)
+#define ARCSR0_AR_BBP_ID1               FIELD32(0xff000000)
+
+/*
+ * ARCSR1: Auto Responder PLCP config register 1.
+ * ARCSR0_AR_BBP_DATA#: Auto responder BBP register # data.
+ * ARCSR0_AR_BBP_ID#: Auto responder BBP register # Id.
+ */
+#define ARCSR1                          0x009c
+#define ARCSR1_AR_BBP_DATA2             FIELD32(0x000000ff)
+#define ARCSR1_AR_BBP_ID2               FIELD32(0x0000ff00)
+#define ARCSR1_AR_BBP_DATA3             FIELD32(0x00ff0000)
+#define ARCSR1_AR_BBP_ID3               FIELD32(0xff000000)
+
+/*
+ * Miscellaneous Registers.
+ * Some values are set in TU, whereas 1 TU == 1024 us.
+ */
+
+/*
+ * PCICSR: PCI control register.
+ * BIG_ENDIAN: 1: big endian, 0: little endian.
+ * RX_TRESHOLD: Rx threshold in dw to start pci access
+ * 0: 16dw (default), 1: 8dw, 2: 4dw, 3: 32dw.
+ * TX_TRESHOLD: Tx threshold in dw to start pci access
+ * 0: 0dw (default), 1: 1dw, 2: 4dw, 3: forward.
+ * BURST_LENTH: Pci burst length 0: 4dw (default, 1: 8dw, 2: 16dw, 3:32dw.
+ * ENABLE_CLK: Enable clk_run, pci clock can't going down to non-operational.
+ */
+#define PCICSR                          0x008c
+#define PCICSR_BIG_ENDIAN               FIELD32(0x00000001)
+#define PCICSR_RX_TRESHOLD              FIELD32(0x00000006)
+#define PCICSR_TX_TRESHOLD              FIELD32(0x00000018)
+#define PCICSR_BURST_LENTH              FIELD32(0x00000060)
+#define PCICSR_ENABLE_CLK               FIELD32(0x00000080)
+
+/*
+ * CNT0: FCS error count.
+ * FCS_ERROR: FCS error count, cleared when read.
+ */
+#define CNT0                            0x00a0
+#define CNT0_FCS_ERROR                  FIELD32(0x0000ffff)
+
+/*
+ * Statistic Register.
+ * CNT1: PLCP error count.
+ * CNT2: Long error count.
+ * CNT3: CCA false alarm count.
+ * CNT4: Rx FIFO overflow count.
+ * CNT5: Tx FIFO underrun count.
+ */
+#define TIMECSR2                        0x00a8
+#define CNT1                            0x00ac
+#define CNT2                            0x00b0
+#define TIMECSR3                        0x00b4
+#define CNT3                            0x00b8
+#define CNT4                            0x00bc
+#define CNT5                            0x00c0
+
+/*
+ * Baseband Control Register.
+ */
+
+/*
+ * PWRCSR0: Power mode configuration register.
+ */
+#define PWRCSR0                         0x00c4
+
+/*
+ * Power state transition time registers.
+ */
+#define PSCSR0                          0x00c8
+#define PSCSR1                          0x00cc
+#define PSCSR2                          0x00d0
+#define PSCSR3                          0x00d4
+
+/*
+ * PWRCSR1: Manual power control / status register.
+ * Allowed state: 0 deep_sleep, 1: sleep, 2: standby, 3: awake.
+ * SET_STATE: Set state. Write 1 to trigger, self cleared.
+ * BBP_DESIRE_STATE: BBP desired state.
+ * RF_DESIRE_STATE: RF desired state.
+ * BBP_CURR_STATE: BBP current state.
+ * RF_CURR_STATE: RF current state.
+ * PUT_TO_SLEEP: Put to sleep. Write 1 to trigger, self cleared.
+ */
+#define PWRCSR1                         0x00d8
+#define PWRCSR1_SET_STATE               FIELD32(0x00000001)
+#define PWRCSR1_BBP_DESIRE_STATE        FIELD32(0x00000006)
+#define PWRCSR1_RF_DESIRE_STATE         FIELD32(0x00000018)
+#define PWRCSR1_BBP_CURR_STATE          FIELD32(0x00000060)
+#define PWRCSR1_RF_CURR_STATE           FIELD32(0x00000180)
+#define PWRCSR1_PUT_TO_SLEEP            FIELD32(0x00000200)
+
+/*
+ * TIMECSR: Timer control register.
+ * US_COUNT: 1 us timer count in units of clock cycles.
+ * US_64_COUNT: 64 us timer count in units of 1 us timer.
