1 /******************************************************************************
3 * Copyright(c) 2003 - 2009 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/init.h>
33 #include <linux/pci.h>
34 #include <linux/dma-mapping.h>
35 #include <linux/delay.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/wireless.h>
39 #include <linux/firmware.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
43 #include <net/ieee80211_radiotap.h>
44 #include <net/lib80211.h>
45 #include <net/mac80211.h>
47 #include <asm/div64.h>
49 #define DRV_NAME "iwl3945"
52 #include "iwl-3945-fh.h"
53 #include "iwl-commands.h"
56 #include "iwl-helpers.h"
61 * module name, copyright, version, etc.
64 #define DRV_DESCRIPTION \
65 "Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
67 #ifdef CONFIG_IWLWIFI_DEBUG
73 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
79 #define IWL39_VERSION "1.2.26k" VD VS
80 #define DRV_COPYRIGHT "Copyright(c) 2003-2009 Intel Corporation"
81 #define DRV_AUTHOR "<ilw@linux.intel.com>"
82 #define DRV_VERSION IWL39_VERSION
85 MODULE_DESCRIPTION(DRV_DESCRIPTION);
86 MODULE_VERSION(DRV_VERSION);
87 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
88 MODULE_LICENSE("GPL");
90 /* module parameters */
91 struct iwl_mod_params iwl3945_mod_params = {
92 .num_of_queues = IWL39_NUM_QUEUES, /* Not used */
95 /* the rest are 0 by default */
99 * iwl3945_get_antenna_flags - Get antenna flags for RXON command
100 * @priv: eeprom and antenna fields are used to determine antenna flags
102 * priv->eeprom39 is used to determine if antenna AUX/MAIN are reversed
103 * iwl3945_mod_params.antenna specifies the antenna diversity mode:
105 * IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself
106 * IWL_ANTENNA_MAIN - Force MAIN antenna
107 * IWL_ANTENNA_AUX - Force AUX antenna
109 __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv)
111 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
113 switch (iwl3945_mod_params.antenna) {
114 case IWL_ANTENNA_DIVERSITY:
117 case IWL_ANTENNA_MAIN:
118 if (eeprom->antenna_switch_type)
119 return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
120 return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
122 case IWL_ANTENNA_AUX:
123 if (eeprom->antenna_switch_type)
124 return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
125 return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
128 /* bad antenna selector value */
129 IWL_ERR(priv, "Bad antenna selector value (0x%x)\n",
130 iwl3945_mod_params.antenna);
132 return 0; /* "diversity" is default if error */
135 static int iwl3945_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
136 struct ieee80211_key_conf *keyconf,
140 __le16 key_flags = 0;
143 key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
144 key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
146 if (sta_id == priv->hw_params.bcast_sta_id)
147 key_flags |= STA_KEY_MULTICAST_MSK;
149 keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
150 keyconf->hw_key_idx = keyconf->keyidx;
151 key_flags &= ~STA_KEY_FLG_INVALID;
153 spin_lock_irqsave(&priv->sta_lock, flags);
154 priv->stations[sta_id].keyinfo.alg = keyconf->alg;
155 priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
156 memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
159 memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
162 if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
163 == STA_KEY_FLG_NO_ENC)
164 priv->stations[sta_id].sta.key.key_offset =
165 iwl_get_free_ucode_key_index(priv);
166 /* else, we are overriding an existing key => no need to allocated room
169 WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
170 "no space for a new key");
172 priv->stations[sta_id].sta.key.key_flags = key_flags;
173 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
174 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
176 IWL_DEBUG_INFO(priv, "hwcrypto: modify ucode station key info\n");
178 ret = iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
180 spin_unlock_irqrestore(&priv->sta_lock, flags);
185 static int iwl3945_set_tkip_dynamic_key_info(struct iwl_priv *priv,
186 struct ieee80211_key_conf *keyconf,
192 static int iwl3945_set_wep_dynamic_key_info(struct iwl_priv *priv,
193 struct ieee80211_key_conf *keyconf,
199 static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id)
203 spin_lock_irqsave(&priv->sta_lock, flags);
204 memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl_hw_key));
205 memset(&priv->stations[sta_id].sta.key, 0,
206 sizeof(struct iwl4965_keyinfo));
207 priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
208 priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
209 priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
210 spin_unlock_irqrestore(&priv->sta_lock, flags);
212 IWL_DEBUG_INFO(priv, "hwcrypto: clear ucode station key info\n");
213 iwl_send_add_sta(priv, &priv->stations[sta_id].sta, 0);
217 static int iwl3945_set_dynamic_key(struct iwl_priv *priv,
218 struct ieee80211_key_conf *keyconf, u8 sta_id)
222 keyconf->hw_key_idx = HW_KEY_DYNAMIC;
224 switch (keyconf->alg) {
226 ret = iwl3945_set_ccmp_dynamic_key_info(priv, keyconf, sta_id);
229 ret = iwl3945_set_tkip_dynamic_key_info(priv, keyconf, sta_id);
232 ret = iwl3945_set_wep_dynamic_key_info(priv, keyconf, sta_id);
235 IWL_ERR(priv, "Unknown alg: %s alg = %d\n", __func__, keyconf->alg);
239 IWL_DEBUG_WEP(priv, "Set dynamic key: alg= %d len=%d idx=%d sta=%d ret=%d\n",
240 keyconf->alg, keyconf->keylen, keyconf->keyidx,
246 static int iwl3945_remove_static_key(struct iwl_priv *priv)
248 int ret = -EOPNOTSUPP;
253 static int iwl3945_set_static_key(struct iwl_priv *priv,
254 struct ieee80211_key_conf *key)
256 if (key->alg == ALG_WEP)
259 IWL_ERR(priv, "Static key invalid: alg %d\n", key->alg);
263 static void iwl3945_clear_free_frames(struct iwl_priv *priv)
265 struct list_head *element;
267 IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n",
270 while (!list_empty(&priv->free_frames)) {
271 element = priv->free_frames.next;
273 kfree(list_entry(element, struct iwl3945_frame, list));
274 priv->frames_count--;
277 if (priv->frames_count) {
278 IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
280 priv->frames_count = 0;
284 static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv)
286 struct iwl3945_frame *frame;
287 struct list_head *element;
288 if (list_empty(&priv->free_frames)) {
289 frame = kzalloc(sizeof(*frame), GFP_KERNEL);
291 IWL_ERR(priv, "Could not allocate frame!\n");
295 priv->frames_count++;
299 element = priv->free_frames.next;
301 return list_entry(element, struct iwl3945_frame, list);
304 static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame)
306 memset(frame, 0, sizeof(*frame));
307 list_add(&frame->list, &priv->free_frames);
310 unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
311 struct ieee80211_hdr *hdr,
315 if (!iwl_is_associated(priv) || !priv->ibss_beacon ||
316 ((priv->iw_mode != NL80211_IFTYPE_ADHOC) &&
317 (priv->iw_mode != NL80211_IFTYPE_AP)))
320 if (priv->ibss_beacon->len > left)
323 memcpy(hdr, priv->ibss_beacon->data, priv->ibss_beacon->len);
325 return priv->ibss_beacon->len;
328 static int iwl3945_send_beacon_cmd(struct iwl_priv *priv)
330 struct iwl3945_frame *frame;
331 unsigned int frame_size;
335 frame = iwl3945_get_free_frame(priv);
338 IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
343 rate = iwl_rate_get_lowest_plcp(priv);
345 frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate);
347 rc = iwl_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
350 iwl3945_free_frame(priv, frame);
355 static void iwl3945_unset_hw_params(struct iwl_priv *priv)
357 if (priv->shared_virt)
358 pci_free_consistent(priv->pci_dev,
359 sizeof(struct iwl3945_shared),
364 static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
365 struct ieee80211_tx_info *info,
367 struct sk_buff *skb_frag,
370 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
371 struct iwl_hw_key *keyinfo = &priv->stations[sta_id].keyinfo;
373 switch (keyinfo->alg) {
375 tx->sec_ctl = TX_CMD_SEC_CCM;
376 memcpy(tx->key, keyinfo->key, keyinfo->keylen);
377 IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n");
384 tx->sec_ctl = TX_CMD_SEC_WEP |
385 (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
387 if (keyinfo->keylen == 13)
388 tx->sec_ctl |= TX_CMD_SEC_KEY128;
390 memcpy(&tx->key[3], keyinfo->key, keyinfo->keylen);
392 IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption "
393 "with key %d\n", info->control.hw_key->hw_key_idx);
397 IWL_ERR(priv, "Unknown encode alg %d\n", keyinfo->alg);
403 * handle build REPLY_TX command notification.
405 static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv,
407 struct ieee80211_tx_info *info,
408 struct ieee80211_hdr *hdr, u8 std_id)
410 struct iwl3945_tx_cmd *tx = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
411 __le32 tx_flags = tx->tx_flags;
412 __le16 fc = hdr->frame_control;
413 u8 rc_flags = info->control.rates[0].flags;
415 tx->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
416 if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
417 tx_flags |= TX_CMD_FLG_ACK_MSK;
418 if (ieee80211_is_mgmt(fc))
419 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
420 if (ieee80211_is_probe_resp(fc) &&
421 !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
422 tx_flags |= TX_CMD_FLG_TSF_MSK;
424 tx_flags &= (~TX_CMD_FLG_ACK_MSK);
425 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
429 if (ieee80211_has_morefrags(fc))
430 tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
432 if (ieee80211_is_data_qos(fc)) {
433 u8 *qc = ieee80211_get_qos_ctl(hdr);
434 tx->tid_tspec = qc[0] & 0xf;
435 tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
437 tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
440 if (rc_flags & IEEE80211_TX_RC_USE_RTS_CTS) {
441 tx_flags |= TX_CMD_FLG_RTS_MSK;
442 tx_flags &= ~TX_CMD_FLG_CTS_MSK;
443 } else if (rc_flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
444 tx_flags &= ~TX_CMD_FLG_RTS_MSK;
445 tx_flags |= TX_CMD_FLG_CTS_MSK;
448 if ((tx_flags & TX_CMD_FLG_RTS_MSK) || (tx_flags & TX_CMD_FLG_CTS_MSK))
449 tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
451 tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
452 if (ieee80211_is_mgmt(fc)) {
453 if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
454 tx->timeout.pm_frame_timeout = cpu_to_le16(3);
456 tx->timeout.pm_frame_timeout = cpu_to_le16(2);
458 tx->timeout.pm_frame_timeout = 0;
459 #ifdef CONFIG_IWLWIFI_LEDS
460 priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len);
465 tx->tx_flags = tx_flags;
466 tx->next_frame_len = 0;
470 * start REPLY_TX command process
472 static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
474 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
475 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
476 struct iwl3945_tx_cmd *tx;
477 struct iwl_tx_queue *txq = NULL;
478 struct iwl_queue *q = NULL;
479 struct iwl_cmd *out_cmd = NULL;
480 dma_addr_t phys_addr;
481 dma_addr_t txcmd_phys;
482 int txq_id = skb_get_queue_mapping(skb);
483 u16 len, idx, len_org, hdr_len; /* TODO: len_org is not used */
490 u8 wait_write_ptr = 0;
495 spin_lock_irqsave(&priv->lock, flags);
496 if (iwl_is_rfkill(priv)) {
497 IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n");
501 if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) {
502 IWL_ERR(priv, "ERROR: No TX rate available.\n");
506 unicast = !is_multicast_ether_addr(hdr->addr1);
509 fc = hdr->frame_control;
511 #ifdef CONFIG_IWLWIFI_DEBUG
512 if (ieee80211_is_auth(fc))
513 IWL_DEBUG_TX(priv, "Sending AUTH frame\n");
514 else if (ieee80211_is_assoc_req(fc))
515 IWL_DEBUG_TX(priv, "Sending ASSOC frame\n");
516 else if (ieee80211_is_reassoc_req(fc))
517 IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
520 /* drop all data frame if we are not associated */
521 if (ieee80211_is_data(fc) &&
522 (!iwl_is_monitor_mode(priv)) && /* packet injection */
523 (!iwl_is_associated(priv) ||
524 ((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) {
525 IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n");
529 spin_unlock_irqrestore(&priv->lock, flags);
531 hdr_len = ieee80211_hdrlen(fc);
533 /* Find (or create) index into station table for destination station */
534 sta_id = iwl_get_sta_id(priv, hdr);
535 if (sta_id == IWL_INVALID_STATION) {
536 IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
541 IWL_DEBUG_RATE(priv, "station Id %d\n", sta_id);
543 if (ieee80211_is_data_qos(fc)) {
544 qc = ieee80211_get_qos_ctl(hdr);
545 tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
546 seq_number = priv->stations[sta_id].tid[tid].seq_number &
548 hdr->seq_ctrl = cpu_to_le16(seq_number) |
550 cpu_to_le16(IEEE80211_SCTL_FRAG));
554 /* Descriptor for chosen Tx queue */
555 txq = &priv->txq[txq_id];
558 spin_lock_irqsave(&priv->lock, flags);
560 idx = get_cmd_index(q, q->write_ptr, 0);
562 /* Set up driver data for this TFD */
563 memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
564 txq->txb[q->write_ptr].skb[0] = skb;
566 /* Init first empty entry in queue's array of Tx/cmd buffers */
567 out_cmd = txq->cmd[idx];
568 tx = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload;
569 memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
570 memset(tx, 0, sizeof(*tx));
573 * Set up the Tx-command (not MAC!) header.
574 * Store the chosen Tx queue and TFD index within the sequence field;
575 * after Tx, uCode's Tx response will return this value so driver can
576 * locate the frame within the tx queue and do post-tx processing.
578 out_cmd->hdr.cmd = REPLY_TX;
579 out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
580 INDEX_TO_SEQ(q->write_ptr)));
582 /* Copy MAC header from skb into command buffer */
583 memcpy(tx->hdr, hdr, hdr_len);
586 if (info->control.hw_key)
587 iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, sta_id);
589 /* TODO need this for burst mode later on */
590 iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id);
592 /* set is_hcca to 0; it probably will never be implemented */
593 iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0);
595 /* Total # bytes to be transmitted */
597 tx->len = cpu_to_le16(len);
600 tx->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
601 tx->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
603 if (!ieee80211_has_morefrags(hdr->frame_control)) {
604 txq->need_update = 1;
606 priv->stations[sta_id].tid[tid].seq_number = seq_number;
609 txq->need_update = 0;
612 IWL_DEBUG_TX(priv, "sequence nr = 0X%x \n",
613 le16_to_cpu(out_cmd->hdr.sequence));
614 IWL_DEBUG_TX(priv, "tx_flags = 0X%x \n", le32_to_cpu(tx->tx_flags));
615 iwl_print_hex_dump(priv, IWL_DL_TX, tx, sizeof(*tx));
616 iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx->hdr,
617 ieee80211_hdrlen(fc));
620 * Use the first empty entry in this queue's command buffer array
621 * to contain the Tx command and MAC header concatenated together
622 * (payload data will be in another buffer).
