*
* GPL LICENSE SUMMARY
*
- * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
#include "iwl-agn.h"
#include "iwl-sta.h"
-static inline u32 iwlagn_get_scd_ssn(struct iwl5000_tx_resp *tx_resp)
+static inline u32 iwlagn_get_scd_ssn(struct iwlagn_tx_resp *tx_resp)
{
return le32_to_cpup((__le32 *)&tx_resp->status +
tx_resp->frame_count) & MAX_SN;
static void iwlagn_set_tx_status(struct iwl_priv *priv,
struct ieee80211_tx_info *info,
- struct iwl5000_tx_resp *tx_resp,
+ struct iwl_rxon_context *ctx,
+ struct iwlagn_tx_resp *tx_resp,
int txq_id, bool is_agg)
{
u16 status = le16_to_cpu(tx_resp->status.status);
if (!iwl_is_tx_success(status))
iwlagn_count_tx_err_status(priv, status);
+ if (status == TX_STATUS_FAIL_PASSIVE_NO_RX &&
+ iwl_is_associated_ctx(ctx) && ctx->vif &&
+ ctx->vif->type == NL80211_IFTYPE_STATION) {
+ ctx->last_tx_rejected = true;
+ iwl_stop_queue(priv, &priv->txq[txq_id]);
+ }
+
IWL_DEBUG_TX_REPLY(priv, "TXQ %d status %s (0x%08x) rate_n_flags "
"0x%x retries %d\n",
txq_id,
static int iwlagn_tx_status_reply_tx(struct iwl_priv *priv,
struct iwl_ht_agg *agg,
- struct iwl5000_tx_resp *tx_resp,
+ struct iwlagn_tx_resp *tx_resp,
int txq_id, u16 start_idx)
{
u16 status;
/* # frames attempted by Tx command */
if (agg->frame_count == 1) {
+ struct iwl_tx_info *txb;
+
/* Only one frame was attempted; no block-ack will arrive */
idx = start_idx;
IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, StartIdx=%d idx=%d\n",
agg->frame_count, agg->start_idx, idx);
- iwlagn_set_tx_status(priv,
- IEEE80211_SKB_CB(
- priv->txq[txq_id].txb[idx].skb),
- tx_resp, txq_id, true);
+ txb = &priv->txq[txq_id].txb[idx];
+ iwlagn_set_tx_status(priv, IEEE80211_SKB_CB(txb->skb),
+ txb->ctx, tx_resp, txq_id, true);
agg->wait_for_ba = 0;
} else {
/* Two or more frames were attempted; expect block-ack */
int index = SEQ_TO_INDEX(sequence);
struct iwl_tx_queue *txq = &priv->txq[txq_id];
struct ieee80211_tx_info *info;
- struct iwl5000_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
- u32 status = le16_to_cpu(tx_resp->status.status);
+ struct iwlagn_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
+ struct iwl_tx_info *txb;
+ u32 status = le16_to_cpu(tx_resp->status.status);
int tid;
int sta_id;
int freed;
unsigned long flags;
if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) {
- IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
- "is out of range [0-%d] %d %d\n", txq_id,
- index, txq->q.n_bd, txq->q.write_ptr,
+ IWL_ERR(priv, "%s: Read index for DMA queue txq_id (%d) "
+ "index %d is out of range [0-%d] %d %d\n", __func__,
+ txq_id, index, txq->q.n_bd, txq->q.write_ptr,
txq->q.read_ptr);
return;
}
- info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
+ txq->time_stamp = jiffies;
+ txb = &txq->txb[txq->q.read_ptr];
+ info = IEEE80211_SKB_CB(txb->skb);
memset(&info->status, 0, sizeof(info->status));
- tid = (tx_resp->ra_tid & IWL50_TX_RES_TID_MSK) >> IWL50_TX_RES_TID_POS;
- sta_id = (tx_resp->ra_tid & IWL50_TX_RES_RA_MSK) >> IWL50_TX_RES_RA_POS;
+ tid = (tx_resp->ra_tid & IWLAGN_TX_RES_TID_MSK) >>
+ IWLAGN_TX_RES_TID_POS;
+ sta_id = (tx_resp->ra_tid & IWLAGN_TX_RES_RA_MSK) >>
+ IWLAGN_TX_RES_RA_POS;
spin_lock_irqsave(&priv->sta_lock, flags);
if (txq->sched_retry) {
if (tx_resp->bt_kill_count && tx_resp->frame_count == 1 &&
priv->cfg->bt_params &&
priv->cfg->bt_params->advanced_bt_coexist) {
- IWL_WARN(priv, "receive reply tx with bt_kill\n");
+ IWL_DEBUG_COEX(priv, "receive reply tx with bt_kill\n");
}
iwlagn_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index);
if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark) &&
- (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)) {
- if (agg->state == IWL_AGG_OFF)
- iwl_wake_queue(priv, txq_id);
- else
- iwl_wake_queue(priv, txq->swq_id);
- }
+ (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA))
+ iwl_wake_queue(priv, txq);
}
} else {
- BUG_ON(txq_id != txq->swq_id);
- iwlagn_set_tx_status(priv, info, tx_resp, txq_id, false);
+ iwlagn_set_tx_status(priv, info, txb->ctx, tx_resp,
+ txq_id, false);
freed = iwlagn_tx_queue_reclaim(priv, txq_id, index);
iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
if (priv->mac80211_registered &&
- (iwl_queue_space(&txq->q) > txq->q.low_mark))
- iwl_wake_queue(priv, txq_id);
+ iwl_queue_space(&txq->q) > txq->q.low_mark &&
+ status != TX_STATUS_FAIL_PASSIVE_NO_RX)
+ iwl_wake_queue(priv, txq);
}
iwlagn_txq_check_empty(priv, sta_id, tid, txq_id);
/* init calibration handlers */
priv->rx_handlers[CALIBRATION_RES_NOTIFICATION] =
iwlagn_rx_calib_result;
- priv->rx_handlers[CALIBRATION_COMPLETE_NOTIFICATION] =
- iwlagn_rx_calib_complete;
priv->rx_handlers[REPLY_TX] = iwlagn_rx_reply_tx;
+
+ /* set up notification wait support */
+ spin_lock_init(&priv->_agn.notif_wait_lock);
+ INIT_LIST_HEAD(&priv->_agn.notif_waits);
+ init_waitqueue_head(&priv->_agn.notif_waitq);
}
void iwlagn_setup_deferred_work(struct iwl_priv *priv)
{
- /* in agn, the tx power calibration is done in uCode */
- priv->disable_tx_power_cal = 1;
+ /*
+ * nothing need to be done here anymore
+ * still keep for future use if needed
+ */
}
int iwlagn_hw_valid_rtc_data_addr(u32 addr)
struct iwlagn_tx_power_dbm_cmd tx_power_cmd;
u8 tx_ant_cfg_cmd;
+ if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status),
+ "TX Power requested while scanning!\n"))
+ return -EAGAIN;
+
/* half dBm need to multiply */
tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt);
else
tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD;
- return iwl_send_cmd_pdu_async(priv, tx_ant_cfg_cmd,
- sizeof(tx_power_cmd), &tx_power_cmd,
- NULL);
+ return iwl_send_cmd_pdu(priv, tx_ant_cfg_cmd, sizeof(tx_power_cmd),
+ &tx_power_cmd);
}
void iwlagn_temperature(struct iwl_priv *priv)
{
- /* store temperature from statistics (in Celsius) */
- priv->temperature =
- le32_to_cpu(priv->_agn.statistics.general.common.temperature);
+ /* store temperature from correct statistics (in Celsius) */
+ priv->temperature = le32_to_cpu(priv->statistics.common.temperature);
iwl_tt_handler(priv);
}
case INDIRECT_REGULATORY:
offset = iwl_eeprom_query16(priv, EEPROM_LINK_REGULATORY);
break;
+ case INDIRECT_TXP_LIMIT:
+ offset = iwl_eeprom_query16(priv, EEPROM_LINK_TXP_LIMIT);
+ break;
+ case INDIRECT_TXP_LIMIT_SIZE:
+ offset = iwl_eeprom_query16(priv, EEPROM_LINK_TXP_LIMIT_SIZE);
+ break;
case INDIRECT_CALIBRATION:
offset = iwl_eeprom_query16(priv, EEPROM_LINK_CALIBRATION);
break;
struct iwl_mod_params iwlagn_mod_params = {
.amsdu_size_8K = 1,
.restart_fw = 1,
+ .plcp_check = true,
+ .bt_coex_active = true,
+ .no_sleep_autoadjust = true,
+ .power_level = IWL_POWER_INDEX_1,
/* the rest are 0 by default */
};
-void iwlagn_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- unsigned long flags;
- int i;
- spin_lock_irqsave(&rxq->lock, flags);
- INIT_LIST_HEAD(&rxq->rx_free);
- INIT_LIST_HEAD(&rxq->rx_used);
- /* Fill the rx_used queue with _all_ of the Rx buffers */
- for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
- /* In the reset function, these buffers may have been allocated
- * to an SKB, so we need to unmap and free potential storage */
- if (rxq->pool[i].page != NULL) {
- pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- __iwl_free_pages(priv, rxq->pool[i].page);
- rxq->pool[i].page = NULL;
- }
- list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
- }
-
- for (i = 0; i < RX_QUEUE_SIZE; i++)
- rxq->queue[i] = NULL;
-
- /* Set us so that we have processed and used all buffers, but have
- * not restocked the Rx queue with fresh buffers */
- rxq->read = rxq->write = 0;
- rxq->write_actual = 0;
- rxq->free_count = 0;
- spin_unlock_irqrestore(&rxq->lock, flags);
-}
-
int iwlagn_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
{
u32 rb_size;
const u32 rfdnlog = RX_QUEUE_SIZE_LOG; /* 256 RBDs */
u32 rb_timeout = 0; /* FIXME: RX_RB_TIMEOUT for all devices? */
- if (!priv->cfg->base_params->use_isr_legacy)
- rb_timeout = RX_RB_TIMEOUT;
+ rb_timeout = RX_RB_TIMEOUT;
- if (priv->cfg->mod_params->amsdu_size_8K)
+ if (iwlagn_mod_params.amsdu_size_8K)
rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K;
else
rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K;
return 0;
}
+static void iwlagn_set_pwr_vmain(struct iwl_priv *priv)
+{
+/*
+ * (for documentation purposes)
+ * to set power to V_AUX, do:
+
+ if (pci_pme_capable(priv->pci_dev, PCI_D3cold))
+ iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
+ */
+
+ iwl_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
+}
+
int iwlagn_hw_nic_init(struct iwl_priv *priv)
{
unsigned long flags;
struct iwl_rx_queue *rxq = &priv->rxq;
- int ret;
/* nic_init */
spin_lock_irqsave(&priv->lock, flags);
spin_unlock_irqrestore(&priv->lock, flags);
- ret = priv->cfg->ops->lib->apm_ops.set_pwr_src(priv, IWL_PWR_SRC_VMAIN);
+ iwlagn_set_pwr_vmain(priv);
priv->cfg->ops->lib->apm_ops.config(priv);
/* Allocate the RX queue, or reset if it is already allocated */
- if (!rxq->bd) {
- ret = iwl_rx_queue_alloc(priv);
- if (ret) {
- IWL_ERR(priv, "Unable to initialize Rx queue\n");
- return -ENOMEM;
- }
- } else
- iwlagn_rx_queue_reset(priv, rxq);
+ priv->trans.ops->rx_init(priv);
iwlagn_rx_replenish(priv);
spin_unlock_irqrestore(&priv->lock, flags);
/* Allocate or reset and init all Tx and Command queues */
- if (!priv->txq) {
- ret = iwlagn_txq_ctx_alloc(priv);
- if (ret)
- return ret;
- } else
- iwlagn_txq_ctx_reset(priv);
+ if (priv->trans.ops->tx_init(priv))
+ return -ENOMEM;
+
+ if (priv->cfg->base_params->shadow_reg_enable) {
+ /* enable shadow regs in HW */
+ iwl_set_bit(priv, CSR_MAC_SHADOW_REG_CTRL,
+ 0x800FFFFF);
+ }
set_bit(STATUS_INIT, &priv->status);
BUG_ON(rxb->page);
rxb->page = page;
/* Get physical address of the RB */
- rxb->page_dma = pci_map_page(priv->pci_dev, page, 0,
+ rxb->page_dma = dma_map_page(priv->bus.dev, page, 0,
PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
+ DMA_FROM_DEVICE);
/* dma address must be no more than 36 bits */
BUG_ON(rxb->page_dma & ~DMA_BIT_MASK(36));
/* and also 256 byte aligned! */
list_add_tail(&rxb->list, &rxq->rx_free);
rxq->free_count++;
- priv->alloc_rxb_page++;
spin_unlock_irqrestore(&rxq->lock, flags);
}
iwlagn_rx_queue_restock(priv);
}
-/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
- * If an SKB has been detached, the POOL needs to have its SKB set to NULL
- * This free routine walks the list of POOL entries and if SKB is set to
- * non NULL it is unmapped and freed
- */
-void iwlagn_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- int i;
- for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
- if (rxq->pool[i].page != NULL) {
- pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- __iwl_free_pages(priv, rxq->pool[i].page);
- rxq->pool[i].page = NULL;
- }
- }
-
- dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
- rxq->bd_dma);
- dma_free_coherent(&priv->pci_dev->dev, sizeof(struct iwl_rb_status),
- rxq->rb_stts, rxq->rb_stts_dma);
- rxq->bd = NULL;
- rxq->rb_stts = NULL;
-}
-
int iwlagn_rxq_stop(struct iwl_priv *priv)
{
return -1;
}
-/* Calc max signal level (dBm) among 3 possible receivers */
-static inline int iwlagn_calc_rssi(struct iwl_priv *priv,
- struct iwl_rx_phy_res *rx_resp)
-{
- return priv->cfg->ops->utils->calc_rssi(priv, rx_resp);
-}
-
-static u32 iwlagn_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in)
-{
- u32 decrypt_out = 0;
-
- if ((decrypt_in & RX_RES_STATUS_STATION_FOUND) ==
- RX_RES_STATUS_STATION_FOUND)
- decrypt_out |= (RX_RES_STATUS_STATION_FOUND |
- RX_RES_STATUS_NO_STATION_INFO_MISMATCH);
-
- decrypt_out |= (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK);
-
- /* packet was not encrypted */
- if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
- RX_RES_STATUS_SEC_TYPE_NONE)
- return decrypt_out;
-
- /* packet was encrypted with unknown alg */
- if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
- RX_RES_STATUS_SEC_TYPE_ERR)
- return decrypt_out;
-
- /* decryption was not done in HW */
- if ((decrypt_in & RX_MPDU_RES_STATUS_DEC_DONE_MSK) !=
- RX_MPDU_RES_STATUS_DEC_DONE_MSK)
- return decrypt_out;
-
- switch (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) {
-
- case RX_RES_STATUS_SEC_TYPE_CCMP:
- /* alg is CCM: check MIC only */
- if (!(decrypt_in & RX_MPDU_RES_STATUS_MIC_OK))
- /* Bad MIC */
- decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;
- else
- decrypt_out |= RX_RES_STATUS_DECRYPT_OK;
-
- break;
-
- case RX_RES_STATUS_SEC_TYPE_TKIP:
- if (!(decrypt_in & RX_MPDU_RES_STATUS_TTAK_OK)) {
- /* Bad TTAK */
- decrypt_out |= RX_RES_STATUS_BAD_KEY_TTAK;
- break;
- }
- /* fall through if TTAK OK */
- default:
- if (!(decrypt_in & RX_MPDU_RES_STATUS_ICV_OK))
- decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;
- else
- decrypt_out |= RX_RES_STATUS_DECRYPT_OK;
- break;
- }
-
- IWL_DEBUG_RX(priv, "decrypt_in:0x%x decrypt_out = 0x%x\n",
- decrypt_in, decrypt_out);
-
- return decrypt_out;
-}
-
-static void iwlagn_pass_packet_to_mac80211(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- u16 len,
- u32 ampdu_status,
- struct iwl_rx_mem_buffer *rxb,
- struct ieee80211_rx_status *stats)
-{
- struct sk_buff *skb;
- __le16 fc = hdr->frame_control;
-
- /* We only process data packets if the interface is open */
- if (unlikely(!priv->is_open)) {
- IWL_DEBUG_DROP_LIMIT(priv,
- "Dropping packet while interface is not open.\n");
- return;
- }
-
- /* In case of HW accelerated crypto and bad decryption, drop */
- if (!priv->cfg->mod_params->sw_crypto &&
- iwl_set_decrypted_flag(priv, hdr, ampdu_status, stats))
- return;
-
- skb = dev_alloc_skb(128);
- if (!skb) {
- IWL_ERR(priv, "dev_alloc_skb failed\n");
- return;
- }
-
- skb_add_rx_frag(skb, 0, rxb->page, (void *)hdr - rxb_addr(rxb), len);
-
- iwl_update_stats(priv, false, fc, len);
- memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
-
- ieee80211_rx(priv->hw, skb);
- priv->alloc_rxb_page--;
- rxb->page = NULL;
-}
-
-/* Called for REPLY_RX (legacy ABG frames), or
- * REPLY_RX_MPDU_CMD (HT high-throughput N frames). */
-void iwlagn_rx_reply_rx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct ieee80211_hdr *header;
- struct ieee80211_rx_status rx_status;
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_rx_phy_res *phy_res;
- __le32 rx_pkt_status;
- struct iwl_rx_mpdu_res_start *amsdu;
- u32 len;
- u32 ampdu_status;
- u32 rate_n_flags;
-
- /**
- * REPLY_RX and REPLY_RX_MPDU_CMD are handled differently.
