MdeModulePkg/Bus/Sd/EmmcDxe/EmmcDiskInfo.c

   1 /** @file
   2   Implement the EFI_DISK_INFO_PROTOCOL interface on EMMC devices.
   3
   4   Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #include "EmmcDxe.h"
  16
  17 /**
  18   Provides inquiry information for the controller type.
  19
  20   This function is used by the driver entity to get inquiry data. Data format of
  21   Identify data is defined by the Interface GUID.
  22
  23   @param[in]     This              Pointer to the EFI_DISK_INFO_PROTOCOL instance.
  24   @param[in,out] InquiryData       Pointer to a buffer for the inquiry data.
  25   @param[in,out] InquiryDataSize   Pointer to the value for the inquiry data size.
  26
  27   @retval EFI_SUCCESS            The command was accepted without any errors.
  28   @retval EFI_NOT_FOUND          Device does not support this data class.
  29   @retval EFI_DEVICE_ERROR       Error reading InquiryData from device.
  30   @retval EFI_BUFFER_TOO_SMALL   InquiryDataSize not big enough.
  31
  32 **/
  33 EFI_STATUS
  34 EFIAPI
  35 EmmcDiskInfoInquiry (
  36   IN     EFI_DISK_INFO_PROTOCOL  *This,
  37   IN OUT VOID                    *InquiryData,
  38   IN OUT UINT32                  *InquiryDataSize
  39   )
  40 {
  41   EFI_STATUS        Status;
  42   EMMC_PARTITION    *Partition;
  43   EMMC_DEVICE       *Device;
  44
  45   Partition = EMMC_PARTITION_DATA_FROM_DISKINFO (This);
  46   Device    = Partition->Device;
  47
  48   if (*InquiryDataSize >= sizeof (Device->Cid)) {
  49     Status = EFI_SUCCESS;
  50     CopyMem (InquiryData, &Device->Cid, sizeof (Device->Cid));
  51   } else {
  52     Status = EFI_BUFFER_TOO_SMALL;
  53   }
  54
  55   *InquiryDataSize = sizeof (Device->Cid);
  56
  57   return Status;
  58 }
  59
  60 /**
  61   Provides identify information for the controller type.
  62
  63   This function is used by the driver entity to get identify data. Data format
  64   of Identify data is defined by the Interface GUID.
  65
  66   @param[in]     This               Pointer to the EFI_DISK_INFO_PROTOCOL
  67                                     instance.
  68   @param[in,out] IdentifyData       Pointer to a buffer for the identify data.
  69   @param[in,out] IdentifyDataSize   Pointer to the value for the identify data
  70                                     size.
  71
  72   @retval EFI_SUCCESS            The command was accepted without any errors.
  73   @retval EFI_NOT_FOUND          Device does not support this data class.
  74   @retval EFI_DEVICE_ERROR       Error reading IdentifyData from device.
  75   @retval EFI_BUFFER_TOO_SMALL   IdentifyDataSize not big enough.
  76
  77 **/
  78 EFI_STATUS
  79 EFIAPI
  80 EmmcDiskInfoIdentify (
  81   IN     EFI_DISK_INFO_PROTOCOL  *This,
  82   IN OUT VOID                    *IdentifyData,
  83   IN OUT UINT32                  *IdentifyDataSize
  84   )
  85 {
  86   return EFI_NOT_FOUND;
  87 }
  88
  89 /**
  90   Provides sense data information for the controller type.
  91
  92   This function is used by the driver entity to get sense data. Data format of
  93   Sense data is defined by the Interface GUID.
  94
  95   @param[in]     This              Pointer to the EFI_DISK_INFO_PROTOCOL instance.
  96   @param[in,out] SenseData         Pointer to the SenseData.
  97   @param[in,out] SenseDataSize     Size of SenseData in bytes.
  98   @param[out]    SenseDataNumber   Pointer to the value for the sense data size.
  99
 100   @retval EFI_SUCCESS            The command was accepted without any errors.
 101   @retval EFI_NOT_FOUND          Device does not support this data class.
 102   @retval EFI_DEVICE_ERROR       Error reading SenseData from device.
 103   @retval EFI_BUFFER_TOO_SMALL   SenseDataSize not big enough.
 104
 105 **/
 106 EFI_STATUS
 107 EFIAPI
 108 EmmcDiskInfoSenseData (
 109   IN     EFI_DISK_INFO_PROTOCOL  *This,
 110   IN OUT VOID                    *SenseData,
 111   IN OUT UINT32                  *SenseDataSize,
 112   OUT    UINT8                   *SenseDataNumber
 113   )
 114 {
 115   return EFI_NOT_FOUND;
 116 }
 117
 118 /**
 119   Provides IDE channel and device information for the interface.
 120
 121   This function is used by the driver entity to get controller information.
 122
 123   @param[in]  This         Pointer to the EFI_DISK_INFO_PROTOCOL instance.
 124   @param[out] IdeChannel   Pointer to the Ide Channel number.  Primary or secondary.
 125   @param[out] IdeDevice    Pointer to the Ide Device number.  Master or slave.
 126
 127   @retval EFI_SUCCESS       IdeChannel and IdeDevice are valid.
 128   @retval EFI_UNSUPPORTED   This is not an IDE device.
 129
 130 **/
 131 EFI_STATUS
 132 EFIAPI
 133 EmmcDiskInfoWhichIde (
 134   IN  EFI_DISK_INFO_PROTOCOL  *This,
 135   OUT UINT32                  *IdeChannel,
 136   OUT UINT32                  *IdeDevice
 137   )
 138 {
 139   return EFI_UNSUPPORTED;
 140 }