iwlagn: move tx transport functions to iwl-trans-tx-pcie.c
authorEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Mon, 11 Jul 2011 14:39:46 +0000 (07:39 -0700)
committerWey-Yi Guy <wey-yi.w.guy@intel.com>
Sat, 16 Jul 2011 14:38:59 +0000 (07:38 -0700)
There are still a few functions here and there that should be
put in the transport layer. Mainly the functions that are related to the reclaim flow.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
drivers/net/wireless/iwlwifi/Makefile
drivers/net/wireless/iwlwifi/iwl-agn.h
drivers/net/wireless/iwlwifi/iwl-core.h
drivers/net/wireless/iwlwifi/iwl-hcmd.c [deleted file]
drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h
drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c [moved from drivers/net/wireless/iwlwifi/iwl-tx.c with 71% similarity]
drivers/net/wireless/iwlwifi/iwl-trans.h

index d3c8e37..1468e16 100644 (file)
@@ -5,8 +5,8 @@ iwlagn-objs             += iwl-agn-ucode.o iwl-agn-tx.o
 iwlagn-objs            += iwl-agn-lib.o iwl-agn-calib.o iwl-io.o
 iwlagn-objs            += iwl-agn-tt.o iwl-agn-sta.o iwl-agn-eeprom.o
 
-iwlagn-objs            += iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
-iwlagn-objs            += iwl-rx.o iwl-tx.o iwl-sta.o
+iwlagn-objs            += iwl-core.o iwl-eeprom.o iwl-power.o
+iwlagn-objs            += iwl-rx.o iwl-sta.o
 iwlagn-objs            += iwl-scan.o iwl-led.o
 iwlagn-objs             += iwl-agn-rxon.o iwl-agn-ict.o
 iwlagn-objs             += iwl-5000.o
@@ -14,7 +14,7 @@ iwlagn-objs             += iwl-6000.o
 iwlagn-objs             += iwl-1000.o
 iwlagn-objs             += iwl-2000.o
 iwlagn-objs             += iwl-pci.o
-iwlagn-objs             += iwl-trans.o iwl-trans-rx-pcie.o
+iwlagn-objs             += iwl-trans.o iwl-trans-rx-pcie.o iwl-trans-tx-pcie.o
 
 iwlagn-$(CONFIG_IWLWIFI_DEBUGFS) += iwl-debugfs.o
 iwlagn-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o
index 1655e59..0c4e145 100644 (file)
@@ -189,9 +189,6 @@ void iwl_rx_dispatch(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 /* tx */
 void iwlagn_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq,
                                int index);
-int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv,
-                                struct iwl_tx_queue *txq,
-                                dma_addr_t addr, u16 len, u8 reset);
 void iwlagn_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
                              struct ieee80211_tx_info *info);
 int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
index 711d2f6..c10ced5 100644 (file)
@@ -336,18 +336,8 @@ static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 /*****************************************************
 * RX
 ******************************************************/
-void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
-
 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
 
-/* TX helpers */
-
-/*****************************************************
-* TX
-******************************************************/
-void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
-int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
-                         int count, int slots_num, u32 id);
 void iwl_setup_watchdog(struct iwl_priv *priv);
 /*****************************************************
  * TX power
@@ -398,12 +388,6 @@ int __must_check iwl_scan_initiate(struct iwl_priv *priv,
  *****************************************************/
 