- * REPLY_RX: physical layer info is in this buffer
- * REPLY_RX_MPDU_CMD: physical layer info was sent in separate
- * command and cached in priv->last_phy_res
- *
- * Here we set up local variables depending on which command is
- * received.
- */
- if (pkt->hdr.cmd == REPLY_RX) {
- phy_res = (struct iwl_rx_phy_res *)pkt->u.raw;
- header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*phy_res)
- + phy_res->cfg_phy_cnt);
-
- len = le16_to_cpu(phy_res->byte_count);
- rx_pkt_status = *(__le32 *)(pkt->u.raw + sizeof(*phy_res) +
- phy_res->cfg_phy_cnt + len);
- ampdu_status = le32_to_cpu(rx_pkt_status);
- } else {
- if (!priv->_agn.last_phy_res_valid) {
- IWL_ERR(priv, "MPDU frame without cached PHY data\n");
- return;
- }
- phy_res = &priv->_agn.last_phy_res;
- amsdu = (struct iwl_rx_mpdu_res_start *)pkt->u.raw;
- header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*amsdu));
- len = le16_to_cpu(amsdu->byte_count);
- rx_pkt_status = *(__le32 *)(pkt->u.raw + sizeof(*amsdu) + len);
- ampdu_status = iwlagn_translate_rx_status(priv,
- le32_to_cpu(rx_pkt_status));
- }
-
- if ((unlikely(phy_res->cfg_phy_cnt > 20))) {
- IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n",
- phy_res->cfg_phy_cnt);
- return;
- }
-
- if (!(rx_pkt_status & RX_RES_STATUS_NO_CRC32_ERROR) ||
- !(rx_pkt_status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
- IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n",
- le32_to_cpu(rx_pkt_status));
- return;
- }
-
- /* This will be used in several places later */
- rate_n_flags = le32_to_cpu(phy_res->rate_n_flags);
-
- /* rx_status carries information about the packet to mac80211 */
- rx_status.mactime = le64_to_cpu(phy_res->timestamp);
- rx_status.freq =
- ieee80211_channel_to_frequency(le16_to_cpu(phy_res->channel));
- rx_status.band = (phy_res->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
- IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
- rx_status.rate_idx =
- iwlagn_hwrate_to_mac80211_idx(rate_n_flags, rx_status.band);
- rx_status.flag = 0;
-
- /* TSF isn't reliable. In order to allow smooth user experience,
- * this W/A doesn't propagate it to the mac80211 */
- /*rx_status.flag |= RX_FLAG_TSFT;*/
-
- priv->ucode_beacon_time = le32_to_cpu(phy_res->beacon_time_stamp);
-
- /* Find max signal strength (dBm) among 3 antenna/receiver chains */
- rx_status.signal = iwlagn_calc_rssi(priv, phy_res);
-
- iwl_dbg_log_rx_data_frame(priv, len, header);
- IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, TSF %llu\n",
- rx_status.signal, (unsigned long long)rx_status.mactime);
-
- /*
- * "antenna number"
- *
- * It seems that the antenna field in the phy flags value
- * is actually a bit field. This is undefined by radiotap,
- * it wants an actual antenna number but I always get "7"
- * for most legacy frames I receive indicating that the
- * same frame was received on all three RX chains.
- *
- * I think this field should be removed in favor of a
- * new 802.11n radiotap field "RX chains" that is defined
- * as a bitmask.
- */
- rx_status.antenna =
- (le16_to_cpu(phy_res->phy_flags) & RX_RES_PHY_FLAGS_ANTENNA_MSK)
- >> RX_RES_PHY_FLAGS_ANTENNA_POS;
-
- /* set the preamble flag if appropriate */
- if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
- rx_status.flag |= RX_FLAG_SHORTPRE;
-
- /* Set up the HT phy flags */
- if (rate_n_flags & RATE_MCS_HT_MSK)
- rx_status.flag |= RX_FLAG_HT;
- if (rate_n_flags & RATE_MCS_HT40_MSK)
- rx_status.flag |= RX_FLAG_40MHZ;
- if (rate_n_flags & RATE_MCS_SGI_MSK)
- rx_status.flag |= RX_FLAG_SHORT_GI;
-
- iwlagn_pass_packet_to_mac80211(priv, header, len, ampdu_status,
- rxb, &rx_status);
-}
-
-/* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD).
- * This will be used later in iwl_rx_reply_rx() for REPLY_RX_MPDU_CMD. */
-void iwlagn_rx_reply_rx_phy(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- priv->_agn.last_phy_res_valid = true;
- memcpy(&priv->_agn.last_phy_res, pkt->u.raw,
- sizeof(struct iwl_rx_phy_res));
-}
-
static int iwl_get_single_channel_for_scan(struct iwl_priv *priv,
struct ieee80211_vif *vif,
enum ieee80211_band band,
return added;
}
+static int iwl_fill_offch_tx(struct iwl_priv *priv, void *data, size_t maxlen)
+{
+ struct sk_buff *skb = priv->_agn.offchan_tx_skb;
+
+ if (skb->len < maxlen)
+ maxlen = skb->len;
+
+ memcpy(data, skb->data, maxlen);
+
+ return maxlen;
+}
+
int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
{
struct iwl_host_cmd cmd = {
.id = REPLY_SCAN_CMD,
- .len = sizeof(struct iwl_scan_cmd),
- .flags = CMD_SIZE_HUGE,
+ .len = { sizeof(struct iwl_scan_cmd), },
};
struct iwl_scan_cmd *scan;
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
- if (iwl_is_any_associated(priv)) {
+ if (priv->scan_type != IWL_SCAN_OFFCH_TX &&
+ iwl_is_any_associated(priv)) {
u16 interval = 0;
u32 extra;
u32 suspend_time = 100;
u32 scan_suspend_time = 100;
- unsigned long flags;
IWL_DEBUG_INFO(priv, "Scanning while associated...\n");
- spin_lock_irqsave(&priv->lock, flags);
- if (priv->is_internal_short_scan)
+ switch (priv->scan_type) {
+ case IWL_SCAN_OFFCH_TX:
+ WARN_ON(1);
+ break;
+ case IWL_SCAN_RADIO_RESET:
interval = 0;
- else
+ break;
+ case IWL_SCAN_NORMAL:
interval = vif->bss_conf.beacon_int;
- spin_unlock_irqrestore(&priv->lock, flags);
+ break;
+ }
scan->suspend_time = 0;
scan->max_out_time = cpu_to_le32(200 * 1024);
scan->suspend_time = cpu_to_le32(scan_suspend_time);
IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n",
scan_suspend_time, interval);
+ } else if (priv->scan_type == IWL_SCAN_OFFCH_TX) {
+ scan->suspend_time = 0;
+ scan->max_out_time =
+ cpu_to_le32(1024 * priv->_agn.offchan_tx_timeout);
}
- if (priv->is_internal_short_scan) {
+ switch (priv->scan_type) {
+ case IWL_SCAN_RADIO_RESET:
IWL_DEBUG_SCAN(priv, "Start internal passive scan.\n");
- } else if (priv->scan_request->n_ssids) {
- int i, p = 0;
- IWL_DEBUG_SCAN(priv, "Kicking off active scan\n");
- for (i = 0; i < priv->scan_request->n_ssids; i++) {
- /* always does wildcard anyway */
- if (!priv->scan_request->ssids[i].ssid_len)
- continue;
- scan->direct_scan[p].id = WLAN_EID_SSID;
- scan->direct_scan[p].len =
- priv->scan_request->ssids[i].ssid_len;
- memcpy(scan->direct_scan[p].ssid,
- priv->scan_request->ssids[i].ssid,
- priv->scan_request->ssids[i].ssid_len);
- n_probes++;
- p++;
- }
- is_active = true;
- } else
- IWL_DEBUG_SCAN(priv, "Start passive scan.\n");
+ break;
+ case IWL_SCAN_NORMAL:
+ if (priv->scan_request->n_ssids) {
+ int i, p = 0;
+ IWL_DEBUG_SCAN(priv, "Kicking off active scan\n");
+ for (i = 0; i < priv->scan_request->n_ssids; i++) {
+ /* always does wildcard anyway */
+ if (!priv->scan_request->ssids[i].ssid_len)
+ continue;
+ scan->direct_scan[p].id = WLAN_EID_SSID;
+ scan->direct_scan[p].len =
+ priv->scan_request->ssids[i].ssid_len;
+ memcpy(scan->direct_scan[p].ssid,
+ priv->scan_request->ssids[i].ssid,
+ priv->scan_request->ssids[i].ssid_len);
+ n_probes++;
+ p++;
+ }
+ is_active = true;
+ } else
+ IWL_DEBUG_SCAN(priv, "Start passive scan.\n");
+ break;
+ case IWL_SCAN_OFFCH_TX:
+ IWL_DEBUG_SCAN(priv, "Start offchannel TX scan.\n");
+ break;
+ }
scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
scan->tx_cmd.sta_id = ctx->bcast_sta_id;
if (priv->cfg->bt_params &&
priv->cfg->bt_params->advanced_bt_coexist)
scan->tx_cmd.tx_flags |= TX_CMD_FLG_IGNORE_BT;
- scan->good_CRC_th = IWL_GOOD_CRC_TH_DISABLED;
break;
case IEEE80211_BAND_5GHZ:
rate = IWL_RATE_6M_PLCP;
- /*
- * If active scanning is requested but a certain channel is
- * marked passive, we can do active scanning if we detect
- * transmissions.
