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303 lines
12 KiB
C
303 lines
12 KiB
C
/** @file
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Main Header file for the MMC DXE driver
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Copyright (c) 2011, ARM Limited. All rights reserved.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __MMC_H
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#define __MMC_H
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#include <Uefi.h>
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#include <Protocol/DiskIo.h>
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#include <Protocol/BlockIo.h>
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#include <Protocol/DevicePath.h>
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#include <Protocol/MmcHost.h>
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#include <Library/UefiLib.h>
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#define MMC_TRACE(txt) DEBUG((EFI_D_BLKIO, "MMC: " txt "\n"))
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#define MMC_IOBLOCKS_READ 0
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#define MMC_IOBLOCKS_WRITE 1
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#define MMC_OCR_POWERUP 0x80000000
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#define MMC_CSD_GET_CCC(Response) (Response[2] >> 20)
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#define MMC_CSD_GET_TRANSPEED(Response) (Response[3] & 0xFF)
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#define MMC_CSD_GET_READBLLEN(Response) ((Response[2] >> 16) & 0xF)
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#define MMC_CSD_GET_WRITEBLLEN(Response) ((Response[0] >> 22) & 0xF)
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#define MMC_CSD_GET_FILEFORMAT(Response) ((Response[0] >> 10) & 0x3)
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#define MMC_CSD_GET_FILEFORMATGRP(Response) ((Response[0] >> 15) & 0x1)
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#define MMC_CSD_GET_DEVICESIZE(csd) (((Response[1] >> 30) & 0x3) | ((Response[2] & 0x3FF) << 2))
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#define HC_MMC_CSD_GET_DEVICESIZE(Response) ((Response[1] >> 16) | ((Response[2] & 0x40) << 16));
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#define MMC_CSD_GET_DEVICESIZEMULT(csd) ((Response[1] >> 15) & 0x7)
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#define MMC_R0_READY_FOR_DATA (1 << 8)
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#define MMC_R0_CURRENTSTATE(Response) ((Response[0] >> 9) & 0xF)
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#define MMC_R0_STATE_IDLE 0
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#define MMC_R0_STATE_READY 1
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#define MMC_R0_STATE_IDENT 2
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#define MMC_R0_STATE_STDBY 3
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#define MMC_R0_STATE_TRAN 4
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#define MMC_R0_STATE_DATA 5
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typedef enum {
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UNKNOWN_CARD,
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MMC_CARD, //MMC card
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MMC_CARD_HIGH, //MMC Card with High capacity
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SD_CARD, //SD 1.1 card
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SD_CARD_2, //SD 2.0 or above standard card
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SD_CARD_2_HIGH //SD 2.0 or above high capacity card
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} CARD_TYPE;
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typedef struct {
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UINT32 Reserved0: 7; // 0
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UINT32 V170_V195: 1; // 1.70V - 1.95V
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UINT32 V200_V260: 7; // 2.00V - 2.60V
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UINT32 V270_V360: 9; // 2.70V - 3.60V
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UINT32 RESERVED_1: 5; // Reserved
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UINT32 AccessMode: 2; // 00b (byte mode), 10b (sector mode)
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UINT32 Busy: 1; // This bit is set to LOW if the card has not finished the power up routine
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} OCR;
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typedef struct {
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UINT32 NOT_USED; // 1 [0:0]
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UINT32 CRC; // CRC7 checksum [7:1]
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UINT32 MDT; // Manufacturing date [19:8]
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UINT32 RESERVED_1; // Reserved [23:20]
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UINT32 PSN; // Product serial number [55:24]
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UINT8 PRV; // Product revision [63:56]
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UINT8 PNM[5]; // Product name [64:103]
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UINT16 OID; // OEM/Application ID [119:104]
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UINT8 MID; // Manufacturer ID [127:120]
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} CID;
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typedef struct {
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UINT8 NOT_USED: 1; // Not used, always 1 [0:0]
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UINT8 CRC: 7; // CRC [7:1]
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UINT8 RESERVED_1: 2; // Reserved [9:8]
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UINT8 FILE_FORMAT: 2; // File format [11:10]
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UINT8 TMP_WRITE_PROTECT: 1; // Temporary write protection [12:12]
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UINT8 PERM_WRITE_PROTECT: 1; // Permanent write protection [13:13]
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UINT8 COPY: 1; // Copy flag (OTP) [14:14]
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UINT8 FILE_FORMAT_GRP: 1; // File format group [15:15]