 const char *get_cmd_string(u8 cmd);
-int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
-int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags,
-                                 u16 len, const void *data);
-
-int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
-
 void iwl_bg_watchdog(unsigned long data);
 u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval);
 __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
diff --git a/drivers/net/wireless/iwlwifi/iwl-hcmd.c b/drivers/net/wireless/iwlwifi/iwl-hcmd.c
deleted file mode 100644 (file)
index 6cff8c1..0000000
+++ /dev/null
@@ -1,271 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * 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
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- *  Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <net/mac80211.h>
-
-#include "iwl-dev.h" /* FIXME: remove */
-#include "iwl-debug.h"
-#include "iwl-eeprom.h"
-#include "iwl-core.h"
-
-
-const char *get_cmd_string(u8 cmd)
-{
-       switch (cmd) {
-               IWL_CMD(REPLY_ALIVE);
-               IWL_CMD(REPLY_ERROR);
-               IWL_CMD(REPLY_RXON);
-               IWL_CMD(REPLY_RXON_ASSOC);
-               IWL_CMD(REPLY_QOS_PARAM);
-               IWL_CMD(REPLY_RXON_TIMING);
-               IWL_CMD(REPLY_ADD_STA);
-               IWL_CMD(REPLY_REMOVE_STA);
-               IWL_CMD(REPLY_REMOVE_ALL_STA);
-               IWL_CMD(REPLY_TXFIFO_FLUSH);
-               IWL_CMD(REPLY_WEPKEY);
-               IWL_CMD(REPLY_TX);
-               IWL_CMD(REPLY_LEDS_CMD);
-               IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
-               IWL_CMD(COEX_PRIORITY_TABLE_CMD);
-               IWL_CMD(COEX_MEDIUM_NOTIFICATION);
-               IWL_CMD(COEX_EVENT_CMD);
-               IWL_CMD(REPLY_QUIET_CMD);
-               IWL_CMD(REPLY_CHANNEL_SWITCH);
-               IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
-               IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
-               IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
-               IWL_CMD(POWER_TABLE_CMD);
-               IWL_CMD(PM_SLEEP_NOTIFICATION);
-               IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
-               IWL_CMD(REPLY_SCAN_CMD);
-               IWL_CMD(REPLY_SCAN_ABORT_CMD);
-               IWL_CMD(SCAN_START_NOTIFICATION);
-               IWL_CMD(SCAN_RESULTS_NOTIFICATION);
-               IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
-               IWL_CMD(BEACON_NOTIFICATION);
-               IWL_CMD(REPLY_TX_BEACON);
-               IWL_CMD(WHO_IS_AWAKE_NOTIFICATION);
-               IWL_CMD(QUIET_NOTIFICATION);
-               IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
-               IWL_CMD(MEASURE_ABORT_NOTIFICATION);
-               IWL_CMD(REPLY_BT_CONFIG);
-               IWL_CMD(REPLY_STATISTICS_CMD);
-               IWL_CMD(STATISTICS_NOTIFICATION);
-               IWL_CMD(REPLY_CARD_STATE_CMD);
-               IWL_CMD(CARD_STATE_NOTIFICATION);
-               IWL_CMD(MISSED_BEACONS_NOTIFICATION);
-               IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
-               IWL_CMD(SENSITIVITY_CMD);
-               IWL_CMD(REPLY_PHY_CALIBRATION_CMD);
-               IWL_CMD(REPLY_RX_PHY_CMD);
-               IWL_CMD(REPLY_RX_MPDU_CMD);
-               IWL_CMD(REPLY_RX);
-               IWL_CMD(REPLY_COMPRESSED_BA);
-               IWL_CMD(CALIBRATION_CFG_CMD);
-               IWL_CMD(CALIBRATION_RES_NOTIFICATION);
-               IWL_CMD(CALIBRATION_COMPLETE_NOTIFICATION);
-               IWL_CMD(REPLY_TX_POWER_DBM_CMD);
-               IWL_CMD(TEMPERATURE_NOTIFICATION);
-               IWL_CMD(TX_ANT_CONFIGURATION_CMD);
-               IWL_CMD(REPLY_BT_COEX_PROFILE_NOTIF);
-               IWL_CMD(REPLY_BT_COEX_PRIO_TABLE);
-               IWL_CMD(REPLY_BT_COEX_PROT_ENV);
-               IWL_CMD(REPLY_WIPAN_PARAMS);
-               IWL_CMD(REPLY_WIPAN_RXON);
-               IWL_CMD(REPLY_WIPAN_RXON_TIMING);
-               IWL_CMD(REPLY_WIPAN_RXON_ASSOC);
-               IWL_CMD(REPLY_WIPAN_QOS_PARAM);
-               IWL_CMD(REPLY_WIPAN_WEPKEY);
-               IWL_CMD(REPLY_WIPAN_P2P_CHANNEL_SWITCH);
-               IWL_CMD(REPLY_WIPAN_NOA_NOTIFICATION);
-               IWL_CMD(REPLY_WIPAN_DEACTIVATION_COMPLETE);
-       default:
-               return "UNKNOWN";
-
-       }
-}
-
-#define HOST_COMPLETE_TIMEOUT (2 * HZ)
-
-static void iwl_generic_cmd_callback(struct iwl_priv *priv,
-                                    struct iwl_device_cmd *cmd,
-                                    struct iwl_rx_packet *pkt)
-{
-       if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
-               IWL_ERR(priv, "Bad return from %s (0x%08X)\n",
-                       get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
-               return;
-       }
-
-#ifdef CONFIG_IWLWIFI_DEBUG
-       switch (cmd->hdr.cmd) {
-       case REPLY_TX_LINK_QUALITY_CMD:
-       case SENSITIVITY_CMD:
-               IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n",
-                               get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
-               break;
-       default:
-               IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n",
-                               get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
-       }
-#endif
-}
-
-static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
-{
-       int ret;
-
-       /* An asynchronous command can not expect an SKB to be set. */
-       if (WARN_ON(cmd->flags & CMD_WANT_SKB))
-               return -EINVAL;
-
-       /* Assign a generic callback if one is not provided */
-       if (!cmd->callback)
-               cmd->callback = iwl_generic_cmd_callback;
-
-       if (test_bit(STATUS_EXIT_PENDING, &priv->status))
-               return -EBUSY;
-
-       ret = iwl_enqueue_hcmd(priv, cmd);
-       if (ret < 0) {
-               IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
-                         get_cmd_string(cmd->id), ret);
-               return ret;
-       }
-       return 0;
-}
-
-static int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
-{
-       int cmd_idx;
-       int ret;
-
-       lockdep_assert_held(&priv->mutex);
-
-        /* A synchronous command can not have a callback set. */
-       if (WARN_ON(cmd->callback))
-               return -EINVAL;
-
-       IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n",
-                       get_cmd_string(cmd->id));
-
-       set_bit(STATUS_HCMD_ACTIVE, &priv->status);
-       IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n",
-                       get_cmd_string(cmd->id));
-
-       cmd_idx = iwl_enqueue_hcmd(priv, cmd);
-       if (cmd_idx < 0) {
-               ret = cmd_idx;
-               clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
-               IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
-                         get_cmd_string(cmd->id), ret);
-               return ret;
-       }
-
-       ret = wait_event_interruptible_timeout(priv->wait_command_queue,
-                       !test_bit(STATUS_HCMD_ACTIVE, &priv->status),
-                       HOST_COMPLETE_TIMEOUT);
-       if (!ret) {
-               if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
-                       IWL_ERR(priv,
-                               "Error sending %s: time out after %dms.\n",
-                               get_cmd_string(cmd->id),
-                               jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
-
-                       clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
-                       IWL_DEBUG_INFO(priv, "Clearing HCMD_ACTIVE for command %s\n",
-                                      get_cmd_string(cmd->id));
-                       ret = -ETIMEDOUT;
-                       goto cancel;
-               }
-       }
-
-       if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
-               IWL_ERR(priv, "Command %s aborted: RF KILL Switch\n",
-                              get_cmd_string(cmd->id));
-               ret = -ECANCELED;
-               goto fail;
-       }
-       if (test_bit(STATUS_FW_ERROR, &priv->status)) {
-               IWL_ERR(priv, "Command %s failed: FW Error\n",
-                              get_cmd_string(cmd->id));
-               ret = -EIO;
-               goto fail;
-       }
-       if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) {
-               IWL_ERR(priv, "Error: Response NULL in '%s'\n",
-                         get_cmd_string(cmd->id));
-               ret = -EIO;
-               goto cancel;
-       }
-
-       return 0;
-
-cancel:
-       if (cmd->flags & CMD_WANT_SKB) {
-               /*
-                * Cancel the CMD_WANT_SKB flag for the cmd in the
-                * TX cmd queue. Otherwise in case the cmd comes
-                * in later, it will possibly set an invalid
-                * address (cmd->meta.source).
-                */
-               priv->txq[priv->cmd_queue].meta[cmd_idx].flags &=
-                                                       ~CMD_WANT_SKB;
-       }
-fail:
-       if (cmd->reply_page) {
-               iwl_free_pages(priv, cmd->reply_page);
-               cmd->reply_page = 0;
-       }
-
-       return ret;
-}
-
-int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
-{
-       if (cmd->flags & CMD_ASYNC)
-               return iwl_send_cmd_async(priv, cmd);
-
-       return iwl_send_cmd_sync(priv, cmd);
-}
-
-int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags, u16 len,
-                    const void *data)
-{
-       struct iwl_host_cmd cmd = {
-               .id = id,
-               .len = { len, },
-               .data = { data, },
-               .flags = flags,
-       };
-
-       return iwl_send_cmd(priv, &cmd);
-}
index 6c56a3f..8307064 100644 (file)
 /*This file includes the declaration that are internal to the
  * trans_pcie layer */
 
