527 lines
12 KiB
C
527 lines
12 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "gcn64lib.h"
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#include "gc2n64_adapter.h"
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#include "hexdump.h"
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#include "ihex.h"
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#include "delay.h"
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int gc2n64_adapter_echotest(gcn64_hdl_t hdl, int channel, int verbose)
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{
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unsigned char cmd[30];
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unsigned char buf[30];
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int i, n;
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cmd[0] = 'R';
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cmd[1] = 0x00; // echo
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for (i=0; i<28; i++) {
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cmd[i+2] = 'A'+i;
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}
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n = gcn64lib_rawSiCommand(hdl, channel, cmd, sizeof(buf), buf, sizeof(buf));
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if (n<0) {
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return n;
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}
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if (verbose) {
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if ((n != sizeof(buf)) || memcmp(cmd, buf, sizeof(buf))) {
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printf("Test failed\n");
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printf(" Sent [%d]: ", (int)sizeof(cmd)); printHexBuf(cmd, sizeof(cmd));
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printf("Received [%d]: ", n); printHexBuf(buf, n);
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return -1;
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}
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}
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return (n!= sizeof(buf)) || memcmp(cmd, buf, sizeof(buf));
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}
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int gc2n64_adapter_getMapping(gcn64_hdl_t hdl, int channel, int id)
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{
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unsigned char buf[64];
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unsigned char cmd[4];
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int n;
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int mapping_size;
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cmd[0] = 'R';
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cmd[1] = 0x02; // Get mapping
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cmd[2] = id;
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cmd[3] = 0; // chunk 0 (size)
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n = gcn64lib_rawSiCommand(hdl, channel, cmd, 4, buf, 4);
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if (n<0)
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return n;
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if (n == 1) {
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int i, pos;
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mapping_size = buf[0];
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printf("Mapping %d size: %d\n", id, mapping_size);
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for (pos=0, i=0; pos<mapping_size; i++) {
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cmd[0] = 'R';
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cmd[1] = 0x02; // Get mapping
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cmd[2] = id;
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cmd[3] = i+1; // chunk 1 is first 32 byte block, 2nd is next 32 bytes, etc
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printf("Getting block %d\n", i+1);
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n = gcn64lib_rawSiCommand(hdl, channel, cmd, 4, buf + pos, 32);
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if (n<0) {
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return n;
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}
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printf("ret: %d\n", n);
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if (n==0)
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break;
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pos += n;
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}
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printf("Received %d bytes\n", pos);
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printHexBuf(buf, pos);
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}
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return 0;
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}
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void gc2n64_adapter_printInfo(struct gc2n64_adapter_info *inf)
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{
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if (!inf->in_bootloader) {
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printf("gc_to_n64 adapter info: {\n");
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printf("\tDefault mapping id: %d\n", inf->app.default_mapping_id);
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printf("\tDeadzone enabled: %d\n", inf->app.deadzone_enabled);
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printf("\tOld v1.5 conversion: %d\n", inf->app.old_v1_5_conversion);
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printf("\tFirmware version: %s\n", inf->app.version);
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} else {
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printf("gc_to_n64 adapter in bootloader mode: {\n");
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printf("\tBootloader firmware version: %s\n", inf->bootldr.version);
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printf("\tMCU page size: %d bytes\n", inf->bootldr.mcu_page_size);
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printf("\tBootloader code start address: 0x%04x\n", inf->bootldr.bootloader_start_address);
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}
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printf("}\n");
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}
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int gc2n64_adapter_getInfo(gcn64_hdl_t hdl, int channel, struct gc2n64_adapter_info *inf)
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{
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unsigned char buf[32];
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int n;
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buf[0] = 'R';
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buf[1] = 0x01; // Get device info
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n = gcn64lib_rawSiCommand(hdl, channel, buf, 2, buf, sizeof(buf));
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if (n<0)
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return n;
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if (n > 0) {
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// On N64, when receiving an all 0xFF reply, catch it here.
