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-rw-r--r--drivers/net/wireless/libertas/README26
-rw-r--r--drivers/net/wireless/libertas/cmd.c72
-rw-r--r--drivers/net/wireless/libertas/cmdresp.c12
-rw-r--r--drivers/net/wireless/libertas/debugfs.c46
-rw-r--r--drivers/net/wireless/libertas/decl.h4
-rw-r--r--drivers/net/wireless/libertas/dev.h18
-rw-r--r--drivers/net/wireless/libertas/host.h1
-rw-r--r--drivers/net/wireless/libertas/if_cs.c3
-rw-r--r--drivers/net/wireless/libertas/if_sdio.c56
-rw-r--r--drivers/net/wireless/libertas/if_sdio.h3
-rw-r--r--drivers/net/wireless/libertas/if_spi.c3
-rw-r--r--drivers/net/wireless/libertas/if_usb.c3
-rw-r--r--drivers/net/wireless/libertas/main.c111
-rw-r--r--drivers/net/wireless/libertas/scan.c11
-rw-r--r--drivers/net/wireless/libertas/wext.c185
15 files changed, 533 insertions, 21 deletions
diff --git a/drivers/net/wireless/libertas/README b/drivers/net/wireless/libertas/README
index ab6a2d518af..2726c044430 100644
--- a/drivers/net/wireless/libertas/README
+++ b/drivers/net/wireless/libertas/README
@@ -1,5 +1,5 @@
================================================================================
- README for USB8388
+ README for Libertas
(c) Copyright © 2003-2006, Marvell International Ltd.
All Rights Reserved
@@ -226,4 +226,28 @@ setuserscan
All entries in the scan table (not just the new scan data when keep=1)
will be displayed upon completion by use of the getscantable ioctl.
+========================
+IWCONFIG COMMANDS
+========================
+power period
+
+ This command is used to configure the station in deep sleep mode /
+ auto deep sleep mode.
+
+ The timer is implemented to monitor the activities (command, event,
+ etc.). When an activity is detected station will exit from deep
+ sleep mode automatically and restart the timer. At timer expiry
+ (no activity for defined time period) the deep sleep mode is entered
+ automatically.
+
+ Note: this command is for SDIO interface only.
+
+ Usage:
+ To enable deep sleep mode do:
+ iwconfig wlan0 power period 0
+ To enable auto deep sleep mode with idle time period 5 seconds do:
+ iwconfig wlan0 power period 5
+ To disable deep sleep/auto deep sleep mode do:
+ iwconfig wlan0 power period -1
+
==============================================================================
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 685098148e1..3a3e8947e84 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -17,7 +17,6 @@
static struct cmd_ctrl_node *lbs_get_cmd_ctrl_node(struct lbs_private *priv);
-
/**
* @brief Simple callback that copies response back into command
*
@@ -319,6 +318,60 @@ int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
return 0;
}
+static int lbs_wait_for_ds_awake(struct lbs_private *priv)
+{
+ int ret = 0;
+
+ lbs_deb_enter(LBS_DEB_CMD);
+
+ if (priv->is_deep_sleep) {
+ if (!wait_event_interruptible_timeout(priv->ds_awake_q,
+ !priv->is_deep_sleep, (10 * HZ))) {
+ lbs_pr_err("ds_awake_q: timer expired\n");
+ ret = -1;
+ }
+ }
+
+ lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
+ return ret;
+}
+
+int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep)
+{
+ int ret = 0;
+
+ lbs_deb_enter(LBS_DEB_CMD);
+
+ if (deep_sleep) {
+ if (priv->is_deep_sleep != 1) {
+ lbs_deb_cmd("deep sleep: sleep\n");
+ BUG_ON(!priv->enter_deep_sleep);
+ ret = priv->enter_deep_sleep(priv);
+ if (!ret) {
+ netif_stop_queue(priv->dev);
+ netif_carrier_off(priv->dev);
+ }
+ } else {
+ lbs_pr_err("deep sleep: already enabled\n");
