From d4eb5af332ce518baa552c886caa0bf3b2864f75 Mon Sep 17 00:00:00 2001 From: Kelly Rauchenberger Date: Tue, 11 Jul 2017 19:19:49 -0400 Subject: Major reformatting, cleaning up black magic --- gba/source/libSave.c | 596 --------------------------------------------------- 1 file changed, 596 deletions(-) delete mode 100644 gba/source/libSave.c (limited to 'gba/source/libSave.c') diff --git a/gba/source/libSave.c b/gba/source/libSave.c deleted file mode 100644 index e3bda1d..0000000 --- a/gba/source/libSave.c +++ /dev/null @@ -1,596 +0,0 @@ -/* - libSave - Cartridge backup memory save routines. To use, call the required - routine with a pointer to an appropriately sized array of data to - be read from or written to the cartridge. - Data types are from wintermute's gba_types.h libgba library. - Original file from SendSave by Chishm -*/ - -#include -#include -#include -#include - -#define EEPROM_ADDRESS (0xDFFFF00) -#define REG_EEPROM *(vu16 *)(EEPROM_ADDRESS) -#define REG_DMA3CNT_H *(vu16 *)(REG_BASE + 0x0de) -#define REG_WAITCNT *(vu16 *)(REG_BASE + 0x204) - -//----------------------------------------------------------------------- -// Common EEPROM Routines -//----------------------------------------------------------------------- - -void EEPROM_SendPacket( u16* packet, int size ) -{ - REG_WAITCNT = (REG_WAITCNT & 0xF8FF) | 0x0300; - REG_DMA3SAD = (u32)packet; - REG_DMA3DAD = EEPROM_ADDRESS; - REG_DMA3CNT = 0x80000000 + size; - while((REG_DMA3CNT_H & 0x8000) != 0) ; -} - -void EEPROM_ReceivePacket( u16* packet, int size ) -{ - REG_WAITCNT = (REG_WAITCNT & 0xF8FF) | 0x0300; - REG_DMA3SAD = EEPROM_ADDRESS; - REG_DMA3DAD = (u32)packet; - REG_DMA3CNT = 0x80000000 + size; - while((REG_DMA3CNT_H & 0x8000) != 0) ; -} - -//----------------------------------------------------------------------- -// Routines for 512B EEPROM -//----------------------------------------------------------------------- - -void EEPROM_Read_512B( volatile u8 offset, u8* dest ) // dest must point to 8 bytes -{ - u16 packet[68]; - u8* out_pos; - u16* in_pos; - u8 out_byte; - int byte, bit; - - memset( packet, 0, 68*2 ); - - // Read request - packet[0] = 1; - packet[1] = 1; - - // 6 bits eeprom address (MSB first) - packet[2] = (offset>>5)&1; - packet[3] = (offset>>4)&1; - packet[4] = (offset>>3)&1; - packet[5] = (offset>>2)&1; - packet[6] = (offset>>1)&1; - packet[7] = (offset)&1; - - // End of request - packet[8] = 0; - - // Do transfers - EEPROM_SendPacket( packet, 9 ); - memset( packet, 0, 68*2 ); - EEPROM_ReceivePacket( packet, 68 ); - - // Extract data - in_pos = &packet[4]; - out_pos = dest; - for( byte = 7; byte >= 0; --byte ) - { - out_byte = 0; - for( bit = 7; bit >= 0; --bit ) - { -// out_byte += (*in_pos++)<>5)&1; - packet[3] = (offset>>4)&1; - packet[4] = (offset>>3)&1; - packet[5] = (offset>>2)&1; - packet[6] = (offset>>1)&1; - packet[7] = (offset)&1; - - // Extract data - in_pos = source; - out_pos = &packet[8]; - for( byte = 7; byte >= 0; --byte ) - { - in_byte = *in_pos++; - for( bit = 7; bit >= 0; --bit ) - { - *out_pos++ = (in_byte>>bit)&1; - } - } - - // End of request - packet[72] = 0; - - // Do transfers - EEPROM_SendPacket( packet, 73 ); - - // Wait for EEPROM to finish (should timeout after 10 ms) - while( (REG_EEPROM & 1) == 0 ); -} - -//--------------------------------------------------------------------------------- -void