Beispiel #1
0
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;
}
Beispiel #2
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;
}
Beispiel #3
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 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;
}
Beispiel #4
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;
}
Beispiel #5
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 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;
}
Beispiel #6
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;
}
Beispiel #7
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 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;
}