diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-15 09:40:05 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-15 09:40:05 -0700 |
commit | 2ed0e21b30b53d3a94e204196e523e6c8f732b56 (patch) | |
tree | de2635426477d86338a9469ce09ba0626052288f /drivers/net/wireless/ath/ar9170 | |
parent | 0fa213310cd8fa7a51071cdcf130e26fa56e9549 (diff) | |
parent | 9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1244 commits)
pkt_sched: Rename PSCHED_US2NS and PSCHED_NS2US
ipv4: Fix fib_trie rebalancing
Bluetooth: Fix issue with uninitialized nsh.type in DTL-1 driver
Bluetooth: Fix Kconfig issue with RFKILL integration
PIM-SM: namespace changes
ipv4: update ARPD help text
net: use a deferred timer in rt_check_expire
ieee802154: fix kconfig bool/tristate muckup
bonding: initialization rework
bonding: use is_zero_ether_addr
bonding: network device names are case sensative
bonding: elminate bad refcount code
bonding: fix style issues
bonding: fix destructor
bonding: remove bonding read/write semaphore
bonding: initialize before registration
bonding: bond_create always called with default parameters
x_tables: Convert printk to pr_err
netfilter: conntrack: optional reliable conntrack event delivery
list_nulls: add hlist_nulls_add_head and hlist_nulls_del
...
Diffstat (limited to 'drivers/net/wireless/ath/ar9170')
-rw-r--r-- | drivers/net/wireless/ath/ar9170/Kconfig | 18 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/Makefile | 3 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/ar9170.h | 257 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/cmd.c | 129 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/cmd.h | 91 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/eeprom.h | 179 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/hw.h | 426 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/led.c | 178 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/mac.c | 524 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/main.c | 2210 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/phy.c | 1240 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/usb.c | 929 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ar9170/usb.h | 81 |
13 files changed, 6265 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ar9170/Kconfig b/drivers/net/wireless/ath/ar9170/Kconfig new file mode 100644 index 00000000000..b99e3263ee6 --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/Kconfig @@ -0,0 +1,18 @@ +config AR9170_USB + tristate "Atheros AR9170 802.11n USB support" + depends on USB && MAC80211 && WLAN_80211 && EXPERIMENTAL + select FW_LOADER + select ATH_COMMON + help + This is a driver for the Atheros "otus" 802.11n USB devices. + + These devices require additional firmware (2 files). + For now, these files can be downloaded from here: + http://wireless.kernel.org/en/users/Drivers/ar9170 + + If you choose to build a module, it'll be called ar9170usb. + +config AR9170_LEDS + bool + depends on AR9170_USB && MAC80211_LEDS && (LEDS_CLASS = y || LEDS_CLASS = AR9170_USB) + default y diff --git a/drivers/net/wireless/ath/ar9170/Makefile b/drivers/net/wireless/ath/ar9170/Makefile new file mode 100644 index 00000000000..8d91c7ee321 --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/Makefile @@ -0,0 +1,3 @@ +ar9170usb-objs := usb.o main.o cmd.o mac.o phy.o led.o + +obj-$(CONFIG_AR9170_USB) += ar9170usb.o diff --git a/drivers/net/wireless/ath/ar9170/ar9170.h b/drivers/net/wireless/ath/ar9170/ar9170.h new file mode 100644 index 00000000000..bb97981fb24 --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/ar9170.h @@ -0,0 +1,257 @@ +/* + * Atheros AR9170 driver + * + * Driver 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_H +#define __AR9170_H + +#include <linux/completion.h> +#include <linux/spinlock.h> +#include <net/cfg80211.h> +#include <net/mac80211.h> +#ifdef CONFIG_AR9170_LEDS +#include <linux/leds.h> +#endif /* CONFIG_AR9170_LEDS */ +#include "eeprom.h" +#include "hw.h" + +#include "../regd.h" + +#define PAYLOAD_MAX (AR9170_MAX_CMD_LEN/4 - 1) + +enum ar9170_bw { + AR9170_BW_20, + AR9170_BW_40_BELOW, + AR9170_BW_40_ABOVE, + + __AR9170_NUM_BW, +}; + +static inline enum ar9170_bw nl80211_to_ar9170(enum nl80211_channel_type type) +{ + switch (type) { + case NL80211_CHAN_NO_HT: + case NL80211_CHAN_HT20: + return AR9170_BW_20; + case NL80211_CHAN_HT40MINUS: + return AR9170_BW_40_BELOW; + case NL80211_CHAN_HT40PLUS: + return AR9170_BW_40_ABOVE; + default: + BUG(); + } +} + +enum ar9170_rf_init_mode { + AR9170_RFI_NONE, + AR9170_RFI_WARM, + AR9170_RFI_COLD, +}; + +#define AR9170_MAX_RX_BUFFER_SIZE 8192 + +#ifdef CONFIG_AR9170_LEDS +struct ar9170; + +struct ar9170_led { + struct ar9170 *ar; + struct led_classdev l; + char name[32]; + unsigned int toggled; + bool last_state; + bool registered; +}; + +#endif /* CONFIG_AR9170_LEDS */ + +enum ar9170_device_state { + AR9170_UNKNOWN_STATE, + AR9170_STOPPED, + AR9170_IDLE, + AR9170_STARTED, +}; + +struct ar9170_rxstream_mpdu_merge { + struct ar9170_rx_head plcp; + bool has_plcp; +}; + +#define AR9170_QUEUE_TIMEOUT 64 +#define AR9170_TX_TIMEOUT 8 +#define AR9170_JANITOR_DELAY 128 +#define AR9170_TX_INVALID_RATE 0xffffffff + +struct ar9170 { + struct ieee80211_hw *hw; + struct mutex mutex; + enum ar9170_device_state state; + unsigned long bad_hw_nagger; + + int (*open)(struct ar9170 *); + void (*stop)(struct ar9170 *); + int (*tx)(struct ar9170 *, struct sk_buff *); + int (*exec_cmd)(struct ar9170 *, enum ar9170_cmd, u32 , + void *, u32 , void *); + void (*callback_cmd)(struct ar9170 *, u32 , void *); + int (*flush)(struct ar9170 *); + + /* interface mode settings */ + struct ieee80211_vif *vif; + u8 mac_addr[ETH_ALEN]; + u8 bssid[ETH_ALEN]; + + /* beaconing */ + struct sk_buff *beacon; + struct work_struct beacon_work; + + /* cryptographic engine */ + u64 usedkeys; + bool rx_software_decryption; + bool disable_offload; + + /* filter settings */ + struct work_struct filter_config_work; + u64 cur_mc_hash, want_mc_hash; + u32 cur_filter, want_filter; + unsigned long filter_changed; + unsigned int filter_state; + bool sniffer_enabled; + + /* PHY */ + struct ieee80211_channel *channel; + int noise[4]; + + /* power calibration data */ + u8 power_5G_leg[4]; + u8 power_2G_cck[4]; + u8 power_2G_ofdm[4]; + u8 power_5G_ht20[8]; + u8 power_5G_ht40[8]; + u8 power_2G_ht20[8]; + u8 power_2G_ht40[8]; + +#ifdef CONFIG_AR9170_LEDS + struct delayed_work led_work; + struct ar9170_led leds[AR9170_NUM_LEDS]; +#endif /* CONFIG_AR9170_LEDS */ + + /* qos queue settings */ + spinlock_t tx_stats_lock; + struct ieee80211_tx_queue_stats tx_stats[5]; + struct ieee80211_tx_queue_params edcf[5]; + + spinlock_t cmdlock; + __le32 cmdbuf[PAYLOAD_MAX + 1]; + + /* MAC statistics */ + struct ieee80211_low_level_stats stats; + + /* EEPROM */ + struct ar9170_eeprom eeprom; + struct ath_regulatory regulatory; + + /* tx queues - as seen by hw - */ + struct sk_buff_head tx_pending[__AR9170_NUM_TXQ]; + struct sk_buff_head tx_status[__AR9170_NUM_TXQ]; + struct delayed_work tx_janitor; + + /* rxstream mpdu merge */ + struct ar9170_rxstream_mpdu_merge rx_mpdu; + struct sk_buff *rx_failover; + int rx_failover_missing; +}; + +struct ar9170_sta_info { +}; + +#define AR9170_TX_FLAG_WAIT_FOR_ACK BIT(0) +#define AR9170_TX_FLAG_NO_ACK BIT(1) +#define AR9170_TX_FLAG_BLOCK_ACK BIT(2) + +struct ar9170_tx_info { + unsigned long timeout; + unsigned int flags; +}; + +#define IS_STARTED(a) (((struct ar9170 *)a)->state >= AR9170_STARTED) +#define IS_ACCEPTING_CMD(a) (((struct ar9170 *)a)->state >= AR9170_IDLE) + +#define AR9170_FILTER_CHANGED_MODE BIT(0) +#define AR9170_FILTER_CHANGED_MULTICAST BIT(1) +#define AR9170_FILTER_CHANGED_FRAMEFILTER BIT(2) + +/* exported interface */ +void *ar9170_alloc(size_t priv_size); +int ar9170_register(struct ar9170 *ar, struct device *pdev); +void ar9170_rx(struct ar9170 *ar, struct sk_buff *skb); +void ar9170_unregister(struct ar9170 *ar); +void ar9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb); +void ar9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len); +int ar9170_nag_limiter(struct ar9170 *ar); + +/* MAC */ +int ar9170_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb); +int ar9170_init_mac(struct ar9170 *ar); +int ar9170_set_qos(struct ar9170 *ar); +int ar9170_update_multicast(struct ar9170 *ar); +int ar9170_update_frame_filter(struct ar9170 *ar); +int ar9170_set_operating_mode(struct ar9170 *ar); +int ar9170_set_beacon_timers(struct ar9170 *ar); +int ar9170_set_dyn_sifs_ack(struct ar9170 *ar); +int ar9170_set_slot_time(struct ar9170 *ar); +int ar9170_set_basic_rates(struct ar9170 *ar); +int ar9170_set_hwretry_limit(struct ar9170 *ar, u32 max_retry); +int ar9170_update_beacon(struct ar9170 *ar); +void ar9170_new_beacon(struct work_struct *work); +int ar9170_upload_key(struct ar9170 *ar, u8 id, const u8 *mac, u8 ktype, + u8 keyidx, u8 *keydata, int keylen); +int ar9170_disable_key(struct ar9170 *ar, u8 id); + +/* LEDs */ +#ifdef CONFIG_AR9170_LEDS +int ar9170_register_leds(struct ar9170 *ar); +void ar9170_unregister_leds(struct ar9170 *ar); +#endif /* CONFIG_AR9170_LEDS */ +int ar9170_init_leds(struct ar9170 *ar); +int ar9170_set_leds_state(struct ar9170 *ar, u32 led_state); + +/* PHY / RF */ +int ar9170_init_phy(struct ar9170 *ar, enum ieee80211_band band); +int ar9170_init_rf(struct ar9170 *ar); +int ar9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel, + enum ar9170_rf_init_mode rfi, enum ar9170_bw bw); + +#endif /* __AR9170_H */ diff --git a/drivers/net/wireless/ath/ar9170/cmd.c b/drivers/net/wireless/ath/ar9170/cmd.c new file mode 100644 index 00000000000..f57a6200167 --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/cmd.c @@ -0,0 +1,129 @@ +/* + * Atheros AR9170 driver + * + * Basic HW register/memory/command access functions + * + * 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 "ar9170.h" +#include "cmd.h" + +int ar9170_write_mem(struct ar9170 *ar, const __le32 *data, size_t len) +{ + int err; + + if (unlikely(!IS_ACCEPTING_CMD(ar))) + return 0; + + err = ar->exec_cmd(ar, AR9170_CMD_WMEM, len, (u8 *) data, 0, NULL); + if (err) + printk(KERN_DEBUG "%s: writing memory failed\n", + wiphy_name(ar->hw->wiphy)); + return err; +} + +int ar9170_write_reg(struct ar9170 *ar, const u32 reg, const u32 val) +{ + __le32 buf[2] = { + cpu_to_le32(reg), + cpu_to_le32(val), + }; + int err; + + if (unlikely(!IS_ACCEPTING_CMD(ar))) + return 0; + + err = ar->exec_cmd(ar, AR9170_CMD_WREG, sizeof(buf), + (u8 *) buf, 0, NULL); + if (err) + printk(KERN_DEBUG "%s: writing reg %#x (val %#x) failed\n", + wiphy_name(ar->hw->wiphy), reg, val); + return err; +} + +static int ar9170_read_mreg(struct ar9170 *ar, int nregs, + const u32 *regs, u32 *out) +{ + int i, err; + __le32 *offs, *res; + + if (unlikely(!IS_ACCEPTING_CMD(ar))) + return 0; + + /* abuse "out" for the register offsets, must be same length */ + offs = (__le32 *)out; + for (i = 0; i < nregs; i++) + offs[i] = cpu_to_le32(regs[i]); + + /* also use the same buffer for the input */ + res = (__le32 *)out; + + err = ar->exec_cmd(ar, AR9170_CMD_RREG, + 4 * nregs, (u8 *)offs, + 4 * nregs, (u8 *)res); + if (err) + return err; + + /* convert result to cpu endian */ + for (i = 0; i < nregs; i++) + out[i] = le32_to_cpu(res[i]); + + return 0; +} + +int ar9170_read_reg(struct ar9170 *ar, u32 reg, u32 *val) +{ + return ar9170_read_mreg(ar, 1, ®, val); +} + +int ar9170_echo_test(struct ar9170 *ar, u32 v) +{ + __le32 echobuf = cpu_to_le32(v); + __le32 echores; + int err; + + if (unlikely(!IS_ACCEPTING_CMD(ar))) + return -ENODEV; + + err = ar->exec_cmd(ar, AR9170_CMD_ECHO, + 4, (u8 *)&echobuf, + 4, (u8 *)&echores); + if (err) + return err; + + if (echobuf != echores) + return -EINVAL; + + return 0; +} diff --git a/drivers/net/wireless/ath/ar9170/cmd.h b/drivers/net/wireless/ath/ar9170/cmd.h new file mode 100644 index 00000000000..a4f0e50e52b --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/cmd.h @@ -0,0 +1,91 @@ +/* + * Atheros AR9170 driver + * + * Basic HW register/memory/command access functions + * + * 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 __CMD_H +#define __CMD_H + +#include "ar9170.h" + +/* basic HW access */ +int ar9170_write_mem(struct ar9170 *ar, const __le32 *data, size_t len); +int ar9170_write_reg(struct ar9170 *ar, const u32 reg, const u32 val); +int ar9170_read_reg(struct ar9170 *ar, u32 reg, u32 *val); +int ar9170_echo_test(struct ar9170 *ar, u32 v); + +/* + * Macros to facilitate writing multiple registers in a single + * write-combining USB command. Note that when the first group + * fails the whole thing will fail without any others attempted, + * but you won't know which write in the group failed. + */ +#define ar9170_regwrite_begin(ar) \ +do { \ + int __nreg = 0, __err = 0; \ + struct ar9170 *__ar = ar; + +#define ar9170_regwrite(r, v) do { \ + __ar->cmdbuf[2 * __nreg + 1] = cpu_to_le32(r); \ + __ar->cmdbuf[2 * __nreg + 2] = cpu_to_le32(v); \ + __nreg++; \ + if ((__nreg >= PAYLOAD_MAX/2)) { \ + if (IS_ACCEPTING_CMD(__ar)) \ + __err = ar->exec_cmd(__ar, AR9170_CMD_WREG, \ + 8 * __nreg, \ + (u8 *) &__ar->cmdbuf[1], \ + 0, NULL); \ + __nreg = 0; \ + if (__err) \ + goto __regwrite_out; \ + } \ +} while (0) + +#define ar9170_regwrite_finish() \ +__regwrite_out : \ + if (__nreg) { \ + if (IS_ACCEPTING_CMD(__ar)) \ + __err = ar->exec_cmd(__ar, AR9170_CMD_WREG, \ + 8 * __nreg, \ + (u8 *) &__ar->cmdbuf[1], \ + 0, NULL); \ + __nreg = 0; \ + } + +#define ar9170_regwrite_result() \ + __err; \ +} while (0); + +#endif /* __CMD_H */ diff --git a/drivers/net/wireless/ath/ar9170/eeprom.h b/drivers/net/wireless/ath/ar9170/eeprom.h new file mode 100644 index 00000000000..d2c8cc83f1d --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/eeprom.h @@ -0,0 +1,179 @@ +/* + * Atheros AR9170 driver + * + * EEPROM layout + * + * 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_EEPROM_H +#define __AR9170_EEPROM_H + +#define AR5416_MAX_CHAINS 2 +#define AR5416_MODAL_SPURS 5 + +struct ar9170_eeprom_modal { + __le32 antCtrlChain[AR5416_MAX_CHAINS]; + __le32 antCtrlCommon; + s8 antennaGainCh[AR5416_MAX_CHAINS]; + u8 switchSettling; + u8 txRxAttenCh[AR5416_MAX_CHAINS]; + u8 rxTxMarginCh[AR5416_MAX_CHAINS]; + s8 adcDesiredSize; + s8 pgaDesiredSize; + u8 xlnaGainCh[AR5416_MAX_CHAINS]; + u8 txEndToXpaOff; + u8 txEndToRxOn; + u8 txFrameToXpaOn; + u8 thresh62; + s8 noiseFloorThreshCh[AR5416_MAX_CHAINS]; + u8 xpdGain; + u8 xpd; + s8 iqCalICh[AR5416_MAX_CHAINS]; + s8 iqCalQCh[AR5416_MAX_CHAINS]; + u8 pdGainOverlap; + u8 ob; + u8 db; + u8 xpaBiasLvl; + u8 pwrDecreaseFor2Chain; + u8 pwrDecreaseFor3Chain; + u8 txFrameToDataStart; + u8 txFrameToPaOn; + u8 ht40PowerIncForPdadc; + u8 bswAtten[AR5416_MAX_CHAINS]; + u8 bswMargin[AR5416_MAX_CHAINS]; + u8 swSettleHt40; + u8 reserved[22]; + struct spur_channel { + __le16 spurChan; + u8 spurRangeLow; + u8 spurRangeHigh; + } __packed spur_channels[AR5416_MODAL_SPURS]; +} __packed; + +#define AR5416_NUM_PD_GAINS 4 +#define AR5416_PD_GAIN_ICEPTS 5 + +struct ar9170_calibration_data_per_freq { + u8 pwr_pdg[AR5416_NUM_PD_GAINS][AR5416_PD_GAIN_ICEPTS]; + u8 vpd_pdg[AR5416_NUM_PD_GAINS][AR5416_PD_GAIN_ICEPTS]; +} __packed; + +#define AR5416_NUM_5G_CAL_PIERS 8 +#define AR5416_NUM_2G_CAL_PIERS 4 + +#define AR5416_NUM_5G_TARGET_PWRS 8 +#define AR5416_NUM_2G_CCK_TARGET_PWRS 3 +#define AR5416_NUM_2G_OFDM_TARGET_PWRS 4 +#define AR5416_MAX_NUM_TGT_PWRS 8 + +struct ar9170_calibration_target_power_legacy { + u8 freq; + u8 power[4]; +} __packed; + +struct ar9170_calibration_target_power_ht { + u8 freq; + u8 power[8]; +} __packed; + +#define AR5416_NUM_CTLS 24 + +struct ar9170_calctl_edges { + u8 channel; +#define AR9170_CALCTL_EDGE_FLAGS 0xC0 + u8 power_flags; +} __packed; + +#define AR5416_NUM_BAND_EDGES 8 + +struct ar9170_calctl_data { + struct ar9170_calctl_edges + control_edges[AR5416_MAX_CHAINS][AR5416_NUM_BAND_EDGES]; +} __packed; + + +struct ar9170_eeprom { + __le16 length; + __le16 checksum; + __le16 version; + u8 operating_flags; +#define AR9170_OPFLAG_5GHZ 1 +#define AR9170_OPFLAG_2GHZ 2 + u8 misc; + __le16 reg_domain[2]; + u8 mac_address[6]; + u8 rx_mask; + u8 tx_mask; + __le16 rf_silent; + __le16 bluetooth_options; + __le16 device_capabilities; + __le32 build_number; + u8 deviceType; + u8 reserved[33]; + + u8 customer_data[64]; + + struct ar9170_eeprom_modal + modal_header[2]; + + u8 cal_freq_pier_5G[AR5416_NUM_5G_CAL_PIERS]; + u8 cal_freq_pier_2G[AR5416_NUM_2G_CAL_PIERS]; + + struct ar9170_calibration_data_per_freq + cal_pier_data_5G[AR5416_MAX_CHAINS][AR5416_NUM_5G_CAL_PIERS], + cal_pier_data_2G[AR5416_MAX_CHAINS][AR5416_NUM_2G_CAL_PIERS]; + + /* power calibration data */ + struct ar9170_calibration_target_power_legacy + cal_tgt_pwr_5G[AR5416_NUM_5G_TARGET_PWRS]; + struct ar9170_calibration_target_power_ht + cal_tgt_pwr_5G_ht20[AR5416_NUM_5G_TARGET_PWRS], + cal_tgt_pwr_5G_ht40[AR5416_NUM_5G_TARGET_PWRS]; + + struct ar9170_calibration_target_power_legacy + cal_tgt_pwr_2G_cck[AR5416_NUM_2G_CCK_TARGET_PWRS], + cal_tgt_pwr_2G_ofdm[AR5416_NUM_2G_OFDM_TARGET_PWRS]; + struct ar9170_calibration_target_power_ht + cal_tgt_pwr_2G_ht20[AR5416_NUM_2G_OFDM_TARGET_PWRS], + cal_tgt_pwr_2G_ht40[AR5416_NUM_2G_OFDM_TARGET_PWRS]; + + /* conformance testing limits */ + u8 ctl_index[AR5416_NUM_CTLS]; + struct