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kernel-fxtec-pro1x/drivers/net/wireless/ath/ar9170/hw.h
Christian Lamparter 9b9c5aaeed ar9170: xmit code revamp 
This patch is a back-port from aggregation testing code.

In the past, we didn't limit the amount of active tx urbs.
However, ar9170 only has a limited buffer reserved for
pending data frames.

This wasn't much of a problem with the slower 802.11b/g.
We simply stopped the full queue and moved on to something different
in the mean time. But - as you guessed it -  this simple approach
stands in way for a decent aggregation implementation.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-06-10 13:27:54 -04:00

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/*
* Atheros AR9170 driver
*
* Hardware-specific definitions
*
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
*
* 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; see the file COPYING. If not, see
* http://www.gnu.org/licenses/.
*
* This file incorporates work covered by the following copyright and
* permission notice:
* Copyright (c) 2007-2008 Atheros Communications, Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef __AR9170_HW_H
#define __AR9170_HW_H
#define AR9170_MAX_CMD_LEN 64
enum ar9170_cmd {
AR9170_CMD_RREG = 0x00,
AR9170_CMD_WREG = 0x01,
AR9170_CMD_RMEM = 0x02,
AR9170_CMD_WMEM = 0x03,
AR9170_CMD_BITAND = 0x04,
AR9170_CMD_BITOR = 0x05,
AR9170_CMD_EKEY = 0x28,
AR9170_CMD_DKEY = 0x29,
AR9170_CMD_FREQUENCY = 0x30,
AR9170_CMD_RF_INIT = 0x31,
AR9170_CMD_SYNTH = 0x32,
AR9170_CMD_FREQ_START = 0x33,
AR9170_CMD_ECHO = 0x80,
AR9170_CMD_TALLY = 0x81,
AR9170_CMD_TALLY_APD = 0x82,
AR9170_CMD_CONFIG = 0x83,
AR9170_CMD_RESET = 0x90,
AR9170_CMD_DKRESET = 0x91,
AR9170_CMD_DKTX_STATUS = 0x92,
AR9170_CMD_FDC = 0xA0,
AR9170_CMD_WREEPROM = 0xB0,
AR9170_CMD_WFLASH = 0xB0,
AR9170_CMD_FLASH_ERASE = 0xB1,
AR9170_CMD_FLASH_PROG = 0xB2,
AR9170_CMD_FLASH_CHKSUM = 0xB3,
AR9170_CMD_FLASH_READ = 0xB4,
AR9170_CMD_FW_DL_INIT = 0xB5,
AR9170_CMD_MEM_WREEPROM = 0xBB,
};
/* endpoints */
#define AR9170_EP_TX 1
#define AR9170_EP_RX 2
#define AR9170_EP_IRQ 3
#define AR9170_EP_CMD 4
#define AR9170_EEPROM_START 0x1600
#define AR9170_GPIO_REG_BASE 0x1d0100
#define AR9170_GPIO_REG_PORT_TYPE AR9170_GPIO_REG_BASE
#define AR9170_GPIO_REG_DATA (AR9170_GPIO_REG_BASE + 4)
#define AR9170_NUM_LEDS 2
#define AR9170_USB_REG_BASE 0x1e1000
#define AR9170_USB_REG_DMA_CTL (AR9170_USB_REG_BASE + 0x108)
#define AR9170_DMA_CTL_ENABLE_TO_DEVICE 0x1
#define AR9170_DMA_CTL_ENABLE_FROM_DEVICE 0x2
#define AR9170_DMA_CTL_HIGH_SPEED 0x4
#define AR9170_DMA_CTL_PACKET_MODE 0x8
#define AR9170_USB_REG_MAX_AGG_UPLOAD (AR9170_USB_REG_BASE + 0x110)
#define AR9170_USB_REG_UPLOAD_TIME_CTL (AR9170_USB_REG_BASE + 0x114)