- *
- * There is an issue with some firmware versions that triggers
- * a sysassert on a "good CRC threshold" of zero (== disabled),
- * on a radar channel even though this means that we should NOT
- * send probes.
- *
- * The "good CRC threshold" is the number of frames that we
- * need to receive during our dwell time on a channel before
- * sending out probes -- setting this to a huge value will
- * mean we never reach it, but at the same time work around
- * the aforementioned issue. Thus use IWL_GOOD_CRC_TH_NEVER
- * here instead of IWL_GOOD_CRC_TH_DISABLED.
- */
- scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT :
- IWL_GOOD_CRC_TH_NEVER;
break;
default:
IWL_WARN(priv, "Invalid scan band\n");
return -EIO;
}
+ /*
+ * If active scanning is requested but a certain channel is
+ * marked passive, we can do active scanning if we detect
+ * transmissions.
+ *
+ * There is an issue with some firmware versions that triggers
+ * a sysassert on a "good CRC threshold" of zero (== disabled),
+ * on a radar channel even though this means that we should NOT
+ * send probes.
+ *
+ * The "good CRC threshold" is the number of frames that we
+ * need to receive during our dwell time on a channel before
+ * sending out probes -- setting this to a huge value will
+ * mean we never reach it, but at the same time work around
+ * the aforementioned issue. Thus use IWL_GOOD_CRC_TH_NEVER
+ * here instead of IWL_GOOD_CRC_TH_DISABLED.
+ *
+ * This was fixed in later versions along with some other
+ * scan changes, and the threshold behaves as a flag in those
+ * versions.
+ */
+ if (priv->new_scan_threshold_behaviour)
+ scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT :
+ IWL_GOOD_CRC_TH_DISABLED;
+ else
+ scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT :
+ IWL_GOOD_CRC_TH_NEVER;
+
band = priv->scan_band;
if (priv->cfg->scan_rx_antennas[band])
rx_ant = priv->cfg->scan_rx_antennas[band];
- if (priv->cfg->scan_tx_antennas[band])
- scan_tx_antennas = priv->cfg->scan_tx_antennas[band];
-
- if (priv->cfg->bt_params &&
- priv->cfg->bt_params->advanced_bt_coexist &&
- priv->bt_full_concurrent) {
- /* operated as 1x1 in full concurrency mode */
- scan_tx_antennas = first_antenna(
- priv->cfg->scan_tx_antennas[band]);
+ if (band == IEEE80211_BAND_2GHZ &&
+ priv->cfg->bt_params &&
+ priv->cfg->bt_params->advanced_bt_coexist) {
+ /* transmit 2.4 GHz probes only on first antenna */
+ scan_tx_antennas = first_antenna(scan_tx_antennas);
}
priv->scan_tx_ant[band] = iwl_toggle_tx_ant(priv, priv->scan_tx_ant[band],
rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_SEL_POS;
rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS;
scan->rx_chain = cpu_to_le16(rx_chain);
- if (!priv->is_internal_short_scan) {
+ switch (priv->scan_type) {
+ case IWL_SCAN_NORMAL:
cmd_len = iwl_fill_probe_req(priv,
(struct ieee80211_mgmt *)scan->data,
vif->addr,
priv->scan_request->ie,
priv->scan_request->ie_len,
IWL_MAX_SCAN_SIZE - sizeof(*scan));
- } else {
+ break;
+ case IWL_SCAN_RADIO_RESET:
/* use bcast addr, will not be transmitted but must be valid */
cmd_len = iwl_fill_probe_req(priv,
(struct ieee80211_mgmt *)scan->data,
iwl_bcast_addr, NULL, 0,
IWL_MAX_SCAN_SIZE - sizeof(*scan));
-
+ break;
+ case IWL_SCAN_OFFCH_TX:
+ cmd_len = iwl_fill_offch_tx(priv, scan->data,
+ IWL_MAX_SCAN_SIZE
+ - sizeof(*scan)
+ - sizeof(struct iwl_scan_channel));
+ scan->scan_flags |= IWL_SCAN_FLAGS_ACTION_FRAME_TX;
+ break;
+ default:
+ BUG();
}
scan->tx_cmd.len = cpu_to_le16(cmd_len);
scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK |
RXON_FILTER_BCON_AWARE_MSK);
- if (priv->is_internal_short_scan) {
+ switch (priv->scan_type) {
+ case IWL_SCAN_RADIO_RESET:
scan->channel_count =
iwl_get_single_channel_for_scan(priv, vif, band,
- (void *)&scan->data[le16_to_cpu(
- scan->tx_cmd.len)]);
- } else {
+ (void *)&scan->data[cmd_len]);
+ break;
+ case IWL_SCAN_NORMAL:
scan->channel_count =
iwl_get_channels_for_scan(priv, vif, band,
is_active, n_probes,
- (void *)&scan->data[le16_to_cpu(
- scan->tx_cmd.len)]);
+ (void *)&scan->data[cmd_len]);
+ break;
+ case IWL_SCAN_OFFCH_TX: {
+ struct iwl_scan_channel *scan_ch;
+
+ scan->channel_count = 1;
+
+ scan_ch = (void *)&scan->data[cmd_len];
+ scan_ch->type = SCAN_CHANNEL_TYPE_ACTIVE;
+ scan_ch->channel =
+ cpu_to_le16(priv->_agn.offchan_tx_chan->hw_value);
+ scan_ch->active_dwell =
+ cpu_to_le16(priv->_agn.offchan_tx_timeout);
+ scan_ch->passive_dwell = 0;
+
+ /* Set txpower levels to defaults */
+ scan_ch->dsp_atten = 110;
+
+ /* NOTE: if we were doing 6Mb OFDM for scans we'd use
+ * power level:
+ * scan_ch->tx_gain = ((1 << 5) | (2 << 3)) | 3;
+ */
+ if (priv->_agn.offchan_tx_chan->band == IEEE80211_BAND_5GHZ)
+ scan_ch->tx_gain = ((1 << 5) | (3 << 3)) | 3;
+ else
+ scan_ch->tx_gain = ((1 << 5) | (5 << 3));
+ }
+ break;
}
+
if (scan->channel_count == 0) {
IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count);
return -EIO;
}
- cmd.len += le16_to_cpu(scan->tx_cmd.len) +
+ cmd.len[0] += le16_to_cpu(scan->tx_cmd.len) +
scan->channel_count * sizeof(struct iwl_scan_channel);
- cmd.data = scan;
- scan->len = cpu_to_le16(cmd.len);
-
- if (priv->cfg->ops->hcmd->set_pan_params) {
- ret = priv->cfg->ops->hcmd->set_pan_params(priv);
- if (ret)
- return ret;
- }
+ cmd.data[0] = scan;
+ cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
+ scan->len = cpu_to_le16(cmd.len[0]);
+ /* set scan bit here for PAN params */
set_bit(STATUS_SCAN_HW, &priv->status);
+
+ ret = iwlagn_set_pan_params(priv);
+ if (ret)
+ return ret;
+
ret = iwl_send_cmd_sync(priv, &cmd);
if (ret) {
clear_bit(STATUS_SCAN_HW, &priv->status);
- if (priv->cfg->ops->hcmd->set_pan_params)