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if (buf[0] == 0xff)
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return -1;
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if (!inf)
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return 0;
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inf->in_bootloader = buf[0];
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if (!inf->in_bootloader) {
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inf->app.default_mapping_id = buf[2];
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inf->app.deadzone_enabled = buf[3];
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inf->app.old_v1_5_conversion = buf[4];
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inf->app.version[sizeof(inf->app.version)-1]=0;
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strncpy(inf->app.version, (char*)buf+10, sizeof(inf->app.version)-1);
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} else {
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inf->bootldr.mcu_page_size = buf[1];
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inf->bootldr.bootloader_start_address = buf[2] << 8 | buf[3];
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inf->bootldr.version[sizeof(inf->bootldr.version)-1]=0;
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strncpy(inf->bootldr.version, (char*)buf+10, sizeof(inf->bootldr.version)-1);
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}
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} else {
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printf("No answer (old version?)\n");
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return -1;
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}
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return 0;
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}
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int gc2n64_adapter_boot_isBusy(gcn64_hdl_t hdl, int channel)
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{
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unsigned char buf[64];
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int n;
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buf[0] = 'R';
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buf[1] = 0xf9;
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n = gcn64lib_rawSiCommand(hdl, channel, buf, 2, buf, 1);
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if (n<0)
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return n;
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if (n != 1) {
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return 2; // Busy inferred from lack of answer
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}
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if (buf[0] != 0x00) {
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return 1; // Busy
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}
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return 0; // Idle
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}
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int gc2n64_adapter_boot_waitNotBusy(gcn64_hdl_t hdl, int channel, int verbose)
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{
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char spinner[4] = { '|','/','-','\\' };
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int busy, no_reply_count=0;
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int c=0;
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while ((busy = gc2n64_adapter_boot_isBusy(hdl, channel)))
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{
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if (busy < 0) {
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return -1;
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}
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if (busy == 2) {
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no_reply_count++;
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if (no_reply_count > 200) {
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fprintf(stderr, "Adapter answer timeout\n");
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return -1;
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}
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}
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printf("%c\b", spinner[c%4]); fflush(stdout);
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c++;
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_delay_us(50000);
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}
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return 0;
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}
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int gc2n64_adapter_boot_eraseAll(gcn64_hdl_t hdl, int channel)
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{
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unsigned char buf[64];
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int n;
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buf[0] = 'R';
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buf[1] = 0xf0;
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n = gcn64lib_rawSiCommand(hdl, channel, buf, 2, buf, 1);
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if (n<0)
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return n;
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if (n != 1) {
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fprintf(stderr, "Invalid answer. %d bytes received.\n", n);
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return -1;
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}
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if (buf[0] != 0x00) {
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fprintf(stderr, "eraseAll request NACK!\n");
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return -1;
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}
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return 0;
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}
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int gc2n64_adapter_boot_readBlock(gcn64_hdl_t hdl, int channel, unsigned int block_id, unsigned char dst[32])
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{
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unsigned char buf[32];
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int n;
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buf[0] = 'R';
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buf[1] = 0xf1;
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buf[2] = block_id >> 8;
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buf[3] = block_id & 0xff;
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n = gcn64lib_rawSiCommand(hdl, channel, buf, 4, buf, sizeof(buf));
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if (n<0)
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return n;
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if (n != 32) {
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fprintf(stderr, "Invalid answer\n");
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return -1;
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}
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memcpy(dst, buf, 32);
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return 0;
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}
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int gc2n64_adapter_dumpFlash(gcn64_hdl_t hdl, int channel)
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{
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int i;
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unsigned char buf[0x10000];
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struct gc2n64_adapter_info inf;
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i = gc2n64_adapter_getInfo(hdl, channel, &inf);
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if (i)
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return i;
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if (!inf.in_bootloader) {
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fprintf(stderr, "dumpFlash: Nnot in bootloader\n");
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return -1;
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}
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// Atmega168 : 16K
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for (i=0; i<16*1024; i+= 32)
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{
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gc2n64_adapter_boot_readBlock(hdl, channel, i/32, buf + i);
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printf("0x%04x: ", i);
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printHexBuf(buf + i, 32);
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}
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return 0;
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}
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int gc2n64_adapter_enterBootloader(gcn64_hdl_t hdl, int channel)
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{
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unsigned char buf[4];
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int n;
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int t = 1000; // > 100ms timeout
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/* The bootloader starts the application automatically if it is
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* installed. To prevent the application from being restarted right
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* away when are entering the bootloader, the bootloader waits
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* 50 ms at startup, and if it receives the 'enter bootloader' command
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* within this window, the application is not started.