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UINT16 RESERVED_2: 5; // Reserved [20:16]
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UINT16 WRITE_BL_PARTIAL: 1; // Partial blocks for write allowed [21:21]
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UINT16 WRITE_BL_LEN: 4; // Max. write data block length [25:22]
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UINT16 R2W_FACTOR: 3; // Write speed factor [28:26]
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UINT16 RESERVED_3: 2; // Reserved [30:29]
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UINT16 WP_GRP_ENABLE: 1; // Write protect group enable [31:31]
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UINT32 WP_GRP_SIZE: 7; // Write protect group size [38:32]
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UINT32 SECTOR_SIZE: 7; // Erase sector size [45:39]
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UINT32 ERASE_BLK_EN: 1; // Erase single block enable [46:46]
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UINT32 C_SIZE_MULT: 3; // Device size multiplier [49:47]
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UINT32 VDD_W_CURR_MAX: 3; // Max. write current @ VDD max [52:50]
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UINT32 VDD_W_CURR_MIN: 3; // Max. write current @ VDD min [55:53]
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UINT32 VDD_R_CURR_MAX: 3; // Max. read current @ VDD max [58:56]
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UINT32 VDD_R_CURR_MIN: 3; // Max. read current @ VDD min [61:59]
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UINT32 C_SIZELow2: 2; // Device size [63:62]
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UINT32 C_SIZEHigh10: 10;// Device size [73:64]
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UINT32 RESERVED_4: 2; // Reserved [75:74]
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UINT32 DSR_IMP: 1; // DSR implemented [76:76]
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UINT32 READ_BLK_MISALIGN: 1; // Read block misalignment [77:77]
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UINT32 WRITE_BLK_MISALIGN: 1; // Write block misalignment [78:78]
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UINT32 READ_BL_PARTIAL: 1; // Partial blocks for read allowed [79:79]
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UINT32 READ_BL_LEN: 4; // Max. read data block length [83:80]
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UINT32 CCC: 12;// Card command classes [95:84]
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UINT8 TRAN_SPEED ; // Max. bus clock frequency [103:96]
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UINT8 NSAC ; // Data read access-time 2 in CLK cycles (NSAC*100) [111:104]
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UINT8 TAAC ; // Data read access-time 1 [119:112]
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UINT8 RESERVED_5: 6; // Reserved [125:120]
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UINT8 CSD_STRUCTURE: 2; // CSD structure [127:126]
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} CSD;
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typedef struct {
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UINT16 RCA;
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CARD_TYPE CardType;
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OCR OCRData;
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CID CIDData;
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CSD CSDData;
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} CARD_INFO;
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typedef struct _MMC_HOST_INSTANCE {
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UINTN Signature;
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LIST_ENTRY Link;
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EFI_HANDLE MmcHandle;
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EFI_DEVICE_PATH_PROTOCOL *DevicePath;
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MMC_STATE State;
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EFI_BLOCK_IO_PROTOCOL BlockIo;
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CARD_INFO CardInfo;
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EFI_MMC_HOST_PROTOCOL *MmcHost;
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BOOLEAN Initialized;
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} MMC_HOST_INSTANCE;
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#define MMC_HOST_INSTANCE_SIGNATURE SIGNATURE_32('m', 'm', 'c', 'h')
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#define MMC_HOST_INSTANCE_FROM_BLOCK_IO_THIS(a) CR (a, MMC_HOST_INSTANCE, BlockIo, MMC_HOST_INSTANCE_SIGNATURE)
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#define MMC_HOST_INSTANCE_FROM_LINK(a) CR (a, MMC_HOST_INSTANCE, Link, MMC_HOST_INSTANCE_SIGNATURE)
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EFI_STATUS
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EFIAPI
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MmcGetDriverName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN CHAR8 *Language,
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OUT CHAR16 **DriverName
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);
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EFI_STATUS
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EFIAPI
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MmcGetControllerName (
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IN EFI_COMPONENT_NAME_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_HANDLE ChildHandle OPTIONAL,
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IN CHAR8 *Language,
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OUT CHAR16 **ControllerName
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);
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extern EFI_COMPONENT_NAME_PROTOCOL gMmcComponentName;
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extern EFI_COMPONENT_NAME2_PROTOCOL gMmcComponentName2;
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extern EFI_DRIVER_DIAGNOSTICS2_PROTOCOL gMmcDriverDiagnostics2;
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extern LIST_ENTRY mMmcHostPool;
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/**
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Reset the block device.