- priv->cfg->ops->hcmd->set_pan_params(priv);
+ iwlagn_set_pan_params(priv);
}
return ret;
struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
if (add)
- return iwl_add_bssid_station(priv, vif_priv->ctx,
- vif->bss_conf.bssid, true,
- &vif_priv->ibss_bssid_sta_id);
+ return iwlagn_add_bssid_station(priv, vif_priv->ctx,
+ vif->bss_conf.bssid,
+ &vif_priv->ibss_bssid_sta_id);
return iwl_remove_station(priv, vif_priv->ibss_bssid_sta_id,
vif->bss_conf.bssid);
}
struct iwl_txfifo_flush_cmd flush_cmd;
struct iwl_host_cmd cmd = {
.id = REPLY_TXFIFO_FLUSH,
- .len = sizeof(struct iwl_txfifo_flush_cmd),
+ .len = { sizeof(struct iwl_txfifo_flush_cmd), },
.flags = CMD_SYNC,
- .data = &flush_cmd,
+ .data = { &flush_cmd, },
};
might_sleep();
memset(&flush_cmd, 0, sizeof(flush_cmd));
- flush_cmd.fifo_control = IWL_TX_FIFO_VO_MSK | IWL_TX_FIFO_VI_MSK |
- IWL_TX_FIFO_BE_MSK | IWL_TX_FIFO_BK_MSK;
- if (priv->cfg->sku & IWL_SKU_N)
+ if (flush_control & BIT(IWL_RXON_CTX_BSS))
+ flush_cmd.fifo_control = IWL_SCD_VO_MSK | IWL_SCD_VI_MSK |
+ IWL_SCD_BE_MSK | IWL_SCD_BK_MSK |
+ IWL_SCD_MGMT_MSK;
+ if ((flush_control & BIT(IWL_RXON_CTX_PAN)) &&
+ (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS)))
+ flush_cmd.fifo_control |= IWL_PAN_SCD_VO_MSK |
+ IWL_PAN_SCD_VI_MSK | IWL_PAN_SCD_BE_MSK |
+ IWL_PAN_SCD_BK_MSK | IWL_PAN_SCD_MGMT_MSK |
+ IWL_PAN_SCD_MULTICAST_MSK;
+
+ if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
flush_cmd.fifo_control |= IWL_AGG_TX_QUEUE_MSK;
IWL_DEBUG_INFO(priv, "fifo queue control: 0X%x\n",
{
mutex_lock(&priv->mutex);
ieee80211_stop_queues(priv->hw);
- if (priv->cfg->ops->lib->txfifo_flush(priv, IWL_DROP_ALL)) {
+ if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) {
IWL_ERR(priv, "flush request fail\n");
goto done;
}
cpu_to_le32(0xc0004000),
cpu_to_le32(0x00004000),
cpu_to_le32(0xf0005000),
- cpu_to_le32(0xf0004000),
+ cpu_to_le32(0xf0005000),
};
static const __le32 iwlagn_concurrent_lookup[12] = {
void iwlagn_send_advance_bt_config(struct iwl_priv *priv)
{
- struct iwlagn_bt_cmd bt_cmd = {
+ struct iwl_basic_bt_cmd basic = {
.max_kill = IWLAGN_BT_MAX_KILL_DEFAULT,
.bt3_timer_t7_value = IWLAGN_BT3_T7_DEFAULT,
.bt3_prio_sample_time = IWLAGN_BT3_PRIO_SAMPLE_DEFAULT,
.bt3_timer_t2_value = IWLAGN_BT3_T2_DEFAULT,
};
+ struct iwl6000_bt_cmd bt_cmd_6000;
+ struct iwl2000_bt_cmd bt_cmd_2000;
+ int ret;
BUILD_BUG_ON(sizeof(iwlagn_def_3w_lookup) !=
- sizeof(bt_cmd.bt3_lookup_table));
+ sizeof(basic.bt3_lookup_table));
+
+ if (priv->cfg->bt_params) {
+ if (priv->cfg->bt_params->bt_session_2) {
+ bt_cmd_2000.prio_boost = cpu_to_le32(
+ priv->cfg->bt_params->bt_prio_boost);
+ bt_cmd_2000.tx_prio_boost = 0;
+ bt_cmd_2000.rx_prio_boost = 0;
+ } else {
+ bt_cmd_6000.prio_boost =
+ priv->cfg->bt_params->bt_prio_boost;
+ bt_cmd_6000.tx_prio_boost = 0;
+ bt_cmd_6000.rx_prio_boost = 0;
+ }
+ } else {
+ IWL_ERR(priv, "failed to construct BT Coex Config\n");
+ return;
+ }
- if (priv->cfg->bt_params)
- bt_cmd.prio_boost = priv->cfg->bt_params->bt_prio_boost;
- else
- bt_cmd.prio_boost = 0;
- bt_cmd.kill_ack_mask = priv->kill_ack_mask;
- bt_cmd.kill_cts_mask = priv->kill_cts_mask;
- bt_cmd.valid = priv->bt_valid;
- bt_cmd.tx_prio_boost = 0;
- bt_cmd.rx_prio_boost = 0;
+ basic.kill_ack_mask = priv->kill_ack_mask;
+ basic.kill_cts_mask = priv->kill_cts_mask;
+ basic.valid = priv->bt_valid;
/*
* Configure BT coex mode to "no coexistence" when the
* (might be in monitor mode), or the interface is in
* IBSS mode (no proper uCode support for coex then).
*/
- if (!bt_coex_active || priv->iw_mode == NL80211_IFTYPE_ADHOC) {
- bt_cmd.flags = 0;
+ if (!iwlagn_mod_params.bt_coex_active ||
+ priv->iw_mode == NL80211_IFTYPE_ADHOC) {
+ basic.flags = IWLAGN_BT_FLAG_COEX_MODE_DISABLED;
} else {
- bt_cmd.flags = IWLAGN_BT_FLAG_COEX_MODE_3W <<
+ basic.flags = IWLAGN_BT_FLAG_COEX_MODE_3W <<
IWLAGN_BT_FLAG_COEX_MODE_SHIFT;
+ if (priv->cfg->bt_params &&
+ priv->cfg->bt_params->bt_sco_disable)
+ basic.flags |= IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE;
+
if (priv->bt_ch_announce)
- bt_cmd.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION;
- IWL_DEBUG_INFO(priv, "BT coex flag: 0X%x\n", bt_cmd.flags);
+ basic.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION;
+ IWL_DEBUG_COEX(priv, "BT coex flag: 0X%x\n", basic.flags);
}
+ priv->bt_enable_flag = basic.flags;
if (priv->bt_full_concurrent)
- memcpy(bt_cmd.bt3_lookup_table, iwlagn_concurrent_lookup,
+ memcpy(basic.bt3_lookup_table, iwlagn_concurrent_lookup,
sizeof(iwlagn_concurrent_lookup));
else
- memcpy(bt_cmd.bt3_lookup_table, iwlagn_def_3w_lookup,
+ memcpy(basic.bt3_lookup_table, iwlagn_def_3w_lookup,
sizeof(iwlagn_def_3w_lookup));
- IWL_DEBUG_INFO(priv, "BT coex %s in %s mode\n",
- bt_cmd.flags ? "active" : "disabled",
+ IWL_DEBUG_COEX(priv, "BT coex %s in %s mode\n",
+ basic.flags ? "active" : "disabled",
priv->bt_full_concurrent ?
"full concurrency" : "3-wire");
- if (iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG, sizeof(bt_cmd), &bt_cmd))
+ if (priv->cfg->bt_params->bt_session_2) {
+ memcpy(&bt_cmd_2000.basic, &basic,
+ sizeof(basic));
+ ret = iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
+ sizeof(bt_cmd_2000), &bt_cmd_2000);
+ } else {
+ memcpy(&bt_cmd_6000.basic, &basic,
+ sizeof(basic));
+ ret = iwl_send_cmd_pdu(priv, REPLY_BT_CONFIG,
+ sizeof(bt_cmd_6000), &bt_cmd_6000);
+ }
+ if (ret)
IWL_ERR(priv, "failed to send BT Coex Config\n");
- /*
- * When we are doing a restart, need to also reconfigure BT
- * SCO to the device. If not doing a restart, bt_sco_active
- * will always be false, so there's no need to have an extra
- * variable to check for it.