+ }
+ } else {
+ if (priv->is_deep_sleep) {
+ lbs_deb_cmd("deep sleep: wakeup\n");
+ BUG_ON(!priv->exit_deep_sleep);
+ ret = priv->exit_deep_sleep(priv);
+ if (!ret) {
+ ret = lbs_wait_for_ds_awake(priv);
+ if (ret)
+ lbs_pr_err("deep sleep: wakeup"
+ "failed\n");
+ }
+ }
+ }
+
+ lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
+ return ret;
+}
+
int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
struct assoc_request *assoc)
{
@@ -1242,8 +1295,17 @@ static void lbs_submit_command(struct lbs_private *priv,
timeo = HZ/4;
}
- /* Setup the timer after transmit command */
- mod_timer(&priv->command_timer, jiffies + timeo);
+ if (command == CMD_802_11_DEEP_SLEEP) {
+ if (priv->is_auto_deep_sleep_enabled) {
+ priv->wakeup_dev_required = 1;
+ priv->dnld_sent = 0;
+ }
+ priv->is_deep_sleep = 1;
+ lbs_complete_command(priv, cmdnode, 0);
+ } else {
+ /* Setup the timer after transmit command */
+ mod_timer(&priv->command_timer, jiffies + timeo);
+ }
lbs_deb_leave(LBS_DEB_HOST);
}
@@ -1505,6 +1567,10 @@ int lbs_prepare_and_send_command(struct lbs_private *priv,
case CMD_802_11_BEACON_CTRL:
ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
break;
+ case CMD_802_11_DEEP_SLEEP:
+ cmdptr->command = cpu_to_le16(CMD_802_11_DEEP_SLEEP);
+ cmdptr->size = cpu_to_le16(S_DS_GEN);
+ break;
default:
lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
ret = -1;
diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c
index c42d3faa266..47d2b1909d6 100644
--- a/drivers/net/wireless/libertas/cmdresp.c
+++ b/drivers/net/wireless/libertas/cmdresp.c
@@ -504,9 +504,21 @@ int lbs_process_event(struct lbs_private *priv, u32 event)
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_send_confirmwake(priv);
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 */
diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index 893a55ca344..8a7e9319c9e 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -117,6 +117,11 @@ static ssize_t lbs_sleepparams_write(struct file *file,
if (!buf)
return -ENOMEM;
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+
buf_size = min(count, len - 1);
if (copy_from_user(buf, user_buf, buf_size)) {
ret = -EFAULT;
@@ -157,6 +162,11 @@ static ssize_t lbs_sleepparams_read(struct file *file, char __user *userbuf,
if (!buf)
return -ENOMEM;
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+
ret = lbs_cmd_802_11_sleep_params(priv, CMD_ACT_GET, &sp);
if (ret)
goto out_unlock;
@@ -223,6 +233,9 @@ static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask,
u8 freq;
int events = 0;
+ if (!lbs_is_cmd_allowed(priv))
+ return -EBUSY;
+
buf = (char *)get_zeroed_page(GFP_KERNEL);
if (!buf)
return -ENOMEM;
@@ -275,6 +288,9 @@ static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask,
char *buf;
int ret;
+ if (!lbs_is_cmd_allowed(priv))
+ return -EBUSY;
+
buf = (char *)get_zeroed_page(GFP_KERNEL);
if (!buf)
return -ENOMEM;
@@ -444,6 +460,11 @@ static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
if (!buf)
return -ENOMEM;
+ if (!lbs_is_cmd_allowed(priv)) {
+ free_page(addr);
+ return -EBUSY;
+ }
+
offval.offset = priv->mac_offset;
offval.value = 0;
@@ -496,6 +517,11 @@ static ssize_t lbs_wrmac_write(struct file *file,
if (!buf)
return -ENOMEM;
+ if (!lbs_is_cmd_allowed(priv)) {
+ res = -EBUSY;
+ goto out_unlock;
+ }
+
buf_size = min(count, len - 1);
if (copy_from_user(buf, userbuf, buf_size)) {
res = -EFAULT;
@@ -532,6 +558,11 @@ static ssize_t lbs_rdbbp_read(struct file *file, char __user *userbuf,
