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path: root/drivers/net/wireless/ath/ar9170/mac.c
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Diffstat (limited to 'drivers/net/wireless/ath/ar9170/mac.c')
-rw-r--r--drivers/net/wireless/ath/ar9170/mac.c519
1 files changed, 0 insertions, 519 deletions
diff --git a/drivers/net/wireless/ath/ar9170/mac.c b/drivers/net/wireless/ath/ar9170/mac.c
deleted file mode 100644
index 857e86104295..000000000000
--- a/drivers/net/wireless/ath/ar9170/mac.c
+++ /dev/null
@@ -1,519 +0,0 @@
-/*
- * Atheros AR9170 driver
- *
- * MAC programming
- *
- * 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.
- */
-
-#include <asm/unaligned.h>
-
-#include "ar9170.h"
-#include "cmd.h"
-
-int ar9170_set_dyn_sifs_ack(struct ar9170 *ar)
-{
- u32 val;
-
- if (conf_is_ht40(&ar->hw->conf))
- val = 0x010a;
- else {
- if (ar->hw->conf.channel->band == IEEE80211_BAND_2GHZ)
- val = 0x105;
- else
- val = 0x104;
- }
-
- return ar9170_write_reg(ar, AR9170_MAC_REG_DYNAMIC_SIFS_ACK, val);
-}
-
-int ar9170_set_slot_time(struct ar9170 *ar)
-{
- u32 slottime = 20;
-
- if (!ar->vif)
- return 0;
-
- if ((ar->hw->conf.channel->band == IEEE80211_BAND_5GHZ) ||
- ar->vif->bss_conf.use_short_slot)
- slottime = 9;
-
- return ar9170_write_reg(ar, AR9170_MAC_REG_SLOT_TIME, slottime << 10);
-}
-
-int ar9170_set_basic_rates(struct ar9170 *ar)
-{
- u8 cck, ofdm;
-
- if (!ar->vif)
- return 0;
-
- ofdm = ar->vif->bss_conf.basic_rates >> 4;
-
- /* FIXME: is still necessary? */
- if (ar->hw->conf.channel->band == IEEE80211_BAND_5GHZ)
- cck = 0;
- else
- cck = ar->vif->bss_conf.basic_rates & 0xf;
-
- return ar9170_write_reg(ar, AR9170_MAC_REG_BASIC_RATE,
- ofdm << 8 | cck);
-}
-
-int ar9170_set_qos(struct ar9170 *ar)
-{
- ar9170_regwrite_begin(ar);
-
- ar9170_regwrite(AR9170_MAC_REG_AC0_CW, ar->edcf[0].cw_min |
- (ar->edcf[0].cw_max << 16));
- ar9170_regwrite(AR9170_MAC_REG_AC1_CW, ar->edcf[1].cw_min |
- (ar->edcf[1].cw_max << 16));
- ar9170_regwrite(AR9170_MAC_REG_AC2_CW, ar->edcf[2].cw_min |
- (ar->edcf[2].cw_max << 16));
- ar9170_regwrite(AR9170_MAC_REG_AC3_CW, ar->edcf[3].cw_min |
- (ar->edcf[3].cw_max << 16));
- ar9170_regwrite(AR9170_MAC_REG_AC4_CW, ar->edcf[4].cw_min |
- (ar->edcf[4].cw_max << 16));
-
- ar9170_regwrite(AR9170_MAC_REG_AC1_AC0_AIFS,
- ((ar->edcf[0].aifs * 9 + 10)) |
- ((ar->edcf[1].aifs * 9 + 10) << 12) |
- ((ar->edcf[2].aifs * 9 + 10) << 24));
- ar9170_regwrite(AR9170_MAC_REG_AC3_AC2_AIFS,
- ((ar->edcf[2].aifs * 9 + 10) >> 8) |
- ((ar->edcf[3].aifs * 9 + 10) << 4) |
- ((ar->edcf[4].aifs * 9 + 10) << 16));
-
- ar9170_regwrite(AR9170_MAC_REG_AC1_AC0_TXOP,
- ar->edcf[0].txop | ar->edcf[1].txop << 16);
- ar9170_regwrite(AR9170_MAC_REG_AC3_AC2_TXOP,
- ar->edcf[2].txop | ar->edcf[3].txop << 16);
-
- ar9170_regwrite_finish();
-
- return ar9170_regwrite_result();
-}
-
-static int ar9170_set_ampdu_density(struct ar9170 *ar, u8 mpdudensity)
-{
- u32 val;
-
- /* don't allow AMPDU density > 8us */
- if (mpdudensity > 6)
- return -EINVAL;
-
- /* Watch out! Otus uses slightly different density values. */
- val = 0x140a00 | (mpdudensity ? (mpdudensity + 1) : 0);
-
- ar9170_regwrite_begin(ar);
- ar9170_regwrite(AR9170_MAC_REG_AMPDU_DENSITY, val);
- ar9170_regwrite_finish();
-
- return ar9170_regwrite_result();
-}
-
-int ar9170_init_mac(struct ar9170 *ar)
-{
- ar9170_regwrite_begin(ar);
-
- ar9170_regwrite(AR9170_MAC_REG_ACK_EXTENSION, 0x40);
-
- ar9170_regwrite(AR9170_MAC_REG_RETRY_MAX, 0);
-
- /* enable MMIC */