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This function implements EFI_BLOCK_IO_PROTOCOL.Reset().
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It resets the block device hardware.
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ExtendedVerification is ignored in this implementation.
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@param This Indicates a pointer to the calling context.
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@param ExtendedVerification Indicates that the driver may perform a more exhaustive
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verification operation of the device during reset.
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@retval EFI_SUCCESS The block device was reset.
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@retval EFI_DEVICE_ERROR The block device is not functioning correctly and could not be reset.
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**/
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EFI_STATUS
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EFIAPI
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MmcReset (
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IN EFI_BLOCK_IO_PROTOCOL *This,
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IN BOOLEAN ExtendedVerification
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);
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/**
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Reads the requested number of blocks from the device.
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This function implements EFI_BLOCK_IO_PROTOCOL.ReadBlocks().
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It reads the requested number of blocks from the device.
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All the blocks are read, or an error is returned.
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@param This Indicates a pointer to the calling context.
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@param MediaId The media ID that the read request is for.
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@param Lba The starting logical block address to read from on the device.
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@param BufferSize The size of the Buffer in bytes.
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This must be a multiple of the intrinsic block size of the device.
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@param Buffer A pointer to the destination buffer for the data. The caller is
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responsible for either having implicit or explicit ownership of the buffer.
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@retval EFI_SUCCESS The data was read correctly from the device.
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@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the read operation.
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@retval EFI_NO_MEDIA There is no media in the device.
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@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
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@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic block size of the device.
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@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not valid,
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or the buffer is not on proper alignment.
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**/
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EFI_STATUS
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EFIAPI
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MmcReadBlocks (
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IN EFI_BLOCK_IO_PROTOCOL *This,
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IN UINT32 MediaId,
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IN EFI_LBA Lba,
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IN UINTN BufferSize,
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OUT VOID *Buffer
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);
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/**
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Writes a specified number of blocks to the device.
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This function implements EFI_BLOCK_IO_PROTOCOL.WriteBlocks().
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It writes a specified number of blocks to the device.
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All blocks are written, or an error is returned.
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@param This Indicates a pointer to the calling context.
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@param MediaId The media ID that the write request is for.
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@param Lba The starting logical block address to be written.
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@param BufferSize The size of the Buffer in bytes.
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This must be a multiple of the intrinsic block size of the device.
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@param Buffer Pointer to the source buffer for the data.
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@retval EFI_SUCCESS The data were written correctly to the device.
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@retval EFI_WRITE_PROTECTED The device cannot be written to.
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@retval EFI_NO_MEDIA There is no media in the device.
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@retval EFI_MEDIA_CHANGED The MediaId is not for the current media.
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@retval EFI_DEVICE_ERROR The device reported an error while attempting to perform the write operation.
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@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of the intrinsic
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block size of the device.
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@retval EFI_INVALID_PARAMETER The write request contains LBAs that are not valid,
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or the buffer is not on proper alignment.
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**/
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EFI_STATUS
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EFIAPI
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MmcWriteBlocks (
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IN EFI_BLOCK_IO_PROTOCOL *This,
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IN UINT32 MediaId,
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IN EFI_LBA Lba,
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IN UINTN BufferSize,
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IN VOID *Buffer
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);
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/**
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Flushes all modified data to a physical block device.
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@param This Indicates a pointer to the calling context.
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@retval EFI_SUCCESS All outstanding data were written correctly to the device.
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@retval EFI_DEVICE_ERROR The device reported an error while attempting to write data.
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@retval EFI_NO_MEDIA There is no media in the device.
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**/
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EFI_STATUS
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EFIAPI
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MmcFlushBlocks (
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IN EFI_BLOCK_IO_PROTOCOL *This
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);
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EFI_STATUS InitializeMmcDevice (
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IN MMC_HOST_INSTANCE *MmcHost
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);
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VOID
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EFIAPI
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CheckCardsCallback (
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IN EFI_EVENT Event,
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IN VOID *Context
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);
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#endif
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