#define AR9170_MAC_REG_BASE 0x1c3000
#define AR9170_MAC_REG_TSF_L (AR9170_MAC_REG_BASE + 0x514)
#define AR9170_MAC_REG_TSF_H (AR9170_MAC_REG_BASE + 0x518)
#define AR9170_MAC_REG_ATIM_WINDOW (AR9170_MAC_REG_BASE + 0x51C)
#define AR9170_MAC_REG_BCN_PERIOD (AR9170_MAC_REG_BASE + 0x520)
#define AR9170_MAC_REG_PRETBTT (AR9170_MAC_REG_BASE + 0x524)
#define AR9170_MAC_REG_MAC_ADDR_L (AR9170_MAC_REG_BASE + 0x610)
#define AR9170_MAC_REG_MAC_ADDR_H (AR9170_MAC_REG_BASE + 0x614)
#define AR9170_MAC_REG_BSSID_L (AR9170_MAC_REG_BASE + 0x618)
#define AR9170_MAC_REG_BSSID_H (AR9170_MAC_REG_BASE + 0x61c)
#define AR9170_MAC_REG_GROUP_HASH_TBL_L (AR9170_MAC_REG_BASE + 0x624)
#define AR9170_MAC_REG_GROUP_HASH_TBL_H (AR9170_MAC_REG_BASE + 0x628)
#define AR9170_MAC_REG_RX_TIMEOUT (AR9170_MAC_REG_BASE + 0x62C)
#define AR9170_MAC_REG_BASIC_RATE (AR9170_MAC_REG_BASE + 0x630)
#define AR9170_MAC_REG_MANDATORY_RATE (AR9170_MAC_REG_BASE + 0x634)
#define AR9170_MAC_REG_RTS_CTS_RATE (AR9170_MAC_REG_BASE + 0x638)
#define AR9170_MAC_REG_BACKOFF_PROTECT (AR9170_MAC_REG_BASE + 0x63c)
#define AR9170_MAC_REG_RX_THRESHOLD (AR9170_MAC_REG_BASE + 0x640)
#define AR9170_MAC_REG_RX_PE_DELAY (AR9170_MAC_REG_BASE + 0x64C)
#define AR9170_MAC_REG_DYNAMIC_SIFS_ACK (AR9170_MAC_REG_BASE + 0x658)
#define AR9170_MAC_REG_SNIFFER (AR9170_MAC_REG_BASE + 0x674)
#define AR9170_MAC_REG_SNIFFER_ENABLE_PROMISC BIT(0)
#define AR9170_MAC_REG_SNIFFER_DEFAULTS 0x02000000
#define AR9170_MAC_REG_ENCRYPTION (AR9170_MAC_REG_BASE + 0x678)
#define AR9170_MAC_REG_ENCRYPTION_RX_SOFTWARE BIT(3)
#define AR9170_MAC_REG_ENCRYPTION_DEFAULTS 0x70
#define AR9170_MAC_REG_MISC_680 (AR9170_MAC_REG_BASE + 0x680)
#define AR9170_MAC_REG_TX_UNDERRUN (AR9170_MAC_REG_BASE + 0x688)
#define AR9170_MAC_REG_FRAMETYPE_FILTER (AR9170_MAC_REG_BASE + 0x68c)
#define AR9170_MAC_REG_FTF_ASSOC_REQ BIT(0)
#define AR9170_MAC_REG_FTF_ASSOC_RESP BIT(1)
#define AR9170_MAC_REG_FTF_REASSOC_REQ BIT(2)
#define AR9170_MAC_REG_FTF_REASSOC_RESP BIT(3)
#define AR9170_MAC_REG_FTF_PRB_REQ BIT(4)
#define AR9170_MAC_REG_FTF_PRB_RESP BIT(5)
#define AR9170_MAC_REG_FTF_BIT6 BIT(6)
#define AR9170_MAC_REG_FTF_BIT7 BIT(7)
#define AR9170_MAC_REG_FTF_BEACON BIT(8)
#define AR9170_MAC_REG_FTF_ATIM BIT(9)
#define AR9170_MAC_REG_FTF_DEASSOC BIT(10)
#define AR9170_MAC_REG_FTF_AUTH BIT(11)
#define AR9170_MAC_REG_FTF_DEAUTH BIT(12)
#define AR9170_MAC_REG_FTF_BIT13 BIT(13)
#define AR9170_MAC_REG_FTF_BIT14 BIT(14)
#define AR9170_MAC_REG_FTF_BIT15 BIT(15)
#define AR9170_MAC_REG_FTF_BAR BIT(24)
#define AR9170_MAC_REG_FTF_BIT25 BIT(25)
#define AR9170_MAC_REG_FTF_PSPOLL BIT(26)
#define AR9170_MAC_REG_FTF_RTS BIT(27)
#define AR9170_MAC_REG_FTF_CTS BIT(28)
