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Commit fb9987d0 authored by Sujith's avatar Sujith Committed by John W. Linville
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ath9k_htc: Support for AR9271 chipset. 

Features:

 * Station mode
 * IBSS mode
 * Monitor mode
 * Legacy support
 * HT support
 * TX/RX 11n Aggregation
 * HW encryption
 * LED
 * Suspend/Resume

For more information: http://wireless.kernel.org/en/users/Drivers/ath9k_htcSigned-off-by: default avatarSujith <Sujith.Manoharan@atheros.com>
Signed-off-by: default avatarVasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: default avatarSenthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 736b3a27
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Showing with 6393 additions and 1 deletion
drivers/net/wireless/ath/Kconfig
View file @ fb9987d0
...@@ -3,7 +3,7 @@ menuconfig ATH_COMMON ...@@ -3,7 +3,7 @@ menuconfig ATH_COMMON
depends on CFG80211 depends on CFG80211
---help--- ---help---
This will enable the support for the Atheros wireless drivers. This will enable the support for the Atheros wireless drivers.
ath5k, ath9k and ar9170 drivers share some common code, this option ath5k, ath9k, ath9k_htc and ar9170 drivers share some common code, this option
enables the common ath.ko module which shares common helpers. enables the common ath.ko module which shares common helpers.
For more information and documentation on this module you can visit: For more information and documentation on this module you can visit:
......
drivers/net/wireless/ath/ath9k/Kconfig
View file @ fb9987d0
...@@ -32,3 +32,24 @@ config ATH9K_DEBUGFS ...@@ -32,3 +32,24 @@ config ATH9K_DEBUGFS
Also required for changing debug message flags at run time. Also required for changing debug message flags at run time.
config ATH9K_HTC
tristate "Atheros HTC based wireless cards support"
depends on USB && MAC80211
select ATH9K_HW
select MAC80211_LEDS
select LEDS_CLASS
select NEW_LEDS
select ATH9K_COMMON
---help---
Support for Atheros HTC based cards.
Chipsets supported: AR9271
For more information: http://wireless.kernel.org/en/users/Drivers/ath9k_htc
The built module will be ath9k_htc.
config ATH9K_HTC_DEBUGFS
bool "Atheros ath9k_htc debugging"
depends on ATH9K_HTC && DEBUG_FS
---help---
Say Y, if you need access to ath9k_htc's statistics.
drivers/net/wireless/ath/ath9k/Makefile
View file @ fb9987d0
...@@ -28,3 +28,13 @@ obj-$(CONFIG_ATH9K_HW) += ath9k_hw.o ...@@ -28,3 +28,13 @@ obj-$(CONFIG_ATH9K_HW) += ath9k_hw.o
obj-$(CONFIG_ATH9K_COMMON) += ath9k_common.o obj-$(CONFIG_ATH9K_COMMON) += ath9k_common.o
ath9k_common-y:= common.o ath9k_common-y:= common.o
ath9k_htc-y += htc_hst.o \
hif_usb.o \
wmi.o \
htc_drv_txrx.o \
htc_drv_main.o \
htc_drv_beacon.o \
htc_drv_init.o
obj-$(CONFIG_ATH9K_HTC) += ath9k_htc.o
drivers/net/wireless/ath/ath9k/common.c
View file @ fb9987d0
...@@ -286,6 +286,427 @@ int ath9k_cmn_padpos(__le16 frame_control) ...@@ -286,6 +286,427 @@ int ath9k_cmn_padpos(__le16 frame_control)
} }
EXPORT_SYMBOL(ath9k_cmn_padpos); EXPORT_SYMBOL(ath9k_cmn_padpos);
int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
if (tx_info->control.hw_key) {
if (tx_info->control.hw_key->alg == ALG_WEP)
return ATH9K_KEY_TYPE_WEP;
else if (tx_info->control.hw_key->alg == ALG_TKIP)
return ATH9K_KEY_TYPE_TKIP;
else if (tx_info->control.hw_key->alg == ALG_CCMP)
return ATH9K_KEY_TYPE_AES;
}
return ATH9K_KEY_TYPE_CLEAR;
}
EXPORT_SYMBOL(ath9k_cmn_get_hw_crypto_keytype);
/*
* Calculate the RX filter to be set in the HW.
*/
u32 ath9k_cmn_calcrxfilter(struct ieee80211_hw *hw, struct ath_hw *ah,
unsigned int rxfilter)
{
#define RX_FILTER_PRESERVE (ATH9K_RX_FILTER_PHYERR | ATH9K_RX_FILTER_PHYRADAR)
u32 rfilt;
rfilt = (ath9k_hw_getrxfilter(ah) & RX_FILTER_PRESERVE)
| ATH9K_RX_FILTER_UCAST | ATH9K_RX_FILTER_BCAST
| ATH9K_RX_FILTER_MCAST;
/* If not a STA, enable processing of Probe Requests */
if (ah->opmode != NL80211_IFTYPE_STATION)
rfilt |= ATH9K_RX_FILTER_PROBEREQ;
/*
* Set promiscuous mode when FIF_PROMISC_IN_BSS is enabled for station
* mode interface or when in monitor mode. AP mode does not need this
* since it receives all in-BSS frames anyway.
*/
if (((ah->opmode != NL80211_IFTYPE_AP) &&
(rxfilter & FIF_PROMISC_IN_BSS)) ||
(ah->opmode == NL80211_IFTYPE_MONITOR))
rfilt |= ATH9K_RX_FILTER_PROM;
if (rxfilter & FIF_CONTROL)
rfilt |= ATH9K_RX_FILTER_CONTROL;
if ((ah->opmode == NL80211_IFTYPE_STATION) &&
!(rxfilter & FIF_BCN_PRBRESP_PROMISC))
rfilt |= ATH9K_RX_FILTER_MYBEACON;
else
rfilt |= ATH9K_RX_FILTER_BEACON;
if ((AR_SREV_9280_10_OR_LATER(ah) ||
AR_SREV_9285_10_OR_LATER(ah)) &&
(ah->opmode == NL80211_IFTYPE_AP) &&
(rxfilter & FIF_PSPOLL))
rfilt |= ATH9K_RX_FILTER_PSPOLL;
if (conf_is_ht(&hw->conf))
rfilt |= ATH9K_RX_FILTER_COMP_BAR;
return rfilt;
#undef RX_FILTER_PRESERVE
}
EXPORT_SYMBOL(ath9k_cmn_calcrxfilter);
/*
* Recv initialization for opmode change.
*/
void ath9k_cmn_opmode_init(struct ieee80211_hw *hw, struct ath_hw *ah,
unsigned int rxfilter)
{
struct ath_common *common = ath9k_hw_common(ah);
u32 rfilt, mfilt[2];
/* configure rx filter */
rfilt = ath9k_cmn_calcrxfilter(hw, ah, rxfilter);
ath9k_hw_setrxfilter(ah, rfilt);
/* configure bssid mask */
if (ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
ath_hw_setbssidmask(common);
/* configure operational mode */
ath9k_hw_setopmode(ah);
/* Handle any link-level address change. */
ath9k_hw_setmac(ah, common->macaddr);
/* calculate and install multicast filter */
mfilt[0] = mfilt[1] = ~0;
ath9k_hw_setmcastfilter(ah, mfilt[0], mfilt[1]);
}
EXPORT_SYMBOL(ath9k_cmn_opmode_init);
static u32 ath9k_get_extchanmode(struct ieee80211_channel *chan,
enum nl80211_channel_type channel_type)
{
u32 chanmode = 0;
switch (chan->band) {
case IEEE80211_BAND_2GHZ:
switch (channel_type) {
case NL80211_CHAN_NO_HT:
case NL80211_CHAN_HT20:
chanmode = CHANNEL_G_HT20;
break;
case NL80211_CHAN_HT40PLUS:
chanmode = CHANNEL_G_HT40PLUS;
break;
case NL80211_CHAN_HT40MINUS:
chanmode = CHANNEL_G_HT40MINUS;
break;
}
break;
case IEEE80211_BAND_5GHZ:
switch (channel_type) {
case NL80211_CHAN_NO_HT:
case NL80211_CHAN_HT20:
chanmode = CHANNEL_A_HT20;
break;
case NL80211_CHAN_HT40PLUS:
chanmode = CHANNEL_A_HT40PLUS;
break;
case NL80211_CHAN_HT40MINUS:
chanmode = CHANNEL_A_HT40MINUS;
break;
}
break;
default:
break;
}
return chanmode;
}
/*
* Update internal channel flags.
*/
void ath9k_cmn_update_ichannel(struct ieee80211_hw *hw,
struct ath9k_channel *ichan)
{
struct ieee80211_channel *chan = hw->conf.channel;
struct ieee80211_conf *conf = &hw->conf;
ichan->channel = chan->center_freq;
ichan->chan = chan;
if (chan->band == IEEE80211_BAND_2GHZ) {
ichan->chanmode = CHANNEL_G;
ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM | CHANNEL_G;
} else {
ichan->chanmode = CHANNEL_A;
ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM;
}
if (conf_is_ht(conf))
ichan->chanmode = ath9k_get_extchanmode(chan,
conf->channel_type);
}
EXPORT_SYMBOL(ath9k_cmn_update_ichannel);
/*
* Get the internal channel reference.
*/
struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
struct ath_hw *ah)
{
struct ieee80211_channel *curchan = hw->conf.channel;
struct ath9k_channel *channel;
u8 chan_idx;
chan_idx = curchan->hw_value;
channel = &ah->channels[chan_idx];
ath9k_cmn_update_ichannel(hw, channel);
return channel;
}
EXPORT_SYMBOL(ath9k_cmn_get_curchannel);
static int ath_setkey_tkip(struct ath_common *common, u16 keyix, const u8 *key,
struct ath9k_keyval *hk, const u8 *addr,
bool authenticator)
{
struct ath_hw *ah = common->ah;
const u8 *key_rxmic;
const u8 *key_txmic;
key_txmic = key + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY;
key_rxmic = key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY;
if (addr == NULL) {
/*
* Group key installation - only two key cache entries are used
* regardless of splitmic capability since group key is only
* used either for TX or RX.
*/
if (authenticator) {
memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic));
memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_mic));
} else {
memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
memcpy(hk->kv_txmic, key_rxmic, sizeof(hk->kv_mic));
}
return ath9k_hw_set_keycache_entry(ah, keyix, hk, addr);
}
if (!common->splitmic) {
/* TX and RX keys share the same key cache entry. */
memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
memcpy(hk->kv_txmic, key_txmic, sizeof(hk->kv_txmic));
return ath9k_hw_set_keycache_entry(ah, keyix, hk, addr);
}
/* Separate key cache entries for TX and RX */
/* TX key goes at first index, RX key at +32. */
memcpy(hk->kv_mic, key_txmic, sizeof(hk->kv_mic));
if (!ath9k_hw_set_keycache_entry(ah, keyix, hk, NULL)) {
/* TX MIC entry failed. No need to proceed further */
ath_print(common, ATH_DBG_FATAL,
"Setting TX MIC Key Failed\n");
return 0;
}
memcpy(hk->kv_mic, key_rxmic, sizeof(hk->kv_mic));
/* XXX delete tx key on failure? */
return ath9k_hw_set_keycache_entry(ah, keyix + 32, hk, addr);
}
static int ath_reserve_key_cache_slot_tkip(struct ath_common *common)
{
int i;
for (i = IEEE80211_WEP_NKID; i < common->keymax / 2; i++) {
if (test_bit(i, common->keymap) ||
test_bit(i + 64, common->keymap))
continue; /* At least one part of TKIP key allocated */
if (common->splitmic &&
(test_bit(i + 32, common->keymap) ||
test_bit(i + 64 + 32, common->keymap)))
continue; /* At least one part of TKIP key allocated */
/* Found a free slot for a TKIP key */
return i;
}
return -1;
}
static int ath_reserve_key_cache_slot(struct ath_common *common)
{
int i;
/* First, try to find slots that would not be available for TKIP. */
if (common->splitmic) {
for (i = IEEE80211_WEP_NKID; i < common->keymax / 4; i++) {
if (!test_bit(i, common->keymap) &&
(test_bit(i + 32, common->keymap) ||
test_bit(i + 64, common->keymap) ||
test_bit(i + 64 + 32, common->keymap)))
return i;
if (!test_bit(i + 32, common->keymap) &&
(test_bit(i, common->keymap) ||
test_bit(i + 64, common->keymap) ||
test_bit(i + 64 + 32, common->keymap)))
return i + 32;
if (!test_bit(i + 64, common->keymap) &&
(test_bit(i , common->keymap) ||
test_bit(i + 32, common->keymap) ||
test_bit(i + 64 + 32, common->keymap)))
return i + 64;
if (!test_bit(i + 64 + 32, common->keymap) &&
(test_bit(i, common->keymap) ||
test_bit(i + 32, common->keymap) ||
test_bit(i + 64, common->keymap)))
return i + 64 + 32;
}
} else {
for (i = IEEE80211_WEP_NKID; i < common->keymax / 2; i++) {
if (!test_bit(i, common->keymap) &&
test_bit(i + 64, common->keymap))
return i;
if (test_bit(i, common->keymap) &&
!test_bit(i + 64, common->keymap))
return i + 64;
}
}
/* No partially used TKIP slots, pick any available slot */
for (i = IEEE80211_WEP_NKID; i < common->keymax; i++) {
/* Do not allow slots that could be needed for TKIP group keys
* to be used. This limitation could be removed if we know that
* TKIP will not be used. */
if (i >= 64 && i < 64 + IEEE80211_WEP_NKID)
continue;
if (common->splitmic) {
if (i >= 32 && i < 32 + IEEE80211_WEP_NKID)
continue;
if (i >= 64 + 32 && i < 64 + 32 + IEEE80211_WEP_NKID)
continue;
}
if (!test_bit(i, common->keymap))
return i; /* Found a free slot for a key */
}
/* No free slot found */
return -1;
}
/*
* Configure encryption in the HW.
*/
int ath9k_cmn_key_config(struct ath_common *common,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct ieee80211_key_conf *key)
{
struct ath_hw *ah = common->ah;
struct ath9k_keyval hk;
const u8 *mac = NULL;
int ret = 0;
int idx;
memset(&hk, 0, sizeof(hk));
switch (key->alg) {
case ALG_WEP:
hk.kv_type = ATH9K_CIPHER_WEP;
break;
case ALG_TKIP:
hk.kv_type = ATH9K_CIPHER_TKIP;
break;
case ALG_CCMP:
hk.kv_type = ATH9K_CIPHER_AES_CCM;
break;
default:
return -EOPNOTSUPP;
}
hk.kv_len = key->keylen;
memcpy(hk.kv_val, key->key, key->keylen);
if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
/* For now, use the default keys for broadcast keys. This may
* need to change with virtual interfaces. */
idx = key->keyidx;
} else if (key->keyidx) {
if (WARN_ON(!sta))
return -EOPNOTSUPP;
mac = sta->addr;
if (vif->type != NL80211_IFTYPE_AP) {
/* Only keyidx 0 should be used with unicast key, but
* allow this for client mode for now. */
idx = key->keyidx;
} else
return -EIO;
} else {
if (WARN_ON(!sta))
return -EOPNOTSUPP;
mac = sta->addr;
if (key->alg == ALG_TKIP)
idx = ath_reserve_key_cache_slot_tkip(common);
else
idx = ath_reserve_key_cache_slot(common);
if (idx < 0)
return -ENOSPC; /* no free key cache entries */
}
if (key->alg == ALG_TKIP)
ret = ath_setkey_tkip(common, idx, key->key, &hk, mac,
vif->type == NL80211_IFTYPE_AP);
else
ret = ath9k_hw_set_keycache_entry(ah, idx, &hk, mac);
if (!ret)
return -EIO;
set_bit(idx, common->keymap);
if (key->alg == ALG_TKIP) {
set_bit(idx + 64, common->keymap);
if (common->splitmic) {
set_bit(idx + 32, common->keymap);
set_bit(idx + 64 + 32, common->keymap);
}
}
return idx;
}
EXPORT_SYMBOL(ath9k_cmn_key_config);
/*
* Delete Key.
*/
void ath9k_cmn_key_delete(struct ath_common *common,
struct ieee80211_key_conf *key)
{
struct ath_hw *ah = common->ah;
ath9k_hw_keyreset(ah, key->hw_key_idx);
if (key->hw_key_idx < IEEE80211_WEP_NKID)
return;
clear_bit(key->hw_key_idx, common->keymap);
if (key->alg != ALG_TKIP)
return;
clear_bit(key->hw_key_idx + 64, common->keymap);
if (common->splitmic) {
ath9k_hw_keyreset(ah, key->hw_key_idx + 32);
clear_bit(key->hw_key_idx + 32, common->keymap);
clear_bit(key->hw_key_idx + 64 + 32, common->keymap);
}
}
EXPORT_SYMBOL(ath9k_cmn_key_delete);
static int __init ath9k_cmn_init(void) static int __init ath9k_cmn_init(void)
{ {
return 0; return 0;
......