623 * Size of this varies, due to varying MAC header length.
624 * If end is not dword aligned, we'll have 2 extra bytes at the end
625 * of the MAC header (device reads on dword boundaries).
626 * We'll tell device about this padding later.
628 len = sizeof(struct iwl3945_tx_cmd) +
629 sizeof(struct iwl_cmd_header) + hdr_len;
632 len = (len + 3) & ~3;
639 /* Physical address of this Tx command's header (not MAC header!),
640 * within command buffer array. */
641 txcmd_phys = pci_map_single(priv->pci_dev, &out_cmd->hdr,
642 len, PCI_DMA_TODEVICE);
643 /* we do not map meta data ... so we can safely access address to
644 * provide to unmap command*/
645 pci_unmap_addr_set(&out_cmd->meta, mapping, txcmd_phys);
646 pci_unmap_len_set(&out_cmd->meta, len, len);
648 /* Add buffer containing Tx command and MAC(!) header to TFD's
650 priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
651 txcmd_phys, len, 1, 0);
654 /* Set up TFD's 2nd entry to point directly to remainder of skb,
655 * if any (802.11 null frames have no payload). */
656 len = skb->len - hdr_len;
658 phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
659 len, PCI_DMA_TODEVICE);
660 priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
666 /* Tell device the write index *just past* this latest filled TFD */
667 q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd);
668 rc = iwl_txq_update_write_ptr(priv, txq);
669 spin_unlock_irqrestore(&priv->lock, flags);
674 if ((iwl_queue_space(q) < q->high_mark)
675 && priv->mac80211_registered) {
676 if (wait_write_ptr) {
677 spin_lock_irqsave(&priv->lock, flags);
678 txq->need_update = 1;
679 iwl_txq_update_write_ptr(priv, txq);
680 spin_unlock_irqrestore(&priv->lock, flags);
683 iwl_stop_queue(priv, skb_get_queue_mapping(skb));
689 spin_unlock_irqrestore(&priv->lock, flags);
694 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
696 #include "iwl-spectrum.h"
698 #define BEACON_TIME_MASK_LOW 0x00FFFFFF
699 #define BEACON_TIME_MASK_HIGH 0xFF000000
700 #define TIME_UNIT 1024
703 * extended beacon time format
704 * time in usec will be changed into a 32-bit value in 8:24 format
705 * the high 1 byte is the beacon counts
706 * the lower 3 bytes is the time in usec within one beacon interval
709 static u32 iwl3945_usecs_to_beacons(u32 usec, u32 beacon_interval)
713 u32 interval = beacon_interval * 1024;
715 if (!interval || !usec)
718 quot = (usec / interval) & (BEACON_TIME_MASK_HIGH >> 24);
719 rem = (usec % interval) & BEACON_TIME_MASK_LOW;
721 return (quot << 24) + rem;
724 /* base is usually what we get from ucode with each received frame,
725 * the same as HW timer counter counting down
728 static __le32 iwl3945_add_beacon_time(u32 base, u32 addon, u32 beacon_interval)
730 u32 base_low = base & BEACON_TIME_MASK_LOW;
731 u32 addon_low = addon & BEACON_TIME_MASK_LOW;
732 u32 interval = beacon_interval * TIME_UNIT;
733 u32 res = (base & BEACON_TIME_MASK_HIGH) +
734 (addon & BEACON_TIME_MASK_HIGH);
736 if (base_low > addon_low)
737 res += base_low - addon_low;
738 else if (base_low < addon_low) {
739 res += interval + base_low - addon_low;
744 return cpu_to_le32(res);
747 static int iwl3945_get_measurement(struct iwl_priv *priv,
748 struct ieee80211_measurement_params *params,
751 struct iwl_spectrum_cmd spectrum;
752 struct iwl_rx_packet *res;
753 struct iwl_host_cmd cmd = {
754 .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
755 .data = (void *)&spectrum,
756 .meta.flags = CMD_WANT_SKB,
758 u32 add_time = le64_to_cpu(params->start_time);
760 int spectrum_resp_status;
761 int duration = le16_to_cpu(params->duration);
763 if (iwl_is_associated(priv))
765 iwl3945_usecs_to_beacons(
766 le64_to_cpu(params->start_time) - priv->last_tsf,
767 le16_to_cpu(priv->rxon_timing.beacon_interval));
769 memset(&spectrum, 0, sizeof(spectrum));
771 spectrum.channel_count = cpu_to_le16(1);
773 RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
774 spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
775 cmd.len = sizeof(spectrum);
776 spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
778 if (iwl_is_associated(priv))
779 spectrum.start_time =
780 iwl3945_add_beacon_time(priv->last_beacon_time,
782 le16_to_cpu(priv->rxon_timing.beacon_interval));
784 spectrum.start_time = 0;
786 spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
787 spectrum.channels[0].channel = params->channel;
788 spectrum.channels[0].type = type;
789 if (priv->active_rxon.flags & RXON_FLG_BAND_24G_MSK)
790 spectrum.flags |= RXON_FLG_BAND_24G_MSK |
791 RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
793 rc = iwl_send_cmd_sync(priv, &cmd);
797 res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
798 if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
799 IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n");
803 spectrum_resp_status = le16_to_cpu(res->u.spectrum.status);
804 switch (spectrum_resp_status) {
805 case 0: /* Command will be handled */
806 if (res->u.spectrum.id != 0xff) {
807 IWL_DEBUG_INFO(priv, "Replaced existing measurement: %d\n",
809 priv->measurement_status &= ~MEASUREMENT_READY;
811 priv->measurement_status |= MEASUREMENT_ACTIVE;
815 case 1: /* Command will not be handled */
820 dev_kfree_skb_any(cmd.meta.u.skb);
826 static void iwl3945_rx_reply_alive(struct iwl_priv *priv,
827 struct iwl_rx_mem_buffer *rxb)
829 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
830 struct iwl_alive_resp *palive;
831 struct delayed_work *pwork;
833 palive = &pkt->u.alive_frame;
835 IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision "
837 palive->is_valid, palive->ver_type,
838 palive->ver_subtype);
840 if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
841 IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
842 memcpy(&priv->card_alive_init, &pkt->u.alive_frame,
843 sizeof(struct iwl_alive_resp));
844 pwork = &priv->init_alive_start;
846 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
847 memcpy(&priv->card_alive, &pkt->u.alive_frame,
848 sizeof(struct iwl_alive_resp));
849 pwork = &priv->alive_start;
850 iwl3945_disable_events(priv);
853 /* We delay the ALIVE response by 5ms to
854 * give the HW RF Kill time to activate... */
855 if (palive->is_valid == UCODE_VALID_OK)
856 queue_delayed_work(priv->workqueue, pwork,
857 msecs_to_jiffies(5));
859 IWL_WARN(priv, "uCode did not respond OK.\n");
862 static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv,
863 struct iwl_rx_mem_buffer *rxb)
865 #ifdef CONFIG_IWLWIFI_DEBUG
866 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
869 IWL_DEBUG_RX(priv, "Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
873 static void iwl3945_bg_beacon_update(struct work_struct *work)
875 struct iwl_priv *priv =
876 container_of(work, struct iwl_priv, beacon_update);
877 struct sk_buff *beacon;
879 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
880 beacon = ieee80211_beacon_get(priv->hw, priv->vif);
883 IWL_ERR(priv, "update beacon failed\n");
887 mutex_lock(&priv->mutex);
888 /* new beacon skb is allocated every time; dispose previous.*/
889 if (priv->ibss_beacon)
890 dev_kfree_skb(priv->ibss_beacon);
892 priv->ibss_beacon = beacon;
893 mutex_unlock(&priv->mutex);
895 iwl3945_send_beacon_cmd(priv);
898 static void iwl3945_rx_beacon_notif(struct iwl_priv *priv,
899 struct iwl_rx_mem_buffer *rxb)
901 #ifdef CONFIG_IWLWIFI_DEBUG
902 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
903 struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status);
904 u8 rate = beacon->beacon_notify_hdr.rate;
906 IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d "
907 "tsf %d %d rate %d\n",
908 le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
909 beacon->beacon_notify_hdr.failure_frame,
910 le32_to_cpu(beacon->ibss_mgr_status),
911 le32_to_cpu(beacon->high_tsf),
912 le32_to_cpu(beacon->low_tsf), rate);
915 if ((priv->iw_mode == NL80211_IFTYPE_AP) &&
916 (!test_bit(STATUS_EXIT_PENDING, &priv->status)))
917 queue_work(priv->workqueue, &priv->beacon_update);
920 /* Handle notification from uCode that card's power state is changing
921 * due to software, hardware, or critical temperature RFKILL */
922 static void iwl3945_rx_card_state_notif(struct iwl_priv *priv,
923 struct iwl_rx_mem_buffer *rxb)
925 struct iwl_rx_packet *pkt = (void *)rxb->skb->data;
926 u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
927 unsigned long status = priv->status;
929 IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s\n",
930 (flags & HW_CARD_DISABLED) ? "Kill" : "On",
931 (flags & SW_CARD_DISABLED) ? "Kill" : "On");
933 iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
934 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
936 if (flags & HW_CARD_DISABLED)
937 set_bit(STATUS_RF_KILL_HW, &priv->status);
939 clear_bit(STATUS_RF_KILL_HW, &priv->status);
942 iwl_scan_cancel(priv);
944 if ((test_bit(STATUS_RF_KILL_HW, &status) !=
945 test_bit(STATUS_RF_KILL_HW, &priv->status)))
946 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
947 test_bit(STATUS_RF_KILL_HW, &priv->status));
949 wake_up_interruptible(&priv->wait_command_queue);
953 * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
955 * Setup the RX handlers for each of the reply types sent from the uCode
958 * This function chains into the hardware specific files for them to setup
959 * any hardware specific handlers as well.
961 static void iwl3945_setup_rx_handlers(struct iwl_priv *priv)
963 priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive;
964 priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta;
965 priv->rx_handlers[REPLY_ERROR] = iwl_rx_reply_error;
966 priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_rx_csa;
967 priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_rx_pm_sleep_notif;
968 priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
969 iwl_rx_pm_debug_statistics_notif;
970 priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif;
973 * The same handler is used for both the REPLY to a discrete
974 * statistics request from the host as well as for the periodic
975 * statistics notifications (after received beacons) from the uCode.
977 priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_hw_rx_statistics;
978 priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics;
980 iwl_setup_spectrum_handlers(priv);
981 iwl_setup_rx_scan_handlers(priv);
982 priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif;
984 /* Set up hardware specific Rx handlers */
985 iwl3945_hw_rx_handler_setup(priv);
988 /************************** RX-FUNCTIONS ****************************/
990 * Rx theory of operation
992 * The host allocates 32 DMA target addresses and passes the host address
993 * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
997 * The host/firmware share two index registers for managing the Rx buffers.
999 * The READ index maps to the first position that the firmware may be writing
1000 * to -- the driver can read up to (but not including) this position and get
1002 * The READ index is managed by the firmware once the card is enabled.
1004 * The WRITE index maps to the last position the driver has read from -- the
1005 * position preceding WRITE is the last slot the firmware can place a packet.
1007 * The queue is empty (no good data) if WRITE = READ - 1, and is full if
1010 * During initialization, the host sets up the READ queue position to the first
1011 * INDEX position, and WRITE to the last (READ - 1 wrapped)
1013 * When the firmware places a packet in a buffer, it will advance the READ index
1014 * and fire the RX interrupt. The driver can then query the READ index and
1015 * process as many packets as possible, moving the WRITE index forward as it
1016 * resets the Rx queue buffers with new memory.
1018 * The management in the driver is as follows:
1019 * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
1020 * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
1021 * to replenish the iwl->rxq->rx_free.
1022 * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
1023 * iwl->rxq is replenished and the READ INDEX is updated (updating the
1024 * 'processed' and 'read' driver indexes as well)
1025 * + A received packet is processed and handed to the kernel network stack,
1026 * detached from the iwl->rxq. The driver 'processed' index is updated.
1027 * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
1028 * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
1029 * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
1030 * were enough free buffers and RX_STALLED is set it is cleared.
1035 * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
1036 * iwl3945_rx_queue_restock
1037 * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
1038 * queue, updates firmware pointers, and updates
1039 * the WRITE index. If insufficient rx_free buffers
1040 * are available, schedules iwl3945_rx_replenish
1042 * -- enable interrupts --
1043 * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
1044 * READ INDEX, detaching the SKB from the pool.
1045 * Moves the packet buffer from queue to rx_used.
1046 * Calls iwl3945_rx_queue_restock to refill any empty
1053 * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
1055 static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv,
1056 dma_addr_t dma_addr)
1058 return cpu_to_le32((u32)dma_addr);
1062 * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
1064 * If there are slots in the RX queue that need to be restocked,
1065 * and we have free pre-allocated buffers, fill the ranks as much
1066 * as we can, pulling from rx_free.
1068 * This moves the 'write' index forward to catch up with 'processed', and
1069 * also updates the memory address in the firmware to reference the new
1072 static int iwl3945_rx_queue_restock(struct iwl_priv *priv)
1074 struct iwl_rx_queue *rxq = &priv->rxq;
1075 struct list_head *element;
1076 struct iwl_rx_mem_buffer *rxb;
1077 unsigned long flags;
1080 spin_lock_irqsave(&rxq->lock, flags);
1081 write = rxq->write & ~0x7;
1082 while ((iwl_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
1083 /* Get next free Rx buffer, remove from free list */
1084 element = rxq->rx_free.next;
1085 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
1088 /* Point to Rx buffer via next RBD in circular buffer */
1089 rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->real_dma_addr);
1090 rxq->queue[rxq->write] = rxb;
1091 rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
1094 spin_unlock_irqrestore(&rxq->lock, flags);
1095 /* If the pre-allocated buffer pool is dropping low, schedule to
1097 if (rxq->free_count <= RX_LOW_WATERMARK)
1098 queue_work(priv->workqueue, &priv->rx_replenish);
1101 /* If we've added more space for the firmware to place data, tell it.
1102 * Increment device's write pointer in multiples of 8. */
1103 if ((rxq->write_actual != (rxq->write & ~0x7))
1104 || (abs(rxq->write - rxq->read) > 7)) {
1105 spin_lock_irqsave(&rxq->lock, flags);
1106 rxq->need_update = 1;
1107 spin_unlock_irqrestore(&rxq->lock, flags);
1108 rc = iwl_rx_queue_update_write_ptr(priv, rxq);
1117 * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
1119 * When moving to rx_free an SKB is allocated for the slot.
1121 * Also restock the Rx queue via iwl3945_rx_queue_restock.