#define AR9170_MAC_REG_FTF_ACK BIT(29)
#define AR9170_MAC_REG_FTF_CFE BIT(30)
#define AR9170_MAC_REG_FTF_CFE_ACK BIT(31)
#define AR9170_MAC_REG_FTF_DEFAULTS 0x0500ffff
#define AR9170_MAC_REG_FTF_MONITOR 0xfd00ffff
#define AR9170_MAC_REG_RX_TOTAL (AR9170_MAC_REG_BASE + 0x6A0)
#define AR9170_MAC_REG_RX_CRC32 (AR9170_MAC_REG_BASE + 0x6A4)
#define AR9170_MAC_REG_RX_CRC16 (AR9170_MAC_REG_BASE + 0x6A8)
#define AR9170_MAC_REG_RX_ERR_DECRYPTION_UNI (AR9170_MAC_REG_BASE + 0x6AC)
#define AR9170_MAC_REG_RX_OVERRUN (AR9170_MAC_REG_BASE + 0x6B0)
#define AR9170_MAC_REG_RX_ERR_DECRYPTION_MUL (AR9170_MAC_REG_BASE + 0x6BC)
#define AR9170_MAC_REG_TX_RETRY (AR9170_MAC_REG_BASE + 0x6CC)
#define AR9170_MAC_REG_TX_TOTAL (AR9170_MAC_REG_BASE + 0x6F4)
#define AR9170_MAC_REG_ACK_EXTENSION (AR9170_MAC_REG_BASE + 0x690)
#define AR9170_MAC_REG_EIFS_AND_SIFS (AR9170_MAC_REG_BASE + 0x698)
#define AR9170_MAC_REG_SLOT_TIME (AR9170_MAC_REG_BASE + 0x6F0)
#define AR9170_MAC_REG_POWERMANAGEMENT (AR9170_MAC_REG_BASE + 0x700)
#define AR9170_MAC_REG_POWERMGT_IBSS 0xe0
#define AR9170_MAC_REG_POWERMGT_AP 0xa1
#define AR9170_MAC_REG_POWERMGT_STA 0x2
#define AR9170_MAC_REG_POWERMGT_AP_WDS 0x3
#define AR9170_MAC_REG_POWERMGT_DEFAULTS (0xf << 24)
#define AR9170_MAC_REG_ROLL_CALL_TBL_L (AR9170_MAC_REG_BASE + 0x704)
#define AR9170_MAC_REG_ROLL_CALL_TBL_H (AR9170_MAC_REG_BASE + 0x708)
#define AR9170_MAC_REG_AC0_CW (AR9170_MAC_REG_BASE + 0xB00)
#define AR9170_MAC_REG_AC1_CW (AR9170_MAC_REG_BASE + 0xB04)
#define AR9170_MAC_REG_AC2_CW (AR9170_MAC_REG_BASE + 0xB08)
#define AR9170_MAC_REG_AC3_CW (AR9170_MAC_REG_BASE + 0xB0C)
#define AR9170_MAC_REG_AC4_CW (AR9170_MAC_REG_BASE + 0xB10)
#define AR9170_MAC_REG_AC1_AC0_AIFS (AR9170_MAC_REG_BASE + 0xB14)
#define AR9170_MAC_REG_AC3_AC2_AIFS (AR9170_MAC_REG_BASE + 0xB18)
#define AR9170_MAC_REG_RETRY_MAX (AR9170_MAC_REG_BASE + 0xB28)
#define AR9170_MAC_REG_FCS_SELECT (AR9170_MAC_REG_BASE + 0xBB0)
#define AR9170_MAC_FCS_SWFCS 0x1
#define AR9170_MAC_FCS_FIFO_PROT 0x4
#define AR9170_MAC_REG_TXOP_NOT_ENOUGH_IND (AR9170_MAC_REG_BASE + 0xB30)
#define AR9170_MAC_REG_AC1_AC0_TXOP (AR9170_MAC_REG_BASE + 0xB44)
#define AR9170_MAC_REG_AC3_AC2_TXOP (AR9170_MAC_REG_BASE + 0xB48)
#define AR9170_MAC_REG_AMPDU_FACTOR (AR9170_MAC_REG_BASE + 0xB9C)
#define AR9170_MAC_REG_AMPDU_DENSITY (AR9170_MAC_REG_BASE + 0xBA0)
#define AR9170_MAC_REG_ACK_TABLE (AR9170_MAC_REG_BASE + 0xC00)
#define AR9170_MAC_REG_AMPDU_RX_THRESH (AR9170_MAC_REG_BASE + 0xC50)
#define AR9170_MAC_REG_TXRX_MPI (AR9170_MAC_REG_BASE + 0xD7C)
#define AR9170_MAC_TXRX_MPI_TX_MPI_MASK 0x0000000f
#define AR9170_MAC_TXRX_MPI_TX_TO_MASK 0x0000fff0
#define AR9170_MAC_TXRX_MPI_RX_MPI_MASK 0x000f0000
#define AR9170_MAC_TXRX_MPI_RX_TO_MASK 0xfff00000
