/** @file

Interface definition for EFI_SD_HOST_IO_PROTOCOL.

Copyright (c) 2013-2015 Intel Corporation.

SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef _SD_HOST_IO_H
#define _SD_HOST_IO_H

#include "SDCard.h"
#include "CEATA.h"


#define EFI_SD_HOST_IO_PROTOCOL_GUID  \
  { \
    0xb63f8ec7, 0xa9c9, 0x4472, {0xa4, 0xc0, 0x4d, 0x8b, 0xf3, 0x65, 0xcc, 0x51} \
  }

///
/// Forward reference for pure ANSI compatability
///
typedef struct _EFI_SD_HOST_IO_PROTOCOL EFI_SD_HOST_IO_PROTOCOL;



typedef enum {
  ResponseNo = 0,
  ResponseR1,
  ResponseR1b,
  ResponseR2,
  ResponseR3,
  ResponseR4,
  ResponseR5,
  ResponseR5b,
  ResponseR6,
  ResponseR7
}RESPONSE_TYPE;

typedef enum {
  NoData = 0,
  InData,
  OutData
}TRANSFER_TYPE;

typedef enum {
  Reset_Auto = 0,
  Reset_DAT,
  Reset_CMD,
  Reset_DAT_CMD,
  Reset_All
}RESET_TYPE;

#define PCI_SUBCLASS_SD_HOST_CONTROLLER           0x05
#define PCI_IF_STANDARD_HOST_NO_DMA               0x00
#define PCI_IF_STANDARD_HOST_SUPPORT_DMA          0x01

#define   SDHCI_SPEC_100                          0
#define   SDHCI_SPEC_200                          1
#define   SDHCI_SPEC_300                          2

//
//MMIO Registers definition for MMC/SDIO controller
//
#define  MMIO_DMAADR                              0x00
#define  MMIO_BLKSZ                               0x04
#define  MMIO_BLKCNT                              0x06
#define  MMIO_CMDARG                              0x08
#define  MMIO_XFRMODE                             0x0C
#define  MMIO_SDCMD                               0x0E
#define  MMIO_RESP                                0x10
#define  MMIO_BUFDATA                             0x20
#define  MMIO_PSTATE                              0x24
#define  MMIO_HOSTCTL                             0x28
#define  MMIO_PWRCTL                              0x29
#define  MMIO_BLKGAPCTL                           0x2A
#define  MMIO_WAKECTL                             0x2B
#define  MMIO_CLKCTL                              0x2C
#define   V_MMIO_CLKCTL_MAX_8BIT_FREQ_SEL           0x80
#define   V_MMIO_CLKCTL_MAX_10BIT_FREQ_SEL          0x3FF
#define   B_MMIO_CLKCTL_UPR_SDCLK_FREQ_SEL_MASK     0xC0

#define  MMIO_TOCTL                               0x2E
#define  MMIO_SWRST                               0x2F
#define  MMIO_NINTSTS                             0x30
#define  MMIO_ERINTSTS                            0x32
#define  MMIO_NINTEN                              0x34
#define  MMIO_ERINTEN                             0x36
#define  MMIO_NINTSIGEN                           0x38
#define  MMIO_ERINTSIGEN                          0x3A
#define  MMIO_AC12ERRSTS                          0x3C
#define  MMIO_HOSTCTL2                            0x3E
#define  MMIO_CAP                                 0x40
#define  MMIO_MCCAP                               0x48
#define  MMIO_SLTINTSTS                           0xFC
#define  MMIO_CTRLRVER                            0xFE
#define  MMIO_SRST                                0x1FC

//
// Protocol definitions
//

/**
  The main function used to send the command to the card inserted into the SD host slot.
  It will assemble the arguments to set the command register and wait for the command
  and transfer completed until timeout. Then it will read the response register to fill
  the ResponseData.

