#include "iwl-sta.h"
#include "iwl-calib.h"
-static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv *priv,
- struct iwl_tx_queue *txq);
/******************************************************************************
*
MODULE_AUTHOR(DRV_COPYRIGHT);
MODULE_LICENSE("GPL");
-__le16 *ieee80211_get_qos_ctrl(struct ieee80211_hdr *hdr)
-{
- u16 fc = le16_to_cpu(hdr->frame_control);
- int hdr_len = ieee80211_get_hdrlen(fc);
-
- if ((fc & 0x00cc) == (IEEE80211_STYPE_QOS_DATA | IEEE80211_FTYPE_DATA))
- return (__le16 *) ((u8 *) hdr + hdr_len - QOS_CONTROL_LEN);
- return NULL;
-}
-
static const struct ieee80211_supported_band *iwl_get_hw_mode(
struct iwl_priv *priv, enum ieee80211_band band)
{
return escaped;
}
-
-/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
- * DMA services
- *
- * Theory of operation
- *
- * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
- * of buffer descriptors, each of which points to one or more data buffers for
- * the device to read from or fill. Driver and device exchange status of each
- * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
- * entries in each circular buffer, to protect against confusing empty and full
- * queue states.
- *
- * The device reads or writes the data in the queues via the device's several
- * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
- *
- * For Tx queue, there are low mark and high mark limits. If, after queuing
- * the packet for Tx, free space become < low mark, Tx queue stopped. When
- * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
- * Tx queue resumed.
- *
- * The 4965 operates with up to 17 queues: One receive queue, one transmit
- * queue (#4) for sending commands to the device firmware, and 15 other
- * Tx queues that may be mapped to prioritized Tx DMA/FIFO channels.
- *
- * See more detailed info in iwl-4965-hw.h.
- ***************************************************/
-
-int iwl_queue_space(const struct iwl_queue *q)
-{
- int s = q->read_ptr - q->write_ptr;
-
- if (q->read_ptr > q->write_ptr)
- s -= q->n_bd;
-
- if (s <= 0)
- s += q->n_window;
- /* keep some reserve to not confuse empty and full situations */
- s -= 2;
- if (s < 0)
- s = 0;
- return s;
-}
-
-
-static inline int iwl_queue_used(const struct iwl_queue *q, int i)
-{
- return q->write_ptr > q->read_ptr ?
- (i >= q->read_ptr && i < q->write_ptr) :
- !(i < q->read_ptr && i >= q->write_ptr);
-}
-
-static inline u8 get_cmd_index(struct iwl_queue *q, u32 index, int is_huge)
-{
- /* This is for scan command, the big buffer at end of command array */
- if (is_huge)
- return q->n_window; /* must be power of 2 */
-
- /* Otherwise, use normal size buffers */
- return index & (q->n_window - 1);
-}
-
-const u8 iwl4965_broadcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-
/*************** STATION TABLE MANAGEMENT ****
* mac80211 should be examined to determine if sta_info is duplicating
* the functionality provided here
}
#endif
-/**
- * iwl4965_add_station_flags - Add station to tables in driver and device
- */
-u8 iwl4965_add_station_flags(struct iwl_priv *priv, const u8 *addr,
- int is_ap, u8 flags, void *ht_data)
-{
- int i;
- int index = IWL_INVALID_STATION;
- struct iwl_station_entry *station;
- unsigned long flags_spin;
- DECLARE_MAC_BUF(mac);
-
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- if (is_ap)
- index = IWL_AP_ID;
- else if (is_broadcast_ether_addr(addr))
- index = priv->hw_params.bcast_sta_id;
- else
- for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
- if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
- addr)) {
- index = i;
- break;
- }
-
- if (!priv->stations[i].used &&
- index == IWL_INVALID_STATION)
- index = i;
- }
-
-
- /* These two conditions have the same outcome, but keep them separate
- since they have different meanings */
- if (unlikely(index == IWL_INVALID_STATION)) {
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
- return index;
- }
-
- if (priv->stations[index].used &&
- !compare_ether_addr(priv->stations[index].sta.sta.addr, addr)) {
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
- return index;
- }
-
-
- IWL_DEBUG_ASSOC("Add STA ID %d: %s\n", index, print_mac(mac, addr));
- station = &priv->stations[index];
- station->used = 1;
- priv->num_stations++;
-
- /* Set up the REPLY_ADD_STA command to send to device */
- memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd));
- memcpy(station->sta.sta.addr, addr, ETH_ALEN);
- station->sta.mode = 0;
- station->sta.sta.sta_id = index;
- station->sta.station_flags = 0;
-
-#ifdef CONFIG_IWL4965_HT
- /* BCAST station and IBSS stations do not work in HT mode */
- if (index != priv->hw_params.bcast_sta_id &&
- priv->iw_mode != IEEE80211_IF_TYPE_IBSS)
- iwl4965_set_ht_add_station(priv, index,
- (struct ieee80211_ht_info *) ht_data);
-#endif /*CONFIG_IWL4965_HT*/
-
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
-
- /* Add station to device's station table */
- iwl_send_add_sta(priv, &station->sta, flags);
- return index;
-
-}
-
-
-
-/*************** HOST COMMAND QUEUE FUNCTIONS *****/
-
-/**
- * iwl4965_enqueue_hcmd - enqueue a uCode command
- * @priv: device private data point
- * @cmd: a point to the ucode command structure
- *
- * The function returns < 0 values to indicate the operation is
- * failed. On success, it turns the index (> 0) of command in the
- * command queue.
