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| 21 | ;; ;; |
21 | ;; ;; |
| 22 | ;; See file COPYING for details ;; |
22 | ;; See file COPYING for details ;; |
| 23 | ;; ;; |
23 | ;; ;; |
| 24 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
24 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| Line 25... | Line 25... | ||
| 25 | 25 | ||
| Line 26... | Line 26... | ||
| 26 | $Revision: 1507 $ |
26 | $Revision: 1508 $ |
| 27 | 27 | ||
| 28 | ;*************************************************************************** |
28 | ;*************************************************************************** |
| 29 | ; Function |
29 | ; Function |
| Line 376... | Line 376... | ||
| 376 | pci_write_reg_err: |
376 | pci_write_reg_err: |
| 377 | xor eax,eax |
377 | xor eax,eax |
| 378 | dec eax |
378 | dec eax |
| 379 | ret |
379 | ret |
| Line 380... | Line -... | ||
| 380 | - | ||
| 381 | if defined mmio_pci_addr ; must be set above |
380 | |
| 382 | ;*************************************************************************** |
381 | ;*************************************************************************** |
| 383 | ; Function |
382 | ; Function |
| 384 | ; pci_mmio_init |
383 | ; pci_mmio_init |
| 385 | ; |
384 | ; |
| 386 | ; Description |
385 | ; Description |
| 387 | ; IN: bx = device's PCI bus address (bbbbbbbbdddddfff) |
386 | ; IN: bx = device's PCI bus address (bbbbbbbbdddddfff) |
| 388 | ; Returns eax = phys. address of user-accessible DMA block |
387 | ; Returns eax = phys. address of user-accessible DMA block |
| 389 | ; Error codes |
388 | ; Error codes |
| 390 | ; eax = -1 : PCI user access blocked, |
- | |
| 391 | ; eax = -2 : device not registered for uMMIO service |
389 | ; eax = -1 : PCI user access blocked, |
| 392 | ; eax = -3 : user heap initialization failure |
390 | ; eax = -3 : user heap initialization failure |
| 393 | ;*************************************************************************** |
391 | ;*************************************************************************** |
| 394 | pci_mmio_init: |
392 | pci_mmio_init: |
| 395 | cmp bx, [mmio_pci_addr] |
- | |
| 396 | jz @f |
- | |
| 397 | mov eax,-2 |
- | |
| 398 | ret |
393 | mov [mmio_pci_addr],bx |
| 399 | @@: |
394 | |
| 400 | call init_heap ; (if not initialized yet) |
395 | call init_heap ; (if not initialized yet) |
| 401 | or eax,eax |
396 | or eax,eax |
| 402 | jz @f |
397 | jz @f |
| 403 | mov eax, [UserDMAaddr] |
398 | mov eax, [UserDMAaddr] |
| Line 519... | Line 514... | ||
| 519 | 514 | ||
| 520 | pci_mmio_unmap: |
515 | pci_mmio_unmap: |
| 521 | stdcall user_free, ebx |
516 | stdcall user_free, ebx |
| Line 522... | Line -... | ||
| 522 | ret |
- | |
| 523 | - | ||
| 524 | end if |
517 | ret |
| 525 | 518 | ||
| 526 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
519 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
| 527 | uglobal |
520 | uglobal |
| 528 | align 4 |
521 | align 4 |