1122 * This is called as a scheduled work item (except for during initialization)
1124 static void iwl3945_rx_allocate(struct iwl_priv *priv, gfp_t priority)
1126 struct iwl_rx_queue *rxq = &priv->rxq;
1127 struct list_head *element;
1128 struct iwl_rx_mem_buffer *rxb;
1129 unsigned long flags;
1132 spin_lock_irqsave(&rxq->lock, flags);
1134 if (list_empty(&rxq->rx_used)) {
1135 spin_unlock_irqrestore(&rxq->lock, flags);
1139 element = rxq->rx_used.next;
1140 rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
1142 spin_unlock_irqrestore(&rxq->lock, flags);
1144 /* Alloc a new receive buffer */
1146 alloc_skb(priv->hw_params.rx_buf_size,
1149 if (net_ratelimit())
1150 IWL_CRIT(priv, ": Can not allocate SKB buffers\n");
1151 /* We don't reschedule replenish work here -- we will
1152 * call the restock method and if it still needs
1153 * more buffers it will schedule replenish */
1157 /* If radiotap head is required, reserve some headroom here.
1158 * The physical head count is a variable rx_stats->phy_count.
1159 * We reserve 4 bytes here. Plus these extra bytes, the
1160 * headroom of the physical head should be enough for the
1161 * radiotap head that iwl3945 supported. See iwl3945_rt.
1163 skb_reserve(rxb->skb, 4);
1165 /* Get physical address of RB/SKB */
1166 rxb->real_dma_addr = pci_map_single(priv->pci_dev,
1168 priv->hw_params.rx_buf_size,
1169 PCI_DMA_FROMDEVICE);
1171 spin_lock_irqsave(&rxq->lock, flags);
1172 list_add_tail(&rxb->list, &rxq->rx_free);
1173 priv->alloc_rxb_skb++;
1175 spin_unlock_irqrestore(&rxq->lock, flags);
1179 void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
1181 unsigned long flags;
1183 spin_lock_irqsave(&rxq->lock, flags);
1184 INIT_LIST_HEAD(&rxq->rx_free);
1185 INIT_LIST_HEAD(&rxq->rx_used);
1186 /* Fill the rx_used queue with _all_ of the Rx buffers */
1187 for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
1188 /* In the reset function, these buffers may have been allocated
1189 * to an SKB, so we need to unmap and free potential storage */
1190 if (rxq->pool[i].skb != NULL) {
1191 pci_unmap_single(priv->pci_dev,
1192 rxq->pool[i].real_dma_addr,
1193 priv->hw_params.rx_buf_size,
1194 PCI_DMA_FROMDEVICE);
1195 priv->alloc_rxb_skb--;
1196 dev_kfree_skb(rxq->pool[i].skb);
1197 rxq->pool[i].skb = NULL;
1199 list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
1202 /* Set us so that we have processed and used all buffers, but have
1203 * not restocked the Rx queue with fresh buffers */
1204 rxq->read = rxq->write = 0;
1205 rxq->free_count = 0;
1206 rxq->write_actual = 0;
1207 spin_unlock_irqrestore(&rxq->lock, flags);
1210 void iwl3945_rx_replenish(void *data)
1212 struct iwl_priv *priv = data;
1213 unsigned long flags;
1215 iwl3945_rx_allocate(priv, GFP_KERNEL);
1217 spin_lock_irqsave(&priv->lock, flags);
1218 iwl3945_rx_queue_restock(priv);
1219 spin_unlock_irqrestore(&priv->lock, flags);
1222 static void iwl3945_rx_replenish_now(struct iwl_priv *priv)
1224 iwl3945_rx_allocate(priv, GFP_ATOMIC);
1226 iwl3945_rx_queue_restock(priv);
1230 /* Assumes that the skb field of the buffers in 'pool' is kept accurate.
1231 * If an SKB has been detached, the POOL needs to have its SKB set to NULL
1232 * This free routine walks the list of POOL entries and if SKB is set to
1233 * non NULL it is unmapped and freed
1235 static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
1238 for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
1239 if (rxq->pool[i].skb != NULL) {
1240 pci_unmap_single(priv->pci_dev,
1241 rxq->pool[i].real_dma_addr,
1242 priv->hw_params.rx_buf_size,
1243 PCI_DMA_FROMDEVICE);
1244 dev_kfree_skb(rxq->pool[i].skb);
1248 pci_free_consistent(priv->pci_dev, 4 * RX_QUEUE_SIZE, rxq->bd,
1250 pci_free_consistent(priv->pci_dev, sizeof(struct iwl_rb_status),
1251 rxq->rb_stts, rxq->rb_stts_dma);
1253 rxq->rb_stts = NULL;
1257 /* Convert linear signal-to-noise ratio into dB */
1258 static u8 ratio2dB[100] = {
1259 /* 0 1 2 3 4 5 6 7 8 9 */
1260 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
1261 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
1262 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
1263 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
1264 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
1265 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
1266 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
1267 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
1268 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
1269 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
1272 /* Calculates a relative dB value from a ratio of linear
1273 * (i.e. not dB) signal levels.
1274 * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
1275 int iwl3945_calc_db_from_ratio(int sig_ratio)
1277 /* 1000:1 or higher just report as 60 dB */
1278 if (sig_ratio >= 1000)
1281 /* 100:1 or higher, divide by 10 and use table,
1282 * add 20 dB to make up for divide by 10 */
1283 if (sig_ratio >= 100)
1284 return 20 + (int)ratio2dB[sig_ratio/10];
1286 /* We shouldn't see this */
1290 /* Use table for ratios 1:1 - 99:1 */
1291 return (int)ratio2dB[sig_ratio];
1294 #define PERFECT_RSSI (-20) /* dBm */
1295 #define WORST_RSSI (-95) /* dBm */
1296 #define RSSI_RANGE (PERFECT_RSSI - WORST_RSSI)
1298 /* Calculate an indication of rx signal quality (a percentage, not dBm!).
1299 * See http://www.ces.clemson.edu/linux/signal_quality.shtml for info
1300 * about formulas used below. */
1301 int iwl3945_calc_sig_qual(int rssi_dbm, int noise_dbm)
1304 int degradation = PERFECT_RSSI - rssi_dbm;
1306 /* If we get a noise measurement, use signal-to-noise ratio (SNR)
1307 * as indicator; formula is (signal dbm - noise dbm).
1308 * SNR at or above 40 is a great signal (100%).
1309 * Below that, scale to fit SNR of 0 - 40 dB within 0 - 100% indicator.
1310 * Weakest usable signal is usually 10 - 15 dB SNR. */
1312 if (rssi_dbm - noise_dbm >= 40)
1314 else if (rssi_dbm < noise_dbm)
1316 sig_qual = ((rssi_dbm - noise_dbm) * 5) / 2;
1318 /* Else use just the signal level.
1319 * This formula is a least squares fit of data points collected and
1320 * compared with a reference system that had a percentage (%) display
1321 * for signal quality. */
1323 sig_qual = (100 * (RSSI_RANGE * RSSI_RANGE) - degradation *
1324 (15 * RSSI_RANGE + 62 * degradation)) /
1325 (RSSI_RANGE * RSSI_RANGE);
1329 else if (sig_qual < 1)
1336 * iwl3945_rx_handle - Main entry function for receiving responses from uCode
1338 * Uses the priv->rx_handlers callback function array to invoke
1339 * the appropriate handlers, including command responses,
1340 * frame-received notifications, and other notifications.
1342 static void iwl3945_rx_handle(struct iwl_priv *priv)
1344 struct iwl_rx_mem_buffer *rxb;
1345 struct iwl_rx_packet *pkt;
1346 struct iwl_rx_queue *rxq = &priv->rxq;
1349 unsigned long flags;
1352 int total_empty = 0;
1354 /* uCode's read index (stored in shared DRAM) indicates the last Rx
1355 * buffer that the driver may process (last buffer filled by ucode). */
1356 r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
1359 /* calculate total frames need to be restock after handling RX */
1360 total_empty = r - priv->rxq.write_actual;
1361 if (total_empty < 0)
1362 total_empty += RX_QUEUE_SIZE;
1364 if (total_empty > (RX_QUEUE_SIZE / 2))
1366 /* Rx interrupt, but nothing sent from uCode */
1368 IWL_DEBUG(priv, IWL_DL_RX | IWL_DL_ISR, "r = %d, i = %d\n", r, i);
1371 rxb = rxq->queue[i];
1373 /* If an RXB doesn't have a Rx queue slot associated with it,
1374 * then a bug has been introduced in the queue refilling
1375 * routines -- catch it here */
1376 BUG_ON(rxb == NULL);
1378 rxq->queue[i] = NULL;
1380 pci_unmap_single(priv->pci_dev, rxb->real_dma_addr,
1381 priv->hw_params.rx_buf_size,
1382 PCI_DMA_FROMDEVICE);
1383 pkt = (struct iwl_rx_packet *)rxb->skb->data;
1385 /* Reclaim a command buffer only if this packet is a response
1386 * to a (driver-originated) command.
1387 * If the packet (e.g. Rx frame) originated from uCode,
1388 * there is no command buffer to reclaim.
1389 * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
1390 * but apparently a few don't get set; catch them here. */
1391 reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
1392 (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
1393 (pkt->hdr.cmd != REPLY_TX);
1395 /* Based on type of command response or notification,
1396 * handle those that need handling via function in
1397 * rx_handlers table. See iwl3945_setup_rx_handlers() */
1398 if (priv->rx_handlers[pkt->hdr.cmd]) {
1399 IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
1400 "r = %d, i = %d, %s, 0x%02x\n", r, i,
1401 get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
1402 priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
1403 priv->isr_stats.rx_handlers[pkt->hdr.cmd]++;
1405 /* No handling needed */
1406 IWL_DEBUG(priv, IWL_DL_HCMD | IWL_DL_RX | IWL_DL_ISR,
1407 "r %d i %d No handler needed for %s, 0x%02x\n",
1408 r, i, get_cmd_string(pkt->hdr.cmd),
1413 /* Invoke any callbacks, transfer the skb to caller, and
1414 * fire off the (possibly) blocking iwl_send_cmd()
1415 * as we reclaim the driver command queue */
1416 if (rxb && rxb->skb)
1417 iwl_tx_cmd_complete(priv, rxb);
1419 IWL_WARN(priv, "Claim null rxb?\n");
1422 /* For now we just don't re-use anything. We can tweak this
1423 * later to try and re-use notification packets and SKBs that
1424 * fail to Rx correctly */
1425 if (rxb->skb != NULL) {
1426 priv->alloc_rxb_skb--;
1427 dev_kfree_skb_any(rxb->skb);
1431 spin_lock_irqsave(&rxq->lock, flags);
1432 list_add_tail(&rxb->list, &priv->rxq.rx_used);
1433 spin_unlock_irqrestore(&rxq->lock, flags);
1434 i = (i + 1) & RX_QUEUE_MASK;
1435 /* If there are a lot of unused frames,
1436 * restock the Rx queue so ucode won't assert. */
1441 iwl3945_rx_replenish_now(priv);
1447 /* Backtrack one entry */
1450 iwl3945_rx_replenish_now(priv);
1452 iwl3945_rx_queue_restock(priv);
1455 /* call this function to flush any scheduled tasklet */
1456 static inline void iwl_synchronize_irq(struct iwl_priv *priv)
1458 /* wait to make sure we flush pending tasklet*/
1459 synchronize_irq(priv->pci_dev->irq);
1460 tasklet_kill(&priv->irq_tasklet);
1463 static const char *desc_lookup(int i)
1471 return "BAD_CHECKSUM";
1473 return "NMI_INTERRUPT";
1477 return "FATAL_ERROR";
1483 #define ERROR_START_OFFSET (1 * sizeof(u32))
1484 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1486 static void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
1489 u32 desc, time, count, base, data1;
1490 u32 blink1, blink2, ilink1, ilink2;
1492 base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
1494 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
1495 IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
1500 count = iwl_read_targ_mem(priv, base);
1502 if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
1503 IWL_ERR(priv, "Start IWL Error Log Dump:\n");
1504 IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
1505 priv->status, count);
1508 IWL_ERR(priv, "Desc Time asrtPC blink2 "
1509 "ilink1 nmiPC Line\n");
1510 for (i = ERROR_START_OFFSET;
1511 i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
1512 i += ERROR_ELEM_SIZE) {
1513 desc = iwl_read_targ_mem(priv, base + i);
1515 iwl_read_targ_mem(priv, base + i + 1 * sizeof(u32));
1517 iwl_read_targ_mem(priv, base + i + 2 * sizeof(u32));
1519 iwl_read_targ_mem(priv, base + i + 3 * sizeof(u32));
1521 iwl_read_targ_mem(priv, base + i + 4 * sizeof(u32));
1523 iwl_read_targ_mem(priv, base + i + 5 * sizeof(u32));
1525 iwl_read_targ_mem(priv, base + i + 6 * sizeof(u32));
1528 "%-13s (#%d) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
1529 desc_lookup(desc), desc, time, blink1, blink2,
1530 ilink1, ilink2, data1);
1535 #define EVENT_START_OFFSET (6 * sizeof(u32))
1538 * iwl3945_print_event_log - Dump error event log to syslog
1541 static void iwl3945_print_event_log(struct iwl_priv *priv, u32 start_idx,
1542 u32 num_events, u32 mode)
1545 u32 base; /* SRAM byte address of event log header */
1546 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
1547 u32 ptr; /* SRAM byte address of log data */
1548 u32 ev, time, data; /* event log data */
1550 if (num_events == 0)
1553 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
1556 event_size = 2 * sizeof(u32);
1558 event_size = 3 * sizeof(u32);
1560 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
1562 /* "time" is actually "data" for mode 0 (no timestamp).
1563 * place event id # at far right for easier visual parsing. */
1564 for (i = 0; i < num_events; i++) {
1565 ev = iwl_read_targ_mem(priv, ptr);
1567 time = iwl_read_targ_mem(priv, ptr);
1571 IWL_ERR(priv, "0x%08x\t%04u\n", time, ev);
1573 data = iwl_read_targ_mem(priv, ptr);
1575 IWL_ERR(priv, "%010u\t0x%08x\t%04u\n", time, data, ev);
1580 static void iwl3945_dump_nic_event_log(struct iwl_priv *priv)
1582 u32 base; /* SRAM byte address of event log header */
1583 u32 capacity; /* event log capacity in # entries */
1584 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
1585 u32 num_wraps; /* # times uCode wrapped to top of log */
1586 u32 next_entry; /* index of next entry to be written by uCode */
1587 u32 size; /* # entries that we'll print */
1589 base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
1590 if (!iwl3945_hw_valid_rtc_data_addr(base)) {
1591 IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
1595 /* event log header */
1596 capacity = iwl_read_targ_mem(priv, base);
1597 mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32)));
1598 num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32)));
1599 next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32)));
1601 size = num_wraps ? capacity : next_entry;
1603 /* bail out if nothing in log */
1605 IWL_ERR(priv, "Start IWL Event Log Dump: nothing in log\n");
1609 IWL_ERR(priv, "Start IWL Event Log Dump: display count %d, wraps %d\n",
1612 /* if uCode has wrapped back to top of log, start at the oldest entry,
1613 * i.e the next one that uCode would fill. */
1615 iwl3945_print_event_log(priv, next_entry,
1616 capacity - next_entry, mode);
1618 /* (then/else) start at top of log */
1619 iwl3945_print_event_log(priv, 0, next_entry, mode);
1623 static void iwl3945_irq_tasklet(struct iwl_priv *priv)
1625 u32 inta, handled = 0;
1627 unsigned long flags;
1628 #ifdef CONFIG_IWLWIFI_DEBUG
1632 spin_lock_irqsave(&priv->lock, flags);
1634 /* Ack/clear/reset pending uCode interrupts.