- */
-int iwl4965_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
-{
- struct iwl_tx_queue *txq = &priv->txq[IWL_CMD_QUEUE_NUM];
- struct iwl_queue *q = &txq->q;
- struct iwl_tfd_frame *tfd;
- u32 *control_flags;
- struct iwl_cmd *out_cmd;
- u32 idx;
- u16 fix_size;
- dma_addr_t phys_addr;
- int ret;
- unsigned long flags;
-
- cmd->len = priv->cfg->ops->utils->get_hcmd_size(cmd->id, cmd->len);
- fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
-
- /* If any of the command structures end up being larger than
- * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
- * we will need to increase the size of the TFD entries */
- BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
- !(cmd->meta.flags & CMD_SIZE_HUGE));
-
- if (iwl_is_rfkill(priv)) {
- IWL_DEBUG_INFO("Not sending command - RF KILL");
- return -EIO;
- }
-
- if (iwl_queue_space(q) < ((cmd->meta.flags & CMD_ASYNC) ? 2 : 1)) {
- IWL_ERROR("No space for Tx\n");
- return -ENOSPC;
- }
-
- spin_lock_irqsave(&priv->hcmd_lock, flags);
-
- tfd = &txq->bd[q->write_ptr];
- memset(tfd, 0, sizeof(*tfd));
-
- control_flags = (u32 *) tfd;
-
- idx = get_cmd_index(q, q->write_ptr, cmd->meta.flags & CMD_SIZE_HUGE);
- out_cmd = &txq->cmd[idx];
-
- out_cmd->hdr.cmd = cmd->id;
- memcpy(&out_cmd->meta, &cmd->meta, sizeof(cmd->meta));
- memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
-
- /* At this point, the out_cmd now has all of the incoming cmd
- * information */
-
- out_cmd->hdr.flags = 0;
- out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
- INDEX_TO_SEQ(q->write_ptr));
- if (out_cmd->meta.flags & CMD_SIZE_HUGE)
- out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME);
- phys_addr = txq->dma_addr_cmd + sizeof(txq->cmd[0]) * idx +
- offsetof(struct iwl_cmd, hdr);
- iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, fix_size);
-
- IWL_DEBUG_HC("Sending command %s (#%x), seq: 0x%04X, "
- "%d bytes at %d[%d]:%d\n",
- get_cmd_string(out_cmd->hdr.cmd),
- out_cmd->hdr.cmd, le16_to_cpu(out_cmd->hdr.sequence),
- fix_size, q->write_ptr, idx, IWL_CMD_QUEUE_NUM);
-
- txq->need_update = 1;
-
- /* Set up entry in queue's byte count circular buffer */
- priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, 0);
-
- /* Increment and update queue's write index */
- q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
- ret = iwl4965_tx_queue_update_write_ptr(priv, txq);
-
- spin_unlock_irqrestore(&priv->hcmd_lock, flags);
- return ret ? ret : idx;
-}
static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
{
}
-/**
- * iwl4965_rxon_add_station - add station into station table.
- *
- * there is only one AP station with id= IWL_AP_ID
- * NOTE: mutex must be held before calling this fnction
- */
-static int iwl4965_rxon_add_station(struct iwl_priv *priv,
- const u8 *addr, int is_ap)
-{
- u8 sta_id;
-
- /* Add station to device's station table */
-#ifdef CONFIG_IWL4965_HT
- struct ieee80211_conf *conf = &priv->hw->conf;
- struct ieee80211_ht_info *cur_ht_config = &conf->ht_conf;
-
- if ((is_ap) &&
- (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) &&
- (priv->iw_mode == IEEE80211_IF_TYPE_STA))
- sta_id = iwl4965_add_station_flags(priv, addr, is_ap,
- 0, cur_ht_config);
- else
-#endif /* CONFIG_IWL4965_HT */
- sta_id = iwl4965_add_station_flags(priv, addr, is_ap,
- 0, NULL);
-
- /* Set up default rate scaling table in device's station table */
- iwl4965_add_station(priv, addr, is_ap);
-
- return sta_id;
-}
-
/**
* iwl4965_check_rxon_cmd - validate RXON structure is valid
*
}
/* Add the broadcast address so we can send broadcast frames */
- if (iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0) ==
+ if (iwl_rxon_add_station(priv, iwl_bcast_addr, 0) ==
IWL_INVALID_STATION) {
IWL_ERROR("Error adding BROADCAST address for transmit.\n");
return -EIO;
* add the IWL_AP_ID to the station rate table */
if (iwl_is_associated(priv) &&
(priv->iw_mode == IEEE80211_IF_TYPE_STA)) {
- if (iwl4965_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1)
+ if (iwl_rxon_add_station(priv, priv->active_rxon.bssid_addr, 1)
== IWL_INVALID_STATION) {
IWL_ERROR("Error adding AP address for transmit.\n");
return -EIO;
return iwl_send_cmd(priv, &cmd);
}
-static void iwl4965_clear_free_frames(struct iwl_priv *priv)
+static void iwl_clear_free_frames(struct iwl_priv *priv)
{
struct list_head *element;
while (!list_empty(&priv->free_frames)) {
element = priv->free_frames.next;