if (!buf)
return -ENOMEM;
+ if (!lbs_is_cmd_allowed(priv)) {
+ free_page(addr);
+ return -EBUSY;
+ }
+
offval.offset = priv->bbp_offset;
offval.value = 0;
@@ -585,6 +616,11 @@ static ssize_t lbs_wrbbp_write(struct file *file,
if (!buf)
return -ENOMEM;
+ if (!lbs_is_cmd_allowed(priv)) {
+ res = -EBUSY;
+ goto out_unlock;
+ }
+
buf_size = min(count, len - 1);
if (copy_from_user(buf, userbuf, buf_size)) {
res = -EFAULT;
@@ -621,6 +657,11 @@ static ssize_t lbs_rdrf_read(struct file *file, char __user *userbuf,
if (!buf)
return -ENOMEM;
+ if (!lbs_is_cmd_allowed(priv)) {
+ free_page(addr);
+ return -EBUSY;
+ }
+
offval.offset = priv->rf_offset;
offval.value = 0;
@@ -674,6 +715,11 @@ static ssize_t lbs_wrrf_write(struct file *file,
if (!buf)
return -ENOMEM;
+ if (!lbs_is_cmd_allowed(priv)) {
+ res = -EBUSY;
+ goto out_unlock;
+ }
+
buf_size = min(count, len - 1);
if (copy_from_user(buf, userbuf, buf_size)) {
res = -EFAULT;
diff --git a/drivers/net/wireless/libertas/decl.h b/drivers/net/wireless/libertas/decl.h
index 8b15380ae6e..44f0b248ace 100644
--- a/drivers/net/wireless/libertas/decl.h
+++ b/drivers/net/wireless/libertas/decl.h
@@ -33,6 +33,10 @@ int lbs_execute_next_command(struct lbs_private *priv);
int lbs_process_event(struct lbs_private *priv, u32 event);
void lbs_queue_event(struct lbs_private *priv, u32 event);
void lbs_notify_command_response(struct lbs_private *priv, u8 resp_idx);
+int lbs_set_deep_sleep(struct lbs_private *priv, int deep_sleep);
+int lbs_is_cmd_allowed(struct lbs_private *priv);
+int lbs_enter_auto_deep_sleep(struct lbs_private *priv);
+int lbs_exit_auto_deep_sleep(struct lbs_private *priv);
u32 lbs_fw_index_to_data_rate(u8 index);
u8 lbs_data_rate_to_fw_index(u32 rate);
diff --git a/drivers/net/wireless/libertas/dev.h b/drivers/net/wireless/libertas/dev.h
index d3b69a4b4b5..0018df14fad 100644
--- a/drivers/net/wireless/libertas/dev.h
+++ b/drivers/net/wireless/libertas/dev.h
@@ -129,6 +129,20 @@ struct lbs_private {
u32 bbp_offset;
u32 rf_offset;
+ /** Deep sleep flag */
+ int is_deep_sleep;
+ /** Auto deep sleep enabled flag */
+ int is_auto_deep_sleep_enabled;
+ /** Device wakeup required flag */
+ int wakeup_dev_required;
+ /** Auto deep sleep flag*/
+ int is_activity_detected;
+ /** Auto deep sleep timeout (in miliseconds) */
+ int auto_deep_sleep_timeout;
+
+ /** Deep sleep wait queue */
+ wait_queue_head_t ds_awake_q;
+
/* Download sent:
bit0 1/0=data_sent/data_tx_done,
bit1 1/0=cmd_sent/cmd_tx_done,
@@ -154,6 +168,9 @@ struct lbs_private {
/** Hardware access */
int (*hw_host_to_card) (struct lbs_private *priv, u8 type, u8 *payload, u16 nb);
void (*reset_card) (struct lbs_private *priv);
+ int (*enter_deep_sleep) (struct lbs_private *priv);
+ int (*exit_deep_sleep) (struct lbs_private *priv);
+ int (*reset_deep_sleep_wakeup) (struct lbs_private *priv);
/* Wake On LAN */
uint32_t wol_criteria;
@@ -204,6 +221,7 @@ struct lbs_private {
/** Timers */
struct timer_list command_timer;
+ struct timer_list auto_deepsleep_timer;
int nr_retries;
int cmd_timed_out;
diff --git a/drivers/net/wireless/libertas/host.h b/drivers/net/wireless/libertas/host.h
index fe8f0cb737b..c055daabea1 100644
--- a/drivers/net/wireless/libertas/host.h
+++ b/drivers/net/wireless/libertas/host.h
@@ -57,6 +57,7 @@
#define CMD_802_11_ENABLE_RSN 0x002f
#define CMD_802_11_SET_AFC 0x003c
#define CMD_802_11_GET_AFC 0x003d
+#define CMD_802_11_DEEP_SLEEP 0x003e
#define CMD_802_11_AD_HOC_STOP 0x0040
#define CMD_802_11_HOST_SLEEP_CFG 0x0043
