Luma3DS-3GX/source/fatfs/sdmmc/sdmmc.h

// Copyright 2014 Normmatt
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#pragma once

#include "common.h"

#define SDMMC_BASE              0x10006000u

#define REG_SDCMD               0x00
#define REG_SDPORTSEL           0x02
#define REG_SDCMDARG            0x04
#define REG_SDCMDARG0           0x04
#define REG_SDCMDARG1           0x06
#define REG_SDSTOP              0x08
#define REG_SDBLKCOUNT          0x0a

#define REG_SDRESP0             0x0c
#define REG_SDRESP1             0x0e
#define REG_SDRESP2             0x10
#define REG_SDRESP3             0x12
#define REG_SDRESP4             0x14
#define REG_SDRESP5             0x16
#define REG_SDRESP6             0x18
#define REG_SDRESP7             0x1a

#define REG_SDSTATUS0           0x1c
#define REG_SDSTATUS1           0x1e

#define REG_SDIRMASK0           0x20
#define REG_SDIRMASK1           0x22
#define REG_SDCLKCTL            0x24

#define REG_SDBLKLEN            0x26
#define REG_SDOPT               0x28
#define REG_SDFIFO              0x30

#define REG_SDDATACTL           0xd8
#define REG_SDRESET             0xe0
#define REG_SDPROTECTED         0xf6 //bit 0 determines if sd is protected or not?

#define REG_SDDATACTL32         0x100
#define REG_SDBLKLEN32          0x104
#define REG_SDBLKCOUNT32        0x108
#define REG_SDFIFO32            0x10C

#define REG_CLK_AND_WAIT_CTL    0x138
#define REG_RESET_SDIO          0x1e0

#define TMIO_STAT0_CMDRESPEND    0x0001
#define TMIO_STAT0_DATAEND       0x0004
#define TMIO_STAT0_CARD_REMOVE   0x0008
#define TMIO_STAT0_CARD_INSERT   0x0010
#define TMIO_STAT0_SIGSTATE      0x0020
#define TMIO_STAT0_WRPROTECT     0x0080
#define TMIO_STAT0_CARD_REMOVE_A 0x0100
#define TMIO_STAT0_CARD_INSERT_A 0x0200
#define TMIO_STAT0_SIGSTATE_A    0x0400
#define TMIO_STAT1_CMD_IDX_ERR   0x0001
#define TMIO_STAT1_CRCFAIL       0x0002
#define TMIO_STAT1_STOPBIT_ERR   0x0004
#define TMIO_STAT1_DATATIMEOUT   0x0008
#define TMIO_STAT1_RXOVERFLOW    0x0010
#define TMIO_STAT1_TXUNDERRUN    0x0020
#define TMIO_STAT1_CMDTIMEOUT    0x0040
#define TMIO_STAT1_RXRDY         0x0100
#define TMIO_STAT1_TXRQ          0x0200
#define TMIO_STAT1_ILL_FUNC      0x2000
#define TMIO_STAT1_CMD_BUSY      0x4000
#define TMIO_STAT1_ILL_ACCESS    0x8000

//Comes from TWLSDK mongoose.tef DWARF info
#define SDMC_NORMAL              0x00000000
#define SDMC_ERR_COMMAND         0x00000001
#define SDMC_ERR_CRC             0x00000002
#define SDMC_ERR_END             0x00000004
#define SDMC_ERR_TIMEOUT         0x00000008
#define SDMC_ERR_FIFO_OVF        0x00000010
#define SDMC_ERR_FIFO_UDF        0x00000020
#define SDMC_ERR_WP              0x00000040
#define SDMC_ERR_ABORT           0x00000080
#define SDMC_ERR_FPGA_TIMEOUT    0x00000100
#define SDMC_ERR_PARAM           0x00000200
#define SDMC_ERR_R1_STATUS       0x00000800
#define SDMC_ERR_NUM_WR_SECTORS  0x00001000
#define SDMC_ERR_RESET           0x00002000
#define SDMC_ERR_ILA             0x00004000
#define SDMC_ERR_INFO_DETECT     0x00008000

