static int mwifiex_pcie_suspend(struct pci_dev *pdev, pm_message_t state)
{
struct mwifiex_adapter *adapter;
struct pcie_service_card *card;
int hs_actived, i;
if (pdev) {
card = (struct pcie_service_card *) pci_get_drvdata(pdev);
if (!card || !card->adapter) {
pr_err("Card or adapter structure is not valid\n");
return 0;
}
} else {
pr_err("PCIE device is not specified\n");
return 0;
}
adapter = card->adapter;
hs_actived = mwifiex_enable_hs(adapter);
adapter->is_suspended = true;
for (i = 0; i < adapter->priv_num; i++)
netif_carrier_off(adapter->priv[i]->netdev);
return 0;
}
/* Proc hscfg file write handler
* This function can be used to configure the host sleep parameters.
*/
static ssize_t
mwifiex_hscfg_write(struct file *file, const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct mwifiex_private *priv = (void *)file->private_data;
unsigned long addr = get_zeroed_page(GFP_KERNEL);
char *buf = (char *)addr;
size_t buf_size = min_t(size_t, count, PAGE_SIZE - 1);
int ret, arg_num;
struct mwifiex_ds_hs_cfg hscfg;
int conditions = HS_CFG_COND_DEF;
u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF;
if (!buf)
return -ENOMEM;
if (copy_from_user(buf, ubuf, buf_size)) {
ret = -EFAULT;
goto done;
}
arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap);
memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
if (arg_num > 3) {
mwifiex_dbg(priv->adapter, ERROR,
"Too many arguments\n");
ret = -EINVAL;
goto done;
}
if (arg_num >= 1 && arg_num < 3)
mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET,
MWIFIEX_SYNC_CMD, &hscfg);
if (arg_num) {
if (conditions == HS_CFG_CANCEL) {
mwifiex_cancel_hs(priv, MWIFIEX_ASYNC_CMD);
ret = count;
goto done;
}
hscfg.conditions = conditions;
}
if (arg_num >= 2)
hscfg.gpio = gpio;
if (arg_num == 3)
hscfg.gap = gap;
hscfg.is_invoke_hostcmd = false;
mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
MWIFIEX_SYNC_CMD, &hscfg);
mwifiex_enable_hs(priv->adapter);
priv->adapter->hs_enabling = false;
ret = count;
done:
free_page(addr);
return ret;
}
/* Kernel needs to suspend all functions separately. Therefore all
* registered functions must have drivers with suspend and resume
* methods. Failing that the kernel simply removes the whole card.
*
* If already not suspended, this function allocates and sends a
* 'host sleep activate' request to the firmware and turns off the traffic.
*/
static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usb_card_rec *card = usb_get_intfdata(intf);
struct mwifiex_adapter *adapter;
struct usb_tx_data_port *port;
int i, j;
/* Might still be loading firmware */
wait_for_completion(&card->fw_done);
adapter = card->adapter;
if (!adapter) {
dev_err(&intf->dev, "card is not valid\n");
return 0;
}
if (unlikely(adapter->is_suspended))
mwifiex_dbg(adapter, WARN,
"Device already suspended\n");
/* Enable the Host Sleep */
if (!mwifiex_enable_hs(adapter)) {
mwifiex_dbg(adapter, ERROR,
"cmd: failed to suspend\n");
adapter->hs_enabling = false;
return -EFAULT;
}
/* 'is_suspended' flag indicates device is suspended.
* It must be set here before the usb_kill_urb() calls. Reason
* is in the complete handlers, urb->status(= -ENOENT) and
* this flag is used in combination to distinguish between a
* '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);
if (atomic_read(&card->rx_data_urb_pending))
for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
if (card->rx_data_list[i].urb)
usb_kill_urb(card->rx_data_list[i].urb);
for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
port = &card->port[i];
for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) {
if (port->tx_data_list[j].urb)
usb_kill_urb(port->tx_data_list[j].urb);
}
}
if (card->tx_cmd.urb)
usb_kill_urb(card->tx_cmd.urb);
return 0;
}
/* Proc hscfg file write handler
* This function can be used to configure the host sleep parameters.
*/
static ssize_t
mwifiex_hscfg_write(struct file *file, const char __user *ubuf,
size_t count, loff_t *ppos)
{
struct mwifiex_private *priv = (void *)file->private_data;
char *buf;
int ret, arg_num;
struct mwifiex_ds_hs_cfg hscfg;
int conditions = HS_CFG_COND_DEF;
u32 gpio = HS_CFG_GPIO_DEF, gap = HS_CFG_GAP_DEF;
buf = memdup_user_nul(ubuf, min(count, (size_t)(PAGE_SIZE - 1)));
if (IS_ERR(buf))
return PTR_ERR(buf);
arg_num = sscanf(buf, "%d %x %x", &conditions, &gpio, &gap);
memset(&hscfg, 0, sizeof(struct mwifiex_ds_hs_cfg));
if (arg_num > 3) {
mwifiex_dbg(priv->adapter, ERROR,
"Too many arguments\n");
ret = -EINVAL;
goto done;
}
if (arg_num >= 1 && arg_num < 3)
mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_GET,
MWIFIEX_SYNC_CMD, &hscfg);
if (arg_num) {
if (conditions == HS_CFG_CANCEL) {
mwifiex_cancel_hs(priv, MWIFIEX_ASYNC_CMD);
ret = count;
goto done;
}
hscfg.conditions = conditions;
}
if (arg_num >= 2)
hscfg.gpio = gpio;
if (arg_num == 3)
hscfg.gap = gap;
hscfg.is_invoke_hostcmd = false;
mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
MWIFIEX_SYNC_CMD, &hscfg);
mwifiex_enable_hs(priv->adapter);
priv->adapter->hs_enabling = false;
ret = count;
done:
kfree(buf);
return ret;
}
/* Kernel needs to suspend all functions separately. Therefore all
* registered functions must have drivers with suspend and resume
* methods. Failing that the kernel simply removes the whole card.
