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Commit ee4241b7 authored by Yue Ma's avatar Yue Ma
Browse files

cnss2: Add API to check if WLAN PCIe device is down 



API provision for WLAN host driver to check if WLAN PCIe device
is down.

Change-Id: I91efcd781af67c72b787c89e6b619c4cc49da34b
Signed-off-by: default avatarYue Ma <yuem@codeaurora.org>
parent 1af73999

drivers/net/wireless/cnss2/pci.c

+21 −0
Original line number Diff line number Diff line
@@ -236,6 +236,27 @@ static int cnss_set_pci_link(struct cnss_pci_data *pci_priv, bool link_up) 
}

#endif /* CONFIG_PCI_MSM */



int cnss_pci_is_device_down(struct device *dev)

{

	struct cnss_plat_data *plat_priv = cnss_bus_dev_to_plat_priv(dev);

	struct cnss_pci_data *pci_priv;



	if (!plat_priv) {

		cnss_pr_err("plat_priv is NULL\n");

		return -ENODEV;

	}



	pci_priv = plat_priv->bus_priv;

	if (!pci_priv) {

		cnss_pr_err("pci_priv is NULL\n");

		return -ENODEV;

	}



	return test_bit(CNSS_DEV_ERR_NOTIFY, &plat_priv->driver_state) |

		pci_priv->pci_link_down_ind;

}

EXPORT_SYMBOL(cnss_pci_is_device_down);



int cnss_pci_recovery_update_status(struct cnss_pci_data *pci_priv)

{

	struct cnss_plat_data *plat_priv;

include/net/cnss2.h

+1 −0
Original line number Diff line number Diff line
@@ -167,6 +167,7 @@ static inline int cnss_wlan_pm_control(struct device *dev, bool vote) 
	return 0;

}

#endif /* CONFIG_PCI_MSM */

extern int cnss_pci_is_device_down(struct device *dev);

extern void cnss_schedule_recovery(struct device *dev,

				   enum cnss_recovery_reason reason);

extern int cnss_self_recovery(struct device *dev,