Revision 73a511de hw/etraxfs_dma.c
| b/hw/etraxfs_dma.c | ||
|---|---|---|
| 401 | 401 |
uint32_t saved_data_buf; |
| 402 | 402 |
unsigned char buf[2 * 1024]; |
| 403 | 403 |
|
| 404 |
struct dma_context_metadata meta; |
|
| 405 |
bool send_context = true; |
|
| 406 |
|
|
| 404 | 407 |
if (ctrl->channels[c].eol) |
| 405 | 408 |
return 0; |
| 406 | 409 |
|
| 407 | 410 |
do {
|
| 411 |
bool out_eop; |
|
| 408 | 412 |
D(printf("ch=%d buf=%x after=%x\n",
|
| 409 | 413 |
c, |
| 410 | 414 |
(uint32_t)ctrl->channels[c].current_d.buf, |
| 411 | 415 |
(uint32_t)ctrl->channels[c].current_d.after)); |
| 412 | 416 |
|
| 417 |
if (send_context) {
|
|
| 418 |
if (ctrl->channels[c].client->client.metadata_push) {
|
|
| 419 |
meta.metadata = ctrl->channels[c].current_d.md; |
|
| 420 |
ctrl->channels[c].client->client.metadata_push( |
|
| 421 |
ctrl->channels[c].client->client.opaque, |
|
| 422 |
&meta); |
|
| 423 |
} |
|
| 424 |
send_context = false; |
|
| 425 |
} |
|
| 426 |
|
|
| 413 | 427 |
channel_load_d(ctrl, c); |
| 414 | 428 |
saved_data_buf = channel_reg(ctrl, c, RW_SAVED_DATA_BUF); |
| 415 | 429 |
len = (uint32_t)(unsigned long) |
| ... | ... | |
| 420 | 434 |
len = sizeof buf; |
| 421 | 435 |
cpu_physical_memory_read (saved_data_buf, buf, len); |
| 422 | 436 |
|
| 423 |
D(printf("channel %d pushes %x %u bytes\n", c,
|
|
| 424 |
saved_data_buf, len)); |
|
| 437 |
out_eop = ((saved_data_buf + len) == |
|
| 438 |
ctrl->channels[c].current_d.after) && |
|
| 439 |
ctrl->channels[c].current_d.out_eop; |
|
| 440 |
|
|
| 441 |
D(printf("channel %d pushes %x %u bytes eop=%u\n", c,
|
|
| 442 |
saved_data_buf, len, out_eop)); |
|
| 425 | 443 |
|
| 426 | 444 |
if (ctrl->channels[c].client->client.push) |
| 427 | 445 |
ctrl->channels[c].client->client.push( |
| 428 | 446 |
ctrl->channels[c].client->client.opaque, |
| 429 |
buf, len); |
|
| 447 |
buf, len, out_eop);
|
|
| 430 | 448 |
else |
| 431 | 449 |
printf("WARNING: DMA ch%d dataloss,"
|
| 432 | 450 |
" no attached client.\n", c); |
| ... | ... | |
| 437 | 455 |
ctrl->channels[c].current_d.after) {
|
| 438 | 456 |
/* Done. Step to next. */ |
| 439 | 457 |
if (ctrl->channels[c].current_d.out_eop) {
|
| 440 |
/* TODO: signal eop to the client. */ |
|
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D(printf("signal eop\n"));
|
|
| 458 |
send_context = true; |
|
| 442 | 459 |
} |
| 443 | 460 |
if (ctrl->channels[c].current_d.intr) {
|
| 444 |
/* TODO: signal eop to the client. */ |
|
| 445 | 461 |
/* data intr. */ |
| 446 | 462 |
D(printf("signal intr %d eol=%d\n",
|
| 447 | 463 |
len, ctrl->channels[c].current_d.eol)); |
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