ar9170_calctl_data + ctl_data[AR5416_NUM_CTLS]; + + u8 pad; + __le16 subsystem_id; +} __packed; + +#endif /* __AR9170_EEPROM_H */ diff --git a/drivers/net/wireless/ath/ar9170/hw.h b/drivers/net/wireless/ath/ar9170/hw.h new file mode 100644 index 00000000000..6cbfb2f8339 --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/hw.h @@ -0,0 +1,426 @@ +/* + * 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 */ diff --git a/drivers/net/wireless/ath/ar9170/led.c b/drivers/net/wireless/ath/ar9170/led.c new file mode 100644 index 00000000000..63fda6cd210 --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/led.c @@ -0,0 +1,178 @@ +/* + * Atheros AR9170 driver + * + * LED handling + * + * 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 "ar9170.h" +#include "cmd.h" + +int ar9170_set_leds_state(struct ar9170 *ar, u32 led_state) +{ + return ar9170_write_reg(ar, AR9170_GPIO_REG_DATA, led_state); +} + +int ar9170_init_leds(struct ar9170 *ar) +{ + int err; + + /* disable LEDs */ + /* GPIO [0/1 mode: output, 2/3: input] */ + err = ar9170_write_reg(ar, AR9170_GPIO_REG_PORT_TYPE, 3); + if (err) + goto out; + + /* GPIO 0/1 value: off */ + err = ar9170_set_leds_state(ar, 0); + +out: + return err; +} + +#ifdef CONFIG_AR9170_LEDS +static void ar9170_update_leds(struct work_struct *work) +{ + struct ar9170 *ar = container_of(work, struct ar9170, led_work.work); + int i, tmp, blink_delay = 1000; + u32 led_val = 0; + bool rerun = false; + + if (unlikely(!IS_ACCEPTING_CMD(ar))) + return ; + + mutex_lock(&ar->mutex); + for (i = 0; i < AR9170_NUM_LEDS; i++) + if (ar->leds[i].registered && ar->leds[i].toggled) { + led_val |= 1 << i; + + tmp = 70 + 200 / (ar->leds[i].toggled); + if (tmp < blink_delay) + blink_delay = tmp; + + if (ar->leds[i].toggled > 1) + ar->leds[i].toggled = 0; + + rerun = true; + } + + ar9170_set_leds_state(ar, led_val); + mutex_unlock(&ar->mutex); + + if (rerun) + queue_delayed_work(ar->hw->workqueue, &ar->led_work, + msecs_to_jiffies(blink_delay)); +} + +static void ar9170_led_brightness_set(struct led_classdev *led, + enum led_brightness brightness) +{ + struct ar9170_led *arl = container_of(led, struct ar9170_led, l); + struct ar9170 *ar = arl->ar; + + if (unlikely(!arl->registered)) + return ; + + if (arl->last_state != !!brightness) { + arl->toggled++; + arl->last_state = !!brightness; + } + + if (likely(IS_ACCEPTING_CMD(ar) && arl->toggled)) + queue_delayed_work(ar->hw->workqueue, &ar->led_work, HZ/10); +} + +static int ar9170_register_led(struct ar9170 *ar, int i, char *name, + char *trigger) +{ + int err; + + snprintf(ar->leds[i].name, sizeof(ar->leds[i].name), + "ar9170-%s::%s", wiphy_name(ar->hw->wiphy), name); + + ar->leds[i].ar = ar; + ar->leds[i].l.name = ar->leds[i].name; + ar->leds[i].l.brightness_set = ar9170_led_brightness_set; + ar->leds[i].l.brightness = 0; + ar->leds[i].l.default_trigger = trigger; + + err = led_classdev_register(wiphy_dev(ar->hw->wiphy), + &ar->leds[i].l); + if (err) + printk(KERN_ERR "%s: failed to register %s LED (%d).\n", + wiphy_name(ar->hw->wiphy), ar->leds[i].name, err); + else + ar->leds[i].registered = true; + + return err; +} + +void ar9170_unregister_leds(struct ar9170 *ar) +{ + int i; + + for (i = 0; i < AR9170_NUM_LEDS; i++) + if (ar->leds[i].registered) { + led_classdev_unregister(&ar->leds[i].l); + ar->leds[i].registered = false; + ar->leds[i].toggled = 0; + } + + cancel_delayed_work_sync(&ar->led_work); +} + +int ar9170_register_leds(struct ar9170 *ar) +{ + int err; + + INIT_DELAYED_WORK(&ar->led_work, ar9170_update_leds); + + err = ar9170_register_led(ar, 0, "tx", + ieee80211_get_tx_led_name(ar->hw)); + if (err) + goto fail; + + err = ar9170_register_led(ar, 1, "assoc", + ieee80211_get_assoc_led_name(ar->hw)); + if (err) + goto fail; + + return 0; + +fail: + ar9170_unregister_leds(ar); + return err; +} + +#endif /* CONFIG_AR9170_LEDS */ diff --git a/drivers/net/wireless/ath/ar9170/mac.c b/drivers/net/wireless/ath/ar9170/mac.c new file mode 100644 index 00000000000..d9f1f46de18 --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/mac.c @@ -0,0 +1,524 @@ +/* + * 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 "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[1].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, + (mac[3] << 24) | (mac[2] << 16) | + (mac[1] << 8) | mac[0]); + + ar9170_regwrite(reg + 4, (mac[5] << 8) | mac[4]); + + ar9170_regwrite_finish(); + + return ar9170_regwrite_result(); +} + +int ar9170_update_multicast(struct ar9170 *ar) +{ + int err; + + ar9170_regwrite_begin(ar); + ar9170_regwrite(AR9170_MAC_REG_GROUP_HASH_TBL_H, + ar->want_mc_hash >> 32); + ar9170_regwrite(AR9170_MAC_REG_GROUP_HASH_TBL_L, + ar->want_mc_hash); + + ar9170_regwrite_finish(); + err = ar9170_regwrite_result(); + + if (err) + return err; + + ar->cur_mc_hash = ar->want_mc_hash; + + return 0; +} + +int ar9170_update_frame_filter(struct ar9170 *ar) +{ + int err; + + err = ar9170_write_reg(ar, AR9170_MAC_REG_FRAMETYPE_FILTER, + ar->want_filter); + + if (err) + return err; + + ar->cur_filter = ar->want_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) +{ + u32 pm_mode = AR9170_MAC_REG_POWERMGT_DEFAULTS; + u8 *mac_addr, *bssid; + int err; + + if (ar->vif) { + mac_addr = ar->mac_addr; + bssid = ar->bssid; + + 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; + + 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); +} diff --git a/drivers/net/wireless/ath/ar9170/main.c b/drivers/net/wireless/ath/ar9170/main.c new file mode 100644 index 00000000000..9d38cf60a0d --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/main.c @@ -0,0 +1,2210 @@ +/* + * Atheros AR9170 driver + * + * mac80211 interaction code + * + * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> + * Copyright 2009, Christian Lamparter <chunkeey@web.de> + * + * 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 <linux/init.h> +#include <linux/module.h> +#include <linux/etherdevice.h> +#include <net/mac80211.h> +#include "ar9170.h" +#include "hw.h" +#include "cmd.h" + +static int modparam_nohwcrypt; +module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO); +MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption."); + +#define RATE(_bitrate, _hw_rate, _txpidx, _flags) { \ + .bitrate = (_bitrate), \ + .flags = (_flags), \ + .hw_value = (_hw_rate) | (_txpidx) << 4, \ +} + +static struct ieee80211_rate __ar9170_ratetable[] = { + RATE(10, 0, 0, 0), + RATE(20, 1, 1, IEEE80211_RATE_SHORT_PREAMBLE), + RATE(55, 2, 2, IEEE80211_RATE_SHORT_PREAMBLE), + RATE(110, 3, 3, IEEE80211_RATE_SHORT_PREAMBLE), + RATE(60, 0xb, 0, 0), + RATE(90, 0xf, 0, 0), + RATE(120, 0xa, 0, 0), + RATE(180, 0xe, 0, 0), + RATE(240, 0x9, 0, 0), + RATE(360, 0xd, 1, 0), + RATE(480, 0x8, 2, 0), + RATE(540, 0xc, 3, 0), +}; +#undef RATE + +#define ar9170_g_ratetable (__ar9170_ratetable + 0) +#define ar9170_g_ratetable_size 12 +#define ar9170_a_ratetable (__ar9170_ratetable + 4) +#define ar9170_a_ratetable_size 8 + +/* + * NB: The hw_value is used as an index into the ar9170_phy_freq_params + * array in phy.c so that we don't have to do frequency lookups! + */ +#define CHAN(_freq, _idx) { \ + .center_freq = (_freq), \ + .hw_value = (_idx), \ + .max_power = 18, /* XXX */ \ +} + +static struct ieee80211_channel ar9170_2ghz_chantable[] = { + CHAN(2412, 0), + CHAN(2417, 1), + CHAN(2422, 2), + CHAN(2427, 3), + CHAN(2432, 4), + CHAN(2437, 5), + CHAN(2442, 6), + CHAN(2447, 7), + CHAN(2452, 8), + CHAN(2457, 9), + CHAN(2462, 10), + CHAN(2467, 11), + CHAN(2472, 12), + CHAN(2484, 13), +}; + +static struct ieee80211_channel ar9170_5ghz_chantable[] = { + CHAN(4920, 14), + CHAN(4940, 15), + CHAN(4960, 16), + CHAN(4980, 17), + CHAN(5040, 18), + CHAN(5060, 19), + CHAN(5080, 20), + CHAN(5180, 21), + CHAN(5200, 22), + CHAN(5220, 23), + CHAN(5240, 24), + CHAN(5260, 25), + CHAN(5280, 26), + CHAN(5300, 27), + CHAN(5320, 28), + CHAN(5500, 29), + CHAN(5520, 30), + CHAN(5540, 31), + CHAN(5560, 32), + CHAN(5580, 33), + CHAN(5600, 34), + CHAN(5620, 35), + CHAN(5640, 36), + CHAN(5660, 37), + CHAN(5680, 38), + CHAN(5700, 39), + CHAN(5745, 40), + CHAN(5765, 41), + CHAN(5785, 42), + CHAN(5805, 43), + CHAN(5825, 44), + CHAN(5170, 45), + CHAN(5190, 46), + CHAN(5210, 47), + CHAN(5230, 48), +}; +#undef CHAN + +#define AR9170_HT_CAP \ +{ \ + .ht_supported = true, \ + .cap = IEEE80211_HT_CAP_MAX_AMSDU | \ + IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \ + IEEE80211_HT_CAP_SGI_40 | \ + IEEE80211_HT_CAP_DSSSCCK40 | \ + IEEE80211_HT_CAP_SM_PS, \ + .ampdu_factor = 3, \ + .ampdu_density = 6, \ + .mcs = { \ + .rx_mask = { 0xFF, 0xFF, 0, 0, 0, 0, 0, 0, 0, 0, }, \ + }, \ +} + +static struct ieee80211_supported_band ar9170_band_2GHz = { + .channels = ar9170_2ghz_chantable, + .n_channels = ARRAY_SIZE(ar9170_2ghz_chantable), + .bitrates = ar9170_g_ratetable, + .n_bitrates = ar9170_g_ratetable_size, + .ht_cap = AR9170_HT_CAP, +}; + +static struct ieee80211_supported_band ar9170_band_5GHz = { + .channels = ar9170_5ghz_chantable, + .n_channels = ARRAY_SIZE(ar9170_5ghz_chantable), + .bitrates = ar9170_a_ratetable, + .n_bitrates = ar9170_a_ratetable_size, + .ht_cap = AR9170_HT_CAP, +}; + +static void ar9170_tx(struct ar9170 *ar); + +#ifdef AR9170_QUEUE_DEBUG +static void ar9170_print_txheader(struct ar9170 *ar, struct sk_buff *skb) +{ + struct ar9170_tx_control *txc = (void *) skb->data; + struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb); + struct ar9170_tx_info *arinfo = (void *) txinfo->rate_driver_data; + struct ieee80211_hdr *hdr = (void *) txc->frame_data; + + printk(KERN_DEBUG "%s: => FRAME [skb:%p, q:%d, DA:[%pM] flags:%x " + "mac_ctrl:%04x, phy_ctrl:%08x, timeout:[%d ms]]\n", + wiphy_name(ar->hw->wiphy), skb, skb_get_queue_mapping(skb), + ieee80211_get_DA(hdr), arinfo->flags, + le16_to_cpu(txc->mac_control), le32_to_cpu(txc->phy_control), + jiffies_to_msecs(arinfo->timeout - jiffies)); +} + +static void __ar9170_dump_txqueue(struct ar9170 *ar, + struct sk_buff_head *queue) +{ + struct sk_buff *skb; + int i = 0; + + printk(KERN_DEBUG "---[ cut here ]---\n"); + printk(KERN_DEBUG "%s: %d entries in queue.\n", + wiphy_name(ar->hw->wiphy), skb_queue_len(queue)); + + skb_queue_walk(queue, skb) { + printk(KERN_DEBUG "index:%d => \n", i++); + ar9170_print_txheader(ar, skb); + } + if (i != skb_queue_len(queue)) + printk(KERN_DEBUG "WARNING: queue frame counter " + "mismatch %d != %d\n", skb_queue_len(queue), i); + printk(KERN_DEBUG "---[ end ]---\n"); +} + +static void ar9170_dump_txqueue(struct ar9170 *ar, + struct sk_buff_head *queue) +{ + unsigned long flags; + + spin_lock_irqsave(&queue->lock, flags); + __ar9170_dump_txqueue(ar, queue); + spin_unlock_irqrestore(&queue->lock, flags); +} + +static void __ar9170_dump_txstats(struct ar9170 *ar) +{ + int i; + + printk(KERN_DEBUG "%s: QoS queue stats\n", + wiphy_name(ar->hw->wiphy)); + + for (i = 0; i < __AR9170_NUM_TXQ; i++) + printk(KERN_DEBUG "%s: queue:%d limit:%d len:%d waitack:%d\n", + wiphy_name(ar->hw->wiphy), i, ar->tx_stats[i].limit, + ar->tx_stats[i].len, skb_queue_len(&ar->tx_status[i])); +} + +static void ar9170_dump_txstats(struct ar9170 *ar) +{ + unsigned long flags; + + spin_lock_irqsave(&ar->tx_stats_lock, flags); + __ar9170_dump_txstats(ar); + spin_unlock_irqrestore(&ar->tx_stats_lock, flags); +} +#endif /* AR9170_QUEUE_DEBUG */ + +/* caller must guarantee exclusive access for _bin_ queue. */ +static void ar9170_recycle_expired(struct ar9170 *ar, + struct sk_buff_head *queue, + struct sk_buff_head *bin) +{ + struct sk_buff *skb, *old = NULL; + unsigned long flags; + + spin_lock_irqsave(&queue->lock, flags); + while ((skb = skb_peek(queue))) { + struct ieee80211_tx_info *txinfo; + struct ar9170_tx_info *arinfo; + + txinfo = IEEE80211_SKB_CB(skb); + arinfo = (void *) txinfo->rate_driver_data; + + if (time_is_before_jiffies(arinfo->timeout)) { +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: [%ld > %ld] frame expired => " + "recycle \n", wiphy_name(ar->hw->wiphy), + jiffies, arinfo->timeout); + ar9170_print_txheader(ar, skb); +#endif /* AR9170_QUEUE_DEBUG */ + __skb_unlink(skb, queue); + __skb_queue_tail(bin, skb); + } else { + break; + } + + if (unlikely(old == skb)) { + /* bail out - queue is shot. */ + + WARN_ON(1); + break; + } + old = skb; + } + spin_unlock_irqrestore(&queue->lock, flags); +} + +static void ar9170_tx_status(struct ar9170 *ar, struct sk_buff *skb, + u16 tx_status) +{ + struct ieee80211_tx_info *txinfo; + unsigned int retries = 0; + + txinfo = IEEE80211_SKB_CB(skb); + ieee80211_tx_info_clear_status(txinfo); + + switch (tx_status) { + case AR9170_TX_STATUS_RETRY: + retries = 2; + case AR9170_TX_STATUS_COMPLETE: + txinfo->flags |= IEEE80211_TX_STAT_ACK; + break; + + case AR9170_TX_STATUS_FAILED: + retries = ar->hw->conf.long_frame_max_tx_count; + break; + + default: + printk(KERN_ERR "%s: invalid tx_status response (%x).\n", + wiphy_name(ar->hw->wiphy), tx_status); + break; + } + + txinfo->status.rates[0].count = retries + 1; + skb_pull(skb, sizeof(struct ar9170_tx_control)); + ieee80211_tx_status_irqsafe(ar->hw, skb); +} + +void ar9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ar9170_tx_info *arinfo = (void *) info->rate_driver_data; + unsigned int queue = skb_get_queue_mapping(skb); + unsigned long flags; + + spin_lock_irqsave(&ar->tx_stats_lock, flags); + ar->tx_stats[queue].len--; + + if (skb_queue_empty(&ar->tx_pending[queue])) { +#ifdef AR9170_QUEUE_STOP_DEBUG + printk(KERN_DEBUG "%s: wake queue %d\n", + wiphy_name(ar->hw->wiphy), queue); + __ar9170_dump_txstats(ar); +#endif /* AR9170_QUEUE_STOP_DEBUG */ + ieee80211_wake_queue(ar->hw, queue); + } + spin_unlock_irqrestore(&ar->tx_stats_lock, flags); + + if (arinfo->flags & AR9170_TX_FLAG_BLOCK_ACK) { + dev_kfree_skb_any(skb); + } else if (arinfo->flags & AR9170_TX_FLAG_WAIT_FOR_ACK) { + arinfo->timeout = jiffies + + msecs_to_jiffies(AR9170_TX_TIMEOUT); + + skb_queue_tail(&ar->tx_status[queue], skb); + } else if (arinfo->flags & AR9170_TX_FLAG_NO_ACK) { + ar9170_tx_status(ar, skb, AR9170_TX_STATUS_FAILED); + } else { +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: unsupported frame flags!\n", + wiphy_name(ar->hw->wiphy)); + ar9170_print_txheader(ar, skb); +#endif /* AR9170_QUEUE_DEBUG */ + dev_kfree_skb_any(skb); + } + + if (!ar->tx_stats[queue].len && + !skb_queue_empty(&ar->tx_pending[queue])) { + ar9170_tx(ar); + } +} + +static struct sk_buff *ar9170_get_queued_skb(struct ar9170 *ar, + const u8 *mac, + struct sk_buff_head *queue, + const u32 rate) +{ + unsigned long flags; + struct sk_buff *skb; + + /* + * Unfortunately, the firmware does not tell to which (queued) frame + * this transmission status report belongs to. + * + * So we have to make risky guesses - with the scarce information + * the firmware provided (-> destination MAC, and phy_control) - + * and hope that we picked the right one... + */ + + spin_lock_irqsave(&queue->lock, flags); + skb_queue_walk(queue, skb) { + struct ar9170_tx_control *txc = (void *) skb->data; + struct ieee80211_hdr *hdr = (void *) txc->frame_data; + u32 r; + + if (mac && compare_ether_addr(ieee80211_get_DA(hdr), mac)) { +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: skip frame => DA %pM != %pM\n", + wiphy_name(ar->hw->wiphy), mac, + ieee80211_get_DA(hdr)); + ar9170_print_txheader(ar, skb); +#endif /* AR9170_QUEUE_DEBUG */ + continue; + } + + r = (le32_to_cpu(txc->phy_control) & AR9170_TX_PHY_MCS_MASK) >> + AR9170_TX_PHY_MCS_SHIFT; + + if ((rate != AR9170_TX_INVALID_RATE) && (r != rate)) { +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: skip frame => rate %d != %d\n", + wiphy_name(ar->hw->wiphy), rate, r); + ar9170_print_txheader(ar, skb); +#endif /* AR9170_QUEUE_DEBUG */ + continue; + } + + __skb_unlink(skb, queue); + spin_unlock_irqrestore(&queue->lock, flags); + return skb; + } + +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_ERR "%s: ESS:[%pM] does not have any " + "outstanding frames in queue.