| 30,7 → 30,7 |
|---|
| ; Description |
| ; entry point for system PCI calls |
| ;*************************************************************************** |
| ;mmio_pci_addr equ 0x400 ; set actual PCI address here to activate user-MMIO |
| ;mmio_pci_addr equ 0x400 ; set actual PCI address here to activate user-MMIO |
| |
| iglobal |
| align 4 |
| 40,12 → 40,12 |
|---|
| dd pci_fn_2 |
| dd pci_service_not_supported ;3 |
| dd pci_read_reg ;4 byte |
| dd pci_read_reg ;5 word |
| dd pci_read_reg ;6 dword |
| dd pci_service_not_supported ;7 |
| dd pci_write_reg ;8 byte |
| dd pci_write_reg ;9 word |
| dd pci_write_reg ;10 dword |
| dd pci_read_reg ;5 word |
| dd pci_read_reg ;6 dword |
| dd pci_service_not_supported ;7 |
| dd pci_write_reg ;8 byte |
| dd pci_write_reg ;9 word |
| dd pci_write_reg ;10 dword |
| if defined mmio_pci_addr |
| dd pci_mmio_init ;11 |
| dd pci_mmio_map ;12 |
| 64,19 → 64,20 |
|---|
| mov eax,ebx |
| mov ebx,ecx |
| mov ecx,edx |
| movzx edx, al |
| ;;;;;;;;;;;;;;;;;;; |
| |
| if defined mmio_pci_addr |
| cmp eax, 13 |
| jb pci_service_not_supported |
| cmp al, 13 |
| ja pci_service_not_supported |
| else |
| cmp eax, 10 |
| jb pci_service_not_supported |
| cmp al, 10 |
| ja pci_service_not_supported |
| end if |
| |
| call dword [f62call+eax*4] |
| mov dword [esp+32],eax |
| ret |
| |
| call dword [f62call+edx*4] |
| mov dword [esp+32],eax |
| ret |
| ;; ============================================ |
| |
| pci_fn_0: |
| 96,6 → 97,7 |
|---|
| |
| pci_service_not_supported: |
| or eax,-1 |
| mov dword [esp+32],eax |
| ret |
| |
| ;*************************************************************************** |
| 387,7 → 389,7 |
|---|
| if defined mmio_pci_addr ; must be set above |
| ;*************************************************************************** |
| ; Function |
| ; pci_mmio_init |
| ; pci_mmio_init |
| ; |
| ; Description |
| ; IN: bx = device's PCI bus address (bbbbbbbbdddddfff) |
| 398,7 → 400,7 |
|---|
| ; eax = -3 : user heap initialization failure |
| ;*************************************************************************** |
| pci_mmio_init: |
| cmp bx, mmio_pci_addr |
| cmp bx, mmio_pci_addr |
| jz @f |
| mov eax,-2 |
| ret |
| 414,7 → 416,7 |
|---|
| |
| ;*************************************************************************** |
| ; Function |
| ; pci_mmio_map |
| ; pci_mmio_map |
| ; |
| ; Description |
| ; maps a block of PCI memory to user-accessible linear address |
| 440,8 → 442,8 |
|---|
| pci_mmio_map: |
| and edx,0x0ffff |
| cmp ah,6 |
| jc .bar_0_5 |
| jz .bar_rom |
| jc .bar_0_5 |
| jz .bar_rom |
| mov eax,-2 |
| ret |
| .bar_rom: |
| 501,7 → 503,7 |
|---|
| |
| ;*************************************************************************** |
| ; Function |
| ; pci_mmio_unmap_page |
| ; pci_mmio_unmap_page |
| ; |
| ; Description |
| ; unmaps the linear space previously tied to a PCI memory block |