1635 * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
1636 * and will clear only when CSR_FH_INT_STATUS gets cleared. */
1637 inta = iwl_read32(priv, CSR_INT);
1638 iwl_write32(priv, CSR_INT, inta);
1640 /* Ack/clear/reset pending flow-handler (DMA) interrupts.
1641 * Any new interrupts that happen after this, either while we're
1642 * in this tasklet, or later, will show up in next ISR/tasklet. */
1643 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1644 iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
1646 #ifdef CONFIG_IWLWIFI_DEBUG
1647 if (priv->debug_level & IWL_DL_ISR) {
1648 /* just for debug */
1649 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1650 IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
1651 inta, inta_mask, inta_fh);
1655 /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
1656 * atomic, make sure that inta covers all the interrupts that
1657 * we've discovered, even if FH interrupt came in just after
1658 * reading CSR_INT. */
1659 if (inta_fh & CSR39_FH_INT_RX_MASK)
1660 inta |= CSR_INT_BIT_FH_RX;
1661 if (inta_fh & CSR39_FH_INT_TX_MASK)
1662 inta |= CSR_INT_BIT_FH_TX;
1664 /* Now service all interrupt bits discovered above. */
1665 if (inta & CSR_INT_BIT_HW_ERR) {
1666 IWL_ERR(priv, "Microcode HW error detected. Restarting.\n");
1668 /* Tell the device to stop sending interrupts */
1669 iwl_disable_interrupts(priv);
1671 priv->isr_stats.hw++;
1672 iwl_irq_handle_error(priv);
1674 handled |= CSR_INT_BIT_HW_ERR;
1676 spin_unlock_irqrestore(&priv->lock, flags);
1681 #ifdef CONFIG_IWLWIFI_DEBUG
1682 if (priv->debug_level & (IWL_DL_ISR)) {
1683 /* NIC fires this, but we don't use it, redundant with WAKEUP */
1684 if (inta & CSR_INT_BIT_SCD) {
1685 IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
1686 "the frame/frames.\n");
1687 priv->isr_stats.sch++;
1690 /* Alive notification via Rx interrupt will do the real work */
1691 if (inta & CSR_INT_BIT_ALIVE) {
1692 IWL_DEBUG_ISR(priv, "Alive interrupt\n");
1693 priv->isr_stats.alive++;
1697 /* Safely ignore these bits for debug checks below */
1698 inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
1700 /* Error detected by uCode */
1701 if (inta & CSR_INT_BIT_SW_ERR) {
1702 IWL_ERR(priv, "Microcode SW error detected. "
1703 "Restarting 0x%X.\n", inta);
1704 priv->isr_stats.sw++;
1705 priv->isr_stats.sw_err = inta;
1706 iwl_irq_handle_error(priv);
1707 handled |= CSR_INT_BIT_SW_ERR;
1710 /* uCode wakes up after power-down sleep */
1711 if (inta & CSR_INT_BIT_WAKEUP) {
1712 IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
1713 iwl_rx_queue_update_write_ptr(priv, &priv->rxq);
1714 iwl_txq_update_write_ptr(priv, &priv->txq[0]);
1715 iwl_txq_update_write_ptr(priv, &priv->txq[1]);
1716 iwl_txq_update_write_ptr(priv, &priv->txq[2]);
1717 iwl_txq_update_write_ptr(priv, &priv->txq[3]);
1718 iwl_txq_update_write_ptr(priv, &priv->txq[4]);
1719 iwl_txq_update_write_ptr(priv, &priv->txq[5]);
1721 priv->isr_stats.wakeup++;
1722 handled |= CSR_INT_BIT_WAKEUP;
1725 /* All uCode command responses, including Tx command responses,
1726 * Rx "responses" (frame-received notification), and other
1727 * notifications from uCode come through here*/
1728 if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
1729 iwl3945_rx_handle(priv);
1730 priv->isr_stats.rx++;
1731 handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
1734 if (inta & CSR_INT_BIT_FH_TX) {
1735 IWL_DEBUG_ISR(priv, "Tx interrupt\n");
1736 priv->isr_stats.tx++;
1738 iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
1739 iwl_write_direct32(priv, FH39_TCSR_CREDIT
1740 (FH39_SRVC_CHNL), 0x0);
1741 handled |= CSR_INT_BIT_FH_TX;
1744 if (inta & ~handled) {
1745 IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
1746 priv->isr_stats.unhandled++;
1749 if (inta & ~priv->inta_mask) {
1750 IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
1751 inta & ~priv->inta_mask);
1752 IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
1755 /* Re-enable all interrupts */
1756 /* only Re-enable if disabled by irq */
1757 if (test_bit(STATUS_INT_ENABLED, &priv->status))
1758 iwl_enable_interrupts(priv);
1760 #ifdef CONFIG_IWLWIFI_DEBUG
1761 if (priv->debug_level & (IWL_DL_ISR)) {
1762 inta = iwl_read32(priv, CSR_INT);
1763 inta_mask = iwl_read32(priv, CSR_INT_MASK);
1764 inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
1765 IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
1766 "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
1769 spin_unlock_irqrestore(&priv->lock, flags);
1772 static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
1773 enum ieee80211_band band,
1774 u8 is_active, u8 n_probes,
1775 struct iwl3945_scan_channel *scan_ch)
1777 struct ieee80211_channel *chan;
1778 const struct ieee80211_supported_band *sband;
1779 const struct iwl_channel_info *ch_info;
1780 u16 passive_dwell = 0;
1781 u16 active_dwell = 0;
1784 sband = iwl_get_hw_mode(priv, band);
1788 active_dwell = iwl_get_active_dwell_time(priv, band, n_probes);
1789 passive_dwell = iwl_get_passive_dwell_time(priv, band);
1791 if (passive_dwell <= active_dwell)
1792 passive_dwell = active_dwell + 1;
1794 for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) {
1795 chan = priv->scan_request->channels[i];
1797 if (chan->band != band)
1800 scan_ch->channel = chan->hw_value;
1802 ch_info = iwl_get_channel_info(priv, band, scan_ch->channel);
1803 if (!is_channel_valid(ch_info)) {
1804 IWL_DEBUG_SCAN(priv, "Channel %d is INVALID for this band.\n",
1809 scan_ch->active_dwell = cpu_to_le16(active_dwell);
1810 scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
1811 /* If passive , set up for auto-switch
1812 * and use long active_dwell time.
1814 if (!is_active || is_channel_passive(ch_info) ||
1815 (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
1816 scan_ch->type = 0; /* passive */
1817 if (IWL_UCODE_API(priv->ucode_ver) == 1)
1818 scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1);
1820 scan_ch->type = 1; /* active */
1823 /* Set direct probe bits. These may be used both for active
1824 * scan channels (probes gets sent right away),
1825 * or for passive channels (probes get se sent only after
1826 * hearing clear Rx packet).*/
1827 if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
1829 scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes);
1831 /* uCode v1 does not allow setting direct probe bits on
1832 * passive channel. */
1833 if ((scan_ch->type & 1) && n_probes)
1834 scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes);
1837 /* Set txpower levels to defaults */
1838 scan_ch->tpc.dsp_atten = 110;
1839 /* scan_pwr_info->tpc.dsp_atten; */
1841 /*scan_pwr_info->tpc.tx_gain; */
1842 if (band == IEEE80211_BAND_5GHZ)
1843 scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
1845 scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
1846 /* NOTE: if we were doing 6Mb OFDM for scans we'd use
1848 * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
1852 IWL_DEBUG_SCAN(priv, "Scanning %d [%s %d]\n",
1854 (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
1855 (scan_ch->type & 1) ?
1856 active_dwell : passive_dwell);
1862 IWL_DEBUG_SCAN(priv, "total channels to scan %d \n", added);
1866 static void iwl3945_init_hw_rates(struct iwl_priv *priv,
1867 struct ieee80211_rate *rates)
1871 for (i = 0; i < IWL_RATE_COUNT; i++) {
1872 rates[i].bitrate = iwl3945_rates[i].ieee * 5;
1873 rates[i].hw_value = i; /* Rate scaling will work on indexes */
1874 rates[i].hw_value_short = i;
1876 if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
1878 * If CCK != 1M then set short preamble rate flag.
1880 rates[i].flags |= (iwl3945_rates[i].plcp == 10) ?
1881 0 : IEEE80211_RATE_SHORT_PREAMBLE;
1886 /******************************************************************************
1888 * uCode download functions
1890 ******************************************************************************/
1892 static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv)
1894 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_code);
1895 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data);
1896 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
1897 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init);
1898 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
1899 iwl_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
1903 * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
1904 * looking at all data.
1906 static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len)
1913 IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
1915 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
1916 IWL39_RTC_INST_LOWER_BOUND);
1919 for (; len > 0; len -= sizeof(u32), image++) {
1920 /* read data comes through single port, auto-incr addr */
1921 /* NOTE: Use the debugless read so we don't flood kernel log
1922 * if IWL_DL_IO is set */
1923 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
1924 if (val != le32_to_cpu(*image)) {
1925 IWL_ERR(priv, "uCode INST section is invalid at "
1926 "offset 0x%x, is 0x%x, s/b 0x%x\n",
1927 save_len - len, val, le32_to_cpu(*image));
1937 IWL_DEBUG_INFO(priv,
1938 "ucode image in INSTRUCTION memory is good\n");
1945 * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
1946 * using sample data 100 bytes apart. If these sample points are good,
1947 * it's a pretty good bet that everything between them is good, too.
1949 static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
1956 IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
1958 for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
1959 /* read data comes through single port, auto-incr addr */
1960 /* NOTE: Use the debugless read so we don't flood kernel log
1961 * if IWL_DL_IO is set */
1962 iwl_write_direct32(priv, HBUS_TARG_MEM_RADDR,
1963 i + IWL39_RTC_INST_LOWER_BOUND);
1964 val = _iwl_read_direct32(priv, HBUS_TARG_MEM_RDAT);
1965 if (val != le32_to_cpu(*image)) {
1966 #if 0 /* Enable this if you want to see details */
1967 IWL_ERR(priv, "uCode INST section is invalid at "
1968 "offset 0x%x, is 0x%x, s/b 0x%x\n",
1983 * iwl3945_verify_ucode - determine which instruction image is in SRAM,
1984 * and verify its contents
1986 static int iwl3945_verify_ucode(struct iwl_priv *priv)
1993 image = (__le32 *)priv->ucode_boot.v_addr;
1994 len = priv->ucode_boot.len;
1995 rc = iwl3945_verify_inst_sparse(priv, image, len);
1997 IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n");
2001 /* Try initialize */
2002 image = (__le32 *)priv->ucode_init.v_addr;
2003 len = priv->ucode_init.len;
2004 rc = iwl3945_verify_inst_sparse(priv, image, len);
2006 IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n");
2010 /* Try runtime/protocol */
2011 image = (__le32 *)priv->ucode_code.v_addr;
2012 len = priv->ucode_code.len;
2013 rc = iwl3945_verify_inst_sparse(priv, image, len);
2015 IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n");
2019 IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
2021 /* Since nothing seems to match, show first several data entries in
2022 * instruction SRAM, so maybe visual inspection will give a clue.
2023 * Selection of bootstrap image (vs. other images) is arbitrary. */
2024 image = (__le32 *)priv->ucode_boot.v_addr;
2025 len = priv->ucode_boot.len;
2026 rc = iwl3945_verify_inst_full(priv, image, len);
2031 static void iwl3945_nic_start(struct iwl_priv *priv)
2033 /* Remove all resets to allow NIC to operate */
2034 iwl_write32(priv, CSR_RESET, 0);
2038 * iwl3945_read_ucode - Read uCode images from disk file.
2040 * Copy into buffers for card to fetch via bus-mastering
2042 static int iwl3945_read_ucode(struct iwl_priv *priv)
2044 const struct iwl_ucode_header *ucode;
2045 int ret = -EINVAL, index;
2046 const struct firmware *ucode_raw;
2047 /* firmware file name contains uCode/driver compatibility version */
2048 const char *name_pre = priv->cfg->fw_name_pre;
2049 const unsigned int api_max = priv->cfg->ucode_api_max;
2050 const unsigned int api_min = priv->cfg->ucode_api_min;
2054 u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
2056 /* Ask kernel firmware_class module to get the boot firmware off disk.
