mirror of
https://github.com/Polprzewodnikowy/N64FlashcartMenu.git
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Remove and note N64 digital
(it was not yet used)
This commit is contained in:
Robin Jones
parent
91a6ae7a33
commit
3d77e24e58
@ -6,6 +6,8 @@
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* Be open source using preferably MIT licensed third party licensed libraries where possible.
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* Be open source using preferably MIT licensed third party licensed libraries where possible.
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* Be testable, where possible using CTest, but if not, in an emulated environment.
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* Be testable, where possible using CTest, but if not, in an emulated environment.
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* Encourage active development from community members and N64 FlashCart owners.
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* Encourage active development from community members and N64 FlashCart owners.
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* Support [PixelFX N64Digital](https://gitlab.com/pixelfx-public/n64-game-id)
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## Basic usage
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## Basic usage
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@ -1,110 +0,0 @@
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/*
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Based on libdragon
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This implementation does not disable interrupts during PIF operation!
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*/
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#include <stdint.h>
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#include <string.h>
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#include "pfxromid.h"
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#include "libdragon.h"
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#define SI_STATUS_DMA_BUSY (1 << 0)
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#define SI_STATUS_IO_BUSY (1 << 1)
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#define MEMORY_BARRIER() asm volatile ("" : : : "memory")
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#define cache_op(op, linesize) ({ \
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if (length) { \
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void *cur = (void*)((unsigned long)addr & ~(linesize-1)); \
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int count = (int)length + (addr-cur); \
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for (int i = 0; i < count; i += linesize) \
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asm ("\tcache %0,(%1)\n"::"i" (op), "r" (cur+i)); \
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} \
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})
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#define UncachedAddr(_addr) ((void *)(((unsigned long)(_addr))|0x20000000))
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typedef struct SI_regs_s {
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volatile void * DRAM_addr;
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volatile void * PIF_addr_read;
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uint32_t reserved1;
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uint32_t reserved2;
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volatile void * PIF_addr_write;
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uint32_t reserved3;
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uint32_t status;
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} SI_regs_t;
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static volatile struct SI_regs_s * const SI_regs = (struct SI_regs_s *)0xa4800000;
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static void * const PIF_RAM = (void *)0x1fc007c0;
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// Uses the libdragon header function!!!
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// static void data_cache_hit_writeback_invalidate(volatile void * addr, unsigned long length)
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// {
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// cache_op(0x15, 16);
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// }
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static void __SI_DMA_wait(void)
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{
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while (SI_regs->status & (SI_STATUS_DMA_BUSY | SI_STATUS_IO_BUSY));
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}
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static void __controller_exec_PIF(void *inblock) { //TODO: this is (nearly) the same as the RTC code (duplicate) use generic function or just libdragon?!)
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volatile uint64_t inblock_temp[8];
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volatile uint64_t outblock_temp[8];
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data_cache_hit_writeback_invalidate(inblock_temp, 64);
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memcpy(UncachedAddr(inblock_temp), inblock, 64);
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/* Be sure another thread doesn't get into a resource fight */
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disable_interrupts();
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__SI_DMA_wait();
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SI_regs->DRAM_addr = inblock_temp; // only cares about 23:0
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MEMORY_BARRIER();
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SI_regs->PIF_addr_write = PIF_RAM; // is it really ever anything else?
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MEMORY_BARRIER();
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__SI_DMA_wait();
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data_cache_hit_writeback_invalidate(outblock_temp, 64);
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SI_regs->DRAM_addr = outblock_temp;
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MEMORY_BARRIER();
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SI_regs->PIF_addr_read = PIF_RAM;
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MEMORY_BARRIER();
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__SI_DMA_wait();
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/* Now that we've copied, its safe to let other threads go */
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enable_interrupts();
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}
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static void send_raw_command(int controller, int command, int bytesout, unsigned char *out)
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{
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unsigned long long SI_read_controllers_block[8] = { 0, 0, 0, 0, 0, 0, 0, 1 };
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uint8_t *data = (uint8_t *)SI_read_controllers_block;
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data[controller + 0] = bytesout + 1;
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data[controller + 1] = 1;
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data[controller + 2] = command;
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memcpy( &data[controller + 3], out, bytesout );
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data[controller + 3 + bytesout] = 0xFE;
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data[controller + 3 + bytesout + 1] = 0xFF;
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__controller_exec_PIF(SI_read_controllers_block);
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}
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void pfx_send_game_id(uint8_t* crc_hi, uint8_t* crc_lo, uint8_t media_format, uint8_t country_id)
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{
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uint8_t out[10];
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memcpy(out, crc_hi, 4);
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memcpy(&out[4], crc_lo, 4);
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out[8] = media_format;
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out[9] = country_id;
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send_raw_command(0, 0x1D, sizeof(out), out);
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}
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@ -1,20 +0,0 @@
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/*
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** Copyright 2021 JonesAlmighty & PixelFx
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*/
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#ifndef __PIXELFX_ROMID_H
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#define __PIXELFX_ROMID_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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void pfx_send_game_id(uint8_t* crc_hi, uint8_t* crc_lo, uint8_t media_format, uint8_t country_id);
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#ifdef __cplusplus
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}
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#endif
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#endif
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