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/*
* Shared Atheros AR9170 Header
*
* RX/TX meta descriptor format
*
* Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
* Copyright 2009-2011 Christian Lamparter <chunkeey@googlemail.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.
*
* 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 __CARL9170_SHARED_WLAN_H
#define __CARL9170_SHARED_WLAN_H
#include "fwcmd.h"
#define AR9170_RX_PHY_RATE_CCK_1M 0x0a
#define AR9170_RX_PHY_RATE_CCK_2M 0x14
#define AR9170_RX_PHY_RATE_CCK_5M 0x37
#define AR9170_RX_PHY_RATE_CCK_11M 0x6e
#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
#define AR9170_RX_STATUS_MODULATION 0x03
#define AR9170_RX_STATUS_MODULATION_S 0
#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 0x30
#define AR9170_RX_STATUS_MPDU_S 4
#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_STATUS_CONT_AGGR 0x40
#define AR9170_RX_STATUS_TOTAL_ERROR 0x80
#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
/* these are either-or */
#define AR9170_TX_MAC_PROT_RTS 0x0001
#define AR9170_TX_MAC_PROT_CTS 0x0002
#define AR9170_TX_MAC_PROT 0x0003
#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_S 10
#define AR9170_TX_MAC_QOS 0x0c00
#define AR9170_TX_MAC_DISABLE_TXOP 0x1000
#define AR9170_TX_MAC_TXOP_RIFS 0x2000
#define AR9170_TX_MAC_IMM_BA 0x4000
/* 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_S 3
#define AR9170_TX_PHY_BW (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_S 6
#define AR9170_TX_PHY_TX_HEAVY_CLIP (7 << \
AR9170_TX_PHY_TX_HEAVY_CLIP_S)
#define AR9170_TX_PHY_TX_PWR_S 9
#define AR9170_TX_PHY_TX_PWR (0x3f << \
AR9170_TX_PHY_TX_PWR_S)
#define AR9170_TX_PHY_TXCHAIN_S 15
#define AR9170_TX_PHY_TXCHAIN (7 << \
AR9170_TX_PHY_TXCHAIN_S)
#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_S 18
#define AR9170_TX_PHY_MCS (0x7f << \
AR9170_TX_PHY_MCS_S)
#define AR9170_TX_PHY_RATE_CCK_1M 0x0
#define AR9170_TX_PHY_RATE_CCK_2M 0x1
#define AR9170_TX_PHY_RATE_CCK_5M 0x2
#define AR9170_TX_PHY_RATE_CCK_11M 0x3
/* same as AR9170_RX_PHY_RATE */
#define AR9170_TXRX_PHY_RATE_OFDM_6M 0xb
#define AR9170_TXRX_PHY_RATE_OFDM_9M 0xf
#define AR9170_TXRX_PHY_RATE_OFDM_12M 0xa
#define AR9170_TXRX_PHY_RATE_OFDM_18M 0xe
#define AR9170_TXRX_PHY_RATE_OFDM_24M 0x9
#define AR9170_TXRX_PHY_RATE_OFDM_36M 0xd
#define AR9170_TXRX_PHY_RATE_OFDM_48M 0x8
#define AR9170_TXRX_PHY_RATE_OFDM_54M 0xc
#define AR9170_TXRX_PHY_RATE_HT_MCS0 0x0
#define AR9170_TXRX_PHY_RATE_HT_MCS1 0x1
#define AR9170_TXRX_PHY_RATE_HT_MCS2 0x2
#define AR9170_TXRX_PHY_RATE_HT_MCS3 0x3
#define AR9170_TXRX_PHY_RATE_HT_MCS4 0x4
#define AR9170_TXRX_PHY_RATE_HT_MCS5 0x5
#define AR9170_TXRX_PHY_RATE_HT_MCS6 0x6
#define AR9170_TXRX_PHY_RATE_HT_MCS7 0x7
#define AR9170_TXRX_PHY_RATE_HT_MCS8 0x8
#define AR9170_TXRX_PHY_RATE_HT_MCS9 0x9
#define AR9170_TXRX_PHY_RATE_HT_MCS10 0xa
#define AR9170_TXRX_PHY_RATE_HT_MCS11 0xb
#define AR9170_TXRX_PHY_RATE_HT_MCS12 0xc
#define AR9170_TXRX_PHY_RATE_HT_MCS13 0xd
#define AR9170_TXRX_PHY_RATE_HT_MCS14 0xe
#define AR9170_TXRX_PHY_RATE_HT_MCS15 0xf
#define AR9170_TX_PHY_SHORT_GI 0x80000000
#ifdef __CARL9170FW__
struct ar9170_tx_hw_mac_control {
union {
struct {
/*
* Beware of compiler bugs in all gcc pre 4.4!