2057 * request_firmware() is synchronous, file is in memory on return. */
2058 for (index = api_max; index >= api_min; index--) {
2059 sprintf(buf, "%s%u%s", name_pre, index, ".ucode");
2060 ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev);
2062 IWL_ERR(priv, "%s firmware file req failed: %d\n",
2069 if (index < api_max)
2070 IWL_ERR(priv, "Loaded firmware %s, "
2071 "which is deprecated. "
2072 " Please use API v%u instead.\n",
2074 IWL_DEBUG_INFO(priv, "Got firmware '%s' file "
2075 "(%zd bytes) from disk\n",
2076 buf, ucode_raw->size);
2084 /* Make sure that we got at least our header! */
2085 if (ucode_raw->size < priv->cfg->ops->ucode->get_header_size(1)) {
2086 IWL_ERR(priv, "File size way too small!\n");
2091 /* Data from ucode file: header followed by uCode images */
2092 ucode = (struct iwl_ucode_header *)ucode_raw->data;
2094 priv->ucode_ver = le32_to_cpu(ucode->ver);
2095 api_ver = IWL_UCODE_API(priv->ucode_ver);
2096 inst_size = priv->cfg->ops->ucode->get_inst_size(ucode, api_ver);
2097 data_size = priv->cfg->ops->ucode->get_data_size(ucode, api_ver);
2098 init_size = priv->cfg->ops->ucode->get_init_size(ucode, api_ver);
2100 priv->cfg->ops->ucode->get_init_data_size(ucode, api_ver);
2101 boot_size = priv->cfg->ops->ucode->get_boot_size(ucode, api_ver);
2102 src = priv->cfg->ops->ucode->get_data(ucode, api_ver);
2104 /* api_ver should match the api version forming part of the
2105 * firmware filename ... but we don't check for that and only rely
2106 * on the API version read from firmware header from here on forward */
2108 if (api_ver < api_min || api_ver > api_max) {
2109 IWL_ERR(priv, "Driver unable to support your firmware API. "
2110 "Driver supports v%u, firmware is v%u.\n",
2112 priv->ucode_ver = 0;
2116 if (api_ver != api_max)
2117 IWL_ERR(priv, "Firmware has old API version. Expected %u, "
2118 "got %u. New firmware can be obtained "
2119 "from http://www.intellinuxwireless.org.\n",
2122 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
2123 IWL_UCODE_MAJOR(priv->ucode_ver),
2124 IWL_UCODE_MINOR(priv->ucode_ver),
2125 IWL_UCODE_API(priv->ucode_ver),
2126 IWL_UCODE_SERIAL(priv->ucode_ver));
2128 IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
2130 IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n",
2132 IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n",
2134 IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n",
2136 IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n",
2138 IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n",
2142 /* Verify size of file vs. image size info in file's header */
2143 if (ucode_raw->size != priv->cfg->ops->ucode->get_header_size(api_ver) +
2144 inst_size + data_size + init_size +
2145 init_data_size + boot_size) {
2147 IWL_DEBUG_INFO(priv,
2148 "uCode file size %zd does not match expected size\n",
2154 /* Verify that uCode images will fit in card's SRAM */
2155 if (inst_size > IWL39_MAX_INST_SIZE) {
2156 IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n",
2162 if (data_size > IWL39_MAX_DATA_SIZE) {
2163 IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n",
2168 if (init_size > IWL39_MAX_INST_SIZE) {
2169 IWL_DEBUG_INFO(priv,
2170 "uCode init instr len %d too large to fit in\n",
2175 if (init_data_size > IWL39_MAX_DATA_SIZE) {
2176 IWL_DEBUG_INFO(priv,
2177 "uCode init data len %d too large to fit in\n",
2182 if (boot_size > IWL39_MAX_BSM_SIZE) {
2183 IWL_DEBUG_INFO(priv,
2184 "uCode boot instr len %d too large to fit in\n",
2190 /* Allocate ucode buffers for card's bus-master loading ... */
2192 /* Runtime instructions and 2 copies of data:
2193 * 1) unmodified from disk
2194 * 2) backup cache for save/restore during power-downs */
2195 priv->ucode_code.len = inst_size;
2196 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
2198 priv->ucode_data.len = data_size;
2199 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
2201 priv->ucode_data_backup.len = data_size;
2202 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
2204 if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
2205 !priv->ucode_data_backup.v_addr)
2208 /* Initialization instructions and data */
2209 if (init_size && init_data_size) {
2210 priv->ucode_init.len = init_size;
2211 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
2213 priv->ucode_init_data.len = init_data_size;
2214 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
2216 if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
2220 /* Bootstrap (instructions only, no data) */
2222 priv->ucode_boot.len = boot_size;
2223 iwl_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
2225 if (!priv->ucode_boot.v_addr)
2229 /* Copy images into buffers for card's bus-master reads ... */
2231 /* Runtime instructions (first block of data in file) */
2233 IWL_DEBUG_INFO(priv,
2234 "Copying (but not loading) uCode instr len %zd\n", len);
2235 memcpy(priv->ucode_code.v_addr, src, len);
2238 IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
2239 priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
2241 /* Runtime data (2nd block)
2242 * NOTE: Copy into backup buffer will be done in iwl3945_up() */
2244 IWL_DEBUG_INFO(priv,
2245 "Copying (but not loading) uCode data len %zd\n", len);
2246 memcpy(priv->ucode_data.v_addr, src, len);
2247 memcpy(priv->ucode_data_backup.v_addr, src, len);
2250 /* Initialization instructions (3rd block) */
2253 IWL_DEBUG_INFO(priv,
2254 "Copying (but not loading) init instr len %zd\n", len);
2255 memcpy(priv->ucode_init.v_addr, src, len);
2259 /* Initialization data (4th block) */
2260 if (init_data_size) {
2261 len = init_data_size;
2262 IWL_DEBUG_INFO(priv,
2263 "Copying (but not loading) init data len %zd\n", len);
2264 memcpy(priv->ucode_init_data.v_addr, src, len);
2268 /* Bootstrap instructions (5th block) */
2270 IWL_DEBUG_INFO(priv,
2271 "Copying (but not loading) boot instr len %zd\n", len);
2272 memcpy(priv->ucode_boot.v_addr, src, len);
2274 /* We have our copies now, allow OS release its copies */
2275 release_firmware(ucode_raw);
2279 IWL_ERR(priv, "failed to allocate pci memory\n");
2281 iwl3945_dealloc_ucode_pci(priv);
2284 release_firmware(ucode_raw);
2292 * iwl3945_set_ucode_ptrs - Set uCode address location
2294 * Tell initialization uCode where to find runtime uCode.
2296 * BSM registers initially contain pointers to initialization uCode.
2297 * We need to replace them to load runtime uCode inst and data,
2298 * and to save runtime data when powering down.
2300 static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv)
2305 /* bits 31:0 for 3945 */
2306 pinst = priv->ucode_code.p_addr;
2307 pdata = priv->ucode_data_backup.p_addr;
2309 /* Tell bootstrap uCode where to find image to load */
2310 iwl_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
2311 iwl_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
2312 iwl_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
2313 priv->ucode_data.len);
2315 /* Inst byte count must be last to set up, bit 31 signals uCode
2316 * that all new ptr/size info is in place */
2317 iwl_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
2318 priv->ucode_code.len | BSM_DRAM_INST_LOAD);
2320 IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n");
2326 * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
2328 * Called after REPLY_ALIVE notification received from "initialize" uCode.
2330 * Tell "initialize" uCode to go ahead and load the runtime uCode.
2332 static void iwl3945_init_alive_start(struct iwl_priv *priv)
2334 /* Check alive response for "valid" sign from uCode */
2335 if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
2336 /* We had an error bringing up the hardware, so take it
2337 * all the way back down so we can try again */
2338 IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n");
2342 /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
2343 * This is a paranoid check, because we would not have gotten the
2344 * "initialize" alive if code weren't properly loaded. */
2345 if (iwl3945_verify_ucode(priv)) {
2346 /* Runtime instruction load was bad;
2347 * take it all the way back down so we can try again */
2348 IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n");
2352 /* Send pointers to protocol/runtime uCode image ... init code will
2353 * load and launch runtime uCode, which will send us another "Alive"
2355 IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
2356 if (iwl3945_set_ucode_ptrs(priv)) {
2357 /* Runtime instruction load won't happen;
2358 * take it all the way back down so we can try again */
2359 IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n");
2365 queue_work(priv->workqueue, &priv->restart);
2369 * iwl3945_alive_start - called after REPLY_ALIVE notification received
2370 * from protocol/runtime uCode (initialization uCode's
2371 * Alive gets handled by iwl3945_init_alive_start()).
2373 static void iwl3945_alive_start(struct iwl_priv *priv)
2375 int thermal_spin = 0;
2378 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
2380 if (priv->card_alive.is_valid != UCODE_VALID_OK) {
2381 /* We had an error bringing up the hardware, so take it
2382 * all the way back down so we can try again */
2383 IWL_DEBUG_INFO(priv, "Alive failed.\n");
2387 /* Initialize uCode has loaded Runtime uCode ... verify inst image.
2388 * This is a paranoid check, because we would not have gotten the
2389 * "runtime" alive if code weren't properly loaded. */
2390 if (iwl3945_verify_ucode(priv)) {
2391 /* Runtime instruction load was bad;
2392 * take it all the way back down so we can try again */
2393 IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n");
2397 iwl_clear_stations_table(priv);
2399 rfkill = iwl_read_prph(priv, APMG_RFKILL_REG);
2400 IWL_DEBUG_INFO(priv, "RFKILL status: 0x%x\n", rfkill);
2403 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2404 /* if RFKILL is not on, then wait for thermal
2405 * sensor in adapter to kick in */
2406 while (iwl3945_hw_get_temperature(priv) == 0) {
2412 IWL_DEBUG_INFO(priv, "Thermal calibration took %dus\n",
2415 set_bit(STATUS_RF_KILL_HW, &priv->status);
2417 /* After the ALIVE response, we can send commands to 3945 uCode */
2418 set_bit(STATUS_ALIVE, &priv->status);
2420 if (iwl_is_rfkill(priv))
2423 ieee80211_wake_queues(priv->hw);
2425 priv->active_rate = priv->rates_mask;
2426 priv->active_rate_basic = priv->rates_mask & IWL_BASIC_RATES_MASK;
2428 iwl_power_update_mode(priv, false);
2430 if (iwl_is_associated(priv)) {
2431 struct iwl3945_rxon_cmd *active_rxon =
2432 (struct iwl3945_rxon_cmd *)(&priv->active_rxon);
2434 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
2435 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2437 /* Initialize our rx_config data */
2438 iwl_connection_init_rx_config(priv, priv->iw_mode);
2441 /* Configure Bluetooth device coexistence support */
2442 iwl_send_bt_config(priv);
2444 /* Configure the adapter for unassociated operation */
2445 iwlcore_commit_rxon(priv);
2447 iwl3945_reg_txpower_periodic(priv);
2449 iwl3945_led_register(priv);
2451 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
2452 set_bit(STATUS_READY, &priv->status);
2453 wake_up_interruptible(&priv->wait_command_queue);
2455 /* reassociate for ADHOC mode */
2456 if (priv->vif && (priv->iw_mode == NL80211_IFTYPE_ADHOC)) {
2457 struct sk_buff *beacon = ieee80211_beacon_get(priv->hw,
2460 iwl_mac_beacon_update(priv->hw, beacon);
2463 if (test_and_clear_bit(STATUS_MODE_PENDING, &priv->status))
2464 iwl_set_mode(priv, priv->iw_mode);
2469 queue_work(priv->workqueue, &priv->restart);
2472 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv);
2474 static void __iwl3945_down(struct iwl_priv *priv)
2476 unsigned long flags;
2477 int exit_pending = test_bit(STATUS_EXIT_PENDING, &priv->status);
2478 struct ieee80211_conf *conf = NULL;
2480 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
2482 conf = ieee80211_get_hw_conf(priv->hw);
2485 set_bit(STATUS_EXIT_PENDING, &priv->status);
2487 iwl3945_led_unregister(priv);
2488 iwl_clear_stations_table(priv);
2490 /* Unblock any waiting calls */
2491 wake_up_interruptible_all(&priv->wait_command_queue);
2493 /* Wipe out the EXIT_PENDING status bit if we are not actually
2494 * exiting the module */
2496 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2498 /* stop and reset the on-board processor */
2499 iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
2501 /* tell the device to stop sending interrupts */
2502 spin_lock_irqsave(&priv->lock, flags);
2503 iwl_disable_interrupts(priv);
2504 spin_unlock_irqrestore(&priv->lock, flags);
2505 iwl_synchronize_irq(priv);
2507 if (priv->mac80211_registered)
2508 ieee80211_stop_queues(priv->hw);
2510 /* If we have not previously called iwl3945_init() then
2511 * clear all bits but the RF Kill bits and return */
2512 if (!iwl_is_init(priv)) {
2513 priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2515 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2516 STATUS_GEO_CONFIGURED |
2517 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
2518 STATUS_EXIT_PENDING;
2522 /* ...otherwise clear out all the status bits but the RF Kill
2523 * bit and continue taking the NIC down. */
2524 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
2526 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
2527 STATUS_GEO_CONFIGURED |
2528 test_bit(STATUS_FW_ERROR, &priv->status) <<
2530 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
2531 STATUS_EXIT_PENDING;
2533 priv->cfg->ops->lib->apm_ops.reset(priv);
2534 spin_lock_irqsave(&priv->lock, flags);
2535 iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
2536 spin_unlock_irqrestore(&priv->lock, flags);
2538 iwl3945_hw_txq_ctx_stop(priv);
2539 iwl3945_hw_rxq_stop(priv);
2541 iwl_write_prph(priv, APMG_CLK_DIS_REG,
2542 APMG_CLK_VAL_DMA_CLK_RQT);
2547 priv->cfg->ops->lib->apm_ops.stop(priv);
2549 priv->cfg->ops->lib->apm_ops.reset(priv);
2552 memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
2554 if (priv->ibss_beacon)
2555 dev_kfree_skb(priv->ibss_beacon);
2556 priv->ibss_beacon = NULL;
2558 /* clear out any free frames */
2559 iwl3945_clear_free_frames(priv);
2562 static void iwl3945_down(struct iwl_priv *priv)
2564 mutex_lock(&priv->mutex);
2565 __iwl3945_down(priv);
2566 mutex_unlock(&priv->mutex);
2568 iwl3945_cancel_deferred_work(priv);
2571 #define MAX_HW_RESTARTS 5
2573 static int __iwl3945_up(struct iwl_priv *priv)
2577 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
2578 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
2582 if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
2583 IWL_ERR(priv, "ucode not available for device bring up\n");
2587 /* If platform's RF_KILL switch is NOT set to KILL */
2588 if (iwl_read32(priv, CSR_GP_CNTRL) &
2589 CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
2590 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2592 set_bit(STATUS_RF_KILL_HW, &priv->status);
2593 IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
2597 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2599 rc = iwl3945_hw_nic_init(priv);
2601 IWL_ERR(priv, "Unable to int nic\n");
2605 /* make sure rfkill handshake bits are cleared */
2606 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2607 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
2608 CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
2610 /* clear (again), then enable host interrupts */
2611 iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
2612 iwl_enable_interrupts(priv);
2614 /* really make sure rfkill handshake bits are cleared */
2615 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2616 iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
2618 /* Copy original ucode data image from disk into backup cache.
