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path: root/drivers/net/wireless/p54/p54common.c
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Diffstat (limited to 'drivers/net/wireless/p54/p54common.c')
-rw-r--r--drivers/net/wireless/p54/p54common.c1652
1 files changed, 1219 insertions, 433 deletions
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
index 827ca0384a4..c6a370fa9bc 100644
--- a/drivers/net/wireless/p54/p54common.c
+++ b/drivers/net/wireless/p54/p54common.c
@@ -1,12 +1,15 @@
-
/*
* Common code for mac80211 Prism54 drivers
*
* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
* Copyright (c) 2007, Christian Lamparter <chunkeey@web.de>
+ * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
*
- * Based on the islsm (softmac prism54) driver, which is:
- * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
+ * Based on:
+ * - the islsm (softmac prism54) driver, which is:
+ * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
+ * - stlc45xx driver
+ * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -22,6 +25,9 @@
#include "p54.h"
#include "p54common.h"
+static int modparam_nohwcrypt;
+module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
+MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
MODULE_DESCRIPTION("Softmac Prism54 common code");
MODULE_LICENSE("GPL");
@@ -132,6 +138,7 @@ int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
u8 *fw_version = NULL;
size_t len;
int i;
+ int maxlen;
if (priv->rx_start)
return 0;
@@ -152,21 +159,21 @@ int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
priv->fw_interface = be32_to_cpup((__be32 *)
bootrec->data);
switch (priv->fw_interface) {
- case FW_FMAC:
- printk(KERN_INFO "p54: FreeMAC firmware\n");
- break;
- case FW_LM20:
- printk(KERN_INFO "p54: LM20 firmware\n");
- break;
case FW_LM86:
- printk(KERN_INFO "p54: LM86 firmware\n");
- break;
- case FW_LM87:
- printk(KERN_INFO "p54: LM87 firmware\n");
+ case FW_LM20:
+ case FW_LM87: {
+ char *iftype = (char *)bootrec->data;
+ printk(KERN_INFO "%s: p54 detected a LM%c%c "
+ "firmware\n",
+ wiphy_name(dev->wiphy),
+ iftype[2], iftype[3]);
break;
+ }
+ case FW_FMAC:
default:
- printk(KERN_INFO "p54: unknown firmware\n");
- break;
+ printk(KERN_ERR "%s: unsupported firmware\n",
+ wiphy_name(dev->wiphy));
+ return -ENODEV;
}
break;
case BR_CODE_COMPONENT_VERSION:
@@ -182,11 +189,23 @@ int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
priv->rx_end = le32_to_cpu(desc->rx_end) - 0x3500;
priv->headroom = desc->headroom;
priv->tailroom = desc->tailroom;
+ priv->privacy_caps = desc->privacy_caps;
+ priv->rx_keycache_size = desc->rx_keycache_size;
if (le32_to_cpu(bootrec->len) == 11)
- priv->rx_mtu = le16_to_cpu(bootrec->rx_mtu);
+ priv->rx_mtu = le16_to_cpu(desc->rx_mtu);
else
priv->rx_mtu = (size_t)
0x620 - priv->tx_hdr_len;
+ maxlen = priv->tx_hdr_len + /* USB devices */
+ sizeof(struct p54_rx_data) +
+ 4 + /* rx alignment */
+ IEEE80211_MAX_FRAG_THRESHOLD;
+ if (priv->rx_mtu > maxlen && PAGE_SIZE == 4096) {
+ printk(KERN_INFO "p54: rx_mtu reduced from %d "
+ "to %d\n", priv->rx_mtu,
+ maxlen);
+ priv->rx_mtu = maxlen;
+ }
break;
}
case BR_CODE_EXPOSED_IF:
@@ -208,18 +227,35 @@ int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw)
}
if (fw_version)
- printk(KERN_INFO "p54: FW rev %s - Softmac protocol %x.%x\n",
- fw_version, priv->fw_var >> 8, priv->fw_var & 0xff);
+ printk(KERN_INFO "%s: FW rev %s - Softmac protocol %x.%x\n",
+ wiphy_name(dev->wiphy), fw_version,
+ priv->fw_var >> 8, priv->fw_var & 0xff);
+
+ if (priv->fw_var < 0x500)
+ printk(KERN_INFO "%s: you are using an obsolete firmware. "
+ "visit http://wireless.kernel.org/en/users/Drivers/p54 "
+ "and grab one for \"kernel >= 2.6.28\"!\n",
+ wiphy_name(dev->wiphy));
if (priv->fw_var >= 0x300) {
/* Firmware supports QoS, use it! */
- priv->tx_stats[4].limit = 3;
- priv->tx_stats[5].limit = 4;
- priv->tx_stats[6].limit = 3;
- priv->tx_stats[7].limit = 1;
+ priv->tx_stats[4].limit = 3; /* AC_VO */
+ priv->tx_stats[5].limit = 4; /* AC_VI */
+ priv->tx_stats[6].limit = 3; /* AC_BE */
+ priv->tx_stats[7].limit = 2; /* AC_BK */
dev->queues = 4;
}
+ if (!modparam_nohwcrypt)
+ printk(KERN_INFO "%s: cryptographic accelerator "
+ "WEP:%s, TKIP:%s, CCMP:%s\n",
+ wiphy_name(dev->wiphy),
+ (priv->privacy_caps & BR_DESC_PRIV_CAP_WEP) ? "YES" :
+ "no", (priv->privacy_caps & (BR_DESC_PRIV_CAP_TKIP |
+ BR_DESC_PRIV_CAP_MICHAEL)) ? "YES" : "no",
+ (priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP) ?
+ "YES" : "no");
+
return 0;
}
EXPORT_SYMBOL_GPL(p54_parse_firmware);
@@ -310,6 +346,36 @@ static const char *p54_rf_chips[] = { "NULL", "Duette3", "Duette2",
"Frisbee", "Xbow", "Longbow", "NULL", "NULL" };
static int p54_init_xbow_synth(struct ieee80211_hw *dev);
+static void p54_parse_rssical(struct ieee80211_hw *dev, void *data, int len,
+ u16 type)
+{
+ struct p54_common *priv = dev->priv;
+ int offset = (type == PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED) ? 2 : 0;
+ int entry_size = sizeof(struct pda_rssi_cal_entry) + offset;
+ int num_entries = (type == PDR_RSSI_LINEAR_APPROXIMATION) ? 1 : 2;
+ int i;
+
+ if (len != (entry_size * num_entries)) {
+ printk(KERN_ERR "%s: unknown rssi calibration data packing "
+ " type:(%x) len:%d.\n",
+ wiphy_name(dev->wiphy), type, len);
+
+ print_hex_dump_bytes("rssical:", DUMP_PREFIX_NONE,
+ data, len);
+
+ printk(KERN_ERR "%s: please report this issue.\n",
+ wiphy_name(dev->wiphy));
+ return;
+ }
+
+ for (i = 0; i < num_entries; i++) {
+ struct pda_rssi_cal_entry *cal = data +
+ (offset + i * entry_size);
+ priv->rssical_db[i].mul = (s16) le16_to_cpu(cal->mul);
+ priv->rssical_db[i].add = (s16) le16_to_cpu(cal->add);
+ }
+}
+
static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
{
struct p54_common *priv = dev->priv;
@@ -320,7 +386,6 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
int err;
u8 *end = (u8 *)eeprom + len;
u16 synth = 0;
- DECLARE_MAC_BUF(mac);
wrap = (struct eeprom_pda_wrap *) eeprom;
entry = (void *)wrap->data + le16_to_cpu(wrap->len);
@@ -377,8 +442,9 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
err = p54_convert_rev1(dev, curve_data);
break;
default:
- printk(KERN_ERR "p54: unknown curve data "
+ printk(KERN_ERR "%s: unknown curve data "
"revision %d\n",
+ wiphy_name(dev->wiphy),
curve_data->cal_method_rev);
err = -ENODEV;
break;
@@ -409,12 +475,40 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
case PDR_HARDWARE_PLATFORM_COMPONENT_ID:
priv->version = *(u8 *)(entry->data + 1);
break;
+ case PDR_RSSI_LINEAR_APPROXIMATION:
+ case PDR_RSSI_LINEAR_APPROXIMATION_DUAL_BAND:
+ case PDR_RSSI_LINEAR_APPROXIMATION_EXTENDED:
+ p54_parse_rssical(dev, entry->data, data_len,
+ le16_to_cpu(entry->code));
+ break;
case PDR_END:
/* make it overrun */
entry_len = len;
break;
+ case PDR_MANUFACTURING_PART_NUMBER:
+ case PDR_PDA_VERSION:
+ case PDR_NIC_SERIAL_NUMBER:
+ case PDR_REGULATORY_DOMAIN_LIST:
+ case PDR_TEMPERATURE_TYPE:
+ case PDR_PRISM_PCI_IDENTIFIER:
+ case PDR_COUNTRY_INFORMATION:
+ case PDR_OEM_NAME:
+ case PDR_PRODUCT_NAME:
+ case PDR_UTF8_OEM_NAME:
+ case PDR_UTF8_PRODUCT_NAME:
+ case PDR_COUNTRY_LIST:
+ case PDR_DEFAULT_COUNTRY:
+ case PDR_ANTENNA_GAIN:
+ case PDR_PRISM_INDIGO_PA_CALIBRATION_DATA:
+ case PDR_REGULATORY_POWER_LIMITS:
+ case PDR_RADIATED_TRANSMISSION_CORRECTION:
+ case PDR_PRISM_TX_IQ_CALIBRATION:
+ case PDR_BASEBAND_REGISTERS:
+ case PDR_PER_CHANNEL_BASEBAND_REGISTERS:
+ break;
default:
- printk(KERN_INFO "p54: unknown eeprom code : 0x%x\n",
+ printk(KERN_INFO "%s: unknown eeprom code : 0x%x\n",
+ wiphy_name(dev->wiphy),
le16_to_cpu(entry->code));
break;
}
@@ -424,17 +518,18 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
if (!synth || !priv->iq_autocal || !priv->output_limit ||
!priv->curve_data) {
- printk(KERN_ERR "p54: not all required entries found in eeprom!\n");
+ printk(KERN_ERR "%s: not all required entries found in eeprom!\n",
+ wiphy_name(dev->wiphy));
err = -EINVAL;
goto err;
}
- priv->rxhw = synth & 0x07;
+ priv->rxhw = synth & PDR_SYNTH_FRONTEND_MASK;
if (priv->rxhw == 4)
p54_init_xbow_synth(dev);
- if (!(synth & 0x40))
+ if (!(synth & PDR_SYNTH_24_GHZ_DISABLED))
dev->wiphy->bands[IEEE80211_BAND_2GHZ] = &band_2GHz;
- if (!(synth & 0x80))
+ if (!(synth & PDR_SYNTH_5_GHZ_DISABLED))
dev->wiphy->bands[IEEE80211_BAND_5GHZ] = &band_5GHz;
if (!is_valid_ether_addr(dev->wiphy->perm_addr)) {
@@ -446,9 +541,9 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
SET_IEEE80211_PERM_ADDR(dev, perm_addr);
}
- printk(KERN_INFO "%s: hwaddr %s, MAC:isl38%02x RF:%s\n",
+ printk(KERN_INFO "%s: hwaddr %pM, MAC:isl38%02x RF:%s\n",
wiphy_name(dev->wiphy),
- print_mac(mac, dev->wiphy->perm_addr),
+ dev->wiphy->perm_addr,
priv->version, p54_rf_chips[priv->rxhw]);
return 0;
@@ -469,38 +564,62 @@ static int p54_parse_eeprom(struct ieee80211_hw *dev, void *eeprom, int len)
priv->curve_data = NULL;
}
- printk(KERN_ERR "p54: eeprom parse failed!\n");
+ printk(KERN_ERR "%s: eeprom parse failed!\n",
+ wiphy_name(dev->wiphy));
return err;
}
static int p54_rssi_to_dbm(struct ieee80211_hw *dev, int rssi)
{
- /* TODO: get the rssi_add & rssi_mul data from the eeprom */
- return ((rssi * 0x83) / 64 - 400) / 4;
+ struct p54_common *priv = dev->priv;
+ int band = dev->conf.channel->band;
+
+ return ((rssi * priv->rssical_db[band].mul) / 64 +
+ priv->rssical_db[band].add) / 4;
}
static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb)
{
struct p54_common *priv = dev->priv;
- struct p54_rx_hdr *hdr = (struct p54_rx_hdr *) skb->data;
+ struct p54_rx_data *hdr = (struct p54_rx_data *) skb->data;
struct ieee80211_rx_status rx_status = {0};
u16 freq = le16_to_cpu(hdr->freq);
size_t header_len = sizeof(*hdr);
u32 tsf32;
+ u8 rate = hdr->rate & 0xf;
- if (!(hdr->magic & cpu_to_le16(0x0001))) {
+ /*
+ * If the device is in a unspecified state we have to
+ * ignore all data frames. Else we could end up with a
+ * nasty crash.
