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| 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 2 | ;; ;; |
2 | ;; ;; |
| 3 | ;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;; |
| 4 | ;; Distributed under terms of the GNU General Public License ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
| 5 | ;; ;; |
5 | ;; ;; |
| - | 6 | ;; simple AGP driver for KolibriOS ;; |
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| - | 7 | ;; ;; |
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| - | 8 | ;; Written by hidnplayr@kolibrios.org ;; |
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| - | 9 | ;; ;; |
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| - | 10 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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| - | 11 | ;; Version 2, June 1991 ;; |
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| - | 12 | ;; ;; |
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| 6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
13 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| Line 7... | Line 14... | ||
| 7 | 14 | ||
| Line 8... | Line 15... | ||
| 8 | 15 | ||
| - | 16 | format MS COFF |
|
| 9 | format MS COFF |
17 | |
| Line 10... | Line 18... | ||
| 10 | 18 | DEBUG equ 1 |
|
| 11 | DEBUG equ 1 |
19 | FAST_WRITE equ 0 |
| Line 12... | Line 20... | ||
| 12 | API_VERSION equ 1 |
20 | SIDE_BAND_ADDRESSING equ 0 |
| Line 35... | Line 43... | ||
| 35 | DRV_EXIT equ -1 |
43 | DRV_EXIT equ -1 |
| Line 36... | Line 44... | ||
| 36 | 44 | ||
| 37 | SRV_GETVERSION equ 0 |
45 | SRV_GETVERSION equ 0 |
| Line -... | Line 46... | ||
| - | 46 | SRV_DETECT equ 1 |
|
| - | 47 | ||
| 38 | SRV_DETECT equ 1 |
48 | API_VERSION equ 1 |
| Line 39... | Line 49... | ||
| 39 | 49 | ||
| Line 40... | Line 50... | ||
| 40 | section '.flat' code readable align 16 |
50 | section '.flat' code readable align 16 |
| Line 108... | Line 118... | ||
| 108 | mov [bus], eax |
118 | mov [bus], eax |
| 109 | inc eax |
119 | inc eax |
| 110 | call PciApi ; get last bus |
120 | call PciApi ; get last bus |
| 111 | cmp eax, -1 |
121 | cmp eax, -1 |
| 112 | je .error |
122 | je .error |
| 113 | - | ||
| 114 | mov [last_bus], eax |
123 | mov [last_bus], eax |
| Line 115... | Line 124... | ||
| 115 | 124 | ||
| 116 | .next_bus: |
125 | .next_bus: |
| 117 | and [devfn], 0 |
126 | and [devfn], 0 |
| 118 | .next_dev: |
127 | .next_dev: |
| 119 | stdcall PciRead16, [bus], [devfn], dword 0x08 ; read class/subclass |
- | |
| 120 | test eax, eax |
- | |
| 121 | jz .next |
- | |
| 122 | cmp eax, -1 |
- | |
| Line 123... | Line 128... | ||
| 123 | je .next |
128 | stdcall PciRead16, [bus], [devfn], dword 0x0a ; read class/subclass |
| 124 | 129 | ||
| Line 125... | Line 130... | ||
| 125 | cmp ax, 0x0302 ; display controller - 3d controller |
130 | cmp ax, 0x0302 ; display controller - 3d controller |
| Line 135... | Line 140... | ||
| 135 | mov eax, [bus] |
140 | mov eax, [bus] |
| 136 | inc eax |
141 | inc eax |
| 137 | mov [bus], eax |
142 | mov [bus], eax |
| 138 | cmp eax, [last_bus] |
143 | cmp eax, [last_bus] |
| 139 | jna .next_bus |
144 | jna .next_bus |
| - | 145 | ||
| - | 146 | .error: |
|
| - | 147 | if DEBUG |
|
| - | 148 | mov esi, msgFail |
|
| - | 149 | call SysMsgBoardStr |
|
| - | 150 | end if |
|
| - | 151 | ||
| 140 | xor eax, eax |
152 | xor eax, eax |
| - | 153 | inc eax |
|
| 141 | ret |
154 | ret |
| Line 142... | Line 155... | ||
| 142 | 155 | ||
| 143 | .found: |
156 | .found: |
| 144 | stdcall PciRead8, [bus], [devfn], dword 0x06 ; read prog IF |
157 | stdcall PciRead8, [bus], [devfn], dword 0x06 ; read prog IF |
| 145 | test al, 1 shl 4 ; got capabilities list? |
158 | test al, 1 shl 4 ; got capabilities list? |
| Line -... | Line 159... | ||
| - | 159 | jnz .got_capabilities_list |
|
| - | 160 | ||
| - | 161 | ; TODO: Do it the old way: detect device and check with a list of known capabilities |
|
| - | 162 | ; stupid pre PCI 2.2 board.... |