+ * BEACON_EXPECT: Beacon expect window.
+ */
+#define TIMECSR                         0x00dc
+#define TIMECSR_US_COUNT                FIELD32(0x000000ff)
+#define TIMECSR_US_64_COUNT             FIELD32(0x0000ff00)
+#define TIMECSR_BEACON_EXPECT           FIELD32(0x00070000)
+
+/*
+ * MACCSR0: MAC configuration register 0.
+ */
+#define MACCSR0                         0x00e0
+
+/*
+ * MACCSR1: MAC configuration register 1.
+ * KICK_RX: Kick one-shot rx in one-shot rx mode.
+ * ONESHOT_RXMODE: Enable one-shot rx mode for debugging.
+ * BBPRX_RESET_MODE: Ralink bbp rx reset mode.
+ * AUTO_TXBBP: Auto tx logic access bbp control register.
+ * AUTO_RXBBP: Auto rx logic access bbp control register.
+ * LOOPBACK: Loopback mode. 0: normal, 1: internal, 2: external, 3:rsvd.
+ * INTERSIL_IF: Intersil if calibration pin.
+ */
+#define MACCSR1                         0x00e4
+#define MACCSR1_KICK_RX                 FIELD32(0x00000001)
+#define MACCSR1_ONESHOT_RXMODE          FIELD32(0x00000002)
+#define MACCSR1_BBPRX_RESET_MODE        FIELD32(0x00000004)
+#define MACCSR1_AUTO_TXBBP              FIELD32(0x00000008)
+#define MACCSR1_AUTO_RXBBP              FIELD32(0x00000010)
+#define MACCSR1_LOOPBACK                FIELD32(0x00000060)
+#define MACCSR1_INTERSIL_IF             FIELD32(0x00000080)
+
+/*
+ * RALINKCSR: Ralink Rx auto-reset BBCR.
+ * AR_BBP_DATA#: Auto reset BBP register # data.
+ * AR_BBP_ID#: Auto reset BBP register # id.
+ */
+#define RALINKCSR                       0x00e8
+#define RALINKCSR_AR_BBP_DATA0          FIELD32(0x000000ff)
+#define RALINKCSR_AR_BBP_ID0            FIELD32(0x0000ff00)
+#define RALINKCSR_AR_BBP_DATA1          FIELD32(0x00ff0000)
+#define RALINKCSR_AR_BBP_ID1            FIELD32(0xff000000)
+
+/*
+ * BCNCSR: Beacon interval control register.
+ * CHANGE: Write one to change beacon interval.
+ * DELTATIME: The delta time value.
+ * NUM_BEACON: Number of beacon according to mode.
+ * MODE: Please refer to asic specs.
+ * PLUS: Plus or minus delta time value.
+ */
+#define BCNCSR                          0x00ec
+#define BCNCSR_CHANGE                   FIELD32(0x00000001)
+#define BCNCSR_DELTATIME                FIELD32(0x0000001e)
+#define BCNCSR_NUM_BEACON               FIELD32(0x00001fe0)
+#define BCNCSR_MODE                     FIELD32(0x00006000)
+#define BCNCSR_PLUS                     FIELD32(0x00008000)
+
+/*
+ * BBP / RF / IF Control Register.
+ */
+
+/*
+ * BBPCSR: BBP serial control register.
+ * VALUE: Register value to program into BBP.
+ * REGNUM: Selected BBP register.
+ * BUSY: 1: asic is busy execute BBP programming.
+ * WRITE_CONTROL: 1: write BBP, 0: read BBP.
+ */
+#define BBPCSR                          0x00f0
+#define BBPCSR_VALUE                    FIELD32(0x000000ff)
+#define BBPCSR_REGNUM                   FIELD32(0x00007f00)
+#define BBPCSR_BUSY                     FIELD32(0x00008000)
+#define BBPCSR_WRITE_CONTROL            FIELD32(0x00010000)
+
+/*
+ * RFCSR: RF serial control register.
+ * VALUE: Register value + id to program into rf/if.
+ * NUMBER_OF_BITS: Number of bits used in value (i:20, rfmd:22).
+ * IF_SELECT: Chip to program: 0: rf, 1: if.
+ * PLL_LD: Rf pll_ld status.
+ * BUSY: 1: asic is busy execute rf programming.
+ */
+#define RFCSR                           0x00f4
+#define RFCSR_VALUE                     FIELD32(0x00ffffff)
+#define RFCSR_NUMBER_OF_BITS            FIELD32(0x1f000000)
+#define RFCSR_IF_SELECT                 FIELD32(0x20000000)
+#define RFCSR_PLL_LD                    FIELD32(0x40000000)
+#define RFCSR_BUSY                      FIELD32(0x80000000)
+
+/*
+ * LEDCSR: LED control register.