#define CMD_802_11_WAKEUP_CONFIRM 0x0044
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index 62381768f2d..465742f19ec 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -946,6 +946,9 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
card->priv = priv;
priv->card = card;
priv->hw_host_to_card = if_cs_host_to_card;
+ priv->enter_deep_sleep = NULL;
+ priv->exit_deep_sleep = NULL;
+ priv->reset_deep_sleep_wakeup = NULL;
priv->fw_ready = 1;
/* Now actually get the IRQ */
diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
index 485a8d40652..9716728a33c 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -831,6 +831,58 @@ out:
return ret;
}
+static int if_sdio_enter_deep_sleep(struct lbs_private *priv)
+{
+ int ret = -1;
+ struct cmd_header cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+
+ lbs_deb_sdio("send DEEP_SLEEP command\n");
+ ret = __lbs_cmd(priv, CMD_802_11_DEEP_SLEEP, &cmd, sizeof(cmd),
+ lbs_cmd_copyback, (unsigned long) &cmd);
+ if (ret)
+ lbs_pr_err("DEEP_SLEEP cmd failed\n");
+
+ mdelay(200);
+ return ret;
+}
+
+static int if_sdio_exit_deep_sleep(struct lbs_private *priv)
+{
+ struct if_sdio_card *card = priv->card;
+ int ret = -1;
+
+ lbs_deb_enter(LBS_DEB_SDIO);
+ sdio_claim_host(card->func);
+
+ sdio_writeb(card->func, HOST_POWER_UP, CONFIGURATION_REG, &ret);
+ if (ret)
+ lbs_pr_err("sdio_writeb failed!\n");
+
+ sdio_release_host(card->func);
+ lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);
+ return ret;
+}
+
+static int if_sdio_reset_deep_sleep_wakeup(struct lbs_private *priv)
+{
+ struct if_sdio_card *card = priv->card;
+ int ret = -1;
+
+ lbs_deb_enter(LBS_DEB_SDIO);
+ sdio_claim_host(card->func);
+
+ sdio_writeb(card->func, 0, CONFIGURATION_REG, &ret);
+ if (ret)
+ lbs_pr_err("sdio_writeb failed!\n");
+
+ sdio_release_host(card->func);
+ lbs_deb_leave_args(LBS_DEB_SDIO, "ret %d", ret);
+ return ret;
+
+}
+
/*******************************************************************/
/* SDIO callbacks */
/*******************************************************************/
@@ -859,6 +911,7 @@ static void if_sdio_interrupt(struct sdio_func *func)
* Ignore the define name, this really means the card has
* successfully received the command.
*/
+ card->priv->is_activity_detected = 1;
if (cause & IF_SDIO_H_INT_DNLD)
lbs_host_to_card_done(card->priv);
@@ -998,6 +1051,9 @@ static int if_sdio_probe(struct sdio_func *func,
priv->card = card;
priv->hw_host_to_card = if_sdio_host_to_card;
+ priv->enter_deep_sleep = if_sdio_enter_deep_sleep;
+ priv->exit_deep_sleep = if_sdio_exit_deep_sleep;
+ priv->reset_deep_sleep_wakeup = if_sdio_reset_deep_sleep_wakeup;
priv->fw_ready = 1;
diff --git a/drivers/net/wireless/libertas/if_sdio.h b/drivers/net/wireless/libertas/if_sdio.h
index 60c9b2fcef0..12179c1dc9c 100644
--- a/drivers/net/wireless/libertas/if_sdio.h
+++ b/drivers/net/wireless/libertas/if_sdio.h
@@ -51,5 +51,6 @@
#define IF_SDIO_EVENT 0x80fc
#define IF_SDIO_BLOCK_SIZE 256
-
+#define CONFIGURATION_REG 0x03
+#define HOST_POWER_UP (0x1U << 1)
#endif
diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
index cb8be8d7abc..06df2e174b5 100644
--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -1117,6 +1117,9 @@ static int __devinit if_spi_probe(struct spi_device *spi)
card->priv = priv;
priv->card = card;
priv->hw_host_to_card = if_spi_host_to_card;
+ priv->enter_deep_sleep = NULL;
+ priv->exit_deep_sleep = NULL;
+ priv->reset_deep_sleep_wakeup = NULL;
priv->fw_ready = 1;