|
| - | 163 | ||
| 146 | jnz .got_capabilities_list |
164 | jmp .next |
| 147 | 165 | ||
| 148 | .got_capabilities_list: |
166 | .got_capabilities_list: |
| 149 | stdcall PciRead8, [bus], [devfn], dword 0x34 ; read capabilities offset |
167 | stdcall PciRead8, [bus], [devfn], dword 0x34 ; read capabilities offset |
| Line 155... | Line 173... | ||
| 155 | cmp al, 0x02 ; AGP |
173 | cmp al, 0x02 ; AGP |
| 156 | je .got_agp |
174 | je .got_agp |
| 157 | movzx esi, ah ; pointer to next capability |
175 | movzx esi, ah ; pointer to next capability |
| 158 | test esi, esi |
176 | test esi, esi |
| 159 | jnz .read_capability |
177 | jnz .read_capability |
| 160 | .error: |
- | |
| 161 | xor eax, eax |
- | |
| 162 | inc eax |
178 | jmp .next |
| 163 | ret |
- | |
| Line 164... | Line 179... | ||
| 164 | 179 | ||
| 165 | .got_agp: |
180 | .got_agp: |
| 166 | shl eax, 16 |
181 | shl eax, 16 |
| 167 | mov [revision], al ; high nibble = major revision |
182 | mov [revision], al ; high nibble = major revision |
| Line 181... | Line 196... | ||
| 181 | 196 | ||
| 182 | test al, 1b |
197 | test al, 1b |
| Line 183... | Line 198... | ||
| 183 | jz .error |
198 | jz .error |
| 184 | 199 | ||
| 185 | .001b: |
200 | .001b: |
| Line 186... | Line 201... | ||
| 186 | mov [speed], 001b |
201 | mov [cmd], 001b |
| 187 | jmp .agp_go |
202 | jmp .agp_go |
| 188 | 203 | ||
| Line 189... | Line 204... | ||
| 189 | .010b: |
204 | .010b: |
| 190 | mov [speed], 010b |
205 | mov [cmd], 010b |
| 191 | jmp .agp_go |
206 | jmp .agp_go |
| Line 192... | Line 207... | ||
| 192 | 207 | ||
| 193 | .100b: |
208 | .100b: |
| 194 | mov [speed], 100b |
209 | mov [cmd], 100b |
| 195 | jmp .agp_go |
210 | jmp .agp_go |
| 196 | 211 | ||
| 197 | .agp_3: |
212 | .agp_3: |
| 198 | stdcall PciRead32, [bus], [devfn], esi ; read AGP status |
213 | stdcall PciRead32, [bus], [devfn], esi ; read AGP status |
| 199 | test al, 1 shl 3 |
214 | test al, 1 shl 3 |
| 200 | jz .agp_2 |
215 | jz .agp_2 |
| Line 201... | Line 216... | ||
| 201 | and al, 11b |
216 | mov [cmd], eax |
| - | 217 | and [cmd], 11b |
|
| - | 218 | cmp [cmd], 11b |
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| - | 219 | jne .agp_go |
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| - | 220 | mov [cmd], 10b |
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| - | 221 | ||
| - | 222 | .agp_go: |
|
| - | 223 | ||
| - | 224 | if FAST_WRITE |
|
| - | 225 | test ax, 1 shl 4 |
|
| - | 226 | jz @f |
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| - | 227 | or [cmd], 1 shl 4 |
|
| - | 228 | @@: |
|
| - | 229 | end if |
|
| 202 | mov [speed], al |
230 | if SIDE_BAND_ADDRESSING |
| 203 | cmp al, 11b |
- | |
| 204 | jne .agp_go |
- | |
| 205 | mov [speed], 10b |
231 | test ax, 1 shl 9 |
| 206 | 232 | jz @f |
|
| 207 | .agp_go: |
233 | or [cmd], 1 shl 9 |
| Line -... | Line 234... | ||
| - | 234 | @@: |
|
| - | 235 | end if |
|
| - | 236 | add esi, 4 |
|
| - | 237 | mov eax, [cmd] |
|
| - | 238 | or eax, 1 shl 8 ; enable AGP |
|
| 208 | add esi, 4 |
239 | stdcall PciWrite32, [bus], [devfn], esi, eax ; write AGP cmd |
| Line 209... | Line 240... | ||
| 209 | stdcall PciRead32, [bus], [devfn], esi ; read AGP cmd |
240 | |
| Line 210... | Line 241... | ||
| 210 | and al, not 111b ; set max speed |
241 | if DEBUG |
| Line 211... | Line 242... | ||
| 211 | or al, [speed] |
242 | mov esi, msgOK |
| 212 | or eax, 1 shl 8 ; enable AGP |
243 | call SysMsgBoardStr |
| Line 213... | Line 244... | ||
| 213 | stdcall PciWrite32, [bus], [devfn], esi, eax ; write AGP cmd |
244 | end if |
| Line 214... | Line 245... | ||
| 214 | 245 | ||
| 215 | ret |
- | |
| 216 | 246 | ret |
|
| - | 247 | ||
| Line 217... | Line 248... | ||
| 217 | endp |
248 | endp |
| Line 218... | Line 249... | ||
| 218 | 249 | ||
| Line 219... | Line 250... | ||
| 219 | 250 | ||
| 220 | ;all initialized data place here |
251 | ; initialized data |
| 221 | 252 | ||
| 222 | align 4 |
253 | align 4 |