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MdeModulePkg/NetLib: Add NetLibDetectMediaWaitTimeout() API to support EFI_NOT_READY media state detection

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In wireless connection, connecting state needs to be cared more
about. ECR 1772 redefined the state EFI_NOT_READY to represent
connecting state and can be retrieved from Aip protocol. This
patch adds a new API to check media state at a specified time
interval when network is connecting until the connection process
finishes or timeout.

V2:
  * Return error status code directly when Aip protocol falied to detect
    media rather than wait for another time's check.
  * Set media state default value to EFI_SUCCESS since some platforms may
    not support retrieving media state from Aip protocol.

Cc: Fu Siyuan <siyuan.fu@intel.com>
Cc: Ye Ting <ting.ye@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Wang Fan <fan.wang@intel.com>
Reviewed-by: Jiaxin Wu <jiaxin.wu@intel.com>
Reviewed-by: Fu Siyuan <siyuan.fu@intel.com>
This commit is contained in:
fanwang2
2017-12-06 13:00:21 +08:00
committed by Jiaxin Wu
parent 1e6e6e188e
commit ca4e432392
3 changed files with 205 additions and 0 deletions
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40
MdeModulePkg/Include/Library/NetLib.h
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@@ -95,6 +95,12 @@ typedef UINT16 TCP_PORTNO;
#define DNS_CLASS_HS 4
#define DNS_CLASS_ANY 255
//
// Number of 100ns units time Interval for network media state detect
//
#define MEDIA_STATE_DETECT_TIME_INTERVAL 1000000U
#pragma pack(1)
//
@@ -1247,6 +1253,40 @@ NetLibDetectMedia (
OUT BOOLEAN *MediaPresent
);
/**
Detect media state for a network device. This routine will wait for a period of time at
a specified checking interval when a certain network is under connecting until connection
process finishes or timeout. If Aip protocol is supported by low layer drivers, three kinds
of media states can be detected: EFI_SUCCESS, EFI_NOT_READY and EFI_NO_MEDIA, represents
connected state, connecting state and no media state respectively. When function detects
the current state is EFI_NOT_READY, it will loop to wait for next time's check until state
turns to be EFI_SUCCESS or EFI_NO_MEDIA. If Aip protocol is not supported, function will
call NetLibDetectMedia() and return state directly.
@param[in] ServiceHandle The handle where network service binding protocols are
installed on.
@param[in] Timeout The maximum number of 100ns units to wait when network
is connecting. Zero value means detect once and return
immediately.
@param[out] MediaState The pointer to the detected media state.
@retval EFI_SUCCESS Media detection success.
@retval EFI_INVALID_PARAMETER ServiceHandle is not a valid network device handle or
MediaState pointer is NULL.
@retval EFI_DEVICE_ERROR A device error occurred.
@retval EFI_TIMEOUT Network is connecting but timeout.
**/
EFI_STATUS
EFIAPI
NetLibDetectMediaWaitTimeout (
IN EFI_HANDLE ServiceHandle,
IN UINT64 Timeout,
OUT EFI_STATUS *MediaState
);
/**
Create an IPv4 device path node.