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path: root/drivers/net/wireless/libertas/cmdresp.c
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Diffstat (limited to 'drivers/net/wireless/libertas/cmdresp.c')
-rw-r--r--drivers/net/wireless/libertas/cmdresp.c353
1 files changed, 0 insertions, 353 deletions
diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c
deleted file mode 100644
index e5442e895..000000000
--- a/drivers/net/wireless/libertas/cmdresp.c
+++ /dev/null
@@ -1,353 +0,0 @@
-/*
- * This file contains the handling of command
- * responses as well as events generated by firmware.
- */
-
-#include <linux/hardirq.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <asm/unaligned.h>
-#include <net/cfg80211.h>
-
-#include "cfg.h"
-#include "cmd.h"
-
-/**
- * lbs_mac_event_disconnected - handles disconnect event. It
- * reports disconnect to upper layer, clean tx/rx packets,
- * reset link state etc.
- *
- * @priv: A pointer to struct lbs_private structure
- * @locally_generated: indicates disconnect was requested locally
- * (usually by userspace)
- *
- * returns: n/a
- */
-void lbs_mac_event_disconnected(struct lbs_private *priv,
- bool locally_generated)
-{
- if (priv->connect_status != LBS_CONNECTED)
- return;
-
- lbs_deb_enter(LBS_DEB_ASSOC);
-
- /*
- * Cisco AP sends EAP failure and de-auth in less than 0.5 ms.
- * It causes problem in the Supplicant
- */
- msleep_interruptible(1000);
-
- if (priv->wdev->iftype == NL80211_IFTYPE_STATION)
- lbs_send_disconnect_notification(priv, locally_generated);
-
- /* report disconnect to upper layer */
- netif_stop_queue(priv->dev);
- netif_carrier_off(priv->dev);
-
- /* Free Tx and Rx packets */
- kfree_skb(priv->currenttxskb);
- priv->currenttxskb = NULL;
- priv->tx_pending_len = 0;
-
- priv->connect_status = LBS_DISCONNECTED;
-
- if (priv->psstate != PS_STATE_FULL_POWER) {
- /* make firmware to exit PS mode */
- lbs_deb_cmd("disconnected, so exit PS mode\n");
- lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, false);
- }
- lbs_deb_leave(LBS_DEB_ASSOC);
-}
-
-int lbs_process_command_response(struct lbs_private *priv, u8 *data, u32 len)
-{
- uint16_t respcmd, curcmd;
- struct cmd_header *resp;
- int ret = 0;
- unsigned long flags;
- uint16_t result;
-
- lbs_deb_enter(LBS_DEB_HOST);
-
- mutex_lock(&priv->lock);
- spin_lock_irqsave(&priv->driver_lock, flags);
-
- if (!priv->cur_cmd) {
- lbs_deb_host("CMD_RESP: cur_cmd is NULL\n");
- ret = -1;
- spin_unlock_irqrestore(&priv->driver_lock, flags);
- goto done;
- }
-
- resp = (void *)data;
- curcmd = le16_to_cpu(priv->cur_cmd->cmdbuf->command);
- respcmd = le16_to_cpu(resp->command);
- result = le16_to_cpu(resp->result);
-
- lbs_deb_cmd("CMD_RESP: response 0x%04x, seq %d, size %d\n",
- respcmd, le16_to_cpu(resp->seqnum), len);
- lbs_deb_hex(LBS_DEB_CMD, "CMD_RESP", (void *) resp, len);
-
- if (resp->seqnum != priv->cur_cmd->cmdbuf->seqnum) {
- netdev_info(priv->dev,
- "Received CMD_RESP with invalid sequence %d (expected %d)\n",
- le16_to_cpu(resp->seqnum),
- le16_to_cpu(priv->cur_cmd->cmdbuf->seqnum));
- spin_unlock_irqrestore(&priv->driver_lock, flags);
- ret = -1;
- goto done;
- }
- if (respcmd != CMD_RET(curcmd) &&
- respcmd != CMD_RET_802_11_ASSOCIATE && curcmd != CMD_802_11_ASSOCIATE) {
- netdev_info(priv->dev, "Invalid CMD_RESP %x to command %x!\n",
- respcmd, curcmd);
- spin_unlock_irqrestore(&priv->driver_lock, flags);
- ret = -1;
- goto done;
- }
-
- if (resp->result == cpu_to_le16(0x0004)) {
- /* 0x0004 means -EAGAIN. Drop the response, let it time out
- and be resubmitted */
- netdev_info(priv->dev,
- "Firmware returns DEFER to command %x. Will let it time out...\n",
- le16_to_cpu(resp->command));
- spin_unlock_irqrestore(&priv->driver_lock, flags);
- ret = -1;
- goto done;
- }
-
- /* Now we got response from FW, cancel the command timer */
- del_timer(&priv->command_timer);
- priv->cmd_timed_out = 0;
-
- if (respcmd == CMD_RET(CMD_802_11_PS_MODE)) {
- struct cmd_ds_802_11_ps_mode *psmode = (void *) &resp[1];
- u16 action = le16_to_cpu(psmode->action);
-
- lbs_deb_host(
- "CMD_RESP: PS_MODE cmd reply result 0x%x, action 0x%x\n",
- result, action);
-
- if (result) {
- lbs_deb_host("CMD_RESP: PS command failed with 0x%x\n",
- result);
- /*
- * We should not re-try enter-ps command in
- * ad-hoc mode. It takes place in
- * lbs_execute_next_command().
