Thanks for the answer Isakov.
The code is this way now :
EFI_STATUS TestMain(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
{
EFI_STATUS Status = EFI_SUCCESS;
EFI_ATA_PASS_THRU_PROTOCOL *ataProtocol;
UINT16 Port;
UINT16 PortMultiplierPort;
EFI_HANDLE *HandleBuffer = (EFI_HANDLE *) NULL;
UINTN HandleCount = 0;
UINTN HandleIndex = 0;
Print(L"*****************\n");
Print(L"*Ata*\n");
Print(L"*****************\n");
Status = gBS->LocateHandleBuffer(ByProtocol,
&gEfiAtaPassThruProtocolGuid,
NULL,
&HandleCount,
&HandleBuffer);
if (Status == EFI_SUCCESS)
{
Print(L"gEfiAtaPassThruProtocolGuid HandleCount: %d\n", HandleCount);
// Loop to walk in the handles
for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex ++)
{
Print(L"HandleIndex: %d\n", HandleIndex);
Status = gBS->OpenProtocol(HandleBuffer[HandleIndex],
&gEfiAtaPassThruProtocolGuid,
(VOID **) &ataProtocol,
ImageHandle,
NULL,
EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
Port = 0xFFFF;
PortMultiplierPort = 0xFFFF;
if(EFI_ERROR(Status))
{
Print(L"Status: %x\n", Status);
}
do {
Status = ataProtocol->GetNextPort(ataProtocol,
&Port);
if(!EFI_ERROR(Status))
{
Status = ataProtocol->GetNextDevice(ataProtocol,
Port,
&PortMultiplierPort);
if(!EFI_ERROR(Status))
{
Print(L"Port: %d\n",Port);
Print(L"PortMultiplierPort: %d\n", PortMultiplierPort);
Print(L"-----------------------------------\n");
}
else
{
Print(L"Status: %x\n", Status);
}
}
else
{
Print(L"Status: %x\n", Status);
}
}while(!EFI_ERROR(Status));
}
}
else
{
Print(L"Status: %x\n", Status);
}
return Status;
}
The prints are displaied on the following way:
*****************
*Ata*
*****************
gEfiAtaPassThruProtocolGuid HandleCount: 1
HandleIndex: 0
Status: E
The error happen because the the GetNextDevice does not find anything.
Any idea about the problem ?
As I said before, the code works correctly on a notebook with a sas hdd,
but don't work on a server with 2 sas hdds.
Thanks and Regards
PS.: should the command "dh -p AtaPassThru" return something in my case ?
This command doesn't return nothing. Neither on the server, where the code
does not work, nor on the notebook, where the code works.
Thanks everyone.
Rafael R. Machado
2012/10/18 Sergey Isakov <isakov...@bk.ru>
> No, Rafael.
> You must assign Port = 0xFFFF; inside for() cycle, not outside.
>
> Type
> dh -b
> to see all handles and their protocols
> Sergey
>
> On 18.10.2012, at 16:42, Rafael Machado <rafaelrodrigues.mach...@gmail.com>
> wrote:
>
> Thanks for the answers Feng and Isakov.
>
> On my first message I din't put my hole function here.
> The variables you mentioned were already declared and initialized this way:
>
> EFI_STATUS Status = EFI_SUCCESS;
> EFI_ATA_PASS_THRU_PROTOCOL *ataProtocol;
> UINT16 Port;
> UINT16 PortMultiplierPort;
>
> EFI_HANDLE *HandleBuffer = (EFI_HANDLE *) NULL;
>
> UINTN HandleCount = 0;
> UINTN HandleIndex = 0;
> Port = 0xFFFF;
> PortMultiplierPort = 0xFFFF;
>
> I think probably the problem is what Feng told.
> I have two questions.
>
> First.
> I've searched for a command to check all available protocols on a
> computer.
> I didn't find anything.
> Does any of you know if is there a command that do this kind of magic ?