list_del(element);
- kfree(list_entry(element, struct iwl4965_frame, list));
+ kfree(list_entry(element, struct iwl_frame, list));
priv->frames_count--;
}
}
}
-static struct iwl4965_frame *iwl4965_get_free_frame(struct iwl_priv *priv)
+static struct iwl_frame *iwl_get_free_frame(struct iwl_priv *priv)
{
- struct iwl4965_frame *frame;
+ struct iwl_frame *frame;
struct list_head *element;
if (list_empty(&priv->free_frames)) {
frame = kzalloc(sizeof(*frame), GFP_KERNEL);
element = priv->free_frames.next;
list_del(element);
- return list_entry(element, struct iwl4965_frame, list);
+ return list_entry(element, struct iwl_frame, list);
}
-static void iwl4965_free_frame(struct iwl_priv *priv, struct iwl4965_frame *frame)
+static void iwl_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
{
memset(frame, 0, sizeof(*frame));
list_add(&frame->list, &priv->free_frames);
/* Find lowest valid rate */
for (i = IWL_RATE_1M_INDEX; i != IWL_RATE_INVALID;
- i = iwl4965_rates[i].next_ieee) {
+ i = iwl_rates[i].next_ieee) {
if (rate_mask & (1 << i))
- return iwl4965_rates[i].plcp;
+ return iwl_rates[i].plcp;
}
/* No valid rate was found. Assign the lowest one */
static int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
{
- struct iwl4965_frame *frame;
+ struct iwl_frame *frame;
unsigned int frame_size;
int rc;
u8 rate;
- frame = iwl4965_get_free_frame(priv);
+ frame = iwl_get_free_frame(priv);
if (!frame) {
IWL_ERROR("Could not obtain free frame buffer for beacon "
rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
&frame->u.cmd[0]);
- iwl4965_free_frame(priv, frame);
+ iwl_free_frame(priv, frame);
return rc;
}
for (bit = 1, i = 0; i < IWL_RATE_COUNT; i++, bit <<= 1) {
if (bit & supported_rate) {
ret_rates |= bit;
- rates[*cnt] = iwl4965_rates[i].ieee |
+ rates[*cnt] = iwl_rates[i].ieee |
((bit & basic_rate) ? 0x80 : 0x00);
(*cnt)++;
(*left)--;
priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_MIMO_PS) >> 2);
if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
- iwl_conf->sgf |= 0x1;
+ iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
- iwl_conf->sgf |= 0x2;
+ iwl_conf->sgf |= HT_SHORT_GI_40MHZ;
iwl_conf->is_green_field = !!(ht_conf->cap & IEEE80211_HT_CAP_GRN_FLD);
iwl_conf->max_amsdu_size =
len += 24;
frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
- memcpy(frame->da, iwl4965_broadcast_addr, ETH_ALEN);
+ memcpy(frame->da, iwl_bcast_addr, ETH_ALEN);
memcpy(frame->sa, priv->mac_addr, ETH_ALEN);
- memcpy(frame->bssid, iwl4965_broadcast_addr, ETH_ALEN);
+ memcpy(frame->bssid, iwl_bcast_addr, ETH_ALEN);
frame->seq_ctrl = 0;
/* fill in our indirect SSID IE */
return 0;
}
-static void iwl4965_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
- struct ieee80211_tx_control *ctl,
- struct iwl_cmd *cmd,
- struct sk_buff *skb_frag,
- int sta_id)
-{
- struct iwl_hw_key *keyinfo = &priv->stations[sta_id].keyinfo;
- struct iwl_wep_key *wepkey;
- int keyidx = 0;
-
- BUG_ON(ctl->hw_key->hw_key_idx > 3);
-
- switch (keyinfo->alg) {
- case ALG_CCMP:
- cmd->cmd.tx.sec_ctl = TX_CMD_SEC_CCM;
- memcpy(cmd->cmd.tx.key, keyinfo->key, keyinfo->keylen);
- if (ctl->flags & IEEE80211_TXCTL_AMPDU)
- cmd->cmd.tx.tx_flags |= TX_CMD_FLG_AGG_CCMP_MSK;
- IWL_DEBUG_TX("tx_cmd with aes hwcrypto\n");
- break;
-
- case ALG_TKIP:
- cmd->cmd.tx.sec_ctl = TX_CMD_SEC_TKIP;
- ieee80211_get_tkip_key(keyinfo->conf, skb_frag,
- IEEE80211_TKIP_P2_KEY, cmd->cmd.tx.key);
- IWL_DEBUG_TX("tx_cmd with tkip hwcrypto\n");
- break;
-
- case ALG_WEP:
- wepkey = &priv->wep_keys[ctl->hw_key->hw_key_idx];
- cmd->cmd.tx.sec_ctl = 0;
- if (priv->default_wep_key) {
- /* the WEP key was sent as static */
- keyidx = ctl->hw_key->hw_key_idx;
- memcpy(&cmd->cmd.tx.key[3], wepkey->key,
- wepkey->key_size);
- if (wepkey->key_size == WEP_KEY_LEN_128)
- cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
- } else {
- /* the WEP key was sent as dynamic */
- keyidx = keyinfo->keyidx;
- memcpy(&cmd->cmd.tx.key[3], keyinfo->key,
- keyinfo->keylen);
- if (keyinfo->keylen == WEP_KEY_LEN_128)
- cmd->cmd.tx.sec_ctl |= TX_CMD_SEC_KEY128;
- }
-
- cmd->cmd.tx.sec_ctl |= (TX_CMD_SEC_WEP |
- (keyidx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT);
-
- IWL_DEBUG_TX("Configuring packet for WEP encryption "
- "with key %d\n", keyidx);
- break;
-
- default:
- printk(KERN_ERR "Unknown encode alg %d\n", keyinfo->alg);
- break;
- }
-}
-
-/*
- * handle build REPLY_TX command notification.