+ */
+ if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
+ return 0;
+
+ if (!(hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_IN_FCS_GOOD))) {
if (priv->filter_flags & FIF_FCSFAIL)
rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
else
return 0;
}
+ if (hdr->decrypt_status == P54_DECRYPT_OK)
+ rx_status.flag |= RX_FLAG_DECRYPTED;
+ if ((hdr->decrypt_status == P54_DECRYPT_FAIL_MICHAEL) ||
+ (hdr->decrypt_status == P54_DECRYPT_FAIL_TKIP))
+ rx_status.flag |= RX_FLAG_MMIC_ERROR;
+
rx_status.signal = p54_rssi_to_dbm(dev, hdr->rssi);
rx_status.noise = priv->noise;
/* XX correct? */
rx_status.qual = (100 * hdr->rssi) / 127;
- rx_status.rate_idx = (dev->conf.channel->band == IEEE80211_BAND_2GHZ ?
- hdr->rate : (hdr->rate - 4)) & 0xf;
+ if (hdr->rate & 0x10)
+ rx_status.flag |= RX_FLAG_SHORTPRE;
+ if (dev->conf.channel->band == IEEE80211_BAND_5GHZ)
+ rx_status.rate_idx = (rate < 4) ? 0 : rate - 4;
+ else
+ rx_status.rate_idx = rate;
+
rx_status.freq = freq;
rx_status.band = dev->conf.channel->band;
rx_status.antenna = hdr->antenna;
@@ -513,7 +632,7 @@ static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb)
rx_status.flag |= RX_FLAG_TSFT;
- if (hdr->magic & cpu_to_le16(0x4000))
+ if (hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN))
header_len += hdr->align[0];
skb_pull(skb, header_len);
@@ -521,6 +640,9 @@ static int p54_rx_data(struct ieee80211_hw *dev, struct sk_buff *skb)
ieee80211_rx_irqsafe(dev, skb, &rx_status);
+ queue_delayed_work(dev->workqueue, &priv->work,
+ msecs_to_jiffies(P54_STATISTICS_UPDATE));
+
return -1;
}
@@ -529,88 +651,207 @@ static void inline p54_wake_free_queues(struct ieee80211_hw *dev)
struct p54_common *priv = dev->priv;
int i;
+ if (priv->mode == NL80211_IFTYPE_UNSPECIFIED)
+ return ;
+
for (i = 0; i < dev->queues; i++)
if (priv->tx_stats[i + 4].len < priv->tx_stats[i + 4].limit)
ieee80211_wake_queue(dev, i);
}
+void p54_free_skb(struct ieee80211_hw *dev, struct sk_buff *skb)
+{
+ struct p54_common *priv = dev->priv;
+ struct ieee80211_tx_info *info;
+ struct memrecord *range;
+ unsigned long flags;
+ u32 freed = 0, last_addr = priv->rx_start;
+
+ if (unlikely(!skb || !dev || !skb_queue_len(&priv->tx_queue)))
+ return;
+
+ /*
+ * don't try to free an already unlinked skb
+ */
+ if (unlikely((!skb->next) || (!skb->prev)))
+ return;
+
+ spin_lock_irqsave(&priv->tx_queue.lock, flags);
+ info = IEEE80211_SKB_CB(skb);
+ range = (void *)info->rate_driver_data;
+ if (skb->prev != (struct sk_buff *)&priv->tx_queue) {
+ struct ieee80211_tx_info *ni;
+ struct memrecord *mr;
+
+ ni = IEEE80211_SKB_CB(skb->prev);
+ mr = (struct memrecord *)ni->rate_driver_data;
+ last_addr = mr->end_addr;
+ }
+ if (skb->next != (struct sk_buff *)&priv->tx_queue) {
+ struct ieee80211_tx_info *ni;
+ struct memrecord *mr;
+
+ ni = IEEE80211_SKB_CB(skb->next);
+ mr = (struct memrecord *)ni->rate_driver_data;
+ freed = mr->start_addr - last_addr;
+ } else
+ freed = priv->rx_end - last_addr;
+ __skb_unlink(skb, &priv->tx_queue);
+ spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+ dev_kfree_skb_any(skb);
+
+ if (freed >= priv->headroom + sizeof(struct p54_hdr) + 48 +
+ IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
+ p54_wake_free_queues(dev);
+}
+EXPORT_SYMBOL_GPL(p54_free_skb);
+
+static struct sk_buff *p54_find_tx_entry(struct ieee80211_hw *dev,
+ __le32 req_id)
+{
+ struct p54_common *priv = dev->priv;
+ struct sk_buff *entry = priv->tx_queue.next;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->tx_queue.lock, flags);
+ while (entry != (struct sk_buff *)&priv->tx_queue) {
+ struct p54_hdr *hdr = (struct p54_hdr *) entry->data;
+
+ if (hdr->req_id == req_id) {
+ spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+ return entry;
+ }
+ entry = entry->next;
+ }
+ spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+ return NULL;
+}
+
static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
{
struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
- struct p54_frame_sent_hdr *payload = (struct p54_frame_sent_hdr *) hdr->data;
+ struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
+ struct p54_frame_sent *payload = (struct p54_frame_sent *) hdr->data;
struct sk_buff *entry = (struct sk_buff *) priv->tx_queue.next;
u32 addr = le32_to_cpu(hdr->req_id) - priv->headroom;
struct memrecord *range = NULL;
u32 freed = 0;
u32 last_addr = priv->rx_start;
unsigned long flags;
+ int count, idx;
spin_lock_irqsave(&priv->tx_queue.lock, flags);
while (entry != (struct sk_buff *)&priv->tx_queue) {
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
- range = (void *)info->driver_data;
- if (range->start_addr == addr) {
- struct p54_control_hdr *entry_hdr;
- struct p54_tx_control_allocdata *entry_data;
- int pad = 0;
-
- if (entry->next != (struct sk_buff *)&priv->tx_queue) {
- struct ieee80211_tx_info *ni;
- struct memrecord *mr;
-
- ni = IEEE80211_SKB_CB(entry->next);
- mr = (struct memrecord *)ni->driver_data;
- freed = mr->start_addr - last_addr;
- } else
- freed = priv->rx_end - last_addr;
+ struct p54_hdr *entry_hdr;
+ struct p54_tx_data *entry_data;
+ int pad = 0;
+ range = (void *)info->rate_driver_data;
+ if (range->start_addr != addr) {
last_addr = range->end_addr;
- __skb_unlink(entry, &priv->tx_queue);
- spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+ entry = entry->next;
+ continue;
+ }
- memset(&info->status, 0, sizeof(info->status));
- entry_hdr = (struct p54_control_hdr *) entry->data;
- entry_data = (struct p54_tx_control_allocdata *) entry_hdr->data;
- if ((entry_hdr->magic1 & cpu_to_le16(0x4000)) != 0)
- pad = entry_data->align[0];
-
- priv->tx_stats[entry_data->hw_queue].len--;
- if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
- if (!(payload->status & 0x01))
- info->flags |= IEEE80211_TX_STAT_ACK;
- else
- info->status.excessive_retries = 1;
- }
- info->status.retry_count = payload->retries - 1;
- info->status.ack_signal = p54_rssi_to_dbm(dev,
- le16_to_cpu(payload->ack_rssi));
- skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data));
- ieee80211_tx_status_irqsafe(dev, entry);
- goto out;
+ if (entry->next != (struct sk_buff *)&priv->tx_queue) {
+ struct ieee80211_tx_info *ni;
+ struct memrecord *mr;
+
+ ni = IEEE80211_SKB_CB(entry->next);
+ mr = (struct memrecord *)ni->rate_driver_data;
+ freed = mr->start_addr - last_addr;
} else
- last_addr = range->end_addr;
- entry = entry->next;
+ freed = priv->rx_end - last_addr;
+
+ last_addr = range->end_addr;
+ __skb_unlink(entry, &priv->tx_queue);
+ spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+
+ entry_hdr = (struct p54_hdr *) entry->data;
+ entry_data = (struct p54_tx_data *) entry_hdr->data;
+ priv->tx_stats[entry_data->hw_queue].len--;
+ priv->stats.dot11ACKFailureCount += payload->tries - 1;
+
+ if (unlikely(entry == priv->cached_beacon)) {
+ kfree_skb(entry);
+ priv->cached_beacon = NULL;
+ goto out;
+ }
+
+ /*
+ * Clear manually, ieee80211_tx_info_clear_status would
+ * clear the counts too and we need them.