> Some comand like: shell:> list_all_available_protocols_on_this_computer
> (with a better name)
>
> Second.
> As Feng told, even if the shell main screen display the HDDs thare is a
> possibility of not having access to the ata_pass_thru_protocol. But how the
> HDDs are recognized by the system ?
>
> Thanks again everyone.
> Rafael R. Machado
>
>
>
>
>
>
> 2012/10/18 Sergey Isakov <isakov...@bk.ru>
>
>> Hi Rafael,
>>
>> Set
>> Port = 0xFFFF;
>> before
>> do {
>>
>> Regards,
>> Sergey
>>
>> On 18.10.2012, at 0:09, Rafael Machado <rafaelrodrigues.mach...@gmail.com>
>> wrote:
>>
>> Hi everyone.
>> I'm having a problem with an sample code I've developed.
>> This code should display the ports and Multiports of the Sata hdds that
>> are connected to the board.
>> The strange thing is that the HDD device paths are displayed at uefi main
>> screen, but the following code does not return any port.
>> Another strange thig is that this code works correctly on a notebook.
>> The computer that it doesn't work is a server with 2 sata hdds connected
>> to a backplane that is connected to the sata entries of the motherboard
>> with AHCI mode enabled.
>>
>>
>> Print(L"*****************\n");
>> Print(L"*Ata Device Path*\n", HandleCount);
>> Print(L"*****************\n");
>>
>> Status = gBS->LocateHandleBuffer(ByProtocol,
>> &gEfiAtaPassThruProtocolGuid,
>> NULL,
>> &HandleCount,
>> &HandleBuffer);
>>
>>
>> // Checks if happen some error in the handle localization
>> if (Status == EFI_SUCCESS)
>> {
>>
>> Print(L"gEfiAtaPassThruProtocolGuid HandleCount: %d\n", HandleCount);
>>
>> // Loop to walk in the handles
>> for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex ++)
>> {
>> Print(L"HandleIndex: %d\n", HandleIndex);
>>
>> Status = gBS->OpenProtocol(HandleBuffer[HandleIndex],
>> &gEfiAtaPassThruProtocolGuid,
>> (VOID **) &ataProtocol,
>> ImageHandle,
>> NULL,
>> EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
>>
>> if(EFI_ERROR(Status))
>> {
>> Print(L"Status: %x\n", Status);
>> }
>>
>>
>> do {
>> Status = ataProtocol->GetNextPort(ataProtocol,
>> &Port);
>>
>> if(!EFI_ERROR(Status))
>> {
>> Status = ataProtocol->GetNextDevice(ataProtocol,
>> Port,
>> &PortMultiplierPort);
>>
>> if(!EFI_ERROR(Status))
>> {
>> Print(L"Port: %d\n",Port);
>> Print(L"PortMultiplierPort: %d\n", PortMultiplierPort);
>> Print(L"-----------------------------------\n");
>> }
>> }
>>
>> }while(!EFI_ERROR(Status));
>>
>> }
>> }
>> else
>> {
>> Print(L"Status: %x\n", Status);
>> }
>>
>>
>> Any idea ?
>>
>> Thanks everyone.
>>
>> Rafael R. Machado
>>
>>
>> ------------------------------------------------------------------------------
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>>
>>
>>
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>>
>>
>
> ------------------------------------------------------------------------------
> Everyone hates slow websites. So do we.
> Make your web apps faster with AppDynamics
> Download AppDynamics Lite for free today:
>
> http://p.sf.net/sfu/appdyn_sfd2d_oct_______________________________________________
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> edk2-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/edk2-devel
>
>
>
>
> ------------------------------------------------------------------------------
> Everyone hates slow websites. So do we.
> Make your web apps faster with AppDynamics
> Download AppDynamics Lite for free today:
> http://p.sf.net/sfu/appdyn_sfd2d_oct
> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/edk2-devel
>
>
------------------------------------------------------------------------------
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