- */
-static void iwl4965_build_tx_cmd_basic(struct iwl_priv *priv,
- struct iwl_cmd *cmd,
- struct ieee80211_tx_control *ctrl,
- struct ieee80211_hdr *hdr,
- int is_unicast, u8 std_id)
-{
- __le16 *qc;
- u16 fc = le16_to_cpu(hdr->frame_control);
- __le32 tx_flags = cmd->cmd.tx.tx_flags;
-
- cmd->cmd.tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
- if (!(ctrl->flags & IEEE80211_TXCTL_NO_ACK)) {
- tx_flags |= TX_CMD_FLG_ACK_MSK;
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- if (ieee80211_is_probe_response(fc) &&
- !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
- tx_flags |= TX_CMD_FLG_TSF_MSK;
- } else {
- tx_flags &= (~TX_CMD_FLG_ACK_MSK);
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- }
-
- if (ieee80211_is_back_request(fc))
- tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK;
-
-
- cmd->cmd.tx.sta_id = std_id;
- if (ieee80211_get_morefrag(hdr))
- tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
-
- qc = ieee80211_get_qos_ctrl(hdr);
- if (qc) {
- cmd->cmd.tx.tid_tspec = (u8) (le16_to_cpu(*qc) & 0xf);
- tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
- } else
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
-
- if (ctrl->flags & IEEE80211_TXCTL_USE_RTS_CTS) {
- tx_flags |= TX_CMD_FLG_RTS_MSK;
- tx_flags &= ~TX_CMD_FLG_CTS_MSK;
- } else if (ctrl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
- tx_flags &= ~TX_CMD_FLG_RTS_MSK;
- tx_flags |= TX_CMD_FLG_CTS_MSK;
- }
-
- if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
- tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
-
- tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
- if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_ASSOC_REQ ||
- (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_REASSOC_REQ)
- cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3);
- else
- cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2);
- } else {
- cmd->cmd.tx.timeout.pm_frame_timeout = 0;
- }
-
- cmd->cmd.tx.driver_txop = 0;
- cmd->cmd.tx.tx_flags = tx_flags;
- cmd->cmd.tx.next_frame_len = 0;
-}
-static void iwl_update_tx_stats(struct iwl_priv *priv, u16 fc, u16 len)
-{
- /* 0 - mgmt, 1 - cnt, 2 - data */
- int idx = (fc & IEEE80211_FCTL_FTYPE) >> 2;
- priv->tx_stats[idx].cnt++;
- priv->tx_stats[idx].bytes += len;
-}
-/**
- * iwl4965_get_sta_id - Find station's index within station table
- *
- * If new IBSS station, create new entry in station table
- */
-static int iwl4965_get_sta_id(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr)
-{
- int sta_id;
- u16 fc = le16_to_cpu(hdr->frame_control);
- DECLARE_MAC_BUF(mac);
-
- /* If this frame is broadcast or management, use broadcast station id */
- if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
- is_multicast_ether_addr(hdr->addr1))
- return priv->hw_params.bcast_sta_id;
-
- switch (priv->iw_mode) {
-
- /* If we are a client station in a BSS network, use the special
- * AP station entry (that's the only station we communicate with) */
- case IEEE80211_IF_TYPE_STA:
- return IWL_AP_ID;
-
- /* If we are an AP, then find the station, or use BCAST */
- case IEEE80211_IF_TYPE_AP:
- sta_id = iwl_find_station(priv, hdr->addr1);
- if (sta_id != IWL_INVALID_STATION)
- return sta_id;
- return priv->hw_params.bcast_sta_id;
-
- /* If this frame is going out to an IBSS network, find the station,
- * or create a new station table entry */
- case IEEE80211_IF_TYPE_IBSS:
- sta_id = iwl_find_station(priv, hdr->addr1);
- if (sta_id != IWL_INVALID_STATION)
- return sta_id;
-
- /* Create new station table entry */
- sta_id = iwl4965_add_station_flags(priv, hdr->addr1,
- 0, CMD_ASYNC, NULL);
-
- if (sta_id != IWL_INVALID_STATION)
- return sta_id;
-
- IWL_DEBUG_DROP("Station %s not in station map. "
- "Defaulting to broadcast...\n",
- print_mac(mac, hdr->addr1));
- iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
- return priv->hw_params.bcast_sta_id;
-
- default:
- IWL_WARNING("Unknown mode of operation: %d", priv->iw_mode);
- return priv->hw_params.bcast_sta_id;
- }
-}
-
-/*
- * start REPLY_TX command process
- */
-static int iwl4965_tx_skb(struct iwl_priv *priv,