\n", + wiphy_name(ar->hw->wiphy), mac); + __ar9170_dump_txqueue(ar, queue); +#endif /* AR9170_QUEUE_DEBUG */ + spin_unlock_irqrestore(&queue->lock, flags); + + return NULL; +} + +/* + * This worker tries to keeps an maintain tx_status queues. + * So we can guarantee that incoming tx_status reports are + * actually for a pending frame. + */ + +static void ar9170_tx_janitor(struct work_struct *work) +{ + struct ar9170 *ar = container_of(work, struct ar9170, + tx_janitor.work); + struct sk_buff_head waste; + unsigned int i; + bool resched = false; + + if (unlikely(!IS_STARTED(ar))) + return ; + + skb_queue_head_init(&waste); + + for (i = 0; i < __AR9170_NUM_TXQ; i++) { +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: garbage collector scans queue:%d\n", + wiphy_name(ar->hw->wiphy), i); + ar9170_dump_txqueue(ar, &ar->tx_pending[i]); + ar9170_dump_txqueue(ar, &ar->tx_status[i]); +#endif /* AR9170_QUEUE_DEBUG */ + + ar9170_recycle_expired(ar, &ar->tx_status[i], &waste); + ar9170_recycle_expired(ar, &ar->tx_pending[i], &waste); + skb_queue_purge(&waste); + + if (!skb_queue_empty(&ar->tx_status[i]) || + !skb_queue_empty(&ar->tx_pending[i])) + resched = true; + } + + if (resched) + queue_delayed_work(ar->hw->workqueue, + &ar->tx_janitor, + msecs_to_jiffies(AR9170_JANITOR_DELAY)); +} + +void ar9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len) +{ + struct ar9170_cmd_response *cmd = (void *) buf; + + if ((cmd->type & 0xc0) != 0xc0) { + ar->callback_cmd(ar, len, buf); + return; + } + + /* hardware event handlers */ + switch (cmd->type) { + case 0xc1: { + /* + * TX status notification: + * bytes: 0c c1 XX YY M1 M2 M3 M4 M5 M6 R4 R3 R2 R1 S2 S1 + * + * XX always 81 + * YY always 00 + * M1-M6 is the MAC address + * R1-R4 is the transmit rate + * S1-S2 is the transmit status + */ + + struct sk_buff *skb; + u32 phy = le32_to_cpu(cmd->tx_status.rate); + u32 q = (phy & AR9170_TX_PHY_QOS_MASK) >> + AR9170_TX_PHY_QOS_SHIFT; +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: recv tx_status for %pM, p:%08x, q:%d\n", + wiphy_name(ar->hw->wiphy), cmd->tx_status.dst, phy, q); +#endif /* AR9170_QUEUE_DEBUG */ + + skb = ar9170_get_queued_skb(ar, cmd->tx_status.dst, + &ar->tx_status[q], + AR9170_TX_INVALID_RATE); + if (unlikely(!skb)) + return ; + + ar9170_tx_status(ar, skb, le16_to_cpu(cmd->tx_status.status)); + break; + } + + case 0xc0: + /* + * pre-TBTT event + */ + if (ar->vif && ar->vif->type == NL80211_IFTYPE_AP) + queue_work(ar->hw->workqueue, &ar->beacon_work); + break; + + case 0xc2: + /* + * (IBSS) beacon send notification + * bytes: 04 c2 XX YY B4 B3 B2 B1 + * + * XX always 80 + * YY always 00 + * B1-B4 "should" be the number of send out beacons. + */ + break; + + case 0xc3: + /* End of Atim Window */ + break; + + case 0xc4: + case 0xc5: + /* BlockACK events */ + break; + + case 0xc6: + /* Watchdog Interrupt */ + break; + + case 0xc9: + /* retransmission issue / SIFS/EIFS collision ?! */ + break; + + /* firmware debug */ + case 0xca: + printk(KERN_DEBUG "ar9170 FW: %.*s\n", len - 4, (char *)buf + 4); + break; + case 0xcb: + len -= 4; + + switch (len) { + case 1: + printk(KERN_DEBUG "ar9170 FW: u8: %#.2x\n", + *((char *)buf + 4)); + break; + case 2: + printk(KERN_DEBUG "ar9170 FW: u8: %#.4x\n", + le16_to_cpup((__le16 *)((char *)buf + 4))); + break; + case 4: + printk(KERN_DEBUG "ar9170 FW: u8: %#.8x\n", + le32_to_cpup((__le32 *)((char *)buf + 4))); + break; + case 8: + printk(KERN_DEBUG "ar9170 FW: u8: %#.16lx\n", + (unsigned long)le64_to_cpup( + (__le64 *)((char *)buf + 4))); + break; + } + break; + case 0xcc: + print_hex_dump_bytes("ar9170 FW:", DUMP_PREFIX_NONE, + (char *)buf + 4, len - 4); + break; + + default: + printk(KERN_INFO "received unhandled event %x\n", cmd->type); + print_hex_dump_bytes("dump:", DUMP_PREFIX_NONE, buf, len); + break; + } +} + +static void ar9170_rx_reset_rx_mpdu(struct ar9170 *ar) +{ + memset(&ar->rx_mpdu.plcp, 0, sizeof(struct ar9170_rx_head)); + ar->rx_mpdu.has_plcp = false; +} + +int ar9170_nag_limiter(struct ar9170 *ar) +{ + bool print_message; + + /* + * we expect all sorts of errors in promiscuous mode. + * don't bother with it, it's OK! + */ + if (ar->sniffer_enabled) + return false; + + /* + * only go for frequent errors! The hardware tends to + * do some stupid thing once in a while under load, in + * noisy environments or just for fun! + */ + if (time_before(jiffies, ar->bad_hw_nagger) && net_ratelimit()) + print_message = true; + else + print_message = false; + + /* reset threshold for "once in a while" */ + ar->bad_hw_nagger = jiffies + HZ / 4; + return print_message; +} + +static int ar9170_rx_mac_status(struct ar9170 *ar, + struct ar9170_rx_head *head, + struct ar9170_rx_macstatus *mac, + struct ieee80211_rx_status *status) +{ + u8 error, decrypt; + + BUILD_BUG_ON(sizeof(struct ar9170_rx_head) != 12); + BUILD_BUG_ON(sizeof(struct ar9170_rx_macstatus) != 4); + + error = mac->error; + if (error & AR9170_RX_ERROR_MMIC) { + status->flag |= RX_FLAG_MMIC_ERROR; + error &= ~AR9170_RX_ERROR_MMIC; + } + + if (error & AR9170_RX_ERROR_PLCP) { + status->flag |= RX_FLAG_FAILED_PLCP_CRC; + error &= ~AR9170_RX_ERROR_PLCP; + + if (!(ar->filter_state & FIF_PLCPFAIL)) + return -EINVAL; + } + + if (error & AR9170_RX_ERROR_FCS) { + status->flag |= RX_FLAG_FAILED_FCS_CRC; + error &= ~AR9170_RX_ERROR_FCS; + + if (!(ar->filter_state & FIF_FCSFAIL)) + return -EINVAL; + } + + decrypt = ar9170_get_decrypt_type(mac); + if (!(decrypt & AR9170_RX_ENC_SOFTWARE) && + decrypt != AR9170_ENC_ALG_NONE) + status->flag |= RX_FLAG_DECRYPTED; + + /* ignore wrong RA errors */ + error &= ~AR9170_RX_ERROR_WRONG_RA; + + if (error & AR9170_RX_ERROR_DECRYPT) { + error &= ~AR9170_RX_ERROR_DECRYPT; + /* + * Rx decryption is done in place, + * the original data is lost anyway. + */ + + return -EINVAL; + } + + /* drop any other error frames */ + if (unlikely(error)) { + /* TODO: update netdevice's RX dropped/errors statistics */ + + if (ar9170_nag_limiter(ar)) + printk(KERN_DEBUG "%s: received frame with " + "suspicious error code (%#x).\n", + wiphy_name(ar->hw->wiphy), error); + + return -EINVAL; + } + + status->band = ar->channel->band; + status->freq = ar->channel->center_freq; + + switch (mac->status & AR9170_RX_STATUS_MODULATION_MASK) { + case AR9170_RX_STATUS_MODULATION_CCK: + if (mac->status & AR9170_RX_STATUS_SHORT_PREAMBLE) + status->flag |= RX_FLAG_SHORTPRE; + switch (head->plcp[0]) { + case 0x0a: + status->rate_idx = 0; + break; + case 0x14: + status->rate_idx = 1; + break; + case 0x37: + status->rate_idx = 2; + break; + case 0x6e: + status->rate_idx = 3; + break; + default: + if (ar9170_nag_limiter(ar)) + printk(KERN_ERR "%s: invalid plcp cck rate " + "(%x).\n", wiphy_name(ar->hw->wiphy), + head->plcp[0]); + return -EINVAL; + } + break; + + case AR9170_RX_STATUS_MODULATION_OFDM: + switch (head->plcp[0] & 0xf) { + case 0xb: + status->rate_idx = 0; + break; + case 0xf: + status->rate_idx = 1; + break; + case 0xa: + status->rate_idx = 2; + break; + case 0xe: + status->rate_idx = 3; + break; + case 0x9: + status->rate_idx = 4; + break; + case 0xd: + status->rate_idx = 5; + break; + case 0x8: + status->rate_idx = 6; + break; + case 0xc: + status->rate_idx = 7; + break; + default: + if (ar9170_nag_limiter(ar)) + printk(KERN_ERR "%s: invalid plcp ofdm rate " + "(%x).\n", wiphy_name(ar->hw->wiphy), + head->plcp[0]); + return -EINVAL; + } + if (status->band == IEEE80211_BAND_2GHZ) + status->rate_idx += 4; + break; + + case AR9170_RX_STATUS_MODULATION_HT: + if (head->plcp[3] & 0x80) + status->flag |= RX_FLAG_40MHZ; + if (head->plcp[6] & 0x80) + status->flag |= RX_FLAG_SHORT_GI; + + status->rate_idx = clamp(0, 75, head->plcp[6] & 0x7f); + status->flag |= RX_FLAG_HT; + break; + + case AR9170_RX_STATUS_MODULATION_DUPOFDM: + /* XXX */ + if (ar9170_nag_limiter(ar)) + printk(KERN_ERR "%s: invalid modulation\n", + wiphy_name(ar->hw->wiphy)); + return -EINVAL; + } + + return 0; +} + +static void ar9170_rx_phy_status(struct ar9170 *ar, + struct ar9170_rx_phystatus *phy, + struct ieee80211_rx_status *status) +{ + int i; + + BUILD_BUG_ON(sizeof(struct ar9170_rx_phystatus) != 20); + + for (i = 0; i < 3; i++) + if (phy->rssi[i] != 0x80) + status->antenna |= BIT(i); + + /* post-process RSSI */ + for (i = 0; i < 7; i++) + if (phy->rssi[i] & 0x80) + phy->rssi[i] = ((phy->rssi[i] & 0x7f) + 1) & 0x7f; + + /* TODO: we could do something with phy_errors */ + status->signal = ar->noise[0] + phy->rssi_combined; + status->noise = ar->noise[0]; +} + +static struct sk_buff *ar9170_rx_copy_data(u8 *buf, int len) +{ + struct sk_buff *skb; + int reserved = 0; + struct ieee80211_hdr *hdr = (void *) buf; + + if (ieee80211_is_data_qos(hdr->frame_control)) { + u8 *qc = ieee80211_get_qos_ctl(hdr); + reserved += NET_IP_ALIGN; + + if (*qc & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT) + reserved += NET_IP_ALIGN; + } + + if (ieee80211_has_a4(hdr->frame_control)) + reserved += NET_IP_ALIGN; + + reserved = 32 + (reserved & NET_IP_ALIGN); + + skb = dev_alloc_skb(len + reserved); + if (likely(skb)) { + skb_reserve(skb, reserved); + memcpy(skb_put(skb, len), buf, len); + } + + return skb; +} + +/* + * If the frame alignment is right (or the kernel has + * CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS), and there + * is only a single MPDU in the USB frame, then we could + * submit to mac80211 the SKB directly. However, since + * there may be multiple packets in one SKB in stream + * mode, and we need to observe the proper ordering, + * this is non-trivial. + */ + +static void ar9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len) +{ + struct ar9170_rx_head *head; + struct ar9170_rx_macstatus *mac; + struct ar9170_rx_phystatus *phy = NULL; + struct ieee80211_rx_status status; + struct sk_buff *skb; + int mpdu_len; + + if (unlikely(!IS_STARTED(ar) || len < (sizeof(*mac)))) + return ; + + /* Received MPDU */ + mpdu_len = len - sizeof(*mac); + + mac = (void *)(buf + mpdu_len); + if (unlikely(mac->error & AR9170_RX_ERROR_FATAL)) { + /* this frame is too damaged and can't be used - drop it */ + + return ; + } + + switch (mac->status & AR9170_RX_STATUS_MPDU_MASK) { + case AR9170_RX_STATUS_MPDU_FIRST: + /* first mpdu packet has the plcp header */ + if (likely(mpdu_len >= sizeof(struct ar9170_rx_head))) { + head = (void *) buf; + memcpy(&ar->rx_mpdu.plcp, (void *) buf, + sizeof(struct ar9170_rx_head)); + + mpdu_len -= sizeof(struct ar9170_rx_head); + buf += sizeof(struct ar9170_rx_head); + ar->rx_mpdu.has_plcp = true; + } else { + if (ar9170_nag_limiter(ar)) + printk(KERN_ERR "%s: plcp info is clipped.\n", + wiphy_name(ar->hw->wiphy)); + return ; + } + break; + + case AR9170_RX_STATUS_MPDU_LAST: + /* last mpdu has a extra tail with phy status information */ + + if (likely(mpdu_len >= sizeof(struct ar9170_rx_phystatus))) { + mpdu_len -= sizeof(struct ar9170_rx_phystatus); + phy = (void *)(buf + mpdu_len); + } else { + if (ar9170_nag_limiter(ar)) + printk(KERN_ERR "%s: frame tail is clipped.\n", + wiphy_name(ar->hw->wiphy)); + return ; + } + + case AR9170_RX_STATUS_MPDU_MIDDLE: + /* middle mpdus are just data */ + if (unlikely(!ar->rx_mpdu.has_plcp)) { + if (!ar9170_nag_limiter(ar)) + return ; + + printk(KERN_ERR "%s: rx stream did not start " + "with a first_mpdu frame tag.\n", + wiphy_name(ar->hw->wiphy)); + + return ; + } + + head = &ar->rx_mpdu.plcp; + break; + + case AR9170_RX_STATUS_MPDU_SINGLE: + /* single mpdu - has plcp (head) and phy status (tail) */ + head = (void *) buf; + + mpdu_len -= sizeof(struct ar9170_rx_head); + mpdu_len -= sizeof(struct ar9170_rx_phystatus); + + buf += sizeof(struct ar9170_rx_head); + phy = (void *)(buf + mpdu_len); + break; + + default: + BUG_ON(1); + break; + } + + if (unlikely(mpdu_len < FCS_LEN)) + return ; + + memset(&status, 0, sizeof(status)); + if (unlikely(ar9170_rx_mac_status(ar, head, mac, &status))) + return ; + + if (phy) + ar9170_rx_phy_status(ar, phy, &status); + + skb = ar9170_rx_copy_data(buf, mpdu_len); + if (likely(skb)) + ieee80211_rx_irqsafe(ar->hw, skb, &status); +} + +void ar9170_rx(struct ar9170 *ar, struct sk_buff *skb) +{ + unsigned int i, tlen, resplen, wlen = 0, clen = 0; + u8 *tbuf, *respbuf; + + tbuf = skb->data; + tlen = skb->len; + + while (tlen >= 4) { + clen = tbuf[1] << 8 | tbuf[0]; + wlen = ALIGN(clen, 4); + + /* check if this is stream has a valid tag.*/ + if (tbuf[2] != 0 || tbuf[3] != 0x4e) { + /* + * TODO: handle the highly unlikely event that the + * corrupted stream has the TAG at the right position. + */ + + /* check if the frame can be repaired. */ + if (!ar->rx_failover_missing) { + /* this is no "short read". */ + if (ar9170_nag_limiter(ar)) { + printk(KERN_ERR "%s: missing tag!\n", + wiphy_name(ar->hw->wiphy)); + goto err_telluser; + } else + goto err_silent; + } + + if (ar->rx_failover_missing > tlen) { + if (ar9170_nag_limiter(ar)) { + printk(KERN_ERR "%s: possible multi " + "stream corruption!\n", + wiphy_name(ar->hw->wiphy)); + goto err_telluser; + } else + goto err_silent; + } + + memcpy(skb_put(ar->rx_failover, tlen), tbuf, tlen); + ar->rx_failover_missing -= tlen; + + if (ar->rx_failover_missing <= 0) { + /* + * nested ar9170_rx call! + * termination is guranteed, even when the + * combined frame also have a element with + * a bad tag. + */ + + ar->rx_failover_missing = 0; + ar9170_rx(ar, ar->rx_failover); + + skb_reset_tail_pointer(ar->rx_failover); + skb_trim(ar->rx_failover, 0); + } + + return ; + } + + /* check if stream is clipped */ + if (wlen > tlen - 4) { + if (ar->rx_failover_missing) { + /* TODO: handle double stream corruption. */ + if (ar9170_nag_limiter(ar)) { + printk(KERN_ERR "%s: double rx stream " + "corruption!\n", + wiphy_name(ar->hw->wiphy)); + goto err_telluser; + } else + goto err_silent; + } + + /* + * save incomplete data set. + * the firmware will resend the missing bits when + * the rx - descriptor comes round again. + */ + + memcpy(skb_put(ar->rx_failover, tlen), tbuf, tlen); + ar->rx_failover_missing = clen - tlen; + return ; + } + resplen = clen; + respbuf = tbuf + 4; + tbuf += wlen + 4; + tlen -= wlen + 4; + + i = 0; + + /* weird thing, but this is the same in the original driver */ + while (resplen > 2 && i < 12 && + respbuf[0] == 0xff && respbuf[1] == 0xff) { + i += 2; + resplen -= 2; + respbuf += 2; + } + + if (resplen < 4) + continue; + + /* found the 6 * 0xffff marker? */ + if (i == 12) + ar9170_handle_command_response(ar, respbuf, resplen); + else + ar9170_handle_mpdu(ar, respbuf, clen); + } + + if (tlen) { + if (net_ratelimit()) + printk(KERN_ERR "%s: %d bytes of unprocessed " + "data left in rx stream!\n", + wiphy_name(ar->hw->wiphy), tlen); + + goto err_telluser; + } + + return ; + +err_telluser: + printk(KERN_ERR "%s: damaged RX stream data [want:%d, " + "data:%d, rx:%d, pending:%d ]\n", + wiphy_name(ar->hw->wiphy), clen, wlen, tlen, + ar->rx_failover_missing); + + if (ar->rx_failover_missing) + print_hex_dump_bytes("rxbuf:", DUMP_PREFIX_OFFSET, + ar->rx_failover->data, + ar->rx_failover->len); + + print_hex_dump_bytes("stream:", DUMP_PREFIX_OFFSET, + skb->data, skb->len); + + printk(KERN_ERR "%s: please check your hardware and cables, if " + "you see this message frequently.\n", + wiphy_name(ar->hw->wiphy)); + +err_silent: + if (ar->rx_failover_missing) { + skb_reset_tail_pointer(ar->rx_failover); + skb_trim(ar->rx_failover, 0); + ar->rx_failover_missing = 0; + } +} + +#define AR9170_FILL_QUEUE(queue, ai_fs, cwmin, cwmax, _txop) \ +do { \ + queue.aifs = ai_fs; \ + queue.cw_min = cwmin; \ + queue.cw_max = cwmax; \ + queue.txop = _txop; \ +} while (0) + +static int ar9170_op_start(struct ieee80211_hw *hw) +{ + struct ar9170 *ar = hw->priv; + int err, i; + + mutex_lock(&ar->mutex); + + ar->filter_changed = 0; + + /* reinitialize queues statistics */ + memset(&ar->tx_stats, 0, sizeof(ar->tx_stats)); + for (i = 0; i < __AR9170_NUM_TXQ; i++) + ar->tx_stats[i].limit = AR9170_TXQ_DEPTH; + + /* reset QoS defaults */ + AR9170_FILL_QUEUE(ar->edcf[0], 3, 15, 1023, 0); /* BEST EFFORT*/ + AR9170_FILL_QUEUE(ar->edcf[1], 7, 15, 1023, 0); /* BACKGROUND */ + AR9170_FILL_QUEUE(ar->edcf[2], 2, 7, 15, 94); /* VIDEO */ + AR9170_FILL_QUEUE(ar->edcf[3], 2, 3, 7, 47); /* VOICE */ + AR9170_FILL_QUEUE(ar->edcf[4], 2, 3, 7, 0); /* SPECIAL */ + + ar->bad_hw_nagger = jiffies; + + err = ar->open(ar); + if (err) + goto out; + + err = ar9170_init_mac(ar); + if (err) + goto out; + + err = ar9170_set_qos(ar); + if (err) + goto out; + + err = ar9170_init_phy(ar, IEEE80211_BAND_2GHZ); + if (err) + goto out; + + err = ar9170_init_rf(ar); + if (err) + goto out; + + /* start DMA */ + err = ar9170_write_reg(ar, 0x1c3d30, 0x100); + if (err) + goto out; + + ar->state = AR9170_STARTED; + +out: + mutex_unlock(&ar->mutex); + return err; +} + +static void ar9170_op_stop(struct ieee80211_hw *hw) +{ + struct ar9170 *ar = hw->priv; + unsigned int i; + + if (IS_STARTED(ar)) + ar->state = AR9170_IDLE; + + flush_workqueue(ar->hw->workqueue); + + cancel_delayed_work_sync(&ar->tx_janitor); + cancel_work_sync(&ar->filter_config_work); + cancel_work_sync(&ar->beacon_work); + mutex_lock(&ar->mutex); + + if (IS_ACCEPTING_CMD(ar)) { + ar9170_set_leds_state(ar, 0); + + /* stop DMA */ + ar9170_write_reg(ar, 0x1c3d30, 0); + ar->stop(ar); + } + + for (i = 0; i < __AR9170_NUM_TXQ; i++) { + skb_queue_purge(&ar->tx_pending[i]); + skb_queue_purge(&ar->tx_status[i]); + } + mutex_unlock(&ar->mutex); +} + +static int ar9170_tx_prepare(struct ar9170 *ar, struct sk_buff *skb) +{ + struct ieee80211_hdr *hdr; + struct ar9170_tx_control *txc; + struct ieee80211_tx_info *info; + struct ieee80211_tx_rate *txrate; + struct ar9170_tx_info *arinfo; + unsigned int queue = skb_get_queue_mapping(skb); + u16 keytype = 0; + u16 len, icv = 0; + + BUILD_BUG_ON(sizeof(*arinfo) > sizeof(info->rate_driver_data)); + + hdr = (void *)skb->data; + info = IEEE80211_SKB_CB(skb); + len = skb->len; + + txc = (void *)skb_push(skb, sizeof(*txc)); + + if (info->control.hw_key) { + icv = info->control.hw_key->icv_len; + + switch (info->control.hw_key->alg) { + case ALG_WEP: + keytype = AR9170_TX_MAC_ENCR_RC4; + break; + case ALG_TKIP: + keytype = AR9170_TX_MAC_ENCR_RC4; + break; + case ALG_CCMP: + keytype = AR9170_TX_MAC_ENCR_AES; + break; + default: + WARN_ON(1); + goto err_out; + } + } + + /* Length */ + txc->length = cpu_to_le16(len + icv + 4); + + txc->mac_control = cpu_to_le16(AR9170_TX_MAC_HW_DURATION | + AR9170_TX_MAC_BACKOFF); + txc->mac_control |= cpu_to_le16(ar9170_qos_hwmap[queue] << + AR9170_TX_MAC_QOS_SHIFT); + txc->mac_control |= cpu_to_le16(keytype); + txc->phy_control = cpu_to_le32(0); + + if (info->flags & IEEE80211_TX_CTL_NO_ACK) + txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_NO_ACK); + + txrate = &info->control.rates[0]; + if (txrate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT) + txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_PROT_CTS); + else if (txrate->flags & IEEE80211_TX_RC_USE_RTS_CTS) + txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_PROT_RTS); + + arinfo = (void *)info->rate_driver_data; + arinfo->timeout = jiffies + msecs_to_jiffies(AR9170_QUEUE_TIMEOUT); + + if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && + (is_valid_ether_addr(ieee80211_get_DA(hdr)))) { + if (info->flags & IEEE80211_TX_CTL_AMPDU) { + if (unlikely(!info->control.sta)) + goto err_out; + + txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_AGGR); + arinfo->flags = AR9170_TX_FLAG_BLOCK_ACK; + goto out; + } + + txc->mac_control |= cpu_to_le16(AR9170_TX_MAC_RATE_PROBE); + /* + * WARNING: + * Putting the QoS queue bits into an unexplored territory is + * certainly not elegant. + * + * In my defense: This idea provides a reasonable way to + * smuggle valuable information to the tx_status callback. + * Also, the idea behind this bit-abuse came straight from + * the original driver code. + */ + + txc->phy_control |= + cpu_to_le32(queue << AR9170_TX_PHY_QOS_SHIFT); + arinfo->flags = AR9170_TX_FLAG_WAIT_FOR_ACK; + } else { + arinfo->flags = AR9170_TX_FLAG_NO_ACK; + } + +out: + return 0; + +err_out: + skb_pull(skb, sizeof(*txc)); + return -EINVAL; +} + +static void ar9170_tx_prepare_phy(struct ar9170 *ar, struct sk_buff *skb) +{ + struct ar9170_tx_control *txc; + struct ieee80211_tx_info *info; + struct ieee80211_rate *rate = NULL; + struct ieee80211_tx_rate *txrate; + u32 power, chains; + + txc = (void *) skb->data; + info = IEEE80211_SKB_CB(skb); + txrate = &info->control.rates[0]; + + if (txrate->flags & IEEE80211_TX_RC_GREEN_FIELD) + txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_GREENFIELD); + + if (txrate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) + txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_SHORT_PREAMBLE); + + if (txrate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) + txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_BW_40MHZ); + /* this works because 40 MHz is 2 and dup is 3 */ + if (txrate->flags & IEEE80211_TX_RC_DUP_DATA) + txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_BW_40MHZ_DUP); + + if (txrate->flags & IEEE80211_TX_RC_SHORT_GI) + txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_SHORT_GI); + + if (txrate->flags & IEEE80211_TX_RC_MCS) { + u32 r = txrate->idx; + u8 *txpower; + + /* heavy clip control */ + txc->phy_control |= cpu_to_le32((r & 0x7) << 7); + + r <<= AR9170_TX_PHY_MCS_SHIFT; + BUG_ON(r & ~AR9170_TX_PHY_MCS_MASK); + + txc->phy_control |= cpu_to_le32(r & AR9170_TX_PHY_MCS_MASK); + txc->phy_control |= cpu_to_le32(AR9170_TX_PHY_MOD_HT); + + if (txrate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) { + if (info->band == IEEE80211_BAND_5GHZ) + txpower = ar->power_5G_ht40; + else + txpower = ar->power_2G_ht40; + } else { + if (info->band == IEEE80211_BAND_5GHZ) + txpower = ar->power_5G_ht20; + else + txpower = ar->power_2G_ht20; + } + + power = txpower[(txrate->idx) & 7]; + } else { + u8 *txpower; + u32 mod; + u32 phyrate; + u8 idx = txrate->idx; + + if (info->band != IEEE80211_BAND_2GHZ) { + idx += 4; + txpower = ar->power_5G_leg; + mod = AR9170_TX_PHY_MOD_OFDM; + } else { + if (idx < 4) { + txpower = ar->power_2G_cck; + mod = AR9170_TX_PHY_MOD_CCK; + } else { + mod = AR9170_TX_PHY_MOD_OFDM; + txpower = ar->power_2G_ofdm; + } + } + + rate = &__ar9170_ratetable[idx]; + + phyrate = rate->hw_value & 0xF; + power = txpower[(rate->hw_value & 0x30) >> 4]; + phyrate <<= AR9170_TX_PHY_MCS_SHIFT; + + txc->phy_control |= cpu_to_le32(mod); + txc->phy_control |= cpu_to_le32(phyrate); + } + + power <<= AR9170_TX_PHY_TX_PWR_SHIFT; + power &= AR9170_TX_PHY_TX_PWR_MASK; + txc->phy_control |= cpu_to_le32(power); + + /* set TX chains */ + if (ar->eeprom.tx_mask == 1) { + chains = AR9170_TX_PHY_TXCHAIN_1; + } else { + chains = AR9170_TX_PHY_TXCHAIN_2; + + /* >= 36M legacy OFDM - use only one chain */ + if (rate && rate->bitrate >= 360) + chains = AR9170_TX_PHY_TXCHAIN_1; + } + txc->phy_control |= cpu_to_le32(chains << AR9170_TX_PHY_TXCHAIN_SHIFT); +} + +static void ar9170_tx(struct ar9170 *ar) +{ + struct sk_buff *skb; + unsigned long flags; + struct ieee80211_tx_info *info; + struct ar9170_tx_info *arinfo; + unsigned int i, frames, frames_failed, remaining_space; + int err; + bool schedule_garbagecollector = false; + + BUILD_BUG_ON(sizeof(*arinfo) > sizeof(info->rate_driver_data)); + + if (unlikely(!IS_STARTED(ar))) + return ; + + remaining_space = AR9170_TX_MAX_PENDING; + + for (i = 0; i < __AR9170_NUM_TXQ; i++) { + spin_lock_irqsave(&ar->tx_stats_lock, flags); + if (ar->tx_stats[i].len >= ar->tx_stats[i].limit) { +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: queue %d full\n", + wiphy_name(ar->hw->wiphy), i); + + __ar9170_dump_txstats(ar); + printk(KERN_DEBUG "stuck frames: ===> \n"); + ar9170_dump_txqueue(ar, &ar->tx_pending[i]); + ar9170_dump_txqueue(ar, &ar->tx_status[i]); +#endif /* AR9170_QUEUE_DEBUG */ + ieee80211_stop_queue(ar->hw, i); + spin_unlock_irqrestore(&ar->tx_stats_lock, flags); + continue; + } + + frames = min(ar->tx_stats[i].limit - ar->tx_stats[i].len, + skb_queue_len(&ar->tx_pending[i])); + + if (remaining_space < frames) { +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: tx quota reached queue:%d, " + "remaining slots:%d, needed:%d\n", + wiphy_name(ar->hw->wiphy), i, remaining_space, + frames); + + ar9170_dump_txstats(ar); +#endif /* AR9170_QUEUE_DEBUG */ + frames = remaining_space; + } + + ar->tx_stats[i].len += frames; + ar->tx_stats[i].count += frames; + spin_unlock_irqrestore(&ar->tx_stats_lock, flags); + + if (!frames) + continue; + + frames_failed = 0; + while (frames) { + skb = skb_dequeue(&ar->tx_pending[i]); + if (unlikely(!skb)) { + frames_failed += frames; + frames = 0; + break; + } + + info = IEEE80211_SKB_CB(skb); + arinfo = (void *) info->rate_driver_data; + + /* TODO: cancel stuck frames */ + arinfo->timeout = jiffies + + msecs_to_jiffies(AR9170_TX_TIMEOUT); + +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: send frame q:%d =>\n", + wiphy_name(ar->hw->wiphy), i); + ar9170_print_txheader(ar, skb); +#endif /* AR9170_QUEUE_DEBUG */ + + err = ar->tx(ar, skb); + if (unlikely(err)) { + frames_failed++; + dev_kfree_skb_any(skb); + } else { + remaining_space--; + schedule_garbagecollector = true; + } + + frames--; + } + +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: ar9170_tx report for queue %d\n", + wiphy_name(ar->hw->wiphy), i); + + printk(KERN_DEBUG "%s: unprocessed pending frames left:\n", + wiphy_name(ar->hw->wiphy)); + ar9170_dump_txqueue(ar, &ar->tx_pending[i]); +#endif /* AR9170_QUEUE_DEBUG */ + + if (unlikely(frames_failed)) { +#ifdef AR9170_QUEUE_DEBUG + printk(KERN_DEBUG "%s: frames failed =>\n", + wiphy_name(ar->hw->wiphy), frames_failed); +#endif /* AR9170_QUEUE_DEBUG */ + + spin_lock_irqsave(&ar->tx_stats_lock, flags); + ar->tx_stats[i].len -= frames_failed; + ar->tx_stats[i].count -= frames_failed; + ieee80211_wake_queue(ar->hw, i); + spin_unlock_irqrestore(&ar->tx_stats_lock, flags); + } + } + + if (schedule_garbagecollector) + queue_delayed_work(ar->hw->workqueue, + &ar->tx_janitor, + msecs_to_jiffies(AR9170_JANITOR_DELAY)); +} + +int ar9170_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) +{ + struct ar9170 *ar = hw->priv; + struct ieee80211_tx_info *info; + + if (unlikely(!IS_STARTED(ar))) + goto err_free; + + if (unlikely(ar9170_tx_prepare(ar, skb))) + goto err_free; + + info = IEEE80211_SKB_CB(skb); + if (info->flags & IEEE80211_TX_CTL_AMPDU) { + /* drop frame, we do not allow TX A-MPDU aggregation yet. */ + goto err_free; + } else { + unsigned int queue = skb_get_queue_mapping(skb); + + ar9170_tx_prepare_phy(ar, skb); + skb_queue_tail(&ar->tx_pending[queue], skb); + } + + ar9170_tx(ar); + return NETDEV_TX_OK; + +err_free: + dev_kfree_skb_any(skb); + return NETDEV_TX_OK; +} + +static int ar9170_op_add_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct ar9170 *ar = hw->priv; + int err = 0; + + mutex_lock(&ar->mutex); + + if (ar->vif) { + err = -EBUSY; + goto unlock; + } + + ar->vif = conf->vif; + memcpy(ar->mac_addr, conf->mac_addr, ETH_ALEN); + + if (modparam_nohwcrypt || (ar->vif->type != NL80211_IFTYPE_STATION)) { + ar->rx_software_decryption = true; + ar->disable_offload = true; + } + + ar->cur_filter = 0; + ar->want_filter = AR9170_MAC_REG_FTF_DEFAULTS; + err = ar9170_update_frame_filter(ar); + if (err) + goto unlock; + + err = ar9170_set_operating_mode(ar); + +unlock: + mutex_unlock(&ar->mutex); + return err; +} + +static void ar9170_op_remove_interface(struct ieee80211_hw *hw, + struct ieee80211_if_init_conf *conf) +{ + struct ar9170 *ar = hw->priv; + + mutex_lock(&ar->mutex); + ar->vif = NULL; + ar->want_filter = 0; + ar9170_update_frame_filter(ar); + ar9170_set_beacon_timers(ar); + dev_kfree_skb(ar->beacon); + ar->beacon = NULL; + ar->sniffer_enabled = false; + ar->rx_software_decryption = false; + ar9170_set_operating_mode(ar); + mutex_unlock(&ar->mutex); +} + +static int ar9170_op_config(struct ieee80211_hw *hw, u32 changed) +{ + struct ar9170 *ar = hw->priv; + int err = 0; + + mutex_lock(&ar->mutex); + + if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { + /* TODO */ + err = 0; + } + + if (changed & IEEE80211_CONF_CHANGE_PS) { + /* TODO */ + err = 0; + } + + if (changed & IEEE80211_CONF_CHANGE_POWER) { + /* TODO */ + err = 0; + } + + if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) { + /* + * is it long_frame_max_tx_count or short_frame_max_tx_count? + */ + + err = ar9170_set_hwretry_limit(ar, + ar->hw->conf.long_frame_max_tx_count); + if (err) + goto out; + } + + if (changed & BSS_CHANGED_BEACON_INT) { + err = ar9170_set_beacon_timers(ar); + if (err) + goto out; + } + + if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { + + /* adjust slot time for 5 GHz */ + err = ar9170_set_slot_time(ar); + if (err) + goto out; + + err = ar9170_set_dyn_sifs_ack(ar); + if (err) + goto out; + + err = ar9170_set_channel(ar, hw->conf.channel, + AR9170_RFI_NONE, + nl80211_to_ar9170(hw->conf.channel_type)); + if (err) + goto out; + } + +out: + mutex_unlock(&ar->mutex); + return err; +} + +static void ar9170_set_filters(struct work_struct *work) +{ + struct ar9170 *ar = container_of(work, struct ar9170, + filter_config_work); + int err; + + if (unlikely(!IS_STARTED(ar))) + return ; + + mutex_lock(&ar->mutex); + if (test_and_clear_bit(AR9170_FILTER_CHANGED_MODE, + &ar->filter_changed)) { + err = ar9170_set_operating_mode(ar); + if (err) + goto unlock; + } + + if (test_and_clear_bit(AR9170_FILTER_CHANGED_MULTICAST, + &ar->filter_changed)) { + err = ar9170_update_multicast(ar); + if (err) + goto unlock; + } + + if (test_and_clear_bit(AR9170_FILTER_CHANGED_FRAMEFILTER, + &ar->filter_changed)) { + err = ar9170_update_frame_filter(ar); + if (err) + goto unlock; + } + +unlock: + mutex_unlock(&ar->mutex); +} + +static void ar9170_op_configure_filter(struct ieee80211_hw *hw, + unsigned int changed_flags, + unsigned int *new_flags, + int mc_count, struct dev_mc_list *mclist) +{ + struct ar9170 *ar = hw->priv; + + /* mask supported flags */ + *new_flags &= FIF_ALLMULTI | FIF_CONTROL | FIF_BCN_PRBRESP_PROMISC | + FIF_PROMISC_IN_BSS | FIF_FCSFAIL | FIF_PLCPFAIL; + ar->filter_state = *new_flags; + /* + * We can support more by setting the sniffer bit and + * then checking the error flags, later. + */ + + if (changed_flags & FIF_ALLMULTI) { + if (*new_flags & FIF_ALLMULTI) { + ar->want_mc_hash = ~0ULL; + } else { + u64 mchash; + int i; + + /* always get broadcast frames */ + mchash = 1ULL << (0xff >> 2); + + for (i = 0; i < mc_count; i++) { + if (WARN_ON(!mclist)) + break; + mchash |= 1ULL << (mclist->dmi_addr[5] >> 2); + mclist = mclist->next; + } + ar->want_mc_hash = mchash; + } + set_bit(AR9170_FILTER_CHANGED_MULTICAST, &ar->filter_changed); + } + + if (changed_flags & FIF_CONTROL) { + u32 filter = AR9170_MAC_REG_FTF_PSPOLL | + AR9170_MAC_REG_FTF_RTS | + AR9170_MAC_REG_FTF_CTS | + AR9170_MAC_REG_FTF_ACK | + AR9170_MAC_REG_FTF_CFE | + AR9170_MAC_REG_FTF_CFE_ACK; + + if (*new_flags & FIF_CONTROL) + ar->want_filter = ar->cur_filter | filter; + else + ar->want_filter = ar->cur_filter & ~filter; + + set_bit(AR9170_FILTER_CHANGED_FRAMEFILTER, + &ar->filter_changed); + } + + if (changed_flags & FIF_PROMISC_IN_BSS) { + ar->sniffer_enabled = ((*new_flags) & FIF_PROMISC_IN_BSS) != 0; + set_bit(AR9170_FILTER_CHANGED_MODE, + &ar->filter_changed); + } + + if (likely(IS_STARTED(ar))) + queue_work(ar->hw->workqueue, &ar->filter_config_work); +} + +static void ar9170_op_bss_info_changed(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, + u32 changed) +{ + struct ar9170 *ar = hw->priv; + int err = 0; + + mutex_lock(&ar->mutex); + + if (changed & BSS_CHANGED_BSSID) { + memcpy(ar->bssid, bss_conf->bssid, ETH_ALEN); + err = ar9170_set_operating_mode(ar); + if (err) + goto out; + } + + if (changed & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED)) { + err = ar9170_update_beacon(ar); + if (err) + goto out; + + err = ar9170_set_beacon_timers(ar); + if (err) + goto out; + } + + if (changed & BSS_CHANGED_ASSOC) { +#ifndef CONFIG_AR9170_LEDS + /* enable assoc LED. */ + err = ar9170_set_leds_state(ar, bss_conf->assoc ? 2 : 0); +#endif /* CONFIG_AR9170_LEDS */ + } + + if (changed & BSS_CHANGED_BEACON_INT) { + err = ar9170_set_beacon_timers(ar); + if (err) + goto out; + } + + if (changed & BSS_CHANGED_HT) { + /* TODO */ + err = 0; + } + + if (changed & BSS_CHANGED_ERP_SLOT) { + err = ar9170_set_slot_time(ar); + if (err) + goto out; + } + + if (changed & BSS_CHANGED_BASIC_RATES) { + err = ar9170_set_basic_rates(ar); + if (err) + goto out; + } + +out: + mutex_unlock(&ar->mutex); +} + +static u64 ar9170_op_get_tsf(struct ieee80211_hw *hw) +{ + struct ar9170 *ar = hw->priv; + int err; + u32 tsf_low; + u32 tsf_high; + u64 tsf; + + mutex_lock(&ar->mutex); + err = ar9170_read_reg(ar, AR9170_MAC_REG_TSF_L, &tsf_low); + if (!err) + err = ar9170_read_reg(ar, AR9170_MAC_REG_TSF_H, &tsf_high); + mutex_unlock(&ar->mutex); + + if (WARN_ON(err)) + return 0; + + tsf = tsf_high; + tsf = (tsf << 32) | tsf_low; + return tsf; +} + +static int ar9170_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, + struct ieee80211_vif *vif, struct ieee80211_sta *sta, + struct ieee80211_key_conf *key) +{ + struct ar9170 *ar = hw->priv; + int err = 0, i; + u8 ktype; + + if ((!ar->vif) || (ar->disable_offload)) + return -EOPNOTSUPP; + + switch (key->alg) { + case ALG_WEP: + if (key->keylen == WLAN_KEY_LEN_WEP40) + ktype = AR9170_ENC_ALG_WEP64; + else + ktype = AR9170_ENC_ALG_WEP128; + break; + case ALG_TKIP: + ktype = AR9170_ENC_ALG_TKIP; + break; + case ALG_CCMP: + ktype = AR9170_ENC_ALG_AESCCMP; + break; + default: + return -EOPNOTSUPP; + } + + mutex_lock(&ar->mutex); + if (cmd == SET_KEY) { + if (unlikely(!IS_STARTED(ar))) { + err = -EOPNOTSUPP; + goto out; + } + + /* group keys need all-zeroes address */ + if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) + sta = NULL; + + if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { + for (i = 0; i < 64; i++) + if (!(ar->usedkeys & BIT(i))) + break; + if (i == 64) { + ar->rx_software_decryption = true; + ar9170_set_operating_mode(ar); + err = -ENOSPC; + goto out; + } + } else { + i = 64 + key->keyidx; + } + + key->hw_key_idx = i; + + err = ar9170_upload_key(ar, i, sta ? sta->addr : NULL, ktype, 0, + key->key, min_t(u8, 16, key->keylen)); + if (err) + goto out; + + if (key->alg == ALG_TKIP) { + err = ar9170_upload_key(ar, i, sta ? sta->addr : NULL, + ktype, 1, key->key + 16, 16); + if (err) + goto out; + + /* + * hardware is not capable generating the MMIC + * for fragmented frames! + */ + key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; + } + + if (i < 64) + ar->usedkeys |= BIT(i); + + key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; + } else { + if (unlikely(!IS_STARTED(ar))) { + /* The device is gone... together with the key ;-) */ + err = 0; + goto out; + } + + err = ar9170_disable_key(ar, key->hw_key_idx); + if (err) + goto out; + + if (key->hw_key_idx < 64) { + ar->usedkeys &= ~BIT(key->hw_key_idx); + } else { + err = ar9170_upload_key(ar, key->hw_key_idx, NULL, + AR9170_ENC_ALG_NONE, 0, + NULL, 0); + if (err) + goto out; + + if (key->alg == ALG_TKIP) { + err = ar9170_upload_key(ar, key->hw_key_idx, + NULL, + AR9170_ENC_ALG_NONE, 1, + NULL, 0); + if (err) + goto out; + } + + } + } + + ar9170_regwrite_begin(ar); + ar9170_regwrite(AR9170_MAC_REG_ROLL_CALL_TBL_L, ar->usedkeys); + ar9170_regwrite(AR9170_MAC_REG_ROLL_CALL_TBL_H, ar->usedkeys >> 32); + ar9170_regwrite_finish(); + err = ar9170_regwrite_result(); + +out: + mutex_unlock(&ar->mutex); + + return err; +} + +static void ar9170_sta_notify(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + enum sta_notify_cmd cmd, + struct ieee80211_sta *sta) +{ +} + +static int ar9170_get_stats(struct ieee80211_hw *hw, + struct ieee80211_low_level_stats *stats) +{ + struct ar9170 *ar = hw->priv; + u32 val; + int err; + + mutex_lock(&ar->mutex); + err = ar9170_read_reg(ar, AR9170_MAC_REG_TX_RETRY, &val); + ar->stats.dot11ACKFailureCount += val; + + memcpy(stats, &ar->stats, sizeof(*stats)); + mutex_unlock(&ar->mutex); + + return 0; +} + +static int ar9170_get_tx_stats(struct ieee80211_hw *hw, + struct ieee80211_tx_queue_stats *tx_stats) +{ + struct ar9170 *ar = hw->priv; + + spin_lock_bh(&ar->tx_stats_lock); + memcpy(tx_stats, ar->tx_stats, sizeof(tx_stats[0]) * hw->queues); + spin_unlock_bh(&ar->tx_stats_lock); + + return 0; +} + +static int ar9170_conf_tx(struct ieee80211_hw *hw, u16 queue, + const struct ieee80211_tx_queue_params *param) +{ + struct ar9170 *ar = hw->priv; + int ret; + + mutex_lock(&ar->mutex); + if ((param) && !