ls.c
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#include "ultra64.h"
#include "os_bb.h"
#include "bcp.h"
#include "libfb.h"
#include "ls.h"
#define USB_PRINT_DELAY 60
#define DMA_QUEUE_SIZE 200
#define PRINTF osSyncPrintf
#define delay_msec(_t) \
{ \
u32 cur = osGetCount(); \
while((cur+((_t)*75000))>(osGetCount()) ){} \
}
/*
* Thread and stack structures
*/
char bootStack[STACKSIZE] __attribute__ ((aligned (8)));
static OSThread idleThread;
static char idleThreadStack[STACKSIZE] __attribute__ ((aligned (8)));
static OSThread mainThread;
static char mainThreadStack[STACKSIZE] __attribute__ ((aligned (8)));
/*
* Message queues and message buffers used by this app
*/
static OSMesg PiMessages[DMA_QUEUE_SIZE], dmaMessageBuf;
static OSMesgQueue PiMessageQ, dmaMessageQ;
static OSMesg SiMessages[DMA_QUEUE_SIZE];
static OSMesgQueue SiMessageQ, contMessageQ;
/*
* Local variables and routines
*/
static void idleproc(char *);
static void mainproc(char *);
void
boot(void)
{
osInitialize();
osCreateThread(&idleThread, 1, (void(*)(void *))idleproc, (void *)0,
idleThreadStack+STACKSIZE, 8);
osStartThread(&idleThread);
}
#define SCREEN_LOW
#ifdef SCREEN_LOW
static u16 cfb[2][320*240] __attribute__((aligned(64)));
#else
static u16 cfb[2][640*480] __attribute__((aligned(64)));
#endif
static void
idleproc(char *argv) /* priority 8 */
{
osCreateViManager(OS_PRIORITY_VIMGR);
#ifdef SCREEN_LOW
fbInit(FB_LOW_RES);
#else
fbInit(FB_HIGH_RES);
#endif
/*
* Start PI Mgr for access to cartridge - start before the debugger
*/
osCreatePiManager((OSPri) OS_PRIORITY_PIMGR, &PiMessageQ, PiMessages,
DMA_QUEUE_SIZE);
osCreateMesgQueue(&dmaMessageQ, &dmaMessageBuf, 1);
osCreateMesgQueue(&SiMessageQ, SiMessages, DMA_QUEUE_SIZE);
osSetEventMesg(OS_EVENT_SI, &SiMessageQ, (OSMesg)DMA_QUEUE_SIZE);
/*
* The main thread's priority must be the same or lower than the original
* idle's thread priority. This allows the idle thread to change its
* priority to 0 before the main thread starts execution.
*/
osCreateThread(&mainThread, 3, (void(*)(void *))mainproc, argv,
mainThreadStack+STACKSIZE/8, (OSPri)7);
osStartThread(&mainThread);
osSetThreadPri(0, OS_PRIORITY_IDLE);
for(;;); /* idle thread */
}
static OSMesgQueue retraceMessageQ;
static OSMesg dummyMessage, retraceMessageBuf;
OSBbFs fs;
OSContStatus statusData[MAXCONTROLLERS];
OSContPad controllerData[MAXCONTROLLERS];
static u16 lastbutton[MAXCONTROLLERS];
static int no_controller = 1;
static void
initController(void)
{
int i;
u8 pattern;
osCreateMesgQueue(&contMessageQ, &dummyMessage, 1);
osSetEventMesg(OS_EVENT_SI, &contMessageQ, (OSMesg) 0);
osContInit(&contMessageQ, &pattern, &statusData[0]);
for (i = 0; i < MAXCONTROLLERS; i++) {
if ((pattern & (1 << i)) &&
