diff options
Diffstat (limited to 'usb/UcmCxUcsi/UcmCallbacks.cpp')
| -rw-r--r-- | usb/UcmCxUcsi/UcmCallbacks.cpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/usb/UcmCxUcsi/UcmCallbacks.cpp b/usb/UcmCxUcsi/UcmCallbacks.cpp new file mode 100644 index 00000000..12d99148 --- /dev/null +++ b/usb/UcmCxUcsi/UcmCallbacks.cpp @@ -0,0 +1,156 @@ +/*++ + +Copyright (c) Microsoft Corporation. All rights reserved. + +Module Name: + + UcmCallbacks.cpp + +Abstract: + + Interface for callbacks from UcmCx. + +Environment: + + Kernel-mode only. + +--*/ + +#include "Pch.h" +#include "UcmCallbacks.tmh" + +#pragma alloc_text(PAGE, Ucm_EvtConnectorSetDataRole) +#pragma alloc_text(PAGE, Ucm_EvtConnectorSetPowerRole) + +NTSTATUS +Ucm_EvtConnectorSetDataRole( + _In_ UCMCONNECTOR Connector, + _In_ UCM_DATA_ROLE DataRole +) +/*++ + +Routine Description: + + Set the power role on a given connector. This may require performing + a data role swap. + +Arguments: + + Connector - The connector on which to set the power role. + + DataRole - The data role to set on the connector. + +Returns: + + NTSTATUS + +--*/ +{ + NTSTATUS status; + WDFDEVICE device; + PPPM_CONNECTOR connector; + PPPM_CONTEXT ppmCtx; + UCSI_USB_OPERATION_ROLE role; + UCSI_CONTROL cmd; + + PAGED_CODE(); + + TRACE_FUNC_ENTRY(TRACE_FLAG_UCMCALLBACKS); + + connector = PpmUcmConnector_GetContext(Connector)->PpmConnector; + device = connector->WdfDevice; + ppmCtx = &Fdo_GetContext(device)->PpmCtx; + + TRACE_INFO(TRACE_FLAG_UCMCALLBACKS, "[Device: 0x%p] Data role change to %!UCM_DATA_ROLE! requested", device, DataRole); + + if (!Convert(DataRole, role)) + { + status = STATUS_INVALID_PARAMETER; + TRACE_ERROR(TRACE_FLAG_UCMCALLBACKS, "[Device: 0x%p] Invalid data role requested %!UCM_DATA_ROLE!", device, DataRole); + goto Exit; + } + + cmd.AsUInt64 = 0; + cmd.Command = UcsiCommandSetUor; + cmd.SetUor.ConnectorNumber = connector->Index; + cmd.SetUor.UsbOperationRole = role; + + status = Ppm_SendCommand(ppmCtx, cmd, Ucm_EvtSetDataRoleCompleted, ppmCtx); + if (!NT_SUCCESS(status)) + { + goto Exit; + } + +Exit: + + TRACE_FUNC_EXIT(TRACE_FLAG_UCMCALLBACKS); + + return status; +} + + +NTSTATUS +Ucm_EvtConnectorSetPowerRole( + _In_ UCMCONNECTOR Connector, + _In_ UCM_POWER_ROLE PowerRole +) +/*++ + +Routine Description: + + Set the power role on a given connector. This may require performing + a power role swap. + +Arguments: + + Connector - The connector on which to set the power role. + + PowerRole - The power role to set on the connector. + +Returns: + + NTSTATUS + +--*/ +{ + NTSTATUS status; + WDFDEVICE device; + PPPM_CONNECTOR connector; + PPPM_CONTEXT ppmCtx; + UCSI_POWER_DIRECTION_ROLE role; + UCSI_CONTROL cmd; + + PAGED_CODE(); + + TRACE_FUNC_ENTRY(TRACE_FLAG_UCMCALLBACKS); + + connector = PpmUcmConnector_GetContext(Connector)->PpmConnector; + device = connector->WdfDevice; + ppmCtx = &Fdo_GetContext(device)->PpmCtx; + + TRACE_INFO(TRACE_FLAG_UCMCALLBACKS, "[Device: 0x%p] Power role change to %!UCM_POWER_ROLE! requested", device, PowerRole); + + if (!Convert(PowerRole, role)) + { + status = STATUS_INVALID_PARAMETER; + TRACE_ERROR(TRACE_FLAG_UCMCALLBACKS, "[Device: 0x%p] Invalid power role requested %!UCM_POWER_ROLE!", device, PowerRole); + goto Exit; + } + + cmd.AsUInt64 = 0; + cmd.Command = UcsiCommandSetPdr; + cmd.SetPdr.ConnectorNumber = connector->Index; + cmd.SetPdr.PowerDirectionRole = role; + + status = Ppm_SendCommand(ppmCtx, cmd, Ucm_EvtSetPowerRoleCompleted, ppmCtx); + if (!NT_SUCCESS(status)) + { + goto Exit; + } + +Exit: + + TRACE_FUNC_EXIT(TRACE_FLAG_UCMCALLBACKS); + + return status; +}
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