(queue > __AR9170_NUM_TXQ)) { + memcpy(&ar->edcf[ar9170_qos_hwmap[queue]], + param, sizeof(*param)); + + ret = ar9170_set_qos(ar); + } else + ret = -EINVAL; + + mutex_unlock(&ar->mutex); + return ret; +} + +static int ar9170_ampdu_action(struct ieee80211_hw *hw, + enum ieee80211_ampdu_mlme_action action, + struct ieee80211_sta *sta, u16 tid, u16 *ssn) +{ + switch (action) { + case IEEE80211_AMPDU_RX_START: + case IEEE80211_AMPDU_RX_STOP: + /* + * Something goes wrong -- RX locks up + * after a while of receiving aggregated + * frames -- not enabling for now. + */ + return -EOPNOTSUPP; + default: + return -EOPNOTSUPP; + } +} + +static const struct ieee80211_ops ar9170_ops = { + .start = ar9170_op_start, + .stop = ar9170_op_stop, + .tx = ar9170_op_tx, + .add_interface = ar9170_op_add_interface, + .remove_interface = ar9170_op_remove_interface, + .config = ar9170_op_config, + .configure_filter = ar9170_op_configure_filter, + .conf_tx = ar9170_conf_tx, + .bss_info_changed = ar9170_op_bss_info_changed, + .get_tsf = ar9170_op_get_tsf, + .set_key = ar9170_set_key, + .sta_notify = ar9170_sta_notify, + .get_stats = ar9170_get_stats, + .get_tx_stats = ar9170_get_tx_stats, + .ampdu_action = ar9170_ampdu_action, +}; + +void *ar9170_alloc(size_t priv_size) +{ + struct ieee80211_hw *hw; + struct ar9170 *ar; + struct sk_buff *skb; + int i; + + /* + * this buffer is used for rx stream reconstruction. + * Under heavy load this device (or the transport layer?) + * tends to split the streams into seperate rx descriptors. + */ + + skb = __dev_alloc_skb(AR9170_MAX_RX_BUFFER_SIZE, GFP_KERNEL); + if (!skb) + goto err_nomem; + + hw = ieee80211_alloc_hw(priv_size, &ar9170_ops); + if (!hw) + goto err_nomem; + + ar = hw->priv; + ar->hw = hw; + ar->rx_failover = skb; + + mutex_init(&ar->mutex); + spin_lock_init(&ar->cmdlock); + spin_lock_init(&ar->tx_stats_lock); + for (i = 0; i < __AR9170_NUM_TXQ; i++) { + skb_queue_head_init(&ar->tx_status[i]); + skb_queue_head_init(&ar->tx_pending[i]); + } + ar9170_rx_reset_rx_mpdu(ar); + INIT_WORK(&ar->filter_config_work, ar9170_set_filters); + INIT_WORK(&ar->beacon_work, ar9170_new_beacon); + INIT_DELAYED_WORK(&ar->tx_janitor, ar9170_tx_janitor); + + /* all hw supports 2.4 GHz, so set channel to 1 by default */ + ar->channel = &ar9170_2ghz_chantable[0]; + + /* first part of wiphy init */ + ar->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_WDS) | + BIT(NL80211_IFTYPE_ADHOC); + ar->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS | + IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | + IEEE80211_HW_SIGNAL_DBM | + IEEE80211_HW_NOISE_DBM; + + ar->hw->queues = __AR9170_NUM_TXQ; + ar->hw->extra_tx_headroom = 8; + ar->hw->sta_data_size = sizeof(struct ar9170_sta_info); + + ar->hw->max_rates = 1; + ar->hw->max_rate_tries = 3; + + for (i = 0; i < ARRAY_SIZE(ar->noise); i++) + ar->noise[i] = -95; /* ATH_DEFAULT_NOISE_FLOOR */ + + return ar; + +err_nomem: + kfree_skb(skb); + return ERR_PTR(-ENOMEM); +} + +static int ar9170_read_eeprom(struct ar9170 *ar) +{ +#define RW 8 /* number of words to read at once */ +#define RB (sizeof(u32) * RW) + DECLARE_MAC_BUF(mbuf); + u8 *eeprom = (void *)&ar->eeprom; + u8 *addr = ar->eeprom.mac_address; + __le32 offsets[RW]; + int i, j, err, bands = 0; + + BUILD_BUG_ON(sizeof(ar->eeprom) & 3); + + BUILD_BUG_ON(RB > AR9170_MAX_CMD_LEN - 4); +#ifndef __CHECKER__ + /* don't want to handle trailing remains */ + BUILD_BUG_ON(sizeof(ar->eeprom) % RB); +#endif + + for (i = 0; i < sizeof(ar->eeprom)/RB; i++) { + for (j = 0; j < RW; j++) + offsets[j] = cpu_to_le32(AR9170_EEPROM_START + + RB * i + 4 * j); + + err = ar->exec_cmd(ar, AR9170_CMD_RREG, + RB, (u8 *) &offsets, + RB, eeprom + RB * i); + if (err) + return err; + } + +#undef RW +#undef RB + + if (ar->eeprom.length == cpu_to_le16(0xFFFF)) + return -ENODATA; + + if (ar->eeprom.operating_flags & AR9170_OPFLAG_2GHZ) { + ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &ar9170_band_2GHz; + bands++; + } + if (ar->eeprom.operating_flags & AR9170_OPFLAG_5GHZ) { + ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &ar9170_band_5GHz; + bands++; + } + /* + * I measured this, a bandswitch takes roughly + * 135 ms and a frequency switch about 80. + * + * FIXME: measure these values again once EEPROM settings + * are used, that will influence them! + */ + if (bands == 2) + ar->hw->channel_change_time = 135 * 1000; + else + ar->hw->channel_change_time = 80 * 1000; + + ar->regulatory.current_rd = le16_to_cpu(ar->eeprom.reg_domain[0]); + ar->regulatory.current_rd_ext = le16_to_cpu(ar->eeprom.reg_domain[1]); + + /* second part of wiphy init */ + SET_IEEE80211_PERM_ADDR(ar->hw, addr); + + return bands ? 0 : -EINVAL; +} + +static int ar9170_reg_notifier(struct wiphy *wiphy, + struct regulatory_request *request) +{ + struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); + struct ar9170 *ar = hw->priv; + + return ath_reg_notifier_apply(wiphy, request, &ar->regulatory); +} + +int ar9170_register(struct ar9170 *ar, struct device *pdev) +{ + int err; + + /* try to read EEPROM, init MAC addr */ + err = ar9170_read_eeprom(ar); + if (err) + goto err_out; + + err = ath_regd_init(&ar->regulatory, ar->hw->wiphy, + ar9170_reg_notifier); + if (err) + goto err_out; + + err = ieee80211_register_hw(ar->hw); + if (err) + goto err_out; + + if (!ath_is_world_regd(&ar->regulatory)) + regulatory_hint(ar->hw->wiphy, ar->regulatory.alpha2); + + err = ar9170_init_leds(ar); + if (err) + goto err_unreg; + +#ifdef CONFIG_AR9170_LEDS + err = ar9170_register_leds(ar); + if (err) + goto err_unreg; +#endif /* CONFIG_AR9170_LEDS */ + + dev_info(pdev, "Atheros AR9170 is registered as '%s'\n", + wiphy_name(ar->hw->wiphy)); + + return err; + +err_unreg: + ieee80211_unregister_hw(ar->hw); + +err_out: + return err; +} + +void ar9170_unregister(struct ar9170 *ar) +{ +#ifdef CONFIG_AR9170_LEDS + ar9170_unregister_leds(ar); +#endif /* CONFIG_AR9170_LEDS */ + + kfree_skb(ar->rx_failover); + ieee80211_unregister_hw(ar->hw); + mutex_destroy(&ar->mutex); +} diff --git a/drivers/net/wireless/ath/ar9170/phy.c b/drivers/net/wireless/ath/ar9170/phy.c new file mode 100644 index 00000000000..df86f70cd81 --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/phy.c @@ -0,0 +1,1240 @@ +/* + * Atheros AR9170 driver + * + * PHY and RF code + * + * 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 <linux/bitrev.h> +#include "ar9170.h" +#include "cmd.h" + +static int ar9170_init_power_cal(struct ar9170 *ar) +{ + ar9170_regwrite_begin(ar); + + ar9170_regwrite(0x1bc000 + 0x993c, 0x7f); + ar9170_regwrite(0x1bc000 + 0x9934, 0x3f3f3f3f); + ar9170_regwrite(0x1bc000 + 0x9938, 0x3f3f3f3f); + ar9170_regwrite(0x1bc000 + 0xa234, 0x3f3f3f3f); + ar9170_regwrite(0x1bc000 + 0xa238, 0x3f3f3f3f); + ar9170_regwrite(0x1bc000 + 0xa38c, 0x3f3f3f3f); + ar9170_regwrite(0x1bc000 + 0xa390, 0x3f3f3f3f); + ar9170_regwrite(0x1bc000 + 0xa3cc, 0x3f3f3f3f); + ar9170_regwrite(0x1bc000 + 0xa3d0, 0x3f3f3f3f); + ar9170_regwrite(0x1bc000 + 0xa3d4, 0x3f3f3f3f); + + ar9170_regwrite_finish(); + return ar9170_regwrite_result(); +} + +struct ar9170_phy_init { + u32 reg, _5ghz_20, _5ghz_40, _2ghz_40, _2ghz_20; +}; + +static struct ar9170_phy_init ar5416_phy_init[] = { + { 0x1c5800, 0x00000007, 0x00000007, 0x00000007, 0x00000007, }, + { 0x1c5804, 0x00000300, 0x000003c4, 0x000003c4, 0x00000300, }, + { 0x1c5808, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c580c, 0xad848e19, 0xad848e19, 0xad848e19, 0xad848e19, }, + { 0x1c5810, 0x7d14e000, 0x7d14e000, 0x7d14e000, 0x7d14e000, }, + { 0x1c5814, 0x9c0a9f6b, 0x9c0a9f6b, 0x9c0a9f6b, 0x9c0a9f6b, }, + { 0x1c5818, 0x00000090, 0x00000090, 0x00000090, 0x00000090, }, + { 0x1c581c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5820, 0x02020200, 0x02020200, 0x02020200, 0x02020200, }, + { 0x1c5824, 0x00000e0e, 0x00000e0e, 0x00000e0e, 0x00000e0e, }, + { 0x1c5828, 0x0a020001, 0x0a020001, 0x0a020001, 0x0a020001, }, + { 0x1c582c, 0x0000a000, 0x0000a000, 0x0000a000, 0x0000a000, }, + { 0x1c5830, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5834, 0x00000e0e, 0x00000e0e, 0x00000e0e, 0x00000e0e, }, + { 0x1c5838, 0x00000007, 0x00000007, 0x00000007, 0x00000007, }, + { 0x1c583c, 0x00200400, 0x00200400, 0x00200400, 0x00200400, }, + { 0x1c5840, 0x206a002e, 0x206a002e, 0x206a002e, 0x206a002e, }, + { 0x1c5844, 0x1372161e, 0x13721c1e, 0x13721c24, 0x137216a4, }, + { 0x1c5848, 0x001a6a65, 0x001a6a65, 0x00197a68, 0x00197a68, }, + { 0x1c584c, 0x1284233c, 0x1284233c, 0x1284233c, 0x1284233c, }, + { 0x1c5850, 0x6c48b4e4, 0x6c48b4e4, 0x6c48b0e4, 0x6c48b0e4, }, + { 0x1c5854, 0x00000859, 0x00000859, 0x00000859, 0x00000859, }, + { 0x1c5858, 0x7ec80d2e, 0x7ec80d2e, 0x7ec80d2e, 0x7ec80d2e, }, + { 0x1c585c, 0x31395c5e, 0x31395c5e, 0x31395c5e, 0x31395c5e, }, + { 0x1c5860, 0x0004dd10, 0x0004dd10, 0x0004dd20, 0x0004dd20, }, + { 0x1c5868, 0x409a4190, 0x409a4190, 0x409a4190, 0x409a4190, }, + { 0x1c586c, 0x050cb081, 0x050cb081, 0x050cb081, 0x050cb081, }, + { 0x1c5900, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5904, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5908, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c590c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5914, 0x000007d0, 0x000007d0, 0x00000898, 0x00000898, }, + { 0x1c5918, 0x00000118, 0x00000230, 0x00000268, 0x00000134, }, + { 0x1c591c, 0x10000fff, 0x10000fff, 0x10000fff, 0x10000fff, }, + { 0x1c5920, 0x0510081c, 0x0510081c, 0x0510001c, 0x0510001c, }, + { 0x1c5924, 0xd0058a15, 0xd0058a15, 0xd0058a15, 0xd0058a15, }, + { 0x1c5928, 0x00000001, 0x00000001, 0x00000001, 0x00000001, }, + { 0x1c592c, 0x00000004, 0x00000004, 0x00000004, 0x00000004, }, + { 0x1c5934, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, }, + { 0x1c5938, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, }, + { 0x1c593c, 0x0000007f, 0x0000007f, 0x0000007f, 0x0000007f, }, + { 0x1c5944, 0xdfb81020, 0xdfb81020, 0xdfb81020, 0xdfb81020, }, + { 0x1c5948, 0x9280b212, 0x9280b212, 0x9280b212, 0x9280b212, }, + { 0x1c594c, 0x00020028, 0x00020028, 0x00020028, 0x00020028, }, + { 0x1c5954, 0x5d50e188, 0x5d50e188, 0x5d50e188, 0x5d50e188, }, + { 0x1c5958, 0x00081fff, 0x00081fff, 0x00081fff, 0x00081fff, }, + { 0x1c5960, 0x00009b40, 0x00009b40, 0x00009b40, 0x00009b40, }, + { 0x1c5964, 0x00001120, 0x00001120, 0x00001120, 0x00001120, }, + { 0x1c5970, 0x190fb515, 0x190fb515, 0x190fb515, 0x190fb515, }, + { 0x1c5974, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5978, 0x00000001, 0x00000001, 0x00000001, 0x00000001, }, + { 0x1c597c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5980, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5984, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5988, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c598c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5990, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5994, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5998, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c599c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c59a0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c59a4, 0x00000007, 0x00000007, 0x00000007, 0x00000007, }, + { 0x1c59a8, 0x001fff00, 0x001fff00, 0x001fff00, 0x001fff00, }, + { 0x1c59ac, 0x006f00c4, 0x006f00c4, 0x006f00c4, 0x006f00c4, }, + { 0x1c59b0, 0x03051000, 0x03051000, 0x03051000, 0x03051000, }, + { 0x1c59b4, 0x00000820, 0x00000820, 0x00000820, 0x00000820, }, + { 0x1c59c0, 0x038919be, 0x038919be, 0x038919be, 0x038919be, }, + { 0x1c59c4, 0x06336f77, 0x06336f77, 0x06336f77, 0x06336f77, }, + { 0x1c59c8, 0x60f6532c, 0x60f6532c, 0x60f6532c, 0x60f6532c, }, + { 0x1c59cc, 0x08f186c8, 0x08f186c8, 0x08f186c8, 0x08f186c8, }, + { 0x1c59d0, 0x00046384, 0x00046384, 0x00046384, 0x00046384, }, + { 0x1c59d4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c59d8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c59dc, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c59e0, 0x00000200, 0x00000200, 0x00000200, 0x00000200, }, + { 0x1c59e4, 0x64646464, 0x64646464, 0x64646464, 0x64646464, }, + { 0x1c59e8, 0x3c787878, 0x3c787878, 0x3c787878, 0x3c787878, }, + { 0x1c59ec, 0x000000aa, 0x000000aa, 0x000000aa, 0x000000aa, }, + { 0x1c59f0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c59fc, 0x00001042, 0x00001042, 0x00001042, 0x00001042, }, + { 0x1c5a00, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5a04, 0x00000040, 0x00000040, 0x00000040, 0x00000040, }, + { 0x1c5a08, 0x00000080, 0x00000080, 0x00000080, 0x00000080, }, + { 0x1c5a0c, 0x000001a1, 0x000001a1, 0x00000141, 0x00000141, }, + { 0x1c5a10, 0x000001e1, 0x000001e1, 0x00000181, 0x00000181, }, + { 0x1c5a14, 0x00000021, 0x00000021, 0x000001c1, 0x000001c1, }, + { 0x1c5a18, 0x00000061, 0x00000061, 0x00000001, 0x00000001, }, + { 0x1c5a1c, 0x00000168, 0x00000168, 0x00000041, 0x00000041, }, + { 0x1c5a20, 0x000001a8, 0x000001a8, 0x000001a8, 0x000001a8, }, + { 0x1c5a24, 0x000001e8, 0x000001e8, 0x000001e8, 0x000001e8, }, + { 0x1c5a28, 0x00000028, 0x00000028, 0x00000028, 0x00000028, }, + { 0x1c5a2c, 0x00000068, 0x00000068, 0x00000068, 0x00000068, }, + { 0x1c5a30, 0x00000189, 0x00000189, 0x000000a8, 0x000000a8, }, + { 0x1c5a34, 0x000001c9, 0x000001c9, 0x00000169, 0x00000169, }, + { 0x1c5a38, 0x00000009, 0x00000009, 0x000001a9, 0x000001a9, }, + { 0x1c5a3c, 0x00000049, 0x00000049, 0x000001e9, 0x000001e9, }, + { 0x1c5a40, 0x00000089, 0x00000089, 0x00000029, 0x00000029, }, + { 0x1c5a44, 0x00000170, 0x00000170, 0x00000069, 0x00000069, }, + { 0x1c5a48, 0x000001b0, 0x000001b0, 0x00000190, 0x00000190, }, + { 0x1c5a4c, 0x000001f0, 0x000001f0, 0x000001d0, 0x000001d0, }, + { 0x1c5a50, 0x00000030, 0x00000030, 0x00000010, 0x00000010, }, + { 0x1c5a54, 0x00000070, 0x00000070, 0x00000050, 0x00000050, }, + { 0x1c5a58, 0x00000191, 0x00000191, 0x00000090, 0x00000090, }, + { 0x1c5a5c, 0x000001d1, 0x000001d1, 0x00000151, 0x00000151, }, + { 0x1c5a60, 0x00000011, 0x00000011, 0x00000191, 0x00000191, }, + { 0x1c5a64, 0x00000051, 0x00000051, 0x000001d1, 0x000001d1, }, + { 0x1c5a68, 0x00000091, 0x00000091, 0x00000011, 0x00000011, }, + { 0x1c5a6c, 0x000001b8, 0x000001b8, 0x00000051, 0x00000051, }, + { 0x1c5a70, 0x000001f8, 0x000001f8, 0x00000198, 0x00000198, }, + { 0x1c5a74, 0x00000038, 0x00000038, 0x000001d8, 0x000001d8, }, + { 0x1c5a78, 0x00000078, 0x00000078, 0x00000018, 0x00000018, }, + { 0x1c5a7c, 0x00000199, 0x00000199, 0x00000058, 0x00000058, }, + { 0x1c5a80, 0x000001d9, 0x000001d9, 0x00000098, 0x00000098, }, + { 0x1c5a84, 0x00000019, 0x00000019, 0x00000159, 0x00000159, }, + { 0x1c5a88, 0x00000059, 0x00000059, 0x00000199, 0x00000199, }, + { 0x1c5a8c, 0x00000099, 0x00000099, 0x000001d9, 0x000001d9, }, + { 0x1c5a90, 0x000000d9, 0x000000d9, 0x00000019, 0x00000019, }, + { 0x1c5a94, 0x000000f9, 0x000000f9, 0x00000059, 0x00000059, }, + { 0x1c5a98, 0x000000f9, 0x000000f9, 0x00000099, 0x00000099, }, + { 0x1c5a9c, 0x000000f9, 0x000000f9, 0x000000d9, 0x000000d9, }, + { 0x1c5aa0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5aa4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5aa8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5aac, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ab0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ab4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ab8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5abc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ac0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ac4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ac8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5acc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ad0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ad4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ad8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5adc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ae0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ae4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5ae8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5aec, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5af0, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5af4, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5af8, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5afc, 0x000000f9, 0x000000f9, 0x000000f9, 0x000000f9, }, + { 0x1c5b00, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5b04, 0x00000001, 0x00000001, 0x00000001, 0x00000001, }, + { 0x1c5b08, 0x00000002, 0x00000002, 0x00000002, 0x00000002, }, + { 0x1c5b0c, 0x00000003, 0x00000003, 0x00000003, 0x00000003, }, + { 0x1c5b10, 0x00000004, 0x00000004, 0x00000004, 0x00000004, }, + { 0x1c5b14, 0x00000005, 0x00000005, 0x00000005, 0x00000005, }, + { 0x1c5b18, 0x00000008, 0x00000008, 