*/
u8 erp_prot:2;
u8 no_ack:1;
u8 backoff:1;
u8 burst:1;
u8 ampdu:1;
u8 enc_mode:2;
u8 hw_mmic:1;
u8 hw_duration:1;
u8 qos_queue:2;
u8 disable_txop:1;
u8 txop_rifs:1;
u8 ba_end:1;
u8 probe:1;
} __packed;
__le16 set;
} __packed;
} __packed;
struct ar9170_tx_hw_phy_control {
union {
struct {
/*
* Beware of compiler bugs in all gcc pre 4.4!
*/
u8 modulation:2;
u8 preamble:1;
u8 bandwidth:2;
u8:1;
u8 heavy_clip:3;
u8 tx_power:6;
u8 chains:3;
u8 mcs:7;
u8:6;
u8 short_gi:1;
} __packed;
__le32 set;
} __packed;
} __packed;
struct ar9170_tx_rate_info {
u8 tries:3;
u8 erp_prot:2;
u8 ampdu:1;
u8 free:2; /* free for use (e.g.:RIFS/TXOP/AMPDU) */
} __packed;
struct carl9170_tx_superdesc {
__le16 len;
u8 rix;
u8 cnt;
u8 cookie;
u8 ampdu_density:3;
u8 ampdu_factor:2;
u8 ampdu_commit_density:1;
u8 ampdu_commit_factor:1;
u8 ampdu_unused_bit:1;
u8 queue:2;
u8 assign_seq:1;
u8 vif_id:3;
u8 fill_in_tsf:1;
u8 cab:1;
u8 padding2;
struct ar9170_tx_rate_info ri[CARL9170_TX_MAX_RATES];
struct ar9170_tx_hw_phy_control rr[CARL9170_TX_MAX_RETRY_RATES];
} __packed;
struct ar9170_tx_hwdesc {
__le16 length;
struct ar9170_tx_hw_mac_control mac;
struct ar9170_tx_hw_phy_control phy;
} __packed;
struct ar9170_tx_frame {
struct ar9170_tx_hwdesc hdr;
union {
struct ieee80211_hdr i3e;
u8 payload[0];
} data;
} __packed;
struct carl9170_tx_superframe {
struct carl9170_tx_superdesc s;
struct ar9170_tx_frame f;
} __packed __aligned(4);
#endif /* __CARL9170FW__ */
struct _ar9170_tx_hwdesc {
__le16 length;
__le16 mac_control;
__le32 phy_control;
} __packed;
#define CARL9170_TX_SUPER_AMPDU_DENSITY_S 0
#define CARL9170_TX_SUPER_AMPDU_DENSITY 0x7
#define CARL9170_TX_SUPER_AMPDU_FACTOR 0x18
#define CARL9170_TX_SUPER_AMPDU_FACTOR_S 3
#define CARL9170_TX_SUPER_AMPDU_COMMIT_DENSITY 0x20
#define CARL9170_TX_SUPER_AMPDU_COMMIT_DENSITY_S 5
#define CARL9170_TX_SUPER_AMPDU_COMMIT_FACTOR 0x40
#define CARL9170_TX_SUPER_AMPDU_COMMIT_FACTOR_S 6
#define CARL9170_TX_SUPER_MISC_QUEUE 0x3
#define CARL9170_TX_SUPER_MISC_QUEUE_S 0
#define CARL9170_TX_SUPER_MISC_ASSIGN_SEQ 0x4
#define CARL9170_TX_SUPER_MISC_VIF_ID 0x38
#define CARL9170_TX_SUPER_MISC_VIF_ID_S 3
#define CARL9170_TX_SUPER_MISC_FILL_IN_TSF 0x40
#define CARL9170_TX_SUPER_MISC_CAB 0x80
#define CARL9170_TX_SUPER_RI_TRIES 0x7
#define CARL9170_TX_SUPER_RI_TRIES_S 0
#define CARL9170_TX_SUPER_RI_ERP_PROT 0x18
#define CARL9170_TX_SUPER_RI_ERP_PROT_S 3
#define CARL9170_TX_SUPER_RI_AMPDU 0x20
#define CARL9170_TX_SUPER_RI_AMPDU_S 5
struct _carl9170_tx_superdesc {