+ */
+ memset(&info->status.ampdu_ack_len, 0,
+ sizeof(struct ieee80211_tx_info) -
+ offsetof(struct ieee80211_tx_info, status.ampdu_ack_len));
+ BUILD_BUG_ON(offsetof(struct ieee80211_tx_info,
+ status.ampdu_ack_len) != 23);
+
+ if (entry_hdr->flags & cpu_to_le16(P54_HDR_FLAG_DATA_ALIGN))
+ pad = entry_data->align[0];
+
+ /* walk through the rates array and adjust the counts */
+ count = payload->tries;
+ for (idx = 0; idx < 4; idx++) {
+ if (count >= info->status.rates[idx].count) {
+ count -= info->status.rates[idx].count;
+ } else if (count > 0) {
+ info->status.rates[idx].count = count;
+ count = 0;
+ } else {
+ info->status.rates[idx].idx = -1;
+ info->status.rates[idx].count = 0;
+ }
+ }
+
+ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
+ (!payload->status))
+ info->flags |= IEEE80211_TX_STAT_ACK;
+ if (payload->status & P54_TX_PSM_CANCELLED)
+ info->flags |= IEEE80211_TX_STAT_TX_FILTERED;
+ info->status.ack_signal = p54_rssi_to_dbm(dev,
+ (int)payload->ack_rssi);
+
+ if (entry_data->key_type == P54_CRYPTO_TKIPMICHAEL) {
+ u8 *iv = (u8 *)(entry_data->align + pad +
+ entry_data->crypt_offset);
+
+ /* Restore the original TKIP IV. */
+ iv[2] = iv[0];
+ iv[0] = iv[1];
+ iv[1] = (iv[0] | 0x20) & 0x7f; /* WEPSeed - 8.3.2.2 */
+ }
+ skb_pull(entry, sizeof(*hdr) + pad + sizeof(*entry_data));
+ ieee80211_tx_status_irqsafe(dev, entry);
+ goto out;
}
spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
out:
- if (freed >= IEEE80211_MAX_RTS_THRESHOLD + 0x170 +
- sizeof(struct p54_control_hdr))
+ if (freed >= priv->headroom + sizeof(struct p54_hdr) + 48 +
+ IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
p54_wake_free_queues(dev);
}
static void p54_rx_eeprom_readback(struct ieee80211_hw *dev,
struct sk_buff *skb)
{
- struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
+ struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
struct p54_eeprom_lm86 *eeprom = (struct p54_eeprom_lm86 *) hdr->data;
struct p54_common *priv = dev->priv;
if (!priv->eeprom)
return ;
- memcpy(priv->eeprom, eeprom->data, le16_to_cpu(eeprom->len));
+ if (priv->fw_var >= 0x509) {
+ memcpy(priv->eeprom, eeprom->v2.data,
+ le16_to_cpu(eeprom->v2.len));
+ } else {
+ memcpy(priv->eeprom, eeprom->v1.data,
+ le16_to_cpu(eeprom->v1.len));
+ }
complete(&priv->eeprom_comp);
}
@@ -618,10 +859,14 @@ static void p54_rx_eeprom_readback(struct ieee80211_hw *dev,
static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb)
{
struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
+ struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
struct p54_statistics *stats = (struct p54_statistics *) hdr->data;
- u32 tsf32 = le32_to_cpu(stats->tsf32);
+ u32 tsf32;
+ if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
+ return ;
+
+ tsf32 = le32_to_cpu(stats->tsf32);
if (tsf32 < priv->tsf_low32)
priv->tsf_high32++;
priv->tsf_low32 = tsf32;
@@ -631,19 +876,50 @@ static void p54_rx_stats(struct ieee80211_hw *dev, struct sk_buff *skb)
priv->stats.dot11FCSErrorCount = le32_to_cpu(stats->rx_bad_fcs);
priv->noise = p54_rssi_to_dbm(dev, le32_to_cpu(stats->noise));
- complete(&priv->stats_comp);
- mod_timer(&priv->stats_timer, jiffies + 5 * HZ);
+ p54_free_skb(dev, p54_find_tx_entry(dev, hdr->req_id));
+}
+
+static void p54_rx_trap(struct ieee80211_hw *dev, struct sk_buff *skb)
+{
+ struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
+ struct p54_trap *trap = (struct p54_trap *) hdr->data;
+ u16 event = le16_to_cpu(trap->event);
+ u16 freq = le16_to_cpu(trap->frequency);
+
+ switch (event) {
+ case P54_TRAP_BEACON_TX:
+ break;
+ case P54_TRAP_RADAR:
+ printk(KERN_INFO "%s: radar (freq:%d MHz)\n",
+ wiphy_name(dev->wiphy), freq);
+ break;
+ case P54_TRAP_NO_BEACON:
+ break;
+ case P54_TRAP_SCAN:
+ break;
+ case P54_TRAP_TBTT:
+ break;
+ case P54_TRAP_TIMER:
+ break;
+ default:
+ printk(KERN_INFO "%s: received event:%x freq:%d\n",
+ wiphy_name(dev->wiphy), event, freq);
+ break;
+ }
}
static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb)
{
- struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data;
+ struct p54_hdr *hdr = (struct p54_hdr *) skb->data;
switch (le16_to_cpu(hdr->type)) {
case P54_CONTROL_TYPE_TXDONE:
p54_rx_frame_sent(dev, skb);
break;
+ case P54_CONTROL_TYPE_TRAP:
+ p54_rx_trap(dev, skb);
+ break;
case P54_CONTROL_TYPE_BBP:
break;
case P54_CONTROL_TYPE_STAT_READBACK:
@@ -664,9 +940,9 @@ static int p54_rx_control(struct ieee80211_hw *dev, struct sk_buff *skb)
/* returns zero if skb can be reused */
int p54_rx(struct ieee80211_hw *dev, struct sk_buff *skb)
{
- u8 type = le16_to_cpu(*((__le16 *)skb->data)) >> 8;
+ u16 type = le16_to_cpu(*((__le16 *)skb->data));
- if (type == 0x80)
+ if (type & P54_HDR_FLAG_CONTROL)
return p54_rx_control(dev, skb);
else
return p54_rx_data(dev, skb);
@@ -682,12 +958,14 @@ EXPORT_SYMBOL_GPL(p54_rx);
* marks allocated areas as reserved if necessary. p54_rx_frame_sent frees
* allocated areas.
*/
-static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
- struct p54_control_hdr *data, u32 len)
+static int p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
+ struct p54_hdr *data, u32 len)
{
struct p54_common *priv = dev->priv;
struct sk_buff *entry = priv->tx_queue.next;
struct sk_buff *target_skb = NULL;
+ struct ieee80211_tx_info *info;
+ struct memrecord *range;
u32 last_addr = priv->rx_start;
u32 largest_hole = 0;
u32 target_addr = priv->rx_start;
@@ -695,12 +973,37 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
unsigned int left;
len = (len + priv->headroom + priv->tailroom + 3) & ~0x3;
+ if (!skb)
+ return -EINVAL;
+
spin_lock_irqsave(&priv->tx_queue.lock, flags);
+
left = skb_queue_len(&priv->tx_queue);
+ if (unlikely(left >= 28)) {
+ /*
+ * The tx_queue is nearly full!
+ * We have throttle normal data traffic, because we must
+ * have a few spare slots for control frames left.
+ */
+ ieee80211_stop_queues(dev);
+ queue_delayed_work(dev->workqueue, &priv->work,
+ msecs_to_jiffies(P54_TX_TIMEOUT));
+
+ if (unlikely(left == 32)) {
+ /*
+ * The tx_queue is now really full.
+ *
+ * TODO: check if the device has crashed and reset it.
