source: rtems/c/src/lib/libbsp/arm/nds/libnds/source/common/card.c @ 9b4422a2

4.115
Last change on this file since 9b4422a2 was 9b4422a2, checked in by Joel Sherrill <joel.sherrill@…>, on 05/03/12 at 15:09:24

Remove All CVS Id Strings Possible Using a Script

Script does what is expected and tries to do it as
smartly as possible.

+ remove occurrences of two blank comment lines

next to each other after Id string line removed.

+ remove entire comment blocks which only exited to

contain CVS Ids

+ If the processing left a blank line at the top of

a file, it was removed.
  • Property mode set to 100644
File size: 12.3 KB
RevLine 
[49a40165]1/*---------------------------------------------------------------------------------
2        Copyright (C) 2005
3                Michael Noland (joat)
4                Jason Rogers (dovoto)
5                Dave Murphy (WinterMute)
6
7        This software is provided 'as-is', without any express or implied
8        warranty.  In no event will the authors be held liable for any
9        damages arising from the use of this software.
10
11        Permission is granted to anyone to use this software for any
12        purpose, including commercial applications, and to alter it and
13        redistribute it freely, subject to the following restrictions:
14
15        1.      The origin of this software must not be misrepresented; you
16                must not claim that you wrote the original software. If you use
17                this software in a product, an acknowledgment in the product
18                documentation would be appreciated but is not required.
19        2.      Altered source versions must be plainly marked as such, and
20                must not be misrepresented as being the original software.
21        3.      This notice may not be removed or altered from any source
22                distribution.
23
24
25---------------------------------------------------------------------------------*/
26#include "nds/card.h"
27#include "nds/dma.h"
28#include "nds/memory.h"
29
30
31//---------------------------------------------------------------------------------
32void cardWriteCommand(const uint8 * command) {
33//---------------------------------------------------------------------------------
34        int index;
35
36        CARD_CR1H = CARD_CR1_ENABLE | CARD_CR1_IRQ;
37
38        for (index = 0; index < 8; index++) {
39                CARD_COMMAND[7-index] = command[index];
40        }
41}
42
43
44//---------------------------------------------------------------------------------
45void cardPolledTransfer(uint32 flags, uint32 * destination, uint32 length, const uint8 * command) {
46//---------------------------------------------------------------------------------
47        u32 data;;
48        cardWriteCommand(command);
49        CARD_CR2 = flags;
50        uint32 * target = destination + length;
51        do {
52                // Read data if available
53                if (CARD_CR2 & CARD_DATA_READY) {
54                        data=CARD_DATA_RD;
55                        if (destination < target)
56                                *destination = data;
57                        destination++;
58                }
59        } while (CARD_CR2 & CARD_BUSY);
60}
61
62
63//---------------------------------------------------------------------------------
64void cardStartTransfer(const uint8 * command, uint32 * destination, int channel, uint32 flags) {
65//---------------------------------------------------------------------------------
66        cardWriteCommand(command);
67
68        // Set up a DMA channel to transfer a word every time the card makes one
69        DMA_SRC(channel) = (uint32)&CARD_DATA_RD;
70        DMA_DEST(channel) = (uint32)destination;
71        DMA_CR(channel) = DMA_ENABLE | DMA_START_CARD | DMA_32_BIT | DMA_REPEAT | DMA_SRC_FIX | 0x0001;;
72
73        CARD_CR2 = flags;
74}
75
76
77//---------------------------------------------------------------------------------
78uint32 cardWriteAndRead(const uint8 * command, uint32 flags) {
79//---------------------------------------------------------------------------------
80        cardWriteCommand(command);
81        CARD_CR2 = flags | CARD_ACTIVATE | CARD_nRESET | 0x07000000;
82        while (!(CARD_CR2 & CARD_DATA_READY)) ;
83        return CARD_DATA_RD;
84}
85
86
87//---------------------------------------------------------------------------------
88void cardRead00(uint32 address, uint32 * destination, uint32 length, uint32 flags) {
89//---------------------------------------------------------------------------------f
90        uint8 command[8];
91        command[7] = 0;
92        command[6] = (address >> 24) & 0xff;
93        command[5] = (address >> 16) & 0xff;
94        command[4] = (address >> 8) & 0xff;
95        command[3] = address & 0xff;
96        command[2] = 0;
97        command[1] = 0;
98        command[0] = 0;
99        cardPolledTransfer(flags, destination, length, command);
100}
101
102
103//---------------------------------------------------------------------------------