+/*****************************************************
+* RX
+******************************************************/
 void iwl_bg_rx_replenish(struct work_struct *data);
 void iwl_irq_tasklet(struct iwl_priv *priv);
 void iwlagn_rx_replenish(struct iwl_priv *priv);
 void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
                        struct iwl_rx_queue *q);
 
+/*****************************************************
+* TX / HCMD
+******************************************************/
+void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
+void iwlagn_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq,
+                               int index);
+int iwlagn_txq_attach_buf_to_tfd(struct iwl_priv *priv,
+                                struct iwl_tx_queue *txq,
+                                dma_addr_t addr, u16 len, u8 reset);
+int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
+                         int count, int slots_num, u32 id);
+int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
+int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags,
+                       u16 len, const void *data);
+void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
+
+
 #endif /* __iwl_trans_int_pcie_h__ */
 
similarity index 71%
rename from drivers/net/wireless/iwlwifi/iwl-tx.c
rename to drivers/net/wireless/iwlwifi/iwl-trans-tx-pcie.c
index 9b07e07..f3b531b 100644 (file)
  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  *
  *****************************************************************************/
-
 #include <linux/etherdevice.h>
-#include <linux/sched.h>
 #include <linux/slab.h>
+#include <linux/sched.h>
 #include <net/mac80211.h>
-#include "iwl-eeprom.h"
+
 #include "iwl-agn.h"
 #include "iwl-dev.h"
 #include "iwl-core.h"
-#include "iwl-sta.h"
 #include "iwl-io.h"
 #include "iwl-helpers.h"
+#include "iwl-trans-int-pcie.h"
 
 /**
  * iwl_txq_update_write_ptr - Send new write index to hardware
@@ -126,7 +125,7 @@ static inline u8 iwl_tfd_get_num_tbs(struct iwl_tfd *tfd)
 }
 
 static void iwlagn_unmap_tfd(struct iwl_priv *priv, struct iwl_cmd_meta *meta,
-                            struct iwl_tfd *tfd, enum dma_data_direction dma_dir)
+                    struct iwl_tfd *tfd, enum dma_data_direction dma_dir)
 {
        int i;
        int num_tbs;
@@ -303,7 +302,7 @@ int iwl_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
  * failed. On success, it turns the index (> 0) of command in the
  * command queue.
  */
-int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+static int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
 {
        struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue];
        struct iwl_queue *q = &txq->q;
@@ -574,3 +573,236 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
 