- struct sk_buff *skb, struct ieee80211_tx_control *ctl)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct iwl_tfd_frame *tfd;
- u32 *control_flags;
- int txq_id = ctl->queue;
- struct iwl_tx_queue *txq = NULL;
- struct iwl_queue *q = NULL;
- dma_addr_t phys_addr;
- dma_addr_t txcmd_phys;
- dma_addr_t scratch_phys;
- struct iwl_cmd *out_cmd = NULL;
- u16 len, idx, len_org;
- u8 id, hdr_len, unicast;
- u8 sta_id;
- u16 seq_number = 0;
- u16 fc;
- __le16 *qc;
- u8 wait_write_ptr = 0;
- unsigned long flags;
- int rc;
-
- spin_lock_irqsave(&priv->lock, flags);
- if (iwl_is_rfkill(priv)) {
- IWL_DEBUG_DROP("Dropping - RF KILL\n");
- goto drop_unlock;
- }
-
- if (!priv->vif) {
- IWL_DEBUG_DROP("Dropping - !priv->vif\n");
- goto drop_unlock;
- }
-
- if ((ctl->tx_rate->hw_value & 0xFF) == IWL_INVALID_RATE) {
- IWL_ERROR("ERROR: No TX rate available.\n");
- goto drop_unlock;
- }
-
- unicast = !is_multicast_ether_addr(hdr->addr1);
- id = 0;
-
- fc = le16_to_cpu(hdr->frame_control);
-
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (ieee80211_is_auth(fc))
- IWL_DEBUG_TX("Sending AUTH frame\n");
- else if (ieee80211_is_assoc_request(fc))
- IWL_DEBUG_TX("Sending ASSOC frame\n");
- else if (ieee80211_is_reassoc_request(fc))
- IWL_DEBUG_TX("Sending REASSOC frame\n");
-#endif
-
- /* drop all data frame if we are not associated */
- if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
- (!iwl_is_associated(priv) ||
- ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && !priv->assoc_id) ||
- !priv->assoc_station_added)) {
- IWL_DEBUG_DROP("Dropping - !iwl_is_associated\n");
- goto drop_unlock;
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- hdr_len = ieee80211_get_hdrlen(fc);
-
- /* Find (or create) index into station table for destination station */
- sta_id = iwl4965_get_sta_id(priv, hdr);
- if (sta_id == IWL_INVALID_STATION) {
- DECLARE_MAC_BUF(mac);
-
- IWL_DEBUG_DROP("Dropping - INVALID STATION: %s\n",
- print_mac(mac, hdr->addr1));
- goto drop;
- }
-
- IWL_DEBUG_TX("station Id %d\n", sta_id);
-
- qc = ieee80211_get_qos_ctrl(hdr);
- if (qc) {
- u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
- seq_number = priv->stations[sta_id].tid[tid].seq_number &
- IEEE80211_SCTL_SEQ;
- hdr->seq_ctrl = cpu_to_le16(seq_number) |
- (hdr->seq_ctrl &
- __constant_cpu_to_le16(IEEE80211_SCTL_FRAG));
- seq_number += 0x10;
-#ifdef CONFIG_IWL4965_HT
- /* aggregation is on for this <sta,tid> */
- if (ctl->flags & IEEE80211_TXCTL_AMPDU)
- txq_id = priv->stations[sta_id].tid[tid].agg.txq_id;
- priv->stations[sta_id].tid[tid].tfds_in_queue++;
-#endif /* CONFIG_IWL4965_HT */
- }
-
- /* Descriptor for chosen Tx queue */
- txq = &priv->txq[txq_id];
- q = &txq->q;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Set up first empty TFD within this queue's circular TFD buffer */
- tfd = &txq->bd[q->write_ptr];
- memset(tfd, 0, sizeof(*tfd));
- control_flags = (u32 *) tfd;
- idx = get_cmd_index(q, q->write_ptr, 0);
-
- /* Set up driver data for this TFD */
- memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
- txq->txb[q->write_ptr].skb[0] = skb;
- memcpy(&(txq->txb[q->write_ptr].status.control),
- ctl, sizeof(struct ieee80211_tx_control));
-
- /* Set up first empty entry in queue's array of Tx/cmd buffers */
- out_cmd = &txq->cmd[idx];
- memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
- memset(&out_cmd->cmd.tx, 0, sizeof(out_cmd->cmd.tx));
-
- /*
- * Set up the Tx-command (not MAC!) header.
- * Store the chosen Tx queue and TFD index within the sequence field;
- * after Tx, uCode's Tx response will return this value so driver can
- * locate the frame within the tx queue and do post-tx processing.
- */
- out_cmd->hdr.cmd = REPLY_TX;
- out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
- INDEX_TO_SEQ(q->write_ptr)));
-
- /* Copy MAC header from skb into command buffer */
- memcpy(out_cmd->cmd.tx.hdr, hdr, hdr_len);
-
- /*
- * Use the first empty entry in this queue's command buffer array
- * to contain the Tx command and MAC header concatenated together
- * (payload data will be in another buffer).
