1 /** @file 2 * 3 * Copyright (c) 2017, Linaro. All rights reserved. 4 * 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 <Library/BaseLib.h> 16 #include <Library/BaseMemoryLib.h> 17 #include <Library/DebugLib.h> 18 #include <Library/DevicePathLib.h> 19 #include <Library/IoLib.h> 20 #include <Library/TimerLib.h> 21 #include <Library/UefiBootServicesTableLib.h> 22 #include <Library/UefiLib.h> 23 #include <Library/UefiRuntimeServicesTableLib.h> 24 #include <Library/UsbSerialNumberLib.h> 25 26 #include <Protocol/EmbeddedGpio.h> 27 #include <Protocol/PlatformDwMmc.h> 28 29 #include <Hi6220.h> 30 31 #define DETECT_SD_CARD 8 // GPIO 1_0 32 33 DW_MMC_HC_SLOT_CAP 34 DwMmcCapability[2] = { 35 { 36 .Ddr50 = 1, 37 .HighSpeed = 1, 38 .BusWidth = 8, 39 .SlotType = EmbeddedSlot, 40 .CardType = EmmcCardType, 41 .BaseClkFreq = 100000 42 }, { 43 .HighSpeed = 1, 44 .BusWidth = 4, 45 .SlotType = RemovableSlot, 46 .CardType = SdCardType, 47 .Voltage30 = 1, 48 .BaseClkFreq = 100000 49 } 50 }; 51 52 EFI_STATUS 53 EFIAPI 54 HiKeyGetCapability ( 55 IN EFI_HANDLE Controller, 56 IN UINT8 Slot, 57 OUT DW_MMC_HC_SLOT_CAP *Capability 58 ) 59 { 60 if (Capability == NULL) { 61 return EFI_INVALID_PARAMETER; 62 } 63 if (DwMmcCapability[0].Controller == 0) { 64 DwMmcCapability[0].Controller = Controller; 65 CopyMem (Capability, &DwMmcCapability[0], sizeof (DW_MMC_HC_SLOT_CAP)); 66 } else if (DwMmcCapability[0].Controller == Controller) { 67 CopyMem (Capability, &DwMmcCapability[0], sizeof (DW_MMC_HC_SLOT_CAP)); 68 } else if (DwMmcCapability[1].Controller == 0) { 69 DwMmcCapability[1].Controller = Controller; 70 CopyMem (Capability, &DwMmcCapability[1], sizeof (DW_MMC_HC_SLOT_CAP)); 71 } else if (DwMmcCapability[1].Controller == Controller) { 72 CopyMem (Capability, &DwMmcCapability[1], sizeof (DW_MMC_HC_SLOT_CAP)); 73 } else { 74 return EFI_INVALID_PARAMETER; 75 } 76 return EFI_SUCCESS; 77 } 78 79 BOOLEAN 80 EFIAPI 81 HiKeyCardDetect ( 82 IN EFI_HANDLE Controller, 83 IN UINT8 Slot 84 ) 85 { 86 EFI_STATUS Status; 87 EMBEDDED_GPIO *Gpio; 88 UINTN Value; 89 90 if (DwMmcCapability[0].Controller == Controller) { 91 return TRUE; 92 } else if (DwMmcCapability[1].Controller == Controller) { 93 Status = gBS->LocateProtocol (&gEmbeddedGpioProtocolGuid, NULL, (VOID **)&Gpio); 94 if (EFI_ERROR (Status)) { 95 DEBUG ((DEBUG_ERROR, "Failed to get GPIO protocol: %r\n", Status)); 96 return FALSE; 97 } 98 Status = Gpio->Set (Gpio, DETECT_SD_CARD, GPIO_MODE_INPUT); 99 if (EFI_ERROR (Status)) { 100 DEBUG ((DEBUG_ERROR, "Failed to sed GPIO as input mode: %r\n", Status)); 101 return FALSE; 102 } 103 Status = Gpio->Get (Gpio, DETECT_SD_CARD, &Value); 104 if (EFI_ERROR (Status)) { 105 DEBUG ((DEBUG_ERROR, "Failed to get GPIO value: %r\n", Status)); 106 return FALSE; 107 } 108 if (Value == 0) { 109 return TRUE; 110 } 111 return FALSE; 112 } 113 return FALSE; 114 } 115 116 PLATFORM_DW_MMC_PROTOCOL mDwMmcDevice = { 117 HiKeyGetCapability, 118 HiKeyCardDetect 119 }; 120 121 EFI_STATUS 122 EFIAPI 123 HiKeyMmcEntryPoint ( 124 IN EFI_HANDLE ImageHandle, 125 IN EFI_SYSTEM_TABLE *SystemTable 126 ) 127 { 128 EFI_STATUS Status; 129 130 Status = gBS->InstallProtocolInterface ( 131 &ImageHandle, 132 &gPlatformDwMmcProtocolGuid, 133 EFI_NATIVE_INTERFACE, 134 &mDwMmcDevice 135 ); 136 if (EFI_ERROR (Status)) { 137 return Status; 138 } 139 return Status; 140 } 141