+ */
+ spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+ return -ENOSPC;
+ }
+ }
+
while (left--) {
u32 hole_size;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(entry);
- struct memrecord *range = (void *)info->driver_data;
+ info = IEEE80211_SKB_CB(entry);
+ range = (void *)info->rate_driver_data;
hole_size = range->start_addr - last_addr;
if (!target_skb && hole_size >= len) {
target_skb = entry->prev;
@@ -715,64 +1018,102 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb,
target_skb = priv->tx_queue.prev;
largest_hole = max(largest_hole, priv->rx_end - last_addr - len);
if (!skb_queue_empty(&priv->tx_queue)) {
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(target_skb);
- struct memrecord *range = (void *)info->driver_data;
+ info = IEEE80211_SKB_CB(target_skb);
+ range = (void *)info->rate_driver_data;
target_addr = range->end_addr;
}
} else
largest_hole = max(largest_hole, priv->rx_end - last_addr);
- if (skb) {
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct memrecord *range = (void *)info->driver_data;
- range->start_addr = target_addr;
- range->end_addr = target_addr + len;
- __skb_queue_after(&priv->tx_queue, target_skb, skb);
- if (largest_hole < priv->rx_mtu + priv->headroom +
- priv->tailroom +
- sizeof(struct p54_control_hdr))
- ieee80211_stop_queues(dev);
+ if (!target_skb) {
+ spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+ ieee80211_stop_queues(dev);
+ return -ENOSPC;
}
+
+ info = IEEE80211_SKB_CB(skb);
+ range = (void *)info->rate_driver_data;
+ range->start_addr = target_addr;
+ range->end_addr = target_addr + len;
+ __skb_queue_after(&priv->tx_queue, target_skb, skb);
spin_unlock_irqrestore(&priv->tx_queue.lock, flags);
+ if (largest_hole < priv->headroom + sizeof(struct p54_hdr) +
+ 48 + IEEE80211_MAX_RTS_THRESHOLD + priv->tailroom)
+ ieee80211_stop_queues(dev);
+
data->req_id = cpu_to_le32(target_addr + priv->headroom);
+ return 0;
+}
+
+static struct sk_buff *p54_alloc_skb(struct ieee80211_hw *dev,
+ u16 hdr_flags, u16 len, u16 type, gfp_t memflags)
+{
+ struct p54_common *priv = dev->priv;
+ struct p54_hdr *hdr;
+ struct sk_buff *skb;
+
+ skb = __dev_alloc_skb(len + priv->tx_hdr_len, memflags);
+ if (!skb)
+ return NULL;
+ skb_reserve(skb, priv->tx_hdr_len);
+
+ hdr = (struct p54_hdr *) skb_put(skb, sizeof(*hdr));
+ hdr->flags = cpu_to_le16(hdr_flags);
+ hdr->len = cpu_to_le16(len - sizeof(*hdr));
+ hdr->type = cpu_to_le16(type);
+ hdr->tries = hdr->rts_tries = 0;
+
+ if (unlikely(p54_assign_address(dev, skb, hdr, len))) {
+ kfree_skb(skb);
+ return NULL;
+ }
+ return skb;
}
int p54_read_eeprom(struct ieee80211_hw *dev)
{
struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr = NULL;
+ struct p54_hdr *hdr = NULL;
struct p54_eeprom_lm86 *eeprom_hdr;
- size_t eeprom_size = 0x2020, offset = 0, blocksize;
+ struct sk_buff *skb;
+ size_t eeprom_size = 0x2020, offset = 0, blocksize, maxblocksize;
int ret = -ENOMEM;
void *eeprom = NULL;
- hdr = (struct p54_control_hdr *)kzalloc(sizeof(*hdr) +
- sizeof(*eeprom_hdr) + EEPROM_READBACK_LEN, GFP_KERNEL);
- if (!hdr)
- goto free;
+ maxblocksize = EEPROM_READBACK_LEN;
+ if (priv->fw_var >= 0x509)
+ maxblocksize -= 0xc;
+ else
+ maxblocksize -= 0x4;
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL, sizeof(*hdr) +
+ sizeof(*eeprom_hdr) + maxblocksize,
+ P54_CONTROL_TYPE_EEPROM_READBACK, GFP_KERNEL);
+ if (!skb)
+ goto free;
priv->eeprom = kzalloc(EEPROM_READBACK_LEN, GFP_KERNEL);
if (!priv->eeprom)
goto free;
-
eeprom = kzalloc(eeprom_size, GFP_KERNEL);
if (!eeprom)
goto free;
- hdr->magic1 = cpu_to_le16(0x8000);
- hdr->type = cpu_to_le16(P54_CONTROL_TYPE_EEPROM_READBACK);
- hdr->retry1 = hdr->retry2 = 0;
- eeprom_hdr = (struct p54_eeprom_lm86 *) hdr->data;
+ eeprom_hdr = (struct p54_eeprom_lm86 *) skb_put(skb,
+ sizeof(*eeprom_hdr) + maxblocksize);
while (eeprom_size) {
- blocksize = min(eeprom_size, (size_t)EEPROM_READBACK_LEN);
- hdr->len = cpu_to_le16(blocksize + sizeof(*eeprom_hdr));
- eeprom_hdr->offset = cpu_to_le16(offset);
- eeprom_hdr->len = cpu_to_le16(blocksize);
- p54_assign_address(dev, NULL, hdr, le16_to_cpu(hdr->len) +
- sizeof(*hdr));
- priv->tx(dev, hdr, le16_to_cpu(hdr->len) + sizeof(*hdr), 0);
+ blocksize = min(eeprom_size, maxblocksize);
+ if (priv->fw_var < 0x509) {
+ eeprom_hdr->v1.offset = cpu_to_le16(offset);
+ eeprom_hdr->v1.len = cpu_to_le16(blocksize);
+ } else {
+ eeprom_hdr->v2.offset = cpu_to_le32(offset);
+ eeprom_hdr->v2.len = cpu_to_le16(blocksize);
+ eeprom_hdr->v2.magic2 = 0xf;
+ memcpy(eeprom_hdr->v2.magic, (const char *)"LOCK", 4);
+ }
+ priv->tx(dev, skb);
if (!wait_for_completion_interruptible_timeout(&priv->eeprom_comp, HZ)) {
printk(KERN_ERR "%s: device does not respond!\n",
@@ -790,166 +1131,423 @@ int p54_read_eeprom(struct ieee80211_hw *dev)
free:
kfree(priv->eeprom);
priv->eeprom = NULL;
- kfree(hdr);
+ p54_free_skb(dev, skb);
kfree(eeprom);
return ret;
}
EXPORT_SYMBOL_GPL(p54_read_eeprom);
+static int p54_set_tim(struct ieee80211_hw *dev, struct ieee80211_sta *sta,
+ bool set)
+{
+ struct p54_common *priv = dev->priv;
+ struct sk_buff *skb;
+ struct p54_tim *tim;
+
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET,
+ sizeof(struct p54_hdr) + sizeof(*tim),
+ P54_CONTROL_TYPE_TIM, GFP_KERNEL);
+ if (!skb)
+ return -ENOMEM;
+
+ tim = (struct p54_tim *) skb_put(skb, sizeof(*tim));
+ tim->count = 1;
+ tim->entry[0] = cpu_to_le16(set ? (sta->aid | 0x8000) : sta->aid);
+ priv->tx(dev, skb);
+ return 0;
+}
+
+static int p54_sta_unlock(struct ieee80211_hw *dev, u8 *addr)
+{
+ struct p54_common *priv = dev->priv;
+ struct sk_buff *skb;
+ struct p54_sta_unlock *sta;
+
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET,
+ sizeof(struct p54_hdr) + sizeof(*sta),
+ P54_CONTROL_TYPE_PSM_STA_UNLOCK, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ sta = (struct p54_sta_unlock *)skb_put(skb, sizeof(*sta));
+ memcpy(sta->addr, addr, ETH_ALEN);
+ priv->tx(dev, skb);
+ return 0;
+}
+
+static void p54_sta_notify(struct ieee80211_hw *dev, struct ieee80211_vif *vif,
+ enum sta_notify_cmd notify_cmd,
+ struct ieee80211_sta *sta)
+{
+ switch (notify_cmd) {
+ case STA_NOTIFY_ADD:
+ case STA_NOTIFY_REMOVE:
+ /*
+ * Notify the firmware that we don't want or we don't
+ * need to buffer frames for this station anymore.
+ */
+
+ p54_sta_unlock(dev, sta->addr);
+ break;
+ case STA_NOTIFY_AWAKE:
+ /* update the firmware's filter table */
+ p54_sta_unlock(dev, sta->addr);
+ break;
+ default:
+ break;
+ }
+}
+
+static int p54_tx_cancel(struct ieee80211_hw *dev, struct sk_buff *entry)
+{
+ struct p54_common *priv = dev->priv;
+ struct sk_buff *skb;
+ struct p54_hdr *hdr;
+ struct p54_txcancel *cancel;
+
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET,
+ sizeof(struct p54_hdr) + sizeof(*cancel),
+ P54_CONTROL_TYPE_TXCANCEL, GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ hdr = (void *)entry->data;
+ cancel = (struct p54_txcancel *)skb_put(skb, sizeof(*cancel));
+ cancel->req_id = hdr->req_id;
+ priv->tx(dev, skb);
+ return 0;
+}
+
+static int p54_tx_fill(struct ieee80211_hw *dev, struct sk_buff *skb,
+ struct ieee80211_tx_info *info, u8 *queue, size_t *extra_len,
+ u16 *flags, u16 *aid)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ struct p54_common *priv = dev->priv;
+ int ret = 0;
+
+ if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) {
+ if (ieee80211_is_beacon(hdr->frame_control)) {
+ *aid = 0;
+ *queue = 0;
+ *extra_len = IEEE80211_MAX_TIM_LEN;
+ *flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP;
+ return 0;
+ } else if (ieee80211_is_probe_resp(hdr->frame_control)) {
+ *aid = 0;
+ *queue = 2;
+ *flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP |
+ P54_HDR_FLAG_DATA_OUT_NOCANCEL;
+ return 0;
+ } else {
+ *queue = 2;
+ ret = 0;
+ }
+ } else {
+ *queue += 4;
+ ret = 1;
+ }
+
+ switch (priv->mode) {
+ case NL80211_IFTYPE_STATION:
+ *aid = 1;
+ break;
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_MESH_POINT:
+ if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) {
+ *aid = 0;
+ *queue = 3;
+ return 0;
+ }
+ if (info->control.sta)
+ *aid = info->control.sta->aid;
+ else
+ *flags |= P54_HDR_FLAG_DATA_OUT_NOCANCEL;
+ }
+ return ret;
+}
+
+static u8 p54_convert_algo(enum ieee80211_key_alg alg)
+{
+ switch (alg) {
+ case ALG_WEP:
+ return P54_CRYPTO_WEP;
+ case ALG_TKIP:
+ return P54_CRYPTO_TKIPMICHAEL;
+ case ALG_CCMP:
+ return P54_CRYPTO_AESCCMP;
+ default:
+ return 0;
+ }
+}
+
static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_tx_queue_stats *current_queue;
+ struct ieee80211_tx_queue_stats *current_queue = NULL;
struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr;
- struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data;
- struct p54_tx_control_allocdata *txhdr;
- size_t padding, len;
- u8 rate;
+ struct p54_hdr *hdr;
+ struct p54_tx_data *txhdr;
+ size_t padding, len, tim_len = 0;
+ int i, j, ridx, ret;
+ u16 hdr_flags = 0, aid = 0;
+ u8 rate, queue, crypt_offset = 0;
u8 cts_rate = 0x20;
+ u8 rc_flags;
+ u8 calculated_tries[4];
+ u8 nrates = 0, nremaining = 8;
+
+ queue = skb_get_queue_mapping(skb);
- current_queue = &priv->tx_stats[skb_get_queue_mapping(skb) + 4];
- if (unlikely(current_queue->len > current_queue->limit))
+ ret = p54_tx_fill(dev, skb, info, &queue, &tim_len, &hdr_flags, &aid);
+ current_queue = &priv->tx_stats[queue];
+ if (unlikely((current_queue->len > current_queue->limit) && ret))
return NETDEV_TX_BUSY;
current_queue->len++;
current_queue->count++;
- if (current_queue->len == current_queue->limit)
+ if ((current_queue->len == current_queue->limit) && ret)
ieee80211_stop_queue(dev, skb_get_queue_mapping(skb));
padding = (unsigned long)(skb->data - (sizeof(*hdr) + sizeof(*txhdr))) & 3;
len = skb->len;
- txhdr = (struct p54_tx_control_allocdata *)
- skb_push(skb, sizeof(*txhdr) + padding);
- hdr = (struct p54_control_hdr *) skb_push(skb, sizeof(*hdr));
+ if (info->control.hw_key) {
+ crypt_offset = ieee80211_get_hdrlen_from_skb(skb);
+ if (info->control.hw_key->alg == ALG_TKIP) {
+ u8 *iv = (u8 *)(skb->data + crypt_offset);
+ /*
+ * The firmware excepts that the IV has to have
+ * this special format
+ */
+ iv[1] = iv[0];
+ iv[0] = iv[2];
+ iv[2] = 0;
+ }
+ }
+
+ txhdr = (struct p54_tx_data *) skb_push(skb, sizeof(*txhdr) + padding);
+ hdr = (struct p54_hdr *) skb_push(skb, sizeof(*hdr));
if (padding)
- hdr->magic1 = cpu_to_le16(0x4010);
- else
- hdr->magic1 = cpu_to_le16(0x0010);
- hdr->len = cpu_to_le16(len);
- hdr->type = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? 0 : cpu_to_le16(1);
- hdr->retry1 = hdr->retry2 = info->control.retry_limit;
-
- /* TODO: add support for alternate retry TX rates */
- rate = ieee80211_get_tx_rate(dev, info)->hw_value;
- if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) {
- rate |= 0x10;
- cts_rate |= 0x10;
+ hdr_flags |= P54_HDR_FLAG_DATA_ALIGN;
+ hdr->type = cpu_to_le16(aid);
+ hdr->rts_tries = info->control.rates[0].count;
+
+ /*
+ * we register the rates in perfect order, and
+ * RTS/CTS won't happen on 5 GHz
+ */
+ cts_rate = info->control.rts_cts_rate_idx;
+
+ memset(&txhdr->rateset, 0, sizeof(txhdr->rateset));
+
+ /* see how many rates got used */
+ for (i = 0; i < 4; i++) {
+ if (info->control.rates[i].idx < 0)
+ break;
+ nrates++;
}
- if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) {
- rate |= 0x40;
- cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value;
- } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) {
- rate |= 0x20;
- cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value;
+
+ /* limit tries to 8/nrates per rate */
+ for (i = 0; i < nrates; i++) {
+ /*
+ * The magic expression here is equivalent to 8/nrates for
+ * all values that matter, but avoids division and jumps.
