summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/mwifiex/util.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/mwifiex/util.c')
-rw-r--r--drivers/net/wireless/mwifiex/util.c202
1 files changed, 202 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/util.c b/drivers/net/wireless/mwifiex/util.c
new file mode 100644
index 000000000000..d41291529bc0
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/util.c
@@ -0,0 +1,202 @@
+/*
+ * Marvell Wireless LAN device driver: utility functions
+ *
+ * Copyright (C) 2011, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "decl.h"
+#include "ioctl.h"
+#include "util.h"
+#include "fw.h"
+#include "main.h"
+#include "wmm.h"
+#include "11n.h"
+
+/*
+ * Firmware initialization complete callback handler.
+ *
+ * This function wakes up the function waiting on the init
+ * wait queue for the firmware initialization to complete.
+ */
+int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter)
+{
+
+ adapter->init_wait_q_woken = true;
+ wake_up_interruptible(&adapter->init_wait_q);
+ return 0;
+}
+
+/*
+ * Firmware shutdown complete callback handler.
+ *
+ * This function sets the hardware status to not ready and wakes up
+ * the function waiting on the init wait queue for the firmware
+ * shutdown to complete.
+ */
+int mwifiex_shutdown_fw_complete(struct mwifiex_adapter *adapter)
+{
+ adapter->hw_status = MWIFIEX_HW_STATUS_NOT_READY;
+ adapter->init_wait_q_woken = true;
+ wake_up_interruptible(&adapter->init_wait_q);
+ return 0;
+}
+
+/*
+ * This function sends init/shutdown command
+ * to firmware.
+ */
+int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
+ u32 func_init_shutdown)
+{
+ u16 cmd;
+
+ if (func_init_shutdown == MWIFIEX_FUNC_INIT) {
+ cmd = HostCmd_CMD_FUNC_INIT;
+ } else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) {
+ cmd = HostCmd_CMD_FUNC_SHUTDOWN;
+ } else {
+ dev_err(priv->adapter->dev, "unsupported parameter\n");
+ return -1;
+ }
+
+ return mwifiex_send_cmd_sync(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL);
+}
+EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw);
+
+/*
+ * IOCTL request handler to set/get debug information.
+ *
+ * This function collates/sets the information from/to different driver
+ * structures.
+ */
+int mwifiex_get_debug_info(struct mwifiex_private *priv,
+ struct mwifiex_debug_info *info)
+{
+ struct mwifiex_adapter *adapter = priv->adapter;
+
+ if (info) {
+ memcpy(info->packets_out,
+ priv->wmm.packets_out,
+ sizeof(priv->wmm.packets_out));
+ info->max_tx_buf_size = (u32) adapter->max_tx_buf_size;
+ info->tx_buf_size = (u32) adapter->tx_buf_size;
+ info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(
+ priv, info->rx_tbl);
+ info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(
+ priv, info->tx_tbl);
+ info->ps_mode = adapter->ps_mode;
+ info->ps_state = adapter->ps_state;
+ info->is_deep_sleep = adapter->is_deep_sleep;
+ info->pm_wakeup_card_req = adapter->pm_wakeup_card_req;
+ info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try;
+ info->is_hs_configured = adapter->is_hs_configured;
+ info->hs_activated = adapter->hs_activated;
+ info->num_cmd_host_to_card_failure
+ = adapter->dbg.num_cmd_host_to_card_failure;
+ info->num_cmd_sleep_cfm_host_to_card_failure
+ = adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure;
+ info->num_tx_host_to_card_failure
+ = adapter->dbg.num_tx_host_to_card_failure;
+ info->num_event_deauth = adapter->dbg.num_event_deauth;
+ info->num_event_disassoc = adapter->dbg.num_event_disassoc;
+ info->num_event_link_lost = adapter->dbg.num_event_link_lost;
+ info->num_cmd_deauth = adapter->dbg.num_cmd_deauth;
+ info->num_cmd_assoc_success =
+ adapter->dbg.num_cmd_assoc_success;
+ info->num_cmd_assoc_failure =
+ adapter->dbg.num_cmd_assoc_failure;
+ info->num_tx_timeout = adapter->dbg.num_tx_timeout;
+ info->num_cmd_timeout = adapter->dbg.num_cmd_timeout;
+ info->timeout_cmd_id = adapter->dbg.timeout_cmd_id;
+ info->timeout_cmd_act = adapter->dbg.timeout_cmd_act;
+ memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id,
+ sizeof(adapter->dbg.last_cmd_id));
+ memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act,
+ sizeof(adapter->dbg.last_cmd_act));
+ info->last_cmd_index = adapter->dbg.last_cmd_index;
+ memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id,
+ sizeof(adapter->dbg.last_cmd_resp_id));
+ info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index;
+ memcpy(info->last_event, adapter->dbg.last_event,
+ sizeof(adapter->dbg.last_event));
+ info->last_event_index = adapter->dbg.last_event_index;
+ info->data_sent = adapter->data_sent;
+ info->cmd_sent = adapter->cmd_sent;
+ info->cmd_resp_received = adapter->cmd_resp_received;
+ }
+
+ return 0;
+}
+
+/*
+ * This function processes the received packet before sending it to the
+ * kernel.
+ *
+ * It extracts the SKB from the received buffer and sends it to kernel.
+ * In case the received buffer does not contain the data in SKB format,
+ * the function creates a blank SKB, fills it with the data from the
+ * received buffer and then sends this new SKB to the kernel.
+ */
+int mwifiex_recv_packet(struct mwifiex_adapter *adapter, struct sk_buff *skb)
+{
+ struct mwifiex_rxinfo *rx_info;
+ struct mwifiex_private *priv;
+
+ if (!skb)
+ return -1;
+
+ rx_info = MWIFIEX_SKB_RXCB(skb);
+ priv = mwifiex_bss_index_to_priv(adapter, rx_info->bss_index);
+ if (!priv)
+ return -1;
+
+ skb->dev = priv->netdev;
+ skb->protocol = eth_type_trans(skb, priv->netdev);
+ skb->ip_summed = CHECKSUM_NONE;
+ priv->stats.rx_bytes += skb->len;
+ priv->stats.rx_packets++;
+ if (in_interrupt())
+ netif_rx(skb);
+ else
+ netif_rx_ni(skb);
+
+ return 0;
+}
+
+/*
+ * IOCTL completion callback handler.
+ *
+ * This function is called when a pending IOCTL is completed.
+ *
+ * If work queue support is enabled, the function wakes up the
+ * corresponding waiting function. Otherwise, it processes the
+ * IOCTL response and frees the response buffer.
+ */
+int mwifiex_complete_cmd(struct mwifiex_adapter *adapter)
+{
+ atomic_dec(&adapter->cmd_pending);
+ dev_dbg(adapter->dev, "cmd completed: status=%d\n",
+ adapter->cmd_wait_q.status);
+
+ adapter->cmd_wait_q.condition = true;
+
+ if (adapter->cmd_wait_q.status == -ETIMEDOUT)
+ dev_err(adapter->dev, "cmd timeout\n");
+ else
+ wake_up_interruptible(&adapter->cmd_wait_q.wait);
+
+ return 0;
+}