104void cardReadHeader(uint8 * header) {
105//---------------------------------------------------------------------------------
106        cardRead00(0, (uint32 *)header, 512, 0xA93F1FFF);
107}
108
109
110//---------------------------------------------------------------------------------
111int cardReadID(uint32 flags) {
112//---------------------------------------------------------------------------------
113        uint8 command[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90};
114        return cardWriteAndRead(command, flags);
115}
116
117
118//---------------------------------------------------------------------------------
[9a85541]119static inline void EepromWaitBusy(void) {
[49a40165]120//---------------------------------------------------------------------------------
121        while (CARD_CR1 & /*BUSY*/0x80);
122}
123
124//---------------------------------------------------------------------------------
125uint8 cardEepromReadID(uint8 i) {
126//---------------------------------------------------------------------------------
127    return cardEepromCommand(/*READID*/0xAB, i&1);
128}
129
130//---------------------------------------------------------------------------------
131uint8 cardEepromCommand(uint8 command, uint32 address) {
132//---------------------------------------------------------------------------------
133    uint8 retval;
134    int k;
135    CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
136
137    CARD_CR1 = 0xFFFF;
138    CARD_EEPDATA = command;
139
140    EepromWaitBusy();
141
142    CARD_EEPDATA = (address >> 16) & 0xFF;
143    EepromWaitBusy();
144
145    CARD_EEPDATA = (address >> 8) & 0xFF;
146    EepromWaitBusy();
147
148    CARD_EEPDATA = (address) & 0xFF;
149    EepromWaitBusy();
150
151    for(k=0;k<256;k++)
152    {
153        retval = CARD_EEPDATA;
154        if(retval!=0xFF)
155            break;
156        EepromWaitBusy();
157    }
158
159    CARD_CR1 = /*MODE*/0x40;
160    return retval;
161}
162
163//---------------------------------------------------------------------------------
164int cardEepromGetType(void)
165//---------------------------------------------------------------------------------
166{
167        uint8 c00;
168        uint8 c05;
169        uint8 c9f;
170        uint8 c03;
171
172#ifdef ARM9
173        sysSetBusOwners(BUS_OWNER_ARM9, BUS_OWNER_ARM9);
174#endif
175
176        c03=cardEepromCommand(0x03,0);
177        c05=cardEepromCommand(0x05,0);
178        c9f=cardEepromCommand(0x9f,0);
179        c00=cardEepromCommand(0x00,0);
180
[32b8506]181        if((c00==0x00) && (c9f==0x00)) return 0; // PassMe?
[49a40165]182        if((c00==0xff) && (c05==0xff) && (c9f==0xff))return -1;
183
184        if((c00==0xff) &&  (c05 & 0xFD) == 0xF0 && (c9f==0xff))return 1;
185        if((c00==0xff) &&  (c05 & 0xFD) == 0x00 && (c9f==0xff))return 2;
186        if((c00==0xff) &&  (c05 & 0xFD) == 0x00 && (c9f==0x00))return 3;
187        if((c00==0xff) &&  (c05 & 0xFD) == 0x00 && (c9f==0x12))return 3;        //      NEW TYPE 3
188        if((c00==0xff) &&  (c05 & 0xFD) == 0x00 && (c9f==0x13))return 3;        //      NEW TYPE 3+  4Mbit
189        if((c00==0xff) &&  (c05 & 0xFD) == 0x00 && (c9f==0x14))return 3;        //      NEW TYPE 3++ 8Mbit MK4-FLASH Memory
190
191        return 0;
192}
193
194//---------------------------------------------------------------------------------
195uint32 cardEepromGetSize() {
196//---------------------------------------------------------------------------------
197
198    int type = cardEepromGetType();
199
200    if(type == -1)
201        return 0;
202    if(type == 0)
203        return 8192;
204    if(type == 1)
205        return 512;
206    if(type == 2) {
207        static const uint32 offset0 = (8*1024-1);        //      8KB
208        static const uint32 offset1 = (2*8*1024-1);      //      16KB
209        u8 buf1;     //      +0k data        read -> write
210        u8 buf2;     //      +8k data        read -> read
211        u8 buf3;     //      +0k ~data          write
212        u8 buf4;     //      +8k data new    comp buf2
213        cardReadEeprom(offset0,&buf1,1,type);
214        cardReadEeprom(offset1,&buf2,1,type);
215        buf3=~buf1;
216        cardWriteEeprom(offset0,&buf3,1,type);
217        cardReadEeprom (offset1,&buf4,1,type);
218        cardWriteEeprom(offset0,&buf1,1,type);
219        if(buf4!=buf2)      //      +8k
220            return 8*1024;  //       8KB(64kbit)
221        else
222            return 64*1024; //      64KB(512kbit)
223    }
224    if(type == 3) {
225        uint8 c9f;
226        c9f=cardEepromCommand(0x9f,0);
227
[32b8506]228        if(c9f==0x14)
[49a40165]229            return 1024*1024; //   NEW TYPE 3++ 8Mbit(1024KByte)
230
[32b8506]231        if(c9f==0x13)
[49a40165]232            return 512*1024;  //   NEW TYPE 3+ 4Mbit(512KByte)
233
234        return 256*1024;      //   TYPE 3  2Mbit(256KByte)
235    }
236
237    return 0;
238}
239
240
241//---------------------------------------------------------------------------------
242void cardReadEeprom(uint32 address, uint8 *data, uint32 length, uint32 addrtype) {