drivers/net/wireless/ath/ath9k/common.h
View file @ fb9987d0
...@@ -23,6 +23,8 @@ ...@@ -23,6 +23,8 @@
/* Common header for Atheros 802.11n base driver cores */ /* Common header for Atheros 802.11n base driver cores */
#define IEEE80211_WEP_NKID 4
#define WME_NUM_TID 16 #define WME_NUM_TID 16
#define WME_BA_BMP_SIZE 64 #define WME_BA_BMP_SIZE 64
#define WME_MAX_BA WME_BA_BMP_SIZE #define WME_MAX_BA WME_BA_BMP_SIZE
...@@ -125,3 +127,18 @@ void ath9k_cmn_rx_skb_postprocess(struct ath_common *common, ...@@ -125,3 +127,18 @@ void ath9k_cmn_rx_skb_postprocess(struct ath_common *common,
bool decrypt_error); bool decrypt_error);
int ath9k_cmn_padpos(__le16 frame_control); int ath9k_cmn_padpos(__le16 frame_control);
int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
u32 ath9k_cmn_calcrxfilter(struct ieee80211_hw *hw, struct ath_hw *ah,
unsigned int rxfilter);
void ath9k_cmn_opmode_init(struct ieee80211_hw *hw, struct ath_hw *ah,
unsigned int rxfilter);
void ath9k_cmn_update_ichannel(struct ieee80211_hw *hw,
struct ath9k_channel *ichan);
struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
struct ath_hw *ah);
int ath9k_cmn_key_config(struct ath_common *common,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta,
struct ieee80211_key_conf *key);
void ath9k_cmn_key_delete(struct ath_common *common,
struct ieee80211_key_conf *key);
drivers/net/wireless/ath/ath9k/hif_usb.c 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 "htc.h"
#define ATH9K_FW_USB_DEV(devid, fw) \
{ USB_DEVICE(0x0cf3, devid), .driver_info = (unsigned long) fw }
static struct usb_device_id ath9k_hif_usb_ids[] = {
ATH9K_FW_USB_DEV(0x9271, "ar9271.fw"),
{ },
};
MODULE_DEVICE_TABLE(usb, ath9k_hif_usb_ids);
static int __hif_usb_tx(struct hif_device_usb *hif_dev);
static void hif_usb_regout_cb(struct urb *urb)
{
struct cmd_buf *cmd = (struct cmd_buf *)urb->context;
struct hif_device_usb *hif_dev = cmd->hif_dev;
if (!hif_dev) {
usb_free_urb(urb);
if (cmd) {
if (cmd->skb)
dev_kfree_skb_any(cmd->skb);
kfree(cmd);
}
return;
}
switch (urb->status) {
case 0:
break;
case -ENOENT:
case -ECONNRESET:
break;
case -ENODEV:
case -ESHUTDOWN:
return;
default:
break;
}
if (cmd) {
ath9k_htc_txcompletion_cb(cmd->hif_dev->htc_handle,
cmd->skb, 1);
kfree(cmd);
usb_free_urb(urb);
}
}
static int hif_usb_send_regout(struct hif_device_usb *hif_dev,
struct sk_buff *skb)
{
struct urb *urb;
struct cmd_buf *cmd;
int ret = 0;
urb = usb_alloc_urb(0, GFP_KERNEL);
if (urb == NULL)
return -ENOMEM;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (cmd == NULL) {
usb_free_urb(urb);
return -ENOMEM;
}
cmd->skb = skb;
cmd->hif_dev = hif_dev;
usb_fill_int_urb(urb, hif_dev->udev,
usb_sndintpipe(hif_dev->udev, USB_REG_OUT_PIPE),
skb->data, skb->len,
hif_usb_regout_cb, cmd, 1);
ret = usb_submit_urb(urb, GFP_KERNEL);
if (ret) {
usb_free_urb(urb);
kfree(cmd);
}
return ret;
}
static void hif_usb_tx_cb(struct urb *urb)
{
struct tx_buf *tx_buf = (struct tx_buf *) urb->context;
struct hif_device_usb *hif_dev = tx_buf->hif_dev;
struct sk_buff *skb;
bool drop, flush;
if (!hif_dev)
return;
switch (urb->status) {
case 0:
break;
case -ENOENT:
case -ECONNRESET:
break;
case -ENODEV:
case -ESHUTDOWN:
return;
default:
break;
}
if (tx_buf) {
spin_lock(&hif_dev->tx.tx_lock);
drop = !!(hif_dev->tx.flags & HIF_USB_TX_STOP);
flush = !!(hif_dev->tx.flags & HIF_USB_TX_FLUSH);
spin_unlock(&hif_dev->tx.tx_lock);
while ((skb = __skb_dequeue(&tx_buf->skb_queue)) != NULL) {
if (!drop && !flush) {
ath9k_htc_txcompletion_cb(hif_dev->htc_handle,
skb, 1);
TX_STAT_INC(skb_completed);
} else {
dev_kfree_skb_any(skb);
}
}
if (flush)
return;
tx_buf->len = tx_buf->offset = 0;
__skb_queue_head_init(&tx_buf->skb_queue);
spin_lock(&hif_dev->tx.tx_lock);
list_del(&tx_buf->list);
list_add_tail(&tx_buf->list, &hif_dev->tx.tx_buf);
hif_dev->tx.tx_buf_cnt++;
if (!drop)
__hif_usb_tx(hif_dev); /* Check for pending SKBs */
TX_STAT_INC(buf_completed);
spin_unlock(&hif_dev->tx.tx_lock);
}
}
/* TX lock has to be taken */
static int __hif_usb_tx(struct hif_device_usb *hif_dev)
{
struct tx_buf *tx_buf = NULL;
struct sk_buff *nskb = NULL;
int ret = 0, i;
u16 *hdr, tx_skb_cnt = 0;
u8 *buf;
if (hif_dev->tx.tx_skb_cnt == 0)
return 0;
/* Check if a free TX buffer is available */
if (list_empty(&hif_dev->tx.tx_buf))
return 0;
tx_buf = list_first_entry(&hif_dev->tx.tx_buf, struct tx_buf, list);
list_del(&tx_buf->list);
list_add_tail(&tx_buf->list, &hif_dev->tx.tx_pending);
hif_dev->tx.tx_buf_cnt--;
tx_skb_cnt = min_t(u16, hif_dev->tx.tx_skb_cnt, MAX_TX_AGGR_NUM);
for (i = 0; i < tx_skb_cnt; i++) {
nskb = __skb_dequeue(&hif_dev->tx.tx_skb_queue);
/* Should never be NULL */
BUG_ON(!nskb);
hif_dev->tx.tx_skb_cnt--;
buf = tx_buf->buf;
buf += tx_buf->offset;
hdr = (u16 *)buf;
*hdr++ = nskb->len;
*hdr++ = ATH_USB_TX_STREAM_MODE_TAG;
buf += 4;
memcpy(buf, nskb->data, nskb->len);
tx_buf->len = nskb->len + 4;
if (i < (tx_skb_cnt - 1))
tx_buf->offset += (((tx_buf->len - 1) / 4) + 1) * 4;
if (i == (tx_skb_cnt - 1))
tx_buf->len += tx_buf->offset;
__skb_queue_tail(&tx_buf->skb_queue, nskb);
TX_STAT_INC(skb_queued);
}
usb_fill_bulk_urb(tx_buf->urb, hif_dev->udev,
usb_sndbulkpipe(hif_dev->udev, USB_WLAN_TX_PIPE),
tx_buf->buf, tx_buf->len,
hif_usb_tx_cb, tx_buf);
ret = usb_submit_urb(tx_buf->urb, GFP_ATOMIC);
if (ret) {
tx_buf->len = tx_buf->offset = 0;
__skb_queue_purge(&tx_buf->skb_queue);
__skb_queue_head_init(&tx_buf->skb_queue);
list_move_tail(&tx_buf->list, &hif_dev->tx.tx_buf);
hif_dev->tx.tx_buf_cnt++;
}
if (!ret)
TX_STAT_INC(buf_queued);
return ret;
}
static int hif_usb_send_tx(struct hif_device_usb *hif_dev, struct sk_buff *skb,
struct ath9k_htc_tx_ctl *tx_ctl)
{
unsigned long flags;
spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
if (hif_dev->tx.flags & HIF_USB_TX_STOP) {
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
return -ENODEV;
}
/* Check if the max queue count has been reached */
if (hif_dev->tx.tx_skb_cnt > MAX_TX_BUF_NUM) {
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
return -ENOMEM;
}
__skb_queue_tail(&hif_dev->tx.tx_skb_queue, skb);
hif_dev->tx.tx_skb_cnt++;
/* Send normal frames immediately */
if (!tx_ctl || (tx_ctl && (tx_ctl->type == ATH9K_HTC_NORMAL)))
__hif_usb_tx(hif_dev);
/* Check if AMPDUs have to be sent immediately */
if (tx_ctl && (tx_ctl->type == ATH9K_HTC_AMPDU) &&
(hif_dev->tx.tx_buf_cnt == MAX_TX_URB_NUM) &&
(hif_dev->tx.tx_skb_cnt < 2)) {
__hif_usb_tx(hif_dev);
}
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
return 0;
}
static void hif_usb_start(void *hif_handle, u8 pipe_id)
{
struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle;
unsigned long flags;
hif_dev->flags |= HIF_USB_START;
spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
hif_dev->tx.flags &= ~HIF_USB_TX_STOP;
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
}
static void hif_usb_stop(void *hif_handle, u8 pipe_id)
{
struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle;
unsigned long flags;
spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
__skb_queue_purge(&hif_dev->tx.tx_skb_queue);
hif_dev->tx.tx_skb_cnt = 0;
hif_dev->tx.flags |= HIF_USB_TX_STOP;
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
}
static int hif_usb_send(void *hif_handle, u8 pipe_id, struct sk_buff *skb,
struct ath9k_htc_tx_ctl *tx_ctl)
{
struct hif_device_usb *hif_dev = (struct hif_device_usb *)hif_handle;
int ret = 0;
switch (pipe_id) {
case USB_WLAN_TX_PIPE:
ret = hif_usb_send_tx(hif_dev, skb, tx_ctl);
break;
case USB_REG_OUT_PIPE:
ret = hif_usb_send_regout(hif_dev, skb);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static struct ath9k_htc_hif hif_usb = {
.transport = ATH9K_HIF_USB,
.name = "ath9k_hif_usb",
.control_ul_pipe = USB_REG_OUT_PIPE,
.control_dl_pipe = USB_REG_IN_PIPE,
.start = hif_usb_start,
.stop = hif_usb_stop,
.send = hif_usb_send,
};
static void ath9k_hif_usb_rx_stream(struct hif_device_usb *hif_dev,
struct sk_buff *skb)
{
struct sk_buff *nskb, *skb_pool[8];
int index = 0, i = 0, chk_idx, len = skb->len;
int rx_remain_len = 0, rx_pkt_len = 0;
u16 pkt_len, pkt_tag, pool_index = 0;
u8 *ptr;
rx_remain_len = hif_dev->rx_remain_len;
rx_pkt_len = hif_dev->rx_transfer_len;
if (rx_remain_len != 0) {
struct sk_buff *remain_skb = hif_dev->remain_skb;
if (remain_skb) {
ptr = (u8 *) remain_skb->data;
index = rx_remain_len;
rx_remain_len -= hif_dev->rx_pad_len;
ptr += rx_pkt_len;
memcpy(ptr, skb->data, rx_remain_len);
rx_pkt_len += rx_remain_len;
hif_dev->rx_remain_len = 0;
skb_put(remain_skb, rx_pkt_len);
skb_pool[pool_index++] = remain_skb;
} else {
index = rx_remain_len;
}
}
while (index < len) {
ptr = (u8 *) skb->data;
pkt_len = ptr[index] + (ptr[index+1] << 8);
pkt_tag = ptr[index+2] + (ptr[index+3] << 8);
if (pkt_tag == ATH_USB_RX_STREAM_MODE_TAG) {
u16 pad_len;
pad_len = 4 - (pkt_len & 0x3);
if (pad_len == 4)
pad_len = 0;
chk_idx = index;
index = index + 4 + pkt_len + pad_len;
if (index > MAX_RX_BUF_SIZE) {
hif_dev->rx_remain_len = index - MAX_RX_BUF_SIZE;
hif_dev->rx_transfer_len =
MAX_RX_BUF_SIZE - chk_idx - 4;
hif_dev->rx_pad_len = pad_len;
nskb = __dev_alloc_skb(pkt_len + 32,
GFP_ATOMIC);
if (!nskb) {
dev_err(&hif_dev->udev->dev,
"ath9k_htc: RX memory allocation"
" error\n");
goto err;
}
skb_reserve(nskb, 32);
RX_STAT_INC(skb_allocated);
memcpy(nskb->data, &(skb->data[chk_idx+4]),
hif_dev->rx_transfer_len);
/* Record the buffer pointer */
hif_dev->remain_skb = nskb;
} else {
nskb = __dev_alloc_skb(pkt_len + 32, GFP_ATOMIC);
if (!nskb) {
dev_err(&hif_dev->udev->dev,
"ath9k_htc: RX memory allocation"
" error\n");
goto err;
}
skb_reserve(nskb, 32);
RX_STAT_INC(skb_allocated);
memcpy(nskb->data, &(skb->data[chk_idx+4]), pkt_len);
skb_put(nskb, pkt_len);
skb_pool[pool_index++] = nskb;
}
} else {
RX_STAT_INC(skb_dropped);
dev_kfree_skb_any(skb);
return;
}
}
err:
dev_kfree_skb_any(skb);
for (i = 0; i < pool_index; i++) {
ath9k_htc_rx_msg(hif_dev->htc_handle, skb_pool[i],
skb_pool[i]->len, USB_WLAN_RX_PIPE);
RX_STAT_INC(skb_completed);
}
}
static void ath9k_hif_usb_rx_cb(struct urb *urb)
{
struct sk_buff *skb = (struct sk_buff *) urb->context;
struct sk_buff *nskb;
struct hif_device_usb *hif_dev = (struct hif_device_usb *)
usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
int ret;
if (!hif_dev)
goto free;
switch (urb->status) {
case 0:
break;
case -ENOENT:
case -ECONNRESET:
case -ENODEV:
case -ESHUTDOWN:
goto free;
default:
goto resubmit;
}
if (likely(urb->actual_length != 0)) {
skb_put(skb, urb->actual_length);
nskb = __dev_alloc_skb(MAX_RX_BUF_SIZE, GFP_ATOMIC);
if (!nskb)
goto resubmit;
usb_fill_bulk_urb(urb, hif_dev->udev,
usb_rcvbulkpipe(hif_dev->udev,
USB_WLAN_RX_PIPE),
nskb->data, MAX_RX_BUF_SIZE,
ath9k_hif_usb_rx_cb, nskb);
ret = usb_submit_urb(urb, GFP_ATOMIC);
if (ret) {
dev_kfree_skb_any(nskb);
goto free;
}
ath9k_hif_usb_rx_stream(hif_dev, skb);
return;
}
resubmit:
skb_reset_tail_pointer(skb);
skb_trim(skb, 0);
ret = usb_submit_urb(urb, GFP_ATOMIC);
if (ret)
goto free;
return;
free:
dev_kfree_skb_any(skb);
}
static void ath9k_hif_usb_reg_in_cb(struct urb *urb)
{
struct sk_buff *skb = (struct sk_buff *) urb->context;
struct sk_buff *nskb;
struct hif_device_usb *hif_dev = (struct hif_device_usb *)
usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
int ret;
if (!hif_dev)
goto free;
switch (urb->status) {
case 0:
break;
case -ENOENT:
case -ECONNRESET:
case -ENODEV:
case -ESHUTDOWN:
goto free;
default:
goto resubmit;
}
if (likely(urb->actual_length != 0)) {
skb_put(skb, urb->actual_length);
nskb = __dev_alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_ATOMIC);
if (!nskb)
goto resubmit;
usb_fill_int_urb(urb, hif_dev->udev,
usb_rcvintpipe(hif_dev->udev, USB_REG_IN_PIPE),
nskb->data, MAX_REG_IN_BUF_SIZE,
ath9k_hif_usb_reg_in_cb, nskb, 1);
ret = usb_submit_urb(urb, GFP_ATOMIC);
if (ret) {
dev_kfree_skb_any(nskb);
goto free;
}
ath9k_htc_rx_msg(hif_dev->htc_handle, skb,
skb->len, USB_REG_IN_PIPE);
return;
}
resubmit:
skb_reset_tail_pointer(skb);
skb_trim(skb, 0);
ret = usb_submit_urb(urb, GFP_ATOMIC);
if (ret)
goto free;
return;
free:
dev_kfree_skb_any(skb);
}
static void ath9k_hif_usb_dealloc_tx_urbs(struct hif_device_usb *hif_dev)
{
unsigned long flags;
struct tx_buf *tx_buf = NULL, *tx_buf_tmp = NULL;
list_for_each_entry_safe(tx_buf, tx_buf_tmp, &hif_dev->tx.tx_buf, list) {
list_del(&tx_buf->list);
usb_free_urb(tx_buf->urb);
kfree(tx_buf->buf);
kfree(tx_buf);
}
spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
hif_dev->tx.flags |= HIF_USB_TX_FLUSH;
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
list_for_each_entry_safe(tx_buf, tx_buf_tmp,
&hif_dev->tx.tx_pending, list) {
usb_kill_urb(tx_buf->urb);
list_del(&tx_buf->list);
usb_free_urb(tx_buf->urb);
kfree(tx_buf->buf);
kfree(tx_buf);
}
spin_lock_irqsave(&hif_dev->tx.tx_lock, flags);
hif_dev->tx.flags &= ~HIF_USB_TX_FLUSH;
spin_unlock_irqrestore(&hif_dev->tx.tx_lock, flags);
}
static int ath9k_hif_usb_alloc_tx_urbs(struct hif_device_usb *hif_dev)
{
struct tx_buf *tx_buf;
int i;
INIT_LIST_HEAD(&hif_dev->tx.tx_buf);
INIT_LIST_HEAD(&hif_dev->tx.tx_pending);
spin_lock_init(&hif_dev->tx.tx_lock);
__skb_queue_head_init(&hif_dev->tx.tx_skb_queue);
for (i = 0; i < MAX_TX_URB_NUM; i++) {
tx_buf = kzalloc(sizeof(struct tx_buf), GFP_KERNEL);
if (!tx_buf)
goto err;
tx_buf->buf = kzalloc(MAX_TX_BUF_SIZE, GFP_KERNEL);
if (!tx_buf->buf)
goto err;
tx_buf->urb = usb_alloc_urb(0, GFP_KERNEL);
if (!tx_buf->urb)
goto err;
tx_buf->hif_dev = hif_dev;
__skb_queue_head_init(&tx_buf->skb_queue);
list_add_tail(&tx_buf->list, &hif_dev->tx.tx_buf);
}
hif_dev->tx.tx_buf_cnt = MAX_TX_URB_NUM;
return 0;
err:
ath9k_hif_usb_dealloc_tx_urbs(hif_dev);
return -ENOMEM;
}
static void ath9k_hif_usb_dealloc_rx_skbs(struct hif_device_usb *hif_dev)
{
int i;
for (i = 0; i < MAX_RX_URB_NUM; i++) {
if (hif_dev->wlan_rx_data_urb[i]) {
if (hif_dev->wlan_rx_data_urb[i]->transfer_buffer)
dev_kfree_skb_any((void *)
hif_dev->wlan_rx_data_urb[i]->context);
}
}
}
static void ath9k_hif_usb_dealloc_rx_urbs(struct hif_device_usb *hif_dev)
{
int i;
for (i = 0; i < MAX_RX_URB_NUM; i++) {
if (hif_dev->wlan_rx_data_urb[i]) {
usb_kill_urb(hif_dev->wlan_rx_data_urb[i]);
usb_free_urb(hif_dev->wlan_rx_data_urb[i]);
hif_dev->wlan_rx_data_urb[i] = NULL;
}
}
}
static int ath9k_hif_usb_prep_rx_urb(struct hif_device_usb *hif_dev,
struct urb *urb)
{
struct sk_buff *skb;
skb = __dev_alloc_skb(MAX_RX_BUF_SIZE, GFP_KERNEL);
if (!skb)
return -ENOMEM;
usb_fill_bulk_urb(urb, hif_dev->udev,
usb_rcvbulkpipe(hif_dev->udev, USB_WLAN_RX_PIPE),
skb->data, MAX_RX_BUF_SIZE,
ath9k_hif_usb_rx_cb, skb);
return 0;
}
static int ath9k_hif_usb_alloc_rx_urbs(struct hif_device_usb *hif_dev)
{
int i, ret;
for (i = 0; i < MAX_RX_URB_NUM; i++) {
/* Allocate URB */
hif_dev->wlan_rx_data_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
if (hif_dev->wlan_rx_data_urb[i] == NULL) {
ret = -ENOMEM;
goto err_rx_urb;
}
/* Allocate buffer */
ret = ath9k_hif_usb_prep_rx_urb(hif_dev,
hif_dev->wlan_rx_data_urb[i]);
if (ret)
goto err_rx_urb;
/* Submit URB */
ret = usb_submit_urb(hif_dev->wlan_rx_data_urb[i], GFP_KERNEL);
if (ret)
goto err_rx_urb;
}
return 0;
err_rx_urb:
ath9k_hif_usb_dealloc_rx_skbs(hif_dev);
ath9k_hif_usb_dealloc_rx_urbs(hif_dev);
return ret;
}
static void ath9k_hif_usb_dealloc_reg_in_urb(struct hif_device_usb *hif_dev)
{
if (hif_dev->reg_in_urb) {
usb_kill_urb(hif_dev->reg_in_urb);
usb_free_urb(hif_dev->reg_in_urb);
hif_dev->reg_in_urb = NULL;
}
}
static int ath9k_hif_usb_alloc_reg_in_urb(struct hif_device_usb *hif_dev)
{
struct sk_buff *skb;
hif_dev->reg_in_urb = usb_alloc_urb(0, GFP_KERNEL);
if (hif_dev->reg_in_urb == NULL)
return -ENOMEM;
skb = __dev_alloc_skb(MAX_REG_IN_BUF_SIZE, GFP_KERNEL);
if (!skb)
goto err;
usb_fill_int_urb(hif_dev->reg_in_urb, hif_dev->udev,
usb_rcvintpipe(hif_dev->udev, USB_REG_IN_PIPE),
skb->data, MAX_REG_IN_BUF_SIZE,
ath9k_hif_usb_reg_in_cb, skb, 1);
if (usb_submit_urb(hif_dev->reg_in_urb, GFP_KERNEL) != 0)
goto err_skb;
return 0;
err_skb:
dev_kfree_skb_any(skb);
err:
ath9k_hif_usb_dealloc_reg_in_urb(hif_dev);
return -ENOMEM;
}
static int ath9k_hif_usb_alloc_urbs(struct hif_device_usb *hif_dev)
{
/* TX */
if (ath9k_hif_usb_alloc_tx_urbs(hif_dev) < 0)
goto err;
/* RX */
if (ath9k_hif_usb_alloc_rx_urbs(hif_dev) < 0)
goto err;
/* Register Read/Write */
if (ath9k_hif_usb_alloc_reg_in_urb(hif_dev) < 0)
goto err;
return 0;
err:
return -ENOMEM;
}
static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
{
int transfer, err;
const void *data = hif_dev->firmware->data;
size_t len = hif_dev->firmware->size;
u32 addr = AR9271_FIRMWARE;
u8 *buf = kzalloc(4096, GFP_KERNEL);
if (!buf)
return -ENOMEM;
while (len) {
transfer = min_t(int, len, 4096);
memcpy(buf, data, transfer);
err = usb_control_msg(hif_dev->udev,
usb_sndctrlpipe(hif_dev->udev, 0),
FIRMWARE_DOWNLOAD, 0x40 | USB_DIR_OUT,
addr >> 8, 0, buf, transfer, HZ);
if (err < 0) {
kfree(buf);
return err;
}
len -= transfer;
data += transfer;
addr += transfer;
}
kfree(buf);
/*
* Issue FW download complete command to firmware.
