| 3261,6 → 3261,59 |
|---|
| in the device documentation. |
| |
| ====================================================================== |
| ===================== Function 62, subfunction 11 ==================== |
| == Initialize user-accessible MMIO channel == |
| ====================================================================== |
| Parameters: |
| * eax = 62 - function |
| * bl = 11 - subfunction |
| * cx = PCI-address (bbbbbbbb dddddfff) |
| Returns: |
| * eax = -1 - PCI access not granted; |
| * eax = -2 - no user MMIO access to this PCI address; |
| * eax = -3 - memory allocation error; otherwise |
| * eax = available user heap size. |
| Remarks: |
| * Low-level PCI access must be allowed (fn21:12) |
| * PCI-address should correspond the system var [mmio_pci_addr] |
| |
| ====================================================================== |
| ===================== Function 62, subfunction 12 ==================== |
| == Request user-accessible MMIO address space == |
| ====================================================================== |
| Parameters: |
| * eax = 62 - function |
| * bl = 12 - subfunction |
| * bh = BAR number in PCI configuration space |
| * ecx = MMIO-block size needed (bytes) |
| * edx = MMIO-offset (number of whole 4Kb-pages!) |
| Returns: |
| * eax = -1 - user PCI access denied; |
| * eax = -2 - invalid BAR number; |
| * eax = -3 - BAR contains no valid IO addres; |
| * eax = -4 - BAR addresses IO ports; |
| * eax = -5 - dynamic allocation error; otherwise |
| * eax = MMIO start address (in application's linear space). |
| Remarks: |
| * Low-level PCI access must be allowed (fn21:12) |
| * The system var [mmio_pci_addr] sets the actual PCI-address |
| * The granted MMIO addresses should be released after use (fn62:13) |
| |
| ====================================================================== |
| ===================== Function 62, subfunction 13 ==================== |
| == Release a block of user MMIO addresses == |
| ====================================================================== |
| à ¬¥âàë: |
| * eax = 62 - function |
| * bl = 12 - subfunction |
| * ecx = MMIO start address (in application's linear space). |
| Returns: |
| * eax = 1 if the block is successfully released; |
| * eax = 0 in case of reallocation error; |
| Remarks: |
| * A valid uMMIO block should exist at this address (fn62:12) |
| |
| ====================================================================== |
| ============== Function 63 - work with the debug board. ============== |
| ====================================================================== |
| The debug board is the global system buffer (with the size |