!(statusData[i].errno & CONT_NO_RESPONSE_ERROR)) {
no_controller = 0;
}
}
}
static void draw_map(BbFat16* fat, u16 nblocks, u16 bias);
static void draw_filemap(BbFat16* fat, u16 nblocks, u16 bias);
static void
list_files(int verbose) {
extern BbFat16* __osBbFat;
BbFat16* fat = __osBbFat;
int i;
int blocks = osBbCardBlocks(0);
for(i = 0; i < BB_INODE16_ENTRIES; i++) {
if (fat->inode[i].type) {
PRINTF("%8.8s.%-3.3s %2d %8ld%s", fat->inode[i].name, fat->inode[i].name+8, i, fat->inode[i].size, verbose ? " " : "\n");
delay_msec(USB_PRINT_DELAY);
if (verbose) {
int j;
for(j = fat->inode[i].block;
j != BB_FAT_LAST;
j = BB_FAT16_NEXT(fat, j)){
PRINTF("%4d ", j);
if(j%16==0){
delay_msec(USB_PRINT_DELAY);
PRINTF("\n");
}
}
PRINTF("\n");
}
}
}
if (verbose) {
int free = 0, bad = 0, rsv = 0;
for(i = 0; i < blocks; i++) {
if (BB_FAT16_NEXT(fat, i) == BB_FAT_AVAIL) free++;
else if (BB_FAT16_NEXT(fat, i) == BB_FAT_BAD) bad++;
else if (BB_FAT16_NEXT(fat, i) == BB_FAT_RESERVED) rsv++;
}
PRINTF("free blocks %d %.2f MB\n", free, BB_FL_BLOCK_TO_BYTE(free)/(1024.*1024.));
PRINTF("reserved blocks %d %.1f%%\n", rsv, 100.f*rsv/blocks);
PRINTF("bad blocks %d %.1f%%\n", bad, 100.f*bad/blocks);
delay_msec(USB_PRINT_DELAY);
if (verbose > 1) {
for(i = 0; i < BB_FAT16_ENTRIES; i++) {
int t = BB_FAT16_NEXT(fat, i);
PRINTF("%c", t == BB_FAT_AVAIL ? '.' : t == BB_FAT_BAD ? '@' : t == BB_FAT_RESERVED ? '/' : '|');
if ((i & 63) == 63) PRINTF("\n");
}
}
}
}
static void
processButton(u16 button, int lastbutton)
{
int nblocks = osBbCardBlocks(0);
static int bias, mode;
extern BbFat16* __osBbFat;
if (button & D_JPAD && !(lastbutton & D_JPAD)) {
if (bias > 0)
bias -= 4096;
}
if (button & U_JPAD && !(lastbutton & U_JPAD)) {
if (bias < nblocks-4096)
bias += 4096;
}
if (button & R_JPAD && !(lastbutton & R_JPAD)) {
}
if (button & L_JPAD && !(lastbutton & L_JPAD)) {
}
if (button & B_BUTTON && !(lastbutton & B_BUTTON)) {
mode ^= 1;
}
if (button & A_BUTTON && !(lastbutton & A_BUTTON)) {
}
if (button & START_BUTTON && !(lastbutton & START_BUTTON)) {
osExit();
}
if (mode)
draw_filemap(__osBbFat, osBbCardBlocks(0), bias);
else
draw_map(__osBbFat, osBbCardBlocks(0), bias);
{
int i;
u16 bad = 0;
u16 used = 0;
BbFat16* fat = __osBbFat;
for(i = 0; i < osBbCardBlocks(0); i++) {
u16 e = BB_FAT16_NEXT(fat, i);
if (e == BB_FAT_BAD) bad++;
else if (e != BB_FAT_AVAIL) used++;
}
fbPrintf(fbWhite, 8, 14, "bad %d used %.1f free %.1f", bad, used*16.f/1024, (osBbCardBlocks(0)-used)*16.f/1024);
}
osWritebackDCacheAll();
}
static void
readControllers(void)
{
int i;
OSContPad *pad;
osRecvMesg(&contMessageQ, &dummyMessage, OS_MESG_BLOCK);
osContGetReadData(controllerData);
for (i = 0; i < MAXCONTROLLERS; ++i) {
pad = &controllerData[i];
if (pad->button) {