+ * Note that nrates can only take the values 1 through 4.
+ */
+ calculated_tries[i] = min_t(int, ((15 >> nrates) | 1) + 1,
+ info->control.rates[i].count);
+ nremaining -= calculated_tries[i];
+ }
+
+ /* if there are tries left, distribute from back to front */
+ for (i = nrates - 1; nremaining > 0 && i >= 0; i--) {
+ int tmp = info->control.rates[i].count - calculated_tries[i];
+
+ if (tmp <= 0)
+ continue;
+ /* RC requested more tries at this rate */
+
+ tmp = min_t(int, tmp, nremaining);
+ calculated_tries[i] += tmp;
+ nremaining -= tmp;
+ }
+
+ ridx = 0;
+ for (i = 0; i < nrates && ridx < 8; i++) {
+ /* we register the rates in perfect order */
+ rate = info->control.rates[i].idx;
+ if (info->band == IEEE80211_BAND_5GHZ)
+ rate += 4;
+
+ /* store the count we actually calculated for TX status */
+ info->control.rates[i].count = calculated_tries[i];
+
+ rc_flags = info->control.rates[i].flags;
+ if (rc_flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) {
+ rate |= 0x10;
+ cts_rate |= 0x10;
+ }
+ if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS)
+ rate |= 0x40;
+ else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
+ rate |= 0x20;
+ for (j = 0; j < calculated_tries[i] && ridx < 8; j++) {
+ txhdr->rateset[ridx] = rate;
+ ridx++;
+ }
+ }
+
+ if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
+ hdr_flags |= P54_HDR_FLAG_DATA_OUT_SEQNR;
+
+ /* TODO: enable bursting */
+ hdr->flags = cpu_to_le16(hdr_flags);
+ hdr->tries = ridx;
+ txhdr->rts_rate_idx = 0;
+ if (info->control.hw_key) {
+ txhdr->key_type = p54_convert_algo(info->control.hw_key->alg);
+ txhdr->key_len = min((u8)16, info->control.hw_key->keylen);
+ memcpy(txhdr->key, info->control.hw_key->key, txhdr->key_len);
+ if (info->control.hw_key->alg == ALG_TKIP) {
+ if (unlikely(skb_tailroom(skb) < 12))
+ goto err;
+ /* reserve space for the MIC key */
+ len += 8;
+ memcpy(skb_put(skb, 8), &(info->control.hw_key->key
+ [NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY]), 8);
+ }
+ /* reserve some space for ICV */
+ len += info->control.hw_key->icv_len;
+ memset(skb_put(skb, info->control.hw_key->icv_len), 0,
+ info->control.hw_key->icv_len);
+ } else {
+ txhdr->key_type = 0;
+ txhdr->key_len = 0;
}
- memset(txhdr->rateset, rate, 8);
- txhdr->key_type = 0;
- txhdr->key_len = 0;
- txhdr->hw_queue = skb_get_queue_mapping(skb) + 4;
+ txhdr->crypt_offset = crypt_offset;
+ txhdr->hw_queue = queue;
+ if (current_queue)
+ txhdr->backlog = current_queue->len;
+ else
+ txhdr->backlog = 0;
+ memset(txhdr->durations, 0, sizeof(txhdr->durations));
txhdr->tx_antenna = (info->antenna_sel_tx == 0) ?
2 : info->antenna_sel_tx - 1;
txhdr->output_power = priv->output_power;
- txhdr->cts_rate = (info->flags & IEEE80211_TX_CTL_NO_ACK) ?
- 0 : cts_rate;
+ txhdr->cts_rate = cts_rate;
if (padding)
txhdr->align[0] = padding;
- /* FIXME: The sequence that follows is needed for this driver to
- * work with mac80211 since "mac80211: fix TX sequence numbers".
- * As with the temporary code in rt2x00, changes will be needed
- * to get proper sequence numbers on beacons. In addition, this
- * patch places the sequence number in the hardware state, which
- * limits us to a single virtual state.
- */
- if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
- if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
- priv->seqno += 0x10;
- ieee80211hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
- ieee80211hdr->seq_ctrl |= cpu_to_le16(priv->seqno);
- }
+ hdr->len = cpu_to_le16(len);
/* modifies skb->cb and with it info, so must be last! */
- p54_assign_address(dev, skb, hdr, skb->len);
+ if (unlikely(p54_assign_address(dev, skb, hdr, skb->len + tim_len)))
+ goto err;
+ priv->tx(dev, skb);
+
+ queue_delayed_work(dev->workqueue, &priv->work,
+ msecs_to_jiffies(P54_TX_FRAME_LIFETIME));
- priv->tx(dev, hdr, skb->len, 0);
return 0;
+
+ err:
+ skb_pull(skb, sizeof(*hdr) + sizeof(*txhdr) + padding);
+ if (current_queue) {
+ current_queue->len--;
+ current_queue->count--;
+ }
+ return NETDEV_TX_BUSY;
}
-static int p54_set_filter(struct ieee80211_hw *dev, u16 filter_type,
- const u8 *bssid)
+static int p54_setup_mac(struct ieee80211_hw *dev)
{
struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr;
- struct p54_tx_control_filter *filter;
- size_t data_len;
+ struct sk_buff *skb;
+ struct p54_setup_mac *setup;
+ u16 mode;
- hdr = kzalloc(sizeof(*hdr) + sizeof(*filter) +
- priv->tx_hdr_len, GFP_ATOMIC);
- if (!hdr)
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*setup) +
+ sizeof(struct p54_hdr), P54_CONTROL_TYPE_SETUP,
+ GFP_ATOMIC);
+ if (!skb)
return -ENOMEM;
- hdr = (void *)hdr + priv->tx_hdr_len;
-
- filter = (struct p54_tx_control_filter *) hdr->data;
- hdr->magic1 = cpu_to_le16(0x8001);
- hdr->type = cpu_to_le16(P54_CONTROL_TYPE_FILTER_SET);
-
- priv->filter_type = filter->filter_type = cpu_to_le16(filter_type);
- memcpy(filter->mac_addr, priv->mac_addr, ETH_ALEN);
- if (!bssid)
- memset(filter->bssid, ~0, ETH_ALEN);
- else
- memcpy(filter->bssid, bssid, ETH_ALEN);
-
- filter->rx_antenna = priv->rx_antenna;
+ setup = (struct p54_setup_mac *) skb_put(skb, sizeof(*setup));
+ if (dev->conf.radio_enabled) {
+ switch (priv->mode) {
+ case NL80211_IFTYPE_STATION:
+ mode = P54_FILTER_TYPE_STATION;
+ break;
+ case NL80211_IFTYPE_AP:
+ mode = P54_FILTER_TYPE_AP;
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_MESH_POINT:
+ mode = P54_FILTER_TYPE_IBSS;
+ break;
+ default:
+ mode = P54_FILTER_TYPE_NONE;
+ break;
+ }
+ if (priv->filter_flags & FIF_PROMISC_IN_BSS)
+ mode |= P54_FILTER_TYPE_TRANSPARENT;
+ } else
+ mode = P54_FILTER_TYPE_RX_DISABLED;
+ setup->mac_mode = cpu_to_le16(mode);
+ memcpy(setup->mac_addr, priv->mac_addr, ETH_ALEN);
+ memcpy(setup->bssid, priv->bssid, ETH_ALEN);
+ setup->rx_antenna = 2; /* automatic */
+ setup->rx_align = 0;
if (priv->fw_var < 0x500) {
- data_len = P54_TX_CONTROL_FILTER_V1_LEN;
- filter->v1.basic_rate_mask = cpu_to_le32(0x15F);
- filter->v1.rx_addr = cpu_to_le32(priv->rx_end);
- filter->v1.max_rx = cpu_to_le16(priv->rx_mtu);
- filter->v1.rxhw = cpu_to_le16(priv->rxhw);
- filter->v1.wakeup_timer = cpu_to_le16(500);
+ setup->v1.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
+ memset(setup->v1.rts_rates, 0, 8);
+ setup->v1.rx_addr = cpu_to_le32(priv->rx_end);
+ setup->v1.max_rx = cpu_to_le16(priv->rx_mtu);
+ setup->v1.rxhw = cpu_to_le16(priv->rxhw);
+ setup->v1.wakeup_timer = cpu_to_le16(priv->wakeup_timer);
+ setup->v1.unalloc0 = cpu_to_le16(0);
} else {
- data_len = P54_TX_CONTROL_FILTER_V2_LEN;
- filter->v2.rx_addr = cpu_to_le32(priv->rx_end);
- filter->v2.max_rx = cpu_to_le16(priv->rx_mtu);