/* Initialize interrupt handling stuff. */
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index 92bc8c5f1ca..a8262dea9b1 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -300,6 +300,9 @@ static int if_usb_probe(struct usb_interface *intf,
cardp->priv->fw_ready = 1;
priv->hw_host_to_card = if_usb_host_to_card;
+ priv->enter_deep_sleep = NULL;
+ priv->exit_deep_sleep = NULL;
+ priv->reset_deep_sleep_wakeup = NULL;
#ifdef CONFIG_OLPC
if (machine_is_olpc())
priv->reset_card = if_usb_reset_olpc_card;
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index 87b4e497faa..9b2a9174a01 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -574,8 +574,10 @@ void lbs_host_to_card_done(struct lbs_private *priv)
priv->dnld_sent = DNLD_RES_RECEIVED;
/* Wake main thread if commands are pending */
- if (!priv->cur_cmd || priv->tx_pending_len > 0)
- wake_up_interruptible(&priv->waitq);
+ if (!priv->cur_cmd || priv->tx_pending_len > 0) {
+ if (!priv->wakeup_dev_required)
+ wake_up_interruptible(&priv->waitq);
+ }
spin_unlock_irqrestore(&priv->driver_lock, flags);
lbs_deb_leave(LBS_DEB_THREAD);
@@ -770,7 +772,8 @@ static int lbs_thread(void *data)
shouldsleep = 0; /* We have a command response */
else if (priv->cur_cmd)
shouldsleep = 1; /* Can't send a command; one already running */
- else if (!list_empty(&priv->cmdpendingq))
+ else if (!list_empty(&priv->cmdpendingq) &&
+ !(priv->wakeup_dev_required))
shouldsleep = 0; /* We have a command to send */
else if (__kfifo_len(priv->event_fifo))
shouldsleep = 0; /* We have an event to process */
@@ -822,6 +825,26 @@ static int lbs_thread(void *data)
}
spin_unlock_irq(&priv->driver_lock);
+ /* Process hardware events, e.g. card removed, link lost */
+ spin_lock_irq(&priv->driver_lock);
+ while (__kfifo_len(priv->event_fifo)) {
+ u32 event;
+ __kfifo_get(priv->event_fifo, (unsigned char *) &event,
+ sizeof(event));
+ spin_unlock_irq(&priv->driver_lock);
+ lbs_process_event(priv, event);
+ spin_lock_irq(&priv->driver_lock);
+ }
+ spin_unlock_irq(&priv->driver_lock);
+
+ if (priv->wakeup_dev_required) {
+ lbs_deb_thread("Waking up device...\n");
+ /* Wake up device */
+ if (priv->exit_deep_sleep(priv))
+ lbs_deb_thread("Wakeup device failed\n");
+ continue;
+ }
+
/* command timeout stuff */
if (priv->cmd_timed_out && priv->cur_cmd) {
struct cmd_ctrl_node *cmdnode = priv->cur_cmd;
@@ -849,18 +872,7 @@ static int lbs_thread(void *data)
}
priv->cmd_timed_out = 0;
- /* Process hardware events, e.g. card removed, link lost */
- spin_lock_irq(&priv->driver_lock);
- while (__kfifo_len(priv->event_fifo)) {
- u32 event;
- __kfifo_get(priv->event_fifo, (unsigned char *) &event,
- sizeof(event));
- spin_unlock_irq(&priv->driver_lock);
- lbs_process_event(priv, event);
- spin_lock_irq(&priv->driver_lock);
- }
- spin_unlock_irq(&priv->driver_lock);
if (!priv->fw_ready)
continue;
@@ -894,6 +906,9 @@ static int lbs_thread(void *data)
(priv->psstate == PS_STATE_PRE_SLEEP))
continue;
+ if (priv->is_deep_sleep)
+ continue;
+
/* Execute the next command */
if (!priv->dnld_sent && !priv->cur_cmd)
lbs_execute_next_command(priv);
@@ -928,6 +943,7 @@ static int lbs_thread(void *data)
}
del_timer(&priv->command_timer);
+ del_timer(&priv->auto_deepsleep_timer);
wake_up_all(&priv->cmd_pending);
lbs_deb_leave(LBS_DEB_THREAD);
@@ -1050,6 +1066,60 @@ out:
lbs_deb_leave(LBS_DEB_CMD);
}
+/**
+ * This function put the device back to deep sleep mode when timer expires
+ * and no activity (command, event, data etc.) is detected.