*/
err = usb_control_msg(hif_dev->udev, usb_sndctrlpipe(hif_dev->udev, 0),
FIRMWARE_DOWNLOAD_COMP,
0x40 | USB_DIR_OUT,
AR9271_FIRMWARE_TEXT >> 8, 0, NULL, 0, HZ);
if (err)
return -EIO;
dev_info(&hif_dev->udev->dev, "ath9k_htc: Transferred FW: %s, size: %ld\n",
"ar9271.fw", (unsigned long) hif_dev->firmware->size);
return 0;
}
static int ath9k_hif_usb_dev_init(struct hif_device_usb *hif_dev,
const char *fw_name)
{
int ret;
/* Request firmware */
ret = request_firmware(&hif_dev->firmware, fw_name, &hif_dev->udev->dev);
if (ret) {
dev_err(&hif_dev->udev->dev,
"ath9k_htc: Firmware - %s not found\n", fw_name);
goto err_fw_req;
}
/* Download firmware */
ret = ath9k_hif_usb_download_fw(hif_dev);
if (ret) {
dev_err(&hif_dev->udev->dev,
"ath9k_htc: Firmware - %s download failed\n", fw_name);
goto err_fw_download;
}
/* Alloc URBs */
ret = ath9k_hif_usb_alloc_urbs(hif_dev);
if (ret) {
dev_err(&hif_dev->udev->dev,
"ath9k_htc: Unable to allocate URBs\n");
goto err_urb;
}
return 0;
err_urb:
/* Nothing */
err_fw_download:
release_firmware(hif_dev->firmware);
err_fw_req:
hif_dev->firmware = NULL;
return ret;
}
static void ath9k_hif_usb_dealloc_urbs(struct hif_device_usb *hif_dev)
{
ath9k_hif_usb_dealloc_reg_in_urb(hif_dev);
ath9k_hif_usb_dealloc_tx_urbs(hif_dev);
ath9k_hif_usb_dealloc_rx_urbs(hif_dev);
}
static void ath9k_hif_usb_dev_deinit(struct hif_device_usb *hif_dev)
{
ath9k_hif_usb_dealloc_urbs(hif_dev);
if (hif_dev->firmware)
release_firmware(hif_dev->firmware);
}
static int ath9k_hif_usb_probe(struct usb_interface *interface,
const struct usb_device_id *id)
{
struct usb_device *udev = interface_to_usbdev(interface);
struct hif_device_usb *hif_dev;
const char *fw_name = (const char *) id->driver_info;
int ret = 0;
hif_dev = kzalloc(sizeof(struct hif_device_usb), GFP_KERNEL);
if (!hif_dev) {
ret = -ENOMEM;
goto err_alloc;
}
usb_get_dev(udev);
hif_dev->udev = udev;
hif_dev->interface = interface;
hif_dev->device_id = id->idProduct;
#ifdef CONFIG_PM
udev->reset_resume = 1;
#endif
usb_set_intfdata(interface, hif_dev);
ret = ath9k_hif_usb_dev_init(hif_dev, fw_name);
if (ret) {
ret = -EINVAL;
goto err_hif_init_usb;
}
hif_dev->htc_handle = ath9k_htc_hw_alloc(hif_dev);
if (hif_dev->htc_handle == NULL) {
ret = -ENOMEM;
goto err_htc_hw_alloc;
}
ret = ath9k_htc_hw_init(&hif_usb, hif_dev->htc_handle, hif_dev,
&hif_dev->udev->dev, hif_dev->device_id,
ATH9K_HIF_USB);
if (ret) {
ret = -EINVAL;
goto err_htc_hw_init;
}
dev_info(&hif_dev->udev->dev, "ath9k_htc: USB layer initialized\n");
return 0;
err_htc_hw_init:
ath9k_htc_hw_free(hif_dev->htc_handle);
err_htc_hw_alloc:
ath9k_hif_usb_dev_deinit(hif_dev);
err_hif_init_usb:
usb_set_intfdata(interface, NULL);
kfree(hif_dev);
usb_put_dev(udev);
err_alloc:
return ret;
}
static void ath9k_hif_usb_disconnect(struct usb_interface *interface)
{
struct usb_device *udev = interface_to_usbdev(interface);
struct hif_device_usb *hif_dev =
(struct hif_device_usb *) usb_get_intfdata(interface);
if (hif_dev) {
ath9k_htc_hw_deinit(hif_dev->htc_handle, true);
ath9k_htc_hw_free(hif_dev->htc_handle);
ath9k_hif_usb_dev_deinit(hif_dev);
usb_set_intfdata(interface, NULL);
}
if (hif_dev->flags & HIF_USB_START)
usb_reset_device(udev);
kfree(hif_dev);
dev_info(&udev->dev, "ath9k_htc: USB layer deinitialized\n");
usb_put_dev(udev);
}
#ifdef CONFIG_PM
static int ath9k_hif_usb_suspend(struct usb_interface *interface,
pm_message_t message)
{
struct hif_device_usb *hif_dev =
(struct hif_device_usb *) usb_get_intfdata(interface);
ath9k_hif_usb_dealloc_urbs(hif_dev);
return 0;
}
static int ath9k_hif_usb_resume(struct usb_interface *interface)
{
struct hif_device_usb *hif_dev =
(struct hif_device_usb *) usb_get_intfdata(interface);
int ret;
ret = ath9k_hif_usb_alloc_urbs(hif_dev);
if (ret)
return ret;
if (hif_dev->firmware) {
ret = ath9k_hif_usb_download_fw(hif_dev);
if (ret)
goto fail_resume;
} else {
ath9k_hif_usb_dealloc_urbs(hif_dev);
return -EIO;
}
mdelay(100);
ret = ath9k_htc_resume(hif_dev->htc_handle);
if (ret)
goto fail_resume;
return 0;
fail_resume:
ath9k_hif_usb_dealloc_urbs(hif_dev);
return ret;
}
#endif
static struct usb_driver ath9k_hif_usb_driver = {
.name = "ath9k_hif_usb",
.probe = ath9k_hif_usb_probe,
.disconnect = ath9k_hif_usb_disconnect,
#ifdef CONFIG_PM
.suspend = ath9k_hif_usb_suspend,
.resume = ath9k_hif_usb_resume,
.reset_resume = ath9k_hif_usb_resume,
#endif
.id_table = ath9k_hif_usb_ids,
.soft_unbind = 1,
};
int ath9k_hif_usb_init(void)
{
return usb_register(&ath9k_hif_usb_driver);
}
void ath9k_hif_usb_exit(void)
{
usb_deregister(&ath9k_hif_usb_driver);
}
drivers/net/wireless/ath/ath9k/hif_usb.h 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 HTC_USB_H
#define HTC_USB_H
#define AR9271_FIRMWARE 0x501000
#define AR9271_FIRMWARE_TEXT 0x903000
#define FIRMWARE_DOWNLOAD 0x30
#define FIRMWARE_DOWNLOAD_COMP 0x31
#define ATH_USB_RX_STREAM_MODE_TAG 0x4e00
#define ATH_USB_TX_STREAM_MODE_TAG 0x697e
/* FIXME: Verify these numbers (with Windows) */
#define MAX_TX_URB_NUM 8
#define MAX_TX_BUF_NUM 1024
#define MAX_TX_BUF_SIZE 32768
#define MAX_TX_AGGR_NUM 20
#define MAX_RX_URB_NUM 8
#define MAX_RX_BUF_SIZE 16384
#define MAX_REG_OUT_URB_NUM 1
#define MAX_REG_OUT_BUF_NUM 8
#define MAX_REG_IN_BUF_SIZE 64
/* USB Endpoint definition */
#define USB_WLAN_TX_PIPE 1
#define USB_WLAN_RX_PIPE 2
#define USB_REG_IN_PIPE 3
#define USB_REG_OUT_PIPE 4
#define HIF_USB_MAX_RXPIPES 2
#define HIF_USB_MAX_TXPIPES 4
struct tx_buf {
u8 *buf;
u16 len;
u16 offset;
struct urb *urb;
struct sk_buff_head skb_queue;
struct hif_device_usb *hif_dev;
struct list_head list;
};
#define HIF_USB_TX_STOP BIT(0)
#define HIF_USB_TX_FLUSH BIT(1)
struct hif_usb_tx {
u8 flags;
u8 tx_buf_cnt;
u16 tx_skb_cnt;
struct sk_buff_head tx_skb_queue;
struct list_head tx_buf;
struct list_head tx_pending;
spinlock_t tx_lock;
};
struct cmd_buf {
struct sk_buff *skb;
struct hif_device_usb *hif_dev;
};
#define HIF_USB_START BIT(0)
struct hif_device_usb {
u16 device_id;
struct usb_device *udev;
struct usb_interface *interface;
const struct firmware *firmware;
struct htc_target *htc_handle;
u8 flags;
struct hif_usb_tx tx;
struct urb *wlan_rx_data_urb[MAX_RX_URB_NUM];
struct urb *reg_in_urb;
struct sk_buff *remain_skb;
int rx_remain_len;
int rx_pkt_len;
int rx_transfer_len;
int rx_pad_len;
};
int ath9k_hif_usb_init(void);
void ath9k_hif_usb_exit(void);
#endif /* HTC_USB_H */
drivers/net/wireless/ath/ath9k/htc.h 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 HTC_H
#define HTC_H
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/firmware.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/leds.h>
#include <net/mac80211.h>
#include "common.h"
#include "htc_hst.h"
#include "hif_usb.h"
#include "wmi.h"
#define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */
#define ATH_ANI_POLLINTERVAL 100 /* 100 ms */
#define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */
#define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */
#define ATH_DEFAULT_BMISS_LIMIT 10
#define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024)
#define TSF_TO_TU(_h, _l) \
((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))
extern struct ieee80211_ops ath9k_htc_ops;
extern int modparam_nohwcrypt;
enum htc_phymode {
HTC_MODE_AUTO = 0,
HTC_MODE_11A = 1,
HTC_MODE_11B = 2,
HTC_MODE_11G = 3,
HTC_MODE_FH = 4,
HTC_MODE_TURBO_A = 5,
HTC_MODE_TURBO_G = 6,
HTC_MODE_11NA = 7,
HTC_MODE_11NG = 8
};
enum htc_opmode {
HTC_M_STA = 1,
HTC_M_IBSS = 0,
HTC_M_AHDEMO = 3,
HTC_M_HOSTAP = 6,
HTC_M_MONITOR = 8,
HTC_M_WDS = 2
};
#define ATH9K_HTC_HDRSPACE sizeof(struct htc_frame_hdr)
#define ATH9K_HTC_AMPDU 1
#define ATH9K_HTC_NORMAL 2
#define ATH9K_HTC_TX_CTSONLY 0x1
#define ATH9K_HTC_TX_RTSCTS 0x2
#define ATH9K_HTC_TX_USE_MIN_RATE 0x100
struct tx_frame_hdr {
u8 data_type;
u8 node_idx;
u8 vif_idx;
u8 tidno;
u32 flags; /* ATH9K_HTC_TX_* */
u8 key_type;
u8 keyix;
u8 reserved[26];
} __packed;
struct tx_mgmt_hdr {
u8 node_idx;
u8 vif_idx;
u8 tidno;
u8 flags;
u8 key_type;
u8 keyix;
u16 reserved;
} __packed;
struct tx_beacon_header {
u8 len_changed;
u8 vif_index;
u16 rev;
} __packed;
struct ath9k_htc_target_hw {
u32 flags;
u32 flags_ext;
u32 ampdu_limit;
u8 ampdu_subframes;
u8 tx_chainmask;
u8 tx_chainmask_legacy;
u8 rtscts_ratecode;
u8 protmode;
} __packed;
struct ath9k_htc_cap_target {
u32 flags;
u32 flags_ext;
u32 ampdu_limit;
u8 ampdu_subframes;
u8 tx_chainmask;
u8 tx_chainmask_legacy;
u8 rtscts_ratecode;
u8 protmode;
} __packed;
struct ath9k_htc_target_vif {
u8 index;
u8 des_bssid[ETH_ALEN];
enum htc_opmode opmode;
u8 myaddr[ETH_ALEN];
u8 bssid[ETH_ALEN];
u32 flags;
u32 flags_ext;
u16 ps_sta;
u16 rtsthreshold;
u8 ath_cap;
u8 node;
s8 mcast_rate;
} __packed;
#define ATH_HTC_STA_AUTH 0x0001
#define ATH_HTC_STA_QOS 0x0002
#define ATH_HTC_STA_ERP 0x0004
#define ATH_HTC_STA_HT 0x0008
/* FIXME: UAPSD variables */
struct ath9k_htc_target_sta {
u16 associd;
u16 txpower;
u32 ucastkey;
u8 macaddr[ETH_ALEN];
u8 bssid[ETH_ALEN];
u8 sta_index;
u8 vif_index;
u8 vif_sta;
u16 flags; /* ATH_HTC_STA_* */
u16 htcap;
u8 valid;
u16 capinfo;
struct ath9k_htc_target_hw *hw;
struct ath9k_htc_target_vif *vif;
u16 txseqmgmt;
u8 is_vif_sta;
u16 maxampdu;
u16 iv16;
u32 iv32;
} __packed;
struct ath9k_htc_target_aggr {
u8 sta_index;
u8 tidno;
u8 aggr_enable;
u8 padding;
} __packed;
#define ATH_HTC_RATE_MAX 30
#define WLAN_RC_DS_FLAG 0x01
#define WLAN_RC_40_FLAG 0x02
#define WLAN_RC_SGI_FLAG 0x04
#define WLAN_RC_HT_FLAG 0x08
struct ath9k_htc_rateset {
u8 rs_nrates;
u8 rs_rates[ATH_HTC_RATE_MAX];
};
struct ath9k_htc_rate {
struct ath9k_htc_rateset legacy_rates;
struct ath9k_htc_rateset ht_rates;
} __packed;
struct ath9k_htc_target_rate {
u8 sta_index;
u8 isnew;
u32 capflags;
struct ath9k_htc_rate rates;
};
struct ath9k_htc_target_stats {
u32 tx_shortretry;
u32 tx_longretry;
u32 tx_xretries;
u32 ht_txunaggr_xretry;
u32 ht_tx_xretries;
} __packed;
struct ath9k_htc_vif {
u8 index;
};
#define ATH9K_HTC_MAX_STA 8
#define ATH9K_HTC_MAX_TID 8
enum tid_aggr_state {
AGGR_STOP = 0,
AGGR_PROGRESS,
AGGR_START,
AGGR_OPERATIONAL
};
struct ath9k_htc_sta {
u8 index;
enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];
};
struct ath9k_htc_aggr_work {
u16 tid;
u8 sta_addr[ETH_ALEN];
struct ieee80211_hw *hw;
struct ieee80211_vif *vif;
enum ieee80211_ampdu_mlme_action action;
struct mutex mutex;
};
#define ATH9K_HTC_RXBUF 256
#define HTC_RX_FRAME_HEADER_SIZE 40
struct ath9k_htc_rxbuf {
bool in_process;
struct sk_buff *skb;
struct ath_htc_rx_status rxstatus;
struct list_head list;
};
struct ath9k_htc_rx {
int last_rssi; /* FIXME: per-STA */
struct list_head rxbuf;
spinlock_t rxbuflock;
};
struct ath9k_htc_tx_ctl {
u8 type; /* ATH9K_HTC_* */
};
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
#define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)
#define RX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.rx_stats.c++)
struct ath_tx_stats {
u32 buf_queued;
u32 buf_completed;
u32 skb_queued;
u32 skb_completed;
};
struct ath_rx_stats {
u32 skb_allocated;
u32 skb_completed;
u32 skb_dropped;
};
struct ath9k_debug {
struct dentry *debugfs_phy;
struct dentry *debugfs_tgt_stats;
struct dentry *debugfs_xmit;
struct dentry *debugfs_recv;
struct ath_tx_stats tx_stats;
struct ath_rx_stats rx_stats;
u32 txrate;
};
#else
#define TX_STAT_INC(c) do { } while (0)
#define RX_STAT_INC(c) do { } while (0)
#endif /* CONFIG_ATH9K_HTC_DEBUGFS */
#define ATH_LED_PIN_DEF 1
#define ATH_LED_PIN_9287 8
#define ATH_LED_PIN_9271 15
#define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */
#define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */
enum ath_led_type {
ATH_LED_RADIO,
ATH_LED_ASSOC,
ATH_LED_TX,
ATH_LED_RX
};
struct ath_led {
struct ath9k_htc_priv *priv;
struct led_classdev led_cdev;
enum ath_led_type led_type;
struct delayed_work brightness_work;
char name[32];
bool registered;
int brightness;
};
#define OP_INVALID BIT(0)
#define OP_SCANNING BIT(1)
#define OP_FULL_RESET BIT(2)
#define OP_LED_ASSOCIATED BIT(3)
#define OP_LED_ON BIT(4)
#define OP_PREAMBLE_SHORT BIT(5)
#define OP_PROTECT_ENABLE BIT(6)
#define OP_TXAGGR BIT(7)
#define OP_ASSOCIATED BIT(8)
#define OP_ENABLE_BEACON BIT(9)
#define OP_LED_DEINIT BIT(10)
struct ath9k_htc_priv {
struct device *dev;
struct ieee80211_hw *hw;
struct ath_hw *ah;
struct htc_target *htc;
struct wmi *wmi;
enum htc_endpoint_id wmi_cmd_ep;
enum htc_endpoint_id beacon_ep;
enum htc_endpoint_id cab_ep;
enum htc_endpoint_id uapsd_ep;
enum htc_endpoint_id mgmt_ep;
enum htc_endpoint_id data_be_ep;
enum htc_endpoint_id data_bk_ep;
enum htc_endpoint_id data_vi_ep;
enum htc_endpoint_id data_vo_ep;
u16 op_flags;
u16 curtxpow;
u16 txpowlimit;
u16 nvifs;
u16 nstations;
u16 seq_no;
u32 bmiss_cnt;
struct sk_buff *beacon;
spinlock_t beacon_lock;
struct ieee80211_vif *vif;
unsigned int rxfilter;
struct tasklet_struct wmi_tasklet;
struct tasklet_struct rx_tasklet;
struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
struct ath9k_htc_rx rx;
struct tasklet_struct tx_tasklet;
struct sk_buff_head tx_queue;
struct ath9k_htc_aggr_work aggr_work;
struct delayed_work ath9k_aggr_work;
struct delayed_work ath9k_ani_work;
struct ath_led radio_led;
struct ath_led assoc_led;
struct ath_led tx_led;
struct ath_led rx_led;
struct delayed_work ath9k_led_blink_work;
int led_on_duration;
int led_off_duration;
int led_on_cnt;
int led_off_cnt;
int hwq_map[ATH9K_WME_AC_VO+1];
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
struct ath9k_debug debug;
#endif
struct ath9k_htc_target_rate tgt_rate;
struct mutex mutex;
};
static inline void ath_read_cachesize(struct ath_common *common, int *csz)
{
common->bus_ops->read_cachesize(common, csz);
}
void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf);
void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending);
void ath9k_htc_beacon_update(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif);
void ath9k_htc_rxep(void *priv, struct sk_buff *skb,
enum htc_endpoint_id ep_id);
void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,
bool txok);
void ath9k_htc_station_work(struct work_struct *work);
void ath9k_htc_aggr_work(struct work_struct *work);
void ath9k_ani_work(struct work_struct *work);;
int ath9k_tx_init(struct ath9k_htc_priv *priv);
void ath9k_tx_tasklet(unsigned long data);
int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb);
void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);
bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv,
enum ath9k_tx_queue_subtype qtype);
int get_hw_qnum(u16 queue, int *hwq_map);
int ath_txq_update(struct ath9k_htc_priv *priv, int qnum,
struct ath9k_tx_queue_info *qinfo);
int ath9k_rx_init(struct ath9k_htc_priv *priv);
void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);
void ath9k_host_rx_init(struct ath9k_htc_priv *priv);
void ath9k_rx_tasklet(unsigned long data);
void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);
void ath9k_init_leds(struct ath9k_htc_priv *priv);
void ath9k_deinit_leds(struct ath9k_htc_priv *priv);
int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
u16 devid);
void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);
#ifdef CONFIG_PM
int ath9k_htc_resume(struct htc_target *htc_handle);
#endif
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
int ath9k_debug_create_root(void);
void ath9k_debug_remove_root(void);
int ath9k_init_debug(struct ath_hw *ah);
void ath9k_exit_debug(struct ath_hw *ah);
#else
static inline int ath9k_debug_create_root(void) { return 0; };
static inline void ath9k_debug_remove_root(void) {};
static inline int ath9k_init_debug(struct ath_hw *ah) { return 0; };
static inline void ath9k_exit_debug(struct ath_hw *ah) {};
#endif /* CONFIG_ATH9K_HTC_DEBUGFS */
#endif /* HTC_H */
drivers/net/wireless/ath/ath9k/htc_drv_beacon.c 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 "htc.h"
#define FUDGE 2
static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
struct ieee80211_bss_conf *bss_conf)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_beacon_state bs;
enum ath9k_int imask = 0;
int dtimperiod, dtimcount, sleepduration;
int cfpperiod, cfpcount, bmiss_timeout;
u32 nexttbtt = 0, intval, tsftu, htc_imask = 0;
u64 tsf;
int num_beacons, offset, dtim_dec_count, cfp_dec_count;
int ret;
u8 cmd_rsp;
memset(&bs, 0, sizeof(bs));
intval = bss_conf->beacon_int & ATH9K_BEACON_PERIOD;
bmiss_timeout = (ATH_DEFAULT_BMISS_LIMIT * bss_conf->beacon_int);
/*
* Setup dtim and cfp parameters according to
* last beacon we received (which may be none).
*/
dtimperiod = bss_conf->dtim_period;
if (dtimperiod <= 0) /* NB: 0 if not known */
dtimperiod = 1;
dtimcount = 1;
if (dtimcount >= dtimperiod) /* NB: sanity check */
dtimcount = 0;
cfpperiod = 1; /* NB: no PCF support yet */
cfpcount = 0;
sleepduration = intval;
if (sleepduration <= 0)
sleepduration = intval;
/*
* Pull nexttbtt forward to reflect the current
* TSF and calculate dtim+cfp state for the result.
*/
tsf = ath9k_hw_gettsf64(priv->ah);
tsftu = TSF_TO_TU(tsf>>32, tsf) + FUDGE;
num_beacons = tsftu / intval + 1;
offset = tsftu % intval;
nexttbtt = tsftu - offset;
if (offset)
nexttbtt += intval;
/* DTIM Beacon every dtimperiod Beacon */
dtim_dec_count = num_beacons % dtimperiod;
/* CFP every cfpperiod DTIM Beacon */
cfp_dec_count = (num_beacons / dtimperiod) % cfpperiod;
if (dtim_dec_count)
cfp_dec_count++;
dtimcount -= dtim_dec_count;
if (dtimcount < 0)
dtimcount += dtimperiod;
cfpcount -= cfp_dec_count;
if (cfpcount < 0)
cfpcount += cfpperiod;
bs.bs_intval = intval;
bs.bs_nexttbtt = nexttbtt;
bs.bs_dtimperiod = dtimperiod*intval;
bs.bs_nextdtim = bs.bs_nexttbtt + dtimcount*intval;
bs.bs_cfpperiod = cfpperiod*bs.bs_dtimperiod;
bs.bs_cfpnext = bs.bs_nextdtim + cfpcount*bs.bs_dtimperiod;
bs.bs_cfpmaxduration = 0;
/*
* Calculate the number of consecutive beacons to miss* before taking
* a BMISS interrupt. The configuration is specified in TU so we only
* need calculate based on the beacon interval. Note that we clamp the
* result to at most 15 beacons.
*/
if (sleepduration > intval) {
bs.bs_bmissthreshold = ATH_DEFAULT_BMISS_LIMIT / 2;
} else {
bs.bs_bmissthreshold = DIV_ROUND_UP(bmiss_timeout, intval);
if (bs.bs_bmissthreshold > 15)
bs.bs_bmissthreshold = 15;
else if (bs.bs_bmissthreshold <= 0)
bs.bs_bmissthreshold = 1;
}
/*
* Calculate sleep duration. The configuration is given in ms.
* We ensure a multiple of the beacon period is used. Also, if the sleep
* duration is greater than the DTIM period then it makes senses
* to make it a multiple of that.
