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qcacmn: Trigger sys wakeup for WMI command when WOW is enabled

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DHCP packet is received in the IPA exception path when
system is suspending. As part of DHCP packet processing,
WMI_PEER_SET_PARAM_CMDID is sent to FW after WOW is
enabled resulting in self recovery getting triggered by
host.

Fix is to do an explicit system wakeup if a WMI command
has to be sent post WOW enablement.

Change-Id: If1904a4fe5c861deed1b35071be10cb8cc8d6407
CRs-Fixed: 2890913
This commit is contained in:
Yeshwanth Sriram Guntuka
2021-03-16 13:49:31 +05:30
committed by snandini
parent 125c4c2a60
commit 6611374cf4
7 changed files with 327 additions and 4 deletions
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39
hif/src/hif_main.c
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@@ -898,6 +898,7 @@ struct hif_opaque_softc *hif_open(qdf_device_t qdf_ctx,
qdf_atomic_init(&scn->active_grp_tasklet_cnt);
qdf_atomic_init(&scn->link_suspended);
qdf_atomic_init(&scn->tasklet_from_intr);
hif_system_pm_set_state_on(GET_HIF_OPAQUE_HDL(scn));
qdf_mem_copy(&scn->callbacks, cbk,
sizeof(struct hif_driver_state_callbacks));
scn->bus_type = bus_type;
@@ -2035,3 +2036,41 @@ void hif_set_ce_service_max_rx_ind_flush(struct hif_opaque_softc *hif,
hif_ctx->ce_service_max_rx_ind_flush =
ce_service_max_rx_ind_flush;
}
#ifdef SYSTEM_PM_CHECK
void __hif_system_pm_set_state(struct hif_opaque_softc *hif,
enum hif_system_pm_state state)
{
struct hif_softc *hif_ctx = HIF_GET_SOFTC(hif);
qdf_atomic_set(&hif_ctx->sys_pm_state, state);
}
int32_t hif_system_pm_get_state(struct hif_opaque_softc *hif)
{
struct hif_softc *hif_ctx = HIF_GET_SOFTC(hif);
return qdf_atomic_read(&hif_ctx->sys_pm_state);
}
int hif_system_pm_state_check(struct hif_opaque_softc *hif)
{
struct hif_softc *hif_ctx = HIF_GET_SOFTC(hif);
int32_t sys_pm_state;
if (!hif_ctx) {
hif_err("hif context is null");
return -EFAULT;
}
sys_pm_state = qdf_atomic_read(&hif_ctx->sys_pm_state);
if (sys_pm_state == HIF_SYSTEM_PM_STATE_BUS_SUSPENDING ||
sys_pm_state == HIF_SYSTEM_PM_STATE_BUS_SUSPENDED) {
hif_info("Triggering system wakeup");
qdf_pm_system_wakeup();
return -EAGAIN;
}
return 0;
}
#endif