__le16 len;
u8 rix;
u8 cnt;
u8 cookie;
u8 ampdu_settings;
u8 misc;
u8 padding;
u8 ri[CARL9170_TX_MAX_RATES];
__le32 rr[CARL9170_TX_MAX_RETRY_RATES];
} __packed;
struct _carl9170_tx_superframe {
struct _carl9170_tx_superdesc s;
struct _ar9170_tx_hwdesc f;
u8 frame_data[0];
} __packed __aligned(4);
#define CARL9170_TX_SUPERDESC_LEN 24
#define AR9170_TX_HWDESC_LEN 8
#define CARL9170_TX_SUPERFRAME_LEN (CARL9170_TX_SUPERDESC_LEN + \
AR9170_TX_HWDESC_LEN)
struct ar9170_rx_head {
u8 plcp[12];
} __packed;
#define AR9170_RX_HEAD_LEN 12
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;
#define AR9170_RX_PHYSTATUS_LEN 20
struct ar9170_rx_macstatus {
u8 SAidx, DAidx;
u8 error;
u8 status;
} __packed;
#define AR9170_RX_MACSTATUS_LEN 4
struct ar9170_rx_frame_single {
struct ar9170_rx_head phy_head;
struct ieee80211_hdr i3e;
struct ar9170_rx_phystatus phy_tail;
struct ar9170_rx_macstatus macstatus;
} __packed;
struct ar9170_rx_frame_head {
struct ar9170_rx_head phy_head;
struct ieee80211_hdr i3e;
struct ar9170_rx_macstatus macstatus;
} __packed;
struct ar9170_rx_frame_middle {
struct ieee80211_hdr i3e;
struct ar9170_rx_macstatus macstatus;
} __packed;
struct ar9170_rx_frame_tail {
struct ieee80211_hdr i3e;
struct ar9170_rx_phystatus phy_tail;
struct ar9170_rx_macstatus macstatus;
} __packed;
struct ar9170_rx_frame {
union {
struct ar9170_rx_frame_single single;
struct ar9170_rx_frame_head head;
struct ar9170_rx_frame_middle middle;
struct ar9170_rx_frame_tail tail;
} __packed;
} __packed;
static inline u8 ar9170_get_decrypt_type(struct ar9170_rx_macstatus *t)
{
return (t->SAidx & 0xc0) >> 4 |
(t->DAidx & 0xc0) >> 6;
}
/*
* This is an workaround for several undocumented bugs.
* Don't mess with the QoS/AC <-> HW Queue map, if you don't
* know what you are doing.
*
* Known problems [hardware]:
* * The MAC does not aggregate frames on anything other
* than the first HW queue.
* * when an AMPDU is placed [in the first hw queue] and
* additional frames are already queued on a different
* hw queue, the MAC will ALWAYS freeze.
*
* In a nutshell: The hardware can either do QoS or
* Aggregation but not both at the same time. As a
* result, this makes the device pretty much useless
* for any serious 802.11n setup.
*/
enum ar9170_txq {
AR9170_TXQ_BK = 0, /* TXQ0 */
AR9170_TXQ_BE, /* TXQ1 */
AR9170_TXQ_VI, /* TXQ2 */
AR9170_TXQ_VO, /* TXQ3 */
__AR9170_NUM_TXQ,
};
#define AR9170_TXQ_DEPTH 32
#endif /* __CARL9170_SHARED_WLAN_H */
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