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pcidev: don't scan for other functions on single-function devices

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git-svn-id: svn://kolibrios.org@1946 a494cfbc-eb01-0410-851d-a64ba20cac60
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CleverMouse 2011-06-03 14:32:52 +00:00
parent 879941ae90
commit a12b9621d9
1 changed files with 11 additions and 1 deletions
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12
programs/system/pcidev/trunk/PCIDEV.ASM
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@ -306,9 +306,19 @@ Start_Enum:
mov cl, 0x3c ; Register to read (Get IRQ)
@@: mcall 62 ; Read it
mov [PCI_IRQ], al ; Save it
;
; by CleverMouse juny 2011
mov cl, 0x0e
mcall 62
push eax
inc byte [total] ; one more device found
call Print_New_Device ; print device info to screen
; don't scan for nonzero functions if zero function says "not multifunction device"
pop eax
test al, al
js nextDev
test byte [V_Dev], 7
jz nextDev
or byte [V_Dev], 7
nextDev:
inc byte [V_Dev] ; next device on this bus
jnz Start_Enum ; jump until we reach zero