#define AR9170_MAC_REG_BCN_ADDR (AR9170_MAC_REG_BASE + 0xD84)
#define AR9170_MAC_REG_BCN_LENGTH (AR9170_MAC_REG_BASE + 0xD88)
#define AR9170_MAC_REG_BCN_PLCP (AR9170_MAC_REG_BASE + 0xD90)
#define AR9170_MAC_REG_BCN_CTRL (AR9170_MAC_REG_BASE + 0xD94)
#define AR9170_MAC_REG_BCN_HT1 (AR9170_MAC_REG_BASE + 0xDA0)
#define AR9170_MAC_REG_BCN_HT2 (AR9170_MAC_REG_BASE + 0xDA4)
#define AR9170_PWR_REG_BASE 0x1D4000
#define AR9170_PWR_REG_CLOCK_SEL (AR9170_PWR_REG_BASE + 0x008)
#define AR9170_PWR_CLK_AHB_40MHZ 0
#define AR9170_PWR_CLK_AHB_20_22MHZ 1
#define AR9170_PWR_CLK_AHB_40_44MHZ 2
#define AR9170_PWR_CLK_AHB_80_88MHZ 3
#define AR9170_PWR_CLK_DAC_160_INV_DLY 0x70
/* put beacon here in memory */
#define AR9170_BEACON_BUFFER_ADDRESS 0x117900
struct ar9170_tx_control {
__le16 length;
__le16 mac_control;
__le32 phy_control;
u8 frame_data[0];
} __packed;
/* these are either-or */
#define AR9170_TX_MAC_PROT_RTS 0x0001
#define AR9170_TX_MAC_PROT_CTS 0x0002
#define AR9170_TX_MAC_NO_ACK 0x0004
/* if unset, MAC will only do SIFS space before frame */
#define AR9170_TX_MAC_BACKOFF 0x0008
#define AR9170_TX_MAC_BURST 0x0010
#define AR9170_TX_MAC_AGGR 0x0020
/* encryption is a two-bit field */
#define AR9170_TX_MAC_ENCR_NONE 0x0000
#define AR9170_TX_MAC_ENCR_RC4 0x0040
#define AR9170_TX_MAC_ENCR_CENC 0x0080
#define AR9170_TX_MAC_ENCR_AES 0x00c0
#define AR9170_TX_MAC_MMIC 0x0100
#define AR9170_TX_MAC_HW_DURATION 0x0200
#define AR9170_TX_MAC_QOS_SHIFT 10
#define AR9170_TX_MAC_QOS_MASK (3 << AR9170_TX_MAC_QOS_SHIFT)
#define AR9170_TX_MAC_AGGR_QOS_BIT1 0x0400
#define AR9170_TX_MAC_AGGR_QOS_BIT2 0x0800
#define AR9170_TX_MAC_DISABLE_TXOP 0x1000
#define AR9170_TX_MAC_TXOP_RIFS 0x2000
#define AR9170_TX_MAC_IMM_AMPDU 0x4000
#define AR9170_TX_MAC_RATE_PROBE 0x8000
/* either-or */
#define AR9170_TX_PHY_MOD_CCK 0x00000000
#define AR9170_TX_PHY_MOD_OFDM 0x00000001
#define AR9170_TX_PHY_MOD_HT 0x00000002
/* depends on modulation */
#define AR9170_TX_PHY_SHORT_PREAMBLE 0x00000004
#define AR9170_TX_PHY_GREENFIELD 0x00000004
#define AR9170_TX_PHY_BW_SHIFT 3
#define AR9170_TX_PHY_BW_MASK (3 << AR9170_TX_PHY_BW_SHIFT)
#define AR9170_TX_PHY_BW_20MHZ 0
#define AR9170_TX_PHY_BW_40MHZ 2
#define AR9170_TX_PHY_BW_40MHZ_DUP 3
#define AR9170_TX_PHY_TX_HEAVY_CLIP_SHIFT 6
#define AR9170_TX_PHY_TX_HEAVY_CLIP_MASK (7 << AR9170_TX_PHY_TX_HEAVY_CLIP_SHIFT)
#define AR9170_TX_PHY_TX_PWR_SHIFT 9
#define AR9170_TX_PHY_TX_PWR_MASK (0x3f << AR9170_TX_PHY_TX_PWR_SHIFT)
/* not part of the hw-spec */
#define AR9170_TX_PHY_QOS_SHIFT 25
#define AR9170_TX_PHY_QOS_MASK (3 << AR9170_TX_PHY_QOS_SHIFT)
#define AR9170_TX_PHY_TXCHAIN_SHIFT 15
#define AR9170_TX_PHY_TXCHAIN_MASK (7 << AR9170_TX_PHY_TXCHAIN_SHIFT)
#define AR9170_TX_PHY_TXCHAIN_1 1