        spin_unlock_irqrestore(&priv->hcmd_lock, flags);
 }
+
+const char *get_cmd_string(u8 cmd)
+{
+       switch (cmd) {
+               IWL_CMD(REPLY_ALIVE);
+               IWL_CMD(REPLY_ERROR);
+               IWL_CMD(REPLY_RXON);
+               IWL_CMD(REPLY_RXON_ASSOC);
+               IWL_CMD(REPLY_QOS_PARAM);
+               IWL_CMD(REPLY_RXON_TIMING);
+               IWL_CMD(REPLY_ADD_STA);
+               IWL_CMD(REPLY_REMOVE_STA);
+               IWL_CMD(REPLY_REMOVE_ALL_STA);
+               IWL_CMD(REPLY_TXFIFO_FLUSH);
+               IWL_CMD(REPLY_WEPKEY);
+               IWL_CMD(REPLY_TX);
+               IWL_CMD(REPLY_LEDS_CMD);
+               IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
+               IWL_CMD(COEX_PRIORITY_TABLE_CMD);
+               IWL_CMD(COEX_MEDIUM_NOTIFICATION);
+               IWL_CMD(COEX_EVENT_CMD);
+               IWL_CMD(REPLY_QUIET_CMD);
+               IWL_CMD(REPLY_CHANNEL_SWITCH);
+               IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
+               IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
+               IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
+               IWL_CMD(POWER_TABLE_CMD);
+               IWL_CMD(PM_SLEEP_NOTIFICATION);
+               IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
+               IWL_CMD(REPLY_SCAN_CMD);
+               IWL_CMD(REPLY_SCAN_ABORT_CMD);
+               IWL_CMD(SCAN_START_NOTIFICATION);
+               IWL_CMD(SCAN_RESULTS_NOTIFICATION);
+               IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
+               IWL_CMD(BEACON_NOTIFICATION);
+               IWL_CMD(REPLY_TX_BEACON);
+               IWL_CMD(WHO_IS_AWAKE_NOTIFICATION);
+               IWL_CMD(QUIET_NOTIFICATION);
+               IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
+               IWL_CMD(MEASURE_ABORT_NOTIFICATION);
+               IWL_CMD(REPLY_BT_CONFIG);
+               IWL_CMD(REPLY_STATISTICS_CMD);
+               IWL_CMD(STATISTICS_NOTIFICATION);
+               IWL_CMD(REPLY_CARD_STATE_CMD);
+               IWL_CMD(CARD_STATE_NOTIFICATION);
+               IWL_CMD(MISSED_BEACONS_NOTIFICATION);
+               IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
+               IWL_CMD(SENSITIVITY_CMD);
+               IWL_CMD(REPLY_PHY_CALIBRATION_CMD);
+               IWL_CMD(REPLY_RX_PHY_CMD);
+               IWL_CMD(REPLY_RX_MPDU_CMD);
+               IWL_CMD(REPLY_RX);
+               IWL_CMD(REPLY_COMPRESSED_BA);
+               IWL_CMD(CALIBRATION_CFG_CMD);
+               IWL_CMD(CALIBRATION_RES_NOTIFICATION);
+               IWL_CMD(CALIBRATION_COMPLETE_NOTIFICATION);
+               IWL_CMD(REPLY_TX_POWER_DBM_CMD);
+               IWL_CMD(TEMPERATURE_NOTIFICATION);
+               IWL_CMD(TX_ANT_CONFIGURATION_CMD);
+               IWL_CMD(REPLY_BT_COEX_PROFILE_NOTIF);
+               IWL_CMD(REPLY_BT_COEX_PRIO_TABLE);
+               IWL_CMD(REPLY_BT_COEX_PROT_ENV);
+               IWL_CMD(REPLY_WIPAN_PARAMS);
+               IWL_CMD(REPLY_WIPAN_RXON);
+               IWL_CMD(REPLY_WIPAN_RXON_TIMING);
+               IWL_CMD(REPLY_WIPAN_RXON_ASSOC);
+               IWL_CMD(REPLY_WIPAN_QOS_PARAM);
+               IWL_CMD(REPLY_WIPAN_WEPKEY);
+               IWL_CMD(REPLY_WIPAN_P2P_CHANNEL_SWITCH);
+               IWL_CMD(REPLY_WIPAN_NOA_NOTIFICATION);
+               IWL_CMD(REPLY_WIPAN_DEACTIVATION_COMPLETE);
+       default:
+               return "UNKNOWN";
+
+       }
+}
+
+#define HOST_COMPLETE_TIMEOUT (2 * HZ)
+
+static void iwl_generic_cmd_callback(struct iwl_priv *priv,
+                                    struct iwl_device_cmd *cmd,
+                                    struct iwl_rx_packet *pkt)
+{
+       if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
+               IWL_ERR(priv, "Bad return from %s (0x%08X)\n",
+                       get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
+               return;
+       }
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+       switch (cmd->hdr.cmd) {
+       case REPLY_TX_LINK_QUALITY_CMD:
+       case SENSITIVITY_CMD:
+               IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n",
+                               get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
+               break;
+       default:
+               IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n",
+                               get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
+       }
+#endif
+}
+
+static int iwl_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+{
+       int ret;
+
+       /* An asynchronous command can not expect an SKB to be set. */