- */
- if (priv->bt_sco_active) {
- struct iwlagn_bt_sco_cmd sco_cmd = { .flags = 0 };
-
- if (priv->bt_sco_active)
- sco_cmd.flags |= IWLAGN_BT_SCO_ACTIVE;
- if (iwl_send_cmd_pdu(priv, REPLY_BT_COEX_SCO,
- sizeof(sco_cmd), &sco_cmd))
- IWL_ERR(priv, "failed to send BT SCO command\n");
- }
}
static void iwlagn_bt_traffic_change_work(struct work_struct *work)
struct iwl_rxon_context *ctx;
int smps_request = -1;
- IWL_DEBUG_INFO(priv, "BT traffic load changes: %d\n",
+ if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) {
+ /* bt coex disabled */
+ return;
+ }
+
+ /*
+ * Note: bt_traffic_load can be overridden by scan complete and
+ * coex profile notifications. Ignore that since only bad consequence
+ * can be not matching debug print with actual state.
+ */
+ IWL_DEBUG_COEX(priv, "BT traffic load changes: %d\n",
priv->bt_traffic_load);
switch (priv->bt_traffic_load) {
case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
- smps_request = IEEE80211_SMPS_AUTOMATIC;
+ if (priv->bt_status)
+ smps_request = IEEE80211_SMPS_DYNAMIC;
+ else
+ smps_request = IEEE80211_SMPS_AUTOMATIC;
break;
case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
smps_request = IEEE80211_SMPS_DYNAMIC;
mutex_lock(&priv->mutex);
+ /*
+ * We can not send command to firmware while scanning. When the scan
+ * complete we will schedule this work again. We do check with mutex
+ * locked to prevent new scan request to arrive. We do not check
+ * STATUS_SCANNING to avoid race when queue_work two times from
+ * different notifications, but quit and not perform any work at all.
+ */
+ if (test_bit(STATUS_SCAN_HW, &priv->status))
+ goto out;
+
if (priv->cfg->ops->lib->update_chain_flags)
priv->cfg->ops->lib->update_chain_flags(priv);
if (smps_request != -1) {
+ priv->current_ht_config.smps = smps_request;
for_each_context(priv, ctx) {
if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION)
ieee80211_request_smps(ctx->vif, smps_request);
}
}
-
+out:
mutex_unlock(&priv->mutex);
}
static void iwlagn_print_uartmsg(struct iwl_priv *priv,
struct iwl_bt_uart_msg *uart_msg)
{
- IWL_DEBUG_NOTIF(priv, "Message Type = 0x%X, SSN = 0x%X, "
+ IWL_DEBUG_COEX(priv, "Message Type = 0x%X, SSN = 0x%X, "
"Update Req = 0x%X",
(BT_UART_MSG_FRAME1MSGTYPE_MSK & uart_msg->frame1) >>
BT_UART_MSG_FRAME1MSGTYPE_POS,
(BT_UART_MSG_FRAME1UPDATEREQ_MSK & uart_msg->frame1) >>
BT_UART_MSG_FRAME1UPDATEREQ_POS);
- IWL_DEBUG_NOTIF(priv, "Open connections = 0x%X, Traffic load = 0x%X, "
+ IWL_DEBUG_COEX(priv, "Open connections = 0x%X, Traffic load = 0x%X, "
"Chl_SeqN = 0x%X, In band = 0x%X",
(BT_UART_MSG_FRAME2OPENCONNECTIONS_MSK & uart_msg->frame2) >>
BT_UART_MSG_FRAME2OPENCONNECTIONS_POS,
(BT_UART_MSG_FRAME2INBAND_MSK & uart_msg->frame2) >>
BT_UART_MSG_FRAME2INBAND_POS);
- IWL_DEBUG_NOTIF(priv, "SCO/eSCO = 0x%X, Sniff = 0x%X, A2DP = 0x%X, "
+ IWL_DEBUG_COEX(priv, "SCO/eSCO = 0x%X, Sniff = 0x%X, A2DP = 0x%X, "
"ACL = 0x%X, Master = 0x%X, OBEX = 0x%X",
(BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >>
BT_UART_MSG_FRAME3SCOESCO_POS,
(BT_UART_MSG_FRAME3OBEX_MSK & uart_msg->frame3) >>
BT_UART_MSG_FRAME3OBEX_POS);
- IWL_DEBUG_NOTIF(priv, "Idle duration = 0x%X",
+ IWL_DEBUG_COEX(priv, "Idle duration = 0x%X",
(BT_UART_MSG_FRAME4IDLEDURATION_MSK & uart_msg->frame4) >>
BT_UART_MSG_FRAME4IDLEDURATION_POS);
- IWL_DEBUG_NOTIF(priv, "Tx Activity = 0x%X, Rx Activity = 0x%X, "
+ IWL_DEBUG_COEX(priv, "Tx Activity = 0x%X, Rx Activity = 0x%X, "
"eSCO Retransmissions = 0x%X",
(BT_UART_MSG_FRAME5TXACTIVITY_MSK & uart_msg->frame5) >>
BT_UART_MSG_FRAME5TXACTIVITY_POS,
(BT_UART_MSG_FRAME5ESCORETRANSMIT_MSK & uart_msg->frame5) >>
BT_UART_MSG_FRAME5ESCORETRANSMIT_POS);
- IWL_DEBUG_NOTIF(priv, "Sniff Interval = 0x%X, Discoverable = 0x%X",
+ IWL_DEBUG_COEX(priv, "Sniff Interval = 0x%X, Discoverable = 0x%X",
(BT_UART_MSG_FRAME6SNIFFINTERVAL_MSK & uart_msg->frame6) >>
BT_UART_MSG_FRAME6SNIFFINTERVAL_POS,
(BT_UART_MSG_FRAME6DISCOVERABLE_MSK & uart_msg->frame6) >>
BT_UART_MSG_FRAME6DISCOVERABLE_POS);
- IWL_DEBUG_NOTIF(priv, "Sniff Activity = 0x%X, Inquiry/Page SR Mode = "
- "0x%X, Connectable = 0x%X",
+ IWL_DEBUG_COEX(priv, "Sniff Activity = 0x%X, Page = "
+ "0x%X, Inquiry = 0x%X, Connectable = 0x%X",
(BT_UART_MSG_FRAME7SNIFFACTIVITY_MSK & uart_msg->frame7) >>
BT_UART_MSG_FRAME7SNIFFACTIVITY_POS,
- (BT_UART_MSG_FRAME7INQUIRYPAGESRMODE_MSK & uart_msg->frame7) >>
- BT_UART_MSG_FRAME7INQUIRYPAGESRMODE_POS,
+ (BT_UART_MSG_FRAME7PAGE_MSK & uart_msg->frame7) >>
+ BT_UART_MSG_FRAME7PAGE_POS,
+ (BT_UART_MSG_FRAME7INQUIRY_MSK & uart_msg->frame7) >>
+ BT_UART_MSG_FRAME7INQUIRY_POS,
(BT_UART_MSG_FRAME7CONNECTABLE_MSK & uart_msg->frame7) >>
BT_UART_MSG_FRAME7CONNECTABLE_POS);
}
-static void iwlagn_set_kill_ack_msk(struct iwl_priv *priv,
- struct iwl_bt_uart_msg *uart_msg)
+static void iwlagn_set_kill_msk(struct iwl_priv *priv,
+ struct iwl_bt_uart_msg *uart_msg)
{
- u8 kill_ack_msk;
- __le32 bt_kill_ack_msg[2] = {
- cpu_to_le32(0xFFFFFFF), cpu_to_le32(0xFFFFFC00) };
-
- kill_ack_msk = (((BT_UART_MSG_FRAME3A2DP_MSK |
- BT_UART_MSG_FRAME3SNIFF_MSK |
- BT_UART_MSG_FRAME3SCOESCO_MSK) &
- uart_msg->frame3) == 0) ? 1 : 0;
- if (priv->kill_ack_mask != bt_kill_ack_msg[kill_ack_msk]) {
+ u8 kill_msk;
+ static const __le32 bt_kill_ack_msg[2] = {
+ IWLAGN_BT_KILL_ACK_MASK_DEFAULT,
+ IWLAGN_BT_KILL_ACK_CTS_MASK_SCO };
+ static const __le32 bt_kill_cts_msg[2] = {
+ IWLAGN_BT_KILL_CTS_MASK_DEFAULT,
+ IWLAGN_BT_KILL_ACK_CTS_MASK_SCO };
+
+ kill_msk = (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3)
+ ? 1 : 0;
+ if (priv->kill_ack_mask != bt_kill_ack_msg[kill_msk] ||
+ priv->kill_cts_mask != bt_kill_cts_msg[kill_msk]) {
priv->bt_valid |= IWLAGN_BT_VALID_KILL_ACK_MASK;
- priv->kill_ack_mask = bt_kill_ack_msg[kill_ack_msk];
+ priv->kill_ack_mask = bt_kill_ack_msg[kill_msk];
+ priv->bt_valid |= IWLAGN_BT_VALID_KILL_CTS_MASK;
+ priv->kill_cts_mask = bt_kill_cts_msg[kill_msk];
+
/* schedule to send runtime bt_config */
queue_work(priv->workqueue, &priv->bt_runtime_config);
}
-
}
void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
unsigned long flags;
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_bt_coex_profile_notif *coex = &pkt->u.bt_coex_profile_notif;
- struct iwlagn_bt_sco_cmd sco_cmd = { .flags = 0 };
struct iwl_bt_uart_msg *uart_msg = &coex->last_bt_uart_msg;
- u8 last_traffic_load;
- IWL_DEBUG_NOTIF(priv, "BT Coex notification:\n");
- IWL_DEBUG_NOTIF(priv, " status: %d\n", coex->bt_status);
- IWL_DEBUG_NOTIF(priv, " traffic load: %d\n", coex->bt_traffic_load);