*
* XXX fixed at 100ms
*/
bs.bs_sleepduration = roundup(IEEE80211_MS_TO_TU(100), sleepduration);
if (bs.bs_sleepduration > bs.bs_dtimperiod)
bs.bs_sleepduration = bs.bs_dtimperiod;
/* TSF out of range threshold fixed at 1 second */
bs.bs_tsfoor_threshold = ATH9K_TSFOOR_THRESHOLD;
ath_print(common, ATH_DBG_BEACON, "tsf: %llu tsftu: %u\n", tsf, tsftu);
ath_print(common, ATH_DBG_BEACON,
"bmiss: %u sleep: %u cfp-period: %u maxdur: %u next: %u\n",
bs.bs_bmissthreshold, bs.bs_sleepduration,
bs.bs_cfpperiod, bs.bs_cfpmaxduration, bs.bs_cfpnext);
/* Set the computed STA beacon timers */
WMI_CMD(WMI_DISABLE_INTR_CMDID);
ath9k_hw_set_sta_beacon_timers(priv->ah, &bs);
imask |= ATH9K_INT_BMISS;
htc_imask = cpu_to_be32(imask);
WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
}
static void ath9k_htc_beacon_config_adhoc(struct ath9k_htc_priv *priv,
struct ieee80211_bss_conf *bss_conf)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
enum ath9k_int imask = 0;
u32 nexttbtt, intval, htc_imask = 0;
int ret;
u8 cmd_rsp;
intval = bss_conf->beacon_int & ATH9K_BEACON_PERIOD;
nexttbtt = intval;
intval |= ATH9K_BEACON_ENA;
if (priv->op_flags & OP_ENABLE_BEACON)
imask |= ATH9K_INT_SWBA;
ath_print(common, ATH_DBG_BEACON,
"IBSS Beacon config, intval: %d, imask: 0x%x\n",
bss_conf->beacon_int, imask);
WMI_CMD(WMI_DISABLE_INTR_CMDID);
ath9k_hw_beaconinit(priv->ah, nexttbtt, intval);
priv->bmiss_cnt = 0;
htc_imask = cpu_to_be32(imask);
WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
}
void ath9k_htc_beacon_update(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
spin_lock_bh(&priv->beacon_lock);
if (priv->beacon)
dev_kfree_skb_any(priv->beacon);
priv->beacon = ieee80211_beacon_get(priv->hw, vif);
if (!priv->beacon)
ath_print(common, ATH_DBG_BEACON,
"Unable to allocate beacon\n");
spin_unlock_bh(&priv->beacon_lock);
}
void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending)
{
struct ath9k_htc_vif *avp = (void *)priv->vif->drv_priv;
struct tx_beacon_header beacon_hdr;
struct ath9k_htc_tx_ctl tx_ctl;
struct ieee80211_tx_info *info;
u8 *tx_fhdr;
memset(&beacon_hdr, 0, sizeof(struct tx_beacon_header));
memset(&tx_ctl, 0, sizeof(struct ath9k_htc_tx_ctl));
/* FIXME: Handle BMISS */
if (beacon_pending != 0) {
priv->bmiss_cnt++;
return;
}
spin_lock_bh(&priv->beacon_lock);
if (unlikely(priv->op_flags & OP_SCANNING)) {
spin_unlock_bh(&priv->beacon_lock);
return;
}
if (unlikely(priv->beacon == NULL)) {
spin_unlock_bh(&priv->beacon_lock);
return;
}
/* Free the old SKB first */
dev_kfree_skb_any(priv->beacon);
/* Get a new beacon */
priv->beacon = ieee80211_beacon_get(priv->hw, priv->vif);
if (!priv->beacon) {
spin_unlock_bh(&priv->beacon_lock);
return;
}
info = IEEE80211_SKB_CB(priv->beacon);
if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
struct ieee80211_hdr *hdr =
(struct ieee80211_hdr *) priv->beacon->data;
priv->seq_no += 0x10;
hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
hdr->seq_ctrl |= cpu_to_le16(priv->seq_no);
}
tx_ctl.type = ATH9K_HTC_NORMAL;
beacon_hdr.vif_index = avp->index;
tx_fhdr = skb_push(priv->beacon, sizeof(beacon_hdr));
memcpy(tx_fhdr, (u8 *) &beacon_hdr, sizeof(beacon_hdr));
htc_send(priv->htc, priv->beacon, priv->beacon_ep, &tx_ctl);
spin_unlock_bh(&priv->beacon_lock);
}
void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
switch (vif->type) {
case NL80211_IFTYPE_STATION:
ath9k_htc_beacon_config_sta(priv, bss_conf);
break;
case NL80211_IFTYPE_ADHOC:
ath9k_htc_beacon_config_adhoc(priv, bss_conf);
break;
default:
ath_print(common, ATH_DBG_CONFIG,
"Unsupported beaconing mode\n");
return;
}
}
drivers/net/wireless/ath/ath9k/htc_drv_init.c 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 "htc.h"
MODULE_AUTHOR("Atheros Communications");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices");
static unsigned int ath9k_debug = ATH_DBG_DEFAULT;
module_param_named(debug, ath9k_debug, uint, 0);
MODULE_PARM_DESC(debug, "Debugging mask");
int modparam_nohwcrypt;
module_param_named(nohwcrypt, modparam_nohwcrypt, int, 0444);
MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");
#define CHAN2G(_freq, _idx) { \
.center_freq = (_freq), \
.hw_value = (_idx), \
.max_power = 20, \
}
static struct ieee80211_channel ath9k_2ghz_channels[] = {
CHAN2G(2412, 0), /* Channel 1 */
CHAN2G(2417, 1), /* Channel 2 */
CHAN2G(2422, 2), /* Channel 3 */
CHAN2G(2427, 3), /* Channel 4 */
CHAN2G(2432, 4), /* Channel 5 */
CHAN2G(2437, 5), /* Channel 6 */
CHAN2G(2442, 6), /* Channel 7 */
CHAN2G(2447, 7), /* Channel 8 */
CHAN2G(2452, 8), /* Channel 9 */
CHAN2G(2457, 9), /* Channel 10 */
CHAN2G(2462, 10), /* Channel 11 */
CHAN2G(2467, 11), /* Channel 12 */
CHAN2G(2472, 12), /* Channel 13 */
CHAN2G(2484, 13), /* Channel 14 */
};
/* Atheros hardware rate code addition for short premble */
#define SHPCHECK(__hw_rate, __flags) \
((__flags & IEEE80211_RATE_SHORT_PREAMBLE) ? (__hw_rate | 0x04) : 0)
#define RATE(_bitrate, _hw_rate, _flags) { \
.bitrate = (_bitrate), \
.flags = (_flags), \
.hw_value = (_hw_rate), \
.hw_value_short = (SHPCHECK(_hw_rate, _flags)) \
}
static struct ieee80211_rate ath9k_legacy_rates[] = {
RATE(10, 0x1b, 0),
RATE(20, 0x1a, IEEE80211_RATE_SHORT_PREAMBLE), /* shortp : 0x1e */
RATE(55, 0x19, IEEE80211_RATE_SHORT_PREAMBLE), /* shortp: 0x1d */
RATE(110, 0x18, IEEE80211_RATE_SHORT_PREAMBLE), /* short: 0x1c */
RATE(60, 0x0b, 0),
RATE(90, 0x0f, 0),
RATE(120, 0x0a, 0),
RATE(180, 0x0e, 0),
RATE(240, 0x09, 0),
RATE(360, 0x0d, 0),
RATE(480, 0x08, 0),
RATE(540, 0x0c, 0),
};
static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)
{
int time_left;
/* Firmware can take up to 50ms to get ready, to be safe use 1 second */
time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);
if (!time_left) {
dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");
return -ETIMEDOUT;
}
return 0;
}
static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)
{
ath9k_exit_debug(priv->ah);
ath9k_hw_deinit(priv->ah);
tasklet_kill(&priv->wmi_tasklet);
tasklet_kill(&priv->rx_tasklet);
tasklet_kill(&priv->tx_tasklet);
kfree(priv->ah);
priv->ah = NULL;
}
static void ath9k_deinit_device(struct ath9k_htc_priv *priv)
{
struct ieee80211_hw *hw = priv->hw;
wiphy_rfkill_stop_polling(hw->wiphy);
ath9k_deinit_leds(priv);
ieee80211_unregister_hw(hw);
ath9k_rx_cleanup(priv);
ath9k_tx_cleanup(priv);
ath9k_deinit_priv(priv);
}
static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,
u16 service_id,
void (*tx) (void *,
struct sk_buff *,
enum htc_endpoint_id,
bool txok),
enum htc_endpoint_id *ep_id)
{
struct htc_service_connreq req;
memset(&req, 0, sizeof(struct htc_service_connreq));
req.service_id = service_id;
req.ep_callbacks.priv = priv;
req.ep_callbacks.rx = ath9k_htc_rxep;
req.ep_callbacks.tx = tx;
return htc_connect_service(priv->htc, &req, ep_id);
}
static int ath9k_init_htc_services(struct ath9k_htc_priv *priv)
{
int ret;
/* WMI CMD*/
ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);
if (ret)
goto err;
/* Beacon */
ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, NULL,
&priv->beacon_ep);
if (ret)
goto err;
/* CAB */
ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,
&priv->cab_ep);
if (ret)
goto err;
/* UAPSD */
ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,
&priv->uapsd_ep);
if (ret)
goto err;
/* MGMT */
ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,
&priv->mgmt_ep);
if (ret)
goto err;
/* DATA BE */
ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,
&priv->data_be_ep);
if (ret)
goto err;
/* DATA BK */
ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,
&priv->data_bk_ep);
if (ret)
goto err;
/* DATA VI */
ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,
&priv->data_vi_ep);
if (ret)
goto err;
/* DATA VO */
ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,
&priv->data_vo_ep);
if (ret)
goto err;
ret = htc_init(priv->htc);
if (ret)
goto err;
return 0;
err:
dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");
return ret;
}
static int ath9k_reg_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct ath9k_htc_priv *priv = hw->priv;
return ath_reg_notifier_apply(wiphy, request,
ath9k_hw_regulatory(priv->ah));
}
static unsigned int ath9k_ioread32(void *hw_priv, u32 reg_offset)
{
struct ath_hw *ah = (struct ath_hw *) hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
__be32 val, reg = cpu_to_be32(reg_offset);
int r;
r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,
(u8 *) &reg, sizeof(reg),
(u8 *) &val, sizeof(val),
100);
if (unlikely(r)) {
ath_print(common, ATH_DBG_WMI,
"REGISTER READ FAILED: (0x%04x, %d)\n",
reg_offset, r);
return -EIO;
}
return be32_to_cpu(val);
}
static void ath9k_iowrite32(void *hw_priv, u32 val, u32 reg_offset)
{
struct ath_hw *ah = (struct ath_hw *) hw_priv;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
__be32 buf[2] = {
cpu_to_be32(reg_offset),
cpu_to_be32(val),
};
int r;
r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,
(u8 *) &buf, sizeof(buf),
(u8 *) &val, sizeof(val),
100);
if (unlikely(r)) {
ath_print(common, ATH_DBG_WMI,
"REGISTER WRITE FAILED:(0x%04x, %d)\n",
reg_offset, r);
}
}
static const struct ath_ops ath9k_common_ops = {
.read = ath9k_ioread32,
.write = ath9k_iowrite32,
};
static void ath_usb_read_cachesize(struct ath_common *common, int *csz)
{
*csz = L1_CACHE_BYTES >> 2;
}
static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
{
struct ath_hw *ah = (struct ath_hw *) common->ah;
(void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
if (!ath9k_hw_wait(ah,
AR_EEPROM_STATUS_DATA,
AR_EEPROM_STATUS_DATA_BUSY |
AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,
AH_WAIT_TIMEOUT))
return false;
*data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
AR_EEPROM_STATUS_DATA_VAL);
return true;
}
static const struct ath_bus_ops ath9k_usb_bus_ops = {
.read_cachesize = ath_usb_read_cachesize,
.eeprom_read = ath_usb_eeprom_read,
};
static void setup_ht_cap(struct ath9k_htc_priv *priv,
struct ieee80211_sta_ht_cap *ht_info)
{
ht_info->ht_supported = true;
ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
IEEE80211_HT_CAP_SM_PS |
IEEE80211_HT_CAP_SGI_40 |
IEEE80211_HT_CAP_DSSSCCK40;
ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
ht_info->mcs.rx_mask[0] = 0xff;
ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
}
static int ath9k_init_queues(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
int i;
for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)
priv->hwq_map[i] = -1;
if (!ath9k_htc_txq_setup(priv, ATH9K_WME_AC_BE)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for BE traffic\n");
goto err;
}
if (!ath9k_htc_txq_setup(priv, ATH9K_WME_AC_BK)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for BK traffic\n");
goto err;
}
if (!ath9k_htc_txq_setup(priv, ATH9K_WME_AC_VI)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for VI traffic\n");
goto err;
}
if (!ath9k_htc_txq_setup(priv, ATH9K_WME_AC_VO)) {
ath_print(common, ATH_DBG_FATAL,
"Unable to setup xmit queue for VO traffic\n");
goto err;
}
return 0;
err:
return -EINVAL;
}
static void ath9k_init_crypto(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
int i = 0;
/* Get the hardware key cache size. */
common->keymax = priv->ah->caps.keycache_size;
if (common->keymax > ATH_KEYMAX) {
ath_print(common, ATH_DBG_ANY,
"Warning, using only %u entries in %u key cache\n",
ATH_KEYMAX, common->keymax);
common->keymax = ATH_KEYMAX;
}
/*
* Reset the key cache since some parts do not
* reset the contents on initial power up.
*/
for (i = 0; i < common->keymax; i++)
ath9k_hw_keyreset(priv->ah, (u16) i);
if (ath9k_hw_getcapability(priv->ah, ATH9K_CAP_CIPHER,
ATH9K_CIPHER_TKIP, NULL)) {
/*
* Whether we should enable h/w TKIP MIC.
* XXX: if we don't support WME TKIP MIC, then we wouldn't
* report WMM capable, so it's always safe to turn on
* TKIP MIC in this case.
*/
ath9k_hw_setcapability(priv->ah, ATH9K_CAP_TKIP_MIC, 0, 1, NULL);
}
/*
* Check whether the separate key cache entries
* are required to handle both tx+rx MIC keys.
* With split mic keys the number of stations is limited
* to 27 otherwise 59.
*/
if (ath9k_hw_getcapability(priv->ah, ATH9K_CAP_CIPHER,
ATH9K_CIPHER_TKIP, NULL)
&& ath9k_hw_getcapability(priv->ah, ATH9K_CAP_CIPHER,
ATH9K_CIPHER_MIC, NULL)
&& ath9k_hw_getcapability(priv->ah, ATH9K_CAP_TKIP_SPLIT,
0, NULL))
common->splitmic = 1;
/* turn on mcast key search if possible */
if (!ath9k_hw_getcapability(priv->ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL))
(void)ath9k_hw_setcapability(priv->ah, ATH9K_CAP_MCAST_KEYSRCH,
1, 1, NULL);
}
static void ath9k_init_channels_rates(struct ath9k_htc_priv *priv)
{
if (test_bit(ATH9K_MODE_11G, priv->ah->caps.wireless_modes)) {
priv->sbands[IEEE80211_BAND_2GHZ].channels =
ath9k_2ghz_channels;
priv->sbands[IEEE80211_BAND_2GHZ].band = IEEE80211_BAND_2GHZ;
priv->sbands[IEEE80211_BAND_2GHZ].n_channels =
ARRAY_SIZE(ath9k_2ghz_channels);
priv->sbands[IEEE80211_BAND_2GHZ].bitrates = ath9k_legacy_rates;
priv->sbands[IEEE80211_BAND_2GHZ].n_bitrates =
ARRAY_SIZE(ath9k_legacy_rates);
}
}
static void ath9k_init_misc(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
common->tx_chainmask = priv->ah->caps.tx_chainmask;
common->rx_chainmask = priv->ah->caps.rx_chainmask;
if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_BSSIDMASK)
memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN);
priv->op_flags |= OP_TXAGGR;
}
static int ath9k_init_priv(struct ath9k_htc_priv *priv, u16 devid)
{
struct ath_hw *ah = NULL;
struct ath_common *common;
int ret = 0, csz = 0;
priv->op_flags |= OP_INVALID;
ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);
if (!ah)
return -ENOMEM;
ah->hw_version.devid = devid;
ah->hw_version.subsysid = 0; /* FIXME */
priv->ah = ah;
common = ath9k_hw_common(ah);
common->ops = &ath9k_common_ops;
common->bus_ops = &ath9k_usb_bus_ops;
common->ah = ah;
common->hw = priv->hw;
common->priv = priv;
common->debug_mask = ath9k_debug;
spin_lock_init(&priv->wmi->wmi_lock);
spin_lock_init(&priv->beacon_lock);
mutex_init(&priv->mutex);
mutex_init(&priv->aggr_work.mutex);
tasklet_init(&priv->wmi_tasklet, ath9k_wmi_tasklet,
(unsigned long)priv);
tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet,
(unsigned long)priv);
tasklet_init(&priv->tx_tasklet, ath9k_tx_tasklet, (unsigned long)priv);
INIT_DELAYED_WORK(&priv->ath9k_aggr_work, ath9k_htc_aggr_work);
INIT_DELAYED_WORK(&priv->ath9k_ani_work, ath9k_ani_work);
/*
* Cache line size is used to size and align various
* structures used to communicate with the hardware.
*/
ath_read_cachesize(common, &csz);
common->cachelsz = csz << 2; /* convert to bytes */
ret = ath9k_hw_init(ah);
if (ret) {
ath_print(common, ATH_DBG_FATAL,
"Unable to initialize hardware; "
"initialization status: %d\n", ret);
goto err_hw;
}
ret = ath9k_init_debug(ah);
if (ret) {
ath_print(common, ATH_DBG_FATAL,
"Unable to create debugfs files\n");
goto err_debug;
}
ret = ath9k_init_queues(priv);
if (ret)
goto err_queues;
ath9k_init_crypto(priv);
ath9k_init_channels_rates(priv);
ath9k_init_misc(priv);
return 0;
err_queues:
ath9k_exit_debug(ah);
err_debug:
ath9k_hw_deinit(ah);
err_hw:
kfree(ah);
priv->ah = NULL;
return ret;
}
static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,
struct ieee80211_hw *hw)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
hw->flags = IEEE80211_HW_SIGNAL_DBM |
IEEE80211_HW_AMPDU_AGGREGATION |
IEEE80211_HW_SPECTRUM_MGMT |
IEEE80211_HW_HAS_RATE_CONTROL;
hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
hw->queues = 4;
hw->channel_change_time = 5000;
hw->max_listen_interval = 10;
hw->vif_data_size = sizeof(struct ath9k_htc_vif);
hw->sta_data_size = sizeof(struct ath9k_htc_sta);
/* tx_frame_hdr is larger than tx_mgmt_hdr anyway */
hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +
sizeof(struct htc_frame_hdr) + 4;
if (test_bit(ATH9K_MODE_11G, priv->ah->caps.wireless_modes))
hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
&priv->sbands[IEEE80211_BAND_2GHZ];
if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_HT) {
if (test_bit(ATH9K_MODE_11G, priv->ah->caps.wireless_modes))
setup_ht_cap(priv,
&priv->sbands[IEEE80211_BAND_2GHZ].ht_cap);
}
SET_IEEE80211_PERM_ADDR(hw, common->macaddr);
}
static int ath9k_init_device(struct ath9k_htc_priv *priv, u16 devid)
{
struct ieee80211_hw *hw = priv->hw;
struct ath_common *common;
struct ath_hw *ah;
int error = 0;
struct ath_regulatory *reg;
/* Bring up device */
error = ath9k_init_priv(priv, devid);
if (error != 0)
goto err_init;
ah = priv->ah;
common = ath9k_hw_common(ah);
ath9k_set_hw_capab(priv, hw);
/* Initialize regulatory */
error = ath_regd_init(&common->regulatory, priv->hw->wiphy,
ath9k_reg_notifier);
if (error)
goto err_regd;
reg = &common->regulatory;
/* Setup TX */
error = ath9k_tx_init(priv);
if (error != 0)
goto err_tx;
/* Setup RX */
error = ath9k_rx_init(priv);
if (error != 0)
goto err_rx;
/* Register with mac80211 */
error = ieee80211_register_hw(hw);
if (error)
goto err_register;
/* Handle world regulatory */
if (!ath_is_world_regd(reg)) {
error = regulatory_hint(hw->wiphy, reg->alpha2);
if (error)
goto err_world;
}
ath9k_init_leds(priv);
ath9k_start_rfkill_poll(priv);
return 0;
err_world:
ieee80211_unregister_hw(hw);
err_register:
ath9k_rx_cleanup(priv);
err_rx:
ath9k_tx_cleanup(priv);
err_tx:
/* Nothing */
err_regd:
ath9k_deinit_priv(priv);
err_init:
return error;
}
int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,
u16 devid)
{
struct ieee80211_hw *hw;
struct ath9k_htc_priv *priv;
int ret;
hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);
if (!hw)
return -ENOMEM;
priv = hw->priv;
priv->hw = hw;
priv->htc = htc_handle;
priv->dev = dev;
htc_handle->drv_priv = priv;
SET_IEEE80211_DEV(hw, priv->dev);
ret = ath9k_htc_wait_for_target(priv);
if (ret)
goto err_free;
priv->wmi = ath9k_init_wmi(priv);
if (!priv->wmi) {
ret = -EINVAL;
goto err_free;
}
ret = ath9k_init_htc_services(priv);
if (ret)
goto err_init;
ret = ath9k_init_device(priv, devid);
if (ret)
goto err_init;
return 0;
err_init:
ath9k_deinit_wmi(priv);
err_free:
ieee80211_free_hw(hw);
return ret;
}
void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)
{
if (htc_handle->drv_priv) {
ath9k_deinit_device(htc_handle->drv_priv);
ath9k_deinit_wmi(htc_handle->drv_priv);
ieee80211_free_hw(htc_handle->drv_priv->hw);
}
}
#ifdef CONFIG_PM
int ath9k_htc_resume(struct htc_target *htc_handle)
{
int ret;
ret = ath9k_htc_wait_for_target(htc_handle->drv_priv);
if (ret)
return ret;
ret = ath9k_init_htc_services(htc_handle->drv_priv);
return ret;
}
#endif
static int __init ath9k_htc_init(void)
{
int error;
error = ath9k_debug_create_root();
if (error < 0) {
printk(KERN_ERR
"ath9k_htc: Unable to create debugfs root: %d\n",
error);
goto err_dbg;
}
error = ath9k_hif_usb_init();
if (error < 0) {
printk(KERN_ERR
"ath9k_htc: No USB devices found,"
" driver not installed.\n");
error = -ENODEV;
goto err_usb;
}
return 0;
err_usb:
ath9k_debug_remove_root();
err_dbg:
return error;
}
module_init(ath9k_htc_init);
static void __exit ath9k_htc_exit(void)
{
ath9k_hif_usb_exit();
ath9k_debug_remove_root();
printk(KERN_INFO "ath9k_htc: Driver unloaded\n");
}
module_exit(ath9k_htc_exit);
drivers/net/wireless/ath/ath9k/htc_drv_main.c 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 "htc.h"
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
static struct dentry *ath9k_debugfs_root;
#endif
/*************/
/* Utilities */
/*************/
static void ath_update_txpow(struct ath9k_htc_priv *priv)
{
struct ath_hw *ah = priv->ah;
u32 txpow;
if (priv->curtxpow != priv->txpowlimit) {
ath9k_hw_set_txpowerlimit(ah, priv->txpowlimit);
/* read back in case value is clamped */
ath9k_hw_getcapability(ah, ATH9K_CAP_TXPOW, 1, &txpow);
priv->curtxpow = txpow;
}
}
/* HACK Alert: Use 11NG for 2.4, use 11NA for 5 */
static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv,
struct ath9k_channel *ichan)
{
enum htc_phymode mode;
mode = HTC_MODE_AUTO;
switch (ichan->chanmode) {
case CHANNEL_G:
case CHANNEL_G_HT20:
case CHANNEL_G_HT40PLUS:
case CHANNEL_G_HT40MINUS:
mode = HTC_MODE_11NG;
break;
case CHANNEL_A:
case CHANNEL_A_HT20:
case CHANNEL_A_HT40PLUS:
case CHANNEL_A_HT40MINUS:
mode = HTC_MODE_11NA;
break;
default:
break;
}
return mode;
}
static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
struct ieee80211_hw *hw,
struct ath9k_channel *hchan)
{
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_conf *conf = &common->hw->conf;
bool fastcc = true;
struct ieee80211_channel *channel = hw->conf.channel;
enum htc_phymode mode;
u16 htc_mode;
u8 cmd_rsp;
int ret;
if (priv->op_flags & OP_INVALID)
return -EIO;
if (priv->op_flags & OP_FULL_RESET)
fastcc = false;
/* Fiddle around with fastcc later on, for now just use full reset */
fastcc = false;
htc_stop(priv->htc);
WMI_CMD(WMI_DISABLE_INTR_CMDID);
WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
WMI_CMD(WMI_STOP_RECV_CMDID);
ath_print(common, ATH_DBG_CONFIG,
"(%u MHz) -> (%u MHz), HT: %d, HT40: %d\n",
priv->ah->curchan->channel,
channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf));
ret = ath9k_hw_reset(ah, hchan, fastcc);
if (ret) {
ath_print(common, ATH_DBG_FATAL,
"Unable to reset channel (%u Mhz) "
"reset status %d\n", channel->center_freq, ret);
goto err;
}
ath_update_txpow(priv);
WMI_CMD(WMI_START_RECV_CMDID);
if (ret)
goto err;
ath9k_host_rx_init(priv);
mode = ath9k_htc_get_curmode(priv, hchan);
htc_mode = cpu_to_be16(mode);
WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
if (ret)
goto err;
WMI_CMD(WMI_ENABLE_INTR_CMDID);
if (ret)
goto err;
htc_start(priv->htc);
priv->op_flags &= ~OP_FULL_RESET;
err:
return ret;
}
static int ath9k_htc_add_monitor_interface(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_vif hvif;
int ret = 0;
u8 cmd_rsp;
if (priv->nvifs > 0)
return -ENOBUFS;
memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
hvif.opmode = cpu_to_be32(HTC_M_MONITOR);
priv->ah->opmode = NL80211_IFTYPE_MONITOR;
hvif.index = priv->nvifs;
WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
if (ret)
return ret;
priv->nvifs++;
return 0;
}
static int ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_vif hvif;
int ret = 0;
u8 cmd_rsp;
memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN);
hvif.index = 0; /* Should do for now */
WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
priv->nvifs--;
return ret;
}
static int ath9k_htc_add_station(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_sta tsta;
struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv;
struct ath9k_htc_sta *ista;
int ret;
u8 cmd_rsp;
if (priv->nstations >= ATH9K_HTC_MAX_STA)
return -ENOBUFS;
memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta));
if (sta) {
ista = (struct ath9k_htc_sta *) sta->drv_priv;
memcpy(&tsta.macaddr, sta->addr, ETH_ALEN);
memcpy(&tsta.bssid, common->curbssid, ETH_ALEN);
tsta.associd = common->curaid;
tsta.is_vif_sta = 0;
tsta.valid = true;
ista->index = priv->nstations;
