libctr9
Nintendo 3DS ARM9 library
sdmmc.h
1 #ifndef __SDMMC_H__
2 #define __SDMMC_H__
3 
4 #include <stdint.h>
5 #include <stdbool.h>
6 
7 #define SDMMC_BASE 0x10006000
8 
9 #define REG_SDCMD 0x00
10 #define REG_SDPORTSEL 0x02
11 #define REG_SDCMDARG 0x04
12 #define REG_SDCMDARG0 0x04
13 #define REG_SDCMDARG1 0x06
14 #define REG_SDSTOP 0x08
15 #define REG_SDBLKCOUNT 0x0a
16 
17 #define REG_SDRESP0 0x0c
18 #define REG_SDRESP1 0x0e
19 #define REG_SDRESP2 0x10
20 #define REG_SDRESP3 0x12
21 #define REG_SDRESP4 0x14
22 #define REG_SDRESP5 0x16
23 #define REG_SDRESP6 0x18
24 #define REG_SDRESP7 0x1a
25 
26 #define REG_SDSTATUS0 0x1c
27 #define REG_SDSTATUS1 0x1e
28 
29 #define REG_SDIRMASK0 0x20
30 #define REG_SDIRMASK1 0x22
31 #define REG_SDCLKCTL 0x24
32 
33 #define REG_SDBLKLEN 0x26
34 #define REG_SDOPT 0x28
35 #define REG_SDFIFO 0x30
36 
37 #define REG_DATACTL 0xd8
38 #define REG_SDRESET 0xe0
39 #define REG_SDPROTECTED 0xf6 //bit 0 determines if sd is protected or not?
40 
41 #define REG_DATACTL32 0x100
42 #define REG_SDBLKLEN32 0x104
43 #define REG_SDBLKCOUNT32 0x108
44 #define REG_SDFIFO32 0x10C
45 
46 #define REG_CLK_AND_WAIT_CTL 0x138
47 #define REG_RESET_SDIO 0x1e0
48 
49 #define TMIO_STAT0_CMDRESPEND 0x0001
50 #define TMIO_STAT0_DATAEND 0x0004
51 #define TMIO_STAT0_CARD_REMOVE 0x0008
52 #define TMIO_STAT0_CARD_INSERT 0x0010
53 #define TMIO_STAT0_SIGSTATE 0x0020
54 #define TMIO_STAT0_WRPROTECT 0x0080
55 #define TMIO_STAT0_CARD_REMOVE_A 0x0100
56 #define TMIO_STAT0_CARD_INSERT_A 0x0200
57 #define TMIO_STAT0_SIGSTATE_A 0x0400
58 #define TMIO_STAT1_CMD_IDX_ERR 0x0001
59 #define TMIO_STAT1_CRCFAIL 0x0002
60 #define TMIO_STAT1_STOPBIT_ERR 0x0004
61 #define TMIO_STAT1_DATATIMEOUT 0x0008
62 #define TMIO_STAT1_RXOVERFLOW 0x0010
63 #define TMIO_STAT1_TXUNDERRUN 0x0020
64 #define TMIO_STAT1_CMDTIMEOUT 0x0040
65 #define TMIO_STAT1_RXRDY 0x0100
66 #define TMIO_STAT1_TXRQ 0x0200
67 #define TMIO_STAT1_ILL_FUNC 0x2000
68 #define TMIO_STAT1_CMD_BUSY 0x4000
69 #define TMIO_STAT1_ILL_ACCESS 0x8000
70 
71 #define TMIO_MASK_ALL 0x837f031d
72 
73 #define TMIO_MASK_GW (TMIO_STAT1_ILL_ACCESS | TMIO_STAT1_CMDTIMEOUT | TMIO_STAT1_TXUNDERRUN | TMIO_STAT1_RXOVERFLOW | \
74  TMIO_STAT1_DATATIMEOUT | TMIO_STAT1_STOPBIT_ERR | TMIO_STAT1_CRCFAIL | TMIO_STAT1_CMD_IDX_ERR)
75 
76 #define TMIO_MASK_READOP (TMIO_STAT1_RXRDY | TMIO_STAT1_DATAEND)
77 #define TMIO_MASK_WRITEOP (TMIO_STAT1_TXRQ | TMIO_STAT1_DATAEND)
78 
79 #ifdef __cplusplus
80 extern "C" {
81 #endif
82 
83  typedef struct mmcdevice {
84  uint8_t* rData;
85  const uint8_t* tData;
86  uint32_t size;
87  uint32_t error;
88  uint16_t stat0;
89  uint16_t stat1;
90  uint32_t ret[4];
91  uint32_t initarg;
92  uint32_t isSDHC;
93  uint32_t clk;
94  uint32_t SDOPT;
95  uint32_t devicenumber;
96  uint32_t total_size; //size in sectors of the device
97  uint32_t res;
98  } mmcdevice;
99 
100  int sdmmc_sdcard_init();
101  int sdmmc_sdcard_readsector(uint32_t sector_no, uint8_t *out);
102  int sdmmc_sdcard_readsectors(uint32_t sector_no, uint32_t numsectors, uint8_t *out);
103  int sdmmc_sdcard_writesector(uint32_t sector_no, const uint8_t *in);
104  int sdmmc_sdcard_writesectors(uint32_t sector_no, uint32_t numsectors, const uint8_t *in);
105 
106  int sdmmc_nand_readsectors(uint32_t sector_no, uint32_t numsectors, uint8_t *out);
107  int sdmmc_nand_writesectors(uint32_t sector_no, uint32_t numsectors, const uint8_t *in);
108 
109  int sdmmc_get_cid(bool isNand, uint32_t *info);
110 
111  mmcdevice *getMMCDevice(int drive);
112 
113  void InitSD();
114  int Nand_Init();
115  int SD_Init();
116 
117 #ifdef __cplusplus
118 };
119 #endif
120 
121 //---------------------------------------------------------------------------------
122 static inline uint16_t sdmmc_read16(uint16_t reg) {
123 //---------------------------------------------------------------------------------
124  return *(volatile uint16_t*)(SDMMC_BASE + reg);
125 }
126 
127 //---------------------------------------------------------------------------------
128 static inline void sdmmc_write16(uint16_t reg, uint16_t val) {
129 //---------------------------------------------------------------------------------
130  *(volatile uint16_t*)(SDMMC_BASE + reg) = val;
131 }
132 
133 //---------------------------------------------------------------------------------
134 static inline uint32_t sdmmc_read32(uint16_t reg) {
135 //---------------------------------------------------------------------------------
136  return *(volatile uint32_t*)(SDMMC_BASE + reg);
137 }
138 
139 //---------------------------------------------------------------------------------
140 static inline void sdmmc_write32(uint16_t reg, uint32_t val) {
141 //---------------------------------------------------------------------------------
142  *(volatile uint32_t*)(SDMMC_BASE + reg) = val;
143 }
144 
145 //---------------------------------------------------------------------------------
146 static inline void sdmmc_mask16(uint16_t reg, const uint16_t clear, const uint16_t set) {
147 //---------------------------------------------------------------------------------
148  uint16_t val = sdmmc_read16(reg);
149  val &= ~clear;
150  val |= set;
151  sdmmc_write16(reg, val);
152 }
153 
154 static inline void setckl(uint32_t data)
155 {
156  sdmmc_mask16(REG_SDCLKCTL,0x100,0);
157  sdmmc_mask16(REG_SDCLKCTL,0x2FF,data&0x2FF);
158  sdmmc_mask16(REG_SDCLKCTL,0x0,0x100);
159 }
160 
161 #endif
mmcdevice
Definition: sdmmc.h:83