2619 * This will be used to initialize the on-board processor's
2620 * data SRAM for a clean start when the runtime program first loads. */
2621 memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
2622 priv->ucode_data.len);
2624 /* We return success when we resume from suspend and rf_kill is on. */
2625 if (test_bit(STATUS_RF_KILL_HW, &priv->status))
2628 for (i = 0; i < MAX_HW_RESTARTS; i++) {
2630 iwl_clear_stations_table(priv);
2632 /* load bootstrap state machine,
2633 * load bootstrap program into processor's memory,
2634 * prepare to load the "initialize" uCode */
2635 priv->cfg->ops->lib->load_ucode(priv);
2639 "Unable to set up bootstrap uCode: %d\n", rc);
2643 /* start card; "initialize" will load runtime ucode */
2644 iwl3945_nic_start(priv);
2646 IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
2651 set_bit(STATUS_EXIT_PENDING, &priv->status);
2652 __iwl3945_down(priv);
2653 clear_bit(STATUS_EXIT_PENDING, &priv->status);
2655 /* tried to restart and config the device for as long as our
2656 * patience could withstand */
2657 IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
2662 /*****************************************************************************
2664 * Workqueue callbacks
2666 *****************************************************************************/
2668 static void iwl3945_bg_init_alive_start(struct work_struct *data)
2670 struct iwl_priv *priv =
2671 container_of(data, struct iwl_priv, init_alive_start.work);
2673 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2676 mutex_lock(&priv->mutex);
2677 iwl3945_init_alive_start(priv);
2678 mutex_unlock(&priv->mutex);
2681 static void iwl3945_bg_alive_start(struct work_struct *data)
2683 struct iwl_priv *priv =
2684 container_of(data, struct iwl_priv, alive_start.work);
2686 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2689 mutex_lock(&priv->mutex);
2690 iwl3945_alive_start(priv);
2691 mutex_unlock(&priv->mutex);
2694 static void iwl3945_rfkill_poll(struct work_struct *data)
2696 struct iwl_priv *priv =
2697 container_of(data, struct iwl_priv, rfkill_poll.work);
2699 if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
2700 clear_bit(STATUS_RF_KILL_HW, &priv->status);
2702 set_bit(STATUS_RF_KILL_HW, &priv->status);
2704 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
2705 test_bit(STATUS_RF_KILL_HW, &priv->status));
2707 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
2708 round_jiffies_relative(2 * HZ));
2712 #define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)
2713 static void iwl3945_bg_request_scan(struct work_struct *data)
2715 struct iwl_priv *priv =
2716 container_of(data, struct iwl_priv, request_scan);
2717 struct iwl_host_cmd cmd = {
2718 .id = REPLY_SCAN_CMD,
2719 .len = sizeof(struct iwl3945_scan_cmd),
2720 .meta.flags = CMD_SIZE_HUGE,
2723 struct iwl3945_scan_cmd *scan;
2724 struct ieee80211_conf *conf = NULL;
2726 enum ieee80211_band band;
2727 bool is_active = false;
2729 conf = ieee80211_get_hw_conf(priv->hw);
2731 mutex_lock(&priv->mutex);
2733 cancel_delayed_work(&priv->scan_check);
2735 if (!iwl_is_ready(priv)) {
2736 IWL_WARN(priv, "request scan called when driver not ready.\n");
2740 /* Make sure the scan wasn't canceled before this queued work
2741 * was given the chance to run... */
2742 if (!test_bit(STATUS_SCANNING, &priv->status))
2745 /* This should never be called or scheduled if there is currently
2746 * a scan active in the hardware. */
2747 if (test_bit(STATUS_SCAN_HW, &priv->status)) {
2748 IWL_DEBUG_INFO(priv, "Multiple concurrent scan requests "
2749 "Ignoring second request.\n");
2754 if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
2755 IWL_DEBUG_SCAN(priv, "Aborting scan due to device shutdown\n");
2759 if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
2761 "Scan request while abort pending. Queuing.\n");
2765 if (iwl_is_rfkill(priv)) {
2766 IWL_DEBUG_HC(priv, "Aborting scan due to RF Kill activation\n");
2770 if (!test_bit(STATUS_READY, &priv->status)) {
2772 "Scan request while uninitialized. Queuing.\n");
2776 if (!priv->scan_bands) {
2777 IWL_DEBUG_HC(priv, "Aborting scan due to no requested bands\n");
2782 priv->scan = kmalloc(sizeof(struct iwl3945_scan_cmd) +
2783 IWL_MAX_SCAN_SIZE, GFP_KERNEL);
2790 memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE);
2792 scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
2793 scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
2795 if (iwl_is_associated(priv)) {
2798 u32 suspend_time = 100;
2799 u32 scan_suspend_time = 100;
2800 unsigned long flags;
2802 IWL_DEBUG_INFO(priv, "Scanning while associated...\n");
2804 spin_lock_irqsave(&priv->lock, flags);
2805 interval = priv->beacon_int;
2806 spin_unlock_irqrestore(&priv->lock, flags);
2808 scan->suspend_time = 0;
2809 scan->max_out_time = cpu_to_le32(200 * 1024);
2811 interval = suspend_time;
2813 * suspend time format:
2814 * 0-19: beacon interval in usec (time before exec.)
2816 * 24-31: number of beacons (suspend between channels)
2819 extra = (suspend_time / interval) << 24;
2820 scan_suspend_time = 0xFF0FFFFF &
2821 (extra | ((suspend_time % interval) * 1024));
2823 scan->suspend_time = cpu_to_le32(scan_suspend_time);
2824 IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n",
2825 scan_suspend_time, interval);
2828 if (priv->scan_request->n_ssids) {
2830 IWL_DEBUG_SCAN(priv, "Kicking off active scan\n");
2831 for (i = 0; i < priv->scan_request->n_ssids; i++) {
2832 /* always does wildcard anyway */
2833 if (!priv->scan_request->ssids[i].ssid_len)
2835 scan->direct_scan[p].id = WLAN_EID_SSID;
2836 scan->direct_scan[p].len =
2837 priv->scan_request->ssids[i].ssid_len;
2838 memcpy(scan->direct_scan[p].ssid,
2839 priv->scan_request->ssids[i].ssid,
2840 priv->scan_request->ssids[i].ssid_len);
2846 IWL_DEBUG_SCAN(priv, "Kicking off passive scan.\n");
2848 /* We don't build a direct scan probe request; the uCode will do
2849 * that based on the direct_mask added to each channel entry */
2850 scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
2851 scan->tx_cmd.sta_id = priv->hw_params.bcast_sta_id;
2852 scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
2854 /* flags + rate selection */
2856 if (priv->scan_bands & BIT(IEEE80211_BAND_2GHZ)) {
2857 scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
2858 scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
2859 scan->good_CRC_th = 0;
2860 band = IEEE80211_BAND_2GHZ;
2861 } else if (priv->scan_bands & BIT(IEEE80211_BAND_5GHZ)) {
2862 scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
2864 * If active scaning is requested but a certain channel
2865 * is marked passive, we can do active scanning if we
2866 * detect transmissions.
2868 scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH : 0;
2869 band = IEEE80211_BAND_5GHZ;
2871 IWL_WARN(priv, "Invalid scan band count\n");
2875 scan->tx_cmd.len = cpu_to_le16(
2876 iwl_fill_probe_req(priv,
2877 (struct ieee80211_mgmt *)scan->data,
2878 priv->scan_request->ie,
2879 priv->scan_request->ie_len,
2880 IWL_MAX_SCAN_SIZE - sizeof(*scan)));
2882 /* select Rx antennas */
2883 scan->flags |= iwl3945_get_antenna_flags(priv);
2885 if (iwl_is_monitor_mode(priv))
2886 scan->filter_flags = RXON_FILTER_PROMISC_MSK;
2888 scan->channel_count =
2889 iwl3945_get_channels_for_scan(priv, band, is_active, n_probes,
2890 (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]);
2892 if (scan->channel_count == 0) {
2893 IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count);
2897 cmd.len += le16_to_cpu(scan->tx_cmd.len) +
2898 scan->channel_count * sizeof(struct iwl3945_scan_channel);
2900 scan->len = cpu_to_le16(cmd.len);
2902 set_bit(STATUS_SCAN_HW, &priv->status);
2903 rc = iwl_send_cmd_sync(priv, &cmd);
2907 queue_delayed_work(priv->workqueue, &priv->scan_check,
2908 IWL_SCAN_CHECK_WATCHDOG);
2910 mutex_unlock(&priv->mutex);
2914 /* can not perform scan make sure we clear scanning
2915 * bits from status so next scan request can be performed.
2916 * if we dont clear scanning status bit here all next scan
2919 clear_bit(STATUS_SCAN_HW, &priv->status);
2920 clear_bit(STATUS_SCANNING, &priv->status);
2922 /* inform mac80211 scan aborted */
2923 queue_work(priv->workqueue, &priv->scan_completed);
2924 mutex_unlock(&priv->mutex);
2927 static void iwl3945_bg_up(struct work_struct *data)
2929 struct iwl_priv *priv = container_of(data, struct iwl_priv, up);
2931 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2934 mutex_lock(&priv->mutex);
2936 mutex_unlock(&priv->mutex);
2939 static void iwl3945_bg_restart(struct work_struct *data)
2941 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
2943 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2946 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
2947 mutex_lock(&priv->mutex);
2950 mutex_unlock(&priv->mutex);
2952 ieee80211_restart_hw(priv->hw);
2955 queue_work(priv->workqueue, &priv->up);
2959 static void iwl3945_bg_rx_replenish(struct work_struct *data)
2961 struct iwl_priv *priv =
2962 container_of(data, struct iwl_priv, rx_replenish);
2964 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2967 mutex_lock(&priv->mutex);
2968 iwl3945_rx_replenish(priv);
2969 mutex_unlock(&priv->mutex);
2972 #define IWL_DELAY_NEXT_SCAN (HZ*2)
2974 void iwl3945_post_associate(struct iwl_priv *priv)
2977 struct ieee80211_conf *conf = NULL;
2979 if (priv->iw_mode == NL80211_IFTYPE_AP) {
2980 IWL_ERR(priv, "%s Should not be called in AP mode\n", __func__);
2985 IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
2986 priv->assoc_id, priv->active_rxon.bssid_addr);
2988 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
2991 if (!priv->vif || !priv->is_open)
2994 iwl_scan_cancel_timeout(priv, 200);
2996 conf = ieee80211_get_hw_conf(priv->hw);
2998 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2999 iwlcore_commit_rxon(priv);
3001 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
3002 iwl_setup_rxon_timing(priv);
3003 rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
3004 sizeof(priv->rxon_timing), &priv->rxon_timing);
3006 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
3007 "Attempting to continue.\n");
3009 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
3011 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
3013 IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n",
3014 priv->assoc_id, priv->beacon_int);
3016 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
3017 priv->staging_rxon.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
3019 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
3021 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
3022 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_SLOT_TIME)
3023 priv->staging_rxon.flags |= RXON_FLG_SHORT_SLOT_MSK;
3025 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
3027 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
3028 priv->staging_rxon.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
3032 iwlcore_commit_rxon(priv);
3034 switch (priv->iw_mode) {
3035 case NL80211_IFTYPE_STATION:
3036 iwl3945_rate_scale_init(priv->hw, IWL_AP_ID);
3039 case NL80211_IFTYPE_ADHOC:
3042 iwl_add_station(priv, priv->bssid, 0, CMD_SYNC, NULL);
3043 iwl3945_sync_sta(priv, IWL_STA_ID,
3044 (priv->band == IEEE80211_BAND_5GHZ) ?
3045 IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP,
3047 iwl3945_rate_scale_init(priv->hw, IWL_STA_ID);
3048 iwl3945_send_beacon_cmd(priv);
3053 IWL_ERR(priv, "%s Should not be called in %d mode\n",
3054 __func__, priv->iw_mode);
3058 iwl_activate_qos(priv, 0);
3060 /* we have just associated, don't start scan too early */
3061 priv->next_scan_jiffies = jiffies + IWL_DELAY_NEXT_SCAN;
3064 /*****************************************************************************
3066 * mac80211 entry point functions
3068 *****************************************************************************/
3070 #define UCODE_READY_TIMEOUT (2 * HZ)
3072 static int iwl3945_mac_start(struct ieee80211_hw *hw)
3074 struct iwl_priv *priv = hw->priv;
3077 IWL_DEBUG_MAC80211(priv, "enter\n");
3079 /* we should be verifying the device is ready to be opened */
3080 mutex_lock(&priv->mutex);
3082 /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
3083 * ucode filename and max sizes are card-specific. */
3085 if (!priv->ucode_code.len) {
3086 ret = iwl3945_read_ucode(priv);
3088 IWL_ERR(priv, "Could not read microcode: %d\n", ret);
3089 mutex_unlock(&priv->mutex);
3090 goto out_release_irq;
3094 ret = __iwl3945_up(priv);
3096 mutex_unlock(&priv->mutex);
3099 goto out_release_irq;
3101 IWL_DEBUG_INFO(priv, "Start UP work.\n");
3103 /* Wait for START_ALIVE from ucode. Otherwise callbacks from
3104 * mac80211 will not be run successfully. */
3105 ret = wait_event_interruptible_timeout(priv->wait_command_queue,
3106 test_bit(STATUS_READY, &priv->status),
3107 UCODE_READY_TIMEOUT);
3109 if (!test_bit(STATUS_READY, &priv->status)) {
3111 "Wait for START_ALIVE timeout after %dms.\n",
3112 jiffies_to_msecs(UCODE_READY_TIMEOUT));
3114 goto out_release_irq;
3118 /* ucode is running and will send rfkill notifications,
3119 * no need to poll the killswitch state anymore */
3120 cancel_delayed_work(&priv->rfkill_poll);
3123 IWL_DEBUG_MAC80211(priv, "leave\n");
3128 IWL_DEBUG_MAC80211(priv, "leave - failed\n");
3132 static void iwl3945_mac_stop(struct ieee80211_hw *hw)
3134 struct iwl_priv *priv = hw->priv;
3136 IWL_DEBUG_MAC80211(priv, "enter\n");
3138 if (!priv->is_open) {
3139 IWL_DEBUG_MAC80211(priv, "leave - skip\n");
3145 if (iwl_is_ready_rf(priv)) {
3146 /* stop mac, cancel any scan request and clear
3147 * RXON_FILTER_ASSOC_MSK BIT
3149 mutex_lock(&priv->mutex);
3150 iwl_scan_cancel_timeout(priv, 100);
3151 mutex_unlock(&priv->mutex);
3156 flush_workqueue(priv->workqueue);
3158 /* start polling the killswitch state again */
3159 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
3160 round_jiffies_relative(2 * HZ));
3162 IWL_DEBUG_MAC80211(priv, "leave\n");
3165 static int iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
3167 struct iwl_priv *priv = hw->priv;
3169 IWL_DEBUG_MAC80211(priv, "enter\n");
3171 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
3172 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
3174 if (iwl3945_tx_skb(priv, skb))
3175 dev_kfree_skb_any(skb);
3177 IWL_DEBUG_MAC80211(priv, "leave\n");
3178 return NETDEV_TX_OK;
3181 void iwl3945_config_ap(struct iwl_priv *priv)
3185 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
3188 /* The following should be done only at AP bring up */
3189 if (!(iwl_is_associated(priv))) {
3191 /* RXON - unassoc (to set timing command) */
3192 priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
3193 iwlcore_commit_rxon(priv);
3196 memset(&priv->rxon_timing, 0, sizeof(struct iwl_rxon_time_cmd));
3197 iwl_setup_rxon_timing(priv);
3198 rc = iwl_send_cmd_pdu(priv, REPLY_RXON_TIMING,
3199 sizeof(priv->rxon_timing),
3200 &priv->rxon_timing);
3202 IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
3203 "Attempting to continue.\n");
3205 /* FIXME: what should be the assoc_id for AP? */
3206 priv->staging_rxon.assoc_id = cpu_to_le16(priv->assoc_id);
3207 if (priv->assoc_capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
3208 priv->staging_rxon.flags |=
3209 RXON_FLG_SHORT_PREAMBLE_MSK;
3211 priv->staging_rxon.flags &=
3212 ~RXON_FLG_SHORT_PREAMBLE_MSK;
3214 if (priv->staging_rxon.flags & RXON_FLG_BAND_24G_MSK) {
3215 if (priv->assoc_capability &
3216 WLAN_CAPABILITY_SHORT_SLOT_TIME)
3217 priv->staging_rxon.flags |=
3218 RXON_FLG_SHORT_SLOT_MSK;
3220 priv->staging_rxon.flags &=
3221 ~RXON_FLG_SHORT_SLOT_MSK;
3223 if (priv->iw_mode == NL80211_IFTYPE_ADHOC)
3224 priv->staging_rxon.flags &=
3225 ~RXON_FLG_SHORT_SLOT_MSK;
3227 /* restore RXON assoc */
3228 priv->staging_rxon.filter_flags |= RXON_FILTER_ASSOC_MSK;
3229 iwlcore_commit_rxon(priv);
3230 iwl_add_station(priv, iwl_bcast_addr, 0, CMD_SYNC, NULL);
3232 iwl3945_send_beacon_cmd(priv);
3234 /* FIXME - we need to add code here to detect a totally new
3235 * configuration, reset the AP, unassoc, rxon timing, assoc,
3236 * clear sta table, add BCAST sta... */
3239 static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
3240 struct ieee80211_vif *vif,
3241 struct ieee80211_sta *sta,
3242 struct ieee80211_key_conf *key)
3244 struct iwl_priv *priv = hw->priv;
3247 u8 sta_id = IWL_INVALID_STATION;
3250 IWL_DEBUG_MAC80211(priv, "enter\n");
3252 if (iwl3945_mod_params.sw_crypto) {
3253 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
3257 addr = sta ? sta->addr : iwl_bcast_addr;
3258 static_key = !iwl_is_associated(priv);
3261 sta_id = iwl_find_station(priv, addr);
3262 if (sta_id == IWL_INVALID_STATION) {
3263 IWL_DEBUG_MAC80211(priv, "leave - %pM not in station map.\n",
3269 mutex_lock(&priv->mutex);
3270 iwl_scan_cancel_timeout(priv, 100);
3271 mutex_unlock(&priv->mutex);
3276 ret = iwl3945_set_static_key(priv, key);
3278 ret = iwl3945_set_dynamic_key(priv, key, sta_id);
3279 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
3283 ret = iwl3945_remove_static_key(priv);
3285 ret = iwl3945_clear_sta_key_info(priv, sta_id);
3286 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
3292 IWL_DEBUG_MAC80211(priv, "leave\n");
3297 /*****************************************************************************
3301 *****************************************************************************/
3303 #ifdef CONFIG_IWLWIFI_DEBUG
3306 * The following adds a new attribute to the sysfs representation
3307 * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
3308 * used for controlling the debug level.
