Rev 4522 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
4522 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
3 | ;; Copyright (C) KolibriOS team 2004-2014. All rights reserved. ;; |
||
4 | ;; Distributed under terms of the GNU General Public License ;; |
||
5 | ;; ;; |
||
6 | ;; GNU GENERAL PUBLIC LICENSE ;; |
||
7 | ;; Version 2, June 1991 ;; |
||
8 | ;; ;; |
||
9 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
10 | |||
11 | struct PCI_header |
||
12 | |||
13 | vendor_id dw ? |
||
14 | device_id dw ? |
||
15 | command dw ? |
||
16 | status dw ? |
||
17 | revision_id db ? |
||
18 | prog_if db ? |
||
19 | subclass db ? |
||
20 | class_code db ? |
||
21 | cache_line_size db ? |
||
22 | latency_timer db ? |
||
23 | header_type db ? |
||
24 | bist db ? |
||
25 | |||
26 | ends |
||
27 | |||
28 | struct PCI_header00 PCI_header |
||
29 | |||
30 | base_addr_0 dd ? |
||
31 | base_addr_1 dd ? |
||
32 | base_addr_2 dd ? |
||
33 | base_addr_3 dd ? |
||
34 | base_addr_4 dd ? |
||
35 | base_addr_5 dd ? |
||
36 | cardbus_cis_ptr dd ? |
||
37 | subsys_vendor dw ? |
||
38 | subsys_id dw ? |
||
39 | exp_rom_addr dd ? |
||
40 | cap_ptr db ? |
||
41 | reserved rb 7 |
||
42 | interrupt_line db ? |
||
43 | interrupt_pin db ? |
||
44 | min_grant db ? |
||
45 | max_latency db ? |
||
46 | |||
47 | ends |
||
48 | |||
49 | ; Base address bits |
||
50 | PCI_BASE_ADDRESS_SPACE_IO = 0x01 |
||
51 | PCI_BASE_ADDRESS_IO_MASK = 0xFFFFFFFC |
||
52 | PCI_BASE_ADDRESS_MEM_MASK = 0xFFFFFFF0 |
||
53 | |||
54 | ; command bits |
||
55 | PCI_CMD_PIO = 1 ; bit0: io space control |
||
56 | PCI_CMD_MMIO = 2 ; bit1: memory space control |
||
57 | PCI_CMD_MASTER = 4 ; bit2: device acts as a PCI master |
||
58 | |||
59 | |||
60 | if used PCI_find_io |
||
61 | proc PCI_find_io stdcall bus, dev |
||
62 | |||
63 | push esi |
||
64 | xor eax, eax |
||
4532 | hidnplayr | 65 | mov esi, PCI_header00.base_addr_0 |
4522 | hidnplayr | 66 | .check: |
67 | invoke PciRead32, [bus], [dev], esi |
||
68 | test eax, PCI_BASE_ADDRESS_IO_MASK |
||
69 | jz .inc |
||
70 | test eax, PCI_BASE_ADDRESS_SPACE_IO |
||
71 | jz .inc |
||
72 | and eax, PCI_BASE_ADDRESS_IO_MASK |
||
73 | pop esi |
||
74 | ret |
||
75 | |||
76 | .inc: |
||
77 | add esi, 4 |
||
4532 | hidnplayr | 78 | cmp esi, PCI_header00.base_addr_5 |
4522 | hidnplayr | 79 | jbe .check |
80 | pop esi |
||
81 | xor eax, eax |
||
82 | ret |
||
83 | |||
84 | endp |
||
85 | end if |
||
86 | |||
87 | |||
88 | if used PCI_find_mmio32 |
||
89 | proc PCI_find_mmio32 stdcall bus, dev |
||
90 | |||
91 | push esi |
||
92 | mov esi, PCI_header00.base_addr_0 |
||
93 | .check: |
||
94 | invoke PciRead32, [bus], [dev], esi |
||
95 | test eax, PCI_BASE_ADDRESS_SPACE_IO ; mmio address? |
||
96 | jnz .inc |
||
97 | test eax, 100b ; 64 bit? |
||
98 | jnz .inc |
||
99 | and eax, not 1111b |
||
100 | pop esi |
||
101 | ret |
||
102 | |||
103 | .inc: |
||
104 | add esi, 4 |
||
105 | cmp esi, PCI_header00.base_addr_5 |
||
106 | jbe .check |
||
107 | xor eax, eax |
||
108 | pop esi |
||
109 | ret |
||
110 | |||
111 | endp |
||
112 | end if |