0x00000008, 0x00000008, }, + { 0x1c5b1c, 0x00000009, 0x00000009, 0x00000009, 0x00000009, }, + { 0x1c5b20, 0x0000000a, 0x0000000a, 0x0000000a, 0x0000000a, }, + { 0x1c5b24, 0x0000000b, 0x0000000b, 0x0000000b, 0x0000000b, }, + { 0x1c5b28, 0x0000000c, 0x0000000c, 0x0000000c, 0x0000000c, }, + { 0x1c5b2c, 0x0000000d, 0x0000000d, 0x0000000d, 0x0000000d, }, + { 0x1c5b30, 0x00000010, 0x00000010, 0x00000010, 0x00000010, }, + { 0x1c5b34, 0x00000011, 0x00000011, 0x00000011, 0x00000011, }, + { 0x1c5b38, 0x00000012, 0x00000012, 0x00000012, 0x00000012, }, + { 0x1c5b3c, 0x00000013, 0x00000013, 0x00000013, 0x00000013, }, + { 0x1c5b40, 0x00000014, 0x00000014, 0x00000014, 0x00000014, }, + { 0x1c5b44, 0x00000015, 0x00000015, 0x00000015, 0x00000015, }, + { 0x1c5b48, 0x00000018, 0x00000018, 0x00000018, 0x00000018, }, + { 0x1c5b4c, 0x00000019, 0x00000019, 0x00000019, 0x00000019, }, + { 0x1c5b50, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a, }, + { 0x1c5b54, 0x0000001b, 0x0000001b, 0x0000001b, 0x0000001b, }, + { 0x1c5b58, 0x0000001c, 0x0000001c, 0x0000001c, 0x0000001c, }, + { 0x1c5b5c, 0x0000001d, 0x0000001d, 0x0000001d, 0x0000001d, }, + { 0x1c5b60, 0x00000020, 0x00000020, 0x00000020, 0x00000020, }, + { 0x1c5b64, 0x00000021, 0x00000021, 0x00000021, 0x00000021, }, + { 0x1c5b68, 0x00000022, 0x00000022, 0x00000022, 0x00000022, }, + { 0x1c5b6c, 0x00000023, 0x00000023, 0x00000023, 0x00000023, }, + { 0x1c5b70, 0x00000024, 0x00000024, 0x00000024, 0x00000024, }, + { 0x1c5b74, 0x00000025, 0x00000025, 0x00000025, 0x00000025, }, + { 0x1c5b78, 0x00000028, 0x00000028, 0x00000028, 0x00000028, }, + { 0x1c5b7c, 0x00000029, 0x00000029, 0x00000029, 0x00000029, }, + { 0x1c5b80, 0x0000002a, 0x0000002a, 0x0000002a, 0x0000002a, }, + { 0x1c5b84, 0x0000002b, 0x0000002b, 0x0000002b, 0x0000002b, }, + { 0x1c5b88, 0x0000002c, 0x0000002c, 0x0000002c, 0x0000002c, }, + { 0x1c5b8c, 0x0000002d, 0x0000002d, 0x0000002d, 0x0000002d, }, + { 0x1c5b90, 0x00000030, 0x00000030, 0x00000030, 0x00000030, }, + { 0x1c5b94, 0x00000031, 0x00000031, 0x00000031, 0x00000031, }, + { 0x1c5b98, 0x00000032, 0x00000032, 0x00000032, 0x00000032, }, + { 0x1c5b9c, 0x00000033, 0x00000033, 0x00000033, 0x00000033, }, + { 0x1c5ba0, 0x00000034, 0x00000034, 0x00000034, 0x00000034, }, + { 0x1c5ba4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5ba8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bac, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bb0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bb4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bb8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bbc, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bc0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bc4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bc8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bcc, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bd0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bd4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bd8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bdc, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5be0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5be4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5be8, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bec, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bf0, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bf4, 0x00000035, 0x00000035, 0x00000035, 0x00000035, }, + { 0x1c5bf8, 0x00000010, 0x00000010, 0x00000010, 0x00000010, }, + { 0x1c5bfc, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a, }, + { 0x1c5c00, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c0c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c10, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c14, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c18, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c1c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c20, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c24, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c28, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c2c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c30, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c34, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c38, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5c3c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5cf0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5cf4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5cf8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c5cfc, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c6200, 0x00000008, 0x00000008, 0x0000000e, 0x0000000e, }, + { 0x1c6204, 0x00000440, 0x00000440, 0x00000440, 0x00000440, }, + { 0x1c6208, 0xd6be4788, 0xd6be4788, 0xd03e4788, 0xd03e4788, }, + { 0x1c620c, 0x012e8160, 0x012e8160, 0x012a8160, 0x012a8160, }, + { 0x1c6210, 0x40806333, 0x40806333, 0x40806333, 0x40806333, }, + { 0x1c6214, 0x00106c10, 0x00106c10, 0x00106c10, 0x00106c10, }, + { 0x1c6218, 0x009c4060, 0x009c4060, 0x009c4060, 0x009c4060, }, + { 0x1c621c, 0x1883800a, 0x1883800a, 0x1883800a, 0x1883800a, }, + { 0x1c6220, 0x018830c6, 0x018830c6, 0x018830c6, 0x018830c6, }, + { 0x1c6224, 0x00000400, 0x00000400, 0x00000400, 0x00000400, }, + { 0x1c6228, 0x000009b5, 0x000009b5, 0x000009b5, 0x000009b5, }, + { 0x1c622c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c6230, 0x00000108, 0x00000210, 0x00000210, 0x00000108, }, + { 0x1c6234, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, }, + { 0x1c6238, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, }, + { 0x1c623c, 0x13c889af, 0x13c889af, 0x13c889af, 0x13c889af, }, + { 0x1c6240, 0x38490a20, 0x38490a20, 0x38490a20, 0x38490a20, }, + { 0x1c6244, 0x00007bb6, 0x00007bb6, 0x00007bb6, 0x00007bb6, }, + { 0x1c6248, 0x0fff3ffc, 0x0fff3ffc, 0x0fff3ffc, 0x0fff3ffc, }, + { 0x1c624c, 0x00000001, 0x00000001, 0x00000001, 0x00000001, }, + { 0x1c6250, 0x0000a000, 0x0000a000, 0x0000a000, 0x0000a000, }, + { 0x1c6254, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c6258, 0x0cc75380, 0x0cc75380, 0x0cc75380, 0x0cc75380, }, + { 0x1c625c, 0x0f0f0f01, 0x0f0f0f01, 0x0f0f0f01, 0x0f0f0f01, }, + { 0x1c6260, 0xdfa91f01, 0xdfa91f01, 0xdfa91f01, 0xdfa91f01, }, + { 0x1c6264, 0x00418a11, 0x00418a11, 0x00418a11, 0x00418a11, }, + { 0x1c6268, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c626c, 0x09249126, 0x09249126, 0x09249126, 0x09249126, }, + { 0x1c6274, 0x0a1a9caa, 0x0a1a9caa, 0x0a1a7caa, 0x0a1a7caa, }, + { 0x1c6278, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, }, + { 0x1c627c, 0x051701ce, 0x051701ce, 0x051701ce, 0x051701ce, }, + { 0x1c6300, 0x18010000, 0x18010000, 0x18010000, 0x18010000, }, + { 0x1c6304, 0x30032602, 0x30032602, 0x2e032402, 0x2e032402, }, + { 0x1c6308, 0x48073e06, 0x48073e06, 0x4a0a3c06, 0x4a0a3c06, }, + { 0x1c630c, 0x560b4c0a, 0x560b4c0a, 0x621a540b, 0x621a540b, }, + { 0x1c6310, 0x641a600f, 0x641a600f, 0x764f6c1b, 0x764f6c1b, }, + { 0x1c6314, 0x7a4f6e1b, 0x7a4f6e1b, 0x845b7a5a, 0x845b7a5a, }, + { 0x1c6318, 0x8c5b7e5a, 0x8c5b7e5a, 0x950f8ccf, 0x950f8ccf, }, + { 0x1c631c, 0x9d0f96cf, 0x9d0f96cf, 0xa5cf9b4f, 0xa5cf9b4f, }, + { 0x1c6320, 0xb51fa69f, 0xb51fa69f, 0xbddfaf1f, 0xbddfaf1f, }, + { 0x1c6324, 0xcb3fbd07, 0xcb3fbcbf, 0xd1ffc93f, 0xd1ffc93f, }, + { 0x1c6328, 0x0000d7bf, 0x0000d7bf, 0x00000000, 0x00000000, }, + { 0x1c632c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c6330, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c6334, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c6338, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c633c, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c6340, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c6344, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c6348, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, }, + { 0x1c634c, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, }, + { 0x1c6350, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, }, + { 0x1c6354, 0x0003ffff, 0x0003ffff, 0x0003ffff, 0x0003ffff, }, + { 0x1c6358, 0x79a8aa1f, 0x79a8aa1f, 0x79a8aa1f, 0x79a8aa1f, }, + { 0x1c6388, 0x08000000, 0x08000000, 0x08000000, 0x08000000, }, + { 0x1c638c, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, }, + { 0x1c6390, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, }, + { 0x1c6394, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, }, + { 0x1c6398, 0x000001ce, 0x000001ce, 0x000001ce, 0x000001ce, }, + { 0x1c639c, 0x00000007, 0x00000007, 0x00000007, 0x00000007, }, + { 0x1c63a0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63a4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63a8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63ac, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63b0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63b4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63b8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63bc, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63c0, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63c4, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63c8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63cc, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, }, + { 0x1c63d0, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, }, + { 0x1c63d4, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, 0x3f3f3f3f, }, + { 0x1c63d8, 0x00000000, 0x00000000, 0x00000000, 0x00000000, }, + { 0x1c63dc, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, 0x1ce739ce, }, + { 0x1c63e0, 0x000000c0, 0x000000c0, 0x000000c0, 0x000000c0, }, + { 0x1c6848, 0x00180a65, 0x00180a65, 0x00180a68, 0x00180a68, }, + { 0x1c6920, 0x0510001c, 0x0510001c, 0x0510001c, 0x0510001c, }, + { 0x1c6960, 0x00009b40, 0x00009b40, 0x00009b40, 0x00009b40, }, + { 0x1c720c, 0x012e8160, 0x012e8160, 0x012a8160, 0x012a8160, }, + { 0x1c726c, 0x09249126, 0x09249126, 0x09249126, 0x09249126, }, + { 0x1c7848, 0x00180a65, 0x00180a65, 0x00180a68, 0x00180a68, }, + { 0x1c7920, 0x0510001c, 0x0510001c, 0x0510001c, 0x0510001c, }, + { 0x1c7960, 0x00009b40, 0x00009b40, 0x00009b40, 0x00009b40, }, + { 0x1c820c, 0x012e8160, 0x012e8160, 0x012a8160, 0x012a8160, }, + { 0x1c826c, 0x09249126, 0x09249126, 0x09249126, 0x09249126, }, +/* { 0x1c8864, 0x0001ce00, 0x0001ce00, 0x0001ce00, 0x0001ce00, }, */ + { 0x1c8864, 0x0001c600, 0x0001c600, 0x0001c600, 0x0001c600, }, + { 0x1c895c, 0x004b6a8e, 0x004b6a8e, 0x004b6a8e, 0x004b6a8e, }, + { 0x1c8968, 0x000003ce, 0x000003ce, 0x000003ce, 0x000003ce, }, + { 0x1c89bc, 0x00181400, 0x00181400, 0x00181400, 0x00181400, }, + { 0x1c9270, 0x00820820, 0x00820820, 0x00820820, 0x00820820, }, + { 0x1c935c, 0x066c420f, 0x066c420f, 0x066c420f, 0x066c420f, }, + { 0x1c9360, 0x0f282207, 0x0f282207, 0x0f282207, 0x0f282207, }, + { 0x1c9364, 0x17601685, 0x17601685, 0x17601685, 0x17601685, }, + { 0x1c9368, 0x1f801104, 0x1f801104, 0x1f801104, 0x1f801104, }, + { 0x1c936c, 0x37a00c03, 0x37a00c03, 0x37a00c03, 0x37a00c03, }, + { 0x1c9370, 0x3fc40883, 0x3fc40883, 0x3fc40883, 0x3fc40883, }, + { 0x1c9374, 0x57c00803, 0x57c00803, 0x57c00803, 0x57c00803, }, + { 0x1c9378, 0x5fd80682, 0x5fd80682, 0x5fd80682, 0x5fd80682, }, + { 0x1c937c, 0x7fe00482, 0x7fe00482, 0x7fe00482, 0x7fe00482, }, + { 0x1c9380, 0x7f3c7bba, 0x7f3c7bba, 0x7f3c7bba, 0x7f3c7bba, }, + { 0x1c9384, 0xf3307ff0, 0xf3307ff0, 0xf3307ff0, 0xf3307ff0, } +}; + +int ar9170_init_phy(struct ar9170 *ar, enum ieee80211_band band) +{ + int i, err; + u32 val; + bool is_2ghz = band == IEEE80211_BAND_2GHZ; + bool is_40mhz = conf_is_ht40(&ar->hw->conf); + + ar9170_regwrite_begin(ar); + + for (i = 0; i < ARRAY_SIZE(ar5416_phy_init); i++) { + if (is_40mhz) { + if (is_2ghz) + val = ar5416_phy_init[i]._2ghz_40; + else + val = ar5416_phy_init[i]._5ghz_40; + } else { + if (is_2ghz) + val = ar5416_phy_init[i]._2ghz_20; + else + val = ar5416_phy_init[i]._5ghz_20; + } + + ar9170_regwrite(ar5416_phy_init[i].reg, val); + } + + ar9170_regwrite_finish(); + err = ar9170_regwrite_result(); + if (err) + return err; + + /* XXX: use EEPROM data here! */ + + err = ar9170_init_power_cal(ar); + if (err) + return err; + + /* XXX: remove magic! */ + if (is_2ghz) + err = ar9170_write_reg(ar, 0x1d4014, 0x5163); + else + err = ar9170_write_reg(ar, 0x1d4014, 0x5143); + + return err; +} + +struct ar9170_rf_init { + u32 reg, _5ghz, _2ghz; +}; + +static struct ar9170_rf_init ar9170_rf_init[] = { + /* bank 0 */ + { 0x1c58b0, 0x1e5795e5, 0x1e5795e5}, + { 0x1c58e0, 0x02008020, 0x02008020}, + /* bank 1 */ + { 0x1c58b0, 0x02108421, 0x02108421}, + { 0x1c58ec, 0x00000008, 0x00000008}, + /* bank 2 */ + { 0x1c58b0, 0x0e73ff17, 0x0e73ff17}, + { 0x1c58e0, 0x00000420, 0x00000420}, + /* bank 3 */ + { 0x1c58f0, 0x01400018, 0x01c00018}, + /* bank 4 */ + { 0x1c58b0, 0x000001a1, 0x000001a1}, + { 0x1c58e8, 0x00000001, 0x00000001}, + /* bank 5 */ + { 0x1c58b0, 0x00000013, 0x00000013}, + { 0x1c58e4, 0x00000002, 0x00000002}, + /* bank 6 */ + { 0x1c58b0, 0x00000000, 0x00000000}, + { 0x1c58b0, 0x00000000, 0x00000000}, + { 0x1c58b0, 0x00000000, 0x00000000}, + { 0x1c58b0, 0x00000000, 0x00000000}, + { 0x1c58b0, 0x00000000, 0x00000000}, + { 0x1c58b0, 0x00004000, 0x00004000}, + { 0x1c58b0, 0x00006c00, 0x00006c00}, + { 0x1c58b0, 0x00002c00, 0x00002c00}, + { 0x1c58b0, 0x00004800, 0x00004800}, + { 0x1c58b0, 0x00004000, 0x00004000}, + { 0x1c58b0, 0x00006000, 0x00006000}, + { 0x1c58b0, 0x00001000, 0x00001000}, + { 0x1c58b0, 0x00004000, 0x00004000}, + { 0x1c58b0, 0x00007c00, 0x00007c00}, + { 0x1c58b0, 0x00007c00, 0x00007c00}, + { 0x1c58b0, 0x00007c00, 0x00007c00}, + { 0x1c58b0, 0x00007c00, 0x00007c00}, + { 0x1c58b0, 0x00007c00, 0x00007c00}, + { 0x1c58b0, 0x00087c00, 0x00087c00}, + { 0x1c58b0, 0x00007c00, 0x00007c00}, + { 0x1c58b0, 0x00005400, 0x00005400}, + { 0x1c58b0, 0x00000c00, 0x00000c00}, + { 0x1c58b0, 0x00001800, 0x00001800}, + { 0x1c58b0, 0x00007c00, 0x00007c00}, + { 0x1c58b0, 0x00006c00, 0x00006c00}, + { 0x1c58b0, 0x00006c00, 0x00006c00}, + { 0x1c58b0, 0x00007c00, 0x00007c00}, + { 0x1c58b0, 0x00002c00, 0x00002c00}, + { 0x1c58b0, 0x00003c00, 0x00003c00}, + { 0x1c58b0, 0x00003800, 0x00003800}, + { 0x1c58b0, 0x00001c00, 0x00001c00}, + { 0x1c58b0, 0x00000800, 0x00000800}, + { 0x1c58b0, 0x00000408, 0x00000408}, + { 0x1c58b0, 0x00004c15, 0x00004c15}, + { 0x1c58b0, 0x00004188, 0x00004188}, + { 0x1c58b0, 0x0000201e, 0x0000201e}, + { 0x1c58b0, 0x00010408, 0x00010408}, + { 0x1c58b0, 0x00000801, 0x00000801}, + { 0x1c58b0, 0x00000c08, 0x00000c08}, + { 0x1c58b0, 0x0000181e, 0x0000181e}, + { 0x1c58b0, 0x00001016, 0x00001016}, + { 0x1c58b0, 0x00002800, 0x00002800}, + { 0x1c58b0, 0x00004010, 0x00004010}, + { 0x1c58b0, 0x0000081c, 0x0000081c}, + { 0x1c58b0, 0x00000115, 0x00000115}, + { 0x1c58b0, 0x00000015, 0x00000015}, + { 0x1c58b0, 0x00000066, 0x00000066}, + { 0x1c58b0, 0x0000001c, 0x0000001c}, + { 0x1c58b0, 0x00000000, 0x00000000}, + { 0x1c58b0, 0x00000004, 0x00000004}, + { 0x1c58b0, 0x00000015, 0x00000015}, + { 0x1c58b0, 0x0000001f, 0x0000001f}, + { 0x1c58e0, 0x00000000, 0x00000400}, + /* bank 7 */ + { 0x1c58b0, 0x000000a0, 0x000000a0}, + { 0x1c58b0, 0x00000000, 0x00000000}, + { 0x1c58b0, 0x00000040, 0x00000040}, + { 0x1c58f0, 0x0000001c, 0x0000001c}, +}; + +static int ar9170_init_rf_banks_0_7(struct ar9170 *ar, bool band5ghz) +{ + int err, i; + + ar9170_regwrite_begin(ar); + + for (i = 0; i < ARRAY_SIZE(ar9170_rf_init); i++) + ar9170_regwrite(ar9170_rf_init[i].reg, + band5ghz ? ar9170_rf_init[i]._5ghz + : ar9170_rf_init[i]._2ghz); + + ar9170_regwrite_finish(); + err = ar9170_regwrite_result(); + if (err) + printk(KERN_ERR "%s: rf init failed\n", + wiphy_name(ar->hw->wiphy)); + return err; +} + +static int ar9170_init_rf_bank4_pwr(struct ar9170 *ar, bool band5ghz, + u32 freq, enum ar9170_bw bw) +{ + int err; + u32 d0, d1, td0, td1, fd0, fd1; + u8 chansel; + u8 refsel0 = 1, refsel1 = 0; + u8 lf_synth = 0; + + switch (bw) { + case AR9170_BW_40_ABOVE: + freq += 10; + break; + case AR9170_BW_40_BELOW: + freq -= 10; + break; + case AR9170_BW_20: + break; + case __AR9170_NUM_BW: + BUG(); + } + + if (band5ghz) { + if (freq % 10) { + chansel = (freq - 4800) / 5; + } else { + chansel = ((freq - 4800) / 10) * 2; + refsel0 = 0; + refsel1 = 1; + } + chansel = byte_rev_table[chansel]; + } else { + if (freq == 2484) { + chansel = 10 + (freq - 2274) / 5; + lf_synth = 1; + } else + chansel = 16 + (freq - 2272) / 5; + chansel *= 4; + chansel = byte_rev_table[chansel]; + } + + d1 = chansel; + d0 = 0x21 | + refsel0 << 3 | + refsel1 << 2 | + lf_synth << 1; + td0 = d0 & 0x1f; + td1 = d1 & 0x1f; + fd0 = td1 << 5 | td0; + + td0 = (d0 >> 5) & 0x7; + td1 = (d1 >> 5) & 0x7; + fd1 = td1 << 5 | td0; + + ar9170_regwrite_begin(ar); + + ar9170_regwrite(0x1c58b0, fd0); + ar9170_regwrite(0x1c58e8, fd1); + + ar9170_regwrite_finish(); + err = ar9170_regwrite_result(); + if (err) + return err; + + msleep(10); + + return 0; +} + +struct ar9170_phy_freq_params { + u8 coeff_exp; + u16 coeff_man; + u8 coeff_exp_shgi; + u16 coeff_man_shgi; +}; + +struct ar9170_phy_freq_entry { + u16 freq; + struct ar9170_phy_freq_params params[__AR9170_NUM_BW]; +}; + +/* NB: must be in sync with channel tables in main! */ +static const struct ar9170_phy_freq_entry ar9170_phy_freq_params[] = { +/* + * freq, + * 20MHz, + * 40MHz (below), + * 40Mhz (above), + */ + { 2412, { + { 3, 21737, 3, 19563, }, + { 3, 21827, 