} else {
memcpy(&tsta.macaddr, vif->addr, ETH_ALEN);
tsta.is_vif_sta = 1;
}
tsta.sta_index = priv->nstations;
tsta.vif_index = avp->index;
tsta.maxampdu = 0xffff;
if (sta && sta->ht_cap.ht_supported)
tsta.flags = cpu_to_be16(ATH_HTC_STA_HT);
WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta);
if (ret) {
if (sta)
ath_print(common, ATH_DBG_FATAL,
"Unable to add station entry for: %pM\n", sta->addr);
return ret;
}
if (sta)
ath_print(common, ATH_DBG_CONFIG,
"Added a station entry for: %pM (idx: %d)\n",
sta->addr, tsta.sta_index);
priv->nstations++;
return 0;
}
static int ath9k_htc_remove_station(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_sta *ista;
int ret;
u8 cmd_rsp, sta_idx;
if (sta) {
ista = (struct ath9k_htc_sta *) sta->drv_priv;
sta_idx = ista->index;
} else {
sta_idx = 0;
}
WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx);
if (ret) {
if (sta)
ath_print(common, ATH_DBG_FATAL,
"Unable to remove station entry for: %pM\n",
sta->addr);
return ret;
}
if (sta)
ath_print(common, ATH_DBG_CONFIG,
"Removed a station entry for: %pM (idx: %d)\n",
sta->addr, sta_idx);
priv->nstations--;
return 0;
}
static int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv)
{
struct ath9k_htc_cap_target tcap;
int ret;
u8 cmd_rsp;
memset(&tcap, 0, sizeof(struct ath9k_htc_cap_target));
/* FIXME: Values are hardcoded */
tcap.flags = 0x240c40;
tcap.flags_ext = 0x80601000;
tcap.ampdu_limit = 0xffff0000;
tcap.ampdu_subframes = 20;
tcap.tx_chainmask_legacy = 1;
tcap.protmode = 1;
tcap.tx_chainmask = 1;
WMI_CMD_BUF(WMI_TARGET_IC_UPDATE_CMDID, &tcap);
return ret;
}
static int ath9k_htc_init_rate(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
struct ieee80211_supported_band *sband;
struct ath9k_htc_target_rate trate;
u32 caps = 0;
u8 cmd_rsp;
int i, j, ret;
memset(&trate, 0, sizeof(trate));
/* Only 2GHz is supported */
sband = priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ];
for (i = 0, j = 0; i < sband->n_bitrates; i++) {
if (sta->supp_rates[sband->band] & BIT(i)) {
priv->tgt_rate.rates.legacy_rates.rs_rates[j]
= (sband->bitrates[i].bitrate * 2) / 10;
j++;
}
}
priv->tgt_rate.rates.legacy_rates.rs_nrates = j;
if (sta->ht_cap.ht_supported) {
for (i = 0, j = 0; i < 77; i++) {
if (sta->ht_cap.mcs.rx_mask[i/8] & (1<<(i%8)))
priv->tgt_rate.rates.ht_rates.rs_rates[j++] = i;
if (j == ATH_HTC_RATE_MAX)
break;
}
priv->tgt_rate.rates.ht_rates.rs_nrates = j;
caps = WLAN_RC_HT_FLAG;
if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
caps |= WLAN_RC_40_FLAG;
if (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)
caps |= WLAN_RC_SGI_FLAG;
}
priv->tgt_rate.sta_index = ista->index;
priv->tgt_rate.isnew = 1;
trate = priv->tgt_rate;
priv->tgt_rate.capflags = caps;
trate.capflags = cpu_to_be32(caps);
WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, &trate);
if (ret) {
ath_print(common, ATH_DBG_FATAL,
"Unable to initialize Rate information on target\n");
return ret;
}
ath_print(common, ATH_DBG_CONFIG,
"Updated target STA: %pM (caps: 0x%x)\n", sta->addr, caps);
return 0;
}
static bool check_rc_update(struct ieee80211_hw *hw, bool *cw40)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ieee80211_conf *conf = &hw->conf;
if (!conf_is_ht(conf))
return false;
if (!(priv->op_flags & OP_ASSOCIATED) ||
(priv->op_flags & OP_SCANNING))
return false;
if (conf_is_ht40(conf)) {
if (priv->ah->curchan->chanmode &
(CHANNEL_HT40PLUS | CHANNEL_HT40MINUS)) {
return false;
} else {
*cw40 = true;
return true;
}
} else { /* ht20 */
if (priv->ah->curchan->chanmode & CHANNEL_HT20)
return false;
else
return true;
}
}
static void ath9k_htc_rc_update(struct ath9k_htc_priv *priv, bool is_cw40)
{
struct ath9k_htc_target_rate trate;
struct ath_common *common = ath9k_hw_common(priv->ah);
int ret;
u8 cmd_rsp;
memset(&trate, 0, sizeof(trate));
trate = priv->tgt_rate;
if (is_cw40)
priv->tgt_rate.capflags |= WLAN_RC_40_FLAG;
else
priv->tgt_rate.capflags &= ~WLAN_RC_40_FLAG;
trate.capflags = cpu_to_be32(priv->tgt_rate.capflags);
WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, &trate);
if (ret) {
ath_print(common, ATH_DBG_FATAL,
"Unable to update Rate information on target\n");
return;
}
ath_print(common, ATH_DBG_CONFIG, "Rate control updated with "
"caps:0x%x on target\n", priv->tgt_rate.capflags);
}
static int ath9k_htc_aggr_oper(struct ath9k_htc_priv *priv,
struct ieee80211_vif *vif,
u8 *sta_addr, u8 tid, bool oper)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_aggr aggr;
struct ieee80211_sta *sta = NULL;
struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv;
int ret = 0;
u8 cmd_rsp;
if (tid > ATH9K_HTC_MAX_TID)
return -EINVAL;
rcu_read_lock();
sta = ieee80211_find_sta(vif, sta_addr);
if (sta) {
ista = (struct ath9k_htc_sta *) sta->drv_priv;
} else {
rcu_read_unlock();
return -EINVAL;
}
if (!ista) {
rcu_read_unlock();
return -EINVAL;
}
memset(&aggr, 0, sizeof(struct ath9k_htc_target_aggr));
aggr.sta_index = ista->index;
rcu_read_unlock();
aggr.tidno = tid;
aggr.aggr_enable = oper;
if (oper)
ista->tid_state[tid] = AGGR_START;
else
ista->tid_state[tid] = AGGR_STOP;
WMI_CMD_BUF(WMI_TX_AGGR_ENABLE_CMDID, &aggr);
if (ret)
ath_print(common, ATH_DBG_CONFIG,
"Unable to %s TX aggregation for (%pM, %d)\n",
(oper) ? "start" : "stop", sta->addr, tid);
else
ath_print(common, ATH_DBG_CONFIG,
"%s aggregation for (%pM, %d)\n",
(oper) ? "Starting" : "Stopping", sta->addr, tid);
return ret;
}
void ath9k_htc_aggr_work(struct work_struct *work)
{
int ret = 0;
struct ath9k_htc_priv *priv =
container_of(work, struct ath9k_htc_priv,
ath9k_aggr_work.work);
struct ath9k_htc_aggr_work *wk = &priv->aggr_work;
mutex_lock(&wk->mutex);
switch (wk->action) {
case IEEE80211_AMPDU_TX_START:
ret = ath9k_htc_aggr_oper(priv, wk->vif, wk->sta_addr,
wk->tid, true);
if (!ret)
ieee80211_start_tx_ba_cb(wk->vif, wk->sta_addr,
wk->tid);
break;
case IEEE80211_AMPDU_TX_STOP:
ath9k_htc_aggr_oper(priv, wk->vif, wk->sta_addr,
wk->tid, false);
ieee80211_stop_tx_ba_cb(wk->vif, wk->sta_addr, wk->tid);
break;
default:
ath_print(ath9k_hw_common(priv->ah), ATH_DBG_FATAL,
"Unknown AMPDU action\n");
}
mutex_unlock(&wk->mutex);
}
/*********/
/* DEBUG */
/*********/
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
static int ath9k_debugfs_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath9k_htc_priv *priv =
(struct ath9k_htc_priv *) file->private_data;
struct ath9k_htc_target_stats cmd_rsp;
char buf[512];
unsigned int len = 0;
int ret = 0;
memset(&cmd_rsp, 0, sizeof(cmd_rsp));
WMI_CMD(WMI_TGT_STATS_CMDID);
if (ret)
return -EINVAL;
len += snprintf(buf + len, sizeof(buf) - len,
"%19s : %10u\n", "TX Short Retries",
be32_to_cpu(cmd_rsp.tx_shortretry));
len += snprintf(buf + len, sizeof(buf) - len,
"%19s : %10u\n", "TX Long Retries",
be32_to_cpu(cmd_rsp.tx_longretry));
len += snprintf(buf + len, sizeof(buf) - len,
"%19s : %10u\n", "TX Xretries",
be32_to_cpu(cmd_rsp.tx_xretries));
len += snprintf(buf + len, sizeof(buf) - len,
"%19s : %10u\n", "TX Unaggr. Xretries",
be32_to_cpu(cmd_rsp.ht_txunaggr_xretry));
len += snprintf(buf + len, sizeof(buf) - len,
"%19s : %10u\n", "TX Xretries (HT)",
be32_to_cpu(cmd_rsp.ht_tx_xretries));
len += snprintf(buf + len, sizeof(buf) - len,
"%19s : %10u\n", "TX Rate", priv->debug.txrate);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_tgt_stats = {
.read = read_file_tgt_stats,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath9k_htc_priv *priv =
(struct ath9k_htc_priv *) file->private_data;
char buf[512];
unsigned int len = 0;
len += snprintf(buf + len, sizeof(buf) - len,
"%20s : %10u\n", "Buffers queued",
priv->debug.tx_stats.buf_queued);
len += snprintf(buf + len, sizeof(buf) - len,
"%20s : %10u\n", "Buffers completed",
priv->debug.tx_stats.buf_completed);
len += snprintf(buf + len, sizeof(buf) - len,
"%20s : %10u\n", "SKBs queued",
priv->debug.tx_stats.skb_queued);
len += snprintf(buf + len, sizeof(buf) - len,
"%20s : %10u\n", "SKBs completed",
priv->debug.tx_stats.skb_completed);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_xmit = {
.read = read_file_xmit,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
static ssize_t read_file_recv(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ath9k_htc_priv *priv =
(struct ath9k_htc_priv *) file->private_data;
char buf[512];
unsigned int len = 0;
len += snprintf(buf + len, sizeof(buf) - len,
"%20s : %10u\n", "SKBs allocated",
priv->debug.rx_stats.skb_allocated);
len += snprintf(buf + len, sizeof(buf) - len,
"%20s : %10u\n", "SKBs completed",
priv->debug.rx_stats.skb_completed);
len += snprintf(buf + len, sizeof(buf) - len,
"%20s : %10u\n", "SKBs Dropped",
priv->debug.rx_stats.skb_dropped);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
static const struct file_operations fops_recv = {
.read = read_file_recv,
.open = ath9k_debugfs_open,
.owner = THIS_MODULE
};
int ath9k_init_debug(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
if (!ath9k_debugfs_root)
return -ENOENT;
priv->debug.debugfs_phy = debugfs_create_dir(wiphy_name(priv->hw->wiphy),
ath9k_debugfs_root);
if (!priv->debug.debugfs_phy)
goto err;
priv->debug.debugfs_tgt_stats = debugfs_create_file("tgt_stats", S_IRUSR,
priv->debug.debugfs_phy,
priv, &fops_tgt_stats);
if (!priv->debug.debugfs_tgt_stats)
goto err;
priv->debug.debugfs_xmit = debugfs_create_file("xmit", S_IRUSR,
priv->debug.debugfs_phy,
priv, &fops_xmit);
if (!priv->debug.debugfs_xmit)
goto err;
priv->debug.debugfs_recv = debugfs_create_file("recv", S_IRUSR,
priv->debug.debugfs_phy,
priv, &fops_recv);
if (!priv->debug.debugfs_recv)
goto err;
return 0;
err:
ath9k_exit_debug(ah);
return -ENOMEM;
}
void ath9k_exit_debug(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
debugfs_remove(priv->debug.debugfs_recv);
debugfs_remove(priv->debug.debugfs_xmit);
debugfs_remove(priv->debug.debugfs_tgt_stats);
debugfs_remove(priv->debug.debugfs_phy);
}
int ath9k_debug_create_root(void)
{
ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL);
if (!ath9k_debugfs_root)
return -ENOENT;
return 0;
}
void ath9k_debug_remove_root(void)
{
debugfs_remove(ath9k_debugfs_root);
ath9k_debugfs_root = NULL;
}
#endif /* CONFIG_ATH9K_HTC_DEBUGFS */
/*******/
/* ANI */
/*******/
static void ath_start_ani(struct ath9k_htc_priv *priv)
{
struct ath_common *common = ath9k_hw_common(priv->ah);
unsigned long timestamp = jiffies_to_msecs(jiffies);
common->ani.longcal_timer = timestamp;
common->ani.shortcal_timer = timestamp;
common->ani.checkani_timer = timestamp;
ieee80211_queue_delayed_work(common->hw, &priv->ath9k_ani_work,
msecs_to_jiffies(ATH_ANI_POLLINTERVAL));
}
void ath9k_ani_work(struct work_struct *work)
{
struct ath9k_htc_priv *priv =
container_of(work, struct ath9k_htc_priv,
ath9k_ani_work.work);
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
bool longcal = false;
bool shortcal = false;
bool aniflag = false;
unsigned int timestamp = jiffies_to_msecs(jiffies);
u32 cal_interval, short_cal_interval;
short_cal_interval = ATH_STA_SHORT_CALINTERVAL;
/* Long calibration runs independently of short calibration. */
if ((timestamp - common->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) {
longcal = true;
ath_print(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies);
common->ani.longcal_timer = timestamp;
}
/* Short calibration applies only while caldone is false */
if (!common->ani.caldone) {
if ((timestamp - common->ani.shortcal_timer) >=
short_cal_interval) {
shortcal = true;
ath_print(common, ATH_DBG_ANI,
"shortcal @%lu\n", jiffies);
common->ani.shortcal_timer = timestamp;
common->ani.resetcal_timer = timestamp;
}
} else {
if ((timestamp - common->ani.resetcal_timer) >=
ATH_RESTART_CALINTERVAL) {
common->ani.caldone = ath9k_hw_reset_calvalid(ah);
if (common->ani.caldone)
common->ani.resetcal_timer = timestamp;
}
}
/* Verify whether we must check ANI */
if ((timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) {
aniflag = true;
common->ani.checkani_timer = timestamp;
}
/* Skip all processing if there's nothing to do. */
if (longcal || shortcal || aniflag) {
/* Call ANI routine if necessary */
if (aniflag)
ath9k_hw_ani_monitor(ah, ah->curchan);
/* Perform calibration if necessary */
if (longcal || shortcal) {
common->ani.caldone =
ath9k_hw_calibrate(ah, ah->curchan,
common->rx_chainmask,
longcal);
if (longcal)
common->ani.noise_floor =
ath9k_hw_getchan_noise(ah, ah->curchan);
ath_print(common, ATH_DBG_ANI,
" calibrate chan %u/%x nf: %d\n",
ah->curchan->channel,
ah->curchan->channelFlags,
common->ani.noise_floor);
}
}
/*
* Set timer interval based on previous results.
* The interval must be the shortest necessary to satisfy ANI,
* short calibration and long calibration.
*/
cal_interval = ATH_LONG_CALINTERVAL;
if (priv->ah->config.enable_ani)
cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL);
if (!common->ani.caldone)
cal_interval = min(cal_interval, (u32)short_cal_interval);
ieee80211_queue_delayed_work(common->hw, &priv->ath9k_ani_work,
msecs_to_jiffies(cal_interval));
}
/*******/
/* LED */
/*******/
static void ath9k_led_blink_work(struct work_struct *work)
{
struct ath9k_htc_priv *priv = container_of(work, struct ath9k_htc_priv,
ath9k_led_blink_work.work);
if (!(priv->op_flags & OP_LED_ASSOCIATED))
return;
if ((priv->led_on_duration == ATH_LED_ON_DURATION_IDLE) ||
(priv->led_off_duration == ATH_LED_OFF_DURATION_IDLE))
ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0);
else
ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
(priv->op_flags & OP_LED_ON) ? 1 : 0);
ieee80211_queue_delayed_work(priv->hw,
&priv->ath9k_led_blink_work,
(priv->op_flags & OP_LED_ON) ?
msecs_to_jiffies(priv->led_off_duration) :
msecs_to_jiffies(priv->led_on_duration));
priv->led_on_duration = priv->led_on_cnt ?
max((ATH_LED_ON_DURATION_IDLE - priv->led_on_cnt), 25) :
ATH_LED_ON_DURATION_IDLE;
priv->led_off_duration = priv->led_off_cnt ?
max((ATH_LED_OFF_DURATION_IDLE - priv->led_off_cnt), 10) :
ATH_LED_OFF_DURATION_IDLE;
priv->led_on_cnt = priv->led_off_cnt = 0;
if (priv->op_flags & OP_LED_ON)
priv->op_flags &= ~OP_LED_ON;
else
priv->op_flags |= OP_LED_ON;
}
static void ath9k_led_brightness_work(struct work_struct *work)
{
struct ath_led *led = container_of(work, struct ath_led,
brightness_work.work);
struct ath9k_htc_priv *priv = led->priv;
switch (led->brightness) {
case LED_OFF:
if (led->led_type == ATH_LED_ASSOC ||
led->led_type == ATH_LED_RADIO) {
ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
(led->led_type == ATH_LED_RADIO));
priv->op_flags &= ~OP_LED_ASSOCIATED;
if (led->led_type == ATH_LED_RADIO)
priv->op_flags &= ~OP_LED_ON;
} else {
priv->led_off_cnt++;
}
break;
case LED_FULL:
if (led->led_type == ATH_LED_ASSOC) {
priv->op_flags |= OP_LED_ASSOCIATED;
ieee80211_queue_delayed_work(priv->hw,
&priv->ath9k_led_blink_work, 0);
} else if (led->led_type == ATH_LED_RADIO) {
ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0);
priv->op_flags |= OP_LED_ON;
} else {
priv->led_on_cnt++;
}
break;
default:
break;
}
}
static void ath9k_led_brightness(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev);
struct ath9k_htc_priv *priv = led->priv;
led->brightness = brightness;
if (!(priv->op_flags & OP_LED_DEINIT))
ieee80211_queue_delayed_work(priv->hw,
&led->brightness_work, 0);
}
static void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv)
{
cancel_delayed_work_sync(&priv->radio_led.brightness_work);
cancel_delayed_work_sync(&priv->assoc_led.brightness_work);
cancel_delayed_work_sync(&priv->tx_led.brightness_work);
cancel_delayed_work_sync(&priv->rx_led.brightness_work);
}
static int ath9k_register_led(struct ath9k_htc_priv *priv, struct ath_led *led,
char *trigger)
{
int ret;
led->priv = priv;
led->led_cdev.name = led->name;
led->led_cdev.default_trigger = trigger;
led->led_cdev.brightness_set = ath9k_led_brightness;
ret = led_classdev_register(wiphy_dev(priv->hw->wiphy), &led->led_cdev);
if (ret)
ath_print(ath9k_hw_common(priv->ah), ATH_DBG_FATAL,
"Failed to register led:%s", led->name);
else
led->registered = 1;
INIT_DELAYED_WORK(&led->brightness_work, ath9k_led_brightness_work);
return ret;
}
static void ath9k_unregister_led(struct ath_led *led)
{
if (led->registered) {
led_classdev_unregister(&led->led_cdev);
led->registered = 0;
}
}
void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
{
priv->op_flags |= OP_LED_DEINIT;
ath9k_unregister_led(&priv->assoc_led);
priv->op_flags &= ~OP_LED_ASSOCIATED;
ath9k_unregister_led(&priv->tx_led);
ath9k_unregister_led(&priv->rx_led);
ath9k_unregister_led(&priv->radio_led);
ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1);
}
void ath9k_init_leds(struct ath9k_htc_priv *priv)
{
char *trigger;
int ret;
if (AR_SREV_9287(priv->ah))
priv->ah->led_pin = ATH_LED_PIN_9287;
else if (AR_SREV_9271(priv->ah))
priv->ah->led_pin = ATH_LED_PIN_9271;
else
priv->ah->led_pin = ATH_LED_PIN_DEF;
/* Configure gpio 1 for output */
ath9k_hw_cfg_output(priv->ah, priv->ah->led_pin,
AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
/* LED off, active low */
ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1);
INIT_DELAYED_WORK(&priv->ath9k_led_blink_work, ath9k_led_blink_work);
trigger = ieee80211_get_radio_led_name(priv->hw);
snprintf(priv->radio_led.name, sizeof(priv->radio_led.name),
"ath9k-%s::radio", wiphy_name(priv->hw->wiphy));
ret = ath9k_register_led(priv, &priv->radio_led, trigger);
priv->radio_led.led_type = ATH_LED_RADIO;
if (ret)
goto fail;
trigger = ieee80211_get_assoc_led_name(priv->hw);
snprintf(priv->assoc_led.name, sizeof(priv->assoc_led.name),
"ath9k-%s::assoc", wiphy_name(priv->hw->wiphy));
ret = ath9k_register_led(priv, &priv->assoc_led, trigger);
priv->assoc_led.led_type = ATH_LED_ASSOC;
if (ret)
goto fail;
trigger = ieee80211_get_tx_led_name(priv->hw);
snprintf(priv->tx_led.name, sizeof(priv->tx_led.name),
"ath9k-%s::tx", wiphy_name(priv->hw->wiphy));
ret = ath9k_register_led(priv, &priv->tx_led, trigger);
priv->tx_led.led_type = ATH_LED_TX;
if (ret)
goto fail;
trigger = ieee80211_get_rx_led_name(priv->hw);
snprintf(priv->rx_led.name, sizeof(priv->rx_led.name),
"ath9k-%s::rx", wiphy_name(priv->hw->wiphy));
ret = ath9k_register_led(priv, &priv->rx_led, trigger);
priv->rx_led.led_type = ATH_LED_RX;
if (ret)
goto fail;
priv->op_flags &= ~OP_LED_DEINIT;
return;
fail:
cancel_delayed_work_sync(&priv->ath9k_led_blink_work);
ath9k_deinit_leds(priv);
}
/*******************/
/* Rfkill */
/*******************/
static bool ath_is_rfkill_set(struct ath9k_htc_priv *priv)
{
return ath9k_hw_gpio_get(priv->ah, priv->ah->rfkill_gpio) ==
priv->ah->rfkill_polarity;
}
static void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
bool blocked = !!ath_is_rfkill_set(priv);
wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
}
void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv)
{
if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
wiphy_rfkill_start_polling(priv->hw->wiphy);
}
/**********************/
/* mac80211 Callbacks */
/**********************/
static int ath9k_htc_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr;
struct ath9k_htc_priv *priv = hw->priv;
int padpos, padsize;
hdr = (struct ieee80211_hdr *) skb->data;
/* Add the padding after the header if this is not already done */
padpos = ath9k_cmn_padpos(hdr->frame_control);
padsize = padpos & 3;
if (padsize && skb->len > padpos) {
if (skb_headroom(skb) < padsize)
return -1;
skb_push(skb, padsize);
memmove(skb->data, skb->data + padsize, padpos);
}
if (ath9k_htc_tx_start(priv, skb) != 0) {
ath_print(ath9k_hw_common(priv->ah), ATH_DBG_XMIT, "Tx failed");
goto fail_tx;
}
return 0;
fail_tx:
dev_kfree_skb_any(skb);
return 0;
}
static int ath9k_htc_start(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_channel *curchan = hw->conf.channel;
struct ath9k_channel *init_channel;
int ret = 0;
enum htc_phymode mode;
u16 htc_mode;
u8 cmd_rsp;
ath_print(common, ATH_DBG_CONFIG,
"Starting driver with initial channel: %d MHz\n",
curchan->center_freq);
mutex_lock(&priv->mutex);
/* setup initial channel */
init_channel = ath9k_cmn_get_curchannel(hw, ah);
/* Reset SERDES registers */
ath9k_hw_configpcipowersave(ah, 0, 0);
ath9k_hw_htc_resetinit(ah);
ret = ath9k_hw_reset(ah, init_channel, false);
if (ret) {
ath_print(common, ATH_DBG_FATAL,
"Unable to reset hardware; reset status %d "
"(freq %u MHz)\n", ret, curchan->center_freq);
goto mutex_unlock;
}
ath_update_txpow(priv);
mode = ath9k_htc_get_curmode(priv, init_channel);
htc_mode = cpu_to_be16(mode);
WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode);
if (ret)
goto mutex_unlock;
WMI_CMD(WMI_ATH_INIT_CMDID);
if (ret)
goto mutex_unlock;
WMI_CMD(WMI_START_RECV_CMDID);
if (ret)
goto mutex_unlock;
ath9k_host_rx_init(priv);
priv->op_flags &= ~OP_INVALID;
htc_start(priv->htc);
mutex_unlock:
mutex_unlock(&priv->mutex);
return ret;
}
static void ath9k_htc_stop(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
int ret = 0;
u8 cmd_rsp;
mutex_lock(&priv->mutex);
if (priv->op_flags & OP_INVALID) {
ath_print(common, ATH_DBG_ANY, "Device not present\n");
mutex_unlock(&priv->mutex);
return;
}
htc_stop(priv->htc);
WMI_CMD(WMI_DISABLE_INTR_CMDID);
WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
WMI_CMD(WMI_STOP_RECV_CMDID);
ath9k_hw_phy_disable(ah);
ath9k_hw_disable(ah);
ath9k_hw_configpcipowersave(ah, 1, 1);
ath9k_hw_setpower(ah, ATH9K_PM_FULL_SLEEP);
cancel_delayed_work_sync(&priv->ath9k_ani_work);
cancel_delayed_work_sync(&priv->ath9k_aggr_work);
cancel_delayed_work_sync(&priv->ath9k_led_blink_work);
ath9k_led_stop_brightness(priv);
skb_queue_purge(&priv->tx_queue);
/* Remove monitor interface here */
if (ah->opmode == NL80211_IFTYPE_MONITOR) {
if (ath9k_htc_remove_monitor_interface(priv))
ath_print(common, ATH_DBG_FATAL,
"Unable to remove monitor interface\n");
else
ath_print(common, ATH_DBG_CONFIG,
"Monitor interface removed\n");
}
priv->op_flags |= OP_INVALID;
mutex_unlock(&priv->mutex);
ath_print(common, ATH_DBG_CONFIG, "Driver halt\n");
}
static int ath9k_htc_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_target_vif hvif;
int ret = 0;
u8 cmd_rsp;
mutex_lock(&priv->mutex);
/* Only one interface for now */
if (priv->nvifs > 0) {
ret = -ENOBUFS;
goto out;
}
memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
switch (vif->type) {
case NL80211_IFTYPE_STATION:
hvif.opmode = cpu_to_be32(HTC_M_STA);
break;
case NL80211_IFTYPE_ADHOC:
hvif.opmode = cpu_to_be32(HTC_M_IBSS);
break;
default:
ath_print(common, ATH_DBG_FATAL,
"Interface type %d not yet supported\n", vif->type);
ret = -EOPNOTSUPP;
goto out;
}
ath_print(common, ATH_DBG_CONFIG,
"Attach a VIF of type: %d\n", vif->type);
priv->ah->opmode = vif->type;
/* Index starts from zero on the target */
avp->index = hvif.index = priv->nvifs;
hvif.rtsthreshold = cpu_to_be16(2304);
WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif);
if (ret)
goto out;
priv->nvifs++;
/*
* We need a node in target to tx mgmt frames
* before association.