+       if (WARN_ON(cmd->flags & CMD_WANT_SKB))
+               return -EINVAL;
+
+       /* Assign a generic callback if one is not provided */
+       if (!cmd->callback)
+               cmd->callback = iwl_generic_cmd_callback;
+
+       if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+               return -EBUSY;
+
+       ret = iwl_enqueue_hcmd(priv, cmd);
+       if (ret < 0) {
+               IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
+                         get_cmd_string(cmd->id), ret);
+               return ret;
+       }
+       return 0;
+}
+
+static int iwl_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+{
+       int cmd_idx;
+       int ret;
+
+       lockdep_assert_held(&priv->mutex);
+
+        /* A synchronous command can not have a callback set. */
+       if (WARN_ON(cmd->callback))
+               return -EINVAL;
+
+       IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n",
+                       get_cmd_string(cmd->id));
+
+       set_bit(STATUS_HCMD_ACTIVE, &priv->status);
+       IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n",
+                       get_cmd_string(cmd->id));
+
+       cmd_idx = iwl_enqueue_hcmd(priv, cmd);
+       if (cmd_idx < 0) {
+               ret = cmd_idx;
+               clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+               IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
+                         get_cmd_string(cmd->id), ret);
+               return ret;
+       }
+
+       ret = wait_event_interruptible_timeout(priv->wait_command_queue,
+                       !test_bit(STATUS_HCMD_ACTIVE, &priv->status),
+                       HOST_COMPLETE_TIMEOUT);
+       if (!ret) {
+               if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
+                       IWL_ERR(priv,
+                               "Error sending %s: time out after %dms.\n",
+                               get_cmd_string(cmd->id),
+                               jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
+
+                       clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
+                       IWL_DEBUG_INFO(priv, "Clearing HCMD_ACTIVE for command"
+                                "%s\n", get_cmd_string(cmd->id));
+                       ret = -ETIMEDOUT;
+                       goto cancel;
+               }
+       }
+
+       if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
+               IWL_ERR(priv, "Command %s aborted: RF KILL Switch\n",
+                              get_cmd_string(cmd->id));
+               ret = -ECANCELED;
+               goto fail;
+       }
+       if (test_bit(STATUS_FW_ERROR, &priv->status)) {
+               IWL_ERR(priv, "Command %s failed: FW Error\n",
+                              get_cmd_string(cmd->id));
+               ret = -EIO;
+               goto fail;
+       }
+       if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) {
+               IWL_ERR(priv, "Error: Response NULL in '%s'\n",
+                         get_cmd_string(cmd->id));
+               ret = -EIO;
+               goto cancel;
+       }
+
+       return 0;
+
+cancel:
+       if (cmd->flags & CMD_WANT_SKB) {
+               /*
+                * Cancel the CMD_WANT_SKB flag for the cmd in the
+                * TX cmd queue. Otherwise in case the cmd comes
+                * in later, it will possibly set an invalid
+                * address (cmd->meta.source).
+                */
+               priv->txq[priv->cmd_queue].meta[cmd_idx].flags &=
+                                                       ~CMD_WANT_SKB;
+       }
+fail:
+       if (cmd->reply_page) {
+               iwl_free_pages(priv, cmd->reply_page);
+               cmd->reply_page = 0;
+       }
+
+       return ret;
+}
+
+int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+{
+       if (cmd->flags & CMD_ASYNC)
+               return iwl_send_cmd_async(priv, cmd);
+
+       return iwl_send_cmd_sync(priv, cmd);
+}
+
+int iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id, u32 flags, u16 len,
+                    const void *data)
+{
+       struct iwl_host_cmd cmd = {
+               .id = id,
+               .len = { len, },
+               .data = { data, },
+               .flags = flags,
+       };
+
+       return iwl_send_cmd(priv, &cmd);
+}
index 886730e..8293f54 100644 (file)
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  *****************************************************************************/
+
+ /*This file includes the declaration that are exported from the transport
+ * layer */
+
 static inline int trans_rx_init(struct iwl_priv *priv)
 {
        return priv->trans.ops->rx_init(priv);