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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2455 | mario79 | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
2288 | clevermous | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
8 | ;driver sceletone |
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9 | |||
10 | format MS COFF |
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11 | |||
12 | DEBUG equ 1 |
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13 | |||
14 | API_VERSION equ 0 ;debug |
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15 | |||
16 | include 'proc32.inc' |
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17 | include 'imports.inc' |
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18 | |||
19 | struc IOCTL |
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20 | { .handle dd ? |
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21 | .io_code dd ? |
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22 | .input dd ? |
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23 | .inp_size dd ? |
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24 | .output dd ? |
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25 | .out_size dd ? |
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26 | } |
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27 | |||
28 | virtual at 0 |
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29 | IOCTL IOCTL |
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30 | end virtual |
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31 | |||
32 | public START |
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33 | public service_proc |
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34 | public version |
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35 | |||
36 | DRV_ENTRY equ 1 |
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37 | DRV_EXIT equ -1 |
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38 | STRIDE equ 4 ;size of row in devices table |
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39 | |||
40 | SRV_GETVERSION equ 0 |
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41 | |||
42 | section '.flat' code readable align 16 |
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43 | |||
44 | proc START stdcall, state:dword |
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45 | |||
46 | cmp [state], 1 |
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47 | jne .exit |
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48 | .entry: |
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49 | |||
50 | if DEBUG |
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51 | mov esi, msgInit |
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52 | call SysMsgBoardStr |
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53 | end if |
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54 | |||
55 | stdcall RegService, my_service, service_proc |
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56 | ret |
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57 | .fail: |
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58 | .exit: |
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59 | xor eax, eax |
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60 | ret |
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61 | endp |
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62 | |||
63 | handle equ IOCTL.handle |
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64 | io_code equ IOCTL.io_code |
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65 | input equ IOCTL.input |
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66 | inp_size equ IOCTL.inp_size |
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67 | output equ IOCTL.output |
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68 | out_size equ IOCTL.out_size |
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69 | |||
70 | align 4 |
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71 | proc service_proc stdcall, ioctl:dword |
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72 | |||
73 | mov ebx, [ioctl] |
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74 | mov eax, [ebx+io_code] |
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75 | cmp eax, SRV_GETVERSION |
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76 | jne @F |
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77 | |||
78 | mov eax, [ebx+output] |
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79 | cmp [ebx+out_size], 4 |
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80 | jne .fail |
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81 | mov [eax], dword API_VERSION |
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82 | xor eax, eax |
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83 | ret |
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84 | @@: |
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85 | .fail: |
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86 | or eax, -1 |
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87 | ret |
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88 | endp |
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89 | |||
90 | restore handle |
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91 | restore io_code |
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92 | restore input |
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93 | restore inp_size |
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94 | restore output |
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95 | restore out_size |
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96 | |||
97 | align 4 |
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98 | proc detect |
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99 | locals |
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100 | last_bus dd ? |
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101 | endl |
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102 | |||
103 | xor eax, eax |
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104 | mov [bus], eax |
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105 | inc eax |
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106 | call PciApi |
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107 | cmp eax, -1 |
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108 | je .err |
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109 | |||
110 | mov [last_bus], eax |
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111 | |||
112 | .next_bus: |
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113 | and [devfn], 0 |
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114 | .next_dev: |
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115 | stdcall PciRead32, [bus], [devfn], dword 0 |
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116 | test eax, eax |
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117 | jz .next |
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118 | cmp eax, -1 |
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119 | je .next |
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120 | |||
121 | mov edi, devices |
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122 | @@: |
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123 | mov ebx, [edi] |
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124 | test ebx, ebx |
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125 | jz .next |
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126 | |||
127 | cmp eax, ebx |
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128 | je .found |
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129 | |||
130 | add edi, STRIDE |
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131 | jmp @B |
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132 | .next: |
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133 | inc [devfn] |
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134 | cmp [devfn], 256 |
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135 | jb .next_dev |
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136 | mov eax, [bus] |
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137 | inc eax |
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138 | mov [bus], eax |
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139 | cmp eax, [last_bus] |
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140 | jna .next_bus |
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141 | xor eax, eax |
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142 | ret |
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143 | .found: |
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144 | xor eax, eax |
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145 | inc eax |
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146 | ret |
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147 | .err: |
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148 | xor eax, eax |
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149 | ret |
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150 | endp |
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151 | |||
152 | DEVICE_ID equ 1234; pci device id |
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153 | VENDOR_ID equ 5678; device vendor id |
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154 | |||
155 | |||
156 | ;all initialized data place here |
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157 | |||
158 | align 4 |
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159 | devices dd (DEVICE_ID shl 16)+VENDOR_ID |
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160 | dd 0 ;terminator |
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161 | |||
162 | version dd (5 shl 16) or (API_VERSION and 0xFFFF) |
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163 | |||
164 | my_service db 'MY_SERVICE',0 ;max 16 chars include zero |
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165 | |||
166 | msgInit db 'detect hardware...',13,10,0 |
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167 | msgPCI db 'PCI accsess not supported',13,10,0 |
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168 | msgFail db 'device not found',13,10,0 |
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169 | |||
170 | section '.data' data readable writable align 16 |
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171 | |||
172 | ;all uninitialized data place here |
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173 |