- filter->v2.rxhw = cpu_to_le16(priv->rxhw);
- filter->v2.timer = cpu_to_le16(1000);
+ setup->v2.rx_addr = cpu_to_le32(priv->rx_end);
+ setup->v2.max_rx = cpu_to_le16(priv->rx_mtu);
+ setup->v2.rxhw = cpu_to_le16(priv->rxhw);
+ setup->v2.timer = cpu_to_le16(priv->wakeup_timer);
+ setup->v2.truncate = cpu_to_le16(48896);
+ setup->v2.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
+ setup->v2.sbss_offset = 0;
+ setup->v2.mcast_window = 0;
+ setup->v2.rx_rssi_threshold = 0;
+ setup->v2.rx_ed_threshold = 0;
+ setup->v2.ref_clock = cpu_to_le32(644245094);
+ setup->v2.lpf_bandwidth = cpu_to_le16(65535);
+ setup->v2.osc_start_delay = cpu_to_le16(65535);
}
-
- hdr->len = cpu_to_le16(data_len);
- p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + data_len);
- priv->tx(dev, hdr, sizeof(*hdr) + data_len, 1);
+ priv->tx(dev, skb);
return 0;
}
-static int p54_set_freq(struct ieee80211_hw *dev, __le16 freq)
+static int p54_scan(struct ieee80211_hw *dev, u16 mode, u16 dwell)
{
struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr;
- struct p54_tx_control_channel *chan;
+ struct sk_buff *skb;
+ struct p54_scan *chan;
unsigned int i;
- size_t data_len;
void *entry;
+ __le16 freq = cpu_to_le16(dev->conf.channel->center_freq);
+ int band = dev->conf.channel->band;
- hdr = kzalloc(sizeof(*hdr) + sizeof(*chan) +
- priv->tx_hdr_len, GFP_KERNEL);
- if (!hdr)
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*chan) +
+ sizeof(struct p54_hdr), P54_CONTROL_TYPE_SCAN,
+ GFP_ATOMIC);
+ if (!skb)
return -ENOMEM;
- hdr = (void *)hdr + priv->tx_hdr_len;
-
- chan = (struct p54_tx_control_channel *) hdr->data;
-
- hdr->magic1 = cpu_to_le16(0x8001);
-
- hdr->type = cpu_to_le16(P54_CONTROL_TYPE_CHANNEL_CHANGE);
-
- chan->flags = cpu_to_le16(0x1);
- chan->dwell = cpu_to_le16(0x0);
+ chan = (struct p54_scan *) skb_put(skb, sizeof(*chan));
+ memset(chan->padding1, 0, sizeof(chan->padding1));
+ chan->mode = cpu_to_le16(mode);
+ chan->dwell = cpu_to_le16(dwell);
for (i = 0; i < priv->iq_autocal_len; i++) {
if (priv->iq_autocal[i].freq != freq)
@@ -990,61 +1588,50 @@ static int p54_set_freq(struct ieee80211_hw *dev, __le16 freq)
}
entry += sizeof(__le16);
- chan->pa_points_per_curve =
- min(priv->curve_data->points_per_channel, (u8) 8);
-
- memcpy(chan->curve_data, entry, sizeof(*chan->curve_data) *
- chan->pa_points_per_curve);
+ chan->pa_points_per_curve = 8;
+ memset(chan->curve_data, 0, sizeof(*chan->curve_data));
+ memcpy(chan->curve_data, entry,
+ sizeof(struct p54_pa_curve_data_sample) *
+ min((u8)8, priv->curve_data->points_per_channel));
break;
}
if (priv->fw_var < 0x500) {
- data_len = P54_TX_CONTROL_CHANNEL_V1_LEN;
- chan->v1.rssical_mul = cpu_to_le16(130);
- chan->v1.rssical_add = cpu_to_le16(0xfe70);
+ chan->v1_rssi.mul = cpu_to_le16(priv->rssical_db[band].mul);
+ chan->v1_rssi.add = cpu_to_le16(priv->rssical_db[band].add);
} else {
- data_len = P54_TX_CONTROL_CHANNEL_V2_LEN;
- chan->v2.rssical_mul = cpu_to_le16(130);
- chan->v2.rssical_add = cpu_to_le16(0xfe70);
- chan->v2.basic_rate_mask = cpu_to_le32(0x15f);
+ chan->v2.rssi.mul = cpu_to_le16(priv->rssical_db[band].mul);
+ chan->v2.rssi.add = cpu_to_le16(priv->rssical_db[band].add);
+ chan->v2.basic_rate_mask = cpu_to_le32(priv->basic_rate_mask);
+ memset(chan->v2.rts_rates, 0, 8);
}
-
- hdr->len = cpu_to_le16(data_len);
- p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + data_len);
- priv->tx(dev, hdr, sizeof(*hdr) + data_len, 1);
+ priv->tx(dev, skb);
return 0;
err:
printk(KERN_ERR "%s: frequency change failed\n", wiphy_name(dev->wiphy));
- kfree(hdr);
+ kfree_skb(skb);
return -EINVAL;
}
static int p54_set_leds(struct ieee80211_hw *dev, int mode, int link, int act)
{
struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr;
- struct p54_tx_control_led *led;
+ struct sk_buff *skb;
+ struct p54_led *led;
- hdr = kzalloc(sizeof(*hdr) + sizeof(*led) +
- priv->tx_hdr_len, GFP_KERNEL);
- if (!hdr)
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*led) +
+ sizeof(struct p54_hdr), P54_CONTROL_TYPE_LED,
+ GFP_ATOMIC);
+ if (!skb)
return -ENOMEM;
- hdr = (void *)hdr + priv->tx_hdr_len;
- hdr->magic1 = cpu_to_le16(0x8001);
- hdr->len = cpu_to_le16(sizeof(*led));
- hdr->type = cpu_to_le16(P54_CONTROL_TYPE_LED);
- p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*led));
-
- led = (struct p54_tx_control_led *) hdr->data;
+ led = (struct p54_led *)skb_put(skb, sizeof(*led));
led->mode = cpu_to_le16(mode);
led->led_permanent = cpu_to_le16(link);
led->led_temporary = cpu_to_le16(act);
led->duration = cpu_to_le16(1000);
-
- priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*led), 1);
-
+ priv->tx(dev, skb);
return 0;
}
@@ -1056,88 +1643,144 @@ do { \
queue.txop = cpu_to_le16(_txop); \
} while(0)
-static void p54_init_vdcf(struct ieee80211_hw *dev)
+static int p54_set_edcf(struct ieee80211_hw *dev)
{
struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr;
- struct p54_tx_control_vdcf *vdcf;
-
- /* all USB V1 adapters need a extra headroom */
- hdr = (void *)priv->cached_vdcf + priv->tx_hdr_len;
- hdr->magic1 = cpu_to_le16(0x8001);
- hdr->len = cpu_to_le16(sizeof(*vdcf));
- hdr->type = cpu_to_le16(P54_CONTROL_TYPE_DCFINIT);
- hdr->req_id = cpu_to_le32(priv->rx_start);
-
- vdcf = (struct p54_tx_control_vdcf *) hdr->data;
-
- P54_SET_QUEUE(vdcf->queue[0], 0x0002, 0x0003, 0x0007, 47);
- P54_SET_QUEUE(vdcf->queue[1], 0x0002, 0x0007, 0x000f, 94);
- P54_SET_QUEUE(vdcf->queue[2], 0x0003, 0x000f, 0x03ff, 0);
- P54_SET_QUEUE(vdcf->queue[3], 0x0007, 0x000f, 0x03ff, 0);
+ struct sk_buff *skb;
+ struct p54_edcf *edcf;
+
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*edcf) +
+ sizeof(struct p54_hdr), P54_CONTROL_TYPE_DCFINIT,
+ GFP_ATOMIC);
+ if (!skb)
+ return -ENOMEM;
+
+ edcf = (struct p54_edcf *)skb_put(skb, sizeof(*edcf));
+ if (priv->use_short_slot) {
+ edcf->slottime = 9;
+ edcf->sifs = 0x10;
+ edcf->eofpad = 0x00;
+ } else {
+ edcf->slottime = 20;
+ edcf->sifs = 0x0a;
+ edcf->eofpad = 0x06;
+ }
+ /* (see prism54/isl_oid.h for further details) */
+ edcf->frameburst = cpu_to_le16(0);
+ edcf->round_trip_delay = cpu_to_le16(0);
+ edcf->flags = 0;
+ memset(edcf->mapping, 0, sizeof(edcf->mapping));
+ memcpy(edcf->queue, priv->qos_params, sizeof(edcf->queue));
+ priv->tx(dev, skb);
+ return 0;
}
-static void p54_set_vdcf(struct ieee80211_hw *dev)
+static int p54_beacon_tim(struct sk_buff *skb)
{
- struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr;
- struct p54_tx_control_vdcf *vdcf;
+ /*
+ * the good excuse for this mess is ... the firmware.
+ * The dummy TIM MUST be at the end of the beacon frame,
+ * because it'll be overwritten!