+ * ON_PERIOD: On period, default 70ms.
+ * OFF_PERIOD: Off period, default 30ms.
+ * LINK: 0: linkoff, 1: linkup.
+ * ACTIVITY: 0: idle, 1: active.
+ */
+#define LEDCSR                          0x00f8
+#define LEDCSR_ON_PERIOD                FIELD32(0x000000ff)
+#define LEDCSR_OFF_PERIOD               FIELD32(0x0000ff00)
+#define LEDCSR_LINK                     FIELD32(0x00010000)
+#define LEDCSR_ACTIVITY                 FIELD32(0x00020000)
+
+/*
+ * ASIC pointer information.
+ * RXPTR: Current RX ring address.
+ * TXPTR: Current Tx ring address.
+ * PRIPTR: Current Priority ring address.
+ * ATIMPTR: Current ATIM ring address.
+ */
+#define RXPTR                           0x0100
+#define TXPTR                           0x0104
+#define PRIPTR                          0x0108
+#define ATIMPTR                         0x010c
+
+/*
+ * GPIO and others.
+ */
+
+/*
+ * GPIOCSR: GPIO control register.
+ */
+#define GPIOCSR                         0x0120
+#define GPIOCSR_BIT0                    FIELD32(0x00000001)
+#define GPIOCSR_BIT1                    FIELD32(0x00000002)
+#define GPIOCSR_BIT2                    FIELD32(0x00000004)
+#define GPIOCSR_BIT3                    FIELD32(0x00000008)
+#define GPIOCSR_BIT4                    FIELD32(0x00000010)
+#define GPIOCSR_BIT5                    FIELD32(0x00000020)
+#define GPIOCSR_BIT6                    FIELD32(0x00000040)
+#define GPIOCSR_BIT7                    FIELD32(0x00000080)
+
+/*
+ * BBPPCSR: BBP Pin control register.
+ */
+#define BBPPCSR                         0x0124
+
+/*
+ * BCNCSR1: Tx BEACON offset time control register.
+ * PRELOAD: Beacon timer offset in units of usec.
+ */
+#define BCNCSR1                         0x0130
+#define BCNCSR1_PRELOAD                 FIELD32(0x0000ffff)
+
+/*
+ * MACCSR2: TX_PE to RX_PE turn-around time control register
+ * DELAY: RX_PE low width, in units of pci clock cycle.
+ */
+#define MACCSR2                         0x0134
+#define MACCSR2_DELAY                   FIELD32(0x000000ff)
+
+/*
+ * ARCSR2: 1 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR2                          0x013c
+#define ARCSR2_SIGNAL                   FIELD32(0x000000ff)
+#define ARCSR2_SERVICE                  FIELD32(0x0000ff00)
+#define ARCSR2_LENGTH_LOW               FIELD32(0x00ff0000)
+#define ARCSR2_LENGTH                   FIELD32(0xffff0000)
+
+/*
+ * ARCSR3: 2 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR3                          0x0140
+#define ARCSR3_SIGNAL                   FIELD32(0x000000ff)
+#define ARCSR3_SERVICE                  FIELD32(0x0000ff00)
+#define ARCSR3_LENGTH                   FIELD32(0xffff0000)
+
+/*
+ * ARCSR4: 5.5 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR4                          0x0144
+#define ARCSR4_SIGNAL                   FIELD32(0x000000ff)
+#define ARCSR4_SERVICE                  FIELD32(0x0000ff00)
+#define ARCSR4_LENGTH                   FIELD32(0xffff0000)
+
+/*
+ * ARCSR5: 11 Mbps ACK/CTS PLCP.
+ */
+#define ARCSR5                          0x0148
+#define ARCSR5_SIGNAL                   FIELD32(0x000000ff)
+#define ARCSR5_SERVICE                  FIELD32(0x0000ff00)
+#define ARCSR5_LENGTH                   FIELD32(0xffff0000)
+
+/*
+ * BBP registers.
+ * The wordsize of the BBP is 8 bits.
+ */
+
+/*
+ * R1: TX antenna control
+ */
+#define BBP_R1_TX_ANTENNA               FIELD8(0x03)
+
+/*
+ * R4: RX antenna control
+ */
+#define BBP_R4_RX_ANTENNA               FIELD8(0x06)
+
+/*
+ * RF registers
+ */
+
+/*
+ * RF 1
+ */
+#define RF1_TUNER                       FIELD32(0x00020000)
+
+/*
+ * RF 3
+ */
+#define RF3_TUNER                       FIELD32(0x00000100)
+#define RF3_TXPOWER                     FIELD32(0x00003e00)
+
+/*
+ * EEPROM content.
