Revision 4487fd34
| b/hw/etraxfs_dma.c | ||
|---|---|---|
| 156 | 156 |
|
| 157 | 157 |
enum dma_ch_state |
| 158 | 158 |
{
|
| 159 |
RST = 0,
|
|
| 159 |
RST = 1,
|
|
| 160 | 160 |
STOPPED = 2, |
| 161 | 161 |
RUNNING = 4 |
| 162 | 162 |
}; |
| ... | ... | |
| 398 | 398 |
|
| 399 | 399 |
saved_data_buf = channel_reg(ctrl, c, RW_SAVED_DATA_BUF); |
| 400 | 400 |
|
| 401 |
D(fprintf(logfile, "ch=%d buf=%x after=%x saved_data_buf=%x\n",
|
|
| 401 |
D(printf("ch=%d buf=%x after=%x saved_data_buf=%x\n",
|
|
| 402 | 402 |
c, |
| 403 | 403 |
(uint32_t)ctrl->channels[c].current_d.buf, |
| 404 | 404 |
(uint32_t)ctrl->channels[c].current_d.after, |
| ... | ... | |
| 583 | 583 |
} |
| 584 | 584 |
|
| 585 | 585 |
static void |
| 586 |
dma_update_state(struct fs_dma_ctrl *ctrl, int c) |
|
| 587 |
{
|
|
| 588 |
if ((ctrl->channels[c].regs[RW_CFG] & 1) != 3) {
|
|
| 589 |
if (ctrl->channels[c].regs[RW_CFG] & 2) |
|
| 590 |
ctrl->channels[c].state = STOPPED; |
|
| 591 |
if (!(ctrl->channels[c].regs[RW_CFG] & 1)) |
|
| 592 |
ctrl->channels[c].state = RST; |
|
| 593 |
} |
|
| 594 |
} |
|
| 595 |
|
|
| 596 |
static void |
|
| 586 | 597 |
dma_writel (void *opaque, target_phys_addr_t addr, uint32_t value) |
| 587 | 598 |
{
|
| 588 | 599 |
struct fs_dma_ctrl *ctrl = opaque; |
| ... | ... | |
| 599 | 610 |
|
| 600 | 611 |
case RW_CFG: |
| 601 | 612 |
ctrl->channels[c].regs[addr] = value; |
| 613 |
dma_update_state(ctrl, c); |
|
| 602 | 614 |
break; |
| 603 | 615 |
case RW_CMD: |
| 604 | 616 |
/* continue. */ |
| 617 |
if (value & ~1) |
|
| 618 |
printf("Invalid store to ch=%d RW_CMD %x\n",
|
|
| 619 |
c, value); |
|
| 605 | 620 |
ctrl->channels[c].regs[addr] = value; |
| 606 | 621 |
channel_continue(ctrl, c); |
| 607 | 622 |
break; |
| ... | ... | |
| 622 | 637 |
break; |
| 623 | 638 |
|
| 624 | 639 |
case RW_STREAM_CMD: |
| 640 |
if (value & ~1023) |
|
| 641 |
printf("Invalid store to ch=%d "
|
|
| 642 |
"RW_STREAMCMD %x\n", |
|
| 643 |
c, value); |
|
| 625 | 644 |
ctrl->channels[c].regs[addr] = value; |
| 626 | 645 |
D(printf("stream_cmd ch=%d\n", c));
|
| 627 | 646 |
channel_stream_cmd(ctrl, c, value); |
Also available in: Unified diff