  @param  This                  A pointer to the EFI_SD_HOST_IO_PROTOCOL instance.
  @param  CommandIndex          The command index to set the command index field of command register.
  @param  Argument              Command argument to set the argument field of command register.
  @param  DataType              TRANSFER_TYPE, indicates no data, data in or data out.
  @param  Buffer                Contains the data read from / write to the device.
  @param  BufferSize            The size of the buffer.
  @param  ResponseType          RESPONSE_TYPE.
  @param  TimeOut               Time out value in 1 ms unit.
  @param  ResponseData          Depending on the ResponseType, such as CSD or card status.

  @retval EFI_SUCCESS
  @retval EFI_INVALID_PARAMETER
  @retval EFI_OUT_OF_RESOURCES
  @retval EFI_TIMEOUT
  @retval EFI_DEVICE_ERROR

**/

typedef
EFI_STATUS
(EFIAPI *EFI_SD_HOST_IO_PROTOCOL_SEND_COMMAND) (
  IN   EFI_SD_HOST_IO_PROTOCOL    *This,
  IN   UINT16                     CommandIndex,
  IN   UINT32                     Argument,
  IN   TRANSFER_TYPE              DataType,
  IN   UINT8                      *Buffer, OPTIONAL
  IN   UINT32                     BufferSize,
  IN   RESPONSE_TYPE              ResponseType,
  IN   UINT32                     TimeOut,
  OUT  UINT32                     *ResponseData OPTIONAL
  );

/**
  Set max clock frequency of the host, the actual frequency may not be the same as MaxFrequency.
  It depends on the max frequency the host can support, divider, and host speed mode.

  @param  This                  A pointer to the EFI_SD_HOST_IO_PROTOCOL instance.
  @param  MaxFrequency          Max frequency in HZ.

  @retval EFI_SUCCESS
  @retval EFI_TIMEOUT

**/

typedef
EFI_STATUS
(EFIAPI *EFI_SD_HOST_IO_PROTOCOL_SET_CLOCK_FREQUENCY) (
  IN  EFI_SD_HOST_IO_PROTOCOL    *This,
  IN  UINT32                     MaxFrequency
  );


/**
  Set bus width of the host controller

  @param  This                  A pointer to the EFI_SD_HOST_IO_PROTOCOL instance.
  @param  BusWidth              Bus width in 1, 4, 8 bits.

  @retval EFI_SUCCESS
  @retval EFI_INVALID_PARAMETER

**/

typedef
EFI_STATUS
(EFIAPI *EFI_SD_HOST_IO_PROTOCOL_SET_BUS_WIDTH) (
  IN  EFI_SD_HOST_IO_PROTOCOL    *This,
  IN  UINT32                     BusWidth
  );

/**
  Set voltage which could supported by the host controller.
  Support 0(Power off the host), 1.8V, 3.0V, 3.3V

  @param  This                  A pointer to the EFI_SD_HOST_IO_PROTOCOL instance.
  @param  Voltage               Units in 0.1 V.

  @retval EFI_SUCCESS
  @retval EFI_INVALID_PARAMETER

**/

typedef
EFI_STATUS
(EFIAPI *EFI_SD_HOST_IO_PROTOCOL_SET_HOST_VOLTAGE) (
  IN  EFI_SD_HOST_IO_PROTOCOL    *This,
  IN  UINT32                     Voltage
  );

/**
  Reset the host controller.

  @param  This                  A pointer to the EFI_SD_HOST_IO_PROTOCOL instance.
  @param  ResetAll              TRUE to reset all.

  @retval EFI_SUCCESS
  @retval EFI_TIMEOUT

**/

typedef
EFI_STATUS
(EFIAPI *EFI_SD_HOST_IO_PROTOCOL_RESET_SD_HOST) (
  IN  EFI_SD_HOST_IO_PROTOCOL    *This,
  IN  RESET_TYPE                 ResetType
  );

/**
  Enable auto stop on the host controller.

  @param  This                  A pointer to the EFI_SD_HOST_IO_PROTOCOL instance.
  @param  Enable                TRUE to enable, FALSE to disable.

  @retval EFI_SUCCESS
  @retval EFI_TIMEOUT

**/

typedef
EFI_STATUS
(EFIAPI *EFI_SD_HOST_IO_PROTOCOL_ENABLE_AUTO_STOP_CMD) (
  IN  EFI_SD_HOST_IO_PROTOCOL    *This,
  IN  BOOLEAN                    Enable
  );

/**
  Find whether these is a card inserted into the slot. If so init the host.
  If not, return EFI_NOT_FOUND.