+ * The wordsize of the EEPROM is 16 bits.
+ */
+
+/*
+ * HW MAC address.
+ */
+#define EEPROM_MAC_ADDR_0               0x0002
+#define EEPROM_MAC_ADDR_BYTE0           FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE1           FIELD16(0xff00)
+#define EEPROM_MAC_ADDR1                0x0003
+#define EEPROM_MAC_ADDR_BYTE2           FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE3           FIELD16(0xff00)
+#define EEPROM_MAC_ADDR_2               0x0004
+#define EEPROM_MAC_ADDR_BYTE4           FIELD16(0x00ff)
+#define EEPROM_MAC_ADDR_BYTE5           FIELD16(0xff00)
+
+/*
+ * EEPROM antenna.
+ * ANTENNA_NUM: Number of antenna's.
+ * TX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * RX_DEFAULT: Default antenna 0: diversity, 1: A, 2: B.
+ * RF_TYPE: Rf_type of this adapter.
+ * LED_MODE: 0: default, 1: TX/RX activity,2: Single (ignore link), 3: rsvd.
+ * RX_AGCVGC: 0: disable, 1:enable BBP R13 tuning.
+ * HARDWARE_RADIO: 1: Hardware controlled radio. Read GPIO0.
+ */
+#define EEPROM_ANTENNA                  0x0b
+#define EEPROM_ANTENNA_NUM              FIELD16(0x0003)
+#define EEPROM_ANTENNA_TX_DEFAULT       FIELD16(0x000c)
+#define EEPROM_ANTENNA_RX_DEFAULT       FIELD16(0x0030)
+#define EEPROM_ANTENNA_RF_TYPE          FIELD16(0x0040)
+#define EEPROM_ANTENNA_LED_MODE         FIELD16(0x0180)
+#define EEPROM_ANTENNA_RX_AGCVGC_TUNING FIELD16(0x0200)
+#define EEPROM_ANTENNA_HARDWARE_RADIO   FIELD16(0x0400)
+
+/*
+ * EEPROM BBP.
+ */
+#define EEPROM_BBP_START                0x0c
+#define EEPROM_BBP_SIZE                 7
+#define EEPROM_BBP_VALUE                FIELD16(0x00ff)
+#define EEPROM_BBP_REG_ID               FIELD16(0xff00)
+
+/*
+ * EEPROM TXPOWER
+ */
+#define EEPROM_TXPOWER_START            0x13
+#define EEPROM_TXPOWER_SIZE             7
+#define EEPROM_TXPOWER_1                FIELD16(0x00ff)
+#define EEPROM_TXPOWER_2                FIELD16(0xff00)
+
+/*
+ * DMA descriptor defines.
+ */
+#define TXD_DESC_SIZE                   ( 8 * sizeof(struct data_desc) )
+#define RXD_DESC_SIZE                   ( 8 * sizeof(struct data_desc) )
+
+/*
+ * TX descriptor format for TX, PRIO, ATIM and Beacon Ring.
+ */
+
+/*
+ * Word0
+ */
+#define TXD_W0_OWNER_NIC                FIELD32(0x00000001)
+#define TXD_W0_VALID                    FIELD32(0x00000002)
+#define TXD_W0_RESULT                   FIELD32(0x0000001c)
+#define TXD_W0_RETRY_COUNT              FIELD32(0x000000e0)
+#define TXD_W0_MORE_FRAG                FIELD32(0x00000100)
+#define TXD_W0_ACK                      FIELD32(0x00000200)
+#define TXD_W0_TIMESTAMP                FIELD32(0x00000400)
+#define TXD_W0_RTS                      FIELD32(0x00000800)
+#define TXD_W0_IFS                      FIELD32(0x00006000)
+#define TXD_W0_RETRY_MODE               FIELD32(0x00008000)
+#define TXD_W0_AGC                      FIELD32(0x00ff0000)
+#define TXD_W0_R2                       FIELD32(0xff000000)
+
+/*
+ * Word1
+ */
+#define TXD_W1_BUFFER_ADDRESS           FIELD32(0xffffffff)
+
+/*
+ * Word2
+ */
+#define TXD_W2_BUFFER_LENGTH            FIELD32(0x0000ffff)
+#define TXD_W2_DATABYTE_COUNT           FIELD32(0xffff0000)
+
+/*
+ * Word3 & 4: PLCP information
+ */
+#define TXD_W3_PLCP_SIGNAL              FIELD32(0x0000ffff)
+#define TXD_W3_PLCP_SERVICE             FIELD32(0xffff0000)
+#define TXD_W4_PLCP_LENGTH_LOW          FIELD32(0x0000ffff)
+#define TXD_W4_PLCP_LENGTH_HIGH         FIELD32(0xffff0000)
+
+/*
+ * Word5
+ */
+#define TXD_W5_BBCR4                    FIELD32(0x0000ffff)
+#define TXD_W5_AGC_REG                  FIELD32(0x007f0000)
+#define TXD_W5_AGC_REG_VALID            FIELD32(0x00800000)
+#define TXD_W5_XXX_REG                  FIELD32(0x7f000000)
+#define TXD_W5_XXX_REG_VALID            FIELD32(0x80000000)
+
+/*
+ * Word6
+ */
+#define TXD_W6_SK_BUFF                  FIELD32(0xffffffff)
+
+/*
+ * Word7
+ */
+#define TXD_W7_RESERVED                 FIELD32(0xffffffff)
+
+/*
+ * RX descriptor format for RX Ring.