243//---------------------------------------------------------------------------------
244
245    CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
246    CARD_EEPDATA = 0x03 | ((addrtype == 1) ? address>>8<<3 : 0);
247    EepromWaitBusy();
248
249    if (addrtype == 3) {
250        CARD_EEPDATA = (address >> 16) & 0xFF;
251            EepromWaitBusy();
[32b8506]252    }
253
[49a40165]254    if (addrtype >= 2) {
255        CARD_EEPDATA = (address >> 8) & 0xFF;
256            EepromWaitBusy();
257    }
258
259
260        CARD_EEPDATA = (address) & 0xFF;
261    EepromWaitBusy();
262
263    while (length > 0) {
264        CARD_EEPDATA = 0;
265        EepromWaitBusy();
266        *data++ = CARD_EEPDATA;
267        length--;
268    }
269
270    EepromWaitBusy();
271    CARD_CR1 = /*MODE*/0x40;
272}
273
274
275//---------------------------------------------------------------------------------
276void cardWriteEeprom(uint32 address, uint8 *data, uint32 length, uint32 addrtype) {
277//---------------------------------------------------------------------------------
278
279        uint32 address_end = address + length;
280        int i;
281    int maxblocks = 32;
282    if(addrtype == 1) maxblocks = 16;
283    if(addrtype == 2) maxblocks = 32;
284    if(addrtype == 3) maxblocks = 256;
285
286        while (address < address_end) {
287                // set WEL (Write Enable Latch)
288                CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
289                CARD_EEPDATA = 0x06; EepromWaitBusy();
290                CARD_CR1 = /*MODE*/0x40;
291
292                // program maximum of 32 bytes
293                CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
294
295        if(addrtype == 1) {
296        //  WRITE COMMAND 0x02 + A8 << 3
297            CARD_EEPDATA = 0x02 | (address & BIT(8)) >> (8-3) ;
298            EepromWaitBusy();
299            CARD_EEPDATA = address & 0xFF;
300            EepromWaitBusy();
301        }
302        else if(addrtype == 2) {
303            CARD_EEPDATA = 0x02;
304            EepromWaitBusy();
305            CARD_EEPDATA = address >> 8;
306            EepromWaitBusy();
307            CARD_EEPDATA = address & 0xFF;
308            EepromWaitBusy();
309        }
310        else if(addrtype == 3) {
311            CARD_EEPDATA = 0x02;
312            EepromWaitBusy();
313            CARD_EEPDATA = (address >> 16) & 0xFF;
314            EepromWaitBusy();
315            CARD_EEPDATA = (address >> 8) & 0xFF;
316            EepromWaitBusy();
317            CARD_EEPDATA = address & 0xFF;
318            EepromWaitBusy();
319        }
320
[32b8506]321                for (i=0; address<address_end && i<maxblocks; i++, address++) {
322            CARD_EEPDATA = *data++;
323            EepromWaitBusy();
[49a40165]324        }
325                CARD_CR1 = /*MODE*/0x40;
326
327                // wait programming to finish
328                CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
329                CARD_EEPDATA = 0x05; EepromWaitBusy();
330                do { CARD_EEPDATA = 0; EepromWaitBusy(); } while (CARD_EEPDATA & 0x01); // WIP (Write In Progress) ?
331        EepromWaitBusy();
332        CARD_CR1 = /*MODE*/0x40;
333        }
334}
335
336
337//  Chip Erase : clear FLASH MEMORY (TYPE 3 ONLY)
338//---------------------------------------------------------------------------------
339void cardEepromChipErase(void) {
340//---------------------------------------------------------------------------------
341    int sz;
342    sz=cardEepromGetSize();
343    cardEepromSectorErase(0x00000);
344    cardEepromSectorErase(0x10000);
345    cardEepromSectorErase(0x20000);
346    cardEepromSectorErase(0x30000);
347    if(sz==512*1024)
348    {
349        cardEepromSectorErase(0x40000);
350        cardEepromSectorErase(0x50000);
351        cardEepromSectorErase(0x60000);
352        cardEepromSectorErase(0x70000);
353    }
354}
355
356//  COMMAND Sec.erase 0xD8
357void cardEepromSectorErase(uint32 address)
358{
359        // set WEL (Write Enable Latch)
360        CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
361        CARD_EEPDATA = 0x06;
362        EepromWaitBusy();
363
364        CARD_CR1 = /*MODE*/0x40;
365
366        // SectorErase 0xD8
367        CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
368        CARD_EEPDATA = 0xD8;
369        EepromWaitBusy();
370        CARD_EEPDATA = (address >> 16) & 0xFF;
371        EepromWaitBusy();
372        CARD_EEPDATA = (address >> 8) & 0xFF;
373        EepromWaitBusy();
374        CARD_EEPDATA = address & 0xFF;
375        EepromWaitBusy();
376
377        CARD_CR1 = /*MODE*/0x40;
378
379        // wait erase to finish
380        CARD_CR1 = /*E*/0x8000 | /*SEL*/0x2000 | /*MODE*/0x40;
381        CARD_EEPDATA = 0x05;
382        EepromWaitBusy();
383
384        do
385        {
386            CARD_EEPDATA = 0;
387            EepromWaitBusy();
388        } while (CARD_EEPDATA & 0x01);  // WIP (Write In Progress) ?
389        CARD_CR1 = /*MODE*/0x40;
390}
391
392
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