3310 * See the level definitions in iwl for details.
3312 static ssize_t show_debug_level(struct device *d,
3313 struct device_attribute *attr, char *buf)
3315 struct iwl_priv *priv = dev_get_drvdata(d);
3317 return sprintf(buf, "0x%08X\n", priv->debug_level);
3319 static ssize_t store_debug_level(struct device *d,
3320 struct device_attribute *attr,
3321 const char *buf, size_t count)
3323 struct iwl_priv *priv = dev_get_drvdata(d);
3327 ret = strict_strtoul(buf, 0, &val);
3329 IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
3331 priv->debug_level = val;
3333 return strnlen(buf, count);
3336 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
3337 show_debug_level, store_debug_level);
3339 #endif /* CONFIG_IWLWIFI_DEBUG */
3341 static ssize_t show_temperature(struct device *d,
3342 struct device_attribute *attr, char *buf)
3344 struct iwl_priv *priv = dev_get_drvdata(d);
3346 if (!iwl_is_alive(priv))
3349 return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv));
3352 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
3354 static ssize_t show_tx_power(struct device *d,
3355 struct device_attribute *attr, char *buf)
3357 struct iwl_priv *priv = dev_get_drvdata(d);
3358 return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
3361 static ssize_t store_tx_power(struct device *d,
3362 struct device_attribute *attr,
3363 const char *buf, size_t count)
3365 struct iwl_priv *priv = dev_get_drvdata(d);
3366 char *p = (char *)buf;
3369 val = simple_strtoul(p, &p, 10);
3371 IWL_INFO(priv, ": %s is not in decimal form.\n", buf);
3373 iwl3945_hw_reg_set_txpower(priv, val);
3378 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
3380 static ssize_t show_flags(struct device *d,
3381 struct device_attribute *attr, char *buf)
3383 struct iwl_priv *priv = dev_get_drvdata(d);
3385 return sprintf(buf, "0x%04X\n", priv->active_rxon.flags);
3388 static ssize_t store_flags(struct device *d,
3389 struct device_attribute *attr,
3390 const char *buf, size_t count)
3392 struct iwl_priv *priv = dev_get_drvdata(d);
3393 u32 flags = simple_strtoul(buf, NULL, 0);
3395 mutex_lock(&priv->mutex);
3396 if (le32_to_cpu(priv->staging_rxon.flags) != flags) {
3397 /* Cancel any currently running scans... */
3398 if (iwl_scan_cancel_timeout(priv, 100))
3399 IWL_WARN(priv, "Could not cancel scan.\n");
3401 IWL_DEBUG_INFO(priv, "Committing rxon.flags = 0x%04X\n",
3403 priv->staging_rxon.flags = cpu_to_le32(flags);
3404 iwlcore_commit_rxon(priv);
3407 mutex_unlock(&priv->mutex);
3412 static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, show_flags, store_flags);
3414 static ssize_t show_filter_flags(struct device *d,
3415 struct device_attribute *attr, char *buf)
3417 struct iwl_priv *priv = dev_get_drvdata(d);
3419 return sprintf(buf, "0x%04X\n",
3420 le32_to_cpu(priv->active_rxon.filter_flags));
3423 static ssize_t store_filter_flags(struct device *d,
3424 struct device_attribute *attr,
3425 const char *buf, size_t count)
3427 struct iwl_priv *priv = dev_get_drvdata(d);
3428 u32 filter_flags = simple_strtoul(buf, NULL, 0);
3430 mutex_lock(&priv->mutex);
3431 if (le32_to_cpu(priv->staging_rxon.filter_flags) != filter_flags) {
3432 /* Cancel any currently running scans... */
3433 if (iwl_scan_cancel_timeout(priv, 100))
3434 IWL_WARN(priv, "Could not cancel scan.\n");
3436 IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = "
3437 "0x%04X\n", filter_flags);
3438 priv->staging_rxon.filter_flags =
3439 cpu_to_le32(filter_flags);
3440 iwlcore_commit_rxon(priv);
3443 mutex_unlock(&priv->mutex);
3448 static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, show_filter_flags,
3449 store_filter_flags);
3451 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3453 static ssize_t show_measurement(struct device *d,
3454 struct device_attribute *attr, char *buf)
3456 struct iwl_priv *priv = dev_get_drvdata(d);
3457 struct iwl_spectrum_notification measure_report;
3458 u32 size = sizeof(measure_report), len = 0, ofs = 0;
3459 u8 *data = (u8 *)&measure_report;
3460 unsigned long flags;
3462 spin_lock_irqsave(&priv->lock, flags);
3463 if (!(priv->measurement_status & MEASUREMENT_READY)) {
3464 spin_unlock_irqrestore(&priv->lock, flags);
3467 memcpy(&measure_report, &priv->measure_report, size);
3468 priv->measurement_status = 0;
3469 spin_unlock_irqrestore(&priv->lock, flags);
3471 while (size && (PAGE_SIZE - len)) {
3472 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
3473 PAGE_SIZE - len, 1);
3475 if (PAGE_SIZE - len)
3479 size -= min(size, 16U);
3485 static ssize_t store_measurement(struct device *d,
3486 struct device_attribute *attr,
3487 const char *buf, size_t count)
3489 struct iwl_priv *priv = dev_get_drvdata(d);
3490 struct ieee80211_measurement_params params = {
3491 .channel = le16_to_cpu(priv->active_rxon.channel),
3492 .start_time = cpu_to_le64(priv->last_tsf),
3493 .duration = cpu_to_le16(1),
3495 u8 type = IWL_MEASURE_BASIC;
3501 strncpy(buffer, buf, min(sizeof(buffer), count));
3502 channel = simple_strtoul(p, NULL, 0);
3504 params.channel = channel;
3507 while (*p && *p != ' ')
3510 type = simple_strtoul(p + 1, NULL, 0);
3513 IWL_DEBUG_INFO(priv, "Invoking measurement of type %d on "
3514 "channel %d (for '%s')\n", type, params.channel, buf);
3515 iwl3945_get_measurement(priv, ¶ms, type);
3520 static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
3521 show_measurement, store_measurement);
3522 #endif /* CONFIG_IWL3945_SPECTRUM_MEASUREMENT */
3524 static ssize_t store_retry_rate(struct device *d,
3525 struct device_attribute *attr,
3526 const char *buf, size_t count)
3528 struct iwl_priv *priv = dev_get_drvdata(d);
3530 priv->retry_rate = simple_strtoul(buf, NULL, 0);
3531 if (priv->retry_rate <= 0)
3532 priv->retry_rate = 1;
3537 static ssize_t show_retry_rate(struct device *d,
3538 struct device_attribute *attr, char *buf)
3540 struct iwl_priv *priv = dev_get_drvdata(d);
3541 return sprintf(buf, "%d", priv->retry_rate);
3544 static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, show_retry_rate,
3548 static ssize_t store_power_level(struct device *d,
3549 struct device_attribute *attr,
3550 const char *buf, size_t count)
3552 struct iwl_priv *priv = dev_get_drvdata(d);
3557 mutex_lock(&priv->mutex);
3559 ret = strict_strtoul(buf, 10, &mode);
3563 ret = iwl_power_set_user_mode(priv, mode);
3565 IWL_DEBUG_MAC80211(priv, "failed setting power mode.\n");
3571 mutex_unlock(&priv->mutex);
3575 static ssize_t show_power_level(struct device *d,
3576 struct device_attribute *attr, char *buf)
3578 struct iwl_priv *priv = dev_get_drvdata(d);
3579 int level = priv->power_data.power_mode;
3582 p += sprintf(p, "%d\n", level);
3586 static DEVICE_ATTR(power_level, S_IWUSR | S_IRUSR,
3587 show_power_level, store_power_level);
3589 #define MAX_WX_STRING 80
3591 /* Values are in microsecond */
3592 static const s32 timeout_duration[] = {
3599 static const s32 period_duration[] = {
3607 static ssize_t show_channels(struct device *d,
3608 struct device_attribute *attr, char *buf)
3610 /* all this shit doesn't belong into sysfs anyway */
3614 static DEVICE_ATTR(channels, S_IRUSR, show_channels, NULL);
3616 static ssize_t show_statistics(struct device *d,
3617 struct device_attribute *attr, char *buf)
3619 struct iwl_priv *priv = dev_get_drvdata(d);
3620 u32 size = sizeof(struct iwl3945_notif_statistics);
3621 u32 len = 0, ofs = 0;
3622 u8 *data = (u8 *)&priv->statistics_39;
3625 if (!iwl_is_alive(priv))
3628 mutex_lock(&priv->mutex);
3629 rc = iwl_send_statistics_request(priv, 0);
3630 mutex_unlock(&priv->mutex);
3634 "Error sending statistics request: 0x%08X\n", rc);
3638 while (size && (PAGE_SIZE - len)) {
3639 hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
3640 PAGE_SIZE - len, 1);
3642 if (PAGE_SIZE - len)
3646 size -= min(size, 16U);
3652 static DEVICE_ATTR(statistics, S_IRUGO, show_statistics, NULL);
3654 static ssize_t show_antenna(struct device *d,
3655 struct device_attribute *attr, char *buf)
3657 struct iwl_priv *priv = dev_get_drvdata(d);
3659 if (!iwl_is_alive(priv))
3662 return sprintf(buf, "%d\n", iwl3945_mod_params.antenna);
3665 static ssize_t store_antenna(struct device *d,
3666 struct device_attribute *attr,
3667 const char *buf, size_t count)
3669 struct iwl_priv *priv __maybe_unused = dev_get_drvdata(d);
3675 if (sscanf(buf, "%1i", &ant) != 1) {
3676 IWL_DEBUG_INFO(priv, "not in hex or decimal form.\n");
3680 if ((ant >= 0) && (ant <= 2)) {
3681 IWL_DEBUG_INFO(priv, "Setting antenna select to %d.\n", ant);
3682 iwl3945_mod_params.antenna = (enum iwl3945_antenna)ant;
3684 IWL_DEBUG_INFO(priv, "Bad antenna select value %d.\n", ant);
3690 static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, show_antenna, store_antenna);
3692 static ssize_t show_status(struct device *d,
3693 struct device_attribute *attr, char *buf)
3695 struct iwl_priv *priv = dev_get_drvdata(d);
3696 if (!iwl_is_alive(priv))
3698 return sprintf(buf, "0x%08x\n", (int)priv->status);
3701 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
3703 static ssize_t dump_error_log(struct device *d,
3704 struct device_attribute *attr,
3705 const char *buf, size_t count)
3707 struct iwl_priv *priv = dev_get_drvdata(d);
3708 char *p = (char *)buf;
3711 iwl3945_dump_nic_error_log(priv);
3713 return strnlen(buf, count);
3716 static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, dump_error_log);
3718 static ssize_t dump_event_log(struct device *d,
3719 struct device_attribute *attr,
3720 const char *buf, size_t count)
3722 struct iwl_priv *priv = dev_get_drvdata(d);
3723 char *p = (char *)buf;
3726 iwl3945_dump_nic_event_log(priv);
3728 return strnlen(buf, count);
3731 static DEVICE_ATTR(dump_events, S_IWUSR, NULL, dump_event_log);
3733 /*****************************************************************************
3735 * driver setup and tear down
3737 *****************************************************************************/
3739 static void iwl3945_setup_deferred_work(struct iwl_priv *priv)
3741 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
3743 init_waitqueue_head(&priv->wait_command_queue);
3745 INIT_WORK(&priv->up, iwl3945_bg_up);
3746 INIT_WORK(&priv->restart, iwl3945_bg_restart);
3747 INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish);
3748 INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update);
3749 INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start);
3750 INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start);
3751 INIT_DELAYED_WORK(&priv->rfkill_poll, iwl3945_rfkill_poll);
3752 INIT_WORK(&priv->scan_completed, iwl_bg_scan_completed);
3753 INIT_WORK(&priv->request_scan, iwl3945_bg_request_scan);
3754 INIT_WORK(&priv->abort_scan, iwl_bg_abort_scan);
3755 INIT_DELAYED_WORK(&priv->scan_check, iwl_bg_scan_check);
3757 iwl3945_hw_setup_deferred_work(priv);
3759 tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
3760 iwl3945_irq_tasklet, (unsigned long)priv);
3763 static void iwl3945_cancel_deferred_work(struct iwl_priv *priv)
3765 iwl3945_hw_cancel_deferred_work(priv);
3767 cancel_delayed_work_sync(&priv->init_alive_start);
3768 cancel_delayed_work(&priv->scan_check);
3769 cancel_delayed_work(&priv->alive_start);
3770 cancel_work_sync(&priv->beacon_update);
3773 static struct attribute *iwl3945_sysfs_entries[] = {
3774 &dev_attr_antenna.attr,
3775 &dev_attr_channels.attr,
3776 &dev_attr_dump_errors.attr,
3777 &dev_attr_dump_events.attr,
3778 &dev_attr_flags.attr,
3779 &dev_attr_filter_flags.attr,
3780 #ifdef CONFIG_IWL3945_SPECTRUM_MEASUREMENT
3781 &dev_attr_measurement.attr,
3783 &dev_attr_power_level.attr,
3784 &dev_attr_retry_rate.attr,
3785 &dev_attr_statistics.attr,
3786 &dev_attr_status.attr,
3787 &dev_attr_temperature.attr,
3788 &dev_attr_tx_power.attr,
3789 #ifdef CONFIG_IWLWIFI_DEBUG
3790 &dev_attr_debug_level.attr,
3795 static struct attribute_group iwl3945_attribute_group = {
3796 .name = NULL, /* put in device directory */
3797 .attrs = iwl3945_sysfs_entries,