- */
- if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR &&
- action == PS_MODE_ACTION_ENTER_PS)
- priv->psmode = LBS802_11POWERMODECAM;
- } else if (action == PS_MODE_ACTION_ENTER_PS) {
- priv->needtowakeup = 0;
- priv->psstate = PS_STATE_AWAKE;
-
- lbs_deb_host("CMD_RESP: ENTER_PS command response\n");
- if (priv->connect_status != LBS_CONNECTED) {
- /*
- * When Deauth Event received before Enter_PS command
- * response, We need to wake up the firmware.
- */
- lbs_deb_host(
- "disconnected, invoking lbs_ps_wakeup\n");
-
- spin_unlock_irqrestore(&priv->driver_lock, flags);
- mutex_unlock(&priv->lock);
- lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS,
- false);
- mutex_lock(&priv->lock);
- spin_lock_irqsave(&priv->driver_lock, flags);
- }
- } else if (action == PS_MODE_ACTION_EXIT_PS) {
- priv->needtowakeup = 0;
- priv->psstate = PS_STATE_FULL_POWER;
- lbs_deb_host("CMD_RESP: EXIT_PS command response\n");
- } else {
- lbs_deb_host("CMD_RESP: PS action 0x%X\n", action);
- }
-
- __lbs_complete_command(priv, priv->cur_cmd, result);
- spin_unlock_irqrestore(&priv->driver_lock, flags);
-
- ret = 0;
- goto done;
- }
-
- /* If the command is not successful, cleanup and return failure */
- if ((result != 0 || !(respcmd & 0x8000))) {
- lbs_deb_host("CMD_RESP: error 0x%04x in command reply 0x%04x\n",
- result, respcmd);
- /*
- * Handling errors here
- */
- switch (respcmd) {
- case CMD_RET(CMD_GET_HW_SPEC):
- case CMD_RET(CMD_802_11_RESET):
- lbs_deb_host("CMD_RESP: reset failed\n");
- break;
-
- }
- __lbs_complete_command(priv, priv->cur_cmd, result);
- spin_unlock_irqrestore(&priv->driver_lock, flags);
-
- ret = -1;
- goto done;
- }
-
- spin_unlock_irqrestore(&priv->driver_lock, flags);
-
- if (priv->cur_cmd && priv->cur_cmd->callback) {
- ret = priv->cur_cmd->callback(priv, priv->cur_cmd->callback_arg,
- resp);
- }
-
- spin_lock_irqsave(&priv->driver_lock, flags);
-
- if (priv->cur_cmd) {
- /* Clean up and Put current command back to cmdfreeq */
- __lbs_complete_command(priv, priv->cur_cmd, result);
- }
- spin_unlock_irqrestore(&priv->driver_lock, flags);
-
-done:
- mutex_unlock(&priv->lock);
- lbs_deb_leave_args(LBS_DEB_HOST, "ret %d", ret);
- return ret;
-}
-
-int lbs_process_event(struct lbs_private *priv, u32 event)
-{
- int ret = 0;
- struct cmd_header cmd;
-
- lbs_deb_enter(LBS_DEB_CMD);
-
- switch (event) {
- case MACREG_INT_CODE_LINK_SENSED:
- lbs_deb_cmd("EVENT: link sensed\n");
- break;
-
- case MACREG_INT_CODE_DEAUTHENTICATED:
- lbs_deb_cmd("EVENT: deauthenticated\n");
- lbs_mac_event_disconnected(priv, false);
- break;
-
- case MACREG_INT_CODE_DISASSOCIATED:
- lbs_deb_cmd("EVENT: disassociated\n");
- lbs_mac_event_disconnected(priv, false);
- break;
-
- case MACREG_INT_CODE_LINK_LOST_NO_SCAN:
- lbs_deb_cmd("EVENT: link lost\n");
- lbs_mac_event_disconnected(priv, true);