+ */
+static void auto_deepsleep_timer_fn(unsigned long data)
+{
+ struct lbs_private *priv = (struct lbs_private *)data;
+ int ret;
+
+ lbs_deb_enter(LBS_DEB_CMD);
+
+ if (priv->is_activity_detected) {
+ priv->is_activity_detected = 0;
+ } else {
+ if (priv->is_auto_deep_sleep_enabled &&
+ (!priv->wakeup_dev_required) &&
+ (priv->connect_status != LBS_CONNECTED)) {
+ lbs_deb_main("Entering auto deep sleep mode...\n");
+ ret = lbs_prepare_and_send_command(priv,
+ CMD_802_11_DEEP_SLEEP, 0,
+ 0, 0, NULL);
+ }
+ }
+ mod_timer(&priv->auto_deepsleep_timer , jiffies +
+ (priv->auto_deep_sleep_timeout * HZ)/1000);
+ lbs_deb_leave(LBS_DEB_CMD);
+}
+
+int lbs_enter_auto_deep_sleep(struct lbs_private *priv)
+{
+ lbs_deb_enter(LBS_DEB_SDIO);
+
+ priv->is_auto_deep_sleep_enabled = 1;
+ if (priv->is_deep_sleep)
+ priv->wakeup_dev_required = 1;
+ mod_timer(&priv->auto_deepsleep_timer ,
+ jiffies + (priv->auto_deep_sleep_timeout * HZ)/1000);
+
+ lbs_deb_leave(LBS_DEB_SDIO);
+ return 0;
+}
+
+int lbs_exit_auto_deep_sleep(struct lbs_private *priv)
+{
+ lbs_deb_enter(LBS_DEB_SDIO);
+
+ priv->is_auto_deep_sleep_enabled = 0;
+ priv->auto_deep_sleep_timeout = 0;
+ del_timer(&priv->auto_deepsleep_timer);
+
+ lbs_deb_leave(LBS_DEB_SDIO);
+ return 0;
+}
+
static void lbs_sync_channel_worker(struct work_struct *work)
{
struct lbs_private *priv = container_of(work, struct lbs_private,
@@ -1099,11 +1169,17 @@ static int lbs_init_adapter(struct lbs_private *priv)
priv->capability = WLAN_CAPABILITY_SHORT_PREAMBLE;
priv->psmode = LBS802_11POWERMODECAM;
priv->psstate = PS_STATE_FULL_POWER;
+ priv->is_deep_sleep = 0;
+ priv->is_auto_deep_sleep_enabled = 0;
+ priv->wakeup_dev_required = 0;
+ init_waitqueue_head(&priv->ds_awake_q);
mutex_init(&priv->lock);
setup_timer(&priv->command_timer, command_timer_fn,
(unsigned long)priv);
+ setup_timer(&priv->auto_deepsleep_timer, auto_deepsleep_timer_fn,
+ (unsigned long)priv);
INIT_LIST_HEAD(&priv->cmdfreeq);
INIT_LIST_HEAD(&priv->cmdpendingq);
@@ -1142,6 +1218,7 @@ static void lbs_free_adapter(struct lbs_private *priv)
if (priv->event_fifo)
kfifo_free(priv->event_fifo);
del_timer(&priv->command_timer);
+ del_timer(&priv->auto_deepsleep_timer);
kfree(priv->networks);
priv->networks = NULL;
@@ -1272,6 +1349,11 @@ void lbs_remove_card(struct lbs_private *priv)
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(priv->dev, SIOCGIWAP, &wrqu, NULL);
+ if (priv->is_deep_sleep) {
+ priv->is_deep_sleep = 0;
+ wake_up_interruptible(&priv->ds_awake_q);
+ }
+
/* Stop the thread servicing the interrupts */
priv->surpriseremoved = 1;
kthread_stop(priv->main_thread);
@@ -1392,6 +1474,7 @@ void lbs_stop_card(struct lbs_private *priv)
/* Delete the timeout of the currently processing command */
del_timer_sync(&priv->command_timer);
+ del_timer_sync(&priv->auto_deepsleep_timer);
/* Flush pending command nodes */
spin_lock_irqsave(&priv->driver_lock, flags);
diff --git a/drivers/net/wireless/libertas/scan.c b/drivers/net/wireless/libertas/scan.c
index 6c95af3023c..e468e155e8b 100644
--- a/drivers/net/wireless/libertas/scan.c
+++ b/drivers/net/wireless/libertas/scan.c
@@ -950,6 +950,11 @@ int lbs_set_scan(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
if (!priv->radio_on) {
ret = -EINVAL;
goto out;
@@ -1017,6 +1022,12 @@ int lbs_get_scan(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ err = -EBUSY;
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", err);
+ return err;
+ }
+
/* iwlist should wait until the current scan is finished */
if (priv->scan_channel)
return -EAGAIN;
diff --git a/drivers/net/wireless/libertas/wext.c b/drivers/net/wireless/libertas/wext.c
index be837a0d251..38a451edb70 100644
--- a/drivers/net/wireless/libertas/wext.c
+++ b/drivers/net/wireless/libertas/wext.c
@@ -45,6 +45,31 @@ static inline void lbs_cancel_association_work(struct lbs_private *priv)
priv->pending_assoc_req = NULL;
}
+/**
+ * @brief This function checks if the command is allowed.