3, 19644, }, + { 3, 21647, 3, 19482, }, + } }, + { 2417, { + { 3, 21692, 3, 19523, }, + { 3, 21782, 3, 19604, }, + { 3, 21602, 3, 19442, }, + } }, + { 2422, { + { 3, 21647, 3, 19482, }, + { 3, 21737, 3, 19563, }, + { 3, 21558, 3, 19402, }, + } }, + { 2427, { + { 3, 21602, 3, 19442, }, + { 3, 21692, 3, 19523, }, + { 3, 21514, 3, 19362, }, + } }, + { 2432, { + { 3, 21558, 3, 19402, }, + { 3, 21647, 3, 19482, }, + { 3, 21470, 3, 19323, }, + } }, + { 2437, { + { 3, 21514, 3, 19362, }, + { 3, 21602, 3, 19442, }, + { 3, 21426, 3, 19283, }, + } }, + { 2442, { + { 3, 21470, 3, 19323, }, + { 3, 21558, 3, 19402, }, + { 3, 21382, 3, 19244, }, + } }, + { 2447, { + { 3, 21426, 3, 19283, }, + { 3, 21514, 3, 19362, }, + { 3, 21339, 3, 19205, }, + } }, + { 2452, { + { 3, 21382, 3, 19244, }, + { 3, 21470, 3, 19323, }, + { 3, 21295, 3, 19166, }, + } }, + { 2457, { + { 3, 21339, 3, 19205, }, + { 3, 21426, 3, 19283, }, + { 3, 21252, 3, 19127, }, + } }, + { 2462, { + { 3, 21295, 3, 19166, }, + { 3, 21382, 3, 19244, }, + { 3, 21209, 3, 19088, }, + } }, + { 2467, { + { 3, 21252, 3, 19127, }, + { 3, 21339, 3, 19205, }, + { 3, 21166, 3, 19050, }, + } }, + { 2472, { + { 3, 21209, 3, 19088, }, + { 3, 21295, 3, 19166, }, + { 3, 21124, 3, 19011, }, + } }, + { 2484, { + { 3, 21107, 3, 18996, }, + { 3, 21192, 3, 19073, }, + { 3, 21022, 3, 18920, }, + } }, + { 4920, { + { 4, 21313, 4, 19181, }, + { 4, 21356, 4, 19220, }, + { 4, 21269, 4, 19142, }, + } }, + { 4940, { + { 4, 21226, 4, 19104, }, + { 4, 21269, 4, 19142, }, + { 4, 21183, 4, 19065, }, + } }, + { 4960, { + { 4, 21141, 4, 19027, }, + { 4, 21183, 4, 19065, }, + { 4, 21098, 4, 18988, }, + } }, + { 4980, { + { 4, 21056, 4, 18950, }, + { 4, 21098, 4, 18988, }, + { 4, 21014, 4, 18912, }, + } }, + { 5040, { + { 4, 20805, 4, 18725, }, + { 4, 20846, 4, 18762, }, + { 4, 20764, 4, 18687, }, + } }, + { 5060, { + { 4, 20723, 4, 18651, }, + { 4, 20764, 4, 18687, }, + { 4, 20682, 4, 18614, }, + } }, + { 5080, { + { 4, 20641, 4, 18577, }, + { 4, 20682, 4, 18614, }, + { 4, 20601, 4, 18541, }, + } }, + { 5180, { + { 4, 20243, 4, 18219, }, + { 4, 20282, 4, 18254, }, + { 4, 20204, 4, 18183, }, + } }, + { 5200, { + { 4, 20165, 4, 18148, }, + { 4, 20204, 4, 18183, }, + { 4, 20126, 4, 18114, }, + } }, + { 5220, { + { 4, 20088, 4, 18079, }, + { 4, 20126, 4, 18114, }, + { 4, 20049, 4, 18044, }, + } }, + { 5240, { + { 4, 20011, 4, 18010, }, + { 4, 20049, 4, 18044, }, + { 4, 19973, 4, 17976, }, + } }, + { 5260, { + { 4, 19935, 4, 17941, }, + { 4, 19973, 4, 17976, }, + { 4, 19897, 4, 17907, }, + } }, + { 5280, { + { 4, 19859, 4, 17873, }, + { 4, 19897, 4, 17907, }, + { 4, 19822, 4, 17840, }, + } }, + { 5300, { + { 4, 19784, 4, 17806, }, + { 4, 19822, 4, 17840, }, + { 4, 19747, 4, 17772, }, + } }, + { 5320, { + { 4, 19710, 4, 17739, }, + { 4, 19747, 4, 17772, }, + { 4, 19673, 4, 17706, }, + } }, + { 5500, { + { 4, 19065, 4, 17159, }, + { 4, 19100, 4, 17190, }, + { 4, 19030, 4, 17127, }, + } }, + { 5520, { + { 4, 18996, 4, 17096, }, + { 4, 19030, 4, 17127, }, + { 4, 18962, 4, 17065, }, + } }, + { 5540, { + { 4, 18927, 4, 17035, }, + { 4, 18962, 4, 17065, }, + { 4, 18893, 4, 17004, }, + } }, + { 5560, { + { 4, 18859, 4, 16973, }, + { 4, 18893, 4, 17004, }, + { 4, 18825, 4, 16943, }, + } }, + { 5580, { + { 4, 18792, 4, 16913, }, + { 4, 18825, 4, 16943, }, + { 4, 18758, 4, 16882, }, + } }, + { 5600, { + { 4, 18725, 4, 16852, }, + { 4, 18758, 4, 16882, }, + { 4, 18691, 4, 16822, }, + } }, + { 5620, { + { 4, 18658, 4, 16792, }, + { 4, 18691, 4, 16822, }, + { 4, 18625, 4, 16762, }, + } }, + { 5640, { + { 4, 18592, 4, 16733, }, + { 4, 18625, 4, 16762, }, + { 4, 18559, 4, 16703, }, + } }, + { 5660, { + { 4, 18526, 4, 16673, }, + { 4, 18559, 4, 16703, }, + { 4, 18493, 4, 16644, }, + } }, + { 5680, { + { 4, 18461, 4, 16615, }, + { 4, 18493, 4, 16644, }, + { 4, 18428, 4, 16586, }, + } }, + { 5700, { + { 4, 18396, 4, 16556, }, + { 4, 18428, 4, 16586, }, + { 4, 18364, 4, 16527, }, + } }, + { 5745, { + { 4, 18252, 4, 16427, }, + { 4, 18284, 4, 16455, }, + { 4, 18220, 4, 16398, }, + } }, + { 5765, { + { 4, 18189, 5, 32740, }, + { 4, 18220, 4, 16398, }, + { 4, 18157, 5, 32683, }, + } }, + { 5785, { + { 4, 18126, 5, 32626, }, + { 4, 18157, 5, 32683, }, + { 4, 18094, 5, 32570, }, + } }, + { 5805, { + { 4, 18063, 5, 32514, }, + { 4, 18094, 5, 32570, }, + { 4, 18032, 5, 32458, }, + } }, + { 5825, { + { 4, 18001, 5, 32402, }, + { 4, 18032, 5, 32458, }, + { 4, 17970, 5, 32347, }, + } }, + { 5170, { + { 4, 20282, 4, 18254, }, + { 4, 20321, 4, 18289, }, + { 4, 20243, 4, 18219, }, + } }, + { 5190, { + { 4, 20204, 4, 18183, }, + { 4, 20243, 4, 18219, }, + { 4, 20165, 4, 18148, }, + } }, + { 5210, { + { 4, 20126, 4, 18114, }, + { 4, 20165, 4, 18148, }, + { 4, 20088, 4, 18079, }, + } }, + { 5230, { + { 4, 20049, 4, 18044, }, + { 4, 20088, 4, 18079, }, + { 4, 20011, 4, 18010, }, + } }, +}; + +static const struct ar9170_phy_freq_params * +ar9170_get_hw_dyn_params(struct ieee80211_channel *channel, + enum ar9170_bw bw) +{ + unsigned int chanidx = 0; + u16 freq = 2412; + + if (channel) { + chanidx = channel->hw_value; + freq = channel->center_freq; + } + + BUG_ON(chanidx >= ARRAY_SIZE(ar9170_phy_freq_params)); + + BUILD_BUG_ON(__AR9170_NUM_BW != 3); + + WARN_ON(ar9170_phy_freq_params[chanidx].freq != freq); + + return &ar9170_phy_freq_params[chanidx].params[bw]; +} + + +int ar9170_init_rf(struct ar9170 *ar) +{ + const struct ar9170_phy_freq_params *freqpar; + __le32 cmd[7]; + int err; + + err = ar9170_init_rf_banks_0_7(ar, false); + if (err) + return err; + + err = ar9170_init_rf_bank4_pwr(ar, false, 2412, AR9170_BW_20); + if (err) + return err; + + freqpar = ar9170_get_hw_dyn_params(NULL, AR9170_BW_20); + + cmd[0] = cpu_to_le32(2412 * 1000); + cmd[1] = cpu_to_le32(0); + cmd[2] = cpu_to_le32(1); + cmd[3] = cpu_to_le32(freqpar->coeff_exp); + cmd[4] = cpu_to_le32(freqpar->coeff_man); + cmd[5] = cpu_to_le32(freqpar->coeff_exp_shgi); + cmd[6] = cpu_to_le32(freqpar->coeff_man_shgi); + + /* RF_INIT echoes the command back to us */ + err = ar->exec_cmd(ar, AR9170_CMD_RF_INIT, + sizeof(cmd), (u8 *)cmd, + sizeof(cmd), (u8 *)cmd); + if (err) + return err; + + msleep(1000); + + return ar9170_echo_test(ar, 0xaabbccdd); +} + +static int ar9170_find_freq_idx(int nfreqs, u8 *freqs, u8 f) +{ + int idx = nfreqs - 2; + + while (idx >= 0) { + if (f >= freqs[idx]) + return idx; + idx--; + } + + return 0; +} + +static s32 ar9170_interpolate_s32(s32 x, s32 x1, s32 y1, s32 x2, s32 y2) +{ + /* nothing to interpolate, it's horizontal */ + if (y2 == y1) + return y1; + + /* check if we hit one of the edges */ + if (x == x1) + return y1; + if (x == x2) + return y2; + + /* x1 == x2 is bad, hopefully == x */ + if (x2 == x1) + return y1; + + return y1 + (((y2 - y1) * (x - x1)) / (x2 - x1)); +} + +static u8 ar9170_interpolate_u8(u8 x, u8 x1, u8 y1, u8 x2, u8 y2) +{ +#define SHIFT 8 + s32 y; + + y = ar9170_interpolate_s32(x << SHIFT, + x1 << SHIFT, y1 << SHIFT, + x2 << SHIFT, y2 << SHIFT); + + /* + * XXX: unwrap this expression + * Isn't it just DIV_ROUND_UP(y, 1<<SHIFT)? + * Can we rely on the compiler to optimise away the div? + */ + return (y >> SHIFT) + ((y & (1<<(SHIFT-1))) >> (SHIFT - 1)); +#undef SHIFT +} + +static int ar9170_set_power_cal(struct ar9170 *ar, u32 freq, enum ar9170_bw bw) +{ + struct ar9170_calibration_target_power_legacy *ctpl; + struct ar9170_calibration_target_power_ht *ctph; + u8 *ctpres; + int ntargets; + int idx, i, n; + u8 ackpower, ackchains, f; + u8 pwr_freqs[AR5416_MAX_NUM_TGT_PWRS]; + + if (freq < 3000) + f = freq - 2300; + else + f = (freq - 4800)/5; + + /* + * cycle through the various modes + * + * legacy modes first: 5G, 2G CCK, 2G OFDM + */ + for (i = 0; i < 3; i++) { + switch (i) { + case 0: /* 5 GHz legacy */ + ctpl = &ar->eeprom.cal_tgt_pwr_5G[0]; + ntargets = AR5416_NUM_5G_TARGET_PWRS; + ctpres = ar->power_5G_leg; + break; + case 1: /* 2.4 GHz CCK */ + ctpl = &ar->eeprom.cal_tgt_pwr_2G_cck[0]; + ntargets = AR5416_NUM_2G_CCK_TARGET_PWRS; + ctpres = ar->power_2G_cck; + break; + case 2: /* 2.4 GHz OFDM */ + ctpl = &ar->eeprom.cal_tgt_pwr_2G_ofdm[0]; + ntargets = AR5416_NUM_2G_OFDM_TARGET_PWRS; + ctpres = ar->power_2G_ofdm; + break; + default: + BUG(); + } + + for (n = 0; n < ntargets; n++) { + if (ctpl[n].freq == 0xff) + break; + pwr_freqs[n] = ctpl[n].freq; + } + ntargets = n; + idx = ar9170_find_freq_idx(ntargets, pwr_freqs, f); + for (n = 0; n < 4; n++) + ctpres[n] = ar9170_interpolate_u8( + f, + ctpl[idx + 0].freq, + ctpl[idx + 0].power[n], + ctpl[idx + 1].freq, + ctpl[idx + 1].power[n]); + } + + /* + * HT modes now: 5G HT20, 5G HT40, 2G CCK, 2G OFDM, 2G HT20, 2G HT40 + */ + for (i = 0; i < 4; i++) { + switch (i) { + case 0: /* 5 GHz HT 20 */ + ctph = &ar->eeprom.cal_tgt_pwr_5G_ht20[0]; + ntargets = AR5416_NUM_5G_TARGET_PWRS; + ctpres = ar->power_5G_ht20; + break; + case 1: /* 5 GHz HT 40 */ + ctph = &ar->eeprom.cal_tgt_pwr_5G_ht40[0]; + ntargets = AR5416_NUM_5G_TARGET_PWRS; + ctpres = ar->power_5G_ht40; + break; + case 2: /* 2.4 GHz HT 20 */ + ctph = &ar->eeprom.cal_tgt_pwr_2G_ht20[0]; + ntargets = AR5416_NUM_2G_OFDM_TARGET_PWRS; + ctpres = ar->power_2G_ht20; + break; + case 3: /* 2.4 GHz HT 40 */ + ctph = &ar->eeprom.cal_tgt_pwr_2G_ht40[0]; + ntargets = AR5416_NUM_2G_OFDM_TARGET_PWRS; + ctpres = ar->power_2G_ht40; + break; + default: + BUG(); + } + + for (n = 0; n < ntargets; n++) { + if (ctph[n].freq == 0xff) + break; + pwr_freqs[n] = ctph[n].freq; + } + ntargets = n; + idx = ar9170_find_freq_idx(ntargets, pwr_freqs, f); + for (n = 0; n < 8; n++) + ctpres[n] = ar9170_interpolate_u8( + f, + ctph[idx + 0].freq, + ctph[idx + 0].power[n], + ctph[idx + 1].freq, + ctph[idx + 1].power[n]); + } + + /* set ACK/CTS TX power */ + ar9170_regwrite_begin(ar); + + if (ar->eeprom.tx_mask != 1) + ackchains = AR9170_TX_PHY_TXCHAIN_2; + else + ackchains = AR9170_TX_PHY_TXCHAIN_1; + + if (freq < 3000) + ackpower = ar->power_2G_ofdm[0] & 0x3f; + else + ackpower = ar->power_5G_leg[0] & 0x3f; + + ar9170_regwrite(0x1c3694, ackpower << 20 | ackchains << 26); + ar9170_regwrite(0x1c3bb4, ackpower << 5 | ackchains << 11 | + ackpower << 21 | ackchains << 27); + + ar9170_regwrite_finish(); + return ar9170_regwrite_result(); +} + +static int ar9170_calc_noise_dbm(u32 raw_noise) +{ + if (raw_noise & 0x100) + return ~((raw_noise & 0x0ff) >> 1); + else + return (raw_noise & 0xff) >> 1; +} + +int ar9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel, + enum ar9170_rf_init_mode rfi, enum ar9170_bw bw) +{ + const struct ar9170_phy_freq_params *freqpar; + u32 cmd, tmp, offs; + __le32 vals[8]; + int i, err; + bool bandswitch; + + /* clear BB heavy clip enable */ + err = ar9170_write_reg(ar, 0x1c59e0, 0x200); + if (err) + return err; + + /* may be NULL at first setup */ + if (ar->channel) + bandswitch = ar->channel->band != channel->band; + else + bandswitch = true; + + /* HW workaround */ + if (!ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] && + channel->center_freq <= 2417) + bandswitch = true; + + err = ar->exec_cmd(ar, AR9170_CMD_FREQ_START, 0, NULL, 0, NULL); + if (err) + return err; + + if (rfi != AR9170_RFI_NONE || bandswitch) { + u32 val = 0x400; + + if (rfi == AR9170_RFI_COLD) + val = 0x800; + + /* warm/cold reset BB/ADDA */ + err = ar9170_write_reg(ar, 0x1d4004, val); + if (err) + return err; + + err = ar9170_write_reg(ar, 0x1d4004, 0x0); + if (err) + return err; + + err = ar9170_init_phy(ar, channel->band); + if (err) + return err; + + err = ar9170_init_rf_banks_0_7(ar, + channel->band == IEEE80211_BAND_5GHZ); + if (err) + return err; + + cmd = AR9170_CMD_RF_INIT; + } else { + cmd = AR9170_CMD_FREQUENCY; + } + + err = ar9170_init_rf_bank4_pwr(ar, + channel->band == IEEE80211_BAND_5GHZ, + channel->center_freq, bw); + if (err) + return err; + + switch (bw) { + case AR9170_BW_20: + tmp = 0x240; + offs = 0; + break; + case AR9170_BW_40_BELOW: + tmp = 0x2c4; + offs = 3; + break; + case AR9170_BW_40_ABOVE: + tmp = 0x2d4; + offs = 1; + break; + default: + BUG(); + return -ENOSYS; + } + + if (ar->eeprom.tx_mask != 1) + tmp |= 0x100; + + err = ar9170_write_reg(ar, 0x1c5804, tmp); + if (err) + return err; + + err = ar9170_set_power_cal(ar, channel->center_freq, bw); + if (err) + return err; + + freqpar = ar9170_get_hw_dyn_params(channel, bw); + + vals[0] = cpu_to_le32(channel->center_freq * 1000); + vals[1] = cpu_to_le32(conf_is_ht40(&ar->hw->conf)); + vals[2] = cpu_to_le32(offs << 2 | 1); + vals[3] = cpu_to_le32(freqpar->coeff_exp); + vals[4] = cpu_to_le32(freqpar->coeff_man); + vals[5] = cpu_to_le32(freqpar->coeff_exp_shgi); + vals[6] = cpu_to_le32(freqpar->coeff_man_shgi); + vals[7] = cpu_to_le32(1000); + + err = ar->exec_cmd(ar, cmd, sizeof(vals), (u8 *)vals, + sizeof(vals), (u8 *)vals); + if (err) + return err; + + for (i = 0; i < 2; i++) { + ar->noise[i] = ar9170_calc_noise_dbm( + (le32_to_cpu(vals[2 + i]) >> 19) & 0x1ff); + + ar->noise[i + 2] = ar9170_calc_noise_dbm( + (le32_to_cpu(vals[5 + i]) >> 23) & 0x1ff); + } + + ar->channel = channel; + return 0; +} diff --git a/drivers/net/wireless/ath/ar9170/usb.c b/drivers/net/wireless/ath/ar9170/usb.c new file mode 100644 index 00000000000..754b1f8d8da --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/usb.c @@ -0,0 +1,929 @@ +/* + * Atheros AR9170 driver + * + * USB - frontend + * + * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> + * Copyright 2009, Christian Lamparter <chunkeey@web.de> + * + * 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 <linux/module.h> +#include <linux/usb.h> +#include <linux/firmware.h> +#include <linux/etherdevice.h> +#include <net/mac80211.h> +#include "ar9170.h" +#include "cmd.h" +#include "hw.h" +#include "usb.h" + +MODULE_AUTHOR("Johannes Berg <johannes@sipsolutions.net>"); +MODULE_AUTHOR("Christian Lamparter <chunkeey@web.de>"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Atheros AR9170 802.11n USB wireless"); +MODULE_FIRMWARE("ar9170.fw"); +MODULE_FIRMWARE("ar9170-1.fw"); +MODULE_FIRMWARE("ar9170-2.fw"); + +enum ar9170_requirements { + AR9170_REQ_FW1_ONLY = 1, +}; + +static struct usb_device_id ar9170_usb_ids[] = { + /* Atheros 9170 */ + { USB_DEVICE(0x0cf3, 0x9170) }, + /* Atheros TG121N */ + { USB_DEVICE(0x0cf3, 0x1001) }, + /* Cace Airpcap NX */ + { USB_DEVICE(0xcace, 0x0300) }, + /* D-Link DWA 160A */ + { USB_DEVICE(0x07d1, 0x3c10) }, + /* Netgear WNDA3100 */ + { USB_DEVICE(0x0846, 0x9010) }, + /* Netgear WN111 v2 */ + { USB_DEVICE(0x0846, 0x9001) }, + /* Zydas ZD1221 */ + { USB_DEVICE(0x0ace, 0x1221) }, + /* ZyXEL NWD271N */ + { USB_DEVICE(0x0586, 0x3417) }, + /* Z-Com UB81 BG */ + { USB_DEVICE(0x0cde, 0x0023) }, + /* Z-Com UB82 ABG */ + { USB_DEVICE(0x0cde, 0x0026) }, + /* Arcadyan WN7512 */ + { USB_DEVICE(0x083a, 0xf522) }, + /* Planex GWUS300 */ + { USB_DEVICE(0x2019, 0x5304) }, + /* IO-Data WNGDNUS2 */ + { USB_DEVICE(0x04bb, 0x093f) }, + /* AVM FRITZ!WLAN USB Stick N */ + { USB_DEVICE(0x057C, 0x8401) }, + /* AVM FRITZ!WLAN USB Stick N 2.4 */ + { USB_DEVICE(0x057C, 0x8402), .driver_info = AR9170_REQ_FW1_ONLY }, + + /* terminate */ + {} +}; +MODULE_DEVICE_TABLE(usb, ar9170_usb_ids); + +static void ar9170_usb_submit_urb(struct ar9170_usb *aru) +{ + struct urb *urb; + unsigned long flags; + int err; + + if (unlikely(!IS_STARTED(&aru->common))) + return ; + + spin_lock_irqsave(&aru->tx_urb_lock, flags); + if (aru->tx_submitted_urbs >= AR9170_NUM_TX_URBS) { + spin_unlock_irqrestore(&aru->tx_urb_lock, flags); + return ; + } + aru->tx_submitted_urbs++; + + urb = usb_get_from_anchor(&aru->tx_pending); + if (!urb) { + aru->tx_submitted_urbs--; + spin_unlock_irqrestore(&aru->tx_urb_lock, flags); + + return ; + } + spin_unlock_irqrestore(&aru->tx_urb_lock, flags); + + aru->tx_pending_urbs--; + usb_anchor_urb(urb, &aru->tx_submitted); + + err = usb_submit_urb(urb, GFP_ATOMIC); + if (unlikely(err)) { + if (ar9170_nag_limiter(&aru->common)) + dev_err(&aru->udev->dev, "submit_urb failed (%d).