- break;
-
- case MACREG_INT_CODE_PS_SLEEP:
- lbs_deb_cmd("EVENT: ps sleep\n");
-
- /* handle unexpected PS SLEEP event */
- if (priv->psstate == PS_STATE_FULL_POWER) {
- lbs_deb_cmd(
- "EVENT: in FULL POWER mode, ignoring PS_SLEEP\n");
- break;
- }
- priv->psstate = PS_STATE_PRE_SLEEP;
-
- lbs_ps_confirm_sleep(priv);
-
- break;
-
- case MACREG_INT_CODE_HOST_AWAKE:
- lbs_deb_cmd("EVENT: host awake\n");
- if (priv->reset_deep_sleep_wakeup)
- priv->reset_deep_sleep_wakeup(priv);
- priv->is_deep_sleep = 0;
- lbs_cmd_async(priv, CMD_802_11_WAKEUP_CONFIRM, &cmd,
- sizeof(cmd));
- priv->is_host_sleep_activated = 0;
- wake_up_interruptible(&priv->host_sleep_q);
- break;
-
- case MACREG_INT_CODE_DEEP_SLEEP_AWAKE:
- if (priv->reset_deep_sleep_wakeup)
- priv->reset_deep_sleep_wakeup(priv);
- lbs_deb_cmd("EVENT: ds awake\n");
- priv->is_deep_sleep = 0;
- priv->wakeup_dev_required = 0;
- wake_up_interruptible(&priv->ds_awake_q);
- break;
-
- case MACREG_INT_CODE_PS_AWAKE:
- lbs_deb_cmd("EVENT: ps awake\n");
- /* handle unexpected PS AWAKE event */
- if (priv->psstate == PS_STATE_FULL_POWER) {
- lbs_deb_cmd(
- "EVENT: In FULL POWER mode - ignore PS AWAKE\n");
- break;
- }
-
- priv->psstate = PS_STATE_AWAKE;
-
- if (priv->needtowakeup) {
- /*
- * wait for the command processing to finish
- * before resuming sending
- * priv->needtowakeup will be set to FALSE
- * in lbs_ps_wakeup()
- */
- lbs_deb_cmd("waking up ...\n");
- lbs_set_ps_mode(priv, PS_MODE_ACTION_EXIT_PS, false);
- }
- break;
-
- case MACREG_INT_CODE_MIC_ERR_UNICAST:
- lbs_deb_cmd("EVENT: UNICAST MIC ERROR\n");
- lbs_send_mic_failureevent(priv, event);
- break;
-
- case MACREG_INT_CODE_MIC_ERR_MULTICAST:
- lbs_deb_cmd("EVENT: MULTICAST MIC ERROR\n");
- lbs_send_mic_failureevent(priv, event);
- break;
-
- case MACREG_INT_CODE_MIB_CHANGED:
- lbs_deb_cmd("EVENT: MIB CHANGED\n");
- break;
- case MACREG_INT_CODE_INIT_DONE:
- lbs_deb_cmd("EVENT: INIT DONE\n");
- break;
- case MACREG_INT_CODE_ADHOC_BCN_LOST:
- lbs_deb_cmd("EVENT: ADHOC beacon lost\n");
- break;
- case MACREG_INT_CODE_RSSI_LOW:
- netdev_alert(priv->dev, "EVENT: rssi low\n");
- break;
- case MACREG_INT_CODE_SNR_LOW:
- netdev_alert(priv->dev, "EVENT: snr low\n");
- break;
- case MACREG_INT_CODE_MAX_FAIL:
- netdev_alert(priv->dev, "EVENT: max fail\n");
- break;
- case MACREG_INT_CODE_RSSI_HIGH:
- netdev_alert(priv->dev, "EVENT: rssi high\n");
- break;
- case MACREG_INT_CODE_SNR_HIGH:
- netdev_alert(priv->dev, "EVENT: snr high\n");
- break;
-
- case MACREG_INT_CODE_MESH_AUTO_STARTED:
- /* Ignore spurious autostart events */
- netdev_info(priv->dev, "EVENT: MESH_AUTO_STARTED (ignoring)\n");
- break;
-
- default:
- netdev_alert(priv->dev, "EVENT: unknown event id %d\n", event);
- break;
- }
-
- lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
- return ret;
-}