/* 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;
}
/*
* SDIO resume.
*
* 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 resumed, this function turns on the traffic and
* sends a host sleep cancel request to the firmware.
*/
static int mwifiex_sdio_resume(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;
if (func) {
pm_flag = sdio_get_host_pm_caps(func);
card = sdio_get_drvdata(func);
if (!card || !card->adapter) {
pr_err("resume: invalid card or adapter\n");
return 0;
}
} else {
pr_err("resume: sdio_func is not specified\n");
return 0;
}
adapter = card->adapter;
if (!adapter->is_suspended) {
dev_warn(adapter->dev, "device already resumed\n");
return 0;
}
adapter->is_suspended = false;
/* Disable Host Sleep */
mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
MWIFIEX_ASYNC_CMD);
return 0;
}
static int mwifiex_pcie_resume(struct pci_dev *pdev)
{
struct mwifiex_adapter *adapter;
struct pcie_service_card *card;
int 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;
if (!adapter->is_suspended) {
dev_warn(adapter->dev, "Device already resumed\n");
return 0;
}
adapter->is_suspended = false;
for (i = 0; i < adapter->priv_num; i++)
if (adapter->priv[i]->media_connected)
netif_carrier_on(adapter->priv[i]->netdev);
mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
MWIFIEX_ASYNC_CMD);
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 resumed, this function turns on the traffic and
* sends a 'host sleep cancel' request to the firmware.
*/
static int mwifiex_usb_resume(struct usb_interface *intf)
{
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 resumed\n");
return 0;
}
/* Indicate device resumed. The netdev queue will be resumed only
* after the urbs have been re-submitted
*/
adapter->is_suspended = false;
if (!atomic_read(&card->rx_data_urb_pending))
for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
mwifiex_usb_submit_rx_urb(&card->rx_data_list[i],
MWIFIEX_RX_DATA_BUF_SIZE);
if (!atomic_read(&card->rx_cmd_urb_pending)) {
card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE);
if (card->rx_cmd.skb)
mwifiex_usb_submit_rx_urb(&card->rx_cmd,
MWIFIEX_RX_CMD_BUF_SIZE);
}
for (i = 0; i < adapter->priv_num; i++)
if (adapter->priv[i]->media_connected)
netif_carrier_on(adapter->priv[i]->netdev);
/* Disable Host Sleep */
if (adapter->hs_activated)
mwifiex_cancel_hs(mwifiex_get_priv(adapter,
MWIFIEX_BSS_ROLE_ANY),
MWIFIEX_ASYNC_CMD);
#ifdef CONFIG_PM
/* Resume handler may be called due to remote wakeup,
* force to exit suspend anyway
*/
usb_disable_autosuspend(card->udev);
#endif /* CONFIG_PM */
return 0;
}
/* 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 resumed, this function turns on the traffic and
* sends a 'host sleep cancel' request to the firmware.
*/
static int mwifiex_usb_resume(struct usb_interface *intf)
{
struct usb_card_rec *card = usb_get_intfdata(intf);
struct mwifiex_adapter *adapter;
int i;
if (!card->adapter) {
dev_err(&intf->dev, "%s: card->adapter is NULL\n",
__func__);
return 0;
}
adapter = card->adapter;
if (unlikely(!adapter->is_suspended)) {
mwifiex_dbg(adapter, WARN,
"Device already resumed\n");
return 0;
}
/* Indicate device resumed. The netdev queue will be resumed only
* after the urbs have been re-submitted
*/
adapter->is_suspended = false;
if (!atomic_read(&card->rx_data_urb_pending))
for (i = 0; i < MWIFIEX_RX_DATA_URB; i++)
mwifiex_usb_submit_rx_urb(&card->rx_data_list[i],
MWIFIEX_RX_DATA_BUF_SIZE);
if (!atomic_read(&card->rx_cmd_urb_pending)) {
card->rx_cmd.skb = dev_alloc_skb(MWIFIEX_RX_CMD_BUF_SIZE);
if (card->rx_cmd.skb)
mwifiex_usb_submit_rx_urb(&card->rx_cmd,
MWIFIEX_RX_CMD_BUF_SIZE);
}
/* Disable Host Sleep */
if (adapter->hs_activated)
mwifiex_cancel_hs(mwifiex_get_priv(adapter,
MWIFIEX_BSS_ROLE_ANY),
MWIFIEX_ASYNC_CMD);
return 0;
}
static int mwifiex_sdio_resume(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;
if (func) {
pm_flag = sdio_get_host_pm_caps(func);
card = sdio_get_drvdata(func);
if (!card || !card->adapter) {
pr_err("resume: invalid card or adapter\n");
return 0;
}
} else {
pr_err("resume: sdio_func is not specified\n");
return 0;
}
adapter = card->adapter;
if (!adapter->is_suspended) {
dev_warn(adapter->dev, "device already resumed\n");
return 0;
}
adapter->is_suspended = false;
for (i = 0; i < adapter->priv_num; i++)
if (adapter->priv[i]->media_connected)
netif_carrier_on(adapter->priv[i]->netdev);
mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
MWIFIEX_ASYNC_CMD);
return 0;
}