- * Size of this varies, due to varying MAC header length.
- * If end is not dword aligned, we'll have 2 extra bytes at the end
- * of the MAC header (device reads on dword boundaries).
- * We'll tell device about this padding later.
- */
- len = priv->hw_params.tx_cmd_len +
- sizeof(struct iwl_cmd_header) + hdr_len;
-
- len_org = len;
- len = (len + 3) & ~3;
-
- if (len_org != len)
- len_org = 1;
- else
- len_org = 0;
-
- /* Physical address of this Tx command's header (not MAC header!),
- * within command buffer array. */
- txcmd_phys = txq->dma_addr_cmd + sizeof(struct iwl_cmd) * idx +
- offsetof(struct iwl_cmd, hdr);
-
- /* Add buffer containing Tx command and MAC(!) header to TFD's
- * first entry */
- iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, txcmd_phys, len);
-
- if (!(ctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
- iwl4965_build_tx_cmd_hwcrypto(priv, ctl, out_cmd, skb, sta_id);
-
- /* Set up TFD's 2nd entry to point directly to remainder of skb,
- * if any (802.11 null frames have no payload). */
- len = skb->len - hdr_len;
- if (len) {
- phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
- len, PCI_DMA_TODEVICE);
- iwl4965_hw_txq_attach_buf_to_tfd(priv, tfd, phys_addr, len);
- }
-
- /* Tell 4965 about any 2-byte padding after MAC header */
- if (len_org)
- out_cmd->cmd.tx.tx_flags |= TX_CMD_FLG_MH_PAD_MSK;
-
- /* Total # bytes to be transmitted */
- len = (u16)skb->len;
- out_cmd->cmd.tx.len = cpu_to_le16(len);
-
- /* TODO need this for burst mode later on */
- iwl4965_build_tx_cmd_basic(priv, out_cmd, ctl, hdr, unicast, sta_id);
-
- /* set is_hcca to 0; it probably will never be implemented */
- iwl4965_hw_build_tx_cmd_rate(priv, out_cmd, ctl, hdr, sta_id, 0);
-
- iwl_update_tx_stats(priv, fc, len);
-
- scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) +
- offsetof(struct iwl4965_tx_cmd, scratch);
- out_cmd->cmd.tx.dram_lsb_ptr = cpu_to_le32(scratch_phys);
- out_cmd->cmd.tx.dram_msb_ptr = iwl_get_dma_hi_address(scratch_phys);
-
- if (!ieee80211_get_morefrag(hdr)) {
- txq->need_update = 1;
- if (qc) {
- u8 tid = (u8)(le16_to_cpu(*qc) & 0xf);
- priv->stations[sta_id].tid[tid].seq_number = seq_number;
- }
- } else {
- wait_write_ptr = 1;
- txq->need_update = 0;
- }
-
- iwl_print_hex_dump(priv, IWL_DL_TX, out_cmd->cmd.payload,
- sizeof(out_cmd->cmd.tx));
-
- iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)out_cmd->cmd.tx.hdr,
- ieee80211_get_hdrlen(fc));
-
- /* Set up entry for this TFD in Tx byte-count array */
- priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, len);
-
- /* Tell device the write index *just past* this latest filled TFD */
- q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
- rc = iwl4965_tx_queue_update_write_ptr(priv, txq);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (rc)
- return rc;
-
- if ((iwl_queue_space(q) < q->high_mark)
- && priv->mac80211_registered) {
- if (wait_write_ptr) {
- spin_lock_irqsave(&priv->lock, flags);
- txq->need_update = 1;
- iwl4965_tx_queue_update_write_ptr(priv, txq);
- spin_unlock_irqrestore(&priv->lock, flags);
- }
-
- ieee80211_stop_queue(priv->hw, ctl->queue);
- }
-
- return 0;
-
-drop_unlock:
- spin_unlock_irqrestore(&priv->lock, flags);
-drop:
- return -1;
-}
-
static void iwl4965_set_rate(struct iwl_priv *priv)
{
const struct ieee80211_supported_band *hw = NULL;
u32 status = le32_to_cpu(tx_resp->status);
#ifdef CONFIG_IWL4965_HT
int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION;
+ u16 fc;
struct ieee80211_hdr *hdr;
- __le16 *qc;
+ u8 *qc = NULL;
#endif
if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
#ifdef CONFIG_IWL4965_HT
hdr = iwl4965_tx_queue_get_hdr(priv, txq_id, index);
- qc = ieee80211_get_qos_ctrl(hdr);
-
- if (qc)
- tid = le16_to_cpu(*qc) & 0xf;
+ fc = le16_to_cpu(hdr->frame_control);
+ if (ieee80211_is_qos_data(fc)) {
+ qc = ieee80211_get_qos_ctrl(hdr, ieee80211_get_hdrlen(fc));
+ tid = qc[0] & 0xf;
+ }
sta_id = iwl4965_get_ra_sta_id(priv, hdr);
if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) {
return sig_qual;
}
-/**
- * iwl4965_tx_queue_update_write_ptr - Send new write index to hardware
- */
-static int iwl4965_tx_queue_update_write_ptr(struct iwl_priv *priv,
- struct iwl_tx_queue *txq)
-{
- u32 reg = 0;
- int rc = 0;
- int txq_id = txq->q.id;
-
- if (txq->need_update == 0)
- return rc;
-
- /* if we're trying to save power */
- if (test_bit(STATUS_POWER_PMI, &priv->status)) {
- /* wake up nic if it's powered down ...