+ *
+ * @param priv A pointer to lbs_private structure
+ * @return allowed or not allowed.
+ */
+
+int lbs_is_cmd_allowed(struct lbs_private *priv)
+{
+ int ret = 1;
+
+ lbs_deb_enter(LBS_DEB_WEXT);
+
+ if (!priv->is_auto_deep_sleep_enabled) {
+ if (priv->is_deep_sleep) {
+ lbs_deb_wext("IOCTLS called when station"
+ "is in deep sleep\n");
+ ret = 0;
+ }
+ }
+
+ lbs_deb_leave(LBS_DEB_WEXT);
+ return ret;
+}
+
/**
* @brief Find the channel frequency power info with specific channel
@@ -168,6 +193,11 @@ static int lbs_get_freq(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ lbs_deb_leave(LBS_DEB_WEXT);
+ return -EBUSY;
+ }
+
cfp = lbs_find_cfp_by_band_and_channel(priv, 0,
priv->curbssparams.channel);
@@ -278,6 +308,12 @@ static int lbs_set_rts(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
+ return ret;
+ }
+
if (vwrq->disabled)
val = MRVDRV_RTS_MAX_VALUE;
@@ -299,6 +335,11 @@ static int lbs_get_rts(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
ret = lbs_get_snmp_mib(priv, SNMP_MIB_OID_RTS_THRESHOLD, &val);
if (ret)
goto out;
@@ -321,6 +362,12 @@ static int lbs_set_frag(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
+ return ret;
+ }
+
if (vwrq->disabled)
val = MRVDRV_FRAG_MAX_VALUE;
@@ -342,6 +389,11 @@ static int lbs_get_frag(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
ret = lbs_get_snmp_mib(priv, SNMP_MIB_OID_FRAG_THRESHOLD, &val);
if (ret)
goto out;
@@ -391,6 +443,11 @@ static int lbs_get_txpow(struct net_device *dev,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
if (!priv->radio_on) {
lbs_deb_wext("tx power off\n");
vwrq->value = 0;
@@ -424,6 +481,11 @@ static int lbs_set_retry(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
if ((vwrq->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
return -EOPNOTSUPP;
@@ -472,6 +534,11 @@ static int lbs_get_retry(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
vwrq->disabled = 0;
if (vwrq->flags & IW_RETRY_LONG) {
@@ -709,6 +776,7 @@ static int lbs_set_power(struct net_device *dev, struct iw_request_info *info,
struct iw_param *vwrq, char *extra)
{
struct lbs_private *priv = dev->ml_priv;
+ int ret = 0;
lbs_deb_enter(LBS_DEB_WEXT);
@@ -737,8 +805,54 @@ static int lbs_set_power(struct net_device *dev, struct iw_request_info *info,
"setting power timeout is not supported\n");
return -EINVAL;
} else if ((vwrq->flags & IW_POWER_TYPE) == IW_POWER_PERIOD) {
- lbs_deb_wext("setting power period not supported\n");
- return -EINVAL;
+ vwrq->value = vwrq->value / 1000;
+ if (!priv->enter_deep_sleep) {
+ lbs_pr_err("deep sleep feature is not implemented "
+ "for this interface driver\n");
+ return -EINVAL;
+ }
+
+ if (priv->connect_status == LBS_CONNECTED) {
+ if ((priv->is_auto_deep_sleep_enabled) &&
+ (vwrq->value == -1000)) {
+ lbs_exit_auto_deep_sleep(priv);
+ return 0;
+ } else {
+ lbs_pr_err("can't use deep sleep cmd in "
+ "connected state\n");
+ return -EINVAL;
+ }
+ }
+
+ if ((vwrq->value < 0) && (vwrq->value != -1000)) {
+ lbs_pr_err("unknown option\n");
+ return -EINVAL;
+ }
+
+ if (vwrq->value > 0) {
+ if (!priv->is_auto_deep_sleep_enabled) {
+ priv->is_activity_detected = 0;
+ priv->auto_deep_sleep_timeout = vwrq->value;
+ lbs_enter_auto_deep_sleep(priv);
+ } else {
+ priv->auto_deep_sleep_timeout = vwrq->value;
+ lbs_deb_debugfs("auto deep sleep: "
+ "already enabled\n");
+ }