+ */
- hdr = (void *)priv->cached_vdcf + priv->tx_hdr_len;
+ struct ieee80211_mgmt *mgmt = (void *)skb->data;
+ u8 *pos, *end;
- p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*vdcf));
+ if (skb->len <= sizeof(mgmt))
+ return -EINVAL;
- vdcf = (struct p54_tx_control_vdcf *) hdr->data;
+ pos = (u8 *)mgmt->u.beacon.variable;
+ end = skb->data + skb->len;
+ while (pos < end) {
+ if (pos + 2 + pos[1] > end)
+ return -EINVAL;
- if (dev->conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME) {
- vdcf->slottime = 9;
- vdcf->magic1 = 0x10;
- vdcf->magic2 = 0x00;
- } else {
- vdcf->slottime = 20;
- vdcf->magic1 = 0x0a;
- vdcf->magic2 = 0x06;
- }
+ if (pos[0] == WLAN_EID_TIM) {
+ u8 dtim_len = pos[1];
+ u8 dtim_period = pos[3];
+ u8 *next = pos + 2 + dtim_len;
- /* (see prism54/isl_oid.h for further details) */
- vdcf->frameburst = cpu_to_le16(0);
+ if (dtim_len < 3)
+ return -EINVAL;
- priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*vdcf), 0);
+ memmove(pos, next, end - next);
+
+ if (dtim_len > 3)
+ skb_trim(skb, skb->len - (dtim_len - 3));
+
+ pos = end - (dtim_len + 2);
+
+ /* add the dummy at the end */
+ pos[0] = WLAN_EID_TIM;
+ pos[1] = 3;
+ pos[2] = 0;
+ pos[3] = dtim_period;
+ pos[4] = 0;
+ return 0;
+ }
+ pos += 2 + pos[1];
+ }
+ return 0;
}
-static int p54_start(struct ieee80211_hw *dev)
+static int p54_beacon_update(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif)
{
struct p54_common *priv = dev->priv;
- int err;
-
- if (!priv->cached_vdcf) {
- priv->cached_vdcf = kzalloc(sizeof(struct p54_tx_control_vdcf)+
- priv->tx_hdr_len + sizeof(struct p54_control_hdr),
- GFP_KERNEL);
+ struct sk_buff *beacon;
+ int ret;
- if (!priv->cached_vdcf)
- return -ENOMEM;
+ if (priv->cached_beacon) {
+ p54_tx_cancel(dev, priv->cached_beacon);
+ /* wait for the last beacon the be freed */
+ msleep(10);
}
- if (!priv->cached_stats) {
- priv->cached_stats = kzalloc(sizeof(struct p54_statistics) +
- priv->tx_hdr_len + sizeof(struct p54_control_hdr),
- GFP_KERNEL);
+ beacon = ieee80211_beacon_get(dev, vif);
+ if (!beacon)
+ return -ENOMEM;
+ ret = p54_beacon_tim(beacon);
+ if (ret)
+ return ret;
+ ret = p54_tx(dev, beacon);
+ if (ret)
+ return ret;
+ priv->cached_beacon = beacon;
+ priv->tsf_high32 = 0;
+ priv->tsf_low32 = 0;
- if (!priv->cached_stats) {
- kfree(priv->cached_vdcf);
- priv->cached_vdcf = NULL;
- return -ENOMEM;
- }
- }
+ return 0;
+}
+static int p54_start(struct ieee80211_hw *dev)
+{
+ struct p54_common *priv = dev->priv;
+ int err;
+
+ mutex_lock(&priv->conf_mutex);
err = priv->open(dev);
- if (!err)
- priv->mode = NL80211_IFTYPE_MONITOR;
+ if (err)
+ goto out;
+ P54_SET_QUEUE(priv->qos_params[0], 0x0002, 0x0003, 0x0007, 47);
+ P54_SET_QUEUE(priv->qos_params[1], 0x0002, 0x0007, 0x000f, 94);
+ P54_SET_QUEUE(priv->qos_params[2], 0x0003, 0x000f, 0x03ff, 0);
+ P54_SET_QUEUE(priv->qos_params[3], 0x0007, 0x000f, 0x03ff, 0);
+ err = p54_set_edcf(dev);
+ if (err)
+ goto out;
+
+ memset(priv->bssid, ~0, ETH_ALEN);
+ priv->mode = NL80211_IFTYPE_MONITOR;
+ err = p54_setup_mac(dev);
+ if (err) {
+ priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+ goto out;
+ }
- p54_init_vdcf(dev);
+ queue_delayed_work(dev->workqueue, &priv->work, 0);
- mod_timer(&priv->stats_timer, jiffies + HZ);
+out:
+ mutex_unlock(&priv->conf_mutex);
return err;
}
@@ -1146,12 +1789,18 @@ static void p54_stop(struct ieee80211_hw *dev)
struct p54_common *priv = dev->priv;
struct sk_buff *skb;
- del_timer(&priv->stats_timer);
+ mutex_lock(&priv->conf_mutex);
+ priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+ cancel_delayed_work_sync(&priv->work);
+ if (priv->cached_beacon)
+ p54_tx_cancel(dev, priv->cached_beacon);
+
+ priv->stop(dev);
while ((skb = skb_dequeue(&priv->tx_queue)))
kfree_skb(skb);
- priv->stop(dev);
+ priv->cached_beacon = NULL;
priv->tsf_high32 = priv->tsf_low32 = 0;
- priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+ mutex_unlock(&priv->conf_mutex);
}
static int p54_add_interface(struct ieee80211_hw *dev,
@@ -1159,32 +1808,28 @@ static int p54_add_interface(struct ieee80211_hw *dev,
{
struct p54_common *priv = dev->priv;
- if (priv->mode != NL80211_IFTYPE_MONITOR)
+ mutex_lock(&priv->conf_mutex);
+ if (priv->mode != NL80211_IFTYPE_MONITOR) {
+ mutex_unlock(&priv->conf_mutex);
return -EOPNOTSUPP;
+ }
switch (conf->type) {
case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_MESH_POINT:
priv->mode = conf->type;
break;
default:
+ mutex_unlock(&priv->conf_mutex);
return -EOPNOTSUPP;
}
memcpy(priv->mac_addr, conf->mac_addr, ETH_ALEN);
-
- p54_set_filter(dev, 0, NULL);
-
- switch (conf->type) {
- case NL80211_IFTYPE_STATION:
- p54_set_filter(dev, 1, NULL);
- break;
- default:
- BUG(); /* impossible */
- break;
- }
-
+ p54_setup_mac(dev);
p54_set_leds(dev, 1, 0, 0);
-
+ mutex_unlock(&priv->conf_mutex);
return 0;
}
@@ -1192,22 +1837,38 @@ static void p54_remove_interface(struct ieee80211_hw *dev,
struct ieee80211_if_init_conf *conf)
{
struct p54_common *priv = dev->priv;
+
+ mutex_lock(&priv->conf_mutex);
+ if (priv->cached_beacon)
+ p54_tx_cancel(dev, priv->cached_beacon);
priv->mode = NL80211_IFTYPE_MONITOR;
memset(priv->mac_addr, 0, ETH_ALEN);
- p54_set_filter(dev, 0, NULL);
+ memset(priv->bssid, 0, ETH_ALEN);
+ p54_setup_mac(dev);
+ mutex_unlock(&priv->conf_mutex);
}
-static int p54_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf)
+static int p54_config(struct ieee80211_hw *dev, u32 changed)
{
- int ret;
+ int ret = 0;
struct p54_common *priv = dev->priv;
+ struct ieee80211_conf *conf = &dev->conf;
mutex_lock(&priv->conf_mutex);
- priv->rx_antenna = (conf->antenna_sel_rx == 0) ?
- 2 : conf->antenna_sel_tx - 1;
- priv->output_power = conf->power_level << 2;
- ret = p54_set_freq(dev, cpu_to_le16(conf->channel->center_freq));
- p54_set_vdcf(dev);
+ if (changed & IEEE80211_CONF_CHANGE_POWER)
+ priv->output_power = conf->power_level << 2;
+ if (changed & IEEE80211_CONF_CHANGE_RADIO_ENABLED) {
+ ret = p54_setup_mac(dev);
+ if (ret)
+ goto out;
+ }
+ if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+ ret = p54_scan(dev, P54_SCAN_EXIT, 0);
+ if (ret)
+ goto out;
+ }
+
+out:
mutex_unlock(&priv->conf_mutex);
return ret;
}
@@ -1217,13 +1878,36 @@ static int p54_config_interface(struct ieee80211_hw *dev,
struct ieee80211_if_conf *conf)
{
struct p54_common *priv = dev->priv;
+ int ret = 0;
mutex_lock(&priv->conf_mutex);
- p54_set_filter(dev, 0, conf->bssid);
- p54_set_leds(dev, 1, !is_multicast_ether_addr(conf->bssid), 0);
- memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+ if (conf->changed & IEEE80211_IFCC_BSSID) {
+ memcpy(priv->bssid, conf->bssid, ETH_ALEN);
+ ret = p54_setup_mac(dev);
+ if (ret)
+ goto out;
+ }
+
+ if (conf->changed & IEEE80211_IFCC_BEACON) {
+ ret = p54_scan(dev, P54_SCAN_EXIT, 0);
+ if (ret)
+ goto out;
+ ret = p54_setup_mac(dev);
+ if (ret)
+ goto out;
+ ret = p54_beacon_update(dev, vif);
+ if (ret)
+ goto out;
+ ret = p54_set_edcf(dev);
+ if (ret)
+ goto out;
+ }
+
+ ret = p54_set_leds(dev, 1, !is_multicast_ether_addr(priv->bssid), 0);
+
+out:
mutex_unlock(&priv->conf_mutex);
- return 0;
+ return ret;
}
static void p54_configure_filter(struct ieee80211_hw *dev,
@@ -1233,94 +1917,78 @@ static void p54_configure_filter(struct ieee80211_hw *dev,
{
struct p54_common *priv = dev->priv;
- *total_flags &= FIF_BCN_PRBRESP_PROMISC |
- FIF_PROMISC_IN_BSS |
- FIF_FCSFAIL;
+ *total_flags &= FIF_PROMISC_IN_BSS |
+ (*total_flags & FIF_PROMISC_IN_BSS) ?
+ FIF_FCSFAIL : 0;
priv->filter_flags = *total_flags;
- if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
- if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
- p54_set_filter(dev, le16_to_cpu(priv->filter_type),
- NULL);
- else
- p54_set_filter(dev, le16_to_cpu(priv->filter_type),
- priv->bssid);
- }
-
- if (changed_flags & FIF_PROMISC_IN_BSS) {
- if (*total_flags & FIF_PROMISC_IN_BSS)
- p54_set_filter(dev, le16_to_cpu(priv->filter_type) |
- 0x8, NULL);
- else
- p54_set_filter(dev, le16_to_cpu(priv->filter_type) &
- ~0x8, priv->bssid);
- }
+ if (changed_flags & FIF_PROMISC_IN_BSS)
+ p54_setup_mac(dev);
}
static int p54_conf_tx(struct ieee80211_hw *dev, u16 queue,
const struct ieee80211_tx_queue_params *params)
{
struct p54_common *priv = dev->priv;
- struct p54_tx_control_vdcf *vdcf;
-
- vdcf = (struct p54_tx_control_vdcf *)(((struct p54_control_hdr *)
- ((void *)priv->cached_vdcf + priv->tx_hdr_len))->data);
+ int ret;
+ mutex_lock(&priv->conf_mutex);
if ((params) && !(queue > 4)) {
- P54_SET_QUEUE(vdcf->queue[queue], params->aifs,
+ P54_SET_QUEUE(priv->qos_params[queue], params->aifs,
params->cw_min, params->cw_max, params->txop);
+ ret = p54_set_edcf(dev);
} else
- return -EINVAL;
-
- p54_set_vdcf(dev);
-
- return 0;
+ ret = -EINVAL;
+ mutex_unlock(&priv->conf_mutex);
+ return ret;
}
static int p54_init_xbow_synth(struct ieee80211_hw *dev)
{
struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr;
- struct p54_tx_control_xbow_synth *xbow;
+ struct sk_buff *skb;
+ struct p54_xbow_synth *xbow;
- hdr = kzalloc(sizeof(*hdr) + sizeof(*xbow) +
- priv->tx_hdr_len, GFP_KERNEL);
- if (!hdr)
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*xbow) +
+ sizeof(struct p54_hdr),
+ P54_CONTROL_TYPE_XBOW_SYNTH_CFG,
+ GFP_KERNEL);
+ if (!skb)
return -ENOMEM;
- hdr = (void *)hdr + priv->tx_hdr_len;
- hdr->magic1 = cpu_to_le16(0x8001);
- hdr->len = cpu_to_le16(sizeof(*xbow));
- hdr->type = cpu_to_le16(P54_CONTROL_TYPE_XBOW_SYNTH_CFG);
- p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*xbow));
-
- xbow = (struct p54_tx_control_xbow_synth *) hdr->data;
+ xbow = (struct p54_xbow_synth *)skb_put(skb, sizeof(*xbow));
xbow->magic1 = cpu_to_le16(0x1);
xbow->magic2 = cpu_to_le16(0x2);
xbow->freq = cpu_to_le16(5390);
-
- priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*xbow), 1);
-
+ memset(xbow->padding, 0, sizeof(xbow->padding));
+ priv->tx(dev, skb);
return 0;
}
-static void p54_statistics_timer(unsigned long data)
+static void p54_work(struct work_struct *work)
{
- struct ieee80211_hw *dev = (struct ieee80211_hw *) data;
- struct p54_common *priv = dev->priv;
- struct p54_control_hdr *hdr;
- struct p54_statistics *stats;
+ struct p54_common *priv = container_of(work, struct p54_common,
+ work.work);
+ struct ieee80211_hw *dev = priv->hw;
+ struct sk_buff *skb;
- BUG_ON(!priv->cached_stats);
+ if (unlikely(priv->mode == NL80211_IFTYPE_UNSPECIFIED))
+ return ;
+
+ /*
+ * TODO: walk through tx_queue and do the following tasks
+ * 1. initiate bursts.