- IWL_DEBUG_NOTIF(priv, " CI compliance: %d\n",
+ if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) {
+ /* bt coex disabled */
+ return;
+ }
+
+ IWL_DEBUG_COEX(priv, "BT Coex notification:\n");
+ IWL_DEBUG_COEX(priv, " status: %d\n", coex->bt_status);
+ IWL_DEBUG_COEX(priv, " traffic load: %d\n", coex->bt_traffic_load);
+ IWL_DEBUG_COEX(priv, " CI compliance: %d\n",
coex->bt_ci_compliance);
iwlagn_print_uartmsg(priv, uart_msg);
- last_traffic_load = priv->notif_bt_traffic_load;
- priv->notif_bt_traffic_load = coex->bt_traffic_load;
+ priv->last_bt_traffic_load = priv->bt_traffic_load;
if (priv->iw_mode != NL80211_IFTYPE_ADHOC) {
if (priv->bt_status != coex->bt_status ||
- last_traffic_load != coex->bt_traffic_load) {
+ priv->last_bt_traffic_load != coex->bt_traffic_load) {
if (coex->bt_status) {
/* BT on */
if (!priv->bt_ch_announce)
queue_work(priv->workqueue,
&priv->bt_traffic_change_work);
}
- if (priv->bt_sco_active !=
- (uart_msg->frame3 & BT_UART_MSG_FRAME3SCOESCO_MSK)) {
- priv->bt_sco_active = uart_msg->frame3 &
- BT_UART_MSG_FRAME3SCOESCO_MSK;
- if (priv->bt_sco_active)
- sco_cmd.flags |= IWLAGN_BT_SCO_ACTIVE;
- iwl_send_cmd_pdu_async(priv, REPLY_BT_COEX_SCO,
- sizeof(sco_cmd), &sco_cmd, NULL);
- }
}
- iwlagn_set_kill_ack_msk(priv, uart_msg);
+ iwlagn_set_kill_msk(priv, uart_msg);
/* FIXME: based on notification, adjust the prio_boost */
{
cancel_work_sync(&priv->bt_traffic_change_work);
}
+
+static bool is_single_rx_stream(struct iwl_priv *priv)
+{
+ return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC ||
+ priv->current_ht_config.single_chain_sufficient;
+}
+
+#define IWL_NUM_RX_CHAINS_MULTIPLE 3
+#define IWL_NUM_RX_CHAINS_SINGLE 2
+#define IWL_NUM_IDLE_CHAINS_DUAL 2
+#define IWL_NUM_IDLE_CHAINS_SINGLE 1
+
+/*
+ * Determine how many receiver/antenna chains to use.
+ *
+ * More provides better reception via diversity. Fewer saves power
+ * at the expense of throughput, but only when not in powersave to
+ * start with.
+ *
+ * MIMO (dual stream) requires at least 2, but works better with 3.
+ * This does not determine *which* chains to use, just how many.
+ */
+static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
+{
+ if (priv->cfg->bt_params &&
+ priv->cfg->bt_params->advanced_bt_coexist &&
+ (priv->bt_full_concurrent ||
+ priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
+ /*
+ * only use chain 'A' in bt high traffic load or
+ * full concurrency mode
+ */
+ return IWL_NUM_RX_CHAINS_SINGLE;
+ }
+ /* # of Rx chains to use when expecting MIMO. */
+ if (is_single_rx_stream(priv))
+ return IWL_NUM_RX_CHAINS_SINGLE;
+ else
+ return IWL_NUM_RX_CHAINS_MULTIPLE;
+}
+
+/*
+ * When we are in power saving mode, unless device support spatial
+ * multiplexing power save, use the active count for rx chain count.
+ */
+static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
+{
+ /* # Rx chains when idling, depending on SMPS mode */
+ switch (priv->current_ht_config.smps) {
+ case IEEE80211_SMPS_STATIC:
+ case IEEE80211_SMPS_DYNAMIC:
+ return IWL_NUM_IDLE_CHAINS_SINGLE;
+ case IEEE80211_SMPS_OFF:
+ return active_cnt;
+ default:
+ WARN(1, "invalid SMPS mode %d",
+ priv->current_ht_config.smps);
+ return active_cnt;
+ }
+}
+
+/* up to 4 chains */
+static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
+{
+ u8 res;
+ res = (chain_bitmap & BIT(0)) >> 0;
+ res += (chain_bitmap & BIT(1)) >> 1;
+ res += (chain_bitmap & BIT(2)) >> 2;
+ res += (chain_bitmap & BIT(3)) >> 3;
+ return res;
+}
+
+/**
+ * iwlagn_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
+ *
+ * Selects how many and which Rx receivers/antennas/chains to use.
+ * This should not be used for scan command ... it puts data in wrong place.
+ */
+void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
+{
+ bool is_single = is_single_rx_stream(priv);
+ bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
+ u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
+ u32 active_chains;
+ u16 rx_chain;
+
+ /* Tell uCode which antennas are actually connected.
+ * Before first association, we assume all antennas are connected.
+ * Just after first association, iwl_chain_noise_calibration()
+ * checks which antennas actually *are* connected. */
+ if (priv->chain_noise_data.active_chains)
+ active_chains = priv->chain_noise_data.active_chains;
+ else
+ active_chains = priv->hw_params.valid_rx_ant;
+
+ if (priv->cfg->bt_params &&
+ priv->cfg->bt_params->advanced_bt_coexist &&
+ (priv->bt_full_concurrent ||
+ priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) {
+ /*
+ * only use chain 'A' in bt high traffic load or
+ * full concurrency mode
+ */
+ active_chains = first_antenna(active_chains);
+ }
+
+ rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
+
+ /* How many receivers should we use? */
+ active_rx_cnt = iwl_get_active_rx_chain_count(priv);
+ idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt);
+
+
+ /* correct rx chain count according hw settings
+ * and chain noise calibration
+ */
+ valid_rx_cnt = iwl_count_chain_bitmap(active_chains);
+ if (valid_rx_cnt < active_rx_cnt)
+ active_rx_cnt = valid_rx_cnt;
+
+ if (valid_rx_cnt < idle_rx_cnt)
+ idle_rx_cnt = valid_rx_cnt;
+
+ rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
+ rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
+
+ ctx->staging.rx_chain = cpu_to_le16(rx_chain);
+
+ if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
+ ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
+ else
+ ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
+
+ IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n",
+ ctx->staging.rx_chain,
+ active_rx_cnt, idle_rx_cnt);
+
+ WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
+ active_rx_cnt < idle_rx_cnt);
+}
+
+u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid)
+{
+ int i;
+ u8 ind = ant;
+
+ if (priv->band == IEEE80211_BAND_2GHZ &&
+ priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)
+ return 0;
+
+ for (i = 0; i < RATE_ANT_NUM - 1; i++) {
+ ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
+ if (valid & BIT(ind))
+ return ind;
+ }
+ return ant;
+}
+
+static const char *get_csr_string(int cmd)
+{
+ switch (cmd) {
+ IWL_CMD(CSR_HW_IF_CONFIG_REG);
+ IWL_CMD(CSR_INT_COALESCING);
+ IWL_CMD(CSR_INT);
+ IWL_CMD(CSR_INT_MASK);
+ IWL_CMD(CSR_FH_INT_STATUS);
+ IWL_CMD(CSR_GPIO_IN);
+ IWL_CMD(CSR_RESET);
+ IWL_CMD(CSR_GP_CNTRL);
+ IWL_CMD(CSR_HW_REV);
+ IWL_CMD(CSR_EEPROM_REG);
+ IWL_CMD(CSR_EEPROM_GP);
