diff options
Diffstat (limited to 'drivers/net/wireless/p54/p54common.c')
| -rw-r--r-- | drivers/net/wireless/p54/p54common.c | 1620 |
1 files changed, 1190 insertions, 430 deletions
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c index 827ca03..82354b9 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"); @@ -152,21 +158,21 @@ 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: @@ -182,8 +188,10 @@ 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; @@ -208,18 +216,35 @@ 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 +335,36 @@ 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 +375,6 @@ 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 +431,9 @@ 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 +464,40 @@ 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 +507,18 @@ 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 +530,9 @@ 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; @@ -469,36 +553,56 @@ 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; - 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; + if (hdr->rate & 0x10) + rx_status.flag |= RX_FLAG_SHORTPRE; rx_status.rate_idx = (dev->conf.channel->band == IEEE80211_BAND_2GHZ ? hdr->rate : (hdr->rate - 4)) & 0xf; rx_status.freq = freq; @@ -513,7 +617,7 @@ 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 +625,9 @@ 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 +636,197 @@ 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); + 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 +834,14 @@ 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 +851,50 @@ 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 +915,9 @@ 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 +933,14 @@ 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 +948,37 @@ 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 +993,102 @@ 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 +1106,422 @@ 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; - current_queue = &priv->tx_stats[skb_get_queue_mapping(skb) + 4]; - if (unlikely(current_queue->len > current_queue->limit)) + queue = skb_get_queue_mapping(skb); + + 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++; + } + + /* 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 (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; + + /* 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) { + crypt_offset += info->control.hw_key->iv_len; + 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; + } 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 +1562,50 @@ 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 +1617,144 @@ 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; + + memmove(pos, next, end - next); - priv->tx(dev, hdr, sizeof(*hdr) + sizeof(*vdcf), 0); + 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 +1763,18 @@ 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 +1782,28 @@ 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 +1811,38 @@ 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; 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 +1852,36 @@ 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 +1891,78 @@ 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 ; - 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)); + /* + * TODO: walk through tx_queue and do the following tasks + * 1. initiate bursts. + * 2. cancel stuck frames / reset the device if necessary. + */ + + 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 +1970,7 @@ 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 +1984,133 @@ 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 +2127,43 @@ 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 +2172,9 @@ 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); |
