1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
|
/*---------------------------------------------------------------------------------
$Id$
Copyright (C) 2005
Michael Noland (joat)
Jason Rogers (dovoto)
Dave Murphy (WinterMute)
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any
damages arising from the use of this software.
Permission is granted to anyone to use this software for any
purpose, including commercial applications, and to alter it and
redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you
must not claim that you wrote the original software. If you use
this software in a product, an acknowledgment in the product
documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and
must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
---------------------------------------------------------------------------------*/
#include "nds/card.h"
#include "nds/dma.h"
#include "nds/memory.h"
//---------------------------------------------------------------------------------
void cardWriteCommand(const uint8 * command) {
//---------------------------------------------------------------------------------
int index;
CARD_CR1H = CARD_CR1_ENABLE | CARD_CR1_IRQ;
for (index = 0; index < 8; index++) {
CARD_COMMAND[7-index] = command[index];
}
}
//---------------------------------------------------------------------------------
void cardPolledTransfer(uint32 flags, uint32 * destination, uint32 length, const uint8 * command) {
//---------------------------------------------------------------------------------
u32 data;;
cardWriteCommand(command);
CARD_CR2 = flags;
uint32 * target = destination + length;
do {
// Read data if available
if (CARD_CR2 & CARD_DATA_READY) {
data=CARD_DATA_RD;
if (destination < target)
*destination = data;
destination++;
}
} while (CARD_CR2 & CARD_BUSY);
}
//---------------------------------------------------------------------------------
void cardStartTransfer(const uint8 * command, uint32 * destination, int channel, uint32 flags) {
//---------------------------------------------------------------------------------
cardWriteCommand(command);
// Set up a DMA channel to transfer a word every time the card makes one
DMA_SRC(channel) = (uint32)&CARD_DATA_RD;
DMA_DEST(channel) = (uint32)destination;
DMA_CR(channel) = DMA_ENABLE | DMA_START_CARD | DMA_32_BIT | DMA_REPEAT | DMA_SRC_FIX | 0x0001;;
CARD_CR2 = flags;
}
//---------------------------------------------------------------------------------
uint32 cardWriteAndRead(const uint8 * command, uint32 flags) {
//---------------------------------------------------------------------------------
cardWriteCommand(command);
CARD_CR2 = flags | CARD_ACTIVATE | CARD_nRESET | 0x07000000;
while (!(CARD_CR2 & CARD_DATA_READY)) ;
return CARD_DATA_RD;
}
//---------------------------------------------------------------------------------
void cardRead00(uint32 address, uint32 * destination, uint32 length, uint32 flags) {
//---------------------------------------------------------------------------------f
uint8 command[8];
command[7] = 0;
command[6] = (address >> 24) & 0xff;
command[5] = (address >> 16) & 0xff;
command[4] = (address >> 8) & 0xff;
command[3] = address & 0xff;
command[2] = 0;
command[1] = 0;
command[0] = 0;
cardPolledTransfer(flags, destination, length, command);
}
//---------------------------------------------------------------------------------
void cardReadHeader(uint8 * header) {
//---------------------------------------------------------------------------------
cardRead00(0, (uint32 *)header, 512, 0xA93F1FFF);
}
//---------------------------------------------------------------------------------
int cardReadID(uint32 flags) {
//---------------------------------------------------------------------------------
uint8 command[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90};
return cardWriteAndRead(command, flags);
}
//---------------------------------------------------------------------------------
static inline void EepromWaitBusy(void) {
//---------------------------------------------------------------------------------
while (CARD_CR1 & /*BUSY*/0x80);
}
//---------------------------------------------------------------------------------
uint8 cardEepromReadID(uint8 i) {
//---------------------------------------------------------------------------------
return cardEepromCommand(/*READID*/0xAB, i&1);
}
//---------------------------------------------------------------------------------
uint8 cardEepromCommand(uint8 command, uint32 address) {
//---------------------------------------------------------------------------------
uint8 retval;
int k;
CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
CARD_CR1 = 0xFFFF;
CARD_EEPDATA = command;
EepromWaitBusy();
CARD_EEPDATA = (address >> 16) & 0xFF;
EepromWaitBusy();
CARD_EEPDATA = (address >> 8) & 0xFF;
EepromWaitBusy();
CARD_EEPDATA = (address) & 0xFF;
EepromWaitBusy();
for(k=0;k<256;k++)
{
retval = CARD_EEPDATA;
if(retval!=0xFF)
break;
EepromWaitBusy();
}
CARD_CR1 = /*MODE*/0x40;
return retval;
}
//---------------------------------------------------------------------------------
int cardEepromGetType(void)
//---------------------------------------------------------------------------------
{
uint8 c00;
uint8 c05;
uint8 c9f;
uint8 c03;
#ifdef ARM9
sysSetBusOwners(BUS_OWNER_ARM9, BUS_OWNER_ARM9);
#endif
c03=cardEepromCommand(0x03,0);
c05=cardEepromCommand(0x05,0);
c9f=cardEepromCommand(0x9f,0);
c00=cardEepromCommand(0x00,0);
if((c00==0x00) && (c9f==0x00)) return 0; // PassMe?