\n", + err); + + usb_unanchor_urb(urb); + aru->tx_submitted_urbs--; + ar9170_tx_callback(&aru->common, urb->context); + } + + usb_free_urb(urb); +} + +static void ar9170_usb_tx_urb_complete_frame(struct urb *urb) +{ + struct sk_buff *skb = urb->context; + struct ar9170_usb *aru = (struct ar9170_usb *) + usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); + + if (unlikely(!aru)) { + dev_kfree_skb_irq(skb); + return ; + } + + aru->tx_submitted_urbs--; + + ar9170_tx_callback(&aru->common, skb); + + ar9170_usb_submit_urb(aru); +} + +static void ar9170_usb_tx_urb_complete(struct urb *urb) +{ +} + +static void ar9170_usb_irq_completed(struct urb *urb) +{ + struct ar9170_usb *aru = urb->context; + + switch (urb->status) { + /* everything is fine */ + case 0: + break; + + /* disconnect */ + case -ENOENT: + case -ECONNRESET: + case -ENODEV: + case -ESHUTDOWN: + goto free; + + default: + goto resubmit; + } + + ar9170_handle_command_response(&aru->common, urb->transfer_buffer, + urb->actual_length); + +resubmit: + usb_anchor_urb(urb, &aru->rx_submitted); + if (usb_submit_urb(urb, GFP_ATOMIC)) { + usb_unanchor_urb(urb); + goto free; + } + + return; + +free: + usb_buffer_free(aru->udev, 64, urb->transfer_buffer, urb->transfer_dma); +} + +static void ar9170_usb_rx_completed(struct urb *urb) +{ + struct sk_buff *skb = urb->context; + struct ar9170_usb *aru = (struct ar9170_usb *) + usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0)); + int err; + + if (!aru) + goto free; + + switch (urb->status) { + /* everything is fine */ + case 0: + break; + + /* disconnect */ + case -ENOENT: + case -ECONNRESET: + case -ENODEV: + case -ESHUTDOWN: + goto free; + + default: + goto resubmit; + } + + skb_put(skb, urb->actual_length); + ar9170_rx(&aru->common, skb); + +resubmit: + skb_reset_tail_pointer(skb); + skb_trim(skb, 0); + + usb_anchor_urb(urb, &aru->rx_submitted); + err = usb_submit_urb(urb, GFP_ATOMIC); + if (unlikely(err)) { + usb_unanchor_urb(urb); + goto free; + } + + return ; + +free: + dev_kfree_skb_irq(skb); +} + +static int ar9170_usb_prep_rx_urb(struct ar9170_usb *aru, + struct urb *urb, gfp_t gfp) +{ + struct sk_buff *skb; + + skb = __dev_alloc_skb(AR9170_MAX_RX_BUFFER_SIZE + 32, gfp); + if (!skb) + return -ENOMEM; + + /* reserve some space for mac80211's radiotap */ + skb_reserve(skb, 32); + + usb_fill_bulk_urb(urb, aru->udev, + usb_rcvbulkpipe(aru->udev, AR9170_EP_RX), + skb->data, min(skb_tailroom(skb), + AR9170_MAX_RX_BUFFER_SIZE), + ar9170_usb_rx_completed, skb); + + return 0; +} + +static int ar9170_usb_alloc_rx_irq_urb(struct ar9170_usb *aru) +{ + struct urb *urb = NULL; + void *ibuf; + int err = -ENOMEM; + + /* initialize interrupt endpoint */ + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) + goto out; + + ibuf = usb_buffer_alloc(aru->udev, 64, GFP_KERNEL, &urb->transfer_dma); + if (!ibuf) + goto out; + + usb_fill_int_urb(urb, aru->udev, + usb_rcvintpipe(aru->udev, AR9170_EP_IRQ), ibuf, + 64, ar9170_usb_irq_completed, aru, 1); + urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + + usb_anchor_urb(urb, &aru->rx_submitted); + err = usb_submit_urb(urb, GFP_KERNEL); + if (err) { + usb_unanchor_urb(urb); + usb_buffer_free(aru->udev, 64, urb->transfer_buffer, + urb->transfer_dma); + } + +out: + usb_free_urb(urb); + return err; +} + +static int ar9170_usb_alloc_rx_bulk_urbs(struct ar9170_usb *aru) +{ + struct urb *urb; + int i; + int err = -EINVAL; + + for (i = 0; i < AR9170_NUM_RX_URBS; i++) { + err = -ENOMEM; + urb = usb_alloc_urb(0, GFP_KERNEL); + if (!urb) + goto err_out; + + err = ar9170_usb_prep_rx_urb(aru, urb, GFP_KERNEL); + if (err) { + usb_free_urb(urb); + goto err_out; + } + + usb_anchor_urb(urb, &aru->rx_submitted); + err = usb_submit_urb(urb, GFP_KERNEL); + if (err) { + usb_unanchor_urb(urb); + dev_kfree_skb_any((void *) urb->transfer_buffer); + usb_free_urb(urb); + goto err_out; + } + usb_free_urb(urb); + } + + /* the device now waiting for a firmware. */ + aru->common.state = AR9170_IDLE; + return 0; + +err_out: + + usb_kill_anchored_urbs(&aru->rx_submitted); + return err; +} + +static int ar9170_usb_flush(struct ar9170 *ar) +{ + struct ar9170_usb *aru = (void *) ar; + struct urb *urb; + int ret, err = 0; + + if (IS_STARTED(ar)) + aru->common.state = AR9170_IDLE; + + usb_wait_anchor_empty_timeout(&aru->tx_pending, + msecs_to_jiffies(800)); + while ((urb = usb_get_from_anchor(&aru->tx_pending))) { + ar9170_tx_callback(&aru->common, (void *) urb->context); + usb_free_urb(urb); + } + + /* lets wait a while until the tx - queues are dried out */ + ret = usb_wait_anchor_empty_timeout(&aru->tx_submitted, + msecs_to_jiffies(100)); + if (ret == 0) + err = -ETIMEDOUT; + + usb_kill_anchored_urbs(&aru->tx_submitted); + + if (IS_ACCEPTING_CMD(ar)) + aru->common.state = AR9170_STARTED; + + return err; +} + +static void ar9170_usb_cancel_urbs(struct ar9170_usb *aru) +{ + int err; + + aru->common.state = AR9170_UNKNOWN_STATE; + + err = ar9170_usb_flush(&aru->common); + if (err) + dev_err(&aru->udev->dev, "stuck tx urbs!\n"); + + usb_poison_anchored_urbs(&aru->tx_submitted); + usb_poison_anchored_urbs(&aru->rx_submitted); +} + +static int ar9170_usb_exec_cmd(struct ar9170 *ar, enum ar9170_cmd cmd, + unsigned int plen, void *payload, + unsigned int outlen, void *out) +{ + struct ar9170_usb *aru = (void *) ar; + struct urb *urb = NULL; + unsigned long flags; + int err = -ENOMEM; + + if (unlikely(!IS_ACCEPTING_CMD(ar))) + return -EPERM; + + if (WARN_ON(plen > AR9170_MAX_CMD_LEN - 4)) + return -EINVAL; + + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (unlikely(!urb)) + goto err_free; + + ar->cmdbuf[0] = cpu_to_le32(plen); + ar->cmdbuf[0] |= cpu_to_le32(cmd << 8); + /* writing multiple regs fills this buffer already */ + if (plen && payload != (u8 *)(&ar->cmdbuf[1])) + memcpy(&ar->cmdbuf[1], payload, plen); + + spin_lock_irqsave(&aru->common.cmdlock, flags); + aru->readbuf = (u8 *)out; + aru->readlen = outlen; + spin_unlock_irqrestore(&aru->common.cmdlock, flags); + + usb_fill_int_urb(urb, aru->udev, + usb_sndbulkpipe(aru->udev, AR9170_EP_CMD), + aru->common.cmdbuf, plen + 4, + ar9170_usb_tx_urb_complete, NULL, 1); + + usb_anchor_urb(urb, &aru->tx_submitted); + err = usb_submit_urb(urb, GFP_ATOMIC); + if (unlikely(err)) { + usb_unanchor_urb(urb); + usb_free_urb(urb); + goto err_unbuf; + } + usb_free_urb(urb); + + err = wait_for_completion_timeout(&aru->cmd_wait, HZ); + if (err == 0) { + err = -ETIMEDOUT; + goto err_unbuf; + } + + if (aru->readlen != outlen) { + err = -EMSGSIZE; + goto err_unbuf; + } + + return 0; + +err_unbuf: + /* Maybe the device was removed in the second we were waiting? */ + if (IS_STARTED(ar)) { + dev_err(&aru->udev->dev, "no command feedback " + "received (%d).\n", err); + + /* provide some maybe useful debug information */ + print_hex_dump_bytes("ar9170 cmd: ", DUMP_PREFIX_NONE, + aru->common.cmdbuf, plen + 4); + dump_stack(); + } + + /* invalidate to avoid completing the next prematurely */ + spin_lock_irqsave(&aru->common.cmdlock, flags); + aru->readbuf = NULL; + aru->readlen = 0; + spin_unlock_irqrestore(&aru->common.cmdlock, flags); + +err_free: + + return err; +} + +static int ar9170_usb_tx(struct ar9170 *ar, struct sk_buff *skb) +{ + struct ar9170_usb *aru = (struct ar9170_usb *) ar; + struct urb *urb; + + if (unlikely(!IS_STARTED(ar))) { + /* Seriously, what were you drink... err... thinking!? */ + return -EPERM; + } + + urb = usb_alloc_urb(0, GFP_ATOMIC); + if (unlikely(!urb)) + return -ENOMEM; + + usb_fill_bulk_urb(urb, aru->udev, + usb_sndbulkpipe(aru->udev, AR9170_EP_TX), + skb->data, skb->len, + ar9170_usb_tx_urb_complete_frame, skb); + urb->transfer_flags |= URB_ZERO_PACKET; + + usb_anchor_urb(urb, &aru->tx_pending); + aru->tx_pending_urbs++; + + usb_free_urb(urb); + + ar9170_usb_submit_urb(aru); + return 0; +} + +static void ar9170_usb_callback_cmd(struct ar9170 *ar, u32 len , void *buffer) +{ + struct ar9170_usb *aru = (void *) ar; + unsigned long flags; + u32 in, out; + + if (unlikely(!buffer)) + return ; + + in = le32_to_cpup((__le32 *)buffer); + out = le32_to_cpu(ar->cmdbuf[0]); + + /* mask off length byte */ + out &= ~0xFF; + + if (aru->readlen >= 0) { + /* add expected length */ + out |= aru->readlen; + } else { + /* add obtained length */ + out |= in & 0xFF; + } + + /* + * Some commands (e.g: AR9170_CMD_FREQUENCY) have a variable response + * length and we cannot predict the correct length in advance. + * So we only check if we provided enough space for the data. + */ + if (unlikely(out < in)) { + dev_warn(&aru->udev->dev, "received invalid command response " + "got %d bytes, instead of %d bytes " + "and the resp length is %d bytes\n", + in, out, len); + print_hex_dump_bytes("ar9170 invalid resp: ", + DUMP_PREFIX_OFFSET, buffer, len); + /* + * Do not complete, then the command times out, + * and we get a stack trace from there. + */ + return ; + } + + spin_lock_irqsave(&aru->common.cmdlock, flags); + if (aru->readbuf && len > 0) { + memcpy(aru->readbuf, buffer + 4, len - 4); + aru->readbuf = NULL; + } + complete(&aru->cmd_wait); + spin_unlock_irqrestore(&aru->common.cmdlock, flags); +} + +static int ar9170_usb_upload(struct ar9170_usb *aru, const void *data, + size_t len, u32 addr, bool complete) +{ + int transfer, err; + u8 *buf = kmalloc(4096, GFP_KERNEL); + + if (!buf) + return -ENOMEM; + + while (len) { + transfer = min_t(int, len, 4096); + memcpy(buf, data, transfer); + + err = usb_control_msg(aru->udev, usb_sndctrlpipe(aru->udev, 0), + 0x30 /* FW DL */, 0x40 | USB_DIR_OUT, + addr >> 8, 0, buf, transfer, 1000); + + if (err < 0) { + kfree(buf); + return err; + } + + len -= transfer; + data += transfer; + addr += transfer; + } + kfree(buf); + + if (complete) { + err = usb_control_msg(aru->udev, usb_sndctrlpipe(aru->udev, 0), + 0x31 /* FW DL COMPLETE */, + 0x40 | USB_DIR_OUT, 0, 0, NULL, 0, 5000); + } + + return 0; +} + +static int ar9170_usb_request_firmware(struct ar9170_usb *aru) +{ + int err = 0; + + err = request_firmware(&aru->firmware, "ar9170.fw", + &aru->udev->dev); + if (!err) { + aru->init_values = NULL; + return 0; + } + + if (aru->req_one_stage_fw) { + dev_err(&aru->udev->dev, "ar9170.fw firmware file " + "not found and is required for this device\n"); + return -EINVAL; + } + + dev_err(&aru->udev->dev, "ar9170.fw firmware file " + "not found, trying old firmware...\n"); + + err = request_firmware(&aru->init_values, "ar9170-1.fw", + &aru->udev->dev); + + err = request_firmware(&aru->firmware, "ar9170-2.fw", &aru->udev->dev); + if (err) { + release_firmware(aru->init_values); + dev_err(&aru->udev->dev, "file with init values not found.\n"); + return err; + } + + return err; +} + +static int ar9170_usb_reset(struct ar9170_usb *aru) +{ + int ret, lock = (aru->intf->condition != USB_INTERFACE_BINDING); + + if (lock) { + ret = usb_lock_device_for_reset(aru->udev, aru->intf); + if (ret < 0) { + dev_err(&aru->udev->dev, "unable to lock device " + "for reset (%d).\n", ret); + return ret; + } + } + + ret = usb_reset_device(aru->udev); + if (lock) + usb_unlock_device(aru->udev); + + /* let it rest - for a second - */ + msleep(1000); + + return ret; +} + +static int ar9170_usb_upload_firmware(struct ar9170_usb *aru) +{ + int err; + + if (!aru->init_values) + goto upload_fw_start; + + /* First, upload initial values to device RAM */ + err = ar9170_usb_upload(aru, aru->init_values->data, + aru->init_values->size, 0x102800, false); + if (err) { + dev_err(&aru->udev->dev, "firmware part 1 " + "upload failed (%d).\n", err); + return err; + } + +upload_fw_start: + + /* Then, upload the firmware itself and start it */ + return ar9170_usb_upload(aru, aru->firmware->data, aru->firmware->size, + 0x200000, true); +} + +static int ar9170_usb_init_transport(struct ar9170_usb *aru) +{ + struct ar9170 *ar = (void *) &aru->common; + int err; + + ar9170_regwrite_begin(ar); + + /* Set USB Rx stream mode MAX packet number to 2 */ + ar9170_regwrite(AR9170_USB_REG_MAX_AGG_UPLOAD, 0x4); + + /* Set USB Rx stream mode timeout to 10us */ + ar9170_regwrite(AR9170_USB_REG_UPLOAD_TIME_CTL, 0x80); + + ar9170_regwrite_finish(); + + err = ar9170_regwrite_result(); + if (err) + dev_err(&aru->udev->dev, "USB setup failed (%d).\n", err); + + return err; +} + +static void ar9170_usb_stop(struct ar9170 *ar) +{ + struct ar9170_usb *aru = (void *) ar; + int ret; + + if (IS_ACCEPTING_CMD(ar)) + aru->common.state = AR9170_STOPPED; + + ret = ar9170_usb_flush(ar); + if (ret) + dev_err(&aru->udev->dev, "kill pending tx urbs.\n"); + + usb_poison_anchored_urbs(&aru->tx_submitted); + + /* + * Note: + * So far we freed all tx urbs, but we won't dare to touch any rx urbs. + * Else we would end up with a unresponsive device... + */ +} + +static int ar9170_usb_open(struct ar9170 *ar) +{ + struct ar9170_usb *aru = (void *) ar; + int err; + + usb_unpoison_anchored_urbs(&aru->tx_submitted); + err = ar9170_usb_init_transport(aru); + if (err) { + usb_poison_anchored_urbs(&aru->tx_submitted); + return err; + } + + aru->common.state = AR9170_IDLE; + return 0; +} + +static int ar9170_usb_init_device(struct ar9170_usb *aru) +{ + int err; + + err = ar9170_usb_alloc_rx_irq_urb(aru); + if (err) + goto err_out; + + err = ar9170_usb_alloc_rx_bulk_urbs(aru); + if (err) + goto err_unrx; + + err = ar9170_usb_upload_firmware(aru); + if (err) { + err = ar9170_echo_test(&aru->common, 0x60d43110); + if (err) { + /* force user invention, by disabling the device */ + err = usb_driver_set_configuration(aru->udev, -1); + dev_err(&aru->udev->dev, "device is in a bad state. " + "please reconnect it!\n"); + goto err_unrx; + } + } + + return 0; + +err_unrx: + ar9170_usb_cancel_urbs(aru); + +err_out: + return err; +} + +static bool ar9170_requires_one_stage(const struct usb_device_id *id) +{ + if (!id->driver_info) + return false; + if (id->driver_info == AR9170_REQ_FW1_ONLY) + return true; + return false; +} + +static int ar9170_usb_probe(struct usb_interface *intf, + const struct usb_device_id *id) +{ + struct ar9170_usb *aru; + struct ar9170 *ar; + struct usb_device *udev; + int err; + + aru = ar9170_alloc(sizeof(*aru)); + if (IS_ERR(aru)) { + err = PTR_ERR(aru); + goto out; + } + + udev = interface_to_usbdev(intf); + usb_get_dev(udev); + aru->udev = udev; + aru->intf = intf; + ar = &aru->common; + + aru->req_one_stage_fw = ar9170_requires_one_stage(id); + + usb_set_intfdata(intf, aru); + SET_IEEE80211_DEV(ar->hw, &udev->dev); + + init_usb_anchor(&aru->rx_submitted); + init_usb_anchor(&aru->tx_pending); + init_usb_anchor(&aru->tx_submitted); + init_completion(&aru->cmd_wait); + spin_lock_init(&aru->tx_urb_lock); + + aru->tx_pending_urbs = 0; + aru->tx_submitted_urbs = 0; + + aru->common.stop = ar9170_usb_stop; + aru->common.flush = ar9170_usb_flush; + aru->common.open = ar9170_usb_open; + aru->common.tx = ar9170_usb_tx; + aru->common.exec_cmd = ar9170_usb_exec_cmd; + aru->common.callback_cmd = ar9170_usb_callback_cmd; + +#ifdef CONFIG_PM + udev->reset_resume = 1; +#endif /* CONFIG_PM */ + err = ar9170_usb_reset(aru); + if (err) + goto err_freehw; + + err = ar9170_usb_request_firmware(aru); + if (err) + goto err_freehw; + + err = ar9170_usb_init_device(aru); + if (err) + goto err_freefw; + + err = ar9170_usb_open(ar); + if (err) + goto err_unrx; + + err = ar9170_register(ar, &udev->dev); + + ar9170_usb_stop(ar); + if (err) + goto err_unrx; + + return 0; + +err_unrx: + ar9170_usb_cancel_urbs(aru); + +err_freefw: + release_firmware(aru->init_values); + release_firmware(aru->firmware); + +err_freehw: + usb_set_intfdata(intf, NULL); + usb_put_dev(udev); + ieee80211_free_hw(ar->hw); +out: + return err; +} + +static void ar9170_usb_disconnect(struct usb_interface *intf) +{ + struct ar9170_usb *aru = usb_get_intfdata(intf); + + if (!aru) + return; + + aru->common.state = AR9170_IDLE; + ar9170_unregister(&aru->common); + ar9170_usb_cancel_urbs(aru); + + release_firmware(aru->init_values); + release_firmware(aru->firmware); + + usb_put_dev(aru->udev); + usb_set_intfdata(intf, NULL); + ieee80211_free_hw(aru->common.hw); +} + +#ifdef CONFIG_PM +static int ar9170_suspend(struct usb_interface *intf, + pm_message_t message) +{ + struct ar9170_usb *aru = usb_get_intfdata(intf); + + if (!aru) + return -ENODEV; + + aru->common.state = AR9170_IDLE; + ar9170_usb_cancel_urbs(aru); + + return 0; +} + +static int ar9170_resume(struct usb_interface *intf) +{ + struct ar9170_usb *aru = usb_get_intfdata(intf); + int err; + + if (!aru) + return -ENODEV; + + usb_unpoison_anchored_urbs(&aru->rx_submitted); + usb_unpoison_anchored_urbs(&aru->tx_submitted); + + err = ar9170_usb_init_device(aru); + if (err) + goto err_unrx; + + err = ar9170_usb_open(&aru->common); + if (err) + goto err_unrx; + + return 0; + +err_unrx: + aru->common.state = AR9170_IDLE; + ar9170_usb_cancel_urbs(aru); + + return err; +} +#endif /* CONFIG_PM */ + +static struct usb_driver ar9170_driver = { + .name = "ar9170usb", + .probe = ar9170_usb_probe, + .disconnect = ar9170_usb_disconnect, + .id_table = ar9170_usb_ids, + .soft_unbind = 1, +#ifdef CONFIG_PM + .suspend = ar9170_suspend, + .resume = ar9170_resume, + .reset_resume = ar9170_resume, +#endif /* CONFIG_PM */ +}; + +static int __init ar9170_init(void) +{ + return usb_register(&ar9170_driver); +} + +static void __exit ar9170_exit(void) +{ + usb_deregister(&ar9170_driver); +} + +module_init(ar9170_init); +module_exit(ar9170_exit); diff --git a/drivers/net/wireless/ath/ar9170/usb.h b/drivers/net/wireless/ath/ar9170/usb.h new file mode 100644 index 00000000000..d098f4d5d2f --- /dev/null +++ b/drivers/net/wireless/ath/ar9170/usb.h @@ -0,0 +1,81 @@ +/* + * Atheros AR9170 USB driver + * + * Driver specific definitions + * + * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> + * Copyright 2009, Christian Lamparter <chunkeey@web.de> + * + * 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 __USB_H +#define __USB_H + +#include <linux/usb.h> +#include <linux/completion.h> +#include <linux/spinlock.h> +#include <linux/leds.h> +#include <net/cfg80211.h> +#include <net/mac80211.h> +#include <linux/firmware.h> +#include "eeprom.h" +#include "hw.h" +#include "ar9170.h" + +#define AR9170_NUM_RX_URBS 16 +#define AR9170_NUM_TX_URBS 8 + +struct firmware; + +struct ar9170_usb { + struct ar9170 common; + struct usb_device *udev; + struct usb_interface *intf; + + struct usb_anchor rx_submitted; + struct usb_anchor tx_pending; + struct usb_anchor tx_submitted; + + bool req_one_stage_fw; + + spinlock_t tx_urb_lock; + unsigned int tx_submitted_urbs; + unsigned int tx_pending_urbs; + + struct completion cmd_wait; + int readlen; + u8 *readbuf; + + const struct firmware *init_values; + const struct firmware *firmware; +}; + +#endif /* __USB_H */ |