*
* If already not suspended, this function allocates and sends a
* 'host sleep activate' request to the firmware and turns off the traffic.
*/
static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usb_card_rec *card = usb_get_intfdata(intf);
struct mwifiex_adapter *adapter;
struct usb_tx_data_port *port;
int i, j;
if (!card || !card->adapter) {
pr_err("%s: card or card->adapter is NULL\n", __func__);
return 0;
}
adapter = card->adapter;
if (unlikely(adapter->is_suspended))
mwifiex_dbg(adapter, WARN,
"Device already suspended\n");
mwifiex_enable_hs(adapter);
/* 'is_suspended' flag indicates device is suspended.
* It must be set here before the usb_kill_urb() calls. Reason
* is in the complete handlers, urb->status(= -ENOENT) and
* this flag is used in combination to distinguish between a
* '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);
if (atomic_read(&card->rx_data_urb_pending))
for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
if (card->rx_data_list[i].urb)
usb_kill_urb(card->rx_data_list[i].urb);
for (i = 0; i < MWIFIEX_TX_DATA_PORT; i++) {
port = &card->port[i];
for (j = 0; j < MWIFIEX_TX_DATA_URB; j++) {
if (port->tx_data_list[j].urb)
usb_kill_urb(port->tx_data_list[j].urb);
}
}
if (card->tx_cmd.urb)
usb_kill_urb(card->tx_cmd.urb);
return 0;
}
/*
* SDIO suspend.
*
* Kernel needs to suspend all functions separately. Therefore all
* registered functions must have drivers with suspend and resume
* methods. Failing that the kernel simply removes the whole card.
*
* If already not suspended, this function allocates and sends a host
* sleep activate request to the firmware and turns off the traffic.
*/
static int mwifiex_sdio_suspend(struct device *dev)
{
struct sdio_func *func = dev_to_sdio_func(dev);
struct sdio_mmc_card *card;
struct mwifiex_adapter *adapter;
mmc_pm_flag_t pm_flag = 0;
int i;
int ret = 0;
if (func) {
pm_flag = sdio_get_host_pm_caps(func);
pr_debug("cmd: %s: suspend: PM flag = 0x%x\n",
sdio_func_id(func), pm_flag);
if (!(pm_flag & MMC_PM_KEEP_POWER)) {
pr_err("%s: cannot remain alive while host is"
" suspended\n", sdio_func_id(func));
return -ENOSYS;
}
card = sdio_get_drvdata(func);
if (!card || !card->adapter) {
pr_err("suspend: invalid card or adapter\n");
return 0;
}
} else {
pr_err("suspend: sdio_func is not specified\n");
return 0;
}
adapter = card->adapter;
/* Enable the Host Sleep */
if (!mwifiex_enable_hs(adapter)) {
dev_err(adapter->dev, "cmd: failed to suspend\n");
return -EFAULT;
}
dev_dbg(adapter->dev, "cmd: suspend with MMC_PM_KEEP_POWER\n");
ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
/* Indicate device suspended */
adapter->is_suspended = true;
for (i = 0; i < adapter->priv_num; i++)
netif_carrier_off(adapter->priv[i]->netdev);
return ret;
}
/* Kernel needs to suspend all functions separately. Therefore all
* registered functions must have drivers with suspend and resume
* methods. Failing that the kernel simply removes the whole card.
*
* If already not suspended, this function allocates and sends a
* 'host sleep activate' request to the firmware and turns off the traffic.
*/
static int mwifiex_usb_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usb_card_rec *card = usb_get_intfdata(intf);
struct mwifiex_adapter *adapter;
int i;
if (!card || !card->adapter) {
pr_err("%s: card or card->adapter is NULL\n", __func__);
return 0;
}
adapter = card->adapter;
if (unlikely(adapter->is_suspended))
dev_warn(adapter->dev, "Device already suspended\n");
mwifiex_enable_hs(adapter);
/* 'is_suspended' flag indicates device is suspended.
* It must be set here before the usb_kill_urb() calls. Reason
* is in the complete handlers, urb->status(= -ENOENT) and
* this flag is used in combination to distinguish between a
* 'suspended' state and a 'disconnect' one.
*/
adapter->is_suspended = true;
for (i = 0; i < adapter->priv_num; i++)
netif_carrier_off(adapter->priv[i]->netdev);
if (atomic_read(&card->rx_cmd_urb_pending) && card->rx_cmd.urb)
usb_kill_urb(card->rx_cmd.urb);
if (atomic_read(&card->rx_data_urb_pending))
for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
if (card->rx_data_list[i].urb)
usb_kill_urb(card->rx_data_list[i].urb);
for (i = 0; i < MWIFIEX_TX_DATA_URB; i++)
if (card->tx_data_list[i].urb)
usb_kill_urb(card->tx_data_list[i].urb);
if (card->tx_cmd.urb)
usb_kill_urb(card->tx_cmd.urb);
return 0;
}