GetSave_EEPROM_512B(u8* data) -//--------------------------------------------------------------------------------- -{ - volatile u8 x; - u32 sleep; - - for (x=0;x<64;++x){ - EEPROM_Read_512B(x,&data[x*8]); - for(sleep=0;sleep<512000;sleep++); - } -} - -//--------------------------------------------------------------------------------- -void PutSave_EEPROM_512B(u8* data) -//--------------------------------------------------------------------------------- -{ - volatile u8 x; - u32 sleep; - - for (x=0;x<64;x++){ - EEPROM_Write_512B(x,&data[x*8]); - for(sleep=0;sleep<512000;sleep++); - } -} -//----------------------------------------------------------------------- -// Routines for 8KB EEPROM -//----------------------------------------------------------------------- - -void EEPROM_Read_8KB( volatile u16 offset, u8* dest ) // dest must point to 8 bytes -{ - u16 packet[68]; - u8* out_pos; - u16* in_pos; - u8 out_byte; - int byte, bit; - - memset( packet, 0, 68*2 ); - - // Read request - packet[0] = 1; - packet[1] = 1; - - // 14 bits eeprom address (MSB first) - packet[2] = (offset>>13)&1; - packet[3] = (offset>>12)&1; - packet[4] = (offset>>11)&1; - packet[5] = (offset>>10)&1; - packet[6] = (offset>>9)&1; - packet[7] = (offset>>8)&1; - packet[8] = (offset>>7)&1; - packet[9] = (offset>>6)&1; - packet[10] = (offset>>5)&1; - packet[11] = (offset>>4)&1; - packet[12] = (offset>>3)&1; - packet[13] = (offset>>2)&1; - packet[14] = (offset>>1)&1; - packet[15] = (offset)&1; - - // End of request - packet[16] = 0; - - // Do transfers - EEPROM_SendPacket( packet, 17 ); - memset( packet, 0, 68*2 ); - EEPROM_ReceivePacket( packet, 68 ); - - // Extract data - in_pos = &packet[4]; - out_pos = dest; - for( byte = 7; byte >= 0; --byte ) - { - out_byte = 0; - for( bit = 7; bit >= 0; --bit ) - { -// out_byte += (*in_pos++)<>13)&1; - packet[3] = (offset>>12)&1; - packet[4] = (offset>>11)&1; - packet[5] = (offset>>10)&1; - packet[6] = (offset>>9)&1; - packet[7] = (offset>>8)&1; - packet[8] = (offset>>7)&1; - packet[9] = (offset>>6)&1; - packet[10] = (offset>>5)&1; - packet[11] = (offset>>4)&1; - packet[12] = (offset>>3)&1; - packet[13] = (offset>>2)&1; - packet[14] = (offset>>1)&1; - packet[15] = (offset)&1; - - // Extract data - in_pos = source; - out_pos = &packet[16]; - for( byte = 7; byte >= 0; --byte ) - { - in_byte = *in_pos++; - for( bit = 7; bit >= 0; --bit ) - { - *out_pos++ = (in_byte>>bit)&1; - } - } - - // End of request - packet[80] = 0; - - // Do transfers - EEPROM_SendPacket( packet, 81 ); - - // Wait for EEPROM to finish (should timeout after 10 ms) - while( (REG_EEPROM & 1) == 0 ); -} - -//--------------------------------------------------------------------------------- -void GetSave_EEPROM_8KB(u8* data) -//--------------------------------------------------------------------------------- -{ - volatile u16 x; - u32 sleep; - - for (x=0;x<1024;x++){ - EEPROM_Read_8KB(x,&data[x*8]); - for(sleep=0;sleep<512000;sleep++); - } - -} - -//--------------------------------------------------------------------------------- -void PutSave_EEPROM_8KB(u8* data) -//--------------------------------------------------------------------------------- -{ - volatile u16 x; - u32 sleep; - - for (x=0;x<1024;x++){ - EEPROM_Write_8KB(x,&data[x*8]); - for(sleep=0;sleep<512000;sleep++); - } -} - -//--------------------------------------------------------------------------------- -void GetSave_SRAM_32KB(u8* data) -//--------------------------------------------------------------------------------- -{ - volatile u8 *sram= (u8*) 0x0E000000; - volatile u16 x; - - for (x = 0; x < 0x8000; ++x) - { - data[x] = sram[x]; - } - -} - -//--------------------------------------------------------------------------------- -void PutSave_SRAM_32KB(u8* data) -//--------------------------------------------------------------------------------- -{ - volatile u8 *sram= (u8*) 0x0E000000; - volatile u16 x; - - for (x = 0; x < 0x8000; ++x) - { - sram[x] = data[x]; - } -} - -//--------------------------------------------------------------------------------- -void GetSave_FLASH_64KB(u8* data) -//--------------------------------------------------------------------------------- -{ - volatile u8 *sram= (u8*) 0x0E000000; - volatile u32 x; - - for (x = 0; x < 0x10000; ++x) - { - data[x] = sram[x]; - } -} - -//--------------------------------------------------------------------------------- -void PutSave_FLASH_64KB(u8* foo) -//--------------------------------------------------------------------------------- -{ - volatile u8 *fctrl0 = (u8*) 0xE005555; - volatile u8 *fctrl1 = (u8*) 0xE002AAA; - volatile u8 *fctrl2 = (u8*) 0xE000000; - - //init flash - *fctrl0 = 0xAA; - *fctrl1 = 0x55; - *fctrl0 = 0x90; - *fctrl2 = 0xF0; - - //erase chip - *fctrl0 = 0xAA; - *fctrl1 = 0x55; - *fctrl0 = 0x80; - *fctrl0 = 0xAA; - *fctrl1 = 0x55; - *fctrl0 = 0x10; - - //wait for erase done - u8 val1; - u8 val2; - val1 = *fctrl2; - val2 = *fctrl2; - while (val1 != val2) { - val1 = *fctrl2; - val2 = *fctrl2; - } - val1 = *fctrl2; - val2 = *fctrl2; - while (val1 != val2) { - val1 = *fctrl2; - val2 = *fctrl2; - } - - volatile u8 *data = fctrl2; - u32 i; - //write data - for (i=0; i<65536; i++) { - *fctrl0 = 0xAA; - *fctrl1 = 0x55; - *fctrl0 = 0xA0; - data [i] = foo [ i ]; - val1 = data [ i ]; - val2 = data [ i ]; - - while (val1 != val2) { - val1 = data [ i ]; - val2 = data [ i ]; - } - val1 = data [ i ]; - val2 = data [ i ]; - while (val1 != val2) { - val1 = data [ i ]; - val2 = data [ i ]; - } - val1 = data [ i ]; - val2 = data [ i ]; - while (val1 != val2) { - val1 = data [ i ]; - val2 = data [ i ]; - } - } -} - -//--------------------------------------------------------------------------------- -void GetSave_FLASH_128KB(u8* data) -//--------------------------------------------------------------------------------- -{ - const u32 size = 0x10000; - - volatile u8 *fctrl0 = (u8*) 0xE005555; - volatile u8 *fctrl1 = (u8*) 0xE002AAA; - volatile u8 *fctrl2 = (u8*) 0xE000000; - volatile u32 i; - volatile u8 *sram= (u8*) 0x0E000000; - - //init flash - *fctrl0 = 0xAA; - *fctrl1 = 0x55; - *fctrl0 = 0x90; - *fctrl2 = 0xF0; - - // read first bank - *fctrl0 = 0xAA; - *fctrl1 = 0x55; - *fctrl0 = 0xB0; - *fctrl2 = 0x00; - - for (i=0; i=0;x--){ - switch (pak[x]) { - case 0x53414C46: - if (pak[x+1] == 0x5F4D3148){ - return 0x20000; // FLASH_128KB - } else if ((pak[x+1] & 0x0000FFFF) == 0x00005F48){ - return 0x10000; // FLASH_64KB - } else if (pak[x+1] == 0x32313548){ - return 0x10000; // FLASH_64KB - } - break; - case 0x52504545: - if ((pak[x+1] & 0x00FFFFFF) == 0x005F4D4F){ - GetSave_EEPROM_8KB(data); - for(i = 8; i < 0x800; i += 8) { - if(memcmp(data, data+i, 8) != 0) - return 0x2000; // EEPROM_8KB - } - return 0x200; // EEPROM_512B - } - break; - case 0x4D415253: - if ((pak[x+1] & 0x000000FF) == 0x0000005F){ - return 0x8000; // SRAM_32KB - } - } - } - return 0; -} - -- cgit 1.4.1