+ * 2. cancel stuck frames / reset the device if necessary.
+ */
- hdr = (void *)priv->cached_stats + priv->tx_hdr_len;
- hdr->magic1 = cpu_to_le16(0x8000);
- hdr->len = cpu_to_le16(sizeof(*stats));
- hdr->type = cpu_to_le16(P54_CONTROL_TYPE_STAT_READBACK);
- p54_assign_address(dev, NULL, hdr, sizeof(*hdr) + sizeof(*stats));
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL, sizeof(struct p54_hdr) +
+ sizeof(struct p54_statistics),
+ P54_CONTROL_TYPE_STAT_READBACK, GFP_KERNEL);
+ if (!skb)
+ return ;
- priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*stats), 0);
+ priv->tx(dev, skb);
}
static int p54_get_stats(struct ieee80211_hw *dev,
@@ -1328,17 +1996,7 @@ static int p54_get_stats(struct ieee80211_hw *dev,
{
struct p54_common *priv = dev->priv;
- del_timer(&priv->stats_timer);
- p54_statistics_timer((unsigned long)dev);
-
- if (!wait_for_completion_interruptible_timeout(&priv->stats_comp, HZ)) {
- printk(KERN_ERR "%s: device does not respond!\n",
- wiphy_name(dev->wiphy));
- return -EBUSY;
- }
-
memcpy(stats, &priv->stats, sizeof(*stats));
-
return 0;
}
@@ -1352,14 +2010,133 @@ static int p54_get_tx_stats(struct ieee80211_hw *dev,
return 0;
}
+static void p54_bss_info_changed(struct ieee80211_hw *dev,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *info,
+ u32 changed)
+{
+ struct p54_common *priv = dev->priv;
+
+ if (changed & BSS_CHANGED_ERP_SLOT) {
+ priv->use_short_slot = info->use_short_slot;
+ p54_set_edcf(dev);
+ }
+ if (changed & BSS_CHANGED_BASIC_RATES) {
+ if (dev->conf.channel->band == IEEE80211_BAND_5GHZ)
+ priv->basic_rate_mask = (info->basic_rates << 4);
+ else
+ priv->basic_rate_mask = info->basic_rates;
+ p54_setup_mac(dev);
+ if (priv->fw_var >= 0x500)
+ p54_scan(dev, P54_SCAN_EXIT, 0);
+ }
+ if (changed & BSS_CHANGED_ASSOC) {
+ if (info->assoc) {
+ priv->aid = info->aid;
+ priv->wakeup_timer = info->beacon_int *
+ info->dtim_period * 5;
+ p54_setup_mac(dev);
+ }
+ }
+
+}
+
+static int p54_set_key(struct ieee80211_hw *dev, enum set_key_cmd cmd,
+ const u8 *local_address, const u8 *address,
+ struct ieee80211_key_conf *key)
+{
+ struct p54_common *priv = dev->priv;
+ struct sk_buff *skb;
+ struct p54_keycache *rxkey;
+ u8 algo = 0;
+
+ if (modparam_nohwcrypt)
+ return -EOPNOTSUPP;
+
+ if (cmd == DISABLE_KEY)
+ algo = 0;
+ else {
+ switch (key->alg) {
+ case ALG_TKIP:
+ if (!(priv->privacy_caps & (BR_DESC_PRIV_CAP_MICHAEL |
+ BR_DESC_PRIV_CAP_TKIP)))
+ return -EOPNOTSUPP;
+ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+ algo = P54_CRYPTO_TKIPMICHAEL;
+ break;
+ case ALG_WEP:
+ if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_WEP))
+ return -EOPNOTSUPP;
+ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+ algo = P54_CRYPTO_WEP;
+ break;
+ case ALG_CCMP:
+ if (!(priv->privacy_caps & BR_DESC_PRIV_CAP_AESCCMP))
+ return -EOPNOTSUPP;
+ key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+ algo = P54_CRYPTO_AESCCMP;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ if (key->keyidx > priv->rx_keycache_size) {
+ /*
+ * The device supports the choosen algorithm, but the firmware
+ * does not provide enough key slots to store all of them.
+ * So, incoming frames have to be decoded by the mac80211 stack,
+ * but we can still offload encryption for outgoing frames.
+ */
+
+ return 0;
+ }
+
+ mutex_lock(&priv->conf_mutex);
+ skb = p54_alloc_skb(dev, P54_HDR_FLAG_CONTROL_OPSET, sizeof(*rxkey) +
+ sizeof(struct p54_hdr), P54_CONTROL_TYPE_RX_KEYCACHE,
+ GFP_ATOMIC);
+ if (!skb) {
+ mutex_unlock(&priv->conf_mutex);
+ return -ENOMEM;
+ }
+
+ /* TODO: some devices have 4 more free slots for rx keys */
+ rxkey = (struct p54_keycache *)skb_put(skb, sizeof(*rxkey));
+ rxkey->entry = key->keyidx;
+ rxkey->key_id = key->keyidx;
+ rxkey->key_type = algo;
+ if (address)
+ memcpy(rxkey->mac, address, ETH_ALEN);
+ else
+ memset(rxkey->mac, ~0, ETH_ALEN);
+ if (key->alg != ALG_TKIP) {
+ rxkey->key_len = min((u8)16, key->keylen);
+ memcpy(rxkey->key, key->key, rxkey->key_len);
+ } else {
+ rxkey->key_len = 24;
+ memcpy(rxkey->key, key->key, 16);
+ memcpy(&(rxkey->key[16]), &(key->key
+ [NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY]), 8);
+ }
+
+ priv->tx(dev, skb);
+ mutex_unlock(&priv->conf_mutex);
+ return 0;
+}
+
static const struct ieee80211_ops p54_ops = {
.tx = p54_tx,
.start = p54_start,
.stop = p54_stop,
.add_interface = p54_add_interface,
.remove_interface = p54_remove_interface,
+ .set_tim = p54_set_tim,
+ .sta_notify = p54_sta_notify,
+ .set_key = p54_set_key,
.config = p54_config,
.config_interface = p54_config_interface,
+ .bss_info_changed = p54_bss_info_changed,
.configure_filter = p54_configure_filter,
.conf_tx = p54_conf_tx,
.get_stats = p54_get_stats,
@@ -1376,32 +2153,43 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len)
return NULL;
priv = dev->priv;
+ priv->hw = dev;
priv->mode = NL80211_IFTYPE_UNSPECIFIED;
+ priv->basic_rate_mask = 0x15f;
skb_queue_head_init(&priv->tx_queue);
- dev->flags = IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING | /* not sure */
- IEEE80211_HW_RX_INCLUDES_FCS |
+ dev->flags = IEEE80211_HW_RX_INCLUDES_FCS |
IEEE80211_HW_SIGNAL_DBM |
IEEE80211_HW_NOISE_DBM;
- dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
+ dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_ADHOC) |
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_MESH_POINT);
dev->channel_change_time = 1000; /* TODO: find actual value */
-
- priv->tx_stats[0].limit = 1;
- priv->tx_stats[1].limit = 1;
- priv->tx_stats[2].limit = 1;
- priv->tx_stats[3].limit = 1;
- priv->tx_stats[4].limit = 5;
+ priv->tx_stats[0].limit = 1; /* Beacon queue */
+ priv->tx_stats[1].limit = 1; /* Probe queue for HW scan */
+ priv->tx_stats[2].limit = 3; /* queue for MLMEs */
+ priv->tx_stats[3].limit = 3; /* Broadcast / MC queue */
+ priv->tx_stats[4].limit = 5; /* Data */
dev->queues = 1;
priv->noise = -94;
- dev->extra_tx_headroom = sizeof(struct p54_control_hdr) + 4 +
- sizeof(struct p54_tx_control_allocdata);
+ /*
+ * We support at most 8 tries no matter which rate they're at,
+ * we cannot support max_rates * max_rate_tries as we set it
+ * here, but setting it correctly to 4/2 or so would limit us
+ * artificially if the RC algorithm wants just two rates, so
+ * let's say 4/7, we'll redistribute it at TX time, see the
+ * comments there.
+ */
+ dev->max_rates = 4;
+ dev->max_rate_tries = 7;
+ dev->extra_tx_headroom = sizeof(struct p54_hdr) + 4 +
+ sizeof(struct p54_tx_data);
mutex_init(&priv->conf_mutex);
init_completion(&priv->eeprom_comp);
- init_completion(&priv->stats_comp);
- setup_timer(&priv->stats_timer, p54_statistics_timer,
- (unsigned long)dev);
+ INIT_DELAYED_WORK(&priv->work, p54_work);
return dev;
}
@@ -1410,11 +2198,9 @@ EXPORT_SYMBOL_GPL(p54_init_common);
void p54_free_common(struct ieee80211_hw *dev)
{
struct p54_common *priv = dev->priv;
- kfree(priv->cached_stats);
kfree(priv->iq_autocal);
kfree(priv->output_limit);
kfree(priv->curve_data);
- kfree(priv->cached_vdcf);
}
EXPORT_SYMBOL_GPL(p54_free_common);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 23:48:16 +0000