+ */
+
+/*
+ * Word0
+ */
+#define RXD_W0_OWNER_NIC                FIELD32(0x00000001)
+#define RXD_W0_UNICAST_TO_ME            FIELD32(0x00000002)
+#define RXD_W0_MULTICAST                FIELD32(0x00000004)
+#define RXD_W0_BROADCAST                FIELD32(0x00000008)
+#define RXD_W0_MY_BSS                   FIELD32(0x00000010)
+#define RXD_W0_CRC_ERROR                FIELD32(0x00000020)
+#define RXD_W0_PHYSICAL_ERROR           FIELD32(0x00000080)
+#define RXD_W0_DATABYTE_COUNT           FIELD32(0xffff0000)
+
+/*
+ * Word1
+ */
+#define RXD_W1_BUFFER_ADDRESS           FIELD32(0xffffffff)
+
+/*
+ * Word2
+ */
+#define RXD_W2_BUFFER_LENGTH            FIELD32(0x0000ffff)
+#define RXD_W2_SIGNAL                   FIELD32(0x00ff0000)
+#define RXD_W2_RSSI                     FIELD32(0xff000000)
+
+/*
+ * Word3
+ */
+#define RXD_W3_BBR2                     FIELD32(0x000000ff)
+#define RXD_W3_BBR3                     FIELD32(0x0000ff00)
+#define RXD_W3_BBR4                     FIELD32(0x00ff0000)
+#define RXD_W3_BBR5                     FIELD32(0xff000000)
+
+/*
+ * Word4
+ */
+#define RXD_W4_RX_END_TIME              FIELD32(0xffffffff)
+
+/*
+ * Word5 & 6 & 7: Reserved
+ */
+#define RXD_W5_RESERVED                 FIELD32(0xffffffff)
+#define RXD_W6_RESERVED                 FIELD32(0xffffffff)
+#define RXD_W7_RESERVED                 FIELD32(0xffffffff)
+
+/*
+ * Macro's for converting txpower from EEPROM to dscape value
+ * and from dscape value to register value.
+ * NOTE: Logics in rt2400pci for txpower are reversed
+ * compared to the other rt2x00 drivers. A higher txpower
+ * value means that the txpower must be lowered. This is
+ * important when converting the value coming from the
+ * dscape stack to the rt2400 acceptable value.
+ */
+#define MIN_TXPOWER     31
+#define MAX_TXPOWER     62
+#define DEFAULT_TXPOWER 39
+
+#define TXPOWER_FROM_DEV(__txpower)                                     \
+({                                                                      \
+        ((__txpower) > MAX_TXPOWER) ? DEFAULT_TXPOWER - MIN_TXPOWER :   \
+        ((__txpower) < MIN_TXPOWER) ? DEFAULT_TXPOWER - MIN_TXPOWER :   \
+        (((__txpower) - MAX_TXPOWER) + MIN_TXPOWER);                    \
+})
+
+#define TXPOWER_TO_DEV(__txpower)                       \
+({                                                      \
+        (__txpower) += MIN_TXPOWER;                     \
+        ((__txpower) <= MIN_TXPOWER) ? MAX_TXPOWER :    \
+        (((__txpower) >= MAX_TXPOWER) ? MIN_TXPOWER :   \
+        (MAX_TXPOWER - ((__txpower) - MIN_TXPOWER)));   \
+})
+
+#endif /* RT2400PCI_H */