*/
ret = ath9k_htc_add_station(priv, vif, NULL);
if (ret)
goto out;
ret = ath9k_htc_update_cap_target(priv);
if (ret)
ath_print(common, ATH_DBG_CONFIG, "Failed to update"
" capability in target \n");
priv->vif = vif;
out:
mutex_unlock(&priv->mutex);
return ret;
}
static void ath9k_htc_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_htc_vif *avp = (void *)vif->drv_priv;
struct ath9k_htc_target_vif hvif;
int ret = 0;
u8 cmd_rsp;
ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n");
mutex_lock(&priv->mutex);
memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif));
memcpy(&hvif.myaddr, vif->addr, ETH_ALEN);
hvif.index = avp->index;
WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif);
priv->nvifs--;
ath9k_htc_remove_station(priv, vif, NULL);
if (vif->type == NL80211_IFTYPE_ADHOC) {
spin_lock_bh(&priv->beacon_lock);
if (priv->beacon)
dev_kfree_skb_any(priv->beacon);
priv->beacon = NULL;
spin_unlock_bh(&priv->beacon_lock);
}
priv->vif = NULL;
mutex_unlock(&priv->mutex);
}
static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ieee80211_conf *conf = &hw->conf;
mutex_lock(&priv->mutex);
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
struct ieee80211_channel *curchan = hw->conf.channel;
int pos = curchan->hw_value;
bool is_cw40 = false;
ath_print(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n",
curchan->center_freq);
if (check_rc_update(hw, &is_cw40))
ath9k_htc_rc_update(priv, is_cw40);
ath9k_cmn_update_ichannel(hw, &priv->ah->channels[pos]);
if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) {
ath_print(common, ATH_DBG_FATAL,
"Unable to set channel\n");
mutex_unlock(&priv->mutex);
return -EINVAL;
}
}
if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
if (conf->flags & IEEE80211_CONF_MONITOR) {
if (ath9k_htc_add_monitor_interface(priv))
ath_print(common, ATH_DBG_FATAL,
"Failed to set monitor mode\n");
else
ath_print(common, ATH_DBG_CONFIG,
"HW opmode set to Monitor mode\n");
}
}
mutex_unlock(&priv->mutex);
return 0;
}
#define SUPPORTED_FILTERS \
(FIF_PROMISC_IN_BSS | \
FIF_ALLMULTI | \
FIF_CONTROL | \
FIF_PSPOLL | \
FIF_OTHER_BSS | \
FIF_BCN_PRBRESP_PROMISC | \
FIF_FCSFAIL)
static void ath9k_htc_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags,
u64 multicast)
{
struct ath9k_htc_priv *priv = hw->priv;
u32 rfilt;
mutex_lock(&priv->mutex);
changed_flags &= SUPPORTED_FILTERS;
*total_flags &= SUPPORTED_FILTERS;
priv->rxfilter = *total_flags;
rfilt = ath9k_cmn_calcrxfilter(hw, priv->ah, priv->rxfilter);
ath9k_hw_setrxfilter(priv->ah, rfilt);
ath_print(ath9k_hw_common(priv->ah), ATH_DBG_CONFIG,
"Set HW RX filter: 0x%x\n", rfilt);
mutex_unlock(&priv->mutex);
}
static void ath9k_htc_sta_notify(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum sta_notify_cmd cmd,
struct ieee80211_sta *sta)
{
struct ath9k_htc_priv *priv = hw->priv;
int ret;
switch (cmd) {
case STA_NOTIFY_ADD:
ret = ath9k_htc_add_station(priv, vif, sta);
if (!ret)
ath9k_htc_init_rate(priv, vif, sta);
break;
case STA_NOTIFY_REMOVE:
ath9k_htc_remove_station(priv, vif, sta);
break;
default:
break;
}
}
static int ath9k_htc_conf_tx(struct ieee80211_hw *hw, u16 queue,
const struct ieee80211_tx_queue_params *params)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath_common *common = ath9k_hw_common(priv->ah);
struct ath9k_tx_queue_info qi;
int ret = 0, qnum;
if (queue >= WME_NUM_AC)
return 0;
mutex_lock(&priv->mutex);
memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));
qi.tqi_aifs = params->aifs;
qi.tqi_cwmin = params->cw_min;
qi.tqi_cwmax = params->cw_max;
qi.tqi_burstTime = params->txop;
qnum = get_hw_qnum(queue, priv->hwq_map);
ath_print(common, ATH_DBG_CONFIG,
"Configure tx [queue/hwq] [%d/%d], "
"aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
queue, qnum, params->aifs, params->cw_min,
params->cw_max, params->txop);
ret = ath_txq_update(priv, qnum, &qi);
if (ret)
ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n");
mutex_unlock(&priv->mutex);
return ret;
}
static int ath9k_htc_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 ath9k_htc_priv *priv = hw->priv;
struct ath_common *common = ath9k_hw_common(priv->ah);
int ret = 0;
if (modparam_nohwcrypt)
return -ENOSPC;
mutex_lock(&priv->mutex);
ath_print(common, ATH_DBG_CONFIG, "Set HW Key\n");
switch (cmd) {
case SET_KEY:
ret = ath9k_cmn_key_config(common, vif, sta, key);
if (ret >= 0) {
key->hw_key_idx = ret;
/* push IV and Michael MIC generation to stack */
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
if (key->alg == ALG_TKIP)
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
if (priv->ah->sw_mgmt_crypto && key->alg == ALG_CCMP)
key->flags |= IEEE80211_KEY_FLAG_SW_MGMT;
ret = 0;
}
break;
case DISABLE_KEY:
ath9k_cmn_key_delete(common, key);
break;
default:
ret = -EINVAL;
}
mutex_unlock(&priv->mutex);
return ret;
}
static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *bss_conf,
u32 changed)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
mutex_lock(&priv->mutex);
if (changed & BSS_CHANGED_ASSOC) {
common->curaid = bss_conf->assoc ?
bss_conf->aid : 0;
ath_print(common, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n",
bss_conf->assoc);
if (bss_conf->assoc) {
priv->op_flags |= OP_ASSOCIATED;
ath_start_ani(priv);
} else {
priv->op_flags &= ~OP_ASSOCIATED;
cancel_delayed_work_sync(&priv->ath9k_ani_work);
}
}
if (changed & BSS_CHANGED_BSSID) {
/* Set BSSID */
memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN);
ath9k_hw_write_associd(ah);
ath_print(common, ATH_DBG_CONFIG,
"BSSID: %pM aid: 0x%x\n",
common->curbssid, common->curaid);
}
if ((changed & BSS_CHANGED_BEACON_INT) ||
(changed & BSS_CHANGED_BEACON) ||
((changed & BSS_CHANGED_BEACON_ENABLED) &&
bss_conf->enable_beacon)) {
priv->op_flags |= OP_ENABLE_BEACON;
ath9k_htc_beacon_config(priv, vif, bss_conf);
}
if (changed & BSS_CHANGED_BEACON)
ath9k_htc_beacon_update(priv, vif);
if ((changed & BSS_CHANGED_BEACON_ENABLED) &&
!bss_conf->enable_beacon) {
priv->op_flags &= ~OP_ENABLE_BEACON;
ath9k_htc_beacon_config(priv, vif, bss_conf);
}
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
ath_print(common, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n",
bss_conf->use_short_preamble);
if (bss_conf->use_short_preamble)
priv->op_flags |= OP_PREAMBLE_SHORT;
else
priv->op_flags &= ~OP_PREAMBLE_SHORT;
}
if (changed & BSS_CHANGED_ERP_CTS_PROT) {
ath_print(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n",
bss_conf->use_cts_prot);
if (bss_conf->use_cts_prot &&
hw->conf.channel->band != IEEE80211_BAND_5GHZ)
priv->op_flags |= OP_PROTECT_ENABLE;
else
priv->op_flags &= ~OP_PROTECT_ENABLE;
}
if (changed & BSS_CHANGED_ERP_SLOT) {
if (bss_conf->use_short_slot)
ah->slottime = 9;
else
ah->slottime = 20;
ath9k_hw_init_global_settings(ah);
}
mutex_unlock(&priv->mutex);
}
static u64 ath9k_htc_get_tsf(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
u64 tsf;
mutex_lock(&priv->mutex);
tsf = ath9k_hw_gettsf64(priv->ah);
mutex_unlock(&priv->mutex);
return tsf;
}
static void ath9k_htc_set_tsf(struct ieee80211_hw *hw, u64 tsf)
{
struct ath9k_htc_priv *priv = hw->priv;
mutex_lock(&priv->mutex);
ath9k_hw_settsf64(priv->ah, tsf);
mutex_unlock(&priv->mutex);
}
static void ath9k_htc_reset_tsf(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
mutex_lock(&priv->mutex);
ath9k_hw_reset_tsf(priv->ah);
mutex_unlock(&priv->mutex);
}
static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
enum ieee80211_ampdu_mlme_action action,
struct ieee80211_sta *sta,
u16 tid, u16 *ssn)
{
struct ath9k_htc_priv *priv = hw->priv;
struct ath9k_htc_aggr_work *work = &priv->aggr_work;
struct ath9k_htc_sta *ista;
switch (action) {
case IEEE80211_AMPDU_RX_START:
break;
case IEEE80211_AMPDU_RX_STOP:
break;
case IEEE80211_AMPDU_TX_START:
case IEEE80211_AMPDU_TX_STOP:
if (!(priv->op_flags & OP_TXAGGR))
return -ENOTSUPP;
memcpy(work->sta_addr, sta->addr, ETH_ALEN);
work->hw = hw;
work->vif = vif;
work->action = action;
work->tid = tid;
ieee80211_queue_delayed_work(hw, &priv->ath9k_aggr_work, 0);
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
ista = (struct ath9k_htc_sta *) sta->drv_priv;
ista->tid_state[tid] = AGGR_OPERATIONAL;
break;
default:
ath_print(ath9k_hw_common(priv->ah), ATH_DBG_FATAL,
"Unknown AMPDU action\n");
}
return 0;
}
static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
mutex_lock(&priv->mutex);
spin_lock_bh(&priv->beacon_lock);
priv->op_flags |= OP_SCANNING;
spin_unlock_bh(&priv->beacon_lock);
cancel_delayed_work_sync(&priv->ath9k_ani_work);
mutex_unlock(&priv->mutex);
}
static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw)
{
struct ath9k_htc_priv *priv = hw->priv;
mutex_lock(&priv->mutex);
spin_lock_bh(&priv->beacon_lock);
priv->op_flags &= ~OP_SCANNING;
spin_unlock_bh(&priv->beacon_lock);
priv->op_flags |= OP_FULL_RESET;
ath_start_ani(priv);
mutex_unlock(&priv->mutex);
}
static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
{
return 0;
}
static void ath9k_htc_set_coverage_class(struct ieee80211_hw *hw,
u8 coverage_class)
{
struct ath9k_htc_priv *priv = hw->priv;
mutex_lock(&priv->mutex);
priv->ah->coverage_class = coverage_class;
ath9k_hw_init_global_settings(priv->ah);
mutex_unlock(&priv->mutex);
}
struct ieee80211_ops ath9k_htc_ops = {
.tx = ath9k_htc_tx,
.start = ath9k_htc_start,
.stop = ath9k_htc_stop,
.add_interface = ath9k_htc_add_interface,
.remove_interface = ath9k_htc_remove_interface,
.config = ath9k_htc_config,
.configure_filter = ath9k_htc_configure_filter,
.sta_notify = ath9k_htc_sta_notify,
.conf_tx = ath9k_htc_conf_tx,
.bss_info_changed = ath9k_htc_bss_info_changed,
.set_key = ath9k_htc_set_key,
.get_tsf = ath9k_htc_get_tsf,
.set_tsf = ath9k_htc_set_tsf,
.reset_tsf = ath9k_htc_reset_tsf,
.ampdu_action = ath9k_htc_ampdu_action,
.sw_scan_start = ath9k_htc_sw_scan_start,
.sw_scan_complete = ath9k_htc_sw_scan_complete,
.set_rts_threshold = ath9k_htc_set_rts_threshold,
.rfkill_poll = ath9k_htc_rfkill_poll_state,
.set_coverage_class = ath9k_htc_set_coverage_class,
};
drivers/net/wireless/ath/ath9k/htc_drv_txrx.c 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 "htc.h"
/******/
/* TX */
/******/
int get_hw_qnum(u16 queue, int *hwq_map)
{
switch (queue) {
case 0:
return hwq_map[ATH9K_WME_AC_VO];
case 1:
return hwq_map[ATH9K_WME_AC_VI];
case 2:
return hwq_map[ATH9K_WME_AC_BE];
case 3:
return hwq_map[ATH9K_WME_AC_BK];
default:
return hwq_map[ATH9K_WME_AC_BE];
}
}
int ath_txq_update(struct ath9k_htc_priv *priv, int qnum,
struct ath9k_tx_queue_info *qinfo)
{
struct ath_hw *ah = priv->ah;
int error = 0;
struct ath9k_tx_queue_info qi;
ath9k_hw_get_txq_props(ah, qnum, &qi);
qi.tqi_aifs = qinfo->tqi_aifs;
qi.tqi_cwmin = qinfo->tqi_cwmin / 2; /* XXX */
qi.tqi_cwmax = qinfo->tqi_cwmax;
qi.tqi_burstTime = qinfo->tqi_burstTime;
qi.tqi_readyTime = qinfo->tqi_readyTime;
if (!ath9k_hw_set_txq_props(ah, qnum, &qi)) {
ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
"Unable to update hardware queue %u!\n", qnum);
error = -EIO;
} else {
ath9k_hw_resettxqueue(ah, qnum);
}
return error;
}
int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_sta *sta = tx_info->control.sta;
struct ath9k_htc_sta *ista;
struct ath9k_htc_vif *avp;
struct ath9k_htc_tx_ctl tx_ctl;
enum htc_endpoint_id epid;
u16 qnum, hw_qnum;
__le16 fc;
u8 *tx_fhdr;
u8 sta_idx;
hdr = (struct ieee80211_hdr *) skb->data;
fc = hdr->frame_control;
avp = (struct ath9k_htc_vif *) tx_info->control.vif->drv_priv;
if (sta) {
ista = (struct ath9k_htc_sta *) sta->drv_priv;
sta_idx = ista->index;
} else {
sta_idx = 0;
}
memset(&tx_ctl, 0, sizeof(struct ath9k_htc_tx_ctl));
if (ieee80211_is_data(fc)) {
struct tx_frame_hdr tx_hdr;
u8 *qc;
memset(&tx_hdr, 0, sizeof(struct tx_frame_hdr));
tx_hdr.node_idx = sta_idx;
tx_hdr.vif_idx = avp->index;
if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
tx_ctl.type = ATH9K_HTC_AMPDU;
tx_hdr.data_type = ATH9K_HTC_AMPDU;
} else {
tx_ctl.type = ATH9K_HTC_NORMAL;
tx_hdr.data_type = ATH9K_HTC_NORMAL;
}
if (ieee80211_is_data(fc)) {
qc = ieee80211_get_qos_ctl(hdr);
tx_hdr.tidno = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
}
/* Check for RTS protection */
if (priv->hw->wiphy->rts_threshold != (u32) -1)
if (skb->len > priv->hw->wiphy->rts_threshold)
tx_hdr.flags |= ATH9K_HTC_TX_RTSCTS;
/* CTS-to-self */
if (!(tx_hdr.flags & ATH9K_HTC_TX_RTSCTS) &&
(priv->op_flags & OP_PROTECT_ENABLE))
tx_hdr.flags |= ATH9K_HTC_TX_CTSONLY;
tx_hdr.key_type = ath9k_cmn_get_hw_crypto_keytype(skb);
if (tx_hdr.key_type == ATH9K_KEY_TYPE_CLEAR)
tx_hdr.keyix = (u8) ATH9K_TXKEYIX_INVALID;
else
tx_hdr.keyix = tx_info->control.hw_key->hw_key_idx;
tx_fhdr = skb_push(skb, sizeof(tx_hdr));
memcpy(tx_fhdr, (u8 *) &tx_hdr, sizeof(tx_hdr));
qnum = skb_get_queue_mapping(skb);
hw_qnum = get_hw_qnum(qnum, priv->hwq_map);
switch (hw_qnum) {
case 0:
epid = priv->data_be_ep;
break;
case 2:
epid = priv->data_vi_ep;
break;
case 3:
epid = priv->data_vo_ep;
break;
case 1:
default:
epid = priv->data_bk_ep;
break;
}
} else {
struct tx_mgmt_hdr mgmt_hdr;
memset(&mgmt_hdr, 0, sizeof(struct tx_mgmt_hdr));
tx_ctl.type = ATH9K_HTC_NORMAL;
mgmt_hdr.node_idx = sta_idx;
mgmt_hdr.vif_idx = avp->index;
mgmt_hdr.tidno = 0;
mgmt_hdr.flags = 0;
mgmt_hdr.key_type = ath9k_cmn_get_hw_crypto_keytype(skb);
if (mgmt_hdr.key_type == ATH9K_KEY_TYPE_CLEAR)
mgmt_hdr.keyix = (u8) ATH9K_TXKEYIX_INVALID;
else
mgmt_hdr.keyix = tx_info->control.hw_key->hw_key_idx;
tx_fhdr = skb_push(skb, sizeof(mgmt_hdr));
memcpy(tx_fhdr, (u8 *) &mgmt_hdr, sizeof(mgmt_hdr));
epid = priv->mgmt_ep;
}
return htc_send(priv->htc, skb, epid, &tx_ctl);
}
void ath9k_tx_tasklet(unsigned long data)
{
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)data;
struct ieee80211_sta *sta;
struct ieee80211_hdr *hdr;
struct ieee80211_tx_info *tx_info;
struct sk_buff *skb = NULL;
__le16 fc;
while ((skb = skb_dequeue(&priv->tx_queue)) != NULL) {
hdr = (struct ieee80211_hdr *) skb->data;
fc = hdr->frame_control;
tx_info = IEEE80211_SKB_CB(skb);
sta = tx_info->control.sta;
rcu_read_lock();
if (sta && conf_is_ht(&priv->hw->conf) &&
(priv->op_flags & OP_TXAGGR)
&& !(skb->protocol == cpu_to_be16(ETH_P_PAE))) {
if (ieee80211_is_data_qos(fc)) {
u8 *qc, tid;
struct ath9k_htc_sta *ista;
qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & 0xf;
ista = (struct ath9k_htc_sta *)sta->drv_priv;
if ((tid < ATH9K_HTC_MAX_TID) &&
ista->tid_state[tid] == AGGR_STOP) {
ieee80211_start_tx_ba_session(sta, tid);
ista->tid_state[tid] = AGGR_PROGRESS;
}
}
}
rcu_read_unlock();
memset(&tx_info->status, 0, sizeof(tx_info->status));
ieee80211_tx_status(priv->hw, skb);
}
}
void ath9k_htc_txep(void *drv_priv, struct sk_buff *skb,
enum htc_endpoint_id ep_id, bool txok)
{
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) drv_priv;
struct ieee80211_tx_info *tx_info;
if (!skb)
return;
if (ep_id == priv->mgmt_ep)
skb_pull(skb, sizeof(struct tx_mgmt_hdr));
else
/* TODO: Check for cab/uapsd/data */
skb_pull(skb, sizeof(struct tx_frame_hdr));
tx_info = IEEE80211_SKB_CB(skb);
if (txok)
tx_info->flags |= IEEE80211_TX_STAT_ACK;
skb_queue_tail(&priv->tx_queue, skb);
tasklet_schedule(&priv->tx_tasklet);
}
int ath9k_tx_init(struct ath9k_htc_priv *priv)
{
skb_queue_head_init(&priv->tx_queue);
return 0;
}
void ath9k_tx_cleanup(struct ath9k_htc_priv *priv)
{
}
bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv,
enum ath9k_tx_queue_subtype subtype)
{
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_tx_queue_info qi;
int qnum;
memset(&qi, 0, sizeof(qi));
qi.tqi_subtype = subtype;
qi.tqi_aifs = ATH9K_TXQ_USEDEFAULT;
qi.tqi_cwmin = ATH9K_TXQ_USEDEFAULT;
qi.tqi_cwmax = ATH9K_TXQ_USEDEFAULT;
qi.tqi_physCompBuf = 0;
qi.tqi_qflags = TXQ_FLAG_TXEOLINT_ENABLE | TXQ_FLAG_TXDESCINT_ENABLE;
qnum = ath9k_hw_setuptxqueue(priv->ah, ATH9K_TX_QUEUE_DATA, &qi);
if (qnum == -1)
return false;
if (qnum >= ARRAY_SIZE(priv->hwq_map)) {
ath_print(common, ATH_DBG_FATAL,
"qnum %u out of range, max %u!\n",
qnum, (unsigned int)ARRAY_SIZE(priv->hwq_map));
ath9k_hw_releasetxqueue(ah, qnum);
return false;
}
priv->hwq_map[subtype] = qnum;
return true;
}
/******/
/* RX */
/******/
void ath9k_host_rx_init(struct ath9k_htc_priv *priv)
{
ath9k_hw_rxena(priv->ah);
ath9k_cmn_opmode_init(priv->hw, priv->ah, priv->rxfilter);
ath9k_hw_startpcureceive(priv->ah);
priv->rx.last_rssi = ATH_RSSI_DUMMY_MARKER;
}
static void ath9k_process_rate(struct ieee80211_hw *hw,
struct ieee80211_rx_status *rxs,
u8 rx_rate, u8 rs_flags)
{
struct ieee80211_supported_band *sband;
enum ieee80211_band band;
unsigned int i = 0;
if (rx_rate & 0x80) {
/* HT rate */
rxs->flag |= RX_FLAG_HT;
if (rs_flags & ATH9K_RX_2040)
rxs->flag |= RX_FLAG_40MHZ;
if (rs_flags & ATH9K_RX_GI)
rxs->flag |= RX_FLAG_SHORT_GI;
rxs->rate_idx = rx_rate & 0x7f;
return;
}
band = hw->conf.channel->band;
sband = hw->wiphy->bands[band];
for (i = 0; i < sband->n_bitrates; i++) {
if (sband->bitrates[i].hw_value == rx_rate) {
rxs->rate_idx = i;
return;
}
if (sband->bitrates[i].hw_value_short == rx_rate) {
rxs->rate_idx = i;
rxs->flag |= RX_FLAG_SHORTPRE;
return;
}
}
}
static bool ath9k_rx_prepare(struct ath9k_htc_priv *priv,
struct ath9k_htc_rxbuf *rxbuf,
struct ieee80211_rx_status *rx_status)
{
struct ieee80211_hdr *hdr;
struct ieee80211_hw *hw = priv->hw;
struct sk_buff *skb = rxbuf->skb;
struct ath_common *common = ath9k_hw_common(priv->ah);
int hdrlen, padpos, padsize;
int last_rssi = ATH_RSSI_DUMMY_MARKER;
__le16 fc;
hdr = (struct ieee80211_hdr *)skb->data;
fc = hdr->frame_control;
hdrlen = ieee80211_get_hdrlen_from_skb(skb);
padpos = ath9k_cmn_padpos(fc);
padsize = padpos & 3;
if (padsize && skb->len >= padpos+padsize) {
memmove(skb->data + padsize, skb->data, padpos);
skb_pull(skb, padsize);
}
memset(rx_status, 0, sizeof(struct ieee80211_rx_status));
if (rxbuf->rxstatus.rs_status != 0) {
if (rxbuf->rxstatus.rs_status & ATH9K_RXERR_CRC)
rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
if (rxbuf->rxstatus.rs_status & ATH9K_RXERR_PHY)
goto rx_next;
if (rxbuf->rxstatus.rs_status & ATH9K_RXERR_DECRYPT) {
/* FIXME */
} else if (rxbuf->rxstatus.rs_status & ATH9K_RXERR_MIC) {
if (ieee80211_is_ctl(fc))
/*
* Sometimes, we get invalid
* MIC failures on valid control frames.
