static
SCI_STATUS scic_sds_remote_node_context_await_suspension_state_event_handler(
struct SCIC_SDS_REMOTE_NODE_CONTEXT * this_rnc,
U32 event_code
)
{
SCI_STATUS status;
switch (scu_get_event_type(event_code))
{
case SCU_EVENT_TL_RNC_SUSPEND_TX:
sci_base_state_machine_change_state(
&this_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_TX_SUSPENDED_STATE
);
this_rnc->suspension_code = scu_get_event_specifier(event_code);
status = SCI_SUCCESS;
break;
case SCU_EVENT_TL_RNC_SUSPEND_TX_RX:
sci_base_state_machine_change_state(
&this_rnc->state_machine,
SCIC_SDS_REMOTE_NODE_CONTEXT_TX_RX_SUSPENDED_STATE
);
this_rnc->suspension_code = scu_get_event_specifier(event_code);
status = SCI_SUCCESS;
break;
default:
SCIC_LOG_WARNING((
sci_base_object_get_logger(this_rnc->device),
SCIC_LOG_OBJECT_SSP_REMOTE_TARGET |
SCIC_LOG_OBJECT_SMP_REMOTE_TARGET |
SCIC_LOG_OBJECT_STP_REMOTE_TARGET,
"SCIC Remote Node Context 0x%x requested to process event 0x%x while in state %d.\n",
this_rnc, event_code, sci_base_state_machine_get_state(&this_rnc->state_machine)
));
status = SCI_FAILURE;
break;
}
return status;
}
enum sci_status sci_remote_node_context_event_handler(struct sci_remote_node_context *sci_rnc,
u32 event_code)
{
enum scis_sds_remote_node_context_states state;
state = sci_rnc->sm.current_state_id;
switch (state) {
case SCI_RNC_POSTING:
switch (scu_get_event_code(event_code)) {
case SCU_EVENT_POST_RNC_COMPLETE:
sci_change_state(&sci_rnc->sm, SCI_RNC_READY);
break;
default:
goto out;
}
break;
case SCI_RNC_INVALIDATING:
if (scu_get_event_code(event_code) == SCU_EVENT_POST_RNC_INVALIDATE_COMPLETE) {
if (sci_rnc->destination_state == SCIC_SDS_REMOTE_NODE_DESTINATION_STATE_FINAL)
state = SCI_RNC_INITIAL;
else
state = SCI_RNC_POSTING;
sci_change_state(&sci_rnc->sm, state);
} else {
switch (scu_get_event_type(event_code)) {
case SCU_EVENT_TYPE_RNC_SUSPEND_TX:
case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX:
/* We really dont care if the hardware is going to suspend
* the device since it's being invalidated anyway */
dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)),
"%s: SCIC Remote Node Context 0x%p was "
"suspeneded by hardware while being "
"invalidated.\n", __func__, sci_rnc);
break;
default:
goto out;
}
}
break;
case SCI_RNC_RESUMING:
if (scu_get_event_code(event_code) == SCU_EVENT_POST_RCN_RELEASE) {
sci_change_state(&sci_rnc->sm, SCI_RNC_READY);
} else {
switch (scu_get_event_type(event_code)) {
case SCU_EVENT_TYPE_RNC_SUSPEND_TX:
case SCU_EVENT_TYPE_RNC_SUSPEND_TX_RX:
/* We really dont care if the hardware is going to suspend
* the device since it's being resumed anyway */
dev_dbg(scirdev_to_dev(rnc_to_dev(sci_rnc)),
"%s: SCIC Remote Node Context 0x%p was "
"suspeneded by hardware while being resumed.\n",
__func__, sci_rnc);
break;
default:
goto out;
}
}
break;
case SCI_RNC_READY:
switch (scu_get_event_type(event_code)) {
case SCU_EVENT_TL_RNC_SUSPEND_TX:
sci_change_state(&sci_rnc->sm, SCI_RNC_TX_SUSPENDED);
sci_rnc->suspension_code = scu_get_event_specifier(event_code);
break;
case SCU_EVENT_TL_RNC_SUSPEND_TX_RX:
sci_change_state(&sci_rnc->sm, SCI_RNC_TX_RX_SUSPENDED);
sci_rnc->suspension_code = scu_get_event_specifier(event_code);
break;
default:
goto out;
}
break;
case SCI_RNC_AWAIT_SUSPENSION:
switch (scu_get_event_type(event_code)) {
case SCU_EVENT_TL_RNC_SUSPEND_TX:
sci_change_state(&sci_rnc->sm, SCI_RNC_TX_SUSPENDED);
sci_rnc->suspension_code = scu_get_event_specifier(event_code);
break;
case SCU_EVENT_TL_RNC_SUSPEND_TX_RX:
sci_change_state(&sci_rnc->sm, SCI_RNC_TX_RX_SUSPENDED);
sci_rnc->suspension_code = scu_get_event_specifier(event_code);
break;
default:
goto out;
}
break;
default:
dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)),
"%s: invalid state %d\n", __func__, state);
return SCI_FAILURE_INVALID_STATE;
}
return SCI_SUCCESS;
out:
dev_warn(scirdev_to_dev(rnc_to_dev(sci_rnc)),
"%s: code: %#x state: %d\n", __func__, event_code, state);
return SCI_FAILURE;
}