processButton(pad->button, lastbutton[i]);
}
lastbutton[i] = pad->button;
}
}
#define fbhBlue GPACK_RGBA5551(0,0,80,1)
#define fbhGreen GPACK_RGBA5551(0,80,0,1)
#define fbhRed GPACK_RGBA5551(80,0,0,1)
#define fbhYellow GPACK_RGBA5551(80,80,0,1)
#define fbhMagenta GPACK_RGBA5551(80,0,80,1)
#define fbhCyan GPACK_RGBA5551(0,80,80,1)
#define fbLemonChiffon GPACK_RGBA5551(255,250,205,1)
#define fbLightSlateBlue GPACK_RGBA5551(132,112,255,1)
#define fbLightPink1 GPACK_RGBA5551(255,174,185,1)
#define fbThistle2 GPACK_RGBA5551(238,210,238,1)
#define fbSeaGreen4 GPACK_RGBA5551(105,139,105,1)
#define fbTomato1 GPACK_RGBA5551(255,99,71,1)
#define fbTurquoise2 GPACK_RGBA5551(0,229,238,1)
#define fbSienna4 GPACK_RGBA5551(139,71,38,1)
static void
draw_map(BbFat16* fat, u16 nblocks, u16 bias) {
int x, y;
u16 col;
fbRect(64, 16, 64+191, 16+191, fbhGreen);
for(y = 0; y < 4096/64; y++) {
for(x = 0; x < 64; x++) {
u16 e = BB_FAT16_NEXT(fat, bias+y*64+x);
col = fbhGreen;
if (e == BB_FAT_RESERVED) col = fbhYellow;
else if (e == BB_FAT_BAD) col = fbhRed;
else if (e != BB_FAT_AVAIL) col = fbhCyan;
fbRect(64+3*x, 16+3*y, 64+3*x+2, 16+3*y+2, col);
}
}
}
const u16 rainbow[] = {
fbLemonChiffon,
fbLightSlateBlue,
fbLightPink1,
fbSeaGreen4,
fbTomato1,
fbGray,
fbTurquoise2,
fbSienna4
};
static void
draw_filemap(BbFat16* fat, u16 nblocks, u16 bias) {
int x, y, i;
u16 col;
fbRect(64, 16, 64+191, 16+191, fbhGreen);
for(y = 0; y < 4096/64; y++) {
for(x = 0; x < 64; x++) {
u16 e = BB_FAT16_NEXT(fat, bias+y*64+x);
if (e == BB_FAT_RESERVED) col = fbhYellow;
else if (e == BB_FAT_BAD) col = fbhRed;
else continue;
fbRect(64+3*x, 16+3*y, 64+3*x+2, 16+3*y+2, col);
}
}
for(i = 0; i < BB_INODE16_ENTRIES; i++) {
u16 b = fat->inode[i].block;
if (!fat->inode[i].type) continue;
col = rainbow[i&7];
while(b != BB_FAT_LAST) {
if (b >= bias && b < bias+4096) {
x = (b-bias) & 63;
y = (b-bias) >> 6;
fbRect(64+3*x, 16+3*y, 64+3*x+2, 16+3*y+2, col);
}
b = BB_FAT16_NEXT(fat, b);
}
}
}
static void
mainproc(char *argv) {
int rv, which, once = 0, unhappy = 0;
osCreateMesgQueue(&retraceMessageQ, &retraceMessageBuf, 1);
osViSetEvent(&retraceMessageQ, dummyMessage, 1);
osViBlack(1);
osViSwapBuffer(cfb);
initController();
fbSetBg(fbBlack);
fbClear();
osViBlack(0);
osWritebackDCacheAll();
osViSwapBuffer(cfb[which = 1]);
fbClear();
osBbUsbInit();
PRINTF("Can anything come out?\n");
delay_msec(USB_PRINT_DELAY);
for(;;) {
if (osBbCardUnhappy() && (rv = osBbFInit(&fs)) < 0) {
if(unhappy==0)PRINTF("NO CARD!\n");
unhappy = 1;
once=0;
} else {
unhappy = 0;
if (!once) {
list_files(1);
once = 1;
}
}
osRecvMesg(&retraceMessageQ, NULL, OS_MESG_BLOCK);
osContStartReadData(&contMessageQ);
osViSwapBuffer(cfb[which]);
readControllers();
which ^= 1;
}
}