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mwifiex: cancel pending commands during host sleep 

Sometimes we may end up downloading other commands when host
sleep is configured. This patch makes sure that pending
commands are cancelled and we stop queueing further commands
during host sleep.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Amitkumar Karwar 2014-03-25 19:01:20 -07:00 committed by John W. Linville
parent b49f639f84
commit c0dbba6688
6 changed files with 13 additions and 0 deletions
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5
drivers/net/wireless/mwifiex/cmdevt.c
View File

@ -509,6 +509,11 @@ int mwifiex_send_cmd(struct mwifiex_private *priv, u16 cmd_no,
return -1;
}
if (adapter->hs_enabling && cmd_no != HostCmd_CMD_802_11_HS_CFG_ENH) {
dev_err(adapter->dev, "PREP_CMD: host entering sleep state\n");
return -1;
}
if (adapter->surprise_removed) {
dev_err(adapter->dev, "PREP_CMD: card is removed\n");
return -1;

1
drivers/net/wireless/mwifiex/main.h
View File

@ -774,6 +774,7 @@ struct mwifiex_adapter {
u16 hs_activate_wait_q_woken;
wait_queue_head_t hs_activate_wait_q;
bool is_suspended;
bool hs_enabling;
u8 event_body[MAX_EVENT_SIZE];
u32 hw_dot_11n_dev_cap;
u8 hw_dev_mcs_support;

1
drivers/net/wireless/mwifiex/pcie.c
View File

@ -120,6 +120,7 @@ static int mwifiex_pcie_suspend(struct device *dev)
/* Indicate device suspended */
adapter->is_suspended = true;
adapter->hs_enabling = false;
return 0;
}

2
drivers/net/wireless/mwifiex/sdio.c
View File

@ -237,6 +237,7 @@ static int mwifiex_sdio_suspend(struct device *dev)
/* Enable the Host Sleep */
if (!mwifiex_enable_hs(adapter)) {
dev_err(adapter->dev, "cmd: failed to suspend\n");
adapter->hs_enabling = false;
return -EFAULT;
}
@ -245,6 +246,7 @@ static int mwifiex_sdio_suspend(struct device *dev)
/* Indicate device suspended */
adapter->is_suspended = true;
adapter->hs_enabling = false;
return ret;
}

3
drivers/net/wireless/mwifiex/sta_ioctl.c
View File

@ -508,6 +508,9 @@ int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
hscfg.is_invoke_hostcmd = true;
adapter->hs_enabling = true;
mwifiex_cancel_all_pending_cmd(adapter);
if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
MWIFIEX_BSS_ROLE_STA),
HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,

1
drivers/net/wireless/mwifiex/usb.c
View File

@ -459,6 +459,7 @@ static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message)
* 'suspended' state and a 'disconnect' one.
*/
adapter->is_suspended = true;
adapter->hs_enabling = false;
if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb)
usb_kill_urb(card->rx_cmd.urb);