if((c00==0xff) && (c05==0xff) && (c9f==0xff))return -1;
if((c00==0xff) && (c05 & 0xFD) == 0xF0 && (c9f==0xff))return 1;
if((c00==0xff) && (c05 & 0xFD) == 0x00 && (c9f==0xff))return 2;
if((c00==0xff) && (c05 & 0xFD) == 0x00 && (c9f==0x00))return 3;
if((c00==0xff) && (c05 & 0xFD) == 0x00 && (c9f==0x12))return 3; // NEW TYPE 3
if((c00==0xff) && (c05 & 0xFD) == 0x00 && (c9f==0x13))return 3; // NEW TYPE 3+ 4Mbit
if((c00==0xff) && (c05 & 0xFD) == 0x00 && (c9f==0x14))return 3; // NEW TYPE 3++ 8Mbit MK4-FLASH Memory
return 0;
}
//---------------------------------------------------------------------------------
uint32 cardEepromGetSize() {
//---------------------------------------------------------------------------------
int type = cardEepromGetType();
if(type == -1)
return 0;
if(type == 0)
return 8192;
if(type == 1)
return 512;
if(type == 2) {
static const uint32 offset0 = (8*1024-1); // 8KB
static const uint32 offset1 = (2*8*1024-1); // 16KB
u8 buf1; // +0k data read -> write
u8 buf2; // +8k data read -> read
u8 buf3; // +0k ~data write
u8 buf4; // +8k data new comp buf2
cardReadEeprom(offset0,&buf1,1,type);
cardReadEeprom(offset1,&buf2,1,type);
buf3=~buf1;
cardWriteEeprom(offset0,&buf3,1,type);
cardReadEeprom (offset1,&buf4,1,type);
cardWriteEeprom(offset0,&buf1,1,type);
if(buf4!=buf2) // +8k
return 8*1024; // 8KB(64kbit)
else
return 64*1024; // 64KB(512kbit)
}
if(type == 3) {
uint8 c9f;
c9f=cardEepromCommand(0x9f,0);
if(c9f==0x14)
return 1024*1024; // NEW TYPE 3++ 8Mbit(1024KByte)
if(c9f==0x13)
return 512*1024; // NEW TYPE 3+ 4Mbit(512KByte)
return 256*1024; // TYPE 3 2Mbit(256KByte)
}
return 0;
}
//---------------------------------------------------------------------------------
void cardReadEeprom(uint32 address, uint8 *data, uint32 length, uint32 addrtype) {
//---------------------------------------------------------------------------------
CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
CARD_EEPDATA = 0x03 | ((addrtype == 1) ? address>>8<<3 : 0);
EepromWaitBusy();
if (addrtype == 3) {
CARD_EEPDATA = (address >> 16) & 0xFF;
EepromWaitBusy();
}
if (addrtype >= 2) {
CARD_EEPDATA = (address >> 8) & 0xFF;
EepromWaitBusy();
}
CARD_EEPDATA = (address) & 0xFF;
EepromWaitBusy();
while (length > 0) {
CARD_EEPDATA = 0;
EepromWaitBusy();
*data++ = CARD_EEPDATA;
length--;
}
EepromWaitBusy();
CARD_CR1 = /*MODE*/0x40;
}
//---------------------------------------------------------------------------------
void cardWriteEeprom(uint32 address, uint8 *data, uint32 length, uint32 addrtype) {
//---------------------------------------------------------------------------------
uint32 address_end = address + length;
int i;
int maxblocks = 32;