/* use for cck, ofdm 6/9/12/18/24 and HT if capable */
#define AR9170_TX_PHY_TXCHAIN_2 5
#define AR9170_TX_PHY_MCS_SHIFT 18
#define AR9170_TX_PHY_MCS_MASK (0x7f << AR9170_TX_PHY_MCS_SHIFT)
#define AR9170_TX_PHY_SHORT_GI 0x80000000
struct ar9170_rx_head {
u8 plcp[12];
} __packed;
struct ar9170_rx_phystatus {
union {
struct {
u8 rssi_ant0, rssi_ant1, rssi_ant2,
rssi_ant0x, rssi_ant1x, rssi_ant2x,
rssi_combined;
} __packed;
u8 rssi[7];
} __packed;
u8 evm_stream0[6], evm_stream1[6];
u8 phy_err;
} __packed;
struct ar9170_rx_macstatus {
u8 SAidx, DAidx;
u8 error;
u8 status;
} __packed;
#define AR9170_ENC_ALG_NONE 0x0
#define AR9170_ENC_ALG_WEP64 0x1
#define AR9170_ENC_ALG_TKIP 0x2
#define AR9170_ENC_ALG_AESCCMP 0x4
#define AR9170_ENC_ALG_WEP128 0x5
#define AR9170_ENC_ALG_WEP256 0x6
#define AR9170_ENC_ALG_CENC 0x7
#define AR9170_RX_ENC_SOFTWARE 0x8
static inline u8 ar9170_get_decrypt_type(struct ar9170_rx_macstatus *t)
{
return (t->SAidx & 0xc0) >> 4 |
(t->DAidx & 0xc0) >> 6;
}
#define AR9170_RX_STATUS_MODULATION_MASK 0x03
#define AR9170_RX_STATUS_MODULATION_CCK 0x00
#define AR9170_RX_STATUS_MODULATION_OFDM 0x01
#define AR9170_RX_STATUS_MODULATION_HT 0x02
#define AR9170_RX_STATUS_MODULATION_DUPOFDM 0x03
/* depends on modulation */
#define AR9170_RX_STATUS_SHORT_PREAMBLE 0x08
#define AR9170_RX_STATUS_GREENFIELD 0x08
#define AR9170_RX_STATUS_MPDU_MASK 0x30
#define AR9170_RX_STATUS_MPDU_SINGLE 0x00
#define AR9170_RX_STATUS_MPDU_FIRST 0x20
#define AR9170_RX_STATUS_MPDU_MIDDLE 0x30
#define AR9170_RX_STATUS_MPDU_LAST 0x10
#define AR9170_RX_ERROR_RXTO 0x01
#define AR9170_RX_ERROR_OVERRUN 0x02
#define AR9170_RX_ERROR_DECRYPT 0x04
#define AR9170_RX_ERROR_FCS 0x08
#define AR9170_RX_ERROR_WRONG_RA 0x10
#define AR9170_RX_ERROR_PLCP 0x20
#define AR9170_RX_ERROR_MMIC 0x40
#define AR9170_RX_ERROR_FATAL 0x80
struct ar9170_cmd_tx_status {
u8 dst[ETH_ALEN];
__le32 rate;
__le16 status;
} __packed;
#define AR9170_TX_STATUS_COMPLETE 0x00
#define AR9170_TX_STATUS_RETRY 0x01
#define AR9170_TX_STATUS_FAILED 0x02
struct ar9170_cmd_ba_failed_count {
__le16 failed;
__le16 rate;
} __packed;
struct ar9170_cmd_response {
u8 flag;
u8 type;
__le16 padding;
union {
struct ar9170_cmd_tx_status tx_status;
struct ar9170_cmd_ba_failed_count ba_fail_cnt;
u8 data[0];
};
} __packed;
/* QoS */
/* mac80211 queue to HW/FW map */
static const u8 ar9170_qos_hwmap[4] = { 3, 2, 0, 1 };
/* HW/FW queue to mac80211 map */
static const u8 ar9170_qos_mac80211map[4] = { 2, 3, 1, 0 };
enum ar9170_txq {
AR9170_TXQ_BE,
AR9170_TXQ_BK,
AR9170_TXQ_VI,
AR9170_TXQ_VO,
__AR9170_NUM_TXQ,
};
#define AR9170_TXQ_DEPTH 32
#define AR9170_TX_MAX_PENDING 128
#endif /* __AR9170_HW_H */
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