- ar9170_regwrite(AR9170_MAC_REG_SNIFFER,
- AR9170_MAC_REG_SNIFFER_DEFAULTS);
-
- ar9170_regwrite(AR9170_MAC_REG_RX_THRESHOLD, 0xc1f80);
-
- ar9170_regwrite(AR9170_MAC_REG_RX_PE_DELAY, 0x70);
- ar9170_regwrite(AR9170_MAC_REG_EIFS_AND_SIFS, 0xa144000);
- ar9170_regwrite(AR9170_MAC_REG_SLOT_TIME, 9 << 10);
-
- /* CF-END mode */
- ar9170_regwrite(0x1c3b2c, 0x19000000);
-
- /* NAV protects ACK only (in TXOP) */
- ar9170_regwrite(0x1c3b38, 0x201);
-
- /* Set Beacon PHY CTRL's TPC to 0x7, TA1=1 */
- /* OTUS set AM to 0x1 */
- ar9170_regwrite(AR9170_MAC_REG_BCN_HT1, 0x8000170);
-
- ar9170_regwrite(AR9170_MAC_REG_BACKOFF_PROTECT, 0x105);
-
- /* AGG test code*/
- /* Aggregation MAX number and timeout */
- ar9170_regwrite(0x1c3b9c, 0x10000a);
-
- ar9170_regwrite(AR9170_MAC_REG_FRAMETYPE_FILTER,
- AR9170_MAC_REG_FTF_DEFAULTS);
-
- /* Enable deaggregator, response in sniffer mode */
- ar9170_regwrite(0x1c3c40, 0x1 | 1<<30);
-
- /* rate sets */
- ar9170_regwrite(AR9170_MAC_REG_BASIC_RATE, 0x150f);
- ar9170_regwrite(AR9170_MAC_REG_MANDATORY_RATE, 0x150f);
- ar9170_regwrite(AR9170_MAC_REG_RTS_CTS_RATE, 0x10b01bb);
-
- /* MIMO response control */
- ar9170_regwrite(0x1c3694, 0x4003C1E);/* bit 26~28 otus-AM */
-
- /* switch MAC to OTUS interface */
- ar9170_regwrite(0x1c3600, 0x3);
-
- ar9170_regwrite(AR9170_MAC_REG_AMPDU_RX_THRESH, 0xffff);
-
- /* set PHY register read timeout (??) */
- ar9170_regwrite(AR9170_MAC_REG_MISC_680, 0xf00008);
-
- /* Disable Rx TimeOut, workaround for BB. */
- ar9170_regwrite(AR9170_MAC_REG_RX_TIMEOUT, 0x0);
-
- /* Set CPU clock frequency to 88/80MHz */
- ar9170_regwrite(AR9170_PWR_REG_CLOCK_SEL,
- AR9170_PWR_CLK_AHB_80_88MHZ |
- AR9170_PWR_CLK_DAC_160_INV_DLY);
-
- /* Set WLAN DMA interrupt mode: generate int per packet */
- ar9170_regwrite(AR9170_MAC_REG_TXRX_MPI, 0x110011);
-
- ar9170_regwrite(AR9170_MAC_REG_FCS_SELECT,
- AR9170_MAC_FCS_FIFO_PROT);
-
- /* Disables the CF_END frame, undocumented register */
- ar9170_regwrite(AR9170_MAC_REG_TXOP_NOT_ENOUGH_IND,
- 0x141E0F48);
-
- ar9170_regwrite_finish();
-
- return ar9170_regwrite_result();
-}
-
-static int ar9170_set_mac_reg(struct ar9170 *ar, const u32 reg, const u8 *mac)
-{
- static const u8 zero[ETH_ALEN] = { 0 };
-
- if (!mac)
- mac = zero;
-
- ar9170_regwrite_begin(ar);
-
- ar9170_regwrite(reg, get_unaligned_le32(mac));
- ar9170_regwrite(reg + 4, get_unaligned_le16(mac + 4));
-
- ar9170_regwrite_finish();
-
- return ar9170_regwrite_result();
-}
-
-int ar9170_update_multicast(struct ar9170 *ar, const u64 mc_hash)
-{
- int err;
-
- ar9170_regwrite_begin(ar);
- ar9170_regwrite(AR9170_MAC_REG_GROUP_HASH_TBL_H, mc_hash >> 32);
- ar9170_regwrite(AR9170_MAC_REG_GROUP_HASH_TBL_L, mc_hash);
- ar9170_regwrite_finish();
- err = ar9170_regwrite_result();
- if (err)
- return err;
-
- ar->cur_mc_hash = mc_hash;
- return 0;
-}
-
-int ar9170_update_frame_filter(struct ar9170 *ar, const u32 filter)
-{
- int err;
-
- err = ar9170_write_reg(ar, AR9170_MAC_REG_FRAMETYPE_FILTER, filter);
- if (err)
- return err;
-
- ar->cur_filter = filter;
- return 0;
-}
-
-static int ar9170_set_promiscouous(struct ar9170 *ar)
-{
- u32 encr_mode, sniffer;
- int err;
-
- err = ar9170_read_reg(ar, AR9170_MAC_REG_SNIFFER, &sniffer);
- if (err)
- return err;
-
- err = ar9170_read_reg(ar, AR9170_MAC_REG_ENCRYPTION, &encr_mode);
- if (err)
- return err;
-
- if (ar->sniffer_enabled) {
- sniffer |= AR9170_MAC_REG_SNIFFER_ENABLE_PROMISC;
-
- /*
- * Rx decryption works in place.