* Remove these mic errors.
*/
rxbuf->rxstatus.rs_status &= ~ATH9K_RXERR_MIC;
else
rx_status->flag |= RX_FLAG_MMIC_ERROR;
}
/*
* Reject error frames with the exception of
* decryption and MIC failures. For monitor mode,
* we also ignore the CRC error.
*/
if (priv->ah->opmode == NL80211_IFTYPE_MONITOR) {
if (rxbuf->rxstatus.rs_status &
~(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_MIC |
ATH9K_RXERR_CRC))
goto rx_next;
} else {
if (rxbuf->rxstatus.rs_status &
~(ATH9K_RXERR_DECRYPT | ATH9K_RXERR_MIC)) {
goto rx_next;
}
}
}
if (!(rxbuf->rxstatus.rs_status & ATH9K_RXERR_DECRYPT)) {
u8 keyix;
keyix = rxbuf->rxstatus.rs_keyix;
if (keyix != ATH9K_RXKEYIX_INVALID) {
rx_status->flag |= RX_FLAG_DECRYPTED;
} else if (ieee80211_has_protected(fc) &&
skb->len >= hdrlen + 4) {
keyix = skb->data[hdrlen + 3] >> 6;
if (test_bit(keyix, common->keymap))
rx_status->flag |= RX_FLAG_DECRYPTED;
}
}
ath9k_process_rate(hw, rx_status, rxbuf->rxstatus.rs_rate,
rxbuf->rxstatus.rs_flags);
if (priv->op_flags & OP_ASSOCIATED) {
if (rxbuf->rxstatus.rs_rssi != ATH9K_RSSI_BAD &&
!rxbuf->rxstatus.rs_moreaggr)
ATH_RSSI_LPF(priv->rx.last_rssi,
rxbuf->rxstatus.rs_rssi);
last_rssi = priv->rx.last_rssi;
if (likely(last_rssi != ATH_RSSI_DUMMY_MARKER))
rxbuf->rxstatus.rs_rssi = ATH_EP_RND(last_rssi,
ATH_RSSI_EP_MULTIPLIER);
if (rxbuf->rxstatus.rs_rssi < 0)
rxbuf->rxstatus.rs_rssi = 0;
if (ieee80211_is_beacon(fc))
priv->ah->stats.avgbrssi = rxbuf->rxstatus.rs_rssi;
}
rx_status->mactime = rxbuf->rxstatus.rs_tstamp;
rx_status->band = hw->conf.channel->band;
rx_status->freq = hw->conf.channel->center_freq;
rx_status->signal = rxbuf->rxstatus.rs_rssi + ATH_DEFAULT_NOISE_FLOOR;
rx_status->antenna = rxbuf->rxstatus.rs_antenna;
rx_status->flag |= RX_FLAG_TSFT;
return true;
rx_next:
return false;
}
/*
* FIXME: Handle FLUSH later on.
*/
void ath9k_rx_tasklet(unsigned long data)
{
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)data;
struct ath9k_htc_rxbuf *rxbuf = NULL, *tmp_buf = NULL;
struct ieee80211_rx_status rx_status;
struct sk_buff *skb;
unsigned long flags;
do {
spin_lock_irqsave(&priv->rx.rxbuflock, flags);
list_for_each_entry(tmp_buf, &priv->rx.rxbuf, list) {
if (tmp_buf->in_process) {
rxbuf = tmp_buf;
break;
}
}
if (rxbuf == NULL) {
spin_unlock_irqrestore(&priv->rx.rxbuflock, flags);
break;
}
if (!rxbuf->skb)
goto requeue;
if (!ath9k_rx_prepare(priv, rxbuf, &rx_status)) {
dev_kfree_skb_any(rxbuf->skb);
goto requeue;
}
memcpy(IEEE80211_SKB_RXCB(rxbuf->skb), &rx_status,
sizeof(struct ieee80211_rx_status));
skb = rxbuf->skb;
spin_unlock_irqrestore(&priv->rx.rxbuflock, flags);
ieee80211_rx(priv->hw, skb);
spin_lock_irqsave(&priv->rx.rxbuflock, flags);
requeue:
rxbuf->in_process = false;
rxbuf->skb = NULL;
list_move_tail(&rxbuf->list, &priv->rx.rxbuf);
rxbuf = NULL;
spin_unlock_irqrestore(&priv->rx.rxbuflock, flags);
} while (1);
}
void ath9k_htc_rxep(void *drv_priv, struct sk_buff *skb,
enum htc_endpoint_id ep_id)
{
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)drv_priv;
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_rxbuf *rxbuf = NULL, *tmp_buf = NULL;
struct ath_htc_rx_status *rxstatus;
u32 len = 0;
spin_lock(&priv->rx.rxbuflock);
list_for_each_entry(tmp_buf, &priv->rx.rxbuf, list) {
if (!tmp_buf->in_process) {
rxbuf = tmp_buf;
break;
}
}
spin_unlock(&priv->rx.rxbuflock);
if (rxbuf == NULL) {
ath_print(common, ATH_DBG_ANY,
"No free RX buffer\n");
goto err;
}
len = skb->len;
if (len <= HTC_RX_FRAME_HEADER_SIZE) {
ath_print(common, ATH_DBG_FATAL,
"Corrupted RX frame, dropping\n");
goto err;
}
rxstatus = (struct ath_htc_rx_status *)skb->data;
rxstatus->rs_tstamp = be64_to_cpu(rxstatus->rs_tstamp);
rxstatus->rs_datalen = be16_to_cpu(rxstatus->rs_datalen);
rxstatus->evm0 = be32_to_cpu(rxstatus->evm0);
rxstatus->evm1 = be32_to_cpu(rxstatus->evm1);
rxstatus->evm2 = be32_to_cpu(rxstatus->evm2);
if (rxstatus->rs_datalen - (len - HTC_RX_FRAME_HEADER_SIZE) != 0) {
ath_print(common, ATH_DBG_FATAL,
"Corrupted RX data len, dropping "
"(epid: %d, dlen: %d, skblen: %d)\n",
ep_id, rxstatus->rs_datalen, len);
goto err;
}
spin_lock(&priv->rx.rxbuflock);
memcpy(&rxbuf->rxstatus, rxstatus, HTC_RX_FRAME_HEADER_SIZE);
skb_pull(skb, HTC_RX_FRAME_HEADER_SIZE);
skb->len = rxstatus->rs_datalen;
rxbuf->skb = skb;
rxbuf->in_process = true;
spin_unlock(&priv->rx.rxbuflock);
tasklet_schedule(&priv->rx_tasklet);
return;
err:
dev_kfree_skb_any(skb);
return;
}
/* FIXME: Locking for cleanup/init */
void ath9k_rx_cleanup(struct ath9k_htc_priv *priv)
{
struct ath9k_htc_rxbuf *rxbuf, *tbuf;
list_for_each_entry_safe(rxbuf, tbuf, &priv->rx.rxbuf, list) {
list_del(&rxbuf->list);
if (rxbuf->skb)
dev_kfree_skb_any(rxbuf->skb);
kfree(rxbuf);
}
}
int ath9k_rx_init(struct ath9k_htc_priv *priv)
{
struct ath_hw *ah = priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_htc_rxbuf *rxbuf;
int i = 0;
INIT_LIST_HEAD(&priv->rx.rxbuf);
spin_lock_init(&priv->rx.rxbuflock);
for (i = 0; i < ATH9K_HTC_RXBUF; i++) {
rxbuf = kzalloc(sizeof(struct ath9k_htc_rxbuf), GFP_KERNEL);
if (rxbuf == NULL) {
ath_print(common, ATH_DBG_FATAL,
"Unable to allocate RX buffers\n");
goto err;
}
list_add_tail(&rxbuf->list, &priv->rx.rxbuf);
}
return 0;
err:
ath9k_rx_cleanup(priv);
return -ENOMEM;
}
drivers/net/wireless/ath/ath9k/htc_hst.c 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 "htc.h"
static int htc_issue_send(struct htc_target *target, struct sk_buff* skb,
u16 len, u8 flags, u8 epid,
struct ath9k_htc_tx_ctl *tx_ctl)
{
struct htc_frame_hdr *hdr;
struct htc_endpoint *endpoint = &target->endpoint[epid];
int status;
hdr = (struct htc_frame_hdr *)
skb_push(skb, sizeof(struct htc_frame_hdr));
hdr->endpoint_id = epid;
hdr->flags = flags;
hdr->payload_len = cpu_to_be16(len);
status = target->hif->send(target->hif_dev, endpoint->ul_pipeid, skb,
tx_ctl);
return status;
}
static struct htc_endpoint *get_next_avail_ep(struct htc_endpoint *endpoint)
{
enum htc_endpoint_id avail_epid;
for (avail_epid = ENDPOINT_MAX; avail_epid > ENDPOINT0; avail_epid--)
if (endpoint[avail_epid].service_id == 0)
return &endpoint[avail_epid];
return NULL;
}
static u8 service_to_ulpipe(u16 service_id)
{
switch (service_id) {
case WMI_CONTROL_SVC:
return 4;
case WMI_BEACON_SVC:
case WMI_CAB_SVC:
case WMI_UAPSD_SVC:
case WMI_MGMT_SVC:
case WMI_DATA_VO_SVC:
case WMI_DATA_VI_SVC:
case WMI_DATA_BE_SVC:
case WMI_DATA_BK_SVC:
return 1;
default:
return 0;
}
}
static u8 service_to_dlpipe(u16 service_id)
{
switch (service_id) {
case WMI_CONTROL_SVC:
return 3;
case WMI_BEACON_SVC:
case WMI_CAB_SVC:
case WMI_UAPSD_SVC:
case WMI_MGMT_SVC:
case WMI_DATA_VO_SVC:
case WMI_DATA_VI_SVC:
case WMI_DATA_BE_SVC:
case WMI_DATA_BK_SVC:
return 2;
default:
return 0;
}
}
static void htc_process_target_rdy(struct htc_target *target,
void *buf)
{
struct htc_endpoint *endpoint;
struct htc_ready_msg *htc_ready_msg = (struct htc_ready_msg *) buf;
target->credits = be16_to_cpu(htc_ready_msg->credits);
target->credit_size = be16_to_cpu(htc_ready_msg->credit_size);
endpoint = &target->endpoint[ENDPOINT0];
endpoint->service_id = HTC_CTRL_RSVD_SVC;
endpoint->max_msglen = HTC_MAX_CONTROL_MESSAGE_LENGTH;
complete(&target->target_wait);
}
static void htc_process_conn_rsp(struct htc_target *target,
struct htc_frame_hdr *htc_hdr)
{
struct htc_conn_svc_rspmsg *svc_rspmsg;
struct htc_endpoint *endpoint, *tmp_endpoint = NULL;
u16 service_id;
u16 max_msglen;
enum htc_endpoint_id epid, tepid;
svc_rspmsg = (struct htc_conn_svc_rspmsg *)
((void *) htc_hdr + sizeof(struct htc_frame_hdr));
if (svc_rspmsg->status == HTC_SERVICE_SUCCESS) {
epid = svc_rspmsg->endpoint_id;
service_id = be16_to_cpu(svc_rspmsg->service_id);
max_msglen = be16_to_cpu(svc_rspmsg->max_msg_len);
endpoint = &target->endpoint[epid];
for (tepid = ENDPOINT_MAX; tepid > ENDPOINT0; tepid--) {
tmp_endpoint = &target->endpoint[tepid];
if (tmp_endpoint->service_id == service_id) {
tmp_endpoint->service_id = 0;
break;
}
}
if (!tmp_endpoint)
return;
endpoint->service_id = service_id;
endpoint->max_txqdepth = tmp_endpoint->max_txqdepth;
endpoint->ep_callbacks = tmp_endpoint->ep_callbacks;
endpoint->ul_pipeid = tmp_endpoint->ul_pipeid;
endpoint->dl_pipeid = tmp_endpoint->dl_pipeid;
endpoint->max_msglen = max_msglen;
target->conn_rsp_epid = epid;
complete(&target->cmd_wait);
} else {
target->conn_rsp_epid = ENDPOINT_UNUSED;
}
}
static int htc_config_pipe_credits(struct htc_target *target)
{
struct sk_buff *skb;
struct htc_config_pipe_msg *cp_msg;
int ret, time_left;
skb = dev_alloc_skb(50 + sizeof(struct htc_frame_hdr));
if (!skb) {
dev_err(target->dev, "failed to allocate send buffer\n");
return -ENOMEM;
}
skb_reserve(skb, sizeof(struct htc_frame_hdr));
cp_msg = (struct htc_config_pipe_msg *)
skb_put(skb, sizeof(struct htc_config_pipe_msg));
cp_msg->message_id = cpu_to_be16(HTC_MSG_CONFIG_PIPE_ID);
cp_msg->pipe_id = USB_WLAN_TX_PIPE;
cp_msg->credits = 28;
target->htc_flags |= HTC_OP_CONFIG_PIPE_CREDITS;
ret = htc_issue_send(target, skb, skb->len, 0, ENDPOINT0, NULL);
if (ret)
goto err;
time_left = wait_for_completion_timeout(&target->cmd_wait, HZ);
if (!time_left) {
dev_err(target->dev, "HTC credit config timeout\n");
return -ETIMEDOUT;
}
return 0;
err:
dev_kfree_skb(skb);
return -EINVAL;
}
static int htc_setup_complete(struct htc_target *target)
{
struct sk_buff *skb;
struct htc_comp_msg *comp_msg;
int ret = 0, time_left;
skb = dev_alloc_skb(50 + sizeof(struct htc_frame_hdr));
if (!skb) {
dev_err(target->dev, "failed to allocate send buffer\n");
return -ENOMEM;
}
skb_reserve(skb, sizeof(struct htc_frame_hdr));
comp_msg = (struct htc_comp_msg *)
skb_put(skb, sizeof(struct htc_comp_msg));
comp_msg->msg_id = cpu_to_be16(HTC_MSG_SETUP_COMPLETE_ID);
target->htc_flags |= HTC_OP_START_WAIT;
ret = htc_issue_send(target, skb, skb->len, 0, ENDPOINT0, NULL);
if (ret)
goto err;
time_left = wait_for_completion_timeout(&target->cmd_wait, HZ);
if (!time_left) {
dev_err(target->dev, "HTC start timeout\n");
return -ETIMEDOUT;
}
return 0;
err:
dev_kfree_skb(skb);
return -EINVAL;
}
/* HTC APIs */
int htc_init(struct htc_target *target)
{
int ret;
ret = htc_config_pipe_credits(target);
if (ret)
return ret;
return htc_setup_complete(target);
}
int htc_connect_service(struct htc_target *target,
struct htc_service_connreq *service_connreq,
enum htc_endpoint_id *conn_rsp_epid)
{
struct sk_buff *skb;
struct htc_endpoint *endpoint;
struct htc_conn_svc_msg *conn_msg;
int ret, time_left;
/* Find an available endpoint */
endpoint = get_next_avail_ep(target->endpoint);
if (!endpoint) {
dev_err(target->dev, "Endpoint is not available for"
"service %d\n", service_connreq->service_id);
return -EINVAL;
}
endpoint->service_id = service_connreq->service_id;
endpoint->max_txqdepth = service_connreq->max_send_qdepth;
endpoint->ul_pipeid = service_to_ulpipe(service_connreq->service_id);
endpoint->dl_pipeid = service_to_dlpipe(service_connreq->service_id);
endpoint->ep_callbacks = service_connreq->ep_callbacks;
skb = dev_alloc_skb(sizeof(struct htc_conn_svc_msg) +
sizeof(struct htc_frame_hdr));
if (!skb) {
dev_err(target->dev, "Failed to allocate buf to send"
"service connect req\n");
return -ENOMEM;
}
skb_reserve(skb, sizeof(struct htc_frame_hdr));
conn_msg = (struct htc_conn_svc_msg *)
skb_put(skb, sizeof(struct htc_conn_svc_msg));
conn_msg->service_id = cpu_to_be16(service_connreq->service_id);
conn_msg->msg_id = cpu_to_be16(HTC_MSG_CONNECT_SERVICE_ID);
conn_msg->con_flags = cpu_to_be16(service_connreq->con_flags);
conn_msg->dl_pipeid = endpoint->dl_pipeid;
conn_msg->ul_pipeid = endpoint->ul_pipeid;
ret = htc_issue_send(target, skb, skb->len, 0, ENDPOINT0, NULL);
if (ret)
goto err;
time_left = wait_for_completion_timeout(&target->cmd_wait, HZ);
if (!time_left) {
dev_err(target->dev, "Service connection timeout for: %d\n",
service_connreq->service_id);
return -ETIMEDOUT;
}
*conn_rsp_epid = target->conn_rsp_epid;
return 0;
err:
dev_kfree_skb(skb);
return ret;
}
int htc_send(struct htc_target *target, struct sk_buff *skb,
enum htc_endpoint_id epid, struct ath9k_htc_tx_ctl *tx_ctl)
{
return htc_issue_send(target, skb, skb->len, 0, epid, tx_ctl);
}
void htc_stop(struct htc_target *target)
{
enum htc_endpoint_id epid;
struct htc_endpoint *endpoint;
for (epid = ENDPOINT0; epid <= ENDPOINT_MAX; epid++) {
endpoint = &target->endpoint[epid];
if (endpoint->service_id != 0)
target->hif->stop(target->hif_dev, endpoint->ul_pipeid);
}
}
void htc_start(struct htc_target *target)
{
enum htc_endpoint_id epid;
struct htc_endpoint *endpoint;
for (epid = ENDPOINT0; epid <= ENDPOINT_MAX; epid++) {
endpoint = &target->endpoint[epid];
if (endpoint->service_id != 0)
target->hif->start(target->hif_dev,
endpoint->ul_pipeid);
}
}
void ath9k_htc_txcompletion_cb(struct htc_target *htc_handle,
struct sk_buff *skb, bool txok)
{
struct htc_endpoint *endpoint;
struct htc_frame_hdr *htc_hdr;
if (htc_handle->htc_flags & HTC_OP_CONFIG_PIPE_CREDITS) {
complete(&htc_handle->cmd_wait);
htc_handle->htc_flags &= ~HTC_OP_CONFIG_PIPE_CREDITS;
}
if (htc_handle->htc_flags & HTC_OP_START_WAIT) {
complete(&htc_handle->cmd_wait);
htc_handle->htc_flags &= ~HTC_OP_START_WAIT;
}
if (skb) {
htc_hdr = (struct htc_frame_hdr *) skb->data;
endpoint = &htc_handle->endpoint[htc_hdr->endpoint_id];
skb_pull(skb, sizeof(struct htc_frame_hdr));
if (endpoint->ep_callbacks.tx) {
endpoint->ep_callbacks.tx(htc_handle->drv_priv, skb,
htc_hdr->endpoint_id, txok);
}
}
}
/*
* HTC Messages are handled directly here and the obtained SKB
* is freed.
*
* Sevice messages (Data, WMI) passed to the corresponding
* endpoint RX handlers, which have to free the SKB.
