iwlwifi: split the drivers for agn and legacy devices 3945/4965
Intel WiFi devices 3945 and 4965 now have their own driver in the folder
drivers/net/wireless/iwlegacy
Add support to build these drivers independently of the driver for
AGN devices. Selecting the 3945 builds iwl3945.ko and iwl_legacy.ko,
and selecting the 4965 builds iwl4965.ko and iwl_legacy.ko. iwl-legacy.ko
contains code shared between both devices.
The 3945 is an ABG/BG device, with no support for 802.11n. The 4965 is a 2x3
ABGN device.
Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>
Acked-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlegacy/iwl-hcmd.c b/drivers/net/wireless/iwlegacy/iwl-hcmd.c
new file mode 100644
index 0000000..9d721cb
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/iwl-hcmd.c
@@ -0,0 +1,271 @@
+/******************************************************************************
+ *
+ * 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"
+#include "iwl-debug.h"
+#include "iwl-eeprom.h"
+#include "iwl-core.h"
+
+
+const char *iwl_legacy_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_WEPKEY);
+ IWL_CMD(REPLY_3945_RX);
+ IWL_CMD(REPLY_TX);
+ IWL_CMD(REPLY_RATE_SCALE);
+ IWL_CMD(REPLY_LEDS_CMD);
+ IWL_CMD(REPLY_TX_LINK_QUALITY_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(REPLY_TX_PWR_TABLE_CMD);
+ IWL_CMD(REPLY_BT_CONFIG);
+ IWL_CMD(REPLY_STATISTICS_CMD);
+ IWL_CMD(STATISTICS_NOTIFICATION);
+ 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);
+ default:
+ return "UNKNOWN";
+
+ }
+}
+EXPORT_SYMBOL(iwl_legacy_get_cmd_string);
+
+#define HOST_COMPLETE_TIMEOUT (HZ / 2)
+
+static void iwl_legacy_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",
+ iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
+ return;
+ }
+
+#ifdef CONFIG_IWLWIFI_LEGACY_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",
+ iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
+ break;
+ default:
+ IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n",
+ iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
+ }
+#endif
+}
+
+static int
+iwl_legacy_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+{
+ int ret;
+
+ BUG_ON(!(cmd->flags & CMD_ASYNC));
+
+ /* An asynchronous command can not expect an SKB to be set. */
+ BUG_ON(cmd->flags & CMD_WANT_SKB);
+
+ /* Assign a generic callback if one is not provided */
+ if (!cmd->callback)
+ cmd->callback = iwl_legacy_generic_cmd_callback;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status))
+ return -EBUSY;
+
+ ret = iwl_legacy_enqueue_hcmd(priv, cmd);
+ if (ret < 0) {
+ IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
+ iwl_legacy_get_cmd_string(cmd->id), ret);
+ return ret;
+ }
+ return 0;
+}
+
+int iwl_legacy_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+{
+ int cmd_idx;
+ int ret;
+
+ BUG_ON(cmd->flags & CMD_ASYNC);
+
+ /* A synchronous command can not have a callback set. */
+ BUG_ON(cmd->callback);
+
+ IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n",
+ iwl_legacy_get_cmd_string(cmd->id));
+ mutex_lock(&priv->sync_cmd_mutex);
+
+ set_bit(STATUS_HCMD_ACTIVE, &priv->status);
+ IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n",
+ iwl_legacy_get_cmd_string(cmd->id));
+
+ cmd_idx = iwl_legacy_enqueue_hcmd(priv, cmd);
+ if (cmd_idx < 0) {
+ ret = cmd_idx;
+ IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
+ iwl_legacy_get_cmd_string(cmd->id), ret);
+ goto out;
+ }
+
+ 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",
+ iwl_legacy_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",
+ iwl_legacy_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",
+ iwl_legacy_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",
+ iwl_legacy_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",
+ iwl_legacy_get_cmd_string(cmd->id));
+ ret = -EIO;
+ goto cancel;
+ }
+
+ ret = 0;
+ goto out;
+
+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_legacy_free_pages(priv, cmd->reply_page);
+ cmd->reply_page = 0;
+ }
+out:
+ mutex_unlock(&priv->sync_cmd_mutex);
+ return ret;
+}
+EXPORT_SYMBOL(iwl_legacy_send_cmd_sync);
+
+int iwl_legacy_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
+{
+ if (cmd->flags & CMD_ASYNC)
+ return iwl_legacy_send_cmd_async(priv, cmd);
+
+ return iwl_legacy_send_cmd_sync(priv, cmd);
+}
+EXPORT_SYMBOL(iwl_legacy_send_cmd);
+
+int
+iwl_legacy_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
+{
+ struct iwl_host_cmd cmd = {
+ .id = id,
+ .len = len,
+ .data = data,
+ };
+
+ return iwl_legacy_send_cmd_sync(priv, &cmd);
+}
+EXPORT_SYMBOL(iwl_legacy_send_cmd_pdu);
+
+int iwl_legacy_send_cmd_pdu_async(struct iwl_priv *priv,
+ u8 id, u16 len, const void *data,
+ void (*callback)(struct iwl_priv *priv,
+ struct iwl_device_cmd *cmd,
+ struct iwl_rx_packet *pkt))
+{
+ struct iwl_host_cmd cmd = {
+ .id = id,
+ .len = len,
+ .data = data,
+ };
+
+ cmd.flags |= CMD_ASYNC;
+ cmd.callback = callback;
+
+ return iwl_legacy_send_cmd_async(priv, &cmd);
+}
+EXPORT_SYMBOL(iwl_legacy_send_cmd_pdu_async);