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*
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* Also, contrary to the application, the bootloader actually answers
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* this command. So it doubles as a handshake to know the bootloader has
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* started and is ready to receive instructions.
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*
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* */
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do {
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buf[0] = 'R';
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buf[1] = 0xff;
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n = gcn64lib_rawSiCommand(hdl, channel, buf, 2, buf, sizeof(buf));
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if (n<0) {
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return n;
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}
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if (buf[0] == 0xff && buf[1] == 0xff) {
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n = 0;
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}
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_delay_us(1000);
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t--;
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if (!t) {
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fprintf(stderr, "Timeout waiting for bootloader\n");
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return -1;
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}
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}
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while(n==0);
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return 0;
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}
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int gc2n64_adapter_bootApplication(gcn64_hdl_t hdl, int channel)
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{
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unsigned char buf[2];
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int n;
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buf[0] = 'R';
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buf[1] = 0xfe;
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n = gcn64lib_rawSiCommand(hdl, channel, buf, 2, buf, 1);
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if (n<0)
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return n;
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if (n != 1) {
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fprintf(stderr, "boot application: Invalid answer\n");
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return -1;
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}
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if (buf[0]) {
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fprintf(stderr, "Boot nack\n");
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return -1;
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}
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return 0;
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}
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// Note: eraseAll needs to be performed first
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int gc2n64_adapter_sendFirmwareBlocks(gcn64_hdl_t hdl, int channel, unsigned char *firmware, int len)
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{
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unsigned char buf[64];
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int i, block_id;
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int n;
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for (i=0; i<len; i+=32) {
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block_id = i / 32;
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buf[0] = 'R';
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buf[1] = 0xf2;
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buf[2] = block_id >> 8;
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buf[3] = block_id & 0xff;
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memcpy(buf + 4, firmware+i, 32);
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printf("Block %d / %d\r", block_id+1, len / 32); fflush(stdout);
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n = gcn64lib_rawSiCommand(hdl, channel, buf, 4 + 32, buf, 4);
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if (n<0) {
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fprintf(stderr, "\nRaw command failed\n");
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return n;
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}
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if (n != 4) {
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fprintf(stderr, "\nInvalid upload block answer\n");
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return -1;
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}
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// [0] ACK (should be 0x00)
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// [1] Need to poll?
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// [2] Block ID high
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// [3] Block ID low
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if (buf[0] != 0x00) {
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fprintf(stderr, "Busy\n");
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return -1;
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}
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if (buf[1]) {
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if (gc2n64_adapter_boot_waitNotBusy(hdl, channel, 1)) {
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fprintf(stderr, "Error waiting not busy\n");
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return -1;
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}
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}
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// printf("\n");
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// printf("Block ID: 0x%04x\n", (buf[2]<<8) | buf[3]);
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}
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return 0;
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}
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int gc2n64_adapter_verifyFirmware(gcn64_hdl_t hdl, int channel, unsigned char *firmware, int len)
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{
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unsigned char buf[32];
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int i;
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for (i=0; i<len; i+=32) {
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gc2n64_adapter_boot_readBlock(hdl, channel, i/32, buf);
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if (memcmp(buf, firmware + i, 32)) {
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printf("\nMismatch in block address 0x%04x\n", i);
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printf("Written: "); printHexBuf(firmware + i, 32);
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printf(" Read: "); printHexBuf(buf, 32);
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return -1;
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} else {
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printf("Block %d / %d ok\r", i/32 + 1, len / 32); fflush(stdout);
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}
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}
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return 0;
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}
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int gc2n64_adapter_waitForBootloader(gcn64_hdl_t hdl, int channel, int timeout_s)
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{
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struct gc2n64_adapter_info inf;
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int i;
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int n;
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for (i=0; i<=timeout_s; i++) {
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n = gc2n64_adapter_getInfo(hdl, channel, &inf);
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// Errors (caused by timeouts) are just ignored since they are expected.