- *
- * If we don't disable it, the hardware will render all
- * encrypted frames which are encrypted with an unknown
- * key useless.
- */
-
- encr_mode |= AR9170_MAC_REG_ENCRYPTION_RX_SOFTWARE;
- ar->sniffer_enabled = true;
- } else {
- sniffer &= ~AR9170_MAC_REG_SNIFFER_ENABLE_PROMISC;
-
- if (ar->rx_software_decryption)
- encr_mode |= AR9170_MAC_REG_ENCRYPTION_RX_SOFTWARE;
- else
- encr_mode &= ~AR9170_MAC_REG_ENCRYPTION_RX_SOFTWARE;
- }
-
- ar9170_regwrite_begin(ar);
- ar9170_regwrite(AR9170_MAC_REG_ENCRYPTION, encr_mode);
- ar9170_regwrite(AR9170_MAC_REG_SNIFFER, sniffer);
- ar9170_regwrite_finish();
-
- return ar9170_regwrite_result();
-}
-
-int ar9170_set_operating_mode(struct ar9170 *ar)
-{
- struct ath_common *common = &ar->common;
- u32 pm_mode = AR9170_MAC_REG_POWERMGT_DEFAULTS;
- u8 *mac_addr, *bssid;
- int err;
-
- if (ar->vif) {
- mac_addr = common->macaddr;
- bssid = common->curbssid;
-
- switch (ar->vif->type) {
- case NL80211_IFTYPE_MESH_POINT:
- case NL80211_IFTYPE_ADHOC:
- pm_mode |= AR9170_MAC_REG_POWERMGT_IBSS;
- break;
- case NL80211_IFTYPE_AP:
- pm_mode |= AR9170_MAC_REG_POWERMGT_AP;
- break;
- case NL80211_IFTYPE_WDS:
- pm_mode |= AR9170_MAC_REG_POWERMGT_AP_WDS;
- break;
- case NL80211_IFTYPE_MONITOR:
- ar->sniffer_enabled = true;
- ar->rx_software_decryption = true;
- break;
- default:
- pm_mode |= AR9170_MAC_REG_POWERMGT_STA;
- break;
- }
- } else {
- mac_addr = NULL;
- bssid = NULL;
- }
-
- err = ar9170_set_mac_reg(ar, AR9170_MAC_REG_MAC_ADDR_L, mac_addr);
- if (err)
- return err;
-
- err = ar9170_set_mac_reg(ar, AR9170_MAC_REG_BSSID_L, bssid);
- if (err)
- return err;
-
- err = ar9170_set_promiscouous(ar);
- if (err)
- return err;
-
- /* set AMPDU density to 8us. */
- err = ar9170_set_ampdu_density(ar, 6);
- if (err)
- return err;
-
- ar9170_regwrite_begin(ar);
-
- ar9170_regwrite(AR9170_MAC_REG_POWERMANAGEMENT, pm_mode);
- ar9170_regwrite_finish();
-
- return ar9170_regwrite_result();
-}
-
-int ar9170_set_hwretry_limit(struct ar9170 *ar, unsigned int max_retry)
-{
- u32 tmp = min_t(u32, 0x33333, max_retry * 0x11111);
-
- return ar9170_write_reg(ar, AR9170_MAC_REG_RETRY_MAX, tmp);
-}
-
-int ar9170_set_beacon_timers(struct ar9170 *ar)
-{
- u32 v = 0;
- u32 pretbtt = 0;
-
- if (ar->vif) {
- v |= ar->vif->bss_conf.beacon_int;
-
- if (ar->enable_beacon) {
- switch (ar->vif->type) {
- case NL80211_IFTYPE_MESH_POINT:
- case NL80211_IFTYPE_ADHOC:
- v |= BIT(25);
- break;
- case NL80211_IFTYPE_AP:
- v |= BIT(24);
- pretbtt = (ar->vif->bss_conf.beacon_int - 6) <<
- 16;
- break;
- default:
- break;
- }
- }
-
- v |= ar->vif->bss_conf.dtim_period << 16;
- }
-