if(addrtype == 1) maxblocks = 16;
if(addrtype == 2) maxblocks = 32;
if(addrtype == 3) maxblocks = 256;
while (address < address_end) {
// set WEL (Write Enable Latch)
CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
CARD_EEPDATA = 0x06; EepromWaitBusy();
CARD_CR1 = /*MODE*/0x40;
// program maximum of 32 bytes
CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
if(addrtype == 1) {
// WRITE COMMAND 0x02 + A8 << 3
CARD_EEPDATA = 0x02 | (address & BIT(8)) >> (8-3) ;
EepromWaitBusy();
CARD_EEPDATA = address & 0xFF;
EepromWaitBusy();
}
else if(addrtype == 2) {
CARD_EEPDATA = 0x02;
EepromWaitBusy();
CARD_EEPDATA = address >> 8;
EepromWaitBusy();
CARD_EEPDATA = address & 0xFF;
EepromWaitBusy();
}
else if(addrtype == 3) {
CARD_EEPDATA = 0x02;
EepromWaitBusy();
CARD_EEPDATA = (address >> 16) & 0xFF;
EepromWaitBusy();
CARD_EEPDATA = (address >> 8) & 0xFF;
EepromWaitBusy();
CARD_EEPDATA = address & 0xFF;
EepromWaitBusy();
}
for (i=0; address<address_end && i<maxblocks; i++, address++) {
CARD_EEPDATA = *data++;
EepromWaitBusy();
}
CARD_CR1 = /*MODE*/0x40;
// wait programming to finish
CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
CARD_EEPDATA = 0x05; EepromWaitBusy();
do { CARD_EEPDATA = 0; EepromWaitBusy(); } while (CARD_EEPDATA & 0x01); // WIP (Write In Progress) ?
EepromWaitBusy();
CARD_CR1 = /*MODE*/0x40;
}
}
// Chip Erase : clear FLASH MEMORY (TYPE 3 ONLY)
//---------------------------------------------------------------------------------
void cardEepromChipErase(void) {
//---------------------------------------------------------------------------------
int sz;
sz=cardEepromGetSize();
cardEepromSectorErase(0x00000);
cardEepromSectorErase(0x10000);
cardEepromSectorErase(0x20000);
cardEepromSectorErase(0x30000);
if(sz==512*1024)
{
cardEepromSectorErase(0x40000);
cardEepromSectorErase(0x50000);
cardEepromSectorErase(0x60000);
cardEepromSectorErase(0x70000);
}
}
// COMMAND Sec.erase 0xD8
void cardEepromSectorErase(uint32 address)
{
// set WEL (Write Enable Latch)
CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
CARD_EEPDATA = 0x06;
EepromWaitBusy();
CARD_CR1 = /*MODE*/0x40;
// SectorErase 0xD8
CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
CARD_EEPDATA = 0xD8;
EepromWaitBusy();
CARD_EEPDATA = (address >> 16) & 0xFF;
EepromWaitBusy();
CARD_EEPDATA = (address >> 8) & 0xFF;
EepromWaitBusy();
CARD_EEPDATA = address & 0xFF;
EepromWaitBusy();
CARD_CR1 = /*MODE*/0x40;
// wait erase to finish
CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
CARD_EEPDATA = 0x05;
EepromWaitBusy();
do
{
CARD_EEPDATA = 0;
EepromWaitBusy();
} while (CARD_EEPDATA & 0x01); // WIP (Write In Progress) ?
CARD_CR1 = /*MODE*/0x40;
}
|