#define SDMC_STAT_ERR_UNKNOWN    0x00080000
#define SDMC_STAT_ERR_CC         0x00100000
#define SDMC_STAT_ERR_ECC_FAILED 0x00200000
#define SDMC_STAT_ERR_CRC        0x00800000
#define SDMC_STAT_ERR_OTHER      0xf9c70008

#define TMIO_MASK_ALL           0x837f031d

#define TMIO_MASK_GW            (TMIO_STAT1_ILL_ACCESS | TMIO_STAT1_CMDTIMEOUT | TMIO_STAT1_TXUNDERRUN | TMIO_STAT1_RXOVERFLOW | \
                                 TMIO_STAT1_DATATIMEOUT | TMIO_STAT1_STOPBIT_ERR | TMIO_STAT1_CRCFAIL | TMIO_STAT1_CMD_IDX_ERR)

#define TMIO_MASK_READOP  (TMIO_STAT1_RXRDY | TMIO_STAT1_DATAEND)
#define TMIO_MASK_WRITEOP (TMIO_STAT1_TXRQ | TMIO_STAT1_DATAEND)

typedef struct mmcdevice {
    u8* data;
    u32 size;
    u32 error;
    u16 stat0;
    u16 stat1;
    u32 ret[4];
    u32 initarg;
    u32 isSDHC;
    u32 clk;
    u32 SDOPT;
    u32 devicenumber;
    u32 total_size; //size in sectors of the device
    u32 res;
} mmcdevice;

/*int sdmmc_sdcard_init();
void sdmmc_sdcard_readsector(uint32_t sector_no, void *out);
void sdmmc_sdcard_readsectors(uint32_t sector_no, uint32_t numsectors, void *out);
void sdmmc_sdcard_writesector(uint32_t sector_no, void *in);
void sdmmc_sdcard_writesectors(uint32_t sector_no, uint32_t numsectors, void *in);
void sdmmc_blktransferinit();*/

void sdmmc_sdcard_init();
int sdmmc_sdcard_readsector(u32 sector_no, u8 *out);
int sdmmc_sdcard_readsectors(u32 sector_no, u32 numsectors, u8 *out);
int sdmmc_sdcard_writesector(u32 sector_no, u8 *in);
int sdmmc_sdcard_writesectors(u32 sector_no, u32 numsectors, u8 *in);

int sdmmc_nand_readsectors(u32 sector_no, u32 numsectors, u8 *out);
int sdmmc_nand_writesectors(u32 sector_no, u32 numsectors, u8 *in);

mmcdevice *getMMCDevice(int drive);

void InitSDMMC();
int Nand_Init();
int SD_Init();

static inline u16 sdmmc_read16(u16 reg) {
    return *(vu16*)(SDMMC_BASE + reg);
}

static inline void sdmmc_write16(u16 reg, u16 val) {
    *(vu16*)(SDMMC_BASE + reg) = val;
}

static inline u32 sdmmc_read32(u16 reg) {
    return *(vu32*)(SDMMC_BASE + reg);
}

static inline void sdmmc_write32(u16 reg, u32 val) {
    *(vu32*)(SDMMC_BASE + reg) = val;
}

static inline void sdmmc_mask16(u16 reg, const u16 clear, const u16 set) {
    u16 val = sdmmc_read16(reg);
    val &= ~clear;
    val |= set;
    sdmmc_write16(reg, val);
}

static inline void setckl(u32 data)
{
    sdmmc_mask16(REG_SDCLKCTL, 0x100, 0);
    sdmmc_mask16(REG_SDCLKCTL, 0x2FF, data & 0x2FF);
    sdmmc_mask16(REG_SDCLKCTL, 0x0, 0x100);
}