  @param  This                  A pointer to the EFI_SD_HOST_IO_PROTOCOL instance.

  @retval EFI_SUCCESS
  @retval EFI_NOT_FOUND

**/

typedef
EFI_STATUS
(EFIAPI *EFI_SD_HOST_IO_PROTOCOL_DETECT_CARD_AND_INIT_HOST) (
  IN  EFI_SD_HOST_IO_PROTOCOL    *This
  );

/**
  Set the Block length on the host controller.

  @param  This                  A pointer to the EFI_SD_HOST_IO_PROTOCOL instance.
  @param  BlockLength           card supportes block length.

  @retval EFI_SUCCESS
  @retval EFI_TIMEOUT

**/

typedef
EFI_STATUS
(EFIAPI *EFI_SD_HOST_IO_PROTOCOL_SET_BLOCK_LENGTH) (
  IN  EFI_SD_HOST_IO_PROTOCOL    *This,
  IN  UINT32                     BlockLength
  );

/**
  Enable/Disable High Speed transfer mode

  @param  This                  A pointer to the EFI_SD_HOST_IO_PROTOCOL instance.
  @param  Enable                TRUE to Enable, FALSE to Disable

  @return EFI_SUCCESS
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SD_HOST_IO_PROTOCOL_HIGH_SPEED_MODE) (
  IN  EFI_SD_HOST_IO_PROTOCOL    *This,
  IN  BOOLEAN                    Enable
  );

typedef
EFI_STATUS
(EFIAPI *EFI_SD_HOST_IO_PROTOCOL_DUAL_DATARATE_MODE) (
  IN  EFI_SD_HOST_IO_PROTOCOL    *This,
  IN  BOOLEAN                    Enable
  );



#define EFI_SD_HOST_IO_PROTOCOL_REVISION_01          0x02


typedef struct {
  UINT32  HighSpeedSupport:    1;  //High speed supported
  UINT32  V18Support:          1;  //1.8V supported
  UINT32  V30Support:          1;  //3.0V supported
  UINT32  V33Support:          1;  //3.3V supported
  UINT32  Reserved0:           4;
  UINT32  HostVersion:         8;
  UINT32  BusWidth4:           1;  // 4 bit width
  UINT32  BusWidth8:           1;  // 8 bit width
  UINT32  Reserved1:           14;
  UINT32  BoundarySize;
}HOST_CAPABILITY;


//
// Interface structure for the SD HOST I/O Protocol
//
struct _EFI_SD_HOST_IO_PROTOCOL {
  UINT32                                             Revision;
  HOST_CAPABILITY                                    HostCapability;
  EFI_SD_HOST_IO_PROTOCOL_SEND_COMMAND               SendCommand;
  EFI_SD_HOST_IO_PROTOCOL_SET_CLOCK_FREQUENCY        SetClockFrequency;
  EFI_SD_HOST_IO_PROTOCOL_SET_BUS_WIDTH              SetBusWidth;
  EFI_SD_HOST_IO_PROTOCOL_SET_HOST_VOLTAGE           SetHostVoltage;
  EFI_SD_HOST_IO_PROTOCOL_RESET_SD_HOST              ResetSDHost;
  EFI_SD_HOST_IO_PROTOCOL_ENABLE_AUTO_STOP_CMD       EnableAutoStopCmd;
  EFI_SD_HOST_IO_PROTOCOL_DETECT_CARD_AND_INIT_HOST  DetectCardAndInitHost;
  EFI_SD_HOST_IO_PROTOCOL_SET_BLOCK_LENGTH           SetBlockLength;
  EFI_SD_HOST_IO_PROTOCOL_HIGH_SPEED_MODE            SetHighSpeedMode;
  EFI_SD_HOST_IO_PROTOCOL_DUAL_DATARATE_MODE         SetDDRMode;
};

extern EFI_GUID gEfiSDHostIoProtocolGuid;

#endif
