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   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include "EmmcDxe.h"
  10
  11 /**
  12   Provides inquiry information for the controller type.
  13
  14   This function is used by the driver entity to get inquiry data. Data format of
  15   Identify data is defined by the Interface GUID.
  16
  17   @param[in]     This              Pointer to the EFI_DISK_INFO_PROTOCOL instance.
  18   @param[in,out] InquiryData       Pointer to a buffer for the inquiry data.
  19   @param[in,out] InquiryDataSize   Pointer to the value for the inquiry data size.
  20
  21   @retval EFI_SUCCESS            The command was accepted without any errors.
  22   @retval EFI_NOT_FOUND          Device does not support this data class.
  23   @retval EFI_DEVICE_ERROR       Error reading InquiryData from device.
  24   @retval EFI_BUFFER_TOO_SMALL   InquiryDataSize not big enough.
  25
  26 **/
  27 EFI_STATUS
  28 EFIAPI
  29 EmmcDiskInfoInquiry (
  30   IN     EFI_DISK_INFO_PROTOCOL  *This,
  31   IN OUT VOID                    *InquiryData,
  32   IN OUT UINT32                  *InquiryDataSize
  33   )
  34 {
  35   EFI_STATUS      Status;
  36   EMMC_PARTITION  *Partition;
  37   EMMC_DEVICE     *Device;
  38
  39   Partition = EMMC_PARTITION_DATA_FROM_DISKINFO (This);
  40   Device    = Partition->Device;
  41
  42   if (*InquiryDataSize >= sizeof (Device->Cid)) {
  43     Status = EFI_SUCCESS;
  44     CopyMem (InquiryData, &Device->Cid, sizeof (Device->Cid));
  45   } else {
  46     Status = EFI_BUFFER_TOO_SMALL;
  47   }
  48
  49   *InquiryDataSize = sizeof (Device->Cid);
  50
  51   return Status;
  52 }
  53
  54 /**
  55   Provides identify information for the controller type.
  56
  57   This function is used by the driver entity to get identify data. Data format
  58   of Identify data is defined by the Interface GUID.
  59
  60   @param[in]     This               Pointer to the EFI_DISK_INFO_PROTOCOL
  61                                     instance.
  62   @param[in,out] IdentifyData       Pointer to a buffer for the identify data.
  63   @param[in,out] IdentifyDataSize   Pointer to the value for the identify data
  64                                     size.
  65
  66   @retval EFI_SUCCESS            The command was accepted without any errors.
  67   @retval EFI_NOT_FOUND          Device does not support this data class.
  68   @retval EFI_DEVICE_ERROR       Error reading IdentifyData from device.
  69   @retval EFI_BUFFER_TOO_SMALL   IdentifyDataSize not big enough.
  70
  71 **/
  72 EFI_STATUS
  73 EFIAPI
  74 EmmcDiskInfoIdentify (
  75   IN     EFI_DISK_INFO_PROTOCOL  *This,
  76   IN OUT VOID                    *IdentifyData,
  77   IN OUT UINT32                  *IdentifyDataSize
  78   )
  79 {
  80   return EFI_NOT_FOUND;
  81 }
  82
  83 /**
  84   Provides sense data information for the controller type.
  85
  86   This function is used by the driver entity to get sense data. Data format of
  87   Sense data is defined by the Interface GUID.
  88
  89   @param[in]     This              Pointer to the EFI_DISK_INFO_PROTOCOL instance.
  90   @param[in,out] SenseData         Pointer to the SenseData.
  91   @param[in,out] SenseDataSize     Size of SenseData in bytes.
  92   @param[out]    SenseDataNumber   Pointer to the value for the sense data size.
  93
  94   @retval EFI_SUCCESS            The command was accepted without any errors.
  95   @retval EFI_NOT_FOUND          Device does not support this data class.
  96   @retval EFI_DEVICE_ERROR       Error reading SenseData from device.
  97   @retval EFI_BUFFER_TOO_SMALL   SenseDataSize not big enough.
  98
  99 **/
 100 EFI_STATUS
 101 EFIAPI
 102 EmmcDiskInfoSenseData (
 103   IN     EFI_DISK_INFO_PROTOCOL  *This,
 104   IN OUT VOID                    *SenseData,
 105   IN OUT UINT32                  *SenseDataSize,
 106   OUT    UINT8                   *SenseDataNumber
 107   )
 108 {
 109   return EFI_NOT_FOUND;
 110 }
 111
 112 /**
 113   Provides IDE channel and device information for the interface.
 114
 115   This function is used by the driver entity to get controller information.
 116
 117   @param[in]  This         Pointer to the EFI_DISK_INFO_PROTOCOL instance.
 118   @param[out] IdeChannel   Pointer to the Ide Channel number.  Primary or secondary.
 119   @param[out] IdeDevice    Pointer to the Ide Device number.  Master or slave.
 120
 121   @retval EFI_SUCCESS       IdeChannel and IdeDevice are valid.
 122   @retval EFI_UNSUPPORTED   This is not an IDE device.
 123
 124 **/
 125 EFI_STATUS
 126 EFIAPI
 127 EmmcDiskInfoWhichIde (
 128   IN  EFI_DISK_INFO_PROTOCOL  *This,
 129   OUT UINT32                  *IdeChannel,
 130   OUT UINT32                  *IdeDevice
 131   )
 132 {
 133   return EFI_UNSUPPORTED;
 134 }