- ar9170_regwrite_begin(ar);
- ar9170_regwrite(AR9170_MAC_REG_PRETBTT, pretbtt);
- ar9170_regwrite(AR9170_MAC_REG_BCN_PERIOD, v);
- ar9170_regwrite_finish();
- return ar9170_regwrite_result();
-}
-
-int ar9170_update_beacon(struct ar9170 *ar)
-{
- struct sk_buff *skb;
- __le32 *data, *old = NULL;
- u32 word;
- int i;
-
- skb = ieee80211_beacon_get(ar->hw, ar->vif);
- if (!skb)
- return -ENOMEM;
-
- data = (__le32 *)skb->data;
- if (ar->beacon)
- old = (__le32 *)ar->beacon->data;
-
- ar9170_regwrite_begin(ar);
- for (i = 0; i < DIV_ROUND_UP(skb->len, 4); i++) {
- /*
- * XXX: This accesses beyond skb data for up
- * to the last 3 bytes!!
- */
-
- if (old && (data[i] == old[i]))
- continue;
-
- word = le32_to_cpu(data[i]);
- ar9170_regwrite(AR9170_BEACON_BUFFER_ADDRESS + 4 * i, word);
- }
-
- /* XXX: use skb->cb info */
- if (ar->hw->conf.channel->band == IEEE80211_BAND_2GHZ)
- ar9170_regwrite(AR9170_MAC_REG_BCN_PLCP,
- ((skb->len + 4) << (3 + 16)) + 0x0400);
- else
- ar9170_regwrite(AR9170_MAC_REG_BCN_PLCP,
- ((skb->len + 4) << 16) + 0x001b);
-
- ar9170_regwrite(AR9170_MAC_REG_BCN_LENGTH, skb->len + 4);
- ar9170_regwrite(AR9170_MAC_REG_BCN_ADDR, AR9170_BEACON_BUFFER_ADDRESS);
- ar9170_regwrite(AR9170_MAC_REG_BCN_CTRL, 1);
-
- ar9170_regwrite_finish();
-
- dev_kfree_skb(ar->beacon);
- ar->beacon = skb;
-
- return ar9170_regwrite_result();
-}
-
-void ar9170_new_beacon(struct work_struct *work)
-{
- struct ar9170 *ar = container_of(work, struct ar9170,
- beacon_work);
- struct sk_buff *skb;
-
- if (unlikely(!IS_STARTED(ar)))
- return ;
-
- mutex_lock(&ar->mutex);
-
- if (!ar->vif)
- goto out;
-
- ar9170_update_beacon(ar);
-
- rcu_read_lock();
- while ((skb = ieee80211_get_buffered_bc(ar->hw, ar->vif)))
- ar9170_op_tx(ar->hw, skb);
-
- rcu_read_unlock();
-
- out:
- mutex_unlock(&ar->mutex);
-}
-
-int ar9170_upload_key(struct ar9170 *ar, u8 id, const u8 *mac, u8 ktype,
- u8 keyidx, u8 *keydata, int keylen)
-{
- __le32 vals[7];
- static const u8 bcast[ETH_ALEN] =
- { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
- u8 dummy;
-
- mac = mac ? : bcast;
-
- vals[0] = cpu_to_le32((keyidx << 16) + id);
- vals[1] = cpu_to_le32(mac[1] << 24 | mac[0] << 16 | ktype);
- vals[2] = cpu_to_le32(mac[5] << 24 | mac[4] << 16 |
- mac[3] << 8 | mac[2]);
- memset(&vals[3], 0, 16);
- if (keydata)
- memcpy(&vals[3], keydata, keylen);
-
- return ar->exec_cmd(ar, AR9170_CMD_EKEY,
- sizeof(vals), (u8 *)vals,
- 1, &dummy);
-}
-
-int ar9170_disable_key(struct ar9170 *ar, u8 id)
-{
- __le32 val = cpu_to_le32(id);
- u8 dummy;
-
- return ar->exec_cmd(ar, AR9170_CMD_EKEY,
- sizeof(val), (u8 *)&val,
- 1, &dummy);
-}