*/
void ath9k_htc_rx_msg(struct htc_target *htc_handle,
struct sk_buff *skb, u32 len, u8 pipe_id)
{
struct htc_frame_hdr *htc_hdr;
enum htc_endpoint_id epid;
struct htc_endpoint *endpoint;
u16 *msg_id;
if (!htc_handle || !skb)
return;
htc_hdr = (struct htc_frame_hdr *) skb->data;
epid = htc_hdr->endpoint_id;
if (epid >= ENDPOINT_MAX) {
dev_kfree_skb_any(skb);
return;
}
if (epid == ENDPOINT0) {
/* Handle trailer */
if (htc_hdr->flags & HTC_FLAGS_RECV_TRAILER) {
if (be32_to_cpu(*(u32 *) skb->data) == 0x00C60000)
/* Move past the Watchdog pattern */
htc_hdr = (struct htc_frame_hdr *) skb->data + 4;
}
/* Get the message ID */
msg_id = (u16 *) ((void *) htc_hdr +
sizeof(struct htc_frame_hdr));
/* Now process HTC messages */
switch (be16_to_cpu(*msg_id)) {
case HTC_MSG_READY_ID:
htc_process_target_rdy(htc_handle, htc_hdr);
break;
case HTC_MSG_CONNECT_SERVICE_RESPONSE_ID:
htc_process_conn_rsp(htc_handle, htc_hdr);
break;
default:
break;
}
dev_kfree_skb_any(skb);
} else {
if (htc_hdr->flags & HTC_FLAGS_RECV_TRAILER)
skb_trim(skb, len - htc_hdr->control[0]);
skb_pull(skb, sizeof(struct htc_frame_hdr));
endpoint = &htc_handle->endpoint[epid];
if (endpoint->ep_callbacks.rx)
endpoint->ep_callbacks.rx(endpoint->ep_callbacks.priv,
skb, epid);
}
}
struct htc_target *ath9k_htc_hw_alloc(void *hif_handle)
{
struct htc_target *target;
target = kzalloc(sizeof(struct htc_target), GFP_KERNEL);
if (!target)
printk(KERN_ERR "Unable to allocate memory for"
"target device\n");
return target;
}
void ath9k_htc_hw_free(struct htc_target *htc)
{
kfree(htc);
}
int ath9k_htc_hw_init(struct ath9k_htc_hif *hif, struct htc_target *target,
void *hif_handle, struct device *dev, u16 devid,
enum ath9k_hif_transports transport)
{
struct htc_endpoint *endpoint;
int err = 0;
init_completion(&target->target_wait);
init_completion(&target->cmd_wait);
target->hif = hif;
target->hif_dev = hif_handle;
target->dev = dev;
/* Assign control endpoint pipe IDs */
endpoint = &target->endpoint[ENDPOINT0];
endpoint->ul_pipeid = hif->control_ul_pipe;
endpoint->dl_pipeid = hif->control_dl_pipe;
err = ath9k_htc_probe_device(target, dev, devid);
if (err) {
printk(KERN_ERR "Failed to initialize the device\n");
return -ENODEV;
}
return 0;
}
void ath9k_htc_hw_deinit(struct htc_target *target, bool hot_unplug)
{
if (target)
ath9k_htc_disconnect_device(target, hot_unplug);
}
drivers/net/wireless/ath/ath9k/htc_hst.h 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 HTC_HST_H
#define HTC_HST_H
struct ath9k_htc_priv;
struct htc_target;
struct ath9k_htc_tx_ctl;
enum ath9k_hif_transports {
ATH9K_HIF_USB,
};
struct ath9k_htc_hif {
struct list_head list;
const enum ath9k_hif_transports transport;
const char *name;
u8 control_dl_pipe;
u8 control_ul_pipe;
void (*start) (void *hif_handle, u8 pipe);
void (*stop) (void *hif_handle, u8 pipe);
int (*send) (void *hif_handle, u8 pipe, struct sk_buff *buf,
struct ath9k_htc_tx_ctl *tx_ctl);
};
enum htc_endpoint_id {
ENDPOINT_UNUSED = -1,
ENDPOINT0 = 0,
ENDPOINT1 = 1,
ENDPOINT2 = 2,
ENDPOINT3 = 3,
ENDPOINT4 = 4,
ENDPOINT5 = 5,
ENDPOINT6 = 6,
ENDPOINT7 = 7,
ENDPOINT8 = 8,
ENDPOINT_MAX = 22
};
/* Htc frame hdr flags */
#define HTC_FLAGS_RECV_TRAILER (1 << 1)
struct htc_frame_hdr {
u8 endpoint_id;
u8 flags;
u16 payload_len;
u8 control[4];
} __packed;
struct htc_ready_msg {
u16 message_id;
u16 credits;
u16 credit_size;
u8 max_endpoints;
u8 pad;
} __packed;
struct htc_config_pipe_msg {
u16 message_id;
u8 pipe_id;
u8 credits;
} __packed;
struct htc_packet {
void *pktcontext;
u8 *buf;
u8 *buf_payload;
u32 buflen;
u32 payload_len;
int endpoint;
int status;
void *context;
u32 reserved;
};
struct htc_ep_callbacks {
void *priv;
void (*tx) (void *, struct sk_buff *, enum htc_endpoint_id, bool txok);
void (*rx) (void *, struct sk_buff *, enum htc_endpoint_id);
};
#define HTC_TX_QUEUE_SIZE 256
struct htc_txq {
struct sk_buff *buf[HTC_TX_QUEUE_SIZE];
u32 txqdepth;
u16 txbuf_cnt;
u16 txq_head;
u16 txq_tail;
};
struct htc_endpoint {
u16 service_id;
struct htc_ep_callbacks ep_callbacks;
struct htc_txq htc_txq;
u32 max_txqdepth;
int max_msglen;
u8 ul_pipeid;
u8 dl_pipeid;
};
#define HTC_MAX_CONTROL_MESSAGE_LENGTH 255
#define HTC_CONTROL_BUFFER_SIZE \
(HTC_MAX_CONTROL_MESSAGE_LENGTH + sizeof(struct htc_frame_hdr))
#define NUM_CONTROL_BUFFERS 8
#define HST_ENDPOINT_MAX 8
struct htc_control_buf {
struct htc_packet htc_pkt;
u8 buf[HTC_CONTROL_BUFFER_SIZE];
};
#define HTC_OP_START_WAIT BIT(0)
#define HTC_OP_CONFIG_PIPE_CREDITS BIT(1)
struct htc_target {
void *hif_dev;
struct ath9k_htc_priv *drv_priv;
struct device *dev;
struct ath9k_htc_hif *hif;
struct htc_endpoint endpoint[HST_ENDPOINT_MAX];
struct completion target_wait;
struct completion cmd_wait;
struct list_head list;
enum htc_endpoint_id conn_rsp_epid;
u16 credits;
u16 credit_size;
u8 htc_flags;
};
enum htc_msg_id {
HTC_MSG_READY_ID = 1,
HTC_MSG_CONNECT_SERVICE_ID,
HTC_MSG_CONNECT_SERVICE_RESPONSE_ID,
HTC_MSG_SETUP_COMPLETE_ID,
HTC_MSG_CONFIG_PIPE_ID,
HTC_MSG_CONFIG_PIPE_RESPONSE_ID,
};
struct htc_service_connreq {
u16 service_id;
u16 con_flags;
u32 max_send_qdepth;
struct htc_ep_callbacks ep_callbacks;
};
/* Current service IDs */
enum htc_service_group_ids{
RSVD_SERVICE_GROUP = 0,
WMI_SERVICE_GROUP = 1,
HTC_SERVICE_GROUP_LAST = 255
};
#define MAKE_SERVICE_ID(group, index) \
(int)(((int)group << 8) | (int)(index))
/* NOTE: service ID of 0x0000 is reserved and should never be used */
#define HTC_CTRL_RSVD_SVC MAKE_SERVICE_ID(RSVD_SERVICE_GROUP, 1)
#define HTC_LOOPBACK_RSVD_SVC MAKE_SERVICE_ID(RSVD_SERVICE_GROUP, 2)
#define WMI_CONTROL_SVC MAKE_SERVICE_ID(WMI_SERVICE_GROUP, 0)
#define WMI_BEACON_SVC MAKE_SERVICE_ID(WMI_SERVICE_GROUP, 1)
#define WMI_CAB_SVC MAKE_SERVICE_ID(WMI_SERVICE_GROUP, 2)
#define WMI_UAPSD_SVC MAKE_SERVICE_ID(WMI_SERVICE_GROUP, 3)
#define WMI_MGMT_SVC MAKE_SERVICE_ID(WMI_SERVICE_GROUP, 4)
#define WMI_DATA_VO_SVC MAKE_SERVICE_ID(WMI_SERVICE_GROUP, 5)
#define WMI_DATA_VI_SVC MAKE_SERVICE_ID(WMI_SERVICE_GROUP, 6)
#define WMI_DATA_BE_SVC MAKE_SERVICE_ID(WMI_SERVICE_GROUP, 7)
#define WMI_DATA_BK_SVC MAKE_SERVICE_ID(WMI_SERVICE_GROUP, 8)
struct htc_conn_svc_msg {
u16 msg_id;
u16 service_id;
u16 con_flags;
u8 dl_pipeid;
u8 ul_pipeid;
u8 svc_meta_len;
u8 pad;
} __packed;
/* connect response status codes */
#define HTC_SERVICE_SUCCESS 0
#define HTC_SERVICE_NOT_FOUND 1
#define HTC_SERVICE_FAILED 2
#define HTC_SERVICE_NO_RESOURCES 3
#define HTC_SERVICE_NO_MORE_EP 4
struct htc_conn_svc_rspmsg {
u16 msg_id;
u16 service_id;
u8 status;
u8 endpoint_id;
u16 max_msg_len;
u8 svc_meta_len;
u8 pad;
} __packed;
struct htc_comp_msg {
u16 msg_id;
} __packed;
int htc_init(struct htc_target *target);
int htc_connect_service(struct htc_target *target,
struct htc_service_connreq *service_connreq,
enum htc_endpoint_id *conn_rsp_eid);
int htc_send(struct htc_target *target, struct sk_buff *skb,
enum htc_endpoint_id eid, struct ath9k_htc_tx_ctl *tx_ctl);
void htc_stop(struct htc_target *target);
void htc_start(struct htc_target *target);
void ath9k_htc_rx_msg(struct htc_target *htc_handle,
struct sk_buff *skb, u32 len, u8 pipe_id);
void ath9k_htc_txcompletion_cb(struct htc_target *htc_handle,
struct sk_buff *skb, bool txok);
struct htc_target *ath9k_htc_hw_alloc(void *hif_handle);
void ath9k_htc_hw_free(struct htc_target *htc);
int ath9k_htc_hw_init(struct ath9k_htc_hif *hif, struct htc_target *target,
void *hif_handle, struct device *dev, u16 devid,
enum ath9k_hif_transports transport);
void ath9k_htc_hw_deinit(struct htc_target *target, bool hot_unplug);
#endif /* HTC_HST_H */
drivers/net/wireless/ath/ath9k/mac.h
View file @ fb9987d0
...@@ -150,6 +150,32 @@ struct ath_rx_status { ...@@ -150,6 +150,32 @@ struct ath_rx_status {
u32 evm2; u32 evm2;
}; };
struct ath_htc_rx_status {
u64 rs_tstamp;
u16 rs_datalen;
u8 rs_status;
u8 rs_phyerr;
int8_t rs_rssi;
int8_t rs_rssi_ctl0;
int8_t rs_rssi_ctl1;
int8_t rs_rssi_ctl2;
int8_t rs_rssi_ext0;
int8_t rs_rssi_ext1;
int8_t rs_rssi_ext2;
u8 rs_keyix;
u8 rs_rate;
u8 rs_antenna;
u8 rs_more;
u8 rs_isaggr;
u8 rs_moreaggr;
u8 rs_num_delims;
u8 rs_flags;
u8 rs_dummy;
u32 evm0;
u32 evm1;
u32 evm2;
};
#define ATH9K_RXERR_CRC 0x01 #define ATH9K_RXERR_CRC 0x01
#define ATH9K_RXERR_PHY 0x02 #define ATH9K_RXERR_PHY 0x02
#define ATH9K_RXERR_FIFO 0x04 #define ATH9K_RXERR_FIFO 0x04
......
drivers/net/wireless/ath/ath9k/wmi.c 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 "htc.h"
static const char *wmi_cmd_to_name(enum wmi_cmd_id wmi_cmd)
{
switch (wmi_cmd) {
case WMI_ECHO_CMDID:
return "WMI_ECHO_CMDID";
case WMI_ACCESS_MEMORY_CMDID:
return "WMI_ACCESS_MEMORY_CMDID";
case WMI_DISABLE_INTR_CMDID:
return "WMI_DISABLE_INTR_CMDID";
case WMI_ENABLE_INTR_CMDID:
return "WMI_ENABLE_INTR_CMDID";
case WMI_RX_LINK_CMDID:
return "WMI_RX_LINK_CMDID";
case WMI_ATH_INIT_CMDID:
return "WMI_ATH_INIT_CMDID";
case WMI_ABORT_TXQ_CMDID:
return "WMI_ABORT_TXQ_CMDID";
case WMI_STOP_TX_DMA_CMDID:
return "WMI_STOP_TX_DMA_CMDID";
case WMI_STOP_DMA_RECV_CMDID:
return "WMI_STOP_DMA_RECV_CMDID";
case WMI_ABORT_TX_DMA_CMDID:
return "WMI_ABORT_TX_DMA_CMDID";
case WMI_DRAIN_TXQ_CMDID:
return "WMI_DRAIN_TXQ_CMDID";
case WMI_DRAIN_TXQ_ALL_CMDID:
return "WMI_DRAIN_TXQ_ALL_CMDID";
case WMI_START_RECV_CMDID:
return "WMI_START_RECV_CMDID";
case WMI_STOP_RECV_CMDID:
return "WMI_STOP_RECV_CMDID";
case WMI_FLUSH_RECV_CMDID:
return "WMI_FLUSH_RECV_CMDID";
case WMI_SET_MODE_CMDID:
return "WMI_SET_MODE_CMDID";
case WMI_RESET_CMDID:
return "WMI_RESET_CMDID";
case WMI_NODE_CREATE_CMDID:
return "WMI_NODE_CREATE_CMDID";
case WMI_NODE_REMOVE_CMDID:
return "WMI_NODE_REMOVE_CMDID";
case WMI_VAP_REMOVE_CMDID:
return "WMI_VAP_REMOVE_CMDID";
case WMI_VAP_CREATE_CMDID:
return "WMI_VAP_CREATE_CMDID";
case WMI_BEACON_UPDATE_CMDID:
return "WMI_BEACON_UPDATE_CMDID";
case WMI_REG_READ_CMDID:
return "WMI_REG_READ_CMDID";
case WMI_REG_WRITE_CMDID:
return "WMI_REG_WRITE_CMDID";
case WMI_RC_STATE_CHANGE_CMDID:
return "WMI_RC_STATE_CHANGE_CMDID";
case WMI_RC_RATE_UPDATE_CMDID:
return "WMI_RC_RATE_UPDATE_CMDID";
case WMI_DEBUG_INFO_CMDID:
return "WMI_DEBUG_INFO_CMDID";
case WMI_HOST_ATTACH:
return "WMI_HOST_ATTACH";
case WMI_TARGET_IC_UPDATE_CMDID:
return "WMI_TARGET_IC_UPDATE_CMDID";
case WMI_TGT_STATS_CMDID:
return "WMI_TGT_STATS_CMDID";
case WMI_TX_AGGR_ENABLE_CMDID:
return "WMI_TX_AGGR_ENABLE_CMDID";
case WMI_TGT_DETACH_CMDID:
return "WMI_TGT_DETACH_CMDID";
case WMI_TGT_TXQ_ENABLE_CMDID:
return "WMI_TGT_TXQ_ENABLE_CMDID";
}
return "Bogus";
}
struct wmi *ath9k_init_wmi(struct ath9k_htc_priv *priv)
{
struct wmi *wmi;
wmi = kzalloc(sizeof(struct wmi), GFP_KERNEL);
if (!wmi)
return NULL;
wmi->drv_priv = priv;
wmi->stopped = false;
mutex_init(&wmi->op_mutex);
init_completion(&wmi->cmd_wait);
return wmi;
}
void ath9k_deinit_wmi(struct ath9k_htc_priv *priv)
{
struct wmi *wmi = priv->wmi;
mutex_lock(&wmi->op_mutex);
wmi->stopped = true;
mutex_unlock(&wmi->op_mutex);
kfree(priv->wmi);
}
void ath9k_wmi_tasklet(unsigned long data)
{
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *)data;
struct ath_common *common = ath9k_hw_common(priv->ah);
struct wmi_cmd_hdr *hdr;
struct wmi_swba *swba_hdr;
enum wmi_event_id event;
struct sk_buff *skb;
void *wmi_event;
unsigned long flags;
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
u32 txrate;
#endif
spin_lock_irqsave(&priv->wmi->wmi_lock, flags);
skb = priv->wmi->wmi_skb;
spin_unlock_irqrestore(&priv->wmi->wmi_lock, flags);
hdr = (struct wmi_cmd_hdr *) skb->data;
event = be16_to_cpu(hdr->command_id);
wmi_event = skb_pull(skb, sizeof(struct wmi_cmd_hdr));
ath_print(common, ATH_DBG_WMI,
"WMI Event: 0x%x\n", event);
switch (event) {
case WMI_TGT_RDY_EVENTID:
break;
case WMI_SWBA_EVENTID:
swba_hdr = (struct wmi_swba *) wmi_event;
ath9k_htc_swba(priv, swba_hdr->beacon_pending);
break;
case WMI_FATAL_EVENTID:
break;
case WMI_TXTO_EVENTID:
break;
case WMI_BMISS_EVENTID:
break;
case WMI_WLAN_TXCOMP_EVENTID:
break;
case WMI_DELBA_EVENTID:
break;
case WMI_TXRATE_EVENTID:
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
txrate = ((struct wmi_event_txrate *)wmi_event)->txrate;
priv->debug.txrate = be32_to_cpu(txrate);
#endif
break;
default:
break;
}
dev_kfree_skb_any(skb);
}
static void ath9k_wmi_rsp_callback(struct wmi *wmi, struct sk_buff *skb)
{
skb_pull(skb, sizeof(struct wmi_cmd_hdr));
if (wmi->cmd_rsp_buf != NULL && wmi->cmd_rsp_len != 0)
memcpy(wmi->cmd_rsp_buf, skb->data, wmi->cmd_rsp_len);
complete(&wmi->cmd_wait);
}
static void ath9k_wmi_ctrl_rx(void *priv, struct sk_buff *skb,
enum htc_endpoint_id epid)
{
struct wmi *wmi = (struct wmi *) priv;
struct wmi_cmd_hdr *hdr;
u16 cmd_id;
if (unlikely(wmi->stopped))
goto free_skb;
hdr = (struct wmi_cmd_hdr *) skb->data;
cmd_id = be16_to_cpu(hdr->command_id);
if (cmd_id & 0x1000) {
spin_lock(&wmi->wmi_lock);
wmi->wmi_skb = skb;
spin_unlock(&wmi->wmi_lock);
tasklet_schedule(&wmi->drv_priv->wmi_tasklet);
return;
}
/* WMI command response */
ath9k_wmi_rsp_callback(wmi, skb);
free_skb:
dev_kfree_skb_any(skb);
}
static void ath9k_wmi_ctrl_tx(void *priv, struct sk_buff *skb,
enum htc_endpoint_id epid, bool txok)
{
dev_kfree_skb_any(skb);
}
int ath9k_wmi_connect(struct htc_target *htc, struct wmi *wmi,
enum htc_endpoint_id *wmi_ctrl_epid)
{
struct htc_service_connreq connect;
int ret;
wmi->htc = htc;
memset(&connect, 0, sizeof(connect));
connect.ep_callbacks.priv = wmi;
connect.ep_callbacks.tx = ath9k_wmi_ctrl_tx;
connect.ep_callbacks.rx = ath9k_wmi_ctrl_rx;
connect.service_id = WMI_CONTROL_SVC;
ret = htc_connect_service(htc, &connect, &wmi->ctrl_epid);
if (ret)
return ret;
*wmi_ctrl_epid = wmi->ctrl_epid;
return 0;
}
static int ath9k_wmi_cmd_issue(struct wmi *wmi,
struct sk_buff *skb,
enum wmi_cmd_id cmd, u16 len)
{
struct wmi_cmd_hdr *hdr;
hdr = (struct wmi_cmd_hdr *) skb_push(skb, sizeof(struct wmi_cmd_hdr));
hdr->command_id = cpu_to_be16(cmd);
hdr->seq_no = cpu_to_be16(++wmi->tx_seq_id);
return htc_send(wmi->htc, skb, wmi->ctrl_epid, NULL);
}
int ath9k_wmi_cmd(struct wmi *wmi, enum wmi_cmd_id cmd_id,
u8 *cmd_buf, u32 cmd_len,
u8 *rsp_buf, u32 rsp_len,
u32 timeout)
{
struct ath_hw *ah = wmi->drv_priv->ah;
struct ath_common *common = ath9k_hw_common(ah);
u16 headroom = sizeof(struct htc_frame_hdr) +
sizeof(struct wmi_cmd_hdr);
struct sk_buff *skb;
u8 *data;
int time_left, ret = 0;
if (!wmi)
return -EINVAL;
skb = dev_alloc_skb(headroom + cmd_len);
if (!skb)
return -ENOMEM;
skb_reserve(skb, headroom);
if (cmd_len != 0 && cmd_buf != NULL) {
data = (u8 *) skb_put(skb, cmd_len);
memcpy(data, cmd_buf, cmd_len);
}
mutex_lock(&wmi->op_mutex);
/* check if wmi stopped flag is set */
if (unlikely(wmi->stopped)) {
ret = -EPROTO;
goto out;
}
/* record the rsp buffer and length */
wmi->cmd_rsp_buf = rsp_buf;
wmi->cmd_rsp_len = rsp_len;
ret = ath9k_wmi_cmd_issue(wmi, skb, cmd_id, cmd_len);
if (ret)
goto out;
time_left = wait_for_completion_timeout(&wmi->cmd_wait, timeout);
if (!time_left) {
ath_print(common, ATH_DBG_WMI,
"Timeout waiting for WMI command: %s\n",
wmi_cmd_to_name(cmd_id));
mutex_unlock(&wmi->op_mutex);
return -ETIMEDOUT;
}
mutex_unlock(&wmi->op_mutex);
return 0;
out:
ath_print(common, ATH_DBG_WMI,
"WMI failure for: %s\n", wmi_cmd_to_name(cmd_id));
mutex_unlock(&wmi->op_mutex);
dev_kfree_skb_any(skb);
return ret;
}
drivers/net/wireless/ath/ath9k/wmi.h 0 → 100644
View file @ fb9987d0
/*
* Copyright (c) 2010 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 WMI_H
#define WMI_H
struct wmi_event_txrate {
u32 txrate;
struct {
u8 rssi_thresh;
u8 per;
} rc_stats;
} __packed;
struct wmi_cmd_hdr {
u16 command_id;
u16 seq_no;
} __packed;
struct wmi_swba {
u8 beacon_pending;
} __packed;
enum wmi_cmd_id {
WMI_ECHO_CMDID = 0x0001,
WMI_ACCESS_MEMORY_CMDID,
/* Commands to Target */
WMI_DISABLE_INTR_CMDID,
WMI_ENABLE_INTR_CMDID,
WMI_RX_LINK_CMDID,
WMI_ATH_INIT_CMDID,
WMI_ABORT_TXQ_CMDID,
WMI_STOP_TX_DMA_CMDID,
WMI_STOP_DMA_RECV_CMDID,
WMI_ABORT_TX_DMA_CMDID,
WMI_DRAIN_TXQ_CMDID,
WMI_DRAIN_TXQ_ALL_CMDID,
WMI_START_RECV_CMDID,
WMI_STOP_RECV_CMDID,
WMI_FLUSH_RECV_CMDID,
WMI_SET_MODE_CMDID,
WMI_RESET_CMDID,
WMI_NODE_CREATE_CMDID,
WMI_NODE_REMOVE_CMDID,
WMI_VAP_REMOVE_CMDID,
WMI_VAP_CREATE_CMDID,
WMI_BEACON_UPDATE_CMDID,
WMI_REG_READ_CMDID,
WMI_REG_WRITE_CMDID,
WMI_RC_STATE_CHANGE_CMDID,
WMI_RC_RATE_UPDATE_CMDID,
WMI_DEBUG_INFO_CMDID,
WMI_HOST_ATTACH,
WMI_TARGET_IC_UPDATE_CMDID,
WMI_TGT_STATS_CMDID,
WMI_TX_AGGR_ENABLE_CMDID,
WMI_TGT_DETACH_CMDID,
WMI_TGT_TXQ_ENABLE_CMDID,
};
enum wmi_event_id {
WMI_TGT_RDY_EVENTID = 0x1001,
WMI_SWBA_EVENTID,
WMI_FATAL_EVENTID,
WMI_TXTO_EVENTID,
WMI_BMISS_EVENTID,
WMI_WLAN_TXCOMP_EVENTID,
WMI_DELBA_EVENTID,
WMI_TXRATE_EVENTID,
};
struct wmi {
struct ath9k_htc_priv *drv_priv;
struct htc_target *htc;
enum htc_endpoint_id ctrl_epid;
struct mutex op_mutex;
struct completion cmd_wait;
u16 tx_seq_id;
u8 *cmd_rsp_buf;
u32 cmd_rsp_len;
bool stopped;
struct sk_buff *wmi_skb;
spinlock_t wmi_lock;
};
struct wmi *ath9k_init_wmi(struct ath9k_htc_priv *priv);
void ath9k_deinit_wmi(struct ath9k_htc_priv *priv);
int ath9k_wmi_connect(struct htc_target *htc, struct wmi *wmi,
enum htc_endpoint_id *wmi_ctrl_epid);
int ath9k_wmi_cmd(struct wmi *wmi, enum wmi_cmd_id cmd_id,
u8 *cmd_buf, u32 cmd_len,
u8 *rsp_buf, u32 rsp_len,
u32 timeout);
void ath9k_wmi_tasklet(unsigned long data);
#define WMI_CMD(_wmi_cmd) \
do { \
ret = ath9k_wmi_cmd(priv->wmi, _wmi_cmd, NULL, 0, \
(u8 *) &cmd_rsp, \
sizeof(cmd_rsp), HZ); \
} while (0)
#define WMI_CMD_BUF(_wmi_cmd, _buf) \
do { \
ret = ath9k_wmi_cmd(priv->wmi, _wmi_cmd, \
(u8 *) _buf, sizeof(*_buf), \
&cmd_rsp, sizeof(cmd_rsp), HZ); \
} while (0)
#endif /* WMI_H */
drivers/net/wireless/ath/debug.h
View file @ fb9987d0
...@@ -59,6 +59,7 @@ enum ATH_DEBUG { ...@@ -59,6 +59,7 @@ enum ATH_DEBUG {
ATH_DBG_PS = 0x00000800, ATH_DBG_PS = 0x00000800,
ATH_DBG_HWTIMER = 0x00001000, ATH_DBG_HWTIMER = 0x00001000,
ATH_DBG_BTCOEX = 0x00002000, ATH_DBG_BTCOEX = 0x00002000,
ATH_DBG_WMI = 0x00004000,
ATH_DBG_ANY = 0xffffffff ATH_DBG_ANY = 0xffffffff
}; };
......
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