static u32 remove_bp(void *mem)
{
struct bp_entry *e = p_bpentries;
struct bp_entry *f = NULL;
if(!e) return 0;
if(e->address==mem) {
p_bpentries = e->next;
f = e;
} else {
for(; e->next; e=e->next) {
if(e->next->address==mem) {
f = e->next;
e->next = f->next;
break;
}
}
}
if(!f) return 0;
*(f->address) = f->instr;
f->instr = 0xffffffff;
f->address = NULL;
DCStoreRangeNoSync((void*)((u32)mem&~0x1f),32);
ICInvalidateRange((void*)((u32)mem&~0x1f),32);
_sync();
return 1;
}
static int play(void *data, int remaining, int flags)
{
int processed = 0;
int samples = BUFFER_SIZE / (sizeof(s16) * HW_CHANNELS);
s16 *source = (s16 *)data;
while (remaining >= request_size && get_space() >= request_size)
{
copy_channels((s16 *)buffers[buffer_fill], source, samples, processed, remaining);
DCStoreRangeNoSync(buffers[buffer_fill], BUFFER_SIZE);
buffer_fill = (buffer_fill + 1) % BUFFER_COUNT;
processed += request_size;
source += request_size / sizeof(s16);
buffered += BUFFER_SIZE;
remaining -= request_size;
}
if ((flags & AOPLAY_FINAL_CHUNK) && remaining > 0)
{
samples = remaining / (sizeof(s16) * HW_CHANNELS);
memset(buffers[buffer_fill], 0, BUFFER_SIZE);
copy_channels((s16 *)buffers[buffer_fill], source, samples, processed, 0);
DCStoreRangeNoSync(buffers[buffer_fill], BUFFER_SIZE);
buffer_fill = (buffer_fill + 1) % BUFFER_COUNT;
processed += remaining;
buffered += BUFFER_SIZE;
}
if (!playing)// && buffered > request_size)
{
playing = true;
switch_buffers();
AUDIO_StartDMA();
}
return processed;
}
static u32 insert_bp(void *mem)
{
u32 i;
struct bp_entry *p;
for(i=0; i<GEKKO_MAX_BP; i++) {
if(bp_entries[i].address == NULL) break;
}
if(i==GEKKO_MAX_BP) return 0;
p = &bp_entries[i];
p->next = p_bpentries;
p->address = mem;
p_bpentries = p;
p->instr = *(p->address);
*(p->address) = BPCODE;
DCStoreRangeNoSync((void*)((u32)mem&~0x1f),32);
ICInvalidateRange((void*)((u32)mem&~0x1f),32);
_sync();
return 1;
}