+ return 0;
+ } else {
+ if (priv->is_auto_deep_sleep_enabled) {
+ lbs_exit_auto_deep_sleep(priv);
+ /* Try to exit deep sleep if auto */
+ /*deep sleep disabled */
+ ret = lbs_set_deep_sleep(priv, 0);
+ }
+ if (vwrq->value == 0)
+ ret = lbs_set_deep_sleep(priv, 1);
+ else if (vwrq->value == -1000)
+ ret = lbs_set_deep_sleep(priv, 0);
+ return ret;
+ }
}
if (priv->psmode != LBS802_11POWERMODECAM) {
@@ -752,6 +866,7 @@ static int lbs_set_power(struct net_device *dev, struct iw_request_info *info,
}
lbs_deb_leave(LBS_DEB_WEXT);
+
return 0;
}
@@ -792,6 +907,9 @@ static struct iw_statistics *lbs_get_wireless_stats(struct net_device *dev)
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv))
+ return NULL;
+
priv->wstats.status = priv->mode;
/* If we're not associated, all quality values are meaningless */
@@ -892,6 +1010,12 @@ static int lbs_set_freq(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
+ return ret;
+ }
+
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
@@ -1000,6 +1124,12 @@ static int lbs_set_rate(struct net_device *dev, struct iw_request_info *info,
u8 rates[MAX_RATES + 1];
lbs_deb_enter(LBS_DEB_WEXT);
+
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
lbs_deb_wext("vwrq->value %d\n", vwrq->value);
lbs_deb_wext("vwrq->fixed %d\n", vwrq->fixed);
@@ -1058,6 +1188,11 @@ static int lbs_get_rate(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ lbs_deb_leave(LBS_DEB_WEXT);
+ return -EBUSY;
+ }
+
if (priv->connect_status == LBS_CONNECTED) {
vwrq->value = priv->cur_rate * 500000;
@@ -1084,6 +1219,11 @@ static int lbs_set_mode(struct net_device *dev,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
if ( (*uwrq != IW_MODE_ADHOC)
&& (*uwrq != IW_MODE_INFRA)
&& (*uwrq != IW_MODE_AUTO)) {
@@ -1325,6 +1465,12 @@ static int lbs_set_encode(struct net_device *dev,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
+ return ret;
+ }
+
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
@@ -1508,6 +1654,12 @@ static int lbs_set_encodeext(struct net_device *dev,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
+ return ret;
+ }
+
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
@@ -1720,6 +1872,12 @@ static int lbs_set_auth(struct net_device *dev,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
+ return ret;
+ }
+
mutex_lock(&priv->lock);
assoc_req = lbs_get_association_request(priv);
if (!assoc_req) {
@@ -1822,6 +1980,12 @@ static int lbs_get_auth(struct net_device *dev,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
+ return ret;
+ }
+
switch (dwrq->flags & IW_AUTH_INDEX) {
case IW_AUTH_KEY_MGMT:
dwrq->value = priv->secinfo.key_mgmt;
@@ -1864,6 +2028,11 @@ static int lbs_set_txpow(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ goto out;
+ }
+
if (vwrq->disabled) {
lbs_set_radio(priv, RADIO_PREAMBLE_AUTO, 0);
goto out;
@@ -1983,6 +2152,12 @@ static int lbs_set_essid(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
+ return ret;
+ }
+
if (!priv->radio_on) {
ret = -EINVAL;
goto out;
@@ -2110,6 +2285,12 @@ static int lbs_set_wap(struct net_device *dev, struct iw_request_info *info,
lbs_deb_enter(LBS_DEB_WEXT);
+ if (!lbs_is_cmd_allowed(priv)) {
+ ret = -EBUSY;
+ lbs_deb_leave_args(LBS_DEB_WEXT, "ret %d", ret);
+ return ret;
+ }
+
if (!priv->radio_on)
return -EINVAL;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-07 06:33:16 +0000