- * uCode will wake up, and interrupt us again, so next
- * time we'll skip this part. */
- reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
-
- if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
- IWL_DEBUG_INFO("Requesting wakeup, GP1 = 0x%x\n", reg);
- iwl_set_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- return rc;
- }
-
- /* restore this queue's parameters in nic hardware. */
- rc = iwl_grab_nic_access(priv);
- if (rc)
- return rc;
- iwl_write_direct32(priv, HBUS_TARG_WRPTR,
- txq->q.write_ptr | (txq_id << 8));
- iwl_release_nic_access(priv);
-
- /* else not in power-save mode, uCode will never sleep when we're
- * trying to tx (during RFKILL, we're not trying to tx). */
- } else
- iwl_write32(priv, HBUS_TARG_WRPTR,
- txq->q.write_ptr | (txq_id << 8));
-
- txq->need_update = 0;
-
- return rc;
-}
-
#ifdef CONFIG_IWLWIFI_DEBUG
static void iwl4965_print_rx_config_cmd(struct iwl_priv *priv)
{
iwl_release_nic_access(priv);
}
-#define EVENT_START_OFFSET (4 * sizeof(u32))
-
-/**
- * iwl4965_print_event_log - Dump error event log to syslog
- *
- * NOTE: Must be called with iwl_grab_nic_access() already obtained!
- */
-static void iwl4965_print_event_log(struct iwl_priv *priv, u32 start_idx,
- u32 num_events, u32 mode)
-{
- u32 i;
- u32 base; /* SRAM byte address of event log header */
- u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
- u32 ptr; /* SRAM byte address of log data */
- u32 ev, time, data; /* event log data */
-
- if (num_events == 0)
- return;
-
- base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
-
- if (mode == 0)
- event_size = 2 * sizeof(u32);
- else
- event_size = 3 * sizeof(u32);
-
- ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
-
- /* "time" is actually "data" for mode 0 (no timestamp).
- * place event id # at far right for easier visual parsing. */
- for (i = 0; i < num_events; i++) {
- ev = iwl_read_targ_mem(priv, ptr);
- ptr += sizeof(u32);
- time = iwl_read_targ_mem(priv, ptr);
- ptr += sizeof(u32);
- if (mode == 0)
- IWL_ERROR("0x%08x\t%04u\n", time, ev); /* data, ev */
- else {
- data = iwl_read_targ_mem(priv, ptr);
- ptr += sizeof(u32);
- IWL_ERROR("%010u\t0x%08x\t%04u\n", time, data, ev);
- }
- }
-}
-
-static void iwl4965_dump_nic_event_log(struct iwl_priv *priv)
-{
- int rc;
- u32 base; /* SRAM byte address of event log header */
- u32 capacity; /* event log capacity in # entries */
- u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
- u32 num_wraps; /* # times uCode wrapped to top of log */
- u32 next_entry; /* index of next entry to be written by uCode */
- u32 size; /* # entries that we'll print */
-
- base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
- if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
- IWL_ERROR("Invalid event log pointer 0x%08X\n", base);
- return;
- }
-
- rc = iwl_grab_nic_access(priv);
- if (rc) {
- IWL_WARNING("Can not read from adapter at this time.\n");
- return;
- }
-
- /* event log header */
- capacity = iwl_read_targ_mem(priv, base);
- mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
- num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
- next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
-
- size = num_wraps ? capacity : next_entry;
-
- /* bail out if nothing in log */
- if (size == 0) {
- IWL_ERROR("Start IWL Event Log Dump: nothing in log\n");
- iwl_release_nic_access(priv);
- return;
- }
-
- IWL_ERROR("Start IWL Event Log Dump: display count %d, wraps %d\n",
- size, num_wraps);
-
- /* if uCode has wrapped back to top of log, start at the oldest entry,
- * i.e the next one that uCode would fill. */
- if (num_wraps)
- iwl4965_print_event_log(priv, next_entry,
- capacity - next_entry, mode);
-
- /* (then/else) start at top of log */
- iwl4965_print_event_log(priv, 0, next_entry, mode);
-
- iwl_release_nic_access(priv);
-}
-
/**
* iwl4965_irq_handle_error - called for HW or SW error interrupt from card
*/
#ifdef CONFIG_IWLWIFI_DEBUG
if (priv->debug_level & IWL_DL_FW_ERRORS) {
iwl4965_dump_nic_error_log(priv);
- iwl4965_dump_nic_event_log(priv);
+ iwl_dump_nic_event_log(priv);
iwl4965_print_rx_config_cmd(priv);
}
#endif
priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
iwl4965_commit_rxon(priv);
- iwl4965_rxon_add_station(priv, priv->bssid, 1);
+ iwl_rxon_add_station(priv, priv->bssid, 1);
spin_lock_irqsave(&priv->lock, flags);
priv->assoc_id = le16_to_cpu(priv->staging_rxon.assoc_id);
if (inta & CSR_INT_BIT_WAKEUP) {
IWL_DEBUG_ISR("Wakeup interrupt\n");
iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[0]);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[1]);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[2]);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[3]);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[4]);
- iwl4965_tx_queue_update_write_ptr(priv, &priv->txq[5]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[0]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[1]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[2]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[3]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[4]);
+ iwl_txq_update_write_ptr(priv, &priv->txq[5]);
handled |= CSR_INT_BIT_WAKEUP;
}
if (inta & CSR_INT_BIT_FH_TX) {
IWL_DEBUG_ISR("Tx interrupt\n");
handled |= CSR_INT_BIT_FH_TX;
+ /* FH finished to write, send event */
+ priv->ucode_write_complete = 1;
+ wake_up_interruptible(&priv->wait_command_queue);
}
if (inta & ~handled)
priv->ibss_beacon = NULL;
/* clear out any free frames */
- iwl4965_clear_free_frames(priv);
+ iwl_clear_free_frames(priv);
}
static void iwl4965_down(struct iwl_priv *priv)
/* clear out the station table */
iwlcore_clear_stations_table(priv);
- iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0);
- iwl4965_rxon_add_station(priv, priv->bssid, 0);
+ iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
+ iwl_rxon_add_station(priv, priv->bssid, 0);
iwl4965_rate_scale_init(priv->hw, IWL_STA_ID);
iwl4965_send_beacon_cmd(priv);
IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
ctl->tx_rate->bitrate);
- if (iwl4965_tx_skb(priv, skb, ctl))
+ if (iwl_tx_skb(priv, skb, ctl))
dev_kfree_skb_any(skb);
IWL_DEBUG_MAC80211("leave\n");
priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
iwl4965_commit_rxon(priv);
iwl4965_activate_qos(priv, 1);
- iwl4965_rxon_add_station(priv, iwl4965_broadcast_addr, 0);
+ iwl_rxon_add_station(priv, iwl_bcast_addr, 0);
}
iwl4965_send_beacon_cmd(priv);
else {
rc = iwl4965_commit_rxon(priv);
if ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && rc)
- iwl4965_rxon_add_station(
+ iwl_rxon_add_station(
priv, priv->active_rxon.bssid_addr, 1);
}
if (cmd == SET_KEY)
is_default_wep_key = !priv->key_mapping_key;
else
- is_default_wep_key = priv->default_wep_key;
+ is_default_wep_key =
+ (key->hw_key_idx == HW_KEY_DEFAULT);
}
switch (cmd) {
static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
-static ssize_t dump_event_log(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- char *p = (char *)buf;
-
- if (p[0] == '1')
- iwl4965_dump_nic_event_log((struct iwl_priv *)d->driver_data);
-
- return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
-
/*****************************************************************************
*
* driver setup and teardown
static struct attribute *iwl4965_sysfs_entries[] = {
&dev_attr_channels.attr,
&dev_attr_dump_errors.attr,
- &dev_attr_dump_events.attr,
&dev_attr_flags.attr,
&dev_attr_filter_flags.attr,
#ifdef CONFIG_IWL4965_SPECTRUM_MEASUREMENT
}
/*******************
- * 6. Setup hw/priv
+ * 6. Setup priv
*******************/
- err = iwl_setup(priv);
+ err = iwl_init_drv(priv);
if (err)
goto out_free_eeprom;
/* At this point both hw and priv are initialized. */
IWL_DEBUG_INFO("Radio disabled.\n");
}
- if (priv->cfg->mod_params->enable_qos)
- priv->qos_data.qos_enable = 1;
-
/********************
* 8. Setup services
********************/
err = sysfs_create_group(&pdev->dev.kobj, &iwl4965_attribute_group);
if (err) {
IWL_ERROR("failed to create sysfs device attributes\n");
- goto out_free_eeprom;
+ goto out_uninit_drv;
}
- err = iwl_dbgfs_register(priv, DRV_NAME);
- if (err) {
- IWL_ERROR("failed to create debugfs files\n");
- goto out_remove_sysfs;
- }
iwl4965_setup_deferred_work(priv);
iwl4965_setup_rx_handlers(priv);
pci_save_state(pdev);
pci_disable_device(pdev);
+ /**********************************
+ * 10. Setup and register mac80211
+ **********************************/
+
+ err = iwl_setup_mac(priv);
+ if (err)
+ goto out_remove_sysfs;
+
+ err = iwl_dbgfs_register(priv, DRV_NAME);
+ if (err)
+ IWL_ERROR("failed to create debugfs files\n");
+
/* notify iwlcore to init */
iwlcore_low_level_notify(priv, IWLCORE_INIT_EVT);
return 0;
out_remove_sysfs:
sysfs_remove_group(&pdev->dev.kobj, &iwl4965_attribute_group);
+ out_uninit_drv:
+ iwl_uninit_drv(priv);
out_free_eeprom:
iwl_eeprom_free(priv);
out_iounmap:
pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
- iwl_free_channel_map(priv);
- iwlcore_free_geos(priv);
+ iwl_uninit_drv(priv);
if (priv->ibss_beacon)
dev_kfree_skb(priv->ibss_beacon);
projects / linux-2.6-omap-h63xx.git / blobdiff