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if (n == 0) {
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gc2n64_adapter_printInfo(&inf);
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if (inf.in_bootloader)
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return 0;
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}
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_delay_s(1);
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}
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return -1;
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}
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#define FIRMWARE_BUF_SIZE 0x10000
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int gc2n64_adapter_updateFirmware(gcn64_hdl_t hdl, int channel, const char *hexfile)
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{
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unsigned char *buf;
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int max_addr;
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int ret = 0, res;
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struct gc2n64_adapter_info inf;
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////////////////////
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printf("step [1/7] : Load .hex file...\n");
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buf = malloc(FIRMWARE_BUF_SIZE);
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if (!buf) {
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perror("malloc");
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return -1;
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}
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memset(buf, 0xff, FIRMWARE_BUF_SIZE);
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max_addr = load_ihex(hexfile, buf, FIRMWARE_BUF_SIZE);
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if (max_addr < 0) {
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fprintf(stderr, "Update failed : Could not load hex file\n");
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ret = -1;
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goto err;
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}
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printf("Firmware size: %d bytes\n", max_addr+1);
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////////////////////
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printf("step [2/7] : Get adapter info...\n");
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res = gc2n64_adapter_getInfo(hdl, channel, &inf);
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if (res < 0) {
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fprintf(stderr, "Failed to read adapter info\n");
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return -1;
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}
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gc2n64_adapter_printInfo(&inf);
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if (inf.in_bootloader) {
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printf("step [3/7] : Enter bootloader... Skipped. Already in bootloader.\n");
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} else {
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printf("step [3/7] : Enter bootloader...\n");
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res = gc2n64_adapter_enterBootloader(hdl, channel);
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if (res < 0) {
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fprintf(stderr, "Failed to enter the bootloader\n");
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return -1;
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}
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// Re-read the info structure, as we will need the bootloader start address.
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res = gc2n64_adapter_getInfo(hdl, channel, &inf);
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if (res < 0) {
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fprintf(stderr, "Failed to read info after enterring bootloader\n");
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return -1;
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}
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}
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////////////////////
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printf("step [4/7] : Erase current firmware... "); fflush(stdout);
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gc2n64_adapter_boot_eraseAll(hdl, channel);
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if (gc2n64_adapter_boot_waitNotBusy(hdl, channel, 1)) {
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return -1;
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}
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printf("Ok\n");
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////////////////////
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// We need to add a marker at the end of the application area (just before the
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// bootloader) so the bootloader knows an application is installed.
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if (max_addr >= inf.bootldr.bootloader_start_address - 4) {
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fprintf(stderr, "No space for marker - application too large. Aborting\n");
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return -1;
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}
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buf[inf.bootldr.bootloader_start_address - 4] = 0x12;
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buf[inf.bootldr.bootloader_start_address - 3] = 0x34;
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buf[inf.bootldr.bootloader_start_address - 2] = 0x56;
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buf[inf.bootldr.bootloader_start_address - 1] = 0x78;
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printf("step [5/7] : Write new firmware...\n");
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// Note: We write up to the bootloader, even if the firmware was shorter (it usually is).
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// This is to make sure that the marker we placed at the end gets written.
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res = gc2n64_adapter_sendFirmwareBlocks(hdl, channel, buf, inf.bootldr.bootloader_start_address);
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if (res < 0) {
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return -1;
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}
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printf("step [6/7] : Verify firmware...\n");
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res = gc2n64_adapter_verifyFirmware(hdl, channel, buf, inf.bootldr.bootloader_start_address);
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if (res < 0) {
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printf("Verify failed : Update failed\n");
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return -1;
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}
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printf("step [7/7] : Launch new firmware.\n");
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gc2n64_adapter_bootApplication(hdl, channel);
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err:
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free(buf);
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return ret;
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}
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