+ IWL_CMD(CSR_OTP_GP_REG);
+ IWL_CMD(CSR_GIO_REG);
+ IWL_CMD(CSR_GP_UCODE_REG);
+ IWL_CMD(CSR_GP_DRIVER_REG);
+ IWL_CMD(CSR_UCODE_DRV_GP1);
+ IWL_CMD(CSR_UCODE_DRV_GP2);
+ IWL_CMD(CSR_LED_REG);
+ IWL_CMD(CSR_DRAM_INT_TBL_REG);
+ IWL_CMD(CSR_GIO_CHICKEN_BITS);
+ IWL_CMD(CSR_ANA_PLL_CFG);
+ IWL_CMD(CSR_HW_REV_WA_REG);
+ IWL_CMD(CSR_DBG_HPET_MEM_REG);
+ default:
+ return "UNKNOWN";
+ }
+}
+
+void iwl_dump_csr(struct iwl_priv *priv)
+{
+ int i;
+ static const u32 csr_tbl[] = {
+ CSR_HW_IF_CONFIG_REG,
+ CSR_INT_COALESCING,
+ CSR_INT,
+ CSR_INT_MASK,
+ CSR_FH_INT_STATUS,
+ CSR_GPIO_IN,
+ CSR_RESET,
+ CSR_GP_CNTRL,
+ CSR_HW_REV,
+ CSR_EEPROM_REG,
+ CSR_EEPROM_GP,
+ CSR_OTP_GP_REG,
+ CSR_GIO_REG,
+ CSR_GP_UCODE_REG,
+ CSR_GP_DRIVER_REG,
+ CSR_UCODE_DRV_GP1,
+ CSR_UCODE_DRV_GP2,
+ CSR_LED_REG,
+ CSR_DRAM_INT_TBL_REG,
+ CSR_GIO_CHICKEN_BITS,
+ CSR_ANA_PLL_CFG,
+ CSR_HW_REV_WA_REG,
+ CSR_DBG_HPET_MEM_REG
+ };
+ IWL_ERR(priv, "CSR values:\n");
+ IWL_ERR(priv, "(2nd byte of CSR_INT_COALESCING is "
+ "CSR_INT_PERIODIC_REG)\n");
+ for (i = 0; i < ARRAY_SIZE(csr_tbl); i++) {
+ IWL_ERR(priv, " %25s: 0X%08x\n",
+ get_csr_string(csr_tbl[i]),
+ iwl_read32(priv, csr_tbl[i]));
+ }
+}
+
+static const char *get_fh_string(int cmd)
+{
+ switch (cmd) {
+ IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG);
+ IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG);
+ IWL_CMD(FH_RSCSR_CHNL0_WPTR);
+ IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG);
+ IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG);
+ IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG);
+ IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV);
+ IWL_CMD(FH_TSSR_TX_STATUS_REG);
+ IWL_CMD(FH_TSSR_TX_ERROR_REG);
+ default:
+ return "UNKNOWN";
+ }
+}
+
+int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display)
+{
+ int i;
+#ifdef CONFIG_IWLWIFI_DEBUG
+ int pos = 0;
+ size_t bufsz = 0;
+#endif
+ static const u32 fh_tbl[] = {
+ FH_RSCSR_CHNL0_STTS_WPTR_REG,
+ FH_RSCSR_CHNL0_RBDCB_BASE_REG,
+ FH_RSCSR_CHNL0_WPTR,
+ FH_MEM_RCSR_CHNL0_CONFIG_REG,
+ FH_MEM_RSSR_SHARED_CTRL_REG,
+ FH_MEM_RSSR_RX_STATUS_REG,
+ FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV,
+ FH_TSSR_TX_STATUS_REG,
+ FH_TSSR_TX_ERROR_REG
+ };
+#ifdef CONFIG_IWLWIFI_DEBUG
+ if (display) {
+ bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40;
+ *buf = kmalloc(bufsz, GFP_KERNEL);
+ if (!*buf)
+ return -ENOMEM;
+ pos += scnprintf(*buf + pos, bufsz - pos,
+ "FH register values:\n");
+ for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
+ pos += scnprintf(*buf + pos, bufsz - pos,
+ " %34s: 0X%08x\n",
+ get_fh_string(fh_tbl[i]),
+ iwl_read_direct32(priv, fh_tbl[i]));
+ }
+ return pos;
+ }
+#endif
+ IWL_ERR(priv, "FH register values:\n");
+ for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
+ IWL_ERR(priv, " %34s: 0X%08x\n",
+ get_fh_string(fh_tbl[i]),
+ iwl_read_direct32(priv, fh_tbl[i]));
+ }
+ return 0;
+}
+
+/* notification wait support */
+void iwlagn_init_notification_wait(struct iwl_priv *priv,
+ struct iwl_notification_wait *wait_entry,
+ u8 cmd,
+ void (*fn)(struct iwl_priv *priv,
+ struct iwl_rx_packet *pkt,
+ void *data),
+ void *fn_data)
+{
+ wait_entry->fn = fn;
+ wait_entry->fn_data = fn_data;
+ wait_entry->cmd = cmd;
+ wait_entry->triggered = false;
+ wait_entry->aborted = false;
+
+ spin_lock_bh(&priv->_agn.notif_wait_lock);
+ list_add(&wait_entry->list, &priv->_agn.notif_waits);
+ spin_unlock_bh(&priv->_agn.notif_wait_lock);
+}
+
+int iwlagn_wait_notification(struct iwl_priv *priv,
+ struct iwl_notification_wait *wait_entry,
+ unsigned long timeout)
+{
+ int ret;
+
+ ret = wait_event_timeout(priv->_agn.notif_waitq,
+ wait_entry->triggered || wait_entry->aborted,
+ timeout);
+
+ spin_lock_bh(&priv->_agn.notif_wait_lock);
+ list_del(&wait_entry->list);
+ spin_unlock_bh(&priv->_agn.notif_wait_lock);
+
+ if (wait_entry->aborted)
+ return -EIO;
+
+ /* return value is always >= 0 */
+ if (ret <= 0)
+ return -ETIMEDOUT;
+ return 0;
+}
+
+void iwlagn_remove_notification(struct iwl_priv *priv,
+ struct iwl_notification_wait *wait_entry)
+{
+ spin_lock_bh(&priv->_agn.notif_wait_lock);
+ list_del(&wait_entry->list);
+ spin_unlock_bh(&priv->_agn.notif_wait_lock);
+}
+
+int iwlagn_start_device(struct iwl_priv *priv)
+{
+ int ret;
+
+ if ((priv->cfg->sku & EEPROM_SKU_CAP_AMT_ENABLE) &&
+ iwl_prepare_card_hw(priv)) {
+ IWL_WARN(priv, "Exit HW not ready\n");
+ return -EIO;
+ }
+
+ /* If platform's RF_KILL switch is NOT set to KILL */
+ if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
+ clear_bit(STATUS_RF_KILL_HW, &priv->status);
+ else
+ set_bit(STATUS_RF_KILL_HW, &priv->status);
+
+ if (iwl_is_rfkill(priv)) {
+ wiphy_rfkill_set_hw_state(priv->hw->wiphy, true);
+ iwl_enable_interrupts(priv);
+ return -ERFKILL;
+ }
+
+ iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
+
+ ret = iwlagn_hw_nic_init(priv);
+ if (ret) {
+ IWL_ERR(priv, "Unable to init nic\n");
+ return ret;
+ }
+
+ /* make sure rfkill handshake bits are cleared */
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ /* clear (again), then enable host interrupts */
+ iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
+ iwl_enable_interrupts(priv);
+
+ /* really make sure rfkill handshake bits are cleared */
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ return 0;
+}
+
+void iwlagn_stop_device(struct iwl_priv *priv)
+{
+ unsigned long flags;
+
+ /* stop and reset the on-board processor */
+ iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+
+ /* tell the device to stop sending interrupts */
+ spin_lock_irqsave(&priv->lock, flags);
+ iwl_disable_interrupts(priv);
+ spin_unlock_irqrestore(&priv->lock, flags);
+ iwl_synchronize_irq(priv);
+
+ /* device going down, Stop using ICT table */
+ iwl_disable_ict(priv);
+
+ /*
+ * If a HW restart happens during firmware loading,
+ * then the firmware loading might call this function
+ * and later it might be called again due to the
+ * restart. So don't process again if the device is
+ * already dead.
+ */
+ if (test_bit(STATUS_DEVICE_ENABLED, &priv->status)) {
+ iwlagn_txq_ctx_stop(priv);
+ iwlagn_rxq_stop(priv);
+
+ /* Power-down device's busmaster DMA clocks */
+ iwl_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
+ udelay(5);
+ }
+
+ /* Make sure (redundant) we've released our request to stay awake */
+ iwl_clear_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+
+ /* Stop the device, and put it in low power state */
+ iwl_apm_stop(priv);
+}
Code Review / linux-2.6.git / blobdiff