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;
}
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);
/* 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 */
else
tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD;
- return iwl_send_cmd_pdu(priv, tx_ant_cfg_cmd, sizeof(tx_power_cmd),
- &tx_power_cmd);
+ return priv->trans.ops->send_cmd_pdu(priv, tx_ant_cfg_cmd, CMD_SYNC,
+ sizeof(tx_power_cmd), &tx_power_cmd);
}
void iwlagn_temperature(struct iwl_priv *priv)
.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;
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;
{
unsigned long flags;
struct iwl_rx_queue *rxq = &priv->rxq;
- int ret;
/* nic_init */
spin_lock_irqsave(&priv->lock, flags);
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 */
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! */
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)
-{
-
- /* stop Rx DMA */
- iwl_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
- iwl_poll_direct_bit(priv, FH_MEM_RSSR_RX_STATUS_REG,
- FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
-
- return 0;
-}
-
int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band)
{
int idx = 0;
{
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), },
+ .flags = CMD_SYNC,
};
struct iwl_scan_cmd *scan;
struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
* 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.
*/
- scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT :
- IWL_GOOD_CRC_TH_NEVER;
+ 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;
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);
+ 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);
- if (priv->cfg->ops->hcmd->set_pan_params) {
- ret = priv->cfg->ops->hcmd->set_pan_params(priv);
- if (ret)
- return ret;
- }
+ ret = iwlagn_set_pan_params(priv);
+ if (ret)
+ return ret;
- ret = iwl_send_cmd_sync(priv, &cmd);
+ ret = priv->trans.ops->send_cmd(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_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",
flush_cmd.fifo_control);
flush_cmd.flush_control = cpu_to_le16(flush_control);
- return iwl_send_cmd(priv, &cmd);
+ return priv->trans.ops->send_cmd(priv, &cmd);
}
void iwlagn_dev_txfifo_flush(struct iwl_priv *priv, u16 flush_control)
{
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;
}
* (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) {
+ if (!iwlagn_mod_params.bt_coex_active ||
+ priv->iw_mode == NL80211_IFTYPE_ADHOC) {
basic.flags = IWLAGN_BT_FLAG_COEX_MODE_DISABLED;
} else {
basic.flags = IWLAGN_BT_FLAG_COEX_MODE_3W <<
if (priv->bt_ch_announce)
basic.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION;
- IWL_DEBUG_INFO(priv, "BT coex flag: 0X%x\n", basic.flags);
+ IWL_DEBUG_COEX(priv, "BT coex flag: 0X%x\n", basic.flags);
}
priv->bt_enable_flag = basic.flags;
if (priv->bt_full_concurrent)
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",
+ IWL_DEBUG_COEX(priv, "BT coex %s in %s mode\n",
basic.flags ? "active" : "disabled",
priv->bt_full_concurrent ?
"full concurrency" : "3-wire");
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);
+ ret = priv->trans.ops->send_cmd_pdu(priv, REPLY_BT_CONFIG,
+ CMD_SYNC, 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);
+ ret = priv->trans.ops->send_cmd_pdu(priv, REPLY_BT_CONFIG,
+ CMD_SYNC, sizeof(bt_cmd_6000), &bt_cmd_6000);
}
if (ret)
IWL_ERR(priv, "failed to send BT Coex Config\n");
* coex profile notifications. Ignore that since only bad consequence
* can be not matching debug print with actual state.
*/
- IWL_DEBUG_INFO(priv, "BT traffic load changes: %d\n",
+ IWL_DEBUG_COEX(priv, "BT traffic load changes: %d\n",
priv->bt_traffic_load);
switch (priv->bt_traffic_load) {
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);
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, Page = "
+ 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,
return;
}
- 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",
+ 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);
/* 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),
- u8 cmd)
+ 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);
}
-signed long iwlagn_wait_notification(struct iwl_priv *priv,
- struct iwl_notification_wait *wait_entry,
- unsigned long timeout)
+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->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);
- return ret;
+ 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,
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)) {
+ priv->trans.ops->tx_stop(priv);
+ priv->trans.ops->rx_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);
+}