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added latency config macro to pci.inc

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git-svn-id: svn://kolibrios.org@2911 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
hidnplayr 2012-08-07 20:26:26 +00:00
parent 5ae9070151
commit 8ba3e5e11b
1 changed files with 14 additions and 5 deletions
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19
kernel/branches/net/drivers/bus/pci.inc
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@ -114,11 +114,20 @@ macro make_bus_master bus, dev {
movzx ecx, bus movzx ecx, bus
movzx edx, dev movzx edx, dev
stdcall PciRead32, ecx ,edx, PCI_REG_COMMAND stdcall PciRead32, ecx ,edx, PCI_REG_COMMAND
or al, PCI_BIT_MASTER
or al, PCI_BIT_MASTER ;or PCI_BIT_PIO
; and al, not PCI_BIT_MMIO
stdcall PciWrite32, ecx, edx, PCI_REG_COMMAND, eax stdcall PciWrite32, ecx, edx, PCI_REG_COMMAND, eax
;; TODO: try to switch to PIO, and check if PIO works or not.. }
} macro adjust_latency bus, dev, min {
movzx ecx, bus
movzx edx, dev
stdcall PciRead8, ecx ,edx, PCI_REG_LATENCY
cmp al, min
ja @f
mov al, min
stdcall PciWrite8, ecx, edx, PCI_REG_LATENCY, eax
@@:
}