3800 static struct ieee80211_ops iwl3945_hw_ops = {
3801 .tx = iwl3945_mac_tx,
3802 .start = iwl3945_mac_start,
3803 .stop = iwl3945_mac_stop,
3804 .add_interface = iwl_mac_add_interface,
3805 .remove_interface = iwl_mac_remove_interface,
3806 .config = iwl_mac_config,
3807 .configure_filter = iwl_configure_filter,
3808 .set_key = iwl3945_mac_set_key,
3809 .get_tx_stats = iwl_mac_get_tx_stats,
3810 .conf_tx = iwl_mac_conf_tx,
3811 .reset_tsf = iwl_mac_reset_tsf,
3812 .bss_info_changed = iwl_bss_info_changed,
3813 .hw_scan = iwl_mac_hw_scan
3816 static int iwl3945_init_drv(struct iwl_priv *priv)
3819 struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
3821 priv->retry_rate = 1;
3822 priv->ibss_beacon = NULL;
3824 spin_lock_init(&priv->lock);
3825 spin_lock_init(&priv->sta_lock);
3826 spin_lock_init(&priv->hcmd_lock);
3828 INIT_LIST_HEAD(&priv->free_frames);
3830 mutex_init(&priv->mutex);
3832 /* Clear the driver's (not device's) station table */
3833 iwl_clear_stations_table(priv);
3835 priv->data_retry_limit = -1;
3836 priv->ieee_channels = NULL;
3837 priv->ieee_rates = NULL;
3838 priv->band = IEEE80211_BAND_2GHZ;
3840 priv->iw_mode = NL80211_IFTYPE_STATION;
3842 iwl_reset_qos(priv);
3844 priv->qos_data.qos_active = 0;
3845 priv->qos_data.qos_cap.val = 0;
3847 priv->rates_mask = IWL_RATES_MASK;
3848 /* If power management is turned on, default to CAM mode */
3849 priv->power_mode = IWL_POWER_MODE_CAM;
3850 priv->tx_power_user_lmt = IWL_DEFAULT_TX_POWER;
3852 if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {
3853 IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n",
3858 ret = iwl_init_channel_map(priv);
3860 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
3864 /* Set up txpower settings in driver for all channels */
3865 if (iwl3945_txpower_set_from_eeprom(priv)) {
3867 goto err_free_channel_map;
3870 ret = iwlcore_init_geos(priv);
3872 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
3873 goto err_free_channel_map;
3875 iwl3945_init_hw_rates(priv, priv->ieee_rates);
3879 err_free_channel_map:
3880 iwl_free_channel_map(priv);
3885 static int iwl3945_setup_mac(struct iwl_priv *priv)
3888 struct ieee80211_hw *hw = priv->hw;
3890 hw->rate_control_algorithm = "iwl-3945-rs";
3891 hw->sta_data_size = sizeof(struct iwl3945_sta_priv);
3893 /* Tell mac80211 our characteristics */
3894 hw->flags = IEEE80211_HW_SIGNAL_DBM |
3895 IEEE80211_HW_NOISE_DBM |
3896 IEEE80211_HW_SPECTRUM_MGMT;
3898 hw->wiphy->interface_modes =
3899 BIT(NL80211_IFTYPE_STATION) |
3900 BIT(NL80211_IFTYPE_ADHOC);
3902 hw->wiphy->custom_regulatory = true;
3904 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945;
3905 /* we create the 802.11 header and a zero-length SSID element */
3906 hw->wiphy->max_scan_ie_len = IWL_MAX_PROBE_REQUEST - 24 - 2;
3908 /* Default value; 4 EDCA QOS priorities */
3911 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
3912 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
3913 &priv->bands[IEEE80211_BAND_2GHZ];
3915 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
3916 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
3917 &priv->bands[IEEE80211_BAND_5GHZ];
3919 ret = ieee80211_register_hw(priv->hw);
3921 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
3924 priv->mac80211_registered = 1;
3929 static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
3932 struct iwl_priv *priv;
3933 struct ieee80211_hw *hw;
3934 struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
3935 struct iwl3945_eeprom *eeprom;
3936 unsigned long flags;
3938 /***********************
3939 * 1. Allocating HW data
3940 * ********************/
3942 /* mac80211 allocates memory for this device instance, including
3943 * space for this driver's private structure */
3944 hw = iwl_alloc_all(cfg, &iwl3945_hw_ops);
3946 printk(KERN_ERR DRV_NAME "Can not allocate network device\n");
3951 SET_IEEE80211_DEV(hw, &pdev->dev);
3954 * Disabling hardware scan means that mac80211 will perform scans
3955 * "the hard way", rather than using device's scan.
3957 if (iwl3945_mod_params.disable_hw_scan) {
3958 IWL_DEBUG_INFO(priv, "Disabling hw_scan\n");
3959 iwl3945_hw_ops.hw_scan = NULL;
3963 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
3965 priv->pci_dev = pdev;
3966 priv->inta_mask = CSR_INI_SET_MASK;
3968 #ifdef CONFIG_IWLWIFI_DEBUG
3969 priv->debug_level = iwl3945_mod_params.debug;
3970 atomic_set(&priv->restrict_refcnt, 0);
3973 /***************************
3974 * 2. Initializing PCI bus
3975 * *************************/
3976 if (pci_enable_device(pdev)) {
3978 goto out_ieee80211_free_hw;
3981 pci_set_master(pdev);
3983 err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
3985 err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
3987 IWL_WARN(priv, "No suitable DMA available.\n");
3988 goto out_pci_disable_device;
3991 pci_set_drvdata(pdev, priv);
3992 err = pci_request_regions(pdev, DRV_NAME);
3994 goto out_pci_disable_device;
3996 /***********************
3997 * 3. Read REV Register
3998 * ********************/
3999 priv->hw_base = pci_iomap(pdev, 0, 0);
4000 if (!priv->hw_base) {
4002 goto out_pci_release_regions;
4005 IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n",
4006 (unsigned long long) pci_resource_len(pdev, 0));
4007 IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base);
4009 /* We disable the RETRY_TIMEOUT register (0x41) to keep
4010 * PCI Tx retries from interfering with C3 CPU state */
4011 pci_write_config_byte(pdev, 0x41, 0x00);
4013 /* this spin lock will be used in apm_ops.init and EEPROM access
4014 * we should init now
4016 spin_lock_init(&priv->reg_lock);
4019 err = priv->cfg->ops->lib->apm_ops.init(priv);
4021 IWL_DEBUG_INFO(priv, "Failed to init the card\n");
4025 /***********************
4027 * ********************/
4029 /* Read the EEPROM */
4030 err = iwl_eeprom_init(priv);
4032 IWL_ERR(priv, "Unable to init EEPROM\n");
4035 /* MAC Address location in EEPROM same for 3945/4965 */
4036 eeprom = (struct iwl3945_eeprom *)priv->eeprom;
4037 memcpy(priv->mac_addr, eeprom->mac_address, ETH_ALEN);
4038 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->mac_addr);
4039 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
4041 /***********************
4042 * 5. Setup HW Constants
4043 * ********************/
4044 /* Device-specific setup */
4045 if (iwl3945_hw_set_hw_params(priv)) {
4046 IWL_ERR(priv, "failed to set hw settings\n");
4047 goto out_eeprom_free;
4050 /***********************
4052 * ********************/
4054 err = iwl3945_init_drv(priv);
4056 IWL_ERR(priv, "initializing driver failed\n");
4057 goto out_unset_hw_params;
4060 IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n",
4063 /***********************
4065 * ********************/
4067 spin_lock_irqsave(&priv->lock, flags);
4068 iwl_disable_interrupts(priv);
4069 spin_unlock_irqrestore(&priv->lock, flags);
4071 pci_enable_msi(priv->pci_dev);
4073 err = request_irq(priv->pci_dev->irq, priv->cfg->ops->lib->isr,
4074 IRQF_SHARED, DRV_NAME, priv);
4076 IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
4077 goto out_disable_msi;
4080 err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group);
4082 IWL_ERR(priv, "failed to create sysfs device attributes\n");
4083 goto out_release_irq;
4086 iwl_set_rxon_channel(priv,
4087 &priv->bands[IEEE80211_BAND_2GHZ].channels[5]);
4088 iwl3945_setup_deferred_work(priv);
4089 iwl3945_setup_rx_handlers(priv);
4091 /*********************************
4092 * 8. Setup and Register mac80211
4093 * *******************************/
4095 iwl_enable_interrupts(priv);
4097 err = iwl3945_setup_mac(priv);
4099 goto out_remove_sysfs;
4101 err = iwl_dbgfs_register(priv, DRV_NAME);
4103 IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
4105 /* Start monitoring the killswitch */
4106 queue_delayed_work(priv->workqueue, &priv->rfkill_poll,
4112 destroy_workqueue(priv->workqueue);
4113 priv->workqueue = NULL;
4114 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
4116 free_irq(priv->pci_dev->irq, priv);
4118 pci_disable_msi(priv->pci_dev);
4119 iwlcore_free_geos(priv);
4120 iwl_free_channel_map(priv);
4121 out_unset_hw_params:
4122 iwl3945_unset_hw_params(priv);
4124 iwl_eeprom_free(priv);
4126 pci_iounmap(pdev, priv->hw_base);
4127 out_pci_release_regions:
4128 pci_release_regions(pdev);
4129 out_pci_disable_device:
4130 pci_set_drvdata(pdev, NULL);
4131 pci_disable_device(pdev);
4132 out_ieee80211_free_hw:
4133 ieee80211_free_hw(priv->hw);
4138 static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
4140 struct iwl_priv *priv = pci_get_drvdata(pdev);
4141 unsigned long flags;
4146 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
4148 iwl_dbgfs_unregister(priv);
4150 set_bit(STATUS_EXIT_PENDING, &priv->status);
4152 if (priv->mac80211_registered) {
4153 ieee80211_unregister_hw(priv->hw);
4154 priv->mac80211_registered = 0;
4159 /* make sure we flush any pending irq or
4160 * tasklet for the driver
4162 spin_lock_irqsave(&priv->lock, flags);
4163 iwl_disable_interrupts(priv);
4164 spin_unlock_irqrestore(&priv->lock, flags);
4166 iwl_synchronize_irq(priv);
4168 sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
4170 cancel_delayed_work_sync(&priv->rfkill_poll);
4172 iwl3945_dealloc_ucode_pci(priv);
4175 iwl3945_rx_queue_free(priv, &priv->rxq);
4176 iwl3945_hw_txq_ctx_free(priv);
4178 iwl3945_unset_hw_params(priv);
4179 iwl_clear_stations_table(priv);
4181 /*netif_stop_queue(dev); */
4182 flush_workqueue(priv->workqueue);
4184 /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
4185 * priv->workqueue... so we can't take down the workqueue
4187 destroy_workqueue(priv->workqueue);
4188 priv->workqueue = NULL;
4190 free_irq(pdev->irq, priv);
4191 pci_disable_msi(pdev);
4193 pci_iounmap(pdev, priv->hw_base);
4194 pci_release_regions(pdev);
4195 pci_disable_device(pdev);
4196 pci_set_drvdata(pdev, NULL);
4198 iwl_free_channel_map(priv);
4199 iwlcore_free_geos(priv);
4201 if (priv->ibss_beacon)
4202 dev_kfree_skb(priv->ibss_beacon);
4204 ieee80211_free_hw(priv->hw);
4208 /*****************************************************************************
4210 * driver and module entry point
4212 *****************************************************************************/
4214 static struct pci_driver iwl3945_driver = {
4216 .id_table = iwl3945_hw_card_ids,
4217 .probe = iwl3945_pci_probe,
4218 .remove = __devexit_p(iwl3945_pci_remove),
4220 .suspend = iwl_pci_suspend,
4221 .resume = iwl_pci_resume,
4225 static int __init iwl3945_init(void)
4229 printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
4230 printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
4232 ret = iwl3945_rate_control_register();
4234 printk(KERN_ERR DRV_NAME
4235 "Unable to register rate control algorithm: %d\n", ret);
4239 ret = pci_register_driver(&iwl3945_driver);
4241 printk(KERN_ERR DRV_NAME "Unable to initialize PCI module\n");
4242 goto error_register;
4248 iwl3945_rate_control_unregister();
4252 static void __exit iwl3945_exit(void)
4254 pci_unregister_driver(&iwl3945_driver);
4255 iwl3945_rate_control_unregister();
4258 MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX));
4260 module_param_named(antenna, iwl3945_mod_params.antenna, int, 0444);
4261 MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
4262 module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, 0444);
4263 MODULE_PARM_DESC(swcrypto,
4264 "using software crypto (default 1 [software])\n");
4265 module_param_named(debug, iwl3945_mod_params.debug, uint, 0444);
4266 MODULE_PARM_DESC(debug, "debug output mask");
4267 module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan, int, 0444);
4268 MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)");
4269 module_param_named(fw_restart3945, iwl3945_mod_params.restart_fw, int, 0444);
4270 MODULE_PARM_DESC(fw_restart3945, "restart firmware in case of error");
4272 module_exit(iwl3945_exit);
4273 module_init(iwl3945_init);