| 0,0 → 1,117 |
|---|
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| ;; ;; |
| ;; Copyright (C) KolibriOS team 2004-2014. All rights reserved. ;; |
| ;; Distributed under terms of the GNU General Public License ;; |
| ;; ;; |
| ;; GNU GENERAL PUBLIC LICENSE ;; |
| ;; Version 2, June 1991 ;; |
| ;; ;; |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| |
| struct PCI_header |
| |
| vendor_id dw ? |
| device_id dw ? |
| command dw ? |
| status dw ? |
| revision_id db ? |
| prog_if db ? |
| subclass db ? |
| class_code db ? |
| cache_line_size db ? |
| latency_timer db ? |
| header_type db ? |
| bist db ? |
| |
| ends |
| |
| struct PCI_header00 PCI_header |
| |
| base_addr_0 dd ? |
| base_addr_1 dd ? |
| base_addr_2 dd ? |
| base_addr_3 dd ? |
| base_addr_4 dd ? |
| base_addr_5 dd ? |
| cardbus_cis_ptr dd ? |
| subsys_vendor dw ? |
| subsys_id dw ? |
| exp_rom_addr dd ? |
| cap_ptr db ? |
| reserved rb 7 |
| interrupt_line db ? |
| interrupt_pin db ? |
| min_grant db ? |
| max_latency db ? |
| |
| ends |
| |
| ; Base address bits |
| PCI_BASE_ADDRESS_SPACE_IO = 0x01 |
| PCI_BASE_ADDRESS_IO_MASK = 0xFFFFFFFC |
| PCI_BASE_ADDRESS_MEM_MASK = 0xFFFFFFF0 |
| |
| ; command bits |
| PCI_CMD_PIO = 1 ; bit0: io space control |
| PCI_CMD_MMIO = 2 ; bit1: memory space control |
| PCI_CMD_MASTER = 4 ; bit2: device acts as a PCI master |
| |
| |
| if used PCI_find_io |
| proc PCI_find_io stdcall bus, dev |
| |
| push esi |
| xor eax, eax |
| mov esi, PCI_BASE_ADDRESS_0 |
| .check: |
| invoke PciRead32, [bus], [dev], esi |
| |
| test eax, PCI_BASE_ADDRESS_IO_MASK |
| jz .inc |
| |
| test eax, PCI_BASE_ADDRESS_SPACE_IO |
| jz .inc |
| |
| and eax, PCI_BASE_ADDRESS_IO_MASK |
| pop esi |
| ret |
| |
| .inc: |
| add esi, 4 |
| cmp esi, PCI_BASE_ADDRESS_5 |
| jbe .check |
| pop esi |
| xor eax, eax |
| ret |
| |
| endp |
| end if |
| |
| |
| if used PCI_find_mmio32 |
| proc PCI_find_mmio32 stdcall bus, dev |
| |
| push esi |
| mov esi, PCI_header00.base_addr_0 |
| .check: |
| invoke PciRead32, [bus], [dev], esi |
| |
| test eax, PCI_BASE_ADDRESS_SPACE_IO ; mmio address? |
| jnz .inc |
| |
| test eax, 100b ; 64 bit? |
| jnz .inc |
| and eax, not 1111b |
| pop esi |
| ret |
| |
| .inc: |
| add esi, 4 |
| cmp esi, PCI_header00.base_addr_5 |
| jbe .check |
| xor eax, eax |
| pop esi |
| ret |
| |
| endp |
| end if |