static int wil_stop(struct net_device *ndev)
{
struct wil6210_priv *wil = ndev_to_wil(ndev);
wil_dbg_misc(wil, "%s()\n", __func__);
return wil_down(wil);
}
static int wil_suspend_radio_off(struct wil6210_priv *wil)
{
int rc = 0;
bool active_ifaces;
wil_dbg_pm(wil, "suspend radio off\n");
rc = down_write_trylock(&wil->mem_lock);
if (!rc) {
wil_err(wil,
"device is busy. down_write_trylock failed, returned (0x%x)\n",
rc);
wil->suspend_stats.rejected_by_host++;
return -EBUSY;
}
set_bit(wil_status_suspending, wil->status);
up_write(&wil->mem_lock);
/* if netif up, hardware is alive, shut it down */
mutex_lock(&wil->vif_mutex);
active_ifaces = wil_has_active_ifaces(wil, true, false);
mutex_unlock(&wil->vif_mutex);
if (active_ifaces) {
rc = wil_down(wil);
if (rc) {
wil_err(wil, "wil_down : %d\n", rc);
wil->suspend_stats.r_off.failed_suspends++;
goto out;
}
}
/* Disable PCIe IRQ to prevent sporadic IRQs when PCIe is suspending */
wil_dbg_pm(wil, "Disabling PCIe IRQ before suspending\n");
wil_disable_irq(wil);
if (wil->platform_ops.suspend) {
rc = wil->platform_ops.suspend(wil->platform_handle, false);
if (rc) {
wil_enable_irq(wil);
wil->suspend_stats.r_off.failed_suspends++;
goto out;
}
}
set_bit(wil_status_suspended, wil->status);
out:
clear_bit(wil_status_suspending, wil->status);
wil_dbg_pm(wil, "suspend radio off: %d\n", rc);
return rc;
}
static int wil_suspend_radio_off(struct wil6210_priv *wil)
{
int rc = 0;
bool active_ifaces;
wil_dbg_pm(wil, "suspend radio off\n");
set_bit(wil_status_suspending, wil->status);
if (test_bit(wil_status_collecting_dumps, wil->status)) {
/* Device collects crash dump, cancel the suspend */
wil_dbg_pm(wil, "reject suspend while collecting crash dump\n");
clear_bit(wil_status_suspending, wil->status);
wil->suspend_stats.rejected_by_host++;
return -EBUSY;
}
/* if netif up, hardware is alive, shut it down */
mutex_lock(&wil->vif_mutex);
active_ifaces = wil_has_active_ifaces(wil, true, false);
mutex_unlock(&wil->vif_mutex);
if (active_ifaces) {
rc = wil_down(wil);
if (rc) {
wil_err(wil, "wil_down : %d\n", rc);
wil->suspend_stats.r_off.failed_suspends++;
goto out;
}
}
/* Disable PCIe IRQ to prevent sporadic IRQs when PCIe is suspending */
wil_dbg_pm(wil, "Disabling PCIe IRQ before suspending\n");
wil_disable_irq(wil);
if (wil->platform_ops.suspend) {
rc = wil->platform_ops.suspend(wil->platform_handle, false);
if (rc) {
wil_enable_irq(wil);
wil->suspend_stats.r_off.failed_suspends++;
goto out;
}
}
set_bit(wil_status_suspended, wil->status);
out:
clear_bit(wil_status_suspending, wil->status);
wil_dbg_pm(wil, "suspend radio off: %d\n", rc);
return rc;
}
static int wil_resume_keep_radio_on(struct wil6210_priv *wil)
{
int rc = 0;
/* wil_status_resuming will be cleared when getting
* WMI_TRAFFIC_RESUME_EVENTID
*/
set_bit(wil_status_resuming, wil->status);
clear_bit(wil_status_suspended, wil->status);
wil_c(wil, RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD);
wil_unmask_irq(wil);
wil6210_bus_request(wil, wil->bus_request_kbps_pre_suspend);
/* Send WMI resume request to the device */
rc = wmi_resume(wil);
if (rc) {
wil_err(wil, "device failed to resume (%d)\n", rc);
if (no_fw_recovery)
goto out;
rc = wil_down(wil);
if (rc) {
wil_err(wil, "wil_down failed (%d)\n", rc);
goto out;
}
rc = wil_up(wil);
if (rc) {
wil_err(wil, "wil_up failed (%d)\n", rc);
goto out;
}
}
/* Wake all queues */
if (test_bit(wil_status_fwconnected, wil->status))
wil_update_net_queues_bh(wil, NULL, false);
out:
if (rc)
set_bit(wil_status_suspended, wil->status);
return rc;
}
static int wil_stop(struct net_device *ndev)
{
struct wil6210_priv *wil = ndev_to_wil(ndev);
return wil_down(wil);
}
