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Rev 4453 Rev 4599
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;;                                                              ;;
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;;                                                              ;;
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;;  See file COPYING for details                                ;;
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;;  See file COPYING for details                                ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 4453 $
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$Revision: 4599 $
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 25 
 
26 
;***************************************************************************
 26 
;***************************************************************************
27 
;   Function
 27 
;   Function
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        mov     esi, eax ; save register size into ESI
 163 
        mov     esi, eax ; save register size into ESI
164 
        and     esi, 3
 164 
        and     esi, 3
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 165 
 
166 
        call    pci_make_config_cmd
 166 
        call    pci_make_config_cmd
167 
        mov     ebx, eax
 - 
 
168 
                ; get current state
 167 
        mov     ebx, eax
169 
        mov     dx, 0xcf8
 - 
 
170 
        in      eax, dx
 - 
 
171 
        push    eax
 168 
        mov     dx, 0xcf8
172 
                ; set up addressing to config data
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                ; set up addressing to config data
173 
        mov     eax, ebx
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        mov     eax, ebx
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        and     al, 0xfc; make address dword-aligned
 171 
        and     al, 0xfc; make address dword-aligned
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        out     dx, eax
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        out     dx, eax
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pci_read_word1:
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pci_read_word1:
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        in      ax, dx
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        in      ax, dx
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        jmp     pci_fin_read1
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        jmp     pci_fin_read1
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pci_read_dword1:
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pci_read_dword1:
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        in      eax, dx
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        in      eax, dx
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        jmp     pci_fin_read1
 - 
 
198 
pci_fin_read1:
 194 
pci_fin_read1:
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                ; restore configuration control
 - 
 
200 
        xchg    eax, [esp]
 - 
 
201 
        mov     dx, 0xcf8
 - 
 
202 
        out     dx, eax
 - 
 
203 
 
 - 
 
204 
        pop     eax
 - 
 
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        pop     esi ebx
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        pop     esi ebx
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        ret
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        ret
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pci_read_reg_2:
 197 
pci_read_reg_2:
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 198 
 
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        test    bh, 128 ;mech#2 only supports 16 devices per bus
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        test    bh, 128 ;mech#2 only supports 16 devices per bus
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        jnz     pci_read_reg_err
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        jnz     pci_read_reg_err
211 
 
 201 
 
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        mov     esi, eax ; save register size into ESI
 - 
 
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        and     esi, 3
 - 
 
214 
 
 202 
        mov     esi, eax ; save register size into ESI
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        push    eax
 - 
 
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                ;store current state of config space
 - 
 
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        mov     dx, 0xcf8
 - 
 
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        in      al, dx
 - 
 
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        mov     ah, al
 - 
 
220 
        mov     dl, 0xfa
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        and     esi, 3
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        in      al, dx
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222 
 
 205 
        mov     dx, 0xcfa
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        xchg    eax, [esp]
 206 
 
224 
                ; out 0xcfa,bus
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                ; out 0xcfa,bus
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pci_read_word2:
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pci_read_word2:
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        in      ax, dx
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        in      ax, dx
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        jmp     pci_fin_read2
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        jmp     pci_fin_read2
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pci_read_dword2:
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pci_read_dword2:
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        in      eax, dx
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        in      eax, dx
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;       jmp pci_fin_read2
 - 
 
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pci_fin_read2:
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pci_fin_read2:
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 - 
 
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                ; restore configuration space
 - 
 
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        xchg    eax, [esp]
 - 
 
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        mov     dx, 0xcfa
 - 
 
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        out     dx, al
 - 
 
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        mov     dl, 0xf8
 - 
 
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        mov     al, ah
 - 
 
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        out     dx, al
 - 
 
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 - 
 
263 
        pop     eax
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        pop     esi ebx
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        pop     esi ebx
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        ret
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        ret
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        mov     esi, eax ; save register size into ESI
 267 
        mov     esi, eax ; save register size into ESI
295 
        and     esi, 3
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        and     esi, 3
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 269 
 
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        call    pci_make_config_cmd
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        call    pci_make_config_cmd
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        mov     ebx, eax
 - 
 
299 
                ; get current state into ecx
 271 
        mov     ebx, eax
300 
        mov     dx, 0xcf8
 - 
 
301 
        in      eax, dx
 - 
 
302 
        push    eax
 272 
        mov     dx, 0xcf8
303 
                ; set up addressing to config data
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                ; set up addressing to config data
304 
        mov     eax, ebx
 274 
        mov     eax, ebx
305 
        and     al, 0xfc; make address dword-aligned
 275 
        and     al, 0xfc; make address dword-aligned
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        out     dx, eax
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        out     dx, eax
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pci_write_word1:
 294 
pci_write_word1:
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        out     dx, ax
 295 
        out     dx, ax
326 
        jmp     pci_fin_write1
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        jmp     pci_fin_write1
327 
pci_write_dword1:
 297 
pci_write_dword1:
328 
        out     dx, eax
 298 
        out     dx, eax
329 
        jmp     pci_fin_write1
 - 
 
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pci_fin_write1:
 299 
pci_fin_write1:
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 - 
 
332 
                ; restore configuration control
 - 
 
333 
        pop     eax
 - 
 
334 
        mov     dl, 0xf8
 - 
 
335 
        out     dx, eax
 - 
 
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 300 
 
337 
        xor     eax, eax
 301 
        xor     eax, eax
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        pop     ebx esi
 302 
        pop     ebx esi
339 
 
 303 
 
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 309 
 
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        mov     esi, eax ; save register size into ESI
 - 
 
348 
        and     esi, 3
 - 
 
349 
 
 311 
        mov     esi, eax ; save register size into ESI
350 
        push    eax
 - 
 
351 
                ;store current state of config space
 - 
 
352 
        mov     dx, 0xcf8
 - 
 
353 
        in      al, dx
 - 
 
354 
        mov     ah, al
 - 
 
355 
        mov     dl, 0xfa
 312 
        and     esi, 3
356 
        in      al, dx
 313 
 
357 
        xchg    eax, [esp]
 314 
        mov     dx, 0xcfa
358 
                ; out 0xcfa,bus
 315 
                ; out 0xcfa,bus
359 
        mov     al, ah
 316 
        mov     al, ah
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383 
pci_write_word2:
 340 
pci_write_word2:
384 
        out     dx, ax
 341 
        out     dx, ax
385 
        jmp     pci_fin_write2
 342 
        jmp     pci_fin_write2
386 
pci_write_dword2:
 343 
pci_write_dword2:
387 
        out     dx, eax
 344 
        out     dx, eax
388 
        jmp     pci_fin_write2
 - 
 
389 
pci_fin_write2:
 345 
pci_fin_write2:
390 
                ; restore configuration space
 - 
 
391 
        pop     eax
 - 
 
392 
        mov     dx, 0xcfa
 - 
 
393 
        out     dx, al
 - 
 
394 
        mov     dl, 0xf8
 - 
 
395 
        mov     al, ah
 - 
 
396 
        out     dx, al
 - 
 
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397 
 
 346 
 
398 
        xor     eax, eax
 347 
        xor     eax, eax
399 
        pop     ebx esi
 348 
        pop     ebx esi